DE4429475A1 - Auxiliary security lock for motor vehicle doors e.g. front and rear doors - Google Patents

Abstract

The vehicle door has a conventional lock (10) with key operation and a separate locking security bolt (2) in a secure and concealed location and driven by a servo drive. The servo drive is operated by a security code system and is not visible from outside the door. A simple servo drive comprises a spindle or a hydraulic/pneumatic drive. The security bolt has a pointed nose and locates in a bolt plate (3) on the door frame. The outside of the bolt has ratchet recesses to secure the bolt positions and is slid axially inside a bored mounting block. The security lock can be fitted to any vehicle door including rear luggage door.

Description

The invention relates to an additional locking device for the doors primarily from motor vehicles etc. (e.g. front and rear Side doors, rear doors or tailgates, trunk hoods, Bonnets etc. etc.).

The invention has the purpose, the doors etc. of motor vehicles etc. to keep it effectively closed against unauthorized opening, if car thieves etc. have the normal door lock etc. in their locking function have already overcome

It is common practice that the so-called. Outer skin securing " of a motor vehicle against opening the doors etc. mechanically only by means of the traditional devices of regular door locks. The alarm system installed in the vehicle from case to case due to construction only acoustically via the vehicle horn and if necessary optically effective via headlights and / or indicators, prevents professional Perpetrators do not try to penetrate the vehicle anyway, rob it or valuable accessories such as the car radio or the radio telephone etc. etc. remove in peace or short-circuit the vehicle and then close steal. In addition, the acoustic alarm system only becomes active when the offender has already caused damage and enters the vehicle; usually when the perpetrator opens the doors (activation of the Alarm system via the door contact switch or by means of ultrasound Vibration fields in the interior etc., etc., pp). An acoustic  Alarm system generally cannot prevent the perpetrator from driving the vehicle opens or that it penetrates into the vehicle. Your intended purpose According to the alarm system to report to the environment (residents, passers-by, etc.) that a break-in on the vehicle is attempted or takes place - or is to prevent the perpetrator from doing what he is doing and to evict. In practice, however, it has been found that this hoped for effect does not take up space at all; the environment shows itself extremely indifferent to a honking vehicle; usually you only feel annoyed by the noise source and take no action Take measure.

It is a structural condition - which is a considerable disadvantage - that the regular door locks can be opened in a simple manner from the outside by means of wire loops, screwdrivers or bent metal strips etc. etc. by unauthorized persons. Or that the door lock can then be opened from the inside by unlocking using the locking button ( 11 ) or the unlocking pawl ( 12 ). Or that the perpetrators obtain duplicate keys or even the original key.

Some vehicle brands have security locks that enable an effective lock lock so that the doors too can no longer be opened from the inside through the broken window; However, this security is no longer given if the perpetrator got a duplicate key (or the original key).

The invention is therefore based on the object, constructive To take precautions to prevent a Unauthorized persons can open the vehicle doors in the first place. With the The solution implemented according to the invention is already the majority of the Robberies from motor vehicles effectively prevented from the outset, because many Offenses are carried out by casual offenders and because they are general it is known how (child) easy the locking devices of automotive  Let the doors open without the corresponding key. For the the manipulator observes neutral viewers of such a process a skilled perpetrator like the normal, authorized opening of a vehicle out.

So the task according to the invention is defined as: The door (s) etc. are still effective against unauthorized opening secure even if the culprit is the obstacle of the normal door lock has already overcome

The object is achieved in that separated from the regular locks ( 10 ) in the vehicle doors etc. ( Fig. 1), another additional (security) lock of the same type as the regular lock is installed, which is not visible from the outside and also cannot be operated from the outside using a key, etc. This (security) lock is only operated e.g. B. pneumatically by air pressure (negative or positive pressure), or by an electro-magnet, or an electric motor etc. (electric motor z. B. in the already well known and practiced for years, as he for the unlocking or locking of the lock mechanism is used in the regular locking system etc. of the central locking system etc. of vehicle doors etc.).

These servomotors set their changing "right-left" - direction of rotation via a worm gear or a rack segment ( 8 ) etc. etc. to a "back and forth movement limited by the distance, which also ver (security) lock - or unlocked.

This property can also be used to push a simple locking bolt ( 2 ) into an anchor plate ( 3 ) instead of the additional (security) lock of conventional design with a complex locking mechanism. This additional locking (safety lock as well as locking bolt) is used for. B. switched on or off in connection with an alarm system. When the alarm system is switched on, the lock mechanism of the security lock closes or the locking bolt ( 2 ) slides into the anchor plate ( 3 ), e.g. B. the "B" pillar ( Fig. 5) or in the "C pillar. When the alarm system is switched off, the locking mechanism opens or the locking bolt pulls back into its starting position in the door ( Fig. 3 + 4) and the door can be opened In this case, the alarm system or the additional locking device is operated via a remote control (by means of a radio signal or infrared light signal etc. etc. pp) - the coding of which is set individually by the vehicle owner can be activated or de-activated.Alternatively and in the event that the remote control system should fail, you may also find it in a hidden location - which is only known to the owner, e.g. in the trunk etc. etc - A manually operated switch is installed, which also serves to generally switch off the system if the vehicle is left to the workshop for inspection or repair, etc., so that the remote control is not handed over to the vehicle which must, with which the possibility of manipulation etc. etc. pp. would be given.

