EP2893107B1 - Method for producing a one-piece lock striker - Google Patents

Method for producing a one-piece lock striker Download PDF

Info

Publication number
EP2893107B1
EP2893107B1 EP13823920.7A EP13823920A EP2893107B1 EP 2893107 B1 EP2893107 B1 EP 2893107B1 EP 13823920 A EP13823920 A EP 13823920A EP 2893107 B1 EP2893107 B1 EP 2893107B1
Authority
EP
European Patent Office
Prior art keywords
lock
starting blank
base plate
locking bolt
cold
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.)
Active
Application number
EP13823920.7A
Other languages
German (de)
French (fr)
Other versions
EP2893107A2 (en
Inventor
Thomas Waldmann
Frank Nieddu
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 EP2893107A2 publication Critical patent/EP2893107A2/en
Application granted granted Critical
Publication of EP2893107B1 publication Critical patent/EP2893107B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
    • E05B15/0205—Striking-plates, keepers, staples
    • E05B15/0295—Striking-plates, keepers, staples specially adapted for forked or bifurcated bolts
    • 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
    • E05B85/04—Strikers
    • E05B85/045—Strikers for bifurcated bolts
    • 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
    • B21D53/36—Making other particular articles clips, clamps, or like fastening or attaching devices, e.g. for electric installation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08—Upsetting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K13/00—Making locksmiths' goods, e.g. handles for cases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/005—Heat treatment of ferrous alloys containing Mn
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • 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
    • Y10T292/68—Keepers

Definitions

  • the invention relates to a method for producing a one-piece lock holder according to the preamble of claim 1 and a lock holder produced by this method.
  • lock holders in question are found in particular in locking systems such as motor vehicle locks and locks.
  • locking systems such as motor vehicle locks and locks.
  • the invention will be explained with reference to the field of application of the motor vehicle locks, which, however, is not to be understood as limiting.
  • a lock holder usually consists of a base plate and a lock bracket, also called latch bolt or lock holder bracket.
  • the base plate typically has recesses, for example in the form of bores, in order to enable, for example, attachment of the lock holder to a body of a motor vehicle.
  • the lock bracket is formed such that a recess is present in the middle, so that the lock bracket in the installed state interacts with a lock or a lock.
  • the lock holder in the closed state of a motor vehicle door or flap in holding engagement with a catch of a lock o. The like. Stand to shoot a flap or door of a vehicle safely.
  • a lock of a motor vehicle generally has a locking mechanism comprising a catch and at least one pawl, with which a rotation of the catch in the opening direction can be blocked.
  • the publication DE 10 2010 024 510 A1 discloses a method of manufacturing a lock holder in which a raw material is first sheared off and then hot worked to processing temperatures above the recrystallization temperature and formed into a lock holder by pressure forming by forge hammers.
  • the publication DE 10 2010 011 716 A1 discloses a method of manufacturing a lock holder in which a T-shaped semifinished product is formed by cold extrusion from a raw material.
  • the lock holder can be formed from a round stock by massive forming into a T-shaped stock.
  • the T-shaped semifinished product is further processed, for example by cold punching to provide retaining holes in the base plate and a recess in the lock bracket.
  • the method is designed to save a costly reworking of the lock holder.
  • the forming process by plastic change of a given fixed starting blank is basically associated with the problem that high forming forces are required, which at the same time have a high tool stress result. Furthermore, appropriately sized machines such as presses are required to provide the high forming forces.
  • a lock holder is formed from a metallic starting blank by cold heading.
  • the starting blank is formed essentially block-shaped or cylindrical before the forming process and is reshaped such that a cold hardening of the lock holder takes place.
  • a shape-changing shape of the starting blank that is close to the final shape preferably takes place.
  • the reshaped starting blank after the forming process then substantially corresponds to the final shape of the lock holder.
  • Notches e.g. in the form of holes on the base plate and the recess in the lock bracket can in principle be formed depending on the requirements already in the forming process or in a post-processing, for example by punching or cutting.
  • Essential is the consideration to make the transformation of the starting blank to a one-piece lock holder with a substantially block or cylindrical starting blank in order to form a stress-resistant lock holder in a targeted manner, which also can be produced advantageously also manufacturing technology.
  • a targeted adjustment of the mechanical properties of the lock holder which lead to very specific application properties of a lock holder produced in this way.
  • the cold forming also causes an increase in strength, also called strain hardening.
  • materials can be used for the starting blank, which have a low strength in the original state and can be subjected to higher stress as a formed lock holder due to work hardening, without the need to use high-quality materials as the starting blank.
  • the forming forces required for the cold forming can be deliberately reduced, so that the high tool stresses are advantageously minimized.
  • the machines required for the production, such as presses, can be suitably dimensioned smaller, so that an overall optimized production is made possible.
  • the forming of the blank is done by cold heading.
  • the starting blank is largely utilized in such a forming process, so that large material savings are possible, in particular compared to machining processes.
  • the starting blank is therefore preferably equal in volume to the formed lock holder.
  • cold heading enables particularly short production cycles, even for complex molded parts, since the entire blank volume is reshaped near the end of the mold at the same time or in several forming stages.
  • a wire or a profile wire is used as the starting blank, preferably with a cross-sectional area of 450 mm 2 to 1125 mm 2 .
  • wires or profile wires can be processed in a simple manner by shearing or sawing suitable.
  • the selective selection of the cross-sectional area for a wire or profile wire contributes to the fact that the cold heading produces lock retainers with optimized strength and fatigue strength values.
  • the starting blank has a width of 15 mm to 25 mm and / or a length of 30 mm to 45 mm.
  • the diameter is preferably 15 mm to 35 mm.
  • the height of the starting blank is at least 25 mm, more preferably 25 mm to 45 mm. It has been shown that such sized starting blanks are particularly advantageous for the proposed method and achieve particularly good results in terms of mechanical properties and on the application properties of a lock holder, as experiments have shown.
  • the main shape change during the forming process is substantially perpendicular to the cross-sectional area or to the profile surface of the starting blank.
  • the cross-sectional area or profile surface is basically defined by the width and the length, with essentially cylindrical starting blanks through the diameter.
  • the main shape change significantly affects the solidification effect during forming, so that the work hardening of the lock holder is suitably optimized in this way.
  • the diameter of the base plate is preferably between 40 mm and up to 80 mm, preferably 50 mm.
  • at least two recesses in the form of bores are provided on the base plate, which allow attachment of the lock holder.
  • the recesses are preferably provided at the edge of the base plate in order to enable a stable attachment, for example to a body of a vehicle.
  • Recesses in the base plate and / or a recess in the lock bracket can already be formed during the forming process by special tool inserts. Alternatively, it is possible to provide the recesses and the recess in a separate process step, for example by punching or cutting.
  • Advantageous steel grades are: 38Cr2, 46Cr2, 34Cr4 34CrS4, 37Cr4, 37CrS4, 41Cr4, 41CrS4, 25CrMo4, 25CrMoS4, 34CrMo4, 34CrMoS4, 42CrMo4, 42CrMoS4, 50CrMo4, 34CrNiMo6, 30CrNiMo8, 35NiCr6, 36NiCrMo16, 39NiCrMo3, 30NiCrMo16-6, 51CrV4.
  • manganese and / or boron alloy steels such as 20MnB5, 30MnB5, 38MnB5, 27MnCrB5-2, 33MnCrB5-2 and 39MnCrB6-2 are particularly applicable.
  • the use of cold upset or cold pressed steels has proven to be advantageous, especially in the form of wires.
  • Advantageous steel grades are: Cq 22 (material number: 1.1152), C35EC, C35RC, C45EC, C45RX, 37Mo2, 38Cr2, 46Cr2, 34Cr4, 37Cr4, 41Cr4, 41CrS4, 25CrMo4, 25CrMoS4, 34CrMo4, 37CrMo4, 42CrMo4, 42CrMoS4, 34CrNiMo6, 41NiCrMo7- 3-2.
  • boron-alloyed steels are used. Particularly advantageously applicable are: 17B2, 23B2, 28B2, 33B2, 38B2, 17MnB4, 20MnB4, 23MnB4, 27MnB4, 30MnB4, 36MnB4, 37MnB5, 30MoB1, 32CrB4, 36CrB4, 31CrMoB2-1.
  • the lock bracket and base plate are made in one piece during the forming process. In order to stressfully execute the lock bracket protruding from the base plate, it is provided in a preferred embodiment to provide a reinforced transitional area between the base plate and the lock bracket. The reinforcement of the transition area increases the load capacity of the lock bracket, so that the lock holder can absorb improved forces.
  • the forming process of the starting blank is carried out in several steps or stages. Depending on the requirement, the forming process may comprise two or more steps. In the case of dive diving, a tapering, if appropriate, is preferred Pre-upsetting and finally a finish upsetting carried out to cause no impermissible changes in shape in particular material separations at individual points and to allow flow during the forming of the material.
  • the lock holder is subjected to a heat treatment after the forming, in particular a coating.
  • the lock holder is preferably subjected to a defined temperature-time sequence, which is optionally coupled with additional chemical or mechanical effects.
  • a suitable heat treatment can also increase the tensile strength of the lock holder depending on the requirements and material used. In particular, tensile strengths of greater than 30 kN are possible when heat treatments are carried out on formed lock holders.
  • a surface treatment in particular a flat embossing, smooth embossing or embossing is carried out. It is also possible to rework specific areas of the lock holder specifically by surface treatment.
  • a special surface structure in the form of grooves or knurls can be provided at the area which engages in the installed state of the lock holder with a catch of a lock, in order to avoid disturbing noise loads such. Prevent creaking.
  • the strength of the lock bracket exceeds the thickness of the base plate, preferably at least two times.
  • the lock holder is then in optimal Way designed for the stresses during use.
  • the thickness of the base plate is preferably at least 1 mm, for example 3 mm on average.
  • Fig.1 to Fig. 2 illustrated lock holder 1 represents a typical application for the proposed solution.
  • the proposed solution is explained with reference to a lock holder for a motor vehicle lock. However, this is not restrictive.
  • the in Fig. 1 Lock holder shown has a base plate 2 and a lock bracket 3.
  • the lock bracket 3 has a recess 5 in the center in order to enable engagement with a rotary latch of a lock when installed.
  • the recess 5 can already be formed during the forming process of the starting blank 11 by appropriate tools or in a downstream processing step such as by punching or machining.
  • two legs 6 are arranged on both sides of the recess 5, which are in communication with the base plate 2.
  • the base plate 2 has in this case two recesses 4 in the form of holes which are cone-shaped and allow attachment, for example, to a body of a vehicle.
  • the area between base plate 2 and lock bracket 3, so the Baseplate-bracket transition 7 is preferably made reinforced for the purpose of constructive stiffening.
  • bracket-leg transitions 9 with transition radii are preferably provided, in order to optimize the manufacture of the lock bracket 1 in a suitable manner for a reduced tool load.
  • the rounded bracket-leg transitions 9 can be formed particularly advantageous during cold forming.
  • the diameter of the base plate 2 is in particular, depending on the configuration of the starting blank 11, not greater than 50 mm or alternatively 60 mm to 80 mm.
  • the recesses 4 are arranged in particular on the edge side on opposite sides of the base plate 2.
  • the recesses have a distance of 30 mm from each other.
  • the thickness 13 of the base plate 2 is preferably at least 3 mm, preferably 5 mm, more preferably 4 mm.
  • the base plate bracket transition 7 is made reinforced, so that increases the strength of the base plate 2 in this area.
  • the thickness 14 of the lock bracket 3 is preferably greater than the thickness 13 of the base plate 2, preferably more than twice, to ensure a stress-based power consumption by the lock bracket 3.
  • Fig. 2 b illustrates how the strength increases 13 of the base plate 2 in the base plate bracket transition 7.
  • the height 10 of the lock bracket 3 is preferably smaller than the diameter 8 of the base plate.
  • the height 10 of the lock bracket is not greater than 50 mm, such as 34 mm.
  • a starting blank 11 is formed substantially block-shaped or cylindrical, in such a way that takes place with the cold working strain hardening.
  • the starting blank 11 is preferably a wire or profile wire, which has been cold-pressed or cold-pressed in particular.
  • the starting blank preferably has a square, rectangular or round profile, the list not being restricted, but may have any shapes corresponding to the manufacturing process, such as. B. oval profiles.
  • a cold forming is selectively effected, which is connected to a corresponding increase in the strength in the lock holder 1, without an undesirable high tool stress occurs.
  • a substantially block-shaped starting blank The width 12 of the starting blank 11 is preferably 15 mm to 35 mm.
  • the length 13 is preferably 30 mm to 45 mm.
  • the height 14 is preferably 25 mm to 45 mm.
  • the cross-sectional area or the profile surface of the starting blank 11 results from width 12 and length 13 of the starting blank 11.
  • the lock holder 1 formed therefrom then preferably has a base plate 2 with a diameter of not more than 50 mm.
  • Fig. 3 b illustrates a substantially cylindrical starting blank 11.
  • the diameter 15 of the starting blank 11 is preferably 15 mm to 35 mm.
  • the cross-sectional area or the profile surface of the starting blank 11 is determined by the diameter 15.
  • the height 14 is preferably 30 mm to 60 mm.
  • the formed lock holder 1 then preferably has a diameter of 60 mm to 80 mm, such as 70 mm.
  • lock retainers 1 produced in this way can withstand the required tensile stresses.
  • the lock holder 1 thus withstand a tensile stress of 22 kN, without the lock holder 1 were subjected to an additional heat treatment.
  • the strength values after the forming process are approximately 740 MPa to 835 MPa.
  • tempering for example by tempering.
  • the lock holders 1 tempered in this way withstand a tensile load of at least 30 kN.
  • the strength values are then about 920 MPa to 990 MPa.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Forging (AREA)
  • Heat Treatment Of Articles (AREA)
  • Lock And Its Accessories (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Herstellung eines einteiligen Schlosshalters gemäß dem Oberbegriff des Anspruchs 1 sowie einen nach diesem Verfahren hergestellten Schlosshalter.The invention relates to a method for producing a one-piece lock holder according to the preamble of claim 1 and a lock holder produced by this method.

