JP2017153868A - Beauty appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beauty appliance that can prevent a rotating body from coming out of a support shaft at an unexpected timing while reducing looseness of the rotating body.SOLUTION: In a beauty appliance 1, a connecting member 40 has a base end 20a mounted in a support shaft 20 fixed to a handle 12 in a coming-out prevention state, and a locking claw 42 projected in the radially outward direction Y1 and capable of being displaced in the radial direction. A rotating body 27 has a stepped part 272 capable of being engaged to a locking claw 42 from a base end side L1a. The locking claw 42 has a first facing surface 421 inclined toward a tip side L1b as going to a radially outward direction Y1 on a face of the base end side L1a, and a second facing surface 422 positioned further in the radially outward direction Y1 of the first facing surface 421. An angle β of the tip side L1b of the angles formed by a virtual straight line VLb parallel to a second facing surface 422 and a support shaft 20 is larger than an angle α of the tip side L1b of the angles formed by a virtual straight line VLa parallel to the first facing surface 421 and the support shaft 20.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a cosmetic device.

  2. Description of the Related Art Conventionally, there is a cosmetic device that exerts a cosmetic effect by pressing the skin with a rotating body that is rotatably supported by a support shaft. For example, in Patent Document 1, a handle, a support shaft having a base end attached to the handle, a cylindrical connection member attached in a state of being prevented from being detached from the support shaft, and a rotatable via the connection member A cosmetic device including a supported rotating body is disclosed. The connecting member is formed with a locking claw protruding in the radial direction of the support shaft, and the rotating body is prevented from coming off by engaging the locking claw with a step portion formed inside the rotating body. Has been. In such a configuration, the entire area of the engaging claw facing the stepped portion is inclined away from the handle as it goes in the protruding direction of the engaging claw, and absorbs the dimensional tolerance of the rotating body and the engaging claw. As a result, the rotating body is less likely to rattle.

JP 2013-236650 A

  However, in the above configuration, since the entire area of the engaging claw facing the stepped portion is inclined as described above, the stepped portion of the rotating body is opposed when a force is applied to the rotating body in the direction away from the support shaft. It moves along the inclination of the part, and it is easy to get over the locking claw. Therefore, there is a problem that when the cosmetic device is dropped and an excessive force is applied to the rotating body in the direction of coming off from the support shaft, the rotating body may come off from the support shaft at an unexpected timing.

  The present invention has been made in view of such a background, and intends to provide a cosmetic device capable of preventing the rotating body from coming off the support shaft at an unexpected timing while reducing rattling of the rotating body. Is.

One aspect of the present invention includes a handle, a support shaft having a base end fixed to the handle, a connection member attached to the support shaft in a state in which the handle is secured to the support shaft, and the support shaft via the connection member. A cosmetic device having a rotating body rotatably supported together with the connecting member,
The connecting member has a cylindrical bearing portion through which the support shaft is inserted, and a locking claw that protrudes radially outward and is displaceable in the radial direction,
The rotating body has a space in which the coupling member is inserted and arranged, and the locking claw is formed on an inner wall surface of the space from a proximal end side of the support shaft toward a distal end side opposite to the proximal end side. Has a stepped portion engageable with,
The locking claw is inclined on the surface on the base end side of the support shaft so as to go to the distal end side of the support shaft toward the outer side in the radial direction, and a first facing surface facing the stepped portion. And a second facing surface that is located further radially outward of the first facing surface and faces the stepped portion,
Of the angles formed by the support shaft and an imaginary straight line extending in parallel with the second facing surface from the second facing surface toward the supporting shaft, the angle on the tip side of the supporting shaft is the first angle. The cosmetic device has a larger angle than an angle between the support shaft and a virtual straight line extending in parallel with the first facing surface from the facing surface toward the support shaft and the angle between the support shaft and the support shaft. .

  According to the cosmetic device, the locking claw can be engaged with the stepped portion of the rotating body, and the first facing surface and the second facing surface that face the stepped portion are formed on the base end side surface of the support shaft. Have. The first facing surface is inclined so as to go to the tip end side of the support shaft as it goes outward in the radial direction. For this reason, when the dimension variation of the stepped portion and the locking claw is relatively large and the dimension becomes larger than the reference dimension, the locking claw comes into contact with the first opposing surface, so that the locking claw is radially inward. And can be displaced radially inward. Thereby, the dimension variation of a level | step-difference part and a latching nail | claw is absorbed, and the shakiness of a rotary body is reduced. Note that the stepped portion and the locking claw do not necessarily need to contact each other in the assembled state. Even when the two are not in contact, the gap between the two provided in consideration of the dimensional variation of the stepped portion and the locking claw can be minimized, so that the backlash of the rotating body may become excessively large. Is prevented.

