JPH09169253A - Air bag device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To positively hold airtightness in an air bag with simple constitution and positively operate the air bag. SOLUTION: A gas generator equipped in an air bag 10 is equipped with a sleeve 30 having a nearly cylindrical cut-off wall 31 surrounding gas blowoff ports 22 of the gas generator 20 so as to change the direction of gas jetted from the gas blowoff ports 22. An outer housing 40 longitudinally attached to the gas generator 20 from the outside of the air bag 10, and an inner housing 60 longitudinally attached to the gas generator 20 mounted in the air bag 10 are fastened by screw members 51 so as to fix the gas generator 20 airtightly into the specified position of the air bag 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air bag device for protecting an occupant by an air bag that is inflated by gas generated from a gas generator when, for example, a vehicle crashes. The present invention relates to a structure for reliably maintaining airtightness inside a bag.

[0002]

2. Description of the Related Art Conventionally, as a side collision airbag device, at the time of a side collision of a vehicle, an airbag accommodated in a seat back of the vehicle is inflated by gas filled from a gas generator, There is one that protects the occupant by deploying it between the occupant and the vehicle door.

This type of air bag device is formed into a bag shape as a whole by sewing a base cloth (bag cloth) cut into three pieces in a desired shape at desired locations. The gas generator is formed in a substantially cylindrical shape and is mounted inside the airbag. A plurality of gas outlets are provided along the circumferential direction on the outer circumference of the gas generator.

In such a side-collision airbag apparatus, a gas generator generates gas based on a signal from a sensor or the like associated with deformation of a door or the like when a vehicle collides, and the gas is generated in the airbag. Fill. As a result, the airbag is instantly deployed between the occupant and the vehicle door, receives the occupant's body, and reduces the impact on the occupant's body.

[0005]

However, in the above-described conventional side-impact airbag apparatus, the structure of the gas generator mounting end (the portion into which the connector for connecting the sensor or the like is inserted) is complicated, and the entire apparatus is used. Has become larger,
There is a problem that it is difficult to store the vehicle in a seat back or the like.

Further, the gas generator is mounted in the air bag, and the outer surface is covered with the air bag. Therefore, when the generated gas is at a high temperature, the gas blowout port provided on the outer surface of the gas generator may damage or block the airbag. There was a problem that the bag could not be deployed reliably.

Therefore, an object of the present invention is to solve the above-mentioned problems, and in spite of its relatively simple construction, the gas blowout port provided on the outer surface of the gas generator prevents the airbag from being damaged. It is an object of the present invention to provide an airbag device capable of reliably operating an airbag without the risk of being tightly closed. Further, another object of the present invention is to solve the above-mentioned problems, which has a relatively simple structure and can achieve cost reduction,
(EN) An airbag device capable of reliably maintaining airtightness in an airbag and reliably operating the airbag.

[0008]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an airbag device mounted on a vehicle for protecting an occupant in an emergency, in which the occupant's body is inflated by being inflated due to gas filling and the occupant is in contact with the body. Generates a substantially cylindrical gas that fills the airbag with the airbag that reduces the impact received and the gas that is installed in the airbag and blows out from the gas outlet provided on the outer surface in the event of an emergency of the vehicle And a blocking wall that is attached to the gas generator and surrounds at least a part of the periphery of the gas outlet of the gas generator so that the gas injected from the gas outlet does not directly hit the bag cloth. It is achieved by an air bag device having a sleeve that changes the direction of the gas injected from the gas outlet through the blocking wall.

Another object of the present invention is to provide an airbag device mounted on a vehicle for protecting an occupant in an emergency, in which the occupant's body is inflated and inflated by gas filling, and the occupant's body impact is reduced. An air bag that is installed in the air bag, and a substantially cylindrical gas generator that is installed in the air bag to blow the gas from the gas outlet provided on the outer surface into the air bag, An outer housing vertically attached to the gas generator from the outside of the bag, an inner housing vertically attached to the gas generator in the airbag, and an air bag cloth provided on each of the outer housing and the inner housing. Between the outer housing and the inner housing, and the flange portion that makes surface contact with the back cloth at the position facing each other. Clamping, in which can also be achieved by an airbag apparatus characterized by comprising a fastening member for airtightly fixed to the gas generator to a predetermined position of the air bag.

[0010]

According to the above configuration of the present invention, between the bag cloth of the airbag to which the gas generator is fixed and the gas outlet of the gas generator, the sleeve surrounding the gas outlet is provided. Since the blocking wall is interposed, the blocking wall can prevent the gas blowing port from being blocked by the bag cloth, and at the same time, the gas injected from the gas blowing port can be prevented from directly hitting the bag cloth.

