| 摘要 |
PROBLEM TO BE SOLVED: To provide a stacking-up structure wherewith a wheeled cage at the upper tier in stacking is prevented from skidding in the horizontal direction against the wheeled cage at the lower tier. SOLUTION: Support members 24 and 25 are provided respectively at a side frame 3 and side frames 4 of the wheeled cage 1, and the wheeled cages are stacked up in tiers by putting one wheeled cage 1 on the support members 24 and 25 of another wheeled cage 1. On stacking up, while protuberant parts 40 formed at the underside of the wheeled cage 1 placed on the upper tier are fitted into dented parts 32 formed at the support members 25 on the right and left of the wheeled cage 1 placed on the lower tier, an engaging member 37 provided at the underside of the wheeled cage 1 placed on the upper tier is engaged with the support member 24 at the rear of the wheeled cage 1 placed on the lower tier, and thereby the wheeled cage 1 placed on the upper tier is prevented from skidding in the horizontal direction against the wheeled cage 1 placed on the lower tier. |
