The present application relates to elevator technology, in particular to a safety chain device and a safety protection system for an escalator. The safety chain device according to an aspect of the application comprises: a safety chain including a plurality of protective switches connected in series, each of the protective switches is configured to switch from a first state to a second state in the event of abnormal operation of a respective corresponding drive chain; a resistive network encoder coupled with the safety chain and having a plurality of encoder output values, each of the encoder output values corresponds to one of combinations of states of the plurality of protective switches; a processor coupled with the resistive network encoder and configured to output a level signal corresponding to the encoder output values; a first controlled current source coupled with the safety chain and configured to output a first current corresponding to a current flowing through the safety chain; and a second controlled current source coupled with the processor and configured to output a second current corresponding to the level signal.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    SAFETY CHAIN DEVICE AND SAFETY PROTECTION SYSTEM FOR ESCALATOR


    Weitere Titelangaben:

    SICHERHEITSKETTENVORRICHTUNG UND SICHERHEITSSCHUTZSYSTEM FÜR ROLLTREPPE
    DISPOSITIF DE CHAÎNE DE SÉCURITÉ ET SYSTÈME DE PROTECTION DE SÉCURITÉ POUR ESCALIER ROULANT


    Beteiligte:
    MA KUN (Autor:in)

    Erscheinungsdatum :

    2023-10-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B66B Aufzüge , ELEVATORS



    Safety chain device and safety protection system for escalator

    MA KUN | Europäisches Patentamt | 2023

    Freier Zugriff

    SAFETY CHAIN DEVICE AND SAFETY PROTECTION SYSTEM FOR ESCALATOR

    MA KUN | Europäisches Patentamt | 2023

    Freier Zugriff

    Safety protection device of escalator

    JIANG CUNZHI / CHENG ZHIGANG | Europäisches Patentamt | 2015

    Freier Zugriff

    Escalator safety device

    HU LIANG / DAI CHENGJIE / ZHAO YONGJIE et al. | Europäisches Patentamt | 2020

    Freier Zugriff

    ESCALATOR SAFETY DEVICE

    KUMAGAI KAZUAKI | Europäisches Patentamt | 2015

    Freier Zugriff