Safety brake for elevator without counterweight

Details Safety brake for elevator without counterweight Safety brake for elevator without counterweight

B - Operations, Transporting

66

B

B66B 5/04 (2006.01) B66B 11/08 (2006.01)

Patent

CA 2571442

Traction sheave elevator without counterweight and method for braking an elevator, in which elevator the elevator car is suspended by means of hoisting ropes consisting of a single rope or several parallel ropes, said elevator having a traction sheave which moves the elevator car by means of the hoisting ropes. In the elevator, when the elevator car is moving upwards in an emergency stop situation the braking of the operating brake of the elevator is at least partially prevented for at least a part of the stopping distance of the elevator.

L'invention concerne un ascenseur à poulie d'entraînement exempt de contrepoids, ainsi qu'un procédé pour le freinage d'un ascenseur. Dans l'ascenseur selon l'invention, la cabine d'ascenseur est suspendue au moyen de câbles de levage consistant en un câble unique ou en plusieurs câbles parallèles, l'ascenseur comprenant une poulie d'entraînement qui déplace la cabine d'ascenseur au moyen des câbles de levage. Selon l'invention, lorsque la cabine d'ascenseur se déplace vers le haut dans une situation d'arrêt d'urgence, l'actionnement du frein de service de l'ascenseur est au moins partiellement empêché pour au moins une partie de la distance d'arrêt de l'ascenseur.

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