Ratchet wrench tool head positioner

Claim 1

A ratchet wrench tool head positioner comprising: a. a ratchet tool head having a depending stud including a pair of parallel side walls and an arcuate lower end, said lower end having formed therein a plurality of transverse grooves; b. a tool head holder including an elongated body having an axial receptacle at one end to receive a handle and being bifurcated at the other end to define a fork with arms straddling said side walls of said stud; c. a pivot pin rotatably mounting said stud between said arms of said fork for relative angular movement between said tool head and said tool head holder; d. a lock pin rotatably mounted on said fork parallel to said pivot pin, the portion of said lock pin adjacent said lower end of said stud having a segment removed to provide clearance between said lock pin and said stud in a first angular position of said lock pin, the unremoved portion of said lock pin protruding into a selected one of said transverse grooves in a second angular position of said lock pin to lock said tool head relative to said tool head holder; and, e. actuating means mounted on said lock pin for rotating said lock pin between said first position and said second position alternately to lock and unlock said tool head and said tool head holder in a predetermined angular relation.