JP2015165866A - cartridge type cosmetic container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve reliability of moving a push-rod to the delivery retraction limit when a cartridge body is removed.SOLUTION: A cartridge type cosmetic container 100 has a cartridge body 2 and a container body 1. The container body 1 includes: a body cylinder 4 on which the cartridge body 2 is freely attachably and detachably mounted; a driving body 60 which is relatively rotatably installed on the body cylinder 4; a push-rod 50 which moves in the axial direction through relative rotation of the body cylinder 4 and the driving body 60; and a screwing spring 40 which contracts in the axial direction by the installation of the cartridge body 2. A holding member 10 is provided with a magnet 6 and the push-rod 50 is provided with a magnet 52 that attracts the magnet 6 with each other. The screwing spring 40 is composed of: a front end part; a rear end part; a plurality of leaf spring parts 43 that bend to the inner periphery when the front end part and the rear end part are connected and contracted in the axial direction; and a female screw projection 44 that is installed in the leaf spring part 43 and that meshes with the male screw 51 of the push-rod 50 by bending of the leaf spring part 43.

Description

  The present invention relates to a cartridge-type cosmetic container in which a cartridge body filled with a cosmetic is detachably mounted.

  2. Description of the Related Art Conventionally, a cartridge-type feeding container that allows cosmetics in a cartridge body to advance finely through a tip opening hole of the cartridge body has been used. Some cartridge-type feeding containers are not provided with a feeding mechanism in the cartridge body, and are provided with a feeding mechanism completely separated and independent from the cartridge body.

  In Patent Document 1, when the cartridge body is removed from the threaded portion of the front cylinder, the sliding shaft moves to the extension and retraction limit of the outer cylinder by a spring, so that a new cartridge body can be mounted. Is disclosed. In this container, when the cartridge body is attached, the sleeve having the tapered surface closes the chuck claw of the screw chuck, and the screw on the inner surface of the chuck claw and the screw of the sliding shaft are screwed together. When the cartridge body is removed, the sleeve is separated from the screw chuck by the restoring force of the spring between the sleeve and the chuck, and the chuck claw of the screw chuck that is restrained by the taper surface of the sleeve is expanded by its elasticity. Open. Thereby, the screwing of the screw on the inner surface of the chuck claw and the screw on the sliding shaft is released.

Japanese Utility Model Publication 3-49611

  However, in the container of Patent Document 1, the sliding shaft can be moved to the retreating limit when the cartridge body is removed by a complicated mechanism including a sleeve, a screw chuck, and a spring. In such a complicated mechanism, the chuck claw at the tip of the screw chuck is constrained by the taper surface of the sleeve and bent inward for a long time, so that the chuck claw cannot be expanded only by its elasticity. There is. For this reason, there is a possibility that the sliding shaft cannot be returned to the feeding and retracting limit without releasing the screw engagement between the screw on the inner surface of the chuck claw and the screw of the sliding shaft.

  The present invention has been made in view of the above-described problems, and when the cartridge body is removed, the mechanism for moving the push rod to the withdrawal retreat limit is simplified, and the reliability for moving the push rod to the withdrawal retreat limit is improved. For the purpose.

  The present invention is a cartridge-type cosmetic container comprising a cartridge body filled with a cosmetic and a container body to which the cartridge body is attached, wherein the cartridge body is a cartridge whose cosmetic is filled on the inner periphery. An outer cylinder, and a holding member that is positioned at the rear end of the cosmetic and is slidable in the axial direction within the cartridge outer cylinder, and the container main body includes a main body cylinder to which the cartridge body is detachably attached. A driving body mounted coaxially with the main body cylinder so as to be relatively rotatable, a tip abutting on the holding member, an external thread is formed on the outer periphery, and a shaft is formed by relative rotation between the main body cylinder and the driving body. A push rod that moves in a direction, and a screw spring that is accommodated in the main body cylinder and contracts in the axial direction when the cartridge body is attached, and is provided on one of the holding member and the push rod. A first magnet is provided, and the other of the holding member and the push rod is provided with a metal body that is attracted to the first magnet or a second magnet that is attracted to the first magnet, The screw spring includes a first flat plate portion whose axial position is defined in the main body cylinder, a second flat plate portion that is close to the first flat plate portion by mounting the cartridge body, and the first flat plate portion. And a plurality of leaf spring portions that bend toward the inner periphery when contracted in the axial direction, and at least one of the plurality of leaf spring portions, the leaf spring portion being And an internal thread protrusion that meshes with the external thread by bending.

  In the present invention, the screw spring is contracted in the axial direction in a state where the cartridge body is attached to the main body cylinder, and the leaf spring portion is bent toward the inner periphery. Thereby, the internal thread protrusion provided in the leaf | plate spring part meshes with the external thread of a push rod. When the cartridge body is removed, the engagement between the female thread protrusion of the screw spring and the male thread of the push bar is released, and the push bar can freely move in the axial direction. Therefore, it is possible to simplify the mechanism for moving the push rod to the withdrawal retreat limit when the cartridge body is removed, and to improve the reliability of moving the push rod to the withdrawal retreat limit.

(A) is sectional drawing of the front of the cartridge type cosmetics container which concerns on embodiment of this invention, (b) is AA sectional drawing in Fig.1 (a). It is an exploded view of a cartridge body, (a) is sectional drawing of the front of a cap, (b) is a front view of a cartridge outer cylinder, (c) is BB in FIG.2 (b). It is sectional drawing, (d) is sectional drawing of the front of a holding member, (e) is CC sectional drawing in FIG.2 (d). It is an exploded view of the holding member, (a) is a front view of the holding member main body, (b) is a front view of the pin, (c) is a side view in FIG. (D) is a front view of a magnet, (e) is a front view of a metal body. It is a perspective view of the metal body applied to a holding member. (A) is a front sectional view of the holding member when the magnet is applied, (b) is a front sectional view of the holding member when the metal body is applied, (c) It is sectional drawing of the front of a holding member at the time of the metal body and the pin which concerns on a modification being applied. (A) is a front view of a main body inner cylinder, (b) is sectional drawing of the front of a main body inner cylinder, (c) is a top view in FIG.6 (b). (A) is a front view of a drive body, (b) is sectional drawing of the front in FIG. 7 (a), (c) is a top view in FIG. 7 (a). It is an exploded view of a push rod, (a) is a front view of a rod shaft and a large diameter part, and (b) is a front view of a magnet. (A) is a perspective view of a screwing spring, (b) is a perspective view which shows the state in which the screwing spring was attached to the cartridge type cosmetic container. It is a figure which shows the state twisted so that the screwing spring might get entangled with the outer periphery of a push rod. It is a figure explaining attachment to a main part cylinder of a cartridge body. In the cartridge type cosmetic container of FIG. 1, it is a figure which shows the state by which the push rod was drawn out to the advance limit. It is a figure which shows the state from which the cartridge body was removed in the cartridge type cosmetic container of FIG. It is sectional drawing of the front of the cartridge type cosmetics container which concerns on the modification of embodiment of this invention. It is an exploded view of the cartridge body which concerns on a 1st modification, (a) is a front view of a cartridge outer cylinder, (b) is DD sectional drawing in Fig.15 (a), (c ) Is a front sectional view of the holding member, and (d) is an EE sectional view in FIG. It is an exploded view of the cartridge body which concerns on a 2nd modification, (a) is a front view of a cartridge outer cylinder, (b) is FF sectional drawing in Fig.16 (a), (c ) Is a cross-sectional view of the front surface of the holding member, and (d) is a GG cross-sectional view in FIG. (A) is a front view of the holding member which concerns on a 1st modification, (b) is sectional drawing of the front of a holding member at the time of a magnet being applied, (c) is a metal body. It is sectional drawing of the front of the holding member at the time of being applied. (A) is a front view of the holding member which concerns on a 2nd modification, (b) is sectional drawing of the front of a holding member at the time of a metal body being applied, (c) is a metal body It is sectional drawing of the front of a holding member at the time of applying the pin concerning and a modification. (A) is a front view of the holding member which concerns on a 3rd modification, (b) is sectional drawing of the front in FIG. 19 (a).

