JP5381370B2 - Electric brush device - Google Patents

Description

  The present invention relates to an electric brush device, and more particularly to an electric brush device that can be used for scalp washing, massage, and the like.

  Conventionally, this type of electric brush device has a drive unit and a treatment unit (corresponding to the brush unit of the present invention) operated by this drive unit, and the drive unit has a peripheral edge of the substrate of the treatment unit. And a reciprocating driving means for bending the substrate in a direction intersecting the surface of the substrate by connecting to the center of the substrate. There is known a massage apparatus in which the treatment portion is composed of the substrate made of a flexible material and a plurality of protrusions provided to protrude from the substrate. And in this massage device, the user holds the drive unit, presses the tip of the projection against the scalp and holds it by hand, and flexes the substrate of the treatment unit by the reciprocating drive means, As the plurality of protrusions provided on the substrate are repeatedly tilted and raised, the scalp is squeezed, rubbed and struck by the mutual opening and closing protrusions. Can be massaged complexly. As shown in FIG. 8 and FIG. 9, the treatment unit 102 driven by the drive unit 101 is deformed between a curved convex state where the substrate 103 is bent downward and a curved concave state where the substrate 103 is bent upward. When repeating, the plurality of types of protrusions 104 and 105 arranged from the center side to the peripheral side move along with the bending of the substrate 103, so that the scalp S is pressed against the scalp S by the protrusions 104 and 105 pressed against the scalp S. The outer periphery of the substrate 103 is attached to the frame body 106. Further, for example, for hair washing, between the substrate 103 and the stretchable cover body 107 thereabove. A shampoo container 108 is provided. The container 108 is made of a synthetic sponge or sponge (natural sponge) made of an open-cell foamed polyurethane or foamed rubber, which is an elastic body. As shown in FIG. 8, when the substrate 103 is bent and bent downward, the container 108 is almost uncompressed or slightly compressed. On the other hand, as shown in FIG. The container 108 is in a compressed state when 103 is bent upward, and the shampoo for hair washing is ejected to the outside from the communicating portion 109 provided on the projection 105 (for example, a patent). Reference 1).

  In addition, such an electric brush device is also known in which the edge of the substrate is slidably provided with respect to the frame of the drive unit (for example, Patent Document 2).

JP 2008-228922 A JP 2006-187544 A

  In the prior art, the user holds the drive unit 101 so that the treatment unit 102 faces the scalp S in order to apply the plurality of protrusions 104 and 105 to the scalp S almost evenly. There is a need to.

  However, the scalp is facing upward at the top of the head and sideways at the side of the head, and in order to hold the massage device main body so that the treatment part faces the scalp, the treatment part depends on the position of the scalp S. Although it is necessary to change the direction of 102, there is a possibility that the treatment part 102 cannot be directly opposed to the scalp S unless the wrist is twisted or the drive part is re-taken. In addition, since the human head is not a simple shape, there is a possibility that the conventional massage apparatus cannot satisfactorily massage or clean the surface of the head, that is, the scalp S.

  As means for solving such a problem, the present applicant has proposed an electric brush device according to Japanese Patent Application No. 2009-10335. In the prior invention, a frame body that holds the periphery of the substrate of the brush portion with respect to the drive portion is provided movably with respect to the drive portion via the support means, and the brush portion can be automatically corrected to face the scalp. That's it. Even when such automatic correction can be performed, it is required to make the movement smoother.

  The problem to be solved by the present invention is to connect a brush unit to a driving device, press the projection of the brush unit against the scalp, and wash or massage the scalp so that it is performed with a fingertip. It is intended to allow the protrusions of the brush part to face the scalp at any part of the head smoothly.

