JP2014042812A - Chair type massage machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair type massage machine whose posture is gradually changed by rocking a foot rest part and a back rest part regardless of a simple structure.SOLUTION: A chair type massage machine 1 includes: a seat part in which a user seats; a foundation frame 7 provided with the seat part at an upper part; a back rest part 3 arranged at a rear part of the seat part and rockable in a front and back direction with respect to the foundation frame 7; a foot rest part 4 provided at the front of the seat part freely rockably in the front and back direction, and a reclining mechanism 6 for rocking at least one between the back rest part 3 and the foot rest part 4. In the chair type massage machine 1, the reclining mechanism 6 can switch a linkage state in which the foot rest part 4 rocks in linkage with rocking of the back rest part 3, and a non-linkage state in which a rocking position of the foot rest part 4 is fixed, and only the back rest part 3 rocks.

Description

  The present invention relates to a chair type massage machine, and more particularly to a reclining mechanism of a chair type massage machine.

The chair type massage machine has a function of swinging the backrest part provided at the rear part of the seat part back and forth, or swinging the footrest part provided at the front part of the seat part back and forth, that is, a reclining function. There is something.
In a chair type massage machine having such a reclining function, the user can lift the user's foot by swinging the footrest part upward while tilting the user's upper body while reclining the backrest part backward. On the back. If it does in this way, comfortable massage operation can be provided, giving a user a feeling of relaxation.

  As a chair-type massage machine having a reclining function, for example, Patent Document 1 provides a main body frame, a seat provided on an upper portion of the main body frame and seated by a user, and a reclining portion provided on a rear portion of the main body frame. A backrest that supports the user's torso, a footrest that is pivotally provided at the front of the main body frame to support the user's legs, and at least a backrest that reclines the backrest In a chair having an actuator, a link member that vertically rotates the footrest in conjunction with reclining of the backrest portion, and the backrest portion or the backrest portion actuator so that the link member can be attached and detached. A link first attachment portion provided on the footrest, a link second attachment portion provided on the footrest, and the body frame. Provided over arm, the chair having a mounting portion of the surplus positioned to the link second attaching portion substantially matching positions in the lateral direction (the chair type massage machine) is disclosed.

  The reclining mechanism provided in this chair type massage machine is equipped with a backrest actuator that reclines the backrest part and a footrest actuator that individually pivots the footrest part up and down independently. By driving the actuators independently or in cooperation with each other, the backrest and the footrest are individually or interlockedly swung.

JP 2012-24374 A

As in the reclining mechanism of Patent Document 1, when the backrest actuator that swings the backrest portion and the footrest actuator that swings the footrest portion are provided independently, the swinging of the backrest portion and the footrest portion The chair can be changed to various postures by swinging individually.
However, on the other hand, a plurality of actuators are required, and there arises a problem that a reclining mechanism such as a drive mechanism tends to be complicated. Further, when a plurality of actuators are required, it is inevitable that the cost increases due to an increase in the number of parts of the chair type massage machine.

  Therefore, in order to simplify the reclining mechanism and reduce the cost of the chair-type massage machine, if the footrest part and the backrest part are swung by one actuator, the footrest part and the backrest part are interlocked and swung. The position that can be adjusted is greatly limited. In particular, in a chair type massage machine, there is a demand for realizing various reclining postures by individually swinging the footrest portion and the backrest portion. Therefore, the reclining mechanism in which the adjustable posture as in Patent Document 1 is greatly limited is not preferable, and it is not a chair type massage machine that relaxes the user and removes fatigue.

  The present invention has been made in view of the above-described problems, and provides a chair-type massage machine capable of changing the posture stepwise by swinging the footrest portion and the backrest portion while having a simple structure. The purpose is to do.

In order to achieve the above object, the present invention takes the following technical means.
That is, the chair type massage machine according to the present invention includes a seat portion on which a user is seated, a base frame provided with the seat portion at an upper portion, and a back and forth direction with respect to the base frame provided at the rear portion of the seat portion. A backrest portion that is swingable, a footrest portion that is swingable in the front-rear direction on the front surface of the seat portion, and a reclining mechanism that swings at least one of the backrest portion and the footrest portion. In the chair type massage machine, the reclining mechanism includes an interlocking state in which the footrest part swings in conjunction with the swinging of the backrest part, and the swinging position of the footrest part is fixed and only the backrest part swings. It is configured to be able to switch between a non-interlocking state that moves.

  Preferably, the interlocking state is such that the footrest part swings from a position where the footrest part hangs down to a position protruding forward in conjunction with swinging of the backrest part backward, and the non-interlocking state is The backrest portion is swung backward while the swinging position of the footrest portion is fixed, and the reclining mechanism includes a backrest portion and a footrest portion so as to switch from the interlocking state to the non-interlocking state. Should be driven.

  Preferably, the interlocking state is interlocked with swinging forward of the backrest part and interlocking with swinging until the footrest part hangs down from a position protruding forward, In the non-interlocking state, the backrest portion swings forward while the swing position of the footrest portion is fixed, and the reclining mechanism is connected to the backrest portion so as to switch from the non-interlocking state to the interlocking state. It is good to drive a footrest part.

  Preferably, the reclining mechanism includes a guide rail disposed along the front-rear direction with respect to the base frame, and a long pushing member inserted into the guide rail and movable along the guide rail. A drive member attached to the rear portion of the push-out member and pushing the push-out member forward; and a long link member connected to the drive member, the link member having an upper portion as the drive member It is preferable that the lower part is swingably connected to the base frame and swingable from a position facing diagonally rearward to a position facing diagonally forward with respect to the front-rear direction of the base frame.

Preferably, the lower portion of the link member is attached to a substantially middle portion in the front-rear direction below the base frame so as to be rotatable about a left-right axis.
Preferably, the drive member is formed with a long groove in the vertical direction, and the upper part of the link member is slidably fitted in the long groove, the link member swings, and the upper part of the link member It is preferable that the drive member is configured to convert the rocking motion of the link member into a linear motion along the front-rear direction of the push-out member by sliding in the long groove of the drive member.

  Preferably, an interlocking link member that enables interlocking of swinging of the link member and tilting of the backrest portion is provided between a longitudinal middle portion of the link member and a lower portion of the backrest portion, The interlocking link member has one end connected to the middle part in the longitudinal direction of the link member so as to be rotatable about the left-right axis and the other end connected to the lower portion of the backrest part so as to be rotatable about the left-right axis. Has been.

Preferably, an actuator that swings the backrest portion and the link member via the interlocking link member may be provided.
Preferably, an actuator that pushes and pulls the interlocking link member in the front-rear direction is provided between a middle part of the interlocking link member and the upper part of the foundation frame, and one side of the actuator is substantially the same as the upper part of the foundation frame. The actuator is connected to a central portion so as to be rotatable about a left-right axis, and the other side of the actuator is connected to the interlocking link member so as to be rotatable about a left-right axis, and the actuator is connected via the interlocking link member. The backrest portion and the link member may be configured to swing.

Preferably, the upper portion of the footrest portion is pivotally supported on the front surface of the seat portion so as to be swingable about a left and right axis, and the reclining mechanism is provided in a middle portion of the footrest portion and moves the footrest portion. It is good to have the rocking | swiveling switching member which switches between the said interlocking | linkage state and a non-interlocking state.
Preferably, the reclining mechanism can switch between an interlocking state and a non-interlocking state between the backrest portion and the footrest portion by changing an engagement state between the push-out member and the swing switching member. In the interlocked state, the front end portion of the push member is in an engaged state in contact with the swing switching member. In the non-interlocked state, the upper edge portion of the push member slides on the swing switch member. It is good to be in the engagement state which touches.

  Preferably, the reclining mechanism includes a guide rail disposed along the front-rear direction with respect to the base frame, and a long pushing member inserted into the guide rail and movable along the guide rail. A moving means for moving the pushing member in the front-rear direction along the guide rail, and a swing switching member for switching the movement of the footrest portion between a linked state and a non-linked state by changing a connected state with respect to the pushed member. It is good to have.

  Preferably, in the interlocking state, the reclining mechanism swings the footrest portion by the front end portion of the pushing member coming into contact with the swing switching member, and in the non-linking state, The upper edge portion may be configured to swing the backrest portion backward while the swing position of the footrest portion is fixed by slidingly contacting the swing switching member.

  Preferably, the pushing member and the guide rail are respectively provided on the left side and the right side of the seat part, and the moving means is connected to the left and right pushing members and the base frame with respect to the base frame. And an actuator that moves the connecting member in the front-rear direction. The actuator may have one end fixed to the lower side of the base frame and the other end connected to the connecting member.