As a further embodiment, the additional locking when leaving the vehicle and locking by means of the regular locks ( 10 ) can initially only be switched to standby without the lock mechanism being actuated or that the locking bolt ( 2 ) during the normal locking process into the Anchor plate ( 3 ) engages (e.g. protection of the mechanism against unnecessary wear). However, at the moment when an attempt is made to open the regular door lock without the standby situation of the additional locking being released (by the authorized driver by disarming), the opening normal locking mechanism triggers the function of the additional locking system and this or the bolt of the locking system immediately snaps into the anchor plate and blocks the door (or via a connected central locking unit, all (security) locks or all bolts in all doors are actuated.

In the normal installation variant (if there is no acoustically effective alarm system installed in the vehicle, where its alarm center functions as a control center), it is sufficient if the additional safety locks or the additional electrical locking are separated for themselves using a remote control already mentioned is operated. Possibly. it can also be coupled with the normal central locking system of the regular door locks. As soon as all doors are locked using the remote control via the central locking system, the locking mechanism of the security locks is also activated or the additional locking bolt ( 2 ) is pushed into the anchor plate ( 3 ) on the doors equipped in this way ( etc.) The doors can then only be opened again by pressing the remote control; when using only the door key (or manipulation of the locking button ( 11 ) of the regular door locks) only the normal locking device opens; but not the additional electrical locking. The additional lock can only be opened again by pressing the remote control.

The advantages achievable according to the invention are that a unauthorized person cannot open the vehicle doors; also not from the inside, should it e.g. B. break the window around from the outside to grip the locking mechanism on the inside of the door. Around The perpetrator would have to get physically into the vehicle now penetrate through a broken window - and open the vehicle leave this way again. In practice, this is with considerable circumstances (and acrobatic skill) as well as a latent Risk of injury - and especially not in the short time, in which otherwise vehicles have to be opened and robbed etc. - perform; in particular, however, this practice is with one unusually high attention value. It doesn't belong yet to the everyday appearance that someone (head or leg ahead?) "his" vehicle through a window to be smashed beforehand - under acoustic accompaniment of a sounding alarm system - climbs and also leaves again. Here a thief has little in the day and in busy surroundings Opportunities to go undetected.

With this application of the invention, the vehicle is so effective against Unauthorized persons locked and locked that even using the matching vehicle key through a vehicle's doors unauthorized person cannot be opened.  

This additional locking system is used in particular with a burglar-resistant or double glazing, which in today's technically high level of automobiles at least as Equipment alternative of high-priced vehicles can be ordered, the robbery and theft of vehicles complicate or completely prevent. The combination of the system in is equally effective Connection to an acoustic alarm system that is already on the Break-in attempt (e.g. by infra-sound etc. etc.), e.g. B. by the Noise when attempting to open the regular lock. . . it doesn't matter whether he uses the right key or a Manipulation applied!). Seen in this way, it is so Equipped vehicle the perpetrator much more massive and longer Opposition to resistance, so that the culprit usually his project (Which is quick and unobtrusive and for him without great risk should take place) with this vehicle to give up to look for a less fully secured vehicle for his project.

It is also beneficial that even with one of the offenders Possibly procured duplicate key - or even with the possibly stolen Original key - the vehicle cannot be opened. This would have to be from First offender is the standby switching state of the additional locking de-activated, but what he does the appropriately coded remote control would need. If only he separated the regular door locks actuated, he can open these locks; lock at the same time but immediately the safety locks or the bolts. . . (if these are not already locked from the start) and the Acoustic alarm system is triggered (and here it is advantageous that the alarm for a justified reason - precisely because of the unauthorized one Manipulation at the door lock - is given, so that alarm systems with hypersensitive sensors with frequent false alarms can be dispensed with!), where the perpetrator still failed to open the vehicle Otherwise it is the rule that the acoustic / visual alarm first is triggered after opening the door; then the vehicle is already open and the thief can still valuable things from the Steal vehicle. . . there is usually so much time there As you know, the horns alone do not have any target-oriented activities Passers-by or residents.  

It is also particularly advantageous that this is effective, access securing option largely denying the vehicle can be retrofitted in every vehicle at very low cost can, because here z. B. also normal large series parts (e.g. servomotors of normal central locking system) can be used.

In the further embodiment, the additional locking system is connected via a disconnecting relay ( 9 ) so that it cannot be activated as long as the ignition is switched on. This prevents the system from being accidentally actuated by a short circuit or by external radio impulses (in the case of radio-controlled remote control systems) and the occupants (e.g. in the event of an accident) not being able to leave the vehicle because they are being driven by The remote control switch (usually a small transmitter, which is often designed as a key fob) does not act shock or horror of the accident situation - (but should not be connected to the vehicle key in the event of loss) - actuate.

