EP2931998A2 - Lock for a motor vehicle door - Google Patents
Lock for a motor vehicle doorInfo
- Publication number
- EP2931998A2 EP2931998A2 EP13840156.7A EP13840156A EP2931998A2 EP 2931998 A2 EP2931998 A2 EP 2931998A2 EP 13840156 A EP13840156 A EP 13840156A EP 2931998 A2 EP2931998 A2 EP 2931998A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor vehicle
- vehicle door
- door lock
- lock according
- slide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- E05B85/22—Rectilinearly moving bolts
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
- E05B81/04—Electrical
- E05B81/06—Electrical using rotary motors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
- E05B81/16—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on locking elements for locking or unlocking action
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
- E05B81/26—Output elements
- E05B81/28—Linearly reciprocating elements
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
- E05B81/32—Details of the actuator transmission
- E05B81/34—Details of the actuator transmission of geared transmissions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/096—Sliding
- Y10T292/1014—Operating means
- Y10T292/102—Lever
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/096—Sliding
- Y10T292/1014—Operating means
- Y10T292/1021—Motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/08—Bolts
- Y10T292/1043—Swinging
- Y10T292/1075—Operating means
- Y10T292/1082—Motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/306—Gear
- Y10T292/307—Sliding catch
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T292/00—Closure fasteners
- Y10T292/306—Gear
- Y10T292/308—Swinging catch
Definitions
- the invention relates to a motor vehicle door lock, with a locking mechanism, further comprising a locking mechanism acting on the locking mechanism, and with a drive unit for at least one lever of the actuating lever mechanism, wherein the drive unit has at least one motor and a slider acted upon by the motor.
- the acted upon by the drive unit lever of the actuating lever mechanism is often a locking lever and in particular central locking lever.
- Such locking levers or central locking levers are usually pivoted with the aid of an eccentric control pin, which engages in an associated fork recess of the central locking lever (cf., for example, DE 102 40 003 A1).
- a motor-closing and opening aid for a motor vehicle door is provided.
- This has a first output element, which acts as a closing aid and pivots the catch as part of the locking mechanism from its Vorrastlage further into a Hauptrastlage.
- a second output element acts as an opening aid and lifts the associated pawl out of the catch. In this way, the released catch can turn back due to a spring load in its open position.
- Both output elements are arranged on a common output gear. When rotating the output gear in one direction, the first output element is effective, whereas the second output element is ineffective and vice versa.
- the acting as an opening aid second output element is designed as a longitudinally movable slide.
- a door safety device for motor vehicles is described. This is arranged directly in the region of a locking bolt of motor vehicle doors and can be controlled by an electrical pulse.
- an electric motor is provided in detail in a housing, wherein the electric motor one or more locking bolts are assigned.
- the locking bolt has a toothed rack part, which meshes with a gear wheel acted upon by the engine. In this way, the locking bolt can be moved linearly out of the housing.
- the invention is based on the technical problem of further developing a motor vehicle door lock of the structure described at the beginning in such a way that, with perfect functionality, the production costs are simultaneously reduced.
- a generic motor vehicle door lock in the context of the invention is characterized in that the slide has a receptacle for at least one output shaft of the motor.
- the receptacle receives the output shaft in question at the head end.
- the receptacle radially supports the output shaft. This is of particular importance insofar as the slider is usually designed as a rack assembly and engages the output shaft of the motor with a driven pinion in a toothing of the slider or the rack assembly.
- the output shaft of the motor is supported radially in the receptacle of the slide.
- the output shaft at occurring forces evades radially relative to the slide.
- the output shaft is properly supported, held and guided on the head side in the recording.
- the output pinion gear arranged typically on the output shaft after a head accommodated in the receptacle generally engages perfectly and smoothly in the toothing of the slide.
- the output pinion and / or the slider can be manufactured with greater tolerance and / or lower rigidity than before.
- This not only results in cost advantages, but is at the same time opposite to the weight of the motor vehicle door lock according to the invention reduced previous embodiments.
- Such a weight reduction is particularly advantageous against the background of increasing vehicle weights.
- in the slide receptacle for the output shaft of the motor ensures that the center distance or radial distance of the output shaft remains virtually constant compared to the slide. That is, the output pinion can - in contrast to the prior art - against the teeth in which engages the output pinion, radially no longer dodge (more).
- the recording is a slot recording.
- the slot recording has a certain predetermined axial length. This axial length ultimately dictates the travel of the slider. In fact, the slide moves predominantly linear compared to the engine. Due to the fact that the output shaft engages with its head into the receptacle or oblong hole receptacle, the axial extension of this oblong receptacle ultimately predetermines the linear movement of the slide.
- the slot recording is equipped with a matched to a diameter of the output shaft clear width. This adjustment rule ensures that the output shaft is radially supported in the receptacle with its head as described.
- the slider is generally formed in cross-section substantially L-shaped.
- the two L-legs defined in this way are, on the one hand, a drive leg and, on the other hand, a guide leg.
- the drive leg is equipped on the underside with the toothing of the slider designed as a rack assembly. In the toothing engages the output pinion.
- the guide leg on the front side of the receptacle for the output shaft.
- the output pinion fills in cross-section substantially the space between the two L-legs. In this way, the output pinion is typically found protected in the space between the two L-legs below the drive leg.
- the drive unit specially designed in the context of the invention can generally work on any lever of the actuating lever mechanism for its adjustment.
- the slider works on a locking lever and / or a clutch lever as part of the operating lever mechanism for its adjustment.
