Beauty Equipment

Abstract

To provide a beautification instrument that can be stably moved on the skin for massaging, such that a contact part to the skin does not come off the skin.SOLUTION: A beautification instrument has a pivot driven by a driving source, a cylindrical cam 2 that rotates on the basis of driving of the pivot and has a cam groove on the outer surface, a cam follower that engages with the cam groove 21, and contact parts 3a, 3b, 3c that reciprocate in parallel with the skin face on the basis of the movement of the cam followers.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention is a beauty device. Ingredients Regarding. [Background technology]

[0002] 2. Description of the Related Art Conventionally, various beauty devices that massage the skin are known.

[0003] For example, Patent Document 1 discloses an electric brush device that presses projections against the scalp to massage the scalp as if using fingertips. The electric brush device disclosed in Patent Document 1 has a drive unit that moves the brush up and down, and a brush unit that is operated by the drive unit, and the brush unit is composed of a base plate made of a flexible material and a number of projections that protrude from the surface of the base plate. As the brush unit moves up and down, the base plate of the brush unit repeatedly deforms between a curved convex state in which it is bent downward and a curved concave state in which it is bent upward, and the projections stimulate the skin and perform a massage. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2011-198 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the configuration disclosed in Patent Document 1, when massaging the scalp, the user grasps the device body and holds the tip of the protrusion against the scalp with his / her hand. With this configuration, the brush part moves up and down, so it is necessary to press the tip of the protrusion of the brush part against the skin so that it does not come off. Also, depending on the direction and magnitude of the force (load) applied by the user, the degree of contact between the scalp and the protrusion may change, or the protrusion may come off the scalp, resulting in an inability to obtain a stable massage effect.

[0006] In view of the above, an object of one aspect of the present invention is to provide a beauty tool capable of stably stretching the skin without the contacts that come into contact with the skin coming off the skin. [Means for solving the problem]

[0007] A beauty tool according to one aspect of the present invention includes a rotary shaft driven by a drive source, a cylindrical cam having a cam groove on an outer circumferential surface thereof, and a rotary member that engages with the cam groove. Multiple A cam follower and a reciprocating motion parallel to the skin surface based on the movement of the cam follower. Multiple A contact and The device comprises a case having an elongated notch provided at a position corresponding to each of the contacts, and a cover having an elongated notch provided at a position corresponding to each of the contacts, the notches in the case and the notches in the cover are connected to form a plurality of insertion holes, each of the cam followers is inserted into each of the insertion holes, the surface of each of the contacts that comes into contact with the skin is flat, the contacts are arranged side by side on the same plane, and are movable within the same plane, and as the cylindrical cam rotates, at least one of the plurality of contacts and a contact located adjacent to the one contact in the circumferential direction of the cylindrical cam are movable in opposite directions to each other in the axial direction of the rotation shaft along the insertion hole. Effect of the Invention

[0008] ADVANTAGEOUS EFFECT OF THE DRAWINGS The beauty tool according to one aspect of the present invention can stably stretch the skin without the contacts that come into contact with the skin coming off the skin. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a plan view of a beauty device according to one embodiment. [Diagram 2] FIG. 2 is a bottom view of a cosmetic device according to one embodiment. [Diagram 3] FIG. 2 is a cross-sectional view of FIG. [Figure 4] FIG. 2 is a cross-sectional view taken along line II-II of FIG. [Figure 5A] FIG. 2 is a side development view of a cylindrical cam of the beauty tool according to one embodiment. [Figure 5B] 1 is a front view of a beauty tool according to an embodiment with a cover removed; FIG. [Figure 6] FIG. 13 is a side development view of a modified example of the cylindrical cam of the beauty tool according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] In the following description, in order to facilitate understanding, the scale of each component in the drawings may differ from the actual scale.

[0011] In this specification, a three-dimensional Cartesian coordinate system with three axial directions (X-axis, Y-axis, and Z-axis) may be used for explanation. In this case, the direction parallel to the axis of the rotation shaft 4 of the cylindrical cam 2 is defined as the Z-axis direction, and one of two mutually orthogonal directions on a plane perpendicular to the axis is defined as the X-axis direction, and the other is defined as the Y-axis direction. Also, the +Z-axis direction may be referred to as up, and the -Z-axis direction may be referred to as down.

[0012] A beauty tool according to one embodiment of the present invention will be described. Fig. 1 is a plan view of the beauty tool 1 according to one embodiment, and Fig. 2 is a bottom view of the beauty tool 1 according to one embodiment. Fig. 3 is a cross-sectional view taken along line II in Fig. 1, and Fig. 4 is a cross-sectional view taken along line II-II in Fig. 3.

