In one aspect of the present disclosure, a locking device is provided including an interchangeable core (IC), a barrel, an anti-rotation plate, a prong driver, a bolt and a backplate. The barrel is coupled to the backplate and includes a hollow interior to receive the IC. The bolt is slidably disposed in a slot of the backplate. The IC includes a key hole. The prong driver is coupled to the IC and the bolt, such that, when a proper key is inserted into the key hole and rotated the bolt can be extended from the slot in a direction away from the locking device or retracted into the slot in a direction toward the interior of the locking device. The anti-rotation plate of the locking device is coupled to the barrel to prevent the locking device from being rotated relative to a structure the locking device is mounted to.

A rekeyable lock cylinder with a cylinder body and a plug assembly. The lock cylinder includes a plurality of key followers and a corresponding plurality of racks disposed in the plug assembly. Disengaging the racks from the key followers allows rekeying of the lock cylinder.

A method for securing a portable electronic device having a housing to a substantially immovable object utilizing a locking assembly having a security rod or spike formed with an anchoring end separated axially by a protruding end, a locking device with an internal locking mechanism and a cable permanently attached to the locking device at one end, includes several steps. The steps include securedly fixing the anchoring end of the security rod or spike to the portable electronic device upon or through the housing, attaching an other end of the cable to the substantially immovable object and inserting the protruding end of the security rod into an opening in the locking device to actuate the internal locking mechanism and lock the locking device to the captive security rod. Locking the security rod to the locking device concurrently locks the portable electronic device to which it is anchored to the substantially immovable object.

A method for securing a portable electronic device having a housing to a substantially immovable object utilizing a locking assembly having a security rod or spike formed with an anchoring end separated axially by a protruding end, a locking device with an internal locking mechanism and a cable permanently attached to the locking device at one end, includes several steps. The steps include securedly fixing the anchoring end of the security rod or spike to the portable electronic device upon or through the housing, attaching an other end of the cable to the substantially immovable object and inserting the protruding end of the security rod into an opening in the locking device to actuate the internal locking mechanism and lock the locking device to the captive security rod. Locking the security rod to the locking device concurrently locks the portable electronic device to which it is anchored to the substantially immovable object.

A bolt lock comprises a lock body and a bolt which is lockable to the lock body. The lock body comprises a housing and a lock cylinder therein, a movable latch and a biasing spring. The housing comprises an introduction passage for the bolt. In a locking position, the latch engages a locking recess of the bolt and hereby locks the bolt. The biasing spring biases the latch in the direction of the locking position. The housing and the latch comprise a respective blocking section, wherein the blocking section of the housing and the blocking section of the latch are configured so as to engage with one another and hereby block the latch against movement from the locking position in the direction of an unlocking position, when a force, via the bolt introduced into the introduction passage, is exerted on the latch which is in the locking position, the force being counter to the introduction direction of the bolt. The biasing spring is oriented at an angle such that the biasing spring additionally biases the latch along the introduction direction of the bolt.

A bolt lock comprises a lock body and a bolt which is lockable to the lock body. The lock body comprises a housing and a lock cylinder therein, a movable latch and a biasing spring. The housing comprises an introduction passage for the bolt. In a locking position, the latch engages a locking recess of the bolt and hereby locks the bolt. The biasing spring biases the latch in the direction of the locking position. The housing and the latch comprise a respective blocking section, wherein the blocking section of the housing and the blocking section of the latch are configured so as to engage with one another and hereby block the latch against movement from the locking position in the direction of an unlocking position, when a force, via the bolt introduced into the introduction passage, is exerted on the latch which is in the locking position, the force being counter to the introduction direction of the bolt. The biasing spring is oriented at an angle such that the biasing spring additionally biases the latch along the introduction direction of the bolt.

A lockset including a chassis having a locked state and an unlocked state, a latchbolt connected with the chassis, a handle mounted to the chassis, and a lock cylinder connected with the chassis. The handle is operable to retract the latchbolt when the chassis is unlocked, and is inoperable to retract the latchbolt when the chassis is locked. The lock cylinder includes a shell and a plug selectively rotatable relative to the shell. The chassis is configured to transition from the locked state to the unlocked state in response to rotation of the plug in a first rotational direction from a home position to a first rotated position. The chassis is configured to return from the unlocked state to the locked state in response to rotation of the plug in a second rotational direction from the first rotated position to the home position.

In one form, a cylindrical lockset includes a chassis including a pair of hubs, a pair of drive tubes, a retractor, and a lock control assembly. The lock control assembly has a locked state and an unlocked state. The lock control assembly also has a plurality of movable elements, each having a locking position and an unlocking position. One of the hubs includes a guide channel, and a slider is movably seated in the guide channel. One of the movable elements is associated with the slider, and is configured to move the slider between a lock-indicating position and an unlock-indicating position.

A lock mechanism is disclosed. The lock mechanism includes a body and a clasp with a hole in. The clasp engages and locks with the body. There is also a key receiver with a keyway and a latch biased in a first direction by a spring. The latch has a protrusion for engaging the aperture to lock the clasp to the body. There are split pins which straddle a shear line between the latch and key receiver when in a locked condition and that do not straddle the shear line when the correct key is in the keyway. The split pins are biased by springs in a second direction, transverse to said first direction. The lock mechanism also has a retainer for maintaining the engagement of the latch and the key receiver.

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.