Compact knife head assembly, bearing and eccentric for a...

Details Compact knife head assembly, bearing and eccentric for a... Compact knife head assembly, bearing and eccentric for a...

2007-12-06

2010-10-12

Will, Thomas B (Department: 3671)

Harvesters

Cutting

Reciprocating central cutter

Reexamination Certificate

active

07810304

ABSTRACT:
A compact epicyclic drive includes a pinion rotatable about a ring gear and an eccentric element fixedly connected to the pinion so as to be rotated thereby, a knife head bearing supported on and extending around the eccentric element, and a knife head assembly connected in driving relation to a sickle knife assembly. The knife head assembly includes an element supported on and extending around the knife head bearing and configured so as to transfer sidewardly directed components of rotations of the eccentric element into sideward reciprocating movements of the sickle knife assembly. The eccentric element, knife head bearing, and knife head assembly are generally flat and axially coextensive, contributing to the compactness of the drive. The sickle drive is adapted to incorporated into or beneath a floor or pan of a header of an agricultural harvesting machine.

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