Abstract: A superlock assembly includes a motor having a pinion mounted on its output shaft and meshed to an output gear. A blocking arm is secured to the output gear. To engage the superlock assembly when the arm of the locking actuator is extended, the motor is powered to move the blocking arm into the path of the retractable arm. In this position, the arm cannot be retracted either through manual force or electric operation of the actuator, thereby preventing a door latch from being unlocked.

Abstract: A power actuator used in combination with a motor-vehicle door latch movable between a locked and unlocked position has a housing, a reversible electric motor in the housing having a rotatable output shaft defining an axis, and an input gear on the shaft. A threaded output spindle spaced from the shaft in the housing carries an output gear out of mesh and out of engagement with the input gear. A nut is threaded on the spindle. An actuating element couples the nut with the latch to switch it between its positions. A support pivotal in the housing about the axis carries a pair of coupling gears in mesh with and flanking the input gear. The support is rockable about the axis from a central position in which neither of the coupling gears meshes with the output gear into a pair of end positions in each of which a respective one of the coupling gears meshes with the output gear and couples same to the input gear.

Abstract: A motor-vehicle door latch has inside and outside locking elements and an actuator having an electric motor having a threaded output spindle and a drive nut threaded directly on the spindle and displaceable by the motor between unlocked, locked, and antitheft positions. An inside lever assembly includes a first inside lever pivoted on the housing and connected directly to the inside locking element for displacement jointly with the inside locking element between locked and unlocked positions and a second inside lever pivoted on the first inside lever and coupled to the actuator drive nut for pivotal displacement jointly therewith between unlocked, locked, and antitheft positions. A spring braced between the first and second levers urges abutments on them into engagement with each other so that when the abutments are spaced apart the spring is loaded.

Abstract: A door lock actuator having unlock, lock and superlock modes includes a rotary input member that positions a pivotally mounted output lever in an unlock position, a lock position or a superlock position. The door lock actuator also includes a pivotally mounted superlock lever that has a bypass position and a block position. The rotary input member maintains the superlock lever in the bypass position when the actuator is changed between lock and unlock modes so that the output lever can be moved back and forth between the locked and unlocked positions and moves the superlock lever from the bypass position to the block position when the actuator is changed to a superlock mode so that the superlock lever is moved to the block position to prevent the output lever being moved to the unlock position.

Abstract: A display cabinet for storing and displaying merchandise for sale to consumers is provided with one or more doors, each door being locked by a locking mechanism that can be released by a signal from a remotely located, hand-held RF transmitter operated by a store clerk or cashier. Visual and audible alarms are provided for alerting store personnel to forcible entry into the cabinet and for warning store personnel when the cabinet doors have been open for a time period in excess of a predetermined time period.

Abstract: An arrangement for a motor vehicle with a central locking system and an anti-theft alarm system is controlled by a control device which both systems have in common and which monitors the operating condition of the systems. For this purpose, the locked condition and the unlocked condition of all locks or doors of the motor vehicle is monitored by additional switching contacts. A differentiation is made between at least three operating conditions which are indicated by visually distinguishable flashing signals output by electro-optical indicating elements in the door locking buttons by visually distinguishable flashing signals.

Abstract: An object of this invention is to provide a door unlocking device adapted unlock a door by transmitting a signal in the air through a signal transmitter, which can unlock the door even when the power source of the signal transmitter, namely, the battery has consumed up. With a door unlocking device, upon insertion of an ignition key into the rotor of a key cylinder, a shutter is opened to operate a shutter switch. Under this condition, the rotor is turned in opposite directions from the neutral position according to a predetermined rotor turning pattern. The rotor turning pattern is discriminated by a rotor-turning-pattern discriminating circuit. Ensuring that the rotor turning pattern is the one predetermined for unlocking the door, the rotor-turning-pattern discriminating circuit activates an electric operating mechanism to cause a lock mechanism to unlock the door.

