Floating cutterbar knife drive

Details Floating cutterbar knife drive Floating cutterbar knife drive

A - Human Necessities

01

D

56/141

A01D 47/00 (2006.01) A01D 34/30 (2006.01) A01D 41/14 (2006.01) F16H 7/12 (2006.01) F16H 7/08 (2006.01)

Patent

CA 1081474

FLOATING CUTTERBAR KNIFE DRIVE ABSTRACT OF THE DISCLOSURE A crop harvesting header for a combine wherein the header includes a transversely elongated frame having oppo- site side walls. A cutterbar extends between the side walls and is supported from the header frame for floating movement relative thereto as induced by varying ground profile. The cutterbar is connected to the forward ends of a plurality of transversely spaced runners pivotally connected to the header frame. One of the runners is disposed at an end of the header frame adjacent to one of the side walls. Recip- rocating drive for the cutterbar is provided by a wobble drive mounted on the end runner and a belt drive therefor mounted on the adjacent side wall. A belt tightener pulley assembly is pivotally mounted on the side wall. A mechanic- al linkage directly interconnects the pulley assembly with the end runner such that the pulley assembly is shifted in response to movement of the end runner to provide substanti- ally instantaneous change in belt drive geometry created by and to compensate for cutterbar movement relative to the header.

323475

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