PROBLEM TO BE SOLVED: To provide an emergency elevator that enables secondary fire-fighting operation even if ground fault occurs in a cable of a riding door switch in the event of fire and, as a result, a safety circuit power source protection element operates.SOLUTION: An emergency elevator according to an embodiment comprises: a secondary fire-fighting operation switch, a safety circuit, a safety circuit power source protection element, a fire-fighting operation switch, and an emergency operation control device. The fire-fighting operation switch is a switch for switching to a state that enables a secondary fire-fighting operation when the secondary fire-fighting operation is not allowed despite ON operation of the secondary fire-fighting operation switch. In a case where the fire-fighting operation switch is On operated when the secondary fire-fighting operation switch is ON operated and a power source to the safety circuit is shut off by the operation of the safety circuit power source protection element due to the occurrence of ground fault in a cable of a riding door switch, the emergency operation control device disconnects the riding door switch from a power source, recovers a power source to the safety circuit, and enables the secondary fire-fighting operation.SELECTED DRAWING: Figure 1

    【課題】 火災発生時に乗場ドアスイッチのケーブルで地絡が発生して安全回路電源保護素子が動作しても、二次消防運転を可能とする非常用エレベータを提供する。【解決手段】 実施形態によれば非常用エレベータは、2次消防運転スイッチと、安全回路と、安全回路電源保護素子と、消防運転時操作スイッチと、非常運転制御装置とを備える。消防運転時操作スイッチは、2次消防運転スイッチを “ON” 操作しても2次消防運転が不可能なときに2次消防運転が可能な状態に切り替えるためのスイッチである。非常運転制御装置は、2次消防運転スイッチが “ON” 操作され、乗場ドアスイッチのケーブルで地絡が発生し安全回路電源保護素子の動作により安全回路への電源が遮断されているときに、消防運転時操作スイッチが “ON” 操作されると、乗場ドアスイッチを電源から切り離し、安全回路への電源を復帰させて2次消防運転を可能にする。【選択図】図1


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    Title :

    EMERGENCY ELEVATOR


    Additional title:

    非常用エレベータ


    Contributors:

    Publication date :

    2018-01-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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