Side air bag device

• US 10,059,297 B2
• Filed: 07/13/2015
• Issued: 08/28/2018
• Est. Priority Date: 07/14/2014
• Status: Active Grant

• Current Assignee: TS Tech Company Limited
• Original Assignee: TS Tech Company Limited
• Inventors: Tanabe, Jinichi, Hayashi, Kazuhiro
• Primary Examiner(s): Dickson, Paul N
• Assistant Examiner(s): Wilhelm, Timothy
• Application Number:
  US15/325,909
• Publication Number:
  US 20170174169A1
• Time in Patent Office: 1,142 Days
• CPC Class Codes: B60R 2021/2078 in rear seats
• CPC Class Codes: B60R 2021/2172 the cover being connected to the surrounding part and to the module, e.g. floating mounts
• CPC Class Codes: B60R 2021/23153 specially adapted for rear seat passengers
• CPC Class Codes: B60R 21/017 including arrangements for providing electric power to safety arrangements or their actuating means, e.g. to pyrotechnic fuses or electro-mechanic valves
• CPC Class Codes: B60R 21/207 in vehicle seats
• CPC Class Codes: B60R 21/215 characterised by the covers for the inflatable member B60R21/2176 takes precedence
• CPC Class Codes: B60R 21/217 Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
• CPC Class Codes: B60R 21/2171 specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters B60R21/2176 takes precedence
• CPC Class Codes: B60R 21/23138 specially adapted for side protection B60R21/23184, B60R21/232 take precedence
• CPC Class Codes: B60R 21/2334 Expansion control features
• CPC Class Codes: B60R 21/26 characterised by the inflation fluid source or means to control inflation fluid flow arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10

Abstract

A side air bag device is described which is disposed in a space between a vehicle body and a back seat and for which rigidity of attachment to a vehicle body member is improved. The side air bag device provided between a vehicle body and a back seat includes: a base member including a base storage configured to store an air bag and an inflator and a base attachment portion attached to the vehicle body; and a retainer member configured to hold the base storage from a vehicle back side. The retainer member extends from a portion holding the base storage while being bent along the shape of the vehicle body. The retainer member is attached to the vehicle body together with the base attachment portion while being overlapped with the base attachment portion.

Claims

1. A side air bag device provided between a vehicle body and a back seat, comprising:

an expandable air bag;

an inflator configured to supply gas into the air bag;

a base member including a base storage, configured to store the air bag in a folded state and the inflator, the base member being attached between a vehicle body door and the back seat; and

a retainer member that comprises a base storage holding portion configured to hold the base storage from a vehicle back side;

wherein;

the base member is provided with a downwardly-protruding portion that protrudes downward; and

the retainer member extends from the base storage holding portion toward the downwardly-protruding portion, the retainer member being overlapped with the downwardly-protruding portion and attached to the downwardly-protruding portion.

2. The side air bag device according to claim 1, wherein the retainer member directly contacts the base member to be attached to the base member.

3. The side air bag device according to claim 1, wherein the retainer member is fastened to the vehicle body together with the base member.

4. The side air bag device according to claim 1, wherein the downwardly-protruding portion of the base member comprises a rearward protruding portion that protrudes rearward and toward the retainer member.

5. The side air bag device according to claim 4, wherein the downwardly-protruding portion of the base member comprises a downwardly-extending portion that extends downward from an end portion of the rearward protruding portion.

6. The side air bag device according to claim 1, wherein the downwardly-protruding portion of the base member comprises a front projection that projects forward.

7. The side air bag device according to claim 6, wherein the front projection extends in an up-to-down direction.

8. The side air bag device according to claim 1, wherein the downwardly-protruding portion of the base member comprises a plurality of front projections that project forward.

9. The side air bag device according to claim 8, wherein the plurality of front projections are arranged side by side in a lateral direction.

10. The side air bag device according to claim 9, wherein the retainer member is fastened to the base member at a position between two of the plurality of front projections that are arranged side by side in the lateral direction.

11. The side air bag device according to claim 1, wherein the downwardly-protruding portion is disposed at a position of the base member closer to the vehicle body door in a lateral direction.

12. The side air bag device according to claim 1, wherein the retainer member has a curved shape.

13. The side air bag device according to claim 1, wherein the retainer member comprises a side wall portion.

14. The side air bag device according to claim 13, wherein the side wall portion of the retainer member is arranged at a side of a fastening point where the retainer member is fastened to the base member.

15. The side air bag device according to claim 13, wherein the side wall portion of the retainer member extends in an up-to-down direction over a whole range in the up-to-down direction of the downwardly-protruding portion of the base member.

16. The side air bag device according to claim 13, wherein the side wall portion of the retainer member is arranged at a side of the base storage of the base member.

17. A side air bag device provided between a vehicle body and a back seat, comprising:

an expandable air bag;

an inflator configured to supply gas into the air bag;

a base member including a base storage, configured to store the air bag in a folded state and the inflator, the base member being attached between a vehicle body door and the back seat; and

a retainer member that comprises a base storage holding portion configured to hold the base storage from a vehicle back side;

wherein;

the base member is provided with a downwardly-protruding portion that protrudes downward; and

the retainer member extends from the base storage holding portion toward the downwardly-protruding portion, the retainer member being overlapped with the downwardly-protruding portion and fastened to the downwardly-protruding portion.

18. The side air bag device according to claim 17, wherein:

the retainer member comprises a side wall portion; and

the side wall portion of the retainer member is arranged at a side of a fastening point where the retainer member is fastened to the base member.

19. A side air bag device provided between a vehicle body and a back seat, comprising:

an expandable air bag;

an inflator configured to supply gas into the air bag;

a base member including a base storage, configured to store the air bag in a folded state and the inflator, the base member being attached between a vehicle body door and the back seat; and

a retainer member that comprises a base storage holding portion configured to hold the base storage from a vehicle back side;

wherein;

the base member is provided with a downwardly-protruding portion that protrudes downward;

the retainer member extends from the base storage holding portion toward the downwardly-protruding portion, the retainer member being overlapped with the downwardly-protruding portion and attached to the downwardly-protruding portion; and

the side air bag device is configured to be arranged at a side of a seat back of the back seat.

20. The side air bag device according to claim 19, wherein the downwardly-protruding portion is disposed at a position of the base member closer to the vehicle body door in a lateral direction.