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EP3074581B1 - Motor vehicle door lock - Google Patents

Motor vehicle door lock Download PDF

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Publication number
EP3074581B1
EP3074581B1 EP14806167.4A EP14806167A EP3074581B1 EP 3074581 B1 EP3074581 B1 EP 3074581B1 EP 14806167 A EP14806167 A EP 14806167A EP 3074581 B1 EP3074581 B1 EP 3074581B1
Authority
EP
European Patent Office
Prior art keywords
bulge
catch
pawl
motor vehicle
vehicle door
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
EP14806167.4A
Other languages
German (de)
French (fr)
Other versions
EP3074581A1 (en
Inventor
Michael Strathmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kiekert AG
Original Assignee
Kiekert AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kiekert AG filed Critical Kiekert AG
Publication of EP3074581A1 publication Critical patent/EP3074581A1/en
Application granted granted Critical
Publication of EP3074581B1 publication Critical patent/EP3074581B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means
    • E05B77/38—Cushion elements, elastic guiding elements or holding elements, e.g. for cushioning or damping the impact of the bolt against the striker during closing of the wing
    • 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
    • E05B15/16—Use of special materials for parts of locks
    • E05B15/1635—Use of special materials for parts of locks of plastics materials
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means
    • E05B77/40—Lock elements covered by silencing layers, e.g. coatings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • 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
    • E05B15/16—Use of special materials for parts of locks
    • E05B15/1635—Use of special materials for parts of locks of plastics materials
    • E05B2015/165—Use of special materials for parts of locks of plastics materials for bolts

Definitions

  • the invention relates to a motor vehicle door lock according to the preamble of claim 1 and to a manufacturing method for a motor vehicle door lock according to the preamble of claim 9.
  • the catch has a buffer pocket, which is assigned in the closing direction of the catch of the previously mentioned buffer stop for impact reduction.
  • the buffer pocket is realized as a slot in a plastic casing of the rotary latch.
  • the bouncing can be attributed to the fact that during the closing process of the locking catch the case trapped metallic hits hard with considerable speed and thus closing energy on the pawl, so that a rebound of the catch is possible and observed, especially any elasticities, for example, a door rubber seal allow such movements.
  • any elasticities for example, a door rubber seal allow such movements.
  • This results in the referenced bouncing. Due to the bouncing processes described may occur in addition to the metallic locking noises own bouncing noises, which are perceived as disturbing.
  • EP 1 516 986 A2 describes a motor vehicle door lock according to the preamble of claim 1 and a method for producing a motor vehicle door lock according to the preamble of claim 9.
  • the bulge and the stop are made of the same elastomer.
  • the bulge and the stop are made of the same elastomer.
  • both the bulge and the stop are each made of plastic.
  • different plastics are used according to the invention, namely those with different elasticity or hardness.
  • the bulge and the stop having the recess are produced from different or differently hard plastics.
  • the invention makes it possible to further improve the damping of noise during the closing process compared with the prior art, and in particular to avoid or at least suppress bouncing in the locking mechanism.
  • the hard component of the plastic material for the abutment typically has a Shore D hardness of 40 to 80, and preferably 50 to 65, in this context. It is known that the Shore D hardness of plastics is determined so that a test piece usually designed as a steel pin is pressed by spring force onto the corresponding plastic or its surface. The method for determining the Shore D hardness generally works with a spring preload of 0.55 N.
  • the procedure for measuring the Shore A hardness without spring preload is used with a steel pin. Depending on the penetration depth of the steel pin into the material, the Shore hardness is measured.
  • the invention recommends the use of plastics such as those made of polyester (PES) or polycarbonate (PC).
  • PET polyester
  • PC polycarbonate
  • a possible material is offered under the brand name Hytrel® and goes back to the company DuPont.
  • the Shore D hardness of these materials is in the range of 50 to 65.
  • this has a Shore A hardness of less than 80 and in particular less than 70.
  • the Shore A hardness is below 60.
  • elastomers such as ethylene-acrylate rubber (EA) or fluorosilicone rubber (MFQ).
  • EA ethylene-acrylate rubber
  • MFQ fluorosilicone rubber
  • other elastomers can be used as long as their Shore A hardness is regularly below 80 and in particular less than 70. Very particular preference is given to the use of soft components having a Shore A hardness of less than 60.
  • the particularly "soft" design of the soft component or the bulge takes into account the fact that the bulge in question in general interacts with the stop so that the bulge dips into the recess on or in the attack.
  • the stop regularly has such a recess for the bulge.
  • the advantageously designed as a soft component bulge is formed in the manner of a brake pad, which is received in the recess of the stopper as a hard component and snuggles into the recess.
  • the locking mechanism is not only braked when immersing the bulge in the recess, but also held at the same time, so that the bouncing or bouncing processes previously described not or practically no longer occur.
  • the interaction between the regularly designed as a soft component bulge on the one hand and the stop formed as a hard component on the other hand not only ensures that minor relative movements between the locking mechanism and the stop are allowed and compensated. But the ratchet remains generally in its closed position by the interaction between the bulge and the stop or the recess receiving the bulge.
  • the bulge is provided on the catch.
  • it is usually in the main position of the catch to the described interaction between the bulge and the stop or the stop associated with the recess, so that the previously described bouncing can not or practically no longer occur.
  • the bulge is detachably connected to the rotary latch and / or the pawl.
  • the rotary latch or pawl on the one hand and the bulge on the other hand can be manufactured separately and made of different materials. This is the case regularly, because the catch and the pawl are typically designed as metal parts and in particular steel stampings, whereas the bulge is designed as a plastic part
  • the bulge is designed as a plastic nose.
  • the above-mentioned releasable connection between the bulge on the one hand and the catch or pawl on the other hand can typically be realized and implemented by a plug connection Basically, for coupling of the bulge on the one hand and the rotary latch or pawl also a locking connection, a screw or other detachable connections conceivable.
  • the bulge and the rotary latch or pawl are adhesively connected to each other. But it can also be done so that the bulge is formed integrally with the rotary latch and / or the pawl
  • the rotary latch respectively the pawl may be provided with a plastic sheath, which sheathed not only the catch or pawl, but in addition to Expression of trained on the catch or pawl bulge is used.
  • the bulge In order to hold the catch or the locking mechanism particularly effective in the described main locking position, the bulge typically projects in front of a circumference of the rotary latch. In most cases, the bulge is on or in the area of a rotary nose or may replace this Stops including the associated recess is typically formed in or on a housing of the motor vehicle door lock, thus designed fixed to the housing is mostly used here on a housing cover, which is anyway made of a (hard) plastic, such as polyester or polycarbonate, the previously described suitable plastics for Realization of the hard component or the stop, Consequently, the stopper can be integrally formed with the housing or regularly a housing cover.
  • a (hard) plastic such as polyester or polycarbonate
  • the invention is based on the recognition that the catch and the pawl or the locking mechanism are mounted in a metallic lock case, which is covered by means of the housing or the addressed housing cover.
  • the housing cover in question generally extends above the lock case.
  • the stop can be easily defined on the housing cover and protrudes in this way into the lock case in order to interact with the bulge on the rotary latch respectively the pawl can.
  • the housing or the housing cover is generally produced in the course of a plastic injection molding process.
  • the invention also relates to a method for producing a motor vehicle door lock, in which the bulge on the one hand and the stop on the other hand are made of the different plastics or different hard plastics, in any case, the described jamming of the catch or pawl regularly in the Schorastsiellung of Locks that the locking mechanism is fixed. This will greatly or completely reduce any bounce events observed in the prior art.
  • the rotary latch encounters the pawl in the described Hauptastastwolf at a significantly lower speed than is observed in the prior art
  • a motor vehicle door lock is shown, of which only a locking mechanism 1, 2 is shown in detail.
  • a housing 3 at least partially visible.
  • the housing 3 is regularly a plastic housing or a plastic housing cover 3.
  • the locking mechanism 1, 2 is mounted in contrast in a unspecified lock case 10
  • the lock case 10 is made of a metal, in particular steel, and may be designed in cross-section U-shaped.
  • the plastic housing or the plastic housing cover 3 extends substantially parallel to a main plane of the lock case 10, as the Figure 1A suggests. In this Representation can be seen that the plastic housing cover 3 is arranged in a plan view above the lock case 10.
  • the locking mechanism 1, 2 consists essentially of a rotary latch 1 and a pawl 2 together.
  • the locking mechanism 1, 2 is in the functional position after the Fig. 1A illustrated in its open or Vorraswolf whereas the functional position of FIG. 18 corresponds to the main locking position of the locking mechanism 1, 2.
  • this is only an example and not restrictive.
  • a fixed housing stop 4 is now shown for the locking mechanism 1.2,
  • the stop in question 4 is formed in the housing 3 and a housing part, in this case integrally formed on the plastic housing cover 3. That is, the plastic housing cover 3 on the one hand and the stopper 4 on the other hand represent in the embodiment an integral component, which is produced by a plastic injection molding or has been produced.
  • the abutment 4 already mentioned interacts with a bulge 6 on the rotary latch 1.
  • the bulge 6 can alternatively or additionally also be formed or formed on the locking pawl 2, which is not shown.
  • the catch 1 may still have a plastic sheath 7.
  • both the bulge 6 and the stop 4 are each made of plastic.
  • plastics of different hardnesses are used, as has already been described in the introduction.
  • the bulge 6 is formed as a soft component having a Shore A hardness of less than 60.
  • the stop 4 is a hard component made of a plastic having a Shore D hardness of 40 to 80.
  • the bulge 6 is formed in the embodiments as a brake pad 6.
  • the bulge or the brake pad 6 engages in the main locking position of the locking mechanism 1, 2 in a recess 5 of the stopper 4.
  • the stop 4 is formed in supervision mostly triangular.
  • the stop 4 is a web arrangement which encloses an open surface 13. In the web arrangement, the recess 5 is integrated.
  • the stop 4 in the variant of the Fig. 2 solid and the recess 5 is defined in this massive plastic part.
  • an inlet ramp 8 is realized in this case.
  • the inlet ramp 8 leads the recess 5 in the closing direction S of the rotary latch 1 of the recess 5 ahead.
  • the rotary latch 1 is in both cases rotatably mounted about an axis 9 rotatably in the lock case in question To the catch 1 and the locking mechanism 1, 2 in the in the FIGS. 1B and 2 Consequently, the catch 1 is pivoted so far clockwise or the closing direction S until the pawl 2 engages in a Hauptrastausnaturalung 11 of the catch 1 and can also intervene
  • the starting position of the catch 1 in this closing operation is on the one hand in the Fig. 1A and on the other hand dot-dashed in the Fig. 2 indicated.
  • the inlet ramp 8 ensures that the bulge 6 is increasingly compressed. Because the inlet ramp 8 leads not only the recess 5 in the closing direction S ahead, but forms in connection with the circumference 12 of the catch 1 during the closing process of the locking mechanism 1, 2 a quasi conically tapered slot, this causes the bulge 6 with the aid of Inlet ramp 8 is compressed as described and only when reaching the recess 5 in the stop 4 expands.
  • the bulge 6 is detachably connected to the rotary latch 1 Basically, the pawl 2 can be equipped with a detachably connected bulge 6, which, however, is not shown.
  • the bulge 6 is a plastic nose 6 or the brake pad 6 already described.
  • the bulge 6 or plastic nose is connected to the rotary catch 1 with the aid of a plug connection 14, 15.
  • the connector 14, 15 is in the example of a circular arc-shaped plug 14 and a complementary circular arc-shaped plug-in recess 15 together
  • the plug connection 14, 15 can also be a latching connection, a screw or other releasable connection between the bulge 6 and the catch 1 and the pawl 2 are realized.
  • the bulge 6 but also be integrally formed with the rotary latch 1 and / or the pawl 2. This is in the embodiment of the Fig. 2 represented where the bulge 6 is a part of the plastic sheath 7 or can represent.
  • the recess 5 on the one hand and the bulge or the brake pad 6 on the other hand are adapted to one another by their design and expansion.
  • the catch 1 is latched in the main locking position of the locking mechanism 1, 2 as it were opposite the housing 3 or the plastic housing cover 3. Because in the main locking position act the bulge 6 and the recess 5 as a detent with locking cams 6 and 5 Rastaus Principleung. As a result any pivoting or swinging movements of the catch 1 are effectively suppressed about its axis 9 In this way, in the context of the invention in the state of Technique observed bouncing between the catch 1 and the pawl 2 not observed (more).

