Massage machine attachments and massage devices

Abstract

This invention provides an attachment and massage device that, when attached to a massage machine, can perform massages other than percussive massage. [Solution] The attachment 31 is used in a massage machine 11 equipped with a reciprocating body 13 that moves linearly back and forth to perform a tapping massage on the part of the user to be treated. The attachment 31 comprises a treatment body 33 and a conversion mechanism 34 that converts the reciprocating motion of the reciprocating body 13 into rotational motion of the treatment body 33.

Description

Technical Field

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[0001] The present invention relates to an attachment for a massage machine and a massage device.

Background Art

[0002] Patent Document 1 discloses a hand-held massage machine that a user holds in the hand and massages a treatment site. This massage machine has a massage member that moves back and forth linearly, a drive motor that drives the massage member, and a conversion mechanism that converts the rotational motion of the output shaft of the drive motor into the back-and-forth motion of the massage member.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The massage machine of Patent Document 1 can only perform so-called "pounding massage" and is a device specialized for limited uses. Therefore, when it is desired to perform a massage other than pounding, it is necessary to use another massage machine. [[ID=3,7]]

[0005] An object of the present disclosure is to provide an attachment for a massage machine and a massage device that can perform a massage other than pounding massage by being attached to the massage machine.

Means for Solving the Problems

[0006] (1) The attachment for a massage machine according to the present disclosure is an attachment used for a massage machine provided with a reciprocating body that linearly reciprocates to perform a pounding massage on a user's treatment part, Treatment body and, The system includes a conversion mechanism that converts the reciprocating motion of the reciprocating body into the rotational motion of the treatment body.

[0007] (2) In the attachment of (1) above, preferably, the conversion mechanism includes a first conversion member connected to the reciprocating body and moving back and forth together with the reciprocating body, A second conversion member connected to the treatment body and rotating together with the treatment body, The device includes a third conversion member, one end of which is pivotably connected to the first conversion member, and the other end of which is pivotably connected to the second conversion member at a position eccentric with respect to the rotation axis of the treatment body.

[0008] (3) In the attachment of (2) above, preferably the conversion mechanism further comprises a holding member that holds the first conversion member in contact with the reciprocating body.

[0009] (4) In the attachment of (3) above, preferably the holding member includes a biasing member that biases the first conversion member toward the reciprocating body in the direction of the reciprocating motion of the reciprocating body.

[0010] (5) In the attachment of (3) above, preferably the holding member includes an adsorption member that attracts the first conversion member to the reciprocating body by magnetic force.

[0011] (6) In any one of the attachments described in (1) to (5) above, preferably, the reciprocating body is a second treatment body that protrudes outward from the massage machine and performs a tapping massage on the part of the user to be treated.

[0012] (7) The attachment in (6) above preferably comprises an attachment body that incorporates the conversion mechanism, The attachment body has an insertion opening for inserting the reciprocating body and a connecting portion connected to the massage machine, and a storage space for housing the reciprocating body.

[0013] (8) In any one of the attachments (1) to (7) above, preferably, the rotation axis of the treatment body is inclined with respect to the center line of the reciprocating body along the direction of the reciprocating motion of the reciprocating body.

[0014] (9) In any one of the attachments (1) to (8) above, preferably, a plurality of the treatment bodies are arranged at intervals in the circumferential direction around the center line of the reciprocating body along the direction of the reciprocating motion of the reciprocating body.

[0015] (10) In the attachment of (9) above, preferably, the rotation axes of the plurality of treatment bodies are inclined so as to approach the center line toward the tip side of the treatment body.

[0016] (11) The massage device of the present disclosure includes the attachment according to any one of (1) to (10) above, a connected portion to which the attachment is detachably connected, and a massage machine having a reciprocating body that reciprocates linearly to perform a tapping massage on a treatment portion of a user.

Effect of the Invention

[0017] According to the attachment of the present disclosure, a massage other than a tapping massage can be performed by attaching it to a massage machine.

Brief Description of the Drawings

[0018] [Figure 1] It is a perspective view of a massage device including an attachment and a massage machine according to an embodiment. [Figure 2] It is a perspective view of a massage device showing a state where the attachment is removed from the massage machine. [Figure 3] It is a front view of the massage device. [Figure 4] It is a cross-sectional view of the massage device. [Figure 5] It is a perspective view of the inside of the massage machine. [Figure 6]It is a perspective view of the attachment conversion mechanism and the treatment body. [Figure 7] It is an exploded perspective view of the attachment conversion mechanism and the treatment body. [Figure 8] It is a rear view for explaining the operation of the attachment conversion mechanism.

