Cutterbar adjustment support for a crop harvesting header
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United States of America Patent
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-
Nov 8, 2011
Grant Date -
Sep 29, 2011
app pub date -
Nov 17, 2010
filing date -
Mar 29, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system for supporting a cutterbar of a crop harvesting header includes an adjustment assembly including a first arm pivotably secured to the header. The first arm includes a first portion configured to support the cutterbar, and a second portion including a torsion device having a mass of elastic material connected to the adjustment assembly. The second portion is configured to be pivotably rotatable about a first axis by the adjustment assembly to selectably increase or decrease a force appliable to the first portion in order to raise or lower the first portion with respect to the header. The system further includes a connecting lever having one end pivotally connected to an interconnecting member and another end coupled to the second arm, wherein the connecting lever has a pivot portion for rotation about a second axis, the second axis is perpendicular to the first axis.
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