Abstract: An agricultural implement having an infeed cutter includes a plurality of knives and at least one knife-sharpening assembly. The knives are mounted on shiftable knife beds that swing into and out of an operating position. The beds are laterally slidable in opposite directions to provide access to the knives. The knife-sharpening assembly includes a hood and a plurality of sharpening stones mounted on a shaft that moves along a path corresponding to the shape of the cutting edges of the knives, meaning the sharpening stones preferably follow the substantially arcuate contour of the uppermost edges of the knives during the course of sharpening. The hood is configured to contain any sparks produced by the interaction between the stones and knives. The knife beds and sharpening assemblies are configured such that sufficient ground clearance for travel of the agricultural vehicle is available during sharpening of the knives.

Abstract: A harvesting header and feederhouse for use with a crop harvesting machine has a feederhouse interface at a distal end of the feederhouse and a header frame. The header frame has a top beam, a bottom beam, and first and second vertical main structures connecting the top and bottom beams. The feederhouse interface and the vertical main structures of the header frame are pivotably connected to enable the header frame to pivot with respect to the feederhouse interface. At least one hydraulic ram connects between the feederhouse interface and the header frame to pivot the harvesting header on the feederhouse to a desired fore/aft pitch angle. A hydraulic supply provides hydraulic fluid to the hydraulic ram. Front and rear ground sensors provide an output that is used to control the fore/aft pitch angle of the harvesting header relative the ground by pivoting the header frame relative the feederhouse interface.

Abstract: A harvesting header frame has a top beam, a bottom beam, and a diagonal truss member. A first end of said diagonal truss member is structurally connected to the top beam and an opposing second end of said diagonal truss member is structurally connected to the bottom beam. The header frame also has a diagonal truss length adjustment mechanism that adjusts the length of the diagonal truss member to selectively lengthen or shorten the effective length of the diagonal truss member to modify the concavity of the header frame after the top and bottom beams and diagonal truss member have been connected. In one embodiment, the diagonal truss length adjustment mechanism is a telescoping compression member.

Abstract: A windrower with a harvesting header with a crop cutting assembly for severing crop from the ground windrower has a header pitch sensor for measuring a fore/aft pitch angle and a hydraulic system. The hydraulic system moves the header between an operating height and a raised position, and also controls a fore/aft pitch angle. An electronics control module provides an output to activate solenoid valves in the hydraulic system to move the header between the operating height and the raised position and to select a desired pitch angle. When the header moves from the operating height to the raised position, the electronics control module operates the header hydraulic system to move the header to the zero-tilt condition, and upon lowering the header back the operating height, the electronics control module automatically returns the header to the selected pitch angle it was in at the start of the cycle.

Abstract: A harvesting header includes a header frame, a flexible cutterbar assembly attached to the header frame, a draper assembly supported behind the cutterbar assembly for conveying severed crop materials received from the cutterbar assembly, and a plurality of laterally spaced apart support arms attached to and cooperatively supporting the flexible cutterbar assembly, with each support arm being pivotal about a lateral axis. The header further includes stop structure corresponding with each of the support arms, with the stop structure located forwardly of the lateral axis and defining a limited range of angular support arm movement.

Abstract: A grain bin located atop a harvester includes upstanding walls having a substantially continuous upper edge defining an opening. A grain bin extension is deployable between extended and refracted positions to expand the capacity of the grain bin. The extension includes extension panels and a cap overlaying the opening. The cap is supported by a cap frame that is also deployable between extended and refracted positions. An extension deployment apparatus raises and lowers the extension panels. Extension deployment mechanisms located at opposing corners of the grain bin control the deployment of adjacent extension panels. Each extension deployment mechanism has a first rack and a trunion to drive extension panels in a vertical direction and pivot the panels in an outward direction and a second rack mounted to the trunion to drive the cap frame in a vertical direction, and a dive gear between the first and second racks.

Abstract: A strip tillage implement for movement over a crop berm has a frame configured to carry a coulter, a row cleaner, a shank and closing discs. The implement includes a basket assembly located behind the closing discs having a downwardly and rearwardly directed basket drawbar that forks into left and right support arms. The basket assembly includes a left basket half section rotatably attached to the left support arm and a right basket half section rotatably attached to the right support arm of the basket drawbar in cantilever fashion. Each of the basket half sections includes a support plate and a plurality of clod-breaking tines spaced about the periphery of the plate. Each plate is substantially perpendicular to the axis of its respective support arms such that the two plates form an upwardly diverging angle with the drawbar acting between the basket half sections to clean residue collected between the half sections.