Mode for Carrying Out the Invention

[0019] Hereinafter, embodiments of the present disclosure will be described based on the drawings. FIG. 1 is a perspective view of a massage device including an attachment and a massage machine according to an embodiment. FIG. 2 is a perspective view of the massage device showing a state where the attachment is removed from the massage machine. FIG. 3 is a front view of the massage device. FIG. 4 is a cross-sectional view of the massage device. As shown in FIGS. 1 and 2, the massage device 10 of the present embodiment is configured by attaching an attachment 31 to a massage machine 11. That is, the massage device 10 includes a massage machine 11 and an attachment 31.

[0020] The massage machine 11 performs a massage on the user by itself. Specifically, the massage machine 11 of the present embodiment performs a "tapping massage" on the user by itself. In contrast, the attachment 31 performs a massage on the user by being attached to the massage machine 11 and using the power of the massage machine 11. The attachment 31 performs a massage different from the tapping massage by the massage machine 11. Specifically, the attachment 31 of the present embodiment performs a massage such as "rubbing, pinching, or kneading".

[0021] (Configuration of the massage machine 11) As shown in FIGS. 2 to 4, the massage machine 11 has a casing 12, a treatment body 13, and a drive mechanism 14. The casing 12 constitutes the outer shell of the massage machine 11. The casing 12 is formed of synthetic resin, metal, or the like. The casing 12 includes a hand-held portion 12a and a head portion 12b.

[0022] The handle portion 12a is formed in a slightly rounded cylindrical shape. The handle portion 12a is formed to a size (length and thickness) that can be grasped by the user with one hand. The head portion 12b is formed in a cylindrical shape and protrudes from the outer surface of the handle portion 12a. Therefore, the handle portion 12a and the head portion 12b are in an intersecting relationship. When the longitudinal direction of the handle portion 12a is oriented vertically, the head portion 12b protrudes approximately horizontally from the handle portion 12a. Therefore, the handle portion 12a and the head portion 12b are perpendicular to each other.

[0023] The handle 12a is equipped with an operation button 12d. This operation button 12d allows the user to perform at least one of the following actions: turn the power of the massage machine 11 on or off, turn the massage on or off, or switch the intensity of the massage.

[0024] In the following description, the direction in which the longitudinal direction of the handle portion 12a faces is defined as the up-down direction, and the direction in which the head portion 12b faces (the direction along the center line C1 of the cylindrical shape of the head portion 12b (see Figures 3 and 4)) is defined as the front-back direction. The head portion 12b is assumed to protrude forward from the handle portion 12a. In the following description, the left-right direction is defined as the left-right direction as seen from the perspective of a user holding the handle portion 12a in their hand with the head portion 12b facing forward (see Figure 3). However, these directions are merely illustrative and do not limit the present invention. Therefore, the up-down direction, front-back direction, and left-right direction can be reinterpreted as mutually orthogonal "first direction," "second direction," "third direction," etc., and each direction such as up, down, front, back, left, right can be reinterpreted as "one side" and "the other side" of the first to third directions.

[0025] The head portion 12b is positioned slightly above the vertical center of the handle portion 12a. For example, the center line C1 of the head portion 12b is located in the range of 3 / 5 to 2 / 3 of the vertical length of the handle portion 12a from the lower end of the handle portion 12a. Therefore, the user can easily grasp the lower part of the handle portion 12a with their hand. The tip of the head portion 12b is open. The treatment body 13 protrudes forward from the opening of the head portion 12b.

[0026] The treatment body 13 is the part that performs tapping massage on the user. The treatment body 13 moves back and forth linearly along the center line C1 of the head portion 12b. The treatment body 13 is formed in a roughly cylindrical shape. The center line of the cylindrical shape of the treatment body 13 and the center line C1 of the head portion 12b are roughly coincided. In Figures 3, 4, etc., the same symbol C1 is used for the center line of the treatment body 13 and the center line of the head portion 12b.

[0027] The outer circumference of the tip of the treatment body 13 has an annular flange portion 13a that protrudes radially. The treatment body 13 performs a tapping massage on the user with its tip surface. As shown in Figure 4, a guide portion 12c is provided inside the head portion 12b to guide the reciprocating motion of the treatment body 13. The guide portion 12c is formed in a cylindrical shape, and the treatment body 13 is slidably fitted inside it. The amplitude of the reciprocating motion of the treatment body 13 is, for example, about 10 mm.

[0028] As shown in Figure 2, the outer diameter of the tip side of the head portion 12b is smaller than the outer diameter of the base side (handle portion 12a side). A male thread 12b1 is formed on the outer circumferential surface of the tip side of the head portion 12b. This male thread 12b1 is used to connect the attachment 31. Therefore, the male thread 12b1 of the head portion 12b constitutes a connecting portion for detachably connecting the attachment 31.