- the drive unit operating on a locking lever transfers the locking lever and consequently the entire motor vehicle door lock into the positions "locked” or "unlocked”.
- the drive unit can also act on a clutch lever which optionally interrupts or closes the actuating lever mechanism mechanically.
- An interruption of the operating lever mechanism typically corresponds to the state "locked” and that a continuous mechanical connection of, for example, a handle is interrupted until the locking.
- the state "unlocked” means that with the help of the drive unit, the clutch lever closes the operating lever mechanism, so that the acted upon handle can open the locking mechanism.
- Fig. 1 is a perspective view of a drive unit for a motor vehicle door lock according to the invention
- Fig. 2 is a side view of the article of FIG. 1 partly in section and
- FIG. 3 the motor vehicle door lock according to the invention with the drive unit according to FIGS. 1 and 2 fragmentary.
- a motor vehicle door lock is shown, which is equipped as usual with a locking mechanism, which is not shown in the embodiment and is generally located or arranged in a plane below the plane shown in Fig. 3.
- a release lever 1 which ensures or can ensure that a pawl is lifted from a catch as respective components of the locking mechanism, operates on the locking mechanism.
- Fig. 3 can be seen beyond a locking lever 2, which can be pivoted by means of a drive unit 3, 4.
- a motor 3 of the drive unit 3, 4 it is only necessary for a motor 3 of the drive unit 3, 4 to act on a slide 4 acted upon by the motor 3-starting from the functional position in FIG. 3-such that the slide 4 performs an upward movement.
- the position "unlocked”, not shown, corresponds to the fact that the slider 4 has been moved “upwards” in comparison to its functional position according to FIG. 3 and releases the locking lever 2. This can go into its "unlocked” position and overall ensures that a continuous mechanical connection is observed from the handle on the release lever 1 to the locking mechanism. As a result, an application of the handle is converted directly into a locking opening. That's the usual functionality. 1 and 2, the detailed structure of the drive unit 3, 4 will now be explained in more detail.
- the engine 3 is an electric motor.
- the motor 3 acts on the slide 4, which as a result performs linear movements corresponding to the double-arrow illustration in FIG.
- an output shaft 5 of the motor 3 is initially equipped with an output pinion 6, which in turn engages a toothing 7 of the slider 4.
- the slider 4 is a rack and pinion arrangement.
- the slide 4 is equipped with a receptacle 8 for the output shaft 5 of the motor 3.
- the receptacle 8 picks up the output shaft 5 on the head side or plunges a head 5a of the output shaft 5 into the respective receptacle 8.
- the head 5a of the output shaft 5 is accordingly a cylinder section.
- This cylinder section is received in the U-shaped design in the receptacle 8 and radially supported. That is, any radial forces R acting on the output pinion 6 and / or the slider 4 and indicated in FIG. 1 do not (more) cause the radial distance between the output shaft 5 and the toothing 7 or the slider 4 changed. Rather, it is ensured that the output pinion 6 perfectly meshes with the teeth 7 even with such occurring radial forces R.
- the design is such that the output pinion 6 is arranged following the head 5a on the output shaft 5 of the motor 3 in the direction of the motor 3.
- the head 5a of the output shaft 5 engages in the receptacle 8 in the slide 4 a.
- the receptacle 8 is presently designed as a slot recording, as can be seen in a comparison of FIGS. 2 and 3.
- the receptacle or elongated hole receiving an axial length L, which defines an associated travel of the slider 4, which also has the length L (see Fig .. 3).
- the slot recording or recording 8 is equipped with a clear width W, which is adapted to a diameter of the output shaft 5. This can be seen from the cross-sectional view in FIG. 2.
- the already described radial Abstützung the output shaft 5 is achieved and at the same time set the travel of the length L of the slider 4 and limited.
- This increases the reliability.
- the circumstance contributes to the fact that the slide 4 is formed in cross-section substantially L-shaped.
- the drive leg 4a has on the underside the toothing 7, in which the output pinion 6 engages.
- the guide leg 4b is equipped on the front side with the receptacle or elongated slot receptacle 8 for the output shaft 5 and the head 5a of the output shaft 5, respectively.
- the cross-sectionally L-shaped design of the slider 4 defines a space between the two L-legs 4a, 4b.
- the output pinion 6 fills this space between the two L-legs 4a, 4b substantially and is thus protected as it were arranged below the slider 4.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Kraftfahrzeugtürschloss Motor vehicle door lock
Beschreibung: Description:
Die Erfindung betrifft ein Kraftfahrzeugtürschloss, mit einem Gesperre, ferner mit einem das Gesperre beaufschlagenden Betätigungshebelwerk, und mit einer Antriebseinheit für wenigstens einen Hebel des Betätigungshebelwerkes, wobei die Antriebseinheit zumindest einen Motor und einen von dem Motor beaufschlagten Schieber aufweist. The invention relates to a motor vehicle door lock, with a locking mechanism, further comprising a locking mechanism acting on the locking mechanism, and with a drive unit for at least one lever of the actuating lever mechanism, wherein the drive unit has at least one motor and a slider acted upon by the motor.
Bei dem von der Antriebseinheit beaufschlagten Hebel des Betätigungshebelwerkes handelt es sich oftmals um einen Verriegelungshebel und insbesondere Zentralverriegelungshebel. Solche Verriegelungshebel bzw. Zentralverriege- lungshebel werden meistens mit Hilfe eines exzentrischen Steuerzapfens verschwenkt, welcher in eine zugehörige Gabelausnehmung des Zentralverriege- lungshebels eingreift (vgl. beispielsweise DE 102 40 003 A1). The acted upon by the drive unit lever of the actuating lever mechanism is often a locking lever and in particular central locking lever. Such locking levers or central locking levers are usually pivoted with the aid of an eccentric control pin, which engages in an associated fork recess of the central locking lever (cf., for example, DE 102 40 003 A1).
