JPH0519021U - Air bag device - Google Patents

Abstract

(57) [Summary] [Purpose] When the seat of the vehicle is slid back and forth, the relative position between the occupant and the expanded airbag surface is restricted,
Secure the passenger's protection performance with the airbag. [Constitution] One end of the guide hose 3 is attached to the seat cushion 2
The other end is fixed to the vehicle body, one end of the wire 4 for inserting the guide hose 3 is connected to the vehicle body, and the other end is connected to the cloth belt 9, and the cloth belt 9 regulates the expansion limit of the airbag 7. ..

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an airbag device that protects an occupant in a vehicle collision.

[0002]

[Prior Art]

 In conventional vehicles, the size of the airbag installed on the steering wheel or the instrument panel for the front passengers that expands at the time of a collision is constant, and the airbag surface position during expansion is always constant. Therefore, when the front seat is slid forward and when it is slid backward, the relative positions of the front seat occupant and the surface of the expanded airbag are different, so the protection performance of the occupant due to the airbag varies. Could occur.

[0003]

[Problems to be solved by the device]

 The present invention intends to secure the passenger's protection performance by the airbag by regulating the relative position of the occupant and the surface of the expanded airbag when the seat of the vehicle is slid back and forth.

[0004]

[Means for Solving the Problems]

 In order to achieve this object, an airbag device according to the present invention has a wire attached to one end of a front and rear slide seat or a vehicle body near the seat, and the other end connected to an end of an airbag restraint. It has a guide hose that is inserted through a wire and has one end attached to the seat or the vehicle body side near the seat and the other end attached to the seat near the airbag or the vehicle body side. The position of the expansion surface of the airbag is configured to be displaced in the front-back direction by pulling the airbag restraint.

[0005]

[Action]

 Therefore, the wire is displaced in the guide hose in accordance with the forward / backward sliding of the seat, and the airbag restraint connected to the other end of the wire is pulled by the wire, whereby the expansion surface of the airbag is slid forward / backward of the seat. It is regulated to a position corresponding to the position so that the relative position of the occupant and the airbag expansion surface does not change significantly.

[0006]

【Example】

 Hereinafter, embodiments of the present invention shown in the drawings will be specifically described. 1 and 2, the guide hose 3 having one end fixed to the seat cushion 2 of the sliding front seat 1 of the vehicle has the other end fixed to the vehicle body below the instrument panel, while the other front seat. A wire 4 having one end fixed to the vehicle body side such as a seat rail or a body near the seat cushion 2 is inserted into the guide hose 3 and the other end is connected to a connecting ring 6 arranged on the back side of the steering handle 5. It is installed.

The steering handle 5 is equipped with an airbag 7 that is expanded by introducing gas from an inflator when the vehicle receives a shock such as a collision, and the expanded airbag 7 is provided to the occupant 8 in the front seat 1. Are protected from the above impact. On the other hand, the cloth belt 9 is hung over the airbag 7 when it is expanded, and the end portion of the cloth belt 9 is attached to the connecting ring 6.

Therefore, when the front seat 1 is slid to the rear of the vehicle, one end of the guide hose 3 moves to the rear of the vehicle together with the front seat 1. Therefore, the wire from the other end of the guide hose 3 to the connecting ring 6 is moved by the moving distance. The length of 4 is increased, and the cloth belt 9 is loosened accordingly, and the airbag 7 can be expanded rearward. Further, when the front seat 1 is slid toward the front of the vehicle, one end of the guide hose 3 moves to the front of the vehicle together with the front seat 1. Therefore, the movement distance of the wire 4 from the other end of the guide hose 3 to the connecting ring 6 is increased. The length is reduced, the cloth belt 9 is pulled toward the front of the vehicle correspondingly, and the rearward expansion of the airbag 7 is restricted by the cloth belt 9.

Therefore, when the front seat 1 slides in the front-rear direction of the vehicle, the surface position of the expanded airbag 7 is also displaced in the front-rear direction of the vehicle, and the occupant 8 in the front seat 1 and the expanded air bag 7 move. Since the relative position with respect to the surface can be kept substantially constant as necessary, the protective performance of the occupant 8 by the expanded airbag 7 can always be ensured excellently.