Preferably, a swing link mechanism is provided between the base frame and the footrest portion to swing the footrest portion about a left-right axis with respect to the base frame. A swing switching member may be provided.
Preferably, the swing link mechanism is connected to the upper part of the base frame and extends from the upper part toward the front lower side, and is connected to the front side of the first link member and further from the front side. A second link member that extends forward and upward and is connected to the upper portion of the footrest portion; and a third link member that is connected to the base frame further below the first link member and extends from the base frame toward the front lower side. A fourth link member coupled to the front side of the third link member and extending further forward and upward from the front side and coupled to a footrest portion further above the second link member; and the first link member; A pivot member that pivotally supports the fourth link member about a left-right axis, and the first link member or the third link member, KiYurado may switch member.

  According to the chair type massage machine according to the present invention, the posture can be changed stepwise by swinging the footrest portion and the backrest portion while having a simple structure.

It is a perspective view at the time of seeing the chair type massage machine of 1st Embodiment from diagonally forward. It is the perspective view which showed the state which changed the attitude | position about the chair type massage machine of 1st Embodiment. It is the side view which showed the attitude | position change of the chair type massage machine of 1st Embodiment. It is a perspective view at the time of seeing the chair type massage machine of 1st Embodiment from the bottom side. It is the side view which showed rocking | fluctuation of the footrest part of 1st Embodiment in the case of switching from an interlocking state to a non-interlocking state. It is the side view which showed operation | movement of the reclining mechanism of 1st Embodiment in the case of switching from an interlocking state to a non-interlocking state. It is the side view which showed the standing posture of the chair type massage machine of 1st Embodiment, and is a figure which has a backrest part and a footrest part in an interlocking state. It is the side view which showed the halfway attitude | position of the chair type massage machine of 1st Embodiment, and is the figure which showed a mode that a backrest part and a footrest part switch from an interlocking state to a non-interlocking state. It is the side view which showed the inclination attitude | position of the chair type massage machine of 1st Embodiment. It is a perspective view at the time of seeing the chair type massage machine of 2nd Embodiment from diagonally forward. It is the side view which showed rocking | fluctuation of the footrest part of 2nd Embodiment in the case of switching from an interlocking state to a non-interlocking state. It is a perspective view at the time of seeing the chair type massage machine of 2nd Embodiment from the bottom side. It is the expanded side view which showed operation | movement of the reclining mechanism of 2nd Embodiment in the case of switching from an interlocking state to a non-interlocking state. It is the expanded side view which expanded and showed the rocking | swiveling switching member of 2nd Embodiment.

[First Embodiment]
Hereinafter, the chair type massage machine of the present invention will be described with reference to the drawings.
1 to 9 show an internal mechanism and a reclining operation of the chair type massage machine 1 according to the present invention.
In each drawing, a part of the structure is omitted for convenience of explanation. In the following description, the left-right direction in FIG. 7 is referred to as the front-rear direction in the actual apparatus, and the up-down direction in FIG. 7 is referred to as the up-down direction in the actual apparatus. The paper surface penetration direction in FIG. 7 is referred to as a horizontal direction or a width direction in an actual apparatus. These directions coincide with those seen from the user sitting on the chair type massage machine 1.

First, the basic configuration of the chair type massage machine 1 will be described.
As shown in FIG.1 and FIG.7, the chair type massage machine 1 is arrange | positioned at the base part 7 which equipped the seat part 2 where a user sits, this seat part 2 on the upper part, and the seat part 2 In addition, a backrest portion 3 that is swingable in the front-rear direction with respect to the base frame 7 and a footrest portion 4 that is swingably provided in the front-rear direction on the front surface of the seat portion 2 are provided. In addition, the base frame 7 is provided with a reclining mechanism 6 that swings at least one of the backrest portion 3 and the footrest portion 4.

In the drawings other than FIG. 7, the seat 2, backrest 3 and footrest 4 are all shown only in the internal frame structure, and members such as a cover which are usually provided outside the frame are not shown. It is omitted.
The seat portion 2 is a plate-like member having a sufficient width to support the user's buttocks from below, and is formed of a cushion material so that the user can easily sit. The seat portion 2 is arranged in an inclined shape that gently rises toward the front with respect to the horizontal plane so that the front end side is slightly higher than the rear end side. Can be taken down.

A base frame 7 that supports the seat 2 from below is disposed below the seat 2. The seat 2 is supported at a predetermined height from the floor surface F by the basic frame 7.
The base frame 7 is positioned between the lower frame 8 placed on the floor F facing the horizontal direction, the upper frame 5 supporting the seat 2 from below, and the upper frame 5 and the lower frame 8. And a support frame 9 for connecting the two in the vertical direction.

The upper frame body 5 and the lower frame body 8 are obtained by combining a plurality of rod-shaped members into a rectangle in plan view. The support frame 9 is composed of a bar-shaped member that faces in the vertical direction, and connects the lower surface of the upper frame 5 and the upper surface of the lower frame 8. Thus, the base frame 7 is formed in a tower shape by combining the upper frame body 5, the lower frame body 8, and the support frame body 9.
As shown in FIG. 1 and FIG. 2, among the above-described basic frame 7, four support frame bodies 9 are provided on the front side and the rear side of the upper frame body 5, one on each of the left and right sides. Yes. Of these four support frame bodies 9, a first swinging shaft part that swingably supports the backrest part 3 is supported on the upper part (upper end) of the two support frame bodies 9 arranged on the rear side. 11 are provided. The first swing shaft portion 11 is disposed so as to penetrate the upper end side of the rear column frame body 9 in the left-right direction, and the backrest portion 3 is formed around the upper end side of the rear column frame body 9. It can swing back and forth.

  Next, of the four support frame bodies 9, the second swing shaft part 12 that supports the footrest part 4 in a swingable manner is provided on the upper part (upper end) of the two support frame bodies 9 arranged on the front side. Are provided. The second swing shaft portion 12 is arranged so as to penetrate the upper end side of the front column frame body 9 in the left-right direction, and the footrest portion 4 extends in the vertical direction around the upper end side of the front column frame body 9. Can be swung.

  The backrest portion 3 disposed behind the base frame 7 is a thick plate-like member having a width in the vertical and horizontal directions, and is formed of a cushion material so that the user can easily lean against it. Further, a backrest frame 15 extending obliquely rearward is provided inside the backrest 3. The back frame 15 is pivotally supported by the upper end of the support frame 9 disposed on the rear side via the first swing shaft portion 11 described above at a position slightly closer to the lower end than the middle in the vertical direction. A massage mechanism (not shown) for massaging the upper limbs of a seated person is incorporated inside the backrest 3 of the present embodiment.

  When the upper end side of the backrest part 3 (backrest frame 15) is tilted backward with the first swinging shaft part 11 as the center, the posture of the user supported by the backrest part 3 becomes supine, and the chair type massage is performed. The machine 1 is in a reclining posture (tilted posture). Moreover, when the upper end side of the backrest part 3 is raised forward, the posture of the user is directed forward, and the chair-type massage 1 is in a standing posture.

  As shown in FIG. 7, the footrest part 4 is a member for placing the user's lower limbs (under the knees), and is disposed at the front end of the base frame 7 (seat part 2). A footrest support frame 13 that is rectangular in front view is provided inside the footrest portion 4. The footrest support frame 13 is a combination of a plurality of rod-like members in a rectangular shape, and includes a pair of left and right frames 36 and 37 and a frame that connects the lower ends of the frames 36 and 37 in the horizontal direction. In the case of this embodiment, the footrest part 4 is provided with a foot massage device (not shown) for massaging and massaging the user's lower limbs (particularly the calf).

  Specifically, the upper end side of the footrest support frame 13 (the upper end side of the pair of left and right frames 36 and 37) is pivotally supported by the second swing shaft portion 12 described above, and the footrest support frame 13 swings. It is supposed to be. That is, when the lower end side of the footrest portion 4 (footrest support frame 13) is raised forward around the second swing shaft portion 12, the user's lower limb supported by the footrest portion 4 faces upward, and the footrest portion When the lower end side of 4 is lowered, the user's lower limb faces downward.

As shown in FIG. 3, in the case of the chair type massage machine 1 of this embodiment, the backrest part 3 and the footrest part 4 described above swing as follows.
That is, from the standing posture in which the backrest portion 3 stands forward, to the midway posture in which the backrest portion 3 and the footrest portion 4 are substantially parallel, the backrest portion 3 reclines backward while the footrest portion 4 also swings upward. To do. After the midway posture in which the backrest portion 3 and the footrest portion 4 are substantially parallel, the footrest portion 4 is further reclined backward while being fixed at a position protruding forward. This movement is realized by the reclining mechanism 6 provided in the basic frame 7.

In the non-interlocking state of the reclining mechanism 6, “the footrest part 4 is fixed at a position protruding forward” means that the footrest part 4 does not interlock with the reclining (tilting operation) of the backrest part 3. This means that even if the backrest 3 continues to tilt, the position of the footrest 4 does not change without lowering.
In this embodiment, if the footrest part 4 in the position protruding forward (that is, the footrest part 4 fixed or regulated at the position protruding forward) is lifted by hand, the footrest part 4 is lifted upward. It is like that. However, since the footrest part 4 in the state is in a state not interlocked with the reclining (tilting operation) of the backrest part 3, the reclining mechanism 6 is in a “non-interlocking state”.