  Hereinafter, a cartridge type cosmetic container 100 according to an embodiment of the present invention will be described with reference to FIGS.

  First, the overall configuration of the cartridge-type cosmetic container 100 will be described with reference to FIG.

  The cartridge-type cosmetic container 100 includes a cartridge body 2 filled with the cosmetic 9 and a container body 1 to which the cartridge body 2 is attached by rotating relative to the central axis.

  The cartridge body 2 includes a cartridge outer cylinder 20 whose inner periphery is filled with cosmetic 9, a holding member 10 that can slide in the cartridge outer cylinder 20 in the axial direction, and a cap 3 that is attached to the cartridge outer cylinder 20. Prepare.

  The container main body 1 includes a main body cylinder 4 to which the cartridge body 2 is detachably attached, a drive body 60 that is coaxially attached to the main body cylinder 4 and is relatively rotatable, and a male screw 51 is formed on the outer periphery. 4 and a push bar 50 that is fed out by relative rotation of the drive body 60 to push out the cosmetic 9 in the cartridge body 2, and a screw spring 40 that is accommodated in the main body cylinder 4 and contracts in the axial direction when the cartridge body 2 is attached. Is provided. The parts for feeding the cosmetic 9 are not provided in the cartridge body 2 but are collected in the container body 1.

  Next, the cartridge body 2 will be described mainly with reference to FIGS.

  The cartridge body 2 is urged in the axial direction by the restoring force of the screw spring 40 while being attached to the container body 1.

  The cosmetic 9 is filled into the cartridge outer cylinder 20 from the tip opening hole 21a side in a state where the holding member 10 is inserted into the cartridge outer cylinder 20. The cosmetic 9 filled in the cartridge outer cylinder 20 is filled in a heated state and becomes a gel or a rod when cooled.

  As shown in FIG. 2 (b), the cartridge outer cylinder 20 has a cosmetic body holding portion 21 in which a front end opening hole 21a is formed, and a main body when attached to the main body cylinder 4 in which a rear end opening hole 24 is formed. A fitting portion 25 to be fitted into the cylinder 4, an engagement projection 27 formed on the outer periphery of the fitting portion 25 and projecting in the radial direction, and provided between the cosmetic holding portion 21 and the fitting portion 25 and projecting to the outer periphery. And a flange 22 to be used.

  The cosmetic material holding part 21 is formed in a cylindrical shape. Cosmetics 9 are filled in the inner periphery of the cosmetic holder 21. The front end portion of the cosmetic material holding portion 21 is formed obliquely. A plurality of vertical ribs 23 extending in the axial direction from the flange 22 are formed on the outer periphery of the cosmetic material holding portion 21. The vertical ribs 23 lock the cap 3 so as not to be relatively rotatable when the cap 3 is attached.

  The fitting portion 25 is formed in a cylindrical shape. As for the inner periphery of the fitting part 25, the through-hole 21c is continuously formed from the inner periphery of the cosmetics holding | maintenance part 21. FIG. On the outer periphery of the fitting portion 25, an engagement protrusion 27 that protrudes in the radial direction and engages with an engagement groove 32 of the main body cylinder 4 described later is formed.

  A holding member retaining portion 28 that prevents the retaining member 10 from coming off is formed at the rear end of the fitting portion 25. The holding member retaining portion 28 projects annularly from the rear end of the inner peripheral wall 21 b toward the inner periphery along the rear end surface 26. The inner periphery of the holding member retaining portion 28 forms a rear end opening hole 24 of the cartridge outer cylinder 20.

  The engagement protrusion 27 is in contact with an abutment surface 27 a that abuts on an abutment surface 32 a of an engagement groove 32 of the main body cylinder 4 to be described later when the cartridge body 2 is urged by the restoring force of the screw spring 40. A convex portion 27b formed in a convex shape on the surface 27a, a lower tapered surface 27c that comes into contact with a guide portion 39 to be described later when assembled to the main body cylinder 4, and a corner portion 39a when engaged with the engaging groove 32 And an upper tapered surface 27d. A pair of engaging protrusions 27 are formed at intervals of 180 degrees.

  When the cap 3 is attached, the flange 22 abuts against the end of the cap 3 and defines the relative position in the axial direction.

  The holding member 10 is inserted into the inner periphery of a through hole 21c that penetrates the cartridge body 2 in the axial direction. The holding member 10 is located at the rear end of the cosmetic material 9. The holding member 10 not only holds the cosmetic 9 but also prevents leakage of the filled cosmetic 9 and causes the cosmetic 9 to protrude from the tip opening hole 21 a by the movement of the push bar 50.

  As shown in FIGS. 2D and 2E, the holding member 10 is formed in a substantially cylindrical shape. The holding member 10 includes a holding member main body 11 formed in a cylindrical shape, a pin 80 attached to the holding member main body 11, and a magnet 6 attached to the pin 80. Further, as shown in FIGS. 3D and 3E, a metal body 7 having the same shape as the magnet 6 may be attached to the pin 80 instead of the magnet 6.

  As shown in FIG. 3A, the holding member main body 11 has an outer peripheral wall 11 a formed in a cylindrical shape, and a bottom plate 12 filled with the cosmetic 9 on one surface and facing the push rod 50 on the other surface. . On the inner periphery of the holding member main body 11, a cosmetic holding portion 13 that holds the cosmetic 9 is formed.

  The bottom plate 12 is formed in an annular shape and has a bottom surface portion 12a with which the bottom surface of the cosmetic 9 abuts, and an annular standing portion formed on the inner periphery of the bottom surface portion 12a and erected on the side filled with the cosmetic 9 12b and a through hole 12c formed at the center of the standing portion 12b.

  The pin 80 is fitted into the center of the bottom plate 12 in the radial direction. The pin 80 is formed so as to protrude in the axial direction from the central portion in the radial direction of the holding member 10 in a state of being attached to the cosmetic material holding portion 13. As shown in FIGS. 3B and 3C, the pin 80 includes a main body portion 81 in which a magnet holding portion 83 for holding the magnet 6 is formed on the inner periphery, and a small diameter portion 85 having a smaller diameter than the main body portion 81. And a large-diameter portion 84 that is larger in diameter than the small-diameter portion 85 and forms a tip portion. The main body portion 81, the small diameter portion 85, and the large diameter portion 84 are integrally formed continuously in the axial direction.

  The main body 81 is formed to have an outer diameter substantially the same as the inner diameter of the through hole 12c. A flange 82 is formed at the bottom of the main body 81. The flange 82 has an outer shape substantially the same as the inner diameter of the bottom surface portion 12a. The flange 82 is formed to have substantially the same thickness as the bottom surface portion 12a. Thus, in a state where the pin 80 is fitted into the bottom plate 12, the bottom surface of the flange 82 and the bottom surface of the bottom plate 12 are substantially flush (see FIG. 5A).

