| 摘要 |
PROBLEM TO BE SOLVED: To provide a tray made of a corrugated cardboard the processing of which at the time of manufacturing, and the assembly at the time of service are easy. SOLUTION: A pair of side walls 2 and a pair of end walls 3 are respectively installed around a bottom wall 1. The side wall 2 is constituted of an external side plate 4, a top plate 5, and an internal side plate 6 which are connected from the bottom wall 1 side in order. An inner folding piece 7 which is extended from the side end of the external side plate 4, and a folding-back piece 8 which is extended from the side end of the end wall 3 are connected through a corner folding line 9 in a diagonal direction. The inner folding piece 7 is pasted on the back surface of the external side plate 4. The inner folding piece 7 and the folding-back piece 8 are overlapped while folding into a valley shape along the corner folding line 9, and are inserted in a space between the external side plate 4 and the internal side plate 6. Insertion pieces 11 being projected from both sides of a lateral plate 10 which extends from the upper end of the end wall 3 are inserted in an insertion hole 12 which is installed on the top plate 5 of the side wall 2 to retain the shape of this tray made of the corrugated cardboard. In the tray made of the corrugated cardboard, the inner folding piece 7 is extended, and the folding-back piece 8 is formed by a cutting into the proximal section of the inner folding piece 7, and the inner folding piece 7 is pasted to the back surface of the external side plate 4. COPYRIGHT: (C)2008,JPO&INPIT
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