  The invention of claim 1 has a drive part and a brush part operated by the drive part, and the brush part is provided so as to protrude from the surface of the substrate and a substrate made of a flexible material. In the electric brush device, which is configured by a plurality of protrusions, and the driving unit is provided with a frame body that holds the periphery of the substrate, the frame body is movably provided to the driving unit via a support unit. The one side is connected to the drive unit, the other side is connected to the frame body, and a packing is provided between the drive unit and the frame body to divide the inside and the outside. In the expansion / contraction space defined by the drive unit, the packing, the frame body, and the substrate, while making the drive unit slidably contact with the drive unit or with the other side slidably contacting the frame unit A liquid detergent container is provided on the inside of the expansion / contraction space. A motorized brush device, wherein a communicating portion communicating provided in the brush portion.

  The invention according to claim 2 is the electric brush device according to claim 1, wherein the one side or the other side of the packing is in pressure contact with the drive unit or the frame.

  According to a third aspect of the present invention, the support means includes a shaft and a bearing portion connected to the shaft, and the swing center axis of the shaft is orthogonal to the center axis of the substrate. The electric brush device according to claim 1, wherein

  According to the first aspect of the present invention, the brush member is opposed to the scalp because the frame that supports the brush portion moves relative to the drive portion by the support means due to the contact state of the protrusion. Even if there is a packing that divides the inside and outside between the drive unit and the frame body, this packing is not fixedly connected but slidably pressed. Thus, the connection resistance of the packing can be reduced, and the frame body can be smoothly moved with respect to the drive unit. And it can prevent by the said packing that the bubble of the liquid detergent accommodated in the said container which repeats compression and decompression with expansion / contraction of the said expansion / contraction space leaks from other than the said communication part.

  According to the invention of claim 2, since the one side or the other side of the packing is pressed against the drive unit or the frame, it is possible to more reliably prevent liquid detergent bubbles from leaking from other than the communication unit. can do.

  According to the invention of claim 3, the supporting means is constituted by a shaft and a bearing portion connected to the shaft, and the swing center axis of the shaft is orthogonal to the center axis of the substrate. Thus, the brush portion held by the frame body can be automatically opposed to the scalp around the axis.

It is a whole perspective view from the upper part which shows Example 1 of this invention. FIG. 2 is an overall perspective view from below. FIG. FIG. 2 is an exploded perspective view around the frame. It is an exploded perspective view around a brush part. It is sectional drawing which shows Example 2 of this invention. FIG. 2 is an exploded perspective view around the frame. It is sectional drawing around the brush part of the curve convex state which shows a prior art example. It is sectional drawing around the brush part of a curved concave state which shows a prior art example.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  1 to 5 show a first embodiment. In this example, the upper and lower sides are defined with reference to the stationary posture of FIG. Reference numeral 1 denotes an electric brush device according to the present invention. The electric brush device 1 includes a device main body 2 as a drive unit, and a brush unit 3 that is detachably held on the lower side of the device main body 2.

  The brush portion 3 includes a substrate 4 and a plurality of protrusions 5 that are integrally provided so as to protrude downward from the surface 4S that is the lower surface of the substrate 4. The substrate 4 is formed so that the surface 4S side from which the protrusion 5 protrudes is convex in a natural state where the substrate 4 is not attached to the apparatus body 2. The substrate 4 is elliptical in plan view and is formed of an elastomer having flexibility and elasticity. The plurality of protrusions 5 are also provided integrally with the substrate 4, and the protrusions 5 have a protrusion length A of the outer one that is lower than a protrusion length a of the inner one. (A <A). The edge 4 </ b> A of the substrate 4 is fixed to the edge of the frame body 6 provided on the bottom surface part 2 </ b> B side formed integrally with the apparatus main body 2.

  Note that the term “fixed” here includes a state in which connection is allowed with some movement, and in this embodiment, the edge 4A of the substrate 4 is fitted to the frame body 6. Both are detachably connected over the entire circumference. Further, 4H in the figure is a knob provided integrally with one end of the major axis direction Y orthogonal to the central axis X orthogonal to the center O of the plane of the substrate 4. Further, Z in the figure indicates the minor axis direction of the substrate 4.

