Abstract: A header (102) for an agricultural harvester (100) comprising a frame (104), a cutter bar (106), a draper belt and a cutter bar support sub-assembly connected to the frame is disclosed. The cutter bar support sub-assembly generally includes a draper support sub-assembly (200A,200B) and a support arm subassembly. The draper support sub-assembly is pivotably connected to the support arm sub-assembly and pivotable about a longitudinal axis of the support arm sub-assembly. The draper support sub-assembly includes a first draper support (608) that includes a curved surface engaging the draper belt and a cutter bar mount (606) supporting the cutter bar. The support arm sub assembly includes a support member connected to the frame.

Abstract: A draper platform for mounting on a feeder house of an agricultural combine may include a frame, a center belt conveyor to carry cut crop material rearwardly towards a center opening in the frame through which crop may be fed into a feeder house, a left side belt conveyor to carry cut crop material to the center belt conveyor, a right side belt conveyor to carry cut crop material to the center belt conveyor, at least one elongate reciprocating knife assembly extending along a front edge of each of the center belt conveyor, the left side belt conveyor and the right side belt conveyor, a left side top cross auger above the left side belt conveyor, the left side top cross auger having a right inner end, a right side top cross auger above the right side belt conveyor, the right side top cross auger having a left inner end opposite to and spaced from the right inner end and a conveyor drum above the center belt conveyor below a space between the right inner end and the left inner end.

Abstract: A draper platform for mounting on a feeder house of an agricultural combine may include a frame, a center belt conveyor to carry cut crop material rearwardly towards a center opening in the frame through which crop may be fed into a feeder house, a left side belt conveyor to carry cut crop material to the center belt conveyor, a right side belt conveyor to carry cut crop material to the center belt conveyor, at least one elongate reciprocating knife assembly extending along a front edge of each of the center belt conveyor, the left side belt conveyor and the right side belt conveyor, a conveyor drum above the center belt conveyor and a central roller baffle. The central roller baffle may include a rotatable support rotatably supported above the conveyor drum and a crop driver removably mounted to the rotatable support.

Abstract: A draper belt system is provided that includes a first draper belt assembly with first and second rollers, and a second draper belt assembly with third and fourth rollers. The third roller of the second draper belt assembly is disposed adjacent to the first roller of the first draper belt assembly. The first draper belt assembly is configured to pivot relative to the second draper belt assembly. Pivoting of the first draper belt assembly results in a change in a distance between the first and third rollers.

Abstract: A harvesting attachment for a harvester comprises a frame which includes a rear wall and a base wall. The frame is formed as an extrusion profile.

Abstract: A grain header has a frame with a cutter bar affixed to the frame. A sub-frame is pivotably coupled to the frame and a mower cutter bar is coupled to the sub-frame. A swather is coupled to the sub-frame and arranged rearward relative to the mower cutter bar. A deflector is disposed between the cutter bar and the mower cutter bar. The deflector is moveable between a raised position in which the deflector permits crop material cut by the mower cutter bar to pass onto the swather, and a lowered position in which the deflector inhibits crop material cut by the mower cutter bar from passing onto the swather.

Abstract: A modular gathering platform for grain harvesters is provided for coupling to the front of a grain harvester or processor which can gather plants previously prepared in one or more rows by at least one central belt conveyor with functional side by side coupling to other equal harvesting conveyor belts. The platform includes a transversal mounting structure having an internal opening, at least one central harvesting conveyor belt having front and rear extremities and two side couplings, additional harvesting conveyor belts coupled to the sides of the central belt, an anti-jamming roll and a rotating guiding roll. The central harvesting conveyor belt and additional side harvesting conveyor belts, the anti-jamming rolls, and the guiding roll are synchronized by an actuation assembly, and the guiding roll moves the harvested plants towards the exit. The platform advantageously allows for the gathering of a crop that has been prepared in rows.

Abstract: A control system (210) is provided for an agricultural harvester (200), the agricultural harvester (200) having an agricultural harvesting vehicle (202) and a harvesting head (204) mounted thereon, the harvesting head (204) further comprising a left side endless belt conveyor (214) driven by a left conveyor motor (312), a right side endless belt conveyor (218) driven by a right conveyor motor (310) and a center endless belt conveyor (220) driven by a center conveyor motor (314), the control system (210) comprising an electronic controller (300) configured to receive an electronic signal indicative of a roll angle of the harvesting head (204), and to electronically change a relative speed of at least one of the right conveyor motor (310) and the left conveyor motor (312) based at least upon the electronic signal indicative of a roll angle of the harvesting head (204).