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  • Lock And Its Accessories (AREA)

Description

Die Erfindung betrifft einen Kraftfahrzeugtürverschluss gemäß dem Oberbegriff des Anspruchs 1 sowie ein Herstellungsverfahren für einen Kraftfahrzeugtürverschluss gemäß dem Oberbegriff des Anspruchs 9.The invention relates to a motor vehicle door lock according to the preamble of claim 1 and to a manufacturing method for a motor vehicle door lock according to the preamble of claim 9.

Zur Geräuschminimierung in Kraftfahrzeugtürverschlüssen werden verschiedene Ansätze verfolgt. So arbeitet man in der Praxis im Regelfall mit einer Kunststoffummantelung der Drehfalle, um "metallische Geräusche" beim Schließ- und Öffnungsvorgang des Gesperres auf ein Minimum zu reduzieren. Darüber hinaus gibt es eine Vielzahl weiterer Ansätze, so beispielsweise einen Bremskeil im gattungsbildenden Stand der Technik nach der DE 10 2005 007 433 A1 . Neben dem Bremskeil zum geräuschmindernden Abbremsen der Drehfalle im Überhubbereich im Zuge ihres Auflaufens auf einen Endanschlag ist zusätzlich noch ein Pufferanschlag zur Aufprallminderung beim Schließvorgang vorgesehen.To minimize noise in motor vehicle door locks various approaches are pursued. So you work in practice usually with a plastic sheathing of the catch to reduce "metallic noise" during the closing and opening process of the locking to a minimum. In addition, there are a variety of other approaches, such as a brake wedge in the generic state of the art after the DE 10 2005 007 433 A1 , In addition to the brake wedge for noise-reducing braking of the catch in the overstroke in the course of their casserole on an end stop a buffer stop is also provided for impact reduction during closing.

