DE10320439A1 - Motor vehicle door lock, has externally and internally operating coupling components that optionally connect safety catches with internally and externally operating levers - Google Patents

Abstract

Theft protection mechanisms (16,17) and child safety mechanisms operate safety catches through an externally operating coupling component (11) and an internally operating coupling component. The externally and internally operating coupling components optionally connect the safety catches with the internally operating levers (4a,4b) and externally operating lever (10).

Description

The The invention relates to a motor vehicle door lock, with a locking mechanism, furthermore with at least one inner operating lever and one outer operating lever, and with an anti-theft device and a child safety device. - The lock has as usual about a Rotary latch and a pawl, the pawl being exemplary with the help of a release lever can be dug out.

Motor vehicle door locks of the embodiment described above are known. Such facilities have proven themselves However, the structure is complicated and rely on a multi-leveraged Mechanics back. That drives up costs. This is where the invention comes in.

The Invention is based on the technical problem of a motor vehicle door lock to further develop the design described at the outset so that the overall structure is simplified and thus reduced manufacturing costs accompanied.

to solution this technical problem is a generic motor vehicle door lock characterized in that both of the aforementioned safety devices, this means both the anti-theft device and the child safety device work on the locking mechanism by means of a common coupling unit, this common coupling unit optionally with the locking mechanism the interior control lever, the outside operating lever or both levers. In other words, the common coupling unit ensures for this, that depending on their position, either the interior control lever or the outside operating lever or both the internal control lever as also the outside operating lever can act on the locking mechanism or not.

Usually can be the three basic with the help of the coupling unit Anti-theft positions off, child lock off "," anti-theft device off, child lock on "and" theft protection on, child lock on ". The first-mentioned functional position "anti-theft device corresponds off, childproof lock off " that both the interior control lever as well as the outside operating lever with the help of the common coupling unit individually the locking mechanism to open are able to. An associated motor vehicle door can be So open from the inside as well as from the outside.

The Coupling unit usually consists of an external actuation coupling element and an internal actuation coupling element together. The internal actuation clutch element interacts with the internal control lever, while the external actuation clutch element interacts with the outside operating lever. In both cases the two coupling elements optionally ensure that the locking mechanism with the internal operating lever, the outside operating lever or is coupled with both levers. Basically, this function can can also be taken over by a common coupling unit, albeit preferably an as it were two-part clutch unit with an external actuation clutch element as well as internal actuation coupling element is realized.

In the position "theft protection off, childproof lock on " only the outside operating lever in operation, can consequently open the locking mechanism, whereas the Locked inner operating lever is or carries out an idle stroke compared to the locking mechanism. With in other words, the associated Motor vehicle door not opened from the inside become. There is an outside opening against it possible. The corresponds to the usual Parental Control function.

Finally corresponds the position "theft protection a, parental control a "to that both the interior control lever as well as the outside operating lever both take their "locked" position, consequently each carry out an idle stroke in relation to the locking mechanism. The associated motor vehicle door can be So neither open from the inside nor from the outside, so that the anti-theft function (and thereby the child lock function) guaranteed is. A manipulative intervention by an unauthorized person Window cutout or door gap so lets no opening of the associated Motor vehicle door to. The anti-theft device, as usual, prevents the door from being opened Motor vehicle door, while opening the childproof lock the door only from the outside, however does not allow from the inside. If the anti-theft device is inserted, the childproof lock finally comes no function too, because the anti-theft device - as described - opens both from the outside as well as excludes from the inside.

• i) der Innenbetätigungshebel und der Außenbetätigungshebel mechanisch mit dem Gesperre gekoppelt sind ("Diebstahlsicherung aus, Kindersicherung aus");
• ii) lediglich der Außenbetätigungshebel auf das Gesperre arbeitet, während der Innenbetätigungshebel einen Leerhub vollführt ("Diebstahlsicherung aus, Kindersicherung ein") oder schließlich
• iii) sowohl der Innenbetätigungshebel als auch der Außenbetätigungshebel mechanisch nach vorherigem Verriegeln von dem Gesperre entkoppelt sind und beide jeweils einen Leerhub vollführen ("Diebstahlsicherung ein, Kindersicherung ein"). Das heißt ein Verriegelungshebel nimmt durch die vorherige Verriegelung gleichzeitig seine Verriegelungsstellung ein.

