Patent ID: 6481950
Filing Date: 2002-11-19
Classification: G05G,Y10T

Abstract:
A control lever for controlling the operation of a work implement, the control lever comprising:a shaft extending substantially in a first direction that is generally perpendicular to a control plane; a linkage is operatively coupled to the shaft for allowing the pivotal movement of the shaft in two orthogonal directions in the control plane, the linkage is provided with a stub shaft that is located in an elongated slot which prevents the twisting motion of the shaft, the elongated slot having elongated side walls, the elongated slot is oblong with the side walls being joined together by a concave shaped top wall and a concave shaped bottom wall; a friction reducing material is attached to the side walls and the concave shaped top wall of the elongated slot, the stub shaft is cylindrical where it engages the friction reducing material on the side walls of the elongated slot, the friction reducing material is formed into a U-shaped insert that covers the side walls and the concave shaped top wall of the elongated slot.