Clamping device for an assembly with a flexible covering of a mine-supporting frame

The invention relates to a clamping device for an assembly with a flexible covering of a mine-supporting frame. This clamping device 5, 6, 7, 8 comprises at least two channel-shaped sections 2, 3, two clamping devices being arranged symmetrically with respect to the central plane 4 of the sections, while each consists of a hooked bolt 13, 14, 15, 16, of a clamping piece 17, 18, 19, 20 and of a threaded nut, the clamping piece comprising an extension 25, 26, 27, 28 bearing on the hooked bolt. The device, according to the invention, is used so that the various clamping heights may only bring about small variations in the clamping force in an assembly with a flexible covering of a mine-supporting frame. L'INVENTION CONCERNE UN DISPOSITIF DE SERRAGE POUR UN ASSEMBLAGE A RECOUVREMENT SOUPLE D'UN CADRE DE SOUTENEMENT DE MINE.CE DISPOSITIF DE SERRAGE 5, 6, 7, 8 COMPORTE AU MOINS DEUX PROFILES EN FORME DE GOUTTIERES 2, 3, DEUX DISPOSITIFS DE SERRAGE ETANT DISPOSES SYMETRIQUEMENT PAR RAPPORT AU PLAN CENTRAL 4 DES PROFILES, TANDIS QUE CHACUN EST CONSTITUE D'UNE VIS A CROCHET 13, 14, 15, 16, D'UNE PIECE DE SERRAGE 17, 18, 19, 20 ET D'UN ECROU FILETE, LA PIECE DE SERRAGE COMPORTANT UN PROLONGEMENT 25, 26, 27, 28 PRENANT APPUI SUR LA VIS A CROCHET.LE DISPOSITIF, SUIVANT L'INVENTION, EST UTILISE AFIN QUE DIFFERENTES HAUTEURS DE SERRAGE NE PUISSENT DECLENCHER QUE DE FAIBLES VARIATIONS DE LA FORCE DE SERRAGE DANS UN ASSEMBLAGE A RECOUVREMENT SOUPLE D'UN CADRE DE SOUTENEMENT DE MINE.