  Now, as shown in FIG. 3, specifically, the reclining mechanism 6 includes a guide rail 16 disposed along the front-rear direction with respect to the base frame 7, a guide rail 16 inserted into the guide rail 16, and the guide rail 16. A long extruding member 30 that is movable along, a driving member 31 that is attached to the rear portion of the extruding member 30 and pushes the extruding member 30 forward, and is connected to the driving member 31 in a vertically movable manner. Link member 18.

In addition, an interlocking link member 19 that performs reclining (tilting operation) of the backrest 3 with the swinging of the link member 18 is provided between the longitudinal middle portion of the link member 18 and the lower portion of the backrest 3. Is provided.
Further, the reclining mechanism 6 is provided with a swing switching member 33 that switches between an interlocking state in which the footrest part 4 is interlocked following the reclining of the backrest part 3 and a non-interlocking state in which only the backrest part 3 is reclining. The swing switching member 33 is provided at a midway portion in the longitudinal direction of the footrest support frame 13 constituting the footrest portion 4.

By making the engagement state of the swing switching member 33 and the pushing member 30 variable, the reclining mechanism 6 has an interlocking state in which the footrest portion 4 swings in conjunction with the swing of the backrest portion 3, and the footrest portion. 4 is fixed, and it is possible to switch between a non-interlocking state in which only the backrest 3 swings.
Next, the guide rail 16, the pushing member 30, the drive member 31, the link member 18, the interlocking link member 19, the actuator 14, and the swing switching member 33 constituting the reclining mechanism 6 will be described in detail.

  As shown in FIGS. 1 to 4, the guide rail 16 is a member formed in a long rectangular tube shape, and a long extrusion member 30 (details will be described later) is formed in the hollow of the guide rail 16. ) And can be guided in the longitudinal direction (laying direction). A pair of guide rails 16 are provided in the left-right direction of the base frame 7 and are attached to the upper position (position of about 1/3 from the top) of the front support frame body 9. The inner side of the guide rail 16 is open, the front end of the guide rail 16 is arranged on the same plane as the front surface of the front support frame 9, and the rear end of the guide rail 16 is the base frame 7. It is located slightly behind the center in side view. The rear end of the guide rail 16 is fixed to a support piece 38 attached in a hanging manner from the upper frame 5.

  The pair of guide rails 16 are arranged so as to face in the same direction as the upper frame 5, in other words, in the front-rear direction. Two guide rails 16 are provided, one for each of the left column frame 9 and the right column frame 9 in total. The front and rear end surfaces of the set of guide rails 16 are all open, and a long pushing member 30 can be inserted from the opened place.

As shown in FIGS. 1 to 4, the pushing member 30 is a rod-like member that is elongated in the front-rear direction and swings the footrest portion 4 upward.
The extrusion member 30 is formed in a size that can be fitted into the opening of the guide rail 16 described above, and is formed in a square shape using synthetic resin, metal, or the like. The size of the pushing member 30 is slightly smaller than the inner dimension of the guide rail 16, and the pushing member 30 can freely slide in the guide rail 16.

  The pushing members 30 are inserted into the pair of left and right guide rails 16 respectively, and the two pushing members 30 are connected by a connecting member 22 formed across the width direction. Therefore, the two right and left push-out members 30 slide together. Further, lubricating oil such as grease may be applied to the inner peripheral surface of the guide rail 16 so that the pushing member 30 can be smoothly moved with respect to the guide rail 16.

Further, a driving member 31 that moves in the front-rear direction is attached to the pushing member 30 on a surface that is the rear part of the pushing member 30 and faces the center side in the width direction.
The drive member 31 enables the above-described push member 30 to be pushed forward. The drive member 31 plays a role of a conversion member that converts a swinging motion generated by driving the reclining mechanism 6 into a linear motion along the front-rear direction of the pushing member 30.

The drive member 31 is plate-shaped and is formed in a substantially rectangular shape that is long in the vertical direction. The upper and lower ends of the drive member 31 are formed in a round shape. The drive member 31 is attached to the rear part of the left and right push members 30.
A long groove 32 that is long in the vertical direction is formed in the center of the drive member 31. In the long groove 32, the upper part of the link member 18 provided below the driving member 31 is slidably fitted in the long groove 32.

As shown in FIGS. 1 and 3, the link member 18 is a long strip-like member provided on the left and right sides of the base frame 7 (seat portion 2), and the upper end side (upper part) of the link member 18. ) Is slidably connected to the long groove 32 of the drive member 31 described above, and is movable in the vertical direction.
Further, the lower end side (lower part) of the link member 18 is located slightly rearward of the middle part in the front-rear direction of the lower frame 8 (lower side of the base frame 7), and is connected to the left-right axis by the connecting pin 21 facing the left-right direction It is pivotally attached around the center.

  As shown in FIG. 4 and the like, one link member 18 is provided on each of the left and right sides corresponding to the left drive member 31 (extrusion member 30) and the right drive member 31 (extrusion member 30). . As shown in FIGS. 3 and 4, the left and right link members 18 are connected by a connecting member 22 formed of a square bar, and the connecting member 22 is the center in the longitudinal direction of the link member 18. It is arranged slightly below the part. As shown in FIGS. 3A to 3C, the left and right link members 18 can swing from a position facing diagonally rearward to a position facing diagonally forward with respect to the front-rear direction of the base frame 7. ing.

Further, an interlocking link member 19 is provided between the middle part in the longitudinal direction of the link member 18 and the lower part of the backrest frame 15 to enable the backrest 3 to tilt (recliner operation) by swinging of the link member 18. ing.
As shown in FIGS. 1 to 4, the interlocking link member 19 is a long plate member that interlocks the swinging of the footrest part 4 and the tilting of the backrest part 3. The interlocking link member 19 has a front end side (one end) connected to a midway portion in the longitudinal direction of the link member 18 so as to be rotatable about a horizontal axis, and a rear end side (the other end) of the interlocking link member 19. The lower part of the backrest frame 15 is connected to the lower part of the backrest frame 15 so as to be rotatable about a lateral axis.

Specifically, the interlocking link member 19 includes a first interlocking link member 34 that is connected to the middle part of the link member 18 in the longitudinal direction, and a second interlocking link member that is connected to the lower portion of the backrest frame 15. 35.
As shown in FIGS. 1 to 4, the front end side of the first interlocking link member 34 connects the link member 18 in the middle of the link member 18, in other words, viewed from the swing axis of the link member 18. It is connected to the inside of the diameter of the connecting member 22 so as to be rotatable about the left and right axis. On the other hand, the rear end side of the first interlocking link member 34 is connected to the lower end side of the second interlocking link member 35 so as to be rotatable about the left and right axis. The upper end side of the second interlocking link member 35 is rotatable about the axis of the first swing shaft portion 11.

The first interlocking link member 34 and the second interlocking link member 35 are provided on the left and right sides respectively corresponding to the left drive member 31 (extrusion member 30) and the right drive member 31 (extrusion member 30). It has been.
As shown in FIGS. 3 and 4, the left and right second interlocking link members 35 are connected by an interlocking member 23 formed of a cylindrical bar, and the interlocking member 23 is a second interlocking link member. It is arranged on the lower side in the longitudinal direction of 35 (position about 1/3 from below). The central part of the interlocking member 23 in the left-right direction and the lower part of the backrest frame 15 are connected. As the second interlocking link member 35, that is, the interlocking member 23 moves back and forth, the backrest frame 15 moves to the first swinging shaft portion 11. It can swing around.

  With the configuration described above, the rear end side of the first interlocking link member 34 moves in the front-rear direction as the link member 18 is swung in the front-rear direction. Following the movement of the first interlocking link member 34, the lower end side of the second interlocking link member 35 is also moved in the front-rear direction. Further, when the lower end side of the second interlocking link member 35 moves, the lower portion of the backrest frame 15 swings in the rear front direction (around the first swing shaft portion 11), and the backrest portion 3 moves in the rear front direction. You can recline.

In the case of this embodiment, the actuator 14 is provided inside the base frame 7 as a drive source for swinging the backrest frame 15 and the link member 18 via the interlocking link member 19 described above.
The actuator 14 is a direct acting actuator that expands and contracts when driven by a motor, and employs a screw mechanism. The interlocking link member 19 is pushed and pulled in the front-rear direction by the reciprocating linear motion generated by the linear actuator.

  The actuator 14 is provided between the middle part of the interlocking link member 19 in the vertical direction and the upper part of the basic frame 7. Specifically, the actuator 14 has a front end portion (front end side) coupled to a substantially central portion in the left-right direction of a square-shaped horizontal member 24 provided on the upper frame 5 so as to be rotatable about a left-right axis, The rear end (base end side) is connected to the substantially central portion in the left-right direction of the interlocking member 23 of the second interlocking link member 35 so as to be rotatable about the left-right axis.

