Torque limiting device for shears

Details Torque limiting device for shears Torque limiting device for shears

1988-07-05

1990-10-23

Yost, Frank T.

Cutlery

Cutting tools

Plural cooperating blades

30200, 30144, B26B 1300

Patent

active

049642162

ABSTRACT:
A shearing device capable of being articulated between open and closed positions for cutting material includes pairs of handle levers and shearing elements rotatably mounted on a pivot mechanism. A clutch assembly comprising plates with complimentary and fixed configurations biased in abutting and intermeshing relationship when in a predetermined rotary alignment is positioned between the pairs of handle levers and switching elements. The clutch assembly is responsible to a predetermined force generated when the handle levers are articulated towards a closed position and the shearing elements encounter cut resistant material for camming the plates out of meshing relationship and operatively disconnecting the handle levers.

REFERENCES:
patent: 2819638 (1958-01-01), Palmer
patent: 3885306 (1975-05-01), Herman

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