EP3899174B1 - Lock for a motor vehicle - Google Patents
Lock for a motor vehicle Download PDFInfo
- Publication number
- EP3899174B1 EP3899174B1 EP19828209.7A EP19828209A EP3899174B1 EP 3899174 B1 EP3899174 B1 EP 3899174B1 EP 19828209 A EP19828209 A EP 19828209A EP 3899174 B1 EP3899174 B1 EP 3899174B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pawl
- coupling member
- latch
- locking mechanism
- drive element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008878 coupling Effects 0.000 claims description 113
- 238000010168 coupling process Methods 0.000 claims description 113
- 238000005859 coupling reaction Methods 0.000 claims description 113
- 230000007246 mechanism Effects 0.000 claims description 54
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 description 11
- 238000007789 sealing Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- 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
- E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
- E05B85/20—Bolts or detents
- E05B85/24—Bolts rotating about an axis
- E05B85/26—Cooperation between bolts and detents
Definitions
- the invention relates to a lock for a motor vehicle, in particular a tailgate lock, having a locking mechanism with a rotary latch and at least one pawl, a lock holder, the lock holder being engageable with the locking mechanism in at least one detent position, a drive element and a pivotable bearing point for the Pawl, wherein the pawl can be actuated by means of at least one coupling rod and with the drive element.
- locks or locking devices are used to close components that are movably attached to the motor vehicle, which locks hold the movable component in a closed position in order to enable the vehicle to be driven safely.
- These locking systems are increasingly being equipped with electric drives to enable the operator to open a side door, for example, conveniently.
- locking systems are not only used in side doors, but also in sliding doors, tailgates, hoods and/or covers, wherever moving components have to be kept in a secure position during operation of the motor vehicle.
- locking mechanisms consisting of a rotary latch and at least one pawl, which, in combination with a lock holder, enable the moving component to be secured. If, for example, a side door of a motor vehicle is closed, a rotary latch located in an open position engages with a lock holder, the relative movement between Lock holder and rotary latch the rotary latch is twisted and secured in a pre-locking or main locking position by means of the pawl.
- the side door or, for example, a tailgate is closed against the resistance of a seal, so that the locking mechanism counteracts sealing pressure.
- the EP 2 573 301 B1 describes the EP 2 573 301 B1 a locking system in which the pawl can at least partially follow an opening movement of the rotary latch.
- the locking mechanism can be opened electrically and the pawl is connected to the drive element via a lever chain. If the drive is actuated to open the locking mechanism, the pawl can follow the movement of the rotary latch at least in some areas and thus counteract the sealing pressure by reducing it.
- the lever chain has a variable-length lever that enables the locking mechanism to be unlocked with braking.
- the motor vehicle door lock has a drive element with which a coupling portion of the Pawl is coupled for movement and wherein the pawl is movable between the engaged position and a release position in which the pawl is disengaged from the ratchet so that the ratchet can move towards the open position.
- the drive element moves the pawl in such a way that the rotary latch, which is still in engagement with the pawl during this movement, moves in the direction of the open position.
- the object of the invention is to provide an improved motor vehicle lock and in particular a tailgate lock.
- a lock for a motor vehicle having a locking mechanism with a rotary latch and at least one pawl, a lock holder, the lock holder with the locking mechanism in at least one locking position can be brought into engagement, a drive element and a pivotable bearing point for the pawl, wherein the pawl can be actuated by means of at least one coupling rod and with the drive element, wherein the coupling rod interacts with the pawl by means of a coupling member having a transmission.
- the coupling member is also pivotally accommodated in a housing and/or a lock case of the motor vehicle lock, and the coupling member has a first bearing point for the coupling rod and a second bearing point for the pawl.
- the bearing points of the pawl and the coupling rod are arranged at different radii around the bearing point of the coupling member on the coupling member.
- the construction of the motor vehicle lock according to the invention now makes it possible to unlock the locking mechanism with little noise and to realize a continuous opening process.
- the constructive design allows locking positions to be achieved which enable the locking mechanism to be closed securely with the smallest possible space requirement.
- the use of a coupling element that incorporates a transmission ratio into the drive chain makes it possible to overcome the high closing forces that occur when the locking mechanism is opened and then to guide the rotary latch into an open position.
- the coupling member interacts with the pawl in such a way that the pawl is continuously released from the rotary latch via the coupling rod. Due to the continuous opening process, the actual tearing noise between the rotary latch and the pawl can be eliminated or at least reduced to a minimum.
- a motor vehicle lock When speaking of a motor vehicle lock within the meaning of the invention, this includes locks that are used in tailgates, but also in side doors or covers or, for example, a backrest of a motor vehicle.
- the locks can therefore be used where pivoting or sliding components are secured in one position.
- the motor vehicle lock includes a locking mechanism with a rotary latch and at least one pawl.
- the locking mechanism interacts with a lock holder which is usually arranged stationary on the motor vehicle, a relative movement between the locking mechanism and the lock holder causing a rotary movement of the rotary latch and the pawl securing the rotary latch in at least one latching position.
- the locking mechanism can have one or two pawls that interact with one another. A first pawl blocks the rotary latch in a latched position, with the second pawl securing the first pawl in the latched position. This locking mechanism with two pawls is mostly used when an opening moment occurs in the locking mechanism in the main locking position.
- the motor vehicle lock according to the invention is an electrically actuatable motor vehicle lock, with a drive element being provided with which the locking mechanism can be unlocked from the locking position.
- the drive element can be a manually operated Bowden cable or consist of at least one electric motor and a gear element connected downstream of the electric motor, the gear element interacting with the pawl in such a way that the pawl can be transferred from a latching position to an open position.
- the pawl is moved by means of the drive element in such a way that the pawl can be pivoted about a bearing point.
- the invention relates to a lock in which the pawl is accommodated in a pivotable bearing point and in which the pawl can be actuated by means of a coupling rod and by means of the drive element.
- pivotable bearing point means that the bearing point for the pawl itself is movably accommodated in the motor vehicle lock.
- the bearing point for the pawl is on a fixed radius and is accommodated in the motor vehicle lock by means of a coupling element.
- the coupling member forms a further transmission element with which a translation in the locking mechanism can be achieved.
- the pivotable bearing point enables the locking mechanism to be unlocked with little noise on the one hand and on the other hand that the pawl can be pivoted beyond a dead center of the coupling member, so that a closing moment is set in the locking mechanism.
- closing moment means here that the rotary latch exerts a moment on the pawl that prevents or prevents the locking mechanism from opening by itself.
- the coupling member is pivotally accommodated in a housing of the motor vehicle lock.
- the coupling member is designed as a disc-shaped element and preferably as a stamped part.
- the coupling member is preferably made of a steel material.
- the coupling member itself can be swiveled in the lock housing and/or in the lock case of the motor vehicle lock and, in particular, is accommodated on a bearing axle made of a steel material and preferably fastened by means of riveting.
- the pawl is pivotably mounted in the coupling member and can be pivoted or moved by means of the coupling member on a circular path about the bearing axis of the coupling member.
- the coupling member In addition to receiving the pawl, the coupling member has a further receiving point, in particular a bearing point for the coupling rod.
- the coupling member thus serves as a means for translating a torque introduced through the coupling rod into the coupling member, with the torque being able to be transmitted to the bearing point of the pawl.
- a different transmission ratio can be set with the arrangement of the bearing points on the coupling member.
- the bearing points of the pawl and the coupling rod are arranged at different radii around the bearing point of the coupling member on the coupling member.
