EP2014468A2 - Printing blanket support rail - Google Patents

Printing blanket support rail Download PDF

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Publication number
EP2014468A2
EP2014468A2 EP08006137A EP08006137A EP2014468A2 EP 2014468 A2 EP2014468 A2 EP 2014468A2 EP 08006137 A EP08006137 A EP 08006137A EP 08006137 A EP08006137 A EP 08006137A EP 2014468 A2 EP2014468 A2 EP 2014468A2
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EP
European Patent Office
Prior art keywords
blanket
retaining
rail
holding
teeth
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
EP08006137A
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German (de)
French (fr)
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EP2014468B1 (en
EP2014468A3 (en
Inventor
Frank Früh
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Frueh Schnellbautechnik GmbH
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Frueh Schnellbautechnik GmbH
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Application filed by Frueh Schnellbautechnik GmbH filed Critical Frueh Schnellbautechnik GmbH
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Publication of EP2014468A3 publication Critical patent/EP2014468A3/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers

Definitions

  • the invention relates to a blanket-holding rail for releasably securing a blanket to a printing unit roller, having two longitudinal shape holding legs which are interconnected via a back and between which the blanket is clamped and fixable by means of additional securing means such that the blanket against pulling across is secured to the rail longitudinal direction.
  • Such support rails are used to hold a blanket, which in turn can be attached via two usually support rails releasably attached to a printing-unit roller.
  • the blanket is loaded with forces acting transversely to the rail longitudinal direction of the retaining rail.
  • the retaining rail so can absorb lateral forces in the direction of withdrawal.
  • the retaining rail must be able to absorb lateral forces at a predefined height.
  • additional securing means are required, namely, according to the prior art, printing blanket and holding rail are still glued together.
  • the bonding of printing blanket and retaining rail is complicated and expensive and contains sources of error.
  • the adhesives or Adhesive mixed on site. If the mixing ratio is not correct, the required adhesive strength and thus the necessary cohesion between the holding rail and blanket is not achieved. Furthermore, the application of the adhesive is an additional step, in which case not inconsiderable time required for the necessary drying of the adhesive must be taken into account.
  • the object of the invention is therefore to provide a blanket support rail of the type mentioned above, which allows a faster and cheaper connection between the support rail and blanket with respect to the prior art at least the same connection quality.
  • the blanket-holding rail according to the invention is characterized in that the additional securing means are formed by a claw device which clings into the material of the blanket when clamping the blanket.
  • the backup is thus via the clamping action between the support rail and blanket and in addition to the clawing of the claw device in the material of the blanket.
  • the gluing between printing blanket and blanket-holding rail - the latter hereinafter referred to simply as a holding rail for the sake of simplicity - is not necessary. This saves a costly and time-consuming step.
  • the required holding force of the retaining rail is achieved by the claw of the claw device in the material of the blanket.
  • the claw device has a plurality of splint teeth arranged one behind the other in the longitudinal direction of the rail.
  • the claw teeth are inclined in the clamped state of the blanket in the manner of barbs to the back of the support rail.
  • the claw teeth preferably assume a position in which they protrude inward from the inner wall of the respective retaining limb in such a way that an obtuse angle between the claw teeth and the retaining limb portion between the free retaining limb end and the claw tooth approach and an acute angle between the Krallzähnen and the holding leg portion between the Kral leopard approach and the back part is formed.
  • Such aligned, barb-like Krallzähne also have the advantage that the blanket is pressed at the entrapment by means of Krallzähne even further into the holding rail, ie in the direction of the back.
  • both holding legs on Krallzähne wherein the Krallzähnen each opposite a flat portion on the other holding leg.
  • This flat lot can then serve as a kind of abutment on which blanket and claw elements can be supported, so that the aforementioned deformation of the claw elements can take place in the direction of the back part.
  • the Krallzähne are arranged in a plurality of longitudinally spaced rails longitudinally spaced groups of teeth.
  • the groups of teeth of a holding leg are arranged in the manner of a zipper with offset to the groups of teeth of the other holding leg.
  • Such an alternating arrangement enables a zipper-like engagement of the groups of teeth, which leads to a further increase in the holding force of the retaining rail.
  • the groups of teeth of a respective holding leg are arranged offset in height to each other.
  • each adjacent tooth groups are arranged offset in height to each other, while in the row after tooth groups are at the same height.
  • the Krallzähne on a triangular shape.
  • other geometric configurations are conceivable.
  • the claw teeth are integrally formed out of the material of the holding leg.
  • the Krallzähne are stamped out of the material of the holding leg by means of a suitable embossing tool.
  • the holding rail 11 is used for the purpose of a blanket 12 releasably attached to a printing unit roller, in particular a color transfer roller, which in turn transfers color to the platen roller.
  • a retaining rail 11 is attached to two opposite side edges of the blanket.
  • the support rails 11 are then clamped in a clamping device (not shown) on the relevant printing unit roller, about which the blanket 12 is then fixed to the roller.
  • the support rail 11 is made of steel material. It has two longitudinal shape having holding legs 13a, 13b, which are connected to each other via a back portion 14. As in particular in FIG. 4 illustrated, the support rail 11 in non-use position, ie if no blanket 12 is clamped, designed in cross section in approximately V-like.
  • the holding legs 13a, 13b each have the rear portion 14 opposite free side edges 15a, 15b, wherein the clear distance between the two free side edges by the V-shape is conditionally larger than the clear distance between the holding legs 13a, 13b in the back section 14th
  • securing means are necessary, which are formed by a claw device 16, which engages in the clamping of the blanket 12 in the material of the blanket 12.
  • the claw device 16 has a plurality of longitudinally successive rails arranged Krallzähne 17, which are formed out of the material of the holding legs 13a, 13b and bent inwards, so that from the inner wall of the respective holding leg 13a, 13b inward, ie in the direction of the opposite holding leg 13a, 13b, stand out.
  • the Krallzähne 17 have a pointed tooth tip 19, which supports the Einkrallung in the blanket material.
  • the Krallzähne 17 each have a triangular shape, preferably in the form of an isosceles, in particular approximately right triangle.
  • the claw teeth 17 are arranged in a plurality of tooth groups 18 lying one behind the other in the longitudinal direction of the rail.
  • the groups of teeth 18 of the one holding leg 13a are arranged in the manner of a zipper with offset to the tooth groups 18 of the other holding leg 13b.
  • the groups of teeth 18 are each a flat area on the other holding legs 13a, 13b opposite, which serves as a kind of abutment so that the Krallzähne 17 are pressed together with the blanket 12 when clamping on a solid surface, which increases the Einklemmrial.
  • the zipper-like arrangement of the tooth groups 18 thus leads to an increase in the holding force of the retaining rail eleventh
  • the groups of teeth of a respective holding leg 13a, 13b are arranged offset in height to each other, namely adjacent Tooth groups 18 are arranged offset in height to each other, while in the row after tooth groups 18 are at the same height.
  • the serially lying groups of teeth 18 of a respective holding leg 13a, 13b are therefore in turn not aligned, but aligned in an S-shaped one behind the other.
  • U-shaped incisions 20 are first formed on a flat sheet metal strip, for example by means of punching, which later specify the position of the tooth groups 18.
  • the incisions 20 are thus aligned on the respective holding leg 13a, 13b S-shaped one behind the other and additionally arranged with offset to the incisions of the respective other holding leg 13a, 13b.
  • the incisions 20 to the free side edges 15a, 15b of the respective holding leg 13a, 13b open.
  • the claw teeth 17 are now impressed in the material tabs cut free by means of the incisions 20 by means of a suitable embossing tool and pressed inwards.
  • the flat sheet metal strip is bent to a non-use position in cross-section V-like support rail 11.
  • the blanket 12 is first inserted into the retaining rail 11.
  • the two holding legs 13a, 13b are compressed by a suitable pressing tool, wherein the inside width between the opposite free side edges 15a, 15b of the holding legs 13a, 13b reduced.
  • the claw teeth 17 engage in the material of the blanket 12.
  • the claw teeth are bent towards the back 14, which causes the blanket 12 is pushed further into the retaining rail 11.
  • the claw teeth 17 are aligned such that the claw teeth are inclined at an obtuse angle to the leg portion between the side edges 15a, 15b and the Krallierean accountsn, while between the Krallzähnen 17 and the area between the back portion 14 and the Kralley approach an acute angle is formed.
  • the Krallzähne 17 therefore act in the manner of barbs, whereby the blanket is secured against pulling transversely to the rail longitudinal direction. The required holding force of the retaining rail is achieved.