As a result, the common coupling unit according to the invention ensures that

• i) the inner operating lever and the outer operating lever are mechanically coupled to the locking mechanism ("anti-theft device off, child safety device off");
• ii) only the outside operating lever works on the locking mechanism, while the inside operating lever performs an idle stroke ("theft si childproof lock on ") or finally
• iii) both the inner operating lever and the outer operating lever are mechanically decoupled from the locking mechanism after they have been locked beforehand and both carry out an idle stroke ("anti-theft device on, child safety device on"). This means that a locking lever simultaneously assumes its locking position due to the previous locking.

All three functional positions i), ii) and iii) can be selected represent with the help of the common coupling unit. It works with the least constructive means and a reduced number of parts, because the functions of child protection and theft protection are combined with each other. additionally the installation space can be kept to a minimum.

in the The coupling unit usually has an internal actuation coupling element and an external actuation clutch element on. This means, the clutch unit is mostly constructed in two parts, with the two components internal actuation coupling element and external actuation coupling element.

Also the interior control lever mostly has one two-part construction with an internal control handle and one Internal operating release lever. Both of the aforementioned levers, that is to say the inner actuation handle lever as well as the internal actuation release lever, can be selected with the help of the internal actuation coupling element couple or connect with each other. Here is the inside actuation lever regularly to one Inside door handle or inside door handle connected while the internal actuation release lever works on the release lever for the locking mechanism already mentioned. Basically can the internal actuation release lever but also directly the pawl without an intermediate release lever dig.

The Internal operating coupling element is therefore able to mechanically actuate the inside handle lever with the internal actuation release lever connect so that a continuous mechanical connection from inside door handle or inside door handle to towards the release lever for the Lock is realized. Pulling movements on the inside door handle result in In this case, this leads directly to the locking and consequently a connected motor vehicle door can be opened. In In this case, the inner operating lever is in its entirety Position "unlocked" and consequently the motor vehicle door lock in the position "anti-theft device off, childproof lock off ".

If on the other hand, the internal actuation coupling element the mechanical connection between the inner actuation handle lever and the inner actuation release lever the interior control lever overall, its functional position is "locked" because of the internal actuation lever and hence the inside door handle performs an idle stroke. The Accordingly, the lock cannot be opened from the inside. In this case it is the outside operating lever still mechanically coupled to the locking mechanism, the motor vehicle door lock has overall the position "anti-theft protection from Child lock on "reached.

In both cases (this means with external actuation levers coupled to or free of the locking mechanism) let yourself the internal actuation clutch element to display the child lock function described with the help operate the child safety device. In the "Childproof lock on" position the inside handle lever opposite the Internal operating release lever and thus the locking mechanism the idle stroke described. Basically can Naturally also the anti-theft device for the described operation of Internal operating coupling element to care.

The External operating lever works with the optional interposition of the external actuation coupling element on the release lever of the Locking mechanism. Doing so the external actuation coupling element usually has a contour to interact with an anti-theft device. In the The contour may not be restrictive act about a recess in which the anti-theft element intervenes. The anti-theft device can be motorized or mechanical apply. It is also natural also possible, the external actuation clutch element z. B. about an engine or mechanically over a driver on the external locking lever or to operate the interior locking lever.

at the external actuation clutch element it is a in a guide of a housing insert or lock case insert of the associated housing for the motor vehicle door lock linear sliding lever. For the actuation of the external actuation coupling element usually provides a locking lever. Once the anti-theft device in the position "anti-theft device a "is convicted it also ensures that the internal actuation clutch element to the position "Child lock a "taken away becomes.

