CN115429646A - Scalp Care Device - Google Patents

Abstract

The present invention provides a scalp care device. The scalp care device in embodiment of this invention is equipped with a main-body part. The main body accommodates a motor (drive source) that drives the output shaft (4551). Moreover, the scalp care device in embodiment of this invention is equipped with the 2nd massage part (massage part). The second massage part (massage part) has a plurality of second massage elements (massage elements) that reciprocate along a plane (P3) perpendicular to the axial direction of the output shaft (4551) by driving the output shaft (4551) (43).

Description

Scalp Care Device

technical field

The present invention relates to a scalp care device.

Background technique

In the past, as a scalp care device, for example, a scalp care device having the following parts as disclosed in the following patent document 1 is known: a device main body housing a motor that drives an output shaft; And the action of the massage protrusions (massage piece).

In the scalp care device disclosed in Patent Document 1, the massage protrusions are connected to the output shaft in a state inclined relative to the axial direction of the output shaft, and the massage protrusions are connected to the output shaft in a state inclined relative to the axial direction of the output shaft. Center rotation. In this way, the scalp care device disclosed in Patent Document 1 makes the massage protrusions come into contact with the scalp 1 while rotating, so that the scalp can be stimulated by the rotation.

prior art literature

patent documents

Patent Document 1: Japanese Patent No. 6220173

Contents of the invention

However, since the scalp has a substantially convex curved surface, in conventional scalp care devices, the massage protrusions (massage elements) may not be brought into contact with the scalp at an effective angle depending on the position of the rotation.

Therefore, the present invention provides a scalp care device capable of more reliably bringing the massaging member into contact with the scalp.

The scalp care device in the present invention includes: a main body that accommodates a drive source that drives the output shaft; and a massage unit that reciprocates along a plane perpendicular to the axial direction of the output shaft driven by the output shaft. multiple massage pieces.

The scalp care device in the present invention can make the massaging member contact the scalp more reliably.

Description of drawings

Fig. 1 is a perspective view seen from one direction showing the structure of a scalp care device in which a first massage attachment is attached to a main body.

Fig. 2 is a perspective view seen from another direction showing the structure of the scalp care device with the first massage attachment attached to the main body.

Fig. 3 is a perspective view seen from one direction showing the structure of the scalp care device in which the second massage attachment is attached to the main body.

4 is a perspective view seen from another direction, showing the structure of the scalp care device in which the second massage attachment is attached to the main body.

Fig. 5 is a perspective view showing the structure of the main body as seen from one direction.

Fig. 6 is a perspective view showing the structure of the main body portion viewed from another direction.

Fig. 7 is an exploded perspective view showing the structure of the main body.

Fig. 8 is a perspective view showing the structure of the first massage attachment seen from one direction.

Fig. 9 is a perspective view showing the structure of the first massage attachment viewed from another direction.

Fig. 10 is a perspective view showing a state in which the first massage part of the first massage attachment is detached from the head.

Fig. 11 is an exploded perspective view showing the structure of the head of the first massage attachment.

Fig. 12 is an exploded perspective view showing the structure of a first massage portion of the first massage attachment.

Fig. 13 is a rear view showing the structure of the first massage attachment.

Fig. 14 is a diagram for explaining the operation of the deceleration mechanism provided in the first massage attachment.

Fig. 15 is a plan view showing the structure of the first massage attachment.

Fig. 16 is an A-A sectional view of the first massage accessory shown in Fig. 13 .

Fig. 17 is a B-B sectional view of the first massage accessory shown in Fig. 13 .

Fig. 18 is a C-C sectional view of the first massage accessory shown in Fig. 15 .

Fig. 19 is a D-D sectional view of the first massage accessory shown in Fig. 15 .

Fig. 20 is an enlarged perspective view showing the structure of a first massaging element included in the first massaging attachment.

Fig. 21 is a partially enlarged view of the first massage accessory shown in Fig. 16 .

Fig. 22 is a partially enlarged view of the first massage accessory shown in Fig. 17 .

Fig. 23 is a view explaining a method of forming a core material portion of a massaging protrusion included in the first massaging element using a mold.

Fig. 24 is a partial enlarged view showing the structure of the rubber cover in a state where the rubber cover holder is removed.

Fig. 25 is a view explaining a method of forming the elastic portion of the massaging protrusion included in the first massaging element using a mold.

FIG. 26 is a diagram showing a modified example of the structure of the rubber cover.

Fig. 27 is a diagram showing another modified example of the structure of the rubber cover.

Fig. 28 is a perspective view showing the structure of the second massage attachment seen from one direction.

Fig. 29 is a perspective view showing the structure of the second massage attachment viewed from another direction.

Fig. 30 is a side view showing the structure of the second massage attachment.

Fig. 31 is a perspective view showing a state in which the second massage part of the second massage attachment is detached from the head.

Fig. 32 is an exploded perspective view showing the structure of the head of the second massage attachment.

Fig. 33 is an exploded perspective view showing the structure of a second massage part of the second massage attachment.

Fig. 34 is a rear view showing the structure of the second massage attachment.

Fig. 35 is a diagram for explaining the operation of the deceleration mechanism provided in the second massage attachment.

Fig. 36 is a diagram for explaining the operation of the second massaging element provided in the second massaging attachment.

Fig. 37 is a view showing the structure of the second massaging element as viewed along the direction of the output shaft of the second massaging element on one side.

Fig. 38 is an E-E sectional view of the second massage accessory shown in Fig. 34 .

Fig. 39 is an F-F sectional view of the second massage accessory shown in Fig. 34 .

Fig. 40 is a sectional view showing a state where the rubber cover is removed from the massaging element base.

Fig. 41 is a cross-sectional view showing a state in which a rubber cover is attached to the massaging element base and the rubber cover holder.

Fig. 42 is a diagram illustrating a method of forming the core portion of the massaging protrusions included in the second massaging element using a mold.

Fig. 43 is a view explaining a method of forming the core portion of the massaging protrusions included in the second massaging element using a mold.

Fig. 44 is a G-G sectional view of the second massage accessory shown in Fig. 35 .

Fig. 45 is a H-H sectional view of the second massage accessory shown in Fig. 37 .

Fig. 46 is an I-I sectional view of the second massage accessory shown in Fig. 37 .

Fig. 47 is a J-J sectional view of the second massage accessory shown in Fig. 37 .

Fig. 48 is a perspective view showing the structure of the second massage part of the second massage attachment.

Fig. 49 is an enlarged perspective view showing the structure of massage protrusions of the second massage attachment.

FIG. 50 is a diagram showing an example of use of massage protrusions of a comparative example.

Fig. 51 is a diagram illustrating an example of use of massage protrusions with inclined distal end surfaces.

Fig. 52 is a view explaining the operation of the second massaging element included in the second massaging attachment.

Fig. 53 is a diagram illustrating a first modified example of the operation of the second massaging element.

Fig. 54 is a diagram illustrating a second modified example of the operation of the second massaging element.

Fig. 55 is a diagram illustrating a third modification example of the operation of the second massaging element.

Fig. 56 is a diagram illustrating a fourth modification example of the operation of the second massaging element.

Fig. 57 is a diagram illustrating a fifth modification example of the operation of the second massaging element.

Fig. 58 is a diagram illustrating a sixth modification example of the operation of the second massaging element.

Fig. 59 is a diagram illustrating a seventh modification example of the operation of the second massaging element.

Fig. 60 is a diagram illustrating an eighth modification example of the operation of the second massaging element.

Explanation of reference signs

1. Scalp; 10. Scalp care device; 20. Main body; 20a, gripping part; 21. Shell; 22. Control substrate; 23. Motor base; 24. Main body side deceleration mechanism; 25. Waterproof gasket; Main body side drive transmission part; 27. Pad pressing plate; 28. Hook; 30. The first massage accessory; 31. Head; 32. The first massage part; 33. The first massage part; 35. The first massage accessory side deceleration Mechanism; 40, the second massage accessory; 41, the head; 42, the second massage part (massage part); 43, the second massage part (massage part); 43A, the first massage protrusion; 43B, the second massage protrusion; 43C, auxiliary massage protrusion; 45, second massage accessory side deceleration mechanism; 46, guide rail; 47, sliding base; 50, mold; 51, upper mold; 52, lower mold; 60, mold; 61, upper mold; 62, Lower mold; 70, mold; 71, upper mold; 72, lower mold; 80, mold; 81, upper mold; 82, lower mold; 211, cylindrical wall; 212, upper cover; 213, waterproof base; 213a, the lower surface; 214, the fastening screw of the waterproof board; 215, the fastening screw of the waterproof base; 216, the fastening screw of the pad pressing plate; 221, the gasket; 222, the switch button; 223, the charging terminal; 224, O Shaped ring; 231, motor base fastening screw; 232, rechargeable battery; 233, interlock detection switch; 234, interlock detection switch cover; 235, motor (drive source); 241, pinion; 242, the first reduction gear 243, the second reduction gear; 244, the third reduction gear; 245, the output gear; 246, the output shaft; 247, the bearing; 310, the head shell; 311, the accessory shell; 312, the accessory base; 321, rubber cover; 322, rubber cover frame; 323, massage part base; 331, base; 331a, top surface (lower surface); 332, massage protrusion; 333, inclined massage protrusion; 341, interlock switch; 342, apply Force spring; 351, relay gear; 352, first massage accessory side drive transmission part; 353, drive transmission gear; 354, output gear; 355, rotating base; 410, head shell; 411, accessory shell; 412, accessories Base; 421, rubber cover; 422, rubber cover frame; 423, massage piece base; 431, base; 431a, top surface (lower surface); 432, massage protrusion; 433, inclined massage protrusion; 441, interlock switch; 442 , force spring; 451, relay gear; 452, second massage accessory side drive transmission part; 453, drive transmission gear; 454, output gear; 455, rotating base; 461, track part; 462, installation rib; 471, Main body part; 472, flange part; 2121, plate part; 2121a, through hole; 2122, waterproof plate part; 2122a, through hole; 2131, rechargeable battery storage recess; 2132, hook storage part; ;2134, output shaft insertion hole; 2135, through hole; 2351, motor body; 2352, motor shaft; 2421, first shaft; 2431, second shaft; 2441, third shaft; 3112a, top surface; 3112b, through hole; 3112c, hook insertion recess; 3112d, engaging part; 3112e, through hole; 3121, fastening screw of accessory base; 3211, protrusion; 3221, insertion rib; 3222, installation protrusion; 3231, base portion; 3231a, insertion hole; 3232, core material portion; Inclined elastic part; 3332, inclined core material part; 3332b, outer peripheral surface; 3511, intermediate shaft; 3521, gear part; 3531, drive transmission shaft; 3541, output gear bearing; 3551, output shaft; 3552, eccentric shaft; 3553 , the fastening screw of the rotating base; 4111, the surrounding wall; 4112, the top wall; 4112a, the top surface; 4112b, the through hole; 4112c, the hook insertion recess; 4121a, through hole; 4122, guide rail storage recess; 4123, accessory base fastening screw; 4124, guide rail fastening screw; 4211, protrusion; 4212, mounting hole; 4213, following deformation part; Bar part; 4223, insertion rib; 4224, installation protrusion; 4231, base part; 4231a, sliding base storage part; 4232, core material part; 4321, base part; 4322c, protruding small protrusions; 4331, inclined elastic part; 4332, inclined core material part; 4332b, outer peripheral surface; 4511, intermediate shaft; 4521, gear part; 4531, upper gear; Drive transmission shaft; 4541, output gear bearing; 4551, output shaft; 4552, eccentric shaft; 4553, fastening screw of rotating base; 4711, eccentric shaft storage part; 32131, elastic part; Department; 43221, tapered part; C1, central axis; C2, line of symmetry; P1, plane passing through the central axis; P2, symmetrical plane; P3, horizontal plane (a plane orthogonal to the axial direction of the output shaft); P4, horizontal plane ;PL, parting line; T1, trajectory; T1a, one end; T1b, the other end; a, vector direction; θ, inclination angle.

detailed description

Embodiments will be described in detail below with reference to the drawings. However, more detailed description than necessary is sometimes omitted. For example, detailed descriptions of already well-known items or repeated descriptions of substantially the same configurations may be omitted.

In addition, the drawings and the following descriptions are provided for those skilled in the art to fully understand the present invention, and are not intended to limit the subject matter described in the claims.

In addition, below, the 1st massage attachment 30 and the 2nd massage attachment 40 mentioned later may be called simply "massage attachment" without distinguishing in particular. In addition, in the following, the direction in which the massage attachment moves relative to the main body 20 when the massage attachment is attached to and detached from the main body 20 will be described as the up-down direction. In addition, the upper part and the lower part are prescribed|regulated and demonstrated in the state where the massage attachment is located in the lower part of the main-body part 20. FIG.

[An example of a scalp care device]

The scalp care device 10 of this embodiment is provided with the main body part 20 which accommodates the motor 235 which is a drive source, and the some massage attachment which attaches and detachably with respect to the main body part 20 so that it may replace.

