| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in which a bottomed cylindrical outer package in a folded state cannot be expanded smoothly.SOLUTION: A blank 3 of an outer package 2 comprises six side face parts 4, 4a,,, bottom flaps 5, 5a,,, and a gluing part 6. A central folding line L3 is formed on the bottom flap 5b of the side face part 4b at the front face center. The bottom flap 5e of the side face part 4e at the rear face center is bonded to the bottom flap 5b. The bottom flaps 5a, 5c of the side face parts 4a, 4c at the front face sides and the bottom flaps 5, 5d of the side face parts 4, 4d at the rear face sides are bonded. The flap 5, 5d forming lower support bottom parts 9b, 9c are composed of a bottom part formation portion 7 and a bonding portion 8 formed continuously through a valley-folded folding line L4. A bottom part 9 consisting of a bottom main body part 9a and the lower support bottom parts 9b, 9c is formed when the bottom flaps 5b, 5, 5d in a folded state gradually open. Thus, the outer package can be expanded smoothly.SELECTED DRAWING: Figure 4(a) |
