Electric razor

Abstract

To provide an electric razor capable of more accurately measuring a skin condition.SOLUTION: An electric razor 10 comprises a body part 20 that has a cutting part 240 for cutting hair, and a sensor that is attached to the body part 20 so as to measure a condition of an object skin S subject to the cutting of the hair by the cutting part 240.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] The present disclosure relates to an electric razor.

Background Art

[0002] Conventionally, as disclosed in the following Patent Document 1, there has been proposed an automated system for beauty care having a data measurement group for measuring data of the skin (a site to be treated for beauty care) and an arithmetic control unit capable of setting necessary operating conditions in response to the measured data.

[0003] In this Patent Document 1, various data such as moisture, temperature, and pH of the skin are measured using measuring instruments such as a moisture meter, a temperature meter, and a pH meter. Then, based on the various measured data (data measurement group), the arithmetic control unit sets the operating conditions of various beauty instruments including a permanent hair removal device.

[0004] By doing so, beauty treatments including permanent hair removal can be carried out under optimal conditions according to the skin condition.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] An object of the present disclosure is to provide an electric razor capable of measuring the skin condition more accurately.

Means for Solving the Problems

[0007] The electric razor in the present disclosure includes a main body having a blade part for cutting hair, and a sensor attached to the main body for measuring the state of the target skin to be cut by the blade part.

Advantages of the Invention

[0008] The electric razor in the present disclosure can measure the state of the target skin to be cut by the blade part by using a sensor attached to the main body part. Therefore, the skin state can be measured more accurately.

Brief Description of the Drawings

[0009]

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[0010] (Knowledge, etc. on which the present disclosure is based) When the inventors came up with the present disclosure, when measuring the skin condition of the subject, as in Patent Document 1 described above, various data such as the moisture, temperature, pH, etc. of the skin were measured using a measuring instrument.

[0011] In order to measure the skin condition more accurately using such a measuring instrument, it was necessary to keep the measurement conditions such as the pressing force of the sensor against the skin, the angle and distance of the sensor with respect to the skin constant.

[0012] However, when measuring the skin condition of the subject at home or the like, it is common for the measurement subject to press a small measuring instrument against the skin with their own hand and use it. Therefore, it was difficult to measure the skin condition with the measurement conditions kept constant.

[0013] In addition, when measuring the skin condition, if there is hair such as body hair, the sensing of the skin by the sensor is obstructed by the hair, and there is also a problem that the skin condition cannot be accurately measured. This is particularly prominent when measuring the skin condition of men.

[0014] Also, among men, even if they are interested in skin care or the like, it is considered that there are many who think that it is not necessary to take the time to measure the skin condition and then perform skin care or the like.

[0015] Under such circumstances, the inventors came up with the idea of enabling the measurement of skin condition using an electric razor that many men are thought to use almost daily. In this way, if the skin condition can be measured using an electric razor, the skin condition can be measured without taking much trouble, and since it is also possible to remove beard or the like that interferes with accurate measurement of the skin condition, the skin condition can be accurately measured.

[0016] Based on such an idea, the inventors have come to constitute the subject matter of the present disclosure.

[0017] The present disclosure provides an electric razor capable of more accurately measuring the skin condition.

[0018] Hereinafter, embodiments will be described in detail with reference to the drawings. However, detailed descriptions may be omitted more than necessary. For example, detailed descriptions of well-known matters or duplicate descriptions of substantially the same configurations may be omitted.

[0019] Note that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0020] Also, in the following embodiments, the longitudinal direction of the grip portion of the electric razor is defined as the vertical direction, the direction in which the head portion protrudes from the grip portion (the longitudinal direction of the head portion) is defined as the width direction, and the direction orthogonal to the vertical direction and the width direction is defined as the front-rear direction.

[0021] Also, in the following embodiments, the side where the head portion of the grip portion is disposed is defined as the upper side in the vertical direction, and the side where the switch portion of the grip portion is provided is defined as the front side in the front-rear direction.

