Beauty device

Abstract

To provide a beauty instrument enabling easy care of nostril parts or the like of a face.SOLUTION: A beauty instrument 1 includes: a vibrator 32 disposed in a housing 11 and generating vibration; and a diaphragm 12 disposed extending from the vibrator 32 side to the outside of the housing 11 and vibrating due to the transmission of vibration by the vibrator 32. The diaphragm 12 has an area in which a width in an X direction orthogonal to a Y direction of directing from a tip side to the vibrator 32 side becomes smaller from the tip side of the diaphragm 12 to the Y direction. The diaphragm 12 has a protruding surface protruding in a direction crossing a plain surface including the Y direction and the X direction.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a cosmetic device. [Background technology]

[0002] There is known a beauty device that performs skin care by transmitting ultrasonic vibrations to the skin of the face, etc. For example, Patent Document 1 describes a method in which a vibration actuator that transmits vibrations from an ultrasonic vibrator to a vibration plate is used to apply vibrations to the skin surface by pressing the vibration plate against the skin surface. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-60927 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the vibration actuator described in Patent Document 1, the diaphragm is shaped so that its width decreases towards the tip, but in order to ensure sufficient vibration at the tip that comes into contact with the skin, the diaphragm needs to have a certain degree of width. Therefore, the width of the diaphragm becomes large, making it difficult to care for areas with large undulations in a narrow area, such as the nostrils of the face. An object of the present invention is to provide a beauty device that can easily care for areas such as the nostrils of the face. [Means for solving the problem]

[0005] In order to solve the above-mentioned problems, the present invention provides, in a first aspect, a beauty device comprising: a vibrator disposed within a housing for generating vibrations; and a vibration plate extending from the vibrator side to the outside of the housing and vibrating as vibrations from the vibrator are transmitted to the vibration plate, wherein the vibration plate has a region whose width in a short direction perpendicular to a longitudinal direction from the tip side to the vibrator side becomes smaller as it moves from the tip side to the vibrator side. According to the cosmetic device of the first aspect, the width of the vibration plate can be made narrow so as to fit the shape of the nostrils and the like of the face.

[0006] In the cosmetic device of the first aspect, a configuration in which the vibration plate has a convex surface that protrudes in a direction intersecting a plane including the longitudinal direction and the lateral direction may be adopted as a second aspect. According to the second aspect of the beauty device, even if the vibrating plate is shaped so that its width increases toward the tip, the attenuation of the vibration energy passing through per unit area as the width increases can be suppressed, and sufficient vibration can be transmitted to the tip.

[0007] In the cosmetic device of the second aspect, a configuration may be adopted as a third aspect in which the inclination of the convex surface relative to the plane in the region on the tip side of the convex surface is greater than the inclination of the convex surface relative to the plane in the region on the vibrator side of the convex surface. According to the cosmetic device of the third aspect, it is possible to suppress attenuation of vibration energy transmitted to the tip of the vibration plate, and it is possible to transmit sufficient vibration to the tip.

[0008] In any of the first to third cosmetic devices, a fourth aspect may be adopted in which the width of the vibration plate at the part where the short-side width is smallest on the vibrator side from the tip side is 50% or more of the width of the vibration plate at the part where the short-side width is largest on the tip side of the vibration plate. According to the cosmetic device of the fourth aspect, it is possible to suppress attenuation of vibration energy transmitted to the tip of the vibration plate, and it is possible to transmit sufficient vibration to the tip.

[0009] In a fifth aspect of the cosmetic device of any one of the first to fourth aspects, the outer periphery of the tip of the vibration plate has a curved shape, and the curvature of the outer periphery in the most distal region of the tip is greater than the curvature of the outer periphery in the region extending from the most distal region of the tip toward the vibrator. According to the cosmetic device of the fifth aspect, sufficient vibration can be generated at the tip of the vibration plate.

