JPH07184751A - Air massage device - Google Patents

Abstract

PURPOSE:To provide an air massage device which can carry out the expansion/ contraction of a single air bag among a plurality of air bags and the simultaneous expansion and contraction of several air bags among a plurality of air bags, by one air distribution valve at a low cost. CONSTITUTION:The connection passages 42a-42d which communicate to the respective air bags for massage are installed on a fixed valve body 42, and a movable valve body 44 which slidingly shifts for the fixed valve body 42 is provided. The movable valve body 44 has a communication passage 46 which allows one among a plurality of connection passages 42a-42d to communicate to an air compressor or allows the several among a plurality of connection passages 42a-42d to communicate simultaneously to the compressor according to the turning position and air discharge passages 46, 47 and 48 for allowing the rest communication passages which do not communicate to the air compressor among a plurality of connection passages 42a-42d to communicate to the atmosphere.

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 performing massage by expanding and contracting an air bag.

[0002]

2. Description of the Related Art As an air massager of this type,
For example, a seat-chair type air massager as shown in FIG. 7 is considered.

In the seat-chair type air massager shown in FIG. 7, a backrest portion 2 is attached to a rear edge portion of the seat portion 1 so as to be rotatable back and forth, so that the seat portion 1 and the backrest portion 2 are provided with the backrest portion 2. Multiple air bags 3a
3 to 3f are arranged, and the air supply / exhaust device 4 and the air bags 3a to 3f are connected by air hoses 5a to 5f.

Moreover, in this air massager, the air bags 3a to 3f are inflated and expanded in order by the air supply / discharge device 4.
Although it is designed to be deflated, the air bag 3f and the air bag 3d are inflated and deflated when massaging the shoulders and waist.

[0005]

By the way, in such an air massager, two specific locations, for example, the air bag 3a of the seat portion 2 and the air bag 3d of the backrest portion 1 are simultaneously inflated and deflated. It is conceivable to branch the air hose connected to the air supply / exhaust device 4 and connect it to the air bags 3a, 3d so that air can be supplied to the air bags 3a, 3b at the same time.

However, in this case, 3 air bags are used.
The rolling function of expanding and contracting in the order of a to 3f or in the order of 3f to 3a cannot be provided.

In order to provide a rolling function with this structure, solenoid valves are respectively provided between the branch hose portion of the air hose connected to the air supply / exhaust device 4 and the air bags 3a, 3f. Can be controlled.

However, in this case, an expensive solenoid valve is used.
However, there is a problem in that the cost of the entire apparatus is increased because it is used.

Therefore, in the present invention, a single inflation / deflation of each of the plurality of air bags and some simultaneous inflation / deflation of the plurality of air bags.
It is an object of the present invention to provide an air massager that can be contracted at a low cost with a single air distribution valve.

[0010]

To achieve this object, the present invention provides a body in which a plurality of air bags that are connected to an air supply source through an air distribution valve and are inflated and deflated have a human body contact surface. In an arrayed air massager, the air distribution valve includes a fixed valve body and a movable valve body rotatably provided on the fixed valve body, and the fixed valve body has a plurality of air bags, respectively. A plurality of connecting passages communicating with each other are provided, and one of the plurality of connecting passages is connected to an air supply source, or the plurality of connecting passages are connected to the movable valve body depending on the rotational position thereof. A communication passage that allows some of the connection passages to communicate with the air supply source at the same time, and an exhaust passage that allows the remaining connection passages of the plurality of connection passages that do not communicate with the air supply source to communicate with the atmosphere are provided. Air massager And wherein the door.

[0011]

According to this structure, the communication passage communicating with the air supply source of the movable valve communicates with one of the plurality of connection passages.
By blocking the air bag, the air bag connected to one of the plurality of connecting passages is inflated and deflated.

Therefore, by rolling the air supply source to the plurality of connecting passages sequentially by controlling the movable valve as described above, a rolling massage for sequentially inflating and contracting the plurality of air bags is performed.

