Patent ID: 6543578
Filing Date: 2003-04-08
Classification: B66C,B66F,E02F,G05B

Abstract:
A mobile machine comprising an aerial work platform, said aerial work platform system comprising:a chassis, elevating mechanisms, a platform capable of carrying an operator; and a control device, mounted on the operator's platform, for effecting motion of said aerial work platform, said control device including: a fixed portion that is secured to the operator platform; a first pivotable portion, the pivotable portion being pivotable on the fixed portion and being urgeable clockwise or counterclockwise relative thereto; a control boom including a control inner boom that is inwardly and outwardly urgeable along a longitudinal axis of said control boom to impart corresponding movement of a portion of the elevating mechanisms, the control boom having a first end and a second end that is pivotably coupled to the first pivotable portion; a handle being coupled to the first end of the control boom; at least one first switch system, a portion of the first switch system being disposed on a moveable portion of the pivotable portion, the first switch system being activated by the motion of the pivotable portion upon urging by the operator, and at least one second switch system being disposed on a moveable portion of the control boom, a third switch system being disposed on a portion of the control boom, the second switch system and the third switch system being activated by the motion of the control boom upon urging by the operator, said first, second, and third switch systems enabling signals whereby the aerial work platform may be controlled; whereby a portion of the control device enhances comprehension of the operation of the aerial work platform by the operator.