JP2014039742A - Massage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a massage device capable of performing a twisting operation simultaneously with a pressing operation in massage.SOLUTION: The massage device includes: a grip part 1; a plurality of head parts 5A and 5B that have contact faces 53A and 53B pressed by a therapeutic part and is provided movably in the pressing direction (X2 direction) with respect to the grip part 1; and a rotation energizing mechanism 6 that rotates the plurality of head parts 5A and 5B with the pressing direction (X2 direction) defined as a rotation axis direction. The rotation energizing mechanism 6 rotates the two head parts 5A and 5B in different directions.

Description

  The present invention relates to a massage apparatus that performs massage manually.

  In general, many massage devices that are manually driven are provided with a cylindrical rotating body (roller) (Patent Document 1). This type of massage device is configured to stimulate the treatment area (massage position) by rotating a roller and to improve blood circulation and activate skin metabolism by this massage effect.

  Moreover, the massage apparatus comprised so that a massage effect (acupressure effect) can be implement | achieved by pressing is also provided (patent document 2). This type of massage apparatus has a handle that is gripped by a user and a spherical massage section provided at the tip of the handle. And it was set as the structure which obtains a massage effect by a user grasping a handle and pressing a massage part on the treatment part to which a face etc. desire.

Utility New Registration No. 3104107 JP 2009-213791 A

  However, when there is local stiffness, or when the massage site is narrow, such as near the eyes, massage with a roller is not suitable. On the other hand, a massage device having a spherical massage portion provided at the tip of the handle is effective for local stiffness and narrow massage.

  However, the conventional massage apparatus having the pressing portion at the tip of the elastic arm can only perform a process of pressing the desired treatment portion vertically. On the other hand, when acupressure is performed with a human finger, not only the treatment part is pressed vertically, but a twisting operation is applied to the finger. As described above, when the treatment portion is pressed, a more effective massage can be performed by applying a twisting operation to the treatment portion in addition to the pressing operation.

  In the conventional massage apparatus, even if the treatment part can be pressed vertically, the operation part cannot be twisted. For this reason, the conventional massage apparatus has a problem that effective massage cannot be sufficiently performed.

  This invention is made | formed in view of said point, and it aims at providing the massage apparatus which can perform a twist operation | movement simultaneously with a press operation | movement at the time of a massage.

From the first point of view, the above problem is
A gripping part;
A plurality of head portions having a contact surface to be pressed by the treatment portion and provided so as to be movable in the pressing direction with respect to the grip portion;
A rotation urging mechanism that rotates the plurality of head portions with the pressing direction as a rotation axis direction;
It can be solved by a massage device characterized by having.

  According to the disclosed massage apparatus, it is possible to perform an effective massage because a plurality of head parts can simultaneously perform a twisting process as well as a pressing process on a treatment part during massage.

FIG. 1 is an exploded perspective view showing a schematic configuration of a massage apparatus according to an embodiment of the present invention. FIG. 2 is an external view of a massage apparatus according to an embodiment of the present invention. FIG. 3 is a view for explaining the operation of the massage apparatus according to the embodiment of the present invention, and is a view in which only the outer is viewed in cross section. FIG. 4 is a diagram for explaining the operation of the massage apparatus according to the embodiment of the present invention, and is a diagram for explaining the movement of the massage head. FIG. 5 is a cross-sectional view of an essential part for explaining the operation of the massage apparatus according to the embodiment of the present invention. FIG. 6 is a diagram for explaining a modification of the massage device according to the embodiment of the present invention.

  Next, embodiments of the present invention will be described with reference to the drawings.

  1 to 5 are diagrams for explaining a massage device 10A according to an embodiment of the present invention. FIG. 1 is an exploded perspective view showing a schematic configuration of the massage device 10A, FIG. 2 is a perspective view showing the appearance of the massage device 10A, and FIGS. 3 to 5 are diagrams for explaining the operation of the massage device 10A. is there.

