EP1243725B1 - Locking device for assisted final closing of the wing - Google Patents

Locking device for assisted final closing of the wing Download PDF

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Publication number
EP1243725B1
EP1243725B1 EP02006062A EP02006062A EP1243725B1 EP 1243725 B1 EP1243725 B1 EP 1243725B1 EP 02006062 A EP02006062 A EP 02006062A EP 02006062 A EP02006062 A EP 02006062A EP 1243725 B1 EP1243725 B1 EP 1243725B1
Authority
EP
European Patent Office
Prior art keywords
locking device
rotary catch
lever
stirrup
retaining pawl
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.)
Expired - Fee Related
Application number
EP02006062A
Other languages
German (de)
French (fr)
Other versions
EP1243725A2 (en
EP1243725A3 (en
Inventor
Jürgen Ehret
Michael Helmer
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.)
Siemens AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1243725A2 publication Critical patent/EP1243725A2/en
Publication of EP1243725A3 publication Critical patent/EP1243725A3/en
Application granted granted Critical
Publication of EP1243725B1 publication Critical patent/EP1243725B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00Power-actuated vehicle locks
    • E05B81/12Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/20Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00Power-actuated vehicle locks
    • E05B81/12Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/20Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
    • E05B81/21Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening with means preventing or detecting pinching of objects or body parts
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00Power-actuated vehicle locks
    • E05B81/54Electrical circuits
    • E05B81/90Manual override in case of power failure

