EP0811101A1 - Motor vehicle flap lock, especially tailgate flap lock - Google Patents

Motor vehicle flap lock, especially tailgate flap lock

Info

Publication number
EP0811101A1
EP0811101A1 EP96904783A EP96904783A EP0811101A1 EP 0811101 A1 EP0811101 A1 EP 0811101A1 EP 96904783 A EP96904783 A EP 96904783A EP 96904783 A EP96904783 A EP 96904783A EP 0811101 A1 EP0811101 A1 EP 0811101A1
Authority
EP
European Patent Office
Prior art keywords
pawl
latch
drive
driver pin
motor vehicle
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.)
Granted
Application number
EP96904783A
Other languages
German (de)
French (fr)
Other versions
EP0811101B1 (en
Inventor
Piotr Szablewski
Siegfried Karge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0811101A1 publication Critical patent/EP0811101A1/en
Application granted granted Critical
Publication of EP0811101B1 publication Critical patent/EP0811101B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E05B83/18—Locks for luggage compartments, car boot lids or car bonnets for car boot lids or rear luggage compartments
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/243—Bolts rotating about an axis with a bifurcated bolt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/23—Vehicle door latches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/43—Rear deck lid latches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1044—Multiple head
    • Y10T292/1045—Operating means
    • Y10T292/1047—Closure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1082—Motor

Definitions

  • the invention relates to a motor vehicle flap lock or the like, in particular a rear flap lock, with the features of the preamble of claim 1.
  • the known motor vehicle flap lock from which the invention is based (DE - C - 39 32 268) is suitable as a flap lock, in particular for a tailgate or a rear door, but also as a hood lock or door lock. It is explained in the prior art using the example of a tailgate lock or rear door lock.
  • Such motor vehicle locks operated with an electromotive opening drive are indeed of particular importance for the rear doors of station wagons, but also for the tailgates of normal limousines.
  • an elastic stop is provided for the pawl and its raised position.
  • the drive element which is a worm wheel of an electromotive worm drive and is designed as a disk, is rotated in the reverse direction about its axis of rotation by a prestressed return spring and is thus returned to its starting position.
  • the driver pin returns to its starting position in the same direction with the opposite direction of travel, on which it has approached the actuating surface of the locking pawl on the way there and moved it into the lifting position. If the tailgate is then closed, the lock latch releases the pawl so that it can return to the drop position under the action of the spring located between the two.
  • the electromotive drive not only has to lift the pawl, but at the same time also tension the return spring of the worm wheel. It must therefore be designed to be correspondingly powerful.
  • a corresponding motor vehicle flap lock or motor vehicle door lock (DE - A - 3242 527) is also known from the prior art, in which the pawl is lifted by means of an eccentric driver pin so that the drive element always rotates in one direction only, that is, it is not reset, the driver pin passing the actuating surface after the pawl has been lifted out.
  • the driver pin therefore does not return to its starting position in a backward movement, but instead runs through a complete 360 ° arc back to its starting position, upon reaching which a microswitch switches off the electromotive drive.
  • the shutdown of the electromotive drive can be triggered by monitoring the current consumption of the electromotive drive as soon as the pawl abuts the elastic stop there. This is more convenient than using microswitches, which can always fail.
  • the invention is based on the object of designing and developing the above-described known motor vehicle flap lock, in particular tailgate lock, in such a way that it works without a return spring with a control of the electric motor in block mode (without a microswitch).
  • the pawl which is actively held in its raised position by the lock latch in its open position can itself easily form the fixed stop surface - driver stop surface - which is required for block operation of the electromotive drive. While in the prior art the elastic stop for the pawl ultimately realized the driver stop surface on the actuating surface of the pawl, which, however, absolutely required the return movement of the driver peg, it was recognized according to the invention that a driver stop surface acting in exactly the opposite way the contact surface of the pawl on the lock latch can be realized.
  • FIG. 1 shows a particularly preferred exemplary embodiment of a motor vehicle tailgate lock according to the invention in the starting position, namely in the latching position of the lock latch, the electric drive motor being switched off,
  • FIG. 4 shows the drive element from FIG. 2 in a view from the direction IV.
  • FIG. 1 shows, using the example of a motor vehicle tailgate lock, to be understood in a non-restrictive manner, that is to say also for all other flap locks, padlocks or door locks on motor vehicles, first of all a lock housing 1 and therein a lock latch 2 designed as a rotary latch on a bearing axis 3 The position of a striker 4 is indicated, which is gripped by the latch latch 2 with the fork mouth when the tailgate is closed.
