EP2862995B1 - Procédé de fabrication d'une tôle arrière d'un verrou de véhicule automobile et verrou comprenant une telle tôle - Google Patents

Procédé de fabrication d'une tôle arrière d'un verrou de véhicule automobile et verrou comprenant une telle tôle Download PDF

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Publication number
EP2862995B1
EP2862995B1 EP14189030.1A EP14189030A EP2862995B1 EP 2862995 B1 EP2862995 B1 EP 2862995B1 EP 14189030 A EP14189030 A EP 14189030A EP 2862995 B1 EP2862995 B1 EP 2862995B1
Authority
EP
European Patent Office
Prior art keywords
anchor
hole
peripheral region
produced
plate
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.)
Not-in-force
Application number
EP14189030.1A
Other languages
German (de)
English (en)
Other versions
EP2862995A1 (fr
Inventor
Jörg Reinert
Tatjana Schmidt
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.)
Brose Schliesssysteme GmbH and Co KG
Original Assignee
Brose Schliesssysteme GmbH and Co KG
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 Brose Schliesssysteme GmbH and Co KG filed Critical Brose Schliesssysteme GmbH and Co KG
Publication of EP2862995A1 publication Critical patent/EP2862995A1/fr
Application granted granted Critical
Publication of EP2862995B1 publication Critical patent/EP2862995B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • 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
    • B21D49/00—Sheathing or stiffening objects
    • 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
    • E05B79/02—Mounting of vehicle locks or parts thereof
    • E05B79/08—Mounting of individual lock elements in the lock, e.g. levers
    • 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
    • E05B85/02—Lock casings
    • 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
    • E05B15/16—Use of special materials for parts of locks
    • E05B2015/1685—Sheet materials

