US 4,009,557 AGranted

Soybean harvester

AssigneeIowa State University Research Foundation, Inc.

InventorAllen V. Reicks

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Abstract

A conventional self-propelled combine has a forwardly positioned platform assembly equipped with a usual transverse auger for conveying cut crop plants to a crop intake which is located in the platform assembly back wall intermediate the ends of the auger. A row crop header mounted from the floor of the platform assembly is comprised of a plurality of transversely spaced harvesting or row units, each of which includes a pair of gathering belts arranged at opposite sides of a longitudinally extended guideway. A pair of discs having upwardly and outwardly inclined peripheral notched sections are positioned transversely opposite each other at the forward end of the guideway. The adjacent peripheral portions of the discs are in an overlapped relation so that the peripheral section of the lowermost disc in the cutting zone of the discs rests on the ground surface. Each row unit is movably supported on the floor of the platform assembly for up and down pivotal movement of the forward end thereof so that the lowermost disc floats on the ground surface to provide for a crop plant to be cut closely adjacent the ground surface. Additionally, each row unit is laterally movable to provide for the centering of a crop plant in a row in the cutting zone of the discs.

A soybean harvester including:

a. a portable frame movable over a field of row planted crops including a platform assembly having a rearwardly located crop inlet means and means for delivering severed crop plants to said inlet means,
b. a plurality of transversely spaced longitudinally extended row units projected forwardly from said platform assembly, each row unit having a fore-and-aft guideway over the full length thereof,
c. means movably supporting each of said row units on said platform assembly for free lateral movement of the forward end thereof,
d. a pair of endless flexible gathering means for each row unit having transversely opposite rearwardly moving runs thereof arranged at opposite sides of a guideway for engaging crop plants therebetween,
e. a pair of rotatable cutting discs corresponding to each row unit rotatably supported adjacent the forward end of a row unit at opposite sides of a guideway for rotation about upright axes,
f. each cutting disc having an upwardly and outwardly extended peripheral section and each pair of said cutting discs having the adjacent peripheral portions thereof in an overlapped relation within the transverse confines of a corresponding guideway, and
h. means on each of said discs for centering a row unit relative to each crop plant in a row,
i. with a standing crop plant in a row severed by a pair of cutting discs being engaged and carried by a pair of said gathering means to said delivery means,
j. a plurality of horizontal base members corresponding to said row units,
k. means supporting said base members on said platform assembly for projection forwardly therefrom,
l. each of said means for movably supporting a row unit including a bearing assembly,
m. means supporting each bearing assembly adjacent the front end of a base member, and
n. a shaft projected downwardly from each row unit, intermediate the ends thereof, for rotatable support within a corresponding bearing assembly to provide for a lateral pivotal movement of a row unit about the axis of said shaft.

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Abstract

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