JP2004073236A - Air massage apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air massage apparatus which enables a highly varied massage that makes human bodies feel a plurality of motions by arranging a plurality of air bags. <P>SOLUTION: The plurality of air bags 5a, 5b, 5c and 5d contacting the human bodies are expanded or contracted a plurality of times with a pressure varying range smaller than the pressure difference between the minimum and maximum pressures during the control at each cycle of expanding and contracting them between the minimum and maximum pressures while the phase in the expansion and contraction done the plurality of times is differentiated between some of the air bags and the rest thereof. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an air massage device for performing massage by inflating and contracting an air bag.
[0002]
[Prior art]
Conventionally, by alternately repeating the air supply and exhaust to the air bag, the air bag is inflated and contracted, so that the body is directly or indirectly massaged by fir or tapping. Known air massage devices are known. An example thereof is described in Japanese Patent Application Laid-Open No. 11-29040.
[0003]
In this air massage device, a plurality of airbags are used, and are arranged so as to abut on a plurality of places on the body such as abutting an affected part such as a neck and a back from right and left. Also, instead of monotonically inflating and deflating the airbag as in the conventional air massage device, a device for irregularizing the inflation and deflation pattern of the airbag during one cycle of the inflation and deflation of the airbag has been developed. Had been done.
[0004]
[Problems to be solved by the invention]
However, in this device, since each airbag is inflated and deflated in the same cycle or alternately performs the same operation, it can be felt only as a single movement, and the development of a massage with more change is desired. Was.
[0005]
The present invention has been made in view of such problems existing in the conventional technology. An object of the present invention is to provide an air massage device capable of performing a variety of massages in which a plurality of airbags allow a plurality of movements to be felt.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, an air massage device according to the present invention includes a plurality of air bags that are in contact with a part of a human body while supplying and exhausting air to expand and contract, and pressurized air to the air bags. In an air massage device having an air pump for supplying air and an air tank for accumulating air pressurized by the air pump, the air bag is inflated and contracted between a minimum pressure and a maximum pressure, and at the same time, one of the expansion and contraction During the control of the cycle, all the air bags are inflated and deflated multiple times with a pressure fluctuation width smaller than the pressure difference between the minimum pressure and the maximum pressure, and the phase at the time of the multiple inflation and deflation is changed to some air. It is characterized in that the air bag is different from the remaining air bag.
[0007]
According to the air massage device of the present invention having such a structure, since a plurality of air bags operate simultaneously in different phases, a complex feeling can be given to the affected part, and a massage with an unprecedented change is performed. It becomes possible to avoid getting used to and getting tired of massage by the massage machine.
[0008]
Further, in the air massage device configured as described above, the phase at the time of the plurality of times of inflation and deflation is such that when the pressure of some of the airbags reaches a maximum value, the pressure of the remaining airbags reaches a minimum value. May be different.
With this configuration, the difference in the operation of the airbags acting simultaneously in different phases is increased, and a more varied massage can be performed.
[0009]
In the air massage device configured as described above, the operation of inflating and contracting the air bag between the minimum pressure and the maximum pressure is performed by operating the air pump when inflating the air bag. This may be performed by stopping the exhaust, and when the air bag is contracted, the air pump may be stopped to exhaust the air from the air bag.
With this configuration, the maximum pressure of the airbag can be set without being restricted by the control of inflating and deflating the airbag a plurality of times with a pressure fluctuation width smaller than the pressure difference between the minimum pressure and the maximum pressure, The setting becomes easy.
[0010]
In this case, an on-off valve is provided between the air tank and the air bag, an ejector is provided between the on-off valve and the air bag, and the air bag expands and contracts between a minimum pressure and a maximum pressure. During the cycle, the on-off valve may be controlled to open and close to perform the expansion and contraction a plurality of times.
With this configuration, the pressurized air several times as large as the pressurized air supplied from the air tank can be supplied to the airbag. Therefore, the speed at which the airbag is inflated can be increased, and the airbag can be pulsated at a high speed. Further, the size of the air tank can be reduced. Further, an exhaust valve required for exhausting the air bag can be omitted, and the supply and exhaust circuit can be simplified. Further, by reducing the size of the air tank and simplifying the supply / exhaust circuit, the size of the air massage device can be reduced.
