EP0496039A1 - Door lock for motor vehicle - Google Patents

Door lock for motor vehicle Download PDF

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Publication number
EP0496039A1
EP0496039A1 EP91117436A EP91117436A EP0496039A1 EP 0496039 A1 EP0496039 A1 EP 0496039A1 EP 91117436 A EP91117436 A EP 91117436A EP 91117436 A EP91117436 A EP 91117436A EP 0496039 A1 EP0496039 A1 EP 0496039A1
Authority
EP
European Patent Office
Prior art keywords
lever
blocking
bearing pin
pawl
pawl arrangement
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
EP91117436A
Other languages
German (de)
French (fr)
Other versions
EP0496039B1 (en
Inventor
Horst Werner Dr. Sterzenbach
Frank Kleefeldt
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.)
Kiekert AG
Original Assignee
Kiekert AG
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 Kiekert AG filed Critical Kiekert AG
Publication of EP0496039A1 publication Critical patent/EP0496039A1/en
Application granted granted Critical
Publication of EP0496039B1 publication Critical patent/EP0496039B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/26—Cooperation between bolts and detents
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/0086—Toggle levers
    • 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
    • Y10S292/27—Disconnectable handle
    • 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
    • Y10T292/1083—Rigid
    • Y10T292/1092—Swinging catch

Definitions

  • the invention relates to a motor vehicle door lock with a rotary latch which can be rotated about a rotary latch bolt and a pawl arrangement which can be pivoted about a bearing bolt, in which, in the closed state of the motor vehicle door, a lock holder fastened to the door jamb surrounds a lock holder recess in the rotary latch and in which the pawl arrangement in the closed state of the motor vehicle door has a locking surface Counter locking surface on the catch in the locking position of the pawl arrangement with a mating contact.
  • the term mating surface designates a sufficiently complete surface contact that reduces the surface pressure when the rotary latch is locked.
  • the pawl can be actuated via an external operating lever or an internal operating lever in such a way that it leaves its locked position when the motor vehicle door is closed and locks the catch. It goes without saying that the locking surface and the counter locking surface on the pawl arrangement or on the rotary latch are pressed against one another with a not inconsiderable force when the motor vehicle door is closed. This force results from the fact that the motor vehicle door is pressed back resiliently by the soft-elastic door seal in the closed state and is appropriately supported via the rotary latch on the lock holder.
  • the pawl arrangement is designed as a one-piece, rigid pawl.
  • the restricted area at this The pawl makes an arcuate movement when the pawl is actuated.
  • the blocking surface is correspondingly curved, the counter-blocking surface is curved in a complementary manner. In another embodiment, it can also have a slightly different curvature with respect to the pawl, with sufficient surface contact remaining.
  • the actuating force for the pawl arrangement when the door is opened is relatively large because, when the door is closed, the coefficient of friction of the static friction prevails between the blocking surface and the counter-blocking surface.
  • the resulting frictional force is relatively large. It must first be overcome when the pawl opens. But the sliding friction to be overcome afterwards also requires a relatively large additional force for the actuation of the pawl until the catch is unlocked.
  • the invention has for its object to provide a motor vehicle door lock in which the pawl arrangement is very easy to move during the opening movement of the motor vehicle door.
  • the invention teaches that the pawl arrangement is designed as a lever mechanism with a bearing pin-side lever which can be pivoted about the bearing pin, and a lever carrying the blocking surface, which unites two levers via a pawl joint with a joint axis parallel to the bearing pin are that the lever carrying the locking surface a locking surface lever arm and a bearing pin lever arm and on the bearing pin lever arm a bearing pin receptacle with switching between a locking position stop and a Bending stop has that when the pawl arrangement is opened when the motor vehicle door is closed, the lever bearing the locking surface bends relative to the lever on the bolt side and the locking position stop is released from the bearing pin and the kinking stop comes into contact with the bearing bolt and the mating surface contact can thus be converted into a line contact.
  • the catch when the motor vehicle door is opened, the catch is unlocked by kinking the pawl arrangement.
  • the lever mechanism which forms the pawl arrangement according to the invention, is rigid in the locking position, but can be easily bent when the pawl arrangement is unlocked. This can be done in a number of ways.
  • a preferred embodiment, in which the pawl arrangement is subjected to a tensile load in the locking position, is characterized in this context in that the lever on the bearing pin side and the lever carrying the locking surface are arranged one behind the other with its locking surface lever arm, that the lever arm on the bearing bolt side of the lever carrying the locking surface with a fork as a bearing pin receptacle, which defines the switching game, and that in the locking position with a mating surface contact of the locking surface and counter locking surface, the line running in the plane of the pawl arrangement connecting line between the axis of the bearing pin, the axis of the pawl joint and the contact line of the beginning of the kink itself adjusting line contact runs in a straight line.
  • Another embodiment in which the pawl arrangement is subjected to a pressure load in the locking position is characterized in this context in that the lever on the bearing pin side and the lever carrying the locking surface are arranged one above the other that the bearing pin has a recess in the lever carrying the locking surface, which forms the bearing pin receptacle and defines the switching play, and that in the locking position with a mating surface contact of the locking surface and counter locking surface, the connecting line running in a plane parallel to the pawl arrangement between the The axis of the bearing pin, the axis of the pawl joint and the contact line of the line contact which arises at the beginning of the bend runs in a straight line.
  • the pawl arrangement it is expedient for the pawl arrangement to have a return spring arrangement which counteracts the buckling.
  • the invention is based on the finding that when the pawl arrangement is opened, a rolling friction between the locking surface and the counter-locking surface can be initiated or superposed when the kink, if the one-piece and rigid pawl in the known embodiment is actuated by a lever mechanism in the manner described and way is replaced.
  • the rolling friction significantly reduces the force required to initiate the pawl opening movement.
  • the further opening can be continued with surprisingly little force until the catch is unlocked, because the kink between the lever on the bearing pin side and the lever carrying the locking surface increases as the opening movement of the pawl arrangement continues, the angle of Kink becomes smaller.
  • the motor vehicle door lock 1 shown in the figures has a rotary latch 3 which can be rotated about a pivot bolt 2 and a pawl arrangement 5, 6 which can be pivoted about a bearing bolt 4.
  • a lock holder 7 fastened to the door post of the motor vehicle fits into a lock holder recess in the rotary latch 3 one as shown in the figures. 1, 2 and 4 that the pawl arrangement 5, 6 in the closed state of the motor vehicle door with a blocking surface 8 engages a counter-blocking surface 9 on the catch 3 in the blocking position of the pawl arrangement 5, 6 with a mating surface contact.
  • the pawl arrangement 5, 6 is a lever mechanism with a lever 5 on the bearing pin side, which lever can be pivoted about the bearing pin 4, and one is the blocking surface 8 supporting lever 6 executed.
  • the two levers 5, 6 are united by means of a pawl joint 10 with an articulated axis parallel to the bearing pin 4.
  • the lever 6 carrying the locking surface 8 is a two-armed lever and has a locking surface lever arm 11 and a lever arm 12 on the bearing pin side.
  • a bearing pin receptacle 13 with switching play between a locking position stop 14 and a bend stop 15 is realized on the bearing arm side lever arm 12.
  • the pawl arrangement 5, 6 can be actuated via the so-called external actuation or the so-called internal actuation. From a comparative view of FIGS. 2 and 3 it can be seen that when the pawl arrangement 5, 6 opens when the motor vehicle door is closed, the lever 6 carrying the locking surface 8 bends relative to the lever 5 on the bolt side and the locking position stop 14 of the bearing pin receptacle 13 is released from the bearing bolt 4 and the bend stop 15 comes to rest on the bearing pin 4. This happens more or less suddenly. In this way, the mating surface contact, which can be seen in FIGS. 1, 2 and 4 between the blocking surface 8 and the counter-blocking surface 9, is converted into a line contact 16. This can be seen in Fig. 3. The line contact that occurs when the pawl arrangement 5, 6 begins to buckle has also been indicated at 16 in FIGS. 1, 2 and 4.
  • 1 to 3 is the embodiment in which the pawl arrangement 5, 6 experiences a tensile load in the locked position.
  • the bearing pin lever 5 and the locking surface 8 carrying lever 6 with his Pawl lever arm 11 are arranged one behind the other that the bearing arm-side lever arm 12, of the lever 6 carrying the locking surface 6 with a fork, which forms the bearing pin receptacle 13 and defines the switching play.
  • 1 and 2 that in the locking position the line 17 running in the plane of the pawl arrangement 5, 6 runs between the axis of the bearing pin 4, the axis of the pawl joint 10 and the contact line of the line contact 16 in a straight line.
  • the locking surface 8 and the counter locking surface 9 are still in this locking position with a mating surface. 3 shows the conditions at the beginning of the bending movement.
  • the pawl arrangement 5, 6 is subjected to a pressure load in the locked position.
  • the peg-side lever 5 and the lever 6 carrying the locking surface 8 are arranged one above the other.
  • the bearing pin 4 includes a recess in the lever 6 carrying the locking surface 8, which represents the bearing pin receptacle 13 and defines the switching game.
  • the arrangement is such that in this locking position the connecting line 17 running parallel to the level of the pawl arrangement 5, 6 runs between the axis of the bearing pin 4, the axis of the pawl joint 10 and the contact line of the line contact 16 in a straight line.