  Furthermore, the 2nd opposing surface in a latching nail | claw is located in the radial direction further outside of the 1st opposing surface. And the angle | corner of the front end side of a support shaft among the angles which the virtual straight line extended in parallel with this 2nd opposing surface toward the support shaft from the 2nd opposing surface and a support shaft is 1st opposing surface From the angle formed by the imaginary straight line extending in parallel with the first facing surface toward the support shaft and the support shaft, it is larger than the angle on the tip side of the support shaft. That is, the second facing surface is a surface that stands more with respect to the support shaft than the first facing surface. As a result, when a force is applied to the rotating body in a direction away from the support shaft, even if the stepped portion gets over the first opposing surface, it becomes difficult to get over the second opposing surface. Therefore, at an unexpected timing, it is possible to prevent the stepped portion of the rotating body from getting over the locking claw and the engagement between the stepped portion and the locking claw being released, so that the rotating body is not detached from the support shaft.

  As described above, according to the present invention, it is possible to provide a cosmetic device that can prevent the rotating body from coming off the support shaft at an unexpected timing while reducing the backlash of the rotating body.

FIG. 3 is a front view of a cosmetic device according to the first embodiment. FIG. 2 is a partial cross-sectional view taken along the line II-II in FIG. 1. FIG. 3 is a sectional view taken along line III-III in FIG. 1. FIG. 4 is a sectional view taken along line IV-IV in FIG. 1. FIG. 3 is a partially enlarged view of the base body in the first embodiment. The perspective view of the connection member in Example 1. FIG. The side view of the connection member in Example 1. FIG. VIII-VIII line position sectional drawing in FIG. FIG. 5 is a partially enlarged view of the vicinity of the locking portion in FIG. 4. The partial enlarged view of the latching part vicinity in the state before attaching a rotary body to a connection member in a modification.

  Of the angles formed by the imaginary straight line and the support shaft on the second facing surface, the angle on the tip side of the support shaft is preferably a right angle. In this case, when the stepped portion gets over the first facing surface by applying a force toward the rotating body from the support shaft, that is, the tip side of the support shaft, the stepped portion becomes the second facing surface. It becomes easy to get caught in contact with the surface. Therefore, it is possible to further prevent the stepped portion from getting over the locking claw and further improve the effect of preventing the rotating body from coming off.

  The connecting member has a cantilever portion having a cantilever shape in which a distal end portion of the support shaft is fixed and a proximal end portion of the support shaft is a free end. It is preferable that the engaging claw is formed at an end portion of the supporting shaft in the proximal end side of the support shaft. In this case, the locking claw can be configured to be displaceable in the radial direction with a simple configuration.

  At least one of the surface on the distal end side of the support shaft in the locking claw and the surface on the proximal end side of the support shaft in the stepped portion is directed toward the proximal end side of the support shaft as it goes radially outward. It is preferable that an inclined surface that is inclined is formed. In this case, when the connecting member is inserted and arranged in the space of the rotating body, the stepped portion and the locking claw abut through the inclined surface and the locking claw is pressed radially inward, The engaging claw will be displaced radially inward. As a result, the stepped portion climbs over the engagement claw toward the base end side of the support shaft, and can engage with the engagement claw from the base end side. With such a configuration, it is possible to secure the effect of preventing the removal by the engaging claws while facilitating the attachment of the rotating body.

Example 1
An embodiment of the cosmetic device will be described with reference to FIGS.
As shown in FIGS. 1 and 4, the cosmetic device 1 of this embodiment includes a handle 12, a support shaft 20, a connecting member 40, and a rotating body 27.
As shown in FIG. 4, the support shaft 20 has a proximal end 20 a fixed to the handle 12.
The connecting member 40 is attached to the support shaft 20 in a state of being prevented from coming off.
The rotating body 27 is rotatably supported by the support shaft 20 together with the connecting member 40 via the connecting member 40.

And as shown in FIG. 4, the connection member 40 has the bearing part 41 by which the support shaft 20 is penetrated, and the latching claw 42 which can be displaced to radial direction Y while projecting radially outward Y1. .
The rotating body 27 has a space 271 in which the connecting member 40 is inserted and arranged, and the inner wall surface of the space 271 has a distal end side opposite to the proximal side L1a, L2a from the proximal side L1a, L2a of the support shaft 20. There is a stepped portion 272 that can be engaged with the locking claw 42 toward L1b and L2b.
As shown in FIG. 9A, the locking claws 42 are inclined on the surfaces of the base end sides L1a and L2a of the support shaft 20 so as to go to the distal end side L1b toward the radially outer side Y1. And a second opposing surface 422 that is located further radially outward Y1 of the first opposing surface 421 and that faces the stepped portion 272. Further, the locking claw 42 is inclined on the surfaces of the distal end sides L1b and L2b of the support shaft 20 so as to incline toward the proximal ends L1a and L2a of the support shaft 20 toward the radially outer side Y1. Have
Then, the tip side L1b, L2b of the support shaft 20 out of the angle formed by the imaginary straight line VLb extending in parallel with the second facing surface 422 from the second facing surface 422 toward the supporting shaft 422 and the supporting shaft 20 The angle β is the tip side L1b of the support shaft 20 among the angles formed by the virtual axis VLa extending in parallel to the first facing surface 421 from the first facing surface 421 toward the support shaft 20 and the support shaft 20, It is larger than the angle α of L2b.

