WO2016078638A1

WO2016078638A1 - Motor vehicle door lock

Info

Publication number: WO2016078638A1
Application number: PCT/DE2015/100418
Authority: WO
Inventors: Armin Handke; Uwe Reddmann; Thorsten Bendel
Original assignee: Kiekert Ag
Priority date: 2014-11-18
Filing date: 2015-10-08
Publication date: 2016-05-26
Also published as: DE102014116885A1

Abstract

The invention relates to a motor vehicle door lock which is equipped with a locking mechanism (3, 4), a drive (9, 10, 11) and at least one locking element (15). According to the invention, the drive (9, 10, 11) works optionally with the locking mechanism (3, 4) and/or the locking element (15). To this end, the drive (9, 10, 11) interacts with at least one interchangeable intermediate element (7, 12).

Description

Motor vehicle door lock

Description:

The invention relates to a motor vehicle door lock, with a locking mechanism, furthermore with a drive and with at least one locking element.

As usual, the locking mechanism consists of a catch and a pawl. The drive is generally an electric motor optionally with associated output elements. The locking element is usually designed as a central locking element and provides in this context for a central locking of all belonging to a motor vehicle door closures.

In the generic state of the art according to DE 10 2004 055 810 A1 a motor vehicle door lock is described, which is equipped with an anti-theft drive, a locking drive and additionally an opening device for the motorized opening of the locking mechanism. The thief-steel safety drive or the locking drive work on the locking device for the locking mechanism. The overall design is such that the anti-theft device drive and / or an associated anti-theft chain and the locking drive and / or an associated locking chain are mechanically and / or electrically / electronically coupled such that the locking drive and / or the locking chain the anti-theft drive and / or block the anti-theft chain in its "locked" position.

In this way, the overall design effort is to be reduced while improving comfort. However, several drives are still needed. As a result, the associated mechanical elements, in this case the anti-theft chain and the locking chain, designed separately and must be mounted independently. This is complicated and inflexible. This is where the invention starts.

The invention is based on the technical problem of developing such a motor vehicle door lock so that the design effort is reduced and different lock functions can be flexibly realized.

To solve this technical problem, a generic motor vehicle door lock in the invention is characterized in that the drive operates selectively on the locking mechanism and / or the locking element and interacts with at least one interchangeable intermediate element. In the context of the invention, the drive is thus used for different functions. First of all, the drive can work on the locking mechanism and in this context, for example, act as an opening drive. Such an opening drive allows an opening of the locking electromotive ("electric opening").

For this purpose, the drive operates indirectly on a pawl of the usually composed of the catch and pawl locking mechanism. In fact, a release lever is usually realized here, which is acted upon by an opening intermediate element, which in turn interacts with the drive. As a result, the pawl is lifted from the catch and can open (possibly spring assisted). A locking bolt previously caught in the inlet mouth of the catch comes free. Accordingly, an operator may immediately issue an associated motor vehicle door following the described "electrical opening".

The electrical opening process of the locking mechanism can not be implemented in a motor vehicle in a restrictive manner in conjunction with a keyless entry device the associated motor vehicle door lock is unlocked or unlocked, so that, as described, electrical opening of the locking mechanism is possible at the end, thereby achieving particular advantages in terms of comfort. In addition to this electrical opening by means of the drive, the drive according to the invention and in principle can also work on the locking mechanism in the sense that a closing function is realized. In this case, the drive ensures that, for example, in the case of a catch which is in the pre-engaged position, the rotary latch is pulled in until it has reached its main latching position. For this purpose, the drive may work on another intermediate element, this time a closing intermediate element. As already explained, the respective intermediate element is made interchangeable, so that the described functionalities can optionally be realized and implemented. That is, for example, built-in opening intermediate element, the locking mechanism can be opened electrically using the drive. If, alternatively or additionally, the closing intermediate element is realized and mounted, alternatively or additionally a servo lock as described is possible. The drive can not only work selectively on the locking mechanism, but alternatively or additionally on the locking element. Since the locking element is typically a Zentralvernagungselement, the drive acts in this case as a central locking drive. With the aid of the central locking drive, for example, a locking intermediate element can be acted upon, which in turn interacts with the locking element or central locking element in the example case. The locking element or central locking element may ensure that, for example, in the "locked" position, an inner locking button on the associated motor vehicle door is transferred into the locked and lowered position typically, an associated exterior door handle will be depleted when acted on by the operator, whereas the interior door handle will generally still be functional and serve or may serve to open the lock.