Die in Rede stehenden Schlosshalter finden sich insbesondere bei Schließsystemen wie Kraftfahrzeugschlössern und -verriegelungen. Im Folgenden wird die Erfindung anhand des Anwendungsbereichs der Kraftfahrzeugschlösser erläutert, was allerdings nicht beschränkend zu verstehen ist.The lock holders in question are found in particular in locking systems such as motor vehicle locks and locks. In the following, the invention will be explained with reference to the field of application of the motor vehicle locks, which, however, is not to be understood as limiting.

Ein Schlosshalter besteht üblicherweise aus einer Grundplatte und einem Schlossbügel, auch Schließbolzen oder Schlosshalterbügel genannt. Die Grundplatte weist typischerweise Aussparungen zum Beispiel in Form von Bohrungen auf, um hierüber beispielsweise eine Befestigung des Schlosshalters an eine Karosserie eines Kraftfahrzeugs zu ermöglichen. Der Schlossbügel ist derart ausgeformt, dass mittig eine Ausnehmung vorhanden ist, so dass der Schlossbügel im eingebauten Zustand mit einem Schloss bzw. einer Verriegelung zusammenwirkt. So kann der Schlosshalter im geschlossenen Zustand einer Kraftfahrzeugtür oder Klappe in haltendem Eingriff mit einer Drehfalle eines Schlosses o. dgl. stehen, um eine Klappe oder Tür eines Fahrzeugs sicher zu verschießen.A lock holder usually consists of a base plate and a lock bracket, also called latch bolt or lock holder bracket. The base plate typically has recesses, for example in the form of bores, in order to enable, for example, attachment of the lock holder to a body of a motor vehicle. The lock bracket is formed such that a recess is present in the middle, so that the lock bracket in the installed state interacts with a lock or a lock. Thus, the lock holder in the closed state of a motor vehicle door or flap in holding engagement with a catch of a lock o. The like. Stand to shoot a flap or door of a vehicle safely.

Ein Schloss eines Kraftfahrzeugs weist in der Regel ein Gesperre umfassend eine Drehfalle und wenigstens eine Sperrklinke auf, mit der eine Drehung der Drehfalle in Öffnungsrichtung blockiert werden kann.A lock of a motor vehicle generally has a locking mechanism comprising a catch and at least one pawl, with which a rotation of the catch in the opening direction can be blocked.

