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US 11,224,161 B2Granted
Cutter assembly for an agricultural harvester
AssigneeCNH Industrial America LLC
InventorSeth Michael Bich
Life of this patent
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Abstract
An improved cutter assembly for use with a header of an agricultural harvester is provided. The assembly includes a pair of oppositely directed knife blades or cutter bars and a center knife drive. A crank shaft drives both knife blades in linear reciprocating paths with no fore and aft movement. As a consequence, harmful fore and aft vibration is eliminated. The assembly is simple and durable in design, less susceptible to vibration-induced wear and tear, and comparatively simple to manufacture and repair.
Claims22
A knife drive assembly for an agricultural harvester header comprising:
- a knife drive that includes:
- a housing,
- a crank shaft comprising a flywheel,
- a first arcuate connecting member extending from the crank shaft, and
- a second arcuate connecting member extending from the crank shaft,
- wherein the first and second connecting members are eccentrically connected to the crank shaft, and a central rotational axis of the crank shaft extends through a proximal end of each of the first and second connecting members,
- wherein the first and second connecting members extend in opposite directions and have distal ends connected to respective pivot connections, and
- wherein the flywheel, the first connecting member, the second connecting member, and respective pivot connections are completely housed within the housing.
5 more elements
Dependencies are inferred from the claim text.