EP2932004B1 - Method for producing motor vehicle locks with a twisted locking part edge - Google Patents

Method for producing motor vehicle locks with a twisted locking part edge Download PDF

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Publication number
EP2932004B1
EP2932004B1 EP13840182.3A EP13840182A EP2932004B1 EP 2932004 B1 EP2932004 B1 EP 2932004B1 EP 13840182 A EP13840182 A EP 13840182A EP 2932004 B1 EP2932004 B1 EP 2932004B1
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EP
European Patent Office
Prior art keywords
pawl
locking mechanism
grooves
twisted
motor vehicle
Prior art date
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Application number
EP13840182.3A
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German (de)
French (fr)
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EP2932004A2 (en
Inventor
Thorsten Bendel
Werner Pohle
Thomas Waldmann
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Kiekert AG
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Kiekert AG
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Publication of EP2932004A2 publication Critical patent/EP2932004A2/en
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    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B79/00—Mounting or connecting vehicle locks or parts thereof
    • E05B79/10—Connections between movable lock parts
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/38—Making other particular articles locksmith's goods, e.g. handles

Definitions

  • the invention relates to a method for producing the locking parts catch and pawl of a motor vehicle lock, punched out in the rotary latch and pawl perpendicular or approximately vertical edges with corresponding locking surfaces on pawl and rotary latch and are then provided with clearance of the locking surfaces with a sheath.
  • the invention also relates to a motor vehicle lock with a catch and the catch in the closed motor vehicle lock arresting pawl, wherein both locking parts have corresponding locking surfaces on the vertical edges resulting from punching and a sheathing leaving the locking surfaces.
  • the present invention is therefore based on the object to propose a motor vehicle lock in which the noise generated during the opening and closing of the motor vehicle lock during the movement of the rotary latch and pawl on the latching surfaces are largely avoided.
  • the object is achieved according to the invention in that after punching the locking parts of a predetermined angle in the area is twisted, which would otherwise be in engagement with the punching contour of the other locking member by the parallel grooves running.
  • the pawl is rotated with its straight grooves having punching contour at a predetermined angle in itself, so that in relation to the straight running grooves of the other locking part, the grooves of the pawl punch contour run obliquely.
  • the pawl is a component that is easy to twist in itself due to the shape, so then in relation to the other locking part, a punching contour is formed having obliquely set grooves.
  • the invention provides that the locking member is rotated at an angle in itself, which provides at least two overlaps of straight and inclined grooves. In two such overlaps, so in the end effect points of contact of the two mutually rubbing locking parts, the feared meshing of the punching marks is effectively prevented and it is ensured that both locking parts can be pivoted apart evenly rubbing apart.
  • the angle of the torsion taking into account the thickness of the locking part and the distance of the grooves is set to 5 - 15 °.
  • a corresponding twist is to be realized with relatively little effort, even if it should be considered that it is the pawl z.
  • B. is a kind of sheet metal. Such only slightly twisted component or locking part can then be used in the usual motor vehicle lock, without the need for further modifications or changes.
  • a further advantageous embodiment of the invention provides that both locking parts, ie rotary latch and pawl are twisted so far that the grooves of the opposing latching areas of the locking parts have corresponding overlaps or points of contact, so that it can not then come to the harmful interlocking of the punch marks.
  • both locking members are twisted accordingly, the degree of twisting is less for both than, for example, if the pawl alone is subjected to torsion. Nevertheless, the twisting of the pawl is much easier than that of the catch, even if the catch must be twisted only in a small range, ie not the entire catch must be processed accordingly.
  • a locking part has a latching surface with a punched contour whose straight striations are inclined by twisting the locking part relative to the straight running grooves of the other locking part or act as inclined grooves.
  • the pawl is essentially a rectangular sheet metal which, as such, can be twisted as a whole or in a partial area so as to produce the obliquely set grooves. For this reason, it is proposed to provide the pawl with the inclined grooves, while the catch remains unprocessed as such, ie retains its straight grooves. With the locking surface of the pawl together and the front part of the pawl is twisted, But what does not matter because of the thickness of the pawl for the guidance or support of the pawl on the catch.
  • both locking parts d. H. both the pawl and the rotary latch to turn in opposite directions at a correspondingly lower angle. This also ensures that the stamped grooves of both locking parts do not interfere, but rather ensure proper sliding of the pawl on the catch.
  • the possibility is also provided that the catch in the opposite region of the pawl corresponding overlaps on the latching surfaces is predestined twisted. Even if the rotary latch as such can not be twisted or only with the appropriate effort, the possibility exists to limit this torsion to a corresponding partial area of the rotary latch.
  • the invention is characterized in particular by the fact that with a very low additional production costs
  • Motor vehicle lock is provided, are formed in the pawl and rotary latch in the latching area, ie in the area where they are both on top of each other, so that the previous noise pollution is significantly minimized.
  • This is achieved by reducing the sliding friction, ie by the created overlaps of the straight grooves and the inclined grooves. Due to the overlaps, it can advantageously also no longer come to a meshing of the originally straight running grooves.
  • the twisting of the locking parts is particularly the pawl, because it is an approximately rectangular component or sheet metal part. In addition, the twisting is only necessary over a small amount in order to achieve the obliquely set grooves. Overall, the operation of such a motor vehicle lock is made easier and safer and the noise pollution is significantly minimized.
  • FIG. 1 shows a plan view of a motor vehicle lock 1, in which the rotary latch 2 moving about the axis 3, the bracket leg 9 of the lock bracket. 7 includes.
  • the closed state of a corresponding motor vehicle lock 1 is shown;
  • the catch 2 is secured by the pawl axis 6 pivotable pawl 5, ie the motor vehicle lock 1 can only be opened again when the pawl 5 is previously pivoted away, which is not possible here on the not reproduced handle the vehicle door.
  • the stirrup leg 9 is moved over the receptacle 4 to the deep bottom 27 to the catch 2 and thus secures the closed state of the vehicle door, not shown here, the locking parts 30, 31, ie the pawl 5 and the catch 2 are parts of the vehicle door, while the lock bracket 7 are fixed to the hanger arm 9 on the body of the motor vehicle.
  • the locking parts 30, 31 of the locking mechanism 8 are produced in a preferably multi-part stamping process from corresponding sheets, wherein the surface is characterized by a punched contour 14 at the latching surfaces 12, 13 kept free of the casing 10 initially at both locking parts 30, 31.
  • this surface formation is changed in the area of the latching surface 13 by the fact that by twisting the component, in particular therefore the pawl 5, the ridges 18, 19 forming the punching contour 11 are inclined and in FIG. 3 are marked accordingly as inclined grooves 18 ', 19'.
  • This stamped contour 11 leads to a much more favorable sliding friction between the locking parts 30, 31, so the pawl 5 on the catch 2, so it can not come here to the unfavorable noise nuisance.
  • edges 15, 16 of the rotary latch 2 and pawl 5 are provided with a plastic sheath 10.
  • the edges 15, 16 are thus covered by such a sheath, only in the region of the locking surfaces 12, 13 and also the contact surface 20, this sheath does not exist, so that there the special surface structure, as can be seen from the following figures, take effect can.
  • the Surface texture minimizes noise and minimizes sliding friction, with both working together.
  • FIG. 2 shows the region of the locking surface 12 on the rotary latch 2, which must correspond to the locking pawl 5 on opening and closing of the motor vehicle lock 1 with the locking surface 13.
  • FIGS. 2 and 3 shows, avoided here, by the locking contour of the locking surface 13 is inclined, by the entire component, ie the pawl 5 is twisted by a certain angle.
  • FIG. 3 illustrates that the final state is not reached here, ie the pawl 5 must be further twisted to ensure that at least two covers 25 must be present.
  • the inclination by the twisting of the pawl 5 about its longitudinal axis 38 at about 5 - 15 ° to ensure the desired two overlaps each.
  • FIG. 4 shows a perspective view of the rotary latch 2, which is pivotable about the axis 3, not shown here.
  • the in FIG. 4 is not reproduced, is inserted into the receptacle 4 or exempt from this, so that the vehicle door can then be opened or just closes, and then locked in the closed position by the pawl 5.
  • the stamping of the rotary catch 2 produces a clearly recognizable edge 15, the surface of which, as explained further above, is identified by the punched contour 14 on the latching surface 12. This punching contour 14 is in FIG. 4 only hinted.
  • the locking surface 12 indicates the main catch 22, ie the position in which the pawl 5 prevents the catch 2 in the closed position at a pivoting back. Then, as already mentioned, the locking surface 13 of the pawl 5 on the locking surface 12 of the catch 2 and both can move with reduced friction to each other, without causing the adverse noise, because the straight grooves 17 of the catch 2 and the inclined grooves 18 ', 19' of the pawl 5 can not interlock or lock into each other.

