JP2019187490A - Massage machine - Google Patents

Abstract

To provide a massage machine which is simple and compact overall, allows a massaging position to be switched easily, and can impart various massage effects to a user.SOLUTION: A massage machine 1 includes: a massage mechanism 30 for imparting a massage operation to a treatment part; a movement drive part 13 for moving the massage mechanism 30 along a predetermined trajectory 23 from one side of the trajectory 23 to the other side; and a switching mechanism 26 for switching the direction of movement of the massage mechanism 30 to a plurality of directions by changing a degree of flexion of the trajectory 23.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a massage machine in which a massage mechanism is accommodated. In particular, the present invention relates to a chair-type massage machine that is used while a user is seated on a seat.

  Conventionally, a massage mechanism of a chair-type massage machine is housed inside a backrest portion, and generates at least one massage operation of squeezing, striking, acupressure, and vibration. As a massage machine which accommodates such a massage mechanism (back massage device), for example, there is one shown in Patent Document 1.

JP 2014-210005 A

By the way, there has been a request from the user to perform various massages on the treatment section such as the shoulder.
As a response to the demand, for example, as shown in Patent Document 1, there is a massage machine including an advancing / retreating mechanism that makes a forward protrusion amount of a treatment element (massage member) variable. This advance / retreat mechanism causes the treatment element to protrude forward by inflating an airbag (air cell) (see FIG. 27 and the like).

However, since the advance / retreat mechanism is an airbag, it is compressed and deformed by the load of the user and the like, and it is considered that the treatment element does not protrude as expected in an actual massage operation. That is, there is a possibility that the push to the treatment part becomes weak.
Conventionally, many guide rails for moving a massage mechanism in a chair-type massage machine up and down are fixed in a continuous manner (see FIGS. 13 to 19 in Patent Document 1). In the case of such a massage machine including a single fixed guide rail, the amount of protrusion of the treatment element forward is limited.

That is, even if the advance / retreat mechanism as in Patent Document 1 is adopted in a conventional massage machine having a single fixed guide rail, the amount of protrusion of the treatment element is not expected, so the effect of massage is low. There is a risk of becoming something.
In the case of a massage machine like patent document 1, it is unknown whether a user's request of performing various massages with respect to a treatment part can be realized reliably.

  Therefore, in view of the above problems, the present invention makes the entire apparatus simple and compact, can easily switch the position of the massage, and can give various massage effects to the user. The purpose is to provide.

In order to achieve the above object, the present invention takes the following technical means.
A massage machine according to the present invention includes a massage mechanism that imparts a massage operation to a treatment unit, a movement drive unit that moves the massage mechanism from one side of the track to the other side along a predetermined track, And a switching mechanism that switches the movement direction of the massage mechanism to a plurality of directions by changing the degree of bending of the trajectory.

Preferably, the switching mechanism has a connection portion that allows the massage mechanism to continuously move along a bending portion existing on the track when the bending degree of the track is changed. Good.
Preferably, the track is formed by assembling the first track and the second track in the longitudinal direction, and the connecting portion is formed at the portion where the track is attached. It is preferable that the degree of bending of the track is changeable by swinging one track or the second track about an axis perpendicular to the longitudinal direction.

  Preferably, the track is formed by attaching the first rail member and the second rail member in the longitudinal direction, and the massage mechanism rolls on the first rail member and the second rail member. Or it has a guide member that slides, and the massage mechanism continuously moves from the first rail member to the second rail member by the guide member continuously moving the connecting portion. Good.

  Preferably, the massage mechanism has a rotation shaft that is arranged in a direction intersecting the trajectory and transmits a rotation driving force of the movement driving unit, and a driving member provided on the rotation shaft, and the driving member The massage mechanism is configured to move from one side of the track to the other side or from the other side to the one side by the transmitted rotational driving force, and the guide member continuously moves the connection part, When the massage mechanism moves from the first rail member to the second rail member, the massage mechanism is configured to tilt around the axis of the rotation shaft that transmits the rotation driving force of the movement drive unit. It is good to have.

Preferably, a drive rail member included in the drive member is disposed along the first rail member, and an end portion of the drive rail member is separated from the connection portion toward the second rail member side. It should be deployed.
Preferably, in the connection portion, the first rail member has a first connection piece projecting in the longitudinal direction, and the second rail member has a second connection piece projecting in the longitudinal direction, The connection piece and the second connection piece are arranged so as to overlap in a side view, and the side face of the first connection piece and the side face of the second connection piece have any bending angle of the track. Even if it exists, it maintains the contact state, and the guide surface of the first connection piece and the guide surface of the second connection piece are in a continuously connected state, and the guide surface of the first connection piece At least one of the second connection piece and the guide surface may be in a state of always contacting the guide member.