  • the lock latch 2 In the illustrated locking position, the lock latch 2 is held by a pawl 5, which is shown in its engagement position in FIG. 1.
  • the pawl 5 can be pivoted about a bearing axis 6 located at the bottom left in the exemplary embodiment shown.
  • the pawl 5 and the lock latch 2 are biased towards each other in the illustrated and preferred exemplary embodiment by means of a spring 7.
  • a rubber-elastic buffer element 8 is shown for the two end positions of the lock latch 2, that is to say the detent position and the open position.
  • the lock latch 2 itself can be covered with a rubber-elastic material.
  • the pawl 5 holds the lock latch 2 in the latching position by means of a latch 9, to which a corresponding latch 10 on the latch 2 corresponds.
  • the lock latch 2 has only one Main detent, locking lug 10.
  • the pawl 5 has an actuating surface 1 1.
  • the pawl 5 also shows a connection point 12 for an emergency opening element 12a, which is used for the mechanical / manual emergency opening from a locking cylinder. Pulling to the left in FIG. 1 on the emergency opening element 12a causes the pawl 5 to be lifted out of the lock latch 2.
  • the arrow in FIG. 1 indicates the direction of rotation of the drive element 14 and the direction of movement of the driver pin 16.
  • FIG. 2 A comparison of FIG. 1 and FIG. 2 shows that the driver pin 16 runs against the actuating surface 11 by rotating the drive element 14 in the direction shown by the arrow, and thus the pawl 5 counterclockwise about its bearing axis 6 pivots. As a result, the locking lug 9 of the pawl 5 is lifted out of the locking lug 10 of the lock latch 2. This position is shown in FIG. 2.
  • Fig. 3 shows that the lock latch 2 in the open position holds the pawl 5 in the raised position, for this purpose a retaining surface 17 is formed on the pawl 5 in a manner known per se, which is supported on a counter surface 17a on the leg of the lock latch 2.
  • Fig. 1, Fig. 2 and Fig. 3 in connection show that the electromotive drive 13 rotates the drive element 14 only in one direction, that is, the drive element 14 is not, also not by spring force, reset that the driver pin 16 after the successful Lifting the pawl 5 past the actuating surface 11 runs that seen on the pawl 5 in the running direction of the driver pin 16 at a distance behind the actuating surface 1 1, a driver stop surface 18 is located, which is in the raised position pawl 5 in the path of movement of the driver pin 16 and stops it, in the collapsed position Pawl 5, however, lies outside the path of movement of the driver pin 16, and that the electromotive drive 13 is switched off by the driving of the driver pin 16 on the stop surface 18 (block operation).
  • the driver pin 16 thus causes the pawl 5 to make a slight overstroke beyond the actual lifting position in order to be able to run past the actuating surface 11. This ensures that the lock latch 2 opens really unproblematically.
  • connection point 12 is provided for the emergency opening.
  • the electric motor drive 13 were to block in the position shown in FIG. 2 or a position advancing somewhat further in the direction of rotation shown, the pawl 5 could no longer return to its collapsed position. Accordingly, blocking the electromotive drive 13 in one position with the driver pin 16 between the positions shown in FIGS. 1 and 3 would result in the pawl 5 being completely blocked, so that a mechanical emergency opening would no longer be possible .
  • the driver pin 16 is relatively movable relative to the drive element 14 by means of a circular arc limited to a small angle, preferably an angle of 45 °, that the drive element 14 has this relative ⁇ movement of the driver pin 16 has a free cut 20 and that the driver pin 16 is biased by a spring 21 in the direction of rotation of the drive element 14 leading end position E.
  • the free cut 20 can be designed as an arcuate elongated hole or as a circular cutout that is open on the circumference, or it can also have another functionally expedient shape, as shown in the present exemplary embodiment.
  • the spring 21 is a bending spring here.
  • the driver pin 16 can be arranged, for example, with an annular flange exposed in a circular, elongated hole, biased only by the spring 21 in the direction of the end position E.
  • the exemplary embodiment shown and in this respect preferred also shows a special construction insofar as it is provided that the drive element 14 has two partial elements 22, 23 arranged one behind the other in the direction of its bearing axis 14a and that a partial element 22 with the electromotive drive 13 is firmly coupled and has the cutout 20 and the other sub-element 23 carries the driver pin 16. This technique, shown in FIG.
  • FIGS. 3 and 1 A comparison of FIGS. 3 and 1 makes it clear that the spring loading of the driving pin 16 causes the driving pin 16 to initially run against the stop surface 18, but without any direct effect on the drive element 14. This initially continues, the electromotive drive 13 rotates it continues in the direction of the arrow, the driver pin 16 yields under the load on the spring 21, so it simply stops at the stop surface 18. Only when the rear end of the cutout 20 (ie the trailing end) is reached, does the positive engagement between the driver pin 16 and the drive element 14 occur and the electromotive drive 13 runs into the Block. Now the electric motor drive 13 switches off after the set delay * run time.