Aufgrund des Eingriffes zwischen Schlosshalter und Drehfalle beim Schließvorgang, aber auch beim Öffnen des Schlosses, ist ein Schlosshalter regelmäßig hohen Belastungen ausgesetzt. Insbesondere im Crashfall, wo besonders starke Verformungen auftreten.Due to the engagement between lock holder and catch during the closing process, but also when opening the lock, a lock holder is regularly exposed to high loads. Especially in the event of a crash, where particularly strong deformations occur.

Für eine Herstellung eines einteiligen Schlosshalters ist es bekannt, ein Ausgangsmaterial - also einen Rohling - durch Kaltfließpressen oder Kaltstauchen massiv umzuformen. Die Druckschrift DE 10 2007 041 479 A1 offenbart einen einstückigen Schlosshalter für ein Kraftfahrzeugschließsystem, der als Massivbauteil mit verschiedenen Querschnittsstärken ausgeführt ist, um eine günstige Fertigung sowie verbesserte mechanische Eigenschaften zu erzielen.For a production of a one-piece lock holder, it is known to massively transform a starting material - ie a blank - by cold extrusion or cold heading. The publication DE 10 2007 041 479 A1 discloses a one-piece lock retainer for a motor vehicle locking system designed as a solid component of various cross-sectional thicknesses to achieve favorable manufacturing and improved mechanical properties.

Die Druckschrift DE 10 2010 024 510 A1 offenbart ein Verfahren zur Herstellung eines Schlosshalters, bei dem ein Rohmaterial zunächst abgeschert wird und dann zum Warmschmieden auf Bearbeitungstemperaturen oberhalb der Rekristallisationstemperatur gebracht und durch Druckumformen mittels Schmiedehämmern zu einem Schlosshalter geformt wird.The publication DE 10 2010 024 510 A1 discloses a method of manufacturing a lock holder in which a raw material is first sheared off and then hot worked to processing temperatures above the recrystallization temperature and formed into a lock holder by pressure forming by forge hammers.

Die Druckschrift DE 10 2010 011 716 A1 offenbart ein Verfahren zur Herstellung eines Schlosshalters, bei dem durch Kaltfließpressen aus einem Rohmaterial ein T-förmiges Halbzeug geformt wird. Der Schlosshalter kann aus einem runden Rohmaterial durch massives Umformen zu einem T-förmigen Halbzeug geformt werden. Anschließend wird das T-förmige Halbzeug beispielsweise durch Kaltstanzen weiterverarbeitet, um Haltebohrungen in der Grundplatte und eine Ausnehmung im Schlossbügel vorzusehen. Das Verfahren ist dafür konzipiert, eine aufwendige Nachbearbeitung des Schlosshalters einzusparen.The publication DE 10 2010 011 716 A1 discloses a method of manufacturing a lock holder in which a T-shaped semifinished product is formed by cold extrusion from a raw material. The lock holder can be formed from a round stock by massive forming into a T-shaped stock. Subsequently, the T-shaped semifinished product is further processed, for example by cold punching to provide retaining holes in the base plate and a recess in the lock bracket. The method is designed to save a costly reworking of the lock holder.

Aus der noch nicht veröffentlichen Druckschrift DE 10 2010 054 369 ist ein Verfahren zum Herstellen von Schlosshaltern bekannt, bei dem durch Kaltfließpressen ein T-förmiges Halbzeug geformt wird und anschließend Haltebohrungen und Ausnehmungen durch Ausstanzen gebildet werden. Zudem wird für die Ausformung eines S-Schlages beim Umformen zu einem T-förmigen Halbzeug eine Materialwulst auf dem zur Grundplatte parallelen Schenkel des Schlossbügels angeordnet. Der S-Schlag dient in erster Linie dazu, eine Verformung und ein Verhaken mit der Schlossplatte im Crashfall zu vermeiden, so dass ein Kraftfahrzeugschloss weiter zuverlässig geöffnet werden kann.From the not yet published publication DE 10 2010 054 369 a method for producing lock holders is known in which by cold extrusion a T-shaped semi-finished product is formed and then holding holes and recesses are formed by punching. In addition, for the formation of an S-blow during forming to a T-shaped semi-finished a bead of material arranged on the leg parallel to the base plate of the lock strap. The S-stroke serves primarily to avoid deformation and snagging with the lock plate in the event of a crash, so that a motor vehicle lock can be further reliably opened.

Der Umformvorgang durch plastische Änderung eines vorgegebenen festen Ausgangsrohlings ist grundsätzlich mit dem Problem verbunden, dass hohe Umformkräfte erforderlich sind, die zugleich eine hohe Werkzeugbeanspruchung zur Folge haben. Ferner sind für die Bereitstellung der hohen Umformkräfte entsprechend dimensionierte Maschinen wie Pressen erforderlich.The forming process by plastic change of a given fixed starting blank is basically associated with the problem that high forming forces are required, which at the same time have a high tool stress result. Furthermore, appropriately sized machines such as presses are required to provide the high forming forces.

Es ist Aufgabe der Erfindung, die Herstellung eines Schlosshalters weiter zu entwickeln.It is an object of the invention to further develop the production of a lock holder.

Die Aufgabe der Erfindung wird durch ein Verfahren mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.The object of the invention is achieved by a method having the features of claim 1. Advantageous embodiments emerge from the subclaims.

Nach dem beanspruchten Verfahren wird ein Schlosshalter aus einem metallischen Ausgangsrohling durch Kaltstauchen umgeformt. Der Ausgangsrohling ist vor dem Umformvorgang im Wesentlichen block- oder zylinderförmig ausgebildet und wird derart umgeformt, dass eine Kaltverfestigung des Schlosshalters erfolgt.According to the claimed method, a lock holder is formed from a metallic starting blank by cold heading. The starting blank is formed essentially block-shaped or cylindrical before the forming process and is reshaped such that a cold hardening of the lock holder takes place.

Bevorzugt erfolgt beim Umformvorgang eine endformnahe Formänderung des Ausgangsrohlings. Der umgeformte Ausgangsrohling entspricht nach dem Umformvorgang dann im Wesentlichen der Endform des Schlosshalters. Aussparungen z.B. in Form von Bohrungen an der Grundplatte sowie die Ausnehmung im Schlossbügel können grundsätzlich je nach Anforderung bereits im Umformvorgang oder in einer Nachbearbeitung beispielsweise durch Stanzen oder Schneiden ausgebildet werden.During the forming process, a shape-changing shape of the starting blank that is close to the final shape preferably takes place. The reshaped starting blank after the forming process then substantially corresponds to the final shape of the lock holder. Notches e.g. in the form of holes on the base plate and the recess in the lock bracket can in principle be formed depending on the requirements already in the forming process or in a post-processing, for example by punching or cutting.

Wesentlich ist die Überlegung, die Umformung des Ausgangsrohlings zu einem einteiligen Schlosshalter mit einem im Wesentlichen block- oder zylinderförmigen Ausgangsrohling vorzunehmen, um in gezielter Weise einen beanspruchungsgerechten Schlosshalter auszubilden, der zudem auch fertigungstechnisch vorteilhaft herstellbar ist. Mit dem vorschlagsgemäßen Verfahren gelingt eine gezielte Einstellung der mechanischen Eigenschaften des Schlosshalters, die zu ganz bestimmten Anwendungseigenschaften eines so hergestellten Schlosshalters führen. Die Kaltumformung bewirkt ferner eine Erhöhung der Festigkeit, auch Kaltverfestigung genannt. Dadurch können Materialien für den Ausgangsrohling verwendet werden, die im ursprünglichen Zustand eine niedrige Festigkeit aufweisen und als umgeformter Schlosshalter aufgrund der Kaltverfestigung höher beansprucht werden können, ohne dass hochwertige Werkstoffe als Ausgangsrohling eingesetzt werden müssen.Essential is the consideration to make the transformation of the starting blank to a one-piece lock holder with a substantially block or cylindrical starting blank in order to form a stress-resistant lock holder in a targeted manner, which also can be produced advantageously also manufacturing technology. With the proposed method, a targeted adjustment of the mechanical properties of the lock holder, which lead to very specific application properties of a lock holder produced in this way. The cold forming also causes an increase in strength, also called strain hardening. As a result, materials can be used for the starting blank, which have a low strength in the original state and can be subjected to higher stress as a formed lock holder due to work hardening, without the need to use high-quality materials as the starting blank.

