JPH0826063A - Air bag device - Google Patents

Abstract

PURPOSE:To provide a small-sized air bag device free from the bulging out to the car room inside from the car body side part. CONSTITUTION:As for an air bag device 27 having an air bag 31 which is installed on a car body side part and expands and is developed inside the window part 17 of a car body side part by detecting the impact force in the car width direction, a supporting member 35 which is accommodated along the roof side rail 11 on the car body side part and laid between a center pollar 33 and the roof side rail 11 at the car body side part between the developed air bag 31 and a window part 17 and can be shifted to the crossing state with the window part, and a shifting means 37 for shifting the supporting member 35 by detecting the impact force are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has an airbag provided on a side portion of a vehicle body for inflating and expanding inside a window portion on the vehicle body side portion by detecting an impact force in a vehicle width direction to support an occupant. The present invention relates to an airbag device.

[0002]

2. Description of the Related Art FIGS.
The side part of the vehicle in which the airbag apparatus 1 described in Japanese Patent No. 232 is mounted is shown. The airbag device 1 includes an upper airbag device 5 provided on the roof side 3 and a lower airbag device 9 provided on a door 7.

The upper airbag device 5 includes a roof side 3
The inflator 13 provided in the roof side rail 11 of the vehicle is ignited by the detection of the impact force applied to the vehicle body in the vehicle width direction, and gas is flowed into the airbag 15, so that the airbag 15 is provided on the side of the vehicle body. It expands and deploys inside the window 17. In addition, the lower airbag device 9 includes the door 7
The inflator 19 provided inside ignites upon detection of an impact force in the vehicle width direction and causes gas to flow into the airbag 21, whereby the airbag 21 inflates inside the door 7,
expand. As a result, the occupant 23 is configured such that the head portion 23a is supported by the airbag 15 and the chest portion 23b is supported by the airbag 21 so as to be protected.

In the upper airbag device 5, when the airbag 15 supported on the roof side rail 11 side supports the head 23a of the occupant, the head 23a of the occupant 23 moves toward the window. The airbag 21 has the window 1
In order to prevent the airbag 15 from rotating toward the 7 side, the thickness of the airbag 15 may be increased to increase the rigidity, or the airbag 7 may be expanded to the lower portion of the window portion 17 so that the lower end portion of the airbag 15 is supported by the door 7. It was necessary to make the airbag 15 large.

[0005]

However, when the thickness of the airbag 15 is increased or the size of the airbag 15 is increased, a large driving force is required to inflate and deploy the airbag 15, so that the inflator is inflated. 13 becomes large. Therefore, there is a problem that the upper airbag device 5 becomes large as a whole and projects from the roof side 3 to the inside of the passenger compartment, and the overhead space of the occupant 23 is narrowed, and the occupant 23 feels a feeling of pressure. Therefore, an object of the present invention is to provide a small-sized airbag device which does not extend from the vehicle body side portion to the vehicle interior side in the airbag device provided on the vehicle body side portion.

[0006]

In order to achieve the above object, the invention according to claim 1 is provided in a vehicle body side portion, and is expanded and deployed inside a window portion of the vehicle body side portion by detecting an impact force in the vehicle width direction. In an airbag device having an airbag, which is disposed on a skeleton member on the side of a vehicle body, and bridges between the skeleton members on the side of the vehicle body between the deploying airbag and the window portion to cross the window portion. It is characterized in that it has a supporting member movable to a state in which the supporting member moves and a moving means for moving the supporting member by detecting the impact force.

The invention according to claim 2 is the invention according to claim 1, characterized in that the support member is a strip-shaped cloth.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the moving means guides one end of the supporting member along the center pillar and one end of the supporting member. And a drive unit for driving the drive unit,
It is characterized by a piston structure that uses energy from the explosion of explosives.

The invention according to claim 4 is the invention according to claim 1 or 2, wherein the moving means guides one end of the support member along the center pillar and one end of the support member. And a drive unit for driving the drive unit,
It is characterized by a piston structure that uses energy stored in a spring.

The invention according to claim 5 is the invention according to claim 1, characterized in that the supporting member is a flat plate or a rod made of metal or plastic.

