EP1714785A1 - Shaft bore for engaging a sleeve of a blanket cylinder - Google Patents

Shaft bore for engaging a sleeve of a blanket cylinder Download PDF

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Publication number
EP1714785A1
EP1714785A1 EP06007701A EP06007701A EP1714785A1 EP 1714785 A1 EP1714785 A1 EP 1714785A1 EP 06007701 A EP06007701 A EP 06007701A EP 06007701 A EP06007701 A EP 06007701A EP 1714785 A1 EP1714785 A1 EP 1714785A1
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EP
European Patent Office
Prior art keywords
piece
carrier shaft
section
sleeve
shaft according
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
EP06007701A
Other languages
German (de)
French (fr)
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EP1714785B1 (en
Inventor
Thomas Pfitzmaier
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.)
Technotrans SE
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Technotrans SE
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Filing date
Publication date
Application filed by Technotrans SE filed Critical Technotrans SE
Publication of EP1714785A1 publication Critical patent/EP1714785A1/en
Application granted granted Critical
Publication of EP1714785B1 publication Critical patent/EP1714785B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders

Definitions

  • the invention relates to a carrier shaft for receiving the winding cores of cloth rolls.
  • the invention relates to the storage of cleaning cloth rolls in offset printing machines.
  • Cleaning cloth rolls are usually wound on a core in the form of a sleeve made of cardboard, plastic or metal.
  • the sleeves are pushed onto support shafts and fixed axially and in the direction of rotation for the time until the wound-up cloth stock is consumed.
  • the empty sleeve is removed and a new roll of cloth is pushed onto the shaft.
  • the roll change requires the aid of tools to remove the empty shell and, if necessary, to place a new roll in position.
  • the invention has for its object to provide a receptacle for a cloth roll of the type mentioned, which allows a roll change without the use of tools.
  • the carrier shaft according to the invention is characterized in that it has at one end to the shaft end conically widening head piece with non-round cross-section and that at the other end a tool-free detachable tail is provided.
  • the assembly of a roller on the carrier shaft is effected in that the carrier shaft is inserted into the winding core sleeve or this is pushed onto the carrier shaft.
  • the detachable end piece is removed.
  • the carrier shaft enters the winding core sleeve until the outwardly flared head reaches the end of the sleeve. Since the head widens conically towards the end of the shaft and otherwise out of round, for example polygonal, the shaft jammed in the sleeve or the sleeve on the shaft.
  • the non-circular shape of the head piece ensures that the sleeve is held against rotation on the shaft.
  • a non-circular shape here means, in particular, that the head piece has a polygonal, for example square or hexagonal cross section or a cross section provided with sharp-edged ribs.
  • the cross section is formed so that the sleeve is fixed against rotation on the shaft. The sleeve can therefore optionally be driven or braked.
  • the releasable end piece at the other end of the shaft preferably has a ball detent mechanism whose spring-biased balls on the one hand enable locking of the tail, but on the other hand can be relieved from the spring preload to release the tail by means of a handle.
  • Both the head piece and the end piece have an annular projecting shoulder, which serves as an axial stop for the cloth rolls.
  • a cloth roll 10 is wound, for example, on a winding core sleeve 12 in the form of a cardboard tube.
  • the winding core sleeve 12 is received by a carrier shaft 14.
  • the support shaft 14 is formed in the central region by a tube 16, in particular made of steel, at its right end in Fig. 2, a head piece 18 is attached and merges on the left side in Fig. 2 in a shaft portion 20, on which a sleeve-shaped End piece 22 is releasably attached.
  • a shank portion 24 of smaller diameter on which the sleeve-shaped end piece 22 can be pushed and on which this is latched, as will be explained below.
  • the tail has in the area outside the cloth roll 10 on a radially projecting, a shoulder 26 forming annular portion 28 which serves as a stop for the cloth roll 10 and holds it to the left in the axial direction.
  • resiliently biased detent balls 30 are indicated by dashed lines in the rest. These attach the end piece 22 on the shaft portion 24. From the shaft portion 24 occurs in the axial direction of a push rod 32 with a knob 34 at its end. The push rod 32 can be pressed in the axial direction in the shaft portion 24 to the right in Fig. 2 and thereby releases the spring bias of the locking balls 30, so that the sleeve-shaped end piece 22 can be removed. In this way, the cloth roll can be pushed down to the left in Fig. 2 of the support shaft 14 and the support shaft to the right in Fig. 2 are pulled out of the cloth roll.
  • the head piece has, within the end of the winding core sleeve 16, a wedge section 36 which has a non-circular, in particular polygonal, cross-section in the illustrated example.
  • This wedge portion is provided with sharp corners and incidentally in the interior of the sleeve 16 in conical together. Due to the conical shape and the sharp-edged corners is achieved that the head piece with the wedge portion 36 when pulling in from the right into the winding core sleeve anchored here in the direction of rotation, for example, cuts into the cardboard tube.
  • the cross section of the wedge portion 36 need not be square. It also does not have to be a uniform polygon.
  • an outwardly projecting annular portion 38 which corresponds to the annular portion 28 at the other end and serves as an axial stop for the cloth roll.
  • the carrier shaft terminates in a short axle 40th

