Gas bag module
First Claim
1. A gas bag module for a vehicle occupant restraint device comprising a gas bag (12) and a discharge arrangement (18) in fluid connection with the gas bag,the discharge arrangement (18) including a discharge opening through which gas can escape from the gas bag (12),the discharge arrangement (18) having at least one element made of an electrically activatable polymer actuator (22), to expose and/or alter the discharge opening,the polymer actuator (22) being integrated into a wall part with the discharge opening,the polymer actuator (22) comprising a carrier layer and an active layer made of a polymer, andthe polymer changing its volume with a variation in voltage and being selected from the group of electrostrictive polymers, polymer gels, carbon nano-capillaries, conductive conjugate polymers and ion-conducting polymers.
1 Assignment
0 Petitions
Accused Products
Abstract
A gas bag module for a vehicle occupant restraint device comprises a gas bag and a discharge arrangement in fluid connection with said gas bag. The discharge arrangement has a discharge opening, through which gas can escape from the gas bag, and at least one element made of an electrically activatable polymer actuator to expose and/or alter the discharge opening upon activation of said polymer actuator.
14 Citations
6 Claims
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1. A gas bag module for a vehicle occupant restraint device comprising a gas bag (12) and a discharge arrangement (18) in fluid connection with the gas bag,
the discharge arrangement (18) including a discharge opening through which gas can escape from the gas bag (12), the discharge arrangement (18) having at least one element made of an electrically activatable polymer actuator (22), to expose and/or alter the discharge opening, the polymer actuator (22) being integrated into a wall part with the discharge opening, the polymer actuator (22) comprising a carrier layer and an active layer made of a polymer, and the polymer changing its volume with a variation in voltage and being selected from the group of electrostrictive polymers, polymer gels, carbon nano-capillaries, conductive conjugate polymers and ion-conducting polymers.
Specification