JP6851258B2 - Beauty equipment - Google Patents

Description

The present invention relates to a beauty device that provides skin care by supplying an electric current to the skin surface through a cotton mat impregnated with a beauty liquid.

This type of beauty device is disclosed, for example, in Patent Document 1 previously proposed by the applicant. The beauty device of Patent Document 1 includes a skin electrode (electrode body) and a grip electrode, and the skin surface is brought into contact with the skin surface of a portion where skin care is performed while the grip electrode is in contact with the skin surface. A positive electrode or negative electrode pulse current (skin stimulation current) is supplied to the device. A cotton mat (sheet body) can be attached to the skin electrode, and when a pulse current is applied to the skin surface with the cotton mat impregnated with a beauty liquid, fine stains that have entered the wrinkles and pores of the skin surface can be removed. Skin care can be performed by permeating the skin surface with a beauty liquid that is adsorbed or impregnated on a cotton mat.

Japanese Unexamined Patent Publication No. 2014-184001

In the beauty device of Patent Document 1, conduction between the skin electrode and the skin surface is established through the beauty liquid impregnated in the cotton mat. However, the cosmetic liquid impregnated in the cotton mat dries or adheres to the skin surface, and the impregnated amount gradually decreases as the skin care progresses. When the impregnation amount of the cosmetic liquid decreases, the conduction resistance between the skin electrode and the skin surface increases, and it is not possible to accurately supply an electric current to the skin surface. In addition, it becomes difficult to supply an optimum current for skin care to the skin surface, and it is not possible to obtain a uniform beauty effect on the entire skin surface to be skin-care. These problems can be avoided by the user performing skin care while checking the impregnation amount of the beauty liquid, but it is difficult to judge the impregnation amount of the beauty liquid at a glance. Therefore, it is necessary to check the cotton mat by touching it with a finger, which is troublesome.

An object of the present invention is to detect the impregnation amount of the beauty liquid in the sheet body to determine the impregnation state of the beauty liquid, and to increase the conduction resistance between the electrode body and the skin surface. The purpose of the present invention is to provide a beauty device that can be prevented from occurring and that can eliminate the troublesome operation of checking the beauty liquid by the user.
An object of the present invention is to be able to accurately perform skin care while supplying an optimum skin irritation current to the skin surface based on the determined impregnation state of the cosmetic liquid, and therefore, the skin surface to be cared for. The purpose of the present invention is to provide a beauty device capable of obtaining a uniform beauty effect as a whole.

The beauty device of the present invention includes a skin head 2 provided with an electrode body 25 to which a skin stimulating current is supplied at one end of a main body case 1 that also serves as a grip, and a sheet body P capable of impregnating a liquid is the electrode body 25. It can be mounted so as to cover the electrode surface 25a. The skin head 2 is provided with a liquid amount detecting unit 27 for detecting the impregnated amount of the liquid impregnated in the sheet body P. The liquid amount detecting unit 27 in the present invention can employ a known means capable of detecting the amount of water contained in the measurement target, such as an optical type, a capacitance type, or an electric resistance type.

The main body case 1 and / or the skin head 2 is provided with a notification body 16 that generates at least one of sound, light, and vibration. When the liquid amount detecting unit 27 detects that the impregnated amount of the liquid impregnated in the sheet body P is equal to or less than the reference value, the notification body 16 may be activated to call the user's attention. it can. In addition, in the above-mentioned invention, the aspect in which "below" and "below" are replaced with each other, and the aspect in which "greater than or equal to" and "exceeding" are replaced with each other are also included in the technical scope of the present invention. Further, it is also possible to provide a plurality of notification bodies 16 and perform notification by combining a plurality of sound, light, and vibration. The above-mentioned "reference value" is not limited to one, and may be provided in plurality, and in the case of a plurality of "reference values", the operating state of the notification body 16 can be different in each case.

The skin stimulation current supplied to the electrode body 25 is controlled to increase or decrease based on the amount of impregnation of the liquid detected by the liquid amount detecting unit 27. As the amount of the liquid impregnated in the sheet body P decreases, the skin stimulating current supplied to the electrode body 25 can be increased.

Before the liquid amount detecting unit 27 detects that the impregnated amount of the liquid impregnated in the sheet body P is equal to or less than the reference value, the skin stimulating current supplied to the electrode body 25 is increased. Can be done.

The main body case 1 and / or the skin head 2 is provided with a stimulus intensity display 29 that generates at least one of sound, light, and vibration. When the skin stimulation current supplied to the electrode body 25 is equal to or higher than the reference current value, the stimulation intensity display body 29 can be operated. It should be noted that a plurality of stimulus intensity display bodies 29 may be provided, and a plurality of sound, light, and vibration may be combined for notification. The above-mentioned "reference current value" is not limited to one, and may be provided in plurality, and in the case of a plurality of "reference current values", the operating state of the stimulation intensity display body 29 can be different in each case.

The liquid amount detecting unit 27 includes a measuring unit 46 provided on the electrode body 25, an electromagnetic wave irradiating unit 38 that irradiates an electromagnetic wave for inspection toward the sheet body P which is a unit to be measured that is in close contact with the measuring unit 46, and an electromagnetic wave irradiation unit 38. A receiving unit 39 that receives an electromagnetic wave reflected by the measuring unit and outputs an electrical output value according to the amount of the received wave is included. When the electrical output value of the wave receiving unit 39 is equal to or higher than a predetermined output value, it can be determined that the amount of the cosmetic liquid impregnated in the sheet body P is small, and the notification body 16 can be operated. .. The term "electromagnetic wave" as used herein is a concept including electromagnetic waves in an ultraviolet region, a visible light region, an infrared region, and a radio region having a wavelength longer than that of the infrared region.

The skin stimulation current supplied to the electrode body 25 is controlled to increase or decrease based on the electrical output value output by the receiving unit 39. As the electrical output value output from the wave receiving unit 39 increases, the skin stimulation current supplied to the electrode body 25 can be increased.

It is preferable that the liquid amount detecting unit 27 is arranged inside the skin head 2.

A window opening 45 is provided on the electrode surface 25a, and the measuring unit 46 of the liquid amount detecting unit 27 is exposed from the window opening 45. The liquid amount detecting unit 27 can take a form of detecting the impregnation amount of the sheet body P, which is the unit to be measured that is in close contact with the measuring unit 46.

In the front view facing the electrode surface 25a, the measuring unit 46 is arranged inside the outer line of the electrode surface 25a. A form in which the liquid amount detecting unit 27 functions as a skin abnormality detecting unit 71 that detects an abnormality on the skin surface, which is a unit to be measured that is in close contact with the measuring unit 46, when the sheet body P is not attached. Can be taken.

In the beauty device according to the present invention, the skin head 2 is provided with a liquid amount detecting unit 27 for detecting the amount of the liquid impregnated in the sheet body P mounted so as to cover the electrode surface 25a of the electrode body 25. .. According to such a beauty device, a state in which the beauty liquid (liquid) is fully impregnated or the impregnation amount of the beauty liquid is reduced based on the impregnation amount of the liquid detected by the liquid amount detection unit 27. The impregnation state of the beauty liquid in the sheet body P, such as the state, can be determined on the beauty device side. From the determined impregnated state, the cosmetological device can take various measures such as encouraging the user to replenish the cosmetological liquid or changing the control method of the cosmetological device. From the above, according to the present invention, it is possible to avoid the occurrence of a problem due to an increase in the conduction resistance between the electrode body 25 and the skin surface. Furthermore, it is possible to eliminate the troublesome operation of checking the beauty liquid by the user.

According to the beauty device that alerts the user when the liquid amount detecting unit 27 detects that the impregnated amount of the liquid impregnated in the sheet body P is equal to or less than the reference value, the notification body 16 operates. It is possible to immediately notify the user that the impregnation amount of the beauty liquid is decreasing and prompt the user to replenish the beauty liquid. As a result, it is possible to prevent a problem due to an increase in conduction resistance between the electrode body 25 and the skin surface. Further, since the notification body 16 automatically alerts the user by reducing the impregnation amount of the cosmetic liquid, it is not necessary for the user to confirm the cosmetic liquid. It also has the effect of preventing unnecessary replenishment of the cosmetological liquid, prolonging the care time, and preventing the cosmetological liquid from being wasted.

As the amount of the liquid impregnated in the sheet body P decreases, the skin stimulating current supplied to the electrode body 25 is increased. According to such a beauty device, an increased skin stimulating current is supplied to the skin surface in conjunction with an increase in conduction resistance due to a decrease in the impregnation amount of the beauty liquid, so that the supply of the skin stimulating current to the skin surface is insufficient. Can be supplemented. As a result, it is possible to accurately perform skin care while supplying an optimum skin irritation current to the skin surface, and therefore, a uniform beauty effect can be obtained over the entire skin surface to be cared for. Further, since the current is automatically increased by reducing the impregnation amount of the cosmetic liquid, it is possible to save the user the trouble of switching the skin stimulation current.

Before the liquid amount detecting unit 27 detects that the impregnation amount of the liquid impregnated in the sheet body P is equal to or less than the reference value, the skin stimulation current supplied to the electrode body 25 is increased. According to such a beauty device, immediately after the start of skin care, an increased skin stimulating current is supplied to the skin surface in conjunction with an increase in conduction resistance due to a decrease in the impregnation amount of the beauty liquid. It is possible to accurately compensate for the insufficient supply of skin stimulation current. As a result, during skin care, it is possible to perform accurate skin care while constantly supplying the optimum skin irritation current to the skin surface, and therefore, uniform beauty over the entire skin surface to be cared for. The effect can be obtained.

The stimulation intensity display body 29 is configured to operate when the skin stimulation current supplied to the electrode body 25 is equal to or higher than the reference current value. According to such a beauty device, it is possible to call the user's attention by displaying that the impregnation amount of the beauty liquid is reduced on the stimulus intensity display body 29, and to promote the replenishment operation of the beauty liquid. it can. Further, when the sheet body P is replenished with the beauty liquid, the skin stimulation current output from the current source 61 is reduced, so that the power consumption of the beauty equipment can be suppressed accordingly.

The electromagnetic wave for inspection was irradiated from the electromagnetic wave irradiation unit 38 toward the sheet body P, which is the unit to be measured, which is in close contact with the measurement unit 46, and the receiving unit 39 that received the reflected wave at that time responded to the amount of reception. The liquid amount detection unit 27 is configured to output electrical output values such as current and voltage. According to the liquid amount detecting unit 27, the larger the impregnated amount of the cosmetic liquid impregnated in the sheet body P in close contact with the measuring unit 46, the smaller the reflected wave amount, and conversely, the smaller the amount of the cosmetic liquid. The amount of reflected waves increases. This is because the electromagnetic wave for inspection travels straight through the cosmetic liquid and leaks to the sheet body P side. As a result, the impregnation state of the cosmetic liquid can be determined based on a simple and quantitative standard of the electrical output value corresponding to the amount of the liquid impregnated in the sheet body P, so that the configuration of the liquid amount detection unit 27 is simplified. At the same time, the impregnation state of the cosmetic liquid can always be accurately determined. Further, when the electrical output value of the wave receiving portion 39 is equal to or higher than the predetermined electrical output value, it is determined that the amount of the cosmetic liquid impregnated in the sheet body P is small, and the notification body 16 is operated. It is possible to immediately alert the user that the impregnation amount of the liquid is decreasing and encourage the user to replenish the cosmetic liquid.