In this way, in the scalp care device 10 of this embodiment, a plurality of massage attachments can be attached to and detached from the main body 20 so as to be replaceable. In other words, the scalp care device 10 according to the present embodiment includes one massage attachment which can be attached to or attached to the main body 20 so as to be replaceable during use. That is, the scalp care device in the present invention includes a plurality of massage attachments as candidates for attachment, and includes one massage attachment selectively attached by the user at the time of use.

Moreover, in this embodiment, as shown in FIGS. .

That is, in the present embodiment, the scalp care device 10 includes two types of massage attachments, the first massage attachment 30 and the second massage attachment 40 , and each massage attachment is detachable from the common main body 20 .

Moreover, different scalp care effects can be obtained by replacing the massage accessories installed on the main body 20 . In addition, hereinafter, "massage accessory" is also simply referred to as "accessory".

In the present embodiment, the first massage attachment 30 is an attachment that performs a spiral motion as a rotating motion, and the second massage attachment 40 is an attachment that performs a sliding motion that moves in the left and right directions in the state shown in FIG. 36 .

That is, the scalp care device 10 is capable of switching between a sliding movement moving in the left and right directions and a spiral movement as a rotating movement with respect to the main body (the main body part 20 ) by using the accessories (the first massage accessory 30 and the second massage accessory 40 ). scalp beauty device. Hereinafter, such a scalp cosmetic device (scalp care device 10) will be described.

[An example of the main body part]

In this embodiment, as shown in FIGS. 5 to 7 , the main body portion 20 includes a housing 21 constituting an outline. The housing 21 can be formed using, for example, an insulating synthetic resin material.

In addition, in this embodiment, the housing 21 is formed by joining a plurality of divided bodies, and a cavity is formed inside the housing 21 formed by joining the divided bodies. In addition, various electrical components are accommodated in the cavity. Specifically, a motor 235 , a rechargeable battery 232 for supplying electric power to the motor 235 , a control board 22 for controlling on/off of the power supply (on/off of driving of the motor 235 ), and the like are built in a cavity formed inside the casing 21 .

In addition, in the present embodiment, the casing 21 includes: a cylindrical wall portion 211 having a substantially cylindrical shape penetrating in the vertical direction; an upper cover portion 212 arranged to cover the upper opening of the cylindrical wall portion 211; The waterproof base 213 is arranged to cover the lower opening of the cylindrical wall portion 211 .

A substantially quadrangular opening is formed on one end side (lower end side) of the cylindrical wall portion 211 where the massage attachment is attached. Further, a substantially quadrangular opening having a smaller opening area than the opening formed at one end (lower end) is formed on the other end (upper end) of the cylindrical wall portion 211 .

In addition, the cylindrical wall portion 211 has a shape in which the diameter of the openings formed on one end side (lower end side) and the other end side (upper end side) is reduced at an intermediate position in the vertical direction. Specifically, the cylindrical wall portion 211 has a shape in which the diameter gradually decreases from one end side in the vertical direction toward a midway position, and gradually decreases in diameter from the other end side toward a midway position. In addition, in this embodiment, the diameter-reduced part of the cylindrical wall part 211 is formed in the position close to the opening part formed in the other end side (upper end side).

Thus, by providing the reduced-diameter portion in the middle of the vertical direction of the cylindrical wall portion 211 , when using the scalp care device 10 , the user can hold the reduced-diameter portion of the cylindrical wall portion 211 and use it. That is, in the present embodiment, the reduced-diameter portion of the cylindrical wall portion 211 serves as the grip portion 20 a of the main body portion 20 .

Furthermore, an opening formed on the other end side (upper end side) of the cylindrical wall portion 211 in the vertical direction is closed by the upper cover portion 212 . In this embodiment, the upper cover part 212 includes: a waterproof board part 2122 which seals an opening formed on the other end side (upper end side); upper side.

The waterproof plate portion 2122 is fixed to the housing 21 by the waterproof plate portion fastening screws 214 . And, in a state where the waterproof plate portion 2122 is fixed to the case 21, a gap between the inner surface of the cylindrical wall portion 211 and the waterproof plate portion 2122 is sealed by a sealing member.

In addition, a switch button 222 for operating a push-type power switch (not shown) for switching on and off the power supply (on and off the drive of the motor 235 ) is provided on the upper cover 212 so as to be exposed upward.

In the present embodiment, the control board 22 is disposed below the waterproof plate portion 2122 , and the power switch is placed on the control board 22 . Specifically, a through hole 2122 a penetrating in the vertical direction is formed in the waterproof plate portion 2122 , and the power switch is attached to a position overlapping the through hole 2122 a on the upper side of the control board 22 . At this time, the gap between the power switch and the through hole 2122a is covered with the gasket 221 integrally formed with the waterproof plate portion 2122 . In this way, water does not enter the inside from the through hole 2122a.

In addition, a through-hole 2121a penetrating in the up-down direction is also formed in the plate portion 2121, and the switch button 222 is inserted into the through-hole 2121a. In addition, in this embodiment, a push-type power switch was exemplified as the power switch, but a slide-type switch or other switches may be used as long as the switch can turn on and off the power.

In addition, a motor 235 is electrically connected to the control board 22 via lead wires. In the present embodiment, the motor 235 is built into the casing 21 while being held by the motor base 23 disposed below the control board 22 . The motor base 23 is fixed to the housing 21 by motor base fastening screws 231 .

Furthermore, a motor 235 is held on an upper portion of the motor base 23 , and a rechargeable battery 232 is held on a lower portion of the motor base 23 . In addition, as the rechargeable battery 232, a lithium ion rechargeable battery, a nickel-metal hydride rechargeable battery, or the like can be used.

Furthermore, in the present embodiment, an interlock detection switch 233 is attached to the motor base 23 . This interlock detection switch 233 is used to detect pressing of an interlock switch described later of the massage attachment when the massage attachment is attached to the main body 20 . And, the motor 235 can be driven by causing the interlock detection switch 233 to detect the pressing of the interlock switch. That is, in the present embodiment, the motor 235 is not driven even if the switch button 222 is operated in a state where the interlock detection switch 233 has not detected the pressing of the interlock switch.

In addition, as shown in FIG. 7 , charging terminal 223 is attached to cylindrical wall portion 211 in a state of being sealed by O-ring 224 so as to be exposed to the outside, and a charging cable (not shown) or the like can be inserted therein. That is, rechargeable battery 232 is charged by inserting a charging cable or the like into charging terminal 223 . In addition, the method of charging the rechargeable battery 232 is not limited to the method of inserting a charging cable or the like into the charging terminal 223, for example, a charging method realized by non-contact power supply or a method realized by long-distance power transmission using a power transmission system may also be used. Charging method etc.

In addition, in the present embodiment, the motor 235 includes a motor body 2351 and a motor shaft 2352 , and is held by the motor base 23 in a state where the motor shaft 2352 protrudes downward relative to the motor body 2351 . That is, the motor 235 is built in the cavity of the casing 21 in a state where the direction of the rotation axis substantially coincides with the vertical direction.

Further, the main body side drive transmission part 26 is connected to the motor shaft 2352 protruding upward via the main body side reduction mechanism 24 .

The main body side reduction mechanism 24 includes a pinion gear 241 attached to a motor shaft 2352 . The pinion gear 241 is attached to the motor shaft 2352 so as to rotate together with the motor shaft 2352 .

In addition, the main body side reduction mechanism 24 includes: a first reduction gear 242 that meshes with the pinion gear 241 and rotates centering on the vertical direction; Install.

And, the main body side deceleration mechanism 24 is provided with: the 2nd deceleration gear 243, and it meshes with the 1st deceleration gear 242, and it rotates centering on the up-down direction; Install.

In addition, the main body side reduction mechanism 24 includes: a third reduction gear 244 meshing with the second reduction gear 243 and rotating centering on the vertical direction; and a third shaft 2441 extending in the vertical direction for the third reduction gear 244 Install.

Also, the main body side reduction mechanism 24 includes an output gear 245 meshing with the third reduction gear 244 and rotating centering on the vertical direction, and an output shaft 246 extending in the vertical direction to which the output gear 245 is attached. The output shaft 246 is held by bearings 247 .

Moreover, the main body side drive transmission part 26 is connected to the lower end of the output shaft 246. As shown in FIG. This main body side drive transmission part 26 is for transmitting the drive (rotation) of the motor 235 to the massaging element mentioned later of the massage attachment attached to the main body part 20. As shown in FIG.

By setting it as such a structure, the drive of the rotation speed smaller than the rotation speed of the motor 235 is transmitted to the massage attachment attached to the main-body part 20. FIG. In addition, when the main body 20 is viewed from the back (in a state where the main body 20 is viewed from the lower side in the vertical direction as the detachment direction of the massage accessory with respect to the main body 20), the main body side drive transmission part 26 has a regular hexagonal shape. (polygon shape). In this way, it is possible to attach the massage accessory side drive transmission part described later to the main body side drive transmission part 26 in a state in which idling is suppressed. This main body side drive transmission part 26 and the massaging attachment side drive transmission part should just be attached in the state suppressed idling, and it is not limited to a polygonal shape. For example, it may be cut into a D-shaped structure, and idling can be suppressed by using means for increasing the frictional force between the main body side drive transmission part 26 and the massage accessory side drive transmission part.

In addition, in the present embodiment, the opening formed on one end side (lower end side) of the cylindrical wall portion 211 is sealed by the waterproof base 213 . The waterproof base 213 is fixed to the housing 21 by waterproof base fastening screws 215 .

In this embodiment, the waterproof base 213 is plate-shaped, and the flat lower surface 213a extending in the horizontal direction of the waterproof base 213 serves as the end surface on the side where the massage accessories are mounted.

In addition, a rechargeable battery storage recess 2131 is formed on the upper side of the waterproof base 213 , and the lower part of the rechargeable battery 232 is stored in the rechargeable battery storage recess 2131 when the waterproof base 213 is fixed to the case 21 .

In addition, a hook housing portion 2132 protruding downward and opening radially outward is formed on the lower side of the waterproof base 213, and a hook that engages with an engaging portion described later of the massage accessory is accommodated in the hook housing portion 2132. hook 28. The hook 28 is housed in the hook accommodating portion 2132 in a state of being biased radially outward by an urging spring (not shown).

In addition, the waterproof base 213 is formed with an output shaft insertion hole 2134 penetrating in the vertical direction and into which the output shaft 246 is inserted. Also, a gap formed between the outer surface of the output shaft 246 and the inner surface of the output shaft insertion hole 2134 when the output shaft 246 is inserted is sealed by the waterproof packing 25 . The waterproof gasket 25 is pressed by the gasket pressing plate 27 to seal the gap formed between the outer surface of the output shaft 246 and the inner surface of the output shaft insertion hole 2134 .

The gasket pressing plate 27 is fixed to the waterproof base 213 by the gasket pressing plate fastening screws 216 . Specifically, a gasket holder housing recess 2133 is formed on the lower side of the waterproof base 213, and the gasket holder 27 is fixed to the waterproof base with the gasket holder fastening screw 216 in a state stored in the gasket holder holder 2133. Block 213.

Further, a through hole 2135 penetrating in the vertical direction is formed in the waterproof base 213 , and the interlock detection switch cover 234 is inserted into the through hole 2135 .

Thus, in this embodiment, the main body part 20 is made into a waterproof structure, and entry of water into the cavity in the case 21 is suppressed.

[An example of 1st massage accessories]

Next, an example of the first massage attachment will be described using FIGS. 8 to 25 .

The first massage attachment 30 includes: a head 31 detachably attached to the main body 20; and a first massage section (massage section) 32 detachably attached to one end of the head 31. (lower end side).

The head 31 includes a head case 310 constituting the outline of the head 31 . The head case 310 can be formed using, for example, an insulating synthetic resin material.

In addition, the head housing 310 is formed by joining a plurality of divided bodies, and a cavity is formed inside the head housing 310 formed by joining the divided bodies. In addition, a first massaging attachment side deceleration mechanism 35 to be described later is housed in the cavity.

Specifically, the head case 310 includes: an accessory case 311 having a substantially quadrilateral shape when viewed from the rear and opening downward; and an accessory base 312 arranged to cover the opening of the accessory case 311 . The accessory base 312 is fixed to the accessory housing 311 by the accessory base fastening screws 3121 .

The accessory case 311 includes a peripheral wall 3111 and a top wall 3112 provided continuously from the upper end of the peripheral wall 3111 . The peripheral wall 3111 has a shape that gradually expands in diameter from the upper end side on the side attached to the main body 20 toward the lower end side. In addition, the top wall 3112 has a plate shape, and a flat top surface 3112 a extending in the horizontal direction of the top wall 3112 serves as an end surface on the side attached to the main body portion 20 . In addition, it is configured such that when the first massage accessory 30 is attached to the main body 20, the top surface 3112a is substantially the same plane as the lower surface (the end surface of the main body on which the first massage accessory is attached) 213. .

In this way, in the scalp care device 10, the shapes of the main body 20 and the first massage attachment 30 can be easily designed so that when the first massage attachment 30 is mounted on the main body 20, they can be smoothly continuous at the joint portion. .

