| 摘要 |
PURPOSE:To stop a run of an unmanned carriage by the operation of an electric contact by a collision against a frame even if an infrared detector gets out of order, and to secure double safety, by providing surface elastic bodies which have infrared detectors and electric contacts. CONSTITUTION:The infrared detector 7 operates by the unexpected approach of an infinite large number of persons whose bodily temperatures are around 36 deg.C to stop the run, and consequently a safety countermeasure to prevention against a collision with an infinite large number of persons is secured basically. Further, the surface elastic bodies 11A and 11B having embedded electric contacts C are provided before and behind the frame 1, so the run is stopped quickly in response to an intentional collision by an automobile accident faker, etc. Consequently, by providing the infrared detector 7 and the surface elastic bodies 11A, 11B having the embedded electric contacts C, when the collision against the frame 1 occurs, the electric contact C operated even when the device 7 is faulty to stop the run, and the 1st safety countermeasure by the devices 7 and the 2nd safety countermeasure for an abrupt stop by the surface elastic bodies 11A and 11B having the embedded electric contacts C are taken to secure double safety. |
