EP3679208B1 - Vehicle door lock - Google Patents

Vehicle door lock Download PDF

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Publication number
EP3679208B1
EP3679208B1 EP18773336.5A EP18773336A EP3679208B1 EP 3679208 B1 EP3679208 B1 EP 3679208B1 EP 18773336 A EP18773336 A EP 18773336A EP 3679208 B1 EP3679208 B1 EP 3679208B1
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EP
European Patent Office
Prior art keywords
pawl
spring
vehicle door
actuating lever
motor vehicle
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.)
Active
Application number
EP18773336.5A
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German (de)
French (fr)
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EP3679208A1 (en
Inventor
Andrej GRZONKA
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
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Kiekert AG
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Publication date
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Publication of EP3679208A1 publication Critical patent/EP3679208A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/26—Cooperation between bolts and detents
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0403—Wound springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0486—A single spring working on more than one element

Definitions

  • the invention relates to a motor vehicle door lock, with a locking mechanism consisting essentially of a rotary latch and a pawl, further with a pawl spring for loading the pawl in the closing direction, and with an actuating lever for opening the locking mechanism.
  • a motor vehicle door lock of the structure described above is for example in DE 10 2008 039 240 A1 the applicant explained in detail.
  • a so-called two-ratchet mechanism is implemented.
  • a release lever interacts during its movement with a driving pin of the first pawl.
  • the lateral pawl spring forms an abutment between the driving pin and the release lever during interaction.
  • the pawl spring is received in a receptacle of the first pawl.
  • a further second pawl is then implemented, which essentially ensures that the first pawl is secured.
  • EP2 860 335 A2 a motor vehicle lock according to the preamble of claim 1 is disclosed.
  • the procedure for motor vehicle door locks is such that the rotary latch and, if necessary, the pawl are each pretensioned with an associated spring, the rotary latch spring and the pawl spring, so that both the rotary latch and the pawl are safely returned to their normal position.
  • the pawl spring serves to act on the pawl so that the pawl is acted upon in the closing direction.
  • the closing direction of the pawl corresponds to the fact that it can block the catch.
  • the ratchet spring on the ratchet typically operates to move the ratchet to its open position when disengaged from the pawl. This is generally ensured by a release lever which lifts the pawl from its engagement with the catch. The release lever is in turn generally acted upon by the operating lever to open the locking mechanism. It is also possible that the release lever and the actuating lever coincide or form and define a continuously one-piece lever.
  • the actuating lever can be acted upon manually to open the locking mechanism and, in this context, pivot the release lever in such a way that it lifts the pawl out of its engagement with the rotary latch.
  • the actuating lever can also be controlled by an electric motor, as is the case with so-called “electrical opening” or generally with an electric lock.
  • the actuating lever via the release lever again ensures that the pawl is lifted off the rotary latch, so that the rotary latch can then open with the aid of a spring. A previously caught locking bolt is released.
  • the motor vehicle door or motor vehicle hatch equipped with the motor vehicle door lock in question is the same applies to the motor vehicle door or motor vehicle hatch equipped with the motor vehicle door lock in question.
  • the pawl spring acting on the pawl in the closing direction can also ensure that the pawl is moved back and an additional bouncing noise, for example generated when hitting a pre-locking recess of the rotary latch. In other words, in this case the pawl was not lifted off the catch quickly enough and the pawl spring is also responsible for the double clicking noise.
  • the invention is based on the technical problem of further developing a motor vehicle door lock of the structure described at the outset and the form presented at the outset in such a way that an acoustically optimized solution is observed and, in particular, the "double click noise" observed in the prior art is eliminated.
  • a generic motor vehicle door lock within the scope of the invention is characterized in that the actuating lever for opening the locking mechanism is also set up to act on the pawl spring and has a projection that interacts with the pawl spring.
  • the projection on the actuating lever does not act on the pawl spring until the pawl has been lifted from its engagement with the catch.
  • the actuating lever first of all ensures, as usual via the release lever, that the pawl is lifted from its engagement with the rotary latch.
  • the additional projection provided on the actuating lever ensures that in Connection hereto the pawl spring is acted upon. This means that the pawl spring is lifted off the pawl with the help of the projection on the actuating lever.
  • the actuating lever with its projection acts on the pawl spring and lifts it off the pawl after the pawl has been lifted from its engagement with the rotary latch, the pawl is not (or no longer) subjected to a force in the closing direction, at least for a short time. As a result, for example, it cannot (any longer) bounce back into the pre-locking recess of the rotary latch moving in the opening direction, so that another clicking noise is avoided according to the invention.
  • the pawl spring can be placed back on the pawl at the latest when the actuating lever is in the basic position and pressurize them in the closing direction.
  • the pawl is only temporarily free from the pawl spring within the scope of the invention, namely when there is a risk of the pawl rebounding in the direction of the pre-locking recess of the rotary latch moving along the pawl during the opening process.
  • the pawl creates anyway on its outer circumference and remains in this position until the locking mechanism is closed again. This is ensured by the pawl spring, which then again acts on the pawl in the closing direction. This is where the main advantages can be seen.
  • the pawl spring is usually designed as a torsion spring.
  • the pawl spring generally has two legs.
  • One leg of the pawl spring is designed as a pawl arm and the other leg of the pawl spring is designed as a fastening arm.
  • the mounting arm typically secures the pawl spring as a whole.
  • the fastening arm is generally fixed to a housing of the motor vehicle door lock.
  • the pawl arm of the torsion spring generally rests against the pawl, mostly on its outer circumference, and overall ensures that the pawl is acted upon in the closing direction.
  • the projection on the actuating lever acts on the pawl spring, the projection ensures that the pawl arm of the pawl spring is lifted from its abutment on the outer circumference of the pawl.
  • the projection on the actuating lever is aligned and oriented essentially perpendicularly with respect to an actuating lever plane.
  • a projection can easily be formed on the actuating lever in the course of its manufacturing process.
  • there is also the possibility of subsequently realizing and converting the projection for example by using a screw inserted in the actuating lever as such a projection.
