EP3580414B1 - Motor vehicle door lock, more particularly hood lock - Google Patents

Motor vehicle door lock, more particularly hood lock Download PDF

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Publication number
EP3580414B1
EP3580414B1 EP18703193.5A EP18703193A EP3580414B1 EP 3580414 B1 EP3580414 B1 EP 3580414B1 EP 18703193 A EP18703193 A EP 18703193A EP 3580414 B1 EP3580414 B1 EP 3580414B1
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EP
European Patent Office
Prior art keywords
spring
hood
motor vehicle
vehicle door
sensor
Prior art date
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Application number
EP18703193.5A
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German (de)
French (fr)
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EP3580414A1 (en
Inventor
Ulrich Weichsel
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Kiekert AG
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Kiekert AG
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Publication of EP3580414A1 publication Critical patent/EP3580414A1/en
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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0025—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing
    • E05B17/0033—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing for opening only
    • E05B17/0037—Spring-operated
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/08—Electrical using electromagnets or solenoids
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0448—Units of springs; Two or more springs working together
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/70—Monitoring or sensing, e.g. by using switches or sensors the wing position
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/536—Hoods

Definitions

  • the invention relates to a motor vehicle door lock, in particular a hood lock, with a positioning device for a locking bolt or another stop part on a hood, also with at least one adjusting spring acting on the positioning device, and with a sensor for querying the position of the hood.
  • a motor vehicle door lock of the structure described above is known from practice. Comparable configurations are in the context of EP 1 710 378 A2 described.
  • a stop device is realized here, which is equipped with a pivoting part on which the locking bolt or the other stop part comes to rest when closing the door or hood that can be locked by the associated motor vehicle door lock. When the door or hood is closed further, a damping element or spring element on the pivoting part causes a force or torque, with the aid of which a vigorous closing of the door or hood is damped or slowed down.
  • a spring device on a pivotable flap of a motor vehicle which is equipped with a gas spring and an additional spring between the body of the motor vehicle and the flap.
  • an actuator that can be activated by a sensor device is provided, with the help of which the front flap can be raised into a pedestrian-protection position before an impact, for example, by a pedestrian, on the front flap.
  • the auxiliary spring ensures that in the event of a malfunction in which the gas spring has no gas pressure or has dropped, the front flap is held in the pedestrian protection position.
  • More generic motor vehicle door locks are from DE 100 19 668 A1 , FR 2 889 230 A1 , EP 2 400 086 A2 , DE 10 2011 121542 A1 and DE 21 38 677 A1 known.
  • hoods such as front hoods or tailgates
  • the invention is based on the technical problem of further developing such a motor vehicle door lock in such a way that the position of the hood can be correctly queried using the sensor.
  • a generic motor vehicle door lock within the scope of the invention is characterized in that an additional spring is provided in addition to the adjusting spring, which raises the hood if the adjusting spring fails and/or malfunctions. The up movement the hood takes place at least to the extent that the sensor does not generate the "closed" message for the hood.
  • the additional spring can therefore take over the function of the adjusting spring in the event of a failure or malfunction of the adjusting spring, at least to the extent that the sensor for querying the position of the hood does not, for example, send a signal in the sense of "hood closed" to a control unit. Rather, in this case, the additional spring, as a replacement for the adjusting spring, ensures that the hood is raised, even if only slightly. As a result, for example, a control unit and consequently also a vehicle driver are reliably informed that the hood in question is not closed and must be closed before departure. This succeeds even if the adjusting spring as such is broken, for example, loosened from its anchorage or otherwise impaired in its function. It is always ensured that the sensor for querying the position of the hood does not erroneously detect a closed position of the hood and report it to the control unit. This is where the main advantages can be seen.
  • the adjusting spring can generally be designed as a tension spring.
  • one end of the tension spring is generally stationarily connected to a lock housing.
  • the other end of the tension spring typically acts on an actuating element.
  • the installation device usually also has a position element.
  • the design is regularly made such that the actuating element and the position element are coupled to one another in an articulated manner.
  • changing the hood from its open or raised position to the closed position corresponds to the angle enclosed between the actuating element and the positioning element being increased.
  • the tension spring can relax.
  • the angle between the actuating element and the position element decreases, which corresponds overall to the desired setting up of the hood.
  • the positioning device is equipped with the additional spring.
  • the additional spring is designed as a torsion spring.
  • the torsion spring has two spring legs that are connected to one another via a coiled spring section. As a result, the two spring legs enclose a typically acute angle between them.
  • the two torsion springs spread open and ensure that the hood is raised anyway.
  • the torsion spring is connected with its one spring leg to the actuating element and with its other spring leg to the positioning element and ensures the corresponding spreading.
  • the spreading between the actuating element and the position element again corresponds to the fact that the hood is raised, at least to the extent that the sensor for querying the position of the hood does not incorrectly indicate its closed state.
  • the position element usually interacts with the sensor in question.
  • the position element is advantageously equipped with an actuating nose which acts on the sensor in question at least when the hood is in the closed state.
  • the sensor is most often a robust and inexpensive switch, particularly one so-called microswitches.
  • a microswitch is a switch that is widely used for positioning in motor vehicle door locks due to its dimensions in the millimeter range.
  • other sensors for example a distance sensor or the like, can also be used.
  • the locking bolt or other stop part on the hood generally interacts directly or indirectly with the actuating element and/or the positioning element. Most of the time, the locking bolt or the other stop part works on a swivel part, similar to how it is in the prior art of the generic type EP 1 710 378 A1 has already been described.
  • the locking bolt or the stop part ensures that the pivoting part performs a pivoting movement. The pivoting movement of the pivoting part is transmitted to the actuating element.