[0010] In any one of the first to fifth aspects of the beauty device, a sixth aspect may be adopted in which the distance from the most distal end of the vibration plate to the position where the width of the vibration plate in the short side direction is smallest is in the range of 30% or more and 70% or less of the distance from the most distal end of the vibration plate to the vibrator. According to the cosmetic device of the sixth aspect, sufficient vibration can be transmitted to the tip of the vibration plate. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing an external appearance of a beauty device according to an embodiment. [Diagram 2] FIG. 2 is a diagram showing an internal structure of the beauty device according to the embodiment. [Diagram 3] FIG. 4 is a side view showing the shape of a vibration plate of the beauty device according to the embodiment. [Figure 4] FIG. 2 is a front view showing the shape of a vibration plate of the beauty device according to the embodiment. [Diagram 5] FIG. 2 is a block diagram showing a control system of the cosmetic device according to the embodiment. [Figure 6] FIG. 2 is a diagram for explaining a method of using the beauty device according to one embodiment. [Figure 7] FIG. 13 is a diagram showing the appearance of a cosmetic device according to a modified example. [Figure 8] 13A and 13B are diagrams showing the configuration of a vibration plate of a cosmetic device according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] [Embodiment] A beauty device 1 according to one embodiment of the present invention will be described below. Fig. 1 shows the external appearance of the cosmetic device 1, with Fig. 1(A) being a front view and Fig. 1(B) being a rear view. The cosmetic device 1 is configured such that a vibration plate 12, which is a plate-shaped member, protrudes from the top surface of a housing 11. The cross-sectional shape of the housing 11 when viewed from above is elliptical.

[0013] A mode button 21 and a level button 22 are provided on the front of the housing 11 as operation buttons for user operation. The mode button 21 is a button for switching the power on / off and switching the operation mode. The level button 22 is a button for adjusting the vibration level of the diaphragm 12 in each operation mode.

[0014] On the front side of the housing 11, there are provided mode lamps 23 for displaying the operation mode set by operating the mode button. In this embodiment, three mode lamps 23 are provided, corresponding to the display of three operation modes (peeling mode, moist mode, lift mode). Of the three operation modes, the mode lamp corresponding to the selected operation mode is lit. When the power is off, all the mode lamps are turned off.

[0015] A charging lamp 24 is further provided on the front surface of the housing 11. The charging lamp 24 lights up when the built-in battery of the cosmetic device 1 is charging, and turns off when charging is complete. A charging terminal section 25 is provided at the bottom of the back surface of housing 11. By inserting the bottom of housing 11 into a charging stand (not shown), the electrical contacts of charging terminal section 25 come into contact with the electrical contacts of the charging stand, and the rechargeable battery inside the housing is charged by power supplied from the charging stand via the electrical contacts.

[0016] A hand electrode 26 extending from both side surfaces to the bottom is provided on the housing 11. The hand electrode 26 is provided at a position that touches the user's hand when the user holds the cosmetic device 1 in his / her hand, and is an electrode that becomes electrically conductive when touched by the hand.

[0017] FIG. 2 is a diagram showing a part of the internal structure of the cosmetic device 1. As shown in FIG. Provided inside the housing 11 are a backing plate 31 that supports the diaphragm 12, a vibrator 32, and a substrate 33 to which the vibrator 32 is fixed. The vibrator 32 is, for example, an ultrasonic actuator constituted by a piezoelectric element, and the substrate 33 is, for example, a glass epoxy substrate. The backing plate 31 supports the diaphragm 12 on one side at one end, and is attached to the substrate 33 at the other end.

[0018] In the drawings and the following description, the left-right direction in Fig. 1 and Fig. 2 is the X-axis direction, and the up-down direction is the Y-axis direction. The direction perpendicular to the plane including the X-axis and Y-axis, i.e., the up-down direction with respect to the paper surface in Fig. 1 and Fig. 2, is the Z-axis direction. Hereinafter, the X-axis direction and the Y-axis direction, and the Z-axis direction will be simply referred to as the X direction, the Y direction, and the Z direction.

[0019] The Y direction is the direction from the tip side of diaphragm 12 toward vibrator 32, i.e., the longitudinal direction of diaphragm 12. The X direction is the width direction of diaphragm 12, i.e., the short side direction. In the drawing, the X direction, Y direction, and Z direction are indicated by arrows, and a "·" in a "circle" means an arrow pointing from the back to the front of the paper, and a "x" in a "circle" means an arrow pointing from the front to the back of the paper.

