Gas bag for a vehicle occupant restraint system

• US 20070046008A1
• Filed: 08/24/2006
• Published: 03/01/2007
• Est. Priority Date: 08/26/2005
• Status: Abandoned Application

• Current Assignee: TRW Automotive Safety Systems GmbH (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Original Assignee: TRW Automotive Safety Systems GmbH (Zeppelin - Stiftung der Stadt Friedrichshafen)
• Inventors: Keutz, Markus
• Application Number:
  US11/510,380
• Publication Number:
  US 20070046008A1
• Time in Patent Office: Days
• US Class Current: 280/743.100
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration

Abstract

A gas bag for a vehicle occupant restraint system has a pre-cut section forming a lower part, and an upper part connected to the lower part. The pre-cut section forming the lower part, when spread out flat, is substantially one of trapezoidal and ring segment-shaped, and the lower part is funnel-shaped in the inflated state of the gas bag.

Claims

1. A gas bag for a vehicle occupant restraint system,

comprising:

a pre-cut section (16) forming a lower part (12), and an upper part (14) connected to the lower part (12),

wherein the pre-cut section (16) forming the lower part (12), when spread out flat, is substantially one of trapezoidal and ring segment-shaped and wherein the lower part (12) is funnel-shaped in the inflated state of the gas bag (10).

2. The gas bag according to claim 1, wherein the upper part (14) and the lower part (12) are connected to one another all around along an outer circumferential line of the upper part (14).

3. The gas bag according to claim 1, wherein the two inclined sides (22) of the pre-cut section (16) of the lower part (12) are connected to one another.

4. The gas bag according to claim 1, wherein on the narrow side (20) of the pre-cut section (16) of the lower part (12) several appendages (30) are arranged in order to attach the gas bag (10).

5. The gas bag according to claim 4, wherein the appendages (30) are formed in one part with the pre-cut section (16) of the lower part (12).

6. The gas bag according to claim 4, wherein the appendages (30) extend toward the point of the funnel.

7. The gas bag according to claim 4, wherein the appendages (30) have openings (32) for attaching the gas bag (10) in a gas bag module.

8. The gas bag according to claim 1, wherein a pre-cut section (18) forming the upper part (14) is substantially one of circular or elliptical when spread out flat.

9. The gas bag according to claim 1, wherein the lower part (12) and the upper part (14) form portions of an outer surface of the gas bag (10).