JP2000288055A - Air massage machine - Google Patents

Abstract

(57) [Problem] To provide an air massage machine capable of obtaining a good massage effect without reducing the pressing force even if the contact relationship of a treatment element contacting each part of the body changes. Is to do. SOLUTION: A cylinder (cylindrical body) 31 having an air chamber 31a, and an air supplied and exhausted to and from the air chamber 31a having an action surface 32c having a certain area to receive the action of air pressure supplied to the air chamber 31a. Piston 32 which moves with respect to the cylinder 31
A treatment unit 30 comprising a treatment element 33 for pressing the body through the movement operation 2, an air supply / exhaust device 40 for supplying / exhausting air to / from the air chamber 31a, and adjusting the air pressure in the air chamber to be substantially constant. A pressure adjusting means 80 is provided, and by applying a constant air pressure on the action surface 32c having the constant area, a decrease in the pressing force is prevented even when the effective pressing area of the treatment element 33 in contact with the body changes. Air massage machine like this.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air massager for operating a treatment element by air supply and exhaust to massage a body.

[0002]

2. Description of the Related Art Conventionally, a chair-type air massager has been used as an air massager for inflating and inflating an air bag which expands and contracts by supplying and exhausting air to inflate and inflate each part of the body by air supply and exhaust. Or it is widely known as a mat type air massage machine.

[0003] This type of air massage machine is performed by pressing each part of the body (hereinafter referred to as a treatment portion) with an inflating air bag, and the pressing force of the inflating air bag is reduced. The area of the airbag that hits the treatment section (hereinafter referred to as the effective pressing area)
And the pressure of the air.

In many cases, the body shape of the user is different, and even if the user is the same user, the body has various curved surfaces. In other words, in the process of performing, that is, as the airbag inflates, the effective pressing area that comes into contact with and presses the body may differ.

Therefore, even if the pressure of the air supplied to the airbag is the same, the effective pressure area on the body of the airbag changes, so that the pressing force is different and massage cannot be performed with a constant pressing force.

[0006] This is not a problem since the pressing force increases when the effective pressing area hitting the body increases as the body expands. However, when the effective pressing area decreases, that is, when the pressure decreases, the desired pressing force cannot be obtained. The effect will be impaired.

[0007]

As described above, in the conventional air massage machine, the effective pressing area of the body with respect to the treatment target changes as the air is inflated, and the massage is performed with a predetermined constant pressing force. In particular, when the effective pressing area becomes smaller as it expands, the desired pressing force cannot be obtained, and the massage effect is impaired.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an invention according to claim 1 has an air chamber and a function of a fixed area which receives the action of air pressure supplied to the air chamber. A working body having a surface and moving by air supplied to and exhausted from the air chamber, a treatment section comprising a treatment element for pressing a body through a movement operation of the working body, and air flowing into the air chamber through a flow path. An air massaging machine comprising an air supply / exhaust device for supplying / exhausting air and pressure adjusting means for adjusting the air pressure in the air chamber to a constant value.

As described above, the first aspect of the present invention has an air chamber and a working surface having a certain area which receives the action of air pressure supplied to the air chamber, and is moved by air supplied and exhausted to the air chamber. Actuator, a treatment section consisting of a treatment element that presses the body through the movement of the actuator, supplies and exhausts air from an air supply / exhaust device through a flow path to the air chamber, and a pressure adjusting unit. Since the air pressure in the air chamber is adjusted to be constant, the pressure of the air supplied to the air chamber is made constant by the pressure adjusting means, and this constant pressure acts on the working surface of the working body having a certain area. Therefore, the pressing force generated on the working body is constant,
Therefore, a constant pressing force can be applied irrespective of the state of contact of the treatment element with the treatment section of the body. Therefore, the massage effect can be improved without impairing the massage effect due to the decrease in the pressing force.

According to a second aspect of the present invention, in the first aspect of the present invention, the air chamber is formed of a cylindrical body having shape-retaining properties, and the operating body is arranged in the axial direction with respect to the cylindrical body. This is an air massage machine using a piston having a shape retaining property to move.

