EP1446291A1 - Device for unsticking security elements - Google Patents

Device for unsticking security elements

Info

Publication number
EP1446291A1
EP1446291A1 EP20020783388 EP02783388A EP1446291A1 EP 1446291 A1 EP1446291 A1 EP 1446291A1 EP 20020783388 EP20020783388 EP 20020783388 EP 02783388 A EP02783388 A EP 02783388A EP 1446291 A1 EP1446291 A1 EP 1446291A1
Authority
EP
European Patent Office
Prior art keywords
sheet
roller
tape
security elements
take
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.)
Granted
Application number
EP20020783388
Other languages
German (de)
French (fr)
Other versions
EP1446291B1 (en
Inventor
Matthias Gygi
Raffaele Fina
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.)
KBA Notasys SA
Original Assignee
KBA Giori 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 KBA Giori SA filed Critical KBA Giori SA
Priority to EP02783388A priority Critical patent/EP1446291B1/en
Publication of EP1446291A1 publication Critical patent/EP1446291A1/en
Application granted granted Critical
Publication of EP1446291B1 publication Critical patent/EP1446291B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F19/00Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B41F19/06Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65CLABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00Details of labelling machines or apparatus
    • B65C9/08Label feeding
    • B65C9/18Label feeding from strips, e.g. from rolls
    • B65C9/1865Label feeding from strips, e.g. from rolls the labels adhering on a backing strip
    • B65C9/1869Label feeding from strips, e.g. from rolls the labels adhering on a backing strip and being transferred directly from the backing strip onto the article
    • B65C9/1873Label feeding from strips, e.g. from rolls the labels adhering on a backing strip and being transferred directly from the backing strip onto the article the transfer involving heating means, e.g. for decals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F19/00Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B41F19/06Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
    • B41F19/062Presses of the rotary type

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Labeling Devices (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The separator for detaching a strip (20) carrying security elements from a sheet material (16) to which the security elements are applied consists of a roller (28) over which the strip passes approximately pwerpendicular to the surface of the sheet. The roller is set at a predetermined distance from the surface of the sheet, varying between 5 and 10 mm, and it rotates freely about its axle (29).

