| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging box that facilitates handling, in which while preventing displacement between an upper box and a lower box by getting a flat locking portion of the lower box into a recessed portion of the upper box in stacking, deterioration of strength to the load from the upper side of a top surface center is reduced as much as possible, and a part between boxes is made easy to open from a vertically-stacking form.SOLUTION: The packaging box includes: locking plate sections 5 provided, in the vicinity of respective corner sections of top surface external flaps 20, 21, while superposing plate pieces 32; notch-shaped sections 33 provided respectively in the corner sections of the top surface external flaps 20, 21; and recessed sections 34 provided, on a box top surface 3, to extend to the periphery of the box top surface 3 using the notch-shaped sections 33 and top surface internal flaps 22, 23. The packaging box is configured to generate an open space in communication with the outside at the position of the notch-shaped sections 33 between the upper box and the lower box when stacking the boxes. |