According to a second aspect of the present invention, in the first aspect of the present invention, the air chamber is formed by a cylindrical body having a shape-retaining property, and the operating body is arranged in the axial direction with respect to the cylindrical body. Since the piston body has a shape-retaining property that moves in the axial direction, the piston body does not bend in a direction different from the axial direction when moving in the axial direction, so that the pressing force can be reliably and efficiently transmitted to the treatment element. It has the action of: In addition, since the cylindrical body and the piston body have shape retaining properties, they do not bend or deform in a direction different from the axial direction when moving in the axial direction, so that means for preventing this deformation is not required. Is easy.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a case where the present invention is a chair type air massage machine will be described with reference to FIGS. FIG. 1 is a perspective view of a chair-type air massage machine (hereinafter simply referred to as a massage machine) 1. The massage machine 1 includes a chair body 10, a moving mechanism 20 provided on the chair body 10, a treatment section 30, and an air supply unit. It comprises an exhaust device 40 and the like.

Although not shown, the chair body 10 has a body frame comprising a seat base, a backrest frame provided behind the seat base and having a storage portion formed therein. Side walls 12 and 12 are provided on both sides of the seat base, with the upper part serving as an armrest 11.

An operation panel 14 is provided on one of the side walls 12, 12, ie, on the right side in FIG. 1. The operation panel 14 includes a power switch 15a, a start switch 15b, a stop switch 15c, and a vertical position setting. Various control switches such as a switch 15d, a left / right position setting switch 15e, and a first mode switch 15f to a third mode switch 15h for setting a massage mode, that is, a first mode to a third mode described later, are provided.

A seat 13 is provided on the seat base (not shown).
The seat 13 is provided with an airbag 62 for the hips and an airbag 63 for the hips that inflate and contract by the air supply and exhaust to massage the hips and the thighs, and these airbags for the hips are provided. Air is supplied to and exhausted from the air supply and exhaust device 40 described later in detail to the air bag 62 and the thigh air bag 63.

A board 16 for resting the back is mounted on the front surface of the backrest frame (not shown). A backrest 17 is formed by the board 16, and the rear side of the board 16 is not shown. This is the storage section.

An airbag 61 for the back is arranged below the backrest 17, that is, at a position corresponding to the waist when the user sits on the seat 13 while sitting on the seat 13, in front of the board 16. The air supply / exhaust device 40 supplies / exhausts air to / from the air bag 61 as well.

The board 16 has a square shape so that a treatment element 33 of the treatment section 30 described later can move along the back, although not shown above a portion where the waist airbag 61 is disposed. A hole is formed.

The backrest frame is entirely covered with a cover 18.
And thus the board 16,
Waist airbag 61, moving mechanism 2 described in detail later
The treatment section 30, the air supply / exhaust device 40, and the like are covered by the cover 18.

Next, the moving mechanism 20, the treatment section 30, and the air supply / exhaust device 40 arranged inside the backrest, that is, in the storage section, will be described.

First, a moving mechanism 2 for moving the treatment section 30
0 will be described. The moving mechanism 20 includes a first base 21 and a pair of second bases 2 as shown in FIGS.
2. It comprises a pair of treatment units 30 provided on the second base 22.

As shown in FIG. 2, the first base 21 is formed in a rectangular parallelepiped shape, and is opposed to each other in the vertical direction along the longitudinal direction on the front side (the side facing the body). The formed guide rails 21a, 21a are formed.

The first base 21 is formed with guide holes 21b, 21b penetrating in the vertical direction at both ends in the longitudinal direction. Screw hole 21c penetrating through
Are formed.

As shown in FIGS. 3 and 4, the first base 21 is formed between the screw screw hole 21c and the two guide holes 21b so as to penetrate in the front-rear direction and along the longitudinal direction. The elongated holes 21d, 21d function to move the hoses 66a, 66a connected to the cylinder 31, which will be described later, along the longitudinal direction.

Next, the pair of second bases 22 will be described. These two bases 22 have the same configuration. This second base 22 is shown in FIGS.
As shown in FIG. 1, the guide rails 21a formed on the first base 21 along the longitudinal direction thereof are slidably fitted on the upper and lower surfaces thereof. Is formed.