Bei einem gattungsgemäßen Kraftfahrzeugtürschloss entsprechend der DE 10 2004 011 798 B3 ist eine motorische Zuzieh- und Öffnungshilfe für eine Kraftfahrzeugtür vorgesehen. Diese verfügt über ein erstes Abtriebselement, welches als Zuziehhilfe wirkt und die Drehfalle als Bestandteil des Gesperres aus ihrer Vorrastlage weiter in eine Hauptrastlage verschwenkt. Ein zweites Abtriebselement fungiert als Öffnungshilfe und hebt die zugehörige Sperrklinke aus der Drehfalle heraus. Auf diese Weise kann die freigegebene Drehfalle aufgrund einer Federbelastung in ihre Offenlage zurückdrehen. In a generic motor vehicle door lock according to DE 10 2004 011 798 B3, a motor-closing and opening aid for a motor vehicle door is provided. This has a first output element, which acts as a closing aid and pivots the catch as part of the locking mechanism from its Vorrastlage further into a Hauptrastlage. A second output element acts as an opening aid and lifts the associated pawl out of the catch. In this way, the released catch can turn back due to a spring load in its open position.
Beide Abtriebselemente sind an einem gemeinsamen Abtriebsrad angeordnet. Beim Drehen des Abtriebsrades in der einen Laufrichtung ist das erste Abtriebs- element wirksam, wohingegen das zweite Abtriebselement unwirksam ist und umgekehrt. Das als Öffnungshilfe fungierende zweite Abtriebselement ist als längsbeweglicher Schieber ausgebildet. Im weiteren Stand der Technik nach der DE 196 10 708 A1 wird eine Türsicherheitseinrichtung für Kraftfahrzeuge beschrieben. Diese ist unmittelbar im Bereich eines Schließbolzens von Kraftfahrzeugtüren angeordnet und kann über einen elektrischen Impuls angesteuert werden. Zu diesem Zweck ist im Detail in einem Gehäuse ein Elektromotor vorgesehen, wobei dem Elektromotor ein oder mehrere Verschließbolzen zugeordnet sind. Der Verschließbolzen verfügt über ein Zahnstangenteil, welches mit einem vom Motor beaufschlagten Zahnrad kämmt. Auf diese Weise kann der Verschließbolzen linear aus dem Gehäuse bewegt werden. Both output elements are arranged on a common output gear. When rotating the output gear in one direction, the first output element is effective, whereas the second output element is ineffective and vice versa. The acting as an opening aid second output element is designed as a longitudinally movable slide. In further state of the art according to DE 196 10 708 A1, a door safety device for motor vehicles is described. This is arranged directly in the region of a locking bolt of motor vehicle doors and can be controlled by an electrical pulse. For this purpose, an electric motor is provided in detail in a housing, wherein the electric motor one or more locking bolts are assigned. The locking bolt has a toothed rack part, which meshes with a gear wheel acted upon by the engine. In this way, the locking bolt can be moved linearly out of the housing.
Bei Antriebseinheiten mit zumindest einem Motor und einem von dem Motor beaufschlagten Schieber der zuvor beschriebenen Auslegung, insbesondere bei einer Ausführungsform mit einer Zahnstange und hierin eingreifendem Ritzel besteht das Problem, dass auf das Ritzel und den Schieber bzw. die Zahnstange Radialkräfte wirken oder wirken können. Solche Radialkräfte treten beispielsweise dann auf, wenn der Schieber in seiner Bewegung (durch Reibung) gehindert ist bzw. gegen einen Anschlag anläuft. Das kann insgesamt dazu führen, dass das Ritzel nicht mehr vollständig in die Zähne der Zahnstange eingreift. Daraus resultieren je nach Belastung bzw. Anzahl der Be- nutzungszyklen gegebenenfalls Beschädigungen an den Zahnflanken oder es kann sogar zu einem Zahnbruch kommen. Als Folge hiervon sind Fehlfunktionen der Antriebseinheit und folglich des gesamten Kraftfahrzeugtürschlosses zu befürchten. In Anbetracht der geschilderten Probleme versucht man aktuell in der Praxis, die Ritzel und Zahnstangen mit möglichst geringen Toleranzen zu fertigen und in Eingriff zueinander zu bringen. Außerdem wird versucht, die Steifigkeit der miteinander in Eingriff befindlichen Elemente zu erhöhen, um die beschriebene Verformung durch die sich teilweise aufbauenden Radialkräfte größtenteils oder zumindest größtenteils auszuschließen. Daraus resultieren erhöhte Fertigungskosten, welche in Anbetracht des enormen Kostendrucks bei der Herstellung von Kraftfahrzeugzubehörteilen nachteilig ist. Hier will die Erfindung insgesamt Abhilfe schaffen. In drive units with at least one motor and a slider acted upon by the motor of the previously described design, in particular in an embodiment with a rack and engaging pinion there is the problem that act on the pinion and the slider or the rack radial forces or can act. Such radial forces occur, for example, when the slide is prevented in its movement (by friction) or starts against a stop. This can lead to the overall result that the pinion is no longer fully engaged in the teeth of the rack. Depending on the load or the number of cycles of use, this may result in damage to the tooth flanks or even a tooth fracture. As a result, malfunctions of the drive unit and consequently of the entire motor vehicle door lock are to be feared. In view of the problems described currently trying in practice to manufacture the pinions and racks with the lowest possible tolerances and bring them into engagement with each other. In addition, an attempt is made to increase the rigidity of the elements engaged with each other in order to largely or at least largely exclude the deformation described by the partially constituting radial forces. This results in increased manufacturing costs, which, given the enormous cost pressure in the production of Motor vehicle accessories is disadvantageous. Here, the invention aims to provide a total remedy.
