Rotary hoe

Details Rotary hoe Rotary hoe

1981-05-18

1983-08-16

Johnson, Richard J.

Earth working

Rolling, rotating or orbitally moving tool

Tool has circumferentially spaced teeth, tines, blades or...

172573, 384291, A01B 3908

Patent

active

043986080

ABSTRACT:
A hoe that includes a transversely extending tool bar, a pivot shaft mounted on the rear and lower portion of the tool bar and extending parallel thereto, a plurality of support arms spaced along the tool bar and pivotally mounted on the shaft, each arm having a forward portion for engaging the tool bar and a rearward portion for rotatably supporting a hoe wheel, a spring extending between each arm and the tool bar to bias the hoe wheel downwardly with each arm forward portion providing a stop with the tool bar to dispose the hoe wheels in the same operative position, and each arm having a hub pivotally mounted on the pivot shaft and including preferably a plurality of elongated grooves extending parallel and adjacent the shaft the full length of the hub and a lower drain in communication with the grooves to remove soil moving between hub and shaft to free the arm and thus hoe wheel for movement by the spring.

REFERENCES:
patent: 1603543 (1926-10-01), Jett
patent: 1957077 (1934-05-01), Ratigan
patent: 2087882 (1937-07-01), Brown
patent: 3734201 (1973-05-01), Zaun
patent: 4194575 (1980-03-01), Whalen

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