Massage brush

Abstract

To provide a massage brush that is more convenient to use and provides a better massage effect. [Solution] The massage brush 1 comprises a housing 10, a brush section 12, and a drive unit 14. The housing 10 has an upper section 10a having a gripping section 11, a bottom section 10c having a plurality of brush mounting sections 12a arranged along its outer circumference, and an intermediate section 10b located between the upper section 10a and the bottom section 10c. The brush section 12 has a plurality of brush bristles 21, each of which is arranged on the brush mounting sections 12a. The drive unit 14 is located inside the housing 10 and synchronously swings the brush section 12, driving the brush bristles 21 to tilt toward the center of the bottom section 10c.

Description

Technical Field

[0001] The present invention relates to a hand-held massage brush used by applying it to the skin such as the face and scalp.

Background Art

[0002] In order to improve the condition of the scalp and hair, a massage brush that performs massage by applying a brush to the head and the like is known. For example, Patent Document 1 discloses a hand-held massage device with a replaceable head portion. Further, Patent Document 2 discloses an essential oil massage brush that performs scalp massage while releasing atomized essential oil onto the scalp and hair.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] The massage device described in Patent Document 1 has a massage action part including a comb tooth groove module and a comb tooth module, and the first comb teeth 256 and the second comb teeth 257 are driven to swing.

[0005] In the massage device described in Patent Document 1, a head portion 2 having comb teeth is connected to the end of a long hand-held portion 1. With such a configuration, since the hand-held portion is in a state separated from the comb teeth, there is a problem that it is difficult for the user to appropriately apply the comb teeth to the target location on their own head.

[0006] The essential oil massage brush described in Patent Document 2 includes an upper case 1, a lower case 2, a support plate 3, and a comb-tooth member 4 that is detachably provided at the bottom of the support plate 3. When using the essential oil massage brush, the upper case 1 is held, and the bottom of the comb-tooth member 4 is brought close to the hair or scalp and moved slowly. However, since the comb-tooth member 4 cannot be oscillated with this essential oil massage brush, a sufficient massage effect may not be obtained.

[0007] Therefore, the present invention aims to provide a massage brush that is more convenient to use and can provide a good massage effect. [Means for solving the problem]

[0008] A massage brush according to one aspect of the present invention comprises a housing having an upper part having a gripping portion, a bottom part having a plurality of brush mounting portions arranged along its outer circumference, and an intermediate portion located between the upper part and the bottom part; brush portions having a plurality of brush bristles, each of which is arranged in the brush mounting portions; and a drive unit located inside the housing that synchronously swings the brush portions and drives the brush bristles to tilt toward the center of the bottom part. [Effects of the Invention]

[0009] According to one aspect of the present invention, it is possible to provide a massage brush that is more convenient to use and can provide a good massage effect. [Brief explanation of the drawing]

[0010] [Figure 1] This is a perspective view showing the appearance of a massage brush according to one embodiment. [Figure 2] Figure 1 is a perspective view showing the appearance of the bottom of the massage brush. [Figure 3] Figure 1 is a perspective view showing the massage brush with the brush body and mist unit disassembled. [Figure 4]It is a plan view showing the bottom of the brush body constituting the massage brush. [Figure 5] It is a perspective view showing the internal configuration of the brush body. [Figure 6] It is a schematic diagram showing the configuration of the drive unit provided inside the brush body. [Figure 7] It is a perspective view showing the configuration of the drive unit provided inside the brush body. [Figure 8] It is a perspective view showing the internal configuration of the brush set constituting the brush part of the brush body. [Figure 9] It is a perspective view showing the lower side of the brush set shown in FIG. 8. [Figure 10] It is a perspective view showing the interlocking ring included in the brush set shown in FIG. 8. [Figure 11] It is a perspective view showing the appearance of the mist unit constituting the massage brush. [Figure 12] It is a perspective view showing the bottom surface side of the mist unit shown in FIG. 11. [Figure 13] It is a perspective view showing the state in which the housing part and the lid part of the mist unit shown in FIG. 11 are disassembled. [Figure 14] It is a perspective view showing the internal configuration of the housing part of the mist unit. [Figure 15] It is a perspective view showing the internal configuration of the lid part of the mist unit.

Embodiments for Carrying Out the Invention

[0011] Hereinafter, each embodiment of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed descriptions thereof will not be repeated.

[0012] <First Embodiment> In this embodiment, the massage brush 1 as an example of the present invention will be described. The massage brush 1 has a brush body 2 and a mist unit 50 that is detachably attached to the brush body 2.

