Threshing mechanism with swivellable concaves

US9149001B2 · kind B2 · utility

Assignee

• CLAAS Selbstfahrende Erntemaschinen GmbH · DE

Inventors

• Bernd Holtmann · Sendenhorst, DE
• Dirk Esken · Harsewinkel, DE
• Manfred Krieft · Harsewinkel, DE
• Franz Buddenkotte · Harsewinkel, DE
• Ralf Bussmann · Sassenberg, DE

Key dates

• Filing date: Jan 6, 2014
• Grant date: Oct 6, 2015
• Expiry date: Feb 16, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01F12/26
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A threshing mechanism is formed with a first threshing drum and a second threshing drum disposed one behind the other in a direction of crop flow. A first concave encloses the first threshing drum and the second threshing drum in sections in a circumferential direction. A second concave encloses the second threshing drum in sections in the circumferential direction. The concaves are displaceable in a radial direction of the threshing drums and are formed with at least one crop-processing device disposed at the first concave. The first concave and the second concave are swivellable about a common axis connecting the concaves. The enclosure of the second threshing drum by the first concave and the second concave is approximately identical.