EP3847328B1 - Drive unit for motor-vehicle applications - Google Patents

Drive unit for motor-vehicle applications Download PDF

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Publication number
EP3847328B1
EP3847328B1 EP19765165.6A EP19765165A EP3847328B1 EP 3847328 B1 EP3847328 B1 EP 3847328B1 EP 19765165 A EP19765165 A EP 19765165A EP 3847328 B1 EP3847328 B1 EP 3847328B1
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EP
European Patent Office
Prior art keywords
drive
manipulation
drive unit
manipulation element
motor vehicle
Prior art date
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Active
Application number
EP19765165.6A
Other languages
German (de)
French (fr)
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EP3847328A1 (en
Inventor
Michael Scholz
Holger Schiffer
Ömer INAN
Peter Szegeny
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kiekert AG
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Kiekert AG
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Publication of EP3847328A1 publication Critical patent/EP3847328A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/90—Manual override in case of power failure
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/16—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on locking elements for locking or unlocking action

Definitions

  • the invention relates to a drive unit for automotive applications, in particular an electromotive opening drive unit as part of a motor vehicle lock, preferably a motor vehicle door lock, with an electromotive drive for acting on an actuating element, and with a manually actuable manipulation element, which at least in the engaged position with the drive its reversing is set up.
  • the drive unit can be a power window drive, seat or mirror adjustment, a sliding door drive, a tank locking and unlocking mechanism, a tailgate drive, but also a drive unit that can be used, for example, to charge a charging plug in an electric or hybrid vehicle locked to a charging socket.
  • the control element has different characteristics.
  • the actuating element in a window lifter drive may be a cable pull.
  • the adjusting element for a seat or mirror adjustment can be designed as an adjusting pin. If locking and unlocking of a plug of an electric charging infrastructure in an electric or hybrid motor vehicle is considered, the actuating element may be designed as a locking pin.
  • electromotive opening drive units are preferably, but not exclusively, considered as components of a motor vehicle lock and preferably a motor vehicle door lock.
  • the electric motor drive typically works directly or indirectly on a pawl as an actuator. With the help of the electric motor drive, the pawl is lifted from its engagement with the rotary latch for this purpose, for example when the motor vehicle door lock is opened electrically. As a result, the rotary latch can open with the help of a spring.
  • a motor vehicle lock and in particular a motor vehicle door lock or electric lock fails the electric motor drive due to a defect, for example, an additional mechanical connection between, for example, an outer door handle or inner door handle and the locking mechanism is often required in such an emergency or malfunction manufactured. In principle, this can also happen and be carried out in the event of a crash.
  • the State of the art according to DE 20 2012 008 326 U1 proposes a motor vehicle door that has a manipulation element on its outside that is therefore accessible and can be acted upon. With the help of the manipulation element, a security unit can be controlled into the “secured” and “unsecured” positions.
  • the security unit is typically a central locking system.
  • a movable pin is provided as a manually actuable manipulation element, which allows mechanical opening from the outside by rotating about its longitudinal axis in malfunction mode.
  • the invention is based on the technical problem of further developing such a drive unit for motor vehicle applications in such a way that a cost-effective, simply constructed and weight-reduced embodiment is made available.
  • a specially designed manipulation element that can be acted upon manually is used first of all.
  • This manipulation element is consistently in its basic position. In the basic position, the manipulation element cannot reverse the drive or, in principle, cannot interact with the drive. To do this, the manipulation element must first be transferred from the basic position to the engagement position in order to reverse the drive. Only when the manipulation element is in the engagement position in relation to the electric motor drive is it also possible to reverse the electric motor drive or generally interact with the electric motor drive.
  • the motor vehicle door lock closed in an emergency in this way with the aid of the manipulation element can of course be opened again if the electric motor drive fails, for example via an external or internal actuating lever chain. In the simplest case, this can take place and be carried out via an outside door handle or possibly also a lock cylinder or a mechanical manipulation element.
  • the invention is of course not limited to motor vehicle locks and in particular motor vehicle door locks.
  • any of the previously described drive units for motor vehicle applications can be reversed with the aid of the manipulation element if the electric motor drive fails.
  • a window lifter drive can be acted upon using the manually actuable manipulation element in such a way that a window that is not completely closed, for example, is closed in this way manually using the manipulation element.
  • a seat adjustment that has failed, for example, can also be adjusted manually with the aid of the manipulation element that can be acted upon manually to the extent that a seat position that is acceptable at least in the medium term can be set up in this way. This is where the main advantages can be seen.
  • the manipulation element is transferred from the basic position to the engaged position manually and against spring force. This means that the manipulation element is acted upon entirely manually.
  • the procedure is usually such that the manipulation element is moved essentially perpendicularly to a drive plane spanned by the drive in order to change from the basic position to the engaged position. In this way it is ensured that the manipulation element in the basic position of the spanned by the drive Drive level is spaced.
  • the manipulation element does not have to be “carried along” when the drive is actuated by an electric motor.
  • the electric motor drive can consequently be dimensioned in such a way that only the movements of the actuating element have to be implemented. This reduces the cost of the electric motor drive and its weight.
  • the manipulation element is largely designed in two parts and is composed of an actuating element and an engagement element.
  • the actuating element and the engagement element are designed in one piece for reasons of cost.
  • an embodiment as a one-piece plastic injection-molded part has proven to be particularly favorable for realizing both the actuating element and the engagement element. This keeps the costs low and also the weight.
  • the design is usually such that the actuating element in the basic position is essentially flush with a cover on the head side. As a result, the actuating element can be manipulated properly on the one hand and protected attachment in or behind the cover is realized on the other hand.
  • the cover can be a connecting plate between the outer door plate and inner door plate of a motor vehicle door. If one considers a drive unit as a power window drive, then the cover may be designed as the interior paneling of the motor vehicle door.
  • the actuating element is usually equipped with an actuating opening for engaging a manipulation tool.
  • the manipulation tool can be a screwdriver, a coin, a key, etc.
  • the manipulation element is according to the invention for the transition from the basic position to the engaged position by pressing against the applied force of a spring.
  • the actual reversing using the manipulation element that can be acted upon manually corresponds to the manipulation element being rotated using the relevant manipulation tool.
  • the reversing takes place in the engaged position against the force of the spring.
  • the manipulation element resumes its basic position.
  • the spring thus ensures a restoring movement of the manipulation element from its engaged position to the basic position as soon as the force acting on it is removed.
  • the engagement element is, according to the invention, a pinion that can be brought into engagement with a worm wheel of the drive.
  • the electromotive drive is composed, according to the invention, of an electric motor and an output worm arranged on its output shaft. The output worm meshes with the worm wheel. If the electric motor drive fails, the engagement element with the pinion formed there can now be brought into engagement with the worm wheel. As a result, the electromotive drive or the actuating element acted upon by it can be moved, or at least reversed, with the aid of the manipulation element, to be precise independently of the electric motor.
  • the engaging member generally braces against a base plate with the help of the spring.
  • the drive unit is arranged between the base plate and the previously mentioned cover and is consequently accommodated in a protected manner between the base plate and the cover.
  • the spring now ensures that the manipulation element is manually transferred from the basic position into the engaged position against the spring force. As soon as the manipulation element is not held in the engaged position against the force of the spring using the manipulation tool, the manipulation element automatically returns to the basic position.
  • a guide for the actuating element and consequently for the manipulation element as a whole is additionally provided so that in this context proper functioning and no canting occur.
  • This guidance is generally found in or on the cover.
  • the design is usually such that the engagement element rests against the guide on the foot side in the basic position of the manipulation element. Accordingly, leadership has a dual function. On the one hand, it ensures that the manipulation element moves smoothly from the basic position to the engagement position and back. This is regularly done linearly along the guide.
  • the guide with the engagement element resting on the guide on the foot side in the basic position ensures that the spring acting on the engagement element only biases the manipulation element into the basic position to such an extent that the actuating element in the said basic position is essentially aligned with the cover on the head side and also can flee.
  • the guide also acts as a stop for the manipulation element in the basic position.
  • a drive unit for motor vehicle applications is made available which, even in the event of a failure, in particular due to a function, at least allows manual reversing.
  • the manipulation element which can be acted upon using a manipulation tool, must first be transferred from its basic position to the engagement position. Without being acted upon, the manipulation element returns from the engagement position to the basic position, so that an opening in the cover that is obligatory in this context is closed by the actuating element and contamination is avoided.
  • the manipulation element located in the basic position ensures that the electric motor drive is not unnecessarily loaded. This is where the main advantages can be seen.
  • a drive unit for motor vehicle applications is shown in the figures. Specifically and not restrictively, it is an electromotive opening drive unit as part of a motor vehicle door lock, which in a 1 shown motor vehicle door 1 is installed.
  • the motor vehicle door 1 is equipped with an outer panel or outer door panel 1a and an inner panel or inner door panel 1b running predominantly parallel thereto. Both metal sheets 1a, 1b are coupled to one another on the face side of the motor vehicle door 1 by a connecting sheet metal 1c. That in the 1
  • the motor vehicle door lock shown is now connected to the connecting panel 1c or coupled to it and extends in a known manner into a cavity between the outer panel 1a and the inner panel 1b. When the motor vehicle door 1 is open, the view of the connecting plate 1c and the motor vehicle door lock attached thereto is revealed.
  • an L-shaped lock case 2 is implemented for this purpose in the exemplary embodiment.
  • a lock housing 11 The lock case 2 and the lock housing 11 are mechanically connected to one another and provide an overall housing 2, 11 for a particular in the 2 recognizable locking mechanism 3, 4 as an essential part of the motor vehicle door lock.
  • the locking mechanism 3, 4 consists of a rotary latch 3 and a pawl 4.
  • an electric motor drive 6, 7, 8 is provided for this purpose.
  • the electric motor drive 6, 7, 8 is used primarily to open the locking mechanism 3, 4 or generally to act on an actuating element 4.
  • the actuating element 4 is the pawl 4.
  • the electric motor 6 is equipped as part of the electric motor drive 6, 7, 8 in detail.
  • the electric motor 6 has an output worm 7 arranged on its output shaft.
  • the output worm 7 meshes with a worm wheel 8.
  • the worm wheel 8 can consequently be in the 2 perform indicated rotations counterclockwise and clockwise around its axis 9.
  • the worm wheel 8 can be in the 2 perform the indicated rotations.
  • the worm wheel 8 is about its axis of rotation 9 in the 2 indicated counterclockwise applied.
  • the electric motor drive 6, 7, 8 works on the pawl 4 as an actuator, which is lifted from its engagement with the catch 3 by a pin 10 provided on the worm wheel 8 .
  • the locking bolt 12 moves away from the motor vehicle door lock via the opening mouth 5 so that the motor vehicle door 1 can be opened.
  • a manually actuable manipulation element 13, 14 is then realized, the detailed structure of which is the subject of 3 is.
  • the manipulation element 13, 14 is mostly formed in two parts with an actuating element 13 and an engagement element 14.
  • the actuating element 13 and the engagement element 14 are designed as a one-piece plastic injection molded part. It can be seen that the manipulation element 13, 14 is let into an opening 15 in a cover 1c.
  • the cover 1c is, not restrictively, the connecting plate 1c, which connects the outer plate 1a and the inner plate 1b of the motor vehicle door 1 to one another.
  • the manipulation element 13, 14 is set up at least in its engagement position with the drive 6, 7, 8 for reversing it. That is, as soon as the manipulation element 13, 14 in its in the 3 is engaged position shown in dashed lines, the drive 6, 7, 8 can be reversed manually and mechanically using the manipulation element 13, 14. This is typically the case when there is a functional failure of the electric motor drive 6, 7, 8. The omission of the electrical energy supply can correspond to this.
  • the actuating element 13 or the manipulation element 13, 14 has an actuating opening 16 for engaging a manipulation tool.
  • Manipulation tool may be a screwdriver, key, coin, etc.
  • the manipulation element 13, 14 can reverse the drive 6, 7, 8, the manipulation element 13, 14 according to the invention must first of its in the 3
  • the basic position shown in solid lines can be transferred to the engagement position shown in dashed lines. This is done manually and against the force of a spring 17.
  • the spring 17 in question is supported between the engagement element 14 as part of the manipulation element 13, 14 on the one hand and a base plate 18 on the other.
  • the design is such that the drive unit shown or the motor vehicle door lock is held and protected as a whole between the connecting plate or the cover 1c and the base plate 18 in question inside the motor vehicle door 1 .
  • the manipulation element 13 , 14 To the manipulation element 13, 14 to change from the solid shown basic position in the 3 into the engaged position shown in dashed lines, the manipulation element 13 , 14 is moved essentially perpendicularly to a drive plane E spanned by the drive 6 , 7 , 8 .
  • the drive plane E in question is primarily spanned and specified by the worm wheel 8 as a component of the electric motor drive 6, 7, 8.
  • the movement from the basic position into the engagement position now takes place perpendicularly to this drive plane E.
  • the manipulation element 13, 14 has a guide 19.
  • the guide 19 is a linear guide.
  • the guide 19 is connected to the cover or the connecting plate 1c and defines the previously mentioned opening 15 for the actuating element 13 as part of the manipulation element 13, 14.
  • the actuation opening 16 in the actuation element 13 is accessible from the outside, so that the manipulation tool in question can be applied at this point.
  • the manipulation element 13, 14 In order to transfer the manipulation element 13, 14 from the basic position shown in solid lines to the engagement position shown in dashed lines, the manipulation element 13, 14 is acted upon by pressure or a force F in the direction of the arrow shown, specifically against the force of spring 17. As soon as the When the manipulation element 13, 14 has reached the engagement position shown in dashed lines, a rotation of the manipulation element 13, 14 results in the worm wheel 8 also being rotated as a result. The force F must be maintained here. As soon as the force F ceases, the spring 17 ensures that the manipulation element 13, 14 is returned from the engaged position to the basic position.
  • the worm wheel 8 can also be moved if, for example, the electric motor 6 has failed.
  • a pawl 4 that previously remained in a lifted state for example, can consequently be transferred to its basic position by reversing the electric motor drive 6, 7, 8, in which the pawl or the actuating element 4 engages and can engage in a latching manner in the rotary latch 3 moved into the closed position.
  • the worm wheel 8 works via a cam 20 or the pin 10 on the actuating element or the pawl 4 in such a way that it locks the in the 2 shown closed position can take again, for example, if previously the electric motor drive 6, 7, 8 has stopped in the position of the pawl 4 shown in phantom. In this way, the desired emergency closure is achieved.
  • the engagement element 14 is equipped with a pinion 21 which, in the engagement position of the manipulation element 13, 14, meshes with an external toothing of the worm wheel 8.
  • this external toothing of the worm wheel 8 engages when a motor is applied of the worm wheel 8 with the help of the electric motor 6 or the output worm 7 on its output shaft the output worm 7 in question.
  • the engagement element 14 in question in the basic position according to the 3 rests against the guide 19 on the foot side.
  • the guide 19 not only ensures linear guidance of the manipulation element 13, 14 or the actuating element 13, but also acts as a stop for the engagement element 14 when the basic position is assumed.
  • the guide 19 is equipped with such a length L that the actuating element 13 in the basic position shown in solid lines is essentially flush with the cover 1c on the head side.
  • the basic position in question is then assumed automatically when the manipulation element 13, 14 is not (or no longer) acted upon by the manipulation tool using the force F. This ensures that the opening 15 present in the cover or the connecting plate 1c is regularly closed, so that no dirt or water can penetrate into the space between the cover 1c and the base plate 18 . This is where the main advantages can be seen.