According to the invention, therefore, a (single) drive is used, which supports or realizes different functionalities or several functionalities depending on the respectively selected intermediate element. Here are the individual intermediate elements, in this case the locking intermediate element, the Opening intermediate element or the closing intermediate element designed to be interchangeable in the example, so that depending on the built intermediate element or depending on several installed intermediate elements, the desired functionality or the plurality of functionalities using the inventive motor vehicle door lock can be displayed. Consequently, the motor vehicle door lock acts like a kind of system building boxes.

In this way, the assembly can be simplified as well as the storage and also any repair. Because in addition to the quasi-fixed structural elements of the motor vehicle door lock according to the invention, namely the locking mechanism, the drive and the at least one locking element, the one or more intermediate elements can optionally install to implement the desired functionality or the multiple functionalities and to realize. In this way, a particularly efficient automated production can be achieved, for example, on a production line. In addition, the replacement of only a few components offers the option of being able to realize one or more desired functionalities. Here are the main benefits.

The interchangeable intermediate element can not only serve to display a functionality and be set up, but can also be used to represent multiple functionalities. For example, the intermediate element can be designed as a combined opening and locking intermediate element. In addition, it has proven in this context, when the intermediate element is designed as an intermediate lever rotatable about an axis.

As a rule, several intermediate elements are used. In most cases, at least one further second intermediate element is provided in addition to the first intermediate element. In this case, the two intermediate elements can be used to represent different functionalities as well as to realize one and the same functionality. In any case, it has been proven that the first and the second intermediate element are rotatably mounted coaxially on the common axis. This simplifies assembly. For this it is only necessary to mount the first intermediate element on the axle. If the additional functionality that can be realized with the second intermediate element is desired, it is only necessary to fix the second intermediate element on the common axis. In this case, the first intermediate element acts as a basis for the attachment and storage of the second intermediate element on the respective first intermediate element.

It is particularly advantageous if the second intermediate element is rotatably coupled to the first intermediate element. For this purpose, the second intermediate element may be rotatably coupled to a pin which rests on the first intermediate element. This can be realized particularly preferably outside of a lock housing. For this purpose, the lock housing may have a recess which is accessible to the outside and allows the optional attachment of the second intermediate element.

For the drive of the intermediate element, the invention usually falls back on a drive wheel, which generally meshes with an output worm of an electric motor as a drive. It is also possible that the drive both intermediate elements, that is, the first intermediate element and the second intermediate element acted upon together or separately. In the case of a common application, the first and the second intermediate element are generally coupled to one another in a rotationally fixed manner. Of course, this is only an example.

The drive wheel is generally a toothed wheel, which meshes on the one hand with the output wheel acted upon by the electric motor and, on the other hand, with the intermediate element, generally with the first intermediate element. In this way, the electric motor can finally put the first intermediate element in rotation about the axis via the output gear and the drive wheel. If the second intermediate element is non-rotatably mounted on the first intermediate element, the second intermediate element can also be rotated in this way about the common axis. It is also possible, depending on the direction of rotation (clockwise / counterclockwise) to distinguish between different functionalities. For example, a counterclockwise rotation of the first intermediate element and consequently also of the second intermediate element may belong to the functionality "electrical opening." In contrast, the clockwise rotation corresponds to the functionality "locking / unlocking." This is of course not restrictive. As a result, a motor vehicle door lock is provided, which is characterized by a particularly inexpensive and flexible installation. Depending on the desired functionality, the - only - drive works either on the locking mechanism or the locking element or central locking element. In this way, functional states such as "electrical opening", "locking", "unlocking" but also "servo-closing" can be realized and implemented. This ultimately depends on which of the various interchangeable intermediate elements between the drive and the locking mechanism or the locking element is mounted. Here are the main benefits.