  If it is this structure, when the actuator 14 shrink | contracts, the 2nd interlocking | linkage link member 35 lower end side will move forward, and the backrest frame 15 will recline back. Further, the first interlocking link member 34 moves forward by the rotation of the second interlocking link member 35, and the connecting link member 18 is swung forward. The swing of the connecting link member 18 is converted from a swinging motion to a linear motion by the drive member 31, and the connecting link member 18 pushes the pushing member 30.

Then, the pushing member 30 is pushed out so as to protrude forward, and the pushing member 30 swings the footrest support frame 13 upward via the swing switching member 33 attached to the footrest support frame 13.
The swing switching member 33 is a member provided in the reclining mechanism 6, and serves to switch between a linked state in which the footrest portion 4 is interlocked following the reclining of the backrest portion 3 and a non-linked state in which only the backrest portion 3 is reclining. It is a member to bear. That is, the swing switching member 33 includes an engagement state in which the front end portion 43 of the push member and the swing switching member 33 are in contact, and an engagement state in which the upper edge surface 44 of the push member and the swing switching member 33 are in sliding contact. By making the variable, the reclining mechanism 6 can switch between the interlocking state and the non-interlocking state.

  As shown in FIGS. 1 and 2, the swing switching member 33 is a square member attached so as to protrude outward in the width direction from the left and right frames 36 and 37 constituting the footrest support frame 13. One place is provided in each of the left and right frame bodies 36 and 37. The swing switching member 33 has a length of about １ ／ of the left and right frames constituting the footrest support frame 13 and is attached to the middle of the left and right frames 36 and 37 in the vertical direction. . The swing switching member 33 protrudes so as to be slightly wider than the left and right thickness of the pushing member 30. The swing switching member 33 is arranged so as to face the pushing member 30 provided in the base frame 7 in the front-rear direction.

FIGS. 6A and 7 show the swing switching member 33 attached to the left frame 36 of the footrest support frame 13 having a hanging shape in a side view. As is clear from this figure, the swing switching member 33 faces the front edge surface 39 facing forward, the rear edge surface 40 facing the base frame 7 side (rear side), and the floor surface F. The lower edge surface 41 is provided.
The front edge surface 39 of the swing switching member is substantially flush with the front side surface of the left frame 36, and the rear edge surface 40 of the swing switching member is substantially flush with the rear side surface of the left frame 36. It is said to be one. Further, as shown in FIG. 6 (a), the lower edge surface 41 of the swing switching member has a shape (inclined edge surface) that is notched toward the front lower side in a side view, and the front edge surface of the swing switching member. The lower end of 41 and the lower end of the rear edge surface 40 of the swing switching member are connected.

The rear edge surface 40 of the swing switching member is provided at a position where it abuts against the front end portion 43 of the pushing member, and can be pushed out by the front end portion 43 of the pushing member. Further, the lower edge surface 41 of the swing switching member cut in an inclined shape is in sliding contact with the upper edge surface 44 of the pushing member pushed forward.
By the way, with respect to the lower edge surface 41 formed on the swing switching member 33, a thin projecting wall 42 that protrudes along the longitudinal direction of the swing switching member 33 is provided at the outer end in the width direction of the lower edge surface 41. It has been. The protruding wall 42 plays a role of preventing the swing switching member 33 from coming off the push member 30 when the lower edge surface 41 of the swing switch member is in sliding contact with the upper edge surface 44 of the push member.

Since the swing switching member 33 attached to the frame 37 on the right side of the footrest support frame 13 having a hanging shape has the same configuration, the description thereof is omitted.
According to the configuration of the reclining mechanism 6 described above, as shown in FIGS. 6A to 6C, the rear edge surface 40 of the swing switching member and the front end portion 43 of the pushing member are in contact with each other. During this time, the footrest support frame 13 swings following the tilting of the backrest frame 15. While the lower edge surface 41 of the swing switching member is in sliding contact with the upper edge surface 44 of the pushing member, the pushing by the pushing member 30 is not transmitted to the footrest support frame 13 and only the back frame 15 tilts. It becomes a state.

  When the reclining mechanism 6 including the guide rail 16, the pushing member 30, the swing switching member 33, the driving member 31, the link member 18, and the interlocking link member 19 is used, the footrest portion 4 is matched with the reclining of the backrest portion 3. The swinging of the backrest part 3 and the swinging of the footrest part 4 can be switched to non-interlocking (only the reclining operation of the backrest part 3).

And it becomes possible to change the attitude | position of the chair type massage machine 1 into three attitude | positions of a standing posture, a midway posture, and a tilting posture by switching the above-mentioned interlocking state and a non-interlocking state.
Next, with reference to FIG. 5 to FIG. 9, three postures realized by the reclining mechanism 6 described above, in other words, operations of the chair type massage machine 1 will be described.
As shown in FIGS. 5A and 7, the chair-type massage machine 1 at the start of use is erected so that the backrest portion 3 faces substantially upward, and the footrest portion 4 is in a suspended state. This posture is called a standing posture.

  In this standing posture, the link member 18 is in a position where the longitudinal direction is directed obliquely upward upward. Thus, when the link member 18 is greatly tilted (swinged) obliquely rearward, the upper end side is located farthest away from the lower end side of the link member 18, and the drive member 31 is located at the rear end, that is, the rearmost end of the base frame 7 further than the rear portion of the guide rail 16. Further, the upper end side of the link member 18 is located on the lowermost side of the long groove 32 of the drive member 31. In the standing posture, the driving member 31 attached to the pushing member 30 is positioned so as to overlap with the rear column frame 9 in a side view.

  On the other hand, the first interlocking link member 34 connected to the middle part of the link member 18 is greatly tilted (swinged) rearward than the tilting of the link member 18, and the rear end side of the first interlocking link member 34 is The height is substantially the same as the upper end side of the link member 18. The second interlocking link member 35 connected to the rear end side of the first interlocking link member 34 is located further rearward than the rear end of the base frame 7. Then, the lower end side of the backrest frame 15 connected to the interlocking member 23 of the second interlocking link member 35 is located behind the base frame 7, and the lower end side is located behind the first swinging shaft portion 11 by the amount located rearward. The posture is as if the backrest part 3 of the back stood up toward the front. At this time, the front end portion 43 of the pushing member is in contact with the rear edge surface 40 of the swing switching member.

In the chair type massage machine 1 in the standing posture described above, when the electric motor provided in the actuator 14 is driven to rotate in the normal rotation direction, the actuator 14 contracts and shifts to the midway posture.
The contracted actuator 14 pulls the lower end side of the second interlocking link member 35 connected to the rear side of the actuator 14 forward, and reclines the backrest portion 3 rearward in accordance with the moving movement.

  Further, when the first interlocking link member 34 connected to the lower end side of the second interlocking link member 35 moves forward, the link member 18 swings forward. When the link member 18 swings forward, the drive member 31 connected to the upper end side of the link member 18 slides forward, and the pushing member 30 moves forward by the slide of the drive member 31. At this time, the upper part of the link member 18 slides upward from the lower side of the long groove 32 of the drive member 31.

If it does in this way, it will come to push out the footrest part 4 while the front-end part 43 of an extrusion member contact | abuts to the rear edge surface 40 of a rocking | swiveling switching member, and tilting of the backrest part 3 and rocking | fluctuation of the footrest part 4 interlock | cooperate. It becomes an interlocking state, and the posture of the chair type massage machine 1 changes from the standing posture to the midway posture.
Specifically, as shown in FIG. 5B and FIG. 8, the midway posture is such that the footrest portion 4 is fixed from the interlocking state in which the footrest portion 4 swings following the tilting of the backrest portion 3. The posture changes to a non-interlocking state in which only tilting is performed. That is, in the midway posture, the backrest portion 3 has an elevation angle of, for example, 45 ° with respect to the horizontal plane, and the user takes a posture inclined slightly toward the front upper side. Further, in this midway posture, the footrest portion 4 has an inclination angle at which the user's lower limbs are in a posture in which the user's lower limbs are directed upward in the front side with respect to the support frame 9 on the front side. Then, as shown in FIG. 6 (b), the front end portion 43 of the pushing member provided at the upper position of the above-described foundation frame 7 contacts the rear edge surface 40 of the swing switching member attached to the footrest support frame 15. While in contact, the footrest support frame 15 is swung upward. In the midway posture, the front end portion 43 of the pushing member comes into contact with the connection position between the rear edge surface 40 and the lower edge surface 41 of the swing switching member.

  As shown in FIGS. 5B and 8, in the midway posture, the link member 18 is in a state of swinging forward from the standing posture of FIG. 7, and the link member 18 is from the lower end side to the upper end side. In other words, the upper end side of the link member 18 is substantially vertically aligned with the lower end side of the link member 18. The drive member 31 connected to the upper end side of the link member 18 has moved to the rear part of the guide rail 16. At this time, the upper end side of the link member 18 slides upward from the lower side of the long groove 32 of the drive member 31 and comes to be positioned on the uppermost side of the long groove 32. Therefore, in this state, the link member 18 and the pushing member 30 are substantially orthogonal in a side view, and the upper end side of the link member 18 is at the highest position when viewed from the lower frame body 8.

