WO2017149938A1 - Massage mechanism, and chair-type massage machine provided with said massage mechanism - Google Patents

Abstract

Provided is a chair-type massage machine which, while being compact and having a simple configuration, is capable of enabling the protrusion amount of treatment elements to be reliably adjusted. This massage mechanism (4) is provided with: massage members (7) provided with treatment elements; a rotational drive shaft (22) for transmitting rotational drive force to the massage members (7); a first drive unit for generating a rubbing massage motion; a second drive unit for generating a tapping massage motion; link members (42) which couple the second drive unit and base ends of the massage members (7); and a protrusion amount adjustment mechanism (47) which rotates the base ends of the massage members (7) around the rotational drive shaft (22) to change the protrusion amount of the treatment elements in the front-rear direction. The protrusion amount adjustment mechanism (47) enables the protrusion amount of the treatment elements in the front-rear direction to be adjusted by transmitting the rotational drive force of the rotational drive shaft (22) generated by the first drive unit, to move the second drive unit in the vertical direction, and rotate the base-end sides of the massage members (7) around the rotational drive shaft (22).

Description

Massage mechanism and chair type massage machine equipped with this massage mechanism

The present invention relates to a massage mechanism and a chair type massage machine provided with this massage mechanism.

2. Description of the Related Art Conventionally, a massage mechanism generates at least one massage operation of itching, hitting, finger pressure, and vibration, and imparting the massage operation to a user's treatment unit.
There exists a thing shown in patent document 1 as such a massage mechanism (back massage apparatus).

Japanese Patent Laid-Open No. 2007-14466

By the way, in the conventional massage mechanism disclosed in Patent Document 1, the elevating motor 63 that moves the mechanism main body up and down, the mashing motor 26 that generates the mashing operation, the tapping motor 34 that performs the tapping operation, and the tip There are four motors, that is, an exit / retreat motor that retracts and retracts an arm including the treatment element in the front-rear direction.
That is, in the massage mechanism of Patent Document 1, each of the four motors performs each operation (elevating, scuffing, tapping, and withdrawal). Therefore, this massage mechanism is provided with a plurality of transmission means such as gears and reduction gears to transmit the driving force of each of the four motors to each member such as an arm, and has a very complicated configuration (FIG. 3, 5 and 6), and a large mechanism.

In addition, when such a large massage mechanism is adopted in the chair type massage machine, the backrest part becomes heavier by the weight of the massage mechanism with respect to the seat part, so the chair type massage machine becomes heavy and large. There is a fear.
Therefore, the present invention has been made in view of the above circumstances, and it is possible to reliably change the protrusion amount of the treatment element while making it simple and compact, and as a result, any user can It is an object to provide a chair type massage machine that can give a variety of tired feeling and massage feeling to a part (shoulder, waist, back, etc.).

In order to achieve the above object, the present invention takes the following technical means.
The massage mechanism of the present invention is provided with a treatment element on the distal end side, and a pair of massage members provided on the base on the left and right sides, and a pair of massage members provided on the base so as to face in the left-right direction. A rotation drive shaft for transmitting a rotation drive force; a drive unit for rotating the rotation drive shaft to drive the pair of massage members to generate a massage operation; and a proximal end side of the pair of massage members around the rotation drive shaft A protrusion amount variable mechanism that changes the protrusion amount in the front-rear direction of the treatment element by rotating the treatment element, and the protrusion amount variable mechanism transmits the rotational driving force of the rotational drive shaft by the drive unit, By having the proximal end side of the massage member rotated about the rotational drive shaft, it has a connecting member that makes the amount of protrusion in the front-rear direction of the treatment element variable.

Preferably, the proximal end side of the massage member is provided with a restricting portion for preventing accompanying rotation with the rotation shaft, and the connecting member moves the restricting portion to thereby move the proximal end side of the massage member. It is good to set it as the structure rotated around a rotation drive shaft.
Another massage mechanism of the present invention includes a massage member provided with a treatment element on the distal end side and provided as a pair on the base on the left and right, and a pair of massage provided on the base so as to face in the left-right direction. A rotation drive shaft for transmitting a rotation drive force to the member; a first drive unit for rotating the rotation drive shaft to drive the pair of massage members to generate a massaging massage operation; and a vertical movement on the base A second drive unit that is movable and drives the pair of massage members to generate a tapping massage operation; a link member that connects the second drive unit and the base ends of the pair of massage members; A protrusion amount variable mechanism that changes the protrusion amount in the front-rear direction of the treatment element by rotating the proximal end sides of the pair of massage members around a rotation drive shaft, and the protrusion amount variable mechanism includes: First By transmitting the rotational driving force of the rotational drive shaft by the drive unit, moving the second drive unit in the vertical direction, and rotating the proximal end side of the massage member around the rotational drive shaft, the longitudinal direction of the treatment element It has the connection member which makes variable the protrusion amount.

Preferably, the protrusion amount varying mechanism is between the base ends of the pair of massage members, fitted into the outer peripheral surface of the rotary drive shaft, and between the base ends and in the axial direction of the rotary drive shaft And a second drive unit having one end pivotally supported in the front-rear direction so as to be rotatable with respect to the moving member, and the other end disposed above the moving member. A connecting member pivotably supported in the front-rear direction, and when the rotary drive shaft rotates, the moving member moves between the proximal ends of the massage members along the axial center direction of the rotary drive shaft. It is good to set it as the structure which moves the said 2nd drive part to an up-down direction by moving the said connection member up-down by moving left-right direction.

Preferably, the protrusion amount variable mechanism has a screw screw on an outer peripheral surface between base ends of a pair of massage members of the rotation drive shaft, and the moving member has a spiral inner shape that meshes with the screw screw. A ring member having teeth formed on an inner peripheral surface, and a support member that is slidably fitted to and supported by the ring member, and when the rotary drive shaft is rotated, the ring member is the screw It is preferable that the second drive unit is moved in the vertical direction by moving the screw on the screw in the horizontal direction and swinging the connecting member in the vertical direction.

