EXPANSION ASSEMBLY FOR ADJUSTABLE PROFILE AIR BAG

PROBLEM TO BE SOLVED: To provide an expansion assembly for an adjustable profile air bag whereby it is possible to control a better releasing mechanism of a tying strap for generating a final expansion profile of the air bag. SOLUTION: The air bag assembly 18 has an efficient constitution and an effect such as to hold restraint air bag tying elements 30, 30' and 30" in s shortened working length while a first set is under specified conditions and to elongate the tying elements while a second set is under the specified conditions. The extension of the elements is performed interlocking with the distribution of expansion gas having an increased volume to an air bag cushion 20. The air bag assembly is actuated by two or more or less of actuator devices 69 and 81 for actuating an inflation step in a two-stage inflator 40, and at the same time, the distribution of the expansion gas having an appropriate volume for the desired cushion profile is generated, so that it is possible to control properly lengths of the elements. COPYRIGHT: (C)2004,JPO&NCIPI