JP2003038597A - Massage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a massage device usable without reducing massage effect by the physique or posture of a user. SOLUTION: The massage device is constituted so that a roller opening 26 extending in the extension direction of the backbone is provided to the support surface 2 of a back part 1 and a side view meandering track 19 following the physiological curve of the backbone is built in the back part 1 and a finger- pressure unit 3 is formed by attaching a finger-pressure roller 21 to a finger- pressure air cell expanded and contracted toward the roller opening 26 so that the finger-pressure roller 27 goes in and out freely with respect to the roller opening 26 and a motor 20 operated according to an operation control part 17 moves the finger-pressure unit 3 forwardly and rearwardly along the meandering track 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massage device that utilizes air pressure to provide an appropriate acupressure effect.

[0002]

2. Description of the Related Art A massage device generally used in the past is
It has a chair-like appearance and has a back part having a support surface that is in contact with the back of the human body, a finger pressure unit that reciprocates in the back part, an operation control part of the finger pressure unit, and a reciprocating drive part. It is a composition. As a specific acupressure unit, using an electric motor as a power source, the rotational movement of the electric motor is converted into a linear movement to obtain acupressure movement, or the rotational movement of the electric motor is converted into a reciprocating movement by a cam to perform a striking movement. There are things that will happen. The linear momentum of the acupressure movement and the width of the reciprocating movement of the tapping movement are fixed, or they can be appropriately adjusted by changing the output of the electric motor or changing the gears.

[0003] In such a massage device using mechanical drive, acupressure and tapping motions are generally too strong, and some people may feel pain. On the other hand, massage devices that utilize air pressure have been proposed for the purpose of achieving a more appropriate acupressure effect. For example,
Japanese Patent No. 2759622 "Acupressure device" is an acupressure device that attaches the acupressure roller of the acupressure unit to the rod tip of the pneumatic cylinder and presses the acupressure roller against the human body to apply acupressure while hitting the human body. Is proposed. Unlike mechanical drive, the pressing pressure of the acupressure roller can be adjusted by elasticity of air in addition to the linear momentum to obtain an appropriate acupressure motion (patting motion in this patent) for each person and enhance the massage effect. .

[0004]

As is apparent from the above, the massage effect depends on the movement of the acupressure contributing portion of the acupressure unit, for example, the acupressure roller. However, in reality, the desired massage effect cannot always be obtained depending on the physique and posture of the user who uses the massage device. Since such a decrease in the massage effect due to the physique and posture of the user is just a problem for the user,
In the past, no particularly aggressive technical solution was sought. For example, in a chair-type massage device, the support surface in contact with the back of the human body is enlarged to secure the reciprocating range of the acupressure unit that can be adjusted according to the physique in advance, or to improve the sitting comfort as a chair. The posture of the person was kept constant.

However, even if the reciprocating range of the acupressure unit is expanded, it is merely the adjustment of the acupressure range according to the height of the user, and there is little work to prevent the reduction of the massage effect. Also, even if you improve the sitting comfort as a chair,
That cannot be a factor that directly leads to improvement of the massage effect. Therefore, a massage device that can be used without decreasing the massage effect depending on the physique and posture of the user was examined. Also, although not directly,
Aiming to improve the feeling of use that leads to improved massage effects,
Especially, the calmness was examined.

[0006]

[Means for Solving the Problems] As a result of examination, a seat portion on which a user sits, a back portion supported by the seat portion and supporting the user's back, and a shiatsu portion while reciprocating in the back portion are provided. In a massage device including an acupressure unit to be projected and retracted, an operation control unit of the acupressure unit, a reciprocating drive unit, and a retractable power unit of the acupressure unit, a roller opening extending in the extending direction of the spine is provided on the support surface of the back, The side view meandering track that follows the physiological curve of the spine is built in the back part, and the acupressure unit is attached with an acupressure roller to the acupressure air cell that expands and contracts toward the roller opening, and the acupressure roller can be freely retracted from the roller opening, A massage device has been developed in which a reciprocating drive unit that operates according to an operation control unit reciprocates the acupressure unit along a meandering orbit. In the massage device of the present invention, quietness is enhanced by using air pressure as a basic power system.