Definitions

  • the invention relates to a closing device for doors o. The like., In particular of vehicles, with a catch that cooperates with a pin or striker to lock the door, a pawl, by means of which the catch is locked at least in the closed position and the can be decoupled by means of a decoupling and opening mechanism, and a motor-driven closing aid, wherein at the same time a mechanical interruption of the power flow between the drive of the closing aid and the door to be closed when operating a decoupling element, wherein the Zuzieb Vietnamese drives a driver element and on this or on the catch, the decoupling element is movably mounted, which is movable by means of the decoupling and opening mechanism of a entrainment between the driver element and the rotary latch causing position in a disengaged, the catch releasing position.
  • Such closing devices are known, for example, from tailgates on vehicles in which the flap only needs to be slightly leaned against the body or brought into a pre-locking position and then pulled by the drive of the closing aid in the closed position.
  • Such cinching can be problematic when it comes to activating the closing aid when closing a door or tailgate of a vehicle, although fingers or objects are still trapped between the flap and the frame.
  • the closing aid or the trapped object especially as in known devices, an operation of the unlocking mechanism is ineffective when activated Zuziehzz.
  • a closing device of the aforementioned type is known in which the decoupling element is an additional pawl which can be latched into the pre-catch of the rotary latch.
  • the object of the invention is to provide a closing device for doors, hoods, flaps o. The like., Which reduces the risk of injury or damage when engaging the closing aid.
  • the decoupling element is designed as a bow-shaped decoupling lever, which clings in the driving position a driving pin on the catch.
  • the locking device according to the invention With the help of the locking device according to the invention, it is possible by the simple operation of the decoupling and opening mechanism not only disengage the pawl, whereby the catch is decoupled, but at the same time to achieve an interruption of the power flow of the closing aid and thus to ensure a free rotation of the catch , Therefore, even with self-locking running drives of the closing aid, the door or flap can be easily opened, or the door opens under the pressure of the sealing rubbers. It is thus a quick opening of the door ensures if it has come to a mishap.
  • the locking device according to the invention is particularly suitable for doors, flaps or hoods of motor vehicles, wherein use in other doors, gates or flaps, for example in the field of building technology is conceivable.
  • the arrangement of the movable bow-shaped decoupling lever directly to the driver element or rotary latch offers the advantage of a very space-saving executable locking device that can be easily adapted to the individual circumstances with respect to the space and also manages with a few additional parts.
  • sliding surfaces are provided on the bow-shaped decoupling lever and / or in the region of the driving pin on the rotary latch, which in the disengaged position prevent relative rotation of the elements relative to each other, snapping back the bow-shaped decoupling lever behind the driving pin.
  • the bow-shaped decoupling lever is movable against the load of a biasing spring in its disengaged position, so that it automatically returns in certain relative positions after expressions in its entraining position.
  • the driver element is rotatably mounted on the pivot axis of the rotary latch.
  • the bow-shaped decoupling lever in a substantially radial direction is movable with respect to the axis of rotation of the rotary latch between its positions.
  • the decoupling and opening mechanism is designed so that it has a manually and / or motor-actuated actuating element, which brings the pawl out of engagement with the rotary latch in its open position and the bow-shaped decoupling lever disengages .
  • actuating element and the pawl about a common pivot axis to store rotatably, wherein the pawl against a Biasing spring is rotatable relative to the actuating element. Due to the relative rotatability between the actuating element and the rotary latch ensures that the bow-shaped Untkopplungshabel can only be triggered by targeted actuation of the actuating element, so that misalignments are avoided.
  • a schematic closure device 10 is shown for a tailgate of a motor vehicle.
  • the locking device 10 has a rotary latch 12 which is rotatably mounted about a pivot axis 14 and a receptacle 16 which can receive a pin or striker (not shown) for closing the door.
  • the closed position of the locking device 10 is shown, in which the rotary latch 12 is locked by means of a pawl 18.
  • the pawl 18 is pivotally mounted about a second pivot axis 20, and has a detent 22 which, depending on the rotational position of the catch 12 with a main catch 24 on the catch (see FIGS. 1 and 6) or a pre-catch 26 (see FIG and 4) cooperates.
  • a micro-switch 28 detects the closed position of the locking device 10 and is triggered by the pawl 18 in the illustrated embodiment.
  • the locking device 10 further has a motor-driven closing aid, which acts on a driving lever 30 which is pivotally mounted about the first pivot axis 14 of the rotary latch 12.
  • a bow-shaped decoupling lever 32 is rotatably mounted about a pivot axis 34, wherein a trained in the example as a torsion spring biasing spring is provided which tends to pivot the decoupling lever in the direction of the illustration in the counterclockwise direction.
  • the pivotability of the bow-shaped decoupling lever 32 is limited by a driver pin 38 which is arranged on the rotary latch 12 and, for example, abuts in the closed position shown in FIG. 1 on a contact surface 40 on the bow-shaped decoupling lever 32.
  • the decoupling lever 32 is in this driving position, the rotary latch 12 can be taken by pivoting the driving lever 30, which will be discussed in more detail later.
  • the locking device 10 has a decoupling and opening mechanism, which has a manually and / or motor-actuated actuating lever 42 which is rotatably mounted about the second pivot axis 20 like the pawl 18.
  • a release lever 50 is further integrally formed, which cooperates with an unlocking pin 52 on the decoupling lever 32, provided that the operating lever 42 in a corresponding rotational position is brought.
  • the unlocking lever 50 With the help of the unlocking lever 50, it is possible to pivot the decoupling lever 32 radially inwardly against the load of the first biasing spring 36 and thereby release the driver pin 38 and thus the catch 12.
  • a sliding element 54 which adjoins the driving pin 38, cooperates with a sliding surface 56 on the decoupling lever 32 and prevents snapping back of the decoupling lever 32 with a large relative rotation of the driving lever 30 relative to the rotary latch 12 with the decoupling lever 32 disengaged.
  • an additional lever 58 is still provided, by means of which the pawl 18 can be locked in the disengaged position, to prevent that after an opening and decoupling process with blocked catch 12, for example, by a resting on the tailgate of the vehicle snow load, a snap back of the Pawl prevents and allows the tailgate to open.
  • Fig. 2 the locking device 10 is now shown in its open position.
  • the rotary latch 12 is rotated by a corresponding angular amount in the clockwise direction in the sense of illustration and thereby releases the body-mounted pin or striker.
  • the pawl 18 is correspondingly in a position releasing the rotary latch 12, wherein the latching lug 22 (not shown) bears against an outer surface 60 of the rotary latch 12 under the load of a biasing spring.
  • the operating lever 42 rests on the driver 44 under the load of the second biasing spring 48 on a first edge 62 of the recess 46 and is in one of the position in Fig. 1 almost corresponding absolute position.
  • the driving lever 30 is pivoted under the load of a biasing spring (not shown) in the clockwise direction in the sense of illustration, wherein the decoupling lever 32 is in its disengaged position and on his Bearing surface 56 abuts on the driving pin 38 and the sliding member 54.
  • a biasing spring (not shown) in the clockwise direction in the sense of illustration, wherein the decoupling lever 32 is in its disengaged position and on his Bearing surface 56 abuts on the driving pin 38 and the sliding member 54.
  • the closing bracket penetrates into the receptacle 16 moves the rotary latch 12 and rotates it in the counterclockwise direction, wherein first the locking lug 22 of the pawl snaps into the pre-catch 26 (see Fig. 3) and simultaneously or briefly later the decoupling lever 32 in his driving position snaps, in which he safely encloses the driving pin 38.
  • a micro-switch (not shown) is activated, which triggers the motor drive of the closing aid. This acts on the entrainment lever 30 and thereby ensures via the latched decoupling lever 32 for entrainment of the rotary latch 12 via the intermediate position shown in FIG. 5, in which the detent 22 is located between the pre-catch 26 and the main catch 24, in the closed starting position, as described in connection with FIG. 1.
  • Opening of the locking device 10 is possible by corresponding pivoting of the actuating lever 42.
  • the unlocking lever 50 engages with the unlocking pin 52 on the decoupling lever 32 engages and transports the latter in its disengaged position.
  • the recess 46 ensures that during this flow of about 10 °, the pawl 18 remains unchanged and the latch 22 remains in engagement with the main catch 24.
  • the driver 44 takes on a second edge 64 at the first flank 62 opposite end of the recess 46, the pawl 18 and brings the latch 22 out of engagement with the main latch 24 (see Fig. 7).
  • the additional lever 58 snaps with a catch 66 behind a locking projection 68 on the pawl 18, so that a snap-back of the pawl 18 is only possible then when the auxiliary lever 58 is moved by a release member 70 on the snap-on catch 12 in its disengaged position.
  • a particular advantage of the locking device shown is that an auxiliary opening is also possible when the motorized closing aid has already been activated.
  • the decoupling lever 32 is first disengaged via the unlocking lever 50, whereupon the rotary latch jumps into its open position.
  • the locking device shown has the advantage of allowing immediate opening by operating the operating lever 42 in any position and in any operating condition.
  • This additional security feature requires only a minimum overhead of components and is not accompanied by an increased space requirement, so that can be easily used instead of conventional closing device with closing aid, the locking device.
  • the locking device 10 described is suitable not only for use in a tailgate of a vehicle, but also for doors or hoods outside the automotive sector.

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  • Lock And Its Accessories (AREA)

Description

Die Erfindung befaßt sich mit einer Schließeinrichtung für Türen o. dgl., insbesondere von Fahrzeugen, mit einer Drehfalle, die mit einem Zapfen oder Schließbügel zum Verriegeln der Tür zusammenwirkt, einer Sperrklinke, mit Hilfe derer die Drehfalle wenigstens in der Schließstellung arretierbar ist und die mit Hilfe eines Entkoppel- und Offnungsmechanismus entkoppelbar ist, und einer motorisch angetriebenen Zuziehhilfe, wobei bei Betätigen eines Entkopplungselements gleichzeitig eine mechanische Unterbrechung des Kraftflusses zwischen dem Antrieb der Zuziehhilfe und der zu schließenden Tür erfolgt, wobei die Zuziebhilfe ein Mitnehmerelement antreibt und an diesem oder an der Drehfalle das Entkopplungselement beweglich gelagert ist, das mit Hilfe des Entkoppel- und Öffnungsmechanismus aus einer die Mitnahme zwischen dem Mitnehmerelement und der Drehfalle bewirkenden Stellung in eine ausgerückte, die Drehfalle freigebende Stellung bewegbar ist.The invention relates to a closing device for doors o. The like., In particular of vehicles, with a catch that cooperates with a pin or striker to lock the door, a pawl, by means of which the catch is locked at least in the closed position and the can be decoupled by means of a decoupling and opening mechanism, and a motor-driven closing aid, wherein at the same time a mechanical interruption of the power flow between the drive of the closing aid and the door to be closed when operating a decoupling element, wherein the Zuziebhilfe drives a driver element and on this or on the catch, the decoupling element is movably mounted, which is movable by means of the decoupling and opening mechanism of a entrainment between the driver element and the rotary latch causing position in a disengaged, the catch releasing position.

