EP0966347B1 - Method and device for producing a security element and a corresponding security element - Google Patents

Method and device for producing a security element and a corresponding security element Download PDF

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Publication number
EP0966347B1
EP0966347B1 EP98912357A EP98912357A EP0966347B1 EP 0966347 B1 EP0966347 B1 EP 0966347B1 EP 98912357 A EP98912357 A EP 98912357A EP 98912357 A EP98912357 A EP 98912357A EP 0966347 B1 EP0966347 B1 EP 0966347B1
Authority
EP
European Patent Office
Prior art keywords
electronic article
article surveillance
strip
envelope
strip element
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
EP98912357A
Other languages
German (de)
French (fr)
Other versions
EP0966347A1 (en
Inventor
Detlef Duschek
Gordon Klassen
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.)
Meto International GmbH
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Meto International GmbH
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Filing date
Publication date
Application filed by Meto International GmbH filed Critical Meto International GmbH
Publication of EP0966347A1 publication Critical patent/EP0966347A1/en
Application granted granted Critical
Publication of EP0966347B1 publication Critical patent/EP0966347B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G08B13/2445—Tag integrated into item to be protected, e.g. source tagging
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/90—Magnetic feature
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9265—Special properties
    • Y10S428/928—Magnetic property
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1028—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
    • Y10T156/103—Encasing or enveloping the configured lamina
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12465—All metal or with adjacent metals having magnetic properties, or preformed fiber orientation coordinate with shape
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • Y10T428/239—Complete cover or casing

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Fuses (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Die Bonding (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A method of producing a security element for electronically securing an object, a device for producing the security element and the security element itself form aspects of the present invention. The security element includes a strip element embedded in sheathing. The sheathing has a melting temperature below that of the strip element. The method has associated steps and the device has associated elements for producing the security element from the strip element and sheathing. In each aspect, the ends of the strip element and sheathing are heated and the sheathing ends pulled to seal the strip element in the sheathing.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Herstellung eines Sicherungselements für die elektronische Artikelsicherung sowie ein entsprechendes Sicherungselement Bei dem Sicherungselement handelt es sich um ein sog. Streifenelement - also um einen weichmagnetischen Metallstreifen oder einen Metallstreifen mit hohem Barkhauseneffekt- der bei Anlegen eines äußeren magnetischen Wechselfeldes in einer Überwachungszone zur Aussendung eines charakteristischen Signals angeregt wird. Das Streifenelement trägt eine Ummantelung, deren Schmelztemperatur unterhalb der Schmelztemperatur des Metallstreifens liegt. Ebenso kann es sich bei dem Sicherungselement jedoch auch um ein sog. Thin-Film-Sicherungselement, ein Resonanzfrequenz-Sicherungselement oder um ein akustomagnetisches Sicherungselement handeln.The invention relates to a method and an apparatus for producing a Security element for electronic article surveillance as well as a Corresponding securing element The securing element is a so-called strip element - i.e. a soft magnetic metal strip or a metal strip with a high Barkhausen effect - if you put one on external alternating magnetic field in a surveillance zone Emission of a characteristic signal is excited. The strip element wears a jacket whose melting temperature is below the Melting temperature of the metal strip is. It can also be the case with the However, the securing element is also a so-called thin-film securing element Resonance frequency fuse element or around an acustomagnetic Act security element.

