JP5441823B2 - Massage machine - Google Patents

Description

  The present invention relates to a massage machine capable of performing a rubbing massage on a user's seat.

  Conventionally, massage machines that rub the legs and arms of the user are known. As an example of such a massage machine, for example, a pair of treatment plates arranged on both sides of the leg so as to sandwich the leg of the user are reciprocated along the side of the leg to A side surface is rubbed (see, for example, Patent Document 1).

JP 2008-245968 A

  However, the massage machine disclosed in Patent Document 1 has a configuration in which treatment plates are arranged on both side surfaces of each leg so that both side surfaces of both legs can be rubbed. When trying to perform a rubbing massage on the seat of the user using this massage machine, it is impossible to perform a rubbing massage satisfactorily because the treatment plate located inside each leg part is in the way.

  Then, this invention was made | formed in order to eliminate such a problem, and it aims at providing the massage machine which can perform a rubbing massage with respect to a user's seat.

The present invention relates to a massage machine capable of placing at least a user's seat, and a pair of left and right outer rubbing portions having reciprocating motions in the front-rear direction and facing side surfaces of the seat; An intermediate rubbing portion provided between the rubbing portions and inclined upward as the surface facing the lower surface of the seat is substantially flat or toward the left and right central side, and has a rubbing portion for rubbing the seat. It is characterized by that.
By adopting such a configuration, since the upper surface of the intermediate rubbing portion is an upper inclined surface that is inclined upward as it goes to a substantially flat or left and right central side, the seat can be placed on the upper surface of the intermediate rubbing portion. The side surface of the seat can be rubbed and massaged satisfactorily by the side portion of the outer rubbing portion.

Moreover, it is preferable to have a massage part which is provided in the said intermediate | middle rubbing part and presses a seat toward the said side part from the downward direction.
By having such a configuration, the massage portion provided in the intermediate rubbing portion presses the seat from the lower side toward the side portion of the outer rubbing portion, so that it is good in a state where the side surface of the seat is pressed against the side portion. The side of the seat can be rubbed and massaged.

Moreover, it is preferable to have the massage part which is provided in the side part of the said outer side rubbing part, and presses a seat from substantially upper direction. In this case, the massage part provided on the side part of the outer rubbing part is constituted by an air cell that expands on the upper side with the lower side as a base part, and the massage part provided on the intermediate rubbing part is left and right with the left and right outer side as a base part. It is preferable that the inside is constituted by an air cell that expands.
By adopting such a configuration, it is possible to perform a rubbing massage in a state in which the seat is held so as to wrap in a substantially vertical direction by the massage portion provided in the outer rubbing portion and the massage portion provided in the intermediate rubbing portion. it can.

Further, it is preferable that the intermediate rubbing portion reciprocates in the front-rear direction with a phase different from that of the outer rubbing portion in the front-rear direction. In this case, the outer rubbing portion has a bottom portion facing the lower surface of the seat, and is configured to support the thigh in the seat by both the bottom portion of the outer rubbing portion and the upper surface of the intermediate rubbing portion. Preferably it is.
By adopting such a configuration, the seat becomes difficult to move in the front-rear direction due to the back-and-forth movement of the outer rubbing portion and the intermediate rubbing portion in the front-rear direction. be able to. Further, the seat can be stably supported on the rubbing portion by both the bottom portion of the outer rubbing portion and the upper surface of the intermediate rubbing portion.

Further, according to another aspect of the present invention, there is provided a massage machine capable of placing at least a user's seat, reciprocating in the front-rear direction, and on a side portion facing the side surface of the seat and a lower surface of the seat. It has a rubbing part which respectively has a bottom part which opposes, and rubs and massages a seat, and has a massage part which presses a seat toward the side part from the lower part.
By having such a configuration, the massage part presses the seat from below to the side part of the outer rubbing part, so that the side part of the seat is pressed against the side part, and the massage is favorably rubbed against the side face of the seat. Can be applied.

  ADVANTAGE OF THE INVENTION According to this invention, the massage machine which can perform a rubbing massage with respect to a user's seat can be provided.

It is a perspective view of the massage machine of the non-reclining state concerning the embodiment of the present invention. It is a left view of the massage machine of the state which raised the footrest which concerns on embodiment of this invention. It is a left view of the massage machine of the forward-turning state which concerns on embodiment of this invention. It is a top view of the massage machine of the non-reclining state which concerns on embodiment of this invention. It is a functional block diagram of a massage machine concerning an embodiment of the present invention. It is a perspective view of a seat part. It is a front view of a seat part. It is a perspective view of the seat which abbreviate | omitted a part of rubbing part. It is the perspective view seen from the other direction of the seat which abbreviate | omitted the base part. It is a left view of the seat part which abbreviate | omitted the base part, and is a figure explaining operation | movement of a rubbing part. It is the front schematic diagram which looked at the seat from the front, (a) shows the state where the front end part of the outside rubbing part fell most, and the front end part of the middle rubbing part raised most, (b) shows outside rubbing It shows a state where the front end part of the part is raised most and the front end part of the intermediate rubbing part is lowered most. It is a perspective view of a footrest. It is a bottom view of a footrest. It is a perspective view of the footrest which abbreviate | omitted a part of rubbing part. It is the perspective view seen from the other direction of the footrest which abbreviate | omitted the base part. It is a left view of the footrest which omitted a base part, and is a figure explaining operation of a rubbing part. It is the bottom schematic diagram which looked at the footrest from the lower part, (a) shows the state where the lower end part of the outside rubbing part was most retracted, and the lower end part of the intermediate rubbing part was most advanced, (b) is the outside rubbing part The lower end portion of the intermediate rubbing portion is most advanced, and the lower end portion of the intermediate rubbing portion is most retracted. It is operation | movement explanatory drawing of each air cell and rubbing drive source in the treatment pattern 1. FIG. It is operation | movement explanatory drawing of each air cell and rubbing drive source in the treatment pattern 2. FIG. It is operation | movement explanatory drawing of each air cell and each rubbing drive source in the treatment pattern 3. FIG. It is a perspective view of the seat part concerning other embodiments of the present invention.

[overall structure]
Hereinafter, the whole structure of the massage machine 1 which concerns on embodiment of this invention is demonstrated based on FIGS. FIG. 1 is a perspective view of a massage machine 1 in a non-reclining state according to an embodiment of the present invention, and FIG. 2 is a left side view of the massage machine 1 in a state where a footrest is raised according to an embodiment of the present invention. 3 is a left side view of the massage machine 1 in the forward-turned state according to the embodiment of the present invention, and FIG. 4 is a plan view of the massage machine in the non-reclining state according to the embodiment of the present invention. FIG. 5 is a functional block diagram of the massage machine 1 according to the embodiment of the present invention. 2 and 3, the left armrest 6 is not shown in FIG. 2 and FIG. 3, and in FIGS. 1 to 3, cover portions that respectively cover the seat 3 and the footrest 4. 24 and 53 are omitted.

