EP1314555B1 - Sheet feeding device with a guiding surface in a printing machine - Google Patents

Sheet feeding device with a guiding surface in a printing machine Download PDF

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Publication number
EP1314555B1
EP1314555B1 EP02025136A EP02025136A EP1314555B1 EP 1314555 B1 EP1314555 B1 EP 1314555B1 EP 02025136 A EP02025136 A EP 02025136A EP 02025136 A EP02025136 A EP 02025136A EP 1314555 B1 EP1314555 B1 EP 1314555B1
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EP
European Patent Office
Prior art keywords
sheet
control device
cylinder
sheet control
guiding
Prior art date
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Revoked
Application number
EP02025136A
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German (de)
French (fr)
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EP1314555A1 (en
Inventor
Hendrikus Beaumont
Bernhard Graziel
Frank Seidel
Peter Dr. Wulf
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Manroland AG
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MAN Roland Druckmaschinen AG
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Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1314555A1 publication Critical patent/EP1314555A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/102—Combinations of transfer drums and grippers with pneumatic means

Definitions

  • the invention relates to a sheet guiding device with a guide surface in a printing press according to the preamble of claim 1.
  • a sheet guide of this kind is for sheet guiding cylinder DE 44 30 105 A1 to support the sheet transport in the immediate vicinity of a sheet-guiding transfer cylinder and a transfer cylinder downstream of the sheet-guiding printing cylinder known.
  • Below the transfer area (tangent point of transfer cylinder and impression cylinder) is a direct negative pressure between the sheet and pressure cylinder generating guide is arranged.
  • the guide specifically contains a sheet smoother with at least one pneumatically operated squeegee.
  • a pneumatically or mechanically operable sheet guiding device is assigned to the impression cylinder in front of the printing zone.
  • a sheet guiding device is made DE 298 17 317 U1 as a comb-shaped sheet guiding device between the transfer area of two gripper systems of sheet guiding cylinders and an adjacent sheet guiding device known.
  • the comb-shaped sheet guide device has a guide surface, which is aligned with the guide surface of the adjacent sheet guiding device.
  • the comb-shaped sheet guiding device is operable without Blas Kunststoffunterstützung.
  • the comb-shaped sheet guiding device is arranged downstream of a transfer area of two gripper systems in the conveying direction of the printing material in the sheet exit or upstream of a transfer area of two gripper systems in the conveying direction of the printing material in the sheet.
  • the invention has for its object to provide a sheet guiding device of the type described above, which ensures in particular on a printing cylinder with associated printing / coating the smooth support of a sheet already from one of these pressure / Lackierzone upstream transfer area and improved bowing along a guide surface the sheet guiding allowed in the arch entrance before the transfer area.
  • the invention relates to a comb-shaped sheet guide with a pneumatically actuated guide surface, which is associated with the transfer area of two gripper systems.
  • the gripper systems are arranged on a respective sheet guiding cylinder and / or a circulating chain system.
  • a first advantage of the sheet guiding device is that, for example, a sheet guided by a transfer cylinder in the gripper closure is transferred on its predetermined conveying plane to the gripper system of a downstream printing cylinder.
  • a guided by a gripper system of a circulating chain system arc on its predetermined conveying plane to a Gripper system passed to a downstream pressure cylinder.
  • the sheet guiding device according to the invention is designed as a comb-shaped sheet guiding device and whose prongs - without causing damage in particular in the region of the sheet trailing edge - protrude as close as possible to the transfer region of two gripper systems.
  • the comb-shaped sheet guiding device generates a suction air flow by means of a switchable, preferably controllable pneumatic system.
