KR102032527B1 - Vibrating toothbrush - Google Patents

Abstract

The present invention includes a toothbrush head having an insertion groove formed therein and a locking protrusion formed to protrude from a side surface of the insertion groove; And a connection member having a connection member body, a first insertion portion protruding from one side in the longitudinal direction of the connection member body, the first insertion portion coupled to the insertion groove, and a coupling protrusion protruding on an outer circumferential surface of the first insertion portion. . As a result, the possibility of fatigue failure due to a force on the outside acting in the radial direction can be significantly reduced.

Description

Vibrating Toothbrush

The present invention relates to a vibrating toothbrush, and more particularly, to a vibrating toothbrush comprising a connection member which connects the toothbrush head and the vibrating toothbrush body, and at the same time, transmits vibrations formed in the vibrating toothbrush body to the toothbrush head, thereby securing a coupling. will be.

In general, the vibrating toothbrush is a mechanism for cleaning teeth by vibrating the bristles received the vibration force as the vibration motor provided therein vibrates. The vibrating toothbrush is composed of a toothbrush head portion in which bristles are planted, and a toothbrush body that can be gripped by the user, and the toothbrush body is equipped with a vibration motor and a battery. That is, in the case of a vibrating toothbrush having the above structure, an accommodating part is provided in the toothbrush body for easy storage of the vibrating motor and the battery.

On the other hand, since the battery is typically circular or cylindrical, the toothbrush body has an internal structure corresponding to the battery for accommodating the battery therein. At this time, the toothbrush body is provided with a switch that is operated to selectively supply the power of the battery to the vibration motor.

In addition, in order to reduce the cost of the user, the vibrating toothbrush has been developed in pursuit of an easy structure of replacing the toothbrush head and the battery as described above.

As a conventional technology as described above, there is a 'vibration toothbrush' of Republic of Korea Utility Model Publication No. 20-0418868.

Referring to Figure 1, the vibrating toothbrush relates to a vibrating toothbrush that can prevent the case 10 and the toothbrush bar 20 from being separated, in the case of coupling between the case 10 and the toothbrush bar 20, the locking groove ( 11) and the locking jaw 21 is fastened to the structure. In addition, the case 10 and the stopper 30 also has a structure using the coupling jaw 31.

As described above, the coupling structure requires several manufacturing processes due to the complexity of the coupling structure in manufacturing the case 10, the toothbrush rod 20, and the stopper 30. Accordingly, the manufacturing time is increased and the structure is complicated. Therefore, there is a problem that the manufacturing cost increases.

In addition, the coupling structure using the engaging jaw 21 and the engaging jaw 31 according to the use time is fatigue rupture, that is, the cracks in the material grow little by little and finally the material is broken when the number of repetitions exceeds a certain limit. Durability issues are always present with the vibrating toothbrush because they are easily exposed to conditions.

The present invention is to solve the above-mentioned problems of the prior art, while solidifying the coupling between the toothbrush head portion and the toothbrush body, provided with an insert-type fastening structure that minimizes the possibility of fatigue failure by minimizing the fatigue accumulation due to the radial impact It is an object of the present invention to provide a vibrating toothbrush.

Another object of the present invention is to prevent the toothbrush head portion from being arbitrarily rotated after coupling the toothbrush head portion in which the bristles are planted by using the fastening structure of the guide groove and the guide protrusion fastened to the guide groove.

According to the present invention, the toothbrush head portion having an insertion groove formed therein and a locking projection formed to protrude from the side of the insertion groove; And a connection member having a connection member body, a first insertion portion protruding from one side in the longitudinal direction of the connection member body, the first insertion portion coupled to the insertion groove, and a coupling protrusion protruding on an outer circumferential surface of the first insertion portion. It is achieved by a vibrating toothbrush.

In addition, the toothbrush head portion is supported by the connecting member body can prevent the progress in the coupling direction.

In addition, each of the engaging projection and the engaging projection when the insertion groove and the first insertion portion is coupled to each other in a way to pass through the riding direction so as to mutually support in the direction spaced apart to prevent the release of the toothbrush head portion and the connection member. It is done.