  The frame 6 is not easily deformed as much as the elastomer constituting the brush portion 3, but is made of an elastically deformable synthetic resin and is formed in an elliptical ring shape that substantially matches the substrate 4 in plan view. Yes. Then, the center of the frame 6 in a plan view is disposed on the central axis X. Further, the frame body 6 is provided slightly below the gap L from the bottom surface portion 2B of the apparatus main body 2.

  The frame body 6 is provided so as to be swingable with respect to the apparatus main body 2 via a support means 7. The support means 7 is disposed at both ends in the minor axis direction Z ′ orthogonal to the central axis X of the substrate 4.

  The shape of the frame body 6 is such that, in the major axis direction Y ′ of the frame body 6, the outer side portion on the side opposite to the central portion O ′ from the inner side portion 6A on the central portion O ′ side through which the central axis X passes. 6B is formed so as to be separated from the apparatus main body 2. That is, in the major axis direction Y ′, when the virtual horizontal surface 2B ′ including the horizontal bottom surface portion 2B in FIG. 3 is used as a reference surface, the inner portion 6A on the central portion O ′ side and the virtual horizontal surface 2B ′ that is directly opposite to the inner portion 6A. The distance M between the outer portion 6B and the virtual horizontal surface 2B ′ that is directly opposite to the outer portion 6B gradually increases (m <M). For this reason, the shape of the frame 6 in the major axis direction Y ′ is formed in a substantially arc shape so that the inner portion 6A on the center portion O ′ side is high and gradually decreases toward the outer portion 6B side. The curvature of the arc of the frame 6 is substantially the same as the average curvature of the scalp S, and the outer edge 6C of the frame 6 is formed so as to pass on the same spherical surface.

  On the other hand, the shape of the frame 6 in the minor axis direction Z ′ is such that, in each part along the minor axis direction Z ′, each part along the minor axis direction Z ′ and the virtual horizontal plane 2B ′ that directly faces the part. The distance N is formed substantially the same. That is, the frame 6 is formed flat in the minor axis direction Z ′. The frame body 6 may be formed in an arc shape also in the minor axis direction Z ′.

  In addition, a downward small protrusion is formed on the outer edge 6C of the outer portion 6B of the frame body 6. Then, the edge 4 </ b> A of the substrate 4 of the brush unit 3 that is folded inwardly in an upward U shape or a U shape is fitted to the outer edge 6 </ b> C of the frame body 6. The window hole 6D formed inside the frame 6 is circular in plan view with the central axis X as the center, and an elastomer is provided between the window hole 6D and the bottom surface 2B of the case body 2A. A packing 20 described later made of a material having flexibility and elasticity such as the above is provided.

  The support means 7 includes a shaft 8 and a bearing portion 8A. The shafts 8 are provided on the left and right sides of the bottom plate 9 constituting the bottom surface portion 2B of the apparatus main body 2, respectively. In other words, the shaft 8 projects outwardly on both sides of the slightly pivoting center Z ″ slightly parallel to the minor axis direction Z ′ orthogonal to the central axis X. On the other hand, the bearing portions 8 </ b> A that receive the shaft 8 are provided on the left and right sides of the frame body 6. In the embodiment, the bearing portion 8A is arranged on the upper part of a pair of suspension members 6F projecting on the upper surface of the frame body 6 so that the swing rotation center Z ″ is parallel to the minor axis direction Z ′. Is provided. Then, the bearing portion 8A provided on the upper part of the suspension member 6F is rotatably connected by the shaft 8, so that the frame body 6 can swing around the shaft 8 as a rotation center. It has become. In addition, 8B in the figure has shown the cover plate which covers the outer side of the said bearing part 8A.