In addition, in this embodiment, the junction part of the main-body part 20 and a massage attachment becomes a flat surface. In this way, the scalp care device 10 continues smoothly at the joint part, and the shape of other parts can be changed into various shapes more easily. That is, while improving the design of the scalp care device 10 having a structure in which a plurality of massage attachments can be exchanged, the degree of freedom in design of the main body 20 and the massage attachment can be improved.

Furthermore, by making the connection part of the main body part 20 and the 1st massage attachment 30 into a flat surface, an internal space can be easily sealed using an O-ring and a packing. In this embodiment, the main body part 20 of the scalp care device 10 has a waterproof structure. In this way, for example, the user can use the scalp care device 10 formed by attaching the first massage attachment 30 to the main body 20 to perform hair washing (washing of the scalp 1), massage of the scalp 1, etc. when taking a bath, etc. (scalp care).

Moreover, the through-hole 3112b which penetrates to the up-down direction is formed in the ceiling wall 3112, and the 1st massage attachment side drive transmission part 352 is inserted in this through-hole 3112b. When the first massage attachment 30 is viewed from above (when the head 31 is viewed from the upper side in the vertical direction), the first massage attachment side drive transmission part 352 is formed in a regular hexagonal (polygonal) space that opens upward. The regular hexagonal (polygonal) space is formed to have approximately the same size as the outer diameter of the main body side drive transmission portion 26 . And when the 1st massage attachment 30 is attached to the main body part 20, the main body side drive transmission part 26 is inserted in the space of this regular hexagonal shape (polygonal shape).

Moreover, the hook insertion recessed part 3112c in which the hook accommodating part 2132 and the hook 28 of the main body part 20 are inserted when the 1st massage attachment 30 is attached to the main body part 20 is formed in the top wall 3112. Furthermore, an engaging portion 3112d that engages with the hook 28 when the first massage attachment 30 is attached to the main body portion 20 is formed in the hook insertion recessed portion 3112c.

Furthermore, a through-hole 3112 e penetrating in the vertical direction is also formed in the top wall 3112 , and the interlock switch 341 is inserted into the through-hole 3112 e in a state biased upward by the biasing spring 342 . And, when the first massage attachment 30 is attached to the main body 20, the interlock switch 341 presses the interlock detection switch cover 234 upward. In this way, the interlock detection switch 233 detects the pressing of the interlock switch 341 (when the first massage attachment 30 is attached to the main body 20 ), and the motor 235 can be driven by operating the switch button 222 .

In addition, the first massaging accessory side deceleration mechanism 35 is arranged in the space in the accessory case 311 opened downward.

Thus, in this embodiment, in order to decelerate the operation|movement of an attachment (1st massage attachment 30), the following structures are provided. That is, a reduction gear (main body side reduction mechanism 24 ) is provided on the main body (main body portion 20 ), and a reduction gear (first massage attachment side reduction mechanism 35 ) is also provided on the attachment (first massage attachment 30 ).

The 1st massage accessory side speed reduction mechanism 35 is equipped with the relay gear 351 which rotates centering on the up-down direction, and the relay shaft 3511 to which the relay gear 351 is attached in the state extended in the up-down direction. In this embodiment, the first massage attachment side drive transmission part 352 is formed at the upper end part of the relay gear 351 , and the gear part 3521 is formed at the lower end part of the relay gear 351 . The first massaging accessory side drive transmission part 352 is integrally formed with the gear part 3521 .

In addition, the first massage accessory side reduction mechanism 35 includes: a drive transmission gear 353 that engages with the gear portion 3521 and rotates centering on the up-down direction; .

Moreover, the 1st massage attachment side reduction mechanism 35 is equipped with the four output gears 354 which rotate centering on the up-down direction. In this embodiment, among the four output gears 354, the two output gears 354 on the side close to the relay gear 351 mesh with the gear part 3521, and the two output gears 354 arranged at positions away from the relay gear 351 are in contact with the driving gear. The transfer gear 353 is engaged. In addition, the four output gears 354 are respectively supported by output gear bearings 3541 .

Furthermore, a rotating base 355 is fixed to each of the four output gears 354 . The rotating base 355 includes an output shaft 3551 protruding upward from the center of the disc portion, and an eccentric shaft 3552 protruding downward at a position eccentric to the center of the disc portion. In addition, a rotation base fastening screw 3553 is attached in a state where the output shaft 3551 is inserted into the through hole formed in the central portion of the output gear bearing 3541 and the output gear 354 . Thus, the output gear 354 and the rotation base 355 are attached with the output gear bearing 3541 interposed between the output gear 354 and the rotation base 355 .

In addition, in this embodiment, the accessory base 312 is interposed between the output gear bearing 3541 and the output gear 354 . Furthermore, by forming four through holes 312 a in the accessory base 312 , the rotating base 355 attached to the output gear 354 is exposed below the accessory base 312 in a rotatable state.

If such a 1st massage attachment side reduction mechanism 35 is provided, the four rotation bases 355 will operate as follows. Hereinafter, when the drive (rotation) of the motor 235 is transmitted, the case where the relay gear 351 rotates counterclockwise in the state shown in FIG. 14 will be described. When the relay gear 351 rotates in the reverse direction, the respective gears and the like also rotate in the opposite direction to that described below.

First, if the relay gear 351 rotates counterclockwise in the state shown in FIG. 14 , the drive transmission gear 353 and the two output gears 354 on the side closer to the relay gear 351 rotate clockwise. That is, the two rotating bases 355 on the side close to the relay gear 351 also rotate clockwise.

On the other hand, the two output gears 354 disposed away from the relay gear 351 , that is, the two rotating bases 355 disposed away from the relay gear 351 rotate counterclockwise.

At this time, the rotating base 355 rotates around the output shaft 3551 . Therefore, the eccentric shaft 3552 provided on the rotating base 355 also rotates on the circumference around the output shaft 3551 . That is, the eccentric shaft 3552 rotates along a plane (horizontal plane P4 ) perpendicular to the axial direction (vertical direction) of the output shaft 3551 .

And the 1st massage part 32 is detachably attached to the head part 31 which comprised such a structure.

The 1st massage part 32 is equipped with the rubber cover frame 322 attached to the head part 31 so that attachment and detachment are possible, and the rubber cover 321 attached to the rubber cover frame 322. As shown in FIG.

The rubber cover 321 can be formed of a flexible member such as an elastic body, for example, and is set to have substantially the same shape and the same size as the head portion 31 .

Further, a rubber cover frame 322 formed of a hard material that is harder than the rubber cover 321 formed of a flexible member is attached to the rubber cover 321 .

Specifically, an attachment protrusion 3222 protruding upward is provided at approximately the center of each side of the rubber cover frame 322 . Then, the rubber cover 321 is attached to the rubber cover frame 322 by fitting the mounting protrusion 3222 into the vertically penetrating mounting hole 3212 substantially at the center of each side of the outer peripheral portion of the rubber cover 321 . At this time, the protrusion 3211 formed at the center of the rubber cover 321 and protruding upward is inserted into the insertion rib 3221 formed at the center of the rubber cover holder 322 and protruding downward.

Thus, by attaching the rubber cover frame 322 with high rigidity to the rubber cover 321 which has flexibility, the 1st massage part 32 can be attached or detached easily with respect to the head part 31. As shown in FIG. In addition, the part of the rubber cover 321 where the rubber cover frame 322 is not installed becomes the following deformation part 3213 , and the massaging element base 323 is embedded in the following deformation part 3213 . In this embodiment, four circular holes are formed at symmetrical positions about the center of the rubber cover frame 322 , and the parts of the rubber cover 321 corresponding to the four circular holes serve as the following deformation portions 3213 . That is, in the present embodiment, four circular following deformation portions 3213 are formed on the rubber cover 321 .

In addition, the massaging element base 323 is formed of a resin or the like whose rigidity is higher than that of the rubber cover 321, and is a member that is not easily deformed. This massaging tool base 323 is provided with the base part 3231 attached to the eccentric shaft 3552 of the rotating base 355, and the core part 3232 provided so that it may protrude downward from the lower surface of the base part 3231. In this embodiment, four core material parts 3232 are provided on each massaging element base 323 .

Furthermore, an insertion hole 3231a is formed on the upper surface of the base portion 3231, and the massager base 323 is attached to the rotation base 355 by inserting the eccentric shaft 3552 of the rotation base 355 into the insertion hole 3231a. In this way, the following deformation part 3213 follows the movement of the massaging element base 323 and deforms.

However, as described above, in this embodiment, the eccentric shaft 3552 rotates on the circumference centered on the output shaft 3551 . That is, the eccentric shaft 3552 rotates along a plane (horizontal plane P4 ) perpendicular to the axial direction (vertical direction) of the output shaft 3551 .

Therefore, when the eccentric shafts 3552 rotate, the first massage elements (massage elements) 33 attached to the respective eccentric shafts 3552 also rotate on the circumference around the output shaft 3551 along with the rotation of the eccentric shafts 3552 .

Thus, in this embodiment, each 1st massaging element 33 performs rotational motion (circular motion) along the plane (horizontal plane P4) orthogonal to the axial direction (up-down direction) of the output shaft 3551. Therefore, the shape of the trajectory T1 drawn when the first massaging element 33 is operated becomes a circle centered on the output shaft 3551 (see FIG. 14 ). In addition, in this embodiment, the 1st massaging element 33 rotates, moving parallelly along the horizontal plane P4.

Among them, in this embodiment, the four rotating bases 355 are arranged so that the eccentric shafts 3552 provided on the rotating bases 355 adjacent to each other at relatively close positions (not diagonal positions) rotate with a phase difference of 180 degrees. In this way, the eccentric shafts 3552 provided on the rotation bases 355 adjacent to each other at a close position (not a diagonal position) are rotated closer to or farther away. Therefore, the first massaging elements 33 attached to the respective eccentric shafts 3552 are also rotated so as to approach or separate from the adjacent first massaging elements 33 .

Moreover, in this embodiment, each first massaging element 33 has two first massaging elements 33 that swirl so as to pass by when approaching, and two first massaging elements 33 that swirl so as to move in the same direction when approaching. Two first massaging pieces 33. In this way, in the scalp care device 10 , when the first massage member 33 is brought into contact with the scalp 1 , kneading and kneading of the scalp 1 can be performed.

In addition, in this embodiment, a plurality of (four) first massaging elements 33 are arranged as follows when viewed along the attaching/detaching direction (vertical direction) of the first massaging element 30 with respect to the main body 20 . That is, a plurality of (four) first massaging elements 33 are arranged such that the trajectory T1 drawn by each first massaging element 33 is axisymmetric with respect to a straight line (symmetry line C2 ) passing through the first massaging component side drive transmission part 352 .

Specifically, the four rotating bases 355 are arranged on the central axis C1 extending in the vertical direction of the first massage accessory 30 (first massage part 32 ) (the direction in which the first massage accessory 30 is attached to and attached to the main body 20 ). Symmetrical position.

Also, the four rotating bases 355 have the same shape. Therefore, the eccentric amounts of the eccentric shaft 3552 with respect to the output shaft 3551 are also the same. Therefore, the trajectory T1 drawn by each first massaging element 33 is mirror-symmetrical with respect to the plane P1 passing through the central axis C1, and the plane P1 passing through the central axis C1 is defined as a symmetry plane P2. And when viewed along the detachment direction (vertical direction) of the first massage attachment 30 with respect to the main body part 20, the symmetry plane P2 becomes a straight line passing through the central axis C1, and this straight line is called a symmetry line C2. Furthermore, the first massage accessory side drive transmission part 352 is arranged on the line of symmetry C2.

In this way, a plurality of (four) first massaging elements 33 are arranged such that the trajectory (circle) T1 described by each first massaging element 33 is about the straight line (symmetry line C2) passing through the first massaging accessory side drive transmission part 352. )Axisymmetric.

And, by setting it as such a structure, the structure of the 1st massage attachment side reduction mechanism 35 which transmits the drive of the motor (drive source) 235 to the some (four) 1st massaging elements 33 can be simplified. In this way, it is possible to reduce the size of the first massage attachment 30 .

Furthermore, in this embodiment, the first massaging element 33 is formed by fitting the massaging element base 323 into the following deformation part 3213 of the rubber cover 321 . That is, in the present embodiment, the first massaging element 33 is formed by assembling the rubber cover 321 to the massaging element base 323 which is a relatively high rigidity member. The rubber cover 321 is a member independent from the massaging element base 323 and It is a member with relatively low stiffness.

The first massaging member 33 includes: a base 331; and a massage protrusion 332 protruding downward from a top surface (lower surface) 331a of the base 331, and the massage protrusion 332 contacts the scalp 1 when the scalp care device 10 is used.

The base portion 331 is formed by covering the base portion 3231 of the massaging element base 323 with the rubber cover 321 . In addition, the massage protrusion 332 is formed by covering the core part 3232 of the massager base 323 with the rubber cover 321 , and the part of the rubber cover 321 covering the core part 3232 becomes the elastic part 32131 . Thus, in this embodiment, the massaging protrusion 332 has the core part 3232 and the elastic part 32131 which covers the core part 3232. Furthermore, the core part 3232 and the elastic part 32131 are formed by independent members.