On the other hand, a communication passage communicating with the air supply source of the movable valve simultaneously communicates with some of the plurality of connection passages.
By shutting off, a plurality of bladders connected to some of the plurality of connecting passages will be inflated and deflated at the same time.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

1 to 6 show an embodiment of an air massage chair (air massager) according to the present invention.

In FIG. 6, a chair type air massage chair A has a massage chair 10 for massaging the user's body from the thigh to the upper part, and an air supply / exhaust device 20.

<Massage chair 10> Massage chair 1
0 is a seat 11, support legs 12, 12 provided on both sides of the seat 11 to support the seat 11, support legs 12,
12 includes armrests 13 and 13 that are integrally provided and project upward from the seat 11, and a backrest 14 that is mounted on the rear edge of the seat 11 so that it can be tilted back and forth.

In FIG. 6, a1 and a1 are air bags for arms formed in a cylindrical shape, and 13a is a soft pocket provided on the inner surface of the armrest portion 13 for accommodating the air bags a1 and a1. , 15 are operation panels provided on one armrest portion 13.

The seat portion 11 and the backrest portion 14 are configured such that main bodies 11b and 14b holding a cushion of sponge rubber or the like are provided on a frame (not shown) and the main body is covered with a cover (not shown).

(Seat portion 11) A seat made of cloth, which is fixed to the main body 11b of the main body 11b of the seat portion 11 and its cover (not shown), and is provided with an air bag holding pocket. A partial air bag holding sheet (not shown) is provided.
Two air bags a2 and a3 extending in the width direction are held in front and rear portions of the seat air bag sheet.

The air bag a2 located at the foremost part is set to have a larger capacity than the air bag a3 located at the rear part, and the bulging height is set to be larger than that of the air bag a3. Further, the air bag a2 corresponds to the acupoint gate of the acupoint located on the thigh of the human body, and the air bag a3 corresponds to the acupoint of the acupoint located on the buttocks of the human body.

(Backrest 14) Main body 14 of the backrest 14
An air bag holding sheet for backrest made of cloth fixed to the main body between the human body contact surface 14a of b and its cover (not shown) and provided with air bag holding pockets (both not shown)
Is provided.

The backrest air bladder sheet is partially overlapped with the air bladder a4 disposed in the center of the left and right sides across the center line P of the human body contact surface 14a and the front side of the air bladder a4. In addition, air bags a5 and a5 which are independently provided at intervals on the left and right sides of the center line P, air bags a6 which are provided on the left and right center portions across the left and right sides of the center line P, and the center line P. Air bags a7, a independently provided with a space left and right
7, air bags a8 extending across the left and right of the center line P to the vicinity of both sides of the backrest portion 14, air bags a9, a9 independently arranged at the left and right sides of the center line P, and air bags a
Small air bags a10, a1 provided at the opposite ends of 9, a9
Has 0. The small air bag a10 is set to have a volume sufficiently smaller than that of the air bag a9. Air bags a5 and a5
Of the air bag a4 is disposed up to the vicinity of the substantially central portion.

The air bag a4 is for the acupuncture point and the yokan of the acupuncture point located in the center of the waist of the human body, and the air bags a5 and a5 are for the acupuncture points of the acupuncture points on the left and right of the human body. The air bag a6 is located on the abdomen of the acupuncture point and the stomach of the acupuncture point located on the lower back of the human body, and the air bag a7 is located below the shoulder of the human body. The air bag a8 is used for the acupressure points of Shin-yu and Tenso, and the air bags a10 and a10 are for the human body. Corresponds to the acupuncture pillars located at the neck of each.

The air bags a9, a9 are the air bags a10,
When a10 is inflated, it serves as a wall for sandwiching the neck of the human body in stages with the air bags a10, a10.

<Air Supply / Exhaust Device 20> In FIG. 6, 2
0 supplies air to the air bags a1 to a10, or the air bag a
1 to a10 is an air supply / exhaust device that exhausts the air. The air supply / exhaust device 20 is detachably attached to the lower surface of the rear portion of the seat 11.