[0022] (Embodiment 1) The electric razor 10 according to this embodiment includes a main body 20 having a blade portion 240 for cutting hair. This electric razor 10 is mainly for cutting beards, which are body hairs (hairs) of humans or animals.

[0023] In this embodiment, as shown in FIGS. 1 to 5, the main body 20 includes a grip portion 210 that can be held by hand and a head portion 220 supported by the grip portion 210. And a blade portion 240 as an operating portion 230 capable of cutting hair is attached to the head portion 220. It is preferable that this blade portion 240 is detachably attached to the head portion 220. Note that it is also possible to have an electric razor without the head portion 220.

[0024] The grip portion 210 is formed of, for example, synthetic resin or the like and includes a grip housing 211 having a space inside. Inside this grip housing 211, various components such as a substrate 41 for supplying power to drive the electric razor 10 are built in.

[0025] Also, a push-type switch portion 212 for operating (turning on and off the power of) the electric razor 10 is formed on the grip housing 211. In this embodiment, a push-type switch portion 212 is exemplified as the switch portion, but any switch that can turn on and off the power, such as a slide-type switch or other switches, may be used.

[0026] In this embodiment, the switch portion 212 is formed on the front surface of the grip portion 210, that is, the front surface (front side) of the electric razor 10. Note that the front surface of the electric razor 10 refers to the surface on the side facing the user (treatment target person) U when the user (treatment target person) U holds the grip portion 210 of the electric razor 10 during normal use.

[0027] As shown in FIG. 1, the head portion 220 includes a head housing 221 attached to the grip portion 210, and a drive mechanism (not shown) is accommodated in the head housing 221. As this drive mechanism, for example, a conventionally known drive mechanism such as a vibration type linear actuator or a drive mechanism composed of a rotary motor and a conversion mechanism that converts rotary motion into reciprocating linear motion can be used.

[0028] On the other hand, as shown in FIGS. 1 and 2, the blade portion 240 includes an outer blade 250 that is exposed upward from the head portion 220, and an inner blade 260 that is disposed inside the outer blade 250 (below the outer blade 250) and moves relative to the outer blade 250.

[0029] A number of blade holes (not shown) are formed in the outer blade 250, and the outer blade 250 is arranged such that these a number of blade holes are exposed upward from the head portion 220. And the portion of the outer blade 250 that is exposed upward from the head portion 220 serves as a blade surface (shaving surface) 251 that contacts the skin (target skin) S of the user (subject) U. Thus, in the present embodiment, the blade portion 240 has a blade surface 251 that can contact the target skin S when cutting hair.

[0030] On the other hand, the inner blade 260 is attached to the above-described drive mechanism (not shown), and when the drive mechanism is driven, the inner blade 260 reciprocates in the width direction (longitudinal direction).

[0031] And by providing such a blade portion 240 at the upper part of the head portion 220, the skin (target skin) S pressed against the blade surface 251 can be protruded inward from the blade holes so that hair such as beard can be shaved.

[0032] Here, in the present embodiment, the electric shaver 10 includes a sensor 320, and using this sensor 320, the state of the target skin (the same surface as the shaving surface) S to be cut by the blade portion 240 can be measured. That is, the electric shaver 10 is provided with a function as a sensor shaver having a sensor 320 capable of measuring the same surface as the shaving surface.

[0033] Specifically, the electric razor 10 is provided with a sensor unit 30 that is attached to the main body unit 20 and has a sensor 320 for measuring the state of the target skin S to be shaved by the blade unit 240.

[0034] This sensor unit 30 further includes a sensor holding unit 310 that is integrally formed with the main body unit 20 and holds the sensor 320.

[0035] Also, in the present embodiment, the sensor 320 includes an electrode 321 having a plus electrode 321a and a minus electrode 321b.

[0036] This electrode 321 is a so-called contact type sensor that measures the state of the target skin S in a state where the plus electrode 321a and the minus electrode 321b are in contact with the target skin S. If such an electrode 321 is used as a sensor 320 for measuring the state of the target skin S to be shaved by the blade unit 240, for example, the impedance (resistance value), capacitance, etc. of the target skin S can be measured. And by measuring the impedance (resistance value), capacitance, etc. of the target skin S, it becomes possible to know the moisture content, oil content, etc. of the target skin S.

