Title: Combine harvester having an axial-flow threshing and separating unit

I claim:

1. In a combine harvester including:

an axial-flow threshing and separating unit comprising a threshing and separating cylinder disposed with its axis lying in a vertical plane extending longitudinally of the combine harverster, a counter-beater associated with said cylinder and in the shape of a concave grille, and a separator casing, substantially in the shape of a tubular body, having at least one portion constituted by a grille; and

means for feeding the harvested crop to said threshing and separating unit;

the improvement wherein the said threshing and separating unit is formed with a crop input opening arranged on one side thereof adjacent to its front end, and the said feed means comprises a series of feed cylinders arranged side-by-side, adjacent the said input opening, with their axes parallel to said longitudinal vertical plane, each of said feed cylinders having a first portion in the form of an auger, adjacent its front end, and a second portion adjacent its rear end, provided with at least one series of radial blades on its outer surface, the axial length of the said first portion being progressively greater for the feed cylinders the further away they are from said input opening of the axial-flow threshing and separating unit.

2. A combine harvester according to claim 1, wherein there is provided a feed drum disposed upstream of said feed cylinders and transverse to said longitudinal plane.


Other info:


Inventors: Raineri, Giuseppe (Bassano del Grappa, IT)

Application Number: 06/262880
Filing Date: 1981-05-12
Publication_date: 1982-07-13
Assignee: Laverda, Spa Pietro

Primary Class(es): 460/70 130/27R
Other Classes: A01D61/00; A01F12/10; A01F12/10; A01F7/06
US Patent Ref:

1879960	September, 1932	Thorn	56/146	Combined harvester-thresher
2236002	March, 1941	Lederer	56/146	Harvester
2390949	December, 1945	Krause et al.	130/27AB	Feeding mechanism
4087953	May, 1978	Wilson et al.	130/27T	Combine crop feeding system

Other Refs: DE1482219DE2245603FR1484702

May, 1969	56/146
April, 1973	130/27T
June, 1967	56/146

Primary Examiner: Hirsch, Paul J.
Assistant Examiner:
Attorney: Sughrue, Mion, Zinn, Macpeak & Seas