WO2012035980A1 - Scalp care device - Google Patents

Abstract

A scalp care device for applying stimuli to the user's scalp includes: a device main body including a main body housing that houses a drive source for driving output shafts (56); and a massage head part (12) to be attached to the main body housing. The massage head part (12) includes: massage pieces (81a, 81b, 81c, and 81d) that have massage projections (83) and that are driven at least in a direction orthogonal to the output shafts (56) by being driven by the output shafts (56); and a cover part (61) that is flexible so as to be conformable to the motion of the massage pieces and that covers at least the space formed around the massage pieces. The massage pieces (81a-81d) are formed integrally with the cover part (61).

Description

Scalp care equipment

The present invention relates to a scalp care device for applying stimulation by bringing a treatment protrusion into contact with the scalp.

Conventionally, for example, the scalp care device of Patent Document 1 includes a drive source that drives an output shaft, a housing that accommodates the drive source, and a treatment element having a treatment protrusion. The treatment element is connected to the tip of the output shaft protruding from the housing and is driven based on the rotation of the output shaft.

Also, in the scalp care device of Patent Document 1, the treatment element having the treatment protrusion is reciprocated in the extending direction of the treatment protrusion (the axial direction of the output shaft). As a result, the scalp is struck by the treatment process to obtain a scalp care effect (cleaning and massage effect).

JP 2008-206902 A

By the way, in the above scalp care device, a scalp care effect is obtained by hitting the scalp by reciprocating the treatment element in the axial direction of the output shaft by the driving force of the driving source. However, in this configuration, since there is only local stimulation, there is a possibility that it is difficult to apply stimulation to the scalp by the treatment process over a wide area of the scalp.

From such a problem, for example, it is conceivable to expand the range of stimulation applied by the projection by operating the treatment projection in the direction perpendicular to the axis of the output shaft. However, in the scalp care device that operates the treatment protrusion in the direction perpendicular to the axis of the output shaft, there is a concern about an increase in the number of parts and an increase in the number of assembly steps.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a scalp care device capable of suppressing the number of parts and the number of assembly steps.

One aspect of the present invention is a scalp care device that provides stimulation to the user's scalp. The scalp care device includes an apparatus main body including a main body housing that houses a drive source that drives an output shaft, and a treatment head that is assembled to the main body housing. The treatment head portion includes a treatment protrusion, a treatment element that is driven at least in a direction orthogonal to the output shaft based on the drive of the output shaft, and has flexibility that can follow the operation of the treatment element, and at least a treatment operation And a cover portion covering a gap generated around the child. The treatment element is formed integrally with the cover part. According to this structure, the number of parts and the assembly man-hour of a scalp care apparatus can be suppressed.

It is a perspective view of the scalp care apparatus in one Embodiment. It is a top view of the scalp care apparatus of FIG. FIG. 3 is a cross-sectional view of the scalp care device along line AA in FIG. 2. FIG. 3 is a cross-sectional view of the scalp care device along line BB in FIG. 2. FIG. 2 is a partially exploded perspective view of the apparatus main body of FIG. 1. FIG. 2 is a partially exploded perspective view of the apparatus main body of FIG. 1. FIG. 2 is a partially exploded perspective view of the apparatus main body of FIG. 1. It is a disassembled perspective view of the treatment head part of FIG. It is a bottom view of the scalp care apparatus of FIG. It is a bottom view of the apparatus main-body part of FIG. It is a perspective view of the apparatus main-body part of FIG. It is a perspective view which shows the surface side of the treatment head part of FIG. It is a top view which shows the surface side of the treatment head part of FIG. It is a perspective view which shows the back surface side of the treatment head part of FIG. It is a top view which shows the back surface side of the treatment head part of FIG. It is sectional drawing of the treatment head part of FIG. It is sectional drawing of the treatment head part of FIG. It is a perspective view which shows the cover part of FIG. 1, and the back surface side of a treatment element. It is a top view which shows the back surface side of the treatment head part in another example.

Hereinafter, a scalp care device 10 according to an embodiment will be described with reference to the drawings.

FIG. 1 shows an overall perspective view of the scalp care device 10. The scalp care device 10 includes a device main body 11 and a treatment head 12 that is detachably provided on one end side (lower end side) of the device main body 11. In the following description, the vertical direction refers to a direction orthogonal to the horizontal plane when the treatment head portion 12 is directed downward with respect to the apparatus main body portion 11.

As shown in FIGS. 2 and 3, the apparatus body 11 includes a hollow body housing 13. As shown in FIG.3 and FIG.5, the substantially square-shaped 1st opening part is formed in the lower end side of the main body housing 13 to which the treatment head part 12 is attached. In addition, a substantially elliptical second opening having an opening area smaller than that of the first opening is formed on the other end side (upper end side) of the main body housing 13 which is opposite to the first opening.

