Patent ID: 7614875

Claim:
A gas generator, comprising: a housing having a gas discharge port; a combustion chamber accommodating a gas generating agent therein; a cylindrical filter disposed between the gas discharge port and the combustion chamber; an ignition device for igniting and combusting the gas generating agent, the ignition device having an igniter assembly that includes, an electric igniter, a metal member provided independently from the housing, and a resin portion that encloses the igniter and attaches the electric igniter to the metal member; the resin portion defining a holder accommodation space and placed on an inner surface of a bottom portion of the housing, such that the holder accommodation space is disposed over an opening formed in the bottom portion of the housing, an inner wall surface of the holder accommodation space having at least one of a concave portion and a convex portion; and the bottom portion; and a holder having at least one of a convex portion that engages the concave portion of the resin portion and a concave portion that engages the convex portion of the resin portion when the holder is inserted through the opening and into the holder accommodation space, such that the holder fixes the igniter assembly to the bottom portion of the housing without welding to the bottom portion of the housing.