JPH11178874A - Massager - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a massager which provides a sufficient massaging effect by providing a massage at the correct position while preventing the upper body of the user from moving sideways, and which solves the problems of pain in the part of the body making contact with the massager and fatigue that may result as the user takes a seated position for a long time. SOLUTION: A massager is of the chair type comprising a seat part 1, a backrest part 2, and a footrest 3, the backrest part 2 having a massaging means for massaging a human body M and having a raised part 10 for supporting both sides (outsides) of the waist. Because of the raised part 10, the upper body of the user M is firmly held against the backrest part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a massage machine for treating a human body by mechanical stimulation or electrical stimulation.

[0002]

2. Description of the Related Art A conventional massage machine is, for example, a chair type comprising a seat 1, a backrest 2 and a footrest 3, as shown in FIG. 1, and FIG. 24 (a cross-sectional view of the backrest 2). )
As shown in FIG. 1, a treatment element (fir ball) 20 is provided in the backrest 2 as a treatment means for performing treatment such as stroking or tapping the back (the part from the shoulder to the waist) of the human body M. The treatment element 20 is rotatably supported by the rotating shaft 21,
The center of the backrest 2 can be moved up and down. In this massage machine, the massager 20 massages from the shoulder to the waist of the human body M.

[0003]

However, in the conventional massage machine, the back of the human body M is pushed by the treatment element 20 during the massage, and the human body M is slightly lifted from the backrest portion 2. It will shake. If the human body M shakes right and left during the massage, the treatment element 20 is shifted from the correct treatment position, the effect of the massage is weakened, or the massage is performed in the massage prohibited area, so that a stable and effective massage can be performed. Absent. In addition, the user's feeling of use is not very good due to the lateral movement.

[0004] Further, although the cross-sectional shape of the human body M is generally substantially elliptical, the inner surface of the backrest portion 2 (the surface facing the human body M) has an area in which the treatment element 20 moves (treatment area). Since it is designed to be flat except for the region, the substantially oval human body M and the backrest 2 come into contact with only a very small area. That is, in FIG. 24, when the substantially oval human body M and the backrest portion 2 having the substantially flat inner surface come into contact with each other, both of them contact only a very short portion in the horizontal direction (transverse direction). Even if the contact area itself becomes large due to flexibility (elasticity), the pressure distribution in the contact portion is not uniform, so that a load is applied to a part (contact portion) of the human body M. Therefore, there is a problem in that a large pressure is applied to the contact portion, a feeling of oppression is felt, the contact portion becomes painful, and if the user sits for a long time, the user gets tired.

The present invention has been made in view of such a problem, and prevents the upper body from moving to the left and right, performs treatment in a correct position, draws out a sufficient massage effect, and provides a sufficient massage effect. An object of the present invention is to provide a massage machine that eliminates problems such as pain and fatigue in a long sitting posture.

[0006]

According to a first aspect of the present invention, there is provided a massage machine comprising a backrest portion and a treatment means for treating a human body in the backrest portion. The backrest has a raised portion that supports both sides (outside) of the waist.

In this massage machine, when the back is leaned on the backrest, both sides of the waist are supported by the ridge. In other words, due to the presence of the raised portion, the cross-sectional shape of the backrest portion corresponds to the cross-sectional shape of the waist of the human body,
The contact area between the backrest and the human body increases, and the human body is supported in a wide area. As a result, the upper body of the user is firmly held by the backrest, so that the upper body does not move right and left during the massage, so that the massage is reliably performed on a predetermined treatment site. In addition, since the contact area between the backrest and the human body is large, the pressure is almost uniformly distributed over the wide contact area, and the problem of pain at the contact portion and fatigue due to prolonged sitting posture is solved.

[0008] In the present invention, the treatment means is not specified as long as it can give a mechanical stimulus or an electric stimulus to the human body. Examples of the mechanical stimulus include a fir ball / fir ring type used in a normal massage machine, an air type that inflates and contracts an air bag with air, a vibration type that generates vibration with a vibrator, and air. There is a spraying type that sprays, and as a device that gives an electrical stimulus, for example, there is a low-frequency therapeutic device, which may be used alone or in combination. Further, the number of the treatment means does not need to be one, and a plurality of treatment means may be provided for variously massaging the human body. By this treatment means, you can also hit, hit, push,
A mechanical stimulus such as vibration or an electrical stimulus such as flowing a low-frequency current is applied.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. A massage machine according to one embodiment is schematically shown in FIG. This massage machine is a chair type including a seat 1, a backrest 2, and a footrest 3, and includes an operation device (remote control, not shown). Although not shown in FIG. 1, this massage machine has legs,
An armrest may be provided if necessary. The form of the massage machine itself is the same as that of the conventional one, but the backrest 2 has a raised portion 10 that supports both sides (outside) of the waist.