Abstract: A central interlocking system for a motor vehicle performs in a normal operation all opening and closing functions. A vehicle provided with the system can be opened and locked without the operation of door closing motors. The outer and inner handles can be selectively blocked individually and jointly by a motor operated control member having two parallel control discs which cooperate with two locking levers. The control member can be released for opening of the door also in a purely mechanical way by turning a door lock keybolt with a key. The locking system has a simple construction and locking motors operating without loads.

Abstract: A tailgate handle assembly in a housing including a flush-mounted handle and an adjacent key cylinder. The housing is spaced apart from a tailgate latch mechanism. A laterally extending lever is slidably actuated on the housing from a locked mode to an unlocked mode manually by rotation of the key cylinder, or electrically via a power actuator, and then pivoted by manual lift-pulling on the handle, to thereby lift a latch rod extending between the lever and the latch mechanism to actuate the latter. An electrical limit switch is mounted on the handle assembly, adapted to being actuated by one slidable movement of the lever to unlock the latch of an upwardly pivotable tailgate window.

Abstract: A motorcycle has an article storage box equipped with a lid member which is locked and unlocked and with a fuel tank having a gasoline injection port which is closed or opened by a lid member. The locking and unlocking of the lid members of the storage box and the fuel tank injection port are controlled by an electric circuit system. The electric circuit system includes a battery, a main switch unit operatively connected to the battery, a solenoid switch connected to the main switch unit for carrying out an on-off operation to the lid locking and unlocking mechanism for the fuel tank injection port lid, and a solenoid switch connected to the main switch unit for carrying out an on-off operation to the lid locking and unlocking mechanism for the storage box.

Abstract: The invention relates to a device for monitoring the closure of the opening points of a motor vehicle, in which each opening point is equipped with a closure contact which is connected to a central unit. It is characterized in that the central unit is connected to all the opening points by a single common line (8) with two conductors (31, 32), in that the central unit comprises at least one periodic-signal generator (28) connected to the said two conductors, in that each opening point comprises a passive receiver circuit tuned to the frequency of the periodic signal supplied by the said generator (28) of the central unit, the said passive circuit being connected in series with the closure contact of the said opening point, and in that the said device comprises, furthermore, indicia of a closure fault in response to the variations of the signal generated by the generator in response to the actuation of the corresponding closure contact.

Abstract: The invention relates to a device for the centrallized control of the opening points of a motor vehicle, in which the opening points have electrical actuators, including two locking states, and comprising at least one electric motor, and some opening points have a mechanically controlled device with a lock key sending commands to a central control unit which also receives commands coming particularly from the ignition key and/or from a remote-control set and from an anti-attack button.

Abstract: A locking device for a flap or door of a motor vehicle contains, in addition to the conventional flap or door lock which is unlockable and lockable by a lock cylinder, an additional bolt acting in parallel with the lock on a closing member of the same flap or door. The bolt is prestressed by a spring in the direction of its securing position and is movable mechanically in the direction of its release position by the lock cylinder via a linkage with a free-play connection.

Abstract: A device is disclosed for sensing the rotary angle of a key-actuated lock system which contains a lock cylinder of a door or flap of a vehicle which is rotatable by way of a key. A follower is coupled to the lock cylinder via a driving coupling allowing a free-wheel rotational play and to a protection element of a lock and is rotatably mounted in a door interior. A switch-actuating part is rotationally coupled to the lock cylinder virtually free of play and is rotatable synchronously with the lock cylinder and a control switch which is switchable by the switch-actuating part at a specific rotary angle of the part and directly spatially adjacent thereto. The switch-actuating part is mounted behind the follower in relation to the lock cylinder on a carrier facing the interior of the vehicle and is fixed to the door or flap. A control switch is retained at least indirectly on the same carrier, and at least these two parts are sealed off relative to the door interior.

