EP3194693B1 - Lock for a motor bonnet of a vehicle - Google Patents

Lock for a motor bonnet of a vehicle Download PDF

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Publication number
EP3194693B1
EP3194693B1 EP15762614.4A EP15762614A EP3194693B1 EP 3194693 B1 EP3194693 B1 EP 3194693B1 EP 15762614 A EP15762614 A EP 15762614A EP 3194693 B1 EP3194693 B1 EP 3194693B1
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EP
European Patent Office
Prior art keywords
lock
closed position
catch
hook
closing
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.)
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Application number
EP15762614.4A
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German (de)
French (fr)
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EP3194693A1 (en
Inventor
Ulrich Koestler
Anton Kieferl
Markus Springsklee
Walter Widl
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Bayerische Motoren Werke AG
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Bayerische Motoren Werke AG
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Publication of EP3194693A1 publication Critical patent/EP3194693A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
    • E05B77/08—Arrangements for protection of pedestrians
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/26—Cooperation between bolts and detents
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
    • E05B83/24—Locks for luggage compartments, car boot lids or car bonnets for car bonnets

Definitions

  • the invention relates to a lock for a movable from an open position to a closed position hood of a vehicle with a closing bar in the closed position of the hood retaining latch and a locking hook in the closed position locking pawl.
  • the invention further relates to a use of a lock for a movable from an open position to a closed position hood of a vehicle with a closing bar in the closed position retaining latch and a locking hook in the closed position locking pawl.
  • the lock has for this purpose a closing hook, by means of which when closing the body component, a striker caught and then retained in the closed position of the body component. So that the locking hook can not open unintentionally in the closed position, a pawl is provided, by means of which the locking hook is locked in the closed position. To open the body component then first the pawl must release the locking hook so that this below pivot and in turn can release the striker. In order for the striker to be moved out of the closing hook, it is known to provide an ejection lever on the lock.
  • a so-called Zuziehfunktion is known in which the lock is equipped with an actuator to which a Zuzieh signal can be given via a control unit.
  • the actuator By means of the actuator is then actively moved when closing the body component at the end of the closing movement of the locking hooks from a pre-closing position to a full-closing position.
  • the actuator can then actively move the closing hook into an open position.
  • the striker is forced out of the closing hook by means of the ejection lever.
  • the position of the lock is determined by means of a switch or sensor, and the closing hook is actively moved by an actuator in the direction of a closing movement as soon as the striker is caught in the closing hook.
  • the Zuziehweg this Zuziehsysteme for opening body parts is usually about 6 mm to 8 mm.
  • a generic lock of a vehicle is in the DE 10 2010 061 518 A1 described.
  • a lock for a movable from an open position in a closed position Moto hood of a vehicle is provided with a closing bar in the closed position of the hood retaining latch and a locking hook in the closed position locking pawl, wherein the pawl in the closing hook blocking the closed position of a pre-closing position is actively movable into a full-closing position.
  • the pawl according to the invention is preferably pivotally mounted on a bearing and the position of the bearing is adjustable by means of an eccentric.
  • the pawl so mounted can be changed or adjusted at its location by means of the eccentric in your position.
  • the eccentric has for this purpose two shaft sections whose shaft axes are arranged eccentrically to each other. One of the shaft sections forms the bearing shaft for the pawl, the other shaft section forms the support shaft for supporting the eccentric on a bearing shell of the lock according to the invention.
  • Such eccentric is preferably designed self-locking in the full-closed position.
  • the eccentric is thus inhibited in its mobility when it is in or near the full-close position of the hood.
  • the self-locking of the eccentric can be achieved in a simple manner, that this is in this position near its dead center of its rotation.
  • the two shaft sections mentioned are arranged one behind the other, viewed in cross section, in the pulling direction of the pulling force acting on the pawl.
  • an ejection lever for moving out the striker from the locking hook is further provided, which is not blocked in the closed position of the pawl.
  • the ejection lever is advantageously resiliently urged against the striker, so that he moves the striker from the locking hook, as soon as this is possible due to an opening movement of the closing hook.
  • the invention is also directed to a use of a lock for a bonnet of a vehicle which can be moved from an open position to a closed position, with a locking hook which retains a striker in the closed position and a locking catch which locks the striker in the closed position. wherein the pawl is actively moved from a pre-close position to a full-close position in the closed-loop locking position of the closure hook.
  • the pawl is actively moved from the pre-closing position to the fully-closed position after the engine hood has been manually closed.
  • the pawl is advantageously moved back from the full-closed position actively in the pre-closing position as soon as the hood is opened manually.
  • a mechanical operating element is preferably used for manual opening of the hood.
  • This control is advantageously a lever which is located in a passenger compartment of the vehicle and can be operated there by the driver of the vehicle. With the inventive movement of the pawl from the full-closing position to the pre-closing position, as soon as the manual opening, this lever can be actively relieved and thus facilitate manual opening.
  • the pawl according to the invention is advantageously moved from the full-closing position actively in the pre-closing position as soon as a pedestrian impact situation is detected on the hood.
  • active movement of the pawl to the lock of the invention the lock hook is released in the event of an accident immediately a certain amount, so that the hood can remove this certain piece of the remaining body.
  • the bonnet thus has more room to move and may be less damaged in a subsequent accident.
  • Such movement of the hood is also particularly advantageous for pedestrian impact protection, in which the hood is additionally actively spent in a flared guard position.
  • a lock 10 is shown in which a closing hook 14 is pivotally mounted on a support plate 12. With the locking hook 14, a striker 16 is hooked, on which there is a body component, not shown.
  • the body member is pivotally mounted on an associated body between an open position and a closed position, such as a bonnet or trunk lid, and can be retained by the lock 10 in the closed position on the body.
  • an ejector lever 18 is pivotally mounted on the support plate 12. Further, a pawl 20 is pivotally mounted on the support plate 12, by means of which the locking hook 14 can be locked with respect to its pivoting movement.
  • the closing hook 14 is articulated on a pivot axis 22 on the support plate 12 and has an outer hook portion 24 and an inner hook portion 26 with respect to this pivot axis 22. With the outer hook portion 24 of the striker 16 is captured and retained in the half-open state of the closing hook 14. With the inner hook portion 26 of the striker 16 is then taken and completely retained when the lock 10, as in 3 and 4 shown in its fully closed position.
  • the closing hook 14 has, at its edge region facing the pawl 20, a first nose portion 28 and a second nose portion 30, on which the pawl 20 can optionally hook behind and lock the closing hook 14 in the semi-closed position and in the closed position.
  • the ejection lever 18 is articulated by means of a pivot axis 32 on the support plate 12 on the opposite side of the lock hook 14 and has a discharge section 34. With this ejection section 34, the ejection lever 18 urges against the locking hook 16 located in the inner hook section 26. When the lock 10 is opened, the striker 16 is thereby forced out of the hook section 26, thus facilitating opening of the lock 10.
  • the pawl 20 is pivotably connected to the support plate 12 by means of an eccentric 36 which can be actively driven by an actuator (not shown).
  • the eccentric 36 on two opposite sides each have a shaft portion, namely on the side facing the pawl 20 a bearing shaft 38 and on the side facing the support plate 12 a support shaft 40.
  • the pawl 20 has a pawl portion 42 with which it hooks to the hook portion 26 when the lock 10 in the semi-closed Location is located. This blocking situation is provided in order to initially retain the body component on the body even if the lock 10 were opened unintentionally.