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  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Description

Die Erfindung betrifft eine Antriebseinheit für kraftfahrzeugtechnische Anwendungen, insbesondere eine elektromotorische Öffnungsantriebseinheit als Bestandteil eines Kraftfahrzeug-Schlosses, vorzugsweise eines Kraftfahrzeug-Türschlosses, mit einem elektromotorischen Antrieb zur Beaufschlagung eines Stellelementes, und mit einem manuell beaufschlagbaren Manipulationselement, welches zumindest in Eingriffposition mit dem Antrieb zu seinem Reversieren eingerichtet ist.The invention relates to a drive unit for automotive applications, in particular an electromotive opening drive unit as part of a motor vehicle lock, preferably a motor vehicle door lock, with an electromotive drive for acting on an actuating element, and with a manually actuable manipulation element, which at least in the engaged position with the drive its reversing is set up.

Antriebseinheiten für kraftfahrzeugtechnische Anwendungen sind in vielfältiger Weise bekannt. Beispielsweise kann es sich bei der Antriebseinheit um einen Fensterheberantrieb, eine Sitz- oder Spiegelverstellung, einen Schiebetürantrieb, eine Tankver- und -entriegelung, einen Heckklappenantrieb aber auch um eine Antriebseinheit handeln, mit deren Hilfe beispielsweise ein Ladestecker bei einem Elektro- oder Hybridfahrzeug im Vergleich zu einer Ladesteckdose verriegelt wird. Dementsprechend verfügt das Stellelement über unterschiedliche Ausprägungen. Beispielsweise mag es sich bei dem Stellelement bei einem Fensterheberantrieb um einen Seilzug handeln. Das Stellelement bei einer Sitz- oder Spiegelverstellung kann demgegenüber als Stellstift ausgebildet sein. Wird eine Ver- und Entriegelung eines Steckers einer elektrischen Ladeinfrastruktur bei einem Elektro- oder Hybridkraftfahrzeug betrachtet, so mag das Stellelement als Verriegelungsstift ausgeführt sein.Drive units for automotive applications are known in many ways. For example, the drive unit can be a power window drive, seat or mirror adjustment, a sliding door drive, a tank locking and unlocking mechanism, a tailgate drive, but also a drive unit that can be used, for example, to charge a charging plug in an electric or hybrid vehicle locked to a charging socket. Accordingly, the control element has different characteristics. For example, the actuating element in a window lifter drive may be a cable pull. In contrast, the adjusting element for a seat or mirror adjustment can be designed as an adjusting pin. If locking and unlocking of a plug of an electric charging infrastructure in an electric or hybrid motor vehicle is considered, the actuating element may be designed as a locking pin.