Further, according to the above-mentioned other constitution of the present invention, not only the assembling work of the airbag apparatus is simplified, but also the gas leakage from the mounting portion of the gas generator is prevented during the operation of the gas generator. At the same time, the tension that acts on the bag cloth when the airbag is deployed is widely dispersed in the flange,
It is possible to prevent the fastening member from being concentrated on the insertion portion.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. 1 to 7 show a side collision airbag apparatus according to a first embodiment of the present invention. FIG. 1 is an exploded perspective view of the side collision airbag apparatus 1 of the first embodiment, and FIG. FIG. 3 is a perspective view of a part of the airbag device 1 assembled, FIG. 3 is a sectional view of an essential part of the airbag device 1 in an assembled state (a sectional view taken along the line AA of FIG. 2), and FIG. -B is a cross-sectional view taken along the line B, FIG. 5 is a development view of a bag cloth for forming the airbag 10 used in the airbag device 1, and FIG. 6 is an enlarged perspective view of a sleeve used in the airbag device 1.
FIG. 7 is an enlarged perspective view of the inner housing used in the airbag device 1.

The airbag device 1 is an airbag (side impact airbag) 10 that expands due to gas filling to receive the body of an occupant and reduces the impact on the body of the occupant, and the inside of the airbag 10. Gas outlet 2 mounted on the vehicle and provided on the outer surface in the event of an emergency of the vehicle
By blowing the gas from 2, the gas is blown into the airbag 1
0 has a substantially cylindrical gas generator 20 and a substantially cylindrical blocking wall 31 that is attached to the gas generator 20 and surrounds the gas outlet 22 of the gas generator 20. The gas injected from the outlet 22 is directly in the bag cloth 1
1. A sleeve 30 that changes the direction of the gas injected from the gas outlet 22 so as not to hit 1 by the blocking wall 31, and an upper surface of the gas generator 20 to which the sleeve 30 is attached from the outer surface side of the airbag 10. And an outer housing 40 that holds the gas generator 20 in an airtight manner at a predetermined position of the airbag 10.

As shown in FIG. 3, the gas generator 20 is positioned with respect to the outer housing 40 by connecting the outer housing 40 and the inner housing 60 via a screw member (male screw) 51 described later. It is fixed. Here, the airbag 10 is inflated by being filled with gas from a gas generator 20 that operates in response to an impact from the side of the vehicle, and is inflated between a vehicle door or pillar or the like and an occupant in the vehicle interior. Deployed instantly. The deployed airbag 10 prevents the door or pillar of the vehicle from directly hitting the upper body of the occupant, and discharges the filled gas from the exhaust port (not shown) into the vehicle interior to contract, resulting in a secondary collision, That is, the occupant is prevented from colliding with various parts inside the vehicle.

As shown in FIG. 5, the airbag 10 is formed by folding a single piece of bag cloth 11 cut into a predetermined shape symmetrical with respect to the folding line 2 at the folding line 2 and overlapping each other. By sewing the peripheral portion, a predetermined bag shape is formed. Then, a gas generator insertion slit 13 for inserting the gas generator 20 and the like into the airbag 10 is formed at approximately the center of the bending position of the airbag 10 thus formed, and A screw insertion hole 14 used to fix the gas generator 20 to the airbag 10 is formed at a position separated from the gas generator insertion slit 13 by an appropriate distance. The gas generator insertion slit 13 has a linear shape, and the opening length thereof is such that the gas generator 20 having the sleeve 30 and an inner housing 60 described later can be inserted into the airbag 10. It is set to be appropriately larger than the outer diameter of the container 20.

Further, in the airbag 10, a harness insertion passage 15 used as an insertion portion for the electric wire 21 connected to the gas generator 20 in the airbag 10 is provided at one end of the bag. As is apparent from FIG. 1, the sewing allowance (the distance from the sewn portion 12 in the peripheral portions of the bag cloth 11 to the peripheral edge of the bag cloth 11) S in the airbag 10 of the first embodiment is the sewn portion 12 Is almost constant over the entire length of. However, in the portion of the harness insertion passage 15, the harness insertion passage 15 has a tunnel shape, and the length dimension L of the passage is larger than the sewing margin S of the other peripheral edge.
The required length of sewing is performed along the insertion direction of the electric wire 21 (that is, along the folding line of the bag cloth 11).

