CN114144225A

CN114144225A - Cosmetic device

Info

Publication number: CN114144225A
Application number: CN202080053427.1A
Authority: CN
Inventors: 山崎岩男
Original assignee: Ya Man Ltd
Current assignee: Ya Man Ltd
Priority date: 2019-07-31
Filing date: 2020-07-22
Publication date: 2022-03-04
Also published as: WO2021020270A1; JP2024052990A; JP2021023430A

Abstract

The head (20) has a 1 st electrode (21), three 2 nd electrodes (22A, 22B, 22C), and an insulating section (23). The distance from the 1 st electrode (21) to the three 2 nd electrodes (22A, 22B, 22C) is shorter than the distance between the three 2 nd electrodes (22A, 22B, 22C). When an RF signal is outputted to the body, the RF signal is outputted through the 1 st electrode (21) and the three 2 nd electrodes (22A, 22B, 22C), and when a signal for EMS is outputted to the body, the RF signal is outputted through 2 electrodes selected from the three 2 nd electrodes (22A, 22B, 22C).

Description

Cosmetic device

Technical Field

The present invention relates to a cosmetic device.

Background

As an invention of a beauty treatment apparatus for passing a current through a human body, for example, there is a beauty treatment apparatus disclosed in patent document 1. The cosmetic device has: a 1 st electrode having four branches branched from a center and extending in a straight line and a radial direction; and a triangular contact portion between the branches, wherein an RF (Radio Frequency) voltage is applied between the 1 st electrode and the contact portion in an RF (Radio wave) output, and an EMS (Electrical Muscle Stimulation) voltage is applied between the 1 st electrode portion and the contact portion in an EMS output.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 6445212

Disclosure of Invention

Problems to be solved by the invention

When the distance between the electrodes to which a voltage is applied is increased when an RF signal is output, the skin is less likely to be warm, and it is preferable to decrease the distance between the electrodes. On the other hand, when the distance between the electrodes to which the voltage is applied is shortened when the signal for the EMS is output, the user feels a sense of annoyance as chattering vibration.

The purpose of the present invention is to achieve both warming of the skin and suppression of unpleasant muscle irritation.

Means for solving the problems

The present invention provides a cosmetic device having: the 1 st electrode, its periphery is round, oval or triangular; three 2 nd electrodes, the three 2 nd electrodes are positioned around the 1 st electrode, the distance between the three 2 nd electrodes and the 1 st electrode is within a predetermined 1 st range, and the distance between the three 2 nd electrodes is within a predetermined 2 nd range; and an output unit that outputs a 1 st signal through the 1 st electrode and at least one of the 2 nd electrodes, and outputs a 2 nd signal having a frequency different from that of the 1 st signal through the plurality of the 2 nd electrodes.

In the present invention, the distance from the 1 st electrode to the 2 nd electrode may be shorter than the distance between the adjacent 2 nd electrodes.

In the present invention, the frequency of the 2 nd signal may be lower than the frequency of the 1 st signal.

In the present invention, an end face of the 2 nd electrode facing an end face of another adjacent 2 nd electrode may be parallel to an end face of the another 2 nd electrode.

In the present invention, the output unit may change the group of the 2 nd electrode that outputs the 2 nd signal at a predetermined timing.

In the present invention, the output unit may be configured to switch the group of the 2 nd electrode that outputs the 2 nd signal every time the 2 nd signal is output.

In the present invention, a surface of the 2 nd electrode may protrude from a surface of the 1 st electrode.

In the present invention, the 2 nd electrode may be formed in an arc shape protruding in a direction opposite to the direction of the 1 st electrode.

Effects of the invention

According to the present invention, the skin can be warmed by the RF signal, and the unpleasant feeling of the skin can be suppressed when outputting the signal for EMS.

Drawings

Fig. 1 is a perspective view of a beauty treatment apparatus 1 of an embodiment of the present invention.

Fig. 2 is a front view of the cosmetic apparatus 1.

Fig. 3 is a top view of the cosmetic apparatus 1.

Fig. 4 is a side view of the cosmetic apparatus 1.

Fig. 5 is a diagram showing a state in which the head 20 of the cosmetic apparatus 1 is rotated.

Fig. 6 is a diagram showing a state in which the head 20 of the cosmetic apparatus 1 is rotated.

Fig. 7 is an enlarged view of the head 20.

Fig. 8 is a block diagram of the cosmetic apparatus 1.

Fig. 9 is a view showing the head 20 having the 2 nd to 2 nd electrodes 22D to 22G.

Fig. 10 is a diagram showing various sizes in the type 1 to type 7 heads 20.

Fig. 11 is a diagram showing the evaluation result of body feeling.

Fig. 12 is a diagram showing the evaluation result of body sensation.

Fig. 13 is a diagram showing an electrode according to a modification.

Detailed Description

[ embodiment ]

(structure of the embodiment)

Fig. 1 is a perspective view of a beauty treatment apparatus 1 of an embodiment of the present invention, fig. 2 is a front view of the beauty treatment apparatus 1, fig. 3 is a plan view of the beauty treatment apparatus 1, and fig. 4 is a side view of the beauty treatment apparatus 1. The beauty equipment 1 is an equipment that heats the skin of the face and contracts the muscles of the face by outputting an electric signal to the face. In the present embodiment, the cosmetic device 1 can output an RF electric signal and an electric signal for EMS.

