Patent ID: 6195973
Filing Date: 2001-03-06
Classification: A01D,F16D,Y10S

Abstract:
In an agricultural machine having at least two working elements which are carried by intermediate frames arranged on a support frame and supported on the ground by at least one land wheel; the improvement comprising:means pivotally connecting said intermediate frames for tracking the contours of the ground as picked up by the land wheels, and for pivoting about axes which extend in the direction of travel between a working position and a transportation position;a drive train including transmission members supported on said intermediate frames, each transmission member having an end adjacent the pivotally connecting means;a first coupling unit at the end of one transmission member, a second coupling unit at the end of the transmission member adjacent said one transmission member, said first and second coupling units having intermeshing elements;one of said coupling units having a plurality of finger-like meshing elements whose axes extend horizontally in the direction of the transmission members, the other of said coupling units having a plurality of radially-extending meshing elements which intermesh with the finger-like meshing elements; andmeans mounting at least one of the coupling units for axial displacement along its transmission member and constructed and arranged so as to effect a reduction in the drive load transferred via the meshing elements when one of the coupling units is pivoted toward the ground or toward its transportation position.