[0013] The massage brush 1 according to this embodiment is mainly used to improve the condition of the scalp and skin by applying stimulation by the swinging of the brush hairs 21 and stimulation by electromagnetic waves (for example, EMS, etc.) from the electrode protrusions 22 to the skin around the head such as the scalp and face. Further, the massage brush 1 according to this embodiment can perform massage while spraying a liquid having a beauty effect, a medicinal effect, or the like by the mist unit 50. The location that is intensively cared for using the massage brush 1 is called the treatment location.

[0014] (Overall configuration of the massage brush) First, the overall configuration of the massage brush 1 according to this embodiment will be described. FIGS. 1 to 3 show the appearance of the massage brush 1. FIG. 3 shows a state in which the mist unit 50 is removed from the brush body 2.

[0015] In this specification, for the purpose of explaining the shape and positional relationship of each component of the massage brush 1, for convenience, the massage brush 1 is defined by three coordinate axes in the X (X1 - X2) direction (left - right direction), Y (Y1 - Y2) direction (up - down direction), and Z (Z1 - Z2) direction (front - back direction) as shown in FIG. 1 and the like.

[0016] On an arbitrary side surface of the brush body 2 of the massage brush 1 according to this embodiment (specifically, the surface on the Z1 side of the upper part 10a), an operation button 15 is provided. Further, on the side surface of the brush body 2 opposite to the side surface where the operation button 15 is provided (specifically, the surface on the Z2 side of the middle part 10b), a power cord attachment part 3a to which the power cord 3 is connected is provided. Hereinafter, in the massage brush 1, the side where the operation button 15 is provided is taken as the front side of the massage brush 1, and the side where the power cord attachment part 3a is provided is taken as the back side of the massage brush 1.

[0017] The massage brush 1 mainly comprises a brush body 2, a power cord 3, and a mist unit 50. The power cord 3 is detachably connected to a power cord attachment part 3a located on the back side of the brush body 2. Power is supplied to the brush body 2 via the power cord 3.

[0018] The brush body 2 may contain either a primary or secondary battery. This allows the massage brush 1 to be used even when the power cord 3 is disconnected. If the brush body 2 has a secondary battery, the secondary battery can be charged via the power cord 3.

[0019] The mist unit 50 atomizes an aqueous liquid, such as a scalp serum or medicated solution, and sprays it onto the treatment area. The mist unit 50 is removably fitted into a mounting recess (specifically, a fitting portion 17) provided on the bottom 10c of the housing 10 of the brush body 2.

[0020] (Composition of the brush body) Next, we will describe the more specific configuration of the brush body 2. Figure 4 shows the configuration of the bottom 10c of the brush body 2. Figure 5 shows the state in which the base portion 23 has been removed from the bottom 10c of the brush body 2. Figures 6 and 7 show the configuration of the drive unit 14 provided inside the housing 10. Figures 8 and 9 show the internal configuration of the brush set 20a that constitutes the brush portion 12. Figure 10 shows the interlocking ring 43 provided in the brush set 20a.

[0021] The brush body 2 mainly comprises a housing 10, a brush section 12, and a drive unit 14.

[0022] The housing 10 mainly forms the outer shape of the brush body 2. The housing 10 has, in order from the top side (Y1 side), an upper section 10a, an intermediate section 10b, and a bottom section 10c. The upper section 10a has a gripping section 11 and an operation button 15. Inside the housing 10, there is a space for housing mechanical drive components, electronic components, batteries, etc.

[0023] The gripping portion 11 has a curved concave shape formed on both the left and right sides of the front side (Z1 side) of the upper portion 10a. This curved concave shape is formed by an ergonomic design that fits the user's hand. This prevents hand fatigue and muscle damage even when using the massage brush 1 for extended periods.

[0024] The operation button 15 is located approximately in the center (forward position) of the gripping part 11. The user of the massage brush 1 can start or stop the operation of the massage brush 1 by operating the operation button 15.

[0025] The intermediate section 10b is located between the upper section 10a and the bottom section 10c. The intermediate section 10b is connected to the upper section 10a by conventionally known fixing methods such as snap fastening or adhesive bonding.

[0026] The bottom portion 10c forms the lower part (Y2 side portion) of the housing 10. The bottom portion 10c is connected to the intermediate portion 10b, for example, by screw connections. On the lower surface of the housing 10 formed by the bottom portion 10c, a plurality of brush mounting portions 12a are arranged along the outer circumference of the bottom portion 10c.

[0027] In this embodiment, the lower surface of the bottom portion 10c has a curved, roughly triangular shape (see Figure 4). Three brush mounting portions 12a are provided along each side of the roughly triangular lower surface.