Landscapes

  • Lock And Its Accessories (AREA)
  • Elevator Door Apparatuses (AREA)

Abstract

Motor-vehicle door lock (1) having a rotary latch (3) rotatable about a rotary-latch bolt (2) and a blocking-pawl arrangement (5, 6) pivotable about a bearing bolt (4), in which, in the closed state of the motor-vehicle door, a lock holder (7) fastened to the door post engages into a lock-holder recess of the rotary latch (3), and in which, in the closed state of the motor-vehicle door, the blocking-pawl arrangement (5, 6) engages with fitting-surface contact by means of a blocking surface (8) behind a counter blocking surface (9) on the rotary latch (3) in the blocking position of the blocking-pawl arrangement (5, 6). The blocking-pawl arrangement (5, 6) is designed as a lever mechanism having a lever (5), located on the same side as the bearing bolt and pivotable about the bearing bolt (4), and a lever (6) carrying the blocking surface (8). The two levers (5, 6) are combined so as to be foldable relative to one another by means of a blocking-pawl joint (10) having a joint axis parallel to the bearing bolt (4). The lever (6) carrying the blocking surface (8) has a blocking-surface lever arm (11), a lever arm (12) located on the same side as the bearing bolt and, on the lever arm (12) located on the same side as the bearing bolt, a bearing-bolt receptacle (13) with switching play between a blocking-position stop (14) and a folding stop (15). During an opening movement of the blocking-pawl arrangement (5, 6), with the motor-vehicle door closed, the lever (6) carrying the blocking surface (8) folds relative to the lever (5) located on the same side as the bolt. The blocking-position stop (14) comes free from the bearing bolt (4). The folding stop (15) comes to bear on the bearing bolt (4). The fitting-surface contact can thereby be changed over to a linear contact (16). <IMAGE>

