Patent ID: 7647755
Filing Date: 2010-01-19
Classification: A01B

Abstract:
1. A pull-type crop harvesting machine comprising: a frame mounted on ground wheels for movement across ground carrying a standing crop for harvesting; a header mounted across a front of the frame so that the frame carries the header into the standing crop for cutting the standing crop and converging the cut crop into a crop discharge; a hitch arm extending from the frame to a forward end of the hitch arm arranged for attachment to a hitch coupling of a tractor by which the frame and the header are towed across the ground; the hitch arm being connected to the frame by a pivot coupling arranged to provide pivotal movement about a generally upright axis so that the hitch arm is movable between a first position and a second position; and a hydraulic cylinder connected so as to actuate movement of the hitch arm relative to the frame between the first and second positions, the cylinder comprising: the hitch arm and the frame being arranged such that the first position of the hitch arm is defined by the piston reaching the first end of the cylinder body and such that the second position of the hitch arm is defined by the stop member reaching the first end of the cylinder body.