  On the other hand, the interlocking link member 19 swings forward about the first swinging shaft portion 11 in conjunction with the swinging of the link member 18. Specifically, the first interlocking link member 34 is moved forward by the swinging of the link member 18. At this time, the first interlocking link member 34 comes to a position where the rear end side is higher than the front end side, and has an inclined shape that gently rises toward the rear with respect to the horizontal plane. In the second interlocking link member 35, the lower end side of the second interlocking link member 35 swings forward about the first swinging shaft portion 11 in conjunction with the movement of the first interlocking link member 34. Then, the lower end side of the backrest frame 15 connected to the interlocking member 23 of the second interlocking link member 35 moves forward, and the backrest portion 3 above the first swinging shaft portion 11 falls backward by the amount of the lower end side movement. The posture becomes like that.

In the chair type massage machine 1 in the midway posture, the actuator 14 is further contracted. Then, the contracted actuator 14 moves the lower end side of the second interlocking link member 35 connected to the rear side of the actuator 14 forward, and reclines the backrest portion 3 backward in accordance with the moving motion.
At this time, when the first interlocking link member 34 moves forward, the link member 18 swings forward. When the link member 18 swings forward, the drive member 31 connected to the upper end side of the link member 18 slides forward. As shown in FIG. 5C, the pushing member 30 is moved forward by the slide of the driving member 31. At this time, the upper end side of the link member 18 moves to the lower side of the long groove 32 of the drive member 31.

At this time, the upper edge surface 44 of the pushing member and the lower edge surface 41 of the swing switching member slide, and the backrest portion 3 reclines, but the footrest portion 4 shifts to a fixed non-interlocking state. Will be.
Specifically, as shown in FIGS. 5C and 9, the tilted posture is such that the backrest 3 is further tilted than the midway posture, and the user can hold the user in a posture in which the upper body is almost in a supine position. ing. That is, in the tilted posture, the backrest 3 has an elevation angle of, for example, about 30 ° with respect to the horizontal plane, and the user takes a posture of lying down (facing up).

  Further, in this inclined posture, the footrest part 4 is fixed in a state of jumping upward, and is inclined, for example, by 45 ° with respect to the front column frame 9. At this time, as shown in FIG. 6C, the upper edge surface 44 of the pushing member pushed forward is in sliding contact with the lower edge surface 41 of the swing switching member. In this case, since the front end portion 43 of the pushing member does not press the rear edge surface 40 of the swing switching member, the footrest portion 4 does not jump further upward than the inclined state in the midway posture, and the backrest. The position is fixed without interlocking with the rear reclining of the portion 3.

The link member 18 is in a position where the longitudinal direction is directed obliquely downward to the lower side, in other words, the upper end side of the link member 18 is positioned obliquely forward with respect to the lower end side of the link member 18.
Thus, when the link member 18 is largely tilted (swinged) obliquely forward, the upper end side of the link member 18 is positioned farthest forward compared to the lower end side of the link member 18. Yes. The drive member 31 is positioned substantially in the middle of the guide rail 16, and the upper end side of the link member 18 is positioned again below the long groove 32 formed in the drive member 31. Therefore, in the state shown in FIG. 9, the driving member 31 attached to the pushing member 30 is positioned below the horizontal member 24 in a side view.

On the other hand, the first interlocking link member 34 connected to the midway part of the link member 18 has moved further forward than the position in the midway posture, and the rear end side of the first interlocking link member 34 is the first interlocking link. It is a lower position higher than the front end side of the member 34, and becomes an inclined shape that rises toward the rear with respect to the horizontal plane.
The second interlocking link member 35 connected to the rear end side of the first interlocking link member 34 is tilted forward from the rear column frame 9 in a side view by the movement of the first interlocking link member 34. . Then, the lower end side of the backrest frame 15 connected to the interlocking member 23 of the second interlocking link member 35 moves forward, and the backrest portion 3 above the first swinging shaft portion 11 faces rearward by the amount of movement of the lower end side. The posture becomes like falling down.

  When the reclining of the backrest 3 is returned (for example, when returning from the state of FIG. 5C to the state of FIG. 5A), the actuator 14 is extended to move the interlocking link member 19 backward. . When the interlocking link member 19 is moved rearward, the first interlocking link member 34 swings rearward, the drive member 31 moves rearward of the base frame 7, and the pushing member 30 is accommodated in the guide rail 26. become. If it does so, the backrest part 3 and the footrest part 4 will transfer to a standing posture through a midway posture.

That is, in the chair type massage machine 1 of the present embodiment, the movement of the backrest part 3 and the footrest part 4 (reclining operation) is reversible, and by retracting the actuator 14, the standing posture → the midway posture → the inclined posture. By changing and extending the actuator 14, each member moves in the opposite direction, and shifts from an inclined posture to a midway posture to a standing posture.
As described above, in the chair type massage machine 1 of the present embodiment, the footrest portion 4 and the backrest portion 3 can be swung in various postures while having a simple structure, and can be used by a user during massage. A feeling of relaxation can be given.
[Second Embodiment]
Next, the chair type massage machine 1 of 2nd Embodiment is demonstrated.

  As shown in FIGS. 10-13, the chair type massage machine 1 of 2nd Embodiment changes the engagement state (connection state) of the rocking | swiveling switching member 33 with respect to the extrusion member 30 similarly to 1st Embodiment. And a reclining mechanism 6 that switches between an interlocking state in which the footrest part 4 is swung in conjunction with the backrest part 3 and a non-interlocking state in which only the backrest part 3 is swung while the footrest part 4 is fixed. It has become. In the second embodiment, the pushing member 30 is not provided with the driving member 31 and the link member 18 as in the first embodiment, and the pushing member 30 is moved back and forth by the actuator 14 without using these members. It is different from the first embodiment in that it pushes and pulls in the direction and directly transmits the back-and-forth movement of the pushing member 30 to the backrest part 3 and the footrest part 4 to tilt these members.

  Specifically, the reclining mechanism 6 of the second embodiment includes a guide rail 16 provided along the front-rear direction with respect to the base frame 7, and a front-rear direction inserted along the guide rail 16 and along the guide rail 16. A long extruding member 30 that can be moved to the front, a moving means 50 that moves the extruding member 30 in the front-rear direction along the guide rail 16, and a midway part of the footrest part 4 (in other words, the base frame 7 and the footrest part) 4 and a swing switching member 33 provided in a swing link mechanism provided in between, and details will be described later. The swing switching member 33 has a function of switching the movement of the footrest portion 4 between the interlocked state and the non-interlocked state described above by changing the engaged state (connected state) with respect to the pushing member 30.

Next, the guide rail 16, the pushing member 30, the moving means 50, and the rocking | swiveling switching member 33 which comprise the chair type massage machine 1 of 2nd Embodiment are demonstrated in detail.
As shown in FIGS. 10-13, the guide rail 16 provided in the chair type massage machine 1 of 2nd Embodiment is a member formed in the shape of a long rectangular tube similarly to 1st Embodiment, and is hollow. The long pushing member 30 can be accommodated in the longitudinal direction (laying direction) so as to be movable. A pair of guide rails 16 are provided in the left-right direction of the foundation frame 7. Each guide rail 16 is not only opened (opened) toward the inner side in the left-right direction, but is also opened toward the outer side in the left-right direction, unlike the first embodiment.

That is, an inner opening 51 that opens toward the center in the left-right direction is formed on the inner side surface of the pair of left and right guide rails 16. The inner opening 51 is formed in an elongated shape along the front-rear direction, and the left pushing member 30 and the right pushing member 30 are connected in the left-right direction by the connecting member 22 through the inner opening 51. ing.
Moreover, the outer side opening part 53 opened toward the outer side of the left-right direction is formed in the outer side surface in the pair of left and right guide rails 16. Similarly to the inner opening 51, the outer opening 53 is also formed in a long hole shape along the front-rear direction. A link attachment piece 54 is inserted into the outer opening 53, and the link attachment piece 54 is guided in the front-rear direction along the inside of the outer opening 53. The link attachment piece 54 is attached to the outer surface of the extrusion member 30 described later, and protrudes to the outside of the outer opening 53 through the outer opening 53. A first interlocking link member 55 of an interlocking link mechanism for swinging the backrest portion 3 is connected to the tip end (outer side surface in the left-right direction) of the link mounting piece 54 protruding outside the outer opening 53. .

  That is, when the push member 30 moves in the front-rear direction, the link attachment piece 54 attached to the push member 30 also moves in the front-rear direction within the outer opening 53, and the rear end of the link attachment piece 54 is pivotally supported by the link attachment piece 54, which will be described later. The interlocking link mechanism (first interlocking link member 55) swings and the tilting state of the backrest 3 changes. This interlocking link mechanism will be described in detail later.