Description

Die Erfindung betrifft einen Kraftfahrzeugtürverschluß mit um einen Drehfallenbolzen drehbarer Drehfalle und um einen Lagerbolzen schwenkbarer Sperrklinkenanordnung, bei dem im geschlossenen Zustand der Kraftfahrzeugtür ein am Türpfosten befestigter Schloßhalter in eine Schloßhalterausnehmung der Drehfalle einfaßt und bei dem die Sperrklinkenanordnung im geschlossenen Zustand der Kraftfahrzeugtür mit einer Sperrfläche eine Gegensperrfläche an der Drehfalle in Sperrposition der Sperrklinkenanordnung mit paßflächigem Kontakt hinterfaßt. Der Begriff paßflächig bezeichnet einen ausreichend vollständigen Flächenkontakt, der die Flächenpressung im gesperrten Zustand der Drehfalle reduziert. Bei einem solchen Kraftfahrzeugtürverschluß kann die Sperrklinke über einen Außenbetätigungshebel oder über einen Innenbetätigungshebel derart betätigt werden, daß sie bei geschlossener Kraftfahrzeugtür ihre Sperrposition verläßt und die Drehfalle einsperrt. Es versteht sich, daß die Sperrfläche und die Gegensperrfläche an der Sperrklinkenanordnung bzw. an der Drehfalle im geschlossenen Zustand der Kraftfahrzeugtür mit einer nicht unbeachtlichen Kraft gegeneinander gedrückt werden. Diese Kraft resultiert aus der Tatsache, daß die Kraftfahrzeugtür im geschlossenen Zustand von der weichelastischen Türdichtung federnd zurückgedrückt wird und über die Drehfalle an dem Schloßhalter eine entsprechende Abstützung erfährt.The invention relates to a motor vehicle door lock with a rotary latch which can be rotated about a rotary latch bolt and a pawl arrangement which can be pivoted about a bearing bolt, in which, in the closed state of the motor vehicle door, a lock holder fastened to the door jamb surrounds a lock holder recess in the rotary latch and in which the pawl arrangement in the closed state of the motor vehicle door has a locking surface Counter locking surface on the catch in the locking position of the pawl arrangement with a mating contact. The term mating surface designates a sufficiently complete surface contact that reduces the surface pressure when the rotary latch is locked. In such a motor vehicle door lock, the pawl can be actuated via an external operating lever or an internal operating lever in such a way that it leaves its locked position when the motor vehicle door is closed and locks the catch. It goes without saying that the locking surface and the counter locking surface on the pawl arrangement or on the rotary latch are pressed against one another with a not inconsiderable force when the motor vehicle door is closed. This force results from the fact that the motor vehicle door is pressed back resiliently by the soft-elastic door seal in the closed state and is appropriately supported via the rotary latch on the lock holder.

Bei dem aus der Praxis bekannten Kraftfahrzeugtürverschluß, von dem die Erfindung ausgeht, ist die Sperrklinkenanordnung als eine einteilige, starre Sperrklinke ausgebildet. Die Sperrfläche an dieser Sperrklinke vollführt eine bogenförmige Bewegung, wenn die Sperrklinke betätigt wird. Die Sperrfläche ist entsprechend bogenförmig ausgebildet, die Gegensperrfläche ist komplementär gekrümmt. Sie kann bei einer anderen Ausführungsform in bezug auf die Sperrklinke auch eine leicht unterschiedliche Krümmung aufweisen, wobei ein ausreichender Flächenkontakt bestehen bleibt. In beiden Fällen ist die Betätigungskraft für die Sperrklinkenanordnung beim Öffnen der Tür verhältnismäßig groß, weil bei geschlossener Tür zwischen der Sperrfläche und der Gegensperrfläche zunächst der Reibungskoeffizient der ruhenden Reibung herrscht. Die daraus resultierende Reibungskraft ist verhältnismäßig groß. Sie muß bei der Öffnungsbewegung der Sperrklinke zunächst überwunden werden. Aber auch die danach zu überwindende Gleitreibung verlangt eine verhältnismäßig große weitere Kraft für die Betätigung der Sperrklinke bis zur Entsperrung der Drehfalle.In the motor vehicle door lock known from practice, from which the invention is based, the pawl arrangement is designed as a one-piece, rigid pawl. The restricted area at this The pawl makes an arcuate movement when the pawl is actuated. The blocking surface is correspondingly curved, the counter-blocking surface is curved in a complementary manner. In another embodiment, it can also have a slightly different curvature with respect to the pawl, with sufficient surface contact remaining. In both cases, the actuating force for the pawl arrangement when the door is opened is relatively large because, when the door is closed, the coefficient of friction of the static friction prevails between the blocking surface and the counter-blocking surface. The resulting frictional force is relatively large. It must first be overcome when the pawl opens. But the sliding friction to be overcome afterwards also requires a relatively large additional force for the actuation of the pawl until the catch is unlocked.

Der Erfindung liegt die Aufgabe zugrunde, einen Kraftfahrzeugtürverschluß zu schaffen, bei der bei der Öffnungsbewegung der Kraftfahrzeugtür die Sperrklinkenanordnung sehr leicht bewegbar ist.The invention has for its object to provide a motor vehicle door lock in which the pawl arrangement is very easy to move during the opening movement of the motor vehicle door.