Streifenelemente mit einer Plastikummantelung sind bereits bekannt geworden und werden u.a. zur elektronischen Artikelsicherung von in Samentüten abgepacktem Samen verwendet. Bei dieser sog. Quellensicherung werden die Streifenelemente mit dem Samen in die Samentüten eingefüllt Zwecks Herstellung der Sicherungselemente wird weichmagnetisches Bandmaterial oder Bandmaterial mit hohem Barkhauseneffekt beidseitig mit einer Kunststoffolie beschichtet und anschließend in Streifenelemente der gewünschten Länge unterteilt. Nachteilig bei dem bekannt gewordenen Verfahren bzw. den mittels des Verfahrens hergestellten Sicherungselementen ist, daß in den Endbereichen das Metall offen liegt und mit den zu sichernden Waren in Kontakt kommt. Aus Gründen des Verbraucherschutzes ist die Verwendung der bekannt gewordenen Sicherungselemente in vielen Fällen ausgeschlossen.Strip elements with a plastic coating have already become known and are among others for electronic article surveillance of in seed bags packaged seeds used. With this so-called source tagging, the Stripe elements filled with the seed into the seed bags Soft magnetic is used to manufacture the securing elements Tape material or tape material with a high Barkhausen effect on both sides with a Plastic film coated and then in strip elements of the desired Length divided. A disadvantage of the method which has become known or Securing elements produced by the method is that in the End areas the metal is exposed and in contact with the goods to be secured is coming. The use of is known for reasons of consumer protection securing elements that have become excluded in many cases.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zur Herstellung eines vollständig abgekapselten Sicherungselements sowie ein entsprechendes Sicherungselement vorzuschlagen.The invention has for its object a method and an apparatus for Manufacture of a fully encapsulated fuse element as well propose appropriate securing element.

Den nächsthommenden Stand der Technik bildet die US-A-4,626,311. The closest prior art is US-A-4,626,311.

Die Aufgabe wird hinsichtlich des Verfahrens dadurch gelöst, daß ein die Ummantelung tragendes Streifenelement einer vorgegebenen Länge oder ein sonstiges Element für die elektronische Artikelsicherung bereitgestellt wird; anschließend wird die Ummantelung zumindest in den Endbereichen erwärmt und in Längsrichtung des Sicherungselements gedehnt, bis sie sich über die Endbereiche des Sicherungselements hinaus erstreckt.The object is achieved with respect to the method in that a Sheath-bearing strip element of a predetermined length or other element is provided for electronic article surveillance; the jacket is then heated and at least in the end regions stretched in the longitudinal direction of the securing element until it extends over the End regions of the securing element extends beyond.

Gemäß einer vorteilhaften, kostengünstigen Weiterbildung des erfindungsgemäßen Verfahren ist vorgesehen, daß ein weichmagnetisches Bandmaterial oder ein Bandmaterial mit hohem Barkhauseneffekt oder ein Bandmaterial, das sonstige Sicherungselemente trägt, bereitgestellt wird und in einem Extrusionsprozeß mit einer Ummantelung aus Kunststoff umgeben wird. Anschließend wird das Bandmaterial mit der Ummantelung in Abschnitte (=Streifenelemente) einer gewissen Länge unterteilt wird.According to an advantageous, inexpensive development of the invention The method provides for a soft magnetic strip material or a tape material with a high Barkhausen effect or a tape material which carries other security elements, is provided and in one Extrusion process is surrounded with a plastic sheath. The strip material with the sheathing is then cut into sections (= Strip elements) of a certain length.

Bezüglich der Vorrichtung zur Herstellung eines Sicherungselements für die elektronische Artikelsicherung wird die Aufgabe dadurch gelöst, daß die Vorrichtung zwei Klemmelemente aufweist, die in einer ersten Position (I) die Endbereiche des ummantelten Streifenelements (Sicherungselement) einklemmen, daß ein Translationsmechanismus vorgesehen ist, der die Klemmelemente in Längsrichtung des eingeklemmten Sicherungselements bewegbar macht, daß eine Heizvorrichtung vorgesehen ist, die das Streifenelement oder das sonstige Element für die elektronische Artikelsicherung zumindest in den Endbereichen aufheizt, und daß die Klemmelemente nach dem Aufheizen der Endbereiche des Sicherungselements in eine weitere Position (II) bewegt werden, die zumindest teilweise außerhalb der Endbereiche des Streifenelements oder des sonstigen Elements für die elektronische Artikelsicherung liegt, wodurch die erwärmten und weich gewordenen Endbereiche der Ummantelung über die Enden des Streifen-elements oder des sonstigen Elements für die elektronische Artikelsicherung gezogen werden.Regarding the device for producing a securing element for the electronic article surveillance the task is solved in that the Device has two clamping elements, which in a first position (I) End areas of the coated strip element (securing element) pinch that a translation mechanism is provided which the Clamping elements in the longitudinal direction of the clamped securing element makes movable that a heating device is provided which the strip element or the other element for electronic article surveillance heats up at least in the end regions, and that the clamping elements after Heating the end regions of the securing element into a further position (II) are moved, at least partially outside the end regions of the Strip element or other element for the electronic Article security lies, causing the warmed and softened End areas of the casing over the ends of the strip element or other elements for electronic article surveillance.