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

Described is a motor vehicle flap lock with a latch (2) that moves from an open to a lock-in position and vice versa, a pawl (5) that catches and holds the latch in the lock-in position and a spring (7) pretensioning the latch (2) with the pawl (5), which has a control surface (11) at a distance from the detent (9) for the latch (2). An electric motor drive (13) is provided, having a drive member (14) with a driving pin (16) arranged excentrically thereto; through the rotation of the drive member (14) the driving pin (16) strikes the control surface (11) in one direction and lifts the detent (9) of the pawl (5) off the detent (10) of the latch (2). The latch (2) in the open position holds the pawl (5) in the lift-off position. The electric motor drive (13) turns the drive member (14) in the one direction only, and thus the drive member (14) is not reversed. After the pawl (5) has been lifted off, the drive pin (16) moves past the control surface (11). From the perspective of the drive pin (16) running direction, the pawl (5) has, set at a distance behind the control surface (11), a drive pin stop face (18) that lies in the path of, and stops, the drive pin (16) when the pawl (5) is in the lift-off position, but lies outside the path of the drive pin (16) when the pawl (5) is in the locking position. The electric motor drive (13) is switched off when the drive pin (16) strikes the stop face (18) (block mode).

Description

Kraftfahrzeug-Klappenschloß, insbesondere Heckklappenschloß Motor vehicle flap lock, in particular tailgate lock
Die Erfindung betrifft ein Kraftfahrzeug-Klappenschloß od. dgl., insbesondere Heck¬ klappenschloß, mit den Merkmalen des Oberbegriffs von Anspruch 1.The invention relates to a motor vehicle flap lock or the like, in particular a rear flap lock, with the features of the preamble of claim 1.
Das bekannte Kraftfahrzeug-Klappenschloß, von dem die Erfindung ausgeht (DE - C - 39 32 268) ist als Klappenschloß, insbesondere für eine Heckklappe oder eine Hecktür, aber auch als Haubenschloß oder Türschloß geeignet. Es ist im Stand der Technik am Beispiel eines Heckklappenschlosses bzw. Hecktürschlosses erläutert. Besondere Bedeutung haben solche mit einem elektromotorischen Öffnungsantrieb betriebene Kraftfahrzeugschlösser in der Tat für Hecktüren von Kombiwagen, aber auch für Heckklappen von normalen Limousinen.The known motor vehicle flap lock from which the invention is based (DE - C - 39 32 268) is suitable as a flap lock, in particular for a tailgate or a rear door, but also as a hood lock or door lock. It is explained in the prior art using the example of a tailgate lock or rear door lock. Such motor vehicle locks operated with an electromotive opening drive are indeed of particular importance for the rear doors of station wagons, but also for the tailgates of normal limousines.
Bei dem bekannten Kraftfahrzeug-Klappenschloß ist für die Sperrklinke und deren Aushebestellung ein elastischer Anschlag vorgesehen. Sobald die Sperrklinke den elastischen Anschlag und damit ihre Aushebestellung erreicht hat, wird der elektro¬ motorische Antrieb abgeschaltet. Das ein Schneckenrad eines elektromotorischen Schneckentriebes darstellende, als Scheibe ausgeführte Antriebselement wird durch eine vorgespannte Rückstellfeder in Rückwärtsrichtung um seine Drehachse gedreht und auf diese Weise in seine Ausgangsposition zurückgeführt. Der Mitnehmerzapfen kehrt dadurch auf dem selben Wege mit umgekehrter Laufrichtung in seine Aus¬ gangsstellung zurück, auf dem er auf dem Hinweg die Betätigungsfläche der Sperr¬ klinke angefahren und diese in Aushebestellung bewegt hat. Wird die Heckklappe dann geschlossen, so gibt die Schloßfalle die Sperrklinke frei, so daß diese in die Ein¬ fallstellung zurückkehren kann, und zwar unter der Wirkung der zwischen beiden befindlichen Feder.In the known motor vehicle flap lock, an elastic stop is provided for the pawl and its raised position. As soon as the pawl has reached the elastic stop and thus its lifting position, the electromotive drive is switched off. The drive element, which is a worm wheel of an electromotive worm drive and is designed as a disk, is rotated in the reverse direction about its axis of rotation by a prestressed return spring and is thus returned to its starting position. As a result, the driver pin returns to its starting position in the same direction with the opposite direction of travel, on which it has approached the actuating surface of the locking pawl on the way there and moved it into the lifting position. If the tailgate is then closed, the lock latch releases the pawl so that it can return to the drop position under the action of the spring located between the two.
Bei dem zuvor erläuterten Kraftfahrzeug-Klappenschloß muß der elektromotorische Antrieb nicht nur die Sperrklinke ausheben, sondern gleichzeitig auch die Rückstell¬ feder des Schneckenrades spannen. Er muß daher entsprechend leistungsstark ausge¬ führt sein.In the motor vehicle flap lock explained above, the electromotive drive not only has to lift the pawl, but at the same time also tension the return spring of the worm wheel. It must therefore be designed to be correspondingly powerful.
Bekannt ist aus dem Stand der Technik auch ein entsprechendes Kraftfahrzeug- Klappenschloß bzw. Kraftfahrzeug-Türschloß (DE - A - 3242 527), bei dem das Aus- heben der Sperrklinke mittels eines exzentrischen Mitnehmerzapfens so erfolgt, daß daß Antriebselement stets nur in einer Richtung dreht, also nicht zurückgestellt wird, wobei der Mitnehmerzapfen nach erfolgtem Ausheben der Sperrklinke an deren Be¬ tätigungsfläche vorbeiläuft. Der Mitnehmerzapfen kehrt also hier nicht in einer Rückwärtsbewegung in seine Ausgangsstellung zurück, sondern durchläuft einen kompletten 360°-Bogen wieder zurück in seine Ausgangsstellung, bei deren Errei¬ chen ein Mikroschalter den elektromotorischen Antrieb abschaltet.A corresponding motor vehicle flap lock or motor vehicle door lock (DE - A - 3242 527) is also known from the prior art, in which the pawl is lifted by means of an eccentric driver pin so that the drive element always rotates in one direction only, that is, it is not reset, the driver pin passing the actuating surface after the pawl has been lifted out. The driver pin therefore does not return to its starting position in a backward movement, but instead runs through a complete 360 ° arc back to its starting position, upon reaching which a microswitch switches off the electromotive drive.
