hairbrush

Abstract

The present disclosure provides a hairbrush that is easy to use. [Solution] The hairbrush comprises a housing, a brush section having a plurality of brush bristles protruding from the housing, and a cover section that is detachably attached to the housing and can be changed between a closed state in which the brush section is stored inside and an open state in which the brush section is open, the cover section and housing are configured such that in the closed state, the inner surface of the cover section and the outer surface of the housing are close to or in contact with each other, a magnet is provided on one of the cover section and the housing and a magnetic body is provided on the other, the housing is provided with a first detection section, and in the closed state, the first detection section is magnetically connected to the magnet via the magnetic body.

Description

[Technical Field]

[0001] The following disclosure relates to hairbrushes. [Background technology]

[0002] For example, Patent Document 1 proposes a portable hairbrush with an ion generating function as a foldable small electrical device equipped with a power switch that is configured to switch between an on state and an off state in conjunction with the opening and closing of the case. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-129959 Summary of the Invention [Problem to be solved by the invention]

[0004] The hairbrush described in Patent Document 1 has two cases whose connecting bosses are connected to each other so that they can rotate relative to each other, and a power switch is located near one of the connecting bosses, allowing the power switch to be operated using the other connecting boss. However, if the connecting boss is damaged, there is a concern that the power on / off function linked to the opening and closing of the case will not function properly. As such, conventional hairbrushes have issues with usability.

[0005] An object of the present disclosure is to provide a hairbrush that is easy to use. [Means for solving the problem]

[0006] A hairbrush according to one aspect of the present disclosure comprises a housing, a brush section having a plurality of brush bristles protruding from the housing, and a cover section that is detachably attached to the housing and can be changed between a closed state in which the brush section is stored inside and an open state in which the brush section is open, wherein the cover section and the housing are configured such that in the closed state, the inner surface of the cover section and the outer surface of the housing are close to or in contact with each other, a magnet is provided on one of the cover section and the housing and a magnetic body is provided on the other, the housing comprises a first detection section, and in the closed state, the first detection section is magnetically connected to the magnet via the magnetic body.

[0007] Another aspect of the hairbrush of the present disclosure comprises a housing, a brush section having a plurality of brush bristles protruding from the housing, a charged particle generating unit provided within the housing for generating charged particles, a cover section detachably provided on the housing and changeable between a closed state in which the brush section is stored inside and an open state in which the brush section is open, and a control section that controls the driving of the charged particle generating unit, wherein the control section stops the driving of the charged particle generating unit after a certain time has elapsed since the driving of the charged particle generating unit began. [Effects of the Invention]

[0008] According to the present disclosure, a hairbrush with excellent usability can be provided. [Brief explanation of the drawings]

[0009] [Figure 1A] FIG. 1 is a schematic diagram of a hairbrush 1 (closed state). [Figure 1B] FIG. 1 is a schematic diagram of a hairbrush 1 (closed state). [Figure 1C] FIG. 1 is a schematic diagram of a hairbrush 1 (closed state). [Figure 1D] FIG. 1 is a schematic diagram of a hairbrush 1 (closed state). [Figure 1E] FIG. 1 is a schematic diagram of a hairbrush 1 (closed state). [Figure 2A]1 is a schematic diagram of a hairbrush 1 (first open state). [Figure 2B] 1 is a schematic diagram of a hairbrush 1 (first open state). [Figure 2C] 1 is a schematic diagram of a hairbrush 1 (first open state). [Figure 2D] 1 is a schematic diagram of a hairbrush 1 (first open state). [Figure 2E] 1 is a schematic diagram of a hairbrush 1 (first open state). [Figure 3A] FIG. 2 is a schematic diagram of a brush unit 20. [Figure 3B] FIG. 2 is a schematic diagram of a brush unit 20. [Figure 3C] FIG. 2 is a schematic diagram of a brush unit 20. [Figure 4A] FIG. 2 is a schematic diagram of the housing 10. [Figure 4B] FIG. 2 is a schematic diagram of the housing 10. [Figure 4C] FIG. 2 is a schematic diagram of the housing 10. [Figure 4D] FIG. 2 is a schematic diagram of the housing 10. [Figure 4E] FIG. 2 is a schematic diagram of the housing 10. [Figure 5A] FIG. 2 is a schematic diagram of the hairbrush 1 (second open state). [Figure 5B] FIG. 2 is a schematic diagram of the hairbrush 1 (second open state). [Figure 5C] FIG. 2 is a schematic diagram of the hairbrush 1 (second open state). [Figure 5D] FIG. 2 is a schematic diagram of the hairbrush 1 (second open state). [Figure 5E] FIG. 2 is a schematic diagram of the hairbrush 1 (second open state). [Figure 6] This corresponds to FIG. 1D with a dotted frame P1 added. [Figure 7] 10 is a diagram conceptually showing the arrangement order of a magnet 40, a magnetic body 41, and a first detection unit 42 in a closed state in the hairbrush 1 of the second embodiment. FIG. [Figure 8]10 is a diagram conceptually showing the arrangement order of a magnet 40, a magnetic body 41, and a first detection unit 42 in a closed state in the hairbrush 1 of the third embodiment. FIG. [Figure 9] FIG. 10 is a block diagram showing the configuration of the main parts of a hairbrush 1 according to a seventh embodiment. [Figure 10] FIG. 10 is a block diagram showing the configuration of the main parts of a hairbrush 1 according to an eighth embodiment. [Figure 11] FIG. 20 is a block diagram showing the configuration of the main parts of a hairbrush 2 according to a tenth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of a hairbrush 1 according to the present disclosure will be described with reference to the drawings. The present disclosure is not limited to the contents described in the following embodiments, and appropriate design changes can be made within the scope of the configuration of the present disclosure. In the drawings, identical or equivalent elements are given the same reference numerals, and duplicate explanations will be omitted. Only the main parts are shown in the drawings. The following description will focus on the main parts and parts related to the present disclosure.

[0011] In this specification, when describing the direction of the brush head 20 and the housing 10 to which the brush head 20 is attached, the tip end of the direction in which the brush bristles 210 protrude is referred to as the upper side (Z1), and the opposite side is referred to as the lower side (Z2). The direction perpendicular to the direction Z in which the brush bristles 210 protrude (also referred to as the up-down direction Z) is referred to as the horizontal direction X. The direction perpendicular to the up-down direction Z and perpendicular to the horizontal direction X is referred to as the front-to-back direction Y. When describing the direction of the cover head 30, the tip end of the direction in which the brush bristles 210 protrude when the brush head 20 is housed in the cover head 30 in a closed state is referred to as the upper side (Z1), and the opposite side is referred to as the lower side (Z2). Note that the upper and lower sides are also referred to as the upper side and the lower side, respectively. In the drawings, in a plan view (plan view from Z1), the upper side is referred to as Y1, and the right side is referred to as X2.

