| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a box-shaped container (especially, the box-shaped container made of a foamed resin) a plurality of which can be stably step-stacked in the vertical direction even when dimensional deflection of the container is large. <P>SOLUTION: An engaging projection 6 is provided on the upper end parts of side walls 3 and 4 of the box-shaped container along the peripheral edge of the upper end of the container, and the engaging projection 6 has an engaging outer face 62 the upper end of which is inclined so as to fall on the inside of the container. On the lower face side of a bottom wall 2 of the box-shaped container, an engaging projection 8 as a leg part which can be engaged on the engaging projection 6 on the upper end of the side walls of the container at the lower position than the position of the container when the containers are step-stacked is provided along the peripheral edge of the lower end of the container. The engaging projection 8 has an engaging inner face the lower end of which is inclined so as to fall outside of the container by an angle of inclination approximately corresponding to the angle of inclination of the engaging outer face 62. At respective corner parts of the box-shaped container, the corner parts 6C of the engaging projection 6 on the upper ends of the side walls are made into cutout shapes toward the inside of the container so that the engaging outer faces 62 of the engaging projection on the adjoining two side walls 3 and 4 turn discontinuously separated. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
