EP0610590B1 - Device for depositing an adhesive tape at the beginning of a travelling web - Google Patents

Device for depositing an adhesive tape at the beginning of a travelling web Download PDF

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Publication number
EP0610590B1
EP0610590B1 EP93120703A EP93120703A EP0610590B1 EP 0610590 B1 EP0610590 B1 EP 0610590B1 EP 93120703 A EP93120703 A EP 93120703A EP 93120703 A EP93120703 A EP 93120703A EP 0610590 B1 EP0610590 B1 EP 0610590B1
Authority
EP
European Patent Office
Prior art keywords
adhesive tape
adhesive
web
reel
cassette
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
EP93120703A
Other languages
German (de)
French (fr)
Other versions
EP0610590A1 (en
Inventor
Zygmunt Madrzak
Bernd Kaufmann
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.)
JM Voith GmbH
Original Assignee
JM Voith 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 JM Voith GmbH filed Critical JM Voith GmbH
Priority claimed from EP91103144A external-priority patent/EP0450312B1/en
Publication of EP0610590A1 publication Critical patent/EP0610590A1/en
Application granted granted Critical
Publication of EP0610590B1 publication Critical patent/EP0610590B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/102—Preparing the leading end of the replacement web before splicing operation; Adhesive arrangements on leading end of replacement web; Tabs and adhesive tapes for splicing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4606—Preparing leading edge for splicing
    • B65H2301/4607—Preparing leading edge for splicing by adhesive tape

