| 摘要 |
<p>PROBLEM TO BE SOLVED: To stably stack carriers by providing recessed parts, in which rear casters and front casters are to be fallen, outside adjacent to front casters and inside adjacent to the front casters. SOLUTION: When stacking carriers, an upper carrier is placed on a lower carrier while reversing it in the fore and aft direction so that a second side 12 of the upper carrier is placed on a first side 11 of the lower carrier. Second casters 23, 24 of the upper carrier are fallen into first recessed parts 31, 32 of the lower carrier, and first casters 21, 22 of the upper carrier are fallen into second recessed parts 33, 34 of the lower carrier, and a stopper 41 or 44 of the upper carrier collides with a base plate 1 of the lower carrier, and stops. With this structure, height of the stacked carriers is lowered by a distance to a lower end of the caster. Since the stopper 41 or 44 abuts on the base plate movement of the upper carrier on the lower carrier is prevented.</p> |