The external actuation coupling element thus represents the same as the internal actuation coupling element sure that the associated operating lever is either coupled to the locking mechanism or not. For this purpose, the external actuation coupling element or the linearly displaceable push lever is actuated accordingly with the aid of the locking lever. In the "anti-theft lock on" position, the external actuation coupling element or the thrust lever is in a position which corresponds to an idle stroke of the external actuation lever in comparison with the locking mechanism. In other words, the associated motor vehicle door cannot be opened from the outside.

There in this functional position "anti-theft device an "at the same time the anti-theft device ensures that the with the inner operating lever interacting internal actuation coupling element his position "parental controls a "takes overall the position "theft protection a, child lock on "the motor vehicle door lock reached. Because the anti-theft element ensures that the internal actuation clutch element in the position "Child lock a "the mechanical Coupling between the interior control handle and the inside actuation release lever picks.

If the position "anti-theft on" is assumed, by the locking lever the external actuation coupling element or the push lever to the idle stroke position for transferred the outside operating lever, provides then with the contour of the external actuation coupling element or thrust lever interacting anti-theft device for that at the same time the internal actuation coupling element the mechanical connection between the interior control handle and the Internal operating release lever picks. As a result, the position "anti-theft on" corresponds to Function position "Child lock a "so that overall the position "theft protection on, childproof lock on ". Overall, the child lock or the child lock lever not affected by theft protection.

If from this functional position "anti-theft device on, parental control on "out the anti-theft function is switched off, for example by the internal locking lever acts against its usual direction of actuation the external actuation coupling element comes free from the anti-theft device. Moves at the same time the internal actuation clutch element in a position coupling the two components of the inner operating lever (by spring force) back. The motor vehicle door lock is then in the position "anti-theft lock, child lock out".

in the The invention is based on an exemplary embodiment illustrative drawing closer explains; show it:

1a . 1b the motor vehicle door lock according to the invention in different views in the position "anti-theft off, child lock off";

2a . 2 B the motor vehicle door lock according to the 1a . 1b in the position "anti-theft lock off, child lock on" and

3a . 3b the motor vehicle door lock in the functional position "anti-theft lock on, child lock on".

In the figures, a motor vehicle door lock is shown, which has a locking mechanism 1 . 2 from catch 1 and pawl 2 which you can best find in the 1b recognizes. Both the catch 1 as well as the pawl 2 are in a lock case with a U-shaped cross section 3 rotatably mounted. The lock case 3 forms together with a lock cover, not shown, the housing or lock housing for the motor vehicle door lock.

In addition to the lock 1 . 2 is an internal control lever 4a . 4b realized, which is only in the 1b indicated connecting element of an inner door handle 5 can be applied. Pulling movements on the inside door handle 5 cause the interior operating lever 4a . 4b the in the 1b rotation shown counterclockwise about its axis 6 accomplished the locking 1 . 2 to open.

For this purpose, the inner operating lever 4a . 4b with a nose 7 equipped with a bevel 8th on a release lever 9 for the ratchet 1 . 2 works together (cf. 3b ). The interplay of the nose 7 of the internal control lever 4a . 4b with the fold 8th the release lever 9 ensures that the counterclockwise movements of the inner operating lever 4a . 4b in a vertical plane compared to the release lever 9 as well as locking 1 . 2 in lifting the pawl 2 and consequently an opening of the catch 1 and thus the motor vehicle door lock can be implemented.

Next to the inside control lever 4a . 4b there is an outside operating lever 10 , which is essentially parallel to the trigger lever 9 and thus perpendicular to the interior control lever 4a . 4b is arranged. The trigger lever too 10 is capable of that ratchet 1 . 2 with interposition the release lever 9 to open. There is an external actuation coupling element for this 11 in the form of a linearly movable thrust lever 11 intended.

The thrust lever 11 will be in a tour 12 a housing insert or lock case insert E out. This housing insert or inlet insert E is a plastic component which defines an inlet mouth for the motor vehicle door lock. In this inlet mouth is the one with the catch 1 interacting and not shown locking bolts.

