Patent ID: 6811504
Filing Date: 2004-11-02
Classification: F01B,F01M,F02B,F02F,F02M,F05C,F16H

Abstract:
A drive pulley for a continuously variable transmission, comprising:a shaft adapted for operative connection to an engine crankshaft; an inner half rotatably disposed on the shaft, the inner half having a belt engagement surface associated therewith adapted to engage a first side of a belt; an outer half rotatably disposed on the shaft, the outer half having a belt engagement surface associated therewith adapted to engage a second side of the belt; a slide sleeve disposed on the shaft adapted to engage an inner side of the belt, wherein the slide sleeve has at least one groove disposed on an inner surface of the slide sleeve; at least one pin extending from the shaft; and a spring biasing the inner half and the outer half apart from one another, wherein the slide sleeve freely rotates with respect to the shaft when the belt is engaged thereby and the belt either is stationary or travels in a first direction, wherein the slide sleeve is fixed with respect to the shaft when the belt travels in a second direction, opposite to the first direction, and wherein the at least one pin being biased to engage the at least one groove when the belt travels in the second direction.