Neben diesen grundsätzlichen Anwendungen werden bevorzugt, aber nicht ausschließlich, elektromotorische Öffnungsantriebseinheiten als Bestandteile eines Kraftfahrzeug-Schlosses und vorzugsweise eines Kraftfahrzeug-Türschlosses betrachtet. In diesem Fall arbeitet der elektromotorische Antrieb typischerweise mittelbar oder unmittelbar auf eine Sperrklinke als Stellelement. Mithilfe des elektromotorischen Antriebes wird zu diesem Zweck die Sperrklinke beispielsweise beim elektrischen Öffnen des Kraftfahrzeug-Türschlosses von ihrem Eingriff mit der Drehfalle abgehoben. Die Drehfalle kann als Folge hiervon federunterstützt öffnen.In addition to these basic applications, electromotive opening drive units are preferably, but not exclusively, considered as components of a motor vehicle lock and preferably a motor vehicle door lock. In this case, the electric motor drive typically works directly or indirectly on a pawl as an actuator. With the help of the electric motor drive, the pawl is lifted from its engagement with the rotary latch for this purpose, for example when the motor vehicle door lock is opened electrically. As a result, the rotary latch can open with the help of a spring.

Kommt es nun bei einem solchen Kraftfahrzeug-Schloss und insbesondere Kraftfahrzeug-Türschloss bzw. Elektroschloss zu einem Ausfall des elektromotorischen Antriebes durch beispielsweise einen Defekt, so wird oftmals bei einem solchen Notfall oder Störfall eine zusätzliche mechanische Verbindung zwischen beispielsweise einem Außentürgriff oder Innentürgriff und dem Gesperre hergestellt. Das kann grundsätzlich auch in einem Crashfall passieren und vorgenommen werden.If such a motor vehicle lock and in particular a motor vehicle door lock or electric lock fails the electric motor drive due to a defect, for example, an additional mechanical connection between, for example, an outer door handle or inner door handle and the locking mechanism is often required in such an emergency or malfunction manufactured. In principle, this can also happen and be carried out in the event of a crash.

Neben solchen crashbedingten Notfällen, wie sie beispielsweise in der DE 10 2013 217 265 A1 beschrieben werden, sind bei derartigen Antriebseinheiten und insbesondere sogenannten Elektroschlössern mit elektromotorischem Antrieb zumindest zum Öffnen des Gesperres auch funktionsbedingte Notfälle denkbar. Ein solcher funktionsbedingter Notfall kann in der Praxis dann auftreten, wenn beispielsweise der elektromotorische Antrieb durch einen Stromausfall ausgefallen ist. Andere funktionsbedingte Notfälle stellen sich dann ein, wenn der elektromotorische Antrieb schwergängig ist oder infolge von Verschleiß durch eindringenden Schmutz nicht mehr seiner geforderten Funktionalität nachkommt. Das alles führt meistens dazu, dass die Sperrklinke im betrachteten Beispielfall in ihrer abgehobenen Position gegenüber der Drehfalle verbleibt und motorisch nicht (mehr) zurückgestellt werden kann. Das zugehörige Kraftfahrzeug-Schloss lässt sich in einem solchen Fall dementsprechend nicht mehr schließen, was auch für die zugehörige Kraftfahrzeugtür gilt.In addition to such crash-related emergencies, such as those in the DE 10 2013 217 265 A1 are described, functional emergencies are also conceivable with such drive units and in particular so-called electric locks with electric motor drive at least for opening the locking mechanism. Such a function-related emergency can occur in practice if, for example, the electric motor drive has failed due to a power failure. Other function-related emergencies arise when the electric motor drive is stiff or no longer fulfills its required functionality as a result of wear and tear due to penetrating dirt. All of this usually means that the pawl in the example under consideration remains in its raised position relative to the catch and cannot (any longer) be reset by a motor. The associated motor vehicle lock can accordingly no longer be closed in such a case, which also applies to the associated motor vehicle door.

Um in diesem Zusammenhang dennoch das zuvor mithilfe des elektromotorischen Antriebes elektrisch geöffnete Kraftfahrzeug-Türschloss schließen zu können und damit einhergehend den elektromotorischen Antrieb zu reversieren sowie folgerichtig eine Notschließung vorzunehmen, schlägt der Stand der Technik nach der DE 20 2012 008 326 U1 eine Kraftfahrzeugtür vor, die an ihrer Türaußenseite ein von daher zugängliches sowie beaufschlagbares Manipulationselement aufweist. Mithilfe des Manipulationselementes kann eine Sicherungseinheit in die Positionen "gesichert" und "entsichert" gesteuert werden. Bei der Sicherungseinheit handelt es sich typischerweise um eine Zentralverriegelungsanlage.In order to still be able to close the motor vehicle door lock that was previously opened electrically using the electric motor drive in this context and, as a result, to reverse the electric motor drive and consequently carry out an emergency closure, the State of the art according to DE 20 2012 008 326 U1 proposes a motor vehicle door that has a manipulation element on its outside that is therefore accessible and can be acted upon. With the help of the manipulation element, a security unit can be controlled into the “secured” and “unsecured” positions. The security unit is typically a central locking system.

Bei der gattungsbildenden DE 10 2013 217 265 A1 ist in diesem Zusammenhang ein bewegbarer Stift als manuell beaufschlagbares Manipulationselement vorgesehen, welcher durch Drehen um seine Längsachse im Störbetrieb ein mechanisches Öffnen von außen her zulässt.At the generic DE 10 2013 217 265 A1 In this context, a movable pin is provided as a manually actuable manipulation element, which allows mechanical opening from the outside by rotating about its longitudinal axis in malfunction mode.

Der Stand der Technik hat sich grundsätzlich bewährt. Allerdings sind die bisherigen Lösungen mechanisch aufwendig. So sieht die gattungsbildende DE 10 2013 217 265 A1 zusätzlich und obligatorisch eine Feder als mechanischen Energiespeicher vor. Mithilfe des bewegbaren Stiftes kann die im mechanischen Energiespeicher gespeicherte Energie freigegeben werden. Bei Betrachtung der DE 20 2012 008 326 U1 fällt auf, dass das dortige manuelle Manipulationselement an zumindest ein Abtriebselement des elektromotorischen Antriebes angeschlossen ist. Dementsprechend wird das Manipulationselement bei jeder elektrischen Betätigung mitbewegt. Als Folge hiervon muss der elektromotorische Antrieb relativ groß und ausladend aufgebaut werden. Das ist vor dem Hintergrund des enormen Kostendruckes auf dem Gebiet solcher Antriebseinheiten für kraftfahrzeugtechnischer Anwendungen nicht akzeptabel. Hinzu kommt, dass heutzutage generell Lösungen präferiert werden, die zu einer Gewichtsreduktion beitragen. Hier will die Erfindung insgesamt Abhilfe schaffen.The state of the art has basically proven itself. However, the previous solutions are mechanically complex. This is how the generic DE 10 2013 217 265 A1 additionally and obligatory a spring as a mechanical energy store. The energy stored in the mechanical energy store can be released with the aid of the movable pin. When considering the DE 20 2012 008 326 U1 It is noticeable that the manual manipulation element there is connected to at least one output element of the electric motor drive. Accordingly, the manipulation element is moved with each electrical actuation. As a result of this, the electric motor drive has to be built relatively large and expansive. Against the background of the enormous cost pressure in the field of such drive units for motor vehicle applications, this is unacceptable. In addition, nowadays solutions that contribute to weight reduction are generally preferred. This is where the invention aims to remedy the situation overall.

Der Erfindung liegt das technische Problem zugrunde, eine derartige Antriebseinheit für kraftfahrzeugtechnische Anwendungen so weiter zu entwickeln, dass eine kostengünstige und einfach aufgebaute sowie gewichtsmäßig reduzierte Ausführungsform zur Verfügung gestellt wird.The invention is based on the technical problem of further developing such a drive unit for motor vehicle applications in such a way that a cost-effective, simply constructed and weight-reduced embodiment is made available.

Diese technische Problemstellung wird von einer Antriebseinheit gemäß Anspruch 1 gelöst.This technical problem is solved by a drive unit according to claim 1 .

