JP2008022892A - Seat structure and massager - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat structure by which a user can return the seat section to its original position without user's operation when a movement of the seat section is stopped, and to provide a massager using the same. <P>SOLUTION: The seat structure has a seat body 13, frames 14 arranged in both the right and left side portions of the seat body 13, shaft members 22 connecting the seat body 13 to the frames 14 oscillatably in right and left directions, air cells 20 pushing the seat body 13 in right and left directions, the shaft members 22 constitutes a returning mechanism S automatically positioning the seat body 13 to the center portion of the right and left frames 14 without applying external force. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a seat structure and a massage machine using the seat structure for a seat portion.

As a chair that does not get tired even if it sits for a long time, a slider is provided on the back side of the seat where the user sits, and this slider is passed through a bearing fixed to the leg so that the seat can move in the horizontal direction. Is known (see Patent Document 1).
JP 2001-87075 A (see FIG. 1)

When the operation structure of the seat described in Patent Document 1 is used in a conventionally known chair-type massage machine, for example, when the operation of moving the seat is stopped, the seat is at an arbitrary position in the horizontal direction. It stops. However, the user's body remains distorted when the seat is close to either the left or right direction. In this state, the user cannot receive a massage with an appropriate posture. Therefore, the user has the disadvantage of having to return the seat part to the original position in order to receive the massage.
An object of this invention is to provide the seat structure which can return a seat part to an original position even if a user does not operate in view of the said conventional problem, and a massage machine using the same.

In order to achieve the above object, the present invention takes the following technical means.
That is, the present invention provides a seat body whose upper surface is a seat surface on which a user is seated, a frame for supporting the seat body so as to be swingable in a horizontal direction, and the seat body by its own weight. And a return mechanism that automatically returns to a reference position by force.
According to the seat structure of the present invention, the seat body is automatically returned to the reference position by the force of its own weight by the return mechanism, so that the seat body can be naturally returned to the reference position without any operation by the user. it can.

In the present invention, it is preferable that the return mechanism has connection means for connecting the seat body in a suspended state to the frame so as to be swingable in the horizontal direction.
In this case, the seat body returns to the reference position by the force of its own weight by the connecting means for connecting the seat body to the frame in a suspended state. In addition, if this is done, the seat body can move smoothly in the horizontal direction, and the return mechanism can be configured with a simple structure.

In the present invention, it is preferable that a lock mechanism that locks the swing of the seat main body at the reference position is provided.
In this case, when the user does not want to move the seat body from the reference position, the seat body can be locked so as not to move.

The present invention also includes a seat for seating the user, a treatment part having a human body contact surface for the user, and a massage part provided in the treatment part for giving a massage operation to the user, the seat part Has a seat structure as described above.
According to the massage machine of the present invention, since the seat portion is automatically returned to the reference position by the force due to its own weight by the return mechanism, the seat portion can be naturally returned to the reference position without being operated by the user. it can.

In the present invention, it is preferable that the treatment portion is a backrest portion erected from a rear end portion of the seat portion and / or a leg rest portion provided at a front end portion of the seat portion.
In this case, since the seat part naturally returns to the reference position even if the user does not operate it by himself, the user can receive a massage with the massage part provided on the backrest part or the leg rest part in an appropriate posture.

In the present invention, it is preferable that a control unit that stops swinging of the seat portion by the lock mechanism when the massage operation of the massage portion is started is provided.
In this case, since the massage operation and the swinging of the seat are not performed simultaneously, it is possible to eliminate the influence on the body by performing these simultaneously.

  According to the present invention, since the seat portion automatically returns to the reference position by the return mechanism, the seat portion can be returned to the reference position without being operated by the user.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing an embodiment of a massage machine employing a seat having the seat structure of the present invention. The massage machine M includes a seat 1 that comes into contact with the buttocks and thighs (thick thighs) of a seated user (the user), and the back and head of the user standing from the rear end of the seat 1. A backrest portion 2 that abuts against the arm portion, and an armrest portion 2a that is disposed on both the left and right sides of the seat portion 1 and can support the user's elbow and forearm portion. Further, a leg rest portion 3 is provided at the front end portion of the seat portion 1 so as to be in contact with the leg of the seated user and fixed to the floor surface.

