CN115554114A - Scalp care device - Google Patents

Abstract

The invention provides a scalp care device. The scalp care device of the embodiment is provided with a cover (21) comprising: a cover main body (211) formed in a cylindrical shape; and a fastened component (2122) which is disposed so as to cover the opening of the cover main body (211) and is fastened. The cover (21) is provided with a compressed component (2141) which is compressed between the cover main body (211) and the component (2122) to be fastened and seals between the cover main body (211) and the component (2122) to be fastened. The compressed component (2141) has a1 st sealing portion (2141 a) that seals a gap between the inner surface of the housing main body (211) and the fastened component (2122). The compressed component (2141) has a2 nd sealing portion (2142) that seals a fastening portion between the housing main body (211) and the fastened component (2122). The 1 st sealing part (2141 a) and the 2 nd sealing part (2142) are formed integrally.

Description

Scalp care device

Technical Field

The present invention relates to a scalp care device.

Background

Conventionally, as a scalp care apparatus, for example, a scalp care apparatus including the following parts is known as disclosed in patent document 1: a device main body that houses a drive source; and an operation head having an operation member operated by driving of the driving source.

In the scalp care device of patent document 1, O-rings are provided at fastening portions between the cover main body and the fastened members, respectively, so that a waterproof structure is configured to prevent water from entering the cover main body.

Documents of the prior art

Patent literature

Patent document 1: japanese laid-open patent publication No. 2012-61174

Disclosure of Invention

In such a scalp care apparatus, the sealing member needs to be attached to all the fastening portions of the cover main body, and there is a possibility that a waterproofing failure due to forgetfulness of attachment or mounting variation of the sealing member occurs.

The invention provides a scalp care device which can restrain poor waterproof caused by forgetting of installation or installation deviation of a sealing component at a fastening part between a cover main body and a fastened part.

A scalp care device according to an aspect of the present invention includes: a main body having a housing for housing a drive source and a power source; and a surgical unit which is detachably attached to the main body so as to be replaceable. The housing has: a cover main body formed in a cylindrical shape; a fastened member that is disposed and fastened so as to cover the opening of the cover main body; and a compressed component that is compressed between the cover main body and the fastened component to seal between the cover main body and the fastened component. The compressed component has: a1 st seal portion that seals a gap between an inner surface of the housing main body and a component to be fastened; and a2 nd sealing part which seals the fastening part between the cover main body and the fastened component. The 1 st seal portion is formed integrally with the 2 nd seal portion.

A scalp care device according to an aspect of the present invention can suppress occurrence of poor waterproofing at a fastening portion between a cover main body and a component to be fastened due to mounting forgetting or mounting variation of a sealing member.

Drawings

Fig. 1 is a perspective view, seen from one direction, showing the structure of a scalp care apparatus in which the 1 st surgical unit is attached to a main body portion.

Fig. 2 is a perspective view of the scalp care apparatus with the 1 st surgical unit attached to the main body section, viewed from another direction.

Fig. 3 is a perspective view of the scalp care apparatus in which the 2 nd surgical unit is attached to the main body section, as viewed from one direction.

Fig. 4 is a perspective view of the scalp care apparatus in which the 2 nd surgical unit is attached to the main body section, as viewed from another direction.

Fig. 5 is an exploded perspective view showing the structure of the main body.

Fig. 6 is a plan view showing the structure of the main body.

Fig. 7 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A showing the structure of the main body of fig. 6.

Fig. 8 is an enlarged view showing the structure of the portion B of fig. 7.

Fig. 9 is an enlarged view showing the structure of the portion C of fig. 7.

Fig. 10 is a D-D sectional view showing the structure of the body portion of fig. 6.

Fig. 11 is an enlarged view showing the structure of the section E in fig. 10.

Fig. 12 is a perspective view showing the structure of the body cover, as viewed from the inside.

Fig. 13 is a perspective view showing a structure of an upper sealing member alone integrally formed with a body cover.

Fig. 14 is a perspective view from the inside showing the structure of the bottom plate.

Fig. 15 is a perspective view showing a structure of a lower sealing member alone integrally formed with a bottom plate.

Fig. 16 is a plan view showing the structure of the main body to which the 1 st surgical unit is attached.

Fig. 17 is a sectional view taken along line F-F showing the structure of the main body of fig. 16.

Fig. 18 is an enlarged view showing the structure of the portion G in fig. 17.

Fig. 19 is an enlarged view showing the structure of the H portion of fig. 17.

Fig. 20 is a side view showing a state where the coupling is detached from the relay gear.

Fig. 21 is a view showing the structure of the coupling of fig. 20, as viewed in the direction of line I.

Fig. 22 is a view showing the structure of the relay gear of fig. 20, as viewed in the J-line direction.

Fig. 23 is a side view showing a state where the output shaft of the main-body-side gear mechanism is detached from the coupling.

Fig. 24 is a view showing the structure of the coupling of fig. 23, as viewed in the K-line direction.

Fig. 25 is a sectional view showing a body part of a modification of the lower seal member.

Fig. 26 is an enlarged view showing the structure of the L portion of fig. 25.

Fig. 27 is a cross-sectional view corresponding to the M-M cross-section of fig. 16, which is shown by separating the structure of the scalp care apparatus.

Fig. 28 is an enlarged view showing a part of the structure of fig. 27.

Fig. 29 is an M-M sectional view showing the structure of a main body to which the 1 st surgical unit of fig. 16 is attached.

Fig. 30 is an enlarged view showing a part of the structure of fig. 29.

Fig. 31 is a perspective view showing the movable contact and the fixed contact of the connection detection switch.

Fig. 32 is a diagram showing a modification of the detection mechanism.

Fig. 33 is a table showing combinations of detection modes of the probe mechanism according to the modified example.

Fig. 34 is a diagram showing an example of the detection mode of the probe mechanism according to the modification.

Fig. 35 is a diagram showing an example of the detection mode of the probe mechanism of the modification.

Fig. 36 is a diagram showing an example of the detection mode of the probe mechanism of the modification.

Fig. 37 is a diagram showing an example of the detection mode of the probe mechanism of the modification.

Fig. 38 is a diagram showing an example of the detection mode of the probe mechanism according to the modification.

Fig. 39 is a diagram showing an example of the detection mode of the probe mechanism according to the modification.

Fig. 40 is a perspective view showing the structure of the 1 st surgical unit, viewed from one direction.

FIG. 41 is a perspective view from another direction showing the structure of the 1 st surgical unit.

Fig. 42 is an exploded view showing the structure of the 1 st surgical unit.

Fig. 43 is a perspective view seen from one direction showing the structure of the 1 st component of the 1 st surgical unit.

Fig. 44 is a perspective view of the 1 st component of the 1 st surgical unit, viewed from another direction.

Fig. 45 is a perspective view of the component 2 of the 1 st surgical unit as viewed from one direction.

FIG. 46 is a cross-sectional view taken along line N-N showing the structure of the 2 nd component of the 1 st surgical unit of FIG. 45.

FIG. 47 is a plan view showing the structure of the 1 st surgical unit.

FIG. 48 is an O-O sectional view showing the structure of the 1 st surgical unit of FIG. 47.

Fig. 49 is a sectional view corresponding to the O-O section of fig. 47, showing a state where a load in a predetermined range is applied to the surgical projection.

FIG. 50 is a cross-sectional view corresponding to the O-O cross-section of FIG. 47, showing a state where a load of a predetermined value or more is applied to the surgical projection.

Fig. 51 is a sectional view showing a state where the rotating base is detached from the operation member base.

Fig. 52 is another sectional view showing a state where the rotating base is detached from the operation member base.

Fig. 53 is a sectional view showing a state in which a rotating base is attached to a surgical member base.

FIG. 54 is a perspective view from one direction showing the structure of the 2 nd surgical unit.

Fig. 55 is a perspective view showing the structure of the 2 nd surgical unit, viewed from another direction.

Fig. 56 is an exploded view showing the structure of the 2 nd surgical unit.

FIG. 57 is a plan view showing the structure of the 2 nd surgical unit.

Fig. 58 is a P-P sectional view showing the structure of the 2 nd surgical unit of fig. 57.

FIG. 59 is a Q-Q sectional view showing the structure of the 2 nd surgical unit of FIG. 57.

Fig. 60 is a cross-sectional view corresponding to the P-P cross-section of fig. 57, showing a state where a load of a predetermined value or more is applied to the surgical projection.

FIG. 61 is a cross-sectional view corresponding to the cross-section Q-Q of FIG. 57, showing a state where a load of a predetermined value or more is applied to the surgical projection.

Fig. 62 is a perspective view showing a state where the 1 st surgical unit is mounted on the 1 st mounting table.

FIG. 63 is a side view showing a state where the 1 st surgical unit and the 1 st mounting table are separated.

Fig. 64 is a perspective view showing a state where the 2 nd surgical unit is mounted on the 2 nd mounting table.

FIG. 65 is a side view showing a state where the 2 nd surgical unit and the 2 nd mounting table are separated.

Fig. 66 is a side view showing a state in which a2 nd mounting table on which a2 nd surgical unit is mounted is disposed, and a1 st mounting table on which a1 st surgical unit is mounted is disposed on the 2 nd mounting table.

Fig. 67 is a side view showing a state where a1 st mounting table on which a1 st surgical unit is mounted is disposed and a2 nd mounting table on which a2 nd surgical unit is mounted is disposed on the 1 st mounting table.

Fig. 68 is a perspective view showing a state in which a2 nd mounting table on which a2 nd surgical unit is mounted is disposed, and a1 st mounting table on which a1 st surgical unit coupled to a main body portion is mounted is disposed on the 2 nd mounting table.

Fig. 69 is a perspective view of the scalp care apparatus shown in fig. 68, viewed from another direction.