The air supply / exhaust device 20, as shown in FIG. 4, includes a first rotary valve 30 as air distribution means,
The sensor includes a stepping motor 31 for driving the rotary valve 30 and a position detection means 32 such as a rotary encoder for detecting the rotational position of the rotary valve 30.

The air supply / discharge device 20 has a second rotary valve 40 (air distribution valve), a stepping motor 50 for driving the rotary valve 40, and a position detecting means 6 for detecting the rotational position of the rotary valve 40.
Has 0.

(Rotary Valve 30) This rotary valve 30 has one air supply port (not shown) connected to the air compressor 33 through the filter tank 34 depending on the rotational position of the rotary valve body (not shown). ) And a plurality of connection passages (not shown) to be connected to the air bladder and the like are sequentially and individually connected by a communication passage (not shown) of the rotary valve body, and the remaining connection passages that are not in communication are rotated by the rotary valve. It is designed to be opened to the atmosphere by an air guide passage provided in the body. As a specific configuration of the rotary valve 30, the configuration of the rotary valve disclosed in Japanese Patent Application No. 5-266586 is used.

(Rotary Valve 40) This rotary valve 40 has a bottomed cylindrical case 41 whose end wall 41a is fixed to the end surface of the stepping motor 50 as shown in FIG. 1 (a). An exhaust hole 41b is formed in the case 41. A half-cut circular output shaft 51 of the stepping motor 50 is concentrically arranged in the case 41.

Moreover, the rotary valve 40 includes a fixed valve body 42 (supply / exhaust lid) which closes the open end of the case 41.
Screws 43 fixing the fixed valve body 42 to the case 41,
It has a movable valve element 44 and a spring 45 arranged in the case 41.

A semi-cut circular mounting hole 44a is formed on one surface of the movable valve body 44 as shown in FIG. 1B, and the mounting hole 44a is fitted to the tip of the output shaft 51 so as to be movable in the axial direction. Have been combined. Moreover, the spring 45 is loosely inserted around the outer circumference of the output shaft 51, and is interposed between the movable valve body 44 and the E ring 52 mounted on the output shaft 51 at the intermediate portion thereof. The inner surface of the fixed valve body 42 is lightly pressed.

As shown in FIG. 1 (d), there are four connecting passages 42a, 42 at the periphery of the fixed valve body 42 at intervals of 90 degrees.
b, 42c, 42d are formed, and an air supply passage 42e is formed in the center of the fixed valve body 42. The connection passage 42
a and 42b and 42c and 42d are arranged at an interval of 180 ° from each other.

The movable valve element 44 (air distribution board) has
As shown in FIG. 1 (c), one of the plurality of connection passages 42a, 42b, 42c, 42d is made to communicate with the air compressor 33, which is an air supply source, by its sliding contact movement position.
A communication passage 46 is provided that allows some of the plurality of connection passages 42a, 42b, 42c, 42d to communicate with the air compressor 33 at the same time. The communication passage 46 extends in the radial direction from the central portion and has a pair of air guide grooves 46a and 46b continuously provided at the center at intervals of 90 degrees.
a, 46b communicated at the center with air guide grooves 46a, 4
There is an air guide groove 46c extending radially with a distance of 135 degrees from 6b.

Moreover, the fixed valve body 42 is attached to the movable valve body 44.
Slidingly moves with respect to the plurality of connection passages 42a, 42
An exhaust passage 47 for communicating the rest of the b, 42c, 42d that is not in communication with the air-air compressor 33 with the atmosphere.
48 and 49 are provided. The exhaust passage 47 is located between the air guide grooves 46a and 46b and extends in an elongated shape in the radial direction, and the exhaust passages 48 and 49 are provided in the air guide grooves 46a and 46a, respectively.
A wide portion is formed in the circumferential direction between 46c and between 46b and 46c.

(Position detecting means 60) This position detecting means 6
Reference numeral 0 has an encoder plate 61 fixed to the output shaft 51 of the stepping motor 50, and a light emitting element 62 and a light receiving element 63 arranged at positions sandwiching the peripheral edge of the encoder plate 61 and fixed to the case 41.