The cosmetic apparatus 1 has a body 10 and a head 20. The main body 10 has a plurality of buttons 31 and a plurality of LEDs 32 for operating the cosmetic apparatus 1. The body 10 is an example of the gripped part of the present invention. In the cosmetic device 1, the power supply can be turned on/off, the output signal can be switched, and the like by operating the button 31. The LEDs 32 are light emitting diodes. The intensity of the output electrical signal is shown to the user by the number of LEDs 32 that are lit. The main body 10 includes therein a power supply as a power supply of the beauty treatment apparatus 1, a circuit for generating an electric signal to be output to the body, and a control unit for controlling the output electric signal. The power source is, for example, a secondary battery, but may be a primary battery, or may be a household ac power source.

The head 20 includes a 1 st electrode 21, a 2 nd electrode 22A, a 2 nd electrode 22B, a 2 nd electrode 22C, an insulating portion 23, a hemispherical electrode 40A, and a hemispherical electrode 40B. The 1 st electrode 21 is an example of the 1 st electrode of the present invention, and the 2

nd electrodes

22A, 22B, and 22C are examples of the 2 nd electrode of the present invention. The head 20 is free to rotate steplessly with respect to the body 10. The head 20 is an example of a rotating portion of the present invention.

The flat-surface insulating portion 23 is made of an insulating material, and insulates between the 1 st electrode 21 and the 2 nd electrode 22A, between the 1 st electrode 21 and the 2 nd electrode 22B, between the 1 st electrode 21 and the 2 nd electrode 22C, between the 2 nd electrode 22A and the 2 nd electrode 22B, between the 2 nd electrode 22B and the 2 nd electrode 22C, and between the 2 nd electrode 22C and the 2 nd electrode 22A. The surface of the insulating part 23 is inclined with respect to the main body 10. For example, when a plane including the center line in the vertical direction of the main body 10 and extending to the left and right in front view is assumed, the angle θ formed between the assumed plane and the surface of the insulating portion 23 is 10 degrees. In addition, assuming a center line of the insulating portion 23 perpendicular to the surface of the insulating portion 23, the center line is not parallel to the rotation axis of the head 20 but is inclined with respect to the rotation axis of the head 20. The inclination angle of this center line with respect to the rotation axis of the head 20 is also 10 degrees. These angles are not limited to 10 degrees, and may be angles other than 10 degrees.

The 1 st electrode 21 is formed of a conductive material and is used for outputting an RF electric signal to the body. In the present embodiment, the 1 st electrode 21 has a circular ring shape with a circular outer edge and is disposed at the center of the head 20. The surface of the 1 st electrode 21 is parallel to the surface of the insulating portion 23. In the present embodiment, the diameter B of the 1 st electrode 21 is preferably in the range of 10mm to 30 mm. The shape of the 1 st electrode 21 is not limited to the circular ring shape, and may be a disk shape.

The 2 nd electrode 22A, the 2 nd electrode 22B, and the 2 nd electrode 22C are formed of a material having electrical conductivity, and are electrodes used when RF electrical signals are output to the body and when electrical signals for EMS are output to the body. Since the 2 nd electrode 22A, the 2 nd electrode 22B, and the 2 nd electrode 22C have the same configuration, the 2 nd electrode 22A, the 2 nd electrode 22B, and the 2 nd electrode 22C will be referred to as the 2 nd electrode 22 when it is not necessary to distinguish them from each other in the following description.

In the present embodiment, the 2 nd electrode 22 is formed in an arc shape protruding in a direction opposite to the direction of the 1 st electrode 21, and is disposed outside the outer periphery of the 1 st electrode 21 when viewed from the front concentric with the 1 st electrode 21. In other words, the 2 nd electrode 22A, the 2 nd electrode 22B, and the 2 nd electrode 22C may be arranged to be spaced apart from each other by dividing one ring-shaped electrode into a plurality of parts. In this example, the ring-shaped electrode is divided into 3, but the number of the divided electrodes may be 4 or more. Here, the 2 nd electrode 22A, the 2 nd electrode 22B, and the 2 nd electrode 22C have the same circumferential length of the arc shape. In addition, the surface of the 2 nd electrode 22 is parallel to the surface of the insulating portion 23. In the present embodiment, the diameter a of the circle connecting the outer peripheries of the 2 nd electrode 22A, the 2 nd electrode 22B, and the 2 nd electrode 22C is preferably set to be in the range of 20mm to 50 mm.

Hemispherical electrodes

40A and 40B are disposed outside the outer periphery of insulating portion 23 in head 20.

Hemispherical electrodes

40A and 40B are made of a conductive material, and have a shape in which the tip is formed as a protrusion of a hemispherical ball.

Hemispherical electrodes

40A and 40B are examples of the protrusions of the present invention.

Hemispherical electrodes

40A and 40B are electrodes used when an RF electric signal is output to the body and when an electric signal for EMS is output to the body. The

hemispherical electrodes

40A and 40B are also used, for example, when finger pressure is applied.

Fig. 5 is a view showing the front, upper, lower, right, and left side surfaces of the beauty treatment apparatus 1 when the head 20 is rotated by 90 degrees from the state shown in fig. 2. Fig. 6 is a view showing the front, upper, lower, right, and left side surfaces of the beauty treatment apparatus 1 when the head 20 is rotated by 180 degrees from the state shown in fig. 2.

