| 摘要 |
PROBLEM TO BE SOLVED: To provide boxes which are easily and stably loaded when the boxes are to be stacked, which can be easily manufactured at a low cost. SOLUTION: Side walls of a box comprise outer side plates 11, 12, top side plates 21, 22, and inner side plates 31, 32, the bottom side is covered by bottom wall flaps to be continuously provided from a lower end of the outer side plates 11, 12, and projected parts 111, 121 are formed on an upper part of each corner of the side walls. Bending lines 322, 322 in the vertical direction are provided on each side part of the inner side plates 32, 32, tip parts forward of the bending lines 322, 322 are supporting pieces 323, 323, and the bending line 322 is trough- bent so that each supporting piece is directed toward the adjacent wall. |
