| 摘要 |
The present invention relates to an automatic closing device for a self-assembly window, which is conveniently and effectively installed in case of being used, and can be stably managed while being used. According to the present invention, the automatic closing device for a window comprises: a gear box wherein a motor having a rotation shaft is coupled to one side, a plurality of gears are provided in an internal side, and a rotation output shaft is provided in one side of the gears; a chain box detachably coupled to a lower end of the gear box; and a fixed frame coupled to surround an external side of the gear box and the chain box. |
