JP2974048B2 - Airbag device for side collision of vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an airbag device for a side collision of a vehicle, and more particularly to a seat frame, a pad material attached to the seat frame, and a skin material covering the pad material. A storage container provided on a side portion of a vehicle seat comprising: a storage container mounted on the seat frame; a gas generator stored and fixed in the storage container; and a gas generator which is ejected from the gas generator when the gas generator is operated. The present invention relates to an airbag device for a side collision of a vehicle, comprising an airbag body fixed to the storage container so that gas flows therein.

[0002]

2. Description of the Related Art Conventionally, in order to avoid a direct impact between a side wall of a vehicle body such as a door deformed by an impact load and a seated occupant in a side collision of a vehicle, various airbag devices have been used. There has been proposed, for example, a vehicle seat structure as disclosed in Japanese Patent Application Laid-Open No. 4-50052.

[0003] In this vehicle seat structure, an airbag device is provided outside a seatback side portion facing a vehicle body side wall side so as to inflate in a space perpendicular to the vehicle body side wall side or in a space between a seated person and the vehicle. Have been. This airbag device is mounted on the side of the seat frame.

[0004]

However, when the airbag device is mounted on the side of the seat frame of the seatback, when the vehicle seat receives an impact load from the front-rear direction at the time of a collision or the like, The seat frame of the seat back receives an impact load that bends in the front-rear direction, and the seat frame may be bent or bent. The deformation of the seat frame causes the storage container of the airbag device to be stored in the storage container. There is a risk that the gas generator to be fixed may be deformed, a medicine or the like in the gas generator may be scattered, or the gas generator may not operate.

According to the present invention, when a vehicle seat receives an impact load from the front-rear direction and the seat frame of the seat back is subjected to an impact load that bends in the front-rear direction, the seat frame is deformed and the airbag is deformed. The storage container of the device and the gas generator stored and fixed in the storage container are not likely to be deformed, and it is possible to prevent the medicine or the like in the gas generator from scattering or the gas generator from operating. It is an object of the present invention to provide a side collision airbag device for a vehicle.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an airbag device for a side collision of a vehicle according to claim 1 of the present invention has a seat frame and a seat frame. A storage container provided on a side portion of a vehicle seat including a pad material to be attached and a skin material covering the pad material, the storage container to be attached to the seat frame, and a gas generator stored and fixed to the storage container; An airbag body fixed to the storage container so that gas ejected from the gas generator flows in when the gas generator is operated. Attachment portions are formed at the upper and lower ends, and the attachment portions at the upper and lower ends of the storage container are attached along the longitudinal direction of the side frames of the seat frame. When deformed in a direction, at least one of the mounting portion of the upper and lower ends of the container is characterized in that it is adapted to be deformed.

According to a second aspect of the present invention, there is provided an airbag device for a side collision of a vehicle, comprising a seat frame, a pad material attached to the seat frame, and a skin material covering the pad material. , A storage container attached to the seat frame, a gas generator stored and fixed in the storage container, and a gas blown out from the gas generator when the gas generator is operated. As described above, in a side airbag device for a vehicle including an airbag body fixed to the storage container, mounting portions are formed at upper and lower ends of the storage container, and mounting portions at upper and lower ends of the storage container are seats. Attached along the longitudinal direction of the side frame of the frame, an attachment portion at one end of the storage container is formed on a hook, and the hook is locked by a locking portion formed on a side portion of the side frame. When the side frame is deformed in the front-rear direction, the hook at one end of the storage container is deformed, and the locked state with the locking portion of the side frame is released. It is characterized by.

[0008]

According to the airbag device for a vehicle according to the first aspect of the present invention, mounting portions are formed at the upper and lower ends of the storage container, and the mounting portions at the upper and lower ends of the storage container are located on the side of the seat frame. When the upper part of the side frame of the seat frame is deformed in the front-back direction, at least one of the upper and lower ends of the storage container can be deformed. Therefore, when the side frame of the seat frame is deformed, at least one of the upper and lower ends of the storage container is deformed, and the airbag device is deformed following the deformation of the side frame of the seat frame. Therefore, it is possible to prevent the medicine or the like in the gas generator from being scattered or the gas generator from operating.