Im Rahmen der Erfindung wird also zunächst einmal auf ein speziell ausgelegtes sowie manuell beaufschlagbares Manipulationselement zurückgegriffen. Dieses Manipulationselement befindet sich durchweg in seiner Grundposition. In der Grundposition kann das Manipulationselement den Antrieb nicht reversieren bzw. grundsätzlich nicht mit dem Antrieb wechselwirken. Dazu muss das Manipulationselement zum Reversieren des Antriebes zunächst von der Grundposition in die Eingriffposition überführt werden. Erst wenn sich das Manipulationselement in der Eingriffposition im Vergleich zum elektromotorischen Antrieb befindet, ist auch ein Reversieren des elektromotorischen Antriebes bzw. allgemein eine Wechselwirkung mit dem elektromotorischen Antrieb möglich.Within the scope of the invention, a specially designed manipulation element that can be acted upon manually is used first of all. This manipulation element is consistently in its basic position. In the basic position, the manipulation element cannot reverse the drive or, in principle, cannot interact with the drive. To do this, the manipulation element must first be transferred from the basic position to the engagement position in order to reverse the drive. Only when the manipulation element is in the engagement position in relation to the electric motor drive is it also possible to reverse the electric motor drive or generally interact with the electric motor drive.

Auf den speziellen Beispielfall eines Kraftfahrzeug-Schlosses und insbesondere Kraftfahrzeug-Türschlosses übertragen bedeutet dies, dass bei einem Ausfall des elektromotorischen Öffnungsantriebes bzw. der elektromotorischen Öffnungsantriebseinheit und in Offenstellung gehaltener Sperrklinke das Manipulationselement zunächst von der Grundposition in die Eingriffposition überführt werden muss. Befindet sich das Manipulationselement in der Eingriffposition, so kann durch eine manuelle Beaufschlagung des Manipulationselementes in der Eingriffposition der elektromotorische Antrieb im Beispielfall reversiert werden, sodass als Folge hiervon die Sperrklinke ihre zunächst gegenüber der Drehfalle abgehobene Position verlässt und insgesamt in ihre Grundstellung überführt werden kann. Dadurch befindet sich das Kraftfahrzeug-Türschloss im Beispielfall in einer notgeschlossenen Position, in welcher ein in die Drehfalle einfahrender Schließbolzen gesichert werden kann.Applied to the specific example of a motor vehicle lock and in particular a motor vehicle door lock, this means that if the electromotive opening drive or the electromotive opening drive unit fails and the pawl is held in the open position, the manipulation element must first be transferred from the basic position to the engaged position. If the manipulation element is in the engaged position, the electric motor drive can be reversed in the example case by manually actuating the manipulation element in the engaged position, so that as a result the pawl leaves its position, which was initially lifted off the rotary latch, and can be transferred overall to its basic position. As a result, in the example, the motor vehicle door lock is in an emergency closed position, in which a locking bolt moving into the rotary latch can be secured.

Denn die Sperrklinke ist jetzt (wieder) in der Lage, in die Drehfalle rastend einfallen zu können.Because the pawl is now (again) able to snap into the catch.

Das auf diese Weise mithilfe des Manipulationselementes notgeschlossene Kraftfahrzeug-Türschloss lässt sich bei einem Ausfall des elektromotorischen Antriebes selbstverständlich wieder öffnen, beispielsweise über eine Außen- oder Innenbetätigungshebelkette. Im einfachsten Fall kann dies über einen Außentürgriff oder auch gegebenenfalls einen Schließzylinder oder ein mechanisches Manipulationselement erfolgen und vorgenommen werden.The motor vehicle door lock closed in an emergency in this way with the aid of the manipulation element can of course be opened again if the electric motor drive fails, for example via an external or internal actuating lever chain. In the simplest case, this can take place and be carried out via an outside door handle or possibly also a lock cylinder or a mechanical manipulation element.

Die Erfindung ist selbstverständlich nicht auf Kraftfahrzeug-Schlösser und insbesondere Kraftfahrzeug-Türschlösser eingeschränkt. Sondern es kann grundsätzlich jedwede der zuvor beschriebenen Antriebseinheiten für kraftfahrzeugtechnische Anwendungen bei einem Ausfall des elektromotorischen Antriebes mithilfe des Manipulationselementes reversiert werden. Beispielsweise lässt sich auf diese Weise ein Fensterheberantrieb mithilfe des manuell beaufschlagbaren Manipulationselementes so beaufschlagen, dass ein beispielsweise nicht vollständig geschlossenes Fenster auf diese Weise manuell mithilfe des Manipulationselementes geschlossen wird. Auch eine beispielsweise ausgefallene Sitzverstellung kann mithilfe des manuell beaufschlagbaren Manipulationselementes soweit manuell verstellt werden, dass auf diese Weise eine zumindest mittelfristig akzeptable Sitzposition eingerichtet werden kann. Hierin sind die wesentlichen Vorteile zu sehen.The invention is of course not limited to motor vehicle locks and in particular motor vehicle door locks. In principle, any of the previously described drive units for motor vehicle applications can be reversed with the aid of the manipulation element if the electric motor drive fails. In this way, for example, a window lifter drive can be acted upon using the manually actuable manipulation element in such a way that a window that is not completely closed, for example, is closed in this way manually using the manipulation element. A seat adjustment that has failed, for example, can also be adjusted manually with the aid of the manipulation element that can be acted upon manually to the extent that a seat position that is acceptable at least in the medium term can be set up in this way. This is where the main advantages can be seen.

Erfindungsgemäß wird das Manipulationselement manuell und gegen Federkraft von der Grundposition in die Eingriffposition überführt. Das heißt, die Beaufschlagung des Manipulationselementes erfolgt insgesamt manuell. Dabei wird darüber hinaus meistens so vorgegangen, dass das Manipulationselement zum Wechsel von der Grundposition in die Eingriffposition im Wesentlichen senkrecht zu einer vom Antrieb aufgespannten Antriebsebene bewegt wird. Auf diese Weise ist sichergestellt, dass das Manipulationselement in der Grundposition von der vom Antrieb aufgespannten Antriebsebene beabstandet ist. Dadurch muss das Manipulationselement bei einer elektromotorischen Betätigung des Antriebes nicht "mitgeschleppt" werden. Der elektromotorische Antrieb kann folglich so dimensioniert werden, dass hiermit lediglich die Bewegungen des Stellelementes umgesetzt werden müssen. Das reduziert die Kosten des elektromotorischen Antriebes und auch sein Gewicht.According to the invention, the manipulation element is transferred from the basic position to the engaged position manually and against spring force. This means that the manipulation element is acted upon entirely manually. In addition, the procedure is usually such that the manipulation element is moved essentially perpendicularly to a drive plane spanned by the drive in order to change from the basic position to the engaged position. In this way it is ensured that the manipulation element in the basic position of the spanned by the drive Drive level is spaced. As a result, the manipulation element does not have to be “carried along” when the drive is actuated by an electric motor. The electric motor drive can consequently be dimensioned in such a way that only the movements of the actuating element have to be implemented. This reduces the cost of the electric motor drive and its weight.

Das Manipulationselement ist erfindungsgemäß größtenteils zweiteilig ausgebildet und setzt sich aus einem Betätigungselement und einem Eingriffelement zusammen. Das Betätigungselement und das Eingriffelement sind erfindungsgemäß aus Kostengründen einstückig ausgelegt. Hier hat sich eine Ausprägung als einstückiges Kunststoffspritzgussteil zur Realisierung sowohl des Betätigungselementes als auch des Eingriffelementes als besonders günstig erwiesen. Hierdurch werden die Kosten niedrig gehalten und auch das Gewicht. Außerdem ist die Auslegung meistens so getroffen, dass das Betätigungselement in der Grundposition kopfseitig im Wesentlichen mit einer Abdeckung fluchtet. Dadurch lässt sich das Betätigungselement einerseits einwandfrei manipulieren und wird andererseits eine geschützte Anbringung in bzw. hinter der Abdeckung realisiert. Bei der Abdeckung kann es sich bei einem Kraftfahrzeug-Türschloss um ein Verbindungsblech zwischen Außentürblech und Innentürblech einer Kraftfahrzeugtür handeln. Betrachtet man eine Antriebseinheit als Fensterheberantrieb, so mag die Abdeckung als Innenverkleidung der Kraftfahrzeugtür ausgelegt sein.According to the invention, the manipulation element is largely designed in two parts and is composed of an actuating element and an engagement element. According to the invention, the actuating element and the engagement element are designed in one piece for reasons of cost. Here, an embodiment as a one-piece plastic injection-molded part has proven to be particularly favorable for realizing both the actuating element and the engagement element. This keeps the costs low and also the weight. In addition, the design is usually such that the actuating element in the basic position is essentially flush with a cover on the head side. As a result, the actuating element can be manipulated properly on the one hand and protected attachment in or behind the cover is realized on the other hand. In the case of a motor vehicle door lock, the cover can be a connecting plate between the outer door plate and inner door plate of a motor vehicle door. If one considers a drive unit as a power window drive, then the cover may be designed as the interior paneling of the motor vehicle door.

