| 摘要 |
PURPOSE: An automatic opening and shutting device of a hinged door is provided to stably operate the opening and closing of first and second hinged doors using sensors by converting the direction of tension according to the rotational direction of a motor. CONSTITUTION: An automatic opening and shutting device of a hinged door comprises a pair of guide rails(30), a first hinged door(10), a second hinged door, a driving pulley and a secondary pulley. The guide rails are installed in a gateway in a row in the opening direction of the gateway. The first hinged door comprises a plurality of first moving bars(11), a first pantagraphy and a first guide roller(13). The second hinged door comprises a plurality of second moving bars, a second pantagraphy and a second guide roller. |