The gas outlet 22 of the gas generator 20
Are provided along the circumferential direction on the outer peripheral surface near the end (the left end in FIG. 1) to which the electric wire 21 is connected. The gas generator 20 is operated by receiving an operation signal from a sensor or the like for detecting an impact from the side of the vehicle via the electric wire 21. The sleeve 30 is shown in FIG.
As also shown, the inner diameter is set to be substantially equal to the outer diameter of the gas generator 20, and the thick cylindrical portion 32 is fitted to the outer periphery of the gas generator 20, and the thick cylindrical portion 32 extends from one end. It is composed of a blocking wall 31 which is a protruding cylindrical portion. As shown in FIG. 4, the blocking wall 31 has an inner diameter larger than that of the thick-walled cylindrical portion 32 so that a gap F through which the gas flows is formed around the gas outlet 22.

The thick cylindrical portion 32 and the blocking wall 31
Each has a C-shaped cross section obtained by cutting a part of the peripheral wall along the axial direction of the cylinder. In addition, in the case of the first embodiment, in addition to the outer housing 40, the airbag 10 is used as gas generator fixing means for airtightly fixing the gas generator 20 at a predetermined position of the airbag 10.
An inner housing 60 vertically provided inside the gas generator 20 is provided therein.

The curvature of the arcuate surface on the inner diameter side of the housing body 41 of the outer housing 40 is set to be substantially equal to the curvature of the outer peripheral surface of the sleeve 30. The curvature of the arcuate surface on the inner diameter side of the housing body 61 of the inner housing 60 is set to be substantially equal to the curvature of the outer peripheral surface of the gas generator 20. Further, the housing main body portions 41, 61 are provided with flange portions 42, 62 which extend from both sides and are in surface contact with the bag cloth 11 at positions facing each other with the bag cloth 11 sandwiched therebetween.

Then, the respective flange portions 42, 62
Is formed with screw insertion holes 43 and 63 through which the screw portion of the screw member 51 is inserted. Further, as shown in FIG. 7, the screw member 51 is provided on the back surface of the flange portion 62 of the inner housing 60. A nut 64 to be screwed is fixedly installed. Therefore, as shown in FIG. 3, the flange portions 42 and 62 of the outer housing 40 and the inner housing 60 are fastened by the screw member 51 while sandwiching the bag cloth 11 of the airbag 10, thereby the gas generator 20. Is airtightly fixed to a predetermined position of the airbag 10. Further, when the gas generator 20 is ignited and the air bag internal pressure rises, the gas generator insertion slit 13 comes into close contact with the inner wall of the outer housing, so that gas does not leak from this slit 13.

In the airbag 10, the gas generator 20 is provided.
The housing body 61 of the inner housing 60 vertically attached to the gas generator 20 has a gas outlet 22 on the gas generator 20.
An opening 66 for exposing the inside of the airbag 10 is provided.

Next, the operation of the airbag device 1 of the first embodiment will be described. In the above airbag device 1,
Between the bag cloth 11 and the gas outlet 22 of the gas generator 20, a blocking wall 31 of a sleeve 30 surrounding the gas outlet 22 is interposed, and the blocking wall 3
1 prevents the gas blow-out port 22 from being blocked by the bag cloth 11, and at the same time, the gas jetted from the gas blow-out opening 22 is turned and jetted as shown by an arrow (a) in FIG. To prevent direct hits.

Therefore, when the gas generator 20 is operated, the gas injection is not obstructed by the bag cloth 11 around the gas generator 20, and the gas generator 20 is affected by the heat of the injected gas. The bag cloth 11 that is in close proximity to is not damaged. Moreover, the gas generator 20 installed in the airbag 10 includes an outer housing 40 vertically attached to the gas generator 20 from the outside of the airbag 10 and an inner housing 60 vertically attached to the gas generator 20 inside the airbag 10. Since it is airtightly fixed at a predetermined position of the airbag 10 with a simple structure in which the and are screwed together, not only the assembly work of the airbag 10 device is simplified, but also the gas generator 20 when the gas generator 20 is activated. It is possible to prevent the gas from leaking from the mounting portion of 20 and the slit 13 for inserting the gas generator, and to deploy the airbag 10 quickly and reliably. Therefore, although the structure is relatively simple and the cost can be reduced, the airtightness in the airbag 10 can be reliably maintained and the airbag 10 can be reliably operated. .