Further, as shown in FIG. 3, a diameter-reduced portion 13 a having a diameter smaller than that of the first opening and the second opening is provided at an intermediate position in the vertical direction of the main body housing 13. As shown in FIG. 2, the reduced diameter portion 13 a is formed in a substantially elliptical annular shape when viewed in cross section. That is, the main body housing 13 is gradually reduced in diameter from each of the first and second openings to the reduced diameter portion 13a. Incidentally, the reduced diameter portion 13a is formed at a position closer to the second opening as shown in FIG.

As shown in FIG. 3, an intermediate wall portion 13 b extending in a direction perpendicular to the vertical direction is formed inside the reduced diameter portion 13 a in order to improve the strength of the main body housing 13. The intermediate wall portion 13b is formed with a through hole (not shown) penetrating the intermediate wall portion 13b in the vertical direction. The inside of the main body housing 13 communicates in the vertical direction via the through hole of the intermediate wall portion 13b.

As shown in FIG. 3, the second opening on the upper end side of the main body housing 13 is closed by a cover member 21 having a substantially elliptical dome shape. The cover member 21 has one large-diameter through hole 21a penetrating the cover member 21 in the vertical direction, three small-diameter through holes 21b penetrating in the vertical direction, and the longitudinal direction of the cover member 21 (FIG. 3). In the horizontal direction).

As shown in FIG. 3, a switch operating member 22 having a slightly smaller diameter than the through hole 21a is provided in the large diameter through hole 21a so as to be movable in the vertical direction. The switch operation member 22 includes a pressing convex portion 22a that is integrally formed with the switch operation member 22 and extends downward. As shown in FIGS. 3 and 5, the pressing convex portion 22 a can press a switch 24 a (for example, a tact switch (registered trademark)) formed on the switch side substrate 24 from above. The switch side substrate 24 is sandwiched between the switch side base 23 accommodated in the main body housing 13 and the main body housing 13.

As shown in FIG. 5, the switch-side base 23 is fixed to the main body housing 13 with two screws 25 into which O-rings 25 a are press-fitted, with the switch-side substrate 24 sandwiched between the switch-side base 23 and the main body housing 13. Has been. An O-ring 23 b is press-fitted into the outer peripheral edge of the switch side base 23. The O-ring 23 b closes the gap between the inner side surface of the main body housing 13 and the outer edge portion of the switch-side base 23 and prevents water and the like from entering the main body housing 13.

As shown in FIG. 3, an LED cover 27 that guides light output from an LED (Light Emitting Diode) 26 is provided inside the small-diameter through hole 21b. The LED 26 is provided on the switch side substrate 24 at a position facing each through hole 21b.

Further, as shown in FIG. 5, the switch side base 23 is formed with a through hole 23 a penetrating the switch side base 23 in the vertical direction. The through hole 23 a is closed by a substantially disc-shaped seal rubber member 28. A concave portion is formed in the seal rubber member 28, and a pressing convex portion 22a of the switch operating member 22 that presses the switch 24a is fitted into the concave portion. Therefore, when the switch operating member 22 is pressed by the user from the outside, the seal rubber member 28 is elastically deformed and the switch 24a is operated. At this time, the seal rubber member 28 closing the through hole 23 a prevents water and the like from entering the main body housing 13.

Further, a substantially flat motor base 30 is accommodated inside the main body housing 13 on the lower side of the intermediate wall portion 13b. A gear base 40 is disposed on the lower surface side of the motor base 30. The gear base 40 is fixed to the main body housing 13 with a plurality of screws 31 inserted from below with the motor base 30 being sandwiched between the main body housing 13 and the gear base 40.

Further, as shown in FIG. 5, a motor support portion 30a having two side walls is formed at a substantially central portion of the upper surface of the motor base 30. The motor support 30a supports a motor 32 as a drive source.

Further, as shown in FIG. 5, a storage battery 33 for supplying power to the motor 32 is sandwiched between the battery fixing member 34 and the motor base 30. Moreover, as shown in FIG. 6, the both ends of the substantially cylindrical storage battery 33 are inserted into the motor base 30 from the lower surface side of the motor base 30, and anodes made of metal members (conductors), respectively. The metal fitting 34a and the cathode metal fitting 34b are electrically connected. These metal fittings 34 a and 34 b are electrically connected to a control circuit of the main body side substrate 35 accommodated in the main body housing 13.

Here, one terminal of the motor 32 is electrically connected to a substantially L-shaped motor fitting 34c provided on the motor base 30 via a lead wire (not shown). The other terminal of the motor 32 is electrically connected to the control circuit of the main body side substrate 35 via a lead wire (not shown). The motor bracket 34c is pressed upward by a lever member 36a biased downward by a spring member 36b, and is electrically and mechanically connected to a lever bracket 34d electrically connected to the control circuit of the main body side substrate 35. It is connected to the. Accordingly, the electric power of the storage battery 33 is supplied to the motor 32 via the metal fittings 34a to 34d, the lead wires, and the control circuit. As shown in FIGS. 3 and 6, the spring member 36b is externally inserted into the lever member 36a. The lever member 36 a has a hook portion that fits into a support portion 40 f formed of two curved wall portions provided on the gear base 40, and is inserted through the gear base 40 and the motor base 30, respectively. It is inserted through the hole. The spring member 36b presses the lever member 36a downward by being pressed between the lever member 36a and the gear base 40.