  Preferably, a main body portion provided with the massage mechanism, a swinging portion that is swingable with respect to the main body portion, and a posture of the swinging portion in a predetermined direction with respect to the main body portion. A posture changing portion that changes by swinging, the main body portion is provided with the first rail member, and the swinging portion is provided with the second rail member, When the posture of the swinging portion is changed by the posture changing portion, the degree of bending of the second rail member is changed by the switching mechanism, and the massage mechanism is continuously moved from the main body portion to the swinging portion. It is good to move.

  Preferably, the posture changing unit may be a ratchet mechanism capable of changing the degree of inclination of the swinging unit in a plurality of directions.

  ADVANTAGE OF THE INVENTION According to this invention, while making the whole apparatus simple and compact, while being able to switch the position of a massage easily, a various massage effect can be provided to a user.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the whole massage machine concerning this invention (the left figure: the state which the main-body part of a backrest part and a headrest part are the same inclination (1st attitude | position), the right figure: a headrest part falls forward The massage mechanism protrudes forward from the main body (second posture). It is a front view which shows the massage machine concerning this invention (left figure: 1st attitude | position, right figure: 2nd attitude | position). It is sectional drawing of the massage machine concerning this invention (left figure: AA cross section, right figure: BB cross section). It is a perspective view of a massage machine at the time of the 1st posture (AA section). It is the figure which expanded the connection part (C part) of a switching mechanism (1st attitude | position). It is a perspective view of a massage machine at the time of the 2nd posture (BB section). It is the figure which expanded the connection part (D part) of the switching mechanism (2nd attitude | position). It is a figure which shows the continuous movement condition of the guide member in the time of a 2nd attitude | position (1st rail-connection part-2nd rail).

Hereinafter, an embodiment of a massage machine 1 according to the present invention will be described with reference to the drawings.
In this embodiment, the chair-type massage machine 1 will be described as an example. However, this is an example in which the present invention is embodied, and the configuration of the present invention is not limited by the specific example. .
In addition, in the drawings, some components are not illustrated for easy understanding.

In the following description, the direction shown in the drawings is the direction when the massage machine 1 is described. This coincides with the direction seen from the user seated on the massage machine 1.
1-8 has shown embodiment of the massage machine 1 concerning this invention.
The state shown in the left diagram of FIGS. 1 to 3, 4, and 5 is referred to as a “first posture” of the massage machine 1.

The state shown in the right diagrams of FIGS. 1 to 3 and FIGS. 6 to 8 is referred to as a “second posture” of the massage machine 1.
The first posture and the second posture are examples for explaining the present embodiment, and are not limited to these postures (inclination angles). That is, you may make it have several attitude | positions other than these attitude | positions.

As shown in FIG. 1 and the like, a massage machine 1 according to the present embodiment includes a seat 2 on which a user can be seated, and a backrest provided so as to extend upward from the seat 2 and the rear end side. 3, seated on the seat 2, and massaged on the waist from the neck and shoulders of the user who leans on the backrest 3.
That is, when using the massage machine 1, the user sits down with the seat 2 placed on the back, and the backrest 3 with the back, and the massage mechanism 30 accommodated inside the backrest 3. Using this, treatment is performed from the user's neck and shoulders to the waist, that is, the back part (treatment part) is massaged.

In addition, about this massage machine 1, for example, when reclining is possible, in various attitude | positions (an inclination attitude | position, a standing attitude | position, etc.) of the backrest part 3, a user's back part can be massaged.
The seat portion 2 has an area enough for a user to sit on, and a cushioning material is provided on the seat surface (upper surface) side.

  The backrest part 3 is a member that is disposed on the rear end side of the seat part 2 so as to stand up in the front-rear direction and supports the user's back part (waist part to shoulder part) over the entire surface. is there. This backrest part 3 is a housing | casing which the width | variety is a little wider than a user's shoulder width, is a plate shape (plate shape) long in the up-down direction, and the inside became a cavity. Further, the backrest 3 has a thinner thickness in the front-rear direction than in the width direction.

That is, the backrest part 3 is arranged so that a user's back part may be followed. The backrest 3 has a plate-like base body 6 (rear cover) that is long in the vertical direction and a covering body 7 (front cover) that covers the front surface of the base body 6.
The base body 6 is formed in a plate shape that is thin in the front-rear direction and elongated in the up-down direction. In other words, it can be said that the base body 6 is open toward the front and is formed in a shallow concave shape.

A massage mechanism 30 (details will be described later) is attached to the front surface of the base body 6 so as to be movable in the vertical direction. That is, the massage mechanism 30 provided on the front surface of the base body 6 is moved from one side of the track 23 to the other side (vertical direction) along the predetermined track 23 by the movement drive unit 13 (details will be described later). To do.
The covering body 7 has a thin thickness in the front-rear direction and is formed in a plate shape that is long in the up-down direction like the base body 6. In other words, it can be said that the covering 7 is formed in a shallow concave shape that opens rearward.