[0013] As shown in Figures 1 to 4, the beauty tool 1 includes a cylindrical cam 2 that rotates on a rotating shaft 4, contacts 3a, 3b, and 3c having cam followers 31a, 31b, and 31c that engage with cam grooves 21 of the cylindrical cam 2, a drive source 5 for driving the cylindrical cam 2, a case 6 having an opening to accommodate these components, and a cover 7 that covers the opening of the case 6.

[0014] The cylindrical cam 2 is fixed to the rotating shaft 4, and the two rotate integrally. A wave-shaped cam groove 21 that goes around the cylindrical cam 2 and oscillates in the axial direction of the rotating shaft 4 is formed on the outer circumferential surface of the cylindrical cam 2. In this embodiment, one wave-shaped cam groove 21 is shown (FIG. 5A), but as will be described later, the shape and number of the cam groove 21 are not limited to this.

[0015] The contacts 3a, 3b, and 3c are members for contacting the skin of the user to perform treatment. As shown in FIG. 2, the contacts 3a, 3b, and 3c are arranged side by side on the same plane. As shown in FIG. 3 and FIG. 4, the contacts 3a, 3b, and 3c have cam followers 31a, 31b, and 31c formed to protrude toward the cam groove 21 and engage with the cam groove 21. In this embodiment, the cam followers 31a, 31b, and 31c are formed integrally with the contacts 3a, 3b, and 3c, but may be formed separately. The contacts 3a, 3b, and 3c are supported so as to be reciprocatable in a moving direction L (Z-axis direction) parallel to the rotation axis 4 with the rotation of the cylindrical cam 2, but not to be rotatable. With this configuration, the contacts 3a, 3b, and 3c reciprocate parallel to the skin surface of the user. In this embodiment, three contacts are provided, but the number of contacts can be any number depending on the desired number of points of contact with the skin surface.

[0016] Furthermore, the contacts 3a, 3b, and 3c have a first surface S1, a second surface S2, and a third surface S3 that come into contact with the user's skin. The first surface S1, the second surface S2, and the third surface S3 preferably have a surface that has a large frictional force against the user's skin surface. The first surface S1, the second surface S2, and the third surface S3 can be formed of a material such as silicone rubber or a gel pad. They may also have an adhesive layer. This allows the first surface S1, the second surface S2, and the third surface S3 to maintain contact with the skin even when they reciprocate parallel to the user's skin during treatment. Furthermore, the first surface S1, the second surface S2, and the third surface S3 are preferably made of a flexible material. Also, protrusions, for example, multiple small semi-spherical protrusions, may be provided on the first surface S1, the second surface S2, and the third surface S3. In this embodiment, the first surface S1, the second surface S2, and the third surface S3 are generally rectangular in front view, but may be any shape such as circular, oblong, etc. The materials, shapes, etc. of the contacts 3a, 3b, and 3c may be different from each other.

[0017] The driving source 5 drives the rotating shaft 4 to rotate the cylindrical cam 2 fixed to the rotating shaft 4. The driving source 5 may be, for example, an electric motor. The rotation speed of the driving source 5 can be set arbitrarily according to the location and situation of the skin surface to be treated, and can be, for example, 20 to 60 rpm. The driving source 5 is connected to a power supply source, for example, a rechargeable battery, a dry cell, or a commercial power source.

[0018] The case 6 has elongated notches 61, 62, 63 that are long along the movement direction L of the contacts formed at the upper end of the surface facing the user's skin (contact surface) at positions corresponding to the contacts 3a, 3b, 3c. The cover 7 also has elongated notches 71, 72, 73 that are long along the movement direction L of the contacts 3a, 3b, 3c formed at the lower end of the surface facing the user's skin at positions corresponding to the contacts 3a, 3b, 3c. By fixing the cover 7 to the case 6, the notches 61, 62, 63 of the case 6 communicate with the notches 71, 72, 73 of the cover 7 to form three insertion holes 8a, 8b, 8c. Cam followers 31a, 31b, and 31c are inserted into the respective insertion holes 8a, 8b, and 8c, and cam followers 31a, 31b, and 31c are movably fixed in the insertion holes 8a, 8b, and 8c. In addition, the movement of contacts 3a, 3b, and 3c in the circumferential direction of cylindrical cam 2 is restricted by the insertion holes 8a, 8b, and 8c.