  • the suction air flow forms below the transfer region of two gripper systems a negative pressure area, so that the sheet, preferably from the tangent point, rests smoothly on the printing cylinder.
  • the air cushion located between the sheet and the lateral surface of the printing cylinder and the ambient air below the transfer area is noticeably reduced.
  • An additional reduction of ambient air can be achieved by the tines of the comb-shaped sheet guiding device upstream of a suction in the conveying direction of the sheet material.
  • the squeegee is integrated in an upstream sheet guiding or at the end of this sheet guiding device (in the conveying direction in front of the comb-shaped sheet guide) can be arranged.
  • a further advantage is that in a by print zone (pressure cylinder and blanket cylinder or forme cylinder) and transfer area of two gripper systems (tangent point of example sheet-guiding cylinders) arc defined before the printing / coating of the printing cylinder pneumatically or mechanically operable sheet guiding device is associated with the printing cylinder.
  • pneumatically or mechanically operable sheet guiding device is associated with the printing cylinder.
  • a sheet-fed rotary printing machine consists of several printing units 1 and at least one coating unit 8, which are arranged in the conveying direction 12 in a row construction.
  • the coating unit 8 is in the conveying direction 12, a boom 9 with rotating chain systems 14, which transport the sheet 20 in the gripper closure and store it on a delivery pile, downstream.
  • Each printing unit 1 is formed of a single-sized plate cylinder 2, a single-sized blanket cylinder 3 and a double-sized impression cylinder 4.
  • Each plate cylinder 2 is assigned an inking unit and possibly a dampening unit.
  • the coating unit 8 has a metering system 7, for example a chambered doctor blade with a screened application roller, which is in functional connection with a forme cylinder 6.
  • the form cylinder 6 is in turn assigned a pressure cylinder 4.
  • Form cylinder 6 and blanket cylinder 3 form with the associated sheet-guiding printing cylinders 4 each have a printing / coating 16.
  • a transfer cylinder 5 can be substituted by a bow-guiding turning device 10 according to the principle of the single-drum or three-drum turn.
  • the sheet-guiding cylinders 4, 5, the turning device 10 and the chain systems 14 have u.a. Gripper systems 30, 31 with transfer areas 19 for the sheet transport in the conveying direction 12 on.
  • the sheet-guiding transfer cylinders 5, turning devices 10 and the chain systems 14 are associated sheet guiding devices 11, preferably in a modular arrangement, adjacent to a predetermined distance to the predetermined conveying plane.
  • the sheet guiding devices 11 are designed as air supply boxes (flow channels) for guiding the sheets 20 in the predetermined conveying plane with a width and length of a plurality of nozzles 13 having, otherwise closed and the sheet 20 facing guide surface 21.
  • the nozzles 13 are, for example, openings operable with blown air or suction air, e.g. Holes, slots, etc., or are operated on the principle of the aerodynamic paradox.
  • the air supply boxes each have a first pneumatic system 22, which is formed for example by reversible (blown air / suction air) fan.
  • a comb-shaped sheet guiding device 15 is arranged at the end, as close as possible in front of the transfer area 19.
  • the comb-shaped sheet guiding device 15 has an air supply box, which is operable with a second pneumatic system 29 (FIG. 4).
  • a second pneumatic system 29 FIG. 4
  • the tines 17 are arranged at a defined distance from each other and thus form free spaces 18 through which the gripper systems of the downstream printing cylinder 4 (which in this area still no sheet 20) can go through.
  • the prongs 17 are coupled via the air supply box (sheet guiding device 15) to the second pneumatic system 29 and have first and second openings 23, 24.
  • the comb-shaped sheet guiding device 15 with openings 23, 24 and prongs 17 on the channel side with the air supply box (flow channel) of the sheet guiding device 11 is coupled, so that the air supply of the sheet guiding devices 11, 15 with the first pneumatic system 22 (alternatively the second pneumatic system 29) is jointly feasible.
  • the comb-shaped sheet guiding device 15 has a guide surface 21 which is arranged in alignment with the guide surface 21 of the sheet guiding device 11 in the direction of curvature thereof.