- the radial distance between the bearing point of the pawl and the central axis of the bearing point of the coupling member is preferably less than the radial distance between the bearing point of the coupling lever and the center point of the bearing point of the coupling member.
- the bearing point of the coupling lever is further away from the center point of the bearing point of the coupling member than the bearing point of the pawl.
- the coupling member has an ejector for the pawl
- a further embodiment variant of the invention results.
- the coupling member moves the pawl, driven by the coupling rod, such that the ratchet moves toward an open position.
- the rotary latch is continuously moved out of the locking position, as a result of which the sealing pressure acting on the rotary latch can be reduced. If the pawl has been moved so far that no or only very little pressure acts on the pawl by means of the rotary latch, an ejector arranged on the coupling member can pivot or move the pawl out of the engagement area with the rotary latch.
- the coupling member has an ejector surface which can be brought into engagement with the pawl.
- the pawl In the now open or unlocked position of the locking mechanism, the pawl can now be kept disengaged from the rotary latch and/or kept disengaged from the rotary latch by means of a storage lever, which allows the rotary latch to be moved completely into the open position.
- the locking mechanism can be brought into a closed position, in particular into a main latching closed position, by means of the coupling member, a further embodiment variant of the invention results.
- the coupling member is accommodated pivotably in the motor vehicle lock, the coupling member being movable by means of the coupling rod.
- the coupling element can disengage the pawl from the rotary latch, there is also the possibility, after the locking mechanism has been opened and the rotary latch rotated into the open position, to pivot the bearing point of the pawl into an initial position in which the pawl is again in the open position Intervention with the rotary latch can be brought.
- the coupling element pivots the bearing point of the pawl after opening into an initial position in which a closing moment in the locking mechanism can preferably be set.
- the drive element has an eccentric receptacle for the coupling rod.
- the drive element comprises an electric drive, preferably a DC motor, on whose output shaft a worm, for example, can be mounted.
- the worm interacts with a worm wheel, as a result of which a gear stage for unlocking the locking mechanism and in particular for driving the coupling rod can be achieved.
- the coupling rod is preferably arranged eccentrically on the gear wheel of the transmission, so that a torque that is as optimized as possible can be introduced into the coupling rod and thus into the coupling member.
- the coupling rod can be arranged directly on the gear wheel or on a control and drive element.
- the control and drive element can be attached directly to the gear so that, for example, a bearing axle for the coupling rod can be mounted by means of the gear and/or the control and drive element.
- the gear wheel or worm wheel can also be designed in one piece with the control and drive element. Even if a worm gear was shown here as an embodiment of the invention, it is of course also conceivable to use other toothing geometries and gears as drives for the coupling rod.
- a further embodiment variant results when the drive element interacts with the pawl in such a way that the pawl can be transferred into an unlocking position by actuating the drive element in a single actuating direction.
- the drive and in particular the electric motor can preferably only be controlled in one drive direction, so that the drive element can be controlled in a cost-effective and simple manner.
- the use of limit switches and/or stops in the motor vehicle lock can be dispensed with. This results in a constructive and thus cost advantage through the use of a single direction of actuation for the drive elements.
- the coupling member can advantageously be tilted back and forth by means of the drive element.
- the coupling member is pivotally accommodated in the motor vehicle lock, with continuous rotary movement of the drive element by means of the coupling rod and the arrangement of the coupling rod in relation to the bearing point of the coupling member generating a tilting movement of the coupling member.
- the coupling member is moved back and forth, a reciprocal movement being referred to as the movement in which the pawl is disengaged from the ratchet.
- the forward movement, ie the backward movement of the coupling member is referred to as the movement in which the pawl is moved back into the starting position, so that the catch can be brought into engagement with the pawl again. Due to the structural design, a continuous movement of the drive element can thus be converted into a tilting movement of the coupling member.
- a safety lever serves to ensure that the pawl, which is moved into an unlocked position by means of the ejector, for example, remains in the open, ie unlocked position.
- the safety lever is called memory lever because the position of the pawl is saved. This can be advantageous if, for example, a load acts on a tailgate, such as a snow load, and the rotary latch cannot therefore be moved into an open position unhindered.
- the safety lever is pivotably arranged in the motor vehicle lock and preferably in the lock housing and/or lock case of the motor vehicle lock stored.
- the memory or safety lever is preferably made of plastic.
- the coupling member has a first bearing point for the coupling rod and a second bearing point for the pawl, this results in an embodiment variant that advantageously allows the transmission ratio to be influenced.
- a translation can be set in the coupling element, with which predeterminable, ie definable, moments for unlocking the locking mechanism can be set. This makes it possible, on the one hand, to achieve a space-saving design that at the same time provides a low-noise but powerful unlocking of the locking mechanism.
- a motor vehicle lock 1 constructed according to the invention is shown in a plan view of the locking mechanism 2 and in a partially open view.
- the locking mechanism 2 is shown in a main locking position, with the rotary latch 3 being held in the main locking position by means of a pawl 4, so that a lock holder, not shown, can hold a tailgate in a closed position, for example.
- the rotary latch 3 is pivotally mounted in a bearing point 5 in the lock housing 6 and/or a lock case.
- the pawl 4 is held in a pivotable bearing point 7 , the bearing point 7 in turn being mounted in a coupling member 8 .
- the coupling member 8 is pivotably mounted in the lock housing 6 and/or the lock case.
- the coupling member 8 performs a movement about the bearing point 9, a tilting movement about the bearing point 9 being performed, as explained in more detail below.
- the coupling member 8 itself is driven by a coupling rod 10 and an electric drive element 11 .
- the electric drive element 11 comprises an electric motor 12 on whose output shaft 13 a worm 14 is mounted.
- the worm 14 meshes with a worm wheel 15.
- the coupling rod 10 is by means of the worm wheel and a control and drive element 16 interacting with the worm wheel.
- the coupling rod 10 is driven by means of the control and drive element 16 .
- the coupling rod 10 is driven by means of the electric drive element 11, whereby the worm wheel 15 is moved clockwise in the direction of the arrow P1.
- the coupling rod 10 is pivotally accommodated in a bearing point 18 .
- the coupling rod 10 actuates the coupling member 8 via the bearing point 19, the coupling member 8 being pivoted or tilted about the bearing point 9 in the direction of the arrow P2.
- the movement of the coupling member 8 causes the rotary latch 3 to be lowered by means of the pawl 4 and the coupling member 10 .
- the figure 2 thus shows the beginning of the unlocking process of the locking mechanism 2.
- FIG. 3 the further opening process is shown.
- the coupling member 8 has been pivoted further in the direction of the arrow P2, as a result of which the catch 3 is able to rotate further in the opening direction, ie clockwise.
- An external force F which is preferably exerted on the rotary latch 3 by the lock holder 21 , acts on the rotary latch 3 .
- a torsion spring (not shown) is arranged on the rotary latch 3, which also spring-loads the rotary latch 3 in the opening direction, ie clockwise.
- the pivotable bearing point 7 has the effect that a continuous opening process takes place.
- a continuous opening process is characterized in that the force F from the lock holder 21 is continuously reduced.
- the highest load acts in the main detent position, according to the figure 1 , on the locking mechanism 2. Due to the continuous opening process, this maximum force is slowly, ie continuously, reduced, so that the locking mechanism can be unlocked with little noise. The so-called demolition bang can be prevented or eliminated.
- the figure 4 shows the fully open locking mechanism 2, whereby the lock holder 21 is free.