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  • Lock And Its Accessories (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Herstellen der Gesperreteile Drehfalle und Sperrklinke eines Kraftfahrzeugschlosses, bei dem Drehfalle und Sperrklinke senkrechte oder annähernd senkrechte Kanten mit korrespondierenden Rastflächen an Sperrklinke und Drehfalle ergebend ausgestanzt und anschließend unter Freihaltung der Rastflächen mit einer Ummantelung versehen werden. Die Erfindung betrifft außerdem ein Kraftfahrzeugschloss mit Drehfalle und die Drehfalle beim geschlossenen Kraftfahrzeugschloss arretierenden Sperrklinke, wobei beide Gesperreteile korrespondierende Rastflächen auf den beim Stanzen entstehenden senkrechten Kanten und eine die Rastflächen freilassende Ummantelung aufweisen.The invention relates to a method for producing the locking parts catch and pawl of a motor vehicle lock, punched out in the rotary latch and pawl perpendicular or approximately vertical edges with corresponding locking surfaces on pawl and rotary latch and are then provided with clearance of the locking surfaces with a sheath. The invention also relates to a motor vehicle lock with a catch and the catch in the closed motor vehicle lock arresting pawl, wherein both locking parts have corresponding locking surfaces on the vertical edges resulting from punching and a sheathing leaving the locking surfaces.

Grundsätzlich ist es bekannt, die beim Fahren des Kraftfahrzeuges auftretenden so genannten Knarzgeräusche, die zwischen Bügelschenkel und Drehfalle auftreten können, dadurch zu verringern, dass man entweder den Bügelschenkel oder auch die Drehfalle im Kontaktbereich beider mit einer Oberflächenstruktur versieht, die zu einer Verringerung der Gleitreibung beiträgt. Dabei werden nach der DE 10 2010 009 141 A1 auf dem Bügelschenkel im Kontaktbereich schräg zur Längsachse des Bügelschenkels verlaufende Rillen oder entsprechende Stege aufgebracht. Diese sollen wie erwähnt das bekannte Knarzen verringern. Nicht beachtet ist bei diesen Lösungen, dass beim eigentlichen Herstellen der Bügelschenkel und insbesondere der Gesperreteile Drehfalle und Sperrklinke auf den korrespondierenden Rastflächen eine das Knarzen begünstigende Oberfläche vorhanden ist. Beim Stanzen entstehen auf den Kantenoberflächen Riefen und Rillen, die insbesondere beim Wegschwenken der Sperrklinke ineinander greifen können.In principle, it is known that the so-called creaking noises, which can occur between the hanger arms and the rotary latch, occur when the motor vehicle is being driven, by either providing the hanger arm or the rotary latch in the contact region of both with a surface structure which reduces the sliding friction contributes. It will be after the DE 10 2010 009 141 A1 on the hanger arm in the contact area obliquely to the longitudinal axis of the stirrup leg extending grooves or corresponding webs applied. These should, as mentioned, reduce the known creaking. Not considered in these solutions that the actual production of the bar arms and in particular the locking parts catch and pawl on the corresponding locking surfaces a caging-promoting surface is present. When punching occur The edge surfaces grooves and grooves that can interlock especially when swinging the pawl.

