| 摘要 |
PROBLEM TO BE SOLVED: To provide a connected structure of which connected parts are not easily damaged and excellent in durability even when the connected structure is repeatedly used by folding. SOLUTION: A connected structure S1 is connected by bridging a flexible connecting belt 5 on adjacent hollow structured plates 4, 4A made of synthetic resin and stitching them. The hollow structured plates 4, 4A are structured by placing plural ribs 42 between two flat plates facing each other 40, 41, 40A, 41A at specified intervals and creating hollow parts 43 between the ribs 42. Backing sheets 71, 71A are placed on the edges of the flat plates 41, 41A at the opposite side of the flat plates 40, 40A placed with the connecting belt 5. The backing sheets 71, 71A are stitched to the hollow structured plates 4, 4A together with the connecting belt 5. The stitching is made in a way that threads pierce the hollow parts 43, 43 of the hollow structured plates 4, 4A and proceed essentially to the same direction as the ribs 42 extend.
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