JP2001258966A - Cosmetology and health appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide cosmetology and a health appliance the reliability of which is high, and the price of which is comparatively low, and wherein a variation can be applied in modes such as a massage mode, a beauty-treatment mode, or a vibration mode. SOLUTION: This cosmetology and health appliance is equipped with an air-compressing device 10, buffer chambers 12 and 14, a plurality of air bags AB1 to AB5, a solenoid type electromagnetic valve device SV, and a control device. In this case, the buffer chambers 12 and 14 store air from the air- compressing device 10. In the plurality of air bags AB1 to AB5, the air from the buffer chambers is filled. The solenoid type electromagnetic valve device SV is arranged for respective air bags in order to control the coming-in/going- out of the air from the buffer chambers to respective air bags. By driving the control device, the feeding and the discharging of the air to/from respective air bags are controlled, and thus, the massage mode, the beauty-treatment mode and the vibration mode are obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beauty and health appliance using a solenoid type solenoid valve device.

[0002]

2. Description of the Related Art An air massager employs a rotary motion using a motor as an air distribution mechanism. This method is
Since the mechanism is simple, it is highly reliable and can be manufactured at relatively low cost. However, it was difficult to make a change in the air distribution movement due to the constant speed rotation movement.

On the other hand, in an air massager, it is required to change modes such as a massage mode, an esthetic mode, and a vibration mode with high reliability and relatively low price.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a massage mode, an esthetic mode, a vibration mode, and the like with high reliability and relatively low cost. It is an object of the present invention to provide a beauty and health device that can change the mode.

[0005]

According to a first aspect of the present invention, there is provided a beauty and health appliance comprising an air compressor, a buffer chamber for storing air from the air compressor, and a plurality of air bladders into which air from the buffer chamber enters. A solenoid-operated solenoid valve device provided for each air bag to control the flow of air into and out of each air bag from the buffer chamber, and to control opening and closing of the solenoid-operated solenoid valve device. Thus, by driving the control device, the supply and exhaust of air to each of the air bladders are controlled to obtain the massage mode, the beauty mode, and the vibration mode.

In the beauty and health equipment according to claim 2, the massage mode controls the control device to supply / exhaust air to / from the first air bag and then supply / exhaust air to / from the second air bag. And thereafter sequentially supply and exhaust air to and from the n-th air bag in the same manner.

In the beauty and health equipment according to claim 3, in the beauty treatment mode, the controller controls the control device to supply air to the first air bag, supply air to the second air bag, and so on. The air supply to the n-th air bag is sequentially performed, and then the air inside the n-th air bag is exhausted from the first air bag simultaneously or sequentially.

[0008] In the beauty and health equipment according to claim 4, the vibration mode controls the control device to supply air to the first air bag, supply air to the second air bag, and so on. The air in the n-th air bag is sequentially supplied to the n-th air bag, and then a small amount of air inside the n-th air bag is evacuated simultaneously or sequentially from the first air bag. Simultaneously or sequentially, a small amount of air is supplied, and then the air inside the n-th air bag is exhausted from the first air bag.

In the beauty and health equipment according to the fifth aspect, the air supply / exhaust distribution of the air bladder is performed with a substantially constant tightening pressure such that the pressure does not sequentially decrease or increase by repeating the operation of the air bladder. It is characterized in that it is set to be

According to a sixth aspect of the present invention, there is provided a beauty and health device, comprising: an air compression device; a buffer chamber for storing air from the air compression device; a plurality of air bags into which air from the buffer chamber enters; The solenoid-operated solenoid valve device provided for each air bag to control the flow of air into and out of each air bag, and the solenoid-operated solenoid valve device are configured as follows and perform the air flow. And first and second fittings at both ends, a plunger which moves up and down by electromagnetic action, and a first stopper made of an elastic member having a hollow fitted into the first fitting. A body, a second stopper made of an elastic member having a hollow fitting into the second fitting, and the first stopper and the second stopper are arranged at a predetermined interval. Opening and closing of the solenoid solenoid valve device And a control device for controlling, thus, the air supply and massage mode by controlling the exhaust to each of the air bag by driving the control device, beauty mode, vibration mode is obtained.