Darüber hinaus lassen sich durch die ganz bestimmte Formgebung des Ausgangsrohlings die für die Kaltumformung erforderlichen Umformkräfte gezielt reduzieren, so dass die hohen Werkzeugbeanspruchungen vorteilhaft minimiert werden. Die für die Herstellung benötigten Maschinen wie Pressen lassen sich in geeigneter Weise kleiner dimensionieren, so dass eine insgesamt optimierte Fertigung ermöglicht wird.In addition, due to the very specific shaping of the starting blank, the forming forces required for the cold forming can be deliberately reduced, so that the high tool stresses are advantageously minimized. The machines required for the production, such as presses, can be suitably dimensioned smaller, so that an overall optimized production is made possible.

Die Umformung des Rohlings erfolgt durch Kaltstauchen. Der Ausgangsrohling wird bei einem derartigen Umformverfahren weitgehend ausgenutzt, so dass große Stoffeinsparungen insbesondere gegenüber spanenden Bearbeitungsverfahren möglich sind. Der Ausgangsrohling ist daher vorzugsweise volumengleich zu dem umgeformten Schlosshalter. Darüber hinaus ermöglicht Kaltstauchen besonders kurze Fertigungszyklen selbst bei komplexen Formteilen, da das gesamte Rohlingvolumen gleichzeitig oder in mehreren Umformstufen endformnah umgeformt wird.The forming of the blank is done by cold heading. The starting blank is largely utilized in such a forming process, so that large material savings are possible, in particular compared to machining processes. The starting blank is therefore preferably equal in volume to the formed lock holder. In addition, cold heading enables particularly short production cycles, even for complex molded parts, since the entire blank volume is reshaped near the end of the mold at the same time or in several forming stages.

Bei einer Ausführungsform der Erfindung wird als Ausgangsrohling ein Draht bzw. ein Profildraht verwendet, vorzugsweise mit einer Querschnittsfläche von 450 mm2 bis 1125 mm2. Zur Verarbeitung als Ausgangsrohling im vorschlagsgemäßen Verfahren lassen sich Drähte bzw. Profildrähte in einfacher Weise durch Abscheren oder Sägen geeignet verarbeiten. Die gezielte Auswahl der Querschnittsfläche für einen Draht bzw. Profildraht trägt dazu bei, dass durch das Kaltstauchen Schlosshalter mit optimierten Festigkeits- und Dauerfestigkeitswerten hergestellt werden. Bei einer Ausführungsform weist der Ausgangsrohling eine Breite von 15 mm bis 25 mm und/oder eine Länge von 30 mm bis 45 mm auf. Im Falle eines im Wesentlichen zylinderförmigen Ausgangsrohling ist der Durchmesser bevorzugt 15 mm bis 35 mm. In weiterer Ausgestaltung ist die Höhe des Ausgangsrohlings wenigstens 25 mm, weiter bevorzugt 25 mm bis 45 mm. Es hat sich gezeigt, dass sich derartig dimensionierte Ausgangsrohlinge besonders vorteilhaft für das vorschlagsgemäße Verfahren eignen und besonders gute Ergebnisse im Hinblick auf die mechanischen Eigenschaften sowie auf die Anwendungseigenschaften eines Schlosshalters erzielen, wie Versuche gezeigt haben.In one embodiment of the invention, a wire or a profile wire is used as the starting blank, preferably with a cross-sectional area of 450 mm 2 to 1125 mm 2 . For processing as starting blank in the proposed method, wires or profile wires can be processed in a simple manner by shearing or sawing suitable. The selective selection of the cross-sectional area for a wire or profile wire contributes to the fact that the cold heading produces lock retainers with optimized strength and fatigue strength values. In one embodiment, the starting blank has a width of 15 mm to 25 mm and / or a length of 30 mm to 45 mm. In the case of a substantially cylindrical starting blank, the diameter is preferably 15 mm to 35 mm. In a further embodiment, the height of the starting blank is at least 25 mm, more preferably 25 mm to 45 mm. It has been shown that such sized starting blanks are particularly advantageous for the proposed method and achieve particularly good results in terms of mechanical properties and on the application properties of a lock holder, as experiments have shown.

Um eine günstige Verfestigungswirkung im Schlosshalter zu erzielen, erfolgt bei einer Ausführungsform die Hauptformänderung beim Umformvorgang im Wesentlichen senkrecht zur Querschnittsfläche bzw. zur Profilfläche des Ausgangsrohlings. Die Querschnittsfläche bzw. Profilfläche wird grundsätzlich durch die Breite und die Länge definiert, bei im Wesentlichen zylinderförmigen Ausgangsrohlingen durch den Durchmesser. Die Hauptformänderung beeinflusst maßgeblich die Verfestigungswirkung beim Umformen, so dass auf diese Weise die Kaltverfestigung des Schlosshalters geeignet optimiert wird.In order to achieve a favorable solidification effect in the lock holder, in one embodiment, the main shape change during the forming process is substantially perpendicular to the cross-sectional area or to the profile surface of the starting blank. The cross-sectional area or profile surface is basically defined by the width and the length, with essentially cylindrical starting blanks through the diameter. The main shape change significantly affects the solidification effect during forming, so that the work hardening of the lock holder is suitably optimized in this way.

Der Durchmesser der Grundplatte ist je nach Ausgestaltung des Ausgangsrohlings bevorzugt zwischen 40 mm und bis 80 mm, vorzugsweise 50 mm. Vorzugsweise sind an der Grundplatte wenigstens zwei Aussparungen in Form von Bohrungen vorgesehen, die eine Befestigung des Schlosshalters ermöglichen. Die Aussparungen sind vorzugsweise randseitig an der Grundplatte vorgesehen, um eine stabile Befestigung beispielsweise an eine Karosserie eines Fahrzeugs zu ermöglichen.Depending on the configuration of the starting blank, the diameter of the base plate is preferably between 40 mm and up to 80 mm, preferably 50 mm. Preferably, at least two recesses in the form of bores are provided on the base plate, which allow attachment of the lock holder. The recesses are preferably provided at the edge of the base plate in order to enable a stable attachment, for example to a body of a vehicle.

Aussparungen in der Grundplatte und/oder eine Ausnehmung im Schlossbügel können bereits beim Umformvorgang durch spezielle Werkzeugeinsätze gebildet werden. Alternativ ist es möglich, die Aussparungen sowie die Ausnehmung in einem separaten Verfahrensschritt beispielsweise durch Ausstanzen oder Ausschneiden vorzusehen.Recesses in the base plate and / or a recess in the lock bracket can already be formed during the forming process by special tool inserts. Alternatively, it is possible to provide the recesses and the recess in a separate process step, for example by punching or cutting.

Es hat sich in Versuchen gezeigt, dass sich das vorschlagsgemäße Verfahren besonders gut mit Vergütungsstählen als Werkstoff für die Ausgangsrohlinge anwenden lässt. Vorteilhafte Stahlsorten sind: 38Cr2, 46Cr2, 34Cr4 34CrS4, 37Cr4, 37CrS4, 41Cr4, 41CrS4, 25CrMo4, 25CrMoS4, 34CrMo4, 34CrMoS4, 42CrMo4, 42CrMoS4, 50CrMo4, 34CrNiMo6, 30CrNiMo8, 35NiCr6, 36NiCrMo16, 39NiCrMo3, 30NiCrMo16-6, 51CrV4.It has been shown in experiments that the proposed method can be used particularly well with tempered steels as the material for the starting blanks. Advantageous steel grades are: 38Cr2, 46Cr2, 34Cr4 34CrS4, 37Cr4, 37CrS4, 41Cr4, 41CrS4, 25CrMo4, 25CrMoS4, 34CrMo4, 34CrMoS4, 42CrMo4, 42CrMoS4, 50CrMo4, 34CrNiMo6, 30CrNiMo8, 35NiCr6, 36NiCrMo16, 39NiCrMo3, 30NiCrMo16-6, 51CrV4.