Further, a screw screw hole 22 formed along the longitudinal direction at a vertically intermediate portion between the two guide grooves.
b is formed. A treatment section 30 is provided on the front surface of the second base 22.

A pair of guide shafts 70, 70 provided vertically along the backrest frame (not shown) are formed in both guide holes 21b, 21b formed in the first base 21.
, The first base 21 is mounted along the guide shafts 70, 70, that is, guided and movable in the vertical direction.

In the screw screw hole 21c,
As shown in FIG. 2, a first screw screw shaft (hereinafter referred to as a first screw shaft) 71 having a pulley 72 attached to a lower end side in the drawing is screwed and penetrated, and is also connected to the pulley 72 directly. A belt 74 is hung on a pulley (not shown) attached to the rotating shaft of the first electric motor 73 that rotates in the reverse direction.

When the screw shaft 71 is rotated in the normal or reverse direction, that is, clockwise or counterclockwise by the first electric motor 73 under the control of the control means 44 described later, the first base 21 is moved up and down. Is to be moved to

In this embodiment, the screw screw hole 21c and the screw shaft 71 are right-handed screws.
When the screw shaft 71 rotates in the direction of arrow a (hereinafter, this direction is called clockwise, and the opposite direction is called counterclockwise), the first base 21 moves downward. It is designed to move.

When the first base 21 is pushed, the first electric motor 73 rotates clockwise, and the first base 21 moves downward. (To rotate in the vertical direction and move upward)) can be positioned at a desired position in the vertical direction.

The screw shaft 71 is supported by a bearing (not shown) but not formed with a screw, which is mounted on a backrest frame (not shown), and its axial movement is restricted. The first electric motor 73 is also attached to the backrest frame by attaching means (not shown).

As shown in FIG. 2, a second screw screw shaft (hereinafter referred to as a second screw screw shaft) having a pulley 76 attached to a right end in the figure is inserted into the screw screw hole 22b of the second base 22. A belt 78 is hung around a pulley 77b attached to a rotary shaft 77a of a second electric motor 77 that rotates forward and backward with the pulley 76.

The second motor 22 rotates the screw shaft 75 forward / reverse, that is, clockwise or counterclockwise, so that the second base 22 is moved in the left-right direction. In this embodiment, the screw screw hole 22c and the screw shaft 75
Is a right-hand screw, and when the screw shaft 75 rotates in the direction of arrow b (hereinafter, this direction is called clockwise, and the opposite direction is called counterclockwise), the second base 22 moves rightward, When rotated clockwise, it moves to the left.

When the second base 22 is pushed, the second electric motor 77 rotates clockwise, and the second base 22 moves to the left. (It rotates clockwise and moves to the right)), so that it can be positioned at a desired position in the left-right direction.

The screw shaft 75, like the first screw shaft 71, is supported by a bearing (not shown) but not formed with a screw, which is also mounted on a backrest frame (not shown). The second electric motor 77 is also attached to the backrest frame by attaching means (not shown).

Next, the treatment section 30 provided on the second base 22 will be described. This treatment section 30 is configured as shown in FIG.
As shown in the figure, a cylinder 31 as a cylindrical body, a piston 32 which is a movable body which is movably and airtightly fitted along the axial direction of the cylinder 31 and is a piston portion, and is provided integrally with the piston 32 And the treatment element 33 provided.

The cylinder 31 is formed of a material having a shape-retaining property, and is formed in one end side, that is, in a bottomed cylindrical shape having an open left side in FIG.
1a is formed. An annular flange portion 31c is formed on the peripheral edge of the opening of the cylindrical wall 31b.

Further, a supply / exhaust port 3 is provided at the center of the bottom wall 31d.
1e is formed, and a hose 66a branched from a hose 66 forming a flow path is connected to the supply / exhaust port 31e. The hose 66a is formed by connecting the second base 22 to the first base. When moving along the longitudinal direction of the first base 21, the long holes 21 d, 21 d formed in the first base 21 as described above.
It is designed to move inside.