  The apparatus main body 2 is configured to include the case main body 2A having an opening on the bottom side and a size that can be grasped with one hand, and the bottom portion 2B that closes the opened bottom side of the case main body 2A. Yes. The bottom surface portion 2B includes the bottom plate 9 and a cover body 11. The bottom plate 9 is formed in an elliptical shape having an outer shape substantially equal to that of the frame 6 in plan view. The outer periphery of the bottom plate 9 is fixed to the bottom edge of the case main body 2A. A circular window hole 10 penetrating in the vertical direction is formed, and the cover body 11 is provided so as to cover the window hole 10 and can be expanded and contracted. The cover 11 is provided so as to seal the window hole 10 in a watertight manner by a bellows-like film made of a flexible material such as rubber, synthetic rubber, or elastomer. By being sandwiched between the chassis 2 </ b> C of the apparatus main body 2 and the bottom plate 9, the bottom plate 9 is hermetically connected.

  The chassis 2C provided inside the apparatus main body 2 is provided with reciprocating drive means 12 for reciprocating the central portion O of the substrate 4 in the vertical direction. The reciprocating drive means 12 is coupled to a motor 13 as a drive source, a crank 15 connected to a motor shaft (not shown) of the motor 13 via a reduction gear mechanism 14, and an eccentric shaft 15A of the crank 15. The yoke 16 and a rod 16A formed integrally with the yoke 16 are provided. Thus, in this embodiment, a so-called Scotch-yoke mechanism is employed, but a crank mechanism may be employed.

  Note that a connection relay member 17 is integrally attached to substantially the center of the cover body 11. The connection relay member 17 is sandwiched between the upper surface side and the lower end of the rod 16A to fix the cover body 11 in a watertight manner, and a hook 17A is provided on the lower surface side thereof. A hook receiving portion 4B provided on the upper surface in the center of the substrate 4 is detachably connected. Therefore, the connection relay member 17 is reciprocated in the vertical direction by converting the rotational motion of the motor 13 into reciprocal motion between the crank 15 and the yoke 16. Thereby, the position where the hook receiving portion 4B is provided becomes the maximum amplitude portion in the substrate 4, and the amplitude is twice the eccentric distance F from the central axis of the crank 15 to the eccentric shaft 15A (2F). It becomes. The hook receiving portion 4B and the connection relay member 17 are disposed on the central axis X. The chassis 2C provided inside the apparatus main body 2 is provided with a battery 18 for supplying electric power to the motor 13, and the upper surface of the apparatus main body 2 is provided with the motor A switch 19 for operating 13 is provided.

  Next, the packing 20 will be described. The packing 20 is made of a flexible material such as rubber, synthetic rubber, or elastomer, for example, and the plane centering on the central axis X has a circular ring shape, and the diameter d of the upper part 20A is equal to that of the lower part 20B. It has a truncated cone shape larger than the diameter D (d <D), and the upper portion 20A of the packing 20 is in pressure contact with the inner peripheral surface 9A of the bottom plate 9 so that they are airtight. An expansion / contraction space 29 to be described later is defined by being connected to. The inner peripheral surface 9A is formed in a substantially conical tapered surface so that the lower diameter E gradually becomes larger than the upper diameter e (e <E). Then, as will be described later, when the substrate 4 is repeatedly deformed between a curved convex state where the substrate 4 is bent downward and a curved concave state where the substrate 4 is bent upward, the frame body 6 is swung around the shaft 8. When moved, the upper portion 20A of the packing 20 does not deviate from the inner peripheral surface 9A. For this reason, the range of the diameter d is substantially equal to or greater than the diameter e, and is substantially equal to or less than the diameter E (e ≦ d ≦ E). On the other hand, the lower part 20B of the packing 20 is formed integrally with the inner part 6A of the frame 6 by insert molding.