  As shown in FIGS. 1 to 4, the massage machine 1 includes a main body frame 2 installed on a floor surface, and a user's buttocks and / or thighs (hereinafter referred to as a buttocks and / or a thigh) provided on the upper side of the body frame. A footrest 4 on which the thigh is sometimes referred to as a seat), a footrest 4 on which the seat 3 and the body frame 2 are pivotably mounted and on which the legs of the user are placed, and the seat 3 And a backrest portion 5 that is pivotably provided on the rear side of the main body frame 2 and on which the user can lean, and an armrest portion 6 that is provided on the left and right sides of the seat portion 3 and the main body frame 2 and on which the arm of the user is placed. It is configured as a chair type. In the present invention, the user sitting on the massage machine 1 in the state of FIG. 1 faces the front, the front is “front”, the rear is “rear”, and the left hand side is “left”. The right hand side is “right”, the head side is “upper”, the waist side is “lower”, and other cases will be described as appropriate.

As shown in FIGS. 2 and 3, the backrest 5 is interposed between the main body frame 2 and the lower portion of the backrest 5, and is always in the direction in which the backrest 5 is raised (rightward in FIG. 2). An urging member 61 made of an urging spring or the like, an abutting member 62 that is provided at the tip of the urging member 61 and abuts against the backrest 5, and guides expansion and contraction of the urging member 61 and the abutting member 62. Reclining can be performed by a reclining mechanism 60 constituted by a rod-shaped guide shaft 65 inserted into both members 61 and 62. That is, when the user leans on the backrest 5, the rotation axis 63 provided in the midway portion (substantially central portion) in the vertical direction is centered on the rear side (not shown) from the non-reclining state shown in FIG. 2. The backrest 5 can be reclined at an arbitrary position between the collapsed reclining state. Further, as shown in FIG. 3, the backrest 5 and the abutting member 62 are not fixed, and the backrest 5 can be brought into a forward-turned state in which the backrest 5 is rotated forward about the rotation shaft 63. it can.
As shown in FIGS. 1 to 5, the footrest 3 can be rotated up and down around a horizontal axis by an actuator 64 (see FIG. 5) made of an electric motor, a fluid pressure cylinder, an air cell, or the like. 1 can be stopped at any position between the state where the footrest 4 shown in FIG. 1 hangs down and the state where the footrest 4 shown in FIG. 2 is raised. In the present embodiment, the actuator 64 is configured by an air cell that expands and contracts by supplying and exhausting air.

  As shown in FIGS. 1 and 5, the seat portion 3 has a rubbing portion 13 and an air cell 7 as massage portions for massaging the seat, and the footrest 4 is a rubbing portion 40 and air cell 8 as massage portions for massaging the legs. The backrest part 5 has an air cell 9 as a massage part for massaging the trunk (back and waist). Below the seat portion 3, an air supply / exhaust device 10 having a pump and a valve for supplying and exhausting air to each of the air cells 7 to 9, rubbing drive portions 14 and 41 to drive the rubbing portions 13 and 40, which will be described later, and A CPU 11 that controls the driving of the air supply / exhaust device 10, a memory (RAM), and a control unit 11 including a microcomputer having a storage unit (ROM) are provided. The control unit 11 is electrically connected to an operation unit 12 operated by a user, and based on an input signal input from the operation unit 12, the rubbing drive units 14 and 41, the air supply / exhaust device 10, and an actuator An output signal for driving and controlling 64 is output. The seat 3 is provided with a first sensor S1 that detects the position of the rubbing part 13 in the front-rear direction, and the footrest 4 is provided with a second sensor S2 that detects the vertical position of the rubbing part 40. ing.

[Structure of the seat]
Hereinafter, the structure of the seat part 3 of the massage machine 1 which concerns on embodiment of this invention based on FIGS. 6-9 is demonstrated. 6 is a perspective view of the seat portion 3, FIG. 7 is a front view of the seat portion 3, and FIG. 8 is a perspective view of the seat portion 3 in which a part of the rubbing portion 13 is omitted. These are the perspective views seen from the other direction of the seat part 3 which abbreviate | omitted the base part 15. FIG.

  As shown in FIGS. 6 and 8, the seat portion 3 includes a rubbing portion 13 that performs rubbing massage on the side surface and the lower surface of the seat of the user, and a rubbing that drives the rubbing portion 13 to perform rubbing massage. The driving unit 14 and the base unit 15 provided on the upper side of the main body frame 2 and supporting the rubbing unit 13 and the rubbing driving unit 14 are configured. That is, the rubbing portion 13 and the rubbing driving portion 14 are supported by the main body frame 2 by fixing the base portion 15 to the main body frame 2.

[Configuration of base section]
As shown in FIG. 8, the base portion 15 has a configuration in which the upper portion and the front and rear portions are opened by a plate-like bottom portion 15 a and plate-like side portions 15 b erected from both left and right sides of the bottom portion 15 a. The rubbing portion 13 is movably supported on the left and right side portions 15b of the base portion 15 via the power transmission portion 16. A bottom 15 a of the base portion 15 supports a power transmission unit 16 and a rubbing drive source 17 including a motor that drives the rubbing unit 13 via the power transmission unit 16. Further, as shown in FIG. 7, on the outside of the left and right side portions 15b, there is provided an attachment portion 18 formed in an L-shape when viewed from the front and mounted on the main body frame 2 from above.

[Configuration of rubbing part]
As shown in FIGS. 6 to 9, the rubbing portion 13 is supported by the base portion 15 via the power transmission portion 16, is connected to the power transmission portion 16, and is movable in the vertical direction and the front-rear direction. A pair of left and right outer rubbing portions 19 disposed on the outer portion of the left and right, and connected to the power transmission portion 16 are movable in the vertical direction and the front and rear direction, and between the pair of left and right outer rubbing portions 19 and 19. And an intermediate rubbing portion 20 disposed on the inner side portion of the seat.

  As shown in FIGS. 6 and 7, the outer rubbing portion 19 includes a plate-like side portion 21 having an opposed inner side surface 21 a facing the left and right outer surfaces of the seat, and a side that is substantially integrated with the side portion 21. A plate-like bottom portion 22 that extends from the lower end portion of the portion 21 toward the left and right inward sides and has an opposed inner bottom surface 22a that faces the outer portion of the lower surface of the seat. The pair of left and right outer rubbing portions 19 are supported on both side portions 15 b and 15 b of the base portion 15 via a power transmission portion 16 so as to be movable. The side portion 21 in the present embodiment is composed of a relatively hard member made of a synthetic resin blow-molded body or the like, and is composed of a first side portion 34 integrally formed with the bottom portion 22, steel (iron plate), and the like. And a second side portion 35 rotatably coupled to the opposed inner bottom surface 21a of the bottom portion 21 via a hinge portion 36. A relatively soft cushion material made of urethane or the like is fixed to the left and right outer surfaces of the second side portion 35. The second side portion 35 is located on the inner side of the first side portion 34 and is always urged toward the left and right outer sides by a torsion spring (not shown) provided on the hinge portion 36. Yes. Therefore, when the backrest portion 5 is brought forward, the second side portion 35 is rotated leftward and rightward against the biasing force of the torsion spring, so that the backrest portion 5 and the second side portion 35 are rotated. Can be prevented. In the present embodiment, as shown in FIG. 7, the side portion 21 of the outer rubbing portion 19 is set to be larger than the vertical dimension (height dimension) of the thigh M of the user. The thigh M is configured to be pressed from substantially above by an air cell 7 which will be described later. Although it is difficult to ensure a sufficient vertical dimension only with the first side part 34 made of a blow-molded body, this embodiment has a sufficient vertical dimension by adding the second side part 35 made of steel. Is secured.

