Patent ID: 7059632
Filing Date: 2006-06-13
Classification: B60R

Abstract:
1. A gas generator for an air bag, comprising: a housing having a gas discharging port; ignition means to be activated upon an impact; and a molded article of a gas generating agent to be ignited and burnt by the ignition means for generating a combustion gas, wherein at least one of three requirements selected from the following (a), (b) and (c) are met such that a time, between a peak of an inner pressure generated in the gas generator and subsequent lowering of the inner pressure to one-fourth its peak value, is not less than 45 milliseconds when the gas generator is activated at room temperature: (a) an internal volume of a gas generator is 200 to 400 cm (b) a ratio (L/D) of an axial length (L) of the gas generator to a diameter (D) of the gas generator is 0.6 to 1.5; and (c) an amount of gas generated by combustion of the molded article of a gas generating agent is 1.5 to 4.5 mol.