  At least one of the seat part 1, the backrest part 2 and the leg rest part 3 is provided with a massage part for performing massage for the user. As a massage part, there exist the treatment element 4 provided in the backrest part 2, an air cell, a vibrator, etc., for example. In addition, an air supply device that supplies air to the air cell, and a control device 5 that controls the movement of each massage means and controls the operation of the seat portion 1, the backrest portion 2, and the leg rest portion 3 are provided below the seat portion 1. Is arranged. The control device 5 is connected to an operating device 6 operated by a user, and when the operating device 6 is operated, the power is turned on and off and various massage operations are performed. The operating device 6 is detachably supported by a holder 7 provided in the armrest 2a. The operating device 6 is provided with a power button, a stop button, a massage course button, and a swing button and a swing stop button for driving a driving means to be described later.

  The leg rest portion 3 is configured to be able to swing and drive in the vertical direction, and mainly a first divided body 3a that supports the user's calf portion, and a second divided body that mainly supports the user's sole and heel. 3b. Furthermore, the leg rest part 3 can be brought into and out of contact with the seat part 1, and the first divided body 3a and the second divided body 3b can be brought into and out of each other. Thereby, the leg mounting part 3 can be expanded-contracted according to the length of a user's leg.

  As shown in FIG. 2, the backrest part 2 is supported so as to be tiltable by support legs 10 provided on both the left and right sides of the massage machine, and a reclining mechanism r for changing the tilt angle of the backrest part 2 is provided. ing. FIG. 2 shows a state where the backrest 2 is raised by the reclining mechanism r. The reclining mechanism r includes, for example, an actuator 12 that is extended and contracted by an electric motor 11, and a reclining operation is performed by the extension and contraction of the actuator 12. That is, when the actuator 12 is extended, the backrest 2 is raised, and when the actuator 12 is contracted, the backrest 2 is tilted.

  FIG. 3 is a front view showing a seat structure K employed in the seat portion 1 of the massage machine M, and FIG. 4 is a top view thereof. This seat structure K can constitute the seat part 1 for seating the user, and includes a seat body 13 whose upper surface is a seat surface 13a for seating the user. The seat structure K includes a total of four frames 14 arranged on each of the left and right sides of the seat body 13, swing generation means for forcibly swinging the seat body 13 in the left-right direction, and each frame 14 And a side plate member 15 disposed on the outer side of the head plate. The seat structure K further includes a pair of left and right shaft members 22 as connecting means for connecting the seat body 13 to the frame 14 so as to be swingable in the left-right direction. 3 indicates the thighs of the left and right legs of the user. In practice, the cushion member of the seat portion 1 is placed on the seat body 13.

  The seat main body 13 has a main body portion 17 formed of a flat plate member having a rectangular shape in plan view formed with a required thickness, and left and right flange portions 18 extending in the front-rear direction at the lower ends of both left and right sides thereof. Each frame 14 is formed in a rectangular cross section and is disposed on the front and rear sides of each flange 18 (see FIG. 5), and the seat main body 13 is surrounded by the four frames 14 from the four corners. The lower ends of the two front frames 14 and the lower ends of the two rear frames 14 are fixed to each other by a lower frame 19 extending in the left-right direction.

  The frame 14 and the lower frame 19 are fixed to the support leg 10 so that they cannot move. The side plate member 15 disposed outside the frame 14 is formed in a flat plate shape. On the inner side surface of the upper end portion of the side plate member 15, a bellows-like air cell 20 is provided as a swing generation means that expands or contracts by supplying and discharging air. Further, the side plate member 15 is fixed to the frame 14 and cannot be moved by being joined to a fixing member 21 extending in the left-right direction in the vicinity of the upper end portion of the frame 14.