That is, the covering body 7 covers the entire front surface of the base body 6 to close the opening facing the front of the base body 6.
In addition, an opening 8 is formed on the center side in the width direction of the cover 7 so as to open forward along the vertical direction.
The opening 8 is narrower in the left-right direction than the width of the cover 7 and has the same length as the vertical direction of the cover 7. That is, when the opening 8 is viewed from the front, the opening is formed in a strip shape that is long in the vertical direction.

Along the opening 8, the massage mechanism 30 moves on the front surface of the base body 6 (inside the backrest 3) freely in the vertical direction (longitudinal direction). That is, the opening 8 is a moving area where the massage mechanism 30 moves up and down.
Further, the opening 8 is covered with a cloth-like front cover body (not shown) without a gap so that the massage mechanism 30 does not directly hit the user's back (treatment part).

That is, in the backrest part 3, the base body 6 and the covering body 7 are overlapped in the front-rear direction, and a space is formed in the overlapped interior. The backrest 3 accommodates the massage mechanism 30 so as to be movable along the opening 8 that is long in the vertical direction. Moreover, the opening part 8 of the covering body 7 is arranged so that the treatment element 33 of the massage mechanism 30 protrudes forward, and is closed by a front cover body or the like.
As shown in FIGS. 1 to 6 and the like, in the present embodiment, the backrest portion 3 includes a main body portion 4 that is supported by hanging from the shoulder portion of the user to the waist portion, and a headrest portion that is supported by hanging from the neck to the head portion. 5 (swinging part), and is divided into two vertically. The headrest portion 5 can swing with respect to the main body portion 4.

A pair of right and left posture changing portions 9 are provided between the main body portion 4 and the headrest portion 5 to engage the headrest portion 5 in a predetermined posture by swinging the headrest portion 5 in a predetermined direction with respect to the main body portion 4. ing.
In addition, about the base body 6, let the main-body part 4 side be the 1st base body 6a, and let the headrest part 5 side be the 2nd base body 6b. Similarly, in the covering 7, the main body 4 side is referred to as a first covering 7 a and the headrest 5 side is referred to as a second covering 7 b. Similarly for the opening 8, the main body 4 side is the first opening 8 a and the headrest 5 side is the second opening 8 b.

As shown in FIG. 1, the posture changing unit 9 supports the headrest portion 5 (swinging portion) so as to be swingable with respect to the main body portion 4 and engages the headrest portion 5 in a predetermined posture. The posture changing unit 9 maintains the posture of the swinging unit 5 in a plurality of directions by changing the degree of inclination.
The posture changing unit 9 is disposed between the main body unit 4 and the headrest unit 5 and at least one of the left and right sides of the headrest unit 5.

The posture changing unit 9 is provided in the headrest unit 5 and is engaged with the engaging member 10 that is engaged when the headrest unit 5 is changed to a predetermined posture, and the engaging member 10 is rotated about the axis that faces the left-right direction. A support shaft 11 that is swingably supported, and a support member 12 that is provided on the main body portion 4 and supports the support shaft 11 are provided.
The posture changing unit 9 swings the headrest unit 5 in a predetermined posture (massage position) in the front-rear direction by engaging the support member 12 of the main body unit 4 and the engaging member 10 of the headrest unit 5. It is set as the structure which makes it possible to stop and to maintain the attitude | position.

The posture changing unit 9 is, for example, a posture (first posture) in which the headrest portion 5 is swung back to the same inclination as the inclination of the main body portion 4, or a posture in which the headrest portion 5 is swung forward and bent. Change to a plurality of postures such as (second posture). In addition, about the attitude | position of the headrest part 5, it is not limited to what was illustrated.
In addition, about the structure of the attitude | position change part 9, if the headrest part 5 is fixed in the position used as the predetermined attitude | position in the front-back direction and it changes to another attitude | position, if it is the structure which can cancel | release fixation of the headrest part 5, it will be especially limited. Don't do it.

For example, you may employ | adopt the ratchet mechanism etc. which can change the inclination degree of the headrest part 5 to a several direction for the attitude | position change part 9. FIG.
Now, the massage mechanism 30 of this embodiment is provided with the movement drive part 13 which moves the said massage mechanism 30 to an up-down direction.
As shown in FIGS. 1 to 6, the movement drive unit 13 is provided below the drive unit of the massage mechanism 30, and the lift unit 14 that lifts and lowers the massage mechanism 30 and the massage mechanism 30. And a guide portion 21 that guides along the member 18.

The elevating unit 14 converts the elevating motor 15 that generates the rotational driving force, the gear box 16 that decelerates the rotational driving force to a predetermined speed, the rotating shaft 17 that rotates by the rotational driving force, and converts the rotational driving force into the elevating operation And an elevating member 18 to be operated.
As for the raising / lowering motor 15, the output shaft 15a faces the left direction, and the output shaft 15a is inserted in the side gear box 16. The gear box 16 has a rotating shaft 17 (elevating shaft) below the output shaft 15a and penetrates in the left-right direction. The gear box 16 decelerates the output rotational driving force to a predetermined speed and transmits it to the lifting shaft.