According to the side airbag device for a vehicle according to the second aspect of the present invention, the mounting portions are formed at the upper and lower ends of the storage container, and the mounting portions at the upper and lower ends of the storage container are on the side of the seat frame. Attached along the longitudinal direction of the part frame, an attaching part at one end of the storage container is formed on a hook, and the hook is engaged with an engaging part formed on a side part of the side frame, When the side frame is deformed in the front-rear direction, the hook on one end side of the storage container is deformed and the locked state of the side frame with the locking portion is released, so that the seat frame is When the side frame is deformed, the hook on one end side of the storage container is deformed, and the airbag device does not deform following the deformation of the side frame of the seat frame. Splatter or gas generator It can be prevented from becoming inoperative.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an airbag device for a vehicle according to the present invention; 1 to 3 show one embodiment of a side collision airbag device for a vehicle according to the present invention. The side collision airbag device of this vehicle is a driver's seat, a passenger seat or a vehicle seat. Can be applied to rear seats.

As shown in FIG. 2, the side collision airbag device 11 of the vehicle is modularized and fixed to the seat frame 3 of the seatback 2. This airbag device 11
As shown in FIG. 1, has a storage container 14 that stores a gas generator 15 and an airbag body 16.
4 is a bolt 14 attached to the side frame 3a of the seat frame 3.
a and the nut 14b.

A pad material and a skin material are attached to the seat frame 3 of the seat back 2, but they are well known in the art and will not be described. Airbag device 1
The airbag body 16 is configured to be able to swell forward by breaking a slit formed in the pad material or a sewn portion of a main side cloth and a horizontal gusset cloth of a skin material.

As shown in FIG. 1, the storage container 14 is formed so that a cylindrical gas generator 15 can be stored and fixed at the rear side, and the folded airbag body 16 is stored and fixed at the front side. It is formed in a substantially flat box shape to obtain.
Further, a gas ejection opening 14c is formed in a front portion on the gas ejection side of the storage container 14.

At the upper and lower ends of the storage container 14, mounting portions 2 are provided.
1 and 22 are formed. The storage container 14 is mounted along the longitudinal direction of the side frame 3a. The mounting portion 21 at the upper end of the storage container 14 is formed of a hook, and the mounting portion 22 at the lower end is formed in a plate shape extending downward.

The mounting portion 21 at the upper end of the storage container 14 is bent in a substantially L shape from a horizontal piece 21a and a vertical piece 21b hanging downward from the tip of the horizontal piece 21a. It is not limited to the one that bends in an L-shape, but may be simply a horizontal piece 21a.

The hook, which is the mounting portion 21 at the upper end of the storage container 14, is inserted and locked in a slit 24 as a locking portion formed in the side frame 3a of the seat frame 3, and the mounting portion 22 at the lower end is fixed to the seat frame. 3 side frame 3a
Are fixed by the bolts 14a and the nuts 14b.

The mounting portion 21 at the upper end of the storage container 14 is not limited to a hook, but may be formed as long as the mounting portion at one end of the storage container is fragile as compared with the other so as to be deformable. Alternatively, the plate-shaped mounting portion 21 may be bolted or riveted with a fragile bolt or rivet having a small diameter.

As shown in FIG. 4, the mounting portion 21 at the upper end of the storage container 14 has a horizontal piece 21a and the horizontal piece 21a.
And a vertical piece 21b hanging downward from the front end of the storage container 14 is used to form a mounting portion 22 at the lower end of the storage container 14 from a bolt, and the mounting portion 22 made of the bolt is used as a seat frame. 3 may be inserted into a through hole formed in the side frame 3a and fixed to the nut 14b.

Next, referring to FIG.
A case where an impact load is applied to the side frame 3a in the front-rear direction will be described. First, when an impact load is applied to the side frame 3a from the front or the rear, the side frame 3
The upper part of a is bent or bent in the front-back direction.

The mounting portion 22 at the lower end of the storage container 14 is attached to the side frame 3a of the seat frame 3 by the bolt 14a.
And the nut 14b, and is stronger than the hook, which is the mounting portion 21 at the upper end of the storage container 14, so that the mounting portion 22 at the lower end of the storage container 14 is in a state where there is no possibility of deformation.

Further, since the hook as the mounting portion 21 at the upper end of the storage container 14 is formed to be weaker than the other, the side frame 3a of the seat frame 3 is deformed when the side frame 3a is deformed. The hook as the attachment portion 21 on one end side is deformed, and the side frame 3a of the seat frame 3 is deformed.
Is released from the locking portion 24.

Therefore, when the side frame 3a of the seat frame 3 is deformed, the hook as the mounting portion 21 at one end of the storage container 14 is deformed, and the airbag device 11 follows the deformation of the side frame 3a. Without deformation
Drugs or the like in the gas generator 15 may be scattered,
5 can be prevented from becoming inoperative.

