| 摘要 |
PROBLEM TO BE SOLVED: To prevent corrugated board boxes from slipping or falling when being stacked up in tiers even though an external force is applied thereto and to improve efficiency in taking-in and taking-out of the boxes while preventing damages arising from drop impact from occurring to articles inside the boxes by a method wherein protuberant shapes are provided at one side of contacting surfaces of the upper and lower boxes while holes or grooves for inserting the protuberant shapes therein are provided at the other side of the contacting surfaces. SOLUTION: The structure is such a one wherein incised erections 20 for preventing slippage of box are provided at the top surface, namely one of the contacting surfaces of boxes 10 and 10, while holes 30 or grooves for inserting the incised erections 20 therein are provided at the bottom face, namely the other of the contacting surfaces of the boxes. The structure may be such a one wherein the holes 30 or the grooves for inserting the incised erections therein are provided at the top surface while the incised erections 20 are provided at the bottom face, and engagement is made with the boxes stacked up in tiers. In order to solve the problem of external appearance wherein articles inside the box become visible through the incised erections 20 and the holes 30 and to prevent coming-in of foreign matters, the incised erections 20 and the holes 30 are positioned right above inner flaps 50 so that the inside articles can be prevented by the inner flaps 50 from becoming visible from the outside. |
