Patent ID: 6679521
Filing Date: 2004-01-20
Classification: B60R

Abstract:
A gas generator for an air bag, comprising:a housing having a top plate, a bottom plate, and a circumferential outer wall connecting the top plate and the bottom plate; a tubular member provided within said housing, said tubular member storing ignition means therein and being fixed to the bottom plate; coolant means, provided within said housing and outside the tubular member, for cooling combustion gas generated by gas generating means provided inside said housing; and a contact preventing member, provided in a first space defined by an upper end surface of said coolant means and an inner surface of said top plate opposing the upper end surface, for preventing the upper end surface of said coolant means from making direct contact with the top plate to restrict heat conduction from said coolant means to the top plate after activation of the gas generator, said contact preventing member having a circular portion provided with a bent portion that engages with an outer peripheral surface of the tubular member.