- the rotary latch 3 rests against a stop 23, which is preferably a rubber-elastic buffer element.
- the rotary latch 3 is held in this open position by means of the rotary latch spring.
- the pawl 4 has been moved out of the area of engagement with the rotary latch 3 by means of the ejector 22, so that an unhindered movement of the rotary latch in the direction of the open position is possible.
- a safety lever 24 is pivotably accommodated in the motor vehicle lock 1, the safety lever 24 holding the pawl 4 in the position defined by the figure 4 shown unlocked position.
- the safety lever 24 is also called the snow load lever, since due to a snow load acting on the tailgate, a force F opposing the force can be achieved, which can prevent the locking mechanism 2 from opening completely, i.e. moving the rotary latch 3 into the open position. If the rotary latch 3 is not moved completely into the open position, the pawl 4, in the case in which there is no safety lever 24, can engage with the rotary latch 3 again, so that an unintentional closing and/or falling into a e.g Pre-locking position of the locking mechanism 2 could take place.
- the safety lever 24 is accommodated in the motor vehicle lock 1 such that it can pivot about a bearing point 25 .
- the coupling member 8 has reached its bottom dead center position T in relation to the forces acting on the coupling lever 10 .
- the coupling member 8 is moved back into the starting position A again.
- the worm wheel 15 performs a movement in the direction of the arrow P1, that is, the worm wheel is only moved clockwise in the direction of the arrow P1.
- the coupling member 8, on the other hand, is moved clockwise in the direction of the arrow P2 until the locking mechanism 2 is fully opened, after which moving the coupling member 8 back moves it in the direction of the arrow P3, so that the coupling member 8 is referred to as a back and forth movement or a tilting movement can be.
- the coupling member 8 is moved back into its starting position A, with an upper dead center position TO being passed in relation to the forces acting on the pawl.
- the top dead center position TO is exceeded, the pawl 4 with its bearing point 7 is aligned with the bearing point 9 of the coupling member 8, which generates a closing moment in the locking mechanism 2.
- the locking mechanism 2 pushes into the closed position, as a result of which a maximum of security with regard to the closed position of the motor vehicle lock can be achieved.
- the safety lever 24 is released from the pawl 4 , as a result of which the pawl 4 comes into contact with the rotary latch 3 .
- the motor vehicle lock 1 can now be locked again by interacting with the lock holder 21 .
- the construction of the motor vehicle lock 1 according to the invention creates the possibility of providing an improved motor vehicle lock 1 that meets the highest requirements in terms of noise behavior and space requirements.
Description
Die Erfindung betrifft ein Schloss für ein Kraftfahrzeug, insbesondere ein Heckklappenschloss, aufweisend ein Gesperre mit einer Drehfalle und mindestens einer Sperrklinke, einem Schlosshalter, wobei der Schlosshalter mit dem Gesperre in mindestens einer Raststellung in Eingriff bringbar ist, einem Antriebselement und einer schwenkbaren Lagerstelle für die Sperrklinke, wobei die Sperrklinke mittels zumindest einer Kopplungsstange und mit dem Antriebselement betätigbar ist.The invention relates to a lock for a motor vehicle, in particular a tailgate lock, having a locking mechanism with a rotary latch and at least one pawl, a lock holder, the lock holder being engageable with the locking mechanism in at least one detent position, a drive element and a pivotable bearing point for the Pawl, wherein the pawl can be actuated by means of at least one coupling rod and with the drive element.
Um die Handhabung und das Geräuschverhalten für einen Bediener eines Kraftfahrzeugs zu erleichtern und beeinflussen zu können, werden mehr und mehr elektrisch unterstützte Aggregate in Kraftfahrzeugen eingebaut. So kommen zum Schließen von beweglich am Kraftfahrzeug befestigten Bauteilen Schlösser oder Schließvorrichtungen zum Einsatz, die das bewegliche Bauteil in einer Schließposition halten, um ein sicheres Führen des Fahrzeugs zu ermöglichen. Diese Schließsysteme werden verstärkt mit elektrischen Antrieben ausgestattet, um ein für den Bediener komfortables Öffnen zum Beispiel einer Seitentür zu ermöglichen. Schließsysteme werden aber nicht nur in Seitentüren, sondern auch in Schiebetüren, Heckklappen, Hauben und/oder Abdeckungen eingesetzt, eben überall dort, wo bewegliche Bauteile in einer gesicherten Position während des Betriebs des Kraftfahrzeugs gehalten werden müssen.In order to facilitate and be able to influence the handling and the noise behavior for an operator of a motor vehicle, more and more electrically assisted units are installed in motor vehicles. For example, locks or locking devices are used to close components that are movably attached to the motor vehicle, which locks hold the movable component in a closed position in order to enable the vehicle to be driven safely. These locking systems are increasingly being equipped with electric drives to enable the operator to open a side door, for example, conveniently. However, locking systems are not only used in side doors, but also in sliding doors, tailgates, hoods and/or covers, wherever moving components have to be kept in a secure position during operation of the motor vehicle.
In den Schlössern oder Schließsystemen kommen Gesperre zum Einsatz, bestehend aus einer Drehfalle und mindestens einer Sperrklinke, die im Zusammenspiel mit einem Schlosshalter ein Sichern des beweglichen Bauteils ermöglichen. Wird beispielsweise eine Seitentür eines Kraftfahrzeugs geschlossen, so gelangt eine in einer Offenstellung befindliche Drehfalle mit einem Schlosshalter in Eingriff, wobei durch die Relativbewegung zwischen Schlosshalter und Drehfalle die Drehfalle verdreht wird und in einer Vorrast- oder Hauptrastposition mittels der Sperrklinke gesichert wird. Das Schließen der Seitentür oder beispielsweise einer Heckklappe geschieht dabei gegen den Widerstand einer Dichtung, so dass das Gesperre einem Dichtungsdruck entgegenwirkt.In the locks or locking systems, locking mechanisms are used, consisting of a rotary latch and at least one pawl, which, in combination with a lock holder, enable the moving component to be secured. If, for example, a side door of a motor vehicle is closed, a rotary latch located in an open position engages with a lock holder, the relative movement between Lock holder and rotary latch the rotary latch is twisted and secured in a pre-locking or main locking position by means of the pawl. The side door or, for example, a tailgate is closed against the resistance of a seal, so that the locking mechanism counteracts sealing pressure.
Um ein sicheres, dichtendes und geräuschreduziertes Inneres eines Kraftfahrzeugs zu erzielen, können diese Dichtungsdrücke eine hohe Kraft auf den Schlosshalter und das Gesperre ausüben. Wird nun das Gesperre entsperrt, das heißt die Sperrklinke von der Drehfalle gelöst, so kommt es zu einem Lösen der Sperrklinke aus dem Eingriffsbereich mit der Drehfalle, was wiederum mit einem Öffnungsgeräusch verbunden ist. Um das Öffnungsgeräusch zu beeinflussen, sind verschiedene Lösungen aus dem Stand der Technik bekannt geworden.In order to achieve a safe, sealed and noise-reduced interior of a motor vehicle, these sealing pressures can exert a high force on the lock holder and the ratchet. If the locking mechanism is now unlocked, that is to say the pawl is released from the rotary latch, the pawl is released from the area of engagement with the rotary latch, which in turn is associated with an opening noise. In order to influence the opening noise, various solutions from the prior art have become known.