A sixth aspect of the invention is the invention according to the first aspect, characterized in that the support member is formed integrally with a vehicle body outer side portion of the airbag.

The invention according to claim 7 is the invention according to claim 1, wherein the moving means is an inflator for inflating and deploying an airbag.

[0013]

According to the invention of claim 1, when an impact force in the vehicle width direction is applied to the vehicle body, the moving means detects the impact force,
The support member is bridged between the skeleton members on the side of the vehicle body between the deploying airbag and the window portion, and the window member is moved to intersect. At the same time, the airbag inflates and deploys inside the window on the side of the vehicle body to support the occupant's head. At this time, the outside of the airbag in the vehicle width direction is supported by the support member.

According to the second aspect of the invention, the outside of the airbag expanded by the belt-like cloth in the vehicle width direction is supported.

According to the third aspect of the present invention, the support member is bridged between the skeleton members on the side of the vehicle body by the driving unit of the piston structure using the energy generated by the explosion of the explosive, and the window is crossed. . Therefore, when the airbag is inflated and deployed, the support member supports the outside in the vehicle width direction.

According to the fourth aspect of the present invention, the support member is bridged between the frame members on the side of the vehicle body by the driving unit of the piston structure using the energy stored in the spring, and is moved so as to cross the window. It Therefore, when the airbag is inflated and deployed, the support member supports the outside in the vehicle width direction.

According to the fifth aspect of the invention, the outer side in the vehicle width direction of the airbag deployed by the flat plate or rod made of metal or plastic is supported.

According to the sixth aspect of the present invention, when the support member is bridged between the skeletal members on the side of the vehicle body and moved so as to cross the windows, the airbag in which the support member is formed integrally is formed. It expands and deploys inside the side window. Therefore, the outer side of the airbag in the vehicle width direction is supported by the support member in the inflated and deployed state.

According to the seventh aspect of the invention, the support member is bridged between the frame members on the side of the vehicle body by the inflator for inflating and deploying the air bag, and the supporting member is moved so as to cross the windows. Therefore, the support member inflates the airbag,
The outer side in the vehicle width direction is supported in the unfolded state.

[0020]

Embodiments of the airbag device according to the present invention will be described below. In each embodiment described below, the same components are designated by the same reference numerals in the drawings, and the duplicated description will be omitted.

First Embodiment FIG. 1 shows a side portion of a vehicle on which an airbag device 27 of this embodiment is mounted, and FIG. 2 shows a side portion of the vehicle as seen from the back of an occupant.

As shown in FIGS. 1 and 2, an airbag device 27 includes an inflator 29 arranged in a roof side rail 11 which is a skeleton member on the side of the vehicle body, and gas generated by the inflator 29. The airbag 31 inflates and deploys inside the window portion 17 of the section.

Further, the airbag device 27 of this embodiment is
It is housed along the roof side rail 11 on the vehicle body side and moved to a state where it crosses the window portion 17 by being bridged between the deploying airbag 31 and the window portion 17 between the center pillars 33 on the vehicle body side portion. It has a possible supporting member 35 and a moving means 37 for moving the supporting member 35 by detecting the impact force.

One end of the support member 35 is rotatably connected to a fixed fulcrum 39 in the roof side rail 11. The other end of the support member 35 is connected to the connection block 53 of the moving means 37. Most of the support member 35 is stored linearly along the roof side rail 11 in a state where the airbag 31 is not deployed, and is bent along the way to be stored along the center pillar 33. When the connecting block 53 is moved downward (in the direction of arrow a) along the center pillar 33 by the moving means 37, the airbag 31 and the window 1 are rotated while rotating around the fixed fulcrum 39.
It is drawn between 7 and.

The moving means 37 includes a guide portion 43 for guiding the connecting block 53 downward along the center pillar 33,
And a drive unit 45 for moving the connecting block 53 downward. As shown in FIGS. 3A and 3B, the guide portion 43 is composed of a slider 47 having a connecting block 53 formed therein, and a long guide rail 49 for guiding the slider 47 downward. There is.