[0012] In this specification, when two lines or planes are "parallel," it means that the angle (absolute value) they form is within the range of 0°±3°. When two lines or planes are "orthogonal" (and "perpendicular"), it means that the angle (absolute value) they form is within the range of 90°±3°.

[0013] (Embodiment 1) 1A to 1E and 2A to 2E are schematic diagrams illustrating the hairbrush 1 according to this embodiment. Specifically, FIGS. 1A to 1E show a position in which the brush head 20 is housed inside the cover head 30 (also referred to as a closed state), with FIG. 1A being a perspective view, FIG. 1B being a plan view, FIG. 1C being a bottom view, FIG. 1D being a cross-sectional view taken along line A-A' in FIG. 1A, and FIG. 1E being a cross-sectional view taken along line B-B' in FIG. 1A. FIGS. 2A to 2E illustrate the hairbrush 1 in a state in which the cover head 30 is detached from the housing 10 (also referred to as a first open state) in which the brush head 20 is open (also referred to as an open state), with FIG. 2A being a perspective view, FIG. 2B being a plan view, FIG. 2C being a bottom view, FIG. 2D being a cross-sectional view taken along line A-A' in FIG. 2A, and FIG. 2E being a cross-sectional view taken along line B-B' in FIG. 2A.

[0014] Figures 3A to 3C are schematic diagrams showing the brush unit 20 included in the hairbrush 1 according to this embodiment. Figure 3A is a perspective view, Figure 3B is a plan view, and Figure 3C is a side view (viewed from the horizontal direction X). Figures 4A to 4E are schematic diagrams showing the housing 10 included in the hairbrush 1 according to this embodiment. Figure 4A is a perspective view, Figure 4B is a plan view, Figure 4C is a bottom view, Figure 4D is a cross-sectional view taken along line A-A' in Figure 4A, and Figure 4E is a cross-sectional view taken along line B-B' in Figure 4A.

[0015] The hairbrush 1 of this embodiment includes a housing 10, a brush head 20, and a cover 30. In this embodiment, the housing 10 and the brush head 20 are separate members that are independent of each other and are detachably connected to each other (see FIGS. 3A to 3C and 4A to 4E).

[0016] For example, the housing 10 is provided with a removal switch 174 for attaching or detaching the brush head 20 to or from the housing 10, a locking portion 175 for locking the brush head 20 attached to the housing 10, and a biasing member 176 for biasing the brush head 20 upward on the housing 10 (see FIGS. 4A to 4E). The removal switch 174 is, for example, a slide switch, and is normally biased so that the brush head 20 is fixed to the housing 10 (locked state). When the user slides the removal switch 174, the locked state is released and the brush head 20 is removed from the housing 10. The biasing member 176 is, for example, composed of a coil spring and a pressing member.

[0017] The housing 10 is a member capable of accommodating various structures and the like inside, and is formed of, for example, a resin material. The housing 10 has a rounded rectangular shape in a plan view (see FIG. 4B). The housing 10 may also have, for example, a rectangular shape, an elliptical shape, a trapezoidal shape, a diamond shape, a semicircular shape, a semi-elliptical shape, or a shape that is an arbitrary combination of various shapes in a plan view. The housing 10 may also have a shape whose area in a plan view decreases toward the bottom surface 160 (see FIGS. 4D and 4E). The housing 10 is provided with a magnetic body 41 and a first detection unit 42, as described below. The housing 10 may also include an electric component 130, as described below.

[0018] The brush head 20 includes a plurality of brush bristles 210 protruding from the housing 10. More specifically, the brush head 20 includes a brush surface 201, which is the surface from which the brush bristles 210 protrude, and a plurality of brush bristles 210 protruding from the brush surface 201. The brush bristles 210 protrude away from the housing 10. The brush surface 201 is a flat surface perpendicular to the up-down direction Z. The brush surface 201 preferably has substantially the same shape as the housing 10 in a planar view, for example, a rounded rectangular shape in a planar view (see FIG. 3B). A surface 202 of the brush head 20 opposite the brush surface 201 (see FIG. 3C) is also referred to as the back surface or rear surface of the brush head 20. The housing 10 is disposed adjacent to or in contact with the back surface 202 of the brush head 20 (see FIG. 2A, etc.).

[0019] The brush bristles 210 are made of, for example, a resin material, chemical fiber, animal hair, etc. The brush part 20 other than the brush bristles 210 is made of, for example, a resin material.

[0020] The cover portion 30 is a separate member independent of the housing 10 and the brush portion 20. The cover portion 30 is formed, for example, from a resin material. The cover portion 30 preferably has substantially the same shape as the housing 10 in a plan view, for example, a rounded rectangular shape in a plan view (see FIG. 1A). Furthermore, the outer surface 31 of the cover portion 30 preferably has a concave portion that is curved so as to form a recess on the housing 10 side in the closed state (see FIGS. 1A, 1D, and 1E). This makes it easier for the user to grip the cover portion 30, improving the usability of the hairbrush 1. Note that a portion of the outer surface 31 of the cover portion 30 may be a concave portion, or the entire outer surface 31 of the cover portion 30 may form a concave portion, as shown in FIG. 1A, etc.

[0021] When the cover part 30 is attached to the housing 10 to which the brush part 20 is attached so that the brush bristles 210 are housed inside the cover part 30, the closed state is realized (see FIGS. 1A to 1E). The inner surface 32 of the cover part 30 and the outer surface 150 of the housing 10 are close to each other or in contact with each other. When the cover part 30 is removed in the closed state to release the brush bristles 210, the open state is realized (see, for example, FIG. 2A and FIG. 5A described later).

[0022] In this embodiment, a magnetic body 41 and a first detection unit 42 are provided on the housing 10, and a magnet 40 is provided on the cover unit 30. When a user brings the cover unit 30 close to the housing 10 from above to achieve the closed state, the cover unit 30 and the first detection unit 42 attempt to magnetically connect via the magnetic body 41. This allows the user to easily achieve the closed state without applying force. In the closed state, the magnet 40 and the first detection unit 42 are magnetically connected via the magnetic body 41.

[0023] Also in this embodiment, in the closed state, the magnet 40, the magnetic body 41, and the first detection unit 42 are located in this order from the outside of the hairbrush 1 in a direction perpendicular to the direction Z in which the bristles 210 of the brush head 20 protrude (see part P1 in FIG. 6). The direction perpendicular to the direction Z in which the bristles 210 of the brush head 20 protrude is, for example, a direction parallel to the main surface of the brush surface 201. For example, if the main surface of the brush surface 201 is a plane extending along the horizontal direction X, the direction parallel to the main surface of the brush surface 201 corresponds to the horizontal direction X. FIG. 6 corresponds to a diagram in which a dotted frame P1 has been added to FIG. 1D.

