WO2014177126A1

WO2014177126A1 - Motor vehicle door lock

Info

Publication number: WO2014177126A1
Application number: PCT/DE2014/000202
Authority: WO
Inventors: Thorsten Bendel; Uwe Reddmann; Carsten Fuchs
Original assignee: Kiekert Aktiengesellschaft
Priority date: 2013-05-03
Filing date: 2014-04-17
Publication date: 2014-11-06
Also published as: DE102013104566A1

Abstract

The invention relates to a motor vehicle door lock equipped with a locking unit (1) having a locking power take-off element (2), and equipped with an anti-theft unit (3) having an anti-theft power take-off element (4). Both power take-off elements (2, 4) are designed to be movable in relation to one another with respect to a common reference element (5). According to the invention, the locking power take-off element (2) and the anti-theft power take-off element (4) are configured such that they can be selectively coupled together/uncoupled mechanically in order to adopt pre-defined functional states of a compound lever mechanism.

Description

Motor vehicle door lock

Description:

The invention relates to a motor vehicle door lock, with a locking unit with locking output element, and with an anti-theft device with anti-theft output element, wherein both output elements are designed to be relatively movable relative to each other with respect to a common reference element.

Motor vehicle door locks are typically equipped with a locking unit and in particular a central locking unit and additionally an anti-theft unit in practice. About the locking unit and in particular central locking unit functional states such as "unlocked" or "locked" of the motor vehicle door lock or an associated lever mechanism can be adjusted. In the state "locked" is regularly an external operating lever on an associated motor vehicle door empty, whereas the opening of an associated locking mechanism as part of the motor vehicle door lock from the interior of the motor vehicle forth, for example with an internal operating lever, is still possible.

In order to prevent an internal operation as well, the anti-theft unit in the position "anti-theft on" ensures that the inside operating lever is also transferred to its inoperative state. In other words, for example, a person in the motor vehicle can not open the associated motor vehicle door in this functional state.

In order optionally to set an external operating lever chain and possibly additionally an internal operating chain as part of the lever mechanism in the motor vehicle door lock ineffective, the procedure is such that a respective clutch lever in the associated lever chain or lever lever chain in the position "engaged" or "disengaged" is transferred, namely with the help of the locking unit or the theft deterrent

CONFIRMATION COPY insurance unit. The functional position "engaged" of the clutch lever then corresponds to the associated operating lever chain is effective, whereas the functional state "disengaged" of the clutch lever pulls an ineffective lever chain. The clutch lever or the coupling element is in each case acted upon by the locking output element or the anti-theft output element. For the basic mode of operation, reference is made by way of example to DE 196 32 781 C2 of the Applicant. Corresponding positioning movements on the output elements are exerted by means of an associated motor or electric motor. In particular, this is a locking motor or an anti-theft motor. - Such a procedure has proven itself in practice in principle, but it should be noted that the locking output element typically performs or perform large travel to perform, for example, in addition to the application of the clutch lever in the example for a visible display. Among other things, this can be designed such that locking buttons mounted on the motor vehicle doors in the "unlocked" state assume a raised position relative to a door trim, where the position "locked" corresponds to a recessed position.

Compared to the locking unit or central locking unit requires an anti-theft device with associated anti-theft-driven element only small positioning movements. As described, these correspond to the fact that, for example, a clutch lever in the inner actuating lever chain is optionally engaged or disengaged. The engaged position belongs to the functional position "anti-theft device off", whereas the disengaged position and consequently an idle operation of the internal operating lever mechanism belongs to the functional position "anti-theft device on".

In practice, and also in the already mentioned DE 196 32 781 C2, separate motors or electric motors are used for the realization of the locking unit or anti-theft unit, namely a locking motor and an anti-theft motor. In conjunction with an additionally provided mostly Elektrokomponententräger for mechanical recording and electrical wiring of the engines in question and optionally additional switches or sensors resulting from a relatively bulky structure. In addition, such electronic component carrier are usually expensive, the production costs even increase with increasing expansion of the Elektrokomponententrenträger.