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 in a perspective overview and

Fig. 2 shows the motor vehicle door lock in a detailed view.

In Fig. 1, a motor vehicle door lock is shown, which is equipped as usual with a metallic lock case 1 and a plastic housing or a plastic hood 2. In lock case 1, a locking mechanism 3, 4 is mounted. The locking mechanism 3, 4 is composed of a rotary latch 3 and an interacting pawl 4, which can be seen in detail in FIG. In addition, the plastic housing or lock housing 2 has a recess 17 which will be described in more detail below. The remaining components of the motor vehicle door lock according to the invention are in contrast mounted and arranged in the plastic housing or lock housing 2. At this point, one first recognizes a release lever 5, which lifts the pawl 4 from the rotary latch 3 at an indicated clockwise rotation about its axis 6, so that the rotary latch 3 can open spring-assisted. In order to rotate the release lever 5 in the described clockwise direction about its axis 6, the release lever 5 is acted upon in the embodiment of an intermediate element 7.

The intermediate element 7 is designed as a rotatable intermediate lever 7 and pivotally mounted about an axis 8 in the lock housing 2. Corresponding pivoting movements of the intermediate element or intermediate lever 7 are effected by means of a drive 9, 10, 1 1.

In fact, the drive 9, 10, 1 1 is composed of an electric motor 9 and an output worm 10 connected to an output shaft of the electric motor 9. The output worm 10 meshes with a drive wheel 1 1. For this purpose, a worm gear of the output worm 10 and an outer ring gear 1 1 a of the drive wheel 1 1 are engaged with each other. In contrast, engages an inner ring gear 1 1 b in a toothing on the intermediate element 7 a.

In addition to the intermediate element or first intermediate element 7 can be seen still another second intermediate element 12, which is also designed as an intermediate lever 12. The second intermediate element 12 is mounted on the first intermediate element 7, namely coaxially with respect to its axis or axis of rotation 8. In fact, the second intermediate element 12 is rotatably connected in the embodiment with the first intermediate element 7 and rotatably on a pin 8 defining the axis 13 attached, which rests on the first intermediate element 7.

Connected to the second intermediate element 12 is still a slider 14, which operates on a locking element 15. The locking element 15 is a central locking element 15. In the context of the embodiment and of particular importance is the fact that the drive 9, 10, 1 1 operates selectively on the locking mechanism 3, 4 and / or the locking element 15. In order to achieve this, the drive 9, 10, 1 1 interacts with the first intermediate element 7 or the first intermediate element 7 in conjunction with the second intermediate element 12. In this way, functionalities such as "electrical opening" can be realized as well as "locking / unlock ". This will be explained in more detail below. In order to realize the respective desired functionality, for example "electrical opening" or "locking / unlocking" in detail, the intermediate elements 7, 12 and also the slide 14 are each exchangeable elements 7, 12, 14. Depending on the desired Functionality is the associated intermediate element 7, 12 or 7, 12 and 14 are used. The replacement of the intermediate element 12 can be realized from the outside, that is from outside the lock housing 2. For this purpose, the initially described recess 17 is provided. The recess 17 in the lock housing 2 is adapted to the intermediate element 12 and its movements. In fact, the first intermediate element 7 is an opening intermediate element 7, which at the same time also assumes a locking function. Consequently, the first intermediate element 7 acts as a locking and opening intermediate element 7. In contrast, the second intermediate element 12 is designed as a pure interlocking intermediate element. Not shown is the further possibility to realize an additional closing intermediate element, with the help of which via the drive 9, 10, 1 1, a servo-closure of the locking mechanism 3, 4 can be achieved.

