Earth working – Diverse tools – Rolling and non-rolling
Patent
1977-04-29
1978-10-24
Johnson, Richard J.
Earth working
Diverse tools
Rolling and non-rolling
172624, 172658, 172509, A01B 3924
Patent
active
041216695
ABSTRACT:
A row-crop cultivator for tilling the soil between adjacent rows of crops is connected to a prime mover. The cultivator includes a drawbar connected to the prime mover and a plurality of laterally adjacent cultivating gang assemblies for tilling the soil between adjacent crop rows, each is connected to the drawbar so that it travels on the ground under its own weight and moves independently in a vertical direction relative to an adjacent gang assembly. Each gang assembly has a frame coupled to the drawbar, guide means, such as a single-ribbed wheel, carried by the frame for following a path defined in the ground indicating the direction of movement for the gang assembly between adjacent crop rows, earthworking tools, such as ground-opening discs, weed cutters and spring tooth harrows, carried by the frame to loosen or break up the soil between adjacent crop rows, and bearing means, such as a roller, carried by the frame to abut corresponding cooperating bearing means, such as a vertical bearing plate, carried by an adjacent gang assembly. The ground opening discs are positioned at opposite lateral sides of the gang assembly for penetrating the ground along a line generally adjacent the respective crop rows. The discs on opposing lateral sides of adjacent gang assemblies are spaced apart to flank the crop row which passes between the adjacent gang assemblies. Each gang assembly tills soil between adjacent crop rows and is free to float with the bearing means permitting relative vertical movement between adjacent gang assemblies, but prevents relative lateral movement because of the horizontal abutment of the respective cooperating bearing means.
REFERENCES:
patent: RE25803 (1965-06-01), Lynch
patent: 2298537 (1942-10-01), Lyle
patent: 3680648 (1972-08-01), Tonsfeldt
patent: 3830311 (1974-08-01), Bryson
patent: 3921726 (1975-11-01), Connor
Johnson Richard J.
Royal Industries, Inc.
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