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  • Lock And Its Accessories (AREA)

Description

Die Erfindung betrifft ein Schloss für ein von einer Offen-Lage in eine Geschlossen-Lage bewegbare Motorhaube eines Fahrzeugs mit einem einen Schließbügel in der Geschlossen-Lage der Motorhaube zurückhaltenden Schließhaken und einer den Schließhaken in der Geschlossen-Lage sperrenden Sperrklinke. Die Erfindung betrifft ferner eine Verwendung eines Schlosses für ein von einer Offen-Lage in eine Geschlossen-Lage bewegbare Motorhaube eines Fahrzeugs mit einem einen Schließbügel in der Geschlossen-Lage zurückhaltenden Schließhaken und einer den Schließhaken in der Geschlossen-Lage sperrenden Sperrklinke.The invention relates to a lock for a movable from an open position to a closed position hood of a vehicle with a closing bar in the closed position of the hood retaining latch and a locking hook in the closed position locking pawl. The invention further relates to a use of a lock for a movable from an open position to a closed position hood of a vehicle with a closing bar in the closed position retaining latch and a locking hook in the closed position locking pawl.

Mit dem gattungsgemäßen Schloss soll es möglich sein, ein zu öffnendes Karosseriebauteil eines Fahrzeugs, wie insbesondere eine Motorhaube des Fahrzeugs in seiner Geschlossen-Lage an der zugehörigen Fahrzeugkarosserie zurückzuhalten. Das Schloss weist dazu einen Schließhaken auf, mittels dem beim Schließen des Karosseriebauteils ein Schließbügel eingefangen und dann nachfolgend in der Geschlossen-Lage des Karosseriebauteils zurückgehalten wird. Damit der Schließhaken sich in der Geschlossen-Lage nicht unbeabsichtigt öffnen kann, ist eine Sperrklinke vorgesehen, mittels dem der Schließhaken in der Geschlossen-Lage gesperrt wird. Zum Öffnen des Karosseriebauteils muss dann zunächst die Sperrklinke den Schließhaken freigeben, damit dieser nachfolgend schwenken und seinerseits den Schließbügel freigeben kann. Damit der Schließbügel dabei aus dem Schließhaken herausbewegt wird, ist es bekannt, an dem Schloss einen Auswurfhebel vorzusehen.With the generic lock, it should be possible to retain an openable body part of a vehicle, such as in particular a hood of the vehicle in its closed position on the associated vehicle body. The lock has for this purpose a closing hook, by means of which when closing the body component, a striker caught and then retained in the closed position of the body component. So that the locking hook can not open unintentionally in the closed position, a pawl is provided, by means of which the locking hook is locked in the closed position. To open the body component then first the pawl must release the locking hook so that this below pivot and in turn can release the striker. In order for the striker to be moved out of the closing hook, it is known to provide an ejection lever on the lock.