  • the sheet guiding devices 11, 15 are modular (for example, mounted on impact) or arranged integrated into a component executable to provide a continuous guide surface 21.
  • the tines 17 with openings 23, 24 fulfill two functions.
  • the prongs 17 are formed with the second openings 24, preferably bent at an over the format width continuous edge or curvature (line 25), from the plane of the guide surface 21 toward the downstream sheet-guiding printing cylinder 4, so that the second Openings 24 are directed substantially to the transfer area 19.
  • additional openings 32 can be integrated into the tines 17 at the rear in the direction of the subsequent impression cylinder 4 (FIG. 4) in order to evacuate or reduce the drag flow transported by the pressure cylinder 4 and the ambient air still remaining below the transfer region 19.
  • the openings 24 and / or the openings 32 are preferably larger than the openings 23 are formed.
  • each printing cylinder 4 is assigned a pneumatically actuated and / or a mechanically acting sheet guiding device 27 adjacent thereto.
  • the sheet guiding device 27 is preferably designed as Druckzylinderblasvortechnik which, for example, according to DE 197 53 089 A1 is executable.
  • one or more blowpipes can be arranged, which extend in Zylinderachsplatz at least over the format width and whose Blas Kunststoffströmung are directed at least on the guided from the sheet-guiding printing cylinder 4 sheet 20.
  • a suction strip 26 can additionally be integrated into the guide surface 21 in the sheet exit at the end of the sheet guiding device 11.
  • the squeegee 26 is assigned to the sheet guide 11, alternatively, an assignment to the comb-shaped sheet guide 15 can be realized.
  • the squeegee 26 extends over the max. Format width of the guide surface 21 and is preferably coupled to a separate suction air source 28.
  • the squeegee 26 can also be coupled to the pneumatic system 29 of the tines 17 (comb-shaped sheet guiding device 15).
  • the squeegee 26 is straight, i. arranged at right angles or obliquely to the conveying direction 12 over the format width.
  • an arrow-shaped arrangement of the squeegee 26 can be realized in order to sweep the sheet 20 in the conveying direction 12.
  • the squeegee 26 causes in the direction transfer cylinder 5 a negative pressure between the sheet 20 and the guide surface 21 by the ambient air by means of Saugluftmaschine 28 (or when coupled by means of pneumatic system 29) is evacuated. In addition, the ambient air still present in the area of the tines 17 and below the transfer area 19 is also evacuated.
  • the squeegee 26 is integrated in a sheet smoother arranged in the guide surface 21, so that in addition to the evacuation of ambient air, the sheet 20 is additionally pulled over the wavy curved contour.
  • the in the gripper closure (sheet-guiding cylinder 4 or 5) fixed sheet 20 is subject to the deconstruction and is stretched contrary to the conveying direction 12.
  • the mode of action is as follows: The sheet 20 guided in the gripper closure (gripper system 31) by the rotating transfer cylinder 5 is transferred in the transfer region 19 to the gripper system 30 of the rotating, downstream impression cylinder 4.
  • a suction air flow is generated below the transfer area 19 in the arched at least at the openings 23, 24, in particular at the openings 24, the prongs 17, so that a negative pressure area between the sheet 20 and the sheet-guiding cylinders 4, 5 is present.
  • the sheet 20 is guided in the direction of the comb-shaped sheet guiding device 15 and then smoothly guided on the sheet guiding cylinder 4 already from the transfer area 19.
  • a suction air flow is generated by the suction strip 26 arranged upstream of the tines 17 in the conveying direction 12 so that there is a negative pressure area between the sheet 20 guided on the transfer cylinder 5 and the guide surface 21 of the adjacent sheet guiding device 11.
  • the sheet 20 is pulled in the direction of the guide surface 21 and guided in the conveying direction 12 floating.
  • the suction strip 26 is additionally integrated in a sheet smoother, so that the sheet 20 is additionally stretched counter to its conveying direction 12.
  • the sheet 20 guided in the gripper closure on the printing cylinder 4 is guided in the area defined by transfer region 19 and printing / coating zone 16 by means of a sheet guiding device 27.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Discharge By Other Means (AREA)