It can be seen that in the exemplary embodiment only the single illustrated drive 9, 10, 11 is used both for the realization of the functionality "electrical opening" and for the functionality "locking / unlocking". For this purpose, the drive in question 9, 10, 1 1 works in the exemplary embodiment on the first intermediate element 7, which is designed as a combined opening and locking intermediate element 7. In this way, the lock 3, 4 by means of the drive 9, 10, 1 1 are electrically opened. For this is the further intermediate element 12 is not required and therefore unnecessary. The same applies to the slider 14.

For the realization of the functionality "electrically opening", it is only necessary that the drive 9, 10, 1 1 acts on the drive wheel 1 1 in the clockwise direction as a result of which the first intermediate element 7 moves in the indicated counterclockwise direction and acts on the release lever 5 on the associated one As a result, the release lever 5 is pivoted about its axis 6 in the clockwise direction, as indicated, and in this way can lift the pawl 4 away from the rotary catch 3.

If in addition the functionality "locking / unlocking" is to be realized, the likewise exchangeable second intermediate element 12 is rotationally fixedly mounted on the first intermediate element 7 or the spigot or hollow spigot 13. As a result, the spool 14 connected to or connectable to the second intermediate element 12 can interact with the locking element 15.

The function "unlocking / locking" now corresponds to the fact that the drive 9, 10, 1 1, the first intermediate member 7 is not acted counterclockwise as the functional position "electrical opening", but rather clockwise. This indicates another arrow. Rather, this clockwise rotation of the first intermediate element 7 ensures that the rotatably coupled to the first intermediate element 7 second intermediate element 12 is also rotated in a clockwise direction about the common axis 8.

As a result, the slide 14 interacts with the locking element or central locking element 15 via a pin 16. The clockwise outermost position of the second intermediate element 12 corresponds to the position "locked." In contrast, the functional position shown in FIG. 2 belongs to the position "unlocked". , Starting from the position "unlocked" shown in FIG. 2, a loading of the first intermediate element 7 in the counterclockwise direction leads to the already described "electrical opening". This corresponds to the desired and usual functionality, namely that the motor vehicle door lock, for example, starting from the functional position "locked" must first assume the position "unlocked" before any "electrical opening" is possible and permitted.

Claims

claims

1 . Motor vehicle door lock with a locking mechanism (3, 4), furthermore with a drive (9, 10, 11) and with at least one locking element (15), characterized in that the drive (9, 10, 11) is optionally open the locking mechanism (3, 4) and / or the locking element (15) works and interacts with at least one interchangeable intermediate element (7, 12).

2. Motor vehicle door lock according to claim 1, characterized in that depending on the desired functionality, the associated intermediate element (7, 12) is used, for example, a locking intermediate element (7, 12), an opening intermediate element (7), a closing intermediate element Etc..

3. Motor vehicle door lock according to claim 1 or 2, characterized in that the intermediate element (7) is arranged to represent a plurality of functionalities, for example, as a combined opening and locking intermediate element (7) is formed.

4. Motor vehicle door lock according to one of claims 1 to 3, characterized in that the intermediate element (12) as about an axis (8) rotatable intermediate lever (7, 12) is formed.

5. Motor vehicle door lock according to one of claims 1 to 4, characterized in that in addition to the first intermediate element (7) at least one further second intermediate element (12) is provided.

6. Motor vehicle door lock according to claim 5, characterized in that the first intermediate element (7) and the second intermediate element (12) are mounted gleichachsachsig on the common axis (8) rotatable.

7. Motor vehicle door lock according to claim 5 or 6, characterized in that the second intermediate element (12) rotatably coupled to a on the first intermediate element (7) upstanding pin (13) and preferably outside a lock housing (2) is arranged.

8. Motor vehicle door lock according to one of claims 5 to 7, characterized in that the second intermediate element (12) has a connected slide (14) for acting on the locking element (15).

9. Motor vehicle door lock according to one of claims 1 to 8, characterized in that the intermediate element (7, 12) with a drive from the (9, 10, 1 1) acted upon drive wheel (1 1) meshes.

10. Motor vehicle door lock according to claim 9, characterized in that the drive wheel (1 1) with an output worm (10) of the drive (9, 10, 1 1) meshes.