An eccentric mount is used to adjust floatation force applied to a cutter bar of a pull type mower when the cut height of the cutter bar is changed. The eccentric mount is rotated to increase or decrease the tension on springs suspending the cutter bar. The eccentric mount is calibrated to adjust incrementally in relation to the position of the skid shoes to provide a floatation force to the cutter bar appropriate to the cutter height as determined by the spring shoe setting.

An agricultural cutting mechanism for use with an agricultural machine has a disk rotatable about an axis of rotation, a post secured to the disk, a blade, and a yieldable blade retainer. The blade is removably secured to the disk. The blade comprises a keyhole in which the post is positioned. The blade retainer is secured to the disk to move relative thereto between a blocking position blocking radially inward movement of the blade to the replacement position so as to maintain the blade in the use position and a service position releasing the blade to move radially inward to the replacement position for replacement of the blade with another blade. A blade for use with an agricultural cutting mechanism is also disclosed.

A mower system for mowing a field with a grass containing crop comprises a frame, a mowing device that is connected to the frame and has an adjustable mowing height, a sensor device arranged to sense a species composition related parameter, such as a ration grass-to-clover, of a part of the field, and to generate data based on the sensed parameter, and a control device that is operatively connected to the sensor device to receive the generated data, and is operatively connected to the mowing device and arranged to adjust the mowing height on the basis of the received data. This enables to adjust the mowing height dynamically, i.e. position dependently, based on the detected parameter. The mowing height influences the regrowth of e.g. grass and clover differently, so that the ratio can be influenced locally.

A converging drum for a crop mowing implement includes a body that extends along a central longitudinal axis. The body rotates about the central longitudinal axis in a defined rotational direction. At least one ramp feature extends radially outward from the body, relative to the central longitudinal axis. The ramp feature is arranged to form an acute angle relative to a reference plane. The acute angle may open toward the defined rotational direction to move cut crop downward, or the acute angle may open away from the defined rotational direction to move crop upward, to position the cut crop for a conditioning system. The converging drum may include a first group of ramp features near a second end of the body for moving cut crop downward, and/or a second group of ramp features near a first end of the body for moving cut crop upward.

In a rotary mower having ten generally horizontal cutter disks forming a total cutting length along the cutter bar of 16 feet, the discharge opening containing the parallel conditioner rolls and a parallel transfer roll has a width of at least 125 inches. This allows a first outermost one of the ten disks and approximately one half of the next adjacent disk to be mounted on the cutter bar outwardly of the discharge opening. A convergence system then includes only first and second impellers with the first impeller mounted on the first disk for rotation therewith and the second impeller mounted on an upper support above the impeller so that the second impeller hangs downwardly toward the second disk for contacting the cut crop and mounted immediately adjacent with the second impeller having a peripheral edge located at or immediately adjacent the vertical plane of the side of the discharge opening.

An eccentric mount is used to adjust floatation force applied to a cutter bar of a pull type mower when the cut height of the cutter bar is changed. The eccentric mount is rotated to increase or decrease the tension on springs suspending the cutter bar. The eccentric mount is calibrated to adjust incrementally in relation to the position of the skid shoes to provide a floatation force to the cutter bar appropriate to the cutter height as determined by the spring shoe setting.

An agricultural vehicle includes a chassis and a header carried by the chassis. The header includes a cutterbar with at least one cutting unit. The at least one cutting unit includes a rotary driver; a rotatable disc coupled to the rotary driver; at least one knife mount coupled to a disc surface of the rotatable disc and including a locking portion biased toward the disc surface; and a knife locked in at least one direction by the locking portion, the knife defining at least one cutting edge.

An agricultural vehicle including a chassis and a header carried by the chassis that includes a cutterbar assembly with a plurality of cutting units. Each of the cutting units includes a rotatable disc carrying a plurality of knives each defining at least one cutting edge and a guard assembly including a plurality of extensions. Each of the extensions includes a bottom guard portion connected to a top guard portion to define a knife slot that allows the plurality of knives to pass through during rotation of the disc. At least one rotary driver couples to the rotatable disc of at least one of the cutting units.

An agricultural machine includes a hitching support, at least one tool or group of tools that can be transferred between an operational position and a raised position, at least one support arm that is connected to the hitching support via two joints and to the tool or group of tools at an assembly location, and a safety device for performing a safety movement under the effect of pressure. At least one first safety movement phase is carried out around the first joint or around one of the two joints. The safety device includes at least one guiding device to allow for a variation in a distance between the other of the two joints and the assembly location when the rearward rotation is carried out around the first joint.

A mowing machine has a cutterbar oriented transverse to a travel and working direction of the mowing machine and provided with first and second ends spaced apart from each other in longitudinal direction. First cutting members are rotatably mounted on a top side of the cutterbar and rotatably driven about a vertical axis by a drive assembly within the cutterbar. A joint and drive assembly is connected to the first end of the cutterbar. A lateral cutterbar section is connected to the joint and drive assembly and has a second cutting member driven by the joint and drive assembly. The joint and drive assembly has first and second holding elements mounted relative to each other such that pivoting of the lateral cutterbar section in a cutterbar plane of the cutterbar is enabled. The first and second holding elements are arranged in planes positioned at a minimal spacing above each other.