Preferably, when the ring member is moving in the left-right direction on the screw screw, the ring member is not slid with respect to the support member, and when the movement of the ring member is completed, the ring member May be configured to slide relative to the support member.
Preferably, the one end and the other end of the connecting member are divided, the one end and the other end are connected by a spring member, and the length of the connecting member is variable. .

A chair type massage machine according to the present invention is provided with a massage mechanism, a seat part that can be placed on the floor and on which a user's buttocks can be seated, and a rear part of the seat part. The back portion is provided so as to be able to support the back portion, and the back portion has the built-in massage mechanism.

According to the present invention, the amount of protrusion of the treatment element can be surely made variable while being simple and compact, and as a result, it can be applied to every part of the user (shoulder, waist, back, etc.). Thus, it is possible to provide a variety of timeless massage and massage.

It is a front perspective view which shows 1st Embodiment of the massage mechanism of this invention, and is a figure which shows the state which the treatment element protruded ahead. It is a front perspective view which shows 1st Embodiment of the massage mechanism of this invention, and is a figure which shows the state which the treatment element retracted. It is a back perspective view showing a 1st embodiment of a massage mechanism of the present invention, and is a figure showing the state where a treatment element protrudes ahead. It is the figure which expanded the 1st conversion part and the 2nd conversion part partially (In addition, it abbreviate | omitted and drawn). It is a front view which shows 1st Embodiment of the massage mechanism of this invention, and is a figure which shows the state which the treatment element protruded ahead (corresponding to FIG. 1). It is a front view which shows 1st Embodiment of the massage mechanism of this invention, and is a figure which shows the state in the back movement operation | movement of a treatment element. It is a front view which shows 1st Embodiment of the massage mechanism of this invention, and is a figure which shows the state which the treatment element retracted (corresponding to FIG. 2). It is a right side sectional view showing a first embodiment of the massage mechanism of the present invention, (a) is a diagram showing a state in which the treatment element protrudes forward (AA cross section of FIG. 5), (b) is It is a figure (BB cross section of FIG. 7) which shows the state which the treatment element retracted. It is a front perspective view which shows 2nd Embodiment of the massage mechanism of this invention, and is a figure which shows the state which the treatment element protruded ahead. It is a front perspective view which shows 2nd Embodiment of the massage mechanism of this invention, and is a figure which shows the state which the treatment element retracted. It is a front perspective view which shows 2nd Embodiment of the massage mechanism of this invention, and is a figure which shows the state which the treatment element further retracted. It is a front view which shows 2nd Embodiment of the massage mechanism of this invention, and is a figure which shows the state which the treatment element protruded ahead (corresponding to FIG. 9). It is a front view which shows 2nd Embodiment of the massage mechanism of this invention, and is a figure which shows the state in the back movement operation | movement of a treatment element. It is a front view which shows 2nd Embodiment of the massage mechanism of this invention, and is a figure which shows the state which the treatment element retracted (corresponding to FIG. 10). It is a front view which shows 2nd Embodiment of the massage mechanism of this invention, and is a figure which shows the state which the treatment element further retracted (corresponding to FIG. 11). It is a right side sectional view showing the first embodiment of the massage mechanism of the present invention, (a) is a diagram showing a state in which the treatment element protrudes forward (AA cross section of FIG. 12), (b) is It is a figure (BB cross section of FIG. 14) which shows the state which the treatment element retracted, (c) is a figure (CC cross section of FIG. 15) which shows the state which the treatment element further retracted. It is a perspective view which shows the whole chair type massage machine of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 to FIG. 17 show an embodiment of a massage mechanism 4 according to the present invention and a chair type massage machine 1 provided with the massage mechanism 4.
First, for convenience of explanation, the left side in FIGS. 1 and 4 is the “right side” when describing the massage mechanism 4 and the chair type massage machine 1 of the present embodiment, and the right side is the massage mechanism 4 and the chair type massage machine. 1 is assumed to be “left side”.

Further, the paper penetrating direction in the right oblique direction in FIG. 1 or the front side in the paper penetrating direction in FIG. 4 is the “front side” in the case of explaining the massage mechanism 4 and the chair type massage machine 1, and the back side in the paper penetrating direction. Is the “rear side”.
Moreover, the upper side in FIGS. 1 and 4 is the “upper side” in the case of explaining the massage mechanism 4 and the chair type massage machine 1 of the present embodiment, and the lower side is explained in the case of the massage mechanism 4 and the chair type massage machine 1. "Lower".

These coincide with the “front-rear direction”, “left-right direction”, and “up-down direction” viewed from the user seated on the seat 2 of the chair type massage machine 1.
First, the outline | summary of the chair type massage machine 1 provided with the massage mechanism 4 of this invention is demonstrated.
As shown in FIG. 17, the chair-type massage machine 1 includes a seat 2 that is arranged at a predetermined height on a floor surface such as a living floor and on which a user's buttocks can be seated, and a rear portion of the seat 2. The backrest 3 is provided so as to be able to support the back of the user, and is treated from the shoulder of the user seated on the seat 2 to the waist, that is, with respect to the back. And a massage mechanism 4 to be treated.

In addition, the massage mechanism 4 of this invention can be mounted also in the seat type massage machine by which the seat part 2 is arrange | positioned directly on a floor surface.
As shown in FIG. 17, the seat 2 is a member that is arranged at a predetermined height on the floor surface, and on which the user's buttocks can be seated, is formed in a substantially rectangular shape in plan view. . A frame member capable of supporting the user's buttocks from below is provided inside the seat portion 2. A cushion member is provided on the upper surface (seat surface) side of the seat portion 2. The seat portion 2 is placed on the floor surface so that the seat surface is substantially horizontal, and can provide a good sitting comfort to the user.