So oder so ist das Betätigungselement meistens mit einer Betätigungsöffnung zum Eingriff für ein Manipulationswerkzeug ausgerüstet. Bei dem Manipulationswerkzeug kann es sich um einen Schraubendreher, eine Münze, einen Schlüssel etc handeln. Dabei wird das Manipulationselement erfindungsgemäß zum Übergang von der Grundposition in die Eingriffposition durch Druck gegen die Kraft einer Feder beaufschlagt. Demgegenüber korrespondiert das eigentliche Reversieren mithilfe des manuell beaufschlagbaren Manipulationselementes dazu, dass das Manipulationselement mithilfe des betreffenden Manipulationswerkzeuges in Rotationen versetzt wird. Das Reversieren erfolgt dabei in der Eingriffposition gegen die Kraft der Feder. Sobald der erforderliche Druck wegfällt, nimmt das Manipulationselement erneut seine Grundposition ein. Die Feder sorgt also für eine Rückstellbewegung des Manipulationselementes von seiner Eingriffposition in die Grundposition, sobald die beaufschlagende Kraft wegfällt.Either way, the actuating element is usually equipped with an actuating opening for engaging a manipulation tool. The manipulation tool can be a screwdriver, a coin, a key, etc. The manipulation element is according to the invention for the transition from the basic position to the engaged position by pressing against the applied force of a spring. In contrast, the actual reversing using the manipulation element that can be acted upon manually corresponds to the manipulation element being rotated using the relevant manipulation tool. The reversing takes place in the engaged position against the force of the spring. As soon as the required pressure is removed, the manipulation element resumes its basic position. The spring thus ensures a restoring movement of the manipulation element from its engaged position to the basic position as soon as the force acting on it is removed.

Zu diesem Zweck handelt es sich bei dem Eingriffelement erfindungsgemäß um ein mit einem Schneckenrad des Antriebes in Eingriff bringbares Ritzel. Das heißt, der elektromotorische Antrieb setzt sich erfindungsgemäß aus einem Elektromotor und einer auf seiner Abtriebswelle angeordneten Abtriebsschnecke zusammen. Die Abtriebsschnecke kämmt mit dem Schneckenrad. Bei einem Ausfall des elektromotorischen Antriebes kann nun das Eingriffelement mit dem dort ausgebildeten Ritzel in Eingriff mit dem Schneckenrad gebracht werden. Dadurch lässt sich der elektromotorische Antrieb bzw. das von ihm beaufschlagte Stellelement mithilfe des Manipulationselementes bewegen, und zwar zumindest reversieren, und zwar unabhängig vom Elektromotor.For this purpose, the engagement element is, according to the invention, a pinion that can be brought into engagement with a worm wheel of the drive. This means that the electromotive drive is composed, according to the invention, of an electric motor and an output worm arranged on its output shaft. The output worm meshes with the worm wheel. If the electric motor drive fails, the engagement element with the pinion formed there can now be brought into engagement with the worm wheel. As a result, the electromotive drive or the actuating element acted upon by it can be moved, or at least reversed, with the aid of the manipulation element, to be precise independently of the electric motor.

Das Eingriffelement stützt sich im Allgemeinen mithilfe der Feder gegenüber einer Grundplatte ab. Zwischen der Grundplatte und der zuvor bereits angesprochenen Abdeckung ist die Antriebseinheit angeordnet und wird folgerichtig geschützt zwischen der Grundplatte und der Abdeckung aufgenommen. Die Feder sorgt nun dafür, dass das Manipulationselement manuell gegen die Federkraft von der Grundposition in die Eingriffposition überführt wird. Sobald also das Manipulationselement nicht mithilfe des Manipulationswerkzeuges in der Eingriffposition gegen die Kraft der Feder gehalten wird, kehrt das Manipulationselement automatisch in die Grundposition zurück.The engaging member generally braces against a base plate with the help of the spring. The drive unit is arranged between the base plate and the previously mentioned cover and is consequently accommodated in a protected manner between the base plate and the cover. The spring now ensures that the manipulation element is manually transferred from the basic position into the engaged position against the spring force. As soon as the manipulation element is not held in the engaged position against the force of the spring using the manipulation tool, the manipulation element automatically returns to the basic position.

Damit es in diesem Zusammenhang zu einer einwandfreien Funktionsweise und nicht zu Verkantungen kommt, ist zusätzlich eine Führung für das Betätigungselement und folglich das Manipulationselement insgesamt vorgesehen. Diese Führung findet sich im Allgemeinen in oder an der Abdeckung. Außerdem ist die Auslegung meistens so getroffen, dass das Eingriffelement in der Grundposition des Manipulationselementes fußseitig an der Führung anliegt. Dementsprechend übernimmt die Führung eine zweifache Funktion. Einerseits sorgt sie für die einwandfreie Bewegung des Manipulationselementes von der Grundposition in die Eingriffposition und zurück. Das erfolgt regelmäßig linear entlang der Führung. Außerdem und andererseits sorgt die Führung mit dem in der Grundposition fußseitig an der Führung anliegenden Eingriffelement dafür, dass die das Eingriffelement beaufschlagende Feder das Manipulationselement nur soweit in die Grundposition beaufschlagt, dass das Betätigungselement in der besagten Grundposition kopfseitig im Wesentlichen mit der Abdeckung fluchtet und auch fluchten kann. Das heißt, die Führung fungiert zugleich als Anschlag für das Manipulationselement in der Grundposition.A guide for the actuating element and consequently for the manipulation element as a whole is additionally provided so that in this context proper functioning and no canting occur. This guidance is generally found in or on the cover. In addition, the design is usually such that the engagement element rests against the guide on the foot side in the basic position of the manipulation element. Accordingly, leadership has a dual function. On the one hand, it ensures that the manipulation element moves smoothly from the basic position to the engagement position and back. This is regularly done linearly along the guide. In addition and on the other hand, the guide with the engagement element resting on the guide on the foot side in the basic position ensures that the spring acting on the engagement element only biases the manipulation element into the basic position to such an extent that the actuating element in the said basic position is essentially aligned with the cover on the head side and also can flee. This means that the guide also acts as a stop for the manipulation element in the basic position.

Im Ergebnis wird eine Antriebseinheit für kraftfahrzeugtechnische Anwendungen zur Verfügung gestellt, welche auch bei einem insbesondere funktionsbedingten Ausfall zumindest ein Reversieren auf manuellem Wege ermöglicht. Dazu muss das mithilfe eines Manipulationswerkzeuges beaufschlagbare Manipulationselement zunächst von seiner Grundposition in die Eingriffposition überführt werden. Ohne Beaufschlagung geht das Manipulationselement von der Eingriffposition wieder in die Grundposition über, sodass eine in diesem Zusammenhang obligatorische Öffnung in der Abdeckung von dem Betätigungselement verschlossen wird und Verschmutzungen vermieden werden. Außerdem stellt das in der Grundposition befindliche Manipulationselement sicher, dass der elektromotorische Antrieb nicht unnötig belastet wird. Hierin sind die wesentlichen Vorteile zu sehen.As a result, a drive unit for motor vehicle applications is made available which, even in the event of a failure, in particular due to a function, at least allows manual reversing. For this purpose, the manipulation element, which can be acted upon using a manipulation tool, must first be transferred from its basic position to the engagement position. Without being acted upon, the manipulation element returns from the engagement position to the basic position, so that an opening in the cover that is obligatory in this context is closed by the actuating element and contamination is avoided. In addition, the manipulation element located in the basic position ensures that the electric motor drive is not unnecessarily loaded. This is where the main advantages can be seen.

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

Fig. 1
Die erfindungsgemäße Antriebseinheit in Gestalt eines elektromotorischen Öffnungsantriebes als Bestandteil eines Kraftfahrzeug-Türschlosses,
Fig. 2
Eine Innenansicht des Kraftfahrzeug-Türschlosses nach Fig. 1 und
Fig. 3
Einen schematischen Schnitt durch den Gegenstand nach der Fig. 1 entlang der Linie A-A.
The invention is explained in more detail below with reference to a drawing that merely represents an exemplary embodiment; Show it:
1
The drive unit according to the invention in the form of an electromotive opening drive as part of a motor vehicle door lock,
2
An interior view of the motor vehicle door lock 1 and
3
A schematic section through the subject after 1 along line AA.