The elevating shaft is provided in a direction (left-right direction) in which the axis intersects the direction of the track 23 (details will be described later), and a gear box 16 is provided in the center in the longitudinal direction. That is, the lifting shaft is connected to the lifting motor 15 via the gear box 16. A lifting member 18 is provided on the end side of the lifting shaft.
The elevating member 18 has a driving member 19 provided on the elevating shaft and a driving rail member 20 on which the driving member 19 moves. In the present embodiment, the drive member 19 is a pinion gear, and the drive rail member 20 is a rack gear.

The pinion gears 19 are respectively attached to both end portions of the lifting shaft, and rotate with the rotation of the lifting shaft. A rack gear 20 is disposed on the front surface of the first base body 6 a facing the pinion gear 19.
The rack gear 20 has rack teeth arranged in a straight line along the vertical direction, and the pinion gear 19 meshes. When the pinion gear 19 moves on the rack gear 20, the rotational driving force of the elevating shaft is converted into a linear movement operation in the vertical direction, and the massage mechanism 30 is raised and lowered in the backrest 3.

A guide portion 21 that guides the massage mechanism 30 in the vertical direction is disposed on the outer side of the elevating member 18 in the left-right direction.
The guide unit 21 includes a guide member 22 attached to the side of the massage mechanism 30 (such as both ends of the lifting shaft) and a track 23 that guides the guide member 22 from one side to the other side. Yes.

  As shown in FIG. 3 to FIG. 8 and the like, the guide member 22 is a roller member 22 that is inserted into the track 23 so as to roll or slide in an axial direction. The roller member 22 has a diameter substantially the same as the height (groove height) in the track 23, and the height in the axial direction is larger than the depth (groove depth) in the track 23. Thereby, the roller member 22 can move in the track 23.

The roller member 22 is provided with a pair (upper roller member 22a) on the left and right sides of the upper part of the massage mechanism 30 (casing 41), and a pair (lower roller member 22b) is provided on the lower left and right sides (left and right ends of the lifting shaft). It has been. That is, the roller members 22 are respectively provided at substantially four corners of the massage mechanism 30.
The track 23 is a rail member 23 into which the roller member 22 fits so as to roll or slide. Hereinafter, the track 23 will be described as the rail member 23.

When the position of the headrest portion 5 is changed from the first posture to the second posture by the posture changing portion 9, the rail member 23 is configured to be bent and switched in the changed direction. .
The rail member 23 of the present embodiment includes a first rail member 24 and a second rail member 25, and is formed by attaching the first rail member 24 and the second rail member 25 in the longitudinal direction. Yes.

In the present embodiment, of these two rail members 24, 25, the second rail member 25 can be bent in the front-rear direction with respect to the first rail member 24.
That is, when the first rail member 24 and the second rail member 25 are changed to the first posture, the associated parts are close to each other. Further, the associated parts are separated when they are changed to the second posture.

A pair of first rail members 24 are provided on the left and right sides of the first opening 8 a (main body portion 4), and are arranged in parallel with the rack gear 20. The length of the first rail member 24 is substantially the same as the length of the first opening 8a in the longitudinal direction (vertical direction).
The first rail member 24 has two side walls, a front side wall 24a and a rear side wall 24b. The front side wall 24a is formed on the first covering body 7a, and the rear side wall 24b is formed on the first base body 6a. . The front side wall 24a and the rear side wall 24b of the first rail member 24 are arranged so as to face each other in the front-rear direction. The distance between the front side wall 24 a and the rear side wall 24 b (groove width) is substantially the same as the diameter of the roller member 22.

A pair of second rail members 25 are provided on both the left and right sides of the second opening 8b (headrest portion 5). The length of the second rail member 25 is substantially the same as the length of the second opening 8b in the longitudinal direction (vertical direction).
The second rail member 25 has two side walls, a front side wall 25a and a rear side wall 25b. The front side wall 25a is formed on the second covering body 7b, and the rear side wall 25b is formed on the second base body 6b. . The front side wall 25a and the rear side wall 25b of the second rail member 25 are arranged to face each other in the front-rear direction. The distance between the front side wall 25 a and the rear side wall 25 b (groove width) is substantially the same as the diameter of the roller member 22.

About the width | variety (depth of a groove | channel) of the 1st rail member 24 and the 2nd rail member 25, it is supposed that the outer peripheral surface of the roller member 22 can fully contact | connect.
Between the upper part of the first rail member 24 and the lower part of the second rail member 25, a switching mechanism 26 that switches the moving direction of the massage mechanism 30 is provided.
As shown in FIGS. 3 to 8 and the like, the switching mechanism 26 switches the moving direction of the massage mechanism 30 to a plurality of directions by changing the bending degree of the first rail member 24 and the second rail member 25. is there.

