Gas bag lateral impact protective device

• US 5,722,685 A
• Filed: 10/22/1996
• Issued: 03/03/1998
• Est. Priority Date: 11/02/1995
• Status: Expired due to Fees

• Current Assignee: TRW Occupant Restraint Systems GmbH
• Original Assignee: TRW Occupant Restraint Systems GmbH
• Inventors: Eyrainer, Heinz
• Primary Examiner(s): Ellis, Christopher P.
• Application Number:
  US08/735,346
• Time in Patent Office: 497 Days
• Field of Search: 280/730.2, 280/730.1, 280/729, 280/728.1, 280/743.1, 280/743.2
• US Class Current: 280/730.2
• CPC Class Codes: B60R 2021/23316 Inner seams, e.g. creating separate compartments or used as tethering means
• CPC Class Codes: B60R 2021/23386 External tether means
• CPC Class Codes: B60R 21/23138 specially adapted for side protection B60R21/23184, B60R21/232 take precedence
• CPC Class Codes: B60R 21/233 comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other B60R21/232 takes precedence
• CPC Class Codes: B60R 21/2338 Tethers

Abstract

A gas bag lateral impact protective device for vehicle occupants is provided, which is integrated in a vehicle door. The gas bag lateral impact protective device comprises a compressed gas source, a thorax protecting gas bag and a head protecting gas bag provided at said thorax protecting gas bag. The thorax protecting gas bag and the head protecting gas bag are intended to be inflated by the compressed gas source and deploy, upon inflation, in a space to the side of the vehicle door, the head protecting gas bag deploying above the thorax protecting gas bag.

Claims

1. A gas bag lateral impact protective device for vehicle occupants, which is integrated in a vehicle door and comprises a compressed gas source, a thorax protecting gas bag and a head protecting gas bag connected to said thorax protecting gas bag, said thorax protecting gas bag and said head protecting gas bag being intended to be inflated by said compressed gas source and deploying, upon inflation, in a space to the side of said vehicle door, said head protecting gas bag deploying above said thorax protecting gas bag, said head protecting gas bag being in fluid communication with said thorax protecting gas bag, said thorax protecting gas bag having an outlet opening interconnected with an inlet opening of said head protecting gas bag, a sewing-off seam being provided in the region of said outlet opening so that the cross sectional area of said outlet opening is reduced, a dividing seam being provided on said thorax protecting gas bag, said dividing seam being in the fluid path from said compressed gas source to said outlet opening.

2. The gas bag lateral impact protective device as claimed in claim 1, wherein said head protecting gas bag is in fluid communication with said thorax protecting gas bag.

3. The gas bag lateral impact protective device as claimed in claim 2, wherein said thorax protecting gas bag is provided with an outlet opening interconnected with an inlet opening of said head protecting gas bag.

4. The gas bag lateral impact protective device as claimed in claim 3, wherein a sewing-off seam is provided in the region of said outlet opening so that the cross sectional area of said outlet opening is reduced.

5. The gas bag lateral impact protective device as claimed in claim 1, wherein said dividing seam divides said thorax protecting gas bag into a first and a second chamber, which are connected for fluid flow, said compressed gas source being connected for fluid flow with said first chamber and said outlet opening being arranged in said second chamber.

6. The gas bag lateral impact protective device as claimed in claim 1, wherein said head protecting gas bag is formed integrally with said thorax protecting gas bag.

7. The gas bag lateral impact protective device as claimed in claim 1, wherein a sewn-off fabric area is provided for stabilizing said head protecting gas bag with respect to said thorax protecting gas bag.

8. The gas bag lateral impact protective device as claimed in claim 1, wherein at least one tethering strap is provided for stabilizing said head protecting gas bag with respect to said thorax protecting gas bag.