Description

Dispositif de décollag;e d'éléments de sécuritéTake-off device; safety elements
La présente invention concerne un dispositif pour séparer un ruban portant des éléments de sécurité et une feuille sur laquelle lesdits éléments de sécurité ont été appliqués, ledit dispositif comprenant des moyens pour décoller le ruban de la feuille.The present invention relates to a device for separating a tape carrying security elements and a sheet on which said security elements have been applied, said device comprising means for removing the tape from the sheet.
La présente invention concerne également une machine comprenant un moins un tel dispositif de séparation.The present invention also relates to a machine comprising at least one such separation device.
Dans l'état de la technique, il est connu d'appliquer des éléments de sécurité sur des papiers-valeurs et en particulier sur des billets de banque ou des cartes de crédit. De tels éléments de contrôle sont bien connus et principalement utilisés pour empêcher la contrefaçon des papiers-valeurs, en particulier la copie de billets de banque. Afin de rendre cette contrefaçon, soit par photocopie soit par l'utilisation d'un scanner couplé à une imprimante couleur, difficile voire même impossible, on s'est mis à intégrer des éléments de contrôle, couramment appelés éléments de sécurité, dans les papiers-valeurs imprimés en plus des moyens particuliers déjà employés, comme par exemple des filigranes dans le papier ou des techniques d'impression particulières.In the state of the art, it is known to apply security elements to securities and in particular to banknotes or credit cards. Such control elements are well known and mainly used to prevent counterfeiting of securities, in particular the copying of banknotes. In order to make this counterfeit, either by photocopying or by the use of a scanner coupled to a color printer, difficult or even impossible, we began to integrate control elements, commonly called security elements, in the papers -printed values in addition to the particular means already used, such as for example watermarks in paper or particular printing techniques.
En effet, les progrès techniques portant sur les photocopieurs et les scanners sont tels que du matériel très performant est maintenant accessible facilement à toute personne. De ce fait, les éléments de sécurité ont dû eux aussi être multipliés et perfectionnés en conséquence.Indeed, the technical progress relating to photocopiers and scanners is such that high performance equipment is now easily accessible to anyone. As a result, the security elements also had to be multiplied and perfected accordingly.
Différentes techniques ont été développées pour réaliser des éléments de sécurité pour papiers-valeurs. Outre l'impression d'images au moyen de couleurs latentes, il est connu d'appliquer des images particulières sur les impressions. Ces images comprennent une image optiquement variable (OVD) sous forme d'un hologramme ou kinégramme dont l'aspect change en fonction de l'angle sous lequel l'image est considérée. L'application de ces images, qui sont portées sur un ruban, peut se faire à chaud ou à froid. A titre d'exemple, la demande de brevet EP 0 625 466, dont le contenu est incorporé à la présente demande par référence, décrit une installation permettant une telle application à froid sur des billets en utilisant un adhésif à deux composants, le premier composant étant appliqué à l'emplacement prévu sur chaque billet et le second étant sur l'image elle-même.Different techniques have been developed to produce security elements for securities. In addition to printing images by means of latent colors, it is known to apply particular images to the prints. These images include an optically variable image (OVD) in the form of a hologram or kinegram, the appearance of which changes depending on the angle from which the image is viewed. The application of these images, which are worn on a ribbon, can be done hot or cold. By way of example, patent application EP 0 625 466, the content of which is incorporated into the present application by reference, describes an installation allowing such an application to cold on banknotes using a two-component adhesive, the first component being applied to the location provided on each banknote and the second being on the image itself.
Dans la publication EP 0 965 446, dont le contenu est incorporé par référence à la présente demande, on décrit une autre machine pour l'application à chaud d'images de sécurité sur des billets de banque. Dans cette machine, on préchauffe le ruban en amont du cylindre applicateur puis on transfère les images sur emplacements prévus des impressions de billets de banque au moyen de tampons placés sur le cylindre applicateur, par pression contre un cylindre de pression.In publication EP 0 965 446, the content of which is incorporated by reference into the present application, another machine is described for the hot application of security images on banknotes. In this machine, the ribbon is preheated upstream of the applicator cylinder and then the images are transferred to the locations provided for printing banknotes by means of pads placed on the applicator cylinder, by pressing against a pressure cylinder.
