JP3015514U - Side airbag system - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an airbag system in which the number of components is reduced by directly mounting components such as an airbag and a gas generator on a frame of a seat to reduce costs. An airbag (12) is deployed between a side surface of a vehicle compartment and an occupant seated on a seat when a side collision of a vehicle occurs, and a gas generator (11) for generating gas for deploying the airbag (12). ) Are attached via a holding member so that the gas generator reaches the inside of the airbag, and these (11) and (12) are attached to the backrest portion (3a) of the seat.
In the airbag system for side impact, which is built in the outer side surface of the frame, a frame constituting a skeleton of the backrest (3a) as the holding member to which the airbag (12) and the gas generator (11) are attached ( The frame (6) is used in 6).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a side airbag system for protecting an occupant in a side collision of a vehicle.

[0002]

[Prior art]

 This type of side impact airbag device includes an airbag that is folded and stored small and a gas generator that supplies gas to the airbag and deploys it. When a side collision of a vehicle occurs, The airbag is deployed between the side of the passenger compartment and the occupant sitting on the seat to protect the occupant from a secondary collision with the side of the passenger compartment. To connect this airbag to the gas generator, it is usually fixed on the retainer, which is the base material, by aligning the gas inlet part of the airbag with the gas discharge part of the gas generator. There is. The side impact airbag device is built into the seat or the side of the passenger compartment. When the airbag device is built into the seat, for example, the airbag device 1 includes the airbag and the gas generator in a storage case 2 that also serves as the retainer. The storage case 2 is stored and fixed to the frame 4 of the backrest 3a of the seat 3 as shown in FIG.

[0003]

[Problems to be solved by the device]

 By the way, such a mounting structure of the airbag device 1 to the seat 3 has a form in which the frame 4 and the retainer of the airbag device 1 are overlapped, considering the entire seat.

The present invention has been made in view of the above problems of the prior art, and its object is to directly attach components such as an airbag and a gas generator to a frame of a seat. The aim is to provide an air bag system that reduces the number of parts and reduces costs.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, an airbag system for a side impact according to the present invention is provided for deploying an airbag to be deployed between a side surface of a vehicle and an occupant seated on a seat at the time of a side collision of a vehicle, and an airbag to deploy the airbag. A side impact airbag system in which a gas generator for generating gas is attached via a holding member so that the gas reaches the inside of the airbag, and these are built into the outer surface of the backrest portion of the seat. In the above, the frame that constitutes the skeleton of the backrest is used as the holding member to which the air bag and the gas generator are attached.

In addition, a seat having a backrest rotatable with respect to the seat and a hollow frame member embedded in the backrest and supporting the backrest, the front end of the hollow frame member pivoting to the seat. A frame provided with a connecting member that is freely connected and protruding downward, an air bag that expands between the side surface of the passenger compartment and an occupant seated on the seat in the event of a side collision of the vehicle, and for expanding the airbag. In the airbag system for a side impact including the gas generator for generating the gas, the airbag and the gas generator hold the connecting member on the outside so that the gas reaches the inside of the airbag. The members may be sandwiched and fastened together.

Further, the connecting member is a plate-like member and is disposed with a plane facing the side of the vehicle. The partition member extends to the seat surface portion on the outer surface side of the connecting member, and at least a part of the periphery thereof. It is possible to provide an air bag storage part that surrounds the.

Further, a through hole is provided in a portion of the connecting member located in the airbag storage portion, and the airbag is arranged in the airbag storage portion so as to be folded so as to cover the through hole. The gas generator may be arranged on the inner surface side of the connecting member such that the gas release hole is located in the through hole.

[0009]

[Action]

 According to the above configuration, the airbag and the gas generator are attached to the frame forming the skeleton of the backrest using the frame as a base material, so that the conventional retainer can be eliminated.

In addition, a seat having a backrest rotatable with respect to the seat, and a hollow frame member embedded in the backrest and supporting the backrest, have both end faces pivotable to the seat. A frame provided with a connecting member that is freely connected and protruding downward, an air bag that expands between the side surface of the passenger compartment and an occupant seated on the seat in the event of a side collision of the vehicle, and for expanding the airbag. In the airbag system for a side impact including the gas generator for generating the gas, the airbag and the gas generator hold the connecting member on the outside so that the gas reaches the inside of the airbag. If the members are sandwiched and fastened together, the connecting member is generally in the form of a plate, so that it is an optimal position for mounting the components.