As shown in FIG. 5, the main body side board 35 is electrically connected to the switch side board 24 by connecting a connector member 37 b having a plurality of lead wires 37 a to a connector mounting portion 24 b provided on the lower surface side of the switch side board 24. Various electrical signals are bidirectionally transmitted between the main body side substrate 35 and the switch side substrate 24. As a signal transmitted to the control circuit on each of the substrates 24 and 35 via the lead wire 37a, for example, a signal indicating the on / off state of the switch 24a or a signal indicating the driving force (rotation speed) of the motor 32 is used. is there. The lead wire 37a is also used to transmit power for driving the LED 26.

The storage battery 33 can be charged by being electrically connected to an external power source (for example, a commercial power source). At the side edge of the motor base 30, a mounting recess 30 b is formed in a concave shape on the center side of the motor base 30. The recess 30b is provided with a plug base 38b integrally including a plurality of plug terminals 38a for connection to an external power source. The plug terminal 38 a is exposed to the outside through an insertion hole (not shown) formed in the side surface of the main body housing 13. By connecting the cable C having a connector to the plug terminal 38a, the storage battery 33 can be charged via the control circuit of the main body side substrate 35 and the metal fittings 34a and 34b. Each plug terminal 38a is provided with an O-ring 38c. These O-rings 38c prevent water from entering the main body housing 13 through the insertion hole of the main body housing 13 in which the plug terminals 38a are disposed.

As shown in FIG. 6, the driving force of the motor 32 is transmitted to the treatment head unit 12 through a plurality of gears 32b, 41 to 45, 46a to 46d. The plurality of gears reduce the driving force of the motor 32 and improve the torque transmitted to the treatment head unit 12.

The motor 32 includes a motor shaft 32a (output shaft). The motor shaft 32a is inserted through a through-hole 30c that penetrates substantially the center of the motor base 30 in the vertical direction. In this state, a pinion gear 32b is fixed to the tip of the motor shaft 32a so as to be integrally rotatable. The pinion gear 32 b is meshed with a large-diameter gear portion 41 a of the first transmission gear 41 that can rotate around a shaft 40 a that is press-fitted and fixed to the gear base 40.

The first transmission gear 41 is integrally formed with a small-diameter gear portion 41b having a smaller diameter than the large-diameter gear portion 41a. The small-diameter gear portion 41b meshes with the large-diameter gear portion 42a of the second transmission gear 42 that can rotate around a shaft 40b that is press-fitted and fixed to the gear base 40. The large diameter gear portion 42 a of the second transmission gear 42 has a larger diameter than the small diameter gear portion 41 b of the first transmission gear 41.

The large-diameter gear portion 42a of the second transmission gear 42 is meshed with the large-diameter gear portion 43a of the third transmission gear 43 that can rotate around a shaft 40c that is press-fitted and fixed to the gear base 40. The third transmission gear 43 has substantially the same shape and size as the second transmission gear 42. The second transmission gear 42 includes a small diameter gear portion 42b formed integrally with the large diameter gear portion 42a. Similarly, the third transmission gear 43 includes a small diameter gear portion 43b formed integrally with the large diameter gear portion 43a.

The small-diameter gear portion 42b of the second transmission gear 42 is meshed with the large-diameter gear portion 44a of the fourth transmission gear 44 that can rotate around a shaft 40d that is press-fitted and fixed to the gear base 40. The large diameter gear portion 44 a of the fourth transmission gear 44 has a larger diameter than the small diameter gear portion 42 b of the second transmission gear 42. The small-diameter gear portion 43b of the third transmission gear 43 is meshed with the large-diameter gear portion 45a of the fifth transmission gear 45 that can rotate around a shaft 40e that is press-fitted and fixed to the gear base 40. The large diameter gear portion 45 a of the fifth transmission gear 45 has a larger diameter than the small diameter gear portion 43 b of the third transmission gear 43. The fifth transmission gear 45 has substantially the same shape and size as the fourth transmission gear 44.

The fourth transmission gear 44 includes a small diameter gear portion 44b formed integrally with the large diameter gear portion 44a. Similarly, the fifth transmission gear 45 includes a small diameter gear portion 45b formed integrally with the large diameter gear portion 45a. The small diameter gear portion 44b of the fourth transmission gear 44 is meshed with the two final gears 46a and 46b. The small diameter gear portion 45b of the fifth transmission gear 45 is meshed with the two final gears 46c and 46d. A connecting shaft 47 is fixed at approximately the center position in the radial direction of each of the final gears 46a to 46d by press-fitting or insert molding. Accordingly, the final gears 46a to 46d rotate integrally with the connecting shaft 47, respectively.