Abstract: An active noise cancellation fault detector (NCFD) is presented that is configured to cancel normal machine noise in an operator cabin, while allowing noise associated with a machine failure mode to remain so that an operator can hear when a machine component is beginning to fail or is in a failure mode. An NCFD can generate a model waveform of normal noise scaled to machine operating parameters. The model waveform can be inverted and adjusted in gain and phase to provide a cancellation waveform. The invention can be configured to determine operator location within a machine cab so that cancellation signals can be configured with the proper phases to destructively interfere with normal machine noise within a quiet zone or noise suppression envelope around an operator. Noise within the quiet zone can be detected and compared to various fault waveforms to determine whether a machine component is beginning to fail.

Abstract: Methods, systems and apparatus are presented that can warn a machine operator of an object in a machine path when an operator is not looking in the machine travel direction. A situational awareness detector (SAD) can be configured to determine operator orientation and operator sight direction or field of view. A SAD can be configured to determine machine or implement travel path and whether an object of interest such as a boundary, pond, rock pile, etc. is positioned within the travel path. By comparing operator line of sight or field of view with machine and/or implement travel path, a SAD can determine operator awareness of the object in the travel path. If an operator is unaware of the object, an alert can be provided. If a determination is made that an operator is aware of an object, a system of the invention can refrain from providing an alert.

Abstract: An agricultural implement having an infeed cutter is operable to automatically accommodate large objects that pass through the infeed cutter and detect and counteract jams that occur or might otherwise occur in the infeed cutter. The implement includes a plurality of knives mounted on a vertically moveable knife bed. The bed is associated with a hydraulic load-sensing system that is operable to lower the bed if a load threshold has been reached and raise the bed when the load has decreased sufficiently. Each knife is also associated with a hydraulic load-sensing system that is operable to lower the respective knife if a load threshold has been reached and raise the respective knife when the load has decreased sufficiently.

Abstract: In one embodiment, a stuffer chute assembly comprising: a duct defining a passageway, the duct having a lower inlet opening and an upper outlet opening, the duct comprising a lower surface with plural slots located proximal to the upper outlet; plural rotating devices arranged transversely across the duct, the plural rotating devices extending at least partially both through the plural slots and into the passageway, each of the plural rotating devices comprising plural fingers along the circumference of the rotating device to engage crop material in the duct; and a sensor coupled to at least one of the plural rotating devices, the sensor configured to sense a parameter corresponding to density of the crop material in the duct.

Abstract: In one embodiment, a control method for a multi-mode steerable 3-point hitch coupled to a work machine, the hitch comprising a pivotal hitch frame and a hitch support structure affixed to a chassis of the work machine, the hitch frame coupled to first and second draft arms and the hitch support structure coupled to a pair of steering cylinders that are coupled to the hitch frame, the control method comprising: receiving a signal corresponding to one or more parameters; and responsive to the one or more parameters reaching or exceeding a respective threshold value, automatically causing the plural steering cylinders to switch between the non-articulated mode and the multi-mode, the multi-mode including articulation and draft sway motion of the hitch.

Abstract: In one embodiment, a camless pickup assembly comprising a cam independent, rotatable reel having a plurality of tines affixed thereto and spaced apart from each other by a respective predefined first gap radially on the reel and spaced apart by a respective predefined second gap transversely across the reel; and a plurality of tine wrappers distributed transversely along the reel and occupying each of the respective second gaps, wherein a first of the plurality of tines is configured to extend past a plane of the tine wrapper surface according to a substantially constant length throughout a first arc of rotation and a second of the plurality of tines is configured to extend past the plane of the tine wrapper surface according to a gradually decreasing length throughout a second arc of rotation, the second of the plurality of tines spaced radially from the first of the plurality of tines by the predefined first gap.

Abstract: A rotary conditioning header has upright end panels that project forwardly from opposite ends of the rotary cutter bar. A top panel structure spans the end panels across their upper ends to define a crop receiving space between the end panels and beneath the top panel structure that is open at the front to define a mouth into the header. An upright rotary shear on at least one of the ends panels is located within the crop receiving space at the edge of the mouth but is exposed at the front such that its forwardmost cutting extremity is generally aligned with but underneath a transverse lean bar across the front edge of the top panel structure. The rotary shear severs and separates tangled crop stalks in the vicinity of the end panel to enable the stalks to be properly acted upon by the lean bar and received into the mouth.

