Leveling system for a wheeled implement

Details Leveling system for a wheeled implement Leveling system for a wheeled implement

1981-03-23

1983-04-12

Marlo, George J.

Earth working

With actuator on trailing ground supported frame for moving...

Vertically

172456, A01B 59042

Patent

active

043794912

ABSTRACT:
A leveling system for a wheeled implement wherein the implement includes a frame with ground-engaging tools, a forwardly extending hitch structure, support wheels mounted to the frame, and wheel lift cylinders attached between the frame and the support wheels for raising or lowering the frame relative to the ground. The leveling system includes a fore-and-aft leveling mechanism and a controller. The fore-and-aft leveling mechanism is attached between the frame and the hitch structure for maintaining the frame substantially parallel to the ground during both transport and working operations. The controller uses a control lever which activates both the wheel lift cylinders and the fore-and-aft leveling mechanism. Movement of the control lever permits the frame and the hitch structure to move relative to the ground so that the frame can remain parallel to the ground at all times, even when the frame is being raised or lowered on the support wheels.

REFERENCES:
patent: 2641886 (1953-06-01), Graham
patent: 2985247 (1961-05-01), Oehler et al.
patent: 3082830 (1963-03-01), McKay
patent: 3734199 (1973-05-01), Tsuchiya et al.
patent: 3809165 (1974-05-01), Miller
patent: 3912017 (1975-10-01), Rehn
patent: 3912018 (1975-10-01), Brundage et al.
patent: 4148362 (1979-04-01), Orth

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