Der Erfindung liegt das technische Problem zugrunde, ein Kraftfahrzeugtür- schloss des eingangs beschriebenen Aufbaus so weiter zu entwickeln, dass bei einwandfreier Funktionalität zugleich die Fertigungskosten verringert sind. The invention is based on the technical problem of further developing a motor vehicle door lock of the structure described at the beginning in such a way that, with perfect functionality, the production costs are simultaneously reduced.
Zur Lösung dieser technischen Problemstellung ist ein gattungsgemäßes Kraft- fahrzeugtürschloss im Rahmen der Erfindung dadurch gekennzeichnet, dass der Schieber eine Aufnahme für wenigstens einer Abtriebswelle des Motors aufweist. To solve this technical problem, a generic motor vehicle door lock in the context of the invention is characterized in that the slide has a receptacle for at least one output shaft of the motor.
Im Allgemeinen nimmt die Aufnahme die fragliche Abtriebswelle kopfseitig auf. Außerdem stützt die Aufnahme die Abtriebswelle radial ab. Das ist insofern von besonderer Bedeutung, als der Schieber meistens als Zahnstangenanordnung ausgebildet ist und die Abtriebswelle des Motors mit einem Abtriebsritzel in eine Verzahnung des Schiebers bzw. der Zahnstangenanordnung eingreift. In general, the receptacle receives the output shaft in question at the head end. In addition, the receptacle radially supports the output shaft. This is of particular importance insofar as the slider is usually designed as a rack assembly and engages the output shaft of the motor with a driven pinion in a toothing of the slider or the rack assembly.
Auf diese Weise stützt sich die Abtriebswelle des Motors radial in der Aufnahme des Schiebers ab. Es besteht also im Rahmen der Erfindung praktisch keine Gefahr mehr, dass die Abtriebswelle bei auftretenden Kräften radial gegenüber dem Schieber ausweicht. Vielmehr wird die Abtriebswelle kopfseitig in der Aufnahme einwandfrei abgestützt, gehalten und geführt. Dadurch greift das typischerweise im Anschluss an einen in der Aufnahme aufgenommenen Kopf auf der Abtriebswelle angeordnete Abtriebsritzel durchgängig und einwandfrei in die Verzahnung des Schiebers ein. In this way, the output shaft of the motor is supported radially in the receptacle of the slide. Thus, there is virtually no danger in the context of the invention that the output shaft at occurring forces evades radially relative to the slide. Rather, the output shaft is properly supported, held and guided on the head side in the recording. As a result, the output pinion gear arranged typically on the output shaft after a head accommodated in the receptacle generally engages perfectly and smoothly in the toothing of the slide.
Dadurch können das Abtriebsritzel und/oder der Schieber mit jeweils größerer Toleranz und/oder geringerer Steifigkeit als bisher hergestellt werden. Auf diese Weise ist es beispielsweise möglich, den Schieber aus Kunststoff und/oder Metall zu fertigen. Dadurch resultieren nicht nur Kostenvorteile, sondern wird zugleich das Gewicht des erfindungsgemäßen Kraftfahrzeugtürschlosses gegenüber bisherigen Ausführungsformen reduziert. Eine solche Gewichtsreduktion ist vor dem Hintergrund wachsender Fahrzeuggewichte besonders vorteilhaft. Immer sorgt die erfindungsgemäß im Schieber realisierte Aufnahme für die Abtriebswelle des Motors dafür, dass der Achsabstand bzw. Radialabstand der Abtriebswelle im Vergleich zum Schieber praktisch konstant bleibt. Das heißt, das Abtriebsritzel kann - im Gegensatz zum Stand der Technik - gegenüber der Verzahnung, in welche das Abtriebsritzel eingreift, radial nicht (mehr) ausweichen. Hierin sind die wesentlichen Vorteile zu sehen. Nach vorteilhafter Ausgestaltung handelt es sich bei der Aufnahme um eine Langlochaufnahme. Die Langlochaufnahme verfügt über eine bestimmte vorgegebene axiale Länge. Diese axiale Länge gibt letztlich den Stellweg des Schiebers vor. Tatsächlich bewegt sich der Schieber überwiegend linear im Vergleich zum Motor. Dadurch, dass die Abtriebswelle mit ihrem Kopf in die Aufnahme bzw. Langlochaufnahme eingreift, gibt die axiale Erstreckung dieser Langlochaufnahme letztlich die Linearbewegung des Schiebers vor. Darüber hinaus ist die Langlochaufnahme mit einer an einen Durchmesser der Abtriebswelle angepassten lichten Weite ausgerüstet. Diese Anpassungsregel stellt sicher, dass die Abtriebswelle wie beschrieben in der Aufnahme mit ihrem Kopf radial abgestützt wird. As a result, the output pinion and / or the slider can be manufactured with greater tolerance and / or lower rigidity than before. In this way it is possible, for example, to manufacture the slide made of plastic and / or metal. This not only results in cost advantages, but is at the same time opposite to the weight of the motor vehicle door lock according to the invention reduced previous embodiments. Such a weight reduction is particularly advantageous against the background of increasing vehicle weights. Always realized according to the invention in the slide receptacle for the output shaft of the motor ensures that the center distance or radial distance of the output shaft remains virtually constant compared to the slide. That is, the output pinion can - in contrast to the prior art - against the teeth in which engages the output pinion, radially no longer dodge (more). Here are the main benefits. According to an advantageous embodiment, the recording is a slot recording. The slot recording has a certain predetermined axial length. This axial length ultimately dictates the travel of the slider. In fact, the slide moves predominantly linear compared to the engine. Due to the fact that the output shaft engages with its head into the receptacle or oblong hole receptacle, the axial extension of this oblong receptacle ultimately predetermines the linear movement of the slide. In addition, the slot recording is equipped with a matched to a diameter of the output shaft clear width. This adjustment rule ensures that the output shaft is radially supported in the receptacle with its head as described.
