Abstract: A linearly-actuated lock including a housing, a lock case received within the housing along an axis, and a lock barrel rotatable relative to the lock case between a locked state and an unlocked state. The lock barrel includes tumblers and tumbler springs. The lock further includes a key insertable into the lock barrel to displace the tumblers relative to the lock barrel in a direction parallel to the axis and a sidebar extending through apertures of the lock barrel. The sidebar is engageable with a notch of the tumblers when the sidebar moves radially inward relative to the axis. The sidebar includes a cam surface slidable against at least one of the housing and the lock case when the lock barrel rotates. The sidebar also includes a projection having a single-ramped surface received within the notch of each tumbler when the lock barrel is in the unlocked state.

Abstract: The invention relates to a closing device which comprises a stationary part (2) and a pant (3) which is displacably mounted thereon. Tumblers (Z1-Z5) are arranged by means of a key (19) in order to release the displaceable part (3). Said tumblers (Z1-Z5) are maintained in a locking position by means of the locking element (14, 27, 33). The locking element (14, 27, 33) can be adjusted by means of a drive (13, 23, 30) in order to release the tumblers (Z1-Z5), which can be controlled via an electronic control device (16).

Abstract: Anti-theft lockset is disclosed. Lock column and frame body are arranged in lock core. Outer side of lock column is matched with a long slot on the inner wall of lock shell. Inner side of lock column is provided with a crown pillar, and lock core is provided with a sliding chute for causing lock column to slide and a first through hole for causing frame body to move. Crown pillar is contacted with a first lock ball. Lock core is internally provided with lock ball holes matched with first and second lock balls. One end of the second lock ball is contacted with the frame body. The lock core is provided with a containing slot for causing the first lock ball and a locking plate to move up and down. The containing slot is communicated with a key hole. The locking plate is provided with a second through hole.

Abstract: New and improved electronic locks and electronic keys with enhanced anti-tamper capabilities integrated into the electronic locks, additional contact-based communications and recharging capabilities in the electronic keys, and capabilities for an electronic lock to change the authorizations and characteristics of an electronic key by provide an access profile to the electronic key when the key touches the lock.

Abstract: The invention relates to a closing device which includes a stationary part and a part which is displaceably mounted thereon. Tumblers are arranged by means of a key in order to release the displaceable part. These tumblers are maintained in a locking position by means of the locking element. The locking element can be adjusted by means of a drive in order to release the tumblers, which can be controlled via an electronic control device.

Abstract: A key for opening multiple axial pin locks has a base member with an indexing element and a number of lock pins, configured to match the keyways of the locks. The key has a microprocessor with access to information on the pin configuration for each lock to be opened, and the lock pins are selectively positioned along the base member to match the configuration of a key for a particular lock in response to the user entering an identification code for that lock. The lock pins can slidably engage recessed tracks in the base member, which serve to direct the lock pins parallel to an axis of the base member. A pin latching mechanism can be provided to secure the lock pins in the desired position.

Abstract: A lock device is provided that includes a housing (2) having an opening (4) and a core (10) which is rotatably mounted in the opening (4) about a longitudinal axis of the core and which includes a key way (12) for reception of a key. Also included is a latching dement (20) that co-acts between the housing (2) and the core (10). An electronically controllable actuator (30) is mounted in the core (10) and is movable using a motor (40) between an opening-registering position in which movement of the latching element (20) to the release position is permitted, and a latching position in which movement of the latching element (20) to the release position is blocked. The motor (40) is provided in a recess (10a) in the barrel surface (10b) of the core at a distance from the end surfaces of the core.

Abstract: A lock device comprises a housing (2) which includes an opening (4) and a core (10) which is rotatably disposed in the opening. A latching element (20) co-acts between the housing and the core and can be moved between a release position in which the core is rotatable relative to the housing, and a latching position in which rotation of the core relative to the housing is blocked. An electronically controllable actuator (30) is disposed in the core and is moveable between an opening-registering-position in which the latching element is movable to the release position, and a latching position in which movement of the latching element to said release position is blocked. A returning means (50) co-acts mechanically with a key in a key way in the core and with the actuator and such as to move the actuator away from the position of the opening to a further latching position in response to the key being drawn out of the keyway.