Definitions

  • the present invention relates to a method for producing a rear plate of a motor vehicle lock according to the preamble of claim 1 and a motor vehicle lock with a rear plate, which has been produced by an above method, according to the preamble of claim 8.
  • the motor vehicle lock in question applies to all Types of closure elements of a motor vehicle. These include in particular side doors, rear doors, tailgates, trunk lids or hoods. In principle, these closure elements can also be designed in the manner of sliding doors. It has the usual closing elements latch and pawl, which are supported by a rear plate.
  • the latch of the motor vehicle lock in question can be brought into a closed position in which it is in holding engagement with a closing wedge or the like.
  • the latch can also be brought into an open position in which it releases the latch wedge or the like.
  • the pawl serves to lock the latch in the respective closed position.
  • To release the latch bolt, the pawl can be lifted into an excavated position.
  • the latch and the pawl are pivotally mounted on the rear panel of the motor vehicle lock. Regularly appropriate bearing domes are provided on the rear panel for this purpose. Correspondingly, high forces act on the bearing dome via the latch and the pawl, so that the mechanical stability of the back plate is of particular importance.
  • the back plate is brought by cold forming, for example by bending or stamping, in the desired shape.
  • the entire sheet metal blank is designed in relatively high sheet thickness. This is associated with high production costs, in particular material costs.
  • the invention is based on the problem, the known method for producing a rear plate of a motor vehicle lock in such a way and further develop that the manufacturing costs are reduced with unchanged high mechanical stability.
  • the rear plate blank is cold-formed in such a way that at least one thickened edge region with locally increased sheet thickness is produced by displacement of material from at least one storage region of the rear plate blank.
  • the sheet thickness of the back plate blank can be reduced to a minimum required sheet thickness, the areas are generated with locally increased sheet thickness by material thickening. Due to the fact that the back plate blank is based on a sheet with a relatively small sheet thickness, the production costs, in particular the material costs, can be significantly reduced.
  • Another advantageous effect of the proposed solution is the fact that with the proposed material thickening always a work hardening of the respective areas is accompanied, so that the mechanical stability of the proposed rear panel with a suitable design may even be higher than in a rear panel produced by the known method.
  • the rear plate blank has an increased output surface, so that correspondingly additional material for the material thickening is available.
  • it is in the storage area is shifted from the material for the material thickening, is such an area, which is anyway free of material in the later, finished rear panel.
  • the storage area in the finished rear bend is a hole into which the respective bearing dome for lock catch and pawl is inserted.
  • the thickened edge area runs in a preferred variant according to claim 3 in a circle around the storage area.
  • a pointed forming punch is driven into the storage area of the rear plate blank as part of the material thickening, which already prepares the production of the bearing dome for the o. The like hole required.
  • the particular circular, locally thickened edge region can form a bearing surface for the mounting of a closing element.
  • the surface of the thickened edge region is converted by cold forming into a defined pressing surface. On a face milling o. The like.
  • the thickened edge region can be dispensed with.
  • Essential for the proposed method for producing the back plate 1 is the process step resulting from the transition from Fig. 2 on Fig. 3 results.
  • the sheet metal blank 1a is cold-formed in such a way that at least one thickened edge region 6 with locally increased sheet thickness D is produced by displacement of material from at least one stock area 5 of the sheet metal blank 1a.
  • the higher sheet thickness D compared to the smaller sheet thickness d of the surrounding area results, for example, from the illustration in FIG Fig. 5 ,
  • the rear panel 1 is assigned a total of two storage areas 5, 5 ', each with locally thickened edge areas 6, 6'.
  • Fig. 1 right storage area 5 Only the in Fig. 1 right storage area 5 explained. All explanations apply to the Fig. 1 left storage area 5 'accordingly.
  • Fig. 1 and 6 it can be a synopsis of Fig. 1 and 6 infer that the storage area 5 of the finished rear panel 1 is free of material. This means, as will be explained, that the material in the storage area 5 of the rear plate blank 1a can be used for the material thickening according to the proposal, without having to provide additional material, for example by providing an enlarged sheet metal blank 1a.
  • FIG. 1 . 5 and 6 A synopsis of Fig. 1 . 5 and 6 shows that the thickened edge region 6 extends along the storage area 5, ie in the narrower sense forms the edge of the storage area 5. Since the thickened edge region 6 is assigned in a manner yet to be explained to the bearing of the latch 3 or pawl 4, it is preferably such that the thickened edge region 6, here and preferably in a circle, runs around the reservoir region 5.
  • Fig. 2 on Fig. 3 shows that the thickened edge region 6 is preferably produced by cold forming when driving a pointed, an upper tool 14a associated forming punch 7 in the storage area 5 of the sheet metal blank 1a.
  • the upper tool 14a is associated with a lower tool 15a, which is designed substantially flat except for one of the tip of the forming punch 7 corresponding shape.
  • Fig. 3 shows, that This can already prepare the production of a hole in the storage area 5.
  • Fig. 5 shows a process step, in any case, the process step resulting from the transition of Fig. 2 on Fig. 3 results, is downstream.
  • a hole 8 is produced in the storage area 5 of the rear sheet blank 1a after the production of the thickened edge area 6. It is conceivable here that the hole 8 is drilled or milled. In a particularly preferred embodiment, however, the hole 8 is produced by perforation, that is, by a cutting step. Accordingly, here a punch 9 is driven into the sheet metal blank 1a, which is part of an upper tool 14c.
  • the upper tool 14c is associated with a provided with a circular shape lower tool 15c.
  • the hole edges of the hole 8 are chamfered by cold forming on one side or two sides.
  • the chamfering can be produced by corresponding chamfering tools 10, 11, which can also be part of the above-mentioned pointed forming punch 7.
  • FIG. 4 shown upper tool 14b is further configured such that prior to the above punching the surface of the thickened edge portion 6 is formed by cold forming when driving a further punch 16 in a defined, in particular flat, pressing surface 17.
  • the thickened edge region 6 is flattened by means of the further forming punch 16.
  • the pressing surface 17 is best shown in FIG Fig. 5 refer to.
  • the defined pressing surface 17 is a bearing surface with a high bearing component, as will be explained below. Accordingly, the defined pressing surface 17 in a particularly preferred embodiment is flat or conical.
  • a bearing dome 18 is inserted into the hole 8, which is here and preferably a bearing dome 18, which is associated with one of the closing elements latch 3 and pawl 4.
  • a compression and / or riveting of the bearing dome 18 is preferably provided.
  • Other mounting options for the bearing dome 18 are conceivable.
  • At least one closing element 3, 4 is mounted on an associated bearing dome 18 which is fixed in a hole 8 which is surrounded by a thickened edge region 6.
  • both closing elements latch 3 and pawl 4 are mounted on a respective bearing dome 18, 18 ', the two bearing domes 18, 18' being respectively fixed in a hole 8 surrounded by a thickened edge area 6, 6 '.
  • the surface of the respective edge region 6, 6 ' is configured as a pressing surface 17, 17' and is plane-parallel to a surface 4a, here a bearing surface 4a, the associated closing element 3, 4 aligned.
  • An abrading machining of the pressing surfaces 17, 17 ' can be dispensed with by the method according to the present invention in an advantageous manner.
  • a pressing surface 17, 17 'produced by pressing can readily be produced with a carrying proportion of more than 70%, in particular more than 80%, so that such pressing surfaces are particularly suitable as sliding bearing surfaces.
  • the rear plate 1 of the proposed motor vehicle lock 2 an inlet mouth 19 for the closing wedge 2a o.
  • the like. Has.
  • the proposed method can also be applied to the edge of the inlet mouth 19.
  • a proposed material addition would effect a corresponding stabilization for engagement with the striker 2a or the like through the resulting geometry, that is, through the locally increased sheet thickness, and through the resulting strain hardening.
  • the proposed method can also be used in other areas of the back plate 1, which require a high mechanical stability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Superstructure Of Vehicle (AREA)
  • Lock And Its Accessories (AREA)