Definitions

  • the invention relates to a device according to the preamble of patent claim 1.
  • a device is known from EP 0 181 280.
  • EP 0 181 280 a device for applying an adhesive tape is known which comprises a housing which unwinds and unwinds Adhesive tape surrounds.
  • this housing is firmly connected to its guide device, so that in the event the adhesive film is completely used up, the housing must be opened and a time-consuming roll change must be carried out.
  • DE-A 38 34 334 shows a device in which a slider of a grinding device is guided in a guideway, which is essentially formed by a cutting wheel.
  • the frame of the cutting device also has an extension arm to hold an adhesive tape roll on one axis.
  • a device has become known from EP 0 134 533, in which an adhesive tape roll is attached to a holder which can be moved along the adhesive surface.
  • the roll of tape is open and is not housed in a cassette or case.
  • WO 89/03356 only shows a cassette in which an adhesive tape roll is housed, which slides between two rails.
  • a disadvantage of the devices known from the prior art is that the handling of these devices for performing an adhesive connection is particularly impaired by the fact that when the adhesive roll is used up, a time-consuming refilling of the device with a new roll must be carried out.
  • the object of the invention is therefore to provide an easy-to-use device for applying an adhesive tape from a roll guided in a cassette.
  • the adhesive tape 1 shows the adhesive tape 1, consisting of the carrier 2 for the adhesive layer 3, the cover foils 4 and 5, which are separated from one another by a longitudinal seam 9 and adhere to the adhesive layer 3, and the further, narrow, double-sided adhesive strips (also adhesive tape). 7 with a further cover film 8.
  • the adhesive strip 7 can also be replaced by a series of adhesive dots or adhesive surfaces.
  • the adhesive strength of the adhesive layer of the adhesive strip 7 located under the cover film 8 is considerably stronger than the adhesive force of the adhesive layer on the other side of this adhesive strip 7. Since with this adhesive strip according to FIG. 2, the adhesive tape on the web end C of the spool or web roll A on the same is attached, when this end of the web is torn off due to the pull of the old web when the two webs are glued together, the adhesive strips tend to stick to the drum and not to the adhesive tape 1. This keeps the thickness of the joint on the doctor element (doctor blade S) of FIG. 3 small . As a result, only a very small amount of coating slip can collect at this joint.
  • the adhesive strength of the adhesive strips 6, 7 (or 10) - which can also each be an adhesive layer alone - on the side facing the adhesive tape 2 etc., is preferably made weaker than on the other side. You can also - with the same adhesive strength on both sides - form the adhesive surfaces on both sides of different sizes.
  • the adhesive strip 7 (etc. 6, 10, see Fig. 4; 11, see Fig. 5) follows the splice point at a distance from a drum circumference and can therefore the paper web residues, which may get stuck on the doctor element, which arise when the old paper web is knocked off, remove what is very important for the quality of the applied stroke.
  • the "end" C of the web is of course the "beginning" of the reel or web roll A.
  • FIG. 2 shows the state where the adhesive tape 1 is attached on the one hand to the end of the web C of the spool A, on the side facing the inside of the spool and on the other side to the outside B of the same turn of the web.
  • This can be done manually, for example, by folding back the end of the web C into the dash-dotted position (loop G) happen in which this end is temporarily attached to the reel by adhesive pieces P.
  • the cover film 5 has therefore already been pulled off on one side of the adhesive tape 1.
  • the other part of the cover sheet 4 is also peeled off from the adhesive tape 1. This makes it possible to connect the end of the web C to the old web D at this point.
  • the arrows in Fig. 3 indicate the direction of travel of the web.
  • the narrow adhesive strip 7 still adheres to the drum, that is to say it is detached from the adhesive tape 1, specifically here at a point where a reinforcing tape 70 is additionally glued to the drum, but which is also can often be omitted.
  • a reel spool 80 is sketched in principle, in which a bearing plate 82 is provided on a frame 81 for the spool sleeve 83 of the spool 84 of the spool A.
  • a substantially horizontal bracket 85 perpendicular to the winding axis or circumferential surface of the spool A on both sides of the spool A.
  • a holding bar 87 which has a guide in which the bracket 85 is vertically displaceable.
  • the brackets 85 carry a guide rail 86, which can be displaced in the horizontal direction in guides 88.
  • a cassette or other unwinding device for adhesive tapes or adhesive strips can be moved on the guide rail and can be guided along the axis of the spool A.
  • an essentially radial bracket 85 'arranged with respect to the winding axis can also be provided on both sides of the spool on the spool carriage for the guide rail 86. It is not shown here that the cassette or the unwinding device for the adhesive tapes can be guided with a resilient holder on the guide rail 86, ie that the cassette, for example, has a spring arrangement with a Slider, which slides in the guide 89 of the guide rail 86, could be connected.
  • FIG. 5 and 6 show how the cassette K can be held in the guide rail 86 by means of a slide 91 and a holding rail 92 and can be guided along the same.
  • the holding rail 92 is held on the slide by springs 93 and retaining bolts 94.
  • the bolts 94 are screw bolts, and thus the holding rail 92 together with the cassette can be exchanged according to a certain cassette width.
  • a holding plate 95 is used, which can be fastened to the holding rail 92 with wing nuts 97.
  • the cover film can be separated from the adhesive tape roll R by means of a narrow, thin web 96 during the unrolling of the adhesive tape roll.

Landscapes

  • Replacement Of Web Rolls (AREA)

Description

Die Erfindung betrifft eine Einrichtung entsprechend dem Oberbegriff des Patentanspruchs 1. Eine solche Einrichtung ist bekannt aus der EP 0 181 280. Aus der EP 0 181 280 ist eine Einrichtung zum Aufbringen eines Klebebandes bekannt, die ein Gehäuse umfaßt, das das ab- und aufzuwickelnde Klebeband umgibt. Jedoch ist dieses Gehäuse fest mit seiner Führungseinrichtung verbunden, so daß im Falle die Klebefolie vollständig verbraucht ist, das Gehäuse geöffnet und ein zeitaufwendiger Rollenwechsel durchgeführt werden muß. Die DE-A 38 34 334 zeigt eine Einrichtung, bei der in einer Führungsbahn ein Gleitstück einer Schleifeinrichtung geführt wird, welche im wesentlichen von einem Schneidrad gebildet wird. Das Gestell der Schneideinrichtung hat noch einen Ausleger, um eine Klebebandrolle an einer Achse zu halten.The invention relates to a device according to the preamble of patent claim 1. Such a device is known from EP 0 181 280. From EP 0 181 280 a device for applying an adhesive tape is known which comprises a housing which unwinds and unwinds Adhesive tape surrounds. However, this housing is firmly connected to its guide device, so that in the event the adhesive film is completely used up, the housing must be opened and a time-consuming roll change must be carried out. DE-A 38 34 334 shows a device in which a slider of a grinding device is guided in a guideway, which is essentially formed by a cutting wheel. The frame of the cutting device also has an extension arm to hold an adhesive tape roll on one axis.

