Patent ID: 6145875
Filing Date: 2000-11-14
Classification: B60R

Abstract:
An igniter for an air bag device comprising:first and second backup power circuits having first and second condensers, respectively, adapted to be charged by a battery provided in a vehicle, said first condenser having a capacity greater than that of the second condenser,a first ignition device formed of a first squib and a first ignition switch connected in series,a second ignition device formed of a second squib and a second ignition switch connected in series,a first connection member connecting the first ignition device to the first backup circuit,a second connection member connecting the second ignition device to the first and second backup circuits,an operating switch situated in the second connection member, andcontrol means connected to the first and second ignition switches and the operating switch for controlling the switches upon receiving an operation signal from a vehicle, said control means, upon receiving the operation signal, actuating firstly the first ignition switch to actuate the first squib by the first condenser of the first backup circuit and after a predetermined time, actuating secondly the second ignition switch and the operating switch to actuate the second squib by the first and second condensers of the first and second backup circuits.