Torque wrench

Details Torque wrench Torque wrench

1997-11-25

1999-06-15

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

384 58, 7386223, B25B 23142

Patent

active

059118016

ABSTRACT:
This wrench comprises an outer body (2) of elongate shape in which the head (1) of the wrench is articulated about a pivot (12); a plunger (3) that can move axially in the outer body and is urged towards the head by a preloaded spring (4); and at least a first rolling body (22) intended to reduce friction as the plunger moves. The rolling body (22) is a cylindrical roundel whose peripheral surface rolls on the one hand along a first flat track (16) secured to the outer body and which is pressed against this track when torque is applied, and on the other hand along a second flat track (20) formed on the plunger.

REFERENCES:
patent: 2887919 (1959-05-01), Aijala
patent: 2897704 (1959-08-01), Woods
patent: 2959078 (1960-11-01), Skidmore
patent: 3633445 (1972-01-01), Aijala
patent: 5129293 (1992-07-01), Larson et al.
patent: 5244284 (1993-09-01), Larson et al.
patent: 5503042 (1996-04-01), Larson et al.

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