The encoder plate 61 has position detection holes b1 to b8 formed at equal intervals in the circumferential direction, and an origin position detection hole c1 for detecting the position detection hole b1 as a reference position. Has been formed.

(Connection of Air Bags a1 to a10) As shown in FIG. 4, hoses h1, h5, h6, h7, h9, h10 are provided in the plurality of connection passages of the rotary valve 30 described above.
Via air bags a1, a5, a6, a7, (a9 and a
10), the air supply passages 42e of the rotary valve 40 are respectively connected. In addition, in the connection passages 42a, 42b, 42c, 42d of the rotary valve 40, the hose h
Air bags a2, a3, a via 2, h3, h4, h8
4, a8 are respectively connected.

<Control Circuit> The stepping motors 31, 50 and the air compressor 33 described above are driven and controlled by the control circuit 100 as shown in FIG. The control circuit 100 includes a microcomputer 101 and interfaces 102, 10 as shown in FIG.
3, 104 and the like. An operation signal from the operation panel 15 (controller) is input to the microcomputer 101 of the control circuit 100 via the interface 102, and the interface 10
Signals from the position detecting means 32 and the light receiving element 63 are input via the signal line 3. The stepping motors 31, 50 and the air compressor 33 are controlled by the microcomputer 101 via the interface 104.

Next, the operation of the air massager having such a structure will be described.

By operating the operation panel 15 to drive and control the stepping motor 31 to drive the rotary valve 30, the filter tank 34 communicating with the air compressor 33 is moved to the air bags a1, a5, a6, a.
7, (a9 and a10), the air supply passage 42e of the rotary valve 40 is sequentially and individually communicated.

As a result, the air from the air compressor 33 is transferred to the air bags a1, a5, a6, a7, (a9 and a1).
0) are sequentially supplied to the air bags a1, a5, a6, a
7, (a9 and a10) are sequentially expanded and contracted.

At this time, the air bags a1, a5, a6, a7,
Those of (a9 and a10) to which air is not supplied are communicated with the atmosphere, and the air inside is discharged into the atmosphere and contracted.

Further, when the filter tank 34 communicating with the air compressor 33 is communicated with the air supply passage 42e of the rotary valve 40, the air bags a1 and a are formed.
5, a6, a7, (a9 and a10) are all opened to the atmosphere and contracted.

In this state, while the operation of the rotary valve 30 is stopped, the stepping motor 50 is driven and controlled based on the position detection signal from the position detecting means 60 to move the movable valve element 44 of the rotary valve 40 at every predetermined angle. By stopping the rotation, the filter tank 34 that communicates with the air compressor 33 is moved to the air bags a2, a3, a4, a8.
To supply the air individually, or the filter tank 34, which communicates with the air compressor 33, is simultaneously connected to some of the air bags a2, a3, a4, a8 and supplies the air simultaneously. It will be. That is, in the case of simultaneous air supply to multiple air bags,
[1], (3), (5), and (7) of [i], and in the case of individual air supply to each air bag, the following [ii] (2), (4), (6) ), (8).

In FIG. 2, b1 to b8 indicated by → on the right side of (1) to (8) are positioning holes detected by the light emitting element 62 and the light receiving element 63, and are indicated by broken lines. The connection ports 42a to 42d indicated by the reference symbols are shown to show the relationship with other portions that do not actually appear in FIG. 2, and are shown in parentheses in correspondence with the connection ports 42a to 42d. The reference numeral indicates an air bag connected to each of the connection ports 42a to 42d.

[I] Simultaneous air supply (1) Simultaneous air supply to the air bags a3 and a4 When the simultaneous air supply to the air bags a3 and a4 is selected by operating the operation panel 15, the control circuit 100 operates the stepping motor 50. The encoder plate 61 is rotated by controlling the operation. As a result, the light receiving element 63 of the position detecting means 60 detects the position detecting holes b1 and c1 (origin position) (that is, the light flux from the light emitting element 62 is received through the position detecting holes b1 and c1 of the encoder plate 61. (Projected onto 63), the control circuit 100 receives the origin position detection signal and stops the stepping motor 50.