[0029] Figure 5 is a perspective view of the inside of the massage machine. As shown in Figures 4 and 5, the drive mechanism 14 of the massage machine 11 causes the treatment body 13 to perform a reciprocating motion. The drive mechanism 14 includes a drive source 16, a drive unit 17, and a power transmission mechanism 18. The drive mechanism 14 is housed inside the handgrip portion 12a of the casing 12. The massage machine 11 in this embodiment is electric and is equipped with a rechargeable battery (secondary battery) as the drive source 16. The drive source 16 is housed on the lower side of the handgrip portion 12a. The drive source 16 may be a primary battery such as a dry cell battery. Alternatively, the drive source of the massage machine 11 may be a commercial power supply. In this case, the massage machine 11 is equipped with a plug and power cord that are plugged into a commercial power outlet.

[0030] The drive unit 17 is composed of an electric motor. The electric motor 17 is powered by a battery 16, which is the power source. The electric motor 17 is housed on the upper side of the handheld part 12a. The output shaft 17a of the electric motor 17 protrudes downward. The massage machine 11 is balanced vertically by positioning the battery 16 on the lower side of the handheld part 12a of the casing 12 and the electric motor 17 on the upper side. In addition, by positioning the battery 16, which is heavier than the electric motor 17, on the lower side, the massage machine 11 can be easily handled while holding the handheld part 12a.

[0031] The power transmission mechanism 18 converts the rotational motion of the output shaft 17a of the electric motor 17 into linear reciprocating motion of the treatment body 13 and transmits it. The power transmission mechanism 18 in this embodiment is a crank mechanism. Specifically, the power transmission mechanism 18 has an eccentric member 18a attached to the output shaft 17a of the electric motor 17. The eccentric member 18a rotates together with the output shaft 17a. The eccentric member 18a has a connecting shaft 18a1 that is eccentric with respect to the output shaft 17a. The axis of the connecting shaft 18a1 is parallel to the axis of the output shaft 17a.

[0032] The power transmission mechanism 18 has a crank arm 18b. The crank arm 18b is formed in the shape of a long rod and is arranged along the front-rear direction. One end (rear end) of the crank arm 18b is pivotably connected to the connecting shaft 18a1 of the eccentric member 18a. The other end (front end) of the crank arm 18b is pivotably connected to the treatment body 13 via the connecting shaft 18c.

[0033] Therefore, when the output shaft 17a of the electric motor 17 rotates, the eccentric member 18a rotates integrally, and the crank arm 18b connected to the connecting shaft 18a1 of the eccentric member 18a is repeatedly pushed and pulled back and forth. This movement of the crank arm 18b causes the treatment body 13 to reciprocate linearly in the back-and-forth direction along the guide portion 12c. In this state, by applying the front surface of the treatment body 13 to the area of ​​the user to be treated, a tapping massage can be performed. In this embodiment, the treatment body 13 is also referred to as the "reciprocating body".

[0034] As described above, the massage machine 11 performs a "tapping massage." However, some users may desire a massage other than a "tapping massage," and the massage machine 11 alone cannot provide such a massage. Therefore, in this embodiment, an attachment 31 is attached to the massage machine 11 to provide a massage other than a "tapping massage." The details of the attachment 31 will be described below.

[0035] (Configuration of Attachment 31) As shown in Figures 1 to 4, the attachment 31 comprises an attachment body 32, a treatment body 33, and a conversion mechanism 34. The attachment body 32 is the outer shell of the attachment 31. The treatment body 33 is the part that provides massage to the user. The conversion mechanism 34 is the part that converts the power of the massage machine 11 and transmits it to the treatment body 33.

[0036] The attachment body 32 has a case 35. A conversion mechanism 34 is housed inside this case 35. The case 35 is made of synthetic resin or metal, etc. The treatment body 33 protrudes from the front of the case 35. The rear part 35a of the case 35 is formed in a cylindrical shape and is arranged along the front-to-back direction.

[0037] The front portion 35b of case 35 is formed in a tetrahedron shape (triangular pyramidal shape). The corners of the tetrahedron are rounded into a curved shape. The front surface of case 35 (the outer surface of the front wall 35b1) is made up of one face of the tetrahedron. Therefore, case 35 is formed in a roughly triangular shape when viewed from the front. The side surface of the front portion 35b of case 35 (the outer surface of the side wall 35b2) is made up of the other three faces of the tetrahedron. The cylindrical portion of the rear portion 35a of case 35 protrudes backward from one vertex located at the rear end of the tetrahedron.

