Patent ID: 7404574
Filing Date: 2008-07-29
Classification: B60R

Abstract:
1. A gas generator for an airbag, comprising: a cylindrical housing including at least one gas discharge port in its periphery and having a closed end portion; an inner cylindrical member in which an interior thereof defines a gas generating agent accommodating space including at least two combustion chambers; a filter for purifying the gas generated by the combustion of the gas generating agent; and ignition means for igniting and burning the gas generating agent accommodated in the accommodating space, wherein the inner cylindrical member comprises a first outside diameter portion and a second outside diameter portion having a larger outside diameter than that of the first outside diameter portion and adapted to be in contact with the inner peripheral surface of the housing, and a second end of the first diameter portion being in contact with the closed end portion of the housing, the filter is provided radially on an outside of the first outside diameter portion in the inner cylindrical, and the ignition means is provided on an open end portion of the housing opposite to the closed end portion.