WO2022185978A1

WO2022185978A1 - Cosmetic method and cosmetic device

Info

Publication number: WO2022185978A1
Application number: PCT/JP2022/007048
Authority: WO
Inventors: 貴裕鈴木; 達也芹沢; 達也飯野
Original assignee: 株式会社資生堂
Priority date: 2021-03-03
Filing date: 2022-02-21
Publication date: 2022-09-09
Also published as: CN116916860A; JPWO2022185978A1

Abstract

A cosmetic method comprising a first step for heating the skin for a first period at a first temperature higher than the temperature of the skin, and a second step for cooling to the skin for a second period shorter than the first period at a second temperature lower than the temperature of the skin, the temperature difference between the first temperature and the second temperature being at least 25°C, the first and second steps being repeated alternately, after which the first step is performed.

Description

BEAUTY METHOD AND BEAUTY DEVICE

The present disclosure relates to beauty methods and beauty equipment.

Due to the spread of air conditioners, modern people are said to have a reduced ability to regulate skin temperature through blood circulation, as the environment temperature is kept constant. In addition, lack of exercise and a decrease in the rate of hot bathing have combined to reduce opportunities for vasodilation, and modern people tend to be in a state of constant vasoconstriction. Permanent vasoconstriction has adverse effects on the skin condition, such as the lack of nutrients in the skin of the face, etc., which slows turnover, the decrease in elasticity of the skin due to the decrease in blood vessel density, and the dullness of the skin.

In order to improve such vasoconstriction, there has been a technique to adjust the skin temperature by forcibly applying heat treatment with a facial device or the like to dilate the blood vessels. For example, Patent Literature 1 discloses a beauty device that emits steam (warm mist) to care the skin surface. Further, Patent Document 2 discloses a beauty device that applies thermal stimulation to a user.

JP 2011-239984 A JP 2014-236839 A

However, conventional techniques for adjusting skin temperature require long-term heating.

An object of the present invention is to provide a beauty method that efficiently regulates skin temperature.

In order to solve the above problems, one aspect of the present disclosure includes a first step of heating the skin for a first period at a first temperature higher than the temperature of the skin, and a second temperature lower than the temperature of the skin. a second step of cooling the skin for a second period shorter than one period, wherein a temperature difference between the first temperature and the second temperature is 25° C. or more; and repeatedly alternately, and then performing the first step.

According to one aspect of the present disclosure, it is possible to efficiently adjust the skin temperature.

It is a figure which shows the usage condition of the beauty equipment which implement|achieves the beauty method of embodiment. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the beauty equipment (1st Embodiment) which implement|achieves the beauty method of embodiment. It is the figure which looked at the beauty equipment of FIG. 2 from the bottom face side. 4 is a cross-sectional view taken along line AA of FIG. 3; FIG. 3 is a block diagram showing the internal configuration of the beauty device (first embodiment) of FIG. 2. FIG. It is a figure which shows the timing chart of the 1st process and 2nd process in the cosmetic method of embodiment. It is the figure which looked at the modification (1st modification) of the beauty equipment of 1st Embodiment from the bottom face side. It is the figure which looked at the modification (2nd modification) of the beauty equipment of 1st Embodiment from the bottom face side. It is a figure which shows the beauty equipment (2nd Embodiment) which implement|achieves the beauty method of embodiment. FIG. 10 is a diagram showing a state in which a second step is being performed in the beauty device of FIG. 9; FIG. 10 is a block diagram showing the internal configuration of the beauty device (second embodiment) of FIG. 9; It is a flow chart for carrying out the beauty treatment method of the embodiment.

An embodiment of the present invention will be described with reference to the drawings. It should be noted that the same reference numerals may be attached to the common parts in each drawing, and the description thereof may be omitted. Also, the scale of each member in each drawing may differ from the actual scale.

In this specification, a three-dimensional orthogonal coordinate system with three axial directions (X direction, Y direction, and Z direction) is used, the width direction (or radial direction) of the beauty device is defined as the X direction, and the vertical width direction (or radial direction) is defined as the X direction. is the Y direction, and the height direction is the Z direction. Further, the upper side indicates the upper side of the beauty device in the height direction, and the lower side indicates the lower side of the beauty device in the height direction.

<Beauty equipment>
FIG. 1 is a diagram showing a usage state of a beauty device that implements a beauty method according to an embodiment. FIG. 2 is a diagram showing the beauty equipment of the first embodiment that implements the beauty method of the embodiment. 3 is a bottom view of the beauty device of FIG. 2, and FIG. 4 is a cross-sectional view taken along the line AA of FIG. FIG. 5 is a block diagram showing the internal configuration of the beauty device (first embodiment) of FIG. 2. As shown in FIG.

The beauty device 100 that implements the beauty method of this embodiment has a contact surface CS that contacts a predetermined skin area SA. Although the predetermined skin area is not particularly limited, it is, for example, the cheek area SA of the user P (FIG. 1). The beauty device 100 of the present embodiment is used by the user P bringing the beauty device 100 into contact with the user P's cheek region SA.