The increase in the electrical output value output from the wave receiving portion 39 is due to the decrease in the cosmetic liquid impregnated in the sheet body P, which is the continuity between the electrode body 25 and the skin surface. It means that the resistance is increasing. Therefore, if the skin stimulation current supplied to the electrode body 25 is increased as the electrical output value output from the wave receiving portion 39 increases, the space between the electrode body 25 and the skin surface is increased. The conduction resistance of the skin can be judged by a quantitative standard called an electrical output value, and an appropriately increased skin stimulation current can be supplied to the skin surface. As a result, it is possible to accurately perform skin care while constantly supplying the optimum skin irritation current to the skin surface, and therefore, it is possible to obtain a uniform beauty effect over the entire skin surface to be cared for.

When the liquid amount detecting unit 27 is arranged inside the skin head 2, the skin head 2 can protect the liquid amount detecting unit 27 and prevent the liquid amount detecting unit 27 from being damaged due to contact with another object. Further, the liquid amount detection unit 27 can be isolated from the liquid impregnated in the sheet body P to prevent malfunction due to the electromagnetic wave irradiation unit 38 and the wave receiving unit 39 getting wet.

According to the liquid amount detecting unit 27 that exposes the measuring unit 46 from the window opening 45 provided on the electrode surface 25a and detects the impregnation amount of the sheet body P that is the measured unit that is in close contact with the measuring unit 46, The part to be measured can surely reflect the electromagnetic wave for inspection, and the received wave can be received by the receiving part 39. Further, the sheet body P can block external electromagnetic waves to prevent the external electromagnetic waves from being received by the receiving unit 39. Therefore, the electrical output value corresponding to the amount of the liquid impregnated in the sheet body P can be accurately obtained, false detection due to disturbance or the like can be prevented, and the impregnated state of the cosmetic liquid can be reliably determined.

When the sheet body P is not attached, the liquid amount detecting unit 27 is configured to function as a skin abnormality detecting unit 71 that detects an abnormality on the skin surface to be measured. In the beauty device of the present invention, when the sheet body P is not attached, the measured portion in close contact with the measuring portion 46 is the skin surface. The amount of reflected waves reflected on the user's skin surface increases as the skin becomes whiter and decreases as the skin becomes darker. The state of the skin surface facing the measuring unit 46 can be determined. Therefore, according to such a beauty device, by applying the beauty liquid directly to the skin surface without using the sheet body P to perform skin care, the skin surface condition is confirmed by the skin abnormality detection unit 71, and the skin surface is checked. It is possible to perform skin care by supplying a skin stimulating current to the skin. Further, when the measuring unit 46 is arranged inside the outer line of the electrode surface 25a, when the electrode surface 25a is brought into contact with the skin surface, the measuring unit 46 faces the skin surface, so that the condition of the skin surface is abnormal. Skin care can be performed while surely checking with the detection unit 71.

It is a partial cross-sectional plan view of the skin head of the beauty device which concerns on Example 1 of this invention. It is a front view of a beauty appliance. It is a side view of a beauty device. FIG. 2 is a cross-sectional view taken along the line AA in FIG. It is a block diagram of the control system of a beauty device. It is a schematic circuit diagram of a liquid amount detection part. It is a flowchart which shows the control procedure of a care level and a notification level in an ion introduction / derivation mode. It is a timing chart which shows the temporal change of the operating state of each part in an ion introduction / derivation mode. It is a flowchart which shows the control procedure of a reference voltage and a care level in a skin abnormality detection mode. It is a timing chart which shows the temporal change of the operation state of each part in a skin abnormality detection mode. It is explanatory drawing of the skin condition determination area which concerns on an output voltage. It is a timing chart which shows the temporal change of the operating state of each part in the ion introduction / derivation mode of the beauty apparatus which concerns on Example 2 of this invention.

(Example 1) FIGS. 1 to 11 show Example 1 of the beauty device according to the present invention. The front / rear, left / right, and up / down in this embodiment follow the crossing arrows shown in FIGS. In both figures, the beauty appliance includes a main body case 1 that also serves as a vertically long grip, and a pair of front and rear skin heads 2 and 3 provided on the upper part of the main body case 1. The main body case 1 is formed in a hollow case shape by a front case 1a and a rear case 1b which are separately formed in the front and rear parts. The upper end of the main body case 1 constitutes a head support portion 4 that supports a pair of skin heads 2 and 3, and the lower half side of the main body case 1 excluding the head support portion 4 constitutes a grip portion 5.

Inside the main body case 1, a vertically long control board 8 facing the front wall of the front case 1a and a battery 9 electrically connected to the control board 8 are housed. A power switch 10 for turning on the power, a mode selection switch 11 for switching the drive mode, and a level changeover switch 12 for switching the drive strength are mounted on the lower part of the front surface of the control board 8. Three switch buttons 13 to 15 are provided on the front surface of the grip portion 5 of the main body case 1, and the user can operate the corresponding switches 10 to 12 by pushing the switch buttons 13 to 15 inward. Further, below each of the switches 10 to 12, a speaker 17 constituting the notification body 16 is mounted. A mode display unit 18 that emits and displays the drive mode and a level display unit 19 that emits and displays the drive intensity are mounted on the upper part of the front surface of the control board 8. Both display units 18 and 19 are each composed of a plurality of LEDs, and a translucent window facing these LEDs is provided in the front case 1a. The user can visually recognize both the display units 18 and 19 through these translucent windows.

The skin head 3 on the rear side is housed in the head support portion 4 of the main body case 1 in a state where only the rear surface is exposed from the rear case 1b. A Peltier element 20 and a heat sink 21 are housed inside the skin head 3, the skin head 3 is bonded to the endothermic surface of the Peltier element 20, and the heat sink 21 is bonded to the heat generating surface. The Peltier element 20 is connected to the control board 8 via a lead wire (not shown). When a drive current is supplied from the control board 8 to the Peltier element 20, the skin head 3 is cooled through the heat absorbing surface thereof, and the heat generating surface of the Peltier element 20 is dissipated through the heat sink 21. The rear skin head 3 is used in a "cooling mode" for cooling the user's skin surface.

The beauty device according to this embodiment has an "ion derivation mode", an "ion introduction mode", and a "skin abnormality detection mode" in addition to the above-mentioned "cooling mode". The skin head 2 is used. Immediately after the user presses the power switch 10 to turn on the power, the "ion derivation mode" is selected, and the mode display unit 18 indicates that the mode is being selected. Each time the mode selection switch 11 is pressed from this state, the drive mode is switched in the order of "ion introduction mode", "skin abnormality detection mode", and "cooling mode", and at the same time, the display of the mode display unit 18 is switched. When the mode selection switch 11 is pressed in the "cooling mode", the mode returns to the "ion derivation mode" again.

In FIG. 1, the skin head 2 on the front side is a head case 24 made of a round tubular plastic molded product, a skin electrode (electrode body) 25 attached to the front end of the head case 24, and a base end portion of the head case 24. It is composed of a head display unit 26 arranged on the outer peripheral surface, a liquid amount detecting unit 27 housed in the head case 24, a vibrator 28, and the like. The head case 24 is integrally fixed to the upper front surface of the front case 1a, and the gap between the two 1a and 24 is watertightly sealed by an O-ring (not shown). A vibrator 28 made of an eccentric motor is housed behind the head case 24. In this embodiment, the speaker 17 that outputs the notification sound is the notification body 16, but the speaker 17 outputs a pulse current (skin stimulation current) equal to or higher than the reference current value from the current source 61 described later. Also serves as a stimulus intensity display body 29 for displaying. Further, the head display unit 26 that displays light emission may be the notification body 16 and the stimulation intensity display body 29, or the vibrator 28 that generates vibration may be the notification body 16 and the stimulation intensity display body 29. Further, a plurality of notification bodies 16 (stimulus intensity display body 29) may be operated at the same time.

The skin electrode 25 is made of a round cap-shaped press-molded product made of a titanium plate material, and is integrated with the head case 24 by covering the front end of the head case 24 from the front. The front surface of the skin electrode 25 is an electrode surface 25a, and the peripheral wall of the skin electrode 25 is formed in a slightly constricted shape forward. The gap between the outer peripheral surface of the front end of the head case 24 and the inner surface of the skin electrode 25 is watertightly sealed with an O-ring (not shown). In the head case 24 behind the skin electrode 25, the cap mounting portion 31 is formed to bulge in a circumferential shape. In FIGS. 2 and 3, reference numeral 32 is a ring-shaped holding cap, and the cotton pad (sheet body) P impregnated with the liquid is fixedly held by the cap 32. The cotton pad P in the mounted state covers the entire surface of the electrode surface 25a (see FIG. 1). Instead of the cotton pad P, another sheet body that can be impregnated with a liquid, for example, a porous body such as a sponge or a sheet body made of paper can be used.

The head display portion 26 is arranged on the outer peripheral surface of the head case 24 between the cap mounting portion 31 and the front case 1a. In FIG. 1, the head display unit 26 is an endless ring-shaped light guide ring 33 along the outer peripheral surface of the head case 24, and four full-color types that are embedded in the wall surface of the head case 24 and face the light guide ring 33. It is composed of the LED 34 of the above. The light guide ring 33 is made of a polycarbonate resin, an acrylic resin, or the like having excellent light diffusivity, and the light emitted from the LED 34 is repeatedly reflected in the light guide ring 33, so that the entire light guide ring 33 is substantially uniform. Lights up. The outer diameter of the light guide ring 33 is set smaller than the outer diameter of the cap mounting portion 31. Therefore, when the user faces the electrode surface 25a on the front surface of the skin electrode 25, the light guide ring 33 itself is not blocked by the cap mounting portion 31 and is not visible to the user, and the light emitted by the light guide ring 33 is not visible to the user. Only will be visible to the user. That is, the cap mounting portion 31 functions as a light-shielding wall for eliminating the irradiation of dazzling light to the user's eyes.

