Patent ID: 6089131
Filing Date: 2000-07-18
Classification: B25B

Abstract:
A ratcheting wrench for driving a device having a head with a hexagonal driving profile comprising six flat faces and six corners defined by said flat faces, said wrench comprising:an open jaw structure comprising and defined by a front jaw, a rear jaw, relative to the driving direction, and an arch interconnecting said front and rear jaws, each of said jaws comprising a driving surface for cooperation with a front face and a rear face, respectively, of said driving profile in a front half of said faces relative to said driving direction, said front and rear faces being in opposed relation to each other in said hexagonal profile,said open jaw structure further comprising on said arch a curved convex bearing protuberance for cooperating, in the absence of torque and throughout the range of the applied driving torques, with a bearing point on an intermediate face of said driving profile situated immediately in front of said rear face relative to said driving direction, said bearing point of said intermediate face being situated in a front half of said intermediate face, in the absence of torque and in the range of the applied driving torques, and said arch being, in the driving position of said jaw structure, completely spaced away from said driving profile, other than at said bearing point, in the absence of torque and during the application of said driving torque.