Abstract: A cylinder lock and an associated key, the lock including a fixed body and a plug which is accommodated within a respective cavity of the body and can rotate with respect to the body. The plug includes a substantially longitudinal compartment for the functional accommodation of a key which includes a grip portion from which an elongated body extends and which is provided with coding grooves and protrusions on its outer surface. Between the plug and the body are respective accommodation channels for translating coding elements, which open onto the substantially longitudinal compartment. The plug includes at least one auxiliary duct which faces the substantially longitudinal compartment and extends at least partially in the body for the sliding accommodation of at least one coding unit that includes at least one pin and at least one conical portion.

Abstract: A cylinder lock and key combination with a key slot and at least one dual tumbler assembly for locking a key plug against rotation. The dual tumbler assembly includes an outer pin movable elevationally in a chamber in the key plug, and an inner pin movable telescopically in a cylindrical bore in the outer pin. The outer pin is provided with at least one key contacting end portion for engagement with a first code portion of a key blade upon insertion thereof in the key slot. The inner pin is provided with at least one key contacting end portion, for engagement with a second code portion of the key blade. The key contacting end portions of the outer and inner pins of the tumbler assembly are located adjacent to each other at axially and radially well-defined code positions relative to a center-line of the tumbler assembly.

Abstract: A lock with a multiply circled cylinder mainly comprises a lock body and a key. The lock body includes a multiply circled cylinder and a housing receiving the multiply circled cylinder. The multiply circled cylinder assembly further comprises a front rotating shaft, a front shaft seat, a rear rotating shaft and a rear shaft seat. The housing has an outer sleeve and an inner sleeve. The key comprises a large cylindrical key parts, a small cylindrical key part and a central key pole. The front rotating shaft has a plurality of outer locking pins and the rear rotating shaft has a plurality of inner locking pins. The large cylindrical key part has a plurality of teeth corresponding to the outer and inner pins in the front and rear rotating shafts. Hence, the lock with a multiply circled cylinder assembly is capable of being constructed as either the rotary lock or the push-in lock easily.

Abstract: Tumbler pins 2 are movably housed in a plug 1. A locked/unlocked state is determined by the turning position on the moving direction center axes of the tumbler pins 2. An unlocking key 4 to be inserted into the plug 1 is provided with unlocking code forming recesses 3 for determining the turning positions of the tumbler pins at code decision positions. The tumbler pins 2 are provided at their leading end portions with drive portions 5, which have slope sides of conical faces gradually reduced in diameter toward the leading ends and having rotational centers offset from the moving direction center axes. The side wall faces of the unlocking code forming recesses 3 are formed of conical faces having rotational centers substantially aligned with those of the conical faces forming the slope sides of the drive portions 5.

Abstract: A lock system is provided including a lock core and a token. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocking body, and a solenoid. The solenoid has a shaft that is movable between a first position in which the blocking body is locked to prevent rotation of the lock actuator about the axis and a second position in which the blocking body is unlocked to allow rotation of the lock actuator about the axis. The token is couplable mechanically to the lock actuator. The solenoid moves the shaft from the first position to the second position so that the blocking body is unlocked if the token has a valid access code.

Abstract: An anti-picking cylinder lock including a lock body, a plug defining a keyway, a plurality of telescopic body pin assemblies, each of the telescopic body pin assemblies including an outer body pin and an inner body pin and a plurality of telescopic plug pin assemblies, each of the telescopic plug pin assemblies including an outer plug pin and an inner plug pin, wherein at least one of the outer plug pins and the outer body pins is formed with at least one inner facing recess configured and arranged such that, upon an attempted picking of the lock, a portion of at least one of the inner plug pins and the inner body pins tends to engage the at least one recess, thus causing at least one of the inner plug pins and the inner body pins to move together in at least one direction.

Abstract: A lock system comprises a lock core and a token. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocker movable perpendicular with the axis, and an electromagnetic actuator. The electromagnetic actuator has a shaft that is movable parallel with the axis between a first position in which the blocker is locked to prevent rotation of the lock actuator about the axis and a second position in which the blocker is unlocked to allow rotation of the lock actuator about the axis. The token is couplable mechanically to the lock actuator. The electromagnetic actuator moves the shaft parallel with the axis from the first position to the second position so that the blocker is unlocked if the token has a valid access code.