  As shown in FIG. 6, each shaft member 22 includes a main body shaft portion 221 that extends in the front-rear direction, an arm portion 222 that extends upward from the front and rear ends of the main body shaft portion 221, and an upper end of the arm portion 222 that is higher than the main body portion 17. It consists of a frame shaft part 223 extending to the front and rear sides, and is formed in a concave shape as a whole. Further, as shown in FIG. 7, the thick plate-like first fixing member 23 is fixed to the lower surface of the seat body 13, and the second plate-like second plate is attached to the lower surface in a state of being in close proximity to the first fixing member 23. The fixing member 24 is fixed. The body shaft portion 221 of the shaft member 22 is passed through a gap formed by the first and second fixing members 23 and 24. Thereby, in the state in which the seat main body 13 is placed on the main body shaft portion 221, the displacement in the left-right direction is restricted. In addition, you may employ | adopt the other structure which controls the shift | offset | difference of the left-right direction between the seat main body 13 and the main-body shaft part 221.

  In addition, a support portion 141 having a hole portion 14a through which the frame shaft portion 223 can be inserted is provided at the upper end portion of each frame 14. The front and rear frame shaft portions 223 are inserted through the holes 14 a of the support portion 141. The arm portion 222 connects the main body shaft portion 221 and the frame shaft portion 223, and the arm portion 222 and the main body shaft portion 221 are connected to the frame 14 with the axis of the frame shaft portion 223 as a rotation center. It is free to rotate. Thus, the seat body 13 placed on the body shaft portion 221 is connected to the front and rear frames 14 in a suspended state so as to be able to reciprocate in the left-right direction. That is, the seat body 13 is suspended from the front and rear frames 14 in a swing-like state, and the left and right frames that are naturally at the reference position unless an external force is applied by the air cell 20 or the like. 14 is positioned in the middle. Thus, the shaft member 22 constitutes a return mechanism S in which the seat body 13 is naturally positioned at the center between the left and right frames 14.

  The air cells 20 on both sides fixed to the inner surface of each side plate member 15 are disposed between the side plate member 15 and the upper portion of the seat body 13. Each air cell 20 is connected to an air source such as an air pump (not shown) via a pipe and an open / close switching valve. The air cell 20 expands when air is supplied from the air pump, and contracts when air is discharged. It can expand and contract between the member 15 and the seat body 13. Expansion and contraction of each air cell 20 is selectively performed by the operation of an open / close switching valve. Each air cell 20 is expanded and contracted by pressing the swing button of the operating device 6 to operate the open / close switching valve.

  When the left air cell 20 expands, the seat body 13 is pushed and moved to the right (see FIGS. 8A and 8B). When the right air cell 20 is expanded, the seat body 13 is pushed to the left. Accordingly, the left and right air cells 20 can swing the seat body 13 suspended from the frame 14 in the left-right direction. That is, when one of the left and right air cells 20 expands and the other air cell 20 contracts, the expanded air cell 20 can push and move one side of the seat body 13. As a result, the user on the seat body 13 can be caused to move in the in-plane direction of the seat surface 13a, that is, in the horizontal direction. Note that the position and number of air cells are not limited to this, and the left and right air cells may be provided at a plurality of locations (for example, two locations) in the front-rear direction of the side plate portion.

  The seat structure K is provided with a lock mechanism 25 that locks the swing of the seat body 13 in the left-right direction at the center between the left and right frames 14 (see FIGS. 9 and 10). The lock mechanism 25 includes an L-shaped bracket 26 provided on the seat body 13 and a solenoid device 27 disposed in the vicinity of the L-shaped bracket 26. The L-shaped metal fitting 26 includes a fixing portion 261 fixed to the lower surface of the seat body 13 and a front surface portion 262 extending downward from the front end of the fixing portion 261. The front surface portion 262 is formed with an insertion hole portion 26a through which the movable shaft 271 of the solenoid device 27 can be inserted. The insertion hole 26 a is formed with a diameter that is slightly larger than the movable shaft 271. The solenoid device 27 is fixed to the inside of the frame 14 arranged on the left front side, and the movable shaft 271 is inserted into and removed from the insertion hole portion 26a.

  The solenoid device 27 is controlled by the control device 5 as its control means, and the control device 5 switches between the insertion and removal of the movable shaft 271. When the movable shaft 271 is inserted into the insertion hole 26a by the lock mechanism 25, the swinging of the seat body 13 in the left-right direction is stopped, and when the movable shaft 271 is removed from the insertion hole 26a, the seat body 13 can swing in the left-right direction. Further, the left-right width a of the front surface portion 262 of the L-shaped metal fitting 26 is wider than the width b at which the seat body 13 swings in the left-right direction. Therefore, even when the movable shaft 271 of the solenoid device 27 comes out while the seat body 13 is swung to the left or right, the movable shaft 271 does not come to the outside of the L-shaped bracket 26. Accordingly, it is possible to prevent the seat body 13 from being stopped while being swung in the left-right direction.