The beauty device 100 of the first embodiment has a main body 10 and a finger hook portion 20. The main body 10 is formed of a cylindrical insulating case. The main body 10 incorporates an assembly BA, which will be described later. The finger hook portion 20 is formed on the top surface 11 of the main body 10 and constitutes a handle for mounting the beauty device 100 on the user P. As shown in FIG.

The bottom surface 12 of the main body 10 constitutes a contact surface CS that contacts the skin area SA. The beauty device 100 is operated by the user P by applying the contact surface CS of the beauty device 100 to the skin area SA (FIG. 1).

In this embodiment, the finger hook portion 20 of the beauty device 100 is formed in a ring shape. The beauty device 100 is worn by the user P by inserting the user P's finger into the finger hook portion 20 . Note that the form of the beauty device 100 is not limited to this. The user P may be able to hold the beauty device 100 .

The assembly BA built into the main body 10 of the beauty device 100 has a heating section 30, a cooling section 40, a skin sensor 50, a microcomputer 60, and a power supply 70 (Figs. 3 and 4). Among them, the heating unit 30 is an example of a heating unit that constitutes a part of the beauty device of the present embodiment. Also, the cooling unit 40 is an example of a cooling unit that constitutes a part of the beauty equipment of the present embodiment.

The heating unit 30 has a function of heating the skin area SA. The heating unit 30 is arranged on the contact surface CS. The arrangement position of the heating unit 30 is not particularly limited. In this embodiment, the heating part 30 is arranged in the circumferential direction on the bottom surface 12 side of the main body 10 (FIGS. 3 and 4).

The heating unit 30 has a heating plate 31, a thermistor 32, and a heater 33 (Figs. 4 and 5).

The warm plate 31 forms part of the contact surface CS and contacts the skin area SA. The warm plate 31 is connected to the heater 33 and transfers heat from the heater 33 to the skin area SA.

The thermistor 32 is formed above the warm plate 31 and constitutes a temperature sensor that measures the temperature of the warm plate 31 . The thermistor 32 is communicably connected to the microcomputer 60 while being covered with the heater 33 . The thermistor 32 measures the heat generation temperature of the heater 33 and transmits the temperature information to the microcomputer 60 .

The heater 33 heats the hot plate 31 . A heater 33 is formed above the warm plate 31 and incorporates a thermistor 32 . The heater 33 includes a heater drive circuit 33A communicatively connected to the microcomputer 60. A heater drive circuit 33A is controlled by the microcomputer 60, and the heater 33 heats the warm plate 31 (FIGS. 4 and 5). The heater 33 can use a Peltier device employed in the cooling unit 40, which will be described later.

The cooling unit 40 has a function of cooling the skin area SA. The cooling part 40 is arranged side by side with the heating part 30 on the contact surface CS. In this embodiment, the cooling part 40 is arranged at the center of the contact surface CS with a predetermined gap from the heating part 30 in the radial direction. Thereby, the cooling section 40 is surrounded by the heating section 30 (FIGS. 3 and 4).

The cooling unit 40 includes a cold plate 41, a thermistor 42, a Peltier element 43, a radiator 44, and a fan 45 (Figs. 4 and 5).

The cold plate 41 forms part of the contact surface CS and contacts the skin area SA. The cold plate 41 is connected to the Peltier element 43 and transfers heat from the Peltier element 43 to the skin area SA. Specifically, the cold plate 41 is cooled by the Peltier element 43 and absorbs (absorbs) the heat of the skin area SA (FIG. 4).

The thermistor 42 constitutes a temperature sensor that measures the temperature of the cold plate 41 . A thermistor 42 is formed above the cold plate 41 . The thermistor 42 is communicably connected to the microcomputer 60 while being covered with the Peltier element 43 . The thermistor 42 measures the cooling temperature of the Peltier device 43 and transmits the temperature information to the microcomputer 60 .

The Peltier element 43 constitutes a cooler that cools the cold plate 41 . A Peltier element 43 is formed above the cold plate 41 and incorporates a thermistor 42 . The Peltier element 43 includes a Peltier drive circuit 43A communicably connected to the microcomputer 60. As shown in FIG. A Peltier drive circuit 43A of the Peltier device 43 is controlled by the microcomputer 60 to cool the cold plate 41 (FIGS. 4 and 5).

Since the Peltier element can control the heat absorption by controlling the current, by adopting such a Peltier element in the cooling unit 40, highly accurate and responsive cooling control can be performed. In addition, since the Peltier element has a small volume, the use of such a Peltier element in the cooling unit 40 facilitates miniaturization of the beauty device 100 .

A radiator 44 is formed above the Peltier element 43 and connected to the Peltier element 43 and the fan 45 . The radiator 44 absorbs heat staying in the Peltier element 43 and releases the absorbed heat to the fan 45 (FIGS. 4 and 5).

The fan 45 is formed above the radiator 44 and connected to the radiator 44 . The fan 45 discharges the heat emitted by the radiator 44 to the outside of the assembly BA (FIGS. 4 and 5).

