| 摘要 |
A connecting element for cruciformly connecting quadrangular structural elements each having a connecting surface, has a plate-like member including a central portion having lateral sides, and side portions each located at one of said lateral sides of the central portion. The central portion and the side portions have supporting surfaces arranged to support the connecting surfaces of the structural element and provided with means for connecting the latter to the plate-like member. The supporting surface of the central portion has dimensions which are at least equal to the dimensions of the connecting surface of the structural element, whereas the supporting surface of each of the side portions has at least one dimension which is smaller than a corresponding dimension of the structural element. In such a construction when one of the structural elements is connected to the central portion and other structural elements are connected to the side portions of the plate-like member, the structural elements are cruciformly arranged relative to one another and a section of the connecting surface of each of the other structural elements projects beyond the respective side portion and thus remains free for connecting with a further structural element.
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