Aus der EP 0 134 533 ist eine Einrichtung bekannt geworden, bei der eine Klebebandrolle auf einer Halterung angebracht wird, die entlang der Klebefläche verschoben werden kann. Die Klebebandrolle ist offen und nicht in einer Kasette oder einem Gehäuse untergebracht.A device has become known from EP 0 134 533, in which an adhesive tape roll is attached to a holder which can be moved along the adhesive surface. The roll of tape is open and is not housed in a cassette or case.

Die WO 89/03356 zeigt lediglich eine Kassette, in der eine Klebebandrolle untergebracht ist, die zwischen zwei Schienen gleitet.WO 89/03356 only shows a cassette in which an adhesive tape roll is housed, which slides between two rails.

Nachteil der aus dem Stand der Technik bekannten Einrichtungen ist, daß die Handhabbarkeit dieser Einrichtungen zum Durchführen einer Klebeverbindung insbesondere dadurch beeinträchtigt ist, daß wenn die Kleberolle verbraucht ist ein zeitaufwendiges Auffüllen der Einrichtung mit einer neuen Rolle vorgenommen werden muß.A disadvantage of the devices known from the prior art is that the handling of these devices for performing an adhesive connection is particularly impaired by the fact that when the adhesive roll is used up, a time-consuming refilling of the device with a new roll must be carried out.

Aufgabe der Erfindung ist es daher, eine leicht zu handhabende Einrichtung für das Aufbringen eines Klebebandes von in einer Kassette geführten Rolle anzugeben.The object of the invention is therefore to provide an easy-to-use device for applying an adhesive tape from a roll guided in a cassette.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teils des Patentanspruchs 1 gelöst. Nachfolgend wird die Erfindung anhand der Figuren der Zeichnung erläutert; dabei stellt im einzelnen dar:

Figur 1
ein zu verwendendes Klebeband,
Figur 2
einen Ausschnitt des mit der fertigen Stoßstelle versehenen Tambours der Warenbahn,
Figur 3
die Verhältnisse an einer nachgeordneten Streichklinge S einer Streicheinrichtung,
Figur 4
einen Tambourwagen mit einer Führung,
Figur 5
eine Einzelheit in Bezug auf die Halterung in Draufsicht und
Figur 6
im wesentlichen eine Ansicht dazu, teils im Schnitt entsprechend der strichpunktierten dicken Linie in Figur 5.
This object is achieved by the features of the characterizing part of patent claim 1. The invention is explained below with reference to the figures of the drawing; the following shows in detail:
Figure 1
an adhesive tape to be used,
Figure 2
a section of the reel of the web provided with the finished joint,
Figure 3
the conditions on a downstream coating blade S of a coating device,
Figure 4
a drum car with a guide,
Figure 5
a detail with respect to the bracket in plan view and
Figure 6
essentially a view of this, partly in section corresponding to the dash-dotted thick line in FIG. 5.

Fig. 1 zeigt das Klebeband 1, bestehend aus dem Träger 2 für die Klebschicht 3, den durch eine Längsnaht 9 voneinander getrennten Deckfolien 4 und 5, die auf der Klebschicht 3 haften, und den weiteren, schmalen, beidseitig klebenden Klebestreifen (auch Klebeband) 7 mit weiterer Deckfolie 8. Dabei kann der Klebestreifen 7 auch durch eine Reihe von Klebepunkten oder Klebeflächen ersetzt sein.1 shows the adhesive tape 1, consisting of the carrier 2 for the adhesive layer 3, the cover foils 4 and 5, which are separated from one another by a longitudinal seam 9 and adhere to the adhesive layer 3, and the further, narrow, double-sided adhesive strips (also adhesive tape). 7 with a further cover film 8. The adhesive strip 7 can also be replaced by a series of adhesive dots or adhesive surfaces.