Bei dem eingangs erläuterten Stand der Technik ist es zweckmäßig, daß man die Ab¬ schaltung des elektromotorischen Antriebs, sobald die Sperrklinke gegen den dorti¬ gen elastischen Anschlag stößt, mittels Überwachung der Stromaufnahme des elek¬ tromotorischen Antriebs auslösen kann. Das ist zweckmäßiger als die Verwendung von Mikroschaltern, die immer einmal ausfallen können.In the prior art explained at the outset, it is expedient that the shutdown of the electromotive drive can be triggered by monitoring the current consumption of the electromotive drive as soon as the pawl abuts the elastic stop there. This is more convenient than using microswitches, which can always fail.
Der Erfindung liegt die Aufgabe zugrunde, das eingangs erläuterte, bekannte Kraft¬ fahrzeug-Klappenschloß, insbesondere Heckklappenschloß, so auszugestalten und weiterzubilden, daß es ohne Notwendigkeit einer Rückstellfeder mit einer Steuerung des Elektromotors im Blockbetrieb (ohne Mikroschalter) arbeitet.The invention is based on the object of designing and developing the above-described known motor vehicle flap lock, in particular tailgate lock, in such a way that it works without a return spring with a control of the electric motor in block mode (without a microswitch).
Die zuvor aufgezeigte Aufgabe ist mit den Merkmalen des kennzeichnenden Teils von Anspruch 1 gelöst. Erfindungsgemäß ist erkannt worden, daß die von der Schlo߬ falle in deren Öffnungsstellung aktiv in ihrer Aushebestellung gehaltene Sperrklinke ohne weiteres selbst die feste Anschlagfläche - Mitnehmer-Stoppfläche - bilden kann, die für einen Blockbetrieb des elektromotorischen Antriebs erforderlich ist. Während im Stand der Technik letztlich der elastische Anschlag für die Sperrklinke die Mit¬ nehmer-Stoppfläche an der Betätigungsfläche der Sperrklinke realisiert, was aber zwingend die Rückkehrbewegung des Mitnehmerzapfens erfordert, ist erfindungs¬ gemäß erkannt worden, daß eine genau entgegengesetzt wirkende Mitnehmer- Stoppfläche durch die Anlagefläche der Sperrklinke an der Schloßfalle realisiert wer¬ den kann. Dazu muß man lediglich diese Stoppfläche in die Bewegungsbahn des Mitnehmerzapfens übertragen, folglich an der Sperrklinke in dieser Bewegungsbahn ausbilden. Läuft der Mitnehmerzapfen gegen diese Stoppfläche an, so steigt der Stromverbrauch des elektrischen Antriebsmotors an und nach einer gewissen Verzögerungszeit kann dann die Abschaltung erfolgen (Blockbetrieb). Kehrt die Schloßfalle dann beim Schließen der Heckklappe wieder in die Raststellung zurück, wobei die Sperrklinke dann in die Einfallstellung zurückkehrt, so bewegt sich die Mitnehmer-Stoppfläche aus der Bewegungsbahn des Mitnehmerzapfens heraus, blockiert diesen also nicht mehr. Beim nächsten Öffnungsvorgang kann der Mitnehmerzapfen also unbehindert wieder mittels des Antriebselementes in seine Arbeitsrichtung weitergedreht werden.The above-stated object is achieved with the features of the characterizing part of claim 1. According to the invention, it has been recognized that the pawl which is actively held in its raised position by the lock latch in its open position can itself easily form the fixed stop surface - driver stop surface - which is required for block operation of the electromotive drive. While in the prior art the elastic stop for the pawl ultimately realized the driver stop surface on the actuating surface of the pawl, which, however, absolutely required the return movement of the driver peg, it was recognized according to the invention that a driver stop surface acting in exactly the opposite way the contact surface of the pawl on the lock latch can be realized. All you have to do is transfer this stop surface into the path of movement of the driver pin, consequently, form it on the pawl in this path of movement. If the driver pin runs against this stop surface, the power consumption of the electric drive motor increases and after a certain delay the switch-off can then take place (block operation). If the lock latch then returns to the locking position when the tailgate is closed, and the pawl then returns to the collapsed position, the driver stop surface moves out of the path of movement of the driver pin, so it no longer blocks it. During the next opening process, the driver pin can thus be rotated freely in its working direction again by means of the drive element.
Die voranstehend erläuterte Konstruktion birgt eine Gefahr dann, wenn der elektro¬ motorische Antrieb aus welchem Grunde auch immer ausfallen sollte. Steht der Mit¬ nehmerzapfen dann nämlich zufällig gerade über der Mitnehmer-Stoppfläche an der Sperrklinke, so kann die Sperrklinke auch durch eine Notbetätigung von Hand nicht mehr in die Aushebestellung bewegt werden. Eine Lösung für dieses Problem bietet die Lehre des Anspruchs 2. Beim Anlaufen an die Mitnehmer-Stoppfläche (aber auch an die Betätigungsfläche) wird der Mitnehmerzapfen entgegen der Wirkung der Fe¬ derkraft zunächst gegenüber dem Antriebselement stehenbleiben, dieses wird sich also über eine gewisse Strecke weiterbewegen, bis dann der Formschluß zwischen Mitnehmerzapfen und Antriebselement dieser Weiterbewegung ein Ende setzt. Dann erst wird der elektromotorische Antrieb abgeschaltet. Kehrt nun die Sperrklinke beim Schließen der Heckklappe in die Einfallstellung zurück, so bewegt sich der Mitneh¬ merzapfen unter Wirkung der Federkraft selbsttätig weiter bis zu einem Punkt jenseits der Lage der Mitnehmer-Stoppfläche an der Sperrklinke. Der Winkel des Kreisbogens muß entsprechend bemessen werden. Ganz gleich, was jetzt mit dem elektromotori¬ schen Antrieb bei nächster Betätigung geschieht, eine Blockierung der Sperrklinke gegenüber einer mechanischen Notbetätigung ist jedenfalls ausgeschlossen.The construction explained above poses a danger if the electric motor drive should fail for whatever reason. If the driver pin then just happens to be just above the driver stop surface on the pawl, the pawl can no longer be moved into the lifting position even by manual emergency operation. A solution to this problem is provided by the teaching of claim 2. When the driver stop surface (but also the actuating surface) starts to run, the driver pin will initially remain against the drive element against the effect of the spring force, and this will therefore remain over a certain distance move on until the positive connection between the driver pin and the drive element puts an end to this further movement. Only then is the electric motor drive switched off. If the pawl returns to the collapsed position when the tailgate is closed, the driver pin moves automatically under the action of the spring force to a point beyond the position of the driver stop surface on the pawl. The angle of the circular arc must be dimensioned accordingly. Regardless of what happens to the electric motor drive the next time it is actuated, blocking of the pawl in relation to mechanical emergency actuation is in any case impossible.