Description of the reference numerals

10. A scalp care device; 20. a main body part; 20a, a holding part; 21. a housing (casing); 22. a control circuit; 23. a motor base; 24. a main body side gear mechanism; 25. a packing for an output shaft; 26. a main body side drive transmission section; 27. coupling press plates (other structures); 28. hooking; 29. a detection mechanism; 30. the 1 st operation unit (operation unit); 31. fitting 1 (head, fitting); 32. item 2 (surgical site, item); 33. 1 st operation member (operation member); 35. 1 st operation unit side gear mechanism; 40. the 2 nd operation unit (operation unit); 41. fitting 1 (head, fitting); 42. item 2 (surgical site, item); 43. the 2 nd operation member (operation member); 45. the 2 nd operation unit side gear mechanism; 46. a guide rail; 47. a sliding base; 60. a1 st stage (mounting table); 70. a2 nd mounting table (mounting table); 211. a cylindrical wall portion (cover main body); 212. an upper cover portion; 213. a base plate (fastened component); 214. the main body cover fastening screw; 215. a bottom plate fastening screw; 216. fastening screws of the coupler pressing plate; 217. a lower sealing member (compressed component); 217A, a lower sealing member (compressed component); 218. a main body side sealing member; 221. a pad for an operation switch; 222. operating a switch button; 223. a power supply terminal; 224. an O-shaped ring; 231. fastening screws for the motor base; 232. a storage battery (power supply); 233. a connection detection switch (detection means); 234. a switch button; 235. electric motors (motors, drive sources); 241. a pinion gear; 242. a1 st gear; 243. a2 nd gear; 244. a3 rd gear; 245. an output gear; 246. an output shaft; 247. a bearing; 261. a coupling; 281. a force application spring; 310. 1, a first shell; 311. an accessory housing; 311h, a water filling port (water supply and drainage port) for cleaning; 312. an accessory mount; 312a, a through hole; 312h, a cleaning drain port (water supply and drain port); 321. a rubber cover; 322. a2 nd housing; 322h, a water supply and drainage port; 323. an operative member base (attached component); 331. a base; 331a, top (lower) surface; 332. performing a surgical process; 341. a push rod; 342. a force application spring; 343. a detected protrusion; 351. a relay gear; 352. 1 st operation unit side drive transmission part; 353. a drive transmission gear; 354. an output gear; 355. a rotary base (connecting component); 372. a flange portion; 410. 1, a first shell; 411. an accessory housing; 412. an accessory mount; 421. a rubber cover; 422. a2 nd housing; 423. an operative member base (attached component); 431. a base; 431a, top (lower) surface; 432. performing a surgical process; 441. a push rod; 442. a force application spring; 451. a relay gear; 452. a2 nd operation unit side drive transmission part; 453. a drive transmission gear; 454. an output gear; 455. a rotary base (connecting parts); 461. a rail portion; 462. a mounting rib; 471. a main body portion; 472. a flange portion; 2121. an operation panel; 2121a, through hole; 2122. a body cover (fastened parts); 2122a, through hole; 2131. a battery housing recess; 2132. a hook receiving portion; 2134. an output shaft insertion hole; 2141. an upper sealing member (compressed component); 2141a, no. 1 sealing part; 2142. a2 nd seal part; 2143. a connecting portion; 2171. the 1 st sealing part; 2172. a2 nd seal part; 2173. a connecting portion; 2174. a tongue portion; 2331. a movable side contact; 2331a, movable side contact surface; 2332. a fixed side contact; 2332a, stationary side contact surface; 2351. a motor main body; 2352. a motor shaft; 2421. a1 st axis; 2431. a2 nd axis; 2441. a3 rd axis; 2461. a shaft-side flat surface (shaft-side D cut surface); 2611. a main body portion; 2611a, a front end face; 2612. a flange portion; 2613. an outer surface; 2614. a circular arc portion; 2615. an inner flat surface (inner D-cut surface); 2615a, air discharge portion (groove portion); 3111. a peripheral wall; 3112. a top wall; 3112a, a top surface; 3112b, through holes; 3112c, hook insertion recesses; 3112d, an engaging portion; 3112e, through holes; 3121. an accessory mount fastening screw; 3211. a protrusion portion; 3212. mounting holes; 3213. a follow-up deformation unit; 3221. a clamping hook; 3222. mounting the protrusion; 3223. an aperture; 3231. a base part; 3231a, an insertion hole; 3232. a core portion; 3322. a front end portion; 3511. a relay shaft; 3521. a gear portion; 3522. an insertion hole; 3531. a drive transmission shaft; 3541. an output gear bearing; 3551. an output shaft (coupling portion); 3552. an eccentric shaft; 3553. rotating the base fastening screw; 4111. a peripheral wall; 4112. a top wall; 4112a, a top surface; 4112b, a through hole; 4112c, a hook insertion recess; 4112d, an engaging part; 4112e, a through hole; 4121. a rotating base receiving recess; 4121a, through holes; 4122. a guide rail housing recess; 4123. an accessory mount fastening screw; 4124. a rail fastening screw; 4212. mounting holes; 4213. a follow-up deformation unit; 4221. a frame portion; 4222. a horizontal bar section; 4224. mounting the protrusion; 4231. a base part; 4231a, a slide base housing part; 4231b, 2 nd parallel surface; 4232. a core portion; 4233. a flange portion; 4322. a front end portion; 4322c, small protrusions; 4511. a relay shaft; 4521. a gear portion; 4533. a drive transmission shaft; 4541. an output gear bearing; 4551. an output shaft; 4552. an eccentric shaft; 4553. rotating the base fastening screw; 4711. an eccentric shaft housing section; 4712. the 1 st parallel surface; 32131. an elastic portion; 32311. a concave side conical surface (concave side conical surface); 32312. a concave hemispherical surface; 32313. a concave lateral cylindrical surface; 33222. extending the small protrusion; 35521. convex side conical surfaces (convex side conical surfaces); 35522. a convex hemispherical surface; 35523. a convex lateral cylindrical surface; 42131. an elastic part; a1, a push rod; a2, a push rod; a3, a push rod; a4, a push rod; a1, arrow (direction of load); a2, arrow (direction of load); b1, a detected protrusion; b2, a detected protrusion; b3, the detected protrusion part; b4, a detected protrusion part; b1, point; b2, point; b3, point; b4, point; c1, axis (1 st axis); c2, axis (2 nd axis); g1, a gap; g2, clearance; g3, clearance; g4, clearance; r1, diameter; r2, diameter; RC, rotation axis; sw1, connection detection switch; sw2, connection detection switch; sw3, a connection detection switch; sw4, connection detection switch; theta 1, cone angle; θ 2, cone angle.

Detailed Description

Hereinafter, embodiments will be described in detail with reference to the drawings. However, the detailed description above may be omitted. For example, detailed descriptions of well-known matters or repetitive descriptions of substantially the same configuration may be omitted.

The drawings and the following description are provided to enable those skilled in the art to fully understand the present invention, and are not intended to limit the subject matter recited in the claims.

Hereinafter, the 1 st operation unit 30 and the 2 nd operation unit 40, which will be described later, may be simply referred to as "operation units" without being particularly distinguished from each other. Hereinafter, the direction in which the surgical unit moves relative to the main body 20 when the surgical unit is attached to and detached from the main body 20 will be described as the vertical direction. In addition, the upper and lower sides are defined in a state where the surgical unit is located below the main body 20.

[ example of scalp Care device ]

The scalp care device 10 of the present embodiment includes: a main body 20 that houses an electric motor (motor) 235 as a drive source; and a plurality of surgical units that are removably attached to the main body 20.

As described above, the scalp care apparatus 10 according to the present embodiment can attach and detach the plurality of surgical units to and from the main body 20 so as to be replaceable.

In the present embodiment, as shown in fig. 1 to 4, the 1 st surgical unit 30 and the 2 nd surgical unit 40 are exemplified as a plurality of surgical units that can be attached to and detached from the main body portion 20 so as to be replaceable.

That is, in the present embodiment, the scalp care apparatus 10 includes two kinds of operation units, i.e., the 1 st operation unit 30 and the 2 nd operation unit 40, and each operation unit is attached to and detached from the common main body portion 20.

In addition, by replacing the operation unit attached to the main body 20, different scalp care effects can be obtained.

The scalp care apparatus 10 further includes a1 st mounting table 60 on which the 1 st surgical unit 30 is mounted, and a2 nd mounting table 70 on which the 2 nd surgical unit 40 is mounted (see fig. 62 to 69).

[ example of Main body ]

First, an example of the main body will be described with reference to fig. 5 to 24.

In the present embodiment, as shown in fig. 5 to 19, the main body portion 20 includes a cover 21 constituting an outline. The cover 21 is also referred to as a housing, and can be formed using, for example, an insulating synthetic resin material.

In the present embodiment, the cover 21 is formed by joining a plurality of divided bodies, and a cavity is formed inside the cover 21 formed by joining the divided bodies. Various electrical components are housed in the cavity. Specifically, the motor 235, a battery (power supply) 232 that supplies electric power to the motor 235, a control circuit 22 having a control unit that controls turning on and off of the power supply (turning on and off of the drive of the motor 235), and the like are incorporated in a cavity formed inside the housing 21.

Further, the cover 21 includes: a cylindrical wall portion (cover main body) 211 having a substantially cylindrical shape penetrating in the vertical direction; an upper cover portion 212 configured to cover an upper opening of the cylindrical wall portion 211; and a bottom plate 213 disposed to cover the lower opening of the cylindrical wall portion 211.

An opening portion having a substantially quadrangular shape is formed at one end side (lower end side) of the cylindrical wall portion 211 to which the surgical unit is attached. Further, an opening having a substantially quadrangular shape with an opening area smaller than that of an opening formed at one end (lower end) is formed at the other end (upper end) of the cylindrical wall portion 211.

The cylindrical wall portion 211 has a shape in which the diameter thereof is reduced at a position midway in the vertical direction with respect to the opening portions formed on one end side (lower end side) and the other end side (upper end side). Specifically, the cylindrical wall portion 211 has a shape that gradually decreases in diameter from one end side in the vertical direction toward a halfway position and gradually decreases in diameter from the other end side toward the halfway position. In the present embodiment, the reduced diameter portion of the cylindrical wall portion 211 is formed at a position close to the opening formed at the other end side (upper end side).

By providing the reduced diameter portion in the middle of the cylindrical wall portion 211 in the vertical direction in this manner, the user can use the scalp care apparatus 10 while holding the reduced diameter portion of the cylindrical wall portion 211. That is, in the present embodiment, the reduced diameter portion of the cylindrical wall portion 211 becomes the grip portion 20a of the main body portion 20.

The opening formed at the other end side (upper end side) in the vertical direction of the cylindrical wall portion 211 is closed by the upper lid portion 212. In the present embodiment, the upper lid portion 212 includes: a body cover 2122 as a fastened component that seals an opening formed on the other end side (upper end side); and an operation panel 2121 disposed on the upper side of the main body cover 2122.

The body cover 2122 shown in fig. 12 is fixed to the housing 21 by the body cover fastening screws 214. In a state where the body cover 2122 is fixed to the housing 21, a gap between the inner surface of the cylindrical wall portion 211 and the body cover 2122 is sealed (seal) by an upper sealing member 2141 as a compressed component.

The upper sealing member 2141 shown in fig. 12 and 13 has: a1 st sealing portion 2141a that seals a gap between the inner surface of the cylindrical wall portion 211 and the main body cover 2122; and a2 nd sealing portion 2142 which seals a screw boss portion (a 124124720812473portion) (a fastening portion) formed at the main body cover 2122. The 1 st sealing part 2141a is integrally formed with the 2 nd sealing part 2142. That is, in the present embodiment, the 1 st seal portion 2141a and the 2 nd seal portion 2142 are connected by a connecting portion 2143 extending radially inward from the inner edge of the 1 st seal portion 2141 a. The upper sealing member 2141 may be formed of a flexible member such as an elastomer, for example. In the present embodiment, the main body cover 2122 and the upper sealing member 2141 are integrated by two-color molding.

The upper sealing member 2141 integrally formed with the 1 st and 2 nd sealing portions 2141a and 2142 is compressed in the up-down direction between the outer cover 21 and the main body cover 2122, thereby waterproofing the inside of the outer cover 21 of the main body portion 20 (refer to fig. 8 and 11).

An operation switch button 222 for operating a push-type power switch (not shown) for switching the power on and off (turning on and off the drive of the motor 235) is provided on the upper lid portion 212 so as to be exposed upward.

In the present embodiment, the control circuit 22 is disposed below the main body cover 2122, and a power switch is mounted on the control circuit 22. Specifically, a through hole 2122a penetrating in the vertical direction is formed in the main body cover 2122, and the power switch is attached to the upper side of the control circuit 22 at a position overlapping the through hole 2122 a. At this time, the gap between the power switch and the through hole 2122a is covered by the operation switch pad 221 formed integrally with the main body cover 2122. Thus, water does not enter the interior of the through-hole 2122 a.

A through hole 2121a penetrating in the vertical direction is also formed in the operation panel 2121, and the operation switch button 222 is inserted into the through hole 2121 a. In the present embodiment, the power switch is a push-type power switch as an example, but may be a slide-type switch or another switch as long as it can turn on and off the power.

Further, a motor 235 is electrically connected to the control circuit 22 via a lead wire. In the present embodiment, the motor 235 is housed in the housing (casing) 21 while being held by the motor base 23 disposed below the control circuit 22. The motor base 23 is fixed to the cover 21 by a motor base fastening screw 231.

Further, a motor 235 is held on the upper portion of the motor base 23, and a battery 232 is held on the lower portion of the motor base 23. As the battery 232, a lithium ion battery, a nickel metal hydride battery, or the like can be used.

In the present embodiment, a connection detection switch 233 as a detection means is attached to the motor base 23. The connection detection switch 233 is used to detect the pressing of the surgical unit by the push rod, which will be described later, when all the components constituting the surgical unit are attached to the main body portion 20. The connection detection switch 233 can drive the motor 235 by detecting the pressing by the push rod. That is, in the present embodiment, in a state where the connection detection switch 233 does not detect the pressing by the push rod, the motor 235 is not driven even if the switch button 222 is operated.

