Patent ID: 6629470
Filing Date: 2003-10-07
Classification: B60K,Y10T

Abstract:
In a tractor having a frame supported by ground-engaging wheels, an engine supported by said frame, a transmission with clutches, said transmission interconnecting said engine and said wheels and operable to select a number of vehicle speeds, and a device for transmitting power from said engine to a PTO mechanism, the improvement comprising:said device including a high speed mechanism that is capable of selecting a higher vehicle speed which is greater than any of said number of vehicle speeds selectable by said transmission; the connection of said high speed mechanism causing said transmission clutches to automatically disengage, but involving no other change in said transmission in order to select said higher vehicle speed; and an apparatus for switching from a PTO mode, wherein a shaft of said PTO mechanism rotates, to a full speed mode, wherein said shaft does not rotate, said PTO mechanism including first and second gears having a velocity ratio corresponding to said higher vehicle speed which are rotated when said full speed mode is selected.