Abstract: Vending machines are provided having a door and a cabinet having an interior region for storing and distributing objects, such as canned or bottled beverages. Several vending machines locks are provided for locking the door to the cabinet to prevent unauthorized access to the interior region of the cabinet.

Abstract: A door opening and closing apparatus has a motor, a door latch and a power generation mechanism. When the voltage of the battery is below a level needed to drive the electric actuator, a predetermined manipulation of the power generation mechanism generates the power needed to drive the motor. Therefore, when the voltage of a battery that supplies electric power to the electric actuator is below a level needed to drive the electric actuator, the door opens.

Abstract: This disengageable strike has a strike annexed to a strike member that is slideably mounted to a strike base. The strike member and strike base are, in turn, mounted to a door frame or door opposite a slam latch. In a first position, the strike engages the latch to prevent the door from opening. An electrically disengageable inhibitor prevents manual movement of the sliding strike from the first position. However, when the inhibitor is disengaged, the strike can be manually moved/slid using an actuator (in the form of a handle annexed to the strike member) to a second position where it does not engage the latch to prevent the door from opening. A biasing spring biasing the strike and strike member towards the first position helps to return it to the first position after the actuator is released. Further, one portion of a sensor for a signal generator is mounted to the strike member such that it is opposite the other portion in the door or frame only when the strike is in the first position.

Abstract: A door handle for the side door, rear door or trunk of a motor vehicle, the door handle being fitted with a flap (1) that retracts automatically when the handle is used. The flap is fitted with a sensor (5) that detects the presence of a handle opposite the flap. When the flap is not in use, it is closed in such a way as to be flush with the external surface (2) of the door and it is held in position by a spring recall system. A computer-controlled actuation device is designed to retract the flap at the appropriate moment in order to provide access to the door opening control (8). The flap systems can be connected to an electric or mechanical opening control.

Abstract: An inside door release mechanism for a vehicle comprises first and second inputs arranged to be mounted in a mutually spaced relationship on a door inner face and an output to a latch wherein the mechanism is so constructed and arranged to be capable of causing the latch to be unlatched when both inputs are actuated simultaneously.

Abstract: A mechanism for selectively locking and unlocking a vehicle door latch, comprising a rheological fluid in operable connection with an output and an input, the fluid acting so as to in a first state prevent actuation of the output upon actuation of the input and in a second state permit such actuation.

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: A remote control lock operation system for a vehicle capable of unlocking a mechanical locking mechanism for mechanically disabling traveling of the vehicle by a infrared signal, without using the key. Components of the system include a handheld remote control transmitter, a receiver, a mechanical locking mechanism, a lock actuator and control unit, and wiring sections for connecting the lock actuator and the receiver to the control unit mounted in a common module housing contained on the vehicle body. The main components of the system, including the wiring section leading to the lock actuator, are unitized and integrate into the common module housing in order to prevent unauthorized unlocking of the lock. Also provided is a mobile communication terminal having an infrared transmitting port, and a method for using of the terminal.

Abstract: A door lock handle. The door lock handle having a fingerprint recognition module comprises a handle body having an installing groove with a designated size so as to installing the fingerprint recognition module, a handle cover having an exposing groove corresponding to the installing groove so as to expose a fingerprint recognition plate of the fingerprint recognition module installed on the handle body, a switch hole formed by perforating a part of the handle body, and a protruded conductor installed on the switch hole, the conductor serving to sense the grip of the door lock handle of the user. Herein, the conductor is electrically connected to a touch switch circuit mounted on a door lock controlling unit, and the touch switch circuit senses the grip of the door lock handle by the user and provides the sensed signal to the door lock controlling unit.

Abstract: A door entry system includes control means for controlling operation of the door entry system and a deadbolt assembly that is operable to selectively lock a door. The deadbolt assembly includes: a first bolt member movable between an extended and a retracted position; switch means arranged on said first bolt member, the switch means conveying a signal to the control means to move said first bolt member between the extended and retracted positions when the switch means is activated; and, driving means for selectively moving the first bolt member between the extended and retracted positions.