[0037] Furthermore, in the present embodiment, the electrode 321 (sensor 320) is attached to the main body unit 20 in a state where it can measure the state of the target skin S when the blade surface 251 (blade unit 240) is in contact with the target skin S. That is, in the present embodiment, the electrode 321 (sensor 320) has a function as a sensor capable of measuring the state of the target skin S in the use state (shaving operation posture) of the electric razor 10.

[0038] Further, the electrode 321 is attached to the main body 20 via an elastic member 44 such as a spring or rubber. Specifically, the electrode 321 is attached to the main body 20 such that when it is held in the sensor holding portion 310 in a natural state, the tip thereof protrudes above the blade surface 251. At this time, the protruding amount of the electrode 321 from the upper end of the sensor holding portion 310 is set to a predetermined protruding amount d1 (see FIG. 5).

[0039] And when the blade surface 251 (blade portion 240) is brought into contact with the target skin S, the protruding amount of the electrode 321 from the upper end of the sensor holding portion 310 is set to a predetermined protruding amount d2 that is smaller than the predetermined protruding amount d1 (see FIG. 10).

[0040] Thus, in the present embodiment, in a state where the blade surface 251 (blade portion 240) is in contact with the target skin S, the electrode 321 is biased in the direction (vertical direction) in which the target skin S is pressed by the elastic member 44.

[0041] By doing so, in a state where the blade surface 251 (blade portion 240) is in contact with the target skin S, the electrode 321 presses the target skin S with a substantially constant pressing force.

[0042] Further, the sensor holding portion 310 (sensor portion 30) is provided with an inclination suppressing portion 311 that suppresses the inclination of the electrode 321 from a predetermined position. In the present embodiment, a state in which the protruding direction of the electrode 321 substantially coincides with the vertical direction is defined as the predetermined position of the electrode 321. By doing so, in a state where the blade surface 251 (blade portion 240) is in contact with the target skin S, the electrode 321 presses the target skin S substantially perpendicularly, and the electrode 321 can be made to contact the target skin S more reliably.

[0043] Thus, in the present embodiment, by providing the inclination suppressing portion 311 that suppresses the inclination of the electrode 321 from a predetermined position in the sensor portion 30, the electrode 321 that moves while being in contact with the target skin S is made to be at a substantially constant angle with respect to the target skin S.

[0044] By doing so, the contact area between the electrode 321 (sensor 320) and the target skin S is made substantially constant.

[0045] In addition, it is also possible that two or more electrodes 321 (sensors 320) protruding from the blade surface (shaving surface) 251 itself have elasticity. That is, it is also possible to form two or more electrodes 321 (sensors 320) protruding from the blade surface (shaving surface) 251 with an elastic member. Further, it is also possible to form two or more electrodes 321 (sensors 320) protruding from the blade surface (shaving surface) 251 with a spring.

[0046] Also, in the present embodiment, as shown in FIG. 5, the electrode 321 is electrically connected to the substrate 41 via an elastic member 44, a connector 43, and a flexible cable 42. And the power for driving the electrode 321 is supplied from the power for driving the electric shaver 10. Thus, in the present embodiment, the elastic member 44 is formed of a conductive material.

[0047] Also, in the present embodiment, the electrode 321 includes one plus electrode 321a and one minus electrode 321b separate from the plus electrode 321a. That is, one of the two electrodes 321 is set as the plus electrode 321a, and the other electrode 321 is set as the minus electrode 321b.

[0048] As shown in FIG. 7, conductors may be provided on both sides of the insulating portion 321c so that the insulating portion 321c is interposed therebetween, and one electrode 321 may be provided with the plus electrode 321a and the minus electrode 321b.

