Air bag inflator having circumferentially disposed auto ignition material

摘要

An inflator of an air bag device includes a cylindrical vessel having gas releasing openings disposed at the circumferential surface thereof, a gas generating agent disposed in the vessel, a boosting agent for starting a gas generating reaction of the gas generating agent, and an igniting agent having an ignition point lower than that of the boosting agent. The igniting agent is disposed over almost the entire inner surface of the vessel.