The skin sensor 50 is arranged on the contact surface CS. The arrangement position of the skin sensor 50 is not particularly limited. In this embodiment, the skin sensor 50 is arranged on the lower surface side of the warming plate 31 of the warming section 30 (FIG. 4). The skin sensor 50 has a function of detecting the state of the skin area SA while the contact surface CS is in contact with the skin area SA.

The mode of the skin sensor 50 is not particularly limited, and may be, for example, a temperature sensor, an acceleration sensor, a position sensor, etc., and may be a combination of two or more of these. In this embodiment, when the skin sensor 50 is a temperature sensor, the state of the skin area SA is the temperature of the skin area SA, and the skin sensor 50 contacts the skin area SA to detect the temperature of the skin area SA. .

The microcomputer 60 is arranged above the heating section 30 with the heating section 30 and the lower partition wall LB separated from each other. The microcomputer 60 is arranged below the radiator 44 of the cooling section 40 with the cooling section 40 separated from the upper partition wall UB.

The microcomputer 60 has a central processing unit (CPU) and memory (both not shown). The microcomputer 60 is connected to the heating section 30 , the cooling section 40 , the skin sensor 50 , the power source 70 and the operation switch 80 and can control the beauty equipment 100 .

The CPU of the microcomputer 60 controls the heating unit 30, the cooling unit 40, the skin sensor 50, and the power supply 70, and performs various processes such as calculation, storage, transfer, input, and output of information. Note that the CPU may be configured separately from the microcomputer 60 .

The memory of the microcomputer 60 constitutes a temporary storage device that stores information that is calculated when the CPU executes processing. Note that the beauty device 100 may include auxiliary devices (not shown) such as a hard disk drive (HDD) and a modular jack. It should be noted that the microcomputer 60 is an example of a control section that constitutes a part of the beauty equipment of this embodiment.

The power supply 70 is arranged above the cooling section 40 (fan 45). The power supply 70 has a battery 71 , a power supply circuit 72 , a charge/discharge control circuit 73 and a charging terminal 74 .

The battery 71 is electrically connected to the charge/discharge control circuit 73 and constitutes the power source of the beauty device 100 .

The power supply circuit 72 is energized and connected to the microcomputer 60 and the charge/discharge control circuit 73 . In the power supply circuit 72 , power discharged from the battery 71 is supplied to the beauty device 100 via the charge/discharge control circuit 73 .

The charge/discharge control circuit 73 is electrically connected to the battery 71, the power supply circuit 72, and the charging terminal 74. The charge/discharge control circuit 73 charges and discharges the battery 71 under the control of the microcomputer 60 .

The charging terminal 74 is electrically connected to the charge/discharge control circuit 73 . At the charging terminal 74 , electric power for charging the battery 71 is taken in from the outside through the charging/discharging control circuit 73 .

The operation switch 80 is communicably connected to the microcomputer 60 . By operating the operation switch 80, the user P can turn on/off the beauty device 100, switch processing specifications, and the like.

In the beauty device 100 of this embodiment, the contact area of the heating section 30 is larger than the contact area of the cooling section 40 . Specifically, the contact area of the heating unit 30 corresponds to the area of the surface of the warm plate 31 of the heating unit 30 facing the skin area SA, and the contact area of the cooling unit 40 corresponds to the cold plate of the cooling unit 40. 41 corresponds to the area of the surface facing the skin area SA. Also, in bottom view, the area of the warm plate 31 of the heating unit 30 is larger than the area of the cold plate 41 of the cooling unit 40 (FIGS. 3 and 4).

In this embodiment, the contact area of the heating unit 30 is larger than the contact area of the cooling unit 40, so that the frequency of heating is higher than the frequency of cooling for a given skin area SA. Thereby, in this embodiment, it is possible to heat and cool the skin surface with one beauty device. Furthermore, since the ratio of heating by the heating unit 30 to cooling by the cooling unit 40 is high, the skin temperature can be efficiently adjusted by expansion and contraction of blood vessels.

Further, in the beauty device 100 of the present embodiment, the ratio of the contact area of the cooling section 40 to the contact area of the heating section 30 is preferably 0.1 or more and 0.35 or less, more preferably 0.12 or more. 0.33, more preferably 0.15 or more and 0.3 or less. In the present embodiment, by setting the ratio of the contact area of the cooling section 40 to the contact area of the heating section 30 to be 0.1 or more and 0.35 or less, the skin temperature is more efficiently adjusted by expansion and contraction of blood vessels. be able to.

In the beauty device 100 of the present embodiment, under the control of the microcomputer 60, the heating section 30 heats the skin area SA at a first temperature T1 higher than the temperature Tp of the skin area SA for the first period P1. Further, the cooling unit 40 cools the skin area SA at a second temperature T2 lower than the temperature Tp of the skin area SA for a second period P2 shorter than the first period P1. Furthermore, the temperature difference between the first temperature T1 and the second temperature T2 is set to 25° C. or more, heating by the heating unit 30 and cooling by the cooling unit 40 are alternately repeated, and then heating by the heating unit 30 I do.