[0024] The magnet 40 is disposed on the inner surface 32 of the cover part 30. The magnet 40 may be disposed in one or more locations on the inner surface 32 of the cover part 30, or may be provided along the inner periphery of the inner surface 32 of the cover part 30 for more than half the entire length of the inner periphery. The magnet 40 is preferably a neodymium magnet.

[0025] The magnetic body 41 is disposed on a portion of the outer surface 150 of the housing 10 that is close to or in contact with the magnet 40 of the cover part 30 in the closed state. In particular, it is preferable that the magnetic body 41 be disposed along the outer periphery of the outer surface 150 of the housing 10, over at least half of the total length of the outer periphery. In other words, if the outer periphery of the outer surface 150 of the housing 10 is taken as 100%, it is preferable that the length of the magnetic body 41 disposed on the outer surface 150 along the outer surface 150 be approximately 50% or more. This allows the user to more easily achieve the closed state, improving usability. In particular, it is more preferable that the length of the magnetic body 41 along the outer surface 150 be approximately 80% or more, and most preferably approximately 100%, i.e., the magnetic body 41 be disposed along the entire periphery of the outer surface 150.

[0026] The magnetic body 41 is, for example, a metal plate made of a magnetic metal. Examples of materials for the magnetic body 41 include iron, cobalt, nickel, and alloys thereof (such as stainless steel).

[0027] The first detection unit 42 is disposed in the housing 10 at approximately the same position in the horizontal direction X as the magnetic body 41. That is, when the housing 10 is viewed in cross section along the horizontal direction X, the first detection unit 42 and the magnetic body 41 are disposed so as to overlap. In a plan view, the magnetic body 41 and the first detection unit 42 may or may not overlap partially. The number of first detection units 42 provided in the hairbrush 1 is, for example, one. For example, if the first detection unit 42 is a Hall sensor, the Hall sensor 42 is disposed on a substrate within the housing 10. A signal conversion circuit, which will be described later, may be formed on this substrate.

[0028] The first detection unit 42 is preferably a Hall sensor. The Hall sensor 42 is a non-contact magnetic sensor that utilizes a galvanomagnetic effect known as the Hall effect to detect magnetic strength and output a digital signal. The Hall sensor 42 includes a Hall element that outputs a Hall voltage obtained through the Hall effect and a signal conversion circuit that converts the Hall voltage into a High or Low signal. The signal conversion circuit may also include a comparator amplifier. The Hall sensor 42 may be, for example, a switch-type Hall sensor that outputs either a High or Low signal when the magnet 40 magnetically approaches and the other signal when the magnet 40 moves away. The Hall sensor 42 may be a unipolar detection type that detects either the north or south pole of the magnet 40, or a bipolar detection type that detects both the north and south poles. However, since the orientation of the magnet 40 does not need to be considered, the Hall sensor 42 is preferably a bipolar detection type. The hairbrush 1 according to this embodiment preferably includes a switch-type Hall sensor.

[0029] The Hall sensor 42 is preferably disposed so as to detect the magnetic field on the outer surface 150 side of the housing 10. The Hall sensor 42 may be a plate-shaped IC chip disposed on a substrate, and may be disposed, for example, so that the main surface of the Hall sensor 42 or the main surface of the substrate on which the Hall sensor 42 is disposed is parallel to the vertical direction Z of the housing 10. The main surface of the Hall sensor is preferably disposed so as to face the magnetic body 41 disposed on the outer surface 150.

[0030] The housing 10 and the cover unit 30 may each include a first fitting portion 151 and a second fitting portion 34 that fit together. This allows the closed state to be firmly maintained, further improving usability. As shown in FIGS. 2D, 2E, 4A, etc., a rib 151 is formed around the entire periphery of the outer surface 150 of the housing 10, and this rib 151 is an example of the first fitting portion 151. The first fitting portion 151 is located below a magnetic body 41 provided on the outer surface 150 of the housing 10. The first fitting portion 151 may be provided on a portion of the outer surface 150, rather than the entire periphery. A second fitting portion 34 that fits into the first fitting portion 151 is provided on a portion or the entire periphery of the inner surface 32 of the cover unit 30 (see FIGS. 1D and 1E). In this way, if the housing 10 and the cover part 30 each have a first fitting part 151 and a second fitting part 34 that fit together, and the tip side of the direction Z in which the brush bristles 210 protrude is the upper side Z1, it is preferable that the first fitting part 151 is provided below the magnetic body 41 (or the magnet 40 in embodiment 4 described below) provided on the outer surface 150 of the housing 10.

[0031] As described above, the housing 10 preferably includes the electric component 130. Examples of the electric component 130 include a charged particle generating unit, a blower fan, or an electric heater, and the housing 10 may include two or more electric components. For example, a hairbrush 1 including the charged particle generating unit 130 as an electric component can apply charged particles to the user's hair when combing it, thereby removing static electricity and untangling the hair, making it easier for the user to style (set) the hair. In this embodiment, a case where the charged particle generating unit 130 is used as the electric component 130 will be described.

[0032] Charged particles refer to particles that are not electrically neutral or active species that have been activated to a non-electrically neutral state. Charged particles are not limited to particles with an electric charge, but also include, for example, particles such as atoms and molecules that have no electric charge but have unpaired electrons. Specifically, charged particles include, for example, positively charged ions (referred to as positive ions), negatively charged ions (referred to as negative ions), positive ion complexes, negative ion complexes, radicals, electrons, and protons. Among these, the charged particles are preferably at least one of positive ions or their complexes and negative ions or their complexes. The charged particle generating unit 130 may generate one type of charged particle or multiple types of charged particles.

[0033] The number of charged particle generating electrodes included in the charged particle generating unit 130 may be one or more, but for example, the charged particle generating unit 130 preferably includes a first charged particle generating electrode 111 that generates positive ions or complexes thereof, and a second charged particle generating electrode 112 that generates negative ions or complexes thereof (see FIG. 4A, etc.). Note that the first charged particle generating electrode 111 may be an electrode that generates negative ions or complexes thereof, and the second charged particle generating electrode 112 may be an electrode that generates negative ions or complexes thereof.

