System for raising and lowering communications equipment

Details System for raising and lowering communications equipment System for raising and lowering communications equipment

E - Fixed Constructions

04

H

E04H 12/18 (2006.01) E04H 12/34 (2006.01) F21V 21/38 (2006.01) H01Q 1/12 (2006.01)

Patent

CA 2228135

A system (10, 400) system for lowering and raising telecommunications equipment along a mast pole (24, 424). The system (10, 400) comprises a mast pole (24, 424), a platform means (32, 432), a frame means (28, 428), a plurality of lift cables (36, 436), a hoisting means (e.g., 52, 452) and a transition means (40, 440). The platform means (32, 432) surrounds the external surface of the mast pole (24, 424) and is moveable along the length thereof. The platform means (32, 432) is arranged for mounting of telecommunications equipment thereon. The frame means (28, 428) is attached at the open upper end of the mast pole shaft (24, 424) and comprises pulley means (e.g., 194, 224, 240), means for guiding at least one lift cable (e.g., 200) and means for guiding at least one telecommunications cable, i.e., signal cable or power cable. Each lift cable (36, 436) has a first end connected to the platform means (32, 432) and extends through the guiding means and through the passageway of the mast pole (24, 424). The hoisting means (e.g., 52, 452) is secured to the lower end of the mast pole (24, 424) and is provided for selectively raising and lowering the platform means (32, 432). The pulley means (e.g., 194, 224, 240) includes a winch cable (44, 444) having a free end. The transition means (40, 440) is located within the passageway of the mast pole (40, 424) and is provided to couple the second end of the lift cables (36, 436) to the free end of the winch cable (44, 444). The transition means (40, 440) also provides a means for retaining at least one telecommunications cable therein (e.g, 120, 128, 528).

L'invention porte sur un système (10, 400) permettant d'élever ou d'abaisser un équipement de télécommunications le long d'un mât (24, 424) et comportant: le mât (24, 424), une plate-forme (32, 432), un cadre (28, 428), des câbles de hissage (36, 436), un système de treuils (par exemple 52, 432) et un moyen de transition (40, 440). La plate-forme (32, 432), qui entoure la surface extérieure du mât (24, 424) et peut se déplacer sur sa longueur, est conçue pour recevoir les équipements de télécommunications. Le cadre (28, 428), qui est fixé à l'extrémité supérieure ouverte du mât (24, 424), comporte des poulies (par exemple 194, 224, 240), des moyens de guidage d'au moins un câble de hissage (par exemple 200) et des moyens de guidage d'au moins un câble de télécommunications, c'est-à-dire, de transmission de signaux ou de puissance. Les câbles de hissage (36, 436),reliés par une extrémité à la plate-forme (32, 432), empruntent les moyens de guidage du mât (24, 424). Le système de treuils (par exemple 52, 432), fixé à l'extrémité inférieure du mât (24, 424), est conçu pour élever ou abaisser la plate-forme (32, 432). Les poulies (par exemple 194, 224, 240) comprennent un câble de treuil (44, 440) dont l'extrémité est libre. Le moyen de transition (40, 440), placé dans le passage du mât (24, 424), sert à réunir la deuxième extrémité des câbles de hissage (36, 436) à l'extrémité libre du câble de treuil (44, 440). Le moyen de transition (40, 440) permet de retenir au moins un câble de télécommunications (par exemple 120, 128, 528).

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