The backrest part 3 has a lateral direction (width) slightly wider than the shoulder width of the user so that the user's back part can be covered over the entire surface, and the length in the vertical direction is the length of the seat part 2 in the front-rear direction. It is a long plate-shaped (plate-shaped) member.
The backrest part 3 is a member that is disposed at the rear part of the seat part 2 and supports the back part (waist part to shoulder part) of the user, and is a casing (casing) that is hollow inside. Inside the backrest part 3, the massage mechanism 4 provided with the vertical movement mechanism 44 which moves the base 5 freely to an up-down direction is arrange | positioned.

A cloth-like front cover body is provided on the front side of the backrest 3 and in the region where the massage mechanism 4 moves in the vertical direction. With this cloth-shaped front cover body, the massage mechanism 4 (treatment element) is prevented from directly hitting the user's back part (treatment part). Further, the backrest part 3 can be reclined with respect to the seat part 2.
In addition, the chair shape of the chair type massage machine 1 described above is an example, and is not limited to this shape and configuration.
[First Embodiment]
1st Embodiment of the massage mechanism 4 of this invention is described, referring a figure.

As shown in FIG. 1 to FIG. 8, the massage mechanism 4 of the present embodiment is a mechanism having two or more massage operations, and a pair is provided with a predetermined interval in the left-right direction (width direction). A massage member, a massaging massage mechanism 21 (more specifically, a massaging massaging mechanism) that performs a massaging massage operation on a user's treatment unit (back), and a tapping massage mechanism 34 that performs a massaging massage operation are provided. . Furthermore, the massage mechanism 4 of the present embodiment includes a vertical movement mechanism 44 that guides in the vertical direction inside the backrest 3.

Furthermore, the massage mechanism 4 of this embodiment changes the protrusion amount of the 1st treatment element 10 provided in the front-end | tip of the 1st massage member 7, and moves the said 1st treatment element 10 back and forth. It has a projecting amount varying mechanism 47 that makes it possible.
The gripping massage mechanism 21, the hitting massage mechanism 34, the up and down movement mechanism 44, and the protrusion amount varying mechanism 47 are integrally accommodated in the base 5.

The base 5 is disposed inside the backrest 3 and on the front wall side of the backrest 3. The base 5 includes a gripping and driving unit 23 (rotation drive shaft 22, first motor and first gear box 26, etc.) and a tapping drive unit 36 (rotation drive shaft 35, second motor and second), which will be described later. Gear box 39 and the like, and vertical movement mechanism 44 (elevating drive unit 45 and the like).
The base 5 is a strong housing that can withstand each operation, and the inside thereof is partitioned by a partition wall in order to accommodate each of the above mechanisms. Each mechanism is accommodated in a space partitioned by the partition walls.

In addition, although the massage mechanism 4 of this embodiment illustrates what is provided with two massage operation | movement of the grasping massage mechanism 21 and the hitting massage mechanism 34, it massages with respect to a user's back part (treatment part). Among the operations such as hitting, finger pressure, and vibration, at least two or more massage operations may be provided.
The massage body 6 performs a grabbing massage operation and a hitting massage operation.

As shown in FIGS. 1 and 2, the massage body 6 is provided on the base 5 and provided on the base 5 with the first massage member 7 provided with the first treatment element 10 at the tip and the first massage member 6. The first massage member 7 is arranged on the proximal end side, and the second massage member 14 provided with the second treatment element 17 at the distal end is combined. The base end of each massage member is attached to a rotation drive shaft 22 of a gripping massage mechanism 21 described later, and is disposed so as to overlap in the left-right direction.

The first massage member 7 is provided on the base 5 as a pair on the left and right. The 1st massage member 7 gives massage operation from the upper part to a user's treatment part by the 1st treatment element 10 with which the tip is equipped.
As shown in FIGS. 8A and 8B, the first massage member 7 is a long arm-shaped member, and is disposed so as to protrude forward from the rotary drive shaft 22 of the grasping massage mechanism 21. Has been.

At the base end of the first massage member 7, there is provided a first annular fitting portion 8 that is fitted via a bearing 30 to an inclined boss portion 28 of the first conversion portion 27 described later. A support portion 9 (arm portion) extends from the first annular fitting portion 8 toward the front side. The first annular fitting portion 8 is a thin ring-shaped member, and the inner peripheral diameter thereof is substantially the same as the outer peripheral diameter of the bearing 30 fitted on the cam surface 29 of the inclined boss portion 28.

The first treatment element 10 is on the front side of the rotational axis of the first annular fitting portion 8 (axial center of the rotational drive shaft 22), and further protrudes from the front side of the backrest portion 3. Is attached. The first treatment element 10 is formed in various shapes such as a spherical shape, and is formed of resin, hard rubber, or the like.
Moreover, the 1st control piece 12 which comprises the 1st control part 11 is formed in the base end of the 1st massage member 7, and the position which substantially faces an arm part. A first restriction pin 13 formed at the tip of a link member 42 constituting the first restriction portion 11 is slidably fitted into the first restriction piece 12.

That is, the first massaging member 7 is arranged with the arm portion facing slightly forward and upward so that the first treatment element 10 at the front end faces the front and is positioned in front of the rotational drive shaft 22.
The second massage member 14 is provided on the base 5 as a pair on the left and right. The pair of second massage members 14 are disposed inside the pair of first massage members 7 so as to overlap in the left-right direction. The 2nd massage member 14 provides massage operation so that it may approach and separate from the 1st treatment element 10 with the 2nd treatment element 17 with which the tip is equipped.

The second massage member 14 is a short member with respect to the first massage member 7, and the proximal end is gripped and attached to the rotation drive shaft 22 of the massage mechanism 21. The second massage member 14 is arranged so as to be located below the arm portion of the first massage member 7.
A second annular fitting portion 15 that fits into an eccentric boss portion 32 of the second conversion portion 31 described later is provided at the proximal end of the second massage member 14. A short support portion 16 is provided from the second annular fitting portion 15 toward the front side. The second annular fitting portion 15 is a ring-shaped member, and the inner peripheral diameter thereof is substantially the same as the outer peripheral diameter of the cam surface 33 of the eccentric boss portion 32.

