| 摘要 |
PURPOSE: An automatic-opening/closing window structure for ventilation of a building is provided to automatically open a ventilation window during a fixed time at a setup time and close a ventilation window as the fixed time passes. CONSTITUTION: An automatic-opening/closing window structure for ventilation of a building comprises a ventilation window, a rotating window(35), a bottom plate(40), a lifting plate(50), and a driving projection(70). The ventilation window is installed together with a general window to be opened and closed in a window frame. The rotating window is installed in the rotating window to be rotatable. The bottom plate is installed inside a case. The lifting plate moves up and down on the bottom plate by the operation of a lifting motor. The driving projection is installed on the lifting plate. |