Landscapes

  • Printing Plates And Materials Therefor (AREA)
  • Clamps And Clips (AREA)
  • Rotary Presses (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)

Abstract

The rail has retaining side pieces (13a, 13b) with a longitudinal shape, connected with each other by a rising section (14), and a printing blanket (12) clampable between the side pieces and is fixed by a locking unit such that the blanket is secured against pulling out transverse to a rail longitudinal direction. The locking unit is formed as a claw device (16), which is gripped into a material of the blanket during clamping the blanket. The claw device has claw teeth that are arranged one behind the other in the rail longitudinal direction.

Description

Die Erfindung betrifft eine Drucktuch-Halteschiene zur lösbaren Befestigung eines Drucktuches an einer Druckwerkswalze, mit zwei Längsgestalt aufweisenden Halteschenkeln, die über eine Rückenpartie miteinander verbunden sind und zwischen denen das Drucktuch einklemmbar und mittels zusätzlicher Sicherungsmittel derart fixierbar ist, dass das Drucktuch gegen ein Herausziehen quer zur Schienen-Längsrichtung gesichert ist.The invention relates to a blanket-holding rail for releasably securing a blanket to a printing unit roller, having two longitudinal shape holding legs which are interconnected via a back and between which the blanket is clamped and fixable by means of additional securing means such that the blanket against pulling across is secured to the rail longitudinal direction.