Derartige Schließeinrichtungen sind beispielsweise von Heckklappen an Fahrzeugen bekannt, bei welchen die Klappe nur noch leicht an die Karosserie angelehnt oder in eine Vorraststellung gebracht zu werden braucht und anschließend vom Antrieb der Zuziehhilfe in die geschlossene Position gezogen wird. Problematisch können derartige Zuziehhilfen dann werden, wenn es beim Schließen einer Tür oder Heckklappe eines Fahrzeuges zu einem Aktivieren der Zuziehhilfe kommt, obwohl noch Finger oder Gegenstände zwischen der Klappe und dem Rahmen eingeklemmt sind. Dadurch besteht eine erhebliche Verletzungsgefahr bzw. die Gefahr einer Beschädigung des Fahrzeuges, der Zuziehhilfe oder des eingeklemmten Gegenstandes, zumal bei bekannten Einrichtungen auch eine Betätigung des Entriegelungsmechanismus bei aktivierter Zuziehhilfe wirkungslos ist. Selbst ein Abschalten des Antriebes der Zuziehhilfe führt wegen der meist selbsthemmend ausgeführten Antriebe nicht zu dem gewünschten Öffnen der Tür, sondern lediglich zu einem Verharren der Tür bzw. Klappe in der momentanen Stellung. Eine elektronische Erfassung eines eingeklemmten Fingers oder Gegenstandes durch Auswertung des Antriebsmotors ist wegen der nur geringfügigen Laststeigerung nicht möglich.Such closing devices are known, for example, from tailgates on vehicles in which the flap only needs to be slightly leaned against the body or brought into a pre-locking position and then pulled by the drive of the closing aid in the closed position. Such cinching can be problematic when it comes to activating the closing aid when closing a door or tailgate of a vehicle, although fingers or objects are still trapped between the flap and the frame. As a result, there is a considerable risk of injury or the risk of damage to the vehicle, the closing aid or the trapped object, especially as in known devices, an operation of the unlocking mechanism is ineffective when activated Zuziehhilfe. Even switching off the drive of the closing aid leads mostly self-locking executed drives not to the desired opening of the door, but only to a persistence of the door or flap in the current position. An electronic detection of a pinched finger or object by evaluation of the drive motor is not possible because of the only slight increase in load.

Aus der WO 00 46472 A ist eine Schließeinrichtung der eingangs genannten Art bekannt, bei der das Entkopplungselement eine Zusatz-Sperrklinke ist, die in die Vorrast der Drehfalle einrastbar ist.From WO 00 46472 A a closing device of the aforementioned type is known in which the decoupling element is an additional pawl which can be latched into the pre-catch of the rotary latch.

Die Aufgabe der Erfindung besteht darin, eine Schließeinrichtung für Türen, Hauben, Klappen o. dgl. zu schaffen, die die Verletzungsgefahr bzw. Beschädigungsgefahr beim Eingreifen der Zuziehhilfe vermindert.The object of the invention is to provide a closing device for doors, hoods, flaps o. The like., Which reduces the risk of injury or damage when engaging the closing aid.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß das Entkopplungsalement als bügelförmiger Entkopplungshebel ausgebildet ist, der in der Mitnehmerstellung einen Mitnehmerzapfen an der Drehfalle umklammert.According to the invention the object is achieved in that the decoupling element is designed as a bow-shaped decoupling lever, which clings in the driving position a driving pin on the catch.

Mit Hilfe der erfindungsgemäßen Schließeinrichtung ist es möglich, durch das einfache Betätigen des Entkoppel- und Öffnungsmechanismus nicht nur die Sperrklinke auszurücken, wodurch die Drehfalle entkoppelt wird, sondern gleichzeitig auch eine Unterbrechung des Kraftflusses der Zuziehhilfe zu erreichen und so eine freie Drehbarkeit der Drehfalle zu gewährleisten. Daher kann selbst bei selbsthemmend ausgeführten Antrieben der Zuziehhilfe die Tür bzw. Klappe leicht geöffnet werden, oder die Tür springt unter dem Druck der Dichtungsgummis auf. Es ist damit ein schnelles Öffnen der Tür gewährleistet, wenn es zu einem Malheur gekommen ist. Wie bereits angedeutet, eignet sich die erfindungsgemäße Schließeinrichtung in besonderer Weise für Türen, Klappen oder Hauben von Kraftfahrzeugen, wobei eine Verwendung bei sonstigen Türen, Toren oder Klappen, beispielsweise im Bereich der Gebäudetechnik denkbar ist.With the help of the locking device according to the invention, it is possible by the simple operation of the decoupling and opening mechanism not only disengage the pawl, whereby the catch is decoupled, but at the same time to achieve an interruption of the power flow of the closing aid and thus to ensure a free rotation of the catch , Therefore, even with self-locking running drives of the closing aid, the door or flap can be easily opened, or the door opens under the pressure of the sealing rubbers. It is thus a quick opening of the door ensures if it has come to a mishap. As already indicated, the locking device according to the invention is particularly suitable for doors, flaps or hoods of motor vehicles, wherein use in other doors, gates or flaps, for example in the field of building technology is conceivable.

