| 摘要 |
PROBLEM TO BE SOLVED: To provide a packing box which does not engage with each other and is not misaligned when stacking vertically, is easily held with fingers when picking up an upper box stacked and hardly crushes.SOLUTION: Top inner lids 5, 5 closing a top edge opening and the top outer lids 6, 6 holding down the left and right side boards of the top inner lids when assembling are provided consecutively on the front and rear side boards of a cylindrical box body comprising the facing front and rear side boards 1, 2 and the facing left and right side boards 3, 4, and on the upper ends of the left and right side boards, respectively. The top outer lids form the engaging protrusions by protruding only the mount equivalent to thickness upward from the upper face of the top inner lids when assembling. Besides, the bottom inner lids 7, 7 and the bottom outer lids 8, 8 are provided consecutively on the lower ends of the left and right side boards and of the front and rear side boards, respectively. The left and right side parts of the bottom outer lids are cut so as to correspond to the planar shape of the top outer lids, and the cut-off parts 9, 9 form the engaging recesses. The notches 10 are provided to the top inner lids so that the root sides of the top outer lids do not contact when assembling and a top end side protrudes upward.SELECTED DRAWING: Figure 1 |