Derartige Halteschienen dienen zum Halten eines Drucktuches, das seinerseits über in der Regel zwei Halteschienen lösbar an einer Druckwerkswalze befestigt werden kann. Im Betrieb wird das Drucktuch mit Kräften belastet, die quer zur Schienen-Längsrichtung der Halteschiene wirken. Dadurch ist es notwendig, dass das Drucktuch gegen Herausziehen quer zur Schienen-Längsrichtung gesichert ist, die Halteschiene also Querkräfte in Herausziehrichtung aufnehmen kann. Bei einem gängigen Prüfverfahren muss die Halteschiene beispielsweise Querkräfte in vorher definierter Höhe aufnehmen können. Um dies zu erfüllen, bedarf es zusätzlicher Sicherungsmittel, nämlich gemäß dem Stand der Technik werden Drucktuch und Halteschiene noch miteinander verklebt. Die Verklebung von Drucktuch und Halteschiene ist jedoch aufwendig und teuer und birgt Fehlerquellen. In der Regel werden die Klebemittel beziehungsweise Kleber vor Ort angemischt. Stimmt das Mischungsverhältnis nicht, so wird die erforderliche Klebekraft und somit der notwendige Zusammenhalt zwischen Halteschiene und Drucktuch nicht erreicht. Ferner ist das Aufbringen des Klebers ein zusätzlicher Arbeitsschritt, wobei hier nicht unerheblicher Zeitaufwand für die notwendige Trocknung des Klebers berücksichtigt werden muss.Such support rails are used to hold a blanket, which in turn can be attached via two usually support rails releasably attached to a printing-unit roller. In operation, the blanket is loaded with forces acting transversely to the rail longitudinal direction of the retaining rail. This makes it necessary that the blanket is secured against pulling transversely to the rail longitudinal direction, the retaining rail so can absorb lateral forces in the direction of withdrawal. For example, in a common test method, the retaining rail must be able to absorb lateral forces at a predefined height. In order to fulfill this, additional securing means are required, namely, according to the prior art, printing blanket and holding rail are still glued together. However, the bonding of printing blanket and retaining rail is complicated and expensive and contains sources of error. In general, the adhesives or Adhesive mixed on site. If the mixing ratio is not correct, the required adhesive strength and thus the necessary cohesion between the holding rail and blanket is not achieved. Furthermore, the application of the adhesive is an additional step, in which case not inconsiderable time required for the necessary drying of the adhesive must be taken into account.

Aufgabe der Erfindung ist es daher, eine Drucktuch-Halteschiene der eingangs erwähnten Art zu schaffen, die eine schnellere und kostengünstigere Verbindung zwischen Halteschiene und Drucktuch bei gegenüber dem Stand der Technik zumindest gleicher Verbindungsqualität ermöglicht.The object of the invention is therefore to provide a blanket support rail of the type mentioned above, which allows a faster and cheaper connection between the support rail and blanket with respect to the prior art at least the same connection quality.

Diese Aufgabe wird durch eine Drucktuch-Halteschiene mit den Merkmalen des unabhängigen Anspruchs 1 gelöst. Weiterbildungen der Erfindung sind in den Unteransprüchen dargestellt.This object is achieved by a blanket-holding rail with the features of independent claim 1. Further developments of the invention are shown in the subclaims.

Die erfindungsgemäße Drucktuch-Halteschiene zeichnet sich dadurch aus, dass die zusätzlichen Sicherungsmittel von einer Kralleinrichtung gebildet werden, die sich beim Einklemmen des Drucktuchs in das Material des Drucktuchs einkrallt.The blanket-holding rail according to the invention is characterized in that the additional securing means are formed by a claw device which clings into the material of the blanket when clamping the blanket.

Die Sicherung erfolgt also über die Klemmwirkung zwischen Halteschiene und Drucktuch und zusätzlich über die Einkrallung der Kralleinrichtung in das Material des Drucktuches. Das Verkleben zwischen Drucktuch und Drucktuch-Halteschiene - Letztere im Folgenden der Einfachheit halber lediglich Halteschiene genannt - ist nicht notwendig. Dadurch wird ein kosten- und zeitintensiver Arbeitsschritt eingespart. Die erforderliche Haltekraft der Halteschiene wird durch die Verkrallung der Kralleinrichtung im Material des Drucktuches erreicht.The backup is thus via the clamping action between the support rail and blanket and in addition to the clawing of the claw device in the material of the blanket. The gluing between printing blanket and blanket-holding rail - the latter hereinafter referred to simply as a holding rail for the sake of simplicity - is not necessary. This saves a costly and time-consuming step. The required holding force of the retaining rail is achieved by the claw of the claw device in the material of the blanket.