  The massage device 10A according to the present embodiment is mainly used for beauty, and specifically, used when performing massage on a user's side, neck, head, or other treatment area. . In particular, the massage device 10A according to the present embodiment is effective for extending the eyelids and the like as described later.

  The massage device 10A generally includes a gripping portion 1, a plurality (two in this embodiment) of massage heads 5A and 5B, a rotation urging mechanism 6, and the like.

  As shown in FIG. 1, the grip portion 1 includes a grip portion main body 2, an inner 3, an outer 4, and the like. The grip body 2 is a part gripped by the user when performing massage at the user's treatment position (massage position). The grip body 2 has a bottomed cylindrical shape, and thus an opening 22 is formed at the end in the X2 direction. Further, a step portion 23 is formed at the outer peripheral position in the vicinity of the opening 22.

  By the way, the massage apparatus 10A according to the present embodiment is configured to be able to store a cosmetic container (for example, an aerosol container) loaded with, for example, a cosmetic or the like in the grip portion main body 2. When a cosmetic container is attached to the massage device 10A, it is possible to discharge the cosmetic to the treatment part with a massage operation described later. In the following description, for convenience of explanation and illustration, a case where a cosmetic container is not attached will be described as an example.

  The inner 3 is configured to include inner main bodies 31A and 31B, a collar portion 32, a mounting portion 33, and the like. Two inner bodies 31A and 31B are provided corresponding to the massage heads 5A and 5B. The inner bodies 31A and 31B have a bottomed cylindrical shape, and are integrated by connecting the lower end portions (end portions in the direction of the arrow X1) by the flange portion 32 and the mounting portion 33. Yes.

  The mounting portion 33 is configured to be fitted into the opening 22 of the grip portion main body 2. Further, when the mounting portion 33 is fitted into the grip portion main body 2, the hook portion 32 is inserted until it comes into contact with the upper side end portion (X2 direction side end portion, the peripheral edge portion of the through hole 22) of the grip portion main body 2. . The inner portion 3 is positioned with respect to the grip portion main body 2 by the flange portion 32 coming into contact with the upper end portion of the grip portion main body 2.

  In addition, nozzle portions 34A and 34B are formed at the upper end portions (X2 direction side end portions) of the inner main bodies 31A and 31B. The nozzle portions 34A and 34B have a smaller diameter than the inner main bodies 31A and 31B. Accordingly, step portions 37A and 37B are formed at the boundary portions between the nozzle portions 34A and 34B and the inner main bodies 31A and 31B.

  As shown in FIG. 5, holes 35A and 35B are formed in the nozzle portions 34A and 34B. The holes 35A and 35B function as a passage for the cosmetic discharged from the cosmetic container when the cosmetic container is mounted.

  The outer 4 has a cylindrical shape with a substantially elliptical cross section, and is disposed so as to cover the inner 3. The outer 4 includes an outer main body 41, a fixing portion 42, a head receiving portion 43, and engagement pins 45A and 45B.

  The outer main body 41 is configured to accommodate the inner main bodies 31A and 31B therein. Further, in a state where the inner main bodies 31A and 31B are accommodated therein, a gap 9 is formed between the inner surface of the outer main body 41 and the outer surfaces of the inner main bodies 31A and 31B.

  The fixing portion 42 is formed at the lower end portion (end portion on the X1 direction side) of the outer main body 41. The fixing portion 42 is fitted into the stepped portion 23 of the gripping portion main body 2, whereby the outer 4 is fixed to the gripping portion main body 2. At this time, the fixing portion 42 is fitted to the step portion 23 after the inner 3 described above is attached to the grip portion main body 2.