Abstract

The sheet guide includes a gripper system and transfer area . Underneath the transfer area (19) is a comb-like sheet guide device (15) having several spaced tines and an air supply box and coupled to a pneumatic system. The tines have first and second openings coupled with air supply box with the first openings integrated in the guide face (21) which faces the sheets and the second openings angled from the plane of the guide face towards a printing cylinder (4) behind so that the second openings are directed to the transfer area.

Description

Die Erfindung betrifft eine Bogenleiteinrichtung mit einer Führungsfläche in einer Druckmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a sheet guiding device with a guide surface in a printing press according to the preamble of claim 1.

[Stand der Technik][State of the art]

Eine Bogenleiteinrichtung dieser Art ist für Bogenführungszylinder aus DE 44 30 105 A1 zur Unterstützung des Bogentransportes in unmittelbarer Nähe eines bogenführenden Transferzylinders und eines dem Transferzylinder nachgeordneten bogenführenden Druckzylinders bekannt. Unterhalb des Übergabebereiches (Tangentenpunkt von Transferzylinder und Druckzylinder) ist eine einen direkten Unterdruck zwischen Bogen und Druckzylinder erzeugende Leiteinrichtung angeordnet. Die Leiteinrichtung enthält speziell einen Bogenglätter mit wenigstens einer pneumatisch betreibbaren Saugleiste. In einem durch eine Druckzone, gebildet aus Druckzylinder und Gummituchzylinder, und einen Übergabebereich, gebildet aus Transferzylinder und Druckzylinder, definierten Kreisbogen ist vor der Druckzone eine pneumatisch oder mechanisch betreibbare Bogenführungseinrichtung dem Druckzylinder zugeordnet.A sheet guide of this kind is for sheet guiding cylinder DE 44 30 105 A1 to support the sheet transport in the immediate vicinity of a sheet-guiding transfer cylinder and a transfer cylinder downstream of the sheet-guiding printing cylinder known. Below the transfer area (tangent point of transfer cylinder and impression cylinder) is a direct negative pressure between the sheet and pressure cylinder generating guide is arranged. The guide specifically contains a sheet smoother with at least one pneumatically operated squeegee. In a circular arc defined by a pressure zone, formed from pressure cylinder and blanket cylinder, and a transfer region, formed from transfer cylinder and impression cylinder, a pneumatically or mechanically operable sheet guiding device is assigned to the impression cylinder in front of the printing zone.

Weiterhin ist eine Bogenleiteinrichtung aus DE 298 17 317 U1 als kammförmige Bogenführungseinrichtung zwischen dem Übergabebereich zweier Greifersysteme von Bogenführungszylindern und einer benachbarten Bogenführungseinrichtung bekannt. Die kammförmige Bogenführungseinrichtung weist eine Führungsfläche auf, welche mit der Führungsfläche der benachbarten Bogenführungseinrichtung fluchtet. Dabei weist die Führungsfläche der kammförmigen Bogenführungseinrichtung in deren Zinken integrierte, insbesondere als Blasluftdüsen betreibbare, Luftdüsen auf, welche mit einer Pneumatikleitung gekoppelt sind. Alternativ ist die kammförmige Bogenführungseinrichtung auch ohne Blasluftunterstützung betreibbar.Furthermore, a sheet guiding device is made DE 298 17 317 U1 as a comb-shaped sheet guiding device between the transfer area of two gripper systems of sheet guiding cylinders and an adjacent sheet guiding device known. The comb-shaped sheet guide device has a guide surface, which is aligned with the guide surface of the adjacent sheet guiding device. In this case, the guide surface of the comb-shaped sheet guiding device integrated in the tines, in particular operated as Blasluftdüsen, air nozzles, which are coupled to a pneumatic line. Alternatively, the comb-shaped sheet guiding device is operable without Blasluftunterstützung.

Die kammförmige Bogenführungseinrichtung ist einem Übergabebereich zweier Greifersysteme in Förderrichtung des Bedruckstoffes im Bogenabgang nachgeordnet bzw. einem Übergabebereich zweier Greifersysteme in Förderrichtung des Bedruckstoffes im Bogenaufgang vorgeordnet.The comb-shaped sheet guiding device is arranged downstream of a transfer area of two gripper systems in the conveying direction of the printing material in the sheet exit or upstream of a transfer area of two gripper systems in the conveying direction of the printing material in the sheet.

Ferner ist in EP 112 3804 A1 eine Bogenleiteinrichtung mit den Merkmalen des Oberbegriffs des Anspruchs 1 beschrieben.Furthermore, in EP 112 3804 A1 a sheet guiding device with the features of the preamble of claim 1 described.

[Aufgabe der Erfindung]OBJECT OF THE INVENTION

Der Erfindung liegt die Aufgabe zugrunde, eine Bogenleiteinrichtung der eingangs beschriebenen Art zu schaffen, die insbesondere auf einem Druckzylinder mit zugeordneter Druck-/Lackierzone die glatte Auflage eines Bogens bereits ab einem dieser Druck-/Lackierzone vorgeordneten Übergabebereich gewährleistet und eine verbesserte Bogenführung entlang einer Führungsfläche der Bogenleiteinrichtung im Bogenaufgang vor dem Übergabebereich gestattet.The invention has for its object to provide a sheet guiding device of the type described above, which ensures in particular on a printing cylinder with associated printing / coating the smooth support of a sheet already from one of these pressure / Lackierzone upstream transfer area and improved bowing along a guide surface the sheet guiding allowed in the arch entrance before the transfer area.

Die Aufgabe wird durch die Ausbildungsmerkmale des Anspruchs 1 gelöst. Weiterbildungen ergeben sich aus den Unteransprüchen.The object is solved by the training features of claim 1. Further developments emerge from the subclaims.