  • the actuating lever can be both an external actuating lever and an internal actuating lever.
  • the actuating lever is designed as an external actuating lever.
  • the design is often such that the actuating lever or external actuating lever acts on the locking mechanism with the previously mentioned release lever being interposed.
  • the invention also includes embodiments in which the actuating lever and the release lever are designed in one piece or as a common lever.
  • the actuating lever can be pivoted essentially parallel to a locking plane.
  • the design is typically such that the actuating lever at least partially covers the pawl spring.
  • the projection aligned perpendicular to the plane of the actuating lever can interact particularly simply and intuitively with the pawl arm of the torsion spring and lift the pawl arm from its contact with the outer circumference of the pawl, as has already been described.
  • a motor vehicle door lock is made available which is acoustically optimized while at the same time taking into account a structurally simple and cost-effective design.
  • the solution according to the invention can be realized and implemented both for an internal actuating lever chain and for an external actuating lever chain and for both lever chains.
  • the invention can in principle also be used in connection with an electric lock, ie in the event that the actuating lever is acted upon with the aid of an electric drive to open the locking mechanism.
  • the actuating lever not only ensures that the locking mechanism is opened. Rather, the actuating lever takes on an additional dual function in such a way that it acts on the Pawl spring is set up.
  • the control lever is equipped with the projection which interacts with the ratchet spring. The actuating lever with its projection ensures that the pawl spring is lifted off the pawl, specifically when the pawl itself has left its engagement position with the catch. In this way, the "double click noise" often observed in practice is effectively prevented and no longer occurs according to the invention. This is where the main advantages can be seen.
  • a motor vehicle door lock is shown.
  • the motor vehicle door lock has a locking mechanism 1 , 2 consisting of a rotary latch 1 and a pawl 2 .
  • the rotary latch 1 can be pivoted about an axis 3 .
  • the pawl 2 can also be pivoted about an axis 4 .
  • Both axes 3, 4 are provided and defined by respective bearing bolts anchored in a lock case 5 indicated for rotatable mounting.
  • the lock case 5 is closed and covered against environmental influences with the aid of a lock cover, not shown.
  • the basic structure also includes a release lever 6, which is mounted on the same axis as the pawl 2.
  • the release lever 6 interacts with the pawl 2 via a bevel 7.
  • an actuation lever 8 is realized, which in the exemplary embodiment, and not restrictively, is designed as an external actuation lever.
  • the actuating lever 8 can be pivoted about an axis 9 which in turn is made available and defined by a bearing bolt fixed in the lock case 5 .
  • the rotary latch 1 is equipped with a rotary latch spring that is not explicitly shown.
  • the rotary latch spring ensures that the rotary latch 1 pivots open about its axis 3 after lifting the pawl 2 in the counterclockwise direction indicated by an arrow in the single figure and releases a previously caught locking bolt.
  • it is necessary to act on the actuating lever 8 in such a way that it performs a clockwise movement about its axis 9, which is also indicated in the single figure.
  • actuating lever 8 in the exemplary embodiment is an external actuating lever
  • this clockwise movement of the actuating lever 8 is initiated by an external door handle 10 working on the actuating lever 8 in question or the external actuating lever in a corresponding manner, as is only indicated in the single figure .
  • the clockwise movement of the actuating lever 8 or the external actuating lever has the result that a chamfer 11 on the actuating lever 8 comes into engagement with the release lever 6 .
  • the release lever 6 is pivoted about its axis 4 in the counterclockwise direction indicated. Since the release lever 6 can work with its projection 7 on the pawl 2 or interacts with it, the pawl 2, which is mounted coaxially with the release lever 6 about the common axis 4, is also pivoted counterclockwise.
  • the pawl 2 is released from an indicated main position on the catch 1 .
  • the rotary latch 1 then opens with the aid of a spring and, as described, moves counterclockwise about its axis 3 and, in the fully opened state, releases a locking bolt that was previously caught and not expressly shown. Since the motor vehicle door lock is mounted inside or on a motor vehicle door or hatch, while the locking bolt, not shown, is usually mounted on the bodywork an associated motor vehicle door or flap can then be opened.
  • the pawl spring 13 is designed as a torsion spring in the exemplary embodiment.
  • the ratchet spring or leg spring 13 is composed of a latch arm 13a as one leg and a fastening arm 13b as the other leg. Both legs 13a, 13b are connected to a coiled spring section 13c, which ensures that the pawl spring 13 is fixed to the lock case 5 as a whole.
  • the two legs 13a, 13b of the leg spring or the pawl arm 13a and the fastening arm 13b as a whole enclose an acute angle between them, which is in no way limiting.
  • the fastening arm 13b typically and additionally or alternatively ensures that the torsion spring or the pawl spring 13 is fixed to the lock case 5.
  • the pawl spring 13 ensures that the pawl 2 is acted upon in the closing direction.
  • the closing direction corresponds to a clockwise movement of the pawl 2 about its axis 4, in such a way that the pawl 2 either falls into the indicated main latching recess or the additional preliminary latching recess of the rotary latch 1 and can also occur.
  • the clockwise opening movement of the actuating lever 8 about the axis 9 ensures that the fold 11 first acts on the release lever 6 and as a result the pawl 2 is lifted from its engagement with the rotary latch 3 .
  • the projection 12 additionally provided and realized on the actuating lever 8 comes into engagement with the pawl arm 13a of the torsion spring or pawl spring 13.
  • a continued movement of the actuating lever 8 clockwise about the axis 9 now has the result that the projection 12 on the actuating lever 8 lifts the pawl arm 13a of the torsion spring or pawl spring 13 from its contact with the outer circumference of the pawl 2. This prevents the pawl 2 from bouncing back against the rotary latch 1 during the opening process initiated by its lifting off the rotary latch 1 .
  • the projection 12 is aligned essentially perpendicular to an actuating lever plane.
  • the level of the actuating lever is defined by the surface area of the actuating lever 8 in the example and in the present case largely coincides with the plane of the drawing.
  • the design is such that the actuating lever 8 is designed to be pivotable essentially parallel to a locking plane.
  • the ratchet level spanned by the ratchet 1, 2 also coincides with the plane of the drawing or is aligned and oriented parallel thereto.
  • the actuating lever 8 Since the actuating lever 8 at least partially covers the pawl spring 13 , any malfunctions are avoided and the pawl spring 13 is arranged in a protected manner inside the lock case 5 . As soon as the actuating lever 8 has completed the opening process of the locking mechanism 1, 2 and has moved against a stop, not shown in detail, for this purpose, the actuating lever 8 returns, usually with spring support, to its initial position shown in the single figure.