According to a seventh aspect of the present invention, there is provided a beauty and health device, comprising: an air compression device; a buffer chamber for storing air from the air compression device; a plurality of air bags into which air from the buffer chamber enters; The solenoid-operated solenoid valve device provided for each air bag to control the flow of air into and out of each air bag, and the solenoid-operated solenoid valve device includes An opening for fitting, a fitting body at one end, a plunger that moves up and down by electromagnetic action, and a stopper made of an elastic member having a hollow for fitting to the fitting body; A control device for controlling opening and closing, and thus controlling the supply and exhaust of air to each of the air bladders by driving the control device, a massage mode, an esthetic mode, and a vibrator. Activation mode can be obtained.

[0012] In the beauty and health equipment according to claim 8, the buffer room is divided into a plurality of parts.

According to a ninth aspect of the present invention, in the beauty and health equipment, the buffer chamber has an exhaust hole for discharging air from the air bag.

According to a tenth aspect of the present invention, the solenoid solenoid valve device further comprises an exhaust hole for discharging air from the air bag.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a beauty and health appliance using a solenoid type solenoid valve device according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing the configuration of a beauty and health device. In the figure, the air pump 10
Creates compressed air to supply air to the bladder. The supply amount of the compressed air from the air pump is set to a predetermined value in advance. Once the power is turned on, the air supply is continuously driven unless the power is turned off, and the supply amount is not changed during operation. .

The buffer chambers 12 and 14 for temporarily storing compressed air are divided into two and disposed. Solenoid-operated solenoid valve devices SVA, SVB are provided in conduits CA, CB connecting the air pump and the respective buffer chambers, and turn on and off air supply from the air pump. Although the buffer chamber is divided economically, it may be constituted by one buffer chamber.

The buffer chamber 12 includes supply / discharge conduits C1, C3 and C5 corresponding to the number of air bags 1; AB1, air bags 3; AB3, air bags 5; and AB5. Further, an exhaust conduit CC is provided. Buffer chamber 14 is air bag 2; AB
2, air bag 4: supply / discharge conduit C corresponding to the number of installed AB4
2, C4. Further, an exhaust conduit CD is provided.
The buffer chamber may be provided with a pressure sensor 58 for detecting the pressure inside the buffer chamber.

The supply / discharge conduits C1 to C1 connecting the air bags (1 to 5) with the buffer chambers 12 and 14 are provided.
C5 is provided with solenoid type solenoid valves SV1 to SV5. Solenoid solenoid valves SVC and SVD are connected to the exhaust conduits CC and CD. The opening and closing times of the solenoid type solenoid valve devices (SV1 to SV5, SVC, SVD) are controlled by an electric control device (not shown).

Hereinafter, the structure of the solenoid type solenoid valve device will be described with reference to FIGS. Here, FIG. 2 shows a case where the air flow is cut off, and FIG. 3 shows a case where the air flow is generated.

In the figure, a solenoid type solenoid valve device 2
Numeral 0 stores the following configuration in a plastic housing body 22. The housing body 22 has two openings 24-1 and 24-2 through which air enters and exits. When the solenoid type solenoid valve has an exhaust function, three openings are provided. Opening 24-1,
24-2 are each connected to a conduit (not shown).

The first valve component 26 includes a first stopper 28 made of an elastic member and having a hollow, and a first fitting 30 fitted to the first stopper 28. It is composed. The second valve component 32 includes a second stopper 34 made of an elastic member and having a hollow, and a second fitting 36 fitted to the second stopper. . First
And the fitting bodies 30 and 36 of the electromagnetic driving device 3
8 are respectively attached to the core rods of the plunger 40.

The first and second stoppers are made of an elastic member such as rubber and have a thickness of 1.0 mm. In this way, when the fittings 30, 36 engage the stops 28, 34 and the plunger moves upward or downward, the stops can elastically deform upward or downward. Have the ability. FIG. 2 shows a state where the second stopper is deformed downward, and FIG. 3 shows a state where the first stopper is deformed upward. Having this capability, it can have other elastic materials or thicknesses, not limited to rubber. Further, a plurality of stoppers may be formed by stacking.

