Locking socket wrench extension

Details Locking socket wrench extension Locking socket wrench extension

1987-12-30

1988-11-01

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

811771, B25B 1300

Patent

active

047810858

ABSTRACT:
An extension for use with the drive member of a socket wrench system includes a shaft having a coupling at its rear end for attaching the rear end to a socket drive member, and a stud at its front end for torque transferring engagement with a socket. A locking mechanism secures a socket to the stud. The locking components are operable between a first position for positively locking a socket to the stud and a second position for releasing a socket. The locking mechanism includes a central bore within the shaft and a radial cavity from the central bore through the stud. A detent in the radial cavity has a locking position wherein it protrudes out of the stud when the locking mechanism is in its locking position so as to engage a socket and prevent its removal from the stud. The detent has a releasing position wherein it resides substantially within the stud and partially within the axial bore. A locking bolt within the axial bore is axially moveable by a thumb lever for activating the detent. The thumb lever and bolt are designed to allow easy attachment of the thumb lever to the bolt.

REFERENCES:
patent: 1864466 (1932-06-01), Peterson
patent: 4218940 (1980-08-01), Main
patent: 4297924 (1981-11-01), Stephens
patent: 4367663 (1983-01-01), Merics
patent: 4399722 (1983-08-01), Sardo
patent: 4480511 (1984-11-01), Nickipuck
patent: 4502365 (1985-03-01), Hacker
patent: 4589308 (1986-05-01), Palm

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