Massage machine

Abstract

To provide a massage machine capable of reclining a backrest part and a footrest part of the massage machine at an inexpensive manufacturing cost.SOLUTION: A massage machine includes a seat part, a backrest part, and a footrest part. The backrest part and the footrest part are connected via a rocking mechanism. The rocking mechanism includes: link members; and a drive part arranged on a front / rear side of the link members. When the drive part is driven, the footrest part is moved backward while moving the backrest part forward or the footrest part is moved forward while the backrest part is moved backward.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a massage machine. [Background technology]

[0002] Conventionally, a chair-type massage machine has been proposed that can raise and lower the backrest by inflating and contracting a raising and lowering bag body provided at the rear of the backrest, and can rotate the leg rest by inflating and contracting a rotation bag body (rotation means) provided at the rear of the leg rest (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3686130 Summary of the Invention [Problem to be solved by the invention]

[0004] In the chair-type massage machine described in Patent Document 1, it is necessary to provide a bag body in each location, such as the backrest that is to be raised and lowered and the foot rest that is to be rotated, which increases the number of parts and increases manufacturing costs. The present invention has been made to solve the above-mentioned problems, and aims to provide a massage machine that can recline the backrest and footrest in tandem at low manufacturing costs. [Means for solving the problem]

[0005] The present invention is a massage machine having a seat portion, a backrest portion, and a footrest portion, the backrest portion and the footrest portion being connected via a rocking mechanism, the rocking mechanism being composed of a link member and a drive unit provided on the front or rear side of the link member, and characterized in that by driving the drive unit, the backrest portion is moved forward while the footrest portion is moved backward, or the backrest portion is moved backward while the footrest portion is moved forward. With this configuration, the backrest and footrest can be reclined at low manufacturing costs.

[0006] It is also preferable that the drive unit is composed of a front drive unit located in front of the link member and moving the link member rearward, and a rear drive unit located in the rear of the link member and moving the link member forward. With this configuration, the backrest can be tilted backward by driving the rear drive section, and the backrest can be raised forward by driving the front drive section.

[0007] Also, it is preferable that the drive section is constituted by an air cell. With this configuration, the drive unit can be made more compact.

[0008] It is also preferable that the seat is attached to a base that supports the seat, and that the base is provided with a swing restriction portion that restricts the swing range of the backrest. With this configuration, the range of rocking of the backrest can be restricted so that it does not tilt too far forward or backward.

[0009] In addition, it is preferable that the drive portion is provided in the swing restriction portion. With this configuration, the drive unit can be made more compact.

[0010] It is also preferable that a pair of the rocking mechanisms are provided, one on the left and one on the right. With this configuration, the backrest and footrest can be reclined in a more stable state.

[0011] It is also preferable that the footrest portion is composed of a footrest body and a body support portion, and the rocking mechanism is attached across the backrest portion and the body support portion. With this configuration, it is possible to prevent the swing mechanism from becoming large.

[0012] It is also preferable that a third drive portion is provided between the footrest body and the body support portion for moving the footrest body in a direction away from the body support portion. With this configuration, the footrest body can be rotated further upward.

[0013] In addition, it is preferable that the third drive portion is constituted by an air cell. By adopting such a configuration, the footrest body can be rotated upward with a simple structure. Effect of the Invention

[0014] According to the present invention, the backrest and footrest can be reclined at low manufacturing costs. [Brief description of the drawings]

[0015] [Figure 1] 1 is a perspective view of a massage machine according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a left view of the massage machine according to the embodiment of the present invention. [Diagram 3] FIG. 2 is a left view of the massage machine according to the embodiment of the present invention. [Figure 4] 1 is a block diagram of a massage machine according to an embodiment of the present invention. [Diagram 5]1A and 1B are diagrams showing a frame of a massage machine according to an embodiment of the present invention, in which (a) is a diagram seen from the left, and (b) is a perspective view. [Figure 6] FIG. 1 is a plan view of a massage machine according to one embodiment of the present invention, where (a) shows a state in which a pair of rocking mechanisms are provided on the left and right, and (b) shows a state in which one rocking mechanism is provided in the center.