Furthermore, the diameter of the hollow formed in the first and second stoppers has a length that allows the cones of the first and second coupling bodies to be fitted. The first and second
Has a plastic cone shape. The second fitting body and the second fitting body have cones attached in opposite directions to each other. In addition, it is preferable that the heads of the cones constituting the first and second fitting bodies project from the hollows of the first and second stoppers.

The first valve member 26 and the second valve member 32 are arranged at a predetermined interval. That is, the first stopper 28 and the second stopper 34 are attached to the housing at predetermined intervals.

Here, the predetermined interval is set such that when one of the fittings is inserted into the hollow of one of the stoppers and the stopper is elastically deformed upward or downward to form a fitting state, Is the distance that the fitting body can be separated from the hollow of the other stopper.

The electromagnetic driving device 38 includes a plunger 40 and a solenoid 42. The solenoid 42 includes:
A hole 44 is provided at a central position in the longitudinal direction. The lower end of the longitudinal hole 44 forms an air escape hole 46. Thus, the plunger 40 moves up and down in the hole by electromagnetic action. The plunger 40 has a coil spring 48 inserted between the second stopper plate and the upper surface of the solenoid.

Further, the coil spring 48 has first and second contact plates 50 and 52 at the upper and lower ends thereof, and the first contact plate is in contact with the stopper of the second valve component. On the other hand, the second contact plate contacts the upper surface of the solenoid.

As shown in FIG. 4, the housing body is provided with a first holding member 54 for pressing the first and second stoppers, respectively, as shown in FIG. And a second pressing member 56 is disposed between the second stopper and the upper surface of the solenoid, respectively. The first and second holding members 54 and 56 are hollow cylindrical members fitted into the housing.

When air is to flow between the first opening 24-1 and the second opening 24-2, first, as shown in FIG. 3, the solenoid is driven to move the plunger upward. The second fitting body is released from the second stopper of the second valve structure. Then, the first fitting body 30 of the first valve component 26 is fitted to the first stopper 28. here,
Stop driving of solenoid.

Thus, when such a state is obtained,
The air entering through the first opening 24-1 is released from the opened second
Flows through the valve structure 32 to the second opening 24-2.
Conversely, air entering through the second opening 24-2 flows through the opened second valve component 32 to the first opening.

On the other hand, to interrupt the flow of the air, the operation of the solenoid may be reversed.
That is, as shown in FIG. 2, the plunger is moved downward, and the second fitting body 36 of the second valve structure 32 is moved to the second position.
To the stop body 34 of FIG. Then, the first valve component 2
The first fitting body 30 of No. 6 is released from the first stopper 28.

FIGS. 5 and 6 illustrate another embodiment of the solenoid solenoid valve. Here, FIG. 5 shows a case where air flow is caused (energization of the solenoid; OFF), and FIG.
When shutting off air flow (Electrification of solenoid; O
N).

In the figure, a solenoid type solenoid valve 60
Accommodates the following configuration in a plastic housing body 62. The housing body 62 has two openings 64-1 and 64-2 through which air enters and exits.
When the solenoid type solenoid valve has an exhaust function, three openings are provided. Openings 64-1, 64
-2 are respectively connected to conduits (not shown).

A plunger 66 which moves up and down by electromagnetic action is provided inside the housing. Plunger 6
One end of 6 has a contact body 68. The valve component 70 is provided with a stopper 72 attached to the housing and made of an elastic member having a hollow, and a contact member 68 contacting the stopper 72.
And is provided. The plunger moves up and down by electromagnetic action with the solenoid 74.

The stopper 72 is made of an elastic member such as rubber and has a thickness of 1.0 mm. Applicable connection 68
Abuts against the stopper 62. And when the plunger moves up or down, the stop has the ability to deform elastically up or down. Having this capability, it can have other elastic materials or thicknesses, not limited to rubber. Further, the diameter of the hollow formed in the stopper has a length that the contact body can contact.

Thus, when the plunger moves downward as shown in FIG. 5, the contact between the contact member 68 and the stopper 72 is released. Thus, air flows from one opening 64-1 to the other opening 64-2. On the other hand, when the plunger moves upward as shown in FIG. 6, the contact body 68 and the stopper 72 come into contact with each other. Thus, the flow of air from one opening to the other is blocked.

