| 摘要 |
PROBLEM TO BE SOLVED: To provide an air bag for a side air bag device capable of maintaining a high internal pressure for a long time. SOLUTION: An air bag 41 is stored to be folded over a pillar part PF and a roof side rail part R in a peripheral edge of an opening W in an in-car side, and inflation expanded so as to cover the opening W when inflating gas flows in. The air bag 41 is constituted in a manner wherein an internal pressure value after 3 sec from an inflow start maintains 30% or more an internal pressure value after 500 msec from an inflow start as the internal pressure from the inflow start of inflating gas. |