[0038] The rear portion 35a of the cylindrical case 35 constitutes a connecting portion 41 to the massage machine 11. An insertion opening 35a1 is formed at the rear end of the connecting portion 41. When the attachment 31 is attached to the massage machine 11, the treatment body 13 of the massage machine 11 is inserted into the insertion opening 35a1 of the attachment 31.

[0039] An internal thread 35a2 is formed on the inner circumferential surface of the rear end of the connecting portion 41. This internal thread 35a2 can be fastened to the external thread 12b1, which is the part to be connected to the head portion 12b. When the treatment body 13 of the massage machine 11 is inserted into the insertion opening 35a1 of the connecting portion 41 of the attachment 31, and the external thread 35a2 of the connecting portion 41 is fastened to the external thread 12b1, the attachment 31 is connected to the massage machine 11. The outer diameter of the connecting portion 41 is approximately the same as the outer diameter of the head portion 12b behind the external thread 12b1. Therefore, when the attachment 31 is connected to the massage machine 11, the outer surface of the head portion 12b and the outer surface of the connecting portion 41 are smoothly connected.

[0040] When the attachment 31 is connected to the massage machine 11, at least a portion (the front end) of the treatment body 13 of the massage machine 11 is positioned inside the connecting portion 41 of the attachment 31. Therefore, the attachment body 32 (case 35) has a storage space S for accommodating the treatment body 13 of the massage machine 11.

[0041] The front portion 35b of the case 35, which is formed in a tetrahedral shape, constitutes a support portion 42 that supports the treatment body 33 and the conversion mechanism 34. Inside the support portion 42 (case 35), the conversion mechanism 34 and at least a part (front end) of the treatment body 13 of the massage machine 11 are arranged. Therefore, the support portion 42 has a storage space S for accommodating the conversion mechanism 34 and the treatment body 13 of the massage machine 11.

[0042] As shown in Figure 3, the front wall 35b1 of the case 35 is formed in a roughly triangular shape when viewed from the front. In the front wall 35b1 of the case 35, as shown in Figure 4, through holes 35b3 are formed near the three corners, penetrating in the front-to-back direction. The shaft portion 33a of the treatment body 33, which will be described next, passes through these through holes 35b3.

[0043] Figure 6 is a perspective view of the attachment conversion mechanism and treatment unit. Figure 7 is an exploded perspective view of the attachment conversion mechanism and treatment unit. Figure 8 is a rear view illustrating the operation of the attachment conversion mechanism. The support portion 42 has a support member 43 disposed inside the case 35. The support member 43 has a substrate 43a and a boss portion 43b. As shown in Figure 4, the substrate 43a is positioned behind the front wall 35b1 of the case 35 and is fixed to the case 35 by screws or the like. The substrate 43a is formed in a substantially triangular shape, following the substantially triangular shape of the front wall 35b1 of the case 35. An opening 43c is formed in the center of the substrate 43a. Boss portions 43b are provided near the three corners of the substrate 43a. The boss portions 43b are formed in a cylindrical shape. The boss portions 43b are positioned to communicate with a through hole 35b3 formed in the front wall 35b1 of the case 35.

[0044] The treatment body 33 of the attachment 31 protrudes forward from the front wall 35b1 of the case 35. In this embodiment, the attachment 31 has a plurality of treatment bodies 33. Specifically, the attachment 31 has three treatment bodies 33. The three treatment bodies 33 are arranged near the three corners of the front surface of the case 35, which is formed in a substantially triangular shape. More specifically, the three treatment bodies 33 are arranged circumferentially at intervals around the center line C1 of the treatment body 13 in the massage machine 11.

[0045] Each treatment body 33 rotates around a predetermined rotation axis C2. As shown in Figure 4, the rotation axis C2 of each treatment body 33 is inclined with respect to the center line C1 of the treatment body 13 in the massage machine 11. Specifically, the rotation axis C2 of each treatment body 33 is inclined to be closer to the center line C1 of the treatment body 13 as it approaches the tip (front end) of the treatment body 33.

[0046] The treatment body 33 includes a shaft portion 33a, a base portion 33b, and a projection 33c. The shaft portion 33a is formed in a cylindrical shape centered on the rotation axis C2 of the treatment body 33. The shaft portion 33a is inserted into the boss portion 43b of a support member 43 arranged inside the case 35 and is rotatably supported. The shaft portion 33a protrudes from the inside to the outside of the case 35 through a through hole 35b3 formed in the front wall 35b1 of the case 35.

