| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a packaging box which can efficiently suppress body bulge and buckling. <P>SOLUTION: The packaging box 20 is formed in a rectangular solid box, which has a pair of length surfaces 11, 12, a pair of width surfaces, a bottom surface 15, and a top surface 16, by folding a blank 20 along fold lines 21a-21g. A plurality of complex fold line parts 211, in which two fold lines 211a, 211b are formed parallel to both sides of fold lines 21d, 21e of upper end edges of the respective length surfaces, are formed at a predetermined spacing along the fold lines 21d, 21e. A plurality of complex fold line parts 212, in which two fold lines 212a, 212b are formed parallel to both sides of fold lines 21f, 21g of lower end edges of the respective length surfaces, are formed at a predetermined spacing along the fold lines 21f, 21g. The complex fold line parts of the fold lines of the upper end edges of the respective length surfaces and the complex fold line parts of the fold lines of the lower end edges of the length surfaces are alternately arranged along a length direction of the length surfaces. <P>COPYRIGHT: (C)2012,JPO&INPIT |
