EP2681388B1 - Motor vehicle door lock - Google Patents

Description

The invention relates to a motor vehicle door lock, with a locking mechanism, and with a closing / opening device with at least one drive, at least one transmission element and a drive pawl, wherein the drive works with the interposition of the respective transmission element on the drive pawl to open or close the locking mechanism.

A motor vehicle door lock of the construction described above is exemplified in the utility model DE 20 2008 015 789 U1 Zuzieheinrichtungen in motor vehicle door closures are usually used to transfer a motor vehicle door located, for example, in Vorrast in the main branch. In this process, not insignificant counter forces must be overcome, which are regularly applied by compressed in this process door rubber gaskets. With the help of the generally electrically operated Zuzieheinrichtung now succeed this closing process particularly comfortable and easy.

From the DE 101 64 438 A1 is a rotary latch with a rotatable from an open position on a pre-locking position in a main latching position rotary latch is known, which is held in its two locking positions of a releasable release by a pawl, wherein the rotary latch can be transferred by motor force from the Vorrast- to the Haupraststellung.

From the DE 10 2006 024 203 A1 a locking device is known which drives a lock actuator to bring a striker and a lock in a first engaged state, so that a door is held in a closed state, wherein the locking device formed on the door comprises: a detection unit which is formed to output a signal when the striker enters a recess into which the striker fits, the striker actuator being actuated when the detection unit outputs the signal while the striker and the lock are in the first engaged state.

From the DE 10 2008 048 772 A1 a motor vehicle door lock is known, with a locking mechanism, as well as a closing / opening device which has at least one drive and a lever drive, wherein the lever drive is held in the engaged position by an unactuated release lever and assumes its disengaged position upon actuation of the release lever.

In addition, opening devices are known, which generally provides for an opening of the locking mechanism. Such opening aids are used for example in the DE 10 2004 052 599 A1 described, inter alia, in the equally relevant DE 20 2008 007 310 U1 is referenced. In the simplest case, such opening devices or opening aids are based on an electric drive which lifts a pawl from a catch of a closed locking mechanism. As a result, the catch can spring-assisted open and release a previously captured locking pin and thus the associated motor vehicle door as a whole.
When Zuzieheinrichtungen or Zuziehhilfen often raises the problem of so-called emergency interruption, as in the introduction already mentioned DE 20 2008 015 789 U1 is discussed. Such an emergency interruption is required, among other things, if the closing process has to be aborted. Examples of such scenarios arise when an operator with a finger or his hand engages in the door gap to be closed. The same applies to the case that, for example, a jacket of the operator is clamped in the door gap.
In all these cases of emergency interruption is about stopping the closing process as quickly as possible and reliable and at the same time at the same time to open the door or release this for this purpose proposes the DE 20 2008 015 789 a procedure in which the closing / opening device with its local transmission element drives as it were to block and this does not provide for the locking mechanism. In this way, an interacting with the transmission element stop ensures that in the described blockage case part of the resulting blocking force is introduced directly into the stop. As a result, the total acting between the drive pawl and the locking force is reduced.

In general, the drive pawl or closing pawl works directly or indirectly on the rotary latch. Once the catch is in the pre-rest, the drive pawl is applied by motor in such a way that the catch is transferred from the pre-rest in the main branch. Of course, this is only an example.

In practice, motor vehicle door closures are increasingly being used, which are or are equipped with both a closing aid and an opening aid. On the one hand, this can be attributed to increased comfort requirements and, on the other hand, that auxiliary equipment is becoming increasingly cheaper due to the high volumes it has now reached and, accordingly, finding access to the mass market. However, such motor vehicle door locks are constructed relatively expensive, especially if in addition the possibility should be created to provide an emergency interruption of the closure. Here, the invention aims to provide a total remedy.

The invention is based on the technical problem of developing such a motor vehicle door lock so that the design effort is reduced overall and synergy effects are observed.

To solve this technical problem, a generic motor vehicle door lock in the invention is characterized in that the ejector is coaxially mounted with the closing pawl. It is advisable when the ejector lever and the closing pawl are mounted together on the Zuziehübertragungshebel. The Zuziehübertragungshebel is in turn connected to the Zuziehantrieb. Once the Zuziehantrieb is applied, the Zuziehübertragungshebel is pivoted. As a result, the closing pawl also undergoes a pivoting action and, in turn, ensures that the catch is pulled in as described. In this case, the Zuziehantrieb the Zuziehübertragungshebel mechanically and / or electrically act, so provide the described pivoting. The Zuziehübertragungshebel may be mounted coaxially with the catch, whereby an overall compact design is provided.