  A stepped portion 42A is formed at the boundary of the outer main body 41 on the inner wall of the fixed portion 42 (see FIG. 3). When the outer 4 is fixed to the grip portion main body 2, the step portion 42 </ b> A engages with the flange portion 32 of the inner 3 and presses it toward the grip portion main body 2. Therefore, by fixing the outer 4 to the grip portion main body 2, the inner 3 is also fixed to the grip portion main body 2.

  The head receiving portion 43 is formed on the upper end portion (the end portion on the X2 direction side) of the outer main body 41. In the head receiving portion 43, massage heads 5A and 5B described later are movably accommodated. Specifically, a pair of through holes 44A and 44B are formed in the outer body 41, and the massage heads 5A and 5B are inserted into the through holes 44A and 44B in the direction of pressing and releasing the treatment portion (X1, X2). It is mounted in a configuration that is movable in the direction).

  The engagement pins 45 </ b> A and 45 </ b> B constitute the rotation urging mechanism 6 and are disposed on the outer main body 41. The engagement pins 45 </ b> A and 45 </ b> B protrude inward from the inner wall of the outer main body 41.

  The plurality of massage heads 5A and 5B (corresponding to the head portion described in the claims) are configured such that the outer cylinder portions 51A and 51B, the head portions 52A and 52B, and the inner cylinder portions 58A and 53B are integrally formed. ing. In addition, since massage head 5A, 5B is substantially the same structure, in the following description, massage head 5A, 5B is demonstrated collectively.

  In this embodiment, the massage heads 5A and 5B are formed of TPU (thermoplastic polyurethane elastomer). This TPU has a characteristic that has both elasticity like rubber and toughness like hard plastic. The material of the massage heads 5A and 5B is not limited to TPU, and various materials such as metal, wood, glass, stone, and rubber can be used as long as they have a predetermined hardness described later. is there.

  The outer cylinder portions 51 </ b> A and 51 </ b> B are movably inserted between the inner 3 and the outer 4. That is, a gap 9 is formed between the inner surface of the outer main body 41 and the outer surfaces of the inner main bodies 31A and 31B, but the outer cylindrical portion 51 is movable in the gap 9 (movable in the X1 and X2 directions). Inserted.

  In this inserted state, as shown in FIG. 5, the cylindrical portion 51A of the massage head 5A is movably inserted into the inner body 31A, and the cylindrical portion 51B of the massage head 5B is movably inserted into the inner body 31B. Become. Therefore, the massage heads 5A and 5B are guided by the inner 3 and outer 4 and can move in the directions of arrows X1 and X2 in the figure. Cam grooves 55A and 55B that constitute a rotation urging mechanism 6 described later are formed on the surfaces of the outer cylinder portions 51A and 51B.

  The diameters of the head parts 52A and 52B are set larger than the diameters of the outer cylinder parts 51A and 51B. The head portions 52 </ b> A and 52 </ b> B are configured to be movable (inserted) into the head receiving portion 43 of the outer 4. The upper surfaces of the head portions 52A and 52B are contact surfaces 53A and 53B that come into contact with the treatment portion (the massage position of the user's skin) when performing massage using the massage device 10A.

  Convex portions 54A, 54B, 56A, and 56B are formed on the contact surfaces 53A and 53B (detailed in FIG. 4). The massage heads 5A and 5B are rotated around the rotation center shafts 65A and 65B by a rotation urging mechanism 6 described later. The convex portions 54A and 54B are configured to be arranged in a ring shape around the rotation center shafts 65A and 65B on the contact surfaces 53A and 53B.

  On the other hand, the convex portions 56A and 56B are configured to be formed at positions on the rotation center axes 65A and 65B on the contact surfaces 53A and 53B. The convex portions 56A and 56B are formed with holes 57A and 57B that serve as cosmetic outlets when the cosmetic container is housed in the grip portion main body 2, respectively. The rotation center shafts 65A and 65B are set so as to extend in the pressing and pressing release directions (X1 and X2 directions) of the massage heads 5A and 5B.

