Gas bag module for a vehicle occupant restraint device
First Claim
1. A gas bag module for a vehicle occupant restraint device, said gas bag module having a gas generator (12) for inflating a gas bag (14) and at least one device for creating a discharge opening in said gas bag module (10), through which gas produced by said gas generator (12) can be discharged from said module (10), said device for creating said discharge opening comprising at least one conductive circuit (26, 26′
- ), which at least in part contacts a wall of said module (10), in which said discharge opening is to be produced, said conductive circuit (26, 26′
) including at least two different conductive materials, and at least one contact point (32) of two conductive materials being arranged such that, after an ignition of said gas generator (12), it is exposed to a different temperature than a rest of the contact points (34), so as to generate a current in said conductive circuit (26, 26′
), which results in a heating of said conductive circuit (26, 26′
) and a weakening of said wall along said conductive circuit (26, 26′
).
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Accused Products
Abstract
A gas bag module for a vehicle occupant restraint device has a gas generator for inflating a gas bag and at least one device for creating a discharge opening in the gas bag module, through which gas produced by the gas generator can be discharged from the module. The device for creating the discharge opening has at least one conductive circuit, which at least in part contacts a wall of the module, in which the discharge opening is to be produced. The conductive circuit includes at least two different conductive materials, and at least one contact point of two conductive materials is arranged such that, after an ignition of the gas generator, it is exposed to a different temperature than a rest of the contact points, so as to generate a current in the conductive circuit, which results in a heating of the conductive circuit and a weakening of the wall along the conductive circuit.
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Citations
12 Claims
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1. A gas bag module for a vehicle occupant restraint device, said gas bag module having a gas generator (12) for inflating a gas bag (14) and
at least one device for creating a discharge opening in said gas bag module (10), through which gas produced by said gas generator (12) can be discharged from said module (10), said device for creating said discharge opening comprising at least one conductive circuit (26, 26′ - ), which at least in part contacts a wall of said module (10), in which said discharge opening is to be produced,
said conductive circuit (26, 26′
) including at least two different conductive materials, and at least one contact point (32) of two conductive materials being arranged such that, after an ignition of said gas generator (12), it is exposed to a different temperature than a rest of the contact points (34), so as to generate a current in said conductive circuit (26, 26′
), which results in a heating of said conductive circuit (26, 26′
) and a weakening of said wall along said conductive circuit (26, 26′
). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- ), which at least in part contacts a wall of said module (10), in which said discharge opening is to be produced,
Specification
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- Resources
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Current AssigneeTRW Automotive Safety Systems GmbH (Zeppelin - Stiftung der Stadt Friedrichshafen)
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Original AssigneeTRW Automotive Safety Systems GmbH (Zeppelin - Stiftung der Stadt Friedrichshafen)
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InventorsBritz, Thomas
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Application NumberUS11/394,870Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current280/739CPC Class CodesB60R 2021/01231 control of expansion timing...B60R 21/239 characterised by their vent...