[0016] [Overall configuration of the massage machine] The overall configuration of the massage machine 1 according to one embodiment of the present invention will be described below. FIG. 1 is a perspective view of a massage machine 1 according to an embodiment of the present invention. FIG. 2 is a view of the massage machine 1 according to an embodiment of the present invention as seen from the left. More specifically, it is a view showing the state before the backrest 4 and the footrest 5 are reclined (the backrest 4 is raised and the footrest 5 is lowered), with the armrest 2 being made transparent to make the structure easier to understand. FIG. 3 is a view of the massage machine 1 according to an embodiment of the present invention as seen from the left. More specifically, it is a view showing the state after the backrest 4 and the footrest 5 are reclined (the backrest 4 is tilted backward and the footrest 5 is raised), with the armrest 2 being made transparent to make the structure easier to understand.

[0017] As shown in Fig. 1 to Fig. 4, a massage machine 1 according to an embodiment of the present invention is composed of a seat 3 on which a user sits, a backrest 4 on which the user leans, which is provided at the rear of the seat 3, a footrest 5 provided at the front of the seat 3, and armrests 2 attached to the sides of the seat 3. The massage machine 1 also has a massage section M (massage mechanism 6, buttocks massage section 3a, leg massage section 5a) that massages the user, a control section 7 that controls the functions of the massage machine 1, and a controller 8 that performs various operations on the massage machine 1. Note that the arrangement of the massage section M is an example and is not limited to this.

[0018] [Seat configuration] As shown in Figs. 1 to 3, the seat 3 is made up of a rectangular member that is long in the left-right direction. The seat 3 is attached to a base F3, which will be described later. More specifically, the base F3 is a part that constitutes the frame F, and refers to the third frame F3. In other words, the base F3 and the third frame F3 are the same. On the upper surface of the seat 3, a pair of buttock massage parts 3a (massage parts M) are provided on the left and right for massaging the buttocks of a user seated on the seat 3. The buttock massage parts 3a are made up of air cells A that expand and contract by supplying and discharging air. It is preferable that the left and right buttock massage parts 3a are configured so that they can expand and contract independently of each other. The configuration of the massage section M arranged on the seat 3 is an example, and is not limited to this. For example, thigh massage sections (not shown) for massaging the sides of the thighs may be provided on the sides of the seat 3, or thigh massage sections (not shown) for massaging the backs of the thighs may be provided on the front side of the seat 3. Also, the buttock massage sections 3a may be of different sizes, and a total of four may be provided in pairs on the front, back, left and right.

[0019] [Backrest configuration] As shown in Figs. 1 to 3, the backrest 4 supports the upper body of the user. The backrest 4 is composed of a rectangular member that is long in the height direction. A guide rail 16 is provided inside the backrest 4 (see Fig. 1), and a massage unit M (massage mechanism 6) is provided via the guide rail 16. The massage mechanism 6 can move up and down along the guide rail 16, and can massage the upper body of the user. The front of the backrest 4 is covered with a cover member (not shown), and the massage mechanism 6 can massage the back of the torso (for example, the shoulders and waist) of the user seated on the seat 3 via the cover member (not shown). Although not shown, air cells may be provided as massage units M at various locations on the backrest 4.

[0020] A pair of first rocking shafts C1 extending in the left-right direction are provided on the sides of the backrest 4 below the center. The first rocking shafts C1 are inserted into holes H1 provided in the frame F (more specifically, the fourth frame F4). In other words, the backrest 4 can recline (hereinafter, may simply be referred to as moving) in the front-rear direction relative to the frame F with the first rocking shafts C1 as a fulcrum. The backrest 4 is reclined in the front-rear direction by the control unit 7 controlling the driving of the drive unit P. The drive unit P, the rocking mechanism L, and the control unit 7 will be described later.

[0021] [Configuration of the rocking mechanism] 2 and 3, the rocking mechanism L is for moving the footrest 5 backward while moving the backrest 4 forward, or for moving the footrest 5 forward while moving the backrest 4 backward. The rocking mechanism L is attached across the backrest 4 and the main body support part 50B. This makes it possible to prevent the rocking mechanism L from becoming large.