  A pair of convex portions 81 a that fix the pin 80 in the axial direction with respect to the bottom plate 12 are formed on the outer periphery of the main body 81. The convex portion 81a is formed in a tapered shape with a diameter increasing from the front end portion toward the rear end portion so as to be easily inserted into the through hole 12c. A lower end surface 81b that sandwiches the bottom plate 12 with the flange 82 in a state where the pin 80 is fitted into the bottom plate 12 is formed at the rear end portion of the convex portion 81a. By providing the convex portion 81 a, there is no gap between the flange 82 and the bottom plate 12 in a state where the pin 80 is fixed to the cosmetic material holding portion 13. Therefore, the cosmetic 9 does not leak.

  The magnet holding portion 83 is formed in a concave shape in the axial direction from the rear end portion of the pin 80. The magnet holding part 83 is formed in a shape corresponding to the shape of the magnet 6. The depth of the magnet holding portion 83 is formed smaller than the length of the magnet 6. Thereby, the magnet 6 protrudes in the axial direction from the bottom plate 12 in a state where the magnet 6 is fitted in the magnet holding portion 83 (see FIG. 5A). If the pin 80 is fitted into the bottom plate 12 in a state where the magnet 6 is not fitted in the magnet holding part 83, the magnet holding part 83 is easily bent to the inner periphery, so that the fitting is easy.

  The large diameter portion 84 is formed in a tapered shape whose diameter increases toward the tip portion. The distal end portion of the large diameter portion 84 is formed with a small diameter as compared with the through hole 12c. The tip of the pin 80 is inserted into the cosmetic material 9. At this time, since the large diameter portion 84 is caught by the cosmetic material 9, the cosmetic material 9 is prevented from coming off the holding member 10. In addition, the shape of the pin 80 should just be a shape which the cosmetics 9 are hard to remove | deviate from the holding member main body 11 when the holding member main body 11 moves below in the state which the cosmetics 9 melt | dissolved and filled are solidified.

  The magnet 6 is formed in a cylindrical shape. The magnet 6 is attracted to a magnet 52 of a push rod 50 described later. The magnet 6 is a rare earth magnet such as a neodymium magnet. The magnet 6 is non-rotatably fixed to the magnet holding portion 83 by adhesion, welding, or pressing. The rear end portion 6a of the magnet 6 is in contact with a front end portion 52a of a magnet 52 of the push rod 50 described later so as to be relatively rotatable. Even when the metal body 7 is fixed to the magnet holding portion 83 instead of the magnet 6, the rear end portion 7a of the metal body 7 contacts the front end portion 52a of the magnet 52 of the push rod 50 so as to be relatively rotatable.

  Further, as shown in FIG. 5B, the holding member 10 may include a metal plate 106 as a metal body instead of the magnet 6 when the magnet 52 is provided on the push rod 50 described later. The holding member 10 has a metal plate holding portion 14 as a metal body holding portion formed in a concave shape in the axial direction from the surface of the bottom plate 12 opposite to the surface on which the cosmetic 9 is located. When the metal plate 106 is used, the magnet holding portion 83 of the pin 80 shown in FIG. 5B is not necessary, so the pin 180 having no magnet holding portion 83 as shown in FIG. May be used. At this time, the pins 80 and 180 attached to the holding member main body 11 prevent the cosmetic 9 from coming off the holding member 10.

  As shown in FIG. 4, the metal plate 106 is formed in a circular plate shape and is fitted into the metal plate holding portion 14 so as not to rotate. Similar to the rear end portion 6a of the magnet 6, the rear end portion 106a of the metal plate 106 is in contact with a front end portion 52a of a magnet 52 of the push rod 50 described later so as to be relatively rotatable. The depth of the metal plate holding portion 14 is formed substantially the same as the thickness of the metal plate 106.

  As shown in FIG. 2A, the cap 3 is formed in a bottomed cylindrical shape. The cap 3 is attached to the cosmetic material holding portion 21 of the cartridge outer cylinder 20 and closes the tip opening hole 21a. A knurled rib 3 a that engages with the vertical rib 23 of the cartridge outer cylinder 20 is formed on the inner periphery of the open end of the cap 3. When the cap 3 is attached to the cartridge outer cylinder 20, it cannot be rotated relative to the cartridge outer cylinder 20. Therefore, if the user holds and rotates the cap 3, the user can rotate the cartridge outer cylinder 20 at the same time.

  The cap 3 may not be provided when it is desired to reduce the outer diameter of the cartridge-type cosmetic container 100 or when the airtightness of the cartridge body 2 is not required.

  The cartridge body 2 configured as described above is configured such that the cap 9 is attached to the cartridge outer cylinder 20 in which the holding member 10 is inserted and the cosmetic 9 is filled, and the tip opening hole 21a is closed, so that the cosmetic 9 Can be sold as a single cartridge. Alternatively, the cartridge body 2 may be sold as a cartridge-type cosmetic container 100 including the cartridge body 2 with the cartridge body 2 attached to the container body 1.

  Next, each part which comprises the container main body 1 is demonstrated mainly with reference to FIGS.

  The main body cylinder 4 includes a main body inner cylinder 30 formed in a cylindrical shape and a main body outer cylinder 70 covering the outer periphery of the main body inner cylinder 30 (see FIG. 1). As shown in FIG. 6B, the inner periphery of the main body inner cylinder 30 is separated into a front cavity part 36 and a rear cavity part 37 by a partition wall 35 provided at a substantially axial center. A through hole 34 through which the rod shaft 55 of the push rod 50 can advance and retreat is formed at the center of the partition wall 35.

  The main body cylinder 30 has a flange 30b which is provided at the upper end 30a and protrudes to the outer periphery. The flange 30 b is formed to have substantially the same diameter as the outer diameter of the flange 22 of the cartridge body 2.

  The main body outer cylinder 70 is attached in the axial direction from the lower end portion of the main body inner cylinder 30, and the upper end portion thereof abuts on the flange 30b. As shown in FIG. 1, the main body outer cylinder 70 is formed to have substantially the same diameter as the flange 30 b of the main body inner cylinder 30. Therefore, when the cartridge body 2 is attached to the container body 1, the flange 22 of the cartridge body 2, the flange 30 b of the body inner cylinder 30, and the body outer cylinder 70 are substantially flush with each other.

  A screw spring 40 is inserted into the front cavity 36. A plurality of vertical ribs 38 extending in the axial direction from the partition wall 35 are formed on the inner periphery of the front cavity portion 36. The vertical ribs 38 extend in the axial direction from the upper end surface 35a with which the screw spring 40 is inserted and abutted. The vertical rib 38 has an inner diameter smaller than that of a rear end portion 42 of the screwing spring 40 described later. As a result, when the screw spring 40 is inserted into the front cavity portion 36, the rear end portion 42 is held by the vertical rib 38, so that even if the cartridge body 2 is removed, the screw spring 40 does not fall out of the front cavity portion 36. . Depending on the outer diameter of the rear end portion 42, it is possible to prevent the rear end portion 42 from falling out even if the vertical rib 38 is not provided.

  The body cylinder 30 is formed in the vicinity of the distal end opening hole 31 at the upper end portion of the front cavity portion 36, and engages with the engagement protrusion 27 of the cartridge body 2, and the engagement groove 27 engages with the engagement protrusion 27. A guide portion 39 that guides the engagement protrusion 27 from the upper end portion 30 a to the guide portion 39, and a vicinity of the end of the rear cavity portion 37. And a fitting recess 33 that is connected to the drive body 60 so as to be relatively rotatable.