Thus, in the present embodiment, the screw-operated attachment (first massage attachment 30 ) has a plurality of bristles (massage protrusions 332 ) that closely adhere to the scalp 1 and care for the scalp 1 . In addition, the bristles (massage protrusions 332) are formed separately using hard resin and flexible elastic material, and have a structure in which the hard resin is covered with the flexible elastic material and assembled.

In addition, in this embodiment, four massage protrusions 332 are respectively provided on the four first massaging elements 33 , and three protruding small protrusions 33222 are provided on the tip 3322 of each massage protrusion 332 .

Among them, in this embodiment, at least one first massaging element 33 has at least one inclined massaging protrusion 333 inclined relative to the axial direction of the output shaft 3551 so that the tip thereof faces the central axis C1 of the first massaging part 32 . Specifically, as shown in FIG. 21 and FIG. 22 , all four first massaging members 33 have at least one tilting massaging element that is tilted relative to the axial direction of the output shaft 3551 with the top end facing the central axis C1 of the first massaging part 32 . protrusion 333 .

In the present embodiment, all four massage protrusions 332 provided on the first massaging elements 33 are inclined with respect to the axial direction of the output shaft 3551 so that their tips are directed toward the central axis C1 of the first massaging part 32 . That is, all the four massage protrusions 332 included in each first massaging element 33 are inclined massage protrusions 333 inclined with respect to the axial direction of the output shaft 3551 so that their tips face the central axis C1 of the first massaging part 32 . In this way, the tips of all the massage protrusions 332 provided on the first massage member 30 are directed toward the central axis C1, and the tips of the massage protrusions 332 are easily attached to the scalp 1 . In this way, in this embodiment, the attachment (first massage attachment 30 ) that performs a spiral action has bristles (massage protrusions 332 ) that closely adhere to the scalp 1 and care for the scalp 1 at the tip of the attachment (first massage attachment 30 ). And this bristle (massage protrusion 332) is arrange|positioned so that it may incline to the apparatus center axis direction (central axis C1 of the 1st massage part 32).

And, if make such a structure, no matter which position of the first massaging element 33 is located in the rotational movement, the tip can be directed toward the central axis C1 of the first massaging part 32, and the massaging protrusion 332 can be aligned with the scalp 1 at a nearly perpendicular angle. touch. As a result, the tips of the massaging protrusions 332 can be brought into close contact with the scalp 1 more reliably, and the usability and effect can be provided to the scalp 1 more reliably.

In addition, the inclination angle of the surface (outer peripheral surface 3322b) located on the side opposite to the central axis C1 of the massaging protrusion 332 with respect to the axial direction of the output shaft 3551 is as follows. That is, the inclination angle of the outer peripheral surface 3322b is larger than that of the massaging protrusion 332 inclined relative to the axial direction of the output shaft 3551 so that the tip thereof faces the central axis C1 of the first massaging part 32 relative to the vertical direction (the axial direction of the output shaft 3551). The inclination angle θ is large.

In this embodiment, the inclination angle θ of the massaging protrusion 332 with respect to the vertical direction (the axial direction of the output shaft 3551 ) is approximately 9 degrees, and the inclination angle of the outer peripheral surface 3322 b with respect to the axial direction of the output shaft 3551 is approximately 10 degrees. In this way, the shape of the massaging protrusion 332 gradually becomes tapered from the base portion 3321 side toward the tip portion 3322 .

In this way, when the inclination angle of the outer peripheral surface 3322b is greater than the inclination angle θ of the massage protrusion 332, the mold structure can be simplified when forming the massage protrusion 332 using a mold. As a result, the formability of the massaging protrusion 332 can be improved and the cost can be reduced.

However, in this embodiment, the inclined massaging protrusion 333 has the inclined core part 3332 inclined with respect to the axial direction of the output shaft 3551 so that the tip thereof faces the central axis C1 of the first massaging part 32 .

In addition, the inclination angle of the surface (the outer peripheral surface 3332b of the inclined core part 3332 ) on the side opposite to the central axis C1 with respect to the axial direction of the output shaft 3551 is as follows. That is, the inclination angle of the outer peripheral surface 3332b of the inclined core material part 3332 is greater than the relative vertical direction ( The inclination angle θ of the axial direction of the output shaft 3551 is large. That is, the shape of the inclined core part 3332 becomes tapered gradually from the base part 3321 side toward the tip part 3322 .

In this way, it is possible to simplify the mold structure when forming the inclined core portion 3332 using a mold.

Such an inclined core portion 3332 can be formed, for example, using a mold 50 having an upper mold 51 and a lower mold 52 (see FIG. 23 ).

However, in this embodiment, as described above, the inclined core portion 3332 has a shape that gradually tapers from the base portion 3321 side toward the tip portion 3322 . Therefore, after molding the inclined core part 3332, the upper die 51 can be moved from the inclined core only by moving the upper die 51 upward (the ejection direction of the die 50: a direction perpendicular to the parting line PL of the die 50). The material part 3332 is ejected. In this manner, in the present embodiment, the upper die 51 can be configured without using tilt pins or slide mechanisms. In this way, at least the structure of the upper mold 51 can be simplified. As a result, the moldability of the inclined core portion 3332 can be improved and the cost can be reduced. In addition, FIG. 23 is a diagram for explaining a method of forming the core material portion 3232 (inclined core material portion 3332) of the massage protrusion 332 of the first massaging member 33 using the mold 50, and FIG. 23 shows the outline of the mold 50. .

In addition, in the present embodiment, the inclined massaging protrusion 333 has an inclined elastic portion 3331 inclined with respect to the axial direction of the output shaft 3551 so that the tip is directed toward the central axis C1 while covering the inclined core portion 3332 . In addition, in this embodiment, all the core parts 3232 constituting the massaging protrusion 332 correspond to the inclined core part 3332 , and all the elastic parts 32131 constituting the massaging protrusion 332 correspond to the inclined elastic part 3331 .

And, the inclined elastic part 3331 and the inclined core part 3332 are formed by independent members, and the inclined elastic part 3331 is configured to protrude along the protruding direction of the inclined core part 3332 by elastic deformation when covering the inclined core part 3332 (refer to Figure 22 and Figure 24).

Specifically, the protruding direction of the slanted elastic portion 3331 in a state where the slanted core portion 3332 is not covered is a direction different from the protruding direction of the slanted core portion 3332 . In this embodiment, the inclined elastic portion 3331 protrudes in the direction in which the massaging element base 323 moves (upward in FIG. 22 ) when the massaging element base 323 is attached to the rubber cover 321 without covering the inclined core portion 3332 . In addition, the direction in which the massaging element base 323 moves when the massaging element base 323 is attached to the rubber cover 321 substantially coincides with the axial direction of the output shaft 3551 in the state where the first massaging element 30 is assembled.

Therefore, when the massaging element base 323 is attached to the rubber cover 321 , the inclined elastic portion 3331 protruding in the axial direction of the output shaft 3551 elastically deforms so that the tip thereof faces the central axis C1 of the first massaging portion 32 . And, the inclined core part 3332 is covered in a state of being inclined along the protruding direction of the inclined core part 3332 .

In this way, it is possible to simplify the mold structure when forming the inclined elastic portion 3331 using a mold.

Such an inclined elastic portion 3331 can be formed, for example, using a mold 60 having an upper mold 61 and a lower mold 62 (see FIG. 25 ).

In the present embodiment, as described above, the inclined elastic portion 3331 protrudes upward in the state shown in FIG. 25 in a state (natural state) that does not cover the inclined core portion 3332 . Therefore, only by moving the upper die 61 upward and the lower die 62 downward after forming the inclined elastic portion 3331 , the upper die 61 and the lower die 62 can be ejected from the inclined elastic portion 3331 . Thus, in this embodiment, the protruding direction of the inclined elastic portion 3331 in the state (natural state) in which the inclined elastic portion 3331 does not cover the inclined core portion 3332 is the same as the ejection direction of the mold 60 (the direction perpendicular to the parting line PL of the mold 60 ). roughly the same. In this way, the mold 60 can be configured without using a tilt pin or a slide mechanism, and the structure of the mold 60 can be simplified. That is, the mold 60 for molding the inclined elastic portion 3331 can have a simple configuration. In this way, the formability of the inclined elastic portion 3331 can be improved and the cost can be reduced. Moreover, FIG. 25 is a figure for demonstrating the method of forming the elastic part 32131 of the massaging protrusion 332 which the 1st massaging material 33 has using the mold 60, FIG. 25 has shown the outline|summary of the mold 60. As shown in FIG.

In addition, as shown in FIG. 22 , a plurality of (four) massage protrusions 332 provided on one first massaging member 33 are provided in a state where the positions (height positions) of the base portion 3321 in the axial direction of the output shaft 3551 are different. The first massaging part 33 .

In this embodiment, as shown in FIG. 20, the height position of the base part 3321 of the some (four) massaging protrusion 332 differs by making the height position of the top surface (lower surface) 331a of the base part 331 different. And, the height position of the base portion 3321 of the plurality (four) of the massaging protrusions 332 is closer to the central axis C1 than to the main body portion 20 (lower side in FIG. 20 ) (stepped). In this way, the virtual curved surface formed by the tips of all the massage protrusions 332 provided on the first massage member 30 approaches the convex curved surface of the scalp 1 .

Moreover, in this embodiment, by changing the position of the base part 3321 in the axial direction of the output shaft 3551, the some massage protrusion 332 is arrange|positioned in a step shape. In this way, the protruding length of the massaging protrusions 332 is set to a length that can achieve both combability and strength of the hair, and a plurality of massaging protrusions 332 are arranged in steps. In this way, it is possible to suppress the contact between the massaging protrusions 332 and the scalp 1 from being blocked by the hair, and to prevent the massaging protrusions 332 from being damaged. Furthermore, if a plurality of massaging protrusions 332 are arranged in a stepped shape, all the massaging protrusions 332 can be easily brought into contact with the scalp 1 , so that the use feeling and effect can be provided to the scalp 1 more reliably.

Thus, in the present embodiment, the screw-operated attachment (first massage attachment 30 ) has a plurality of bristles (massage protrusions 332 ) that closely adhere to the scalp 1 and care for the scalp 1 . In addition, the position of the base portion 3321 of the bristles (massage protrusions 332 ) differs depending on the bristles (massage protrusions 332 ). In addition, the height of the bristles (massage protrusions 332) may vary depending on the bristles (massage protrusions 332).

Moreover, as shown in FIG. 26, the front-end|tip surface 3322a of the massaging protrusion 332 may be made into the surface inclined toward the central axis C1. That is, the tip surface 3322a of the massaging protrusion 332 may be an inclined surface or a curved surface inclined toward the central axis C1.

In this way, when the scalp care device 10 is used, even if the massaging protrusion 332 is deformed, the tip of the massaging protrusion 332 can be easily brought into contact with the scalp 1 (see FIGS. 50 and 51 ). That is, the scalp followability of the bristles (massage protrusions 332 ) can be improved by inclining or forming a curved surface toward the device central axis (central axis C1 ) with the tip surfaces 3322 a of the bristles (massage protrusions 332 ). In this way, if the scalp followability of the tips of the massaging protrusions 332 is improved, it is possible to more reliably provide a feeling of use and an effect to the scalp 1 .

Moreover, it is preferable that the attachment which performs a spiral operation (1st massage attachment 30 shown in FIG. 26) has a some bristle (massage protrusion 332) which adheres to the scalp 1 and cares the scalp 1. As shown in FIG.

In addition, as shown in FIG. 27 , the protruding small protrusion 33222 provided on the tip end portion 3322 of the massaging protrusion 332 may be inclined relative to the axial direction of the output shaft 3551 so that the tip is directed toward the central axis C1.

Also in this way, the scalp followability of the tips of the massaging protrusions 332 can be improved, so that the usability and effect can be more reliably provided to the scalp 1 .

In addition, the tip surface 3322a of the massaging protrusion 332 may be inclined, and the protruding small protrusion 33222 may also be inclined.

Next, an example of the usage method of the 1st massage attachment 30 which has such a structure is demonstrated.

First, the user attaches the first massage attachment 30 to the main body 20 and attaches the first massage attachment side drive transmission part 352 to the main body side drive transmission part 26 . Then, in this state, the user presses the switch button 222 to drive the motor 235 to rotate the main body side drive transmission part 26 .

Then, the rotation of the main body side drive transmission part 26 is transmitted to the 1st massage attachment side drive transmission part 352, and the 1st massage attachment side drive transmission part 352 rotates together with the main body side drive transmission part 26. At this time, the gear portion 3521 and the drive transmission gear 353 of the relay gear 351 attached to the first massage attachment side drive transmission portion 352 also rotate together with the first massage attachment side drive transmission portion 352 .

Then, by rotating the gear portion 3521 and the drive transmission gear 353 , the four output gears 354 are rotated in a decelerated state.

In this way, when the four output gears 354 rotate, the four rotating bases 355 respectively connected to the four output gears 354 also rotate.

At this time, the eccentric shaft 3552 provided on each rotating base 355 rotates along a plane (horizontal plane P4 ) perpendicular to the axial direction (vertical direction) of the output shaft 3551 .