Abstract: A lock and key combination wherein at least one locking tumbler includes a key sensing portion, a body portion and a locking portion. A cavity, accommodating an associated locking tumbler, is larger than the contour of the body portion so as to permit a translatory as well as a rotary movement of the locking tumbler in a movement plane within the cavity. A code pattern on the key blade includes at least one wave-like guiding surface. When the key blade is inserted into the key slot, the locking tumbler is controlled by two mutually spaced formations, which engage with the wave-like guiding surface of the key blade, and is guided at opposite side surfaces by two associates walls of the cavity, to be retained precisely in the movement plane. The locking portion of the locking tumbler is movable to enable the locking mechanism to be released.

Abstract: A recodeable lock includes a housing, a cylinder plug, a plurality of wafer tumblers, and a sidebar coupled with the cylinder plug. The sidebar is assembled with a plurality of code blocks and a codebar releasably securing the code blocks to the sidebar. A liftbar is disposed in the housing radially outward of the cylinder plug and is configured to selectively engage a radially outward extending appendage of the codebar when the cylinder plug and sidebar are rotated to a recoding orientation, to release the code blocks from the sidebar. The housing includes a circumferential track axially positioned to receive the appendage of the codebar to permit greater than 180 degree rotation of the cylinder plug and sidebar with respect to the housing.

Abstract: A cylinder lock comprising a cylinder housing (2), a cylinder core (4) having a key channel (5) arranged in the cylinder housing (2), at least one side bar (6, 7) arranged between the cylinder housing (2) and the cylinder core (4) and a plurality of side pins (20) arranged on at least one side of the key channel (5) and arranged to be lifted by insertion of a key (8) and in cooperation with the side bar (6, 7) allow or prevent relative rotation of the cylinder housing (2) and the cylinder core (4), wherein each side pin (20) comprises a foot (26, 29) adapted to be lifted by means of a code groove (10) in the side surface (12) of the key. The cylinder lock is characterized in that the foot (26) of at least one of the side pins (20) is tapered. A key (8) for the cylinder lock having a groove for side pins having tapered foot is also described.

Abstract: A substantially burglary-proof lock, comprises a housing formed with a cylindrical bore defining an inner cylindrical surface, and a cylinder within said bore carrying locking elements movable to locking and unlocking positions with respect to said housing, said cylinder having an outer diameter equal to the diameter of said bore so as to be rotatable when the locking elements are in unlocking position with respect to said housing, said cylinder being formed with a keyway for receiving a proper key in order to move said locking elements to their locking and unlocking positions with respect to said housing, characterized in that said cylinder carries at least one insert of a hard material configured, dimensioned and located such as to prevent pull-out of the cylinder from the housing by a pull-out force applied to the cylinder, and/or by drilling through the locking elements.

Abstract: An article including a key comprising a key head that slides along a key shaft, said key head being affixable to said key shaft with a fastener.

Abstract: A tumbler pin lock includes an auxiliary locking mechanism including an auxiliary locking pin to provide enhance locking in addition to the locking provided by the tumbler pins so that the lock remains locked even if the tumblers are picked or bumped into their unlocked positions.

Abstract: A lock device comprises a housing (2) which includes an opening (4) and a core (10) which is rotatably disposed in the opening and which includes a key way (12) for reception of a key. A latching element (20) co-acts between the housing (2) and the core (10) and is movable between a release position in which the core is rotatable relative to the housing, and a latching position in which rotation of the core relative to the housing is blocked. An electronically controllable actuator (30) is disposed in the core and is rotatable between an opening-registering-position in which the latching element is movable to the release position, and a latching position in which movement of the latching element to said release position is blocked. A spring (46) abuts an abutment portion (30c) of the actuator. Since the spring is provided with two mutually parallel leg portions (46d, 46e), which abut radially opposite surfaces of the abutment portion of the actuator, several advantages are obtained.

