Torque limiting wrench

Details Torque limiting wrench Torque limiting wrench

1985-05-10

1986-02-25

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

464 37, B25B 25159

Patent

active

045720410

ABSTRACT:
A torque limiting wrench is provided having an input member and an output member coupled to each other so as to limit the transmitted torque therebetween. The coupling is provided by spring rods supported in the output member surrounding the input member, the spring rods being arranged along a pitch circle disposed concentric with respect to the input member and, in the tension-free state, disposed within the zone of axial catches arranged on the circumference of a collar provided on the input member. When a sufficient input torque is admitted, the spring rods are bent outwardly by the flanks of the catches and out of the range of the catches when the predetermined torque is reached.

REFERENCES:
patent: 2472659 (1949-06-01), Greer
patent: 2558158 (1951-06-01), Rock
patent: 2706388 (1955-04-01), Potgieter
patent: 3830119 (1974-08-01), Travis

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