[0019] With this structure, for example, the cover 7 can be removed and the contacts 3a, 3b, and 3c can be replaced, or the cylindrical cam 2 and the contacts 3a, 3b, and 3c can be replaced together as described below, thereby changing the number of contacts and enabling a different extension pattern.

[0020] Next, the movements of the contacts 3a, 3b, and 3c (the shape of the cam groove 21) will be described.

[0021] FIG. 5A is a side development view of a cylindrical cam 2 of a beauty tool 1 according to one embodiment, and FIG. 5B is a front view of the beauty tool 1 according to one embodiment with a cover 7 removed.

[0022] As shown in FIG. 5A, the cam groove 21 has a first parallel portion 211 and a second parallel portion 212 parallel to the circumferential direction of the cylindrical cam 2, and a first inclined portion 213 and a second inclined portion 214 inclined to the circumferential direction of the cylindrical cam 2. The first parallel portion 211 and the second parallel portion 212 are arranged apart from each other in the circumferential direction of the cylindrical cam 2 and in the axial direction of the rotating shaft 4, and are connected via the first inclined portion 213 and the second inclined portion 214. The distance between the first parallel portion 211 and the second parallel portion 212 in the axial direction of the rotating shaft 4 corresponds to the amplitude A of the cam groove 21. This makes it possible to give a stimulation to the skin such that the first inclined portion 213 gradually stretches the skin, the first parallel portion 211 maintains the stretched state, and the second inclined portion 214 gradually releases the stretched state.

[0023] Contactors 3a, 3b, 3c are arranged as shown in FIG. 5B, and when cam followers 31a, 31b, 31c of each contactor 3a, 3b, 3c are arranged in one cam groove 21 as shown in FIG. 5A, for example, as shown in FIGS. 3 and 4, cam follower 31b is arranged closer to one end in the Y-axis direction than cam followers 31a and 31c (FIG. 3), and cam followers 31a and 31c are arranged in line symmetry with the axis of rotation shaft 4 as the axis of symmetry (FIG. 4).

[0024] As a result, when the cam follower 31b of the cam followers 31a, 31b, and 31c is used as a reference, the cam followers 31a and 31c are disposed at a phase of ±π / 2 (1 / 2π, 3 / 2π) of the cam groove 21. Therefore, when the contactor 3b is used as a reference, the contactors 3a and 3c located on both sides can move with a phase difference by rotating the cylindrical cam 2. In other words, the contactors 3a, 3b, and 3c can move in opposite directions to each other in the axial direction of the rotation shaft 4. Therefore, by bringing the contactors into contact with the skin of the user, the skin can be stretched. In addition, since the contactors 3a, 3b, and 3c can move on the same plane, the contactors 3a, 3b, and 3c in contact with the skin can be stably stretched without coming off the skin when in contact with the skin surface T as shown in FIG. 5B. 5B, the contacts 3a, 3b, and 3c move in a direction perpendicular to the paper (toward the viewer and toward the rear of the paper). In this embodiment, the contacts 3a, 3b, and 3c are movable with a phase difference of π / 2, but the phase can be adjusted to any desired value by changing the engagement positions of the cam followers 31a, 31b, and 31c with the cam groove 21.

[0025] The shape and number of the cam grooves 21 are not limited to those exemplified in this embodiment, and can be appropriately changed according to the intended stimulation, and the extension method (extension pattern, rhythm) can be controlled with a simple configuration. For example, when the extension range is to be widened, the amplitude A can be increased, and when the extension range is to be narrowed, the amplitude A can be decreased. For this purpose, for example, a cylindrical cam having a desired cam groove formed therein and a plurality of contacts assembled with a plurality of cam followers inserted into the cam groove are combined into a set, and the cover 7 is removed and the set of cylindrical cam and contacts is replaced, thereby providing a beauty tool 1 with a different extension method.

[0026] Furthermore, when the skin is stretched with a phase difference, the cam groove 21 receives the force of the stretched skin trying to return to its original state, thereby reducing the load on the driving source 5. In particular, if the friction between the cam groove 21 and the cam followers 31a, 31b, 31c can be reduced (for example, by making the cam followers 31a, 31b, 31c spherical and made of a material with a small coefficient of friction), the load on the driving source 5 can be reduced, so that in the case where the power source is a battery, it is possible to extend the consumption of the battery and extend the life of the beauty tool 1. As will be described later, increasing the number of cam grooves 21 or the number of cam followers 31a, 31b, 31c increases the load on the motor, making it necessary to devise ways to save energy.

