Patent ID: 6523617
Filing Date: 2003-02-25
Classification: E02F,Y10S

Abstract:
In a motor grader having a blade suspended beneath a frame of the grader and movable beneath the motor grader frame to various positions by means of at least a blade lift arrangement, a blade rotation arrangement, and a blade slide arrangement using an operator control arrangement, said operator control arrangement comprising a miniature representation of a motor grader blade support arrangement which controls the position of the blade of a motorgrader, said miniature representation being controlled by a single hand of the operator, said miniature representation including a blade representation which is of a shape to visually identify the blade representation as controlling the blade of the grader, said blade representation being movable in a sliding manner to control a corresponding slide movement of the blade, said visually identifiable blade representation also being rotatable about a normally vertical axis to adjust the angle of the blade relative to the grader frame, said visually identifiable blade representation also controlling high lift cylinders of the grader blade by moving of the visually identifiable blade representation in the vertical plane to control the height of the grader blade and angle of the grader blade in the vertical plane by adjustment of high lift cylinders of the motor grader, whereby the operator adjusts the position of the blade of the motor grader by adjustment of the position of the miniature representation of the motor grader support arrangement.