[0034] The charged particle generating unit 130 includes, for example, a transformer driving circuit board (not shown), a high-voltage transformer (not shown) driven by the high-voltage transformer driving circuit to boost the input voltage, and a board 113 having charged particle generating electrodes 111 and 112 that generate charged particles. The transformer driving circuit board is a driving circuit board for driving the high-voltage transformer with an external input voltage, and the high-voltage transformer (high-voltage circuit) is a circuit driven by the high-voltage transformer driving circuit to boost the input voltage. The board 113 is provided with the charged particle generating electrodes 111 and 112 and dielectric electrodes (not shown) for forming an electric field between the charged particle generating electrodes 111 and 112. The dielectric electrodes are formed, for example, in a ring shape around the mounting positions of the charged particle generating electrodes 111 and 112 and are at ground potential. Charged particles are generated when the voltage boosted by the high-voltage transformer is applied to the charged particle generating electrodes 111 and 112.

[0035] The charged particle generating electrodes 111, 112 may be needle-shaped (see FIG. 4D ) or may be brush-shaped and made of multiple linear conductors. The charged particle generating electrodes 111, 112 are formed of a conductive material such as metal, carbon fiber, conductive fiber, or conductive resin. The charged particle generating electrodes 111, 112 are disposed perpendicular to the surface of the substrate 113 and protrude from the surface of the housing 10 toward the brush surface 201. The tips of the charged particle generating electrodes 111, 112 are preferably located above the brush surface 201 and below the tips of the multiple brush bristles 210. The brush part 20 is provided with openings 23 through which the charged particle generating electrodes 111, 112 protrude. In addition, a surrounding wall 120 is preferably provided to surround the charged particle generating electrodes 111, 112 in order to protect the scalp and the like from the charged particle generating electrodes 111, 112. The surrounding wall 120 is located above the brush surface 201 , and the tips of the charged particle generating electrodes 111 and 112 are located below the upper end of the surrounding wall 120 .

[0036] The hairbrush 1 equipped with the electric component 130 is also provided with a control unit 180 that controls the electric component 130, and a power supply unit 140 that supplies power to the electric component 130. The control unit 180 and the power supply unit 140 are arranged in, for example, the housing 10. Although the drawings show an embodiment in which the power supply unit 140 includes batteries 141, 142 and a power supply circuit, the hairbrush 1 may also include, as the power supply unit 140, a rechargeable battery and a battery charging power receiving terminal (for example, a USB female connector) that can be electrically connected to an external charging power supply terminal.

[0037] (Embodiment 2) In this embodiment, if the tip side of the bristles 210 in the direction Z in which they protrude is defined as the upper side Z1, when the brush is in the closed state, the magnet 40, magnetic body 41, and first detection unit 42 are located in this order from the upper side Z1 in the direction Z in which the bristles 210 protrude (see FIG. 7). The hairbrush 1 of this embodiment is substantially the same as the hairbrush 1 of embodiment 1, except that the arrangement order of the magnet 40, magnetic body 41, and first detection unit 42 is different, so redundant explanations will be omitted.

[0038] Fig. 7 is a diagram conceptually showing the arrangement order of the magnet 40, the magnetic body 41, and the first detection unit 42 in the closed state of the hairbrush 1 of this embodiment. Fig. 7 shows a portion corresponding to part P1 in Fig. 6 according to the first embodiment.

[0039] As shown in FIG. 7 , the magnet 40 is disposed at the lower end of the cover unit 30 (meaning the lower end of the cover unit 30 in the closed state). The magnetic body 41 is disposed at a portion of the outer surface 150 of the housing 10 that is close to or in contact with the magnet 40 of the cover unit 30 in the closed state. In FIG. 7 , a convex portion 152 extending outward is formed on the outer surface 150 of the housing 10 so as to be close to or in contact with the lower end of the cover unit 30, and the magnetic body 41 is disposed at the upper end of the convex portion 152. In this embodiment, too, the magnetic body 41 is preferably provided along the outer periphery of the outer surface 150 of the housing 10, for at least half the entire length of the periphery. Furthermore, the first detection unit 42, such as a Hall sensor, is disposed below the magnetic body 41 inside the convex portion 152 provided on the outer surface 150 of the housing 10.

[0040] (Embodiment 3) In the hairbrush 2 of this embodiment, when in the closed state, the magnet 40 is located outside the housing 10 relative to the first detection unit 42 (see FIG. 8). The hairbrush 2 of this embodiment is substantially similar to the hairbrush 2 of embodiment 2, except that the arrangement of the magnet 40 and the first detection unit 42 is limited in this way, so a duplicated description will be omitted.

[0041] Fig. 8 is a diagram conceptually showing the arrangement order of the magnet 40, the magnetic body 41, and the first detection unit 42 in the closed state in the hairbrush 1 according to this embodiment. Fig. 8 shows a portion corresponding to part P1 in Fig. 6 according to the first embodiment.

[0042] As shown in FIG. 8 , the magnet 40 is disposed at the lower end of the cover 30 (meaning the lower end of the cover 30 in the closed state). A first detection unit 42, such as a Hall sensor, is disposed inside the housing 10. The magnetic body 41 is provided in the housing 10, and has a length and shape that allows it to be close to or in contact with the magnet 40 of the cover 30 and also close to or in contact with the first detection unit 42 inside the housing 10 in a cross-sectional view. In FIG. 8 , the magnetic body 41 is disposed from the outer surface 150 of the housing 10 to the inside of the housing 10, and is in contact with the magnet 40 disposed at the lower end of the cover 30 on the outer surface 150 of the housing 10, and is in contact with the first detection unit 42 inside the housing 10. In this embodiment as well, the magnetic body 41 is preferably provided along the outer periphery of the outer surface 150 of the housing 10 for at least half the entire circumference of the periphery.

[0043] (Embodiment 4) In the first to third embodiments, the magnet 40 is provided on the cover portion 30 and the magnetic body 41 is provided on the housing 10, but the magnetic body 41 may be provided on the cover portion 30 and the magnet 40 may be provided on the housing 10. In the hairbrush 1 of the present embodiment, the magnetic body 41 is provided on the cover portion 30 and the magnet 40 is provided on the housing 10. Other than this point, this embodiment is substantially the same as the first, second or third embodiment, so a duplicated description will be omitted.

[0044] In this embodiment, when in the closed state, the magnetic body 41, the magnet 40 and the first detection unit 42 may be arranged so that the magnetic body 41, the magnet 40 and the first detection unit 42 are located in that order from the outside of the hairbrush 1 in a direction perpendicular to the direction Z in which the bristles 210 of the brush part 20 protrude (see embodiment 1), or so that the magnetic body 41, the magnet 40 and the first detection unit 42 are located in that order from the upper side Z1 in the direction Z in which the bristles 210 protrude (see embodiment 2), or so that the magnetic body 41, the magnet 40 and the first detection unit 42 are located in that order from the upper side Z1 in the direction Z in which the bristles 210 protrude, and the magnetic body 41 is located further outside the housing 10 than the first detection unit 42 (see embodiment 3). Examples of these arrangement orders are conceptually shown, for example, in part P1 of Figure 6, Figures 7 and 8 (however, in these figures, reference numeral 40 should be read as magnetic material 41, and reference numeral 41 should be read as magnet 40).