Dabei ist die Klebkraft der unter der Deckfolie 8 befindlichen Klebschicht des Klebestreifens 7 wesentlich stärker als die Haftkraft der Klebschicht auf der anderen Seite dieses Klebestreifens 7. Da mit diesem Klebestreifen gemäß Fig. 2 das Klebeband an dem Warenbahnende C des Tambours oder Bahnwickels A an demselben befestigt wird, haftet beim Abreißen dieses Bahnendes durch den Zug der alten Bahn beim Zusammenkleben der beiden Bahnen der Klebestreifen eher am Tambour und nicht an dem Klebeband 1. Dadurch wird die Dicke der Stoßstelle an dem Rakelelement (Streichklinge S) der Fig.3 gering gehalten. Dadurch kann sich an dieser Stoßstelle auch nur eine sehr geringe Menge an Streichmasse sammeln.The adhesive strength of the adhesive layer of the adhesive strip 7 located under the cover film 8 is considerably stronger than the adhesive force of the adhesive layer on the other side of this adhesive strip 7. Since with this adhesive strip according to FIG. 2, the adhesive tape on the web end C of the spool or web roll A on the same is attached, when this end of the web is torn off due to the pull of the old web when the two webs are glued together, the adhesive strips tend to stick to the drum and not to the adhesive tape 1. This keeps the thickness of the joint on the doctor element (doctor blade S) of FIG. 3 small . As a result, only a very small amount of coating slip can collect at this joint.

Man wird vorzugsweise die Klebekraft der Klebestreifen 6, 7 (bzw. 10) - die auch jeweils eine Klebeschicht allein sein können - auf der dem Klebeband 2 usw. zugewandten Seite schwächer machen, als auf der anderen Seite. Man kann auch dazu - bei gleicher Klebestärke auf beiden Seiten - die Klebeflächen auf beiden Seiten verschieden groß ausbilden.The adhesive strength of the adhesive strips 6, 7 (or 10) - which can also each be an adhesive layer alone - on the side facing the adhesive tape 2 etc., is preferably made weaker than on the other side. You can also - with the same adhesive strength on both sides - form the adhesive surfaces on both sides of different sizes.

Der Klebestreifen 7 (usw. 6, 10, siehe Fig. 4; 11, siehe Fig. 5) folgt der Splice-Stelle im Abstand eines Tambourumfanges und kann somit die unter Umständen am Rakelelement hängengebliebenen Papierbahnreste, die beim Abschlagen der alten Papierbahn entstehen, entfernen, was für die Qualität des aufgetragenen Striches sehr wichtig ist.The adhesive strip 7 (etc. 6, 10, see Fig. 4; 11, see Fig. 5) follows the splice point at a distance from a drum circumference and can therefore the paper web residues, which may get stuck on the doctor element, which arise when the old paper web is knocked off, remove what is very important for the quality of the applied stroke.

Das "Ende" C der Warenbahn ist hier natürlich der "Anfang" des Tambours oder Bahnwickels A.The "end" C of the web is of course the "beginning" of the reel or web roll A.

