Closing key-bit ring for a closing cylinder for operating a stopping bolt in a box/cased lock has a ring to link to a means of locking in a torque-proof manner and a closing key-bit to carry the stopping bolt

摘要

In a cross-sectional surface plane, a closing key-bit (150) takes the shape of a wedge so that corresponding two wedge surfaces (151,152) on the closing key-bit have a common edge (153) pointing outwards. One of the two wedge surfaces is flat and the other is curved like a barrel. Independent claims are also included for the following: (1) A closing cylinder for a box/cased lock; (2) A box/cased lock.