EP3870785B1 - Motor vehicle lock, in particular motor vehicle door lock - Google Patents

Motor vehicle lock, in particular motor vehicle door lock Download PDF

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Publication number
EP3870785B1
EP3870785B1 EP19797551.9A EP19797551A EP3870785B1 EP 3870785 B1 EP3870785 B1 EP 3870785B1 EP 19797551 A EP19797551 A EP 19797551A EP 3870785 B1 EP3870785 B1 EP 3870785B1
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EP
European Patent Office
Prior art keywords
pawl
comfort
motor vehicle
locking mechanism
contour
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EP19797551.9A
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German (de)
French (fr)
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EP3870785A1 (en
Inventor
Ömer INAN
Holger Schiffer
Michael Scholz
Peter Szegeny
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Kiekert AG
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Kiekert AG
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Publication of EP3870785A1 publication Critical patent/EP3870785A1/en
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    • 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

Definitions

  • the invention relates to a motor vehicle lock, in particular a motor vehicle door lock, with a locking mechanism with a rotary latch, comfort pawl and pawl, the pawl locking the comfort pawl that has fallen into the rotary latch at least in the closed position of the locking mechanism.
  • a locking mechanism with a rotary latch, comfort pawl and pawl are also known under the name double ratchet ratchet.
  • the motor vehicle locks described in the introduction can generally be any type of locks on or in the motor vehicle. These include, for example, seat back locks, flap locks, etc..
  • Motor vehicle door locks are particularly preferred, which not only include motor vehicle side door locks, but also include motor vehicle front hood and motor vehicle tailgate locks as well as motor vehicle tank flap locks or the like and are expressly intended to be covered.
  • the double ratchet mechanism with rotary latch, comfort ratchet and pawl realized in this context are characterized by low noise development and a fast reaction time. For this reason, motor vehicle locks with such a double ratchet mechanism are increasingly used and realized in practice, such as the prior art according to EP 2 291 568 B1 documented.
  • a first pawl in the form of a comfort pawl and a further second pawl in the form of the pawl are implemented here, with the aid of which the pivoting of the first pawl or comfort pawl is blocked.
  • EP 2 291 568 B1 is additionally realized a locking device with a motor-driven actuator for at least one release lever.
  • the release lever is moved in such a way that during its movement it interacts with both pawls one after the other. This has basically worked.
  • the procedure is usually such that the locking pawl is lifted by motor or manually from the comfort pawl that has fallen into the rotary latch in order to open the locking mechanism or double pawl locking mechanism.
  • the comfort pawl can be regularly pivoted away and therefore the rotary latch is released.
  • the rotary latch swings open with the help of a spring and releases a previously caught locking bolt. As a result, an associated motor vehicle door can be opened.
  • the invention is based on the technical problem of further developing such a motor vehicle lock and in particular a motor vehicle door lock in such a way that, in an alternative way, even with increased self-locking forces of the comfort latch, for example as a result of many years of use and/or due to unfavorable environmental conditions, the locking mechanism can still be opened properly .
  • the invention proposes in a generic motor vehicle lock and in particular a motor vehicle door lock that the pawl to open the comfort pawl acts on the actuating arm with a large transmission ratio, namely at its radially outer end, the pawl in the open state of the locking mechanism in the intermediate space immersed and applied to the actuating arm with a small translation, namely at its radially inner end.
  • the pawl thus assumes at least a dual function.
  • the pawl ensures, as usual and in general, that the locking mechanism is in the closed position in the rotary latch collapsed comfort pawl is secured or latched. As a result, the comfort pawl cannot swing away from the rotary latch and holds it in the closed position of the locking mechanism.
  • a second functionality of the pawl is now added.
  • the pawl actively ensures that the comfort pawl is also pushed in the opening direction.
  • the comfort pawl pivots away from the comfort pawl to open the locking mechanism, gives up its securing position and the comfort pawl is then pivoted away from the catch
  • the comfort pawl is actively actuated by the pawl during the opening process. Because the pawl acts on the comfort pawl at least during the opening process of the locking mechanism in the opening direction.
  • This functionality is provided in addition and according to the invention to the retained and known functionality of the pawl, namely to hold and latch or secure the comfort pawl in the closed position of the locking mechanism in its position in which it has fallen into the rotary latch.
  • the opening process can still be carried out correctly even with increased self-locking forces of the comfort latch as a result of many years of use of the motor vehicle lock and/or caused by unfavorable environmental conditions.
  • An additional spring acting on the comfort pawl is therefore generally unnecessary, but can be provided at least as an option if required.
  • the comfort pawl has a latching contour and an opening contour.
  • the pawl interacts with the latching contour when the locking mechanism is in the closed position and with the opening contour when the locking mechanism is opened.
  • the locking pawl acts on the actuating arm with a large translation to open the comfort pawl.
  • the high translation is achieved by the fact that the pawl acts on the actuating arm as part of the fork-shaped opening contour at its radially outer end.
  • the pawl works, forming a high torque on the comfort pawl to open it.
  • any large self-locking forces of the comfort pawl can also be overcome during the opening process described.
  • the pawl enters the intermediate space between the actuating arm and the stop arm in this open state of the locking mechanism.
  • the pawl acts on the actuating arm in this open state with only a small translation, specifically at its radially inner end.
  • the pawl acts on the actuating arm as part of the opening contour, but in contrast to the opening process, not at its radially outer end but at its radially inner end. This results in a small translation, because in this case the pawl works on a lever arm of shorter length on the comfort pawl.
  • the pawl When the locking mechanism is open, the pawl can act on the comfort pawl with a smaller transmission ratio compared to the opening process, because in the open state any self-locking forces of the comfort pawl are overcome by static friction and the comfort pawl has switched to sliding friction during the opening process. As a result, high actuation forces are no longer required on the comfort pawl.
  • the invention takes this into account in that, in the open state, the pawl acts on the actuating arm with a small transmission ratio, namely at its radially inner end.
  • this design ensures that the comfort pawl is held in its position by the pawl when the locking mechanism is in the open state. Consequently, this is generally possible without an additional spring, which is unnecessary compared to the prior art. As a result, the design effort is reduced and, of course, there are also lower costs when realizing such a motor vehicle lock. This is where the main advantages can be seen.
  • the design is further and advantageously made such that the latching contour and the opening contour of the comfort pawl are designed differently from one another in terms of location and function. This ensures that the pawl can properly secure the comfort pawl in the closed position of the locking mechanism. This is because the pawl interacts with the latching contour. If, on the other hand, the pawl is to actively act on the comfort pawl in the opening direction during the opening process of the locking mechanism, this interaction takes place with the opening contour, which is designed to be spatially and functionally separate from the latching contour. As a result, the functionalities can be perfectly separated from one another, especially since they do not overlap in terms of time, or at most slightly.
  • the latching contour is arranged radially outwards compared to an axis of rotation of the comfort pawl and the opening contour is arranged radially inwards compared to said axis of rotation.
  • the two contours are arranged on a common lever arm of the two-armed comfort pawl.
  • the comfort pawl generally has two lever arms.
  • a lever arm may be designed as a contoured arm because it has the two contours, ie both the locking contour and the opening contour.
  • the other lever arm is a stop arm which limits pivoting movements of the comfort latch.
  • the latching contour is specifically and advantageously designed as a contact surface for a mating surface of the pawl that rests against it when the locking mechanism is in the closed position.
  • the counter surface is usually located on the front of an actuating pin as part of the pawl. That means in In the closed position of the locking mechanism, the counter-surface on the front of the pawl interacts with the contact surface on the comfort pawl on the other hand. In order to open the locking mechanism and consequently the comfort pawl, any self-locking forces, in particular between the contact surface and the counter surface, must be overcome.
  • the opening contour is advantageously designed in the form of a fork with an actuating arm and a stop arm spaced radially therefrom, defining an intermediate space.
  • the opening contour has a fork shape that is set by the two arms, the actuating arm and the stop arm. Because the actuator arm and stop arm are radially spaced from each other, the gap between the two arms is observed and defined.
  • a motor vehicle lock is shown, which is designed, not restrictively, as a motor vehicle door lock.
  • the motor vehicle lock or motor vehicle door lock is limited to the elements and components essential to the invention.
  • the motor vehicle lock has a locking mechanism with a rotary latch 1, a comfort pawl 2 and a pawl 3, which is designed as a double pawl locking mechanism.
  • respective axes of rotation 4, 5, 6 are provided, with the help of which the catch 1, the comfort pawl 2 and the pawl 3 in each case only in the figure 1 indicated lock case 7 are stored.
  • the basic structure also includes two stops or stop dampers 8, 9, on the one hand a stop 8 for the comfort pawl 2, which can be rotated about the axis of rotation 5, and on the other hand another stop 9 for the pawl 3, which can be pivoted about its associated axis of rotation 6.
  • the rotary latch 1 in turn ensures that a locking bolt 10 in the closed position of the double-pawl locking mechanism still 1 has been caught.
  • the basic structure includes a release lever or, in general, an actuating element 11, with the help of which the pawl 6 can be acted upon in the opening direction, ie one in the 1 only indicated clockwise movement about its axis of rotation 6 performs. This removes the pawl 6 from its stop 9, on which it is in the closed position of the locking mechanism after 1 applied.
  • the actuating element 11 or the release lever can generally be acted upon manually and/or by a motor, but this is not shown in detail.
  • the Figure 3A shows an opening process of the double pawl locking mechanism starting from the closed position in the 1 . It can be seen that for this purpose the pawl 3 has been acted upon with the aid of the actuating element 11 and has carried out the clockwise movement already described above about its axis of rotation 6 and has moved away from the associated stop 9 .
  • the comfort pawl 2 is initially designed with two arms overall. At this point there is on the one hand a stop arm 2a resting against the stop 8 in the closed position of the comfort pawl 2 and on the other hand a contour arm 2b realized.
  • the stop 8 may be composed of two elements, but this is irrelevant for the following considerations.
  • the stop arm 2a and the contoured arm 2b of the comfort pawl 2 enclose an obtuse angle, with the axis of rotation 5 of the comfort pawl 2 being arranged in the area or near the apex of this obtuse angle.
  • the contour arm 2b has two contours 12; 13a, 13b, 13c, on.
  • the two contours 12; 13a, 13b, 13c are designed on the one hand as a latching contour 12 and on the other hand as an opening contour 13a, 13b, 13c.
  • the latching contour 12 and the opening contour 13a, 13b, 13c of the comfort pawl 2 are designed to be different from one another in terms of location and function.
  • the latching contour 12 is located radially outwards compared to the axis of rotation 5 of the comfort latch 2, while the opening contour 13a, 13b, 13c is arranged radially inwards compared to the axis of rotation 5 in question, as can be seen in a comparative consideration of the Figures 3A and 3B recognizes.
  • the latching contour 12 is designed as a contact surface 12 for a mating surface 14 of the pawl 3 that rests against it in the closed position of the locking mechanism, cf. 1 .
  • the two surfaces i.e. the contact surface 12 on the comfort pawl 2 and the counter surface 14 on the pawl 3
  • the two surfaces 12, 14 in the closed position correspond to the 1 rest against each other and ensure that the pawl 3 latches the comfort pawl 2 in its collapsed state into the rotary latch 1 .
  • the mating surface 14 on the pawl 3 is located on the front side of an actuating pin 3a of the pawl 3.
  • the actuating pin 3a in question of the pawl 3 can dip into an intermediate space 13c, which occurs on the contoured arm 2b of the comfort pawl 2 in that the opening contour 13a, 13b, 13c is fork-shaped overall.
  • the opening contour 13a, 13b, 13c has an actuating arm 13a and a stop arm 13b spaced radially therefrom. Due to the radial spacing of both arms 13a, 13b is between between the two arms 13a, 13b the space 13c already mentioned. This shows in particular the one showing the open state Figure 3B .
  • the pawl 3 ensures that the comfort pawl 2 that has fallen into the rotary latch 1 is locked in the closed position of the locking mechanism.
  • This is implemented in detail in such a way that the mating surface 14 on the front of the pawl 3 interacts with the latching contour or contact surface 12 of the comfort pawl 2 .
  • the contour arm 2b of the comfort pawl 2 and therefore the comfort pawl 2 interacts overall with a main catch 15 of the rotary latch 1, as in addition to 1 the 2D makes clear.
  • the pawl 3 rests against its stop 9 . Since the rotary latch 1 moves with its main catch 15 against the comfort pawl 2 or its contoured arm 2b with spring support, the rotary latch 1 cannot be opened and the locking bolt 10 is caught (cf. 1 and 2D ).
  • the pawl 3 takes on an additional function, in addition to the security function of the comfort pawl 2, as previously in the 1 is shown. This additional function is based on the Figure 3A clear and described below. Because when the locking mechanism is opened, the pawl 3 also ensures that the comfort pawl 2 is acted upon in the opening direction during this opening process. That makes them Figure 3A clear.
  • the opening process shown here corresponds first of all to the fact that the pawl 3 starting from the closed position of the locking mechanism in the 1 using the actuator 11 in the 1 shown clockwise is applied to a rotation about its axis of rotation 6 and the associated stop 9 leaves.
  • the pawl 3 or its pin 3a moves against the actuating arm 13a as part of the opening contour 13a, 13b, 13c on the comfort pawl 2.
  • lever arm H 1 which is set between a contact surface of the pawl 3 and the radially outer end of the actuating arm 13 a at a distance from the axis of rotation 5 of the comfort pawl 2 , is decisive at this point. Said lever arm H 1 ensures that the comfort pawl 2 is applied with a large torque during the opening process to overcome any self-locking forces or static friction on the part of the pawl 3 and can also be applied.
  • the pawl 3 works according to the opening process Figure 3A on the long or large lever arm H 1 of the comfort pawl 2, which is set in that the pawl 3 acts on the comfort pawl 2 at the radially outer end of the actuating arm 13a.
  • relatively large self-locking forces or static friction of the comfort pawl 2 can also be overcome during this opening process.
  • the pawl 3 acts on the comfort pawl 2 in the opening direction when the locking mechanism is opened. Since the pawl 3 in the opening process in the 1 clockwise shown is acted upon about its axis of rotation 6, this clockwise rotation of the pawl 3 during the opening process in the Figure 3A to the fact that the comfort pawl 2 pivots about its axis of rotation 5 counterclockwise. Since during this process the locking pawl 3 acts on the actuating arm 13a with a large translation to open the comfort pawl 2, the comfort pawl 2 can be swung open directly from its engagement with the rotary latch 1, in principle without additional spring force.
  • the contour arm 2b of the comfort latch 2 also leaves the main catch 15 of the rotary latch 1.
  • the rotary latch 1 is about its axis of rotation 4 in the Figure 3A indicated counterclockwise pivoted and releases the locking bolt 10, as in the transition to the Figure 3B recognizes and understands the open state shown.
  • the pawl 3 not only acts on the actuating arm 13a of the comfort pawl 2 or the opening contour 13a, 13b, 13c at its radially outer end.
  • this opening process also means that the pawl 3 with its actuating pin 3a and the mating surface 14 arranged on the front side of the actuating pin 3a increasingly dips into the intermediate space 13c between the actuating arm 13a and the stop arm 13b of the opening contour 13a, 13b, 13c.
  • the pawl 3 is completely immersed with its actuating pin 3a in the gap 13c in question, as the Figure 3B removes the open state of the motor vehicle lock following the in the Figure 3A reproduced opening process shows.
  • the pawl 3 acts on the actuating arm 13a of the comfort pawl 2 in this open and in the Figure 3B State shown only with a small translation, namely at its radially inner end. This corresponds to a in the Figure 3B illustrated lever arm H 2 , which has a shorter length than the lever arm H 1 during the opening process in the Figure 3A has.