Zu diesem Zweck verfügt die Drehfalle über eine Puffertasche, welcher in Schließrichtung der Drehfalle der zuvor bereits angesprochene Pufferanschlag zur Aufprallminderung zugeordnet ist. Die Puffertasche ist als Schlitz in einer Kunststoffummantelung der Drehfalle realisiert. Außerdem wirkt mit dem Pufferanschlag eine Auswölbung zusammen, die in Hauptraststellung der Drehfalle zwischen der Puffertasche und dem Pufferanschlag angeordnet ist. Dadurch wird bereits ein besonders geräuschmindernder Betrieb und eine wirksame Geräuschdämpfung insbesondere beim Schließen des bekannten Gesperres beobachtet.For this purpose, the catch has a buffer pocket, which is assigned in the closing direction of the catch of the previously mentioned buffer stop for impact reduction. The buffer pocket is realized as a slot in a plastic casing of the rotary latch. In addition, cooperates with the buffer stop a bulge, which is arranged in the main latching position of the rotary latch between the buffer pocket and the buffer stop. As a result, a particularly noise-reducing operation and an effective noise attenuation is observed especially when closing the known locking mechanism.

Der Stand der Technik kann jedoch nicht in allen Aspekten zufriedenstellen. Denn neben metallischen Schließgeräuschen, die durch die bekannte Lösung wirksam gedämpft werden, beobachtet man zunehmend in der Praxis auch Prellgeräusche, die durch schwingende Bewegungen der Drehfalle beim Schließvorgang verursacht werden. Solche Kraftfahrzeugtürschwingungen können sowohl bei mechanischen Schließvorgängen als auch dann auftreten, wenn der Schließvorgang beispielsweise mit einer Zuziehhilfe unterstützt wird.However, the prior art can not be satisfactory in all aspects. Because in addition to metallic locking noises, which are effectively damped by the known solution, it is increasingly observed in practice also bouncing noises, which are caused by oscillating movements of the catch during the closing process. Such motor vehicle door vibrations can occur both during mechanical closing operations and when the closing operation is assisted, for example, with a closing aid.

Im Kern lässt sich das Prellen darauf zurückführen, dass beim Schließvorgang des Gesperres die dabei zugezogene Drehfalle mit erheblicher Geschwindigkeit und folglich Schließenergie auf die Sperrklinke metallisch hart auftrifft, so dass ein Rückprall der Drehfalle hierbei möglich ist und beobachtet wird, zumal etwaige Elastizitäten beispielsweise einer Türgummidichtung solche Bewegungen zulassen. Jedenfalls treten in der Praxis Bewegungen der Drehfalle beim Schließvorgang und insbesondere beim Erreichen der Hauptraststellung in Richtung auf die Sperrklinke und von dieser abprallend sowie erneut auf die Sperrklinke gerichtet auf. Daraus resultiert das in Bezug genommene Prellen. Durch die beschriebenen Prellvorgänge treten unter Umständen neben den metallischen Schließgeräuschen eigene Prellgeräusche auf, die als störend empfunden werden.In essence, the bouncing can be attributed to the fact that during the closing process of the locking catch the case trapped metallic hits hard with considerable speed and thus closing energy on the pawl, so that a rebound of the catch is possible and observed, especially any elasticities, for example, a door rubber seal allow such movements. In any case, occur in practice movements of the catch during the closing process and in particular when reaching the main locking position in the direction of the pawl and rebounding from this and again directed to the pawl. This results in the referenced bouncing. Due to the bouncing processes described may occur in addition to the metallic locking noises own bouncing noises, which are perceived as disturbing.

EP 1 516 986 A2 beschreibt einen Kraftfahrzeugtürverschluss gemäß dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zur Herstellung eines Kraftfahrzeugtürverschlusses gemäß dem Obergriff des Anspruchs 9. Bei diesem bekannten Kraftfahrzeugtürverschluss sind die Auswölbung und der Anschlag aus demselben Elastomer hergestellt. Bei diesem bekannten Verfahren werden die Auswölbung und der Anschlag aus demselben Elastomer hergestellt. EP 1 516 986 A2 describes a motor vehicle door lock according to the preamble of claim 1 and a method for producing a motor vehicle door lock according to the preamble of claim 9. In this known motor vehicle door lock the bulge and the stop are made of the same elastomer. In this known method, the bulge and the stop are made of the same elastomer.

Vor diesem Hintergrund schlägt die Erfindung die Gegenstände der unabhängigen Ansprüche vor. Vorteilhafte Ausführungsformen der Erfindung sind in den abhängigen Ansprüchen beschrieben.Against this background, the invention proposes the subject matters of the independent claims. Advantageous embodiments of the invention are described in the dependent claims.

Die Erfindung schlägt gemäß einem ersten Aspekt einen Kraftfahrzeugtürverschluss vor, mit

  • zumindest einem Gesperre aus im Wesentlichen Drehfalle und Sperrklinke,
  • einer Auswölbung aus Kunststoff an der Drehfalle und/oder der Sperrklinke,
  • wenigstens einem gehäusefesten Anschlag für das Gesperre, der eine Ausnehmung für die Auswölbung aufweist und mit der Auswölbung wechselwirkt.
The invention proposes according to a first aspect of a motor vehicle door lock, with
  • at least one locking mechanism consisting essentially of a catch and a pawl,
  • a bulge of plastic on the rotary latch and / or the pawl,
  • at least one housing-fixed stop for the locking mechanism, which has a recess for the bulge and interacts with the bulge.

Erfindungsgemäß sind die Auswölbung und der die Ausnehmung aufweisende Anschlag aus verschiedenen bzw. verschieden harten Kunststoffen hergestellt. D.h., sowohl die Auswölbung als auch der Anschlag bestehen jeweils aus Kunststoff. Dabei kommen erfindungsgemäß jedoch verschiedene Kunststoffe zum Einsatz, nämlich solche mit unterschiedlicher Elastizität bzw. Härte.According to the bulge and the recess having the stop are made of different or different hard plastics. That is, both the bulge and the stop are each made of plastic. However, different plastics are used according to the invention, namely those with different elasticity or hardness.

Die Erfindung schlägt gemäß einem zweiten Aspekt ein Verfahren zur Herstellung eines Kraftfahrzeugtürverschlusses vor, mit

  • zumindest einem Gesperre aus im Wesentlichen Drehfalle und Sperrklinke,
  • einer Auswölbung aus Kunststoff an der Drehfalle und/oder der Sperrklinke,
  • wenigstens einem gehäusefesten Anschlag für das Gesperre, der eine Ausnehmung für die Auswölbung aufweist und mit der Auswölbung wechselwirkt.
The invention proposes according to a second aspect of a method for producing a motor vehicle door lock, with
  • at least one locking mechanism consisting essentially of a catch and a pawl,
  • a bulge of plastic on the rotary latch and / or the pawl,
  • at least one housing-fixed stop for the locking mechanism, which has a recess for the bulge and interacts with the bulge.

