To provide a packaging box which can be reduced and resealed in response to the reduction of contents.
According to the packaging box, on one flat board 1 composing a peripheral wall, a cut line 6 along the ridge with a side board 2, a cut line 7 parallel with the cut line 6, and cut lines 8, 9 along the ridge with a pair of end boards 5 are made to form a cutout portion 10. Also on the one board 1, cut lines 11, 12 along the ridge with end strips 4 and with other end boards 5 are made from both sides of the side board 2 next to the cutout portion 10 to both sides of the other flat board 1. On the other flat board 1, a folding line 13 is extended between the ends of the cut lines 12 at both sides of the folding line 13 to form a reclosing lid portion 14. On the end boards 5, folding lines 15, which correspond to the width of the cutout portion 10 and of the reclosing lid portion 14, respectively, are formed to form end strips 16, respectively. By cutting the side board 2 next to the cutout portion 10 and the cut lines 11, 12 at both sides of the other board 1, folding inward the end strips 16 of the end boards 5, closing the reclosing lid portion 14 of the other board 1, and inserting the other side board 2 connected to the front end of the reclosing lid portion 14 into the box, the box is resealed in a reduced state.
Higashio Masahiro
Torii Kazuhisa