| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a foldable paper container which can be recycled and repeatedly used, and can be thinly folded up before/after being used to be compactly stored in a backpack or a bag etc. <P>SOLUTION: In a blank, folding lines are provided beforehand on a nearly square cardboard. The cardboard is folded in half according to the folding lines to form the container. A radial folding line is folded inward, and tip-opening folding lines are folded outward to stand side walls along respective sides of a bottom wall. By sandwiching the radial folding line, a space between the tip-opening folding lines is used as a two-folded closed piece to form a square container tapered downward. In this state, while the bisected folding lines are folded outward sandwiching an intersection with diagonal folding lines, the diagonal folding lines are folded inward, thus flatly folding the foldable paper container. <P>COPYRIGHT: (C)2012,JPO&INPIT |
