Patent ID: 8708368

Claim:
A gas generator comprising, a housing including a diffuser shell provided with a gas discharge port, and a closure shell, an ignition device including an igniter and a gas generating agent accommodated inside the housing, the diffuser shell being in a substantially cup-like shape and having an annular bent portion obtained by bending a circumferential wall portion at an opening inwardly, the closure shell being in a substantially annular shape having a annular plate portion, the annular plate portion having a annular curved portion projecting toward an inside of the housing, the ignition device being fixed to a central hole in the annular plate portion with a resin, an inner circumferential part of the annular plate portion in the closure shell abutting against the resin, and an outer circumferential part of the annular plate portion abutting against and being fixed to the annular bent portion of the diffuser shell.