La publication EP 0 768 189, dont le contenu est incorporé par référence à la présente demande, montre finalement un document, comme un papier-valeur, comportant un élément de sécurité en forme de film qui est attaché de manière durable audit document et qui ne peut pas être modifié ni retiré sans être abîmé.Publication EP 0 768 189, the content of which is incorporated by reference into the present application, finally shows a document, such as security paper, comprising a film-shaped security element which is permanently attached to said document and which does not cannot be modified or removed without being damaged.
Outre le registre des images par rapport aux impressions, une étape cruciale dans le procédé d'application de telles images sur des impressions est celle du décollage de l'image du ruban qui la porte, lorsque ledit ruban est écarté de la feuille comportant les impressions. Comme les images appliquées sont très fines afin qu'il ne soit pas possible de la modifier ou de la retirer sans l'abîmer de manière irrémédiable, il faut, d'une part, que le collage soit parfait et, d'autre part, que lors du retrait du support des images, généralement un ruban, lesdites images ne soient pas endommagées.In addition to the register of images in relation to prints, a crucial step in the process of applying such images to prints is that of taking off the image of the ribbon which carries it, when said ribbon is removed from the sheet containing the impressions. . As the applied images are very fine so that it is not possible to modify or remove it without damaging it irreparably, it is necessary, on the one hand, that the collage is perfect and, on the other hand, that when removing the support from the images, generally a ribbon, said images are not damaged.
La solution qui est connue à l'heure actuelle est d'utiliser un système qui presse le ruban contre la feuille sur laquelle l'image est appliquée après les cylindres d'application et la séparation ruban-feuille se produit juste après cette compression. Ce dispositif comprend notamment un élément de pression avec un plan incliné dont l'extrémité la plus mince presse le ruban contre la feuille, et ensuite le ruban est décollé en prenant une direction approximativement perpendiculaire à la surface de la feuille. Néanmoins, il s'est avéré qu'un tel système qui pince le ruban contre la feuille comportait certains désavantages. Le premier risque encouru est celui d'une rupture du ruban. Un telle rupture est très fâcheuse, car, comme souvent le ruban est utilisé en continu pour repasser plusieurs fois dans la machine, l'on va perdre du temps à réinitialiser la machine et l'on va également perdre des longueurs de ruban avec des images, ce qui est très coûteux.The solution which is known at present is to use a system which presses the tape against the sheet on which the image is applied after the application rolls and the tape-sheet separation occurs immediately after this compression. This device notably comprises a pressure element with an inclined plane whose thinnest end presses the tape against the sheet, and then the tape is peeled off in a direction approximately perpendicular to the surface of the sheet. However, it has been found that such a system which clamps the tape against the sheet has certain disadvantages. The first risk involved is that of the ribbon breaking. Such a break is very annoying because, as often the tape is used continuously to iron several times in the machine, we will waste time resetting the machine and we will also lose lengths of tape with images , which is very expensive.
Un autre problème est la création de poussière par frottement qui encrasse la machine et exige un nettoyage plus fréquent de celle-ci.Another problem is the creation of dust by friction which fouls the machine and requires more frequent cleaning thereof.
Finalement, et malgré la pression, le décollage n'était en fait pas parfait et des résidus de colle (appelés "flakes") salisse les feuilles, voir même des images sont appliquées en dehors des endroits prévus sur les feuilles. En effet, comme indiqué plus haut et décrit dans la demande EP 0 965 446, un même ruban peut passer plusieurs fois dans la même machine: la distance entre deux emplacements successifs pour une image sur deux impressions successives d'une même feuille est souvent plus grande que la distance entre deux images successives sur le ruban. En conséquence, pour optimiser l'utilisation d ruban, il repasse plusieurs fois dans la machine de sorte que deux images successives sur le ruban sont en fait destinées à des impressions situées sur des feuilles différentes. Il faut donc arriver à décoller une image donnée sans endommager l'image suivante sur le ruban, sinon une impression sur une autre feuille, par exemple la feuille suivante, recevra l'image endommagée et sera rejetée au contrôle de qualité.Finally, and despite the pressure, the takeoff was in fact not perfect and glue residues (called "flakes") soiled the leaves, or even images were applied outside the places provided on the leaves. Indeed, as indicated above and described in application EP 0 965 446, the same ribbon can pass several times in the same machine: the distance between two successive locations for an image on two successive prints of the same sheet is often more greater than the distance between two successive images on the ribbon. Consequently, to optimize the use of ribbon, it passes through the machine several times so that two successive images on the ribbon are in fact intended for prints located on different sheets. It is therefore necessary to take off a given image without damaging the next image on the ribbon, otherwise a print on another sheet, for example the next sheet, will receive the damaged image and will be rejected at quality control.