[0011]
In addition, the cycle of inflating and contracting the air bag between the minimum pressure and the maximum pressure is performed by continuously operating the air pump to constantly or intermittently connect the air tank or the air bag to the outside via the throttle valve. When inflating the airbag, the airbag is supplied with air supply from the air pump, and when the airbag is contracted, air supply from the air pump to the airbag is cut off. You can also do so.
According to this structure, the maximum pressure (hereinafter referred to as the peak pressure of the airbag) during a plurality of inflation / deflations during one cycle of controlling the inflation / deflation of the airbag between the minimum pressure and the maximum pressure is not constant. The massage can be changed smoothly, and a massage having a combination of a fir massage and a hit massage can be performed.
[0012]
Further, when a cycle of inflating and contracting the air bag between the minimum pressure and the maximum pressure is formed as described above, the air bag is always communicated with the outside via the throttle valve, and the air bag and the air bag are connected to each other. An on-off valve may be provided in between, and the inflation and contraction may be performed a plurality of times by controlling the on-off valve to open and close.In addition, a throttle valve is provided between an air tank and an air bag, and An opening / closing valve is provided in an exhaust pipe for discharging air from the bag, and by opening / closing the opening / closing valve, the air tank is intermittently connected to the outside together with the airbag. You may make it do.
With such a configuration, as described above, the peak pressure of the airbag can be changed smoothly instead of being constant, and a changing massage that combines a fir massage and a hit massage can be realized. .
[0013]
Further, the above-described throttle valve may be a flow control valve with a variable opening.
With this configuration, the maximum pressure of the airbag can be changed by changing the opening of the flow control valve. From soft massage to strong massage can be realized.
[0014]
Moreover, the same part of the body may be massaged by the part of the airbag and the remaining airbag.
According to this structure, the same affected part can be massaged by an air bag that performs different operations, and the pleasure can be improved.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
A first embodiment in which the present invention is embodied in a small-sized hand-held air massage device for a part of the body such as a leg and an arm will be described with reference to FIGS. FIG. 1 is a supply / exhaust circuit diagram of the air massage apparatus according to Embodiment 1 of the present invention. FIG. 2 is a configuration diagram of a portion where the leg airbag is arranged in the air massage device. FIG. 3 is a time chart of the expansion and contraction of the air bag in the air massage device. FIG. 4 is a basic circuit diagram of a supply / exhaust circuit in the air massage device. FIG. 5 is an enlarged view of an ejector used in a supply / exhaust circuit of the air massage device.
Further, the air massaging apparatus according to the first embodiment has a feature in the air supply / exhaust circuit as compared with the conventional air massaging apparatus. Therefore, the air supply / exhaust circuit forming this characteristic portion will be mainly described below.
[0016]
As shown in FIG. 1, the air supply / exhaust circuit in the air massage device includes an air pump 1 that generates compressed air, and an air tank 2 that stores compressed air is connected to a discharge side of the air pump 1. . A parallel circuit in which on-off valves 3a and 3b such as electromagnetic on-off valves, ejectors 4a and 4b, and air bags 5a and 5b are connected in series is connected to the air tank 2. A single on-off valve 3c such as an electromagnetic on-off valve and an ejector 4c are connected to the air tank 2 in parallel with the above circuit, and a plurality of (two in FIG. 1) air bags 5c are connected to the ejector 4c. , 5d are connected in parallel. In FIG. 1, the arrows indicate the flow of air, the air bags 5a and 5b are in the exhausted state, and the air bags 5c and 5 are in the air supply state.
[0017]
Therefore, as shown in FIG. 4, the basic circuit in the supply / exhaust circuit is one in which an air pump 1, an air tank 2, an on-off valve 3, an ejector 4, and an air bag 5 are connected in series. The systemized system is the supply / exhaust circuit of FIG. Hereinafter, the on-off valve 3 means a general term or each of the on-off valves 3a, 3b, and 3c. Similarly, the term “ejector 4” means the general term or individual terms of the ejectors 4a, 4b, 4c, and the term “airbag 5” means the general term or individual terms of the airbags 5a, 5b, 5c, 5d.
[0018]
The air pump 1 is operated at a predetermined cycle Ta by a control device (not shown), and is operated so as to be stopped after a predetermined time ta.
