| 摘要 |
It consists of an assembly of mutually articulated pieces which are intended to assemble two beams 1 and 2 at any angle. It includes, on the one hand, two fastening pieces: a stirrup piece 3 fastened on the beam 2 and a cylindrical tube 13 about which the beam 1 can pivot and, on the other hand, a linking piece 8 providing, between the two preceding ones, a double articulation in two orthogonal planes. <IMAGE>
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