Aus der DE 10 2007 060 626 A1 ist ein weiteres Verfahren bzw. Kraftfahrzeugschloss gemäß dem Oberbegriff des Anspruchs 1 bzw. 6 bekannt.From the DE 10 2007 060 626 A1 is another method or motor vehicle lock according to the preamble of claim 1 or 6 known.

Der vorliegenden Erfindung liegt daher die Aufgabe zu Grunde, ein Kraftfahrzeugschloss vorzuschlagen, bei dem die beim Öffnen und Schließen des Kraftfahrzeugschlosses bei der Bewegung von Drehfalle und Sperrklinke an deren Rastflächen entstehenden Geräusche weitgehend vermieden werden.The present invention is therefore based on the object to propose a motor vehicle lock in which the noise generated during the opening and closing of the motor vehicle lock during the movement of the rotary latch and pawl on the latching surfaces are largely avoided.

Die Aufgabe wird gemäß der Erfindung dadurch gelöst, dass nach dem Stanzen der Gesperreteile eines um einen vorgegebenen Winkel in dem Bereich tordiert wird, der ansonsten mit der Stanzkontur des anderen Gesperreteils durch die parallel zueinander verlaufenden Riefen in Eingriff stehen würde.The object is achieved according to the invention in that after punching the locking parts of a predetermined angle in the area is twisted, which would otherwise be in engagement with the punching contour of the other locking member by the parallel grooves running.

Bei einem nicht entsprechend durchgeführten Herstellungsverfahren würden die beim Stanzen entstandenen, Riefen aufweisenden Stanzkonturen mit der Stanzkontur des benachbarten bzw. gegenüberstehenden Gesperreteils so in Kontakt kommen, dass sie ineinandergreifen und das Verschieben der Sperrklinke auf der Drehfalle erschweren oder ruckartig beeinflussen, sodass die beschriebenen unangenehmen Geräusche entstehen. Dies wird mit der Erfindung dadurch unterbunden, dass nun diese Riefen aufweisenden Stanzkonturen nicht ineinandergreifen können, weil die Stanzkontur auf dem tordierten Gesperreteil mit dem nicht tordierten Gesperreteil nur an einigen Punkten eine Überdeckung aufweisen und sich also dort berühren. Die notwendigerweise zu überwindende Gleitreibung wird erheblich minimiert, vor allem aber wird das Ineinandergreifen der Stanzriefen sicher unterbunden. Mit Hilfe der Erfindung wird also nicht nur die Gleitreibung minimiert, sondern gleichzeitig auch ein Verhaken beider Gesperreteile unterbunden, sodass der Betrieb eines derartigen Kraftfahrzeugschlosses deutlich sicherer wird.In a non-correspondingly carried out manufacturing process, the punching contours resulting during punching, the punching contour of the adjacent or opposing locking member would come into contact so that they interlock and complicate the shifting of the pawl on the catch or jerky influence, so that the described unpleasant noise arise. This is prevented by the invention in that now these grooves having punching contours can not interlock, because the punching contour on the twisted locking part with the non-twisted locking part have only at some points an overlap and therefore touch there. The necessarily to be overcome sliding friction is considerably minimized, but above all, the intermeshing of the punch marks is reliably prevented. With the help of the invention, therefore, not only the sliding friction is minimized, but at the same time also prevented a hooking both locking parts, so that the operation of such a motor vehicle lock is much safer.

Nach einer zweckmäßigen Ausführung der Erfindung ist vorgesehen, dass die Sperrklinke mit ihrer gerade verlaufende Riefen aufweisenden Stanzkontur unter einem vorgegebenen Winkel in sich selbst verdreht wird, sodass im Verhältnis zu den gerade verlaufenden Riefen des anderen Gesperreteils die Riefen der Sperrklinken-Stanzkontur schräg verlaufen. Die Sperrklinke stellt ein Bauteil dar, das aufgrund der Formgebung einfach in sich zu verdrehen ist, sodass dann gegenüber dem anderen Gesperreteil eine Stanzkontur entsteht, die schräg gestellte Riefen aufweist.According to an advantageous embodiment of the invention it is provided that the pawl is rotated with its straight grooves having punching contour at a predetermined angle in itself, so that in relation to the straight running grooves of the other locking part, the grooves of the pawl punch contour run obliquely. The pawl is a component that is easy to twist in itself due to the shape, so then in relation to the other locking part, a punching contour is formed having obliquely set grooves.

Um den Betrieb des Kraftfahrzeugschlosses zu optimieren, sieht die Erfindung vor, dass das Gesperreteil unter einem Winkel in sich selbst verdreht wird, der mindestens zwei Überdeckungen von gerade verlaufenden und schräg gestellten Riefen erbringt. Bei zwei solchen Überdeckungen, also im Endeffekt Berührungspunkten der beiden aneinander reibenden Gesperreteile ist das befürchtete Ineinandergreifen der Stanzriefen wirksam unterbunden und es ist sichergestellt, dass beide Gesperreteile gleichmäßig aufeinander reibend auseinander geschwenkt werden können.To optimize the operation of the motor vehicle lock, the invention provides that the locking member is rotated at an angle in itself, which provides at least two overlaps of straight and inclined grooves. In two such overlaps, so in the end effect points of contact of the two mutually rubbing locking parts, the feared meshing of the punching marks is effectively prevented and it is ensured that both locking parts can be pivoted apart evenly rubbing apart.

