Patent ID: 8087982

Claim:
A combine harvester threshing drum threshing bar, comprising: a rigid, integral, unitary threshing fixture includes a leading edge and an opposed trailing end, an upstream face and an opposed downstream face, a top threshing side and an opposed bottom threshing drum emplacement side; the leading edge has a first width extending from the upstream face to the downstream face, and the trailing end has a second width extending from the upstream face to the downstream face; the opposed upstream and downstream faces extend between the top threshing side and the opposed bottom threshing drum emplacement side of the threshing fixture from the leading edge of the threshing fixture to the trailing end of the threshing fixture; the top threshing side includes a trailing threshing face and a leading threshing face that meet at a first corner formed in the top threshing side, the first corner located between the leading edge and the trailing end of the threshing fixture and extends from the upstream face to the downstream face; the trailing threshing face extends between the opposed upstream and downstream faces of the threshing fixture from the trailing end to the first corner; the leading threshing face extends between the opposed upstream and downstream faces of the threshing fixture from the first corner to the leading edge, and inclines downwardly relative to the trailing threshing face from the first corner and meets, and cooperates with, the bottom threshing drum emplacement side and the opposed upstream and downstream faces of the threshing fixture at the leading edge to form a wedge in the threshing fixture; crop threshing grooves formed in the trailing threshing face of the top threshing side of the threshing fixture; the upstream face includes a rearward surface and a forward surface that meet at a second corner formed in the upstream face, the second corner is formed between the leading edge and the trailing end of the threshing fixture and extends from the top threshing side of the threshing fixture to the bottom threshing drum emplacement side of the threshing fixture; the rearward surface of the upstream face extends between the top threshing side and the bottom threshing drum emplacement side of the threshing fixture from the trailing end to the second corner; the forward surface of the upstream face extends between the top threshing side and the bottom threshing drum emplacement side of the threshing fixture from the second corner to the leading edge, and is in-turned from the rearward surface and toward the downstream face of the threshing fixture from the second corner to the leading edge of the threshing fixture forming an oblique crop material deflecting surface; and the first width of the leading edge of the threshing fixture is less than the second width of the trailing end of the threshing fixture.