Patent ID: 8777258

Claim:
A gas generator for a restraining apparatus, comprising: a housing having a gas discharge port and formed by a closure shell and a diffuser shell; an ignition device, which includes an igniter, and a gas generating agent being accommodated in the housing; and a cup-shaped container having a flame-transferring hole in a circumferential wall portion thereof and being disposed on the closure shell inside the housing to form an ignition device chamber, the ignition device chamber accommodating the ignition device, and the igniter being fixed to a tubular igniter-fixing portion provided in the closure shell, the cup-shaped container having a plurality of protruding portions protruding inward in a radial direction from the circumferential wall portion thereof, the tubular igniter-fixing portion having a recess on an outer surface, at least a distal end portion of each of the plurality of protruding portions of the cup-shaped container abutting on an inner wall surface of the recess of the tubular igniter-fixing portion to block an axial movement of the cup-shaped container.