Patent ID: 9593788
Date: 2017-03-14
CPC Classifications: F16L,Y10T

Claim:
1. A clamping collar having a substantially cylindrical metal belt, a pair of projecting lugs having respective facing front portions, a tightening rod disposed in holes in said lugs, and two tightening members co-operating with said rod and with respective ones of bearing portions of the two lugs in the pair to move the lugs closer together in such a manner as to cause the belt to be tightened by reducing a diameter of said belt, the bearing portion of at least a first one of the lugs being formed in an extension of said first lug, which extension is folded over towards a rear of said first lug, away from a second lug in the pair, and is provided with a hole for the tightening rod, said hole being situated facing a hole in the front portion of the first lug, a bracing space being provided between the folded-over extension and said front portion of the first lug, the extension and the front portion of the first lug being interconnected via a strip portion forming a link loop defining an axial tunnel having two open axial ends, said tunnel being shaped so that an angle of inclination between the extension and the front portion of the first lug can change when the collar is tightened, and wherein the tightening rod is threaded, and the hole in the extension of the first lug has a tapped neck co-operating, by screwing, with the tightening rod while said rod is mounted loosely through the hole in the front portion of said first lug.