As shown in FIGS. 4, 6, and 7, each connecting shaft 47 is provided with two bearings 48 that rotatably support each connecting shaft 47 at a predetermined interval in the axial direction (vertical direction). ing. As shown in FIGS. 3, 4, and 7, the distal end portion 47 a (lower end side) of each connecting shaft 47 is attached to the insertion hole 50 b formed in the waterproof base 50 and the bottom portion 50 a of the waterproof base 50. It is inserted through an insertion hole 51a formed in the holding plate 51 to be formed. In addition, an O-ring 52 is attached to each connecting shaft 47 between the waterproof base 50 and the pressing plate 51. The O-ring 52 prevents water or the like from entering the body housing 13 through the insertion hole 50 b of the waterproof base 50.

The waterproof base 50 has a shape slightly smaller than the substantially square-shaped first opening formed on the lower end side of the main body housing 13. The waterproof base 50 is attached to the main body housing 13 with the seal member 53 attached to the outer peripheral edge of the waterproof base 50. The seal member 53 is elastically deformed between the outer peripheral edge of the waterproof base 50 and the inner peripheral surface of the main body housing 13 to close the gap between them, and water or the like enters the main body housing 13. To prevent.

The pressing plate 51 is formed of a metal plate-like member having substantially the same shape as the bottom portion 50a of the waterproof base 50. The holding plate 51 and the waterproof base 50 are fixed to the main body housing 13 with a plurality of (four in this embodiment) screws 54. The screw 54 is provided with an O-ring 54 a between the pressing plate 51 and the waterproof base 50. The O-ring 54 a prevents water and the like from entering the inside of the main body housing 13 through the waterproof base 50.

As shown in FIG. 7, the distal end portion 47 a of each connecting shaft 47 has a D-cut shape, and is attached to the rotating base 55. As shown in FIGS. 10 to 11, the rotary base 55 includes a base part 55a having a substantially disc shape, a first connecting part 55b, and a second connecting part 55c. The first connecting portion 55b is provided at a position shifted radially outward from the radial center of the base portion 55a, and is formed so as to protrude downward. The 2nd connection part 55c is provided in the radial direction approximate center of the base part 55a.

The front end portion 47 a of the connecting shaft 47 is inserted into the first connecting portion 55 b of the rotary base 55. An output shaft 56 is press-fitted and fixed to the second connecting portion 55 c of the rotation base 55. For this reason, the output shaft 56 rotates around the corresponding connecting shaft 47 at a position shifted from the center of each final gear 46a to 46d.

The treatment head portion 12 is detachably provided on the apparatus main body portion 11 configured as described above. The treatment head portion 12 includes a cover portion 61 that closes a substantially rectangular first opening formed on the lower end side of the main body housing 13, and treatment elements 81a to 81d that are driven by the driving force of the motor 32. Including.

As shown in FIGS. 8, 12 and 13, the cover 61 is made of a flexible member such as an elastomer. Further, the area of the cover portion 61 is set to be approximately the same as the area of the substantially rectangular first opening of the main body housing 13.

The cover base 61 is attached with a head base 62 as a frame body made of a material harder than the cover 61. The head base portion 62 includes an outer frame portion 63 and four crosspieces 64. The outer frame portion 63 is formed following the shape of the outer peripheral edge portion 61a of the cover portion 61, and is attached to the inner peripheral surface of the outer peripheral edge portion 61a. Each crosspiece 64 extends from the approximate center of each side of the outer frame 63 toward the center of the head base 62. The four crosspieces 64 are connected to each other at the center of the head base 62.

The outer frame portion 63 includes an engaging portion 63a extending toward the waterproof base 50 (upper side). The engaging portion 63a has a distal end portion extending outward, and is engaged with the waterproof base 50 by snap fit engagement.

Further, the outer frame portion 63 includes an extending portion 63b extending outward (side) from a substantially central portion of each side. The extending part 63b is fitted into a through-hole 61b that penetrates to the side and is provided substantially at the center of each side of the outer peripheral edge part 61a of the cover part 61. Thus, by attaching the head base portion 62 that is harder than the cover portion 61, that is, having higher rigidity, to the cover portion 61, the cover portion 61 can be easily attached to the apparatus main body portion 11 by the hard head base portion 62. . Thereby, the treatment head part 12 can be easily attached to the apparatus main body part 11.

The four crosspieces 64 are connected to each other by a central connecting part 65 provided at the central part of the outer frame part 63. A rib portion 64 a for improving the strength of the crosspiece 64 is provided on the lower surface side of each crosspiece 64. Each crosspiece 64 is formed with a columnar protrusion 64b extending upward from the central upper surface of the corresponding rib 64a. These four protrusions 64b are provided at substantially the same distance from the center of the head base 62 (central connecting portion 65) at an interval of approximately 90 degrees in the circumferential direction. One of the protrusions 64b comes into contact with the lower end of the lever member 36a that can move a predetermined amount in the vertical direction (axial direction) in a state where the treatment head 12 is attached to the apparatus main body 11. ing.

A substantially cylindrical engaging portion 65 a is formed on the lower surface side of the central connecting portion 65. The engaging portion 65a is engaged with a protrusion 61c formed at a substantially central portion of the cover portion 61 to prevent the cover portion 61 from coming off (see FIG. 3).

