Abstract: Disclosed is a locking device which comprises a housing, and a cylinder device rotating within the housing, wherein the housing is provided with a protrusion therein to prevent the cylinder device from being rotated, and the cylinder device includes a motor, a cylinder receiving the motor, a tilting mechanism located at the front of the cylinder, having an upper portion tilted to be fixed to the protrusion of the housing by forward rotation of the motor and a recess released from the protrusion of the housing by reverse rotation of the motor, and a locking plate adapter fixed to the tilting mechanism, and a locking plate fixed to the adapter.

Abstract: An electromechanical cylinder lock includes an outer lock shell and a rotatable lock barrel located therein which is controlled by dual locking features. A side bar or fence selectively blocks and permits rotation of the barrel with respect to the shell in response to insertion of a key into a keyway in the barrel. A slider bar is movable between a blocking position in which the side bar is prevented from permitting rotation of the barrel, and an unblocking position in which the side bar permits rotation of the barrel. Alternately, a blocking mechanism is provided to block motion of tumbler pins in the cylinder lock. A shape memory alloy actuator, such as a wire made of NITINOL disposed in the barrel is activated by an electric current in response to determination by an electronic control device whether an attempt to open the lock is authorized. Thermal interlock protection from external heating of the lock is also provided.

Abstract: A latch has a pawl, a handle connected to the pawl, a manual lock for preventing movement of the handle between a closed position and an open position, an electrical lock for preventing movement of the handle between the closed position and the open position, and a shuttle connected to both the manual lock and the electrical lock. The shuttle is moveable between an engaged position in which the handle is prevented from moving from the closed position to the open position and a disengaged position in which the handle is permitted to move from the closed position to the open position. Upon deenergization of the electrical lock, the shuttle remains in the engaged position if the shuttle was in the engaged position prior to deenergization and the shuttle remains in the unengaged position if the shuttle were in the unengaged position prior to deenergization.

Abstract: A programmable electronic lock with a closing tongue is actuated with an actuating mechanism formed by a mobile knob acting as a button joined to the closing tongue. Actuation of the mobile knob generates a movement of the closing tongue and closure of the lock. Recovery of the mobile knob to its initial position generates an opening of the lock. Furthermore, an electronics board is activated with a transponder key and controls operation of the lock by deactivating and subsequently activating a blocking mechanism formed by a motor that actuates a punch via a gear mechanism. When the punch is in a blocking position it is located against the actuating mechanism. When the punch is in an unblocking position, it is separated from the actuating mechanism and allows the movement of the closing tongue by unblocking the actuating mechanism.

Abstract: A locking mechanism of a linear motor travel slider, includes: a serration member having a teeth portion and disposed on one of the bed and the travel slider extending in a slider-traveling-direction; a bracket supported by the other of the bed and the travel slider; an actuator supported by the other of the bed and the travel slider; a locking member supported by the actuator having a teeth portion engageable with the teeth portion of the serration member; and a controller for controlling the actuator to retain the lock member in an unlocked position when the linear motor is energized and for stopping the actuator when the linear motor is in a stop state due to a power failure. The locking member includes an urging member for making the locking member engage with the serration member while the actuator is in a stop state.

Abstract: Programmable electronically closing lock, with knob of the type which incorporates programmed electronic elements which make possible bidirectional communication between lock and key without contact between the two is disclosed. It consists of an electronic board (7) with a microcontroller (17) which controls its opening/closing and communicates with an antenna (8) built into a knob block, made up of a knob (3) joined permanently to a push button/mounting hole piece (5) which has an upper surface (s), lateral slots/guides (13) and a fixed knob guide (4) carrying the antenna (8) and in which the knob (3) moves up and down under the action of a coaxial spring (11) on the knob guide (4) and pins (14) of a tongue block (6) sliding on the slots (13) causing movement in the tongue block. The microcontroller (17) operates a bi-stable solenoid (9).