The external actuation clutch element or the thrust lever 11 owns one in the leadership 12 engaging and only indicated guide pin 13 as well as a coupling pin 14 (see. 1a . 3a ). The coupling pin 14 of the external actuation coupling element or thrust lever 11 ensures in the "anti-theft lock" position and unlocks (cf. 1 and 2 ) that in 1a indicated rotary movements of the outer operating lever 10 be picked up by the release lever and to an opening of the locking mechanism 1 . 2 result. These rotary movements of the outer operating lever 10 counterclockwise by just in 1a indicated outside door handle 15 caused by using a connecting rod, a Bowden cable or the like on the outer operating lever 10 works as shown.

An anti-theft device can also be seen in the figures 16 . 17 that have a (anti-theft) engine 16 and an anti-theft device 17 features. The anti-theft device 17 is an anti-theft lever 17 which is on the axis 6 of the internal control lever 4a . 4b is rotatably mounted. The anti-theft device or the anti-theft lever 17 has a two-armed design with a blocking arm 17a and swivel arm 17b , The blockade arm 17a is able with a contour 18 of the external actuation coupling element 11 cooperate to the external actuation clutch element 11 in the "locked" position after the 3a to keep. The contour is within the scope of the exemplary embodiment 18 as a recess 18 to intervene for the blockade arm 17a designed, but this is not mandatory.

When taking the position after 3a the swivel arm ensures 17b the anti-theft device 17 making sure that an inside actuation clutch element 19 the in the 3a . 3b shown position "anti-theft on", which will be discussed later.

In addition to the anti-theft device 16 . 17 is still a child safety device 20 . 21 realized. The child safety device 20 . 21 has, for example, a child safety nut 20 which can be turned counterclockwise using a wrench, screwdriver, etc., like an arrow in the 1b implies and in the transition from the 1b to 2 B becomes clear. The counterclockwise pivoting movements of the child lock nut shown 20 cause one to the child safety nut 20 connected child safety lever 21 its in the 2 B shown extended position.

By the described adjustment of the child safety lever 21 becomes the internal actuation clutch element 19 counterclockwise around its axis 22 pivoted. Due to this fact, the inner actuation clutch element 19 now no longer able to use the two levers 4a . 4b of the internal control lever 4a . 4b mechanically couple with each other. This position can also be used with the anti-theft device 16 . 17 achieve as previously described. Because when the blocking arm intervenes 17a in the recess 18 of the external actuation coupling element 11 the swivel arm ensures 17b the anti-theft device 17 for the relevant pivoting of the inner actuation coupling element 19 ,

In fact, the inner operating lever is set 4a . 4b from an internal control handle 4a and an internal actuation release lever 4b together. The interior control handle 4a is with the inside door handle 5 connected while the inner operation release lever 4b over the nose already mentioned 7 has that with the fold 8th on the release lever 9 interacts.

The internal actuation clutch element is located 19 in the pivoted position after the 1a . 1b ("Childproof lock off") are the interior control lever 4a and the interior actuation release lever 4b mechanically coupled. So there is a continuous mechanical effect chain from the inside door handle 5 down to the release lever 9 and finally the ratchet 1 . 2 available so that over the inside door handle 5 and the interior control lever 4a . 4b the lock 1 . 2 and consequently a connected motor vehicle door can be opened. The childproof lock is deactivated and therefore not effective.

The swiveled-out position of the internal actuation coupling element 19 after the 2a . 2 B such as 3a . 3b on the other hand, corresponds to the fact that the inside actuation lever 4a mechanically from the internal actuation release lever 4b is separated. Pulling movements on the inside door handle 5 so result in an idle stroke of the internal actuation lever 4a compared to the internal actuation release lever 4b and thus the ratchet 1 . 2 , The child safety device 20 . 21 is then in the "on" position because the associated motor vehicle door cannot be opened from the inside. The same is done with the help of the anti-theft device 16 . 17 reached in the "on" position.

Depending on whether the outside operating lever 10 Effect on the ratchet 1 . 2 unfolded or not, with the childproof lock switched on, the in the 2 and 3 shown items "anti-theft lock, child lock on" ( 2a . 2 B ) or "anti-theft lock on, child lock on" ( 3a . 3b ) reached.