So beschreibt beispielsweise die
Aus der
Die aus dem Stand der Technik bekannten Lösungen sind zum Teil konstruktiv aufwändig und bedingen einen hohen Platzbedarf im Kraftfahrzeugschloss, der nicht in allen Fällen gegeben ist. Hier setzt die Erfindung an.Some of the solutions known from the prior art are structurally complex and require a large amount of space in the motor vehicle lock, which is not always the case. This is where the invention comes in.
Aufgabe der Erfindung ist es, ein verbessertes Kraftfahrzeugschloss und insbesondere ein Heckklappenschloss bereitzustellen. Darüber hinaus ist es Aufgabe der Erfindung, ein geräuscharmes Entsperren zu realisieren, wobei ein konstruktiv einfacher, platzsparender und kostengünstiger Aufbau zu berücksichtigen ist.The object of the invention is to provide an improved motor vehicle lock and in particular a tailgate lock. In addition, it is the object of the invention to realize a low-noise unlocking, in which case a structurally simple, space-saving and cost-effective structure must be taken into account.
Die Lösung der Aufgabe erfolgt durch die Merkmale des unabhängigen Patentanspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben. Es wird darauf hingewiesen, dass die im Folgenden beschriebenen Ausführungsbeispiele nicht beschränkend sind, vielmehr sind beliebige Variationsmöglichkeiten der in der Beschreibung und den Unteransprüchen beschriebenen Merkmale möglich.The object is achieved by the features of
Gemäß dem Patentanspruch 1 wird die Aufgabe der Erfindung dadurch gelöst, dass ein Schloss für ein Kraftfahrzeug, insbesondere ein Heckklappenschloss, bereitgestellt wird, aufweisend ein Gesperre mit einer Drehfalle und mindestens einer Sperrklinke, einem Schlosshalter, wobei der Schlosshalter mit dem Gesperre in mindestens einer Raststellung in Eingriff bringbar ist, einem Antriebselement und einer schwenkbaren Lagerstelle für die Sperrklinke, wobei die Sperrklinke mittels zumindest einer Kopplungsstange und mit dem Antriebselement betätigbar ist, wobei die Kopplungsstange mittels eines eine Übersetzung aufweisenden Kupplungsglieds mit der Sperrklinke zusammenwirkt. Das Kupplungsglied ist weiterhin schwenkbar in einem Gehäuse und/oder einem Schlosskasten des Kraftfahrzeugschlosses aufgenommen, und das Kupplungsglied weist eine erste Lagerstelle für die Kopplungsstange und eine zweite Lagerstelle für die Sperrklinke auf. Erfindungsgemäß sind die Lagerstellen der Sperrklinke und der Kupplungsstange auf unterschiedlichen Radien um die Lagerstelle des Kupplungsglieds auf dem Kupplungsglied angeordnet.According to
Durch den erfindungsgemäßen Aufbau des Kraftfahrzeugschlosses ist nun die Möglichkeit geschaffen, ein geräuscharmes Entsperren des Gesperres und einen kontinuierlichen Öffnungsprozess zu realisieren. Insbesondere lassen sich durch den konstruktiven Aufbau Raststellungen erzielen, die ein sicheres Schließen des Gesperres mit geringstmöglichem Platzbedarf ermöglichen. Insbesondere der Einsatz eines Kupplungsglieds, das ein Übersetzungsverhältnis mit in die Antriebskette einbindet, ermöglicht es hierbei, die beim Öffnen des Gesperres entstehenden hohen Schließkräfte zu überwinden und anschließend ein Führen der Drehfalle in eine Offenstellungsposition hinein zu realisieren. Dabei wirkt das Kupplungsglied derart mit der Sperrklinke zusammen, dass über die Kopplungsstange die Sperrklinke kontinuierlich von der Drehfalle gelöst wird. Durch den kontinuierlichen Öffnungsprozess kann das eigentliche Abreißgeräusch zwischen Drehfalle und Sperrklinke eliminiert werden oder zumindest auf ein Minimum reduziert werden.The construction of the motor vehicle lock according to the invention now makes it possible to unlock the locking mechanism with little noise and to realize a continuous opening process. In particular, the constructive design allows locking positions to be achieved which enable the locking mechanism to be closed securely with the smallest possible space requirement. In particular, the use of a coupling element that incorporates a transmission ratio into the drive chain makes it possible to overcome the high closing forces that occur when the locking mechanism is opened and then to guide the rotary latch into an open position. The coupling member interacts with the pawl in such a way that the pawl is continuously released from the rotary latch via the coupling rod. Due to the continuous opening process, the actual tearing noise between the rotary latch and the pawl can be eliminated or at least reduced to a minimum.
Wird im Sinne der Erfindung von einem Kraftfahrzeugschloss gesprochen, so sind dabei solche Schlösser umfasst, die in Heckklappen, aber auch in Seitentüren oder Abdeckungen oder zum Beispiel einer Rückenlehne eines Kraftfahrzeugs zum Einsatz kommen. Die Schlösser können somit dort eingesetzt werden, wo schwenkbeweglich oder verschieblich gelagerte Bauteile in einer Position gesichert werden.When speaking of a motor vehicle lock within the meaning of the invention, this includes locks that are used in tailgates, but also in side doors or covers or, for example, a backrest of a motor vehicle. The locks can therefore be used where pivoting or sliding components are secured in one position.
Das Kraftfahrzeugschloss umfasst dabei ein Gesperre mit einer Drehfalle und mindestens einer Sperrklinke. Das Gesperre wirkt mit einem zumeist ortsfest am Kraftfahrzeug angeordneten Schlosshalter zusammen, wobei es durch eine Relativbewegung zwischen Gesperre und Schlosshalter zu einer Drehbewegung der Drehfalle kommt und die Sperrklinke die Drehfalle in zumindest einer Rastposition sichert. Dabei sind Gesperre bekannt, die mit einer Vorrast und einer Hauptrast ausgestattet sind, oder Gesperre, die lediglich eine Hauptrastposition aufweisen. Das Gesperre kann eine oder zwei Sperrklinken aufweisen, die miteinander zusammenwirken. Eine erste Sperrklinke blockiert dabei die Drehfalle in einer Rastposition, wobei die zweite Sperrklinke die erste Sperrklinke in der Rastposition sichert. Diese Gesperre mit zwei Sperrklinken kommen zumeist dann zum Einsatz, wenn sich in der Hauptrastposition ein öffnendes Moment im Gesperre einstellt.The motor vehicle lock includes a locking mechanism with a rotary latch and at least one pawl. The locking mechanism interacts with a lock holder which is usually arranged stationary on the motor vehicle, a relative movement between the locking mechanism and the lock holder causing a rotary movement of the rotary latch and the pawl securing the rotary latch in at least one latching position. There are known locking mechanisms with a Are equipped first position and a main position, or ratchet, which only have a main position. The locking mechanism can have one or two pawls that interact with one another. A first pawl blocks the rotary latch in a latched position, with the second pawl securing the first pawl in the latched position. This locking mechanism with two pawls is mostly used when an opening moment occurs in the locking mechanism in the main locking position.
