Wing lift for foldable implements

Details Wing lift for foldable implements Wing lift for foldable implements

1983-08-17

1985-08-20

Johnson, Richard J.

Earth working

Plural wheeled implements

Outrigged implement adjustable inwardly

172456, 172501, A01B 6332

Patent

active

045358486

ABSTRACT:
Wings of multiple section farm implements are folded by hydraulic cylinders each having a knee joint between the piston rod and a single arm which swings against a lug on the wing as the rod is actuated to lift the wing. A trunnion-notch arrangement operating in conjunction with a lost motion connection and an anti-jackknife device maintains a rod-arm interlock during a portion of each cycle of swinging of the wing to and from its folded position.

REFERENCES:
patent: 3680172 (1972-08-01), Couser
patent: 3783951 (1974-01-01), Gugin
patent: 3797580 (1974-03-01), Roth
patent: 3814191 (1974-06-01), Tilburn
patent: 3844358 (1974-10-01), Shuler
patent: 3944001 (1976-03-01), Warner et al.
patent: 4023623 (1977-05-01), Anderson
patent: 4074766 (1978-02-01), Orthman
patent: 4116282 (1978-09-01), Hansen
patent: 4178998 (1979-12-01), Rockwell
patent: 4232747 (1980-11-01), Pfenninger et al.
patent: 4415043 (1983-11-01), Hadler et al.
patent: 4453601 (1984-06-01), Orthman et al.

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