Spring mounted standard assembly

Details Spring mounted standard assembly Spring mounted standard assembly

1981-12-02

1984-08-07

Johnson, Richard J.

Earth working

Tool, standard or connection

Spring biased or formed tool or tool part

A01B 6104, A01B 3524

Patent

active

044638132

ABSTRACT:
A spring trip standard assembly for a chisel plow or the like, the standard assembly having a compact single coil spring structure with a trip geometry producing a high initial trip force and a reduced maximum to initial trip force ratio. The horizontal trip force remains above the initial trip force through greater than half the trip height and then the trip force decreases. By reduction of the ratio of maximum to initial trip force, a heavy duty standard assembly is provided which may be used on lightweight tool frames originally designed for high trip force ratio standards having lower initial spring trip forces.

REFERENCES:
patent: 2338374 (1944-01-01), Baldwin
patent: 2850956 (1958-09-01), Rogers
patent: 2906353 (1959-09-01), Rogers
patent: 3258076 (1966-06-01), Groenke
patent: 3486566 (1969-12-01), Nja
patent: 3493055 (1970-02-01), Van Peurem
patent: 3700039 (1972-10-01), Essex
patent: 4078615 (1978-03-01), Kelly
Kverneland Chisel Plough, 711458 10.000-5-79.
Kvernelands Plows Brochure MK Jaeren 712359 50.000.1.74.
Dakon Automatic Reset Deep Till/Chisel Plow Brochure.

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