EP1439983A2 - Plaque et son procede de fabrication - Google Patents

Plaque et son procede de fabrication

Info

Publication number
EP1439983A2
EP1439983A2 EP02782855A EP02782855A EP1439983A2 EP 1439983 A2 EP1439983 A2 EP 1439983A2 EP 02782855 A EP02782855 A EP 02782855A EP 02782855 A EP02782855 A EP 02782855A EP 1439983 A2 EP1439983 A2 EP 1439983A2
Authority
EP
European Patent Office
Prior art keywords
characters
symbols
plastic layer
adhesive
plastic
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.)
Withdrawn
Application number
EP02782855A
Other languages
German (de)
English (en)
Inventor
Michael Müller
Michael Fitzke
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.)
Volkswagen AG
Fitzke Werbetechnik GmbH
Original Assignee
Volkswagen AG
Fitzke Werbetechnik GmbH
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 Volkswagen AG, Fitzke Werbetechnik GmbH filed Critical Volkswagen AG
Publication of EP1439983A2 publication Critical patent/EP1439983A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/10—Registration, licensing, or like devices

Definitions

  • the invention relates to a method for producing signs according to the preamble of claim 1 and a sign according to the preamble of claim 12.
  • the method is particularly suitable for the production of license plates.
  • License plates are usually produced from a sheet metal blank that has a reflective surface, wherein the alphanumeric characters are stamped into the sheet metal blank, which are assigned to the respective vehicle by the registration office.
  • the raised alphanumeric characters are then coated with black paint, similar to a printing process, so that the characters become visible against the reflective background.
  • a light source is required which is directed at the corresponding sign so that the sign can reflect the incident light rays.
  • electroluminescent coatings are known in which electrons are accelerated and raised into excited states by applying an electric field. On the subsequent return to the basic state, the absorbed energy is partially emitted in the form of light quanta, so that an active light source is formed.
  • the object of the invention is to provide a method for producing signs, in particular motor vehicle signs and motor vehicle signs as such, which can be produced in a manner that is as counterfeit-proof and inexpensive as possible.
  • this object is achieved by a method having the features of claim 1 and a shield having the features of claim 12.
  • a permanent Fastening on a self-illuminating background causes the letters and numbers to have a plastic appearance due to the coating with polyurethane.
  • the light-absorbing design of the characters and / or symbols causes them to stand out against the self-illuminating background, which is brought about by the application of an electroluminescent layer on the base, so that the characters and / or symbols are clearly recognizable. Due to the dissolving of the plastic by the adhesive or during the gluing process, in addition to permanent attachment of the characters on the base of the label, it is difficult to forge the labels, so that they are particularly suitable for the labeling of machines and vehicles.
  • the symbols and the base are flexible and advantageously made of acrylic.
  • the signs can thus easily adapt to a curved sign and are not as stiff as conventional, embossed metal signs, which gain stiffness through embossing.
  • the characters are advantageously produced from a large sheet of material by means of a separation process, for example a laser, a punch or other suitable processes, in order to be able to produce different sizes and any type of font for the characters.
  • the characters are advantageously stuck on with a fast-curing adhesive, in particular a UV-activated adhesive, in order to rule out manipulation after the characters have been applied.
  • a fast-curing adhesive in particular a UV-activated adhesive
  • Another advantage is the stability and durability of UV-activated glue.
  • the characters are arranged on the electroluminescent layer using a template, an adapted film or other spacing aids.
  • a further development provides that the adhesive reacts with the material of the plastic layer in order to further increase the security against forgery.
  • a sign with light-absorbing, alphanumeric characters attached to the plastic layer is very tamper-proof, since when the characters are replaced, the surface of the plastic layer is destroyed and the originally glued sign remains recognizable due to the changed structure of the plastic layer.
  • the characters are raised so that, in addition to being easily recognizable from the side, a haptic impression can also be conveyed.
  • the formation of the characters from an elastic material, in particular plastic ensures good bondability with the plastic and good conformability to the vehicle or the machine shape. Furthermore, the formation of the characters from a plastic, a cohesive connection is made and a loosening of the plastic is facilitated.
  • a reflective, at least partially transparent film is first applied over this electroluminescent layer in order to take into account the legal requirements with regard to the design of vehicle license plates.
  • a further plastic film may be applied over this reflective film, which bears, for example, the European symbol and the national code.
  • a final plastic layer is placed over this layer, which has an essentially smooth surface and consists of a translucent plastic.
  • the base, the electroluminescent layer, the reflective film and the plastic layer are welded together so that they form a structural unit.
  • the corresponding connections and ballast devices for operating the electroluminescent layer are provided on the rear side, that is to say on the side of the electroluminescent layer facing away from the plastic layer.
  • the required character set is first produced on site or taken from the appropriate warehouse.
  • the characters, light-absorbing alphanumeric characters are separated from a material plate, for example by means of a laser separation process or by punching, and are also made of plastic, preferably acrylic, and have a thickness of approximately 0.5 mm.
  • the characters are covered with a plastic, preferably polyurethane, in order to obtain the most plastic appearance possible.
  • the letters and numbers, which are now completely manufactured or stored in this way, are black and flexible due to the choice of material, so that they can easily adapt to a curved surface of the motor vehicle license plate.
  • the alphanumeric characters are aligned on the plastic film and firmly and permanently glued to the plastic layer of the license plate using a fast-curing adhesive, for example a UV-activated adhesive.
  • a fast-curing adhesive for example a UV-activated adhesive.
  • the surface of the label is dissolved by the adhesive or by the solvent contained in the adhesive, so that a material connection is created between the alphanumeric characters and the plastic layer.
  • the sign advantageously also has signs and / or symbols which are glued to the plastic layer which at least partially covers the base with the aid of an adhesive in such a way that parts are removed when the signs and / or symbols are removed of the adhesive.
  • parts of the plastic layer can be torn out when attempting to remove the characters and / or symbols, this effect being achieved in particular by the adhesive being reactively bonded to the material of the plastic layer.
  • the adhesive can also bond with the material of the characters and / or symbols, which practically makes it impossible for the characters and / or symbols to be removed from the plastic layer without residue.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention concerne une plaque comportant une base pourvue d'une couche électroluminescente recouverte d'une couche de matière plastique perméable à la lumière. L'invention concerne également un procédé de production de ladite plaque. L'objectif de l'invention est de permettre d'obtenir des plaques, notamment des plaques minéralogiques, pratiquement infalsifiables, pouvant être produites de manière économique. A cet effet, des caractères alphanumériques absorbant la lumière sont collés sur la couche de matière plastique de sorte que, lors du retrait desdits caractères, au moins les contours de ces derniers restent identifiables.
EP02782855A 2001-10-19 2002-10-08 Plaque et son procede de fabrication Withdrawn EP1439983A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2001151188 DE10151188A1 (de) 2001-10-19 2001-10-19 Schild und Verfahren zur Herstellung eines Schildes
DE10151188 2001-10-19
PCT/EP2002/011244 WO2003036592A2 (fr) 2001-10-19 2002-10-08 Plaque et son procede de fabrication