In FIG. 2, which schematically shows a cross-sectional view taken along line AA in FIG. 1, a treatment element 20 is provided on the backrest 2 so that the treatment element 20 can move vertically in the center. Treatment child 20
Is rotatably supported by the rotating shaft 21, and the treatment element 20 and the rotating shaft 21 move up and down integrally. However, in FIG.
Moving means for moving the rotary shaft 21 up and down and the treatment element 2
A treatment element driving means for performing treatment operations such as a fir operation and a tapping operation is omitted.

The raised portions 10 are provided on both sides of the backrest 2 and have a shape corresponding to the cross-sectional shape of the body of the human body M. The cross-sectional shape of the backrest 2 at the position of the raised portion 10 is as follows. It has a concave shape corresponding to the shape around the waist of the human body M, and has a curved surface that matches the curved surface of the human body M. Therefore, when the user M sits on this massage machine and leans his or her back on the backrest 2, the contact area (thick line portion) R between the human body M and the backrest 2 is large, and the upper body of the user M is raised. 10 is securely held by the backrest 2.

When the user M sits on the massage machine and instructs a massage operation by the operation device, a control device (not shown) controls the moving means and the treatment element driving means, and performs a predetermined procedure or In accordance with the designated operation procedure, the treatment element 20 and the rotating shaft 21 are moved up and down, and the treatment element 20 performs a treatment operation such as a squeezing operation, a tapping operation, and an acupressure operation at a predetermined treatment site.

At this time, the upper body of the user M is the backrest 2
, The human body M does not shake left and right. Also, since the upper body does not move, the treatment element 2
0 can be accurately applied to a predetermined treatment site, and the treatment site can be effectively massaged. Furthermore, since the contact area R between the human body M and the backrest portion 2 is large, the weight is dispersed over a large area, and the contact portion does not feel pain and does not feel tired even when sitting for a long time.

The shape of the backrest 2 will be described in more detail with reference to FIG. 3. In FIG. 3 (a), the cross-sectional shape of the backrest 2 along line BB is represented by a curved surface 10a in FIG. 3 (b). And the cross-sectional shape along the line CC is the curved surface 10
The height of the raised portion 10 is higher at the lower part of the backrest 2 as represented by b. Thus, the ridge 10
Is provided only at the position corresponding to the waist of the human body M (the lower part of the backrest portion). If the raised portion 10 is provided entirely over the upper portion, when leaning against the backrest portion 2,
It takes into account that the arm is in a sitting position where it is pushed forward, making it impossible to sit comfortably, and that the cross-sectional shape of the back part above the waist becomes flatter from the substantially elliptical shape of the waist Because it is.

In addition to providing the raised portion 10 on the backrest 2, the seat 1 may be provided with a concave portion 15 corresponding to the shape of the buttocks and thighs of the human body M as shown in FIG. Recess 15
Has a U-shape in plan view, and when the user M sits on the seat 1, the buttocks and thighs are substantially accommodated in the recesses 15, and the sense of stability when sitting further increases. In the above-described embodiment, various forms will be described in which the shape of the raised portion 10 is constant, but the shape of the waist-corresponding portion including the raised portion of the backrest can be changed. The shape of the waist-corresponding portion can be changed because the body shape and the physique vary greatly among individuals. Therefore, it is still not possible to solve the above-mentioned problems of the related art only by keeping the shape of the raised portion 10 constant. Because it is enough. Therefore, by changing the shape according to the body type and physique, it is possible to support the body with a shape more suitable for the user's body, dispersing the pressure applied to the body, and comfortable sitting comfort Obtainable. For example, even a user with a small body can hold the body firmly by adapting to his / her body, and the body does not shake during massage, so that the massage effect is not affected by individual differences and the like.

It is convenient to change the shape of the portion corresponding to the waist with a fluid (a gas such as air or a liquid such as water). That is, since the fluid is indefinite, it can be easily changed to a shape that fits the human body. In particular, when air is used as the fluid, the air can be easily taken in and discharged, so that it can be used with almost no restrictions and is efficient. In addition, since air is lighter than liquid such as water, it is not necessary to consider the strength of the structure related to the fluid system other than the pressure, and the design is easy.

