EP2010739A2

EP2010739A2 - Motor vehicle door lock

Info

Publication number: EP2010739A2
Application number: EP07722265A
Authority: EP
Inventors: Andreas Kasper; Holger Schiffer
Original assignee: Kiekert AG
Current assignee: Kiekert AG
Priority date: 2006-04-24
Filing date: 2007-04-21
Publication date: 2009-01-07
Anticipated expiration: 2027-04-21
Also published as: WO2007121724A2; DE102006019336A1; DE502007002558D1; WO2007121724A3; EP2010739B1

Abstract

Disclosed is a motor vehicle door lock (1) comprising at least one locking mechanism, a first lever (3), a second lever (4), and a drive unit (5) with an electromotive drive (6), for example, and a rotatable actuator (7). The drive allows both the first lever to be transferred from a first functional position into a second functional position, and vice versa, and the second lever to be transferred from a first functional position into a second functional position, and vice versa, by means of the actuator. The inventive motor vehicle door lock is characterized in that the first lever and the second lever are interconnected via a coupling lever (9).

Description

Motor vehicle door lock

Description:

The invention relates to a motor vehicle door lock with at least

- a locking mechanism,

a first lever,

a second lever and

a drive unit with a z. B. electromotive drive and a rotatable actuator,

wherein with the drive via the actuator both the first lever from a first functional position to a second functional position and the second lever from a first functional position can be converted into a second functional position and vice versa. First lever and second lever generally means different levers within a motor vehicle door latch. For example, the first lever may be a central locking lever and the second lever may be an anti-theft lever. Furthermore, the levers may be those for the electrical opening of the rotary latch and the electrical tightening of the rotary latch. First and / or second lever can also be designed as a child safety lever or as a lever for the operation of a secondary lock. Always means with the first lever and second lever two levers of a motor vehicle door lock, which operate two (different) lock functions. A locking mechanism usually consists of a rotary latch and a pawl acting on the rotary latch. Lock lever and anti-theft lever act in such a motor vehicle door lock in a conventional manner with a corresponding locking mechanism and / or actuating mechanism such together, the locking lever in the unlocked position releases a corresponding force action chain (eg, inner idler chain and outer operating chain) and locks in the locked position or creates a dead return. While the locking lever, z. For example, in the embodiment where the central locking lever is normally interrupted by an external actuating chain, the anti-theft lever usually acts both on the external actuating chain and on an inner actuating chain, so that the motor vehicle door lock can not be unlocked in the anti-theft functional position even via an internal locking lever or an internal operating lever.

Motor vehicle door locks of the type described above are known in various embodiments. DE 4343 340 A1 discloses such a motor vehicle door lock in which a single electric motor drive operates both on a central locking lever and on an anti-theft lever. For this purpose, an output element with eccentric control pin is connected to the reversible electric motor, which on the one hand engages in a fork receptacle of Zentralveπiegelungshebels and on the other hand operates on a corresponding control surface on the anti-theft lever. Such motor vehicle door locks have proven themselves in principle. They are, however, capable of further development.

The invention has for its object to provide a motor vehicle door lock of the type described above, which can perform two castle functions with a single drive in a simple and reliable manner and which is constructed at the same time simple and inexpensive.

To solve this technical problem, the invention teaches in a generic motor vehicle door lock of the type described above, that the first lever and the second lever via a clutch lever mitein- connected to other. In this case, the second lever via the clutch lever with the actuator of the drive unit can be coupled or coupled. - In the context of the invention thus succeeds with a single electric motor drive a flawless and reliable operation or manipulation of several levers of a motor vehicle door lock. The coupling between the first lever and the second lever via the clutch lever, which at the same time couples the second lever to the actuator, ensures trouble-free operation in a structurally simple and cost-effective manner via a single drive, for. B. a single electric motor.

The clutch lever is preferably pivotally and slidably connected to the first lever and / or to the second lever and / or to the actuator. According to a particularly preferred embodiment of the invention, the clutch lever is acted upon or acted upon by at least one clutch spring, which z. B. is connected to the first lever.