The second treatment element 17 is a short support part 16 so as to protrude from the front side of the backrest part 3 on the front side of the rotational axis of the first annular fitting part 8 (axial center of the rotation drive shaft 22). It is attached to the tip.
In addition, a second restricting piece 19 constituting a second restricting portion 18 described later is formed at the proximal end of the second massage member 14. The second restricting piece 19 is pivotally supported by the connecting piece 20 that constitutes the second restricting portion 18.

That is, the second massage member 14 is arranged such that the second treatment element 17 facing forward is positioned behind and below the first treatment element 10. Since the 2nd treatment element 17 and the 1st treatment element 10 are arranged in the position which pinches | interposes mutually, it becomes possible to pinch so that a user's treatment part (shoulder part) may be hooked.
As shown in FIGS. 1 to 8, the grasping massage mechanism 21 of the present embodiment is arranged on the base 5 so as to face in the left-right direction, and is attached to the pair of first massage member 7 and second massage member 14. A rotation drive shaft 22 for transmitting a rotation drive force, and a gripping drive unit that is housed on the left side of the base 5 and drives the pair of first massage member 7 and second massage member 14 by rotating the rotation drive shaft 22. 23. The gripping and driving unit 23 includes a gripping and driving motor 24 (first driving motor) and a first gear box 26.

The rotary drive shaft 22 is located on the lower side of the massage mechanism 4 (base 5) in the vertical direction and on the front side of the output shaft 25 (motor rotary shaft) of the gripping drive motor 24 so as to be bridged between the right side and the left side. Has been deployed. The rotation drive shaft 22 is disposed so as to penetrate the proximal end of the first massage member 7 and the proximal end of the second massage member 14 in the left-right direction.
The gripping and driving motor 24 is accommodated on the left side of the base 5, and the output shaft 25 is arranged facing downward. The gripping drive motor 24 and the rotary drive shaft 22 are connected via a first gear box 26.

With the above-described configuration, the rotation drive shaft 22 is attached to the rotation drive shaft 22 while being inclined, and the inclined boss portion 28 having the cam surface 29 formed on the outer peripheral surface, and the first massage member 7. The first massaging member 7 is provided with the rotation of the first annular fitting portion 8 provided at the base end of the inclined boss portion 28 and fitted into the cam surface 29 of the inclined boss portion 28 via the bearing 30 and the rotation drive shaft 22. A first restricting portion 11 that restricts rotation is provided. When the rotary drive shaft 22 is rotated by the first drive motor 24 of the gripping drive unit 23, the inclined boss portion 28 is rotated, and the first annular fitting portion 8 that is fitted to the inclined boss portion 28 and the first restriction. By the part 11, the 1st massage member 7 performs a kneading operation | movement.

At the same time, the eccentric boss portion 32 also rotates, and the eccentric boss portion 32 rotates up and down of the second massage member 14 by the second annular fitting portion 15 slidably fitted to the eccentric boss portion 32. Convert to oscillating motion in direction.
As described above, the gripping massage mechanism 21 rotates the rotary drive shaft 22 by the rotational driving force of the output shaft 25 of the gripping drive motor 24, and the first treatment element 10 provided in the first massage member 7 Then, the second treatment element 17 provided in the second massage member 14 is swung so as to approach and separate from each other, and a gripping operation is exhibited. This mechanism is substantially the same as the configuration described in detail in Japanese Patent Application No. 2014-265078 already filed by the applicant of the present application.

Further, the tapping massage mechanism 34 of the present embodiment is arranged on the base 5 in the backrest portion 3 so as to face in the left-right direction, and transmits a rotational driving force to the first massage member 7 and a base. It is housed in the center of the table 5 and has a tapping drive unit 36 that tapping the first massage member 7 and a link member 42 that transmits the power of the tapping drive unit 36 to the first massage member 7. . The tapping drive unit 36 has a tapping drive motor 37 (second drive motor) and a second gear box 39.

The rotation drive shaft 35 is disposed on the upper side in the vertical direction of the massage mechanism 4 (base 5) and on the front side of the output shaft 38 (motor rotation shaft) of the tapping drive motor 37 so as to span between the right side and the left side. Has been. The rotation drive shaft 35 is disposed so as to penetrate the base ends of the pair of link members 42 in the left-right direction.
The tapping drive motor 37 is accommodated in the center of the base 5 and is provided with the output shaft 38 facing upward. The tapping drive motor 37 and the rotary drive shaft 35 are connected via a second gear box 39.

The second gear box 39 is disposed in front of the tapping drive motor 37 and between the base ends of the pair of link members 42, and the second drive gear 35 penetrates the second gear box 39.
The pair of link members 42 are rod-shaped plate pieces that are arranged in a suspended manner in a substantially hanging direction in a side view. The link member 42 has a distal end slidably connected via the first restricting portion 11, and a proximal end pivotally supported on the rotation drive shaft 35.

Specifically, a pair of eccentric cam members 40 that are formed in a flange shape and have a substantially cylindrical shape and an endless track (cam surface) are attached to both ends of the rotary drive shaft 35. On the other hand, as shown in FIGS. 4 and 8, the link member 42 converts the rotation of the tapping drive unit 36 into a tapping motion (up and down motion) to form the first massage member 7. It is a rod-shaped plate piece that is to be transmitted and is suspended in a substantially hanging direction in a side view.

A third annular fitting portion 43 is provided at the base end of the link member 42. The third annular fitting portion 43 is a ring-shaped member, and externally fits an eccentric cam member 40 attached to an end portion of the rotation drive shaft 35 (for hitting massage operation) via a bearing 41. On the other hand, the first restriction pin 13 is formed at the distal end of the link member 42, and slides on the first restriction piece 12 formed at the base end (first annular fitting portion 8) of the first massage member 7. It is designed to fit freely.

