Planting – Drilling – Frame and planting-element arrangement
Patent
1988-02-22
1989-07-11
Johnson, Richard J.
Planting
Drilling
Frame and planting-element arrangement
111926, 111927, 172310, 1726245, A01C 708
Patent
active
048460842
ABSTRACT:
A leveling linkage is provided on a planter unit of a planter implement. Each planter unit includes a leveling spring for supporting a back end of the plant unit in its raised, transport position. The leveling linkage is connected to a mounting bracket and a draft frame of the planter unit, which move relative to each other when the implement is raised and lowered. The leveling linkage extends the leveling spring when the implement is in its transport position and retracts the leveling spring when the implement is in its work position.
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Johnson Richard J.
Thompson Jeffrey L.
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