The head 20 is rotatable with respect to the main body 10, and assuming a center line of the insulating portion 23 perpendicular to the surface of the insulating portion 23, the center line is not parallel to the rotation axis of the head 20 but inclined with respect to the rotation axis of the head 20, so that the surface of the 1 st electrode 21 and the surface of the 2 nd electrode 22 can be brought into contact with the body at various angles by rotating the head 20.

For example, the state shown in fig. 1 to 4 is defined as a state in which the rotation angle of the head 20 is 0 degrees. When the rotation angle is 0 degrees, the surface of the insulating portion 23, the surface of the 1 st electrode 21, and the surface of the 2 nd electrode 22 are directed upward as shown in fig. 4 when viewed from the side surface side, and therefore, the surfaces of the 1 st electrode 21 and the 2 nd electrode are easily brought into line contact with the face when the body 10 is gripped.

As shown in fig. 5, when the rotation angle is 90 degrees, the surface of the insulating portion 23, the surface of the 1 st electrode 21, and the surface of the 2 nd electrode 22 are oriented to the left side when viewed from the front, and therefore, when the body 10 is held and the surfaces of the 1 st electrode 21 and the 2 nd electrode 22 are brought into contact with the face, the 1 st electrode 21 and the 2 nd electrode are easily brought into contact with the right half of the face. Although not shown, when the rotation angle is 270 degrees, the surface of the insulating portion 23, the surface of the 1 st electrode 21, and the surface of the 2 nd electrode 22 face rightward when viewed from the front, and therefore when the body 10 is gripped and the surfaces of the 1 st electrode 21 and the 2 nd electrode 22 are brought into contact with the face, the 1 st electrode 21 and the 2 nd electrode are easily brought into contact with the left half of the face.

As shown in fig. 6, when the rotation angle is 180 degrees, the surface of the insulating portion 23, the surface of the 1 st electrode 21, and the surface of the 2 nd electrode 22 face downward when viewed from the side surface side, and therefore, when the body 10 is gripped, the surfaces of the 1 st electrode 21 and the 2 nd electrode are easily brought into contact with the nose. Further, since

hemispherical electrodes

40A and 40B are positioned at the ends of cosmetic device 1 in the longitudinal direction,

hemispherical electrodes

40A and 40B are easily brought into contact with the periphery of the corner of the eye or the small nose, for example.

Fig. 7 is an enlarged view of the head 20. The distance D11 from the outer periphery of the 1 st electrode 21 to the inner periphery of the 2 nd electrode 22A, the distance D12 from the outer periphery of the 1 st electrode 21 to the inner periphery of the 2 nd electrode 22B, and the distance D13 from the outer periphery of the 1 st electrode 21 to the inner periphery of the 2 nd electrode 22C are the same distance (distance D11-distance D12-distance D13). Regarding the distance between the adjacent 2 nd electrodes 22, the distance D21 between the 2 nd electrode 22A and the 2 nd electrode 22B, the distance D22 between the 2 nd electrode 22B and the 2 nd electrode 22C, and the distance D23 between the 2 nd electrode 22C and the 2 nd electrode 22A are the same (distance D21 ═ distance D22 ═ distance D23). Further, the distance D21 is a longer distance than the distance D11. That is, the distance between the adjacent 2 nd electrodes 22 is longer than the distance between the 1 st electrode 21 and the 2 nd electrode 22. For example, the distance D11, the distance D12, and the distance D13 are 3mm, and the distance D21, the distance D22, and the distance D23 are 10 mm. Further, as long as the relationship of the distance D21, the distance D22, the distance D23 > the distance D11, the distance D12, and the distance D13 is satisfied, for example, the distance D11, the distance D12, and the distance D13 may be in the range of 1mm to 10mm, and the distance D21, the distance D22, and the distance D23 may be in the range of 5mm to 20 mm. In addition, the height from the surface of the flat insulating portion 23 to the upper surface of the 2 nd electrode 22 is higher than the height from the surface of the insulating portion 23 to the upper surface of the 1 st electrode 21. For example, the height from the surface of the insulating portion 23 to the upper surface of the 2 nd electrode 22 is 1.6mm, and the height from the surface of the insulating portion 23 to the upper surface of the 1 st electrode 21 is 1 mm. The height difference between the 1 st electrode 21 and the 2 nd electrode 22 is preferably in the range of 0mm to 2 mm. Further, the distance D11, the distance D12, and the distance D13 may not be the same distance, but may be distances within a predetermined range. The distance D21, the distance D22, and the distance D23 may not be the same distance, but may be distances within a predetermined range.

In the present embodiment, the end surface of the 2 nd electrode 22 facing the end surface of the adjacent other 2 nd electrode 22 is parallel to the end surface of the other 2 nd electrode 22. Specifically, the end surface on the 2 nd electrode 21B side among the circumferential end surfaces of the 2 nd electrode 21A is parallel to the end surface on the 2 nd electrode 21A side among the circumferential end surfaces of the 2 nd electrode 21B. Further, the end surface of the 2 nd electrode 21B on the 2 nd electrode 21C side among the end surfaces in the circumferential direction of the 2 nd electrode 21B is parallel to the end surface of the 2 nd electrode 21B side among the end surfaces in the circumferential direction of the 2 nd electrode 21C. Further, the end surface on the 2 nd electrode 21A side among the end surfaces in the circumferential direction of the 2 nd electrode 21C is parallel to the end surface on the 2 nd electrode 21C side among the end surfaces in the circumferential direction of the 2 nd electrode 21A.