A mechanical and / or electric opening drive and a mechanical and / or electrical Zuziehantrieb are each realized with the associated opening transfer lever and Zuziehübertragungshebel the opening drive including opening transfer lever in addition to the opening function for the locking mechanism is also set to interrupt a Zuziehantrieb initiated in conjunction with the Zuziehübertragungshebel Zuziehfunktion.

In the context of the invention, therefore, both an opening drive and a closing drive are used, so that the general functional states of an opening function and a closing function can be mapped. The opening function is usually realized mechanically and / or electrically. In the latter case, one speaks of the so-called "electrical opening". On the other hand, the closing function usually takes place purely electrically.

In the context of the invention, the interruption of the closing function, for example in connection with an emergency interruption, is now proceeded in such a way that the opening drive ensures this. That is, to illustrate the emergency interruption according to the invention no additional facilities or drives required, but rather provides the already existing opening drive. In this connection, the closing function can be interrupted mechanically and / or electrically. In the former case, the opening drive provides mechanical loading to interrupt the closing function. The latter variant corresponds to the fact that the electric opening drive, ie "EÖ" provides for the interruption of the closing function.

In this way, the overall design effort is reduced and can be synergy effects between the two drives use, in this case for the emergency interruption of Zuziehfunktion. As a result, the manufacturing costs are reduced and the reliability is increased.

To achieve this in detail, the opening drive for interrupting the Zuziehfunktion by means of the opening transfer lever ejects the Ziehiehklinke. The closing pawl usually attacks a catch of the locking mechanism. Once the ratchet has taken a certain closed position, for example, the pre-locking position, the Zuziehantrieb is activated and provides the Ziehiehkeke that the catch is transferred from its current closed position, starting in the main position.

In this way, not only a comfortable closing process is provided, but is also increased overall safety. For the invention ensures that a motor vehicle door interacting with the motor vehicle door lock is in each case transferred to its main latching position and consequently, in the event of an accident, all the safety devices in the motor vehicle door can, as planned, have their effect.
In order to interrupt the described closing process or the closing function, for example in the context of an emergency interruption with clamped jacket, fingers, hand, etc., the opening drive ensures that the closing pawl is ejected with the aid of the opening transmission lever assigned to the opening drive. The ejected pawl is now no longer able to (further) apply or pull the catch. Rather, the catch is released from the closing pawl and can be pivoted spring-assisted in its open position. A previously caught locking bolt is released. The same applies to the associated motor vehicle door.
To realize this in detail, an ejector lever is provided. The ejector lever is urged by the opening transmission lever to eject the closing pawl. For this purpose, the ejector lever is interposed as it were between the opening transfer lever and the closing pawl. As soon as the ejection lever is pivoted by means of the opening transmission lever, it ensures that the closing pawl is lifted off its engagement with the rotary latch.

The opening transfer lever is equipped with at least two arms with a drive arm and a release arm. The drive arm interacts with the opening drive. In contrast, the release arm ensures that the closing pawl is acted upon. For this purpose, the release arm operates regularly on the ejector lever already described and thus on the closing pawl or directly on the closing pawl.
Mostly both an electrical and a mechanical opening drive are provided. The opening transmission lever may in this connection interact with a drive wheel of the electric opening drive. For this purpose, the drive wheel usually has a working on the opening transmission lever eccentric.

Rotations of the electric opening drive or of the drive wheel acted upon by it are then converted via the eccentric into a pivoting of the opening transfer lever. As soon as the opening transmission lever is pivoted on its drive arm, it ensures with its trigger arm that the ejector lever is acted upon. The acted ejector lever in turn ensures that the previously located in engagement with the catch latch is lifted from this.

In addition to the described electric opening drive, a mechanical opening drive is provided for the opening transfer lever. This mechanical opening drive may act on a connecting arm of the opening transfer lever. In this case, a coupling element is usually provided, which connects the opening transfer lever or its connecting arm with the mechanical opening drive. The mechanical opening drive may be designed as a lever, hidden handle, etc. A mechanical connection with an internal door handle and / or outside door handle is conceivable.