Erfindungsgemäß werden die Auswölbung und der die Ausnehmung aufweisende Anschlag aus verschiedenen bzw. verschieden harten Kunststoffen hergestellt.According to the invention, the bulge and the stop having the recess are produced from different or differently hard plastics.

Die Erfindung ermöglicht, dass die Dämpfung von Geräuschen beim Schließvorgang gegenüber dem Stand der Technik nochmals verbessert ist und insbesondere Prellvorgänge im Gesperre vermieden oder zumindest unterdrückt werden.The invention makes it possible to further improve the damping of noise during the closing process compared with the prior art, and in particular to avoid or at least suppress bouncing in the locking mechanism.

Tatsächlich hat es sich in diesem Zusammenhang als günstig erwiesen, wenn die Auswölbung als Weichkomponente und der Anschlag als Hartkomponente ausgebildet ist. Die Hartkomponente des Kunststoffes für den Anschlag weist in diesem Kontext typischerweise eine Shore-D-Härte von 40 bis 80 und vorzugsweise von 50 bis 65 auf. Bekanntermaßen wird die Shore-D-Härte bei Kunststoffen so ermittelt, dass ein üblicherweise als Stahlstift ausgebildeter Prüfkörper durch Federkraft auf den entsprechenden Kunststoff bzw. dessen Oberfläche gedrückt wird. Dabei arbeitet das Verfahren zur Bestimmung der Shore-D-Härte im Allgemeinen mit einer Federvorlast von 0,55 N.In fact, it has proven to be beneficial in this context, when the bulge is formed as a soft component and the stopper as a hard component. The hard component of the plastic material for the abutment typically has a Shore D hardness of 40 to 80, and preferably 50 to 65, in this context. It is known that the Shore D hardness of plastics is determined so that a test piece usually designed as a steel pin is pressed by spring force onto the corresponding plastic or its surface. The method for determining the Shore D hardness generally works with a spring preload of 0.55 N.

Demgegenüber wird beim Verfahren zur Messung der Shore-A-Härte ohne Federvorlast mit einem Stahlstift gearbeitet. Je nach Eindringtiefe des Stahlstiftes in den Werkstoff bemisst sich die Shore-Härte.In contrast, the procedure for measuring the Shore A hardness without spring preload is used with a steel pin. Depending on the penetration depth of the steel pin into the material, the Shore hardness is measured.

Für die Hartkomponente und folglich den Anschlag empfiehlt die Erfindung den Einsatz von Kunststoffen wie solchen aus Polyester (PES) oder Polycarbonat (PC). Ein mögliches Material wird unter dem Markennamen Hytrel® angeboten und geht auf die Firma DuPont zurück. Die Shore-D-Härte dieser Materialien liegt im Bereich von 50 bis 65.For the hard component and consequently the stop, the invention recommends the use of plastics such as those made of polyester (PES) or polycarbonate (PC). A possible material is offered under the brand name Hytrel® and goes back to the company DuPont. The Shore D hardness of these materials is in the range of 50 to 65.

Für die Weichkomponente und folglich die Auswölbung gilt, dass diese eine Shore-A-Härte von weniger als 80 und insbesondere weniger als 70 aufweist. Vorzugsweise ist die Shore-A-Härte unterhalb von 60 angesiedelt.For the soft component and consequently the bulge, this has a Shore A hardness of less than 80 and in particular less than 70. Preferably, the Shore A hardness is below 60.

Beispiele für geeignete Materialien sind Elastomere, wie beispielsweise Ethylen-Acrylat-Kautschuk (EA) oder auch Fluorsilikon-Kautschuk (MFQ). Grundsätzlich können natürlich auch andere Elastomere zum Einsatz kommen, solange deren Shore-A-Härte regelmäßig unterhalb von 80 und insbesondere weniger als 70 beträgt. Ganz besonders bevorzugt ist der Einsatz von Weichkomponenten mit einer Shore-A-Härte von weniger als 60.Examples of suitable materials are elastomers, such as ethylene-acrylate rubber (EA) or fluorosilicone rubber (MFQ). In principle, of course, other elastomers can be used as long as their Shore A hardness is regularly below 80 and in particular less than 70. Very particular preference is given to the use of soft components having a Shore A hardness of less than 60.

Die besonders "weiche" Auslegung der Weichkomponente bzw. der Auswölbung trägt dem Umstand Rechnung, dass die fragliche Auswölbung im Allgemeinen mit dem Anschlag derart wechselwirkt, dass die Auswölbung in die Ausnehmung am oder im Anschlag eintaucht. Tatsächlich verfügt der Anschlag regelmäßig über eine solche Ausnehmung für die Auswölbung. In diesem Zusammenhang ist die vorteilhaft als Weichkomponente ausgelegte Auswölbung in der Art eines Bremsklotzes ausgebildet, welcher in der Ausnehmung des Anschlages als Hartkomponente aufgenommen wird und sich in die Ausnehmung einschmiegt. Dadurch wird das Gesperre beim Eintauchen der Auswölbung in die Ausnehmung nicht nur abgebremst, sondern zugleich festgehalten, so dass das zuvor bereits beschriebene Prellen oder zugehörige Prellvorgänge nicht oder praktisch nicht mehr auftreten.The particularly "soft" design of the soft component or the bulge takes into account the fact that the bulge in question in general interacts with the stop so that the bulge dips into the recess on or in the attack. In fact, the stop regularly has such a recess for the bulge. In this context, the advantageously designed as a soft component bulge is formed in the manner of a brake pad, which is received in the recess of the stopper as a hard component and snuggles into the recess. As a result, the locking mechanism is not only braked when immersing the bulge in the recess, but also held at the same time, so that the bouncing or bouncing processes previously described not or practically no longer occur.

Denn die Wechselwirkung zwischen der regelmäßig als Weichkomponente ausgelegten Auswölbung einerseits und dem als Hartkomponente ausgebildeten Anschlag andererseits sorgt nicht nur dafür, dass geringfügige Relativbewegungen zwischen dem Gesperre und dem Anschlag zugelassen und ausgeglichen werden. Sondern das Gesperre verbleibt im Allgemeinen in seiner geschlossenen Position durch die Wechselwirkung zwischen der Auswölbung und dem Anschlag bzw. der die Auswölbung aufnehmenden Ausnehmung.Because the interaction between the regularly designed as a soft component bulge on the one hand and the stop formed as a hard component on the other hand not only ensures that minor relative movements between the locking mechanism and the stop are allowed and compensated. But the ratchet remains generally in its closed position by the interaction between the bulge and the stop or the recess receiving the bulge.

Meistens ist die Auswölbung an der Drehfalle vorgesehen. Außerdem kommt es im Regelfall in der Hauptraststellung der Drehfalle zu der beschriebenen Wechselwirkung zwischen der Auswölbung und dem Anschlag bzw. der dem Anschlag zugeordneten Ausnehmung, so dass das zuvor bereits beschriebene Prellen nicht oder praktisch nicht mehr auftreten kann. Denn die im Stand der Technik mit einem Prellen verbundenen Schwenkbewegungen der Drehfalle um ihre Drehachse werden durch den in die Ausnehmung eingreifenden Bremsklotz bzw. die Auswölbung in der beschriebenen Hauptraststellung unterdrückt.Mostly the bulge is provided on the catch. In addition, it is usually in the main position of the catch to the described interaction between the bulge and the stop or the stop associated with the recess, so that the previously described bouncing can not or practically no longer occur. Because in the prior art associated with a bounce pivotal movements of the rotary latch about its axis of rotation are suppressed by the engaging in the recess brake pad or the bulge in the described Haupttraststellung.

