EP2820213A1 - Motor vehicle door lock - Google Patents

Motor vehicle door lock

Info

Publication number
EP2820213A1
EP2820213A1 EP13725552.7A EP13725552A EP2820213A1 EP 2820213 A1 EP2820213 A1 EP 2820213A1 EP 13725552 A EP13725552 A EP 13725552A EP 2820213 A1 EP2820213 A1 EP 2820213A1
Authority
EP
European Patent Office
Prior art keywords
stop
motor vehicle
vehicle door
door lock
driven pulley
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13725552.7A
Other languages
German (de)
French (fr)
Other versions
EP2820213B1 (en
Inventor
Carsten Fuchs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kiekert AG
Original Assignee
Kiekert AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kiekert AG filed Critical Kiekert AG
Publication of EP2820213A1 publication Critical patent/EP2820213A1/en
Application granted granted Critical
Publication of EP2820213B1 publication Critical patent/EP2820213B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/06—Electrical using rotary motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means
    • E05B77/40—Lock elements covered by silencing layers, e.g. coatings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/57—Operators with knobs or handles

Definitions

  • the invention relates to a motor vehicle door lock, with a locking mechanism, further comprising an electric drive for the locking mechanism, and with at least one stop for the electric drive.
  • Such a motor vehicle door lock is described by way of example in DE 198 28 040 B4.
  • two stop elements for a local electric drive are realized.
  • the electric drive is used in the known teaching to open or close the associated locking mechanism.
  • the respective stop elements are arranged on the one hand of the rotary latch and on the other hand, the pawl. This has proven itself in principle.
  • noise problems in particular due to the forces occurring, may occur in the prior art under certain circumstances. Because such electric drives are often used often, especially when it comes to electrically open the locking and / or close. In fact, each of the operations described corresponds to the electric drive driving more or less hard against the one or more stops. This procedure is then still noise technology aggravated when the attack is formed, for example, in a metallic lock case and the opposite driving electric drive generates an associated noise, which is forwarded to the body through structure-borne noise and may even be reinforced. This is where the invention starts.
  • the invention is based on the technical problem of further developing such a motor vehicle door lock so that the forces occurring are absorbed so that overall the noise behavior is improved while at the same time being simple in construction.
  • the invention proposes in a generic motor vehicle door lock, that the stop is designed as arranged on the electric drive damping stop.
  • the damping stop in question and arranged on the electric drive interacts with at least one housing stop.
  • An acoustically particularly advantageous force absorption and, at the same time, assembly and production technology-simple design is observed in the event that the housing stop is made of plastic.
  • the housing stop may be made together with the plastic housing in one go. This is not mandatory.
  • the housing stop on the lock case (made of metal) may be formed.
  • the stop designed according to the invention as a damping stop on the electric drive ensures that movements of the electric drive in the region of the damping stop are effectively and as it were resiliently braked. Because the damping stop is designed to be elastic overall and ensures that the equipped with the damping stop electric drive in its final position or generally a predetermined position with low noise or practically noiseless interacts with the at least one housing stop, since the force or energy is absorbed by the housing stop.
  • the damping stop is typically arranged on a driven pulley as part of the electric drive.
  • the electric drive regularly consists of an electric motor with an output worm and with the output worm meshing with the driven pulley. Any adjusting movements of the electric drive thus correspond to rotations of the driven pulley about its axis of rotation.
  • Rotations drives the driven pulley after a certain travel with its arranged thereon at least one damping stop against the already mentioned housing stop.
  • the damping stop is typically connected to the driven pulley. In principle, it is possible to proceed in such a way that the damping stop and the driven pulley are designed in one piece. In fact, the output disk as well as the damping stop can be made entirely of plastic. There are also different plastics conceivable. In this case, the driven pulley and the damping stop are produced together in a so-called two-component injection molding process. In the case of the damping stop is typically formed on the driven pulley. It has proven useful if the damping stop is arranged radially in comparison to a rotational axis of the driven pulley.
  • the damping stop it is recommended to place the damping stop on the outer circumference of the driven pulley.
  • the damping stop can travel against the housing stop over the full area and, on the other hand, it is located on an exposed position of the driven pulley, namely on its outer circumference.
  • the damping stop can not collide with other levers or devices inside the lock housing. The forces are absorbed by a large lever arm best possible to optimize the load on the active sites and thus to improve the acoustic properties.
  • damping stop advantageously rests axially on an operating plane defined by the driven pulley.
  • the driven pulley lays first of all through its arrangement
  • the damping abutment rests on or extends in the axial direction starting from this actuation plane.
  • the damping stop is additionally arranged lifted out of the plane of actuation and consequently can not interact with levers or other lock elements projecting in the actuation plane or projecting into the actuation plane, which is expressly desired in order to avoid collisions.
  • a motor vehicle door lock which is characterized by a particularly good power consumption and a positive noise behavior and is simple, inexpensive and compact.
  • electric drive for preferably opening and / or closing the locking mechanism has at least one integrated damping stop.
  • two damping stops are realized, which enclose between them an obtuse angle, which may be for example 100 °.
  • both an end stop and an initial stop for the electric drive can be realized and defined.
  • the arranged on the electric drive damping stop interacts in this case, each with an associated housing stop.
  • two end stops can be realized when using a center zero spring, while the basic position is positioned and damped without a stop.
  • FIG. 1 shows a motor vehicle door lock according to the invention with its essential elements for the invention
  • Fig. 2 shows the electric drive or realized at this point driven pulley in detail.
  • a motor vehicle door lock is shown, which is equipped with a working on a locking mechanism release lever 1.