Abstract: A motor vehicle including a central locking system as well as an anti-theft alarm system is controlled by a control unit common to both systems. The locked state and the unlocked state of all locks or doors of the motor vehicle are monitored by means of additional switching contacts and an activating of the alarm system is prevented if at least one of the locks is not in the locked state. An activating of the alarm ready state of the alarm system is nevertheless possible by operating a key-operated lock a certain number of times within a specific limited time period.

Abstract: An electric driven type lock device used to a car trunk lid has a striker, a latch, and a ratchet for preventing the latch from reverse-rotating. When the striker reaches its position confronting a U-shaped groove or notch formed in the latch, a motor makes the pressing link rotate forcibly in a closed-lid direction. An electric-driven-condition relief link is connected to the ratchet. When the motor reversely rotates, the electric-driven-condition relief link makes the ratchet leave from the latch. Further, the lock device has a manual relief lever which to lever the pressing link and the ratchet are connected. When the manual relief lever is operated, the pressing link is left from a rotation track of the latch, as well as the ratchet is left from the latch.

Abstract: A process and device for controlling a motor vehicle central locking system that has multiple station operation from the driver's door and from the trunk lid. A central locking of the door locks of the motor vehicle is avoided when mechanically securing the lock of the trunk lid against opening from the outside without a key in the unlocked state. This is done by switch-controlled suppression of the effect of the locking control signal normally generated when locking.

Abstract: A system for the central locking of several closure points of an automotive vehicle with a remotely controlled setting member at each closure point has a central control circuit, as well as activating switches. Each switch has a neutral central position between "closed" and "open" positions at one or more closure points, by which the control circuit can be controlled for movement of all setting members in the same direction. A switch sequence of the invention provides for individual opening of a closure point by a process wherein the actuating switch must be brought into the "closed" position and then immediately into the "open" position.

Abstract: A power door-lock actuator has a housing adjacent the lock, a reversible electric motor in the housing having an output shaft extending along a motor axis, and an input gear fixed on the output shaft and rotatable thereby about the motor axis. A threaded spindle extending in the housing along a spindle axis adjacent the motor axis carries an output gear and a nut threaded on the spindle is movable along the spindle axis on rotation of the spindle between a pair of axially offset positions. A link connected between the nut and the lock can move the lock between its locked and unlocked positions on displacement of the nut between its end positions. A manual actuator, for instance an inside door-lock button, is coupled to the nut for manually displacing the nut between its end positions. A rocker pivotal about the shaft axia at the input gear carries a pair of connecting gears flanking and meshing with the input gear.

Abstract: A vehicle door lock device has a synthetic resin made body and a back plate attached on the rear side of the body. A lock lever is journalled between the back plate and the body in order to change-over the lock device between its locked condition and unlocked condition. A plastic made actuator box containing a power source for powerfully changing-over the lock lever is placed below the body. A switch box is formed at a rear side of the box and a switch body is contained in the switch box. A rotation shaft of the switch body protrudes rearward through the switch box and a switch arm is secured to the protruded portion of the rotation shaft. At the overlap position of the connecting lever and the lock lever, the connecting lever is installed rotatably, one end of the lever being connected to the switch arm and another end of it being connected to the key cylinder of a door or the lock lever.

Abstract: A locking device for a door lock in a motor vehicle has a locking position which can be selected, even by remote actuation, by an outer security element and in which the influence of outer and inner lock handles and of inner security elements on this locking position is prevented as a result of an interruption of the force flux at disengageable couplings.

Abstract: A vehicle door lock system includes, interior and exterior handle assembies that are accessible, respectively, from interior and exterior sides of a vehicle door on which the door lock system is mounted. The door lock system includes a rotary latch that is configured to releasably engage a door-frame-mounted striker to "latch" and "unlatch" the door. The door is "locked" and "unlocked" by selectively enabling and disabling driving connections between the handle assemblies and separate release arms of the rotary latch. More specifically, locking and unlocking of the door are effected either by operating an exterior key cylinder, or by operating an interior sill button.

