| 摘要 |
PROBLEM TO BE SOLVED: To elongate a holding time of the pressure and the tension of an air bag capable of protecting the head of occupant without increasing output of an inflator. SOLUTION: An air bag 16 has an A pillar side inflator supply expansion portion 36 expanded by an A pillar side inflator 14 and a C pillar side inflator supply expansion portion 38 expanded by a C pillar side inflator 15. The expansion portion 36 has a front pillar 20, an introduction passage 36A expanding along a roof side rail 28 and a quarter pillar 30, and a first expansion room 36B, a second expansion room 36C, and a third expansion room 36D which extend from the introduction passage 36A. The expansion portion 38 has an introduction passage 38A expanding along a belt line 40, and a first expansion room 38B, a second expansion room 38C, a third expansion room 38D and a fourth expansion room 38E which extend from the introduction passage 38A. |