[0028] Each brush mounting section 12a is provided with a brush section 12 having multiple brush bristles 21. In this embodiment, the brush section 12 is composed of three brush sets 20a, 20b, and 20b, corresponding to the three brush mounting sections 12a. Each brush set 20a, 20b, and 20b has a similar configuration to the others.

[0029] Each brush set 20a, 20b, and 20b has multiple brush bristles 21 formed on it. The brush bristles 21 are made of an elastic resin material such as nylon.

[0030] In this embodiment, the brush bristles 21 include longer outer brush bristles 21a located on the outer circumference of the lower surface of the bottom 10c, and shorter inner brush bristles 21b located inside the outer brush bristles 21a.

[0031] The drive unit 14 is located inside the housing 10. The drive unit 14 synchronously oscillates the brush section 12, which consists of multiple brush sets, and drives the brush bristles 21 to tilt toward the center of the bottom 10c.

[0032] On the lower surface of the base 10c, in addition to the brush portion 12, multiple electrode protrusions 22 for guiding electric current are provided. The multiple electrode protrusions 22 are arranged in a line inside the brush mounting portion 12a on the lower surface of the base 10c.

[0033] The electrode projection 22 is formed of, for example, a conductive metal material. The electrode projection 22 may be configured to be extendable and retractable within a movable range of, for example, 4 to 5 mm. This allows it to accommodate differences in height on the scalp surface that may be treated.

[0034] The electrode protrusions 22 are signal-connected to the control board 31. When the massage brush 1 is used, it is preferable that a current is generated such that some of the electrode protrusions 22 have one polarity, and the remaining portion of the electrode protrusions 22 have the other polarity. In one example, five of the nine electrode protrusions 22 are positive electrodes and the remaining four are negative electrodes. As a result, when each electrode protrusion 22 comes into contact with a treatment area such as the scalp, a current is generated between the electrode protrusions of different polarities. The closer the distance between electrode protrusions of opposite polarities, the larger the current, and the farther away, the smaller the current. If the polarities of each electrode protrusion are different, a closed-circuit current is formed when they simultaneously come into contact with the treatment area.

[0035] The electrode projections 22 emit weak currents such as EMS and low-frequency electrical signals. Stimulation of the scalp by EMS is known to have an effect in improving AGA (androgenetic alopecia). In addition, stimulation of the skin by low-frequency electrical signals is known to have an immediate effect in improving skin quality. Therefore, by emitting these currents to the treatment area such as the scalp via the electrode projections 22, an improvement in AGA and skin quality in the treatment area can be expected.

[0036] It is preferable that a heating section is provided around the electrode projection 22 to heat the electrode projection 22. In this embodiment, a heating plate 24 is placed on the contact surface of the electrode projection 22 (see Figure 5). The heating plate 24 is preferably a graphene heating film. By providing a heating section to heat the electrode projection 22, a weak current such as EMS can be applied to the treatment area while the heated tip of the electrode projection 22 is in contact with the treatment area. As a result, the synergistic effect of EMS and heating can further improve the blood circulation promotion effect around the treatment area.

[0037] Furthermore, it is preferable that an LED light 26 is provided at the bottom 10c of the housing 10. The LED light 26 is preferably a red LED that emits red light. Red light is known to have effects mainly in the fields of beauty and hair growth, such as promoting collagen production, promoting blood circulation, improving skin firmness and luster through cell activation, improving wrinkles and sagging, and promoting hair growth.

[0038] In this embodiment, a base portion 23 having a shape that protrudes downward is provided on the lower surface of the bottom portion 10c. The base portion 23 is provided inside each brush mounting portion 12a, that is, in the center of the lower surface of the bottom portion 10c.

[0039] The electrode protrusions 22 are provided to protrude from a flat surface located on the lower side (Y2 side) of the base portion 23. This flat surface is roughly triangular in shape to match the shape of the lower surface of the bottom portion 10c. Multiple electrode protrusions 22 (for example, 9) are arranged in a row along the inner circumference of this annular flat surface.

[0040] Furthermore, a recess is formed on the inner side of the annular flat surface of the base portion 23, with the recessed side facing upward (towards Y1). This recess serves as a fitting portion 17 into which the mist unit 50 is fitted. A power connector 18, which is connected to the power supply portion 55 of the mist unit 50, is provided on the upper surface of the fitting portion 17.

[0041] As shown in Figure 5, the heating plate 24 and LED lights 26 are arranged inside the base portion 23. The electrode protrusions 22 are positioned on the heating plate 24. This allows heat from the heating plate 24 to be transferred to the electrode protrusions 22. Multiple LED lights 26 are positioned between each electrode protrusion 22 on the heating plate 24. The base portion 23 is preferably made of a translucent resin material, for example. This allows light from the LED lights 26 positioned inside the base portion 23 to be emitted to the outside.

