PROBLEM TO BE SOLVED: To provide a fault diagnostic device for an elevator which can detect malfunction and fault related to a safety shoe without providing a new mechanism therein.SOLUTION: The fault diagnostic device for an elevator comprises: an excessive load-detected position determiner 17 that determines an excessive load-detected position using an excessive load detector 15 that when predetermined load torque or more is applied to a door 2, detects the excessive load and inverts the door 2 and a position detector 16 that detects opening/closing positions of the door 2; and a fault detector 18 that when excessive loads are detected continuously in predetermined frequencies or more, for example three times or more, in the vicinity of an open end of the door 2 by the excessive load-detected position determiner 17 in a state where operation of a safety shoe 5 arranged in the door 2 so as to be freely movable back and forth in an opening/closing direction, detects the detected results as malfunction and fault related to the safety shoe 5.SELECTED DRAWING: Figure 2
【課題】新たな機構を設けることなくセーフティシュに関係する不動作故障を検出することができるエレベータの故障診断装置の提供。【解決手段】本発明に係るエレベータの故障診断装置は、ドア2に所定以上の負荷トルクが掛かった場合に過負荷を検出してドア2を反転させる過負荷検出器15と、ドア2の開閉位置を検出する位置検出器16とによって、過負荷検出位置を判定する過負荷検出位置判定器17と、ドア2に開閉方向に進退自在となるように設置されたセーフティシュ5の動作を検出しない状態で、過負荷検出位置判定器17によって、ドア2の開端近傍での過負荷検出を所定回数以上、例えば3回以上連続して検出したときに、セーフティシュ5に関係する不動作故障として検出する故障検出器18とを備えている。【選択図】図2
FAULT DIAGNOSTIC DEVICE FOR ELEVATOR
エレベータの故障診断装置
2016-10-13
Patent
Electronic Resource
Japanese
IPC: | B66B Aufzüge , ELEVATORS |
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