Here, the engaging projection and the engaging projection is characterized in that it is formed in an annular (環形).

In addition, the guide protrusion is formed at one end of any one of the toothbrush head portion or the connecting member body in the coupling direction; The toothbrush head may further include a guide groove formed at one end of the other of the connection member main body to be coupled to the guide protrusion.

The apparatus may further include a lower cap having a first hollow groove so that an accommodation space is formed therein, and the connection member has a second hollow groove formed therein so as to communicate with the first hollow groove, and the first hollow groove. And a carrier in which the battery and the vibration motor operated by the battery are installed in the second hollow groove.

The carrier may include a battery fixing part in which a battery mounting groove is formed to mount the battery; A vibration motor fixing part in which a vibration motor mounting groove is formed to mount the vibration motor; And a PCB mounting unit having a PCB installed therein to convert the power applied through the battery to be suitable for driving the vibration motor, wherein the vibration motor fixing unit is disposed adjacent to the toothbrush head.

And, the switch for applying or blocking the power of the battery to the vibration motor is characterized in that it is installed to be electrically connected to the PCB.

In addition, the connection member may further include a second insertion part which is formed to protrude from the other side in the longitudinal direction of the connection member main body and is coupled to the first hollow groove in a fitting manner.

In addition, the outer peripheral surface of the second insert may further include an elastic member integrally formed by a double injection molding method.

Here, the elastic member is characterized in that the lower cap and the friction coefficient is formed of a different material.

In addition, when the lower cap and the connecting member is coupled, the vertical drag of the friction force is generated by the elastic restoring force of the pressurized elastic member.

The vibrating toothbrush according to the present invention having the configuration as described above supports each other in the direction in which the engaging projection and the engaging projection are spaced apart from each other by riding in a skipping manner, and the toothbrush head part is supported by the bent surface and proceeds in the engaging direction. In order to prevent this from happening, the possibility of fatigue failure due to force on the outside acting in the radial direction can be significantly reduced.

In addition, it is possible to prevent the toothbrush head portion from being arbitrarily rotated after the toothbrush head portion is coupled using the guide groove fastened to the guide groove and the guide groove.

1 is a cross-sectional view showing a conventional vibrating toothbrush,
Figure 2 is a combined perspective view showing a vibrating toothbrush according to the present invention,
3 is an exploded perspective view showing a vibrating toothbrush according to the present invention,
4 is an axial cross-sectional view showing a vibrating toothbrush according to the present invention,
5 is a view showing a connecting member of the vibrating toothbrush according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to clarify a solution related to the technical problem of the present invention. However, in describing the present invention, when the description of related related art makes the gist of the present invention unclear, the description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a designer, a manufacturer, or the like. Therefore, the definition should be made based on the contents throughout the specification. Also, parts denoted by the same reference numerals (reference numbers) throughout the specification represent the same elements.

Hereinafter, the vibrating toothbrush 1 according to the present invention will be described.

2 to 4, the vibrating toothbrush 1 according to the present invention includes a lower cap 100, a connection member 300 coupled to the lower cap 100, a lower cap 100, and a connection member 300. Including a carrier 500 is inserted into the interior, the toothbrush head 700 and the tooth cap head 700 is formed in the insertion groove 710 to be coupled to the connection member 300 and the upper cap 800. have.

The lower cap 100 has an opening formed at one side thereof, that is, the inlet is opened to be coupled to the connection member 300, and the first hollow groove 110 and the coupling part 120 having a structure in which an accommodation space is formed. It may include.

Here, the coupling part 120 is formed in accordance with the shape of the connection member 300, as shown in Figures 3 to 4, is fastened in a fitting manner with one end of the connection member 300.

Meanwhile, referring to FIGS. 2 to 5, the connection member 300 may include a second hollow groove 310, a connection member main body 320, a first insertion part 330, a second insertion part 340, and elasticity. The member 350 may include a through hole 360, a protrusion line 370, and a protruding cover 380.

