| 摘要 |
PROBLEM TO BE SOLVED: To prevent an air bag from interfering with a bead on a seam of the air bag for side collision disposed in a seat when the air bag rupturecs the seam and inflates. SOLUTION: A seam portion 26 where a front portion cover member 23 covering the front surface of a backrest, a side portion covering member 24 covering the side surface of the backrest, and a bead 27 placed between the cover members 23, 24 are sewn together comprises; a main seam portion 261 where the covering members 23, 24, and the bead 27 are sewn together at a position near a bead core 271 , a temporary seam 262 where the cover member 23 and the bead 27 are sewn together at a position distant from the bead core 271 . When the air bag is inflated, the temporary seam 262 is ruptured, the bead 27 is separated from the side portion cover member 24, and moves with the front portion cover member 23. |