Further, a power supply terminal 223 is attached to the cylindrical wall portion 211 in a state of being sealed by the O-ring 224 so as to be exposed to the outside, and a power supply cable or the like, which is not shown, can be inserted. That is, battery 232 is charged by inserting a power supply cable or the like into power supply terminal 223. The method of charging battery 232 is not limited to the method of inserting a power feed cable or the like into power feed terminal 223, and may be, for example, a charging method by non-contact power feeding, a charging method by long-distance power transmission using a power transmission system, or the like.

In the present embodiment, the motor 235 includes a motor main body 2351 and a motor shaft 2352, and is held by the motor base 23 in a state where the motor shaft 2352 protrudes downward with respect to the motor main body 2351. That is, the motor 235 is housed in the cavity of the housing 21 in a state in which the rotation axis direction substantially coincides with the vertical direction.

The coupling 261 of the main body side drive transmission unit 26 is connected to the motor shaft 2352 projecting downward via the main body side gear mechanism 24.

The main body-side gear mechanism 24 includes a pinion gear 241 attached to the motor shaft 2352. The pinion gear 241 is mounted to the motor shaft 2352 so as to rotate with the motor shaft 2352.

Further, the main body-side gear mechanism 24 includes: a1 st gear 242 that is engaged with the pinion gear 241 and rotates about a vertical direction; and a1 st shaft 2421 to which the 1 st gear 242 is attached in a state of extending in the up-down direction.

The main body-side gear mechanism 24 includes: a2 nd gear 243 which is engaged with the 1 st gear 242 and rotates about the vertical direction; and a2 nd shaft 2431 extending in the up-down direction for mounting the 2 nd gear 243.

Further, the main body-side gear mechanism 24 includes: a3 rd gear 244 that is engaged with the 2 nd gear 243 and rotates about the vertical direction; and a3 rd shaft 2441 extending in the up-down direction, to which the 3 rd gear 244 is mounted.

Further, the main body-side gear mechanism 24 includes: an output gear 245 that is meshed with the 3 rd gear 244 and rotates about the vertical direction; and an output shaft 246 extending in the up-down direction for mounting an output gear 245. The output shaft 246 is held by a bearing 247.

A coupling 261 of the main body side drive transmission unit 26 is connected to the lower end of the output shaft 246. The main body side drive transmission unit 26 is used to transmit the drive (rotation) of the motor 235 to the surgical member of the surgical unit attached to the main body 20.

The coupling 261 of the main body side drive transmission unit 26 shown in fig. 20 to 22 includes a regular hexagonal prism-shaped (polygonal prism-shaped) main body portion (coupling main body) 2611 and a flange portion 2612 connected to a root side end (upper end) of the main body portion 2611. The body 2611 is inserted into a regular hexagonal (polygonal) insertion hole formed in the surgical unit side drive transmission portions (the 1 st surgical unit side drive transmission portion 352 and the 2 nd surgical unit side drive transmission portion 452). By combining the hexagonal prism-shaped coupling 261 and the hexagonal insertion hole, the drive (rotation) of the motor 235 is transmitted from the main body portion 20 to the surgical unit mounted to the main body portion 20.

In the present embodiment, the length L1 of the widest outer portion of the front end surface 2611a of the body portion 2611 intersecting the axial direction of the coupling 261 is shorter than the length L2 of the opposite side of the hexagonal insertion hole 3522.

In the present embodiment, the diameter R1 of the circle circumscribing the front end surface 2611a of the body portion 2611 is not more than half the diameter R2 of the circle circumscribing the hexagonal insertion hole 3522. In the present embodiment, an arc portion 2614 having a radius of curvature equal to or larger than the radius of a circle circumscribing the insertion hole 3522 is formed between the front end surface 2611a of the body portion 2611 and the outer surface 2613.

As shown in fig. 23, the output shaft 246 having a shaft-side flat surface (shaft-side D-cut surface) 2461 at a tip end portion (lower end portion) is press-fitted into the coupling 261. As shown in fig. 24, an air discharge portion (groove portion) 2615a is formed at the center of an inner flat surface (inner D-cut surface) 2615 of the coupling 261 so as to discharge air when the output shaft 246 is pressed in. The air vent 2615a functions as an air vent hole when the output shaft 246 is press-fitted into the coupling 261, and can facilitate the press-fitting operation of the output shaft 246.

The coupling 261 has a flange 2612 at the upper end, and the coupling 261 is covered with a coupling pressure plate 27 that is another structure. The flange 2612 of the coupling 261 is pressed from below by the coupling pressing plate 27, so that the coupling 261 can be prevented from falling off and the coupling 261 is held by the housing 21 without interfering with the transmission of the driving force of the motor 235.

With the above configuration, the drive at the rotation speed lower than the rotation speed of the motor 235 is transmitted to the surgical unit attached to the main body 20. Further, when the main body portion 20 is viewed from the rear (in a state where the main body portion 20 is viewed from the lower side in the vertical direction which is the attaching and detaching direction of the surgical unit to the main body portion 20), the coupling 261 of the main body-side drive transmission portion 26 has a regular hexagonal shape (polygonal shape). In this way, the operation unit side drive transmission unit described later can be attached to the main body side drive transmission unit 26 with idling suppressed. The main body side drive transmission part 26 and the surgical unit side drive transmission part are not limited to the polygonal shape as long as they are attached in a state in which idling is suppressed. For example, a structure in which the letter D is cut out may be adopted, and idling can be suppressed by using a means for increasing the frictional force between the main body side drive transmission part 26 and the surgical unit side drive transmission part.

In the present embodiment, the opening formed at one end side (lower end side) of the cylindrical wall portion 211 is closed by the bottom plate 213 as a fastened component. The base plate 213 is fixed to the housing 21 by a base plate fastening screw 215.

In the present embodiment, the bottom plate 213 has a plate shape, and a flat lower surface of the bottom plate 213 extending in the horizontal direction serves as an end surface on the side where the surgical unit is attached.

A battery storage recess 2131 is formed in the upper side of the bottom plate 213, and the lower portion of the battery 232 is stored in the battery storage recess 2131 in a state where the bottom plate 213 is fixed to the cover 21.

Further, a hook storage portion 2132 that protrudes downward and is open in a radially outward direction is formed on the lower side of the bottom plate 213, and a hook 28 that engages with an engagement portion, described later, of the surgical unit is stored in the hook storage portion 2132. The hook 28 is accommodated in the hook accommodating portion 2132 in a state of being biased in the radially outward direction by the biasing spring 281.

Further, an output shaft insertion hole 2134 is formed in the bottom plate 213, and the output shaft insertion hole 2134 penetrates in the vertical direction and the output shaft 246 is inserted thereinto. When the output shaft 246 is inserted, a gap formed between the outer surface of the output shaft 246 and the inner surface of the output shaft insertion hole 2134 is sealed by the output shaft packing 25. The output shaft packing 25 is pressed by the coupling pressure plate 27 to seal a gap formed between the outer surface of the output shaft 246 and the inner surface of the output shaft insertion hole 2134.

The coupling pressure plate 27 is fixed to the base plate 213 by coupling pressure plate fastening screws 216. Specifically, a coupling retainer storage recess 2133 is formed on the lower side of the bottom plate 213, and the coupling retainer 27 is fixed to the bottom plate 213 by coupling retainer fastening screws 216 in a state of being stored in the coupling retainer storage recess 2133.

A through hole penetrating in the vertical direction is formed in the bottom plate 213, and a rubber switch button 234 (see fig. 27) is attached to the through hole.

The base plate 213 shown in fig. 14 is fixed to the housing 21 by a base plate fastening screw 215. In a state where the bottom plate 213 is fixed to the housing 21, a gap between the inner surface of the cylindrical wall portion 211 and the bottom plate 213 is sealed by a lower sealing member 217 (seal) which is a compressed component.

The lower sealing member 217 shown in fig. 14 and 15 has: a1 st sealing portion 2171 that seals a gap between the inner surface of the cylindrical wall portion 211 and the bottom plate 213; and a2 nd sealing portion 2172 that seals a screw boss portion (tightening portion) formed at the bottom plate 213. The 1 st sealing portion 2171 is integrally formed with the 2 nd sealing portion 2172. That is, in the present embodiment, the 1 st seal portion 2171 and the 2 nd seal portion 2172 are connected by the connecting portion 2173 extending radially inward from the inner edge of the 1 st seal portion 2171. The lower sealing member 217 may be formed of a flexible member such as an elastomer, for example. In the present embodiment, the bottom plate 213 and the lower sealing member 217 are integrated by two-color molding.

The lower sealing member 217 integrally formed with the 1 st and 2 nd sealing portions 2171 and 2172 is compressed between the cover 21 and the bottom plate 213 in the up-down direction, thereby waterproofing the inside of the cover 21 of the main body 20 (see fig. 9).

In this way, in the present embodiment, the main body portion 20 has a waterproof structure, and entry of water into the cavity in the housing 21 can be suppressed.

As shown in fig. 9 and 18, in the present embodiment, an annular main body side sealing member 218 is disposed at an end portion (lower end portion) of the housing 21 (cylindrical wall portion 211) on the treatment unit side. The main body side sealing member 218 may be formed of a flexible member such as an elastic body.

A body-side sealing member 218 formed at the end of the cover 21 on the surgical unit side is compressed between the cover 21 and the surgical unit in the vertical direction, thereby waterproofing the inside of the joint portion between the body 20 and the surgical unit (see fig. 19).

In this way, in the present embodiment, the coupling portion between the main body portion 20 and the operation unit is made waterproof, and entry into the water interior can be suppressed.

In the waterproof structure for waterproofing the gap between the cover 21 and the bottom plate 213, the lower sealing member 217A (see fig. 25 and 26) may have both a function as a waterproof valve and a function as a relief valve (safety valve). That is, the function of the waterproof valve is to prevent water from entering the cover 21, and the function of the relief valve is to discharge gas generated in the cover 21 to the outside.

The lower sealing member 217A has a tongue-shaped portion 2174 extending radially outward, and the tongue-shaped portion 2174 is compressed radially between the outer cover 21 and the bottom plate 213. With this arrangement, the main body portion 20 can be configured as follows: the gas discharge valve exhibits high resistance to pressure from the outside, and when gas or the like is generated inside, the gas is easily discharged.

Hereinafter, an example of the detection mechanism provided in the scalp care apparatus will be described with reference to fig. 27 to 31.

The operation of the detection mechanism 29 will be described with reference to the mounting of the 1 st surgical unit 30 to the main body 20. The operation of the probe mechanism 29 in the case of attaching the 2 nd surgical unit 40 to the main body 20 is the same as that in the case of attaching the 1 st surgical unit 30 to the main body 20, and therefore, the description thereof is omitted.

The detection mechanism 29 has: a switch button 234 disposed on the main body 20; a push rod 341 configured to the 1 st fitting 31 discussed later; and a detected protrusion 343 which is disposed on the 2 nd fitting 32 discussed later.

As shown in fig. 27 and 28, in a state where the 1 st metal fitting 31 is not attached to the body portion 20, the push rod 341 is pressed downward by the biasing spring (coil spring) 342.

Even if only the 1 st accessory 31 is connected to the main body portion 20 in this state, the switch button 234 does not move, and the movable contact 2331 connected to the detection switch 233 does not move.

As shown in fig. 29 and 30, when both the 1 st metal fitting 31 and the 2 nd metal fitting 32 are coupled to the body section 20, the detected protrusion 343 disposed in the 2 nd metal fitting 32 pushes up the push rod 341 disposed in the 1 st metal fitting 31. Thus, the tip (upper end) of the pusher 341 is exposed from the upper surface of the 1 st metal fitting 31, and the switch knob 234 disposed on the body portion 20 is pushed upward by the tip of the pusher 341.

Movable contact 2331 is pushed upward by the tip (upper end) of switch button 234 pushed upward, and movable contact 2331 contacts fixed contact 2332 and connects connection detection switch 233.