Um insbesondere die Streckgrenze und Festigkeit zu erhöhen, sind besonders vorteilhaft mangan- und/oder borlegierte Stähle wie 20MnB5, 30MnB5, 38MnB5, 27MnCrB5-2, 33MnCrB5-2 und 39MnCrB6-2 anwendbar. Ganz generell hat sich die Anwendung von kaltgestauchten- bzw. kaltgepressten Stählen als vorteilhaft erwiesen, insbesondere in Form von Drähten. Vorteilhafte Stahlsorten sind: Cq 22 (Werkstoffnummer: 1.1152), C35EC, C35RC, C45EC, C45RX, 37Mo2, 38Cr2, 46Cr2, 34Cr4, 37Cr4, 41Cr4, 41CrS4, 25CrMo4, 25CrMoS4, 34CrMo4, 37CrMo4, 42CrMo4, 42CrMoS4, 34CrNiMo6, 41NiCrMo7-3-2.In particular, to increase yield strength and toughness, manganese and / or boron alloy steels such as 20MnB5, 30MnB5, 38MnB5, 27MnCrB5-2, 33MnCrB5-2 and 39MnCrB6-2 are particularly applicable. In general, the use of cold upset or cold pressed steels has proven to be advantageous, especially in the form of wires. Advantageous steel grades are: Cq 22 (material number: 1.1152), C35EC, C35RC, C45EC, C45RX, 37Mo2, 38Cr2, 46Cr2, 34Cr4, 37Cr4, 41Cr4, 41CrS4, 25CrMo4, 25CrMoS4, 34CrMo4, 37CrMo4, 42CrMo4, 42CrMoS4, 34CrNiMo6, 41NiCrMo7- 3-2.

Um insbesondere einen Schlosshalter mit höherer Festigkeit zu realisieren, werden borlegierte Stähle verwendet. Besonders vorteilhaft anwendbar sind: 17B2, 23B2, 28B2, 33B2, 38B2, 17MnB4, 20MnB4, 23MnB4, 27MnB4, 30MnB4, 36MnB4, 37MnB5, 30MoB1, 32CrB4, 36CrB4, 31CrMoB2-1. Schlossbügel und Grundplatte werden beim Umformvorgang einteilig hergestellt. Um den aus der Grundplatte vorstehenden Schlossbügel beanspruchungsgerecht auszuführen, ist in einer bevorzugten Ausgestaltung vorgesehen, zwischen Grundplatte und Schlossbügel einen verstärkten Übergangsbereich vorzusehen. Die Verstärkung des Übergangsbereiches erhöht die Belastbarkeit des Schlossbügels, so dass der Schlosshalter verbessert Kräfte aufzunehmen vermag.In particular, to realize a lock holder with higher strength, boron-alloyed steels are used. Particularly advantageously applicable are: 17B2, 23B2, 28B2, 33B2, 38B2, 17MnB4, 20MnB4, 23MnB4, 27MnB4, 30MnB4, 36MnB4, 37MnB5, 30MoB1, 32CrB4, 36CrB4, 31CrMoB2-1. The lock bracket and base plate are made in one piece during the forming process. In order to stressfully execute the lock bracket protruding from the base plate, it is provided in a preferred embodiment to provide a reinforced transitional area between the base plate and the lock bracket. The reinforcement of the transition area increases the load capacity of the lock bracket, so that the lock holder can absorb improved forces.

Bevorzugt wird der Umformvorgang des Ausgangsrohlings in mehreren Schritten bzw. Stufen durchgeführt. Je nach Anforderung kann der Umformvorgang zwei oder mehr Schritte bzw. Stufen umfassen. Beim Kallstauchen wird bevorzugt ein Verjüngen, gegebenenfalls ein Vorstauchen und schließlich ein Fertigstauchen durchgeführt, um keine unzulässigen Formänderungen insbesondere Werkstofftrennungen an einzelnen Stellen hervorzurufen und ein Fließen beim Umformen des Werkstoffs zu ermöglichen.Preferably, the forming process of the starting blank is carried out in several steps or stages. Depending on the requirement, the forming process may comprise two or more steps. In the case of dive diving, a tapering, if appropriate, is preferred Pre-upsetting and finally a finish upsetting carried out to cause no impermissible changes in shape in particular material separations at individual points and to allow flow during the forming of the material.

Um die Eigenschaften wie Festigkeit, Härte und Dehnung zu beeinflussen und Eigenspannungen im umgeformten Schlosshalter zu vermindern, wird bei einer Ausführungsform der Schlosshalter nach der Umformung einer Wärmebehandlung insbesondere einer Vergütung unterzogen. Hierbei wird der Schlosshalter bevorzugt einer definierten Temperatur-Zeit-Folge unterworfen, die gegebenenfalls mit zusätzlichen chemischen oder mechanischen Einwirkungen gekoppelt wird. Durch eine geeignete Wärmebehandlung lässt sich ferner die Zugfestigkeit des Schlosshalters je nach Anforderungen und verwendeten Werkstoff erhöhen. Mit der Durchführung von Wärmebehandlungen an umgeformten Schlosshaltern sind insbesondere Zugfestigkeiten von größer als 30 kN möglich.In order to influence the properties such as strength, hardness and elongation and to reduce residual stresses in the formed lock holder, in one embodiment, the lock holder is subjected to a heat treatment after the forming, in particular a coating. Here, the lock holder is preferably subjected to a defined temperature-time sequence, which is optionally coupled with additional chemical or mechanical effects. By a suitable heat treatment can also increase the tensile strength of the lock holder depending on the requirements and material used. In particular, tensile strengths of greater than 30 kN are possible when heat treatments are carried out on formed lock holders.

Um die Eigenschaften der Oberfläche wie Maßgenauigkeit weiter zu verbessern, wird in einer weiteren Ausgestaltung des Verfahrens nach dem Umformvorgang des Schlosshalters eine Oberflächenbehandlung insbesondere ein Flachprägen, Glattprägen oder Maßprägen durchgeführt. Es ist auch möglich, bestimmte Bereiche des Schlosshalters gezielt durch Oberflächenbehandlung nachzubearbeiten. So kann beispielsweise am Bereich, der im eingebauten Zustand des Schlosshalters mit einer Drehfalle eines Schlosses in Eingriff kommt, eine spezielle Oberflächenstruktur in Form von Rillen oder Rändelungen vorgesehen werden, um auf diese Weise störende Geräuschbelastungen wie z.B. Knarzen zu verhindern.In order to further improve the properties of the surface such as dimensional accuracy, in a further embodiment of the method after the forming process of the lock holder, a surface treatment, in particular a flat embossing, smooth embossing or embossing is carried out. It is also possible to rework specific areas of the lock holder specifically by surface treatment. Thus, for example, a special surface structure in the form of grooves or knurls can be provided at the area which engages in the installed state of the lock holder with a catch of a lock, in order to avoid disturbing noise loads such. Prevent creaking.

Um eine hinreichende Stabilität des Schlosshalters zu erzielen, übersteigt die Stärke des Schlossbügels die Stärke der Grundplatte, vorzugsweise mindestens um das Zweifache. Der Schlosshalter ist dann in optimaler Weise an die Beanspruchungen beim Einsatz ausgelegt. Die Stärke der Grundplatte ist bevorzugt wenigstens 1 mm, so zum Beispiel im Durchschnitt 3 mm.In order to achieve a sufficient stability of the lock holder, the strength of the lock bracket exceeds the thickness of the base plate, preferably at least two times. The lock holder is then in optimal Way designed for the stresses during use. The thickness of the base plate is preferably at least 1 mm, for example 3 mm on average.

Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
eine perspektivische Ansicht eines Schlosshalters,
Fig. 2
eine Seitenansicht nebst Aufsicht (a) sowie eine weitere Seitenansicht (b) eines Schlosshalters,
Fig. 3
eine schematische Darstellung von Ausgangsrohlingen (a, b).
In the following the invention will be explained in more detail by means of exemplary embodiments. Show it:
Fig. 1
a perspective view of a lock holder,
Fig. 2
a side view with supervision (a) and a further side view (b) of a lock holder,
Fig. 3
a schematic representation of starting blanks (a, b).

