JP2019141146A - Massage machine - Google Patents

Abstract

To reduce a rear space at the time when a backrest is reclined with a simple structure.SOLUTION: A massage machine includes a seat part on which a user sits, a backrest connected to the back part of the seat part, and a base frame for supporting at least the seat part. The base frame includes a first link member which connects the seat part and the base frame, and moves the seat part in a front-back direction with respect to the base frame, and a second link member that connects the backrest and the base frame, and reclines the backrest with respect to the seat part. The seat part is provided with a drive unit for moving the seat part in a front-back direction with respect to the base frame.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a massage machine.

  Conventionally, in a chair type massage machine having a seat, a base frame that supports the seat on the floor, and a foot massage device provided at the front of the seat, the base frame is provided with a seat movement mechanism. The seat portion is provided with a posture changing mechanism, the seat portion moving mechanism has a guide portion and a forward / backward drive portion provided on the base frame, and the posture changing mechanism is a base fulcrum provided on the seat portion. A swing arm and a lower arm member. One end of the intermediate link is rotatably connected to the tip of the swing arm, and the other end of the intermediate link is rotated to the tip of the lower arm member. There has been proposed a chair type massage machine that is freely connected and a foot massage device is connected to a middle part of an intermediate link through a reversal fulcrum (see, for example, Patent Document 1).

Japanese Patent No. 5555647

In the chair type massage machine described in the above-mentioned Patent Document 1, in order to reduce the space behind the reclining portion of the backrest portion, the posture of the seat movement mechanism and the foot massage device for moving the seat portion It employs a complicated mechanism such as a posture changing mechanism that makes the position variable. Therefore, there is a problem that the structure may be complicated.
Therefore, the present invention has been made to solve the above-described problems, and an object thereof is to provide a massage machine that can reduce the space behind when the backrest reclines with a simple structure. To do.

The present invention has a seat portion on which a user is seated, a backrest portion connected to the rear portion of the seat portion, and a base frame that supports at least the seat portion. The base frame includes a seat portion and a base frame. Connecting the first link member for moving the seat in the front-rear direction with respect to the base frame, the backrest and the base frame, and reclining the backrest with respect to the seat And a drive part for moving the seat part in the front-rear direction with respect to the base frame.
By setting it as such a structure, the space behind when a backrest part reclines can be made small with a simple structure.

Moreover, it is preferable that the base frame is provided on the side or below the seat portion.
By adopting such a configuration, the height of the seat can be suppressed when provided on the side of the seat, and the width of the seat can be suppressed when provided below the seat. .

In addition, the base frame includes a rail extending in the front-rear direction provided with a rack, and the seat part is provided with a pinion, for rolling the pinion on the rack and moving the seat part in the front-rear direction. It is preferable to have a drive part.
By setting it as such a structure, a backrest part can be reclined with the movement to the front-back direction of a seat part by a rack and pinion mechanism.

Moreover, it is preferable that the 2nd link member is comprised so that expansion-contraction is possible.
By setting it as such a structure, the angle of the backrest part with respect to a seat part can be changed by changing the length of a 2nd link member.

Moreover, it is preferable to further have a footrest part which supports a leg, and the footrest part is connected with the backrest part via the connection member.
By setting it as such a structure, a footrest part can be made to interlock | cooperate with the reclining of a backrest part.

The connecting member is preferably an actuator.
By setting it as such a structure, only a footrest part can be moved with respect to a seat part.

  According to the present invention, the space behind the reclining portion can be reduced with a simple structure.