[0045] The magnet 40 is disposed on the outer surface 150 of the housing 10. The magnet 40 may be disposed in one or more locations on the outer surface 150 of the housing 10, or may be provided along the outer periphery of the outer surface 150 of the housing 10 for more than half the entire length of the periphery.

[0046] The magnetic body 41 is disposed on a portion of the inner surface 32 of the cover unit 30 that is close to or in contact with the magnet 40 of the housing 10 in the closed state. In particular, it is preferable that the magnetic body 41 be disposed along at least half of the entire circumference of the inner periphery of the inner surface 32 of the cover unit 30. That is, if the inner circumference of the inner surface 32 of the cover unit 30 is taken as 100%, it is preferable that the length of the magnetic body 41 disposed along the inner surface 32 be approximately 50% or more. This allows the user to more easily achieve the closed state, thereby improving usability. In particular, it is more preferable that the length of the magnetic body 41 along the inner surface 32 be approximately 80% or more, and most preferably approximately 100%, i.e., the magnetic body 41 be disposed along the entire circumference of the inner surface 32.

[0047] (Embodiment 5) In this embodiment, if the tip side of the brush bristles 210 in the protruding direction Z is defined as the upper side Z1, the cover unit 30 is detachably attached to the lower part of the housing 10 in the open state (see FIGS. 5A to 5E). Of the open states, the state in which the cover unit 30 is attached to the lower part of the housing 10 is also referred to as the second open state. This embodiment is the same as Embodiments 1, 2, 3, or 4 except that the hairbrush 1 can achieve the second open state, so duplicated explanations will be omitted. The lower part of the housing 10 is the part on the bottom surface 160 side of the housing 10. The user can use the hairbrush 1 while holding the cover unit 30 attached to the lower part of the housing 10. This makes it easier for the user to hold the hairbrush 1 and also prevents the cover unit 30 from being lost.

[0048] Figures 5A to 5E are schematic diagrams showing the hairbrush 1 according to this embodiment. Specifically, Figures 5A to 5E show the hairbrush 1 in an open state in which the cover 30 is attached to the bottom of the housing 10 (second open state), with Figure 5A being a perspective view, Figure 5B being a plan view, Figure 5C being a bottom view, Figure 5D being a cross-sectional view taken along line A-A' in Figure 5A, and Figure 5E being a cross-sectional view taken along line B-B' in Figure 5A.

[0049] The main surface of the top surface 33 of the cover part 30 may be substantially flat (see FIG. 5E, etc.). In this case, the user can place the hairbrush 1 on a horizontal surface while it is in the second open state.

[0050] (Embodiment 6) In embodiments 1 to 5, the housing 10 and the brush head 20 are configured as separate, independent members, but the housing 10 and the brush head 20 may be integrated. In the hairbrush 1 of this embodiment, the housing 10 and the brush head 20 are integrated to form a single member. This embodiment is substantially the same as embodiment 1, 2, 3, 4, or 5 except for this point, so redundant explanations will be omitted. Figures 2A to 2E can be said to be diagrams that schematically show the housing 10 and the brush head 20 integrated into a member in the hairbrush 1 according to this embodiment.

[0051] (Embodiment 7) 9 is a block diagram showing the configuration of the main parts of the hairbrush 1 according to this embodiment. The control details described in this embodiment can be commonly referred to for the hairbrushes 1 according to the first to sixth embodiments.

[0052] In addition to the housing 10, the brush part 20, and the cover part 30, the hairbrush 1 further includes a control unit 180 and an electric component 130 controlled by the control unit 180. The control unit 180 and the electric component 130 are provided, for example, in the housing 10. The control unit 180 includes, for example, a chip-like control component and a board on which the control component is mounted. The control unit 180 may be a microcomputer (also called a microcomputer).

[0053] Control unit 180 includes determination unit 181 (see FIG. 9). Determination unit 181 determines that the state is closed when magnet 40 and first detection unit 42 are magnetically connected via magnetic body 41, and determines that the state is open when magnet 40 and magnetic body 41 are magnetically disconnected or when magnetic body 41 and first detection unit 42 are magnetically disconnected. In this way, hairbrush 1 according to this embodiment further includes control unit 180, and control unit 180 includes determination unit 181 that makes the above-described determination.

[0054] The control unit 180 controls the driving of the electric component 130. The part of the control unit 180 that controls the driving of the electric component 130 is also referred to as the driving unit 182. For example, if the determination unit 181 determines that the cover unit 30 is in the open state, the driving unit 182 starts driving the electric component 130, and if the determination unit 181 determines that the cover unit 30 is in the closed state, the driving unit 182 stops driving the electric component 130. In this case, the user only needs to open or close the cover unit 30 to automatically drive the electric component 130, making the hairbrush 1 more user-friendly and convenient. As described above, the hairbrush 1 according to this embodiment further includes the electric component 130, which is controlled by the control unit 180, inside the housing 10. Preferably, the control unit 180 starts driving the electric component 130 when the determination unit 181 determines that the cover unit 30 is in the open state, and stops driving the electric component 130 when the determination unit 181 determines that the cover unit 30 is in the closed state. Specific examples of the electrical component 130 are as described above, but the electrical component 130 is preferably a charged particle generating unit, and the charged particle generating unit 130 preferably includes a charged particle generating electrode that generates charged particles.

[0055] As described above, hairbrush 1 of the present embodiment includes magnet 40, magnetic body 41, and first detector 42, and can switch the current path to electrical component 130 between an ON state and an OFF state in response to the opening and closing of cover 30. In other words, hairbrush 1 of the present embodiment can be said to include magnet 40, magnetic body 41, and first detector 42 as power switch 170 that switches the current path to electrical component 130 between an ON state and an OFF state. Note that, although FIGS. 4A to 4E and the like illustrate hairbrush 1 that includes, as power switch 170, push button 171, physical switch 172 (e.g., a tactile switch) that operates in response to the movement of push button 171, and light 173 (e.g., an LED light), hairbrush 1 does not necessarily have to include push button 171, physical switch 172, and light 173.

[0056] (Embodiment 8) The hairbrush 1 according to this embodiment further includes at least one of a clock unit 431 that measures the elapsed time since the start of operation of the electrical component (preferably the charged particle generating unit) 130, and a second detection unit 432 that detects whether the hairbrush 1 is in use or not. This embodiment is substantially similar to the hairbrush 1 according to embodiment 7 except for this point, so a redundant description will be omitted. FIG. 10 is a block diagram showing the configuration of the main parts of the hairbrush 1 according to this embodiment. In FIG. 10, reference numeral 43 denotes the clock unit 431 and / or the second detection unit 432. In this embodiment, a case where a charged particle generating unit is used as the electrical component will be described as an example.