Die Anordnung des beweglichen bügelförmigen Entkopplungshebele unmittelbar an dem Mitnehmerelement oder Drehfalle bietet den Vorteil einer sehr raumsparend ausführbaren Schließeinrichtung, die sich leicht den individuellen Gegebenheiten bezüglich des Raumangebots anpassen läßt und auch mit wenigen zusätzlichen Teilen auskommt.The arrangement of the movable bow-shaped decoupling lever directly to the driver element or rotary latch offers the advantage of a very space-saving executable locking device that can be easily adapted to the individual circumstances with respect to the space and also manages with a few additional parts.

In einer besonders zweckmäßige Ausführungsform sind an dem bügelförmigen Entkopplungshebel und/oder im Bereich des Mitnehmerzapfens an der Drehfalle Gleitflächen vorgesehen sind, die in ausgerückter Stellung bei einer relativen Verdrehung der Elemente zueinander ein Zurückschnappen des bügelförmigen Entkopplungshebels hinten den Mitnehmerzapfen verhindern. Durch die letzte Maßnahme wird ausgeschlossen, daß die Schließeinrichtung in eine Stellung gelangt, in welcher die Grundfunktionen nicht mehr gewährleistet wären.In a particularly expedient embodiment, sliding surfaces are provided on the bow-shaped decoupling lever and / or in the region of the driving pin on the rotary latch, which in the disengaged position prevent relative rotation of the elements relative to each other, snapping back the bow-shaped decoupling lever behind the driving pin. By the last measure is excluded that the locking device enters a position in which the basic functions would no longer be guaranteed.

Vorzugsweise ist der bügelförmige Entkopplungshebel gegen die Last einer Vorspannfeder in seine ausgerückte Stellung beweglich, so daß es in bestimmten Relativstellungen nach dem Ausdrücken wieder automatisch in seine mitnehmende Stellung zurückkehrt.Preferably, the bow-shaped decoupling lever is movable against the load of a biasing spring in its disengaged position, so that it automatically returns in certain relative positions after expressions in its entraining position.

In bevorzugter Weiterbildung der Erfindung ist vorgesehen, daß das Mitnehmerelement auf der Schwenkachse der Drehfalle drehbar gelagert ist.In a preferred embodiment of the invention it is provided that the driver element is rotatably mounted on the pivot axis of the rotary latch.

Durch den Wegfall einer zusätzlichen Drehachse wird der Raumbedarf der Konstruktion weiter verringert, wobei ein weiterer Vorteil darin besteht, daß die Drehachse an ihren beiden Enden an einem Gehäuse der Schließeinrichtung abgestützt werden kann, ohne die Drehbewegung eines Bauteils zu behindern.By eliminating an additional axis of rotation of the space requirement of the construction is further reduced, with a further advantage is that the axis of rotation can be supported at its two ends to a housing of the closing device, without hindering the rotational movement of a component.

Vorzugsweise ist weiterhin vorgesehen, daß der bügelförmiger Entkopplungshebel in im wesentlichen radialer Richtung bezüglich der Drehachse der Drehfalle zwischen seinen Stellungen beweglich ist.Preferably, it is further provided that the bow-shaped decoupling lever in a substantially radial direction is movable with respect to the axis of rotation of the rotary latch between its positions.

Da die relativ hohen Mitnahmekräfte zum Schließen der Tür in tangentialer Richtung mit Bezug auf die Drehachse aufzubringen sind, wird mit dieser Anordnung eine Minimierung der zum Ausrücken des bügelförmigen Entkopplungshebels notwendigen Betätigungskräfte erreicht, so daß für eine Hilfsöffnung im Vergleich zu einer normalen Öffnung kein Mehraufwand an Kraft notwendig ist. Besonders einfach läßt sich eine derartige Beweglichkeit des bügelförmigen Entkopplungshebels dadurch erreichen, daß dieses schwenkbar an dem Mitnehmerelement oder der Drehfalle gelagert ist, wobei grundsätzlich auch eine Linearführung des bügelförmigen Entkopplungshebels zwischen seinen Stellungen denkbar ist.Since the relatively high entrainment forces for closing the door in a tangential direction with respect to the axis of rotation are applied, a minimization of the necessary to disengage the bow-shaped decoupling lever actuating forces is achieved with this arrangement, so that no additional effort for an auxiliary opening compared to a normal opening Force is necessary. Particularly simple such mobility of the bow-shaped decoupling lever can be achieved in that this is pivotally mounted on the driver element or the rotary latch, in principle, a linear guide of the bow-shaped decoupling lever between its positions is conceivable.

Vorzugsweise ist der Entkoppel- und Öffnungsmechanismus so gestaltet, daß er ein manuell und/oder motorisch auslösbares Betätigungselement aufweist, das in seiner Öffnungsstellung die Sperrklinke außer Eingriff mit der Drehfalle bringt und den bügelförmigen Entkopplungshebel ausrückt. Ein derartiger Aufbau des Entkoppel- und Öffnungsmechanismus ist im Sinne einer einfachen Konstruktion mit wenigen Teilen und geringem Raumbedarf, wobei es im Hinblick auf diese Zielsetzung auch bevorzugt ist, das Betätigungselement und die Sperrklinke um eine gemeinsame Schwenkachse drehbar zu lagern, wobei die Sperrklinke gegen eine Vorspannfeder relativ zu dem Betätigungselement verdrehbar ist. Durch die relative Verdrehbarkeit zwischen dem Betätigungselement und der Drehfalle wird sichergestellt, daß der bügelförmige Untkopplungshabel nur durch gezielte Betätigung des Betätigungselements ausgelöst werden kann, so daß Fehlstellungen vermieden werden.Preferably, the decoupling and opening mechanism is designed so that it has a manually and / or motor-actuated actuating element, which brings the pawl out of engagement with the rotary latch in its open position and the bow-shaped decoupling lever disengages . Such a construction of the decoupling and opening mechanism is in the sense of a simple construction with few parts and small space requirement, it being preferred in view of this objective, the actuating element and the pawl about a common pivot axis to store rotatably, wherein the pawl against a Biasing spring is rotatable relative to the actuating element. Due to the relative rotatability between the actuating element and the rotary latch ensures that the bow-shaped Untkopplungshabel can only be triggered by targeted actuation of the actuating element, so that misalignments are avoided.