Abstract

The shaft has a head piece (18) at one end and an removable end piece (22) at another end, where the head piece conically widens to the former end and has a multi-edged cross section. An outwardly projecting ring section is provided at the head piece as a stopper for a cloth roller. The end piece is held by a locking ball mechanism. The end piece is put back on a shaft section, which has a diameter smaller than the carrier shaft.

Description

Die Erfindung betrifft eine Trägerwelle für die Aufnahme der Wickelkernhülsen von Tuchrollen.The invention relates to a carrier shaft for receiving the winding cores of cloth rolls.

Insbesondere bezieht sich die Erfindung auf die Lagerung von Reinigungstuch-Rollen bei Offset-Druckmaschinen.In particular, the invention relates to the storage of cleaning cloth rolls in offset printing machines.

Reinigungstuchrollen werden üblicherweise auf einen Kern in der Form einer Hülse aus Pappe, Kunststoff oder auch Metall gewickelt. Die Hülsen werden auf Trägerwellen aufgeschoben und für die Zeit, bis der aufgewickelte Tuchvorrat verbraucht wird, axial und in Drehrichtung festgelegt. Wenn eine Tuchrolle verbraucht ist, wird die leere Hülse entfernt, und eine neue Tuchrolle wird auf die Welle aufgeschoben.Cleaning cloth rolls are usually wound on a core in the form of a sleeve made of cardboard, plastic or metal. The sleeves are pushed onto support shafts and fixed axially and in the direction of rotation for the time until the wound-up cloth stock is consumed. When a roll of cloth is used up, the empty sleeve is removed and a new roll of cloth is pushed onto the shaft.

Bei herkömmlichen Konstruktionen erfordert der Rollenwechsel die Zuhilfenahme von Werkzeug, um die leere Hülse zu entfernen und gegebenenfalls eine neue Rolle in Stellung zu bringen.In conventional designs, the roll change requires the aid of tools to remove the empty shell and, if necessary, to place a new roll in position.

Die Notwendigkeit, Werkzeug für den Rollenwechsel einzusetzen, erweist sich häufig als nachteilig. Das benötigte Werkzeug ist häufig nicht ohne weiteres auffindbar und muß gesucht werden, zumindest herbeigeholt werden. Im übrigen kostet das Lösen bzw. Befestigen der Hülsen mithilfe des Werkzeugs Zeit.The need to use tools for roll change often proves detrimental. The required tool is often not easily findable and must be sought, at least be brought to. Incidentally, loosening or attaching the sleeves using the tool takes time.

Der Erfindung liegt die Aufgabe zugrunde, eine Aufnahme für eine Tuchrolle der genannten Art zu schaffen, die einen Rollenwechsel ohne Verwendung von Werkzeug ermöglicht.The invention has for its object to provide a receptacle for a cloth roll of the type mentioned, which allows a roll change without the use of tools.