[0047] The base 33b of the treatment body 33 is connected to the front end of the shaft 33a. The base 33b is formed in a disc shape and has a center that is concentric with the rotation axis C2 of the shaft 33a. The projection 33c is provided on the front surface of the base 33b. The projection 33c protrudes forward from the front surface of the base 33b. The projection 33c is cylindrical or conical and has a hemispherical tip. Multiple projections 33c (five in the illustrated example) are provided at circumferential intervals around the rotation axis C2. The multiple projections 33c perform massage by directly contacting the treatment area of ​​the user with their tips.

[0048] The projections 33c of the treatment body 33 are formed from an elastic rubber or synthetic resin material. These projections 33c and at least a portion of the base 33b, including the front surface, are integrally formed from the same material. The number of projections 33c may be one or more than five. The material of the projections 33c and the base 33b is not particularly limited and may be made of metal, wood, etc.

[0049] The conversion mechanism 34 includes a first conversion member 45, a second conversion member 47, and a third conversion member 46. As shown in Figure 4, the first conversion member 45 is positioned in front of the treatment body 13 of the massage machine 11 connected to the attachment 31, and is in contact with the front surface of the treatment body 13. The first conversion member 45 has a base portion 45a and a guided portion 45b. The base portion 45a is formed in a plate shape. The rear surface of the base portion 45a is in contact with the treatment body 13 of the massage machine 11.

[0050] The guided portion 45b protrudes forward from the front surface of the base portion 45a. The guided portion 45b is formed in a cylindrical shape. A guide portion 35b4 is provided on the rear surface of the front wall 35b1 of the case 35 of the attachment 31. The guide portion 35b4 is formed in a cylindrical shape and protrudes rearward from the rear surface of the front wall 35b1. The inner diameter of the guide portion 35b4 is slightly larger than the outer diameter of the guided portion 45b.

[0051] Both the guided portion 45b and the guide portion 35b4 are arranged concentrically with the center line C1 of the treatment body 13. The guided portion 45b of the first conversion member 45 is slidably fitted into the guide portion 35b4 of the case 35. As a result, the first conversion member 45 is guided to move in the front-rear direction by the guide portion 35b4.

[0052] The conversion mechanism 34 has the same number of third conversion members 46 as there are treatment bodies 33. In this embodiment, the conversion mechanism 34 has three third conversion members 46 corresponding to three treatment bodies 33. The third conversion members 46 are formed in a rod shape. The rear end of each third conversion member 46 is pivotably connected to the base portion 45a of the first conversion member 45. Specifically, the base portion 45a has three spherical recesses 45a1 (see Figures 4 and 7). The three recesses 45a1 are spaced apart in the circumferential direction around the center line C1 of the treatment body 13 of the massage machine 11. The rear end of each third conversion member 46 is spherical and fitted into the recesses 45a1 of the base portion 45a. As a result, the third conversion member 46 is pivotably connected to the first conversion member 45.

[0053] The second conversion member 47 is provided at the rear end of the shaft portion 33a of each treatment body 33. The second conversion member 47 rotates together with the shaft portion 33a around the rotation axis C2. The front end of the third conversion member 46 is pivotably connected to the second conversion member 47. Specifically, the second conversion member 47 has a spherical recess 47a (see Figures 6 and 7). The recess 47a is formed at an eccentric position with respect to the rotation axis C2 of the shaft portion 33a. The front end of the third conversion member 46 is spherical and is fitted into the recess 47a of the second conversion member 47. As a result, the third conversion member 46 is pivotably connected to the second conversion member 47.

[0054] The conversion mechanism 34 includes holding members 48 and 49 that hold the first conversion member 45 in contact with the treatment body 13 of the massage machine 11. The conversion mechanism 34 of this embodiment comprises a first holding member 48 and a second holding member 49. As shown in Figure 4, the first holding member 48 is a biasing member positioned between the front surface of the base portion 45a of the first conversion member 45 and the rear surface of the case 35 of the attachment 31. The first holding member 48 is a compression coil spring that biases the first conversion member 45 backward and presses it against the treatment body 13. As a result, the first holding member 48 can hold the first conversion member 45 in contact with the treatment body 13 of the massage machine 11.

[0055] The first retaining member 48 is positioned inside the cylinders of the guide portion 35b4 and the guided portion 45b. Therefore, the first retaining member 48 is prevented from falling out from between the base portion 45a and the case 35, and contact with other surrounding parts is prevented.

[0056] The second holding member 49 is a magnet provided on the rear surface of the base portion 45a of the first conversion member 45. The front surface of the treatment body 13 of the massage machine 11 is made of a magnetic material. Therefore, the second holding member 49 is attracted to the front surface of the treatment body 13 by magnetic force. This allows the first conversion member 45 to be held in contact with the treatment body 13 of the massage machine 11.