Description

Die Erfindung betrifft ein Kraftfahrzeugtürschloss, mit einem Gesperre aus im Wesentlichen Drehfalle und Sperrklinke, ferner mit einer Sperrklinkenfeder zur Beaufschlagung der Sperrklinke in Schließrichtung, und mit einem Betätigungshebel zum Öffnen des Gesperres.The invention relates to a motor vehicle door lock, with a locking mechanism consisting essentially of a rotary latch and a pawl, further with a pawl spring for loading the pawl in the closing direction, and with an actuating lever for opening the locking mechanism.

Ein Kraftfahrzeugtürschloss des eingangs beschriebenen Aufbaus wird beispielsweise in der DE 10 2008 039 240 A1 der Anmelderin im Detail erläutert. An dieser Stelle ist ein sogenanntes Zweiklinkengesperre realisiert. Ein Auslösehebel wechselwirkt während seiner Bewegung mit einem Mitnehmerzapfen der ersten Sperrklinke. Die seitliche Sperrklinkenfeder bildet dabei eine Anlage zwischen dem Mitnehmerzapfen und dem Auslösehebel während des Zusammenwirkens. Dazu wird die Sperrklinkenfeder in einer Aufnahme der ersten Sperrklinke aufgenommen. Neben der ersten Sperrklinke ist dann noch eine weitere zweite Sperrklinke realisiert, welche im Wesentlichen für die Sicherung der ersten Sperrklinke sorgt. In der EP2 860 335 A2 wird ein Kraftfahrzeugschloss gemäß des Oberbegriffs des Anspruchs 1 offenbart.A motor vehicle door lock of the structure described above is for example in DE 10 2008 039 240 A1 the applicant explained in detail. At this point, a so-called two-ratchet mechanism is implemented. A release lever interacts during its movement with a driving pin of the first pawl. The lateral pawl spring forms an abutment between the driving pin and the release lever during interaction. For this purpose, the pawl spring is received in a receptacle of the first pawl. In addition to the first pawl, a further second pawl is then implemented, which essentially ensures that the first pawl is secured. In the EP2 860 335 A2 a motor vehicle lock according to the preamble of claim 1 is disclosed.

Allgemein wird bei Kraftfahrzeugtürschlössern so vorgegangen, dass die Drehfalle und gegebenenfalls die Sperrklinke jeweils mit einer zugehörigen Feder, der Drehfallenfeder und der Sperrklinkenfeder, so vorgespannt werden, dass sowohl die Drehfalle als auch die Sperrklinke sicher in ihre Grundstellung zurückgeführt werden. Insbesondere dient die Sperrklinkenfeder zur Beaufschlagung der Sperrklinke dazu, dass die Sperrklinke in Schließrichtung beaufschlagt wird. Die Schließrichtung der Sperrklinke korrespondiert dazu, dass diese die Drehfalle blockieren kann.In general, the procedure for motor vehicle door locks is such that the rotary latch and, if necessary, the pawl are each pretensioned with an associated spring, the rotary latch spring and the pawl spring, so that both the rotary latch and the pawl are safely returned to their normal position. In particular, the pawl spring serves to act on the pawl so that the pawl is acted upon in the closing direction. The closing direction of the pawl corresponds to the fact that it can block the catch.

Demgegenüber arbeitet die Drehfallenfeder auf die Drehfalle typischerweise in der Art, dass diese in ihre geöffnete Position bewegt wird, wenn sie von der Sperrklinke freikommt. Hierfür sorgt im Allgemeinen ein Auslösehebel, welcher die Sperrklinke von ihrem Eingriff mit der Drehfalle abhebt. Der Auslösehebel wird seinerseits im Allgemeinen von dem Betätigungshebel zum Öffnen des Gesperres beaufschlagt. Es ist auch möglich, dass der Auslösehebel und der Betätigungshebel zusammenfallen bzw. einen durchgängig einteiligen Hebel bilden und definieren.In contrast, the ratchet spring on the ratchet typically operates to move the ratchet to its open position when disengaged from the pawl. This is generally ensured by a release lever which lifts the pawl from its engagement with the catch. The release lever is in turn generally acted upon by the operating lever to open the locking mechanism. It is also possible that the release lever and the actuating lever coincide or form and define a continuously one-piece lever.

Der Betätigungshebel kann dabei insgesamt manuell zum Öffnen des Gesperres beaufschlagt werden und in diesem Zusammenhang den Auslösehebel derart verschwenken, dass dieser die Sperrklinke von ihrem Eingriff mit der Drehfalle abhebt. Grundsätzlich kann der Betätigungshebel aber auch elektromotorisch angesteuert werden, wie dies beim sogenannten "elektrischen Öffnen" oder allgemein bei einem Elektroschloss vorgenommen wird. In diesem Fall sorgt der Betätigungshebel über den Auslösehebel erneut dafür, dass die Sperrklinke von der Drehfalle abgehoben wird, so dass die Drehfalle im Anschluss hieran federunterstützt öffnen kann. Ein zuvor gefangener Schließbolzen kommt frei. Gleiches gilt für die mit dem fraglichen Kraftfahrzeugtürschloss ausgerüstete Kraftfahrzeugtür oder Kraftfahrzeugklappe.The actuating lever can be acted upon manually to open the locking mechanism and, in this context, pivot the release lever in such a way that it lifts the pawl out of its engagement with the rotary latch. In principle, however, the actuating lever can also be controlled by an electric motor, as is the case with so-called "electrical opening" or generally with an electric lock. In this case, the actuating lever via the release lever again ensures that the pawl is lifted off the rotary latch, so that the rotary latch can then open with the aid of a spring. A previously caught locking bolt is released. The same applies to the motor vehicle door or motor vehicle hatch equipped with the motor vehicle door lock in question.

Der Stand der Technik hat sich grundsätzlich bewährt. Allerdings wird bei einem langsamen Öffnungsvorgang des Gesperres, das heißt, einem langsamen Abheben der Sperrklinke von der Drehfalle, oftmals in der Praxis ein sogenannter "Doppelklack" als Geräusch beobachtet. Ein solcher "Doppelklack" erklärt sich zum einen dadurch, dass die Sperrklinke von der Drehfalle bzw. einer zugehörigen Hauptrastausnehmung abgehoben wird und ein erstes Klackgeräusch erzeugt.The state of the art has basically proven itself. However, with a slow opening process of the locking mechanism, that is, a slow lifting of the pawl from the rotary latch, a so-called "double click" noise is often observed in practice. Such a "double click" is explained on the one hand by the fact that the pawl is lifted off the rotary latch or an associated main locking recess and produces a first clicking noise.

Wird die zugehörige Kraftfahrzeugtür in diesem Zusammenhang durch beispielsweise von umlaufenden Türgummidichtungen aufgebauten hohen Öffnungsdruck schnell geöffnet, so kann die die Sperrklinke in Schließrichtung beaufschlagende Sperrklinkenfeder zum anderen dafür sorgen, dass die Sperrklinke zurückbewegt wird und ein ergänzendes Prellgeräusch beispielsweise beim Auftreffen auf eine Vorrastausnehmung der Drehfalle erzeugt. Das heißt, in diesem Fall ist die Sperrklinke nicht schnell genug von der Drehfalle abgehoben worden und sorgt zusätzlich die Sperrklinkenfeder für dieses zweifache Klackgeräusch.If the associated motor vehicle door is opened quickly in this context, for example due to high opening pressure built up by circumferential door rubber seals, the pawl spring acting on the pawl in the closing direction can also ensure that the pawl is moved back and an additional bouncing noise, for example generated when hitting a pre-locking recess of the rotary latch. In other words, in this case the pawl was not lifted off the catch quickly enough and the pawl spring is also responsible for the double clicking noise.

