Combine harvester cleaning apparatus
US4897071A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1988 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Oct 20, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D75/282
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A combine harvester having a threshing and separating mechanism and a grain cleaning mechanism disposed beneath the threshing and separating mechanism and including a grain pan fitted with a movable divider apparatus and operable to receive grain from the threshing and separating mechanism, sieve mechanism operable to receive grain from the grain pan, and a fan operable to blow air through the sieve mechanism, is disclosed wherein an inclination sensing mechanism for sensing the lateral inclination of the combine harvester is operatively associated with an actuator operatively coupled to the grain pan divider apparatus for positionally adjusting the grain pan divider apparatus in response to the output of the inclination sensing mechanism to compensate for any given lateral inclination of the harvester. The sieve mechanism includes sieve sections pivotally mounted for lateral movement about respective fore-and-aft extending axes and operatively coupled to the actuator for positional adjustment thereof to effect a transverse leveling of the sieve mechanism when the combine harvester is laterally inclined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.