Zur Lösung dieser Aufgabe lehrt die Erfindung, daß die Sperrklinkenanordnung als Hebelgetriebe mit einem lagerbolzenseitigen Hebel, der um den Lagerbolzen schwenkbar ist, und einem die Sperrfläche tragenden Hebel ausgeführt ist, welche beiden Hebel über ein Sperrklinkengelenk mit zum Lagerbolzen paralleler Gelenkachse, gegeneinander abknickbar, vereinigt sind, daß der die Sperrfläche tragende Hebel einen Sperrflächenhebelarm und einen lagerbolzenseitigen Hebelarm sowie an dem lagerbolzenseitigen Hebelarm eine Lagerbolzenaufnahme mit Schaltspiel zwischen einem Sperrstellunganschlag und einem Abknickanschlag aufweist, daß bei einer Öffnungsbewegung der Sperrklinkenanordnung bei geschlossener Kraftfahrzeugtür der die Sperrfläche tragende Hebel gegenüber dem bolzenseitigen Hebel abgeknickt und der Sperrstellungsanschlag von dem Lagerbolzen freikommt sowie der Abknickanschlag an dem Lagerbolzen zur Anlage kommt und dadurch der paßflächige Kontakt in einen Linienkontat überführbar ist. - Erfindungsgemäß wird bei der Öffnung der Kraftfahrzeugtür die Entsperrung der Drehfalle durch ein Abknicken der Sperrklinkenanordnung eingeleitet. Es versteht sich, daß das Hebelgetriebe, welches erfindungsgemäß die Sperrklinkenanordnung bildet, in der Sperrstellung starr, aber bei entsperrender Betätigung der Sperrklinkenanordnung leicht abknickbar ist. Das kann auf verschiedene Weise verwirklicht werden. Eine bevorzugte Ausführungsform, bei der die Sperrklinkenanordnung in Sperrstellung eine Zugbelastung erfährt, ist in diesem Zusammenhang dadurch gekennzeichnet, daß der lagerbolzenseitige Hebel und der die Sperrfläche tragende Hebel mit seinem Sperrflächenhebelarm hintereinander angeordnet sind, daß der lagerbolzenseitige Hebelarm des die Sperrfläche tragenden Hebels mit einer Gabel als Lagerbolzenaufnahme, die das Schaltspiel definiert, umfaßt, und daß in der Sperrstellung bei paßflächigem Kontakt von Sperrfläche und Gegensperrfläche die in der Ebene der Sperrklinkenanordnung verlaufende Verbindungslinie zwischen der Achse des Lagerbolzens, der Achse des Sperrklinkengelenkes und der Kontaktlinie des mit dem Beginn der Abknickung sich einstellenden Linienkontaktes in einer Geraden verläuft. Eine andere Ausführungsform, bei der die Sperrklinkenanordnung in der Sperrstellung eine Druckbelastung erfährt, ist in diesem Zusammenhang dadurch gekennzeichnet, daß der lagerbolzenseitige Hebel und der die Sperrfläche tragende Hebel übereinander angeordnet sind, daß der Lagerbolzen eine Ausnehmung in dem die Sperrfläche tragenden Hebel, die die Lagerbolzenaufnahme bildet und das Schaltspiel definiert, durchfaßt, und daß in der Sperrstellung bei paßflächigem Kontakt von Sperrfläche und Gegensperrfläche die in einer Ebene parallel zur Sperrklinkenanordnung verlaufende Verbindungslinie zwischen der Achse des Lagerbolzens, der Achse des Sperrklinkengelenkes und der Kontaktlinie des mit dem Beginn der Abknickung sich einstellenden Linienkontaktes in einer Geraden verläuft. In allen Fällen ist es zweckmäßig, daß die Sperrklinkenanordnung eine Rückstellfederanordnung aufweist, die der Ausknickung entgegenwirkt.To achieve this object, the invention teaches that the pawl arrangement is designed as a lever mechanism with a bearing pin-side lever which can be pivoted about the bearing pin, and a lever carrying the blocking surface, which unites two levers via a pawl joint with a joint axis parallel to the bearing pin are that the lever carrying the locking surface a locking surface lever arm and a bearing pin lever arm and on the bearing pin lever arm a bearing pin receptacle with switching between a locking position stop and a Bending stop has that when the pawl arrangement is opened when the motor vehicle door is closed, the lever bearing the locking surface bends relative to the lever on the bolt side and the locking position stop is released from the bearing pin and the kinking stop comes into contact with the bearing bolt and the mating surface contact can thus be converted into a line contact. - According to the invention, when the motor vehicle door is opened, the catch is unlocked by kinking the pawl arrangement. It is understood that the lever mechanism, which forms the pawl arrangement according to the invention, is rigid in the locking position, but can be easily bent when the pawl arrangement is unlocked. This can be done in a number of ways. A preferred embodiment, in which the pawl arrangement is subjected to a tensile load in the locking position, is characterized in this context in that the lever on the bearing pin side and the lever carrying the locking surface are arranged one behind the other with its locking surface lever arm, that the lever arm on the bearing bolt side of the lever carrying the locking surface with a fork as a bearing pin receptacle, which defines the switching game, and that in the locking position with a mating surface contact of the locking surface and counter locking surface, the line running in the plane of the pawl arrangement connecting line between the axis of the bearing pin, the axis of the pawl joint and the contact line of the beginning of the kink itself adjusting line contact runs in a straight line. Another embodiment in which the pawl arrangement is subjected to a pressure load in the locking position is characterized in this context in that the lever on the bearing pin side and the lever carrying the locking surface are arranged one above the other that the bearing pin has a recess in the lever carrying the locking surface, which forms the bearing pin receptacle and defines the switching play, and that in the locking position with a mating surface contact of the locking surface and counter locking surface, the connecting line running in a plane parallel to the pawl arrangement between the The axis of the bearing pin, the axis of the pawl joint and the contact line of the line contact which arises at the beginning of the bend runs in a straight line. In all cases, it is expedient for the pawl arrangement to have a return spring arrangement which counteracts the buckling.