In this specification, the temperature Tp of the skin area SA indicates the surface temperature of the skin area SA and is 30°C to 32°C. A first temperature T1 higher than the temperature Tp of the skin area SA indicates a temperature higher than 32°C. A second temperature T2 lower than the temperature Tp of the skin area SA indicates a temperature lower than 32°C.

Specifically, as shown in FIG. 6, under the control of the microcomputer 60, the heating unit 30 performs step 1 and the cooling unit 40 performs step 2. In this embodiment, step 1 is first turned on, and the skin area SA is heated at a first temperature T1 higher than the temperature Tp of the skin area SA for a first period P1. Next, when step 1 is turned off, step 2 is turned on to cool the skin area SA at a second temperature T2 lower than the temperature Tp of the skin area SA for a second period P2 shorter than the first period P1.

Next, when step 2 is turned off, step 1 is turned on again, and the skin area SA is heated at a first temperature T1 higher than the temperature Tp of the skin area SA for a first period P1. When step 1 is turned off again, step 2 is turned on, and the skin area SA is cooled at a second temperature T2 lower than the temperature Tp of the skin area SA for a second period P2 shorter than the first period P1. Thus, step 1 and step 2 are alternately repeated.

In this embodiment, the ON-OFF cycle is performed 10 times in step 1, and the ON-OFF cycle is performed 9 times in step 2. At this time, when the ninth cycle of ON-OFF is performed in step 2, step 2 is completed, and thereafter, the tenth cycle of ON-OFF is performed in step 1, and step 1 is completed.

In the present embodiment, the heating by the heating unit 30 and the cooling by the cooling unit 40 are alternately and repeatedly performed, and then the heating by the heating unit 30 is performed. The state can be maintained for a long time, and the skin temperature can be adjusted more efficiently. Further, in the present embodiment, by controlling the temperature difference between the first temperature T1 and the second temperature T2 to be 25° C. or more, the blood vessels can be expanded and contracted efficiently.

In this embodiment, the skin sensor 50 constitutes a temperature sensor and detects the temperature of the skin area SA. Here, the temperature detected by the skin sensor 50 is the surface temperature of the skin area SA. In this embodiment, the microcomputer 60 controls the first temperature T1 and the second temperature T2 based on the temperature of the skin area SA detected by the skin sensor 50 .

Specifically, for example, when the temperature of the skin area SA detected by the skin sensor 50 is higher than 32° C. while Step 1 is being performed by the heating unit 30, Step 1 is terminated and the cooling unit 40 is performed. If the temperature of the skin area SA detected by the skin sensor 50 is lower than 32° C. while Step 2 is being performed by the cooling unit 40, Step 2 is terminated and Step 1 is performed by the heating unit 30. be done.

Thus, by controlling the first temperature T1 and the second temperature T2 based on the temperature of the skin area SA detected by the skin sensor 50, the temperature of the skin area SA detected by the skin sensor 50 Heating by the heating unit 30 and cooling by the cooling unit 40 can be switched. Accordingly, in the present embodiment, expansion and contraction of blood vessels are performed in a short period of time, and skin temperature can be adjusted more efficiently.

FIG. 7 is a view of the first modification of the beauty device of the first embodiment viewed from the bottom side, and FIG. 8 is a view of the second modification of the beauty device of the first embodiment viewed from the bottom side. be. Here, the second modified example of FIG. 8 differs from the example of FIG. 3 and the first modified example of FIG. 7 in that the bottom view shape is a quadrangle. 7 and 8, portions common to the first embodiment are denoted by the same reference numerals as in FIG. 3, and descriptions thereof are omitted.

In the first modified example and the second modified example of the first embodiment, the heating section 30 is composed of a plurality of

heating portions

30A and 30B, and the

heating portions

30A and 30B and the cooling portion 40 are arranged in a predetermined direction. They are alternately arranged in the (Y direction). In this embodiment, the heating section 30 is composed of two

heating portions

30A and 30B, and these

heating portions

30A and 30B are arranged side by side in one direction (Y direction) with the cooling portion 40 interposed therebetween. (Figs. 7 and 8).

The number of heating portions constituting the heating section 30 is not limited to two, and may be three or more. If the heating unit 30 is composed of three or more heating parts, the cooling part 40 may be composed of a plurality of cooling parts (not shown). In this case, three or more heating portions and two or more cooling portions may be alternately arranged in one direction (Y direction).

In the present embodiment, the

heating portions

30A and 30B of the heating portion 30 and the cooling portion 40 are alternately arranged in one predetermined direction (the Y direction), so that the contact surface CS of the beauty device 100 is, for example, the skin. When the beauty device 100 is moved in one direction (the Y direction) in which the heating unit 30 and the cooling unit 40 are aligned while being in contact with the area SA, the heating unit 30 and the cooling unit 40 move toward the skin area SA. They can be contacted alternately. As a result, the heating by the heating unit 30 and the cooling by the cooling unit 40 can be switched, and expansion and contraction of the blood vessels can be repeated, and the skin temperature can be adjusted more efficiently.

