ADJUSTABLE GATHERING CHAIN ASSEMBLY FOR A HEADER OF AN AGRICULTURAL HARVESTER

摘要

An adjustable gathering chain assembly for a header of an agricultural harvester is disclosed as is a header including such an assembly and methods for adjusting the length of the gathering chain assembly. The assembly includes a drive unit, a driven unit spaced from and movable with respect to the drive unit and an endless gathering chain extending between the drive unit and the driven unit. An adjustment unit including an idler member in engagement with the gathering chain is operable to move the idler member with respect to the drive unit in order to move the driven unit between first and second positions relative to the drive unit whereby the header may effectively harvest both standing crop and downed or lodged crop depending on harvesting conditions.

主权项

1. An adjustable gathering chain assembly for a row unit of a header for an agricultural harvester comprising:
a drive unit; a driven unit; an endless chain extending between the drive unit and the driven unit; an adjustment unit for moving the endless chain between first and second positions; and a tensioner biasing one of the drive unit and driven unit for tensioning the endless chain in the first and second positions.