Abstract: A motor-vehicle door latch for use on a vehicle door having a handle and a locking element has a housing, a latch fork pivotal on the housing and engageable in a locking position with a door bolt to retain same and lock the door, an operating lever pivoted on the housing and connected to the handle, a locking lever pivoted on the housing and connected to the respective locking element, and an actuating lever operatively engageable with the fork to release same from the locking position. A link coupled to the locking lever is displaceable thereby between a position coupling the operating lever to the actuating lever for displacement of the fork out of the locking position by actuation of the operating lever and a position decoupling the operating lever from the actuating lever. Thus in the decoupling position actuation of the operating lever will not unlock the door.

Abstract: A motor-vehicle latch has an actuating lever displaceable between a position in which a respective door of the vehicle is locked and a position in which the respective door is unlocked. A locking knob connected to the lever is accessible from inside the vehicle to displace the lever between its positions. The actuator has a housing mounted directly on the door latch and formed with at least one longitudinally directed abutment face, a motor in the housing, a nut longitudinally displaceable in the housing by the motor between unlocked, locked, and antitheft positions, and a slide in the housing movable by the nut between locked and unlocked positions and formed with a recess receiving a portion projecting from the lever. At least one flexible arm extends longitudinally from the slide and has a head formed with a face directed longitudinally opposite the abutment face of the housing.

Abstract: A vehicle door lock system including a power lock actuator for locking and unlocking a door by moving a lock lever, is further provided with a childproof and theftproof lock actuator for moving a block lever between a block position to prevent the swing motion of the lock lever, and an unblock position to allow the lock lever's swing motion.

Abstract: The invention relates to a vehicle locking device having a mechanical rotary connection between a cylinder core of a lock cylinder and a lever system of an associated lock and comprises a driver coupling having two sleeve bodies which are mounted coaxially to one another and, in their installed position, are positively coupled to one another with the interposition of a rotary lost motion freewheeling connection. The rotary movement of the sleeve body drivable by the cylinder core, via a rotary connection element, is sensed for the purpose of controlling an additional locking function superposed on the rotation of the cylinder core. The other sleeve body is dynamically coupled to a securing element of the lever system of the lock. In order to achieve a substantial freedom in the arrangement of the control elements, the two sleeve bodies are rotatably connected to one another and are independently rotatably mounted on a support, spaced from the lock cylinder.

Abstract: The car locking device of the present invention has a latch to be engaged with a striker, a ratchet for preventing the reversal of said latch, an opening lever for disengaging said ratchet from said latch, a locking lever for changing over said intermediate lever and said opening lever between an engaged state (unlocked state) or a disengaged state (locked state), and the first and second change-over levers. The key device of a door is connected to said first change-over lever, and said locking lever is connected to said second change-over lever. Said first and second change-over levers are rotationally moved together by key operation between the locking position and the unlocking position, and in the case of the excessive turn beyond the unlocking position, the first change-over lever only is rotationally moved, with said second change-over lever and said lock lever kept stationary.

Abstract: The disclosure involves a lock and control assembly which can be either manually operated after insertion of a key in a lock cylinder or electrically energized by a switch from a remote location so that it can be thereafter manually manipulated without insertion of the key in the lock cylinder. The lock and control assembly also includes a mechanical override means to enable it to be actuated to its locked position, but not its unlocked position, in the event of an electrical power failure or a failure in the energizable means.

Abstract: Power actuated dead-locking unit for a centrally controlled vehicle door locking system has a lock actuating formation (20) which is shifted between locked and unlocked positions by a motor driven rotary operating cam (16), the latter holding the actuating formation in a dead-locked condition at a first position and allowing free movement of the formation between locked and unlocked conditions at a second position to which it is resiliently urged. A motor driven dead-locking catch (28) is movable between an engaged position at which it coacts with a formation (26) of the operating cam with the latter at its first position for dead-locking without having to keep the motor driving the operating cam continuously energized, and a disengaged position leaving the operating cam free.