The second hollow groove 310 of the connection member 300 has an opening formed at one side, and has a receiving space formed therein, and is a space communicating with the first hollow groove 110.

Therefore, as shown in FIG. 4, when the lower cap 100 and the connection member 300 are coupled, a part of the carrier 500 is inserted into the first hollow groove 110 and the second hollow groove 310 is formed. The remaining portion of the carrier 500 is inserted into the.

Referring to FIG. 4, each of the first inserting portion 330 and the second inserting portion 340 is formed to protrude from both ends of the connecting member body 320 in the axial direction, and the first inserting portion 330 is a toothbrush. Inserted into the insertion groove 710 of the head portion 700 is fastened. And, the second inserting portion 340 is fastened in a fitting manner to the coupling portion 120.

Here, the first inserting portion 330 may include a coupling protrusion 331 formed to protrude on the outer circumferential surface. In addition, the toothbrush head 700 coupled to the first insertion part 330 is formed to protrude in the circumferential direction on the side of the insertion groove 710 and the insertion groove 710 into which the first insertion part 330 is inserted. The locking protrusion 720 may be included.

3 and 4, the coupling protrusion 331 is formed to protrude on the outer circumferential surface of the first insertion part 330. And, when the first insertion portion 330 is inserted into the insertion groove 710 of the toothbrush head 700, as shown in Figure 4, the engaging projection 331 is a locking projection 720 of the insertion groove 710. ) And combine in a skipping way.

Accordingly, the engaging projection 331 and the engaging projection 720 are mutually supported against the force acting in the direction to be spaced apart to prevent the coupling member 300 and the toothbrush head 700 is released. However, when a larger force acts in a direction apart from the mutual supporting force of the coupling protrusion 331 and the locking protrusion 720, the connection member 300 and the toothbrush head 700 are released.

Here, the coupling protrusion 331 and the locking protrusion 720 may be formed in an annular shape along the circumferential direction.

In addition, the guide grooves 321 and 730 may be formed at one end of the connection member main body 320 or the toothbrush head part 700 in the coupling direction, and the connection member main body 320 or the toothbrush head part ( One end of the other of the 700 may be formed with guide protrusions 322 and 740 to be coupled to the guide grooves 321 and 730.

Referring to FIGS. 3 and 4, a plurality of guide protrusions 322 may be formed at one end of the connecting member main body 320 in the insertion direction to protrude from the connecting member main body 320 along the circumferential direction. As the plurality of guide protrusions 322 are disposed, guide grooves 321 may be formed between the guide protrusions 322.

In addition, a plurality of guide protrusions 740 may be formed at one end of the toothbrush head 700 in the insertion direction to protrude from the toothbrush head 700 along the circumferential direction. As the plurality of guide protrusions 740 are arranged, as shown in FIG. 3, a guide groove 730 may be formed between the guide protrusions 740.

Accordingly, the guide protrusion 740 of the toothbrush head 700 is coupled to the guide groove 321 of the connecting member main body 320, and the guide protrusion 322 of the connecting member main body 320 is the toothbrush head 700. Is fastened to the guide groove 730 of the. Accordingly, the coupling of the guide grooves 321, 730 and the guide protrusions 322, 740 guides the coupling of the toothbrush head portion 700 and the connecting member 300, and also the toothbrush with respect to the connecting member 300. The head part 700 is prevented from rotating arbitrarily.

Meanwhile, as illustrated in FIGS. 3 and 4, the second inserting portion 340 is formed to protrude from the connecting member body 320 on the opposite side of the first inserting portion 330. And, the second inserting portion 340 is fastened in a fitting manner to the coupling portion 120 of the lower cap 100.

In addition, the elastic member 350 may be formed to protrude in the radial direction on the outer circumferential surface of the second inserting portion 340. Here, the elastic member 350 may be formed of a soft material having an elastic restoring force such as silicon material or synthetic rubber. Accordingly, the elastic member 350 may have an elastic restoring force.

