Gas bag

US6773027B2 · kind B2 · utility

Assignee

• TRW AUTOMOTIVE SAFETY SYSTEMS GMBH · DE

Inventors

• Stefan Bohn · Goldbach, DE
• Joachim Fellhauer · Aschaffenburg, DE

Key dates

• Filing date: Jun 9, 2003
• Grant date: Aug 10, 2004
• Expiry date: Jun 9, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R21/239
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A gas bag for a vehicle occupant restraint system has a covering forming a main chamber of the gas bag, with a passage opening, and an inner bag with an inflow opening and at least one ventilation opening. An edge of the inflow opening of the inner bag is connected with an edge of the passage opening and the gas bag has in a region of the connection of covering and inner bag a constriction for the inner bag. In a folded state of the gas bag, the inner bag is turned in into an interior of the covering and is able to emerge from the covering through the passage opening during an inflation of the gas bag.