In this embodiment, an optical liquid amount detecting unit 27 is arranged between the skin electrode 25 and the vibrator 28. In FIG. 4, the liquid amount detection unit 27 includes an optical substrate 37, a light emitting element (electromagnetic wave irradiation unit) 38 and a light receiving element (wave receiving unit) 39 mounted on the front surface of the optical substrate 37, and both elements 38 and 39. It is composed of a lens 40 and the like arranged on the front side. An optical path block 41 is provided on the inner surface side of the skin electrode 25, and a V-shaped optical path 42 is formed inside the optical path block 41 from the light emitting element 38 to the light receiving element 39 via the lens 40. The optical path block 41 is formed with accommodating holes 43 and 44 for accommodating the light emitting element 38 and the light receiving element 39, respectively, and the optical substrate 37 is fixed to the rear surface of the optical path block 41. A circular window opening 45 for exposing the lens 40 is formed in the center of the electrode surface 25a of the skin electrode 25, and the front surface of the lens 40 exposed from the window opening 45 is covered with the cotton pad P or the skin surface. The measuring unit 46 is in close contact with the measuring unit. In the driving state of the liquid amount detecting unit 27, the inspection light (electromagnetic wave) is emitted from the light emitting element 38 toward the center of the measuring unit 46, and the cotton pad P in close contact with the measuring unit 46 or the measured portion on the skin surface. The inspection light is reflected, and the reflected light is received by the light receiving element 39. The lens 40 is made of polycarbonate having excellent translucency.

A lens accommodating portion 49 accommodating the lens 40 is formed in a recess in the center of the front surface of the optical path block 41, and a heater 50 is arranged so as to surround the lens accommodating portion 49. The front surface of the heater 50 is adhered to the inner surface of the skin electrode 25 via an insulating double-sided tape 51. The skin electrode 25 and the heater 50 are electrically insulated by double-sided tape 51. In the vicinity of the heater 50, a temperature sensor (thermistor) 52 for measuring the surface temperature of the heater 50 (see FIG. 5) and a fuse (not shown) for cutting off the current supply to the heater 50 in the event of an abnormality are provided. Both of these are buried and held in the optical path block 41.

As shown enlarged in FIG. 4, a recess 56 including the light entering surface 55 is formed on the inner surface (rear surface) of the lens 40, and the light entering surface 55 faces from the light emitting element 38 toward the center of the measuring unit 46. It is formed so as to be orthogonal to the inspection light emitted from the lens. Here, orthogonality does not mean only a strict right angle (90 °), but is 90 ± 15 ° (75 ° or more and 105 ° or less), more preferably 90 ± 10 ° (80 ° or more and 100 ° or less). It is a concept that includes a range. In this embodiment, the angle θ between the inspection optical axis and the light entering surface 55 is set to 98.5 °, which is close to a right angle. In this way, when the light entry surface 55 at an angle θ that is perpendicular to or close to the inspection optical axis is formed on the lens 40, the amount of reflection of the inspection light on the light entry surface 55 is minimized, and the light transmittance of the lens 40 is minimized. Can be enhanced.

On the contact surface between the lens 40 and the optical path block 41, the peripheral edge of the recess 56 is circumscribed with the opening edge 57 at the bent portion of the V-shaped optical path 42. According to this, it is possible to eliminate obstacles to the inspection light, improve the utilization efficiency of the inspection light, and further increase the intensity of the lens 40. Contrary to this embodiment, when the periphery of the recess 56 in the lens 40 projects inward from the opening edge 57 of the bent portion of the optical path 42, a part of the inspection light is blocked by this projecting portion. There is a risk. Further, when the concave portion 56 is enlarged so that the peripheral edge of the concave portion 56 is separated from the opening edge 57 of the bent portion of the optical path 42, the strength of the lens 40 may be insufficient.

An O-ring 58 is mounted between the seal seat overhanging the peripheral edge of the lens 40 and the skin electrode 25. The O-ring 58 is sandwiched between the skin electrode 25 and the lens 40 and elastically deformed to seal the gap between the two 25 and 40 in a watertight manner. The front end of the lens 40 is slightly projected from the window opening 45 of the skin electrode 25 so that the peripheral edge of the window opening 45 does not easily come into contact with the skin surface, and the metal peripheral edge stimulates the skin surface. It is preventing.

A current source 61 (see FIG. 5) that outputs a pulsed current is mounted on the control board 8, and the skin electrode 25 is electrically connected to the current source 61 via a lead wire (not shown). Further, a grip electrode 62 is fixed to the rear surface of the grip portion 5 of the main body case 1 (see FIG. 3), and the grip electrode 62 is also electrically connected to the current source 61 via a lead wire (not shown). .. The supply of the pulse current from the current source 61 to the skin electrode 25 and the grip electrode 62 is controlled by the control unit 63 mounted on the control board 8. In the "ion derivation mode", a positive pulse current is supplied to the skin electrode 25, and a negative pulse current is supplied to the grip electrode 62. In the "ion introduction mode" and the "skin abnormality detection mode", a negative electrode pulse current is supplied to the skin electrode 25, and a positive pulse current is supplied to the grip electrode 62.

As shown in FIGS. 5 and 6, the control unit 63 supplies a pulse current and a heater from the current source 61 to the skin electrode 25 and the grip electrode 62 based on the input signals from the switches 10 to 12 and the temperature sensor 52. It controls the drive current supplied to the 50 and the vibrator 28, the display contents on the display units 18, 19, and 26, and the like. Further, the control unit 63 includes a timer 65 for measuring the driving time of the beauty device, and a storage unit 66 for storing a reference voltage V0 (electrical reference value: an electrical output value corresponding to a predetermined reference light amount), which will be described later. Be prepared. The light emitting element 38 is composed of a light emitting diode and is connected to the control unit 63 via a regulator 67, and a resistor (for example, 100Ω) is connected in series to the light emitting element 38 (see FIG. 6). The inspection light emitted from the light emitting element 38 is purple visible light, and its peak wavelength is about 400 nm. The light receiving element 39 is composed of a photodiode and is connected to the control unit 63 via an operational amplifier 68. Specifically, the light receiving element 39 is connected to the inverting input terminal (−) of the operational amplifier 68, and the output terminal of the operational amplifier 68 is connected to the control unit 63.

When the grip portion 5 including the grip electrode 62 is grasped by hand and the skin electrode 25 is brought into contact with the facial skin or the like, the skin electrode 25 and the grip electrode 62 are electrically conducted via the human body to form a closed loop. A similar closed loop is also formed when the cotton pad P impregnated with the beauty liquid is brought into contact with the skin surface such as the face. The control unit 63 determines whether or not the electrode surface 25a is in contact with the skin surface based on the presence or absence of the formation of the closed loop. That is, the skin electrode 25 according to this embodiment functions as a skin detection sensor that detects that the electrode surface 25a is in contact with the skin surface. The control unit 63 supplies a pulse current from the current source 61 to the skin electrode 25 and the grip electrode 62 only in the state of detecting this closed loop, and also drives the head display unit 26, the liquid amount detection unit 27, and the vibrator 28. .. In this way, when the closed loop is not formed, that is, when the electrode surface 25a is separated from the skin surface, the pulse current supply and the drive of the head display unit 26, the liquid amount detection unit 27, and the vibrator 28 are stopped. Then, the power consumption of the beauty device can be suppressed.

In the "ion derivation mode", "ion introduction mode" and "skin abnormality detection mode", the intensity of the pulse current supplied from the current source 61 to the skin electrode 25 and the grip electrode 62 each time the user presses the level changeover switch 12. However, it switches in three stages: "weak", "medium", and "strong". Further, the voltage applied by the control unit 63 to the current source 61 is automatically applied based on the drive strength set by the user with the level changeover switch 12 and the care level determined based on the detection result of the liquid amount detection unit 27. To control. In this embodiment, the applied voltage is 6 V when the drive intensity is "weak" and the care level is "1", the applied voltage is 8 V when the drive intensity is "medium" and the care level is "1", and the drive intensity is The applied voltage when the care level was "1" at "strong" was set to 10 V, and the applied voltage was set to increase by 1 V each time the care level increased by one at each drive intensity. The maximum value of the care level is "5", and the applied voltage at this time is 10V when the driving intensity is "weak", 12V when the driving intensity is "medium", and 14V when the driving intensity is "strong". ..

It should be noted that each of the above voltage values is only an example, and it is of course possible to adopt a value other than the above. The same applies to the voltage values and the like listed below. It is only an example that the drive intensity set by the level changeover switch 12 is set to 3 levels and the maximum value of the care level based on the detection result of the liquid amount detection unit 27 is set to "5", which is different from this. The number of steps and the maximum value may be adopted. Further, in this embodiment, the intensity of the pulse current is changed by changing the voltage applied to the current source 61 to a large or small value and changing the peak value of the pulse current supplied from the current source 61 to a large or small value. Instead of the method, or in combination with this method, a method of changing the duty ratio of the pulse current to a large or small value may be adopted.

The "ion derivation mode" and the "ion introduction mode" are modes in which the cotton pad P is attached to the skin electrode 25 with the holding cap 32 and the liquid amount detection unit 27 is driven, and the skin electrode 25 is impregnated with the cosmetic liquid. The cotton pad P is pressed against the skin surface to perform skin care. Therefore, in this mode, the measured portion of the liquid amount detecting unit 27 is a cotton pad P that is in close contact with the measuring unit 46. When the cotton pad P is attached, the cotton pad P is interposed between the skin electrode 25 and the skin surface, so that conduction is established through the cotton pad P impregnated with the beauty liquid, and the skin from the skin electrode 25 to the skin. A pulsed current is supplied to the surface.

Here, the operation of the liquid amount detecting unit 27 will be described. When a voltage is applied from the control unit 63 to the light emitting element 38 via the regulator 67, the element 38 emits light and the inspection light is emitted toward the cotton pad P facing the measuring unit 46. A part of the inspection light is reflected on the inner surface of the cotton pad P and received by the light receiving element 39. The amount of reflected light at this time changes depending on the amount of the cosmetic liquid impregnated in the cotton pad P. Specifically, the larger the impregnation amount of the cosmetic liquid impregnated in the cotton pad P in close contact with the measuring unit 46, the smaller the reflected light amount, and conversely, the smaller the cosmetic liquid, the larger the reflected light amount. This is because the inspection light (electromagnetic wave) travels straight through the cosmetic liquid and leaks to the cotton pad P side.

Most of the commercially available cotton pads P are white, but cotton pads P colored in red, green, blue, etc. are also commercially available. Even if the colored cotton pad P has a high surface brightness, the reflection is almost the same as that of the white cotton pad P. Therefore, the detection result of the liquid amount detecting unit 27 depending on the presence or absence of coloring of the cotton pad P is obtained. The influence of is small. Further, as a cosmetological liquid, a colored cosmetological liquid or a milky white cosmetological liquid is commercially available, but the concentration of the coloring agent or the mixed component (fine particles) contained in the cosmetological liquid is low. Therefore, the inspection light emitted from the light emitting element 38 is reflected by the colorant or the mixed component, and the light received by the light receiving element 39 is very small. There is little impact on.