Therefore, when the eccentric shafts 3552 rotate, the first massaging elements 33 attached to the respective eccentric shafts 3552 also rotate on the circumference around the output shaft 3551 along with the rotation of the eccentric shafts 3552 . Moreover, the massage protrusion 332 provided in each 1st massaging element 33 also rotates following rotation of the 1st massaging element 33. As shown in FIG. At this time, the massaging protrusion 332 rotates while moving in parallel along the horizontal plane P4.

And, in such a state, as long as the massaging protrusions 332 are brought into contact with the scalp 1, the massage protrusions 332 rotating can perform care (scalp care) such as washing and massaging of the scalp 1 .

[An example of 2nd massage accessories]

Next, an example of the second massage attachment will be described using FIGS. 28 to 52 .

The second massage attachment 40 includes: a head 41 detachably attached to the main body 20; and a second massage section (massage section) 42 detachably attached to one end of the head 41. (lower end side).

The head 41 includes a head case 410 constituting the outline of the head 41 . The head case 410 can be formed using, for example, an insulating synthetic resin material.

In addition, the head housing 410 is formed by joining a plurality of divided bodies, and a cavity is formed inside the head housing 410 formed by joining the divided bodies. In addition, a second massaging attachment side deceleration mechanism 45 to be described later is housed in the cavity.

Specifically, the head case 410 includes: an accessory case 411 having a substantially quadrilateral shape when viewed from the back and opening downward; and an accessory base 412 arranged to cover the opening of the accessory case 411 . The accessory base 412 is fixed to the accessory housing 411 by the accessory base fastening screws 4123 .

The accessory case 411 includes a peripheral wall 4111 and a top wall 4112 provided continuously from the upper end of the peripheral wall 4111 . The peripheral wall 4111 has a shape that gradually expands in diameter from the upper end side on the side attached to the main body 20 toward the lower end side. In addition, the top wall 4112 has a plate shape, and a flat top surface 4112 a extending in the horizontal direction of the top wall 4112 serves as an end surface attached to the main body portion 20 . In addition, it is configured such that when the second massage attachment 40 is attached to the main body 20, the top surface 4112a is substantially the same plane as the lower surface (the end face of the main body on which the second massage attachment is attached) 213a. .

In this way, in the scalp care device 10, the shapes of the main body 20 and the second massage attachment 40 can be easily designed so that when the second massage attachment 40 is attached to the main body 20, they can be smoothly continuous at the joint portion. .

In addition, in this embodiment, the junction part of the main-body part 20 and a massage attachment becomes a flat surface. In this way, the scalp care device 10 continues smoothly at the joint part, and the shape of other parts can be changed into various shapes more easily. That is, while improving the design of the scalp care device 10 having a structure in which a plurality of massage attachments can be exchanged, the degree of freedom in design of the main body 20 and the massage attachment can be improved.

Furthermore, by making the connection part of the main-body part 20 and the 2nd massage attachment 40 into a flat surface, an internal space can be easily sealed using an O-ring or a packing. In this embodiment, as mentioned above, the main-body part 20 of the scalp care apparatus 10 is made into a waterproof structure. In this way, for example, the user can use the scalp care device 10 formed by attaching the second massage attachment 40 to the main body 20 to perform hair washing (washing of the scalp 1), massage of the scalp 1, etc. while taking a bath, etc. (scalp care).

Moreover, the through-hole 4112b which penetrates to the up-down direction is formed in the ceiling wall 4112, and the 2nd massage attachment side drive transmission part 452 is inserted in this through-hole 4112b. When the second massage attachment 40 is planarly viewed (when the head 41 is viewed from the upper side in the vertical direction), the second massage attachment side drive transmission part 452 is formed in a regular hexagonal (polygonal) space that opens upward. The regular hexagonal (polygonal) space is formed to have approximately the same size as the outer diameter of the main body side drive transmission portion 26 . And when the 2nd massage attachment 40 is attached to the main body part 20, the main body side drive transmission part 26 is inserted in the space of this regular hexagonal shape (polygonal shape).

Moreover, the hook insertion recessed part 4112c in which the hook accommodating part 2132 and the hook 28 of the main body part 20 are inserted when the 2nd massage attachment 40 is attached to the main body part 20 is formed in the top wall 4112. Furthermore, an engaging portion 4112d that engages with the hook 28 when the second massage attachment 40 is attached to the main body portion 20 is formed in the hook insertion recessed portion 4112c.

Further, a through-hole 4112 e penetrating in the vertical direction is also formed in the top wall 4112 , and the interlock switch 441 is inserted into the through-hole 4112 e in a state biased upward by the biasing spring 442 . And when the 2nd massage attachment 40 is attached to the main body part 20, this interlock switch 441 presses the interlock detection switch cover 234 upward. In this way, the interlock detection switch 233 detects the pressing of the interlock switch 441 (when the second massage attachment 40 is attached to the main body 20 ), and the motor 235 can be driven by operating the switch button 222 .

In addition, a second massaging accessory side deceleration mechanism 45 is arranged in a space in the accessory case 411 opened downward.

Thus, in this embodiment, in order to decelerate the operation|movement of an attachment (2nd massage attachment 40), the following structures are provided. That is, a reduction gear (main body side reduction mechanism 24 ) is provided on the main body (main body portion 20 ), and a reduction gear (second massage attachment side reduction mechanism 45 ) is also provided on the attachment (second massage attachment 40 ).

The 2nd massage attachment side speed reduction mechanism 45 is equipped with the relay gear 451 which rotates centering on the up-down direction, and the relay shaft 4511 to which the relay gear 451 is attached in the state extended in the up-down direction. In this embodiment, the 2nd massage attachment side drive transmission part 452 is formed in the upper end part of the relay gear 451, and the gear part 4521 is formed in the lower end part of the relay gear 451. As shown in FIG. The second massaging accessory side drive transmission part 452 is integrally formed with the gear part 4521 .

In addition, the second massage accessory side deceleration mechanism 45 is provided with: a drive transmission gear 453 meshing with the gear part 4521 and rotating centering on the up-down direction; .

Moreover, the 2nd massage accessory side reduction mechanism 45 is equipped with the two output gears 454 meshed with the drive transmission gear 453, and the two output gears 454 are supported by the output gear bearing 4541, respectively.

However, in this embodiment, the rotation directions of the two output gears 454 are directions in which the lower side is inclined toward the central axis C1 with respect to the vertical direction. Thus, the output shaft 4551 mentioned later is inclined so that a front-end|tip may face the center axis C1 of the 2nd massage part 42. As shown in FIG.

Specifically, the drive transmission gear 453 includes: an upper gear 4531 extending in the horizontal direction and meshing with the gear portion 4521; engage. Then, the two output gears 454 are meshed with the lower gear 4532 so that the rotation direction of the two output gears 454 is inclined by about 15 degrees with respect to the vertical direction.

Furthermore, a rotating base 455 is fixed to each of the two output gears 454 . The rotating base 455 includes an output shaft 4551 protruding upward from the center of the disc portion, and an eccentric shaft 4552 protruding downward at a position eccentric to the center of the disc portion. Further, a rotation base fastening screw 4553 is attached in a state where the output shaft 4551 is inserted into the through hole formed in the center portion of the output gear bearing 4541 and the output gear 454 . Thus, the output gear 454 and the rotation base 455 are attached with the output gear bearing 4541 interposed between the output gear 454 and the rotation base 455 .

In addition, in this embodiment, the accessory base 412 is interposed between the output gear bearing 4541 and the output gear 454 .

Specifically, the accessory base 412 has a pair of swivel base mounting plates inclined at about 15 degrees with respect to the horizontal plane P4, and the swivel base receiving recesses 4121 are respectively formed on the swivel base mounting plates. In addition, a through hole 4121a is formed in the rotating base housing recess 4121, through which the output shaft 4551 is inserted. In this way, the rotating base 455 attached to the output gear 454 is rotatably housed in the rotating base housing recess 4121 and exposed below the accessory base 412 .

If such a second massage attachment side reduction mechanism 45 is provided, the two rotating bases 455 operate as follows. Hereinafter, a case where the relay gear 451 rotates counterclockwise in the state shown in FIG. 35 when the drive (rotation) of the motor 235 is transmitted will be described. When the relay gear 451 rotates in the reverse direction, the respective gears and the like also rotate in the opposite direction to that described below.

First, when the relay gear 451 rotates counterclockwise in the state shown in FIG. 35 , the drive transmission gear 453 rotates clockwise.

Then, when the drive transmission gear 453 rotates clockwise in the state shown in FIG. 35 , the two output gears 454 rotate counterclockwise. That is, the two rotating bases 455 rotate clockwise in the state shown in FIG. 36 .

At this time, the rotating base 455 rotates around the output shaft 4551 . Therefore, the eccentric shaft 4552 provided on the rotating base 455 also rotates on the circumference around the output shaft 4551 . That is, the eccentric shaft 4552 rotates along a plane P3 perpendicular to the axial direction of the output shaft 4551 .

Furthermore, in the present embodiment, the scalp care device 10 can convert the rotational motion of the eccentric shaft 4552 into a reciprocating linear motion.

Specifically, by providing the guide rail 46 and the slide base 47 movable along the rail portion 461 of the guide rail 46, the rotational motion of the eccentric shaft 4552 is converted into a reciprocating linear motion.

In this embodiment, two guide rails 46 are used for each rotating base 455 , and mounting ribs 462 are provided on each guide rail 46 . Then, the guide rail 46 is fixed to the accessory base 412 by inserting the guide rail fastening screw 4124 into the mounting rib 462 while the guide rail 46 is housed in the guide rail housing recess 4122 formed on the accessory base 412 . At this time, the two guide rails 46 are fixed to the accessory base 412 in a state where the openings of the rail portions 461 formed in the respective guide rails 46 face each other via the rotation base 455 .

In addition, the slide base 47 includes a substantially box-shaped body portion 471 and a pair of flange portions 472 provided continuously from the upper end of the body portion 471 . Furthermore, a pair of flange portions 472 are inserted into the rail portions 461 facing each other. In this way, the slide base 47 can be reciprocated and linearly moved along the rail portion 461 of the guide rail 46 . In addition, an eccentric shaft accommodating portion 4711 is formed in the main body portion 471 , and the eccentric shaft 4552 is accommodated in the eccentric shaft accommodating portion 4711 .

With such a configuration, when the eccentric shaft 4552 is rotated, the main body portion 471 is pressed by the eccentric shaft 4552 to perform reciprocating linear motion along the rail portion 461 .

And the 2nd massage part 42 is detachably attached to the head part 41 which comprised such a structure.

The 2nd massage part 42 is equipped with the rubber cover frame 422 attached to the head part 41 so that attachment and detachment are possible, and the rubber cover 421 attached to the rubber cover frame 422 .

The rubber cover 421 can be formed of a flexible member such as an elastic body, for example, and is set to have substantially the same shape and the same size as the head portion 41 .

Further, a rubber cover holder 422 formed of a hard material that is harder than the rubber cover 421 formed of a flexible member is attached to the rubber cover 421 .

Specifically, mounting protrusions 4224 protruding upward are provided along each side of the rubber cover frame 422 . Then, the rubber cover 421 is attached to the rubber cover frame 422 by fitting the mounting protrusions 4224 into the vertically penetrating mounting holes 4212 provided along each side of the outer peripheral portion of the rubber cover 421 . At this time, the protrusion 4211 formed on the rubber cover 421 and protruding upward is inserted into the insertion rib 4223 formed on the rubber cover frame 422 and protruding downward.

Thus, by attaching the rubber cover frame 422 with high rigidity to the rubber cover 421 which has flexibility, the 2nd massage part 42 can be attached or detached easily with respect to the head part 41. As shown in FIG. In addition, the part of the rubber cover 421 where the rubber cover frame 422 is not installed becomes the following deformation part 4213 , and the massaging element base 423 is embedded in the following deformation part 4213 . In the present embodiment, the rubber cover frame 422 includes a frame portion 4221 and a horizontal bar portion 4222 , and two square-shaped holes are formed at positions symmetrical about the center of the rubber cover frame 422 . In addition, portions corresponding to the two quadrangular holes in the rubber cover 421 serve as the following deformation portions 4213 . That is, in the present embodiment, two quadrilateral following deformation portions 4213 are formed on the rubber cover 421 .

In addition, the massaging element base 423 is formed of a resin or the like whose rigidity is higher than that of the rubber cover 421 , and is a member that is not easily deformed. This massaging tool base 423 is provided with the base part 4231 attached to the main-body part 471 of the slide base 47, and the core material part 4232 provided so that it may protrude downward from the lower surface of the base part 4231. In this embodiment, thirteen core material parts 4232 are provided on each massaging element base 423 .

Moreover, the base part 4231 is formed with the slide base storage part 4231a, and the massager base 423 is attached to the rotation base 455 by inserting the main body part 471 of the slide base 47 into this slide base storage part 4231a. In this way, the following deformation part 4213 follows the movement of the massaging element base 423 and deforms.

However, as described above, in this embodiment, the eccentric shaft 4552 rotates on the circumference centered on the output shaft 4551 . That is, the eccentric shaft 4552 rotates along a plane P3 perpendicular to the axial direction of the output shaft 4551 .