Further, the connecting member is plate-shaped and is disposed with its plane facing the side of the vehicle, and at least a part of the periphery of the connecting member is surrounded by a partition member reaching the seat surface portion on the outer surface side of the connecting member. If the opened air bag storage portion is provided, the outer surface side of the connecting member only needs to be surrounded by the partition member, so that the air bag storage portion can be easily formed.

Further, a through hole is provided in a portion of the connecting member located in the airbag storage portion, and the airbag is folded and arranged in the airbag storage portion so as to cover the through hole. If the generator is arranged on the inner surface side of the connecting member so that the gas release hole is located in the through hole, these parts can be arranged compactly.

[0013]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a side view and a rear view of a seat showing an outline of an air bag system of the present invention, FIG. 2 is a side view showing details of an essential part of an airbag system, FIG. 3 is a rear view of the same, and FIG. 4 is A of FIG. FIG.

First, the structure of the seat will be described. In FIG. 1, a seat 3 is composed of a backrest portion 3a and a seating portion 3b, and a hollow frame member 5 made of a round pipe for supporting the backrest portion 3b is embedded in the backrest portion 3a, and both sides of the hollow frame member 5 are embedded. A plate-shaped connecting member 6 is provided so as to project downward on the surface. On the other hand, in the seating portion 3b, a hollow frame member 7 and a plate-shaped connecting member 8 which are also made of round pipes are embedded. A fulcrum 10 is provided at the tip of the connecting member 6 on the side of the backrest 3a, and the connecting member 6 on the side of the backrest 3a rotates to the connecting member 8 on the side of the seat 3b via the fulcrum 10. It is connected to the country.

Next, in FIG. 2 and FIG. 3 showing the deployed state of the airbag, the connecting member 6 is composed of a first connecting member 6a and a second connecting member 6b, and the first connecting member 6a has a substantially rectangular shape. The long side of the seat back side is fixed to the side surface of the hollow frame member 5 by welding or the like, and the second connecting member 6b is connected to the lower portion on the outer surface side of the first connecting member 6a by a bolt 13. A fulcrum (shaft hole) 10 is provided at the tip of the second connecting member 6b. An airbag storage portion 17 surrounded by a partition member 15 is provided along the outer periphery of the upper half of the outer surface of the first connecting member 6a, and the seat back side of the airbag storage portion 17 is provided. A bag cover 13 that covers the storage section 17 in an openable and closable manner is attached to the box with screws 27. Reference numeral 16 is a receiving member for the bag cover 13. A through hole 22 is provided in a portion of the first connecting member 6a located in the airbag storage portion 17, and the through hole 22 has a cylindrical gas generating position disposed on the inner surface side of the first connecting member 6a. The gas discharge portion 18 of the container 11 is fitted and the gas inlet of the airbag 12 is attached to the first connecting member 6a by the retainer ring 19 so as to be aligned with the through hole 22. Reference numeral 26 is a code for connecting the gas generator 11 to a collision sensor (not shown). The connecting member 6 may be integrally formed.

Next, referring to FIG. 4 showing the stored state of the airbag, the airbag storage portion 17 is formed so that the cushion member 29 of the seat is partitioned by the partition member 15, and the bag cover 13 is flush with the seat cover. Is provided. Then, as shown in the figure, the airbag 12 is folded toward the outside of the seat and stored in the airbag storage portion 17. Then, a cylindrical gas discharge portion 11a protruding from the tip of the gas generator 11 is fitted into the through hole 22 of the first connecting member 6a, and the gas introduction portion of the airbag 12 is introduced into the gas discharge portion 11a. The hole and the retainer ring 19 are fitted, and the flange 11a of the gas generator, the first connecting member 6a, the airbag 12, and the retainer ring 19 are fastened together with the bolt 20 fixed to the retainer ring. The gas generator 11 is fixed to the first connecting member 6a.