Ainsi, le but de l'invention est d'améliorer les systèmes connus en surmontant les inconvénients de ceux-ci.Thus, the object of the invention is to improve the known systems by overcoming the drawbacks of these.
Plus particulièrement, le but de l'invention est de proposer un système de décollage simple, d'entretien réduit, et dont le réglage est rapide.More particularly, the object of the invention is to propose a simple take-off system, of reduced maintenance, and the adjustment of which is rapid.
L'invention est caractérisée en ce que les moyens de décollage comprennent au moins un rouleau de décollage le long duquel le ruban passe approximativement perpendiculairement à la surface de la feuille. L'un des avantages de cette invention est sa grande simplicité effective. De plus, comme il n'y a plus de compression du ruban et de la feuille, le risque de rupture du ruban est nettement diminué de même que la génération de poussière.The invention is characterized in that the take-off means comprise at least one take-off roller along which the strip passes approximately perpendicular to the surface of the sheet. One of the advantages of this invention is its great effective simplicity. In addition, since there is no longer any compression of the ribbon and of the sheet, the risk of the ribbon breaking is significantly reduced, as is the generation of dust.
L'invention va également à l'encontre d'un préjugé technique: en effet, l'on a toujours cru que une compression du ruban contre la feuille était indispensable pour parfaire le transfert de l'image sur la feuille. Ainsi, on procédait toujours à des ajustements empiriques pour assurer une certaine compression sans trop appuyer pour éviter la rupture du ruban et une génération trop importante de poussière. De plus il fallait régulièrement ajuster le système pour compenser l'usure du plan incliné.The invention also goes against a technical prejudice: indeed, it has always been believed that a compression of the ribbon against the sheet was essential to perfect the transfer of the image on the sheet. Thus, empirical adjustments were always made to ensure a certain compression without pressing too much to avoid breaking the ribbon and generating too much dust. In addition, the system had to be regularly adjusted to compensate for the wear of the inclined plane.
L'invention sera mieux comprise par la description de modes d'exécution de celle-ci et des figures qui s'y rapportent.The invention will be better understood from the description of embodiments thereof and from the figures relating thereto.
La figure 1 montre de manière schématique une machine d'impression effectuant l'application d'éléments de sécurité sur des feuilles.Figure 1 shows schematically a printing machine performing the application of security elements on sheets.
La figure 2 montre un dispositif de décollage connu dans l'état de la techniqueFIG. 2 shows a take-off device known in the state of the art
La figure 3 montre un dispositif de décollage selon l'inventionFIG. 3 shows a take-off device according to the invention
Une machine d'impression permettant l'application d'éléments de sécurité selon l'invention est représentée schématiquement à la figure 1. Un margeur 1 monté en amont d'une machine de traitement de feuilles est pourvu d'un système de transport des feuilles 2, qui conduit à une installation d'alimentation en feuilles 3. L'installation d'alimentation en feuilles 3 comprend, par exemple, un premier tambour d'aspiration 4 et un tambour de transfert 5. En aval de ce tambour 5 est prévue une pluralité de galets 6 pour le guidage des feuilles sur le tambour de transfert 5. Ces galets de guidage de feuilles 6 sont disposés avec leurs axes parallèles au tambour de transfert 5. Un deuxième tambour de transfert 7 amène les feuilles à un cylindre de traitement 8 de la machine de traitement. Le cylindre de traitement 8 est pourvu de quatre systèmes de retenue 9, par exemple des bandes d'aspiration, s'étendant axialement et réparties uniformément sur la circonférence. Ces bandes d'aspiration sont sollicitées de manière contrôlée avec de l'air en dépression ou de l'air sous pression au moyen d'un dispositif d'introduction rotatif. En aval du cylindre de traitement 8 est disposé rouleau de guidage 10 d'un système de bandes transporteuses 11. Autour de ce rouleau de guidage 10 est guidée une pluralité de bandes transporteuses 11 juxtaposées en direction axiale. Toutefois, il est aussi possible de ne disposer qu'une seule bande transporteuse large 11. Ces bandes transporteuses 11 conduisent, depuis ce rouleau de guidage 10, à un rouleau de refroidissement 12 et entourent ce dernier suivant un angle prédéterminé, et un rouleau de guidage supplémentaire 13 est disposé après le rouleau de refroidissement 12. Les bandes transporteuses 11 entourent le rouleau de guidage 13 suivant un angle