Eine Ausgestaltung der zuvor erläuterten Konstruktion ist schließlich Gegenstand des Anspruchs 3.An embodiment of the construction explained above is finally the subject of claim 3.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel dar¬ stellenden Zeichnung näher erläutert. In der Zeichnung zeigt Fig. 1 ein besonders bevorzugtes Ausführungsbeispiel eines erfindungsgemäs- sen Kraftfahrzeug-Heckklappenschlosses in Ausgangsstellung, nämlich in Raststellung der Schloßfalle, der elektrische Antriebsmotor abgeschal¬ tet,The invention is explained in more detail below with reference to a drawing which represents only one exemplary embodiment. In the drawing shows 1 shows a particularly preferred exemplary embodiment of a motor vehicle tailgate lock according to the invention in the starting position, namely in the latching position of the lock latch, the electric drive motor being switched off,
Fig. 2 das Schloß aus Fig. 1 bei Erreichen der Aushebestellung der Sperrklinke, die Schloßfalle den Öffnungs-Schwenkhub beginnend,2 the lock from FIG. 1 when the pawl is in the raised position, the lock latch starts the opening pivot stroke,
Fig. 3 das Schloß aus Fig. 1 , jetzt mit der Schloßfalle in Öffnungsstellung und der Sperrklinke in Aushebestellung, den Mitnehmerzapfen an der Mit¬ nehmer-Stoppfläche, der elektromotorische Antrieb abgeschaltet.3, the lock from FIG. 1, now with the lock latch in the open position and the pawl in the raised position, the driver pin on the driver stop surface, the electromotive drive switched off.
Fig. 4 das Antriebselement aus Fig. 2 in einer Ansicht aus Richtung IV.4 shows the drive element from FIG. 2 in a view from the direction IV.
Fig. 1 zeigt am Beispiel eines Kraftfahrzeug-Heckklappenschlosses, insoweit aber nicht beschränkend zu verstehen, also auch für alle anderen Klappenschlösser, Hau¬ benschlösser oder Türschlösser an Kraftfahrzeugen, zunächst ein Schloßgehäuse 1 und darin gelagert eine als Drehfalle ausgeführte Schloßfalle 2 auf einer Lagerachse 3. Angedeutet ist die Lage eines Schließbügels 4, der von der Schloßfalle 2 mit dem Gabelmaul erfaßt ist, wenn die Heckklappe geschlossen ist.1 shows, using the example of a motor vehicle tailgate lock, to be understood in a non-restrictive manner, that is to say also for all other flap locks, padlocks or door locks on motor vehicles, first of all a lock housing 1 and therein a lock latch 2 designed as a rotary latch on a bearing axis 3 The position of a striker 4 is indicated, which is gripped by the latch latch 2 with the fork mouth when the tailgate is closed.
In der dargestellten Raststellung wird die Schloßfalle 2 durch eine Sperrklinke 5 ge¬ halten, die in Fig. 1 in ihrer Einfallstellung dargestellt ist. Die Sperrklinke 5 ist um eine im dargestellten Ausführungsbeispiel links unten liegende Lagerachse 6 schwenkbar. Die Sperrklinke 5 und die Schloßfalle 2 sind im dargestellten und bevorzugten Aus¬ führungsbeispiel mittels einer Feder 7 aufeinanderzu vorgespannt. Dargestellt ist ein gummielastisches Pufferelement 8 für die beiden Endlagen der Schloßfalle 2, also die Raststellung und die Öffnungsstellung. Auch die Schloßfalle 2 selbst kann mit einem gummielastischen Material ummantelt sein kann.In the illustrated locking position, the lock latch 2 is held by a pawl 5, which is shown in its engagement position in FIG. 1. The pawl 5 can be pivoted about a bearing axis 6 located at the bottom left in the exemplary embodiment shown. The pawl 5 and the lock latch 2 are biased towards each other in the illustrated and preferred exemplary embodiment by means of a spring 7. A rubber-elastic buffer element 8 is shown for the two end positions of the lock latch 2, that is to say the detent position and the open position. The lock latch 2 itself can be covered with a rubber-elastic material.
Die Sperrklinke 5 hält die Schloßfalle 2 in Raststellung mittels einer Rastnase 9, zu der eine entsprechende Rastnase 10 an der Schloßfalle 2 korrespondiert. Im dargestellten Ausführungsbeispiel eines Heckklappenschlosses hat die Schloßfalle 2 nur eine Hauptrast, Rastnase 10. Es gibt natürlich auch Varianten mit Hauptrast und Vorrast an der Schloßfalle 2.The pawl 5 holds the lock latch 2 in the latching position by means of a latch 9, to which a corresponding latch 10 on the latch 2 corresponds. In the illustrated embodiment of a tailgate lock, the lock latch 2 has only one Main detent, locking lug 10. Of course there are also variants with main detent and preliminary detent on the lock latch 2.
Im Abstand von der Rastnase 9 weist die Sperrklinke 5 eine Betätigungsfläche 1 1 auf. Außerdem erkennt man an der Sperrklinke 5 noch einen Anschlußpunkt 12 für ein Notöffnungselement 12a, das der mechanischen / manuellen Notöffnung von ei¬ nem Schließzylinder her dient. Ein Ziehen nach links in Fig. 1 am Notöffnungselement 12a bewirkt das Ausheben der Sperrklinke 5 aus der Schloßfalle 2.At a distance from the latch 9, the pawl 5 has an actuating surface 1 1. In addition, the pawl 5 also shows a connection point 12 for an emergency opening element 12a, which is used for the mechanical / manual emergency opening from a locking cylinder. Pulling to the left in FIG. 1 on the emergency opening element 12a causes the pawl 5 to be lifted out of the lock latch 2.
In Fig. 1 lediglich angedeutet ist ein elektromotorischer Antrieb 13 mit einem als Scheibe ausgeführten Antriebselement 14 (Schneckenrad im dargestellten Ausfüh¬ rungsbeispiel) und einer Antriebsspindel 15. Das Antriebselement 14 ist mit einem ex¬ zentrisch angeordneten Mitnehmerzapfen 16 ausgerüstet, der zusammen mit dem An¬ triebselement 14 eine Art Kurbeltrieb bildet. Das alles ist an sich aus dem Stand der Technik bekannt.1 only indicates an electromotive drive 13 with a drive element 14 designed as a disk (worm wheel in the exemplary embodiment shown) and a drive spindle 15. The drive element 14 is equipped with an eccentrically arranged driver pin 16, which together with the actuator ¬ drive element 14 forms a type of crank mechanism. All of this is known per se from the prior art.
