WO2013139324A1

WO2013139324A1 - Motor vehicle door lock

Info

Publication number: WO2013139324A1
Application number: PCT/DE2013/000151
Authority: WO
Inventors: Thorsten Bendel; Claus Töpfer
Original assignee: Kiekert Aktiengesellschaft
Priority date: 2012-03-20
Filing date: 2013-03-16
Publication date: 2013-09-26
Also published as: JP6221102B2; CN104204386A; RU2014136067A; JP2015515560A; KR102017927B1; MX2014011176A; CN104204386B; IN2014DN07423A; EP2828456B1; CA2865309A1; EP2828456A1; DE202012002853U1; KR20140139542A

Abstract

The invention relates to a motor vehicle door lock comprising an actuation/locking lever mechanism (1, 2), with a first lever (1) and a second lever (2), both levers (1, 2) being couplable with each other in at least two different relative positions. At least the one, first lever (1) comprises a detent spring (5) connected thereto for cooperation with at least one detent contour (6) on the other, second lever (2).

Description

Power tool lock

Description:

The invention relates to a motor vehicle door lock, with an actuation lever mechanism having a first lever and a second lever, wherein both levers can be coupled to one another in at least two different relative positions.

In the prior art according to DE 23 55 556 A is worked in a motor vehicle door lock with a locking mechanism which has a forceps trap with two latch arms. The two trap arms are each mounted on bolts. In addition, a spring is provided, which is supported by the two bolts of the latch arms.

In the generic state of the art according to DE 89 16 180 U1 two levers, namely a clutch lever and an actuating lever are coupled together, in different relative positions. A relative position corresponds to the engaged state, while another relative position belongs to the disengaged state. This has proven itself in principle. However, the known solution is kinematically quite complex and hardly suitable for other applications. Because the change of the clutch position is achieved by a Doppelhubbetätigung.

In motor vehicle door closures of a newer type, which are equipped with a so-called quick-release function, this quick-locking function ensures that the actual and motor-driven unlocking process is shortened, for example in the course of the so-called "keyless entry" function whose help the operating lever chain directly into the

unlocked state is transferred, or a previously interrupted mechanical connection to the release lever is made (see DE 10 2005 043 227 B3). This has proven itself in principle, but is in need of improvement in view of the coupling between the integrated lever in the quick release levers. In fact, there is the fundamental possibility or even the danger that two levers coupled in this process are not exactly aligned in their relative position with respect to one another, so that dysfunctions are observed. Here, the invention aims to provide a total remedy.

The invention is based on the technical problem of further developing such a motor vehicle door lock so that the coupling of the two levers takes place functionally and in particular the assumed relative positions are set and maintained in a secure and reproducible manner.

To solve this technical problem, a generic motor vehicle door lock in the invention is characterized in that at least one first lever has a connected detent spring for interaction with at least one detent contour on the other second lever.

The detent spring may be integrally formed on the first lever. In this connection, it is possible for the detent spring and the first lever to form and define a one-piece component. In principle, however, the detent spring can also be connected to the first lever by any conceivable manner. Here it is possible, for example, to couple the detent spring in question via a rivet connection, a screw connection etc. with the first lever.

In all cases, the first lever with the connected detent spring ensures that the second other lever is acted upon by means of the detent spring.

For this reason, the first lever with the detent spring is usually designed as a fixed lever. In contrast, it is in the second lever with the locking contour to a relative to the fixed lever in different locking positions alignable locking lever. That is, the fixed lever regularly maintains its position, whereas the locking lever is formed movable relative to the fixed lever and against the force of the detent spring in the various locking positions. Mostly at least two locking positions can be realized. According to an advantageous embodiment, even three or more locking positions can be defined.

To realize this in detail, the detent spring and the locking lever can be arranged level with each other. In this case, the spring force built up by the detent spring thus acts in the direction of the plane of the locking lever acted upon by the detent spring.