The massage device of the present invention (1) follows the meandering trajectory so that the spine is in a natural state = physiologically curved, and (2) the pressing pressure is adjusted to the back with the physiologically curved spine. A better massage effect is obtained by applying acupressure using the available air pressure. Usually, since the back supporting surface in contact with the back follows the meandering trajectory, it may be a flat surface or a curved surface following the meandering trajectory. Here, the "physiological curve" of the spine means that the upper end (neck) of the spine curves forward.
(Foreshore), slightly elevated from the middle to the upper part (so-called back part) to the rear (upward), and curved back at the waist.
Side view shape (front bay), S-shape (front bay-back bay-front bay)
It is said to be the ideal posture as a human posture. The massage device of the present invention realizes a higher massage effect than before by performing acupressure using comfortable air pressure in a state where the spine is in such an ideal posture.

When the support surface follows a meandering trajectory, externally, a convex surface (referred to as head convex surface) and a concave surface (referred to as back concave surface) are formed in the vicinity of supporting the head (or neck). ,
From the waist to the bottom, it becomes a continuous curved surface with convex and concave surfaces that again become convex (waist convex surface). As a matter of course, the meandering orbit also draws a meander which is convex corresponding to the convex surface of the head, concave corresponding to the concave back surface, and convex corresponding to the convex waist surface. Here, it is preferable that the convex surface of the head is higher than the convex surface of the waist, because the head is relatively high and the user can feel secure. Even if there is a difference in height between the users, the slope will rise from the concave waist to the convex head, so any user can achieve a physiological curve by placing his back on the support surface. it can.

As described above, when the supporting surface provided with the roller opening and the meandering trajectory along which the finger-pressure unit is parallel are S-shaped in side view, the protrusion amount of the finger-pressure roller protruding from the roller opening is substantially within the reciprocating range. Can be even. In the massage device of the present invention, the pressing pressure can be adjusted by the air pressure of the acupressure air cell (actually, the pressure of the pressurized air supplied is constant and is adjusted by the supply time). The amount of protrusion of the basic acupressure roller is substantially equal in the reciprocating range, but preferably in the range corresponding to the provisional ribs of the human body (eighth rib to twelfth rib),
A soft massage range with a small amount of protrusion is recommended.

The acupressure unit, when it is assumed that the reciprocating range moves intermittently at an equal pitch or an unequal pitch, if the reciprocating range, the reciprocating amount or the pitch interval is changed according to the body part of the human body or the height of the individual, the meandering orbit. It is possible to make the acupressure roller appear and disappear by adjusting an appropriate range or an appropriate position thereof to the acupressure target position. In this case, the soft massage range is also vertically displaced. In theory, it is sufficient to provide the meandering track with one row for the acupressure unit, but in consideration of structural strength and posture stability of the acupressure unit, the acupressure units are provided in two rows and the acupressure units are supported by a double-supported beam type Good to do. In addition, the roller openings are basically provided in two rows, and the acupressure rollers are projected from the respective rows. In this case, since the two acupressure rollers need to appear in and out in synchronism with each other, only one acupressure air cell may be used. However, in order to exert sufficient pressing force, one acupressure air cell should be provided for each acupressure roller. It is better to provide it. That is, the acupressure unit has two acupressure air cells and acupressure rollers as a set.

When such a meandering orbit is used, the meandering orbit is a bar member that slides or rolls the support portion of the acupressure unit, and the direction in which the acupressure roller is projected or retracted is substantially in the normal direction of the meandering orbit. A configuration can be shown in which the acupressure unit smoothly reciprocates while maintaining. Further, the support portion of the acupressure unit is composed of a guide roller and a receiving roller for sandwiching the rod material of the meandering orbit, and the receiving roller is pivotally attached to a swing arm biased in the rotation direction toward the guide roller, and the guide roller is provided. Also, by making the interval between the receiving rollers adjustable, it is possible to show a configuration in which the withdrawal direction of the acupressure roller can be swung about the normal direction of the meandering orbit.

[0012] Here, in order to smoothly reciprocate the acupressure unit along the meandering orbit, a drive system for converting the power of the reciprocating driving unit into a moving force along the meandering orbit is required. Therefore, in the present invention, the reciprocating driving unit of the acupressure unit is meandered by rotating the driven roller, which is arranged at both ends of the meandering track, and the flexible drive belt wound around the driving roller from the acupressure unit forward or reverse by the driving roller. It was decided to reciprocate this acupressure unit along the orbit. In the acupressure unit in which the rod member is sandwiched by the rolling rollers as described above, since the moving force given by the flexible drive belt always acts in the tangential direction to the meandering trajectory, the acupressure unit can be smoothly moved. . The flexible drive belt
It plays a role in fixing the position of the acupressure unit when stationary, and realizes reliable power transmission that does not depend on the position of the meandering track when moving. The reciprocating driving unit rotationally drives the driving roller via a driving gear or directly. Here, the position control of the acupressure unit can be easily realized by monitoring and counting the rotation amount of the drive gear or the drive roller.