[0019]
The ejector 4 receives the supply of the primary pressurized air from the air tank 2 by opening the on-off valve 3, and causes the primary pressurized air to be ejected from the nozzle 41. As a result, a negative pressure chamber 42 is formed inside the ejector 4, and ambient air is sucked from the suction port 43 (see FIG. 5). Further, the ejector 4 mixes the air ejected from the nozzle 41 and the air sucked in from the suction port 43 and raises the pressure in the diffuser 44 to produce secondary pressurized air. Supply to 5. Ejector 4, by acting in this way, by supplying secondary compressed air several times the primary pressurized air supplied from the air tank 2 to the airbag 5, the airbag 5 to a predetermined pressure P ₀ Can be rapidly expanded.
[0020]
When the air in the air bag 5 is exhausted, the supply of the primary pressurized air from the air tank 2 to the ejector 4 is cut off by closing the on-off valve 3, and at the same time, the air bag 5 4 open to the surroundings via the suction port 43 (see FIG. 1). Therefore, the air bag 5 is automatically exhausted only by closing the on-off valve 3.
[0021]
As the on-off valve 3, a commonly used electromagnetic on-off valve is used, but another type may be used. The on-off valve 3 is closed at a predetermined cycle Tb while the air pump 1 is operating.
[0022]
In the air massage device of the present embodiment provided with the air supply / exhaust circuit having the above configuration, the airbag 5 is inflated and contracted by the control device (not shown) as shown in the time chart of FIG. This will be specifically described below.
The air pump 1 is operated at a predetermined cycle Ta. Further, the air pump 1 is stopped at time ta from the start of operation. Thus the air bag 5, expansion and contraction is performed between the zero pressure and maximum pressure P _0. When the air pump 1 is operated with the on-off valve 3 opened and the internal pressure of the air bag 5 reaches a predetermined pressure P ₀ , the on-off valve 3 is closed at a predetermined cycle Tb for a predetermined time tb to close the air bag 5. The inside air is exhausted, and then the on-off valve 3 is opened to supply air to the air bag 5. Thus, when controlled by a control device (not shown) of the air pump 1 and the opening and closing valve 3, that arising pulsations of the pressure variation width P ₁ and the peak value P ₀ (expansion and contraction) as shown in Figure 3 it can. When the air bag 5 is inflated, since the air is supplied to the air bag 5 by the ejector 4, the amount of air supplied to the air bag 5 increases, and the pressure rise time of the air bag 5 decreases. Therefore, the pulsation cycle Tb of the pressure of the airbag 5 can be shortened.
[0023]
In this embodiment, as shown in FIG. 3, the pulsation of some of the airbags 5a and 5b and the pulsation of the remaining airbags 5c and 5d have the same waveform. When the pressure of the air bag 5c has a minimum value, the phases of the airbags 5c and 5d are different so as to have a maximum value.
[0024]
The airbags 5a to 5d configured as described above are in contact with the body as shown in FIG. In FIG. 2, reference numeral 8 denotes a frame for receiving a leg in the air massage device, and reference numeral 9 denotes a leg of the body. As shown in this figure, the airbags 5a and 5b are arranged so as to contact the calf of the leg from both sides, and the airbags 5c and 5d are arranged so as to contact the both sides in front of the leg. Therefore, a pulsating pressure massage having different phases can be simultaneously received by the plurality of airbags 5a, 5b, 5c, and 5d to the affected leg.
[0025]
According to the present embodiment configured as described above, the following effects can be obtained.
(1) Since the plurality of airbags 5a, 5b, 5c, and 5d operate simultaneously in different phases, a complex feeling can be given to the affected part, and a massage that has never been changed can be performed. It can avoid getting used to and getting tired of massage.
[0026]
(2) The plurality of airbags 5a, 5b, 5c, and 5d have different phases so that the remaining airbags 5a and 5b have the minimum value when the pressure of the airbags 5c and 5d is at the maximum value. As a result, the difference in the operation of the airbags acting simultaneously in different phases is increased, and a more varied massage can be performed.
[0027]
(3) In this embodiment, the air bag 1 is turned on and off to expand and contract the air bag between the minimum pressure and the maximum pressure. it is possible to set the maximum pressure P ₀ of the air bag 5 regardless of the operating of the valve 3.