Zur Erreichung der mindestens zwei Überdeckungen ist es vorteilhaft, wenn der Winkel der Torsion unter Berücksichtigung der Dicke des Gesperreteils und dem Abstand der Riefen auf 5 - 15° eingestellt wird. Eine entsprechende Torsion ist mit verhältnismäßig geringem Aufwand zu verwirklichen, auch wenn zu berücksichtigen ist, dass es sich bei der Sperrklinke z. B. um eine Art Blech handelt. Ein solches nur geringfügig tordiertes Bauteil bzw. Gesperreteil kann dann im üblichen Kraftfahrzeugschloss eingesetzt werden, ohne dass es weiterer Umbauten oder Änderungen bedarf.In order to achieve the at least two overlaps, it is advantageous if the angle of the torsion, taking into account the thickness of the locking part and the distance of the grooves is set to 5 - 15 °. A corresponding twist is to be realized with relatively little effort, even if it should be considered that it is the pawl z. B. is a kind of sheet metal. Such only slightly twisted component or locking part can then be used in the usual motor vehicle lock, without the need for further modifications or changes.

Eine weitere zweckmäßige Ausführungsform der Erfindung sieht vor, dass beide Gesperreteile, d. h. Drehfalle und Sperrklinke so weit tordiert werden, dass die Riefen der einander gegenüberliegenden Rastbereiche der Gesperreteile entsprechende Überdeckungen bzw. Berührungspunkte aufweisen, sodass es dann nicht zu dem schädlichen Ineinandergreifen der Stanzriefen kommen kann. Wenn beide Gesperreteile entsprechend tordiert werden, ist das Maß der Tordierung natürlich bei beiden geringer, als wenn beispielsweise die Sperrklinke alleine einer Torsion unterworfen wird. Dennoch ist das Tordieren der Sperrklinke deutlich einfacher, als das der Drehfalle, auch wenn die Drehfalle nur in einem geringen Bereich tordiert werden muss, d. h. nicht die gesamte Drehfalle muss entsprechend bearbeitet werden.A further advantageous embodiment of the invention provides that both locking parts, ie rotary latch and pawl are twisted so far that the grooves of the opposing latching areas of the locking parts have corresponding overlaps or points of contact, so that it can not then come to the harmful interlocking of the punch marks. Of course, if both locking members are twisted accordingly, the degree of twisting is less for both than, for example, if the pawl alone is subjected to torsion. Nevertheless, the twisting of the pawl is much easier than that of the catch, even if the catch must be twisted only in a small range, ie not the entire catch must be processed accordingly.

Zur Durchführung des Verfahrens ist es von Vorteil, wenn ein Gesperreteil eine Rastfläche mit einer Stanzkontur aufweist, deren an sich geraden Riefen durch Tordieren des Gesperreteils gegenüber den gerade verlaufenden Riefen des anderen Gesperreteils schräg gestellt sind bzw. als schräg gestellte Riefen wirken. Mit Hilfe eines derart ausgebildeten Gesperreteils ist es möglich, das erwähnte schädliche Ineinandergreifen der Stanzriefen auszuschließen, wenn die Sperrklinke an der Drehfalle entlang geschwenkt wird, um so das Kraftfahrzeugschloss zu öffnen bzw. den Öffnungsvorgang einzuleiten. Das eine Gesperreteil bleibt unbearbeitet, während das zweite Gesperreteil, vorzugsweise eben die Sperrklinke, in eine Form gebracht wird, dass auf ihrer Rastfläche schräg gestellte Riefe vorhanden sind, die dann mit den gerade verlaufenden Riefen des anderen Gesperreteils vorteilhaft zusammenwirken können.To carry out the method, it is advantageous if a locking part has a latching surface with a punched contour whose straight striations are inclined by twisting the locking part relative to the straight running grooves of the other locking part or act as inclined grooves. With the aid of a locking part formed in this way, it is possible to exclude the mentioned harmful interlocking of the punch marks when the pawl is pivoted along the catch, so as to open the motor vehicle lock or to initiate the opening process. The one locking part remains unprocessed, while the second locking part, preferably just the pawl, is brought into a form that obliquely placed on their locking surface depths are present, which can then interact advantageously with the straight running grooves of the other locking part.

Besonders vorteilhaft ist es, wenn die schräg gestellten Riefen auf dem in sich verdrehten Teil der Sperrklinke ausgebildet sind. Die Sperrklinke ist im Wesentlichen ein rechteckförmiges Blech, das als solches insgesamt oder auch in einem Teilbereich tordiert werden kann, um so die schräg gestellten Riefen zu erzeugen. Aus diesem Grunde wird vorgeschlagen, die Sperrklinke mit den schräg gestellten Riefen zu versehen, während die Drehfalle als solche unbearbeitet bleibt, d. h. ihre gerade verlaufenden Riefen behält. Mit der Rastfläche der Sperrklinke zusammen wird auch der vordere Teil der Sperrklinke mit verdreht, was aber wegen der Dicke der Sperrklinke für die Führung bzw. Abstützung der Sperrklinke an der Drehfalle keine Rolle spielt.It when the inclined grooves are formed on the twisted part of the pawl is particularly advantageous. The pawl is essentially a rectangular sheet metal which, as such, can be twisted as a whole or in a partial area so as to produce the obliquely set grooves. For this reason, it is proposed to provide the pawl with the inclined grooves, while the catch remains unprocessed as such, ie retains its straight grooves. With the locking surface of the pawl together and the front part of the pawl is twisted, But what does not matter because of the thickness of the pawl for the guidance or support of the pawl on the catch.