[0042] (Regarding the oscillating motion of the brush section by the drive unit) Next, we will explain the oscillating drive mechanism that uses the drive unit 14 to oscillate each brush set in sync.

[0043] The brush body 2 of this embodiment has three sets of brushes 20a, 20b, and 20c evenly arranged along the outer circumference of the base 10c. Each brush set 20a, 20b, and 20c is driven by the drive unit 14 and operates to tilt below the base 10c toward the center of the base 10c (i.e., toward the electrode projection 22). As a result, when the massage brush 1 is operated, the bristles 21 of each brush set can perform an action as if grasping the treatment area with hands.

[0044] The drive unit 14 includes a mounting base 30, a control board 31, a drive motor 32, and a plurality of gears and gear-related parts (see Figure 6). The mounting base 30 is located above the bottom 10c inside the housing 10. The various components constituting the drive unit 14 are arranged on the mounting base 30.

[0045] The control board 31 controls the operation of the drive motor 32, the heating state of the heating plate 24, the illumination state of the LED light 26, and the operating state of the electrode protrusions 22. For example, when the user presses the operation button 15, the control board 31 starts the operation of the drive motor 32. The drive motor 32 is connected to a worm gear 33 and drives each gear.

[0046] Multiple gears and gear-related components include a worm gear 33, a worm wheel 34, a first transmission gear 35, a second transmission gear 36, a third transmission gear 37, a fourth transmission gear 38, multiple (e.g., three to match the number of brush sets) fifth transmission gears 39, multiple (e.g., three to match the number of brush sets) eccentric cams 41, multiple (e.g., three to match the number of brush sets) oscillating arms 42, and multiple (e.g., three to match the number of brush sets) interlocking rings 43.

[0047] The output shaft of the drive motor 32 is coaxially connected to the worm gear 33. The worm gear 33 meshes with the worm wheel 34, and the worm wheel 34 is coaxially fixed to the first transmission gear 35 and rotates synchronously. The first transmission gear 35 meshes with the second transmission gear 36, and the second transmission gear 36 is coaxially fixed to the third transmission gear 37 and rotates synchronously. The third transmission gear 37 meshes with the fourth transmission gear 38.

[0048] Multiple fifth transmission gears 39 are arranged circumferentially around the fourth transmission gear 38 and mesh with each other. Each fifth transmission gear 39 is linked one-to-one with a corresponding eccentric cam 41. Each eccentric cam 41 drives a corresponding oscillating arm 42.

[0049] Each oscillating arm 42 is connected to the brush mounting portion 12a of each brush set 20a, 20b, and 20c, which are the base portions of the brush bristles 21. The ends of the oscillating arms 42 are rotatably supported by opposing oscillating bearings 44. A protruding pin 45 is formed in the middle portion of the oscillating arm 42. An interlocking ring 43 is positioned corresponding to the protruding pin 45. The interlocking ring 43 has a double annular structure including an outer large-diameter ring 43a and an inner small-diameter ring 43b (see Figure 10).

[0050] The protruding pin 45 is inserted and fitted into the inner small-diameter ring 43b, and the outer diameter of the eccentric cam 41 fits into the inner diameter of the outer large-diameter ring 43a. As a result, the rotational motion of the eccentric cam 41 is converted into the reciprocating motion of the oscillating arm 42 via the interlocking ring 43, as shown by the double arrow in Figure 8. By performing the reciprocating motion of the oscillating arm 42, each brush bristle 21 extending downward from the brush mounting section 12a oscillates back and forth as shown by the double arrow in Figure 8.

[0051] The massage brush 1 of this embodiment has three brush sets. When the drive motor 32 is operated, the three brush sets 20a, 20b, and 20c oscillate back and forth in sync as described above. As a result, when the tip of the brush bristles 21 comes into contact with the treatment area, an effect equivalent to massaging the treatment area by hand can be obtained.

[0052] Although this embodiment describes a configuration having three brush sets, the number of brush sets is not limited to three.

[0053] (Mist unit configuration) Next, we will describe the more specific configuration of the mist unit 50. Figures 11 and 12 show the external appearance of the mist unit 50. Figure 13 shows the mist unit 50 with the lid 54 removed from the mist housing 51 (hereinafter also simply referred to as the housing 51). Figure 14 shows the internal configuration of the housing 51. Figure 15 shows the internal configuration of the lid 54.