Hereinafter, the air supply / discharge state of the air bag in the massage mode, the beauty mode, and the vibration mode obtained by controlling the above-mentioned solenoid type solenoid valve will be described.

FIG. 7 is a schematic diagram showing the air supply / discharge state of the air bag in the massage mode. The massage mode controls the control device to supply / exhaust air to / from the first air bladder and then supply / exhaust air to / from the second air bladder,
Thereafter, similarly, supply and exhaust of air to the third to fifth air bags are sequentially performed.

The supply and exhaust of compressed air from the air pump 10 to each of the air bags 1 to 5 will be described. First, before turning on the power, all solenoid-operated solenoid valves (SVA, SVB, SV
C, SVD, SV1 to SV5). Turn on the power and drive the air pump to send out compressed air.

Next, SVA and SV1 are opened. Thus, the compressed air passes through the buffer chamber 12 through the air bladder 1;
B1. Here, the opening time of SVA and SV1 is 4.2 seconds to 4.4 seconds. After this time has elapsed, SVA and SV1 close. Thus, a predetermined amount of air exists in the air bag 1 (t1).

When 0.7 seconds elapse after the SVA and SV1 are closed, the SVC and SV1 are opened, and the air in the air bag 1 is exhausted to the atmosphere (t2).

After the elapse of 2.4 seconds to 2.6 seconds, the SVB and SV2 open. Thus, the compressed air
The air bag 2 is supplied to the air bag 2 via the buffer chamber 14. Here, the opening time of SVB and SV2 is 4.2 seconds or more.
4.4 seconds, after which time SVB and S
V2 closes. Thus, a predetermined amount of air exists in the air bag 2 (t2).

When 0.7 seconds elapse after the SVB and SV2 are closed, the SVD and SV2 are opened and the air in the air bag 2 is exhausted to the atmosphere (t3).

Thereafter, the above-described operation is repeated, and air is sequentially supplied to and discharged from the air bladder 3; AB3, the air bladder 4; AB4, the air bladder 5, and AB5 (t3 to te).

Thus, a massage action is provided to the affected part by repeatedly supplying and exhausting air from the air bags 1 to 5 described above.

FIG. 8 is a schematic diagram showing the air supply / discharge state of the air bag in the beauty mode. The esthetic mode is
By controlling the control device, after the supply of air to the first air bag, the supply of air to the second air bag, and thereafter, the supply of air from the third air bag to the fifth air bag in the same manner, afterwards,
The internal air in the first to fifth air bags is exhausted simultaneously or sequentially.

The supply and discharge of compressed air from the air pump 10 to each of the air bags 1 to 5 will be described. First, before turning on the power, all solenoid-operated solenoid valves (SVA, SVB, SVC,
SVD, SV1 to SV5). Turn on the power and drive the air pump to send out compressed air.

Next, SVA and SV1 are opened. Thus, the compressed air passes through the buffer chamber 12 through the air bladder 1;
B1. Here, the open time of SVA and SV1 is 2.5 seconds, and after this time elapses, SVA and SV1 close. Thus, a predetermined amount of air exists in the air bag 1 (t1).

When 0.5 second has elapsed after the air was supplied to the air bag 1, the SVB and SV2 open. Thus,
The compressed air is supplied to the air bag 2 via the buffer chamber 14;
Supplied to Here, the opening time of SVB and SV2 is 2.5 seconds, and when this time elapses, SVB and SV2 are opened.
V2 closes. Thus, a predetermined amount of air exists in the air bag 2 (t2).

Thereafter, the above-described operation is repeated, and air is supplied to the air bladder 3; AB3, air bladder 4; AB4, air bladder 5;
AB5. Thus, air bag 3, air bag 4,
A predetermined amount of air is present in the air bag 5 (t3 to t5).
The time during which air is held in the air bladders 1 to 5 is 3.0 seconds.

Thereafter, SV1 to SV5, and SVC and SVD are opened, and the air in the air bags 1 to 5 is simultaneously or sequentially discharged to the atmosphere (te).

Thus, the esthetic effect by the repetition of the supply and exhaust of the air in the air bladders 1 to 5 is provided to the affected part.