The cosmetic device 1 of the present embodiment will be described in detail below.
As shown in FIGS. 1 and 2, the beauty machine 1 includes a handle 12 having a substantially rod-shaped gripping portion 12 b and a bifurcated portion 12 a formed at the tip thereof. As shown in FIGS. 2 to 4, the handle 12 is composed of a base body 13 made of synthetic resin, and a pair of first cover body 14 and second cover body 15 covered on the outer periphery of the base body 13. Yes. The 1st cover body 14 and the 2nd cover body 15 are formed with a synthetic resin, and the electroconductive metal plating as a electroconductive part is given to the outer surface. The first cover body 14 is fixed to the base body 13 with screws 16, and the second cover body 15 is fitted on the outer peripheral edge of the first cover body 14.

  As shown in FIGS. 2 to 4, a ring-shaped packing 17 is integrated and fixed to the entire outer peripheral edge of the base body 13 by two-color molding. On the packing 17, a lip portion 17 a that can be engaged with the inner periphery of the opening of the first cover body 14 is formed. Then, the first cover body 14 and the second cover body 15 are attached to the base body 13, and the lip portion 17 a of the packing 17 is pressed against the inner peripheral edge of the opening of the first cover body 14. Intrusion of water into the inside of the handle 12 from the gap between the first cover body 15 and the second cover body 15 is prevented. This prevents water from reaching the electrical components provided on the base body 13 inside the handle 12.

  As shown in FIG. 5, in the bifurcated portion 12a of the handle 12, a pair of support cylinders 18 are formed on the base body 13 so as to be positioned on the axis lines L1 and L2. The axes L1 and L2 intersect each other. As shown in FIG. 4, a pair of metal support shafts 20 are positioned on the axis lines L <b> 1 and L <b> 2 via the seal ring 21 and protrude outwardly on the support cylinder 18 of the base body 13. The mating is supported. The seal ring 21 prevents water from entering from the periphery of the support shaft 20 toward the inside of the handle 12.

  As shown in FIGS. 4 and 5, on the axis lines L1 and L2 of the support shaft 20, the side closer to the handle 12 is set as the base end side L1a and L2a, and the side away from the handle 12 is set as the tip end side L1b and L2b. As shown in FIG. 4, the base end side L1a of the support shaft 20 is provided with a constricted portion 20b having a reduced diameter, and the base end side L1a of the constricted portion 20b has a diameter larger than that of the constricted portion 20b. A retaining head 20a is formed. As shown in FIG. 5, a holder 22 is disposed on the base body 13 between a pair of support cylinders 18. As shown in FIG. 4, substantially cylindrical pressing portions 22 a for pressing the constricted portion 20 b of the support shaft 20 are formed at both ends of the holder 22. As shown in FIG. 5, a cylindrical screwing portion 22 b is formed in the intermediate portion of the holder 22. Then, in a state where the constricted portions 20b of the two support shafts 20 are pressed by the holding portions 22a at both ends of the holder 22, the intermediate screwing portions 22b of the holder 22 are attached to the base body 13 by screws 23 as shown in FIG. It is fixed. Thereby, each support shaft 20 is supported in a state of being fitted to the support cylinder 18 of the base body 13 and is prevented from coming off.

  When the support shaft 20 is assembled to the handle 12, the support shaft 20 is fitted into the pair of support cylinders 18 formed on the base body 13 from the outside (left side in FIG. 4). Arrange it so that it is on top. Next, as shown in FIGS. 4 and 5, the holder 22 is arranged between the base ends of the both support shafts 20 on the base body 13, and the constricted portions 22 b of both the support shafts 20 are pressed by the pressing portions 22 a of the holder 22. . As a result, as shown in FIG. 4, the retaining head 20a at the base end of each support shaft 20 is engaged with the end edge of the pressing portion 22a. In this state, as shown in FIG. 2, by fixing the screwing portion 22 b of the holder 22 to the base body 13 with the screw 23, the pair of support shafts 20 are fixed to the base body 13 so as not to be detached.

  As shown in FIG. 4, a cylindrical cap 24 made of synthetic resin is fitted on the outer periphery of the tip of the bifurcated portion 12 a of the handle 12. By fitting the cap 24, the tip of the bifurcated portion 12a is sealed, and the support shaft 20 is prevented from rattling. Further, by fitting the cap 24, electrical insulation between the outer surface of the bifurcated portion 12a of the handle 12 and the outer surface of the rotating body 27 described later is secured.