  Similar to the first embodiment, the pushing member 30 is a square member housed in the guide rail 16 described above, and is formed using synthetic resin, metal, or the like. Similarly to the first embodiment, the pushing member 30 can slide freely inside the guide rail 16 and is provided with a pair of left and right pushing members 30 between the pair of left and right pushing members 30. Is built. And this connection member 22 comprises the moving means 50 which moves the left side extrusion member 30 and the right side extrusion member 30 integrally in the front-back direction.

The moving means 50 moves the left and right pushing members 30 integrally in the front-rear direction, and moves the connecting member 22 in the front-rear direction with respect to the connecting member 22 that connects the left and right pushing members 30 to each other and the base frame 7. And an actuator 14 to be operated.
The connecting member 22 is a member formed in a substantially I-shape when viewed from above, and is a rod-shaped member spanned in the left-right direction, and a short length provided along the front-rear direction at the left and right ends of the rod-shaped member. It is comprised with the plate-shaped member. The connecting member 22 integrally connects the left and right extruded members 30 by fastening plate-like members at both left and right ends to the extruded member 30 with two bolts 52. In addition, the actuator 14 (the upper end thereof) is coupled to the above-described midway side of the coupling member 22 in the left-right direction.

  The actuator 14 moves the left and right pushing members 30 back and forth integrally (push and pull) by moving the connecting member 22 close to and away from the base frame 7. The actuator 14 is configured to expand and contract the rod using, for example, an electric motor, and is configured to move the left and right push members 30 along the front-rear direction by expanding and contracting the rod. In the illustrated example, the base end side (one end side) of the actuator 14 is connected and fixed to the lower frame 8 of the base frame 7, and the tip end side (the other end side) of the rod that expands and contracts with respect to the base end side is shown. When the rod is extended and contracted, the connecting member 22 and the left and right pushing members 30 move back and forth with respect to the base frame 7.

  As shown in FIG. 14, the swing switching member 33 is a member provided in the reclining mechanism 6, and the interlocked state in which the footrest part 4 is interlocked following the reclining of the backrest part 3 and the footrest part 4 is fixed. It is a member that plays a role of switching the non-interlocking state in which only the backrest 3 is reclining. That is, the swing switching member 33 is in an engaged state where the front end portion 43 of the push member 30 and the rear edge surface 40 of the swing switch member 33 are in contact, and the upper edge surface 44 of the push member 30 and the swing switch member 33. By variably having a sliding contact state in which the lower edge surface 41 is in sliding contact, the reclining mechanism 6 can be switched between the interlocking state and the non-interlocking state described above.

  That is, the footrest portion 4 is provided with a swing link mechanism that swings the footrest portion 4 about the left-right direction axis with respect to the base frame 7. In the reclining mechanism 6, when the swing switching member 33 of the swing link mechanism is in the engaged state, the swing link mechanism swings by the forward movement of the pushing member 30, and the footrest portion 4 swings. When the swing switching member 33 is in the sliding contact state, the swing link mechanism does not swing even if the pusher member 30 moves forward, and the posture of the footrest portion 4 is held constant.

  Specifically, as shown in FIG. 14 and the like, the swing switching member 33 is a short bar-like member provided in front of the pushing member 30, and is disposed in an inclined manner toward the front lower side. The rear edge surface 40 of the swing switching member 33 is inclined forward and downward, but the lower edge surface 41 is formed horizontally so as to face the front-rear direction. Therefore, while the front end portion 43 of the pushing member 30 moved forward is in sliding contact with the rear edge surface 40 of the swing switching member 33, the swing switching member 33 receives a force in the flip-up direction. However, if the front end portion 43 of the pushing member 30 comes into sliding contact with the lower edge surface 41 of the swing switching member 33, the swing switching member 33 does not move up and down even if the push member 30 moves forward, and the footrest The upward swing of the part 4 is restricted, and the footrest part 4 is held in a constant posture.

  The swing link mechanism to which the swing switching member 33 is attached is for swinging the footrest portion 4 about the left-right axis with respect to the base frame 7 using a parallel link mechanism. Specifically, the swing link mechanism is a combination of four link members from the first link member 61 to the fourth link member 64. Further, between the second link member 62 and the third link member 63, a pivot member 65 that pivots both the link members 62, 63 around the left-right axis is provided.

  The first link member 61 is a rod-shaped member that connects the upper portion of the base frame 7 and the second link member 62. Specifically, a link attachment plate 66 for attaching the first link member 61 and the third link member 63 is provided on the upper portion of the basic frame 7 (upper frame body 5). The link mounting plate 66 is a plate-like member that is triangular when viewed from the side in the left-right direction, and the first link member 61 and the third link member 63 are located on the side (oblique side) facing the front lower side. It is connected so as to be swingable about an axis facing in the left-right direction.

  Specifically, the upper end of the first link member 61 is pivotally supported on the rear side of the side (oblique side) facing the front lower side among the sides of the link mounting plate 66 having a triangular shape, and the third link member 63. The upper end of this is near the front of this side and is pivotally supported in front of the first link member 61. The first link member 61 is attached so as to extend in an inclined manner from the pivot point with the link attachment plate 66 toward the front lower side. The swing switching member 33 described above is attached to the middle of the first link member 61 in the longitudinal direction and to the outside. Further, the rear end of the second link member 62 is connected to the front end of the first link member 61 so as to be swingable about an axis directed in the left-right direction.

The second link member 62 is a member that connects the first link member 61 and the footrest portion 4, and extends in an inclined manner from the pivot point with the first link member 61 toward the upper front side. A support plate 67 of the footrest portion 4 is coupled to the front end of the second link member 62 so as to be swingable about an axis facing the left-right direction.
The height of the pivot point of the second link member 62 with respect to the support plate 67 of the footrest portion 4 in other words, the height of the pivot point on the front end side of the second link member 62 is determined by the action of the pivot member 65 described later. A structure that maintains substantially the same height as the pivot point on the rear end side and swings while the footrest part 4 moves back and forth without changing the height even when the swing link mechanism is swung. It has become.

  The third link member 63 is a rod-shaped member that connects the link attachment plate 66 and the fourth link member 64. The rear end of the third link member 63 is pivotally supported by the front edge of the link mounting plate 66 and is rotatable about an axis that faces in the left-right direction with respect to the link mounting plate 66. The third link member 63 extends obliquely from the pivot point with the link attachment plate 66 toward the lower front side, and the second link member 62 described above intersects in the middle in the longitudinal direction. The pivot member 65 described above is provided at the intersection of the third link member 63 and the second link member 62. The front end of the third link member 63 is substantially the same height as the front end of the first link member 61 and is disposed further forward of the front end of the first link member 61. The rear end of the fourth link member 64 is coupled to the front end of the third link member 63 so as to be swingable about an axis that faces in the left-right direction.

  The fourth link member 64 is a member that connects the third link member 63 and the footrest portion 4, and extends in an inclined manner from the pivot point with the third link member 63 toward the front upper side. A support plate 67 of the footrest portion 4 is coupled to the front end of the fourth link member 64 so as to be swingable about an axis facing the left-right direction. The height of the pivot point of the fourth link member 64 relative to the support plate 67 is substantially the same as the pivot point of the first link member 61 and the third link member 63 as in the case of the second link member 62. .

  The pivot member 65 is configured to connect the midway side in the longitudinal direction of the second link member 62 and the midway side in the longitudinal direction of the third link member 63 so as to be rotatable about an axis directed in the left-right direction. In other words, the pivot member 65 regulates the height of the pivot point of the third link member 63 with respect to the second link member 62, so that the footrest part 4 has a height when the swing link mechanism is operated. It swings while moving back and forth without changing.

In contrast to the swing link mechanism described above, the interlocking link mechanism 33 tilts the backrest 3 around the axis that faces in the left-right direction in conjunction with the back-and-forth movement of the pushing member 30. This interlocking link mechanism is configured by combining two members, a first interlocking link member 55 and a second interlocking link member 56.
Specifically, the interlocking link mechanism is a second interlocking link member that is connected to a fixed piece 57 provided on the base frame 7 (the upper frame 5 thereof) so as to be rotatable about an axis that faces in the left-right direction. 56, and a first interlocking link member 55 that connects the second interlocking link member 56 and the extrusion member 30. In addition, the rocking | fluctuation shaft which rock | fluctuates this 2nd interlocking link member 56 with respect to the fixed piece 57 is made into the 1st rocking | fluctuation shaft part 11 in the chair type massage machine 1 of 2nd Embodiment.

  The first interlocking link member 55 is a long bar-like member that connects between the link attachment piece 54 attached to the outer surface of the extrusion member 30 and the upper portion of the second interlocking link member 56. One end side (the upper end side in FIG. 13A) of the first interlocking link member 55 is connected to the upper part of the second interlocking link member 56 so as to be rotatable around an axis facing the left-right direction. Further, the other end side (the lower end side in FIG. 13A) of the first interlocking link member 55 is connected to the link mounting piece 54 so as to be rotatable about an axis facing the left-right direction.