It is a perspective view of a massage machine concerning one embodiment of the present invention. It is a block diagram of a massage machine. It is a front view of a massage unit. It is a left view of the massage machine which concerns on one Embodiment of this invention, and is a figure which shows the state which raised the backrest part and the state which moved the seat part back. It is a left view of the massage machine which concerns on one Embodiment of this invention, and is a figure which shows the state which fell the backrest part, the state which moved the seat part ahead, and the state which lowered the footrest part. It is a left view of the massage machine concerning one embodiment of the present invention, and is a figure showing the state where the backrest part was turned down, the state where the seat part was moved ahead, and the state where the footrest part was raised. It is a left view of the massage machine which concerns on one Embodiment of this invention, (a) is the state before the drive of the retractable actuator which is a 2nd link member, (b) is the retractable which is a 2nd link member. It is a figure which shows the state after the drive of an actuator. It is the left view which expanded the seat part vicinity which abbreviate | omitted the base frame which concerns on one Embodiment of this invention. It is the left view which expanded the seat part vicinity which shows the relationship between the rack and pinion which concern on one Embodiment of this invention.

[Overall configuration of massage machine]
Hereinafter, the whole structure of the massage machine 1 which concerns on one Embodiment of this invention is demonstrated.
FIG. 1 is a perspective view of a massage machine 1 according to an embodiment of the present invention. FIG. 2 is a block diagram of the massage machine 1. FIG. 3 is a front view of the massage unit 13. FIG. 4 is a left side view of the massage machine 1 according to an embodiment of the present invention, and shows a state where the backrest part 4 is raised and a state where the seat part 3 is moved rearward.
FIG. 5 is a left side view of the massage machine 1 according to the embodiment of the present invention, and shows a state where the backrest part 4 is tilted, a state where the seat part 3 is moved forward, and a state where the footrest part is lowered. It is. FIG. 6 is a left side view of the massage machine 1 according to an embodiment of the present invention, showing a state where the backrest part 4 is tilted, a state where the seat part 3 is moved forward, and a state where the footrest part 5 is raised. FIG.

As shown in FIG. 1 to FIG. 6, a massage machine 1 according to an embodiment of the present invention includes a seat part 3 on which a user is seated and a backrest part 4 on which a user connected to the rear part of the seat part 3 is scolded. A footrest part 5 provided in the front part of the seat part 3, a base frame 2 supporting at least the seat part 3, a first link member 30 connecting the seat part 3 and the base frame 2, and a backrest part 4 And a second link member 40 that connects the base frame 2.
The massage machine 1 includes a massage unit 6 (massage unit 13, air cells 14 and 15) that massages a user, a control unit 7 that controls functions of the massage machine 1, and various operations of the massage machine 1. And a controller 8 for performing the above. The massage machine 1 may be provided with an armrest (not shown) on which the user's arm is placed on the side of the base frame 2, and the massager 6 (not shown) on the armrest (not shown). May be provided.

On the side part of the backrest part 4, a first rotation axis C <b> 1 with the horizontal direction as the axial direction downward and a second rotation with the horizontal direction positioned above the first rotation axis C <b> 1 as the axial direction. An axis C2 is provided. The first rotation axis C1 pivotally supports the seat portion 3 and the backrest portion 4. The second rotation axis C2 is pivotally supported so that the backrest 4 can be moved in the front-rear direction with respect to the base frame 2.
The front part of the seat part 3 is provided with a third rotation axis C3 whose axial direction is the left-right direction. The third rotation axis C3 is pivotally supported so that the footrest portion 5 can be moved in the vertical direction with respect to the front portion of the seat portion 3.
Since the backrest portion 4 and the seat portion 3 are pivotally supported by the first rotation axis C1, the backrest portion 4 and the seat portion 3 are configured by the first link member 30 and the second link member 40 described later by driving the drive unit 10 described later. The link mechanism is activated, and the backrest portion 4 is also moved in the front-rear direction following the movement of the seat portion 3 in the front-rear direction. The backrest part 4 is configured to be movable (reclining) in the front-rear direction around the second rotation axis C2. In addition, you may provide the extension means (not shown) which can be moved to the footrest part 5 with respect to the seat part 3 in the front-back direction.