Für derartige Schlösser ist eine so genannte Zuziehfunktion bekannt, bei der das Schloss mit einem Aktuator ausgestattet ist, an den über ein Steuergerät ein Zuzieh-Signal gegeben werden kann. Mittels des Aktuators wird dann beim Schließen des Karosseriebauteils am Ende der Schließbewegung der Schließhaken aktiv von einer Vorschließ-Stellung in eine Vollschließ-Stellung bewegt. Mit dieser aktiven Bewegung des Schließhakens wird der in dem Schließhaken eingefangene Schließbügel an das Schloss herangezogen und auf diese Weise das Karosseriebauteil vollständig geschlossen. Zum Öffnen des Schlosses kann der Aktuator den Schließhaken dann auch wieder aktiv in eine Offen-Stellung bewegen. Zugleich wird mittels des Auswurfhebels der Schließbügel aus dem Schließhaken herausgedrängt.For such locks, a so-called Zuziehfunktion is known in which the lock is equipped with an actuator to which a Zuzieh signal can be given via a control unit. By means of the actuator is then actively moved when closing the body component at the end of the closing movement of the locking hooks from a pre-closing position to a full-closing position. With this active movement of the closing hook captured in the closing hook striker is used to the lock and closed in this way, the body part completely. In order to open the lock, the actuator can then actively move the closing hook into an open position. At the same time, the striker is forced out of the closing hook by means of the ejection lever.

Es ist auch bekannt nicht den Schließhaken aktiv zu bewegen, sondern den Schließbügel. Dazu wird die Lage des Schlosses mittels eines Schalters oder Sensors ermittelt und der Schließhaken von einem Aktuator in Richtung einer Zuziehbewegung aktiv bewegt, sobald der Schließbügel in dem Schließhaken gefangen ist.It is also known not to actively move the catch, but the striker. For this purpose, the position of the lock is determined by means of a switch or sensor, and the closing hook is actively moved by an actuator in the direction of a closing movement as soon as the striker is caught in the closing hook.

Der Zuziehweg dieser Zuziehsysteme für zu öffnende Karosseriebauteile beträgt in der Regel etwa 6 mm bis 8 mm.The Zuziehweg this Zuziehsysteme for opening body parts is usually about 6 mm to 8 mm.

Ferner zeigt die EP 2 573 300 A2 einen Kraftfahrzeugtürverschluss mit einer Drehfalle und einer Sperrklinke, die durch ein Antriebselement bewegbar ist.Furthermore, the shows EP 2 573 300 A2 a motor vehicle door lock with a rotary latch and a pawl which is movable by a drive element.

Darüber hinaus ist in der US 5 222 775 A ein elektrisch angetriebenes Schloss für eine Heckklappe gezeigt, das eine Drehfalle und eine Sperrklinke zum Drehen der Drehfalle aufweist.In addition, in the US 5 222 775 A an electrically powered lock for a tailgate having a catch and a pawl for rotating the catch.

Ferner ist in dem Dokument DE 101 14 065 A1 ein Türschloss beschrieben.Further, in the document DE 101 14 065 A1 a door lock described.

Bekannte Systeme mit bewegbarem Schließbügel weisen den Nachteil auf, dass zu dem Aktuator am Schließbügel eigens eine Verkabelung vorzusehen ist. Aktive Zuziehsysteme mit einem bewegbaren Schließhaken sind insofern verbesserungswürdig, als bei diesen das Karosseriebauteil beim Schließen "überworfen" werden kann. Dies bedeutet, dass der Schließhaken bereits durch ein sehr festes manuelles Schließen des Karosseriebauteils in seine Vollschließ-Stellung gebracht wird. Der Aktuator läuft dann hinter dieser Bewegung des Schließhakens hinterher. Mit diesem "Überwerfen" kann gegebenenfalls das Schloss, das Karosseriebauteil oder die umliegende Karosserie beschädigt werden.Known systems having a movable striker have the disadvantage that a wiring is to be provided for the actuator on the striker. Active closing systems with a movable closing hook are in need of improvement insofar as the body component can be "knocked over" during closing. This means that the closing hook is already brought into its full-closing position by a very firm manual closing of the body component. The actuator then runs behind this movement of the closing hook. If necessary, this "knock-over" can damage the lock, the body component or the surrounding bodywork.

Ein gattungsgemäßes Schloss eines Fahrzeugs ist in der DE 10 2010 061 518 A1 beschrieben.A generic lock of a vehicle is in the DE 10 2010 061 518 A1 described.

Es ist die Aufgabe der vorliegenden Erfindung ein Schloss für eine Motorhaube eines Fahrzeugs sowie eine Verwendung eines derartigen Schlosses zu schaffen, bei dem ein sogenanntes "Überwerfen" der Motorhaube unterbunden ist sowie ein Öffnen des Schlosses vereinfacht ist und gleichzeitig bei einer Unfallsituation ein gewisses Stück von einer restlichen Karosserie entfernbar ist.It is the object of the present invention to provide a lock for a hood of a vehicle and a use of such a lock in which a so-called "throwing over" of the hood is prevented and an opening of the lock is simplified and at the same time in an accident situation a certain piece of a remaining body is removable.

Erfindungsgemäß ist ein Schloss für ein von einer Offen-Lage in eine Geschlossen-Lage bewegbare Motohaube eines Fahrzeugs geschaffen mit einem einen Schließbügel in der Geschlossen-Lage der Motorhaube zurückhaltenden Schließhaken und einer den Schließhaken in der Geschlossen-Lage sperrenden Sperrklinke, wobei die Sperrklinke in der den Schließhaken sperrenden Geschlossen-Lage von einer Vorschließ-Stellung aktiv in eine Vollschließ-Stellung bewegbar ist.According to the invention a lock for a movable from an open position in a closed position Moto hood of a vehicle is provided with a closing bar in the closed position of the hood retaining latch and a locking hook in the closed position locking pawl, wherein the pawl in the closing hook blocking the closed position of a pre-closing position is actively movable into a full-closing position.

