Beet harvester hitch

Claim 2

A hitch for beet harvesters and the like for attachment to a tractor, comprising a hitch frame spanning the width of the harvester and having rearwardly extending outer ends for attachment to the harvester, the hitch frame also having a rigid transverse beam connecting the outer ends together, the beam having side portions extending obliquely of each other and forwardly, and converging on each other at an apex, the side portions of the transverse beam having front faces occasionally engaged by the tractor tires during turning of the tractor, a fore and aft extending hitch bar with a front end with a pivot adapted for attachment to the drawbar of such a tractor, the hitch bar traversing the apex of the transverse beam and having a pivot connecting the hitch bar to the transverse beam adjacent the apex thereof for transverse and generally horizontal swinging relative to the hitch frame, the rear end of the bar being disposed significantly behind the apex, and a hydraulic steering cylinder extending transversely of the hitch bar and being pivotally connected to one side portion of the beam and to the hitch bar adjacent the rear end thereof, the cylinder being disposed entirely behind the front face of said one side portion of the beam.

Claim 3

A beet harvester to be towed by a tractor and having in combination, a beet harverster frame, beet handling mechanism including a plurality of pairs of beet lifting wheels to travel along the rows of beets in the field, a hitch frame spanning the width of the harvester frame and having rearwardly extending outer ends attached to the harvester frame for drawing the harvester forwardly in the field and steering the harvester from side to side to maintain the lifting wheels in precision relationship with respect to the rows of beets in the field, the hitch frame also having a rigid transverse beam connecting the outer ends together, the beam having side portions extending obliquely of each other and forwardly, and converging on each other at an apex, the side portions of the transverse beam having front faces occasionally engaged by the tractor tires during turning of the tractor, a fore and aft extending hitch bar having a front end with a pivot adapted for attachment to the drawbar of such a tractor, the hitch bar traversing the apex of the transverse beam and having a second pivot connection the hitch bar to the transverse beam adjacent the apex thereof for transverse and generally horizontal swinging relative to the hitch frame, the rear end of the bar being disposed significantly behind the apex of the beam, and a hydraulic steering cylinder extending transversely of the hitch bar and being pivotally connected to one side portion of the beam and also being pivotally connected to the hitch bar adjacent the rear end thereof, the hydraulic steering cylinder being extensible and retractable to produce limited swinging of the hitch bar with respect ot the transverse beam for steering the lifting wheels with respect to the rows of beets, and the cylinder being disposed entirely behind the front face of said one side portion of the beam to prevent any engagement of the cylinder by the tractor tires during turning of the tractor.

Claim 4

A beet harvester to be towed by a tractor and having in combination, a beet harverster frame, beet handling mechanism including a plurality of pairs of beet lifting wheels to travel along the rows of beets in the field, a hitch frame spanning the width of the harvester frame and having rearwardly extending outer ends attached to the harvester frame for drawing the harvester forwardly in the field and steering the harvester from side to side to maintain the lifting wheels in precision relationship with respect to the rows of beets in the field, the hitch frame also having a rigid transverse beam connecting the outer ends together, the beam having side portions extending obliquely of each other and forwardly, and converging on each other at an apex, the side portions of the transverse beam having front faces occasionally engaged by the tractor tires during turning of the tractor, a fore and aft extending hitch bar having a front end with a pivot adapted for attachment to the drawbar of such a tractor, the hitch bar traversing the apex of the transverse beam and having a second pivot connection the hitch bar to the transverse beam adjacent the apex thereof for transverse and generally horizontal swinging relative to the hitch frame, the rear end of the bar being disposed significantly behind the apex of the beam, and a hydraulic steering cylinder extending transversely of the hitch bar and being pivotally connected to one side portion of the beam and also being pivotally connected to the hitch bar adjacent the rear end thereof, the hydraulic steering cylinder being extensible and retractable to produce limited swinging of the hitch bar with respect ot the transverse beam for steering the lifting wheels with respect to the rows of beets, and the cylinder being disposed entirely behind the front face of said one side portion of the beam to prevent any engagement of the cylinder by the tractor tires during turning of the tractor.