Der Pfeil in Fig. 1 deutet die Drehrichtung des Antriebselementes 14 und die Bewe¬ gungsrichtung des Mitnehmerzapfens 16 an.The arrow in FIG. 1 indicates the direction of rotation of the drive element 14 and the direction of movement of the driver pin 16.
Ein Vergleich von Fig. 1 und Fig. 2 zeigt, daß der Mitnehmerzapfen 16 durch Dre¬ hung des Antriebselements 14 in der durch den Pfeil dargestellten Richtung an die Betätigungsfläche 1 1 anläuft und damit die Sperrklinke 5 um ihre Lagerachse 6 ent¬ gegen dem Uhrzeigersinn schwenkt. Dadurch wird die Rastnase 9 der Sperrklinke 5 aus der Rastnase 10 der Schloßfalle 2 ausgehoben. Diese Position zeigt Fig. 2.A comparison of FIG. 1 and FIG. 2 shows that the driver pin 16 runs against the actuating surface 11 by rotating the drive element 14 in the direction shown by the arrow, and thus the pawl 5 counterclockwise about its bearing axis 6 pivots. As a result, the locking lug 9 of the pawl 5 is lifted out of the locking lug 10 of the lock latch 2. This position is shown in FIG. 2.
Fig. 3 zeigt, daß die in Öffnungsstellung befindliche Schloßfalle 2 die Sperrklinke 5 in der Aushebestellung hält, dazu ist an der Sperrklinke 5 in an sich bekannter Weise eine Haltefläche 17 ausgebildet, die sich auf einer Gegenfläche 17a am Schenkel der Schloßfalle 2 abstützt.Fig. 3 shows that the lock latch 2 in the open position holds the pawl 5 in the raised position, for this purpose a retaining surface 17 is formed on the pawl 5 in a manner known per se, which is supported on a counter surface 17a on the leg of the lock latch 2.
Fig. 1, Fig. 2 und Fig. 3 im Zusammenhang zeigen, daß der elektromotorische Antrieb 13 das Antriebselement 14 nur in der einen Richtung dreht, das Antriebselement 14 also nicht, auch nicht durch Federkraft, zurückgestellt wird, daß der Mitnehmerzapfen 16 nach erfolgtem Ausheben der Sperrklinke 5 an der Betätigungsfläche 11 vorbei- läuft, daß an der Sperrklinke 5 in Laufrichtung des Mitnehmerzapfens 16 gesehen mit Abstand hinter der Betätigungsfläche 1 1 eine Mitnehmer-Stoppfläche 18 angeordnet ist, die bei in Aushebestellung befindlicher Sperrklinke 5 in der Bewegungsbahn des Mitnehmerzapfens 16 liegt und diesen stoppt, bei in Einfallstellung befindlicher Sperrklinke 5 jedoch außerhalb der Bewegungsbahn des Mitnehmerzapfens 16 liegt, und daß der elektromotorische Antrieb 13 durch das Anlaufen des Mitnehmerzapfens 16 an der Stoppfläche 18 abgeschaltet wird (Blockbetrieb). Der Mitnehmerzapfen 16 veranlaßt die Sperrklinke 5 also zu einem geringfügigen Überhub über die eigentliche Aushebestellung hinaus, um so an der Betätigungsfläche 1 1 vorbeilaufen zu können. Dadurch ist sichergestellt, daß die Schloßfalle 2 auch wirklich unproblematisch öffnet.Fig. 1, Fig. 2 and Fig. 3 in connection show that the electromotive drive 13 rotates the drive element 14 only in one direction, that is, the drive element 14 is not, also not by spring force, reset that the driver pin 16 after the successful Lifting the pawl 5 past the actuating surface 11 runs that seen on the pawl 5 in the running direction of the driver pin 16 at a distance behind the actuating surface 1 1, a driver stop surface 18 is located, which is in the raised position pawl 5 in the path of movement of the driver pin 16 and stops it, in the collapsed position Pawl 5, however, lies outside the path of movement of the driver pin 16, and that the electromotive drive 13 is switched off by the driving of the driver pin 16 on the stop surface 18 (block operation). The driver pin 16 thus causes the pawl 5 to make a slight overstroke beyond the actual lifting position in order to be able to run past the actuating surface 11. This ensures that the lock latch 2 opens really unproblematically.
Fig. 3 macht deutlich, daß durch die Schwenkbewegung der Sperrklinke 5 um ihre Lagerachse 6 entgegen dem Uhrzeigersinn der Sperrklinken- Arm 19 mit der Mitneh¬ mer-Stoppfläche 18 in die Bewegungsbahn des Mitnehmerzapfens 16 hineinge¬ schwenkt wird. Nach einigen hundert Millisekunden an dieser Mitnehmer-Stoppflä¬ che 18 angehalten wird der elektromotorische Antrieb 13 abgeschaltet. Durch diesen Blockbetrieb des elektromotorischen Antriebs 13 kann auf Mikroschalter verzichtet werden. Gleichzeitig kann aber auch auf die im Stand der Technik bei den üblichen zweistufigen Schneckentrieben notwendige Rückholfeder verzichtet werden. Der elektromotorische Antrieb 13 kann also wesentlich leistungsschwächer ausgeführt sein als im Stand der Technik, da er ja nur die Sperrklinke 5 zu bewegen hat.3 makes it clear that the pivotal movement of the pawl 5 counter-clockwise about its bearing axis 6 causes the pawl arm 19 with the driver stop surface 18 to be pivoted into the path of movement of the driver pin 16. After a few hundred milliseconds at this driver stop surface 18, the electromotive drive 13 is switched off. This block operation of the electric motor drive 13 means that there is no need for microswitches. At the same time, however, the return spring required in the prior art for the conventional two-stage worm drives can also be dispensed with. The electromotive drive 13 can thus be made significantly less powerful than in the prior art, since it only has to move the pawl 5.
Bei allen mit Stellantrieben versehenen Kraftfahrzeug-Schlössern stellt ein Ausfall des elektromotorischen Antriebs ein besonderes Problem dar. Dazu ist der Anschlußpunkt 12 für die Notöffnung vorgesehen. Sollte aber der elektromotorische Antrieb 13 in der in Fig. 2 dargestellten Position oder einer etwas weiter in der eingezeichneten Drehrichtung vorlaufenden Position blockieren, so könnte die Sperrklinke 5 nicht mehr in ihre Einfallstellung zurückkehren. Entsprechend gilt, daß eine Blockierung des elektromotorischen Antriebs 13 in einer Stellung mit dem Mitnehmerzapfen 16 zwischen den in Fig. 1 und Fig. 3 dargestellten Positionen dazu führen würde, daß die Sperrklinke 5 komplett blockiert ist, also auch eine mechanische Notöffnung nicht mehr möglich wäre. Zur Lösung des zuvor erläuterten Problems ist im dargestellten Ausführungsbeispiel nun vorgesehen, daß der Mitnehmerzapfen 16 gegenüber dem Antriebselement 14 über einen auf einen geringen Winkel, vorzugsweise einen Winkel von 45°, begrenz¬ ten Kreisbogen relativ beweglich ist, daß das Antriebselement 14 einen diese Relativ¬ bewegung des Mitnehmerzapfens 16 erlaubenden Freischnitt 20 aufweist und daß der Mitnehmerzapfen 16 mittels einer Feder 21 in die in Drehrichtung des Antriebs¬ elements 14 voreilende Endstellung E vorgespannt ist. Der