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  • Lock And Its Accessories (AREA)

Description

Die Erfindung betrifft ein Kraftfahrzeugschloss, insbesondere Kraftfahrzeugtürschloss, mit einem Gesperre mit Drehfalle, Komfortklinke und Sperrklinke, wobei die Sperrklinke zumindest in Schließposition des Gesperres die in die Drehfalle eingefallene Komfortklinke verrastet. Solche Gesperre mit Drehfalle, Komfortklinke und Sperrklinke sind auch unter der Bezeichnung Doppelklinken-Gesperre bekannt.The invention relates to a motor vehicle lock, in particular a motor vehicle door lock, with a locking mechanism with a rotary latch, comfort pawl and pawl, the pawl locking the comfort pawl that has fallen into the rotary latch at least in the closed position of the locking mechanism. Such a locking mechanism with a rotary latch, comfort pawl and pawl are also known under the name double ratchet ratchet.

Bei den einleitend beschriebenen Kraftfahrzeugschlössern kann es sich generell um jedwede Art von Schlössern an oder im Kraftfahrzeug handeln. Hierzu gehören beispielsweise Sitzlehnenschlösser, Klappenschlösser etc.. Besonders bevorzugt geht es um Kraftfahrzeugtürschlösser, die nicht nur Kraftfahrzeugseitentürschlösser umfassen, sondern zu denen auch Kraftfahrzeugfronthauben- und Kraftfahrzeugheckklappenschlösser ebenso wie Kraftfahrzeugtankklappenschlösser oder dergleichen gehören und ausdrücklich mit abgedeckt werden sollen.The motor vehicle locks described in the introduction can generally be any type of locks on or in the motor vehicle. These include, for example, seat back locks, flap locks, etc.. Motor vehicle door locks are particularly preferred, which not only include motor vehicle side door locks, but also include motor vehicle front hood and motor vehicle tailgate locks as well as motor vehicle tank flap locks or the like and are expressly intended to be covered.