FIG. 9 is a schematic diagram showing the air supply / discharge state of the air bag in the vibration mode. In the vibration mode, the control device is controlled to supply the air to the first air bladder and hold it, and then supply the air to the second air bladder and hold it. The supply and holding of air are sequentially performed. Then, from the first air bag to the fifth
A small amount of the air inside the air bag is simultaneously or sequentially exhausted, and after a predetermined time, a small amount of air is simultaneously or sequentially supplied again from the first air bag into the n-th air bag. Then, the operations of the small amount exhaust and the small amount supply to the air bag are repeated. Thereafter, the inside air of the first air bag to the fifth air bag is exhausted simultaneously or sequentially.

The air supply / exhaust distribution of the air bag is set so that the pressure is not substantially reduced or increased by repeating the operation of the air bag, so that the pressure becomes substantially constant.

The supply and exhaust of compressed air from the air pump 10 to each of the air bags 1 to 5 will be described. First, before turning on the power, all solenoid-operated solenoid valves (SVA, SVB, SVC,
SVD, SV1 to SV5). Turn on the power and drive the air pump to send out compressed air.

Next, the valves SVA and SV1 are opened. Thus, the compressed air passes through the buffer chamber 12 through the air bladder 1;
B1. Here, the open time of SVA and SV1 is 2.5 seconds, and after this time, the electric VA and SV1 are closed. Thus, a predetermined amount of air exists in the air bag 1 (t1).

When 0.5 second has elapsed after the air was supplied to the air bag 1, the solenoid valves SVB and SV2 are opened. Thus, compressed air is passed through the buffer chamber to the bladder 2; AB
2 is supplied. Here, the opening time of the solenoid valves SVB and SV2 is 2.5 seconds, and after this time, the solenoid valves SVB and SV2 close. Thus, a predetermined amount of air exists in the air bag 2 (t2).

Thereafter, the above-described operation is repeated, and air is supplied to the air bladder 3; AB3, air bladder 4; AB4, air bladder 5;
AB5. Thus, air bag 3, air bag 4,
A predetermined amount of air is present in the air bag 5 (t3 to t5).
The time during which air is held in the air bladders 1 to 5 is 3.0 seconds.

Next, SVA, SVB, SVC and SVD
Are opened, SV1, SV2, SV3, SV4, S
Open V5 simultaneously or sequentially. Where S
The time to open V1, SV2, SV3, SV4, SV5 is
0.1 second. Thus, in the air bladders 1 to 5, a state in which air is slightly released is obtained (t6, t6).
8, t10).

Thereafter, SVC and SVD are closed, and SVA
And SVB, and SV1, SV2, SV3, SV
4. Open SV5 simultaneously or sequentially. Here, the time for opening SV1, SV2, SV3, SV4, and SV5 is 0.3 seconds. Thus, air bag 1 to air bag 5
, Air is supplied again (t7, t9, t11)
~).

Thus, the air is discharged from the air bladders 1 to 5 at short time intervals (t6, t8, t8).
10) and air supply (t7, t9, t11-) are provided to the affected area with a vibration action.

After use, the valves SV1 to SV5 and SVC
Then, the SVD is opened and the air in the air bladders 1 to 5 is simultaneously or sequentially discharged to the atmosphere (te).

[0064]

According to the beauty and health equipment of the present invention, the mode such as the massage mode, the esthetic mode or the vibration mode can be changed with high reliability and relatively low price.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a beauty and health device according to the present invention.

FIG. 2 is a schematic view showing a solenoid type electromagnetic valve device.

FIG. 3 is a schematic view showing a solenoid type electromagnetic valve device.

FIG. 4 is a partially exploded view showing a solenoid type solenoid valve device.

FIG. 5 is an OFF diagram of another solenoid type solenoid valve device.
It is a schematic diagram showing a state.

FIG. 6 shows ON of the solenoid type solenoid valve device of FIG. 5;
It is a schematic diagram showing a state.

FIG. 7 is a schematic diagram showing an air supply / discharge state of an air bag in a massage mode.

FIG. 8 is a schematic diagram showing an air supply / discharge state of the air bag in the beauty treatment mode.

FIG. 9 is a schematic diagram showing an air supply / discharge state of an air bag in a vibration mode.