  The massage unit 6 includes a massage unit 13 having a pair of left and right treatment elements 62 driven by motors M1 to M3, and air cells 14 and 15 that expand and contract by air supply and exhaust. In this embodiment, the massage unit 13 is provided in the backrest part 4, the air cell 14 is provided in the seat part 3, and the air cell 15 is provided in the footrest part 5. In addition, arrangement | positioning of each massage part 6 is not limited to this. The air cells 14 and 15 can press the user by supplying and exhausting air.

[Composition of massage unit]
As shown in FIG. 3, the backrest part 4 is provided with a massage unit 13 for massaging the upper body of the user from the back (back). This massage unit 13 is composed of a pair of arms 61 that are paired on the left and right sides, and treatment elements 62 that are provided on both upper and lower ends of the arm 61. The left and right treatment elements 62 are moved closer to and away from each other by driving the massage motor M1. The massage massage to be performed and the tapping massage in which the left and right treatment elements 62 alternately advance and retreat to the user side can be performed by driving the massage motor M2. Further, the massage unit 13 can move upward or downward along the height direction by driving the elevating motor M3 to change the position relative to the body or perform a rolling massage. The backrest 4 is provided with a pair of left and right guide rails 16 (see FIG. 1) extending in the height direction, and the massage unit 13 moves along the guide rails 16. Since the massage unit 13 is movable in the height direction, a massage element 62 can massage between the user's neck and waist.

  Moreover, as shown in FIG. 3, the massage unit 13 has a base frame 60a and a movable frame 60b supported by the base frame 60a. The base frame 60a has guide rollers 63 that fit into the guide rails 16 on both the left and right sides. And it can move along a height direction by the raising / lowering mechanism (not shown) which consists of racks and pinions. The movable frame 60b is supported by the base frame 60a via a swing shaft 64 in the left-right direction. Between the base frame 60a and the movable frame 60b, an advancing / retreating drive unit 65 made of an air cell or the like is provided. By driving the advance / retreat drive unit 65, the movable frame 60 b can advance and retreat with respect to the user about the swing shaft 64. Note that the movable frame 60b may not be configured to advance or retract, and the arm 61 may be provided with the advance / retreat drive unit 65 to advance or retract only the arm 61.

  The arm 61 is connected to a rubbing shaft 66 and a hitting shaft 67 extending in the left-right direction. An inclined cam 66a having an inclined shaft portion 66b is provided on both the left and right sides of the rubbing shaft 66, and an arm 61 is attached to the inclined cam 66a. The left and right inclined shaft portions 66b are inclined with respect to the axis of the rubbing shaft 66 so as to have a substantially C shape in a front view. An eccentric cam 67 a having an eccentric shaft portion 67 b that is eccentric with respect to the axis of the hitting shaft 67 is provided on both the left and right sides of the hitting shaft 67, and the arm 61 is attached to the eccentric cam 67 a via a connecting rod 68. ing. The left and right eccentric shaft portions 67b are different from each other in phase with respect to the axis of the hitting shaft 67, specifically, 180 degrees. The kneading shaft 66 and the hitting shaft 67 are rotated by driving the massage motors M1 and M2, respectively. The treatment element 62 performs massaging massage by the rotation of the massaging shaft 66, and performs massaging massage by the rotation of the hammering shaft 67. The arm 61 provided with the treatment element 62, the kneading shaft 66, and the hitting shaft 67 are supported by the movable frame 60b. Therefore, the treatment element 62 can advance and retreat with respect to the user through the movement of the movable frame 60b.

  The arm 61 is swingable in the front-rear direction, and is biased by biasing means (not shown) made of a spring or the like so that the upper treatment element 62 protrudes forward. In addition, as shown in FIG. 2, the massage unit 13 includes a sensor 69 that detects the user's physical information. The sensor 69 can obtain physical information by detecting that the arm 61 has reached a predetermined swinging position. More specifically, when the upper treatment element 62 reaches above the shoulder in the process of raising the massage unit 13 along the height direction, the load acting on the treatment element 62 is released, and the biasing means (FIG. (Not shown), the arm 61 swings forward to a predetermined swing position. The sensor 69 detects that the arm 61 has reached a predetermined swing position, and detects the position of the shoulder based on the vertical position of the massage unit 13 at that time. The position of other parts (neck, back, waist, etc.) is obtained by calculation based on the position of the shoulder. The detected physical information is stored in the control unit 7. The physical information may be input by the user. In this case, for example, physical information can be input by operating the controller 8 and stored in the control unit 7.