Die in diesem Zusammenhang realisierten Doppelklinkengesperre mit Drehfalle, Komfortklinke und Sperrklinke zeichnen sich durch eine geringe Geräuschentwicklung und eine schnelle Reaktionszeit aus. Aus diesem Grund werden in der Praxis zunehmend Kraftfahrzeugschlösser mit einem solchen Doppelklinkengesperre eingesetzt und realisiert, wie beispielsweise der Stand der Technik nach der EP 2 291 568 B1 dokumentiert. Hier ist eine erste Sperrklinke in Gestalt einer Komfortklinke sowie eine weitere zweite Sperrklinke in Gestalt der Sperrklinke realisiert, mit deren Hilfe das Verschwenken der ersten Sperrklinke bzw. Komfortklinke blockiert wird.The double ratchet mechanism with rotary latch, comfort ratchet and pawl realized in this context are characterized by low noise development and a fast reaction time. For this reason, motor vehicle locks with such a double ratchet mechanism are increasingly used and realized in practice, such as the prior art according to EP 2 291 568 B1 documented. A first pawl in the form of a comfort pawl and a further second pawl in the form of the pawl are implemented here, with the aid of which the pivoting of the first pawl or comfort pawl is blocked.

Bei der Lehre nach der EP 2 291 568 B1 ist zusätzlich noch eine Schließvorrichtung mit einem motorisch angetriebenen Stellantrieb für zumindest einen Auslösehebel realisiert. Der Auslösehebel wird dabei so bewegt, dass er während seiner Bewegung mit beiden Sperrklinken nacheinander zusammenwirkt. Das hat sich grundsätzlich bewährt.In the lesson after EP 2 291 568 B1 is additionally realized a locking device with a motor-driven actuator for at least one release lever. The release lever is moved in such a way that during its movement it interacts with both pawls one after the other. This has basically worked.

Bei diesem Stand der Technik wird meistens so vorgegangen, dass zum Öffnen des Gesperres bzw. Doppelklinken-Gesperres die Sperrklinke von der in die Drehfalle eingefallenen Komfortklinke motorisch oder manuell abgehoben wird. Als Folge hiervon kann die Komfortklinke regelmäßig weggeschwenkt werden und daher ist die Drehfalle freigegeben. Die Drehfalle schwenkt ihrerseits federunterstützt auf und gibt einen zuvor gefangenen Schließbolzen frei. Dadurch kann eine zugehörige Kraftfahrzeugtür geöffnet werden.In this state of the art, the procedure is usually such that the locking pawl is lifted by motor or manually from the comfort pawl that has fallen into the rotary latch in order to open the locking mechanism or double pawl locking mechanism. As a result of this, the comfort pawl can be regularly pivoted away and therefore the rotary latch is released. The rotary latch swings open with the help of a spring and releases a previously caught locking bolt. As a result, an associated motor vehicle door can be opened.

In der Praxis und bei beispielsweise langen Standzeiten eines Kraftfahrzeuges oder nach langjähriger Benutzung ist es jedoch möglich, dass die an der Komfortklinke angreifende Kraft nicht mehr ausreicht, um nach dem Abheben der Sperrklinke die Komfortklinke einwandfrei öffnen zu können. Das lässt sich beispielsweise darauf zurückführen, dass es nach langer Benutzung oder aufgrund ungünstiger Umweltbedingungen durch Ablagerungen wie Staub oder Schmutz zu einer erhöhten Selbsthemmung der Komfortklinke kommt oder kommen kann. Diese erhöhte Selbsthemmung kann dabei so groß sein, dass sie von der an der Komfortklinke angreifenden Kraft nicht mehr überwunden werden kann. Hier schafft dabei die gattungsgemäße US 8 235 428 B2 eine allgemeine Abhilfe mittels einer Wechselwirkung zwischen der Sperrklinke und einer Öffnungskontur an der Komfortklinke.In practice, for example when a motor vehicle is parked for a long time or after many years of use, it is possible that the force acting on the comfort pawl is no longer sufficient to be able to open the comfort pawl properly after the pawl has been lifted. This can be attributed, for example, to the fact that after a long period of use or due to unfavorable environmental conditions due to deposits such as dust or dirt, there is or can be an increased self-locking of the comfort pawl. This increased self-locking can be so great that it can no longer be overcome by the force acting on the comfort pawl. Here it creates the generic U.S. 8,235,428 B2 a general remedy by means of an interaction between the pawl and an opening contour on the comfort pawl.

Der Erfindung liegt das technische Problem zugrunde, ein derartiges Kraftfahrzeugschloss und insbesondere Kraftfahrzeugtürschloss so weiter zu entwickeln, dass in einer alternativen Weise auch bei erhöhten Selbsthemmungskräften der Komfortklinke beispielsweise in Folge langjähriger Benutzung und/oder bedingt durch ungünstige Umweltbedingungen dennoch ein einwandfreies Öffnen des Gesperres möglich ist. Das soll besonders aufwandsarm und unter Rückgriff auf eine konstruktiv einfache Lösung realisiert werden.The invention is based on the technical problem of further developing such a motor vehicle lock and in particular a motor vehicle door lock in such a way that, in an alternative way, even with increased self-locking forces of the comfort latch, for example as a result of many years of use and/or due to unfavorable environmental conditions, the locking mechanism can still be opened properly . This should be implemented with particularly little effort and with recourse to a structurally simple solution.

Zur Lösung dieser technischen Problemstellung schlägt die Erfindung bei einem gattungsgemäßen Kraftfahrzeugschloss und insbesondere Kraftfahrzeugtürschloss vor, dass die Sperrklinke zum Öffnen der Komfortklinke den Betätigungsarm mit großer Übersetzung beaufschlagt, und zwar an seinem radial äußeren Ende, wobei die Sperrklinke im geöffneten Zustand des Gesperres in den Zwischenraum eintaucht und den Betätigungsarm mit kleiner Übersetzung beaufschlagt, und zwar an seinem radial inneren Ende.To solve this technical problem, the invention proposes in a generic motor vehicle lock and in particular a motor vehicle door lock that the pawl to open the comfort pawl acts on the actuating arm with a large transmission ratio, namely at its radially outer end, the pawl in the open state of the locking mechanism in the intermediate space immersed and applied to the actuating arm with a small translation, namely at its radially inner end.

Im Rahmen der Erfindung übernimmt die Sperrklinke also eine zumindest zweifache Funktion. Zunächst einmal sorgt die Sperrklinke wie üblich und allgemein dafür, dass die in Schließposition des Gesperres in die Drehfalle eingefallene Komfortklinke gesichert respektive verrastet wird. Dadurch kann die Komfortklinke nicht von der Drehfalle wegschwenken und hält diese in der Schließposition des Gesperres fest.In the context of the invention, the pawl thus assumes at least a dual function. First of all, the pawl ensures, as usual and in general, that the locking mechanism is in the closed position in the rotary latch collapsed comfort pawl is secured or latched. As a result, the comfort pawl cannot swing away from the rotary latch and holds it in the closed position of the locking mechanism.

Erfindungsgemäß kommt nun noch eine zweite Funktionalität der Sperrklinke hinzu. Denn die Sperrklinke sorgt bei einem Öffnungsvorgang des Gesperres aktiv dafür, dass die Komfortklinke zusätzlich in Richtung Öffnen beaufschlagt wird. Während beim Stand der Technik die Sperrklinke zum Öffnen des Gesperres von der Komfortklinke wegschwenkt, ihre Sicherungsstellung aufgibt und die Komfortklinke im Anschluss hieran von der Drehfalle weggeschwenkt wird, kommt es erfindungsgemäß zu einer aktiven Betätigung der Komfortklinke seitens der Sperrklinke beim Öffnungsvorgang. Denn die Sperrklinke beaufschlagt die Komfortklinke wenigstens bei dem Öffnungsvorgang des Gesperres in Richtung Öffnen. Diese Funktionalität ist zusätzlich und erfindungsgemäß zur beibehaltenen und bekannten Funktionalität der Sperrklinke vorgesehen, nämlich die Komfortklinke in Schließposition des Gesperres in ihrer in die Drehfalle eingefallenen Position zu halten und zu verrasten bzw. zu sichern.According to the invention, a second functionality of the pawl is now added. When the locking mechanism is opened, the pawl actively ensures that the comfort pawl is also pushed in the opening direction. While in the prior art the pawl pivots away from the comfort pawl to open the locking mechanism, gives up its securing position and the comfort pawl is then pivoted away from the catch, according to the invention the comfort pawl is actively actuated by the pawl during the opening process. Because the pawl acts on the comfort pawl at least during the opening process of the locking mechanism in the opening direction. This functionality is provided in addition and according to the invention to the retained and known functionality of the pawl, namely to hold and latch or secure the comfort pawl in the closed position of the locking mechanism in its position in which it has fallen into the rotary latch.

Als Folge hiervon wird zunächst einmal erreicht, dass auch bei erhöhten Selbsthemmungskräften der Komfortklinke in Folge langjähriger Benutzung des Kraftfahrzeugschlosses und/oder hervorgerufen durch ungünstige Umweltbedingungen dennoch der Öffnungsvorgang einwandfrei vollzogen werden kann. Denn die Sperrklinke beaufschlagt die Komfortklinke aktiv bei dem Öffnungsvorgang, indem sie die Komfortklinke in Richtung Öffnen beaufschlagt. Eine zusätzliche und die Komfortklinke beaufschlagende Feder ist folglich in der Regel entbehrlich, kann bei Bedarf jedoch zumindest als Option vorgesehen werden.As a result of this, it is first of all achieved that the opening process can still be carried out correctly even with increased self-locking forces of the comfort latch as a result of many years of use of the motor vehicle lock and/or caused by unfavorable environmental conditions. This is because the pawl acts on the comfort pawl actively during the opening process by urging the comfort pawl in the opening direction. An additional spring acting on the comfort pawl is therefore generally unnecessary, but can be provided at least as an option if required.