[0057] The second holding member 49, which is made of a magnet, may be provided on the treatment body 13 side. In other words, the massage machine 11 may be equipped with the second holding member 49. In this case, the back surface of the first conversion member 45 is made of a magnetic material. The second holding member 49 may also be provided on both the first conversion member 45 and the treatment body 13.

[0058] The second holding member 49 can attract the first conversion member 45 and the treatment body 13 by magnetic force even if they are not in contact. Therefore, for example, when attaching the attachment 31 to the massage machine 11, when the treatment body 13 of the massage machine 11 is inserted into the connecting portion 41 of the attachment 31, the second holding member 49 attracts the first conversion member 45 and the treatment body 13, and maintains the state in which the treatment body 13 is inserted into the connecting portion 41. Therefore, it is possible to prevent the attachment 31 from being accidentally dropped during the operation of attaching the attachment 31 to the massage machine 11.

[0059] Figure 8 is a rear view illustrating the operation of the attachment conversion mechanism. The conversion mechanism 34 of the attachment 31 operates as follows. As shown in Figures 4 and 8, when the drive mechanism 14 of the massage machine 11 is activated and the treatment body 13 is moved back and forth, the first conversion member 45, which is in contact with the treatment body 13, also moves back and forth. The rear end of the third conversion member 46 is pushed and pulled back and forth by the reciprocating motion of the first conversion member 45. As a result, as shown in Figure 8, the front end of the third conversion member 46 causes the second conversion member 47 to reciprocate and rotate around the rotation axis C2 of the treatment body 33 at a predetermined rotation angle θ. As a result, the treatment body 33 to which the second conversion member 47 is fixed also rotates back and forth around the rotation axis C2. By pressing the protrusions 33c of the multiple treatment bodies 33 against the area to be treated on the user, massage can be performed on the area to be treated by the rotational motion of the treatment bodies 33.

[0060] Furthermore, the treatment body 33 of the attachment 31 can perform massage by pressing and rubbing (moving the skin, etc., along its surface) the area to be treated, that is, rubbing massage and kneading massage. Also, as shown in Figure 3, as multiple treatment bodies 33 each rotate around the rotation axis C2, the protrusions 33c of any of the multiple treatment bodies 33 move closer to or further apart from each other. This allows the treatment bodies 33 to perform kneading massage.

[0061] Based on the above, in this embodiment, by attaching the attachment 31 to the massage machine 11 that performs percussive massage, it becomes possible to perform massages other than percussive massage. Therefore, it is not necessary to own a separate massage machine 11 dedicated to performing massages other than percussive massage.

[0062] The multiple treatment bodies 33 of the attachment 31 rotate simultaneously in the same direction, as shown by arrows a and b in Figure 3. For example, when one treatment body 33 rotates in the direction of arrow a, the other treatment bodies 33 also rotate in the direction of arrow a, and when one treatment body 33 rotates in the direction of arrow b, the other treatment bodies 33 also rotate in the direction of arrow b. However, contrary to this, the multiple treatment bodies 33 may include some that rotate in different directions from each other. For example, when one or two treatment bodies 33 rotate in the direction of arrow a, the other two or one treatment bodies 33 may rotate in the direction of arrow b, and when one or two treatment bodies 33 rotate in the direction of arrow b, the other two or one treatment bodies 33 may rotate in the direction of arrow a.

[0063] The attachment 31 of this embodiment includes a first retaining member 48 made of a biasing member and a second retaining member 49 made of a magnet as retaining members. This provides the following effects.

[0064] When performing a massage using the attachment 31, if the treatment body 33 is pressed firmly against the area being treated by the user, the treatment body 33 may become difficult to rotate around the rotation axis C2. In this case, the first conversion member 45 of the conversion mechanism 34 becomes difficult to move backward in accordance with the backward movement of the treatment body 13, resulting in the treatment body 13 repeatedly striking the first conversion member 45, which generates noise.

[0065] If the retaining member is only a spring (first retaining member) 48, increasing the biasing force of the spring 48 can forcibly move the first conversion member 45 backward in accordance with the backward movement of the treatment body 13, thereby resolving the noise problem mentioned above. However, in this case, the treatment body 13 needs to push the first conversion member 45 with greater force against the spring 48, which increases the load on the motor 17 of the massage machine 11. Therefore, a motor with a higher output must be used for the motor 17, which leads to a larger size and increased cost for the massage machine 11.