Da Kraftfahrzeugtürschlösser typischerweise im Innern eines Türflügels oder einer Klappe befestigt werden, wobei der Innenraum einerseits als Resonanzkörper für solche Geräusche wirkt und andererseits eine zusätzliche Geräuschübertragung durch Körperschall auf die Kraftfahrzeugkarosserie stattfindet, werden solche Geräusche von einem etwaigen Benutzer als unnatürlich und folglich störend betrachtet. Denn allenfalls ein einmaliges Klackgeräusch wird bei einem zuverlässig und richtig funktionierenden Kraftfahrzeugtürschloss akzeptiert. Hier will die Erfindung insgesamt Abhilfe schaffen.Since motor vehicle door locks are typically fastened inside a door leaf or a flap, with the interior acting on the one hand as a resonance body for such noises and on the other hand an additional noise transmission through structure-borne noise to the motor vehicle body, such noises are regarded by a potential user as unnatural and therefore annoying. Because at most a one-off clicking noise is accepted with a reliably and correctly functioning motor vehicle door lock. This is where the invention aims to remedy the situation overall.

Der Erfindung liegt das technische Problem zugrunde, ein Kraftfahrzeugtürschloss des eingangs beschriebenen Aufbaus und der einleitend dargelegten Ausprägung so weiter zu entwickeln, dass eine akustisch optimierte Lösung beobachtet wird und insbesondere das im Stand der Technik beobachtete "Doppelklackgeräusch" wegfällt.The invention is based on the technical problem of further developing a motor vehicle door lock of the structure described at the outset and the form presented at the outset in such a way that an acoustically optimized solution is observed and, in particular, the "double click noise" observed in the prior art is eliminated.

Zur Lösung dieser technischen Problemstellung ist ein gattungsgemäßes Kraftfahrzeugtürschloss im Rahmen der Erfindung dadurch gekennzeichnet, dass der Betätigungshebel zum Öffnen des Gesperres zusätzlich zur Beaufschlagung der Sperrklinkenfeder eingerichtet ist, und über einen Vorsprung verfügt, der mit der Sperrklinkenfeder wechselwirkt. Erfindungsgemäß beaufschlagt der Vorsprung am Betätigungshebel die Sperrklinkenfeder erst dann, wenn die Sperrklinke von ihrem Eingriff mit der Drehfalle abgehoben ist. Als Folge hiervon sorgt der Betätigungshebel wie üblich über den Auslösehebel zunächst einmal dafür, dass die Sperrklinke von ihrem Eingriff mit der Drehfalle abgehoben wird. Sobald dies der Fall ist, stellt der zusätzlich am Betätigungshebel vorgesehene Vorsprung sicher, dass im Anschluss hieran die Sperrklinkenfeder beaufschlagt wird. Das bedeutet, dass mit Hilfe des Vorsprunges am Betätigungshebel die Sperrklinkenfeder von der Sperrklinke abgehoben wird.To solve this technical problem, a generic motor vehicle door lock within the scope of the invention is characterized in that the actuating lever for opening the locking mechanism is also set up to act on the pawl spring and has a projection that interacts with the pawl spring. According to the invention, the projection on the actuating lever does not act on the pawl spring until the pawl has been lifted from its engagement with the catch. As a result of this, the actuating lever first of all ensures, as usual via the release lever, that the pawl is lifted from its engagement with the rotary latch. As soon as this is the case, the additional projection provided on the actuating lever ensures that in Connection hereto the pawl spring is acted upon. This means that the pawl spring is lifted off the pawl with the help of the projection on the actuating lever.

Auf diese Weise wird erfindungsgemäß ein lediglich einfaches "Klackgeräusch" beim Öffnen des Gesperres beobachtet und tritt akustisch auf. Dieses einfache Klackgeräusch stellt sich dadurch ein, dass die Sperrklinke typischerweise aus ihrer Hauptrast in Anlage an der Drehfalle abgehoben wird. Jetzt kann die Drehfalle federunterstützt öffnen. Zugleich sorgen etwaige von einer umlaufenden Gummidichtung aufgebaute Rückstellkräfte dafür, dass das Gesperre mehr oder minder schnell eine Öffnung erfährt.In this way, according to the invention, only a simple “clicking noise” is observed when the locking mechanism is opened and occurs acoustically. This simple clicking noise occurs because the pawl is typically lifted out of its main position in contact with the catch. The rotary latch can now open with the help of a spring. At the same time, any restoring forces built up by a circumferential rubber seal ensure that the locking mechanism opens more or less quickly.

Da erfindungsgemäß der Betätigungshebel mit seinem Vorsprung nach Abheben der Sperrklinke von ihrem Eingriff mit der Drehfalle die Sperrklinkenfeder beaufschlagt und von der Sperrklinke abhebt, wird die Sperrklinke zumindest kurzfristig nicht (mehr) mit Hilfe der Sperrklinkenfeder in Schließrichtung kraftbeaufschlagt. Dadurch kann sie beispielsweise nicht (mehr) in die Vorrastausnehmung der in Öffnungsrichtung sich bewegenden Drehfalle zurückprellen, so dass ein weiteres Klackgeräusch erfindungsgemäß vermieden wird.Since, according to the invention, the actuating lever with its projection acts on the pawl spring and lifts it off the pawl after the pawl has been lifted from its engagement with the rotary latch, the pawl is not (or no longer) subjected to a force in the closing direction, at least for a short time. As a result, for example, it cannot (any longer) bounce back into the pre-locking recess of the rotary latch moving in the opening direction, so that another clicking noise is avoided according to the invention.

Da der Betätigungshebel unmittelbar nach Abheben der Sperrklinke typischerweise federunterstützt in seine Ausgangsposition zurückgestellt wird, und zwar sowohl bei einer manuellen Beaufschlagung als auch dann, wenn der Betätigungshebel motorisch verstellt wird, kann die Sperrklinkenfeder spätestens bei in Grundstellung befindlichem Betätigungshebel wieder an die Sperrklinke angelegt werden und diese in Schließrichtung beaufschlagen. Das heißt, die Sperrklinke ist im Rahmen der Erfindung lediglich kurzfristig von der Sperrklinkenfeder frei, nämlich insgesamt dann, wenn ein Rückprellen der Sperrklinke in Richtung der Vorrastausnehmung der an der Sperrklinke entlang bewegten Drehfalle beim Öffnungsvorgang zu befürchten ist. Sobald die Drehfalle mehr oder minder vollständig geöffnet ist, legt sich die Sperrklinke ohnehin an ihren Außenumfang an und verbleibt so lange in dieser Position, bis das Gesperre erneut geschlossen wird. Hierfür sorgt die dann erneut die Sperrklinke in Schließrichtung beaufschlagende Sperrklinkenfeder. Hierin sind die wesentlichen Vorteile zu sehen.Since the actuating lever is typically spring-loaded back into its starting position immediately after lifting the pawl, both when it is applied manually and when the actuating lever is adjusted by a motor, the pawl spring can be placed back on the pawl at the latest when the actuating lever is in the basic position and pressurize them in the closing direction. This means that the pawl is only temporarily free from the pawl spring within the scope of the invention, namely when there is a risk of the pawl rebounding in the direction of the pre-locking recess of the rotary latch moving along the pawl during the opening process. As soon as the Catch is more or less fully open, the pawl creates anyway on its outer circumference and remains in this position until the locking mechanism is closed again. This is ensured by the pawl spring, which then again acts on the pawl in the closing direction. This is where the main advantages can be seen.

