EP2893108A2

EP2893108A2 - Motor vehicle door lock

Info

Publication number: EP2893108A2
Application number: EP13814005.8A
Authority: EP
Inventors: Michael Scholz; Armin Handke; Ömer INAN; Radek Mazal
Original assignee: Kiekert AG
Current assignee: Kiekert AG
Priority date: 2012-09-07
Filing date: 2013-09-05
Publication date: 2015-07-15
Anticipated expiration: 2033-09-05
Also published as: IN2015DN02510A; RU2015107866A; MX2015002880A; KR102055431B1; WO2014036991A2; US10358848B2; KR20150053957A; EP2893108B1; DE102012017677A1; CA2886771A1; RU2628928C2; BR112015005071A2; JP2015532952A; US20150233156A1; WO2014036991A3; CN104769201B; JP6269985B2; CN104769201A

Abstract

The subject matter of the present invention is a motor vehicle door lock, the basic construction of which is equipped with a locking mechanism (1, 2) consisting essentially of a rotary latch (1) and a detent pawl (2), furthermore with a release element (3) for the locking mechanism (1, 2) and with a storage element (4). The storage element (4) ensures an unobstructed opening movement of the rotary latch (1) from a closed position into an open position. According to the invention, for this purpose, the storage element (4) holds the release element (3) during the opening movement of the rotary latch (1) in an ineffective position with respect to the locking mechanism (1, 2).

Description

Motor vehicle door loss Description:

The invention relates to a motor vehicle door lock, with a locking mechanism consisting essentially of catch and pawl, further comprising a locking element for the locking mechanism, and with a storage element which ensures an unobstructed opening movement of the rotary latch from a closed to an open position.

In a motor vehicle door lock of the structure described in the introduction according to DE 10 2006 032 033 A1, the storage element ensures to keep in a storage position the pawl when turning the catch from its closed position to beyond passing the Vorraststeilung in its release position. For this purpose, the storage element comprises a triggering element associated with the support section, which occurs upon actuation of the triggering element to reach the storage position in front of a storage stage of the rotary latch. This memory level is left after passing the Vorraststeilung again. In this way, the storage element prevents that during the opening movement of the rotary latch, the pawl inadvertently in the catch (again) can occur. Such functional states are u. a. in a tailgate conceivable, in the event that this has, for example, a snow load.

In a motor vehicle door lock according to DE 40 42 678 C1 a trigger lever is associated with a storage lever as a storage element. In the storage position of the storage element, the pawl is held in the open position until the catch has been fully opened by manually opening an associated motor vehicle door. In this way, it is to be ensured that when the vehicle door is triggered, for example, by remote control but not completely executed, the pawl falls into the catch (again) and an opening is not (anymore) possible. Such a functional condition may occur when the motor drive for lifting the pawl after the remote-controlled opening signal is then transferred to its original position again.

The prior art may not be satisfactory in all aspects. Thus, the structure according to DE 40 42 678 C1 is relatively complex and makes use of a variety of levers. DE 10 2006 032 033 A1 has brought a simplification at this point insofar as here the memory element is equipped with a support section associated with the trigger element. However, the memory element still works on the pawl to hold them in their release position. As soon as the functionality of the memory element is impaired in any way, consequently, the pawl can still be incident in the catch, so that then functional impairment must be feared. 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, with a structurally simple design, the greatest possible functional reliability is made available.

To solve this technical problem, a generic motor vehicle door lock in the context of the invention is characterized in that the storage element holds the trigger element during the opening movement of the rotary latch in an ineffective with respect to the Gesperres position.

In contrast to the prior art, for example, according to DE 10 2006 032 033 A1, the memory element does not work on the pawl, but rather the triggering element. Because the memory element ensures that the trigger element is held during the opening movement of the catch in its inoperative position compared to the locking mechanism. D. h., The memory element ultimately works on the trigger element and not the pawl. Thus, the pawl does not automatically engage in this constellation in the catch, the pawl is advantageously biased toward a disengaged position. This typically provides a pawl associated spring, which thus keeps the pawl from the engagement area with the catch. In this way, a particularly functionally reliable and at the same time structurally simple design is provided. Because the pawl can not interact with the rotary latch by its chosen bias per se or only when a pawl associated blocking lever acts on the pawl accordingly, so that they can fall into the main latching position or interact with a main latching edge of the rotary latch.