Publications (1)

Publication Number Publication Date
EP1439983A2 true EP1439983A2 (fr) 2004-07-28

Family

ID=7702760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02782855A Withdrawn EP1439983A2 (fr) 2001-10-19 2002-10-08 Plaque et son procede de fabrication

Country Status (3)

Country Link
EP (1) EP1439983A2 (fr)
DE (1) DE10151188A1 (fr)
WO (1) WO2003036592A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10255377B4 (de) * 2002-11-27 2006-02-16 Fer Fahrzeugelektrik Gmbh Verfahren zur Herstellung eines Schildes
FR2848945B1 (fr) * 2002-12-24 2006-09-15 Fabricauto Sa Plaques mineralogiques a caracteres rapportes, eventuellement plastiques, electroluminescentes, et leur procede de fabrication
FR2856022B1 (fr) * 2003-06-13 2006-10-06 Rene Henri Henry Procede pour fabriquer les outils poincons et matrices de decoupe des caracteres sur les plaques d'immatriculation des vehicules automobiles et outils obtenus.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2335598C3 (de) * 1973-07-13 1982-02-18 Behrens, Hans, Dipl.-Ing., 3340 Wolfenbüttel Verfahren zur Verbesserung der Diebstahlssicherung von Kraftfahrzeugen mittels eines an der Rückfront des Kraftfahrzeuges außen angebrachten Kennzeichens und eines weiteren, mit der Beschriftung des Außenkennzeichens übereinstimmenden, von außen unzugänglichen, sichtbaren Kennzeichens hinter der Rückscheibe auf einem Kennzeichenträger
DE2354031A1 (de) * 1973-10-27 1974-05-09 Young Promotions Pty Ltd Kennzeichen, insbesondere fuer fahrzeuge
US4121003A (en) * 1977-04-22 1978-10-17 Monarch Marking Systems, Inc. Tamper indicating labels
JPS5837856A (ja) * 1981-07-24 1983-03-05 Ricoh Co Ltd 情報記録媒体の製法
US5533289A (en) * 1992-04-16 1996-07-09 I.D. Lite, Inc. Illuminated sign
US5885677A (en) * 1996-04-24 1999-03-23 Minnesota Mining And Manufacturing Company Security label with diffusing indentifier medium and method of making same
FR2777246A1 (fr) * 1998-04-14 1999-10-15 Mutuelle Assurance Des Commerc Dispositif d'identification de vehicule automobile
DE19909723C5 (de) * 1999-03-05 2004-04-15 Daimlerchrysler Ag Sicherheits - Klebefolie als Identifizierungsträger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03036592A3 *

Also Published As

Publication number Publication date
DE10151188A1 (de) 2003-05-08
WO2003036592A3 (fr) 2003-06-12
WO2003036592A2 (fr) 2003-05-01

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