ROTATING PIN TUMBLER SIDE BAR LOCK WITH SIDE BAR CONTROL

摘要

A TWISTING TUMBLER LOCK WITH A SIDE BAR IS PROVIDED WITH ADDITIONAL LEVELS OF SECURITY BY A AXIALLY RECIPROCABLE SLIDER WHICH IS NORMALLY POSITIONED TO BLOCK OPERATION OF THE SIDE BAR BUT IS MOVED BY A SPECIALLY CONFIGURED KEY TO FREE OPERATION OF THE SIDE BAR. THIS PROVIDES A THIRD LEVEL OF LOCKING SECURITY, IT ALSO ALLOWS MASTER KEYING. THE UNIQUE KEY HAS A PORTION OF A RIB FORMED TO COOPERATE WITH THE SLIDER TO FURTHER ALLOW KEY CONTROL.(FIG 1)