Takes the push lever or the external actuation clutch element 11 the position after the 1 and 2 is the blocking arm 17a the anti-theft device 17 unable to get into the recess 18 of the thrust lever 11 retract. The anti-theft device takes the functional position "off" because the thrust lever 11 in this end position with its coupling pin 14 when operating the outside operating lever 10 a mechanical connection between the outside operating lever 10 and the release lever 9 ensures. The lock 1 . 2 can be done from the outside using the outside door handle 15 be opened.

If, on the other hand, the external actuation coupling element or the thrust lever 11 the position after the 3a . 3b occupies, the coupling pin 14 out of engagement with the outside operating lever 10 brought, consequently, in relation to the ratchet 1 . 2 performs an idle stroke when actuated. In this case, the motor vehicle door lock cannot be opened from the outside.

The anti-theft device is in this position 17 in the "on" position so that its swivel arm 17b the internal actuation clutch element 19 swings. This is also how the interior control handle lever works 4a an idle stroke when pulling the inside door handle 5 , Both the interior control lever 4a . 4b as well as the outside operating lever 10 are not able to open the motor vehicle door lock in this position. This corresponds to the position "theft protection on". At the same time, of course, the child lock is also switched on, although the anti-theft element 17 and the child lock lever 21 can be operated completely independently of each other.

Around the external actuation coupling element or the push lever 11 with its spigot 13 within the leadership 12 to move is a locking lever 23 operated accordingly. This can happen by motor, as in the 1b and 2 B is shown or purely mechanical according to the 1a . 3a , In any case, rotation of the locking lever ensures 23 in the 3a clockwise making sure that the thrust lever 11 performs the linear movement described. The locking lever has this 23 about a stop 24 ,

The interior control handle 4a is with the help of a boom 26 able to use the locking lever 23 to be transferred to its "unlocked" position. The boom strikes 26 of the internal control lever 4a . 4b or the internal control handle 4a to an associated stop 25 of the locking lever 23 on. This process is carried out in the 1b indicated counterclockwise movements of the inner operating handle lever 4a around its axis 6 causes. Conversely, the locking lever 23 about the attack 25 and the boom 26 the interior control lever 4a . 4b or its interior control lever 4a act clockwise, like dash-dotted lines in the 1b is indicated.

The fact that the inner operating lever 4a . 4b is able to operate the locking lever 23 through the interaction between the boom 26 and the attack 25 A so-called "override" function can be displayed in its "unlocked" position. It is therefore possible to move the motor vehicle door lock from the inside into the "unlocked" position in this way.

Both the anti-theft device 16 . 17 as well as the child safety device 20 . 21 so work by means of the internal actuation coupling element 19 and the external actuation coupling element 11 on the lock 1 . 2 by using either the interior control lever 4a . 4b , the outside operating lever 10 or both levers 4a . 4b . 10 with the lock 1 . 2 be coupled. The child lock function or the child lock device can be used 20 . 21 mechanically depict a suitable manipulation tool in the child safety nut 20 engages and the child safety lever 21 adjusted. But it is also possible for motorized operation of the child safety device 20 . 21 to care. The child lock lever can also be used 21 be equipped with an appropriate contour to allow mechanical adjustment from the outside.

The same applies in principle to the anti-theft device 16 . 17 which can be inserted mechanically or by motor. In the exemplary embodiment, the anti-theft engine takes over 16 in connection with the Anti-theft element 17 an almost double function. First of all, the anti-theft device is blocked 17 the external actuation coupling element or the thrust lever 11 by the blocking arm 17a with the contour 18 of the thrust lever 11 interacts. At the same time, the swivel arm ensures 17b In this process, ensure that the internal actuation clutch element 19 is swung out, so that the inside actuation lever 4a and the interior actuation release lever 4b no mechanical connection (anymore).

