| 摘要 |
The invention relates to an apparatus for fixing the spacing of section girders (1), in particular those used for scaffolding constructions, having thrust pieces which are arranged in the inner space and can be braced by means of a threaded spindle against the inner surfaces of opposite section-girder wall portions, the loading vectors of said thrust pieces being located in the inner space of the section girder. In order to optimise the loading capacity, the invention proposes that the loading vectors (V1, V2) of the thrust pieces located on one side of the section girder (2) intersect at a point (P) at which force is introduced, which is located on the threaded spindle (11) extending in the transverse central plane of the section girder, and which is supported on the opposite side of the section girder ... Original abstract incomplete. <IMAGE>
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