[Explanation of symbols]

10; air pumps 12, 14; buffer chambers SVA, SVB, SVC, SVD, SV1 to SV5; solenoid type solenoid valve devices CA, CB, CC, CD, C1 to C5; conduits AB1, AB2, AB3, AB4, AB5; Air bags 22, 62; Housing bodies 24-1, 24-2, 64-1, 64-2; Openings 26, 32, 70; Valve components 28, 34, 72; Stoppers 30, 36; , 66; plunger 68; contact body 52, 74; solenoid

Claims (10)

[Claims] An air compressor, a buffer chamber for storing air from the air compressor, a plurality of air bladders into which air from the buffer chamber enters, and a flow of air into and out of each air bladder from the buffer chamber. And a control device for controlling the opening and closing of the solenoid type solenoid valve device provided for each air bag to perform the control of the air bag, thus driving the control device A beauty and health device that controls the supply and exhaust of air to each of the air bags to obtain a massage mode, an esthetic mode, and a vibration mode. 2. The massage mode controls the control device to supply / exhaust air to / from the first air bladder, and then supply / exhaust air to / from the second air bladder. 2. The air supply / exhaust to the bag is performed sequentially.
The described beauty and health equipment. 3. The esthetic mode controls the control device to supply air to the first air bag, supply air to the second air bag, and thereafter similarly supply air to the n-th air bag. 2. The beauty and health equipment according to claim 1, wherein the supply is performed sequentially, and thereafter, the internal air in the first air bag to the n-th air bag is exhausted simultaneously or sequentially. 4. The vibration mode controls the control device to supply air to the first air bladder, supply air to the second air bladder, and thereafter similarly supply air to the n-th air bladder. Supply is performed sequentially, and then a small amount of air inside the n-th air bag is simultaneously or sequentially exhausted from the first air bag, and after a predetermined time, a small amount of air is simultaneously or sequentially supplied again from the first air bag into the n-th air bag. The beauty and health equipment according to claim 1, wherein the air inside the n-th air bag is exhausted from the first air bag after that. 5. The air supply / exhaust distribution of the air bag is set so as to be a substantially constant tightening pressure so that the pressure does not sequentially decrease or increase by repeating the operation of the air bag. The beauty and health equipment according to claim 4, wherein 6. An air compression device, a buffer chamber for storing air from the air compression device, a plurality of air bladders into which air from the buffer chamber enters, and a flow of air into and out of each air bladder from the buffer chamber. The solenoid-operated solenoid valve device provided for each air bag for controlling the air bag, the solenoid-operated solenoid valve device has the following configuration, an opening through which air flows in and out, and a A plunger that moves up and down by electromagnetic action, a first stopper made of a hollow elastic member that fits into the first fitting, and a second stopper that has a first fitting and a second fitting. A second stopper made of an elastic member having a hollow to be fitted therein, and the first stopper and the second stopper being disposed at a predetermined interval;
A control device for controlling the opening and closing of the solenoid solenoid valve device.Thus, by controlling the supply and exhaust of air to each of the air bags by driving the control device, a massage mode, an esthetic mode Beauty and health equipment that can obtain a vibration mode. 7. An air compressor, a buffer chamber for storing air from the air compressor, a plurality of air bladders into which air from the buffer chamber enters, and the ingress and egress of air from the buffer chamber to each air bladder. Solenoid valve device arranged for each air bag for controlling the air bag, the solenoid valve device has the following configuration, an opening through which air enters and exits, and a fitting body at one end. A plunger that moves up and down by electromagnetic action, a stopper made of an elastic member having a hollow for fitting into the fitting body, and a control device for controlling opening and closing of the solenoid solenoid valve device When,
And a beauty and health appliance that controls the supply and exhaust of air to each of the air bags by driving the control device to obtain a massage mode, an esthetic mode, and a vibration mode. 8. The beauty and health equipment according to claim 1, wherein the buffer chamber is divided into a plurality of parts. 9. The air conditioner according to claim 1, wherein said buffer chamber has an exhaust hole for discharging air from said air bag.
The beauty and health equipment according to 6 or 7. 10. The beauty and health equipment according to claim 1, wherein said solenoid solenoid valve device further comprises an exhaust hole for discharging air from said air bag.