Bei einer Weiterbildung der Erfindung weist die Kralleinrichtung mehrere in Schienen-Längsrichtung hintereinander angeordnete Krallzähne auf.In a development of the invention, the claw device has a plurality of splint teeth arranged one behind the other in the longitudinal direction of the rail.

In besonders bevorzugter Weise sind die Krallzähne im eingeklemmten Zustand des Drucktuches nach Art von Widerhaken zur Rückenpartie der Halteschiene hin geneigt. Bevorzugterweise nehmen die Krallzähne unabhängig von der Gebrauchslage der Halteschiene eine Stellung ein, in der sie von der Innenwand des jeweiligen Halteschenkels nach innen abstehen, und zwar derart, dass ein stumpfer Winkel zwischen den Krallenzähnen und dem Halteschenkelabschnitt zwischen dem freien Halteschenkel-Ende und dem Krallzahnansatz sowie ein spitzer Winkel zwischen den Krallzähnen und dem Halteschenkelabschnitt zwischen dem Krallzahnansatz und der Rückenpartie ausgebildet ist. Derartig ausgerichtete, widerhakenartige Krallzähne haben ferner den Vorteil, dass das Drucktuch bei dessen Einklemmung mittels der Krallzähne noch weiter in die Halteschiene, also in Richtung Rückenpartie, hinein gedrückt wird.In a particularly preferred manner, the claw teeth are inclined in the clamped state of the blanket in the manner of barbs to the back of the support rail. Irrespective of the position of use of the retaining rail, the claw teeth preferably assume a position in which they protrude inward from the inner wall of the respective retaining limb in such a way that an obtuse angle between the claw teeth and the retaining limb portion between the free retaining limb end and the claw tooth approach and an acute angle between the Krallzähnen and the holding leg portion between the Kralzahn approach and the back part is formed. Such aligned, barb-like Krallzähne also have the advantage that the blanket is pressed at the entrapment by means of Krallzähne even further into the holding rail, ie in the direction of the back.

Bei einer Weiterbildung der Erfindung weisen beide Halteschenkel Krallzähne auf, wobei den Krallzähnen jeweils eine ebene Partie am jeweils anderen Halteschenkel gegenüberliegt. Diese ebene Partie kann dann als eine Art Widerlager dienen, an dem sich Drucktuch und Krallelemente abstützen können, sodass die vorerwähnte Verformung der Krallelemente in Richtung der Rückenpartie stattfinden kann.In a further development of the invention, both holding legs on Krallzähne, wherein the Krallzähnen each opposite a flat portion on the other holding leg. This flat lot can then serve as a kind of abutment on which blanket and claw elements can be supported, so that the aforementioned deformation of the claw elements can take place in the direction of the back part.

Besonders bevorzugt sind die Krallzähne in mehreren in Schienen-Längsrichtung mit Abstand hintereinanderliegenden Zahngruppen angeordnet.Particularly preferably, the Krallzähne are arranged in a plurality of longitudinally spaced rails longitudinally spaced groups of teeth.

In besonders bevorzugter Weise sind die Zahngruppen des einen Halteschenkels nach Art eines Reißverschlusses mit Versatz zu den Zahngruppen des anderen Halteschenkels angeordnet. Eine derart alternierende Anordnung ermöglicht ein reißverschlussartiges Ineinandergreifen der Zahngruppen, was zu einer weiteren Erhöhung der Haltekraft der Halteschiene führt.In a particularly preferred manner, the groups of teeth of a holding leg are arranged in the manner of a zipper with offset to the groups of teeth of the other holding leg. Such an alternating arrangement enables a zipper-like engagement of the groups of teeth, which leads to a further increase in the holding force of the retaining rail.

Es ist möglich, dass die Zahngruppen eines jeweiligen Halteschenkels höhenversetzt zueinander angeordnet sind. Beispielsweise ist es möglich, dass jeweils benachbarte Zahngruppen höhenversetzt zueinander angeordnet sind, während in der Reihe übernächste Zahngruppen auf derselben Höhe liegen.It is possible that the groups of teeth of a respective holding leg are arranged offset in height to each other. For example, it is possible that each adjacent tooth groups are arranged offset in height to each other, while in the row after tooth groups are at the same height.

In bevorzugter Weise weisen die Krallzähne eine dreiecksartige Gestalt auf. Es sind jedoch auch andere geometrische Ausgestaltungen denkbar.Preferably, the Krallzähne on a triangular shape. However, other geometric configurations are conceivable.

In besonders bevorzugter Weise sind die Krallzähne einstückig aus dem Material der Halteschenkel herausgeformt. Vorzugsweise sind die Krallzähne aus dem Material der Halteschenkel mittels eines geeigneten Prägewerkzeuges herausgeprägt.In a particularly preferred manner, the claw teeth are integrally formed out of the material of the holding leg. Preferably, the Krallzähne are stamped out of the material of the holding leg by means of a suitable embossing tool.

Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher erläutert. In der Zeichnung zeigen:

Figur 1
eine perspektivische Teilansicht eines bevorzugten Ausführungsbeispiels der Drucktuch-Halteschiene mit eingeklemmtem Drucktuch,
Figur 2
eine Teil-Seitenansicht der Halteschiene von Figur 1,
Figur 3
eine Teil-Unteransicht der Halteschiene von Figur 1 und
Figur 4
einen vergrößerten Querschnitt durch die Halteschiene von Figur 1 entlang der Linie IV-IV von Figur 1.
A preferred embodiment of the invention is illustrated in the drawing and will be explained in more detail below. In the drawing show:
FIG. 1
a partial perspective view of a preferred embodiment of the blanket-holding rail with clamped blanket,
FIG. 2
a partial side view of the retaining rail of FIG. 1 .
FIG. 3
a partial bottom view of the retaining rail of FIG. 1 and
FIG. 4
an enlarged cross section through the retaining rail of FIG. 1 along the line IV-IV of FIG. 1 ,

Die Figuren 1 bis 4 zeigen ein bevorzugtes Ausführungsbeispiel der erfindungsgemäßen Drucktuch-Halteschiene 11. Die Halteschiene 11 dient zu dem Zweck, ein Drucktuch 12 lösbar an einer Druckwerkswalze, insbesondere einer Farbübergabewalze, die ihrerseits Farbe auf die Druckwalze überträgt, zu befestigen. Hierzu wird an zwei gegenüberliegenden Seitenrändern des Drucktuches jeweils eine derartige Halteschiene 11 befestigt. Die Halteschienen 11 werden dann in eine Spannvorrichtung (nicht dargestellt) an der betreffenden Druckwerkswalze eingespannt, worüber das Drucktuch 12 dann an der Walze festgelegt ist.The FIGS. 1 to 4 The holding rail 11 is used for the purpose of a blanket 12 releasably attached to a printing unit roller, in particular a color transfer roller, which in turn transfers color to the platen roller. For this purpose, in each case such a retaining rail 11 is attached to two opposite side edges of the blanket. The support rails 11 are then clamped in a clamping device (not shown) on the relevant printing unit roller, about which the blanket 12 is then fixed to the roller.

Die Halteschiene 11 besteht aus Stahlmaterial. Sie besitzt zwei Längsgestalt aufweisende Halteschenkel 13a, 13b, die über eine Rückenpartie 14 miteinander verbunden sind. Wie insbesondere in Figur 4 dargestellt, ist die Halteschiene 11 in Nicht-Gebrauchslage, d. h. falls kein Drucktuch 12 eingeklemmt ist, im Querschnitt in etwa V-artig ausgestaltet.The support rail 11 is made of steel material. It has two longitudinal shape having holding legs 13a, 13b, which are connected to each other via a back portion 14. As in particular in FIG. 4 illustrated, the support rail 11 in non-use position, ie if no blanket 12 is clamped, designed in cross section in approximately V-like.

Die Halteschenkel 13a, 13b besitzen jeweils der Rückenpartie 14 gegenüberliegende freie Seitenränder 15a, 15b, wobei der lichte Abstand zwischen den beiden freien Seitenrändern durch die V-Form bedingt größer ist als der lichte Abstand zwischen den Halteschenkeln 13a, 13b im Bereich der Rückenpartie 14.The holding legs 13a, 13b each have the rear portion 14 opposite free side edges 15a, 15b, wherein the clear distance between the two free side edges by the V-shape is conditionally larger than the clear distance between the holding legs 13a, 13b in the back section 14th

Um das Drucktuch 12 gegen Herausziehen quer zur Schienen-Längsrichtung zu sichern, sind zusätzliche Sicherungsmittel notwendig, die von einer Kralleinrichtung 16 gebildet werden, die sich beim Einklemmen des Drucktuchs 12 in das Material des Drucktuchs 12 einkrallt.In order to secure the blanket 12 against pulling transversely to the longitudinal direction of the rail, additional securing means are necessary, which are formed by a claw device 16, which engages in the clamping of the blanket 12 in the material of the blanket 12.

Die Kralleinrichtung 16 besitzt mehrere in Schienen-Längsrichtung hintereinander angeordnete Krallzähne 17, die aus dem Material der Halteschenkel 13a, 13b herausgeformt und nach innen umgebogen sind, sodass diese von der Innenwandung des jeweiligen Halteschenkels 13a, 13b nach innen, also in Richtung des gegenüberliegenden Halteschenkels 13a, 13b, abstehen. Die Krallzähne 17 besitzen eine spitzige Zahnspitze 19, die die Einkrallung ins Drucktuch-Material unterstützt. Die Krallzähne 17 besitzen jeweils eine dreiecksartige Gestalt, vorzugsweise in Form eines gleichschenkligen, insbesondere in etwa rechtwinkligen Dreiecks.The claw device 16 has a plurality of longitudinally successive rails arranged Krallzähne 17, which are formed out of the material of the holding legs 13a, 13b and bent inwards, so that from the inner wall of the respective holding leg 13a, 13b inward, ie in the direction of the opposite holding leg 13a, 13b, stand out. The Krallzähne 17 have a pointed tooth tip 19, which supports the Einkrallung in the blanket material. The Krallzähne 17 each have a triangular shape, preferably in the form of an isosceles, in particular approximately right triangle.