[0022] The rocking mechanism L is configured by combining a plurality of members. The rocking mechanism L is configured by a first connecting rod 70 provided below the backrest portion 4, a second connecting rod 71, a first connecting member C2 that connects the first connecting rod 70 and the second connecting rod 71, and a second connecting member 72 provided at an end of the second connecting rod 71. The first connecting rod 70 refers to the link member 70, and the second connecting rod 71 refers to the link member 71. The swing mechanism L is adapted to be operated by the driving unit P. The driving unit P will be described later.

[0023] The first connecting rod 70 connects the backrest portion 4 and the second connecting rod 71. More specifically, the first connecting rod 70 provided below the backrest portion 4 has one end attached to the lower portion of the backrest portion 4 and the other end attached to the first connecting member C2. The first connecting rod 70 extends in the vertical direction and is inclined from the rear to the front. The first connecting member C2 is a member for connecting the first connecting rod 70 and the second connecting rod 71. The first connecting member C2 is formed in a cylindrical shape. The other end of the first connecting rod 70 and one end of the second connecting rod 71 are attached to the first connecting member C2. The second connecting rod 71 is attached to the first connecting member C2 so as to be freely rotatable.

[0024] The second connecting rod 71 connects the first connecting rod 70 and the footrest portion 5. More specifically, the second connecting rod 71 attached to the first connecting member C2 has one end attached to the first connecting member C2, and the other end attached to the footrest portion 5 (more specifically, the rear main body support portion 52 constituting the footrest portion 5) via a second connecting member 72 provided at the other end of the second connecting rod 71. The second connecting rod 71 extends in the front-rear direction and is inclined upward from the rear to the front.

[0025] In short, the first connecting rod 70 is connected to the second connecting rod 71 via the first connecting member C2. The first connecting rod 70 has an end attached to the backrest portion 4, and the second connecting rod 70 has an end attached to the footrest portion 5 via the second connecting member 72 (the backrest portion 4 and the footrest portion 5 are connected via the rocking mechanism L). This allows the footrest portion 5 to move in accordance with the reclining of the backrest portion 4 in the forward and backward directions by the action of the rocking mechanism L (the first connecting rod 70, the second connecting rod 71, the first connecting member C2, the second connecting member 72). In other words, the backrest portion 4 and the footrest portion 5 can be reclined at low manufacturing costs.

[0026] [Drive configuration] The driving unit P is composed of air cells A that expand and contract by supplying and discharging air. By configuring the driving unit P with air cells A, it is possible to prevent the driving unit P from becoming large, and the installation space of the driving unit P can be saved. Two driving units P are provided. More specifically, there are two driving units: a front driving unit 74 that is located in front of the link member 70 (first connecting rod 70) and moves the link member 70 (first connecting rod 70) rearward, and a rear driving unit 73 that is located in the rear of the link member 70 (first connecting rod 70) and moves the link member 70 (first connecting rod 70) forward.

[0027] The drive unit P is attached to the swing restriction units 80, 81. More specifically, the front drive unit 74 is attached to the swing restriction unit 80 attached to the base F3 (third frame F3). The front drive unit 74 (air cell A) is attached so as to be driven (expand and contract) with the lower side in the up-down direction as a fulcrum. The rear drive unit 73 is attached to the swing restriction unit 81 attached to the fourth frame F4. The rear drive unit 73 (air cell A) is attached so as to be driven (expanded and contracted) with the upper side in the vertical direction as a fulcrum. In other words, by attaching the drive unit P to the swing restriction units 80 and 81, the space required for the drive unit P can be saved.

[0028] When the front drive unit 74 is driven, the front drive unit 74 moves from above downward. This causes the front drive unit 74 to come into contact with the first connecting rod 70. The first connecting rod 70 moves in a manner as if being pushed backward by the drive of the front drive unit 74. Since the first connecting rod 70 is connected to the backrest 4, the backrest 4 moves forward (is raised forward) with the first swing axis C1 as a fulcrum. When the rear drive unit 73 is driven, the rear drive unit 73 is driven from below toward above. This causes the rear drive unit 73 to come into contact with the first connecting rod 70. The first connecting rod 70 moves as if being pushed forward by the drive of the rear drive unit 73. Since the first connecting rod 70 is connected to the backrest 4, the backrest 4 moves backward (tilts backward) with the first swing axis C1 as a fulcrum.