Abstract: A process and apparatus for influencing a central locking system (CLS) in a motor vehicle wherein a separate release of a driver-door closure is provided and wherein, without special preselection measures in the vehicle interior, a vehicle user can, during each release at the locking station assigned to this closure, decide whether he wants to release only this one closure separately, by actuating the corresponding locking station once, or whether he wants to release the closures of the vehicle centrally, by actuating this locking station twice.

Abstract: A switch device in a car lock device includes a lock lever disposed between a body and a back plate, rotating with a center shaft in a longitudinal direction being its axis of rotation and switching the lock device to a lock state and an unlock state, and a switch member fitted to the outer surface of the back plate, having a rotary shaft on the same axis as the center shaft, connected electrically to the lock devices of other doors and sending switching signals of the lock state and unlock state to the other locking devices. A switch arm which rotates between the lock position and the unlock position and is equipped at one of its ends with an engagement hole is fixed to the rotary shaft. An arcuate hole having its center on the center shaft is formed at one of the ends of the lock lever. One of the ends of the a rod whose other end is interconnected to a key cylinder is meshed with the arcuate hole of the lock lever and with the engagement hole of the switch arm.

Abstract: A remote control station and integrally installed electronic control circuit for use with a bolt and lock mechanism is set forth. In the lock, an air supply connected with first and second solenoid valves is incorporated and has a rod which extends to manipulate the bolt; bolt position is indicated by a switch means determining movement of the bolt to the deadlock position, and a door position switch is also incorporated. Various control signals are formed and are interlocked so that remote control or key switch control of the lock mechanism is obtained. It is implemented by providing control signals to the solenoid valves. They cause the bolt to move between the deadbolt and retracted positions, or to the intermediate slamlock position.

Abstract: An improved central lock control system adapted for automatically locking and unlocking all the four doors by way of operation on the lock knobs mounted on the two front doors, and only permitting to automatically unlock all the four doors by way of operation on the lock knobs mounted on the two rear doors for safety consideration; the present lock control system is characterized in that the motor, used to control the motion of an actuator which enables the lock knobs of the doors to perform the locking and unlocking operation, is able to spin clockwise or counter clockwise to generate an inductive voltage on the lock knob being pulled up to unlock or pushed down to lock the doors; the generated inductive voltage is input into an electronic module for logic comparison so to effect the above cited control operation; whereby the control circuit is simplified to a large extent and the mounting of the present system is made easy; besides, the production cost is effectively lowered as a result of the removal of a

Abstract: A mechanical unlocking arrangement is integrated in an adjusting element for the unlocking and locking of a door- or lid-lock which in addition to a main adjusting drive includes a further power-actuated security-adjusting drive for blocking the adjusting member of the main adjusting drive in the position keeping the lock locked by means of a locking member; the mechanical unlocking arrangement thereby enables a release of the blocked adjusting member without power-assist.

Abstract: Rotating claw or other vehicle door latch assembly has locking mechaism including a crank element (33) rotatable about a first axis (34) between angular positions at which the latch is locked or unlocked, a push-pull linkage (38), e.g. of a door sill button, being connected to a second axis (35) of said element for manual actuation thereof, deadlocking means (31,40) being selectively operable to position the crank element with said axis substantially in line with the direction of movement of the linkage so that the latter cannot be used to effect movement of said element which would unlock the latch.

Abstract: A motor-vehicle door latch for use on a vehicle door having inside and outside handles and inside and outside locking elements has a housing, a latch fork pivotal on the housing and engageable in a locking position with a door bolt to retain same and lock the door, inside and outside operating levers pivoted on the housing and connected to the respective handles, and inside and outside locking levers pivoted on the housing and connected to the respective locking elements. An actuating lever operatively engageable with the fork can release same from the locking position and a link coupled to the locking levers is displaceable thereby between a position coupling the outside operating lever to the actuating lever for displacement of the fork out of the locking position by actuation of the outside operating lever and a position decoupling the outside operating lever from the actuating lever. Thus in the decoupling position actuation of the outside operating lever will not unlock the door.