Freischnitt 20 kann als bogenförmiges Langloch oder auch als umfangseitig offener Kreisausschnitt ausge¬ führt sein oder auch eine andere funktional zweckmäßige Form aufweisen, wie das im vorliegenden Ausführungsbeispiel dargestellt ist. Die Feder 21 ist hier eine Biegefe¬ der.In all motor vehicle locks provided with actuators, failure of the electromotive drive is a particular problem. For this purpose, connection point 12 is provided for the emergency opening. However, if the electric motor drive 13 were to block in the position shown in FIG. 2 or a position advancing somewhat further in the direction of rotation shown, the pawl 5 could no longer return to its collapsed position. Accordingly, blocking the electromotive drive 13 in one position with the driver pin 16 between the positions shown in FIGS. 1 and 3 would result in the pawl 5 being completely blocked, so that a mechanical emergency opening would no longer be possible . To solve the problem explained above, it is now provided in the exemplary embodiment shown that the driver pin 16 is relatively movable relative to the drive element 14 by means of a circular arc limited to a small angle, preferably an angle of 45 °, that the drive element 14 has this relative ¬ movement of the driver pin 16 has a free cut 20 and that the driver pin 16 is biased by a spring 21 in the direction of rotation of the drive element 14 leading end position E. The free cut 20 can be designed as an arcuate elongated hole or as a circular cutout that is open on the circumference, or it can also have another functionally expedient shape, as shown in the present exemplary embodiment. The spring 21 is a bending spring here.
Der Mitnehmerzapfen 16 kann beispielsweise mit einem Ringflansch in einem kreis¬ bogenförmigen Langloch freiliegend, lediglich von der Feder 21 in Richtung der Endstellung E vorgespannt, angeordnet sein. Das dargestellte und insoweit bevor¬ zugte Ausführungsbeispiel zeigt aber auch insoweit noch eine besondere Konstruk¬ tion als nämlich vorgesehen ist, daß das Antriebselement 14 zwei in Richtung seiner Lagerachse 14a hintereinander angeordnete Teilelemente 22, 23 aufweist und daß ein Teilelement 22 mit dem elektromotorischen Antrieb 13 fest gekuppelt ist und den Freischnitt 20 aufweist und das andere Teilelement 23 den Mitnehmerzapfen 16 trägt. Diese in Fig. 4 dargestellte Technik mit Aufteilung eines scheibenförmigen Antriebs¬ elementes 14 in zwei koaxial liegende Teilelement 22, 23 ist für sich bei einem Stellan¬ trieb für ein Kraftfahrzeug-Türschloß, wenn auch in anderem Zusammenhang, be¬ kannt (DE - A - 40 15 522). Es handelt sich hier um eine konstruktiv einfach zu reali¬ sierende Lösung.The driver pin 16 can be arranged, for example, with an annular flange exposed in a circular, elongated hole, biased only by the spring 21 in the direction of the end position E. The exemplary embodiment shown and in this respect preferred also shows a special construction insofar as it is provided that the drive element 14 has two partial elements 22, 23 arranged one behind the other in the direction of its bearing axis 14a and that a partial element 22 with the electromotive drive 13 is firmly coupled and has the cutout 20 and the other sub-element 23 carries the driver pin 16. This technique, shown in FIG. 4, with the division of a disk-shaped drive element 14 into two coaxial partial elements 22, 23 is known per se in an actuator for a motor vehicle door lock, albeit in a different context (DE - A - 40 15 522). This is a solution that is simple to construct.
Ein Vergleich der Fig. 3 und 1 macht deutlich, daß durch die Federbelastung des Mit¬ nehmerzapfens 16 der Mitnehmerzapfen 16 zunächst an die Stoppfläche 18 anläuft, jedoch noch ohne unmittelbare Wirkung auf das Antriebselement 14. Dieses läuft zunächst weiter, der elektromotorische Antrieb 13 dreht es weiter in Pfeilrichtung, der Mitnehmerzapfen 16 weicht unter Belastung der Feder 21 aus, bleibt also einfach an der Stoppfläche 18 stehen. Erst dann, wenn das rückwärtige Ende des Freischnitts 20 (also das nacheilende Ende) erreicht wird, tritt Formschluß zwischen Mitnehmerzap¬ fen 16 und Antriebselement 14 ein und der elektromotorische Antrieb 13 läuft in den Block. Nunmehr schaltet der elektromotorische Antrieb 13 nach der eingestellten Verzö Όge* runεszeit ab.A comparison of FIGS. 3 and 1 makes it clear that the spring loading of the driving pin 16 causes the driving pin 16 to initially run against the stop surface 18, but without any direct effect on the drive element 14. This initially continues, the electromotive drive 13 rotates it continues in the direction of the arrow, the driver pin 16 yields under the load on the spring 21, so it simply stops at the stop surface 18. Only when the rear end of the cutout 20 (ie the trailing end) is reached, does the positive engagement between the driver pin 16 and the drive element 14 occur and the electromotive drive 13 runs into the Block. Now the electric motor drive 13 switches off after the set delay * run time.
Kehrt nun die Sperrklinke 5 in die in Fig. 1 dargestellte Einfallstellung zurück, so gibt der Sperrklinken- Arm 19 mit der Mitnehmer-Stoppfläche 18 den Mitnehmerzapfen 16 frei, dieser schnappt unter Wirkung der Feder 21 in Pfeilrichtung bis an die Endstel¬ lung E, also das voreilende Ende des Freischnitts 20 (wie in Fig. 3 gestrichelt darge¬ stellt). Damit hat der Mitnehmerzapfen 16 also die kritische Stelle mit der Blockierung des Sperrklinken- Arms 19 unter Federkraft, also ohne Anlaufen des elektromoto¬ rischen Antriebs 13 passiert. Ein Ausfall des elektromotorischen Antriebs 13 ist also in jedem Fall unkritisch. Dasselbe gilt im übrigen, wie Fig. 2 in Verbindung mit Fig. 1 deutlich macht, auch für das Vorbeilaufen des Mitnehmerzapfens 16 an der Betäti¬ gungsfläche 11 der Sperrklinke 5. If the pawl 5 now returns to the collapsed position shown in FIG. 1, the pawl arm 19 with the driver stop surface 18 releases the driver pin 16, which snaps under the action of the spring 21 in the direction of the arrow to the end position E, thus the leading end of the cutout 20 (as shown in dashed lines in FIG. 3). The driver pin 16 has thus passed the critical point with the blocking of the pawl arm 19 under spring force, that is to say without the electric motor 13 starting. A failure of the electric motor drive 13 is therefore not critical in any case. The same also applies, as shown in FIG. 2 in conjunction with FIG. 1, for the driving pin 16 to pass the actuating surface 11 of the pawl 5.

