EP0637517B1 - Verfahren zum Markieren vom Autofenstern auf der Stelle - Google Patents

Verfahren zum Markieren vom Autofenstern auf der Stelle Download PDF

Info

Publication number
EP0637517B1
EP0637517B1 EP94401786A EP94401786A EP0637517B1 EP 0637517 B1 EP0637517 B1 EP 0637517B1 EP 94401786 A EP94401786 A EP 94401786A EP 94401786 A EP94401786 A EP 94401786A EP 0637517 B1 EP0637517 B1 EP 0637517B1
Authority
EP
European Patent Office
Prior art keywords
glazing
laser beam
enamel
band
marking
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.)
Expired - Lifetime
Application number
EP94401786A
Other languages
English (en)
French (fr)
Other versions
EP0637517A1 (de
Inventor
Walter Goerenz
Wolfgang Dr. Schaefer
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.)
Saint Gobain Vitrage SA
Original Assignee
Saint Gobain Vitrage SA
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 Saint Gobain Vitrage SA filed Critical Saint Gobain Vitrage SA
Publication of EP0637517A1 publication Critical patent/EP0637517A1/de
Application granted granted Critical
Publication of EP0637517B1 publication Critical patent/EP0637517B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/22—Removing surface-material, e.g. by engraving, by etching
    • B44C1/228—Removing surface-material, e.g. by engraving, by etching by laser radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B7/00—Machines, apparatus or hand tools for branding, e.g. using radiant energy such as laser beams
    • B44B7/002—Machines, apparatus or hand tools for branding, e.g. using radiant energy such as laser beams in layered material

Definitions

  • the present invention relates to a method for writing on or marking automobile glazing by means of a laser beam.
  • an ultraviolet laser beam can be used for which the intermediate layer of plastic material is opaque.
  • a pulsed laser beam is preferably used.
  • the known methods serve to mark laminated glazings in which the more absorbent layer is arranged, in the form of a polymer layer, between two sheets of glass.
  • an additional radiation absorbing layer may be provided, made of an organic material, for example of a light color.
  • the known methods are provided only for marking or writing a control or manufacturing number in the factory which manufactured the glazing.
  • the possibility of individually providing the glazing for a vehicle with a brand or an inscription directly related to this vehicle arouses considerable interest.
  • the registration of the vehicle chassis number or of another individual designation on the various glazing units may give the possibility of identifying stolen vehicles even if the chassis number, as such, has been removed or modified.
  • the invention proposes to apply the method of marking a glazing by a laser beam to a glazing already mounted by gluing in a bay of the vehicle body, this glazing being provided with an enamel strip, in particular with a peripheral strip forming a decorative frame, by focusing the laser beam which passes through at least part of the glazing on a part of the strip which is inaccessible for any subsequent modification.
  • a part of the enamel strip which is covered in particular by an element belonging to the glazing such as a sheet of glass or of plastic material, a plastic profile, or by an element used for the final assembly of the glazing, in particular a bead of glue or by any other element forming a body with the glazing and not detachable from said glazing mounted in the bodywork bay.
  • an element belonging to the glazing such as a sheet of glass or of plastic material, a plastic profile, or by an element used for the final assembly of the glazing, in particular a bead of glue or by any other element forming a body with the glazing and not detachable from said glazing mounted in the bodywork bay.
  • the part treated by laser radiation for marking the glazing is a part covered by the bead of glue used for the mounting of the glazing or by any other profile or cord integral with the glazing such as an extruded or encapsulated profile.
  • the part which can be marked is limited to the part described above.
  • the marking by the laser beam is carried out from the outside, through the glazing.
  • the glazing is a laminated glazing formed from at least one sheet of glass and at least one layer of plastic material
  • the enamel strip which can be marked according to the invention can not only be placed on the face of the sheet of glass oriented inward but also be arranged on an inner face of a glass sheet of the glazing.
  • the part to be marked can be located not only opposite the adhesive or profiled bead but also, it can be offset because in this arrangement the entire enamel strip is covered by a sheet of plastic material or by a sheet of glass and it is "inaccessible".
  • a pulsed YAG laser is preferably used.
  • the marking or the inscription can be adapted individually to the vehicle in question, which is not possible, for logistical reasons, when the glazing is not yet fitted in this vehicle.
  • the use in accordance with the invention takes advantage in particular of the fact that the glazings which are mounted by gluing in the vehicle are provided in their peripheral part in which the bead of mounting adhesive is located or opposite this bead, an opaque decorative frame for visible light and for ultraviolet, consisting of at least one layer of enamel.
  • the marking according to the invention therefore offers the decisive advantage that it is not possible to remove or modify the inscription without removing the glazing from the body. In this way, the same tamper-proof marking can therefore be obtained on a surface of the glazing, both for simple glazing and for laminated glazing.
  • the implementation of the method of the invention is also carried out in a known manner and with known means, by passing the laser beam over the glazing, by means of movable deflecting mirrors.
  • the control of the return mirrors in the X and Y directions is done using an appropriate process computer, as described in document DE 31 47 385 C2.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Toxicology (AREA)
  • Laser Beam Processing (AREA)
  • Window Of Vehicle (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Claims (3)

