| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To effectively prevent a welded rib from being broken when an air bag body is expanded by welding a welding part to enhance the strength. <P>SOLUTION: This welded part structure of a vehicular air bag device comprises an air bag lid 5 divided by a fragile line 3 on a resin instrument panel 2, and a reinforcement door 8 abutting on the back side of the air bag lid 5. The air bag lid 5 and the reinforcement door 8 are attached by depositing a deposition rib 15 projecting from the back side of the air bag lid 5 through a hole 16 formed on the reinforcement door 8. An end 41a of a welded part 41 formed by the welding is positioned to the inner side than a corresponding end 15c of a welded rib 15 before welding. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
