Forward-folding, winged, implement frame
AssigneeKinze Manufacturing, Inc.
InventorsAlan F. Barry, Harry C. Deckler
Life of this patent
Estimating the term…
Abstract
An improved frame for a drawn agricultural implement, such as a planter, includes a central main frame which is extensible. As the main frame extends, the wing sections fold forwardly. When the wing sections fold to a predetermined position, positioning links act to pull the main wheel set, which is mounted to a carriage and supports the rear of the central main frame, forwardly so that the down load on the hitch is reduced. Conversely, during the unfold cycle, after the wing sections have unfolded to a predetermined position, as unfolding continues, the positioning links urge the carriage and main wheel set toward the rear of the main frame to the field use position. A hydraulic circuit for folding, unfolding and preparing the implement for transport is also disclosed.
Claims14
An agricultural implement carrier comprising:
- a main frame having forward and rear members extensible and retractable relative to each other in the direction of travel and main support wheel means mounted to said rear member for sliding movement between forward and rear positions;
- first power means for selectively extending and retracting said forward and rear members of said main frame;
- first and second wing frames, each mounted to the rear of said main frame for swinging movement between a use position and a folded position;
- second power means for moving said first and second wing frames between said use and folded positions;
- and
- positioning means responsive to the movement of said wing frames from the use position to the folded position for moving said main support wheel means to said forward position on said rear member of said main frame;
- said positioning means being further responsive to the movement of said wing frames from the folded position to the use position for moving said main support means wheel to said rear position on said rear member of said main frame.
An agricultural implement comprising:
- a main frame elongated in the direction of travel and including a forward frame member adapted to connect to a hitch of a draft vehicle and a rear frame member mounted to said forward frame member for relative longitudinal motion between an extended and a retracted position;
- a wheel axle including ground support wheels mounted on said main frame for sliding motion therealong between a rear and a forward position;
- first and second wing sections pivotally mounted at their respective inboard ends to said main frame for swinging movement about associated swing axes between a field use position in which said wing sections are aligned in a direction transverse of the direction of travel, and a folded position in which said wing sections are generally parallel to each other and extend in the direction of travel;
- first and second folding links, each having a forward end connected to said forward frame member and a rear end connected respectively to said first and second wing sections respectively, whereby as said main frame is extended, said wing sections pivot forwardly to said folded position and as said main frame is retracted, said wing sections are rotated rearwardly to said field use position;
- and
- means responsive to the rotation of said wings from said use position toward said transport position for sliding said wheel axle forwardly on said main frame such that said wheel axle is located in said forward position for transport, thereby to reduce the tongue weight on said tractor hitch.
An agricultural implement comprising:
- a main frame having forward and rear members extensible and retractable in the direction of travel and main support wheel means slidably mounted to said rear member for movement between forward and rear positions;
- first and second wing frames, each pivotally mounted to said rear member of said main frame for swinging between a field use position and a folded transport position;
- tools mounted on each of said wing frames;
- first power means for selectively extending and retracting said main frame;
- second power means for opening said wing frames to the field use position and for closing said wing frames to the transport position in synchronization with the retraction and extension of said main frame by said first power means respectively;
- and
- positioning means for moving said main support wheel means to said forward position on said main frame when said wing frames are moved to said folded position.
Dependencies are inferred from the claim text.