Traversing hoists – Having horizontally swinging boom or bridge – Having fluid ram directly actuating load cable or sheave...
Patent
1991-06-05
1992-09-15
Grosz, Alexander
Traversing hoists
Having horizontally swinging boom or bridge
Having fluid ram directly actuating load cable or sheave...
5 811, 5 881, 212218, 212213, A61G 714, B66C 1700
Patent
active
051470519
ABSTRACT:
A hoisting device for individuals includes a hoisting band which can be elevated and lowered in the vertical direction. The hoisting device comprises an elongated bracket on which a driving device is attached. The driving device is arranged to displace a pivot backwards and forwards. A band runs from an attachment to the bracket around a movable guide roller and around a pulley wheel down into a loop on which the individual is attached. While being displaced, the pivot moves the guide roller, thus extending the band in the longitudinal direction of the bracket and thereby retracting the loop. The driving device is a linearly operating electric motor. In order to improve the hoisting possibilities, a trolley is arranged to be able to freely run along the continuous bracket whereby the band, which runs from the trolley on a first guide pulley and downwards in order to form a loop under the continuous bracket and up on a second guided pulley, moves with the trolley. The second end of the band is secured to the continuous bracket.
REFERENCES:
patent: 4125907 (1978-11-01), Juninger et al.
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