Next, the operation of the side airbag system will be described with reference to FIGS. 2, 3 and 4. In FIG. 4, when a side collision of the vehicle occurs, the gas generator 11 is actuated by a signal from a collision sensor (not shown) to supply gas to the airbag 12, which causes the airbag 12 to inflate. Then, as shown in FIGS. 2 and 3, the bag cover 13 is opened and the airbag 12 is inflated and expanded between the side door 14 and the seat 3 to protect the occupant.

[0018]

[Effect of device]

 As described above, the side impact airbag system of the present invention is a side impact airbag system in which an airbag and a gas generator are incorporated in the outer surface of the backrest portion of the seat. Since the generator is attached to the frame of the backrest using the frame as a base material, the conventional retainer can be eliminated and the cost can be reduced.

If the air bag and the gas generator are attached to the connecting member of the frame, the connecting member is generally in the shape of a plate, which is an optimum position for attaching the air bag and the gas generator. .

Further, the connecting member is plate-shaped and is arranged with a plane facing the side of the vehicle, and at least part of its periphery is surrounded by a partition member reaching the seat surface portion on the outer surface side of the connecting member. If the opened air bag storage portion is provided, the outer surface side of the connecting member only needs to be surrounded by the partition member, so that the air bag storage portion can be easily formed.

Further, a through hole is provided in a portion of the connecting member located in the air bag accommodating portion, and the air bag is folded and arranged in the air bag accommodating portion so as to cover the through hole. If the generator is arranged on the inner surface side of the connecting member so that the gas release hole is located in the through hole, these parts can be arranged compactly.

[Brief description of drawings]

FIG. 1 is a side view and a rear view of a seat showing an outline of an airbag system of the present invention.

FIG. 2 is a side view showing details of an essential part of the airbag system.

FIG. 3 is a rear view showing details of the main part of the airbag system.

FIG. 4 is a sectional view taken along line AA.

FIG. 5 is a side view of a seat showing an outline of a conventional airbag system.

[Explanation of symbols]

 3 seat 3a backrest part 3b seating part 4 frame 5 hollow frame member 6 connecting member 11 gas generator 12 airbag 15 partition member 17 airbag storage part 18 gas discharge part (gas discharge hole) 22 through hole

Claims (4)

[Scope of utility model registration request] 1. An airbag (1) deployed between a side surface of a vehicle compartment and an occupant seated on a seat (3) in the case of a side collision of a vehicle.
2) and a gas generator (11) for generating gas for deploying the airbag (12) are attached via a holding member so that the gas reaches the inside of the airbag (11). ) (12) is incorporated in the outer surface of the backrest portion (3a) of the seat, in a side impact airbag system, the holding member to which the airbag (12) and the gas generator (11) are attached, An airbag system for side impact, characterized by using a frame (4) constituting the skeleton of the backrest. 2. A seat (3) in which a backrest (3a) is rotatable with respect to a seat (3b), and the backrest (3a) is embedded in the seat (3), and the backrest (3).
A frame (4) provided on both sides of a hollow frame member (5) supporting a) with connecting members (6) whose distal end is rotatably connected to the seating portion (3b) and protruding downward. )
An airbag (12) which is deployed between the side surface of the passenger compartment and an occupant seated on the seat in a side collision of a vehicle, and a gas generator (11) which generates gas for deploying the airbag (12). ) And an airbag system for a side impact comprising the airbag (12) and the gas generator (11).
Is a side collision airbag system, wherein the gas is introduced into the airbag by fastening the outer connecting member (6) with a holding member in between. 3. The partition member (1), which is plate-shaped and is disposed with a flat surface facing the side of the vehicle, and extends to the outer surface side of the connection member (6) to reach the seat surface portion.
The airbag system for side collision according to claim 2, further comprising an airbag storage section (17) surrounded by at least a part thereof by (5). 4. A through hole (22) is provided in a portion of the connecting member (6) located in the airbag storage portion (17), and the airbag (12) is provided in the airbag storage portion (17). ) Is disposed so as to cover the through hole (22), and the gas generator (11) is provided in the through hole (22) on the inner surface side of the connecting member (6).
The airbag system for side impact according to claim 3, wherein the airbag system is arranged so that (8) is positioned.