  A pair of left and right air cells 7L and 7R as massage portions are respectively provided on the opposite inner side surface 21a of the side portion 21 of the pair of left and right outer rubbing portions 19 and 19 (more specifically, the opposite inner side surface of the second side portion 35). Are provided in the front-rear direction, and the air cells 7L and 7R are connected to the air supply / exhaust device 10 via an air pipe (not shown) and can be expanded and contracted by air supply / exhaust. The pair of left and right air cells 7L and 7R are provided at positions corresponding to the side surfaces of the seat on the opposed inner side surface 21a, and are configured in a bellows shape so that the upper side expands and expands with the lower side as a base (see FIG. 7 dash-dot line). Accordingly, the pair of left and right air cells 7L and 7R expands in a direction opposite to each other and expands, and the left air cell 7L has a left inner surface 20a (an inner left side to be described later) having the left thigh M in the middle rubbing portion 20. The air cell 7R on the right side is pressed from the substantially upper side toward the opposed inner bottom surface 20a (the right inner bottom surface 20aR described later) of the intermediate rubbing portion 20 toward the bottom surface 20aL). To do.

  As shown in FIG. 6, the intermediate rubbing portion 20 is configured in a substantially flat plate shape having an opposed inner bottom surface (upper surface) 20 a facing the inner portion of the lower surface of the seat. The opposing inner bottom surface 20a includes a left inner bottom surface 20aL for placing the left portion of the seat, a right inner bottom surface 20aR for placing the right portion of the seat, and a rear inner bottom surface 20aB for placing the rear portion of the seat. Have. The intermediate rubbing portion 20 is supported on both side portions 15 b and 15 b of the base portion 15 via a power transmission portion 16 so as to be movable. The intermediate rubbing portion 20 is composed of a relatively hard member made of a synthetic resin blow-molded body or the like.

  The opposed inner bottom surface 20a of the intermediate rubbing portion 20 is provided with a pair of left and right air cells 7l, 7r as a massage portion in the front-rear direction. The air cells 7l, 7r are provided with an air pipe (not shown). It is connected to the air supply / exhaust device 10 through the air supply / exhaust device 10 and can be expanded and contracted by air supply / exhaust. The pair of left and right air cells 7l and 7r are provided at positions corresponding to the thigh M on the opposed inner bottom surface 20a (that is, the left inner bottom surface 20aL and the right inner bottom surface 20aR). It is configured in a bellows shape so as to expand and expand (see the two-dot chain line in FIG. 7). Accordingly, the pair of left and right air cells 7l and 7r expand and expand in directions opposite to each other, and press the left thigh M toward the side portion 21 of the left outer rubbing portion 19 from below, The thigh M is pressed from below toward the side portion 21 of the right outer rubbing portion 19.

  A mounting surface on which the seat is mounted is formed by the opposed inner bottom surface 22a of the bottom portion 22 of the left and right outer rubbing portions 19, and the opposed inner bottom surface of the intermediate rubbing portion 20 and 20a. Therefore, when the user sits on the seat 3, the left thigh M is placed over the opposing inner bottom surface 22a of the left outer rubbing portion 19 and the left inner bottom surface 20aL of the intermediate rubbing portion 20. The right thigh M is placed between the opposing inner bottom surface 22a of the right outer rubbing portion 19 and the right inner bottom surface 20aR of the intermediate rubbing portion 20, and the right and left outer rubbing portions 19 have an opposing inner surface. The collar portion is placed over the bottom surface 22a and the rear inner bottom surface 20aB of the intermediate rubbing portion 20. The bottom portion 22 and the intermediate rubbing portion 20 of the outer rubbing portion 19 are arranged close to each other in the left-right direction so that the thigh M does not fall between the rubbing portions 19 and 20.

  As shown in FIGS. 4 and 7, the rubbing portion 13 constituted by the pair of left and right outer rubbing portions 19 and the intermediate rubbing portion 20 is integrated by a cover portion 24 whose surface is made of a stretchable fabric or the like. In addition to preventing the rubbing portion 13 from being exposed to the outside, the risk of the seat being sandwiched between the rubbing portions 19 and 20 is reduced. The cover portion 24 is formed in a substantially flat surface so as to cover the rubbing portion 13 from above. More specifically, the cover portion 24 integrally covers the bottom portion 22 and the intermediate rubbing portion 20 of the outer rubbing portion 19 from above, and A covering portion 24a that extends to the front of the seat portion and hangs downward, and a pair of left and right cutout portions 24b that open in the vertical direction so that the side portion 21 of the outer rubbing portion 19 is exposed upward. Yes. The front end portion of the covering portion 20a has an engaging portion 24c made of a hook-and-loop fastener that is overlapped with and engaged with an upper end portion of a cover portion 53 that covers the footrest 4 described later in detail. By making the cover part 24 as described above, the back and forth movement (rubbing operation) of the rubbing part 13 is not hindered, and the rubbing part 13 reciprocates back and forth so that it sits between the main body frame 2 and the seat part 3. Can be reduced, and the risk of the seat being sandwiched between the body frame 2 or the seat portion 3 and the footrest 4 by the vertical rotation of the footrest 4 can be reduced.

[Configuration of rubbing drive unit]
Hereinafter, the configuration of the rubbing drive unit 14 will be described with reference to FIGS. 8 and 9.
As shown in FIGS. 8 and 9, the rubbing drive unit 14 operates the rubbing unit 13 by transmitting the rubbing drive source 17 including a motor or the like driven and controlled by the control unit 11 and the rotational power of the rubbing drive source 17. The rubbing drive unit 14 is provided on the base unit 15. The output shaft of the rubbing drive source 17 is provided along the vertical direction, and the power transmission unit 16 includes a gear case 25 having a worm gear that decelerates by changing the rotation direction of the output shaft of the rubbing drive source 17, and the worm gear. And a transmission shaft 26 that rotates about an axis that faces the left-right direction. The transmission shaft 26 is rotatably supported at one end side in the front-rear direction of the base portion 15 (the rear end portion in the present embodiment). In the present embodiment, the rubbing drive source 17 is composed of a motor, and is configured such that the rotation direction and rotation speed of its output shaft are variable by the control unit 11.

  The transmission shaft 26 is rotatably supported at both left and right end portions 15b and 15b of the base portion 15. More specifically, the transmission shaft 26 is attached to the annular first holders 27 and 27 of the both side portions 15b and 15b. The bearing shaft 28 is supported via a bearing 28 that is fitted on the outer periphery of the rotation shaft of the transmission shaft 26. One or a plurality of eccentric cams 29 are provided at positions corresponding to the rubbing portions 19 and 20 in the middle portion in the axial direction (left-right direction) of the transmission shaft 26. In this embodiment, there are two eccentric cams 29a connected to the pair of left and right outer rubbing portions 19 on the left and right sides, and two eccentric cams 29b connected to the intermediate rubbing portion 20 on the left and right sides. A cam 29 is provided.