  For example, when the pushing member 30 moves to the front side along the guide rail 16, the lower end of the first interlocking link member 55 attached to the link attaching piece 54 is positioned further forward than the upper end. The posture of the one interlocking link member 55 changes from an upright state to a tilted state that tilts forward and downward. Further, when the pushing member 30 moves rearward along the guide rail 16, the link attachment piece 54 also moves rearward, so that the lower end and the upper end of the first interlocking link member 55 are aligned vertically. . As a result, the first interlocking link member 55 rises up and down.

  The second interlocking link member 56 is a substantially L-shaped plate member that is bent downward on the middle side in the longitudinal direction. The second interlocking link member 56 includes a fixed piece 57 provided on the base frame 7 and the first interlocking link member 55. Are connected. The upper part of the second interlocking link member 56 positioned above the bent midway side is attached substantially in parallel with the backrest frame 15, and the upper end of the upper part is an axis on which the first interlocking link member 55 faces in the left-right direction. It is connected so that it can rotate freely. The lower part of the second interlocking link member 56 positioned below the bent midway side is attached substantially parallel to the upper frame body 5 of the base frame 7, and the lower end of the lower part is fixed to the fixed piece 57. In this way, it is connected so as to be rotatable around an axis facing in the left-right direction.

  In addition, an elongated connection hole is formed in a penetrating manner on the upper surface of the second interlocking link member 56. Two connection protrusions 59 provided on the backrest frame 15 are inserted into the connection hole. These two connection protrusions 59 are arranged side by side along the extending direction of the backrest frame 15, and are provided so as to protrude outward in the right direction from the outer surface of the backrest frame 15. Further, the interval between the two connecting projections 59 is narrower than the opening width of the elongated hole-shaped connecting hole, and the two connecting projections 59 are inserted in the connecting hole along the laying direction of the connecting hole ( It is movable (along the extension direction of the back frame 15). If the movement of the second interlocking link member 56 is allowed with respect to the backrest frame 15 in this way, the second interlocking link member 56 and the backrest frame 15 can swing while maintaining a certain degree of freedom. The link mechanism can be smoothly swung.

  In the interlocking link mechanism that combines the first interlocking link member 55 and the second interlocking link member 56 described above, when the pushing member 30 moves to the front side, the position of the lower end of the first interlocking link member 55 is the position of the upper end. The first interlocking link member 55 is tilted so that the posture of the first interlocking link member 55 falls backward as much as the displacement occurs. Then, the position of the upper end of the second interlocking link member 56 connected to the upper end of the first interlocking link member 55 is lowered, and as a result, the second interlocking link member 55 is synchronized with the backward swing of the first interlocking link member 55. 56 also tilts backward. And if the 2nd interlocking link member 56 inclines back, the backrest part 3 will also recline toward back.

  On the other hand, when the pushing member 30 moves to the rear side, the position of the upper end and the position of the lower end of the first interlocking link member 55 are arranged in the vertical direction, and as described above, the first interlocking link member 55 is in the vertical direction. Change to a standing posture. Then, the position of the upper end of the second interlocking link member 56 connected to the upper end of the first interlocking link member 55 swings forward. As a result, when the second interlocking link member 56 is tilted forward, the backrest portion 3 is tilted so as to rise up toward the front.

That is, the first interlocking link member 55 and the second interlocking link member 56 are moved so as to always interlock with the longitudinal movement of the pushing member 30, and the backrest part 3 is reclined by always interlocking with the longitudinal movement of the pushing member 30. To do.
Next, using FIG. 11 and FIG. 13, three postures realized by the above-described reclining mechanism 6, in other words, the reclining operation of the chair type massage machine 1 will be described.

As shown in FIGS. 11 (a) and 13 (a), the chair type massage machine 1 at the start of use stands up so that the backrest part 3 faces substantially upward, and the footrest part 4 is in a suspended state. . This posture is called a standing posture as in the first embodiment.
In this standing posture, the pushing member 30 is in a position on the rear end side in the front-rear direction of the guide rail 16. And the actuator 14 which moves the right and left pushing member 30 via the connection member 22 is in the most degenerated state. Further, since the pushing member 30 described above is on the rear end side of the guide rail 16, the position where the front end portion 43 of the pushing member 30 contacts the swing switching member 33 is also rearward (the same as the link mounting plate 66 in the front-rear direction). Position).

  On the other hand, each of the link members constituting the swing link mechanism is arranged so as to have a large depression angle with respect to the horizontal direction, in other words, in a substantially vertical direction, and the footrest portion 4 is the most basic frame 7. It arrange | positions in the position close | similar to (seat part 2). And the footrest part 4 at this time is a swinging posture in which the part into which the lower limb is inserted is directed to the front (front).

Further, since the pushing member 30 is located at the rear end side in the front-rear direction of the guide rail 16, the link mounting piece 66 is also located at the rear end side of the guide rail 16, and the first interlocking link member 61 is vertically The posture stands up along the direction. Therefore, the backrest part 3 is in a state of swinging forward, in other words, standing upright.
In the chair type massage machine 1 in the standing posture described above, when the actuator 14 is extended, the reclining mechanism 6 shifts from the standing posture to the midway posture.

  As shown in FIGS. 11 (b) and 13 (b), the footrest portion 4 is fixed from the interlocking state in which the footrest portion 4 swings upward following the rearward tilt of the backrest portion 3 as shown in FIGS. This is the posture when switching to the non-interlocking state in which only the backward tilting of the backrest 3 is performed. That is, in the midway posture, the backrest portion 3 has an elevation angle of, for example, 45 ° with respect to the horizontal plane, and the user takes a posture inclined slightly toward the front upper side. Further, in this midway posture, the footrest portion 4 has an inclination angle at which the user's lower limbs are in a posture in which the user's lower limbs are directed upward in the front side with respect to the support frame 9 on the front side.

  In the midway posture, the tip end of the actuator 14 moves forward relative to the base end side fixed to the base frame 7, and the connecting member 22 moves forward from the position of the standing posture as the actuator 14 extends. Yes. The pushing member 30 connected to the connecting member 22 protrudes further forward from the front end of the guide rail 16, and contacts the swing switching member 33 further forward than the link mounting plate 66 in the front-rear direction.

Then, the front end portion 43 of the pushing member 30 moves forward while coming into contact with the rear edge surface 40 of the rocking switching member 33, and the rocking switching member 33 is pushed up by the pushing member 30 moving forward, so that the footrest portion 4. Swings upward.
In the swing link mechanism in this state, the first link member 61 to the fourth link member 64 constituting the swing link mechanism are tilted at a smaller elevation angle than in the standing posture, and the footrest portion 4 is slightly separated from the seat portion 2. In other words, it is a slightly advanced position. Moreover, in the footrest part 4 of this midway posture, it can hold | maintain at the same height as the seat part 2 with a user's lower leg horizontal.

In the chair type massage machine 1 in the midway posture described above, when the actuator 14 is further extended, the reclining mechanism 6 shifts from the midway posture to the inclined posture.
As shown in FIGS. 11 (c) and 13 (c), the tilted posture is such that the backrest 3 is further tilted than the midway posture, so that the user can hold the upper body in a substantially supine posture. ing. That is, in the tilted posture, the backrest 3 has an elevation angle of, for example, about 30 ° with respect to the horizontal plane, and the user takes a posture of lying down (facing up).

  In the inclined posture, the distal end of the actuator 14 moves further forward with respect to the base end side fixed to the base frame 7, and the connecting member 22 moves to the vicinity of the front support frame 9 as the actuator 14 extends. doing. At this time, the pushing member 30 connected to the connecting member 22 protrudes forward from the front end of the guide rail 16 and protrudes further forward beyond the swing switching member 33.

  That is, the upper edge surface 44 of the pushing member 30 moves forward while slidingly contacting the lower edge surface 41 of the swing switching member 33. In this case, since the front end portion 43 of the pushing member 30 does not push the rear edge surface 40 of the swing switching member 33, the footrest portion 4 does not jump further upward than the inclined state in the midway posture. The position is fixed without interlocking with the back reclining of the backrest 3. For this reason, in this inclined posture, the footrest portion 4 is fixed in a state of jumping upward, and is inclined, for example, by 45 ° with respect to the front support frame 9. The swing link mechanism maintains the same extended state as in the midway posture, the footrest portion 4 is in a posture that can hold the user's lower limb at the same height as the seat portion, and the reclining mechanism 6 is a backrest portion. Although 3 reclines, it shifts to the non-interlocking state in which the footrest part 4 is fixed.

In the chair-type massage machine 1 of the second embodiment, the movement of the backrest 3 and the footrest 4 (reclining operation) is reversible, and by extending the actuator 14, the standing posture → the midway posture → the inclined posture When the actuator 14 contracts, each member moves in the opposite direction, and shifts from an inclined posture to a midway posture to a standing posture.
As described above, in the chair type massage machine 1 of the second embodiment, the footrest part 4 and the backrest part 3 can be swung in various postures while having a simple structure, and the user during the massage is performed. Can give a relaxed feeling. Moreover, in the chair type massage machine 1 of 2nd Embodiment, since the drive member 31 and the link member 18 which were in 1st Embodiment are not provided, an apparatus structure becomes simple and it costs manufacturing cost. Therefore, it is possible to give the user a good feeling of relaxation.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. In particular, in the embodiment disclosed this time, matters that are not explicitly disclosed, such as operating conditions and operating procedures, various parameters, dimensions, weights, volumes, and the like of a component deviate from a range that is normally performed by those skilled in the art. Instead, values that can be easily assumed by those skilled in the art are employed.

