| 摘要 |
PROBLEM TO BE SOLVED: To provide a side air bag capable of sufficiently and rapidly expanding even if a generating gas pressure of an inflator is low. SOLUTION: A side air bag 1 has a main part 4 which is long in a vertical direction, and an auxiliary 5 extending from an upper part of the main part 4 toward the rear. On a lower part of the main part 4, an insertion port 6 for an inflator is provided. The main part 4 wherein the auxiliary 5 is tucked in the upper part thereof and the tucked-in the auxiliary 5 are sutured each other by a tear seam 7. At a generally middle part of the main part 4 in a height direction, a gas guide part 8 is formed by suturing panels 2, 3 with a suturing thread. When the inflator is actuated, the tear seam 7 splits after the whole of the main part 4 sufficiently expands, and then the auxiliary 5 expands from the upper part of the main part 4 toward the rear. |
