Air bag device and method for folding an air bag

摘要

Gas generated from an inflator flows into a first portion of a main bag and each part of an inner bag, and the first portion is inflated toward an area in front of passenger's seat. Then, the gas filling the first portion which has been inflated flows into a second portion of the main bag. In this situation, the inflation direction of the second portion is more downward than the inflation direction of the first portion. As a result, a speed of backward inflation is decreased.