Abstract: A door lock device includes a lock having a deadbolt with a first end and a second end. The second end is structured to disengage from an object, such as a portion of a door frame, in a first position and to engage the object in a second position. A spring directly engages and biases the first end of the deadbolt toward the second position thereof. A solenoid includes a plunger structured to engage the deadbolt, in order to hold the deadbolt in the first position thereof. A sensor is structured to sense at least one of the first and second positions of the deadbolt. A wireless controller is structured to receive a wireless signal and responsively energize the solenoid, in order to disengage the plunger of the solenoid from the deadbolt and release the deadbolt to the second position thereof.

Abstract: A remotely controlled lock apparatus is attached to a container, such as a tool box, that includes a container lid portion and a container body portion. The apparatus includes a manual key-operated cylinder connected to a wall of the container. A manually-operated lock latch assembly is supported by a wall of the container and includes a pivoted manually-operated lock latch member which includes a latch-to-container locking portion and a blocking-member abutment portion. A remotely controlled electrically powered linear mechanism assembly is connected to a wall of the container, and a dual latch control unit, is connected between the electrically powered linear mechanism assembly and the manually-operated lock latch assembly and between the manual key-operated cylinder and the manually-operated lock latch assembly, for selectively controlling locking and unlocking of the lock latch assembly by the electrically powered linear mechanism assembly or by the manual key-operated cylinder.

Abstract: Described herein is a locking device and method which integrates mechanical components in a hollow metal door frame with electronic access components. The electronic components override the original mechanical components of the lock to create a fail-safe situation in which the original mechanical lock may be disabled. In the preferred embodiment, my upgraded locking device can be re-installed within a hollow door frame, thereby minimizing service costs and doorframe modification costs. The electronically controlled component can be a cam retaining locking bar which contains a roll pin and an open area bordered by two cut sides. The open space eases lock installation with a door by avoiding protruding door structures such as metal tabs.

Abstract: A lock for a washing machine or the like provides fast actuation through a solenoid driven bolt that remains stably in the locked position after power is no longer applied to the solenoid. The possibility of power failure preventing subsequent access to the washing machine is avoided through the use of a slower actuation time, thermal actuator storing sufficient energy to unlock the bolt after a time delay when power is lost.

Abstract: A dead bolt lock system having one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. An inertia assembly restrains movement of the dead bolt when a shock load is applied to the door, but allows the dead bolt to move when a shock load is not present. The inertia assembly includes an actuator weight and a bolt lock lever that can translate and rotate in response to the application of the shock load. In addition, the inertia assembly includes a return spring that biases the inertia assembly back into its original position for facilitating movement of the dead bolt after the application of the shock load.

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 door lock with controllable handle operation including a bolt (3), a follower (5) for moving the bolt and an operation axis (4), on both ends of which an actuator can be installed for operating the follower (5), whereby force transmission from either side of the lock to the follower (5) is established by means of movable coupling members (10a, 10b), which are controlled by a solenoid arrangement (8, 9) or the like, and in which the follower (5) is provided with two separate torsion units (6a, 6b) installed on the operation axis (4) on different sides of the follower (5) and turnably secured thereto, which units can be connected to force transmission with the follower (5) by utilising said coupling members (10a, 10b).

Abstract: A wireless lock assembly includes a latch assembly that includes a wireless, electrically operated latching component, and a manually movable latching component. The wireless, electrically operated latching component is movable between activated and inactivated positions. The electrically operated latching component will remain in the activated position for a predetermined period of time, after which it will return to the inactivated position. The lock assembly also includes a handle assembly that is manually movable from a non-enabled position into an enabled position when the electrically operated latching component is moved to its activated position. When the handle assembly is in its enabled position, it can be manually moved so as to move the manually movable latching component from a locking condition to a releasing condition. The handle assembly can be manually moved from its non-enabled position to its enabled position by manual engagement and depression of an exposed surface portion thereof.