  These eccentric cams 29 are formed in a disc shape having a thickness in the left-right direction, and a rotation axis is provided at a position away from the center of the geometric circle of the outer shape. Note that this rotational axis coincides with the axis of the transmission shaft 26. The rotating shaft core of the eccentric cam 29 has a through hole 29d penetrating in the left-right direction. By inserting the transmission shaft 26 into the through hole 29d, the eccentric cam 29 is supported by the transmission shaft 26. The cam 29 can rotate integrally with the transmission shaft 26. The outer eccentric cam 29a connected to the pair of left and right outer rubbing portions 19 has the same phase with respect to the rotation axis, and the outer eccentric cam 21a connected to the pair of left and right outer rubbing portions 19 and intermediate rubbing. The intermediate eccentric cam 29b connected to the portion 20 has different phases with respect to the rotation axis. In the present embodiment, the phases of the outer eccentric cam 29a and the intermediate eccentric cam 29b with respect to the rotation axis are different from each other by 180 degrees.

  The eccentric cams 29 are attached to the outer rubbing portion 19 and the intermediate rubbing portion 20 via an annular second holder 30 having an opening facing in the left-right direction. The second holder 30 is attached to the rubbing portions 19 and 20 by connecting means (not shown) such as bolts, and the eccentric cam 29 is loosely fitted in the annular second holder 30. A bearing 29 c is fitted on the outer peripheral portion of the eccentric cam 29.

  In addition, a rod-shaped guide shaft 31 having a left and right axis that guides the movement of the rubbing portion 13 with respect to the base portion 15 is supported on the other end portion in the front-rear direction of the base portion 15 (the front end portion in this embodiment). More specifically, the left and right end portions of the guide shaft 31 are supported by both side portions 15b and 15b of the base portion 15 and cannot rotate. The guide shaft 31 is attached to the other end side in the front-rear direction of the outer rubbing portion 19 and the intermediate rubbing portion 20 (the front end portion in the present embodiment) via the third holder 32. More specifically, The holder 32 is inserted through a guide hole 33 that opens in the left-right direction that is long in the front-rear direction. The third holder 32 is provided corresponding to each rubbing portion 13 (that is, corresponding to the pair of left and right outer rubbing portions 19 and 19 and the intermediate rubbing portion 20), and one guide shaft 31 is provided. It is inserted into a guide hole 33 of a third holder 32 provided in each rubbing portion 13 in a skewered manner. Accordingly, each rubbing portion 13 can move relatively in the front-rear direction along the longitudinal direction of the guide hole 33 within the range of the guide hole 33 while its front end side is restricted in rotational movement by the guide shaft 31. Yes. Note that the seat portion 3 may be arranged on the upper side of the main body frame 2 with the front and back reversed.

[Rubber operation]
Hereinafter, the operation of the rubbing portion 13 will be described with reference to FIG. FIG. 10 is a left side view of the seat portion 3 from which the base portion 15 is omitted, and is a view for explaining the operation of the rubbing portion 13.
When the rubbing drive source 17 is driven and its output shaft rotates, the rubbing drive unit 14 having the above-described configuration is interlocked with the rotation of the output shaft via the gear case 25 (one end side in the front-rear direction of the base unit 15). In the embodiment, the transmission shaft 26 provided at the rear end portion of the transmission shaft rotates about its axis, and an eccentric cam 29 attached to the left and right middle portion (midway portion in the axial direction) of the transmission shaft 26 rotates the transmission shaft 26. Revolves around the axis. Then, due to the revolution of the eccentric cam 29, the second holder 30 that supports the eccentric cam 29 moves circularly along the revolution track of the eccentric cam 29. On the other hand, a guide shaft 31 provided on the other end side in the front-rear direction of the base portion 15 (front end portion in the present embodiment) is inserted into a guide hole 33 provided in a third holder 32 provided in each rubbing portion 13. Therefore, the circular motion of the rubbing portion 13 itself is restricted despite the circular motion of the second holder 30. As a result, while the transmission shaft 26 makes one rotation, the rubbing portion 13 reciprocates by a predetermined distance in the front-rear direction and performs a revolving operation that tilts in the vertical direction.

  At this time, the fixed point 21A located substantially in the center when viewed from the side of the side portion 21 of the pair of left and right outer rubbing portions 19 circulates along a substantially elliptical orbit 21B that is long in the front-rear direction, The fixed point 21C located at the front end of the upper end 21 is circulated along a substantially elliptical track 21D that is longer than the track of the fixed point 21A. Further, since the bottom portion 22 of the outer rubbing portion 19 is formed integrally with the side portion 21, the bottom portion 22 tilts in the up-and-down direction during one reciprocation of the predetermined distance in the front-rear direction in conjunction with the rotation of the side portion 21. The lap motion is performed. The rubbing drive source 17 of the rubbing drive unit 14 is electrically connected to the control unit 11 via a drive circuit (not shown), and is output from the drive circuit based on a control signal from the control unit 11. The operation is controlled by an electric signal.

  Incidentally, as described above, the outer eccentric cam 29a attached to the outer rubbing portion 19 and the intermediate eccentric cam 29b attached to the intermediate rubbing portion 20 have a phase difference of 180 degrees. Accordingly, the outer rubbing portion 19 and the intermediate rubbing portion 20 during the rotation also move in opposite directions because the phases differ by 180 degrees. That is, when the outer rubbing portion 19 is moving to one side (rear) in the front-rear direction, the intermediate rubbing portion 20 is moved to the other side (front) in the front-rear direction, and one end side (rear end) in the front-rear direction of the outer rubbing portion 19 Part) is moved to one side (downward) in the vertical direction and the other side (front end) in the front / rear direction is moved to the other side (upward) in the vertical direction. The end portion) moves to the other side (upward) in the vertical direction, and the other end side (front end) in the front-rear direction moves to one side (downward) in the vertical direction.

[Configuration of pinching prevention mechanism]
Hereinafter, the pinching prevention mechanism will be described with reference to FIGS. FIG. 11A is a schematic front view of the seat portion 3 as viewed from the front, in which the front end portion of the outer rubbing portion 19 is lowered most and the front end portion of the intermediate rubbing portion 20 is raised most. FIG. 11B is a schematic front view of the seat portion 3 as viewed from the front, in which the front end portion of the outer rubbing portion 19 is raised most and the front end portion of the intermediate rubbing portion 20 is lowered most.

  As shown in FIGS. 7 and 11, the outer rubbing portion 19 extends downward from the inner end portion in the left-right direction of the opposed inner bottom surface 22a of the bottom portion 22 and the front and rear end portions, and has a predetermined dimension D1 in the vertical direction. It has the plate-shaped side wall 22b which has. Similarly to the outer rubbing portion 19, the intermediate rubbing portion 20 extends downward from the outer end portions in the left-right direction and the front and rear end portions of the left and right inner bottom surfaces 20aL and 20aR, and has a predetermined dimension D2 in the vertical direction. It has the plate-shaped side wall 20b which has. In the embodiment of the present invention, the predetermined dimension D1 and the predetermined dimension D2 are set to the same dimension, but may be different dimensions.

  As shown in FIG. 11A, in the state where the front end portion of the outer rubbing portion 19 is lowered most and the front end portion of the intermediate rubbing portion 20 is raised most, the lower end portion of the side wall 22b of the outer rubbing portion 19 starts from the intermediate rubbing portion 20. The distance D3 to the upper end of the side wall 20b (the opposed inner bottom surface 20a of the intermediate rubbing portion 20) is set to be smaller than the sum of the predetermined dimension D1 of the side wall 22b and the predetermined dimension D2 of the side wall 20b. Further, as shown in FIG. 11B, in the state where the front end portion of the outer rubbing portion 19 is most raised and the front end portion of the intermediate rubbing portion 20 is most lowered, the upper end portion (outer rubbing portion) of the side wall 22b of the outer rubbing portion 19 is obtained. The distance D4 from the opposed inner bottom surface 22a) of the part 19 to the lower end of the side wall 20b of the intermediate rubbing part 20 is set to be smaller than the sum of the predetermined dimension D1 of the side wall 22b and the predetermined dimension D2 of the side wall 20b.

