Patent ID: 6220366
Filing Date: 2001-04-24
Classification: A01B

Abstract:
A folding agricultural implement having a transversely extending central frame supported a distance above the ground, wing sections pivotally supported from opposite outer ends of the central frame for movement between an outwardly extending field-working position and a folded transport position over the central frame, lift assemblies connected to the wing sections and movable between extended working and retracted positions, the lift assemblies projecting towards each other when the wing sections are in the folded transport position, an implement control unit connected to the lift assemblies and controlling extension and retraction of the lift assemblies, wing position transducers connected to the implement control unit and responsive to movement of the wing sections between the field-working and transport positions and providing position signals to the implement control unit, and wherein the implement control unit is responsive to the position signals to retract the lift assemblies prior to the wing sections reaching the folded transport position to thereby prevent lift assembly interference in the transport position.