prédéterminé et parviennent à un troisième rouleau de guidage 14 dans une direction approximativement horizontale. Juste avant ce troisième rouleau de guidage 14 est disposé, en dessous des bandes transporteuses 11 et entre les bandes transporteuses 11, un tambour d'aspiration 15 dont la surface périphérique est tangente au plan de transport des feuilles 16 dans cette zone. Ce tambour d'aspiration 15 peut aussi être disposé immédiatement après les bandes transporteuses 11. Une sortie 17 connue en soi est raccordée aux bandes transporteuses 11. Cette sortie 17 est pourvue d'un transporteur à chaînes rotatif, sur les deux chaînes 18 duquel est fixée une pluralité de systèmes de saisie 19. Dans le présent exemple, la machine de traitement est réalisée sous la forme d'une machine d'estampage à ruban et le cylindre de traitement est ici un cylindre d'estampage 8. Le cylindre d'estampage 8 est dans le présent exemple pourvu de timbres chauds sur sa surface périphérique qui sont chauffés électriquement. L'apport d'énergie aux timbres chauds sur le cylindre d'estampage 8 s'effectue, par exemple, par le biais de transformateurs. Par-dessus le cylindre d'estampage 8 est disposé, dans le présent exemple, un dispositif qui n'a pas été représenté plus en détail, destiné à l'apport et au retrait d'un ruban de support sans fin 20, par exemple un ruban d'estampage à chaud. Le ruban de support 20 est amené au cylindre d'estampage 8 au moyen d'un poste de déroulement 21 et est guidé avec les feuilles 23 tout autour du cylindre d'estampage 8. Le ruban de support 20 est guidé jusqu'au premier rouleau de guidage 10 des bandes transporteuses 11 et de là, conjointement avec les bandes transporteuses 11, autour du rouleau de refroidissement 12 jusqu'au deuxième rouleau de guidage 13 des bandes transporteuses 11. Après ce deuxième rouleau de guidage 13 est disposé un dispositif de décollement du ruban 20. A partir de ce dispositif de décollement du ruban 20, le ruban de support 20 est amené jusqu'à un poste d'enroulement 22. En dessous du cylindre d'estampage 8 est disposée une pluralité de galets de contact 23 coopérant avec le cylindre d'estampage 8. Dans le présent exemple, deux rangées de galets de contact 23 s'étendant axialement sont pressées de manière élastique au moyen de cylindres pneumatiques 24 contre le cylindre d'estampage 8.A printing machine allowing the application of security elements according to the invention is shown diagrammatically in FIG. 1. A feeder 1 mounted upstream of a sheet processing machine is provided with a sheet transport system 2, which leads to a sheet feeding installation 3. The sheet feeding installation 3 comprises, for example, a first suction drum 4 and a transfer drum 5. Downstream of this drum 5 is provided a plurality of rollers 6 for guiding the sheets on the transfer drum 5. These sheet guide rollers 6 are arranged with their axes parallel to the transfer drum 5. A second transfer drum 7 feeds the sheets to a processing cylinder 8 of the processing machine. The treatment cylinder 8 is provided with four retainer 9, for example suction strips, extending axially and uniformly distributed around the circumference. These suction bands are controlled in a controlled manner with vacuum air or pressurized air by means of a rotary introduction device. Downstream of the treatment cylinder 8 is disposed guide roller 10 of a conveyor belt system 11. Around this guide roller 10 is guided a plurality of conveyor belts 11 juxtaposed in the axial direction. However, it is also possible to have only one wide conveyor belt 11. These conveyor belts 11 lead, from this guide roller 10, to a cooling roller 12 and surround the latter at a predetermined angle, and a roller additional guide 13 is arranged after the cooling roller 12. The conveyor belts 11 surround the guide roller 13 at a predetermined angle and reach a third guide roller 14 in an approximately horizontal direction. Just before this third guide roller 14 is arranged, below the conveyor belts 11 and between the conveyor belts 11, a suction drum 15 whose peripheral surface is tangent to the plane of transport of the sheets 16 in this zone. This suction drum 15 can also be arranged immediately after the conveyor belts 11. An outlet 17 known per se is connected to the conveyor belts 11. This outlet 17 is provided with a rotary chain conveyor, on the two chains 18 of which is fixed a plurality of gripping systems 19. In the present example, the processing machine is produced in the form of a ribbon stamping machine and the processing cylinder is here a stamping cylinder 8. The cylinder stamping 8 is in the present example provided with hot stamps on its peripheral surface which are electrically heated. The supply of energy to the hot stamps on the stamping cylinder 8 takes place, for example, by means of transformers. Above the stamping cylinder 8 is arranged, in the present example, a device which has not been shown in more detail, intended for supplying and removing an endless support strip 20, for example hot stamping tape. The support tape 20 is brought to the stamping cylinder 8 by means of an unwinding station 21 and is guided with the sheets 23 all around the stamping cylinder 8. The support tape 20 is guided to the first roll guide 10 of the conveyor belts 11 and from there, together with the conveyor belts 11, around the cooling roller 12 to the second guide roller 13 of the belts conveyors 11. After this second guide roller 13 is arranged a tape peeling device 20. From this tape peeling device 20, the support tape 20 is brought to a winding station 22. Below a plurality of contact rollers 23 cooperating with the stamping cylinder 8 are arranged on the stamping cylinder 8. In the present example, two rows of axially extending contact rollers 23 are pressed elastically by means of pneumatic cylinders 24 against the stamping cylinder 8.
