Security lock for rolling screen - has three hinged sections fixed between roller and top slat which straighten when screen is closed and prevent lifting

摘要

The security lock for a rolling screen is fixed between the screen top roller (19) and the top slat (16) of the screen. The lock has three hinged sections (24-26) which have a scalloped underside to fit the curvature of the roller. Simple clips (29, 30) secure the hinging assembly to roller and to slat and when the screen is fully unrolled the assembly is straight. Any attempt to lift the screen will be resisted by the locking assembly and the screen can only be unrolled by rotating the roller.