公开(公告)号：US3606933A

公开(公告)日：1971-09-21

申请号：US3606933D

申请日：1968-10-31

申请人： JOHN CLARENCE ALLEN JR ,  ROY RODGERS BRASHIER

发明人： RUSHING KARL ,  ALLEN JOHN CLARENCE JR

IPC分类号： A01B69/04 ,  G05D1/02 ,  B62D5/04

CPC分类号： A01B69/008 ,  G05D1/0219 ,  G05D1/0265 ,  G05D2201/0201

摘要： AUTOMATIC FARMING APPARATUS FOR USE IN FARMING A FIELD WHEREIN A TRACOT PULLING A FARMING IMPLEMENT SUCH AS A PLOW IS ADAPTED TO TRACE A PATH DEFINED BY A PLURALITY OF MAIN TRACING LINES. A PAIR OF SECONDARY TRACING LINES ARE BURIED OUTSIDE THE EDGES OF THE FIELD, AND MEANS ARE PROVIDED FOR CAUSING THE TRACOR TO LEAVE A MAIN TRACING LINE AT THE END OF EACH ROW, AND AUTOMATICALLY MOVE OVER TO THE ADJACENT SECONDARY TRACING LINE WHICH IT TRACES UNTIL IT IS TURNED TOWARD ANOTHER MAIN TRACING LINE. THE TURNING OPERATION BETWEEN THE MAIN AND SECONDARY TRACING LINES IS CONTROLLED AS A FUNCTION OF THE DISTANCE TRAVELLED BY THE TRACTOR. THE MAIN TRACING LINES COMPRISE A PLURALITY OF PARALLEL CONNECTED WIRES EXTENDING FROM EDGE TO EDGE ACROSS THE FIELD. AN ADDITIONAL PAIR OF CONTROL LINES ARE BURIED AT RESPECTIVE EDGES OF THE FIELD TO CONTROL THE OVERALL SEQUENCE OF THE VEHICLE TURN SEQUENCE.