Abstract: A vehicle door lock system includes interior and exterior handle assemblies that are accessible, respectively, from interior and exterior sides of a vehicle door on which the door lock system is mounted. The system includes a plurality of rotary latches that are configured to releasably engage door-frame-mounted strikers to "latch" and "unlatch" the door, and a latch interconnection linkage for effecting concurrent unlatching of the rotary latches. The door is "locked" and "unlocked" by selectively enabling and disabling at least one driving connection between at least one of the handle assemblies and separate latch release arms that are arranged to operate a selected one of the rotary latches. In preferred practice, locking and unlocking of the door are effected either by operating an exterior key cylinder, or by operating an interior sill button.

Abstract: A door lock/unlock detector for use within a theft prevention device for an automobile includes a door lock cylinder having a key-actuator rotor rotatable between a lock position and an unlock position. A detector plate is mounted upon the key-actuator rotor for rotation therewith. A first detector comprising a reed switch is positioned so as to confront the detector plate when the key-actuator rotor move to the lock position. A second detector comprising a reed switch is positioned so as to confront the detector plate when the key-actuated rotor is moved to unlock position.

Abstract: A locking arrangement is described that is particularly adapted for use on motorcycles having plural storage containers and that includes a key-actuated locking device and latch release operators disposed in a central location and remote from the container latching mechanisms. The locking device is operative in one position to enable release of the latching mechanisms on the respective storage containers by each associate operator and in another position to prevent such enablement.

Abstract: The door-lock system for a motor vehicle has mechanical motor vehicle door locks in all motor vehicle doors and the trunk lid, a mechanical lock cylinder in the motor vehicle door lock of the driver's door and a remotely operable electronic operating mechanism with a transmitter acting as an electronic key, a receiver and decoder as well as a power supply. The motor vehicle door locks in the doors have at least one locked configuration and an additional theft preventative configuration as well as a central lock mechanism drive with control positions for engagement and/or disengagement of the theft preventative configuration. The central lock mechanism drive is operable by the electronic operating mechanism. The decoder and the receiver of the electronic operating mechanism are independent components which are connected only electrically. The receiver is located otside, e.g. in the driver's door, and only operates from the outside by a transmitter.

Abstract: The locking drive for a central locking system of a motor vehicle comprises a support which carries an electric motor, the direction of rotation of which is reversible. Guided for movement on the support are two force-transmitting parts of a gear mechanism which transmits the locking forces, a first force-locking part being adapted to be driven by the electric motor while a second force-locking part can be driven manually, for example by means of a mechanical lock. The second force-transmitting part can be locked at least in one of its extreme positions and relative to the support by means of a locking member. The locking member is controlled via the first force-transmitting part which, for this purpose, is coupled via a dead travel coupling having given clearance to the second force-transmitting part.

Abstract: A control arrangement for a combined central locking and burglar alarm system for motor vehicles is constructed in such a manner that an accidentally tripped false alarm can be deactivated in a single manner by a designated key and a key detection switch associated with a door locking cylinder, so that the activation state of the burglar alarm system is automatically adapted to the existing locking state of the central locking system.

Abstract: There is provided an automatic door lock control device on a vehicle which includes a first switch operable by a driver, a second switch operable by an occupant other than the driver, and an automatic control device. The automatic control device issues a control command for simultaneous operation of the door lock operation mechanisms associated with the driver and the other occupant upon receipt of a signal from the first switch, and issues a control command for operation of the door lock operation mechanism associated with the other occupant upon receipt of a signal from the second switch. The automatic control device is provided with a predominance determination unit which gives priority to the signal from the first switch over the signal from the second switch to avoid conflicting commands to the door lock operation mechanisms.