Der in den Fig.1 bis Fig. 2 dargestellte Schlosshalter 1 stellt einen typischen Anwendungsfall für die vorschlagsgemäße Lösung dar. Im Folgenden wird die vorschlagsgemäße Lösung anhand eines Schlosshalters für ein Kraftfahrzeugschloss erläutert. Dies ist jedoch nicht beschränkend zu verstehen.The in the Fig.1 to Fig. 2 illustrated lock holder 1 represents a typical application for the proposed solution. In the following, the proposed solution is explained with reference to a lock holder for a motor vehicle lock. However, this is not restrictive.

Der in Fig. 1 dargestellte Schlosshalter weist eine Grundplatte 2 und einen Schlossbügel 3 auf. Der Schlossbügel 3 weist mittig eine Ausnehmung 5 auf, um im eingebauten Zustand einen Eingriff mit einer Drehfalle eines Schlosses zu ermöglichen. Die Ausnehmung 5 kann bereits beim Umformvorgang des Ausgangsrohlings 11 durch entsprechende Werkzeuge geformt werden oder in einem nachgelagerten Bearbeitungsschritt wie z.B. durch Ausstanzen oder Spanen. Am Schlossbügel 3 sind zwei Schenkel 6 an beiden Seiten der Ausnehmung 5 angeordnet, die mit der Grundplatte 2 in Verbindung stehen. Die Grundplatte 2 weist in diesem Fall zwei Aussparungen 4 in Form von Bohrungen auf, die konusförmig ausgebildet sind und eine Befestigung beispielsweise an eine Karosserie eines Fahrzeugs ermöglichen. Der Bereich zwischen Grundplatte 2 und Schlossbügel 3, also der Grundplatte-Bügel-Übergang 7 ist bevorzugt verstärkt ausgeführt zum Zweck der konstruktiven Versteifung. Im oberen Bereich des Schlossbügels 3 und zwar an den Übergängen zu den jeweiligen Schenkeln 6 sind bevorzugt Bügel-Schenkel-Übergänge 9 mit Übergangsradien vorgesehen, um die Herstellung des Schlosshalters 1 für eine verringerte Werkzeugbeanspruchung geeignet zu optimieren. Die abgerundeten Bügel-Schenkel-Übergänge 9 können besonders vorteilhaft beim Kaltumformen ausgebildet werden. Der Durchmesser der Grundplatte 2 ist insbesondere je nach Ausgestaltung des Ausgangsrohlings 11 nicht größer als 50 mm oder alternativ 60 mm bis 80 mm.The in Fig. 1 Lock holder shown has a base plate 2 and a lock bracket 3. The lock bracket 3 has a recess 5 in the center in order to enable engagement with a rotary latch of a lock when installed. The recess 5 can already be formed during the forming process of the starting blank 11 by appropriate tools or in a downstream processing step such as by punching or machining. On the lock bracket 3, two legs 6 are arranged on both sides of the recess 5, which are in communication with the base plate 2. The base plate 2 has in this case two recesses 4 in the form of holes which are cone-shaped and allow attachment, for example, to a body of a vehicle. The area between base plate 2 and lock bracket 3, so the Baseplate-bracket transition 7 is preferably made reinforced for the purpose of constructive stiffening. In the upper area of the lock bracket 3, specifically at the transitions to the respective legs 6, bracket-leg transitions 9 with transition radii are preferably provided, in order to optimize the manufacture of the lock bracket 1 in a suitable manner for a reduced tool load. The rounded bracket-leg transitions 9 can be formed particularly advantageous during cold forming. The diameter of the base plate 2 is in particular, depending on the configuration of the starting blank 11, not greater than 50 mm or alternatively 60 mm to 80 mm.

Wie aus Fig. 2 a) ersichtlich, sind die Aussparungen 4 insbesondere randseitig auf gegenüberliegenden Seiten der Grundplatte 2 angeordnet. In diesem Fall weisen die Aussparungen einen Abstand von 30 mm zueinander auf. Die Stärke 13 der Grundplatte 2 ist bevorzugt wenigstens 3 mm, bevorzugt 5 mm, noch bevorzugter 4 mm. Um eine konstruktiv stabile Verbindung mit dem Schlossbügel 3 zu erhalten, ist der Grundplatte-Bügel-Übergang 7 verstärkt ausgeführt, so dass sich die Stärke der Grundplatte 2 in diesem Bereich erhöht. Die Stärke 14 des Schlossbügels 3 ist bevorzugt größer als die Stärke 13 der Grundplatte 2, vorzugsweise um mehr als das Zweifache, um eine beanspruchungsgerechte Kraftaufnahme durch den Schlossbügel 3 sicherzustellen.How out Fig. 2 a) can be seen, the recesses 4 are arranged in particular on the edge side on opposite sides of the base plate 2. In this case, the recesses have a distance of 30 mm from each other. The thickness 13 of the base plate 2 is preferably at least 3 mm, preferably 5 mm, more preferably 4 mm. In order to obtain a structurally stable connection with the lock bracket 3, the base plate bracket transition 7 is made reinforced, so that increases the strength of the base plate 2 in this area. The thickness 14 of the lock bracket 3 is preferably greater than the thickness 13 of the base plate 2, preferably more than twice, to ensure a stress-based power consumption by the lock bracket 3.

Fig. 2 b) verdeutlicht, wie sich die Stärke 13 der Grundplatte 2 im Grundplatte-Bügel-Übergang 7 erhöht. Die Höhe 10 des Schlossbügels 3 ist bevorzugt kleiner als der Durchmesser 8 der Grundplatte. Insbesondere ist die Höhe 10 des Schlossbügels nicht größer als 50 mm, so zum Beispiel 34 mm. Fig. 2 b) illustrates how the strength increases 13 of the base plate 2 in the base plate bracket transition 7. The height 10 of the lock bracket 3 is preferably smaller than the diameter 8 of the base plate. In particular, the height 10 of the lock bracket is not greater than 50 mm, such as 34 mm.

Besondere Bedeutung kommt vorliegend dem Herstellungsverfahren des in den Fig. 1 bis Fig. 2 dargestellten Schlosshalters 1 zu. Nach diesem Herstellungsverfahren ist es so, dass ein Ausgangsrohling 11 im Wesentlichen block- oder zylinderförmig ausgebildet ist, und zwar derart, dass mit der Kaltumformung eine Kaltverfestigung erfolgt.Of particular importance in the present case is the production process of the Fig. 1 to Fig. 2 shown lock holder 1 to. According to this manufacturing method, it is such that a starting blank 11 is formed substantially block-shaped or cylindrical, in such a way that takes place with the cold working strain hardening.

Bei dem Ausgangsrohling 11 handelt es sich bevorzugt um einen Draht bzw. Profildraht, der insbesondere kaltgestaucht oder kaltgepresst wurde. Der Ausgangsrohling weist bevorzugt ein quadratisches, rechteckiges oder rundes Profil auf, wobei die Aufzählung nicht beschränkt gemeint ist, sondern beliebige dem Herstellungsvorgang entsprechende Formen aufweisen kann, wie z. B. ovale Profile. Durch die geeignet dimensionierte Formgebung des Ausgangsrohlings 11 wird gezielt eine Kaltumformung bewirkt, die mit einer entsprechenden Erhöhung der Festigkeit im Schlosshalter 1 verbunden ist, ohne dass eine ungewünschte hohe Werkzeugbeanspruchung auftritt.The starting blank 11 is preferably a wire or profile wire, which has been cold-pressed or cold-pressed in particular. The starting blank preferably has a square, rectangular or round profile, the list not being restricted, but may have any shapes corresponding to the manufacturing process, such as. B. oval profiles. By suitably dimensioned shaping of the starting blank 11, a cold forming is selectively effected, which is connected to a corresponding increase in the strength in the lock holder 1, without an undesirable high tool stress occurs.

