Cnh America LLC

Cnh Industrial America LLC

Cnh Belgium N.v.

Karl W Klotzbach

Gary Lyman Bich

James F Rayfield

Ryan Marcus Figgins

Douglas Sorensen

Sunilkumar C Machhar

An improved knife assembly for use with a header of an agricultural harvester. The assembly includes a knife head, a knife back and a plurality of sickle sections fastened to the knife head and knife back. The sickle sections include first and second portions where a second portion of one knife section overlaps a first portion of an another sickle section when the knife sections are arranged in adjacent relationship. The overlapping areas of the adjacent knife sections include aligned though holes which shared fasteners. The resultant construction reduces the overall knife assembly mass thereby leading to increased cutting speeds and corresponding harvester ground speeds. Additionally, the time and labor associated with manufacture and maintenance is reduced while the assembly strength and force distribution capability is enhanced.

Overlapping sickle section for a knife assembly

A flexible cutterbar header for an agricultural plant cutting machine, includes a plurality of elongate, telescoping support arms pivotally connected to a floor of the header and supporting a flexible cutterbar for upward and downward, and fore and aft movements relative thereto, apparatus extending between at least some of the support arms configured and operable for controlling the telescoping thereof substantially uniformly, and a preload adjusting system configured and operable for applying a preload force against the cutterbar through the support arms in a manner to automatically increase as the support arms telescopically increase in length, and automatically decrease as the support arms telescopically decrease in length.

Agricultural plant cutting header with fore and aft adjustable flexible cutterbar having automatic preload adjustment

A system for supporting a cutterbar of a crop harvesting header includes a first arm pivotably secured to the header. The first arm includes a first portion configured to support the cutterbar. The first arm includes a second portion including a torsion device having a mass of elastic material connected to an adjustment assembly. The second portion is configured to be pivotably rotatable about an axis by the adjustment assembly to selectably increase or decrease a force appliable to the first portion in order to raise or lower the first portion with respect to the header.

Cutterbar support for a crop harvesting header

A cutting assembly for a header of a plant-cutting machine has an elongate blade support bar including a first elongate segment that can engage a second elongate segment by interlocking. Overlying the elongate blade support bar is a plurality of blade sections, including first sub-plurality of blade sections overlying a first lengthwise portion of the first elongate segment, and a second sub-plurality of blade sections overlying a second lengthwise portion of the first elongate segment and a third lengthwise portion of the second elongate segment. An elongate attach bar overlies the first sub-plurality of blade sections, and a spanning bar overlies the second sub-plurality of blade sections.

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Ephrata, PA, United States of America

Karl W Klotzbach