Patent ID: 6729985
Filing Date: 2004-05-04
Classification: F16H

Abstract:
A continuously variable reversible transmission system including an input shaft, a housing, an input arm, first and second CVT shafts, a fixed input wheel, a ratio selector mechanism, an overall output wheel and an output shaft,the input shaft having a major axis, the input arm being fixed to the input shaft, the input arm including at least first and second portions, each input arm portion extending substantially perpendicular to the input shaft, at each end of the input arm first and second portions, a respective first and second CVT shaft is rotatably mounted, each of the first and second CVT shafts having a respective major axis extending substantially parallel to the input shaft, the major axis of each of the respective first and second CVT shafts being the axis of rotation of the respective shaft with respect to the input arm, the fixed input wheel being aligned with the major axis of the input shaft, the first CVT shaft being coupled with the fixed input wheel, the second CVT shaft being coupled with the first CVT shaft, the overall output wheel being coupled with the second CVT shaft, the overall output wheel being fixed to the output shaft, wherein the first and second CVT shafts orbit around the major axis of the input shaft due to rotation of the input shaft, such that changing a ratio of at least one of the couplings produces a variation of the speed of the output shaft from forwards, through zero to reverse.