Patent ID: 8142266
Filing Date: 2012-03-27
Classification: A01F

Abstract:
1. A threshing system for an agricultural combine, comprising: a body supported for rotation in a direction of rotation about a rotational axis therethrough, the body having an outer circumferential surface including a plurality of mounting lugs disposed at discrete locations thereabout and at spaced intervals in a generally helical pattern about the body, wherein the mounting lugs have an inclined surface; and a plurality of threshing elements comprising a set of discrete threshing bars extending generally axially or at a small acute angle to the rotational axis and supported on at least two adjacent mounting lugs, each threshing bar is mounted on the inclined surfaces of the at least two adjacent mounting lugs, each set of threshing bars including a leading threshing bar proximate the outer surface of the body and a succession of threshing bars arranged progressively farther from the outer surface in a radially outwardly direction, thereby forming a ramp and defining a wedge shaped opening between the threshing bars and the outer surface, adjacent ones of the threshing bars having axially extending spaces therebetween sufficiently large for passage of grain therethrough to the wedge shaped opening.