  The aforementioned insertion portion 25 of the cartridge body 2 is inserted into the front cavity portion 36 from the tip opening hole 31. Then, by rotating the main body cylinder 4 and the cartridge body 2 relative to each other around the central axis, the engagement protrusion 27 formed on the cartridge outer cylinder 20 of the cartridge body 2 is engaged with the engagement groove 32 of the main body inner cylinder 30. Match. Thereby, the cartridge body 2 is attached to the main body cylinder 4.

  The engagement groove 32 is formed on the contact surface 32a that contacts the contact surface 27a of the engagement protrusion 27 when the cartridge body 2 is urged in the axial direction by the restoring force of the screw spring 40, and the contact surface 32a. A concave portion 32b formed in a concave shape in the axial direction, and a through hole 32c formed in a region from when the engaging protrusion 27 is inserted in the axial direction to engaging in the circumferential direction and penetrating the main body inner cylinder 30 in the radial direction Is provided. A pair of engagement grooves 32 are provided at intervals of 180 degrees corresponding to the positions where the engagement protrusions 27 are provided.

  The contact surface 32 a is engaged with the contact surface 27 a of the engagement protrusion 27 of the cartridge body 2 in the axial direction to define the position of the cartridge body 2 in the axial direction with respect to the main body cylinder 4. At this time, the abutting surface 32a abuts against the abutting surface 27a between the surfaces, so that the wobbling of the cartridge body 2 with respect to the main body cylinder 4 can be prevented.

  The concave portion 32 b is engaged with the convex portion 27 b of the engagement protrusion 27 of the cartridge body 2 in the circumferential direction, and defines the circumferential position of the cartridge body 2 with respect to the main body cylinder 4.

  The through hole 32c is formed in a region having the contact surface 32a as an upper end surface. The through hole 32 c is formed to open from the engagement groove 32 to the upper portion of the guide portion 39. This facilitates the design of the mold when the main body inner cylinder 30 is manufactured by resin injection molding. Moreover, since the height of the engagement protrusion 27 can be increased by providing the through hole 32c, the engagement between the main body inner cylinder 30 and the cartridge body 2 can be strengthened. The outer peripheral side of the through hole 32c is closed by attaching the main body outer cylinder 70.

  The guide part 39 is formed thicker than the thin part 39b. The guide portion 39 is formed in a slope shape so as to guide the engagement protrusion 27 inserted in the axial direction from the thin portion 39 b to the engagement groove 32. The guide portion 39 is not limited to the slope shape, and may have a shape that guides the engagement protrusion 27 so as to rotate horizontally in the circumferential direction after the engagement protrusion 27 is inserted from the thin portion 39b in the axial direction.

  The fitting recess 33 is annularly formed in the inner periphery of the rear cavity portion 37. A fitting projection 65 (described later) of the drive body 60 is fitted into the fitting recess 33.

  As shown in FIG. 7A, the driving body 60 is formed in a bottomed cylindrical shape. The driving body 60 includes a fitting portion 61 that is fitted into the main body cylinder 4, a knob portion 62 that is formed continuously from the fitting portion 61 and is used by the user, and is formed on the inner periphery so as not to rotate relative to the push rod 50. A plurality of vertical ribs 63 to be engaged.

  The fitting part 61 is formed in a cylindrical shape. On the outer periphery in the vicinity of the base end of the fitting portion 61, a fitting convex portion 65 that fits into the fitting concave portion 33 of the main body inner cylinder 30 is provided in an annular shape. An annular groove 66 is recessed in the outer periphery of the fitting portion 61. If an O-ring is inserted into the groove 66, an appropriate resistance can be imparted to the relative rotation between the main body cylinder 4 and the driving body 60, and the operational feeling of the user can be improved.

  The knob portion 62 is formed with a larger diameter than the fitting portion 61. The knob portion 62 is formed to have substantially the same diameter as the outer diameter of the main body cylinder 4. As a result, when the driving body 60 is assembled to the main body cylinder 4, the outer peripheral surface of the main body cylinder 4 and the outer peripheral surface of the knob 62 are substantially flush.

  As shown in FIGS. 7B and 7C, the vertical rib 63 extends in the axial direction from the bottom surface 64 of the inner periphery to the opening end. The vertical rib 63 engages with a guide groove 56 of a large-diameter portion 54 described later of the push bar 50. In the present embodiment, four vertical ribs 63 are provided.

  As shown in FIG. 8A, the push rod 50 is formed in a substantially cylindrical shape. The push rod 50 is accommodated on the inner periphery of the main body cylinder 4 and the driving body 60. The push rod 50 includes a rod shaft 55 provided coaxially with the main body cylinder 4 and the driving body 60, a magnet 52 provided at one end of the rod shaft 55, and a large diameter portion 54 provided at the other end of the rod shaft 55.

  On the outer periphery of the rod shaft 55, for example, a male screw 51 which is a single thread of pitch P = 0.5 mm and lead L = 0.5 mm is formed. The cosmetic 9 filled in the cartridge body 2 is used by being pushed out by a small amount. Therefore, the pitch of the male screw 51 is set to a pitch at which the push bar 50 can be finely moved. However, the male screw 51 may be a single thread with a pitch P = 1.0 mm and a lead L = 1.0 mm, or a double thread with P = 1.0 mm and a lead L = 2.0 mm.

  A female screw projection 44 (described later) of the screw spring 40 can be engaged with the male screw 51. The stroke of the push rod 50 is determined by the length of the male screw 51 in the axial direction.

  A magnet holding portion 55 a is formed at the front end portion of the rod shaft 55. The magnet holding portion 55 a is formed in a concave shape in the axial direction from the front end portion of the rod shaft 55. The magnet holding part 55 a is formed in a shape corresponding to the shape of the magnet 52. The depth of the magnet holding portion 55 a is formed smaller than the length of the magnet 52. Thereby, the magnet 52 protrudes in the axial direction from the rod shaft 55 in a state where the magnet 52 is fitted in the magnet holding portion 55a (see FIG. 1A).

  The magnet 52 is formed in a cylindrical shape. The magnet 52 is attracted to the magnet 6 of the holding member 10. The magnet 52 is a rare earth magnet such as a neodymium magnet, for example, like the magnet 6. The magnet 52 is non-rotatably fixed to the magnet holding portion 55a by adhesion, welding, or pressing. Therefore, the magnet 52 rotates as the rod shaft 55 rotates.

  The magnetic force of the magnet 6 and the magnet 52 is set so that the magnetic flux density on the outer peripheral surface of the container is 300 gauss or less in a state where the cartridge type cosmetic container 100 is assembled. Therefore, even if the cartridge-type cosmetic container 100 contacts the magnetic card or the like, the data on the magnetic card is not damaged.

  The front end portion 52 a of the magnet 52 abuts on the magnet 6 of the holding member 10 of the cartridge body 2. Thereby, when the push rod 50 moves in the axial direction, the magnet 52 presses the holding member 10 via the magnet 6 and the cosmetic 9 in the cartridge body 2 is pushed out from the tip opening hole 21a.

  When the push bar 50 is provided with the magnet 52, the holding member 10 of the cartridge body 2 may have the metal body 7 or the metal plate 106 instead of the one having the magnet 6. On the other hand, when the magnet 6 is provided on the holding member 10 of the cartridge body 2, the push rod 50 of the container body 1 is replaced with one having the magnet 52 and has a metal body (not shown) that is attracted to the magnet 6. It may be a thing.

  In this way, the first magnet is provided on one of the holding member 10 and the push rod 50, and the other of the holding member 10 and the push rod 50 is attached to the metal body or the first magnet that is attracted to the first magnet. A matching second magnet may be provided.