Bei dem erfindungsgemäßen Kraftfahrzeugschloss handelt es sich um ein elektrisch betätigbares Kraftfahrzeugschloss, wobei ein Antriebselement vorgesehen ist, mit dem das Gesperre aus der Rastposition heraus entsperrbar ist. Das Antriebselement kann dabei ein manueller zu betätigender Bowdenzug sein oder aus zumindest einem Elektromotor und einem dem Elektromotor nachgeschalteten Getriebeelement bestehen, wobei das Getriebeelement mit der Sperrklinke derart zusammenwirkt, dass die Sperrklinke von einer Rastposition in eine Öffnungsposition überführbar ist. Die Sperrklinke wird dabei mittels des Antriebselements derart bewegt, dass die Sperrklinke um eine Lagerstelle herum verschwenkbar ist. Die Erfindung bezieht sich auf ein Schloss, in der die Sperrklinke in einer schwenkbaren Lagerstelle aufgenommen ist und bei dem die Sperrklinke mittels einer Kopplungsstange und mittels des Antriebselements betätigbar ist. Schwenkbare Lagerstelle bedeutet hierbei, dass die Lagerstelle für die Sperrklinke selbst bewegbar im Kraftfahrzeugschloss aufgenommen ist. Die Lagerstelle für die Sperrklinke ist auf einem festen Radius und mittels eines Kupplungsglieds im Kraftfahrzeugschloss aufgenommen. Das Kupplungsglied bildet dabei ein weiteres Getriebeelement auf, mit dem eine Übersetzung im Gesperre erzielbar ist. Die schwenkbare Lagerstelle ermöglicht insbesondere durch die übersetzende Aufnahme, dass einerseits ein geräuscharmes Entsperren des Gesperres ermöglicht wird und andererseits, dass die Sperrklinke über einen Totpunkt des Kupplungsglieds hinaus verschwenkt werden kann, so dass sich ein schließendes Moment im Gesperre einstellt. Schließendes Moment meint hierbei, dass die Drehfalle ein Moment auf die Sperrklinke ausübt, das ein selbstständiges Öffnen des Gesperres verhindert bzw. unterbindet.The motor vehicle lock according to the invention is an electrically actuatable motor vehicle lock, with a drive element being provided with which the locking mechanism can be unlocked from the locking position. The drive element can be a manually operated Bowden cable or consist of at least one electric motor and a gear element connected downstream of the electric motor, the gear element interacting with the pawl in such a way that the pawl can be transferred from a latching position to an open position. The pawl is moved by means of the drive element in such a way that the pawl can be pivoted about a bearing point. The invention relates to a lock in which the pawl is accommodated in a pivotable bearing point and in which the pawl can be actuated by means of a coupling rod and by means of the drive element. In this context, pivotable bearing point means that the bearing point for the pawl itself is movably accommodated in the motor vehicle lock. The bearing point for the pawl is on a fixed radius and is accommodated in the motor vehicle lock by means of a coupling element. The coupling member forms a further transmission element with which a translation in the locking mechanism can be achieved. The pivotable bearing point enables the locking mechanism to be unlocked with little noise on the one hand and on the other hand that the pawl can be pivoted beyond a dead center of the coupling member, so that a closing moment is set in the locking mechanism. closing moment means here that the rotary latch exerts a moment on the pawl that prevents or prevents the locking mechanism from opening by itself.
Gemäß der Erfindung ist das Kupplungsglied schwenkbar in einem Gehäuse des Kraftfahrzeugschlosses aufgenommen. Das Kupplungsglied ist als scheibenförmiges Element und vorzugsweise als Stanzteil ausgebildet. Das Kupplungsglied besteht bevorzugt aus einem Stahlwerkstoff. Das Kupplungsglied selbst ist im Schlossgehäuse und/oder im Schlosskasten des Kraftfahrzeugschlosses schwenkbar und insbesondere auf einer aus einem Stahlwerkstoff hergestellten Lagerachse aufgenommen und bevorzugt mittels eines Vernietens befestigt. Die Sperrklinke wiederum ist im Kupplungsglied schwenkbar gelagert und kann mittels des Kupplungsglieds auf einer Kreisbahn um die Lagerachse des Kupplungsglieds verschwenkt bzw. bewegt werden. Neben der Aufnahme der Sperrklinke weist das Kupplungsglied eine weitere Aufnahmestelle, insbesondere eine Lagerstelle für die Kopplungsstange auf. Somit dient das Kupplungsglied als Mittel zur Übersetzung einer durch die Kopplungsstange in das Kupplungsglied eingeleiteten Drehmoments, wobei das Drehmoment auf die Lagerstelle der Sperrklinke übertragbar ist. Je nach Ausgestaltungsvariante des Schlosses und den entsprechenden Anforderungen kann mit der Anordnung der Lagerstellen auf dem Kupplungsglied ein unterschiedliches Übersetzungsverhältnis eingestellt werden. Erfindungsgemäß sind die Lagerstellen der Sperrklinke und der Kopplungsstange auf unterschiedlichen Radien um die Lagerstelle des Kupplungsglieds auf dem Kupplungsglied angeordnet. Bevorzugt weist der radiale Abstand der Lagerstelle der Sperrklinke einen geringeren Abstand zur Mittelachse der Lagerstelle des Kupplungsglieds auf als der radiale Abstand der Lagerstelle des Kopplungshebels zum Mittelpunkt der Lagerstelle des Kupplungsglieds. Mit anderen Worten die Lagerstelle des Kopplungshebels ist weiter vom Mittelpunkt der Lagerstelle des Kupplungsglieds entfernt als die Lagerstelle der Sperrklinke.According to the invention, the coupling member is pivotally accommodated in a housing of the motor vehicle lock. The coupling member is designed as a disc-shaped element and preferably as a stamped part. The coupling member is preferably made of a steel material. The coupling member itself can be swiveled in the lock housing and/or in the lock case of the motor vehicle lock and, in particular, is accommodated on a bearing axle made of a steel material and preferably fastened by means of riveting. The pawl, in turn, is pivotably mounted in the coupling member and can be pivoted or moved by means of the coupling member on a circular path about the bearing axis of the coupling member. In addition to receiving the pawl, the coupling member has a further receiving point, in particular a bearing point for the coupling rod. The coupling member thus serves as a means for translating a torque introduced through the coupling rod into the coupling member, with the torque being able to be transmitted to the bearing point of the pawl. Depending on the design variant of the lock and the corresponding requirements, a different transmission ratio can be set with the arrangement of the bearing points on the coupling member. According to the invention, the bearing points of the pawl and the coupling rod are arranged at different radii around the bearing point of the coupling member on the coupling member. The radial distance between the bearing point of the pawl and the central axis of the bearing point of the coupling member is preferably less than the radial distance between the bearing point of the coupling lever and the center point of the bearing point of the coupling member. In other words, the bearing point of the coupling lever is further away from the center point of the bearing point of the coupling member than the bearing point of the pawl.