In any case, an operation of this lever or the corresponding door handle or the mechanical opening drive ensures that again the opening transmission lever is pivoted, in such a way that the opening transmission lever with its release arm removes the closing pawl of the rotary latch. For this purpose, the release arm works on the ejector lever, which in turn ejects the Ziehiehklinke.

In order to realize these various described functional states in detail, the opening transfer lever advantageously has an actuating element. This actuator ensures that in the opening function, a pawl is lifted from the catch of the locking mechanism. This is the normal functionality of the so-called "electrical opening EÖ" as well as the mechanical opening process. Thus, as soon as the opening transmission lever is mechanically and / or electrically pivoted (and the closing function is stopped), the actuating element ensures that the pawl is lifted off the catch. As a result, the rotary latch spring-assisted transition to its open position and release the previously captured locking pin. A vehicle door carrying the locking bolt can be opened.

In the context of the invention, the aforementioned actuating element is now set up in addition to the interruption of the closing function. For this purpose, the actuator interacts to interrupt the closing function with the closing pawl and / or the ejector lever upstream of the closing pawl.

For this purpose, the actuating element is regularly designed as an actuating pin. This actuating pin acts upon interruption of the closing function the ejector lever. In this way, the closing pawl is removed from its engagement with the catch. At the same time the actuating element or the actuating pin ensures that the pawl is lifted from the rotary latch.

The interruption of the closing function is thus simultaneously functionally connected by this quasi-dual functionality of the actuating element or actuating pin, that at the same time the pawl is lifted from the rotary latch. In other words, the retracted during the closing process with the help of Zuziehklinke rotary latch is not only mechanically released from the zuziehenden Zuziehklinke, but the spring-assisted opening operation of the rotary latch is also not hindered in this process. For the actuator or the actuating pin at the same time ensures that the pawl is lifted from the catch in the sense of "electrical opening".

As a result, the catch can pivot freely under pressure from its previously assumed closed position into the open position when the closing function is interrupted and the previously caught motor vehicle door is released.

As already explained, the opening drive is equipped, for example, with an additional lever in the passenger compartment, with a door handle, etc., for its mechanical actuation. In addition to this, there is often also an electrical switching element in the passenger compartment or in the vicinity of the passenger compartment in order to apply the electric opening drive as desired. This electrical switching element is typically used in the process of "electrically opening". If necessary, the electrical switching element also provides the described emergency interruption of the closing function. The same applies to the lever. In this case, the lever in question and the electrical switching element can be used alternatively to each other.

As a result, a motor vehicle door lock is provided which is equipped with both an opening function and a closing function. Typically, the so-called "electrical opening" is used. The invention synergetically uses the opening drive in the event that an emergency interruption of the closing function is required. For this purpose, it is provided that the opening drive interrupts the mechanical connection chain of the closing device. In detail, the opening drive ensures that the closing latch of the closing device acting on the catch is lifted off the latter.

As in this process typically and at the same time the pawl is lifted with respect to the catch, as a result of this, the catch spring-supported and swing open without mechanical blockade, thereby releasing the previously captured locking pin. The same applies to a motor vehicle door cooperating therewith. Here are the main benefits.

The solution according to the invention is equally applicable to a catch of rotary latch and one or two pawls as well as for a Mehrklinkengesperre, in which additionally a Blockadeklinke for the pawls is used.

Fig. 1

den erfindungsgemäßen Kraftfahrzeugtürverschluss bei einem Zuziehvorgang,

Fig. 2

das Gesperre in geschlossenem Zustand und

Fig.3

den Kraftfahrzeugtürverschluss nach Fig. 1 bei Unterbrechung der Zuziehfunktion (Notunterbrechung).

In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment; show it:

Fig. 1

the motor vehicle door lock according to the invention during a closing process,

Fig. 2

the locking mechanism in the closed state and

Figure 3

the motor vehicle door lock after Fig. 1 in case of interruption of the closing function (emergency interruption).

In the figures, a motor vehicle door lock is shown, which is equipped in a conventional manner with a locking mechanism 1, 2 of rotary latch 1 and pawl 2. Once the catch 1 their Hauptastaststellung after the Fig.2 In the context of the example illustrated case finds no strict connection between on the one hand the pawl 2 and on the other hand, the rotary latch 1 in the main latching position or a contrast upstream in the strictness Pre-locking position instead. Nevertheless, these two per se conventional terms for the following considerations should be retained. In this case, the main locking position is usually identified with a main closing position or closing position, whereas the pre-locking position belongs to a Vorschließposition.