Examples of such electronic component carriers are described, inter alia, in DE 10 2008 015 627 A1 of the Applicant. A motor vehicle door lock with locking unit with locking output element and anti-theft device with anti-theft output element is explained for example in DE 43 43 340 C2 of the Applicant. This is about a centrally controlled locking device for motor vehicle doors, which works with a reversible electric motor drive with output element with eccentric control pin. The control pin engages in a fork receptacle of a lever element, which belongs to the central locking lever or acts on this. In addition, located in the region of the output element and the control pin, a lever element of an anti-theft lever. In this way, you have already tried to get along with a simple electromechanical drive and at the same time to realize a compact design.

In a generic motor vehicle door lock according to DE 10 2006 053 178 A1, a first and a second output gear are realized. Between the two driven wheels at least one movement transfer provided, which allows a temporary relative movement. With the known device for actuating a locking mechanism can be various functional position such as "unlocked" or "locked" up to the lock function "theft-proof" implement. However, there is still potential for improvement with regard to functional reliability and a compact design. This is where the invention starts.

The invention is based on the technical problem of further developing such a motor vehicle door lock in such a way that perfect functional reliability is combined at the same time with a compact and cost-effective as well as weight-optimized design.

To solve this technical problem, a generic motor vehicle door lock within the scope of the invention is characterized in that the locking output element and the anti-theft output element for taking predetermined functional states of a lever mechanism are formed with each other mechanically coupled / decoupled.

The locking output element and the anti-theft output element can be adjustable with respect to a common axis of rotation pivot segments. The common axis of rotation in this case represents the matching reference element for the two output elements, with respect to which they are designed to be relatively movable relative to one another.

In general, the pivot segments are formed as respective circular disc segments. In addition, on the one hand the locking output member and on the other hand, the anti-theft-driven element to different large pivot segments and in particular circular disc segments correspond.

In the event that each circular disc segments are realized, the overall interpretation is such that the two circular disc segments together do not describe a full circle or a gap between them remains, so that the already mentioned relative mobility to each other with respect to the reference element or the axis of rotation in Example is given unchanged.

The two pivot segments or circular disc segments are generally designed in each case as Zahnradkreisscheibensegmente. In this way, the associated drive unit, that is to say the locking unit or theft-proof unit with the associated locking motor-specific anti-theft engine, can work directly on the circular disk segment in question. For this purpose, the respective motor has on its output shaft via an associated worm shaft, which meshes with the peripheral gear of the associated Zahnradkreisscheibensegmentes. Depending on the direction of rotation of the electric motor, d. H. of the lock motor and the anti-theft motor, respectively, the gear wheel disc segment interacting with the associated motor may make a clockwise or counterclockwise movement with respect to the common axis of rotation.

The overall design is such that the locking motor interacts with the locking output member and the anti-theft engine with the anti-theft output member each. As a result, the associated output elements can be controlled independently of each other and at least the functional states "unlocked", "locked" and "theft protection on" and finally "theft protection off" of the lever mechanism can be implemented and defined. In addition, the Design made such that the anti-theft device output element in the position "anti-theft on" at least partially overlaps with a travel of the locking output element. As a result of this overlap, it is possible for the locking output element and the anti-theft output element optionally to be mechanically coupled / decoupled with one another. In fact, this coupling / decoupling can be done on the said travel on which the anti-theft output member and the lock output member overlap. In detail, the design is such that the anti-theft device output element in the position "anti-theft device on" by means of the locking motor via the mechanically coupled locking output element for taking the position "anti-theft from" can be acted upon. That is, the anti-theft position of the anti-theft output member can be released via the interlocking motor and, in particular, the central locking engine, by its corresponding impingement, as it were, with the anti-theft output member. At the end of this loading, the anti-theft device has left its original position "anti-theft on" and now assumes the "anti-theft" function.

For this purpose, the locking output element has been previously mechanically coupled to the anti-theft drive element. This can simply be implemented by the fact that the anti-theft drive output element and the locking output element are mechanically moved towards each other and abut each other or abut each other with at least partial positive engagement. An application of the locking output element by means of the locking motor then leads to the anti-theft drive element being "taken along" as described, in order to remove it from its original position "anti-theft device". This is of course only to be understood as an example, and the invention covers other functional transitions in principle, irrespective of this, the transition from the position "anti-theft device on" to the position "anti-theft device Alternatively, or in addition, the anti-theft device acting on the anti-theft device drives a corresponding drive or an adjustment as a further and, as it were, third option, the interlocking output element and the anti-theft output element can be used independently Such mechanical loading can take place, for example, with the aid of a lock cylinder, which transfers the locking output element from its "unlocked" position into the "locked" position and vice versa.

