Extensible wrench construction

Details Extensible wrench construction Extensible wrench construction

1984-09-20

1986-05-06

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

403109, B25G 104

Patent

active

045864063

ABSTRACT:
An improved wrench construction wherein a telescoping handle is extensible and retractable for varying the torque applied to a given work piece such as a nut. The handle of the wrench telescopes a wrench shaft, the two in combination being combined with a quick-release mechanism for easily changing the handle setting from one over-all length to another. In a preferred form of the invention, the wrench is supplied with parallel elongate detent pins that cooperate with grooves in the wrench shaft; these detent pins are lifted rearwardly and outwardly from a particular groove within which they are aligned, by a suitable actuatable sleeve, the essential distance of sleeve travel, relative to pin disengagement from a particular groove, being greater than pin travel out of a particular shaft slot.

REFERENCES:
patent: 2705119 (1955-03-01), Ingwer
patent: 2963930 (1960-12-01), Clothier et al.
patent: 3306639 (1967-02-01), Lyon
patent: 4169687 (1979-10-01), Schull

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