Die Erfindung geht von der Erkenntnis aus, daß bei der Öffnungsbewegung der Sperrklinkenanordnung eine mit der Abknickung eine rollende Reibung zwischen der Sperrfläche und der Gegensperrfläche eingeleitet oder superponiert werden kann, wenn die bei der bekannten Ausführungsform einteilige und starre Sperrklinke durch ein Hebelgetriebe in der beschriebenen Art und Weise ersetzt wird. Die rollende Reibung reduziert erheblich die Kraft, die für die Einleitung der Öffnungsbewegung der Sperrklinke erforderlich ist. Im Anschluß an diese Einleitung der Öffnungsbewegung der Sperrklinkenanordnung kann die weitere Öffnung bis zur Entsperrung der Drehfalle mit überraschend geringer Kraft fortgesetzt werden, weil die Abknickung zwischen dem lagerbolzenseitigen Hebel und dem die Sperrfläche tragenden Hebel bei Fortsetzung der Öffnungsbewegung der Sperrklinkenanordnung größer wird, der Winkel der Abknickung also kleiner wird.The invention is based on the finding that when the pawl arrangement is opened, a rolling friction between the locking surface and the counter-locking surface can be initiated or superposed when the kink, if the one-piece and rigid pawl in the known embodiment is actuated by a lever mechanism in the manner described and way is replaced. The rolling friction significantly reduces the force required to initiate the pawl opening movement. Following this initiation of the opening movement of the pawl arrangement, the further opening can be continued with surprisingly little force until the catch is unlocked, because the kink between the lever on the bearing pin side and the lever carrying the locking surface increases as the opening movement of the pawl arrangement continues, the angle of Kink becomes smaller.

Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlicher erläutert. Es zeigen in schematischer Darstellung

Fig. 1
die Ansicht der wesentlichen Teile eines erfindungsgemäßen Kraftfahrzeugtürverschlusses,
Fig. 2
in weiterer Schematisierung einen vergrößerten Ausschnitt aus dem Gegenstand der Fig. 1,
Fig. 3
den Gegenstand nach Fig. 2 in anderer Funktionsstellung und
Fig. 4
eine andere Ausführungsform des Gegenstandes der Fig. 1.
In the following, the invention will be explained in more detail with reference to a drawing showing only one embodiment. They show a schematic representation
Fig. 1
the view of the essential parts of a motor vehicle door lock according to the invention,
Fig. 2
in a further schematic an enlarged section from the subject of FIG. 1,
Fig. 3
2 in another functional position and
Fig. 4
another embodiment of the object of FIG. 1st

Der in den Figuren dargestellte Kraftfahrzeugtürverschluß 1 besitzt eine um einen Drehfallenbolzen 2 drehbare Drehfalle 3 und eine um einen Lagerbolzen 4 schwenkbare Sperrklinkenanordnung 5, 6. Im geschlossenen Zustand der Kraftfahrzeugtür faßt ein am nicht gezeichneten Türpfosten des Kraftfahrzeuges befestigter Schloßhalter 7 in eine Schloßhalterausnehmung der Drehfalle 3 ein, wie es in den Figuren dargestellt ist. Man erkennt in den Fig. 1, 2 und 4, daß die Sperrklinkenanordnung 5, 6 im geschlossenen Zustand der Kraftfahrzeugtür mit einer Sperrfläche 8 eine Gegensperrfläche 9 an der Drehfalle 3 in Sperrposition der Sperrklinkenanordnung 5, 6 mit paßflächigem Kontakt hinterfaßt.The motor vehicle door lock 1 shown in the figures has a rotary latch 3 which can be rotated about a pivot bolt 2 and a pawl arrangement 5, 6 which can be pivoted about a bearing bolt 4. In the closed state of the motor vehicle door, a lock holder 7 fastened to the door post of the motor vehicle (not shown) fits into a lock holder recess in the rotary latch 3 one as shown in the figures. 1, 2 and 4 that the pawl arrangement 5, 6 in the closed state of the motor vehicle door with a blocking surface 8 engages a counter-blocking surface 9 on the catch 3 in the blocking position of the pawl arrangement 5, 6 with a mating surface contact.

Bei dem dargestellten Kraftfahrzeugtürverschluß 1 ist die Sperrklinkenanordnung 5, 6 als Hebelgetriebe mit einem lagerbolzenseitigen Hebel 5, der um den Lagerbolzen 4 schwenkbar ist, und einem die Sperrfläche 8 tragenden Hebel 6 ausgeführt. Die beiden Hebel 5, 6 sind über ein Sperrklinkengelenk 10 mit zum Lagerbolzen 4 paralleler Gelenkachse gegeneinander abknickbar, vereinigt. Der die Sperrfläche 8 tragende Hebel 6 ist ein zweiarmiger Hebel und besitzt einen Sperrflächenhebelarm 11 sowie einen lagerbolzenseitigen Hebelarm 12. An den lagerbolzenseitigen Hebelarm 12 ist eine Lagerbolzenaufnahme 13 mit Schaltspiel zwischen einem Sperrstellungsanschlag 14 und einem Abknickanschlag 15 verwirklicht.In the motor vehicle door lock 1 shown, the pawl arrangement 5, 6 is a lever mechanism with a lever 5 on the bearing pin side, which lever can be pivoted about the bearing pin 4, and one is the blocking surface 8 supporting lever 6 executed. The two levers 5, 6 are united by means of a pawl joint 10 with an articulated axis parallel to the bearing pin 4. The lever 6 carrying the locking surface 8 is a two-armed lever and has a locking surface lever arm 11 and a lever arm 12 on the bearing pin side. A bearing pin receptacle 13 with switching play between a locking position stop 14 and a bend stop 15 is realized on the bearing arm side lever arm 12.