Gemäß der Erfindung wird für die Zuziehfunktion eines Schlosses eines Fahrzeugs weder der Schließbügel noch der Schließhaken aktiv bewegt, sondern stattdessen die Sperrklinke des Schlosses. Beim aktiven Bewegen der Sperrklinke befindet sich der Schließhaken in der Geschlossen-Lage, wobei die Sperrklinke den Schließhaken in dieser Lage bereits sperrt. Mit dem erfindungsgemäßen aktiven Bewegen der Sperrklinke wird daher auch der Schließhaken mitbewegt und mit diesem dann der Schließbügel an das restliche Schloss herangezogen. Mit diesem Mitbewegen des Schließhakens mittels der Sperrklinke sind die oben genannten Nachteile herkömmlicher Schlösser mit aktiv bewegbarem Schließhaken überwunden. Insbesondere kann der Schließhaken an der erfindungsgemäßen Sperrklinke beim Schließen der Motorhaube frei einschwingen. Ferner ist es bei dem erfindungsgemäßen Schloss nicht schädlich, wenn die Motorhaube mit großer Kraft geschlossen wird. Es ist in diesem Fall möglich, dass sich der Schließhaken an der Sperrklinke relativ zu dieser bewegt, weil der Schließhaken an der Sperrklinke ja lediglich eingeklinkt bzw. hinterhakt und damit in Öffnungsrichtung gesperrt ist. In Schließrichtung kann sich der der Schließhaken jedoch an der Sperrklinke ein gewisses Maß bewegen. Schäden am Aktuator sowie zwischen der Motorhaube und der restlichen Karosserie können so vermieden werden.According to the invention, neither the striker nor the striker is actively moved for the closing function of a lock of a vehicle, but instead the pawl of the lock. When the pawl is actively moved, the locking hook is in the closed position, with the pawl already locking the locking hook in this position. With the active invention Moving the pawl, therefore, also the closing hook is moved and used with this then the striker to the rest of the castle. With this Mitbewegen the closing hook by means of the pawl, the above-mentioned disadvantages of conventional locks are overcome with actively movable locking hook. In particular, the locking hook can swing freely on the pawl according to the invention when closing the hood. Furthermore, it is not harmful in the lock according to the invention, when the hood is closed with great force. It is possible in this case that the locking hook on the pawl moves relative to this, because the locking hook on the pawl yes only latched or behind hook and thus locked in the opening direction. In the closing direction, however, the closing hook can move to a certain extent on the pawl. Damage to the actuator and between the bonnet and the rest of the body can be avoided.

Die erfindungsgemäße Sperrklinke ist vorzugsweise an einem Lager schwenkbar gelagert und die Lage des Lagers ist mittels eines Exzenters verstellbar. Die derart gelagerte Sperrklinke kann an ihrer Lagerstelle mittels des Exzenters in Ihrer Lage verändert bzw. verstellt werden. Der Exzenter weist dazu zwei Wellenabschnitte auf, deren Wellenachsen exzentrisch zueinander angeordnet sind. Einer der Wellenabschnitte bildet die Lagerwelle für die Sperrklinke, der andere Wellenabschnitt die Stützwelle zum Abstützen des Exzenters an einer Lagerschale des erfindungsgemäßen Schlosses.The pawl according to the invention is preferably pivotally mounted on a bearing and the position of the bearing is adjustable by means of an eccentric. The pawl so mounted can be changed or adjusted at its location by means of the eccentric in your position. The eccentric has for this purpose two shaft sections whose shaft axes are arranged eccentrically to each other. One of the shaft sections forms the bearing shaft for the pawl, the other shaft section forms the support shaft for supporting the eccentric on a bearing shell of the lock according to the invention.

Der derartige Exzenter ist vorzugsweise in der Vollschließ-Stellung selbsthemmend gestaltet. Der Exzenter ist also in seiner Bewegbarkeit gehemmt, wenn er sich in oder nahe der Vollschließ-Stellung der Motorhaube befindet. Die Selbsthemmung des Exzenters kann auf einfache Weise dadurch erreicht werden, dass sich dieser in dieser Stellung in der Nähe seines Totpunkts seiner Verdrehung befindet. An diesem Totpunkt sind die beiden genannten Wellenabschnitte im Querschnitte betrachtet hintereinanderliegend in der Zugrichtung der an der Sperrklinke wirkenden Zugkraft angeordnet.Such eccentric is preferably designed self-locking in the full-closed position. The eccentric is thus inhibited in its mobility when it is in or near the full-close position of the hood. The self-locking of the eccentric can be achieved in a simple manner, that this is in this position near its dead center of its rotation. At this dead center, the two shaft sections mentioned are arranged one behind the other, viewed in cross section, in the pulling direction of the pulling force acting on the pawl.