Gemäß einer vorteilhaften Weiterbildung der erfindungsgemäßen Vorrichtung ist vorgesehen, daß die Heizvorrichtung in die Klemmelemente integriert ist. In diesem Zusammenhang hat es sich als besonders günstig erwiesen, wenn die Klemmelemente elektrisch beheizbar ausgebildet sind. According to an advantageous development of the device according to the invention provided that the heating device is integrated in the clamping elements. In In this context, it has proven particularly favorable if the Clamping elements are designed to be electrically heatable.

Eine vorteilhafte Ausgestaltung der erfindungsgemäßen Vorrichtung schlägt im Falle von Streifenelementen vor, daß es sich bei einem Klemmelement um zwei ringförmig angeordnete Klemmbacken handelt, die federnd zueinander gelagert sind. Wird ein sonstiges Element für die elektronische Artikelsicherung eingekapselt, empfiehlt sich die Verwendung zweier parallel zueinander angeordneter Klemmelemente.An advantageous embodiment of the device according to the invention suggests in In the case of strip elements that a clamping element is two annularly arranged jaws that are resiliently mounted to each other are. Will be another item for electronic article surveillance encapsulated, the use of two parallel to each other is recommended arranged clamping elements.

Gemäß einer kostengünstigen Ausgestaltung der erfindungsgemäßen Vorrichtung ist vorgesehen, daß die Steuerung der Temperatur der Heizvorrichtung und/oder des Translationsmechanismus' von einer Steuereinheit vorgenommen wird.According to an inexpensive embodiment of the device according to the invention it is provided that the control of the temperature of the heating device and / or of the translation mechanism is carried out by a control unit.

Bezüglich des Sicherungselements selbst wird die Aufgabe dadurch gelöst, daß die Schmelztemperatur der Ummantelung unterhalb der Schmelztemperatur des Streifenelements liegt, und daß die Endbereiche der Ummantelung nach entsprechender Aufheizung über die Enden des Streifenelements oder des sonstigen Elements für die elektronische Artikelsicherung gezogen sind, so daß das Streifenelement oder das sonstige Element für die elektronische Artikelsicherung vollständig durch das Material der Ummantelung versiegelt ist. Infolge der vollständigen Abkapselung des Streifenelements oder des sonstigen Elements für die elektronische Artikelsicherung von der zu sichernden Ware ist das erfindungsemäße Sicherungselement für jede beliebig Anwendung problemlos einsetzbar.With regard to the securing element itself, the object is achieved in that the melting temperature of the casing below the melting temperature of the Strip element lies, and that the end regions of the casing appropriate heating over the ends of the strip element or other elements for electronic article surveillance are drawn, so that the strip element or the other element for the electronic Article security is completely sealed by the material of the casing. As a result of the complete encapsulation of the strip element or the other Elements for the electronic article surveillance of the goods to be secured the fuse element according to the invention for any application easy to use.

