INFLATOR FOR AN AIRBAG, AN AIRBAG MODULE AND A VEHICLE COMPRISING SUCH AN AIRBAG MODULE

摘要

A vehicle air-bag inflator includes a container initially containing a pressurised gas and having a vent opening in a wall thereof. A rupturable element, attached to a container wall, covers the vent opening, sealing the interior of the container. The rupturable element is attached to a first support, which supports a region of the rupturable element and prevents the rupturable element from rupturing. A first support, attached to a container wall, is movable between a first and a second configuration, with respect to the container wall. In an initial configuration, a second support supports the first support and prevents the first support from moving from a first configuration to a second configuration. In a final configuration, a second support allows the first support to move from the first configuration to the second configuration. An activation mechanism moves the second support from an initial configuration to a final configuration when triggered.

主权项

1. An inflator for a vehicle air-bag, the inflator comprising:
a container initially containing a pressurised gas, the container having a vent opening formed in a wall thereof; a rupturable element which covers the vent opening, substantially sealing the interior of the container, the rupturable element attached to the wall of the container; a first support which is attached to the wall of the container and movable with respect to the wall of the container between a first configuration, in which the first support supports a region of the rupturable element and prevents the rupturable element from rupturing, and a second configuration, the rupturable element being attached to the first support; a second support which, in an initial configuration, supports the first support and prevents the first support from moving from the first configuration to the second configuration, and which, in a final configuration, allows the first support to move from the first configuration to the second configuration; and an activation mechanism operative to move the second support from the initial configuration to the final configuration when triggered.