Agricultural implement with raisable lift frame rotatable about

Details Agricultural implement with raisable lift frame rotatable about Agricultural implement with raisable lift frame rotatable about

1985-09-23

1988-01-26

Stouffer, Richard T.

Earth working

Plural wheeled implements

Outrigged implement adjustable inwardly

111 57, 172466, 172484, 172625, 172662, 280411A, 280415R, A01B 7300

Patent

active

047211687

ABSTRACT:
An agricultural planter has a main carrier frame attached to a tractor by an hydraulically actuated telescoping tongue. Individual row units are mounted on a lift frame which in the illustrated embodiment has a center section and left and right wing sections. The wing sections are mounted to the center section for independent vertical pivotal motion relative to the center section in the use position. Power locks secure the wings rigidly to the center section for road transport. The lift frame is mounted to the carrier frame by a vertical pivot post and an hydraulically powered lift linkage. The pivot post may be rotated by an hydraulic cylinder under control of the operator. In the use position, the hitch tongue is retracted and the lift frame is lowered and extends transverse of the direction of travel. For transport, the tongue is extended, the lift frame is made rigid, then elevated by a master/slave cylinder arrangement which powers the lift linkage to a transport height, and then the lift frame rotated so that it extends in the direction of travel. The lift frame is then locked in that position for end-wise transport on the carrier frame.

REFERENCES:
patent: 3767231 (1973-10-01), Grosse-Rhode
patent: 4137852 (1979-02-01), Pratt
patent: 4319643 (1982-03-01), Carter et al.
patent: 4518046 (1985-05-01), Rettig et al.

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