Abstract: A remote-controlled lock includes a bottom base, a transmission motor, a connecting rod, a slide member, a deadbolt, a coil spring and a casing. By pressing the unlocking press button of a remote controller, the transmission motor is started to rotate clockwise and actuate he connecting rod and the slide member to rotate to let the slide member no longer stopped by the engage block on the bottom base. Thus, the slide member and the deadbolt can be moved inward to unlock the remote-controlled lock. On the contrary, press the locking press button of a remote controller to start the transmission motor to rotate counterclockwise and actuate the connecting rod and the slide member to rotate reversely to let the engage block engaged en the engage groove to stop the slide member from moving inward, thus locking the remote-controlled lock.

Abstract: An electronic clutch assembly is for a lock system having a latch and first and second rotatable spindles, one being connected with the latch. A clutch is coupled with the first spindle, has a connective portion engageable with the second spindle, and is linearly displaceable along a first axis between a first position, where the connective portion is nonengaged with the second spindle and a second position where the connective portion is engaged with the second spindle. A cam is displaceable generally along a second axis extending generally perpendicularly with respect to the first axis and is configured to linearly displace the clutch between the two clutch positions. An electric actuator is operatively connected with the cam and configured to linearly displace the cam along the second axis such that the clutch alternatively couples the second spindle with the first spindle and uncouples the second spindle from the first spindle.

Abstract: The invention pertains to a safety cabinet with an interior that is enclosed by a housing and a housing front side with a work opening that can be closed with a height-adjustable window. The safety cabinet contains an operating unit for controlling device functions which is integrated into the housing. The operating unit comprises at least one rocker button, the button assignment of which changes depending on the operating state of the safety cabinet in such a way that a certain device function can be controlled in the respective operating state by actuating a button of the rocker button.

Abstract: An electric padlock includes a lock casing, a shackle member, a latch member, and a battery cap unit. The lock casing is formed with a receiving space for receiving a battery unit, a battery access hole, and an insert groove disposed adjacent to the battery access hole. The latch member is received in the lock casing, and is movable for locking and unlocking the shackle member relative to the lock casing. The battery cap unit includes a battery cap member mounted movably on the lock casing for closing selectively the battery access hole, and a retaining member provided movably on the battery cap member to engage the insert groove when in a retaining position such that opening movement of the battery cap member can be inhibited when the shackle member is locked on the lock casing.

Abstract: A solenoid operated mechanical mechanism for controlling the rotation of a gear comprising the use of a first linear element which moves in response to an electrical current to cause the rotation of a cam which, in turn, causes the movement of a second linear element which controls the rotation of a gear. The solenoid operated mechanical mechanism is particularly useful for controlling the opening and closing movements of a handcuff whose operating elements are comprised of a swing arm and at least one gear having teeth which engage the teeth of the swing arm.

Abstract: An electric door lock includes a handle rotatably attached to a housing, a lock device engaged in the housing, a follower rotatably secure the handle to the housing, an electromagnetic control device having a receptacle rotatably received in the follower, a plunger slidably engaged in the receptacle and extendible out of the receptacle to engage with the follower, and a latching device for selectively latching the plunger to the receptacle. The plunger may be selectively actuated to engage with the follower either by the lock device and correct keys or by the electromagnetic control device with correctly entered passwords or secret codes.

Abstract: A steering column ignition lock for a motorcycle comprises a lock housing, a closing cylinder, which can be rotated in the lock housing, and closing pins which can be moved in the closing cylinder and can be activated with a key, so that the closing cylinder can be rotated optionally relative to the lock housing or is blocked against rotation. To enable a remote control of the steering column ignition lock, a sleeve is installed rotatably within the lock housing, and the closing cylinder is inserted rotatably within the sleeve. The closing pins can be made to engage with said sleeve so as to block rotation of the cylinder relative to the sleeve. A locking bolt that can be slid in the lock housing can be made to engage with a slotted opening of the sleeve, preventing its rotation relative to the lock housing. The locking bolt has an electromagnet, which can be activated with a remote controller to cause it to disengage with the slotted opening of the sleeve.