Abstract: A header is formed with a middle section disposed on a main frame and at least two side sections disposed adjacent to the middle section on the main frame (2). A finger bar extends across the width of the header. At least one conveyor device (5) is disposed behind the finger bar and designed on the respective side sections as an endless conveyor belt. The belt is disposed adjacent to the middle section in order to transport crop cut by the finger bar laterally in the direction of the middle section (3). Drivable conveying elements are disposed on the middle section adjacent to the finger bar and the respective side section. These conveying elements receive and redirect crop discharged onto the middle section by the respective conveyor belts of the side sections.

Abstract: A harvesting machine includes a harvesting header with an adapter, a header frame, a cutterbar assembly attached to the header frame along the length thereof and configured to cut a crop, and a draper assembly positioned behind the cutterbar assembly. The draper assembly includes a fore-and-aft draper that delivers crop material to a feeder house of the harvesting machine. The fore-and-aft draper includes a draper frame swingably supported on the header frame at a pivot to project forwardly therefrom and a draper belt supported on the draper frame to present a rearwardly moving run for conveying the crop rearwardly.

Abstract: A crop ramp (112) for an agricultural harvesting head (100) has a forward portion (212) that is generally planar and has a leading edge (200) that is configured to be fixed the rear of a reciprocating knife (110) and ahead of a leading edge (202) of a conveyor belt of the conveyor (104, 106); and a rear portion (214) that is generally planar and that is fixed to and extends rearward from the forward portion (212), wherein the rear portion (214) is configured to extend over the leading edge (202) of an endless belt of the conveyor (104, 106), where the rear portion (214) has a lower surface (216) that is generally planar and is parallel to an upper surface of the endless belt of the conveyor (104, 106) and has a trailing edge (204), where at least one recess (218) extends into the lower surface (216), where a first end of the recess is upstream of the second end of the recess (218) and wherein the first end of the recess is farther from the trailing edge (204) than the second end.

Abstract: A harvesting machine includes a harvesting header with an adapter, a header frame, a cutterbar assembly attached to the header frame along the length thereof and configured to cut a crop, and a draper assembly positioned behind the cutterbar assembly. The draper assembly includes a fore-and-aft draper that delivers crop material to a feeder house of the harvesting machine. The fore-and-aft draper includes a draper frame swingably supported on the header frame at a pivot to project forwardly therefrom and a draper belt supported on the draper frame to present a rearwardly moving run for conveying the crop rearwardly.

Abstract: A harvesting header includes a header frame, a flexible cutterbar assembly, and a draper assembly. The cutterbar assembly is mounted to the header frame and includes a plurality of skids. Each of the skids has a lower margin configured to engage the ground such that the skids cooperatively cause flexing of the cutterbar assembly along the length thereof in response to changes in terrain as the header is advanced. Each skid presents a skid surface extending from the lower skid margin.

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 draper assembly positioned behind the cutterbar assembly and operable to receive severed crop material from the cutterbar assembly. The draper assembly includes a fore-and-aft draper and side drapers, with at least part of the draper assembly being rigidly supported on the header frame. A center section of the cutterbar assembly is rigidified so as to be restricted from flexing, while the side sections of the cutterbar assembly flex and follow the changes in terrain.

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 draper platform (100) for mounting on a feederhouse of an agricultural combine comprises an elongate reciprocating knife assembly (140) at a forward edge of the draper platform (100). A left side endless belt conveyor (116) is disposed behind the reciprocating knife assembly on the left side of the draper platform (100) and a right side endless belt conveyor (120) is disposed behind the elongate reciprocating knife assembly (140) on the right side of the draper platform (100). A center endless belt conveyor (118) carries the cut crop material rearward towards a central rear aperture (138) in the frame (101). A conveyor drum (136) is mounted above and in front of the central rear aperture (138). Conveyor members (150, 152, 164, 165) are located at crop transition zones (154, 156) between the left side endless belt conveyor (116), and the conveyor drum (136), and between the right side endless belt conveyor (120) and the conveyor drum (136).

Abstract: A harvesting header (100) comprises a frame (101) having a rear aperture (138). Crop is harvested and fed towards and through the rear aperture (138). A conveyor drum (136) is mounted above and in front of the rear aperture (138). The conveyor drum (136) has a cylindrical section (144) and frusto-conical end sections (148) on both ends of the cylindrical section (144). Retractable fingers (146) extend outwards from the cylindrical section (144) and from each frusto-conical end section (148). The retractable fingers (146) extending from the frusto-conical end sections (148) are angled towards the side.