Further, in the modified examples (first modified example and second modified example) of the first embodiment, the

heating portions

30A and 30B are arranged at both ends in one predetermined direction (Y direction). Specifically, the heating portion 30A is arranged on the end portion 12A side of the bottom surface 12 (contact surface CS) of the main body 10, and the heating portion 30B is arranged on the end portion 12B side of the bottom surface 12 (contact surface CS) of the main body 10. are placed.

With such a configuration, in the present embodiment, the contact surface CS of the beauty device 100 is in contact with the skin area SA, and the beauty device 100 is moved in one direction (the Y direction) in which the heating unit 30 and the cooling unit 40 are aligned. When moved, the heating section 30 first contacts the skin area SA, then the cooling section 40 contacts, and finally the heating section 30 contacts.

As a result, the heating unit 30 and the cooling unit 40 alternately come into contact with the skin area SA, switching between heating by the heating unit 30 and cooling by the cooling unit 40, and heating by the heating unit 30 is switched. Can be terminated hot. Therefore, in the present embodiment, the dilated state of blood vessels after use of the beauty device 100 can be maintained for a long time, and the skin temperature can be adjusted more efficiently.

Further, in the modified examples of the first embodiment (first modified example and second modified example), the skin sensor 50 constitutes an acceleration sensor and detects the acceleration of the beauty device 100 . Here, the acceleration detected by the skin sensor 50 indicates the change rate of the speed of the beauty device 100 per unit time. In this embodiment, the microcomputer 60 controls the first period P1 and the second period P2 based on the acceleration of the beauty device 100 detected by the skin sensor 50 .

Specifically, for example, when the acceleration of the beauty device 100 detected by the skin sensor 50 is higher than a predetermined acceleration while Step 1 is being performed by the heating unit 30, Step 1 is terminated and the cooling unit Step 2 by 40 is performed. Further, when the acceleration of the beauty device 100 detected by the skin sensor 50 is higher than the predetermined acceleration while the step 2 is being performed by the cooling unit 40, the step 2 is terminated and the step 1 by the heating unit 30 is performed. executed.

In this way, by controlling the first period P1 and the second period P2 based on the acceleration of the beauty device 100 detected by the skin sensor 50, according to the acceleration of the beauty device 100 detected by the skin sensor 50, Heating by the heating unit 30 and cooling by the cooling unit 40 can be switched. Accordingly, in the present embodiment, expansion and contraction of blood vessels are performed in a short period of time, and skin temperature can be adjusted more efficiently.

FIG. 9 is a diagram showing a beauty device of the second embodiment that implements the beauty method of the embodiment. FIG. 10 is a block diagram showing the internal configuration of the beauty device (second embodiment) of FIG. 9. As shown in FIG. 11 is a diagram showing a state in which the second step is being performed in the beauty device of FIG. 9. FIG. In FIGS. 9 and 10, portions common to the first embodiment are denoted by the same reference numerals as in FIGS. 4 and 5, and descriptions thereof are omitted.

In the beauty device 100 of the second embodiment, the cooling unit 40 is movable with respect to the heating unit 30 in the direction (Z direction) perpendicular to the contact surface CS (FIGS. 9 and 10). In this embodiment, the beauty device 100 has a movable portion 90 . The movable part 90 has a motor 91 , a cam 92 and a spring mechanism 93 .

The motor 91 is arranged above the cooling section 40 (fan 45). A motor 91 rotatably fixes a cam 92 and constitutes a drive source for the cam 92 . The motor 91 includes a motor drive circuit 91A communicably connected to the microcomputer 60 (FIG. 11).

The motor 91 is provided with a position sensor 91B that detects the rotational position of the motor 91 . The position sensor 91B is communicably connected to the microcomputer 60 . The microcomputer 60 controls the rotation of the motor 91 via the motor drive circuit 91A based on the positional information of the motor 91 detected by the position sensor 91B (FIG. 11).

The cam 92 is rotatably fixed to the motor 91 via a rotating shaft 92A. The shape of the cam 92 is not particularly limited, and for example, it has a substantially elliptical shape in plan view as in the present embodiment. The cam 92 is arranged above the cooling section 40 (fan 45) and rotatably contacts the cooling section 40 (fan 45). When the cam 92 rotates, the cooling part 40 descends, the cold plate 41 moves in the lower space LS, and the surface of the cold plate 41 of the cooling part 40 becomes a part of the contact surface CS of the beauty device 100 (Fig. 9, Fig. 10).

The spring mechanism 93 is arranged between the radiator 44 of the cooling section 40 and the upper partition wall UB. The form of the spring mechanism 93 is not particularly limited, and for example, a coiled spring can be used. The spring mechanism 93 is urged in the vertical direction (Z direction) when the cooling unit 40 is lowered by the rotation of the cam 92 (FIGS. 9 and 10). Then, when the cam 92 rotates further and returns to the original position (the state before the cooling section 40 descends), the biasing force of the spring mechanism 93 is released, the cooling section 40 ascends, and the cooling section 40 descends. Return to the previous state (Fig. 9).

