Abstract: In an articulated combine, the hinge arrangement connecting the front and rear bogies consists of spaced-apart upper and lower links. The lower link construction provides for oscillation between the bogies as well as establishing a steering pivot center. The upper link normally lies in a fore-and-aft plane and is pivotally connected between rearward upper portions of the respective bogies, thus spanning the length of the rear bogie. The hinge arrangement also provides part of the structure for a conveyor for conveying clean grain between the front and rear bogies. In one embodiment, the upper link comprises an auger tube into which clean grain is introduced by a clean grain elevator and cross auger. In another embodiment, the lower link assembly does double duty as an auger conveyor housing.

Abstract: An articulated self-propelled combine has front and rear units pivotally connected together for articulation about a vertical axis, the front and rear units being respectively supported on front and rear pairs of wheels. A harvesting header is carried by the front unit and feeds a fore and aft rotary separator, the combine engine and operator's station being mounted on the front unit on opposite sides of the separator. The separated grain is transferred across the axis of articulation to a cleaning mechanism on the rear unit, the cleaned grain being conveyed to a large grain tank disposed above the cleaning unit and spanning the width and length of the rear unit. The rear unit is also capable of oscillating relative to the front unit about a fore and aft axis, self-levelling means being provided for the rear wheels to maintain the cleaner is a generally level condition.