Further, the outer housing 40 and the inner housing 6 as gas generator fixing means for airtightly fixing the gas generator 20 at a predetermined position of the airbag 10.
0 is a bag cloth 1 at a position facing each other with the bag cloth 11 in between.
1 has surface-contacting flange portions 42 and 62, and by tightening these flange portions 42 and 62 with a screw member 51, the gas generator 20 is fixed at a predetermined position of the airbag 10, It is possible to prevent the tension acting on the bag cloth 11 when the airbag 10 is deployed from being widely dispersed in the flange portions 42 and 62 and being concentrated on the insertion position of the screw member 51 of the bag cloth 11.

Therefore, it is possible to prevent the strength of the airbag 10 at the fixed portion of the gas generator 20 from decreasing. Further, since the airbag 10 is formed into a predetermined bag shape by folding one piece of bag cloth 11 cut into a predetermined shape in two and sewing the peripheral portions overlapping each other,
Compared with a conventional airbag in which three pieces of bag cloth are sewn, the configuration of the airbag 10 is extremely simple, and cost reduction due to the simplified configuration can be promoted.

Further, the airbag 10 has a length L along the insertion direction as an insertion portion for an electric wire or the like connected to the gas generator 20 in the airbag 10.
Equipped with a tunnel-shaped harness insertion passage 15 that is set to be larger than the sewing margin S at the periphery of the airbag 10, the gas leakage from the harness insertion passage 15 when the airbag 10 is deployed is suppressed, and the deployment performance of the airbag 10 ( The deployment speed) can be improved.

8 to 15 show a side collision airbag apparatus according to a second embodiment of the present invention. FIG. 8 is an exploded perspective view of a side collision airbag apparatus 4 according to the second embodiment. 9 is a perspective view showing a state where a part of the airbag device 4 is assembled, FIG. 10 is a sectional view of a main part of the airbag device 4 in an assembled state (a sectional view taken along the line CC of FIG. 9), and FIG. 10 D-
12 is a sectional view taken along line D, FIG. 12 is a development view of a bag cloth for forming an airbag 17 used in the airbag device 4, and FIG. 13 is a sleeve 3 used in the airbag device 4.
5 is an enlarged perspective view of FIG. 5, FIG. 14 is an enlarged perspective view of an inner housing and an outer housing used in the airbag device 4, and FIG. 15 is a sectional view taken along line EE of FIG.

The airbag device 4 of the second embodiment is
Briefly, as compared with the first embodiment described above, the outer housing as the structure of the sleeve 30 and the gas generator fixing means for airtightly fixing the gas generator 20 at a predetermined position in the airbag 17. The structure of 40 and the inner housing 60 is changed.

The sleeve 30, as shown in FIG.
The thick walled cylindrical portion 32 and the blocking wall 31 are provided, and the blocking wall 31 forms a gap F through which the gas flows out around the gas outlet 22 as shown in FIG.
This is similar to the first embodiment described above.

However, in the case of the second embodiment, support walls 34 extending along the axial direction of the cylinder are formed on the blocking wall 31 at regular intervals in the circumferential direction. As shown in FIG. 11, these support walls 34 abut on the outer surface of the gas generator 20 to change the direction of the gas injected from the gas outlet 22 of the gas generator 20.
Ensures that.

The second embodiment is similar to the first embodiment in that the inner housing 60 is provided in addition to the outer housing 40. However, in addition to the configuration of the first embodiment, as shown in FIGS. 11 and 14, further, at one end of each of the outer housing 40 and the inner housing 60 located on the wire connection side of the gas generator 20. Has flange surfaces 47 and 67 whose surfaces are oriented in a direction orthogonal to the axial direction of the gas generator 20, and the flange surfaces 47 and 67 are abutted against each other with the bag cloth 11 sandwiched between the cloth fixing flanges 48 and 68.
The cloth fixing flanges 48 and 68 are fastened together with a screw member 52, and the end surface of the gas generator 20 is pressed against the cloth fixing flange 48. By fixing the gas generator 20 by sandwiching it with the housing 40, one end of the airbag 17 is fixed to the gas generator 2.
0 and is fixed to the outer housing 40. Further, in the case of the second embodiment, as shown in FIGS. 8, 9, and 11, the gas generator 20 and the electric wire 21 are electrically connected via the connector 211.

Furthermore, as shown in FIGS. 14 and 15, the airbag 17 is provided on the inner peripheral surface of the outer housing 40 near the rear end of the housing body 41.
Ribs 49 that come into contact with the outer peripheral surface of the gas generator 20 from the outside of the
11, the rear end of the gas generator 20 is supported at the same height as the thick cylindrical portion 32 of the sleeve 30 to prevent the rear end side of the gas generator 20 from rattling.

