Patent ID: 6966544
Filing Date: 2005-11-22
Classification: B66B,B66C,B66D

Abstract:
1. A hoist apparatus comprising: a frame; a hoist drum supported by the frame for rotation about a hoist drum axis; a hoist motor supported by the frame for selectively rotating the hoist drum in opposite wind-on and wind-off directions about the hoist drum axis; a hoist rope wound around the hoist drum such that the hoist rope winds on to and off of the hoist drum in response to rotation of the hoist drum in the wind-on and wind-off directions, respectively; a gearbox coupled to the hoist motor, the gearbox including an output shaft; a ring gear external to the gearbox, wherein the ring gear is coupled to the hoist drum for selectively rotating the hoist drum in opposite wind-on and wind-off directions about the hoist drum axis in response to the hoist motor; and an adapter plate coupled to the gearbox, the adapter plate permitting a pinion coupled to the output shaft to drivingly engage the ring gear with the gearbox in a plurality of orientations relative to the frame.