| 摘要 |
This assembly device uses dovetail-shaped longitudinal ribs on the vertical tubular elements (12655394) forming angular lateral grooves (4) in which the biting parts (5) of jaws (6) become fastened in the closed position, the jaws being carried by a clevis (7) fixed to one end of a horizontal tubular element (2) and pierced through vertically by a housing (8) for a key (9), which key locks the jaws in this closed position, the front face of the clevis (7) furthermore carrying a median stub (11) designed to be engaged in the corresponding hole (12) of a series of holes provided in the outer face or the top of each longitudinal rib (3). <IMAGE>
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