[0029] [Footrest section configuration] As shown in Figs. 1 to 3, the footrest section 5 is composed of a footrest body 50A and a body support section 50B. The footrest body 50A is provided with a pair of left and right recesses 5b into which the user's legs can be inserted. Leg massage sections 5a (massage sections M) for massaging the user's legs are provided on the inner walls of both the left and right sides of the recesses 5b. The leg massage sections 5a are composed of air cells A that expand and contract by supplying and discharging air. More specifically, one leg massage section 5a is provided on each of the inner walls of both the left and right sides of the right recess 5b, and one leg massage section 5a is provided on each of the inner walls of both the left and right sides of the left recess 5b. It is preferable that each leg massage section 5a is configured to be able to expand and contract independently. In addition, a sole massage section (not shown) for massaging the soles of the user's feet may be provided on the bottom surface of the recess 5b.

[0030] The footrest portion 5 is attached to the front side of the seat portion 3. More specifically, the main body support portion 50B of the footrest portion 5 is attached to the seat portion 3 so as to be movable in the up-down direction via a shaft (not shown) extending in the left-right direction provided on the front side of the seat portion 3. The main body support portion 50B is composed of a plurality of members. The main body support portion 50B is composed of a front body support portion 51 and a rear body support portion 52. A third drive portion 53 (drive portion P) for moving the footrest portion 5 in the up-down direction is provided between the front body support portion 51 and the rear body support portion 52. The third drive portion 53 is composed of an air cell A. By configuring the third drive portion 53 (drive portion P) with the air cell A, it is possible to move (rotate) the footrest portion 5 upward with a simple configuration.

[0031] More specifically, the rear surface of the footrest portion 5 and the front surface of the front body support portion 51 constituting the body support portion 50B are fixed so as to operate integrally. The third drive portion 53 (drive portion P, air cell A) is attached to the rear body support portion 52 so as to expand with the upper side in the vertical direction as a fulcrum. In addition, a swing mechanism L is attached to the rear body support portion 52. That is, the footrest portion 5 can be moved up and down in conjunction with the reclining of the backrest portion 4 by the swing mechanism L. In addition, by driving the third drive portion 53 (drive portion P, air cell A), the footrest portion 5 can be moved in a direction away from the rear main body support portion 52 (the footrest portion 5 can be rotated further upward).

[0032] [Control Unit Configuration] FIG. 4 is a block diagram of the massage machine 1 according to an embodiment of the present invention. As shown in Fig. 4, the massage machine 1 is provided with a control unit 7 consisting of a microcomputer and the like for operating the massage mechanism 6 and the air supply and exhaust device 9. This control unit 7 is provided below the seat 3 and is connected to a controller 8 that is operated by the user. The user operates the controller 8 to perform various massage operations.

[0033] [Configuration of the exhaust system] The air supply / exhaust device 9 is composed of a pump 9a for supplying air to the air cell A (front drive unit 74(P), rear drive unit 73(P), etc.) and a valve 9b for connecting the air cell A and the pump 9a. Air can be supplied to and exhausted from the air cell A by turning the valve 9b on and off. That is, by turning on the valve 9b, an air flow path can be secured and air can be supplied to the air cell A. Also, by turning off the valve 9b, the air contained in the air cell A can be exhausted. It is preferable that the valve 9b connected to the drive unit P (front drive unit 74, rear drive unit 73) is configured as a retention valve. By configuring the valve 9b as a retention valve, even if the power of the massage machine 1 is turned off, the drive unit P (front drive unit 74, rear drive unit 73) does not exhaust air and can maintain the inflated state due to the action of the valve 9b.