[0057] The clock unit 431 starts counting the elapsed time when the control unit 180 starts driving the charged particle generation unit 130. The clock unit 431 may be a timer in a microcomputer that counts an internal clock, but is preferably an RTC (Real Time Clock) that outputs absolute time information that indicates the actual time. The clock unit 431 may be disposed inside the housing 10 or on the outer surface of the housing 10.

[0058] The second detection unit 432 detects whether the hairbrush 1 is in use or not. The second detection unit 432 is, for example, a 3D sensor or a capacitance switch, and is provided in the housing 10 or the brush unit 20, for example.

[0059] The 3D sensor is preferably, for example, a three-dimensional acceleration sensor. For example, if the acceleration detected by the three-dimensional acceleration sensor is equal to or greater than a predetermined value, it is determined that the hairbrush 1 is in use, and if the acceleration is less than the predetermined value, it is determined that the hairbrush 1 is not in use. The 3D sensor may be disposed inside the housing 10 or on the outer surface of the housing 10.

[0060] The capacitance switch is a device whose capacitance changes when a conductor (i.e., a user's hand) approaches. For example, if the capacitance detected by the capacitance switch is equal to or greater than a predetermined value, it is determined that the hairbrush 1 is in use, and if the capacitance is less than the predetermined value, it is determined that the hairbrush 1 is not in use. The capacitance switch is disposed, for example, on the outer surface of the housing 10 or on the brush part 20.

[0061] The driving section 182 starts driving the charged particle generating unit 130 when it determines that the determining section 181 is in the open state, and stops driving the charged particle generating unit 130 when it determines that the determining section 181 is in the closed state.

[0062] Furthermore, when the drive unit 182 is in the open state, the drive unit 182 stops the operation of the charged particle generating unit 130 when (i) the elapsed time acquired from the clock unit 431 reaches a certain time, (ii) the second detection unit 432 does not detect the use of the hairbrush 1 until the elapsed time acquired from the clock unit 431 reaches a certain time after the start of operation of the charged particle generating unit 130, or (iii) the second detection unit 432 detects the non-use of the hairbrush 1 after the start of operation of the charged particle generating unit 130. In other words, the operation of the charged particle generating unit 130 is automatically stopped even if the user does not perform the action of closing the cover part 30. This reduces unnecessary power consumption. Furthermore, such a hairbrush 1 can extend the life of the batteries 141, 142 and the charged particle generating unit 130 and further enhance safety. The certain time is, for example, 10 seconds or more.

[0063] The hairbrush 1 in which the driving unit 182 stops driving the charged particle generating unit 130 in the above case (i) includes at least a clock unit 431. In such a hairbrush 1, the driving unit 182 stops driving the charged particle generating unit 130 when a certain time has elapsed since the driving unit 182 started driving the charged particle generating unit 130.

[0064] The hairbrush 1 in which the driving unit 182 stops driving the charged particle generating unit 130 in the above case (ii) includes a clock unit 431 and a second detection unit 432. In such a hairbrush 1, if the second detection unit 432 does not detect the use of the hairbrush 1 within a certain time period after the driving unit 182 starts driving the charged particle generating unit 130 (for example, if the 3D sensor does not detect vibrations or if the capacitance switch does not detect a change in capacitance), the driving unit 182 stops driving the charged particle generating unit 130.

[0065] Here, if the second detection unit 432 detects the use of the hairbrush 1 before a certain time has elapsed since the drive unit 182 started driving the charged particle generation unit 130 (for example, if the 3D sensor detects acceleration equal to or greater than a predetermined value, or if the capacitance switch detects capacitance equal to or greater than a predetermined value), the drive unit 182 continues driving the charged particle generation unit 130 without stopping the driving, even if a certain time has elapsed since the drive unit 182 started driving the charged particle generation unit 130. Note that even if the second detection unit 432 detects the use of the hairbrush 1 before a certain time has elapsed since the drive unit 182 started driving the charged particle generation unit 130, if the second detection unit 432 does not detect the use of the hairbrush 1 after the certain time has elapsed, the drive unit 182 may stop the driving of the charged particle generation unit 130.

[0066] The hairbrush 1 in which the driving unit 182 stops driving the charged particle generating unit 130 in the above case (iii) includes at least a second detection unit 432. In such a hairbrush 1, if the second detection unit 432 detects that the hairbrush 1 is not in use after starting to drive the charged particle generating unit 130, regardless of the passage of time (for example, if the 3D sensor no longer detects vibrations or if the capacitance switch detects a change in capacitance exceeding a predetermined range), the driving unit 182 stops driving the charged particle generating unit 130. If the second detection unit 432 does not detect that the hairbrush 1 is in use, regardless of the passage of time (for example, if the 3D sensor does not detect vibrations or if the capacitance switch does not detect a change in capacitance), the driving unit 182 may immediately stop driving the charged particle generating unit 130.

[0067] In this embodiment, when the driving of the charged particle generating unit 130 is stopped in the open state, the driving unit 182 preferably starts driving the charged particle generating unit 130 if the determination unit 181 determines that the hairbrush 1 has transitioned through the closed state and is now in the open state. For example, if the driving of the charged particle generating unit 130 is stopped in the hairbrush 1 in the first open state or the second open state, when the user intends to use the hairbrush 1 again, the user first attaches the cover unit 30 to the housing 10 so as to cover the bristles 210 to set the hairbrush 1 in the closed state, and then removes the cover unit 30 from the housing 10 again to set the hairbrush 1 in the open state (the first open state or the second open state). When the determination unit 181 determines that this position is the open state, the driving unit 182 starts driving the charged particle generating unit 130. In such a hairbrush 1, malfunctions are prevented.

[0068] Compared to other electrical components such as a blower fan, the charged particle generating unit 130 produces almost no airflow or driving noise while in operation, making it difficult for a user to recognize that the charged particle generating unit 130 is operating. Therefore, when a user uses a hairbrush 1 that does not have a blower fan but has the charged particle generating unit 130, it is conceivable that after use, the user will leave the cover 30 open without closing it. If the charged particle generating unit 130 continues to operate, for example, the batteries 141 and 142 will be depleted, and the next time the hairbrush is used, the batteries may run out of power and the hairbrush 1 may not be able to generate charged particles. However, the hairbrush 1 of this embodiment can prevent such a situation.