But it is just as possible and conceivable that the detent spring and the locking lever are arranged plane different from each other. In this case, the detent spring and the detent lever thus describe different and regularly arranged at an angle to each other planes. Mostly, it has proven in this context, when the detent spring and the locking lever are arranged perpendicular to each other. That is, in this case, the detent spring exerts a spring force, which is aligned perpendicular to the plane defined by the locking lever level. A particularly cost-effective and functional solution is characterized in that the locking lever is mounted on the fixing lever in a rotation axis. The detent spring is arranged in the region of the axis of rotation. In this case, the detent spring ensures at a level arrangement between the detent spring and the locking lever that the detent spring with the locking lever

a vertical force applied to the axial direction of the axis of rotation. In contrast, corresponds to the plane different arrangement of detent spring and locking lever, in particular their vertical arrangement to each other that the detent spring acts on the locking lever with an axial force. In this case, the spring force built up by the detent spring thus acts in the axial direction of the axis of rotation. In principle, the axial force and the vertical force to the axial direction of the axis of rotation but also at the same time attack the locking lever.

The detent spring is according to a preferred embodiment, a leaf spring. In this case, the first lever or fixed lever is usually designed in cross-section L-shaped, wherein the detent spring is formed on an L-leg. This makes it possible to produce a first lever or fixed lever and the detent spring as it were in one go, which is particularly cost-effective.

The latching contour may be a latching recess that at least partially accommodates the leaf spring. In this case, the catch recess usually provides a stop at the same time. This stop marks a first detent position. In addition, at least one further second stop may be realized, which corresponds to a further locking position of the locking lever relative to the fixed lever.

As part of an alternative approach, however, the detent spring may also be designed as a spring ring. Also, a coil spring with a plurality of such spring rings is conceivable in this context. In this case, the latching contour is typically designed as a stop edge interacting with a projection on the latching lever. The stop edge is found on the fixed lever, whereas the projection on the locking lever interacts with this stop edge on the fixed lever. In this case, the concern of the projection corresponds to the detent

lever at the stop edge of the fixed lever to a first detent position. A further second detent position may then be assumed by the detent lever, if additionally a further stop edge is used on the fixed lever. If the fixed lever is an elongated strip-like lever, the two longitudinal edges of the lever are available as the respective stop edge for the first and the second latching positions.

Moreover, it is within the scope of the invention, when the locking lever is adapted to take at least three different locking positions. In this context, it has proven useful when the detent spring and the locking lever are arranged equal to each other. Because of this it is possible to make the formed on an L-leg of the fixed lever leaf spring or detent spring with a polygonal contour end side of the locking lever interact. Depending on the number of edges of this polygonal contour or polygon structure can theoretically represent any number of locking positions of the locking lever relative to the fixed lever. In this case, each locking position corresponds to the fact that the leaf spring comes into contact with an edge on the polygon structure. - In principle, this polygon structure can of course be combined with a spring washer as a detent spring. In this case, it is conceivable that the spring ring is equipped with the polygonal structure cross-axial webs and each locking position corresponds to the fact that the polygon structure is compared with the finger-like cross-axial webs as it continues to be rotated. If two or more locking positions are taken by the locking lever relative to the fixed lever, it has proven useful if at least one of the locking positions can be fixed solely by means of the detent spring. That is, in this case, the locking position by the interaction between the detent spring and the locking contour alone - without additional stop - defined.

At least one detent position of the plurality of detent positions, however, can be fixed by means of the detent spring and additionally by means of a stop. In this case, on the one hand, the interaction between the detent spring and the abutment contour and, on the other hand, the abutment and the detent lever ensure in total that the detent lever assumes the relevant detent position. In principle, it is of course also conceivable that all locking positions of the locking lever relative to the fixed lever can be fixed only with the help of the detent spring. Likewise, all detent positions can just as well be defined by the fact that both the detent spring and the corresponding stop ensure that the detent lever assumes its desired detent position relative to the fixed lever.