Die Krallzähne 17 sind in mehreren in Schienen-Längsrichtung mit Abstand hintereinander liegenden Zahngruppen 18 angeordnet. Dabei sind die Zahngruppen 18 des einen Halteschenkels 13a nach Art eines Reißverschlusses mit Versatz zu den Zahngruppen 18 des anderen Halteschenkels 13b angeordnet. Den Zahngruppen 18 liegt jeweils ein ebener Bereich am anderen Halteschenkel 13a, 13b gegenüber, der als eine Art Widerlager dient, sodass die Krallzähne 17 mitsamt dem Drucktuch 12 beim Einklemmen auf eine feste Fläche gedrückt werden, was die Einklemmwirkung erhöht. Die reißverschlussartige Anordnung der Zahngruppen 18 führt also zu einer Erhöhung der Haltekraft der Halteschiene 11.The claw teeth 17 are arranged in a plurality of tooth groups 18 lying one behind the other in the longitudinal direction of the rail. In this case, the groups of teeth 18 of the one holding leg 13a are arranged in the manner of a zipper with offset to the tooth groups 18 of the other holding leg 13b. The groups of teeth 18 are each a flat area on the other holding legs 13a, 13b opposite, which serves as a kind of abutment so that the Krallzähne 17 are pressed together with the blanket 12 when clamping on a solid surface, which increases the Einklemmwirkung. The zipper-like arrangement of the tooth groups 18 thus leads to an increase in the holding force of the retaining rail eleventh

Ferner sind die Zahngruppen eines jeweiligen Halteschenkels 13a, 13b höhenversetzt zueinander angeordnet, nämlich benachbarte Zahngruppen 18 sind höhenversetzt zueinander angeordnet, während in der Reihe übernächste Zahngruppen 18 auf derselben Höhe liegen. Die in Reihe liegenden Zahngruppen 18 eines jeweiligen Halteschenkels 13a, 13b sind also ihrerseits nicht fluchtend, sondern S-förmig hintereinander ausgerichtet.Further, the groups of teeth of a respective holding leg 13a, 13b are arranged offset in height to each other, namely adjacent Tooth groups 18 are arranged offset in height to each other, while in the row after tooth groups 18 are at the same height. The serially lying groups of teeth 18 of a respective holding leg 13a, 13b are therefore in turn not aligned, but aligned in an S-shaped one behind the other.

Bei der Herstellung der Halteschiene 11 werden zunächst an einem ebenen Blechstreifen U-förmige Einschnitte 20 beispielsweise mittels Ausstanzens ausgebildet, die später die Lage der Zahngruppen 18 vorgeben. Die Einschnitte 20 sind also am jeweiligen Halteschenkel 13a, 13b S-förmig hintereinander ausgerichtet und zusätzlich mit Versatz zu den Einschnitten des jeweils anderen Halteschenkels 13a, 13b angeordnet. Dabei sind die Einschnitte 20 zu den freien Seitenrändern 15a, 15b der jeweiligen Halteschenkel 13a, 13b offen. Als nächstes werden nun die Krallzähne 17 in den mittels der Einschnitte 20 freigeschnittenen Materiallappen mittels eines geeigneten Prägewerkzeugs eingeprägt und nach innen gedrückt. Schließlich wird der flache Blechstreifen zu einer in Nicht-Gebrauchslage im Querschnitt V-artigen Halteschiene 11 gebogen.In the production of the retaining rail 11, U-shaped incisions 20 are first formed on a flat sheet metal strip, for example by means of punching, which later specify the position of the tooth groups 18. The incisions 20 are thus aligned on the respective holding leg 13a, 13b S-shaped one behind the other and additionally arranged with offset to the incisions of the respective other holding leg 13a, 13b. The incisions 20 to the free side edges 15a, 15b of the respective holding leg 13a, 13b open. Next, the claw teeth 17 are now impressed in the material tabs cut free by means of the incisions 20 by means of a suitable embossing tool and pressed inwards. Finally, the flat sheet metal strip is bent to a non-use position in cross-section V-like support rail 11.

Zur Befestigung wird das Drucktuch 12 zunächst in die Halteschiene 11 eingeführt. Als nächstes werden die beiden Halteschenkel 13a, 13b durch ein geeignetes Drückwerkzeug zusammengedrückt, wobei sich die lichte Weite zwischen den einander gegenüberliegenden freien Seitenrändern 15a, 15b der Halteschenkel 13a, 13b verringert. Beim Zusammendrücken der Halteschenkel 13a, 13b krallen sich die Krallzähne 17 in das Material des Drucktuchs 12 ein. Dabei werden die Krallzähne zur Rückenpartie 14 hin gebogen, was dazu führt, dass das Drucktuch 12 noch weiter in die Halteschiene 11 hineingedrückt wird.For attachment, the blanket 12 is first inserted into the retaining rail 11. Next, the two holding legs 13a, 13b are compressed by a suitable pressing tool, wherein the inside width between the opposite free side edges 15a, 15b of the holding legs 13a, 13b reduced. When the retaining legs 13a, 13b are compressed, the claw teeth 17 engage in the material of the blanket 12. The claw teeth are bent towards the back 14, which causes the blanket 12 is pushed further into the retaining rail 11.