Das alles gelingt unter Berücksichtigung einer zugleich einfachen und aufwandsarmen Konstruktion. Denn vorzugsweise kann sogar auf die die Komfortklinke beaufschlagenden Feder verzichtet werden. Zugleich ist die Funktionalität verbessert und lässt sich auch auf langen Zeitskalen der gewünschte Öffnungsvorgang des Doppelklinken-Gesperres realisieren und umsetzen. Durch die aktive Betätigung der Komfortklinke in Richtung Öffnen bei einem Öffnungsvorgang seitens der Sperrklinke werden auch etwaige sich im Betrieb aufbauende erhöhte Selbsthemmungskräfte der Komfortklinke sicher überwunden. Hierin sind die wesentlichen Vorteile zu sehen.All of this is possible while taking into account a construction that is both simple and inexpensive. Because preferably even the spring acting on the comfort pawl can be dispensed with. At the same time, the functionality is improved and the desired opening process of the double pawl locking mechanism can also be realized and implemented over a long period of time. By actively actuating the comfort pawl in the opening direction during an opening process on the part of the pawl, any im Increased self-locking forces of the comfort pawl that build up during operation are safely overcome. This is where the main advantages can be seen.

Um die zuvor beschriebenen wenigstens zwei Funktionalitäten der Sperrklinke, einerseits zum Sichern der Komfortklinke in Schließposition des Gesperres und andererseits zum aktiven Öffnen der Komfortklinke bei einem Öffnungsvorgang des Gesperres im Detail umzusetzen, verfügt die Komfortklinke erfindungsgemäß über eine Rastkontur und eine Öffnungskontur. Die Sperrklinke wechselwirkt dabei in Schließposition des Gesperres mit der Rastkontur und zum Öffnen des Gesperres mit der Öffnungskontur.In order to implement in detail the at least two functionalities of the pawl described above, on the one hand for securing the comfort pawl in the closed position of the locking mechanism and on the other hand for actively opening the comfort pawl during an opening process of the locking mechanism, the comfort pawl has a latching contour and an opening contour. The pawl interacts with the latching contour when the locking mechanism is in the closed position and with the opening contour when the locking mechanism is opened.

Bei einem Öffnungsvorgang des Gesperres kommt es nun dazu, dass die Sperrklinke zum Öffnen der Komfortklinke den Betätigungsarm mit großer Übersetzung beaufschlagt. Die große Übersetzung stellt sich dadurch ein, dass die Sperrklinke den Betätigungsarm als Bestandteil der gabelförmigen Öffnungskontur an seinem radial äußeren Ende beaufschlagt. Dadurch arbeitet die Sperrklinke unter Ausbildung eines hohen Drehmomentes auf die Komfortklinke zu ihrem Öffnen. Als Folge hiervon lassen sich auch etwaige große Selbsthemmungskräfte der Komfortklinke bei dem beschriebenen Öffnungsvorgang überwinden.When the locking mechanism is opened, the locking pawl acts on the actuating arm with a large translation to open the comfort pawl. The high translation is achieved by the fact that the pawl acts on the actuating arm as part of the fork-shaped opening contour at its radially outer end. As a result, the pawl works, forming a high torque on the comfort pawl to open it. As a result of this, any large self-locking forces of the comfort pawl can also be overcome during the opening process described.

Befindet sich dagegen das Gesperre in geöffnetem Zustand, so taucht die Sperrklinke in diesem geöffneten Zustand des Gesperres in den Zwischenraum zwischen dem Betätigungsarm und dem Anschlagarm ein. Dadurch beaufschlagt die Sperrklinke den Betätigungsarm in diesem geöffneten Zustand mit lediglich kleiner Übersetzung, und zwar an seinem radial inneren Ende. Das heißt, in geöffnetem Zustand des Gesperres sorgt die Sperrklinke für eine Beaufschlagung des Betätigungsarmes als Bestandteil der Öffnungskontur, allerdings im Gegensatz zum Öffnungsvorgang nicht an seinem radial äußeren Ende, sondern an seinem radial inneren Ende. Dadurch stellt sich eine kleine Übersetzung ein, weil die Sperrklinke in diesem Fall auf einen Hebelarm kleinerer Länge an der Komfortklinke arbeitet.If, on the other hand, the locking mechanism is in the open state, the pawl enters the intermediate space between the actuating arm and the stop arm in this open state of the locking mechanism. As a result, the pawl acts on the actuating arm in this open state with only a small translation, specifically at its radially inner end. This means that when the locking mechanism is in the open state, the pawl acts on the actuating arm as part of the opening contour, but in contrast to the opening process, not at its radially outer end but at its radially inner end. This results in a small translation, because in this case the pawl works on a lever arm of shorter length on the comfort pawl.

In geöffnetem Zustand des Gesperres ist eine Beaufschlagung der Komfortklinke seitens der Sperrklinke mit kleinerer Übersetzung im Vergleich zum Öffnungsvorgang möglich, weil in geöffnetem Zustand etwaige Selbsthemmungskräfte der Komfortklinke durch Haftreibung überwunden sind und die Komfortklinke beim Öffnungsvorgang in die Gleitreibung übergegangen ist. Dadurch sind keine hohen Betätigungskräfte an der Komfortklinke mehr erforderlich. Dem trägt die Erfindung dadurch Rechnung, dass die Sperrklinke in geöffnetem Zustand den Betätigungsarm mit kleiner Übersetzung beaufschlagt, nämlich an seinem radial inneren Ende.When the locking mechanism is open, the pawl can act on the comfort pawl with a smaller transmission ratio compared to the opening process, because in the open state any self-locking forces of the comfort pawl are overcome by static friction and the comfort pawl has switched to sliding friction during the opening process. As a result, high actuation forces are no longer required on the comfort pawl. The invention takes this into account in that, in the open state, the pawl acts on the actuating arm with a small transmission ratio, namely at its radially inner end.

Durch diese Auslegung wird zugleich erreicht, dass die Komfortklinke seitens der Sperrklinke in geöffnetem Zustand des Gesperres in ihrer Position gehalten wird. Das gelingt folglich generell ohne zusätzliche Feder, die im Vergleich zum Stand der Technik entbehrlich ist. Dadurch ist der konstruktive Aufwand verringert und es stellen sich natürlich auch geringere Kosten bei der Realisierung eines derartigen Kraftfahrzeugschlosses ein. Hierin sind die wesentlichen Vorteile zu sehen.At the same time, this design ensures that the comfort pawl is held in its position by the pawl when the locking mechanism is in the open state. Consequently, this is generally possible without an additional spring, which is unnecessary compared to the prior art. As a result, the design effort is reduced and, of course, there are also lower costs when realizing such a motor vehicle lock. This is where the main advantages can be seen.

Die Auslegung ist weiter und vorteilhaft so getroffen, dass die Rastkontur und die Öffnungskontur der Komfortklinke örtlich und funktional voneinander verschieden ausgebildet sind. Dadurch ist gewährleistet, dass die Sperrklinke in Schließposition des Gesperres einwandfrei die Komfortklinke sichern kann. Denn hierbei kommt es zur Wechselwirkung der Sperrklinke mit der Rastkontur. Soll demgegenüber die Sperrklinke die Komfortklinke beim Öffnungsvorgang des Gesperres in Richtung Öffnen aktiv beaufschlagen, so erfolgt diese Wechselwirkung mit der örtlich und funktional getrennt von der Rastkontur ausgelegten Öffnungskontur. Dadurch lassen sich die Funktionalitäten einwandfrei voneinander trennen, zumal diese auch zeitlich nicht oder allenfalls geringfügig überlappen.The design is further and advantageously made such that the latching contour and the opening contour of the comfort pawl are designed differently from one another in terms of location and function. This ensures that the pawl can properly secure the comfort pawl in the closed position of the locking mechanism. This is because the pawl interacts with the latching contour. If, on the other hand, the pawl is to actively act on the comfort pawl in the opening direction during the opening process of the locking mechanism, this interaction takes place with the opening contour, which is designed to be spatially and functionally separate from the latching contour. As a result, the functionalities can be perfectly separated from one another, especially since they do not overlap in terms of time, or at most slightly.

