Method of monitoring elevator hoistway doors

Details Method of monitoring elevator hoistway doors Method of monitoring elevator hoistway doors

B - Operations, Transporting

66

B

B66B 13/16 (2006.01) B66B 13/14 (2006.01)

Patent

CA 2427417

In the case of a method for monitoring shaft doors (7) of a lift installation (1) the closed setting of the shaft door panels (8) is monitored by at least one contactlessly acting shaft door monitoring sensor (10) emitting electromagnetic waves, wherein at least during specific detection phases a beam (10.3) in the form of focussed electromagnetic waves and extending over several storeys is emitted by an emitter (10.1) of the shaft door monitoring sensor (10) and detected by a receiver (10.2), the beam being influenced, if one of the shaft door panels (8) is not completely closed and/or if one of the shaft door locks (22) is not disposed in locking setting, in such a manner that it is recognised by the receiver (10.2) of the shaft door monitoring sensor that one of the shaft doors (7) is not completely closed and/or is not locked, wherein this information is signalled by the shaft monitoring sensor (10) to the lift control.

Méthode de surveillance de portes de cage (7) d'un ascenseur (1). La position fermée des panneaux (8) des portes de la cage est commandée par au moins un capteur de surveillance sans contact (10) qui émet des ondes électromagnétiques. Pendant au moins certaines étapes précises de la détection, un faisceau (10.3) constitué d'ondes électromagnétiques focalisées, qui s'étend sur plusieurs étages, est émis par un émetteur (10.1) du capteur de surveillance (10) et capté par un récepteur (10.2). Le faisceau est affecté si l'un des panneaux (8) des portes de cage n'est pas complètement fermé et/ou si l'un des verrous (22) des portes de cage n'est pas en position de verrouillage, de sorte que le récepteur (10.2) du capteur de surveillance reconnaît que l'une des portes de cage (7) n'est pas entièrement fermée et/ou n'est pas verrouillée. Cette information est envoyée par le capteur de surveillance (10) à la commande de l'ascenseur.

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