| 摘要 |
PURPOSE: A ventilation device for a window frame is provided to improve the performance of ventilating and dehumidifying by installing a ventilation unit between the window frame and a glass unit. CONSTITUTION: A ventilation device for a window frame comprises a sealed part(30), a ventilation part(60), and a guide unit(40). The sealed part is installed between the wind frame(10) and a glass unit(20). The ventilation part comprises one or more through holes, and ventilates the air. An opening and closing unit is installed in the ventilation part, opens and closes the ventilation part. The guide unit is installed in the ventilation part, and guides the opening and closing unit. The guide unit is fitted into a guide projection formed on the outer surface of the opening and closing unit. The guide unit comprises a guide groove inside. |