Üblicherweise ist die Sperrklinkenfeder als Schenkelfeder ausgebildet. In diesem Zusammenhang verfügt die Sperrklinkenfeder im Allgemeinen über zwei Schenkel bzw. Federschenkel. Dabei ist der eine Schenkel der Sperrklinkenfeder als Klinkenarm und der andere Schenkel der Sperrklinkenfeder als Befestigungsarm ausgebildet. Der Befestigungsarm sorgt typischerweise für die Festlegung der Sperrklinkenfeder im Ganzen. Dazu ist der Befestigungsarm im Allgemeinen an einem Gehäuse des Kraftfahrzeugtürschlosses festgelegt.The pawl spring is usually designed as a torsion spring. In this regard, the pawl spring generally has two legs. One leg of the pawl spring is designed as a pawl arm and the other leg of the pawl spring is designed as a fastening arm. The mounting arm typically secures the pawl spring as a whole. For this purpose, the fastening arm is generally fixed to a housing of the motor vehicle door lock.

Demgegenüber liegt der Klinkenarm der Schenkelfeder im Allgemeinen an der Sperrklinke an, und zwar meistens an deren Außenumfang, und sorgt insgesamt dafür, dass die Sperrklinke in Schließrichtung beaufschlagt wird. Sobald der Vorsprung am Betätigungshebel die Sperrklinkenfeder beaufschlagt, sorgt der Vorsprung dafür, dass der Klinkenarm der Sperrklinkenfeder von seiner Anlage am Außenumfang der Sperrklinke abgehoben wird.In contrast, the pawl arm of the torsion spring generally rests against the pawl, mostly on its outer circumference, and overall ensures that the pawl is acted upon in the closing direction. As soon as the projection on the actuating lever acts on the pawl spring, the projection ensures that the pawl arm of the pawl spring is lifted from its abutment on the outer circumference of the pawl.

Dazu ist der Vorsprung am Betätigungshebel im Wesentlichen senkrecht gegenüber einer Betätigungshebelebene ausgerichtet und orientiert. Ein solcher Vorsprung kann problemlos im Zuge des Fertigungsvorganges des Betätigungshebels an diesem ausgebildet werden. Selbstverständlich besteht auch die Möglichkeit, den Vorsprung nachträglich zu realisieren und umzusetzen, indem beispielsweise eine in den Betätigungshebel eingesetzte Schraube als ein solcher Vorsprung fungiert.For this purpose, the projection on the actuating lever is aligned and oriented essentially perpendicularly with respect to an actuating lever plane. Such a projection can easily be formed on the actuating lever in the course of its manufacturing process. Of course, there is also the possibility of subsequently realizing and converting the projection, for example by using a screw inserted in the actuating lever as such a projection.

Bei dem Betätigungshebel kann es sich sowohl um einen Außenbetätigungshebel als auch einen Innenbetätigungshebel handeln. Im Allgemeinen ist der Betätigungshebel als Außenbetätigungshebel ausgebildet. Außerdem ist die Auslegung oftmals so getroffen, dass der Betätigungshebel bzw. Außenbetätigungshebel unter Zwischenschaltung des zuvor bereits angesprochenen Auslösehebels das Gesperre beaufschlagt. Selbstverständlich werden auch Ausführungsformen von der Erfindung mit umfasst, dass der Betätigungshebel und der Auslösehebel einstückig bzw. als gemeinsamer Hebel ausgebildet sind.The actuating lever can be both an external actuating lever and an internal actuating lever. In general, the actuating lever is designed as an external actuating lever. In addition, the design is often such that the actuating lever or external actuating lever acts on the locking mechanism with the previously mentioned release lever being interposed. Of course, the invention also includes embodiments in which the actuating lever and the release lever are designed in one piece or as a common lever.

Der Betätigungshebel lässt sich im Wesentlichen parallel zu einer Gesperreebene verschwenken. Schlussendlich ist die Auslegung typischerweise so getroffen, dass der Betätigungshebel die Sperrklinkenfeder zumindest teilweise überdeckt. Dadurch kann der senkrecht gegenüber der Betätigungshebelebene ausgerichtete Vorsprung besonders einfach und intuitiv mit dem Klinkenarm der Schenkelfeder wechselwirken und den Klinkenarm von seiner Anlage am Außenumfang der Sperrklinke abheben, wie dies bereits beschrieben wurde.The actuating lever can be pivoted essentially parallel to a locking plane. Finally, the design is typically such that the actuating lever at least partially covers the pawl spring. As a result, the projection aligned perpendicular to the plane of the actuating lever can interact particularly simply and intuitively with the pawl arm of the torsion spring and lift the pawl arm from its contact with the outer circumference of the pawl, as has already been described.

Im Ergebnis wird ein Kraftfahrzeugtürschloss zur Verfügung gestellt, welches akustisch optimiert ist, und zwar zugleich unter Berücksichtigung eines konstruktiv einfachen und kostengünstigen Aufbaus. Die erfindungsgemäße Lösung lässt sich dabei sowohl für eine Innenbetätigungshebelkette als auch für eine Außenbetätigungshebelkette als auch für beide Hebelketten realisieren und umsetzen. Neben einer manuellen Beaufschlagung des Gesperres kann die Erfindung grundsätzlich auch im Zusammenhang mit einem Elektroschloss zum Einsatz kommen, also für den Fall, dass der Betätigungshebel mit Hilfe eines elektrischen Antriebes zum Öffnen des Gesperres beaufschlagt wird.As a result, a motor vehicle door lock is made available which is acoustically optimized while at the same time taking into account a structurally simple and cost-effective design. The solution according to the invention can be realized and implemented both for an internal actuating lever chain and for an external actuating lever chain and for both lever chains. In addition to a manual actuation of the locking mechanism, the invention can in principle also be used in connection with an electric lock, ie in the event that the actuating lever is acted upon with the aid of an electric drive to open the locking mechanism.