As the amount of inspection light reflected by the inner surface of the cotton pad P and received by the light receiving element 39 increases, a large current flows through the light receiving element 39, and a large voltage is output from the operational amplifier 68 to the control unit 63. This output voltage V can be obtained by the product of the current I flowing through the light receiving element 39 and the resistor R (for example, 50 MΩ) arranged in the negative feedback circuit. The control unit 63 detects the output voltage V from the operational amplifier 68 as the amount of the cosmetic liquid impregnated in the cotton pad P, and determines the output voltage V and the first to fifth determinations stored in the storage unit 66 in advance. The impregnation state of the cosmetic liquid in the cotton pad P is determined by comparing the voltages K1 to K5. The determination voltages K1 to K5 are gradually set to larger values. In this embodiment, the output voltage V is set to the maximum voltage VM in a state where the cotton pad P is almost dried and it is very difficult to maintain continuity between the skin electrode 25 and the skin surface via the cosmetic liquid. (Upper limit electrical reference value: Electrical output value corresponding to a predetermined upper limit reference light amount) (for example, 3.0 V) is specified. Therefore, even if the output voltage V output from the light receiving element 39 is a voltage exceeding 3.0 V, the control unit 63 treats the output voltage V as the maximum voltage VM. The above K5 is set to a value equal to or smaller than the maximum voltage VM. In this embodiment, the amplifier circuit is configured so that the output voltage V increases as the current I increases, but conversely, the amplifier circuit may be configured so that the output voltage V decreases as the current I increases. ..

The control unit 63 determines whether the impregnation state of the beauty liquid is "plenty" or "sufficient" based on the determination voltage K1, and the impregnation state of the beauty liquid is "sufficient" based on the determination voltage K2. Judging either "sufficient" or "slightly less". Further, based on the determination voltage K3, the impregnation state of the beauty liquid is judged to be either "slightly low" or "slightly low", and the impregnation state of the beauty liquid is "slightly low" based on the judgment voltage K4. Judging either "slightly low" or "quite low". Further, based on the determination voltage K5, it is determined whether the impregnation state of the cosmetic liquid is "quite low" or "replenishment required". In this embodiment, the impregnation amount of the cosmetic liquid is determined in 6 stages based on the determination voltages K1 to K5, but a different number of stages may be adopted.

The pulse current supplied to the skin electrode 25 is controlled to increase or decrease based on the amount of the liquid impregnated detected by the liquid amount detecting unit 27. Specifically, the control unit 63 controls the current source 61 so that the pulse current supplied to the skin electrode 25 is increased according to the degree of decrease of the cosmetic liquid impregnated in the cotton pad P. .. This is because the amount of the cosmetic liquid impregnated in the cotton pad P decreases and the conduction resistance between the skin electrode 25 and the skin surface increases, and the conduction resistance between the skin electrode 25 and the skin surface increases. By increasing the pulse current as the conduction resistance increases, the shortage of pulse current supply to the skin surface is compensated.

The control unit 63 controls the output of the current source 61 to the care level "1" when the impregnation state of the cosmetic liquid is "plenty", and when it is "sufficient", the skin electrode 25 is compared with the case of "plenty". The output of the current source 61 is controlled to the care level "2" by the amount that the conduction resistance between the surface and the skin surface increases. Further, when the impregnation state of the cosmetic liquid is "slightly small", the control unit 63 increases the conduction resistance between the skin electrode 25 and the skin surface as compared with the case of "sufficient", so that the current source 61 The output of the current source 61 is controlled to the care level "3", and when "slightly low", the conduction resistance between the skin electrode 25 and the skin surface increases as compared with the case of "slightly low". Control the output to care level "4". Further, when the impregnation state of the cosmetic liquid is "replenishment required", the control unit 63 increases the conduction resistance between the skin electrode 25 and the skin surface as compared with the case where the impregnation state is "slightly less", so that the current source 61 The output of is controlled to the care level "5". The care level "0" is a care level at which the output of the current source 61 is stopped or a slight pulse current is output.

As described above, the control unit 63 determines an increase or decrease in the conduction resistance between the skin electrode 25 and the skin surface from the impregnation state of the cosmetic liquid determined based on the electrical output value output by the light receiving element 39. Then, the pulse current supplied to the skin electrode 25 is controlled to increase or decrease. That is, as the amount of the cosmetic liquid impregnated in the cotton pad P decreases, that is, as the electrical output value output by the light receiving element 39 increases, the conduction resistance between the skin electrode 25 and the skin surface increases. Judge. On the contrary, as the amount of the cosmetic liquid impregnated in the cotton pad P increases, that is, as the electrical output value output by the light receiving element 39 decreases, the conduction resistance between the skin electrode 25 and the skin surface decreases. Judge that there is.

The control unit 63 outputs a notification sound from the speaker 17 when the pulse current supplied to the skin electrode 25 is equal to or higher than the reference current value. In this embodiment, the first to third reference current values are set, and the current value of the pulse current of the care level "3" is set to the first reference current value (reference current value), and the care level is "4". The current value of the pulse current is set to the second reference current value (reference current value), and the current value of the pulse current of the care level "5" is set to the third reference current value (reference current value). Therefore, when the output of the current source 61 is the care level "3", the care level "4", and the care level "5", the control unit 63 has a pulse current equal to or higher than the first to third reference current values of the skin electrode 25. A notification sound is output from the speaker 17 (stimulation intensity display body 29) in order to notify the user that the current is being supplied to the user. Further, when the impregnation state of the beauty liquid is "replenishment required", the control unit 63 determines that the impregnation amount of the beauty liquid impregnated in the cotton pad P is equal to or less than the reference value, and determines that the speaker 17 (notifier). The notification sound is output from 16). In this way, the speaker 17 is used as the notification body 16 and the stimulus intensity display body 29, and the control unit 63 calls the user's attention by outputting the notification sound according to the state from the speaker 17. Promotes the replenishment action of beauty liquid.

Next, the determination of the impregnation state of the cosmetic liquid by the output voltage V output from the light receiving element 39 and the control of the beauty instrument based on the determined impregnation state will be described. As shown in the flowchart of FIG. 7, the control unit 63 sets the care level of the current source 61 to "1" at the time when the use of the beauty device in the "ion derivation mode" or the "ion introduction mode" is started (step). S1).

In the next step S2, the output voltage V is compared with the first determination voltage K1. When the output voltage V is the determination voltage K1 or less (V ≦ K1), it is determined that the impregnated state of the impregnated beauty liquid is “plenty”, and in the next step S3, the care level is other than “1”. If it is set, the care level is set to "1" and the process returns to step S2. If the output voltage V exceeds the determination voltage K1 (V> K1) in step S2, the process proceeds to step S4, and the output voltage V is compared with the second determination voltage K2. When the output voltage V is the determination voltage K2 or less (V ≦ K2), it is determined that the impregnated state of the impregnated beauty liquid is “sufficient”. In the next step S5, the care level is set to "2", which is stronger than "1", and the process returns to step S2, because the amount of the cosmetological liquid impregnated is smaller than that of "plenty".

If the output voltage V exceeds the determination voltage K2 (V> K2) in step S4, the process proceeds to step S6, and the output voltage V is compared with the third determination voltage K3. When the output voltage V is the determination voltage K3 or less (V ≦ K3), it is determined that the impregnated state of the impregnated beauty liquid is “slightly small”, and the care level is set to “2” in the next step S7. Set to a stronger "3". Further, since the pulse current supplied to the skin electrode 25 is equal to or higher than the first reference current value, the speaker 17 outputs a notification sound of the notification level "1" such as an intermittent short sound (pip, pip,). , Return to step S2. In this way, by outputting the notification sound from the speaker 17, the user is notified of the impregnation amount of the cosmetic liquid via hearing.

If the output voltage V exceeds the determination voltage K3 (V> K3) in step S6, the process proceeds to step S8, and the output voltage V is compared with the fourth determination voltage K4. When the output voltage V is the determination voltage K4 or less (V≤K4), it is determined that the impregnated state of the impregnated beauty liquid is "slightly low", and in the next step S9, the care level is set to "3". Also set to strong "4". Further, since the pulse current supplied to the skin electrode 25 is equal to or higher than the second reference current value, the speaker 17 outputs a notification sound of the notification level "2" such as an intermittent double sound (pip, pip,). Then, the process returns to step S2.

If the output voltage V exceeds the determination voltage K4 (V> K4) in step S8, the process proceeds to step S10, and the output voltage V is compared with the fifth determination voltage K5. In this embodiment, the maximum voltage VM is set for the determination voltage K5. When the output voltage V is lower than the determination voltage K5 (V <K5), it is determined that the impregnated state of the impregnated beauty liquid is "quite low", and in the next step S11, the care level is set to "4". Also set to strong "5". Further, since the pulse current supplied to the skin electrode 25 is equal to or higher than the third reference current value, the speaker 17 outputs a notification sound of the notification level "3" such as an intermittent triple sound (pip pip, pip pip,). Then, the process returns to step S2. In this embodiment, the speaker 17 (stimulus intensity display 29) outputs a notification sound for notifying the intensity of the pulse current based on the first to third reference current values, but the reference current value is set to 1 or more. All you need is.

If the output voltage V exceeds the determination voltage K5 (V ≧ K5) in step S10, the process proceeds to step S12, the impregnation state of the impregnated beauty liquid is determined to be “replenishment required”, and the care level is set to “replenishment required”. Set to "0". Further, it is determined that the impregnation amount of the beauty liquid is equal to or less than the reference value, a notification sound of the notification level "4" such as a continuous sound (pee) is output from the speaker 17, and the process returns to step S2. In this embodiment, since the maximum voltage VM is set as the determination voltage K5, the process proceeds to step S12 when the output voltage V is the same as the maximum voltage VM (V = VM). The care level of the current source 61 here may be individually set between "0" and "1".

Summarizing steps S2 to S12, when the output voltage V is K1 or less (0 <V ≦ K1), the care level is set to “1”, and the output voltage V exceeds K1 and is K2 or less (K1 <V ≦ K1). In the case of K2), the care level is set to "2". No notification sound is output at the care levels "1" and "2". When the output voltage V exceeds K2 and is K3 or less (K2 <V≤K3), the care level is set to "3", the notification sound of the notification level "1" is output, and the output voltage V is K3. When it exceeds K4 and is K4 or less (K3 <V≤K4), the care level is set to "4" and the notification sound of the notification level "2" is output. When the output voltage V exceeds K4 and is less than K5 (K4 <V <K5), the care level is set to "5", the notification sound of the notification level "3" is output, and the output voltage V is K5. When (VM) or more (V ≧ K5, V = VM in this embodiment), the care level is set to “0” and the notification sound of the notification level “4” is output.

In the "ion derivation mode" or "ion introduction mode", the cotton pad P is attached to the skin electrode 25 with the holding cap 32, and the cotton pad P is fully impregnated with the beauty liquid before using the beauty device. Start. In the timing chart of FIG. 8, when the user turns on the power switch 10 and operates the mode selection switch 11 to select the “ion derivation mode” or the “ion introduction mode” (time point t0), the control unit 63 displays the mode. The unit 18 is switched to the corresponding display, the timer 65 starts counting, and the current source 61 is controlled so as to start supplying a weak pulse current for skin detection to the skin electrode 25 and the grip electrode 62. At the same time, the control unit 63 lights the light emitting element 38 of the liquid amount detection unit 27 for a moment (for example, 0.2 seconds). The light emitting element 38 is temporarily turned on and then turned off, and is turned on again when the skin detection state in which a closed loop is formed (point point t1 described later) is reached.

