Case Corporation

Clint J Imel

Robert A Matousek

Glenn Everett Pope

Jon E Ricketts

A rotary combine includes a rotor having a longitudinal axis of rotation and a concave removably mounted adjacent the rotor. The concave assembly includes a longitudinally extending frame having first and second sides spaced circumferentially around the rotor. Each of the first and second sides is transversely moveable relative to the axis of rotation of the rotor. A method for adjusting the position of the concave assembly is provided and includes moving at least one of the first and second sides of the frame in a direction transverse to the axis of rotation.

Transversely adjustable concave assembly for a rotary combine

A locking arrangement for a concave of a rotary combine, the concave having first and second ends spaced circumferentially around a rotor of the combine. The first end includes a pivot member received in an opening of a hook member supported by a support structure so as to support the first end for pivotal movement about a first pivot axis substantially parallel to a longitudinal axis of rotation of the rotor. A locking member mounted on the hood member is pivotable between an engaged position for engaging the pivot member of the first end of the concave for retaining the pivot member in the opening of the hook member and a disengaged position wherein the locking member is disengaged from the pivot member while the pivot member is supported in the opening by the hook member.

Concave locking member for a rotary combine

A rotary combine is disclosed to include a wheel-supported main frame supporting, among other components, a cylindrically shaped rotor and a grain bin having sides and a bottom for the temporary storage of crop material treated by the combine. A support structure supported by the main frame overlying the rotor and including a lower portion having a semi-circular surface partially surrounding the upper longitudinal half of the rotor and including an upper portion having two inclined surfaces meeting to form an inverted-V shaped surface extending, in spaced-apart relationship, along and above the semi-circular surface and comprising at least a portion of the bottom surface of the grain bin.

Support structure for a concave assembly for a rotary combine

A method for replacing the concave insert of a rotary combine. The rotary combine includes a rotor having a longitudinal axis of rotation and a concave removably mounted adjacent the rotor. The concave is removable in a direction outwardly transverse relative to the axis of rotation of the rotor. In a preferred embodiment, a concave assembly includes a longitudinally extending frame having first and second sides spaced circumferentially around the rotor. Each of the first and second sides is transversely moveable relative to the axis of rotation of the rotor. A concave insert is removably mounted to the frame.

Replacing concave inserts for a rotary combine

A rotary combine includes a rotor having a longitudinal axis of rotation and a concave removably mounted adjacent the rotor. The concave is removable in a direction outwardly transverse relative to the axis of rotation of the rotor. In a preferred embodiment, a concave assembly includes a longitudinally extending frame having first and second sides spaced circumferentially around the rotor. Each of the first and second sides is transversely moveable relative to the axis of rotation of the rotor. A concave insert is removably mounted to the frame. A method for adjusting the position of the concave assembly is also provided and includes moving at least one of the first and second sides of the frame in a direction transverse to the axis of rotation. A method for replacing the concave insert is also provided.

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East Moline, IL, United States of America

Clint J Imel