Die Erfindung wird anhand der nachfolgenden Figuren näher erläutert. Es zeigt:

  • Fig. 1: einen Längsschnitt durch das erfindungsgemäße Sicherungselement,
  • Fig. 2: eine perspektivische Ansicht einer Ausgestaltung der erfindungsgemäßen Vorrichtung und
  • Fig. 3: ein Flußdiagramm zur Durchführung des erfindungsgemäßen Verfahrens.
    • The invention is explained in more detail with reference to the following figures. It shows:
  • 1: a longitudinal section through the securing element according to the invention,
  • 2: a perspective view of an embodiment of the device according to the invention and
  • Fig. 3: a flow chart for performing the method according to the invention.

    • Fig. 1 zeigt einen Längsschnitt durch das erfindungsgemäße Sicherungselement 8. Das Sicherungselement 8 besteht aus einem Streifenelement 5 der Länge L, das durch die Ummantelung 6 vollständig versiegelt ist. Hierzu wurde die Ummantelung 6 zumindest in den Endbereichen 7 des Streifenelements 5 erwärmt, und das weichgewordene Material wurde über die Endbereiche 7 des Streifenelements 5 gezogen.Fig. 1 shows a longitudinal section through the securing element according to the invention 8. The securing element 8 consists of a strip element 5 of length L, which is completely sealed by the casing 6. For this, the Sheath 6 at least in the end regions 7 of the strip element 5 heated, and the softened material was over the end portions 7 of the Strip element 5 drawn.

    In Fig. 2 ist eine perspektivische Ansicht einer Ausgestaltung der erfindungsgemäßen Vorrichtung 1 gezeigt. Die Vorrichtung 1 besteht im wesentlichen aus zwei Klemmelementen 2, die über einen Translationsmechanismus 10 in x-Richtung relativ zueinander verschiebbar sind. Die Bewegung selbst erfolgt motorgesteuert. Die Größe der Translationsbewegung wird mittels eines nicht gesondert dargestellten Winkelgebers ermittelt. Die Regel-/Steuereinheit 9 koordiniert den Bewegungsablauf der Vorrichtung 1.
    Jedes der beiden Klemmelemente 2 besteht aus zwei Klemmbacken 3, die im geschlossenen Zustand ringförmig und so dimensioniert sind, daß sie ein Streifenelement 5 einklemmen können. Die beiden Klemmbacken sind über Federn 4 miteinander verbunden. Das Zusammen- und Auseinanderfahren der Klemmbacken 3 der Klemmelemente 2 in z-Richtung erfolgt gleichfalls mittels der Regel-/Steuereinheit 9.
    Im gezeigten Fall sind die Klemmelemente 2 elektrisch beheizbar. Die Heizvorrichtung 11 wird von der Steuer-/Regeleinheit 9 so geschaltet, daß die Ummantelung 6 des Streifenelements 5 in den Endbereichen 7 aufweicht. Anschließend wird die weich gewordenen Ummantelung 6 infolge der Translationsbewegung der beiden Klemmelemente 2 in x-Richtung bzw. in -x-Richtung über die Endbereiche 7 des Streifenelements 5 gezogen.    FIG. 2 shows a perspective view of an embodiment of the device 1 according to the invention. The device 1 essentially consists of two clamping elements 2, which can be displaced relative to one another in the x direction via a translation mechanism 10. The movement itself is motor-controlled. The size of the translation movement is determined by means of an angle encoder, not shown separately. The regulating / control unit 9 coordinates the movement sequence of the device 1.
    Each of the two clamping elements 2 consists of two clamping jaws 3, which in the closed state are ring-shaped and dimensioned such that they can clamp a strip element 5. The two jaws are connected to one another via springs 4. The clamping jaws 3 of the clamping elements 2 are moved together and apart in the z direction likewise by means of the regulating / control unit 9.
    In the case shown, the clamping elements 2 can be heated electrically. The heating device 11 is switched by the control unit 9 in such a way that the sheathing 6 of the strip element 5 softens in the end regions 7. The softened sheath 6 is then pulled over the end regions 7 of the strip element 5 as a result of the translational movement of the two clamping elements 2 in the x direction or in the x direction.