As described above, when the light emitting element 38 is temporarily turned on when the "ion derivation / introduction mode" is selected, the light of the light emitting element 38 becomes beauty when the cotton pad P is fully impregnated with the beauty liquid. Since it leaks to the surface of the cotton pad P via the liquid, the lighting can be visually recognized. Further, when the light of the light emitting element 38 is not clearly visible, the user can be made to recognize that the impregnation amount of the cosmetic liquid is small, and the replenishment operation of the cosmetic liquid can be promoted before the start of use. Further, the user cannot visually recognize that the light emitting element 38 is lit during the skin detection state, that is, during the skin care. Therefore, temporarily turning on the light emitting element 38 also has a meaning of having the user confirm the operation of the light emitting element 38. That is, the user can know that the light emitting element 38 is in the normal state and has not failed, and the state of light emission such as the light emitting color in the lighting state through the temporary lighting of the light emitting element 38.

In the beauty device according to this embodiment, the drive mode is reset to the "ion derivation mode" each time the power is turned off, so the "ion introduction mode" is selected with the mode selection switch 11 when the power is turned on or after the power is turned on. The time point is the time point t0 in the timing chart of FIG. Unlike this embodiment, in the beauty equipment whose drive mode is memorized even when the power is turned off, if the power is turned off with the "ion derivation mode" or "ion introduction mode" selected, the power is turned on next. Since the "ion derivation mode" or the "ion introduction mode" is selected from the beginning, the time point when the power switch 10 is turned on is the time point t0 in FIG. Further, even in the beauty instrument having only the "ion derivation mode" and / or the "ion introduction mode" as the drive mode, the time point when the power switch 10 is turned on is the time point t0 in FIG.

Approximately 5 seconds after the power is turned on (time point t0), the control unit 63 starts energizing the heater 50 to preheat the skin electrode 25. The control unit 63 maintains the surface temperature of the electrode surface 25a of the skin electrode 25 at about 40 ° C. based on the input signal from the temperature sensor 52 while the skin care is performed in the “ion derivation / introduction mode”. As described above, the heater 50 is controlled on and off. By warming the skin surface with the heater 50, pores are opened to enhance the effect of skin care in ion derivation or ion introduction. In addition, skin care can be performed comfortably without feeling the coldness of the cosmetological liquid.

When the user grips the grip portion 5 and brings the skin electrode 25 into contact with the skin surface via the cotton pad P, the closed loop described above is formed. The control unit 63 that detects this closed loop supplies pulse current for deriving / introducing ions from the current source 61 to the skin electrode 25 and the grip electrode 62, emits light from the head display unit 26, and emits light from the light emitting element 38 to the skin surface. Irradiation of the test light to the device is started (time point t1). In the "ion derivation / introduction mode", the pulse current supplied to the skin electrode 25 is weak, so that the user cannot easily recognize that the current is being supplied. Therefore, in this embodiment, when the pulse current for ion derivation / introduction is supplied, the vibrator 28 is driven at the same time, and the head display unit 26 is colored orange in, for example, "ion derivation mode" and yellow in "ion introduction mode". It emits light. Since it is easy for the user to recognize that the head display unit 26 and the vibrator 28 are driven, it is possible to recognize that the skin is in the skin detection state by driving them. That is, the head display unit 26 and the vibrator 28 function as an energization display body that displays that a pulse current for ion derivation / introduction is supplied to the skin electrode 25. Further, the speaker 17 can be made to function as an energization display by outputting a notification sound indicating that the closed loop is not formed from the speaker 17 in a state where the closed loop is not formed. When the vibrator 28 is driven to stimulate the skin surface, the effect of skin care in ion derivation or ion introduction can be enhanced.

Between the time point t1 and the time point t6, according to the procedure described with reference to FIG. 7, for deriving / introducing ions output from the current source 61 based on the impregnation state of the cosmetic liquid determined from the detection result of the liquid amount detecting unit 27. The care level of the pulse current and the notification level of the notification sound output from the notification body 16 are changed. At the time point t2, the beauty liquid decreased and the output voltage V exceeded the determination voltage K1, so that the care level of the current source 61 rose to "2". At the next time point t3, the beauty liquid was further increased. As the output voltage V exceeds the determination voltage K2, the care level of the current source 61 rises to “3” and the notification sound of the notification level “1” is output from the speaker 17. Further, the amount of beauty liquid decreased, and the output voltage V exceeded the determination voltage K3 at the time point t4, so that the care level of the current source 61 rose to "4" and the notification level by the speaker 17 rose to "2". However, at the time point t5, since the output voltage V exceeds the determination voltage K4, the care level of the current source 61 rises to "5" and the notification level by the speaker 17 rises to "3".

Further, the amount of the cosmetic liquid decreased, and the output voltage V became the determination voltage K5 (maximum voltage VM) or higher at the time point t6, so that the care level of the current source 61 dropped to "0" and the notification level by the speaker 17. Has risen to "4". In this embodiment, the pulse current output from the current source 61 at the care level "0" is switched from the one for ion derivation / introduction to the weak one for skin detection. At the time point t7, the closed loop was eliminated when the user separated the skin electrode 25 from the skin surface for the operation of replenishing the beauty liquid in response to the notification sound of the notification level “4”, and this closed loop could not be detected. The control unit 63 stops the irradiation of the inspection light from the light emitting element 38, and continuously supplies a weak pulse current for skin detection from the current source 61 to the skin electrode 25 and the grip electrode 62. The notification sound from the speaker 17 is continuously output.

After replenishing a lot of cosmetic liquid, when the user grasps the grip portion 5 again and brings the skin electrode 25 into contact with the skin surface (time point t8), a closed loop is formed, and the control unit 63 that detects the closed loop receives an electric current. The pulse current from the source 61 to the skin electrode 25 and the grip electrode 62 is re-supplied. At the same time as the resupply of the pulse current, the light emission display on the head display unit 26 and the irradiation of the inspection light from the light emitting element 38 to the skin surface are started. When the skin electrode 25 is separated from the skin surface during skin care (time point t9), the closed loop is canceled, the control unit 63 performs the same operation as described at time point t7, and the user again presses the grip part 5. When the skin electrode 25 is brought into contact with the skin surface by grasping, a closed loop is formed, and the control unit 63 resupplys the pulse current. Even at this time, the notification sound from the speaker 17 is continuously output. As described above, the notification sound from the speaker 17 is continuously output in the state when the skin electrode 25 is separated from the skin surface.

When 3 minutes have passed since the timer 65 started timing, the control unit 63 turns off the current source 61, stops driving the head display unit 26, the liquid level detection unit 27, and the vibrator 28, and beauty equipment. Is stopped (time point t10). That is, the power of the beauty equipment is turned off. If the power switch 10 is operated by the user before 3 minutes have passed from the start of timing, the control unit 63 stops the beauty device at that time in the same manner as when 3 minutes have passed, and powers the beauty device. Cut off.

While the care level of the current source 61 changes between "1" and "5", the head display unit 26 indicates that the care level is "1" to "5" in different light emitting states. For example, care level "1" may be constantly lit, care level "2" may be lit intermittently (for example, at intervals of 5 seconds), and care level "3" may be lit at shorter intervals (for example, at intervals of 3 seconds). Intermittent lighting, care level "4" can display intermittent lighting with shorter intervals (for example, 1 second interval), and care level "5" can display intermittent lighting with even shorter intervals (for example, 0.3 second interval). it can. Further, the driving state (vibration intensity, intermittent driving, etc.) of the vibrator 28 may be changed. When the light emitting state of the head display unit 26 and / or the driving state of the vibrator 28 are changed, the user is notified of the impregnation state of the cosmetic liquid visually or tactilely, as in the case of the notification sound from the speaker 17 described above. it can. That is, the head display unit 26 and the vibrator 28 can also serve as a notification body 16 and a stimulus intensity display body 29 that notify the user of the impregnation state of the cosmetic liquid.

In addition to the one in which the light emitting state of the head display unit 26 changes with the change in the care level, the color development (blue, red, green, etc.) of the head display unit 26 may change. As the notification sound by the speaker 17, a synthetic voice may be output in addition to the above notification sound, or the strength of the volume may be added.

The "skin abnormality detection mode" is a drive mode in which ions are introduced while driving the liquid amount detection unit 27, and the skin electrode 25 is not attached with the cotton pad P with the cosmetic liquid applied to the skin surface in advance. Is pressed against the skin surface to perform skin care. Therefore, in this mode, the measured portion of the liquid amount detecting unit 27 is the skin surface of the user who is in close contact with the measuring unit 46. Therefore, the state of the skin surface can be determined by the electric output value according to the light receiving amount of the light receiving element 39, and when the cotton pad P is not attached to the skin electrode 25, the liquid amount detecting unit 27 has an abnormality on the skin surface. It functions as a skin abnormality detection unit 71 that detects. Further, in this mode, the current source 61, the heater 50, and the vibrator 28 function as a skin stimulus source 64 that stimulates the user's skin surface, and while measuring the user's skin condition, the current stimulus is applied to the skin surface. And give thermal stimulation and vibration stimulation. As described above, the pulse current is such that the negative electrode current is supplied to the skin electrode 25 and the positive pulse current is supplied to the grip electrode 62, so that the applied beauty liquid permeates the skin surface. be able to.

The amount of light emitted from the light emitting element 38 and reflected on the skin surface changes depending on the color of the user's skin, that is, the amount of melanin. Specifically, in the case of a user with dark skin and a large amount of melanin, the amount of reflected light is reduced because the inspection light is absorbed in a relatively large amount on the skin surface. Conversely, for users with white skin and low melanin, the amount of reflected light is large because the amount of test light absorbed is relatively small. Even when used by the same user, more inspection light is absorbed and the amount of reflected light is smaller in abnormal parts such as spots caused by melanin than in normal parts without spots. The skin abnormality detection unit 71 detects skin abnormalities such as spots based on the difference in the amount of reflected light. In this embodiment, purple visible light having a peak wavelength of about 400 nm is used as inspection light, and purple (380 to 430 nm) visible light is absorbed by melanin as compared with visible light of other colors having a longer wavelength. Cheap. Therefore, since the difference in the amount of reflected light when irradiating the normal part and the abnormal part is large, the detection power of the skin abnormality is excellent.

The more inspection light that is reflected by the user's skin and reaches the light receiving element 39, the larger current flows through the light receiving element 39, and a large voltage (output voltage V) is output from the operational amplifier 68 to the control unit 63. The control unit 63 compares the output voltage V from the operational capacitor 68 with the reference voltage V0 stored in the storage unit 66, and if the output voltage V is the reference voltage V0 or more (V ≧ V0), the inspection portion is normal. On the contrary, if the output voltage V is less than the reference voltage V0 (V <V0), the inspection portion is determined to be abnormal.