In the present embodiment, due to such descent and rise of the cooling unit 40, the heating unit 30 is in the state before the cooling unit 40 is lowered or in the state after the cooling unit 40 is lowered and returned to the original position. heats the skin area SA. Further, in a state where the cooling unit 40 descends and the surface of the cold plate 41 of the cooling unit 40 becomes a part of the contact surface CS of the beauty device 100, the cooling unit 40 cools the skin area SA.

In this embodiment, the heating by the heating unit 30 and the cooling by the cooling unit 40 can be switched by alternately contacting the heating unit 30 and the cooling unit 40 with the skin area SA. . As a result, in the present embodiment, expansion and contraction of blood vessels can be repeated, and skin temperature can be adjusted more efficiently.

<Beauty method>
FIG. 12 is a flow chart for implementing the cosmetic method of the embodiment. In the beauty method of this embodiment, steps S1 to S4 are executed. The cosmetic method of the present embodiment is not particularly limited, but is implemented, for example, by implementing the cosmetic device 100 described above.

In step S1, the first step is executed. The first step is to warm the skin at a first temperature above the temperature of the skin for a first period of time. Here, the skin temperature indicates the surface temperature of the skin area SA and is 30° C. to 32° C. (FIG. 1). A first temperature above the skin temperature indicates a temperature above 32°C.

Specifically, step S<b>1 is executed by the heating unit 30 of the beauty device 100 . The heating unit 30 heats the skin area SA at a first temperature T1 higher than the temperature Tp of the skin area SA for the first period P1 (FIGS. 3 to 10).

In step S2, the second step is executed. The second step cools the skin at a second temperature below the temperature of the skin for a second period less than the first period. A second temperature below the skin temperature indicates a temperature below 32°C. Also, the temperature difference between the first temperature and the second temperature is 25° C. or more.

Specifically, step S2 is executed by the cooling unit 40 of the beauty device 100 . The cooling unit 40 cools the skin area SA at a second temperature T2 that is lower than the temperature Tp of the skin area SA and has a temperature difference of 25° C. or more from the first temperature T1 for a second period P2 that is shorter than the first period P1. (Figs. 3-10).

In step S3, the first step (step S1) and the second step (step S2) are alternately repeated. Specifically, in the beauty device 100, heating by the heating unit 30 and cooling by the cooling unit 40 are alternately switched under the control of the microcomputer 60, and each step is performed multiple times (FIG. 6).

In step S4, after step S3, the skin is heated at a first temperature higher than the skin temperature for a first period. That is, after alternately repeating the first step (step S1) and the second step (step S2), the first step (step S1) is finally performed. Specifically, for example, when the first step (step S1) and the second step (step S2) are alternately performed a plurality of times, after step 2 is completed, step 1 is performed and steps S1 to S4 are performed. ends (FIGS. 6 and 12).

In the cosmetic method of the present embodiment, the heating in the first step (step S1) and the cooling in the second step (step S2) are alternately and repeatedly performed, and then the heating in the first step is performed. The dilated state of the blood vessels after use of the device 100 can be maintained for a long time, and the skin temperature can be adjusted more efficiently.

In the cosmetic method of this embodiment, it is preferable to perform at least three cycles, with the first step and the second step being one cycle. In this embodiment, for example, nine cycles are performed with the first period P1 and the second period P2 as one cycle (FIG. 6). Such control in this embodiment is performed by the microcomputer 60 of the beauty device 100 .

In this embodiment, by performing at least three cycles with the first step and the second step as one cycle, the heating in the first step and the cooling in the second step can be alternately switched three or more times. Accordingly, in the present embodiment, expansion and contraction of blood vessels are performed in a short period of time, and skin temperature can be adjusted more efficiently.

In the cosmetic method of this embodiment, one cycle described above is performed within 80 seconds. In this embodiment, under the control of the microcomputer 60, one cycle of the first period P1 and the second period P2 is performed within 80 seconds (FIGS. 6 and 12). In the present embodiment, by performing one cycle within 80 seconds in this manner, expansion and contraction of blood vessels are performed in a short period of time, and skin temperature can be adjusted more efficiently.

In the cosmetic method of this embodiment, at least the above three cycles are performed within 300 seconds. In this embodiment, under the control of the microcomputer 60, 9 cycles are performed with the first period P1 and the second period P2 as one cycle, and the 9 cycles are performed within 300 seconds (FIGS. 6 and 12). In this embodiment, since at least three cycles are performed within 300 seconds, the expansion and contraction of blood vessels can be performed in a shorter time, and the skin temperature can be adjusted more efficiently.