[0020] The diaphragm 12, one end of which is supported by the contact plate 31, is provided with the other end extending to the outside of the housing 11. The diaphragm 12 is formed of a metal such as a resilient thin stainless steel plate or a hard thin copper plate. The contact plate 31 is formed of a hard, thick stainless steel plate or a metal such as an aluminum or duralumin plate, and serves to reinforce the portion of the diaphragm 12 on the vibrator 32 side and to concentrate the vibration of the vibrator 32 on the tip side of the diaphragm 12.

[0021] The center line C along the longitudinal direction (Y direction) of the diaphragm 12 is arranged to coincide with the center lines of the contact plate 31 and the vibrator 32. In this embodiment, the vibration generated by the vibrator 32 has an amplitude that is displaced in the Z direction (a direction perpendicular to a plane including the longitudinal and lateral directions of the diaphragm 12), and the diaphragm 12 vibrates in a direction along the Z direction.

[0022] The diaphragm 12 is composed of a flat portion 121 located on the vibrator 32 side and a curved portion 122 located on the tip side. The flat portion 121 is formed of a flat surface with almost no undulations with respect to a plane (hereinafter referred to as the XY plane) including the longitudinal direction (Y direction) and lateral direction (X direction) of the diaphragm 12. The curved portion 122 has a curved surface that protrudes in the Z direction with respect to the XY plane.

[0023] 2, the curved surface portion 122 of the diaphragm 12 has a curved outer periphery, and has a position where its width in the short side direction (X direction) is maximum value W1. The width gradually decreases from the position where the width is maximum value W1 toward the vibrator 32, and in the flat portion 121, there is a position where the width is minimum value W2.

[0024] If the distance in the Y direction from the tip of diaphragm 12 to the center position of vibrator 32 is L0, and the distance in the Y direction from the tip of diaphragm 12 to the position where the width is minimum value W2 is L1, then distance L1 is preferably set to a value between 30% and 70% of distance L0. In this way, the efficiency of transmission of vibration energy from vibrator 32 to the tip of diaphragm 12 is improved by setting the position where the width of diaphragm 12 is minimum value W2 to a position somewhat away from the tip side of diaphragm 12 or the vibrator 32 side.

[0025] Fig. 3 is a side view showing the configuration of diaphragm 12. Curved portion 122 on the tip side of diaphragm 12 has convex surface 122a that protrudes in the Z direction. In Fig. 3, when curved portion 122 is viewed from below, protruding convex surface 122a is visible, but when viewed from above, concave surface 122b that is recessed corresponding to convex surface 122a is visible.

[0026] The thickness of diaphragm 12 is preferably 0.5 mm to 1 mm. The thickness of flat portion 121 and the thickness of curved portion 122 (the distance between convex surface 122a and concave surface 122b) may be the same or different, but it is preferable that both thicknesses are 0.5 mm to 1 mm.

[0027] Convex surface 122a of curved surface portion 122 has region 122a1, which is a region where the slope increases in the Z direction from the tip side to the rear end side (vibrator 32 side), and region 122a2, which is a region where the slope increases in the Z direction from the rear end side (vibrator 32 side) to the tip side. In this embodiment, convex surface 122a is formed so that the slope of region 122a1 with respect to the XY plane is larger than the slope of region 122a2 with respect to the XY plane. With this configuration, it is possible to suppress attenuation in region 122a2 of vibration energy transmitted from the vibrator 32 side to the tip of diaphragm 12.

[0028] Fig. 4 is a front view showing the configuration of diaphragm 12. In Fig. 4(A), the outer periphery of diaphragm 12 in a front view has regions 12r and 12s having a curved shape on the tip side of curved surface portion 122, region 12t whose width gradually decreases from the position where the width is maximum value W1 toward the rear end side, and region 12u whose width gradually increases from the position where the width is minimum value W2 toward the rear end side. Region 12t is a region that straddles curved surface portion 122 and flat portion 121.

