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US 9,801,324 B2Granted
Bi-fold tool bar linkage
AssigneeNorwood Sales, Inc.
InventorTom Lykken
Life of this patent
Estimating the term…
Abstract
A farm implement having rotatable wings rotatably connected to a main carrier and also having a folding bar linkage, which folds as the corresponding wing is rotated into a stowed position and extends as the wing rotates into a deployed position. A fixed length control bar rotatably linking a tow bar of the folding bar linkage to the main carrier controls the folding and unfolding of the bar linkage as the wing rotates between the deployed and stowed positions.
Claims17
A farm implement, comprising:
- a main carrier comprising a telescoping element movable between an extended position and a retracted position;
- a first wing rotatably connected to the main carrier such that the first wing is rotatable relative to the main carrier between a deployed position and a stowed position;
- a first bar linkage comprising:
- a first tow bar rotatably connected to the telescoping element,
- a first gate rotatably connected to the first wing, and
- a first hinge rotatably connecting the first tow bar to the first gate;
- and
- a first control bar rotatably connected to the main carrier at a first end and rotatably connected to the first tow bar at a second end such that moving the telescoping element into the retracted position unfolds the first bar linkage to rotate the first wing into the deployed position and moving the telescoping element into the extended position folds the first bar linkage to rotate the first wing into the stowed position.
5 more elements
A system for extending a first wing, comprising:
- a main carrier comprising a telescoping element movable between an extended position and a retracted position, wherein the first wing is rotatably connected to the main carrier;
- a first bar linkage comprising:
- a first tow bar rotatably connected to the telescoping element,
- a first gate rotatably connected to the first wing, and
- a first hinge rotatably connecting the first tow bar to the first gate;
- and
- a first control bar rotatably connected to the main carrier at a first end and rotatably connected to the first tow bar at a second end such that moving the telescoping element into the retracted position unfolds the first bar linkage to rotate the first wing into a deployed position and moving the telescoping element into the extended position folds the first bar linkage to rotate the first wing into a stowed position.
4 more elements
Dependencies are inferred from the claim text.