The locking lever is preferably an unlocking lever and in particular a quick release lever. In this case, the detent lever may be part of a release lever chain. In contrast, the fixed lever typically belongs to the operating lever mechanism. To realize the quick-release function, the latching lever is pivoted relative to a first latching position or basic position into a deflection position or second latching position. This can be done by motor or manually. As a result of the Einseinme this deflection position part quick release lever or locking lever can be, for example, on the operating lever chain directly deflect a locking lever acting on, so that the locking mechanism is opened almost instantaneously. All of this succeeds quickly and functionally reliable as well as reproducible, because the basic position and deflection position of the locking lever or quick-release lever are taken properly and reproducibly by the interaction with the detent spring. 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:

1 shows a motor vehicle door lock according to the invention in a first variant,

2 shows the article according to FIG. 1 in section along a line A-A, FIG.

Fig. 3 shows a modified embodiment of Fig. 1 in an enlarged

Presentation,

Fig. 4 shows a second variant of the motor vehicle door lock according to the invention in longitudinal section and

Fig. 5 shows the variant of FIG. 4 in supervision.

In the figures, a motor vehicle door lock is shown, which has an actuating lever mechanism 1 and an unlocking lever mechanism 2. By way of example, only a first lever or fixed lever 1 are represented by the actuating lever mechanism 1, whereas the locking lever mechanism 2 is also represented only by a second lever 2. In the actual installation situation, not shown, the actuating lever mechanism 1 as well as the locking lever mechanism 2 include further unspecified levers to which it does not come closer in the present case.

As usual, the actuating lever mechanism 1 is typically in mechanical communication with a handle, such as an inside door handle and / or outside door handle. An actuation of the handle for opening a motor vehicle door belonging to the motor vehicle door closure shown corresponds to

pondiert to that the first lever or fixed lever 1 is pivoted about an associated axis of rotation 3 in the illustration of FIG. 1 in the counterclockwise direction, as an arrow indicates. During these pivoting movements, the locking lever 2 mounted on the fixing lever 1 in the axis of rotation 3 does not reach a triggering lever 4 which is merely indicated.

On the other hand takes the locking lever 2 in comparison to its solid first detent position or basic position compared to the fixed lever 1 its deflection or second detent position, which is shown in phantom, so leads the already discussed pivotal movement of the fixed lever 1 using the handle to that now the release lever 4 can be acted upon. As a result, the handle is now able to open a not closer shown locking mechanism on the release lever 4. Actually, the release lever 4 operates on a pawl, not shown, and lifts it from a catch. The catch opens spring-loaded and releases a previously captured locking pin. As a result, the motor vehicle door can be opened immediately.

The process described corresponds to a quick release, which is achieved manually and / or motorized in that the locking lever 2 is transferred in the example case of the basic position shown in solid line in its dash-dotted line deflection position. In fact, both levers 1, 2 are coupled together in at least two different relative positions, the home position and the deflection position as described. This coupling is a detent coupling. Because the first lever or fixed lever 1 is equipped with a connected detent spring 5. The detent spring 5 is adapted to interact with at least one detent contour 6 on the other second lever or detent lever 2. In the context of the embodiment according to FIGS. 1 to 3, the detent spring 5 at the first

Molded lever or fixed lever 1. In fact, the detent spring 5 and the first lever 1 form a one-piece component.

On the basis of the associated sectional view in Fig. 2 can be seen in addition that the fixed lever 1 in conjunction with the integrally formed detent spring 5 forms a total of L-shaped lever 1, 5 in cross section. In this case, the fixed lever 1 defines the longer L-leg, whereas the detent spring 5 is formed on the shorter L-leg. In this way, the fixed lever 1 and the detent spring 5 can be made together and in one go. This keeps costs low. In addition, the detent spring 5 is formed in this case as a leaf spring 5.