  When the contact surfaces 53A and 53B are pressed to the treatment position (massage position) when the massage device 10A is used, the convex portions 54A, 54B, 56A and 56B are pressed against the treatment position. Thereby, it can prevent that a slip generate | occur | produces between a treatment part and contact surface 53A, 53B, and can fully exhibit the twist effect and knob effect which are mentioned later.

  As shown in FIG. 5, the inner cylinder portions 58A and 58B are formed inside the outer cylinder portions 51A and 51B. The inner cylinder portions 58A and 58B are formed to extend downward (in the X1 direction) from the back surfaces of the contact surfaces 53A and 53B. The nozzle portions 34A and 34B formed on the inner 3 are inserted into the inner cylindrical portions 58A and 58B. At this time, the nozzle portions 34A and 34B are configured to be movable to the inner cylinder portions 58A and 58B.

  Further, when the massage heads 5A and 5B are attached to the inner 3 and outer 4, as shown in FIG. 5, springs 7A and 7B are attached to the outer peripheral positions of the inner cylinders 58A and 58B, and the inner cylinders 58A and 58B. The sponges 8A and 8B are mounted in the interior.

  The springs 7A and 7B constitute the rotation urging mechanism 6 and have a function of urging the massage heads 5A and 5B in the X2 direction with respect to the inner 3. Further, the sponges 8A and 8B have a function of closing the holes 57A and 57B.

  Next, the rotation urging mechanism 6 will be described.

  The rotation urging mechanism 6 has a function of rotating the massage heads 5A and 5B using the pressing force as a driving force by pressing the massage heads 5A and 5B against the treatment portion. The rotation urging mechanism 6 includes engagement pins 45A and 45B, cam grooves 55A and 55B, springs 7A and 7B, and the like.

  The engaging pins 45 </ b> A and 45 </ b> B are disposed on the outer main body 41 of the outer 4 as described above, and their tip portions protrude inward from the inner wall of the outer main body 41. Cam grooves 55A and 55B are formed on the surfaces of cylindrical portions 51A and 51B.

  As shown in FIG. 3, the shape of the cam groove 55A formed in the cylindrical portion 51A is a shape (spiral shape) extending from the upper right direction to the lower left direction, and the cam formed in the cylindrical portion 51B. The shape of the groove 55B is a shape (spiral shape) extending from the upper left direction to the lower right side. That is, the cam groove 55A and the cam groove 55B have a symmetrical shape in the front view shown in FIG.

  The engaging pin 45A is engaged with the cam groove 55A having the above shape, and the engaging pin 45B is engaged with the cam groove 55B. Therefore, the engaging pins 45A and 45B and the cam grooves 55A and 55B cooperate to constitute a cylindrical cam.

  In this embodiment, the springs 7A and 7B are coil springs, and are arranged between the back surfaces of the contact surfaces 53A and 53B and the inner 3 (specifically, step portions 37A and 37B) as shown in FIG. It is installed. The massage heads 5A and 5B are biased in the direction of the arrow X2 with respect to the inner 3 by the elastic force of the springs 7A and 7B.

  Next, the operation of the massage apparatus 10A configured as described above will be described with reference to FIGS. 3A, FIG. 4A, and FIG. 5A show a state before the massage device 10A is pressed against the user's treatment section (hereinafter referred to as a pre-pressing state). (B), FIG. 4 (B), and FIG. 5 (B) have shown the state (henceforth a press state) which pressed the massage apparatus 10A to the user's treatment part.

  In the state before pressing, the springs 7A and 7B are in an extended state, and the massage heads 5A and 5B are in a state of moving in the direction of the arrow X2 with respect to the inner 3 and the outer 4. In this state before pressing, the head portions 52A, 52B of the massage heads 5A, 5B are in a state of protruding from the head receiving portion 43 of the outer 4.

