| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a joint part structure for a vehicle body frame, capable of reliably joining a closed section member having no flange part at the terminal, to another closed section structure member. Ž<P>SOLUTION: A cutout portion 26 of a sidewall 19' is provided at the terminal of a bulkhead upper frame 3. Another portion than the cutout portion 26 is an extending piece E consisting of an upper wall 17, a sidewall 19 and a lower wall 18. A spot welding gun is inserted through an opening portion including the cutout portion 26 and a sectionally U-shaped wheel house upper member 12a' as part of a wheel house upper member part 12 is laid on the extending piece 26 for spot welding. A cover member f as part of the wheel house upper member part 12 is welded to the sidewall 19' of the bulkhead upper frame 3. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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