  Further, the substrate 4 is airtightly connected to the frame 6, the packing 20 connected above the frame 6, the bottom plate 9 with which the packing 20 abuts, and the bottom plate 9. In addition, a small through-hole-shaped first communicating portion 21 and a second communicating portion 22 that communicate between the inside and outside of the expansion / contraction space 29 surrounded by the cover body 11 and the substrate 4 connected to the lower side of the frame body 6 are provided. Provided. In the expansion / contraction space 29, a shampoo container 26 is provided as a liquid detergent that communicates with the communication portions 21 and 22 and responds to the bending of the substrate 4. A plurality of small protrusions 27 are provided in an annular arrangement on the surface 4S of the substrate 4 around the central axis X, and an annular wall 28 is provided so as to connect the small protrusions 27 to each other. ing. Further, the projecting dimension of the annular wall 28 from the surface 4S of the substrate 4 is smaller than the projecting dimension of the small protrusion 27. The substrate 4 is partitioned inward and outward by the small protrusions 27 and the annular wall 28. The second communication part 22 is formed in an area surrounded by the small protrusions 27 and the annular wall 28. On the other hand, the first continuous portion 21 is formed in a region outside the small protrusion 27 and the annular wall 28.

  The container 26 is adapted to repeatedly compress and restore in response to the bending of the substrate 4, thereby sucking and discharging the shampoo from the communicating portions 21 and 22. The container 26 is formed of a synthetic sponge or sponge (natural sponge) made of open-cell foamed polyurethane, foamed rubber or the like, which is an elastic body in the embodiment, and the substrate 4 bends downward. In the curved convex state, the container 26 is in an almost uncompressed state or slightly compressed state and is interposed in the expansion / contraction space 29. That is, when the substrate 4 is in a curved convex state bent downward, the upper surface 26A of the housing body 26 is in contact with or close to the lower surface of the frame body 6 and the cover body 11, and the lower surface 26B of the housing body 26. Is in contact with or close to the upper surface of the substrate 4, and the outer periphery 26 </ b> C of the container 26 is in contact with or close to the downward small protrusion formed on the edge 4 </ b> A of the substrate 4 and the outer edge 6 </ b> C of the frame 6. doing. On the other hand, a through-hole 26 </ b> D is formed in the central portion of the container 26 along the central axis X. The hook receiving portion 4B and the hook 17A can be connected through the through hole 26D.

  Next, the effect | action is demonstrated about the said structure. First, the user turns over the apparatus main body 2, puts the container 26 on the frame body 6, and then attaches the hook 17 </ b> A to the hook receiver of the substrate 4 of the brush unit 3 through the through hole 26 </ b> D of the container 26. Further, the edge 4 </ b> A of the substrate 4 of the brush portion 3 is engaged with the outer edge 6 </ b> C of the frame body 6. In this way, the electric brush device 1 is ready for use. At this time, as described above, the substrate 4 of the brush portion 3 is in a curved convex state in a natural state, but the frame body 6 to which the brush portion 3 is attached is curved concave with respect to the major axis direction Y ′. By being in the state, the protruding amount of the substrate 4 of the brush portion 3 attached to the frame 6 is smaller than that of the conventional structure at least in the major axis direction Y. On the contrary, in the minor axis direction Z, the protrusion amount of the substrate 4 of the brush portion 3 is larger than that of the conventional structure. Therefore, in the curved convex state, the protrusion 5 is slightly closed in the major axis direction Y compared to the conventional structure, and is slightly opened in the minor axis direction Z compared to the conventional structure. Note that the inward inclination angle of the projections 5 provided at both ends in the minor axis direction Z in the curved concave state is almost the same as that of the conventional structure.

  And when scalp S is wash | cleaned or massaged, the user makes the said container 26 contain the appropriate amount of water previously. In addition, water is absorbed by the container 26 through the communication portions 21 and 22 by immersing the electric brush device 1 in water. Then, the electric brush device 1 is turned upside down from the state of FIG. 3 so that the surface 4S of the substrate 4 faces upward, and an appropriate amount of shampoo is placed in a region surrounded by the small protrusions 27 and the annular wall 28 (not shown). ) At this time, the shampoo poured into the area surrounded by the small protrusion 27 and the annular wall 28 does not flow out to the area outside the small protrusion 27 and the annular wall 28 unless excessive pouring is performed. A small amount of shampoo permeates from the second communication part 22 into the container 26 side.