In diesen sämtlichen Fällen sorgt der Betätigungshebel nicht nur für eine Öffnung des Gesperres. Vielmehr übernimmt der Betätigungshebel eine zusätzliche zweifache Funktion derart, dass er zur Beaufschlagung der Sperrklinkenfeder eingerichtet ist. Tatsächlich ist der Betätigungshebel zu diesem Zweck mit dem Vorsprung ausgerüstet, welcher mit der Sperrklinkenfeder wechselwirkt. Dabei sorgt der Betätigungshebel mit seinem Vorsprung dafür, dass die Sperrklinkenfeder von der Sperrklinke abgehoben wird, und zwar dann, wenn die Sperrklinke selbst ihre Eingriffsposition mit der Drehfalle verlassen hat. Auf diese Weise wird das in der Praxis oftmals beobachtete "Doppelklackgeräusch" wirkungsvoll verhindert und tritt erfindungsgemäß nicht mehr auf. Hierin sind die wesentlichen Vorteile zu sehen.In all of these cases, the actuating lever not only ensures that the locking mechanism is opened. Rather, the actuating lever takes on an additional dual function in such a way that it acts on the Pawl spring is set up. In fact, for this purpose, the control lever is equipped with the projection which interacts with the ratchet spring. The actuating lever with its projection ensures that the pawl spring is lifted off the pawl, specifically when the pawl itself has left its engagement position with the catch. In this way, the "double click noise" often observed in practice is effectively prevented and no longer occurs according to the invention. This is where the main advantages can be seen.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. Die einzige Figur zeigt ein erfindungsgemäßes Kraftfahrzeugtürschloss schematisch, reduziert auf die wesentlichen Bauteile.The invention is explained in more detail below with reference to a drawing that merely shows an exemplary embodiment. The only figure shows a motor vehicle door lock according to the invention schematically, reduced to the essential components.

In der einzigen Figur ist ein Kraftfahrzeugtürschloss dargestellt. Das Kraftfahrzeugtürschloss verfügt über ein Gesperre 1, 2 aus Drehfalle 1 und Sperrklinke 2. Die Drehfalle 1 kann um eine Achse 3 verschwenkt werden. Die Sperrklinke 2 lässt sich um eine Achse 4 ebenfalls verschwenken. Beide Achsen 3, 4 werden von in einem angedeuteten Schlosskasten 5 verankerten jeweiligen Lagerbolzen zur drehbaren Lagerung zur Verfügung gestellt und definiert.In the single figure, a motor vehicle door lock is shown. The motor vehicle door lock has a locking mechanism 1 , 2 consisting of a rotary latch 1 and a pawl 2 . The rotary latch 1 can be pivoted about an axis 3 . The pawl 2 can also be pivoted about an axis 4 . Both axes 3, 4 are provided and defined by respective bearing bolts anchored in a lock case 5 indicated for rotatable mounting.

Der Schlosskasten 5 wird mit Hilfe eines nicht dargestellten Schlossdeckels gegenüber Umwelteinflüssen verschlossen und abgedeckt. Zum grundsätzlichen Aufbau gehört noch ein Auslösehebel 6, welcher achsgleich im Vergleich zur Sperrklinke 2 gelagert ist. Der Auslösehebel 6 wechselwirkt über eine Abkantung 7 mit der Sperrklinke 2. Außerdem ist noch ein Betätigungshebel 8 realisiert, der im Ausführungsbeispiel und nicht einschränkend als Außenbetätigungshebel ausgebildet ist. Der Betätigungshebel 8 kann um eine Achse 9 verschwenkt werden, die wiederum durch einen im Schlosskasten 5 festgelegten Lagerbolzen zur Verfügung gestellt und definiert wird.The lock case 5 is closed and covered against environmental influences with the aid of a lock cover, not shown. The basic structure also includes a release lever 6, which is mounted on the same axis as the pawl 2. The release lever 6 interacts with the pawl 2 via a bevel 7. In addition, an actuation lever 8 is realized, which in the exemplary embodiment, and not restrictively, is designed as an external actuation lever. The actuating lever 8 can be pivoted about an axis 9 which in turn is made available and defined by a bearing bolt fixed in the lock case 5 .

Die Drehfalle 1 ist mit einer nicht ausdrücklich dargestellten Drehfallenfeder ausgerüstet. Die Drehfallenfeder sorgt dafür, dass die Drehfalle 1 nach Abheben der Sperrklinke 2 im in der einzigen Figur durch einen Pfeil angedeuteten Gegenuhrzeigersinn um ihre Achse 3 aufschwenkt und einen zuvor gefangenen Schließbolzen freigibt. Um das Gesperre 1, 2 zu öffnen, ist es erforderlich, den Betätigungshebel 8 derart zu beaufschlagen, dass dieser eine ebenfalls in der einzigen Figur angedeutete Uhrzeigersinnbewegung um seine Achse 9 vollführt. Da es sich bei dem Betätigungshebel 8 im Ausführungsbeispiel um einen Außenbetätigungshebel handelt, wird diese Uhrzeigersinnbewegung des Betätigungshebels 8 dadurch initiiert, dass auf den fraglichen Betätigungshebel 8 bzw. den Außenbetätigungshebel ein Türaußengriff 10 in entsprechendem Sinne arbeitet, wie dies in der einzigen Figur lediglich angedeutet ist.The rotary latch 1 is equipped with a rotary latch spring that is not explicitly shown. The rotary latch spring ensures that the rotary latch 1 pivots open about its axis 3 after lifting the pawl 2 in the counterclockwise direction indicated by an arrow in the single figure and releases a previously caught locking bolt. In order to open the locking mechanism 1, 2, it is necessary to act on the actuating lever 8 in such a way that it performs a clockwise movement about its axis 9, which is also indicated in the single figure. Since the actuating lever 8 in the exemplary embodiment is an external actuating lever, this clockwise movement of the actuating lever 8 is initiated by an external door handle 10 working on the actuating lever 8 in question or the external actuating lever in a corresponding manner, as is only indicated in the single figure .

Die Uhrzeigersinnbewegung des Betätigungshebels 8 bzw. des Außenbetätigungshebels hat zur Folge, dass eine Abkantung 11 am Betätigungshebel 8 in Eingriff mit dem Auslösehebel 6 kommt. Der Auslösehebel 6 wird als Folge hiervon im angedeuteten Gegenuhrzeigersinn um seine Achse 4 verschwenkt. Da der Auslösehebel 6 mit seinem Vorsprung 7 auf die Sperrklinke 2 arbeiten kann bzw. mit dieser wechselwirkt, wird auch die gleichachsig zum Auslösehebel 6 um die gemeinsame Achse 4 gelagerte Sperrklinke 2 im Gegenuhrzeigersinn verschwenkt.The clockwise movement of the actuating lever 8 or the external actuating lever has the result that a chamfer 11 on the actuating lever 8 comes into engagement with the release lever 6 . As a result, the release lever 6 is pivoted about its axis 4 in the counterclockwise direction indicated. Since the release lever 6 can work with its projection 7 on the pawl 2 or interacts with it, the pawl 2, which is mounted coaxially with the release lever 6 about the common axis 4, is also pivoted counterclockwise.