Therefore, when the lower cap 100 or the toothbrush head 700 and the connection member 300 are coupled, a reaction force in the vertical direction due to the elastic restoring force is formed on the elastic member 350 pressed by the fitting method. Can be.

Accordingly, a vertical drag due to the elastic restoring force is generated between the elastic member 350 and the inner circumferential surface of the coupling part 110 of the lower cap 100 or the inner circumferential surface of the insertion groove 710 of the toothbrush head 700. Drag is the main cause of friction.

Therefore, the coupling of the lower cap 100 and the connection member 300 prevents rotation in an arbitrary direction or release of the coupling by the friction force.

That is, since the elastic member 350 is formed of the soft material as described above, it is possible to prevent the flow of the lower cap 100 and the connection member 300.

In addition, since the elastic member 350 may be formed of a material having a friction coefficient different from that of each of the lower cap 100 and the connecting member 300, the elastic member 350 may not only firmly couple the lower cap 100 and the connecting member 300. Arbitrary rotation can also be prevented.

In addition, the connection member 300 and the elastic member 350 may be formed by a double injection molding method, which is a method of injection molding two kinds of materials sequentially in a mold.

Accordingly, when manufacturing by the double injection molding method, since the combination of materials is made in the mold, the manufacturing process for manufacturing the connecting member 300 can be simplified, thereby reducing the cost. In addition, since the elastic member 350 is formed integrally with the connection member 300 by a double injection molding method, there is no gap, and thus the efficiency of preventing the inflow of foreign substances is high.

That is, since the elastic member 350 of the connection member 300 is molded by the double injection molding method, the clearance between the second inserting portion 340 and the elastic member 350 is removed to prevent the inflow of foreign matter. This also has the advantage of reducing the number of surface components.

And, in order to increase the efficiency for preventing the penetration of a liquid material such as water into the gap, the elastic member 350 is preferably formed at the end of the insertion direction of the second insertion portion 340.

On the other hand, as shown in Figure 5, the connection member 300, the elastic member 350 may be formed on both ends of the second inserting portion 340 at both ends for a perfect foreign material inflow prevention and firm coupling to be.

Referring to FIG. 4, the through hole 360 is formed to communicate with the outside on one side of the outer circumferential surface of the connection member main body 310 in order to press the switch 400. In addition, the soft protrusion cover 380 is installed to cover the through hole 360, but the lower surface is installed to contact the switch 400. Therefore, when the protruding cover 380 is pressed, the switch 400 is pressed to turn on / off the vibrating toothbrush 1 according to the present invention.

On the other hand, the projection line 370, as shown in Figure 4, may be formed to protrude along the outer peripheral surface circumference of the connection member main body 320. In addition, the protrusion line 370 fits into the annular groove formed along the inner circumferential surface of the upper cap 800 to couple the upper cap 800 to the connecting member 300.

Referring to FIGS. 3 and 4, the carrier 500 is inserted into and installed in the first and second hollow grooves 110 and 310. The carrier 500 may include a battery fixing part 510, a PCB mounting part 520, and a vibration motor fixing part 530.

Here, the battery fixing part 510 is provided with a battery mounting groove 511 to match the external shape of the battery 2 to fix the battery (2). And, as shown in Figure 3, the battery mounting groove 511 is formed long along the longitudinal direction of the carrier 500.

In addition, the power supplied by the battery 2 is supplied to the vibration motor 3 via the PCB 600 installed in the PCB mounting unit 520, the power supplied on / off by the switch 400 do.

Here, since the wiring for supplying the power of the battery 2 to the vibration motor 3 will be apparent to those skilled in the art with reference to the present specification, the description of the wiring will be omitted.

In addition, a PCB 600 is installed in the PCB mounting unit 520, and the PCB 600 converts power of the battery 2 to be suitable for driving the vibration motor 3 and is electrically connected to the switch 400. . Therefore, the switch 400 is turned on / off by the upper end of the switch 400 being pressed by the protruding cover 380, whereby the power of the battery 2 is supplied or cut off.