[0028]
(4) In this embodiment, an on-off valve 3 is provided between the air tank 2 and the air bag 5, an ejector 4 is provided between the on-off valve 3 and the air bag 5, and the on-off valve 3 is provided. Since each airbag 5 is pulsated by opening and closing control, pressurized air several times as large as pressurized air supplied from the air tank 2 can be supplied to the airbag 5. Therefore, the speed at which the airbag 5 is inflated can be increased, and the airbag 5 can be pulsated at a high speed. Further, the size of the air tank 2 can be reduced. Further, an exhaust valve required for exhausting the air bag 5 can be omitted, and the supply and exhaust circuit can be simplified. In addition, by reducing the size of the air tank 2 and simplifying the supply / exhaust circuit, the size of the air massage device can be reduced.
[0029]
(5) In addition, since the airbags 5a and 5b and the airbags 5c and 5d pulsating in different phases massage the same part of the body (in this case, the leg), different operations are performed on the same affected part. Massage can be performed by the air bag, which can improve pleasure.
[0030]
Embodiment 2 FIG.
Next, a second embodiment will be described with reference to FIGS. FIG. 6 is a basic circuit diagram constituting a supply / exhaust circuit diagram of the air massage device according to Embodiment 2 of the present invention. FIG. 7 is a supply / exhaust circuit diagram of the air massage apparatus according to Embodiment 2 using the basic circuit of FIG. FIG. 8 is a time chart of the inflation and contraction of the air bag in the air massage device.
[0031]
In the second embodiment, the basic circuit (see FIG. 4) in the above-mentioned conventional example 1 is changed to a basic circuit as shown in FIG.
[0032]
In this basic circuit, an air pump 11, an on-off valve 12, an air tank 13, a control valve 14, and an air bag 15 are connected in series, and an exhaust valve 17 is connected to a pipe 16 connecting the control valve 14 and the air bag 15. Things.
[0033]
As shown in FIG. 7, the supply / exhaust circuit corresponding to FIG. 1 using this basic circuit has an on-off valve 12 and an air tank 13 sequentially connected to the discharge side of an air pump 11. Then, control valves 14a, 14b and air bags 15a, 15b are connected in series to the air tank 13 by pipes 16a, 16b, and a plurality of circuits (exhaust valves 17a, 17b) are connected to the pipes 16a, 16b. (2 in FIG. 6). Further, one control valve 14c and one pipe 16c are connected to the air tank 2 in parallel with the above circuit, and an exhaust valve 17c is connected to the pipe 16c. The airbags 15c and 15d (two in FIG. 6) are connected in parallel.
[0034]
In the following description, the control valve 14 means a general term or individual control valves 14a, 14b, 14c. Similarly, the exhaust valve 17 means the general name or individual of the exhaust valves 17a, 17b, 17c, and the air bag 5 means the general name or individual of the air bags 5a, 5b, 5c, 5d. .
[0035]
In the supply / exhaust circuit, the on-off valve 12 is an electromagnetic on-off valve that completely shuts off the flow of air in the closed state. However, the present invention is not limited to this, and the on-off valve 12 allows a constant flow of air in the closed state. May be.
[0036]
The control valve 14 uses a throttle valve or an on-off valve. When a throttle valve is used as the control valve 14, the exhaust valve 17 is an on-off valve. When an on-off valve is used as the control valve 14, the exhaust valve 17 is used as a throttle valve. Further, the throttle valve mentioned here may be a fixed throttle with a fixed opening or a flow control valve with a variable opening.
[0037]
The air pump 11 is continuously operated during the operation of the air massage device.
Therefore, in supply and exhaust circuit in this embodiment, the hydrodynamic balance of the exhaust volume in the pump capacity and the throttle valve or flow control valve of the air pump 11, the maximum pressure P ₀ of the air tank 13 and the air bag 15 is given Set to be value. In other words, the opening of the throttle valve or the flow control valve may be set so that the maximum pressure P ₀ of the air bag 15 becomes a predetermined value. Further, when using the variable opening of the flow control valve without using a throttle opening fixed, it is possible to set the maximum pressure P ₀ by to select the degree of opening of the flow control valve as appropriate .
[0038]
The air massage device of the present embodiment including the air supply / exhaust circuit having the above configuration is operated by a control device (not shown) so that the airbag 5 expands and contracts as shown in a time chart of FIG. More specifically, by opening and closing the on-off valve 12 connected between the air pump 11 and the air tank 13 at a predetermined cycle T2a, the air bag 15 is changed from a minimum pressure (pressure 0) at a predetermined cycle T2a. it can be expanded and contracted up to the maximum pressure P _0.
