TIGHTENING COLLAR FOR CONDUIT, CONDUIT THAT IS PROVIDED AND METHOD OF ROTATING BLOCKING THE NECKLACE ON THIS CONDUIT

摘要

The present invention relates to a clamp adapted to be mounted in a groove of a polymeric conduit to be connected to a nozzle for the transport of a fluid, such a conduit equipped with this collar and a method for locking the collar in rotation on this conduit. The invention applies in particular to a hot air duct under pressure for a motor vehicle of plastic type and requiring a metal embedded collar. This clamping collar (1) comprises: - a circumferential tightening band (2) whose two ends (2a and 2b) overlap in a covering zone of the band having two radially internal and external overlapping faces; clamping (3) of the strip mounted in contact with said cover faces, and - a locking means (6) mounted on the clamping member and adapted to lock the collar in rotation in the groove (11) of the conduit (10) . According to the invention, this locking means, non-metallic, bears on said outer covering face and covers the clamping member radially outside this face.