The slider 47 has the connecting block 53 rotatably supported on one side of the support shaft 51 and the slide block 55 fixed on the other side. A hook 57 for connecting the support member 35 and the slider 47 is attached to the connection block 53. The spindle 51 is
It penetrates through a slide groove 59 formed along the longitudinal direction of the guide rail 49, the connecting block 53 is arranged on one side of the guide rail 49, and the slide block 55 is arranged on the other side. One end of a wire 61 of the drive unit 45 is connected to the slide block 55. A stopper structure 63 is provided at the lower end of the guide rail 49.

The stopper structure 63 is a substantially triangular stopper 67 that is rotatably supported around a pin 65, and a compression coil spring that biases the stopper 67 in the clockwise direction (arrow b direction) in FIG. 3A. And 69. In this stopper structure 63, when the support shaft 51 is located at the lower end of the slide groove 59, the inclined surface 67 of the stopper 67 is formed.
The support shaft 51 slides on a, and the stopper 67 is moved to the position shown in FIG.
In, the counterclockwise direction is rotated against the biasing force of the compression coil spring 69 to retract it from the slide groove 59. When the support shaft 51 passes over the inclined surface 67a, the stopper 67 restrains the upward movement of the support shaft 51 by projecting the corner portion into the slide groove 59 again by the biasing force of the compression coil spring 69. This prevents the slider 47 from accidentally moving upward.

The drive unit 45 has a piston structure using energy generated by the explosion of explosive powder. That is, as shown in FIG. 4, the drive unit 45 includes a cylinder 71, a piston 73 arranged in the cylinder 71, and an explosive body 74. The piston 73 is slidably accommodated in the cylinder 71. The other end of the wire 61, one end of which is connected to the slider 47, is connected to the piston 73. The explosive body 74 contains explosives. This explosive explodes when the airbag 31 inflates and expands, and the energy caused by this explosion moves the piston 73 from one side to the other side in the cylinder 71.
As a result, the slider 47 moves downward (direction of arrow a) along the center pillar 33 and moves the support member 35. At this time, the connection block 53 moves while rotating with respect to the support shaft 51.

When an impact force is applied to a vehicle equipped with such an air bag device 27 due to a side collision or the like, detection means (not shown) detects this and the explosive of the explosive body 74 is ignited by a signal from the detection means. Explosion in the cylinder 71, and the energy of this explosion causes the piston 73 to move rapidly downward, causing the slider 47 to move downward. As a result, the roof side rail 11 and the center pillar 33
A state in which the accommodated support member 35 is bridged between the deploying airbag 31 and the window portion 17 between the roof side rail 11 and the center pillar 33 on the vehicle body side portion to cross the window portion 17 Move to. In this case, slider 4
The support shaft 51 of 7 is restricted from moving upward by the stopper 67.

At the same time, the inflator 29 is actuated by the signal of the detecting means to fill the air bag 31 with gas. When the air bag 31 is filled with gas, the air bag 31 inflates and deploys toward the window 17 side of the vehicle body side portion to support the occupant's head 23a.

In this case, the support member 35 is moved between the deploying airbag 31 and the window portion 17 so as to be bridged between the roof side rail 11 on the vehicle body side and the center pillar 33 so as to cross the window portion 17. Since it is faster than the time until the airbag 31 is completely deployed, the window 17 on the side of the vehicle body
The outside of the airbag 31 inflated and expanded to the side is the support member 3
Supported by 5. Thereby, the head 23 of the occupant 23
Even if the air bag 31 is pushed to the outside of the vehicle body by moving a toward the window portion 17 side, the air bag 31 does not rotate toward the window portion 17 side, and the air bag 31 does not move with respect to the head 23a of the occupant 23. It can be supported with sufficient restraint force from the initial stage of interference. Further, in the process in which the head 23a of the occupant 23 is supported by the airbag 31 and the impact energy is absorbed, the airbag 3
Since 1 is supported by the support member 35, it is difficult to move to the window 17 side, and the head 23a of the occupant 23 is not attached to the airbag 3
It does not deviate from 1.