Es hat sich bewährt, wenn die Auswölbung lösbar an die Drehfalle und/oder die Sperrklinke angeschlossen ist. Dadurch können die Drehfalle bzw. Sperrklinke einerseits und die Auswölbung andererseits separat gefertigt und aus unterschiedlichen Materialien hergestellt werden. Das ist regelmäßig der Fall, Denn die Drehfalle und die Sperrklinke sind typischerweise als Metallteile und insbesondere Stahlstanzteile ausgebildet, wohingegen die Auswölbung als Kunststoffteil ausgelegt istIt has proven useful if the bulge is detachably connected to the rotary latch and / or the pawl. As a result, the rotary latch or pawl on the one hand and the bulge on the other hand can be manufactured separately and made of different materials. This is the case regularly, because the catch and the pawl are typically designed as metal parts and in particular steel stampings, whereas the bulge is designed as a plastic part

In diesem Zusammenhang hat es sich besonders bewährt, wenn die Auswölbung als Kunststoffnase ausgelegt ist. Dabei kann die zuvor bereits angesprochene lösbare Verbindung zwischen der Auswölbung einerseits und der Drehfalle bzw. Sperrklinke andererseits typischerweise durch eine Steckverbindung realisiert und umgesetzt werden Grundsätzlich sind zur Kopplung von einerseits der Auswölbung und andererseits der Drehfalle bzw. Sperrklinke auch eine Rastverbindung, eine Schraubverbindung oder andere lösbare Verbindungen denkbar.In this context, it has proven particularly useful if the bulge is designed as a plastic nose. The above-mentioned releasable connection between the bulge on the one hand and the catch or pawl on the other hand can typically be realized and implemented by a plug connection Basically, for coupling of the bulge on the one hand and the rotary latch or pawl also a locking connection, a screw or other detachable connections conceivable.

Daneben liegt es aber auch im Rahmen der Erfindung, die Auswölbung fest mit der Drehfalle zu koppeln. Hier ist es beispielsweise denkbar, dass die Auswölbung und die Drehfalle bzw. Sperrklinke adhäsiv miteinander verbunden sind. Es kann aber auch so vorgegangen werden, dass die Auswölbung einstückig mit der Drehfalle und/oder der Sperrklinke ausgebildet ist In diesem Fall mögen die Drehfalle respektive die Sperrklinke mit einer Kunststoffummantelung versehen werden, die nicht nur die Drehfalle bzw, Sperrklinke ummantelt, sondern zusätzlich zur Ausprägung der an der Drehfalle bzw. Sperrklinke ausgebildeten Auswölbung dient.In addition, it is also within the scope of the invention to couple the bulge firmly with the catch. Here it is conceivable, for example, that the bulge and the rotary latch or pawl are adhesively connected to each other. But it can also be done so that the bulge is formed integrally with the rotary latch and / or the pawl In this case, the rotary latch respectively the pawl may be provided with a plastic sheath, which sheathed not only the catch or pawl, but in addition to Expression of trained on the catch or pawl bulge is used.

Um die Drehfalle bzw. das Gesperre besonders wirksam in der beschriebenen Hauptraststellung festhalten zu können, kragt die Auswölbung typischerweise gegenüber einem Umfang der Drehfalle vor. Meistens findet sich die Auswölbung an oder im Bereich einer Drehfallennase oder mag diese ersetzen Der Anschlag inklusive zugehöriger Ausnehmung ist typischerweise in oder an einem Gehäuse des Kraftfahrzeugtürverschluss ausgebildet, folglich gehäusefest ausgelegt Meistens wird hier auf einen Gehäusedeckel zurückgegriffen, der ohnehin aus einem (harten) Kunststoff hergestellt ist, beispielsweise aus Polyester oder Polycarbonat, den zuvor bereits beschriebenen geeigneten Kunststoffen zur Realisierung der Hartkomponente bzw, des Anschlages, Folgerichtig kann der Anschlag einstückig mit dem Gehäuse bzw. regelmäßig einem Gehäusedeckel ausgebildet werden.In order to hold the catch or the locking mechanism particularly effective in the described main locking position, the bulge typically projects in front of a circumference of the rotary latch. In most cases, the bulge is on or in the area of a rotary nose or may replace this Stops including the associated recess is typically formed in or on a housing of the motor vehicle door lock, thus designed fixed to the housing is mostly used here on a housing cover, which is anyway made of a (hard) plastic, such as polyester or polycarbonate, the previously described suitable plastics for Realization of the hard component or the stop, Consequently, the stopper can be integrally formed with the housing or regularly a housing cover.

Hierbei geht die Erfindung von der Erkenntnis aus, dass die Drehfalle und die Sperrklinke bzw. das Gesperre in einem metallischen Schlosskasten gelagert sind, welcher mit Hilfe des Gehäuses bzw. des angesprochenen Gehäusedeckels abgedeckt wird. Dazu erstreckt sich der fragliche Gehäusedeckel im Allgemeinen oberhalb des Schlosskastens. Dadurch kann der Anschlag problemlos an dem Gehäusedeckel definiert werden und ragt auf diese Weise in den Schlosskasten hinein, um mit der Auswölbung an der Drehfalle respektive der Sperrklinke wechselwirken zu können. Das Gehäuse bzw. der Gehäusedeckel wird im Allgemeinen im Zuge eines Kunststoffspritzgussvorganges hergestellt.Here, the invention is based on the recognition that the catch and the pawl or the locking mechanism are mounted in a metallic lock case, which is covered by means of the housing or the addressed housing cover. For this purpose, the housing cover in question generally extends above the lock case. As a result, the stop can be easily defined on the housing cover and protrudes in this way into the lock case in order to interact with the bulge on the rotary latch respectively the pawl can. The housing or the housing cover is generally produced in the course of a plastic injection molding process.

