To obtain a passenger conveyor alarm system capable of stopping an alarm by an alarm device during a maintenance inspection and issuing an alarm more securely after a completion of the maintenance inspection.SOLUTION: A passenger conveyor alarm system comprises: a manhole screw 4 arranged detachably to a manhole cover 2 for opening and closing an aperture of a machine room 1; a screw attachment determination device 31 for determining whether or not the manhole screw 4 is attached to the manhole cover 2; and a maintenance inspection switch 32 for switching an operation mode of an escalator between a normal operation mode and a maintenance inspection mode on the basis of the determination result of the screw attachment determination device 31. When an abnormality detection device 7 detects an abnormality of the escalator and the operation mode is the normal operation mode, an alarm device 33 issues an alarm.SELECTED DRAWING: Figure 4

    【課題】保守点検中には発報装置による発報を停止するとともに、保守点検終了後には発報装置の発報をより確実に可能にすることができる乗客コンベヤ発報システムを得る。【解決手段】機械室1の開口部を開閉するマンホールカバー2に着脱可能に設けられるマンホールビス4と、マンホールビス4がマンホールカバー2に取り付けられているか否かを判定するビス取付判定装置31と、ビス取付判定装置31の判定結果に基づいて、エスカレーターの運転モードを通常運転モードと保守点検モードとの間で切り換える保守点検スイッチ32とを備え、異常検出装置7がエスカレーターの異常を検出し、運転モードが通常運転モードである場合に、発報装置33が発報する。【選択図】図4


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    Title :

    PASSENGER CONVEYOR ALARM SYSTEM


    Additional title:

    乗客コンベヤ発報システム


    Contributors:

    Publication date :

    2019-02-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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