[0066] In this embodiment, since the retaining member is equipped with a magnet (second retaining member) 49 in addition to the spring 48, the first conversion member 45 can be moved backward by the retraction of the treatment body 13 by utilizing the magnetic force, even without excessively increasing the biasing force of the spring 48. Therefore, it is possible to suppress the load on the motor 17 from becoming excessive.

[0067] Conversely, if the only retaining member is a magnet (second retaining member) 49, increasing its magnetic force would allow the first conversion member 45 to be forcibly moved backward in accordance with the backward movement of the treatment body 13, thereby resolving the noise problem described above. However, since the force moving the first conversion member 45 backward is solely due to the driving force of the motor 17, the load on the motor 17 would increase, as described above.

[0068] In this embodiment, since a spring 48 is provided in addition to the magnet 49 as a holding member, the first conversion member 45 can be moved backward by the retraction of the treatment body 13 by utilizing the biasing force of the spring 48, even without excessively increasing the magnetic force of the magnet 49. Therefore, it is possible to suppress the load on the motor 17 from becoming excessive. However, the attachment 31 may be equipped with only one of the first and second retaining members 48, 49.

[0069] (Effects of the embodiment) (1) The massage machine 11 in the above embodiment includes a reciprocating body (treatment body) 13 that moves linearly back and forth to perform a tapping massage on the part of the user to be treated. The attachment 31 includes a treatment body 33 and a conversion mechanism 34 that converts the reciprocating motion of the reciprocating body 13 into rotational motion of the treatment body 33. Therefore, the massage device 10 with the attachment 31 attached to the massage machine 11 can perform massages other than tapping massages. As a result, a variety of massages can be performed according to the user's wishes, and the need to prepare multiple massage machines for each type of massage can be reduced.

[0070] (2) The conversion mechanism 34 of the above embodiment includes a first conversion member 45 connected to the reciprocating body 13 and moving back and forth together with the reciprocating body 13, a second conversion member 47 connected to the treatment body 33 and moving back and forth together with the treatment body 33, and a third conversion member 46, one end of which is pivotably connected to the first conversion member 45 and the other end of which is pivotably connected to the second conversion member 47 at a position eccentric with respect to the rotation axis C2 of the treatment body 33. As a result, the reciprocating motion of the reciprocating body 13 can be converted into the rotational motion of the treatment body 33, enabling massage other than percussive massage.

[0071] (3) The conversion mechanism 34 of the above embodiment further includes holding members 48 and 49 that hold the first conversion member 45 in contact with the reciprocating body 13. Therefore, the first conversion member 45 can be reliably reciprocated together with the reciprocating body 13.

[0072] (4) The holding member of the above embodiment includes a biasing member 48 that biases the first conversion member 45 toward the reciprocating body 13 in the direction of the reciprocating motion of the reciprocating body 13. Therefore, contact between the reciprocating body 13 and the first conversion member 45 can be maintained by the biasing force of the biasing member 48, even without mechanical coupling between the reciprocating body 13 and the first conversion member 45 (coupling by locking or fitting, coupling by fasteners).

[0073] (5) The holding member in the above embodiment includes an adsorption member 49 that attracts the first conversion member 45 to the reciprocating body 13 by magnetic force. Therefore, contact between the reciprocating body 13 and the first conversion member 45 can be maintained by magnetic force without mechanical coupling (coupling by engagement or fitting, coupling by fasteners) between the reciprocating body 13 and the first conversion member 45. However, the holding member may be a mechanical coupling between the reciprocating body 13 and the first conversion member 45, rather than a biasing member or adsorption member as described above.

[0074] (6) The reciprocating body 13 in the above embodiment is a treatment body (second treatment body) 13 that protrudes outward from the massage machine 11 and performs a tapping massage on the part of the user to be treated. Therefore, the treatment body 13 can be driven by using the treatment body 13 provided in the massage machine 11 as a reciprocating body.

[0075] (7) The massage device 10 of the above embodiment includes an attachment body 32 that incorporates a conversion mechanism 34. The attachment body 32 has an insertion opening 35a1 for inserting the reciprocating body 13 and a connecting part 41 that is connected to the massage machine 11, and a housing space S for housing the reciprocating body 13. Therefore, by connecting the attachment body 32 to the massage machine 11, the reciprocating body 13 can be housed in the attachment body 32 and acted upon by the conversion mechanism 34.

[0076] (8) In the above embodiment, the rotation axis C2 of the treatment body 33 of the attachment 31 is inclined with respect to the center line C1 of the reciprocating body 13, which is in line with the direction of the reciprocating motion of the reciprocating body 13. Therefore, the direction in which the treatment body 33 is applied can be set in various ways depending on the type of massage.

