Patent ID: 6688972
Filing Date: 2004-02-10
Classification: A01F

Abstract:
A combine for threshing and separating a harvested crop material, the combine being provided with a chopper arrangement for chopping harvested crop material that has been threshed and separated wherein the chopper arrangement comprises at least one wheel having radially extending knives entrained thereon, the wheel is rotated about a predominantly vertical axis inside a housing having an inlet through which the harvested crop material that has been threshed and separated enters the chopper arrangement, the housing being provided with a shear bar adjacent to the inlet which cooperates with the knives to chop the harvested crop material that has been threshed and separated and a foreign object detection arrangement is arranged adjacent to the flow of the harvested crop material that has been threshed and separated upstream from the wheel, the foreign object detection arrangement is connected to a carrier arrangement for redirecting the flow of the harvested crop material that has been threshed and separated around the wheel when a foreign object is detected.