| 摘要 |
PROBLEM TO BE SOLVED: To provide a bellows frame easily assembled and using the component parts in common and a structure using the bellows frame. SOLUTION: A set of unit cross elements 1 is formed of two bar bodies 11, 11 rotatably crossing each other. The bellows frame comprises a cross frame 2 formed by connecting the unit cross elements 1 to each other and spacers 3. The spacer 3 is at least a part of the cross frame 2. The ends 11b of the bar bodies 11 of the set of unit cross elements 1 are so formed separately as to be opposed to each other in the approaching and departing directions. Since the spacers 3, 3 in the relation opposed to each other are mutually supported, the positional relation of the bar bodies 11 of the cross frame 2 is determined. The three-dimensional structure of the bellows frame is formed by combining the cross frame 2 with the spacers 3. COPYRIGHT: (C)2008,JPO&INPIT
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