Fig. 8 is a block diagram of the cosmetic apparatus 1. The output unit 102 has a circuit that outputs a 1 st signal of a 1 st frequency as an RF electric signal and a 2 nd signal of a 2 nd frequency lower than the 1 st signal frequency, the 2 nd signal being an electric signal for EMS. The output unit 102 is an example of the output unit of the present invention. The output unit 102 is controlled by the control unit 101 and outputs the 1 st signal or the 2 nd signal. When outputting the 1 st signal, the output unit 102 outputs the 1 st signal to the skin as the group of the 2 nd electrode 22 and the 1 st electrode 21 or the group of the hemispherical electrode 40A and the hemispherical electrode 40B. When outputting the 2 nd signal, the output unit 102 outputs the 2 nd signal in any one of the group of the 2 nd electrode 22A and the 2 nd electrode 22B, the group of the 2 nd electrode 22B and the 2 nd electrode 22C, the group of the 2 nd electrode 22C and the 2 nd electrode 22A, and the group of the hemispherical electrode 40A and the hemispherical electrode 40B.

The control unit 101 is, for example, a microcomputer that operates according to a stored program. The control unit 101 controls the output unit 102 to control on/off of output of an electric signal to the body and the type of the output electric signal.

For example, when a predetermined operation is performed on the button 31, the control section 101 controls the output section 102 to alternately output the 1 st signal and the 2 nd signal. Specifically, first, the control unit 101 outputs the 1 st signal so that a current flows between the 2 nd electrode 22A, the 2 nd electrode 22B, and the 2 nd electrode 22C and the 1 st electrode 21 via the body. When the 1 st electrode 21 and the 2 nd electrode 22 are in contact with the skin of the face, the skin is heated by the 1 st signal output, and the metabolism of the heated part is improved. In the present embodiment, the frequency of the 1 st signal is in the range of 1MHz to 3MHz, but the frequency is not limited to this range, and may be other frequencies as long as the effect of heating the skin is exerted.

When a predetermined time has elapsed since the start of the output of the 1 st signal, the control unit 101 stops the output of the 1 st signal, and outputs the 2 nd signal so that a current flows between the electrodes in the group through the body in any of the group of the 2 nd electrode 22A and the 2 nd electrode 22B, the group of the 2 nd electrode 22B and the 2 nd electrode 22C, and the group of the 2 nd electrode 22C and the 2 nd electrode 22A. The predetermined time for outputting the 1 st signal is 40ms in the present embodiment, but is not limited to 40ms, and may be other times. When the 1 st electrode 21 and the 2 nd electrode 22 are in contact with the skin of the face, the expression muscles of the face contract by the output 2 nd signal, and the tension and elasticity of the skin are improved. In the present embodiment, the frequency of the 2 nd signal is in the range of 70kHz to 110kHz, but the frequency is not limited to this range, and may be other frequencies as long as the signal has an effect of contracting muscles.

When a predetermined time has elapsed from the start of the output of the 2 nd signal, the control unit 101 stops the output of the 2 nd signal, and outputs the 1 st signal so that a current flows between the 2 nd electrode 22A, the 2 nd electrode 22B, and the 2 nd electrode 22C and the 1 st electrode 21 through the body. The predetermined time for outputting the 2 nd signal is 25ms in the present embodiment, but is not limited to 25ms, and may be other times. After that, the control unit 101 repeats the above-described operations to alternately output the 1 st signal and the 2 nd signal, and stops the output of the electric signal when a predetermined time has elapsed from the first start of the output of the 1 st signal. In this embodiment, the output period of the 1 st signal is the same as the output period of the 2 nd signal, but the output period of the 1 st signal may be different from the output period of the 2 nd signal.

In addition, when an operation of causing the 1 st signal and the 2 nd signal to be output from the hemispherical electrode 40A and the hemispherical electrode 40B is performed, the control section 101 controls the output section 102 so that the 1 st signal and the 2 nd signal are alternately output from the group of the hemispherical electrode 40A and the hemispherical electrode 40B.

According to the present embodiment, when the 1 st signal is output, the distance between the 1 st electrode 21 and the 2 nd electrode 22 for outputting the 1 st signal becomes a distance suitable for heating the skin (distance D11, distance D12, distance D13), and thus the skin is not difficult to be heated. In addition, with regard to the 2 nd signal, the farther the distance between the electrodes to be output, the more the muscle moves, and as the area in contact with the skin becomes larger in the electrodes to be output, the output per unit area decreases, and the stimulation to the muscle becomes less. In the present embodiment, when the 2 nd signal is output, the distance between the two 2 nd electrodes 22 that output the 2 nd signal becomes a distance (distance D21, distance D22, distance D23) and an area suitable for outputting the 2 nd signal, and therefore, it is possible to suppress the feeling of discomfort of the skin when the 2 nd signal is output.