  • the release lever 1 is pivotally mounted about an axis 2 in a central locking housing, not shown. Pivoting movements of the trigger lever 1 in the clockwise direction shown by an arrow correspond to the fact that the pawl of the locking mechanism is lifted off the catch. As a result, the catch is opened spring assisted.
  • the motor vehicle door lock basically still has a locking lever 3 which is pivotally mounted about an associated axis of rotation 4 , In this case, pivoting movements of the locking lever 3 as well as those of the trigger lever 1 are initiated in total by means of the electric drive 5. 6, 7.
  • the electric drive 5, 6, 7 is composed of an electric motor 5, an output worm 6 driven by the electric motor 5, and a driven pulley 7 driven by the output worm 6 or driven by it.
  • a control for controlling the electric motor 5 is a control
  • the control unit 8 is provided.
  • the control unit 8 is acted upon in accordance with the admission of a handle 9 with a corresponding opening request of an operator.
  • the handle 9 is a signal generator
  • a stop 12 is provided in the exemplary embodiment on the driven pulley 7, which stop is designed as a damping stop 12 in the present case.
  • the damping stop 12 interacts with a housing stop 13, which is merely indicated.
  • the housing stop 13 may be arranged on a housing cover (not explicitly shown) or formed integrally with the housing cover (see FIG. 2).
  • the driven pulley 7 has two damping stops 12. As shown in FIG. 2 close the two damping stops 12.
  • the right in Fig. 2 damping stop 12 is used to decelerate electrical opening movements of the electric drive 5, 6, 7 attenuated at its end.
  • the left in Fig. 2 damping stop 12 acts as quasi stop or end stop for a countermovement of the electric drive 5, 6, 7, which may belong to an emergency operation in the embodiment.
  • the electrical opening previously described in detail corresponds to a normal operation.
  • the driven pulley 7 therefore performs a clockwise movement about its axis of rotation A.
  • the locking lever 3 located in its position “locked (VR)" in FIG. 1 is unlocked (ER) by means of the driven pulley 7. transferred.
  • the locking mechanism can be mechanically opened immediately in emergency operation, because now the locking lever 3 assumes its "unlocked” position and thereby a mechanical connection is made from the handle 9 to the release lever 1.
  • this functionality is of minor importance for the further considerations.
  • Fig. 2 makes it clear that the respective damping stop 12 is connected to the driven pulley 7.
  • the damping stop 12 and the driven pulley 7 are designed in one piece.
  • both the damping stop 12 and the driven pulley 7 are made of a plastic.
  • the housing stop 13 is made predominantly of an elastomeric plastic, such as EPDM (ethylene propylene rubber), NR (natural rubber), SBR (styrene-butadiene rubber) or NBR (acrylonitrile-butadiene rubber).
  • EPDM ethylene propylene rubber
  • NR natural rubber
  • SBR styrene-butadiene rubber
  • NBR acrylonitrile-butadiene rubber
  • damping stop 12 and the driven pulley 7 are produced in a common production process.
  • This production process is typically a two-component injection molding process because a plastic is used for both the damping stop 12 and the driven disk 7.
  • the housing stop can also be made of a synthetic material.
  • damping stop 12 is arranged on the outer circumference of the driven pulley 7.
  • damping stop 12 is in the context of the embodiment axially on a side defined by the driven pulley 7 level of actuation.

Abstract

The invention relates to a motor vehicle door lock, comprising a locking mechanism, and further comprising an electric drive (5, 6, 7) for the locking mechanism, and at least one stop (12) for the electric drive (5, 6, 7), wherein the stop (12) is designed as a damping stop (12) arranged on the electric drive (5, 6, 7).

Description

Kraftfahrzeugtürverschluss Beschreibung:  Motor vehicle door lock Description:
Die Erfindung betrifft einen Kraftfahrzeugtürverschluss, mit einem Gesperre, ferner mit einem elektrischen Antrieb für das Gesperre, und mit wenigstens einem Anschlag für den elektrischen Antrieb. The invention relates to a motor vehicle door lock, with a locking mechanism, further comprising an electric drive for the locking mechanism, and with at least one stop for the electric drive.
Ein solcher Kraftfahrzeugtürverschluss wird beispielhaft in der DE 198 28 040 B4 beschrieben. Hier sind zwei Anschlagelemente für einen dortigen elektrischen Antrieb realisiert. Der elektrische Antrieb dient bei der bekannten Lehre zum Öffnen oder Schließen des zugehörigen Gesperres. Dabei sind die jeweiligen Anschlagelemente an einerseits der Drehfalle und andererseits der Sperrklinke angeordnet. Das hat sich grundsätzlich bewährt. Such a motor vehicle door lock is described by way of example in DE 198 28 040 B4. Here two stop elements for a local electric drive are realized. The electric drive is used in the known teaching to open or close the associated locking mechanism. The respective stop elements are arranged on the one hand of the rotary latch and on the other hand, the pawl. This has proven itself in principle.
Allerdings treten im Stand der Technik unter Umständen Geräuschprobleme, insbesondere durch die auftretende Kräfte auf. Denn solche elektrischen Antriebe werden oftmals häufig eingesetzt, insbesondere wenn es darum geht, das Gesperre elektrisch zu öffnen und/oder zu schließen. Tatsächlich korrespondiert jeder der beschriebenen Vorgänge dazu, dass der elektrische Antrieb mehr oder minder hart gegen den einen oder die mehreren Anschläge fährt. Diese Vorgehensweise wird dann geräuschtechnisch noch verschärft, wenn der Anschlag beispielsweise in einem metallischen Schlosskasten ausgebildet ist und der dagegen fahrende elektrische Antrieb ein zugehöriges Geräusch erzeugt, welches per Körperschall zur Karosserie hin weitergeleitet und unter Umständen sogar noch verstärkt wird. Hier setzt die Erfindung ein. However, noise problems, in particular due to the forces occurring, may occur in the prior art under certain circumstances. Because such electric drives are often used often, especially when it comes to electrically open the locking and / or close. In fact, each of the operations described corresponds to the electric drive driving more or less hard against the one or more stops. This procedure is then still noise technology aggravated when the attack is formed, for example, in a metallic lock case and the opposite driving electric drive generates an associated noise, which is forwarded to the body through structure-borne noise and may even be reinforced. This is where the invention starts.