It can be seen that the detent spring 5 and the locking lever 2 are arranged in the illustrated example according to FIGS. 1 to 3 equal to each other. That is, the spring force F built up by the detent spring 5 acts in the direction of the plane spanned by the detent lever 2. This is indicated by FIG. 1 by a corresponding force arrow F for the spring force F built up by the detent spring 5.

In the embodiment according to FIGS. 1 to 3, the detent spring 5 or leaf spring 5 is rectangular in cross section, so that the contour 6 also has a rectangular shape , As a result, the latching contour 6 simultaneously forms a stop 7 for the front end of the leaf spring 5.

With the help of the stop 7 in conjunction with the interaction between the detent spring 5 and the locking lever 2, the first detent position or the solid position shown in FIG. 1, the locking lever 2 defined relative to the fixed lever 1. If now out of this position the

Locking lever 2 is pivoted to the deflection position shown in phantom with the previously described effects, so is another stop 8 available, which again in conjunction with the interaction between the detent spring 5 and the locking contour 6 for the defined assumption of the deflection of the locking lever 2 provides , The stop 8 is - like the detent spring 5 - to the fixed lever 1 (integrally) formed. This makes the production particularly easy and fast. Because for the ultimate operation, it is sufficient only to define the fixed lever 1 together with the folded detent spring 5 and the folded and also connected stop 8 and then only the locking lever 2 with the help of the rotation axis 3 pivotally connected to the fixed lever 1.

It is clear from FIG. 3 that the locking lever 2 is not only set up and suitable for taking the two locking positions shown in FIG. 1, namely the basic position and the deflection position. Rather, the locking lever 2 can also occupy three or more different locking positions. For this purpose, the locking lever 2 in the variant according to FIG. 3 has a polygonal contour 9 with a plurality of edges 10 in the region of its rotation-axis-side end.

Depending on the number of edges 10 in the polygon contour 9 can be three, four or even more different locking positions of the locking lever 2 relative to the fixed lever 1 represent and set up. In this case, each locking position in the example case corresponds to the fact that the locking lever 2 is fixed solely by means of the detent spring 5. That is, there are no additional stops used, although this is of course possible and is encompassed by the invention. In the described variant according to FIGS. 1 to 3, the detent spring 5 and the locking lever 2 as described are arranged equal to each other. The design is such that the detent spring 5, the locking lever 2 with the force or spring force F

acted upon, which is perpendicular to the axial direction of the axis of rotation 3, as the Fig. 1 indicates. Consequently, the locking lever 2 can take over a switching function, namely can be moved manually or by motor from the solid position shown in FIG. 1 in the dash-dotted line deflection position as described, and back.

The embodiment according to FIGS. 4 and 5 operates in principle exactly as already stated with reference to FIGS. 1 to 3. The main difference compared to the variant according to FIGS. 1 to 3 is that in the embodiment according to FIGS. 4 and 5, the detent spring 5 and the detent lever 2 are arranged at an angle to one another. In fact, designed in the present case as a spring ring 5 detent spring 5 a spring force F, which is perpendicular to the plane defined by the locking lever 2 plane. Incidentally, the detent spring 5 in the variant according to FIGS. 4 and 5 also not formed on the fixed lever 1, but connected to the fixed lever 1, namely on the rotation axis 3. In fact, the interpretation is made such that the axis of rotation 3 in the Variant according to FIGS. 4 and 5 designed as a loaded with the spring ring 5 connecting axis for rotatably supporting the locking lever 2 on the fixed lever 1 is formed.

The detent spring or the spring ring 5 ensures that the detent lever 2 is acted upon in the axial direction of the axis of rotation 3 with the spring force F built up by it. In this case, the detent spring 5 thus provides for an axial force, which operates on the locking lever 2 in the Fig. 4 indicated manner. A change of the different locking positions of the locking lever 2 relative to the fixed lever 1 requires that the locking lever 2 is acted upon by a switching force F _s, which acts in the context of the illustration of FIG. 4 at its one projection 11 opposite end. In fact, the projection 11 on the locking lever 2 interacts again with a stop edge 6 on the fixed lever 1. Verified

5 there are two opposite stop edges 6, which are formed on respective longitudinal edges of the longitudinally extending fixed lever 1.