In all other cases, the catch is free from the pawl anyway. In addition, since the storage element holds the trigger element in its inoperative position, the catch completes the opening movement virtually completely mechanically unaffected. An inadvertent blockage or obstruction of this opening movement of the rotary latch from its closed to the open position can therefore not occur in principle already. As a result, the reliability over previous embodiments is significantly increased.

In addition, the structural design is particularly simple. Because the memory element is advantageously connected to the trigger element and interacts regularly with a storage stage. This storage stage can be provided on the catch. D. h., For the effectiveness of the memory element, it is only necessary that the memory element is applied to the memory stage and slides along and is held in this way the trigger element coupled to the trigger element in the inoperative position with respect to the locking mechanism. In any case, this applies to the entire path that the storage element completes along the storage stage. For this purpose, the memory element advantageously has a nose interacting with the memory stage. The nose and the storage level are regularly equipped with corresponding inclined surfaces. In this way, the nose can be displaced from a latching position engaging behind the storage stage into a release position sliding along the storage stage. For a corresponding displacement movement, it is only necessary to apply the trigger element accordingly. For as soon as the trigger element is pivoted, for example, from the detent position of the nose in the release position, the corresponding inclined surfaces of the nose and the storage stage slide along each other and the nose goes from its latching behind the storage stage detent position in the release position.

As already explained, the nose and with it the storage element slides in the release position of the rotary latch along the storage stage. For this corresponds to the inoperative position of the trigger element with respect to the locking mechanism. That is, as long as the nose slides along the storage stage in the release position, the trigger element can not interact with the ratchet because it is in an inoperative position relative to the ratchet.

The storage stage is regularly designed arcuate with a matched to their distance from the axis of rotation of the rotary latch radius and can extend over an angle of less than 120 °, preferably 90 ° and more preferably over an angle of 50 °. As a result, the opening catch causes the trip element to be held in the inoperative position as long as the nose slides along the arcuate storage stage. As soon as the nose leaves or can leave the arcuate storage stage, the rotary catch can in principle be transferred into a closed position or into the closed position. Thus, in one embodiment, an angle of 47 °, that is, an extension of the arcuate storage stage over an angular range of 47 ° along an outer edge of the rotary latch executed, with a safe remote holding the release lever could be realized. For a corresponding closing movement of the rotary latch corresponds to the fact that then slide the two inclined surfaces of one hand, the nose and on the other hand, the storage stage along each other. This happens as part of the closing movement of the catch until the catch has reached its closed position or main latching position. Then, the pawl is spent in engagement with the associated main locking edge of the rotary latch. For this purpose, the locking pawl associated blocking lever, which pivots in this case, spring assisted in a position which transfers the pawl in the main latching position of the rotary latch against the force of its own spring. The blocking lever is in turn assigned to the triggering element.

In fact, the triggering element is able, starting from the main locking position of the locking mechanism, to remove the locking lever from its bearing with respect to the locking pawl or to pivot away therefrom. As a result, the pawl is spring assisted in their disengagement pitch with respect to the catch on. At the same time, this loading of the triggering element ensures that the memory element is displaced with its nose from the previously taken behind engaging detent position with respect to the storage stage in the sliding on the storage stage along release position. Consequently, following this functional position, the catch can, without being influenced by the pawl and the triggering element, automatically move from its closed to the open position, spring-assisted. In the open position, the catch releases a previously captured locking bolt, so that then an associated vehicle door can be easily opened by an operator.

All of this succeeds in consideration of a functionally reliable structure, which manages with a minimum of required components. In fact, namely, the triggering element and the storage element are regularly designed as a unit or one piece. In this case, the assembly made of the triggering element and the storage element at least partially made of plastic be. Likewise, the catch and the storage stage can define a unit. This may also be made of plastic and metal.

