A cutting blade applied to a reciprocating-type cutting device (1) including a pair of cutting blades (2, 3) that are reciprocated in a state of being superposed on each other to cut an object to be cut. The cutting blade includes: a base element (21); and a plurality of blade bodies (22) jutting from the perimeter of the base element (21), the plurality of blade bodies (22) each having a sliding surface (24) that slides over a mating blade body (32). At least some of the plurality of blade bodies (22) each have a high-hardness section (22A) formed in a part including at least both ends (24a, 24b) in a sliding direction of the sliding surface (24), the high-hardness section (22A) having hardness higher than the hardness of the other part. The thickness of the high-hardness section (22A) is set to 10 μm or more and 200 μm or less.

An agricultural vehicle header having a frame having a main truss extending in a lateral direction, at least one support arm extending from the frame in the forward direction, a cutter assembly attached to a respective distal end of each at least one support arm, and a linkage connecting a respective proximal end of each at least one support arm to the frame. The linkage includes a virtual pivot located below the main truss, and at or behind the main truss with respect to the forward direction. An agricultural vehicle having the header is also provided.

An agricultural vehicle header having a frame having a main truss extending in a lateral direction, at least one support arm extending from the frame in the forward direction, a cutter assembly attached to a respective distal end of each at least one support arm, and a linkage connecting a respective proximal end of each at least one support arm to the frame. The linkage includes a virtual pivot located below the main truss, and at or behind the main truss with respect to the forward direction. An agricultural vehicle having the header is also provided.

A multi-segment header for an agricultural harvester including a multi-segment chassis and a backsheet supported by each of the multi-segment chassis. The multi-segment header further includes a backsheet extension assembly that has a backsheet extension mounted adjacent a top end of each backsheet, and an articulating joint extending between adjacent backsheet extensions. The articulated backsheet extension assembly follows upward and downward movement of the backsheets of the multi-segment chassis and blocks grain from passing over the backsheets and going unharvested.

A multi-segment header for an agricultural harvester including a multi-segment chassis and a backsheet supported by each of the multi-segment chassis. The multi-segment header further includes a backsheet extension assembly that has a backsheet extension mounted adjacent a top end of each backsheet, and an articulating joint extending between adjacent backsheet extensions. The articulated backsheet extension assembly follows upward and downward movement of the backsheets of the multi-segment chassis and blocks grain from passing over the backsheets and going unharvested.

A knife blade for a cutting knife of an agricultural harvesting machine, with a blade top side and a blade bottom side, wherein a surface of the blade bottom side is composed of a planar surface arranged in a plane and a recess region extending above the plane. A height of the knife blade corresponds to a maximum distance between the blade top side and the planar surface in a direction normal to the plane, a material thickness of the knife blade corresponding to a distance between the blade top side and the blade bottom side, and a method of manufacturing a knife blade.

A knife blade for a cutting apparatus has two cutting edges which are arranged at a substantially triangular cutting portion extending longitudinal to a fastening portion, wherein the cutting edges have areas with different tooth pitches from tooth pitches in other areas.

An agricultural work machine is provided comprising a surroundings detection device for detecting a surroundings in sections, and one or more controllable working elements, wherein the surroundings detection device generates surroundings detection signals, which can be processed in a control and regulating device assigned to the agricultural work machine, wherein the surroundings detection device is designed as a scanner, which scans the surroundings in scanning planes, and wherein each scanning plane is assigned to the control of working elements.

An agricultural work machine is provided comprising a surroundings detection device for detecting a surroundings in sections, and one or more controllable working elements, wherein the surroundings detection device generates surroundings detection signals, which can be processed in a control and regulating device assigned to the agricultural work machine, wherein the surroundings detection device is designed as a scanner, which scans the surroundings in scanning planes, and wherein each scanning plane is assigned to the control of working elements.

A cutter assembly includes a knife guard holder to be removably connected to a cutter bar, a knife guard and an interface between the knife guard holder and the knife guard. The knife guard may have a knife channel to slidably guide a cutter knife. The interface extends between the knife guard holder and the knife guard to locate and releasably retain the knife guard with respect to the knife guard holder.