Thus, the locking lever 2 can be transferred from its one shown in Fig. 5 shown solid position and first detent position in the dot-dash position and second detent position, the locking lever 2 with the switching force F _s at the opposite end of the projection 11, so that the projection 1 1 is "lifted" as it were on the fixed lever 1 and then comes to rest or come to rest on the other opposite stop edge 6. In this case, at least two latching positions can be defined as shown in FIG. 5. Of course, more than two locking positions are conceivable.

It is clear from FIG. 5 that the detent lever 2 shown in the dash-dotted deflection position is again able to act on the triggering lever 4. This does not succeed when the locking lever 2 is in the solid line drawn basic position. In this way, a quick-release function can again be realized, as has already been explained in detail with reference to the variant according to FIGS. 1 to 3. Of course, the invention is not limited to this, because it is basically the interaction of the two levers 1, 2 - regardless of their function - arrives.

Claims

claims:

A motor vehicle door lock, comprising an actuating / locking lever mechanism (1, 2) with a first lever (1) and a second lever (2), wherein both levers (1, 2) can be coupled together in at least two different relative positions, characterized in that at least one first lever (1) has a connected detent spring (5) for interaction with at least one detent contour (6) on the other second lever (2).

2. Motor vehicle door lock according to claim 1, characterized in that the detent spring (5) to the first lever (1) is integrally formed.

3. Motor vehicle door lock according to claim 1 or 2, characterized in that the first lever (1) with the detent spring (5) as a fixed lever (1) and the second lever (2) with the latching contour (6) as compared to the fixed lever (1) formed in different locking positions alignable locking lever (2).

4. Motor vehicle door lock according to one of claims 1 to 3, characterized in that the detent spring (5) and the latching lever (2) are arranged equal to each other.

5. Motor vehicle door lock according to one of claims 1 to 3, characterized in that the detent spring (5) and the latching lever (2) are arranged plane different from each other.

6. Motor vehicle door lock according to claim 5, characterized in that the detent spring (5) and the locking lever (2) are arranged perpendicular to each other.

7. Motor vehicle door lock according to one of claims 1 to 6, characterized in that the latching lever (2) on the fixed lever (1) in a rotation axis (3) is mounted.

8. Motor vehicle door lock according to claim 7, characterized in that the detent spring (5) in the region of the axis of rotation (3) is arranged.

9. Motor vehicle door lock according to claim 7 or 8, characterized in that the detent spring (5) the detent lever (2) with an axial force (F) and / or vertical force (F) to the axial direction of the axis of rotation (3) acted upon.

10. Motor vehicle door lock according to one of claims 1 to 9, characterized in that the detent spring (5) as a leaf spring (5) and the detent contour (6) as the leaf spring (5) at least partially receiving detent recess (6) is formed.

1 1. Motor vehicle door lock according to one of claims 1 to 10, characterized in that the detent spring (5) as a spring ring (5) and the locking contour (6) as with a projection (1 1) on the locking lever (2) interacting stop edge (6 ) is trained.

12. Motor vehicle door lock according to one of claims 1 to 1 1, characterized in that the locking lever (2) is adapted to take at least three different locking positions.

13. Motor vehicle door lock according to one of claims 1 to 12, characterized in that the locking lever (2) in at least one of the locking positions only by means of the detent spring (5) is fixable.

14. Motor vehicle door lock according to one of claims 1 to 13, characterized in that the latching lever (2) in at least one latching position by means of the detent spring (5) and additionally by means of a stop (7, 8) is fixable.

15. Motor vehicle door lock according to one of claims 1 to 14, characterized in that the latching lever (2) is designed as a release lever and in particular quick release lever.