Security window, has cover with ventilation holes on outside of movable wing frame

摘要

The window frame (20) includes at least one first grille-free frame (21, 22) for holding breakproof glass (23, 24) and at least one second frame (25-27) housing a movable wing frame (28-30). A cover (31-33) with ventilation holes is provided on the outside of the second frame and essentially covers the entire wing frame.