[0049] Also, it is possible to use a sensor 320 having two or more electrodes 321 protruding from the blade surface (shaving surface) 251, or to adopt a configuration having two or more sensors 320 protruding from the blade surface (shaving surface) 251.

[0050] In addition, in the present embodiment, the electrode 321 (sensor 320) is arranged in a region R1 having an outer contour C1 located 1 cm away from the outer contour 251a of the blade surface 251 (see FIG. 8).

[0051] By doing so, since the electrode 321 (sensor 320) is installed near the blade part 240 which is a basic function, it is possible to measure the state of the target skin S immediately after cutting the hair (immediately after the treatment by the blade part 240).

[0052] That is, the blade part 240 can function as an automatic beard cutting part that cuts unnecessary beards so that the electrode 321 (sensor 320) does not malfunction.

[0053] When shaving the beard of the target skin S of the subject U using the electric razor 10 configured as described above, as shown in FIGS. 9 and 10, with the electrode 321 (sensor 320) in contact with the target skin S with a substantially constant pressing force, the blade surface 251 is slid on the target skin S.

[0054] Therefore, when using the electric razor 10 according to the present embodiment, it becomes possible for the sensor 320 to measure the state of the target skin S while the blade part 240 is cutting the beard (hair) of the target skin S. That is, it becomes possible to measure the state of the target skin (the same surface as the shaving surface) S while shaving the beard of the target skin (the same surface as the shaving surface) S. By doing so, it becomes possible to measure the state of the target skin (the same surface as the shaving surface) S immediately after cutting the hair (immediately after the treatment by the blade part 240).

[0055] Note that, instead of measuring the state of the target skin (the same surface as the shaving surface) S while shaving the beard of the target skin (the same surface as the shaving surface) S, it is also possible to adopt a configuration in which the state of the target skin (the same surface as the shaving surface) S is measured before cutting the beard. That is, it is also possible to adopt the configuration shown in FIG. 11.

[0056] The electric razor 10 shown in Fig. 11 further includes a skin contact sensing means 51 for sensing contact of the blade part 240 with the target skin S, and a timer 52 for measuring the time since the skin contact sensing means 51 senses the contact of the blade part 240 with the target skin S.

[0057] After the skin contact sensing means 51 senses the contact of the blade part 240 with the target skin S, the sensor 320 measures the state of the target skin S within a predetermined time.

[0058] Within the predetermined time, for example, it can be within 5 seconds. It is more preferable that it is within 1 second within this predetermined time.

[0059] In this way, in the electric razor 10 shown in Fig. 11, after the skin contact sensing means 51 senses the contact of the blade part 240 with the target skin S, the state of the target skin S can be measured within a time shorter than 5 seconds. By doing so, the state of the target skin S can be measured more reliably before cutting the hair.

[0060] Note that the electric razor 10 shown in Fig. 11 is configured not only to measure the state of the target skin S before cutting the hair, but also to measure the state of the target skin S even when the blade part 240 is cutting the beard (hair) of the target skin S. That is, it is also possible to measure the state of the target skin S while cutting the beard while measuring the state of the target skin S before shaving the beard.

[0061] Also, the configuration shown in Fig. 12 is also possible.

[0062] The electric razor 10 shown in Fig. 12 further includes an area change detection means 53 for detecting a change in the contact area of the blade part 240 with the target skin S, and a measurement value correction means 54 for correcting the measurement value measured by the electrode 321 according to the change in the contact area detected by the area change detection means 53.

[0063] By doing so, the measured value measured by the electrode 321 that changes according to the change in the contact area of the blade portion 240 with the target skin S is corrected by the measured value correction means 54. And the state of the target skin S can be measured more accurately by the electrode 321.

[0064] (Embodiment 2) The electric razor 10 according to the present embodiment has substantially the same configuration as the electric razor 10 shown in the above Embodiment 1.

[0065] That is, as shown in FIGS. 13 and 14, the electric razor 10 according to the present embodiment includes a main body portion 20 having a blade portion 240 for cutting hair, and a sensor 320 that is attached to the main body portion 20 and measures the state of the target skin S to be cut by the blade portion 240.