Weiter vorne ist darauf hingewiesen worden, dass die Sperrklinke nur um einen geringfügigen Betrag bzw. Winkel tordiert werden muss, um die gewünschten bzw. sehr vorteilhaften schräg gestellten Riefen zu erhalten. Es ist darüber hinaus auch möglich, beide Gesperreteile, d. h. sowohl die Sperrklinke wie auch die Drehfalle, in sich gegenläufig um einen entsprechend geringeren Winkel zu verdrehen. Auch damit wird erreicht, dass die Stanzriefen beider Gesperreteile sich nicht behindern, sondern vielmehr ein einwandfreies Gleiten der Sperrklinke auf der Drehfalle sicherstellen.Earlier it has been pointed out that the pawl only has to be twisted by a slight amount or angle in order to obtain the desired or very advantageous inclined grooves. It is also possible, both locking parts, d. H. both the pawl and the rotary latch to turn in opposite directions at a correspondingly lower angle. This also ensures that the stamped grooves of both locking parts do not interfere, but rather ensure proper sliding of the pawl on the catch.

Neben der Möglichkeit, beide Gesperreteile zu tordieren, ist auch die Möglichkeit vorgesehen, dass die Drehfalle in dem der Sperrklinke gegenüberliegenden Bereich entsprechende Überdeckungen auf den Rastflächen vorgebend tordiert ist. Auch wenn die Drehfalle als solche nicht oder nur mit entsprechendem Aufwand insgesamt tordiert werden kann, ist die Möglichkeit gegeben, diese Torsion auf einen entsprechenden Teilbereich der Drehfalle zu begrenzen.In addition to the ability to twist both locking parts, the possibility is also provided that the catch in the opposite region of the pawl corresponding overlaps on the latching surfaces is predestined twisted. Even if the rotary latch as such can not be twisted or only with the appropriate effort, the possibility exists to limit this torsion to a corresponding partial area of the rotary latch.

Auch wenn die Möglichkeit gegeben ist, beispielsweise die Sperrklinke nur in einem Teilbereich zu tordieren, ist es besonders zweckmäßig, wenn eines der Gesperreteile, vorzugsweise die Sperrklinke um ihre Längsachse tordiert ist. Dies bedeutet, dass die gesamte Sperrklinke als solche um den vorgesehenen Betrag tordiert ist, auch wenn eigentlich nur der die Rastfläche aufweisende Teilbereich der Sperrklinke wirklich so verdreht werden muss, dass schräg gestellte Riefen entstehen.Even if the possibility exists, for example, to twist the pawl only in a partial area, it is particularly expedient if one of the locking parts, preferably the pawl, is twisted around its longitudinal axis. This means that the entire pawl is twisted as such by the intended amount, even if only the portion of the pawl having the catch surface actually has to be twisted so that obliquely formed grooves arise.

Die Erfindung zeichnet sich insbesondere dadurch aus, dass mit einem ausgesprochen geringen zusätzlichen Herstellungsaufwand ein Kraftfahrzeugschloss geschaffen ist, bei dem Sperrklinke und Drehfalle im Rastbereich, also in dem Bereich, wo sie beide aufeinander liegen, so ausgebildet sind, dass die bisherige Geräuschbelastung deutlich minimiert ist. Dies wird durch Verringerung der Gleitreibung, d. h. durch die geschaffenen Überdeckungen der geraden Riefen und der schräg gestellten Riefen erreicht. Durch die Überdeckungen kann es vorteilhafterweise aber auch nicht mehr zu einem Ineinandergreifen der ursprünglich gerade verlaufenden Riefen kommen. Für das Tordieren der Gesperreteile eignet sich besonders die Sperrklinke, weil sie ein annähernd rechteckiges Bauteil bzw. Blechteil ist. Das Tordieren ist darüber hinaus nur über einen geringen Betrag notwendig, um damit die schräg gestellten Riefen zu erreichen. Insgesamt gesehen ist damit der Betrieb eines derartigen Kraftfahrzeugschlosses erleichtert und sicherer und die Geräuschbelastung ist deutlich minimiert.The invention is characterized in particular by the fact that with a very low additional production costs Motor vehicle lock is provided, are formed in the pawl and rotary latch in the latching area, ie in the area where they are both on top of each other, so that the previous noise pollution is significantly minimized. This is achieved by reducing the sliding friction, ie by the created overlaps of the straight grooves and the inclined grooves. Due to the overlaps, it can advantageously also no longer come to a meshing of the originally straight running grooves. For the twisting of the locking parts is particularly the pawl, because it is an approximately rectangular component or sheet metal part. In addition, the twisting is only necessary over a small amount in order to achieve the obliquely set grooves. Overall, the operation of such a motor vehicle lock is made easier and safer and the noise pollution is significantly minimized.

Weitere Einzelheiten und Vorteile des Erfindungsgegenstandes ergeben sich aus der nachfolgenden Beschreibung der zugehörigen Zeichnung, in der ein bevorzugtes Ausführungsbeispiel mit den dazu notwendigen Einzelheiten und Einzelteilen dargestellt ist. Es zeigen:

Figur 1
eine Draufsicht auf ein Kraftfahrzeugschloss im Schließzustand,
Figur 2
eine vergrößerte Wiedergabe der Kantenansicht einer Drehfalle im Bereich ihrer Rastfläche,
Figur 3
eine vergrößerte Wiedergabe der Rastfläche der Sperrklinke im tordierten Zustand und
Figur 4
eine perspektivische Wiedergabe der Drehfalle mit der besonderen Kantenausbildung.
Further details and advantages of the subject invention will become apparent from the following description of the accompanying drawings, in which a preferred embodiment is shown with the necessary details and individual parts. Show it:
FIG. 1
a plan view of a motor vehicle lock in the closed state,
FIG. 2
an enlarged representation of the edge view of a rotary latch in the region of its latching surface,
FIG. 3
an enlarged view of the locking surface of the pawl in the twisted state and
FIG. 4
a perspective view of the catch with the special edge formation.