[0034] [Frame configuration] FIG. 5 is a diagram showing a frame F of a massage machine 1 according to an embodiment of the present invention, where (a) is a diagram seen from the left, and (b) is a perspective view. 5, the frame F is configured by combining multiple members. More specifically, the frame F is made up of a first frame F1 that is rod-shaped and extends in the front-rear direction, a second frame F2 that is rod-shaped and extends in the up-down direction, a plate-shaped third frame F3 (base F3) attached to the second frame F2, a fourth frame F4 that is rod-shaped and extends in the up-down direction, and a fifth frame F5 that is rod-shaped and extends in the left-right direction.

[0035] The first frames F1 are provided in a pair on the left and right with a predetermined distance between them. A fifth frame F5 is provided between the pair of left and right first frames F1. More specifically, the fifth frames F5 are provided on the front and rear sides of the first frame F1 (the fifth frames F5 are provided in a pair on the front and rear sides). That is, the first frame F1 and the fifth frame F5 are combined with each other to form the shape of the Roman numeral "2."

[0036] A pair of second frames F2 extending in the up-down direction are attached to the front side of the first frame F1. More specifically, the second frame F2 is attached to the upper surface of the first frame F1 at a location where the first frame F1 and the front fifth frame F5 are joined. The third frame F3 is attached to the upper side (opposite the first frame F1) of the second frame F2. The third frame F3 is made of a plate-like member. The third frame F3 is also a base F3 for mounting the seat part 3. The seat part 3 is attached to the upper surface of the third frame F3. A first support member 80 for mounting the front drive part 74 is provided at the rear of the third frame F3. The first support member 80 is made of a plate-like member, and its length in the left-right direction is the same as the length of the third frame F3 in the left-right direction. The first support member 80 plays a role as a rocking motion restricting part 80. The swing restriction portion 80 serves to restrict the swing range of the backrest portion 4 so that it does not tilt too far backward.

[0037] A pair of fourth frames F4 extending in the up-down direction are attached to the left and right rear side of the first frame F1. More specifically, the fourth frame F4 is attached to the upper surface of the first frame F1 at a location where the first frame F1 and the rear fifth frame F5 are joined. The fourth frame F4 is substantially L-shaped. As shown in FIG. 5(a), the dimensions of the fourth frame F4 in the front-rear direction are different between the upper side and the lower side. More specifically, the dimensions of the upper side of the fourth frame F4 in the front-rear direction are larger than the dimensions of the lower side of the fourth frame F4 in the front-rear direction. Note that the dimensions of the fourth frame F4 in the front-rear direction are merely an example and are not limited to this. For example, the dimensions of the upper side and the lower side may be the same.

[0038] A hole H1 is provided on the upper side of the fourth frame F4, which penetrates in the left-right direction. A first rocking shaft C1 provided on the backrest 4 is inserted into this hole H1. In other words, by controlling the drive of the rocking mechanism L (more specifically, controlling the drive of the drive unit P) by the control unit 7, the backrest 4 and the footrest 5 can be reclined in conjunction with each other.

[0039] A second support member 81 for mounting the rear drive unit 73 is provided on the lower side of the fourth frame F4. The second support member 81 is made of a plate-shaped member, and its length in the left-right direction is the same as the distance between the left and right fourth frames F4. In other words, the second support member 81 is mounted across the fourth frame F4 located on the left side and the fourth frame F4 located on the right side. By mounting the second support member 81, the strength of the fourth frame F4 in the left-right direction can be ensured. The second support member 81 plays a role as a rocking motion restricting portion 81. The rocking motion restricting portion 81 functions to restrict the rocking range so that the backrest portion 4 does not rise too far forward.

[0040] The combination of the frames F1 to F5 is an example and is not limited to this. For example, another frame may be combined between the second frame F2 and the fourth frame F4, or another frame may be combined between the first support member 80 and the second support member 81. By changing the combination of the frames F1 to F5 or the number of frames to be combined, the strength of the frame F itself can be ensured.