[Control system configuration]
As shown in FIG. 2, the massage machine 1 includes a massage unit 13, a drive unit 10, an actuator 17 a as a connecting member 17, air cells 14 and 15 as a massage unit 6, a microcomputer for operating these, and the like. Part 7 is provided. The control unit 7 is provided below the seat unit 3 and is connected to a controller 8 operated by the user, and various massage operations are performed when the user operates the controller 8.

[Structure of the seat]
FIG. 8 is an enlarged left side view of the vicinity of the seat portion 3 from which the base frame 2 according to the embodiment of the present invention is omitted. As shown in FIGS. 1 and 4 to 8, the seat portion 3 is formed of a plate-like member. A notch 3a for preventing interference with the massage unit 13 is provided on the rear side of the seat portion 3 in the front-rear direction, and has a substantially concave shape. On the seat surface 3d of the seat portion 3, a pair of left and right air cells 14 as the massage portion 6 are provided. The air cell 14 can massage the user's buttocks and thighs seated on the seat 3. On the front side of the seat portion 3, a footrest portion 5 described later is pivotally supported via a third rotation axis C3. By driving an actuator 17a as a connecting member 17 to be described later, the footrest part 5 can be moved in the vertical direction with respect to the seat part 3 around the third rotation axis C3.

  As shown in FIGS. 8 and 9, the seat 3 includes a first seat frame 3 b that supports the seat surface 3 d, a second seat frame 3 c provided below the first seat frame 3 b, It is comprised by the 3rd rotating shaft support part 3e provided between the seat part frame 3b and the 2nd seat part frame 3c, and the seat surface 3d provided in the upper part of the 1st seat part frame 3b. Yes. An air cell 14 as a massage part is provided inside the seat surface 3d. The front side of the first seat frame 3b and the front side of the second seat frame 3c are connected via a third rotating shaft support 3e. The second seat frame 3c has a hole for pivotally supporting a first link member 30 (to be described later) on the front side, and a sixth rotating shaft C6 is attached to the hole. It is attached so that the inclination angle increases toward the rear with respect to the first seat frame 3b. A mounting portion for pivotally supporting the first rotation shaft C1 is provided on the rear side of the second seat frame 3c so as to protrude upward. A drive unit 10 is provided between the first seat frame 3b and the second seat frame 3c to move the seat 3 in the front-rear direction with respect to a base frame 2 described later.

The drive unit 10 includes a pinion 10a, which will be described later, and a motor M4 for driving the pinion 10a. By driving the drive unit 10, the pinion 10a moves on a rail 10c described later. The rail 10c extends in the front-rear direction, and a rack 10b is provided on the rail 10c. And the rail 10c is provided in the 3rd base frame 2c which comprises the base frame 2 mentioned later. By doing so, the seat part 3 can move in the front-rear direction while maintaining the tilt angle.
Further, the seat surface 3d of the seat portion 3 is inclined so that the height of the seat surface 3d increases from the rear side toward the front side. By doing so, when the user is seated on the seat 3, the user can sit deeper.

[Configuration of backrest]
As shown in FIGS. 1 and 4 to 7, the backrest portion 4 is formed of a rectangular member that is long in the height direction. A second link member 40, which will be described later, is attached to the vicinity of the center of the side portion of the backrest portion 4 via a second rotation axis C2. The lower part of the backrest part 4 is connected to the seat part 3, and the backrest part 4 can follow and recline as the seat part 3 moves in the front-rear direction.
A guide rail 16 (see FIG. 1) is provided inside the backrest 4, and the massage unit 13 moves along the guide rail 16. Since the massage unit 13 is movable in the height direction, the massage unit 13 can massage between the user's neck and waist.
Although not shown, an air cell as the massage unit 6 may be provided at various places on the backrest unit 4.

