| 摘要 |
PROBLEM TO BE SOLVED: To provide a welding structure capable of improving reliability of heat welding, and elongating a lifetime.SOLUTION: A clearance between a boss part 3a and a hole part 2a is enlarged on the root side of the boss part 3a linked to a design component 3 furthermore than the tip side of the boss part 3a.SELECTED DRAWING: Figure 10 |