FIGS. 5 and 6 show specific examples in which the shape of the portion corresponding to the waist is changed using air as the fluid. FIGS. 5 and 6 are schematic diagrams showing the internal structure of the backrest 2, and the treatment element is omitted. Here, the backrest 2
The air bladder 30 is disposed inside the raised portion 10 of the airbag, and both air bladders 30 communicate with each other through a flow path (pipe, tube, etc.) 32. Further, a pump 33 for sending air 31 to the air bag 30 and a valve 34 for bleeding the air 31 from the air bag 30 are provided in the backrest 2. The valve 34 is located on the back surface of the backrest 2 and has an opening (not shown) for discharging the air 31 to the outside. When the valve 34 is open, the flow path 32 communicates with the outside.

In this structure, when the degree of protrusion of the raised portion 10 is increased, the valve 31 is closed, the air 31 is introduced into the air bag 30 by the pump 33, and the air bag 30 is inflated. Then, the pressure in the air bag 30 is increased, and the raised portion 10 is raised by the force (the state of FIG. 5). Conversely, when the degree of protrusion of the raised portion 10 is reduced, the valve 34 is opened, the air 31 in the air bag 30 is discharged to the outside from the backrest portion 2, and the air bag 30 is contracted. The pressure in the ridge 10 is reduced.
Is retracted (the state shown in FIG. 6).

In FIG. 5, the air bladder 30 is connected to each of the raised portions 1.
Although one air bag is provided for each of the protrusions 10, a plurality of air bladders may be used, such as one air bag above and below each of the protrusions 10 (two for each of the protrusions 10). Although air is supplied to both air bags 30 by one pump 33, one air is supplied to each raised portion 10.
If the pumps 33 are provided one by one, the degree of protrusion of each protrusion 10 can be changed independently.

On the other hand, the fluid may be replaced with a liquid such as water. However, in this case, it is necessary to have a watertight structure so that the liquid does not leak from a fluid system such as a bag or a flow path, and it is necessary to take measures to prevent wetting and electric shock in case of leakage. If such measures are sufficiently taken, the same operational effects as those of the air can be obtained. Or fluid (gas or liquid)
Alternatively, a gel-like substance (jelly-like substance) or a granular substance (beads, buckwheat, etc.) can be used. In this case, by filling or discharging the substance from the bag, the bag is expanded and contracted to change the shape of the raised portion.

Thus, using a fluid (gas or liquid),
By controlling the fluid pressure and the amount of fluid, the degree of elevation of the raised portion 10 can be made to be continuously variable in size, and even for users of different physiques and shapes, the backrest portion including the raised portion 10 can be used. 2 can be deformed so as to conform to the curved shape of the human body M, and the human body M is securely held by the backrest 2 (see FIG. 7).

Further, as shown in FIG. 8, since the internal pressure of the air bag 30 is uniform by the principle of Pascal, the human body M
The force applied to the human body is almost evenly distributed, and the human body M
Can be held. In addition, even if the upper body is moved or the posture is changed, the shape of the backrest portion 2 changes quickly in accordance with the movement, so that the force is always dispersed. In the above embodiment, the air bladder 10 is arranged on the whole of the protruding part 10. However, as shown in FIG. 9, a protruding part 2a is provided on the backrest part 2, and the air bladder 30 is arranged on the protruding part 2a. Ridge 1
Only a part of zero may be raised. Alternatively, most of the raised portion is made of a material (plastic, etc.) that is hardly deformed, and a bag for introducing a fluid is arranged on the surface of the raised portion, thereby dispersing the force while maintaining the general shape of the raised portion. Can be obtained.

On the other hand, in the above embodiment, the pump 33 is used in the fluid system. FIG. 10 shows a fluid system in which the pump 33 is replaced by a compressor and a plurality of valves. In FIG.
A compressor 35 is connected to the flow path 32, and two exhaust valves 36 and 37 are provided in the flow path 32 that communicates the compressor 35 and the air bladders 30. The compressor 35 and the valves 36 and 37 are controlled by a control circuit 38. Is done.

In the case where a liquid, or a gel-like substance or a granular substance is used as the fluid for expanding and contracting the bulge, the bag 30 'is made of a substance 31' as shown in FIG.
Due to its own weight, the swelling of the lower portion of the backrest portion 2 is large, and the swelling of the upper portion of the swelling portion 10 is small, and the swelling portion 10 does not have a preferable swelling shape (dotted line portion). In order to prevent this, as shown in FIG. 11B, for example, the raised portion 10 is divided into four rooms by a partition wall 40, and bags 30 (ad) are arranged in each room, and each bag 30 (a) is arranged. To d) may be independently expanded and contracted.