Vor diesem Hintergrund verdeutlicht Fig. 3 a) einen im Wesentlichen blockförmigen Ausgangsrohling. Die Breite 12 des Ausgangsrohlings 11 ist bevorzugt 15 mm bis 35 mm. Die Länge 13ist bevorzugt 30 mm bis 45 mm. Die Höhe 14 ist bevorzugt 25 mm bis 45 mm. Die Querschnittsfläche bzw. die Profilfläche des Ausgangsrohlings 11 ergibt sich aus Breite 12 und Länge 13 des Ausgangsrohlings 11. Der daraus umgeformte Schlosshalter 1 weist dann bevorzugt eine Grundplatte 2 mit einem Durchmesser von nicht mehr als 50 mm auf.Against this background clarified Fig. 3 a) a substantially block-shaped starting blank. The width 12 of the starting blank 11 is preferably 15 mm to 35 mm. The length 13 is preferably 30 mm to 45 mm. The height 14 is preferably 25 mm to 45 mm. The cross-sectional area or the profile surface of the starting blank 11 results from width 12 and length 13 of the starting blank 11. The lock holder 1 formed therefrom then preferably has a base plate 2 with a diameter of not more than 50 mm.

Fig. 3 b) verdeutlicht einen im Wesentlichen zylinderförmigen Ausgangsrohling 11. Der Durchmesser 15 des Ausgangsrohlings 11 ist bevorzugt 15 mm bis 35 mm. Die Querschnittsfläche bzw. die Profilfläche des Ausgangsrohlings 11 wird durch den Durchmesser 15 festgelegt. Die Höhe 14 ist bevorzugt 30 mm bis 60 mm. Der umgeformte Schlosshalter 1 weist dann bevorzugt einen Durchmesser von 60 mm bis 80 mm, so zum Beispiel 70 mm auf. Fig. 3 b) illustrates a substantially cylindrical starting blank 11. The diameter 15 of the starting blank 11 is preferably 15 mm to 35 mm. The cross-sectional area or the profile surface of the starting blank 11 is determined by the diameter 15. The height 14 is preferably 30 mm to 60 mm. The formed lock holder 1 then preferably has a diameter of 60 mm to 80 mm, such as 70 mm.

Es hat sich gezeigt, dass auf diese Weise hergestellte Schlosshalter 1 den erforderlichen Zugbeanspruchungen standhalten. Die Schlosshalter 1 halten so einer Zugbeanspruchung von 22 kN stand, ohne dass die Schlosshalter 1 einer zusätzlichen Wärmebehandlung unterzogen wurden. Darüber hinaus liegen die Festigkeitswerte nach dem Umformvorgang bei ca. 740 MPa bis 835 MPa.It has been found that lock retainers 1 produced in this way can withstand the required tensile stresses. The lock holder 1 thus withstand a tensile stress of 22 kN, without the lock holder 1 were subjected to an additional heat treatment. In addition, the strength values after the forming process are approximately 740 MPa to 835 MPa.

Besonders gute Ergebnisse lassen sich ferner durch eine Wärmebehandlung des Schlosshalters beispielsweise durch Vergüten erzielen. Die auf diese Weise vergüteten Schlosshalter 1 halten einer Zugbeanspruchung von wenigstens 30 kN stand. Die Festigkeitswerte liegen dann bei ca. 920 MPa bis 990 MPa. Durch geeignete Wärmebehandlung insbesondere Vergüten werden so hergestellte Schlosshalter 1 folglich besonders hohen Anforderungen gerecht.Particularly good results can be further achieved by heat treatment of the lock holder, for example by tempering. The lock holders 1 tempered in this way withstand a tensile load of at least 30 kN. The strength values are then about 920 MPa to 990 MPa. By suitable heat treatment, in particular tempering lock holder 1 thus produced are therefore particularly high requirements.

Bezugszeichen:

1
Schlosshalter
2
Grundplatte
3
Schlossbügel
4
Aussparung
5
Ausnehmung
6
Schenkel
7
Grundplatte-Bügel-Übergang
8
Durchmesser von 2
9
Bügel-Schenkel-Übergang
10
Höhe von 3
11
Ausgangsrohling
12
Breite von 11
13
Länge von 11
14
Höhe von 11
15
Durchmesser von 11
16
Stärke von 2
17
Stärke von 3
Reference numerals:
1
Castle holder
2
baseplate
3
shackle
4
recess
5
recess
6
leg
7
Base plate-bracket junction
8th
Diameter of 2
9
Ironing-leg transition
10
Height of 3
11
starting blank
12
Width of 11
13
Length of 11
14
Height of 11
15
Diameter of 11
16
Strength of 2
17
Strength of 3

Claims (11)

  1. A method for producing a one-piece locking bolt (1) for a motor vehicle, wherein the locking bolt (1) comprises a base plate (2) and a U-lock-member (3), characterized in that the locking bolt (1) is formed from a metallic, substantially block or cylinder shaped starting blank (11) by means of cold heading in such a way that cold work hardening of the locking bolt (1) takes place.
  2. The method according to the preceding claim, wherein a in particular cold headed or cold compressed wire or profile wire is used, preferably with a cross section area or profile are of 450 mm to 1125 mm2.
  3. The method according to one of the preceding claims, wherein the starting blank (11) has a width (12) of 15 mm to 25 mm and/or a length (13) of 30 mm to 45 mm, or the starting blank (11) has a diameter (15) of 15 mm to 35 mm.
  4. The method according to one of the preceding claims, wherein the starting blank (11) has a height of at least 25 mm, further preferred of 25 mm to 45 mm.
  5. The method according to one of the preceding claims, wherein the forming process is carried out in several steps or stages, preferably not more than three steps or stages.
  6. The method according to one of the preceding claims, wherein subsequent to the forming process, a heating treatment is carried out, in particular tempering.
  7. The method according to one of the preceding claims, wherein the main change with respect to the shape during the forming process occurs vertically to the cross section area or profile area of the starting blank (11).
  8. The method according to one of the preceding claims, wherein quenched and tempered steel, preferably boron alloyed steel, is used as material for the starting blank (11).
  9. The method according to one of the preceding claims, wherein quenched and tempered steel is used as material for the starting blank (11), namely 38Cr2, 46Cr2, 34Cr4 34CrS4, 37Cr4, 37CrS4, 41 Cr4, 41CrS4, 25CrMo4, 25CrMoS4, 34CrMo4, 34CrMoS4, 42CrMo4, 42CrMoS4, 50CrMo4, 34CrNiMo6, 30CrNiMo8, 35NiCr6, 36NiCrMol6, 39NiCrMo3, 30NiCrMol 6-6, 51CrV4, more preferably 20MnB5, 30MnB5, 27MnCrB5-2, 33MnCrB5-2, 39MnCrB6-2, or a cold headed steel, namely Cq 22 (material number: 1.1152), C35EC, C35 C, C45EC, C45RX, 37Mo2, 38Cr2, 46Cr2, 34Cr4, 37Cr4, 41Cr4, 41 CrS4, 25CrMo4, 25CrMoS4, 34CrMo4, 37CrMo4, 42CrMo4, 42CrMoS4, 34CrNiMo6, 41NiCrMo7-3-2, further preferred 17B2, 23B2, 28B2, 33B2, 38B2, 17MnB4, 20MnB4, 23MnB4, 27MnB4, 30MnB4, 36MnB4, 37MnB5, 30MoB1, 32CrB4, 36CrB4, 31CrMoB2-1.
  10. A locking bolt for a motor vehicle lock, produced according to one of the preceding claims, wherein the thickness (12) of the base plate is preferably 3 mm, further preferred 3 to 5 mm.
  11. The locking bolt of one of the preceding claims, wherein the thickness (17) of the U-lock-member exceeds the thickness (13) of the base plate, preferably by at least twice.
EP13823920.7A 2012-09-08 2013-09-05 Method for producing a one-piece lock striker Active EP2893107B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012017841.7A DE102012017841A1 (en) 2012-09-08 2012-09-08 Method for producing a one-piece lock holder
PCT/DE2013/000514 WO2014036990A2 (en) 2012-09-08 2013-09-05 Method for producing a one-piece lock striker

Publications (2)

Publication Number Publication Date
EP2893107A2 EP2893107A2 (en) 2015-07-15
EP2893107B1 true EP2893107B1 (en) 2018-06-20

Family

ID=49999645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13823920.7A Active EP2893107B1 (en) 2012-09-08 2013-09-05 Method for producing a one-piece lock striker

Country Status (12)