  FIG. 11 is a flowchart from when the locked seat body 13 is swung to when it is locked again, and FIG. 12 is a flowchart for explaining the locked state of the seat body 13 when massage is started. . When the swing button of the operating device 6 is pressed while the seat body 13 is locked by the lock mechanism 25, the solenoid device 27 is operated, the movable shaft 271 is pulled in, and the seat body 13 is unlocked. After the seat body 13 is unlocked, the air cell 20 moves and the seat body 13 starts to swing in the left-right direction. In this state, when the swing stop button of the operating device 6 is pressed, the air cell 20 is stopped, the solenoid device 27 is subsequently operated, the movable shaft 271 is released, and the seat body 13 is locked.

  Next, a case where massage is started when the seat body 13 is in the swinging state will be described. When one of the operation buttons for performing a massage operation is pressed while the seat body 13 is in the swinging state, the movement of the air cell 20 is automatically stopped. Subsequently, the solenoid device 27 is automatically operated to move the movable shaft 271 and the seat body 13 is locked. When the seat body 13 is locked, massage is started. In addition, the lock cannot be released even if the swing button of the operating device 6 is pressed to swing the seat body 13 during the massage. Therefore, the seat body 13 cannot be swung while the massage is being performed. Thereby, the influence on a user's body by the seat part 1 rock | fluctuating simultaneously with massage is eliminated.

  FIG. 13 is an explanatory diagram showing an outline of the seat 1 and the leg rest 3 of the massage machine M and the user who is seated. The user puts the buttocks on the seat 1 and sits with the legs extended forward, the leg tip side of the leg is placed on the floor surface, and the leg tip is against the floor surface by the weight of the leg. It becomes a fixed state. In this state, for example, by moving the seat 1 in the left-right direction, the user can perform an exercise of moving the waist while fixing the legs to the floor. The swinging width of the seat portion 1 (seat main body 13) in the left-right direction is 15 mm from the center between the left and right frames 14 to the left and right. The swinging width of the seat body 13 can be changed by changing the length of the arm portion 222 of the shaft member 22.

  Moreover, the leg rest part 3 has the holding part 29 which hold | grips a user's leg. The grip portion 29 is a massage device for a leg rest that presses the left and right legs of the user while sandwiching the left and right legs. This massage device is an air cell that expands and contracts by supplying and discharging air. By inflating these air cells, each leg of the user is fixed to the leg rest 3. In the present embodiment, gripping the leg by the grip portion 29 does not mean a state in which the entire leg or part of the leg is gripped, but the entire leg or part of the leg is held at a predetermined time for a predetermined time. Includes grabbing only between.

  And the control apparatus 5 can rock | fluctuate the seat main body 13 with which the seat part 1 is provided in the left-right direction in the state which the said holding part 29 hold | gripped the user's leg. According to this, in the state where the user's leg is fixed to the leg rest portion 3, the swinging in the left-right direction is performed with respect to the user on the seat portion 1. The state shown by the two-dot chain line in FIG. 13 shows a state where the seat portion 1 is swung to one side. In this manner, by swinging the seat portion 1 in the left-right direction while the user's leg portion is fixed to the leg rest portion 3, a more effective swinging motion to the pelvis or the like becomes possible.

  According to the massage machine M in which the seat structure K of the present embodiment is adopted, the seat body 13 is automatically returned to the center between the left and right frames 14 by the return mechanism S without depending on the air cell 20. When the operation of the seat portion 1 including the main body 13 is stopped, the seat main body 13 can be naturally returned to the center without being operated by the user. Therefore, the user can receive a massage with an appropriate posture while sitting straight. Further, since the return mechanism S has a simple structure in which only the shaft member 22 and the like are provided, the number of parts can be suppressed.