[0066] Also in the present embodiment, the sensor 320 is attached to the main body portion 20 in a state where it can measure the state of the target skin S when the blade portion 240 is brought into contact with the target skin S.

[0067] Here, in the present embodiment, the sensor 320 includes an optical sensor 322 that irradiates light on the target skin S.

[0068] This optical sensor 322 is held (fixed) by the sensor holding portion 310 so as to be separated from the target skin S by a predetermined distance d3 when the blade portion 240 is brought into contact with the target skin S. That is, the optical sensor 322 is held (fixed) by the sensor holding portion 310 so as to be able to maintain a substantially constant distance from the target skin S. By doing so, more stable sensing can be achieved.

[0069] This optical sensor 322 is a so-called non-contact type sensor that measures the state of the target skin S while being separated from the target skin S by a predetermined distance d3. If such an optical sensor 322 is used as a sensor 320 that measures the state of the target skin S to be shaved by the blade portion 240, for example, it is possible to measure the absorption rate, reflectance, intensity change of the wavelength, etc. of the light irradiated toward the target skin S. And by measuring the absorption rate, reflectance, intensity change of the wavelength, etc. of the light irradiated toward the target skin S, it becomes possible to know the color, depth of wrinkles, deep stains, etc. of the target skin S.

[0070] (Embodiment 3) The electric shaver 10 according to the present embodiment has substantially the same configuration as the electric shaver 10 shown in the above Embodiment 1.

[0071] That is, as shown in FIGS. 15 and 16, the electric shaver 10 according to the present embodiment includes a main body portion 20 having a blade portion 240 for cutting hair, and a sensor 320 that is attached to the main body portion 20 and measures the state of the target skin S to be shaved by the blade portion 240.

[0072] Also, in the present embodiment as well, the sensor 320 is attached to the main body portion 20 in a state where it can measure the state of the target skin S when the blade portion 240 is brought into contact with the target skin S.

[0073] Here, in the present embodiment, the sensor 320 includes an imaging sensor 323 that captures an image of the target skin S.

[0074] This imaging sensor 323 is held (fixed) by the sensor holding portion 310 so as to be separated from the target skin S by a predetermined distance d4 when the blade portion 240 is brought into contact with the target skin S. That is, the imaging sensor 323 is held (fixed) by the sensor holding portion 310 so as to maintain a substantially constant distance from the target skin S. By doing so, more stable sensing can be achieved.

[0075] This imaging sensor 323 is a so-called non-contact type sensor that measures the state of the target skin S while being separated from the target skin S by a predetermined distance d4. If such an imaging sensor 323 is used as a sensor 320 that measures the state of the target skin S to be shaved by the blade portion 240, for example, it becomes possible to know the texture, surface stains, wrinkles, etc. of the target skin S from the image data of the target skin S.

[0076] Also, the configuration shown in FIG. 17 is also possible.

[0077] The electric razor 10 shown in FIG. 17 further includes an image correction means 55 in which the imaging sensor 323 images a plurality of locations on the target skin S and corrects the image of the target skin S based on at least two pieces of imaging data.

[0078] In this way, since the image of the target skin S is corrected by the image correction means 55 based on at least two pieces of imaging data, it becomes possible to obtain more accurate image data of the target skin S.

[0079] Also, the configuration shown in FIG. 18 is also possible.

[0080] The electric razor 10 shown in FIG. 18 further includes a calculation means 56 in which the imaging sensor 323 images a plurality of locations on the target skin S and calculates 3D information of the target skin S based on at least two pieces of imaging data.

[0081] In this way, since the 3D information of the target skin S is calculated by the calculation means 56 based on at least two pieces of imaging data, it becomes possible to obtain more realistic image data of the target skin S.

[0082] Also, the configuration shown in FIG. 19 is also possible.

[0083] The electric razor 10 shown in FIG. 19 includes a sensor position control unit 57 that can movably control the position of the sensor 320.