The drive unit preferably has a rotatable adjusting disk (or a setting wheel) as an actuator, wherein the adjusting disk has at least one first control receptacle for the first lever and a second control receptacle for the second lever and / or the coupling lever. In the course of the rotation of the adjusting disk via the electromotive drive, therefore, on the one hand, the first lever for transferring from the first functional position to the second functional position (or vice versa) can be pivoted, since the first lever engages in a corresponding control receptacle of the adjusting disk or on such a control receptacle connected. In addition, the second lever can be transferred from the first functional position to the second functional position (or vice versa) by rotation of the adjusting disc via the electromotive drive, since the second lever, for. B. with the interposition of the coupling lever, engages in the second control receptacle of the adjusting disc or connected to the second control receptacle. Furthermore, the invention proposes that the rotatable adjusting disc is designed as a spring-loaded adjusting disc, which is traceable by means of a return spring in a basic position after actuation by the drive. This configuration of the adjusting disc with application of a "center-zero spring" makes it possible to perform the two actuation operations of the two levers not only with one and the same electric motor drive and one and the same adjusting disc, but also with an identical operating rotation of the same basic position in the same direction , possibly even over the same angle of rotation.

Thus, the invention proposes according to a very preferred embodiment, that the adjusting disc transferred by a first actuation from a basic position in a predetermined first rotational direction over a predetermined rotation angle, the first lever from the first functional position to the second functional position, wherein the adjusting disc after the first actuation via the return spring is returned to the home position and that subsequently by a second actuation again from the basic position in preferably the same first rotational direction of the second lever is transferred from the first functional position to the second functional position. This succeeds in particular because the clutch lever is preferably biased in the course of the first actuation of the first lever or in the course of pivoting of the first lever via the clutch spring. Subsequently, the clutch spring transfers the clutch lever to the return position of the adjusting disc in the basic position in an activated the second lever with the adjusting active fourth functional position, the second lever in this activated functional position of the clutch lever in the course of a second operation in the second functional position can be transferred. Accordingly, the spring-loaded clutch lever allows the operation of the first lever and the second lever successively with identical operating rotation in the same direction of rotation and possibly also with the same angle of rotation. The return In addition, taking into account the corresponding control receptacles in the adjusting disc, the half-zero spring ensures that not only electromechanical actuation but also manual actuation is possible in the event of a drive failure.

Of course, it is possible to convert the reversible motor by actuation of the actuator in the opposite direction of rotation, both the first lever in its first operating position and the second lever in its first functional position. Activation of the clutch lever after the first lever has been actuated takes place automatically via the clutch spring.

According to another proposal of the invention, the second control receptacle in the adjusting disk as a recess, z. B. slot guide, formed, in which a (connected to the second lever) coupling pin or the like coupling element of the coupling lever engages. The first shot in the adjusting disc can also be used as a recess, for. B. as edge-side adjusting recess, be formed, in which engages an actuating pin or the like actuating element of the first lever. The first control housing and second control housing can be arranged on different radii of the adjusting disc and / or in different "angular regions ¹ " of the adjusting disc. Overall, an arrangement of the first lever on the one hand and the second lever on the other hand succeeds without overlap or overlaps, so that a particularly compact and reliable construction is ensured.

The clutch lever can z. B. have a connection pin or the like, which in a recess, for. B. engages a slot guide of the first lever. In the region of this recess then preferably also the clutch spring is arranged, that is, the clutch spring moves the Connecting pin of the coupling lever in the slot guide or the coupling pin biases the clutch spring in the course of movement through the slot guide.

In one embodiment of the invention, the first lever as a locking lever, z. B. central locking lever, whose first functional position "unlocks" the position and the second functional position is the position "locked". The second lever may be formed as an anti-theft lever, the first functional position of the position "theft-proof" and the second functional position is the position "theft-proof". However, first lever and second lever can also be other levers, which fulfill two different lock functions, eg. B. in connection with the opening of the catch, with the closing of the catch, with a child safety lock or with an operation of a secondary lock.

