| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a corrugated cardboard tray that can be manufactured with a small quantity of material and that is excellent in strength. <P>SOLUTION: In the corrugated cardboard tray provided with a bottom plate 1 around which a pair of side face plates 2 and end face plates 3 are continuously provided, with the side plates 2 and the end face plates 3 being locked so as to keep a form, the tip end parts of folding pieces 4 extending from both ends of the side plate 2 are wrap-wound by inner end plates 6 extending from the central parts of the end face plate 3 through the medium of top plates 5, while corner plates 7 extending from both ends of the inner end plates 6 are folded diagonally toward the side face plates 2 and attached plates 8 extending from the tip ends of the corner plates 7 are slid along the inner faces of the side face plates 2 and their tip ends are fixed with the bottom plate 1. Only a part of the shorter face side is overlapped for form-keeping while the corner parts are reinforced with corner plates 7. <P>COPYRIGHT: (C)2004,JPO |
