Patent ID: 6343661
Filing Date: 2002-02-05
Classification: A01C,A01M

Abstract:
A suspension system for supporting an implement on a work vehicle, said system comprising:a linkage mechanism adapted for pivotal connection between the work vehicle and the implement and adapted to pivot in such manner as to permit relative upward and downward movement between the vehicle and the implement while maintaining a controlled or selected orientation between them; a hydraulic actuator capable of extending and retracting and adapted to interact between the work vehicle and the implement when in use so as to effect the pivotal motion of said linkage mechanism and relative motion between the vehicle and implement in at least one direction, said hydraulic actuator being connected at one end to said linkage mechanism; and a shock absorber adapted to be interposed between said hydraulic actuator and one of the work vehicle and the implement for absorbing shock loadings tending to pass between the vehicle and the implement via said hydraulic actuator when in use regardless of the degree of extension or retraction of said actuator.