In addition, a mechanical loading of the respective output element by means of an actuating lever and in particular an internal operating lever is possible. Thus, it is conceivable that the locking output element is transferred from the "locked" position to the "unlocked" position via the internal actuating lever in question. That is, in this case, the operating lever - regardless of the locking motor - ensures that the locking-driven member is applied accordingly.

Finally, other mechanical solutions are conceivable. For example, the anti-theft drive element can be pivoted mechanically with the aid of a sliding nut. Similar to a parental control pusher, this pusher may ensure that the anti-theft device will perform its "anti-theft" and "anti-theft" functions. occupies. For this purpose, the pommel in question interacts with the theft deterrent output element in a corresponding manner.

In any case, there are many opportunities to act on the output elements. In addition, the output elements are designed to be particularly compact as toothed wheel disk segments with a common axis of rotation and, taken together, cover and describe a common circular surface or disk surface. As a result, a particularly compact design is already provided.

A further factor contributing to this is the fact that the two motors, that is to say the locking motor and the anti-theft motor, typically engage tangentially with their respective output shafts and the worm shafts thereon on the respective gear wheel disc segment. In addition, the design is usually made so that the two worm shafts are regularly diametrically opposed with respect to the central axis of rotation, so that very little construction volume is claimed. As a result, the electric motor carrier receiving the two motors can also be made small and inexpensive. Because the two engines are arranged closely adjacent to each other. As a result, at the same time the weight of the thus-equipped motor vehicle door lock decreases, which is to be judged to be particularly positive in view of a general tendency for weight reduction of vehicle components. Here are the main benefits.

In the following the invention will be explained in more detail on the basis of a drawing representing only an exemplary embodiment, in which: 1 shows the Kraftfahrzeugtürversphluss reduced to the essential elements in the functional position "anti-theft from" and (central) lock "unlocked", Fig. 2 shows the object of Figure 1 in the position "anti-theft from" and "locked",

3 shows the object according to FIGS. 1 and 2 in the functional position "anti-theft device on" and "locked",

Fig. 4 the object in question in the position "anti-theft on" and "unlocked" and

Fig. 5 shows the article of FIG. 4 in the position "theft protection off" and "unlocked".

In the figures, a motor vehicle door lock is shown, which only shows the essential features of the invention. The motor vehicle door lock in question has a not explicitly shown locking mechanism and additionally also not shown lever mechanism. The design and arrangement may be similar to that described in DE 43 43 340 C2 or DE 196 32 781 C2. On the lever mechanism operate on the one hand a locking unit 1 with associated locking output element 2 and on the other hand an anti-theft unit 3 with corresponding anti-theft Abtriebsele- ment 4. The locking unit 1 and the locking output element 2 is in the embodiment to a central locking unit 1 and accordingly a Central locking output element 2.

It can be seen that the respective units 1 and 3 consist of a locking motor 1a, on the one hand, arranged on its output shaft On the other hand, the worm shaft 1b and the anti-theft motor 3a are assembled with the worm shaft 3b arranged on its output shaft. The respective worm shaft 1 b, 3 b engages in an outer peripheral gearwheel of the locking output element 2 or anti-theft output element 4 designed as a respective pivot segment or circular disk segment and in particular a gear wheel disk segment.

The two output elements 2, 4 can be mechanically coupled / decoupled to take predetermined functional states of the lever mechanism, not shown, either. In addition, the two output elements 2, 4 can be moved relative to each other, with respect to a common reference element 5. The common reference element 5 is a common axis of rotation 5 of the two gear wheel disc segments 2, 4 in the example case. The Zahnradkreisscheibensegmente 2, 4 have a common radius.