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 lock may be constructed with a locking mechanism that uses either a cam assembly with a cylinder plug perforated by a centrally positioned keyway or a cylinder plug. The locking mechanism may be equipped with a dual armature solenoid. With the dual action solenoid constructed with a single wire coil, the distal ends of coaxially aligned armatures engage opposite axially aligned detents to maintain the lock in its locked state, while application of a potential difference across the coil draws both armatures away from their corresponding detents and toward the bore of the coil, thereby placing the lock into its unlocked state.

Abstract: A colored based lock and key, wherein the key includes a color indication incorporated thereon, and the lock includes a color sensor for identifying the color indication, so as to open the lock. According to a preferred embodiment of the invention, the key includes a blank or blanks on which at least one, and preferably a plurality of colors are incorporated. The blank or blanks can be formed of metal, plastic, or any other material on which colors or color emitting or color reflecting materials can be incorporated by various methods. According to other preferred embodiments of the present invention, the lock includes at least one color sensor arranged to sense the color incorporated on the key or on a predefined sequence of keys, when the key or keys are inserted in the lock, or put across the lock or rotated in the lock, and further includes a decision mechanism activated by an electric signal generated upon identification of the color incorporated on the key, to permit opening of the lock.

Abstract: An electro-mechanical lock release assembly for an enclosure such as a vending machine and including an electronic lock controller for disengaging a lock assembly securing the door of the enclosure against the enclosure frame in a closed, locked position. The lock controller is actuated remotely through a key controller to disengage the lock assembly and enable the door of the enclosure to be moved to an open position for accessing the enclosure.

Abstract: A latch assembly, comprising a control element having a pivot point and an actuator. The actuator has a first position in which the control element is engaged by the actuator for pivotal movement about the pivot point and a second position in which the control element is disengaged by the actuator from pivotal movement about the pivot point. The latch assembly further includes a ratchet arranged and configured for rotation with the control element when the control element is engaged by the actuator and for non-rotation when the control element is disengaged by the actuator. A highly preferred embodiment of the invention includes an automatic unlocking circuit powered by a backup power source.

Abstract: This mechanism is intended for being located in the inner escutcheon of the lock and its purpose is to minimize the forces transmitted, thereby preventing premature wear, as well as being able to be adaptable to any lock. Its structure permits to minimize the turning of the handle or outer operating knob under no load. The outer escutcheon (3) holds the key reader (4) and an outer knob (5) while the inner escutcheon (6) contains the electronic control circuit (7) powered by batteries (8), the clutch mechanism (9) and an inner operating knob (10). Exiting from the clutch mechanism (9) are two concentric shafts (21, 26), one of which acts on the tumbler (2) of the lock and the other (26) which rotates freely in its interior and to which the outer knob (5) is connected. A validated key activates an electric motor (51) or similar which displaces a collar (28) causing the clutch element (27) to bring both concentric shafts (21, 26) together temporarily, forming a single unit and permitting the opening of the lock.

Abstract: The preferred embodiments of the present invention provide an improved access control system that provides additional security for the connection between an existing locking system and an access control system, for example, to prevent tampering. The security system preferably includes a control line shield to protect a control line running from an access reader to an external lock incorporated in a door, for example. The control line shield seals the control line into the interior of the door to prevent easy access for interference and tampering Additionally, the control line shield may be removed as necessary to provide service to the access system.

Abstract: Problems of the Invention:

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: An electronic lock module consisting of a series of electronic buttons used for entering a lock combination; LEDs for monitoring the status; a piezo-buzzer to provide audio feedback; a microcontroller circuit to process the input; a locking mechanism in the form of a combination cam and latching solenoid to actuate the mechanical interface which actually unlocks the lock; other components such as battery power and miscelaneous hardware round up the main parts. By pressing the buttons in a certain sequence, a code is sent to the microcontroller circuit which interprets it as valid or not in order to trigger or not the unlocking process. The mechanical interface is designed to be compatible with the ILCO mechanical locks so as to replace their current mechanical locking means. Of course, this present invention can be combined with newly created mechanical components so that this present invention can be used both as a retrofit or as a complete standalone lock.