Abstract: A non-commutated linear motor particularly suitable for use as an electric door lock actuator for an automobile is disclosed. The linear motor may include a series of cup-shaped portions each having a winding appropriately connected to provide the desired travel stroke, in a direction determined by polarity of D.C. power applied to the winding, and power for the linear motor or a segmented armature designed to achieve the same flexibility in motor design and assembly.

Abstract: A motor vehicle door lock is equipped for cooperation with a central locking system able to lock all doors of a vehicle from a single control. The lock also has a pull closed mechanism which is driven by the same motor driving the locking elements in response to a signal from the central locking system. The pull closed mechanism cooperates with a fork latch for bringing the fork latch from a preliminary latching position into a main or final latching position, whereby door slamming for properly closing a vehicle door is not necessary. It is now sufficient if the user closes the door so that the fork latch is in its preliminary latching position since the present invention mechanism will then close the vehicle door completely.

Abstract: An arrangement for locking a cover which can be opened and closed to cover an opening of a vehicle such as a door or luggage lid is disclosed. Means for detecting the presence or absence of an occupant within the vehicle as well as means for detecting the open or closed condition of the cover are provided. When the absence of an occupant is detected and the closed condition of the opening cover is detected, a lock mechanism which blocks an opening movement of the opening cover is locked. In this manner, if an occupant has forgotten to lock a door or doors when getting off his vehicle, the doors are automatically locked, thus reliably preventing a theft or tampering with the vehicle.

Abstract: A centralized door-locking system in a motor vehicle in which all of the doors of the vehicle and a tailgate of the vehicle have lockable latches which can be locked/unlocked electrically using key-operable switches asociated with the lockable latches in the driver's door, front passenger's door and the tailgate of the vehicle. In the system, it is possible to selectively lock/unlock the driver's door and/or the tailgate independently of the remaining doors of the vehicle, thus improving the overall security against unauthorized entry to the vehicle by third persons during usage of the vehicle. This selective locking/unlocking of the driver's door and tailgate may be achieved by using, for example, a key-operable switch in the driver's door having a rotatable key barrel 32 with key slot 160 which is rotatable clockwise or anticlockwise from a central position N to sequential switching positions A and B, or C and D, against an increasing spring bias 162, 164.

Abstract: The latch comprises a keeper (2), a fork member (3) provided with two branches (7, 8) for retaining the keeper (2), a catch (9) movable to a position for locking the fork member (3) on the keeper (2), and a control lever (12) for the catch (9) for unlocking the fork member (3). The lever (12) is connected to an outer or inner opening control (13, 14) and is associated with an electric deactivating circuit comprising switches (25, 26) and an electromechanism so arranged that an attempt to open in an unauthorized manner after the deactivation of the door causes the closure of one of the switches (25, 26) and the supply of current to the electromechanism which automatically releases the lever (12) from the catch (9) and prevents the unlocking of the latch by the catch. In the event of a breakdown of the supply battery, the lever (12) remains coupled to the catch (9) and permits the opening of the door. FIG. 1.

Abstract: A door lock device for automobile, including a manual lock member provided inside of the door for locking and unlocking the door, and a key or laser key for unlocking the door, is so arranged that the engine is made operable only when the door is unlocked with the key or the laser key.

Abstract: Central locking system for vehicle doors includes an electric actuator (13) whose motor (21) drives a snail cam (23) for shifting a lock operating lever (25) between locked and unlocked positions. The lever is held at the respective position with the cam at the extremes of its travel but is free to be operated manually e.g. by a sill button of the associated door, when the cam is at mid travel. A spring (35) is arranged to urge the cam in one direction only from the unlocked extreme to mid travel but does not affect the cam at the locked extreme enabling the door to be dead-locked using the actuator i.e. so that it remains locked until the actuator is operated to shift the cam away from that extreme.