The piston 32, which is fitted in the cylinder 31 and moves in the axial direction, is made of a material having shape-retaining properties, and is formed in a bottomed cylindrical shape with one end opened as shown in FIG. An annular flange portion 32b is formed on the inner surface of the cylindrical wall 32a near the opening of the opening. The internal space of the piston 32 is
a part of a.

The inner peripheral surface of the annular flange 32b is fitted to the outer peripheral surface of the cylindrical wall 31b of the cylinder 31 so as to slide in an airtight manner, and the inner peripheral surface of the annular wall 32a is An annular flange 31 formed on a cylindrical wall 31b of a cylinder 31
c is fitted so as to slide in an airtight manner on the outer peripheral surface.

The bottom wall 32c of the piston 32 is a working surface on which the pressure of the air supplied to and exhausted from the air chamber 31a acts.

A treatment element 33, which is formed in a protruding shape having a spherical tip at the front side of the bottom wall 32c of the piston 32, is integrally attached to the body 32 to press a treatment portion of the body.

The piston 3 constituting the working surface
Since the area of the second bottom wall 32c is constant, air is supplied into the air chamber 31a,
The piston 32 moves in the axial direction due to the air pressure of the air.
Is constantly adjusted by an adjusting action of a pressure adjusting means 80 described later, so that the force generated in the axial direction of the piston 32 determined by the product of the air pressure and the working surface 32c is always constant. Become.

Since the force generated in the axial direction of the piston 32 is a pressing force applied to the treatment element 33 when massaging the body, the pressing force of the treatment element 33 during massage is always constant. It is.

This is irrelevant to the state in which the treatment element 33 is in contact with the body. Therefore, the treatment section has a curved shape, and the direction in which the treatment section contacts with the movement changes, and the effective pressing area changes. However, the pressing force is always constant. Therefore, the massage effect due to the decrease in the pressing force is impaired.

As shown in FIGS. 2 and 3, the hose 66 is connected to the pressure adjusting means 80 which is connected to the hose 66 and comprises a pressure adjuster. The cylinder 31 of the treatment section 30
This function functions to keep the air pressure supplied to the air chamber 31a constant.

That is, the pressure adjusting means 80 causes the piston 32 to move in the axial direction by the air supplied from the air supply / exhaust device 40 to the air chamber 31a, and the treatment element 33 to press the treatment portion. When the reaction pressure is applied, when the air pressure in the air chamber 31a exceeds a preset value, the regulating valve opens to release the air to the outside, and the air pressure in the air chamber 31a is thus set. It is kept at a value.

Next, the control structure of the massage machine 1 will be described with reference to FIG. As shown in FIG. 5, the air supply / exhaust device 40 includes an air generating unit 41 including an electromagnetic air pump, a valve unit 42 including an electromagnetic valve connected to the air generating unit 41 via a hose 64, A distributor 43 comprising a rotary valve or the like connected to the generating means 41 via a hose 65 for sequentially supplying air to the waist air bags 61 to 63; the air generating means 41; the valve means 42; And a control means 44 composed of a microcomputer or the like for controlling the operation of the computer.

It should be noted that the air supply / exhaust device 40 is shown in FIG.
As shown in the figure, when the back portion is placed on the lower side of the backrest portion 17, that is, on the seat portion 13 side, and when the back portion rests on the backrest portion 17, the backrest portion 17 is disposed on one side outside the region corresponding to the back portion. Is what it is. Note that this may be provided below the seat 13.

Further, one end of a hose 66 as a flow path is connected to the valve means 42, and the other end of the hose 66 is branched into the hoses 66a, 66a as described above, and is connected to the cylinder 31 of the treatment section 30. It is connected. The pressure regulator 80 is connected to an intermediate portion of the hose 66.

The distributor 43 has a hose 61a,
One end of each of the hoses 62a and 63a is connected.
The other ends of 1a, 62a and 63a are connected to the waist airbag 61, the hip airbag 62 and the thigh airbag 63, respectively.

