Control system for field makers of an agricultural machine

Details Control system for field makers of an agricultural machine Control system for field makers of an agricultural machine

1997-03-27

1998-11-10

Carone, Michael J.

Earth working

With earth marker

172 2, 172130, A01B 2500

Patent

active

058330100

ABSTRACT:
A control apparatus for use with two opposed ground markers of an agricultural machine comprises a hydraulic circuit including a plurality of hydraulic valves for communicating fluid actuate movements of the marker cylinders and an electrical control system including a plurality of manually operable actuating switches to effect operation of said hydraulic valves. Each of the switches provides an output in response to a single actuation thereof and there is provided an output timer operable to effect operation of the hydraulic valves for a period of time sufficient to effect a stroke of the cylinders. The electrical control system provides an output in response to actuation of selected ones of the switches only in response to actuation of the switch for a predetermined time period sufficient to avoid inadvertent actuation. The switches include a first switch for actuating extension of the first marker and a second switch for actuating extension of the second marker and a single third switch for effecting retraction movement of both the first and second markers. Four indicator lights are provided for indicating the position of the markers and a control unit for effecting flashing of a respective one of the indicator lights when the respective marker is moving toward a respective one of the positions.

REFERENCES:
patent: 4067394 (1978-01-01), Deckler
patent: 4365672 (1982-12-01), Robinson, Jr. et al.
patent: 4381036 (1983-04-01), Fardal et al.
patent: 4488476 (1984-12-01), Diel et al.

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