Der Erfindung liegt das technische Problem zugrunde, einen derartigen Kraftfahrzeugtürverschluss so weiterzuentwickeln, dass die auftretenden Kräfte so aufgenommen werden, so dass das Geräuschverhalten insgesamt bei zugleich einfachem Aufbau verbessert ist. The invention is based on the technical problem of further developing such a motor vehicle door lock so that the forces occurring are absorbed so that overall the noise behavior is improved while at the same time being simple in construction.
Zur Lösung dieser technischen Problemstellung schlägt die Erfindung bei einem gattungsgemäßen Kraftfahrzeugtürverschluss vor, dass der Anschlag als am elektrischen Antrieb angeordneter Dämpfungsanschlag ausgebildet ist. Im Allgemeinen wechselwirkt der fragliche und am elektrischen Antrieb angeordnete Dämpfungsanschlag mit wenigstens einem Gehäuseanschlag. Eine akustisch besonders vorteilhafte Kraftaufnahme und zugleich montage- und herstellungstechnisch einfache Auslegung wird für den Fall beobachtet, dass der Gehäuseanschlag aus Kunststoff ausgebildet ist. Tatsächlich mag der Gehäuseanschlag zusammen mit dem Gehäuse aus Kunststoff in einem Zug hergestellt werden. Das ist allerdings nicht zwingend. Denn genauso gut kann der Gehäuseanschlag auch am Schlosskasten (aus Metall) ausgebildet sein. To solve this technical problem, the invention proposes in a generic motor vehicle door lock, that the stop is designed as arranged on the electric drive damping stop. In general, the damping stop in question and arranged on the electric drive interacts with at least one housing stop. An acoustically particularly advantageous force absorption and, at the same time, assembly and production technology-simple design is observed in the event that the housing stop is made of plastic. In fact, the housing stop may be made together with the plastic housing in one go. This is not mandatory. For just as well, the housing stop on the lock case (made of metal) may be formed.
So oder so sorgt der erfindungsgemäß als Dämpfungsanschlag ausgeführte Anschlag am elektrischen Antrieb dafür, dass Bewegungen des elektrischen Antriebes im Bereich des Dämpfungsanschlages wirksam und gleichsam federnd abgebremst werden. Denn der Dämpfungsanschlag ist insgesamt elastisch ausgeführt und sorgt dafür, dass der mit dem Dämpfungsanschlag ausgerüstete elektrische Antrieb in seiner Endposition oder allgemein einer vorgegebenen Position mit dem wenigstens einen Gehäuseanschlag geräuscharm respektive praktisch geräuschlos wechselwirkt, da die Kraft bzw. Energie von dem Gehäuseanschlag aufgenommen wird. Either way, the stop designed according to the invention as a damping stop on the electric drive ensures that movements of the electric drive in the region of the damping stop are effectively and as it were resiliently braked. Because the damping stop is designed to be elastic overall and ensures that the equipped with the damping stop electric drive in its final position or generally a predetermined position with low noise or practically noiseless interacts with the at least one housing stop, since the force or energy is absorbed by the housing stop.
Zu diesem Zweck ist der Dämpfungsanschlag typischerweise an einer Abtriebs- scheibe als Bestandteil des elektrischen Antriebes angeordnet. Tatsächlich setzt sich der elektrische Antrieb regelmäßig aus einem Elektromotor mit Abtriebsschnecke sowie mit der Abtriebsschnecke kämmender Abtriebsscheibe zusammen. Etwaige Stellbewegungen des elektrischen Antriebes korrespondieren also zu Rotationen der Abtriebsscheibe um ihre Drehachse. Bei diesen For this purpose, the damping stop is typically arranged on a driven pulley as part of the electric drive. In fact, the electric drive regularly consists of an electric motor with an output worm and with the output worm meshing with the driven pulley. Any adjusting movements of the electric drive thus correspond to rotations of the driven pulley about its axis of rotation. In these
Rotationen fährt die Abtriebsscheibe nach einem bestimmten Verfahrweg mit ihrem daran angeordneten zumindest einen Dämpfungsanschlag gegen den bereits angesprochenen Gehäuseanschlag. Der Dämpfungsanschlag ist typischerweise an die Abtriebsscheibe angeschlossen. Dabei kann grundsätzlich so vorgegangen werden, dass der Dämpfungsanschlag und die Abtriebsscheibe einstückig ausgelegt sind. Tatsächlich kann die Abtriebsscheibe ebenso wie der Dämpfungsanschlag insgesamt aus Kunststoff hergestellt werden. Dabei sind auch unterschiedliche Kunststoffe denkbar. In diesem Fall werden die Abtriebsscheibe und der Dämpfungsanschlag in einem sogenannten zweikomponentigen Spritzgießvorgang gemeinsam produziert. Für den Fall ist der Dämpfungsanschlag typischerweise an die Abtriebsscheibe angeformt. Es hat sich bewährt, wenn der Dämpfungsanschlag radial im Vergleich zu einer Drehachse der Abtriebsscheibe angeordnet ist. Außerdem empfiehlt es sich, den Dämpfungsanschlag am Außenumfang der Abtriebsscheibe zu platzieren. Dadurch kann der Dämpfungsanschlag einerseits vollflächig gegen den Gehäuseanschlag fahren und findet sich andererseits an einer exponierten Posi- tion der Abtriebsscheibe, nämlich an ihrem Außenumfang. Dadurch kann der Dämpfungsanschlag nicht mit anderen Hebeln oder Einrichtungen im Innern des Schlossgehäuses kollidieren. Die auftretenden Kräfte werden durch einen großen Hebelarm best möglich aufgenommen, um die Belastung an den Wirkstellen zu optimieren und damit die akustischen Eigenschaften zu verbessern. Rotations drives the driven pulley after a certain travel with its arranged thereon at least one damping stop against the already mentioned housing stop. The damping stop is typically connected to the driven pulley. In principle, it is possible to proceed in such a way that the damping stop and the driven pulley are designed in one piece. In fact, the output disk as well as the damping stop can be made entirely of plastic. There are also different plastics conceivable. In this case, the driven pulley and the damping stop are produced together in a so-called two-component injection molding process. In the case of the damping stop is typically formed on the driven pulley. It has proven useful if the damping stop is arranged radially in comparison to a rotational axis of the driven pulley. In addition, it is recommended to place the damping stop on the outer circumference of the driven pulley. As a result, on the one hand, the damping stop can travel against the housing stop over the full area and, on the other hand, it is located on an exposed position of the driven pulley, namely on its outer circumference. As a result, the damping stop can not collide with other levers or devices inside the lock housing. The forces are absorbed by a large lever arm best possible to optimize the load on the active sites and thus to improve the acoustic properties.