Moreover, it is within the scope of the invention, when the catch additionally occupies or can take a Vorraststeilung in the described closing operation and before reaching its closed position or main detent position. For this purpose, the pawl may be equipped with a further lever which is rotationally connected to the trigger element. This additional lever can interact with a survey on the catch when taking the Vorraststeilung, is in principle dispensable. 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 to 4 The motor vehicle door lock according to the invention reduced to the

Gesperre and the hereby interacting elements in different functional positions and

Fig. 5 is a perspective view of a detail of the memory element with associated nose.

In the figures, a motor vehicle door lock is shown, which is composed in its basic structure of a locking mechanism 1, 2 of essentially rotary latch 1 and pawl 2. Furthermore, a trigger element 3 for the locking mechanism 1, 2 is realized. In addition, still a memory element 4 belongs to the basic structure, which ensures an unobstructed opening movement of the rotary latch 1 from a closed to an open position. The effect of the storage element 4 can be understood in particular, if one compares the closed position of the rotary latch 1 shown in FIG. 1 with the open position of FIG. 3 and the fully open position shown in FIG. In the context of the invention, the previously described unhindered opening movement of the rotary latch 1 is ensured from its closed to the open position in such a way that the storage element 4 holds the trigger element 3 during the opening movement of the rotary latch 1 in its respect to the locking mechanism 1, 2 inoperative position. The pawl 2 is ineffective in this case. This is ensured in the embodiment, a spring not explicitly shown, which biases the pawl 2 with respect to its axis of rotation 5 in the direction indicated in FIG. 1 counterclockwise direction, as indicated by a corresponding arrow in the relevant figure. D. h., The pawl 2 is biased toward a disengaged position with the catch 1.

In the closed position shown in Fig. 1 of the locking mechanism 1, 2 and the main detent position of the catch 1, the pawl 2 associated blocking lever 6 ensures that the pawl 2 rests with an edge 7 at a main ratchet 8 of the catch 1 and the edge 7 does not swing away in the indicated counterclockwise direction of the main ratchet 8 and Haupttrastkante. Such a Wegschwenkbewegung prevents the already mentioned blocking lever 6, which is additionally associated with the trigger element 3.

The triggering element 3 is a triggering lever 3, which is designed as Einarmhebel and coaxially mounted in comparison to the pawl 2 rotatable about the common axis or axis of rotation 5. In contrast, the release element or release lever 3 associated blocking lever 6 has its own axis or axis of rotation 9, about which the blocking lever 6 is rotatably mounted. The blocking lever 6 may also be equipped in the embodiment with a spring which biases the blocking lever 6 in the counterclockwise direction with respect to its axis of rotation 9, as another arrow in FIG. 1 indicates. The storage element 4 is connected according to the invention to the trigger element or the release lever 3. In fact, the storage element 4 is an arm connected at an angle to the longitudinally extended release lever 3. In the exemplary embodiment, the triggering element 4 or the relevant boom is connected at right angles or almost at right angles to the longitudinally extended triggering lever 3. In any case, define the triggering element or the release lever 3 and also the storage element 4 and the corresponding cantilever in general a structural unit 3, 4, which may be wholly or partly made of plastic.

The memory element 4 is assigned a memory stage 10. In the exemplary embodiment, the storage stage 10 is provided on the rotary latch 1 and in the present case designed as a curved web. The web can be formed in a plastic sheath of the metal-made rotary catch 1. In fact, the storage stage 10 has a radius R, which is adapted to the distance of the storage stage 10 from the axis of rotation 11 of the rotary latch 1.

The memory element 4 is equipped with a nose 12 interacting with the memory stage 10, as the perspective detailed view in FIG. 5 makes clear. The nose 12 and the memory stage 10 have corresponding inclined surfaces 13, 14, which are adapted to each other. The nose 12 can occupy a total of two different basic positions with respect to the memory stage 10.

