| 摘要 |
PROBLEM TO BE SOLVED: To provide an air bag device which can be reliably fastened by a rivet and whose assembling work can be efficiently performed even if a blind rivet is driven from the side wall part side by arranging a cover side wall part on the outside surface side of an outer wall part in a back holder installing wall part. SOLUTION: A side wall part 19 of a cover 17 is arranged on the outside surface side of an outer wall part 30 in an installing wall part 27 of a back holder 21, and the cover 17 is installed on the back holder 21 by using a blind rivet 32 fastened by penetrating through installing holes 19b and 30a of the side wall part 19 and the outer wall part 30 from the side wall part 19 side. A regulating rib 27a to prevent the approach of the outer wall part 30 to an inner wall part 28 is formed in the outer wall part 30 in the installing wall part 27 of the back holder 21. |
