| 摘要 |
PURPOSE: A device for automatically opening and closing a window is provided to be easily maintained, attached, and detached by installing a tension control unit and cover for a driving belt. CONSTITUTION: A device for automatically opening and closing a window comprises a timing belt(110), a belt pulley(120), a geared motor(130), a wind connection member(140), a wireless controller(150), and a tension control member(160). The timing belt is formed into a closed loop shape. The belt pulley is placed on one end of the timing belt, and rotates the timing belt. The geared motor is placed on the other end of the timing belt, and rotates the timing belt. The wind connection member is fixed to one end of the timing belt, and the other end is fixed to the window. The wireless controller reversely or normally rotates the geared motor according to a wireless signal for opening and closing. The tension control member is connected to the belt pulley, and controls the tension of the timing belt. |