Fig. 9 is a diagram showing a part of the head 20A having 4 2 nd, and 2

nd electrodes

22D, 22E, 22F, and 22G. In the case of the structure shown in fig. 9, the diameter of the insulating portion 23 and the diameter of the 1 st electrode 21 are the same as those of the insulating portion 23 and the 1 st electrode 21 shown in fig. 7. In this case, if the distance from the 1 st electrode 21 to each of the 2 nd, and 2

nd electrodes

22D, 22E, 22F, and 22G is equal to the distance D11, the area of the surface of each of the 2 nd, and 2

nd electrodes

22D, 22E, 22F, and 22G is narrower than the area of the surface of each of the 2 nd, and 2

nd electrodes

22A, 22B, and 22C, and the output per unit area increases, and stimulation to the muscle increases, and there is a possibility of giving an uncomfortable feeling. In the present embodiment, since the number of the 2 nd electrodes 22 is 3, the area of the surface of each of the 2

nd electrodes

22A, 22B, and 22C can be increased as compared with the configuration shown in fig. 9, the output per unit area is reduced, the stimulation to the muscle is reduced, and the uncomfortable feeling can be suppressed.

In the case of the configuration shown in fig. 9, when the 2 nd signal is output in the group of the adjacent 2 nd electrodes 22, the direction in which the 2 nd signal flows is the up-down direction and the left-right direction in fig. 9. On the other hand, in the present embodiment, the muscle can be stimulated in more directions than the configuration shown in fig. 9, by setting 3 directions to the direction from the 2 nd electrode 22A to the 2 nd electrode 22B, the direction from the 2 nd electrode 22B to the 2 nd electrode 22C, and the direction from the 2 nd electrode 22C to the 2 nd electrode 22A.

Further, according to the present embodiment, by repeating the output in which the 1 st signal is output for a period of 40ms and the 2 nd signal is output for a period of 25ms, it is possible to repeat the warming of the skin and the muscle contraction in a short cycle, and it is possible to perform the muscle contraction while maintaining the temperature feeling. In addition, in the present embodiment, since the group of the 2 nd electrode 22 outputting the 2 nd signal is switched, even if the head 20 is not moved, the position on which the 2 nd signal acts changes every time the group of the 2 nd electrode 22 outputting the 2 nd signal is switched, and thus compared with a configuration in which the group of the 2 nd electrode 22 outputting the 2 nd signal is not switched, the same body feeling as that of a tap can be obtained, and muscles can be further stimulated. Note that the period for outputting the 1 st signal may be 250ms, and the period for outputting the 2 nd signal may be 250 ms. With such an output, the user of the beauty treatment apparatus 1 can obtain a body feeling like sucking the skin when the 2 nd signal is output.

Next, the results of the sensory evaluation performed by changing the sizes of the 1 st electrode 21 and the 2 nd electrode 22 will be described with reference to fig. 10 to 12. In the somatosensory evaluation, the heads 20 of

types

1, 3, 5, and 7 were created, and the sizes of the 1 st electrode 21 and the 2 nd electrode 22 were set to the sizes shown in fig. 10 for each of the

types

1, 3, 5, and 7. In addition, regarding the area of the 2 nd electrode 22, the area of one 2 nd electrode 22 is shown. In addition, regarding the area ratio, a ratio of the area of one 2 nd electrode 22 to the area of a circle of the diameter a is shown.

Fig. 11 shows evaluation results of 4 subjects by comparing the bodily sensation of EMS due to the difference in the area of the electrodes for

types

1, 3, and 5 in which the height difference between the 1 st electrode 21 and the 2 nd electrode 22 exists and for type 7 in which the height difference between the 1 st electrode 21 and the 2 nd electrode 22 is the same. Fig. 12 shows the results of evaluating the bodily sensation of EMS for type 1 and type 5 by dividing it into 5 levels, where 1 is the case where the EMS is not usable, 2 is the case where pain is tolerable but is poor, 3 is the case where the EMS is not bad, 4 is the case where the EMS is substantially good, and 5 is the case where the EMS is good without any room for improvement.

In comparison between type 1 and type 3, there is an evaluation of less trembling sensation in type 3 in which the area of the electrode is large, but there is a better evaluation of type 1 in which the diameter a is small, with respect to the sensory sensation in contact with the face, and it is preferable that all of the 2 nd electrode 22A, the 2 nd electrode 22B, and the 2 nd electrode 22C are the diameter a in contact with the face, with respect to the EMS for the face. In addition, focusing on the aspect of the ratio of the area of one 2 nd electrode 22 to the area of the circle having the diameter a, it is found that the type 1 having a large area ratio is more preferable to evaluate, and it is preferable to enlarge the area of the 2 nd electrode 22 in the head 20 for the EMS for the face.

In comparison between type 1 and type 5, type 1 having the large area of the 2 nd electrode 2 has a higher evaluation of body feeling than type 5, and in comparison between type 1 and type 7, type 1 having the large area of the 2 nd electrode 2 has a higher evaluation of body feeling than type 7. In addition, focusing on the aspect of the ratio of the area of one of the 2 nd electrodes 22 to the area of the circle having the diameter a, the type 1 having a larger area ratio than the types 5 and 7 is evaluated to be higher than the types 5 and 7. That is, when the diameters a are the same, it is preferable to enlarge the area of the 2 nd electrode 22, and to enlarge the area of the 2 nd electrode 22 in the head 20. In the present invention, the ratio of the area of the at least one 2 nd electrode 22 to the area of the circle of the diameter a is preferably a value exceeding the value of type 5. More preferably a value of type 1, i.e., a value of 0.155 or more.

[ modified examples ]

While the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be implemented in various other embodiments. For example, the present invention may be implemented by modifying the above-described embodiments as follows. The above-described embodiment and the following modifications may be combined.