Zur Lösung dieser Aufgabe ist die erfindungsgemäße Trägerwelle dadurch gekennzeichnet, dass sie an einem Ende ein sich zum Wellenende hin konisch erweiterndes Kopfstück mit unrundem Querschnitt aufweist und dass am anderen Ende ein werkzeuglos lösbares Endstück vorgesehen ist.To solve this problem, the carrier shaft according to the invention is characterized in that it has at one end to the shaft end conically widening head piece with non-round cross-section and that at the other end a tool-free detachable tail is provided.

Die Montage einer Rolle auf der Trägerwelle erfolgt dadurch, dass die Trägerwelle in die Wickelkernhülse eingeschoben oder diese auf die Trägerwelle aufgeschoben wird. Zu diesem Zweck wird erfindungsgemäß das lösbare Endstück entfernt. Die Trägerwelle tritt in die Wickelkernhülse ein, bis das nach außen sich konisch erweiternde Kopfstück das Ende der Hülse erreicht. Da sich das Kopfstück konisch zum Ende der Welle hin erweitert und im übrigen unrund, beispielsweise mehrkantig ist, verklemmt sich die Welle in der Hülse bzw. die Hülse auf der Welle. Durch die unrunde Form des Kopfstücks wird erreicht, dass die Hülse auf der Welle drehfest gehalten wird. Eine unrunde Form bedeutet hier insbesondere, dass das Kopfstück einen eckigen, beispielsweise quadratischen oder sechseckigen Querschnitt oder einen mit scharfkantigen Rippen versehenen Querschnitt aufweist. In jedem Fall ist der Querschnitt so ausgebildet, dass die Hülse auf der Welle drehfest festgelegt wird. Die Hülse kann daher gegebenenfalls angetrieben oder auch gebremst werden.The assembly of a roller on the carrier shaft is effected in that the carrier shaft is inserted into the winding core sleeve or this is pushed onto the carrier shaft. For this purpose, according to the invention, the detachable end piece is removed. The carrier shaft enters the winding core sleeve until the outwardly flared head reaches the end of the sleeve. Since the head widens conically towards the end of the shaft and otherwise out of round, for example polygonal, the shaft jammed in the sleeve or the sleeve on the shaft. The non-circular shape of the head piece ensures that the sleeve is held against rotation on the shaft. A non-circular shape here means, in particular, that the head piece has a polygonal, for example square or hexagonal cross section or a cross section provided with sharp-edged ribs. In any case, the cross section is formed so that the sleeve is fixed against rotation on the shaft. The sleeve can therefore optionally be driven or braked.

Das lösbare Endstück am anderen Ende der Welle weist vorzugsweise einen Kugelrastmechanismus auf, dessen federnd vorgespannte Kugeln einerseits eine Verriegelung des Endstücks ermöglichen, andererseits aber zum Lösen des Endstück mithilfe eines Handgriffs von der Federvorspannung entlastet werden können.The releasable end piece at the other end of the shaft preferably has a ball detent mechanism whose spring-biased balls on the one hand enable locking of the tail, but on the other hand can be relieved from the spring preload to release the tail by means of a handle.

Sowohl das Kopfstück als auch das Endstück weisen eine ringförmig vorspringende Schulter auf, die als axialer Anschlag für die Tuchrollen dient.Both the head piece and the end piece have an annular projecting shoulder, which serves as an axial stop for the cloth rolls.

Im folgenden wird ein bevorzugtes Ausführungsbeispiel der Erfindung anhand der beigefügten Zeichnung näher erläutert.

Fig. 1
ist eine Ansicht einer Tuchrolle auf einer erfindungsgemäßen Trägerwelle;
Fig. 2
zeigt die Anordnung als Tuchrolle und Trägerwelle im Längsschnitt.
In the following a preferred embodiment of the invention will be described with reference to the accompanying drawings.
Fig. 1
is a view of a roll of cloth on a support shaft according to the invention;
Fig. 2
shows the arrangement as a cloth roll and carrier shaft in longitudinal section.

