Gas bag module for a vehicle occupant restraint device

• US 20060028008A1
• Filed: 07/28/2005
• Published: 02/09/2006
• Est. Priority Date: 08/05/2004
• Status: Active Grant

• 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: Schneider, Michael, Magoley, Marcus
• Granted Patent: US 7,559,574 B2
• Time in Patent Office: Days
• US Class Current: 280/736
• CPC Class Codes: B60R 21/26 characterised by the inflation fluid source or means to control inflation fluid flow arrangement or mounting thereof to the vehicle B60R21/20; blasting cartridges for producing gas under pressure in general F42B3/04; initiators or igniters therefor F42B3/10
• CPC Class Codes: B60R 21/261 with means other than bag structure to diffuse or guide inflation fluid
• CPC Class Codes: B60R 21/276 with means to vent the inflation fluid source, e.g. in case of overpressure B60R21/30 takes precedence; venting means on inflatable member walls B60R21/239

Abstract

A gas bag module (10) for a vehicle occupant restraint device includes a gas generator (14) for filling a gas bag (16), and a gas conduit device arranged inside the module. The gas conduit device forces a predetermined, uniform flow direction at least on a portion of the gas emerging from the gas generator (14).

Claims

1. A gas bag module for a vehicle occupant restraint device, the gas bag module comprising a gas generator for filling a gas bag, and a gas conduit device arranged inside the module, which forces a predetermined, uniform flow direction at least on a portion of the gas emerging from the gas generator.

2. The gas bag module according to claim 1, wherein the gas bag module has a discharge opening which is able to be freed to enable gas to flow off out from the gas bag module, the gas conduit device being designed so that it directs at least a portion of the gas, which has emerged from the gas generator, to the discharge opening.

3. The gas bag module according to claim 1, wherein the gas conduit device is designed for a laminar flow of the gas.

4. The gas bag module according to claim 1, wherein the gas conduit device comprises at least one baffle plate.

5. The gas bag module according to claim 1, wherein the gas conduit device is formed at least partially by suitable shaping of a gas bag holding plate of the gas bag module.

6. The gas bag module according to claim 1, wherein the gas conduit device is formed at least partially by suitable shaping of outlet channels of the gas generator.