Nachfolgend wird anhand der beigefügten Zeichnungen näher auf ein Ausführungsbeispiel der Erfindung eingegangen. Es zeigen:

Fig. 1
eine schematische Ansicht einer Schließeinrichtung in geschlossenem Zustand;
Fig. 2
die Schließeinrichtung nach Fig. 1 in geöffnetem Zustand;
Fig. 3
die Schließeinrichtung gemäß Fig. 1 in einer Vorraststellung;
Fig. 4
die Schließeinrichtung gemäß Fig. 1 beim Beginn des Zuziehvorgangs;
Fig. 5
die Schließstellung zwischen der Vorraststellung und der Schließstellung;
Fig. 6
die Schließeinrichtung gemäß Fig. 1 in einer Zwischenstellung des öffnungsvorgangs;
Fig. 7
die Schließeinrichtung in einer Stellung ähnlich Fig. 6 kurz vor der Freigabe der Drehfalle;
Fig. 8
die Schließeinrichtung gemäß Fig. 1 in einer sich bei einer Notöffnung ergebenden Stellung.
Hereinafter, an embodiment of the invention will be described in more detail with reference to the accompanying drawings. Show it:
Fig. 1
a schematic view of a closing device in the closed state;
Fig. 2
the locking device of Figure 1 in the open state.
Fig. 3
the locking device of Figure 1 in a pre-locking position.
Fig. 4
the locking device of Figure 1 at the beginning of Zuziehvorgangs.
Fig. 5
the closed position between the pre-locking position and the closed position;
Fig. 6
the locking device of Figure 1 in an intermediate position of the opening operation.
Fig. 7
the locking device in a position similar to Figure 6 shortly before the release of the rotary latch.
Fig. 8
the locking device of FIG. 1 in a resulting in an emergency opening position.

In Fig. 1 ist eine schematisierte Schließeinrichtung 10 für eine Heckklappe eines Kraftfahrzeuges dargestellt. Die Schließeinrichtung 10 verfügt über eine Drehfalle 12, die um eine Schwenkachse 14 drehbar gelagert ist und eine Aufnahme 16 aufweist, die einen Zapfen bzw. Schließbügel (nicht dargestellt) zum Schließen der Tür aufnehmen kann. In Fig. 1 ist die Schließstellung der Schließeinrichtung 10 dargestellt, in welcher die Drehfalle 12 mit Hilfe einer Sperrklinke 18 arretiert ist. Die Sperrklinke 18 ist um eine zweite Schwenkachse 20 schwenkbar gelagert, und verfügt über eine Rastnase 22, die je nach Drehstellung der Drehfalle 12 mit einer Hauptraste 24 an der Drehfalle (siehe Fig. 1 und 6) oder einer Vorraste 26 (siehe Fig. 3 und 4) zusammenwirkt.In Fig. 1, a schematic closure device 10 is shown for a tailgate of a motor vehicle. The locking device 10 has a rotary latch 12 which is rotatably mounted about a pivot axis 14 and a receptacle 16 which can receive a pin or striker (not shown) for closing the door. In Fig. 1, the closed position of the locking device 10 is shown, in which the rotary latch 12 is locked by means of a pawl 18. The pawl 18 is pivotally mounted about a second pivot axis 20, and has a detent 22 which, depending on the rotational position of the catch 12 with a main catch 24 on the catch (see FIGS. 1 and 6) or a pre-catch 26 (see FIG and 4) cooperates.

Ein Mikroschalter 28 erfaßt die Schließstellung der Schließeinrichtung 10 und wird bei dem dargestellten Ausführungsbeispiel durch die Sperrklinke 18 ausgelöst.A micro-switch 28 detects the closed position of the locking device 10 and is triggered by the pawl 18 in the illustrated embodiment.

Die Schließeinrichtung 10 verfügt ferner über eine motorisch angetriebene Zuziehhilfe, die auf einen Mitnehmerhebel 30 wirkt, der um die erste Schwenk-chse 14 der Drehfalle 12 schwenkbar gelagert ist. An dem Mitnehmerhebel 30 ist ein bügelförmiger Entkopplungshebel 32 um eine Schwenkachse 34 drehbar gelagert, wobei eine im dargestellten Beispiel als Torsionsfeder ausgebildete Vorspannfeder vorgesehen ist, die bestrebt ist, den Entkopplungshebel im Sinne der Darstellung im Gegenuhrzeigersinn zu verschwenken.The locking device 10 further has a motor-driven closing aid, which acts on a driving lever 30 which is pivotally mounted about the first pivot axis 14 of the rotary latch 12. On the driver lever 30, a bow-shaped decoupling lever 32 is rotatably mounted about a pivot axis 34, wherein a trained in the example as a torsion spring biasing spring is provided which tends to pivot the decoupling lever in the direction of the illustration in the counterclockwise direction.

Die Verschwenkbarkeit des bügelförmigen Entkopplungshebels 32 wird durch einen Mitnehmerzapfen 38 begrenzt, der an der Drehfalle 12 angeordnet ist und beispielsweise in der in Fig. 1 gezeigten Schließstellung an einer Anlagefläche 40 an dem bügelförmigen Entkopplungshebel 32 anliegt. Befindet sich der Entkopplungshebel 32 in dieser Mitnehmerstellung, kann durch Verschwenken des Mitnehmerhebels 30 die Drehfalle 12 mitgenommen werden, worauf später noch genauer eingegangen werden wird.The pivotability of the bow-shaped decoupling lever 32 is limited by a driver pin 38 which is arranged on the rotary latch 12 and, for example, abuts in the closed position shown in FIG. 1 on a contact surface 40 on the bow-shaped decoupling lever 32. The decoupling lever 32 is in this driving position, the rotary latch 12 can be taken by pivoting the driving lever 30, which will be discussed in more detail later.