In the massage device of the present invention, the massage effect is enhanced by bringing the spine into a physiologically curved state. As a result, it is possible to expect a massage effect on the lower back (near the buttocks), which was difficult to achieve in the past with shiatsu. Therefore, in the present invention, a shaft mounting support portion of the back portion is provided rearward of the rear edge of the seat portion, and the back portion meanders above the shaft mounting support portion.
An operation control section of the acupressure unit below the shaft support section,
A reciprocating drive part or a power-in / out power part for the acupressure part is built in so that the acupressure unit can be lowered to near the intersection of the seat part and the back part. Normally, the operation control unit of the acupressure unit, the reciprocating drive unit, and the retractable power unit of the acupressure unit are integrally incorporated in the back portion. The operation control unit, the reciprocating drive unit, and the retractable power unit are positioned.

The position of the acupressure roller in the width direction can be realized by making the meandering track meander in the width direction, but it cannot be adjusted for each user. Therefore, the acupressure air cell of the acupressure unit is a width air cell that expands against the urging means toward one side in the width direction intersecting the reciprocating direction of the acupressure unit toward the other side and the other side toward the other side. Is provided, and the position of the acupressure air cell in the width direction can be adjusted by adjusting the air pressure of the width air cell. Conventionally known mechanical driving means can be used in place of the width air cell, but the quietness is improved by using the width air cell. Here, the position adjustment of the finger pressure air cell in the substantially width direction means the position adjustment of the finger pressure roller in the substantially width direction. The air pressure of the width air cell is basically fixed after the finger pressure air cell is adjusted in the substantially width direction, and the finger pressure unit is moved while maintaining the width. For example, when the air pressure of the width air cell is changed in association with the expansion and contraction of the finger pressure air cell, the finger pressure can be applied while changing the finger pressure target position in the substantially width direction.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 is a side view of a massage device to which the present invention is applied, FIG. 2 is a circuit diagram of the massage device, FIG. 3 is a front view of a back portion 1, FIG. 4 is a front view of a back portion excluding a supporting surface 2, and FIG. Sectional drawing, FIG. 6 is a sectional view showing the inside of the acupressure unit 3 excluding the surface, FIG. 7 is a side view of the acupressure unit 3, and FIG. 8 is a sectional view showing the inside of the acupressure unit 3 except the side surface. 9 is a side view showing the swinging mode of the acupressure unit 3, and FIG. 10 is a sectional view corresponding to FIG. 6 showing the adjustment of the acupressure air cell 4 in the width direction.

As shown in FIG. 1, the massage device of this embodiment has a seat portion 6 fixed to a main frame 5, and a back portion 1 standing upright and tiltable on a shaft supporting portion 7 at the rear edge of the seat portion 6. It has a shaft-mounted structure. The main frame 5 has a universal caster 8 attached to the rear end of the main pipe bent in an arc shape, and foldable support legs 9 are provided in front of the main pipe. Accordingly, the massage device can be stably fixed in position if the support leg 9 is grounded, and can be easily moved according to the universal caster 8 by lifting the support leg 9. Motor (reciprocating drive) 20 and compressor
The power source of the (projecting / retracting power unit) 21 is a household power supply, and the AC adapter 14 extends through the operation control unit 17.

The seat portion 6 is a cushion formed of a curved surface which is provided on the main frame 5 so as to extend in front of and behind the supporting legs 9, and allows the user's buttocks to be relatively depressed by sitting so that the spine easily follows the physiological curve. I have to. At the front edge of the seat portion 6, a leg rest 10 is attached to the main frame 5 so that it can be freely taken in and out. The shaft support 7 is provided on the main frame 5 near the rear edge of the seat 6. In the massage device of this example, the back portion 1 and the support legs 9 can be folded so as to be stacked on the main frame 5, thus facilitating storage and carrying.

