Hinge for vertically folding wing section of agricultural implement
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United States of America Patent
Stats
-
May 8, 1990
Grant Date -
N/A
app pub date -
Sep 6, 1989
filing date -
Sep 6, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A folding mechanism for the wing section of an agricultural implement frame includes a main hinge interconnecting the wing section to the center section for pivotal motion about a horizontal axis. A hydraulic cylinder is pivotally connected at the butt end to the center frame section and at the rod end to a pivot juncture between a locator link and a push link. When the hydraulic cylinder is extended, the push link forces the wing section to rotate to the folded position; and the locator link guides the movement of the pivot juncture into an over-center, locked position so that the wing section will remain in the transport position even if hydraulic pressure is lost.
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Cited Art Landscape
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