The reference voltage V0 is a variable that changes according to the skin color of the user. The whiter the color of the normal portion, the higher the voltage is set, and the blacker the color, the lower the voltage. As shown in the flowchart of FIG. 9, when the use of the beauty device in the "skin abnormality detection mode" is started, the control unit 63 sets the reference voltage V0 to, for example, 1.0 V (step S21), and sets the reference voltage V0 to 1.0 V (step S21). The care level of the heater 50 and the vibrator 28 is set to "1" (step S22). Here, the voltage value of 1.0 V is slightly higher than the voltage value (about 0.8 V) output from the operational amplifier 68 when the mole is irradiated with the inspection light from the light emitting element 38. The care level "1" is a care level that generates an electric current stimulus or the like applied to a normal part of the skin surface. The intensity of the pulse current for skin stimulation corresponding to the care level "1" in the "skin abnormality detection mode" and the pulse for ion derivation / introduction corresponding to the care level "1" in the previous "ion derivation / introduction mode". The current intensity is set to be the same, and this is the same for care levels "2" to "5". The intensity of the pulse current output from the current source 61 at the care levels "1" to "5" can be set to the optimum care level pulse current intensity for each mode, and the "ion derivation / introduction mode" and "ion derivation / introduction mode" and " The pulse current intensity may be set differently depending on the "skin abnormality detection mode".

In the next step S23, the output voltage V is compared with the reference voltage V0. In the initial state where the reference voltage V0 is set to 1.0V, in most cases, the output voltage V exceeds the reference voltage V0 (V> V0), and the output voltage V is set as the new reference voltage V0 in the next step S24. Set. In the next step S25, if the care level is set to other than "1", the care level is set to "1" and the process returns to step S23. When the user moves the beauty device along the skin surface, the reference voltage V0 is repeatedly updated in step S24, and the reference voltage V0 corresponding to the user's skin color is set. That is, the output voltage V in the fairest part of the user's skin, that is, the normal part without stains, is set as the final reference voltage V0. The reference voltage V0 stored in the storage unit 66 is reset to an initial value (for example, 1.0 V) each time the power of the beauty device is turned off.

In step S23, if the output voltage V and the reference voltage V0 are equal (V = V0), the process proceeds to step S25 without going through step S24, and if the care level is set to other than "1", the care level is set to "1". Set to "1" and return to step S23. On the other hand, if the output voltage V is lower than the reference voltage V0 (V <V0) in step S23, the process proceeds to step S26, and the output voltage V is set to a predetermined minimum voltage Vm (lower limit electrical reference value: predetermined lower limit reference light amount). Compare with the corresponding electrical output value). The minimum voltage Vm is a constant set to 0.8 V, which is the same as the output voltage value when the mole is irradiated with the inspection light, and is stored in the storage unit 66 in advance. When the output voltage V is lower than the minimum voltage Vm (YES in step S26), it is determined that the skin electrode 25 is facing the mole that does not need to be cared for, so that the mole is not unnecessarily stimulated. The care level of the skin stimulus source 64 is set to "0" or more and "1" or less (step S27), the output of each skin stimulus source 64 is stopped or reduced, and the process returns to step S23. The care level "0" is a care level at which the output of the skin stimulus source 64 is stopped and no irritation is generated from the skin stimulus source 64. Also in this mode, the care levels of the current source 61, the heater 50, and the vibrator 28 may be individually set between "0" and "1".

If the output voltage V is equal to or greater than the minimum voltage Vm in step S26 (NO in step S26), the process proceeds to step S28, and the difference between the reference voltage V0 and the output voltage V is compared with the predetermined constant C. The constant C is a positive number stored in the storage unit 66 in advance (C> 0). If the difference between the reference voltage V0 and the output voltage V is equal to or less than the constant C (YES in step S28), the care level is set to “2”, which is stronger than “1” (step S29), and the process returns to step S23. On the contrary, when this difference exceeds the constant C (NO in step S28), the process proceeds to step S30.

In step S30, the difference between the reference voltage V0 and the output voltage V is compared with a value twice the constant C. If this difference is not more than twice the constant C (YES in step S30), the care level is set to "3", which is stronger than "2" (step S31), and the process returns to step S23. On the contrary, when this difference exceeds twice the constant C (NO in step S30), the process proceeds to step S32, and the difference between the reference voltage V0 and the output voltage V is compared with the value three times the constant C. If this difference is 3 times or less of the constant C (YES in step S32), the care level is set to "4", which is stronger than "3" (step S33), and the process returns to step S23. On the contrary, when this difference exceeds 3 times the constant C (NO in step S32), the care level is set to “5” which is stronger than “4” (step S34), and the process returns to step S23.

Summarizing steps S28 to S34, when the difference between the reference voltage V0 and the output voltage V is equal to or less than the constant C (0 <V0-V≤C), the care level is set to "2", and this difference exceeds the constant C. The care level is set to "3" when it does not exceed twice (C <V0-V ≦ 2C). Further, when the difference between the reference voltage V0 and the output voltage V exceeds twice the constant C and does not exceed three times (2C <V0-V ≦ 3C), the care level is set to "4", and this difference is the constant C. The care level is set to "5" when it exceeds 3 times (3C <V0-V). Instead of the constant C used in this embodiment, for example, a variable that changes according to the reference voltage V0 can be used.

As described above, step S27 stops or reduces the output of each skin stimulus source 64 when a mole is detected (YES in step S26). In the present invention, the reduction of the output (care level) of the skin stimulus source 64 is a concept including not only reducing the output (care level) to the minimum output excluding the stopped state but also maintaining the minimum output. That is, when step S27 sets the care level of the skin stimulus source 64 to "1", if the care level immediately before that is "2" or higher, the care level is lowered to "1" in step S27. On the other hand, if the care level immediately before that is already "1", the care level is maintained at "1" in step S27, but in the present invention, it is said to be lowered including these.

Next, a case where the beauty device according to this embodiment is used in the "skin abnormality detection mode" will be described. In the "skin abnormality detection mode", the control unit 63 drives the skin abnormality detection unit 71, supplies a pulse current for skin stimulation to the skin electrode 25 and the grip electrode 62, and further drives the heater 50 and the vibrator 28. When the skin abnormality detection unit 71 detects an abnormal part such as a spot, the current stimulation or the like is automatically increased in the abnormal part to strongly and intensively care for the abnormal part. That is, in the normal part of the skin surface, the care level of the skin stimulation source 64 (current source 61, heater 50, vibrator 28) is set to "1", and in the abnormal part, "2" to "2" depending on the degree of abnormality. Set to "5". In the mole portion, the care level of each skin stimulant source 64 is set to "0" to "1".

In the timing chart of FIG. 10, when the user turns on the power switch 10 and operates the mode selection switch 11 to select the “skin abnormality detection mode” (time point t0), the control unit 63 displays the mode display unit 18. By switching, the timer 65 starts timing, and the current source 61 is controlled so as to start supplying a weak pulse current for skin detection to the skin electrode 25 and the grip electrode 62. At the same time, the control unit 63 lights the light emitting element 38 of the skin abnormality detection unit 71 for a moment (for example, 0.2 seconds). If a closed loop is not formed when the pulse current for skin detection is supplied, the alarm level “4” notification sound (pee) in the “ion derivation / introduction mode” ahead of the speaker 17 is output.

If the light emitting element 38 is temporarily turned on when the "skin abnormality detection mode" is selected, the user can check the operation of the light emitting element 38, as in the case of the "ion derivation / introduction mode" described above. Further, by outputting the notification sound from the speaker 17, it is possible to make the user recognize that the closed loop is not formed.

In the beauty device according to this embodiment, as described above, the drive mode is reset to the "ion derivation mode" every time the power is turned off, so that the mode selection switch 11 is used to set the "skin abnormality detection mode" after the power is turned on. The selected time point is the time point t0 in the timing chart of FIG. However, for beauty equipment that remembers the drive mode even when the power is turned off, if the power is turned off with the "skin abnormality detection mode" selected, the next time the power is turned on, "skin abnormality detection" will be detected from the beginning. Since the "mode" is selected, the time point when the power switch 10 is turned on becomes the time point t0 in FIG. Further, even in a beauty device having only a "skin abnormality detection mode" as a drive mode, the time point when the power switch 10 is turned on is the time point t0 in FIG.

Approximately 5 seconds after the power is turned on (time point t0), the control unit 63 starts energizing the heater 50 to preheat the skin electrode 25. The care level of the heater 50 at this time is "1". The control unit 63 controls the heater 50 on and off so as to keep the surface temperature of the electrode surface 25a of the skin electrode 25 at about 40 ° C. based on the input signal from the temperature sensor 52. When the user grips the grip portion 5 and brings the skin electrode 25 into contact with the skin surface, the closed loop described above is formed. The control unit 63 that has detected this closed loop supplies a pulse current for skin stimulation from the current source 61 to the skin electrode 25 and the grip electrode 62, supplies a drive current to the vibrator 28, and displays light emission on the head display unit 26. Then, the light emitting element 38 starts irradiating the skin surface with the inspection light (time point t11). At this time, the care level of the current source 61 and the vibrator 28 is "1", and the care level of the heater 50 is also maintained at "1". The head display unit 26 indicates that the care level of the skin stimulus source 64 is "1", for example, with blue light.

Since it is easy for the user to recognize that the vibrator 28, the heater 50, and the head display unit 26 are energized regardless of the care level, the user is supplied with a pulse current through the recognition that they are energized. You can recognize that. That is, the vibrator 28, the heater 50, and the head display unit 26 function as an energization display body that displays that a pulse current for skin stimulation is supplied to the skin electrode 25. Is the same as.

Between the time point t11 and the time point t14, the reference voltage V0 is updated a plurality of times according to the procedure described with reference to FIG. At the time point t12, the output voltage V of the light receiving element 39 fell below the reference voltage V0, so that the care level of the skin stimulus source 64 temporarily increased to “2”, and at the next time point t13, the output voltage V Exceeded the reference voltage V0, so that the reference voltage V0 was updated and the care level returned to "1". After the reference voltage V0 is set to 2.4V at the time point t14, the reference voltage V0 has not been updated. Therefore, at the time point t14, the skin abnormality detection unit 71 faces the fairest part of the user's skin. You can see that it was done. Of course, the voltage value of 2.4V is just an example, and if another user with a different skin color uses a beauty device, the reference voltage V0 will change. Further, even if one user continues to use the beauty device, the reference voltage V0 may change accordingly if the part to be cared for changes. Further, even if one user continues to use the beauty device for the care of one place, the reference voltage V0 may fluctuate due to the influence of the daily living environment and the like.