Hierzu trägt ergänzend der Umstand bei, dass der Dämpfungsanschlag vorteilhaft axial auf einer seitens der Abtriebsscheibe definierten Betätigungsebene aufsteht. Das heißt, die Abtriebsscheibe legt zunächst einmal durch ihre Anord- A further factor contributing to this is the fact that the damping stop advantageously rests axially on an operating plane defined by the driven pulley. In other words, the driven pulley lays first of all through its arrangement
nung und ihre Bewegung im Innern des Schlossgehäuses die angesprochene Betätigungsebene fest. Im Vergleich zu dieser Betätigungsebene, in welcher beispielsweise von der Abtriebsscheibe beaufschlagte Hebel angeordnet sind oder in diese hineinragen mögen steht der Dämpfungsanschlag auf bzw. er- streckt sich ausgehend von dieser Betätigungsebene in axialer Richtung. Dadurch wird zusätzlich der Dämpfungsanschlag gleichsam aus der Betätigungsebene herausgehoben angeordnet und kann folglich nicht mit in der Betätigungsebene liegenden oder in die Betätigungsebene hineinragenden Hebeln oder anderen Schlosselementen wechselwirken, was ausdrücklich erwünscht ist, um Kollisionen zu vermeiden. tion and their movement in the interior of the lock housing the addressed operating level. Compared to this actuation plane, in which, for example, levers acted on by the output disk are arranged or project into it, the damping abutment rests on or extends in the axial direction starting from this actuation plane. As a result, the damping stop is additionally arranged lifted out of the plane of actuation and consequently can not interact with levers or other lock elements projecting in the actuation plane or projecting into the actuation plane, which is expressly desired in order to avoid collisions.
Im Ergebnis wird ein Kraftfahrzeugtürverschluss zur Verfügung gestellt, der sich durch eine besonders gute Kraftaufnahme und ein positives Geräuschverhalten auszeichnet und einfach, kostengünstig und kompakt aufgebaut ist. Denn der an dieser Stelle realisierte elektrische Antrieb zum vorzugsweise Öffnen und/oder Schließen des Gesperres weist zumindest einen integrierten Dämpfungsanschlag auf. Meistens sind zwei Dämpfungsanschläge realisiert, die zwischen sich einen stumpfen Winkel einschließen, der beispielsweise 100° betragen kann. Dadurch lassen sich sowohl ein Endanschlag als auch ein Anfangsanschlag für den elektrischen Antrieb realisieren und definieren. Dabei versteht es sich, dass der am elektrischen Antrieb angeordnete Dämpfungsanschlag in diesem Fall mit jeweils einen zugehörigen Gehäuseanschlag wechselwirkt. Alternativ lassen sich auch zwei Endanschläge bei der Verwendung einer Mitte- Null-Feder realisieren, dabei wird die Grundposition ohne Anschlag positioniert und gedämpft. As a result, a motor vehicle door lock is provided, which is characterized by a particularly good power consumption and a positive noise behavior and is simple, inexpensive and compact. Because of the realized at this point electric drive for preferably opening and / or closing the locking mechanism has at least one integrated damping stop. In most cases, two damping stops are realized, which enclose between them an obtuse angle, which may be for example 100 °. As a result, both an end stop and an initial stop for the electric drive can be realized and defined. It is understood that the arranged on the electric drive damping stop interacts in this case, each with an associated housing stop. Alternatively, two end stops can be realized when using a center zero spring, while the basic position is positioned and damped without a stop.
Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert; es zeigen: 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 einen erfindungsgemäßen Kraftfahrzeugtürverschluss mit seinen für die Erfindung wesentlichen Elementen und 1 shows a motor vehicle door lock according to the invention with its essential elements for the invention and
Fig. 2 den elektrischen Antrieb bzw. die an dieser Stelle realisierte Abtriebsscheibe im Detail. In den Figuren ist ein Kraftfahrzeugtürverschluss dargestellt, der mit einem auf ein Gesperre arbeitenden Auslösehebel 1 ausgerüstet ist. Der Auslösehebel 1 ist schwenkbar um eine Achse 2 in einem nicht dargestellten Zentral- verriegelungsgehäuse gelagert. Schwenkbewegungen des Auslösehebels 1 im durch einen Pfeil dargestellten Uhrzeigersinn korrespondieren dazu, dass die Sperrklinke des Gesperres von der Drehfalle abgehoben wird. Als Folge hiervon wird die Drehfalle federunterstützt geöffnet. Fig. 2 shows the electric drive or realized at this point driven pulley in detail. In the figures, a motor vehicle door lock is shown, which is equipped with a working on a locking mechanism release lever 1. The release lever 1 is pivotally mounted about an axis 2 in a central locking housing, not shown. Pivoting movements of the trigger lever 1 in the clockwise direction shown by an arrow correspond to the fact that the pawl of the locking mechanism is lifted off the catch. As a result, the catch is opened spring assisted.
Dieser beschriebene Öffnungsvorgang wird im Beispiel elektrisch initiiert, und zwar mit Hilfe eines elektrischen Antriebes 5, 6, 7. Neben diesem elektrischen Antrieb 5, 6, 7 verfügt der Kraftfahrzeugtürverschluss grundsätzlich noch über einen Verriegelungshebel 3, der um eine zugehörige Drehachse 4 schwenkbar gelagert ist. Dabei werden Schwenkbewegungen des Verriegelungshebels 3 ebenso wie diejenigen des Auslösehebels 1 insgesamt mit Hilfe des elektrischen Antriebes 5. 6, 7 initiiert. This described opening process is electrically initiated in the example, with the aid of an electric drive 5, 6, 7. In addition to this electric drive 5, 6, 7, the motor vehicle door lock basically still has a locking lever 3 which is pivotally mounted about an associated axis of rotation 4 , In this case, pivoting movements of the locking lever 3 as well as those of the trigger lever 1 are initiated in total by means of the electric drive 5. 6, 7.
Der elektrische Antrieb 5, 6, 7 setzt sich im Ausführungsbeispiel aus einem Elektromotor 5, einer vom Elektromotor 5 angetriebenen Abtriebsschnecke 6 und einer mit der Abtriebsschnecke 6 bzw. von dieser angetriebenen Abtriebsscheibe 7 zusammen. Zur Ansteuerung des Elektromotors 5 ist eine Steuer- In the exemplary embodiment, the electric drive 5, 6, 7 is composed of an electric motor 5, an output worm 6 driven by the electric motor 5, and a driven pulley 7 driven by the output worm 6 or driven by it. For controlling the electric motor 5 is a control
einheit 8 vorgesehen. Die Steuereinheit 8 wird nach Maßgabe der Beaufschlagung einer Handhabe 9 mit einem entsprechenden Öffnungswunsch eines Bedieners beaufschlagt. Zu diesem Zweck ist der Handhabe 9 ein Signalgeberunit 8 is provided. The control unit 8 is acted upon in accordance with the admission of a handle 9 with a corresponding opening request of an operator. For this purpose, the handle 9 is a signal generator
10 zugeordnet. 10 assigned.
Anhand dieses Signalgebers 10 wird der Öffnungswunsch seitens des Bedieners auf die Steuereinheit 8 übertragen, die ihrerseits als Folge hiervon den elektrischen Antrieb 5, 6, 7 ansteuert. Daraus resultiert im Ausführungsbeispiel nach der Fig. 1 eine Gegenuhrzeigersinnbewegung der Abtriebsscheibe 7. Based on this signal generator 10 of the opening request is transmitted by the operator to the control unit 8, which in turn as a result thereof, the electric drive 5, 6, 7 controls. This results in the embodiment of FIG. 1, a counterclockwise movement of the driven pulley. 7
Da die Abtriebsscheibe 7 mit einer Öffnungskontur bzw. einem ÖffnungsnockenSince the driven pulley 7 with an opening contour or an opening cam
11 ausgerüstet ist, führt diese beschriebene Gegenuhrzeigersinnbewegung der Abtriebsscheibe 7 bei einem elektrischen Öffnen dazu, dass die Öffnungskontur bzw. der Öffnungsnocken 11 den Auslösehebel 1 beaufschlagt und im Uhr- zeigersinn um seine Achse respektive Drehachse 2 verschwenkt. Am Ende dieses Vorganges wird die Sperrklinke von der Drehfalle abgehoben, die daraufhin federunterstützt öffnet. Das Gesperre ist offen. 11 is equipped, this described counterclockwise movement of the driven pulley 7 in the case of an electrical opening causes the opening contour or the opening cam 11 to act on the triggering lever 1 and to pivot about its axis or axis of rotation 2 in a clockwise direction. At the end of this process, the pawl is lifted from the catch, which then opens spring assisted. The locking is open.
Um den Weg der Abtriebsscheibe 7 zu begrenzen bzw. den elektrischen An- trieb 5, 6, 7 am Ende des beschriebenen elektrischen Öffnungsvorganges abzustoppen, ist im Ausführungsbeispiel an der Abtriebsscheibe 7 ein Anschlag 12 vorgesehen, welcher vorliegend als Dämpfungsanschlag 12 ausgelegt ist. Der Dämpfungsanschlag 12 wechselwirkt mit einem lediglich angedeuteten Gehäuseanschlag 13. Der Gehäuseanschlag 13 mag an einem nicht explizit dargestellten Gehäusedeckel angeordnet sein bzw. einstückig mit dem Gehäusedeckel ausgeformt sein (vgl. Fig. 2). In order to limit the travel of the driven pulley 7 or to stop the electric drive 5, 6, 7 at the end of the described electric opening operation, a stop 12 is provided in the exemplary embodiment on the driven pulley 7, which stop is designed as a damping stop 12 in the present case. The damping stop 12 interacts with a housing stop 13, which is merely indicated. The housing stop 13 may be arranged on a housing cover (not explicitly shown) or formed integrally with the housing cover (see FIG. 2).