Abstract: Described herein is a locking device which integrates mechanical components in a hollow metal door frame with electronic access components. The preferred embodiment comprises a magnetic field generating device, an appropriately shaped metal solenoid housing and a cam retaining locking bar attached to a hollow stem. The electronic components override the original mechanical components of the lock to create a fail-safe situation in which the original mechanical lock may be disabled. In the preferred embodiment, my upgraded locking device can be re-installed within a hollow door frame, thereby minimizing service costs and doorframe modification costs.

Abstract: A door lock structure including: an object providing a storage space; a door being mounted to the object to be capable of opening and closing the storage space; a locking pin member being provided inside of the door and comprising a fixing pin which reciprocally moves within a door area restricted by an inside surface of the door; and a pinhole member being mounted to the object to selectively combine with the fixing pin within the door area when the door is closed is provided.

Abstract: A lock including a frame, a handle operated latch bolt, a handle shaft, a latch bolt actuating mechanism and a mechanism for locking the handle shaft. The latch bolt locking mechanism includes a locking lever which is fixed with respect to the handle shaft and arranged to cooperate with a stop element on the frame. The latch bolt locking mechanism further includes an electromagnet which moves the locking lever with respect to the handle shaft or the stop element with respect to the frame so that the locking lever can be unlocked and locked behind the stop element. The locking device, which is either formed by the locking lever or by the stop element, is movable by the electromagnet in a direction forming an angle greater than about 45°, preferably greater than about 65°, with a flat plane extending at right angles to the longitudinal axis of the handle shaft. A more reliable locking and unlocking of the handle shaft can be produced.

Abstract: A lock system for a door. The lock system includes a clutch mechanism and a lockset with a lockable latch and actuator for operating the latch. The clutch mechanism includes an input cam, an output cam, and an engagement pin having an axis and being dimensioned and configured for axial movement between a first position, in which the engagement pin engages both the input and output cams so that the input and output cams rotate synchronously, and a second position, which allows independent rotational movement of the input cam and the output cam.

Abstract: An electronic lock system comprises a recessed grip which can be mounted on a door leaf or the like, in which a lockable grip lever is held by one end around an axis parallel to the door leaf by the recessed grip or by a drive shaft for a bar lock, sash lock or the like which is held therein, and further comprises a locking device by which the grip lever can be locked into its position in which its is swiveled into the recessed grip. According to the invention, the locking device is constructed in a modular manner and comprises the following exchangeable components (modules): a base module with a movable bolt which, in its locking position, secures the grip lever in its swiveled in position, and with a device for supplying electric energy (e.g., a battery) for driving the movable bolt, which base module can be inserted through an opening formed by the recessed grip and can be secured therein.

Abstract: A remote-controlled burglary preventing door lock includes a motor to be started by a remote controller to rotate reversely and drive a cam disk to rotate counterclockwise and actuate the upper end of a blocking pin to move downward and disengage from the stop rod at the inner end of a deadbolt, letting the deadbolt no longer blocked by the blocking pin. Thus, the door lock can be unlocked. To lock the door lock, the motor is started by a remote controller to rotate clockwise and drive the cam disk to rotate clockwise and actuate the upper end of the blocking pin to move upward and block the rear side of the stop rod at the inner end of the deadbolt, letting the deadbolt blocked by the blocking pin and impossible to retract toward the interior of a lock shell, having an excellent effect of burglary prevention.

Abstract: An electrified cylindrical lock having a reversible solenoid that can be easily changed over between active push and active pull. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The coil has a front end and a rear end. The front coil end always faces toward the latch member and the rear end always faces away from the latch member. The armature includes a magnetic slug. The slug is disposed at the rear coil end for the active push mode or disposed at the front coil end for the active pull mode.

Abstract: A dead bolt lock system which may use one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. Generally, the lock system tests the condition of the security lock or locks before allowing retraction of the dead bolt. An inside escape lever is provided as a life safety feature to allow egress from the secured area regardless of the conditions of the security locks. A trigger hold back device maintains the dead bolt in a retracted position until the door has been opened and closed again. Lock covers include associated locked-on-by-combination and relock features. A night latch or lock down feature is provided to prevent access, including authorized access through the outside of the lock system. A force blocking assembly is provided to prevent force applied to the dead bolt from harming internal components of the system. A torque override clutch prevents excessive torque applied to the outside door handle from harming internal lock system components.