At this position, the state shown in FIG. 2 (1) is reached, and the connection passage 42e provided in the fixed valve body 42 is fixed through the air guide grooves 46a and 46b of the communication passage 46 provided in the movable valve body 44. The air from the air compressor 33, which is communicated with the connection passages 42b and 42c of the body 42 at the same time and is guided to the connection passage 42e, is simultaneously supplied to the air bags a3 and a4 and simultaneously swells to the air bags a3 and a4. To be As a result, the buttocks and the center of the waist are massaged at the same time.

At this time, the connection passages 42a and 42d are opened to the exhaust passages 49 and 48, and the air in the air bags a2 and a8 is discharged into the case 41 and then discharged from the exhaust hole 41b to the atmosphere.

(3) Simultaneous air supply to the air bags a2 and a4 When the simultaneous air supply to the air bags a2 and a4 is selected by operating the operation panel 15, the control circuit 100 controls the operation of the stepping motor 50 and the encoder plate. Rotate 61. As a result, when the light receiving element 63 of the position detecting means 60 detects the position detecting hole b3 (the light flux from the light emitting element 62 passes through the position detecting hole b3 of the encoder plate 61, the light receiving element 6).
3), the control circuit 100 receives the position detection signal and stops the stepping motor 50.

At this position, the state shown in FIG. 2 (3) is reached, and the connection passage 42e provided in the fixed valve body 42 is fixed through the air guide grooves 46a and 46b of the communication passage 46 provided in the movable valve body 44. Air from the air compressor 33, which is communicated with the connection passages 42c and 42a of the body 42 at the same time and is guided to the connection passage 42e, is simultaneously supplied to the air bags a4 and a2, and the air bags a2 and a4 are simultaneously expanded. To be As a result, the thigh and the center of the waist are massaged at the same time.

At this time, the connection passages 42b and 42d are opened to the exhaust passages 48 and 49 so that the air in the air bags a3 and a8 is discharged into the case 41 and then discharged from the exhaust hole 41b to the atmosphere.

(5) Simultaneous air supply to the air bags a2 and a8 When the simultaneous air supply to the air bags a2 and a8 is selected by operating the operation panel 15, the control circuit 100 controls the operation of the stepping motor 50 and the encoder plate. Rotate 61. As a result, when the light receiving element 63 of the position detecting means 60 detects the position detecting hole b5 (the light flux from the light emitting element 62 passes through the position detecting hole b5 of the encoder plate 61, the light receiving element 6 is detected).
3), the control circuit 100 receives the position detection signal and stops the stepping motor 50.

At this position, the state shown in FIG. 2 (5) is reached, and the connection passage 42e provided in the fixed valve body 42 is fixed via the air guide grooves 46a and 46b of the communication passage 46 provided in the movable valve body 44. The air from the air compressor 33, which is in communication with the connection passages 42a and 42d of the body 42 at the same time and is guided to the connection passage 42e, is simultaneously supplied to the air bags a2 and a8 and simultaneously swells to the air bags a2 and a8. To be As a result, the thighs and shoulders are massaged at the same time.

At this time, the connection passages 42b and 42c are opened to the exhaust passages 49 and 48 so that the air in the air bags a3 and a4 is discharged into the case 41 and then discharged from the exhaust hole 41b to the atmosphere.

(7) Simultaneous air supply to the air bags a3 and a8 When the operation panel 15 is operated to select simultaneous air supply to the air bags a3 and a8, the control circuit 100 controls the operation of the stepping motor 50 and the encoder plate. Rotate 61. As a result, when the light receiving element 63 of the position detecting means 60 detects the position detecting hole b7 (a light beam from the light emitting element 62 passes through the position detecting hole b7 of the encoder plate 61, the light receiving element 6).
3), the control circuit 100 receives the position detection signal and stops the stepping motor 50.

