To determine a sign of an abnormal state of a wheel during operation and to cope with the abnormal state before an emergency stop is required.SOLUTION: In an abnormality detection system for a passenger conveyor, according to one embodiment, two optical axes 54, 55 are formed on a traveling path of a wheel 27 by using a light emitting part 51 and light receiving part 52 of a transmission type photoelectric sensor 50 as well as a reflection mirror 53, and displacement of the wheel 27 in a rail width direction is detected on the basis of a time required for the wheel to pass between the two optical axes 54, 55, a traveling speed of a step 11, and the positional relations between the two optical axes 54, 55.SELECTED DRAWING: Figure 4
【課題】運転中に車輪の異常の兆候を判断して、緊急停止が必要な状態になる前に対処可能とする。【解決手段】一実施形態に係る乗客コンベアの異常検出システムは、透過型光電センサ50の投光部51および受光部52と反射ミラー53を用いて車輪27の走行経路上に2つの光軸54,55を形成し、この2つの光軸54,55の間を車輪が通過した時間、踏段11の走行速度、2つの光軸54,55の位置関係に基づいて、車輪27のレール幅方向の変位を検出する。【選択図】 図4
ABNORMALITY DETECTION SYSTEM FOR PASSENGER CONVEYOR
乗客コンベアの異常検出システム
2019-03-22
Patent
Electronic Resource
Japanese
IPC: | B66B Aufzüge , ELEVATORS |
European Patent Office | 2018
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