Thus, the nose 12 is in the functional position of FIG. 1 in a memory stage 10 engaging behind detent position. In contrast, the functional position corresponds in Figs. 2 and 3 to the fact that the nose 12 slides on the storage stage 10 along. This includes the release position of the nose 12 and consequently the release position of the memory element 4 and the triggering element 3 controlled by the memory element 4. The triggering element 3 is in the release position of the locking mechanism 1, 2 free, ie is in an inoperative position. Such a release position is also shown in FIG. 4 observed, in which there is no interaction between the nose 12 on the one hand and the storage stage 10 on the other hand. In any case, the triggering element 3 in its release position, neither the pawl 2 nor the rotary latch 1 mechanically act in any way.

When the transition from the main rest position of FIG. 1 with the nose 12 located in detent position with respect to the memory stage 10 in the release position of the nose 12 with respect to the memory stage 10 of FIGS. 2 and 3, the nose 12 with the help of the trigger element 3 so acted upon, that the two inclined surfaces 13, 14 slide along each other until the nose 12 has overlapped the storage stage 10. As a result, the nose 12 can slide along the outside or edge of the storage stage 10, as shown in Figs. 2 and 3. In this release position interactions of the trigger element 3 with the locking mechanism 1, 2 are not possible because the triggering element 3 is lifted from the locking mechanism 1, 2 as it were. Since the pawl 2 in this case can not interact with the rotary latch 1 or spring-supported pivoted away from the rotary latch 1 about its axis or axis of rotation 5, the rotary latch 1 can perform an unobstructed opening movement. Because the memory element 4 holds the trigger element 3 during this opening movement of the rotary latch 1 in relation to the locking mechanism 1, 2 inoperative position.

The opening movement of the rotary latch 1 adjoins the main latching position according to FIG. 1 and is shown primarily in FIGS. 2 and 3. As soon as the rotary latch 1 has reached the functional position corresponding to FIG. 4, the nose 12 leaves the storage stage 10. Then the trigger element 3 can pivot about its axis or axis of rotation 5 in a clockwise (spring-assisted) manner, as in the transition from FIG Fig. 4 becomes clear.

As a result, the rotary latch 1 is in a kind of readiness position for a subsequent closing operation. For when the catch 1, starting from the open or fully open position of FIG. 4 in Closing direction is applied so that it performs a rotation about its axis or rotation axis 11 shown there in a clockwise direction, starting from the functional position of FIG. 4, the nose 12 on the memory element 4 in a position to engage behind the memory stage 10. At the end of this closing movement, starting from FIG. 4, the rotary catch 1 assumes the position according to FIG. 1 or the main locking position.

Previously like an optional latch lever 2 'interact on the pawl 2 with a survey, not shown on the rotary latch 1. D. h., Before the rotary latch 1, starting from the fully open position shown in FIG. 4, the fully closed position or main latching position of FIG. 1 reached interacts said ratchet lever 2 'with the survey on the rotary latch 1. For this purpose corresponds to a Vorraststeilung of the lock 1, 2, which is, however, in principle dispensable and is mentioned only for the sake of completeness.

However, as soon as the catch 1 during its closing movement, d. H. a rotation in a clockwise direction about the axis of rotation 1 1, the position reached according to FIG. 1, the previously on the rotary latch 1 along sliding pawl 2 or its edge 7 interact with the main ratchet 8 on the rotary latch 1. In fact, in this case, the blocking lever 6 ensures that the pawl 2 prestressed in the counter-clockwise sense direction engages in the said main latching stage 8. For this purpose, the blocking lever 6 - as already described in the introduction - also biased counterclockwise about its axis 9 by means of a spring.

Once, in any case, the catch 1 has reached the position of FIG. 1, the pawl 2 is pressed by means of the blocking lever 6 as it were in the main catch of the catch 1 or the edge 7 on the pawl 2 in the direction of the main ratchet 8 on the catch 1 pivoted by means of the locking lever 6. In the corresponding functional position according to FIG. 1, the locking mechanism 1, 2 is consequently in the main locking position. To leave this, First, the trigger element 3 must be pivoted about its axis of rotation 5 in the counterclockwise direction, as is clear from the transition from Fig. 1 to Fig. 2. In this process, not only does the memory element 4 or its nose 12 leaves the memory stage 10 and its engaging detent position with respect to this memory stage 10. But at the same time also provides an edge 15 on the trigger element 3 that a voltage applied to the edge 15 pin 16 of the locking lever. 6 in the illustrated main rest position of FIG. 1 undergoes an admission.