From the time point t15 to just before the time point t16, the output voltage V fluctuates between the reference voltage V0 (2.4V) and the minimum voltage Vm (0.8V), and the care level of the skin stimulus source 64 is "2" to "". It fluctuates between "5". During this time, the head display unit 26 displays that the care level is "2" to "5" with lights of different colors. For example, a green light can be displayed at a care level "2", a yellow light can be displayed at a care level "3", an orange light can be displayed at a care level "4", and a red light can be displayed at a care level "5". When the head display unit 26 displays light other than blue indicating the care level “1”, it is possible to notify the user that the skin abnormality detection unit 71 has detected a skin abnormality. That is, the head display unit 26 according to the present embodiment constitutes a notification body 16 that notifies the user that the skin abnormality detection unit 71 has detected a skin abnormality. The user can also recognize that the skin abnormality detection unit 71 has detected the skin abnormality by increasing the care level of the vibrator 28, that is, by increasing the vibration and sound caused by the vibrator 28. Further, the user can recognize that the skin abnormality detecting unit 71 has detected the skin abnormality by increasing the care level of the heater 50, that is, increasing the surface temperature of the electrode surface 25a. That is, the vibrator 28 and the heater 50 not only form the skin stimulus source 64, but also form the notification body 16 together with the head display unit 26.

As described above, the vibrator 28, the heater 50, and the head display unit 26 function as an energization display body for the pulse current for skin stimulation. That is, the vibrator 28 and the heater 50 each have three roles of a skin stimulus source 64, a notification body 16, and an energization display body, and the head display unit 26 has two roles of the notification body 16 and the energization display body, respectively. I have. Contrary to this embodiment, the vibrator 28, the heater 50, and the head display unit 26 are stopped when the pulse current of the care level "1" is supplied, and the vibrator 28 and the like are supplied when the pulse current of the care level "2" or higher is supplied. Although the vibrator 28 and the like cannot be used as the energizing display body in the form of driving the vibrator 28 and the like, the role as the skin stimulating source 64 and the notification body 16 remains.

In this embodiment, the color of the head display unit 26 changes as the care level changes, but instead, the head display unit 26 is made a single color, and its illuminance and light emitting state are changed as the care level increases. It may be increased stepwise. In this case, the color of the head display unit 26 can be arbitrarily selected from blue, red, green, and the like. Further, in addition to the light emitting means such as the head display unit 26, the speaker 17 can be used to output a buzzer, synthetic voice, and the like. In this case, the user is notified through hearing that the care level has changed by changing the tone of the buzzer or synthetic voice as the care level changes, or by gradually increasing the volume as the care level rises. be able to.

At time point t16, the output voltage V on the light receiving side shows 0.8 V, which is equal to the minimum voltage Vm. In this case, the control unit 63 determines that the skin abnormality detection unit 71 faces the mole, sets the care level of the current source 61 and the vibrator 28 to "0" or more and "1" or less, and also sets the heater 50. Set the care level of to "1". Further, the control unit 63 blinks the head display unit 26 in an arbitrary color. In addition, the speaker 17 outputs a notification sound (pip pip, pip pip,) of the notification level "3" in the "ion derivation / introduction mode", and the user indicates that the skin abnormality detection unit 71 is facing the mole. To recognize. The user recognizes that the skin abnormality detection unit 71 is facing the mole based on the notification sound from the speaker 17, the head display unit 26 switching to the blinking display, and the vibration and sound of the vibrator 28 weakening. can do. The head display unit 26 at the time of mole determination can be turned off or displayed in a discolored state in which the color changes every few seconds. Further, in this embodiment, each skin stimulus source 64 (current source 61, vibrator 28, heater 50) was driven at the time of mole determination, but instead, at least one of the skin stimulus sources 64 at the time of mole determination was driven. The care level may be set to "0" to stop the irritation applied to the skin surface from the skin irritation source 64.

At the time point t17, the closed loop is eliminated when the user separates the skin electrode 25 from the skin surface, and the control unit 63, which cannot detect the closed loop, stops the irradiation of the inspection light from the light emitting element 38 and at the same time. The pulse current supplied from the current source 61 to the skin electrode 25 and the grip electrode 62 is switched from one for skin stimulation to one for weak skin detection. Further, the control unit 63 sets the care level of the vibrator 28 to "0" and sets the care level of the heater 50 to "1" to put it in a preheated state, and further turns off the head display unit 26. In addition, a notification sound is output from the speaker 17 to make the user recognize that the closed loop is not formed. At the next time point t18, the control unit 63 re-detects the closed loop, so that the irradiation of the inspection light from the light emitting element 38 is restarted, and at the same time, the notification sound is stopped.

When 3 minutes have passed since the time counting by the timer 65 was started, the control unit 63 turns off the skin stimulus source 64, cuts off the power supply to the light emitting element 38 and the head display unit 26, and stops the beauty device. (Time point t19). That is, the power of the beauty equipment is turned off. If the power switch 10 is operated by the user before 3 minutes have passed from the start of timing, the control unit 63 stops the beauty device at that time in the same manner as when 3 minutes have passed, and powers the beauty device. Cut off.

As shown in FIG. 11, with respect to the output voltage V based on the light receiving amount of the light receiving element 39, two determination regions with the minimum voltage Vm (0.8V) as a boundary can be assumed. When the output voltage V is included in the "mole determination region" of less than the minimum voltage Vm, the control unit 63 determines that the skin electrode 25 faces the mole. When the output voltage V is included in the "skin condition determination region" of the minimum voltage Vm or more and the maximum voltage VM or less, the control unit 63 compares the output voltage V with the reference voltage V0 to determine whether the skin condition is normal or abnormal. judge. The initial value of the reference voltage V0 is set to a low value within the range of the "skin condition determination region", preferably close to the minimum voltage Vm, and fluctuates (rises) according to the user's skin color within the range of the same region. To do. The reference voltage V0 does not fall below the minimum voltage Vm or exceed the maximum voltage VM.

(Example 2) FIG. 12 shows Example 2 of the beauty device according to the present invention. In this embodiment, regardless of whether or not a closed loop consisting of the internal circuit of the beauty device connecting the skin electrode 25 and the grip electrode 62 and the user's human body is formed, the liquid amount detection unit 27 (skin abnormality detection unit) is generated at the same time when the power is turned on. 71) is driven. That is, it differs from the previous embodiment 1 in that the light emitting element 38 is turned on while the power of the beauty device is on and the liquid amount detecting unit 27 is constantly driven. Since the other parts are the same as those in the first embodiment, the same members are designated by the same reference numerals and the description thereof will be omitted.

When the liquid amount detection unit 27 is driven when the power is turned on, if the cotton pad P is not attached to the outer surface of the skin electrode 25, it only receives external light such as lighting, so that it is output from the light receiving element 39. The output voltage V is a voltage close to 0V. Utilizing this, in the "ion derivation / introduction mode", when the output voltage V is close to 0V, the control unit 63 determines that the cotton pad P is not attached, and for example, the notification level "5". (Peep-Peep-Peep: continuous sound whose pitch changes in high and low in a short cycle) can be output to encourage the user to wear the cotton pad P.

Further, since the amount of the cotton pad P can be detected in real time even when the cotton pad P is replenished with the beauty liquid, the speaker 17 emits a notification sound corresponding to the impregnation state with the replenishment of the beauty liquid. Is output from. That is, when the user performs the replenishment operation of the cosmetological liquid, the notification sound that was the notification level "4" gradually decreases in the notification level, and is replenished until the notification sound from the speaker 17 stops. The impregnated state of the cosmetic liquid is "plenty" or "sufficient". Therefore, the notification sound from the speaker 17 can be used as a guide for the amount of the cosmetic liquid to be replenished.

In the timing chart of FIG. 12, when the user turns on the power switch 10 and operates the mode selection switch 11 to select the “ion derivation mode” or the “ion introduction mode” (time point t0), the control unit 63 displays the mode. The current source 61 is controlled so as to switch the unit 18 to the corresponding display, start the time counting by the timer 65, and start supplying the weak pulse current for skin detection to the skin electrode 25 and the grip electrode 62. At the same time, the control unit 63 drives the liquid amount detection unit 27 to light the light emitting element 38. At this time, when the cotton pad P is not attached to the outer surface of the skin electrode 25, the output voltage V is a voltage close to 0 V, so the speaker 17 outputs a notification sound of the notification level “5” to the user. Encourage the wearing of cotton pad P.

When the user attaches the dry cotton pad P (time point t21), the light receiving element 39 outputs the maximum voltage VM in response to the reflected light, so that the control unit 63 is in a state of being impregnated with the cosmetic liquid "replenishment required". The notification sound is switched to the notification level "4". When the user starts the replenishment operation of the beauty liquid at the time point t22, the notification level of the notification sound output from the speaker 17 gradually decreases as the impregnation amount of the beauty liquid increases (3 → 2 →). 1) When the determination of the impregnation state of the cosmetic liquid becomes "sufficient", the output of the notification sound from the speaker 17 is stopped. Even after the notification sound is stopped, the impregnation state of the cosmetological liquid can be made "plenty" by further replenishing the cosmetological liquid.

When the user grasps the grip portion 5 and brings the skin electrode 25 into contact with the skin surface via the cotton pad P, a closed loop is formed, and the control unit 63 derives ions from the current source 61 to the skin electrode 25 and the grip electrode 62. / The supply of the pulse current for introduction, the light emission display on the head display unit 26, and the driving of the vibrator 28 are started (time point t23). The time points t23 to t24 are the same as the operation of the first embodiment described above (time points t2 to t9 in the time chart of FIG. 8). At the time point t25, the cosmetic liquid is replenished, and the replenishment operation gradually lowers the notification level of the notification sound output from the speaker 17. When 3 minutes have passed from the start of the time counting by the timer 65, the driving of the head display unit 26, the liquid amount detection unit 27, and the vibrator 28 is stopped, and the beauty device is stopped (time point t26).

In the above, when the determination of the impregnation state of the beauty liquid becomes "sufficient", the output of the notification sound is stopped from the speaker 17, but the determination of the impregnation state of the beauty liquid is "plenty". The output of the notification sound may be stopped from the speaker 17. As a result, the notification sound can be used as a guide for replenishing the optimum amount of the cosmetological liquid, and it is possible to prevent the cosmetological liquid from being unnecessarily replenished.

As described above, according to the beauty equipment according to each of the above embodiments, the impregnation amount of the beauty liquid (liquid) impregnated in the cotton pad P attached so as to cover the electrode surface 25a of the skin electrode 25 is determined. Since the liquid amount detecting unit 27 for detection is provided on the skin head 2, the state in which the cosmetic liquid is fully impregnated based on the impregnation amount of the cosmetic liquid detected by the liquid amount detecting unit 27, or the cosmetic liquid The impregnation state of the beauty liquid in the cotton pad P, such as the state in which the impregnation amount of the cotton pad P is reduced, can be determined on the beauty instrument side. From the determined impregnated state, the cosmetological device can take various measures such as encouraging the user to replenish the cosmetological liquid or changing the control method of the cosmetological device. Therefore, it is possible to avoid the occurrence of a problem due to an increase in the conduction resistance between the skin electrode 25 and the skin surface. Furthermore, it is possible to eliminate the troublesome operation of checking the beauty liquid by the user.

