Tensionable pipe coupling

A CLUTCH TUBULAR attachable FOR AXIAL UNION OF TWO TUBES (3) SMOOTH containing at least one ring (12) SHOWING A BREAK, which is formed from a metal band and SITUATION UNITED TUBE (3) RODEA end TRAMOS . RINGS HAVE IN YOUR INNER EDGE RADIAL TEETH (13) staying in a plane of the metal strip, THAT IN FIXING THE LINK IN TUBULAR mesh tube material. TEETH (13) COORDINATED WITH A PIPE (3) are inclined towards the teeth (13) COORDINATED the other tube (3). To give TEETH (13) high rigidity BEND AND TO PREVENT FORMING STRETCH IN THE TUBULAR SURFACE TUBES (3) OF CUERDO to the invention have an edge (21) which extends transversely to the axial direction THE tUBULAR COUPLING. TO DO THIS SIDE (16) of each tooth (13) facing the outside of the tube (3) INTRODUCED IN THE TUBULAR COUPLING forms an acute angle with the side TOOTH, LIMITING CONESTE SIDE (19), HEADED TOWARD THE TUBE (3) even on the surface (20) CONTINUOUS FRONT TOOTH (13).