So z. B. such a fuse can be installed, the additional electrical locking from a certain temperature (e.g. at a vehicle fire) so blocked in the idle state that they are at all is not to sleep. Or - in the event that it was closed - that it then forcibly opens. This positive opening function can additionally also by a so-called "G" switch done, the one certain acceleration (positive as well as negative acceleration) is active in impact situations etc.

Fig. 1 shows a vehicle door in a cutaway view with a schematically illustrated series locking system ( 10 ), its locking button ( 11 ) and opening pawl ( 12 ). The (safety) lock or additional locking device ( 1 , 2 , 7 , 8 ) with the anchor plate ( 3 ) mounted in the "B-pillar" is positioned underneath. Position 9 also shows the electrical isolating relay and the indicated wiring to the drive ( 7, 8 ) of the additional lock.

Fig. 2 shows the "B" pillar (possibly also "C" pillar in a 2-door vehicle) with the anchor plate ( 3 ) installed.

Fig. 3 shows the alternative additional locking with housing body ( 1 ), the locking bolt ( 2 ) emerging from the right in its "open position. The anchor plate ( 3 ) into which the locking bolt is inserted can be seen. Position ( 7 ) is the drive mechanism (pneumatic system by means of negative or positive pressure, electromagnet or electric motor etc. etc.), position ( 8 ) indicates the housing body of the translation mechanism (e.g. Compression chamber for overpressure or underpressure, housing for worm gear, housing for rack etc. etc.).

Position ( 6 ) also shows the push rod that connects the drive mechanism ( 8 ) and locking bolt ( 2 ).

Fig. 4 shows the housing body ( 1 ) cut open, with a recognizable locking bolt ( 2 ).

Fig. 5 is shown analogously to Fig. 3; here, however, in the "closed" position (bolt ( 2 ) is inserted into the anchor plate ( 3 )).

Fig. 6 shows the anchor plate ( 3 ) in section, with the recognizable tapered opening ( 5 ) into which the locking bolt is inserted with a precise fit.

Position 7 shows the housing body cut open with a recognizable locking for the positions "open and close", in the form of the spring-pressure-supported ball ( 1 b) and the depressions ( 2 a) in the bolt ( 2 ).

Fig. 8 shows the housing body ( 1 ) cut open (shown enlarged as in Fig. 7) with the device of the spring-loaded locking ball ( 1 b) and the bolt ( 2 ) and the indentations ( 2 a) therein for locking the Bullet.

Claims (9)

1. Motor vehicle door ( Fig. 1), characterized in that the door (or engine or trunk hood etc. etc.) for the purpose of preventing or to make it difficult to break open with 2 separate, independently functioning locking devices (door Locks of conventional design etc. etc.) is secured, of which the regular lock, as usual, is mainly operated from the outside using a key on the door ( 10 ) - and the additional (security) lock via remote control using radio, infrared etc. etc. ., electrically or pneumatically etc. is operated. 2. Motor vehicle door according to claim 1, characterized, that the additional - electrically remote controlled - (security) lock none externally visible and / or usable Has locking device. 3. Motor vehicle door according to claim 1 and 2, characterized in that a simpler locking device is used as an alternative to the (security) lock of conventional design with complex locking mechanism in a simpler embodiment; Mainly made of a suitably shaped housing body ( 1 ) made of metal (steel, iron etc.), with a locking bolt ( 2 ) (e.g. round, oval) integrated in a guide device ( 1 a) and movable in its longitudinal direction , flat, triangular, quadrangular or polygonal, etc.) is combined, which is coupled to a drive device ( 7 , 8 ) via a push rod ( 6 ), and an anchor plate ( 3 ) which holds the bolt tip ( 4 ) with a precise fit. 4. Motor vehicle door according to claim 1 to 3, characterized in that the tumbler of the (security) lock or the locking bolt ( 2 ) by means of the push rod etc. ( 6 ) via a gear rod or via a threaded rod etc. or via a worm thread ( 8 ) etc. etc., by means of an electric drive (electro-magnet, electric motor) ( 7 ) etc. etc., is set into an axial movement, so that the locking bolt is moved forward or backward depending on the polarity of the power source. 5. Motor vehicle door according to claim 1 to 4, characterized in that the locking of the (safety) lock or the locking bolt ( 2 ) by means of the push rod etc. ( 6 ) via a pressure or vacuum chamber ( 7 ) and a piston rod moving in a cylinder ( 7 ) is moved pneumatically by means of negative or positive pressure. 6. Motor vehicle door according to claim 1 to 5, characterized in that the tip of the locking bolt is conically shaped ( 4 ). 7. Motor vehicle door according to claim 1 to 6, characterized in that the anchor plate ( 3 ) has an opening for receiving the locking bolt, which is adapted to the conical shape of the locking bolt ( 5 ). 8. Motor vehicle door according to claim 1 to 7, characterized in that the locking bolt ( 2 ) has depressions ( 2 a) in which a spring-pressure-supported ball ( 1 b) engages and the locking bolt in its respective end position ( Open or closed position) fixed. 9. Vehicle door still claims 1 to 8, characterized in that the operation of the (security) lock or the locking bolt ("open" or "closed") is controlled by a relay ( 9 ).