Abstract: A harvesting machine includes a harvesting header with a header frame, a cutterbar assembly attached to the header frame along the length thereof and configured to cut a crop, and a draper assembly positioned behind the cutterbar assembly and operable to receive severed crop material from the cutterbar assembly. The draper assembly includes a center draper that delivers crop material to a feeder house of the harvesting machine and oppositely spaced side drapers that deliver crop material to the center draper. The harvesting header is operable to flex and thereby follow an uneven terrain.

Abstract: A header has a middle section disposed on a main frame, at least two side sections adjacent to the middle section, a rear panel extending perpendicularly to the main frame, a flexible finger bar extending across a width of the header and a conveyor device disposed behind the finger bar. The conveyer device is designed on the side sections as a continuous conveyor belt disposed adjacent to the middle section in order to transport crop cut by the finger bar laterally in the direction of the middle section. The side sections are formed as a plurality of supporting arms swivellably disposed on the main frame that support the finger bar. Each side section has a plurality of supporting elements for supporting the conveyor belt. Each of the supporting elements is supported in a bearing point to be displaceable in the axial direction relative to the main frame.

Abstract: A cutting platform for use with an agricultural harvesting machine includes at least one platform section. Each platform section has a cutterbar assembly movable in a localized manner in upwards and downwards directions, an endless belt with a leading edge, and a plurality of skid shoes. Each skid shoe extends rearwardly from the cutterbar assembly and has an upper surface defining a belt support for the leading edge of the endless belt.

Abstract: A crop harvesting header with a cutter bar and a draper assembly has a draper which includes a front edge of the upper run of the draper arranged at a position adjacent to but spaced from the cutter bar and there is provided a sealing member extending along the cutter bar. The sealing member is co-extruded to form a constant cross-sectional shape along the full length and to define a first portion of a stiffer plastics material attached to the cutter bar and a second blade portion of a more flexible plastics material which extends rearwardly from the first portion at the cutter bar to lie over and in contact with a bead along a front edge portion of the draper.

Abstract: A harvesting machine includes a harvesting header with a header frame, a cutterbar assembly attached to the header frame along the length thereof and configured to cut a crop, and a draper assembly positioned behind the cutterbar assembly and operable to receive severed crop material from the cutterbar assembly. The draper assembly includes a center draper that delivers crop material to a feeder house of the harvesting machine and oppositely spaced side drapers that deliver crop material to the center draper. The harvesting header is operable to flex and thereby follow an uneven terrain.

Abstract: A harvesting attachment for a harvesting machine includes a frame, and the frame includes an outer wall which defines a cavity in which at least one strut is arranged.

Abstract: A draper seal for a crop harvesting header is provided. The header includes a forwardly disposed cutter bar assembly and a rearwardly disposed draper deck assembly. The draper seal includes a flexible strip that runs parallel to the cutter bar assembly and perpendicular to the direction of travel. A bracket secures the forward edge of the flexible strip to an upper surface of the cutter bar assembly, which bracket also biases a rearward edge of the flexible strip into engagement with an upper surface of the draper deck assembly, thereby creating a seal between the cutter bar assembly and the draper deck assembly.

Abstract: A crop harvesting header with a cutter bar and a draper assembly has a draper driven by a drive roller at one end and an idler roller at the other end. The draper is carried on a plurality of support rollers parallel to the first and second rollers for supporting the upper run of the draper at spaced positions therealong. The draper includes a front edge of the upper run of the draper arranged at a position adjacent to but spaced from the cutter bar and there is provided an integral extruded sealing member extending along the cutter bar defining a first stiffer portion attached to the cutter bar and a second flexible blade portion which extends rearwardly from the first portion at the cutter bar to lie over and in contact with a bead along a front edge portion of the draper.

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 draper assembly positioned behind the cutterbar assembly and operable to receive severed crop material from the cutterbar assembly. The draper assembly includes a fore-and-aft draper and side drapers, with at least part of the draper assembly being rigidly supported on the header frame. A center section of the cutterbar assembly is rigidified so as to be restricted from flexing, while the side sections of the cutterbar assembly flex and follow the changes in terrain.

Abstract: A header for an agricultural machine includes a middle section disposed on a main frame and two side sections adjacent the middle section, a flexible knife bar extending across the width of the header and a conveying device behind the knife bar and designed at the side sections as an endless belt disposed adjacent to the middle section for transporting crop cut by the knife bar laterally. The side sections have supporting arms pivotably disposed on the main frame to support the knife bar of a side section and are rigidly connected to the knife bar. Each supporting arm is connected to the main frame permitting swivelling about a first rotational axis in the vertical direction and about a second rotational axis extending perpendicular to the first.

