RATCHETING TORQUE WRENCH HEAD

摘要

A ratcheting wrench head for use with a torque wrench has spaced apart first and second jaws extending from a base portion to define an opening for accommodating a bolt or nut to be rotated. A ratchet member is movably mounted in a through hole formed in the second jaw between an outer surface and an inner surface of the second jaw. A biasing member is located in the through hole of the second jaw and forces the ratchet member against a portion thereof. Inner surfaces of the first jaw and the second jaw are particularly constructed to enhance ratcheting performance of the wrench head relative to the bolt or nut. The through hole is formed with a dirt slot for enabling removal of foreign material from the wrench head.

主权项

1. A ratcheting wrench head comprising:
a base portion provided with one end extending from a handle member, and an opposite end constructed with a first jaw and a second jaw that are spaced from each other, and together with the base portion, define an opening adapted to accommodate a body to be rotated, the first jaw and the second jaw each having an inner surface and an outer surface; a ratchet member movably mounted between the outer surface of only one of the first jaw and the second jaw and the inner surface of the one of the first jaw and the second jaw and protruding through the inner surface; a biasing member located in the one of the first jaw and the second jaw and normally forcing the ratchet member in the direction of the base portion against a portion of the one of the first jaw and the second jaw; wherein the inner surface of the other of the first jaw and the second jaw includes a first front planar portion and an angled surface rising upwardly and rearwardly therefrom at a first angle towards the outer surface of the other of the first jaw and the second jaw; and wherein the inner surface of the one of the first jaw and the second jaw includes a front planar portion and a rear planar portion extending upwardly and rearwardly therefrom towards the base portion at a second angle which is greater than the first angle.