| 摘要 |
PROBLEM TO BE SOLVED: To prevent the dropping of a filler block (collapse preventive member) installed to the side face opening part of a main frame, in a vehicle composing a chassis frame by laminating the main frame, a spacer, and a subframe, and fastening them integrally by a fastening bolt. SOLUTION: A filler block 6 is installed to the side face opening part 11 of a main frame 1, and the main frame 1, a spacer 3, and a subframe 4 are fastened by a U-bolt 8 by fitting a stopper 7 fixed to the above filler block 6 to the edge part of the main frame 1. When the filler block 6 fluctuates owing to the looseness of the fastening bolt 8, its fluctuation fulcrum is made as the outer end edge 72e (or 72e) of the stopper 7, and before the filler block 6 fluctuates to the position to drop, the filler-block 6 interferes with the U-bolt 8, so as to limit the fluctuation.
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