If the blockage of the catch 1 by the pawl 2 ceases, the catch 1 can rotate counterclockwise about its axis 3 due to the force of a spring, not expressly shown, and moves into the open position. This is a previously captured and only in the Fig. 2 indicated lock pin 4 is released, which is mechanically connected to a motor vehicle door, not shown in the usual manner. This process is rudimentary in the Figure 3 shown.

The pawl 2 is rotatably supported about an axis 5. Both the rotary latch 1 and the pawl 2 as well as the remaining elements of the motor vehicle door lock to be described are taken and stored in a total of an indicated lock case 6.

Of particular importance for the invention is now a closing / opening device 7 to 16, which is equipped with at least one drive 7 to 11 and 13, 14 a transmission element 12, 15 and a drive pawl 16. The at least one drive 7 to 11 and 13, 14 operates with the interposition of the transmission element 12, 15 on the drive pawl 16. In this way, the locking mechanism 1, 2 open or pull.

According to the invention, a mechanical opening drive 10, 11 and / or an electric opening drive 7 to 9 and additionally a mechanical and / or electrical closing drive 13, 14 are provided. To the mechanical opening drive 10, 11 and / or electric opening drive 7 to 9 includes a common opening transfer lever 12. In contrast, the mechanical and / or electrical Zuziehantrieb 13, 14, a Zuziehübertragungshebel 15 assigned. Of particular importance is the fact that the opening drive 7 to 11 including opening transfer lever 12 in addition to the opening function for the locking mechanism 1, 2 and to interrupt a from Zuziehantrieb 13, 14 in conjunction with the Zuziehübertragungshebel 15 initiated Zuziehfunktion is set up.

To make this clear in detail, the opening drive 7 to 11 is first explained in more detail. Actually, the opening drive 7 to 11 is composed of the electric opening drive 7 to 9 and the mechanical opening drive 10, 11. The electric opening drive 7 to 9 has an electric motor 7, which in known manner, with the aid of its output shaft, displaces a worm into rotations, which in turn act on a drive wheel 8 on the peripheral side. The drive wheel 8 is rotatably mounted about an axis 17 in the lock case 6.

The drive wheel 8 is equipped with an eccentric 9. The eccentric 9 operates on the opening transmission lever 12 in the context of the functional position Fig. 3 , In addition, the eccentric 9 provides in conjunction with the opening transmission lever 12 for the representation of the opening function. In other words, the electric opening drive 7 to 9 in conjunction with the opening transfer lever 12 for the function "electrically open EÖ".

For this purpose, the drive wheel 8 is acted upon by the electric motor 7 so that the drive wheel 8, starting from the functional position to Fig. 2 , the closing position of the locking mechanism 1, 2, performs a clockwise rotation about the axis 17. In this process, the eccentric 9 interacts with the opening transmission lever 12 or its drive arm 12a.

In fact, the opening transmission lever 12 is composed of the driving arm 12a, a connecting arm 12b and finally a triggering arm 12c. Once the eccentric 9, the drive arm 12 a of the at least two-armed opening transfer lever 12 by the described movement of the Drive wheel 8 clockwise applied about the axis 17, the opening transmission lever 12 undergoes a rotation about its axis 5 in the counterclockwise direction, as indicated by a corresponding arrow. In fact, the opening transfer lever 12 is mounted coaxially with the pawl 2 on the common axis 5.

Anyway, this leads in the Fig. 3 indicated by the arrow there counterclockwise movement of the opening transfer lever 12 about its axis 5 to that in the closed position to Fig. 2 located pawl 2 is lifted from the catch 1. In order to achieve this, an actuating element 21, which will be described in more detail below, interacts with the pawl 2 and lifts it away from the rotary latch 1. As a result, the catch 1 spring-assisted take their open position and release the previously captured locking pin 4 and, accordingly, a motor vehicle door. This process corresponds to the opening function or the already described "electrical opening EÖ".

The closing function is realized by means of the closing drive 13, 14. For this purpose, an electric motor 13, which is shown only schematically, operates on a transmission element 14, which, in the example, may be a Bowden cable or another transmission element 14. In fact, in this process, the Bowden cable 14 is acted upon so that the Zuziehübertragungshebel 15 about its axis 3 a clockwise movement corresponding to that in the Fig. 1 indicated arrow performs. In fact, the shows Fig. 1 the motor vehicle door lock in question during a Zuziehvorgang.