Abstract: A cylinder lock with a body, in which a plug with a profiled, axially extending key slot is rotatably arranged, and in which the body and the plug are provided with a number of bores approximately perpendicular to the plug axis, in which bores a number of locking pins is provided, said locking pins consisting of tumbler pins and driver pins, and in which the locking pins are lifted by insertion of a key so that the end faces of the tumbler pins flush with the periphery of the plug. With a view to preventing the lock from being opened with a tool which has a striking effect on the locking pins, at least one of the driver pins consists of two members, one member being movable relative to the second one in the longitudinal direction of the pins, and the movable member abutting in the rest position against the second member with a contact portion directed towards the plug.

Abstract: A lock system comprises a lock core and a token having an access code. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocker movable between a locking position in which the lock actuator is prevented from rotating about the axis and a releasing position in which the lock actuator is permitted to rotate about the axis, an electric circuit having a token reader, and an electromagnetic actuator having a shaft that is movable parallel with the axis. The token is couplable mechanically to the lock actuator. The electric circuit signals the electromagnetic actuator to move the shaft parallel with the axis so that the blocker is movable from the locking position to the releasing position if the access code read by the token reader matches a valid access code.

Abstract: A lock assembly includes a core rotatably received in a casing and the core has first passages each having a first pin received therein. The casing has a protrusion in which second passages are defined and located in alignment with the first passages. Each second passage has a second pin received therein and biased by a spring so as to push a lower end of each first pin extended in the key way in the core. The second pins are located at a boundary surface between the core and the casing. A piece is received in the first passage and located at the boundary surface. A key with serration has a magnetic member which attracts the piece to move toward the key so that the piece is moved and the core is rotated relative to the casing.

Abstract: A cylinder lock with a key, the lock having a plug with at least one hole intersecting the keyway. The hole is provided with two shoulders, one whereof lies further outward, the other one lying further inward with respect to the surface of the plug. An auxiliary tumbler is accommodated in the hole and comprises an auxiliary pin, an auxiliary complementary pin and a spring acting by expansion between the auxiliary pin and complementary pin. The tumbler can assume an elongated configuration, wherein the pin and the complementary pin are mutually spaced and axially offset angularly with respect to each other, or a shortened configuration, wherein they are aligned in mutual abutment without axially offset. The key has an elastic element adapted to cooperate with the auxiliary tumbler to allow, with the key inserted, compression thereof to the shortened configuration and disengagement from the notch and rotation of the plug.

Abstract: A cylinder lock with a body, in which a plug with a profiled, axially extending key slot is rotatably arranged, and in which the body and the plug are provided with a number of bores approximately perpendicular to the plug axis, in which bores a number of locking pins is provided, said locking pins consisting of tumbler pins and driver pins, and in which the locking pins are lifted by insertion of a key so that the end faces of the tumbler pins flush with the periphery of the plug. With a view to preventing the lock from being opened with a tool which has a striking effect on the locking pins, at least one of the driver pins consists of two members, one member being movable relative to the second one in the longitudinal direction of the pins, and the movable member abutting in the rest position against the second member with a contact portion directed towards the plug.

Abstract: A lock core for use with a token having an access code and a blade is provided. The lock core includes a core body, a lock actuator coupled to the core body for movement, a token communicator configured to read the access code when the blade is inserted into a passageway of the lock actuator, at least one movable tumbler element, a movable blocker, a biasing member situated between the at least one tumbler element and the blocker, and an electromagnetic actuator coupled to the core body and coupled to the token communicator. Insertion of the token in the passageway moves the at least one tumbler element to store energy in the biasing member. If the token communicator reads the access code after insertion of the token in the passageway, the electromagnetic actuator moves to unlock the blocker and the biasing member releases energy to move the blocker.

Abstract: The lock bolt has a bolt tip (2) a bolt head (3) whose back wall (4) is intended to rest against a housing pin for sliding this pin into the rotary closure cylinder (24). The bolt tip (2) is supported on the bolt head (3) with a spring engaged between the bolt tip (2) and the bolt head (3) so that it can slide in a limited fashion between an inner and an outer position. The bolt head (3) has a longitudinal bore (5) in which the bolt tip (2) is supported so that it can slide. The lock bolt to a large extent prevents unlocking attempts in which vibrational movements are exerted on the tumblers.

Abstract: A lock includes a casing, a cylindrical rod and a key, the casing having a longitudinal hole for the cylindrical rod received therein. The casing and the cylindrical rod have a main transverse hole device defined radially respectively therein and are in alignment with each other for receiving a main pin device therein, the cylindrical rod having a key hole defined longitudinally therein, at least one offset transverse hole device defined between the key hole and the main transverse hole device which is parallel to the offset transverse hole device so as to communicate with the main transverse hole device and the key hole, the offset transverse hole device having an offset pin device received therein, the offset pin device being lifted by a movement of the key inserted in the key hole to operate the main pin device to open the lock.

