| 摘要 |
PROBLEM TO BE SOLVED: To fix a cover member, which closes a cut-out portion provided at a bent portion, to a door frame without using welding. SOLUTION: In the door frame 10 having a bent portion 10b formed by bending a long material 1 having a hollow body portion 2 and a flange portion 3 elongating from the hollow body portion 2, a cover 20 for closing the cut-out portion 11 formed by cutting out the flange portion 3 at the bent portion 10b is fixed to the door frame 10 via a nail portion 21. COPYRIGHT: (C)2006,JPO&NCIPI
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