Die Sperrklinkenanordnung 5, 6 kann über die sogenannte Außenbetätigung oder die sogenannte Innenbetätigung betätigt werden. Aus einer vergleichenden Betrachtung der Fig. 2 und 3 entnimmt man, daß bei einer Öffnungsbewegung der Sperrklinkenanordnung 5, 6 bei geschlossener Kraftfahrzeugtür der die Sperrfläche 8 tragende Hebel 6 gegenüber dem bolzenseitigen Hebel 5 abknickt und der Sperrstellungsanschlag 14 der Lagerbolzenaufnahme 13 von dem Lagerbolzen 4 freikommt sowie der Abknickanschlag 15 an dem Lagerbolzen 4 zur Anlage kommt. Das geschieht mehr oder weniger sprungartig. Auf diese Weise wird der paßflächige Kontakt, den man in den Fig. 1, 2 und 4 zwischen der Sperrfläche 8 und der Gegensperrfläche 9 erkennt, in einen Linienkontakt 16 überführt. Dieser ist in Fig. 3 erkennbar. Der Linienkontakt, der mit dem Beginn des Ausknickens der Sperrklinkenanordnung 5, 6 entsteht, wurde auch in den Fig. 1, 2 und 4 mit 16 angedeutet.The pawl arrangement 5, 6 can be actuated via the so-called external actuation or the so-called internal actuation. From a comparative view of FIGS. 2 and 3 it can be seen that when the pawl arrangement 5, 6 opens when the motor vehicle door is closed, the lever 6 carrying the locking surface 8 bends relative to the lever 5 on the bolt side and the locking position stop 14 of the bearing pin receptacle 13 is released from the bearing bolt 4 and the bend stop 15 comes to rest on the bearing pin 4. This happens more or less suddenly. In this way, the mating surface contact, which can be seen in FIGS. 1, 2 and 4 between the blocking surface 8 and the counter-blocking surface 9, is converted into a line contact 16. This can be seen in Fig. 3. The line contact that occurs when the pawl arrangement 5, 6 begins to buckle has also been indicated at 16 in FIGS. 1, 2 and 4.

Bei den Fig. 1 bis 3 handelt es sich um die Ausführungsform, bei der die Sperrklinkenanordnung 5, 6 in Sperrstellung eine Zugbelastung erfährt. In der Fig. 2 erkennt man deutlich, daß der lagerbolzenseitige Hebel 5 und der die Sperrfläche 8 tragende Hebel 6 mit seinem Sperrklinkenhebelarm 11 hintereinander angeordnet sind, daß der lagerbolzenseitige Hebelarm 12, des die Sperrfläche 6 tragenden Hebels 6 mit einer Gabel, die die Lagerbolzenaufnahme 13 bildet und das Schaltspiel definiert, umfaßt. Man erkennt in den Fig. 1 und 2, daß in der Sperrstellung die in der Ebene der Sperrklinkenanordnung 5, 6 verlaufende Verbindungslinie 17 zwischen der Achse des Lagerbolzens 4, der Achse des Sperrklinkengelenkes 10 und der Kontaktlinie des Linienkontaktes 16 in einer Geraden verläuft. Die Sperrfläche 8 und die Gegensperrfläche 9 liegen in dieser Sperrstellung noch paßflächig gegeneinander. Die Verhältnisse zu Beginn der Abknickbewegung zeigt die Fig. 3.1 to 3 is the embodiment in which the pawl arrangement 5, 6 experiences a tensile load in the locked position. In Fig. 2 you can clearly see that the bearing pin lever 5 and the locking surface 8 carrying lever 6 with his Pawl lever arm 11 are arranged one behind the other that the bearing arm-side lever arm 12, of the lever 6 carrying the locking surface 6 with a fork, which forms the bearing pin receptacle 13 and defines the switching play. 1 and 2 that in the locking position the line 17 running in the plane of the pawl arrangement 5, 6 runs between the axis of the bearing pin 4, the axis of the pawl joint 10 and the contact line of the line contact 16 in a straight line. The locking surface 8 and the counter locking surface 9 are still in this locking position with a mating surface. 3 shows the conditions at the beginning of the bending movement.

Die Fig. 4 zeigt eine andere Ausführungsform, bei der die Sperrklinkenanordnung 5, 6 in der Sperrstellung eine Druckbelastung erfährt. Hier sind der lagenbolzenseitige Hebel 5 und der die Sperrfläche 8 tragende Hebel 6 übereinander angeordnet. Der Lagerbolzen 4 durchfaßt eine Ausnehmung in dem die Sperrfläche 8 tragenden Hebel 6, die die Lagerbolzenaufnahme 13 darstellt und das Schaltspiel definiert. Auch hier ist die Anordnung so getroffen, daß in dieser Sperrstellung die parallel zur Ebene der Sperrklinkenanordnung 5, 6 verlaufende Verbindungslinie 17 zwischen der Achse des Lagerbolzens 4, der Achse des Sperrklinkengelenkes 10 und der Kontaktlinie des Linienkontaktes 16 in einer Geraden verläuft.4 shows another embodiment in which the pawl arrangement 5, 6 is subjected to a pressure load in the locked position. Here, the peg-side lever 5 and the lever 6 carrying the locking surface 8 are arranged one above the other. The bearing pin 4 includes a recess in the lever 6 carrying the locking surface 8, which represents the bearing pin receptacle 13 and defines the switching game. Again, the arrangement is such that in this locking position the connecting line 17 running parallel to the level of the pawl arrangement 5, 6 runs between the axis of the bearing pin 4, the axis of the pawl joint 10 and the contact line of the line contact 16 in a straight line.

In den Fig. 2 und 3 erkennt man zunächst die Kraft 18, die über die Abstützung der geschlossenen Kraftfahrzeugtür an dem Schloßhalter 7 auf die Drehfalle 3 ausgeübt wird. Man erkennt außerdem die Kraft 19, die von der Gegensperrfläche 9 an der Drehfalle 3 auf die Sperrfläche 8 an der Sperrklinkenanordnung 5, 6 in Sperrposition der Sperrklinkenanordnung 5, 6 ausgeübt wird. Die Lage des Sperrklinkengelenkes 10 ist so gewählt, daß die Achse des Sperrklinkengelenkes 10 auf der Wirklinie dieser letztgenannten Kraft liegt. Aus der Fig. 2 entnimmt man, daß diese Kraft dafür sorgt, daß sich die dargestellte Sperrklinkenanordnung 5, 6 selbsttätig immer in die gestreckte Lage ausrichtet. Das gilt entsprechend für die Ausführungsform nach Fig. 4.2 and 3, one can first see the force 18 which is exerted on the catch 3 via the support of the closed motor vehicle door on the lock holder 7. One can also see the force 19, which from the counter-blocking surface 9 on the catch 3 to the blocking surface 8 on the pawl arrangement 5, 6 in the blocking position Pawl assembly 5, 6 is exercised. The position of the pawl joint 10 is selected so that the axis of the pawl joint 10 lies on the line of action of this latter force. From Fig. 2 it can be seen that this force ensures that the pawl arrangement 5, 6 shown is always automatically aligned in the extended position. This applies correspondingly to the embodiment according to FIG. 4.