Abstract: A header has a middle section disposed on a base frame, and at least two side sections disposed adjacent the middle section and comprising a flexible cutter bar and at least one conveyor device located downstream of the cutter bar, which, on the respective side sections, is in the form of an endless belt disposed adjacent the middle section in order to transport crop cut by the cutter bar parallel to the longitudinal axis of the header in the direction of the middle section, wherein the side sections comprise a large number of supporting arms which are pivotably mounted on the base frame, wherein the supporting arms of the particular side section carry the cutter bar, and at least one supporting element is provided which carries at least one belt, thereby enabling them to move independently of one another.

Abstract: A crop harvesting header with a cutter bar and a draper assembly has a draper which includes a front edge of the upper run of the draper arranged at a position adjacent to but spaced from the cutter bar and there is provided a sealing member extending along the cutter bar. The sealing member is co-extruded to form a constant cross-sectional shape along the full length and to define a first portion of a stiffer plastics material attached to the cutter bar and a second blade portion of a more flexible plastics material which extends rearwardly from the first portion at the cutter bar to lie over and in contact with a bead along a front edge portion of the draper.

Abstract: A crop harvesting header with a cutter bar and a draper assembly has a draper driven by a drive roller at one end and an idler roller at the other end. The draper is carried on a plurality of support rollers parallel to the first and second rollers for supporting the upper run of the draper at spaced positions therealong. The draper includes a front edge of the upper run of the draper arranged at a position adjacent to but spaced from the cutter bar and there is provided an integral extruded sealing member extending along the cutter bar defining a first stiffer portion attached to the cutter bar and a second flexible blade portion which extends rearwardly from the first portion at the cutter bar to lie over and in contact with a bead along a front edge portion of the draper.

Abstract: A method for conveying crop has a crop conveyor belt driven by a drive roller with a cylindrical roller body having an outer surface surrounding an axis of rotation of the roller for engaging an inner drive surface of a canvas wrapped therearound. The roller has a plurality of raised spaced elements such as ribs formed of a hard wear resistant material such as carbide clad onto the outer surface metal of the roller body. The ribs extend along a part only of the body at the two ends in an axial direction and angularly spaced around the outer surface. The ribs have a height less than 6 mm and a width less than 6 mm arranged such that the ribs do not engage into any recesses in the drive surface of the.

Abstract: A drive roller for a crop conveying belt has a cylindrical roller body having an outer surface surrounding an axis of rotation of the roller for engaging an inner drive surface of a canvas wrapped therearound. The roller has a plurality of raised spaced elements such as ribs formed of a hard wear resistant material such as carbide clad onto the outer surface metal of the roller body. The ribs extend along a part only of the body at the two ends in an axial direction and angularly spaced around the outer surface. The ribs have a height less than 6 mm and a width less than 6 mm arranged such that the ribs do not engage into any recesses in the drive surface of the belt.

Abstract: A harvesting head (100) has a laterally extending frame (102) on which left and right side conveyor belts (120, 122) are supported. A center conveyor belt (124) is disposed between the left and right side conveyor belts (120, 122) to receive crop material from the left and right side conveyor belt (120, 122) and carry it rearward. Crop deflectors (112, 114) are disposed between the left side conveyor belt (120) and the center conveyor belt (124) and between the right side conveyor belt (122) and the center conveyor belt (124) to deflect cut crop material away from the gaps between the belts and prevent substantially all the cut crop material from being drawn into the gaps between the belts and ejected onto the ground.

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 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.

Abstract: A system for supporting a cutterbar of a crop harvesting header includes a first arm pivotably secured to the header. The first arm includes a first portion configured to support the cutterbar. The first arm includes a second portion including a torsion device having a mass of elastic material connected to an adjustment assembly. The second portion is configured to be pivotably rotatable about an axis by the adjustment assembly to selectably increase or decrease a force appliable to the first portion in order to raise or lower the first portion with respect to the header. A load limiting apparatus limits an amount of torsional force that is applied to the mass of elastic material by pivotable rotation of the second portion about the axis.

Abstract: A conveyor belt tensioning arrangement for an agricultural harvesting header (102), the agricultural harvesting header (102) with the conveyor belt tensioning arrangement, and an agricultural combine having the agricultural harvesting header (102) are described herein, the arrangement comprising a conveyor belt roller (208) supported on a roller carriage (228), the conveyor belt roller (208) being spring-loaded to maintain tension in the conveyor belt (108, 112), the conveyor belt roller (208) also being supported to pivot about an axis generally perpendicular to the longitudinal extent of the conveyor belt roller (208).

