Device for filling a restraint device

US6042146A · kind A · utility

Assignee

• TRW Airbag Systems GmbH & Co. KG · DE

Inventors

• Hermann Bauer · Wolnzach, DE
• Richard Bender · Achern, DE
• Uwe Dolling · Heldenstein, DE
• Thomas Kistler · Palo Alto, US
• Siegfried Zeuner · Hersbruck, DE

Key dates

• Filing date: Feb 27, 1998
• Grant date: Mar 28, 2000
• Expiry date: Feb 27, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R21/272
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a device for filling a restraint device, in particular an impact cushion (airbag) for the protection of the occupants of a motor vehicle, with the following features. The restraint device is filled by an inert gas or gas mixture stored in a pressure container; the pressure container has an outlet opening which is closed by a burstable membrane; a module for opening the membrane is associated with the outlet opening; the module has an ignition unit; the igniter case is surrounded by a toroidal propellant chamber; for the ignition of the propellant stored in the propellant chamber, the igniter case has, in addition to axial nozzles, further nozzles directed radially outwards and finally a flow control is provided which directs the hot gas, produced by the propellant, onto the membrane.