Eine Tuchrolle 10 ist beispielsweise auf eine Wickelkernhülse 12 in der Form einer Papphülse aufgewickelt. Die Wickelkernhülse 12 wird durch eine Trägerwelle 14 aufgenommen. Die Trägerwelle 14 wird im mittleren Bereich gebildet durch ein Rohr 16, insbesondere aus Stahl, an dessen rechtem Ende in Fig. 2 ein Kopfstück 18 befestigt ist und das auf der linken Seite in Fig. 2 in einen Wellenabschnitt 20 übergeht, an dem ein hülsenförmiges Endstück 22 lösbar befestigt ist.A cloth roll 10 is wound, for example, on a winding core sleeve 12 in the form of a cardboard tube. The winding core sleeve 12 is received by a carrier shaft 14. The support shaft 14 is formed in the central region by a tube 16, in particular made of steel, at its right end in Fig. 2, a head piece 18 is attached and merges on the left side in Fig. 2 in a shaft portion 20, on which a sleeve-shaped End piece 22 is releasably attached.

Von dem Wellenabschnitt 20 geht nach links in Fig. 2 ein Schaftabschnitt 24 geringeren Durchmessers aus, auf den das hülsenförmige Endstück 22 aufschiebbar ist und auf dem dieses verrastbar ist, wie anschließend erläutert werden soll. Das Endstück weist im Bereich außerhalb der Tuchrolle 10 einen radial vorspringenden, eine Schulter 26 bildenden Ringabschnitt 28 auf, der als Anschlag für die Tuchrolle 10 dient und diese nach links in Axialrichtung festhält.From the shaft portion 20 goes to the left in Fig. 2, a shank portion 24 of smaller diameter, on which the sleeve-shaped end piece 22 can be pushed and on which this is latched, as will be explained below. The tail has in the area outside the cloth roll 10 on a radially projecting, a shoulder 26 forming annular portion 28 which serves as a stop for the cloth roll 10 and holds it to the left in the axial direction.

In Fig. 2 sind im übrigen federnd vorgespannte Rastkugeln 30 gestrichelt angedeutet. Diese legen das Endstück 22 auf dem Schaftabschnitt 24 fest. Aus dem Schaftabschnitt 24 tritt in Axialrichtung eine Druckstange 32 mit einem Knauf 34 an ihrem Ende aus. Die Druckstange 32 kann in Axialrichtung in den Schaftabschnitt 24 nach rechts in Fig. 2 hineingedrückt werden und löst dabei die Federvorspannung der Rastkugeln 30, so dass das hülsenförmige Endstück 22 abgezogen werden kann. Auf diese Weise kann die Tuchrolle nach links in Fig. 2 von der Trägerwelle 14 heruntergeschoben bzw. die Trägerwelle nach rechts in Fig. 2 aus der Tuchrolle herausgezogen werden.In Fig. 2, resiliently biased detent balls 30 are indicated by dashed lines in the rest. These attach the end piece 22 on the shaft portion 24. From the shaft portion 24 occurs in the axial direction of a push rod 32 with a knob 34 at its end. The push rod 32 can be pressed in the axial direction in the shaft portion 24 to the right in Fig. 2 and thereby releases the spring bias of the locking balls 30, so that the sleeve-shaped end piece 22 can be removed. In this way, the cloth roll can be pushed down to the left in Fig. 2 of the support shaft 14 and the support shaft to the right in Fig. 2 are pulled out of the cloth roll.

