Patent ID: 6032746
Filing Date: 2000-03-07
Classification: E02F

Abstract:
A bogie for controlling up and down movement of a ground-contacting blade attached to a three point hitch at a rear of a tractor, said hitch having an upper link and a pair of lower links, said bogie comprising: an articulated frame having a pair of spaced side rails each of which having means for connection to a separate said lower link; an intermediate arm supported by said side rails and having forward and rear segments, said forward segment having means for connection to said upper link and said rear segment being attached at one end to said forward segment and at the opposite end to a post, said rear segment being pivotal upwardly from an operative to an inoperative position, the longitudinal axis of said rear segment when in the operative position being aligned with the longitudinal axis of said forward segment, said post being generally vertical when said rear segment is in said operative position; a wheel assembly including a castor connected to a rod mounted for swivelling in a sleeve; a pair of horizontally spaced lower and upper links interconnecting said post and said sleeve.