  The large diameter portion 54 is formed to have a larger diameter than the rod shaft 55. The large diameter part 54 moves in the driving body 60 in the axial direction. The large-diameter portion 54 defines the extension limit of the push rod 50 when it comes into contact with the bottom surface 64 of the drive body 60. A plurality of guide grooves 56 that engage with the vertical ribs 63 of the driving body 60 are recessed in the axial direction on the outer periphery of the large diameter portion 54. When the guide groove 56 is engaged with the vertical rib 63, relative rotation between the push rod 50 and the driving body 60 becomes impossible. Therefore, when the user picks and rotates the driving body 60, the push rod 50 also rotates at the same time.

  As shown in FIG. 9A, the screw spring 40 is formed in a drum shape. The screw spring 40 includes a rear end portion 42 as a first flat plate portion whose axial position is defined in the main body inner cylinder 30, and a second flat plate portion that is close to the rear end portion 42 when the cartridge body 2 is attached. As the front end portion 41, the plurality of leaf spring portions 43 connecting the front end portion 41 and the rear end portion 42, and the plurality of leaf spring portions 43, the leaf spring portion 43 is attached to the push rod 50. An internal thread protrusion 44 that meshes with the external thread 51 by bending toward the outside is provided.

  The screw spring 40 is formed by bending an extremely thin stainless steel band for a spring. Thereby, durability and restoring property of the screw spring 40 are ensured, and the cartridge-type cosmetic container 100 can be used for a long time. Alternatively, the screw spring 40 can be formed of other materials such as resin.

  The front end portion 41 is formed in an annular shape. The outer diameter of the front end portion 41 is formed smaller than the inner diameter of the front cavity portion 36 of the main body inner cylinder 30. In the center of the front end portion 41, a through hole 41a is formed through which the rod shaft 55 of the push rod 50 can advance and retreat. A rear end surface 26 (see FIG. 2B) of the cartridge body 2 attached to the main body cylinder 4 is in contact with the front end portion 41. The screw spring 40 contracts when the cartridge body 2 presses the front end 41 in the axial direction.

  The rear end portion 42 is formed in an annular shape having the same shape as the front end portion 41. The outer diameter of the rear end portion 42 is formed to be smaller than the inner diameter of the front cavity portion 36 of the main body inner cylinder 30 and larger than the inner diameter between the longitudinal ribs 38 formed in the front cavity portion 36. The In the center of the rear end portion 42, a through hole 42a is formed through which the rod shaft 55 of the push rod 50 can advance and retract. The rear end portion 42 abuts on the upper end surface 35a (see FIG. 6B) of the front cavity portion 36.

  The leaf spring portion 43 bends toward the inner circumference when contracted in the axial direction. Specifically, as shown in FIG. 9B, the leaf spring portion 43 is curved toward the inner periphery when pressed in the axial direction. Instead of this, the leaf spring portion 43 may be formed to bend toward the inner periphery when pressed in the axial direction.

  The leaf spring portion 43 is twisted by rotation when the cartridge body 2 is attached to the container body 1. Specifically, the leaf spring portion 43 is arranged such that the rear end surface 26 and the front end are rotated when the cartridge body 2 is rotated relative to the main body cylinder 4 with the rear end surface 26 of the cartridge body 2 in contact with the front end portion 41. It is twisted by the frictional force with the part 41.

  The female screw protrusion 44 is provided so as to protrude inside the substantially central portion of the leaf spring portion 43 in the axial direction. The female screw protrusion 44 is parallel to the front end portion 41 and the rear end portion 42 because the leaf spring portion 43 is not twisted in a state where the cartridge body 2 is not attached.

  When the cartridge body 2 is attached, the female screw protrusion 44 meshes with the male screw 51 in a state where the leaf spring portion 43 is twisted so as to be entangled with the outer periphery of the push rod 50 by the rotation of the cartridge body 2 as shown in FIG. The female screw protrusion 44 is formed so as to be inclined in the same direction as the lead angle of the male screw 51 when the leaf spring portion 43 is twisted.

  As a result, the female screw protrusion 44 and the male screw 51 are screwed together with a strong screwing force. Therefore, even when the cosmetic 9 is in close contact with the inner periphery of the cartridge outer cylinder 20, it can be pushed out with a strong force.

  As shown in FIG. 9B, the screw spring 40 is compressed by α [mm] and twisted by θ [deg]. In addition to this, without twisting the leaf spring portion 43 of the screw spring 40, the leaf spring portion 43 is pressed in the axial direction, compressed by α [mm], and curved toward the inner periphery. In this state, the female screw protrusion 44 may be engaged with the male screw 51 for use.

  As described above, in the screw spring 40, the rear end portion 42 is supported by the main body inner cylinder 30 so as not to rotate, and the cartridge body 2 is rotated relative to the main body inner cylinder 30 so that the front end portion 41 is moved to the rear end portion. By rotating with respect to 42, the leaf spring portion 43 is twisted. As a result, the female screw protrusion 44 of the leaf spring portion 43 meshes with the male screw 51 of the push bar 50.

  When the cartridge body 2 is removed from the main body cylinder 4, the female screw protrusion 44 is separated from the male screw 51 because the leaf spring portion 43 is restored to the original shape (the state shown in FIG. 9A). Thereby, the meshing of the female screw protrusion 44 and the male screw 51 is released.

  The female screw protrusion 44 may be provided in one of the plurality of leaf spring portions 43. However, when the pair of leaf spring portions 43 are provided to face each other as in the present embodiment, both leaf springs are provided. It is desirable to form the part 43. Moreover, the leaf | plate spring part 43 is not restricted to a pair, Any number may be sufficient if it is plurality.

  In addition, the screw spring 40 is not fixed upside down. Therefore, the screw spring 40 is accommodated in the front cavity portion 36 such that the front end portion 41 abuts on the upper end surface 35 a of the front cavity portion 36 and the rear end portion 42 abuts on the rear end surface 26 of the cartridge body 2. May be. In this case, the front end portion 41 corresponds to the first flat plate portion, and the rear end portion 42 corresponds to the second flat plate portion.

  Next, the attachment of the cartridge body 2 to the main body cylinder 4 will be described mainly with reference to FIG. FIG. 11 is a development view of the main body inner cylinder 30. Illustrated in FIG. 11 is the inner peripheral surface of the main body inner cylinder 30.

  First, the cartridge body 2 is brought close to the main body inner cylinder 30, and the engaging protrusion 27 is positioned at the end of the main body inner cylinder 30 (state I in FIG. 11). When the cartridge body 2 is pushed as it is and is relatively rotated by about ¼ rotation around the center axis with respect to the main body inner cylinder 30, the engagement protrusion 27 is inserted into the thin portion 39b and the front portion of the main body inner cylinder 30 It is inserted into the inner periphery of the cavity 36 (state II in FIG. 11). At this time, since the guide portion 39 is formed thicker than the thin portion 39 b, the lower tapered surface 27 c of the engagement protrusion 27 contacts the guide portion 39, and the cartridge body 2 is in front of the main body inner cylinder 30. Guided to the back of the cavity 36.

  When the cartridge body 2 is further rotated relative to the main body inner cylinder 30 by a little less than about 1/4 rotation, the upper tapered surface 27d of the engagement protrusion 27 is formed on the corner 39a of the guide portion 39 of the main body inner cylinder 30. Contact (state III in FIG. 11). When the relative rotation is further continued as it is, the engagement protrusion 27 gets over the corner 39a by the upper tapered surface 27d, and the contact surface 27a of the engagement protrusion 27 and the contact surface 32a of the engagement groove 32 contact each other. At this time, the convex part 27b of the contact surface 27a is engaged with the concave part 32b of the contact surface 32a (state IV in FIG. 11). Thereby, the engagement protrusion 27 and the engagement groove 32 are engaged in the axial direction and the circumferential direction.