FIG. 3 shows a modification of the above embodiment, in which the same parts as those of the above device are designated by the same reference numerals. That is, one end of the guide hose 3 is fixed to the vehicle body side such as a seat rail or a body near the front seat cushion 2, and one end of the wire 4 is fixed to the front seat cushion 2. The structure is such that it extends rearward and then is inverted forward of the vehicle, and the other parts have the same structure as the above, but the same operational effects as the above-mentioned embodiment can be obtained.

Further, FIG. 4 shows an example for protecting an occupant in the rear seat (not shown) from a shock, and the same reference numerals are given to the same parts as those of the device. That is, one end of the guide hose 3 is fixed to the front seat cushion 2 and the other end is fixed to the seat back 10 of the front seat 1, and one end of the wire 4 is close to the front seat cushion 2 in the seat rail, or It is fixed to the vehicle body side such as a body, and the other end of the wire 4 is attached to the connecting ring 6.

At the upper rear portion of the front seat back 10, an airbag 7 is installed which is expanded by introducing gas from an inflator when the vehicle receives a shock such as a collision. The occupant in the rear seat is protected from the impact. On the other hand, the cloth belt 9 is hung on the airbag 7 when it is expanded, and the end of the cloth belt 9 is attached to the connecting ring 6 via the roll 11.

Therefore, when the front seat 1 is slid to the rear of the vehicle, one end of the guide hose 3 moves to the rear of the vehicle together with the front seat 1. Therefore, the wire from the other end of the guide hose 3 to the connecting ring 6 is moved by the moving distance. The length of 4 is reduced, the cloth belt 9 is pulled correspondingly to the front of the vehicle, and the cloth belt 9 restricts the rearward expansion of the airbag 7. Further, when the front seat 1 is slid toward the front of the vehicle, one end of the guide hose 3 moves to the front of the vehicle together with the front seat 1. Therefore, the movement distance of the wire 4 from the other end of the guide hose 3 to the connecting ring 6 is increased. The length is increased, and the cloth belt 9 is loosened accordingly, so that the air bag 7 can be expanded rearward.

Therefore, as in the case described above, even if the front seat 1 slides in the front-rear direction of the vehicle, the surface positions of the expanded airbags 7 are displaced in the front-rear direction of the vehicle and expand with the passengers in the rear seats. Since the relative position of the opened airbag 7 with respect to the surface can be prevented from largely changing, the protection performance of the rear seat occupant by the opened airbag 7 can be always ensured to be excellent.

Further, one ends of the guide hose 3 and the wire 4 are fixed to the vehicle body side near the front seat cushion 2 and the front seat cushion 2 in reverse to the above, and the guide hose 3 and the wire 4 are once extended to the front of the vehicle. Needless to say, even if the vehicle is reversed to the rear of the vehicle after that, the same operation and effect as described above can be obtained.

Further, instead of the cloth belt 9 that regulates the relative position of the occupant and the airbag expanding surface, a net that covers at least a part of the airbag surface or is sewn on the inside surface of the airbag is used. It is also possible.

[0017]

[Effect of the device]

 In the airbag device according to the present invention, the expansion surface of the air bag is restricted to a position corresponding to the front and rear slide position of the seat according to the front and rear sliding of the vehicle seat, and the relative position between the occupant and the air bag expansion surface. Since the air bag does not change significantly, the passenger's protection performance by the air bag can always be secured, and the reliability of the air bag can be further increased.

[Brief description of drawings]

FIG. 1 is a schematic layout diagram of an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of an essential part of the above embodiment.

FIG. 3 is a schematic layout view of another embodiment of the present invention.

FIG. 4 is a schematic layout view of still another embodiment of the present invention.

[Explanation of symbols]

 1 sliding front seat 2 seat cushion 3 guide hose 4 wire 6 connecting ring 7 airbag 8 occupant 9 cloth belt 10 seat back

Claims (1)

[Scope of utility model registration request] 1. A wire, one end of which is attached to a front-rear slide type seat or a vehicle body side close to the seat and the other end of which is connected to an end portion of an airbag restraint and the wire which is inserted into the seat and the seat. It has a guide hose attached to the vehicle body side and the other end attached to the seat or the vehicle body side, the other end of which is close to the airbag, and the airbag restraint is pulled by the wire in accordance with the forward and backward slide of the seat. An airbag device configured such that the positions of the expansion surfaces are respectively displaced in the front-back direction.