In the switching mechanism 26, when the bending degree of the first rail member 24 and the second rail member 25 is changed, the massage mechanism 30 continues the bending portion existing on the first rail member 24 and the second rail member 25. It has a “connecting portion 27” that can be moved.
The connecting portion 27 is a joint that allows the roller member 22 to continuously travel even if it is bent at a portion where the upper end portion of the first rail member 24 and the lower end portion of the second rail member 25 are attached to each other. It is the part that became.

That is, the switching mechanism 26 swings the second rail member 25 (or the first rail member 24) around the axis perpendicular to the longitudinal direction (around the axis of the support shaft 11 of the posture changing unit 9) at the connection portion 27. The bending degree of the 1st rail member 24 and the 2nd rail member 25 is changed by making it move.
Since the roller member 22 is moved while the roller member 22 is continuously in contact with the connecting portion 27, the roller member 22 is guided without being separated from the first rail member 24 and the second rail member 25. It moves continuously from the member 24 to the second rail member 25 through the connecting portion 27.

  In the switching mechanism 26, for example, the headrest unit 5 is changed by the posture changing unit 9 from the “first posture” shown in FIGS. 4, 5, etc. to the “second posture” shown in FIGS. 6, 7, etc. Then, the second rail member 25 is inclined in the same direction (front direction) as the headrest portion 5 among the plurality of moving directions, and the connecting portion 27 is bent. The connecting portion 27 in which the bent portion is formed is a “transfer portion” that allows the massage mechanism 30 to be guided between the first rail member 24 and the second rail member 25 without interruption.

That is, the switching mechanism 26 prevents the roller member 22 from providing a “non-contact section” where the roller member 22 does not contact both the first rail member 24 and the second rail member 25.
In other words, when the roller member 22 finishes traveling on the first rail member 24, the roller member 22 immediately travels on the second rail member 25 by passing through the connecting portion 27 of the bent portion that can be changed by the switching mechanism 26. Can do.

In addition, the upper end part of the rack gear (drive rail member 20) is disposed at a position away from the connection part 27 toward the second rail member 25 side.
As shown in FIGS. 4 to 8 and the like, the connecting portion 27 includes a first connecting piece 28 protruding in the longitudinal direction from the first rail member 24, and a direction opposite to the first connecting piece 28, and the second rail member. 25 has a second connection piece 29 protruding in the longitudinal direction.

  Specifically, the first connection piece 28 and the second connection piece 29 are arranged to be alternated in a front view. For example, when the first connection piece 28 extends upward from the right side of the first rail member 24, the second connection piece 29 extends downward from the left side of the second rail member 25. In addition, about the 1st connection piece 28 and the 2nd connection piece 29, the opposite deployment position (arranged right and left reverse) may be sufficient.

  Moreover, the 1st connection piece 28 and the 2nd connection piece 29 are arrange | positioned so that it may overlap in the side view (refer FIG.5, FIG.7 etc.). That is, the upper end of the guide surface 28b of the first connection piece 28 overlaps the lower end of the guide surface 29b of the second connection piece 29 even when the first rail member 24 and the second rail member 25 are bent. Yes. This is the connecting portion 27, which is a “transfer section” for the roller member 22 to move from the first rail member 24 to the second rail member 25.

  The side surface 28a facing the outside of the first connection piece 28 and the side surface 29a facing the inside of the second connection piece 29 are arranged to face each other. Further, the guide surface 28b facing the front of the first connection piece 28 and the guide surface 29b facing the front of the second connection piece 29 are continuously connected, and the guide of the first connection piece 28 At least one of the surface 28 b and the guide surface 29 b of the second connection piece 29 is always in contact with the roller member 22.

That is, the first connection piece 28 and the second connection piece 29 are provided so as to be attached to each other in the left-right direction, and the bending angles of the first rail member 24 and the second rail member 25 are any. Maintain contact.
For example, when the roller member 22 traveling in the first rail member 24 moves to the second rail member 25 when the first rail member 24 and the second rail member 25 are bent, the roller member 22 is connected to the connecting portion 27. When it comes to contact with the guide surface 28b of the first connection piece 28, the contact surface 29b of the second connection piece 29 starts to come into contact.

Thereby, the massage mechanism 30 moves on the first rail member 24 and the second rail member 25 from one side (upper side) to the other side (lower side) or from the other side to one side.
That is, in the connection portion 27, there is a section where the roller member 22 contacts both the guide surface 28 b of the first connection piece 28 and the guide surface 29 b of the second connection piece 29.
Further, when the roller member 22 continuously moves on the connecting portion 27 and the massage mechanism 30 moves from the first rail member 24 to the second rail member 25 through the connecting portion 27, the movement driving portion 13 is moved. The massage mechanism 30 is inclined around the axis of the rotary shaft 17 (lifting shaft) that transmits the rotational driving force.