Gegenstand der Erfindung ist auch ein Verfahren zur Herstellung eines Kraftfahrzeugtürverschlusses, bei welchem die Auswölbung einerseits und der Anschlag andererseits aus den verschiedenen Kunststoffen bzw. verschieden harten Kunststoffen hergestellt werden, In jedem Fall sorgt das beschriebene Verklemmen der Drehfalle bzw. Sperrklinke regelmäßig in der Hauptrastsiellung des Gesperres dafür, dass das Gesperre fixiert wird. Dadurch werden etwaige und beim Stand der Technik beobachtete Prellvorgänge stark oder gänzlich reduziert. Außerdem trifft die Drehfalle auf die Sperrklinke in der beschriebenen Hauptraststellung mit deutlich geringerer Geschwindigkeit auf, als dies im Stand der Technik beobachtet wirdThe invention also relates to a method for producing a motor vehicle door lock, in which the bulge on the one hand and the stop on the other hand are made of the different plastics or different hard plastics, in any case, the described jamming of the catch or pawl regularly in the Hauptrastsiellung of Locks that the locking mechanism is fixed. This will greatly or completely reduce any bounce events observed in the prior art. In addition, the rotary latch encounters the pawl in the described Hauptastaststellung at a significantly lower speed than is observed in the prior art

Das lässt sich im Kern darauf zurückführen, dass in der Hauptraststellung die Auswölbung aus dem weichen Kunststoff bzw, der Weichkomponente hierbei zunehmend in die Ausnehmung der Hartkomponente bzw. des Anschlages eintaucht und hierin festgehalten wird. Daraus resultiert ein verringertes Schließgeräusch. - Es sollte abschließend betont werden, dass die Wechselwirkung zwischen der Auswölbung und dem Anschlag selbstverständlich nicht (nur) auf die Hauptraststellung des Gesperres beschränkt ist, sondern beispielsweise auch in der Vorraststellung oder auch der Überhubstellung des Gesperres alternativ oder zusätzlich Wirkung entfalten kann. Hierin sind die wesentlichen Vorteile zu sehen.This can essentially be attributed to the fact that, in the main locking position, the bulge out of the soft plastic or the soft component is increasingly immersed in the recess of the hard component or of the stop and retained therein. This results in a reduced closing noise. - It should be emphasized finally that the interaction between the bulge and the attack is of course not limited to (only) the Haupttraststellung the Gesperres, but also, for example, in the Vorraststellung or the Überhubstellung the Gesperres effect alternatively or additionally. Here are the main benefits.

Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert; Es zeigen:

Fig. 1A und 1B
den erfindungsgemäßen Kraftfahrzeugtürverschluss in einer ersten Ausführungsform in unterschiedlichen Funktionsstellungen und
Fig. 2
eine abgewandelte Ausführungsform.
In the following the invention will be explained in more detail with reference to a drawing showing only one exemplary embodiment; Show it:
Fig. 1A and 1B
the motor vehicle door lock according to the invention in a first embodiment in different functional positions and
Fig. 2
a modified embodiment.

In den Figuren ist ein Kraftfahrzeugtürverschluss dargestellt, von dem lediglich ein Gesperre 1, 2 im Detail gezeigt wird. Neben dem Gesperre 1, 2 ist noch ein Gehäuse 3 zumindest teilweise zu erkennen. Bei dem Gehäuse 3 handelt es sich regelmäßig um ein Kunststoffgehäuse bzw. einen Kunststoffgehäusedeckel 3. Das Gesperre 1, 2 ist demgegenüber in einem nicht näher spezifizierten Schlosskasten 10 gelagertIn the figures, a motor vehicle door lock is shown, of which only a locking mechanism 1, 2 is shown in detail. In addition to the locking mechanism 1, 2 is still a housing 3 at least partially visible. The housing 3 is regularly a plastic housing or a plastic housing cover 3. The locking mechanism 1, 2 is mounted in contrast in a unspecified lock case 10

Der Schlosskasten 10 ist aus einem Metall, insbesondere Stahl, gefertigt und mag im Querschnitt U-förmig ausgelegt sein. Das Kunststoffgehäuse bzw. der Kunststoffgehäusedeckel 3 erstreckt sich im Wesentlichen parallel zu einer Hauptebene des Schlosskastens 10, wie die Figur 1A andeutet. In dieser Darstellung erkennt man, dass der Kunststoffgehäusedeckel 3 in Aufsicht oberhalb des Schlosskastens 10 angeordnet ist.The lock case 10 is made of a metal, in particular steel, and may be designed in cross-section U-shaped. The plastic housing or the plastic housing cover 3 extends substantially parallel to a main plane of the lock case 10, as the Figure 1A suggests. In this Representation can be seen that the plastic housing cover 3 is arranged in a plan view above the lock case 10.

Wie üblich setzt sich das Gesperre 1, 2 aus im Wesentlichen einer Drehfalle 1 und einer Sperrklinke 2 zusammen. Das Gesperre 1, 2 ist in der Funktionsstellung nach der Fig. 1A in seiner geöffneten bzw. seiner Vorrasstellung dargestellt wohingegen die Funktionsstellung nach der Fig. 18 zur Hauptraststellung des Gesperres 1, 2 korrespondiert. Das gilt selbstverständlich nur beispielhaft und nicht einschränkend.As usual, the locking mechanism 1, 2 consists essentially of a rotary latch 1 and a pawl 2 together. The locking mechanism 1, 2 is in the functional position after the Fig. 1A illustrated in its open or Vorrasstellung whereas the functional position of FIG. 18 corresponds to the main locking position of the locking mechanism 1, 2. Of course, this is only an example and not restrictive.

In den Figuren ist nun noch ein gehäusefester Anschlag 4 für das Gesperre 1,2 dargestellt, Der fragliche Anschlag 4 ist in dem Gehäuse 3 bzw. einem Gehäuseteil ausgebildet, vorliegend an den Kunststoffgehäusedeckel 3 angeformt. D.h., der Kunststoffgehäusedeckel 3 einerseits und der Anschlag 4 andererseits stellen im Ausführungsbeispiel ein einstückiges Bauteil dar, welches durch einen Kunststoffspritzgussvorgang hergestellt wird oder hergestellt worden ist.In the figures, a fixed housing stop 4 is now shown for the locking mechanism 1.2, The stop in question 4 is formed in the housing 3 and a housing part, in this case integrally formed on the plastic housing cover 3. That is, the plastic housing cover 3 on the one hand and the stopper 4 on the other hand represent in the embodiment an integral component, which is produced by a plastic injection molding or has been produced.

Sobald das Gesperre 1, 2 seine in der Fig. 18 dargestellte Hauptraststellung einnimmt, wechselwirkt der bereits angesprochene Anschlag 4 mit einer Auswölbung 6 an der Drehfalle 1. Grundsätzlich kann die Auswölbung 6 alternativ oder zusätzlich auch an der Sperrklinke 2 ausgeprägt bzw. ausgebildet sein, was allerdings nicht dargestellt ist. Die Drehfalle 1 mag noch über eine Kunststoffummantelung 7 verfügen.As soon as the locking mechanism 1, 2 assumes its main locking position shown in FIG. 18, the abutment 4 already mentioned interacts with a bulge 6 on the rotary latch 1. Basically, the bulge 6 can alternatively or additionally also be formed or formed on the locking pawl 2, which is not shown. The catch 1 may still have a plastic sheath 7.

Im Rahmen der vorliegenden Anmeldung und erfindungsgemäß sind sowohl die Auswölbung 6 als auch der Anschlag 4 jeweils aus Kunststoff gefertigt. Dabei kommen Kunststoffe unterschiedlicher Härten zum Einsatz, wie dies einleitend bereits beschrieben wurde. Tatsächlich ist die Auswölbung 6 als Weichkomponente mit einer Shore-A-Härte von weniger als 60 ausgebildet. Demgegenüber handelt es sich bei dem Anschlag 4 um eine Hartkomponente aus einem Kunststoff mit einer Shore-D-Härte von 40 bis 80.In the context of the present application and according to the invention, both the bulge 6 and the stop 4 are each made of plastic. Here, plastics of different hardnesses are used, as has already been described in the introduction. In fact, the bulge 6 is formed as a soft component having a Shore A hardness of less than 60. In contrast, is the stop 4 is a hard component made of a plastic having a Shore D hardness of 40 to 80.