Abstract: A remote control lock structure. The lock structure includes a receiving box, a locking member, a transmission mechanism, an electric circuit element and a cover. The locking member is placed in the receiving space aligned with a screw hole of a positioning block with a round hole on the receiving box. An axle rod is extended into and out of the round hole, and one end of the axle rod is connected to a main gearing wheel of the transmission mechanism. The main gearing wheel is connected at its lateral sides with the two power transmission wheels, and two power motors are connected with the electric circuit element which provides electric power to activate one of the power motors, thereby one of the two power transmission wheels and the main gearing wheel are driven to rotate. The axle rod further drives the locking rod to rotate to make the latching rod on the front end of the locking rod extend out and retract in between the screw hole and the round hole.

Abstract: An electric door lock includes a deadbolt, a deadbolt operating spindle, a door handle, and a coupling mechanism. The spindle is coupled to the deadbolt and is capable of driving movement of the deadbolt between locking and unlocking positions. The coupling mechanism includes an engaging member, a push unit, and an electric driving motor unit. The engaging member is coupled co-rotatably to the spindle and is axially movable relative to the spindle from a first axial position, where the engaging member can be disengaged from the door handle, to a second axial position, where the engaging member engages the door handle such that rotation of the door handle results in corresponding rotation of the spindle. The push unit is driven by the motor unit so as to move the engaging member from the first axial position to the second axial position.

Abstract: The present invention relates to a locking doorknob which recognizes a fingerprint, in which the detecting sensor of a fingerprint is installed on the spot of the doorknob that a thumb or other fingers are placed naturally as the door is being opened. The locking doorknob is an electro-mechanical device which can be powered by a remote electrical power system, specifically by electromagnetic induction through the door latch and strike plate. During operation, as soon as a user grasps the doorknob, a fingerprint is measured and searched, and if the fingerprint corresponds to a fingerprint previously input, the door is unlocked and the doorknob can be turned to open the door. In this way, fingerprint recognition and opening of the door are performed at the same time.

Abstract: A locking device includes a housing, a base, an electromagnetic sensor, a locking hook, a locking mechanism having a locking bolt and a linking member, and a key having a first end formed with a mechanical unlocking portion and a second end formed with an electromagnetic unlocking portion. Thus, the locking device can be opened by the mechanical unlocking portion of the key and the electromagnetic unlocking portion of the key, thereby enhancing the versatility of the locking device.

Abstract: An electric door lock includes a deadbolt, a deadbolt operating spindle, a door handle, and a coupling mechanism. The spindle is coupled to the deadbolt and is capable of driving movement of the deadbolt between locking and unlocking positions. The coupling mechanism includes an engaging member, a push unit, and an electric driving motor unit. The engaging member is coupled co-rotatably to the spindle and is axially movable relative to the spindle from a first axial position, where the engaging member can be disengaged from the door handle, to a second axial position, where the engaging member engages the door handle such that rotation of the door handle results in corresponding rotation of the spindle. The push unit is driven by the motor unit so as to move the engaging member from the first axial position to the second axial position.

Abstract: A latch assembly having at least one control element having a first path of motion in which a ratchet is moved to an unlatched position and a second path of motion in which the ratchet is not so moved, the path of motion taken by the control element dependent upon whether an engagement element is engaged with the control element or disengaged therefrom. Preferably, the control element moves the ratchet by contact with a pawl which itself can be engaged with the ratchet. In a preferred embodiment of the present invention, the control element can be partially or fully actuated through its second path of motion while still being engagable with its engagement element. If already partially or fully actuated through its second path of motion, the engagement element is preferably movable into contact with the control element and can move the control element to its first path of motion.

