| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging box surely holding a lid body at a lid cover position in an assembled state while improving assembly workability, and am expansion body for making the packaging box.SOLUTION: An expansion body 1 of a packaging box includes a peripheral plate 3, a bottom plate 4 and a cover plate 7. The cover plate 7 includes a pair of lid cover plates 71 and 73, and a pair of folding plates 72 and 74. In each of the lid cover plates, both ends (i) in a connection part k between each of handle plates and each of the lid cover plates are provided in the inside than boundary edges f, h, i and g between each of the lid cover plates and each of folding plates. The cover lid plate are each formed with a pair of oblique sides s and s having an almost equal angle and inclining upward from both ends (ii) of second and fourth boundary parts, and are ridge-folded with a fold of each of the oblique sides. |
