Torque sensing, automatic shut-off and reset clutch for toggle c

Details Torque sensing, automatic shut-off and reset clutch for toggle c Torque sensing, automatic shut-off and reset clutch for toggle c

1987-08-07

1989-07-04

Yost, Frank T.

Tool driving or impacting

Automatic control of power operated means

Tool advance causing or controlling means

173169, 173170, 81470, 81473, B25B 23145

Patent

active

048441775

ABSTRACT:
An improved torque control and fluid shut-off mechanism for a fluid operated tool includes a bit holder and driving clutch member which are connected for uniform cojoint axial movement and independent rotary movement. Spring biased ball bearings provides for cojoint rotary movement which is overcome when the spring biasing force associated with the driving clutch member exceeds a threshold level. A locking sleeve fitted over the driving clutch member cooperates with a control rod for the fluid inlet to the rotary vane air motor to control initiation of operation, termination of operation, and resetting of the tool. A toggle-type trigger controls inlet fluid for forward and reverse operation of the tool.

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