  • the pivoting part works on the position element. As a result of this, the position element and the actuating element connected to it in an articulated manner are spread apart in relation to one another. At the same time, this tensions the adjusting spring.
  • the actuating nose on the position element can act on the sensor or the switch, specifically as soon as the hood assumes its closed position.
  • the auxiliary spring alternatively ensures the spreading described and consequently also that the sensor or switch indicates the closed position of the hood as soon as this has actually been assumed.
  • the senor reliably indicates the position of the hood.
  • a reliable distinction can be made between the closed and set up state. This is important insofar as the hood, for example in the raised state, is typically secured with the aid of a fork latch or a locking hook, which then holds the locking bolt in the pre-locked position or locking hook position. nevertheless this installed state must be reliably communicated to a vehicle driver in order to prevent unintentional driving off. All of this is achieved according to the invention even if the actual adjusting spring has failed and its function is taken over by the supplementary spring provided as a supplement. This is where the main advantages can be seen.
  • a motor vehicle door lock and in particular a hood lock is shown.
  • the lock in question serves to fix a hood or front hood 1 to a body, not shown in detail, in the exemplary embodiment.
  • the hood 1 has a locking bolt 2.
  • the locking bolt 2 interacts with a locking mechanism, not shown in detail in the figures, which is composed of a rotary latch designed as a fork latch and at least one pawl.
  • a locking hook or catch hook is also realized, which holds the hood 1 in the raised position.
  • the latching hook or catch hook is not shown, but engages the locking bolt 2 .
  • a set-up device 3, 4, 5 explicitly drawn in the figures is implemented.
  • the positioning device 3, 4, 5 ensures that the locking bolt 2 and with it the hood 1 are set up in relation to the bodywork if, for example, the locking mechanism (not expressly shown) is opened using a handle or the like provided inside the motor vehicle. This does not apply to the catch hook that intervenes in this case, which locks the locking bolt 2 in the in 1 solid position shown secures.
  • the catch hook is not shown. As usual, this catch hook must be removed manually by a vehicle driver in order to be able to open the hood or front hood 1 as a whole.
  • a sensor 6 for querying the position of the hood 1 is provided. In particular, this sensor 6 can be used to determine whether the hood 1 is in its closed position relative to the body. The closed position is typically also implemented by a vehicle driver by manually actuating the hood 1 .
  • the driver of the vehicle may apply pressure to the hood 1 until it assumes its fully closed position relative to the body, shown in dashed lines in the figures.
  • the hood 1 is dropped, for example, from its open position and reaches the closed position by gravity.
  • the sensor 6 reports a corresponding closing signal to a control unit which is not expressly shown and is connected to the sensor 6 .
  • the positioning device 3, 4, 5 for the locking bolt 2 or another stop part on the hood 1 is composed of a positioning element 3 and an actuating element 4 in the exemplary embodiment.
  • the two aforementioned elements 3, 4 are coupled to one another in an articulated manner.
  • a common axis or axis of rotation 7 is provided for this purpose.
  • the axis or axis of rotation 7 is defined by a bolt that passes through the two elements 3, 4 and is fixed in a lock housing 8 or in some other way.
  • the adjusting element 4 is acted upon by means of an adjusting spring 9 .
  • the adjusting spring 9 is a helical spring or tension spring.
  • One end 9a of the adjusting spring 9 is connected to the lock housing 8 and is consequently stationary.
  • the other end 9b of the adjusting spring 9, on the other hand, is hooked into the adjusting element 4 at the end.
  • the positioning device 3 , 4 , 5 also has a pivoting part 5 .
  • the pivoting part 5 interacts with the locking bolt 2 on the hood 1.
  • the pivoting part 5 As soon as the hood 1, starting from the solidly drawn and erected position, as shown in FIG 1 is applied in the direction of the arrow to close the hood 1 relative to the motor vehicle body, this causes the pivoting part 5 to pivot, namely about an axis not expressly shown in the clockwise direction as shown in FIG 1 .
  • the pivoting movement of the pivoting part 5 also leads to the fact that the position element 3 or the position lever 3 realized at this point about the axis 7 also has a position in the 1 indicated clockwise movement. Because the position element or the position lever 3 engages with a boom in a guide in the pivot part 5 and is thereby pivoted clockwise.
  • the closing movement of the hood 1 realized in this way corresponds to the fact that an actuating lug 3a on the positioning element or positioning lever 3 actuates the sensor 6 designed as a switch.
  • this closed state is detected by the sensor or switch 6 and transmitted to the control unit, which is not expressly shown.
  • the pivoting movement of the pivoting part 5 that takes place during the closing process ensures that the actuating element 4, in comparison to the axis 7 common to the position element 3, also moves in the 1 indicated counter-clockwise movement.
  • the spring end 9b of the adjusting spring 9 is carried along, so that the adjusting spring 9 is tensioned overall.
  • the auxiliary spring 10 ensures that the hood 1 is nevertheless raised. At the same time, if the adjusting spring 9 fails, the sensor or switch 6 will not be erroneously acted upon.
  • the additional spring 10 for the positioning device 3, 4, 5 is designed overall as a torsion spring. It can be seen that the torsion spring has two spring legs 10a, 10b which are connected to a common coiled spring section which connects the two spring legs 10a, 10b to one another. The torsion spring is connected to the actuating element 4 with its one spring leg 10a. In contrast, the other spring leg 10b of the leg spring acts on the positioning element 3.
  • the locking bolt 2 acts on the pivoting part 5 and in this way the positioning element 3 and the actuating element 4 are spread apart with regard to their enclosed angle, this also leads to the fact that the angle between the two aforementioned elements 3, 4 interposed torsion spring is also spread open in the closed state of the hood 1 relative to the body and thus tensioned.
  • the additional spring 10 consequently ensures that the positioning element 3 and the adjusting element 4 are moved towards one another again with the aid of the additional spring 10 .
  • the additional spring 10 relaxes. This has the immediate consequence that the hood 1 is raised in such a case and consequently the position element 3 is pivoted counterclockwise about the axis 7 common to the actuating element 4 .
  • the senor or switch 6 assumes the position assumed by the hood 1 without any problems. In particular, a falsely displayed closed position of the hood 1 is prevented. This is where the main advantages can be seen.

Description

Die Erfindung betrifft ein Kraftfahrzeugtürschloss, insbesondere Haubenschloss, mit einer Aufstelleinrichtung für einen Schließbolzen oder ein anderes Anschlagteil an einer Haube, ferner mit zumindest einer die Aufstelleinrichtung beaufschlagenden Stellfeder, und mit einem Sensor zur Positionsabfrage der Haube.The invention relates to a motor vehicle door lock, in particular a hood lock, with a positioning device for a locking bolt or another stop part on a hood, also with at least one adjusting spring acting on the positioning device, and with a sensor for querying the position of the hood.