In Fig. 2 ist der Zustand dargestellt, wo das Klebeband 1 einerseits am Warenbahnende C des Tambours A, und zwar auf der dem Tambourinneren zugewandten Seite derselben und andererseits an der nach außen gewandten Seite B derselben Windung der Warenbahn angeheftet ist. Dies kann z.B. manuell durch ein Zurückklappen des Endes der Warenbahn C in die strichpunktiert dargestellte Stellung (Schlaufe G) geschehen, in welcher dieses Ende vorübergehend durch Klebestücke P an dem Tambour befestigt ist. In der Anordnung nach Fig. 2 ist daher bereits die Deckfolie 5 auf der einen Seite des Klebebandes 1 abgezogen. Zwecks Herstellung der Verbindung zwischen den Enden der Warenbahn nach Fig. 3 wird auch der andere Teil der Deckfolie 4 von dem Klebeband 1 abgezogen. Dadurch ist an dieser Stelle die Verbindung des Warenbahnendes C mit der alten Warenbahn D möglich. Die Pfeile in der Fig. 3 geben die Laufrichtung der Warenbahn an. Es ist in der Fig. 3 noch zu erkennen, daß der schmale Klebestreifen 7 noch am Tambour haftet, also von dem Klebeband 1 abgelöst ist, und zwar hier an einer Stelle, wo ein Verstärkungsband 70 zusätzlich auf den Tambour geklebt ist, welches aber auch oft weggelassen werden kann.2 shows the state where the adhesive tape 1 is attached on the one hand to the end of the web C of the spool A, on the side facing the inside of the spool and on the other side to the outside B of the same turn of the web. This can be done manually, for example, by folding back the end of the web C into the dash-dotted position (loop G) happen in which this end is temporarily attached to the reel by adhesive pieces P. In the arrangement according to FIG. 2, the cover film 5 has therefore already been pulled off on one side of the adhesive tape 1. 3, the other part of the cover sheet 4 is also peeled off from the adhesive tape 1. This makes it possible to connect the end of the web C to the old web D at this point. The arrows in Fig. 3 indicate the direction of travel of the web. It can still be seen in FIG. 3 that the narrow adhesive strip 7 still adheres to the drum, that is to say it is detached from the adhesive tape 1, specifically here at a point where a reinforcing tape 70 is additionally glued to the drum, but which is also can often be omitted.

In Fig. 4 ist ein Tambourwagen 80 prinzipmäßig skizziert, bei dem auf einem Gestell 81 eine Lagerplatte 82 für die Wickelhülsenachase 83 der Wickelhülse 84 des Tambours A vorgesehen ist. An dem Gestell 81 befindet sich eine zur Wickelachse bzw. Umfangsfläche des Tambours A senkrechte, im wesentlichen horizontale Konsole 85 zu beiden Seiten des Tambours A. Diese ist getragen in diesem Falle von einer Halteleiste 87, die eine Führung aufweist, in der die Konsole 85 vertikal verschieblich ist. Die Konsolen 85 tragen eine Leitschiene 86, und zwar in horizontaler Richtung verschieblich in Führungen 88. An der Leitschiene ist eine Kassette oder eine sonstige Abrollvorrichtung für Klebebänder oder Klebestreifen verschieblich, und zwar entlang der Achse des Tambours A führbar zu lagern. Es kann für die Leitschiene 86 auch - wie strichpunktiert angedeutet - eine im wesentlichen radiale, in bezug auf die Wickelachse angeordnete Konsole 85' jeweils zu beiden Seiten des Tambours am Tambourwagen vorgesehen sein. Es wird hier nicht dargestellt, daß die Kassette oder die Abrolleinrichtung für die Klebebänder mit einer federnden Halterung an der Leitschiene 86 geführt sein können, d.h. daß z.B. die Kassette über eine Federanordnung mit einem Gleitstück, das in der Führung 89 der Leitschiene 86 gleitet, verbunden sein könnte.4, a reel spool 80 is sketched in principle, in which a bearing plate 82 is provided on a frame 81 for the spool sleeve 83 of the spool 84 of the spool A. On the frame 81 there is a substantially horizontal bracket 85 perpendicular to the winding axis or circumferential surface of the spool A on both sides of the spool A. In this case it is supported by a holding bar 87 which has a guide in which the bracket 85 is vertically displaceable. The brackets 85 carry a guide rail 86, which can be displaced in the horizontal direction in guides 88. A cassette or other unwinding device for adhesive tapes or adhesive strips can be moved on the guide rail and can be guided along the axis of the spool A. As indicated by dash-dotted lines, an essentially radial bracket 85 'arranged with respect to the winding axis can also be provided on both sides of the spool on the spool carriage for the guide rail 86. It is not shown here that the cassette or the unwinding device for the adhesive tapes can be guided with a resilient holder on the guide rail 86, ie that the cassette, for example, has a spring arrangement with a Slider, which slides in the guide 89 of the guide rail 86, could be connected.