The electric wirings and air ducts 11 and 12 of the respective parts constituting the massage device have a structure as shown in FIG. 2, and are basically the same as those of the conventional massage device except for the power structure mainly composed of air pressure. It has the same configuration as. Shiatsu unit 3
Has a pair of left and right acupressure air cells 4, 4, and the inside of each acupressure air cell 4 is directed inward.
A diaphragm (width air cell) 13 for pushing is provided (see FIGS. 4, 6 and 8). Compressor in use
(Emergence power unit) 21 is always in operation and each air cell 4, 1
Solenoid valves 15 and 16 for connecting and disconnecting the air pipelines 11 and 12 connected to 3
The expansion and contraction of the air cells 4 and 13 are thereby carried out. The air pressure conduits 12 are provided in the finger pressure air cells 4 in order to quickly supply the air pressure necessary for expansion to the finger pressure air cells 4. Since it is not necessary to rapidly supply air to the diaphragm 13 that adjusts the widthwise positions of the two acupressure air cells 4, 4, the left and right air cells are shared in order to suppress the number of air pipelines. The solenoid valves 15 and 16 are controlled by the operation control unit 17, and the operation control unit 17 is operated by the remote controller 18 used by the user.

As shown in FIG. 3, FIG. 4 and FIG. 5, the back part 1 has a meandering track 19 above the shaft support 7 and an operation controller 17 of the acupressure unit 3 below the shaft support 19. A motor (reciprocating drive unit) 20 and a compressor (projecting / retracting power unit) 21 are built in, and the whole is covered with a cushion material 22. The support surface 2 consists of a continuous convex head surface 23, a concave back surface 24, and a convex waist surface 25 that follow the physiological curve of the spine. The roller opening 26 is provided on the support surface 2 so as to extend in the direction in which the spine extends, and reciprocates along the meandering track 19 built in the back so that the left and right acupressure rollers 27, 27 appear and disappear from the roller opening 26. To do. Figure 5
Inside, the roller opening 26 is wide according to the adjustment range of the acupressure air cell 4 in the width direction, but a cushion material for wrapping the back portion 1
22 (see FIG. 5) protrudes from both sides of each roller opening 26, and thus is externally closed.

As shown in FIGS. 4 and 5, the meandering track 19 is a straight rod when viewed from the front and a substantially S-shaped meandering rod when viewed from the side, and is also made of a meandering rod. It is attached to the reinforcing frame 28. In this example, the acupressure rollers 27,2
The interval of 7 is the acupressure air cell 4 in the acupressure unit 3,
Although the position is controlled by the position in the width direction of 4, the meandering orbit 19 may be meandered in the width direction to partially change the positions in the width direction of the acupressure rollers 27, 27. The reinforcing frame 28 is a skeleton that enhances the structural strength of the back portion 1 to the last, but when it is configured so as to surround the acupressure unit 3 from the left and right, it also has a role as a protection member for the acupressure unit 3. Further, since the reinforcing frame 28 meanders in parallel with the meandering track 19,
A similar load is applied to the reinforcing frame 28 and the meandering track 19, so that the biasing of the meandering track 19 can be prevented.

As shown in FIG. 7, the acupressure unit 3 is provided with two upper and lower guide rollers 29, 30 and a receiving roller 31 (supporting portion) on the left and right of the acupressure unit body 32, and the rollers 29, 3 are provided.
0 and 31 sandwich the meandering orbit 19. In this example, as shown in FIG. 9, the receiving roller 31 is axially attached to the swing arm 34 biased in the rotational direction by the coil spring 33 toward the upper guide roller 29, and the upper guide roller 29 and the receiving roller 30 are attached. The interval between the two is freely adjustable so that the withdrawal direction of the acupressure roller 27 can be swung about the normal direction of the meandering track 19. The swing of the acupressure unit 3 has a role of releasing an excessive pressing force by the acupressure roller 27, so that a better massage effect can be obtained.

The acupressure unit 3 includes a driven roller 35 and a driving roller 36 which are arranged near the upper and lower ends of the meandering track 19, respectively.
The drive roller 36 connected to the motor 20 revolves along the meandering orbit 19 as the drive roller 36 connected to the motor 20 is rotated forward or backward to feed or rewind the flexible drive belt 37. As is clear from FIG. 5, the flexible drive belt 37 is linear with respect to the meandering track 19, but can smoothly reciprocate the acupressure unit 3 along the meandering track 19 and is flexible. Since the sex drive belt 37 pulls the acupressure unit 3 substantially equally from the upper and lower sides, there is an advantage that the acupressure unit 3 is easily positioned in the reciprocating direction and the positional stability is enhanced.