The embodiment described above is an embodiment of the present invention, and the shapes and sizes of the storage container and the upper and lower mounting portions are not limited to those shown in the drawings.
Various modifications can be made.

[0024]

The above is the configuration of the embodiment of the vehicle side collision airbag apparatus according to the present invention. According to the vehicle side collision airbag apparatus according to claim 1 of the present invention, Attachment portions are formed at the upper and lower ends of the storage container, and the attachment portions at the upper and lower ends of the storage container are attached along the longitudinal direction of the side frames of the seat frame, and the upper portions of the side frames of the seat frame extend in the front-rear direction. When deformed, at least one of the upper and lower ends of the storage container is configured to be deformable, so when the side frame of the seat frame is deformed, at least one of the upper and lower ends of the storage container is deformed. One of the mounting portions is deformed, the airbag device does not deform following the deformation of the side frame of the seat frame, the medicine etc. in the gas generator is scattered, or the gas generator does not operate It is possible to prevent.

According to the vehicle side airbag device according to the second aspect of the present invention, the mounting portions are formed at the upper and lower ends of the storage container, and the mounting portions at the upper and lower ends of the storage container are located on the side of the seat frame. Attached along the longitudinal direction of the part frame, an attaching part at one end of the storage container is formed on a hook, and the hook is engaged with an engaging part formed on a side part of the side frame, When the side frame is deformed in the front-rear direction, the hook on one end side of the storage container is deformed and the locked state of the side frame with the locking portion is released, so that the seat frame is When the side frame is deformed, the hook on one end side of the storage container is deformed, and the airbag device does not deform following the deformation of the side frame of the seat frame. Splatter or gas generator It can be prevented from becoming inoperative.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment in which a vehicle side airbag device according to the present invention is applied to a seatback.

FIG. 2 is a side view showing one embodiment in which the side airbag device for a vehicle according to the present invention is applied to a seat back.

FIG. 3 is a side view of an airbag device for a side collision of a vehicle when an impact load in a front-rear direction is applied to a vehicle seat to which the present invention is applied.

FIG. 4 is a side view showing a different embodiment of a mounting portion of the vehicle side airbag device according to the present invention.

[Explanation of symbols]

 2 Seat back 3 Seat frame 3a Side seat frame 11 Airbag device 14 Storage container 14a Bolt 14b Nut 14c Gas ejection opening 15 Gas generator 16 Airbag main body 21 Mounting part 21a Horizontal piece 21b Vertical piece 22 Mounting part 24 Locking part

Continuation of the front page (56) References JP-A-4-50052 (JP, A) JP-A-3-281455 (JP, A) JP-A-4-356246 (JP, A) JP-A-5-338512 (JP) JP-A-2-197449 (JP, A) JP-A-5-72606 (JP, U) JP-A-5-72605 (JP, U) JP-A-2-106952 (JP, U) Field surveyed (Int.Cl. ⁶ , DB name) B60R 21/22

Claims (2)

(57) [Claims] A storage container provided on a side portion of a vehicle seat including a seat frame, a pad material attached to the seat frame, and a skin material covering the pad material, the storage container being attached to the seat frame; A vehicle comprising: a gas generator housed and fixed in the storage container; and an airbag body fixed to the storage container so that gas ejected from the gas generator flows when the gas generator is operated. In the side airbag device, mounting portions are formed at upper and lower ends of the storage container, and mounting portions at upper and lower ends of the storage container are mounted along a longitudinal direction of a side frame of the seat frame. When the upper part of the side frame is deformed in the front-back direction, at least one of the upper and lower ends of the storage container can be deformed. Side-impact air bag device of the vehicle. 2. A storage container provided on a side portion of a vehicle seat including a seat frame, a pad material attached to the seat frame, and a skin material covering the pad material, the container being attached to the seat frame. A vehicle comprising: a gas generator housed and fixed in the storage container; and an airbag body fixed to the storage container so that gas ejected from the gas generator flows when the gas generator is operated. In the side collision airbag device, mounting portions are formed at upper and lower ends of the storage container, and mounting portions at both upper and lower ends of the storage container are mounted along a longitudinal direction of a side frame of the seat frame. An attachment portion at one end is formed on a hook, and the hook is engaged with an engagement portion formed on a side portion of the side frame, and the side frame is deformed in the front-rear direction. The case, one end of the hook of the container is deformed, the side airbag device for a vehicle, characterized in that the locking state is adapted to be released between the engaging portion of the side frame.