| 摘要 |
Two hollow-section bars (1;2) of the same rectangular cross-section, in which two inner sections (10;11) of the same rectangular cross-section are formed, are set against each other at an angle and connected by two bolts (17) which are of at least partially round cross-section and fit by means of blocks (12;13), adapted to the cross-section of the inner sections (10;11), on the one hand in the two inner sections (10;11) of the one hollow-section bar (1), from which they protrude at the end face, and on the other hand in the one inner section (11) of the other hollow-section bar (2), the wall (8) of which they pass through in bores. In the latter hollow-section bar (2), the blocks (12) are held by pins (22), which engage through bores in the wall (3) of the hollow-section bar into bores (20) of the blocks (12), and the bolts (17), which protrude into recesses (19) adapted to their cross-section of the blocks (12), are held by the same pins (22), which extend further into bores (21) of the bolts (17) or clamp on the latter with spikes. In the first section bar (1), the blocks (13) and the bolts (17) are held similarly (27-30) or the bolts (17) have been connected (24-26) in advance to the blocks (13) and the pins engage in bores of the blocks or clamp on the latter with spikes. <IMAGE> |