  Accordingly, during the operation of the rubbing portion 13, the side surface of the side wall 22 b included in the outer rubbing portion 19 and the side surface of the side wall 20 b included in the intermediate rubbing portion 20 always overlap, and the bottom portion 22 of the outer rubbing portion 19 and the intermediate rubbing portion 19 are subjected to intermediate rubbing. It is possible to prevent the seat from being sandwiched between the portion 20. That is, a pinching prevention mechanism that prevents the user's seat from being pinched is configured by the side wall 22b of the outer rubbing portion 19 and the side wall 20b of the intermediate rubbing portion 20.

[Composition of footrest]
Hereinafter, the structure of the footrest 4 of the massage machine 1 which concerns on embodiment of this invention based on FIGS. 12-15 is demonstrated. 12 is a perspective view of the footrest 4, FIG. 13 is a bottom view of the footrest 4, FIG. 14 is a perspective view of the footrest 4 with a part of the rubbing portion 41 omitted, and FIG. It is the perspective view seen from the other direction of the footrest 4 which abbreviate | omitted the base part 15. FIG.

  As shown in FIGS. 12 and 15, the footrest 4 includes a rubbing portion 40 that performs rubbing massage on the side surface and the rear surface of the leg of the user, and a rubbing drive that drives the rubbing portion 40 to perform rubbing massage. And a base portion 42 that is provided at the front portion of the main body frame 2 via the base support portion 43 and supports the rubbing portion 40 and the rubbing driving portion 41. That is, the rubbing portion 40 and the rubbing driving portion 41 are rotatably supported by the main body frame 2 by fixing the base portion 42 to the main body frame 2 via the base support portion 43. Furthermore, the base part 42 is supported by the base support part 43 so as to be slidable in the vertical direction (longitudinal direction of the legs).

[Configuration of base section]
As shown in FIG. 14, the base portion 42 has a configuration in which the top and bottom and the front are opened by a plate-like bottom portion 42 a and plate-like side portions 42 b erected from both the left and right sides of the bottom portion 42 a. A rubbing portion 40 is movably supported on the left and right side portions 42 b of the base portion 42 via a power transmission portion 44. Further, a power transmission unit 44 and a rubbing drive source 45 configured by a motor or the like that drives the rubbing unit 40 via the power transmission unit 44 are supported on the bottom 42 a of the base unit 42.

[Configuration of rubbing part]
As shown in FIGS. 12 to 15, the rubbing portion 40 is supported by the base portion 42 via the power transmission portion 44, is connected to the power transmission portion 44, and is movable in the vertical direction and the front-rear direction. A pair of left and right outer rubbing portions 46 disposed on the outer portion of the left and right, and connected to the power transmission portion 44 are movable in the vertical direction and the front and rear direction, and between the pair of left and right outer rubbing portions 46 and 46. And an intermediate rubbing portion 47 disposed on the inner side portion of the leg.

  As shown in FIGS. 12 and 13, the outer rubbing portion 46 includes a plate-like side portion 48 having opposed inner side surfaces 48 a facing the left and right outer side surfaces of the leg, and the side portion 48 formed integrally with the side portion 48. A plate-like bottom portion 49 that extends from the rear end portion toward the left and right inner sides and has an opposed inner bottom surface 49a that faces the outer portion of the rear surface of the leg. The pair of left and right outer rubbing portions 46 are movably supported on both side portions 42 b and 42 b of the base portion 42 via a power transmission portion 44. The outer rubbing portion 46 is composed of a relatively hard member made of a synthetic resin blow-molded body or the like.

  A plurality of pairs of left and right air cells 8L and 8R are provided in the up and down direction (longitudinal direction of the legs) as massage parts on the opposing inner side surface 48a of the side portion 48 of the pair of left and right outer rubbing portions 46 and 46, respectively. The air cells 8L and 8R are connected to the air supply / exhaust device 10 via an air pipe (not shown), and can be expanded and contracted by air supply / exhaust. The pair of left and right air cells 8L and 8R are provided at positions corresponding to the outer side surfaces of the legs on the opposed inner side surface 48a, and are configured in a bellows shape so that the front side is developed and expanded with the rear side as a base. Accordingly, the pair of left and right air cells 8L and 8R expands in a direction opposite to each other and expands, the left air cell 8L presses the left leg from substantially the front, and the right air cell 8R presses the right leg from the substantially front. To do.

  The intermediate rubbing portion 47 includes a plate-like side portion 50 having opposing inner side surfaces 50a and 50a facing the inner side surfaces of both legs, and the side portion 50, and is formed integrally with the side portion 50 from the rear end portion of the side portion 50 to the left and right sides. Plate-like bottom portions 51 and 51 having opposed inner bottom surfaces 51a and 51a that extend toward the opposite sides and face the rear surfaces of both legs, respectively. The intermediate rubbing portion 47 is formed on both side portions 42b of the base portion 42, It is supported by 42b through the power transmission part 44 so that a movement is possible. The intermediate rubbing portion 47 is formed of a relatively hard member made of a synthetic resin blow molded body or the like.

  The opposed inner bottom surface 50a of the intermediate rubbing portion 47 is provided with a pair of left and right air cells 8l, 8r as a massage portion in the front-rear direction. The air cells 8l, 8r are provided with an air pipe (not shown). It is connected to the air supply / exhaust device 10 through the air supply / exhaust device 10 and can be expanded and contracted by air supply / exhaust. The pair of left and right air cells 8l and 8r are provided at positions corresponding to the legs on the opposed inner side surface 50a, and are configured in a bellows shape so that the front side develops and expands with the rear side as a base. Accordingly, the pair of left and right air cells 8l and 8r expands in directions opposite to each other and expands, the left air cell 8l presses the left leg from substantially the front, and the right air cell 8r presses the right leg from the substantially front. To do.

  The pair of left and right recesses 52 for accommodating the legs whose front and upper and lower ends are opened by the side portions 48 and 50 of the left and right outer rubbing portions 46 and 46 and the intermediate rubbing portion 47 and the bottom portions 49 and 51. 52, both side surfaces of both legs accommodated in the pair of left and right recesses 52, 52 are supported by the side portions 48, 50, and the rear surfaces of both legs are supported by the bottom portions 49, 51. The bottom 49 of the outer rubbing portion 46 and the bottom 51 of the intermediate rubbing portion 47 are arranged close to each other in the left-right direction so that the legs do not fall between the rubbing portions 46 and 47.

