Self-propelled harvester thresher

US4693259A · kind A · utility

Assignee

• Claas oHG · DE

Inventors

• Theodor Freye · Harsewinkel, DE
• Franz Heidjann · Harsewinkel, DE

Key dates

• Filing date: Jul 10, 1985
• Grant date: Sep 15, 1987
• Expiry date: Jul 10, 2005

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01F12/442
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A self-propelled harvester thresher has a threshing and separating mechanism, a flat sieve device, and a sieve drum for the straw-chaff-grain mixture located between the threshing and separating mechanism and the flat sieve device, wherein the sieve drum is located above the flat sieve device and has a feeding opening and an outlet opening with a screw transporting the product from the feeding opening to the outlet opening, and the thresher is provided with a returning member located immediately before the outlet opening.