[0029] In this embodiment, width W2 is preferably 50% or more of width W1. If width W2 is less than 50% of width W1, the attenuation of vibration energy transmitted from vibrator 32 becomes too large, and vibration at the tip of diaphragm 12 becomes too small. Width W1 is preferably 5 mm to 20 mm, and more preferably 12 mm to 17 mm. Note that in region 12u, there may be a position where the width of diaphragm 12 is maximum value W1 or greater.

[0030] The outer periphery of the tip of curved surface portion 122 having regions 12r and 12s is nearly elliptical, but it is preferable that the curvature of the outer periphery in region 12r, which is the most distal position, is larger than the curvature of the outer periphery in region 12s, which extends from the most distal position toward the rear end (vibrator 32 side). With this configuration, the magnitude of vibration at the tip of diaphragm 12 can be ensured.

[0031] FIG. 4(B) is a diagram for explaining the transmission of vibration in the diaphragm 12. In the diaphragm 12, the vibration energy from the vibrator 32 is transmitted from the rear end side (lower side in the figure) to the tip side (upper side in the figure). The vibration energy is gradually attenuated during the transmission process. The elliptical region P of the curved surface portion 122 in FIG. 4(B) is a region that hardly vibrates compared to other regions. In other words, it is considered that in the process of transmitting the vibration energy from the rear end side to the tip side, the vibration energy is hardly transmitted to the region P. Therefore, the vibration energy is transmitted in a concentrated manner to the surrounding parts excluding the region P, so that the attenuation of the vibration energy can be suppressed.

[0032] More specifically, in the region where the width of the diaphragm 12 increases from the rear end side of the diaphragm 12 to the tip side in the curved surface portion 122, the concave surface 122b gradually becomes deeper toward the tip side (see FIG. 3), and the region P where it is difficult to vibrate gradually increases. Therefore, in this region, the range to which the vibration energy transmitted to the peripheral portion excluding the region P toward the tip side is transmitted can be gradually narrowed toward the tip side, so that even if the width of the diaphragm 12 gradually increases, the vibration energy is dispersed and is not attenuated, and the vibration can be transmitted reliably to the tip position. In addition, by providing a region where the concave surface 122b gradually becomes deeper toward the tip side, the propagated vibration energy can be prevented from being reflected by the concave surface 122b, so that the vibration can be transmitted reliably to the tip position.

[0033] As described above, in this embodiment, by forming curved portion 122 having convex surface 122a on diaphragm 12, region P, which is an area that hardly vibrates, can be created, thereby obtaining the effect of suppressing the attenuation of vibration energy transmitted to the tip of diaphragm 12.

[0034] FIG. 5 is a block diagram showing the configuration of a control system in the cosmetic device 1. As shown in FIG. The control unit 41 is composed of, for example, a circuit board equipped with a CPU (Central Processing Unit), a drive board for controlling each motor, etc. The CPU controls the operation of each component in the cosmetic device 1 by executing processes according to a stored program.

[0035] The power supply unit 42 is electrically connected to the hand electrode 26 and the diaphragm 12, and energizes the hand electrode 26 and the diaphragm 12 as a pair. In this embodiment, the diaphragm 12 is made of metal, and functions as an electrode paired with the hand electrode 26. The power supply unit 42 also applies a voltage with a frequency in the ultrasonic range to the piezoelectric element of the ultrasonic actuator that constitutes the vibrator 32, thereby generating ultrasonic vibrations. The control unit 41 and the power supply unit 42 are provided within the housing 11.

[0036] The control by the control unit 41 will be described below. The mode button 21 also functions as a power button, and when the control unit 41 detects that the mode button 21 has been pressed and held by the user, the control unit 41 controls the power supply unit 42 to switch the power supply to the power-on state.

[0037] When the mode button 21 is pressed and held, the control unit 41 controls the power supply unit 42 to be in a power-on state, and causes the power supply unit 42 to start operation in the peeling mode. The control unit 41 turns on the lamp of the mode lamps 23 that corresponds to the peeling mode.

[0038] When control unit 41 detects that mode button 21 has been pressed by the user while power supply unit 42 is operating in the peeling mode, it causes power supply unit 42 to start operating in the moist mode. Then, control unit 41 turns on the lamp corresponding to the moist mode among mode lamps 23. Furthermore, when control unit 41 detects that mode button 21 has been pressed while power supply unit 42 is operating in the moist mode, it causes power supply unit 42 to start operating in the lift mode. Then, control unit 41 turns on the lamp corresponding to the lift mode among mode lamps 23.