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

1 is a motor vehicle with several motor vehicle door locks,

2 a detail of a motor vehicle door lock according to the invention in the position "unlocked" and "theft-protected",

FIG. 3 shows the article according to FIG. 2 in the position "locked" and "unbreakable steel",

4 shows the object according to FIG. 3 in the position "locked" and

"Clutch lever activated", 5 shows the article according to FIG. 4 in the position "locked" and "anti-theft",

Fig. 6 shows the object of Fig. 5 at the beginning of the unlocking and Entsicherungsvorganges and

FIG. 7 shows the object according to FIG. 6 in the position "unlocked" and "theft-proofed".

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A motor vehicle door lock 1 for a motor vehicle 2 is shown in detail in the figures, comprising a locking catch and a pawl acting on the rotary latch, a first lever designed as a locking lever 3, a second lever designed as a theft prevention lever 4, and a drive unit 5 having. Furthermore, such a motor vehicle door lock 1 in a manner known per se has corresponding force action chains for an internal operation and / or an external actuation as well as an interior lock and an exterior lock. This is not shown in detail. The locking lever 3 is usually designed as Zentralveniegelungshebel 3, which is actuated via the drive unit 5. The drive unit 5 has an electric motor drive 6 and a rotatable actuator 7, wherein the drive motor 6 via a gear unit 8, z. B. a screw or the like works on the actuator 7.

In the context of the invention is now with a single electric motor drive 6 via the rotatable actuator 7, both the locking lever 3 from a first functional position "unlocked" in a second functional position "locked" and the theft prevention lever 4 from a first functional position "theft-proof" in a second Function position "theft-proof" can be transferred and vice versa. To ensure this in a structurally simple and reliable manner, the Veπiegelungshebel 3 and the anti-theft lever 4 via a coupling lever 9 are interconnected. This means that the anti-theft locking lever 4 can be coupled to the actuator 7 of the drive unit 5 via the clutch lever 9. The clutch lever 9 is acted upon by a clutch spring 19, which is connected to the Veπiegelungshebel 3. For this purpose, an arcuate slot guide 20 is arranged in the locking lever, in which the spring 19, the pin 12 is applied.

The figures show that the central locking lever 3 as pivotable about a pivot axis 10 lever and the anti-theft lever 4 are also designed as pivotable about a pivot axis 11, wherein both the anti-theft lever 4 and the central locking lever 3 with z. B. protrude their end into the sphere of action of the actuator 7. Between the anti-theft lever 4 and the central locking lever 3, the clutch lever 9 is held without further articulation on the motor vehicle door lock 1. The clutch lever 9 is therefore not itself hinged to a housing o. The like. In this case, the clutch lever 9 is initially connected pivotably and displaceably to the locking lever 3. For this purpose, the clutch lever 9 engages with an end-side pin 12 in a slot guide 20 in the central locking lever 3 a. With its opposite end of the clutch lever 9 engages a second pin 13 in a slot recess 14 of the anti-theft lever 4 a. In addition, the clutch lever 9 engages with this coupling pin 13 in a theft deterrent lever 4 associated control receptacle 16 of the actuator 7, so that via the clutch lever 9 of the anti-theft lever 4 with the actuator 7 of the drive unit 5 can be coupled.

The actuator 7 is designed as a rotatable adjusting disc 7, said adjusting disc 7, a first control receptacle 15 for the central locking lever. 3 and a second control receptacle 16 for the anti-theft lever 4 and the clutch lever 9 has. Furthermore, it is indicated that the rotatable adjusting disk 7 is designed as a spring-loaded adjusting disk, which is held in a basic position by means of a return spring 17 in the sense of a "center-zero spring" or is returned to such a basic position after actuation by the drive 6 , This basic position is shown in FIG. The figures also show that the second control receptacle 16 in the adjusting disc 7 as a recess, namely as (arcuate) slot guide 16, is formed, in which the coupling pin 13 of the clutch lever 9 engages. This slot guide 16 is formed in the embodiment as a Z-shaped slot guide or step-like slot guide with two arranged on different radii arcuate guide areas. The first control receptacle 15 in the adjusting disc is designed as an "open" edge-side adjusting recess 15, in which an actuating pin 18 of the locking lever 3 engages.

