Concave with an array of longitudinally notched spaced apart threshing elements
OwnerDonald J. Estesinventor
Life of this patent
Estimating the term…
Abstract
A concave includes a frame and an array of threshing elements supported by the frame, the threshing elements being spaced apart and extending generally parallel to one another. The threshing elements are configured in the form of round bars each having formed on an upper portion thereof disposed adjacent to an upper portion of the frame a longitudinally-extending notch respectively defining an aggressive threshing edge. The spaced apart relationship and round configuration of the threshing elements reduce plugging of the concave. The threshing edges facing in a direction opposite to the direction of crop material flow restrict crop material flow and thereby enable more effective threshing.
Claims21
A threshing concave for an agricultural combine, comprising:
- a frame comprised of a plurality of members interconnected to one another and including a pair of said members spaced apart opposite, and extending generally parallel, to one another, each of said opposite members having an upper portion with a top edge thereon and a plurality of openings formed in said upper portion adjacent to and below said top edge, said openings being spaced apart from one another such that said spaced apart openings formed in one of said opposite members respectively correspond with said spaced apart openings formed in the other of said opposite members;
- and
- an array of threshing elements supported by and extending between said opposite members of said frame and being spaced apart and extending generally parallel to one another;
- said threshing elements being elongated bars having round configurations in cross-section, each bar having
- a pair of opposite ends each being respectively seated in a respective one of said corresponding openings of said opposite members of said frame, and
- a notch formed in said bar and extending longitudinally between said opposite ends of said bar such that said notch defines an aggressive threshing edge recessed into said bar and disposed adjacent to said upper portions of said opposite members of said frame and facing opposite to the direction of crop material flow relative to said threshing concave.
A threshing concave for an agricultural combine, comprising:
- a frame including
- a pair of opposite side members, and
- a pair of opposite end members spaced apart from and extending generally parallel to one another and having ends joined to corresponding ends of said opposite side members,
- said opposite end members each having an upper portion with a top edge thereon and openings formed in said upper portion of said each opposite end member adjacent to and below said top edge, said openings being spaced apart from one another such that said openings in one of said opposite members respectively correspond with said openings in the other of said opposite members;
- and
- an array of elongated threshing bars spaced apart and extending generally parallel to one another, said bars being straight in longitudinal extent and round in cross-section, said each bar having
- a pair of opposite ends each being respectively seated in a respective one of said corresponding openings in said opposite end members of said frame,
- a lower portion,
- an upper portion, and
- a notch defining an aggressive threshing edge recessed into said bar adjacent to said upper portion of said bar and above said lower portion of said bar, said notch longitudinally extending between said opposite ends of said bar such that each of said notches is disposed adjacent to said upper portions of said end members of said frame and face opposite to the direction of crop material flow relative to said concave.
Dependencies are inferred from the claim text.