[0041] [Backrest and footrest interlocking] The case where the backrest 4 is moved rearward from a forward position will be described. When the backrest 4 is in a forward position (see FIG. 2), the front drive unit 74 (drive unit P) is in a driven state, and the rear drive unit 73 (drive unit P) is in a non-driven state. More specifically, the air cell A serving as the front drive unit 74 is in an expanded state, and the air cell A serving as the rear drive unit 73 is in a contracted state. At this time, the first connecting rod 70 is pushed rearward by the drive of the front drive portion 74 (drive portion P).

[0042] From this state, the driving of the front drive unit 74 (drive unit P) is stopped, and the rear drive unit 73 (drive unit P) is driven. More specifically, the air cell A serving as the front drive unit 74 is contracted, and the air cell A serving as the rear drive unit 73 is expanded. By doing so, the first connecting rod 70, which has been pushed rearward by the drive of the front driving unit 74 (driving unit P), gradually starts to move forward. More specifically, the rear driving unit 73 (driving unit P) is driven (air cell A expands) in accordance with the timing at which the drive of the front driving unit 74 (driving unit P) is stopped, so that the first connecting rod 70 gradually moves forward by the drive of the rear driving unit 73 (driving unit P). By adjusting the drive amount (inflation amount of air cell A) of front drive unit 74 (drive unit P) and rear drive unit 73 (drive unit P), the backrest portion 4 can be adjusted to any position desired by the user.

[0043] The lower end of the first connecting rod 70 is connected to the second connecting rod 71 via the first connecting member C2. Therefore, the second connecting rod 71 moves in a manner of being pushed forward as the first connecting rod 70 moves forward. The second connecting rod 71 is connected to the footrest portion 5 via the second connecting member 72. Therefore, the footrest portion 5 moves upward with the connecting portion between the seat portion 3 and the footrest portion 5 as a fulcrum as the second connecting member 72 moves forward. In other words, by controlling the driving of the driving unit P (front driving unit 74, rear driving unit 73), the backrest unit 4 and the footrest unit 5 can be reclined in conjunction with each other.

[0044] The case where the backrest 4 is moved forward from a position located at the rear will be described. When the backrest 4 is located at the rear (see FIG. 3), the rear drive unit 73 (drive unit P) is in a driven state, and the front drive unit 74 (drive unit P) is in a non-driven state. More specifically, the air cell A serving as the rear drive unit 73 is in an expanded state, and the air cell A serving as the front drive unit 74 is in a contracted state. At this time, the first connecting rod 70 is pushed forward by the drive of the rear drive portion 73 (drive portion P).

[0045] From this state, the driving of the rear drive unit 73 (drive unit P) is stopped, and the front drive unit 74 (drive unit P) is driven. More specifically, the air cell A serving as the rear drive unit 73 is contracted, and the air cell A serving as the front drive unit 74 is expanded. By doing so, the first connecting rod 70, which has been pushed forward by the drive of the rear drive unit 73 (drive unit P), gradually starts to move rearward. More specifically, the front drive unit 74 (drive unit P) is driven (air cell A expands) in accordance with the timing at which the drive of the rear drive unit 73 (drive unit P) is stopped, so that the first connecting rod 70 gradually moves rearward by the drive of the front drive unit 74 (drive unit P).

[0046] The lower end of the first connecting rod 70 is connected to the second connecting rod 71 via the first connecting member C2. Therefore, as the first connecting rod 70 moves rearward, the second connecting rod 71 moves in a manner of being pushed back rearward. The second connecting rod 71 is connected to the footrest portion 5 via the second connecting member 72. Therefore, as the second connecting member 72 moves rearward, the footrest portion 5 moves downward with the connecting portion between the seat portion 3 and the footrest portion 5 as a fulcrum. In other words, by controlling the driving of the driving unit P (front driving unit 74, rear driving unit 73), the backrest unit 4 and the footrest unit 5 can be reclined in conjunction with each other.

[0047] FIG. 6 is a plan view of the massage machine 1 according to an embodiment of the present invention, where (a) shows a state in which a pair of rocking mechanisms L are provided on the left and right, and (b) shows a state in which one rocking mechanism L is provided in the center. More specifically, in order to make the configuration of the rocking mechanism L easier to understand, the massage machine 1 is viewed from above in a state in which the armrests 2 and the seat 3 are removed from the massage machine 1 (with the frame F exposed). The difference between FIG. 6(a) and FIG. 6(b) is the number of rocking mechanisms L and the mounting positions of the rocking mechanisms L. The configuration of the rocking mechanisms L is as described above, so a description will be omitted. The number of rocking mechanisms L and the mounting positions of the rocking mechanisms L will be described.

