Over-Center Locking System for a Chaff Pan of an Agricultural Harvester

• Main Authors: Desmet, Stefaan, Passchyn, Tim, Duquesne, Frank R.G
• Format: Patent
• Language: English
• Published: 21.05.2020
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE; FISHING; FORESTRY; HAY OR STRAW PRESSES; HUMAN NECESSITIES; HUNTING; PROCESSING OF HARVESTED PRODUCE; TRAPPING

A grain cleaning system in an agricultural harvester, that includes a chaff pan with a pivotal axis near an end of the chaff pan. The chaff pan has a dual locking system coupled thereto for holding the chaff pan in two different positions. The dual locking system has a first over-center locking arrangement and a second over-center locking arrangement. The first locking arrangement is used to hold the chaff pan in an upward position when the first locking arrangement is locked. The first locking arrangement includes a first linkage element; and a second linkage element. The second locking arrangement holds the chaff pan in a locked downward position when the second locking arrangement is locked. The second locking arrangement includes a first linkage element; and a second linkage element. The first linkage element of the first locking arrangement is also the first linkage element of the second locking arrangement.