[0084] The electric razor 10 shown in Fig. 19 further includes a contact pressure detection unit 58 that detects the force (contact pressure) with which the blade surface 251 (blade portion 240) presses against the target skin S, and is configured to movably control the position of the sensor 320 according to the contact pressure detected by the contact pressure detection unit 58.

[0085] The movable control of the position of this sensor 320 can be performed using, for example, a solenoid or the like.

[0086] In this way, if the position of the sensor 320 is movably controlled according to the contact pressure detected by the contact pressure detection unit 58, when using the electric razor 10, the distance between the sensor 320 and the target skin S, and in the case of a contact-type sensor, the force pressing against the target skin S can be made substantially constant. As a result, the skin condition can be measured more accurately.

[0087] [Function and Effect] Hereinafter, the characteristic configurations of the electric razors shown in the above-described embodiments and their modified examples, and the effects obtained thereby will be described.

[0088] (1) The electric razor 10 shown in the above-described embodiments and their modified examples includes a main body portion 20 having a blade portion 240 for cutting hair, and a sensor 320 attached to the main body portion 20 for measuring the state of the target skin S to be cut by the blade portion 240.

[0089] When using such an electric razor 10, when measuring the state of the target skin S to be cut by the blade portion 240, the sensor 320 attached to the main body portion 20 will be used. That is, the electric razor 10 shown in the above-described embodiments and their modified examples can measure the state of the target skin S to be cut by the blade portion 240 using the sensor 320 attached to the main body portion 20. Therefore, the skin condition can be measured more accurately.

[0090] Moreover, by using the electric razor 10 shown in each of the above embodiments and their modifications, one can know the state of one's own skin with more objective information, and when determining the skin care policy for oneself, the information obtained by this electric razor 10 can be referred to.

[0091] (2) Further, the sensor 320 may be attached to the main body 20 in a state where it can measure the state of the target skin S when the blade portion 240 is brought into contact with the target skin S.

[0092] In this way, it becomes possible to measure the state of the target skin S in the state (shaving operation posture) when shaving the beard of the target skin S using the electric razor 10. That is, by simply applying the electric razor 10 to the target skin S as usual, the sensor 320 can be set to the correct measurement position and posture. As a result, the skin condition can be measured more accurately without feeling the trouble of measurement.

[0093] In particular, the electric razor 10 is used almost at the same time every day. Therefore, if the electric razor 10 shown in (2) is used almost at the same time every day, the skin condition of the subject U will also be measured almost at the same time every day. That is, it becomes possible to diagnose the skin condition during the daily routine work of shaving. By doing so, it becomes possible to regularly measure the skin condition almost at the same time without taking much trouble.

[0094] Moreover, in order to correctly know the state of the skin (especially the face part) that changes daily depending on the season and one's own living environment, it is necessary to regularly measure it with a measuring instrument at the same time. However, the electric razor 10 is generally used in the morning after getting up. Therefore, if the electric razor 10 shown in (2) is used as usual, it is possible to measure the target skin S in a calm state after getting up in the morning, and it becomes possible to know the skin condition more correctly.

[0095] Furthermore, since the sensing of the target skin S is to be performed with the blade surface 251, which is a relatively wide surface of the electric razor 10, applied to the target skin S, it is possible to make the distance and angle between the sensor 320 and the target skin S and, in the case of a contact-type sensor, the pressing force on the target skin S substantially constant. As a result, the skin condition can be measured more accurately.

[0096] (3) Further, the electric razor 10 may further include a skin contact sensing means 51 for sensing the contact of the blade part 240 with the target skin S. After the skin contact sensing means 51 senses the contact of the blade part 240 with the target skin S, the sensor 320 may measure the state of the target skin S within a predetermined time.

[0097] In this way, it becomes possible for the sensor 320 to measure the state of the target skin S between the time when the skin contact sensing means 51 senses the contact of the blade part 240 with the target skin S and the start of cutting the hair of the target skin S.

[0098] (4) Further, the sensor 320 may measure the state of the target skin S while the blade part 240 is cutting the hair of the target skin S.

