Self-leveling four-bar linkage for suspending a header of an agricultural implement
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United States of America Patent
Stats
-
Dec 18, 2012
Grant Date -
May 31, 2012
app pub date -
Feb 3, 2012
filing date -
Oct 30, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A suspension system for agricultural implements having at least one floating head using a four-bar linkage and permitting the floating head to accommodate variations in ground surface elevation in a lateral or transverse direction. By permitting the floating head to float, a more consistent cutting height is realized when ground surface elevation varies in a transverse direction. A main frame is provided to which the ground engaging wheels are attached. A sub-frame is connected to the main frame via the four-bar linkage. The sub-frame is pivotally attached to the arms of the four-bar linkage by spherical bearings.
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