When the rotary drive shaft 35 rotates under such a mechanism, the eccentric cam member 40 causes the link member 42 to reciprocate up and down, and the movement (crank movement) of the link member 42 is based on the proximal end of the first massage member 7. As a result, a tapping massage that moves the first treatment element 10 in small increments is developed. This mechanism is substantially the same principle as the technique disclosed in Japanese Patent Application Laid-Open No. 2004-41689 already filed by the present applicant.

Further, the vertical movement mechanism 44 is accommodated on the right side of the base 5 and guides the massage mechanism 4 along the vertical direction, and a lift drive unit 45 that moves the massage mechanism 4 (base 5) in the vertical direction. Rail member 46.
Incidentally, the first treatment element 10 provided in each of the pair of first massage members 7 can change the protrusion amount in the front-rear direction of the treatment element by the protrusion amount variable mechanism 47.

The protrusion amount varying mechanism 47 includes a link member 42 that connects the tapping drive unit 36 (second drive motor and the like) and the base ends of the pair of first massage members 7, and the base ends of the pair of first massage members 7. It is a mechanism that changes the amount of protrusion of the first treatment element 10 in the front-rear direction by rotating the side around the rotation drive shaft 22.
That is, the protrusion amount varying mechanism 47 transmits the rotational driving force of the rotational driving shaft 22 by the grasping and driving motor 24 (first driving motor), and moves the tapping drive unit 36 on the base 5 in the vertical direction. In addition, by rotating the proximal end side of the first massage member 7 around the rotation drive shaft 22, the protruding amount (withdrawal amount) of the first treatment element 10 in the front-rear direction is made variable.

As shown in FIGS. 1 to 8, the protrusion amount varying mechanism 47 is between the proximal ends of the pair of first massage members 7 (in the middle of the axial direction of the rotary drive shaft 22), and the outer periphery of the rotary drive shaft 22. A moving member 48 that fits into the surface and moves along the axial direction of the rotational drive shaft 22 between the base ends thereof, and one end pivotally supported in the front-rear direction so as to be rotatable with respect to the moving member 48. In addition, the other end has a connecting member 49 pivotally supported in the front-rear direction so as to be rotatable by the hitting drive unit 36 disposed above the moving member 48.

When the rotation drive shaft 22 rotates, the protruding amount variable mechanism 47 moves the moving member 48 in the left-right direction between the proximal ends of the first massage member 7 along the axial direction of the rotation drive shaft 22. The connecting member 49 is moved up and down to move the hit driving unit 36 to which the connecting member 49 is connected in the up and down direction.
The protrusion amount varying mechanism 47 has a screw screw 50 that guides the moving member 48 in the left-right direction. The screw screw 50 is formed between the proximal ends of the pair of first massage member 7 and the second massage member 14 (in the middle in the axial direction) and on the outer peripheral surface of the rotary drive shaft 22. The screw screw 50 is an external tooth formed so as to be spirally wound on the outer peripheral surface of the rotary drive shaft 22. The dimensions and shape such as the pitch of the screw 50 are arbitrarily set, and are not particularly limited.

The moving member 48 includes a ring member 51 in which a spiral inner tooth that meshes with the screw screw 50 is formed on the inner peripheral surface, and a support that is slidably fitted on the outer peripheral surface of the ring member 51 and supported. And a member 52.
The ring member 51 slides around the screw screw 50 and moves in the left-right direction on the screw screw 50 (rotary drive shaft 22). That is, the ring member 51 moves in the left-right direction while rotating on the screw screw 50.

The ring member 51 is not slid with respect to the support member 52 when the ring member 51 is moving in the left-right direction on the screw screw 50. Further, the ring member 51 is configured to slide with respect to the support member 52 when the movement of the ring member 51 is completed.
The support member 52 is formed with a through hole 53 whose axis is directed in the left-right direction, and the inner peripheral diameter thereof is substantially the same as the outer peripheral diameter of the ring member 51. That is, the support member 52 is configured to be externally fitted to the rotary drive shaft 22 via the ring member 51 that meshes with the screw screw 50.

On the upper surface of the support member 52, a pivot portion 54 that pivotally supports the connecting member 49 is provided. The pivot portion 54 is a hole (concave portion) whose axis is directed in the front-rear direction.
The connecting member 49 is a long rod member, and one end is formed in a bent shape (L-shape) in a side view protruding forward. By making one end bent, interference with the rotary drive shaft 22 arranged below the connecting member 49 is avoided. Note that the shape of the connecting member 49 such as a bent shape is an example, and is arbitrarily designed, so the shape of the connecting member 49 is not particularly limited.

A hole 55 whose axial center faces in the front-rear direction is formed at the tip of one end. The axial center of the hole 55 coincides with the axial center of the pivot portion 54 of the support member 52.
That is, one end of the connecting member 49 is pivotable with respect to the support member 52 (moving member 48) through the hole 55 having the same axial center and the pivot pin 56 inserted into the pivot portion 54. It is supported by.

On the other hand, the other end of the connecting member 49 is formed with a hole 57 whose axis is directed in the front-rear direction. A pivot pin 56 whose axial center faces in the front-rear direction is inserted into the hole 57. The other end of the connecting member 49 is pivotally supported by the front wall of the second gear box 39 via the pivot pin 56 inserted in the hole 57 so as to be rotatable in the front-rear direction with respect to the tapping drive unit 36.
That is, the connecting member 49 is provided between the screw screw 50 (lower part in the axial direction of the rotational drive shaft 22) disposed below and the tapping drive part 36 (second gear box 39) disposed above. And move up and down between them.

Now, the base 5 is provided with a pair of left and right guide rails 58 for guiding the hitting drive unit 36 in the vertical direction. The pair of guide rails 58 is provided on the front side of the second gear box 39 and above the screw screw 50 (an intermediate portion in the axial direction of the rotary drive shaft 22). The guide rail 58 is provided with a predetermined interval on the left and right with its axis oriented in the vertical direction.
In other words, the pair of guide rails 58 are provided so as to penetrate the front side of the second gear box 39 in the vertical direction.
[Mode of operation]
Next, an operation mode of the protrusion amount varying mechanism 47 provided in the massage mechanism 4 of the present invention will be described with reference to the drawings.

