Elevator apparatus

B - Operations – Transporting – 66 – B

Patent

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Details

B66B 5/12 (2006.01)

Patent

CA 2543848

An elevator apparatus has a car suspended by a main rope through the intermediation of a shackle spring. The car is equipped with a displacement sensor for measuring the displacement amount of the main rope with respect to the car. The displacement sensor is electrically connected to an abnormality control device mounted on the car. The abnormality control device obtains the magnitude of the tension of the main rope based on information from the displacement sensor, and selectively outputs a braking command signal to one of the following devices: an operation control device, a brake device, and an emergency stop device, according to the magnitude of the tension of the main rope.

Ascenseur, dans lequel une cabine est suspendue à des câbles principaux par l~intermédiaire de ressorts à jumelles. Un capteur de déplacement mesurant la quantité de déplacement des câbles principaux par rapport à la cabine est installé sur la cabine. Le capteur de déplacement est raccordé électriquement à un dispositif de commande d~état anormal monté sur la cabine. Le dispositif de commande d~état anormal obtient les amplitudes des tensions des câbles principaux en utilisant des informations provenant du capteur de déplacement et fournit de façon sélective des signaux d~instruction de freinage à un dispositif de commande de fonctionnement ou à un dispositif de freinage ou encore à un dispositif d~arrêt d~urgence en fonction des amplitudes des tensions des câbles principaux.

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