For example, an electric signal from the connection detection switch 233 is transmitted to the control unit, and the control signal controls the driving of the motor 235. Alternatively, the circuit may be provided with contacts (movable-side contact 2331 and fixed-side contact 2332) connected to the detection switch 233, and the electric power may be supplied to the motor 235 directly through the contacts.

Fig. 31 shows an example of an electric circuit switch (switch) having a movable contact 2331 and a fixed contact 2332.

Movable-side contact 2331 has a substantially semi-cylindrical movable-side contact surface 2331a, and movable-side contact surface 2331a has an axis C1 extending in a direction orthogonal to the direction of movement of movable-side contact 2331. On the other hand, the fixed-side contact 2332 has a substantially semi-cylindrical fixed-side contact surface 2332a, and the substantially semi-cylindrical fixed-side contact surface 2332a has an axis C2 extending in a direction orthogonal to the axis C1 of the movable-side contact surface 2331 a.

In the present embodiment, the semi-cylindrical movable contact surface 2331a is divided into two parts, and the divided movable contact surfaces 2331a are arranged in a row along the direction of the axis C1. The number of the fixed-side contact surfaces 2332a formed in a semi-cylindrical shape is two, and the fixed-side contact surfaces 2332a formed are arranged in a direction along the axis C1 of the movable-side contact surface 2331 a.

By configuring the movable contact 2331 and the fixed contact 2332 in this manner, foreign matter can easily fall along the semi-cylindrical movable contact surface 2331a or the semi-cylindrical fixed contact surface 2332a even when foreign matter enters between the contacts. Further, by dividing the contact surfaces of the contacts into two, even when foreign matter enters between the contact surfaces of one contact, conduction between the movable contact 2331 and the fixed contact 2332 can be secured between the contact surfaces of the other contact.

By configuring the detection means 29 in this manner, it is possible to detect that all the components (the 1 st component and the 2 nd component) constituting the surgical unit are connected by the 1 detection means 29.

Next, a modified example of the detection mechanism will be described with reference to fig. 32 to 39.

As shown in fig. 32, the probe mechanism of the modified example includes a plurality of connection detection switches (sw 1 to sw 4) disposed in the main body. In addition, at least 1 push rod (a 1 to a 4) is disposed in the 1 st fitting, and at least 1 detected protrusion (b 1 to b 4) is disposed in the 2 nd fitting. By configuring the detection means in this way, it is possible to obtain the detection means having a function of identifying at least one of the type of the surgical unit and the combination of the accessories by the combination of on and off of the plurality of connection detection switches (sw 1 to sw 4).

In the illustrated example, the detection means includes 4 connection detection switches (sw 1 to sw 4). In this case, as shown in the table in fig. 33, the type of the surgical unit or the combination of the components, which is 15 or more, can be detected by the combination of the connected connection detection switches.

In the table in fig. 33, "0" indicates "connection detection switch OFF (OFF)", and "1" indicates "connection detection switch ON (ON)". The detection pattern "0" in the table in fig. 33 is the case where any one of the attachments is disconnected, and the detection pattern "15" in the table in fig. 33 is the case where the push rod and the detected protrusion portion shown in fig. 32 are combined.

Fig. 34 to 36 show an example of a case where there are a plurality of types of the 1 st component and there are 3 types of combinations of the 2 nd component for each of the 1 st component. In the case of the combination of the pusher and the detected protrusion shown in fig. 34, the detection pattern is "11" in the table in fig. 33. In the case of the combination of the pusher and the detected protrusion shown in fig. 35, the detection pattern is "8" in the table in fig. 33. In the case of the combination of the pusher and the detected projection shown in fig. 36, the detection pattern is "3" in the table in fig. 33.

Fig. 37 to 39 show an example of a case where there are a plurality of types of the 2 nd component and there are 3 types of combinations of the 1 st component for each of the 2 nd components. In the case of the combination of the pusher and the detected projection shown in fig. 37, this is the detection pattern "11" of the table in fig. 33. In the case of the combination of the pusher and the detected protrusion shown in fig. 38, the detection pattern is "8" in the table in fig. 33. In the case of the combination of the pusher and the detected projection shown in fig. 39, the detection pattern is "3" in the table in fig. 33.

[ an example of the 1 st surgical unit ]

Next, an example of the 1 st surgical unit will be described with reference to fig. 40 to 46.

The 1 st surgical unit 30 includes: a1 st metal fitting 31 as a head portion, one end side (upper end side) of the 1 st metal fitting 31 being connected to the main body portion 20; and a2 nd fitting 32 as a1 st operation part (operation part) connected to the other end side (lower end side) of the 1 st fitting 31.

The 1 st fitting 31 includes a1 st housing 310 constituting an outline of the 1 st fitting 31. The 1 st housing 310 is also referred to as a head case, and can be formed using, for example, a synthetic resin material.

The 1 st case 310 is formed by joining a plurality of divided bodies, and a cavity is formed inside the 1 st case 310 formed by joining the divided bodies. Further, a1 st surgical unit side gear mechanism 35 described later is accommodated in the cavity.

Specifically, the 1 st housing 310 includes: an accessory case 311 having a substantially quadrangular shape when viewed from the rear surface and opening downward; and a fitting base 312 configured to cover an opening of the fitting housing 311. The fitting base 312 is fixed to the fitting housing 311 with fitting base fastening screws 3121.

The accessory housing 311 includes a peripheral wall 3111 and a top wall 3112 provided continuously to an upper end of the peripheral wall 3111. The peripheral wall 3111 has a shape that gradually expands in diameter from an upper end side to a lower end side, which is the side attached to the body 20. The ceiling wall 3112 is plate-shaped, and a flat ceiling surface 3112a of the ceiling wall 3112 extending in the horizontal direction is an end surface attached to the main body portion 20. In a state where the 1 st surgical unit 30 is attached to the main body 20, the top surface 3112a is configured to be substantially the same plane as the lower surface (the end surface of the main body on the side where the surgical unit is attached).

In this way, the shapes of the main body portion 20 and the 1 st operation unit 30 can be easily designed in the scalp care device 10 so that both can be smoothly continued at the joint portion when the 1 st operation unit 30 is mounted to the main body portion 20.

In the present embodiment, the joint portion between the main body portion 20 and the surgical unit is a flat surface. In this way, the scalp care apparatus 10 is smoothly continued at the joint portion, and the shape of the other portion can be more easily set to various shapes. That is, the scalp care apparatus 10 configured to be able to replace a plurality of surgical units can be improved in design, and the flexibility in design of the main body 20 and the surgical units can be improved.

Further, by making the joint portion between the main body 20 and the 1 st surgical unit 30 flat, the internal space can be easily sealed using a sealing member such as an O-ring or a gasket. In the present embodiment, the main body portion 20 of the scalp care apparatus 10 has a waterproof structure. Thus, for example, the user can perform hair washing (scalp washing) and scalp massage (scalp care) using the scalp care apparatus 10 in which the 1 st surgical unit 30 is attached to the main body portion 20 at the time of bathing or the like.

Further, a through hole 3112b penetrating in the vertical direction is formed in the ceiling wall 3112, and the 1 st surgical unit side drive transmission part 352 is inserted into the through hole 3112 b. The 1 st surgical unit side drive transmission portion 352 is formed such that a space having a regular hexagonal shape (polygonal shape) opens upward when the 1 st surgical unit 30 is viewed in plan (in a state where the 1 st metal fitting 31 is viewed from the upper side in the vertical direction). The space of the regular hexagonal shape (polygonal shape) is formed to have a size substantially equal to the outer diameter of the coupling 261 of the main body side drive transmission part 26. When the 1 st surgical unit 30 is attached to the main body 20, the coupling 261 of the main body side drive transmission part 26 is inserted into the space of the regular hexagonal shape (polygonal shape).

In addition, a hook insertion recess 3112c into which the hook receiver 2132 and the hook 28 of the body 20 are inserted when the 1 st surgical unit 30 is attached to the body 20 is formed in the top wall 3112. In the hook insertion recess 3112c, an engagement portion 3112d is formed to engage with the hook 28 when the 1 st surgical unit 30 is attached to the body portion 20.

Further, a water inlet (water supply and discharge port) 311h for cleaning is formed in the accessory housing 311 (top wall 3112) shown in fig. 43. Therefore, the inside of the 1 st fitting 31 can be cleaned through the cleaning water inlet 311h in a state where the body 20 and the 1 st fitting 31 are disconnected from each other.

On the other hand, a cleaning drain port (water supply/drain port) 312h is formed in the accessory mount 312 shown in fig. 44. Therefore, the inside of the 1 st metal fitting 31 can be cleaned through the cleaning drain port 312h in a state where the connection between the 1 st metal fitting 31 and the 2 nd metal fitting 32 is released.

A through hole 3112e is also formed in the ceiling wall 3112, and the pusher 341 is inserted into the through hole 3112e while being biased downward by the biasing spring 342. When the 1 st surgical unit 30 is attached to the main body 20, the push rod 341 presses the rubber switch button 234 upward. Thus, the connection detection switch 233 can detect the pressing by the pusher 341 (when the 1 st surgical unit 30 is attached to the main body portion 20), and drive the motor 235 by the operation of the operation switch button 222. The urging spring 342 can also be omitted by increasing the spring property (urging force) of the rubber switch knob 234.

When the connection detection switch 233 is released from the push rod 341 (when the 1 st surgical unit 30 is detached from the main body portion 20) for some reason during driving of the motor 235, the motor 235 is stopped.

Further, the 1 st surgical unit side gear mechanism 35 is disposed in a space in the accessory housing 311 that opens downward.

The 1 st surgical unit-side gear mechanism 35 includes: a relay gear 351 that rotates about the vertical direction; and a relay shaft 3511 to which the relay gear 351 is attached in a state of extending in the vertical direction. In the present embodiment, the 1 st surgical unit side drive transmission portion 352 is formed at the upper end portion of the relay gear 351, and the gear portion 3521 is formed at the lower end portion of the relay gear 351. The 1 st surgical unit side drive transmission portion 352 is integrally formed with the gear portion 3521.

Further, the 1 st surgical unit side gear mechanism 35 includes: a drive transmission gear 353 that is engaged with the gear portion 3521 and rotates about the vertical direction; and a drive transmission shaft 3531 extending in the vertical direction and to which the drive transmission gear 353 is attached.

The 1 st surgical unit-side gear mechanism 35 includes four output gears 354 that rotate about the vertical direction. In the present embodiment, two output gears 354 of the four output gears 354 on the side close to the relay gear 351 mesh with the gear portion 3521, and two output gears 354 disposed at positions distant from the relay gear 351 mesh with the drive transmission gear 353. In addition, the four output gears 354 are supported by output gear bearings 3541, respectively.

A rotary base 355 is fixed to each of the four output gears 354. The rotating base 355 includes: an output shaft 3551 protruding upward from the center of the disk portion; and an eccentric shaft 3552 that protrudes downward at a position eccentric with respect to the center of the disc portion. The rotating base fastening screw 3553 is attached to the output shaft 3551 in a state inserted into a through hole formed in the center of the output gear bearing 3541 and the output gear 354. In this way, the output gear 354 and the swivel mount 355 are attached with the output gear bearing 3541 interposed between the output gear 354 and the swivel mount 355.

In addition, in the present embodiment, the attachment base 312 is interposed between the output gear bearing 3541 and the output gear 354. The four through holes 312a are formed in the accessory mount 312, so that the swivel mount 355 attached to the output gear 354 is exposed below the accessory mount 312 in a rotatable state.

When the 1 st surgical unit-side gear mechanism 35 is provided, the four rotation bases 355 operate as follows.

First, when the relay gear 351 rotates in one rotational direction (for example, clockwise), the drive transmission gear 353 and the two output gears 354 on the side close to the relay gear 351 rotate in the reverse direction (counterclockwise). That is, the two rotation bases 355 on the side close to the relay gear 351 also rotate in the reverse direction (counterclockwise).

On the other hand, the two output gears 354 disposed at positions distant from the relay gear 351, that is, the two rotation bases 355 disposed at positions distant from the relay gear 351 rotate in the above-described one rotation direction (for example, clockwise).