Country Link
US (1) US20150218849A1 (en)
EP (1) EP2893107B1 (en)
JP (1) JP6229189B2 (en)
KR (1) KR20150053945A (en)
CN (1) CN104769199A (en)
BR (1) BR112015005070A2 (en)
CA (1) CA2886806A1 (en)
DE (1) DE102012017841A1 (en)
IN (1) IN2015DN02518A (en)
MX (1) MX2015002882A (en)
RU (1) RU2015107865A (en)
WO (1) WO2014036990A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014006857A1 (en) * 2014-05-13 2015-11-19 Kiekert Aktiengesellschaft Lock holder for a motor vehicle door lock
DE102014007220A1 (en) * 2014-05-19 2015-11-19 Kiekert Ag Lock holder for a motor vehicle door lock
KR20180018405A (en) 2016-08-09 2018-02-21 주식회사 시선바이오머티리얼스 Peptide Nucleic Acid Complex with Increased Cell Permeability and pharmaceutical composition comprising the same
CN106670665A (en) * 2016-11-24 2017-05-17 南京航空航天大学 Laser-MIG composite multilayer multi-pass welding method used for multifunctional stabilization rod
CZ2017110A3 (en) * 2017-02-28 2018-05-02 Edscha Automotive Kamenice S.R.O. A method of manufacturing hinge parts for the door hinge
CN108049733A (en) * 2017-12-30 2018-05-18 湖北航宇精工科技有限公司 A kind of gear buckle assembly and manufacture craft
DE102022103163A1 (en) * 2022-02-10 2023-08-10 Kiekert Aktiengesellschaft One-piece lock holder for a motor vehicle locking device

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4944867B1 (en) * 1969-09-16 1974-11-30
JPS57152344U (en) * 1981-03-14 1982-09-24
JPS62142042A (en) * 1985-12-16 1987-06-25 Nissan Motor Co Ltd Production of shaft component
DE9307314U1 (en) * 1993-05-13 1994-09-22 Ed. Scharwächter GmbH + Co KG, 42855 Remscheid Latch and joint system
US6053023A (en) * 1998-07-02 2000-04-25 Flowform, Inc. Method of cold forging a workpiece having a non-circular opening
JP3443528B2 (en) * 1998-08-28 2003-09-02 日本高周波鋼業株式会社 Method for manufacturing stepped and flanged annular members
KR100464962B1 (en) * 2001-09-14 2005-01-05 삼화강봉주식회사 Quenched & tempered steel wire with superior characteristics of cold forging
DE102007041479A1 (en) 2007-08-31 2009-03-05 Kiekert Ag One-piece lock holder
JP4748424B2 (en) * 2007-09-07 2011-08-17 株式会社ミナミダ striker
DE102008053839B4 (en) * 2008-10-30 2014-03-13 Siemens Aktiengesellschaft Method for producing a housing component
DE102010011716A1 (en) * 2009-12-24 2011-06-30 Kiekert AG, 42579 Method for producing lock holders and lock holders
DE102010024508A1 (en) * 2010-06-21 2011-12-22 Kiekert Ag Lock holder for lock in e.g. motor car, has lock bracket with bolts connected with lock holder plate, and locking bolts including deferred-rotation contact zone that is characterized as constriction in close bolt cross-section
DE102010024510A1 (en) 2010-06-21 2011-12-22 Kiekert Ag Method for manufacturing holder of e.g. motor car lock, has ingot integrally formed into holder with plate, lock clamp and holder holes by subsequent shaping between forging hammers under compressive conditions
DE102010024536A1 (en) * 2010-06-21 2011-12-22 Kiekert Ag Lock holder for motor vehicle- or building lock, has lock holder plate and lock holder bracket which has cotter pin, parallel bolts, connecting bolts and lock holder bracket opening
DE102010024511B4 (en) * 2010-06-21 2024-02-08 Kiekert Aktiengesellschaft Method for producing lock holders by improved cold extrusion and lock holders
JP5633313B2 (en) * 2010-11-04 2014-12-03 アイシン精機株式会社 Vehicle door fixing device, movable wedge device thereof, and method of assembling the same
DE102010054369A1 (en) 2010-12-13 2012-06-14 Kiekert Ag Method for producing lock holders with S-punch and lock holder
DE102010054368A1 (en) * 2010-12-13 2012-06-14 Kiekert Ag Method for manufacturing lock holder for motor car lock, involves arranging projection part to bracket leg parts that are fixed parallel to plate, and bending projection part to form crash flange after forming semi-finished material
JP5376260B2 (en) * 2011-01-31 2013-12-25 株式会社ミナミダ Striker manufacturing method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Einfluss des Materialflusses auf die Verdichtung beim Sinterschmieden", 22 October 2015 (2015-10-22), Retrieved from the Internet <URL:https://www.umformtechnik.net/binary_data/3145352_sinterschmieden-vahed.pdf> [retrieved on 20151022] *

Also Published As

Publication number Publication date
KR20150053945A (en) 2015-05-19
WO2014036990A3 (en) 2014-12-04
CA2886806A1 (en) 2014-03-13
MX2015002882A (en) 2015-11-13
CN104769199A (en) 2015-07-08
US20150218849A1 (en) 2015-08-06
JP6229189B2 (en) 2017-11-15
RU2015107865A (en) 2016-09-27
WO2014036990A2 (en) 2014-03-13
EP2893107A2 (en) 2015-07-15
DE102012017841A1 (en) 2014-03-13
JP2015529159A (en) 2015-10-05
IN2015DN02518A (en) 2015-09-11
BR112015005070A2 (en) 2017-07-04

Similar Documents

Publication Publication Date Title
EP2893107B1 (en) Method for producing a one-piece lock striker
EP2516776B1 (en) Method for producing lock retainers and lock retainer
EP2155917B1 (en) Process for producing a locally hardened profile component
EP3265365B1 (en) Press-hardened shaped metal sheet having different sheet thicknesses and strengths
EP2607579B1 (en) One-piece lock striker
DE102008044523B4 (en) Warmumformprofile
EP2862995B1 (en) Method for producing a rear panel of a motor vehicle lock and lock comprising such a rear panel
DE102010011368A1 (en) Process for the production of press-hardened molded components
DE102005041741B4 (en) Method for producing a press-hardened component
EP2415882B1 (en) Method for producing a shaped metal sheet from a rolled, non-hardenable aluminium alloy
DE102013019634A1 (en) Production of a sheet metal part with local electromagnetic forming of the sheet material for producing a sheet metal molding edge
EP2415895A1 (en) Metal moulded part for motor vehicle
DE102014006857A1 (en) Lock holder for a motor vehicle door lock
DE102010024510A1 (en) Method for manufacturing holder of e.g. motor car lock, has ingot integrally formed into holder with plate, lock clamp and holder holes by subsequent shaping between forging hammers under compressive conditions
EP2987878A2 (en) Method for manufacturing a motor vehicle part made from a hardenable aluminium alloy
EP3088092A1 (en) Hot forming and press hardening tool and method for operating the hot forming and press hardening tool
DE102007033369A1 (en) Production of sheet metal used in the production of a vehicle lock comprises inserting an equalizing notch in a sheet metal part so that unwanted drawing of the sheet metal part during processing is avoided
DE102019104222A1 (en) Stamped component with improved ductility
DE102007040597A1 (en) Component i.e. sash fastener, manufacturing method for motor vehicle door, involves cooling metallic sleeve in die tool such that sleeve takes martensitic microstructure, and taking out sleeve from die tool as finished sash fastener
EP3585531B1 (en) Method for producing a component by further forming of a preformed contour
EP3828368B1 (en) Method for fabrication of a vehicle lock
WO2017174425A1 (en) Method and device for forming a semi-finished product
EP3296104A1 (en) Bodywork component with reduced cracking and a method for producing same
DE102014114441A1 (en) Fine cutting of the bearings
WO2019137910A1 (en) Method for producing a steel sheet component

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150319

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

INTG Intention to grant announced

Effective date: 20180228

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1010715

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180715

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013010444

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180920

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180920

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180921

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181020

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013010444

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180920

26N No opposition filed

Effective date: 20190321

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180930

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180930

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180920

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1010715

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180905

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180620

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130905

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180620

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230529

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20230824

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230918

Year of fee payment: 11

Ref country code: DE

Payment date: 20230919

Year of fee payment: 11