Ein Kraftfahrzeugtürschloss des eingangs beschriebenen Aufbaus ist aus der Praxis bekannt. Vergleichbare Ausgestaltungen werden im Rahmen der EP 1 710 378 A2 beschrieben. Hier ist eine Anschlageinrichtung realisiert, die mit einem Schwenkteil ausgerüstet ist, an dem der Schließbolzen oder das andere Anschlagteil beim Schließen der von dem zugehörigen Kraftfahrzeugtürschloss verschließbaren Tür oder Haube zur Anlage kommt. Beim weiteren Schließen der Tür oder Haube bewirkt ein Dämpfungselement bzw. Federelement an dem Schwenkteil eine Kraft oder ein Drehmoment, mit dessen Hilfe ein schwungvolles Schließen der Tür oder Haube gedämpft bzw. verlangsamt wird.A motor vehicle door lock of the structure described above is known from practice. Comparable configurations are in the context of EP 1 710 378 A2 described. A stop device is realized here, which is equipped with a pivoting part on which the locking bolt or the other stop part comes to rest when closing the door or hood that can be locked by the associated motor vehicle door lock. When the door or hood is closed further, a damping element or spring element on the pivoting part causes a force or torque, with the aid of which a vigorous closing of the door or hood is damped or slowed down.

Darüber hinaus kennt man unter anderem durch die DE 10 2010 029 816 A1 eine Federeinrichtung an einer schwenkbaren Klappe eines Kraftfahrzeuges, die mit einer Gasfeder und einer Zusatzfeder zwischen der Karosserie des Kraftfahrzeuges und der Klappe ausgerüstet ist. Außerdem ist ein von einer Sensoreinrichtung aktivierbarer Aktor vorgesehen, mit dessen Hilfe vor einem Aufprall, beispielsweise eines Fußgängers auf die Frontklappe, die Frontklappe in eine Fußgängerschutzlage hochgestellt werden kann. Mit Hilfe der Zusatzfeder wird gewährleistet, dass bei einem Störfall, bei dem die Gasfeder keinen oder einen abgefallenen Gasdruck aufweist, die Frontklappe in der gestellten Fußgängerschutzlage gehalten wird.In addition one knows among other things by the DE 10 2010 029 816 A1 a spring device on a pivotable flap of a motor vehicle, which is equipped with a gas spring and an additional spring between the body of the motor vehicle and the flap. In addition, an actuator that can be activated by a sensor device is provided, with the help of which the front flap can be raised into a pedestrian-protection position before an impact, for example, by a pedestrian, on the front flap. The auxiliary spring ensures that in the event of a malfunction in which the gas spring has no gas pressure or has dropped, the front flap is held in the pedestrian protection position.

Weitere gattungsgemäße Kraftfahrzeugtürschlösser sind aus DE 100 19 668 A1 , FR 2 889 230 A1 , EP 2 400 086 A2 , DE 10 2011 121542 A1 und DE 21 38 677 A1 bekannt.More generic motor vehicle door locks are from DE 100 19 668 A1 , FR 2 889 230 A1 , EP 2 400 086 A2 , DE 10 2011 121542 A1 and DE 21 38 677 A1 known.

Bei Hauben, wie beispielsweise Fronthauben oder Heckklappen, kommt es grundsätzlich darauf an, zwischen einer offenen und geschlossenen Stellung sicher zu unterscheiden. So besteht beispielsweise bei einer nicht richtig geschlossenen Frontklappe die Gefahr, dass die Frontklappe aus einer Vorraststellung durch den angreifenden Fahrtwind hochschwenkt und die Sicht für einen Fahrzeugführer vollständig verdeckt. Das ist gefährlich und unfallträchtig.In the case of hoods, such as front hoods or tailgates, it is fundamentally important to reliably distinguish between an open and closed position. For example, if the front flap is not properly closed, there is a risk that the front flap will swing up from a pre-locked position due to the oncoming airstream and completely block the driver's view. This is dangerous and accident-prone.

Selbstverständlich kommt es auch bei Seitentüren in Kraftfahrzeugen darauf an, dass diese ihre geschlossene Stellung sicher einnehmen. Denn nur dann können Zusatzeinrichtungen wie Seitenaufprallschutz, Seitenairbag etc. ihre volle Wirkung entfalten und die Fahrzeuginsassen optimal schützen. Im Gegensatz zu Seitentüren besteht bei Fronthauben oder Heckklappen jedoch das Problem, dass der geschlossene Zustand auch fälschlicherweise angezeigt werden kann.Of course, it is also important for side doors in motor vehicles that they safely assume their closed position. Because only then can additional equipment such as side impact protection, side airbags, etc. develop their full effect and optimally protect the vehicle occupants. In contrast to side doors, however, the problem with front hoods or tailgates is that the closed state can also be displayed incorrectly.

Derartiges lässt sich darauf zurückführen, dass beispielsweise eine Fronthaube aufgrund ihres Eigengewichtes den Sensor zur Positionsabfrage der Haube bzw. zur Abfrage der Schließstellung auch dann beaufschlagt, wenn die Stellfeder nicht oder nicht mehr zuverlässig funktioniert. Hier will die Erfindung insgesamt Abhilfe schaffen.This can be attributed to the fact that, for example, a front hood, due to its own weight, acts on the sensor for querying the position of the hood or for querying the closed position even if the adjusting spring is not working or is no longer working reliably. This is where the invention aims to remedy the situation overall.

Der Erfindung liegt das technische Problem zugrunde, ein derartiges Kraftfahrzeugtürschloss so weiterzuentwickeln, dass eine einwandfreie Positionsabfrage der Haube mit Hilfe des Sensors möglich wird.The invention is based on the technical problem of further developing such a motor vehicle door lock in such a way that the position of the hood can be correctly queried using the sensor.

Zur Lösung dieser technischen Problemstellung ist ein gattungsgemäßes Kraftfahrzeugtürschloss im Rahmen der Erfindung dadurch gekennzeichnet, dass ergänzend zu der Stellfeder eine Zusatzfeder vorgesehen ist, welche bei Ausfall und/oder Fehlfunktion der Stellfeder die Haube aufstellt. Die Aufstellbewegung der Haube erfolgt dabei zumindest soweit, dass der Sensor nicht die Meldung "geschlossen" für die Haube erzeugt.To solve this technical problem, a generic motor vehicle door lock within the scope of the invention is characterized in that an additional spring is provided in addition to the adjusting spring, which raises the hood if the adjusting spring fails and/or malfunctions. The up movement the hood takes place at least to the extent that the sensor does not generate the "closed" message for the hood.