Im Detail sind zu diesem Zweck die Rastkontur radial auswärts im Vergleich zu einer Drehachse der Komfortklinke und die Öffnungskontur radial einwärts im Vergleich zu der besagten Drehachse angeordnet. Außerdem hat es sich bewährt, wenn die beiden Konturen an einem gemeinsamen Hebelarm der zweiarmigen Komfortklinke angeordnet sind. Das heißt, die Komfortklinke verfügt im Allgemeinen über zwei Hebelarme. Ein Hebelarm mag dabei als Konturenarm ausgebildet sein, weil er die beiden Konturen, das heißt sowohl die Rastkontur als auch die Öffnungskontur, aufweist. Bei dem anderen Hebelarm handelt es sich demgegenüber um einen Anschlagarm, welcher Schwenkbewegungen der Komfortklinke begrenzt.In detail, for this purpose, the latching contour is arranged radially outwards compared to an axis of rotation of the comfort pawl and the opening contour is arranged radially inwards compared to said axis of rotation. In addition, it has proven itself if the two contours are arranged on a common lever arm of the two-armed comfort pawl. This means that the comfort pawl generally has two lever arms. A lever arm may be designed as a contoured arm because it has the two contours, ie both the locking contour and the opening contour. In contrast, the other lever arm is a stop arm which limits pivoting movements of the comfort latch.

Die Rastkontur ist im Einzelnen und vorteilhaft als Anlagefläche für eine in Schließposition des Gesperres hieran anliegende Gegenfläche der Sperrklinke ausgebildet. Die Gegenfläche befindet sich zu diesem Zweck meistens frontseitig eines Betätigungszapfens als Bestandteil der Sperrklinke. Das heißt, in Schließposition des Gesperres kommt es zur Wechselwirkung der Gegenfläche frontseitig der Sperrklinke einerseits mit der Anlagefläche an der Komfortklinke andererseits. Zum Öffnen des Gesperres und folglich der Komfortklinke müssen etwaige Selbsthemmungskräfte insbesondere zwischen der Anlagefläche und der Gegenfläche überwunden werden.The latching contour is specifically and advantageously designed as a contact surface for a mating surface of the pawl that rests against it when the locking mechanism is in the closed position. For this purpose, the counter surface is usually located on the front of an actuating pin as part of the pawl. That means in In the closed position of the locking mechanism, the counter-surface on the front of the pawl interacts with the contact surface on the comfort pawl on the other hand. In order to open the locking mechanism and consequently the comfort pawl, any self-locking forces, in particular between the contact surface and the counter surface, must be overcome.

Von besonderer Bedeutung für die Erfindung ist der Umstand, dass die Öffnungskontur vorteilhaft gabelförmig mit einem Betätigungsarm und einem radial hiervon unter Definition eines Zwischenraumes beabstandeten Anschlagarm ausgebildet ist. Das heißt, die Öffnungskontur verfügt über eine Gabelform, die sich durch die beiden Arme, den Betätigungsarm und den Anschlagarm einstellt. Da der Betätigungsarm und der Anschlagarm radial zueinander beabstandet sind, wird zwischen beiden Armen der Zwischenraum beobachtet und definiert.Of particular importance for the invention is the fact that the opening contour is advantageously designed in the form of a fork with an actuating arm and a stop arm spaced radially therefrom, defining an intermediate space. This means that the opening contour has a fork shape that is set by the two arms, the actuating arm and the stop arm. Because the actuator arm and stop arm are radially spaced from each other, the gap between the two arms is observed and defined.

Im Folgenden wird die Erfindung anhand von Zeichnungen, die ein bevorzugtes Ausführungsbeispiel darstellen, näher erläutert. Hierbei zeigt:

Fig. 1
das erfindungsgemäße Kraftfahrzeugschloss bzw. Kraftfahrzeugtürschloss mit in Schließposition befindlichem Gesperre in einer Übersicht,
Fig. 2A bis 2D
verschiedene Funktionsstellungen des Kraftfahrzeugschlosses nach Fig. 1 sowie
Fig. 3A
das Kraftfahrzeugschloss nach der Fig. 1 bei einem Öffnungsvorgang des Gesperres und
Fig. 3B
das Kraftfahrzeugschloss nach der Fig. 3A in geöffnetem Zustand.
The invention is explained in more detail below with reference to drawings that represent a preferred exemplary embodiment. This shows:
1
the motor vehicle lock or motor vehicle door lock according to the invention with the locking mechanism in the closed position in an overview,
Figures 2A to 2D
different functional positions of the motor vehicle lock 1 such as
Figure 3A
the motor vehicle lock after the 1 during an opening process of the locking mechanism and
Figure 3B
the motor vehicle lock after the Figure 3A in open condition.

In den Figuren ist ein Kraftfahrzeugschloss dargestellt, welches nicht einschränkend als Kraftfahrzeugtürschloss ausgebildet ist. Das Kraftfahrzeugschloss bzw. Kraftfahrzeugtürschloss ist auf die für die Erfindung wesentlichen Elemente und Bauteile beschränkt. Das Kraftfahrzeugschloss weist ein Gesperre mit einer Drehfalle 1, einer Komfortklinke 2 und einer Sperrklinke 3, das als Doppelklinken-Gesperre ausgeführt ist. Außerdem sind jeweilige Drehachsen 4, 5, 6 vorgesehen, mit deren Hilfe die Drehfalle 1, die Komfortklinke 2 und die Sperrklinke 3 jeweils in einem lediglich in der Figur 1 angedeuteten Schlosskasten 7 gelagert sind.In the figures, a motor vehicle lock is shown, which is designed, not restrictively, as a motor vehicle door lock. The motor vehicle lock or motor vehicle door lock is limited to the elements and components essential to the invention. The motor vehicle lock has a locking mechanism with a rotary latch 1, a comfort pawl 2 and a pawl 3, which is designed as a double pawl locking mechanism. In addition, respective axes of rotation 4, 5, 6 are provided, with the help of which the catch 1, the comfort pawl 2 and the pawl 3 in each case only in the figure 1 indicated lock case 7 are stored.

Zum grundsätzlichen Aufbau gehören noch zwei Anschläge bzw. Anschlagdämpfer 8, 9, und zwar einerseits ein Anschlag 8 für die um die Drehachse 5 drehbare Komfortklinke 2 und andererseits ein weiterer Anschlag 9 für die Sperrklinke 3, die sich um ihre zugehörige Drehachse 6 verschwenken lässt. Die Drehfalle 1 sorgt ihrerseits dafür, dass ein Schließbolzen 10 in der Schließposition des Doppelklinken-Gesperres noch der Fig. 1 gefangen worden ist. Schließlich gehört zum grundsätzlichen Aufbau noch ein Auslösehebel oder allgemein ein Stellelement 11, mit dessen Hilfe die Sperrklinke 6 in Richtung Öffnen beaufschlagt werden kann, also eine in der Fig. 1 lediglich angedeutete Uhrzeigersinnbewegung um ihre Drehachse 6 vollführt. Dadurch entfernt sich die Sperrklinke 6 von ihrem Anschlag 9, an welchem sie in der Schließposition des Gesperres nach der Fig. 1 anliegt. Das Stellelement 11 bzw. der Auslösehebel kann generell manuell und/oder motorisch beaufschlagt werden, was im Detail jedoch nicht dargestellt ist.The basic structure also includes two stops or stop dampers 8, 9, on the one hand a stop 8 for the comfort pawl 2, which can be rotated about the axis of rotation 5, and on the other hand another stop 9 for the pawl 3, which can be pivoted about its associated axis of rotation 6. The rotary latch 1 in turn ensures that a locking bolt 10 in the closed position of the double-pawl locking mechanism still 1 has been caught. Finally, the basic structure includes a release lever or, in general, an actuating element 11, with the help of which the pawl 6 can be acted upon in the opening direction, ie one in the 1 only indicated clockwise movement about its axis of rotation 6 performs. This removes the pawl 6 from its stop 9, on which it is in the closed position of the locking mechanism after 1 applied. The actuating element 11 or the release lever can generally be acted upon manually and/or by a motor, but this is not shown in detail.

Die Detailauslegung der einzelnen Elemente wird nun anhand der Figuren 3A und 3B erläutert. Die Fig. 3A zeigt dabei einen Öffnungsvorgang des Doppelklinken-Gesperres ausgehend von der Schließposition in der Fig. 1. Man erkennt, dass zu diesem Zweck die Sperrklinke 3 mithilfe des Stellelementes 11 beaufschlagt worden ist und die zuvor bereits beschriebe Uhrzeigersinnbewegung um ihre Drehachse 6 vollführt und sich vom zugehörigen Anschlag 9 entfernt hat.The detailed design of the individual elements is now based on the Figures 3A and 3B explained. the Figure 3A shows an opening process of the double pawl locking mechanism starting from the closed position in the 1 . It can be seen that for this purpose the pawl 3 has been acted upon with the aid of the actuating element 11 and has carried out the clockwise movement already described above about its axis of rotation 6 and has moved away from the associated stop 9 .