Der Schieber ist im Allgemeinen im Querschnitt im Wesentlichen L-förmig ausgebildet. Bei den beiden auf diese Weise definierten L-Schenkeln handelt es sich einerseits um einen Antriebsschenkel und andererseits einen Führungsschenkel. Der Antriebsschenkel ist unterseitig mit der Verzahnung des als Zahnstangenanordnung ausgebildeten Schiebers ausgerüstet. In die Verzahnung greift das Abtriebsritzel ein. Demgegenüber weist der Führungsschenkel frontseitig die Aufnahme für die Abtriebswelle auf. Das Abtriebsritzel füllt im Querschnitt gesehen im Wesentlichen den Raum zwischen den beiden L- Schenkeln aus. Auf diese Weise findet sich das Abtriebsritzel typischerweise geschützt im Raum zwischen den beiden L-Schenkeln unterhalb des Antriebsschenkels. The slider is generally formed in cross-section substantially L-shaped. The two L-legs defined in this way are, on the one hand, a drive leg and, on the other hand, a guide leg. The drive leg is equipped on the underside with the toothing of the slider designed as a rack assembly. In the toothing engages the output pinion. In contrast, the guide leg on the front side of the receptacle for the output shaft. The output pinion fills in cross-section substantially the space between the two L-legs. In this way, the output pinion is typically found protected in the space between the two L-legs below the drive leg.
Diese Anordnung steigert zugleich die Funktionssicherheit und schützt sowohl das Abtriebsritzel als auch die unterseitig des Antriebsschenkels vorgesehene Verzahnung vor etwaigen Beschädigungen oder Verschmutzungen. Das ist von besonderer Bedeutung vor dem Hintergrund, dass das Abtriebsritzel und/oder der Schieber aus Kunststoff gefertigt werden können. Die im Rahmen der Erfindung speziell ausgebildete Antriebseinheit kann generell auf jedweden Hebel des Betätigungshebelwerkes zu seiner Verstellung arbeiten. Im Allgemeinen hat es sich bewährt, wenn der Schieber auf einen Verriegelungshebel und/oder einen Kupplungshebel als Bestandteil des Betätigungshebelwerkes zu dessen Verstellung arbeitet. Beispielsweise ist es denkbar, dass die auf einen Verriegelungshebel arbeitende Antriebseinheit den Verriegelungshebel und folglich das gesamte Kraftfahrzeugtürschloss in die Positionen "verriegelt" oder "entriegelt" überführt. In vergleichbarer Art und Weise kann die Antriebseinheit aber auch auf einen Kupplungshebel einwirken, welcher das Betätigungshebelwerk wahlweise mechanisch unterbricht oder schließt. This arrangement also increases the reliability and protects both the output pinion and the underside of the drive leg provided teeth from any damage or dirt. This is of particular importance against the background that the output pinion and / or the slide can be made of plastic. The drive unit specially designed in the context of the invention can generally work on any lever of the actuating lever mechanism for its adjustment. In general, it has proven useful if the slider works on a locking lever and / or a clutch lever as part of the operating lever mechanism for its adjustment. For example, it is conceivable that the drive unit operating on a locking lever transfers the locking lever and consequently the entire motor vehicle door lock into the positions "locked" or "unlocked". In a comparable manner, however, the drive unit can also act on a clutch lever which optionally interrupts or closes the actuating lever mechanism mechanically.
Eine Unterbrechung des Betätigungshebelwerkes korrespondiert typischerweise zum Zustand "verriegelt" und dazu, dass eine durchgängige mechanische Verbindung von beispielsweise einer Handhabe bis zum Gesperre unterbrochen ist. Demgegenüber gehört der Zustand "entriegelt" dazu, dass mit Hilfe der Antriebseinheit der Kupplungshebel das Betätigungshebelwerk schließt, so dass die beaufschlagte Handhabe das Gesperre öffnen kann. An interruption of the operating lever mechanism typically corresponds to the state "locked" and that a continuous mechanical connection of, for example, a handle is interrupted until the locking. In contrast, the state "unlocked" means that with the help of the drive unit, the clutch lever closes the operating lever mechanism, so that the acted upon handle can open the locking mechanism.