Actually acted on the edge 15 on the trigger element 3, the pin 16 of the locking lever 6 in such a way that the blocking lever 6 is pivoted in the transition from Fig. 1 to Fig. 2 about its axis 9 in the clockwise direction, and was against the force of the blocking lever 6 associated spring. As a result, the locking lever 6 leaves with its boom 17, a nose 18 on the pawl 2, to which the boom 17 has initially applied in the main latching position shown in FIG. As a result, the boom 17 dips into a recess 19 on the pawl 2. At the same time, the pawl 2 moves spring-assisted about its axis of rotation 5 in the counterclockwise direction and consequently away from the rotary latch 1. The functional position of FIG. 2 is reached.

The boom 17 on the blocking lever 6 only emerges from the recess 19 on the pawl 2, as it were, when the catch 1 is transferred, starting from the functional position according to FIG. 4, to the main stop position according to FIG. Because then the blocking lever 6 is able to push the pawl 2 with its edge 7 in the main ratchet 8 as it were. In this process, the boom 17 of the locking lever 6 slides along the recess 19 until the boom 17 rests on the nose 18 of the pawl 2 and blocks the pawl 2 in the then reached main locking position of FIG. Consequently, in this position, the pawl 2 can not pivot about its axis of rotation 5 in the counterclockwise direction. The illustrated motor vehicle door lock may be designed as a motor vehicle door lock for a motor vehicle side door. In general, however, the motor vehicle door lock is a lock for a tailgate or a tailgate lock. In this respect, the additional latch lever 2 'can be omitted on the pawl 2. D. h., In this case, no two-link locking is realized, but the locking mechanism 1, 2 only able to take the illustrated in Fig. 1 main locking position and of course the open position corresponding to FIG. 4 as quasi end positions.

As already explained in the introduction, the triggering element 3 can be produced together with the storage element 4 in a common production process, in which connection a structural unit 3, 4 of mostly plastic material is used. In contrast, the additional latch lever 2 'is usually made of metal. In addition, the latch lever 2 'regularly rotatably connected to the trigger element 3.

Claims

claims:

1. Motor vehicle door lock, with a locking mechanism (1, 2) consisting essentially of a rotary latch (1) and pawl (2), further comprising a trigger element (3) for the locking mechanism (1, 2), and with a storage element (4) ensures an unobstructed opening movement of the rotary latch (1) from a closed to an open position, characterized in that the storage element (4) the trigger element (3) during the opening movement of the rotary latch (1) in a respect to the locking (1, 2) inoperative position holds.

2. Motor vehicle door lock according to claim 1, characterized in that the pawl (2) is biased in the direction of a disengaged position with the rotary latch (1).

3. Motor vehicle door lock according to claim 1 or 2, characterized in that the storage element (4) is connected to the triggering element (3).

4. Motor vehicle door lock according to one of claims 1 to 3, characterized in that the storage element (4) is associated with a storage stage (10).

5. Motor vehicle door lock according to claim 4, characterized in that the storage stage (10) on the rotary latch (1) is provided.

6. Motor vehicle door lock according to claim 4 or 5, characterized in that the storage element (4) has an interacting with the storage stage (10) nose (12).

7. Motor vehicle door lock according to claim 6, characterized in that the nose (12) and the storage stage (10) with corresponding inclined surfaces (13, 14) are equipped.

8. Motor vehicle door lock according to claim 6 or 7, characterized in that the nose (12) of a storage stage (10) engages behind the detent position in a storage stage (10) along the sliding release position is displaced.

9. Motor vehicle door lock according to one of claims 4 to 8, characterized in that the storage stage (10) arcuately with a at their distance from the axis of rotation (11) of the rotary latch (1) adapted radius (R) is designed and in particular over an angle of less than 120 °, preferably 90 ° and more preferably extends over an angle of 50 °.

10. Motor vehicle door lock according to one of claims 1 to 9, characterized in that the release element (3) is associated with the pawl (2) interacting blocking lever (6).