  Further, since the position at which the seat body 13 is stopped is determined, the design for providing the lock mechanism 25 is facilitated. Moreover, since the seat main body 13 provided in the seat portion 1 is suspended from the front and rear frames 14, the swinging in the left-right direction is smooth. In order to move the seat body 13, it may be possible to dispose a roller or the like on the lower side of the seat body 13, but the structure is more compact than such a structure, and the seat body 13 swings. The sound at the time can be reduced.

  14A and 14B are front views showing a seat structure K according to the second embodiment of the present invention. The present embodiment is different from the first embodiment in that the seat body 13 swings in the left-right direction when the user is pressed by the air cell 20. In each embodiment described below, common components are denoted by the same reference numerals and description thereof is omitted. Specifically, the position of the air cell 20 is higher than that of the first embodiment, and the air cell 20 can press the leg of the user from the left and right. The left and right side plate members 15 extend upward from the seat surface 13 a of the seat body 13 by substantially the vertical dimension of the air cell 20. And the air cell 20 is being fixed to the upper inner surface of each side-plate member 15, and when these right and left air cells 20 expand | swell, a user's leg will be pushed from the outer side.

  Since the seat body 13 is suspended between the front and rear frames 14 like a swing, when the user's leg placed on the seat body 13 is pushed by the air cell 20 (see FIG. 14B). Move in the pressed direction. Further, the air cell 20 of the present embodiment can be moved even when the seat body 13 is locked while the massage is stopped, or even when the massage is started and the seat body 13 is locked. Since the air cell 20 can directly press the leg of the user, the user can receive leg massage by the air cell 20 even when the seat body 13 is in the locked state.

  FIG. 15 is a front view showing a seat structure K of the third embodiment according to the present invention. This embodiment is different from the first embodiment in that the shape of the seat body 13 is different and its thickness is thin. Specifically, the thickness of the main body portion 17 is the same as that of the left and right flange portions 18, and the seat main body 13 has a flat plate shape and is very light. The air cell 20 is provided at a height that presses the leg of the user. Therefore, the air cell 20 does not press the seat body 13 but directly presses the user's leg.

  As in the second embodiment, the air cell 20 in the present embodiment is in a state where the seat body is locked while the massage is stopped, or even when massage is started and the seat body 13 is locked. It can be driven. Thereby, the user can receive a leg massage by the air cell 20 even when the seat body 13 is locked. And since the seat main body 13 is very light compared with the thing of 1st embodiment, the seat main body 13 can be swung quickly in the left-right direction.

  FIG. 16 is a front view showing a seat structure K of the fourth embodiment according to the present invention. This embodiment is different from the first embodiment in that the shape of the seat body 13 is different. Specifically, the lower part of the main body part 17 is not provided with a collar part, and the upper collar part 30 is provided on both the left and right sides of the upper part of the main body part 17. The main body shaft portion 221 of the shaft member 22 is disposed so as to be rotatable on the lower surface of the main body portion 17. The air cell 20 is provided at a height that presses the leg of the user. Therefore, the air cell 20 directly presses the user's leg. As in the second embodiment, the air cell 20 in the present embodiment is in a state where the seat body 13 is locked while the massage is stopped, or even when massage is started and the seat body 13 is locked. Can be driven. Thereby, the user can receive a leg massage by the air cell 20 even when the seat body 13 is locked.

  FIG. 17 is a front view showing a seat structure K according to a fifth embodiment of the present invention. This embodiment is different from the first embodiment in that the shape of the seat body 13 is different. Specifically, no collar portion is provided at the lower portion of the main body portion 17, and upper collar portions 31 extending outward are provided on the left and right sides of the upper portion of the main body portion 17. The upper collar portion 31 is extended outward so as to substantially cover the air cell 20 fixed to the side plate member 15. And the air cell 20 arrange | positioned under the upper collar part 31 presses the seat main body 13, and rock | fluctuates it in the left-right direction. In the seat structure of the present embodiment, the left and right upper collar portions 31 are extended outward, and the seat surface 13a is wider than that of the first embodiment. Thereby, a wide area is securable on the upper surface of the seat part 1 for a user to seat.