  As shown in FIG. 4, a connecting member 40 is attached to the distal end side L <b> 1 b of the support shaft 20. The connecting member 40 is made of synthetic resin and has a cylindrical shape having a substantially columnar through hole 48 as shown in FIG. As shown in FIG. 4, the connecting member 40 has a front end 20 c on the front end side L <b> 1 b of the support shaft 20 fitted therein, and a stop ring 25 attached to the front end 20 c on the front end side L <b> 1 b of the support shaft 20. It is secured. The entire outer surface including both the front and back surfaces of the connecting member 40 is plated with metal to ensure electrical conduction between the connecting member 40 and the support shaft 20. Moreover, it may replace with metal plating and may ensure both electroconductivity by comprising the connection member 40 with a conductive resin.

  As shown in FIG. 6, the connecting member 40 has a bearing portion 41 and a locking claw 42. The bearing portion 41 has a shape obtained by extracting a region of a pair of hole portions 411 located in the diameter direction and extending in the axial direction from a cylindrical shape in contact with the outer peripheral surface of the support shaft 20, and the outer peripheral surface of the support shaft 20. Is in contact with Thereby, the bearing part 41 is contacting the support shaft 20, and is supporting the rotary body 27 rotatably. Corner portions 411a of the pair of hole portions 411 are formed in a substantially arc shape. As shown in FIG. 8, the bearing portion 41 is not in contact with the outer peripheral surface of the support shaft 20 in the region where the hole portion 411 is formed, but 70 to 90% of the outer periphery of the circular support shaft 20 is the bearing portion. 41 is configured to contact 41.

  As shown in FIGS. 4, 7, and 9A, the connecting member 40 has a cantilever shape in which the end portion on the distal end side L1b is fixed and the end portion on the proximal end side L1a is a free end. A cantilever portion 43 is provided. The locking claw 42 is formed at the end portion of the base end side L1a of the cantilever portion 43 and protrudes radially outward Y1. A plurality of the locking claws 42 and the cantilever portions 43 can be provided. In this example, a pair is provided as shown in FIGS. Then, as shown in FIG. 8, the pair of locking claws 42 are on the virtual circle C centered on the axis L <b> 1 (L <b> 2) of the support shaft 20 as viewed from the distal ends L <b> 1 b and L <b> 2 b (see FIG. 7). Located at regular intervals. As shown in FIGS. 4 and 9A, the locking claw 42 is located on the distal end side L1b with respect to a stepped portion 272 of the rotating body 27 described later.

  And as shown to Fig.9 (a), the 1st opposing surface 421 and the 2nd opposing surface 422 are provided in the surface which opposes. The first facing surface 421 is in contact with and in contact with the stepped portion 272. Then, as shown in FIG. 4, the first facing surface 421 is separated from the handle 12 toward the radially outward Y1 that is the protruding direction, that is, as shown in FIG. As it goes outward Y1, it inclines so that it may go to the front end side L1b of the support shaft 20. As shown in FIG.

  On the other hand, as shown in FIG. 9A, the second facing surface 422 is located on the radially outer side Y <b> 1 than the first facing surface 421 and faces the step portion 272. And, the angle β of the tip side L1b, L2b among the angles formed by the imaginary straight line VLb extending in parallel to the second facing surface 422 from the second facing surface 422 toward the supporting shaft 422 and the supporting shaft 20 is: It is larger than the angle α of the leading ends L1b and L2b among the angles formed by the imaginary straight line VLa extending in parallel to the first facing surface 421 from the first facing surface 421 toward the supporting shaft 421 and the supporting shaft 20.

  The angles α and β may be any angles within the range where the effects of the present invention are exhibited. In this example, α is 60 ° and β is a right angle. As shown in FIG. 9A, both α and β indicate angles in a state in which no force is applied to the rotating body 27 toward the side from the support shaft 20 (the tip side L1b of the support shaft 20). Is. Further, in this example, the surface 423 positioned more than the first facing surface 421 is a surface perpendicular to the support shaft 20. In the present specification, “right angle” and “vertical” are not only strictly right angle and perpendicular state, but are also ranges that are recognized as being substantially right angle or vertical even if not strictly right angle or vertical. Is included.

  As shown in FIG. 4, a diameter-expanded portion 44 is formed at the end of the base end L1a of the support shaft 20 in the connecting member 40. The diameter-expanded portion 44 is expanded in the radially outward direction Y1. In this example, the diameter-expanded portion 44 is expanded in the entire radial direction of the support shaft 20 to form an annular shape. Then, as shown in FIGS. 4 and 9A, a stepped portion 272 is located between the locking claw 42 and the enlarged diameter portion 44. The stepped portion 272 abuts against the locking claw 42 and the enlarged diameter portion 44 and is sandwiched between the both. Thereby, the rotating body 27 is positioned with respect to the support shaft 20, and the play of the rotating body 27 is reduced.

