Airbag module

• US 20020149185A1
• Filed: 04/12/2002
• Published: 10/17/2002
• Est. Priority Date: 04/17/2001
• Status: Abandoned Application

• Current Assignee: TRW Occupant Restraint Systems GmbH & Co. KG
• Original Assignee: TRW Occupant Restraint Systems GmbH & Co. KG
• Inventors: Lutz, Joachim, Mohr, Robert
• Application Number:
  US10/122,612
• Publication Number:
  US 20020149185A1
• Time in Patent Office: Days
• US Class Current: 280/740
• 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 21/2346 Soft diffusers
• CPC Class Codes: B60R 21/261 with means other than bag structure to diffuse or guide inflation fluid

Abstract

An airbag module for a vehicle occupant restraint system comprises a gas generator, an airbag which can be inflated by means of a pressurized gas flow that can be supplied by the gas generator. The airbag module further comprises a housing that has a generator chamber to accommodate the gas generator and an airbag chamber to accommodate the airbag. A deformable dividing wall is provided between the generator chamber and the airbag chamber, the dividing wall having outlet openings and being adapted to be deformed by the pressurized gas flow from a resting state into a working state in which the dividing wall forms a guide channel for the pressurized gas flow flowing out of the gas generator.

Claims

1. An airbag module for a vehicle occupant restraint system, said airbag module comprising a gas generator, an airbag which can be inflated by means of a pressurized gas flow that can be supplied by said gas generator, and a housing that has a generator chamber to accommodate said gas generator and an airbag chamber to accommodate said airbag, a deformable dividing wall being provided between said generator chamber and said airbag chamber, said dividing wall having outlet openings and being adapted to be deformed by said pressurized gas flow from a resting state into a working state in which said dividing wall forms a guide channel for said pressurized gas flow flowing out of said gas generator.

2. The airbag module according to claim 1, wherein a deformable diffuser plate is provided that functions as said dividing wall.

3. The airbag module according to claim 1, wherein said dividing wall surrounds said gas generator.

4. The airbag module according to claim 1, wherein a cover is provided that closes said housing towards outside and has an opening line, and wherein said guide channel directs said pressurized gas flow toward said opening line.

5. The airbag module according to claim 4, wherein there is arranged only one fabric layer of said airbag between said dividing wall and said cover.

6. A vehicle structure comprising a windshield, a dashboard and an airbag module comprising a gas generator, an airbag that can be inflated by means of a pressurized gas flow that can be supplied by said gas generator, and a housing that has a generator chamber to accommodate said gas generator and an airbag chamber to accommodate said airbag, a deformable dividing wall being provided between said generator chamber and said airbag chamber, said dividing wall having outlet openings and being adapted to be deformed by said pressurized gas flow from a resting state into a working state in which said dividing wall forms a guide channel for said pressurized gas flow flowing out of said gas generator, said airbag module being installed in said dashboard, and said guide channel directing said gas flow away from said windshield.