When an on-off valve is used as the control valve 14, the on-off valve is opened and closed at a cycle T2b shorter than the cycle T2a. In this case, it is closed after opening for a predetermined time t2b. When an on-off valve is used as the exhaust valve 17, the on-off valve is opened and closed at a cycle T2b shorter than the cycle T2a. In this case, the circuit is closed and then opened for a predetermined time t2b. By opening and closing the on-off valve used in this way as the control valve 14 or the exhaust valve 17 causes faster pulsation minimum pressure and a small pressure fluctuation width P ₁ than the pressure difference between the maximum pressure the pressure of the air bag 15 (expansion and contraction) be able to. Further, the maximum value at this time pulsating pressure rather than a constant maximum pressure P _0, smoothly wave.
[0039]
The pressure change rate in the cycle in which the air bag 15 expands and contracts between the minimum pressure 0 and the maximum pressure P ₀ is moderated by the air tank 13. That is, the speed of the pressure change of the air bag 15 changes according to the volume of the air tank 13. Therefore, as the volume of the air tank 13 is larger, it takes time to increase or decrease the pressure of the air bag 15, and the predetermined period T2a becomes longer.
[0040]
Further, when the on-off valve used as the control valve 14 or the exhaust valve 17 is opened and closed at a cycle T2b shorter than the cycle T2a, and the predetermined time t2b for opening or closing the above-mentioned on-off valve used as the control valve 14 or the exhaust valve 17 is set longer. , the pressure of the air bag 15 is closed as soon became maximum pressure P ₀ rather than raising the pressure drop constant between the air bag 15 as shown in FIG. 8 can be maintained at a maximum pressure P ₀ It becomes.
[0041]
Further, the pressure fluctuation width P ₁ of the pressure of the air bag 5, the opening degree of the throttle valve or flow control valve used in the control valve 14 or the opening and closing cycle of the on-off valve used in the exhaust valve 17 T2b and the control valve 14 or the exhaust valve 17 Controlled.
[0042]
Also in the second embodiment, as in the first embodiment, the pulsation of some of the airbags 15a and 15b and the pulsation of the remaining airbags 15c and 15d have the same waveform. When the pressures of the bags 15a and 15b have a minimum value, the air bags 15c and 15d have different phases so as to have a maximum value.
[0043]
According to the air massage device described in the second embodiment configured as described above, the same effects as the effects (1), (2), and (5) described in the first embodiment can be obtained.
According to the second embodiment of the above configuration, the following effects can be obtained.
(1) A cycle in which the air bag 15 is inflated and contracted between the minimum pressure and the maximum pressure is performed by opening the air tank 13 or the air bag 15 to the atmosphere via a throttle valve (a throttle valve as the control valve 14 or the exhaust valve 17). Is formed by intermittently supplying air from the air pump 11 to the air bag while the air pump 11 is continuously operated, so that the air bag 15 is connected between the minimum pressure and the maximum pressure. The maximum pressure (hereinafter, referred to as the peak pressure of the air bag 15) during a plurality of times of inflation / deflation during the control of one cycle of inflation / deflation can be changed smoothly rather than constantly, and the fir massage and the hit massage are combined. Such a varied massage can be performed.
[0044]
(2) When a flow control valve having a variable opening is used as the control valve 14 or the exhaust valve 17 instead of using a fixed throttle, the opening of the flow control valve is changed to obtain a wave the maximum pressure P ₀ of the pressure of the air bag 5 can be intensity changes. Therefore, it is possible to realize from a soft massage to a strong massage.
[0045]
Embodiment 3 FIG.
In the second embodiment, the exhaust valve 17 is connected to the pipe 16 connecting the control valve 14 and the airbag 15, but in the third embodiment, the exhaust valve 17 is directly connected to the airbag 15. It is. The third embodiment operates in the same manner as the second embodiment, and can achieve the same effects.
[0046]
【The invention's effect】
According to the air massage device of the present invention, a plurality of air bags that are in contact with a part of a human body while supplying and exhausting air to expand and contract, an air pump that supplies pressurized air to the air bags, In an air massage device having an air tank that accumulates air pressurized by a pump, an air bag is inflated and contracted between a minimum pressure and a maximum pressure. The air bag is inflated and contracted a plurality of times with a pressure fluctuation width smaller than the pressure difference between the minimum pressure and the maximum pressure, and the phase at the time of the inflation and contraction of the plurality of times is compared with a part of the air bag and a remaining air bag. In this way, the multiple airbags operate simultaneously in different phases, giving a complex feeling to the affected area, making it possible for It is possible to perform the surge, it is possible to avoid the familiar and tired of massage by a massage machine.