As shown in FIGS. 1, 5, and 8A, the moving member 48 moves to the left end of the screw screw 50 while rotating on the screw screw 50 (rotation drive shaft 22) on which the ring member 51 rotates. It is in a state. At this time, the connecting member 49 is in an upright state in which one end moves to the left end with the leftward movement of the ring member 51 and the other end moves upward.
Here, the ring member 51 that has finished moving slides relative to the support member 52.

For example, when the ring member 51 comes into contact with the annular stopper 59 provided at the left end of the screw screw 50 and the movement in the left direction is finished, the ring member 51 slides with respect to the support member 52.
With this configuration, the pair of first massaging members 7 can be grasped and massaged and struck with massaging without stopping the rotation of the rotation drive shaft 22, and the load in the left-right direction of the moving ring member 51 can be achieved. It is possible to prevent damage to the protruding amount varying mechanism 47 due to the above.

At this time, the hitting drive unit 36 is in a state of being moved to the upper side of the base 5 by the operation of the protrusion amount varying mechanism 47 (the upward movement of the connecting member 49). In addition, the link member 42 is also moved to the upper side of the base 5 in accordance with the upward movement of the tapping drive unit 36. By this operation, the first restricting unit 11 is pulled upward, so that the pair of first members The first massage member 7 rotates forward around the axis of the rotation drive shaft 22, and the first treatment element 10 projects forward from the base 5.

By the way, when the rotary drive shaft 22 is switched in the opposite direction to the previous rotation and rotated (for example, the motor constituting the gripping drive unit 23 is rotated reversely), the ring member 51 constituting the moving member 48 is screwed. The screw 50 is slid in the opposite direction to the rotation at the time of the movement in the left direction, and moved on the screw screw 50 in the right direction.
When the ring member 51 moves rightward on the screw screw 50, the connecting member 49 moves downward because the one end also moves rightward as the ring member 51 moves rightward. Further, the hitting drive unit 36 is guided by the guide rail 58 from the upper side of the base 5 by the downward movement of the connecting member 49 and moves downward. Further, the link member 42 moves below the base 5 as the hit driving unit 36 moves downward (see FIG. 6).

As shown in FIGS. 2, 7, and 8 (b), the ring member 51 (moving member 48) rotates to the right on the rotating screw screw 50 (rotation drive shaft 22), while the screw screw 50. It has been moved to the right end. At this time, the connecting member 49 is moved downward because the one end also moves to the right end as the ring member 51 moves in the right direction. That is, the connecting member 49 is in a laid state. Here, when the ring member 51 arrives at the right end of the screw screw 50, the rightward movement is finished, and the ring member 51 slides with respect to the support member 52.

At this time, the hitting drive unit 36 is in a state of moving to the center of the base 5 due to the downward movement of the connecting member 49. At this time, the link member 42 is moved below the base 5 as the tapping drive unit 36 moves downward.
By this operation, the first restricting portion 11 is pushed downward, so that the pair of first massage members 7 rotate rearward around the axis of the rotation drive shaft 22 and the first treatment element 10 moves backward toward the base 5 side. To do.

In this way, by switching the rotation of the rotary drive shaft 22, the operation of the protrusion amount varying mechanism 47 is switched, and the ring member 51 is reciprocated between the screw screws 50, thereby changing the protrusion amount of the first treatment element 10. be able to.
As described above, in the protrusion amount varying mechanism 47 of the present embodiment, when the rotary drive shaft 22 rotates, the ring member 51 (moving member 48) moves in the left-right direction on the screw screw 50 (the middle portion in the axial direction of the rotary drive shaft 22). In this configuration, the connecting member 49 is swung in the vertical direction, and the tapping drive unit 36 is moved in the vertical direction along the guide rail 58 so that the protruding amount of the first treatment element 10 is variable. .

In other words, the massage mechanism 4 of the present invention has a single grasping and driving unit 23 (first driving unit) and two operations (the grasping and massaging operation and the protrusion amount varying mechanism 47). It is characterized in that the operation of adjusting the protrusion amount can be performed.
By setting the protrusion amount variable mechanism 47 to the above-described configuration, the protrusion amount of the first treatment element 10 can be reliably changed while the massage mechanism 4 has a simple configuration and is compact. For this reason, it is possible to give various and timeless itchiness and massage feeling to every part of the user (shoulder, waist, back, etc.).
[Second Embodiment]
Next, 2nd Embodiment of the massage mechanism 4 of this invention is described, referring a figure.

In the present embodiment, the configuration of the connecting member 49 provided in the protrusion amount varying mechanism 47 is different from that in the first embodiment. The other configuration of the protruding amount varying mechanism 47 is the same as that of the first embodiment. Therefore, the detailed description of the other structure of the protrusion amount varying mechanism 47 is omitted. Other configurations of the massage mechanism 4 (excluding the protrusion amount varying mechanism 47) will be described later.

As shown in FIGS. 9 to 16, the connecting member 49 constituting the protrusion amount varying mechanism 47 has one end and the other end divided, and the one end and the other end are connected by a spring member 60. Therefore, the length of the connecting member 49 is variable.
The connecting member 49 is a long member in which one end and the other end are divided. One end is formed in a bent shape (L-shape) in a side view protruding forward in order to avoid interference with the rotary drive shaft 22 arranged below the connecting member 49.

In addition, a hole 55 whose axial center faces in the front-rear direction is formed at the tip of one end. The axial center of the hole 55 coincides with the axial center of the pivot portion 54 of the support member 52. That is, one end of the connecting member 49 is pivotable with respect to the support member 52 (moving member 48) through the hole 55 having the same axial center and the pivot pin 56 inserted into the pivot portion 54. It is supported by.
On the other hand, the base end opposite to the tip of one end is a flat surface facing in the front-rear direction, and the spring member 60 is placed on the flat surface. The spring member 60 is composed of a spring 61 having a predetermined strength and a rod 62 that is inserted inside the spring 61 and can be expanded and contracted.