Therefore, since it is not necessary to increase the thickness of the airbag 31 or increase the size of the airbag 31, a small inflator 29 can be used. Therefore, the size of the airbag device 27 is reduced, and the airbag device 27 does not project from the roof side rail 11 to the inside of the vehicle compartment. Therefore, the overhead space of the occupant 23 is not narrowed and the occupant 23 is not given a feeling of pressure.

In the above embodiment, the drive portion 45 of the moving means 37 has the piston structure using the energy generated by the explosion of the explosive, but the energy stored in the spring 75 is used as shown in FIG. A piston structure is also acceptable.

That is, as shown in FIG. 5, a sufficiently bent compression coil spring 75 is arranged between the inner wall of the cylinder 71 and the piston 73, and this state is held by the stopper 77. By releasing the stopper 77 when the airbag is deployed, the piston 73 is rapidly moved downward by the urging force (energy) of the compression coil spring 75. According to this structure, since the sealing property inside the cylinder 71 is not required as compared with the case of using the explosive, the structure is simplified.

Second Embodiment FIG. 6 shows an airbag device 79 according to the second embodiment. The present embodiment is an example in which a metal or plastic rod is used as the support member 81.

As shown in FIG. 6, the support member 81 formed of a metal or plastic rod has a movable fulcrum 8 of the roof side rail 11 at one end on the front side in the vehicle front-rear direction.
3 is rotatably supported and the other end on the rear side is moving means 37.
Is connected to the connection block 53. Movable fulcrum 83
Is formed so as to be slidable in the front-rear direction along the roof side rail 11, and is positioned on the front side when the support member 81 is accommodated along the roof side rail 11. At this time, the rear side of the support member 81 is also accommodated along the roof side rail 11.

When an impact force is applied to the vehicle body due to a side collision or the like, a detection means (not shown) detects this, and the explosive of the explosive body 74 is ignited by the signal of the detection means and explodes in the cylinder 71, causing the slider. Move 47 downward. When the slider 47 moves downward, the end portion of the support member 81 on the vehicle rear side moves downward (direction of arrow a) along the center pillar 33, and the movable fulcrum 83 moves to the vehicle rear side while the support member 81 moves. Is pulled out and bridged between the roof side rail 11 on the vehicle body side and the center pillar 33 between the deploying airbag 31 and the window portion 17 and moves to a state where the window portion 17 is crossed. At the same time, the inflator 29 is actuated by the signal of the detecting means to fill the air bag 31 with gas, and the air bag 31 is inflated and deployed toward the window portion side of the vehicle body side. As a result, the occupant 23
The head portion 23 a of the is supported by the airbag 31. The window 17 side of the airbag 31 is supported by the support member 35.

As a result, even if the airbag 31 is pushed outward by the movement of the head 23a of the occupant 23 toward the window portion 17, the airbag 31 does not move toward the window portion 17 side.
The head 23a of the occupant 23 is reliably supported.

Therefore, as in the first embodiment, the thickness of the airbag 31 is increased, or the airbag 31 is thickened.
Since it is not necessary to make the inflator large, a small inflator can be used. Therefore, the airbag device 79 becomes compact and does not project from the roof side rail 11 to the inside of the vehicle compartment, so that the overhead space of the occupant 23 is not narrowed and the occupant 23 is not given a feeling of pressure.

Although the supporting member 81 is formed of a metal or plastic rod in the above embodiment, the supporting member 81 may be formed of a long flat plate made of metal or plastic.

Third Embodiment Next, an airbag device 85 of a third embodiment shown in FIG. 7 will be described. This embodiment is an example in which a substantially triangular fiber woven fabric is used as the support member. That is, the support member 87 is
A corner of the vehicle front side is fixed fulcrum 89 with a triangular fiber woven fabric
It is rotatably supported by. Also, one of the corners on the rear side of the vehicle is connected to the connecting block 53 of the moving means 37. Most of the support member 87 is housed along the roof side rail 11, and the vehicle rear side is housed along the center pillar 33. Therefore, the supporting member 87 is accommodated in a bent state in the middle.