Of particular importance is now in the context of the invention that the adjusting plate 7 transferred by a first actuation from a basic position in a predetermined first direction of rotation A over a predetermined angle of rotation, the locking lever 3 from the position "unlocked" in the position "locked" wherein the adjusting disk 7 is returned after the first actuation via the return spring 17 in the basic position and that then transferred by a second operation from the basic position in the same first direction of rotation A theft prevention lever 4 from the position "unlocked" in the position "secured". The clutch lever 9 is pretensioned in the course of the first operation of the locking lever 3 via the clutch spring 19. Thus, the clutch spring 19 transfers the clutch lever 19 after returning the adjusting disk 7 in the basic position in an anti-theft lever 4 and the adjusting disc 7 "activated functional position", wherein the anti-theft lever 4 in this activated functional position of the clutch lever 9 in the course of a second operation in the functional position "secured" can be transferred.

The mode of operation of the motor vehicle door lock 1 according to the invention will now be explained with reference to FIGS. 2 to 7:

Fig. 2 shows the arrangement first of all in a "^' basic starting position" in which the central locking lever 3 is in the "unlocked" position and the anti-theft lever 4 in the "unlocked" position. The adjusting disc 7 is located in the returned via the spring 17 basic position. For the purpose of locking the reversible electromotive drive 6 is now energized and the adjusting disc 7 in the first direction of rotation A (counterclockwise) rotated. A comparative examination of FIGS. 2 and 3 shows that in the course of this first actuation a first control edge a of the control recess 15 acts on the central locking lever 3 or its end-side pin 18 and consequently pivots the central locking lever 3 clockwise about the pivot axis 10 and thus transferred him into the functional position "locked". In this functional position of the Zentralver- locking lever 3 is usually the corresponding force action chain, z. B. external actuating chain interrupted or blocked. This is not shown in detail. In Fig. 3 it is further seen that the anti-theft lever 4 does not change its position in the course of the first operation, since the coupling pin 13, which passes through the anti-theft lever 4, can be moved in the associated slot guide 16. However, FIG. 3 shows that by pivoting the central locking lever 3 at the same time, the clutch spring 19 is pretensioned by the clutch lever 9 within the slot guide 20. Due to the positive guidance of the clutch lever 9 in the associated guide 16 of the adjusting disc 7, the clutch lever 9, however, remains essentially in its starting position. After locking, the adjusting disk 7 automatically moves into its position via the return spring 17 Basic position (see Fig. 4). In this basic position, the biased clutch spring 19 can now move the clutch lever 9 in the manner shown within the slot 14 of the anti-theft lever 4, so that now coupled via the clutch lever 9 and the coupling pin 13 of the anti-theft lever 4 with the adjusting disc 7 and thus the Anti-theft device is activated as it were. In this respect, Fig. 4 shows a functional position of the anti-theft lever 4, in which the anti-theft lever is still unlocked, but "activated" is. Starting from this basic position of the adjusting disk in FIG. 4, the adjusting disk can now be rotated again in exactly the same first rotational direction A (counterclockwise) by renewed energization of the electric motor 6. Since the locking lever 3 is already in the locked position, there is no longer any manipulation of the control lever 3. However, a comparative consideration of Fig. 4 and 5 makes it clear that now the anti-theft lock lever 4 by cross-coupling pin 13 rests against the associated control edge b of the slot guide 16 in the adjusting disc 7, so that the anti-theft lever 4 as shown in FIG. 5 in the course of rotation Adjusting disk 7 is pivoted about the pivot axis 11 in the clockwise direction. 5 therefore shows a functional position in which the locking lever 3 is locked in position and the anti-theft lever 4 is secured in the position. Now, the adjusting disk 7 can return to its basic position via the return spring 17. This results from a comparative consideration of FIGS. 5 and 6.

A comparative consideration of Figs. 6 and 7 also makes it clear that now by actuating or rotating the adjusting disc 7 in the opposite direction B, namely clockwise in a single operation, both the locking lever 3 unlocked and the anti-theft lever 4 can be interpreted. For the respectively associated control edges c, d of the second control recess 16 and the first control recess 15 engage now at the associated pin 18 on the locking lever 3 and the coupling pin 13, which also passes through the anti-theft lever 4, to. Via the return spring 17, the adjusting disk 7 then passes from the position shown in FIG. 7 back into the starting position already shown in FIG.