At this position, the state shown in FIG. 2 (7) is reached, and the connection passage 42e provided in the fixed valve body 42 is fixed through the air guide grooves 46a and 46b of the communication passage 46 provided in the movable valve body 44. The air from the air compressor 33, which is communicated with the connection passages 42d and 42b of the body 42 at the same time and is guided to the connection passage 42e, is simultaneously supplied to the air bags a8 and a3 and simultaneously bulges into the air bags a3 and a8. To be As a result, the buttocks and shoulders are massaged at the same time.

At this time, the connection passages 42c and 42a are opened to the exhaust passages 48 and 49 so that the air in the air bags a4 and a2 is discharged into the case 41 and then discharged from the exhaust hole 41b to the atmosphere.

[Ii] Individual air supply (2) Air supply to air bag a8 only When simultaneous air supply to only air bag a8 is selected by operating the operation panel 15, the control circuit 100 operates and controls the stepping motor 50. To rotate the encoder plate 61. As a result, when the light receiving element 63 of the position detecting means 60 detects the position detecting hole b2 (the light flux from the light emitting element 62 passes through the position detecting hole b2 of the encoder plate 61, the light receiving element 6).
3), the control circuit 100 receives the position detection signal and stops the stepping motor 50.

At this position, the state shown in FIG. 2B is reached, and the connection passage 42e provided in the fixed valve body 42 is fixed to the fixed valve body 4 through the air guide groove 46c of the communication passage 46 provided in the movable valve body 44.
The air from the air compressor 33, which is communicated with the second connection passage 42d and is guided to the connection passage 42e, is supplied to the air bag a8, and only the air bag a8 is inflated.
As a result, only the shoulder portion is massaged.

At this time, the connection passages 42b, 42c, 42a
Is opened to the exhaust passages 48, 47, 49, and the air bags a3,
The air in a4 and a2 is discharged into the case 41, and then is discharged into the atmosphere through the exhaust hole 41b.

(4) Air supply to air bag a3 only When the simultaneous air supply to only air bag a3 is selected by operating the operation panel 15, the control circuit 100 controls the operation of the stepping motor 50 to rotate the encoder plate 61. Let As a result, when the light receiving element 63 of the position detecting means 60 detects the position detecting hole b4 (the light beam from the light emitting element 62 passes through the position detecting hole b4 of the encoder plate 61, the light receiving element 6).
3), the control circuit 100 receives the position detection signal and stops the stepping motor 50.

At this position, the state shown in FIG. 2 (4) is reached, and the connection passage 42e provided in the fixed valve body 42 is connected to the fixed valve body 4 through the air guide groove 46c of the communication passage 46 provided in the movable valve body 44.
The air from the air compressor 33, which is communicated with the second connection passage 42b and is guided to the connection passage 42e, is supplied to the air bag a3, and only the air bag a3 is inflated.
As a result, only the buttocks are massaged.

At this time, the connection passages 42c, 42a, 42d
Is opened to the exhaust passages 48, 47, 49, and the air bags a2,
The air in a4 and a8 is discharged into the case 41 and then discharged from the exhaust hole 41b into the atmosphere.

(6) Air supply to air bag a4 only When simultaneous air supply to only air bag a4 is selected by operating the operation panel 15, the control circuit 100 controls the operation of the stepping motor 50 to rotate the encoder plate 61. Let As a result, when the light receiving element 63 of the position detecting means 60 detects the position detecting hole b6 (the light beam from the light emitting element 62 passes through the position detecting hole b6 of the encoder plate 61, the light receiving element 6 is detected).
3), the control circuit 100 receives the position detection signal and stops the stepping motor 50.

At this position, the state shown in FIG. 2 (6) is reached, and the connection passage 42e provided in the fixed valve body 42 is fixed to the fixed valve body 4 through the air guide groove 46c of the communication passage 46 provided in the movable valve body 44.
The air from the air compressor 33, which is communicated with the second connection passage 42c and is guided to the connection passage 42e, is supplied to the air bag a4, and only the air bag a4 is inflated.
As a result, only the central part of the waist is massaged.