The cloth fixing flange 48 of the outer housing 40 is provided with a connector insertion opening 54 for inserting a connector of the gas generator 20 and a screw insertion hole 55 for inserting the screw member 52. Has been done. The cloth fixing flange 68 of the inner housing 60 is provided with a screw insertion hole 6 through which the screw member 52 is inserted.
9, and a nut 70 with which the screw member 52 is screwed is fixedly provided on the back surface side of the fabric fixing flange 68.

As shown in FIG. 12, the airbag 17 is made by folding a piece of bag cloth 11 cut into a predetermined shape symmetrical with respect to the folding line 2 into two at the folding line 2 to form one another. A generator insertion opening for inserting the gas generator 20 and the like into the airbag 17 is formed at a point formed into a predetermined bag shape by sewing the overlapping peripheral edge portions and substantially at the center of the bending position. 131 is formed, and the screw insertion hole 14 used for fixing the gas generator 20 to the airbag 17 is formed at a position separated by a proper distance from the generator insertion opening 131. The same as in the first embodiment. In the second embodiment, the gas generator insertion opening 131 is not a slit but a round hole. However, in the airbag 17 of the second embodiment, the connector insertion opening 18 corresponding to the connector insertion opening 54 of the cloth fixing flange 48 and the screw insertion hole 55 are changed due to the change of the outer housing 40 and the inner housing 60 described above. And a screw insertion hole 19 corresponding to 1 are provided on one end side of the bag.

The airbag device 4 of the second embodiment described above can obtain the following actions and effects in addition to the actions and effects of the first embodiment described above. That is, in the case of the airbag device of the first embodiment, when the gas generator 20 is inserted into the airbag 10, the connector 2
11 had to be connected to the gas generator 20, or it was necessary to use a gas generator having a harness directly connected to the gas generator, but in the case of the airbag device 4, the airbag device 4 is assembled. After that, it is only necessary to insert the connector, so that it becomes possible to connect the connector 211 after attaching the airbag device 4 to, for example, a seat or the like, and to carry,
In terms of handling, workability is improved because there is no harness. Moreover, by sandwiching the airbag between the outer housing and the end surface of the gas generator, gas leakage from this portion can be prevented.

[0036]

According to the airbag device of the present invention, the gas blowout port is surrounded by a bag cloth of the airbag to which the gas generator is fixed and the gas blowout port of the gas generator. The blocking wall of the sleeve is interposed to prevent the gas blowing port from being blocked by the bag cloth, and at the same time prevent the gas injected from the gas blowing port from directly hitting the bag cloth. Therefore, the gas injection is not obstructed by the bag cloth around the gas generator while the gas generator is operating, and the gas is not affected by the heat of the injected gas even though the gas generator has a relatively simple structure. The bag cloth that is close to the generator is not damaged, and the airbag can be operated reliably.

In the airbag device of the present invention,
As a gas generator fixing means for airtightly fixing the gas generator at a predetermined position of the airbag, an inner housing vertically provided in the airbag in addition to the outer housing is provided, and these Each of the outer housing and the inner housing of is equipped with a flange portion which is in face-to-face contact with the bag cloth at opposite positions with the bag cloth sandwiched therebetween, and the flange portions of the outer housing and the inner housing can be tightened with a screw member. If the gas generator is configured to be airtightly fixed at a predetermined position of the airbag, not only the assembly work of the airbag device will be simplified, but also the mounting portion of the gas generator and the gas generation when the gas generator is activated. Gas leakage from the gas generator insertion part can be prevented and the strength of the airbag at the fixed part of the gas generator is reduced. Can be prevented, it is possible to deploy the airbag quickly. further,
The tension acting on the bag cloth when the airbag is deployed is widely dispersed in the flange portion, so that the housing is prevented from being deformed, and the tension is prevented from concentrating on the insertion portion of the screw member. Therefore, although the structure is relatively simple and the cost can be reduced, the airtightness in the airbag can be reliably maintained and the airbag can be reliably operated.