Man erkennt, dass die Auswölbung 6 in den Ausführungsbeispielen als Bremsklotz 6 ausgebildet ist Die Auswölbung bzw. der Bremsklotz 6 greift in der Hauptraststellung des Gesperres 1, 2 in eine Ausnehmung 5 des Anschlages 4 ein. Bei der Variante nach den Figuren 1A und 1B ist der Anschlag 4 in Aufsicht größtenteils dreieckig ausgebildet. Außerdem handelt es sich bei dem Anschlag 4 um eine Steganordnung, welche eine Freifläche 13 umschließt. In die Steganordnung ist die Ausnehmung 5 integriert.It can be seen that the bulge 6 is formed in the embodiments as a brake pad 6. The bulge or the brake pad 6 engages in the main locking position of the locking mechanism 1, 2 in a recess 5 of the stopper 4. In the variant of the Figures 1A and 1B the stop 4 is formed in supervision mostly triangular. In addition, the stop 4 is a web arrangement which encloses an open surface 13. In the web arrangement, the recess 5 is integrated.

Demgegenüber ist der Anschlag 4 bei der Variante nach der Fig. 2 massiv ausgebildet und wird die Ausnehmung 5 in diesem massiven Kunststoffteil definiert. Seitlich der Ausnehmung 5 ist in diesem Fall noch eine Einlauframpe 8 realisiert. Die Einlauframpe 8 eilt der Ausnehmung 5 in Schließrichtung S der Drehfalle 1 der Ausnehmung 5 voraus.In contrast, the stop 4 in the variant of the Fig. 2 solid and the recess 5 is defined in this massive plastic part. Laterally of the recess 5, an inlet ramp 8 is realized in this case. The inlet ramp 8 leads the recess 5 in the closing direction S of the rotary latch 1 of the recess 5 ahead.

Tatsächlich ist die Drehfalle 1 in beiden Fällen jeweils um eine Achse 9 drehbar in dem fraglichen Schlosskasten 10 gelagert Um die Drehfalle 1 bzw. das Gesperre 1, 2 in die in den Figuren 1B und 2 dargestellte Hauptraststellung zu überführen, wird folglich die Drehfalle 1 so weit im Uhrzeigersinn bzw. der Schließrichtung S verschwenkt, bis die Sperrklinke 2 in eine Hauptrastausnehmung 11 der Drehfalle 1 eingreift und auch eingreifen kann Die Ausgangsstellung der Drehfalle 1 bei diesem Schließvorgang ist einerseits in der Fig. 1A und andererseits strichpunktiert in der Fig. 2 angedeutet.In fact, the rotary latch 1 is in both cases rotatably mounted about an axis 9 rotatably in the lock case in question To the catch 1 and the locking mechanism 1, 2 in the in the FIGS. 1B and 2 Consequently, the catch 1 is pivoted so far clockwise or the closing direction S until the pawl 2 engages in a Hauptrastausnehmung 11 of the catch 1 and can also intervene The starting position of the catch 1 in this closing operation is on the one hand in the Fig. 1A and on the other hand dot-dashed in the Fig. 2 indicated.

Da der Bremsklotz 6 bzw. die Auswölbung 6 aus Kunststoff aus einer Weichkomponente und folglich einem weichen Elastomer mit der zuvor angegebenen Shore-A-Härte hergestellt ist, wird die Auswölbung bzw. der Bremsklotz 6 bei dem fraglichen Schließvorgang in der Schließrichtung S beim Ausführungsbeispiel nach der Fig. 2 entlang der seitlichen Einlauframpe 8 geführt und zunehmend komprimiert. Denn die Auswölbung 6 kragt radial gegenüber einem Umfang 12 der Drehfalle 1 vor, wie dies auch im Beispielfall der Figuren 1A und 1B zu erkennen ist.Since the brake pad 6 and the bulge 6 made of plastic from a soft component and thus a soft elastomer with the previously specified Shore A hardness, the bulge or the brake pad 6 in the closing in question in the closing direction S in the embodiment after of the Fig. 2 guided along the lateral inlet ramp 8 and increasingly compressed. Because the bulge 6 projects radially in front of a circumference 12 of the rotary latch 1, as in the example of the Figures 1A and 1B can be seen.

Sobald der Bremsklotz bzw. die Auswölbung 6 bei der Variante nach der Fig. 2 in den Bereich der Einlauframpe 8 gelangt, sorgt die Einlauframpe 8 dafür, dass die Auswölbung 6 zunehmend komprimiert wird. Denn die Einlauframpe 8 eilt nicht nur der Ausnehmung 5 in Schließrichtung S voraus, sondern bildet in Verbindung mit dem Umfang 12 der Drehfalle 1 beim Schließvorgang des Gesperres 1, 2 einen quasi konisch zulaufenden Schlitz, Dieser führt dazu, dass die Auswölbung 6 mit Hilfe der Einlauframpe 8 wie beschrieben komprimiert wird und erst bei Erreichen der Ausnehmung 5 im Anschlag 4 expandiert.Once the brake pad or the bulge 6 in the variant of the Fig. 2 enters the region of the inlet ramp 8, the inlet ramp 8 ensures that the bulge 6 is increasingly compressed. Because the inlet ramp 8 leads not only the recess 5 in the closing direction S ahead, but forms in connection with the circumference 12 of the catch 1 during the closing process of the locking mechanism 1, 2 a quasi conically tapered slot, this causes the bulge 6 with the aid of Inlet ramp 8 is compressed as described and only when reaching the recess 5 in the stop 4 expands.

Bei der Variante nach den Figuren 1A und 1B kommt es nicht oder praktisch nicht zu einer Verformung der Auswölbung 6 aus dem elastomeren Kunststoff. Auch in diesem Fall greift die Auswölbung 6 in der Hauptraststellung des Gesperres 1, 2 entsprechend der Funktionsdarstellung in der Fig. 1B in die Ausnehmung 5 ein, und zwar vollständig oder nahezu vollständig.In the variant of the Figures 1A and 1B Does it not or practically not to a deformation of the bulge 6 of the elastomeric plastic. Also in this case, the bulge 6 engages in the main locking position of the locking mechanism 1, 2 according to the functional representation in the Fig. 1B in the recess 5, and that completely or almost completely.

Dabei erkennt man ergänzend anhand einer vergleichenden Betrachtung der Figuren 1A und 1B, dass die Auswölbung 6 lösbar an die Drehfalle 1 angeschlossen ist Grundsätzlich kann auch die Sperrklinke 2 mit einer lösbar angeschlossenen Auswölbung 6 ausgerüstet werden, was allerdings nicht dargestellt ist.It can be seen in addition by a comparative analysis of the Figures 1A and 1B that the bulge 6 is detachably connected to the rotary latch 1 Basically, the pawl 2 can be equipped with a detachably connected bulge 6, which, however, is not shown.