In the beauty method of this embodiment, the first period is at least twice as long as the second period. In this embodiment, the microcomputer 60 controls the first period P1 to be twice or more the second period P2 (FIGS. 6 and 12). In the present embodiment, the first period is controlled to be twice or more the second period, so that the ratio of the heating by the first step to the cooling by the second step is high, so that the skin due to expansion and contraction of blood vessels The temperature can be adjusted efficiently.

In the beauty method of this embodiment, the first period is 70 seconds or less. In this embodiment, the microcomputer 60 controls the first period P1 to be 70 seconds or less (FIGS. 6 and 12). In the present embodiment, by controlling the first period to 70 seconds or less, the blood vessels are expanded in a short time, and the skin temperature can be adjusted more efficiently.

In the beauty method of this embodiment, the second period is 10 seconds or less. In this embodiment, the microcomputer 60 controls the second period P2 to be 10 seconds or less (FIGS. 6 and 12). In the present embodiment, by controlling the second period to be 10 seconds or less, the blood vessels expanded by heating are contracted in a short period of time, and the skin temperature can be adjusted more efficiently.

In the beauty treatment method of this embodiment, the first temperature is 45°C or lower. In the present embodiment, the microcomputer 60 controls the first temperature T1 in the heating section 30 to 45° C. or less (FIGS. 6 and 12). In the present embodiment, by controlling the first temperature to 45° C. or less, the blood vessels expand without damaging the skin, so that the skin temperature can be adjusted more efficiently by expanding and contracting the blood vessels. .

In the beauty method of this embodiment, the second temperature is 1°C or higher. In the present embodiment, the microcomputer 60 controls the second temperature T2 in the cooling section 40 to 1° C. or less (FIGS. 6 and 12). In this embodiment, the blood vessels contract without damaging the skin, so the skin temperature can be adjusted more efficiently by expanding and contracting the blood vessels.

Hereinafter, the present invention will be described in more detail using examples. Examples and comparative examples were evaluated by the following tests.

[Test conditions]
Using various beauty equipment, the subject was alternately and repeatedly subjected to step 1 (heating treatment) and step 2 (cooling treatment). In step 1, the heating temperature was 40°C±2°C, and in step 2, the cooling temperature was 10°C±2°C, 15°C±2°C, and 20°C±2°C. After the subject was placed in a constant temperature room at 20° C. and 45% temperature for 30 minutes, Steps 1 and 2 were performed only on the subject's right cheek, and the rate of increase in blood flow was calculated. A 30 mm×30 mm square on the right cheek centering on the intersection of the outer corner of the right eye and the right nostril of the subject was used as the processing area for the heating treatment and the cooling treatment. For the heating treatment and the cooling treatment, electrodes were used, each of which was controlled at a target temperature of ±2° C. after applying 0.2 ml of ion-exchanged water to the treatment area. Blood flow was measured using a blood flow imager (model: OZ-2STD) manufactured by Omega Wave Co., Ltd. The calculation method is to calculate the difference in blood flow between the right cheek (the cheek on the heating and cooling side) and the left cheek (the right cheek and the cheek on the side that is neither heated nor cooled) from the average blood flow value in the resting state. calculated as a percentage.

[processing time]
The treatment time was measured when step 1 (heating treatment) and step 2 (cooling treatment) were performed, and time evaluation based on the treatment time was performed according to the following criteria.
A: Less than 60 seconds B: 60 seconds or more and less than 120 seconds C: 120 seconds or more and less than 300 seconds D: 300 seconds or more

[Increased blood flow]
The blood flow was measured when Step 1 (heating treatment) and Step 2 (cooling treatment) were carried out, and the blood flow was evaluated based on the increase in blood flow according to the following criteria.
A: The rate of increase immediately after the end of treatment is 30% or more, and the increase of 10% or more continues for 30 minutes or more after the end of treatment. B: The rate of increase is 30% or more immediately after the end of treatment, and the increase of 10% or more is treated. More than 10 minutes after the end of treatment and continued for 20 minutes C: The increase rate immediately after the end of the treatment is 30% or more, and the increase of 10% or more continues until 10 minutes after the end of the treatment D: The increase rate immediately after the end of the treatment is 30% or less or the rate of increase 10 minutes after the end of treatment is 10% or less

[Comprehensive evaluation]
Comprehensive evaluation of treatment time evaluation and blood flow increase evaluation was performed. Comprehensive evaluation was performed by multiplying the time evaluation and the blood flow evaluation with A=3, B=2, C=1, and D=0 for each of the time evaluation and the blood flow evaluation, and performed according to the following criteria. In addition, according to the following criteria, A to C were evaluated as good, and D was evaluated as unsatisfactory.
A: 6-9
B: 4-5
C: 1-3
D: 0

Examples and comparative examples are described below.

[Example 1]
The temperature of step 1 (heating treatment) is 40 ° C., the time is 10 seconds, the number of times is 10 times, the temperature of step 2 (cooling treatment) is 10 ° C., the time is 2 seconds, the number of times is 9 times, and the starting step and The ending process was designated as process 1. Table 1 shows the conditions and results.