  Next, when the switch 19 is operated, electric power is supplied from the battery 18, whereby the motor 13 is operated and the motor shaft 13 </ b> A is rotated. Along with the rotation of the motor shaft 13A, the crank 15 connected to the motor shaft 13A via the reduction gear mechanism 14 rotates, and the crank 15 and the yoke 16 coupled to the eccentric shaft 15A of the crank 15 are rotated. The rotational motion of the motor shaft 13A is converted into reciprocating motion, and the connection relay member 17 attached to the lower end of the rod 16A formed integrally with the yoke 16 reciprocates up and down. Then, the substrate 4 is the same as in the prior art so that the hook receiving portion 4B connected to the hook 17A provided on the connection relay member 17, that is, the center of the substrate 4 is the maximum amplitude portion. The deformation is repeated between a curved convex state bent downward and a curved concave state bent upward, and the amplitude at the maximum amplitude portion is an eccentric distance F from the central axis of the crank 15 to the eccentric shaft 15A. Double (2F).

  Thus, by repeating the deformation between the curved convex state where the substrate 4 is bent downward and the curved concave state where the substrate 4 is bent upward, the expansion / contraction space 29 is repeatedly compressed and restored. As a result, the container 26 in the expansion / contraction space 29 is repeatedly compressed and restored in response to the bending of the substrate 4. When the container 26 is restored from the compressed state, the expansion / contraction space 29 is in a reduced pressure state, so that the shampoo poured into the inner area of the annular small protrusion 27 and the annular wall 28 is the second. It is sucked from the communication part 22 and flows into the expansion / contraction space 29 and is accommodated in the accommodating body 26. Conversely, when the container 26 is compressed, the shampoo accommodated in the container 26 is ejected from the second communication portion 22. The shampoo is foamed by being mixed with air when pushed out through the second communication portion 22. Then, the deformation of the container 26 is repeated in this manner, so that the shampoo gradually spreads from the center of the container 26 to the outer peripheral side. The applied shampoo will be pushed out. In this way, the container 26 repeatedly compresses and restores in response to the deformation of the substrate 4 repeated between the curved convex state and the curved concave state, so that the inner area of the small protrusion 27 and the annular wall 28 is obtained. The shampoo poured into is bubbled and supplied to the outside from the entire brush part 3. The shampoo is finely bubbled when passing through the communication parts 21 and 22. And the said shampoo will be bubbled finely, so that the diameter of the hole of the said communication parts 21 and 22 is small.

  Thus, in a state where the shampoo is foamed, the user holds the apparatus main body 2 and presses the tip of the protrusion 5 against the scalp S and holds it by hand. As a result, the protrusion 5 mainly rubs the scalp S by being inclined inwardly with respect to the central axis X, or is erected afterwards, and gives a stimulus. You can massage.

  In the conventional structure, although depending on the shape of the scalp S, the protrusions 5 provided at both ends in the minor axis direction Z are strongly pressed against the scalp S, while at both ends in the major axis direction Y. The provided protrusions 5 tend to be pressed against the scalp S weakly. However, in this embodiment, as described above, the projection 5 is slightly closed in the major axis direction Y compared to the conventional structure, and is slightly opened in the minor axis direction Z compared to the conventional structure. The projection 5 provided at both ends of the projection 5 is slightly stronger against the scalp S, and the projection 5 provided at both ends in the minor axis direction Z is slightly weakened against the scalp S. As a result, since the projection 5 as a whole can equalize the contact with the scalp S, the effect of washing or massage can be enhanced as compared with the conventional structure.