Figur 1 zeigt eine Draufsicht auf ein Kraftfahrzeugschloss 1, in dem die sich um die Achse 3 bewegende Drehfalle 2 den Bügelschenkel 9 des Schlossbügels 7 umfasst. Hier ist also der Schließzustand eines entsprechenden Kraftfahrzeugschlosses 1 wiedergegeben; dabei ist die Drehfalle 2 über die um die Klinkenachse 6 verschwenkbare Sperrklinke 5 gesichert, d. h. das Kraftfahrzeugschloss 1 kann nur wieder geöffnet werden, wenn die Sperrklinke 5 zuvor weggeschwenkt ist, was über den hier nicht wiedergegebenen Handgriff der Kraftfahrzeugtür möglich ist. Der Bügelschenkel 9 ist über die Aufnahme 4 bis in den Tiefengrund 27 an die Drehfalle 2 herangefahren und sichert so den Schließzustand auch der hier nicht gezeigten Fahrzeugtür, wobei die Gesperreteile 30, 31, d. h. die Sperrklinke 5 und die Drehfalle 2 Teile der Kraftfahrzeugtür sind, während der Schlossbügel 7 mit dem Bügelschenkel 9 an der Karosserie des Kraftfahrzeuges festgelegt sind. FIG. 1 shows a plan view of a motor vehicle lock 1, in which the rotary latch 2 moving about the axis 3, the bracket leg 9 of the lock bracket. 7 includes. Here, therefore, the closed state of a corresponding motor vehicle lock 1 is shown; In this case, the catch 2 is secured by the pawl axis 6 pivotable pawl 5, ie the motor vehicle lock 1 can only be opened again when the pawl 5 is previously pivoted away, which is not possible here on the not reproduced handle the vehicle door. The stirrup leg 9 is moved over the receptacle 4 to the deep bottom 27 to the catch 2 and thus secures the closed state of the vehicle door, not shown here, the locking parts 30, 31, ie the pawl 5 and the catch 2 are parts of the vehicle door, while the lock bracket 7 are fixed to the hanger arm 9 on the body of the motor vehicle.

Die Gesperreteile 30, 31 des Gesperres 8 werden in einem vorzugsweise mehrteiligen Stanzvorgang aus entsprechenden Blechen hergestellt, wobei an den von der Ummantelung 10 freigehaltenen Rastflächen 12, 13 zunächst bei beiden Gesperreteilen 30, 31 die Oberfläche durch eine Stanzkontur 14 gekennzeichnet ist. Diese Oberflächenausbildung ist aber im Bereich der Rastfläche 13 dadurch geändert, dass durch Tordieren des Bauteils, vor allem also der Sperrklinke 5 die die Stanzkontur 11 bildenden Riefen 18, 19 schräg gestellt sind und in Figur 3 entsprechend als schräg gestellte Riefen 18', 19' gekennzeichnet sind. Diese Stanzkontur 11 führt zu einer wesentlich günstigeren Gleitreibung zwischen den Gesperreteilen 30, 31, also der Sperrklinke 5 auf der Drehfalle 2, sodass es hier nicht mehr zu den ungünstigen Geräuschbelästigungen kommen kann.The locking parts 30, 31 of the locking mechanism 8 are produced in a preferably multi-part stamping process from corresponding sheets, wherein the surface is characterized by a punched contour 14 at the latching surfaces 12, 13 kept free of the casing 10 initially at both locking parts 30, 31. However, this surface formation is changed in the area of the latching surface 13 by the fact that by twisting the component, in particular therefore the pawl 5, the ridges 18, 19 forming the punching contour 11 are inclined and in FIG. 3 are marked accordingly as inclined grooves 18 ', 19'. This stamped contour 11 leads to a much more favorable sliding friction between the locking parts 30, 31, so the pawl 5 on the catch 2, so it can not come here to the unfavorable noise nuisance.

Nicht besonders hervorgehoben ist, dass die Kanten 15, 16 der Drehfalle 2 und Sperrklinke 5 mit einer Kunststoffummantelung 10 versehen sind. Die Kanten 15, 16 sind somit von einer solchen Ummantelung verhüllt, lediglich im Bereich der Rastflächen 12, 13 und auch der Kontaktfläche 20 ist diese Ummantelung nicht vorhanden, sodass dort die besondere Oberflächenstruktur, wie sie aus den nachfolgenden Figuren zu entnehmen ist, wirksam werden kann. Die Oberflächenstruktur sorgt für eine Geräuschminimierung und eine Gleitreibungsminimierung, wobei beides zusammenwirkt.Not particularly emphasized is that the edges 15, 16 of the rotary latch 2 and pawl 5 are provided with a plastic sheath 10. The edges 15, 16 are thus covered by such a sheath, only in the region of the locking surfaces 12, 13 and also the contact surface 20, this sheath does not exist, so that there the special surface structure, as can be seen from the following figures, take effect can. The Surface texture minimizes noise and minimizes sliding friction, with both working together.

Figur 2 zeigt den Bereich der Rastfläche 12 auf der Drehfalle 2, die beim Öffnen und Schließen des Kraftfahrzeugschlosses 1 mit der Rastfläche 13 auf der Sperrklinke 5 korrespondieren muss. Dies bedeutet, dass die beiden Gesperreteile 30, 31 beim Öffnen und Schließen des Kraftfahrzeugschlosses 1 im Bereich ihrer Rastflächen 12, 13 aneinander oder bezüglich der Kanten 15, 16 sogar aufeinander reiben, was insbesondere bei den in Figur 2 gezeigten gerade verlaufenden Riefen 17 dann zu Problemen führen kann, wenn auch die Rastfläche 13 auf der Sperrklinke 5 gleich sind, d. h. gerade verlaufende Riefen bleibend aufweisen sollten. Dies ist aber wie der Vergleich von Figur 2 und 3 zeigt, hier vermieden, indem die Rastkontur der Rastfläche 13 schräg gestellt ist, indem das gesamte Bauteil, d. h. die Sperrklinke 5 um einen gewissen Winkel tordiert ist. FIG. 2 shows the region of the locking surface 12 on the rotary latch 2, which must correspond to the locking pawl 5 on opening and closing of the motor vehicle lock 1 with the locking surface 13. This means that the two locking parts 30, 31 during the opening and closing of the motor vehicle lock 1 in the region of their locking surfaces 12, 13 to each other or even rub against each other with respect to the edges 15, 16, which in particular in the FIG. 2 shown straight grooves 17 can then cause problems, even if the locking surface 13 on the pawl 5 are the same, ie should have straight running grooves. But this is like comparing FIGS. 2 and 3 shows, avoided here, by the locking contour of the locking surface 13 is inclined, by the entire component, ie the pawl 5 is twisted by a certain angle.