As shown in FIG. 8, on the upper surface side of the central connecting portion 65, a support device 66 for restricting the movement of the surgical elements 81a to 81d in the vertical direction is provided. The support device 66 includes an engaging portion 67 attached to the central connecting portion 65, and four substantially flat connecting members 68 respectively connected to the treatment elements 81a to 81d. These connecting members 68 are restricted from moving in the vertical direction by the engaging portion 67.

On the lower surface side of the engaging portion 67, four engaging convex portions 67a connected to the central coupling portion 65 of the head base portion 62 are provided. Further, as shown in FIG. 14, the engaging portion 67 includes four side surfaces facing in a direction orthogonal to the vertical direction. A plurality of insertion holes 69 are provided at different positions in the vertical direction on each side surface of the engaging portion 67. In the present embodiment, four insertion holes 69 are provided on each side surface of the engaging portion 67. That is, the engaging portion 67 has 16 insertion holes 69.

As shown in FIGS. 8 and 14, the base end portion of each connecting member 68 is inserted into one of four insertion holes 69 provided on one side surface of the engaging portion 67. Accordingly, one connecting member 68 is disposed on each side surface of the engaging portion 67. At this time, each connecting member 68 is inserted through insertion holes 69 located at different positions in the vertical direction. That is, the base end portions of the four connecting members 68 are disposed so as to overlap each other inside the engaging portion 67 when viewed in the vertical direction. Thereby, it can suppress now that the size of the treatment head part 12 (as a result, scalp care apparatus 10) becomes large in the direction orthogonal to an up-down direction as much as possible.

A curved engagement portion 70 formed in a bifurcated curved shape (substantially U-shaped in the present embodiment) is formed at the distal end portion of each connecting member 68. As shown in FIGS. 14 and 15, each bending engagement portion 70 is engaged with a groove portion 72 formed on the outer peripheral surface of the proximal end of the substantially cylindrical surgical element base 71. As a result, the movement of the connecting member 68 in the axial direction (vertical direction) of the treatment element base 71 is restricted.

As shown in FIG. 15, each treatment element base 71 includes an insertion recess 71b into which the output shaft 56 (FIG. 8) is inserted. As shown in FIG.16 and FIG.17, this insertion recessed part 71b has the taper surface 71c diameter-expanded toward the up-down direction upper side. The tapered surface 71c allows the output shaft 56 provided on the rotary base 55 to be easily fitted into the fitting recess 71b, and improves the ease of mounting of the output shaft 56.

As shown in FIG. 8, surgical elements 81a to 81d are assembled on the output side (the lower side in the vertical direction) of each surgical element base 71. The surgical elements 81 a to 81 d are formed integrally with the cover portion 61. That is, the surgical elements 81a to 81d are made of a flexible member such as an elastomer, like the cover portion 61. As shown in FIG. 12, each of the treatment elements 81a to 81d includes a bottomed cylindrical treatment element base portion 82 to which the treatment element base 71 is attached, and a plurality of extensions extending downward from the lower surface of the treatment element base portion 82. The treatment protrusion 83 is provided. As shown in FIGS. 16 and 17, three smaller diameter projections 83 a are formed at the distal ends of the treatment projections 83.

As shown in FIG. 18, each surgical element base portion 82 is provided with a fitting convex portion 82a. The fitting projection 82 a is fitted into a plurality of recesses 71 d (see FIG. 8) formed on the distal end side of the treatment element base 71. The fitting convex portion 82a is formed by filling the mold with resin members constituting the cover portion 61 and the treatment elements 81a to 81d in a state where the treatment element base 71 is arranged in the mold. It is formed to have a shape that follows the recess 71d of 71. That is, the cover portion 61 and the treatment elements 81a to 81d are integrally formed with the treatment element base 71 by two-color molding.

As shown in FIGS. 13 and 16 to 18, the cover portion 61 includes a follow-up deforming portion 61d provided around each surgical element base portion 82. The follower deforming portion 61d has a concave shape in a direction opposite to the direction in which the treatment protrusion 83 extends, and can be elastically deformed in a direction perpendicular to the vertical direction (direction in which the treatment protrusion 83 extends). For this reason, even if the surgical element base 82 moves in the direction orthogonal to the vertical direction by the surgical element base 71, the follower deforming part 61d allows the operation element base part 82 to operate. That is, the follower deforming portion 61d is elastically deformed so as to follow the operation of each of the surgical elements 81a to 81d. The follow-up deforming portion 61d may have a bellows shape.

In the scalp care device 10 configured as described above, when the switch operating member 22 is pressed by the user and the switch 24a is turned on, the motor 32 is driven to rotate the surgical elements 81a to 81d. Specifically, the driving force of the motor 32 is transmitted through the gears 41 to 46, and the treatment elements 81 a to 81 d of the treatment head section 12 rotate around each connecting shaft 47. When the treatment protrusions 83 of the treatment elements 81a to 81d are brought into contact with the scalp, the user's scalp is moved in accordance with the movement of the treatment protrusion 83. As a result, the scalp is cared for (massaged). At this time, the surgical elements 81a to 81d operate so as to move the scalp in one direction from the operation of the gears 41 to 46 and the arrangement relationship of the rotation base 55.