[0099] In this way, it becomes possible to measure the state of the target skin S while shaving the beard using the electric razor 10 in the normal manner. As a result, it becomes possible to measure the state of the target skin S in a state where the beard that may inhibit the measurement of the state of the target skin S by the sensor 320 has been removed. Therefore, it becomes possible to measure the state of the target skin S more accurately by the sensor 320.

[0100] (5) Further, the sensor 320 may include an electrode 321 having a plus electrode 321a and a minus electrode 321b. The electrode 321 may measure the state of the target skin S while the plus electrode 321a is in contact with the target skin S and the minus electrode 321b is in contact with the target skin S.

[0101] By doing so, it becomes possible to measure the impedance (resistance value), capacitance, etc. of the target skin S, and it becomes possible to know the moisture content, oil content, etc. of the target skin S.

[0102] (6) Further, the electrode 321 may be attached to the main body 20 via the elastic member 44.

[0103] By doing so, when the electrode 321 is brought into contact with the target skin S, it can be configured to press the target skin S, and when measuring the state of the target skin S with the electrode 321, the electrode 321 can be more reliably brought into contact with the target skin S.

[0104] (7) Further, in a state where the blade portion 240 is in contact with the target skin S, the electrode 321 may be biased in a direction to press the target skin S by the elastic member 44.

[0105] By doing so, the electrode 321 can be brought into contact with the target skin S with a substantially constant pressure. As a result, it becomes possible to measure the state of the target skin S more accurately with the electrode 321.

[0106] (8) Further, a tilt suppression portion 311 for suppressing the tilt of the electrode 321 from a predetermined position may be provided.

[0107] By doing so, the electrode 321 that moves while being in contact with the target skin S can be made to have a substantially constant angle with respect to the target skin S, and it becomes possible to measure the state of the target skin S more accurately with the electrode 321.

[0108] (9) Further, an area change detection means 53 for detecting a change in the contact area of the blade portion 240 with the target skin S, and a measurement value correction means 54 for correcting the measurement value measured by the electrode 321 according to the change in the contact area detected by the area change detection means 53 may be further provided.

[0109] In this way, according to the change in the contact area detected by the area change detection means 53, the measured value measured by the electrode 321 is corrected by the measured value correction means 54, so that the state of the target muscle S can be measured more accurately by the electrode 321.

[0110] (10) Further, the sensor 320 may include an optical sensor 322 that irradiates the target muscle S with light.

[0111] In this way, it becomes possible to measure the absorption rate, reflectance, intensity change of wavelength, etc. of the light irradiated toward the target muscle S, and it becomes possible to know the color, depth of wrinkles, deep stains, etc. of the target muscle S.

[0112] (11) Further, when the blade portion 240 is brought into contact with the target muscle S, the optical sensor 322 may be in a state of being separated from the target muscle S by a predetermined distance d3.

[0113] In this way, the distance and angle between the optical sensor 322 and the target muscle S can be made substantially constant, and the muscle state can be measured more accurately.

[0114] (12) Further, the sensor 320 may include an imaging sensor 323 that captures an image of the target muscle S.

[0115] In this way, the texture, surface stains, wrinkles, etc. of the target muscle S can be known from the image data of the target muscle S.

[0116] (13) Further, when the blade portion 240 is brought into contact with the target muscle S, the imaging sensor 323 may be in a state of being separated from the target muscle S by a predetermined distance d4.

[0117] In this way, the distance and angle between the imaging sensor 323 and the target muscle S can be made substantially constant, and the muscle state can be measured more accurately.

[0118] (14) Further, the imaging sensor 323 may further include an image correction unit 55 that images a plurality of locations of the target skin S and corrects an image of the target skin S based on imaging data at at least two locations.

[0119] In this way, since the image of the target skin S is corrected by the image correction unit 55 based on imaging data at at least two locations, it becomes possible to obtain more accurate image data of the target skin S.