[0054] The mist unit 50 contains an aqueous liquid and atomizes (mistes) this liquid before releasing it. The liquid contained in the mist unit 50 is, for example, a water-soluble liquid containing active ingredients that have cosmetic or medicinal effects. The mist unit 50 can perform scalp care by spraying such an aqueous liquid onto the treatment area using a principle similar to that of an ultrasonic humidifier, thereby stimulating the scalp and other areas being treated.

[0055] The mist unit 50 has a mist housing (main body) 51 and a lid 54. The housing 51 has a liquid storage section 52 for storing liquid inside. The housing 51 is mainly formed by a top surface 51a, a bottom surface 51b, and side surfaces 51c.

[0056] As described above, the mist unit 50 is fitted into the fitting portion 17 formed on the bottom 10c of the brush body 2. Therefore, the outer shape of the housing portion 51 is shaped to match the shape of the fitting portion 17. In this embodiment, the outer shape of the housing portion 51 is approximately a triangular prism.

[0057] A lid 54 for opening and closing the liquid storage section 52 is attached to the upper surface 51a of the housing section 51. A spray nozzle 53 for releasing atomized liquid is provided on the bottom surface 51b of the housing section 51.

[0058] In the liquid storage section 52 within the housing section 51, an atomizing plate 61 is positioned at a location corresponding to the spray nozzle 53 (i.e., on the bottom surface 51b) (see Figure 14). The atomizing plate 61 atomizes the liquid in the liquid storage section 52 and releases it from the spray nozzle 53.

[0059] The upper surface 51a of the housing 51 is provided with an inlet 58 into which liquid is injected and an exhaust hole 59. By providing the exhaust hole 59, even when the sealing member 65 of the lid 54 is attached to the inlet 58, excess gas in the liquid storage section 52 can be discharged, and the pressure balance inside and outside the liquid storage section can be maintained.

[0060] The atomizing plate 61 is formed, for example, from a piezoelectric vibrator. The vibration frequency of the atomizing plate 61 can be set to a frequency in the ultrasonic band (for example, 110-165 kHz). By applying a voltage of a predetermined frequency to the atomizing plate 61, the atomizing plate 61 vibrates at a high frequency. This periodically compresses and releases the liquid in the liquid reservoir 52 within the micropores of the plate, and ultimately decomposes it into tiny mist droplets (for example, with a diameter of approximately 3-8 μm) by utilizing the instability of surface tension. As a result, the beauty serum or medicinal liquid in the liquid reservoir 52 can be sprayed as a fine mist from the spray nozzle 53 onto the treatment area, such as the hair or scalp.

[0061] The housing 51 is provided with a power supply unit 55 that supplies electricity to the atomizing plate 61. The power supply unit 55 extends from the top surface 51a of the housing 51, through the side surface 51c of the housing 51, to the atomizing plate 61 in the liquid reservoir 52. A power connector 18, provided on the fitting portion 17 of the brush body 2, is connected to the power supply unit 55 located on the top surface 51a.

[0062] As a result, electricity is supplied from the power source on the brush body 2 (e.g., a battery) to the atomizing plate 61 via the power supply unit 55 on the mist unit 50. In addition, an electrical signal is transmitted from the control board 31 of the brush body 2 to the atomizing plate 61. The user can start and stop the operation of the atomizing plate 61 by operating the operation button 15 on the brush body 2.

[0063] Multiple liquid discharge protrusions (projections) 71 are provided on the bottom surface 51b of the housing 51, protruding downwards. The multiple liquid discharge protrusions 71 are arranged to surround the spray nozzle 53, which is located approximately in the center of the bottom surface 51b.

[0064] Each dispensing projection 71 has a liquid passage 72 inside. A dispensing control ball (dispensing part) 73 is provided at the tip (lower end) of each dispensing projection 71. One end (upper end) of the liquid passage 72 is in communication with the liquid storage part 52 (see Figure 14). The other end (lower end) of the liquid passage 72 is connected to the dispensing control ball 73. As a result, liquid is released from the dispensing control ball 73 located at the tip of the dispensing projection 71. A detailed explanation of the configuration of the dispensing control ball 73 is omitted as conventionally known techniques can be applied.

[0065] The liquid reservoir 52 is provided with a positioning ring (positioning part) 63 for fixing the atomizing plate 61 and an absorbent cotton swab (absorbent part) 62. The atomizing plate 61 is fixed to the bottom of the liquid reservoir 52 by the positioning ring 63. The absorbent cotton swab 62 is positioned in contact with the atomizing plate 61 and absorbs the liquid in the liquid reservoir 52. By applying a voltage to the atomizing plate 61 while the absorbent cotton swab 62, which has absorbed the liquid, is in contact with the atomizing plate 61, the mist generated from the atomizing plate 61 can be made uniform. In addition, the presence of the absorbent cotton swab 62 allows for the efficient use of the small amount of liquid remaining in the liquid reservoir 52.