Erfindungsgemäß kann also die Zusatzfeder bei einem Ausfall oder einer Fehlfunktion der Stellfeder die Funktion der Stellfeder zumindest so weit übernehmen, dass der Sensor zur Positionsabfrage der Haube nicht beispielsweise ein Signal im Sinne von "Haube geschlossen" an eine Steuereinheit abgibt. Vielmehr sorgt in diesem Fall die Zusatzfeder als Ersatz der Stellfeder dafür, dass die Haube aufgestellt wird und sei es auch nur geringfügig. Dadurch wird beispielsweise eine Steuereinheit und folglich auch ein Fahrzeugführer zuverlässig dahingehend unterrichtet, dass die fragliche Haube nicht geschlossen ist und vor der Abfahrt geschlossen werden muss. Das gelingt selbst dann, wenn die Stellfeder als solche beispielsweise gebrochen ist, aus ihrer Verankerung gelöst oder sonst wie in ihrer Funktion beeinträchtigt ist. Immer ist sichergestellt, dass der Sensor zur Positionsabfrage der Haube nicht fälschlicherweise eine geschlossene Position der Haube detektiert und an die Steuereinheit meldet. Hierin sind die wesentlichen Vorteile zu sehen.According to the invention, the additional spring can therefore take over the function of the adjusting spring in the event of a failure or malfunction of the adjusting spring, at least to the extent that the sensor for querying the position of the hood does not, for example, send a signal in the sense of "hood closed" to a control unit. Rather, in this case, the additional spring, as a replacement for the adjusting spring, ensures that the hood is raised, even if only slightly. As a result, for example, a control unit and consequently also a vehicle driver are reliably informed that the hood in question is not closed and must be closed before departure. This succeeds even if the adjusting spring as such is broken, for example, loosened from its anchorage or otherwise impaired in its function. It is always ensured that the sensor for querying the position of the hood does not erroneously detect a closed position of the hood and report it to the control unit. This is where the main advantages can be seen.

Die Stellfeder kann generell als Zugfeder ausgebildet sein. Hier wird man meistens mit einer Spiralfeder oder Schraubenwendelfeder arbeiten. Zu diesem Zweck ist die Zugfeder im Allgemeinen mit ihrem einen Ende ortsfest an ein Schlossgehäuse angeschlossen. Das andere Ende der Zugfeder greift dagegen typischerweise an einem Stellelement an.The adjusting spring can generally be designed as a tension spring. Here you will mostly work with a spiral spring or helical coil spring. For this purpose, one end of the tension spring is generally stationarily connected to a lock housing. In contrast, the other end of the tension spring typically acts on an actuating element.

Die Aufstelleinrichtung verfügt neben dem zuvor bereits angesprochenen Stellelement meistens zusätzlich über ein Positionselement. Dabei ist die Auslegung regelmäßig so getroffen, dass das Stellelement und das Positionselement gelenkig miteinander gekoppelt sind. Der Wechsel der Haube von ihrer geöffneten oder aufgestellten Position in die geschlossene Stellung korrespondiert in diesem Zusammenhang dazu, dass der zwischen dem Stellelement und dem Positionselement eingeschlossene Winkel vergrößert wird. Zugleich kommt es durch dieses Aufspreizen zwischen dem Stellelement und dem Positionselement dazu, dass die Zugfeder ausgelenkt wird.In addition to the actuating element already mentioned, the installation device usually also has a position element. The design is regularly made such that the actuating element and the position element are coupled to one another in an articulated manner. In this context, changing the hood from its open or raised position to the closed position corresponds to the angle enclosed between the actuating element and the positioning element being increased. At the same time it comes due to this spreading between the actuating element and the position element to the fact that the tension spring is deflected.

Sobald die Haube ihre geschlossene Position verlässt und aufgestellt wird, kann sich die Zugfeder entspannen. Hierbei verringert sich der Winkel zwischen dem Stellelement und dem Positionselement, was insgesamt zum gewünschten Aufstellen der Haube korrespondiert. Um nun bei einem Ausfall der Stellfeder dennoch eine einwandfreie Funktionssicherheit zu gewährleisten, ist die Aufstelleinrichtung mit der Zusatzfeder ausgerüstet.As soon as the hood leaves its closed position and is raised, the tension spring can relax. Here, the angle between the actuating element and the position element decreases, which corresponds overall to the desired setting up of the hood. In order to ensure perfect functional safety in the event of a failure of the adjusting spring, the positioning device is equipped with the additional spring.

In diesem Zusammenhang hat es sich bewährt, wenn die Zusatzfeder als Schenkelfeder ausgebildet ist. Die Schenkelfeder verfügt über zwei Federschenkel, die über einen gewundenen Federabschnitt miteinander verbunden sind. Dadurch schließen die beiden Federschenkel einen typischerweise spitzen Winkel zwischen sich ein.In this context, it has proven useful if the additional spring is designed as a torsion spring. The torsion spring has two spring legs that are connected to one another via a coiled spring section. As a result, the two spring legs enclose a typically acute angle between them.

Kommt es nun zum Ausfall der Stellfeder, so spreizen sich die beiden Schenkelfedern auf und sorgen dafür, dass die Haube dennoch aufgestellt wird. Dazu ist die Schenkelfeder mit ihrem einen Federschenkel an das Stellelement und mit ihrem anderen Federschenkel an das Positionselement angeschlossen und sorgt für die entsprechende Aufspreizung. Die Aufspreizung zwischen dem Stellelement und dem Positionselement korrespondiert erneut dazu, dass die Haube aufgestellt wird, und zwar zumindest so weit, dass der Sensor zur Positionsabfrage der Haube nicht fälschlicherweise deren geschlossenen Zustand anzeigt.If the adjusting spring fails, the two torsion springs spread open and ensure that the hood is raised anyway. For this purpose, the torsion spring is connected with its one spring leg to the actuating element and with its other spring leg to the positioning element and ensures the corresponding spreading. The spreading between the actuating element and the position element again corresponds to the fact that the hood is raised, at least to the extent that the sensor for querying the position of the hood does not incorrectly indicate its closed state.

