| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag that has a locking function for making it easy to open a lid and that can be correctly and securely formed. SOLUTION: The packaging box, including a front panel, side panels, a rear panel, the lid, a side flap formed along the end of each of the side panels, and an insertion flap formed along the edge of the lid, has a locking portion at the side edge of each side flap and a pressing portion at the corresponding insertion flap, wherein the pressing portion disposed in a part to be engaged with the locking portion includes a recess on the surface of the insertion flap and a projection on the rear of the flap and is composed of a combination of part parallel to the fold lines of the lid and insertion flap and part that is not parallel to these fold lines. COPYRIGHT: (C)2011,JPO&INPIT
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