[0066] A magnetic member 57 is provided around the inlet 58. The magnetic member 57 magnetically attracts a magnetic member (not shown) provided on the fitting portion 17 of the brush body 2. This allows the mist unit 50 to be attracted to the brush body 2, making it less likely for the mist unit 50 to fall off when the massage brush 1 is in use.

[0067] The area around the inlet 58 is preferably made of an elastic material (for example, a rubber sealing member). It is also preferable that an elastic sealing member 65 is provided on the inside of the lid 54. This improves the airtightness when the inlet 58 is closed with the lid 54.

[0068] Furthermore, it is preferable that a flap-shaped elastic projection 66 is provided on the inside of the lid portion 54 (specifically, below the sealing member 65). The flap-shaped elastic projection 66 is formed of an elastic material such as silicone or rubber. When the lid portion 54 is attached to the housing portion 51, the flap-shaped elastic projection 66 is positioned so as to contact the absorbent cotton swab 62, thereby fixing the absorbent cotton swab 62 in place.

[0069] The flap-shaped elastic projection 66 prevents the absorbent cotton swab 62 from falling off the positioning ring 63 even if the mist unit 50 or the massage brush 1 with the mist unit 50 attached is inverted or turned upside down during use. Furthermore, the elastic force of the flap-shaped elastic projection 66 ensures sufficient contact between the absorbent cotton swab 62 and the atomizing plate 61 without affecting the vibration of the atomizing plate 61.

[0070] Furthermore, it is preferable that a pull-out handle 56 is provided on the bottom surface 51b of the housing portion 51. This makes it easier to remove and replace the mist unit 50 fitted into the fitting portion 17 of the brush body 2.

[0071] In this embodiment, the case in which the mist unit 50 is attached to the brush body 2 is mainly described, but the mist unit 50 can also be used on its own. That is, the mist unit 50 may be used alone on the treatment area such as the scalp. In this case, the mist unit 50 is moved on the surface of the treatment area, such as the scalp, while the liquid dispensing control ball 73 at the tip of the liquid dispensing projection 71 is brought into contact with the treatment area. This allows the liquid inside to be applied to the treatment area from the liquid dispensing control ball 73 while stimulating the treatment area with the liquid dispensing projection 71.

[0072] As described above, the mist unit 50 according to this embodiment has an atomizing plate 61 placed inside a liquid storage section 52. This makes the structure of the mist unit 50 compact.

[0073] Furthermore, the mist unit 50 and the brush body 2 employ an embedded magnetic adsorption structure. This allows for easy attachment and replacement of the mist unit 50 to the brush body 2. Consequently, a malfunction of a component on the mist unit 50 side, such as the atomizing plate 61, eliminates the need to replace or repair the entire massage brush 1. For example, this can be addressed by preparing multiple spare mist units 50, thereby improving the convenience of the device.

[0074] (Specific examples of dimensions and operation) The following describes the more specific dimensions and operation examples of the massage brush 1 of this embodiment.

[0075] In a more specific example of the oscillating motion of the brush portion 12 in the massage brush 1, the maximum height difference of the tips of the brush bristles 21 may be 3.0 mm or less, and preferably 2.3 mm or less. Also, the extension and retraction amount of the electrode projection 22 may be 3.0 mm or more and 5.0 mm or less, and preferably about 4.0 mm. Furthermore, the length of the liquid discharge projection 71 of the mist unit 50 is preferably designed to conform to the curved shape of the surface of the area to be treated (e.g., scalp, face, etc.).

[0076] Furthermore, it is preferable that the oscillation angle of the brush bristles 21 be 40 ± 10 degrees (i.e., 20 ± 5 degrees on one side). This allows each brush set to operate in a way that allows it to grip the treatment area, such as the scalp, more firmly.

[0077] For example, by setting the oscillation angle of the brush bristles 21 to 40 degrees (20 degrees inward, 20 degrees outward) and making the height difference (length difference) between the outer brush bristles 21a and the inner brush bristles 21b approximately 1 mm, the entire brush surface can be made into an arc shape that conforms to the curvature of the head. As a result, all the brush bristles from the crown to the sides of the head make uniform contact with the scalp simultaneously, providing a stable and comfortable massage effect without causing lifting or pushing. This makes it possible to achieve a sense of closeness and uniformity of stimulation that could not be obtained with conventional flat hairbrushes.