Abstract: The system for monitoring and dispensing medical items which are dispensed for administration to patients includes a data terminal (76, 338) which is connected through a network (82, 328) to at least one remote computer (84, 324) having a processor and a data store. The system also includes a reading device (348) which is connected to the network. A user of the data terminal or the reading device is enabled to select a patient for whom medical items will be used, and responsive to a request to dispense items the requested items are dispensed from dispensing devices (96, 100, 344, 346, 450, 527) connected to the data terminal. A report generating device (384) generates reports (388) which include machine readable indicia corresponding to patients and/or medical items. Users may select patients and dispense medications by reading the indicia from the reports using the reading device.

Abstract: Vending machines are provided having a door and a cabinet having an interior region for storing and distributing objects, such as canned or bottled beverages. Several vending machines locks are provided for locking the door to the cabinet to prevent unauthorized access to the interior region of the cabinet.

Abstract: A mechanism that prevents premature disengagement of a component from a computer system is provided. Through a graphical user interface, the user signals to logic associated with the computer system to ready a component for removal from the computer system chassis. A trigger recessed in a handle is depressed to mechanically free the handle to pivot from the engaged position outward. The trigger activates a lock, which is coupled to logic associated with the computer system, which is capable of deactivating the lock. The lock prevents disengagement of the component from the computer system by preventing a handle arm, to which the handle is attached, from pivoting outward. When the lock is deactivated, the handle arm is actually free to pivot. When pivoting, the handle arm engages a hub, which rotates as the handle arm pivots. The hub is coupled to a first lever arm which moves and pivots a first engagement member.

Abstract: A door lock with a clutch having a cam-styled axle sleeve comprises mainly of an outer lock part and an inner lock part mutually oppositely connected and respectively mounted on the outside and inside surfaces of a door panel, the door panel is mounted therein with a dead bolt and a spring loaded with latch bolt linked up with a rotation axle of the inner lock part, the housings of the outer and the inner lock parts are provided each with a handle to rotate their rotation axles. The rotation axle of the inner lock part has on one end thereof a second rotation axle, the rotation axle of the outer lock part has thereon the cam-styled axle sleeve. By providing a control device and a rotating ring, positioning or forward moving of the cam-styled axle sleeve to connect with the second rotation axle can be controlled, so that the door can be opened or locked by rotating the handles no matter inside or outside a house.

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: 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: The door lock with a clutch having a cam-styled axle sleeve comprises mainly of an outer lock part and an inner lock part, both the housings of the outer and the inner lock parts are provided with a handle to rotate the internal rotation axle thereof. The rotation axle of the outer lock part is provided thereon with the cam-styled axle sleeve; the rotation axle of the inner lock part is further connected with a second rotation axle. The axle sleeve of the outer lock part is controlled for positioning and moving by a control device. When the axle sleeve is positioned, the rotation axle of the outer lock part and the second rotation axle of the inner one are separated.

Abstract: A latch assembly having at least one control element having one path of motion in which a ratchet is moved to an unlatched position and another path of motion in which the ratchet is not so moved, the path of motion taken by the control element dependent upon whether an engagement element is engaged with the control element or disengaged therefrom. Preferably, the control element moves the ratchet by contact with a pawl which itself can be engaged with the ratchet. In a preferred embodiment of the present invention, two or more unlatching inputs are capable of unlatching the latch assembly. However, two or more of these inputs are in series rather than in parallel so that the number of paths ending at the element or device holding the latch in its latched state is preferably fewer than the number of unlatching inputs to the latch assembly.

Abstract: A latch assembly having at least one control element having one path of motion in which a ratchet is moved to an unlatched position and another path of motion in which the ratchet is not so moved, the path of motion taken by the control element dependent upon whether an engagement element is engaged with the control element or disengaged therefrom. Preferably, the control element moves the ratchet by contact with a pawl which itself can be engaged with the ratchet. In a preferred embodiment of the present invention, two or more unlatching inputs are capable of unlatching the latch assembly. However, two or more of these inputs are in series rather than in parallel so that the number of paths ending at the element or device holding the latch in its latched state is preferably fewer than the number of unlatching inputs to the latch assembly.

