Agricultural implement frame elevating mechanism

Details Agricultural implement frame elevating mechanism Agricultural implement frame elevating mechanism

1976-03-23

1977-08-23

Johnson, Richard J.

Earth working

With ground support vertically adjustable relative to frame

Power operated adjustment

280 4323, A01B 6506

Patent

active

040434036

ABSTRACT:
The supporting transport (or depth gauge) wheels of an agricultural implement are raised and lowered by means of a hydraulic-actuated piston cylinder which pivotally connects to one end of a bell crank lever made rigid with a pivot shaft rotatably journalled to the implement frame and to which shaft the wheel supports are also rigid. The opposite end of the piston cylinder pivotally connects to a cradle which has its near end pivotally connected to the other end of the bell crank lever and its remote end yieldably connected to the implement frame as by a pin and slot connection (or a pivoted link) which accomodates horizontal movement with little or no vertical displacement of said remote end in response to extension and retraction of the piston cylinder.

REFERENCES:
patent: 2840971 (1958-07-01), Greeson
patent: 2938588 (1960-05-01), Stein
patent: 3228727 (1966-01-01), Paulson
patent: 3627157 (1971-12-01), Blatchly
patent: 3648780 (1972-03-01), Fueslein

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