Here, the rotation operation of each of the surgical elements 81a to 81d provided in the scalp care device 10 will be described in detail mainly with reference to FIG. In addition, FIG. 9 shows a plan view when the scalp care device 10 is viewed from below. 9, the direction orthogonal to the paper plane corresponds to the vertical direction, and the horizontal direction in FIG. 9 will be described as the horizontal direction of the scalp care device 10, and the vertical direction in FIG. 9 will be described as the front and back direction of the scalp care device 10.

As shown in FIG. 9 and FIG. 10, the four connecting shafts 47 are arranged at the apex positions of substantially squares in plan view. Each of the surgical elements 81a to 81d is connected to the corresponding connecting shaft 47 via the rotation base 55, the output shaft 56, and the surgical element base 71 (FIG. 8). As shown in FIG. 9, the treatment elements 81a and 81b adjacent in the front-rear direction rotate counterclockwise. At this time, in the treatment elements 81a and 81b, the center P1 (output shaft 56) of the treatment element base portion 82 of the treatment element 81a and the center P2 (output shaft 56) of the treatment element base portion 82 of the treatment element 81b are 180 mutually. Rotate to have a phase shift of degrees. On the other hand, the surgical elements 81c and 81d rotate clockwise. Similarly, in the treatment elements 81c and 81d, the center P3 (output shaft 56) of the treatment element base portion 82 of the treatment element 81c and the center P4 (output shaft 56) of the treatment element base portion 82 of the treatment element 81d are mutually connected. Rotate to have a phase shift of 180 degrees. Therefore, the surgical elements 81a and 81c (surgical elements 81b and 81d) adjacent in the left-right direction have their centers P1 and P3 (centers P2 and P4) symmetrical with respect to the perpendicular bisector L. Rotate.

In such a configuration, when each of the surgical elements 81a to 81d rotates 270 degrees in the direction of the arrow from the position shown in FIG. 9, the centers P1 and P3 of the surgical elements 81a and 81c and the centers P2 and P2 of the surgical elements 81b and 81d It will be in the state which P4 leaves most in the front-back direction. When the surgical elements 81a to 81d are rotated 90 degrees from this state, the surgical elements 81a and 81c are closest to each other in the left-right direction, as shown in FIG. Thereby, the operation | movement which pinches the scalp between the treatment protrusions 83 of the treatment element 81a, 81c is implemented. At this time, the scalp sandwiched between the surgical elements 81a and 81c moves along the rotation direction of the surgical elements 81a and 81c.

Then, when each of the surgical elements 81a to 81d rotates 90 degrees, the centers P1 and P2 of the surgical elements 81a and 81b rotating in the same direction come closest to each other at the same timing. At this time, when viewed locally, the surgical elements 81a and 81b orbit so as to pass each other at positions close to each other. Accordingly, the surgical elements 81a and 81b pinch the scalp when approaching at the same timing, and impart a twisting motion to the scalp when passing each other. In this way, by bringing the surgical elements 81a and 81b for pinching and twisting the scalp into contact with the scalp, the scalp of the user is effectively moved in accordance with the movement of the surgical elements 81a and 81b, and care (massage) Is done. In addition, in the surgical elements 81c and 81d, similarly to the surgical elements 81a and 81b, an operation for pinching and twisting the scalp is performed.

Then, when each of the surgical elements 81a to 81d is rotated 90 degrees (rotated 180 degrees from the state shown in FIG. 9), the surgical elements 81b and 81d are closest to each other in the left and right direction, and a scalp is sandwiched between them. I do. That is, an operation for pinching the scalp between the treatment protrusions 83 of the treatment elements 81a and 81c is performed. At this time, as described above, the scalp sandwiched between the surgical elements 81a and 81c moves to the surgical elements 81b and 81d by the operation of the surgical elements 81a and 81c. Accordingly, the surgical elements 81b and 81d perform the user's scalp motion continuously following the motion of the surgical elements 81a and 81c.

As described above, in the example shown in FIG. 9, different types of movement can be given to the scalp according to the rotation angle of each of the surgical elements 81a to 81d (centers P1 to P4). It can contribute to the improvement of care effect.

In the scalp care device 10 configured as described above, the surgical elements 81a to 81d are integrally formed with the cover portion 61 as described above. Therefore, the number of parts and the number of assembling steps can be reduced as compared with the case where the surgical elements 81a to 81d are separate from the cover portion 61.

The cover portion 61 includes a follow-up deforming portion 61d provided around each of the surgical elements 81a to 81d and projecting in a direction opposite to the protruding direction of the surgical protrusion 83. The follow-up deforming portion 61d has flexibility and elastically deforms following the operation of each of the treatment elements 81a to 81d. Thereby, the flexibility of the cover part 61 can be improved more and the load concerning the cover part 61 can be reduced. Further, it is possible to reduce the power consumption by reducing the load applied to the output shaft 56 during the operation of the treatment protrusion 83 (the treatment elements 81a to 81d).