In den Figuren ist eine Antriebseinheit für kraftfahrzeugtechnische Anwendungen dargestellt. Konkret und nicht einschränkend geht es um eine elektromotorische Öffnungsantriebseinheit als Bestandteil eines Kraftfahrzeug-Türschlosses, welches in eine in der Fig. 1 dargestellte Kraftfahrzeugtür 1 eingebaut ist. Tatsächlich ist die Kraftfahrzeugtür 1 mit einem Außenblech bzw. Außentürblech 1a und einem hierzu überwiegend parallel verlaufenden Innenblech bzw. Innentürblech 1b ausgerüstet. Beide Bleche 1a, 1b sind stirnseitig der Kraftfahrzeugtür 1 durch ein Verbindungsblech 1c miteinander gekoppelt. Das in der Fig. 1 dargestellte Kraftfahrzeug-Türschloss ist nun an das Verbindungsblech 1c angeschlossen bzw. mit diesem gekoppelt und erstreckt sich in bekannter Art und Weise in einen Hohlraum zwischen dem Außenblech 1a und dem Innenblech 1b. Bei geöffneter Kraftfahrzeugtür 1 wird der Blick auf das Verbindungsblech 1c und das daran angebrachte Kraftfahrzeug-Türschloss freigegeben.A drive unit for motor vehicle applications is shown in the figures. Specifically and not restrictively, it is an electromotive opening drive unit as part of a motor vehicle door lock, which in a 1 shown motor vehicle door 1 is installed. In fact, the motor vehicle door 1 is equipped with an outer panel or outer door panel 1a and an inner panel or inner door panel 1b running predominantly parallel thereto. Both metal sheets 1a, 1b are coupled to one another on the face side of the motor vehicle door 1 by a connecting sheet metal 1c. That in the 1 The motor vehicle door lock shown is now connected to the connecting panel 1c or coupled to it and extends in a known manner into a cavity between the outer panel 1a and the inner panel 1b. When the motor vehicle door 1 is open, the view of the connecting plate 1c and the motor vehicle door lock attached thereto is revealed.

Im Detail ist zu diesem Zweck im Ausführungsbeispiel ein L-förmiger Schlosskasten 2 realisiert. Außerdem ein Schlossgehäuse 11. Der Schlosskasten 2 und das Schlossgehäuse 11 sind mechanisch miteinander verbunden und stellen insgesamt eine Einhausung 2, 11 für ein insbesondere in der Fig. 2 zu erkennendes Gesperre 3, 4 als wesentlicher Bestandteil des Kraftfahrzeug-Türschlosses zur Verfügung. Das Gesperre 3, 4 setzt sich aus einer Drehfalle 3 und einer Sperrklinke 4 zusammen.In detail, an L-shaped lock case 2 is implemented for this purpose in the exemplary embodiment. In addition, a lock housing 11. The lock case 2 and the lock housing 11 are mechanically connected to one another and provide an overall housing 2, 11 for a particular in the 2 recognizable locking mechanism 3, 4 as an essential part of the motor vehicle door lock. The locking mechanism 3, 4 consists of a rotary latch 3 and a pawl 4.

In der Fig. 1 erkennt man von dem Gesperre 3, 4 die Drehfalle 3 in einem Öffnungsmaul 5 im Schlosskasten 2. Tatsächlich sind die Drehfalle 3 und auch die Sperrklinke 4 beabstandet voneinander gemeinsam am längeren L-Schenkel 2a des L-förmigen Schlosskastens 2 gelagert, und zwar um jeweils voneinander beabstandete Drehachsen. Der kürzere L-Schenkel 2b des L-förmigen Schlosskastens 2 dient primär zur Versteifung des Schlosskastens 2.In the 1 From the locking mechanism 3, 4 you can see the rotary latch 3 in an opening 5 in the lock case 2. In fact, the rotary latch 3 and also the pawl 4 are mounted at a distance from each other on the longer L-leg 2a of the L-shaped lock case 2, specifically by spaced apart axes of rotation. The shorter L-leg 2b of the L-shaped lock case 2 serves primarily to stiffen the lock case 2.

Bei dem in der Fig. 1 dargestellten Kraftfahrzeug-Türschloss mit dem Gesperre 3, 4 aus dem Wesentlichen Drehfalle 3 und Sperrklinke 4 handelt es sich im Ausführungsbeispiel um ein elektrisch betätigbares Schloss. Zu diesem Zweck ist ein elektromotorischer Antrieb 6, 7, 8 vorgesehen. Der elektromotorische Antrieb 6, 7, 8 dient nach dem Ausführungsbeispiel primär zum Öffnen des Gesperres 3, 4 bzw. allgemein zur Beaufschlagung eines Stellelementes 4. Bei dem Stellelement 4 handelt es sich im Ausführungsbeispiel um die Sperrklinke 4.At the in the 1 illustrated motor vehicle door lock with the locking mechanism 3, 4 from the essential rotary latch 3 and pawl 4 is in the embodiment to an electrically operated lock. An electric motor drive 6, 7, 8 is provided for this purpose. According to the exemplary embodiment, the electric motor drive 6, 7, 8 is used primarily to open the locking mechanism 3, 4 or generally to act on an actuating element 4. In the exemplary embodiment, the actuating element 4 is the pawl 4.

Zum Öffnen des Gesperres 3, 4 bzw. zur Beaufschlagung des Stellelementes 4 reicht es aus, wenn ein Öffnungswunsch eines Bedieners sensorisch erfasst und in eine entsprechende Beaufschlagung eines Elektromotors 6 als Bestandteil des elektromotorischen Antriebes 6, 7, 8 mündet. Dazu ist im Detail der Elektromotor 6 als Bestandteil des elektromotorischen Antriebes 6, 7, 8 ausgerüstet. Der Elektromotor 6 verfügt über eine auf seiner Abtriebswelle angeordnete Abtriebsschnecke 7. Die Abtriebsschnecke 7 kämmt mit einem Schneckenrad 8. Das Schneckenrad 8 kann folglich in der Fig. 2 angedeutete Rotationen im Gegenuhrzeigersinn und Uhrzeigersinn um seine Achse 9 vollführen.To open the locking mechanism 3, 4 or to act on the actuating element 4, it is sufficient if an operator's wish to open is detected by sensors and results in a corresponding actuation of an electric motor 6 as part of the electromotive drive 6, 7, 8. For this purpose, the electric motor 6 is equipped as part of the electric motor drive 6, 7, 8 in detail. The electric motor 6 has an output worm 7 arranged on its output shaft. The output worm 7 meshes with a worm wheel 8. The worm wheel 8 can consequently be in the 2 perform indicated rotations counterclockwise and clockwise around its axis 9.

Je nach Drehrichtung des Elektromotors 6 und folglich dessen Abtriebswelle und der darauf angebrachten Abtriebsschnecke 7 kann das Schneckenrad 8 die in der Fig. 2 angedeuteten Rotationen vollführen. Zum elektrischen Öffnen des Gesperres 3, 4 wird das Schneckenrad 8 um seine Drehachse 9 im in der Fig. 2 angedeuteten Gegenuhrzeigersinn beaufschlagt. Als Folge hiervon arbeitet der elektromotorische Antrieb 6, 7, 8 auf die Sperrklinke 4 als Stellelement, welche von ihrem Eingriff mit der Drehfalle 3 durch einen am Schneckenrad 8 vorgesehenen Zapfen 10 abgehoben wird. Dadurch verlässt die Drehfalle 3 ihre in der Fig. 2 angedeutete Schließposition und kann federunterstützt im Uhrzeigersinn um ihre Achse aufschwenken und einen zuvor gefangenen Schließbolzen 12 freigeben. Der Schließbolzen 12 bewegt sich über das Öffnungsmaul 5 hindurch von dem Kraftfahrzeug-Türschloss weg, sodass die Kraftfahrzeugtür 1 geöffnet werden kann.Depending on the direction of rotation of the electric motor 6 and consequently its output shaft and the output worm 7 mounted thereon, the worm wheel 8 can be in the 2 perform the indicated rotations. To electrically open the locking mechanism 3, 4, the worm wheel 8 is about its axis of rotation 9 in the 2 indicated counterclockwise applied. As a result, the electric motor drive 6, 7, 8 works on the pawl 4 as an actuator, which is lifted from its engagement with the catch 3 by a pin 10 provided on the worm wheel 8 . This leaves the rotary latch 3 in the 2 indicated closed position and can pivot spring-assisted clockwise around its axis and release a previously caught locking bolt 12. The locking bolt 12 moves away from the motor vehicle door lock via the opening mouth 5 so that the motor vehicle door 1 can be opened.

Zusätzlich und erfindungswesentlich ist dann noch ein manuell beaufschlagbares Manipulationselement 13, 14 realisiert, dessen Detailaufbau insbesondere Gegenstand der Fig. 3 ist. Das Manipulationselement 13, 14 ist größtenteils zweiteilig mit einem Betätigungselement 13 und einem Eingriffelement 14 ausgebildet.In addition and essential to the invention, a manually actuable manipulation element 13, 14 is then realized, the detailed structure of which is the subject of 3 is. The manipulation element 13, 14 is mostly formed in two parts with an actuating element 13 and an engagement element 14.

