Frame leveling system for tillage implements

Details Frame leveling system for tillage implements Frame leveling system for tillage implements

1998-06-03

2000-03-14

Batson, Victor

Earth working

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

Vertically

172677, A01B 5900

Patent

active

060359439

ABSTRACT:
An agricultural implement provides improvements in ground-working implements having both a lowered ground-working mode and a raised transport mode wherein structure is provided to offset the effects of the moment forces created in the working mode. A fluid circuit is connected to a fluid actuator for controlling forces exerted thereby between a hitch member and the implement main frame and it is operable in a working mode to exert a resilient biasing force on the hitch member thus enabling pivotal floating motion of the hitch member while simultaneously countering force moments applied to the main frame by the ground-working tool. This system is also operable in a transport mode wherein the actuator exerts sufficient force between the hitch member and the forward end of the main frame as to assist in lifting and maintaining the implement in a raised transport mode.

REFERENCES:
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patent: 4308920 (1982-01-01), Floyd et al.
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patent: 4379491 (1983-04-01), Riewerts et al.
patent: 4450917 (1984-05-01), Hake
patent: 5152347 (1992-10-01), Miller
patent: 5348101 (1994-09-01), Fox et al.
patent: 5363924 (1994-11-01), Foley et al.
patent: 5687798 (1997-11-01), Henry et al.
patent: 5855245 (1999-01-01), Gerein

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