At this time, the rotary base 355 rotates about the output shaft 3551. Therefore, the eccentric shaft 3552 provided in the rotating base 355 also rotates on a circle around the output shaft 3551. That is, the eccentric shaft 3552 performs a rotational motion along a plane (horizontal plane) orthogonal to the axial direction (vertical direction) of the output shaft 3551.

The 1 st metal fitting 31 having such a configuration is detachably attached with the 2 nd metal fitting 32.

The 2 nd fitting 32 includes: a2 nd housing 322 detachably attached to the 1 st metal fitting 31; and a rubber cover 321 attached to the 2 nd housing 322.

The rubber cap 321 may be made of a flexible member such as an elastic body, and has substantially the same shape and the same size as the first metal fitting 31.

The rubber cap 321 is compressed between the 1 st metal fitting 31 and the 2 nd metal fitting 32 in the vertical direction, and the inside of the connection portion between the 1 st metal fitting 31 and the 2 nd metal fitting 32 is waterproofed (see fig. 17 and 19).

In this way, in the present embodiment, the connection portion between the 1 st metal fitting 31 and the 2 nd metal fitting 32 is made to be a waterproof structure, and entry of water into the interior thereof can be suppressed.

A2 nd case 322 made of a material hard to the rubber cover 321 made of a flexible member is attached to the rubber cover 321.

Specifically, the 2 nd housing 322 is provided with attachment protrusions 3222 protruding upward at substantially the center of each side thereof. The rubber cap 321 is attached to the 2 nd housing 322 by fitting the attachment protrusions 3222 into attachment holes 3212 provided to penetrate in the vertical direction substantially at the center of each side of the outer peripheral edge portion of the rubber cap 321. At this time, a projection 3211 formed at the center of the rubber cap 321 to project upward is inserted and fitted into an engagement hook 3221 formed at the center of the 2 nd housing 322 to project downward (see fig. 46).

In this way, by attaching the 2 nd housing 322 formed of a material hard to the flexible rubber cover 321 to the rubber cover 321, the 2 nd fitting 32 can be easily attached to and detached from the 1 st fitting 31. Further, a portion of the rubber cover 321 to which the 2 nd case 322 is not attached is a follow-up deformation portion 3213, and the operation tool base 323 is fitted into the follow-up deformation portion 3213. In the present embodiment, four circular holes 3223 are formed in the 2 nd housing 322 at positions symmetrical with respect to the center, and portions of the rubber cover 321 corresponding to the four circular holes 3223 serve as the following deformation portions 3213. That is, in the present embodiment, four circular follow-up deformation portions 3213 are formed in the rubber cover 321.

Further, a water supply and drainage port 322h is formed in the 2 nd case 322 shown in fig. 45 and 46. Therefore, in a state where the connection between the 1 st metal fitting 31 and the 2 nd metal fitting 32 is released, the inside of the 2 nd metal fitting 32 can be cleaned through the water supply and discharge port 322h. In the present embodiment, the circular hole 3223 formed in the 2 nd housing 322 also serves as the water supply and drain port 322h.

The applicator base 323 is made of resin or the like having higher rigidity than the rubber cover 321, and is a member that is not easily deformed. The surgical member base 323 includes: a pedestal portion 3231 attached to an eccentric shaft 3552 of the swivel base 355; the core portion 3232 is provided to protrude downward from the lower surface of the base portion 3231, and the flange portion 372 is provided to be continuous with the outer edge of the base portion 3231. In the present embodiment, four core portions 3232 are provided in each of the surgical tool bases 323.

An insertion hole 3231a is formed in the upper surface of the base portion 3231, and the surgical member base 323 is attached to the swivel base 355 by inserting the eccentric shaft 3552 of the swivel base 355 into the insertion hole 3231 a. In this way, the following deformation portion 3213 deforms following the movement of the applicator base 323.

As described above, in the present embodiment, the eccentric shaft 3552 rotates on a circle centered on the output shaft 3551. That is, the eccentric shaft 3552 performs a rotational motion along a plane (horizontal plane) orthogonal to the axial direction (vertical direction) of the output shaft 3551.

Therefore, when the eccentric shaft 3552 rotates, the 1 st surgical instrument (surgical instrument) 33 attached to each eccentric shaft 3552 also rotates on a circle centered on the output shaft 3551 as the eccentric shaft 3552 rotates.

In this manner, in the present embodiment, each of the 1 st surgical tools 33 performs a rotational motion (a swiveling motion) along a plane (a horizontal plane) orthogonal to the axial direction (the vertical direction) of the output shaft 3551. Therefore, the shape of the trajectory traced when the 1 st surgical tool 33 is operated is a circle centered on the output shaft 3551. In the present embodiment, the 1 st surgical member 33 rotates while moving in parallel along the horizontal plane.

In the present embodiment, the four turning bases 355 are arranged such that the eccentric shafts 3552 provided on the turning bases 355 adjacent to each other at a close position (a position other than a diagonal position) are rotated with a phase difference of 180 degrees. In this way, the eccentric shafts 3552 provided to the rotating bases 355 adjacent to each other at a closer position (not a diagonal position) are rotated closer or farther. Thus, the 1 st surgical member 33 mounted to each eccentric shaft 3552 is also rotated closer to or farther from the adjacent 1 st surgical member 33.

In the present embodiment, each of the 1 st surgical members 33 includes two 1 st surgical members 33 that perform a swiveling motion so as to pass each other when approaching and two 1 st surgical members 33 that perform a swiveling motion so as to move in the same direction when approaching. Thus, the scalp care apparatus 10 can knead and knead the scalp when the 1 st surgical tool 33 is brought into contact with the scalp.

With such a configuration, the 1 st surgical unit side gear mechanism 35 that transmits the drive of the motor (drive source) 235 to the plurality of (four) 1 st surgical members 33 can be simplified in configuration. This makes it possible to reduce the size of the 1 st surgical unit 30.

In the present embodiment, the 1 st surgical member 33 is formed by fitting the surgical member base 323 into the follow-up deforming portion 3213 of the rubber cover 321. That is, in the present embodiment, the 1 st surgical member 33 is formed by assembling the rubber cap 321 to the surgical member base 323 which is a relatively high rigidity member, and the rubber cap 321 is a member different from the surgical member base 323 and relatively low in rigidity.

The 1 st surgical member 33 includes: a base 331; and an operation protrusion 332 protruding downward from the top surface (lower surface) 331a of the base 331, the operation protrusion 332 being in contact with the scalp when the scalp care apparatus 10 is used.

The base 331 is formed by covering the base portion 3231 of the applicator base 323 with a rubber cap 321. The surgical projection 332 is formed by covering the core portion 3232 of the surgical base 323 with the rubber cap 321, and a portion of the rubber cap 321 covering the core portion 3232 is an elastic portion 32131. As described above, in the present embodiment, the surgical projection 332 includes the core portion 3232 and the elastic portion 32131 covering the core portion 3232. The core portion 3232 and the elastic portion 32131 are formed of different members.

In the present embodiment, four operation protrusions 332 are provided on each of the four 1 st operation members 33, and three small protrusion protrusions 33222 are provided on the distal end portion 3322 of each operation protrusion 332.

Next, an example of a method of using the 1 st surgical unit 30 having such a configuration will be described.

First, the user attaches the 1 st surgical unit 30 to the main body 20 and attaches the 1 st surgical unit-side drive transmission unit 352 to the main body-side drive transmission unit 26. In this state, the user presses the operation switch button 222 to drive the motor 235, thereby rotating the main body side drive transmission unit 26.

In this way, the rotation of the main body side drive transmission part 26 is transmitted to the 1 st surgical unit side drive transmission part 352, and the 1 st surgical unit side drive transmission part 352 rotates together with the main body side drive transmission part 26. At this time, the gear portion 3521 and the drive transmission gear 353 of the relay gear 351 attached to the 1 st surgical unit side drive transmission portion 352 also rotate together with the 1 st surgical unit side drive transmission portion 352.

Then, the four output gears 354 rotate in a decelerated state by rotating the gear portion 3521 and the drive transmission gear 353.

As the four output gears 354 rotate in this manner, the four rotation bases 355 coupled to the four output gears 354 also rotate.

At this time, the eccentric shafts 3552 provided on the respective rotary bases 355 rotate along a plane (horizontal plane) perpendicular to the axial direction (vertical direction) of the output shaft 3551.

Therefore, when the eccentric shafts 3552 rotate, the 1 st surgical tool 33 attached to each eccentric shaft 3552 also rotates on a circle centered on the output shaft 3551 as the eccentric shafts 3552 rotate. The operation protrusions 332 provided on the 1 st operation member 33 also rotate following the rotation of the 1 st operation member 33. At this time, the surgical projection 332 rotates while moving in parallel along the horizontal plane.

In this state, if the surgical projection 332 is brought into contact with the scalp, the scalp can be cleaned, massaged, or the like (scalp care) by the rotating surgical projection 332.

An example of the operation of releasing the connection of the accessories in the 1 st surgical unit will be described below with reference to fig. 48 to 50.

Fig. 48 shows the no-load state of the 1 st surgical unit 30. The rotating base 355, which is a coupling member, is fixed to the output gear 354 and rotates about the rotation axis RC. The surgical tool holder 323 as a component to be connected is attached to the rotation axis RC by inserting the eccentric shaft 3552 of the rotation holder 355 disposed eccentrically with respect to the rotation axis RC. At this time, gaps G1 and G2 between the flange 372 of the treatment tool base 323 and the frame (the kit base 312) of the 1 st kit 31 are sufficiently ensured. Similarly, gaps G3 and G4 between the flange 372 of the applicator base 323 and the frame (2 nd case 322) of the 2 nd fitting 32 are also sufficiently ensured.

Fig. 49 shows the state of the 1 st surgical unit 30 when an appropriate load in a predetermined range is applied in the direction of the arrow A1 in the surgical operation using the scalp care apparatus 10. When an appropriate load within a predetermined range is applied to the surgical projection 332 in the direction of arrow A1 via the distal end portion 3322, the surgical member base 323 is tilted about the distal end portion of the eccentric shaft 3552 as a fulcrum. The joint between the applicator base 323 and the swivel base 355 makes contact at point B1 shown in fig. 49, and the swivel base 355 does not tilt any further. At this time, the flange portion 372 of the applicator base 323 and the frame (the component base 312) of the 1 st component 31 do not interfere (contact) with each other. Likewise, the flange portion 372 of the applicator base 323 does not interfere with (contact) the frame (2 nd housing 322) of the 2 nd fitting 32.

Fig. 50 shows the state of the 1 st surgical unit 30 when a load of a predetermined value or more is applied to the surgical member base 323, such as a case where the surgical projection 332 has come into contact with a foreign object. The 1 st metal fitting 31 and the 2 nd metal fitting 32 are engaged by at least 1 set of engaging portions (hook, hook insertion recess). When a load of a predetermined value or more is applied to the applicator base 323, the rotary base 355 slides at the front end portion of the eccentric shaft 3552 with the point B1 shown in fig. 49 as a base point, further inclining with respect to the state shown in fig. 49. At this time, the flange 372 of the rotating base 355 is lifted up from the frame (2 nd case 322) of the 2 nd fitting 32 at a point B2 shown in fig. 50, and the engagement between the 1 st fitting 31 and the 2 nd fitting 32 is released.

As shown in fig. 51 to 53, in the present embodiment, the eccentric shaft 3552 of the rotating base 355 as a coupling component is formed as a substantially conical convex portion having a convex side conical surface (convex side conical surface) 35521. On the other hand, the insertion hole 3231a of the operation piece base 323 as the component to be connected is formed as a substantially conical hole having a concave side conical surface (concave side conical surface) 32311. By thus forming the eccentric shaft 3552 and the insertion hole 3231a into substantially conical shapes, respectively, when a load of a predetermined value or more is applied to the surgical member base 323, the surgical member base 323 slides along the convex-side conical surface 35521 of the eccentric shaft 3552. Therefore, when a load of a predetermined value or more is applied to the surgical member base 323, the surgical member base 323 as a coupled component can be disengaged from the rotating base 355 as a coupled component.

