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.

An electronic door lock includes a dead bolt moved by a deadbolt transmitting assembly, a spring-loaded latch bolt moved by a latchbolt transmitting assembly, a lock core rotated by a core transmitting assembly, and a spring-loaded prying resisting member. A monitoring unit includes sensors respectively corresponsive to those assemblies and the prying resisting member, and a security controller which performs a security procedure in accordance with position of those assemblies and the prying resisting member sensed by the sensors.

A lock has a hook and a locking finger to form a locking loop. The hook is fixedly attached to the lock body, whereas the locking finger can be pivoted to disengage from the hook to open the lock. The pivotal movement of the locking finger is controlled by a latch and an extended edge. The latch has a tip and the locking finger has a cut-out to receive the tip when the lock is locked. When the lock is locked, a spindle prevents the extended edge from moving toward the latch for releasing the tip from the cut-out. When the lock is opened by the combination mechanism, the spindle is moved away to allow the extended edge to move toward the latch to release the tip from the cut-out. When the lock is opened by the key mechanism, turning the cylinder causes the extended edge to move the latch downward.

Disclosed herein is a mechanism (30) for a lockset (10). The mechanism (30) comprises a latchbolt retractor (22) that is rotationally actuatable. The mechanism (30) comprises a rotationally mounted handle coupler (36). The rotationally mounted handle coupler (36) is rotatable by a rotation of a handle (12) when coupled thereto and comprises an adaptor receiver (46) for receiving any one of a plurality of adaptors (48,52,54). The rotationally mounted handle coupler is configured to engage with at least one of the plurality of adaptors (48,52), but not all of the plurality of adaptors (54), for transmission of the rotation of the handle (12) to a latchbolt retractor actuator (22).

A clutch assembly for a lock includes a driver (1), having a driver shaft (9); a coupler (3); and a follower (2). The driver (1), the coupler (3) and the driver shaft (9) are configured to rotate concentrically together. The coupler (3) is configured to move along the central axis of the driver shaft (9) to couple to or decouple from the follower (2). The driver (1) and the follower (2) are configured to rotate concentrically together when the coupler (3) is engaged to the follower (2), and wherein the driver (1) and the follower (2) are configured to rotate independently when the coupler (3) is disengaged from the follower (2).

A double clutch assembly includes a first clutch assembly and a second clutch assembly. The first clutch assembly includes a cylinder (21), a driver assembly, comprising a control member (11), a driver (1), and a driver shaft (9), wherein the control member (11), the driver (1), the driver shaft (9) and are configured to rotate concentrically together and a follower (2). The cylinder (21) is connected to the driver shaft (9). The rotation of the cylinder (21) causes the driver shaft (9) to engage with or disengage from the follower (2). The second clutch assembly includes an actuating assembly and a coupler (3). The coupler (3) relates to and is configured to rotate concentrically with the driver assembly. The actuating assembly is operably connected to the coupler (3) and is configured to move the coupler (3) causing the coupler (3) to disengage from or engage with the follower (2).

An electronic door lock includes a dead bolt moved by a deadbolt transmitting assembly, a spring-loaded latch bolt moved by a latchbolt transmitting assembly, a lock core rotated by a core transmitting assembly, and a spring-loaded prying resisting member. A monitoring unit includes sensors respectively corresponsive to those assemblies and the prying resisting member, and a security controller which performs a security procedure in accordance with position of those assemblies and the prying resisting member sensed by the sensors.

An exemplary trim assembly comprises an escutcheon, a drive spindle, a lock mechanism, a cam mechanism, and a driver. The drive spindle is mounted to the escutcheon for rotation about a longitudinal axis. The lock mechanism includes a lock gear movably mounted in the escutcheon. The cam mechanism includes a first cam defined by the escutcheon and a second cam defined by the lock gear. The driver is operable to rotate the lock gear between a first rotational position and a second rotational position. The cam mechanism is configured to longitudinally drive the lock gear from a first longitudinal position to a second longitudinal position as the lock gear rotates from the first rotational position to the second rotational position. Movement of the lock gear between the first longitudinal position and the second longitudinal position transitions the lock mechanism between a locked state and an unlocked state.

A clutch engagement assembly for a door lock device includes a first shaft having at an end thereof an insertion end portion in which a channel is formed; a second drive shaft having a hollow engagement end portion into which the insertion end portion of the first shaft is inserted; a driving member which provides a driving force; and a pin member that is installed in a state of being elastically supported in the engagement end portion of the second shaft and is movable by the driving member so as to extending through (be inserted in) at least a part of the first shaft and at least a part of the second shaft, thereby causing a clutch engagement or a disengagement between a first shaft and a second shaft. The clutch engagement assembly may provide a relatively small size structure of the door lock device and a firm engagement force.

A lock includes a lock housing, a cylinder assembly rotatably arranged in the lock housing and a locking keyless assembly connected to the cylinder assembly in a transmission way. The cylinder assembly includes a cylinder core and a tailpiece unit, a first clutch mechanism is provided between the cylinder core and the tailpiece unit, and a second clutch mechanism is provided between the locking keyless assembly and the tailpiece unit. When the second clutch mechanism is engaged, the locking keyless assembly is movable relative to the lock housing in a first direction under a driving of an external force for locking, and the cylinder core and the tailpiece unit rotate along with the locking keyless assembly. When the external force on the locking keyless assembly is withdrawn, the locking keyless assembly moves in an opposite second direction opposite, so that the second clutch mechanism switches to a disengaged state.