Bei den beschriebenen Vorgehensweisen handelt es sich selbstverständlich nur um Beispielfälle. Entscheidend ist, dass die Abtriebswelle in der Aufnahme des Schiebers eine Führung erfährt und folglich gegenüber dem Schieber selbst bei auftretenden Kräften nicht (mehr) radial ausweichen kann. Dadurch ist ein durchgängig einwandfreier Eingriff des Abtriebsritzels in die Verzahnung des Schiebers gewährleistet, und zwar auch dann, wenn der Schieber und/oder das Abtriebsritzel eine im Vergleich zum Stand der Technik nicht so große Steifigkeit aufweisen. Auch etwaige Toleranzen zwischen dem Abtriebsritzel und der Verzahnung lassen sich beherrschen. Das alles führt zu deutlichen Kosteneinsparungen, und zwar bei gleichzeitig nach wie vor einwandfreier Funktionalität. Hierin sind die wesentlichen Vorteile zu sehen. Of course, the described procedures are only examples. It is crucial that the output shaft in the receptacle of the slide undergoes a guide and consequently can not (more) radially dodge towards the slide even when forces occur. This is one ensures consistently perfect engagement of the output pinion in the toothing of the slide, even if the slide and / or the output pinion have a not so high compared to the prior art stiffness. Also, any tolerances between the output pinion and the teeth can be controlled. All this leads to significant cost savings, while at the same time still flawless functionality. Here are the main benefits.
Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnungen näher erläutert; es zeigen: In the following the invention will be explained in more detail with reference to an exemplary embodiment representing drawings; show it:
Fig. 1 eine Antriebseinheit für ein erfindungsgemäßes Kraftfahrzeugtürschloss perspektivisch, Fig. 2 eine Seitenansicht auf den Gegenstand nach Fig. 1 teilweise im Schnitt und Fig. 1 is a perspective view of a drive unit for a motor vehicle door lock according to the invention, Fig. 2 is a side view of the article of FIG. 1 partly in section and
Fig. 3 das erfindungsgemäße Kraftfahrzeugtürschloss mit der Antriebseinheit nach den Fig. 1 und 2 ausschnittsweise. Fig. 3, the motor vehicle door lock according to the invention with the drive unit according to FIGS. 1 and 2 fragmentary.
In den Figuren ist ein Kraftfahrzeugtürschloss dargestellt, welches wie üblich mit einem Gesperre ausgerüstet ist, das im Ausführungsbeispiel nicht gezeigt wird und sich generell in einer Ebene unterhalb der in Fig. 3 dargestellten Ebene befindet bzw. angeordnet ist. Auf das Gesperre arbeitet vorliegend ein Auslösehebel 1 , welcher dafür sorgt oder sorgen kann, dass eine Sperrklinke von einer Drehfalle als jeweilige Bestandteile des Gesperres abgehoben wird. In der Fig. 3 erkennt man darüber hinaus noch einen Verriegelungshebel 2, welcher mit Hilfe einer Antriebseinheit 3, 4 verschwenkt werden kann. Dazu ist es lediglich erforderlich, dass ein Motor 3 der Antriebseinheit 3, 4 einen von dem Motor 3 beaufschlagten Schieber 4 - ausgehend von der Funktionsstellung in Fig. 3 "verriegelt" - derart beaufschlagt, dass der Schieber 4 eine Aufwärtsbewegung vollführt. Dadurch kommt der Schieber 4 vom Eingriff mit dem Verriegelungshebel 2 frei. In der in Fig. 3 dargestellten Position "verriegelt" ist der Auslösehebel 1 nicht in der Lage, das Gesperre zu öffnen. Eine mechanische Kopplung einer Handhabe an das dargestellte Betätigungshebelwerk mit dem Auslösehebel 1 und dem Verriegelungshebel 2 bis hin zum Gesperre ist unterbrochen. Sobald die Handhabe beaufschlagt wird, erfolgt ein Leerhub. In the figures, a motor vehicle door lock is shown, which is equipped as usual with a locking mechanism, which is not shown in the embodiment and is generally located or arranged in a plane below the plane shown in Fig. 3. In the present case, a release lever 1, which ensures or can ensure that a pawl is lifted from a catch as respective components of the locking mechanism, operates on the locking mechanism. In Fig. 3 can be seen beyond a locking lever 2, which can be pivoted by means of a drive unit 3, 4. For this purpose, it is only necessary for a motor 3 of the drive unit 3, 4 to act on a slide 4 acted upon by the motor 3-starting from the functional position in FIG. 3-such that the slide 4 performs an upward movement. As a result, the slider 4 is released from the engagement with the locking lever 2. In the position "locked" shown in Fig. 3, the release lever 1 is not able to open the locking mechanism. A mechanical coupling of a handle on the illustrated operating lever mechanism with the release lever 1 and the locking lever 2 to the locking is interrupted. As soon as the handle is acted upon, there is an idle stroke.