Im Rahmen des Ausführungsbeispiels verfügt die Abtriebsscheibe 7 über zwei Dämpfungsanschläge 12. Ausweislich der Fig. 2 schließen die beiden In the context of the embodiment, the driven pulley 7 has two damping stops 12. As shown in FIG. 2 close the two
Dämpfungsanschläge 12 in Bezug auf die Drehachse A der Abtriebsscheibe 7 einen stumpfen Winkel α ein, der im Ausführungsbeispiel nicht einschränkend ca. 100° bis 120° beträgt oder betragen kann. Der in der Fig. 2 rechte Dämpfungsanschlag 12 dient dazu, elektrische Öffnungsbewegungen des elektrischen Antriebes 5, 6, 7 an ihrem Ende gedämpft abzubremsen. Demgegenüber fungiert der in der Fig. 2 linke Dämpfungsanschlag 12 als gleichsam Anschlag- oder Endanschlag für eine Gegenbewegung des elektrischen Antriebes 5, 6, 7, die im Ausführungsbeispiel zu einem Notbetrieb gehören mag. Dagegen korrespondiert das zuvor im Detail beschriebene elektrische Öffnen zu einem Normalbetrieb. Dampening stops 12 with respect to the axis of rotation A of the driven pulley 7 an obtuse angle α, which is not limiting in the embodiment about 100 ° to 120 ° or can be. The right in Fig. 2 damping stop 12 is used to decelerate electrical opening movements of the electric drive 5, 6, 7 attenuated at its end. In contrast, the left in Fig. 2 damping stop 12 acts as quasi stop or end stop for a countermovement of the electric drive 5, 6, 7, which may belong to an emergency operation in the embodiment. In contrast, the electrical opening previously described in detail corresponds to a normal operation.
Im Notbetrieb vollführt die Abtriebsscheibe 7 folglich eine Uhrzeigersinnbewegung um ihre Drehachse A. Dabei wird der in der Fig. 1 in seiner Stellung "ver- riegelt (VR)" befindliche Verriegelungshebel 3 mit Hilfe der Abtriebsscheibe 7 in seine Stellung "entriegelt (ER)" überführt. Als Folge hiervon kann im Notbetrieb das Gesperre mechanisch unmittelbar geöffnet werden, weil nun der Verriegelungshebel 3 seine Position "entriegelt" einnimmt und dadurch eine mechanische Verbindung von der Handhabe 9 bis hin zum Auslösehebel 1 hergestellt ist. Diese Funktionalität ist für die weiteren Betrachtungen allerdings von untergeordneter Bedeutung. In emergency operation, the driven pulley 7 therefore performs a clockwise movement about its axis of rotation A. The locking lever 3 located in its position "locked (VR)" in FIG. 1 is unlocked (ER) by means of the driven pulley 7. transferred. As a result, the locking mechanism can be mechanically opened immediately in emergency operation, because now the locking lever 3 assumes its "unlocked" position and thereby a mechanical connection is made from the handle 9 to the release lever 1. However, this functionality is of minor importance for the further considerations.
Entscheidend ist für die vorliegende Erfindung die Tatsache, dass die Abtriebsscheibe 7 am Ende ihrer Bewegung zur Darstellung des Notbetriebes mit ihrem weiteren zweiten Dämpfungsanschlag 12 gegen einen zusätzlichen Gehäuseanschlag 13 fährt. Vergleichbares gilt auch für den Normalbetrieb, bei dem der erste Dämpfungsanschlag 12 gegen den zugehörigen Gehäuseanschlag 13 anläuft. Das erfolgt in beiden Fällen gedämpft bzw. unter Berücksichtigung einer federnden Wirkung des jeweiligen Dämpfungsanschlages 12, so dass mit Decisive for the present invention is the fact that the driven pulley 7 moves at the end of its movement to the representation of the emergency operation with its further second damping stop 12 against an additional housing stop 13. The same applies to normal operation, in which the first damping stop 12 starts against the associated housing stop 13. This is done in both cases attenuated or taking into account a resilient effect of the respective damping stop 12, so that with
einem Fahren des elektrischen Antriebes 5, 6, 7 verbundene etwaige Geräusche nicht oder praktisch nicht auftreten. Um dies im Detail zu erreichen, macht die Fig. 2 deutlich, dass der jeweilige Dämpfungsanschlag 12 an die Abtriebsscheibe 7 angeschlossen ist. Dabei sind typischerweise der Dämpfungsanschlag 12 und die Abtriebsscheibe 7 einstückig ausgelegt. Im Regelfall sind sowohl der Dämpfungsanschlag 12 als auch die Abtriebsscheibe 7 aus einem Kunststoff hergestellt. Driving the electric drive 5, 6, 7 connected possible noises or not practically occur. To achieve this in detail, Fig. 2 makes it clear that the respective damping stop 12 is connected to the driven pulley 7. Typically, the damping stop 12 and the driven pulley 7 are designed in one piece. As a rule, both the damping stop 12 and the driven pulley 7 are made of a plastic.
Dabei kann beispielsweise für die Realisierung der Abtriebsscheibe 7 und des Dämpfungsanschlags 12 ein Kunststoff wie PE (Polyethylen), PP (Polypropylen) und insbesondere PA (Polyamid) zum Einsatz kommen. Demgegenüber ist der Gehäuseanschlag 13 überwiegend aus einem elastomeren Kunststoff hergestellt, wie beispielsweise aus EPDM (Ethylenpropylenkautschuk), NR (Naturkautschuk), SBR (Styrol-Butadien- Kautschuk) oder auch aus NBR (Acrylnitril-Butadien-Kautschuk). In this case, for example, for the realization of the driven pulley 7 and the damping stop 12, a plastic such as PE (polyethylene), PP (polypropylene) and in particular PA (polyamide) are used. In contrast, the housing stop 13 is made predominantly of an elastomeric plastic, such as EPDM (ethylene propylene rubber), NR (natural rubber), SBR (styrene-butadiene rubber) or NBR (acrylonitrile-butadiene rubber).
