Earth working – Draft – pitch or ground level responsive depth control
Patent
1999-07-01
2000-12-26
Novosad, Christopher J.
Earth working
Draft, pitch or ground level responsive depth control
172 4, 91404, 91443, 91445, 91463, F15B 700
Patent
active
061643858
ABSTRACT:
An automatic depth control system is disclosed. The system includes a Console and remote Controller mounted in the tractor cab, power beyond Valving, and Depth Sensors, either ground contact or non-ground contact, mounted on the frame of the implement. The depth sensing system is provided to sense the actual penetration of an implement tool by determining the height of the implement frame above the ground. A circuit system is provided to receive the depth signal and to signal power beyond valving that will effect hydraulic corrections in order to maintain the select depth penetration. The Console includes an instrument panel having a toggle switch with AUTO, LOCK and MANUAL positions, an LED showing depth of tool penetration and a bargraph depicting variations from a desired depth and flashing lights on the bargraph to show depth corrections in process. The Console also includes a depth window in which no hydraulic correction would be made, a sensitivity switch, depth sensor switches and an UP/REPHASE switch. A remote Controller provides for a five position, mechanical hold toggle switch to provide separate and distinct settings, a rocker switch to vary depth selections in temporary memory, a RUN/HOLD position on existing tool depth penetration, and a SET switch to place settings from temporary to permanent memory. Power beyond valving, incorporating function with either gear, pressure compensated or load sensing hydraulic pumps, is mounted in line with existing hydraulics to provide hydraulic depth selections in either automatic or manual modes.
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