Gas bag restraint system for vehicle occupants

US6196575A · kind A · utility

Assignee

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

Inventors

• Norbert Ellerbrok · Alfdorf, DE
• Norbert Lang · Blieskastel, DE

Key dates

• Filing date: Jul 23, 1998
• Grant date: Mar 6, 2001
• Expiry date: Jul 23, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2021/2633
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A gas bag restraint system for vehicle occupants, comprises a gas bag with an interior having a first and a second chamber. The gas bag has an outer wall delimiting the interior of the gas bag and at least one dividing wall in the interior for separating the first and the second chambers in a fully inflated state of the gas bag. The dividing wall is gas-permeable at least during fully inflating of the gas bag to reach a fully inflated state of the gas bag. The system further comprises a multiple-stage gas generator which is communicated with the first chamber and which is able to produce different internal pressures of the gas bag.