In the present invention, when the 1 st signal and the 2 nd signal are alternately output, the 2 nd electrode 22 used when the 1 st signal is output may be changed every time the timing for outputting the 1 st signal is reached. For example, the control unit 101 may output the 1 st signal in the order of outputting the 1 st signal from the group of the 1 st electrode 21 and the 2 nd electrode 22A, the 2 nd signal from the group of the 1 st electrode 21 and the 2 nd electrode 22B, the 2 nd signal from the group of the 1 st electrode 21 and the 2 nd electrode 22C, and the 1 st signal from the group of the 1 st electrode 21 and the 2 nd electrode 22C, and repeat the output order. In addition, the 2 nd electrode 22 grouped with the 1 st electrode 21 may be changed every time a predetermined time elapses during the period in which the 1 st signal is output.

In the present invention, when the 1 st signal and the 2 nd signal are alternately output, the group of the 2 nd electrodes 22 that output the 2 nd signal may be changed every time the timing of outputting the 2 nd signal is reached. For example, the control unit 101 may output the 1 st signal, output the 2 nd signal in the group of the 2 nd electrode 22A and the 2 nd electrode 22B, output the 1 st signal, output the 2 nd signal in the group of the 2 nd electrode 22B and the 2 nd electrode 22C, output the 1 st signal, output the 2 nd signal in the order of the 2 nd electrode 22C and the 2 nd electrode 22A, and repeat the output order. In addition, in the period in which the 2 nd signal is output, the group of the 2 nd electrode 22 that outputs the 2 nd signal may be changed every time a predetermined time elapses. In the configuration in which the group of 2 nd electrodes 22 that output the 2 nd signal is changed every time the timing for outputting the 2 nd signal is reached, the 2 nd electrode 22 used in outputting the 1 st signal may be changed every time the timing for outputting the 1 st signal is reached.

The 3 rd electrode 24 is formed of a conductive material and is used for outputting the 1 st signal to the body. The 3 rd electrode 24 is formed in an annular elliptical shape having an elliptical outer edge, and is disposed at the center of the head 20. The 4 th electrode 25A and the 4 th electrode 25B are formed of a material having conductivity, and are electrodes used when the 1 st signal is output and when the 2 nd signal is output. The 4 th electrode 25A and the 4 th electrode 25B are formed in a shape in which a part of an annular ellipse is cut off, so as to project in a direction opposite to the direction of the 3 rd electrode 24, and are arranged outside the outer periphery of the 3 rd electrode 24 when viewed from the front concentric with the 3 rd electrode 24.

The distance D14 from the outer periphery of the 3 rd electrode 24 to the inner periphery of the 4 th electrode 25A and the distance D15 from the outer periphery of the 3 rd electrode 24 to the inner periphery of the 4 th electrode 25B are the same distance (D14 ═ D15). The circumferential end surface of the 4 th electrode 25A is parallel to the circumferential end surface of the 4 th electrode 25B, and the distance D24 between the circumferential end surface of the 4 th electrode 25A and the circumferential end surface of the 4 th electrode 25B is longer than the distance D14 (distance D15). The height from the surface of the insulating portion 23 to the upper surfaces of the 4 th electrode 25A and the 4 th electrode 25B is higher than the height from the surface of the insulating portion 23 to the upper surface of the 3 rd electrode 24.

The control unit 101 outputs the 1 st signal so that a current flows between the 4 th electrode 25A and the 4 th electrode 25B and the 3 rd electrode 24 through the body. In addition, the control unit 101 outputs the 2 nd signal so that a current flows between the 4 th electrode 25A and the 4 th electrode 25B through the body. In the present modification, when the 1 st signal is output, the distance between the electrodes for outputting the 1 st signal is also a distance suitable for heating the skin (D14, D15), and therefore the skin does not become difficult to be heated. Further, when the 2 nd signal is output, the distance between the 4 th electrode 25A and the 4 th electrode 25B which output the 2 nd signal becomes a distance (D24) suitable for outputting the 2 nd signal, and therefore, when the 2 nd signal is output, the unpleasant feeling of the skin can be suppressed.

In the present invention, the shape of the 1 st electrode 21 is a circular ring shape, and the 2 nd electrode 22 is an arc shape, but other shapes are also possible. Fig. 13 (a) is a diagram showing the 5 th electrode 26 as a modification of the 1 st electrode 21, and the 6 th, and 6

th electrodes

27A, 27B, and 27C as a modification of the 2 nd electrode 22. The 5 th electrode 26 is an example of the 1 st electrode of the present invention, and the 6 th electrode 27A, the 6 th electrode 27B, and the 6 th electrode 27C are examples of the 2 nd electrode of the present invention. In short, in the present invention, the 1 st electrode and the plurality of 2 nd electrodes arranged outside the 1 st electrode and at positions to be rotated (120 ° in the above example) with respect to the center of the 1 st electrode may be provided.

The 5 th electrode 26 is formed of a conductive material and is used for outputting the 1 st signal to the body. The 5 th electrode 26 is formed in a triangular shape and is disposed at the center of the head 20. The 5 th electrode 26 may have a through hole at the center. The 5 th electrode 26 may have an arc-shaped apex instead of an acute angle. The 6 th electrode 27A, the 6 th electrode 27B, and the 6 th electrode 27C are formed of a material having conductivity, and are electrodes used when the 1 st signal is output and when the 2 nd signal is output. The 6 th, and 6

th electrodes

27A, 27B, and 27C are formed in a trapezoidal shape, and are arranged parallel to the sides of the 5 th electrode 26 when viewed from the front.

The distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27A, the distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27B, and the distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27C are the same distance. In addition, the end surface of the 6 th electrode 27A close to the 6 th electrode 27B is parallel to the end surface of the 6 th electrode 27B close to the 6 th electrode 27A, and the distance between these end surfaces is longer than the distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27A. The end face of the 6 th electrode 27B close to the 6 th electrode 27C is parallel to the end face of the 6 th electrode 27C close to the 6 th electrode 27B, and the distance between these end faces is longer than the distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27A. The end face of the 6 th electrode 27C close to the 6 th electrode 27A is parallel to the end face of the 6 th electrode 27A close to the 6 th electrode 27C, and the distance between these end faces is longer than the distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27A. The height from the surface of the insulating portion 23 to the upper surfaces of the 6 th electrode 27A, the 6 th electrode 27B, and the 6 th electrode 27C is higher than the height from the surface of the insulating portion 23 to the upper surface of the 5 th electrode 26.

The control section 101 outputs the 1 st signal so that a current flows between the 5 th electrode 26 and the 6 th, and 6

th electrodes

27A, 27B, and 27C via the body. The control unit 101 outputs the 2 nd signal so that a current flows through the body in any one of the group of the 6 th electrode 27A and the 6 th electrode 27B, the group of the 6 th electrode 27B and the 6 th electrode 27C, and the group of the 6 th electrode 27C and the 6 th electrode 27A.

In the present invention, instead of the 5 th electrode 26, the 6 th electrode 27A, the 6 th electrode 27B, and the 6 th electrode 27C, as shown in fig. 13 (B), a 5 th electrode 26A, a 6 th electrode 27D, a 6 th electrode 27E, and a 6 th electrode 27F may be used. The flat-surface insulating portion 23A is formed of an insulating material. The 5 th electrode 26A is formed of a material having conductivity, and is an electrode used when outputting the 1 st signal to the body. The 5 th electrode 26A is formed in an annular triangular shape and is disposed at the center of the head 20. The 6 th, and 6

th electrodes

27D, 27E, and 27F are formed of a material having conductivity, and are used when outputting the 1 st signal and when outputting the 2 nd signal. The 6 th, and 6

th electrodes

27D, 27E, and 27F are formed in an arc shape and are disposed at positions facing the apexes of the 5 th electrode 26.

The distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27D, the distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27E, and the distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27F are the same distance. In addition, the end surface of the 6 th electrode 27D close to the 6 th electrode 27E is parallel to the end surface of the 6 th electrode 27E close to the 6 th electrode 27D, and the distance between these end surfaces is longer than the distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27D. The end face of the 6 th electrode 27E close to the 6 th electrode 27F is parallel to the end face of the 6 th electrode 27F close to the 6 th electrode 27E, and the distance between these end faces is longer than the distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27D. The end face of the 6 th electrode 27F close to the 6 th electrode 27D is parallel to the end face of the 6 th electrode 27D close to the 6 th electrode 27F, and the distance between these end faces is longer than the distance from the outer periphery of the 5 th electrode 26 to the 6 th electrode 27D. The height from the surface of the insulating portion 23 to the upper surfaces of the 6 th electrode 27D, the 6 th electrode 27E, and the 6 th electrode 27F is higher than the height from the surface of the insulating portion 23 to the upper surface of the 5 th electrode 26.

th electrodes

27D, 27E, and 27F via the body. The control unit 101 outputs the 2 nd signal so that a current flows through the body in any one of the group of the 6 th electrode 27D and the 6 th electrode 27E, the group of the 6 th electrode 27E and the 6 th electrode 27F, and the group of the 6 th electrode 27F and the 6 th electrode 27D.

In the above embodiment, the cosmetic device 1 alternately outputs the 1 st signal and the 2 nd signal according to the operation of the user, but may output only the 1 st signal according to a predetermined operation and output only the 2 nd signal according to another predetermined operation.

In the present invention, the thickness of the 2 nd electrode 22 may be smaller than the thickness of the 1 st electrode 21, and the surface of the 1 st electrode 21 may be closer to the insulating portion 23 than the surface of the 2 nd electrode 22.

In the present invention, a vibration motor may be disposed in the main body 10, and the control unit 101 may control the vibration motor to vibrate the head 20 when the 1 st signal or the 2 nd signal is output.

In the present invention, the light source for irradiating the skin with light may be disposed inside or outside the inner peripheral surface of the 1 st electrode 21. As the light source, for example, an LED is used. The LED may be an LED that outputs blue light having a peak wavelength of 465nm, for example. This blue light is well absorbed by hemoglobin and is therefore effective for red faces and red blood cells. The color can increase lymph fluid function and blood circulation function. Further, the effect of relaxing stress and tension can be obtained.

The LED of the light source may be an LED that outputs green light having a peak wavelength of 522nm, for example. Since this green light has higher skin permeability than the blue light, it is absorbed by hemoglobin in the deep dermis and is effective for red blood cells in the deep dermis. The product is suitable for improving dry skin and removing speckle due to sebum and pigment deposition. In addition, a relaxing effect of the body and mind can be obtained.

The LED of the light source may be an LED that outputs yellow light having a peak wavelength of 592nm, for example. The yellow light has higher skin permeability than red light and orange light, and is effective for spots on the skin surface. In addition, the color is also suitable for improving aged skin and problem skin.