  As shown in FIGS. 4 and 13, the footrest 4 is integrally covered except for the base support portion 43 with a cover portion 53 whose surface is made of stretchable fabric or the like, and the rubbing portion 40 is formed. In addition to preventing exposure to the outside, the risk of the legs being caught between the rubbing portions 46 and 47 is reduced. That is, the cover portion 53 integrally covers the rubbing portion 40 and the base portion 42 constituted by the left and right paired outer rubbing portions 46 and the intermediate rubbing portion 47. Then, the cover portion 53 is engaged with an engaged portion 53c made of a hook-and-loop fastener or the like provided at an upper end portion of the cover portion 53 and an engaging portion 24c of the cover portion 24 that covers the seat portion 3 described above. It is connected to the part 24. In addition, a pair of left and right air cells 8B1 and 8Br as massage parts are provided inside the cover portion 53 located on the opposed inner bottom surfaces 49a and 51a of the bottom portion 49 and the bottom portion 51, respectively, straddling the opposed inner bottom surfaces 49a and 51a. The air cells 8Bl and 8Br are connected to the air supply / exhaust device 10 via an air pipe (not shown) and can be expanded and contracted by air supply / exhaust. Unlike the air cells 8L, 8R, 8l, and 8r described above, the air cells 8B1 and 8Br are provided inside the cover portion 53 having elasticity, so that the vertical movement (rubbing operation) of the rubbing portion 40 is not hindered.

[Configuration of rubbing drive unit]
Hereinafter, the configuration of the rubbing drive unit 41 will be described with reference to FIGS. 14 and 15.
As shown in FIGS. 14 and 15, the rubbing drive unit 41 operates the rubbing unit 40 by transmitting the rubbing drive source 45 composed of a motor or the like driven and controlled by the control unit 11 and the rotational power of the rubbing drive source 45. The rubbing drive part 41 is provided on the base part 42. The output shaft of the rubbing drive source 45 is provided along the vertical direction, and the power transmission unit 44 includes a gear case 54 having a worm gear that decelerates by changing the rotation direction of the output shaft of the rubbing drive source 45, and the worm gear. And a transmission shaft 55 that rotates about an axis that faces the left-right direction. The transmission shaft 55 is rotatably supported on one end side in the vertical direction of the base portion 52 (the lower end portion in the present embodiment). In this embodiment, the rubbing drive source 45 is composed of a motor, and is configured such that the control unit 11 can change the rotation direction and the rotation speed of its output shaft.

  The transmission shaft 55 is rotatably supported at both left and right end portions 52b and 52b of the base portion 52. More specifically, the transmission shaft 55 is attached to the annular first holders 56 and 56 of the both side portions 52b and 52b. The bearing shaft 57 is supported on the outer periphery of the rotating shaft of the transmission shaft 55. One or a plurality of eccentric cams 58 are provided at positions corresponding to the rubbing portions 46 and 47 in the middle portion in the axial direction (left-right direction) of the transmission shaft 55. In this embodiment, there are six eccentrics, that is, two left and right outer eccentric cams 58a connected to the left and right pair of outer rubbing portions 46, and two intermediate left and right intermediate eccentric cams 58b connected to the intermediate rubbing portion 47. A cam 58 is provided.

  These eccentric cams 58 have a disk shape with a thickness in the left-right direction, and a rotation axis is provided at a position away from the center of the geometric circle of the outer shape. This rotational axis coincides with the axis of the transmission shaft 55. The rotating shaft core of the eccentric cam 58 has a through hole 58d penetrating in the left-right direction. By inserting the transmission shaft 55 into the through hole 58d, the eccentric cam 58 is supported by the transmission shaft 55, and the plurality of eccentric shafts are arranged. The cam 58 can rotate integrally with the transmission shaft 55. The outer eccentric cam 58a connected to the pair of left and right outer rubbing portions 46 has the same phase with respect to the rotation axis, and the outer eccentric cam 58a connected to the pair of left and right outer rubbing portions 46 and the intermediate rubbing cam 58a. The intermediate eccentric cam 58b connected to the portion 47 has different phases with respect to the rotational axis. In the present embodiment, the phases of the outer eccentric cam 58a and the intermediate eccentric cam 58b with respect to the rotation axis are different from each other by 180 degrees.

  Further, these eccentric cams 58 are attached to the outer rubbing portion 46 and the intermediate rubbing portion 47 via an annular second holder 59 having an opening facing in the left-right direction. The second holder 59 is attached to the rubbing portions 46 and 47 by connecting means (not shown) such as bolts, and the eccentric cam 58 is loosely fitted in the annular second holder 59. A bearing 58 c is fitted on the outer periphery of the eccentric cam 58.

  Further, a rod-shaped guide shaft 60 having an axial core directed in the left-right direction that guides the movement of the rubbing portion 40 relative to the base portion 52 is supported on the other end portion in the vertical direction of the base portion 52 (the upper end portion in the present embodiment). More specifically, the left and right ends of the guide shaft 60 are supported by both side portions 52b and 52b of the base portion 52 so that the guide shaft 60 cannot rotate. The guide shaft 60 is attached to the other end side in the vertical direction of the outer rubbing portion 46 and the intermediate rubbing portion 47 (the upper end portion in the present embodiment) via the third holder 61. More specifically, The holder 61 is inserted through a guide hole 62 that is long in the vertical direction and opens in the horizontal direction. The third holder 61 is provided corresponding to each rubbing portion 40 (that is, corresponding to the pair of left and right outer rubbing portions 46 and 46 and the intermediate rubbing portion 47), and one guide shaft 60 is provided. The third holder 61 provided in each rubbing portion 40 is inserted into a guide hole 62 provided in a skewered manner. Accordingly, each rubbing portion 40 can move in the up and down direction along the longitudinal direction of the guide hole 62 within the range of the guide hole 62 while its upper end side is restricted in rotational motion by the guide shaft 60. Yes. The footrest 4 may be disposed upside down on the front side of the main body frame 2.

[Rubber operation]
Hereinafter, the operation of the rubbing section 40 will be described with reference to FIG. FIG. 16 is a left side view of the footrest 4 from which the base portion 42 is omitted, and is a view for explaining the operation of the rubbing portion 40.
When the rubbing drive source 45 is driven and its output shaft rotates, the rubbing drive unit 41 having the above-described configuration is linked to the rotation of the output shaft through the gear case 54 and is connected to one end in the vertical direction of the base unit 52 (the main shaft). In the embodiment, the transmission shaft 55 provided at the lower end portion rotates around its axis, and the eccentric cam 58 attached to the left and right midway portion (midway portion in the axial direction) of the transmission shaft 55 is the rotation shaft of the transmission shaft 55. Revolves around the core. Then, due to the revolution of the eccentric cam 58, the second holder 59 that supports the eccentric cam 58 moves circularly along the revolution trajectory of the eccentric cam 58. On the other hand, a guide shaft 60 provided on the other end in the vertical direction of the base portion 52 (upper end portion in the present embodiment) is inserted into a guide hole 62 provided in a third holder 61 provided in each rubbing portion 40. For this reason, the circular motion of the rubbing portion 40 itself is restricted despite the circular motion of the second holder 59. As a result, while the transmission shaft 55 makes one rotation, the rubbing portion 40 reciprocates once in a vertical direction by a predetermined distance and performs a revolving operation that tilts in the front-rear direction.

  At this time, the fixed point 48A positioned substantially at the center when viewed from the side of the side portion 48 of the pair of left and right outer rubbing portions 46 circulates along a substantially elliptical orbit 48B that is long in the vertical direction. The fixed point 48C located at the lower front end of 48 will circulate along a substantially elliptical track 48D that is longer than the track of the fixed point 48A. Further, since the bottom 49 of the outer rubbing portion 46 is formed integrally with the side portion 48, the bottom portion 49 tilts in the front-rear direction during one reciprocation in the vertical direction in conjunction with the circulation of the side portion 48. A circular operation is performed. The rubbing drive source 45 of the rubbing drive unit 41 is electrically connected to the control unit 11 via a drive circuit (not shown), and is output from the drive circuit based on a control signal from the control unit 11. The operation is controlled by an electric signal.