Abstract: A security and locking mechanism for the double door type security safe, vault or bunker wherein the double door can be manufactured by conventional structure or the through use of a plurality of modular panels, the locking and securing mechanism comprising a pair of longitudinal, vertically oriented bolt channels secured to the inner surface of each of the double doors proximate the vertical edges of the double doors, the bolt channels proximate the hinged edge of each door having a plurality of passive locking rods extending there through and extending beyond the hinged edge of the door, the second longitudinal bolt channels on the doors having a plurality of apertures through vertical web members, are secured proximate the seam formed between the double doors, one of the bolt channels being positioned such that it overlaps the seam formed between the two doors, the active locking and securing mechanism comprising a plurality of horizontally oriented throw bolts passing through the longitudinal bolt channel

Abstract: An electrified cylindrical lock having a reversible solenoid that can be easily changed over between fail safe and fail secure. The solenoid includes a coil and an armature that may be assembled for an active push or an active pull of a latch member. The latch member locks or unlocks the lock. The coil has a front end and a rear end. The front coil end always faces toward the latch member and the rear end always faces away from the latch member. The armature includes a magnetic slug. The slug is disposed at the rear coil end for the active push mode or disposed at the front coil end for the active pull mode.

Abstract: An installation arrangement for a solenoid controlled handle operation in a door lock in which force transmission from an operation axis for a handle or the like to a follower acting on a bolt of the lock is arranged by means of a movable coupling member, which receives its guidance from a solenoid arrangement. The follower is provided with two separate torsion units which are installed on the operation axis on different sides of the follower and are turnably supported to it and which can be selectively coupled by means of said coupling member to be in force transmission connection with the follower.

Abstract: A solenoid arrangement for controlling handle operation in a door lock, in which force transmission from an operation axis of a handle or the like to a follower acting on a bolt of the lock is provided by a movable coupling member which receives its guidance from the solenoid arrangement. The arrangement includes a shaft element which is arranged to move through a solenoid against the force of a spring and which moves a turnable lever member selecting the operating position of said coupling member. The position of the turning axis of the said lever member with regard to the coupling member is arranged to be selectively changed to provide a desired handle operation.

Abstract: A clutch assembly for coupling a first spindle to a second spindle. The clutch assembly has a first disc connectable to the first spindle. A first finger is operatively coupled to the first disc and pivotable between a first engaged position and a first disengaged position. The first finger opposes rotation of the first disc in a first direction when the first finger is in the first engaged position. A second disc is connectable to the second spindle. The second disc pivots the first finger from the first engaged position to the first disengaged position when the second disc is rotated in the first direction through a first range of angular positions and rotates the first disk in the first direction when the second disc is rotated beyond the first range of angular positions.

Abstract: A motorized locking mechanism for locking and unlocking a device having a hub rotatable by a handle about a hub axis. A reversible motor turns a threaded spring screw to move a locking spring and vertically drive a connecting arm between locked and unlocked positions. A locking slide is mounted on the connecting arm and pivots parallel to the hub axis. The parallel pivoting motion of the locking slide protects the locking mechanism against damage. If the locking slide is temporarily prevented from moving into or out of locking engagement with the hub, the motor may still turn and the locking spring subsequently moves the locking slide in the desired direction without the necessity of reactivating the motor.

Abstract: An electromechanical locking mechanism provides a plug with a rekeyable primary lock mjechanism such as a tumbler stack, an electromechanical operator such as a solenoid or a motor, and an electronic circuit having a memory, or an electronic memory and an electronic logic stage, controlling activitiation and operation of the electromechanical operator, contained entirely within the plug. Insertion of a blade of a key that is properly profiled and bitted to correctly displace the primary lock assembly relative to a cylinder encasing the plug, and application by the key of electrical power, or of electrical power and a correct data signal, to the electronic circuit, will cause activation of the electrical operator and repositioning of a distal member of the operator relative to the cylinder, and thereby enable torque manually applied to the blade of the key to rotate the plug within the cylinder.