  FIG. 18 is a front view showing a seat structure K according to a sixth embodiment of the present invention. The present embodiment is different from the first embodiment in that the air cell 20 is disposed inside the seat body 13. Specifically, two left and right space portions 33 are formed inside the main body portion 17, and the air cell 20 is disposed in each space portion 33. The air cell 20 is fixed to a support member 34 that extends into the space 33, and the air cell 20 expands to press the inner wall 17 a of the main body 17.

  And if the air cell 20 expand | swells and presses the inner wall 17a, the seat main body 13 will move to the left-right direction. In addition, window portions (not shown) are formed on the left and right sides of the main body portion 17 so that the air cell 20 and the support member 34 do not contact each other. Therefore, when the seat body 13 swings in the left-right direction, the body portion 17 does not interfere with the air cell 20 or the support member 34. In the seat main body 13 configured as described above, the air cell 20 is disposed inside the seat main body 13, and therefore the seat structure K can be made compact.

  FIG. 19 is a cross-sectional view showing a seat structure K according to a seventh embodiment of the present invention, and FIG. 20 is a plan view of the seat structure K. The seat structure K includes a seat body 13, a frame 14 that accommodates the seat body, an air cell 20 that swings the seat body in the left-right direction, and a return mechanism S that returns the seat body to a reference position. . The seat body 13 is made of a flat plate member that is formed in a required thickness and has a rectangular shape in plan view. The frame 14 includes a side portion 141 located on the left and right sides of the seat body 13, a front portion 142 located at the front and rear of the seat body 13, a rear portion 143, and a bottom portion 144. Further, the frame 14 is attached to the back surface of the bottom portion 144. Support legs 30 are provided for support.

  An air cell 20 is fixed to the inner surface of each side portion 141, and the seat body 13 is pressed from the left and right directions by expanding the air cell 20. That is, when one of the left and right air cells 20 expands and the other air cell 20 contracts, the expanded air cell 20 can push and move one side of the seat body 13. A pedestal 31 constituting the return mechanism S is placed on the bottom 144 of the frame 14 in a state of being fitted into the frame 14. The upper surface 31 a of the pedestal 31 is curved in the left-right direction with the center between the left and right side portions of the frame 14 as a middle line.

  Further, four cylindrical rolling members 32 constituting the return mechanism S are interposed between the lower surface of the seat body 13 and the pedestal 31. The rolling member 32 moves the seat body 13 by rolling in the left-right direction. Therefore, if no force is applied, the seat body 13 is automatically returned to the center between the left and right side portions 141 by its own weight. Even with such a seat structure K, when the operation of the seat body 13 is stopped, the seat body 13 can be naturally returned to the center without being operated by the user.

  FIG. 21 is a cross-sectional view of a backrest portion showing another embodiment of the massage machine M provided with the seat structure K of the present invention, as seen from the upper side (headrest) side. The backrest 2 is provided with an operating means 45 that can selectively protrude the left side and the right side of the backrest surface 2a on the user side forward. This operation means 45 is a massage means corresponding to each of the left and right sides of the user's back. The massage means 45 is provided so as to correspond to the left side and right side of the back of the user's torso, and can press the left or right side of the user's back toward the front. . The massage means 45 has a left air cell 46a and a right air cell 46b, and these air cells 46a and 46b can be expanded and contracted by supplying and discharging air.

  As shown in FIG. 21A, when the right air cell 46b is expanded, the right side portion of the backrest surface 2a can be protruded toward the user side (forward), and the right side portion of the back can be pushed. As a result, a twisting operation is performed in which the right half of the user's upper body (torso) B who is drowning in the backrest 2 is placed in front of the left half. On the other hand, as shown in FIG. 21B, when the left air cell 46a expands, the left side portion of the backrest surface 2a protrudes toward the user side (forward), and the left side portion of the back can be pushed. . As a result, a twisting operation is performed in which the left half of the upper half (body) B of the user who is drowning in the backrest 2 is placed in front of the right half.

