WRENCH FOR MOUNTING AND DISMOUNTING PIPES

摘要

The invention relates to a wrench with locking rollers useful for pipe mounting-dismounting processes. According to the invention, the wrench comprises a fixed jaw (1) provided with a driving arm (2) and a mobile jaw (3), said jaws being joined by an articulation (4) and locked by means of a latch (5), on their inner surface (a, b) the jaws being provided with some seats (c) wherein there are some rollers (6) locked by some metal half-rings (7, 8) secured with some screws (9). The seats (c) have a wedge-like wall (d).