An dem erfindungsgemäßen Schloss ist ferner ein Auswurfhebel zum Herausbewegen des Schließbügels aus dem Schließhaken vorgesehen, der in der Geschlossen-Lage von der Sperrklinke nicht blockiert ist. Der Auswurfhebel ist dabei vorteilhaft federnd gegen den Schließbügel gedrängt, so dass er den Schließbügel aus dem Schließhaken herausbewegt, sobald dies aufgrund einer Öffnungsbewegung des Schließhakens möglich ist.At the lock according to the invention, an ejection lever for moving out the striker from the locking hook is further provided, which is not blocked in the closed position of the pawl. The ejection lever is advantageously resiliently urged against the striker, so that he moves the striker from the locking hook, as soon as this is possible due to an opening movement of the closing hook.

Die Erfindung ist auch auf eine Verwendung eines Schlosses für eine von einer Offen-Lage in eine Geschlossen-Lage bewegbare Motorhaube eines Fahrzeugs gerichtet, mit einem einen Schließbügel in der Geschlossen-Lage zurückhaltenden Schließhaken und einer den Schließhaken in der Geschlossen-Lage sperrenden Sperrklinke, wobei die Sperrklinke in der den Schließhaken sperrenden Geschlossen-Lage von einer Vorschließ-Stellung aktiv in eine Vollschließ-Stellung bewegt wird.The invention is also directed to a use of a lock for a bonnet of a vehicle which can be moved from an open position to a closed position, with a locking hook which retains a striker in the closed position and a locking catch which locks the striker in the closed position. wherein the pawl is actively moved from a pre-close position to a full-close position in the closed-loop locking position of the closure hook.

Die Sperrklinke wird dabei wie erläutert vorteilhaft von der Vorschließ-Stellung aktiv in die Vollschließ-Stellung bewegt, nachdem die Motorhaube manuell geschlossen wurde.As explained, the pawl is actively moved from the pre-closing position to the fully-closed position after the engine hood has been manually closed.

Ferner wird die Sperrklinke vorteilhaft von der Vollschließ-Stellung aktiv in die Vorschließ-Stellung zurückbewegt, sobald die Motorhaube manuell geöffnet wird.Further, the pawl is advantageously moved back from the full-closed position actively in the pre-closing position as soon as the hood is opened manually.

Zum manuellen Öffnen der Motorhaube wird bevorzugt ein mechanisches Bedienelement verwendet. Dieses Bedienelement ist vorteilhaft ein Hebel, der sich in einem Fahrgastraum des Fahrzeugs befindet und dort vom Fahrer des Fahrzeugs bedient werden kann. Mit der erfindungsgemäßen Bewegung der Sperrklinke von der Vollschließ-Stellung in die Vorschließ-Stellung, sobald die manuelle Öffnung erfolgt, kann dieser Hebel aktiv entlastet und damit das manuelle Öffnen erleichtert werden.For manual opening of the hood, a mechanical operating element is preferably used. This control is advantageously a lever which is located in a passenger compartment of the vehicle and can be operated there by the driver of the vehicle. With the inventive movement of the pawl from the full-closing position to the pre-closing position, as soon as the manual opening, this lever can be actively relieved and thus facilitate manual opening.

Darüber hinaus wird die erfindungsgemäße Sperrklinke vorteilhaft von der Vollschließ-Stellung aktiv in die Vorschließ-Stellung bewegt, sobald an der Motorhaube eine Fußgängeraufprallsituation erkannt wird. Mit der derartigen, aktiven Bewegung der Sperrklinke an dem erfindungsgemäßen Schloss wird im Falle eines Unfalls sofort der Schlosshaken ein gewisses Stück freigegeben, so dass sich die Motorhaube um dieses gewisse Stück von der restlichen Karosserie entfernen kann. Die Motorhaube hat damit mehr Bewegungsspielraum und kann unter Umständen bei einem nachfolgenden Unfall weniger beschädigt werden. Die derartige Bewegung der Motorhaube ist auch insbesondere für einen Fußgängeraufprallschutz vorteilhaft, bei dem die Motorhaube zusätzlich aktiv in eine ausgestellte Schutzposition verbracht wird.In addition, the pawl according to the invention is advantageously moved from the full-closing position actively in the pre-closing position as soon as a pedestrian impact situation is detected on the hood. With such, active movement of the pawl to the lock of the invention, the lock hook is released in the event of an accident immediately a certain amount, so that the hood can remove this certain piece of the remaining body. The bonnet thus has more room to move and may be less damaged in a subsequent accident. Such movement of the hood is also particularly advantageous for pedestrian impact protection, in which the hood is additionally actively spent in a flared guard position.

Nachfolgend wird die erfindungsgemäße Lösung anhand der beigefügten schematischen Zeichnungen beispielhaft erläutert. Es zeigt:

  • Fig. 1 eine Vorderansicht eines Ausführungsbeispiels eines erfindungsgemäßen Schlosses in der Vorschließ-Stellung,
  • Fig. 2 eine Rückansicht der Vorschließ-Stellung gemäß Fig. 1,
  • Fig. 3 die Vorderansicht gemäß Fig. 1 in der Vollschließ-Stellung und
  • Fig. 4 die Rückansicht gemäß Fig. 2 in der Vollschließ-Stellung.
The solution according to the invention will now be explained by way of example with reference to the attached schematic drawings. It shows:
  • Fig. 1 a front view of an embodiment of a lock according to the invention in the pre-closing position,
  • Fig. 2 a rear view of the pre-closing position according to Fig. 1 .
  • Fig. 3 the front view according to Fig. 1 in the full-closed position and
  • Fig. 4 the rear view according to Fig. 2 in the full-closed position.

