| 摘要 |
PROBLEM TO BE SOLVED: To certainly join containers mutually by simple work to integrate them. SOLUTION: Projected parts 12 are intermittently formed to the part on the bottom surface side of a container main body 10 and the guide parts 21 fitted to the projected parts are intermittently formed to the part on the surface side of a lid 20. Each of the projected parts 12 has an upper or lower taper surface 12a or 12b and the groove part 21a of each of the guide parts 21 has an upper or lower guide surface 21d or 21e having a shape corresponding to that of the upper or lower taper surface. When a plurality of containers are stacked, at first, the upper container is placed on the lower container so that the projected parts 12 thereof are positioned between the guide parts 21 of the lower container and, next, the upper container is rotated clockwise to fit the projected parts to the groove parts 21a. The projected parts 12 and the guide parts 21 are strongly fitted to each other by wedge action and this fitted state of them can be easily released. Further, by attaching connection members to the hole parts formed to the fitted containers, the collapse of a plurality of the stacked containers at a time of transport is prevented. |