Dadurch kommt die Sperrklinke 2 von einer angedeuteten Hauptrast an der Drehfalle 1 frei. Die Drehfalle 1 öffnet daraufhin federunterstützt und bewegt sich wie beschrieben im Gegenuhrzeigersinn um ihre Achse 3 und gibt in vollständig geöffnetem Zustand einen zuvor gefangenen und nicht ausdrücklich dargestellten Schließbolzen frei. Da das Kraftfahrzeugtürschloss im Innern oder an einer Kraftfahrzeugtür oder Klappe angebracht ist, während der nicht dargestellte Schließbolzen meistens eine Anbringung an der Karosserie erfährt, kann eine zugehörige Kraftfahrzeugtür oder Klappe im Anschluss hieran geöffnet werden.As a result, the pawl 2 is released from an indicated main position on the catch 1 . The rotary latch 1 then opens with the aid of a spring and, as described, moves counterclockwise about its axis 3 and, in the fully opened state, releases a locking bolt that was previously caught and not expressly shown. Since the motor vehicle door lock is mounted inside or on a motor vehicle door or hatch, while the locking bolt, not shown, is usually mounted on the bodywork an associated motor vehicle door or flap can then be opened.

Anhand der einzigen Figur erkennt man, dass der Betätigungshebel 8 mit seiner Abkantung 11 zunächst den Auslösehebel 6 beaufschlagt und als Folge hiervon die Sperrklinke 2 von ihrem Eingriff mit der Drehfalle 1 abhebt. Die damit verbundene Schwenkbewegung des Betätigungshebels 8 im Uhrzeigersinn um die Achse 9 hat zur Folge, dass ein zusätzlich am Betätigungshebel 8 vorgesehener Vorsprung 12 nachfolgend mit einer Sperrklinkenfeder 13 wechselwirken kann.The only figure shows that the actuating lever 8 with its bevel 11 first acts on the release lever 6 and as a result the pawl 2 is lifted out of its engagement with the rotary latch 1 . The associated pivoting movement of the actuating lever 8 in a clockwise direction about the axis 9 has the result that a projection 12 additionally provided on the actuating lever 8 can subsequently interact with a ratchet spring 13 .

Die Sperrklinkenfeder 13 ist im Ausführungsbeispiel als Schenkelfeder ausgebildet. Tatsächlich setzt sich die Sperrklinkenfeder bzw. Schenkelfeder 13 aus einem Klinkenarm 13a als einem Schenkel und einem Befestigungsarm 13b als anderem Schenkel zusammen. Beide Schenkel 13a, 13b sind an einen gewundenen Federabschnitt 13c angeschlossen, welcher für die Festlegung der Sperrklinkenfeder 13 insgesamt am Schlosskasten 5 sorgt. Die beiden Schenkel 13a, 13b der Schenkelfeder bzw. der Klinkenarm 13a und der Befestigungsarm 13b schließen nach dem Ausführungsbeispiel insgesamt einen spitzen Winkel zwischen sich ein, was keinesfalls einschränkend gilt.The pawl spring 13 is designed as a torsion spring in the exemplary embodiment. In fact, the ratchet spring or leg spring 13 is composed of a latch arm 13a as one leg and a fastening arm 13b as the other leg. Both legs 13a, 13b are connected to a coiled spring section 13c, which ensures that the pawl spring 13 is fixed to the lock case 5 as a whole. According to the exemplary embodiment, the two legs 13a, 13b of the leg spring or the pawl arm 13a and the fastening arm 13b as a whole enclose an acute angle between them, which is in no way limiting.

Neben dem gewundenen Federabschnitt 13c sorgt typischerweise und ergänzend oder alternativ der Befestigungsarm 13b für die Festlegung der Schenkelfeder bzw. der Sperrklinkenfeder 13 am Schlosskasten 5. Demgegenüber liegt der Klinkenarm 13a an einem Außenumfang der Sperrklinke 2 an. Insgesamt sorgt die Sperrklinkenfeder 13 dafür, dass die Sperrklinke 2 in Schließrichtung beaufschlagt wird. Die Schließrichtung korrespondiert zu einer Uhrzeigersinnbewegung der Sperrklinke 2 um ihre Achse 4, und zwar derart, dass die Sperrklinke 2 entweder in die angedeutete Hauptrastausnehmung oder die zusätzliche Vorrastausnehmung der Drehfalle 1 einfällt und auch einfallen kann.In addition to the coiled spring section 13c, the fastening arm 13b typically and additionally or alternatively ensures that the torsion spring or the pawl spring 13 is fixed to the lock case 5. Overall, the pawl spring 13 ensures that the pawl 2 is acted upon in the closing direction. The closing direction corresponds to a clockwise movement of the pawl 2 about its axis 4, in such a way that the pawl 2 either falls into the indicated main latching recess or the additional preliminary latching recess of the rotary latch 1 and can also occur.

Wie bereits erläutert, sorgt die Öffnungsbewegung des Betätigungshebels 8 um die Achse 9 im Uhrzeigersinn dafür, dass zunächst die Abkantung 11 den Auslösehebel 6 beaufschlagt und als Folge hiervon die Sperrklinke 2 von ihrem Eingriff mit der Drehfalle 3 abgehoben wird. Im Anschluss daran kommt der zusätzlich am Betätigungshebel 8 vorgesehene und realisierte Vorsprung 12 in Eingriff mit dem Klinkenarm 13a der Schenkelfeder bzw. Sperrklinkenfeder 13. Eine fortgesetzte Bewegung des Betätigungshebels 8 im Uhrzeigersinn um die Achse 9 hat nun zur Folge, dass der Vorsprung 12 am Betätigungshebel 8 den Klinkenarm 13a der Schenkelfeder bzw. Sperrklinkenfeder 13 von seiner Anlage am Außenumfang der Sperrklinke 2 abhebt. Dadurch wird verhindert, dass die Sperrklinke 2 bei dem durch ihr Abheben von der Drehfalle 1 initiierten Öffnungsvorgang gegen die Drehfalle 1 zurückprellt.As already explained, the clockwise opening movement of the actuating lever 8 about the axis 9 ensures that the fold 11 first acts on the release lever 6 and as a result the pawl 2 is lifted from its engagement with the rotary latch 3 . Subsequently, the projection 12 additionally provided and realized on the actuating lever 8 comes into engagement with the pawl arm 13a of the torsion spring or pawl spring 13. A continued movement of the actuating lever 8 clockwise about the axis 9 now has the result that the projection 12 on the actuating lever 8 lifts the pawl arm 13a of the torsion spring or pawl spring 13 from its contact with the outer circumference of the pawl 2. This prevents the pawl 2 from bouncing back against the rotary latch 1 during the opening process initiated by its lifting off the rotary latch 1 .

