Development of a Detector of Foreign Objects Caught in the Doors with Improved Function for Preventing Passenger Dragging Accidents

This paper describes how rolling stock, such as that for commuter trains, has safety devices that detect if bodies or baggage are caught in the doors and prevent the train from starting to move in such a case. Since conventional safety devices detect objects using a mechanical switch (door close switch), it is difficult to detect thin objects such as the leg of a stroller or passenger's clothes. Therefore, there is a risk of accidents when passengers are caught in the doors and dragged by the train. This paper develops a safety device that is based on completely different principles from former ones. The new device can detect objects based on deformation and change of inner pressure of a detection tube at the edge of the doors. The authors have conducted checks of the detection performance and reliability of the prototype and are now seeing a prospect of placing the device into practice.

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  • Authors:
    • Muraki, Katsuyuki
    • Wada, Tomoki
    • Matsumoto, Shigeo
  • Publication Date: 2010


  • English

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  • Accession Number: 01152237
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 12 2010 2:36PM