Zu diesem Zweck wechselwirkt in der Regel das Positionselement mit dem fraglichen Sensor. Dazu ist das Positionselement vorteilhaft mit einer Betätigungsnase ausgerüstet, welche zumindest in geschlossenem Zustand der Haube den fraglichen Sensor beaufschlagt. Bei dem Sensor handelt es sich meistens um einen robusten und kostengünstigen Schalter, insbesondere einen sogenannten Mikroschalter. Ein Mikroschalter ist ein Schalter, wie er zur Positionierung in Kraftfahrzeugtürschlössern wegen seiner Abmessungen im Millimeterbereich vielfältig eingesetzt wird. Selbstverständlich können auch andere Sensoren, beispielsweise ein Abstandssensor oder dergleichen, zum Einsatz kommen.For this purpose, the position element usually interacts with the sensor in question. For this purpose, the position element is advantageously equipped with an actuating nose which acts on the sensor in question at least when the hood is in the closed state. The sensor is most often a robust and inexpensive switch, particularly one so-called microswitches. A microswitch is a switch that is widely used for positioning in motor vehicle door locks due to its dimensions in the millimeter range. Of course, other sensors, for example a distance sensor or the like, can also be used.

Der Schließbolzen oder das andere Anschlagteil an der Haube wechselwirkt im Allgemeinen direkt oder indirekt mit dem Stellelement und/oder dem Positionselement. Meistens arbeitet der Schließbolzen bzw. das andere Anschlagteil auf ein Schwenkteil, ähnlich wie dies wie im gattungsbildenden Stand der Technik nach der EP 1 710 378 A1 bereits beschrieben wurde. Der Schließbolzen bzw. das Anschlagteil sorgt beim Schließvorgang der Haube dafür, dass das Schwenkteil eine Schwenkbewegung vollführt. Die Schwenkbewegung des Schwenkteils wird auf das Stellelement übertragen. Außerdem arbeitet das Schwenkteil auf das Positionselement. Als Folge hiervon werden das Positionselement und das gelenkig hiermit verbundene Stellelement zueinander aufgespreizt. Zugleich wird hierdurch die Stellfeder gespannt.The locking bolt or other stop part on the hood generally interacts directly or indirectly with the actuating element and/or the positioning element. Most of the time, the locking bolt or the other stop part works on a swivel part, similar to how it is in the prior art of the generic type EP 1 710 378 A1 has already been described. During the closing process of the hood, the locking bolt or the stop part ensures that the pivoting part performs a pivoting movement. The pivoting movement of the pivoting part is transmitted to the actuating element. In addition, the pivoting part works on the position element. As a result of this, the position element and the actuating element connected to it in an articulated manner are spread apart in relation to one another. At the same time, this tensions the adjusting spring.

Da das Positionselement bei diesem Vorgang der Schließbewegung der Haube eine Schwenkbewegung vollführt, kann die Betätigungsnase am Positionselement den Sensor bzw. den Schalter beaufschlagen, und zwar sobald die Haube ihre geschlossene Position einnimmt. Für den Fall, dass die Stellfeder ausfällt, sorgt die Zusatzfeder alternativ für das beschriebene Aufspreizen und folglich auch dafür, dass der Sensor bzw. Schalter die geschlossene Position der Haube anzeigt, sobald diese tatsächlich eingenommen worden ist.Since the position element performs a pivoting movement during this process of the closing movement of the hood, the actuating nose on the position element can act on the sensor or the switch, specifically as soon as the hood assumes its closed position. In the event that the adjusting spring fails, the auxiliary spring alternatively ensures the spreading described and consequently also that the sensor or switch indicates the closed position of the hood as soon as this has actually been assumed.

Im Ergebnis gibt der Sensor zuverlässig die Position der Haube an. Insbesondere kann sicher zwischen dem geschlossenen und aufgestellten Zustand unterschieden werden. Das ist insofern von Bedeutung, als die Haube beispielsweise in aufgestelltem Zustand typischerweise mit Hilfe einer Gabelfalle bzw. einem Rasthaken gesichert ist, welche(r) in der dann eingenommenen Vorraststellung oder Rasthakenstellung den Schließbolzen festhält. Gleichwohl muss dieser aufgestellte Zustand an einen Fahrzeugführer zuverlässig kommuniziert werden, um ein unbeabsichtigtes Losfahren zu verhindern. Dies alles gelingt erfindungsgemäß selbst dann, wenn die eigentliche Stellfeder ausgefallen ist und ihre Funktion von der ergänzend vorgesehenen Zusatzfeder übernommen wird. Hierin sind die wesentlichen Vorteile zu sehen.As a result, the sensor reliably indicates the position of the hood. In particular, a reliable distinction can be made between the closed and set up state. This is important insofar as the hood, for example in the raised state, is typically secured with the aid of a fork latch or a locking hook, which then holds the locking bolt in the pre-locked position or locking hook position. nevertheless this installed state must be reliably communicated to a vehicle driver in order to prevent unintentional driving off. All of this is achieved according to the invention even if the actual adjusting spring has failed and its function is taken over by the supplementary spring provided as a supplement. This is where the main advantages can be seen.

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

Fig. 1 und 2
das erfindungsgemäße Kraftfahrzeugtürschloss in verschiedenen Ansichten bzw. Funktionsstellungen.
The invention is explained in more detail below with reference to a drawing that merely represents an exemplary embodiment; show it:
Figures 1 and 2
the motor vehicle door lock according to the invention in different views and functional positions.

In den Figuren ist ein Kraftfahrzeugtürschloss und insbesondere ein Haubenschloss dargestellt. Tatsächlich dient das fragliche Schloss dazu, im Ausführungsbeispiel eine Haube bzw. Fronthaube 1 an einer nicht näher gezeigten Karosserie festzulegen. Die Haube 1 verfügt über einen Schließbolzen 2. Der Schließbolzen 2 wechselwirkt mit einem in den Figuren nicht näher dargestelltem Gesperre, welches sich aus einer als Gabelfalle ausgelegten Drehfalle und wenigstens einer Sperrklinke zusammensetzt. Außerdem ist noch ein Rasthaken bzw. Fanghaken realisiert, welcher die Haube 1 in aufgestellter Position festhält. Der Rasthaken bzw. Fanghaken ist ebenso wie das Gesperre nicht dargestellt, greift aber am Schließbolzen 2 an.In the figures, a motor vehicle door lock and in particular a hood lock is shown. In fact, the lock in question serves to fix a hood or front hood 1 to a body, not shown in detail, in the exemplary embodiment. The hood 1 has a locking bolt 2. The locking bolt 2 interacts with a locking mechanism, not shown in detail in the figures, which is composed of a rotary latch designed as a fork latch and at least one pawl. In addition, a locking hook or catch hook is also realized, which holds the hood 1 in the raised position. Like the locking mechanism, the latching hook or catch hook is not shown, but engages the locking bolt 2 .