Since the closing pawl 16 is mounted coaxially with an ejector lever 18 and together with the ejector lever 18 on the Zuziehübertragungshebel 15 in a common axis 19, this process causes the Rotary latch 1 at the transition from the Fig. 1 to Fig. 2 in their closed main rest position or closing position according to the Fig. 2 is transferred.

Previously, the Zuziehklinke 16 has a pin 20 overlapped on the rotary latch 1, as soon as the catch 1 its Vorschließposition or pre-locking position as shown Fig. 1 has taken. As soon as the Zuziehübertragungshebel 15 is pivoted about its axis 3 in the clockwise direction according to the direction of the arrow indicated starting from this prelocking, also the closing pawl 16 follows this pivoting movement. As a result, the rotary latch 1 is also pivoted clockwise about the common axis 3. This indicates an arrow in the Fig. 1 at. In this way, the catch 1 moves from its Vorschließposition Fig. 1 in the main closing position or closing position Fig. 2 above.

The described process of closing at the transition from the functional position to Fig. 1 to Fig. 2 can now be interrupted. This is necessary, for example, in the event that a hand, a finger, a jacket, etc. is clamped between the slowly closed motor vehicle door and the associated motor vehicle body. This is typically referred to as an emergency interruption. In order to realize this emergency interruption in detail, the opening drive 7 to 11 ensures that the closing pawl 16 is ejected. That is, with the aid of the opening drive 7 to 11, the mechanical connection of the Zuziehantrieb 13, 14 via the Zuziehübertragungshebel 15, the closing pawl 16 is finally interrupted until the catch 1.

For this purpose, the opening transmission lever 12 is equipped with the already mentioned actuator 21. The actuating element 21 ensures - as described - in the opening function that the pawl 2 is lifted from the catch 1 of the locking mechanism 1, 2. In addition to this is set the actuator 21 to interrupt the closing function, as will be explained in more detail below. In effect, the actuating element 21 interacts to interrupt the closing function either directly with the closing pawl 16 or via the upstream ejector lever 18 with the respective closing pawl 16, as this is realized in the context of the embodiment.

The actuator 21 is formed as an actuating pin which extends perpendicular to the opening transmission lever 12. To interrupt the Zuziehfunktion applied to the trigger arm 12 c of the transmission lever 12 actuating pin 21 acts on the ejector 18 so that the closing pawl 16 is removed from its engagement with the rotary latch 1. At the same time the actuating pin 21 ensures that the pawl 2 is lifted from the catch 1. To initiate this in each case, a lever may be provided in a passenger compartment, not shown, which acts as a mechanical opening drive 10, 11 and engages mechanically via a coupling element 11 on the opening transmission lever 12. Alternatively, however, the opening transmission lever 12 can also be acted upon by means of the electric opening drive 7 to 9.

The operation is as follows. Once the ratchet 1, 2 is pulled, the Zuziehübertragungshebel 15 ensures that it follows the Ziehiehklinke 16 in this process. In fact, the closing transmission lever 15, the closing pawl 16 mounted thereon and the rotary latch 1 rotated by engagement of the closing pawl 16 on the peg 20 make a total clockwise movement. This also applies to the ejector 18. This process is the Fig. 1 represents.

If now this Zuziehvorgang be interrupted, it must be a total of the opening transfer lever 12 pivotal movement about its axis. 5 Run counterclockwise as it is Fig. 3 represents. This is achieved either by the eccentric 9 already described with the aid of the electric motor 7 or by the fact that the mechanical opening drive 10, 11 acts on the connecting arm 12b of the opening transfer lever 12 via the coupling element 11 accordingly. In any case, each interruption of the closing process by the mechanical and / or electric opening drive 7 to 11 corresponds to the opening transfer lever 12 performing the described counterclockwise pivoting movement about the axis 5.

As a result, the actuating pin 21 operates on the ejector 18, which is pivoted about the axis 19 with the Ziehiehkeke 16 clockwise. The ejector 18 acts in this process, a pin 22 on the closing pawl 16, so that the closing pawl 16 is lifted from the pin 20 on the catch 1 in total. The catch 1 is released (see the in the Fig. 3 indicated arrow, which indicates the associated counterclockwise movement of the rotary latch 1 about its axis 3). According to the invention, the ejector lever, possibly spring-assisted, abuts against the actuating pin 21 during the entire closing process.

