Implement with resiliently mounted coulter gangs

Details Implement with resiliently mounted coulter gangs Implement with resiliently mounted coulter gangs

1986-09-29

1988-02-16

Johnson, Richard J.

Earth working

With actuator adapted to lift tool for transport on wheeled...

Servo-motor forces tool down

172178, 172500, 172572, A01B 4902, A01B 6104, A01B 6332

Patent

active

047249102

ABSTRACT:
An agricultural implement is equipped with a plurality of earthworking tools spaced from one another in the fore and aft direction. One of the tools is adjustable between working and nonworking positions on a main frame by a hydraulic actuator connected to the main frame by a resiliently cushioned support which includes a spring loaded link. The one tool includes a coulter gang supported on a subframe by a pair of U-shaped springs. The deflection of the U-shaped springs and the spring loaded link allows the coulter gang to pass over relatively large boulders or the like without raising the implement frame to a significant extent and without causing the relief valve in the actuator hydraulic system to open.

REFERENCES:
patent: 2300192 (1942-10-01), Allen
patent: 3014540 (1961-12-01), Youngberg
patent: 3566974 (1971-03-01), Kopaska
patent: 4116140 (1978-09-01), Anderson
patent: 4313503 (1982-02-01), Good
patent: 4407372 (1983-10-01), Roseboom
patent: 4546832 (1985-10-01), Dietrich

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