    Fig. 3 zeigt ein Flußdiagramm zur Ansteuerung der erfindungsgemäßen Vorrichtung 1. Der Steuer-/Regeleinheit 9 wird die Temperatur To vorgegeben, auf die die Ummantelung 6 in den Endbereichen 7 des Streifenelements 5 aufgeheizt werden muß, damit sie aufgeweicht wird. Die Strecke, um die der Translationsmechanismus 10 die Klemmelemente 3 bewegt, ist durch entsprechende Stoppmechanismen hardware-mäßig vorgegeben.
    Das Programm wird unter Punkt 12 gestartet. Das Streifenelement 5 mit der Ummantelung 6 ist zwischen den Klemmbacken 3 der Klemmelemente 2 positioniert, und die Klemmbacken 3 der beiden Klemmelemente 2 werden zusammengefahren. Anschließend werden die Klemmbacken 3 entsprechend den Programmpunkten 14, 15 auf die Temperatur To aufgeheizt. Sobald die Temperatur To erreicht und darüber hinaus sichergestellt ist, daß die Ummantelung 6 in den Endbereichen 7 des Streifenelements 5 gleichfalls die erforderliche Temperatur erreicht hat, werden die Klemmelemente 2 unter Punkt 16 in x-Richtung bzw. in -x-Richtung um die vorgegebene Strecke auseinandergefahren. Das aufgeweichte Material der Ummantelung 6 wird hierdurch über die Endbereiche 7 des Streifenelements 5 geschoben, und das erfindungsgemäße Sicherungselement 8 ist fertig. Das Programm wird bei Punkt 17 beendet.     3 shows a flow chart for controlling the device 1 according to the invention. The control unit 9 is given the temperature To, to which the sheath 6 in the end regions 7 of the strip element 5 must be heated so that it is softened. The distance by which the translation mechanism 10 moves the clamping elements 3 is predetermined in terms of hardware by corresponding stop mechanisms.
    The program is started under point 12. The strip element 5 with the sheathing 6 is positioned between the clamping jaws 3 of the clamping elements 2, and the clamping jaws 3 of the two clamping elements 2 are moved together. The clamping jaws 3 are then heated to the temperature To in accordance with the program points 14, 15. As soon as the temperature To is reached and, moreover, it is ensured that the casing 6 in the end regions 7 of the strip element 5 has likewise reached the required temperature, the clamping elements 2 are moved around the predetermined point 16 in the x direction or in the x direction Widened route. The softened material of the casing 6 is thereby pushed over the end regions 7 of the strip element 5, and the securing element 8 according to the invention is finished. The program ends at point 17.

    BezugszeichenlisteReference list

    11
    erfindungsgemäße Vorrichtungdevice according to the invention
    22nd
    KlemmelementClamping element
    33rd
    KlemmbackenJaws
    44th
    Federfeather
    55
    StreifenelementStrip element
    66
    UmmantelungSheathing
    77
    EndbereichEnd area
    88th
    erfindungsgemäßes SicherungselementFuse element according to the invention
    99
    RegeleinheitControl unit
    1010th
    TranslationsmechanismusTranslation mechanism
    1111
    HeizvorrichtungHeater
    1212th
    Motorengine

    Claims (8)