  Further, in the conventional structure, since the bending progresses concentrically around the center O of the substrate 4, the substrate 4 is hardly bent at both ends in the major axis direction Y of the brush portion 3 and is provided in this portion. The protrusion 5 hardly participates in cleaning or massage. However, in the present embodiment, as described above, the outer edge 6C of the frame 6 is configured to pass on the same spherical surface, and therefore, the conventional structure is that the bending progresses around the center O of the substrate 4. However, the entire substrate 4 can be bent without bending in a concentric manner. Therefore, since the protrusion 5 that has been hardly involved in the cleaning or the massage can be related to the cleaning or the massage, the effect of the cleaning or the massage can be enhanced. Further, as described above, when the substrate 4 is in the curved convex state, the projection 5 is slightly opened in the minor axis direction Z as compared with the conventional structure, and the projection 5 is in the curved concave state. Since the inclination angle is almost the same as the conventional structure, the movement of the projection 5 in the minor axis direction Z can be increased. Due to these synergistic effects, the electric brush device 1 of the present embodiment can enhance the effect of cleaning or massage as compared with the conventional structure.

  In addition, when performing washing or massage, it is necessary to bring the plurality of protrusions 5 into contact with the scalp S evenly by bringing the brush portion 3 to face the scalp S. Since it cannot be visually recognized, the brush part 3 is roughly opposed to the scalp S when the apparatus main body 2 is gripped. However, when the brush portion 3 is not directly facing the scalp S (the central axis X is inclined with respect to the scalp S), the brush portion 3 is not connected to the device as indicated by an arrow T. Since the brush portion 3 can automatically come into contact with the scalp S by swinging with respect to the main body 2 about the swing center axis Z ″ of the shaft 8, The scalp S can be evenly washed or massaged by the projection 5.

  When the brush portion 3 swings about the shaft 8, the upper portion 20A of the packing 20 is pressed against the inner peripheral surface 9A of the bottom plate 9 to connect them together in an airtight manner, so that a shampoo can be obtained. There will be no leakage to the outside of the packing 20. Further, the upper portion 20A of the packing 20 is slidably pressed against the inner peripheral surface 9A of the bottom plate 9 in a slidable manner, so that the brush portion 3 is driven to swing around the shaft 8 as a swing center. With respect to the force, a dynamic frictional resistance force or a static frictional resistance force is generated at the location of the pressure contact, and the resistance force can be reduced as much as possible as compared with a case where the force is replaced instead of the pressure contact. As a result, the brush portion 3 can smoothly swing about the shaft 8 as a swing center.

  Since the human head is not actually a simple shape, the scalp S is not necessarily cleaned well or massaged by the protrusions 5 when the brush part 3 is just facing the head surface, that is, the scalp S. It is not always done. However, as described above, since the frame 6 is configured to be elastically deformable even if it is a synthetic resin, the brush portion is pressed according to the shape of the scalp S by pressing the brush portion 3 against the scalp S. 3 substrate 4 is bent, and the frame body 6 fixing the brush portion 3 is also bent according to the bending of the substrate 4. And in the state which the said frame 6 bent along the scalp S, the said brush part 3 is made into the scalp S by repeatedly bending the board | substrate 4 of the said brush part 3 between a curved convex state and a curved concave state. It can be washed or massaged well along the way.

  As described above, in the above-described embodiment, the apparatus main body 2 as a driving unit and the brush unit 3 operated by the apparatus main body 2 are provided, and the brush unit 3 is a substrate 4 made of a flexible material. And a plurality of projections 5 provided so as to protrude from the surface 4S of the substrate 4, and the device body 2 is provided with a frame body 6 for detachably holding the peripheral edge 4A of the substrate 4, and the frame body. 6 is provided so as to be swingable with respect to the apparatus main body 2 via the support means 7, even if the protrusion 5 comes into contact with the brush portion 3 not facing the scalp S. Since the brush portion 3 swings with respect to the apparatus main body 2 in accordance with the contact state of the brush 5, the brush portion 3 can be automatically corrected so as to face the scalp S, and the plurality of protrusions 5 of the brush portion 3 can be corrected. The scalp S with good contact with the scalp S It is possible to Ssaji.