Abstract: A cutting platform for use with an agricultural harvesting machine includes at least one platform section. Each platform section has a cutterbar assembly movable in a localized manner in upwards and downwards directions, an endless belt with a leading edge, and a plurality of skid shoes. Each skid shoe extends rearwardly from the cutterbar assembly and has an upper surface defining a belt support for the leading edge of the endless belt.

Abstract: A draper platform (100) has a center endless belt conveyor (118) that is supported on and between first and second adjacent support arms (246A, 246B). The center endless belt conveyor (118) is releasable from a first support arm (246A) of the two adjacent support arms to pivot downward away from the first support arm of the two adjacent support arms a distance sufficient to slidably remove an endless conveyor belt (134) from the center endless belt conveyor in a direction parallel to the axes of rotation of the rolls (300, 302) that support the endless conveyor belt.

Abstract: A harvesting machine includes a harvesting header with a header frame, a cutterbar assembly attached to the header frame along the length thereof and configured to cut a crop, and a draper assembly positioned behind the cutterbar assembly and operable to receive severed crop material from the cutterbar assembly. The draper assembly includes a center draper that delivers crop material to a feeder house of the harvesting machine and oppositely spaced side drapers that deliver crop material to the center draper. The harvesting header is operable to flex and thereby follow an uneven terrain.

Abstract: A cutting platform for use with an agricultural harvesting machine includes at least one platform section. Each platform section has a cutterbar assembly movable in a localized manner in upwards and downwards directions, an endless belt with a leading edge, and a plurality of skid shoes. Each skid shoe extends rearwardly from the cutterbar assembly and has an upper surface defining a belt support for the leading edge of the endless belt.

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 associated with a respective one 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 crop harvesting header with a cutter bar and a draper assembly has a draper driven by a drive roller at one end and an idler roller at the other end. The draper is carried on a plurality of support rollers parallel to the first and second rollers for supporting the upper run of the draper at spaced positions therealong. The draper includes a front edge of the upper run of the draper arranged at a position adjacent to but spaced from the cutter bar and there is provided an integral extruded sealing member extending along the cutter bar defining a first stiffer portion attached to the cutter bar and a second flexible blade portion which extends rearwardly from the first portion at the cutter bar to lie over and in contact with a bead along a front edge portion of the draper.

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 draper header has an endless belt conveyor supported on two arms that pivot with respect to the frame of the draper header. Both ends of the conveyor belt are supported on the arms such that the ends of the conveyor belt can rotate about respective generally vertical axes to thereby reduce uneven tension across the fore and aft width of the conveyor belt and reduce wear on the conveyor belt.

Abstract: A crop harvesting header with a cutter bar and a draper assembly has a draper canvas driven by a drive roller with a cylindrical roller body having an outer surface surrounding an axis of rotation of the roller for engaging an inner drive surface of a canvas wrapped therearound. The roller has a plurality of ribs arranged on the outer surface of the roller body extending along a part of the body in an axial direction and angularly spaced around the outer surface. The ribs have a height less than 6 mm and a width less than 6 mm arranged such that the ribs do not engage into any recesses in the drive surface of the canvas.

Abstract: A crop harvesting header with a cutter bar and a draper assembly has a draper driven by a drive roller at one end and an idler roller at the other end. The draper is carried on a plurality of support rollers parallel to the first and second rollers for supporting the upper run of the draper at spaced positions therealong. The draper includes a front edge of the upper run of the draper arranged at a position adjacent to but spaced from the cutter bar and there is provided an integral extruded sealing member extending along the cutter bar defining a first stiffer portion attached to the cutter bar and a second flexible blade portion which extends rearwardly from the first portion at the cutter bar to lie over and in contact with a bead along a front edge portion of the draper.

Abstract: A harvesting header includes a header frame, a flexible cutterbar assembly, and a draper assembly. The cutterbar assembly is mounted to the header frame and includes a plurality of skids. The draper assembly includes a draper belt with upper and lower runs, and a run support panel is provided below the lower run. The run support panel is spaced from the skids to define a residue opening therebetween through which any crop residue falling onto the skids is permitted to pass.

Abstract: A harvesting header includes a header frame, a flexible cutterbar assembly, and a draper assembly. The cutterbar assembly is mounted to the header frame and includes a plurality of skids. The draper assembly includes a draper belt with upper and lower runs, and a run support panel is provided below the lower run. The run support panel is spaced from the skids to define a residue opening therebetween through which any crop residue falling onto the skids is permitted to pass.

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.