In the case of FIG. 11B, each bag 30 (a to
d) is not the same, but as shown in FIG. 12A, the support plates 41 (a to 41a) provided inside the raised portion 10 are provided.
d) is fixed. Alternatively, as shown in FIG. 12B, each bag 30 (a to d) is provided with a support plate 41 (a to
d) as well as being fixed to the surface side of the raised portion 10. Particularly, as shown in FIG.
The surface of No. 0 is unlikely to be uneven, and the feel when leaning against the backrest 2 is good.

In the above embodiment, the expansion and contraction of the protruding portion 10 is performed by a fluid, a gel-like substance or a granular substance.
An example of the structure in the case of performing the operation by a mechanical mechanism will be described. FIG. 13 is a schematic perspective view of a massage machine incorporating the mechanical mechanism. FIG. 14 (a) is a cross-sectional view taken along line DD in FIG. 13, and FIG. 14 is a schematic perspective view of the mechanical mechanism.
(B) of FIG. This massage machine is a chair type including a seat 1, a backrest 2, a leg 4 and an armrest 5, and a treatment element 20 and a rotating shaft 21 that can move in the vertical direction are provided at the center of the backrest 2. Ridges on both sides of the bottom
0 is arranged.

In FIG. 14A, a back plate 50 pivotally supported by a shaft 52 is provided inside each raised portion 10.
Are arranged, and a cushion 51 is attached to the back plate 50. A shaft 53 is rotatably supported behind the back plate 50, and one end (front end) of the shaft 53 is a screw portion.
A push table 54 is screwed into this screw portion, and the push table 54
It can move back and forth by the rotation of 3. The push rod 54 has a push rod 55, and the tip of the push rod 55 is fixed to the back plate 50. A pulley 56 is attached to the other end (rear end) of the shaft 53, and a belt 57 is hung between the pulleys 56. In the middle of one shaft 53, a bevel gear 58 is attached, and another bevel gear 59 meshes with this bevel gear 58,
The bevel gear 59 is fixed to one end of a shaft 60, and an adjustment knob 61 is fixed to the other end of the shaft 60. The adjustment knob 61 appears on one side of the backrest 2 (see FIG. 13).

In order to raise the raised portion 10 by this mechanical mechanism, the adjustment knob 61 is turned in the direction of the arrow. Then, the rotation is transmitted through the shaft 60 and bevel gears 59 and 58 to the shaft 5.
Transfer to 3. When one shaft 53 rotates, the other shaft 53 also rotates by the same amount of displacement in the same direction by the pulley 56 and the belt 57, and the push table 54 moves forward with respect to the rotation of the shaft 53, so that the back plate 50 is pushed forward by the push rod 55 and rotates forward about the shaft 52. Back plate 5
When the 0 rotates, the cushion 51, that is, the raised portion 10 protrudes inward and forward. In order to retract the raised portion 10, if the adjustment knob 61 is turned in the opposite direction, the back plate 50 is pulled by the push rod 55 by the action opposite to the above, and the cushion 51 is retracted.

In the mechanical mechanism shown in FIG. 14, the adjustment knob 61 is manually operated, but the rotation of the shaft 53 may be automatically performed by a motor or the like. In this case, the adjustment knob 6
Instead of 1, for example, an operation switch is provided, and the mechanism operates only while the operation switch is pressed. Alternatively, a pressure detection sensor may be provided on the cushion 51, the pressure applied to the cushion 51 may be detected by the pressure detection sensor, and the amount of protrusion of the raised portion 10 may be automatically controlled based on the detected pressure. For example, when the pressure is increased, the amount of protrusion of the raised portion 10 is reduced, and when the pressure is reduced, the amount of protrusion of the raised portion 10 is increased.

In FIG. 14, the back plate 50 can be swung by the shaft 52, and the opening angle of both cushions 51 changes.
For example, when the back plate 50 is fixed straight to the push rod 55 of the push table 54 and the shaft 52 is eliminated, the back plate 50 and the cushion 51 move in parallel back and forth in accordance with the operation of the adjustment knob 61, and The protrusion of the part 10 becomes linear.

