| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a manufacturing method for an interior member for an on-vehicle air bag device easy for manufacturing by ensuring rigidity required for the interior member and easiness of door part opening at the time of air bag expansion. SOLUTION: An interior member for an on-vehicle air bag device has a body 21 and a lid part 22 surrounded by the body 21 and formed to be continuous thereto for covering the folded air bag of the device. Also, the lid part 22 has a door part 23 for closing the folded air bag, a thin tear scheduled part 24 formed by recessing the surrounding reverse side of the door part 23 and to be torn at the time of air bag expansion, and a hinge part for connecting the door part 23 and the body 21 and acting as the rotational center of the door part 23 upon the tear of the tear scheduled part 24. In manufacturing, the body 21 is formed by injection molding a hard synthetic resin and then the lid part 22 is formed by injection molding thermoplastic elastomer having compatibility with the hard synthetic resin of the body 21.</p> |