  Two shafts are provided on the side of the backrest 4. One is a second rotation axis C2 provided in the vicinity of the center and pivotally supported to move the backrest 4 in the front-rear direction and having the left-right direction as the axial direction. One end of a second link member 40 described later is pivotally supported on the second rotation axis C2. The other end of the second link member 40 is pivotally supported by a first base frame 2a constituting a base frame 2 described later. The other is a first rotation that is provided below the second rotation axis C2 and is pivotally supported to move the backrest portion 4 in the front-rear direction relative to the seat portion 3 with the left-right direction as the axial direction. This is the axis C1. The first rotation axis C <b> 1 connects the second seat frame 3 c of the seat 3 and the backrest 4.

By doing in this way, since the backrest part 4 and the seat part 3 are pivotally supported by the 1st rotating shaft C1, by driving the drive part 10, the 1st link member 30 and the 2nd link The link mechanism composed of the member 40 or the like is activated, and the backrest portion 4 also moves in the front-rear direction following the movement of the seat portion 3 in the front-rear direction.
Further, since the second pivot shaft C2 is provided near the side portion and the center of the backrest portion 4, when the backrest portion 4 reclines backward as the seat portion 3 moves forward, The upper side of the backrest part 4 is tilted rearward and the lower side is pushed forward around the second rotation axis C2.
That is, the space behind the backrest 4 when reclining can be saved.

  Further, a backrest support portion 4a for attaching the backrest portion 4 and one end of an actuator 17a as a connecting member 17 described later is provided below the backrest portion 4 and below the first rotation axis C1. It has been. A fourth rotation axis C4 having an axial direction in the left-right direction is provided on the distal end side of the back support part 4a. The back support part 4a and one end of the actuator 17a as the connecting member 17 are connected by a fourth rotating shaft C4.

[Composition of footrest part]
As shown in FIGS. 1 and 4 to 6, the footrest portion 5 is protruded from a bottom wall 5 a, a side wall 5 b that protrudes forward from the left and right sides of the bottom wall 5 a, and a substantially central portion of the side wall 5 b. The center wall 5c is formed in a concave shape including a bottom wall 5d projecting from the bottom wall 5a and the side wall 5b from the bottom to the front of the bottom wall 5a. An air cell 15 as a massage unit 6 is provided inside the left and right side walls 5b. Moreover, the air cell 15 as the massage part 6 is provided also in the right-and-left both sides of the center wall 5c. An air cell (not shown) may be attached to the upper surface of the sole wall 5d.

  Above the rear surface of the bottom wall 5a, a third rotation shaft C3 having an axial direction in the left-right direction is pivotally supported with respect to a third rotation shaft support portion 3e provided in front of the seat portion 3. A footrest support 5a is located on the rear surface of the bottom wall 5a. The footrest support part 5a is substantially V-shaped, and a roller for smoothly moving the footrest part 5 is attached to an end part in contact with the rear surface of the bottom wall 5a. Moreover, the other end of the actuator 17a as the connecting member 17 is pivotally supported around the seventh rotation axis C7 at the end located below the end to which the roller is attached. Further, on the extension line of the end portion where the other end of the roller and the actuator 17a as the connecting member 17 is pivotally supported, the footrest support portion 5a is rotated upward by driving the actuator 17a as the connecting member 17. For this purpose, a fifth rotation axis C5 is provided. The footrest support 5a rotates upward about the fifth rotation axis C5, so that the footrest 5 rotates upward about the third rotation axis C3.