Then, this rotational motion is converted into a reciprocating linear motion by the guide rail 46 and the slide base 47 .

Therefore, when the eccentric shafts 4552 rotate, the second massaging elements (massaging elements) 43 mounted on the eccentric shafts 4552 reciprocate linearly along the plane P3 perpendicular to the axial direction of the output shaft 4551 along with the rotation of the eccentric shafts 4552. sports.

Thus, in this embodiment, each 2nd massaging element 43 performs reciprocating linear motion (reciprocating motion) along the plane P3 orthogonal to the axial direction of the output shaft 4551. As shown in FIG. Therefore, the shape of the trajectory T1 drawn when the second massaging element 43 is operated becomes a straight line (see FIG. 52 ).

Thus, in the present embodiment, the scalp care device 10 includes attachments (the first massage attachment 30 and the second massage attachment 40 ) having massage elements whose movements are different from each other.

Specifically, the shape (circumference) of the locus T1 drawn when the first massaging element 33 is operated (circular motion) is different from the shape (straight line) of the locus T1 drawn when the second massaging element 43 is operated (reciprocating motion). .

In addition, in this embodiment, at least one of the plurality of second massaging elements 43 is connected to an output shaft 4551 whose tip is inclined toward the central axis C1 of the second massaging part 42 .

In this way, in the scalp care device 10 , the second massaging element 43 can be easily attached to the convex curved surface of the scalp 1 .

However, in this embodiment, the eccentric shafts 4552 provided on the two rotating bases 455 are arranged to rotate with a phase difference of 180 degrees. In this way, the eccentric shaft 4552 provided on each rotating base 455 rotates so as to approach or move away from each other. Therefore, the second massaging elements 43 attached to the respective eccentric shafts 4552 via the sliding base 47 perform linear reciprocating motions to move toward or away from each other.

In addition, in the present embodiment, a plurality of (two) second massaging elements 43 are arranged as follows when viewed along the attaching/detaching direction (vertical direction) of the second massaging element 40 with respect to the main body 20 . That is, a plurality of (two) second massaging elements 43 are arranged such that the trajectory T1 drawn by each second massaging element 43 is axisymmetric with respect to a straight line (symmetry line C2 ) passing through the second massaging component side drive transmission part 452 .

Specifically, the two rotating bases 455 are arranged on the central axis C1 extending in the vertical direction of the second massage attachment 40 (second massage part 42) (the direction in which the second massage attachment 40 is attached to and attached to the main body 20). Symmetrical position. Therefore, a plurality of (two) 2nd massaging elements 43 are arrange|positioned at the mirror-symmetrical position with respect to the plane P1 which passes the central axis line C1 of the 2nd massaging part 42. As shown in FIG. In this way, the structure of the mechanism for transmitting the drive of the motor (drive source) 235 to the plurality of second massaging elements 43 can be simplified, and the size reduction of the scalp care device 10 can be achieved.

Also, the two rotating bases 455 have the same shape. Therefore, the eccentric amounts of the eccentric shaft 4552 with respect to the output shaft 4551 are also the same. Therefore, the trajectory T1 drawn by each second massaging element 43 is mirror-symmetrical with respect to the plane P1 passing through the central axis C1, and this plane P1 passing through the central axis C1 is defined as a symmetry plane P2. And when viewed along the detachment direction (vertical direction) of the second massaging attachment 40 with respect to the main body 20, the symmetry plane P2 is a straight line passing through the central axis C1, and this straight line is called a symmetry line C2. Furthermore, the second massage accessory side drive transmission part 452 is arranged on the symmetry line C2.

In this way, a plurality of (two) second massaging elements 43 are arranged such that the trajectory (straight line) T1 drawn by each second massaging element 43 is about the straight line (symmetry line C2) passing through the second massaging accessory side drive transmission part 452. Axisymmetric.

And, by setting it as such a structure, the structure of the 2nd massage attachment side reduction mechanism 45 which transmits the drive of the motor (drive source) 235 to the some (two) 2nd massaging elements 43 can be simplified. In this way, it is possible to reduce the size of the second massage attachment 40 .

In addition, in this embodiment, a plurality of (two) second massaging elements 43 operate in conjunction with each other as follows. That is, it operates in the following manner, when each second massaging element 43 reaches one end T1a of the drawn trajectory T1 and turns over when performing reciprocating motion, and the moment when it reaches the other end T1b and turns around, it passes through the center of the second massage part 42. The plane P1 of the axis C1 is linked mirror-symmetrically.

In this way, when the scalp care device 10 is used, the reaction forces received by the second massaging element 43 can be canceled out.

At this time, a plurality of (two) second massaging members 43 also operate in a mirror-symmetrical manner with respect to the plane P1 passing through the central axis C1 of the second massaging part 42 in the vector direction a at each point during the reciprocating motion. . Also, when the trajectory T1 drawn by the reciprocating motion is a curved line, the vector direction a becomes the tangential direction at each point.

In addition, a plurality of (two) second massaging elements 43 operate mirror-symmetrically in conjunction with directions of increasing and decreasing distances from the plane P1 passing through the central axis C1 of the second massaging part 42 .

In this way, in this embodiment, in the attachment (second massage attachment 40) that slides a plurality of (two) second massage elements 43, the slide that moves in the left-right direction in the state shown in FIG. The action becomes a mirror symmetrical movement.

Moreover, in this embodiment, the 2nd massaging element 43 is formed by fitting the massaging element base 423 in the following deformation part 4213 of the rubber cover 421 (refer FIG.40 and FIG.41). That is, in the present embodiment, the second massaging element 43 is formed by assembling the rubber cover 421 to the massaging element base 423 which is a member with relatively high rigidity. The rubber cover 421 is a member independent from the massaging element base 423 and It is a member with relatively low stiffness.

The second massager 43 includes a base 431 and a massage protrusion 432 protruding downward from a top surface (lower surface) 431 a of the base 431 , and the massage protrusion 432 is brought into contact with the scalp 1 when the scalp care device 10 is used.

The base portion 431 is formed by covering the base portion 4231 of the massaging element base 423 with the rubber cover 421 . In addition, the massage protrusion 432 is formed by covering the core part 4232 of the massager base 423 with the rubber cover 421 , and the part of the rubber cover 421 covering the core part 4232 becomes the elastic part 42131 . Thus, in this embodiment, the massaging protrusion 432 has the core part 4232 and the elastic part 42131 which covers the core part 4232. Furthermore, the core part 4232 and the elastic part 42131 are formed by independent members.

Thus, in this embodiment, the attachment (2nd massage attachment 40) which performs a sliding operation has a some bristle (massage protrusion 432) which adheres to the scalp 1 and cares the scalp 1. As shown in FIG. In addition, the bristles (massage protrusions 432) are formed separately using hard resin and flexible elastic material, and have a structure in which the hard resin is covered with the flexible elastic material and assembled.

In addition, in this embodiment, thirteen massage protrusions 432 are respectively provided on the two second massaging elements 43 , and three protruding small protrusions 4322c are provided on the tip end 4322 of each massage protrusion 432 .

Among them, in this embodiment, as shown in FIGS. 47 to 49 , at least one second massaging member 43 has an axis relative to the output shaft 4551 in such a way that the tip faces the plane P1 passing through the central axis C1 of the second massaging part 42 . At least one inclined massaging protrusion 433 is inclined. Specifically, as shown in FIG. 38 and FIG. 39 , the two second massaging elements 43 all have a direction inclined relative to the axial direction of the output shaft 4551 so that the top ends face the plane P1 passing through the central axis C1 of the second massaging part 42 . At least one inclined massaging protrusion 433 .

In this embodiment, among the thirteen massage protrusions 432 of each second massaging member 43, a part of the massage protrusions 432 on the side away from the plane P1 passing through the central axis C1 passes through the second massage part with the tip facing. The plane P1 of the central axis C1 of 42 is inclined relative to the axial direction of the output shaft 4551 . Specifically, five massage protrusions 432 of the seven massage protrusions 432 on the side away from the plane P1 passing through the central axis C1 face the plane P1 passing through the central axis C1 of the second massage part 42 relative to the output. The axial direction of the shaft 4551 is inclined.

In addition, in this embodiment, the five inclined massaging protrusions 433 inclined with respect to the axial direction of the output shaft 4551 so that their tips face the plane P1 passing through the central axis C1 of the second massaging part 42 serve as the first massaging protrusions 43A and the second massaging protrusions 43A. 2 massage protrusion 43B. Among these, the 1st massage protrusion 43A and the 2nd massage protrusion 43B are the massage protrusion 432 which has the core material part 4232 and the elastic part 42131 as mentioned later.

Moreover, in this embodiment, as mentioned above, the output shaft 4551 inclines so that a front-end|tip may face the plane P1 which passes the central axis line C1 of the 2nd massaging part 42. As shown in FIG. Therefore, the massaging protrusion 432 that is not inclined with respect to the axial direction of the output shaft 4551 is also inclined so that the tip thereof faces the plane P1 passing through the central axis C1 of the second massaging part 42 at approximately the same angle as the inclination angle of the output shaft 4551 . In this way, the tip of the massaging protrusion 432 that is not inclined relative to the axial direction of the output shaft 4551 also faces the plane P1 passing through the central axis C1.

Moreover, in this embodiment, the five massage protrusions 432 (inclined massage protrusions 433 ) located away from the side of the plane P1 passing through the central axis C1 are inclined as follows. That is, the five massage protrusions 432 (inclined massage protrusions 433 ) incline at an angle larger than the inclination angle of the output shaft 4551 (in a more laid-back state) so that their tips face the plane P1 passing through the central axis C1 of the second massaging part 42 .

In this way, the top ends of the five massage protrusions 432 (inclined massage protrusions 433 ) located away from the plane P1 passing through the central axis C1 can be more reliably brought into contact with the scalp 1 . Thus, in this embodiment, the tips of the massage protrusions 432 provided on the second massage accessory 40 face the plane P1 passing through the central axis C1 at a better angle, so that the tips of the massage protrusions 432 can be easily attached to the scalp 1 .

And, if make such a structure, then no matter which position the second massaging element 43 is in in the reciprocating linear motion, the tip can face the plane P1 passing through the central axis C1 of the second massaging part 42, and the massaging protrusion 432 can be made to be nearly vertical. The angle is in contact with scalp 1. As a result, the tips of the massaging protrusions 432 can be brought into close contact with the scalp 1 more reliably, and the usability and effect can be provided to the scalp 1 more reliably.

Moreover, the massaging protrusion 432 (inclined massaging protrusion 433) inclined with respect to the axial direction of the output shaft 4551 so that the tip may face the plane P1 passing through the central axis C1 of the second massaging part 42 is as follows. That is, the inclination angle of the surface (outer peripheral surface 4322b) of the inclined massaging protrusion 433 on the side opposite to the side of the plane P1 passing through the central axis C1 relative to the axial direction of the output shaft 4551 is larger than that of the massaging protrusion 432 itself relative to the output shaft. The axial inclination angle of 4551 is large.

In this embodiment, the inclination angle θ of the massaging protrusion 432 with respect to the vertical direction (the axial direction of the output shaft 4551 ) is approximately 8 degrees, and the inclination angle of the outer peripheral surface 4322 b with respect to the axial direction of the output shaft 4551 is approximately 9 degrees. In this way, the shape of the massaging protrusion 432 gradually becomes tapered from the base portion 4321 side toward the tip portion 4322 .

In this way, when the inclination angle of the outer peripheral surface 4322b is greater than the inclination angle θ of the massage protrusion 432, the mold structure can be simplified when forming the massage protrusion 432 using a mold. As a result, the formability of the massaging protrusion 432 can be improved and the cost can be reduced.

However, in this embodiment, the inclined massaging protrusion 433 has an inclined core part 4332 inclined with respect to the axial direction of the output shaft 4551 so that the tip thereof faces the plane P1 passing through the central axis C1 of the second massaging part 42 .

Furthermore, the inclination angle of the surface of the inclined core part 4332 on the side opposite to the side of the plane P1 passing through the central axis C1 (outer peripheral surface 4332b of the inclined core part 4332) with respect to the axial direction of the output shaft 4551 is as follows: As follows. That is, the inclination angle is greater than the inclination of the inclined core part 4332 relative to the axial direction of the output shaft 4551 so that the tip thereof faces the plane P1 passing through the central axis C1 of the second massaging part 42 . Great angle. That is, the shape of the inclined core part 4332 becomes gradually tapered from the base part 4321 side toward the tip part 4322 .

In this way, it is possible to simplify the mold structure when forming the inclined core portion 4332 using a mold.

Such an inclined core portion 4332 can be formed, for example, using a mold 70 having an upper mold 71 and a lower mold 72 (see FIG. 42 ).

However, in this embodiment, as described above, the inclined core portion 4332 has a shape that gradually tapers from the base portion 4321 side toward the tip portion 4322 . Therefore, after molding the inclined core part 4332, the upper die 71 can be moved from the inclined core only by moving the upper die 71 upward (the ejection direction of the die 70: a direction perpendicular to the parting line PL of the die 70). The material part 4332 is ejected. In this manner, in the present embodiment, the upper die 71 can be configured without using tilt pins or slide mechanisms. In this way, at least the structure of the upper mold 71 can be simplified. As a result, the moldability of the inclined core portion 4332 can be improved and the cost can be reduced. In addition, FIG. 42 is a diagram for explaining a method of forming the core material portion 4232 (inclined core material portion 4332) of the massage protrusion 432 of the second massaging member 43 using the mold 70, and FIG. 42 shows the outline of the mold 70. .