As shown in fig. 53, the eccentric shaft 3552 of the swivel base 355 is disposed eccentrically with respect to the rotation axis RC. On the other hand, the base portion 3231 of the surgical member base 323 is inserted into the follow-up deformation portion 3213 formed in the rubber cover 321 having the surgical protrusion 332, and is disposed at a substantially central position of the rotation axis RC in a state where the connection between the 1 st component 31 and the 2 nd component 32 is released. After the 1 st and 2 nd fittings 31 and 32 are coupled, the surgical member base 323 moves along the eccentric shaft 3552 of the rotating base 355 due to the flexural deformation of the rubber cap 321. Therefore, by forming the eccentric shaft 3552 and the insertion hole 3231a in the substantially conical shape as described above, the insertion hole 3231a can be guided when the eccentric shaft 3552 is inserted into the insertion hole 3231 a.

As shown in fig. 52, in the present embodiment, the taper angle θ 1 of the convex-side conical surface 35521 of the eccentric shaft 3552 is acute angle (smaller angle than the taper angle θ 2) with respect to the taper angle θ 2 of the concave-side conical surface 32311 of the insertion hole 3231 a. When the taper angle θ 1 of the convex-side conical surface 35521 is acute angle (larger angle than the taper angle θ 2) with respect to the taper angle θ 2 of the concave-side conical surface 32311 of the insertion hole 3231a, the eccentric shaft 3552 and the insertion hole 3231a may be in a press-fit state, and an appropriate insertion state may not be obtained.

Further, a substantially hemispherical convex semispherical surface 35522 is formed at the tip end (lower end) of the eccentric shaft 3552, and a substantially cylindrical convex semispherical surface 35523 is formed at the base end (upper end). On the other hand, a concave hemispherical surface 32312 having a substantially hemispherical shape is formed at the bottom (lower end) of the insertion hole 3231a, and a concave cylindrical surface 32313 having a substantially cylindrical shape is formed at the opening side end (upper end). The radius of the convex-side hemispherical surface 35522 of the eccentric shaft 3552 is smaller than the radius of the concave-side hemispherical surface 32312 of the insertion hole 3231 a.

When the surgical instrument base 323 as a component to be connected is inclined with respect to the swivel base 355 as a connecting component, the eccentric shaft 3552 of the swivel base 355 contacts the insertion hole 3231a at two points (see fig. 53), i.e., a point B3 on the tip end side and a point B4 on the root end side. That is, a load in a direction substantially perpendicular to the rotation axis RC acts on the tool base 323, and when the tool base 323 is inclined with respect to the rotation base 355, the load is received by the convex hemispherical surface 35522 and the convex cylindrical surface 35523 of the eccentric shaft 3552. When the surgical tool base 323 is tilted with respect to the rotating base 355, the eccentric shaft 3552 contacts the insertion hole 3231a at two points, i.e., a point B3 on the tip end side and a point B4 on the root end side, and thus smooth rotation can be maintained.

In the present embodiment, the swivel base 355 serving as a coupling member is configured such that a coupling portion (the output shaft 3551) with the rotation axis RC (the swivel base fastening screw 3553) is not exposed to the outside (see fig. 51). In addition, a portion of the rotary base 355 exposed to the outside (an outside-exposed portion) is formed of one component, and irregularities or the like that may catch and entangle a part of the user's hair, clothes, or the like are not formed in the outside-exposed portion. Further, no gap is formed around the rotating base 355, which may possibly trap a user's finger or the like. That is, in the present embodiment, the gap between the rotary base 355 and the through hole 312a of the accessory base 312 is a minute gap, and thus, a part of the user's hair, clothes, and the like can be prevented from being drawn into the inside from the gap.

In the present embodiment, the swivel base 355 serving as the coupling component is formed of a relatively soft material such as a synthetic resin material. In particular, the swivel base 355 serving as a coupling component is formed using a material softer than metal. By forming the rotating base 355 using a synthetic resin material or the like in this manner, when the scalp care apparatus 10 is brought into contact with the scalp in a state where the 2 nd attachment 32 having the distal end of the operation portion is detached, the scalp can be prevented from being damaged. In the present embodiment, the front end (lower end) of the eccentric shaft 3552 of the revolving bed 355 is formed in a substantially spherical shape. With this arrangement, the scalp can be more reliably prevented from being damaged by the tip of the eccentric shaft 3552 of the swivel base 355.

[ an example of the 2 nd surgical unit ]

Next, an example of the 2 nd surgical unit will be described with reference to fig. 54 to 61.

The 2 nd surgical unit 40 includes: a1 st metal fitting 41 as a head portion, one end side (upper end side) of the 1 st metal fitting 41 being connected to the main body portion 20; and a2 nd fitting 42 as a2 nd operation portion (operation portion) connected to the other end side (lower end side) of the 1 st fitting 41.

The 1 st fitting 41 includes a1 st housing 410 constituting an outline of the 1 st fitting 41. The 1 st housing 410 is also referred to as a head case, and can be formed using, for example, a synthetic resin material.

The 1 st case 410 is formed by joining a plurality of divided bodies, and a cavity is formed inside the 1 st case 410 formed by joining the divided bodies. Also, a2 nd surgical unit side gear mechanism 45, which will be discussed later, is accommodated in the cavity.

Specifically, the 1 st case 410 has a substantially rectangular shape in a rear view, and includes an accessory case 411 that opens downward, and an accessory base 412 that is disposed so as to cover the opening of the accessory case 411. The accessory mount 412 is fixed to the accessory housing 411 by accessory mount fastening screws 4123.

The metal shell 411 includes a peripheral wall 4111 and a top wall 4112 continuous to an upper end of the peripheral wall 4111. The peripheral wall 4111 has a shape that gradually expands in diameter from the upper end side, which is the side attached to the body 20, toward the lower end side. The ceiling wall 4112 is plate-shaped, and a flat ceiling surface 4112a of the ceiling wall 4112 extending in the horizontal direction serves as an end surface attached to the main body portion 20. In a state where the 2 nd surgical unit 40 is attached to the main body 20, the top surface 4112a is configured to be substantially flush with the lower surface (the end surface of the main body on the side where the surgical unit is attached).

By so doing, the scalp care apparatus 10 can easily design the shapes of the main body portion 20 and the 2 nd application unit 40 so as to smoothly continue at the joint portion upon mounting the 2 nd application unit 40 to the main body portion 20.

In the present embodiment, the joint between the main body 20 and the surgical unit is a flat surface. In this way, the scalp care apparatus 10 can be smoothly continued at the joint portion, and the shape of the other portion can be more easily set to various shapes. That is, the scalp care apparatus 10 configured to be able to replace a plurality of surgical units can be improved in design, and the flexibility in design of the main body 20 and the surgical units can be improved.

Further, by making the joint portion between the main body portion 20 and the 2 nd surgical unit 40 flat, the internal space can be easily sealed using a sealing member such as an O-ring or a gasket. In the present embodiment, as described above, the body portion 20 has a waterproof structure. In this way, for example, the user can perform hair washing (scalp washing) and scalp massage (scalp care) using the scalp care apparatus 10 formed by attaching the 2 nd surgical unit 40 to the main body portion 20 during bathing or the like.

Further, a through hole 4112b penetrating in the vertical direction is formed in the ceiling wall 4112, and the 2 nd surgical unit side drive transmission part 452 is inserted into the through hole 4112 b. The 2 nd surgical unit side drive transmission part 452 is formed so that a space having a regular hexagonal shape (polygonal shape) opens upward in a plan view of the 2 nd surgical unit 40 (a state where the 1 st metal fitting 41 is viewed from the upper side in the vertical direction). The space having the regular hexagonal shape (polygonal shape) is formed to have a size substantially equal to the outer diameter of the coupling 261 of the main body side drive transmission part 26. When the 2 nd surgical unit 40 is mounted on the main body 20, the coupling 261 of the main body side drive transmission part 26 is inserted into the space of the regular hexagonal shape (polygonal shape).

In addition, the top wall 4112 is formed with a hook insertion recess 4112c into which the hook receiver 2132 and the hook 28 of the main body 20 are inserted when the 2 nd surgical unit 40 is attached to the main body 20. In the hook insertion recess 4112c, an engaging portion 4112d that engages with the hook 28 when the 2 nd surgical unit 40 is attached to the main body portion 20 is formed.

A through hole 4112e that penetrates in the vertical direction is also formed in the ceiling wall 4112, and the push rod 441 is inserted into the through hole 4112e while being biased downward by the biasing spring 442. When the 2 nd surgical unit 40 is attached to the main body 20, the push rod 441 pushes the rubber switch button 234 upward. Thus, the connection detection switch 233 can drive the motor 235 by the operation of the operation switch button 222 by detecting the pressing by the push rod 441 (when the 2 nd surgical unit 40 is attached to the main body portion 20). The biasing spring 442 can also be omitted by increasing the spring property (biasing force) of the rubber switch knob 234.

Further, when the push rod 441 presses the connection detection switch 233 while the motor 235 is driven (when the 2 nd surgical unit 40 is detached from the main body portion 20), the motor 235 is stopped.

Further, a2 nd surgical unit side gear mechanism 45 is disposed in a space inside the accessory housing 411 that opens downward.

The 2 nd surgical unit-side gear mechanism 45 includes: a relay gear 451 that rotates about the vertical direction; and a relay shaft 4511 to which the relay gear 451 is attached in a state of extending in the up-down direction. In the present embodiment, the 2 nd surgical unit side drive transmission portion 452 is formed at the upper end portion of the relay gear 451, and the gear portion 4521 is formed at the lower end portion of the relay gear 451. The 2 nd surgical unit side drive transmission portion 452 is formed integrally with the gear portion 4521.

The 2 nd surgical unit-side gear mechanism 45 includes: a drive transmission gear 453 meshed with the gear portion 4521 and rotating about the vertical direction; and a drive transmission shaft 4533 extending in the vertical direction and to which the drive transmission gear 453 is attached.

The 2 nd surgical unit-side gear mechanism 45 includes two output gears 454 that mesh with the drive transmission gear 453, and the two output gears 454 are supported by output gear bearings 4541, respectively.

A rotary base 455 is fixed to each of the two output gears 454. The rotating base 455 includes: an output shaft 4551 projecting upward from the center of the disk portion; and an eccentric shaft 4552 that protrudes downward at a position eccentric with respect to the center of the disc portion. Further, a swivel base fastening screw 4553 is attached to the output shaft 4551 in a state of being inserted into a through hole formed in the center portion of the output gear bearing 4541 and the output gear 454. In this way, output gear 454 and pedestal 455 are attached with output gear bearing 4541 interposed between output gear 454 and pedestal 455.

In the present embodiment, the accessory mount 412 is interposed between the output gear bearing 4541 and the output gear 454.

Specifically, the accessory base 412 includes a pair of swivel base placement plates inclined at about 15 degrees with respect to the horizontal plane, and swivel base housing recesses 4121 are formed in the swivel base placement plates, respectively. Further, a through hole 4121a is formed in the rotating base housing concave portion 4121, through which the output shaft 4551 passes. In this way, the rotating base 455 attached to the output gear 454 is rotatably accommodated in the rotating base accommodating recess 4121 and is exposed below the accessory base 412.

When the 2 nd surgical unit side gear mechanism 45 is provided, the two rotating bases 455 operate as follows.

First, when the relay gear 451 rotates in one rotational direction (for example, clockwise), the drive transmission gear 453 rotates in the reverse rotational direction (counterclockwise).

When the drive transmission gear 453 rotates in the reverse direction (counterclockwise), the two output gears 454 rotate in the above-described one rotation direction (clockwise). That is, the two pivoting bases 455 pivot in one of the aforementioned pivoting directions (clockwise).