[0039] As described above, the control unit 41 performs control to change the operation mode each time the mode button 21 is pressed. When the mode button 21 is pressed and held down during operation in any operation mode, the control unit 41 performs control to turn off the power supply unit and turns off all mode lamps 23. Note that the order of operation modes set each time the mode button 21 is pressed is not limited to the above-mentioned order and may be set as appropriate. Also, it may be possible for the user to set the order.

[0040] When the control unit 41 detects that the level button 22 is pressed during operation in any operation mode, the control unit 41 controls the power supply unit 42 to change the vibration level of the diaphragm 12. Then, each time the level button 22 is pressed, the control unit 41 controls the power supply unit 42 to increase (or decrease) the vibration level.

[0041] Next, the control in each operation mode will be described. In each operation mode, the user holds the cosmetic device 1, the vibration plate 12 is in contact with the skin surface, and the hand of the user touches the hand electrode 26 of the housing 11.

[0042] In the peeling mode, the power supply unit 42 applies a voltage of a predetermined frequency to the vibrator 32 to generate ultrasonic vibrations and transmit the vibrations to the tip side of the vibration plate 12. Furthermore, the power supply unit 42 applies a voltage to the hand electrode 26 as the cathode and the vibration plate 12 as the anode, thereby deriving ions.

[0043] Since the vibration plate 12 is positively charged, negatively charged dirt (dead skin, dust, etc.) adhering to the skin surface in contact with the vibration plate 12 can be adsorbed and discharged by the positive charge. The ultrasonic vibration of the vibration plate 12 applies vibration to the skin surface, facilitating the adsorption and discharge of dirt.

[0044] In the moist mode, the power supply unit 42 applies a voltage of a predetermined frequency to the vibrator 32 to generate ultrasonic vibrations and transmit the vibrations to the tip side of the vibration plate 12. Furthermore, the power supply unit 42 applies a voltage to the hand electrode 26 as the anode and the vibration plate 12 as the cathode to perform iontophoresis.

[0045] Since the vibration plate 12 is negatively charged, the beauty serum applied to the skin surface becomes negatively ionized when it comes into contact with the vibration plate 12, and is adsorbed to the skin surface, facilitating penetration into the depths of the skin surface. The ultrasonic vibration of the vibration plate 12 applies vibrations to the skin surface, promoting penetration of the beauty serum into the skin surface.

[0046] In the lift mode, the power supply unit 42 applies a voltage of a predetermined frequency to the vibrator 32 to generate ultrasonic vibrations and transmit the vibrations to the tip side of the vibration plate 12. Furthermore, the power supply unit 42 applies a voltage between the hand electrode 26 and the vibration plate 12 to pass a weak current (microcurrent) through the skin surface in contact with the vibration plate 12, thereby caring for the skin surface. Furthermore, the ultrasonic vibration of the vibration plate 12 is used to apply vibrations to the skin surface, thereby caring for the skin surface.

[0047] FIG. 6 is a diagram for explaining how to use the cosmetic device 1. As shown in FIG. Fig. 6(A) is a diagram for explaining how to use the device in peeling mode. With water on the skin surface S, the housing 11 is tilted at an angle of about 30 to 45 degrees with respect to the skin surface S, and the tip of the vibration plate 12 is placed against the skin surface S with the convex surface 122a of the vibration plate 12 facing upward (facing the opposite side to the skin surface S). Then, the cosmetic device 1 is moved in the direction of the arrow while the tip of the vibration plate 12 is placed against the skin surface S. By doing so, the vibration waves generated at the tip of the vibration plate 12 act like hitting the skin surface S, and ions are derived, so that old keratin and dirt on the skin surface S can be removed.