Abstract: Described herein is an electromagnetic locking device which integrates mechanical lock components in a hollow metal door frame with electronic access components. The physical and mechanical modifications comprise a magnetic field generating device, an appropriately shaped metal housing and a cam retaining locking bar. The method for integrating a magnetic field generating device and cam retaining locking bar with previously installed mechanical lock components minimizes service costs and replacement of doorframes.

Abstract: A motorized locking mechanism for locking and unlocking a device having a hub rotatable by a handle about a hub axis. A reversible motor turns a threaded spring screw to move a locking spring and vertically drive a connecting arm between locked and unlocked positions. A locking slide is mounted on an end of the connecting arm so that it can pivot parallel to the hub axis. As the motor drives the connecting arm to the locked position, the locking slide moves into interfering engagement with the hub to lock the device. The pivoting motion of the locking slide protects the locking mechanism, and particularly the connecting arm, against damaging forces that can be applied by the rotating hub through the locking slide. If the locking slide is temporarily prevented from moving into or out of locking engagement with the hub, the motor may still turn and the locking spring subsequently moves the locking slide in the desired direction without the necessity of reactivating the motor.

Abstract: An installation arrangement for a solenoid controlled handle operation in a door lock in which force transmission from an operation axis for a handle or the like to a follower acting on a bolt of the lock is arranged by means of a movable coupling member, which receives its guidance from a solenoid arrangement. The follower is provided with two separate torsion units which are installed on the operation axis on different sides of the follower and are turnably supported to it and which can be selectively coupled by means of said coupling member to be in force transmission connection with the follower.

Abstract: An electrified mortise lock where the same method and articles can be used for electrifying the mortise locks of many manufacturers and styles. The electrified mortise lock includes a solenoid and a cradle. The cradle includes a frame for embracing the solenoid and cradle pins for fixing the solenoid to a housing.

Abstract: An electronic locking system is provided wherein an electronic lock's restriction of movement of a locked securing member, such as a door latch or bolt, can be selectively overridden from inside a locked enclosure by manual manipulation of a handle. The handle moves the securing member to open a locked barrier even though the electronic lock remains in a locked condition.

Abstract: A security system for a storage compartment including a latch assembly disposed on an interior side of a door for latching the door in a closed position with the storage compartment. A plurality of reciprocating latch elements are included in the latch assembly for latching the door in a closed position with the storage compartment. A latch actuator included in the latch assembly moves the latch elements to latch the door. A master lock assembly controls operation of the latch actuator by having a first locking part of the master lock assembly interlocking with a second locking part carried by the latch actuator. A tamper-resistant master lock control controls operation of the master lock assembly from outside the storage compartment whereby access to the compartment interior is prevented when the latch assembly is latched and the master lock assembly is in the locked position.

Abstract: Clutch device for locks which consists of an interior axis, an exterior axis, a frame or static body, an elastic element, a radial trigger, a radial trigger lock and a radial actuator; wherein: the interior axis, exterior axis and static body comprise a coaxial assembly in which the exterior axis penetrates an axial cavity of the interior axis while both axes are assembled within the static body, the elastic element is in a fixed relative position with respect to the static body and in an annular housing defined between this static body and the interior axis, the radial trigger is lodged in a movable position within the interior axis and has a length equal to the difference between the exterior diameter of the exterior axis and the interior diameter of the static body, the radial trigger lock is installed within the exterior axis with its tip in the exterior diameter of this exterior axis and with its tail end placed against one end of a radial compression spring.

Abstract: A remote-controlled door lock includes a lock shell provided inside with a battery base, a circuit board, a deadbolt and two electromagnetic valves. The deadbolt has a through hole connected sidewise to a slide slot with a smaller breadth than the diameter of the through hole. The two electromagnetic valves are respectively positioned on and under the door bolt. The two electromagnetic valves are controlled to operate by a remote controller and actuate the deadbolt to move to a limited position. The deadbolt cannot be unlocked with a key only before it is released by a remote controller, thus obtaining the best effect of anti-theft.