[0069] (Embodiment 9) The hairbrush 2 of this embodiment includes a housing 10, a brush unit 20, a charged particle generating unit 130 provided in the housing 10, a cover unit 30, and a control unit 180 that controls the driving of the charged particle generating unit 130. The hairbrush 2 preferably further includes a power switch unit 170 that switches the current path to the charged particle generating unit 130 between an on state and an off state, and a clock unit 431 that measures the elapsed time from the start of driving the charged particle generating unit 130. The control unit 180 stops the driving of the charged particle generating unit 130 when a certain time has elapsed since the start of driving the charged particle generating unit 130.

[0070] The structure of the hairbrush 2 of this embodiment is substantially the same as that of the hairbrush 1 of embodiment 8, except that the magnet 40, the magnetic body 41, and the first detection unit 42 do not necessarily have to be provided, and the control details in the hairbrush 2 are substantially the same as the control in case (i) described in embodiment 8, so a duplicated description will be omitted. Note that, in this embodiment as well, the number of charged particle generating electrodes provided in the charged particle generating unit 130 may be one or more, but it is preferable that the charged particle generating unit 130 includes a first charged particle generating electrode 111 that generates positive ions or their complexes, and a second charged particle generating electrode 112 that generates negative ions or their complexes (see embodiment 1).

[0071] The power switch unit 170 is a part that switches the current path to the charged particle generation unit 130 between an on state and an off state. The power switch unit 170 preferably includes at least one type selected from the group consisting of a hall sensor, an illuminance sensor, and a physical switch.

[0072] For example, when the power switch section 170 includes a Hall sensor, the hairbrush 2 preferably further includes a magnet 40 and a magnetic body 41, as in the first to sixth embodiments. In this case, the hairbrush 2 can switch the current path to the charged particle generating unit 130 between an on state and an off state in response to the opening and closing operation of the cover section 30 by the user (see also the seventh and eighth embodiments).

[0073] When the power switch unit 170 includes an illuminance sensor, the illuminance sensor is preferably a sensor sensitive to visible light. The illuminance sensor is also preferably disposed in a location (such as the brush surface 201) that does not sense external visible light in the closed state but can sense external visible light in the open state. In this case, the hairbrush 2 can switch the current path to the charged particle generating unit 130 between an on state and an off state in response to the opening and closing operation of the cover unit 30 by the user.

[0074] 4A to 4D, etc. show an example of a case where the power switch section 170 includes a physical switch. The power switch section 170 includes a push button 171 operated by the user, a physical switch 172 (e.g., a tactile switch) that moves in conjunction with the movement of the push button 171, and a light 173 (e.g., an LED light). When the user presses the push button 171, the push button 171 moves toward the tactile switch 172, and when the tactile switch 172 is pressed in conjunction with this, the current path to the electrical component 130 is turned on. The light 173 lights up when the current path to the charged particle generation unit 130 is turned on, and goes out when the current path is turned off. When the hairbrush 1 includes this light 173, the user can easily recognize the on or off state.

[0075] The control unit 180 starts driving the charged particle generating unit 130 when it is in the ON state, and stops driving the charged particle generating unit 130 when it is in the OFF state. The control unit 180 also stops driving the charged particle generating unit 130 when the elapsed time acquired from the clock unit 431 in the ON state reaches a certain time. In other words, the driving of the electrical component 130 is automatically stopped. Therefore, unnecessary power consumption is suppressed. Furthermore, such a hairbrush 2 can extend the life of the batteries 141, 142 and the electrical component 130, and is even safer. The certain time is, for example, 10 seconds or more.

[0076] Here, compared to, for example, a blower fan, the charged particle generating unit 130 produces almost no airflow or driving noise while in operation, making it difficult for a user to recognize that the charged particle generating unit 130 is in operation (i.e., in the on state). Therefore, when a user uses, for example, a hairbrush 2 that does not have a blower fan but has the charged particle generating unit 130, it is conceivable that after use, the user will forget to turn it off and leave the hairbrush 2 in the on state. If the charged particle generating unit 130 continues to operate, for example, the batteries 141 and 142 will be depleted, and the next time the hairbrush 2 is used, it may run out of power and be unable to generate charged particles. However, the hairbrush 2 of this embodiment can prevent such a situation.

[0077] In this embodiment, when the driving of the charged particle generating unit 130 is stopped a certain time after it has been turned on, the control unit 180 (drive unit 182) preferably starts driving the charged particle generating unit 130 if the determination unit 181 determines that the hairbrush 2 has been turned on after passing through the off state. For example, in a hairbrush 2 in which the physical switch is in the on state, if the driving of the charged particle generating unit 130 is stopped and the user attempts to use the hairbrush 2 again, the user first operates the physical switch to turn it off, and then operates the physical switch again to turn it on. The control unit 180 (drive unit 182) starts driving the charged particle generating unit 130 again when it is turned on. In such a hairbrush 2, malfunctions are prevented.

[0078] (Embodiment 10) The hairbrush 2 of the ninth embodiment may further include a detection unit that detects that the hairbrush 2 is being used. The hairbrush 2 of the present embodiment further includes a detection unit that detects that the hairbrush 2 is being used, and if the detection unit detects that the hairbrush 2 has been used before the above-mentioned certain time has elapsed, the control unit 180 does not stop driving the charged particle generating unit 130 even if the certain time has elapsed since the start of driving the charged particle generating unit 130. This embodiment is substantially the same as the ninth embodiment except for these points, so a duplicated description will be omitted.

[0079] The detector that detects that the hairbrush 2 is being used is, for example, the above-described second detector 432, and is provided, for example, in the housing 10 or the brush unit 20. In this embodiment, an example will be described in which the second detector 432 is used as the detector that detects that the hairbrush 2 is being used. Figure 11 is a block diagram showing the configuration of the main parts of the hairbrush 2 according to this embodiment.

[0080] As described above in the ninth embodiment, in the on state, the control unit 180 stops driving the charged particle generating unit 130 when the elapsed time acquired from the clock unit 431 reaches a certain time. Furthermore, in this embodiment, if the second detection unit 432 detects that the hairbrush 2 has been used before the certain time has elapsed since the start of driving the charged particle generating unit 130, the control unit 180 does not stop driving the charged particle generating unit 130 even if the certain time has elapsed since the start of driving the charged particle generating unit 130. This control content is substantially the same as the control in the case (ii) described in the eighth embodiment. The hairbrush 2 of this embodiment can achieve low power consumption and is extremely easy to use.

[0081] The control unit 180 may stop driving the charged particle generating unit 130 regardless of the passage of time if the second detection unit 432 detects that the hairbrush 1 is not being used after the start of driving the charged particle generating unit 130. The control unit 180 may also immediately stop driving the charged particle generating unit 130 regardless of the passage of time if the second detection unit 432 does not detect that the hairbrush 2 is being used. Such control content is substantially similar to the control in the above case (iii) described in embodiment 8.