In principle, it is also possible, directly from the functional position according to FIG. 4, to transfer the locking lever 3 back into the unlocked position, in which, starting from FIG. 4, the adjusting disk 7 is moved in the opposite direction of rotation B (clockwise) so that then not as indicated in Fig. 5, in the anti-theft position, but as indicated in Fig. 7, would reach the unlocked and unlocked position.

Claims

claims:

1. Motor vehicle door lock (1) with at least

- a locking mechanism,

a first lever (3),

a second lever (4) and

a drive unit (5) with a z. B. electromotive drive (6) and a rotatable actuator (7),

wherein with the drive (6) via the actuator (7) both the first lever (3) from a first functional position to a second functional position and the second lever (4) from a first functional position can be converted into a second functional position and vice versa, characterized .

in that the first lever (3) and the second lever (4) are connected to one another via a coupling lever (9).

2. Motor vehicle door lock according to claim 1, characterized in that via the coupling lever (9) of the second lever (4) with the actuator (7) of the drive unit (5) can be coupled.

3. Motor vehicle door lock according to claim 1 or 2, characterized in that the coupling lever (9) is pivotally and slidably connected to the first lever (3) and / or to the second lever (4) and / or to the actuator (7).

4. Motor vehicle door lock according to one of claims 1 to 3, characterized in that the coupling lever (9) of at least one z. B. to the first lever (3) connected to the clutch spring (19) is acted upon.

5. Motor vehicle door lock according to one of claims 1 to 4, characterized in that the drive unit (5) as an actuator (7) has a rotatable adjusting disc (7) or a thumbwheel, wherein the adjusting disc (7) at least a first control receptacle (15) for the first lever (3) and a second control receptacle (16) for the second lever (4) and / or the clutch lever (9) up.

6. Motor vehicle door lock according to one of claims 1 to 5, characterized in that the rotatable adjusting disc (7) is designed as a spring-loaded adjusting disc which by means of a return spring (17) in a basic position after actuation by the drive (6) is traceable ,

7. Motor vehicle door lock according to one of claims 1 to 6, characterized in that the actuator or the adjusting disc (7) by a first actuation from a basic position in a predetermined first rotational direction (A) over a predetermined angle of rotation of the first lever (3) the first functional position transferred to the second functional position, wherein the adjusting disc (7) after the first actuation via the return spring (17) is returned to the basic position and then the actuator or the adjusting disc (7) by a second operation from the basic position in preferably the same first rotational direction (A), the second lever (4) transferred from the first functional position to the second functional position.

8. Motor vehicle door lock according to claim 7, characterized in that the clutch lever (9) in the course of the first actuation of the first lever (3) via the clutch spring (19) is biased and that the clutch spring (19) the clutch lever (9) after returning the adjusting disc in the basic position in a second lever (4) with the adjusting disc (7) coupling activated functional position, said second lever (4) in this activated functional position of the coupling lever (9 ) can be transferred to the second functional position in the course of a second actuation.

9. Motor vehicle door lock according to one of claims 1 to 8, characterized in that the second control receptacle (16) in the adjusting disc (7) as a recess, for. B. slot guide is formed, in which a z. B. (the second lever (4) associated) coupling pin (13) of the coupling lever (9) engages.

10. Motor vehicle door lock according to one of claims 1 to 9, characterized in that the first control receptacle (15) in the adjusting disc (7) as a recess, for. B. edge-side adjusting recess, is formed, in which an actuating pin (18) of the first lever (3) engages.

11. Motor vehicle door lock according to one of claims 1 to 10, characterized in that the coupling lever (9), z. B. with a connecting pin (12) or the like in a recess (20), z. B. a slot guide of the first lever (3) engages, wherein the coupling spring (19) the coupling lever (9) or its connecting pin (12) in the region of the recess (20) acted upon.

12. Motor vehicle door lock according to one of claims 1 to 11, wherein the first lever as a locking lever (3), z. B. Zentralveπiegelungshebel, is formed, the first functional position, the position "unlocked" and the second functional position is the position "locked" and that the second lever is designed as anti-theft lever, the first functional position the position is "theft-proof" and its second functional position is the position "theft-proof".