FIG. 15 shows another example of the mechanical mechanism. Here, the back plate 50 to which the cushion 51 is attached is fixed in position by a ratchet mechanism 65 at every plural stages. The back plate 50 has a tension spring 6 having one end locked to the back plate 50 and the other end locked to the back of the backrest 2.
6, it is always pulled backward. Also, on both sides of the backrest 2, there are provided grips 67 for putting hands. In this mechanical mechanism, when the user puts his hand into the handle 67 and pulls the ridge 10 forward against the tension of the tension spring 66, the ratchet mechanism 65 changes one step at a time. The protruding amount of the raised portion 10 can be adjusted to the position. When the ratchet mechanism 65 is pulled beyond a certain stage, the lock is released, the back plate 50 is pulled by the tension spring 66, and the raised portion 10 is retracted to the original position.

FIG. 16 shows still another example of the mechanical mechanism. In FIG. 16, a large deformation of the raised portion 10 is performed in a mechanical portion, and a slight deformation, shape correction, and the like of the raised portion 10 are performed using a fluid. That is, the air bag 30 is attached to the back plate 50 instead of the cushion 51, and the pump 33 for introducing air into the air bag 30 and the air bag 30
And a valve 34 for discharging air from the inside. In this mechanical mechanism, rough deformation of the raised portion 10 is performed by putting a hand on the handle portion 67 and pulling out the raised portion 10 in the same manner as described above. Thereafter, in order to perform minor deformation, shape correction, and the like of the raised portion 10, the pump 33 is operated to introduce air into the air bag 30, and the air bag 30 is inflated.

With the configuration as shown in FIG. 16, since the rough deformation of the raised portion 10 can be performed by a mechanical portion, the capacity of the air bag 30 can be reduced, and even if the amount of change in air is reduced. A sufficient massage effect can be obtained. or,
The pump 33 and the like can be small, and power consumption and noise can be reduced. In FIG. 16, an electric pump or a compressor using an internal combustion engine may be used instead of the pump 33 and the valve 34, or a manual bellows-like device may be used. Of course, FIGS. 15 and 16
In this mechanism, a pressure detection sensor may be provided to automatically operate the mechanism according to the detected pressure.

On the other hand, in particular, in the embodiment in which the raised portion 10 is deformed by using a fluid (see FIGS. 5 to 12 and FIG. 16), the user's physique is detected by the fluid pressure, and based on the result of the detection. The deformation of the raised portion 10 can be performed automatically. For example, a pressure sensor is provided inside the air bag or the like, and when the detected pressure is large, it is determined that a person with a large physique and weight is using it, and the degree of protrusion of the raised portion 10 is reduced (the inside of the raised portion 10 is reduced). Reduce fluid volume) or
Alternatively, if the width of the raised portion 10 can be expanded, the width is increased. Conversely, if the detected pressure is small, it is determined that a small physique or a lightweight person is using the sensor, and the degree of protrusion of the raised part 10 is increased (the amount of fluid in the raised part 10 is increased) or the raised part is increased. The width of 10 is reduced so that the pressure of the fluid becomes constant. The detection of the user's physique can also be performed by providing a load sensor or a pressure sensor on the backrest.

When the massage machine is of a chair type as shown in FIGS. 1 and 13 and has a reclining function, when the backrest is tilted backward to increase the degree of reclining, it is formed by the raised portions 10. The body falls down according to gravity in the recess of the backrest part, and feels cramped. Therefore, as the degree of reclining increases, the opening angle of the raised portion 10 may be increased to reduce the feeling of falling of the body. In this case, the degree of reclining and the opening angle of the raised portion 10 may be linked, but since there are individual differences in physique and weight,
The pressure applied to the raised portion 10 is detected by the above-mentioned pressure detecting means, and the opening angle of the raised portion 10 is adjusted in accordance with the detected pressure, so that the user can feel the comfort of the raised portion 10 more comfortably. The shape can be changed.

The above description relates to the deformation structure of the raised portion. The seat structure for receiving the raised portion when the backrest having the raised portion is folded toward the seat portion will be described.
This will be described with reference to FIGS. First, in FIG. 17, the seat portion 1 and the backrest portion 2 are connected, the backrest portion 2 is rotatably (swingably) supported by a support shaft 70, and the seat portion 1 and the backrest portion 2 are mutually engageable claws. 7
1,72. Further, although not shown in the drawings, the portion of the seat 1 to which the raised portion 10 of the backrest 2 contacts is formed of a spring, a soft sponge, or the like. Of course, this portion of the seat portion 1 is supported by a rigid structure or a trampoline-like structure so that the user does not easily become dented even when sitting.