The control means 44 controls the first motor 73 and the second motor 77. The control means 44 receives signals from various control switches on the operation panel 14. The control means 44 controls the air generating means 41, the valve means 42, and the distributor 4 based on signals from the various control switches.
3. It controls the first electric motor 73 and the second electric motor 77.

Next, the operation of the massage machine 1 will be described. The massage mode in the massage machine 1 is a first mode in which the treatment section 30 is operated to massage the treatment section, and the waist airbag 61 or the thigh airbag 63 is inflated and contracted. Mode in which the treatment section is massaged and the treatment section 30
And the inflating and contracting of the waist airbag 61 or the thigh airbag 63 are performed simultaneously to massage the treatment target.

First, the operation in the first mode will be described. In this case, the user sits on the seat 13, leans the back on the backrest 17, and sets the vertical position setting switch 15.
By operating the d and left / right position setting switches 15e, the treatment element 33 is positioned at a desired treatment portion to be massaged, then the first mode is set by the first mode switch 15f, and then the start switch 15b is set. Perform closing operation.

When the start switch 15b is operated, the control means 44 controls the air generation means 41 and the valve means 42. That is, control is performed such that the valve means 42 is opened, that is, communicated with the hose 66, and the air generation means 4 is controlled.
The air from 1 is supplied to the air chamber 31a of the cylinder 31 via the hoses 66 and 66a.

When air is supplied, the air pressure acts on the working surface 32c of the piston 32 to move the piston 32 forward, that is, in the axial direction. The treatment child 3
3 presses the desired treatment section.

When the piston 32 moves a predetermined length forward (this movement length is set by the air supply time), the control means 44 closes the valve means 42, that is, connects the hose 66 to the outside. Control. As a result, the air in the air chamber 31a is exhausted, the piston 32 moves rearward, and the treatment element 33 is released from pressing the treatment target.

The desired operation is massaged by repeating the above operation.
In the case of massaging another treatment target, the massager 33 is operated in the same manner by operating the vertical position setting switch 15d and the left / right position setting switch 15e so as to correspond to the other treatment target.

In addition, when the reaction generated by the treatment element 33 pressing the treated part in the axial movement of the piston 32 increases and exceeds a preset value, the pressure regulating means 80 operates to regulate the pressure. Is done. Therefore, the air pressure applied to the working surface 32c of the air supplied to the air chamber 31a is kept constant, and since the working surface 32c has a constant area, the force generated in the piston 32 is constant, and the pressing element The pressing force for pressing the treatment target 33 is also constant.

This means that, for example, the distal end of the treatment element 33 corresponds to the treatment portion having a curved surface such as a shoulder portion, and the contact area, that is, the effective pressing area, as the treatment element 33 moves forward. Does not change the force applied to the piston 32, the pressing force of the treatment element 33 does not change.

That is, even if the effective pressing area of the treatment element 33 in contact with the treatment portion changes during operation, the pressing force of the pressure element 33 is kept constant and does not decrease regardless of this change. Therefore, the massage effect is not impaired.

Since the cylinder 31 and the piston 32 have shape-retaining properties, the piston 3
2 does not deform in the direction orthogonal to the axial direction when moving, and therefore does not require a guide member or the like for preventing this deformation.

Next, the operation in the second mode will be described. In this case, the user sits on the seat portion 13, leans the back portion against the backrest portion 17, and sets the vertical position setting switch 15d.
By operating the left and right position setting switch 15e, the massager 33 is moved to a position that does not interfere with the massage, such as the position of the neck.

Next, the second mode is set by the second mode switch 15g, and then the start switch 15b is closed.

When the second mode is set by this operation, the control means 44 turns off the valve means 42 and operates the air generation means 41 and the distributor 43. That is, the control means 44 controls the hoses 61a to 63
The distributor 43 is controlled to operate so that the waist airbag 61 to the thigh airbag 63 are inflated and contracted in a predetermined order via a.