[0120] (15) Further, the imaging sensor 323 may further include a calculation unit 56 that images a plurality of locations of the target skin S and calculates 3D information of the target skin S based on imaging data at at least two locations.

[0121] In this way, since the 3D information of the target skin S is calculated by the calculation unit 56 based on imaging data at at least two locations, it becomes possible to obtain more realistic image data of the target skin S.

[0122] [Other] As described above, the content of the electric razor according to the present disclosure has been described. However, it is obvious to those skilled in the art that the present disclosure is not limited to these descriptions, and various modifications and improvements are possible.

[0123] For example, it is possible to configure an electric razor by appropriately combining the configurations shown in the above embodiments and their modifications.

[0124] Further, as the sensor 320 included in the electric razor 10, various sensors can be used. For example, an electrode sensor, a non-contact sensor, an infrared sensor, an optical sensor, an image sensor, an imaging sensor, a moisture sensor, a microscope, etc. can be used as the sensor 320. At this time, it is possible for the electric razor 10 to include two or more sensors, or it is also possible to include two or more types of sensors.

[0125] In addition, the state of the target skin S (skin information) measured by the sensor 320 can be used for various applications. For example, it is possible to display the measured state of the target skin S (skin information) on a display of an electric shaver 10, a terminal device, or the like. Further, based on the measured state of the target skin S (skin information), it is also possible to perform control of the treatment by the treatment unit 230 (for example, control such as adjusting the position of the outer blade 250, providing a flash lamp, etc., and adjusting the wavelength and intensity of the irradiated light). Further, the measured state of the target skin S (skin information) can be transmitted to an external system such as a server, stored in a database, or used as information for proposing a more appropriate treatment.

[0126] In addition, the specifications (shape, size, layout, etc.) of the main body part, the sensor part, and other details can also be appropriately changed.

Industrial Applicability

[0127] As described above, the electric shaver according to the present disclosure can measure the skin state more accurately, and thus can be used for various electric shavers including household and business use.

Explanation of Signs

[0128] 10 Electric shaver 20 Main body part 240 Blade part 311 Tilt suppression part 320 Sensor 321 Electrode 321a Positive electrode 321b Negative electrode 322 Optical sensor 323 Imaging sensor 44 Elastic member 51 Skin contact sensing means 53 Area change detection means 54 Measurement value correction means 55 Image correction means 56 Calculation means d3 Predetermined distance d4 Predetermined distance S Skin (target skin)

Claims

1. A main body having a blade portion for cutting hair; A sensor attached to the main body for measuring the state of the target skin to be cut by the blade portion; Comprising: The sensor is attached to the main body in a state where it can measure the state of the target skin when the blade portion is brought into contact with the target skin; The sensor measures the state of the target skin in a state where the blade portion is cutting the hair of the target skin; The blade portion includes an outer blade and an inner blade disposed inside the outer blade and reciprocating with respect to the outer blade; The sensor portion is located in a direction intersecting the reciprocating direction of the inner blade with respect to the blade portion; The sensor includes an electrode having a positive electrode and a negative electrode; The electrode measures the state of the target skin in a state where the negative electrode is brought into contact with the target skin while the positive electrode is brought into contact with the target skin; Area change detection means for detecting a change in the contact area of the blade portion with the target skin; Measurement value correction means for correcting the measurement value measured by the electrode according to the change in the contact area detected by the area change detection means; Further comprising: An electric hair clipper.

2. Further comprising skin contact detection means for detecting contact of the blade portion with the target skin; After the skin contact detection means detects contact of the blade portion with the target skin, the sensor measures the state of the target skin within a predetermined time; The electric hair clipper according to Claim 1.

3. The electrode is attached to the main body via an elastic member; The electric hair clipper according to Claim 1 or Claim 2.

4. In a state where the blade portion is in contact with the target skin, the electrode is biased in a direction to press the target skin by the elastic member; The electric hair clipper according to Claim 3.

5. An inclination suppression portion for suppressing the inclination of the electrode from a predetermined position is provided; The electric hair clipper according to Claim 3 or Claim 4.

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