Grating that can be opened to receive a mosquito net for external door and window opening

摘要

The grating consists of a fixed casing (1,2,3) and one or more wings each formed by a narrow lateral element (7) hinged on a vertical axis (9) to the outer upright (3) and by a larger central element (8) hinged on a vertical axis (10) to the lateral element (7). This grating is designed to receive a mosquito net (19) wound around a drum (16) and provided with fixtures (21, 22) for automatic rewinding . The grating is placed between the internal frame lining of the normal or French window (5) and the external frame which may be of a blind or door (6).