Abstract: A hierarchical lock system includes a first cylinder lock having a cylindrical plug, rotatable, reciprocating tumbler pins, a slider disposed within the plug and a side bar that cooperates with the cylinder plug, the slider, and the tumbler pins to control rotation of the lock. A second cylindrical lock includes a cylindrical plug, reciprocating tumbler pins, a slider, and a side bar that cooperates with the cylindrical plug and the slider. A first key is configured to open both the first and second locks by elevating and rotating the tumbler pins, and moving the slider to an unlocked position with respect to the side bar. A second key is able to open only the second cylindrical locks by elevating but not rotating the tumbler pins and by moving the slider to an unlocked position with respect to the side bar.

Abstract: A lock device has: a cylindrical case member in which is formed a space extending in an axial direction; a cylindrical sleeve member is disposed at an interior of the case member, and is supported and configured to move along the axial direction between a predetermined standby position and an operating position; a plunger member which is disposed at an interior of the sleeve member and configured to move along the axial direction, and which is supported and configured to move between the standby position and the operating position, and in which a key insertion hole, which is for insertion of a key from an outer side at the standby position, is formed along the axial direction; a plurality of tumbler members disposed at the plunger member and configured to move along a direction orthogonal to the axial direction between proper positions, a side lock member disposed at the plunger member and configured to approach and move away from the tumbler members, and an interlocking mechanism which, at a time when the co

Abstract: According to one exemplary embodiment, a portion of a lock may include a stationary member having a bore, where the stationary member can be mountable to an object. The portion of the lock can also include a movable member positioned at least partially within the bore and movable relative to the bore in an unlocking direction during a normal unlocking operation. A deformable portion can be positioned adjacent an interface between the stationary member and the movable member. The deformable portion permits the movable member to move in the unlocking direction during a normal unlocking operation and is deformable to prevent movement of the movable member relative to the stationary member when subjected to excessive force applied in an attempt to move the movable member in the unlocking direction in other than a normal unlocking operation.

Abstract: A rekeyable lock cylinder includes a plug body and a backing rack that cooperate to define a plurality of pin chambers within the lock cylinder, with each of the pin chambers housing a corresponding pin. Movement of the backing rack changes the configuration of the pin chambers, thereby allowing the corresponding pins to change configuration to match the bitting on a valid key.

Abstract: A lock has a housing, a movable cylinder, a stationary cylinder, a limiting slide assembly and a latch bar. The housing has a cavity. The movable cylinder is mounted rotatably in the cavity and has a curved recess. The stationary cylinder is mounted securely in the cavity and adjacent to the movable cylinder and has a rail slot. The limiting slide assembly is mounted in the rail slot and has a limiting slide, a ball and a spring. The limiting slide is mounted slidably in the rail slot and has a ball recess for receiving the ball. The latch bar extends through the movable and stationary cylinders and has an annular groove for receiving the ball. The limiting slide assembly is compact and has a simple structure to improve the production rate and the lower the cost of the lock.

Abstract: In a key cylinder a stopper plate is pressed into an imposing hole of a rotor, latching to a body and also intruding into engagement grooves of a second sleeve. When an authentic key is inserted into the rotor and rotated, a first sleeve is not rotated, and a second sleeve is rotated through the stopper plate. When a false key is inserted into the rotor the first sleeve rotates and the second sleeve is slid to the rear by slide bars, therefore the stopper plate separates from the engagement grooves, and the second sleeve is not rotated. The stopper plate has the function of being able to stop the movement of the rotor in the forward-rearward direction, and also the function of making the second sleeve rotatable by the rotation of the rotor, and so the construction of the key cylinder is simplified.