Weist das Kupplungsglied einen Auswerfer für die Sperrklinke auf, so ergibt sich eine weitere Ausgestaltungsvariante der Erfindung. Das Kupplungsglied bewegt die Sperrklinke, angetrieben durch die Kopplungsstange, derart, dass sich die Drehfalle zu einer Öffnungsstellung hin bewegt. Durch das Bewegen der Sperrklinke auf dem Radius um die Lagerstelle des Kupplungsglieds herum wird die Drehfalle kontinuierlich aus der Rastposition herausbewegt, wodurch ein Abbau des Dichtungsdrucks, der auf die Drehfalle wirkt, erzielbar ist. Ist die Sperrklinke so weit bewegt worden, dass kein oder nur noch ein sehr geringer Druck mittels der Drehfalle auf die Sperrklinke wirkt, kann ein am Kupplungsglied angeordneter Auswerfer die Sperrklinke aus dem Eingriffsbereich mit der Drehfalle heraus verschwenken bzw. bewegen. Dazu weist das Kupplungsglied eine Auswerferfläche auf, die mit der Sperrklinke in Eingriff bringbar ist. In der nun geöffneten bzw. entsperrten Stellung des Gesperres kann die Sperrklinke nun außer Eingriff mit der Drehfalle gehalten werden und/oder mittels eines Speicherhebels außer Eingriff mit der Drehfalle gehalten werden, wodurch ein vollständiges Bewegen der Drehfalle in die Öffnungsstellung ermöglichbar ist.If the coupling member has an ejector for the pawl, a further embodiment variant of the invention results. The coupling member moves the pawl, driven by the coupling rod, such that the ratchet moves toward an open position. By moving the pawl on the radius around the bearing point of the coupling member, the rotary latch is continuously moved out of the locking position, as a result of which the sealing pressure acting on the rotary latch can be reduced. If the pawl has been moved so far that no or only very little pressure acts on the pawl by means of the rotary latch, an ejector arranged on the coupling member can pivot or move the pawl out of the engagement area with the rotary latch. For this purpose, the coupling member has an ejector surface which can be brought into engagement with the pawl. In the now open or unlocked position of the locking mechanism, the pawl can now be kept disengaged from the rotary latch and/or kept disengaged from the rotary latch by means of a storage lever, which allows the rotary latch to be moved completely into the open position.
Ist das Gesperre mittels des Kupplungsglieds in eine Schließlage, insbesondere in eine Hauptrastschließlage, bringbar, so ergibt sich eine weitere Ausgestaltungsvariante der Erfindung. Das Kupplungsglied ist schwenkbar im Kraftfahrzeugschloss aufgenommen, wobei das Kupplungsglied mittels der Kopplungsstange bewegbar ist. Wie das Kupplungsglied die Sperrklinke außer Eingriff mit der Drehfalle bringen kann, so besteht auch die Möglichkeit, die Sperrklinke nach einem Öffnen des Gesperres und einem Verdrehen der Drehfalle in die Öffnungsstellung den Lagerpunkt der Sperrklinke in eine Ausgangslage zu verschwenken, in der die Sperrklinke erneut in Eingriff mit der Drehfalle bringbar ist. Dazu verschwenkt das Kupplungsglied die Lagerstelle der Sperrklinke nach einem Öffnen in eine Ausgangslage, in der bevorzugt ein schließendes Moment im Gesperre einstellbar ist.If the locking mechanism can be brought into a closed position, in particular into a main latching closed position, by means of the coupling member, a further embodiment variant of the invention results. The coupling member is accommodated pivotably in the motor vehicle lock, the coupling member being movable by means of the coupling rod. Just as the coupling element can disengage the pawl from the rotary latch, there is also the possibility, after the locking mechanism has been opened and the rotary latch rotated into the open position, to pivot the bearing point of the pawl into an initial position in which the pawl is again in the open position Intervention with the rotary latch can be brought. For this purpose, the coupling element pivots the bearing point of the pawl after opening into an initial position in which a closing moment in the locking mechanism can preferably be set.
In einer Ausgestaltungsvariante weist das Antriebselement eine exzentrische Aufnahme für die Kopplungsstange auf. Das Antriebselement umfasst in einer bevorzugten Ausführungsform einen elektrischen Antrieb, bevorzugt einen Gleichstrommotor, auf dessen Abtriebswelle zum Beispiel eine Schnecke montierbar ist. Die Schnecke wirkt dabei mit einem Schneckenrad zusammen, wodurch eine Getriebestufe zum Entsperren des Gesperres und insbesondere zum Antreiben der Kopplungsstange erzielbar ist. Bevorzugt ist die Kopplungsstange exzentrisch am Zahnrad des Getriebes angeordnet, so dass ein möglichst optimiertes Moment in die Kopplungsstange und somit das Kupplungsglied einleitbar ist. Die Kopplungsstange kann unmittelbar am Zahnrad oder an einem Steuer- und Antriebselement angeordnet sein. Das Steuer- und Antriebselement kann dabei unmittelbar am Zahnrad befestigt sein, so dass beispielsweise eine Lagerachse für die Kopplungsstange mittels des Zahnrads und/oder des Steuer- und Antriebselements lagerbar ist. Das Zahnrad bzw. Schneckenrad kann dabei auch einstückig mit dem Steuer- und Antriebselement ausgebildet sein. Auch wenn hier bevorzugt ein Schneckenradgetriebe als eine Ausführungsform der Erfindung aufgezeigt wurde, so ist es natürlich ebenfalls vorstellbar, andere Verzahnungsgeometrien und Zahnräder als Antriebe für die Kopplungsstange einzusetzen.In one embodiment variant, the drive element has an eccentric receptacle for the coupling rod. In a preferred embodiment, the drive element comprises an electric drive, preferably a DC motor, on whose output shaft a worm, for example, can be mounted. The worm interacts with a worm wheel, as a result of which a gear stage for unlocking the locking mechanism and in particular for driving the coupling rod can be achieved. The coupling rod is preferably arranged eccentrically on the gear wheel of the transmission, so that a torque that is as optimized as possible can be introduced into the coupling rod and thus into the coupling member. The coupling rod can be arranged directly on the gear wheel or on a control and drive element. The control and drive element can be attached directly to the gear so that, for example, a bearing axle for the coupling rod can be mounted by means of the gear and/or the control and drive element. The gear wheel or worm wheel can also be designed in one piece with the control and drive element. Even if a worm gear was shown here as an embodiment of the invention, it is of course also conceivable to use other toothing geometries and gears as drives for the coupling rod.
Eine weitere Ausgestaltungsvariante ergibt sich dann, wenn das Antriebselement derart mit der Sperrklinke zusammenwirkt, dass die Sperrklinke mittels einer Betätigung des Antriebselements in eine einzige Betätigungsrichtung in eine entsperrende Stellung überführbar ist. Bevorzugt ist der Antrieb und insbesondere der Elektromotor lediglich in eine Antriebsrichtung ansteuerbar, so dass eine kostengünstige und einfache Steuerung des Antriebselements ermöglichbar ist. Insbesondere kann auf den Einsatz von Endlagenschaltern und/oder Anschlägen im Kraftfahrzeugschloss verzichtet werden. Somit ergibt sich ein konstruktiv und somit Kostenvorteil durch den Einsatz einer einzigen Betätigungsrichtung für die Antriebselemente.A further embodiment variant results when the drive element interacts with the pawl in such a way that the pawl can be transferred into an unlocking position by actuating the drive element in a single actuating direction. The drive and in particular the electric motor can preferably only be controlled in one drive direction, so that the drive element can be controlled in a cost-effective and simple manner. In particular, the use of limit switches and/or stops in the motor vehicle lock can be dispensed with. This results in a constructive and thus cost advantage through the use of a single direction of actuation for the drive elements.