The vibration motor fixing part 530 fixes the vibration motor 3. Vibration motor fixing groove 531 is formed in the vibration motor mounting groove 531 to match the external shape of the vibration motor (3) for fixing the vibration motor (3). Therefore, since the vibration motor mounting groove 531 is formed to match the external shape of the vibration motor 3, the vibration of the vibration motor 3 is transmitted to the toothbrush head 700 without loss.

 In addition, in order for the vibration of the vibration motor 3 to be efficiently transmitted to the toothbrush head 700, the vibration motor fixing part 530 is preferably disposed adjacent to the toothbrush head 700.

The toothbrush head 700 is coupled to the connection member 300. The toothbrush head 700 includes bristles for cleaning teeth.

Referring to FIG. 4, the toothbrush head 700 includes an insertion groove 710 formed at a rear end thereof, and the insertion groove 710 has a first insertion portion 330 of the connection member 300 as described above. The fitting is tightened.

The upper cap 800 covers the toothbrush head 700. In addition, the opening side inner peripheral surface of the upper cap 800 is formed with an annular groove formed along the inner peripheral surface circumference, the groove is fastened in a fitting manner with the projection line 370 of the connection member main body 310. Here, the upper cap 800 may be made of a transparent material.

Various embodiments according to the present disclosure may solve various technical problems other than the contents mentioned in the related art as well as the related art.

The present invention has been described with reference to embodiments. However, it will be apparent to those skilled in the art that the present invention may be embodied in a modified form without departing from the essential technical spirit of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. That is, the true technical scope of the present invention is shown in the appended claims, and all differences within the equivalent scope will be construed as being included in the present invention.

1: vibrating toothbrush according to the present invention
2: battery 3: vibration motor
100: lower cap 110: first hollow groove
300: connection member 400: switch
500: carrier 600: PCB
700: toothbrush head 800: upper cap

Claims (8)

A toothbrush head having an insertion groove formed therein and an annular locking protrusion formed on the inner circumferential surface of the insertion groove in a circumferential direction;
A connection member body, a first insertion portion formed to protrude from one side in the longitudinal direction of the connection member body and coupled to the insertion groove, and an annular engagement protrusion formed to protrude along the circumferential direction on an outer circumferential surface of the first insertion portion; A connecting member;
Including,
When the insertion groove and the first insertion portion is coupled to each of the engaging projection and the engaging projection is mutually supported in a direction to be spaced apart by coupling in a riding way,
A plurality of guide protrusions protruded along the circumferential direction of one end of the connection member main body and the toothbrush head part facing each other; And
A guide groove provided between the connecting member body and the guide protrusion of the toothbrush head;
More,
The guide protrusion of the toothbrush head portion is coupled to the guide groove of the connecting member body, the guide protrusion of the connecting member body is coupled to the guide groove of the toothbrush head portion. delete delete The method of claim 1,
Further comprising a lower cap having a first hollow groove to form a receiving space therein,
A second hollow groove is formed in the connection member so as to communicate with the first hollow groove, and a carrier is installed in the first hollow groove and the second hollow groove with a battery and a vibration motor operated by the battery. Vibrating toothbrush, characterized in that. The method of claim 4, wherein
The carrier
A battery fixing part in which a battery mounting groove is formed to mount the battery;
A vibration motor fixing part in which a vibration motor mounting groove is formed to mount the vibration motor;
And a PCB mounting unit on which a PCB for converting the power applied through the battery to drive the vibration motor is installed.
Vibrating toothbrush, characterized in that the vibration motor fixing portion is disposed adjacent to the toothbrush head. The method of claim 5,
Vibrating toothbrush, characterized in that the switch for applying or blocking the power of the battery to the vibration motor is installed to be electrically connected to the PCB. The method of claim 4, wherein
The connecting member further comprises a second insert formed to protrude from the other side in the longitudinal direction of the connecting member body to be coupled to the first hollow groove in a fitting manner. The method of claim 7, wherein
Vibrating toothbrush further comprises an elastic member integrally formed by the double injection molding method on the outer peripheral surface of the second insert.

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