Protection device for a tumbler of a door lock

摘要

The device has a guard plate (22) on one side of a tailing (9) of a bolt (5). The plate has a protrusion (26) supporting against an associated stop unit (18) of a gorge using a torsion spring (31). The spring forces the guard plate to pivot around an axle (14) if the protrusion is disengaged from the stop unit, to position the protrusion on the tailing path. An INDEPENDENT CALIM is also included for a door lock.