Abstract: A cylinder lock for use in a door lock, comprising an outer plug, an inner plug, a rotary cam adapted to move a deadbolt of the door lock, and a clutch adapted to engage for rotation the outer plug to the rotary cam. The cylinder lock further comprises an electronic blocking device (EBD) and a drive means adapted to actuate the clutch upon an unblocking command from the EBD generated upon receiving therein an unblocking signal emitted from the outer side of the door, thereby enabling moving the deadbolt by rotation of the outer plug. The cylinder lock comprises an inner handle attached thereto at the inner side of the door, the EBD and the drive means being entirely accommodated within the inner handle. The signal is emitted by an electronic key or panel and may be a mechanical vibration signal, a light signal, or a radio signal.

Abstract: A door lock with a clutch having a cam-styled axle sleeve comprises mainly of an outer lock part and an inner lock part mutually oppositely connected and respectively mounted on the outside and inside surfaces of a door panel, the door panel is mounted therein with a dead bolt and a spring loaded with latch bolt linked up with a rotation axle of the inner lock part, the housings of the outer and the inner lock parts are provided each with a handle to rotate their rotation axles. The rotation axle of the inner lock part has on one end thereof a second rotation axle, the rotation axle of the outer lock part has thereon the cam-styled axle sleeve. By providing a control device and a rotating ring, positioning or forward moving of the cam-styled axle sleeve to connect with the second rotation axle can be controlled, so that the door can be opened or locked by rotating the handles no matter inside or outside a house.

Abstract: The present invention relates to an intelligent lock that can set a key code by itself, and to a key which can be used for many locks. The present invention also related a setting tool. Wherein the key includes a housing (1), a battery (2), a head (5), a group of contacts (4) provided on the head (5) and storing means (6). The contacts for power supply and data transmission are connected to the two ends of the battery through the wires respectively, the storing means is a non-volatile memory, and a special key code is stored in the memory. The present invention aims at providing an intelligent lock system that can easily set or cancel a key code by itself, and in which only one key can replace many keys, even all kinds of keys. Moreover, the cost is low and people can use it easily.

Abstract: Vending machines are provided having a door and a cabinet having an interior region for storing and distributing objects, such as canned or bottled beverages. Several vending machines locks are provided for locking the door to the cabinet to prevent unauthorized access to the interior region of the cabinet.

Abstract: A quick-return electro-mechanical actuator (20) broadly includes a cocking solenoid (21) and a holding solenoid (22). Each of the solenoids has an armature (24, 31) and a rod (26, 33). The rods are adapted to contact one another when the actuator is energized. However, after the second rod has been moved to its extended position, the cocking coil is de-energized.

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 remote-controlled door lock has a case body provided with a battery base, a circuit board and a braking device therein. A latch-bolt assembly has a through hole and a slide slot extending from the through hole and having a width smaller than a retaining member. When the circuit board receives a locking sign from a remote controller, it actuates a motor of the braking device to turn a driving gear to rotate a gear rack of a slide block to move a retaining member upwards to be engaged with the through hole without moving into the slide slot to restrict the latch-bolt assembly in a locked position, whereby even though dead bolts of a lock base are unlocked, the door lock cannot be completely unlocked without using the remote controller to actuate the braking device to relieve the latch-bolt assembly from being locked, thus achieving a best effect of anti-theft.

Abstract: A central locking drive (10) serves for the actuation of various locking functions of a door lock, especially in motor vehicles' and has two drive members (18, 20, 22, 24), which are each adjustable between an inoperative position and an activated position. In order to be able to actuate additional locking functions' such as child safety for example, automatically, an additional drive member or expensive detection of intermediate positions of the two drive members has hitherto been necessary. In order to avoid this expense there is provided an operating element (26), which is moveable between a neutral position and at least one operating position, the attainment of a particular operating position of the operating element (26) being dependent upon the order in which the two drive members (18, 22) are activated. The operating element is displaced, for example, by interacting cam elements on the operating element (26) and the drive members.