Zusätzlich ist eine in den Figuren explizit gezeichnete Aufstelleinrichtung 3, 4, 5 realisiert. Die Aufstelleinrichtung 3, 4, 5 sorgt dafür, dass der Schließbolzen 2 und mit ihm die Haube 1 gegenüber der Karosserie aufgestellt werden, wenn beispielsweise mit Hilfe eines im Innern des Kraftfahrzeuges vorgesehenen Handgriffes oder dergleichen das nicht ausdrücklich dargestellte Gesperre geöffnet wird. Das gilt nicht für den in diesem Fall eingreifenden Fanghaken, welcher den Schließbolzen 2 in der in Fig. 1 durchgezogen dargestellten aufgestellten Position sichert.In addition, a set-up device 3, 4, 5 explicitly drawn in the figures is implemented. The positioning device 3, 4, 5 ensures that the locking bolt 2 and with it the hood 1 are set up in relation to the bodywork if, for example, the locking mechanism (not expressly shown) is opened using a handle or the like provided inside the motor vehicle. This does not apply to the catch hook that intervenes in this case, which locks the locking bolt 2 in the in 1 solid position shown secures.

Der Fanghaken ist ebenso wie das Gesperre nicht dargestellt. Wie üblich muss dieser Fanghaken von einem Fahrzeugführer manuell entfernt werden, um die Haube bzw. Fronthaube 1 insgesamt öffnen zu können. Außerdem ist ein Sensor 6 zur Positionsabfrage der Haube 1 vorgesehen. Mit Hilfe dieses Sensors 6 kann insbesondere festgestellt werden, ob sich die Haube 1 in ihrer geschlossenen Position gegenüber der Karosserie befindet. Die geschlossene Position wird typischerweise ebenfalls von einem Fahrzeugführer durch manuelle Beaufschlagung der Haube 1 umgesetzt.Like the locking mechanism, the catch hook is not shown. As usual, this catch hook must be removed manually by a vehicle driver in order to be able to open the hood or front hood 1 as a whole. In addition, a sensor 6 for querying the position of the hood 1 is provided. In particular, this sensor 6 can be used to determine whether the hood 1 is in its closed position relative to the body. The closed position is typically also implemented by a vehicle driver by manually actuating the hood 1 .

Dazu mag der Fahrzeugführer die Haube 1 soweit drückend beaufschlagen, dass sie ihre in den Figuren gestrichelt dargestellte sowie vollständig geschlossene Position gegenüber der Karosserie einnimmt. Grundsätzlich ist es aber auch möglich, dass die Haube 1 beispielsweise aus ihrer geöffneten Position fallengelassen wird und per Schwerkraft die geschlossene Position erreicht. In beiden Fällen meldet der Sensor 6 ein entsprechendes Schließsignal an eine nicht ausdrücklich dargestellte und an den Sensor 6 angeschlossene Steuereinheit.To do this, the driver of the vehicle may apply pressure to the hood 1 until it assumes its fully closed position relative to the body, shown in dashed lines in the figures. In principle, however, it is also possible that the hood 1 is dropped, for example, from its open position and reaches the closed position by gravity. In both cases, the sensor 6 reports a corresponding closing signal to a control unit which is not expressly shown and is connected to the sensor 6 .

Die Aufstelleinrichtung 3, 4, 5 für den Schließbolzen 2 oder ein anderes Anschlagteil an der Haube 1 setzt sich im Ausführungsbeispiel aus einem Positionselement 3 und einem Stellelement 4 zusammen. Die beiden vorgenannten Elemente 3, 4 sind gelenkig miteinander gekoppelt. Dazu ist eine gemeinsame Achse bzw. Drehachse 7 vorgesehen. Die Achse bzw. Drehachse 7 wird von einem die beiden Elemente 3, 4 durchgreifenden Bolzen definiert, welcher in einem Schlossgehäuse 8 oder sonst wie ortsfest festgelegt ist.The positioning device 3, 4, 5 for the locking bolt 2 or another stop part on the hood 1 is composed of a positioning element 3 and an actuating element 4 in the exemplary embodiment. The two aforementioned elements 3, 4 are coupled to one another in an articulated manner. A common axis or axis of rotation 7 is provided for this purpose. The axis or axis of rotation 7 is defined by a bolt that passes through the two elements 3, 4 and is fixed in a lock housing 8 or in some other way.

Das Stellelement 4 wird mit Hilfe einer Stellfeder 9 beaufschlagt. Bei der Stellfeder 9 handelt es sich im Ausführungsbeispiel um eine Schraubenfeder bzw. Zugfeder. Die Stellfeder 9 ist mit ihrem einen Ende 9a an das Schlossgehäuse 8 und folglich ortsfest angeschlossen. Das andere Ende 9b der Stellfeder 9 ist dagegen endseitig in das Stellelement 4 eingehängt.The adjusting element 4 is acted upon by means of an adjusting spring 9 . In the exemplary embodiment, the adjusting spring 9 is a helical spring or tension spring. One end 9a of the adjusting spring 9 is connected to the lock housing 8 and is consequently stationary. The other end 9b of the adjusting spring 9, on the other hand, is hooked into the adjusting element 4 at the end.