Abstract: In some embodiments, lock assemblies are disclosed which have a housing, a barrel, and at least one tumbler. In some cases, the lock is codeable after the lock assembly has been assembled. Although not required, some embodiments can be re-coded to a new code with and without disassembling the lock assembly. The tumbler(s) can be pivotable, while in other embodiments the tumbler(s) move in a substantially linear fashion. The tumbler(s) can be comprised of two pieces or portions, wherein one piece/portion of the tumbler(s) either directly or indirectly engages the coded surface of a key while the other piece/portion is positionable to prevent rotation of the barrel with respect to the housing. In some embodiments, the tumblers are external to the barrel.

Abstract: A key blank, key and master keying system for a twisting tumbler sidebar lock of the type where the sidebar is blocked or unblocked by a selectively positioned longitudinally extending slider, has a key blank with a slider contacting surface on a rib on the blank below the bitting area at one of a plurality of selected predetermined locations. A key with skew cut bittings can be cut on the blank and the blank can be configured with the slider contacting surface at different predetermined locations. The slider contact area on the rib of the key blank can be divided into two horizontal portions at different predetermined locations and the slider itself can have contact surfaces also positioned at different predetermined locations so that a number of different master keying variations are possible.

Abstract: Locks and keys are disclosed with electromagnetic as well as mechanical actuation. Several forms of reverse sidebar are described, avoiding binding of the lock release mechanism by premature turning of the key by a user. An embodiment of a system is described wherein the lock units are in radio communication with a control console, for setting access parameters and monitoring accessing events at each of the various locks.

Abstract: A free-wheeling lock assembly includes a case and a drive mechanism which is adapted for coupling to a latching mechanism. The drive mechanism includes a lock barrel supported within the case for rotational and axial movement relative to the case and a driver releasably coupled to the lock barrel but fixed against axial movement. The drive mechanism further includes first and second slidebars supported within the case for axial movement relative to the case. The slidebars are coupled to the lock barrel by tumblers of the lock assembly, and translate the lock barrel axially with respect to the driver, decoupling the driver from the lock barrel in response to rotation of the lock barrel when the tumblers are in a locking position. However, the tumblers permit relative axial movement between the first and second slidebars and the lock barrel when the tumblers are in a releasing position, permitting the lock barrel to rotate the driver for operating the latching mechanism.

Abstract: A lock core assembly. The assembly includes an external cylinder, an inner cylinder rotatably fitted in the external cylinder, alignment elements provided in the inner cylinder, at least a limiting element provided in the external cylinder able to engage with the alignment elements, and a key to be inserted into the inner cylinder to move the alignment elements to an unlocking state with the limiting element. When the engaging member is detached, the limiting element is separated from the external cylinder, and then the original coupling of the key and the limiting element are substituted by another coupling of a key and a limiting element, such that, when a user loses his key, he can have the lock core assembly repaired without changing the entire lock set.

Abstract: A twisting tumbler lock with a side bar is provided with additional levels of security by a axially reciprocable slider which is normally positioned to block operation of the side bar but is moved by a specially configured key to free operation of the side bar. This provides a third level of locking security, it also allows master keying. The unique key has a portion of a rib formed to cooperate with the slider to further allow key control.

Abstract: A twisting tumbler lock with a side bar is provided with additional levels of security by a axially reciprocable slider which is normally positioned to block operation of the side bar but is moved by a specially configured key to free operation of the side bar. This provides a third level of locking security, it also allows master keying. The unique key has a portion of a rib formed to cooperate with the slider to further allow key control.

Abstract: An electrically operable cylinder lock device includes a body with a bore housing a rotatable barrel, having a key slot. The barrel is locked in position normally by a spring-loaded bar which extends axially of the barrel and is movable radially thereof. A slot in the barrel receives the bar and cam formations in the slot act to lift the bar to a withdrawn position in which it can be held by an electromagnet. A plunger in the bore has a slotted end to receive the tip of the key and provides a driving connection between the key and an output cam.

Abstract: A novel locking system of the type which has very useful properties and at the same time can be produced cost-effectively, and is therefore suitable to be a mass-produced product, particularly for use in motor vehicles and building fixtures.