Nach dem Ausführungsbeispiel sind das Betätigungselement 13 und das Eingriffelement 14 als einstückiges Kunststoffspritzgussteil ausgelegt. Man erkennt, dass das Manipulationselement 13, 14 in eine Öffnung 15 in einer Abdeckung 1c eingelassen ist. Bei der Abdeckung 1c handelt es sich nicht einschränkend nach dem Ausführungsbeispiel um das Verbindungsblech 1c, welches das Außenblech 1a und das Innenblech 1b der Kraftfahrzeugtür 1 miteinander verbindet.According to the exemplary embodiment, the actuating element 13 and the engagement element 14 are designed as a one-piece plastic injection molded part. It can be seen that the manipulation element 13, 14 is let into an opening 15 in a cover 1c. According to the exemplary embodiment, the cover 1c is, not restrictively, the connecting plate 1c, which connects the outer plate 1a and the inner plate 1b of the motor vehicle door 1 to one another.

Das Manipulationselement 13, 14 ist zumindest in seiner Eingriffposition mit dem Antrieb 6, 7, 8 zu dessen Reversieren eingerichtet. Das heißt, sobald sich das Manipulationselement 13, 14 in seiner in der Fig. 3 gestrichelt dargestellten Eingriffposition befindet, kann der Antrieb 6, 7, 8 manuell und mechanisch mithilfe des Manipulationselementes 13, 14 reversiert werden. Das ist typischerweise dann der Fall, wenn es zu einem funktionsbedingten Ausfall des elektromotorischen Antriebes 6, 7, 8 kommt. Hierzu kann der Wegfall der elektrischen Energieversorgung korrespondieren. Zu diesem Zweck verfügt das Betätigungselement 13 bzw. das Manipulationselement 13, 14 über eine Betätigungsöffnung 16 zum Eingriff für ein Manipulationswerkzeug. Bei dem Manipulationswerkzeug mag es sich um einen Schraubendreher, einen Schlüssel, eine Münze etc. handeln.The manipulation element 13, 14 is set up at least in its engagement position with the drive 6, 7, 8 for reversing it. That is, as soon as the manipulation element 13, 14 in its in the 3 is engaged position shown in dashed lines, the drive 6, 7, 8 can be reversed manually and mechanically using the manipulation element 13, 14. This is typically the case when there is a functional failure of the electric motor drive 6, 7, 8. The omission of the electrical energy supply can correspond to this. For this purpose, the actuating element 13 or the manipulation element 13, 14 has an actuating opening 16 for engaging a manipulation tool. In which Manipulation tool may be a screwdriver, key, coin, etc.

Damit das Manipulationselement 13, 14 den Antrieb 6, 7, 8 reversieren kann, muss das Manipulationselement 13, 14 erfindungsgemäß zunächst von seiner in der Fig. 3 durchgezogen dargestellten Grundposition in die gestrichelt wiedergegebene Eingriffposition überführt werden. Das erfolgt manuell und gegen die Kraft einer Feder 17. Zu diesem Zweck stützt sich die fragliche Feder 17 zwischen dem Eingriffelement 14 als Bestandteil des Manipulationselementes 13, 14 einerseits und einer Grundplatte 18 andererseits ab. Tatsächlich ist die Auslegung so getroffen, dass die dargestellte Antriebseinheit bzw. das Kraftfahrzeug-Türschloss insgesamt zwischen dem Verbindungsblech bzw. der Abdeckung 1c und der fraglichen Grundplatte 18 im Innern der Kraftfahrzeugtür 1 gehalten und geschützt aufgenommen wird.So that the manipulation element 13, 14 can reverse the drive 6, 7, 8, the manipulation element 13, 14 according to the invention must first of its in the 3 The basic position shown in solid lines can be transferred to the engagement position shown in dashed lines. This is done manually and against the force of a spring 17. For this purpose, the spring 17 in question is supported between the engagement element 14 as part of the manipulation element 13, 14 on the one hand and a base plate 18 on the other. In fact, the design is such that the drive unit shown or the motor vehicle door lock is held and protected as a whole between the connecting plate or the cover 1c and the base plate 18 in question inside the motor vehicle door 1 .

Um das Manipulationselement 13, 14 zum Wechsel von der durchgezogen dargestellten Grundposition in der Fig. 3 in die gestrichelt wiedergegebene Eingriffposition zu überführen, wird das Manipulationselement 13, 14 im Wesentlichen senkrecht zu einer vom Antrieb 6, 7, 8 aufgespannten Antriebsebene E bewegt. Tatsächlich wird die fragliche Antriebsebene E nach dem Ausführungsbeispiel primär von dem Schneckenrad 8 als Bestandteil des elektromotorischen Antriebes 6, 7, 8 aufgespannt und vorgegeben. Die Bewegung von der Grundposition in die Eingriffposition erfolgt nun senkrecht zu dieser Antriebsebene E. Dazu verfügt das Manipulationselement 13, 14 über eine Führung 19. Bei der Führung 19 handelt es sich um eine Linearführung. Außerdem ist die Führung 19 an die Abdeckung bzw. das Verbindungsblech 1c angeschlossen und definiert die zuvor bereits angesprochene Öffnung 15 für das Betätigungselement 13 als Bestandteil des Manipulationselementes 13, 14.To the manipulation element 13, 14 to change from the solid shown basic position in the 3 into the engaged position shown in dashed lines, the manipulation element 13 , 14 is moved essentially perpendicularly to a drive plane E spanned by the drive 6 , 7 , 8 . In fact, according to the exemplary embodiment, the drive plane E in question is primarily spanned and specified by the worm wheel 8 as a component of the electric motor drive 6, 7, 8. The movement from the basic position into the engagement position now takes place perpendicularly to this drive plane E. For this purpose, the manipulation element 13, 14 has a guide 19. The guide 19 is a linear guide. In addition, the guide 19 is connected to the cover or the connecting plate 1c and defines the previously mentioned opening 15 for the actuating element 13 as part of the manipulation element 13, 14.

Anhand der Fig. 3 erkennt man, dass das Betätigungselement 13 bzw. das Manipulationselement 13, 14 insgesamt in der durchgezogen dargestellten Grundposition kopfseitig im Wesentlichen mit der Abdeckung 1c fluchtet.Based on 3 it can be seen that the actuating element 13 or the manipulation element 13, 14 as a whole in the basic position shown in solid lines is essentially flush with the cover 1c on the head side.

Gleichwohl ist die Betätigungsöffnung 16 in dem Betätigungselement 13 von außen her zugänglich, sodass das fragliche Manipulationswerkzeug an dieser Stelle angesetzt werden kann. Um nun das Manipulationselement 13, 14 von der durchgezogen dargestellten Grundposition in die gestrichelt wiedergegebene Eingriffposition zu überführen, wird das Manipulationselement 13, 14 in der dargestellten Pfeilrichtung durch Druck bzw. eine Kraft F beaufschlagt, und zwar gegen die Kraft der Feder 17. Sobald das Manipulationselement 13, 14 die gestrichelt dargestellte Eingriffposition erreicht hat, führt eine Drehung des Manipulationselementes 13, 14 dazu, dass als Folge hiervon auch das Schneckenrad 8 gedreht wird. Die Kraft F muss hierbei beibehalten werden. Sobald die Kraft F wegfällt, sorgt die Feder 17 dafür, dass das Manipulationselement 13, 14 von der Eingriffposition in die Grundposition zurückgestellt wird.Nevertheless, the actuation opening 16 in the actuation element 13 is accessible from the outside, so that the manipulation tool in question can be applied at this point. In order to transfer the manipulation element 13, 14 from the basic position shown in solid lines to the engagement position shown in dashed lines, the manipulation element 13, 14 is acted upon by pressure or a force F in the direction of the arrow shown, specifically against the force of spring 17. As soon as the When the manipulation element 13, 14 has reached the engagement position shown in dashed lines, a rotation of the manipulation element 13, 14 results in the worm wheel 8 also being rotated as a result. The force F must be maintained here. As soon as the force F ceases, the spring 17 ensures that the manipulation element 13, 14 is returned from the engaged position to the basic position.

Auf diese Weise lässt sich das Schneckenrad 8 auch dann bewegen, wenn beispielsweise der Elektromotor 6 ausgefallen ist. Eine zuvor in beispielsweise abgehobenem Zustand verbliebene Sperrklinke 4 kann folglich unter Reversieren des elektromotorischen Antriebes 6, 7, 8 in seine Grundstellung überführt werden, in welcher die Sperrklinke bzw. das Stellelement 4 rastend in die in Schließposition bewegte Drehfalle 3 einfällt und auch einfallen kann.In this way, the worm wheel 8 can also be moved if, for example, the electric motor 6 has failed. A pawl 4 that previously remained in a lifted state, for example, can consequently be transferred to its basic position by reversing the electric motor drive 6, 7, 8, in which the pawl or the actuating element 4 engages and can engage in a latching manner in the rotary latch 3 moved into the closed position.