The LED of the light source may be an LED that outputs orange light having a peak wavelength of 609nm, for example. The orange light is absorbed by melanin and hemoglobin, and is effective in brown color spot. In addition, the color is important for improving skin and acne skin and optimizing metabolic function.

The LED of the light source may be an LED that outputs red light having a peak wavelength of 641nm, for example. The red light has high skin permeability, reacts with melanin in deep skin, and is effective for deep speckle of skin. In addition, the composition is suitable for improvement of reddish skin, and can achieve effects of promoting blood circulation, etc., in combination with the coloring effect of red. In addition, it is also suitable for so-called intensive care.

The LED of the light source may be an LED that outputs infrared light having peak wavelengths of 870nm and 940nm, for example. The infrared light reacts with moisture, melanin, and hemoglobin in the deep part of the dermis, and is effective in increasing collagen. In detail, it has an activating effect on fibroblasts, and can efficiently produce a novel collagen. The light source may be configured to output a plurality of lights with a configuration including 2 or more LEDs.

Although the head 20 is provided with the projection 40 in the above-described embodiment, the projection 40 may not be provided on the head 20.

In the above-described embodiment, the angle of inclination of the center line of the insulating portion 23 perpendicular to the surface of the insulating portion 23 is fixed with respect to the rotation axis of the head 20, but the angle of inclination of the center line of the insulating portion 23 perpendicular to the surface of the insulating portion 23 may be changed with respect to the rotation axis of the head 20.

In the present invention, the frequency of the 2 nd signal may be changed in accordance with an operation performed by the button 31. In the above embodiment, the frequency of the 2 nd signal is 70kHz, but may be changed to another frequency such as 5kH, 100kHz, 5Hz, 10Hz, or the like according to the operation of the button 31.

In the present invention, the size of the head 20, the 1 st electrode 21, and the 2 nd electrode 22 may be changed to a size suitable for use in the body, and the 1 st signal and the 2 nd signal may be output to the legs and the abdomen.

In the above embodiment, the cosmetic device 1 alternately outputs the 1 st signal and the 2 nd signal, but may output only the 1 st signal at a predetermined cycle. In addition, the cosmetic apparatus 1 may output only the 2 nd signal at a predetermined cycle.

In the present invention, the height from the surface of the insulating portion 23 to the surface of the 1 st electrode 21 may be the same as the height from the surface of the insulating portion 23 to the surface of the 2 nd electrode 22.

In the above-described embodiment, the distance D11, the distance D12, and the distance D13 are shorter than the distance D21, the distance D22, and the distance D23, but the distance D11, the distance D12, and the distance D13 may be longer than the distance D21, the distance D22, and the distance D23. In this configuration, when outputting the 2 nd signal, the output unit 102 outputs the 2 nd signal in any one of the group of the 1 st electrode 21 and the 2 nd electrode 22A, the group of the 1 st electrode 21 and the 2 nd electrode 22B, and the group of the 1 st electrode 21 and the 2 nd electrode 22C. In this configuration, when the output unit 102 outputs the 1 st signal, the output unit may output the 1 st signal in any one of the group of the 2 nd electrode 22A and the 2 nd electrode 22B, the group of the 2 nd electrode 22B and the 2 nd electrode 22C, and the group of the 2 nd electrode 22C and the 2 nd electrode 22A.

Description of the reference symbols

1: a cosmetic device; 10: a main body; 20: a head; 21: a 1 st electrode; 22A, 22B, 22C: a 2 nd electrode; 23: an insulating section; 24: a 3 rd electrode; 25A, 25B: a 4 th electrode; 31: a button; 32: an LED; 26: a 5 th electrode; 27A to 27E: a 6 th electrode; 40A, 40B: a hemispherical electrode; 101: a control unit; 102: an output unit.

Claims

1. A cosmetic device having:

the 1 st electrode, its periphery is round, oval or triangular;

three 2 nd electrodes, the three 2 nd electrodes are positioned around the 1 st electrode, the distance between the three 2 nd electrodes and the 1 st electrode is within a predetermined 1 st range, and the distance between the three 2 nd electrodes is within a predetermined 2 nd range; and

and an output unit which outputs a 1 st signal through the 1 st electrode and at least one of the 2 nd electrodes and outputs a 2 nd signal having a frequency different from that of the 1 st signal through the plurality of the 2 nd electrodes.

2. The cosmetic device of claim 1,

the distance from the 1 st electrode to the 2 nd electrode is shorter than the distance between the adjacent 2 nd electrodes.

3. The cosmetic device of claim 2,

the frequency of the 2 nd signal is lower than the frequency of the 1 st signal.

4. The cosmetic device according to any one of claims 1 to 3,

an end face of the 2 nd electrode facing an end face of another adjacent 2 nd electrode is parallel to the end face of the another 2 nd electrode.

5. The cosmetic device according to any one of claims 1 to 4,

the output unit changes the group of the 2 nd electrode that outputs the 2 nd signal at a predetermined timing.

6. The cosmetic device of claim 5,

the output section switches the group of the 2 nd electrode that outputs the 2 nd signal each time the 2 nd signal is output.

7. The cosmetic device according to any one of claims 1 to 6,

the surface of the 2 nd electrode protrudes from the surface of the 1 st electrode.

8. The cosmetic device according to any one of claims 1 to 7,

the 2 nd electrode is an arc shape protruding in a direction opposite to the 1 st electrode.