[Brief description of the drawings]
FIG. 1 is a supply / exhaust circuit diagram of an air massage device according to Embodiment 1 of the present invention.
FIG. 2 is a configuration diagram of a portion where an airbag for a leg is arranged in the air massage device.
FIG. 3 is a time chart of inflation and contraction of an air bag in the air massage device.
FIG. 4 is a basic circuit diagram of a supply / exhaust circuit in the air massage device.
FIG. 5 is an enlarged view of an ejector used in a supply / exhaust circuit of the air massage device.
FIG. 6 is a basic circuit diagram constituting a supply / exhaust circuit diagram of an air massage device according to Embodiment 2 of the present invention.
FIG. 7 is a supply and exhaust circuit diagram of an air massage device according to a second embodiment of the second embodiment using the basic circuit of FIG. 6;
FIG. 8 is a time chart of expansion and contraction of an air bag in the air massage device.
FIG. 9 is a basic circuit diagram of a supply / exhaust circuit of an air massage device according to Embodiment 3 of the present invention.
[Explanation of symbols]
1 air pump 2 air tank 3, 3a, 3b, 3c on-off valve 4, 4a, 4b, 4c ejector 5, 5a, 5b, 5c, 5d air bag 11 air pump 12 on-off valve 13 air tank 14, 14a, 14b, 14c control valves 15,15a, 15b, 15c, 15d airbag 16, 16a, 16b, 16c pipe 17, 17a, 17b, 16c exhaust valve _{P 0} the maximum pressure

Claims (9)

Supplying and discharging air to expand and contract air, a plurality of airbags that come into contact with a part of the human body, an air pump that supplies pressurized air to the airbag, and accumulates air that is pressurized by the air pump In an air massage device provided with an air tank, while inflating and deflating an air bag between a minimum pressure and a maximum pressure, during the control of one cycle of this inflation and contraction, all air bags are brought into a minimum pressure, a maximum pressure and a maximum pressure. A plurality of inflates and contracts with a pressure fluctuation width smaller than the pressure difference, and a phase at the time of the inflates and contracts a plurality of times is made different between some airbags and the remaining airbags. Air massage device. The phase of the plurality of times of inflation / deflation is varied so that when the pressure of some of the airbags reaches a maximum value, the pressure of the remaining airbags reaches a minimum value. The described air massage device. The operation of inflating and deflating the air bag between the minimum pressure and the maximum pressure is performed by operating an air pump to stop exhausting air from the air bag when inflating the air bag. 3. The air massage device according to claim 1, wherein the air massage is performed by stopping the air pump and exhausting the air from the air bag. An open / close valve is provided between the air tank and the air bag, and an ejector is provided between the open / close valve and the air bag. During one cycle in which the air bag expands and contracts between the minimum pressure and the maximum pressure, this open / close operation is performed. The air massage device according to claim 3, wherein the plurality of times of expansion and contraction are performed by controlling opening and closing of a valve. In the cycle of inflating and contracting the air bag between the minimum pressure and the maximum pressure, the air pump is continuously operated, and the air tank or the air bag is constantly or intermittently communicated with the outside via the throttle valve. When inflating the bag, it is performed by allowing air supply from the air pump to the air bag, and when inflating the air bag, it is performed by shutting off air supply from the air pump to the air bag. The air massage device according to claim 1 or 2, characterized in that: The air bag is always communicated with the outside via a throttle valve, and an opening / closing valve is provided between the air tank and the air bag, and the opening / closing control of the opening / closing valve causes the plural times of inflation and contraction. The air massage device according to claim 5, wherein: A throttle valve is provided between the air tank and the air bag, and an open / close valve is provided in the exhaust pipe that discharges air from the air bag.The open / close valve opens and closes the air tank with the air bag intermittently to the outside. 6. The air massage device according to claim 5, wherein the plurality of expansions and contractions are performed by opening and closing the on-off valve. The air massage device according to any one of claims 5 to 7, wherein the throttle valve is a flow control valve having a variable opening. The air massage device according to any one of claims 1 to 8, wherein the part of the airbag and the remaining airbag are formed so that the same part of the body can be massaged.

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