Front and rear ground sensing for header pitch control
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United States of America Patent
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Nov 11, 2014
Issued Date -
N/A
app pub date -
Dec 27, 2012
filing date -
Dec 28, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A harvesting header and feederhouse for use with a crop harvesting machine has a feederhouse interface at a distal end of the feederhouse and a header frame. The header frame has a top beam, a bottom beam, and first and second vertical main structures connecting the top and bottom beams. The feederhouse interface and the vertical main structures of the header frame are pivotably connected to enable the header frame to pivot with respect to the feederhouse interface. At least one hydraulic ram connects between the feederhouse interface and the header frame to pivot the harvesting header on the feederhouse to a desired fore/aft pitch angle. A hydraulic supply provides hydraulic fluid to the hydraulic ram. Front and rear ground sensors provide an output that is used to control the fore/aft pitch angle of the harvesting header relative the ground by pivoting the header frame relative the feederhouse interface.
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