  The control device (not shown) included in the massage machine M projects the left side and right side of the backrest surface 2a forward by the massage means 45 in the backrest 2 when the seat body 13 is swung in the left-right direction. Can be performed. Specifically, as shown in FIG. 21A, when the seat body 13 is moved in the right direction, the right air cell 46b is inflated to cause the right side portion of the backrest surface 2a to protrude. . Alternatively, as shown in FIG. 21B, when the seat body 5 is moved in the left direction, the left air cell 46a is inflated to cause the left side portion of the backrest surface 2a to protrude. Thereby, the operation | movement which twists an upper body can be accompanied with the operation | movement which rocks a waist | hip | lumbar part to the right side or the left side. The control device moves the seat body 13 to the right and projects the right side of the backrest surface 2a, and moves the seat body 5 to the left and projects the left side of the backrest surface 2a. Alternately. Thereby, a more effective rocking | fluctuation exercise | movement is attained and the treatment effect can be heightened further.

  Further, the leg rest part 3 is configured to be movable in the longitudinal direction of the leg to be gripped and in the left and right direction perpendicular thereto, and the leg rest part 3 is moved by a driving means (not shown) for the leg rest part 3. It can be set as the structure driven to the front-back and left-right direction of a longitudinal direction. Specific operations in the leg rest portion 3 include left-right swing, front-back swing, or composite swing (∞-shaped motion) obtained by combining left-right swing and front-back movement. Further, by performing each of these swings in a suspended state in which the leg rest portion 3 is lowered or in a horizontal state in which the leg rest portion 3 is flipped upward, or in an intermediate state in the up and down direction, the leg rest portion 3 is moved vertically or forward and backward. It can be swung in a three-dimensional manner, or can be swung three-dimensionally in the front, rear, up, down, left and right directions. 21A and 21B show a state in which the leg rest portion 3 is swung left and right.

  And the control means with which this massage machine M is equipped can perform the operation | movement which combined by any two or all of the legrest part 3, the seat part 1, and the backrest part 2. FIG. That is, the operation of swinging the seat body 13 in the left-right direction, the operation of projecting the left side and the right side of the backrest surface 2a forward by the massage means 45 in the backrest 2, and the driving means for the leg rest 3 It is possible to operate by combining at least two of the operations of moving the leg rest portion 3 in the front-rear direction and the left-right direction. For example, the control means moves the seat body 13 left and right or back and forth when swinging in the leg rest portion 3, and the left and right sides of the backrest surface 2 a by the massage means 45 in the backrest portion 2. Both or one of the operations of projecting forward can be performed.

  Specifically, in FIG. 21 (a), when the seat body 13 is moved in the right direction, the right air cell 46b is inflated to cause the right side portion of the backrest surface 2a to protrude, and further, a leg rest is placed. The part 3 is in a state of swinging to the left. In FIG. 21B, when the seat body 13 is moved to the left, the left air cell 46a is inflated to cause the left side portion of the backrest surface 2a to protrude, and the leg rest portion 3 is further moved. It is in a state of being swung to the right. Thereby, the operation | movement which twists an upper body and a lower body can be accompanied with the operation | movement which rocks a waist | hip | lumbar part to the right side or the left side.

  In addition, all the said embodiment is illustrations and is not restrictive. The technical scope of the present invention is defined by the claims, and all modifications within the scope equivalent to the configurations described therein are also included in the technical scope of the present invention. The connecting means for connecting the seat main body to the frame is not limited to the shaft member, and any structure may be adopted as long as the seat main body can be swung to constitute the return mechanism. For example, it can be composed of four arms extending from the front surface and rear surface of the seat body to the frame. In addition to the seat body described in the above embodiments, other shapes may be used, and the shape and number of frames can be changed. Further, the number, shape, and mounting position of the air cells that are the swing generation means can be changed. Further, the swing generation means may be other than an air cell, and although not shown, it can be an actuator or the like that is expanded and contracted by a motor.

  Further, as a return mechanism for returning the seat portion to the reference position, a structure in which springs are interposed between the left and right side surfaces of the seat body and the both side portions of the frame shown in the seventh embodiment, for example, can be used. Specifically, both ends of the springs disposed on the left and right sides of the seat body may be fixed to the seat body and the side part, respectively. According to this structure, when the seat body is no longer pressed by the air cell, the seat body returns to the reference position by the pulling force of the spring arranged on one side and the pushing force of the spring arranged on the other side. Can do. In addition, the massage machine may be a seat chair type without a leg rest, or may be a mat type that receives a massage in a state where the user is lying down.