Tatsächlich ist die Komfortklinke 2 zunächst einmal insgesamt zweiarmig ausgebildet. An dieser Stelle findet sich einerseits ein in der Schließposition der Komfortklinke 2 am Anschlag 8 anliegender Anschlagarm 2a und ist anderseits ein Konturenarm 2b realisiert. Der Anschlag 8 mag aus zwei Elementen zusammengesetzt sein, was jedoch für die nachfolgenden Betrachtungen irrelevant ist. Der Anschlagarm 2a und der Konturenarm 2b der Komfortklinke 2 schließen nach dem Ausführungsbeispiel in etwa einen stumpfen Winkel ein, wobei die Drehachse 5 der Komfortklinke 2 im Bereich oder in der Nähe des Scheitels dieses stumpfen Winkels angeordnet ist.In fact, the comfort pawl 2 is initially designed with two arms overall. At this point there is on the one hand a stop arm 2a resting against the stop 8 in the closed position of the comfort pawl 2 and on the other hand a contour arm 2b realized. The stop 8 may be composed of two elements, but this is irrelevant for the following considerations. According to the exemplary embodiment, the stop arm 2a and the contoured arm 2b of the comfort pawl 2 enclose an obtuse angle, with the axis of rotation 5 of the comfort pawl 2 being arranged in the area or near the apex of this obtuse angle.

Der Konturenarm 2b weist zwei Konturen 12; 13a, 13b, 13c, auf. Die beiden Konturen 12; 13a, 13b, 13c sind dabei einerseits als Rastkontur 12 und andererseits als Öffnungskontur 13a, 13b, 13c ausgebildet. Die Rastkontur 12 und die Öffnungskontur 13a, 13b, 13c der Komfortklinke 2 sind örtlich und funktional voneinander verschieden ausgelegt. Tatsächlich findet sich die Rastkontur 12 radial auswärts im Vergleich zu der Drehachse 5 der Komfortklinke 2, während die Öffnungskontur 13a, 13b, 13c radial einwärts im Vergleich zu der betreffenden Drehachse 5 angeordnet ist, wie man bei einer vergleichenden Betrachtung der Figuren 3A und 3B erkennt.The contour arm 2b has two contours 12; 13a, 13b, 13c, on. The two contours 12; 13a, 13b, 13c are designed on the one hand as a latching contour 12 and on the other hand as an opening contour 13a, 13b, 13c. The latching contour 12 and the opening contour 13a, 13b, 13c of the comfort pawl 2 are designed to be different from one another in terms of location and function. In fact, the latching contour 12 is located radially outwards compared to the axis of rotation 5 of the comfort latch 2, while the opening contour 13a, 13b, 13c is arranged radially inwards compared to the axis of rotation 5 in question, as can be seen in a comparative consideration of the Figures 3A and 3B recognizes.

Nach dem Ausführungsbeispiel ist die Rastkontur 12 als Anlagefläche 12 für eine in Schließposition des Gesperres hieran anliegende Gegenfläche 14 der Sperrklinke 3 ausgebildet, vgl. Fig. 1. Beim in der Fig. 3A dargestellten Öffnungsvorgang des Gesperres sind die beiden Flächen, das heißt die Anlagefläche 12 an der Komfortklinke 2 und die Gegenfläche 14 an der Sperrklinke 3, jeweils voneinander beabstandet und entfernt, wohingegen die beiden Flächen 12, 14 in der Schließposition entsprechend der Fig. 1 gegeneinander anliegen und dafür sorgen, dass die Sperrklinke 3 die Komfortklinke 2 verrastet, und zwar in ihrem in die Drehfalle 1 eingefallenen Zustand.According to the exemplary embodiment, the latching contour 12 is designed as a contact surface 12 for a mating surface 14 of the pawl 3 that rests against it in the closed position of the locking mechanism, cf. 1 . At in the Figure 3A shown opening process of the locking mechanism, the two surfaces, i.e. the contact surface 12 on the comfort pawl 2 and the counter surface 14 on the pawl 3, are spaced apart and removed, whereas the two surfaces 12, 14 in the closed position correspond to the 1 rest against each other and ensure that the pawl 3 latches the comfort pawl 2 in its collapsed state into the rotary latch 1 .

Die Gegenfläche 14 an der Sperrklinke 3 findet sich frontseitig eines Betätigungszapfens 3a der Sperrklinke 3. In geöffnetem Zustand kann der fragliche Betätigungszapfen 3a der Sperrklinke 3 in einen Zwischenraum 13c eintauchen, welcher sich am Konturenarm 2b der Komfortklinke 2 dadurch einstellt, dass die Öffnungskontur 13a, 13b, 13c insgesamt gabelförmig ausgebildet ist. Tatsächlich verfügt die Öffnungskontur 13a, 13b, 13c über einen Betätigungsarm 13a und einen radial hiervon beabstandeten Anschlagarm 13b. Durch die radiale Beabstandung beider Arme 13a, 13b stellt sich zwischen beiden Armen 13a, 13b der bereits angesprochene Zwischenraum 13c ein. Das zeigt insbesondere die den geöffneten Zustand darstellende Fig. 3B.The mating surface 14 on the pawl 3 is located on the front side of an actuating pin 3a of the pawl 3. In the open state, the actuating pin 3a in question of the pawl 3 can dip into an intermediate space 13c, which occurs on the contoured arm 2b of the comfort pawl 2 in that the opening contour 13a, 13b, 13c is fork-shaped overall. In fact, the opening contour 13a, 13b, 13c has an actuating arm 13a and a stop arm 13b spaced radially therefrom. Due to the radial spacing of both arms 13a, 13b is between between the two arms 13a, 13b the space 13c already mentioned. This shows in particular the one showing the open state Figure 3B .

Die Funktionsweise ist wie folgt. Im Schließzustand des Gesperres entsprechend der Darstellung in der Fig. 1 sorgt die Sperrklinke 3 dafür, dass die in die Drehfalle 1 eingefallene Komfortklinke 2 in der Schließposition des Gesperres verrastet wird. Das wird im Detail so umgesetzt, dass die Gegenfläche 14 frontseitig der Sperrklinke 3 mit der Rastkontur bzw. Anlagefläche 12 der Komfortklinke 2 wechselwirkt. Zugleich wechselwirkt der Konturenarm 2b der Komfortklinke 2 und mithin die Komfortklinke 2 insgesamt mit einer Hauptrast 15 der Drehfalle 1, wie ergänzend zur Fig. 1 die Fig. 2D deutlich macht. In der Schließposition des Gesperres liegt die Sperrklinke 3 an ihrem Anschlag 9 an. Da die Drehfalle 1 mit ihrer Hauptrast 15 gegen die Komfortklinke 2 bzw. deren Konturenarm 2b federunterstützt fährt, kann die Drehfalle 1 nicht geöffnet werden und wird der Schließbolzen 10 gefangen (vgl. Fig. 1 und 2D).How it works is as follows. In the closed state of the locking mechanism as shown in the 1 the pawl 3 ensures that the comfort pawl 2 that has fallen into the rotary latch 1 is locked in the closed position of the locking mechanism. This is implemented in detail in such a way that the mating surface 14 on the front of the pawl 3 interacts with the latching contour or contact surface 12 of the comfort pawl 2 . At the same time, the contour arm 2b of the comfort pawl 2 and therefore the comfort pawl 2 interacts overall with a main catch 15 of the rotary latch 1, as in addition to 1 the 2D makes clear. In the closed position of the locking mechanism, the pawl 3 rests against its stop 9 . Since the rotary latch 1 moves with its main catch 15 against the comfort pawl 2 or its contoured arm 2b with spring support, the rotary latch 1 cannot be opened and the locking bolt 10 is caught (cf. 1 and 2D ).

Um nun das Gesperre zu öffnen, übernimmt die Sperrklinke 3 erfindungsgemäß eine Zusatzfunktion, und zwar ergänzend zur Sicherungsfunktion der Komfortklinke 2, wie sie zuvor in der Fig. 1 dargestellt ist. Diese Zusatzfunktion wird anhand der Fig. 3A deutlich und nachfolgend beschrieben. Denn bei einem Öffnungsvorgang des Gesperres sorgt die Sperrklinke 3 zusätzlich dafür, dass die Komfortklinke 2 bei diesem Öffnungsvorgang in Richtung Öffnen beaufschlagt wird. Das macht die Fig. 3A deutlich.To now open the locking mechanism, the pawl 3 according to the invention takes on an additional function, in addition to the security function of the comfort pawl 2, as previously in the 1 is shown. This additional function is based on the Figure 3A clear and described below. Because when the locking mechanism is opened, the pawl 3 also ensures that the comfort pawl 2 is acted upon in the opening direction during this opening process. That makes them Figure 3A clear.

Tatsächlich korrespondiert der hier dargestellte Öffnungsvorgang zunächst einmal dazu, dass die Sperrklinke 3 ausgehend von der Schließposition des Gesperres in der Fig. 1 mithilfe des Stellelementes 11 im in der Fig. 1 dargestellten Uhrzeigersinn zu einer Drehung um ihre Drehachse 6 beaufschlagt wird und den zugehörigen Anschlag 9 verlässt. Als Folge hiervon fährt die Sperrklinke 3 bzw. ihr Zapfen 3a gegen den Betätigungsarm 13a als Bestandteil der Öffnungskontur 13a, 13b, 13c an der Komfortklinke 2.In fact, the opening process shown here corresponds first of all to the fact that the pawl 3 starting from the closed position of the locking mechanism in the 1 using the actuator 11 in the 1 shown clockwise is applied to a rotation about its axis of rotation 6 and the associated stop 9 leaves. As a result, the pawl 3 or its pin 3a moves against the actuating arm 13a as part of the opening contour 13a, 13b, 13c on the comfort pawl 2.