The other divided end is attached to the upper part of the spring member 60. In the present embodiment, the other end is a cylindrical member 63 that covers the top of the spring member 60.
A hole 57 whose axis is directed in the front-rear direction is formed at the tip of the other end. A pivot pin 56 whose axial center faces in the front-rear direction is inserted into the hole 57. The other end of the connecting member 49 is pivotally supported on the front wall of the second gear box 39 in the front-rear direction so as to be rotatable with respect to the tapping drive unit 36 via a pivot pin 56 inserted into the hole 57. .

That is, the connecting member 49 of the present embodiment is a shock absorber in which the spring member 60 moves in the vertical direction between the screw screw 50 disposed below and the tapping drive unit 36 disposed above. It has the structure of.
The connection member 49 has the spring member 60 and the connection member 49 can be expanded and contracted in the longitudinal direction. The first treatment element 10 can freely move in the front-rear direction by the amount corresponding to the expansion and contraction of the connection member 49. It means you can move. For this reason, it is permitted that the 1st treatment element 10 moves so that the unevenness | corrugation of a user's back part may be followed, and it is possible to perform an effective massage while the 1st treatment element 10 follows a user's back part. Become.
[Mode of operation]
Next, the operation mode of the protrusion amount varying mechanism 47 of this embodiment will be described with reference to the drawings.

As shown in FIGS. 9, 12, and 16A, the moving member 48 moves to the left end of the screw screw 50 while rotating on the screw screw 50 (rotation drive shaft 22) on which the ring member 51 rotates. It is in a state.
At this time, the connecting member 49 is in a state where the spring member 60 is extended. The connecting member 49 is in an upright state in which one end moves to the left end as the ring member 51 moves leftward and the other end moves upward. When the ring member 51 comes into contact with the left end stopper 59 of the screw screw 50 and the movement in the left direction is completed, the ring member 51 comes to slide with respect to the support member 52.

At this time, the hitting drive unit 36 is in a state of being moved to the upper side of the base 5 by the upward movement of the connecting member 49. Further, the link member 42 is also moved to the upper side of the base 5 with the upward movement of the tapping drive unit 36.
By this operation, the first restricting portion 11 is pulled upward, so that the pair of first massage members 7 rotate forward around the axis of the rotation drive shaft 22, and the first treatment element 10 moves forward from the base 5. Protrusively.

By the way, when the rotary drive shaft 22 is switched in the opposite direction to the previous rotation and rotated, the ring member 51 moves rightward on the screw screw 50. When the ring member 51 moves rightward on the screw screw 50, the connecting member 49 moves downward because the one end also moves rightward as the ring member 51 moves rightward. Further, the tapping drive unit 36 and the link member 42 also move downward (see FIG. 13).

As shown in FIGS. 10, 14, and 16 (b), the ring member 51 has moved to the right end of the screw screw 50 while rotating right on the rotating screw screw 50 (rotation drive shaft 22). State. At this time, the connecting member 49 is in a state in which the spring member 60 is slightly contracted and laid down because the hitting drive unit 36 moves downward and is positioned at the center of the base 5. Here, when the ring member 51 reaches the right end of the screw screw 50 and the rightward movement is completed, the ring member 51 slides with respect to the support member 52.

By this operation, the first restricting portion 11 is pushed downward, so that the pair of first massage members 7 rotate rearward around the axis of the rotation drive shaft 22 and the first treatment element 10 moves backward toward the base 5 side. To do.
In this way, by switching the rotation of the rotary drive shaft 22, the operation of the protrusion amount varying mechanism 47 is switched, and the ring member 51 is reciprocated between the screw screws 50, thereby changing the protrusion amount of the first treatment element 10. be able to.

Furthermore, in this embodiment, it is possible to further retract the first treatment element 10 toward the base 5 side.
As shown in FIGS. 11, 15, and 16 (c), the ring member 51 is in a state in which the movement in the right direction is finished and is sliding with respect to the support member 52.
At this time, when a load such as a force applied when the user leans against the backrest 3 is applied to the pair of first massage members 7, the spring member 60 provided on the connecting member 49 absorbs the load and further By contracting, the first massage member 7 is further rotated rearward around the axis of the rotation drive shaft 22. Therefore, the first treatment element 10 also moves backward toward the base 5 side.

Thus, since the connection member 49 of the present embodiment is configured as a shock absorber having the spring member 60, the load such as a force applied when the user leans against the backrest 3 is absorbed. Therefore, the first treatment element 10 can be further retracted toward the base 5 side.
That is, as shown in FIGS. 16A to 16C, the massage mechanism 4 according to the present embodiment performs the first treatment by the expansion and contraction operation of the spring member 60 provided in the connecting member 49 constituting the protrusion amount varying mechanism 47. The protrusion amount of the child 10 can be varied greatly.

The scope of the present invention is shown not by the above description but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.
In addition, it should be considered that the embodiments disclosed herein are illustrative and non-restrictive in every respect. In particular, in the embodiment disclosed this time, matters that are not explicitly disclosed, for example, operating conditions and operating conditions, various parameters, dimensions, weights, volumes, and the like of a component deviate from a range that a person skilled in the art normally performs. Instead, values that can be easily assumed by those skilled in the art are employed.

In the protrusion amount varying mechanism 47 of the present embodiment, the screw screw 50 is employed as a configuration for guiding the moving member 48 in the left-right direction on the rotation drive shaft 22. Other means (for example, a spline structure or the like) may be used as long as the structure guides.
In the present embodiment, the massage mechanism that alternately or simultaneously rubs and strikes is described as an example. However, the protrusion amount variable mechanism that protrudes the first treatment element in the front-rear direction performs another massage. It may be mounted on the mechanism.