In Figur 5 und 6 ist dargestellt, wie die Kassette K mittels einem Gleitstück 91 und einer Halteschiene 92 in der Leitschiene 86 gehalten und entlang derselben geführt werden kann. Dabei ist die Halteschiene 92 über Federn 93 und Haltebolzen 94 an dem Gleitstück gehalten. Die Bolzen 94 sind Schraubbolzen, und somit kann die Halteschiene 92 samt Kassette entsprechend einer bestimmten Kassettenbreite ausgetauscht werden. Dazu dient eine Halteplatte 95, die mit Flügelmuttern 97 an der Halteschiene 92 befestigt werden kann. Es ist noch dargestellt, daß mittels einem schmalen, dünnen Steg 96 die Deckfolie von der Klebebandrolle R während des Abrollens der Klebebandrolle abgetrennt werden kann.5 and 6 show how the cassette K can be held in the guide rail 86 by means of a slide 91 and a holding rail 92 and can be guided along the same. Here, the holding rail 92 is held on the slide by springs 93 and retaining bolts 94. The bolts 94 are screw bolts, and thus the holding rail 92 together with the cassette can be exchanged according to a certain cassette width. For this purpose, a holding plate 95 is used, which can be fastened to the holding rail 92 with wing nuts 97. It is also shown that the cover film can be separated from the adhesive tape roll R by means of a narrow, thin web 96 during the unrolling of the adhesive tape roll.

Claims (2)

  1. A means, in particular a drum car provided therewith, for applying an adhesive tape to the start of a web of a web reel or to the web reel parallel to the centre line thereof with a guide rail (86, 86') running parallel to the web reel (A), and a guide way (89),
    characterised in that the reel of adhesive tape is contained in a cassette,
    the cassette (K) is connected detachably and resiliently to a sliding block (91), the sliding block (91) sliding in the guide way (89) of the guide rail (86).
  2. A means according to Claim 1, characterised in that the cassette (K) has a crosspiece (96) transversely to the reel (R) of adhesive tape, which lifts off therefrom a cover film of the adhesive tape which is to be removed upon unwinding the adhesive tape, the reel of adhesive tape bearing the cover film on its radially outer side.
EP93120703A 1990-04-03 1991-03-02 Device for depositing an adhesive tape at the beginning of a travelling web Expired - Lifetime EP0610590B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4010704 1990-04-03
DE4010704 1990-04-03
DE4033900A DE4033900C2 (en) 1990-04-03 1990-10-25 Splice point at the beginning of the path of a winding to connect the beginning of the path to the end of another winding
DE4033900 1990-10-25
EP91103144A EP0450312B1 (en) 1990-04-03 1991-03-02 Method for splicing the beginning of a travelling web at a splicing point with the end of a web unwound from another roll

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP91103144.1 Division 1991-03-02

Publications (2)

Publication Number Publication Date
EP0610590A1 EP0610590A1 (en) 1994-08-17
EP0610590B1 true EP0610590B1 (en) 1997-08-06

Family

ID=6403655

Family Applications (2)

Application Number Title Priority Date Filing Date
EP93120703A Expired - Lifetime EP0610590B1 (en) 1990-04-03 1991-03-02 Device for depositing an adhesive tape at the beginning of a travelling web
EP93114712A Expired - Lifetime EP0580188B1 (en) 1990-04-03 1991-03-02 Device for producing a splicing portion at the beginning of a web of a roll

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP93114712A Expired - Lifetime EP0580188B1 (en) 1990-04-03 1991-03-02 Device for producing a splicing portion at the beginning of a web of a roll

Country Status (3)

Country Link
EP (2) EP0610590B1 (en)
CA (1) CA2039631C (en)
DE (1) DE4033900C2 (en)

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Also Published As

Publication number Publication date
CA2039631C (en) 2000-02-08
CA2039631A1 (en) 1991-10-04
DE4033900C2 (en) 1995-07-27
EP0610590A1 (en) 1994-08-17
DE4033900A1 (en) 1991-10-10
EP0580188A1 (en) 1994-01-26
EP0580188B1 (en) 1996-09-11

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