This condition can be removed by using the anti-theft device 17 is designed mechanically or mechanically and additionally mechanically or mechanically the locking lever 23 is transferred to the "unlocked" position. This can also be done by means of a so-called "override", by means of the internal actuation lever 4a as part of a first stroke over the boom 26 interacting with the stop 25 on the locking lever 23 transferred the locking lever to the "unlocked" position. The internal actuation clutch element then provides a second stroke 19 , which during the first stroke the two partial levers 4a . 4b mechanically coupled with each other, ensuring that a continuous mechanical connection to the locking mechanism 1 . 2 is present, which can then be opened as part of the second stroke. Basically, it is also possible to use the locking mechanism 1 . 2 open in one stroke. Then the locking lever immediately 23 unlocked, the two levers 4a . 4b coupled and finally the locking mechanism 1 . 2 open.

A stop for the theft protection element is not expressly shown 17 on or on the push lever 11 or external actuation coupling element 11 , This stop ensures that the engine 16 moves to block in the "anti-theft lock off" position. The thrust lever 11 is in this case in the "unlocked" position. Only when the thrust lever 11 the position after the

3a . 3b occupies, is the anti-theft element 17 able in the recess 18 with its blockade arm 17a intervene. Otherwise the push lever or the external actuation coupling element moves 11 (spring-loaded) always in the direction of anti-theft / child safety off according to the 1a . 1b ,

Claims (11)

Motor vehicle door lock, with a locking mechanism ( 1 . 2 ), furthermore with at least one inner operating lever ( 4a . 4b ) and an external control lever ( 10 ), and with an anti-theft device ( 16 . 17 ) and a child safety device ( 20 . 21 ), characterized in that both of the aforementioned safety devices ( 16 . 17 ; 20 . 21 ) by means of a common coupling unit ( 11 . 19 ) on the lock ( 1 . 2 ) work with the clutch unit ( 11 . 19 ) the locking mechanism ( 1 . 2 ) optionally with the internal control lever ( 4a . 4b ), the outside operating lever ( 10 ) or both levers ( 4a . 4b ; 10 ) couples. Motor vehicle door lock according to claim 1, characterized in that the coupling unit ( 11 . 19 ) an external actuation coupling element ( 11 ) and an internal actuation coupling element ( 19 ) having. Motor vehicle door lock according to claim 1 or 2, characterized in that the inner operating lever ( 4a . 4b ) in two parts with internal control lever ( 4a ) and internal actuation release lever ( 4b ) is formed, both of the aforementioned levers ( 4a . 4b ) by means of the internal actuation coupling element ( 19 ) can be optionally coupled with each other. Motor vehicle door lock according to claim 3, characterized in that the interior actuating handle lever ( 4a ) on an inside door handle ( 5 ) is connected while the inside operation release lever ( 4 ) on a release lever ( 9 ) for the locking ( 1 . 2 ) is working. Motor vehicle door lock according to one of claims 1 to 4, characterized in that the inner actuation coupling element ( 19 ) to display the child lock function using the child lock device ( 20 . 21 ) is actuated so that in the "Child lock on" position, the interior control lever ( 4a ) opposite the internal actuation release lever ( 4b ) performs an idle stroke. Motor vehicle door lock according to one of claims 1 to 5, characterized in that the outer operating lever ( 10 ) with optional interposition of the external actuation coupling element ( 11 ) on the release lever ( 9 ) of locking ( 1 . 2 ) is working. Motor vehicle door lock according to one of claims 1 to 6, characterized in that the external actuation coupling element ( 11 ) a contour ( 18 ) to interact with an anti-theft device ( 17 ) has. Motor vehicle door lock according to claim 7, characterized in that the anti-theft element ( 17 ) is acted upon by a motor or mechanically. Motor vehicle door lock according to one of the Claims 1 to 8, characterized in that the external actuation coupling element ( 11 ) than in a tour ( 12 ) linear sliding lever ( 11 ) is trained. Motor vehicle door lock according to one of claims 1 to 9, characterized in that the external actuation coupling element ( 11 ) with the help of a locking lever ( 23 ) is operated. Motor vehicle door lock according to one of claims 1 to 10, characterized in that the anti-theft element ( 17 ) the internal actuation coupling element ( 19 ) with the realization of the position "anti-theft on".