  At this time, the cartridge body 2 is urged in the axial direction by the restoring force of the screw spring 40. This urging force acts on the wall surface between the upper end portion 30 a of the main body inner cylinder 30 and the contact surface 32 a of the engagement groove 32. The screw spring 40 is accommodated in the front cavity 36 in a twisted state. Therefore, it is urged in the circumferential direction by the restoring force of the screw spring 40. This urging force acts between the concave portion 32b of the contact surface 32a and the convex portion 27b of the contact surface 27a.

  Here, a male screw is formed on the outer periphery of the fitting portion 25 of the cartridge body 2, a female screw is formed on the inner periphery of the front cavity portion 36 of the main body inner cylinder 30, and the cartridge body 2 is screwed into the main body cylinder 4. Compare with installation.

  The cartridge body 2 attached to the main body cylinder 4 is urged in the axial direction by the restoring force of the screw spring 40. In the case of the present embodiment, the cartridge body 2 is always urged by about 2 kg in the direction of being removed from the main body cylinder 4. Therefore, when the cartridge body 2 is attached by being screwed to the main body cylinder 4, a biasing force acts between the male screw and the female screw, which may cause a problem in durability.

  On the other hand, in the cartridge type cosmetic container 100, the contact surface 27a and the contact surface 32a contact each other, thereby receiving an urging force in the axial direction due to the restoring force of the screw spring 40. Therefore, it is possible to receive an urging force in the axial direction by the screw spring 40 depending on the height of the wall surface between the upper end portion 30 a of the main body inner cylinder 30 and the contact surface 32 a of the engagement groove 32.

  Moreover, the urging force in the circumferential direction by the screw spring 40 is a small force compared to the urging force in the axial direction. The concave portion 32b is formed so that the entire surface of the contact surface 32a is concave, and the convex portion 27b is formed so that the entire surface of the contact surface 27a is convex. Therefore, the concave portion 32b and the convex portion 27b are durable. High nature. Therefore, it is possible to receive the urging | biasing force to the circumferential direction by the screwing spring 40 by engagement with the recessed part 32b of the contact surface 32a, and the convex part 27b of the contact surface 27a.

  Therefore, durability can be improved compared with the case where the cartridge body 2 is screwed onto the main body cylinder 4 and attached.

  Next, the operation of the cartridge type cosmetic container 100 will be described mainly with reference to FIGS. 1, 12, and 13.

  FIG. 1 shows a state before use of the cartridge-type cosmetic container 100. In FIG. 1, the push rod 50 is located at the feeding and retreating limit. At this time, the screw spring 40 is pressed in the axial direction by the cartridge body 2 attached to the main body cylinder 4. Therefore, the pair of leaf spring portions 43 of the screw spring 40 are bent toward the inner periphery, and the female screw protrusion 44 provided on the leaf spring portion 43 is engaged with the male screw 51 of the push rod 50.

  From this state, when the user removes the cap 3 and rotates the driving body 60 with respect to the main body cylinder 4, the push rod 50 moves forward due to the engagement between the female screw protrusion 44 and the male screw 51. Thereby, the cosmetic 9 can be used by advancing from the tip opening hole 21a of the cartridge outer cylinder 20.

  At this time, the cosmetic 9 is in close contact with the inner peripheral wall 21b, and the pin 80 and the protrusion 81a are caught by the cosmetic 9, and the outer peripheral wall 11a of the holding member main body 11 and the inner peripheral wall 21b of the cartridge outer cylinder 20 are retained. Abut against each other and act as a rotation stopper. Therefore, the cosmetic 9 is prevented from rotating inside the through hole 21c due to the relative rotation of the magnet 6 and the magnet 52 around the central axis when the cosmetic 9 is extended and returned.

  Further, when the user rotates the driving body 60 in the opposite direction with respect to the main body cylinder 4, the push rod 50 moves backward due to the engagement between the female screw protrusion 44 and the male screw 51. At this time, the magnet 6 of the holding member 10 and the magnet 52 of the push rod 50 are attracted to each other. Therefore, when the push rod 50 is retracted, the holding member 10 is also retracted, and the cosmetic 9 is fed back. Thus, in the cartridge-type cosmetic container 100, the magnet 6 and the magnet 52 are provided, so that the cosmetic 9 can be fed as well as fed out.

  When the user continues to rotate the driving body 60 further in the direction in which the cosmetic 9 is fed out of the main body cylinder 4, as shown in FIG. 12, the push rod 50 is fed out to the feeding advance limit. The advancement limit is defined by the stroke end of the male screw 51 formed on the rod shaft 55 of the push rod 50. Even if the user further rotates the driving body 60 with respect to the main body cylinder 4 from the state shown in FIG. 12, the male screw 51 rotates idly because the female screw protrusion 44 is expanded by the elasticity of the leaf spring portion 43. Therefore, the push rod 50 does not stroke any more.

  At this time, in the cartridge body 2, the holding member 10 has moved to the forward end. Therefore, most of the cosmetic 9 is pushed out from the tip opening hole 21a, and the cosmetic 9 needs to be replaced.

  In the state shown in FIG. 12, when the cartridge body 2 is rotated with respect to the main body cylinder 4 to remove the cartridge body 2 from the main body cylinder 4, the cartridge body 2 is separated from the main body cylinder 4. Thereby, as shown in FIG. 13, the screwing spring 40 is extended in the axial direction by the restoring force and restored to the original state. Accordingly, the pair of leaf spring portions 43 are separated from each other, and the meshing between the female screw projection 44 of the screw spring 40 and the male screw 51 of the push bar 50 is released. Therefore, the push rod 50 can freely move in the axial direction.

  When the cartridge body 2 is to be removed, since the magnet 6 and the magnet 52 are attracted to each other, the push rod 50 is also pulled out together. However, when the push rod 50 is to be extracted, the large diameter portion 54 of the push rod 50 comes into contact with the lower end surface 35 b of the partition wall 35 of the main body inner cylinder 30. Therefore, when pulled as it is, the magnet 6 and the magnet 52 are separated from each other, and the push rod 50 is detached from the holding member 10. Accordingly, the push bar 50 moves to its pay-out retreat limit by its own weight in a state close to being upright.

  Further, a holding member retaining portion 28 is formed at the rear end of the fitting portion 25 of the cartridge outer cylinder 20. The holding member 10 is prevented from coming out of the rear end of the cartridge outer cylinder 20 by contacting the holding member retaining portion 28. Therefore, when the cartridge body 2 is to be removed, the holding member 10 is prevented from coming off from the cartridge outer cylinder 20.

  As described above, when the cartridge body 2 is removed by providing the screw spring 40, the engagement between the female screw protrusion 44 of the screw spring 40 and the male screw 51 of the push rod 50 is released, and the push rod 50 is moved in the axial direction. It can move freely. Therefore, when the cartridge body 2 is removed, the mechanism for moving the push bar 50 to the payback limit can be simplified, and the certainty of moving the push bar 50 to the payback limit can be improved.

  When the used cartridge body 2 is removed from the main body cylinder 4 and then a new cartridge body 2 is attached, the state shown in FIG. 1 is obtained again.

  Specifically, when the user holds the cap 3 and engages the engagement protrusion 27 of the cartridge body 2 with the engagement groove 32 of the main body inner cylinder 30, the rear end surface 26 of the cartridge body 2 and the inside of the main body The screw spring 40 is compressed between the upper end surface 35 a of the cylinder 30.