The position of the acupressure unit 3 is grasped by the operation control unit 17 by counting the amount of rotation of the motor 20 constituting the reciprocating drive unit by the rotary encoder 38. The count value of the rotary encoder 38 is the upper and lower limit switches 3 arranged above and below the maximum reciprocating range.
9,40 and shoulder position switch 41 defined for each user (see Fig. 2)
When the acupressure unit 3 comes into contact with, the value is set to 0 (zero) or the maximum value, and the displacement of the acupressure unit 3 during use is corrected. Although one shoulder position switch 41 is shown as a representative in FIG. 2, a plurality of shoulder position switches 41 are usually installed according to the height of the user. The motor 20 is controlled by the operation control unit 17, and the operation control unit 17 is operated by the remote controller 18 used by the user.

As shown in FIGS. 6 and 8, the finger-pressure air cell 4 is housed in the unit case 42 and housed in the finger-pressure unit body 32 so as to be movable in the width direction for each unit case 42. An elevating surface 43 is attached to the upper surface of the acupressure air cell 4, and the acupressure roller 27 is axially attached to the tips of the columns 44, 44 standing from the elevating surface 43. As a result, when the acupressure air cell 4 is expanded and contracted, the elevating surface 43 moves up and down within the unit case 42, and the acupressure roller 27 projects in and out of the roller opening 26. Shiatsu air cell 4
The direction and range of expansion and contraction of the are regulated by the periphery of the elevating surface 43 that slides or abuts the wall surface of the unit case 42.
The air pipe line 11 made of a flexible pipe does not shift its position regardless of expansion and contraction of the acupressure air cell 4.
Is connected to the acupressure air cell 4 from the bottom side.

A unit case 42 accommodating the acupressure air cell 4
Is a diaphragm (width air cell) 13 that expands inward on the outside, and a spiral spring 4 as an outward biasing means on the inside.
5 are arranged to achieve positioning in the width direction by balancing the two. As shown in FIG. 6, when the diaphragm 13 is contracted, the bias of the spiral spring 45 is superior,
The acupressure air cell 4 according to the unit case 42 is located outside and the acupressure rollers 27, 27 on the left and right are separated from each other. However, when the diaphragm 13 is expanded, as shown in FIG. 10, the spiral spring 45 is compressed to move the unit case 42 toward the inside, and the left and right finger pressure rollers 27, 27 approach each other. In this example, the left and right acupressure air cells 4, 4 move in the width direction by the same amount, but the positions in the width direction may be individually adjusted. The air conduit 12 to the diaphragm 13 is also connected to the diaphragm 13 from the bottom side of the acupressure unit 3 like the air conduit 11 to the acupressure air cell 4.

[0026]

The massage device of the present invention is more preferable because it supports the user's spine in a physiologically curved state and presses the acupressure roller on the back including the spine in the natural state with an appropriate pressing force. Achieve a massage effect. The physiological curvature is the most natural state of the spine,
The user can feel a sense of rest simply by taking such a posture. Depending on the height of the user, the support surface does not necessarily have an appropriate curved surface, but if the support surface is composed of a continuous convex head surface, concave back surface, and convex waist surface, physiological curvature centering on the concave back surface will occur. It can be guaranteed, and the difference in massage effect due to the difference in height of the user can be eliminated.

In addition, in the massage device of the present invention, in addition to the above-mentioned posture during use, the acupressure unit is pressed against the back by utilizing the air pressure that does not cause an excessive pressing force, so that the massage effect can be enhanced. Furthermore,
As illustrated, when the acupressure unit is made swingable, the acupressure roller can be tilted to escape when the acupressure unit is not pressed properly, and excessive pressing that causes a user to feel pain can be avoided. The use of air pressure also has the effect of achieving quietness in the massage device.

In addition, unlike the prior art, by adopting a drive system using a flexible drive belt wound around the driven roller and the drive roller arranged at both ends of the meandering orbit from the acupressure unit, the acupressure unit can be moved to the meandering orbit. Can be smoothly reciprocated along. The reciprocating movement of the acupressure unit by the flexible drive belt has an advantage of facilitating the positioning of the acupressure unit and, in addition, facilitating the position control of the acupressure unit.

