Electrically powered torque-controlled tool

Details Electrically powered torque-controlled tool Electrically powered torque-controlled tool

1978-05-04

1981-05-05

Staab, Lawrence J.

Tool driving or impacting

Automatic control of power operated means

Tool advance causing or controlling means

192 0034, 192150, B23Q 5027

Patent

active

042653207

ABSTRACT:
An electrically powered torque-controlled tool having an electric motor which rotates a bit, whereby a screw, bolt or nut fitted at the front end of the bit is tightened. The tool is designed so that when the tightening force exerted by the bit reaches a preset torque, the driving by the electric motor is stopped by opening the switch and concurrently therewith a clutch interposed between the electric motor and the bit is disengaged and held in this released state, thereby avoiding the reaction which would otherwise be produced by the motor inertia immediately after the tightening, thus achieving a high-precision tightening operation.

REFERENCES:
patent: 2775137 (1956-12-01), Chung
patent: 2886075 (1959-05-01), Skoog
patent: 3020789 (1962-02-01), Etzkorn
patent: 3034623 (1962-05-01), Amtsberg
patent: 3059620 (1962-10-01), Eckman
patent: 3121813 (1964-02-01), Pratt et al.
patent: 3205992 (1965-09-01), Clapp
patent: 3331452 (1967-07-01), Wanner
patent: 3419087 (1968-12-01), Amtsberg et al.
patent: 3420250 (1969-01-01), Holmes
patent: 3442360 (1969-05-01), Fulop
patent: 3477521 (1969-11-01), Kiester et al.
patent: 3585427 (1971-06-01), Paule
patent: 3873863 (1975-03-01), Pew
patent: 4049104 (1977-09-01), Webb
patent: 4078618 (1978-03-01), De Pagter et al.

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