When an impact force is applied to the vehicle body due to a side collision or the like, the detection means (not shown) detects this, and the support member 87 deploys the airbag 31 and the window portion, as in the second embodiment. The bridge 17 is bridged between the roof side rail 11 on the vehicle body side and the center pillar 33, and the window 17
Move to the state of crossing. Along with this, the head portion 23a of the occupant 23 is supported by expanding and deploying toward the window portion 17 side of the vehicle body side portion. The outside of the airbag 31 is supported by the support member 87. As a result, even if the airbag 31 is pushed outward by the movement of the head 23a of the occupant 23 toward the window 17 side, the airbag 31 does not move toward the window 17 side,
The head 23a of the occupant 23 is reliably supported.

Therefore, since it is not necessary to increase the thickness of the airbag 31 or increase the size of the airbag 31, it is possible to use a small inflator. Therefore, the airbag device 85 becomes compact and does not extend from the roof side rail 11 to the inside of the vehicle compartment, so that the overhead space of the occupant is not narrowed and the occupant does not feel a sense of pressure.

Further, in this embodiment, since the supporting member 87 is made of the triangular fiber woven fabric, the window portion 17 side of the airbag 31 can be supported over a wide area.

Fourth Embodiment FIG. 8 shows an airbag device 91 according to the fourth embodiment. The embodiment shown in FIG. 8 is an example in which a band-shaped cloth is used as the support member, and the band-shaped cloth support member 93 is formed integrally with the airbag 31.

As shown in FIGS. 9 (a) and 9 (b), one end 93a of the belt-shaped cloth supporting member 93 is located at the upper portion of the front side of the airbag 31 in the deployed state, and the other end 93b is at the rear side of the vehicle. It is sewn to the airbag 31 so as to be located at the lower part of the side. Further, one end 93 a of the support member 93 is connected to the fixed fulcrum 95 of the roof side rail, and the other end 93 b is connected to the connection block 53 of the moving means 37. The supporting member 93 is normally folded and housed in the roof side rail 11 together with the airbag 31.

When an impact force is applied to the vehicle body due to a side collision or the like, the detection means (not shown) detects this and the explosive of the explosive body 74 is ignited by the signal of the detection means and explodes in the cylinder 71, This energy causes the piston 7
3 rapidly moves downward, and the slider 47 moves downward. As a result, the support member 93 accommodated along the roof side rail 11 and the center pillar 33 is provided between the deploying airbag 31 and the window portion 17 between the roof side rail 11 and the center pillar 33 on the vehicle body side. It moves to the state where it is bridged and the window part 17 is crossed.

At the same time, the inflator 29 is actuated by the signal of the detecting means to fill the air bag 31 with gas. When the air bag 31 is filled with gas, the air bag 31 inflates and deploys toward the window portion 17 side of the vehicle body side portion to support the head portion 23a of the occupant 23. The outside of the airbag 31 that is inflated and expanded toward the window 17 side of the vehicle body side is supported by the support member 93.
Accordingly, even if the airbag 31 is pushed outward by the movement of the head portion 23a of the occupant 23 toward the window portion 17 side, the airbag 31 does not move to the window portion 17 side, and the head portion 23a of the occupant 23 is not moved. Be sure to support.

Therefore, as in the above embodiments, it is not necessary to increase the thickness of the airbag 31 or to increase the size of the airbag 31, so that a small inflator can be used. Therefore, the airbag device 91 becomes compact and does not extend from the roof side rail 11 to the inside of the vehicle compartment. Therefore, the overhead space of the occupant 23 is not narrowed, and the occupant 23 is not given a feeling of pressure.

Further, in this embodiment, the supporting member 93 is formed integrally with the airbag 31, so that the supporting member 93 is formed.
However, when the airbag 31 is forcibly deployed when it is bridged between the roof side rail 11 and the center pillar 33 and crosses the window 17, the airbag 31 is forcibly deployed.
The deployment time of can be accelerated.

Fifth Embodiment Next, an airbag device 97 of the fifth embodiment shown in FIG. 10 will be described. In this embodiment, the support member 35 is bridged between the deploying airbag 31 and the window portion 17 between the roof side rail 11 on the vehicle body side and the center pillar 33 to move the support portion 35 to the state where the window portion 17 is crossed. This is an example in which the inflator 101 that generates the gas with which the airbag 31 is filled is used as the drive unit of the moving unit 99.