Abstract: A caster wheel assembly selectively providing steering assist includes a pivoting shaft coupled with a caster wheel with an engagement lug connected to the shaft in a fixed manner. A steering arm selectively engages the engagement lug to couple the steering arm and engagement lug so that pivoting motion of the steering arm is transferred to the engagement lug. A turn assist cylinder connects to an outward end of the steering arm and an engagement mechanism acting upon the steering arm for engaging the steering arm with the engagement lug. When engaged, the steering arm is coupled with the engagement lug such that the turn assist cylinder pivots the shaft and caster wheel. When disengaged, the steering arm is uncoupled with the engagement lug such that the shaft and caster wheel are free to pivot independent of the turn assist cylinder.

Abstract: A harvesting machine includes a harvesting header with a header frame, a flexible cutterbar assembly attached to the header frame along the length thereof and configured to cut a crop, a plurality of laterally spaced apart support arms, a conveyor assembly, and a cutterbar drive. The support arms are pivotally coupled to the frame for swinging movement about a laterally extending axis so that the flexible cutterbar assembly is operable to flex along the length thereof in response to changes in terrain as the header is advanced. The cutterbar drive includes a drive element and a forward gearbox drivingly connected between the drive element and the cutterbar assembly. The forward gearbox is supported on an outer support arm.

Abstract: A working vehicle has a castor wheel assembly selectively providing steering assist. A pivoting caster spindle coupled with a caster wheel and an engagement plate connected to the caster spindle in a fixed manner such that the engagement plate pivots with the caster spindle. A pivoting steering arm is rotatably connected to the caster spindle and a steering cylinder is connected to an outward end of the steering arm with a tie rod configured to pivot the steering arm. A keyed connecting mechanism selectively couples the steering arm with the engagement plate. In an engaged position, the keyed connecting mechanism couples the steering arm with the engagement plate such that the steering cylinder pivots the caster spindle and caster wheel. In a disengaged position, the steering arm is uncoupled with the engagement plate such that the caster spindle and caster wheel are free to pivot independent of the steering cylinder.

Abstract: The airflow through a harvesting machine is adjusted by calculating a G-factor at a first point on an upper chaffer to determine if it is greater than 1+n, where n represents a desired factor. A blower is adjusted to reduce an airstream if the G-factor is greater than 1+n. A MOG factor is calculated if the G-factor is less than 1+n. The blower is adjusted to increase the airstream if the MOG-factor is less than 1+x, where x represents a desired factor. A MOG-factor is calculated at a second point if the MOG-factor at said the point is greater than 1+x and the blower is adjusted to reduce the airstream if the MOG-factor at the second point is greater than 1+y, where y represents a desired factor or adjusted to increase the airstream if the MOG-factor at the second point is less than 1+y.

Abstract: A grain cart has a lower frame supported by an axle with a pair of wheels attached thereto and a grain storage hopper. The grain storage hopper includes a substantially vertical front wall, a substantially vertical rear wall, and left and right sidewalls. At least one trough extends along the bottom of the hopper and a sump is positioned below a central portion of the at least one trough, wherein the trough opens into the sump to permit the flow of grain from the trough into the sump. At least one horizontal auger, having a shaft and helical flighting, is rotatably secured in the at least one trough, wherein the flighting on one portion of the shaft is configured to move grain in a first direction toward the sump and the flighting on a second portion of the shaft is configured in a reverse orientation so as to move grain in an opposite direction toward the sump such that rotation of the shaft results in material at either end of the hopper moving toward the center of the hopper.

Abstract: A harvesting machine includes a harvesting header with a header frame, a flexible cutterbar assembly attached to the header frame along the length thereof and configured to cut a crop, and a conveyor assembly positioned behind the cutterbar assembly and operable to receive severed crop material from the cutterbar assembly. The conveyor assembly includes a fore-and-aft draper with a draper frame swingably supported on the header frame at a pivot where the draper frame projects forwardly from the pivot, such that the draper frame is operable to swing relative to the header frame. The fore-and-aft draper includes a draper belt supported on the draper frame to present a rearwardly moving run for conveying the crop rearwardly.