  Since the pair of leaf spring portions 43 of the screw spring 40 are curved in a drum shape toward the inner periphery, when the front end portion 41 is compressed, it is further curved and abuts against the rod shaft 55 of the push rod 50. At this time, a frictional force between the rear end surface 26 of the cartridge body 2 acts on the front end portion 41 of the screw spring 40. Therefore, the leaf spring portion 43 of the screw spring 40 is twisted so as to be entangled with the outer periphery of the push rod 50, and the female screw protrusion 44 is engaged with the male screw 51 of the push rod 50.

  According to the above embodiment, the following effects are obtained.

  By providing the screw spring 40, when the cartridge body 2 is removed, the engagement between the female screw protrusion 44 of the screw spring 40 and the male screw 51 of the push bar 50 is released, and the push bar 50 can be freely moved in the axial direction. Become. Therefore, when the cartridge body 2 is removed, the mechanism for moving the push bar 50 to the payback limit can be simplified, and the certainty of moving the push bar 50 to the payback limit can be improved.

  Further, when the user rotates the driving body 60 in the opposite direction with respect to the main body cylinder 4, the push rod 50 moves backward due to the engagement between the female screw protrusion 44 and the male screw 51. At this time, the magnet 6 of the holding member 10 and the magnet 52 of the push rod 50 are attracted to each other. Therefore, when the push rod 50 is retracted, the holding member 10 is also retracted, and the cosmetic 9 is fed back. Thus, in the cartridge-type cosmetic container 100, the magnet 6 and the magnet 52 are provided, so that the cosmetic 9 can be fed as well as fed out.

  Further, the height of the wall surface between the upper end portion 30a of the main body inner cylinder 30 and the contact surface 32a of the engagement groove 32 can receive an urging force in the axial direction by the screw spring 40. By engaging the concave portion 32b of the contact surface 32a and the convex portion 27b of the contact surface 27a, it is possible to receive a biasing force in the circumferential direction by the screw spring 40. The durability can be improved as compared with the case of attaching them together.

  Further, as in the modified example shown in FIG. 14, when the cartridge body 2 is removed from the main body cylinder 4, the push rod 50 may be forcibly moved to the extended retreat limit.

  In this modification, there is provided a return spring 5 that pushes the push rod 50 toward the retreating limit when the cartridge body 2 is detached from the main body cylinder 4 and the engagement between the female screw projection 44 and the male screw 51 is released.

  The return spring 5 is a coil spring that is housed between the lower end surface 35 b of the partition wall 35 of the main body inner cylinder 30 and the front end surface 54 a of the large-diameter portion 54 of the push rod 50. The return spring 5 is compressed when the push bar 50 is unwound. When the engagement between the female thread projection 44 of the screw spring 40 and the male thread 51 of the push bar 50 is released, the return spring 5 pushes back the push bar 50 by its urging force and moves it to the extended retreat limit.

  As a result, when the cartridge body 2 is removed from the main body cylinder 4, the push rod 50 is always located at the extended retreat limit by the urging force of the return spring 5. At this time, the push rod 50 is pulled from the main body cylinder 4 when the cartridge body 2 is detached from the main body cylinder 4 by adjusting the magnitudes of the biasing force of the return spring 5 and the attractive force of the magnet 6 and the magnet 52. It can be set not to be issued.

  Even if the cartridge body 2 is not mounted, the push rod 50 is restrained in the axial direction, so that it cannot be freely advanced and retracted. Therefore, it is possible to prevent the push bar 50 from advancing against the user's intention.

  By providing the return spring 5, when the push bar 50 moves to the advance advance limit, a clutch sound is generated to inform the user that the push bar 50 is not further extended. Specifically, when the user tries to extend the push rod 50 in the advancement limit of the push rod 50, the female screw protrusion 44 rides on a portion of the rod shaft 55 where the male screw 51 is not formed. When the user tries to further extend the push rod 50, the female screw protrusion 44 is pushed back to the rear end portion of the male screw 51 and meshes with the restoring force of the return spring 5. At this time, a sound is generated by contact between the female screw protrusion 44 and the male screw 51.

  Thereby, the user can know that the push rod 50 is located in the payout ascent limit. Therefore, the user can use the generation of the clutch sound as a guide for replacing the cartridge body 2.

  Next, the cartridge body 102 according to the first modification and the cartridge body 202 according to the second modification will be described with reference to FIGS. 15 and 16.

  As shown in FIG. 15, the cartridge body 102 includes a cartridge outer cylinder 120 filled with cosmetics (not shown) on the inner periphery, a holding member 110 that can slide in the cartridge outer cylinder 120 in the axial direction, and the cartridge. A cap (not shown) attached to the outer cylinder 120.

  As shown in FIG. 15B, the cartridge outer cylinder 120 includes an elliptical through hole 121c. Further, as shown in FIG. 15D, the outer peripheral wall 111a of the holding member 110 is also formed in an elliptical shape in accordance with the shape of the through hole 121c. Therefore, the cosmetic filled in the cartridge body 102 has an elliptical cross-sectional shape.

  As shown in FIG. 16, the cartridge body 202 includes a cartridge outer cylinder 220 whose inner periphery is filled with cosmetics (not shown), a holding member 210 that can slide in the cartridge outer cylinder 220 in the axial direction, and the cartridge. A cap (not shown) attached to the outer cylinder 220.

  As shown in FIG. 16B, the cartridge outer cylinder 220 includes a through hole 221c formed in a heart shape. In addition, as shown in FIG. 16D, the outer peripheral wall 211a of the holding member 210 is also formed in a heart shape in accordance with the shape of the through hole 221c. Therefore, the cosmetic filled in the cartridge body 202 has a heart-shaped cross-sectional shape.

  In the cartridge bodies 102 and 202, the cosmetic material is less likely to rotate with respect to the through holes 121c and 221c than the cartridge body 2 in which the cosmetic material 9 has a circular cross-sectional shape. Therefore, the cosmetics are more difficult to rotate inside the through holes 121c and 221c when being fed out and fed back. In addition, the elliptical through-hole 121c and the heart-shaped through-hole 221c are examples, and it is possible to form the through-holes in various shapes.

  Next, with reference to FIGS. 17 to 19, the holding member 310 according to the first modification, the holding member 410 according to the second modification, and the holding member 510 according to the third modification, respectively. explain.

  As shown in FIG. 17A, the holding member 310 does not include the pin 80 unlike the holding member 10, and the bottom surface 317 is formed to a thickness that allows the magnet 6 to be inserted. In this case, since the bottom surface 317 of the holding member 310 is formed flat, it is possible to hold the cosmetic of the molded core that is inserted after being previously formed into a rod shape.

  As shown in FIG. 17B, the holding member 310 has a magnet holding portion 318 that is formed in a concave shape in the axial direction from the rear end portion of the bottom surface 317. The magnet 6 is fixed to the magnet holding portion 318 in a non-rotatable manner by adhesion, welding, or pressing. Further, as shown in FIG. 17C, the holding member 310 has a metal plate holding portion 314 that can hold the metal plate 106. Therefore, similarly to the holding member 10, the holding member 310 can also include the metal plate 106 instead of the magnet 6.

  As shown in FIGS. 18A and 18B, the holding member 410 includes a holding member main body 411 formed in a cylindrical shape, a pin 80 attached to the holding member main body 411, and a cosmetic (not shown) on the bottom plate 412. ) Is provided with a metal plate holding portion 414 as a metal body holding portion formed in a concave shape in the axial direction from the surface on the opposite side to the surface on which is positioned.

