Gas bag module

• US 20020135160A1
• Filed: 03/07/2002
• Published: 09/26/2002
• Est. Priority Date: 03/23/2001
• Status: Abandoned Application

• Current Assignee: TRW Automotive Safety Systems GmbH & Co. KG
• Original Assignee: TRW Automotive Safety Systems GmbH & Co. KG
• Inventors: Lorenz, Christian
• Application Number:
  US10/092,782
• Publication Number:
  US 20020135160A1
• Time in Patent Office: Days
• US Class Current: 280/728.1
• CPC Class Codes: B60R 2021/2375 Folding devices
• CPC Class Codes: B60R 21/201 Packaging straps or envelopes for inflatable members
• 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 21/237 characterised by the way they are folded

Abstract

In a method of joining components of a gas bag module for a vehicle occupant restraint system, at least one component of the gas bag module, preferably the gas bag, is stowed in an envelope. Thereafter, a partial vacuum is produced inside the envelope and the envelope is closed in gas-tight fashion. A gas bag module for a vehicle occupant restraint system consists of at least two components. At least one component is enclosed in gas-tight fashion in an envelope provided with a partial vacuum.

Claims

1. A method of joining components of a gas bag module for a vehicle occupant restraint system, the method comprising the following steps:

at least one component of said gas bag module is stowed in an envelope;

a partial vacuum is produced in an interior space of said envelope;

said envelope is sealed in gas-tight fashion.

2. The method according to claim 1, wherein subsequently said envelope, which encloses at least one component, and further components of said gas bag module are joined to form said gas bag module.

3. The method according to claim 1, wherein said gas bag module has a gas bag which in a folded state is stowed in said envelope.

4. The method according to claim 3, wherein the shape of said folded gas bag is subsequently changed after having stowing it in said envelope.

5. The method according to claim 3, wherein said envelope has at least one tear line.

6. The method according to claim 1, wherein said gas bag module has a gas generator which is stowed in said envelope.

7. The method according to claim 1, wherein said gas bag module has a cover which forms part of said envelope.

8. A gas bag module for a vehicle occupant restraint system, said gas bag module being comprised of at least two components, at least one of said components being enclosed in gas-tight fashion in an envelope provided with a partial vacuum.

9. The gas bag module according to claim 8, wherein said gas bag is enclosed in gas-tight fashion in said envelope.

10. The gas bag module according to claim 8, wherein a gas generator is provided that is enclosed in gas-tight fashion in said envelope.