In vorteilhafter Weise ist das Kupplungsglied mittels des Antriebselements hin und her kippbar. Das Kupplungsglied ist schwenkbar im Kraftfahrzeugschloss aufgenommen, wobei eine kontinuierliche Drehbewegung des Antriebselements mittels der Kopplungsstange und der Anordnung der Kopplungsstange in Bezug auf die Lagerstelle des Kupplungsglieds eine Kippbewegung des Kupplungsglieds erzeugt. Das Kupplungsglied wird hin und her bewegt, wobei eine Hinbewegung als die Bewegung bezeichenbar ist, in der die Sperrklinke außer Eingriff mit der Drehfalle gebracht wird. Die Herbewegung, das heißt die Zurückbewegung des Kupplungsglieds wird dabei als die Bewegung bezeichnet, in der die Sperrklinke wieder in die Ausgangslage zurückbewegt wird, so dass die Drehfalle erneut mit der Sperrklinke in Eingriff bringbar ist. Durch den konstruktiven Aufbau kann somit eine kontinuierliche Bewegung des Antriebselements in eine Kippbewegung des Kupplungsglieds überführt werden.The coupling member can advantageously be tilted back and forth by means of the drive element. The coupling member is pivotally accommodated in the motor vehicle lock, with continuous rotary movement of the drive element by means of the coupling rod and the arrangement of the coupling rod in relation to the bearing point of the coupling member generating a tilting movement of the coupling member. The coupling member is moved back and forth, a reciprocal movement being referred to as the movement in which the pawl is disengaged from the ratchet. The forward movement, ie the backward movement of the coupling member is referred to as the movement in which the pawl is moved back into the starting position, so that the catch can be brought into engagement with the pawl again. Due to the structural design, a continuous movement of the drive element can thus be converted into a tilting movement of the coupling member.
Ist ein Sicherungshebel vorgesehen und ist der Sicherungshebel in einer entsperrten Stellung der Sperrklinke mit der Sperrklinke in Eingriff bringbar, so ergibt sich eine weitere Ausgestaltungsvariante der Erfindung. Ein Speicher oder Sicherungshebel dient dabei dazu, dass die zum Beispiel mittels des Auswerfers in eine entsperrte Position bewegte Sperrklinke in der geöffneten, das heißt entsperrten Position, verbleibt. Speicherhebel wird der Sicherungshebel deswegen genannt, weil die Lage der Sperrklinke gespeichert wird. Dies kann dann vorteilhaft sein, wenn beispielsweise eine Last auf eine Heckklappe wirkt, wie beispielsweise eine Schneelast, und somit die Drehfalle nicht ungehindert in eine Öffnungsstellung hinein bewegbar ist. In dieser nicht vollständig geöffneten Stellung der Drehfalle kann es vorkommen, dass die Sperrklinke zum Beispiel in eine Vorrast der Drehfalle erneut einfällt. Dieses erneute und ungewollte Einfallen der Sperrklinke in die Drehfalle wird mittels des Sicherungs- oder Speicherhebels verhindert. In vorteilhafter Weise ist der Sicherungshebel schwenkbar im Kraftfahrzeugschloss angeordnet und bevorzugt im Schlossgehäuse und/oder Schlosskasten des Kraftfahrzeugschlosses gelagert. Der Speicher oder Sicherungshebel ist dabei bevorzugt aus Kunststoff ausgebildet.If a safety lever is provided and if the safety lever can be brought into engagement with the pawl when the pawl is in an unlocked position, a further embodiment variant of the invention results. A memory or safety lever serves to ensure that the pawl, which is moved into an unlocked position by means of the ejector, for example, remains in the open, ie unlocked position. The safety lever is called memory lever because the position of the pawl is saved. This can be advantageous if, for example, a load acts on a tailgate, such as a snow load, and the rotary latch cannot therefore be moved into an open position unhindered. In this not fully open position of the rotary latch, it can happen that the locking pawl, for example, engages again in a pre-latch of the rotary latch. This renewed and unintentional dropping of the pawl into the catch is prevented by means of the safety or memory lever. Advantageously, the safety lever is pivotably arranged in the motor vehicle lock and preferably in the lock housing and/or lock case of the motor vehicle lock stored. The memory or safety lever is preferably made of plastic.
Weist das Kupplungsglied eine erste Lagerstelle für die Kopplungsstange und eine zweite Lagerstelle für die Sperrklinke auf, so ergibt sich eine Ausgestaltungsvariante, die in vorteilhafter Weise eine Beeinflussung des Übersetzungsverhältnisses ermöglicht. Hierdurch ist eine Übersetzung im Kupplungsglied einstellbar, mit der vorgebare, das heißt definierbare Momente zum Entsperren des Gesperres einstellbar sind. Hierdurch ist es einerseits möglich, einen platzsparenden Aufbau zu erzielen, der gleichzeitig ein geräuscharmes aber kraftvolles Entsperren des Gesperres zur Verfügung stellt. Nachfolgend wird die Erfindung unter Bezugnahme auf die anliegenden Zeichnungen anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Es gilt jedoch der Grundsatz, dass das Ausführungsbeispiel die Erfindung nicht beschränkt, sondern lediglich eine Ausführungsform darstellt.If the coupling member has a first bearing point for the coupling rod and a second bearing point for the pawl, this results in an embodiment variant that advantageously allows the transmission ratio to be influenced. In this way, a translation can be set in the coupling element, with which predeterminable, ie definable, moments for unlocking the locking mechanism can be set. This makes it possible, on the one hand, to achieve a space-saving design that at the same time provides a low-noise but powerful unlocking of the locking mechanism. The invention is explained in more detail below with reference to the accompanying drawings using a preferred exemplary embodiment. However, the principle applies that the exemplary embodiment does not limit the invention, but merely represents an embodiment.
Es zeigt:
- Fig. 1
- eine Draufsicht auf ein geöffnetes Heckklappenschloss in einer Hauptrastposition, wobei lediglich die zur Erläuterung der Erfindung bedeutsamen Schlossbestandteile wiedergegeben sind,
- Fig. 2
- die Aufsicht auf das Heckklappenschloss gemäß der
Fig. 1 , wobei die Sperrklinke mittels des Antriebselements, der Kopplungsstange und der schwenkbaren Lagerstelle aus der Hauptrastposition zumindest teilweise herausbewegt wurde, - Fig. 3
- zeigt den weiteren Öffnungsvorgang des Gesperres unter einer Bewegung der schwenkbaren Lagerstelle der Sperrklinke, wobei die schwenkbare Lagerstelle in Eingriff mit der Sperrklinke gelangt,
- Fig. 4
- zeigt die aus dem Eingriffsbereich mit der Drehfalle herausbewegte Sperrklinke und die Drehfalle in einer Offenstellung, und
- Fig. 5
- das geöffnete Gesperre und den Rückführvorgang der Sperrklinke in die Ausgangslage.
- 1
- a top view of an open tailgate lock in a main latching position, only the lock components that are important for explaining the invention being reproduced,
- 2
- the supervision of the tailgate lock according to the
1 , the pawl being at least partially moved out of the main locking position by means of the drive element, the coupling rod and the pivotable bearing point, - 3
- shows the further opening process of the locking mechanism with a movement of the pivotable bearing point of the pawl, the pivotable bearing point engaging with the pawl,
- 4
- shows the pawl moved out of the area of engagement with the rotary latch and the rotary latch in an open position, and
- figure 5
- the opened locking mechanism and the return process of the pawl to the starting position.
