| 摘要 |
<P>PROBLEM TO BE SOLVED: To save on material resources while improving working efficiency. <P>SOLUTION: There is disclosed a packaging box with its bottom face part formed by continuously installing a first bottom face flap 10 through to a fourth bottom face flap 13 around the periphery of the lowest end of a body part 1, with respective bottom face flaps 10 to 13 bent inside at their respective base edges, while first and third bottom face flaps 10, 12 are made to have slit holes 14, 14a, ... formed therethrough, with projecting strips 15, 15a, ... to be inserted into the slit holes 14, 14a, ... formed at the side edges 16, 16a, ... of the second and fourth bottom face flaps 11, 13 so that the neighboring bottom face flaps can be engaged rendering linkage between opposite bottom face flaps unnecessary and thus the bottom face flaps are made short in length. After the first and third bottom face flaps 10, 12 are bent, the second and fourth bottom face flaps 11, 13 are subjected to bending, with opposite pairs of bottom face flaps bent in sequence pair by pair, thus the order in which the bottom face flaps 10 to 13 are bent can be made simplified, alleviating a psychological burden felt during assembling. <P>COPYRIGHT: (C)2012,JPO&INPIT |