  As shown in FIGS. 7 and 8, a plurality of ribs 45 that slightly protrude from the outer peripheral surface of the connecting member 40 are formed on the outer peripheral surface of the connecting member 40 adjacent to the enlarged diameter portion 44. In this example, as shown in FIG. 9A, four are provided at equal intervals in the circumferential direction of the connecting member 40. The rib 45 is configured to be in contact with the surface 272 b on the support shaft 20 side in the stepped portion 272. The rib 45 has a predetermined width in the circumferential direction of the connecting member 40, and the rib 45 ensures a contact area between the connecting member 40 and the rotating body 27 within a predetermined range.

  As shown in FIG. 6, an outer peripheral recess 46 is formed on the distal end side L <b> 1 b of the support shaft 20 on the outer peripheral surface of the connecting member 40. The outer peripheral recess 46 is a flat recess, and a gate 47 is formed at the bottom 461 thereof. The gate 47 is a portion corresponding to an injection port provided for injecting a forming material in the molding die of the connection member 40 when the connection member 40 is injection-molded. The gate 47 is slightly raised from the bottom 461.

  As shown in FIG. 9A, when a force toward the distal end L1b is applied to the rotating body 27 in a state where the stepped portion 272 is in contact with the first facing surface 421, as shown in FIG. 9B. As described above, the stepped portion 272 presses the first facing surface 421. Thereby, the cantilever part 43 bends, and the latching claw 42 is displaced radially inward Y <b> 2 so as to approach the support shaft 20. Then, when the rotating body 27 slightly moves to the distal end side L1b, the stepped portion 272 rides on the first facing surface 421 and abuts on the second facing surface 422. As a result, the stepped portion 272 is locked by the second facing surface 422.

  As shown in FIGS. 9A and 9B, the distal end portion 424 of the locking claw 42 on the radially outer side Y1 has a curved shape protruding in the radially outward direction Y1. And the inclined surface 425 which is the surface of the front end side L1b of the support shaft 20 in the latching claw 42, and L2b inclines so that it may go to the base end side L1a and L2a of the support shaft 20 as it goes to radial direction outward Y1. ing. In this example, the inclined surface 425 is connected to the outer surface 43a of the cantilever portion 43 located on the distal end side L1b from the distal end portion 424 in the connecting member 40, and is curved so as to be gradually recessed toward the support shaft 20 side. ing.

  The rotating body 27 is rotatably supported on the support shaft 20 together with the connecting member 40 via the connecting member 40 provided on each support shaft 20. As shown in FIG. 4, each rotating body 27 includes a core material 28 made of synthetic resin, a cap material 29 made of synthetic resin fitted to the inner periphery of the tip of the core material 28, the core material 28, and the cap material. The outer cover material 30 is made of a synthetic resin coated and molded on the outer periphery of 29. Conductive metal plating as a conductive portion is applied to the outer surface of the jacket material 30 to ensure electrical conduction with the connecting member 40. A space 271 in which the connecting member 40 is inserted and arranged is formed inside the core member 28. In this example, as shown in FIG. 4, the inner wall surface of the space 271 has a concave shape in which the proximal end side L1a of the support shaft 20 is open and the distal end side L1b of the support shaft 20 is closed.

  As shown in FIGS. 4 and 9A, the inner wall surface of the space 271 has a step that can be engaged with the locking claw 42 from the proximal end side L1a of the support shaft 20 toward the distal end side L1b of the support shaft 20. A portion 272 is formed. The step portion 272 is formed in an annular shape along the outer peripheral surface of the support shaft 20. In the present example, the stepped portion 272 has a substantially rectangular shape in a cross section passing through the axis L1 of the support shaft 20. A surface 272 a facing the locking claw 42 in the stepped portion 272 is a surface perpendicular to the support shaft 20. As shown in FIG. 9A, the end portion 272d on the radially inner side Y2 of the surface 272a in the stepped portion 272 (that is, the corner portion on the tip side L1b in the stepped portion 272) is the first opposite in the radial direction Y. It is located within the range of the surface 421 and faces the first facing surface 421 in the direction of the axis L1. In this example, the end 272d is in contact with the first facing surface 421. In this example, the base end side L1a and L2a surface 272c of the support shaft 20 in the stepped portion 272 are in contact with the enlarged diameter portion 44. The connecting member 40 is inserted and disposed in the space 271 of the rotating body 27, and the locking claw 42 is engaged with the stepped portion 272, so that the rotating body 27 is prevented from coming off from the connecting member 40.