The waist or thigh is massaged by the waist air bag 61 or the thigh air bag 63 which expands and contracts in a predetermined order. Since the waist or thigh corresponding to the waist air bag 61 or the thigh air bag 63 is substantially planar, the effective pressing area in the process of inflation hardly changes. In addition, the pressing force of the waist or the thigh, which is the treatment portion of the thigh air bag 63, is kept substantially constant, and the massage effect is not impaired.

Next, the third mode will be described.
In this case, the user sits on the seat portion 13 and first leans the back portion on the backrest portion 17 to set the vertical position setting switch 15d.
By operating the left and right position setting switch 15e, the treatment element 33 is positioned at a desired treatment portion to be massaged.

Next, the third mode is set by the third mode switch 15h, and then the start switch 15b is closed. When the start switch 15b is operated, the control means 44 controls the air generation means 41 and the valve means 4.
2 is controlled to open and close, and air is supplied to and exhausted from the air chamber 31 a of the cylinder 31. By this supply / exhaust, the piston 32 is moved in the axial direction to press the desired treatment target and massage.

The control means 44 operates the distributor 43 at the same time as the valve means 42 to inflate the waist air bag 61 through the thigh air bag 63 by supplying and discharging air in a predetermined order. This causes the waist or thigh to be massaged.

In the third mode as well, the pressing force of the treatment element 33 and the air bag 61 for the waist or the air bag 63 for the thigh on the treatment portion is kept constant, so that the massage effect is obtained. It is not impaired.

As described above, the massage machine 1 has the cylinder 31 having the air chamber 31a and the working surface 32c having a certain area which receives the action of the air pressure supplied to the air chamber 31a. The piston 32 which is moved by the air supplied and exhausted, the piston 3
The hose 6 is connected to the air chamber 31a of the treatment section 30 composed of the treatment element 33 which presses the body through the movement operation of the body 2.
Air is supplied / exhausted from the air supply / exhaust device 40 through the air inlet 6 and the air pressure in the air chamber 31a is adjusted to be constant by the pressure adjusting means 80. Since the pressure is substantially constant and the working surface of the working body is constant, the piston 32
Is constant, and therefore the treatment element 33
A constant pressing force can be applied irrespective of the state of contact of the body with the treatment section, and the massage effect can be improved without impairing the massage effect.

The cylinder 31 and the piston 32
Since the piston 32 has a shape-retaining property, the piston 32 does not bend in a direction different from the axial direction when moving in the axial direction.
Since no means is required to prevent deformation in the direction orthogonal to the axial direction during the movement, the structure is simplified.

In the above-described embodiment, the piston 32 is slidably fitted on the outer periphery of the cylinder 31.
2 may be slidably fitted.
Further, the piston may have a shape other than the bottomed cylindrical shape.

In the above-described embodiment, the air chamber 31a is provided in the cylinder 31, and the working surface 32c on which the air pressure acts is provided in the piston 32. This is achieved by integrally molding a soft synthetic resin. At the time of formation, end plates are provided at both ends in the axial direction, a hollow portion is formed inside the air chamber, and a supply / exhaust port is formed at one end plate of the bellows member that expands and contracts in the axial direction. The treatment element 33 may be attached to the second base 22 and the treatment element 33 may be provided on the other substrate, and this end plate may be used as a working surface for receiving air pressure.

In this case, there is an advantage that the airtightness of the hollow portion formed inside, that is, the air chamber can be improved. However, in the case where the cylinder 31 having shape retention and the piston 32 are slidably provided in the cylinder 31 in the axial direction as in the above embodiment,
As described above, since the piston 32 does not bend in a direction different from the axial direction when moving in the axial direction, the pressing force can be reliably and efficiently transmitted to the treatment element, and the cylinder 3
Since there is no need for a means for preventing deformation in the direction perpendicular to the axial direction or the like during the movement of 2, the structure has the advantage that the structure is simplified.

In the above-described embodiment, the treatment element 33 is configured so as to be positioned corresponding to a desired treatment portion and to perform a pressing operation to perform massage.
The massage may be performed by performing a pressing operation while moving the 3 along the surface of the back part.