Tatsächlich wird bei diesem Vorgang so gearbeitet, dass die Sperrklinke 3 zum Öffnen der Komfortklinke 2 den Betätigungsarm 13a mit großer Übersetzung beaufschlagt, und zwar an seinem radial äußeren Ende. Das machen entsprechende und in der Fig. 3A durch jeweils Doppelpfeile eingezeichnete Hebelarme deutlich. Entscheidend ist an dieser Stelle ein Hebelarm H1, welcher sich zwischen einer Berührfläche der Sperrklinke 3 und dem radial äußeren Ende des Betätigungsarmes 13a im Abstand zur Drehachse 5 der Komfortklinke 2 einstellt. Der besagte Hebelarm H1 sorgt dafür, dass die Komfortklinke 2 bei dem Öffnungsvorgang zur Überwindung etwaiger Selbsthemmungskräfte oder einer Haftreibung seitens der Sperrklinke 3 mit großem Drehmoment beaufschlagt wird und auch beaufschlagt werden kann.In fact, during this process, the pawl 3 acts on the actuating arm 13a with a large translation in order to open the comfort pawl 2, specifically at its radially outer end. Do the appropriate and in the Figure 3A indicated by double arrows lever arms clearly. A lever arm H 1 , which is set between a contact surface of the pawl 3 and the radially outer end of the actuating arm 13 a at a distance from the axis of rotation 5 of the comfort pawl 2 , is decisive at this point. Said lever arm H 1 ensures that the comfort pawl 2 is applied with a large torque during the opening process to overcome any self-locking forces or static friction on the part of the pawl 3 and can also be applied.

Tatsächlich arbeitet die Sperrklinke 3 beim Öffnungsvorgang entsprechend der Fig. 3A auf den langen bzw. großen Hebelarm H1 der Komfortklinke 2, welcher sich dadurch einstellt, dass die Sperrklinke 3 die Komfortklinke 2 am radial äußeren Ende des Betätigungsarmes 13a beaufschlagt. Als Folge hiervon können bei diesem Öffnungsvorgang auch relativ große Selbsthemmungskräfte bzw. Haftreibungen der Komfortklinke 2 überwunden werden.In fact, the pawl 3 works according to the opening process Figure 3A on the long or large lever arm H 1 of the comfort pawl 2, which is set in that the pawl 3 acts on the comfort pawl 2 at the radially outer end of the actuating arm 13a. As a result of this, relatively large self-locking forces or static friction of the comfort pawl 2 can also be overcome during this opening process.

Jedenfalls beaufschlagt die Sperrklinke 3 beim Öffnungsvorgang des Gesperres die Komfortklinke 2 in Richtung Öffnen. Da die Sperrklinke 3 bei dem Öffnungsvorgang im in der Fig. 1 dargestellten Uhrzeigersinn um ihre Drehachse 6 beaufschlagt wird, führt diese Uhrzeigersinndrehung der Sperrklinke 3 beim Öffnungsvorgang in der Fig. 3A dazu, dass die Komfortklinke 2 um ihre Drehachse 5 im Gegenuhrzeigersinn aufschwenkt. Da bei diesem Vorgang die Sperrklinke 3 zum Öffnen der Komfortklinke 2 den Betätigungsarm 13a mit großer Übersetzung beaufschlagt, lässt sich die Komfortklinke 2 unmittelbar von ihrem Eingriff mit der Drehfalle 1 aufschwenken, und zwar grundsätzlich auch ohne zusätzliche Federkraft.In any case, the pawl 3 acts on the comfort pawl 2 in the opening direction when the locking mechanism is opened. Since the pawl 3 in the opening process in the 1 clockwise shown is acted upon about its axis of rotation 6, this clockwise rotation of the pawl 3 during the opening process in the Figure 3A to the fact that the comfort pawl 2 pivots about its axis of rotation 5 counterclockwise. Since during this process the locking pawl 3 acts on the actuating arm 13a with a large translation to open the comfort pawl 2, the comfort pawl 2 can be swung open directly from its engagement with the rotary latch 1, in principle without additional spring force.

Dadurch, dass die Komfortklinke 2 beim Öffnungsvorgang in der Fig. 3A im dort angedeuteten Gegenuhrzeigersinn um ihre Drehachse 5 aufschwenkt, verlässt auch der Konturenarm 2b der Komfortklinke 2 die Hauptrast 15 der Drehfalle 1. Als Folge hiervon wird die Drehfalle 1 um ihre Drehachse 4 im in der Fig. 3A angedeuteten Gegenurzeigersinn aufgeschwenkt und gibt den Schließbolzen 10 frei, wie man beim Übergang zum in der Fig. 3B dargestellten geöffneten Zustand erkennt und nachvollziehen kann. Bei dem beschriebenen Öffnungsvorgang des Gesperres beaufschlagt die Sperrklinke 3 nicht nur den Betätigungsarm 13a der Komfortklinke 2 bzw. der Öffnungskontur 13a, 13b, 13c an seinem radial äußeren Ende. Sondern dieser Öffnungsvorgang führt auch dazu, dass die Sperrklinke 3 mit ihrem Betätigungszapfen 3a und der frontseitig des Betätigungszapfens 3a angeordneten Gegenfläche 14 zunehmend in den Zwischenraum 13c zwischen dem Betätigungsarm 13a und dem Anschlagarm 13b der Öffnungskontur 13a, 13b, 13c eintaucht.The fact that the comfort pawl 2 during the opening process in the Figure 3A pivots in the counterclockwise direction indicated there about its axis of rotation 5, the contour arm 2b of the comfort latch 2 also leaves the main catch 15 of the rotary latch 1. As a result, the rotary latch 1 is about its axis of rotation 4 in the Figure 3A indicated counterclockwise pivoted and releases the locking bolt 10, as in the transition to the Figure 3B recognizes and understands the open state shown. During the opening process of the locking mechanism described, the pawl 3 not only acts on the actuating arm 13a of the comfort pawl 2 or the opening contour 13a, 13b, 13c at its radially outer end. But this opening process also means that the pawl 3 with its actuating pin 3a and the mating surface 14 arranged on the front side of the actuating pin 3a increasingly dips into the intermediate space 13c between the actuating arm 13a and the stop arm 13b of the opening contour 13a, 13b, 13c.

Am Ende dieser Öffnungsbewegung ist die Sperrklinke 3 mit ihrem Betätigungszapfen 3a vollständig in den fraglichen Zwischenraum 13c eingetaucht, wie man der Fig. 3B entnimmt, die den geöffneten Zustand des Kraftfahrzeugschlosses im Anschluss an den in der Fig. 3A wiedergegebenen Öffnungsvorgang zeigt. Außerdem beaufschlagt die Sperrklinke 3 den Betätigungsarm 13a der Komfortklinke 2 in diesem geöffneten und in der Fig. 3B dargestellten Zustand lediglich mit kleiner Übersetzung, und zwar an seinem radial inneren Ende. Dazu korrespondiert ein in der Fig. 3B dargestellter Hebelarm H2, welcher über eine geringere Länge als der Hebelarm H1 beim Öffnungsvorgang in der Fig. 3A verfügt. Das lässt sich darauf zurückführen, dass in geöffnetem Zustand nach der Fig. 3B die Komfortklinke 2 eine etwaige Haftreibung bereits überwunden hat und in die Gleitreibung übergegangen ist, so dass nur noch geringere Kräfte erforderlich sind, um die Komfortklinke 2 in diesem geöffneten Zustand zu halten. Hierfür sorgt die Sperrklinke 3, welche in geöffnetem Zustand die Komfortklinke 2 unter Berücksichtigung des kürzeren Hebelarmes H2 beaufschlagt.At the end of this opening movement, the pawl 3 is completely immersed with its actuating pin 3a in the gap 13c in question, as the Figure 3B removes the open state of the motor vehicle lock following the in the Figure 3A reproduced opening process shows. In addition, the pawl 3 acts on the actuating arm 13a of the comfort pawl 2 in this open and in the Figure 3B State shown only with a small translation, namely at its radially inner end. This corresponds to a in the Figure 3B illustrated lever arm H 2 , which has a shorter length than the lever arm H 1 during the opening process in the Figure 3A has. This can be attributed to the fact that in the open state after the Figure 3B the comfort pawl 2 has already overcome any static friction and has switched to sliding friction, so that only lower forces are required to keep the comfort pawl 2 in this open state. This is ensured by the pawl 3, which acts on the comfort pawl 2 in the open state, taking into account the shorter lever arm H 2 .

In den Figuren 2A bis 2D ist der umgekehrte Vorgang ausgehend vom geöffneten Zustand nach der Fig. 3B bis hin zum Schließzustand entsprechend der Fig. 1 dargestellt. Das heißt, der geöffnete Zustand entsprechend der Fig. 3B entspricht der Darstellung in der Fig. 2A, wohingegen der Schließzustand des Gesperres nach der Fig. 1 zur Darstellung in der Fig. 2D korrespondiert.In the Figures 2A to 2D is the reverse process starting from the open state after the Figure 3B up to the closed state according to the 1 shown. That is, the open state according to the Figure 3B corresponds to the representation in the Figure 2A , whereas the closed state of the ratchet after the 1 for display in the 2D corresponds.

