Rearwardly folding agricultural implement with extendable transport wheels
AssigneeInternational Harvester Company
InventorsClark H. Forsyth, Anton H. G. Van Hooydonk, Harold D. Ralph
Life of this patent
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Abstract
An implement that includes a central subframe, a center frame, a pair of wing frames pivotally connected to the ends of the center frame for movement between a transversely aligned operating position and a rearwardly folded transport position, and a set of extendable transport wheels mounted on the rear end of the subframe generally adjacent the wing transport wheels, wherein the noted transport wheels provide the sole ground contact of the implement during transport for desirable handling characteristics.
Claims9
In a pull-type ground working implement of the type having a center frame, a pair of wing frames that are adapted to carry ground working tools, with each said wing frame being pivotally connected to an end of said center frame for movement between an operating position wherein said frames are transversely aligned, to a generally vertical position, and then to a transport position in which the wing frames are pivoted rearwardly, wherein the improvement comprises:
- a subframe that is adapted to carry ground working tools, said subframe supporting said center frame and having a front end adapted to be connected to a tractor, the other end of said subframe extending rearwardly of said center frame;
- a set of operating wheels swingably mounted on said subframe for selective movement to an extended ground engaging position to support the implement in the operating position and to a retracted position for transport;
- an operating wheel swingably mounted on each said wing frame for selective movement to a ground engaging position to support the wing frame thereof in the operating position;
- a combination operating and transport wheel mounted on each said wing frame to support the wing frame thereof in the operating position and in movement to, and in the transport position;
- latch means for latching said wing frames to said subframe in the transport position;
- and a set of transport wheels mounted on said subframe rearward of said subframe operating wheels, said subframe transport wheels being swingably mounted for movement from a retracted position during operating, to an extended position for transport, said subframe transport wheels being located generally adjacent said combination wheels in the transport position and providing with said combination wheels the only ground support for said implement in the transport position, thereby resulting in desirable handling characteristics.
Dependencies are inferred from the claim text.