  As shown in FIGS. 1 and 3, a through hole 31 is formed in the first cover body 14 in the vicinity of the base portion of the bifurcated portion 12 a of the handle 12. A light receiving lens 32 made of a transparent synthetic resin is fitted into the through hole 31 via a sealing material 33. Inside the light receiving lens 32 (inside the handle 12), a solar cell panel 34 is disposed on the base body 13. The positive and negative output terminals of the solar cell panel 34 are connected to the conductive portion on the outer surface of the handle 12 and the support shaft 20. The sealing material 33 prevents water from entering the solar cell panel 34 and the handle 12.

Next, the effect in the cosmetic device 1 of a present Example is explained in full detail.
According to the cosmetic device 1 of the present example, the locking claw 42 can be engaged with the stepped portion 272 of the rotating body 27, and the first facing the stepped portion 272 on the surfaces of the base end sides L1a and L2a of the support shaft 20. The opposing surface 421 and the second opposing surface 422 are provided. The first facing surface 421 is inclined so as to go to the distal end side L1b, L2b of the support shaft 20 as it goes radially outward Y1. Therefore, when the stepped portion 272 and the locking claw 42 have a relatively large dimensional variation, and the dimension becomes larger than the reference size, the stepped portion 272 abuts on the first facing surface 421, thereby the locking claw. 42 is pressed to the radial inner side Y2 and can be displaced to the radial inner side Y2. Thereby, the dimension variation of the level | step-difference part 272 and the latching claw 42 is absorbed, and the play of the rotary body 27 is reduced.

  Further, a second facing surface 422 is located further radially outward Y1 of the first facing surface 421. Then, the tip side L1b, L2b of the support shaft 20 out of the angle formed by the imaginary straight line VLb extending in parallel with the second facing surface 422 from the second facing surface 422 toward the supporting shaft 422 and the supporting shaft 20 The angle β is the tip side L1b of the support shaft 20 among the angles formed by the imaginary straight line VLa extending in parallel with the first facing surface 421 from the first facing surface 421 toward the supporting shaft 421, and the support shaft 20; It is larger than the angle α of L2b. That is, the second facing surface 422 is a surface that stands more with respect to the support shaft 20 than the first facing surface 421. As a result, even when the stepping portion 272 gets over the first facing surface 421 when a force in the direction in which the rotating body 27 comes off from the support shaft 20, that is, a force toward the distal end side L1b or L2b of the support shaft 20 is applied. , It becomes difficult to get over the second facing surface 422 ahead. Therefore, it is possible to prevent the stepped portion 272 from getting over the locking claw 42 and the engagement between the stepped portion 272 and the locking claw 42 being released at an unexpected timing, so that the rotating body 27 is not detached from the support shaft 20. Is done.

  In this example, the angle β is a right angle. Accordingly, when the stepped portion 272 gets over the first facing surface 421, the stepped portion 272 comes into contact with the second facing surface 422 and is easily caught on the second facing surface 422. Therefore, the stepped portion 272 can be further prevented from getting over the locking claw 42, and the effect of preventing the rotating body 27 from coming off is further improved.

  In this example, the angle α is 60 °, and the first facing surface 421 is a surface that is inclined more gently with respect to the support shaft 20 than the second facing surface 422. Thereby, even when the dimensions of the stepped portion 272, the locking claw 42, and the like vary, the first opposing surface 421 abuts on the stepped portion 272, so that the locking claw 42 is radially adjusted according to the size variation. It is easy to displace. Therefore, even when the dimensional variation exists, the backlash of the rotating body 27 is further reduced.

  Moreover, in this example, the front-end | tip part 424 of radial direction outward Y1 in the latching claw 42 becomes the curved shape which protrudes to radial direction outward Y1. Thereby, it becomes easy to form the front-end | tip part 424 of the latching claw 42 thickly, the intensity | strength of the latching claw 42 is ensured, and damage, such as a chip | tip of the latching claw 42, can be prevented. Therefore, even when excessive force is applied to the rotating body 27 in the direction (tip end side L1b) in which the rotating body 27 is detached from the support shaft 20, the effect of preventing the rotating body 27 from being removed is sufficiently exerted.

  Moreover, in this example, the inclination which inclines so that it may face toward the base end side L1a and L2a of the support shaft 20 toward the radial direction outward Y1 in the surface of the front end side L1b and L2b of the support shaft 20 in the latching claw 42. It has a surface 425. When the connecting member 40 is inserted and arranged in the space 271 of the rotating body 27, the stepped portion 272 and the locking claw 42 come into contact with each other via the inclined surface 425, and the locking claw 42 is pressed to the radially inner side Y2. As a result, the engaging claw 42 is displaced radially inward Y2. As a result, the stepped portion 272 can move over the engagement claws 42 toward the base end sides L1a and L2a of the support shaft 20 and engage with the engagement claws 42 from the base end sides L1a and L2a. With this configuration, it is possible to secure the effect of preventing the engagement claw 42 from coming off while facilitating the attachment of the rotating body 27.

