| 摘要 |
The present invention relates to a natural ventilation apparatus for a window and, more particularly, to a natural ventilation apparatus for a window, capable of enabling ambient air to be introduced to naturally discharge indoor contaminated air, preventing introduction of rainwater through a ventilating opening, and enhancing soundproof characteristics, insulation performance, and airtightness between the interior and the exterior of the ventilation apparatus without affecting an indoor temperature. To this end, the natural ventilation apparatus for a window, installed in an upper sash of a window to naturally ventilate an indoor area, comprises a ventilation unit including an external frame having the ventilating opening, an internal frame having a ventilating hole, a slat rotatably coupled between the external frame and the internal frame to open and close a space between the ventilating opening and the ventilating hole, and an insulation coupling member provided between an upper end and a lower end of the internal frame and the external frame to fasten the frames; a driving unit coupled to both sides of the ventilation unit and including a rotary member having a restricting protrusion coupled to both ends of the slat and allowing the slat to be rotatably opened and closed; and an operating unit including a stick bar formed to extend to the bottom as an upper end portion thereof is connected to the rotary member and a lever member coupled to a lower end portion of the stick bar and lifting and lowering the stick bar to rotate the rotary member. |