In der Fig. 1 erkennt man die Rückstellfederanordnung 20, die der Ausknickung der Sperrklinkenanordnung 5, 6 entgegenwirkt.1 shows the return spring arrangement 20 which counteracts the buckling of the pawl arrangement 5, 6.

Claims (4)

Kraftfahrzeugtürverschluß mit um einen Drehfallenbolzen drehbarer Drehfalle und um einen Lagerbolzen schwenkbarer Sperrklinkenanordnung,

bei dem im geschlossenen Zustand der Kraftfahrzeugtür ein am Türpfosten befestigter Schloßhalter in eine Schloßhalterausnehmung der Drehfalle einfaßt und

bei dem die Sperrklinkenanordnung im geschlossenen Zustand der Kraftfahrzeugtür mit einer Sperrfläche eine Gegensperrfläche an der Drehfalle in Sperrposition der Sperrklinkenanordnung mit paßflächigem Kontakt hinterfaßt, dadurch gekennzeichnet,
daß die Sperrklinkenanordnung (5, 6) als Hebelgetriebe mit einem lagerbolzenseitigen Hebel (5), der um den Lagerbolzen (4) schwenkbar ist, und einem die Sperrfläche (8) tragenden Hebel (6) ausgeführt ist, welche beiden Hebel (5, 6) über ein Sperrklinkengelenk (10) mit zum Lagerbolzen (4) paralleler Gelenkachse, gegeneinander abknickbar, vereinigt sind,

daß der die Sperrfläche (6) tragende Hebel (6) einen Sperrflächenhebelarm (11) und einen lagerbolzenseitigen Hebelarm (12) sowie an dem lagerbolzenseitigen Hebelarm (12) eine Lagerbolzenaufnahme (13) mit Schaltspiel zwischen einem Sperrstellunganschlag (14) und einem Abknickanschlag (15) aufweist,

daß bei einer Öffnungsbewegung der Sperrklinkenanordnung (5, 6) bei geschlossener Kraftfahrzeugtür der die Sperrfläche (8) tragende Hebel (6) gegenüber dem bolzenseitigen Hebel (5) abgeknickt und der Sperrstellungsanschlag (14) von dem Lagerbolzen (4) freikommt sowie der Abknickanschlag (15) an dem Lagerbolzen (4) zur Anlage kommt und dadurch der paßflächige Kontakt in einen Linienkontakt (16) überführbar ist.Motor vehicle door lock with a rotary latch rotatable about a pivot bolt and a pawl arrangement pivotable about a bearing bolt,

in which, in the closed state of the motor vehicle door, a lock holder fastened to the door jamb surrounds in a lock holder recess in the catch and

in which the pawl arrangement in the closed state of the motor vehicle door with a blocking surface surrounds a counter-blocking surface on the catch in the blocking position of the pawl arrangement with a mating contact, characterized in that
that the pawl arrangement (5, 6) is designed as a lever mechanism with a bearing pin-side lever (5) which can be pivoted about the bearing pin (4) and a lever (6) carrying the blocking surface (8), which two levers (5, 6 ) are connected via a pawl joint (10) with an articulated axis parallel to the bearing pin (4), which can be bent against one another,

that the locking surface (6) carrying lever (6) a locking surface lever arm (11) and a bearing pin-side lever arm (12) and on the bearing pin-side lever arm (12) a bearing pin receptacle (13) with switching play between a locking position stop (14) and a kinking stop (15 ) having,