In this structure, the claws 71 and 72 normally mesh with each other, the seat 1 does not dent, and functions as a chair (see FIG. 17A). When the backrest 2 is folded, when the backrest 2 is folded forward, the claws 71 and 72 are disengaged from each other,
The seat 1 can be recessed (see FIG. 17B). When the backrest portion 2 is further tilted forward, the seat portion 1 is pressed by the raised portion 10 and dented (see FIG. 17C). When the backrest 2 is completely folded, the raised portion 10 is
The seat 1 and the backrest 2 are completely adhered to each other (see FIG. 17D).

In FIG. 18, the backrest 2 has a reclining function, and a reclining mechanism 73 is provided between the seat 1 and the backrest 2. In this structure, when used as a chair-type massage machine, the pawl 71 engages with the reclining mechanism 73 (see FIG. 18A).
In this state, since the pawl 71 is fixed to the reclining mechanism 73, the seat portion 1 does not become concave, and the backrest portion 2 can be tilted backward to operate the reclining function (see FIG. 18B). When the backrest 2 is folded, when the backrest 2 is tilted forward, the pawl 71 is disengaged from the reclining mechanism 73, and the seat 1 is pushed by the protruding portion 10 to be recessed (see FIG. 18C). When the backrest 2 is completely tilted forward, the raised portion 10 is received by the seat 1, and the seat 1 and the backrest 2 come into close contact (see FIG. 18D).

FIG. 19 shows a case in which a reclining function is also provided, but the lever 74 is used for folding. That is, the lever 74 is connected to the reclining mechanism 73, and the pawl 71
And the reclining mechanism 73 can be engaged and disengaged. With this structure, when used as a chair-type massage machine, the lever 74 is lowered (see FIG. 19A). In this state, the pawl 71 is
As described above, the seat 1 does not become concave as described above, and the reclining function can be used. Backrest part 2
When the lever is folded, when the lever 74 is pulled upward, the pawl 71 is disengaged from the reclining mechanism 73, and the seat portion 1 is pressed by the backrest portion 2 to be recessed (see FIG. 19B). When the backrest 2 is completely folded, the raised portion 10 is received by the seat 1, and the seat 1 and the backrest 2 are in close contact (see FIG. 19C).

The seat 1 can receive the raised portion 10 of the backrest 2 when the backrest 2 is folded,
The structure can be realized by, for example, FIGS. FIG. 20 schematically shows the internal structure of the seat 1,
The portion of the seat portion 1 that does not hit 0 is constituted by a coil spring 80 and an elastic body (urethane, sponge, cotton, etc.) 81, and the portion of the seat portion 1 that the bump portion 10 hits is an elastic body (not shown).
In addition, a supporting member (metal plate, beam, or the like) 82 is supported by a coil spring 83 so as to receive the raised portion 10. The surface 85 of the seat 1 is made of a soft material (fiber, leather, or the like) so that there is no discomfort such as hardness when sitting.
The pawl 88 engages with the pawl on the backrest 2 side. Instead of the pawl 88, a link mechanism or a cylinder mechanism for connecting the seat 1 and the backrest 2 may be used.

In FIG. 21, the portion of the seat 1 where the raised portion 10 does not contact is a coil spring 80, an elastic body 81, and a support member (a plate, a beam or a box-shaped structure made of metal, resin, wood, or the like). The portion of the seat 1, which is constituted by 84, and which is in contact with the raised portion 10 is constituted by an elastic body (not shown) and a coil spring 83. Here, by providing the support member 84, no elastic body is provided below the support member 84. However, the lower part of the support member 84 may be left hollow or an elastic body may be appropriately packed.

The seat 1 having the internal structure shown in FIGS.
Then, in the usual case of using as a massage machine, nail 8
8 engages with the claw on the backrest 2 side. In this engaged state, the seat 1 does not dent and functions as a chair. When the backrest 2 is folded forward to some extent to fold, the claws are disengaged, the seat 1 is pushed by the ridge 10, and the dentable portion of the seat 1 is dented, and the ridge 10 Fits, seat 1
And the backrest 2 can be folded so as to completely overlap each other.

The engagement between the seat 1 and the backrest 2 may be manually fixed and released. Further, the portion of the seat portion 1 to which the raised portion 10 contacts may be not only supported by an elastic material such as a spring or sponge, but also may have a structure in which a cushion is placed on a trampoline-like structure. Further, as shown in FIG. 22 (the plan view (a) and the side view (b)), the portion 91 of the seat 1 which is recessed by the protrusion 10 of the backrest 2 is only on both sides of the seat 1, The portion between the portions 91 may have the same configuration as the portion 90 where the raised portion 10 does not hit.