Further, a head base 62 having a higher rigidity than the cover 61 is connected to the outer peripheral edge 61 a of the cover 61. Thereby, the rigidity of the outer periphery 61a of the cover part 61 can be improved. For this reason, the flexibility of the periphery of the treatment elements 81a to 81d by the cover portion 61 (following deformation portion 61d) can be maintained while sufficiently increasing the strength of the cover portion 61 when the treatment head portion 12 is attached. It has become.

Further, the head base portion 62 is provided with a plurality of crosspieces 64 that connect between the outer frame portions 63 of the head base portion 62. For this reason, the rigidity of the head base 62 can be improved. Thereby, the treatment head part 12 can be easily attached to and detached from the apparatus main body part 11. Further, since the cylindrical engaging portion 65a provided on the crosspiece 64 and the projection 61b of the cover portion 61 are connected, it is possible to prevent the cover portion 61 from being lifted up and down with respect to the head base portion 62. it can. Therefore, the surgical elements 81a to 81d can be stably operated.

Further, a treatment element base 71 having higher rigidity than each of the treatment elements 81a to 81d (treatment protrusion 83) is provided on the back side (upward and downward direction) of the treatment element base portion 82 of each of the treatment elements 81a to 81d. Yes. Thereby, the driving force of each output shaft 56 can be suitably transmitted to the surgical elements 81a to 81d via the highly rigid surgical element base 71. Further, compared to the case where the surgical elements 81a to 81d and the output shaft 56 are directly connected, since the highly rigid surgical element base 71 is interposed, it is possible to suppress the life reduction due to wear or the like.

Furthermore, the treatment elements 81a to 81d include a fitting convex part 82a as an engagement part that engages with the treatment element base 71 in at least the operation direction of the treatment elements 81a to 81d. This makes it possible to more reliably connect the surgical elements 81a to 81d and the surgical element base 71. As a result, the rigidity of the treatment elements 81a to 81d (treatment protrusion 83) on the proximal end side can be increased, and the shape of the treatment elements 81a to 81d (treatment protrusion 83) can be suitably maintained. Therefore, a more stable treatment feeling (massage feeling) can be given to the user.

Next, this embodiment has the following advantages.

(1) Since the surgical elements 81a to 81d are formed integrally with the cover part 61, the number of parts and the number of assembling steps can be reduced as compared with the case where the surgical elements 81a to 81d are separate from the cover part 61. . Further, since the cover portion 61 and the treatment elements 81a to 81d are integrally formed, the hair or the like is contained in the main body housing 13 (apparatus main body portion) compared to the case where the cover portion 61 and the treatment elements 81a to 81d are separate. 11) Intrusion can be suppressed.

(2) The cover portion 61 is provided around each of the surgical elements 81a to 81d, and includes a follow-up deforming portion 61d that protrudes in a direction opposite to the protruding direction of the surgical protrusion 83. The follow-up deforming portion 61d has flexibility and elastically deforms following the operation of each of the treatment elements 81a to 81d. For this reason, the flexibility of the cover part 61 can be improved more.

(3) A head base 62 having higher rigidity than the cover 61 is connected to the outer peripheral edge 61 a of the cover 61. Thereby, the rigidity of the outer periphery 61a of the cover part 61 can be improved. Therefore, it is possible to maintain the flexibility around the surgical elements 81a to 81d by the cover part 61 (following deformation part 61d) while sufficiently increasing the strength of the cover part 61 when the surgical head part 12 is attached.

(4) The head base portion 62 is provided with a crosspiece 64 that connects between the outer frame portions 63 of the head base portion 62. For this reason, the rigidity of the head base 62 can be improved.

(5) Since the cylindrical engaging portion 65a provided on the crosspiece 64 and the projection 61b of the cover portion 61 are connected, the cover portion 61 is prevented from floating in the vertical direction with respect to the head base portion 62. Can do. Accordingly, the surgical elements 81a to 81d can be stably operated.

(6) A treatment element base 71 having higher rigidity than each of the treatment elements 81a to 81d (treatment protrusion 83) is provided on the back side (upward and downward direction) of the treatment element base portion 82 of the treatment elements 81a to 81d. ing. Thereby, the driving force of each output shaft 56 can be suitably transmitted to the surgical elements 81a to 81d via the highly rigid surgical element base 71.

(7) The surgical elements 81a to 81d include a fitting convex part 82a as an engaging part that engages with the surgical element base 71 in at least the operation direction of the surgical elements 81a to 81d. Therefore, the treatment elements 81a to 81d and the treatment element base 71 can be more reliably connected.

(8) The proximal inner peripheral surface of the treatment element base 71 connected to the output shaft 56 is formed as a tapered surface 71c. For this reason, when connecting with the output shaft 56, the output shaft 56 can be guided to the center of the insertion recessed part 71b by the taper surface 71c. Thereby, the output shaft 56 and the treatment element base 71 can be easily connected.

The above embodiment may be modified as follows.