At this time, the rotating base 455 rotates about the output shaft 4551. Therefore, the eccentric shaft 4552 provided to the rotating base 455 also rotates on a circle centered on the output shaft 4551. That is, the eccentric shaft 4552 performs a rotational motion along a plane orthogonal to the axial direction of the output shaft 4551.

In the present embodiment, the scalp care apparatus 10 can convert the rotational motion of the eccentric shaft 4552 into the reciprocating linear motion.

Specifically, the guide rail 46 and the slide base 47 movable along the rail portion 461 of the guide rail 46 are provided, whereby the rotational motion of the eccentric shaft 4552 is converted into the reciprocating linear motion.

In the present embodiment, two guide rails 46 are used for each rotating base 455, and each guide rail 46 is provided with a mounting rib 462. Then, in a state where the rail 46 is received in the rail receiving recess 4122 formed in the accessory mount 412, the rail fastening screw 4124 is inserted into the attachment rib 462, thereby fixing the rail 46 to the accessory mount 412. At this time, the two guide rails 46 are fixed to the accessory base 412 in a state where the openings of the rail portions 461 formed in the respective guide rails 46 face each other through the swivel base 455.

The slide base 47 includes a main body 471 having a substantially box shape and a pair of flanges 472 provided continuously to an upper end of the main body 471. The pair of flange portions 472 are inserted into the facing rail portions 461. In this way, the slide base 47 can be linearly reciprocated along the rail portion 461 of the guide rail 46. In addition, an eccentric shaft housing portion 4711 is formed in the body portion 471, and the eccentric shaft 4552 is housed in the eccentric shaft housing portion 4711.

With such a configuration, when the eccentric shaft 4552 is rotated, the body 471 is pushed by the eccentric shaft 4552 and linearly reciprocates along the rail 461.

The 1 st metal fitting 41 having such a configuration is detachably attached with the 2 nd metal fitting 42.

The 2 nd component 42 includes: a2 nd housing 422 detachably attached to the 1 st metal fitting 41; and a rubber cover 421 attached to the No. 2 case 422.

The rubber cover 421 may be made of a flexible member such as an elastic body, and has substantially the same shape and the same size as those of the first metal fitting 41.

A2 nd case 422 made of a material hard to the rubber cover 421 made of a flexible member is attached to the rubber cover 421.

Specifically, mounting protrusions 4224 protruding upward are provided along each side of the 2 nd casing 422. The rubber cover 421 is attached to the 2 nd case 422 by fitting the attachment projections 4224 into attachment holes 4212 provided to penetrate in the vertical direction along each side of the outer peripheral edge portion of the rubber cover 421. At this time, a projection (not shown) formed on the rubber cap 421 and projecting upward is inserted and fitted into an engagement hook (not shown) formed on the 2 nd housing 422 and projecting downward.

In this way, by attaching the 2 nd housing 422 formed of a material hard to the flexible rubber cover 421 to the rubber cover 421, the 2 nd fitting 42 can be easily attached to and detached from the 1 st fitting 41. Further, a portion of the rubber cover 421 to which the 2 nd case 422 is not attached serves as a follow-up deformation portion 4213, and the operation tool base 423 is fitted into the follow-up deformation portion 4213. In the present embodiment, the 2 nd case 422 includes a frame portion 4221 and a horizontal bar portion 4222, and two holes having a quadrangular shape are formed at positions symmetrical with respect to the center of the 2 nd case 422. Further, the rubber cover 421 has a portion corresponding to the two quadrangular holes serving as a follow-up deformation portion 4213. That is, in the present embodiment, two follow-up deformation portions 4213 having a quadrangular shape are formed in the rubber cover 421.

The applicator base 423 is made of resin or the like having higher rigidity than the rubber cover 421, and is a member that is not easily deformed. The surgical tool base 423 includes: a base portion 4231 attached to the body portion 471 of the slide base 47; and a core portion 4232 provided to protrude downward from a lower surface of the base portion 4231. The applicator base 423 further includes a pair of flange portions 4233 provided continuously with the upper end of the base portion 4231. In the present embodiment, nine core portions 4232 are provided in each of the surgical tool bases 423.

Moreover, a slide base accommodation portion 4231a is formed in the base portion 4231, and the operation piece seat 423 is attached to the swivel base 455 by inserting the body portion 471 of the slide base 47 into the slide base accommodation portion 4231 a. In this way, the following deformation unit 4213 deforms following the movement of the applicator base 423.

As described above, in the present embodiment, the eccentric shaft 4552 rotates on a circle centered on the output shaft 4551. That is, the eccentric shaft 4552 performs a rotational motion along a plane orthogonal to the axial direction of the output shaft 4551.

Then, the rotational motion is converted into a reciprocating linear motion by the guide rail 46 and the slide base 47.

Therefore, when the eccentric shafts 4552 rotate, the 2 nd surgical tool (surgical tool) 43 attached to each eccentric shaft 4552 makes a reciprocating linear motion along a plane orthogonal to the axial direction of the output shaft 4551 in accordance with the rotation of the eccentric shafts 4552.

In this manner, in the present embodiment, each of the 2 nd surgical members 43 performs a reciprocating linear motion (reciprocating motion) along a plane orthogonal to the axial direction of the output shaft 4551. Therefore, the shape of the trajectory traced by the action of the 2 nd surgical member 43 is made to be a straight line.

As such, in the present embodiment, the scalp care apparatus 10 includes the operation units (the 1 st operation unit 30 and the 2 nd operation unit 40) having the operation members whose movements are different from each other.

Specifically, the shape (circumference) of the trajectory described when the 1 st operation tool 33 is operated (revolved) is different from the shape (straight line) of the trajectory described when the 2 nd operation tool 43 is operated (reciprocated).

In the present embodiment, at least one of the plurality of surgical tools 43 is connected to an output shaft 4551 whose tip is inclined toward the central axis of the 2 nd attachment 42 serving as a surgical site.

In this way, in the scalp care apparatus 10, the surgical member 43 can be easily attached to the convex curved surface of the scalp.

In the present embodiment, the eccentric shafts 4552 provided to the two rotating bases 455 are arranged to rotate with a phase difference of 180 degrees. Thus, eccentric shaft 4552 provided to each rotating base 455 rotates closer to or farther away from each other. Thus, the 2 nd surgical member 43 mounted to each eccentric shaft 4552 by means of the slide mount 47 performs a reciprocating linear motion toward or away from each other.

Further, with such a configuration, the structure of the 2 nd surgical unit side gear mechanism 45 for transmitting the drive of the motor (drive source) 235 to the plurality of (two) 2 nd surgical members 43 can be simplified. This makes it possible to reduce the size of the 2 nd surgical unit 40.

In the present embodiment, the second surgical tool 43 is formed by fitting the surgical tool base 423 into the follow-up deformation portion 4213 of the rubber cover 421. That is, in the present embodiment, the 2 nd operation piece 43 is formed by assembling the rubber cover 421 to the operation piece base 423 which is a relatively high rigidity member, and the rubber cover 421 is a member different from the operation piece base 423 and is a relatively low rigidity member.

The 2 nd surgical member 43 includes: a base 431; and an operation protrusion 432 protruding downward from the top surface (lower surface) 431a of the base 431, and the operation protrusion 432 is brought into contact with the scalp when the scalp care apparatus 10 is used.

The base portion 431 is formed by covering the base portion 4231 of the applicator base 423 with a rubber cover 421. The surgical projection 432 is formed by covering the core portion 4232 of the surgical base 423 with the rubber cover 421, and a portion of the rubber cover 421 covering the core portion 4232 serves as an elastic portion 42131. As described above, in the present embodiment, the surgical projection 432 includes the core portion 4232 and the elastic portion 42131 covering the core portion 4232. The core portion 4232 and the elastic portion 42131 are formed of different members.

In the present embodiment, thirteen surgical projections 432 are provided on the two 2 nd surgical members 43, respectively, and three small protruding projections 4322c are provided at the tip portion 4322 of each surgical projection 432.

Next, an example of a method of using the 2 nd operation unit 40 having such a configuration will be described.

First, the user attaches the 2 nd surgical unit 40 to the main body 20 and attaches the 2 nd surgical unit side drive transmission part 452 to the main body side drive transmission part 26. In this state, the user presses the operation switch button 222 to drive the motor 235, thereby rotating the main body side drive transmission unit 26.

In this way, the rotation of the main body side drive transmission part 26 is transmitted to the 2 nd surgical unit side drive transmission part 452, and the 2 nd surgical unit side drive transmission part 452 rotates together with the main body side drive transmission part 26. At this time, the gear portion 4521 and the drive transmission gear 453 of the relay gear 451 attached to the 2 nd surgical unit side drive transmission portion 452 also rotate together with the 2 nd surgical unit side drive transmission portion 452.

Then, the gear portion 4521 and the drive transmission gear 453 are rotated, whereby the two output gears 454 are rotated in a decelerated state.

As the two output gears 454 rotate in this manner, the two rotating bases 455 coupled to the two output gears 454 also rotate.

At this time, eccentric shafts 4552 provided in respective swing bases 455 perform a swing motion along a plane orthogonal to the axial direction of output shaft 4551.

When the eccentric shafts 4552 rotate, the slide base 47 attached to each eccentric shaft 4552 and the No. 2 operation element 43 perform reciprocating linear motion in accordance with the rotation of the eccentric shafts 4552. At this time, the surgical projection 432 provided to each of the 2 nd surgical members 43 also performs a reciprocating linear motion following the reciprocating linear motion of the 2 nd surgical member 43.

In this state, if the operation protrusions 432 are brought into contact with the scalp, the operation protrusions 432 that reciprocate linearly can be used to perform a treatment (scalp treatment) such as washing and massaging the scalp.

An example of the operation of releasing the connection of the accessories in the 2 nd surgical unit will be described below with reference to fig. 58 to 61.

Fig. 58 and 59 show the state of the 2 nd surgical unit 40 when an appropriate load within a predetermined range is applied in the direction of arrow A2. The slide base 47 as a coupling component has at least a pair of 1 st parallel surfaces 4712 and 4712, and the operation piece base 423 as a coupled component has at least a pair of 2 nd parallel surfaces 4231b and 4231b. By inserting the body portion 471 of the slide base 47 into the slide base accommodation portion 4231a of the tool base 423, the slide base 47 is fitted and held between the pair of 2 nd parallel surfaces 4231b, 4231b of the tool base 423. Thus, when an appropriate load within a predetermined range is applied to the surgical projection 432 in the direction of the arrow A2 via the distal end portion 4322, the slide base 47 as a coupling component is held while the pair of 2 nd parallel surfaces 4231b, 4231b of the surgical implement base 423 are restrained from tilting.

Fig. 60 and 61 show a state of the 2 nd operation unit 40 when a load of a predetermined value or more is applied to the operation piece base 423, such as a case where the operation protrusion 432 is in contact with a foreign object. The 1 st metal fitting 41 and the 2 nd metal fitting 42 are engaged by at least 1 set of engaging portions (hooks, hook insertion recesses). When a load of a predetermined value or more is applied to the clip base 423, the 2 nd parallel surface 4231b of the clip base 423 is deformed by flexure, and the holding of the slide base 47 by the pair of 2 nd parallel surfaces 4231b, 4231b can be eliminated. At this time, the operation tool base 423 as a connected component is inclined with the end of the flange portion 4233 as a base point. The opposite end of the flange portion 4233 can push the frame of the 1 st metal fitting 41 and the frame of the 2 nd metal fitting 42 apart from each other, and release the engagement between the 1 st metal fitting 41 and the 2 nd metal fitting 42.

[ example of the mounting Table ]

Next, an example of a mounting table on which the surgical unit is mounted will be described with reference to fig. 62 to 69.

The 1 st mounting table 60 is a mounting table for mounting the 1 st surgical unit 30, and the 1 st surgical unit 30 formed by combining the 1 st component 31 and the 2 nd component 32 can be disposed on the 1 st mounting table 60.

The 2 nd mounting table 70 is a mounting table for mounting the 2 nd surgical unit 40, and is configured such that the 2 nd surgical unit 40, which is a combination of the 1 st component 41 and the 2 nd component 42, can be disposed on the 2 nd mounting table 70.