that when the pawl arrangement (5, 6) opens with the motor vehicle door closed, the lever (6) carrying the locking surface (8) bends relative to the bolt-side lever (5) and the The blocking position stop (14) is released from the bearing pin (4) and the bend stop (15) comes into contact with the bearing pin (4) and the mating surface contact can thereby be converted into a line contact (16). Kraftfahrzeugtürverschluß nach Anspruch 1 in der Ausführungsform, bei der die Sperrklinkenanordnung in Sperrstellung eine Zugbelastung erfährt, dadurch gekennzeichnet, daß der lagerbolzenseitige Hebel (5) und der die Sperrfläche (8) tragende Hebel (6) mit seinem Sperrflächenhebelarm (11) hintereinander angeordnet sind, daß der lagerbolzenseitige Hebelarm (12) des die Sperrfläche (8) tragenden Hebels (6) mit einer Gabel als Lagerbolzenaufnahme (13), die das Schaltspiel definiert, umfaßt, und daß in der Sperrstellung bei paßflächigem Kontakt von Sperrfläche (8) und Gegensperrfläche (9) die in der Ebene der Sperrklinkenanordnung (5, 6) verlaufende Verbindungslinie (17) zwischen der Achse des Lagerbolzens (4), der Achse des Sperrklinkengelenkes (10) und der Kontaktlinie des mit dem Beginn der Abknickung sich einstellenden Linienkontaktes (16) in einer Geraden verläuft.Motor vehicle door lock according to claim 1 in the embodiment in which the pawl arrangement is subjected to a tensile load in the locking position, characterized in that the lever (5) on the bearing pin side and the lever (6) carrying the locking surface (8) are arranged one behind the other with its locking surface lever arm (11), that the bearing pin-side lever arm (12) of the locking surface (8) carrying lever (6) with a fork as a bearing pin receptacle (13), which defines the switching cycle, and that in the locking position with a mating contact of the locking surface (8) and counter locking surface ( 9) the connecting line (17) extending in the plane of the pawl arrangement (5, 6) between the axis of the bearing pin (4), the axis of the pawl joint (10) and the contact line of the line contact (16) which occurs at the beginning of the kink a straight line runs. Kraftfahrzeugtürverschluß nach Anspruch 1 in der Ausführungsform, bei der die Sperrklinkenanordnung in der Sperrstellung eine Druckbelastung erfährt, dadurch gekennzeichnet, daß der lagerbolzenseitige Hebel (5) und der die Sperrfläche (8) tragende Hebel (6) übereinander angeordnet sind, daß der Lagerbolzen (4) eine Ausnehmung in dem die Sperrfläche (8) tragenden Hebel (6), die die Lagerbolzenaufnahme (13) bildet und das Schaltspiel definiert, durchfaßt, und daß in der Sperrstellung bei paßflächigem Kontakt von Sperrfläche (8) und Gegensperrfläche (9) die in einer Ebene parallel zur Sperrklinkenanordnung (5, 6) verlaufende Verbindungslinie (17) zwischen der Achse des Lagerbolzens (4), der Achse des Sperrklinkengelenkes (10) und der Kontaktlinie des mit dem Beginn der Abknickung sich einstellenden Linienkontaktes (16) in einer Geraden verläuft.Motor vehicle door lock according to claim 1 in the embodiment in which the pawl arrangement is subjected to a pressure load in the locking position, characterized in that the lever (5) on the bearing pin side and the lever (6) carrying the blocking surface (8) are arranged one above the other, that the bearing pin (4 ) a recess in the locking surface (8) carrying lever (6), which forms the bearing pin receptacle (13) and defines the switching game, and that in the locking position with a mating surface contact of locking surface (8) and counter locking surface (9) in a plane parallel to the pawl arrangement (5, 6) extending connecting line (17) between the axis of the bearing pin (4), the axis of the pawl joint (10) and the contact line of the line contact (16) which occurs at the beginning of the bend runs in a straight line. Kraftfahrzeugtürverschluß nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Sperrklinkenanordnung (5, 6) eine Rückstellfederanordnung (20) aufweist, die der Ausknickung entgegenwirkt.Motor vehicle door lock according to one of claims 1 to 3, characterized in that the pawl arrangement (5, 6) has a return spring arrangement (20) which counteracts the buckling.
EP91117436A 1991-01-24 1991-10-12 Door lock for motor vehicle Expired - Lifetime EP0496039B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4102049A DE4102049A1 (en) 1991-01-24 1991-01-24 MOTOR VEHICLE DOOR LOCK
DE4102049 1991-01-24

Publications (2)

Publication Number Publication Date
EP0496039A1 true EP0496039A1 (en) 1992-07-29
EP0496039B1 EP0496039B1 (en) 1994-12-07

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EP91117436A Expired - Lifetime EP0496039B1 (en) 1991-01-24 1991-10-12 Door lock for motor vehicle

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US (1) US5188406A (en)
EP (1) EP0496039B1 (en)
JP (1) JPH04306382A (en)
DE (1) DE4102049A1 (en)
ES (1) ES2064854T3 (en)

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EP1025878A1 (en) * 1999-02-05 2000-08-09 Incom Explosionsschutz AG Process and device for a mechanical release system for prestressed valves
WO2010066240A1 (en) * 2008-12-10 2010-06-17 Kiekert Aktiengesellschaft Multi-latch lock with catch hook
ITTO20130781A1 (en) * 2013-09-30 2015-03-31 Magna Closures Spa LOCK FOR A DOOR OF A MOTOR VEHICLE
EP2860335A3 (en) * 2013-10-08 2015-09-30 Pyeonghwa Automotive Co., Ltd. Latch apparatus
CN105073211A (en) * 2012-12-21 2015-11-18 开开特股份公司 Motor vehicle door lock
WO2020187358A1 (en) * 2019-03-21 2020-09-24 Kiekert Ag Door lock, in particular motor vehicle door lock
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WO1997019243A1 (en) * 1995-11-20 1997-05-29 John Phillip Chevalier Latch arrangement suitable for an automobile door
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WO2010066240A1 (en) * 2008-12-10 2010-06-17 Kiekert Aktiengesellschaft Multi-latch lock with catch hook
CN105073211A (en) * 2012-12-21 2015-11-18 开开特股份公司 Motor vehicle door lock
ITTO20130781A1 (en) * 2013-09-30 2015-03-31 Magna Closures Spa LOCK FOR A DOOR OF A MOTOR VEHICLE
WO2015044463A1 (en) * 2013-09-30 2015-04-02 Magna Closures S.P.A. Latch for a door of a motor vehicle
US10648204B2 (en) 2013-09-30 2020-05-12 Magna Closures S.P.A. Latch for a door of a motor vehicle
EP2860335A3 (en) * 2013-10-08 2015-09-30 Pyeonghwa Automotive Co., Ltd. Latch apparatus
WO2020187358A1 (en) * 2019-03-21 2020-09-24 Kiekert Ag Door lock, in particular motor vehicle door lock
US12006743B2 (en) 2019-03-21 2024-06-11 Kiekert Ag Door lock, in particular motor vehicle door lock

Also Published As

Publication number Publication date
US5188406A (en) 1993-02-23
JPH04306382A (en) 1992-10-29
DE4102049C2 (en) 1992-11-05
ES2064854T3 (en) 1995-02-01
DE4102049A1 (en) 1992-07-30
EP0496039B1 (en) 1994-12-07

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