  Even in the state before pressing, the springs 7A and 7B urge the massage heads 5A and 5B in the direction of the arrow X2, but a locking mechanism (not shown) is provided between the outer 4 and the massage heads 5A and 5B. Therefore, the massage heads 5A and 5B are further restricted from moving in the X2 direction from the positions shown in FIGS. 3 (A), 4 (A), and 5 (A).

  From this pre-pressing state, the user holds the grip portion 1 of the massage device 10A and presses the massage heads 5A and 5B against the treatment portion (for example, the corner of the eye). Accordingly, the massage heads 5A and 5B start moving in the arrow X1 direction against the elastic force of the springs 7A and 7B.

  At this time, the engagement pins 45A and 45B constituting the rotation urging mechanism 6 are engaged with the cam grooves 55A and 55B. For this reason, with the movement of the massage heads 5A and 5B in the X1 direction, the engagement pins 45A and 45B relatively advance in the cam grooves 55A and 55B.

  Since the cam grooves 55A and 55B have a spiral shape extending downward from above as described above, the massage head 5A is moved by moving the 45A and 45B relatively in the cam grooves 55A and 55B. , 5B is rotated.

  At this time, the cam groove 55A formed in the cylindrical portion 51A has a spiral shape extending from the upper right to the lower left, and symmetrically, the cam groove 55B formed in the cylindrical portion 51B is from the upper left. It has a spiral shape extending to the lower right.

  Therefore, when the engagement pins 45A and 45B move relatively in the cam grooves 55A and 55B, the rotation directions generated in the massage heads 5A and 5B are opposite to each other. Specifically, as shown in FIG. 4, when the massage heads 5A and 5B move in the X1 direction, the massage head 5A rotates as indicated by the arrow A1, and the massage head 5B has an arrow opposite to this. The rotation indicated by A2 occurs.

  When the massage device 10A is used, the contact surfaces 53A and 53B of the massage heads 5A and 5B are in contact with the user's treatment part (for example, the user's eyes). Therefore, by pressing the massage heads 5A and 5B against the treatment portion, a shiatsu effect is generated in the treatment portion.

  Further, by pressing the massage heads 5A and 5B against the treatment portion, the contact surfaces 53A and 53B are rotated with the pressing direction (X2 direction) as the rotation axis direction as described above. Therefore, the massage effect which twists a treatment part generate | occur | produces by rotation of this contact surface 53A, 53B. Furthermore, in this embodiment, since the rotation direction of the contact surface 53A and the rotation direction of the contact surface 53B are different (reverse) rotation directions, a massage effect that stretches the treatment portion by the contact surfaces 53A and 53 also occurs.

  As described above, according to the massage device 10A according to the present embodiment, the massage head 5A, 5B is pressed against the treatment portion, and the three massage processes of the treatment portion, the finger pressure of the treatment portion, the twist of the treatment portion, and the stretching are performed. It can be performed simultaneously. Therefore, according to the massage apparatus 10A according to the present embodiment, it is possible to easily perform a more effective massage as compared with a conventional massage simply by pressing.

  In particular, in the present embodiment, a massage effect that stretches the treatment portion is exhibited by making the rotation direction of the contact surface 53A different from the rotation direction of the contact surface 53B. be able to.

  In the present embodiment, the massage effect of extending the treatment portion using the position indicated by the arrow P1 in FIG. However, by using the position indicated by the arrow P2 in FIG. 4A and pressing this part against the treatment part, a massage effect that pinches the treatment part can be realized.

  On the other hand, when the massage device 10A is pulled away from the treatment portion after pressing, the springs 7A and 7B are elastically restored, the massage heads 5A and 5B move in the X2 direction and rotate in reverse (the massage head 5A rotates in the A2 direction, the massage head 5B Rotate in the A1 direction) and return to the state before pressing again.