[Example 2]
Evaluation was performed in the same manner as in Example 1, except that the time of step 1 (heating treatment) was 20 seconds and the number of times was 5 times, and the time of step 2 (cooling treatment) was 4.5 seconds and the number of times was 4 times. . Table 1 shows the conditions and results.

[Example 3]
Evaluation was performed in the same manner as in Example 1, except that the temperature in step 2 (cooling treatment) was 15°C. Table 1 shows the conditions and results.

[Example 4]
Evaluation was carried out in the same manner as in Example 1 except that the number of times of step 1 (heating treatment) was set to 5, the temperature of step 2 (cooling treatment) was set to 15° C., and the number of times was set to 4. Table 1 shows the conditions and results.

[Example 5]
Evaluation was performed in the same manner as in Example 2, except that the temperature in step 2 (cooling treatment) was 15°C. Table 1 shows the conditions and results.

[Comparative Example 1]
Example except that the time of step 1 (heating treatment) was 150 seconds and 300 seconds, the number of times was 2 times, and the temperature of step 2 (cooling treatment) was 18 ° C., the time was 45 seconds, and the number of times was 1 time. It was evaluated in the same manner as 1. Table 1 shows the conditions and results.

[Comparative Example 2]
The time of step 1 (heating treatment) was 60 seconds, the number of times was 1 time, the temperature of step 2 (cooling treatment) was 13 ° C., the time was 60 seconds, the number of times was 1 time, and the ending process was step 2. was evaluated in the same manner as in Example 1. Table 1 shows the conditions and results.

[Comparative Example 3]
Evaluation was performed in the same manner as in Example 1, except that the number of times of step 1 (heating treatment) was set to 2 and the number of times of step 2 (cooling treatment) was set to 1. Table 1 shows the conditions and results.

From Table 1, the temperature of step 1 (heating treatment) is 40 ° C., the time is 10 seconds to 20 seconds, the number of times is 5 to 10 times, and the temperature of step 2 (cooling treatment) is 10 ° C. to 15 ° C., time is 2 seconds to 4.5 seconds, the number of times is 4 to 9 times, step 1 and step 2 are alternately repeated, and both the start step and the end step are set to step 1, the overall evaluation was good. (Examples 1-5).

On the other hand, under the condition that Step 2 (cooling treatment) was performed once, the overall evaluation was poor (Comparative Examples 1 to 3).

Although the embodiments of the present invention have been described above, the present invention is not limited to specific embodiments, and various modifications and changes are possible within the scope of the invention described in the claims.

This application claims priority based on Japanese Patent Application No. 2021-33830 filed on March 3, 2021, the entire contents of which are incorporated herein.

REFERENCE SIGNS LIST 100 beauty device 10 main body 11 top surface 12

bottom surface

12A, 12B end portion 20 finger hook portion BA assembly CS contact surface LS lower space 30

heating portion

30A, 30B heating portion 31 heating plate 32 thermistor 33 heater 33A heater driving circuit 40 cooling Part 41 Cold plate 42 Thermistor 43 Peltier element 43A Peltier drive circuit 44 Radiator 45 Fan 50 Skin sensor 60 Microcomputer UB Upper partition LB Lower partition 70 Power supply 71 Battery 72 Power supply circuit 73 Charge/discharge control circuit 74 Charging terminal 80 Operation switch 90 Movable part 91 motor 91A motor drive circuit 91B position sensor 92 cam 92A rotating shaft 93 spring mechanism P user SA skin area

Claims

a first step of warming the skin at a first temperature above the temperature of the skin for a first period of time;
a second step of cooling the skin at a second temperature below the temperature of the skin for a second period shorter than the first period;
A temperature difference between the first temperature and the second temperature is 25° C. or more,
Repeating the first step and the second step alternately,
After that, performing the first step,
beauty method.
Performing at least 3 cycles with the first step and the second step as one cycle,
The beauty method according to claim 1.
Performing the 1 cycle within 80 seconds,
The beauty method according to claim 2.
performing said at least 3 cycles within 300 seconds;
The cosmetic method according to claim 2 or 3.
The first period is twice or more the second period,
The cosmetic method according to any one of claims 1 to 4.
wherein the first period of time is 70 seconds or less;
The cosmetic method according to any one of claims 1 to 5.
wherein the second period is 10 seconds or less;
The cosmetic method according to any one of claims 1 to 6.
wherein the first temperature is 45° C. or lower;
The cosmetic method according to any one of claims 1 to 7.
wherein the second temperature is 1° C. or higher;
The cosmetic method according to any one of claims 1 to 8.
a control unit;
a heating unit that heats the skin at a first temperature higher than the temperature of the skin for a first period under the control of the control unit;
a cooling unit configured to cool the skin at a second temperature lower than the temperature of the skin for a second period shorter than the first period under the control of the control unit;
The control unit
controlling the temperature difference between the first temperature and the second temperature to be 25° C. or higher;
Repeatedly alternately control to heat the skin by the heating unit and control to cool the skin by the cooling unit,
After that, the heating unit controls the heating of the skin,
Beauty Equipment.