In addition, in the present embodiment, the inclined massaging protrusion 433 has an inclined elastic portion 4331 inclined with respect to the axial direction of the output shaft 4551 so that the tip thereof faces the plane P1 passing through the central axis C1 while covering the inclined core portion 4332 . . In addition, in this embodiment, the core part 4232 which comprises the inclined massage protrusion 433 corresponds to the inclined core part 4332, and the elastic part 42131 which comprises the inclined massage protrusion 433 corresponds to the inclined elastic part 4331.

And, the inclined elastic part 4331 and the inclined core part 4332 are formed by independent members, and the inclined elastic part 4331 is configured to protrude along the protruding direction of the inclined core part 4332 by elastic deformation when covering the inclined core part 4332 (refer to Figure 40 and Figure 41).

Specifically, the protruding direction of the slanted elastic portion 4331 in a state where the slanted core portion 4332 is not covered is a direction different from the protruding direction of the slanted core portion 4332 . In this embodiment, the inclined elastic portion 4331 protrudes in the direction in which the massaging element base 423 moves (upward in FIG. 43 ) when the massaging element base 423 is attached to the rubber cover 421 without covering the inclined core portion 4332 . In addition, the direction in which the massaging element base 423 moves when the massaging element base 423 is attached to the rubber cover 421 substantially coincides with the axial direction of the output shaft 4551 in the state where the second massaging element 40 is assembled.

Therefore, when the massaging element base 423 is attached to the rubber cover 421 , the inclined elastic portion 4331 protruding in the axial direction of the output shaft 4551 elastically deforms so that the tip thereof faces the plane P1 passing through the central axis C1 of the second massaging portion 42 . And, the inclined core part 4332 is covered in a state of being inclined along the protruding direction of the inclined core part 4332 .

In this way, it is possible to simplify the mold structure when forming the inclined elastic portion 4331 using a mold.

Such an inclined elastic portion 4331 can be formed, for example, using a mold 80 having an upper mold 81 and a lower mold 82 (see FIG. 43 ).

In the present embodiment, as described above, the inclined elastic portion 4331 protrudes upward in the state shown in FIG. 43 in a state (natural state) that does not cover the inclined core portion 4332 . Therefore, after the inclined elastic portion 4331 is formed, the upper die 81 and the lower die 82 can be ejected from the inclined elastic portion 4331 only by moving the upper die 81 upward and the lower die 82 downward. Thus, in this embodiment, the protruding direction of the inclined elastic portion 4331 in the state (natural state) in which the inclined elastic portion 4331 does not cover the inclined core portion 4332 is the same as the ejection direction of the mold 80 (the direction perpendicular to the parting line PL of the mold 80 ). roughly the same. In this way, the mold 80 can be configured without using a tilt pin or a slide mechanism, and the structure of the mold 80 can be simplified. That is, the mold 80 for molding the inclined elastic portion 4331 can have a simple structure. In this way, the moldability of the inclined elastic portion 4331 can be improved and the cost can be reduced. Moreover, FIG. 43 is a figure for demonstrating the method of forming the elastic part 42131 of the massaging protrusion 432 which the 2nd massaging element 43 has using the mold 80, FIG. 43 has shown the outline|summary of the mold 80.

Moreover, you may make the front-end|tip surface 4322a of the massaging protrusion 432 the surface inclined toward the plane P1 which passes through the central axis C1. That is, the tip surface 4322a of the massaging protrusion 432 may be an inclined surface or a curved surface inclined toward the plane P1 passing through the central axis C1.

When the tip surface 4322a of the massage protrusion 432 is not inclined, as shown in FIG. Moreover, if the corner of the top end surface 4322a touches the scalp 1, the massage protrusion 432 and the small protrusion 4322c cannot contact the scalp 1 at an appropriate angle, and the intended use feeling and effect cannot be obtained.

On the other hand, if the top end surface 4322a of the massage protrusion 432 is inclined, as shown in FIG. 4322c abuts against the scalp 1 at an appropriate angle. In this way, if the front end surface 4322a of the massage protrusion 432 is an inclined surface or a curved surface inclined toward the plane P1 passing through the central axis C1, even if the massage protrusion 432 is deformed when the scalp care device 10 is used, the massage protrusion 432 can be easily deformed. The top abuts against the scalp 1 . That is, in the sliding attachment (second massage attachment 40), the tip surface 4322a of the bristle (massage protrusion 432) is inclined or curved toward the plane P1 passing through the center axis (center axis C1) of the device. Thereby, the attachment (second massage attachment 40) which performs a sliding operation can also improve the scalp followability of the bristle (massage protrusion 432). Furthermore, if the scalp followability of the tips of the massaging protrusions 332 is improved, the scalp followability of the tips of the massage protrusions 432 can be improved, and the usability and effect can be provided to the scalp 1 more reliably.

In addition, the scalp followability of the bristles (massage protrusions 332 ) can also be improved by inclining or forming a curved surface toward the device central axis (central axis C1 ) with the tip surface 4322 a of the bristles (massage protrusions 332 ). Moreover, when it is set as such a structure, it is preferable to have a some bristle (massage protrusion 332) which adheres to the scalp 1 and cares the scalp 1.

In addition, the protruding small protrusion 4322c provided on the tip end portion 4322 of the massaging protrusion 432 may be inclined relative to the axial direction of the output shaft 4551 so that the tip thereof faces the plane P1 passing through the central axis C1.

Also in this way, the scalp followability of the tips of the massaging protrusions 432 can be improved, so that the usability and effect can be provided to the scalp 1 more reliably.

In addition, the tip surface 4322a of the massaging protrusion 432 may be inclined, and the protruding small protrusion 4322c may also be inclined.

In addition, in this embodiment, a plurality of massage protrusions 432 are provided on each second massaging element 43 . Furthermore, the massaging protrusions 432 include the first massaging protrusions 43A and the second massaging protrusions 43B whose rigidity is lower than that of the first massaging protrusions 43A. In the present embodiment, the rigidity of the first massaging protrusion 43A and the rigidity of the second massaging protrusion 43B are different by varying the amount of the core material portion 4232 present inside.

In addition, at least one first massage protrusion 43A exists in a region of the plurality of second massaging elements 43 away from the central axis C1 of the second massage part 42, and at least one second massage protrusion 43B exists near the second massage part. 42 on the side of the central axis C1.

Moreover, in this embodiment, the number of 1st massage protrusion 43A is large in the area|region of the side far from the center axis line C1 of the 2nd massage part 42. As shown in FIG. Moreover, the number of 2nd massaging protrusions 43B is large in the area close to the center axis C1 side of the 2nd massaging part 42. As shown in FIG. Thus, in the present embodiment, the ratio of the first massaging protrusions 43A is higher in the region farther from the central axis C1 of the second massaging part 42 than in the region closer to the central axis C1 of the second massaging part 42 . .

In this case, a structure can be adopted in which a large number of relatively soft second massage protrusions 43B are present on the side closer to the central axis C1 of the second massage portion 42, and a large number of relatively hard first massage protrusions 43A are present on a side closer to the central axis C1 of the second massage portion 42. remote location. In this way, if a large number of relatively hard first massage protrusions 43A exist at positions away from the central axis C1 of the second massage portion 42, the massage protrusions on the outside (first massage protrusions 43A) can be made larger than the massage protrusions on the inside (first massage protrusions 43A). The 2 massaging protrusions 43B) come into strong contact with each other. As a result, the feeling of massage can be easily obtained in a larger area, and the usability of the scalp care device 10 can be improved.

In this way, in this embodiment, in the attachment (second massage attachment 40) that slides, the tip of the attachment (second massage attachment 40) has a plurality of bristles that are in close contact with the scalp 1 to care for the scalp 1 (massage). protrusion 432). In addition, among the plurality of bristles (massaging protrusions 432 ), the bristles (massaging protrusions 432 ) arranged on the outer peripheral side of the device have higher rigidity than the inner bristles (massaging protrusions 432 ).

In addition, in the present embodiment, each second massaging element 43 is provided with auxiliary massaging protrusions 43C in which no core material portion 4232 exists, in addition to first massaging protrusions 43A and second massaging protrusions 43B.

Moreover, in this embodiment, the front-end|tip part 4322 of the massage protrusion 432 is made into the shape tapered toward the plane P1 which passes the central axis C1 of the 2nd massage part 42. As shown in FIG. Specifically, the tapered portion 43221 is formed by chamfering the C surface inside the tip portion 4322 of the massaging protrusion 432 .

In this way, combability of the hair can be ensured, and the contact of the massaging protrusion 432 with the scalp 1 can be prevented from being hindered by the hair.

Moreover, the attachment (2nd massage attachment 40) which performs a sliding operation has a some bristle (massage protrusion 432) which adheres to the scalp 1 and cares the scalp 1. As shown in FIG. In addition, the position of the base portion 4321 of the bristles (massage protrusions 432 ) may vary depending on the bristles (massage protrusions 432 ). In addition, the height of the bristles (massage protrusions 432) may vary depending on the bristles (massage protrusions 432).

Next, an example of the usage method of the 2nd massage attachment 40 which has such a structure is demonstrated.

First, the user attaches the second massage attachment 40 to the main body 20 and attaches the second massage attachment side drive transmission part 452 to the main body side drive transmission part 26 . Then, in this state, the user presses the switch button 222 to drive the motor 235 to rotate the main body side drive transmission part 26 .

Then, the rotation of the main body side drive transmission part 26 is transmitted to the 2nd massage attachment side drive transmission part 452, and the 2nd massage attachment side drive transmission part 452 rotates together with the main body side drive transmission part 26. At this time, the gear portion 4521 and the drive transmission gear 453 of the relay gear 451 attached to the second massage attachment side drive transmission portion 452 also rotate together with the second massage attachment side drive transmission portion 452 .

Then, by rotating the gear portion 4521 and the drive transmission gear 453 , the two output gears 454 are rotated in a decelerated state.

In this way, when the two output gears 454 rotate, the two rotating bases 455 respectively connected to the two output gears 454 also rotate.

At this time, the eccentric shaft 4552 provided on each rotating base 455 rotates along a plane P3 perpendicular to the axial direction of the output shaft 4551 .

And when the eccentric shaft 4552 rotates, the slide base 47 and the 2nd massaging element 43 attached to each eccentric shaft 4552 perform linear reciprocating motion along with the rotation of the eccentric shaft 4552. At this time, the massaging protrusions 432 provided on the respective second massaging elements 43 also perform reciprocating linear motion following the reciprocating linear motion of the second massaging elements 43 .

Then, in such a state, if the massage protrusion 432 is brought into contact with the scalp 1, the massage protrusion 432 which reciprocates and rectilinearly moves can perform care (scalp care) such as washing and massaging the scalp 1 .

At this time, the output shaft 4551 inclines so that the front end may face the central axis C1 of the second massaging part 42 . Therefore, the drive plane (plane P3 perpendicular to the axial direction of the output shaft 4551 ) on which the second massaging member 43 functioning as a brush performs linear reciprocating motion is inclined at a predetermined angle (about 15 degrees) relative to the horizontal plane P4. In this way, in the scalp care device 10 , the second massaging element 43 can be easily attached to the scalp 1 .

In this way, in the second massage attachment (an attachment that performs a sliding action) 40 of the present embodiment, the drive plane (the plane P3 perpendicular to the axial direction of the output shaft 4551) of the brush (the second massage element 43) is set to I incline it so that it becomes the angle that is easy to touch scalp 1.

Moreover, the shape of the trajectory T1 drawn by the 2nd massaging element 43 which reciprocates along the plane P3 orthogonal to the axial direction of the output shaft 4551 can be made into various shapes.

For example, the 2nd massaging element 43 which draws the trajectory T1 shown in FIGS. 53-60 can be provided. At this time, it is preferable to move the second massaging element 43 so as to be symmetrical with respect to the timing of folding back.

FIG. 53 exemplifies a case where one second massaging element 43 reciprocates linearly and the other second massaging element 43 reciprocates in an arc shape.

In FIG. 54 , the case where the two second massaging elements 43 reciprocate in an arc shape is illustrated. The two arc-shaped trajectories T1 have the same size.

The number of the plurality of second massaging elements 43 is not limited to two. In FIG. 55 , as an example of the plurality of second massaging elements 43 , a case where four second massaging elements 43 reciprocate is illustrated. Specifically, a case where two second massaging elements 43 reciprocate linearly and the remaining two second massaging elements 43 reciprocate in an arc shape is exemplified. Among them, the lengths of the two linear trajectories T1 are different, and the sizes of the two arc-shaped trajectories T1 are different.

In FIG. 56, the case where two 2nd massaging elements 43 reciprocate in circular arc shape is illustrated. These two arc-shaped trajectories T1 have different sizes.