[0077] (9) In the above embodiment, a plurality of treatment bodies 33 are arranged circumferentially at intervals around the center line C1 of the reciprocating body 13, which is in the direction of the reciprocating motion of the reciprocating body 13. Therefore, the massage effect can be enhanced by the plurality of treatment bodies 33.

[0078] (10) In the above embodiment, the rotational axes C2 of the multiple treatment bodies 13 are inclined such that the tip of each treatment body 13 is closer to the center line C1. This configuration allows the multiple treatment bodies 33 to act in a concentrated manner on a specific area of ​​the user to be treated.

[0079] Although embodiments have been described above, it should be understood that various modifications to the form and details are possible without departing from the spirit and scope of the claims. The configuration of the massage machine 11 is merely an example, and is not particularly limited as long as the reciprocating body (treatment body) 13 moves back and forth in a linear fashion. Furthermore, "linear" does not have to be a perfectly straight line; for example, it includes reciprocating motion in a slightly curved arc. The reciprocating body that transmits power to the conversion mechanism 34 of the attachment 31 does not have to be the treatment body 13 of the massage machine 11. For example, the reciprocating body may be separate from the treatment body 13 of the massage machine 11 and move back and forth in order to operate the treatment body 13.

[0080] The number of treatment bodies 33 on the attachment 31 is not limited to three, but may be one or more than three. The conversion mechanism 34 that rotates the treatment bodies 33 on the attachment 31 around the rotation axis C2 is not limited to the above embodiment. For example, the conversion mechanism 34 can employ a mechanism that uses a reciprocating body 13 to cause a rack to move linearly and converts that into rotational motion of the treatment body 33 using a gear such as a pinion that meshes with the rack, or a mechanism that uses a reciprocating body 13 to swing a link and convert that into rotational motion of the treatment body 33. [Explanation of symbols]

[0081] 10: Massage device 11: Massage machine 13: Treatment body (reciprocating body; second treatment body) 31: Attachment 32: Attachment body 33: Treatment body 34: Conversion mechanism 35a1: Insertion port 41:Connection part 45: First conversion member 46: Third conversion member 47: Second conversion member 48: Holding member (biasing member; first holding member) 49: Holding member (adsorption member; second holding member) C1: Center line C2:Rotation axis center S: Storage space

Claims

1. An attachment used in a massage machine equipped with a reciprocating body that moves linearly back and forth to perform tapping massage on the part of the user being treated, Treatment body and, An attachment comprising a conversion mechanism that converts the reciprocating motion of the reciprocating body into the rotational motion of the treatment body.

2. The conversion mechanism includes a first conversion member connected to the reciprocating body and moving back and forth together with the reciprocating body, A second conversion member connected to the treatment body and rotating together with the treatment body, The attachment according to claim 1, comprising: a third conversion member having one end pivotably connected to the first conversion member and the other end pivotably connected to the second conversion member at a position eccentric with respect to the rotation axis of the treatment body.

3. The attachment according to claim 2, wherein the conversion mechanism further comprises a holding member that holds the first conversion member in contact with the reciprocating body.

4. The attachment according to claim 3, wherein the holding member includes a biasing member that biases the first conversion member toward the reciprocating body in the direction of the reciprocating motion of the reciprocating body.

5. The attachment according to claim 3, wherein the holding member includes an adsorption member that attracts the first conversion member to the reciprocating body by magnetic force.

6. The attachment according to any one of claims 1 to 5, wherein the reciprocating body is a second treatment body that protrudes outward from the massage machine and performs a tapping massage on the part of the user to be treated.

7. The attachment body includes the aforementioned conversion mechanism, The attachment according to claim 6, wherein the attachment body has an insertion opening for inserting the reciprocating body and a connecting portion connected to the massage machine, and a storage space for housing the reciprocating body.

8. The attachment according to any one of claims 1 to 5, wherein the rotation axis of the treatment body is inclined with respect to the center line of the reciprocating body along the direction of the reciprocating motion of the reciprocating body.

9. The attachment according to any one of claims 1 to 5, wherein a plurality of the treatment bodies are arranged at intervals in the circumferential direction around the center line of the reciprocating body along the direction of the reciprocating motion of the reciprocating body.

10. The attachment according to claim 9, wherein the rotational axes of the multiple treatment bodies are inclined such that the tip end of each treatment body approaches the center line.

11. An attachment according to any one of claims 1 to 5, A massage device comprising a massage machine having a connected portion to which the aforementioned attachment is detachably connected, and a reciprocating body that moves linearly back and forth to perform a tapping massage on the part of the user to be treated.

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