In Fig. 1 ist ein Schloss 10 dargestellt, bei dem an einem Stützblech 12 ein Schließhaken 14 schwenkbar gelagert ist. Mit dem Schließhaken 14 ist ein Schließbügel 16 einzuhaken, an dem sich ein nicht dargestelltes Karosseriebauteil befindet. Das Karosseriebauteil ist an einer zugehörigen Karosserie zwischen einer Offen-Lage und einer Geschlossen-Lage schwenkbar gelagert, etwa als Motorhaube oder Kofferraumdeckel, und kann dabei von dem Schloss 10 in der Geschlossen-Lage an der Karosserie zurückgehalten werden.In Fig. 1 a lock 10 is shown in which a closing hook 14 is pivotally mounted on a support plate 12. With the locking hook 14, a striker 16 is hooked, on which there is a body component, not shown. The body member is pivotally mounted on an associated body between an open position and a closed position, such as a bonnet or trunk lid, and can be retained by the lock 10 in the closed position on the body.

Um das Herausführen des Schließbügels 16 aus dem Schließhaken 14 zu erleichtern, ist an dem Stützblech 12 ein Auswurfhebel 18 schwenkbar gelagert. Ferner ist an dem Stützblech 12 eine Sperrklinke 20 schwenkbar gelagert, mittels der der Schließhaken 14 hinsichtlich seiner Schwenkbewegung gesperrt werden kann.In order to facilitate the lead out of the striker 16 from the locking hook 14, an ejector lever 18 is pivotally mounted on the support plate 12. Further, a pawl 20 is pivotally mounted on the support plate 12, by means of which the locking hook 14 can be locked with respect to its pivoting movement.

Der Schließhaken 14 ist an einer Schwenkachse 22 am Stützblech 12 angelenkt und weist in Bezug auf diese Schwenkachse 22 einen äußeren Hakenabschnitt 24 sowie einen inneren Hakenabschnitt 26 auf. Mit dem äußeren Hakenabschnitt 24 wird der Schließbügel 16 eingefangen und auch im halb geöffneten Zustand des Schließhakens 14 zurückgehalten. Mit dem inneren Hakenabschnitt 26 wird der Schließbügel 16 dann gefasst und vollständig zurückgehalten, wenn sich das Schloss 10, so wie in Fig. 3 und 4 dargestellt, in seiner Vollschließ-Stellung befindet.The closing hook 14 is articulated on a pivot axis 22 on the support plate 12 and has an outer hook portion 24 and an inner hook portion 26 with respect to this pivot axis 22. With the outer hook portion 24 of the striker 16 is captured and retained in the half-open state of the closing hook 14. With the inner hook portion 26 of the striker 16 is then taken and completely retained when the lock 10, as in 3 and 4 shown in its fully closed position.

Der Schließhaken 14 weist dazu an seinem zur Sperrklinke 20 gewandten Randbereich einen ersten Nasenabschnitt 28 und einen zweiten Nasenabschnitt 30 auf, an denen die Sperrklinke 20 wahlweise hinterhaken und den Schließhaken 14 so in der halb geschlossenen Lage und in der geschlossenen Lage sperren kann.For this purpose, the closing hook 14 has, at its edge region facing the pawl 20, a first nose portion 28 and a second nose portion 30, on which the pawl 20 can optionally hook behind and lock the closing hook 14 in the semi-closed position and in the closed position.

Der Auswurfhebel 18 ist mittels einer Schwenkachse 32 an dem Stützblech 12 an der dem Schließhaken 14 gegenüberliegenden Seite schwenkbar angelenkt und weist einen Auswurfabschnitt 34 auf. Mit diesem Auswurfabschnitt 34 drängt der Auswurfhebel 18 gegen den sich im inneren Hakenabschnitt 26 befindenden Schließbügel 16. Bei einem Öffnen des Schlosses 10 wird dadurch der Schließbügel 16 aus dem Hakenabschnitt 26 herausdrängt und damit ein Öffnen des Schlosses 10 erleichtert.
Die Sperrklinke 20 ist mittels eines von einem (nicht dargestellten) Aktuators aktiv antreibbaren Exzenters 36 an dem Stützblech 12 schwenkbar angelenkt. Dazu weist der Exzenter 36 an zwei gegenüberliegenden Seiten je einen Wellenabschnitt auf, nämlich an der zur Sperrklinke 20 gewandten Seite eine Lagerwelle 38 und an der zum Stützblech 12 gewandten Seite eine Stützwelle 40. Diese beiden Wellenabschnitte, die Lagerwelle 38 und die Stützwelle 40 sind zueinander exzentrisch, sie sind also parallel zueinander versetzt angeordnet. Dabei ist die Stützwelle 40 am Stützblech 12 angelenkt und mit einem Drehen des Exzenters 36 wird demnach die Lagerwelle 38 und damit auch die dort angelenkte Sperrklinke 20 am Stützblech 12 versetzt.The ejection lever 18 is articulated by means of a pivot axis 32 on the support plate 12 on the opposite side of the lock hook 14 and has a discharge section 34. With this ejection section 34, the ejection lever 18 urges against the locking hook 16 located in the inner hook section 26. When the lock 10 is opened, the striker 16 is thereby forced out of the hook section 26, thus facilitating opening of the lock 10.
The pawl 20 is pivotably connected to the support plate 12 by means of an eccentric 36 which can be actively driven by an actuator (not shown). For this purpose, the eccentric 36 on two opposite sides each have a shaft portion, namely on the side facing the pawl 20 a bearing shaft 38 and on the side facing the support plate 12 a support shaft 40. These two shaft sections, the bearing shaft 38 and the support shaft 40 to each other eccentric, so they are arranged offset parallel to each other. In this case, the support shaft 40 is articulated on the support plate 12 and with a rotation of the eccentric 36, therefore, the bearing shaft 38 and thus also the pawl 20 articulated there is displaced on the support plate 12.