  By the way, as described above, the outer eccentric cam 58a attached to the outer rubbing portion 46 and the intermediate eccentric cam 58b attached to the intermediate rubbing portion 47 have a phase difference of 180 degrees. Accordingly, the outer rubbing portion 46 and the intermediate rubbing portion 47 during the rotation also move in opposite directions because the phases differ by 180 degrees. That is, when the outer rubbing portion 46 is moving to one side (downward) in the vertical direction, the intermediate rubbing portion 47 is moved to the other side (upward) in the vertical direction and one end in the vertical direction (lower end portion) of the outer rubbing portion 46. ) Is moved to one side (rear) in the front-rear direction, and the other end (upper end) in the vertical direction is moved to the other side (front) in the front-rear direction. ) Moves to the other side (front) in the front-rear direction, and the other end (upper end) in the up-down direction moves to one side (rear) in the front-rear direction.

[Configuration of pinching prevention mechanism]
Hereinafter, the pinching prevention mechanism will be described with reference to FIGS. 13 and 17. FIG. 17A is a schematic bottom view of the footrest 4 as viewed from below, in which the lower end portion of the outer rubbing portion 46 is most retracted and the lower end portion of the intermediate rubbing portion 47 is most advanced. FIG. 17B is a schematic bottom view of the footrest 4 as viewed from below, in which the lower end portion of the outer rubbing portion 46 is most advanced and the lower end portion of the intermediate rubbing portion 47 is most retracted.

  As shown in FIGS. 13 and 17, the outer rubbing portion 46 extends rearward from the inner end portion in the left-right direction of the opposed inner bottom surface 49a of the bottom portion 49 and the upper and lower end portions, and has a predetermined dimension d1 in the front-rear direction. It has the plate-shaped side wall 49b which has. Similarly to the outer rubbing portion 46, the intermediate rubbing portion 47 extends rearward from the outer end portion in the left-right direction and the upper and lower end portions of each of the opposed inner bottom surfaces 51 a, 51 a of the bottom portion 51. Has a plate-like side wall 51b having a predetermined dimension d2. In the embodiment of the present invention, the predetermined dimension d1 and the predetermined dimension d2 are set to the same dimension, but may be different dimensions.

  As shown in FIG. 17A, in the state where the lower end portion of the outer rubbing portion 46 is most retracted and the lower end portion of the intermediate rubbing portion 47 is most advanced, the intermediate rubbing portion extends from the rear end portion of the side wall 49b of the outer rubbing portion 46. The distance d3 to the front end portion of the 47 side wall 51b (the opposed inner bottom surface 51a of the intermediate rubbing portion 47) is set to be smaller than the sum of the predetermined dimension d1 of the side wall 49b and the predetermined dimension d2 of the side wall 51b. In addition, as shown in FIG. 17B, in the state where the lower end portion of the outer rubbing portion 46 is most advanced and the lower end portion of the intermediate rubbing portion 47 is most retracted, the front end portion (outer rubbing portion) of the side wall 49b of the outer rubbing portion 47 is obtained. The distance d4 from the opposed inner bottom surface 49a) of the portion 46 to the rear end of the side wall 51b of the intermediate rubbing portion 47 is set to be smaller than the sum of the predetermined dimension d1 of the side wall 49b and the predetermined dimension d2 of the side wall 51b.

  Accordingly, during the operation of the rubbing portion 40, the side surface of the side wall 49 b included in the outer rubbing portion 46 and the side surface of the side wall 51 b included in the intermediate rubbing portion 47 always overlap, and the bottom portion 49 of the outer rubbing portion 46 and the intermediate rubbing portion are intermediately rubbed. It is possible to prevent the legs from being sandwiched between the bottom portion 51 of the portion 47. That is, the side wall 49b of the outer rubbing portion 46 and the side wall 51b of the intermediate rubbing portion 47 constitute a pinching prevention mechanism that prevents the user's leg from being pinched.

[Treatment pattern]
Hereinafter, based on FIGS. 18-20, the treatment pattern of the massage machine 1 which concerns on embodiment of this invention is demonstrated. 18 is an operation explanatory diagram of each air cell 7 and the rubbing drive source 17 in the treatment pattern 1, FIG. 19 is an operation explanatory diagram of each air cell 7 and the rubbing drive source 17 in the treatment pattern 2, and FIG. FIG. 11 is an operation explanatory diagram of each air cell 7 and 8 and each rubbing drive source 17 and 45 in the treatment pattern 3. 18 and 19, the vertical axis indicates the ON / OFF state of the valve of the air supply / exhaust device 10 and the rubbing drive source 17, and the horizontal axis indicates time. In FIG. 20, the vertical axis indicates the ON / OFF state of the valve of the air supply / exhaust device 10 and the rubbing drive sources 17 and 45, and the positions of the rubbing portions 13 and 40, and the horizontal axis indicates time.

  As shown in FIG. 18, the treatment pattern 1 is a pattern in which rubbing massage is performed by operating the rubbing portion 13 in a state where the seat of the user is pressed by the air cells 7L, 7R, 7l, and 7r. The control unit 11 expands the air cells 7L, 7R, 7l, and 7r, and drives the rubbing drive source 17 while maintaining the expansion of the air cells. According to this treatment pattern 1, since the rubbing portion 13 is operated in a state where the air cells 7L, 7R, 7l, and 7r are in contact with the seat, the rubbing massage can be favorably applied to the side surface and the rear surface of the seat.

  As shown in FIG. 19, the treatment pattern 2 performs the rubbing massage by operating the rubbing portion 13 in a state where the seat of the user is pushed to the left or right by the air cells 7L, 7R, 7l, 7r and tilted. It is a pattern. In this treatment pattern 2, the air cells 7L and 7r that press the seat in the right direction are controlled to expand and contract in synchronization, and the air cells 7R and 7l that press the seat in the left direction are controlled to expand and contract in synchronization. The control unit 11 drives the rubbing drive source 17 in a state where the air cells 7L and 7r are inflated in synchronization and the posture of the user is tilted to the right. Subsequently, the air cells 7L and 7r are contracted synchronously, and at the same time, the air cells 7R and 7l are synchronously expanded and the rubbing drive source 17 is driven in a state where the posture of the user is tilted to the left. According to this treatment pattern 2, rubbing massage can be applied to the side surface and the rear surface of the seat while twisting the upper body of the user.

