Automatic overload release and power stoppage device

Details Automatic overload release and power stoppage device Automatic overload release and power stoppage device

1993-08-05

1994-05-10

Smith, Scott

Tool driving or impacting

Automatic control of power operated means

Drive means responsive to torque or speed condition

192 56R, B25B 2314

Patent

active

053100107

ABSTRACT:
An automatic overload release and power stoppage device consisted of a central control mechanism, a power switching mechanism, a power output mechanism, a torque control mechanism, and a release control mechanism, whereby the central control rod of the central control mechanism is moved upwards to trigger the power switch of the power switching mechanism in turning the main shaft thereof and the output shaft as the output shaft of the power output mechanism; the central control rod is moved downwards by the release control ring of the release control mechanism to cut off power source as the torsional force surpasses the critical level set by a torque control mechanism.

REFERENCES:
patent: 3242996 (1966-03-01), Wright et al.
patent: 3477521 (1969-11-01), Kiester et al.
patent: 4078618 (1978-03-01), De Pagter et al.
patent: 4265320 (1981-05-01), Tanaka et al.
patent: 4480699 (1984-11-01), Elmer
patent: 4880064 (1989-11-01), Willoughby et al.
patent: 5054588 (1991-10-01), Thorp et al.

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