Figur 3 verdeutlicht, dass hier noch nicht der Endzustand erreicht ist, d. h. die Sperrklinke 5 muss weiter tordiert werden, um dann sicherzustellen, dass mindestens zwei Überdeckungen 25 vorhanden sein müssen. Die hier schräg gestellten Riefen 18', 19' insbesondere im Bereich der Hauptrast 22, führen zu einer Verringerung der Gleitreibung und der entstehenden Reibgeräusche, weil wie in Figur 3 verdeutlicht, die schräg gestellten Riefen 18', 19' nur an wenigen Punkten eine Überdeckung 25 aufweisen. Auch hier ist davon auszugehen, dass die Schrägstellung durch das Tordieren der Sperrklinke 5 um ihre Längsachse 38 bei etwa 5 - 15° liegt, um die angestrebten zwei Überdeckungen jeweils zu gewährleisten. Wichtig ist, dass es zu den geschilderten Überdeckungen 25 kommt, um auf diese Art und Weise die Bewegungen der Sperrklinke 5 auf der Drehfalle 2 nicht zu beeinträchtigen, sie also gleichförmig durchzuführen und dabei durch Gleitreibungsminderung auch die Geräusche so zu reduzieren, dass sie keine Belastung mehr darstellen. Mit 36 ist der verdrehte Teil der Sperrklinke 5 bezeichnet, wobei aber in der Regel wegen des Gesamtaufbaus der Sperrklinke 5 es sich als zweckmäßig herausgestellt hat, das gesamte Bauteil in sich so zu verdrehen, dass auf der Rastfläche 13 die schräg gestellten Riefen 18', 19' vorhanden sind. FIG. 3 illustrates that the final state is not reached here, ie the pawl 5 must be further twisted to ensure that at least two covers 25 must be present. The obliquely set grooves 18 ', 19' in particular in the region of the main catch 22, lead to a reduction of the sliding friction and the resulting friction noises, because as in FIG. 3 illustrates that the inclined grooves 18 ', 19' only at a few points have an overlap 25. Again, it can be assumed that the inclination by the twisting of the pawl 5 about its longitudinal axis 38 at about 5 - 15 ° to ensure the desired two overlaps each. It is important that it comes to the described coverings 25 so as not to affect the movements of the pawl 5 on the rotary latch 2 in this way, so they perform uniformly and thereby reduce by Gleitreibungsminderung the noise so that they no load represent more. With 36 of the twisted part of the pawl 5 is designated, but usually due to the overall structure of the pawl. 5 it has been found to be expedient to turn the entire component in such a way that on the latching surface 13, the inclined grooves 18 ', 19' are present.

Beim Vergleich von Figur 2 und Figur 3 wird deutlich, dass beim Aufeinandertreffen der Rastfläche 12 auf die Rastfläche 13, also den gegenüberliegenden Bereich 37 ein Verhaken der Riefen 17, 18 und 19 nicht eintreten kann.When comparing FIG. 2 and FIG. 3 It is clear that the clash of the grooves 17, 18 and 19 can not occur when the locking surface 12 on the locking surface 13, so the opposite region 37 coincides.

Figur 4 zeigt eine perspektivische Ansicht der Drehfalle 2, die um die hier nicht dargestellte Achse 3 verschwenkbar ist. Beim Verschwenken der Drehfalle 2 wird der Bügelschenkel 9, der in Figur 4 nicht wiedergegeben ist, in die Aufnahme 4 eingeführt oder von dieser befreit ist, sodass die Kraftfahrzeugtür dann geöffnet werden kann oder sich eben schließt, und dann in der Schließposition durch die Sperrklinke 5 arretiert wird. In Figur 4 erkennbar ist, dass durch das Stanzen der Drehfalle 2 eine deutlich erkennbare Kante 15 entsteht, deren Oberfläche wie weiter vorne erläutert durch die Stanzkontur 14 auf der Rastfläche 12 gekennzeichnet ist. Diese Stanzkontur 14 ist in Figur 4 nur angedeutet. Die Rastfläche 12 kennzeichnet die Hauptrast 22, d. h. die Position, in der die Sperrklinke 5 die Drehfalle 2 in der Schließposition an einem Rückschwenken hindert. Dann liegt, wie ebenfalls schon erwähnt, die Rastfläche 13 der Sperrklinke 5 auf der Rastfläche 12 der Drehfalle 2 auf und beide können mit verminderter Reibung sich aufeinander verschieben, ohne dass es zu den nachteiligen Geräuschen kommt, weil die geraden Riefen 17 der Drehfalle 2 und die schräg gestellten Riefen 18', 19' der Sperrklinke 5 nicht ineinander verhaken oder verrasten können. FIG. 4 shows a perspective view of the rotary latch 2, which is pivotable about the axis 3, not shown here. When pivoting the catch 2 of the bracket leg 9, the in FIG. 4 is not reproduced, is inserted into the receptacle 4 or exempt from this, so that the vehicle door can then be opened or just closes, and then locked in the closed position by the pawl 5. In FIG. 4 It can be seen that the stamping of the rotary catch 2 produces a clearly recognizable edge 15, the surface of which, as explained further above, is identified by the punched contour 14 on the latching surface 12. This punching contour 14 is in FIG. 4 only hinted. The locking surface 12 indicates the main catch 22, ie the position in which the pawl 5 prevents the catch 2 in the closed position at a pivoting back. Then, as already mentioned, the locking surface 13 of the pawl 5 on the locking surface 12 of the catch 2 and both can move with reduced friction to each other, without causing the adverse noise, because the straight grooves 17 of the catch 2 and the inclined grooves 18 ', 19' of the pawl 5 can not interlock or lock into each other.

