Combine harvester

US5024631A · kind A · utility

Assignee

• Claas oHG · DE

Inventors

• Franz Heidjann · Harsewinkel, DE
• Karl-Josef Kleingraeber · Warendorf, DE

Key dates

• Filing date: Apr 23, 1990
• Grant date: Jun 18, 1991
• Expiry date: Apr 23, 2010

Classification

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

Abstract

In a combine harvester having a tangential-flow threshing unit installed transversely to the direction of travel and comprising a drum (6) and a concave which has a frame (14) and a removable sieve lining (25), an inclined conveyor (3) protruding into the threshing unit housing through the front wall (1) of the latter and an opening in this wall (1) being arranged above the inclined conveyor (3), it is proposed, in order to facilitate the installation and removal of the sieve lining (25), that the said sieve lining be divided into a plurality of longitudinally abutting lining sections which are supported at the butt joints by arcuate webs and that the sieve lining (25) and the frame (14) be designed in such a way that the sieve lining (25) is removable in the circumferential direction from the frame (14) and can be removed through the opening in the wall (1) without dismounting the inclined conveyor (3). Particularly expedient embodiment features are given for a frame (14) having, in particular, a three-part sieve lining (cf. drawing).