Demgegenüber korrespondiert die nicht dargestellte Position "entriegelt" dazu, dass der Schieber 4 im Vergleich zu seiner Funktionsstellung nach Fig. 3 "aufwärts" bewegt worden ist und den Verriegelungshebel 2 freigibt. Dieser kann in seine Position "entriegelt" übergehen und stellt insgesamt sicher, dass eine durchgängige mechanische Verbindung von der Handhabe über den Auslösehebel 1 bis hin zum Gesperre beobachtet wird. Dadurch wird eine Beaufschlagung der Handhabe unmittelbar in eine Gesperreöffnung umgesetzt. Das ist die übliche Funktionalität. Anhand der Fig. 1 und 2 wird nun der Detailaufbau der Antriebseinheit 3, 4 näher erläutert. Bei dem Motor 3 handelt es sich um einen Elektromotor. Der Motor 3 beaufschlagt den Schieber 4, welcher als Folge hiervon Linearbewegungen entsprechend der Doppelpfeildarstellung in der Fig. 3 vollführt. Bei solchen Bewegungen kann es dazu kommen, dass auf den Schieber 4 Radialkräfte R wirken, die durch entsprechende Pfeile in der Fig. 1 angedeutet sind. Um beim Auftreten solcher Radialkräfte R dennoch sicher zu stellen, dass der Motor 3 den Schieber 4 einwandfrei bewegen kann, ist zunächst einmal eine Abtriebswelle 5 des Motors 3 mit einem Abtriebsritzel 6 ausgerüstet, welches seinerseits in eine Verzahnung 7 des Schiebers 4 eingreift. Dadurch handelt es sich bei dem Schieber 4 um eine Zahnstangenanordnung. Von erfindungsgemäß besonderer Bedeutung ist nun die Tatsache, dass der Schieber 4 mit einer Aufnahme 8 für die Abtriebswelle 5 des Motors 3 ausgerüstet ist. Im Detail nimmt die Aufnahme 8 die Abtriebswelle 5 kopfseitig auf bzw. taucht ein Kopf 5a der Abtriebswelle 5 in die betreffende Aufnahme 8 ein. In contrast, the position "unlocked", not shown, corresponds to the fact that the slider 4 has been moved "upwards" in comparison to its functional position according to FIG. 3 and releases the locking lever 2. This can go into its "unlocked" position and overall ensures that a continuous mechanical connection is observed from the handle on the release lever 1 to the locking mechanism. As a result, an application of the handle is converted directly into a locking opening. That's the usual functionality. 1 and 2, the detailed structure of the drive unit 3, 4 will now be explained in more detail. The engine 3 is an electric motor. The motor 3 acts on the slide 4, which as a result performs linear movements corresponding to the double-arrow illustration in FIG. In such movements, it may happen that act on the slide 4 radial forces R, which are indicated by corresponding arrows in FIG. In order to ensure that such a radial forces R still occur, that the motor 3 can move the slider 4 properly, an output shaft 5 of the motor 3 is initially equipped with an output pinion 6, which in turn engages a toothing 7 of the slider 4. As a result, the slider 4 is a rack and pinion arrangement. Of particular importance according to the invention now is the fact that the slide 4 is equipped with a receptacle 8 for the output shaft 5 of the motor 3. In detail, the receptacle 8 picks up the output shaft 5 on the head side or plunges a head 5a of the output shaft 5 into the respective receptacle 8.
Da die Abtriebswelle 5 typischerweise zylindrisch bzw. als Zylinderstift ausgelegt ist, handelt es sich bei dem Kopf 5a der Abtriebswelle 5 demgemäß um einen Zylinderabschnitt. Dieser Zylinderabschnitt wird in der im Querschnitt U-förmig ausgelegten Aufnahme 8 aufgenommen und radial abgestützt. Das heißt, etwaige am Abtriebsritzel 6 und/oder dem Schieber 4 angreifende und in der Fig. 1 angedeutete Radialkräfte R führen im Rahmen der Erfindung nicht (mehr) dazu, dass sich der Radialabstand zwischen der Abtriebswelle 5 und der Verzahnung 7 bzw. dem Schieber 4 verändert. Vielmehr ist sichergestellt, dass das Abtriebsritzel 6 auch bei solchen auftretenden Radialkräften R einwandfrei mit der Verzahnung 7 kämmt. Since the output shaft 5 is typically cylindrical or designed as a cylindrical pin, the head 5a of the output shaft 5 is accordingly a cylinder section. This cylinder section is received in the U-shaped design in the receptacle 8 and radially supported. That is, any radial forces R acting on the output pinion 6 and / or the slider 4 and indicated in FIG. 1 do not (more) cause the radial distance between the output shaft 5 and the toothing 7 or the slider 4 changed. Rather, it is ensured that the output pinion 6 perfectly meshes with the teeth 7 even with such occurring radial forces R.
Insgesamt ist die Auslegung so getroffen, dass das Abtriebsritzel 6 im Anschluss an den Kopf 5a auf der Abtriebswelle 5 des Motors 3 in Richtung auf den Motor 3 angeordnet ist. Der Kopf 5a der Abtriebswelle 5 greift dagegen in die Aufnahme 8 im Schieber 4 ein. Die Aufnahme 8 ist vorliegend als Langlochaufnahme ausgebildet, wie man bei einem Vergleich der Fig. 2 und 3 erkennt. Außerdem verfügt die Aufnahme bzw. Langlochaufnahme über eine axiale Länge L, welche einen zugehörigen Stellweg des Schiebers 4 vorgibt, der ebenfalls die Länge L aufweist (vgl. Fig. 3). Darüber hinaus ist die Langlochaufnahme bzw. Aufnahme 8 mit einer lichten Weite W ausgerüstet, welche an einen Durchmesser der Abtriebswelle 5 angepasst ist. Das erkennt man anhand der Querschnittsdarstellung in Fig. 2. Overall, the design is such that the output pinion 6 is arranged following the head 5a on the output shaft 5 of the motor 3 in the direction of the motor 3. The head 5a of the output shaft 5, however, engages in the receptacle 8 in the slide 4 a. The receptacle 8 is presently designed as a slot recording, as can be seen in a comparison of FIGS. 2 and 3. In addition, the receptacle or elongated hole receiving an axial length L, which defines an associated travel of the slider 4, which also has the length L (see Fig .. 3). In addition, the slot recording or recording 8 is equipped with a clear width W, which is adapted to a diameter of the output shaft 5. This can be seen from the cross-sectional view in FIG. 2.