Ferner besitzt die Schließeinrichtung 10 einen Entkoppel- und Öffnungsmechanismus, der über einen manuell und/oder motorisch auslösbaren Betätigungshebel 42 verfügt, der wie die Sperrklinke 18 um die zweite Schwenkachse 20 drehbar gelagert ist. Die Mitnahme der Sperrklinke 18 durch den Betätigungshebel 42 erfolgt über einen Mitnehmernocken 44, der in eine Ausnehmung in der Sperrklinke 18 eingreift, die eine gewisse relative Verdrehung des Betätigungshebels 42 gegenüber der Sperrklinke 18 gegen die Last einer zweiten Vorspannfeder 48 erlaubt, die als Torsionsfeder um die zweite Schwenkachse 20 angeordnet ist. An dem Betätigungshebel 42 ist ferner ein Entriegelungshebel 50 angeformt, der mit einem Entriegelungszapfen 52 an dem Entkopplungshebel 32 zusammenwirkt, sofern der Betätigungshebel 42 in eine entsprechende Drehposition gebracht wird. Mit Hilfe des Entriegelungshebels 50 ist es möglich, den Entkopplungshebel 32 radial nach innen gegen die Last der ersten Vorspannfeder 36 zu verschwenken und dadurch den Mitnehmerzapfen 38 und damit die Drehfalle 12 freizugeben. Ein Gleitelement 54, das sich an den Mitnehmerzapfen 38 anschließt, wirkt mit einer Gleitfläche 56 an dem Entkopplungshebel 32 zusammen und verhindert ein Zurückschnappen des Entkopplungshebels 32 bei großer relativer Verdrehung des Mitnehmerhebels 30 gegenüber der Drehfalle 12 bei ausgerücktem Entkopplungshebel 32.Further, the locking device 10 has a decoupling and opening mechanism, which has a manually and / or motor-actuated actuating lever 42 which is rotatably mounted about the second pivot axis 20 like the pawl 18. The entrainment of the pawl 18 by the actuating lever 42 via a driver cam 44 which engages in a recess in the pawl 18, which allows a certain relative rotation of the actuating lever 42 relative to the pawl 18 against the load of a second biasing spring 48 which as a torsion spring the second pivot axis 20 is arranged. On the actuating lever 42, a release lever 50 is further integrally formed, which cooperates with an unlocking pin 52 on the decoupling lever 32, provided that the operating lever 42 in a corresponding rotational position is brought. With the help of the unlocking lever 50, it is possible to pivot the decoupling lever 32 radially inwardly against the load of the first biasing spring 36 and thereby release the driver pin 38 and thus the catch 12. A sliding element 54, which adjoins the driving pin 38, cooperates with a sliding surface 56 on the decoupling lever 32 and prevents snapping back of the decoupling lever 32 with a large relative rotation of the driving lever 30 relative to the rotary latch 12 with the decoupling lever 32 disengaged.

Ferner ist noch ein Zusatzhebel 58 vorgesehen, mit Hilfe dessen die Sperrklinke 18 in ausgerückter Stellung arretierbar ist, um zu verhindern, daß nach einem Öffnungs- und Entkopplungsvorgang bei blockierter Drehfalle 12, beispielsweise durch eine auf der Heckklappe des Fahrzeuges ruhende Schneelast, ein Zurückschnappen der Sperrklinke verhindert und damit ein Öffnen der Heckklappe erlaubt.Furthermore, an additional lever 58 is still provided, by means of which the pawl 18 can be locked in the disengaged position, to prevent that after an opening and decoupling process with blocked catch 12, for example, by a resting on the tailgate of the vehicle snow load, a snap back of the Pawl prevents and allows the tailgate to open.

In Fig. 2 ist die Schließeinrichtung 10 nunmehr in ihrer geöffneten Stellung dargestellt. Die Drehfalle 12 ist um einen entsprechenden Winkelbetrag im Uhrzeigersinn im Sinne der Darstellung verdreht und gibt dadurch den karosserieseitig montierten Zapfen bzw. Schließbügel frei. Die Sperrklinke 18 befindet sich entsprechend in einer die Drehfalle 12 freigebenden Stellung, wobei die Rastnase 22 unter der Last einer Vorspannfeder (nicht gezeigt) an einer Außenfläche 60 der Drehfalle 12 anliegt. Der Betätigungshebel 42 liegt über den Mitnehmer 44 unter der Last der zweiten Vorspannfeder 48 an einer ersten Flanke 62 der Ausnehmung 46 an und befindet sich in einer der Stellung in Fig. 1 nahezu entsprechenden Absolutstellung.In Fig. 2, the locking device 10 is now shown in its open position. The rotary latch 12 is rotated by a corresponding angular amount in the clockwise direction in the sense of illustration and thereby releases the body-mounted pin or striker. The pawl 18 is correspondingly in a position releasing the rotary latch 12, wherein the latching lug 22 (not shown) bears against an outer surface 60 of the rotary latch 12 under the load of a biasing spring. The operating lever 42 rests on the driver 44 under the load of the second biasing spring 48 on a first edge 62 of the recess 46 and is in one of the position in Fig. 1 almost corresponding absolute position.

Auch der Mitnehmerhebel 30 ist unter der Last einer Vorspannfeder (nicht gezeigt) im Uhrzeigersinn im Sinne der Darstellung verschwenkt, wobei sich der Entkopplungshebel 32 in seiner ausgerückten Stellung befindet und über seine Anlagefläche 56 an dem Mitnehmerzapfen 38 bzw. dem Gleitelement 54 anliegt.Also, the driving lever 30 is pivoted under the load of a biasing spring (not shown) in the clockwise direction in the sense of illustration, wherein the decoupling lever 32 is in its disengaged position and on his Bearing surface 56 abuts on the driving pin 38 and the sliding member 54.