In FIGS. 17 to 22, the seat portion 1 is
If the raised portion 10 expands and contracts due to a fluid, the amount of fluid inside the bag arranged in the raised portion 10 is reduced, so that the raised portion 10 is recessed and then the backrest is received. The unit 2 may be folded. An example is shown in FIG. In (a) of FIG. 23, at the time of normal use as a chair-type massage machine, the bag disposed inside the raised portion 10 is filled with a fluid, so that the raised portion 1
0 is approaching. When the backrest 2 is folded, the fluid inside the bag is drained to reduce the amount of protrusion of the raised portion 10 so that the raised portion 10 is at the same level as other portions (see FIG. 23). (See (b)). When the backrest 2 is folded in this state, some of the protrusions of the protrusions 10 are absorbed by the elasticity of the seat 1, so that the seat 1 and the backrest 2 can be completely folded [(c) of FIG. reference〕.

Here, by the way, the backrest 2 is raised
If the seat 1 is not depressed enough to receive the ridge 10, the backrest 2 can be folded as shown in FIG. That is, in FIG. 25 (a), there is no problem in using it as a normal massage machine, but when the backrest 2 is folded forward to be folded, the raised portion 10 becomes the seat 1
[See FIG. 25 (b)], the seat back 1 can be tilted to a certain extent because the seat 1 has elasticity. However, the raised portion 10 hinders the backrest 2 from being completely folded, and the backrest 2 floats from the seat 1 (see FIG. 25C).

In this case, it is inconvenient to carry, and a large storage space is required. However, FIG.
With the configuration as shown in FIG. 23, it is possible to completely fold and the degree of freedom of the shape of the seat 1 and the backrest 2 is increased.

[0047]

As described above, according to the first aspect of the present invention, since the both sides (outside) of the human waist are supported by the raised portion of the backrest, the following effects (1) to (3). Is obtained. (1) Since the upper body of the user is firmly held by the backrest portion, the upper body does not move right and left during the massage, and the treatment site can be surely treated by the treatment means. Becomes possible. (2) The waist of the user is pushed from behind by the raised portion, so that the upper body is in a state of warping backward, and the upper body can be massaged effectively. (3) Since the contact area between the backrest portion and the upper body of the user is large, the contact pressure is distributed almost uniformly in the wide contact area, and the contact portion feels pain and becomes tired even when sitting for a long time. There is no such thing.

[Brief description of the drawings]

FIG. 1 is a schematic view of a chair-type massage machine according to one embodiment.

FIG. 2 shows a state in which a user is sitting on the massage machine.
FIG. 3 is a schematic sectional view taken along line AA of FIG.

3A is a schematic side view showing the shape of a backrest of the massage machine, and FIG. 3B is a schematic cross-sectional view taken along line BB and line CC in FIG. 3A.

FIG. 4 is a schematic perspective view showing a form example of a seat of the massage machine.

FIG. 5 is a schematic view showing an internal structure of a backrest portion of the massage machine when an air bladder at a raised portion is inflated.

FIG. 6 is a schematic diagram showing an internal structure of a backrest portion of the massage machine when an air bladder at a raised portion is contracted.

FIG. 7 is a schematic view showing a contact state between a backrest having a raised portion having the internal structure of FIG. 5 and a human body.

FIG. 8 is a schematic diagram showing a state when an air bladder arranged on a raised portion of the backrest is inflated.

FIG. 9 is a schematic diagram showing another example of the internal structure of the backrest.

FIG. 10 is a schematic diagram showing an example of a fluid system including an air bladder arranged in a raised portion.

FIGS. 11A and 11B are a schematic diagram showing a state in which a bag arranged in a protruding portion is lowered by its own weight, and a schematic diagram showing an arrangement form of the bag.

FIGS. 12A and 12B are a schematic diagram illustrating an example of a fixing structure of a bag arranged in a raised portion, and a schematic diagram illustrating another example of a fixing structure;

FIG. 13 is a schematic perspective view of a chair-type massage machine according to another embodiment.

FIG. 14 is a schematic cross-sectional view (a) taken along line DD in FIG. 13 for illustrating an example of a structure for raising a raised portion of a backrest of the massage machine, and a perspective view (b) illustrating a mechanism of (a). ).

FIG. 15 is a schematic cross-sectional view showing another example of a structure for raising the raised portion of the backrest.

FIG. 16 is a schematic cross-sectional view showing still another example of a structure for raising a raised portion of a backrest.

FIG. 17 is a schematic side view showing a series of exemplary form changes of the seat and the backrest when the backrest is folded.