FIG. 57 exemplifies the case where four second massaging elements 43 perform radial reciprocating linear motion. Among them, the lengths of the four linear trajectories T1 are different from each other.

FIG. 58 exemplifies a case where one second massaging element 43 reciprocates in a curved shape without turning around halfway, and the other second massaging element 43 reciprocates in a curved shape turning around halfway.

In FIG. 59, the case where the five 2nd massaging elements 43 respectively perform reciprocating linear motion along the side of a pentagon is shown as an example.

In FIG. 60 , the case where two second massaging elements 43 perform reciprocating linear motion and the remaining two second massaging elements 43 perform rotational movement is illustrated. Among them, the two linear trajectories T1 have the same length, and the two circular trajectories T1 have the same size.

[Effect]

Hereinafter, the characteristic structure of the scalp care device 10 shown in the said embodiment and its modification, and the effect obtained by it are demonstrated.

(1) The scalp care device 10 shown in the said embodiment and its modification is equipped with the main-body part 20 which accommodated the motor (drive source) 235 which drives the output shaft 4551. In addition, the scalp care device 10 is provided with a second massage unit (massage unit) 42 that is driven by the output shaft 4551 and moves along a plane P3 perpendicular to the axial direction of the output shaft 4551. A plurality of second massage elements (massage elements) 43 that reciprocate.

Thus, when the some 2nd massaging element 43 reciprocates along the plane P3 orthogonal to the axial direction of the output shaft 4551, the 2nd massaging element 43 can be brought into contact with the scalp 1 more reliably.

(2) In addition, it is also possible that when the plurality of second massaging elements 43 reach one end T1a of the trajectory T1 drawn by each second massaging element 43 during reciprocating motion and turn around, and when they reach the other end T1b and turn around It interlocks with respect to the plane P1 which passes the central axis C1 of the 2nd massaging part 42, and is mirror-symmetrical.

In this way, when the scalp care device 10 is used, the reaction forces received by the second massaging element 43 can be mutually canceled, so that more effective massage can be performed.

(3) In addition, the plurality of second massaging members 43 may be linked so that the vector direction a at each point during reciprocating motion is mirror-symmetrical with respect to the plane P1 passing through the central axis C1 of the second massaging part 42 .

In this way, when the scalp care device 10 is used, the reaction forces received by the second massaging element 43 can be mutually canceled, so that more effective massage can be performed.

(4) In addition, the plurality of second massaging elements 43 may be mirror-symmetrically interlocked in a direction in which the distance between the plane P1 passing through the central axis C1 of the second massaging part 42 increases and decreases.

In this way, when the scalp care device 10 is used, the reaction forces received by the second massaging element 43 can be mutually canceled, so that more effective massage can be performed.

(5) In addition, the some 2nd massaging element 43 may be arrange|positioned at the mirror-symmetrical position with respect to the plane P1 which passes the center axis line C1 of the 2nd massaging part 42. As shown in FIG.

In this way, the structure of the mechanism which transmits the drive of the motor (drive source) 235 to the some 2nd massage element 43 can be simplified. As a result, downsizing of the scalp care device 10 can be achieved.

(6) In addition, the plurality of second massaging elements 43 may perform linear reciprocating motion along a plane P3 perpendicular to the axial direction of the output shaft 4551 .

In this way, the structure can be simplified, and the second massage member 43 can be brought into contact with the scalp 1 more reliably.

(7) In addition, at least one of the plurality of second massaging elements 43 may be connected to the output shaft 4551 whose tip is inclined toward the central axis C1 of the second massaging part 42 .

In this way, since the second massaging member 43 can be easily attached to the convex curved surface of the scalp 1, more effective massage can be performed.

(8) In addition, a plurality of second massaging elements 43 may have a plurality of massaging protrusions 432 . Furthermore, the plurality of massaging protrusions 432 may include the first massaging protrusions 43A and the second massaging protrusions 43B whose rigidity is lower than that of the first massaging protrusions 43A. In addition, at least one first massage protrusion 43A may be present in a region of the plurality of second massaging elements 43 on the side away from the central axis C1 of the second massaging part 42, and at least one second massage protrusion 43B may be present in a region close to the central axis C1 of the second massage part 42. The area on the side of the central axis C1 of the second massaging part 42 .

In this case, a relatively soft second massaging protrusion 43B is present on the side closer to the central axis C1 of the second massaging portion 42, and a relatively hard first massaging protrusion 43A is present at a farther position. In this way, if the relatively hard first massage protrusions 43A exist at a position away from the central axis C1 of the second massage portion 42, the massage protrusions on the outside (the first massage protrusions 43A) can be compared with the massage protrusions on the inside (the second massage protrusions 43A). 43B) Forcefully abut. As a result, the feeling of massage can be easily obtained in a larger area, and the usability of the scalp care device 10 can be improved.

(9) In addition, the tip end portion 4322 of at least one of the plurality of massage protrusions 432 may be tapered toward the plane P1 passing the central axis C1 of the second massage portion 42 .

In this way, combability of the hair can be ensured, and the contact of the massaging protrusion 432 with the scalp 1 can be prevented from being hindered by the hair.

(10) Moreover, the front-end|tip surface 4322a of at least one massage protrusion 432 among the several massage protrusions 432 may be the surface inclined toward the plane P1 which passes the center axis line C1 of the 2nd massage part 42. As shown in FIG.

In this way, even if the massaging protrusion 432 is deformed when the scalp care device 10 is used, the tip of the massaging protrusion 432 can be easily brought into contact with the scalp 1 . As a result, the scalp followability of the tips of the massaging protrusions 432 can be improved, and the usability and effect can be provided to the scalp 1 more reliably.

(11) In addition, the protrusion small protrusion 4322c may be provided in the front-end|tip part 4322 of at least one massaging protrusion 432 among several massaging protrusions 432. As shown in FIG. In addition, the protruding small protrusion 4322c may be inclined with respect to the axial direction of the output shaft 4551 so that the tip thereof faces the plane P1 passing through the central axis C1 of the second massaging part 42 .

Also in this way, the scalp followability of the tips of the massaging protrusions 432 can be improved, so that the usability and effect can be more reliably provided to the scalp 1 .

(12) In addition, at least one massaging protrusion 432 among the plurality of massaging protrusions 432 may be as follows. That is, the inclination angle of the surface (outer peripheral surface 4322b) of the massaging protrusion 432 on the side opposite to the plane P1 passing through the central axis C1 of the second massaging part 42 with respect to the axial direction of the output shaft 4551 is larger than that of the massaging protrusion 432. The inclination angle of 432 with respect to the axial direction of the output shaft 4551 is large.

Thus, if the inclination angle of the outer peripheral surface 4322b is made larger than the inclination angle of the massage protrusion 432, when forming the massage protrusion 432 using a mold, the mold structure can be simplified. As a result, the formability of the massaging protrusion 432 can be improved and the cost can be reduced.

(13) Moreover, each of the some massage protrusion 432 may have the core part 4232 and the elastic part 42131 which covers the core part 4232. In addition, the core part 4232 and the elastic part 42131 may be formed by independent members. Moreover, the core part 4232 may have the inclination core part 4332 inclined with respect to the axial direction of the output shaft 4551 so that the front-end|tip may face the plane P1 which passes the central axis C1 of the 2nd massaging part 42. In addition, the elastic portion 42131 may have an inclination relative to the axial direction of the output shaft 4551 so that the tip thereof faces the plane P1 passing through the central axis C1 of the second massaging portion 42 while covering the inclined core portion 4332 . Elastic part 4331. Furthermore, the inclined elastic portion 4331 may be configured to protrude along the protruding direction of the inclined core portion 4332 by elastically deforming when covering the inclined core portion 4332 .

In this way, even when the inclined elastic portion 4331 is provided, the mold for molding the elastic portion 42131 can have a simple structure. Therefore, the formability of the elastic portion 42131 can be improved and the cost can be reduced.

[other]

As mentioned above, although the content of the scalp care device of this invention was demonstrated, it is self-evident for those skilled in the art that various deformation|transformation and improvement are possible without being limited to these descriptions.

For example, it can be set as the scalp care device which combined suitably the structure shown by the said embodiment and its modification.

In addition, in the above-mentioned embodiment and its modified example, the example in which various massage accessories are attached to one kind of main body part 20 was illustrated, and it is also possible to use a variety of massage accessories with different performances such as rotating motors and capacities of rechargeable batteries. main body. That is, the scalp care device 10 may include multiple types of main body units having a common main body side drive transmission unit.

In addition, in the scalp care device 10 shown in the above-mentioned embodiment and its modifications, the second massaging element 43 having the second massaging element 43 reciprocating along the plane P3 perpendicular to the axial direction of the output shaft 4551 was described. A case where the massage attachment 40 is detachably attached to the main body 20 . However, the structure of the scalp care device 10 is not limited to such a structure, For example, only the massage part can be made into the scalp care device which can be attached or detached. Moreover, it can also be set as the scalp care apparatus which integrated the main body part and the massage part (the massage part cannot be detached from the main body part).

In addition, in the above-mentioned embodiment and its modifications, the second massaging member 43 has been illustrated as having an inclined massaging mechanism in which the tip is inclined relative to the axial direction of the output shaft 4551 so that the tip faces the plane P1 passing through the central axis C1 of the second massaging part 42 . The structure of the protrusion 433 is not limited to such a structure. For example, the second massaging element 43 may have a configuration in which the inclined massaging protrusion 433 is inclined with respect to the axial direction of the output shaft 4551 so that the tip thereof faces the central axis C1 of the second massaging part 42 .

In addition, specifications (shape, size, layout, etc.) of the massaging element, massaging protrusions, and other details can also be appropriately changed.

Industrial availability

As described above, the scalp care device of the present invention can more reliably bring the massager into contact with the scalp, and thus can be applied to various scalp care devices including home use and business use.

Claims (13)

1. A scalp care device comprising: a main body housing a drive source for driving the output shaft; and The massaging part has a plurality of massaging elements that reciprocate along a plane perpendicular to the axial direction of the output shaft driven by the output shaft. 2. The scalp care device of claim 1, wherein: When the plurality of massaging elements reach one end of the trajectory drawn by each massaging element during reciprocating motion and turn over, and when reaching the other end and turn over, the massaging elements are mirror-symmetrical with respect to a plane passing through the central axis of the massaging part. linkage. 3. The scalp care device according to claim 1 or 2, wherein: The plurality of massaging elements are linked in such a way that the vector directions at each point during the reciprocating motion are mirror-symmetrical to a plane passing through the central axis of the massaging part. 4. The scalp care device according to any one of claims 1 to 3, wherein: The plurality of massaging elements are linked in a mirror-symmetrical manner to a direction in which the distance between the planes passing through the central axis of the massaging part increases and decreases. 5. The scalp care device according to any one of claims 1 to 3, wherein: The plurality of massaging elements are arranged at mirror-symmetrical positions with respect to a plane passing through the central axis of the massaging part. 6. The scalp care device according to any one of claims 1 to 5, wherein: The plurality of massaging elements perform reciprocating linear motion along a plane perpendicular to the axial direction of the output shaft. 7. The scalp care device according to any one of claims 1 to 6, wherein: At least any one of the plurality of massaging elements is connected to the output shaft whose top end is inclined toward the central axis of the massaging part. 8. The scalp care device according to any one of claims 1 to 7, wherein: The plurality of massaging parts have a plurality of massage protrusions, The plurality of massage protrusions include first massage protrusions and second massage protrusions whose rigidity is lower than that of the first massage protrusions, At least one of the first massage protrusions is present in a region of the plurality of massaging elements away from the central axis of the massage part, and at least one of the second massage protrusions is present near the central axis of the massage part area on that side. 9. The scalp care device of claim 8, wherein: At least one of the massaging protrusions has a tip end that tapers toward a plane passing through the central axis of the massaging portion. 10. A scalp care device according to claim 8 or 9, wherein: At least one of the massaging protrusions has a front end surface inclined toward a plane passing through a central axis of the massaging portion. 11. The scalp care device according to any one of claims 8 to 10, wherein: A small protruding protrusion is provided on the top end of at least any one of the plurality of massage protrusions, The protruding small protrusions are inclined with respect to the axial direction of the output shaft in such a manner that the top ends thereof face a plane passing through the central axis of the massage part. 12. The scalp care device according to any one of claims 8 to 11, wherein: For at least any one of the plurality of massage protrusions, the inclination of the surface on the side opposite to the side where the plane passing through the central axis of the massage part is located relative to the axial direction of the output shaft The angle is larger than the inclination angle of the massage protrusion relative to the axial direction of the output shaft. 13. The scalp care device according to any one of claims 8 to 12, wherein: The plurality of massage protrusions respectively have a core material part and an elastic part covering the core material part, the core part and the elastic part are formed of separate members, The core part has an inclined core part inclined relative to the axial direction of the output shaft so that the top end faces a plane passing through the central axis of the massage part, and the elastic part has an inclined core part covering the inclined core part. In the state of the massage part, the inclined elastic part is inclined relative to the axial direction of the output shaft with the top end facing the plane passing through the central axis of the massage part, The inclined elastic portion is configured to protrude along the protruding direction of the inclined core portion by elastic deformation while covering the inclined core portion.

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