[0027] (Modification of cylindrical cam) FIG. 6 is a development view of a side surface of a modified example of the cylindrical cam 2 of the beauty tool 1 according to one embodiment.

[0028] 6 has two cam grooves, and cam grooves 121 and 122 are shaped such that cam groove 21 in the example shown in Fig. 5A is symmetrically arranged with respect to a plane perpendicular to rotation axis 4 of cylindrical cam 2. In this case, for example, by inserting cam follower 31b of contactor 3b into cam groove 121 and inserting cam followers 31a and 31c of contactors 3a and 3c into cam groove 122, the three contactors can alternate between a state in which the skin is stretched by both side contactors 3a and 3c and central contactor 3b and a state in which the skin is stretched and a state in which the skin is stretched.

[0029] In addition, by engaging two cam followers with cam grooves 121 and 122, respectively, and arranging the contact engaging with cam groove 121 and the contact engaging with cam groove 122 adjacent to each other, it is possible to repeat extension and extension / release within a narrow range.

[0030] As described above, by selecting the number of cam grooves, the number of cam followers to be engaged (inserted) into the cam grooves, and the shape of the cam grooves, it is possible to create a variety of extension patterns.

[0031] (Beauty method) Next, a cosmetic method according to one embodiment of the present invention will be described.

[0032] In a cosmetic method according to an embodiment of the present invention, a plurality of contacts that have a large frictional force against the skin surface and move back and forth parallel to the skin surface are arranged on the same plane, and adjacent contacts are moved in opposite directions while in contact with the skin surface, thereby repeatedly stretching and releasing the surface of the skin surface. This makes it possible to stably stretch the skin without the contacts in contact with the skin coming off the skin.

[0033] As described above, the embodiment has been described, but the above embodiment is presented as an example, and the present invention is not limited to the above embodiment. The above embodiment can be implemented in various other forms, and various combinations, omissions, substitutions, modifications, etc. can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0034] 1. Beauty equipment 2, 102 Cylindrical cam 21, 121, 122 Cam groove 211 1st parallel section 212 2nd parallel part 213 1st slope 214 2nd slope part 3a, 3b, 3c contacts 31a, 31b, 31c Cam followers 4 Rotation Axis 5. Power Source 6 Cases 7 Cover S1 1st page S2 side 2 S3 3rd page T Skin side

Claims

1. A rotating shaft driven by a driving source; a cylindrical cam having a cam groove on an outer circumferential surface thereof, the cylindrical cam being rotated by the driving of the rotary shaft; A plurality of cam followers engaged with the cam grooves; A plurality of contacts that reciprocate parallel to the skin surface based on the movement of the cam follower; a case having elongated notches provided at positions corresponding to the contacts; a cover having elongated notches provided at positions corresponding to the contacts, the cutouts of the case and the cutouts of the cover communicate with each other to form a plurality of insertion holes, and the cam followers are inserted into the respective insertion holes, the surfaces of the contacts that come into contact with the skin are flat, the contacts are arranged side by side on the same plane, and are movable within the same plane; A beauty device in which, by rotating the cylindrical cam, at least one of the multiple contacts and a contact located adjacent to the one contact in the circumferential direction of the cylindrical cam are movable in opposite directions to each other along the insertion hole in the axial direction of the rotation shaft.

2. the cam groove has a wave shape that goes around the cylindrical cam and oscillates in the axial direction of the rotation shaft, The wave shape has a first parallel portion and a second parallel portion parallel to a circumferential direction of the cylindrical cam, and a first inclined portion and a second inclined portion inclined with respect to the circumferential direction of the cylindrical cam, 2. The beauty device according to claim 1, wherein the first parallel portion and the second parallel portion are arranged at a distance from each other in a circumferential direction of the cylindrical cam and in an axial direction of the rotation shaft, and are connected via the first inclined portion and the second inclined portion.

3. The contacts are provided in three numbers, 3. The beauty tool according to claim 2, wherein, when the cam follower of the contactor located in the center is used as a reference, the cam followers of the contactors located on both sides are arranged at a phase of ±π / 2 of the cam groove.

4. The beauty tool according to claim 1 , wherein a plurality of the cam grooves are formed in an axial direction of the rotation shaft, and each of the plurality of cam grooves has at least one of the contacts corresponding thereto.

5. The beauty tool according to claim 1 , wherein the contact member that comes into contact with the skin surface has a surface that exerts a large frictional force against the skin surface.

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