  Further, the upper portion 20A of the packing 20 is slidably brought into contact with and connected to the inner peripheral surface 9A of the bottom plate 9 of the apparatus main body 2, and the apparatus main body 2, the packing 20, the frame body 6, and the substrate. 4, the expansion / contraction space 29 is defined, a shampoo container 26 as a liquid detergent is provided in the expansion / contraction space 29, and the communication portions 21, 22 communicating the inside and outside of the expansion / contraction space 29 are provided as the base 4 of the brush portion 3. Shampoo bubbles generated by compression and restoration of the expansion / contraction space 29 can be discharged only from the communication portions 21 and 22, and the brush portion 3 is attached to the apparatus main body 2. The resistance at the time of rocking is relatively small compared to the conventional one, and the rocking can be performed smoothly.

  Further, the upper part 20A of the packing 20 is slidably pressed against the inner peripheral surface 9A of the bottom plate 9 of the apparatus main body 2, thereby preventing foam leakage from other than the communication parts 21 and 22 more reliably. Can do.

  In addition, the frame body 6 is connected by the support means 7 including the shaft 8 and the bearing portion 8A, and the swing center axis Z ″ of the shaft 8 is set to the center axis X of the substrate 4. By making them orthogonal to each other, the brush portion 3 held by the frame body 6 can be automatically opposed to the scalp S with the shaft 8 as the swing center axis Z ″.

  6 to 7 show the second embodiment, and the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the supporting means 7 'of the second embodiment, a bearing portion 8A is provided on the bottom plate 9 side, and a shaft 8 to be inserted into the bearing portion 8A is provided on the frame body 6 side. Further, in the packing 20 ′, an upper portion 20A ′ which is one side is fixed to the bottom plate 9, while a lower portion 20B ′ which is the other side is slidable on the upper surface of the inner portion 6A of the frame body 6 in an airtight manner. It is pressed in contact.

  Even in such a modification, the same effects as those of the first embodiment can be obtained.

  As described above, the electric brush device according to the present invention is not limited to the above embodiments, and various modifications can be made within the scope of the gist of the invention. For example, in the above-described embodiment, the electric brush device that can be used for cleaning and massaging the scalp and the like has been described. However, the present invention may be applied to a massaging device that can be used for any part of the human body.

DESCRIPTION OF SYMBOLS 1 Electric brush apparatus 2 Apparatus main body (drive part)
3 Brush part 4 Substrate 4S Surface 5 Projection 6 Frame body 8 Shaft 8A Bearing 20 Packing 20A Upper part (one side)
20B Lower part (other side)
21 and 22 communication part 29 expansion and contraction space

Claims (3)

  It has a drive part and a brush part operated by this drive part, and this brush part is composed of a substrate made of a flexible material and a plurality of protrusions provided to protrude from the surface of this substrate. In the electric brush device in which the drive unit is provided with a frame body that holds the peripheral edge of the substrate, the frame body is provided movably through a support means with respect to the drive unit, and one side of the drive unit is provided with the drive unit And the other side is connected to the frame body, and a packing that divides the inside and the outside is interposed between the drive unit and the frame body, and the one side of the packing is slidable with respect to the drive unit Or the other side is slidably brought into contact with the frame, and a liquid detergent container is placed in an expansion / contraction space defined by the drive unit, the packing, the frame, and the substrate. A communicating portion that communicates the inside and outside of the expansion / contraction space Electric brush device, characterized in that provided in the brush portion.   The electric brush device according to claim 1, wherein the one side or the other side of the packing is in pressure contact with the drive unit or the frame. 2. The support means includes a shaft and a bearing portion connected to the shaft, and the swing center axis of the shaft is orthogonal to the center axis of the substrate. Electric brush device.

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