[0048] Fig. 6(B) is a diagram for explaining how to use the device in the moist mode or lift mode. In the moist mode, with the beauty serum applied to the skin surface, the housing 11 is tilted at an angle of about 20 to 30 degrees with respect to the skin surface S, and the convex surface 122a of the vibration plate 12 is placed against the skin surface S. Then, the beauty device 1 is moved in the direction of the arrow while the convex surface 122a of the vibration plate 12 is placed against the skin surface S. In this way, the vibration of the vibration plate 12 is diffused over a wide range by the convex surface 122a to impart vibration to the skin surface S, and the penetration of the beauty serum ingredients into the stratum corneum can be promoted by iontophoresis.

[0049] In the lift mode, with water applied to the skin surface S, similarly to the moist mode, the housing 11 is tilted at an angle of about 20 to 30 degrees with respect to the skin surface S, and the cosmetic device 1 is moved in the direction of the arrow with the convex surface 122a of the vibration plate 12 in contact with the skin surface S. In this way, care for the skin surface S can be performed by applying vibrations to the skin surface S and by using microcurrents (weak electric currents).

[0050] [Variations] The above-described embodiment can be modified in various ways. Examples of such modifications are shown below. Note that the above-described embodiment and the modifications shown below may be combined as appropriate.

[0051] (1) In the above embodiment, the housing 11 and the diaphragm 12 are integrally configured, but the diaphragm 12 may be configured to be replaceable with a diaphragm having a different shape. Fig. 7 is an external view showing a cosmetic device 1A according to a modified example. The housing 11 is composed of a first housing part 111 and a second housing part 112. The second housing part 112 is provided with a vibration plate 12 extending to the outside of the housing, and is provided with a contact plate 31, a vibrator 32, and a substrate 33 shown in Fig. 2 of the embodiment.

[0052] The second housing unit 112 is detachable from the first housing unit 111. An electrical contact is provided on a bottom surface 112a of the second housing unit 112, and when the second housing unit 112 is attached to the first housing unit 111, the electrical contact on the bottom surface 112a comes into contact with the electrical contact provided on the first housing unit 111, thereby electrically connecting with the control unit 41 and the power supply unit 42 provided in the first housing unit 111, and enabling the same operation as in the above-mentioned embodiment.

[0053] Another housing part 113 provided with a diaphragm having a shape different from that of the diaphragm 12 provided on the second housing part 112 can be attached to the first housing part 111. A magnetic contact may be used as a contact for electrically connecting the first housing part 111 and the second housing part 112 or the housing part 113.

[0054] (2) In the above-described embodiment, the convex surface 122a of the diaphragm 12 is formed as a curved surface, but a part of the convex surface 122a may be formed as a flat surface. Fig. 8(A) is a side view showing the configuration of a diaphragm 12A according to a modified example. In Fig. 8(A), a flat area 122a3 is formed on the convex surface 122a. Areas 122a1 and 122a2 around area 122a3 are formed as curved surfaces, similar to the above-described embodiment. In this way, by providing flat area 122a3 within convex surface 122a, the area that comes into contact with the skin surface becomes larger, and the effect of vibration on the skin surface and the effect of iontophoresis can be increased.

[0055] (3) In the above-described embodiment, convex surface 122a of diaphragm 12 is formed as a closed surface, but an opening may be provided in convex surface 122a. FIG. 8(B) is a front view showing the configuration of diaphragm 12B according to a modified example. An elliptical opening 122h is provided in the bottom of curved surface portion 122 of diaphragm 12B. Opening 122h is a hole penetrating convex surface 122a and concave surface 122b in FIG. 3. Opening 122h is provided in a region that at least partially or entirely overlaps with region P in FIG. 4(B).

[0056] Region P in FIG. 4(B) is a region that hardly vibrates, but by making at least a part or all of this region into opening 122h, the region of opening 122h becomes a region that does not vibrate at all, thereby further suppressing the attenuation of the vibration energy transmitted from vibrator 32 to the tip of diaphragm 12.

[0057] Furthermore, if the opening 122h is provided in an area outside the range of the area P, vibrations will occur at the edge of the opening 122h. The edge comes into contact with the skin surface, thereby increasing the effect of the vibration on the skin surface. Furthermore, a plurality of openings may be provided.