  The inner diameter of the metal plate holding part 414 is formed larger than the outer diameter of the metal plate 106. Therefore, the metal plate 106 can rotate around the central axis in the metal plate holding portion 414. An annular metal plate retaining portion 416 that prevents the metal plate 106 held by the metal plate holding portion 414 from coming off in the axial direction is formed on the inner periphery of the lower end surface 411b of the holding member 410.

  The metal plate retaining portion 416 protrudes in an annular shape from the rear end of the holding member main body 411 toward the inner periphery along the rear end surface 415. Further, the metal plate holding portion 414 is formed with an annular annular convex portion 417 formed to protrude in the axial direction from the bottom plate 412 toward the rear end.

  Thereby, the metal plate 106 contacts only with the annular convex portion 417 when the cosmetic 9 is fed out, and contacts only with the metal plate retaining portion 416 when the cosmetic 9 is fed back. Thus, the metal plate 106 can rotate with respect to the holding member main body 411 because the sliding resistance at the time of extension and retraction is small.

  Therefore, when the holding member 410 is applied to the cartridge-type cosmetic container 100, the metal plate 106 and the magnet 52 do not rotate relative to each other when the cosmetic 9 is fed out and fed back, and the magnet 52 and the metal plate 106 are not rotated. And rotate relative to the holding member main body 411. At this time, the pin 80 attached to the holding member main body 411 prevents the cosmetic 9 from coming off the holding member 410. Further, as shown in FIG. 18C, a pin 180 that does not have the magnet holding portion 83 may be used.

  Note that, as in the holding member 510 shown in FIGS. 19A and 19B, only the metal plate 106 may be held without providing the pin 80 that can hold the magnet 6. In this case, like the holding member 310 shown in FIG. 17, the holding member 510 has a flat bottom surface 317, so that it is possible to hold a cored cosmetic that is inserted after being previously formed into a rod shape. It is.

  The embodiment of the present invention has been described above. However, the above embodiment only shows a part of application examples of the present invention, and the technical scope of the present invention is limited to the specific configuration of the above embodiment. Absent.

  For example, in the above embodiment, the engagement protrusion 27 is formed in the insertion portion 25 of the cartridge body 2, and the engagement groove 32 is formed in the main body inner cylinder 30. Instead of this, an engagement groove may be formed in the insertion portion of the cartridge body 2, and an engagement protrusion protruding in the radial direction may be formed on the inner periphery of the main body inner cylinder 30. That is, an engagement protrusion may be formed on one of the fitting portion 25 and the main body inner cylinder 30, and an engagement groove may be formed on the other.

  In the above embodiment, the concave portion 32 b is formed on the contact surface 32 a of the engagement groove 32, and the convex portion 27 b is formed on the contact surface 27 a of the engagement protrusion 27. Instead, a convex portion may be formed on the contact surface of the engagement groove 32, and a concave portion may be formed on the contact surface 27 a of the engagement protrusion 27. That is, it is only necessary that a convex portion is formed on one contact surface of the engaging groove 32 and the engaging protrusion 27 and a concave portion is formed on the other.

DESCRIPTION OF SYMBOLS 100 Cartridge type cosmetic container 1 Container main body 2 Cartridge body 4 Main body cylinder 5 Return spring 6 Magnet 10 Holding member 11 Holding member main body 12 Bottom plate 14 Metal plate holding part (metal body holding part)
20 Cartridge outer cylinder 21 Cosmetic holding part 21a Tip opening hole 25 Insertion part 27 Engagement protrusion 27a Contact surface 27b Recess 30 Body cylinder 40 Screw spring 41 Front end part (second flat plate part)
42 Rear end (first flat plate part)
43 leaf spring portion 44 female screw projection 50 push rod 51 male screw 52 magnet 55 rod shaft 55a magnet holding portion 60 driving body 70 main body outer cylinder 80 pin 83 magnet holding portion 102 cartridge body 106 metal plate (metal body)

Claims (9)

A cartridge type cosmetic container comprising a cartridge body filled with a cosmetic and a container body to which the cartridge body is attached,
The cartridge body is
A cartridge outer cylinder filled with cosmetics on the inner periphery;
A holding member located at the rear end of the cosmetic and slidable in the axial direction in the cartridge outer cylinder,
The container body is
A main body cylinder to which the cartridge body is detachably attached;
A driving body attached coaxially to the main body cylinder and relatively rotatable;
A push rod whose tip abuts on the holding member and has a male screw formed on the outer periphery thereof and moves in the axial direction by relative rotation of the main body cylinder and the drive body;
A screw spring accommodated in the main body cylinder and contracted in the axial direction by the attachment of the cartridge body,
One of the holding member and the push rod is provided with a first magnet, and the other of the holding member and the push rod is provided with a metal body or the first magnet that is attracted to the first magnet. A second magnet is attached to each other,
The screw spring is
A first flat plate portion whose axial position is defined in the main body cylinder;
A second flat plate portion that is close to the first flat plate portion by attaching the cartridge body;
A plurality of leaf spring portions that connect the first flat plate portion and the second flat plate portion and bend toward the inner periphery when contracted in the axial direction;
A cartridge-type cosmetic container, comprising: a female screw protrusion provided on at least one of the plurality of leaf spring portions and meshing with the male screw when the leaf spring portion is bent. The first magnet is fixed to one of the holding member and the push rod so as not to rotate,
The cartridge-type cosmetic container according to claim 1, wherein the metal body or the second magnet is fixed to the other of the holding member and the push rod so as not to rotate. The holding member has a pin that is formed to protrude in the axial direction from the central portion in the radial direction and the tip portion is inserted into the cosmetic;
The first magnet is fitted into a magnet holding portion formed in a concave shape in the axial direction from the rear end portion of the pin,
The cartridge-type cosmetic container according to claim 1 or 2, wherein the metal body or the second magnet is attached to the push bar. The holding member has a metal body holding portion formed in a concave shape in the axial direction from the surface opposite to the surface on which the cosmetic is located,
The metal body is inserted into the metal body holding portion,
The cartridge-type cosmetic container according to claim 1 or 2, wherein the first magnet is attached to the push rod. The cartridge outer cylinder has a fitting portion that is fitted into the main body cylinder when attached to the main body cylinder,
One of the fitting portion and the main body cylinder has an engagement protrusion protruding in a radial direction,
The other of the fitting portion and the main body cylinder has an engaging groove that is engaged with the engaging protrusion in the axial direction and the circumferential direction when the cartridge body is attached to the container body. The cartridge type cosmetic container according to any one of claims 1 to 4. The cartridge body is urged in the axial direction by the restoring force of the screw spring,
6. The cartridge type cosmetic container according to claim 5, wherein each of the engagement groove and the engagement protrusion has an abutment surface that abuts when the cartridge body is urged. A convex portion protruding in the axial direction is formed on one of the contact surfaces of the engagement groove and the engagement protrusion,
On the other contact surface of the engagement groove and the engagement protrusion, an engagement recess for restricting relative movement in the circumferential direction between the fitting portion and the main body cylinder in a state where the protrusion is engaged. The cartridge type cosmetic container according to claim 6, wherein:   8. The structure according to claim 1, wherein when the cartridge body is removed from the main body cylinder, the leaf spring portion is restored to its original shape, and the engagement between the female screw protrusion and the male screw is released. The cartridge type cosmetic container according to any one of the above.   9. The apparatus according to claim 8, further comprising a return spring that pushes back the push bar toward the retreating limit when the cartridge body is detached from the main body cylinder and the engagement between the female screw protrusion and the male screw is released. The cartridge-type cosmetic container as described.

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