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(11) | EP 0 117 120 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Control mechanism for access equipment |
| (57) In access equipment of the type in which a working platform or cage is carried at
the upper end of a boom assembly comprising a lower boom pivotally mounted on a support
structure and an upper boom pivotally connected to the lower boom and in which the
pivoting movements are effected by drive means operated by hand levers, stop members
are provided associated with the hand levers and the position of the stop members
is so controlled in accordance with the angle between the upper boom and the horizontal
as to prevent the hand levers being moved into or remaining in operating positions
which would increase the angle beyond a predetermined value. |