Cette machine, connue, est décrite en détail dans le brevet EP 0 888 239 et le contenu de ce brevet est incorporé à la présente demande par référence.This known machine is described in detail in patent EP 0 888 239 and the content of this patent is incorporated into the present application by reference.
La figure 2 montre en détail un dispositif de décollement du ruban connu dans l'état de la technique. Dans ce système, la feuille 16 et le ruban 20 sont transportés ensemble sur les bandes 11 autour du rouleau 13 et arrivent dans le dispositif de décollage en lui- même. Dans ce dispositif, on utilise un élément de pression 25 comportant un plan incliné dont la pointe 26 exerce une pression sur le ruban 20 et la feuille 16 au point P. Dès que ce point P est passé, le ruban 20 est séparé de la feuille 16 par décollement, passe tangentiellement le long d'un rouleau 27 et continue jusqu'à la station d'enroulement 22 (figure 1). La feuille quant à elle est transportée par les bandes 11 dans la sortie de la machine.Figure 2 shows in detail a tape peeling device known in the prior art. In this system, the sheet 16 and the ribbon 20 are transported together on the strips 11 around the roller 13 and arrive in the release device itself. In this device, a pressure element 25 is used comprising an inclined plane, the tip 26 of which exerts pressure on the ribbon 20 and the sheet 16 at point P. As soon as this point P has passed, the ribbon 20 is separated from the sheet. 16 by detachment, passes tangentially along a roller 27 and continues to the winding station 22 (Figure 1). As for the sheet, it is transported by the strips 11 in the outlet of the machine.
La figure 3 montre en détail un mode d'exécution du dispositif de décollement selon l'invention. Selon ce mode, les éléments identique sont identifiés par les mêmes références numériques. Comme dans la figure 2, la feuille 16 et le ruban 20 sont déplacés par les bandes transporteuses 11 et arrivent dans le dispositif de décollage. Dans ce dispositif de décollage, l'élément de pression 25 est remplacé par un rouleau 28 de décollage monté sur un axe 29 parallèle à l'axe du rouleau 13. Le rouleau de décollage 28 n'est dans ce cas pas en contact avec la feuille 16 et n'exerce pas de pression entre ladite feuille et le ruban 20 au contraire de l'élément de pression 25 de la figure 2. La distance entre le rouleau de décollage 28 et la feuille 16 est de préférence comprise entre 5 et 10 mm.Figure 3 shows in detail an embodiment of the release device according to the invention. According to this mode, the identical elements are identified by the same reference numerals. As in Figure 2, the sheet 16 and the tape 20 are moved by the conveyor belts 11 and arrive in the take-off device. In this take-off device, the pressure element 25 is replaced by a take-off roller 28 mounted on an axis 29 parallel to the axis of the roller 13. The take-off roller 28 is in this case not in contact with the sheet 16 and does not exert pressure between said sheet and the ribbon 20, unlike the pressure element 25 in FIG. 2. The distance between the take-off roller 28 and the sheet 16 is preferably between 5 and 10 mm.
De préférence, le rouleau de décollage 28 est monté libre en rotation sur un axe 29.Preferably, the take-off roller 28 is mounted to rotate freely on an axis 29.
Comme indiqué dans la figure, le décollement du ruban 20 par rapport à la feuille 16 se produit approximativement au point D indiqué dans la figure 3. Il s'avère que, de manière surprenante et inattendue, que l'absence de pression avant le décollage du ruban 16 est effectivement bénéfique audit procédé de décollage et que cette construction particulière effectue un décollage bien meilleur dans lequel des résidus et dépôts divers sont fortement diminués. Bien entendu, comme il n'y a plus de pression sur le ruban, la génération de poussière et de résidus est fortement réduite voire même supprimée.As indicated in the figure, the detachment of the ribbon 20 relative to the sheet 16 occurs approximately at the point D indicated in FIG. 3. It turns out that, surprisingly and unexpectedly, that the absence of pressure before takeoff tape 16 is actually beneficial to said take-off process and that this particular construction performs a much better take-off in which various residues and deposits are greatly reduced. Of course, since there is no longer any pressure on the tape, the generation of dust and residues is greatly reduced or even eliminated.
L'invention n'est pas limitée au mode d'exécution décrit et la protection s'étend aux moyens équivalents à ceux décrits. The invention is not limited to the embodiment described and the protection extends to means equivalent to those described.

