Three point hitch draft sensing system

A draft sensing mechanism for a three point hitch includes a hitch frame attached to a frame of a vehicle. The hitch frame includes left and right link supports for coupling to left and right draft links and left and right draft bars. Each draft bar has a first portion attached to a corresponding on...

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Bibliographische Detailangaben
Hauptverfasser:	HEIMBUCH BENJAMIN J, TILKES ANDREW M, ROTH JONATHAN T, KREIS EDWIN R, EARLEY MARK S, BOWMAN DENNIS A, FISCHER DOUGLAS R, KOLLATH MICHAEL D
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS FISHING FORESTRY HUMAN NECESSITIES HUNTING MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES ORIMPLEMENTS, IN GENERAL PERFORMING OPERATIONS PHYSICS SOIL WORKING IN AGRICULTURE OR FORESTRY TARIFF METERING APPARATUS TESTING TRANSPORTING TRAPPING VEHICLE CONNECTIONS VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A draft sensing mechanism for a three point hitch includes a hitch frame attached to a frame of a vehicle. The hitch frame includes left and right link supports for coupling to left and right draft links and left and right draft bars. Each draft bar has a first portion attached to a corresponding one of the link supports, and a second portion positioned rearwardly and inwardly with respect to its first portion. Draft forces applied by the draft links to the link supports are transmitted to the second portions of the draft bars. A linkage unit sums the draft forces from the draft bars and includes a draft force transducer which generates a draft force signal in response to deflection of the draft bars.