That is, the massage mechanism 30 is supported so as to be swingable around the axis of the rotation shaft 17 (elevating shaft) of the movement drive unit 13.
As described above, the massage mechanism 30 swings around the axis of the rotating shaft 17 (elevating shaft) due to the switching of the moving direction by the switching mechanism 26 and the lifting by the movement driving unit 13, and thus the backrest unit 3. It can protrude further forward.

Next, an outline of the configuration of the massage mechanism 30 will be described.
In addition, about the fundamental apparatus structure of the massage mechanism 30 demonstrated below, it is substantially the same as the structure etc. which are described in Unexamined-Japanese-Patent No. 2011-131039, for example.
As shown in FIGS. 2, 4, 6, and the like, the massage mechanism 30 of the present embodiment penetrates the massage member 31 that gives a massage operation to the treatment part (back part) and the proximal end side of the massage member 31. A massage rotation shaft 34, a drive unit 35 that rotates the massage rotation shaft 34, a conversion unit 38 that converts the rotational force of the massage rotation shaft 34 into a massage operation, and a movement drive unit that moves the massage member 31 up and down 13.

A pair of massage members 31 are provided at predetermined intervals in the left-right direction. The massage member 31 has an arm member 32 that protrudes from the drive unit 35 toward the user side (toward the front).
The arm member 32 has a distal end that projects in two directions, diagonally forward and upward, and diagonally forward and downward, and a treatment element 33 is provided at each of the branched upper and lower distal ends. A midway portion in the longitudinal direction of the arm member 32 is a base end of the massage member 31.

The treatment element 33 massages a user's back part (treatment part) such as a shoulder, and is a member formed in a spherical shape.
When the pair of left and right massage members 31 approach and separate from each other, the treatment element 33 on the left side and the treatment element 33 on the right side repeat the approach and separation in the left and right direction, thereby massaging the treatment part.

The massage rotation shaft 34 is arranged so that its axis is directed in the horizontal direction, and is rotatably supported by a support portion 42 provided on the casing 41. The massage rotation shaft 34 penetrates the conversion portion 38 provided at the proximal end of the massage member 31 in the left-right direction.
The drive unit 35 is disposed in the casing 41 and between the pair of left and right massage members 31. The drive unit 35 includes a drive motor 36 that generates a rotational drive force, and a gear box 37 that transmits the rotational drive force to the massage rotation shaft 34 by decelerating the rotational drive force to a predetermined speed.

The drive motor 36 has an output shaft 36a facing leftward, and the output shaft 36a is inserted into a side gear box 37. In the gear box 37, the massage rotation shaft 34 is below the output shaft 36a and penetrates in the left-right direction. The gear box 37 decelerates the output rotational driving force to a predetermined speed and transmits it to the massage rotation shaft 34.
The conversion unit 38 converts the rotational force of the massage rotation shaft 34 into a massage operation (proximity separation operation) of the massage member 31. The conversion part 38 is provided in the base end side of a pair of massage member 31, respectively, and the massage rotating shaft 34 has penetrated rotatably.

The conversion part 38 is provided at the base end of the massage member 31 with the inclined boss part 39 that rotates integrally with the massage rotation shaft 34, and the massage member 31 rotates the massage member 31 by massaging. And a restricting portion (not shown) that restricts the accompanying rotation with the shaft 34.
The inclined boss portion 39 has a massage rotation shaft 34 fitted thereto, and rotates together with the massage rotation shaft 34. An inclined cam surface with respect to the massage rotation shaft 34 is provided on the outer peripheral surface of the inclined boss portion 39. The inclined boss portion 39 is inclined and rotated with respect to the axis of the massage rotation shaft 34. The inclination of the inclined boss portion 39 (cam surface) is inclined relative to each other in the opposite direction between the pair of left and right massage members 31.

The annular fitting portion 40 is formed at the proximal end of the massage member 31 and externally fits the inclined boss portion 39 in a relatively rotatable state. When the annular fitting portion 40 externally fits the inclined boss portion 39 that is inclined and rotated, the massage member 31 performs a swinging motion.
The restricting portion restricts the annular fitting portion 40 from rotating with respect to the inclined boss portion 39, and is disposed on the rear side (casing 41 side) of the annular fitting portion 40. The restricting portion has a restricting pin provided in the annular fitting portion 40 and a restricting groove into which the restricting pin is slidably fitted.

The restriction pin protrudes in the opposite direction (rear direction) of the massage member 31 protruding forward from the annular fitting portion 40. The restriction groove is long in the left-right direction, and is provided in the casing 41 facing the restriction pin. A restriction pin is slidably inserted into the restriction groove, and the restriction pin swings in the left-right direction.
The movement drive unit 13 is as described above.

Below, the operation | movement aspect of the massage machine 1 of this embodiment is demonstrated.
First, the situation in the “first posture” will be described with reference to the left diagram of FIG. 3, FIG. 4, FIG.
The headrest unit 5 is brought into a “first posture” state having the same inclination as the inclination of the main body unit 4 by the posture changing unit 9.