When the liquid amount detection unit 27 detects that the impregnation amount of the cosmetic liquid impregnated in the cotton pad P is equal to or less than the reference value, the speaker 17 (notifier 16) operates to call the user's attention. It was configured as follows. According to such a beauty device, it is possible to immediately notify the user that the impregnation amount of the beauty liquid is decreasing and prompt the user to replenish the beauty liquid. As a result, it is possible to prevent a problem due to an increase in conduction resistance between the skin electrode 25 and the skin surface. Further, since the speaker 17 (notifier 16) automatically alerts the user by reducing the impregnation amount of the beauty liquid, the user does not need to confirm the beauty liquid. It also has the effect of preventing unnecessary replenishment of the cosmetological liquid, prolonging the care time, and preventing the cosmetological liquid from being wasted.

As the amount of the liquid impregnated in the cotton pad P decreases, the pulse current supplied to the skin electrode 25 is increased. According to such a beauty device, an increased pulse current is supplied to the skin surface in conjunction with an increase in conduction resistance due to a decrease in the impregnation amount of the beauty liquid, so that the insufficient supply of the skin stimulation current to the skin surface is compensated. be able to. As a result, it is possible to accurately perform skin care while supplying an optimum pulse current to the skin surface, and therefore, it is possible to obtain a uniform beauty effect over the entire skin surface to be cared for. Further, since the current is automatically increased by reducing the impregnation amount of the cosmetic liquid, it is possible to save the user the trouble of switching the pulse current.

The pulse current supplied to the skin electrode 25 is increased before the liquid amount detecting unit 27 detects that the impregnation amount of the cosmetic liquid impregnated in the cotton pad P is equal to or less than the reference value. .. According to such a beauty device, immediately after the start of skin care, an increased pulse current is supplied to the skin surface in conjunction with an increase in conduction resistance due to a decrease in the impregnation amount of the beauty liquid, so that a pulse is applied to the skin surface. The shortage of current supply can be accurately compensated. As a result, during skin care, it is possible to perform accurate skin care while constantly supplying the optimum pulse current to the skin surface, and therefore, a uniform beauty effect is applied to the entire skin surface to be cared for. Can be obtained.

The speaker 17 (stimulus intensity display 29) is configured to operate when the pulse current supplied to the skin electrode 25 is equal to or higher than the reference current value. According to such a beauty device, it is possible to call the user's attention by displaying that the impregnation amount of the beauty liquid is reduced on the stimulus intensity display body 29, and to promote the replenishment operation of the beauty liquid. it can. Further, when the cotton pad P is replenished with the beauty liquid, the pulse current output from the current source 61 is reduced, so that the power consumption of the beauty equipment can be suppressed accordingly.

Light for inspection is emitted from the light emitting element 38 toward the measurement unit 46 facing the measurement unit 46, and the light receiving element 39 that receives the reflected light at that time outputs electrical output such as current and voltage according to the amount of light received. The liquid amount detection unit 27 was configured to output a value. According to the liquid amount detecting unit 27, the impregnated state of the cosmetic liquid can be determined by a simple and quantitative standard of the electric output value corresponding to the liquid amount impregnated in the cotton pad P, so that the liquid amount detection The configuration of the part 27 can be simplified, and the impregnated state of the cosmetic liquid can always be accurately determined. Further, when the electric output value of the light receiving element 39 is equal to or higher than the predetermined electric output value, it is determined that the amount of the cosmetic liquid impregnated in the cotton pad P is small, and the speaker 17 (notifier 16) is operated. Then, it is possible to immediately alert the user that the impregnation amount of the beauty liquid is decreasing and encourage the user to replenish the beauty liquid.

The pulse current supplied to the skin electrode 25 is configured to increase as the electrical output value output from the light receiving element 39 increases. According to such a beauty device, the conduction resistance between the skin electrode 25 and the skin surface can be judged by a quantitative standard called an electrical output value, and an appropriately increased skin stimulation current can be supplied to the skin surface. it can. As a result, it is possible to accurately perform skin care while constantly supplying the optimum pulse current to the skin surface, and therefore, it is possible to obtain a uniform beauty effect over the entire skin surface to be cared for.

When the liquid amount detecting unit 27 is arranged inside the skin head 2, the skin head 2 can protect the liquid amount detecting unit 27 and prevent the liquid amount detecting unit 27 from being damaged due to contact with another object. Further, the liquid amount detecting unit 27 can be isolated from the cosmetic liquid impregnated in the cotton pad P to prevent malfunction due to the light emitting element 38 and the light receiving element 39 getting wet.

According to the liquid amount detection unit 27 that exposes the measurement unit 46 from the window opening 45 provided on the electrode surface 25a and detects the impregnation amount of the measurement unit that is in close contact with the measurement unit 46, the cotton pad P or the skin surface is measured. The inspection light can be reliably reflected by the unit, and the reflected light can be received by the light receiving element 39. Further, in the state where the cotton pad P is attached, for example, the cotton pad P can block the illumination light to prevent the illumination light from being received by the light receiving element 39. Therefore, the electrical output value corresponding to the amount of the liquid impregnated in the cotton pad P can be accurately obtained, false detection due to disturbance or the like can be prevented, and the impregnated state of the cosmetic liquid can be reliably determined.

When the cotton pad P is not attached, the liquid amount detecting unit 27 is configured to function as a skin abnormality detecting unit 71 that detects an abnormality on the skin surface. In the beauty device of the present invention, when the cotton pad P is not attached, the measured portion facing the measuring portion 46 is the skin surface. Therefore, by applying the beauty liquid directly to the skin surface without using the cotton pad P and performing skin care, the pulse current is supplied to the skin surface while checking the condition of the skin surface with the skin abnormality detection unit 71. Can perform skin care. Further, when the measuring unit 46 is arranged inside the outer line of the electrode surface 25a, when the electrode surface 25a is brought into contact with the skin surface, the measuring unit 46 faces the skin surface, so that the condition of the skin surface is abnormal. Skin care can be performed while surely checking with the detection unit 71.

In the above embodiment, the electromagnetic wave irradiation unit 38 is composed of a light emitting diode capable of irradiating purple visible light, and the wave receiving unit 39 is composed of a photodiode. However, the electromagnetic wave irradiation unit 38 and the wave receiving unit 39 are not limited to this. , An element capable of irradiating or receiving an electromagnetic wave having a wavelength used for an inspection wave may be adopted. In the "skin abnormality detection mode", as in the first embodiment, the skin abnormality detection unit 71 (liquid amount detection unit 27) is driven only in the state where the skin surface is detected, and in the "ion derivation / introduction mode". Can constantly drive the liquid amount detection unit 27 (skin abnormality detection unit 71) as in the second embodiment, and vice versa. The alarm body 16 can also be composed of a display panel such as a liquid crystal panel or an organic EL panel. In this case, the display panel is impregnated with the beauty liquid in the "ion derivation / introduction mode", for example, "plenty" or "slightly reduced", and in the "skin abnormality detection mode", "stains are being detected" or "mole is being detected". Characters such as "" can be displayed. The electrode body 25 can be formed of a conductive resin or a conductive rubber in addition to the metal.

1 Body case 2 Skin head 16 Notifier 25 Electrode body (skin electrode)
25a Electrode surface 27 Liquid volume detector 29 Stimulus intensity display 38 Electromagnetic wave irradiation unit (light emitting element)
39 Wave receiving part (light receiving element)
45 Window opening 46 Measuring unit 71 Skin abnormality detection unit P Sheet body (cotton pad)

Claims (9)

A skin head (2) having an electrode body (25) to which a skin stimulating current is supplied is provided at one end of a main body case (1) that also serves as a grip.
A beauty device in which a sheet body (P) capable of impregnating a liquid can be attached to an electrode body (25) so as to cover the electrode surface (25a).
The skin head (2) is provided with a liquid amount detecting unit (27) for detecting the impregnated amount of the liquid impregnated in the sheet body (P) .
The liquid amount detecting unit (27) is an electromagnetic wave for inspection toward the measuring unit (46) provided on the electrode body (25) and the sheet body (P) which is the measured unit in close contact with the measuring unit (46). Includes an electromagnetic wave irradiating unit (38) that irradiates a wave, and a receiving unit (39) that receives an electromagnetic wave reflected by the measured unit and outputs an electrical output value according to the amount of the wave received.
When the electrical output value of the wave receiving portion (39) is equal to or higher than the predetermined output value, it is determined that the amount of the cosmetic liquid impregnated in the sheet body (P) is small, and the notification body (16) is operated. A beauty device that is characterized by that. A notification body (16) that generates at least one of sound, light, and vibration is provided in the main body case (1) and / or the skin head (2).
When the liquid amount detection unit (27) detects that the impregnation amount of the liquid impregnated in the sheet body (P) is equal to or less than the reference value, the notification body (16) operates to call the user's attention. The beauty device according to claim 1. The skin stimulation current supplied to the electrode body (25) is controlled to increase or decrease based on the amount of liquid impregnation detected by the liquid amount detection unit (27).
The cosmetological device according to claim 1 or 2, wherein the skin stimulating current supplied to the electrode body (25) is increased as the amount of the liquid impregnated in the sheet body (P) decreases. Before the liquid amount detection unit (27) detects that the impregnation amount of the liquid impregnated in the sheet body (P) is equal to or less than the reference value, the skin stimulation current supplied to the electrode body (25) increases. The beauty device according to claim 3. The body case (1) and / or the skin head (2) is provided with a stimulus intensity indicator (29) that generates at least one of sound, light, and vibration.
The beauty device according to claim 3 or 4, wherein the stimulation intensity display body (29) is operated when the skin stimulation current supplied to the electrode body (25) is equal to or higher than the reference current value. The skin stimulation current supplied to the electrode body (25) is controlled to increase or decrease based on the electrical output value output by the receiving portion (39).
The method according to any one of claims 1 to 5, wherein the skin stimulation current supplied to the electrode body (25) is increased as the electrical output value output from the wave receiving unit (39) is increased . Beauty equipment. The beauty device according to any one of claims 1 to 6, wherein a liquid amount detecting unit (27) is arranged inside the skin head (2). A window opening (45) is provided on the electrode surface (25a), and the measuring unit (46) of the liquid amount detecting unit (27) is exposed from the window opening (45).
The beauty device according to any one of claims 1 to 7, wherein the liquid amount detecting unit (27) detects the impregnation amount of the sheet body (P), which is the unit to be measured that is in close contact with the measuring unit (46). In the front view facing the electrode surface (25a), the measuring unit (46) is arranged inside the outer line of the electrode surface (25a).
When the sheet body (P) is not attached, the liquid amount detecting unit (27) serves as a skin abnormality detecting unit (71) that detects an abnormality on the skin surface, which is a unit to be measured that is in close contact with the measuring unit (46). The beauty device according to any one of claims 1 to 8, which is configured to function.

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