Winch drive and braking mechanism

Details Winch drive and braking mechanism Winch drive and braking mechanism

B - Operations, Transporting

66

D

254/96

B66D 1/14 (2006.01)

Patent

CA 1154748

TITLE IMPROVED WINCH DRIVE AND BRAKING MECHANISM ABSTRACT OF THE DISCLOSURE A drive train for a winch from a continuously rotat- ing input source to an intermittently rotated drum in which the drive train is through a clutch, thence to a shaft, thence through a continuously driven internal brake which forms a part of the drive train from the shaft, thence to the drive train to the drum, with the shaft being provided with a one- way clutch so that the brake automatically is engaged for low- ering the load by reversing the drum. A free-spool circuit is provided which can be operated only in the brake release posi- tion for safety and is operated off the brake release hydrau- lic control fluid pressure. A static or manual pump control fluid circuit is provided for operating the clutch, brake and/ or free spool. A combination driving clutch and drag clutch are energized by opposite directional movement of a single piston for coupling an input to an output or stopping movement of the output.

385432

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