Dadurch wird die bereits beschriebene radiale AbStützung der Abtriebswelle 5 erreicht und zugleich der Stellweg der Länge L des Schiebers 4 vorgegeben und beschränkt. Das erhöht die Funktionssicherheit. Hierzu trägt ergänzend der Umstand bei, dass der Schieber 4 im Querschnitt im Wesentlichen L-förmig ausgebildet ist. Tatsächlich erkennt man einen Antriebsschenkel 4a und einen Führungsschenkel 4b. Der Antriebsschenkel 4a weist unterseitig die Verzahnung 7 auf, in welche das Abtriebsritzel 6 eingreift. Demgegenüber ist der Führungsschenkel 4b frontseitig mit der Aufnahme bzw. Langlochaufnahme 8 für die Abtriebswelle 5 respektive den Kopf 5a der Abtriebswelle 5 ausgerüstet. Die im Querschnitt L-förmige Gestaltung des Schiebers 4 definiert einen Raum zwischen den beiden L-Schenkeln 4a, 4b. Das Abtriebsritzel 6 füllt diesen Raum zwischen den beiden L-Schenkeln 4a, 4b im Wesentlichen aus und ist dadurch geschützt gleichsam unterhalb des Schiebers 4 angeordnet. Vergleichbares gilt für die Verzahnung 7, so dass Beschädigungen, Verschmutzung etc. der Verzahnung 7 wie auch des Abtriebsritzels 6 auf ein Minimum beschränkt sind. As a result, the already described radial Abstützung the output shaft 5 is achieved and at the same time set the travel of the length L of the slider 4 and limited. This increases the reliability. To this end, the circumstance contributes to the fact that the slide 4 is formed in cross-section substantially L-shaped. In fact, one recognizes a drive leg 4a and a guide leg 4b. The drive leg 4a has on the underside the toothing 7, in which the output pinion 6 engages. In contrast, the guide leg 4b is equipped on the front side with the receptacle or elongated slot receptacle 8 for the output shaft 5 and the head 5a of the output shaft 5, respectively. The cross-sectionally L-shaped design of the slider 4 defines a space between the two L-legs 4a, 4b. The output pinion 6 fills this space between the two L-legs 4a, 4b substantially and is thus protected as it were arranged below the slider 4. The same applies to the toothing 7, so that damage, contamination, etc. of the toothing 7 as well as the output pinion 6 are limited to a minimum.
Dadurch besteht die Möglichkeit, das Abtriebsritzel 6 und/oder den Schieber 4 insgesamt aus Kunststoff zu fertigen bzw. als Kunststoffspritzgussteil auszulegen. Prinzipiell ist es natürlich alternativ oder zusätzlich auch möglich, das Abtriebsritzel 6 und/oder den Schieber 4 aus Metall herzustellen, beispielsweise als Metalldruckgussbauteil. This makes it possible to manufacture the output gear 6 and / or the slide 4 in total made of plastic or designed as a plastic injection molded part. In principle, of course, alternatively or additionally, it is also possible to produce the output pinion 6 and / or the slide 4 from metal, for example as a metal die casting component.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202012012039.5U DE202012012039U1 (en) | 2012-12-15 | 2012-12-15 | Motor vehicle door lock |
| PCT/DE2013/000766 WO2014090212A2 (en) | 2012-12-15 | 2013-12-05 | Lock for a motor vehicle door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2931998A2 true EP2931998A2 (en) | 2015-10-21 |
| EP2931998B1 EP2931998B1 (en) | 2017-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13840156.7A Active EP2931998B1 (en) | 2012-12-15 | 2013-12-05 | Lock for a motor vehicle door |
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| US (1) | US9845624B2 (en) |
| EP (1) | EP2931998B1 (en) |
| KR (1) | KR102054036B1 (en) |
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| RU (1) | RU2652580C2 (en) |
| WO (1) | WO2014090212A2 (en) |
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| DE102009020488A1 (en) * | 2008-08-22 | 2010-02-25 | Kiekert Ag | Drive unit with blocked functional element for central locking |
-
2012
- 2012-12-15 DE DE202012012039.5U patent/DE202012012039U1/en not_active Expired - Lifetime
-
2013
- 2013-12-05 CN CN201380072896.8A patent/CN104995366B/en active Active
- 2013-12-05 WO PCT/DE2013/000766 patent/WO2014090212A2/en not_active Ceased
- 2013-12-05 EP EP13840156.7A patent/EP2931998B1/en active Active
- 2013-12-05 RU RU2015127884A patent/RU2652580C2/en not_active IP Right Cessation
- 2013-12-05 CA CA2902976A patent/CA2902976A1/en not_active Abandoned
- 2013-12-05 US US14/655,075 patent/US9845624B2/en active Active
- 2013-12-05 KR KR1020157018906A patent/KR102054036B1/en active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2014090212A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014090212A2 (en) | 2014-06-19 |
| US20150368938A1 (en) | 2015-12-24 |
| CA2902976A1 (en) | 2014-06-19 |
| RU2015127884A (en) | 2017-01-12 |
| DE202012012039U1 (en) | 2014-03-19 |
| RU2652580C2 (en) | 2018-04-26 |
| WO2014090212A3 (en) | 2014-10-09 |
| CN104995366A (en) | 2015-10-21 |
| CN104995366B (en) | 2018-05-29 |
| EP2931998B1 (en) | 2017-06-21 |
| KR102054036B1 (en) | 2019-12-09 |
| US9845624B2 (en) | 2017-12-19 |
| KR20150096722A (en) | 2015-08-25 |
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