The disclosure relates in general to a locking mechanism for a door. Specifically, the disclosure relates to a thumbturn latching mechanism having a triggered rotation-arresting assembly therein, configured to inhibit rotation of the lock mechanism upon unauthorized removal of the posterior portion of the latching mechanism, while still allowing for selectably bypassing the rotation-arresting mechanism from the anterior portion of the locking mechanism.

Blocking devices to stop movement of mechanical or magnetic coded rotors, pins or discs immediately when the plug is turned.

A cylinder lock 1 for use with a lock assembly 10. More specifically the cylinder lock is of the kind including a cam 5 rotatable from one side by a hand turn means 4, and an opposed side by a key controlled barrel 3. The configuration of the first side of the cam 5 so as to inhibit the interaction with the barrel 3 provides a useful result.

An electronic lock cylinder that may be a direct replacement for a European-style standard cylinder is disclosed. The lock cylinder may include a core, a first shaft rotatably mounted in the core, and a second shaft rotatably mounted in the core and coaxial with the first shaft. A first cam and a second cam may be each rotatably mounted in the core and coaxial with the first shaft. The first cam may include a first lug and the second cam may include a second lug, where the first lug and the second lug may each be coupled to a deadbolt. A clutch may be disposed on the first shaft and shiftable from a first position to a second position, and a motor may be disposed in the core and operatively coupled to the clutch and configured to shift the clutch from the first position to the second position. When the clutch is in the first position, the first shaft is operatively coupled to the first cam, and the second shaft is decoupled from both the first cam and the second cam, when the clutch is in the second position, both the first shaft and the second shaft are operatively coupled to the second cam.

This cylinder lock is a cylinder lock which can lock and unlock a mortise lock via a displacement transmission member. The cylinder lock comprises: a cylinder lock body; a key insertion part which is provided on one end side of the cylinder lock body and into which a key is inserted; and a displacement transmission member mounting part which is provided on the other end side of the cylinder lock body and on which the displacement transmission member can be mounted. A plurality of displacement transmission members corresponding to each of case locks having a plurality of specifications can be removably mounted on the displacement transmission member mounting part. Thus, cylinder locks having the same specification can be applied to case locks having a variety of specifications.

An electronic lock cylinder that may be a direct replacement for a European-style standard cylinder is disclosed. The lock cylinder may include a core having a proximal side and a distal side and a proximal cam, the proximal cam configured to operatively couple to a deadbolt. The lock cylinder may further include an access housing operatively coupled to the core on the proximal side and including an access knob and an input for wirelessly receiving an electronic credential and a control housing operatively coupled to the core on the distal side and including a control knob and at least one battery receptacle. An actuator may, wherein, upon receipt of a predetermined credential by the input, the actuator configured to operatively couple the access knob to the proximal cam. Finally, an antenna may configured to operatively couple the assembly to the internet.