In the air bag device, one end of each of the outer housing and the inner housing located on the electric wire connection side of the gas generator is
A cloth fixing flange is provided which has a flange surface whose surface is oriented in a direction orthogonal to the axial direction of the gas generator, and the flange surfaces are butted against each other with the bag cloth sandwiched therebetween, and these cloth fixing flanges are screwed together. With the end face of the gas generator pressed against the fabric fixing flange of the outer housing with the inner housing and the outer housing sandwiched with the gas generator, the end of the airbag is fixed When the structure is fixed to the gas generator, it is sufficient to insert the connector after assembling the airbag device, so, for example, after attaching the airbag device to a seat or the like,
Since it is possible to connect a connector, there is no harness in terms of transportation and handling, and workability is improved. Moreover, by sandwiching the airbag between the outer housing and the end surface of the gas generator, gas leakage from this portion can be prevented. Further, the airbag has a tunnel-shaped harness in which a length dimension along the insertion direction is set to be larger than a sewing margin of the peripheral edge of the airbag as an insertion portion for an electric wire or the like connected to a gas generator in the airbag. In the case where the configuration is provided with the insertion passage, the viscous resistance in the tunnel portion increases, so gas leakage from the harness insertion passage at the time of airbag deployment can be suppressed, and the airbag deployment performance can be improved. .

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a side collision airbag device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a part of the airbag device according to the first embodiment of the present invention is assembled.

FIG. 3 is a cross-sectional view of a main part (cross-sectional view taken along the line AA of FIG. 2) of the airbag device according to the first embodiment of the present invention in an assembled state.

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is a development view of a bag cloth for forming an airbag used in the airbag device according to the first embodiment of the present invention.

FIG. 6 is an enlarged perspective view of a sleeve used in the airbag device according to the first embodiment of the present invention.

FIG. 7 is an enlarged perspective view of an inner housing used in the airbag device according to the first embodiment of the present invention.

FIG. 8 is an exploded perspective view of a side collision airbag device according to a second embodiment of the present invention.

FIG. 9 is a perspective view showing a state in which a part of the airbag device according to the second embodiment of the present invention is assembled.

FIG. 10 is a cross-sectional view of a main part (cross-sectional view taken along the line CC of FIG. 9) of the airbag device according to the second embodiment of the present invention in an assembled state.

FIG. 11 is a sectional view taken along the line DD in FIG. 10;

FIG. 12 is a development view of a bag cloth for forming an airbag used in the airbag device according to the second embodiment of the present invention.

FIG. 13 is an enlarged perspective view of a sleeve used in the airbag device according to the second embodiment of the present invention.

FIG. 14 is an enlarged perspective view of an inner housing and an outer housing used in the airbag device according to the second embodiment of the present invention.

15 is a cross-sectional view taken along the line EE of FIG.

[Explanation of symbols]

 1,4 Airbag device 10,17 Airbag 13 Gas generator insertion slit 15 Harness insertion passage 20 Gas generator 21 Electric wire 22 Gas outlet 30 Sleeve 31 Blocking wall 32 Thick cylindrical portion 34 Support wall 40 Outer housing 41 Housing Main body 42 Flange portion 43 Screw insertion hole 48 Cloth fixing flange 49 Rib 51 Screw member 52 Screw member 54 Connector insertion opening 60 Inner housing 61 Housing body portion 62 Flange portion 63 Screw insertion hole 64 Nut 68 Cloth fixing flange 69 Screw insertion hole 70 nuts

Claims (2)

[Claims] 1. An airbag device mounted on a vehicle for protecting an occupant in an emergency, the airbag being inflated by gas filling to receive the occupant's body and reduce the impact on the occupant's body. When the vehicle is in an emergency, the gas is blown from a gas blowout port provided on the outer surface to fill the air bag with a substantially cylindrical gas generator, and the gas generator is attached to the gas generator. The gas generator has a blocking wall that surrounds at least part of the periphery of the gas outlet, and directs the direction of the gas ejected from the gas outlet so that the gas ejected from the gas outlet does not directly hit the bag cloth. An air bag device comprising: a sleeve that is converted by the blocking wall. 2. An airbag device mounted on a vehicle for protecting an occupant in an emergency, wherein the airbag is inflated by gas filling to receive the occupant's body, and reduces the impact on the occupant's body. In the case of an emergency of the vehicle, the gas is blown out from the gas outlet provided on the outer surface of the vehicle to fill the inside of the airbag with a substantially cylindrical gas generator. The outer housing vertically attached to the upper part, the inner housing vertically attached to the gas generator in the airbag, and the back cloths provided on the outer housing and the inner housing at opposite positions with the air bag cloth interposed therebetween. Gas is generated by tightening the flange part that makes surface contact with the flange part of the outer housing and inner housing. An air bag device, comprising: a fastening member for hermetically fixing the container at a predetermined position of the air bag.