[Configuration of base frame]
As shown in FIGS. 1 and 4 to 6, the base frame 2 includes a first base frame 2 a in contact with the floor surface, and two second base frames 2 b protruding upward from the first base frame 2 a, It comprises a third base frame 2c attached between the two second base frames 2b. The two second base frames 2b are configured such that the front second base frame 2b is longer than the rear second base frame 2b, and the third base frame 2c is directed from the front side to the rear side. It is provided with an inclination so as to be lowered.
The rail 10c for moving the seat part 3 to the front-back direction is attached to the 3rd base frame 2c. A rack 10b is provided inside the rail 10c. The rack 10b and a pinion 10a, which will be described later, are engaged with each other, and by driving the drive unit 10, the seat portion 3 can be moved in the front-rear direction.

  The other end of the first link member 30 to be described later is pivotally supported in front of the second base frame 2b on the front side provided on the first base frame 2a. The other end of the second link member 40 described later is pivotally supported on the rear side of the rear second base frame 2b provided on the first base frame 2a. Since the other end of the first link member 30 and the other end of the second link member 40 are pivotally supported with respect to the first base frame 2 a, the seat portion with respect to the base frame 2 is driven by driving the drive unit 10. 3 can be moved in the front-rear direction.

  In this embodiment, the base frame 2 is provided so as to be positioned on the side of the seat portion 3, but may be provided so as to be positioned below the seat portion 3. Since the height of the seat part 3 can be suppressed by positioning the base frame 2 to the side of the seat part 3, the user can easily sit. Further, by positioning the base frame 2 below the seat portion 3, the widthwise dimension can be reduced and the height of the seat portion 3 can be increased. Therefore, the knee burden on the user when sitting can be suppressed.

[Configuration of the first link member]
As shown in FIGS. 1 and 4 to 7, the first link member 30 is formed of a long plate-like member. One end of the first link member 30 is pivotally supported by the sixth rotation shaft C6 on the side portion of the second seat frame 3c constituting the seat portion 3. The other end of the first link member 30 is pivotally supported on the front side of the first base frame 2 a constituting the base frame 2. The first link member 30 is inclined rearward when the seat portion 3 is positioned rearward. When the drive unit 10 is driven and the seat part 3 is moved forward, the first link member 30 moves forward so as to draw a convex arc with the other end as the center as the seat part 3 moves forward. It comes to be inclined to.

[Configuration of second link member]
As shown in FIGS. 1 and 4 to 6, the second link member 40 is configured by a long plate-like member. One end of the second link member 40 is pivotally supported with respect to the side portion of the backrest portion 4 and the second rotation axis C2. The other end of the second link member 40 is pivotally supported on the rear side of the first base frame 2 a constituting the base frame 2. The second link member 40 is inclined forward when the seat portion 3 is positioned rearward. Therefore, when the seat part 3 moves forward, the second link member 40 further tilts forward so as to draw a convex arc with the other end as the center, and the backrest part pivotally supported by the seat part 3 4 also moves forward.

  As shown in FIG. 7, the second link member 40 may be configured with an actuator. By using the second link member 40 as an actuator, the tilt angle of the backrest 4 with respect to the seat 3 can be changed. For example, when the actuator is extended (from the state of FIG. 7B to the state of FIG. 7A), the second link member 40 is inclined forward around the other end, and the seat portion 3 The inclination angle of the backrest portion 4 with respect to can be reduced (θ2 to θ1). That is, the user can sit deeper. Further, when the actuator is contracted (when the state of FIG. 7A is changed to the state of FIG. 7B), the second link member 40 is inclined backward with the other end as a center, and the seat portion 3 The tilt angle of the backrest portion 4 with respect to can be increased (θ1 to θ2), so that the user can sit shallower than when the actuator is extended.

[Composition of connecting members]
As shown in FIGS. 4 to 7, the connecting member 17 is a telescopic actuator. One end of the connecting member 17 is pivotally supported with respect to a fourth rotation axis C4 provided on the backrest support portion 4a. The other end is pivotally supported with respect to one end of the footrest support 5a. When the seat portion 3 is moved forward, the lower portion of the backrest portion 4 is pushed forward around the second rotation axis C2. That is, since the lower part of the backrest part 4 is pushed forward, the footrest support part 5a connected to the connecting member 17 is also pushed forward. In addition, by extending the connection member 17, the footrest support part 5a can move upward with the fifth rotation axis C5 as a fulcrum, and the footrest part 5 can be moved further upward.

