| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging box capable of stacking up a number of semifinished products, by assembling the packaging box having a frame-like sidewall part preliminarily into the semifinished product, and capable of assembling easily thereby a complete product in packaging work.SOLUTION: First inner side plates 4a, 4b and top plates 6a, 6b for the first side plate, of a blank plate in a packaging box 100, are folded onto the first outer side plates 2a, 2b adjacent thereto, flaps 9a-9b are folded onto one part of folding-in plates 8a-8b, folded states are held to fix a layered piece for the first side plate is fixed to a main plate, the first side plates 21a, 21b are formed thereby, the first side plates 21a, 21b are folded onto the main plate 1, the flaps 9a-9d and the folding-in plates 8a-8d are folded onto second outer side plates 3a, 3b, and a portion between the 8-th folding line L8 and a sub-folding line 15, out of a non-layered area 61 in the folding-in plates 8a-8d, is fixed to the second outer side plates 3a, 3b as fixed areas R1-R4. |
