Multi-bolt security lock for door or window - has supplementary bolts housed in groove in fixed frame operated via levers from main bolt

摘要

The U-shaped metal profile (7) is housed in a groove in a door or window frame and contains supplementary security bolts (1) at the end of spring loaded pivoting levers (2). The action of the normal lock bolt (5), either by hand or by key, against the stops (4) works the levers (2) and bolts (1) by pivoting the levers about the fixed axis (3) against the coil springs.