[0078] Furthermore, the current output from the electrode projection 22 can be, for example, a medium-to-low frequency bidirectional pulsed current of 1 to 2500 Hz (specifically, a fixed frequency of 1250 Hz). This frequency is one that the human body may mistakenly perceive as a nerve signal, potentially triggering a contraction response. Therefore, when an electrical signal of this current value is delivered from the electrode projection 22 to a treatment area such as the scalp, it is expected to assist in scalp muscle movement, enhance scalp metabolism, and promote the activation of scalp cells.

[0079] In one example, the EMS output from the electrode protrusion 22 can have a frequency of 1250 Hz, 5 pulses, and an interval period of 100 ms (i.e., 5 pulse periods, each period of 0.8 ms, and a total duration of 4 ms). The area covered by the multiple electrode protrusions 22 (9 electrode protrusions 22 in this embodiment) is 1000 mm². 2 It is preferable to proceed as described above. This will further improve the effects of the EMS microcurrent.

[0080] (Summary of the embodiments) As described above, the massage brush 1 according to this embodiment comprises a housing 10, a brush section 12, and a drive unit 14. The housing 10 has an upper section 10a having a gripping section 11, a bottom section 10c having a plurality of brush mounting sections 12a arranged along its outer circumference, and an intermediate section 10b located between the upper section 10a and the bottom section 10c. The brush section 12 is arranged on the brush mounting sections 12a of the bottom section 10c and has a plurality of brush bristles 21. The drive unit 14 is located inside the housing 10 and synchronously swings the brush section 12 (specifically, each brush set arranged on the plurality of brush mounting sections 12a), driving the brush bristles 21 to tilt toward the center of the bottom section 10c.

[0081] With the above configuration, the user can hold the upper part of the casing and apply the brush bristles located at the bottom of the casing to the treatment area, such as the user's head, and perform a massage by oscillating the brush. Therefore, the usability when using the massage brush at a close distance to the treatment area can be further improved.

[0082] Furthermore, by driving the bristles, which are located in multiple brush mounting sections, to tilt toward the center of the base, the bristles can perform a motion as if they were gripping the treatment area with their hands.

[0083] Furthermore, the massage brush 1 of this embodiment has a fitting portion 17 in the bottom portion 10c of the housing 10 into which the mist unit is fitted, and the mist unit 50 may be detachably attached to this fitting portion 17.

[0084] According to the above configuration, a massage brush is obtained that combines a massage function using brush bristles 21 with a spray function for beauty serums or medicinal liquids using a mist unit 50.

[0085] Furthermore, the massage brush 1 of this embodiment may also be equipped with a heating plate 24, electrode protrusions 22, and an LED light 26. This allows for the addition of various functions to the massage brush 1.

[0086] As described above, this embodiment provides a massage brush that is easy to use and provides a good massage effect. Furthermore, it provides a massage brush that is compact in structure and high performance.

[0087] <Second Embodiment> Next, a second embodiment will be described. The massage brush according to the second embodiment differs from that of the first embodiment in the following respects.

[0088] In other words, the massage brush according to the second embodiment does not include at least one of the heating plate 24, electrode protrusions 22, and LED light 26. This allows it to be used for different purposes than the massage brush 1 of the first embodiment.

[0089] For configurations other than those described above, the same configuration as in the first embodiment can be applied.

[0090] <Third Embodiment> Next, a third embodiment will be described. The massage brush according to the third embodiment differs from that of the first embodiment in the following respects.

[0091] In other words, the massage brush according to the third embodiment employs a conventionally known oscillating drive mechanism instead of the drive unit 14. This allows it to be applied to different uses than the massage brush 1 of the first embodiment.

[0092] For configurations other than those described above, the same configuration as in the first embodiment can be applied.

[0093] (summary) As described above, a massage brush according to one aspect of the present invention (for example, massage brush 1) comprises a housing (for example, housing 10) having an upper part (for example, upper part 10a) having a gripping part (for example, gripping part 11), a bottom part (for example, bottom part 10c) having a plurality of brush mounting parts (for example, brush mounting parts 12a) arranged along the outer circumference, and an intermediate part (for example, intermediate part 10b) located between the upper part and the bottom part; a brush part (for example, brush part 12) having a plurality of brush bristles (for example, brush bristles 21) arranged in each of the brush mounting parts; and a drive unit (for example, drive unit 14) disposed inside the housing and driving the brush part to oscillate synchronously and tilt the brush bristles toward the center of the bottom part.

[0094] A massage brush according to one aspect of the present invention (for example, massage brush 1) may further comprise a plurality of electrode protrusions (for example, electrode protrusions 22) arranged in a line inside the brush mounting portion (for example, brush mounting portion 12a) at the bottom portion (for example, bottom portion 10c) of the housing (for example, housing 10) for guiding an electric current.