Die Sperrklinke 20 weist einen Klinkenabschnitt 42 auf, mit dem sie an dem Hakenabschnitt 26 einhakt, wenn sich das Schloss 10 in der halb geschlossenen Lage befindet. Diese Sperrsituation ist vorgesehen, um das Karosseriebauteil auch bei einem unbeabsichtigten Öffnen des Schlosses 10 zunächst an der Karosserie zurückzuhalten.The pawl 20 has a pawl portion 42 with which it hooks to the hook portion 26 when the lock 10 in the semi-closed Location is located. This blocking situation is provided in order to initially retain the body component on the body even if the lock 10 were opened unintentionally.

Ist das Schloss 10 in der eigentlichen geschlossenen Lage, dann hakt der Klinkenabschnitt 42 an dem zweiten Nasenabschnitt 30 des Schließhakens 14 ein. Diese Sperrsituation der Sperrklinke 20 wird hier als Geschlossen-Lage bezeichnet.If the lock 10 in the actual closed position, then the pawl portion 42 hooks on the second nose portion 30 of the closing hook 14 a. This blocking situation of the pawl 20 is referred to here as the closed position.

Für diese Geschlossen-Lage bietet der Exzenter 36 zwei Schließstellungen: In jener Stellung, bei der die Lagerwelle 38 maximal zum zweiten Nasenabschnitt 30 hin verdreht ist, ist der Schließhaken 14 noch vergleichsweise weit geöffnet (siehe Fig. 1 und 2). Diese Stellung des Exzenters 38 und damit der Sperrklinke 20 wird hier als Vorschließ-Stellung des Schlosses 10 bezeichnet. In dieser Stellung ist das Schloss 10 bereits geschlossen, das zugehörige Karosseriebauteil aber noch nicht maximal an die benachbarte Karosserie heranbewegt.For this closed position of the eccentric 36 provides two closed positions: In that position in which the bearing shaft 38 is rotated to a maximum of the second nose portion 30, the locking hook 14 is still comparatively wide open (see Fig. 1 and 2 ). This position of the eccentric 38 and thus the pawl 20 is referred to here as the pre-closing position of the castle 10. In this position, the lock 10 is already closed, the associated body component but not yet zoomed up to the adjacent body.

Erst mit einem Verdrehen des Exzenters 36 gelangt die Lagerwelle 38 zu einem Totpunkt mit einem maximalen Abstand vom Bereich des zweiten Nasenabschnitts 30 (siehe Fig. 3 und 4). An diesem Totpunkt, der hier als Vollschließ-Stellung bezeichnet wird, ist dann die Sperrklinke 20 und mit ihr der innere Hakenabschnitt 26 des Schließhakens 14 bezogen auf die Fig. derart nach oben gezogen, dass der Schließbügel 16 maximal in das Schloss 10 hineingezogen und dort zurückgehalten ist. Damit ist auch das zugehörige Karosseriebauteil maximal an die benachbarte Karosserie herangezogen und in dieser vollständig geschlossenen Lage von dem Schloss 10 zurückgehalten.Only with a rotation of the eccentric 36 reaches the bearing shaft 38 to a dead center with a maximum distance from the region of the second nose portion 30 (see 3 and 4 ). At this dead center, which is referred to here as a full-closing position, then the pawl 20 and with it the inner hook portion 26 of the closing hook 14 with respect to the Fig. Pulled upwards so that the striker 16 pulled maximum in the lock 10 and there is restrained. Thus, the associated body component is maximally used to the adjacent body and retained in this fully closed position of the lock 10.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Schlosslock
1212
Stützblechgusset
1414
Schließhakenhasp
1616
Schließbügelstriker
1818
Auswurfhebeleject lever
2020
Sperrklinkepawl
2222
Schwenkachse des SchließhakensSwivel axis of the closing hook
2424
äußerer Hakenabschnittouter hook section
2626
innerer Hakenabschnittinner hook section
2828
erster Nasenabschnittfirst nose section
3030
zweiter Nasenabschnittsecond nose section
3232
Schwenkachse des AuswurfhebelsSwivel axis of the eject lever
3434
Auswurfabschnittejection section
3636
Exzentereccentric
3838
Lagerwelle des ExzentersBearing shaft of the eccentric
4040
Stützwelle des ExzentersSupport shaft of the eccentric
4242
Klinkenabschnittlatch portion

Claims (8)