In der
Zum Öffnen des Gesperres 2 vollführt das Kupplungsglied 8 eine Bewegung um die Lagerstelle 9, wobei eine Kippbewegung um die Lagerstelle 9 vollzogen wird, wie im Weiteren näher erläutert. Das Kupplungsglied 8 selbst wird mittels einer Kopplungsstange 10 und einem elektrischen Antriebselement 11 angetrieben. Das elektrische Antriebselement 11 umfasst einen Elektromotor 12, an dessen Abtriebswelle 13 eine Schnecke 14 montiert ist. Die Schnecke 14 kämmt mit einem Schneckenrad 15. Die Kopplungsstange 10 wird mittels des Schneckenrads und einem mit dem Schneckenrad zusammenwirkenden Steuer- und Antriebselement 16 betätigt. Mittels des Steuer- und Antriebselements 16 wird einerseits die Kopplungsstange 10 angetrieben.To open the
In der
In der
Wie weiterhin aus der
Die
In der
Durch das vollständige Öffnen der Drehfalle 3 wird der Sicherungshebel 24 von der Sperrklinke 4 gelöst, wodurch die Sperrklinke 4 in Anlage mit der Drehfalle 3 gelangt. Nun kann ein erneutes Sperren des Kraftfahrzeugschlosses 1 durch ein Zusammenspiel mit dem Schlosshalter 21 erfolgen. Durch den erfindungsgemäßen Aufbau des Kraftfahrzeugschlosses 1 ist die Möglichkeit geschaffen, ein verbessertes Kraftfahrzeugschloss 1 bereitzustellen, das höchsten Anforderungen an ein Geräuschverhalten und einem Platzbedarf genügt.By completely opening the
- 11
- Kraftfahrzeugschlossmotor vehicle lock
- 22
- Gesperrelock
- 33
- Drehfallerotary latch
- 44
- Sperrklinkepawl
- 5, 6, 9, 18, 19, 255, 6, 9, 18, 19, 25
- Lagerstellestorage place
- 66
- Schlossgehäuselock case
- 88th
- Kupplungsgliedcoupling link
- 99
- Kopplungsstangecoupling rod
- 1111
- elektrisches Antriebselementelectric drive element
- 1212
- Elektromotorelectric motor
- 1313
- Abtriebswelleoutput shaft
- 1414
- SchneckeSnail
- 1515
- Schneckenradworm wheel
- 1616
- Steuer- und AntriebselementControl and drive element
- 1717
- Steuerkonturcontrol contour
- 2020
- Hauptrastmain rest
- 2121
- Schlosshalterlock holder
- 2222
- Auswerfer, AuswerferflächeEjector, ejector surface
- 2323
- Anschlagattack
- 2424
- Sicherungshebelsafety lever
- P1, P2, P3P1, P2, P3
- PfeilArrow
- Ff
- Kraftpower
- T, T0T, T0
- Totpunktlagedead center position
- AA
- Ausgangslageinitial position
Claims (8)
- Latch (1) for a motor vehicle, in particular a tailgate latch (1), comprising a locking mechanism (2) having a catch (3) and at least one pawl (4), a latch holder (21), it being possible for the latch holder (21) to be brought into engagement with the locking mechanism (2) in at least one ratchet position, a drive element (11) and a pivotable mounting point (7) for the pawl (4), it being possible for the pawl (4) to be actuated by means of at least one coupling rod (10) and by the drive element (11), in which the coupling rod (10) interacts with the pawl (4) by means of a coupling member (8) having a transmission, the coupling member (8) being pivotally received in a housing (6) and/or a latch case of the motor vehicle latch (1), the coupling member (8) having a first mounting point (19) for the coupling rod (10) and a second mounting point (7) for the pawl, characterized in that the mounting points of the pawl (4) and the coupling rod (10) are arranged on different radii around the mounting point of the coupling member (8) on the coupling member (8).
- Latch (1) according to claim 1, characterized in that the coupling member (8) has an ejector (22) for the pawl (4).
- Latch (1) according to either claim 1 or claim 2, characterized in that the locking mechanism (2) can be brought into a closed position (A), in particular into a main ratchet closed position (A), by means of the coupling member (8).
- Latch (1) according to any of claims 1 to 3, characterized in that the drive element (11) has an eccentric receptacle for the coupling rod (10).
- Latch (1) according to any of claims 1 to 4, characterized in that the drive element (11) interacts with the pawl (4) in such a way that the pawl (4) can be transferred into an unlatching position by means of an actuation of the drive element (11) in one single actuation direction (P1).
- Latch (1) according to any of claims 1 to 5, characterized in that the coupling member (8) can be tilted back and forth by means of the drive element (11).
- Latch (1) according to any of claims 1 to 6, characterized in that a securing lever (24) is provided and in that the securing lever (24) can be brought into engagement with the pawl (4) in an unlatched position of the pawl (4).
- Latch (1) according to any of claims 1 to 7, characterized in that the pawl (4) can be transferred, by means of the coupling member (8), into a main ratchet position in which a closing torque acts in the locking mechanism (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018133301.3A DE102018133301A1 (en) | 2018-12-21 | 2018-12-21 | Lock for a motor vehicle |
PCT/DE2019/101052 WO2020125858A1 (en) | 2018-12-21 | 2019-12-06 | Lock for a motor vehicle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3899174A1 EP3899174A1 (en) | 2021-10-27 |
EP3899174B1 true EP3899174B1 (en) | 2022-08-31 |
Family
ID=69024073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19828209.7A Active EP3899174B1 (en) | 2018-12-21 | 2019-12-06 | Lock for a motor vehicle |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3899174B1 (en) |
JP (1) | JP7363005B2 (en) |
CN (1) | CN113195854B (en) |
DE (1) | DE102018133301A1 (en) |
WO (1) | WO2020125858A1 (en) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5613716A (en) | 1996-01-25 | 1997-03-25 | General Motors Corporation | Electronic vehicle door unlatch control |
DE19736445B4 (en) * | 1996-08-22 | 2006-06-08 | Asmo Co., Ltd., Kosai-shi | Türgliedverriegelungs- / unlocking |
DE10239734A1 (en) * | 2002-08-26 | 2004-03-11 | Brose Schließsysteme GmbH & Co.KG | Motor vehicle flap closure or the like |
DE102012107143A1 (en) * | 2012-08-03 | 2014-02-20 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Tailgate lock for motor vehicle, has a delay unit which is coupled to a rotary latch, according to movement speed of latch, for the release of closing element, and a pawl set in release position when the latch is out of engagement |
EP2573301B1 (en) | 2011-09-23 | 2017-05-03 | Huf Hülsbeck & Fürst GmbH & Co. KG | Rear lock for a motor vehicle |
DE102012102723A1 (en) | 2011-09-23 | 2013-03-28 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Motor vehicle door lock |
DE102012102724A1 (en) * | 2012-03-29 | 2013-10-02 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Motor vehicle door lock |
US10815700B2 (en) * | 2015-12-30 | 2020-10-27 | Inteva Products, Llc | Release actuator for latch |
US10890018B2 (en) * | 2016-07-26 | 2021-01-12 | Magna Closures Inc. | Double pull hood latch with interlock device |
-
2018
- 2018-12-21 DE DE102018133301.3A patent/DE102018133301A1/en active Pending
-
2019
- 2019-12-06 EP EP19828209.7A patent/EP3899174B1/en active Active
- 2019-12-06 JP JP2021535183A patent/JP7363005B2/en active Active
- 2019-12-06 CN CN201980084404.4A patent/CN113195854B/en active Active
- 2019-12-06 WO PCT/DE2019/101052 patent/WO2020125858A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102018133301A1 (en) | 2020-06-25 |
CN113195854A (en) | 2021-07-30 |
JP2022514327A (en) | 2022-02-10 |
WO2020125858A1 (en) | 2020-06-25 |
EP3899174A1 (en) | 2021-10-27 |
JP7363005B2 (en) | 2023-10-18 |
CN113195854B (en) | 2023-06-06 |
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