Similarly, a back shaft support portion is provided behind the rear edge of the seat portion, and the back portion has a meandering track above the shaft support portion and below the shaft support portion an operation control portion of the acupressure unit. By incorporating the reciprocating drive unit or the retractable power unit of the acupressure unit and lowering the acupressure unit to the vicinity of the intersection of the seat and the back, the acupressure range can be expanded. In particular, in the present invention, since proper acupressure can be applied to the spine in a physiologically curved state, it is expected that the massage effect can be improved by expanding the acupressure range in this manner. This back configuration can also be used in conventional massage devices. Further, the position adjustment in the width direction of the acupressure air cell using the width air cell has a simple structure, and has an effect of providing quietness as compared with the conventional motor drive, as described above.

[Brief description of drawings]

FIG. 1 is a side view of a massage device to which the present invention is applied.

FIG. 2 is a circuit diagram of the massage device.

FIG. 3 is a back front view.

FIG. 4 is a front view of a back part without a supporting surface.

FIG. 5 is a back sectional view.

FIG. 6 is a cross-sectional view showing the inside of the acupressure unit excluding the surface.

FIG. 7 is a side view of the acupressure unit.

FIG. 8 is a cross-sectional view showing the inside of the acupressure unit excluding the side surface.

FIG. 9 is a side view showing a swinging mode of the acupressure unit.

FIG. 10 is a cross-sectional view corresponding to FIG. 6 showing adjustment in the width direction of the acupressure air cell.

[Explanation of symbols]

1 back 2 Support surface 3 Shiatsu unit 4 Shiatsu air cell 5 main frame 6 seats 13 Diaphragm (width air cell) 17 Operation control section 19 meandering orbit 20 motor (reciprocating drive) 23 head convex 24 back concave 25 waist convex

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yasushi Murase             3-4 Kanda Surugadai, Chiyoda-ku, Tokyo             Living Technology Co., Ltd. F-term (reference) 4C100 AE13 AF07 AF20 BB03 BC11                       CA03 DA05 DA06

Claims (6)

[Claims] 1. A seat part on which a user sits, a back part supported by the seat part to support the user's back, a finger-pressure unit for retracting and retracting the acupressure part while reciprocating in the back part, and the acupressure. In a massage device including an operation control unit of a unit, a reciprocating drive unit, and a retracting power unit of an acupressure unit, a roller opening extending in the direction of extension of the spine is provided on a support surface of the back, and a physiological curve of the spine is provided in the back. According to the above, a side-view meandering orbit is built in, and the acupressure unit has a acupressure roller attached to an acupressure air cell that expands and contracts toward the roller opening, and the acupressure roller can be retracted and retracted through the roller opening, and the reciprocating drive operates according to an operation control unit A massage device, wherein a portion reciprocates the acupressure unit along a meandering trajectory. 2. The meandering orbit is a bar that slides or rolls the support portion of the acupressure unit, and the acupressure unit smoothly reciprocates while maintaining the protruding / withdrawing direction of the acupressure roller substantially in the normal direction of the meandering orbit. The massage device according to claim 1, wherein the massage device is used. 3. The support portion of the acupressure unit comprises a guide roller and a receiving roller for sandwiching a bar material in a meandering orbit, and the receiving roller is axially attached to a swing arm biased in a rotating direction toward the guide roller. 3. The massage device according to claim 2, wherein the interval between the guide roller and the receiving roller is adjustable so that the retracting direction of the acupressure roller can be swung about the normal line direction of the meandering track. 4. The reciprocating drive section of the acupressure unit is meandering by rotating the driven roller disposed at both ends of the meandering track and a flexible drive belt wound around the drive roller from the acupressure unit forward or backward by the drive roller. The massage device according to claim 1, wherein the acupressure unit is reciprocated along a track. 5. A shaft attachment support portion of a back portion is provided rearward of a rear edge of the seat portion, and the back portion has a meandering trajectory above the axle attachment support portion, an operation control portion of a finger pressure unit below the axle attachment support portion, and a reciprocating portion. 2. The massage device according to claim 1, further comprising a retractable power unit for the driving unit or the acupressure unit, and the acupressure unit descends to a position near the intersection of the seat and the back. 6. The acupressure air cell of the acupressure unit expands in a width direction intersecting the reciprocating direction of the acupressure unit toward one side in the width direction and in the other side against the urging force of the urging means. 2. The massage device according to claim 1, further comprising a width air cell for adjusting the position of the acupressure air cell in the width direction by adjusting the air pressure of the width air cell.