To obtain a derailment detection device for an elevating body capable of detecting that an elevating body 3b comes off from a guide rail 4b at an early stage.SOLUTION: A derailment detection device for an elevating body includes a photoelectric sensor 9 provided on an elevating body 3b raising/lowering along a guide rail 4b and having a first light emitting part 11b emitting a first light and a first light receiving part 12b receiving the first light, a wire 8 provided in parallel with the elevating direction of the elevating body 3b and arranged at a position where the first light receiving part 12b is blocked from receiving the first light between the first light emitting part 11b and the first light receiving part 12b, and a detection part for detecting that the elevating body 3b comes off from the guide rail 4b. The first light receiving part 12b receives the first light by moving the photoelectric sensor 9 such that the wire 8 comes off from the position. The detection part detects that the elevating body 3b comes off from the guide rail 4b when the first light receiving part 12b receives the first light.SELECTED DRAWING: Figure 3

    【課題】昇降体3bがガイドレール4bから外れたことを早期に検出することができる昇降体の脱レール検出装置を得る。【解決手段】昇降体の脱レール検出装置は、ガイドレール4bに沿って昇降する昇降体3bに設けられ、第1の光を照射する第1の発光部11b及び第1の光を受光する第1の受光部12bを有する光電センサ9と、昇降体3bの昇降方向と平行に設けられ、第1の発光部11bと第1の受光部12bとの間であって、第1の受光部12bが第1の光を受光することを遮る位置に配置されるワイヤ8と、昇降体3bがガイドレール4bから外れたことを検出する検出部とを備える。ワイヤ8が当該位置から外れるように光電センサ9が移動することにより、第1の受光部12bが第1の光を受光する。検出部は、第1の受光部12bが第1の光を受光したとき、昇降体3bがガイドレール4bから外れたことを検出する。【選択図】図3


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    Title :

    DERAILMENT DETECTION DEVICE FOR ELEVATING BODY


    Additional title:

    昇降体の脱レール検出装置


    Contributors:

    Publication date :

    2024-01-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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