| 摘要 |
PROBLEM TO BE SOLVED: To provide a cross member unit to allow the use of cross members having the same length even if the set width is changed. SOLUTION: In the case of a short set width, four gusset fastening holes 44a (46a) are positioned mating with four cross member fastening holes 54a (56a) and a rivet 40a can be inserted into these holes 54a (56a) and 44a (46a), but other four cross member fastening holes 54b (56b) are dislocated from four gusset fastening holes 44b (46b). In the case of a long set width, on the other hand, the four gusset fastening holes 44b (46b) are positioned mating with the four cross member fastening holes 54b (56b) and the rivet 40a can be inserted into these holes 54b (56b) and 44b (46b), but the four cross member fastening holes 54a (56a) are dislocated from the four gusset fastening holes 44a (46a). COPYRIGHT: (C)2004,JPO&NCIPI
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