[0082] In this embodiment as well, when the driving of the charged particle generating unit 130 is stopped after a certain time has elapsed since it entered the on state, it is preferable that the control unit 180 (driving unit 182) starts driving the charged particle generating unit 130 if the judgment unit 181 judges that it has now entered the on state after passing through the off state (see embodiment 9).

[0083] Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above embodiments and can be implemented in various forms without departing from the spirit of the present disclosure. Furthermore, the components disclosed in the above embodiments can be modified as appropriate. For example, some of the components shown in one embodiment may be added to the components of another embodiment, or some of the components shown in one embodiment may be deleted from the embodiment.

[0084] Furthermore, the drawings mainly show each component in a schematic manner to facilitate understanding of the invention, and the thickness, length, number, spacing, etc. of each component shown in the drawings may differ from the actual ones due to the convenience of creating the drawings. Furthermore, the configurations of each component shown in the above embodiment are merely examples and are not particularly limited, and it goes without saying that various modifications are possible within a scope that does not substantially deviate from the effects of the present disclosure. [Explanation of symbols]

[0085] 1, 2: Hairbrush 10: Housing 20: Brush section 23 :Aperture 30: Cover part 31:Outer surface 32: Inner surface 33: Top 34: Second fitting part 40: Magnet 41:Magnetic material 42: First detection unit (e.g., Hall sensor) 43: Clock unit and / or second detection unit 111, 112: charged particle generating electrodes 113: Substrate 120: Surrounding wall 130: Electrical components (e.g., charged particle generating units) 140: Power supply unit 141, 142:Battery 150:Outer surface 151: First fitting portion (e.g., rib) 152: Convex part 160: Bottom 170: Power switch section 171: Push button 172: Physical switch (e.g., tactile switch) 173: Lighting 174: Removal switch 175: Locking part 176: biasing member 180: Control unit 181: Judgment section 182: Drive unit 201: Brush surface 202: Back side 210:Brush hair 431: Clock section 432: Second detection unit

Claims

1. The housing and a brush portion including a plurality of brush bristles protruding from the housing; A hairbrush comprising: a cover portion detachably provided on the housing, the cover portion being changeable between a closed state in which the brush portion is housed inside and an open state in which the brush portion is open; the cover and the housing are configured such that an inner surface of the cover and an outer surface of the housing are close to or in contact with each other in the closed state; a magnet is provided on one of the cover portion and the housing, and a magnetic body is provided on the other of the cover portion and the housing; the housing includes a first detection unit, The hairbrush, wherein the first detection unit is magnetically connected to the magnet via the magnetic body in the closed state.

2. 2. The hairbrush of claim 1, wherein the tip side of the brush bristles in the direction in which they protrude is the upper side, and when the hairbrush is in the closed state, the magnet, the magnetic body, and the first detection unit are positioned in this order from the upper side in the direction in which the brush bristles protrude.

3. The hairbrush according to claim 2 , wherein when the hairbrush is in the closed state, the magnet is located outside the housing relative to the first detection unit.

4. 2. The hairbrush of claim 1, wherein when in the closed state, the magnet, the magnetic body, and the first detection unit are positioned in this order from the outside of the hairbrush in a direction perpendicular to the direction in which the brush bristles of the brush unit protrude.

5. The hairbrush of claim 1, wherein the magnetic material is provided along the inner circumference of the inner surface of the cover portion for more than half the total length of the inner circumference, or the magnetic material is provided along the outer circumference of the outer surface of the housing for more than half the total length of the outer circumference.

6. A hairbrush according to any one of claims 2 to 4, wherein the magnetic material is provided along the inner periphery of the inner surface of the cover portion for more than half the total length of the inner periphery, or the magnetic material is provided along the outer periphery of the outer surface of the housing for more than half the total length of the outer periphery.

7. Further comprising a control unit, The hairbrush of any one of claims 1 to 5, wherein the control unit is provided with a determination unit that determines that the hairbrush is in the closed state when the magnet and the first detection unit are magnetically connected via the magnetic body, and that determines that the hairbrush is in the open state when the magnet and the magnetic body become magnetically disconnected or when the magnetic body and the first detection unit become magnetically disconnected.

8. Further, an electrical component controlled by the control unit is provided in the housing, The hairbrush according to claim 7, wherein the control unit starts driving the electrical component when the determination unit determines that the determination unit is in the open state, and stops driving the electrical component when the determination unit determines that the determination unit is in the closed state.

9. the electrical component is a charged particle generating unit; The hairbrush of claim 8 , wherein the charged particle generating unit comprises a charged particle generating electrode that generates charged particles.

10. The hairbrush further includes at least one of a clock unit that measures the elapsed time from the start of driving of the charged particle generating unit and a second detection unit that detects whether the hairbrush is in use or not, 10. The hairbrush according to claim 9, wherein, when the control unit is in the open state, the control unit stops driving the charged particle generating unit when the elapsed time acquired from the clock unit reaches a certain time, when the second detection unit does not detect the use of the hairbrush until the elapsed time acquired from the clock unit reaches a certain time from the start of driving the charged particle generating unit, or when the second detection unit detects the non-use of the hairbrush after the start of driving the charged particle generating unit.

11. 11. The hairbrush according to claim 10, wherein when the driving of the charged particle generating unit is stopped in the open state, the control unit starts driving the charged particle generating unit when the determination unit determines that the hairbrush has now passed through the closed state and is now in the open state.

12. The hairbrush according to any one of claims 1 to 5, wherein the outer surface of the cover has a concave portion that is curved so as to form a recess on the housing side in the closed state.

13. The housing and a brush portion including a plurality of brush bristles protruding from the housing; a charged particle generating unit provided in the housing for generating charged particles; a cover portion that is detachably provided on the housing and that can be changed between a closed state in which the brush portion is housed therein and an open state in which the brush portion is exposed; a control unit that controls the driving of the charged particle generating unit; Equipped with The control unit stops driving the charged particle generating unit when a certain time has elapsed since starting to drive the charged particle generating unit.

14. Further, a detection unit is provided to detect that the hairbrush is being used, The hairbrush according to claim 13, wherein the control unit does not stop driving the charged particle generating unit even if the certain time has elapsed since the start of driving the charged particle generating unit if the detection unit detects that the hairbrush has been used before the certain time has elapsed.

15. 15. The hairbrush according to claim 13, wherein when the driving of the charged particle generating unit is stopped after a certain time has elapsed since the on state, the control unit starts driving the charged particle generating unit when the charged particle generating unit is again switched to the on state via the off state.

Images