As shown in FIG. 11, the inflator 101 of this embodiment includes a cylinder 103 and a cylinder 1
And a piston 105 slidably accommodated in 03,
It is composed of a gas generator 107 arranged on one side of the cylinder 103. A gas supply hole 109 for supplying gas to the airbag 31 is formed in the middle of the cylinder 103. In the initial position, the piston 105 has the gas generator 107 and the gas supply hole 109.
It is located between and. One end of a wire 111 is connected to the piston 105. The wire 111 is wound around a pulley 113 at a connecting portion between the center pillar 33 and the roof side 11 and is routed downward along the center pillar 33, and then is wound around a pulley 115 provided below the center pillar 33. Then, the other end is connected to the connection of the connection block 53 of the guide portion 43.

When an impact force is applied to the vehicle body due to a side collision or the like, the detection means (not shown) detects this and the inflator 101 is activated, and when the gas generator 107 generates gas, the piston 105 moves to the position shown in FIG. By moving the wire 111 toward the left side and pulling the wire 111, the connecting block 53 moves downward (in the direction of the arrow in the drawing) along the center pillar 33 and deploys the support member 35.
And the window 17 between the roof side rail 11 on the side of the vehicle body
Is bridged between the center pillar 33 and the center pillar 33, and the window portion 17 is pulled out to the crossing state. Then, when the piston 105 passes through the gas supply hole 109, gas is supplied to the airbag 31 to inflate and expand. At this time, the support member 3 has already been
5 is bridged between the roof side rail 11 on the side of the vehicle body and the center pillar 33 between the airbag 31 and the window portion 17, which are deployed from between the roof panel and the lining, and moved to a state where the window portion 17 is crossed. Therefore, the vehicle body side portion of the inflated and deployed airbag 31 is supported.

As a result, even if the airbag 31 is pushed outward by the movement of the head 23a of the occupant 23 toward the window portion 17, the airbag 31 does not move toward the window portion 17 side.
The head 23a of the occupant 23 is reliably supported.

Therefore, as in the above-described embodiments, it is not necessary to increase the thickness of the airbag 31 or increase the size of the airbag 31, so that a small inflator can be used. In this case, even if the inflator is used as the drive unit of the moving means, the support member 35 is moved before the airbag 31 is deployed, so that the inflator does not need to be large. That is, if a driving force capable of deploying the airbag 31 can be generated, the supporting means can be moved, so that a small inflator can be used. Therefore, the airbag device 9
Since 7 is small, the airbag device 97 does not extend from the roof side to the inside of the vehicle compartment. Therefore, the overhead space of the occupant 23 is not narrowed, and the occupant 23 is not given a feeling of pressure.

Further, in this embodiment, since the inflator 101 for generating the gas for inflating and deploying the air bag 31 is used as the drive portion of the moving means, the number of parts can be reduced and the manufacturing cost can be reduced. It becomes possible.

In each of the above-described embodiments, an example in which the present embodiment is applied to the airbag device provided on the roof side rail 11 is shown. However, the present invention is not limited to this, and it is attached to a door and inflated upward inside the window. The present invention can also be applied to a deployable device, and an airbag device attached to the A pillar, the B pillar, and the C pillar and deployed in the vehicle front-rear direction and rearward inside the window.

[0058]

As described above, according to the invention of claim 1, the moving means bridges the support member between the skeleton members on the side of the vehicle body between the deploying airbag and the window portion, and the window portion. Since the airbag is moved to the intersecting state, the outside of the airbag in the vehicle width direction is supported by the support member. Accordingly, it is not necessary to increase the thickness of the airbag as a whole or to increase the size of the airbag, so that the airbag can be inflated and deployed with a small driving force. Therefore, the size of the airbag device does not increase, so that the airbag device does not extend from the vehicle body side portion to the vehicle interior side, and the overhead space of the occupant is not narrowed. As a result, the occupant is not given a feeling of pressure.

According to the second aspect of the present invention, the weight can be reduced by using the band-shaped cloth as the supporting member.

