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.
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.
SHIRAISHI TORU
WADA NORIYUKI
OGAWA HIROSHI
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