Disk harrow with cushion gang

Details Disk harrow with cushion gang Disk harrow with cushion gang

1981-09-17

1983-10-04

Johnson, Richard J.

Earth working

Rolling, rotating or orbitally moving tool

With spring means other than for detent

267 36R, A01B 2108, A01B 3528, A01B 6104

Patent

active

044073720

ABSTRACT:
A harrow that includes a frame having a generally laterally extending rigid beam, a shaft located below the beam, a plurality of spaced disks mounted on the shaft for rotation therewith and a pair of spaced bearing standards for resiliently mounting the shaft on the beam with each standard including a first generally C-shaped spring having an upper portion connected to the beam and the lower portion rotatably supporting the shaft for low disk impact loads and a second C-shaped spring nested within the first C-shaped spring but spaced therefrom, the first spring, as an increasing portion of its C-periphery contacts the second spring, providing therewith a graduated, higher spring rate at high disk impact loads.

REFERENCES:
patent: 417746 (1889-12-01), Shank
patent: 1167938 (1916-01-01), Scheidt
patent: 1173850 (1916-02-01), Oliver
patent: 2259890 (1941-10-01), Hipple
patent: 2750861 (1956-06-01), Erwin
patent: 3279869 (1966-10-01), Anderson
patent: 3640348 (1972-02-01), Womble
patent: 4066132 (1978-01-01), Rehn
patent: 4333535 (1982-06-01), Hentrich
Krause Tandem Disc Harrow Advertising Brochure of Krause Plow Corp. Hutchinson KS 1978.

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