| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a packaging box by eliminating a drum-like bulge of a body formed of vertical plates of the packaging box used for packaging of a product such as a bottled beverage or a canned beverage. <P>SOLUTION: In the packaging box, buckling guide frame lines which are creased lines forming substantially a rectangle or square shape using a straight or curved line are formed in the pair of vertical plates at positions apart nearly at the same intervals inside from and along the outer peripheral edges of the vertical plates. Auxiliary guide lines guiding an area between the outer peripheral edge of the vertical plate and the buckling guide frame line in a direction expanding outward are arranged between the corner parts of the buckling guide frame lines and the corners of the vertical plates. Cut starting parts for opening the packaging box are arranged in long holes each formed by a pair of outer flap pieces which close upper and lower portions, by using inner flap pieces. <P>COPYRIGHT: (C)2012,JPO&INPIT |