  1. Verfahren zum Beschriften einer Glasscheibe mit Hilfe eines Laserstrahlenbündels, indem Laserstrahlung einer Wellenlänge, für die die Glasscheibe im wesentlichen durchlässig ist, durch wenigstens einen Teil der Glasscheibe hindurch auf eine die Laserstrahlung absorbierende Schicht fokussiert wird,
    dadurch gekennzeichnet, daß es auf eine in einer Fahrzeugkarosserie nach dem Klebeverfahren eingebaute und mit einem aus wenigstens einer Emailschicht bestehenden Streifen, insbesondere einem Dekorrahmen, versehene Glasscheibe angewendet wird, wobei die Beschriftung insbesondere auf einem unzugänglichen Teil des Emailstreifens durch Fokussierung der Laserstrahlung auf die den Streifen bildende Emailschicht erfolgt.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Emailstreifen auf der zum Fahrgastraum des Fahrzeugs hin gerichteten Seite der Glasscheibe angeordnet ist, und daß die Beschriftung von der Außenseite her auf einen Teil des Emailstreifens erfolgt, der durch eine Kleberaupe oder ein Profil aus einem Polymer abgedeckt ist.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Emailstreifen auf einer innerhalb der Verglasung liegenden Oberfläche einer Glasscheibe angeordnet wird.
EP94401786A 1993-08-05 1994-08-03 Verfahren zum Markieren vom Autofenstern auf der Stelle Expired - Lifetime EP0637517B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4326314 1993-08-05
DE4326314A DE4326314A1 (de) 1993-08-05 1993-08-05 Verfahren zum Beschriften einer eingebauten Autoglasscheibe

Publications (2)

Publication Number Publication Date
EP0637517A1 EP0637517A1 (de) 1995-02-08
EP0637517B1 true EP0637517B1 (de) 1997-05-07

Family

ID=6494532

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401786A Expired - Lifetime EP0637517B1 (de) 1993-08-05 1994-08-03 Verfahren zum Markieren vom Autofenstern auf der Stelle

Country Status (4)

Country Link
EP (1) EP0637517B1 (de)
AT (1) ATE152673T1 (de)
DE (2) DE4326314A1 (de)
ES (1) ES2104307T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10102193A1 (de) * 2001-01-16 2002-07-18 Volkswagen Ag Verfahren zum Aufbringen einer identifikationsnummer

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19512157C1 (de) * 1995-03-31 1996-05-23 Klaus Kall Verfahren zum Beschichten einer transparenten Trägerplatte sowie danach hergestellte beschichtete Trägerplatte
DE19511977C2 (de) * 1995-04-02 1997-05-22 Gooijer Brigitte De Verwendung von Laserstrahlen zur Herstellung von Bildträgern zur Durchleuchtungsprojektion
DE19652727B4 (de) * 1996-01-12 2005-11-24 Volkswagen Ag Verfahren zum individuellen Kennzeichnen eines Kraftfahrzeuges
DE19644004A1 (de) * 1996-10-31 1998-05-07 Sekurit Saint Gobain Deutsch IR-reflektierende Verbundglasscheibe und Verfahren zu ihrer Herstellung
US6238847B1 (en) 1997-10-16 2001-05-29 Dmc Degussa Metals Catalysts Cerdec Ag Laser marking method and apparatus
DE19802712B4 (de) * 1998-01-24 2017-09-21 Bundesdruckerei Gmbh Verfahren und Vorrichtung zur Belichtung von computergenerierten Hologrammen
WO2000078554A1 (en) 1999-06-22 2000-12-28 Omg Ag & Co. Kg Laser marking compositions and method
DE10015702A1 (de) * 2000-03-29 2001-10-18 Vitro Laser Gmbh Verfahren zum Einbringen wenigstens einer Innengravur in einen flachen Körper und Vorrichtung zum Durchführen des Verfahrens
WO2001094128A1 (en) * 2000-06-09 2001-12-13 Glaverbel Method of producing permanent identification of glass segments
US6503316B1 (en) 2000-09-22 2003-01-07 Dmc2 Degussa Metals Catalysts Cerdec Ag Bismuth-containing laser markable compositions and methods of making and using same
DE10133479C1 (de) * 2001-07-10 2002-12-05 Schott Glas Mit einer Kennzeichnung versehene Solarkollektorröhre und Verfahren zum Aufbringen der Kennzeichnung
EP1340585A1 (de) 2002-02-28 2003-09-03 Retainagroup Limited Gerät zum Markieren eines Fahrzeugs mittels Laserstrahl
US7238396B2 (en) 2002-08-02 2007-07-03 Rieck Albert S Methods for vitrescent marking
DE102006055186A1 (de) * 2006-11-23 2008-05-29 Rudolf Fleischle Verfahren zum Erzeugen von Farb-Informationen, z. B. Motiven, auf einem Träger, insbesondere aus Glas

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495982A1 (fr) * 1980-12-16 1982-06-18 Saint Gobain Vitrage Procede de traitement d'un vitrage feuillete, notamment pour y executer une marque non falsifiable et vitrages obtenus
US4551372A (en) * 1983-03-31 1985-11-05 Saint-Gobain Vitrage Laminated safety glass
DE3641738A1 (de) * 1986-12-06 1988-06-16 Flachglas Ag Kraftfahrzeugscheibe
DE3826355A1 (de) * 1988-08-03 1990-04-26 Flachglas Ag Verfahren zum beschriften von verbundbauteilen mit laserstrahlung und mit diesem verfahren hergestelltes verbundbauteil
DE4022745A1 (de) * 1990-07-18 1992-01-23 Hans Lang Gmbh & Co Kg Ing Verfahren zum anbringen von konfigurationen, wie schriften, bildern o. dgl., auf der rueckseite eines spiegels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10102193A1 (de) * 2001-01-16 2002-07-18 Volkswagen Ag Verfahren zum Aufbringen einer identifikationsnummer

Also Published As

Publication number Publication date
DE69403032T2 (de) 1997-11-20
ATE152673T1 (de) 1997-05-15
DE4326314A1 (de) 1995-02-09
DE69403032D1 (de) 1997-06-12
ES2104307T3 (es) 1997-10-01
EP0637517A1 (de) 1995-02-08

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