Das Kopfstück weist innerhalb des Endes der Wickelkernhülse 16 einen Keilabschnitt 36 auf, der einen unrunden, insbesondere mehrkantigen, bei dem dargestellten Beispiel quadratischen Querschnitt aufweist. Dieser Keilabschnitt ist mit scharfkantigen Ecken versehen und läuft im übrigen in das Innere der Hülse 16 hinein konisch zusammen. Durch die konische Form und die scharfkantigen Ecken wird erreicht, dass das Kopfstück mit dem Keilabschnitt 36 beim Hereinziehen von rechts in die Wickelkernhülse sich hier in Drehrichtung verankert, beispielsweise in die Papphülse einschneidet. Der Querschnitt des Keilabschnitts 36 muß nicht quadratisch sein. Es muß sich auch nicht um ein gleichmäßiges Polygon handeln.The head piece has, within the end of the winding core sleeve 16, a wedge section 36 which has a non-circular, in particular polygonal, cross-section in the illustrated example. This wedge portion is provided with sharp corners and incidentally in the interior of the sleeve 16 in conical together. Due to the conical shape and the sharp-edged corners is achieved that the head piece with the wedge portion 36 when pulling in from the right into the winding core sleeve anchored here in the direction of rotation, for example, cuts into the cardboard tube. The cross section of the wedge portion 36 need not be square. It also does not have to be a uniform polygon.

Möglich sind auch scharfkantige Rippen auf dem Umfang. Im Anschluß an den Keilabschnitt befindet sich außerhalb der Tuchrolle 10 ein nach außen vorspringender Ringabschnitt 38, der dem Ringabschnitt 28 am anderen Ende entspricht und als axialer Anschlag für die Tuchrolle dient. Außerhalb dieses Ringabschnitts 38 endet die Trägerwelle in einem kurzen Achszapfen 40.Also possible are sharp-edged ribs on the circumference. Following the wedge portion is outside the cloth roll 10, an outwardly projecting annular portion 38 which corresponds to the annular portion 28 at the other end and serves as an axial stop for the cloth roll. Outside this ring portion 38, the carrier shaft terminates in a short axle 40th

Auf der linken Seite in Fig. 2 ist erkennbar, dass das hülsenförmige Endstück 22 am Übergang zu dem vorspringenden Ringabschnitt 28 eine konische Erweiterung aufweist, die einer konischen Erweiterung der Wickelkernhülse 12 entspricht.On the left side in Fig. 2 it can be seen that the sleeve-shaped end piece 22 at the transition to the projecting ring portion 28 has a conical enlargement, which corresponds to a conical widening of the winding core sleeve 12.

Claims (8)

