| 摘要 |
PROBLEM TO BE SOLVED: To provide a wheel for an automobile capable of exerting high durability in a constitution including a front flange portion made by being folded backward at an outer peripheral edge portion of a wheel disc. SOLUTION: The front flange portion 31 including an annular front peripheral portion 32 and an annular back peripheral portion 33 is formed at an outer peripheral edge portion of the wheel disc 3. A disc back surface portion 6 and an opening end portion 13a of a front bead seat portion 13 of a wheel rim 2 are welded to each other over the entire circumference of the wheel, but the annular back peripheral portion 33 and the wheel rim 2 are not welded to each other. Stress concentration therefore generated on the front flange portion 31 due to load generated while the automobile is running can be mitigated. The wheel 1 therefore has high durability against a load generated during the running of the automobile. COPYRIGHT: (C)2011,JPO&INPIT |
