| 摘要 |
PURPOSE: A system for opening and closing automatic doors is provided to open and close two automatic doors at the same time by one driving belt rotated by the driving of one forward/reverse rotating motor. CONSTITUTION: A system for opening and closing automatic doors is composed of a power generating device(120), a tension regulating device(150), a door hanger(160), a locking device(180), a control unit(190), and a panel fixing device. The power generating device includes a driving motor(121) installed to the side of a mounting panel(110) in a doorframe(100) to rotate forward and reverse and a reducer(122) connected to the driving motor and mounted with a driving pulley(123) rotating a driving belt(140). The tension regulating device for regulating the tension of the driving belt comprises a bracket installed to the other side of the mounting panel to move left and right and mounted with a driven pulley supporting the driving belt, and a movable piece movably installed in the bracket by the rotation of a rotary shaft to move the position of the bracket. The lower part of the door hanger is fixed to the upper part of the automatic door, the upper part is fixed to the driving belt, and a guide roller for sliding along a guide rail formed at the lower part of the mounting panel is rotatively mounted at the rear side. The locking device installed to the mounting panel has a locking member for moving back and forth by a solenoid and locks and releases the door hanger in opening and closing the automatic doors. The control unit disposed to the mounting panel controls operations of the locking device and the driving of the driving motor to a signal detected from a sensor for sensing visitors. The panel fixing device includes a lower holder mounted between the floor surface of the doorframe and the mounting panel to fix and support the lower end of the mounting panel and an upper holder installed to the mounting panel to keep the horizontal state of the mounting panel and adjust a gap with the doorframe. |