In der Gebrauchslage der Halteschiene 11 sind die Krallzähne 17 derart ausgerichtet, dass die Krallzähne in einem stumpfen Winkel zu dem Schenkelabschnitt zwischen den Seitenrändern 15a, 15b und den Krallzahnansätzen geneigt sind, während zwischen den Krallzähnen 17 und dem Bereich zwischen der Rückenpartie 14 und dem Krallzahnansatz ein spitzer Winkel ausgebildet ist. Die Krallzähne 17 wirken daher nach Art von Widerhaken, wodurch das Drucktuch gegen Herausziehen quer zur Schienen-Längsrichtung gesichert ist. Die erforderliche Haltekraft der Halteschiene wird erreicht.In the position of use of the support rail 11, the claw teeth 17 are aligned such that the claw teeth are inclined at an obtuse angle to the leg portion between the side edges 15a, 15b and the Krallzahnansätzen, while between the Krallzähnen 17 and the area between the back portion 14 and the Kralley approach an acute angle is formed. The Krallzähne 17 therefore act in the manner of barbs, whereby the blanket is secured against pulling transversely to the rail longitudinal direction. The required holding force of the retaining rail is achieved.

Letztendlich kann dadurch auf einen teuren und zeitaufwendigen Klebevorgang zwischen Drucktuch 12 und Halteschiene 11 verzichtet werden.Ultimately, this can be dispensed with an expensive and time-consuming bonding process between blanket 12 and retaining rail 11.

Claims (10)

Drucktuch-Halteschiene zur lösbaren Befestigung eines Drucktuches (12) an einer Druckwerkswalze, mit zwei Längsgestalt aufweisenden Halteschenkeln (13a, 13b), die über eine Rückenpartie (14) miteinander verbunden sind und zwischen denen das Drucktuch (12) einklemmbar und mittels zusätzlicher Sicherungsmittel derart fixierbar ist, dass das Drucktuch (12) gegen ein Herausziehen quer zur Schienen-Längsrichtung gesichert ist, dadurch gekennzeichnet, dass die zusätzlichen Sicherungsmittel von einer Kralleinrichtung (16) gebildet werden, die sich beim Einklemmen des Drucktuches (12) in das Material des Drucktuches (12) einkrallt.Blanket-holding rail for releasably securing a printing blanket (12) on a printing unit, with two holding legs (13a, 13b), which are connected via a back portion (14) and between which the blanket (12) clamped and by means of additional securing means can be fixed, that the blanket (12) is secured against pulling transversely to the longitudinal direction of the rail, characterized in that the additional securing means by a claw device (16) are formed when clamping the blanket (12) in the material of the blanket (12) einkrallt. Halteschiene nach Anspruch 1, dadurch gekennzeichnet, dass die Kralleinrichtung (16) mehrere in Schienen-Längsrichtung hintereinander angeordnete Krallzähne (17) aufweist.Retaining rail according to claim 1, characterized in that the claw device (16) has a plurality of splint teeth (17) arranged one behind the other in the longitudinal direction of the rail. Halteschiene nach Anspruch 2, dadurch gekennzeichnet, dass die Krallzähne (17) im eingeklemmten Zustand des Drucktuches (12) nach Art von Widerhaken zur Rückenpartie (14) der Halteschiene (11) hin geneigt sind.Retaining rail according to claim 2, characterized in that the claw teeth (17) in the clamped state of the printing blanket (12) are inclined in the manner of barbs to the back part (14) of the retaining rail (11). Halteschiene nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass beide Halteschenkel (13a, 13b) Krallzähne (17) aufweisen, wobei den Krallzähnen (17) jeweils eine ebene Partie am jeweils anderen Halteschenkel (13a, 13) gegenüberliegt.Retaining rail according to claim 2 or 3, characterized in that both retaining legs (13a, 13b) Krallzähne (17), wherein the Krallzähnen (17) in each case a flat portion opposite to the respective other retaining legs (13a, 13). Halteschiene nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Krallzähne (17) in mehreren, in Schienen-Längsrichtung mit Abstand hintereinander liegenden Zahngruppen (18) angeordnet sind.Retaining rail according to one of Claims 2 to 4, characterized in that the claw teeth (17) are arranged in a plurality of tooth groups (18) arranged one behind the other in the longitudinal direction of the rail. Halteschiene nach Anspruch 5, dadurch gekennzeichnet, dass die Zahngruppen (18) des einen Halteschenkels (13a) nach Art eines Reißverschlusses mit Versatz zu den Zahngruppen (18) des anderen Halteschenkels (13b) angeordnet sind.Retaining rail according to claim 5, characterized in that the groups of teeth (18) of the one holding leg (13a) are arranged in the manner of a zipper with offset to the tooth groups (18) of the other holding leg (13b). Halteschiene nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Zahngruppen (18) eines jeweiligen Halteschenkels (13a, 13b) höhenversetzt zueinander angeordnet sind.Retaining rail according to claim 5 or 6, characterized in that the tooth groups (18) of a respective retaining leg (13a, 13b) are arranged offset in height relative to one another. Halteschiene nach Anspruch 7, dadurch gekennzeichnet, dass jeweils benachbarte Zahngruppen (18) höhenversetzt zueinander angeordnet sind, während in der Reihe übernächste Zahngruppen (18) auf derselben Höhe liegen.Retaining rail according to claim 7, characterized in that respective adjacent tooth groups (18) are offset in height from one another, while in the row after tooth groups (18) are at the same height. Halteschiene nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass die Krallzähne (17) eine dreiecksartige Gestalt aufweisen.Retaining rail according to one of claims 2 to 8, characterized in that the Krallzähne (17) have a triangular shape. Halteschiene nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, dass die Krallzähne (17) einstückig aus dem Material der Halteschenkel (13a, 13b) herausgeformt, insbesondere herausgeprägt sind.Retaining rail according to one of claims 2 to 9, characterized in that the claw teeth (17) are integrally formed out of the material of the retaining legs (13a, 13b), in particular stamped out.
EP08006137A 2007-07-09 2008-03-28 Printing blanket support rail Not-in-force EP2014468B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202007010077U DE202007010077U1 (en) 2007-07-09 2007-07-09 Blanket holding rail