In einer weiteren Ausführung kann so vorgegangen werden, dass der Dämpfungsanschlag 12 und die Abtriebsscheibe 7 in einem gemeinsamen Herstellungsvorgang produziert werden. Bei diesem Herstellungsvorgang handelt es sich typischerweise um einen Zweikomponentenspritzgießvorgang, weil sowohl für den Dämpfungsanschlag 12 als auch die Abtriebsscheibe 7 jeweils ein Kunststoff zum Einsatz kommt. In a further embodiment, it is possible to proceed in such a way that the damping stop 12 and the driven pulley 7 are produced in a common production process. This production process is typically a two-component injection molding process because a plastic is used for both the damping stop 12 and the driven disk 7.
Wenn der Dämpfungsanschlag 12 aus einen elastomeren Kunstoff hergestellt wird, kann der Gehäuseanschlag auch aus einem Kunstostoff hergestellt werden. If the damping stop 12 is made of an elastomeric plastic, the housing stop can also be made of a synthetic material.
Anhand der Fig. 2 erkennt man ferner, dass der jeweilige Dämpfungsanschlag 12 radial im Vergleich zu der Drehachse A der Abtriebsscheibe 7 angeordnet 2 that the respective damping stop 12 is arranged radially in comparison to the axis of rotation A of the driven pulley 7
ist. Dadurch wird insgesamt erreicht, dass der Dämpfungsanschlag 12 bei den beschriebenen Radialbewegungen der Abtriebsscheibe im Normalbetrieb bzw. im Notbetrieb vollflächig oder überwiegend vollflächig gegen den zugehörigen Gehäuseanschlag 13 fährt. Das heißt, die Wechselwirkung zwischen dem Dämpfungsanschlag 12 und dem Gehäuseanschlag 13 findet unter Berücksichtigung einer größtmöglichen gemeinsamen Flächenanlage zwischen dem Dämpfungsanschlag 12 und dem Gehäuseanschlag 13 statt. Dadurch kann die elastomere bzw. federnde Wirkung des Dämpfungsanschlages 12 optimal für die Kraftaufnahme genutzt werden und lassen sich etwaige Geräusche wirksam dämpfen. is. This achieves a total that the damping stop 12 moves in the described radial movements of the driven pulley in normal operation or in emergency operation over the entire surface or predominantly over the entire surface against the associated housing stop 13. That is, the interaction between the damping stop 12 and the housing stop 13 takes place taking into account the greatest possible common surface area between the damping stop 12 and the housing stop 13. As a result, the elastomeric or resilient action of the damping stop 12 can be used optimally for the absorption of force and can effectively dampen any noise.
Darüber hinaus hat es sich bewährt, wenn der Dämpfungsanschlag 12 am Außenumfang der Abtriebsscheibe 7 angeordnet ist. Außerdem steht der Dämpfungsanschlag 12 im Rahmen des Ausführungsbeispiels axial auf einer seitens der Abtriebsscheibe 7 definierten Betätigungsebene auf. Moreover, it has proven useful if the damping stop 12 is arranged on the outer circumference of the driven pulley 7. In addition, the damping stop 12 is in the context of the embodiment axially on a side defined by the driven pulley 7 level of actuation.
Tatsächlich erkennt man diese Betätigungsebene am besten anhand einer vergleichenden Betrachtung der Fig. 1 und 2. In der Betätigungsebene sind sowohl der Verriegelungshebel 3 als auch der Auslösehebel 1 angeordnet. Im Vergleich zu dieser von den vorerwähnten Elementen 1 , 3 bzw. der Abtriebsscheibe 7 beschriebenen Betätigungsebene steht der Dämpfungsanschlag 12 axial hervor. Dadurch ist sichergestellt, dass der Dämpfungsanschlag 12 nicht mit beispielsweise in der Betätigungsebene befindlichen oder hierin hineinragenden Elementen des Kraftfahrzeugtürverschlusses wechselwirken kann. Vielmehr ist gewährleistet, dass der Dämpfungsanschlag 12 einzig und allein mit dem Gehäuseanschlag 13 wechselwirkt, welcher gleichsam in die oberhalb der Betätigungsebene befindliche Anschlagebene ebenso wie der Dämpfungsanschlag 12 hineinragt. Diese Dämpfungsebene ist oberhalb der Zeichenebene in der Fig. 1 angeordnet und dient lediglich dazu, eine Wechselwirkung In fact, this operating level can best be seen from a comparative examination of FIGS. 1 and 2. Both the locking lever 3 and the release lever 1 are arranged in the actuation plane. Compared to this described by the aforementioned elements 1, 3 and the driven pulley 7 operating level of the damping stop 12 protrudes axially. This ensures that the damping stop 12 can not interact with elements of the motor vehicle door lock located, for example, in the operating plane or projecting therein. Rather, it is ensured that the damping stop 12 interacts solely and solely with the housing stop 13, which protrudes as it were in the stop plane located above the operating plane as well as the damping stop 12. This attenuation plane is arranged above the plane of the drawing in FIG. 1 and merely serves to effect an interaction
zwischen dem Dämpfungsanschlag 12 und dem Gehäuseanschlag 13 wie beschrieben sicherzustellen. between the damping stop 12 and the housing stop 13 as described.