The operation unit (one of the 1 st operation unit 30 and the 2 nd operation unit 40) disposed on the mounting table can be stacked on another operation unit (the other of the 1 st operation unit 30 and the 2 nd operation unit 40) disposed on another mounting table.

In the present embodiment, the 1 st surgical unit 30 disposed on the 1 st mounting table 60 can be placed on the 2 nd surgical unit 40 disposed on the 2 nd mounting table 70 (see fig. 66).

In the present embodiment, the 2 nd surgical unit 40 disposed on the 2 nd mounting table 70 can be placed on the 1 st surgical unit 30 disposed on the 1 st mounting table 60 (see fig. 67).

That is, in the present embodiment, the order of deposition (vertical arrangement) between the 1 st surgical unit 30 arranged on the 1 st mounting table 60 and the 2 nd surgical unit 40 arranged on the 2 nd mounting table 70 can be switched vertically.

In the present embodiment, as shown in fig. 68 and 69, the 1 st placing table 60 can be placed on the 2 nd surgical unit 40 placed on the 2 nd placing table 70, and the 1 st surgical unit 30 connected to the main body portion 20 can be placed on the 1 st placing table 60.

In the present embodiment, the 2 nd mounting table 70 may be placed on the 1 st surgical unit 30 disposed on the 1 st mounting table 60, and the 2 nd surgical unit 40 coupled to the main body 20 may be disposed on the 2 nd mounting table 70, although this is not shown.

That is, in the present embodiment, any of the surgical units (the 1 st surgical unit 30 and the 2 nd surgical unit 40) may be attached to the main body 20 to store the scalp care apparatus 10 in an assembled state.

[ Effect ]

Hereinafter, the characteristic structure of the scalp care apparatus 10 shown in the above-described embodiment and its modified examples and the effects obtainable thereby will be described.

(1) The scalp care apparatus 10 shown in the above-described embodiment and the modifications thereof includes the main body 20, and the main body 20 includes the cover 21 that houses the motor (drive source) 235 and the battery (power source) 232. The scalp care apparatus 10 further includes surgical units (the 1 st surgical unit 30 and the 2 nd surgical unit 40) that are replaceably attached to and detached from the main body portion 20. The cover 21 includes a cylindrical wall portion (cover main body) 211 formed in a cylindrical shape. The cover 21 includes fastened components (the main body cover 2122 and the bottom plate 213) that are arranged to cover the opening of the cylindrical wall portion 211 and fastened. The housing 21 includes components to be compressed (the upper sealing member 2141 and the lower sealing member 217) which are compressed between the cylindrical wall portion 211 and the components 2122 and 213 to be fastened and which seal the space between the cylindrical wall portion 211 and the components 2122 and 213 to be fastened. The compressed components 2141, 217 have 1 st sealing portions 2141a, 2171 that seal a gap between the inner surface of the cylindrical wall portion 211 and the fastened components 2122, 213. The compressed components 2141 and 217 have 2 nd sealing portions 2142 and 2172 for sealing a fastening portion between the cylindrical wall 211 and the fastened components 2122 and 213. The 1 st sealing parts 2141a, 2171 are formed integrally with the 2 nd sealing parts 2142, 2172.

The scalp care apparatus 10 shown in the present embodiment and the modifications thereof is compressed between the outer cover 21 and the fastened parts (the main body cover 2122, the bottom plate 213) in the vertical direction by the compressed parts 2141, 217, thereby waterproofing the inside of the outer cover 21 of the main body 20. In addition, the 1 st sealing parts 2141a, 2171 are formed integrally with the 2 nd sealing parts 2142, 2172. Thus, the scalp care apparatus 10 can suppress the occurrence of a water-proof failure due to the forgetting to attach the sealing member or the variation in attachment without separately disposing the sealing member at each position.

In this way, the scalp care apparatus 10 according to the above-described embodiment and the modifications thereof can suppress occurrence of poor waterproofing due to forgetting to attach the sealing member or variations in attachment at the fastening portion between the cover main body and the fastened component.

(2) The compressed component (lower sealing member 217A) has a function as a waterproof valve for preventing water from entering the housing 21 and a function as a relief valve for discharging gas generated in the housing 21 to the outside.

In this way, the scalp care apparatus 10 can have the following structure of the main body portion 20: the gas discharge valve exhibits high resistance to pressure from the outside, and when gas or the like is generated inside, the gas is easily discharged.

(3) The main body portion 20 includes a main body side drive transmission portion 26, and the main body side drive transmission portion 26 includes a hexagonal prism-shaped coupling 261. The operation unit (the 1 st operation unit 30, the 2 nd operation unit 40) includes a1 st operation unit side drive transmission part (operation unit side drive transmission part) 352, and the 1 st operation unit side drive transmission part (operation unit side drive transmission part) 352 has a hexagonal insertion hole 3522 into which the coupling 261 is inserted.

In this way, the scalp care apparatus 10 can efficiently transmit the driving force of the motor 235 to the surgical units 30 and 40 attached to the main body portion 20.

(4) The length L1 of the widest portion of the front end surface 2611a of the coupling 261, which intersects the axial direction of the coupling 261, is shorter than the length L2 of the opposite side of the hexagonal insertion hole 3522.

Thus, even if the phase of the coupling 261 of the main body 20 and the phase of the insertion hole 3522 of the surgical units 30 and 40 are shifted, the phases of the coupling 261 and the insertion hole 3522 are corrected during insertion of the scalp care apparatus 10, and the coupling 261 can be easily inserted into the insertion hole 3522.

(5) The diameter R1 of the circle circumscribing the front end surface 2611a of the coupling 261 is less than half the diameter R2 of the circle circumscribing the hexagonal insertion hole 3522. An arc portion 2614 having a radius of curvature equal to or larger than the radius of a circle circumscribing the hexagonal insertion hole 3522 is formed between the front end surface 2611a and the outer surface 2613 of the coupling 261.

Thus, even if the phase of the coupling 261 of the main body 20 and the phase of the insertion hole 3522 of the surgical units 30 and 40 are shifted, the phases of the coupling 261 and the insertion hole 3522 are corrected during insertion of the scalp care apparatus 10, and the coupling 261 can be easily inserted into the insertion hole 3522.

(6) The coupling 261 has a flange 2612 formed at a root-side end portion of the coupling 261. The coupling 261 is configured such that the flange portion 2612 of the coupling 261 is pressed from the distal end portion side of the coupling 261 by the coupling pressing plate 27, and the coupling 261 is held by the housing 21.

Thus, the coupling 261 can be prevented from coming off and the coupling 261 can be held by the cover 21 without interfering with the transmission of the driving force of the motor 235.

(7) An output shaft 246 having a shaft-side D cut surface 2461 at a distal end portion is press-fitted into the coupling 261.

In this way, the scalp care apparatus 10 can mount the 1 st surgical unit side drive transmission unit (surgical unit side drive transmission unit) 352 to the main body side drive transmission unit 26 with the idling being suppressed.

(8) An inner D-cut surface 2615 into which the shaft-side D-cut surface 2461 of the output shaft 246 is fitted is formed in the coupling 261, and an air discharge portion 2615a is formed in the inner D-cut surface 2615 of the coupling 261 so as to discharge air when the output shaft 246 is pressed in.

In this way, the air vent 2615a of the scalp care apparatus 10 functions as an air vent hole when the output shaft 246 is press-fitted into the coupling 261, and the press-fitting operation of the output shaft 246 can be facilitated.

[ others ]

The scalp care device of the present invention has been described above, but the present invention is not limited to these descriptions, and various modifications and improvements can be made.

For example, a scalp care device may be provided in which the configurations described in the above-described embodiment and the modifications thereof are appropriately combined.

In the above embodiment and the modifications thereof, the example in which various surgical units are attached to one type of the main body portion 20 is illustrated, and a plurality of types of main body portions having different motor performance and different battery capacity may be provided. That is, the scalp care apparatus 10 may include a plurality of types of main body units having a common main body side drive transmission unit.

In the above-described embodiment and the modifications thereof, the surgical unit having the surgical member that moves along the plane orthogonal to the axial direction of the output shaft is exemplified, but the surgical unit having the surgical member that moves in the direction intersecting the plane orthogonal to the axial direction of the output shaft may be used. For example, the surgical unit may have a surgical tool that reciprocates in the axial direction of the output shaft, or the surgical unit may have a surgical tool that swings in a direction intersecting a plane orthogonal to the axial direction of the output shaft.

In the above-described embodiment and the modifications thereof, the operation unit having the operation tool which performs the rotational motion along the circle is exemplified, but the operation unit having the operation tool which performs the rotational motion along the ellipse may be used.

The specifications (shape, size, layout, etc.) of the surgical member, surgical projection, and other detailed portions may be changed as appropriate.

(1) That is, the scalp care apparatus has a function of massaging the scalp. In a case housing parts requiring waterproofing, a waterproofing structure required for a screw portion and an inner peripheral portion of a cover is implemented without leakage by screwing and compressing an integrated seal member between a molded article and the cover.

(2) The scalp care apparatus according to the above (1), wherein a scalp washer function is provided to the scalp care apparatus.

(3) The scalp care apparatus according to the above (1) or (2), wherein the water-proof structure of the inner peripheral portion of the cover has both a water-proof valve and a safety valve (relief valve).

Further, the above-described embodiments are intended to exemplify the technique of the present invention, and various modifications, substitutions, additions, omissions, and the like can be made within the scope of the claims and the equivalent thereof.

Industrial applicability

The scalp care apparatus of the present invention is applicable to various scalp care apparatuses including household and business scalp care apparatuses.

Claims (8)

1. A scalp care device, wherein,

the scalp care device is provided with:

a main body having a housing for housing a drive source and a power source; and

an operation unit which is detachably attached to the main body in an exchangeable manner,

the housing includes:

a cover main body formed in a cylindrical shape;

a fastened component which is disposed and fastened so as to cover the opening of the cover main body; and

a compressed component that is compressed between the cover main body and the fastened component to seal between the cover main body and the fastened component,

the compressed component has: a1 st seal portion that seals a gap between an inner surface of the housing main body and the fastened component; and a2 nd sealing portion that seals a fastening portion between the housing main body and the fastened component,

the 1 st seal portion is formed integrally with the 2 nd seal portion.

2. The scalp care device of claim 1, wherein,

the compressed component has a function as a waterproof valve for preventing water from entering the housing and a function as a relief valve for discharging gas generated in the housing to the outside.

3. The scalp care device of claim 1 or 2, wherein,

the main body portion includes a main body side drive transmission portion having a hexagonal prism-shaped coupling,

the surgical unit is provided with a surgical unit-side drive transmission part having a hexagonal insertion hole into which the coupling is inserted.

4. The scalp care device of claim 3, wherein,

the length of the widest part of the front end surface of the coupler, which intersects with the axial direction of the coupler, is shorter than the length of the opposite side of the hexagonal insertion hole.

5. The scalp care device of claim 4, wherein,

the diameter of a circle circumscribing the front end face of the coupling is less than half of the diameter of a circle circumscribing the hexagonal insertion hole,

an arc portion having a radius of curvature equal to or larger than a radius of a circle circumscribing the hexagonal insertion hole is formed between the front end surface and the outer surface of the coupling.

6. A scalp care device according to any one of claims 3 to 5 wherein,

the coupling has a flange portion formed at a root-side end portion of the coupling,

the coupling is configured such that the flange portion of the coupling is pressed from the distal end portion side of the coupling by a coupling pressing plate, and the coupling is held by the housing.

7. A scalp care device according to any one of claims 3 to 6 wherein,

an output shaft having a shaft-side D cut surface at a tip end portion is press-fitted into the coupling.

8. The scalp care device of claim 7, wherein,

an inner D cutting surface for embedding the shaft side D cutting surface of the output shaft is formed on the coupler,

an air discharge portion is formed on the inner D-cut surface of the coupling so as to discharge air when the output shaft is pressed in.

Images