Abstract: An electromechanical locking mechanism provides a plug with a rekeyable primary lock mjechanism such as a tumbler stack, an electromechanical operator such as a solenoid or a motor, and an electronic circuit having a memory, or an electronic memory and an electronic logic stage, controlling activitiation and operation of the electromechanical operator, contained entirely within the plug. Insertion of a blade of a key that is properly profiled and bitted to correctly displace the primary lock assembly relative to a cylinder encasing the plug, and application by the key of electrical power, or of electrical power and a correct data signal, to the electronic circuit, will cause activation of the electrical operator and repositioning of a distal member of the operator relative to the cylinder, and thereby enable torque manually applied to the blade of the key to rotate the plug within the cylinder.

Abstract: A dead bolt lock system which may use one or more security locks in conjunction with a dead bolt to provide various levels of security access to a door. Generally, the lock system tests the condition of the security lock or locks before allowing retraction of the dead bolt. An inside escape lever is provided as a life safety feature to allow egress from the secured area regardless of the conditions of the security locks. A trigger hold back device maintains the dead bolt in a retracted position until the door has been opened and closed again. Lock covers include associated locked-on-by-combination and relock features. A night latch or lock down feature is provided to prevent access, including authorized access through the outside of the lock system. A force blocking assembly is provided to prevent force applied to the dead bolt from harming internal components of the system. A torque override clutch prevents excessive torque applied to the outside door handle from harming internal lock system components.

Abstract: A vending machine locking arrangement operates electronically by way of an electric motor. In particular, the arrangement is a retrofit of an existing, mechanical-key operated T-bar, which is used to close and lock the machine's doors, to provide an electronic locking system not reliant on the use of a mechanical key. The arrangement substitutes for the conventional barrel lock at the handle-end of the T-bar a small electric motor (e.g. a camera re-wind motor) which acts upon the resident locking piece in the T-bar by, e.g., a cam arrangement. The inventive arrangement also makes use of an existing hole near the locking piece for making an electrical connection to the motor. An alternative embodiment places the motor outside the T-bar, the motor then having its own locking piece in the form of, e.g., a rocker arm engaging with an opening in the T-bar. Also disclosed is a smart-card system for driving the motor to trigger the unlocking process.

Abstract: A security door having improved security features. The door has a retractable, multiple pin deadbolt bar that can be operated by an inner or outer door handle. The inner door handle has shaft with an external screw thread that allows the handle assembly to be attached to and supported by a stabilizer mounted on the door. The door is attached to a door frame with internally mounted hinges that provide 180° rotation in only one direction such that the door may be opened to rest against the wall to which it is attached but may not be pushed in. A security bar is attached to door side panel where the hinges are located to prevent the door from being pulled out if the hinges broken. The door's lock may be controlled by a remote keypad or wireless device.

Abstract: An electronic anti-theft lock mainly internally includes an electromagnetic valve having a vertically movable rod; a locating mechanism that includes a turning plate adapted to shift the whole mechanism inward or outward in multiple steps, a restoring plate adapted to mechanically depress the rod of the electromagnetic valve at an upward extended position, and a stopper adapted to engage with the extended rod of the electromagnetic valve to stop the locating mechanism from moving inward further; and a control circuit adapted to detect a correct IC code of an inserted chip-contained key, and to excite the electromagnetic valve to extend the rod to stop a locking bolt of the locating mechanism from moving inward to open the lock only when an incorrect IC code is detected.

Abstract: A sensor for an interconnected lock assembly which can sense whether the door is in a locked or unlocked state. The interconnected lock assembly comprises a first lock assembly and a second lock assembly, both operably interconnected by a rack mounted on a carrier component. The second lock assembly is operably connected to a deadbolt latch assembly which comprises a deadbolt movable between an extended position when the carrier component is in a lowered position and a retracted position when the carrier component is in a raised position. The sensor is positioned within the interconnected lock assembly to detect when the carrier component is in a lowered position or in a raised position. The information is relayed to an electronic control module.

