Security lock with delayed key liberation - has time switch clock at back of lock with key trapped by wheel engaging pinion mounted on clock

摘要

The security lock has a key that combines with a time switch and has a mechanism imprisoning the key allowing its delayed liberation. The lock (10) has its axis (2) extending towards the rear, with a plate (12) fixed behind the lock by bracing (13), while a time switch clock (4) is fixed to the back of the plate (12) and has an axis (14) which traverses the plate. The key is trapped by a wheel (15) which is partially toothed (6) and fixed to the axis of the lock. The wheel engages the pinion (5) mounted on the rear end of the axis of the time switch clock.