| 摘要 |
PROBLEM TO BE SOLVED: To provide a disc wheel for an automobile capable of reducing the weight of its rim and securing sufficient strength of a joint welded part. SOLUTION: The joint welded part x of the rim 1 whereto the peripheral edge of a disc 10 is joined, is configured with a double thick end part 8 formed by folding back a rim material inward from the tab edge, and the peripheral edge of the disc 10 is welded to the double thick end part 8, and therefore, the joint welded part is secured with a sufficient rigidity even if a concentrated stress is applied from the road surface, and also the weight can be reduced to a great extent.
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