    1. A method of manufacturing a security element (8) for electronic article surveillance, comprising a strip element (5) or some other element for electronic article surveillance with an envelope (6) whose melting temperature lies below the melting temperature of said strip element (5), said method comprising the following steps:
      providing a strip element (5) of a predetermined length (L) or some other element for electronic article surveillance, which carries said envelope (6);
      heating said envelope (6) at least in the end sections (7); and
      expanding said envelope (6) in the longitudinal direction (x) of the security element (8) until it extends beyond the end sections (7) of the security element (8).
    2. The method as claimed in claim 1,
         wherein a soft magnetic web material or a web with some other elements for electronic article surveillance is provided and surrounded by an envelope (6) of plastic material in an extrusion process.
    3. The method as claimed in claim 2,
         wherein said web material with said envelope (6) is subdivided into sections (= strip elements (5)) of a predetermined length (L).
    4. A device for manufacturing a security element (5) for electronic article surveillance, which is comprised of a strip element (5) or some other element for electronic article surveillance and is surrounded by an envelope (6) whose melting temperature lies below the melting temperature of said strip element (5),
      wherein said device includes two clamping elements (2) which in a first position (I) clamp the end sections (7) of the coated strip element (5) or the other element for electronic article surveillance (security element (8)),
      wherein provision is made for a translation mechanism causing said clamping elements (2) to be movable in the longitudinal direction (x) of the clamped security element (8),
      wherein a heating device is provided which heats at least the end sections of the strip element or the other element for electronic article surveillance, and
      wherein said two movably disposed clamping elements (2), following heating of the end sections (7) of the security element (8), are moved into a further position (II) lying at least in part outside the end sections (7) of the strip element (5) or the other element for electronic article surveillance, whereby the heated and softened end sections (7) of the envelope (6) are pulled over the ends of the strip element (5) or the other element for electronic article surveillance.
    5. The device as claimed in claim 4,
         wherein said heating device is formed integral with said clamping elements (2).
    6. The device as claimed in claim 5,
         wherein, in the event of a strip element (5) being involved, said clamping element (2) is comprised of two annularly disposed clamping jaws (3) mounted in resilient relationship with each other.
    7. The device as claimed in claim 6,
         wherein provision is made for a control unit (9) controlling both the temperature of the heatable clamping elements (2) and the advancing and retracting movements of the clamping jaws (3).
    8. A security element for electronic article surveillance, manufactured according to the method of claim 1, wherein the strip element is a soft magnetic strip element (5) or some other element for electronic article surveillance provided with an envelope (6),
      wherein the melting temperature of said envelope (6) lies below the melting temperature of said strip element (5) or said other element for electronic article surveillance, and
      wherein the end sections (7) of said envelope (6), upon suitable heating, are pulled over the ends of said strip element (5) or said other element for electronic article surveillance so that said strip element (5) or said other element for electronic article surveillance is completely sealed by the material of said envelope (6).
    EP98912357A 1997-03-14 1998-02-20 Method and device for producing a security element and a corresponding security element Expired - Lifetime EP0966347B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    DE19710600A DE19710600A1 (en) 1997-03-14 1997-03-14 Method and device for producing a securing element and a corresponding securing element
    DE19710600 1997-03-14
    PCT/EP1998/000994 WO1998041382A1 (en) 1997-03-14 1998-02-20 Method and device for producing a security element and a corresponding security element

    Publications (2)

    Publication Number Publication Date
    EP0966347A1 EP0966347A1 (en) 1999-12-29
    EP0966347B1 true EP0966347B1 (en) 2001-07-25

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    ID=7823376

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP98912357A Expired - Lifetime EP0966347B1 (en) 1997-03-14 1998-02-20 Method and device for producing a security element and a corresponding security element

    Country Status (9)

    Country Link
    US (1) US6440522B1 (en)
    EP (1) EP0966347B1 (en)
    AT (1) ATE203451T1 (en)
    AU (1) AU6723198A (en)
    DE (2) DE19710600A1 (en)
    DK (1) DK0966347T3 (en)
    ES (1) ES2161524T3 (en)
    NO (1) NO994376L (en)
    WO (1) WO1998041382A1 (en)

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    Also Published As

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    ATE203451T1 (en) 2001-08-15
    NO994376D0 (en) 1999-09-09
    DE19710600A1 (en) 1998-09-17
    DE59801080D1 (en) 2001-08-30
    AU6723198A (en) 1998-10-12
    DK0966347T3 (en) 2001-10-29
    ES2161524T3 (en) 2001-12-01
    US6440522B1 (en) 2002-08-27
    WO1998041382A1 (en) 1998-09-24
    NO994376L (en) 1999-09-09
    EP0966347A1 (en) 1999-12-29

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