Abstract: A key blank including a generally elongate shaft portion defining a key combination surface adapted to have formed thereon key cuts which define a key combination, the key blank including a movable pin element retained within the elongate shaft portion, the movable pin element being displaceable in a single direction, outwardly from the key combination surface.

Abstract: A key and rotary cylinder for a safety lock are disclosed. The key has in its shank a continuous bore hole in which two opposite control elements are supported. These control elements are movable inwardly against the restoring force of a pressure spring arranged in the bore hole. An additional tumbler is lifted by a control element when the key is inserted into a key slot of the rotary locking cylinder. This additional tumbler engages in a recess of the stator. When using a key without a control element, the rotor is blocked by means of the tumbler. When using a key according to the invention, the rotor can be turned and the tumbler is lifted out of the recess and the control element is moved inward radially. After turning by 90.degree., for example, a counterpin of the stator is brought into line by the tumbler. In the absence of a control element, the rotor is blocked by the counterpin in this case as well.

Abstract: A rekeyable lock which includes a master lock activated by a master lock key, a rekeyable lock adjacent the master lock having a lock mechanism activated by a keyable lock key, and structure operably extending from the master lock to the rekeyable lock for changing the length of the lock mechanism within the rekeyable lock so that a different rekeyable lock key can be utilized to operate the rekeyable lock.

Abstract: A cylinder lock has a cylindrical plug which is formed with a longitudinally extending keyway and which has a plurality of pin tumblers extending into the keyway. Each of the pin tumblers has a cylindrical outer part and a concentric inner part telescopically slidable within the outer part. A key is inserted into the keyway and has a tumbler activating side which is formed with a longitudinally extending groove, a groove base having projections and/or recesses formed therein and a pair of upwardly extending key blades joined by the groove base. The inner part of each of the pin tumblers has a distal end which extends into the groove and which engages a corresponding one of the projections and/or recesses. The key blades are formed with matching key bit grooves which engage the outer parts of the pin tumblers.

Abstract: A cylinder lock including a housing and a plug disposed in the housing and arranged for rotation relative thereto, a first plurality of chambers formed in the housing and a second plurality of chambers formed in the plug and arranged such that each one of the first plurality of chambers extends coaxially with a corresponding one of the second plurality of chambers, when the plug is in a first rotational orientation relative to the housing, a first multi-element pin assembly being disposed in said first plurality of chambers and a second multi-element pin assembly being disposed in said second plurality of chambers, the first multi-element pin assembly including an outer pin element having an axial recess and an inner pin element disposed for selectable axial orientation relative to the outer pin element and apparatus for retaining the inner pin element against disengagement from and undesired misalignment with respect to the outer pin element.

Abstract: A cylinder lock includes a cylindrical housing connected with a circular insert at its bottom to receive therein a movable barrel and a fixed barrel. A plurality of lock pin assemblies are set in a plurality of pin holes vertically through the movable lock barrel to control the connection of the movable lock barrel with the fixed lock barrel by use of the various stepped pins of an authorized key. The stepped pins can be detached from the key for keeping separately.

Abstract: A pin tumbler lock comprises a cylindrical shell, a plug fitted within the shell, and rotatable by key means. The plug has first bores for receiving first pin tumblers. The first bores are substantially normal to the axis of the plug. The shell has second bores for receiving second pin tumblers therein. The second bores are aligned with first bore. First and second pin tumblers are located in bores. The second pin tumblers are forced by a spring into the aligned first bores to thereby prevent rotation of the plug. The first and second pin tumblers have substantially mating surfaces at respective ends providing contact along their entire length. The plug includes two grooves in a plane normal to the axis of the plug along its periphery, one groove on each side adjacent to first bores, thereby providing a non-linear shear line between the plug and the shell.

Abstract: A key holder comprising in combination a housing and a ring member, the housing having a resilient tongue which may be depressed so as to provide an opening through which the ring member may be inserted. The ring member is provided with a slit which permits keys to be attached and detached, said slit being inaccessible when the ring member is assembled to the housing, whereupon keys can be attached to or detached from the ring member only when the latter has been separated from the housing.

Abstract: A dual pin tumbler lock and a key having two planar faces wherein the two planar faces of the key blade have similar concentric projections and depressions on both sides of a longitudinal axis for operating the lock, regardless of into which side of the dual lock the key is placed, and wherein each tumbler of the fixed part of the lock is made of two parts -- one part telescopically slidable within the other, both parts being urged by springs against a corresponding tumbler housed in the rotating cylinder which corresponding tumbler is likewise made of two telescopic parts.