Claims

Revendications claims
1. Dispositif pour séparer un ruban (20) portant des éléments de sécurité et une feuille (16) sur laquelle lesdits éléments de sécurité ont été appliqués, ledit dispositif comprenant des moyens pour décoller le ruban de la feuille, caractérisé en ce que lesdits moyens de décollage comprennent au moins un rouleau de décollage (28) le long duquel le ruban (20) passe approximativement perpendiculairement à la surface de la feuille (16).1. Device for separating a tape (20) carrying security elements and a sheet (16) on which said security elements have been applied, said device comprising means for removing the tape from the sheet, characterized in that said means take-off includes at least one take-off roller (28) along which the tape (20) passes approximately perpendicular to the surface of the sheet (16).
2. Dispositif selon la revendication 1, caractérisé en ce que ledit rouleau de décollage (28) se trouve à une distance prédéterminée de la surface de le feuille (16).2. Device according to claim 1, characterized in that said release roller (28) is at a predetermined distance from the surface of the sheet (16).
3. Dispositif selon la revendication 2, caractérisé en ce que ledit rouleau décollage (28) se trouve à une distance variant entre 5 et 10 mm de la surface de la feuille.3. Device according to claim 2, characterized in that said take-off roller (28) is located at a distance varying between 5 and 10 mm from the surface of the sheet.
4. Dispositif selon la revendication 3, caractérisé en ce que ledit rouleau de décollage (28) est monté libre en rotation sur son axe (29).4. Device according to claim 3, characterized in that said take-off roller (28) is mounted to rotate freely on its axis (29).
5. Machine pour le transfert d'éléments de sécurité sur des documents, en particulier sur des feuilles de papiers-valeurs, caractérisée en ce qu'elle comprend au moins un dispositif selon l'une des revendications précédentes. 5. Machine for transferring security elements on documents, in particular on sheets of securities, characterized in that it comprises at least one device according to one of the preceding claims.
EP02783388A 2001-11-23 2002-11-19 Device for unsticking security elements Expired - Lifetime EP1446291B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02783388A EP1446291B1 (en) 2001-11-23 2002-11-19 Device for unsticking security elements

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP01811129A EP1314554A1 (en) 2001-11-23 2001-11-23 Removing device for security-elements
EP01811129 2001-11-23
PCT/IB2002/004821 WO2003043823A1 (en) 2001-11-23 2002-11-19 Device for unsticking security elements
EP02783388A EP1446291B1 (en) 2001-11-23 2002-11-19 Device for unsticking security elements

Publications (2)

Publication Number Publication Date
EP1446291A1 true EP1446291A1 (en) 2004-08-18
EP1446291B1 EP1446291B1 (en) 2006-02-01

Family

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EP01811129A Withdrawn EP1314554A1 (en) 2001-11-23 2001-11-23 Removing device for security-elements
EP02783388A Expired - Lifetime EP1446291B1 (en) 2001-11-23 2002-11-19 Device for unsticking security elements

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01811129A Withdrawn EP1314554A1 (en) 2001-11-23 2001-11-23 Removing device for security-elements

Country Status (10)

Country Link
US (1) US20050166771A1 (en)
EP (2) EP1314554A1 (en)
JP (1) JP2005526671A (en)
KR (1) KR20050044516A (en)
CN (1) CN100396484C (en)
AT (1) ATE316867T1 (en)
CA (1) CA2467109A1 (en)
DE (1) DE60209034T2 (en)
RU (1) RU2288103C2 (en)
WO (1) WO2003043823A1 (en)

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Also Published As

Publication number Publication date
CN100396484C (en) 2008-06-25
JP2005526671A (en) 2005-09-08
RU2288103C2 (en) 2006-11-27
EP1314554A1 (en) 2003-05-28
CN1589203A (en) 2005-03-02
RU2004118837A (en) 2005-03-27
CA2467109A1 (en) 2003-05-30
ATE316867T1 (en) 2006-02-15
US20050166771A1 (en) 2005-08-04
DE60209034T2 (en) 2006-10-26
DE60209034D1 (en) 2006-04-13
KR20050044516A (en) 2005-05-12
AU2002347454A1 (en) 2003-06-10
EP1446291B1 (en) 2006-02-01
WO2003043823A1 (en) 2003-05-30

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