In this case, the first motor 73 and the second motor 77 are controlled by the control means 44 to move the first base 21 in the vertical direction and to move the second base 2
In addition to moving the treatment element 33 up and down and left and right by combining the movements in the left and right directions, the treatment element 33 is moved once or several times when it is located at a certain position, and is moved to the next position when this operation is completed. The treatment element 33 may be operated once or several times in the same position, and the operation may be sequentially moved over the entire corresponding area of the back.

If the treatment element 33 is protruded, that is, air is supplied to the air chamber 31a, and the treatment element 33 is moved up, down, left, and right while maintaining this state, massage by so-called rubbing can be performed. It is.

In the above embodiment, the number of the treatment elements 33 is two, but this number can be increased as needed.

In the above embodiment, the waist airbag 61 to the thigh airbag 63 are provided. However, it is not always necessary to provide the waist airbag 61 or the thigh airbag 63, and may be omitted.

In the above embodiment, the case where the present invention is applied to a chair type air massage machine has been described. It can be applied to massage machines.

[0083]

As described above, according to the first aspect of the present invention, the air chamber has an operating surface of a certain area which receives the action of the air pressure supplied to the air supply chamber, and the air is supplied to and exhausted from the air chamber. An operating body that moves by air, a treatment section composed of a treatment element that presses the body through the movement of the operating body, supplies and exhausts air from an air supply and exhaust device through a flow path to the air chamber, Since the air pressure in the air chamber is adjusted to be constant by the pressure adjusting means, the pressure of the air supplied to the air chamber is made constant by the pressure adjusting means. The pressing force generated on the working body by acting on the surface is constant, and therefore, a constant pressing force can be applied regardless of the state of contact of the treatment element with the treatment section of the body.
The massage effect can be improved without impairing the massage effect due to the decrease in the pressing force.

According to a second aspect of the present invention, in the first aspect of the present invention, the air chamber is formed of a cylindrical body having a shape-retaining property, and the operating body is arranged in the axial direction with respect to the cylindrical body. Since the piston body has a shape retaining property to move, since the piston body does not bend in a direction different from the axial direction when moving in the axial direction, the pressing force can be reliably and efficiently transmitted to the treatment element, and Since the cylindrical body and the piston body have shape retaining properties, they do not bend or deform in a direction different from the axial direction when moving in the axial direction. This has the effect of being simple.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment in which the present invention is applied to a chair-type air massage machine.

FIG. 2 is a perspective view showing a related configuration of a treatment section of the chair type air massage machine, a moving mechanism for moving the treatment section, an air supply / exhaust device, and the like.

FIG. 3 is a cross-sectional view of the treatment section and a configuration for supplying air to the treatment section.

FIG. 4 is a perspective view of a first base of the moving mechanism as viewed from the rear.

FIG. 5 is a control block diagram showing a control configuration of the chair type air massage machine.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Chair-type air massage machine (air massage machine) 30 Treatment part 31 Cylinder (tubular body) 31a Air chamber 32 Piston (piston part (operating body)) 32c Working surface 33 Treatment element 40 Air supply / exhaust device 66 Hose (flow path) ) 80 Pressure adjusting means

Continued on the front page F term (reference) 4C074 AA03 AA04 BB05 CC11 CC17 EE01 EE03 EE05 FF01 FF09 GG03 HH02 HH07 HH08 4C100 AD02 AD16 AF02 AF12 AF17 BA03 BA06 BC12 BC14 CA06 CA07 CA08 DA05 DA06 DA10 EA12 EB01

Claims (2)

[Claims] 1. An air chamber, an operating body having a working surface of a certain area which receives the action of air pressure supplied to the air chamber, and moved by air supplied to and exhausted from the air chamber, and a moving operation of the operating body. A treatment unit composed of a treatment element for pressing the body through, an air supply / exhaust device for supplying / exhausting air to / from the air chamber through a flow path, and a pressure adjusting unit for adjusting the air pressure in the air chamber to a constant value An air massage machine comprising: 2. The piston according to claim 1, wherein the air chamber is formed of a cylindrical body having shape retention, and a piston having shape retention for moving an operating body in an axial direction with respect to the cylindrical body. Air massage machine characterized by its body.