For example, a massage mechanism that only massages is configured to include a protrusion amount variable mechanism that changes the protrusion amount in the front-rear direction of the treatment element by rotating the proximal end side of the pair of massage members around the rotation drive shaft. The protrusion amount variable mechanism transmits the rotational driving force of the rotational drive shaft by the drive unit and rotates the proximal end side of the massage member around the rotational drive shaft, thereby changing the protrusion amount in the front-rear direction of the treatment element. It is good also as a structure which has a connection member. In this case, the proximal end side of the massage member is provided with a restricting portion for preventing a rotation shaft and accompanying rotation, and the connecting member moves the restricting portion described above to rotate the proximal end side of the massage member. It is good to make it rotate around an axis.

DESCRIPTION OF SYMBOLS 1 Chair type massage machine 2 Seat part 3 Backrest part 4 Massage mechanism 5 Base 6 Massage body 7 First massage member 8 First annular fitting part 9 Support part (arm part)
10 first treatment element 11 first restriction part 12 first restriction piece 13 first restriction pin 14 second massage member 15 second annular fitting part 16 support part 17 second treatment element 18 second restriction part 19 second restriction piece 20 connecting piece 21 gripping massage mechanism 22 rotary drive shaft 23 gripping drive unit 24 first drive motor (gripping drive motor)
25 Output shaft 26 1st gear box 27 1st conversion part 28 Inclined boss part 29 Cam surface 30 Bearing 31 2nd conversion part 32 Eccentric boss part 33 Cam surface 34 Tapping massage mechanism 35 Rotation drive shaft 36 Tapping drive part 37 2nd Drive motor (striking drive motor)
38 Output shaft 39 Second gear box 40 Eccentric cam member 41 Bearing 42 Link member 43 Third annular fitting portion 44 Vertical movement mechanism 45 Lifting drive portion 46 Rail member 47 Projection amount varying mechanism 48 Moving member 49 Connecting member 50 Screw screw 51 Ring member 52 Support member 53 Through hole 54 Pivoting portion 55 Hole 56 Pivoting pin 57 Hole 58 Guide rail 59 Stopper 60 Spring member 61 Spring 62 Rod 63 Cylindrical member

Claims (8)

1. A massage member provided with a treatment element on the distal end side and deployed in a pair on the left and right on the base; and
   A rotation drive shaft disposed on the base so as to face in the left-right direction and transmitting a rotation drive force to the pair of massage members;
   A drive unit that rotates the rotation drive shaft to drive the pair of massage members to generate a massage operation;
   A protrusion amount variable mechanism that changes the protrusion amount in the front-rear direction of the treatment element by rotating the proximal end sides of the pair of massage members around a rotation drive shaft;
   The protrusion amount variable mechanism transmits the rotational driving force of the rotational drive shaft by the drive unit, and rotates the proximal end side of the massage member around the rotational drive shaft, thereby making it possible to vary the forward and backward protrusion amount of the treatment element. A massage mechanism characterized by having a connecting member.
2. On the base end side of the massage member, a restricting portion for preventing accompanying rotation with the rotation shaft is provided,
   The massaging mechanism according to claim 1, wherein the connecting member is configured to rotate a proximal end side of the massaging member around a rotation drive shaft by moving a restricting portion.
3. A massage member provided with a treatment element on the distal end side and deployed in a pair on the left and right on the base; and
   A rotation drive shaft disposed on the base so as to face in the left-right direction and transmitting a rotation drive force to the pair of massage members;
   A first drive unit that rotates the rotation drive shaft to drive the pair of massage members to generate a massaging massage operation;
   A second drive unit configured to be movable in the vertical direction on the base, and driving the pair of massage members to generate a massage operation;
   A link member that connects the second drive unit and the base ends of the pair of massage members;
   A protrusion amount variable mechanism that changes the protrusion amount in the front-rear direction of the treatment element by rotating the proximal end sides of the pair of massage members around a rotation drive shaft;
   The protrusion amount variable mechanism transmits the rotational driving force of the rotational driving shaft by the first driving unit, moves the second driving unit in the vertical direction, and moves the proximal end side of the massage member around the rotational driving shaft. A massage mechanism characterized by having a connecting member that makes the amount of protrusion in the front-rear direction of the treatment element variable by rotating the treatment element.
4. The protrusion amount varying mechanism is
   A moving member that fits between the proximal ends of the pair of massage members, fits on the outer peripheral surface of the rotational drive shaft, and moves between the proximal ends and along the axial direction of the rotational drive shaft;
   One end is pivotally supported in the front-rear direction so as to be rotatable with respect to the moving member, and the other end is pivoted in the front-rear direction so as to be freely rotatable with respect to the second drive unit disposed above the moving member. A connecting member to be supported;
   When the rotational drive shaft rotates, the moving member moves up and down between the proximal ends of the massage members along the axial direction of the rotational drive shaft to move the connecting member up and down, and the second The massage mechanism according to claim 3, wherein the driving unit is configured to move in a vertical direction.
5. The protrusion amount varying mechanism is
   On the outer peripheral surface between the base ends of the pair of massage members of the rotational drive shaft, there is a screw screw,
   The moving member includes a ring member in which a spiral inner tooth that meshes with the screw screw is formed on an inner peripheral surface, and a support member that is slidably fitted to and supported by the ring member. And
   When the rotation drive shaft rotates, the ring member moves in the left-right direction on the screw screw, swings the connecting member in the up-down direction, and moves the second drive unit in the up-down direction. The massage mechanism according to claim 4, wherein:
6. When the ring member is moving in the left-right direction on the screw screw, the ring member is not slid with respect to the support member,
   The massage mechanism according to claim 5, wherein when the movement of the ring member ends, the ring member slides with respect to the support member.
7. The one end and the other end of the connecting member are divided, the one end and the other end are connected by a spring member, and the length of the connecting member is variable. The massage mechanism according to any one of claims 1 to 6.
8. The massage mechanism according to claim 1, a seat part that can be placed on the floor and on which a user's buttocks can be seated, and a back part of the seat part that supports the user's back part A chair-type massage machine characterized by having a backrest portion that is provided and has the massage mechanism built therein.

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