| 摘要 |
<p>The container allows the contents to expand or be compressed, and is preferably square in plan view, with two opposite walls folding against the two other opposite walls, which then fold down onto the base. The levers linking the two latter walls with the base are solidly attached to the walls, and attached to the base by means of bolts in the base fitting in elongated holes, thus allowing both sliding and pivoting movement. in the container underframe surface in contact with the base a bore can be provided in each side, working in conjunction with a taper pin on each of the walls.</p> |