The switching mechanism 26 tilts the second rail member 25 rearward so as to be on the same straight line (same track) as the first rail member 24 in accordance with the posture of the headrest portion 5.
As shown in FIGS. 4 and 5, at this time, the first rail member 24 and the second rail member 25 are brought together, and the guide surface 28b of the first connection piece 28 and the guide surface 29b of the second connection piece 29 are surfaces. It is one. A portion where the two guide surfaces 28 b and 29 b are flush with each other is a connection portion 27.

Moreover, the side surface 28a of the 1st connection piece 28 and the side surface 29a of the 2nd connection piece 29 have the large overlap part (overlap) part by the side view. The first rail member 24 to the connecting portion 27 to the second rail member 25 are in a state where the track 23 is connected to one.
In this state, when the movement drive unit 13 is operated and the massage mechanism 30 is raised along the first rail member 24, the upper roller member 22 a of the massage mechanism 30 travels inside the first rail member 24. Subsequently, when the upper roller member 22a reaches the upper portion of the first rail member 24, the first connecting piece 28 and the second connecting piece 29 travel along the connecting portion 27 that overlaps greatly. When the traveling of the connecting portion 27 is completed, the upper roller member 22a travels in the second rail member 25.

In this way, the roller member 22 continuously and smoothly travels from the first rail member 24 to the connecting portion 27 to the second rail member 25.
First, the situation in the “second posture” will be described with reference to the right diagram of FIG. 3 and FIGS. 6 to 8.
The headrest unit 5 is brought into a “second posture” state of bending forward by the posture changing unit 9.

The switching mechanism 26 tilts the second rail member 25 forward in accordance with the forward bending posture of the headrest portion 5.
That is, when the posture of the headrest unit 5 is changed by the posture changing unit 9, the switching mechanism 26 changes the degree of bending of the second rail member 25.
As shown in FIGS. 6 and 7, at this time, the track 23 composed of the first rail member 24 and the second rail member 25 is L-shaped bent backward. The bent portion at this time is the connecting portion 27.

In the connection portion 27, the upper end of the guide surface 28b of the first connection piece 28 and the lower end of the guide surface 29b of the second connection piece 29 overlap in a side view. About the overlap part at the time of this "2nd attitude | position", although smaller than at the time of a "1st attitude | position", the roller member 22 can run continuously.
In other words, the track 23 composed of the first rail member 24 to the connecting portion 27 to the second rail member 25 overlaps the first connecting piece 28 and the second connecting piece 29 in the traveling direction of the roller member 22 even in a bent state. It is in a state of being connected to one without interruption (see FIG. 7, FIG. 8, etc.).

In this state, when the movement drive unit 13 is operated and the massage mechanism 30 is raised along the first rail member 24, the upper roller member 22 a of the massage mechanism 30 travels inside the first rail member 24. Subsequently, when the upper roller member 22 a reaches the upper portion of the first rail member 24, the first connection piece 28 travels.
Further, when the upper roller member 22 a reaches the upper end of the first connection piece 28, the upper roller member 22 a overlaps with the lower end of the second connection piece 29 and travels in contact with the “connection portion 27” that is a bent portion.

That is, the upper roller member 22a contacts both the first connection piece 28 and the second connection piece 29 and continuously travels through the “connection portion 27”.
When the upper roller member 22 a is separated from the first connection piece 28 (connection portion 27), the upper roller member 22 a runs on the second connection piece 29 that is already in contact, and then travels within the second rail member 25.
The massage mechanism 30 is moved upward from the main body 4 to the headrest 5 by the movement drive unit 13 and continuously moves, and swings forward around the axis of the lifting shaft (lower roller member 22b). .

At this time, the treatment element 33 of the massage member 31 protrudes forward from the main body portion 4 and the headrest portion 5 and is switched to a predetermined massage position.
As described above, the feature of the massage machine 1 of the present embodiment is that when the movement drive unit 13 moves the massage mechanism 30 along the predetermined track 23 (rail member) from one side to the other side, It is in having the switching mechanism 26 which can switch the moving direction of the massage mechanism 30 by changing the bending degree of the track 23.

That is, the massage machine 1 of the present embodiment has a function that allows the massage mechanism 30 to move in the direction in which the headrest portion 5 is inclined.
Further, when the massage mechanism 30 is moved from one side to the other side, it is also characterized in that a switching portion (connecting portion 27) that can smoothly shift the moving direction is provided.

By providing the track 23 and the switching mechanism 26 as described above, the position of the massage can be easily switched and various massage effects can be given to the user. Further, the entire apparatus can be made simple and compact.
In addition, about the structure of the track | orbit 23 and the switching mechanism 26 demonstrated by this embodiment, it is an example and is not limited to this.

The embodiment disclosed this time should be considered as illustrative in all points and not restrictive.
For example, the rotary shaft 17 (lifting shaft) provided with the drive member 19 and the massage rotating shaft 34 provided in the massage mechanism 30 and imparting a massage operation to the treatment portion are provided. ) And the massage rotation shaft 34 may be the same or coaxial.

