| 摘要 |
PURPOSE:To prevent such an accident that a person or articles are caught in the door and also simplify load transfer by operating an external switch to stop driving of a motor during opening (or closing) movement of the door, and freely varying the driving direction of the door in response to a re-operation signal. CONSTITUTION:A lead switch 10a - 10d provided near a belt 6 and a touch switch 12 provided to a door frame 1 are connected to respective portions of a control circuit 11. When a door 7 is fully closed (or opened) the door 7 starts an opening (or closing) movement by pushing of the switch 12, and the door 7 is stopped by re-pushing of the switch 12 before the door is fully opened (or closed), and re-starts an opening (or closing) movement by re-pushing of the switch 12. After the door is stopped for a predetermined time in a position where it is fully opened, the door starts to move in the closing direction and stops when fully closed. When the switch 12 is re-pushed after it is temporarily stopped, a motor 3 is always driven in the fully closing or fully opening direction. |