Claims (10)

  1. Procédé de fabrication d'une tôle arrière (1) d'un verrou de véhicule automobile (2) à partir d'une ébauche de tôle arrière (1a), la tôle arrière finie (1), dans l'état monté, portant les éléments du verrou constitués par le pêne (3) et le cliquet d'arrêt (4),
    caractérisé en ce que
    l'ébauche de tôle arrière (1a) est façonnée à froid de telle sorte que par déplacement du matériau depuis au moins une région de réserve (5, 5') de l'ébauche de tôle arrière (1a), au moins une région de bord épaissie (6, 6') soit produite avec une épaisseur de tôle accrue localement (D), et en ce que dans la région de réserve (5, 5') de l'ébauche de tôle arrière (1a), un trou (8, 8') soit produit après la production de la région de bord épaissie (6, 6'), le trou (8, 8) étant produit par perforation.
  2. Procédé selon la revendication 1, caractérisé en ce que la région de réserve (5, 5') de la tôle arrière finie (1) est exempte de matériau.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la région de bord épaissie (6, 6') s'étend le long de la région de réserve (5, 5'), de préférence en ce que la région de bord épaissie (6, 6') s'étend sur la périphérie notamment sous forme circulaire autour de la région de réserve (5, 5').
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la région de bord épaissie (6, 6') est produite par façonnage à froid lors de l'enfoncement d'un poinçon de façonnage pointu (7) dans la région de réserve (5, 5') de l'ébauche de tôle arrière (1a).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les bords du trou (8, 8') sont biseautés d'un côté ou des deux côtés par façonnage à froid.
  6. Procédé selon la revendication 1, caractérisé en ce que la surface de la région de bord épaissie est façonnée par façonnage à froid dans une surface de pressage définie.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que dans le trou (8, 8') est inséré et fixé un manchon de palier (18, 18'), en particulier un manchon de palier (18, 18') pour l'un des éléments de verrou (3, 4), et de préférence en ce que le manchon de palier (18, 18') est pressé dans le trou (8, 8') en vue de sa fixation.
  8. Verrou de véhicule automobile comprenant les éléments de verrou constitués par un pêne (3) et un cliquet d'arrêt (4), une tôle arrière (1) étant prévue, laquelle porte les éléments de verrou constitués par le pêne (3) et le cliquet d'arrêt (4),
    caractérisé en ce que
    la tôle arrière (1) est fabriquée selon un procédé selon l'une quelconque des revendications précédentes.
  9. Verrou de véhicule automobile selon la revendication 8, caractérisé en ce qu'au moins un élément de verrou (3, 4) est supporté sur un manchon de palier (18, 18'), lequel est fixé dans un trou (8, 9') entouré par une région de bord épaissie (6, 6').
  10. Verrou de véhicule automobile selon la revendication 8 ou 9, caractérisé en ce que la surface de la région de bord (6, 6') est une surface de palier pour l'élément de verrou associé (3, 4) et est orientée avec son plan parallèle à une surface de l'élément de verrou associé (3, 4).
EP14189030.1A 2013-10-15 2014-10-15 Procédé de fabrication d'une tôle arrière d'un verrou de véhicule automobile et verrou comprenant une telle tôle Not-in-force EP2862995B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310111395 DE102013111395A1 (de) 2013-10-15 2013-10-15 Verfahren zur Herstellung eines Rückblechs eines Kraftfahrzeugschlosses