Publications (3)

Publication Number Publication Date
EP2014468A2 true EP2014468A2 (en) 2009-01-14
EP2014468A3 EP2014468A3 (en) 2010-01-06
EP2014468B1 EP2014468B1 (en) 2011-07-27

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Application Number Title Priority Date Filing Date
EP08006137A Not-in-force EP2014468B1 (en) 2007-07-09 2008-03-28 Printing blanket support rail

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US (1) US7677173B2 (en)
EP (1) EP2014468B1 (en)
AT (1) ATE517748T1 (en)
DE (1) DE202007010077U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2361763A1 (en) * 2010-02-18 2011-08-31 PGI GmbH Printing blanket holding bar

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883940A (en) 1973-04-09 1975-05-20 Dayco Corp Apparatus for fastening a holding bar on a printing blanket
EP1738905A2 (en) 2005-06-28 2007-01-03 Koenig & Bauer Aktiengesellschaft Cylinder of a rotary printing machine with a slit along the axis of the cylinder

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Publication number Priority date Publication date Assignee Title
US3296673A (en) 1964-05-04 1967-01-10 Alven D Kirkpatrick Printing blanket edging and anchoring means
US3489085A (en) * 1967-08-11 1970-01-13 David M Co Printing blanket edging and anchoring means
US3675573A (en) * 1970-09-01 1972-07-11 Roberts & Porter Inc Blanket bar and adapter bar assembly for printing blanket
FR2279550A1 (en) 1974-07-22 1976-02-20 Denis Andre V-section printing plate end strip - has gripping devices on arms working together to secure plate on squeezing
DE7820773U1 (en) 1978-07-11 1978-10-26 Georg Gernhard Druckbedarf Ohg, 6000 Frankfurt RUBBER CLOTH RAIL
DE3327972A1 (en) 1983-08-03 1985-02-14 Fa. Georg Gernhard, 6000 Frankfurt Rubber blanket
GB2172949B (en) 1985-03-28 1988-11-02 Osvaldo Scarioni Holding bar and strip assembly
USH440H (en) 1986-06-30 1988-03-01 W. R. Grace & Co. Blanket bar for narrow gap cylinders
DE19924786B4 (en) * 1999-05-29 2004-11-04 Koenig & Bauer Ag Device for attaching a flexible plate to a cylinder of a rotary printing press
US6386103B1 (en) * 1999-10-22 2002-05-14 Heidelberger Druckmaschinen Ag Blanket tube removal device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3883940A (en) 1973-04-09 1975-05-20 Dayco Corp Apparatus for fastening a holding bar on a printing blanket
EP1738905A2 (en) 2005-06-28 2007-01-03 Koenig & Bauer Aktiengesellschaft Cylinder of a rotary printing machine with a slit along the axis of the cylinder

Also Published As

Publication number Publication date
EP2014468B1 (en) 2011-07-27
EP2014468A3 (en) 2010-01-06
US7677173B2 (en) 2010-03-16
DE202007010077U1 (en) 2007-09-20
US20090013887A1 (en) 2009-01-15
ATE517748T1 (en) 2011-08-15

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