FIG. 18 is a schematic side view showing a series of another form change example of the seat and the backrest when the backrest is folded.

FIG. 19 is a schematic side view showing a series of still another form change example of the seat portion and the backrest portion when the backrest portion is folded.

FIG. 20 is a schematic view showing an example of an internal structure of a seat required to fold the backrest.

FIG. 21 is a schematic view showing another example of the internal structure of the seat required to fold the backrest.

FIG. 22 is a schematic plan view (a) and a schematic side view (b) showing still another example of the internal structure of the seat required to fold the backrest.

FIG. 23 is a schematic side view showing a series of still another form change example of the seat and the backrest when the backrest is folded.

FIG. 24 is a cross-sectional view of a backrest in a state where a user is sitting on a massage machine according to a conventional example.

FIG. 25 is a schematic side view showing a series of changes in the form of the seat and the backrest when the backrest is folded, in a massage machine having a seat that does not have an internal structure necessary to fold the backrest.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat part 2 Backrest part 3 Footrest 4 Leg part 5 Armrest 10 Raised part 15 Depression 20 Treatment element (treatment means) 30 Air bag 31 Fluid M User (human body)

Claims (22)

[Claims] 1. A massage machine comprising a backrest portion and a treatment means for treating a human body in the backrest portion, wherein the backrest portion has a raised portion for supporting both sides (outside) of a waist portion. Machine. 2. The massage machine according to claim 1, wherein the raised portion has a convex shape to press the waist. 3. The massage machine according to claim 1, wherein a cross-sectional shape of the backrest at the position of the bulge is a concave shape corresponding to a shape around the waist. 4. The raised portion has a convex shape that pushes the waist, and the cross-sectional shape of the backrest at the position of the raised portion is a concave shape corresponding to the shape around the waist. The massage machine according to claim 1. 5. The massage machine according to claim 1, wherein the massage machine is a chair having a seat, and the seat has a concave portion corresponding to the shape of the buttocks and the thighs. The massage machine according to claim 3 or 4. 6. The waist-corresponding portion including the raised portion of the backrest portion can change its shape. Massage machine. 7. The massage machine according to claim 6, wherein the shape change is caused by expansion and contraction of a raised portion. 8. The massage machine according to claim 7, wherein the expansion and contraction of the raised portion is performed by a fluid. 9. The massage machine according to claim 8, wherein said fluid is a gas. 10. The massage machine according to claim 8, wherein said fluid is a liquid. 11. The massage machine according to claim 7, wherein the expansion and contraction of the raised portion is performed by using a gel-like substance. 12. The massage machine according to claim 7, wherein the expansion and contraction of the raised portion is performed by using a granular material. 13. The massage machine according to claim 6, wherein the shape change is caused by a mechanical mechanism. 14. The massage machine according to claim 13, wherein said mechanical mechanism changes an opening angle of said raised portion. 15. The method according to claim 6, wherein the shape change is performed according to a user's physique.
The massage machine according to claim 9, claim 10, claim 11, claim 12, claim 13, or claim 14. 16. The method according to claim 6, wherein the shape change is performed in accordance with the degree of reclining of the backrest portion. The massage machine according to claim 12, 13, 13, 14, or 15. 17. The method according to claim 6, wherein the shape change is manually performed. 17. The massage machine according to claim 14, 15, or 16. 18. The method according to claim 6, wherein the shape change is performed automatically. 17. The massage machine according to claim 14, 15, or 16. 19. The massage machine according to claim 18, wherein the automatic shape change is performed based on a result of detecting physical information of the user. 20. The massage machine according to claim 19, wherein the physique information of the user is detected by a fluid pressure of the fluid. 21. The massage machine is of a chair type having a seat, and the seat has a structure for receiving a raised portion when the backrest is folded toward the seat. 1, Claim 2, Claim 3, Claim 4, Claim 5, Claim 6, Claim 7, Claim 8, Claim 9, Claim 10, Claim 11, Claim 12, Claim 12, Claim 13 Claim 1
4. Claim 15, Claim 16, Claim 17, Claim 1
The massage machine according to claim 19, 20 or 21. 22. The massage machine is of a chair type having a seat portion, wherein the raised portion has no or reduced raised degree when the backrest is folded toward the seat portion. Claim 6, Claim 7, Claim 8, Claim 9, Claim 10, Claim 11, Claim 12,
The massage machine according to claim 13, claim 14, claim 15, claim 16, claim 17, claim 18, claim 19, or claim 20.