Im Tiefengrund 27 der Aufnahme 4 ist erkennbar, dass hier eine von der übrigen Oberfläche der Kante 15 abweichende Oberfläche vorhanden ist, was insbesondere dadurch erreicht wird, dass hier keine Ummantelung 10 vorhanden und hier ein gesondertes Teil eingeschoben ist, um die Gleitwirkung der Drehfalle 2 am Bügelschenkel 9 positiv zu beeinflussen.In the bottom 27 of the receptacle 4 it can be seen that a surface deviating from the remaining surface of the edge 15 is present here, which is achieved, in particular, by the fact that no casing 10 is present here and here a separate part is inserted to positively influence the sliding action of the rotary latch 2 on the stirrup leg 9.

Claims (10)

  1. Method for producing the locking mechanism parts catch and pawl of a motor vehicle door latch, in which the catch and pawl are stamped to form vertical or near vertical edges with corresponding latching surfaces on the pawl and catch after which they are covered by a coating, except for the ratchet surfaces, characterized in that
    after stamping of the locking mechanism parts, one of the parts is twisted by a specified angle, in an area which would otherwise engage with parallel arranged grooves in the stamped profile of the other locking mechanism part.
  2. Method according to claim 1,
    characterized in that
    the stamped profile of the pawl containing the straight grooves is twisted by a specified angle so that the grooves of the stamped pawl profile are positioned at an angle in relation to the straight grooves of the other locking mechanism part.
  3. Method according to one of the above claims,
    characterized in that
    the locking mechanism part is twisted at an angle, resulting in at least two overlaps of straight and angled grooves.
  4. Method according to one of the above claims,
    characterized in that
    the twisting angle is set to 5-15° depending on the thickness of the locking mechanism part and gap between the grooves.
  5. Method according to one of the above claims,
    characterized in that
    the two locking mechanism parts, i.e. catch and pawl, are twisted to such an extent that the grooves of the facing latching areas of the locking mechanism parts contain respective overlapping or contact points.
  6. Motor vehicle door latch comprising a catch (2) and a pawl (5) locking the catch (2) when the motor vehicle door latch (1) is closed, in which both locking mechanism parts (30, 31) contain corresponding latching surfaces (12, 13) on the vertical edges (15, 16) produced during stamping and a coating (10), not covering the latching surfaces (12, 13),
    characterized in that
    one locking mechanism part (30) contains a latching surface (13) with a stamped profile (11) whose normally straight grooves (18, 19) are, after twisting of the locking mechanism part (30), arranged at an angel to the grooves (17) of the other locking mechanism part (31) and/or act as angled grooves (18', 19').
  7. Motor vehicle door latch according to claim 6,
    characterized in that
    the angled grooves (18', 19') are formed on the twisted part (36) of the pawl (5, 30).
  8. Motor vehicle door latch according to claim 6,
    characterized in that
    the two locking mechanism parts (30, 31) are inversely twisted by a respectively smaller angle.
  9. Motor vehicle door latch according to claim 6,
    characterized in that
    the catch (2) is twisted in the area (37) opposite the pawl (5) producing respective overlaps (25) on the latching surfaces (12, 13).
  10. Motor vehicle door latch according to claim 6,
    characterized in that
    one of the locking mechanism parts (30) and preferably the pawl (5) is twisted round its longitudinal axis (38).
EP13840182.3A 2012-12-12 2013-12-11 Method for producing motor vehicle locks with a twisted locking part edge Active EP2932004B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012024379.0A DE102012024379A1 (en) 2012-12-12 2012-12-12 Method for producing motor vehicle locks with twisted locking part edge
PCT/DE2013/000769 WO2014090214A2 (en) 2012-12-12 2013-12-11 Method for producing motor vehicle locks with a twisted locking part edge

Publications (2)

Publication Number Publication Date
EP2932004A2 EP2932004A2 (en) 2015-10-21
EP2932004B1 true EP2932004B1 (en) 2017-02-15

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US (1) US9856680B2 (en)
EP (1) EP2932004B1 (en)
JP (1) JP2016505734A (en)
KR (1) KR20150093817A (en)
CN (1) CN104981579B (en)
BR (1) BR112015013442A2 (en)
CA (1) CA2903271A1 (en)
DE (1) DE102012024379A1 (en)
MX (1) MX2015007350A (en)
RU (1) RU2015127198A (en)
WO (1) WO2014090214A2 (en)

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DE102013110194A1 (en) * 2013-09-16 2015-03-19 Kiekert Aktiengesellschaft Motor vehicle positioning device
CN107023232B (en) * 2016-01-29 2019-10-25 开开特股份公司 Motor vehicle lock

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DE102012024379A1 (en) 2014-03-27
CN104981579A (en) 2015-10-14
JP2016505734A (en) 2016-02-25
KR20150093817A (en) 2015-08-18
EP2932004A2 (en) 2015-10-21
RU2015127198A (en) 2017-01-12
WO2014090214A2 (en) 2014-06-19
US9856680B2 (en) 2018-01-02
US20150308166A1 (en) 2015-10-29
WO2014090214A3 (en) 2014-10-30
BR112015013442A2 (en) 2017-07-11
CA2903271A1 (en) 2014-06-19
CN104981579B (en) 2017-03-15
MX2015007350A (en) 2015-09-10

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