Gas bag module

• US 20050134021A1
• Filed: 12/13/2004
• Published: 06/23/2005
• Est. Priority Date: 12/22/2003
• Status: Abandoned Application

• Current Assignee: TRW Automotive GmbH (Apollo Global Management, Inc.)
• Original Assignee: TRW Automotive GmbH (Apollo Global Management, Inc.)
• Inventors: Acker, Dominique, Hofmann, Sven
• Application Number:
  US11/011,002
• Publication Number:
  US 20050134021A1
• Time in Patent Office: Days
• US Class Current: 280/728.200
• CPC Class Codes: B60R 2021/23316 Inner seams, e.g. creating separate compartments or used as tethering means
• 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

Abstract

A gas bag module (10) for a safety arrangement in vehicles comprises a gas bag (12) which has at least two chambers (16, 18) separated from each other by a separating seam (20) and has a mounting opening (22) formed in one of the chambers (18), and a gas generator (14) held at least partially in the mounting opening (22). The gas generator comprises a housing (24) which has a diffusor section (26) associated with the chambers (16, 18) and has a fastening section (30, 32) for mounting the gas generator (14) securely with the vehicle. The fastening section (28) of the gas generator housing held in the mounting opening (22) adjoins a wall section (42) of the mounting opening (22) on the inside thereof. Further, a fastening means (44) is provided, which fixes the wall section (42) to the fastening section (30, 32) from the exterior and also acts upon the separating seam (20) with tension and secures it to the diffusor section (26).

Claims

1. A gas bag module (10) for a safety arrangement in vehicles comprising

a gas bag (12) having at least two chambers (16, 18) separated from each other by a separating seam (20) and a mounting opening (22) formed in one of the chambers (16), and

a gas generator (14) held at least partially in the mounting opening (22) and having a housing (24), wherein the housing comprises a diffusor section (26) associated with the chambers (16, 18) and a fastening section (30, 32) for mounting the gas generator (14) securely with the vehicle,

wherein the fastening section (30, 32) is held inside the mounting opening (22) and adjoins a wall section (42) of the mounting opening (22), and

wherein a fastening means (44) is provided, which fixes the wall section (42) from the exterior of the mounting opening on the fastening section (30, 32) and also acts upon the separating seam (20) with tension and secures it to the diffusor section (26).

2. The gas bag module (10) according to claim 1, characterized in that the gas generator (14) is a tubular gas generator.

3. The gas bag module (10) according to claim 1, characterized in that the gas bag (12) is a two-chambered side gas bag.

4. The gas bag module (10) according to claims 1, characterized in that the diffusor section (26) is adapted for filling the chambers (16, 18) with different internal pressures.

5. The gas bag module (10) according to claim 1, characterized in that the fastening section (30, 32) is arranged opposite the diffusor section (26).

6. The gas bag module according to claim 1, characterized in that the fastening section (30, 32) comprises at least one fastening tongue (30).

7. The gas bag module according to claim 6, characterized in that the fastening tongue (30) projects radially from the housing (24).

8. The gas bag module according to claim 6, characterized in that the fastening tongue extends along the housing (24).

9. The gas bag module according to claim 1, characterized in that the fastening section (30, 32) comprises several fastening points (32) which correspond to fastening points (48;

50) in the fastening means (44) and in the wall section (42).

10. The gas bag module according to claim 1, characterized in that the fastening means (44) comprises two strips lying opposite each other.

11. The gas bag module according to claim 1, characterized in that the fastening means (44) comprises a strip with a U-shaped cross-sectional profile, which embraces the fastening section (30, 32) together with the adjoining wall section (42).

12. The gas bag module according to claim 11, characterized in that the strip (44) has a fold with perforations (46).

13. The gas bag module according to claim 1, characterized in that the fastening means (44) comprises one or more angled sections with fastening points (52) for mounting the gas bag module (10) securely with the vehicle.