Agricultural toolbar apparatus, systems and methods
AssigneePrecision Planting LLC
InventorsGregg A. Sauder, Dale M. Koch
Life of this patent
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Abstract
Systems, methods, and apparatus for shifting weight between a tractor and toolbar and between sections of the toolbar, for controlling operative height of a toolbar and sections of a toolbar and for folding a toolbar between a work position and a transport position. A ground engaging wheel and an actuator are coupled to the toolbar. In one embodiment, a fluid control system is responsive to a command signal to modify the actuator pressure such that the actuator pressure corresponds to a desired pressure.
Claims20
An agricultural planter comprising:
- a toolbar;
- a plurality of planter row units attached to the toolbar by parallel arm linkages, wherein each row unit comprises:
- a row unit frame;
- and
- an opener disc assembly mounted to the row unit frame;
- and
- a height sensor attached to at least one of the plurality of planter row units, the height sensor configured to determine a height of at least one of the opener disc assemblies relative to the toolbar.
A method of adjusting a height of an agricultural planter comprising a toolbar, a plurality of planter row units attached to the toolbar with parallel arm linkages, and a height sensor attached to at least one of the plurality of planter row units, the method comprising:
- determining a height with respect to a soil surface of at least one opener disc assembly mounted to a row unit frame of the at least one of the plurality of planter row units using the height sensor;
- and
- comparing the determined height with a reference height.
Dependencies are inferred from the claim text.