Claims

Patentansprüche: Claims:
1. Kraftfahrzeug-Klappenschloß od. dgl., insbesondere Heckklappenschloß,1. Motor vehicle flap lock or the like, in particular tailgate lock,
mit einer aus einer Öffnungsstellung in eine Raststellung und umgekehrt verlagerba¬ ren Schloßfalle (2) und einer die Schloßfalle (2) in der Raststellung durch Verrastung haltenden Sperrklinke (5), wobei die Sperrklinke (5) im Abstand von der Rastnase (9) für die Schloßfalle (2) eine Betätigungsfläche (11) aufweist,with a lock latch (2) which can be displaced from an open position to a latching position and vice versa and a pawl (5) which holds the latch latch (2) in the latching position by latching, the latch (5) being at a distance from the latching lug (9) for the lock latch (2) has an actuating surface (11),
mit einem elektromotorischen Antrieb (13) mit einem Antriebselement (14) und einem exzentrisch daran angeordneten Mitnehmerzapfen (16), wobei der Mitnehmerzapfen (16) durch Drehung des Antriebselementes (14) in einer Richtung an die Betäti¬ gungsfläche (11) anläuft und die Rastnase (9) der Sperrklinke (5) aus der Rastnase (10) der Schloßfalle (2) aushebt, und wobei die in Öffnungsstellung befindliche Schloßfalle (2) die Sperrklinke (5) in der Aushebestellung hält,With an electromotive drive (13) with a drive element (14) and an eccentrically arranged driver pin (16), the driver pin (16) by rotating the drive element (14) in one direction against the actuating surface (11) and the Lifts the catch (9) of the pawl (5) out of the catch (10) of the lock latch (2), and the lock latch (2) in the open position holds the pawl (5) in the lifted position,
dadurch gekennzeichnet,characterized,
daß der elektromotorische Antrieb (13) das Antriebselement (14) nur in der einen Richtung dreht, das Antriebselement (14) also auch nicht durch Federkraft zurückge¬ stellt wird,that the electromotive drive (13) only rotates the drive element (14) in one direction, that is to say the drive element (14) is not reset by spring force either,
daß der Mitnehmerzapfen (16) nach erfolgtem Ausheben der Sperrklinke (5) an der Betätigungsfläche (11) vorbeiläuft,that the driver pin (16) runs past the actuating surface (11) after the pawl (5) has been lifted out,
daß an der Sperrklinke (5) in Laufrichtung des Mitnehmerzapfens (16) gesehen mit Abstand hinter der Betätigungsfläche (11) eine Mitnehmer-Stoppfläche (18) ange¬ ordnet ist, die bei in Aushebestellung befindlicher Sperrklinke (5) in der Bewegungs¬ bahn des Mitnehmerzapfens (16) liegt und diesen stoppt, bei in Einfallstellung be¬ findlicher Sperrklinke (5) jedoch außerhalb der Bewegungsbahn des Mitnehmer¬ zapfens ( 16) liegt, undthat on the pawl (5) in the running direction of the driver pin (16), seen at a distance behind the actuating surface (11), a driver stop surface (18) is arranged which, when the pawl (5) is in the raised position, in the path of movement of the Driver pin (16) lies and stops it, but when the pawl (5) is in the down position it lies outside the path of movement of the driver pin (16), and
daß der elektromotorische Antrieb (13) durch das Anlaufen des Mitnehmerzapfens (16) an der Stoppfläche (18) abgeschaltet wird (Blockbetrieb). that the electric motor drive (13) is switched off by the start of the driver pin (16) on the stop surface (18) (block operation).
2. Kraftfahrzeug-Klappenschloß nach Anspruch 1, dadurch gekennzeichnet,2. Motor vehicle flap lock according to claim 1, characterized in
daß der Mitnehmerzapfen (16) gegenüber dem Antriebselement ( 14) über einen auf einen geringen Winkel begrenzten Kreisbogen relativ - beweglich ist,that the driver pin (16) is relatively movable relative to the drive element (14) over a circular arc limited to a small angle,
daß das Antriebselement (14) einen die Relativbewegung des Mitnehmerzapfens (16) erlaubenden Freischnitt (20) aufweist undthat the drive element (14) has a free cut (20) allowing the relative movement of the driver pin (16) and
daß der Mitnehmerzapfen (16) mittels einer Feder (21 ) in die in Drehrichtung des An¬ triebselements (14) voreilende Endstellung (E) vorgespannt ist.that the driver pin (16) is prestressed by means of a spring (21) into the end position (E) leading in the direction of rotation of the drive element (14).
3. Kraftfahrzeug-Klappenschloß nach Anspruch 2, dadurch gekennzeichnet,3. Motor vehicle flap lock according to claim 2, characterized in
daß das Antriebselement (14) zwei in Richtung seiner Lagerachse ( 14a) hintereinan¬ der angeordnete Teilelemente (22, 23) aufweist undthat the drive element (14) has two partial elements (22, 23) arranged one behind the other in the direction of its bearing axis (14a) and
daß ein Teilelement (22) mit dem elektromotorischen Antrieb (13) fest gekuppelt ist und den Freischnitt (20) aufweist und das andere Teilelement (23) den Mitnehmer¬ zapfen (16) trägt.that a partial element (22) is firmly coupled to the electric motor drive (13) and has the free cut (20) and the other partial element (23) carries the driver pin (16).
4. Kraftfahrzeug-Klappenschloß nach Anspruch 1, dadurch gekennzeichnet, daß eine die Schloßfalle (2) und die Sperrklinke (5) aufeinanderzu vorspannende Feder (7) vorgesehen ist.4. Motor vehicle flap lock according to claim 1, characterized in that one of the lock latch (2) and the pawl (5) to each other biasing spring (7) is provided.
5. Kraftfahrzeug-Klappenschloß nach Anspruch 2, dadurch gekennzeichnet, daß eine die Schloßfalle (2) und die Sperrklinke (5) aufeinanderzu vorspannende Feder (7) vorgesehen ist.5. Motor vehicle flap lock according to claim 2, characterized in that one of the lock latch (2) and the pawl (5) to each other biasing spring (7) is provided.
6. Kraftfahrzeug-Klappenschloß nach Anspruch 1, daß das Antriebselement (14) als Scheibe aus *ge>e* führt ist.6. Motor vehicle flap lock according to claim 1, that the drive element (14) is a disk from * ge> e * leads.
7. Kraftfahrzeug-Klappenschloß nach Anspruch 2, daß das Antriebselement (14) als7. Motor vehicle flap lock according to claim 2, that the drive element (14) as
Scheibe ausgeführt ist. Disk is executed.
8. Kraftfahrzeug-Klappenschloß nach Anspruch 3, daß das Antriebselement (14) als Scheibe ausgeführt ist.8. Motor vehicle flap lock according to claim 3, that the drive element (14) is designed as a disc.
9. Kraftfahrzeug-Klappenschloß nach Anspruch 2, dadurch gekennzeichnet, daß der Kreisbogen auf einen Winkel von 45° begrenzt ist. 9. Motor vehicle flap lock according to claim 2, characterized in that the circular arc is limited to an angle of 45 °.
EP96904783A 1995-02-20 1996-02-14 Motor vehicle flap lock, especially tailgate flap lock Expired - Lifetime EP0811101B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19505779 1995-02-20
DE19505779A DE19505779A1 (en) 1995-02-20 1995-02-20 Motor vehicle flap lock, in particular tailgate lock
PCT/EP1996/000641 WO1996026341A1 (en) 1995-02-20 1996-02-14 Motor vehicle flap lock, especially tailgate flap lock

Publications (2)

Publication Number Publication Date
EP0811101A1 true EP0811101A1 (en) 1997-12-10
EP0811101B1 EP0811101B1 (en) 1998-09-16

Family

ID=7754507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96904783A Expired - Lifetime EP0811101B1 (en) 1995-02-20 1996-02-14 Motor vehicle flap lock, especially tailgate flap lock

Country Status (11)

Country Link
US (1) US5938253A (en)
EP (1) EP0811101B1 (en)
JP (1) JPH11500198A (en)
KR (1) KR19980702291A (en)
CN (1) CN1175989A (en)
BR (1) BR9607298A (en)
DE (2) DE19505779A1 (en)
ES (1) ES2122798T3 (en)
MX (1) MX9706343A (en)
WO (1) WO1996026341A1 (en)
ZA (1) ZA961023B (en)

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DE19505779A1 (en) 1996-08-29
ZA961023B (en) 1996-08-29
KR19980702291A (en) 1998-07-15
ES2122798T3 (en) 1998-12-16
WO1996026341A1 (en) 1996-08-29
DE59600573D1 (en) 1998-10-22
BR9607298A (en) 1997-11-25
JPH11500198A (en) 1999-01-06
US5938253A (en) 1999-08-17
EP0811101B1 (en) 1998-09-16
CN1175989A (en) 1998-03-11
MX9706343A (en) 1997-11-29

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