In the present embodiment, the rail member 23 (track) is divided into the first rail member 24 and the second rail member 25, but may be a single bendable rail member.
In particular, in the embodiment disclosed this time, matters that are not explicitly described, such as operating conditions and operating conditions, dimensions and weights of components, do not deviate from the range normally practiced by those skilled in the art. If it is a trader, items that can be easily assumed are adopted.

DESCRIPTION OF SYMBOLS 1 Massage machine 2 Seat part 3 Backrest part 4 Main-body part 5 Headrest part 6 Base body 6a 1st base body 6b 2nd base body 7 Cover body 7a 1st cover body 7b 2nd cover body 8 Opening part 8a 1st opening part 8b 2nd opening part 9 Posture change part 10 Engagement member 11 Support shaft 12 Support member 13 Movement drive part 14 Lifting part 15 Lifting motor 15a Output shaft 16 Gear box 17 Rotating shaft (lifting shaft)
18 Lifting member 19 Drive member (pinion gear)
20 Drive rail member (rack gear)
21 Guide part 22 Guide member (roller member)
22a Upper roller member 22b Lower roller member 23 Track (rail member)
24 first rail member 24a front side wall 24b rear side wall 25 second rail member 25a front side wall 25b rear side wall 26 switching mechanism 27 connection portion 28 first connection piece 28a side surface 28b guide surface 29 second connection piece 29a side surface 29b guide surface 30 massage Mechanism 31 Massage member 32 Arm member 33 Treatment element 34 Massage rotation shaft 35 Drive portion 36 Drive motor 36a Output shaft 37 Gear box 38 Conversion portion 39 Inclined boss portion 40 Annular fitting portion 41 Casing 42 Support portion

Claims (9)

A massage mechanism for imparting a massage operation to the treatment section;
A movement drive unit for moving the massage mechanism along a predetermined trajectory from one side of the trajectory to the other side;
By changing the degree of bending of the trajectory, a switching mechanism that switches the movement direction of the massage mechanism to a plurality of directions;
A massage machine characterized by comprising:   The switching mechanism has a connecting portion that enables the massage mechanism to continuously move a bent portion existing on the track when the bending degree of the track is changed. The massage machine according to claim 1. The track is formed by attaching the first track and the second track in the longitudinal direction,
The connecting part is formed in the part that is associated,
The degree of bending of the track can be changed by swinging the first track or the second track about an axis perpendicular to the longitudinal direction in the connection portion. 2. The massage machine according to 2. The track is formed by attaching the first rail member and the second rail member in the longitudinal direction,
The massage mechanism has a guide member that rolls or slides on the first rail member and the second rail member,
The massage according to claim 3, wherein the massage mechanism is continuously moved from the first rail member to the second rail member by the guide member continuously moving the connection portion. Machine. The massage mechanism has a rotating shaft that is arranged in a direction intersecting the trajectory and transmits the rotational driving force of the movement driving unit, and a driving member provided on the rotating shaft,
With the rotational driving force transmitted by the driving member, the massage mechanism is configured to move from one side of the track to the other side or from the other side to the one side,
When the guide member continuously moves in the connecting portion and the massage mechanism moves from the first rail member to the second rail member, the rotation that transmits the rotational driving force of the moving drive portion. The massage machine according to claim 4, wherein the massage mechanism is configured to tilt around an axis of the shaft. A drive rail member included in the drive member is disposed along the first rail member, and an end portion of the drive rail member is disposed at a position away from the connection portion on the side opposite to the second rail member. The massage machine according to claim 4 or 5, characterized in that: In the connection portion, the first rail member has a first connection piece projecting in the longitudinal direction, and the second rail member has a second connection piece projecting in the longitudinal direction,
The first connection piece and the second connection piece are arranged to overlap in a side view,
The side surface of the first connection piece and the side surface of the second connection piece are kept in contact with each other regardless of the bending angle of the track,
The guide surface of the first connection piece and the guide surface of the second connection piece are continuously connected, and the guide surface of the first connection piece and the guide surface of the second connection piece The massage machine according to any one of claims 4 to 6, wherein at least one of the two is always in contact with the guide member. A body part provided with the massage mechanism, a rocking part that can rock with respect to the body part, and a posture of the rocking part rocking in a predetermined direction with respect to the body part. And a posture changing unit to change
The main body portion is provided with the first rail member,
The swinging portion is provided with the second rail member,
When the posture of the rocking portion is changed by the posture changing portion, the bending degree of the second rail member is changed by the switching mechanism, and the massage mechanism is continuously changed from the main body portion to the rocking portion. It moves. The massage machine of Claim 4 characterized by the above-mentioned. The massage machine according to claim 8, wherein the posture changing unit is a ratchet mechanism capable of changing the degree of inclination of the swinging unit in a plurality of directions.

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