| 摘要 |
A passenger conveyor includes: a plurality of steps that have step rollers; guide rails that guide the step rollers; and an abnormality detecting apparatus that detects separation of the step rollers from the guide rails. The steps are moved through an endless cyclic pathway. The cyclic pathway has: a forward pathway; and a return pathway that is positioned below the forward pathway. The return pathway has a return path switchover portion in which adjacent steps are displaced vertically relative to each other while being moved. The abnormality detecting apparatus detects the separation of the step roller from the guide rail as the steps are being moved through the return path switchover portion. |