Die Erfindung bezieht sich auf eine kammförmige Bogenleiteinrichtung mit einer pneumatisch beaufschlagbaren Führungsfläche, wobei diese dem Übergabebereich von zwei Greifersystemen zugeordnet ist. Die Greifersysteme sind dabei an je einem Bogenführungszylinder und/oder einem umlaufenden Kettensystem angeordnet.The invention relates to a comb-shaped sheet guide with a pneumatically actuated guide surface, which is associated with the transfer area of two gripper systems. The gripper systems are arranged on a respective sheet guiding cylinder and / or a circulating chain system.

Ein erster Vorteil der erfindungsgemäßen Bogenleiteinrichtung ist darin begründet, dass beispielsweise ein von einem Transferzylinder im Greiferschluß geführter Bogen auf seiner vorgegebenen Förderebene an das Greifersystem eines nachgeordneten Druckzylinders übergeben wird. Alternativ wird ein von einem Greifersystem eines umlaufenden Kettensystems geführter Bogen auf seiner vorgegebenen Förderebene an ein Greifersystem eines nachgeordneten Druckzylinders übergeben.A first advantage of the sheet guiding device according to the invention is that, for example, a sheet guided by a transfer cylinder in the gripper closure is transferred on its predetermined conveying plane to the gripper system of a downstream printing cylinder. Alternatively, a guided by a gripper system of a circulating chain system arc on its predetermined conveying plane to a Gripper system passed to a downstream pressure cylinder.

Ein weiterer Vorteil der Ausbildung besteht darin, dass die Bogenleiteinrichtung erfindungsgemäß als kammförmige Bogenleiteinrichtung ausgebildet ist und deren Zinken - ohne Beschädigungen insbesondere im Bereich der Bogenhinterkante zu verursachen - im Bogenaufgang möglichst nahe in den Übergabebereich zweier Greifersysteme hineinragen. Die kammförmige Bogenleiteinrichtung erzeugt mittels eines zuschaltbaren, vorzugsweise regelbaren Pneumatiksystems eine Saugluftströmung. Die Saugluftströmung bildet unterhalb des Übergabebereiches zweier Greifersysteme ein Unterdruckgebiet aus, so dass der Bogen, bevorzugt ab dem Tangentenpunkt, glatt auf dem Druckzylinder aufliegt. Damit ist das zwischen dem Bogen und der Mantelfläche des Druckzylinders befindliche Luftpolster sowie die Umgebungsluft unterhalb des Übergabebereiches spürbar reduzierbar.Another advantage of the embodiment is that the sheet guiding device according to the invention is designed as a comb-shaped sheet guiding device and whose prongs - without causing damage in particular in the region of the sheet trailing edge - protrude as close as possible to the transfer region of two gripper systems. The comb-shaped sheet guiding device generates a suction air flow by means of a switchable, preferably controllable pneumatic system. The suction air flow forms below the transfer region of two gripper systems a negative pressure area, so that the sheet, preferably from the tangent point, rests smoothly on the printing cylinder. Thus, the air cushion located between the sheet and the lateral surface of the printing cylinder and the ambient air below the transfer area is noticeably reduced.

Eine zusätzliche Reduzierung von Umgebungsluft ist erzielbar, indem den Zinken der kammförmigen Bogenleiteinrichtung eine Saugleiste in Förderrichtung des Bogenmaterials vorgeordnet ist. Dabei ist die Saugleiste in eine vorgeordnete Bogenleiteinrichtung integriert oder am Ende dieser Bogenleiteinrichtung (in Förderrichtung vor der kammförmigen Bogenleiteinrichtung) anordenbar.An additional reduction of ambient air can be achieved by the tines of the comb-shaped sheet guiding device upstream of a suction in the conveying direction of the sheet material. In this case, the squeegee is integrated in an upstream sheet guiding or at the end of this sheet guiding device (in the conveying direction in front of the comb-shaped sheet guide) can be arranged.