  By the way, the torsion amount of the treatment part by the massage device 10A is determined by the rotation amount of the massage heads 5A and 5B (contact surfaces 53A and 53B). In the present embodiment, the rotation angles of the massage heads 5A and 5B (contact surfaces 53A and 53B) that rotate with the movement in the X1 direction are set to 5 ° to 180 °. This is because when the rotation angle of the contact surfaces 53A and 53B is less than 5 °, the amount of twisting is small, and the massage effect by twisting cannot be sufficiently exhibited. In addition, if the rotation angle of the contact surfaces 53A and 53B exceeds 180 °, the treatment portion is excessively twisted, and an effective massage effect cannot be obtained.

  Moreover, in order to improve the usability of the massage device 10A, it is necessary for the massage heads 5A and 5B to smoothly rotate when the user presses the massage device 10A against the treatment portion. Furthermore, in order for the massage heads 5A and 5B to rotate smoothly, it is necessary to optimize the spring constants of the springs 7A and 7B. In the present embodiment, the spring constants of the springs 7A and 7B are set to 0.1 N / mm or more and 0.5 N / mm or less.

  This is because when the spring constants of the springs 7A and 7B are less than 0.1 N / mm, the massage heads 5A and 5B move and rotate with a light pressing force, so that a sufficient acupressure effect cannot be obtained and contact is made. This is because slipping occurs between the surfaces 53A and 53B and the treatment portion (user's skin), and effective torsion and stretching processes are not performed.

  When the spring constants of the springs 7A and 7B are set to a value exceeding 0.5 N / mm, the massage heads 5A and 5B are not easily moved in the X1 direction even if the massage device 10A is pressed against the treatment portion. Therefore, the rotation amount of the contact surfaces 53A and 53B is also reduced. For this reason, the treatment part cannot be sufficiently twisted or stretched, and the massage effect is reduced.

  Moreover, in order to implement | achieve the massage by favorable torsion, it is necessary to optimize the relationship between the movement amount of X1 direction of massage head 5A, 5B at the time of use, and the rotation angle of contact surface 53A, 53B. That is, if the rotation angle of the contact surfaces 53A and 53B is small even though the amount of movement of the massage heads 5A and 5B in the X1 direction is long, the massage effect due to twisting is reduced. Conversely, if the rotation angle of the contact surfaces 53A, 53B is large relative to the amount of movement of the massage heads 5A, 5B in the X1 direction, slippage may occur between the skin and the contact surfaces 53A, 53B, or the skin of the treatment area Is excessively twisted or stretched, and the usability is reduced.

  Therefore, in this embodiment, when the massage heads 5A and 5B are moved 20 mm in the X1 direction, the massage heads 5A and 5B (contact surfaces 53A and 53B) are set to rotate by 45 °. By setting it as this structure, the balance of the acupressure effect accompanying the movement of X1 direction of massage head 5A, 5B and the massage effect by the twist and the extension accompanying rotation of massage head 5A, 5B can be optimized.

  In addition, the rotation angle with respect to the movement amount of the massage heads 5A and 5B in the X1 direction is not limited to the above embodiment, and can be appropriately adjusted. For example, in the present embodiment, the rotation angle can be set within a rotation range of 5 ° to 180 ° by 20 mm movement of the massage heads 5A and 5B.

  FIG. 6 shows a massage device 10B which is a modification of the massage device 10A shown in FIGS. In FIG. 6, configurations corresponding to the configurations of the massage device 10 </ b> A illustrated in FIGS. 1 to 5 are denoted by the same reference numerals, and description thereof is omitted.

  In the massage apparatus 10A described with reference to FIGS. 1 to 5, the rotation urging mechanism 6 is configured to rotate the massage heads 5A and 5B independently of each other. That is, the massage device 10A has a configuration in which cam grooves 55A and 55B are formed in both of the massage heads 5A and 5B as the rotation urging mechanism 6 and engagement pins 45A and 45B that engage with the cam grooves 55A and 45B are provided (FIG. reference).

