Patent ID: 6637283
Filing Date: 2003-10-28
Classification: F16H,Y10T

Abstract:
A control apparatus for a vehicle-mounted CVT having a primary output shaft, said control apparatus comprised of:a) an enclosure comprised of front, rear and top walls bounded by interior and exterior surfaces, b) an input shaft of circular cylindrical surface contour adapted to engage said primary output shaft as an axial extension thereof and rotatively journaled to said front and rear walls, c) low gear and drive gear drive sprocket wheels mounted upon said input shaft in freely rotatable manner and in axially spaced apart relationship, each having, respectively, first and second circular arrays of coupling lobes surrounding said input shaft and axially directed toward said rear wall, d) axially aligned splines disposed within the surface of said input shaft, e) a first gear coupler mounted upon said input shaft so as to be rotatively driven thereby and interactive with said splines so as to be axially slidable upon said shaft, and provided with a third circular array of axially directed coupling lobes adapted to engage said first array of lobes, f) a second gear coupler mounted upon said input shaft so as to be rotatively driven thereby and interactive with said splines so as to be axially slidable upon said shaft, and provided with opposed fourth and fifth circular arrays of axially directed coupling lobes, said fourth array adapted to engage the lobes of said second array, g) a sixth circular array of coupling lobes fixedly associated with said rear wall and adapted to engage the lobes of said fifth array, thereby preventing rotative movement of said input shaft and creating a parking status of said vehicle, h) shifting means for sliding said first and second gear couplers along said input shaft, i) a secondary output shaft journaled to said front and rear walls below said input shaft, and parallel thereto, j) low gear and drive gear driven sprocket wheels fixedly mounted upon said secondary output shaft, and interactive with said low gear and drive gear drive sprocket wheels by way of positive drive means, said low gear driven sprocket wheel being of greater diameter than the corresponding low gear drive sprocket wheel, and said drive gear driven sprocket wheel being of substantially equal diameter with the corresponding drive gear drive sprocket wheel, k) a driven spur gear fixedly mounted upon said secondary output shaft adjacent said rear wall and interactive with a drive spur gear carried by said second gear coupler, said interaction causing said secondary output shaft to rotate oppositely to said output shaft, whereby, l) shifting movement of said first and second gear couplers produces low speed, high speed or reverse rotational movement of said secondary output shaft, or locked securement thereof.