[0095] In a massage brush according to one aspect of the present invention (for example, massage brush 1), a heating portion (for example, heating plate 24) may be provided around the electrode projection (for example, electrode projection 22) at the bottom portion (for example, bottom portion 10c) of the housing (for example, housing 10).

[0096] In a massage brush according to one aspect of the present invention (for example, massage brush 1), an LED light (for example, LED light 26) may be provided on the bottom (for example, bottom 10c) of the housing (for example, housing 10).

[0097] In a massage brush according to one aspect of the present invention (for example, massage brush 1), the bottom portion (for example, bottom portion 10c) of the housing (for example, housing 10) may be provided with a mounting recess (for example, mounting portion 17) into which a mist unit (for example, mist unit 50) that atomizes an aqueous liquid and releases it onto the treatment area is fitted.

[0098] A massage brush according to one aspect of the present invention (for example, massage brush 1) may further include the mist unit (for example, mist unit 50) which is detachably attached to the mounting recess (for example, fitting portion 17).

[0099] The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the invention is indicated by the claims rather than by the foregoing description, and all modifications within the meaning and scope of the claims are intended to be included. Configurations obtained by combining the configurations of the different embodiments described herein are also included in the scope of the invention. [Explanation of symbols]

[0100] 1: Massage brush 2: Brush body 3: Power cord 3a: Power cord mounting section 10: Cabinet 10a: Upper part 10b: Middle part 10c: bottom 11: Grip part 12: Brush part 12a: Brush installation section 14: Drive unit 15: Operation buttons 17: Fitting part (mounting recess) 18: Power connector 20a: Brush Set 20b: Brush Set 20c: Brush Set 21: Brush bristles 21a: Outer brush bristles 21b: Inner brush bristles 22: Electrode protrusion 23: Base 24: Heating plate (heating part) 26: LED Lights 30: Mounting base 31: Control board 32: Drive motor 33: Worm Gear 34: Worm wheel 35: First transmission gear 36: Second transmission gear 37: Third transmission gear 38: Fourth transmission gear 39: Fifth transmission gear 41: Eccentric cam 42: Swivel Arm 43: Interlocking ring 43a: Outer large diameter ring 43b: Inner small diameter ring 44: Oscillating bearing 45: Protruding pin 50: Mist Unit 51: Mist casing (main unit) 51a: Top surface (of the main body) 51b: Bottom part (of the main body) 51c: Side section (of the main body) 52:Liquid storage part 53: Spray nozzle 54: Lid 55: Power supply unit 56: Drawer handle 57: Magnetic material 58: Inlet 59: Exhaust vent 61: Atomizing plate 62: Absorbent cotton swab (absorbent part) 63: Positioning ring (positioning part) 65: Sealing material 66: Flap-shaped elastic projection 71 :Draining protrusion (protrusion) 72:Liquid passage 73: Liquid discharge control ball (liquid discharge section)

Claims

1. An upper part having a gripping portion, A bottom section having multiple brush mounting sections arranged along the outer circumference, The intermediate portion located between the upper portion and the bottom portion A housing having, A brush section having multiple brush sets, each of which is arranged in the brush mounting section and each has multiple brush bristles, A drive unit is disposed within the housing and drives the multiple brush sets to oscillate synchronously, causing the brush bristles to tilt toward the center of the bottom. A massage brush equipped with [features / equipment].

2. The drive unit is The drive motor and Each of the aforementioned multiple brush sets is provided with an eccentric cam that is rotated by the drive motor, Each of the aforementioned multiple brush sets is provided with a swing arm that is driven by the eccentric cam and Includes, The rotational motion of the drive motor is converted into the oscillating motion of the oscillating arm by the eccentric cam. The massage brush according to claim 1.

3. The brush set includes longer outer bristles located on the outer circumference of the bottom and shorter inner bristles located inside the outer bristles, The massage brush according to claim 1.

4. The housing further comprises a plurality of electrode protrusions arranged side by side inside the brush mounting portion at the bottom of the housing for guiding current, The massage brush according to claim 1.

5. The bottom of the housing is provided with a heating section around the electrode projection, The massage brush according to claim 4.

6. An LED light is provided at the bottom of the housing. The massage brush according to claim 1.

7. The bottom of the housing is provided with a mounting recess into which a mist unit that atomizes an aqueous liquid and releases it onto the treatment area is fitted. A massage brush according to any one of claims 1 to 6.

8. The mist unit is further detachably attached to the mounting recess, The massage brush according to claim 7.

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