  On the other hand, in the rotation urging mechanism 6 provided in the massage device 10B according to the modification, the cam groove 55A and the engagement pin 45A are provided only in the massage head 5A, and the cam groove and engagement are provided in the cylindrical portion 51B. It is set as the structure which does not provide a joint pin.

  In addition, a gear 61A is provided at the lower portion of the cylindrical portion 51A of the massage head 5A, and a gear 61B is provided at the lower portion of the cylindrical portion 51B of the massage head 5B. Then, the massaging head 5A and the massaging head 5B are integrally rotated by meshing the gear 61A and the gear 61B.

  In the rotation urging mechanism 6 configured as described above, only the massage head 5A having the engagement pin 45A and the cam groove 55A is rotated and urged when the massage heads 5A and 5B move in the X1 direction. However, since the massage head 5A and the massage head 5B are engaged with the gear 61A and the gear 61B, the massage head 5B also rotates when the massage head 5A rotates. Since the gear 61A and the gear 61B are directly meshed with each other and no intermediate gear is provided, the rotation direction of the massage head 5B is opposite to the rotation direction of the massage head 5A.

  Thus, according to this modification, the cam groove 55A having a complicated shape may be formed only in one massage head 5A, and it is not necessary to form a cam groove in the other massage head 5B. The gears 61A and 61B can be easily disposed and meshed with the massage heads 5A and 5B. Therefore, according to the massage apparatus 10B according to the present modification, it is possible to reduce the cost.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific embodiments described above, and various modifications are possible within the scope of the gist of the present invention described in the claims. It can be modified and changed.

  Specifically, in the above-described embodiment, two massage heads 5A and 5B are provided, and the massage heads 5A and 5B are configured to rotate in opposite directions by the rotation biasing mechanism 6. However, the number of massage heads is not limited to two, and a configuration in which three or more massage heads are provided is also possible. In this case, it is possible to obtain the above-described stretching massage effect by configuring at least a pair of massage heads (head portions) to rotate in opposite directions.

DESCRIPTION OF SYMBOLS 1 Gripping part 2 Gripping part main body 3 Inner 4 Outer 5 Massage head 6 Rotation biasing mechanism 6
7 Spring 10A, 10B Massage device 31A, 31B Inner body 33 Mounting part 41 Outer body 42 Fixing part 43 Head receiving part 44A, 44B Through hole 45A, 45B Engagement pin 51A, 51B Outer cylinder part 52A, 52B Head part 53A, 53B Contact surface 54A, 54B, 56A, 56B Convex part 55A, 55B Cam groove 58A, 58B Inner cylinder part 60A, 60B Gear 65A, 65B Rotation center axis

Claims (7)

A gripping part;
A plurality of head portions having a contact surface to be pressed by the treatment portion and provided so as to be movable in the pressing direction with respect to the grip portion;
A rotation urging mechanism that rotates the plurality of head portions with the pressing direction as a rotation axis direction;
A massage apparatus characterized by comprising:   The massaging apparatus according to claim 1, wherein at least a pair of the head portions among the plurality of head portions rotate in directions opposite to each other.   The massage apparatus according to claim 1 or 2, wherein a rotation angle of the head portion is set to 5 ° or more and 180 ° or less.   The massage device according to any one of claims 1 to 3, wherein a plurality of convex portions are annularly arranged on the contact surface. Each of the head parts is provided with a gear and meshed with it,
The massage device according to any one of claims 1 to 4, wherein the rotation urging mechanism rotates at least one of the head portions. The rotation biasing mechanism is
A cam groove provided in either the grip portion or the head portion;
An engagement member provided on either the grip portion or the head portion and engaged with the cam groove;
The massage apparatus according to claim 1, further comprising an elastic member that biases the head portion in a direction away from the grip portion.   The massage apparatus according to claim 6, wherein a spring is used as the elastic member, and a spring constant of the spring is set to 0.1 N / mm or more and 0.5 N / mm or less.

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