Wird nun die Heckklappe geschlossen, bewegt der in die Aufnahme 16 eindringende Schließbügel die Drehfalle 12 und verdreht sie im Gegenuhrzeigersinn, wobei zunächst die Rastnase 22 der Sperrklinke in die Vorraste 26 einschnappt (siehe Fig. 3) und gleichzeitig oder kurzzeitig später der Entkopplungshebel 32 in seine Mitnehmerstellung schnappt, in welcher er den Mitnehmerzapfen 38 sicher umschließt. In dieser Stellung wird ein Mikroschalter (nicht dargestellt) aktiviert, der den motorischen Antrieb der Zuziehhilfe auslöst. Diese wirkt auf den Mitnehmerhebel 30 und sorgt dadurch über den eingerasteten Entkopplungshebel 32 für eine Mitnahme der Drehfalle 12 über die in Fig. 5 dargestellte Zwischenstellung, in welcher sich die Rastnase 22 zwischen der Vorraste 26 und der Hauptrast 24 befindet, in die geschlossene Ausgangsstellung, wie sie im Zusammenhang in Fig. 1 beschrieben worden ist.Now, if the tailgate is closed, the closing bracket penetrates into the receptacle 16 moves the rotary latch 12 and rotates it in the counterclockwise direction, wherein first the locking lug 22 of the pawl snaps into the pre-catch 26 (see Fig. 3) and simultaneously or briefly later the decoupling lever 32 in his driving position snaps, in which he safely encloses the driving pin 38. In this position, a micro-switch (not shown) is activated, which triggers the motor drive of the closing aid. This acts on the entrainment lever 30 and thereby ensures via the latched decoupling lever 32 for entrainment of the rotary latch 12 via the intermediate position shown in FIG. 5, in which the detent 22 is located between the pre-catch 26 and the main catch 24, in the closed starting position, as described in connection with FIG. 1.

Ein Öffnen der Schließeinrichtung 10 ist durch entsprechendes Verschwenken des Betätigungshebels 42 möglich. Dabei gelangt zunächst der Entriegelungshebel 50 mit dem Entriegelungszapfen 52 an dem Entkopplungshebel 32 in Eingriff und transportiert letzteren in seine ausgerückte Stellung. Die Ausnehmung 46 sorgt dafür, daß während dieses Vorlaufs von ungefähr 10° die Sperrklinke 18 unverändert verharrt und die Rastnase 22 in Eingriff mit der Hauptraste 24 verbleibt. Sobald das durch die Ausnehmung 46 zur Verfügung stehende Spiel aufgezehrt ist, nimmt der Mitnehmer 44 über eine zweite Flanke 64 an dem der ersten Flanke 62 gegenüberliegenden Ende der Ausnehmung 46 die Sperrklinke 18 mit und bringt die Rastnase 22 außer Eingriff mit der Hauptraste 24 (siehe Fig. 7). Kurz vor dem Aufspringen der Drehfalle 12 unter der Last einer Vorspannfeder (nicht gezeigt) schnappt der Zusatzhebel 58 mit einer Raste 66 hinter einen Rastvorsprung 68 an der Sperrklinke 18, so daß ein Zurückschnappen der Sperrklinke 18 erst dann möglich ist, wenn der Zusatzhebel 58 von einem Ausrückelement 70 an der aufschnappenden Drehfalle 12 in seine ausgerückte Stellung bewegt wird.Opening of the locking device 10 is possible by corresponding pivoting of the actuating lever 42. Initially, the unlocking lever 50 engages with the unlocking pin 52 on the decoupling lever 32 engages and transports the latter in its disengaged position. The recess 46 ensures that during this flow of about 10 °, the pawl 18 remains unchanged and the latch 22 remains in engagement with the main catch 24. As soon as the available through the recess 46 game is consumed, the driver 44 takes on a second edge 64 at the first flank 62 opposite end of the recess 46, the pawl 18 and brings the latch 22 out of engagement with the main latch 24 (see Fig. 7). Just before the catch 12 springs under the load of a biasing spring (not shown), the additional lever 58 snaps with a catch 66 behind a locking projection 68 on the pawl 18, so that a snap-back of the pawl 18 is only possible then when the auxiliary lever 58 is moved by a release member 70 on the snap-on catch 12 in its disengaged position.

Ein besonderer Vorzug der dargestellten Schließeinrichtung besteht darin, daß eine Hilfsöffnung auch dann möglich ist, wenn die motorische Zuziehhilfe bereits aktiviert worden ist. Durch entsprechendes Betätigen des Betätigungshebels 42 während des Zuziehvorgangs, wie er in Fig. 6 veranschaulicht ist, wird zunächst über den Entriegelungshebel 50 der Entkopplungshebel 32 ausgerückt, woraufhin die Drehfalle in ihre geöffnete Stellung springt.A particular advantage of the locking device shown is that an auxiliary opening is also possible when the motorized closing aid has already been activated. By correspondingly actuating the actuating lever 42 during the closing operation, as illustrated in FIG. 6, the decoupling lever 32 is first disengaged via the unlocking lever 50, whereupon the rotary latch jumps into its open position.

Die dargestellte Schließeinrichtung bietet den Vorteil, in jeder Stellung und in jedem Betriebszustand ein sofortiges Öffnen durch Betätigen des Betätigungshebels 42 zu ermöglichen. Diese zusätzliche Sicherungsfunktion erfordert nur einen minimalen Mehraufwand an Bauteilen und geht auch nicht mit einem vergrößerten Raumbedarf einher, so daß sich die Schließeinrichtung leicht anstelle konventioneller Schließeinrichtung mit Zuziehhilfe einsetzen läßt.The locking device shown has the advantage of allowing immediate opening by operating the operating lever 42 in any position and in any operating condition. This additional security feature requires only a minimum overhead of components and is not accompanied by an increased space requirement, so that can be easily used instead of conventional closing device with closing aid, the locking device.