In the above embodiment, the fitting convex portion 82a of the surgical element base portion 82 is configured to engage with the concave portion 71d of the surgical element base 71 in the axis orthogonal direction that is the operation direction of the surgical elements 81a to 81d. However, it is not limited to this. For example, the configuration may be such that the surgical element base 71 is press-fitted into the concave surgical element base portion 82. In this case, the fitting convex part 82a and the concave part 71d can be omitted.

In the above embodiment, the fitting convex portion 82a of the surgical element base portion 82 is configured to engage with the concave portion 71d of the surgical element base 71 in the axis orthogonal direction that is the operation direction of the surgical elements 81a to 81d. However, it may be configured to engage in other directions in addition to the direction perpendicular to the axis.

In the above embodiment, the surgical element base 71 and the surgical elements 81a to 81d are integrally formed by two-color molding, but the present invention is not limited to this.

In the above embodiment, the tapered surface 71c is provided to guide the output shaft 56 when the output shaft 56 is connected to the treatment element base 71. However, the tapered surface 71c may be omitted. In other words, the fitting recess 71 b may have a bottomed cylindrical shape following the output shaft 56.

In the above embodiment, the engaging portion 65a that is a part of the crosspiece 64 of the head base portion 62 and the protruding portion 61b of the cover portion 61 are connected, but the engaging portion 65a and the protruding portion 61b are omitted. And you may employ | adopt the structure which does not connect them.

In the above embodiment, the head base portion 62 is connected to the outer frame portion 63 of the head base portion 62 by the crosspiece 64. However, a configuration in which the crosspiece 64 is omitted may be adopted.

In the above embodiment, the output shaft 56 is eccentric about the connection shaft 47 at a position where the connection shaft 47 and the output shaft 56 are displaced in the direction perpendicular to the axis (plane direction). The output shaft 56 may be coaxially rotated. In this case, the surgical elements 81a to 81d rotate around the centers P1 to P4, respectively, so that the surgical elements 81a to 81d and the cover portion 61 are preferably separate.

Alternatively, a configuration in which the surgical elements 81a to 81d are simply reciprocated in the direction perpendicular to the axis may be employed. As shown in FIG. 19, such a configuration can be realized by making the insertion recess 71b into which the output shaft 56 is fitted into an elongated hole shape that is long in one direction in the direction perpendicular to the axis. That is, when connecting with the output shaft 56, the output shaft 56 can be moved in one of the axis orthogonal directions within the treatment element base 71 (insertion recess 71b). With such a configuration, the driving force of the output shaft 56 is transmitted to the surgical elements 81a to 81d in the short direction of the long hole shape, so that the surgical elements 81a to 81d move in the short direction of the long hole shape. It will be reciprocated.

In the above embodiment, the cover portion 61 and the treatment elements 81a to 81d constituting the treatment head portion 12 are integrally formed with a flexible member, but a separate structure may be employed. However, it is desirable that the treatment projections 83 of the treatment elements 81a to 81d are formed of a flexible member (elastic member) in any configuration.

In the above embodiment, four surgical elements 81a to 81d are provided, but the number may be arbitrarily changed. Further, although four treatment protrusions 83 constituting the treatment elements 81a to 81d are provided, the number thereof may be arbitrarily changed. For example, the number of the treatment protrusions 83 is different in each of the treatment elements 81a to 81d. May be. Furthermore, although it was set as the structure which provided three small diameter protrusion 83a in the front-end | tip of each treatment protrusion 83, the number may change arbitrarily, for example, the number of protrusion 83a in each treatment protrusion 83 may differ.

Claims (7)

A scalp care device for applying stimulation to a user's scalp,
An apparatus main body including a main body housing for storing a drive source for driving the output shaft;
A treatment head part assembled to the main body housing, the treatment head part,
A treatment element including a treatment protrusion and driven at least in a direction orthogonal to the output shaft based on driving of the output shaft;
And having a flexibility capable of following the operation of the surgical element, and including at least a cover portion covering a gap generated around the surgical element,
The scalp care device, wherein the surgical element is formed integrally with the cover part. The scalp care device according to claim 1,
The cover part includes a follow-up deformation part that can follow the operation of the surgical element around the surgical element,
The scalp care device, wherein the follow-up deforming portion is configured to bend so as to protrude at least in a direction opposite to the protruding direction of the treatment protrusion. The scalp care device according to claim 1 or 2,
The treatment head is further
The frame has a rigidity higher than that of the cover, and includes a frame body connected to an outer peripheral edge of the cover.
The scalp care device, wherein the treatment head portion is connected to the device main body portion via the frame body portion. The scalp care device according to claim 3,
The scalp care device, wherein the frame part includes a peripheral part and a crosspiece connecting the peripheral part. The scalp care device according to claim 4,
A scalp care device characterized in that a part of the crosspiece of the frame body and the cover are connected. In the scalp care device according to any one of claims 1 to 5,
The treatment head is further
Including a base having higher rigidity than the surgical element,
The scalp care device, wherein the surgical element is connected to the output shaft via the base. The scalp care device according to claim 6,
The scalp care device includes an engaging portion that engages at least the operating direction of the base and the surgical element.

Images