Um dies im Detail zu erreichen, ist der Vorsprung 12 im Wesentlichen senkrecht gegenüber einer Betätigungshebelebene ausgerichtet. Die Betätigungshebelebene wird durch die Flächenausdehnung des Betätigungshebels 8 im Beispielfall definiert und fällt vorliegend größtenteils mit der Zeichenebene zusammen. Außerdem ist die Auslegung so getroffen, dass der Betätigungshebel 8 im Wesentlichen parallel zu einer Gesperreebene verschwenkbar ausgebildet ist. Die vom Gesperre 1, 2 aufgespannte Gesperreebene fällt ebenfalls mit der Zeichenebene zusammen bzw. ist parallel hierzu ausgerichtet und orientiert.In order to achieve this in detail, the projection 12 is aligned essentially perpendicular to an actuating lever plane. The level of the actuating lever is defined by the surface area of the actuating lever 8 in the example and in the present case largely coincides with the plane of the drawing. In addition, the design is such that the actuating lever 8 is designed to be pivotable essentially parallel to a locking plane. The ratchet level spanned by the ratchet 1, 2 also coincides with the plane of the drawing or is aligned and oriented parallel thereto.

Da der Betätigungshebel 8 die Sperrklinkenfeder 13 zumindest teilweise überdeckt, werden etwaige Fehlfunktionen vermieden und wird die Sperrklinkenfeder 13 gleichsam geschützt im Innern des Schlosskastens 5 angeordnet. Sobald der Betätigungshebel 8 den Öffnungsvorgang des Gesperres 1, 2 beendet hat und hierzu beispielsweise gegen einen nicht näher dargestellten Anschlag gefahren ist, kehrt der Betätigungshebel 8 in der Regel federunterstützt in seine in der einzigen Figur dargestellte Ausgangsstellung zurück.Since the actuating lever 8 at least partially covers the pawl spring 13 , any malfunctions are avoided and the pawl spring 13 is arranged in a protected manner inside the lock case 5 . As soon as the actuating lever 8 has completed the opening process of the locking mechanism 1, 2 and has moved against a stop, not shown in detail, for this purpose, the actuating lever 8 returns, usually with spring support, to its initial position shown in the single figure.

Hierzu korrespondiert, dass der Türaußengriff 10 von einem Benutzer losgelassen worden ist.This corresponds to the fact that the outside door handle 10 has been released by a user.

Das hat zur Folge, dass auch der Vorsprung 12 die Sperrklinkenfeder 13 nicht mehr beaufschlagt und folglich der Klinkenarm 13a der Sperrklinkenfeder 13 in Anlage an die Sperrklinke 2 zurückkehren kann. Jetzt ist die Drehfalle 1 in ihre geöffnete Position aufgeschwenkt und hat den zuvor gefangenen Schließbolzen freigegeben. Die Sperrklinke 2 liegt am Außenumfang der Drehfalle 1 an, und zwar in einem Bereich jenseits der beiden angedeuteten Ausnehmungen (Hauptrastausnehmung und Vorrastausnehmung). Ausgehend von dieser Position kann das Gesperre 1, 2 durch den in die Drehfalle 1 einfahrenden Schließbolzen erneut in die geschlossene und in der Figur dargestellte Funktionsstellung überführt werden.The consequence of this is that the projection 12 also no longer acts on the pawl spring 13 and consequently the pawl arm 13a of the pawl spring 13 can return to rest against the pawl 2 . Now the rotary latch 1 is pivoted into its open position and has released the previously caught locking bolt. The pawl 2 rests against the outer circumference of the rotary latch 1, specifically in an area beyond the two indicated recesses (main locking recess and pre-locking recess). Starting from this position, the locking mechanism 1, 2 can be transferred again into the closed functional position shown in the figure by the locking bolt moving into the rotary latch 1.

Claims (8)

  1. Motor vehicle door latch, comprising a locking mechanism (1, 2) substantially consisting of a catch (1) and pawl (2), further comprising a pawl spring (13) for acting on the pawl (2) in the closing direction, and comprising an operation lever (8) for opening the locking mechanism (1, 2), the operation lever (8) additionally being designed to act on the pawl spring (13) and being equipped with a projection (12) which interacts with the pawl spring (13), characterized in that the projection (12) acts on the pawl spring (13) only when the pawl (2) is lifted from its engagement with the catch (1).
  2. Motor vehicle door latch according to claim 1, characterized in that the pawl spring (13) is designed as a leg spring.
  3. Motor vehicle door latch according to claim 2, characterized in that one leg of the leg spring is designed as a latch arm (13a) and the other leg of the leg spring is designed as a fastening arm (13b).
  4. Motor vehicle door latch according to any of claims 1 to 3, characterized in that the projection (12) is oriented substantially perpendicularly with respect to an operation lever plane.
  5. Motor vehicle door latch according to any of claims 1 to 4, characterized in that the operation lever (8) is designed as an outer operation lever/inner operation lever.
  6. Motor vehicle door latch according to any of claims 1 to 5, characterized in that the operation lever (8) acts on the locking mechanism (1, 2) with the interposition of a release lever (6).
  7. Motor vehicle door latch according to any of claims 1 to 6, characterized in that the operation lever (8) is designed to be pivotable substantially in parallel with a locking mechanism plane.
  8. Motor vehicle door latch according to any of claims 1 to 7, characterized in that the operation lever (8) at least partially covers the pawl spring (13).
EP18773336.5A 2017-09-06 2018-09-06 Vehicle door lock Active EP3679208B1 (en)

Applications Claiming Priority (2)

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DE102017120453.9A DE102017120453A1 (en) 2017-09-06 2017-09-06 Motor vehicle door lock
PCT/DE2018/100759 WO2019048006A1 (en) 2017-09-06 2018-09-06 Motor vehicle door lock

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EP3679208A1 EP3679208A1 (en) 2020-07-15
EP3679208B1 true EP3679208B1 (en) 2022-03-16

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EP18773336.5A Active EP3679208B1 (en) 2017-09-06 2018-09-06 Vehicle door lock

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US (1) US11619075B2 (en)
EP (1) EP3679208B1 (en)
CN (1) CN111065789B (en)
DE (1) DE102017120453A1 (en)
WO (1) WO2019048006A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102018125208A1 (en) * 2018-10-11 2020-04-16 Brose Schließsysteme GmbH & Co. Kommanditgesellschaft Procedure for operating an opening mechanism

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DE202007013330U1 (en) * 2007-09-21 2009-02-12 BROSE SCHLIEßSYSTEME GMBH & CO. KG Motor vehicle lock
DE102008039240A1 (en) 2008-08-22 2010-02-25 Kiekert Ag Closing device for locking and unlocking of e.g. movable door, in motor vehicle, has triggering lever moved to cooperate with driving dog of detent, and detent spring forming stop between dog and triggering lever during cooperation of lever
DE102010003483B4 (en) * 2009-06-12 2019-08-01 Kiekert Ag Lock with positive guide for pawl
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DE102018126163A1 (en) * 2018-10-22 2020-04-23 Kiekert Aktiengesellschaft MOTOR VEHICLE LOCK

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CN111065789A (en) 2020-04-24
US11619075B2 (en) 2023-04-04
DE102017120453A1 (en) 2019-03-07
US20210164268A1 (en) 2021-06-03
CN111065789B (en) 2022-03-22
WO2019048006A1 (en) 2019-03-14
EP3679208A1 (en) 2020-07-15

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