At this time, the connection passages 42a, 42d, 42b
Is opened to the exhaust passages 48, 47, 49, and the air bags a2,
The air in a8 and a3 is discharged into the case 41 and then discharged into the atmosphere through the exhaust hole 41b.

(8) Air supply to air bag a2 only When simultaneous air supply to only air bag a2 is selected by operating the operation panel 15, the control circuit 100 controls the operation of the stepping motor 50 to rotate the encoder plate 61. Let As a result, when the light receiving element 63 of the position detecting means 60 detects the position detecting hole b8 (the light flux from the light emitting element 62 passes through the position detecting hole b8 of the encoder plate 61, the light receiving element 6 is detected).
3), the control circuit 100 receives the position detection signal and stops the stepping motor 50.

At this position, the state shown in FIG. 2 (8) is reached, and the connection passage 42e provided in the fixed valve body 42 is fixed to the fixed valve body 4 via the air guide groove 46c of the communication passage 46 provided in the movable valve body 44.
The air from the air compressor 33, which is communicated with the two connection passages 42a and is guided to the connection passage 42e, is supplied to the air bag a2, and only the air bag a2 is inflated.
As a result, only the thigh is massaged.

At this time, the connection passages 42b, 42c, 42d
Is opened to the exhaust passages 48, 47, 49, and the air bags a3,
The air in a4 and a8 is discharged into the case 41 and then discharged from the exhaust hole 41b into the atmosphere.

[0071]

As described above, according to the present invention, in the movable valve, one of the plurality of connection passages is communicated with the air supply source or the plurality of connection passages is connected to the movable valve depending on the rotation position. A communication passage for communicating some of the connection passages with the air supply source at the same time, and an exhaust passage for communicating the remaining connection passages of the plurality of connection passages not communicating with the air supply source with the atmosphere. Since it is configured such that each of the plurality of air bags is independently inflated and deflated, some of the plurality of air bladders can be simultaneously inflated and deflated with a single air distribution valve.

[Brief description of drawings]

FIG. 1 (a) is a partial sectional view of a rotary valve used in an air massager of the present invention, (b) is a left side view of a movable valve body shown in (a), and (c) is A of (a). -A sectional view taken along line A, (d) is
It is a right view of the air supply / exhaust cover of FIG.

2 (1) to (8) are explanatory views showing a communication state with respect to a connection passage of a communication passage and an exhaust passage due to rotation of the movable valve body shown in FIG. 1 (a).

FIG. 3 is an explanatory diagram of the detection plate shown in FIG.

FIG. 4 is a connection explanatory view showing a relationship between a control circuit of the rotary valve shown in FIG. 1 (a) and an air bladder.

5 is a detailed view of the control circuit shown in FIG.

6 is a perspective view of a massage chair including the air bag shown in FIG.

FIG. 7 is a perspective view of a conventional massage chair.

[Explanation of symbols]

 10 ... Massage chair (massage device) 11 ... Seat portion 11a ... Human body contact surface 11b ... Main body 14 ... Backrest portion 14a ... Human body contact surface 14b ... Main body 33 ... Air compressor (air supply source) 40 ... Rotary valve 42 ... Fixed valve body 42a-42d ... Connection passage 42e ... Air supply passage 44 ... Movable valve body 46 ... Communication passage 47, 48, 49 ... Exhaust passage a1-a10 ... Air bag

Claims (1)

[Claims] 1. An air massager in which a plurality of air bags that are connected to an air supply source via an air distribution valve and are inflated and deflated are arranged and attached to a main body having a human body contact surface, wherein the air distribution valve is fixed. The fixed valve body includes a movable valve body rotatably provided on the fixed valve body, and the fixed valve body is provided with a plurality of connection passages respectively communicating with the plurality of air bags. Depending on its rotational position, one of the plurality of connection passages communicates with the air supply source, or a communication passage that allows some of the plurality of connection passages to communicate with the air supply source at the same time. An air massager is provided, which is provided with an exhaust passage for communicating the remaining connection passage, which is not in communication with the air supply source, of the plurality of connection passages with the atmosphere.