  1. A lock (10) for a bonnet of a motor vehicle which can be moved from an open position into a closed position, comprising a locking hook (14) which retains a striker (16) in the closed position of the bonnet and a catch (20) locking the locking hook (14) in the closed position, an eject lever (18) for moving the striker (16) out of the locking hook (14) being provided which is not blocked by the catch (20) in the closed position, characterised in that the catch (20) can actively move from a pre-locked position to a fully locked position in the closed position which locks the locking hook (14) and the catch (20) actively moves from the fully locked position to the pre-locked position as soon as a pedestrian impact situation is detected on the bonnet.
  2. A lock according to Claim 1, the catch (20) being pivotably positioned on a bearing shaft (38) and the position of the bearing shaft (38) being adjustable by means of an eccentric (36).
  3. A lock according to Claim 2, the eccentric (36) being designed to be self-locking in the fully locked position.
  4. A lock according to any of Claims 1 to 3, the catch (20) being resiliently pushed in the direction of the locking hook (14).
  5. Use of a lock (10) for a bonnet of a motor vehicle which can be moved from an open position into a closed position, comprising a locking hook (14) which retains a striker (16) in the closed position and a catch (20) locking the locking hook (14) in the closed position, an eject lever (18) for moving the striker (16) out of the locking hook (14) being provided, which is not blocked by the catch (20) in the closed position, characterised in that the catch (20) actively moves from a pre-locked position to a fully locked position in the closed position which locks the locking hook (14) and the catch (20) actively moves from the fully locked position to the pre-locked position as soon as a pedestrian impact situation is detected on the bonnet.
  6. Use according to Claim 5, the catch (20) actively moving from the pre-locked position to the fully locked position after the bonnet has been manually closed.
  7. Use according to Claim 5 or 6, the catch (20) actively moving from the fully locked position back into the pre-locked position as soon as the bonnet is manually opened.
  8. Use according to Claim 7, a mechanical operating element being used to manually open the bonnet.
EP15762614.4A 2014-09-16 2015-09-10 Lock for a motor bonnet of a vehicle Active EP3194693B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014218529.7A DE102014218529A1 (en) 2014-09-16 2014-09-16 Lock for a body part of a vehicle
PCT/EP2015/070757 WO2016041847A1 (en) 2014-09-16 2015-09-10 Lock for a body component of a vehicle

Publications (2)

Publication Number Publication Date
EP3194693A1 EP3194693A1 (en) 2017-07-26
EP3194693B1 true EP3194693B1 (en) 2019-10-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15762614.4A Active EP3194693B1 (en) 2014-09-16 2015-09-10 Lock for a motor bonnet of a vehicle

Country Status (3)

Country Link
EP (1) EP3194693B1 (en)
DE (1) DE102014218529A1 (en)
WO (1) WO2016041847A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016117282A1 (en) * 2016-09-14 2018-03-15 Kiekert Ag MOTOR VEHICLE LOCK
DE102016117280A1 (en) * 2016-09-14 2018-03-15 Kiekert Ag MOTOR VEHICLE LOCK
US11118381B2 (en) * 2018-03-07 2021-09-14 GM Global Technology Operations LLC Dual-pull latch assemblies for compartment closure assemblies of motor vehicles

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DE102010061518A1 (en) * 2010-12-23 2012-04-05 Witte Automotive Gmbh Front bonnet lock for motor car, has tail hook firmly connected with rotary latch, where block of rotary latch is removed by displacement of discharge arm during ingress of closable bracket in check mouth

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JPH0814216B2 (en) * 1991-03-29 1996-02-14 株式会社大井製作所 Automotive back door closure device
DE10114065A1 (en) * 2001-03-21 2002-11-14 Siemens Ag Door lock, especially for vehicle doors, has catch pivotally connected to same rotary axle as deadlock
DE10327448A1 (en) * 2003-06-18 2005-01-05 Kiekert Ag Motor vehicle door lock
DE10361843A1 (en) * 2003-12-30 2005-07-28 Brose Schließsysteme GmbH & Co.KG Lock wedge drive assembly for a motor vehicle door lock
DE102007012208A1 (en) * 2007-03-14 2008-09-25 Kirchhoff Gmbh & Co. Kg Device for locking a pivotable component of a motor vehicle
DE102009003402A1 (en) * 2009-01-29 2010-08-05 Witte-Velbert Gmbh & Co. Kg Locking device has rotary catch fastened in pivoted manner at housing body around rotary catch axis and ratchet fastened in pivoted manner at housing body around ratchet axis
DE102009021297A1 (en) * 2009-05-14 2010-11-25 Inteva Products Europe Gmbh Motor vehicle lock
DE202010002413U1 (en) * 2010-02-05 2010-05-20 Melag Ohg Device for locking a door of a cleaning device, disinfection device, sterilization device or cleaning and disinfecting device
DE102012102723A1 (en) * 2011-09-23 2013-03-28 Huf Hülsbeck & Fürst Gmbh & Co. Kg Motor vehicle door lock

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Publication number Priority date Publication date Assignee Title
EP1455040A2 (en) * 2003-03-06 2004-09-08 Huf Hülsbeck & Fürst GmbH & Co. KG Lock with assisted final closing for lids or doors of a vehicle, in particular for a glove compartment
DE102010061518A1 (en) * 2010-12-23 2012-04-05 Witte Automotive Gmbh Front bonnet lock for motor car, has tail hook firmly connected with rotary latch, where block of rotary latch is removed by displacement of discharge arm during ingress of closable bracket in check mouth

Also Published As

Publication number Publication date
EP3194693A1 (en) 2017-07-26
WO2016041847A1 (en) 2016-03-24
DE102014218529A1 (en) 2016-03-17

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