Airbag for an occupant restraint system

US6634670B1 · kind B1 · utility

Assignee

• TRW Occupant Restraint Systems GmbH & Co. KG · DE

Inventors

• Norbert Ellerbrok · Alfdorf, DE
• Alexander Heilig · Schwäbisch Gmünd, DE

Key dates

• Filing date: Aug 28, 2000
• Grant date: Oct 21, 2003
• Expiry date: Aug 28, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R21/2342
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a vehicle occupant restraint system there is provided a gas bag having a wall (12) which has portions distributed across its surface area which, with increasing gas bag internal pressure, increase the volume of said gas bag (10) by a deployment or smoothing action. If the internal pressure in the gas bag rises due to increased power output of the gas generator or in case of high temperatures, a limitation of the increase in pressure is achieved by the increase in volume of the gas bag.