Die Aufstelleinrichtung 3, 4, 5 weist neben dem Positionselement 3 und dem Stellelement 4 zusätzlich noch ein Schwenkteil 5 auf. Das Schwenkteil 5 wechselwirkt mit dem Schließbolzen 2 an der Haube 1. Sobald die Haube 1 ausgehend von der durchgezogen gezeichneten und aufgestellten Position entsprechend der Darstellung in der Fig. 1 in Richtung des Pfeils zum Schließen der Haube 1 gegenüber der Kraftfahrzeugkarosserie beaufschlagt wird, führt dies dazu, dass das Schwenkteil 5 eine Schwenkbewegung vollführt, und zwar um eine nicht ausdrücklich dargestellte Achse im Uhrzeigersinn entsprechend der Darstellung in der Fig. 1. Die Schwenkbewegung des Schwenkteils 5 führt zugleich dazu, dass das Positionselement 3 bzw. der an dieser Stelle realisierte Positionshebel 3 um die Achse 7 eine ebenfalls in der Fig. 1 angedeutete Uhrzeigersinnbewegung vollführt. Denn das Positionselement bzw. der Positionshebel 3 greift mit einem Ausleger in eine Führung im Schwenkteil 5 ein und wird hierdurch im Uhrzeigersinn verschwenkt.In addition to the positioning element 3 and the actuating element 4 , the positioning device 3 , 4 , 5 also has a pivoting part 5 . The pivoting part 5 interacts with the locking bolt 2 on the hood 1. As soon as the hood 1, starting from the solidly drawn and erected position, as shown in FIG 1 is applied in the direction of the arrow to close the hood 1 relative to the motor vehicle body, this causes the pivoting part 5 to pivot, namely about an axis not expressly shown in the clockwise direction as shown in FIG 1 . The pivoting movement of the pivoting part 5 also leads to the fact that the position element 3 or the position lever 3 realized at this point about the axis 7 also has a position in the 1 indicated clockwise movement. Because the position element or the position lever 3 engages with a boom in a guide in the pivot part 5 and is thereby pivoted clockwise.

Als Folge hiervon korrespondiert die auf diese Weise realisierte Schließbewegung der Haube 1 dazu, dass eine Betätigungsnase 3a am Positionselement bzw. Positionshebel 3 den als Schalter ausgelegten Sensor 6 betätigt. Sobald die Haube 1 ihre vollständig geschlossene Position gegenüber der Kraftfahrzeugkarosserie eingenommen hat, wird dieser geschlossene Zustand seitens des Sensors bzw. Schalters 6 erfasst und an die nicht ausdrücklich dargestellte Steuereinheit übermittelt. Zugleich sorgt die beim Schließvorgang erfolgende Schwenkbewegung des Schwenkteils 5 dafür, dass das Stellelement 4 im Vergleich zur mit dem Positionselement 3 gemeinsamen Achse 7 die ebenfalls in der Fig. 1 angedeutete Gegenuhrzeigersinnbewegung vollführt. Bei diesem Vorgang wird das Federende 9b der Stellfeder 9 mitgenommen, so dass die Stellfeder 9 insgesamt gespannt wird.As a result of this, the closing movement of the hood 1 realized in this way corresponds to the fact that an actuating lug 3a on the positioning element or positioning lever 3 actuates the sensor 6 designed as a switch. As soon as the hood 1 has assumed its completely closed position in relation to the motor vehicle body, this closed state is detected by the sensor or switch 6 and transmitted to the control unit, which is not expressly shown. At the same time, the pivoting movement of the pivoting part 5 that takes place during the closing process ensures that the actuating element 4, in comparison to the axis 7 common to the position element 3, also moves in the 1 indicated counter-clockwise movement. During this process, the spring end 9b of the adjusting spring 9 is carried along, so that the adjusting spring 9 is tensioned overall.

Sollte die Stellfeder 9 brechen oder eines der Federenden 9a, 9b ausgehängt sein, so kann es grundsätzlich dennoch dazu kommen, dass das Positionselement 3 wie beschrieben verschwenkt wird und die Betätigungsnase 3a den Sensor respektive Schalter 6 beaufschlagt. Als Folge hiervon meldet der Sensor 6 in einem solchen Fall unter Umständen ein fälschlicherweise abgegebenes Signal "geschlossen" an die Steuereinheit. Um dies zu verhindern, ist erfindungsgemäß die insbesondere in der Fig. 2 zu erkennende Zusatzfeder 10 realisiert, die in diesem Fall die Funktion der Stellfeder 9 übernimmt. Die Zusatzfeder 10 ist der Aufstelleinrichtung 3, 4, 5 zugeordnet bzw. wechselwirkt mit dieser, vergleichbar wie die Stellfeder 9.Should the adjusting spring 9 break or should one of the spring ends 9a, 9b be disengaged, it is still possible that the position element 3 is pivoted as described and the actuating lug 3a acts on the sensor or switch 6. As a result, the sensor reports 6 In such a case, an erroneously transmitted "closed" signal may be sent to the control unit. To prevent this, according to the invention, in particular in the 2 to be recognized additional spring 10 realized, which takes over the function of the spring 9 in this case. The additional spring 10 is assigned to the positioning device 3, 4, 5 or interacts with it, comparable to the adjusting spring 9.

Tatsächlich sorgt die Zusatzfeder 10 bei einem Ausfall und/oder einer Fehlfunktion der Stellfeder 9 dafür, dass die Haube 1 dennoch aufgestellt wird. Zugleich kommt es dann bei dem Ausfall der Stellfeder 9 nicht dazu, dass der Sensor bzw. Schalter 6 fälschlicherweise beaufschlagt wird. Zu diesem Zweck ist die Zusatzfeder 10 für die Aufstelleinrichtung 3, 4, 5 insgesamt als Schenkelfeder ausgebildet. Man erkennt, dass die Schenkelfeder zwei Federschenkel 10a, 10b aufweist, die an einen gemeinsamen und die beiden Federschenkel 10a, 10b miteinander verbindenden gewundenen Federabschnitt angeschlossen sind. Die Schenkelfeder ist mit ihrem einen Federschenkel 10a an das Stellelement 4 angeschlossen. Demgegenüber beaufschlagt der andere Federschenkel 10b der Schenkelfeder das Positionselement 3.In fact, in the event of a failure and/or malfunction of the adjusting spring 9, the auxiliary spring 10 ensures that the hood 1 is nevertheless raised. At the same time, if the adjusting spring 9 fails, the sensor or switch 6 will not be erroneously acted upon. For this purpose, the additional spring 10 for the positioning device 3, 4, 5 is designed overall as a torsion spring. It can be seen that the torsion spring has two spring legs 10a, 10b which are connected to a common coiled spring section which connects the two spring legs 10a, 10b to one another. The torsion spring is connected to the actuating element 4 with its one spring leg 10a. In contrast, the other spring leg 10b of the leg spring acts on the positioning element 3.

