Elevator system with bottom tensioning means

B - Operations – Transporting – 66 – B

Patent

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Details

B66B 7/06 (2006.01)

Patent

CA 2727014

An elevator system (1) comprises an elevator cabin (7) and a counterweight (18) associated with the elevator cabin (7), said cabin and counterweight being fixed to a pulling means (10). Also, a drive pulley (17) is provided for moving the pulling means (10). A bottom tensioning means (19) is fixed to the counterweight (18) and to the elevator cabin (7). A tensioning means weight (22) tensions the bottom tensioning means (19). In an end position of the counterweight (18), the elevator cabin (7) can continue to move when the pulling means (10) is moved further by the drive pulley (17). This moves the tensioning means weight (22) at half the speed of the elevator cabin (7), for example. A measuring device (80) is provided for the tensioning means weight (22) for detecting such a motion of the tensioning means weight (22). This allows a triggering of an emergency stop of the elevator cabin (7).

L'invention concerne un système d'ascenseur (1) présentant une cabine d'ascenseur (7) et un contrepoids (18) associé à la cabine d'ascenseur (7), qui sont suspendus à un mécanisme de traction (10). En outre, une poulie motrice (17) tourne sur le mécanisme de traction (10). Un moyen de sous-tension (19) est suspendu au contrepoids (18) et à la cabine d'ascenseur (7). Un poids de moyen de tension (22) tend le moyen de sous-tension (19). Dans une position finale du contrepoids (18), la cabine d'ascenseur (7) peut continuer à se déplacer, lorsque le mécanisme de traction (10) continue à être guidé par la poulie motrice (17). Le poids de moyen de tension (22) peut se déplacer, par exemple à une vitesse deux fois moins importante que celle de la cabine d'ascenseur (7). Un dispositif de mesure (80) pour le poids de moyen de tension (22) est conçu pour détecter un tel déplacement du poids de moyen de tension (22). Ainsi, un arrêt d'urgence de la cabine d'ascenseur (7) peut être déclenché.

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