Claims

Patentansprüche: claims:
1. Kraftfahrzeugtürverschluss, mit einem Gesperre, ferner mit einem elektrischen Antrieb (5, 6, 7) für das Gesperre, und mit wenigstens einem Anschlag (12) für den elektrischen Antrieb (5, 6, 7), d a d u r c h g e k e n n z e i c h n e t, dass der Anschlag (12) als am elektrischen Antrieb (5, 6, 7) angeordneter Dämpfungsanschlag (12) ausgebildet ist. 1. Motor vehicle door lock, with a locking mechanism, further comprising an electric drive (5, 6, 7) for the locking mechanism, and with at least one stop (12) for the electric drive (5, 6, 7), characterized in that the stop ( 12) as the electric drive (5, 6, 7) arranged damping stop (12) is formed.
2. Kraftfahrzeugtürverschluss nach Anspruch 1 , dadurch gekennzeichnet, dass der Dämpfungsanschlag (12) an einer Abtriebsscheibe (7) als Bestandteil des elektrischen Antriebes (5, 6, 7) angeordnet ist. 2. Motor vehicle door lock according to claim 1, characterized in that the damping stop (12) on a driven pulley (7) as part of the electric drive (5, 6, 7) is arranged.
3. Kraftfahrzeugtürverschluss nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Dämpfungsanschlag (12) an die Abtriebsscheibe (7) angeschlossen ist. 3. Motor vehicle door lock according to claim 1 or 2, characterized in that the damping stop (12) to the driven pulley (7) is connected.
4. Kraftfahrzeugtürverschluss nach dem Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Dämpfungsanschlag (12) und die Abtriebsscheibe (7) einstückig ausgelegt sind. 4. Motor vehicle door lock according to claims 1 to 3, characterized in that the damping stop (12) and the driven pulley (7) are designed in one piece.
5. Kraftfahrzeugtürverschluss nach Anspruch 4, dadurch gekennzeichnet, dass der Dämpfungsanschlag (12) an die Abtriebsscheibe (7) angeformt ist. 5. Motor vehicle door lock according to claim 4, characterized in that the damping stop (12) to the driven pulley (7) is integrally formed.
6. Kraftfahrzeugtürverschluss nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass der Dämpfungsanschlag (12) und die Abtriebsscheibe (7) in einem gemeinsamen Herstellungsvorgang, beispielsweise einem zweikomponenten Kunststoffspritzgießvorgang, produziert werden. 6. Motor vehicle door lock according to claim 4 or 5, characterized in that the damping stop (12) and the driven pulley (7) are produced in a common manufacturing process, for example a two-component plastic injection molding process.
7. Kraftfahrzeugtürverschluss nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Dämpfungsanschlag (12) radial im Vergleich zu einer Drehachse (A) der Abtriebsscheibe (7) angeordnet ist. 7. Motor vehicle door lock according to one of claims 1 to 6, characterized in that the damping stop (12) is arranged radially in comparison to a rotational axis (A) of the driven pulley (7).
8. Kraftfahrzeugtürverschluss nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Dämpfungsanschlag (12) am Außenumfang der Abtriebsscheibe (7) angeordnet ist. 8. Motor vehicle door lock according to one of claims 1 to 7, characterized in that the damping stop (12) on the outer circumference of the driven pulley (7) is arranged.
9. Kraftfahrzeugtürverschluss nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Dämpfungsanschlag (12) axial auf einer seitens der Abtriebsscheibe (7) definierten Betätigungsebene aufsteht. 9. Motor vehicle door lock according to one of claims 1 to 8, characterized in that the damping stop (12) stands up axially on an operating plane defined by the driven pulley (7).
10. Kraftfahrzeugtürverschluss nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Dämpfungsanschlag (12) mit wenigstens einem Gehäuseanschlag (13) wechselwirkt. 10. Motor vehicle door lock according to one of claims 1 to 9, characterized in that the damping stop (12) interacts with at least one housing stop (13).
11. Kraftfahrzeugtürverschluss nach Anspruch 10, dadurch gekennzeichnet, dass der Gehäuseanschlag (13) an einem Gehäusedeckel und/oder Schlosskasten eines Schlossgehäuses vorgesehen ist. 11. Motor vehicle door lock according to claim 10, characterized in that the housing stop (13) is provided on a housing cover and / or lock case of a lock housing.
12. Kraftfahrzeugtürverschluss nach Anspruch 10 oder 11 , dadurch gekennzeichnet, dass der Gehäuseanschlag (13) einstückig mit dem Gehäusedeckel und/oder Schlosskasten ausgebildet ist. 12. Motor vehicle door lock according to claim 10 or 11, characterized in that the housing stop (13) is formed integrally with the housing cover and / or lock case.
EP13725552.7A 2012-02-28 2013-02-26 Motor vehicle door lock Active EP2820213B1 (en)

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DE201220001960 DE202012001960U1 (en) 2012-02-28 2012-02-28 Motor vehicle door lock
PCT/DE2013/000105 WO2013127384A1 (en) 2012-02-28 2013-02-26 Motor vehicle door lock

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JP (1) JP6213929B2 (en)
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CA2865680A1 (en) 2013-09-06
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DE202012001960U1 (en) 2013-05-29
KR20140130176A (en) 2014-11-07
MX2014010284A (en) 2015-04-08
US20150015004A1 (en) 2015-01-15
CN104271858A (en) 2015-01-07
US20190234116A1 (en) 2019-08-01
EP2820213B1 (en) 2018-10-10
JP2015515557A (en) 2015-05-28
RU2014137969A (en) 2016-04-20
JP6213929B2 (en) 2017-10-18
IN2014MN01721A (en) 2015-05-29
WO2013127384A1 (en) 2013-09-06

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