| 摘要 |
PROBLEM TO BE SOLVED: To provide a bottom-lock type packaging box which does not generate a gap caused by deformation of a bottom lid piece, and can be assembled by one touch. SOLUTION: A blank 10 is folded along a folding line (a) in the longitudinal direction, and a first end board tongue piece 111, a surface side board bottom piece 121, a second end board tongue piece 131 and a back face side board bottom piece 141 are respectively folded in. A fixed piece 112 of the first end board tongue piece is folded into a valley shape along a folding line (c) in the diagonal direction, and a fixed piece 132 of the second end board tongue piece is folded into a valley shape along the folding line (c) in the diagonal direction. The back face side board bottom piece and the fixed piece 132 of the second end board tongue piece are stuck together, and the surface side board bottom piece and the fixed piece 112 of the first end board tongue piece are stuck together. A paste margin 15 is stuck on a first end board and when the blank folded flatly is raised into a square cylinder-like shape by one touch, a projected part 123 of the surface side board bottom piece is inserted into a notch f provided on a folding line b in the lateral direction of dividing the back face side board 14 and the back face side board bottom piece, and the surface side board bottom piece is fixed on the bottom part of the packaging box. COPYRIGHT: (C)2006,JPO&NCIPI
|