[0048] As shown in FIG. 6(a), two rocking mechanisms L are provided. Specifically, a pair of rocking mechanisms L are provided symmetrically on the left and right sides when viewed from the center of the massage machine 1. By providing two rocking mechanisms L symmetrically, the load that the rocking mechanisms L receive from the footrest portion 5 can be distributed. Furthermore, by providing two rocking mechanisms L, the backrest portion 4 and the footrest portion 5 can be reclined in conjunction with each other in a more stable state compared to when there is only one rocking mechanism L. The distance between the left and right rocking mechanisms L is an example and is not limited to this. For example, the distance between the left and right rocking mechanisms L may be wider or narrower than the state shown in FIG. 6(a). If the distance between the left and right rocking mechanisms L is wider, the backrest portion 4 and the footrest portion 5 can be reclined in conjunction with each other in a more stable state compared to when the distance between the left and right rocking mechanisms L is narrow. If the distance between the left and right rocking mechanisms L is narrowed, the number of drive units P (air cells A) can be reduced by increasing the size of the drive units P, thereby reducing manufacturing costs.

[0049] As shown in Fig. 6(b), one rocking mechanism L is provided. Specifically, one rocking mechanism L is provided at the center of the massage machine 1. By providing one rocking mechanism L at the center of the massage machine 1, the number of components of the rocking mechanism L can be reduced compared to when two rocking mechanisms L are provided, and the massage machine can be manufactured at a lower cost.

[0050] The configuration of the rocking mechanism L is one example and is not limited to this. For example, a link structure such as a pantograph may be adopted, or a structure combining an eccentric cam, gears, racks, etc. may be adopted. Furthermore, the size of the rocking mechanism L (such as the diameter of the first connecting rod 70 and the second connecting rod 71) is also one example and is not limited to this. Any structure may be used as long as it can recline the backrest portion 4 and the footrest portion 5 in conjunction with each other. [Industrial Applicability]

[0051] INDUSTRIAL APPLICABILITY The present invention is applicable to a massage machine capable of reclining the backrest and footrest in conjunction with each other at low manufacturing costs. [Explanation of symbols]

[0052] Massage machine 1 Seat 3 Backrest 4 Footrest section 5 Link member 70,71 Swing mechanism L Drive unit P

Claims

1. A massage machine having a seat portion, a backrest portion, and a footrest portion, The backrest portion and the footrest portion are connected via a swing mechanism, The rocking mechanism includes: A link member; and a drive unit provided on the front or rear side of the link member, A massage machine characterized in that, by driving the drive unit, the backrest portion is moved forward while the footrest portion is moved backward, or the backrest portion is moved backward while the footrest portion is moved forward.

2. The drive unit is a front drive unit located in front of the link member and configured to move the link member rearward; 2. The massage machine according to claim 1, further comprising: a rear drive unit located behind the link member for moving the link member forward.

3. 3. The massage machine according to claim 1, wherein the drive unit is composed of an air cell.

4. The seat is attached to a base that supports the seat, 3. The massage machine according to claim 1, wherein the base is provided with a swing restriction portion that restricts a swing range of the backrest portion.

5. The massage machine according to claim 4, wherein the drive unit is provided in the rocking control unit.

6. 3. The massage machine according to claim 1, wherein the rocking mechanism is provided in a pair on the left and right.

7. The footrest portion is A footrest body, A main body support part and a main body support part are included.

3. The massage machine according to claim 1, wherein the rocking mechanism is attached across the backrest portion and the main body support portion.

8. The massage machine according to claim 7, characterized in that a third drive unit is provided between the footrest body and the body support portion for moving the footrest body in a direction away from the body support portion.

9. The massage machine according to claim 8, wherein the third drive unit is constituted by an air cell.

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