According to the third aspect of the present invention, the energy generated by the explosion of the explosive is used as the drive unit of the moving means, so that the skeleton member on the side of the vehicle body is provided between the airbag for deploying the support member and the window. You can quickly move to a state where you can bridge the windows and cross the windows.

According to the fourth aspect of the present invention, a simple structure can be obtained by using the energy stored in the spring as the drive unit of the moving means.

According to the fifth aspect of the present invention, by using the flat plate or rod made of metal or plastic as the support member, the side portion of the vehicle body of the airbag can be supported more reliably.

According to the sixth aspect of the present invention, by forming the support member integrally with the outer side portion of the vehicle body of the airbag, the skeleton member on the vehicle body side portion is provided between the airbag for deploying the support member and the window portion. If the air bag is forcibly inflated by bridging in between and quickly moving to a state where the windows are crossed, the time for deploying the air bag can be shortened.

According to the invention of claim 7, by using an inflator for inflating and deploying the airbag as the moving means for moving the supporting member, it is not necessary to provide a moving means for moving the supporting member, and the parts are It is possible to reduce the number of points and the manufacturing cost.

[Brief description of drawings]

FIG. 1 is a side view showing a side portion of a vehicle equipped with an airbag device according to a first embodiment of the present invention.

FIG. 2 is a rear view of a side portion of a vehicle equipped with the airbag apparatus according to the first embodiment of the present invention, as viewed from a back side of an occupant.

FIG. 3 shows a guide portion of the airbag device of the first embodiment,
(A) is a front view and (b) is a side view.

FIG. 4 is a front view showing a configuration of a moving means of the airbag apparatus according to the first embodiment.

FIG. 5 is a front view showing the configuration of another moving means of the airbag apparatus of the first embodiment.

FIG. 6 is a side view showing a side portion of a vehicle equipped with an airbag device according to a second embodiment of the present invention.

FIG. 7 is a side view showing a side portion of a vehicle equipped with an airbag device according to a third embodiment of the present invention.

FIG. 8 is a side view showing a side portion of a vehicle equipped with an airbag device according to a fourth embodiment of the present invention.

FIG. 9 shows an airbag of an airbag device according to a fourth embodiment of the present invention, (a) is a front view and (b) is a side view.

FIG. 10 is a side view showing a side portion of a vehicle equipped with an airbag device according to a fifth embodiment of the present invention.

FIG. 11 is a front view showing the structure of an inflator of an airbag device according to a fifth embodiment of the present invention.

FIG. 12 is a side view showing a side portion of a vehicle equipped with a conventional airbag device.

FIG. 13 is a rear view of a side portion of a vehicle equipped with a conventional airbag device as viewed from a back side of an occupant.

[Explanation of symbols]

 11 roof side rail 17 window part 27, 79, 85, 91, 97 airbag device 31 airbag 33 center pillar 35, 81, 87, 93 support member 37, 99 moving means 43 guide portion 45 drive portion 101 inflator

Claims (7)

[Claims] 1. An airbag device having an airbag which is provided on a side portion of a vehicle body and inflates and deploys inside a window portion of the vehicle body side when an impact force in a vehicle width direction is detected. A support member that is installed and is movable between the deploying airbag and the window portion so as to bridge the skeletal members on the vehicle body side portion so as to cross the window portion; and the support member by the impact force detection. An airbag device comprising: a moving unit that moves the airbag. 2. The airbag device according to claim 1, wherein the support member is a belt-shaped cloth. 3. The invention according to claim 1 or 2, wherein the moving means includes a guide portion for guiding one end of the support member along the center pillar and a drive portion for driving one end of the support member. The air bag device, wherein the drive unit has a piston structure that uses energy generated by the explosion of explosive powder. 4. The invention according to claim 1 or 2, wherein the moving means includes a guide portion for guiding one end of the support member along the center pillar and a drive portion for driving one end of the support member. The airbag device, wherein the drive unit has a piston structure using energy stored in a spring. 5. The airbag device according to claim 1, wherein the support member is a flat plate or a rod made of metal or plastic. 6. The airbag device according to claim 1, wherein the support member is formed integrally with a vehicle body outer side portion of the airbag. 7. The airbag device according to claim 1, wherein the moving means is an inflator for inflating and deploying the airbag.