Publications (2)

Publication Number Publication Date
EP2862995A1 EP2862995A1 (fr) 2015-04-22
EP2862995B1 true EP2862995B1 (fr) 2018-02-21

Family

ID=51703052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14189030.1A Not-in-force EP2862995B1 (fr) 2013-10-15 2014-10-15 Procédé de fabrication d'une tôle arrière d'un verrou de véhicule automobile et verrou comprenant une telle tôle

Country Status (2)

Country Link
EP (1) EP2862995B1 (fr)
DE (1) DE102013111395A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014011973A1 (de) * 2014-08-15 2016-02-18 Kiekert Aktiengesellschaft Verfahren zur Herstellung eines Kraftfahrzeugtürschlosses
DE102014114260B4 (de) * 2014-10-01 2022-12-01 Kiekert Aktiengesellschaft Kraftfahrzeugtürschloss
US10961752B2 (en) * 2017-09-20 2021-03-30 Kiekert Ag Motor vehicle latch
CN109513817B (zh) * 2018-12-19 2021-06-01 浙江罗尔科精密工业有限公司 一种车座椅止动爪加工工艺
US11377879B2 (en) 2019-12-19 2022-07-05 Kiekert Ag Motor vehicle latch
DE102020100146A1 (de) 2020-01-07 2021-07-08 Kiekert Aktiengesellschaft Kraftfahrzeug-Schloss
DE102021127781A1 (de) 2021-10-26 2023-04-27 Brose Schließsysteme GmbH & Co. Kommanditgesellschaft Kraftfahrzeugschloss

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Publication number Priority date Publication date Assignee Title
DE2343432C3 (de) * 1973-08-29 1976-05-26 Boge Gmbh Vorrichtung zur spanlosen herstellung einer kleinen oeffnung in einer verhaeltnismaessig dicken metallenen blech- oder rohrwand
DE2813952A1 (de) * 1978-03-31 1979-10-04 Thermal Waerme Kaelte Klima Rohrboden aus metall, anwendungen und verwendung desselben sowie verfahren und vorrichtung zu seiner herstellung
JPH1131455A (ja) * 1997-07-11 1999-02-02 Sony Corp プレス加工方法
US6409235B1 (en) * 1999-12-28 2002-06-25 Kason Industries, Inc. Panel fastener
DE202006009003U1 (de) * 2006-06-06 2007-10-25 BROSE SCHLIEßSYSTEME GMBH & CO. KG Kraftfahrzeugschloß
DE102007033369A1 (de) * 2006-09-14 2008-04-10 BROSE SCHLIEßSYSTEME GMBH & CO. KG Verfahren zur Blechbearbeitung und Blechteil für ein Kraftfahrzeug
JP5012365B2 (ja) * 2007-09-26 2012-08-29 アイシン・エィ・ダブリュ株式会社 面取り貫通孔を有する部材及びその製造方法
DE102009037663A1 (de) * 2009-07-03 2011-01-05 Kiekert Ag Verfahren zum Herstellen von vorzugsweise Kraftfahrzeugschloss-Bauteilen

Non-Patent Citations (1)

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Publication number Publication date
EP2862995A1 (fr) 2015-04-22
DE102013111395A1 (de) 2015-04-16

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