Torque controller shutoff mechanism

Details Torque controller shutoff mechanism Torque controller shutoff mechanism

1976-03-15

1978-03-14

Hafer, Robert A.

Tool driving or impacting

Automatic control of power operated means

Tool advance causing or controlling means

192150, B23Q 5027

Patent

active

040786188

ABSTRACT:
A torque tool having a rotation transmitting, torque sensing, energy absorbing, non-overriding mechanism interconnecting a motor and a rotatable driven head. The mechanism includes a driven member coupled to the head and a driver coupled to the motor with the driver yieldably biased toward the driven member. The driven member has cam surfaces facing the driver engaged by bearing surfaces on the driver. The cam surfaces on the driven member permit rotation of the driver relative to the driven member and are sloped such that a preselected torque between the driven member and driver results in the rotation and translation of the driver relative to the driven member. The translation is communicated for the release of a valve rod which actuates a valve to shutoff the motor. The kinetic energy causing relative rotation after shutoff of the motor is stored and dissipated by springs.

REFERENCES:
patent: 3237742 (1966-03-01), Ulbing
patent: 3298481 (1967-01-01), Schaedler et al.
patent: 3442362 (1969-05-01), Bangerter
patent: 3450214 (1969-06-01), Bangerter et al.
patent: 3610386 (1971-10-01), Pain
patent: 3616864 (1971-11-01), Sorensen
patent: 3766990 (1973-10-01), Eckman et al.
patent: 3792737 (1974-02-01), Bratt

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