Man erkennt, dass ausgehend von dem geöffneten Zustand in der Fig. 2A bei einem Schließvorgang und im Übergang zur Fig. 2B die Komfortklinke 2 zunächst mit einer Vorrast 16 an der Drehfalle 1 wechselwirkt. Denn beim Übergang von dem geöffneten Zustand in der Fig. 2A zur Vorraststellung nach der Fig. 2B sorgt der in das Gesperre einfahrende Schließbolzen 10 dafür, dass die Drehfalle 1 im in der Fig. 2A dargestellten Uhrzeigersinn verschwenkt wird. Dadurch kommt die Komfortklinke 2 in Eingriff mit der Vorrast 16 der Drehfalle 1.It can be seen that starting from the open state in the Figure 2A during a closing process and in the transition to Figure 2B the comfort pawl 2 first interacts with a first catch 16 on the rotary latch 1. Because in the transition from the open state in the Figure 2A for pre-locking after Figure 2B ensures that the locking bolt 10 retracting into the locking mechanism ensures that the rotary latch 1 in the Figure 2A shown is pivoted clockwise. As a result, the comfort pawl 2 engages with the first catch 16 of the rotary latch 1.

Beim Übergang von der Vorraststellung nach der Fig. 2B zur Überhubposition entsprechend der Fig. 2C hat sich die Drehfalle 1 insgesamt mit ihrer Hauptrast 15 von der Komfortklinke 2 entfernt. Das mag durch einen zusätzlich am Gesperre 1, 2, 3 angreifenden und nicht ausdrücklich dargestellten Zuziehantrieb bewerkstelligt werden. Der Zuziehbetrieb sorgt dafür, dass die Drehfalle 1 ausgehend von der Vorraststellung der Fig. 2B im Uhrzeigersinn motorisch weiter beaufschlagt wird und dadurch in die Überhubposition nach der Fig. 2C gelangt. Nach Wegfall einer entsprechenden Zuziehkraft geht das Gesperre von der Überhubposition entsprechend der Darstellung in der Fig. 2C in die Hauptraststellung nach der Fig. 2D über.During the transition from the pre-locked position to the Figure 2B to the overtravel position according to the Figure 2C the rotary latch 1 has moved away from the comfort pawl 2 overall with its main catch 15 . This may be accomplished by an additional pull-close drive that acts on the locking mechanism 1, 2, 3 and is not explicitly shown. The closing operation ensures that the rotary latch 1 starting from the pre-locked position Figure 2B clockwise is further applied by a motor and thereby in the overstroke position after Figure 2C reached. After the elimination of a corresponding closing force, the locking mechanism moves from the overtravel position as shown in FIG Figure 2C into the main detent position after the 2D above.

In der Hauptraststellung nach der Fig. 2D liegt die Drehfalle 1 mit ihrer Hauptrast 15 an der Komfortklinke 2 bzw. dem Konturenarm 2b der Komfortklinke 2 an, wie dies zuvor bereits beschrieben wurde.In the main detent after the 2D the rotary latch 1 rests with its main catch 15 on the comfort pawl 2 or the contoured arm 2b of the comfort pawl 2, as has already been described above.

BezugszeichenlisteReference List

1, 2, 31, 2, 3
Gesperre / Doppelklinken-GesperreRatchet / double pawl ratchet
11
Drehfallerotary latch
22
Komfortklinkecomfort latch
2a2a
Anschlagarmstop arm
2b2 B
Konturenarmlow profile
2c2c
Betätigungsarmoperating arm
33
Sperrklinkepawl
4, 5, 64, 5, 6
Drehachsenaxes of rotation
77
Schlosskastenlock box
8, 98, 9
Anschläge / AnschlagdämpferStops / stop dampers
1010
Schließbolzenlocking bolt
1111
Stellelement / Auslösehebelactuator / release lever
12, 1312, 13
Konturcontour
1212
Rastkontur / AnlageflächeLocking contour / contact surface
13a, 13b, 13c13a, 13b, 13c
Öffnungskonturopening contour
13a13a
Betätigungsarmoperating arm
13b13b
Anschlagarmstop arm
13c13c
Zwischenraumspace
1414
Gegenflächecounter surface
1515
Hauptrastmain rest
H1H1
längerer Hebelarmlonger lever arm
H2H2
kürzerer Hebelarmshorter lever arm

Claims (6)

  1. Motor vehicle latch, in particular motor vehicle door latch, comprising a locking mechanism having a catch (1), a comfort pawl (2), and a pawl (3), the pawl (3), at least when the locking mechanism (1, 2, 3) in the closed position, locking the comfort pawl (2) when the comfort pawl is engaged in the catch (1), the pawl (3) additionally acting on the comfort pawl (2) in the opening direction during at least one opening process of the locking mechanism, the comfort pawl (2) having a ratchet contour (12) and an opening contour (13a, 13b, 13c), the pawl (3) interacting with the ratchet contour (12) when the locking mechanism is in the closed position and interacting with the opening contour (13a, 13b, 13c) to open the locking mechanism, and the opening contour (13a, 13b, 13c) being fork-shaped and having an operating arm (13a) and a stop arm (13b) which is spaced radially therefrom so as to define a gap (13c), characterized in that the pawl (3) acts on the operating arm (13a) with a high degree of leverage, specifically at the radially outer end of said arm, in order to open the comfort pawl (2), the pawl (3) entering in the gap (13c) and acting on the operating arm (13a) with a low degree of leverage, specifically at the radially inner end of said arm, when the locking mechanism is in the open state.
  2. Motor vehicle latch according to claim 1, characterized in that the ratchet contour (12) and the opening contour (13a, 13b, 13c) of the comfort pawl (2) are designed to differ from one another in terms of location and function.
  3. Motor vehicle latch according to either claim 1 or claim 2, characterized in that the ratchet contour (12) is arranged radially outward with respect to an axis of rotation (5) of the comfort pawl (2) and the opening contour (13a, 13b, 13c) is arranged radially inward with respect to the axis of rotation (5).
  4. Motor vehicle latch according to any of claims 1 to 3, characterized in that the two contours (12; 13a, 13b, 13c) are arranged on a common lever arm (2b) of the two-armed comfort pawl (2).
  5. Motor vehicle latch according to any of claims 1 to 4, characterized in that the ratchet contour (12) is designed as an abutment surface (12) for a mating surface (14) of the pawl (3), which mating surface abuts said abutment surface when the locking mechanism is in the closed position.
  6. Motor vehicle latch according to claim 5, characterized in that the mating surface (14) of the pawl (3) is arranged on the front of an operating pin (3a).
EP19797551.9A 2018-10-23 2019-10-18 Motor vehicle lock, in particular motor vehicle door lock Active EP3870785B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018126288.4A DE102018126288A1 (en) 2018-10-23 2018-10-23 Motor vehicle lock, in particular motor vehicle door lock
PCT/DE2019/100910 WO2020083438A1 (en) 2018-10-23 2019-10-18 Motor vehicle lock, in particular motor vehicle door lock

Publications (2)

Publication Number Publication Date
EP3870785A1 EP3870785A1 (en) 2021-09-01
EP3870785B1 true EP3870785B1 (en) 2022-07-06

Family

ID=68426052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19797551.9A Active EP3870785B1 (en) 2018-10-23 2019-10-18 Motor vehicle lock, in particular motor vehicle door lock

Country Status (3)

Country Link
EP (1) EP3870785B1 (en)
DE (1) DE102018126288A1 (en)
WO (1) WO2020083438A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11492826B2 (en) * 2019-05-09 2022-11-08 Brose Schliesssysteme Gmbh & Co. Kommanditgesellschaft, Wuppertal Motor vehicle lock

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607546B1 (en) * 1986-12-02 1989-03-10 Rockwell Cim LOCK, ESPECIALLY FOR A MOTOR VEHICLE DOOR
FR2828517B1 (en) * 2001-08-13 2003-10-03 Valeo Securite Habitacle MOTOR VEHICLE LOCK WITH TWO RATCHETS
DE102008028256A1 (en) 2008-06-13 2009-12-24 Kiekert Ag Locking device with two pawls and motor-driven actuator
DE102009021297A1 (en) * 2009-05-14 2010-11-25 Inteva Products Europe Gmbh Motor vehicle lock
US8235428B2 (en) * 2009-07-14 2012-08-07 Kiekert Ag Lock unit having a slotted pawl
GB2480860B (en) * 2010-06-04 2014-05-21 Body Systems Usa Llc Latch assembly
US9212509B2 (en) * 2013-03-27 2015-12-15 Kiekert Ag Locking mechanism
US9534425B2 (en) * 2013-12-05 2017-01-03 Kiekert Ag Lock for a motor vehicle

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WO2020083438A1 (en) 2020-04-30
EP3870785A1 (en) 2021-09-01

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