MY120129A

MY120129A - Personnel carrying vehicle

Info

Publication number: MY120129A
Authority: MY
Inventors: Kevin A Gilliland; Steven R Pulskamp; Matthew P Ranly; Daniel L Sherman; David B Smith; Harold A Stammen; Robert J Stauffer; Thomas L Bidwell; Eugene G Burns; Bradley A Burns; Joseph H Knapschaefer; Paul J Leasor; Thomas W Linn; John F Mcclusky; Leif A Norland
Original assignee: Crown Equip Corp
Priority date: 1997-09-08
Filing date: 1997-09-08
Publication date: 2005-09-30

Abstract

A PERSONNEL CARRYING VEHICLE (10) COMPRISING A SELF PROPELLED, STEERAB1E BODY (20), A TELESCOPING MAST (30) ATTACHED TO AND EXTENDING UPWARDLY FROM SAID BODY, AND A PERSONNEL COMPARTMENT (40) ATTACHED TO ME MAST AND PROVIDED WITH A RAIL MEMBER (42) THAT EXTENDS FROM THE MAST AND AROUND THE SIDES. A PAIR OF GATE MEMBERS (43, 44), WHICH ARE PIVOTALLY ATTACHED TO THE RAIL MEMBER AND TO THE FLOOR (41) OF THE COMPARTMENT, ARE MOVABLE FROM A CLOSED POSITION TO AN OPEN POSITION WHEREIN SAID GATE MEMBERS EXTEND INTO THE COMPARTMENT. THE MAST (30) EXTENDS UPWARDLY AND FORWARDLY OF THE BODY AT AN ANGLE OF APPROXIMATELY FIVE DEGREES TO THE TOP OF THE RAIL; THIS PROVIDES THE OPERATOR (50) WITH UNOBSTRUCTED ACCESS TO ANYTHING ABOVE THE TOP EDGE OF ME RAIL, AND THE FORWARD TILT OF THE MAST ENLARGES THE UPPER PORTION OF THE COMPARTMENT, NEAR THE WAIST OF THE OPERATOR, THUS ACCOMMODATING THE OPERATOR COMFORTABLY WITHOUT INCREASING ME LENGTH OF THE VEHICLE; IT ALSO CAUSES THE CENTER OF GRAVITY OF THE VEHICLE TO MOVE FORWARD, TOWARD THE CENTER OF THE VEHICLE, AS THE COMPARTMENT IS RAISED. THE VEHICLE (10) IS DRIVEN BY ELECTRIC MOTORS (82, 83) WHICH ARE LOCATED UNDER THE OPERATOR COMPARTMENT AND ATTACHED TO THE DRIVE WHEELS (24) THROUGH A GEAR TRAIN TO PERMIT THE FLOOR OF THE COMPARTMENT TO BE POSITIONED AS CLOSE TO THE GROUND LEVEL AS POSSIBLE. CONTROL HANDLES ARE MOUNTED WITHIN THE PERSONNEL COMPARTMENT, WITH ONE HANDLE CONTROLLING STEERING AND THE OTHER HANDLE CONTROLLING TRACTION. SENSORS ENSURE THE OPERATOR'S HANDS ARE ON BOTH CONTROL HANDLES AND BOTH FEET ARE PROPERLY POSITIONED ON THE FLOOR BEFORE THE VEHICLE CAN BE MOVED OR THE PLATFORM (27) RAISED; THIS ENSURES A FOUR POINT STANCE, PROVIDING FOR OPERATOR STABILITY AND THAT THE OPERATOR'S HANDS AND FEET ARE WITHIN THE OPERATOR'S COMPARTMENT-ANYTIME THE VEHICLE IS BEING MOVED OR DURING LIFTING OR LOWERING OPERATIONS. GATE INTERLOCK SWITCHES ARE PROVIDED TO RESTRICT OR PREVENT TRAVEL OF THE VEHICLE UNDER CERTAIN CONDITIONS