Die beschriebene Schließeinrichtung 10 eignet sich nicht nur für den Einsatz in einer Heckklappe eines Fahrzeuges, sondern auch für Türen oder Hauben auch außerhalb des Kraftfahrzeugsektors.The locking device 10 described is suitable not only for use in a tailgate of a vehicle, but also for doors or hoods outside the automotive sector.

Claims (10)

  1. Locking device for doors and the like, especially vehicle doors, having a rotary catch (12) which interacts with a pin or locking shackle for bolting the door, a retaining pawl (18), which serves to arrest the rotary catch (12) at least in the locking position and which can be released by means of a release and opening mechanism (42), and a motor-driven assisted final closing mechanism, actuation of the release element simultaneously giving rise to a mechanical interruption of the power flow between the drive of the assisted final closing mechanism and the door to be locked, the assisted final closing mechanism driving a carrier element (30) and the latter or the rotary catch (12) serving for moveable support of the release element (32), which by means of the release and opening mechanism (42, 50) can be shifted from a position producing a driving action between the carrier element (30) and the rotary catch (12) into a disengaged position releasing the rotary catch (12), characterized in that the release element takes the form of a stirrup-shaped release lever (32), which in the carrier position clamps around a driving pin (38) on the rotary catch (12).
  2. Locking device according to Claim 1, characterized in that slide faces (54, 56), which in the disengaged position prevent the stirrup-shaped release leaver (32) snapping back behind the driving pin (38) in the event of a rotation of the elements (12, 30) relative to one another, are provided on the stirrup-shaped release lever (32) and/or in the area of the driving pin (38).
  3. Locking device according to any one of the preceding claims, characterized in that the stirrup-shaped release lever (32) can be moved into its disengaged position in opposition to the load of a tensioning spring (36).
  4. Locking device according to any one of the preceding claims, characterized in that the carrier element (30) is rotatably supported on the pivot axis (14) of the rotary catch (12).
  5. Locking device according to any one of the preceding claims, characterized in that the stirrup-shaped release lever (32) is moveable between its positions in an essentially radial direction to the axis of rotation (14) of the rotary catch (12).
  6. Locking device according to any one of the preceding claims, characterized in that the stirrup-shaped release lever (32) is pivotally supported on the carrier element (30).
  7. Locking device according to any one of the preceding claims, characterized in that the release mechanism has a manually operated and/or motor-driven actuating element (42), which in its open position disengages the retaining pawl (18) from the rotary catch (12) and releases the stirrup-shaped release lever (32).
  8. Locking device according to Claim 7, characterized in that the actuating element (42) and the retaining pawl (18) are supported so that they can rotate about a common pivot axis (20), the retaining pawl (18) being rotatable relative to the actuating element (42) in opposition to a tensioning spring (48).
  9. Locking device according to any one of the preceding claims, characterized in that an additional lever (58) holds the retaining pawl (18) in the opened position after opening when the door or the like is obstructed, and is disengaged from the retaining pawl (18) by the opening movement of the door and/or the rotary catch (12).
  10. Locking device according to any one of the preceding claims, characterized in that the retaining pawl (18) arrests the rotary catch (12) in a preliminary latching position (26), in which the assisted final closing mechanism can be activated by way of a microswitch or the like.
EP02006062A 2001-03-23 2002-03-18 Locking device for assisted final closing of the wing Expired - Fee Related EP1243725B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10114438A DE10114438A1 (en) 2001-03-23 2001-03-23 Locking device with closing aid
DE10114438 2001-03-23

Publications (3)

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EP1243725A2 EP1243725A2 (en) 2002-09-25
EP1243725A3 EP1243725A3 (en) 2003-12-17
EP1243725B1 true EP1243725B1 (en) 2006-06-07

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EP02006062A Expired - Fee Related EP1243725B1 (en) 2001-03-23 2002-03-18 Locking device for assisted final closing of the wing

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DE (2) DE10114438A1 (en)

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Publication number Priority date Publication date Assignee Title
DE10251375A1 (en) * 2002-11-05 2004-05-13 Valeo Sicherheitssysteme Gmbh Locking aid for locking a vehicle door
FR2850698A1 (en) * 2003-01-30 2004-08-06 Valeo Securite Habitacle Hatch lock for automobile vehicle, has opening assistance unit for discharging blocking unit that blocks latch in closing position and for activating disengaging unit to disengage closing assistance unit
DE102009026921A1 (en) * 2009-06-12 2010-12-16 Kiekert Ag Motor vehicle lock with closing aid
DE102010049567A1 (en) 2010-10-26 2012-04-26 Happich Gmbh Locking device, particularly for building doors, comprises locking mechanism with lock element, rotary catch, and lock holder that is designed as latching bolt unit
DE102011012656A1 (en) * 2011-02-28 2012-08-30 Kiekert Ag Motor vehicle door lock
DE102018107210A1 (en) * 2018-03-27 2019-10-02 Kiekert Ag Motor vehicle door lock
DE102019110253A1 (en) * 2019-04-18 2020-10-22 Kiekert Aktiengesellschaft Door lock, in particular motor vehicle door lock
CN112177451B (en) * 2020-11-13 2024-05-28 无锡忻润汽车安全系统有限公司 Integrated electric unlocking self-priming door lock
CN112523622A (en) * 2020-12-18 2021-03-19 常州市武进华瑞电子有限公司 Battery compartment locking device with self-locking mechanism

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DE4319122C1 (en) * 1993-06-09 1994-10-20 Daimler Benz Ag Power-assisted rotary-latch closure for vehicles
US5938252A (en) * 1996-08-22 1999-08-17 Asmo Co., Ltd. Door member locking/unlocking apparatus
US6422615B1 (en) * 1998-07-20 2002-07-23 Mannesmann Vdo Ag Closure device with shutting aid
DE19904663C2 (en) * 1999-02-04 2001-02-15 Bosch Gmbh Robert Motor vehicle door lock with electrical locking aid and opening aid

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EP1243725A2 (en) 2002-09-25
DE50207052D1 (en) 2006-07-20
DE10114438A1 (en) 2002-10-02
EP1243725A3 (en) 2003-12-17

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