[0058] The opening 122h does not have to be elliptical. It may be a perfect circle or other shape surrounded by curves, a shape surrounded by straight lines such as a rectangle, or a shape surrounded by curves and straight lines. The opening may also be a shape surrounded by curves that are partially or entirely curved. In this case, similar to the shape of the tip of the diaphragm 12, the curvature of the most distal edge of the opening may be greater than the curvature of the edge from the most distal position toward the rear end.

[0059] (4) In the above embodiment, the outer shape of the convex surface 122a in Fig. 3 is a curved surface with different inclinations at the front end and rear end, but the outer shape of the convex surface 122a is not limited to this. For example, it may be a perfect circle or an ellipse, or may be a shape that is symmetrical between the front end and rear end.

[0060] (5) In the above embodiment, the diaphragm 12 functions as an electrode to extract ions, introduce ions, and provide care to the skin surface by weak current, but these functions are not essential, and the skin surface may be provided only by the vibration of the diaphragm 12. When the skin surface is provided only by the vibration of the diaphragm 12, the diaphragm 12 does not need to be made of metal, and may be made of resin such as plastic. Also, the hand electrode 26 of the housing 11 may not be provided.

[0061] (6) In the above embodiment, one vibrator 32 is provided, but multiple vibrators may be provided. In this case, the distance L0 in Fig. 2 may be the distance from the tip of the diaphragm 12 to any one of the vibrators, for example, the distance from the tip of the diaphragm 12 to the closest vibrator.

[0062] (7) In the above embodiment, distance L0 in FIG. 2 is the distance from the tip of diaphragm 12 to the center position of vibrator 32, but is not limited to the center position of vibrator 32 and may be another position.

[0063] (8) In the above embodiment, the vibration direction of the diaphragm 12 is the Z direction, but this is not limited thereto, and the diaphragm 12 may vibrate in the X direction or the Y direction. By changing the configuration, arrangement position, and number of the vibrators 32, it is possible to change the vibration direction of the diaphragm 12.

[0064] (9) In the above embodiment, the center line C of the diaphragm 12 along the longitudinal direction (Y direction) is arranged to coincide with the center line of the vibrator 32, but this is not limited thereto. The center line C of the diaphragm 12 and the center line of the vibrator 32 may be arranged to be shifted in the X direction. In this case, the vibration direction of the diaphragm 12 can be a direction other than the X direction, the Y direction, and the Z direction.

[0065] (10) The beauty device 1 of the above-mentioned embodiment may further include a heater. By using the heater to heat the vibration plate 12, when the vibration plate 12 comes into contact with the skin surface in each of the above-mentioned operation modes, the skin surface can be heated and blood circulation can be improved. [Explanation of symbols]

[0066] 1, 1A... beauty device, 11... housing, 12, 12A, 12B... vibration plate, 21... mode button, 22... level button, 23... mode lamp, 24... charging lamp, 25... charging terminal portion, 26... hand electrode, 31... contact plate, 32... vibrator, 33... board, 41... control portion, 42... power supply portion, 111... first housing portion, 112... second housing portion, 121... flat portion, 122... curved portion, 122a... convex surface, 122a1... tip side region, 122a2... rear end side region, 122b... concave surface.

Claims

1. A vibrator provided within the housing for generating vibrations; a vibration plate that is provided extending from the vibrator side to the outside of the housing and vibrates when vibration from the vibrator is transmitted, the vibration plate being composed of a flat portion connected to the vibrator side and a curved portion connected to the flat portion; the curved surface portion forms a convex surface protruding from a plane including a longitudinal direction from the tip portion side toward the transducer side and a lateral direction perpendicular to the longitudinal direction, and has a width in the lateral direction of 5 to 20 mm; The vibration plate has a region in which the width decreases from the tip end side toward the vibrator side, An opening is provided in the curved surface portion. Beauty device.

2. The width of the diaphragm at a portion closer to the vibrator than the tip end in the short-side direction is at its narrowest, and is 50% or more of the width of the diaphragm at a portion closer to the vibrator than the tip end in the short-side direction. The beauty device according to claim 1.

3. The distance from the most distal end of the diaphragm to the position where the width of the diaphragm in the short side direction is smallest is in the range of 30% to 70% of the distance from the most distal end of the diaphragm to the vibrator. The beauty device according to claim 1.

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