Vorteilhaft ist ferner, dass in einem durch Druckzone (Druckzylinder und Gummituchzylinder bzw. Formzylinder) und Übergabebereich zweier Greifersysteme (Tangentenpunkt von beispielsweise bogenführenden Zylindern) definierten Kreisbogen vor der Druck-/Lackierzone des Druckzylinders eine pneumatisch oder mechanisch betreibbare, Bogenführungseinrichtung dem Druckzylinder zugeordnet ist. Damit wird die Führung des bereits glatt auf der Mantelfläche des Druckzylinders aufliegenden Bogens vor der Druck-/Lackierzone unterstützt.A further advantage is that in a by print zone (pressure cylinder and blanket cylinder or forme cylinder) and transfer area of two gripper systems (tangent point of example sheet-guiding cylinders) arc defined before the printing / coating of the printing cylinder pneumatically or mechanically operable sheet guiding device is associated with the printing cylinder. Thus, the leadership of the already resting smoothly on the outer surface of the printing cylinder Supported bow in front of the printing / painting zone.

[Beispiele][Examples]

Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden. Dabei zeigen schematisch:

Fig. 1
eine Bogenrotationsdruckmaschine in Reihenbauweise mit Bogenleiteinrichtungen,
Fig. 2
eine Bogenleiteinrichtung im Übergabebereich zweier Bogenführungszylinder,
Fig. 3
ein Detail der kammförmigen Bogenleiteinrichtung gemäß Fig. 2,
Fig. 4
eine Weiterbildung von Fig. 3.
The invention will be explained in more detail using an exemplary embodiment. Here are shown schematically:
Fig. 1
a sheet-fed rotary printing machine in a row construction with sheet guiding devices,
Fig. 2
a sheet guiding device in the transfer region of two sheet guiding cylinders,
Fig. 3
a detail of the comb-shaped sheet guiding device according to FIG. 2,
Fig. 4
a development of Fig. 3rd

Eine Bogenrotationsdruckmaschine besteht aus mehreren Druckwerken 1 sowie wenigstens einem Lackwerk 8, welche in Förderrichtung 12 in Reihenbauweise angeordnet sind. Dem Lackwerk 8 ist in Förderrichtung 12 ein Ausleger 9 mit umlaufenden Kettensystemen 14, welche die Bogen 20 im Greiferschluß transportieren und auf einen Auslegerstapel ablegen, nachgeordnet. Jedes Druckwerk 1 besteht aus einem einfachgroßen Plattenzylinder 2, einem einfachgroßen Gummituchzylinder 3 und einem doppeltgroßen Druckzylinder 4 ausgebildet. Jedem Plattenzylinder 2 ist ein Farbwerk zugeordnet und ggf. ein Feuchtwerk. Das Lackwerk 8 weist ein Dosiersystem 7, z.B. ein Kammerrakel mit gerasterter Auftragwalze, auf, welches mit einem Formzylinder 6 in Funktionsverbindung ist. Dem Formzylinder 6 ist wiederum ein Druckzylinder 4 zugeordnet. Formzylinder 6 und Gummituchzylinder 3 bilden mit den zugeordneten bogenführenden Druckzylindern 4 jeweils eine Druck-/ Lackierzone 16.A sheet-fed rotary printing machine consists of several printing units 1 and at least one coating unit 8, which are arranged in the conveying direction 12 in a row construction. The coating unit 8 is in the conveying direction 12, a boom 9 with rotating chain systems 14, which transport the sheet 20 in the gripper closure and store it on a delivery pile, downstream. Each printing unit 1 is formed of a single-sized plate cylinder 2, a single-sized blanket cylinder 3 and a double-sized impression cylinder 4. Each plate cylinder 2 is assigned an inking unit and possibly a dampening unit. The coating unit 8 has a metering system 7, for example a chambered doctor blade with a screened application roller, which is in functional connection with a forme cylinder 6. The form cylinder 6 is in turn assigned a pressure cylinder 4. Form cylinder 6 and blanket cylinder 3 form with the associated sheet-guiding printing cylinders 4 each have a printing / coating 16.

Zwischen den Druckwerken 1 und dem Lackwerk 8 sind bogenführende Transferzylinder 5 angeordnet. Dabei ist beispielsweise ein Transferzylinder 5 durch eine bogenführende Wendeeinrichtung 10 nach dem Prinzip der Eintrommel- oder Drei-Trommel-Wendung substituierbar.Between the printing units 1 and the coating unit 8 arc guiding transfer cylinder 5 are arranged. In this case, for example, a transfer cylinder 5 can be substituted by a bow-guiding turning device 10 according to the principle of the single-drum or three-drum turn.