Trägerwelle für die Aufnahme der Wickelkernhülsen (12) von Tuchrollen (10), dadurch gekennzeichnet, dass sie an einem Ende ein sich zum Achsenende hin konisch erweiterndes Kopfstück (18) mit unrundem Querschnitt aufweist und dass am anderen Ende ein werkzeuglos lösbares Endstück (22) vorgesehen ist.Carrier shaft for receiving the winding core sleeves (12) of cloth rolls (10), characterized in that it has at one end to the axis end conically widening head piece (18) with non-circular cross-section and that at the other end a tool-free detachable end piece (22) is provided. Trägerwelle nach Anspruch 1, dadurch gekennzeichnet, dass der unrunde Querschnitt des Kopfstücks (18) ein Mehrkant-Querschnitt ist.Carrier shaft according to claim 1, characterized in that the non-circular cross-section of the head piece (18) is a polygonal cross-section. Trägerwelle nach Anspruch 1, dadurch gekennzeichnet, dass der unrunde Querschnitt des Kopfstücks (18) ein Querschnitt mit scharfkantigen Rippen auf dem Umfang ist.Carrier shaft according to claim 1, characterized in that the non-circular cross-section of the head piece (18) is a cross section with sharp-edged ribs on the circumference. Trägerwelle nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass an dem Kopfstück (18) ein nach außen vorspringender Ringabschnitt als axialer Anschlag für eine Tuchrolle (10) vorgesehen ist.Carrier shaft according to one of claims 1 to 3, characterized in that on the head piece (18) an outwardly projecting annular portion is provided as an axial stop for a cloth roll (10). Trägerwelle nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das werkzeuglos lösbare Endstück (22) mit einem Rastkugelmechanismus gehalten ist.Carrier shaft according to one of claims 1 to 4, characterized in that the tool-less releasable end piece (22) is held by a detent ball mechanism. Trägerwelle nach Anspruch 5, dadurch gekennzeichnet, dass das Endstück (22) hülsenförmig ausgebildet ist und auf einen endseitigen Schaftabschnitt (24) mit gegenüber der Trägerwelle verringertem Durchmesser aufgeschoben ist.Carrier shaft according to claim 5, characterized in that the end piece (22) is sleeve-shaped and is pushed onto an end-side shank portion (24) with respect to the support shaft reduced diameter. Trägerwelle nach Anspruch 6, dadurch gekennzeichnet, dass auf dem hülsenförmigen Endstück (22) ein radial vorspringender Ringabschnitt (28) als axialer Anschlag für eine Tuchrolle (10) vorgesehen ist.Carrier shaft according to claim 6, characterized in that on the sleeve-shaped end piece (22) a radially projecting annular portion (28) is provided as an axial stop for a cloth roll (10). Trägerwelle nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass der Rastkugelmechanismus mithilfe eines axial aus dem Schaftabschnitt (24) austretenden Druckstückes entriegelbar ist.Carrier shaft according to claim 6 or 7, characterized in that the locking ball mechanism can be unlocked by means of an axially exiting from the shaft portion (24) pressure piece.
EP20060007701 2005-04-22 2006-04-12 Shaft bore for engaging a sleeve of a blanket cylinder Expired - Fee Related EP1714785B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510018848 DE102005018848B4 (en) 2005-04-22 2005-04-22 Carrier shaft for receiving the cores of cloth rolls

Publications (2)

Publication Number Publication Date
EP1714785A1 true EP1714785A1 (en) 2006-10-25
EP1714785B1 EP1714785B1 (en) 2008-08-27

Family

ID=36782584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060007701 Expired - Fee Related EP1714785B1 (en) 2005-04-22 2006-04-12 Shaft bore for engaging a sleeve of a blanket cylinder

Country Status (2)

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EP (1) EP1714785B1 (en)
DE (2) DE102005018848B4 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1230190A (en) * 1916-05-03 1917-06-19 James W Mcindoe Impression-roll.
US3639959A (en) * 1970-03-23 1972-02-08 Armstrong Cork Co Glass fiber cord rubber roller
US20020040651A1 (en) * 1999-11-22 2002-04-11 Mceachern David A. Mounting printing plate cylinder having tapered bore to untapered rotatable drive shaft

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135892A1 (en) * 1991-10-31 1993-05-06 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De WINDING SHAFT WITH TENSIONING DEVICE FOR WRAPPING CARDBOARDS
DE69611631T2 (en) * 1995-05-01 2001-08-02 Baldwin Graphic System Inc Assembly mechanism for textile rolls for roller washing devices
DE10000557B4 (en) * 2000-01-08 2004-12-02 Baldwin Germany Gmbh Cleaning device for printing press cylinders
DE10160255A1 (en) * 2001-12-09 2003-06-18 Baldwin Germany Gmbh Device for cleaning rotary print machine cylinders comprises a gear wheel rack and pinion drive that enables the easy insertion and removal of a wash bar in its support device or removal of its component elements

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1230190A (en) * 1916-05-03 1917-06-19 James W Mcindoe Impression-roll.
US3639959A (en) * 1970-03-23 1972-02-08 Armstrong Cork Co Glass fiber cord rubber roller
US20020040651A1 (en) * 1999-11-22 2002-04-11 Mceachern David A. Mounting printing plate cylinder having tapered bore to untapered rotatable drive shaft

Also Published As

Publication number Publication date
DE102005018848B4 (en) 2007-12-13
DE502006001418D1 (en) 2008-10-09
EP1714785B1 (en) 2008-08-27
DE102005018848A1 (en) 2006-11-02

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