Tatsächlich arbeitet im Beispielfall das Schneckenrad 8 über einen Nocken 20 oder den Zapfen 10 auf das Stellelement bzw. die Sperrklinke 4 derart, dass sie die in der Fig. 2 dargestellte Schließposition wieder einnehmen kann, wenn beispielsweise zuvor der elektromotorische Antrieb 6, 7, 8 in der strichpunktiert dargestellten Position der Sperrklinke 4 stehen geblieben ist. Auf diese Weise wird die gewünschte Notschließung erreicht.In fact, in the example, the worm wheel 8 works via a cam 20 or the pin 10 on the actuating element or the pawl 4 in such a way that it locks the in the 2 shown closed position can take again, for example, if previously the electric motor drive 6, 7, 8 has stopped in the position of the pawl 4 shown in phantom. In this way, the desired emergency closure is achieved.

Im Detail ist dazu das Eingriffelement 14 mit einem Ritzel 21 ausgerüstet, welches in der Eingriffposition des Manipulationselementes 13, 14 mit einer außenseitigen Verzahnung des Schneckenrades 8 kämmt. In diese außenseitige Verzahnung des Schneckenrades 8 greift bei einer motorischen Beaufschlagung des Schneckenrades 8 mithilfe des Elektromotors 6 bzw. der Abtriebsschnecke 7 auf seiner Abtriebswelle die fragliche Abtriebsschnecke 7 ein. Außerdem erkennt man, dass das fragliche Eingriffelement 14 in der Grundposition entsprechend der Fig. 3 fußseitig an der Führung 19 anliegt.In detail, the engagement element 14 is equipped with a pinion 21 which, in the engagement position of the manipulation element 13, 14, meshes with an external toothing of the worm wheel 8. In this external toothing of the worm wheel 8 engages when a motor is applied of the worm wheel 8 with the help of the electric motor 6 or the output worm 7 on its output shaft the output worm 7 in question. It can also be seen that the engagement element 14 in question in the basic position according to the 3 rests against the guide 19 on the foot side.

Die Führung 19 sorgt folglich nicht nur für eine lineare Führung des Manipulationselementes 13, 14 bzw. des Betätigungselementes 13, sondern fungiert zugleich als Anschlag für das Eingriffelement 14 bei Einnahme der Grundposition. Dazu ist die Führung 19 mit einer solchen Länge L ausgerüstet, dass das Betätigungselement 13 in der durchgezogenen dargestellten Grundposition kopfseitig im Wesentlichen mit der Abdeckung 1c fluchtet. Die fragliche Grundposition wird automatisch dann eingenommen, wenn das Manipulationselement 13, 14 nicht (mehr) mit dem Manipulationswerkzeug unter Anwendung der Kraft F beaufschlagt wird. Dadurch ist sichergestellt, dass die in der Abdeckung bzw. dem Verbindungsblech 1c vorhandene Öffnung 15 regelmäßig verschlossen ist, sodass in den Zwischenraum zwischen der Abdeckung 1c und der Grundplatte 18 kein Schmutz oder Wasser eindringen kann. Hierin sind die wesentlichen Vorteile zu sehen. Bezugszeichenliste 1 Kraftfahrzeugtür 1a Außenblech/Außentürblech 1b Innenblech/Innentürblech 1c Verbindungsblech/Abdeckung 2 Schlosskasten 2a L-Schenkel 2, 11 Einhausung 2b kurzer L-Schenkel 3 Drehfalle 3, 4 Gesperre 4 Sperrklinke / Stellelement 5 Öffnungsmaul 6 Elektromotor 6, 7, 8 elektro-motorischer Antrieb 7 Abtriebsschnecke 8 Schneckenrad 9 Achse 10 Zapfen 11 Schlossgehäuse 12 Schließbolzen 13 Betätigungselement 13, 14 Manipulations-element 14 Eingriffelement 15 Öffnung 16 Betätigungsöffnung 17 Feder 18 Grundplatte 19 Führung 20 Nocken 21 Ritzel E Antriebsebene L Länge F Kraft Consequently, the guide 19 not only ensures linear guidance of the manipulation element 13, 14 or the actuating element 13, but also acts as a stop for the engagement element 14 when the basic position is assumed. For this purpose, the guide 19 is equipped with such a length L that the actuating element 13 in the basic position shown in solid lines is essentially flush with the cover 1c on the head side. The basic position in question is then assumed automatically when the manipulation element 13, 14 is not (or no longer) acted upon by the manipulation tool using the force F. This ensures that the opening 15 present in the cover or the connecting plate 1c is regularly closed, so that no dirt or water can penetrate into the space between the cover 1c and the base plate 18 . This is where the main advantages can be seen. <b>Reference List</b> 1 motor vehicle door 1a Outer panel/outer door panel 1b inner panel/inner door panel 1c connecting plate/cover 2 lock box 2a L leg 2, 11 enclosure 2 B short L-leg 3 rotary latch 3, 4 lock 4 pawl / actuator 5 opening mouth 6 electric motor 6, 7, 8 electro-motor drive 7 output worm 8th worm wheel 9 axis 10 cones 11 lock case 12 locking bolt 13 actuator 13, 14 manipulation element 14 engagement element 15 opening 16 actuation opening 17 Feather 18 base plate 19 guide 20 cam 21 pinion E drive level L length f power

Claims (7)

  1. Drive unit for motor vehicle applications, in particular an electromotive opening drive unit as part of a motor vehicle latch, preferably a motor vehicle door latch, comprising an electromotive drive (6, 7, 8) for acting upon a control member (4), and comprising a manipulation element (13, 14) which can be acted upon manually and which, at least in the engaged position with the electromotive drive (6, 7, 8), is set up to reverse said drive, the manipulation element (13, 14) being designed largely in two parts, with an operation element (13) and an engagement element (14), the operation element (13) and the engagement element (14) being designed as a one-piece plastics injection molded part, the engagement element (14) having a pinion (21) which can be engaged with a worm wheel (8) of the electromotive drive (6, 7, 8), characterized in that the manipulation element (13, 14) for reversing the electromotive drive (6, 7, 8) must first be transferred from a basic position into the engaged position, the manipulation element (13, 14) being manually transferred from the basic position into the engaged position against a spring force,
    a rotation of the manipulation element (13, 14) leading to the worm wheel (8) also being rotated as a result as soon as the manipulation element (13, 14) has reached the engaged position.
  2. Drive unit according to claim 1, characterized in that the manipulation element (13, 14) is moved substantially perpendicularly in relation to a drive plane (E) spanned by the electromotive drive (6, 7, 8) to change from the basic position into the engaged position.
  3. Drive unit according to claim 1, characterized in that the operation element (13), in the basic position of the manipulation element (13, 14), is substantially flush with a cover (1c) on the head side.
  4. Drive unit according to claim 1, characterized in that the operation element (13) is equipped with an operation opening (16) for engaging a manipulation tool.
  5. Drive unit according to any of claims 1 to 4, characterized in that the engagement element (14) is supported by means of a spring (17) with respect to a base plate (18).
  6. Drive unit according to any of claims 1 to 5, characterized in that a guide (19) is provided for the manipulation element (13, 14).
  7. Drive unit according to claim 6, characterized in that the engagement element (14) bears against the guide (19) on the foot side in the basic position.
EP19765165.6A 2018-09-03 2019-08-26 Drive unit for motor-vehicle applications Active EP3847328B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018121382.4A DE102018121382A1 (en) 2018-09-03 2018-09-03 Drive unit for automotive applications
PCT/DE2019/100770 WO2020048563A1 (en) 2018-09-03 2019-08-26 Drive unit for motor-vehicle applications

Publications (2)

Publication Number Publication Date
EP3847328A1 EP3847328A1 (en) 2021-07-14
EP3847328B1 true EP3847328B1 (en) 2022-12-14

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EP19765165.6A Active EP3847328B1 (en) 2018-09-03 2019-08-26 Drive unit for motor-vehicle applications

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EP (1) EP3847328B1 (en)
DE (1) DE102018121382A1 (en)
WO (1) WO2020048563A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021108162A1 (en) * 2021-03-31 2022-10-06 Kiekert Aktiengesellschaft Motor vehicle lock, in particular motor vehicle door lock

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10042191B4 (en) * 2000-03-08 2004-12-23 Brose Schließsysteme GmbH & Co.KG Motor vehicle door lock with controlled actuator
JP3906341B2 (en) * 2001-09-18 2007-04-18 三井金属鉱業株式会社 Gate lock device for vehicle
JP2009228306A (en) * 2008-03-24 2009-10-08 Aisin Kiko Co Ltd Electric door latch device
DE202012008326U1 (en) * 2012-08-28 2013-12-02 Kiekert Aktiengesellschaft Motor vehicle door lock
DE102013217265A1 (en) * 2013-08-29 2015-03-19 Kiekert Ag Electric motor vehicle lock with spring accumulator
US10472869B2 (en) * 2015-03-12 2019-11-12 Strattec Security Corporation Powered latch mechanism with manual release

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EP3847328A1 (en) 2021-07-14
WO2020048563A1 (en) 2020-03-12
DE102018121382A1 (en) 2020-03-05

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