  In the second embodiment described above, the support plate 67 is provided with the footrest rotation shaft portion 68 facing in the left-right direction, and the footrest portion 4 is rotatable about the footrest rotation shaft portion 68 with respect to the support plate 67. It was. And the footrest part 4 has the posture at the time of the massage with the massage surface (the part to insert and massage the lower limbs) upward, and the lower limb placement surface on which the lower limbs are placed (the part formed flat so that the lower limb can be placed ) Can be switched to the lower limb placement posture facing upward. However, the footrest part 4 may be fixed so as not to rotate with respect to the support plate 67 so that the posture of the footrest part 4 is not switched.

  In the second embodiment described above, the swing switching member 33 is provided on the first link member 61, but the link member to which the swing switching member 33 is attached is not limited to the first link member 61. For example, the swing switching member 33 may be attached to the third link member 63, or the swing switching member 33 may be attached to another link member such as the second link member 62 or the fourth link member 64.

DESCRIPTION OF SYMBOLS 1 Chair type massage machine 2 Seat part 3 Backrest part 4 Footrest part 5 Upper frame body 6 Reclining mechanism 7 Base frame 8 Lower frame body 9 Support | pillar frame body 11 1st rocking shaft part 12 2nd rocking shaft part 13 Footrest support frame 14 linear actuator 15 back frame 16 guide rail 18 link member 19 interlocking link member 21 connecting pin 22 connecting member 23 interlocking member 24 horizontal member 30 pushing member 31 driving member (converting member)
32 Long groove 33 Oscillation switching member 34 First interlocking link member 35 Second interlocking link member 36 Frame (left side)
37 Frame (right side)
38 Supporting piece 39 Front edge surface of swing switching member 40 Rear edge surface of swing switching member 41 Lower edge surface of swing switching member 42 Projecting wall 43 Front end portion of pushing member 44 Upper edge surface of pushing member 50 Moving means 51 Inner opening 52 Bolt 53 Outer opening 54 Link attachment piece 55 First interlocking link member 56 Second interlocking link member 57 Fixing piece 59 Connecting projection 61 First link member 62 Second link member 63 Third link member 64 Fourth link Member 65 Pivoting member 66 Link mounting piece 67 Support plate 68 Footrest rotating shaft F Floor

Claims (16)

A seat where the user sits;
A basic frame with the seat on top;
A backrest portion disposed at the rear portion of the seat portion and swingable in the front-rear direction with respect to the base frame;
A footrest portion swingably provided in the front-rear direction on the front surface of the seat portion;
A chair type massage machine provided with a reclining mechanism that swings at least one of the backrest and the footrest,
The reclining mechanism switches between an interlocking state in which the footrest part swings in conjunction with the swinging of the backrest part and an unlinked state in which the swinging position of the footrest part is fixed and only the backrest part swings. A chair type massage machine characterized by being configured to enable. The interlocking state is to swing until the footrest part protrudes forward from a position where the footrest part hangs in conjunction with swinging backward of the backrest part,
In the non-interlocking state, the backrest portion is swung backward while the swing position of the footrest portion is fixed,
The chair type massage machine according to claim 1, wherein the reclining mechanism drives the backrest and the footrest so as to switch from the interlocking state to the non-interlocking state. The interlocking state is interlocked with swinging forward of the backrest part, and interlocking with swinging until the footrest part hangs down from a position protruding forward,
In the non-interlocking state, the backrest portion is swung forward while the swing position of the footrest portion is fixed.
The chair type massage machine according to claim 1, wherein the reclining mechanism drives the backrest and the footrest so as to switch from the non-interlocking state to the interlocking state. The reclining mechanism includes a guide rail disposed along the front-rear direction with respect to the foundation frame;
A long extruded member inserted into the guide rail and movable along the guide rail;
A drive member attached to the rear of the push member and pushing the push member forward;
A long link member connected to the drive member,
The link member has an upper portion attached to the drive member and a lower portion that is swingably connected to the base frame and swings from a position facing diagonally rearward to a position facing diagonally forward relative to the front-rear direction of the base frame. The chair type massage machine according to any one of claims 1 to 3, wherein the chair type massage machine is movable.   5. The chair according to claim 1, wherein the lower portion of the link member is attached to a substantially middle portion in the front-rear direction below the base frame so as to be rotatable about a left-right axis. Type massage machine. The drive member is formed with a long groove in the vertical direction, and the upper part of the link member is slidably fitted into the long groove,
The link member swings, and the upper part of the link member slides in the long groove of the drive member, so that the drive member changes the swing motion of the link member into a linear motion along the front-rear direction of the push-out member. It is comprised so that it may convert, The chair type massage machine in any one of Claims 1-5 characterized by the above-mentioned. Between the longitudinal halfway part of the link member and the lower part of the backrest part, an interlocking link member that enables interlocking of the swinging of the link member and the tilting of the backrest part is provided,
The interlocking link member has one end rotatably connected to a longitudinal middle portion of the link member so as to be rotatable about a lateral axis, and the other end is rotatable to a lower portion of the backrest so as to be rotatable about a lateral axis. It is connected, The chair type massage machine in any one of Claims 1-6 characterized by the above-mentioned.   The chair type massage machine according to any one of claims 1 to 7, further comprising an actuator that swings the backrest and the link member via the interlocking link member. Between the middle part of the interlocking link member and the upper part of the foundation frame, an actuator for pushing and pulling the interlocking link member in the front-rear direction is provided.
One side of the actuator is connected to a substantially central portion of the upper portion of the base frame so as to be rotatable about a left-right axis, and the other side of the actuator is connected to the interlocking link member so as to be rotatable about a left-right axis. Has been
The chair type massage machine according to any one of claims 1 to 8, wherein the actuator is configured to swing the backrest and the link member via the interlocking link member. The upper part of the footrest part is pivotally supported on the front surface of the seat part so as to be swingable around the left and right axis,
The said reclining mechanism is provided in the middle part of a footrest part, and has a rocking | swiveling switching member which switches the motion of the said footrest part with the said interlocking state and a non-interlocking state. Chair type massage machine. The reclining mechanism is configured to be able to switch between an interlocking state and a non-interlocking state of the backrest portion and the footrest portion by making the engagement state of the push member and the swing switching member variable. And
In the interlocking state, the front end portion of the pushing member is an engaging state in contact with the swing switching member,
The chair type massage machine according to any one of claims 1 to 10, wherein in the non-interlocking state, the upper edge portion of the push member is in an engaged state in sliding contact with the swing switching member. The reclining mechanism includes a guide rail disposed along the front-rear direction with respect to the foundation frame;
A long extruded member inserted into the guide rail and movable along the guide rail;
Moving means for moving the pushing member in the front-rear direction along the guide rail;
A rocking switching member that switches the movement of the footrest portion between an interlocking state and a non-interlocking state by changing a connection state with respect to the pushing member;
The chair-type massage machine according to any one of claims 1 to 3, wherein the chair-type massage machine is provided. The reclining mechanism is
In the interlocking state, the front end portion of the pushing member abuts on the swing switching member, thereby swinging the footrest portion,
In the non-interlocking state, the back edge portion is configured to swing rearward while the swing position of the footrest portion is fixed by sliding the upper edge portion of the push member in contact with the swing switching member. The chair type massage machine of Claim 12 characterized by these. The pushing member and the guide rail are respectively provided on the left side and the right side of the seat part,
The moving means includes a connecting member that connects the left and right pushing members, and an actuator that moves the connecting member in the front-rear direction with respect to the base frame.
The chair type massage machine according to claim 12 or 13, wherein one end side of the actuator is fixed to the lower side of the base frame and the other end side is connected to the connecting member. Between the base frame and the footrest part, a swing link mechanism for swinging the footrest part about a left-right axis with respect to the base frame is provided,
The chair-type massage machine according to any one of claims 12 to 14, wherein the swing switching member is provided in the swing link mechanism. The swing link mechanism is
A first link member connected to the upper part of the base frame and extending from the upper part toward the front lower side;
A second link member connected to the front side of the first link member and extending further forward and upward from the front side and connected to the upper portion of the footrest portion;
A third link member connected to the base frame below the first link member and extending from the base frame toward the front lower side;
A fourth link member connected to the front side of the third link member and extending further forward and upward from the front side and connected to a footrest portion further above the second link member; the first link member and the fourth link member; A pivot member that pivotally supports the link member about the left-right axis,
The chair type massage machine according to claim 15, wherein the swing switching member is provided on the first link member or the third link member.