In fact, the two Zahnradkreisscheibensegmente 2, 4 are rotatably mounted about the common axis of rotation 5. In addition, the two Zahnradkreisscheibe segments 2, 4 describe a common circular area. In addition, it can be seen on the basis of a comparative examination of FIGS. 1 to 5 that the anti-theft drive output element 4 is larger than the locking output element 2 is formed. Both driven elements 2, 4 together do not describe a full circle or a full-surface circular disk. Rather, at this point remains a disk-segment-like space 6, so that the two output elements 2, 4 or Zahnradkreisscheibensegmente 2, 4 can perform the described relative movement to each other with respect to the common axis of rotation 5.

The free space 6 is composed according to the embodiment of two partial free spaces 6a and 6b. The partial free space 6a belongs to a mechanical actuation on the part of an internal operating lever, whereas the free space 6b corresponds to a motor actuation of the locking output element 2 by means of the locking motor 1a, as will be explained in more detail below. Furthermore, both free spaces 6a, 6b can also be jointly swept together by the inner operating lever on the one hand and the locking motor 1a on the other hand.

As already explained, the locking output element 2 and the anti-theft output element 4 for taking predetermined functional states of the lever mechanism are formed with each other mechanically coupled / decoupled. The mechanical coupling corresponds to the fact that the two output elements 2, 4 abut one another with an edge. The decoupling belongs to the fact that a respective free space 6a or 6b between the two output elements 2, 4 is observed.

The operation is as follows. 1, the motor vehicle door lock is there in the position "anti-theft device off" and "unlocked" the locking unit or central locking unit 1. Now starting from this functional position of FIG. 1, the locking unit 1 or central locking unit 1 in their position "locked", the central locking unit 1 and the locking motor 1a is energized so that via the worm shaft 1b the hereby meshing Zahnradkreisscheibe segment 2 is applied so that it is about 70 to 80 ° counterclockwise to the Rotary shaft 5 rotates.

At the end of this movement, the functional position according to FIG. 2 "anti-theft from" and "locked" is reached. During this process, the locking output element 2 has, as it were, swept over the two free spaces 6a, 6b on its associated travel s. Both free spaces 6a, 6b can either be motorized by means of the locking motor 1a or else be swept over mechanically by means of the internal actuating lever or the locking output element 2 can be acted upon accordingly.

As a result, the anti-theft output member 4 has retained its position in FIG. 2 as compared to the operative position of FIG. 1 "off." In contrast, the locking output element 2 has been transferred from the "unlocked" position according to FIG. 1 into the "locked" position according to FIG. 2 by motor and / or mechanically. As a result, the two output elements 2, 4 work on the relevant lever mechanism such that only one inside operating lever chain can work on the locking mechanism in the sense of opening the associated motor vehicle door. On the other hand, the outside operating lever chain is not effective.

If, starting from the position "anti-theft device" and "locked" according to FIG. 2, the anti-theft device is additionally inserted, the functional state results in the following FIG. 3. In order to achieve this functional state according to FIG the anti-theft motor 3a energized accordingly, so that the associated worm shaft 3b, the Zahnradkreisscheibensegment segment 4 pivoted about 30 to 40 ° about the rotation axis 5 in the counterclockwise direction until the functional position of FIG. 3 is reached. Then, the anti-theft output member 4 is in the position "anti-theft on" while the interlock-driven member 2 still maintains its "locked" position. That is necessary and desired. In this functional position, both the inner operating lever chain and the outer actuating lever chain become empty.

If, starting from FIG. 3, the anti-theft device is to be transferred into its "off" position according to FIG. 5, then it is first necessary for the locking output element 2 to assume its "unlocked" position or, respectively, in FIG this functional position is transferred. For this purpose, in the exemplary embodiment according to FIG. 4, the inner actuating lever operates on the locking driven element 2 in the direction of the functional position "unlocked", which corresponds to a clockwise movement of the locking driven element 2 with respect to the axis of rotation 5. In this process, the locking output element 2 comes to rest on the anti-theft drive output element 4, which still assumes its "anti-theft off" position in FIG. 4. That is, the lock output member 2 and the anti-theft drive member 4 are mechanically coupled to each other by abutting each other.