  In the above embodiment, the solenoid device is provided as the lock mechanism. However, the seat main body may be locked by the user operating the lock button or the lever. Further, although the embodiment in which the seat body is swung in the left-right direction has been disclosed, the seat body is swung in the left-right direction and the front-rear direction, or only in the front-rear direction, and the seat body is returned to the original reference position by the return mechanism. It may be restored. On the other hand, the seat body can be returned to the reference position without providing the return mechanism described above in the massage machine. For example, when the operation of the air cell by the user is stopped or when the massage operation is started, the control device may control the air cell to automatically push the seat body back to the reference position. According to this, for example, the seat main body returns to the original position at the same time as the massage is started, and the user can receive the massage in an appropriate posture.

  In addition, the seat body may be swung in the left-right direction or the front-rear direction with the tilt angle of the backrest adjusted by the reclining mechanism. In this case, the user can receive an exercise in which the waist is shaken in the left-right direction or the front-rear direction while keeping the posture in which the upper side is tilted backward from the waist. As a result, a more effective rocking motion is possible and a high relaxation effect is obtained. The tilt angle of the backrest is preferably 120 to 170 degrees with respect to the seat surface. In addition, when it is desired to have a complete recumbent posture, the tilt angle may be adjusted to 180 degrees, and when the body is warped so that the head is positioned below the body, the tilt angle is set to 180 degrees. Adjust it.

It is a side view which shows one Embodiment of the massage machine by which the seat structure of this invention was employ | adopted. It is a side view of the massage machine for demonstrating a reclining mechanism. It is a front view which shows a seat structure. FIG. 4 is a sectional view taken along line AA in FIG. 3. It is a perspective view of the upper part vicinity of a flame | frame. It is a side view of a seat structure in the state where a side plate member was removed. It is a perspective view explaining the state in which the shaft member is provided in the seat main body. (A) is a front view which shows the state which the seat main body is rock | fluctuating to one side, (b) is the BB sectional drawing of (a). It is a side view explaining a locking mechanism. It is a front view explaining a locking mechanism. It is a flowchart until it locks this again after rocking | locking the seat main body. It is a flowchart explaining the locked state of the seat main body when a massage is started. It is explanatory drawing which has shown the outline of the user who sits down and a seat part, a leg mounting part. (A) is a front view which shows 2nd embodiment of a seat structure, (b) is the front view of the state which the seat main body rock | fluctuated to one side. It is a front view which shows 3rd embodiment of a seat structure. It is a front view which shows 4th embodiment of a seat structure. It is a front view which shows 5th embodiment of a seat structure. It is a front view which shows 6th embodiment of a seat structure. It is sectional drawing which shows 7th embodiment of a seat structure. It is a top view which shows 7th embodiment of a seat structure. It is sectional drawing of the backrest part which shows other embodiment of a massage machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Seat part 2 Backrest part 3 Leg mounting part 5 Control apparatus 13 Seat main body 14 Frame 141 Support part 15 Side plate member 17 Main body part 18 Grow part 20 Air cell 22 Shaft member 221 Main body shaft part 223 Frame shaft part 25 Lock mechanism 27 Solenoid device K Seat structure S Return mechanism

Claims (6)

A seat body whose upper surface is a seat surface on which a user is seated;
A frame for supporting the seat body in a swingable manner in the horizontal direction;
A seat structure, comprising: a return mechanism that automatically returns the seat body to a reference position by a force of its own weight.   The seat structure according to claim 1, wherein the return mechanism includes a connecting means for connecting the seat body in a suspended state to the frame so as to be swingable in a horizontal direction.   The seat structure according to claim 1, further comprising a lock mechanism that locks the swing of the seat body at the reference position. A seat for seating the user, a treatment part having a human body contact surface for the user, and a massage part provided in the treatment part for giving a massage operation to the user;
The said seat part has the seat structure as described in any one of Claims 1-3, The massage machine characterized by the above-mentioned.   5. The massage machine according to claim 4, wherein the treatment part is a backrest part erected from a rear end part of the seat part and / or a leg rest part provided at a front end part of the seat part.   The massage machine according to claim 4, further comprising a control unit that stops rocking of the seat portion by the lock mechanism when a massage operation of the massage portion is started.

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