Concave threshing bars for use in an agricultural harvester

A threshing section of an agricultural combine, comprising:

• a rotor;
• and
• a plurality of concave sections spaced radially outward from the rotor, at least one of the plurality of concave sections including:
• a frame comprised of a plurality of members interconnected to one another and including a pair of the members spaced apart opposite, and extending generally parallel, to one another, each of the opposite members having an upper portion with a top edge thereon and a plurality of openings formed in the upper portion adjacent to and below the top edge, the openings being spaced apart from one another such that the spaced apart openings formed in one of the opposite members respectively correspond with the spaced apart openings formed in the other of the opposite members;
• and
• an array of threshing elements supported by and extending between the opposite members of the frame and being spaced apart and extending generally parallel to one another;
• the threshing elements being elongated bars, each of the elongated bars having a pair of opposite ends each being respectively seated in a respective one of the corresponding openings of the opposite members of the frame, and a notch formed in the bar and extending longitudinally along the bar, the notch defining an aggressive threshing edge recessed into the bar and disposed adjacent to the upper portions of the opposite members of the frame and facing opposite to a direction of movement of a rotor of the agricultural combine, the notch having a channel along an outer edge of the notch, the channel being filled with filler material having a differing hardness than a hardness of the bar.

An agricultural combine, comprising:

• a chassis;
• and
• a threshing section carried by the chassis, the threshing section including:
• a rotor;
• and
• a plurality of concave sections spaced radially outward from the rotor, at least one of the plurality of concave sections having:
• a frame comprised of a plurality of members interconnected to one another and including a pair of the members spaced apart opposite, and extending generally parallel, to one another, each of the opposite members having an upper portion with a top edge thereon and a plurality of openings formed in the upper portion adjacent to and below the top edge, the openings being spaced apart from one another such that the spaced apart openings formed in one of the opposite members respectively correspond with the spaced apart openings formed in the other of the opposite members;
• and
• an array of threshing elements supported by and extending between the opposite members of the frame and being spaced apart and extending generally parallel to one another;
• the threshing elements being elongated bars, each of the elongated bars having a pair of opposite ends each being respectively seated in a respective one of the corresponding openings of the opposite members of the frame, and a notch formed in the bar and extending longitudinally along the bar, the notch defining an aggressive threshing edge recessed into the bar and disposed adjacent to the upper portions of the opposite members of the frame and facing opposite to a direction of movement of a rotor of the agricultural combine, the notch having a channel along an outer edge of the notch, the channel being filled with filler material having a differing hardness than a hardness of the bar.