Kommt es wie zuvor beim Schließvorgang beschrieben dazu, dass der Schließbolzen 2 das Schwenkteil 5 beaufschlagt und auf diese Weise das Positionselement 3 und das Stellelement 4 im Hinblick auf ihren zwischen sich eingeschlossenen Winkel aufgespreizt werden, so führt dies zugleich dazu, dass die zwischen den beiden vorgenannten Elementen 3, 4 zwischengeschaltete Schenkelfeder ebenfalls in geschlossenem Zustand der Haube 1 gegenüber der Karosserie aufgespreizt und damit gespannt wird. Bei einem Ausfall der Stellfeder 9 sorgt folglich die Zusatzfeder 10 dafür, dass das Positionselement 3 und das Stellelement 4 mit Hilfe der Zusatzfeder 10 wieder aufeinander zubewegt werden. Hierbei entspannt sich die Zusatzfeder 10. Das hat dann unmittelbar zur Folge, dass die Haube 1 in einem solchen Fall aufgestellt wird und demzufolge auch das Positionselement 3 im Gegenuhrzeigersinn um die mit dem Stellelement 4 gemeinsame Achse 7 verschwenkt wird. Dadurch kann die Betätigungsnase 3a am Positionselement 3 den Sensor bzw. Schalter 6 nicht beaufschlagen. Das heißt, die Zusatzfeder 10 verhindert, dass beim Ausfall der Stellfeder 9 fälschlicherweise ein Signal des Sensors bzw. Schalters 6 an die Steuereinheit übermittelt wird, welches auf eine geschlossene Position der Haube 1 im Vergleich zur Karosserie hindeutet.If, as described above during the closing process, the locking bolt 2 acts on the pivoting part 5 and in this way the positioning element 3 and the actuating element 4 are spread apart with regard to their enclosed angle, this also leads to the fact that the angle between the two aforementioned elements 3, 4 interposed torsion spring is also spread open in the closed state of the hood 1 relative to the body and thus tensioned. If the adjusting spring 9 fails, the additional spring 10 consequently ensures that the positioning element 3 and the adjusting element 4 are moved towards one another again with the aid of the additional spring 10 . Here, the additional spring 10 relaxes. This has the immediate consequence that the hood 1 is raised in such a case and consequently the position element 3 is pivoted counterclockwise about the axis 7 common to the actuating element 4 . This allows the Actuating lug 3a on position element 3 does not apply to sensor or switch 6. This means that the additional spring 10 prevents a signal from the sensor or switch 6 from being incorrectly transmitted to the control unit in the event of a failure of the adjusting spring 9, which signal indicates a closed position of the hood 1 in comparison to the body.

Vielmehr ist im Rahmen der Erfindung sichergestellt, dass durch den Rückgriff auf die Zusatzfeder 10 der Sensor bzw. Schalter 6 einwandfrei die jeweils von der Haube 1 eingenommene Position einnimmt. Insbesondere eine fälschlicherweise angezeigte geschlossene Position der Haube 1 wird verhindert. Hierin sind die wesentlichen Vorteile zu sehen.Rather, it is ensured within the scope of the invention that, by resorting to the additional spring 10, the sensor or switch 6 assumes the position assumed by the hood 1 without any problems. In particular, a falsely displayed closed position of the hood 1 is prevented. This is where the main advantages can be seen.

Claims (6)

  1. Motor vehicle door latch, in particular a hood latch comprising a raising device (3, 4, 5) for a latching bolt (2) or another stop part on a hood (1), further comprising at least one actuating spring (9) acting on the raising device (3, 4, 5), and comprising a sensor (6) for position checking of the hood (1), wherein an additional spring (10) is provided which, in the event of failure and/or malfunction of the actuating spring (9), raises the hood (1), wherein the actuating spring (9) is designed as a tension spring and is fixedly connected by one end (9a) to a latch housing (8) and by its other end (9b) to a control member (4), wherein the raising device (4) also comprises a positioning element (3) in addition to the control member (4), wherein the control member (4) and the positioning element (3) are coupled together in an articulated manner and the positioning element (3) interacts with the sensor (6).
  2. Motor vehicle door latch according to claim 1, characterized in that the additional spring (10) is designed as a leg spring.
  3. Motor vehicle door latch according to claim 2, characterized in that the additional spring (10) designed as a leg spring is connected by one spring leg (10a) to the control member (4) and acts on the positioning element (3) by means of its other spring leg (10b).
  4. Motor vehicle door latch according to any of claims 1 to 3,
    characterized in that the latching bolt (2) or the other stop part on the hood (1) interacts directly or indirectly with the control member (4) and/or the positioning element (3).
  5. Motor vehicle door latch according to claim 4, characterized in that the positioning element (3) has an actuating lug (3a) which acts on the sensor (6) at least in the closed state of the hood (1).
  6. Motor vehicle door latch according to any of claims 1 to 5, characterized in that the sensor (6) is designed as a switch, in particular a microswitch.
EP18703193.5A 2017-02-13 2018-01-24 Motor vehicle door lock, more particularly hood lock Active EP3580414B1 (en)

Applications Claiming Priority (2)

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DE102017102813.7A DE102017102813A1 (en) 2017-02-13 2017-02-13 Motor vehicle door lock, in particular hood lock
PCT/DE2018/100051 WO2018145692A1 (en) 2017-02-13 2018-01-24 Motor vehicle door lock, more particularly hood lock

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EP3580414A1 EP3580414A1 (en) 2019-12-18
EP3580414B1 true EP3580414B1 (en) 2023-04-05

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US (1) US11519198B2 (en)
EP (1) EP3580414B1 (en)
CN (1) CN110325698B (en)
DE (1) DE102017102813A1 (en)
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DE102011121542B4 (en) * 2011-12-17 2022-06-15 Volkswagen Aktiengesellschaft Locking device for a flap of a vehicle, operating method
US9145716B2 (en) * 2012-05-09 2015-09-29 Ford Global Technologies, Llc Deployable hood latch for pedestrian head protection
KR101542689B1 (en) * 2014-03-14 2015-08-06 평화정공 주식회사 Hood latch device for automobile
KR101856358B1 (en) * 2016-09-13 2018-05-10 현대자동차주식회사 Apparatus for hood latch of vehicle

Also Published As

Publication number Publication date
DE102017102813A1 (en) 2018-08-16
EP3580414A1 (en) 2019-12-18
WO2018145692A1 (en) 2018-08-16
US11519198B2 (en) 2022-12-06
US20190368224A1 (en) 2019-12-05
CN110325698B (en) 2021-05-28
CN110325698A (en) 2019-10-11

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