Doffer assembly for a harvesting unit of a cotton harvester

Details Doffer assembly for a harvesting unit of a cotton harvester Doffer assembly for a harvesting unit of a cotton harvester

1990-04-19

1991-05-14

Britts, Ramon S.

Harvesters

Cotton

Pickers

56 45, 403337, A01D 4614

Patent

active

050145029

ABSTRACT:
A cotton harvesting unit with a cotton doffer assembly rotatable about a vertical axis and including an adjustable drive unit with a vertical drive shaft for imparting rotary motion to and for vertically positioning doffer pads of a doffer unit relative to picker spindles of an adjacent picker rotor. The drive unit vertically positions the doffer pads through an operative mechanism rotatable about a second axis adjacent to the doffer assembly. A motion converting mechanism converts rotary motion of the operative mechanism into linear motion of the drive unit drive shaft. The drive shaft of the drive unit and doffer unit are releasably interconnected to each other to facilitate repair/replacement of the doffer unit. To inhibit contaminants for encumbering adjustment of the drive unit, the motion converting mechanism is wholly arranged within the housing assembly and protected from the ambient environment in which a harvester is operated. The lower end of the doffer assembly is rotatably supported by a doffer support. An access post is vertically arranged adjacent to doffer assembly to add strength and rigidity to the doffer support. The access post is movable to an open position to facilitate access to the doffer assembly while maintaining cotton conveying structure in association with the harvesting unit.

REFERENCES:
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patent: 2664688 (1954-01-01), Nickla
patent: 2664689 (1954-01-01), Walker et al.
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patent: 3224178 (1965-12-01), Kennedy
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patent: 3427791 (1969-02-01), Hubbard
patent: 4484831 (1984-11-01), Hanson, Jr. et al.
patent: 4630431 (1986-12-01), Schlueter et al.
patent: 4742672 (1988-05-01), Orsborn
patent: 4819415 (1989-04-01), Engelstad et al.
Case IH Parts Catalog, "1822 and 1844 Cotton Picker, Jun. 1990, pp. 9A-56, 9A-57".

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