Abstract: A mechanical lock is provided which prevents forced rotation of the cylinder when a mated key is not present in the key slot. The lock includes a cylinder rotatably supported within a sleeve. The cylinder defines a longitudinal axis and a keyway disposed along the axis for slidably receiving a key therein. A cylinder head extends circumferentially about a first end of the cylinder and includes a frangible ring portion which fractures in response to a predetermined rotational force. A tab extends from the cylinder head and includes a frangible base which also fragments in response to a predetermined rotational force. The mechanical lock further includes a sidebar for preventing rotation of the cylinder when a mated key is not present therein. The sidebar includes a rib extending therefrom which prevents the longitudinal sliding of the sidebar out of the mechanical lock when the cylinder head has been broken away from the cylinder.

Abstract: A cylinder lock-key-combination, which comprises a lock body (5) having a lock cylinder (6) which is arranged to control a bolt element (4) connected thereto and which encloses a set of locking discs (7) provided with peripheral notches (13) and being symmetrical so that the cutting range of the peripheral notches (13) determining the opening combination of the lock is located on both sides of their axis of symmetry (A). A locking bar (9;10) which in its locked position is located partly in a groove (12) made in the inner surface of the lock body (5) and partly in a slot (17) in the lock cylinder (6) prevents turning of the lock cylinder (6) with regard to the lock body (5). The locking discs (7) can be turned by means of a key of the lock into a position in which the peripheral notches (13) thereof are located at the position of the locking bar (9;10) forming a uniform channel into which the locking bar (9;10) enters thereby releasing the lock cylinder (6) to turn with regard to the lock body (5).

Abstract: A cylinder lock (1) comprises a lock cylinder (2) and a key-operated cylinder plug (3). A latching element (10) is located in the region of the boundary surface between the lock cylinder and the plug and is activated by an electrically actuable blocking element (11) which is movable between a release position and a blocking position. The plug cannot be turned by means of the key when the blocking element is in its blocking position. The latching element (10) has a length which is slightly shorter than the axial length of the plug (3).

Abstract: A cylinder lock-key combination includes a cylinder housing (2) and a plug (3) provided with a key slot (3a). A row of pin tumblers (5) coact with a side bar (6) in a manner to prevent the side bar moving to its release position unless the correct key (4) is inserted into its operative position in the plug (3). The side bar (6) is activated at the ends of the side bar by one or more driving pins (7) which coact with the key side surface and which are guided in the plug for movement at right angles to the plane of the key slot (3a) and which function to press the side bar to its locking position as the key is withdrawn from its operative position.

Abstract: A safety lock for house doors and the like, adapted to be operated by a key having a front active profile (3), comprises an outer drum member (4), a cylindrical body (9) rotatably mounted with respect to the drum member and arranged within the latter and a number of safety plates (29) having notches (29a), housed internally to a cavity (13) of the cylindrical body and pivotally mounted around a pin (30). A tab (27) prevents, when the lock is locked, the rotation of the cylindrical body (9) with respect to the drum member (4). By inserting the key in the keyhole, the safety plates reach a reciprocal position which is such that the notches (29a) define a seat which receives the tab (27) thereby unlocking the lock. A cam member (33), which is tiltalble around the pin (30) and is urged by a spring (24), brings the tab back in the locking position when the key is withdrawn. By the oscillating arrangement of the safety plates (29) and the cam member (33), a lock of reduced axial bulk is obtained.

Abstract: A motor vehicle ignition lock includes a housing, a lock barrel rotatable on the housing having a key slot, and a side bar on the lock barrel. The ignition lock further includes a solenoid on the housing and a slide on housing connected to a plunger of the solenoid. The slide has a notch which captures the side bar in an extended position of the side bar and an extended position of the slide. The ignition lock is unlocked in a mechanical unlocking mode by a key inserted in the key slot in the lock barrel to withdraw the side bar from the notch in the slide. The ignition lock is unlocked in an electronic unlocking mode by the solenoid when the plunger of the solenoid shifts the slide from its extended position to a retracted position to remove the notch from the side bar.