| 摘要 |
PURPOSE: To eliminate risk that the part to be ruptured bears degradated appearance such as cracking originating from deterioration or contraction of the skin and generate a certain rupture when air bag is inflated. CONSTITUTION: A cabin side member 10 is equipped in a single piece with a skin 12 where a rupturable part 14 bounding an air back door part D is formed on the oversurface of a synthetic resin foaming layer 11, wherein a thin part 13 is provided on the rear surface of the skin with a constant width along the rupturable part, and a sponge-form material 30 embedded in the synthetic resin foaming layer is provided in the thin part. |
