Warn Industries, Inc.

James W Haase

Thomas M Telford

A winch is powered by a motor mounted at one end of a drum through a three-stage planetary drive train disposed adjacent the opposite end of the drum. The motor includes a first drive shaft which extends axially into the interior of the drum. The drive train includes a second drive shaft which extends axially into the interior of the drum toward the motor. A brake-clutch assembly is disposed within the interior of the drum and operably interconnects the first drive shaft and the second drive shaft. The brake-clutch assembly operates automatically in response to the direction of the torque being transmitted between the first drive shaft and the second drive shaft. In operation, the brake-clutch assembly permits the second drive shaft to rotate relative to and power the drum to reel in the load on the cable and then frictionally locks the second drive shaft to the inside diameter of the drum to hold the load on the cable when the motor is stopped. When the motor is operating in the reverse direction to reel out the load attached to the cable, the brake-clutch assembly will frictionally bear against the inside diameter of the drum if needed to control the rotational speed of the drum to prevent it from overrunning the motor.

Growing community of inventors

Milwaukie, OR, United States of America

James W Haase