Im Ausführungsbeispiel handelt es sich bei der Auswölbung 6 um eine Kunststoffnase 6 bzw, den bereits beschriebenen Bremsklotz 6. Die Auswölbung 6 bzw. Kunststoffnase ist mit Hilfe einer Steckverbindung 14, 15 an die Drehfalle 1 angeschlossen. Die Steckverbindung 14, 15 setzt sich im Beispielfall aus einer kreisbogenförmigen Stecknase 14 und einer komplementären kreisbogenförmigen Steckausnehmung 15 zusammen Anstelle der Steckverbindung 14, 15 kann auch eine Rastverbindung, eine Schraubverbindung oder eine andere lösbare Verbindung zwischen der Auswölbung 6 und der Drehfalle 1 bzw. der Sperrklinke 2 realisiert werden.In the exemplary embodiment, the bulge 6 is a plastic nose 6 or the brake pad 6 already described. The bulge 6 or plastic nose is connected to the rotary catch 1 with the aid of a plug connection 14, 15. The connector 14, 15 is in the example of a circular arc-shaped plug 14 and a complementary circular arc-shaped plug-in recess 15 together Instead of the plug connection 14, 15 can also be a latching connection, a screw or other releasable connection between the bulge 6 and the catch 1 and the pawl 2 are realized.

Alternativ hierzu kann die Auswölbung 6 aber auch einstückig mit der Drehfalle 1 und / oder der Sperrklinke 2 ausgebildet sein. Das ist im Ausführungsbeispiel nach der Fig. 2 dargestellt, wo die Auswölbung 6 einen Bestandteil der Kunststoffummantelung 7 darstellt oder darstellen kann.Alternatively, the bulge 6 but also be integrally formed with the rotary latch 1 and / or the pawl 2. This is in the embodiment of the Fig. 2 represented where the bulge 6 is a part of the plastic sheath 7 or can represent.

In jedem Fall sind die Ausnehmung 5 einerseits und die Auswölbung bzw. der Bremsklotz 6 andererseits von ihrer Gestaltung und Ausdehnung her aneinander angepasst. Dadurch wird die Drehfalle 1 in der Hauptraststellung des Gesperres 1, 2 gleichsam gegenüber dem Gehäuse 3 bzw dem Kunststoffgehäusedeckel 3 verrastet. Denn in der Hauptraststellung fungieren die Auswölbung 6 und die Ausnehmung 5 wie eine Rastung mit Rastnocken 6 und Rastausnehmung 5. Dadurch werden etwaige Schwenk- oder Schwingbewegungen der Drehfalle 1 um ihre Achse 9 wirksam unterdrückt Auf diese Weise wird im Rahmen der Erfindung das im Stand der Technik beobachtete Prellen zwischen der Drehfalle 1 und der Sperrklinke 2 nicht (mehr) beobachtet.In any case, the recess 5 on the one hand and the bulge or the brake pad 6 on the other hand are adapted to one another by their design and expansion. As a result, the catch 1 is latched in the main locking position of the locking mechanism 1, 2 as it were opposite the housing 3 or the plastic housing cover 3. Because in the main locking position act the bulge 6 and the recess 5 as a detent with locking cams 6 and 5 Rastausnehmung. As a result any pivoting or swinging movements of the catch 1 are effectively suppressed about its axis 9 In this way, in the context of the invention in the state of Technique observed bouncing between the catch 1 and the pawl 2 not observed (more).

Claims (9)

  1. Motor vehicle door latch, with
    • at least one locking mechanism (1, 2) having as essential elements a catch (1) and a pawl (2),
    • a bulge (6) made of plastic on the catch (1) and/or the pawl (2),
    • st least one stop (4) for the locking mechanism (1, 2) integral with the housing, which has a recess (5) for the bulge (6) and interacts with the bulge (6),
    characterized in that
    • the bulge (6) and the stop (4) having the recess (4) are made of different plastics.
  2. Motor vehicle door latch according to claim 1, characterized in that
    • the bulge (6) is formed as a soft component and the stop (4) is formed as a hard component.
  3. Motor vehicle door latch according to claim 2, characterized in that
    • the hard component has a Shore-D hardness of 40 to 80 or from 50 to 65.
  4. Motor vehicle door latch according to claim 2 or 3, characterized in that
    • the soft component has a Shore A hardness of less than 80 or of less than 70 or of less than 60.
  5. Motor vehicle door latch according to one of the claims 1 to 4, characterized in that
    • the bulge (6) is detachably connected to the catch (1) and/or the pawl (2).
  6. Motor vehicle door latch according to one of the claims 1 to 5, characterized in that
    • the bulge (6) is formed as a plastic nose (6).
  7. Motor vehicle door latch according to one of the claims 1 to 6, characterized in that
    • the bulge (6) is connected to the catch (1) and/or the pawl (2) by means of a push-in connection (14, 15) or a ratchet connection or a screw connection.
  8. Motor vehicle door latch according to one of the claims 1 to 7, characterized in that
    • the bulge (6) is formed as a single component with the catch (1) and/or the pawl (2).
  9. Procedure to produce a motor vehicle door latch, with
    • at least a locking mechanism (1, 2) having as essential components a catch (1) and a pawl (2),
    • an bulge (6) made of plastic on the catch (1) and/or the pawl (2),
    • at least one stop (4) for the locking mechanism (1, 2) integral with the housing, which has a recess (5) for th bulge (6) and interacts with the bulge (6),
    characterized in that
    • the bulge (6) and the stop (4) having the recess (4) are made of different plastics.
EP14806167.4A 2013-11-30 2014-10-02 Motor vehicle door lock Active EP3074581B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013017960.2A DE102013017960A1 (en) 2013-11-30 2013-11-30 Motor vehicle door lock
PCT/DE2014/100348 WO2015078441A1 (en) 2013-11-30 2014-10-02 Motor vehicle door lock

Publications (2)

Publication Number Publication Date
EP3074581A1 EP3074581A1 (en) 2016-10-05
EP3074581B1 true EP3074581B1 (en) 2018-05-16

Family

ID=52003531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14806167.4A Active EP3074581B1 (en) 2013-11-30 2014-10-02 Motor vehicle door lock

Country Status (5)

Country Link
US (1) US20160376817A1 (en)
EP (1) EP3074581B1 (en)
CN (1) CN105793505A (en)
DE (1) DE102013017960A1 (en)
WO (1) WO2015078441A1 (en)

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CN109557982A (en) * 2018-11-28 2019-04-02 郑州云海信息技术有限公司 A kind of Rotary rod type upper cover unlock modular structure
DE102019107229A1 (en) * 2019-03-21 2020-09-24 Kiekert Aktiengesellschaft Door lock, in particular motor vehicle door lock
DE102023112430A1 (en) 2023-05-11 2024-11-14 Kiekert Aktiengesellschaft lock for a motor vehicle
DE102023112431A1 (en) 2023-05-11 2024-11-14 Kiekert Aktiengesellschaft lock for a motor vehicle

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Also Published As

Publication number Publication date
CN105793505A (en) 2016-07-20
EP3074581A1 (en) 2016-10-05
WO2015078441A1 (en) 2015-06-04
US20160376817A1 (en) 2016-12-29
DE102013017960A1 (en) 2015-06-03

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