Airbag module

US6799774B2 · kind B2 · utility

Assignee

• TRW AUTOMOTIVE SAFETY SYSTEMS GMBH · DE

Inventors

• Udo Bieber · Niedernberg, DE
• Matthias Helmstetter · Aschaffenburg, DE
• Ralph Neupert · Aschaffenburg, DE

Key dates

• Filing date: Apr 12, 2002
• Grant date: Oct 5, 2004
• Expiry date: Jul 15, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R21/217
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An airbag module for occupant restraint systems in vehicles has a pot-like housing part (10) made of sheet metal to the base (14) of which a gas generator is attached and to the circumferential wall (16) of which, extending upwards from the base (14), an airbag (26) and a covering cap (12) made of plastic are attached. The covering cap (12) has a supporting wall (17) that is in contact with the outside of the circumferential wall (16) of the housing part (10). The supporting wall (17) is provided with cutouts (20). On the free edge of the circumferential wall (16) of the housing part (10) facing away from the base (14), there are arranged hook-shaped metal tabs (18) which pass through the cutouts (20) of the supporting wall (17) of the covering cap (12) and which are bent on their outside in the direction toward the base (14) of the housing part (10). The free edge of the supporting wall (17) of the covering cap (12) facing the base (14) of the housing part (10) is held in contact with the circumferential wall (16) of the housing part (10) by means of bending tabs (22) that have been punched out of the housing part (10) and bent against the outside of the supporting wall (17).