[Operation pattern 1]
As shown in FIGS. 4 and 5, the operation pattern 1 is changed from the state of FIG. 4 (the state where the backrest portion 4 is raised, the state where the seat portion 3 is moved backward) to the state of FIG. 5 (the backrest portion 4. Is a state in which the state is changed to the state in which the seat 3 is moved forward, the state in which the seat portion 3 is moved forward).

When the drive unit 10 is driven from the state of FIG. 4 (initial state), the seat 3 to which the drive unit 10 is attached starts moving forward. The rear part of the seat part 3 and the lower part of the backrest part 4 are pivotally supported via a first rotation axis C1. The side part of the seat part 3 and one end of the first link member 30 are pivotally supported. Moreover, the side part of the backrest part 4 and the end of the 2nd link member 40 are pivotally supported by the 2nd rotating shaft C2. Therefore, following the movement of the seat portion 3 forward, one end of the first link member 30 moves forward using the other end of the first link member 30 as a fulcrum, and the lower portion of the backrest portion 4 also moves forward. Start. Further, following the forward movement of the lower portion of the backrest portion 4, one end of the second link member 40 moves forward using the other end of the second link member 40 as a fulcrum.
In addition, the 1st link member 30 inclines ahead so that an upward convex arc may be drawn centering on the other end of the 1st link member 30. As shown in FIG. The second link member 40 is inclined forward so as to draw an upwardly convex arc with the other end of the second link member 40 as the center.

  That is, by tilting the backrest part 4 from the initial state, the user's load applied to the seat part 3 side can be gradually moved to the backrest part 4 side. As a result, the load of the user can be used as a force for moving the seat 3 forward while reducing the load on the drive unit 10.

[Operation pattern 2]
As shown in FIG. 5 and FIG. 6, the operation pattern 2 is the state of FIG. 5 (the state where the backrest part 4 is tilted, the state where the footrest part 5 is lowered) to the state of FIG. 6 (the state where the backrest part 4 is tilted) , The state in which the footrest part 5 is raised).

When the actuator 17a as the connecting member 17 is driven and extended from the state of FIG. 5, the other end of the connecting member 17 is extended, and the footrest support portion 5a rotates upward about the fifth rotation axis C5. . Since the footrest part 5 is located on the front side of the footrest support part 5a, the footrest part 5 rotates upward about the third rotation axis C3.
That is, only the footrest part 5 can be moved with respect to the seat part 3 by changing the footrest part 5 from the lowered state to the raised state.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a massage machine that has a simple structure and can reduce the space behind the reclining portion when reclining.

2 base frame 3 seat part 4 backrest part 10 drive part 30 1st link member 40 2nd link member

Claims (6)

A seat where the user sits;
A backrest connected to the rear of the seat;
A base frame that supports at least the seat,
The base frame is
A first link member for connecting the seat and the base frame and moving the seat in the front-rear direction with respect to the base frame;
A second link member for connecting the backrest and the base frame and reclining the backrest with respect to the seat;
The massage machine, wherein the seat is provided with a drive unit for moving the seat in the front-rear direction with respect to the base frame. The massage machine according to claim 1, wherein the base frame is provided on a side or a lower side of the seat portion. The base frame includes a rail extending in the front-rear direction provided with a rack,
The seat has a pinion,
The massage machine according to claim 1 or 2, further comprising a drive unit for rolling the pinion on the rack and moving the seat portion in the front-rear direction. The massage machine according to claim 1, wherein the second link member is configured to be extendable. It further has a footrest part that supports the leg,
The footrest part is connected with the backrest part via the connection member, The massage machine in any one of Claims 1-4 characterized by the above-mentioned. The massage machine according to claim 5, wherein the connecting member is an actuator.

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