Patent ID: 6158544
Filing Date: 2000-12-12
Classification: B62D

Abstract:
A steering system adapted for use with an articulated machine having a first and second frame members mounted to one another for pivoting movement relative to one another in response to a movement of at least one fluid actuator connected therebetween, comprising:a steering control member rotatably mounted on the first frame member;a control valve mounted on the second frame member, said control valve being operable in one of a first and second condition upon rotation of the steering control member to selectively control the movement of the fluid actuator;a shaft assembly having a first end portion connected to the steering control member and a second end portion connected to the control valve, said shaft assembly having a pair of constant velocity U-joints interposed between an end portions thereof and being adapted to accommodate the angular change between the two frame members as they are moved with respect to one another and maintain a rotation ratio of approximately 1:1 between the first and second end portions of the shaft assembly.