| 摘要 |
A connecting arrangement for box-shaped support structures connects the upright walls constituting the support structure to one another at upright marginal portions thereof. The connecting arrangement includes upper and lower connecting projections which are rigid with the marginal portions of one of the walls, and upper and lower slots which are provided in the marginal portions of another wall constituting the support structure. Each of the upper slots has an L-shaped configuration, commences at the upper end face of the marginal portion and extends first downwardly therefrom and then toward the side face of the marginal portion. Each of the lower slots has a substantially inverted V-shaped configuration and extends inwardly from the above-mentioned side face of the marginal portion, first upwardly and then downwardly. The respective end zones of the slots are vertically aligned with one another and receive the connecting projections of the first-mentioned marginal portion. The lower slot further includes an elongated extension which commences at the end zone of the lower slot and extends therefrom vertically upwardly. The distance between the end zones of the slots, on the one hand, and between the end zone of the upper slot and the open end of the lower slot, on the other hand, corresponds to the distance between the connecting projections. As a result of the configurations of the slots, the connecting projections are securely retained therein regardless of the subsequent orientation of the support structure. |