Simultaneously with the described process, the actuating pin 21 ensures that the voltage applied to the rotary latch 1 or fallen into the rotary latch 1 pawl 2 is lifted from the rotary latch 1. For this purpose, the actuating pin 21 operates on the end of the pawl 2 and ensures that the pawl 2 performs a counterclockwise movement about its axis 5. As a result, the pawl 2 is removed from the catch 1.

Both described and practically synchronous processes have the consequence that the catch 1 is spring-assisted opened by making a counterclockwise movement about its axis 3. This allows the previously released locking pin 4 free. The same applies to a mechanically connected to the locking pin 4 and not explicitly shown motor vehicle door.

That is, the interruption of the closing process by means of the mechanical and / or electric opening drive 7 to 11 simultaneously leads to the pawl 2 is lifted from the catch 1. As a result, the catch 1 can swing open collision-free and spring-assisted and release the locking pin 4. As a result, an immediate and reliable emergency interruption of the closing function by means of the opening drive 7 to 11 is provided.

Claims (14)

1. Motor vehicle door latch, with a locking mechanism (1, 2), and with a closure/opening device (7 to 16) with at least one drive (7 to 11 and 13, 14), at least one transmission element (12, 15) and one drive pawl (16), whereby the drive (7 to 11 and 13, 14) works on the drive pawl (16) with interposition of the transmission element (12, 15), in order to open or close the locking mechanism (1. 2), whereby a mechanical and/or electrical opening drive (7 to 11) and a mechanical and/or electrical closure drive (13, 14) with respectively pertaining opening transmission lever (12) and a closure transmission lever (15) are executed, whereby the opening drive (7 to 11) including the opening transmission lever (12) in addition to the opening function for the locking mechanism (1, 2) is also set up to interrupt a closure function initiated by the closure drive (13, 14) in conjunction with the closure transmission lever (15), characterized in that the ejector lever (18) is accommodated coaxially with the closure pawl (16).
2. Motor vehicle door latch according to claim 1, characterized in that the opening drive (7 to 11) ejects the closure pawl (16) to interrupt the closure function by means of the opening transmission lever (12).
3. Motor vehicle door latch according to claim 1 or 2, characterized in that an ejector lever (18) is provided for which is acted on by the opening transmission lever (12) to eject th closure pawl (16).
4. Motor vehicle door latch according to claim 3, characterized in that the ejector lever (18) and the closure pawl (16) are mounted on the closure transmission lever (15).
5. Motor vehicle door latch according to one of the claims 1 to 4, characterized in that the opening transmission lever (12) is equipped at least on a dual arm basis with a drive arm (12a) and a triggering arm (12c).
6. Motor vehicle door latch according to one of the claims 1 to 5, characterized in that both an electrical opening drive (7 to 9) and a mechanical opening drive (10, 11) are provided for.
7. Motor vehicle door latch according to claim 6, characterized in that the opening transmission lever (12) interacts with a driv wheel (8) of the electrical opening drive (7 to 9) and/or a coupling element (11) of the mechanical opening drive (10, 11).
8. Motor vehicle door latch according to claim 6 or 7, characterized in that the drive wheel (8) has a cam (9) working on the opening transmission lever (12).
9. Motor vehicle door latch according to one of the claims 1 to 8, characterized in that the opening transmission lever (12) is equipped with a connecting arm (12b) for the coupling element (11) of the mechanical opening drive (10, 11).
10. Motor vehicle door latch according to one of the claims 1 to 9, characterized in that the opening transmission lever (12) has an activation element (21), which in the opening function lifts a pawl (2) from a catch (1) of the locking mechanism (1, 2).
11. Motor vehicle door latch according to claim 10, characterized in that the activation element (21) is set up additionally to the interruption of the closure function.
12. Motor vehicle door latch according to claim 10 or 11, characterized in that the activation element (21) interacts with the closur pawl (16) and/or the upstream jector lev r (18) to interrupt the closure function.
13. Motor vehicle door latch according to one of the claims 11 or 12, characterized in that the activation element (21) is formed as an activation pin (21), which acts on the ejector lever (18) to lift the closure pawl (16) from its engagement with the catch (1) during interruption of the closure function and simultaneously lifts the pawl (2) from the catch (1).
14. Motor vehicle door latch according to one of the claims 1 to 13, characterized in that the opening drive (7 to 11) is equipped with a lever (10) accessible in the passenger compartment and/or an electrical switching element for its activation.

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