  In place of forming the inclined surface 425 on the locking claw 42, the base end side L1a and L2a of the support shaft 20 in the stepped portion 272 are radially outwardly provided as in the modification shown in FIG. You may form the inclined surface 272c which inclines so that it may go to the base end side L1a of the support shaft 20, and L2a as it goes to Y1. In the modified example, as shown in FIG. 10, the surfaces of the locking claws 42 on the front end sides L1b and L2b of the locking claws 42 are surfaces 426 that are perpendicular to the axis L1. Moreover, in the said modification, the outer surface 43a of the cantilever part 43 becomes a surface parallel to the axis line L1. Also in the modified example, the same effects as those of the first embodiment are obtained.

  In addition, it is good also as forming the inclined surface 272c (refer FIG. 10) in the level | step-difference part 272 while forming the inclined surface 425 (refer FIG. 9A) in the latching claw 42. FIG. In this case, the same effects as those of the first embodiment are obtained.

  Further, in this example, the connecting member 40 has a cylindrical shape, and the support shaft 20 is inserted inside. Thereby, the bearing part 41 can be easily formed in the connection member 40, and it becomes easy to form the bearing part 41 and the latching claw 42 as an integral member. As a result, the number of parts can be reduced, which contributes to reducing the burden of assembly work.

  In addition, it replaces with the connection member 40 of this example, and you may make it the bearing part 41 and the latching claw 42 consist of a different body. For example, a ring-shaped bearing portion and a case for holding the ring-shaped bearing portion may be provided, and a locking claw may be provided on the case.

  Further, in this example, a plurality of the locking claws 42 are provided, and viewed from the tip end side L1b (L2b) of the support shaft 20 at equal intervals on a virtual circle c centered on the axis L1 (L2) of the support shaft 20. Has been placed. Thereby, since the some latching claw 42 is arrange | positioned with sufficient balance with respect to the support shaft 20, the rotary body 27 can be locked stably and the removal prevention effect of the rotary body 27 can be improved. it can.

  Further, in this example, the connecting member 40 has a cantilever shape in which the ends of the distal ends L1b and L2b of the support shaft 20 are fixed and the ends of the proximal ends L1a and L2a of the support shaft 20 are free ends. The latching claw 42 is formed in the end part of the base end side L1a of the support shaft 20 in the cantilever part 43, and L2a. Thereby, the latching claw 42 can be configured to be displaceable in the radial direction with a simple configuration.

  Further, in this example, the connecting member 40 has a diameter-expanded portion 44 that is expanded radially outwardly Y1 at the end of the base end side L1a, L2a of the support shaft 20, and the stepped portion 272 is It is located between the locking claw 42 and the enlarged diameter portion 44 and is sandwiched between them. Thereby, since the level | step-difference part 272 of the rotary body 27 will be positioned by the latching claw 42 and the diameter expansion part 44 of the connection member 40, the play of the rotary body 27 can further be reduced.

  In this example, as shown in FIG. 9a, in the state in which the surface 272c on the base end side L1a of the stepped portion 272 is in contact with the enlarged diameter portion 44, the end of the stepped portion 272 on the radially inner side Y2 of the surface 272a. The portion 272d is in contact with the first facing surface 421, but the thickness of the stepped portion 272 (the length in the axial direction of the support shaft 20) is defined so that the locking claw 42 is not displaced to the radially inner side Y2. Has been. Instead, in a state where the surface 272c on the base end side L1a of the stepped portion 272 is in contact with the enlarged diameter portion 44, the end 272d of the stepped portion 272 is in contact with the first facing surface 421, and The thickness of the stepped portion 272 may be increased so that the locking claw 42 is displaced to the radially inner side Y2. In this case, due to the restoring force of the cantilever portion 43, the first facing surface 421 of the locking claw 42 presses the end portion 272d of the stepped portion 272 to the proximal end L1a. Thereby, since the level | step-difference part 272 is clamped more strongly by the latching claw 42 and the enlarged diameter part 44, generation | occurrence | production of rattling can be prevented further.

  Further, in this example, the inner wall surface of the space 271 in the rotating body 27 has a concave shape in which the proximal ends L1a and L2a of the support shaft 20 are opened and the distal ends L1b and L2b of the support shaft 20 are closed. As a result, the outer surfaces of the distal end sides L1b and L2b of the support shaft 20 in the rotating body 27 can be closed, and a wide range of the outer surface of the rotating body 27 can be brought into contact with the skin. As a result, the rotary body 27 can be easily pressed against the skin from various directions, so that the massage effect by the beauty device 1 can be improved.