As illustrated in FIG. 20, the treatment pattern 3 includes a rubbing portion in a state where the seat of the user is pressed by the air cell 7 of the seat portion 3 and the leg of the user is pressed by the air cell 8 of the footrest 4. In this pattern, the 13 side portions 21 and the side portion 48 of the rubbing portion 40 are brought close to and away from each other. The control unit 11 expands the air cells 7 and 8 and maintains the expansion of these air cells, so that the side portion 21 of the rubbing portion 13 is located in the foremost position based on the first sensor S1 and the second sensor S2. Sometimes, the rubbing drive source 17, the side 48 of the rubbing portion 40 is located at the uppermost position, and the side portion 48 of the rubbing portion 13 is located at the rearmost position, so that the side portion 48 of the rubbing portion 40 is located at the lowermost position. 45 is driven. According to this treatment pattern 3, since the side portion 21 of the rubbing portion 13 and the side portion 48 of the rubbing portion 40 can be brought close to and away from each other, a stretching operation is performed to extend the portion from the seat to the leg. The rubbing massage can be applied to the side surface and the rear surface of the seat. In particular, when the treatment pattern 3 is performed with the footrest 4 shown in FIG. 2 raised, the movement directions of the rubbing portion 13 and the rubbing portion 40 are both in the front-rear direction, and the footrest 4 shown in FIG. 1 is lowered. A larger stretch feeling can be obtained with respect to the part from the seat to the leg than to do.
In addition, as shown in FIG. 2, the rubbing drive source 17 may be driven and controlled to operate the rubbing portion 13 in a state where the footrest 4 is raised and the legs of the user are pressed by the air cell 8 of the footrest 4. . At this time, the rubbing drive source 45 may be driven and controlled so that the rubbing section 40 is operated together with the rubbing section 13. According to this operation, the seat can be moved up and down in a state where the leg is constrained, so that a stretching operation for extending the leg can be performed.

[Other Embodiments of Sitting]
Hereinafter, based on FIG. 21, the structure of the seat part 70 which concerns on other embodiment of this invention is demonstrated. FIG. 21 is a perspective view of a seat 70 according to another embodiment of the present invention. In addition, below, about the structure same as the seat part 3 mentioned above, the same number is attached | subjected and description is abbreviate | omitted. That is, the configuration different from the seat portion 70 and the seat portion 3 described above is only the shape of the intermediate rubbing portion 71, and the other configurations are the same as the seat portion 3. In FIG. 21, the massage part, the second side part 35, and the hinge part 36 are not shown in view of visibility.
As shown in FIG. 21, the intermediate rubbing portion 71 is configured in a plate shape having an opposed inner bottom surface (upper surface) 71a facing the inner portion of the lower surface of the seat. The opposed inner bottom surface 71a is inclined upward as it goes to the left and right central side, and is inclined downward as it goes backward from a substantially central portion in the front-rear direction. The configuration of the opposing inner bottom surface 71a will be described in detail. The front portion of the opposing inner bottom surface 71a has a left inner bottom surface 71aL and a right inner bottom surface 71aR which are distributed to the left and right by a separation hill 72 whose left and right central portions are slightly raised upward. The rear portion of the opposed inner bottom surface 71a has a rear inner bottom surface 71aB that is a flat surface on which the separation hill 72 is not formed. The left and right thighs can be distributed and positioned to predetermined left and right positions of the seat 70 by the separation hill 72. The vertical dimension of the separation hill 72 is set to be sufficiently smaller than the vertical dimension of the side part 21 provided in the outer rubbing part 19 so that it does not get in the way when the seat is placed on the seat part 70. The opposed inner bottom surface 71a of the intermediate rubbing portion 71 can be said to be substantially flat as a whole. The intermediate rubbing portion 71 is supported on both side portions 15 b and 15 b of the base portion 15 through the power transmission portion 16 so as to be movable. The intermediate rubbing portion 71 is composed of a relatively hard member made of a synthetic resin blow-molded body or the like.

The massage machine of the present invention is not limited to the illustrated form, and may be of other forms within the scope of the present invention.
For example, with respect to the configuration of the side portion 21 of the outer rubbing portion 19, the second side portion 35 may be omitted and only the first side portion 34 may be configured, and the air cell 7 may be provided on the opposing inner surface of the first side portion 34. . In this case, it is preferable to set the vertical dimension (height dimension) of the first side portion 34 to be larger than the vertical dimension (height dimension) of the thigh of the user. Moreover, it is preferable to comprise the 1st side part 34 and the bottom part 22 separately, and to comprise the 1st side part 34 so that rotation with respect to the bottom part 22 via a hinge part etc. is possible.
Moreover, about the structure of the rubbing parts 13 and 40 which the seat part 3 and / or the footrest 4 have, it is good also as a structure which abbreviate | omits the intermediate rubbing parts 20 and 47 and has only the outer rubbing parts 19 and 46. In this case, the rubbing portion 13 will be described as an example. The pair of left and right outer rubbing portions 19 and 19 are preferably reciprocated in the front-rear direction at different phases, and the rubbing portion 40 is also the same.
Moreover, it is good also as a treatment element which replaces with the air cells 7 and 8 as a massage part provided in the seat part 3 and / or the footrest 4, for example, performs a roller, a vibrator, or itching or hitting.

Further, the phases of the outer eccentric cam 29a and the intermediate eccentric cam 29b with respect to the rotation axis are not limited to 180 degrees and may be different at other angles.
The left and right outer eccentric cams 29a and the intermediate eccentric cam 29b have the same phase with respect to the rotational axis, and the left and right outer eccentric cams 29a and the intermediate eccentric cam 29b have a phase different by 180 degrees, for example. Also good. In this case, the seat of the user can be moved up and down alternately left and right, and the body can be swung left and right. Further, by performing this operation in a state where the footrest is suspended (see FIG. 1) and the air cell 8 is inflated, a stretch for alternately extending the legs of the user can be applied.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a massage machine that can perform a rubbing massage on a user's seat.

1 Massage machine 7-9 Massage part (air cell)
13, 40 Rubbing portion 19, 46 Outer rubbing portion 20, 47 Intermediate rubbing portion 21, 48, 50 Side portion 22, 49, 51 Bottom portion

Claims (7)

In a massage machine that can place at least the patient's seat,
A pair of left and right outer rubbing portions that reciprocate in the front-rear direction and have sides facing the side surfaces of the seat;
An intermediate rubbing portion that is provided between the pair of outer rubbing portions and is inclined upward as the surface facing the lower surface of the seat is substantially flat or toward the left and right center side;
A rubbing portion configured to rub the seat and massage,
A massage machine characterized by comprising:   The massage machine according to claim 1, further comprising a massage part that is provided in the intermediate rubbing part and presses a seat toward the side part from below.   The massage machine according to claim 1, further comprising a massage part that is provided on a side part of the outer rubbing part and presses the seat from substantially above. The massage part provided on the side part of the outer rubbing part is composed of an air cell that expands on the upper side with the lower side as a base,
The massage machine according to any one of claims 1 to 3, wherein the massage part provided in the intermediate rubbing part is configured by an air cell in which the left and right inner sides develop with the left and right outer sides as bases.   The massage machine according to any one of claims 1 to 4, wherein the intermediate rubbing portion reciprocates in the front-rear direction with a phase different from the reciprocating motion of the outer rubbing portion in the front-rear direction. The outer rubbing portion has a bottom portion facing the lower surface of the seat,
The massage machine according to any one of claims 1 to 5, wherein the thigh portion of the seat is supported by both the bottom portion of the outer rubbing portion and the upper surface of the intermediate rubbing portion. In a massage machine that can place at least the patient's seat,
A rubbing portion that reciprocates in the front-rear direction and has a side portion that opposes the side surface of the seat and a bottom portion that opposes the lower surface of the seat;
A massage part that presses the seat toward the side part from below;
A massage machine characterized by comprising:

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