Apparatus preventing loosening of window- or door-frames

摘要

The anti-loosening device comprises external (8) and internal (9) sides defined by a frame (4) inside which a pane (6) or window (7) is set against a shoulder (10). There is a pre-frame (13) in the shape of a strip (15) adhered to the pane peripheral edge. The strip is extended from the internal side by a tongue (16) which ensures the fixing of the device on the frame.