This mechanical coupling is now used according to the invention that the anti-theft drive output element 4 occupies a predetermined functional state of the lever mechanism, in this case the lever mechanism is transferred to the position "anti-theft from" according to FIG. 5. For this purpose, it is only necessary that the anti-theft output element 4 is transferred by means of, for example, the inner operating lever to the position "anti-theft from" according to FIG. 5. Alternatively or additionally, however, the locking motor 1a, the locking output element 2 act accordingly, so that this pivots the fitting anti-theft drive output element 4 clockwise so that in the end the functional position of Fig. 5 "anti-theft from" is taken. Finally, for the transition from FIG. 4 to FIG. 5, the already mentioned switching nut or another mechanical actuating element can work on the locking output element 2 such that it "carries along" the theft deterrent output element 4, namely in a clockwise direction in the sense of a rotation about the axis of rotation 5 until, starting from FIG. 4, the position according to FIG. 5 "anti-theft device" is reached. Then there is the Motor vehicle door lock or its lever mechanism again in the starting position "theft protection off" and "unlocked", as has already been described with reference to FIG. That is, the anti-theft output member 4 can be at least in the position "anti-theft on" by means of the locking motor 1a act on the mechanical coupled locking output element 2 to take the position "anti-theft from". Alternatively or additionally, a corresponding loading of the anti-theft drive output element 2 by means of the anti-theft motor 3a is possible and conceivable. Likewise, both output elements 2, 4 can be acted upon mechanically as described.

The respective assumed position of the individual output elements 2, 4 may correspond in the example to a mechanically connected to the respective Zahnradkreisscheibensegment 2, 4 clutch lever of the inner lever chain or external actuating lever chain or a common clutch central lever the previously described positions "engaged" or " disengaged "occupies. Typically, the "engaged" position of the clutch lever in question corresponds to the actuating lever mechanism being operative and thus corresponding to the "unlocked" or "anti-theft off" position, respectively. In contrast, the position "disengaged" of the coupling lever in question generally means that the locking unit 1 is in its "locked" position or the anti-theft unit 3 is in its "anti-theft position" position.

Claims

claims:

A motor vehicle door lock, comprising a locking unit (1) with locking output element (2), and an anti-theft unit (3) with anti-theft output element (4), wherein both output elements (2, 4) relative to each other with respect to a common reference element (2) 5), characterized in that the locking output element (2) and the anti-theft output element (4) are designed to be mechanically coupled / decoupled with one another to assume predetermined functional states of a lever mechanism.

2. Motor vehicle door lock according to claim 1, characterized in that the locking output element (2) and the anti-theft output element (4) as in relation to a common axis of rotation (5) as a reference element (5) adjustable pivot segments (2, 4) are formed ,

3. Motor vehicle door lock according to claim 2, characterized in that the pivot segments (2, 4) are designed as respective circular disc segments (2, 4).

4. Motor vehicle door lock according to one of claims 1 to 3, characterized in that the locking output element (2) and the theft Isicherungs output element (4) to different sized pivot segments (2, 4) and in particular circular disc segments (2, 4) correspond.

5. Motor vehicle door lock according to claim 3 or 4, characterized in that the two circular disc segments (2, 4) each as a Zahnradkreisscheibensegmente (2, 4) are formed.

6. Motor vehicle door lock according to one of claims 1 to 5, characterized in that a locking motor (1a) interacts with the locking output element (2) and an anti-theft engine (3a) with the anti-theft output element (4).

7. Motor vehicle door lock according to one of claims 1 to 6, characterized in that the anti-theft drive element (4) is larger than the locking output element (2) is formed.

8. Motor vehicle door lock according to one of claims 1 to 7, characterized in that the anti-theft output element (4) in position "anti-theft one" overlaps at least partially with a travel of the locking output element (2).

9. Motor vehicle door lock according to claim 8, characterized in that the anti-theft output element (4) in position "anti-theft on" by means of the locking motor (1 a) via the mechanically coupled locking output element (2) and / or by means of the theft fuses -Motors (3a) to take the position "anti-theft from" can be acted upon.

10. Motor vehicle door lock according to one of claims 1 to 9, characterized in that the locking output element (2) and the anti-theft drive element (4) independently of the respective motor (1a, 3a) are mechanically acted upon, for example by means of a lock cylinder, an actuating lever , in particular, inner operating lever, a shift nut, etc.