Abstract: An interconnected lock assembly which can remotely engage a mechanism to couple operation of an inside handle to operation of an outside handle to enable the door to be unlocked from the outside of the door without requiring a key. The interconnected lock assembly is mounted in a door and comprises a first lock assembly including an inside handle and an outside handle, and a second lock assembly interconnected to the first lock assembly. The second lock assembly comprises a deadbolt assembly operably connected to a deadbolt latch having a deadbolt movable between an extended position and a retracted position. Rotation of the inside handle operates to move the deadbolt into a retracted position. The interconnected lock assembly further comprises a remote unlocking mechanism selectively engageable to automatically couple the outside handle to the inside handle such that rotation of the outside handle moves the deadbolt into a retracted position thus unlocking the door.

Abstract: An electronic access control device has a movable locking member. A locking mechanism is operable to control the locking member. A movement detector generates a first condition in response to movement of the locking member. A key detector generates a second condition in response to detecting a key. The locking mechanism increases resistance to movement of the locking member in response to the first condition, and decreases resistance to movement of the locking mechanism in response to the second condition.

Abstract: The invention relates to an electronic key comprising electronic components for receiving or transmitting signals. Said components are integrated in a housing (20). A mechanical emergency key (30′) is provided in case of an electronics failure. Said emergency key (30′) can be inserted into a recess (27) in the housing (20) together with its key shaft (31′). The aim of the invention is to produce a key which can be handled easily. To this end, one end of the housing is provided with a recess which is undercut at least in places and which usually prevents the inserted emergency key (30′) from being pulled out. Usually, the key is in a holding position in the housing (20) with an essentially positive fit.

Abstract: An improved structure of electric lock disclosed herein employs only one electromagnetic coil and a DC power source formed of 4 3A-type dry battery unit for operating the lock instead of using two coils and an AC large power source along with a clumsy conductor layout, and a skilful arrangement of mutual positions between the driven rod and the extended portion of the actuated rod can produce an amplified driving torque effect from this minimized DC power source. Besides, the key function is controlled by a coded chip attached thereon to identify the visitor.

Abstract: A lock which includes a bolt which is movable between a locked position and an unlocked position against the action of a biassing element such as a spring, first retaining element which is engaged with the bolt and which retains the bolt in the locked position and which is movable between a first position at which the first retaining element restrains the bolt from being moved from the locked position to the unlocked position and a second position at which the first retaining element restrains the bolt from being moved from the unlocked position to the locked position, remotely actuable release element, which when actuated, causes movement of the first retaining element from the first position to the second position, and handle element for moving the bolt from the locked position to the unlocked position when the first retaining element is disengaged from the bolt.

Abstract: A door lock device comprised a main body, a lock bolt, a lock tongue, a spindle, and two moving collars. The spindle is connected with the lock bolt by a lock bolt transmission mechanism. The spindle is connected at one end with a lock control mechanism located in the external side of the main body. The spindle is provided at both ends with a moving collar having a retaining portion which is connected with the lock tongue by a lock tongue transmission mechanism. A rotating mechanism is disposed in the external side of the main body such that the rotating mechanism is coaxial with the lock control mechanism. The lock bolt and the lock tongue are coaxially driven.

Abstract: An electromechanical actuator comprises a body element and an elongated interaction element. One of the elements includes an electromagnet and the other ferromagnetic material or permanent magnet. The elements are arranged with respect to each other so that a rotational motion may be imparted to the interaction element by a magnetic field created by the electromagnet. The interaction element is rotatable between two rotational positions by changing the polarity of energization of the electromagnet. At one rotational position the interaction element is displaceable by an external force applied to one end in a direction along its rotation axis. The interaction element cooperates with the body element in a manner such that they together define the range of axial movement of the interaction element.