  In this example, corners 411a of the pair of holes 411 are formed in a substantially arc shape. Thereby, it is suppressed that a stress concentrates on the said corner | angular part 411a, and the failure | damage of the connection member 40 is prevented.

  Further, in this example, the hole portion 411 is formed so that 70 to 90% of the outer periphery of the support shaft 20 positioned inside the connecting member 40 is in contact with the bearing portion 41. Thereby, a sufficient contact area between the bearing portion 41 and the support shaft 20 can be secured, and wear due to wear of the connecting member 40 can be reduced.

  In the present example, a gate 47 is provided on the outer peripheral surface of the connecting member 40 at the tip end opposite to the enlarged diameter portion 44. As a result, when the connecting member 40 is injection-molded, the forming material is easily filled in the molding die, and the molding workability and the molding accuracy are improved.

  In this example, in the connection member 40, the locking claw 42 is formed integrally with the bearing portion 41 via the cantilever portion 43, and the step portion 272 presses the first facing surface 421. The cantilever portion 43 is bent and the locking claw 42 is displaced inward in the radial direction Y2 so as to approach the support shaft 20. Instead of this, the locking claw 42 may be provided separately from the connecting member 40. For example, an elastic body that is elastically deformable in the radial direction Y is disposed on the outer peripheral surface of the bearing portion 41 of the connecting member 40, and the elastic body protrudes radially outward Y1 on the surface of the elastic body in the radial direction Y1. A pawl is provided. In this case, the outer peripheral surface of the bearing portion 41 and the elastic body, and the joining method of the elastic body and the locking claw are not particularly limited. In addition, the said elastic body may form a bottomed recessed part in the outer peripheral surface of the bearing part 41, and you may make it arrange | position on the bottom face of the said recessed part.

  In this modification, when the stepped portion 272 presses the first facing surface 421, the elastic body is compressed and elastically deformed, and the locking claw 42 is displaced radially inward Y2 so as to approach the support shaft 20. . Therefore, this modified example also has the same effect as that of the first embodiment. Furthermore, since the locking claw 42 is a separate body from the connecting member 40, even if the locking claw 42 is damaged when the rotating body 27 is pulled out from the connecting member 40 by pulling it to the distal end L1b, only the locking claw 42 is provided. Need not be replaced, and the entire connecting member 40 need not be replaced. Therefore, the repair cost when the latching claw 42 is damaged can be reduced.

  As described above, according to the present embodiment, it is possible to provide a cosmetic device that can prevent the rotating body from coming off the support shaft at an unexpected timing while reducing the backlash of the rotating body.

DESCRIPTION OF SYMBOLS 1 Beauty device 12 Handle 20 Support shaft 27 Rotating body 272 Step part 40 Connecting member 42 Locking claw 421 First opposing surface 422 Second opposing surface 44 Expanded portion

Claims (4)

A handle, a support shaft having a base end fixed to the handle, a connecting member attached to the support shaft in a state of being prevented from being detached, and being rotatable with the connecting member to the support shaft via the connecting member A cosmetic device having a supported rotating body,
The connecting member has a cylindrical bearing portion through which the support shaft is inserted, and a locking claw that protrudes radially outward and is displaceable in the radial direction,
The rotating body has a space in which the coupling member is inserted and arranged, and the locking claw is formed on an inner wall surface of the space from a proximal end side of the support shaft toward a distal end side opposite to the proximal end side. Has a stepped portion engageable with,
The locking claw is inclined on the surface on the base end side of the support shaft so as to go to the distal end side of the support shaft toward the outer side in the radial direction, and a first facing surface facing the stepped portion. And a second facing surface that is located further radially outward of the first facing surface and faces the stepped portion,
Of the angles formed by the support shaft and an imaginary straight line extending in parallel with the second facing surface from the second facing surface toward the supporting shaft, the angle on the tip side of the supporting shaft is the first angle. A cosmetic device that is larger than an angle formed between a virtual straight line extending in parallel with the first facing surface from the facing surface of the supporting shaft and the supporting shaft and an angle on the tip side of the supporting shaft.   The cosmetic device according to claim 1, wherein an angle on a tip side of the support shaft out of angles formed by the virtual straight line on the second facing surface and the support shaft is a right angle.   The connecting member has a cantilever portion having a cantilever shape in which a distal end portion of the support shaft is fixed and a proximal end portion of the support shaft is a free end. The cosmetic device according to claim 1 or 2, wherein the locking claw is formed at an end portion of the support shaft in a proximal end side of the support shaft.   At least one of the surface on the distal end side of the support shaft in the locking claw and the surface on the proximal end side of the support shaft in the stepped portion is directed toward the proximal end side of the support shaft as it goes radially outward. The cosmetic device as described in any one of Claims 1-3 in which the inclined surface which inclines like this is formed.

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