Die bogenführenden Zylinder 4, 5, die Wendeeinrichtung 10 sowie die Kettensysteme 14 weisen u.a. Greifersysteme 30, 31 mit Übergabebereichen 19 für den Bogentransport in Förderrichtung 12 auf. Den bogenführenden Transferzylindern 5, Wendeeinrichtungen 10 sowie den Kettensystemen 14 sind Bogenleiteinrichtungen 11, vorzugsweise in modularer Anordnung, in definiertem Abstand zur vorgegebenen Förderebene benachbart zugeordnet.The sheet-guiding cylinders 4, 5, the turning device 10 and the chain systems 14 have u.a. Gripper systems 30, 31 with transfer areas 19 for the sheet transport in the conveying direction 12 on. The sheet-guiding transfer cylinders 5, turning devices 10 and the chain systems 14 are associated sheet guiding devices 11, preferably in a modular arrangement, adjacent to a predetermined distance to the predetermined conveying plane.

Die Bogenleiteinrichtungen 11 sind als Luftversorgungskästen (Strömungskanäle) zur Führung der Bogen 20 in der vorgegebenen Förderebene mit einer über deren Breite und Länge eine Vielzahl von Düsen 13 aufweisenden, ansonsten geschlossenen und den Bogen 20 zugewandten Führungsfläche 21 ausgebildet. Die Düsen 13 sind beispielsweise mit Blasluft oder Saugluft betreibbare Öffnungen, z.B. Bohrungen, Schlitze etc., oder sind nach dem Prinzip des aerodynamischen Paradoxons betreibbar. Hierzu weisen die Luftversorgungskästen je ein erstes Pneumatiksystem 22 auf, welches beispielsweise durch umschaltbare (Blasluft/Saugluft) Lüfter gebildet ist.The sheet guiding devices 11 are designed as air supply boxes (flow channels) for guiding the sheets 20 in the predetermined conveying plane with a width and length of a plurality of nozzles 13 having, otherwise closed and the sheet 20 facing guide surface 21. The nozzles 13 are, for example, openings operable with blown air or suction air, e.g. Holes, slots, etc., or are operated on the principle of the aerodynamic paradox. For this purpose, the air supply boxes each have a first pneumatic system 22, which is formed for example by reversible (blown air / suction air) fan.

Im Bogenaufgang eines Übergabebereiches 19 zweier an bogenführenden Zylindern 4, 5 angeordneter Greifersysteme 30, 31 ist endseitig, möglichst nahe vor dem Übergabebereich 19 eine kammförmige Bogenleiteinrichtung 15 angeordnet.Arranged in the arcuate region of a transfer area 19 of two gripper systems 30, 31 arranged on sheet-guiding cylinders 4, 5, a comb-shaped sheet guiding device 15 is arranged at the end, as close as possible in front of the transfer area 19.

Die kammförmige Bogenleiteinrichtung 15 weist einen Luftversorgungskasten auf, welcher mit einem zweiten Pneumatiksystem 29 betreibbar ist (Fig. 4). Endseitig besitzt die kammförmige Bogenleiteinrichtung 15 - in Achsrichtung der bogenführenden Zylinder 4, 5 betrachtet - über die maximale Formatbreite eine Mehrzahl von Zinken 17, welche in Richtung Übergabebereich 19 zeigen, auf. Die Zinken 17 sind in einem definierten Abstand zueinander angeordnet und bilden somit Freiräume 18 durch die die Greifersysteme des nachgeordneten Druckzylinders 4 (welcher in diesem Bereich noch keinen Bogen 20 führt) durchlaufen können. Die Zinken 17 sind über den Luftversorgungskasten (Bogenleiteinrichtung 15) mit dem zweiten Pneumatiksystem 29 gekoppelt und weisen erste und zweite Öffnungen 23, 24 auf.The comb-shaped sheet guiding device 15 has an air supply box, which is operable with a second pneumatic system 29 (FIG. 4). At the end, the comb-shaped sheet guiding device 15-viewed in the axial direction of the sheet-guiding cylinders 4, 5-has over the maximum format width a plurality of prongs 17, which point in the direction of the transfer region 19. The tines 17 are arranged at a defined distance from each other and thus form free spaces 18 through which the gripper systems of the downstream printing cylinder 4 (which in this area still no sheet 20) can go through. The prongs 17 are coupled via the air supply box (sheet guiding device 15) to the second pneumatic system 29 and have first and second openings 23, 24.

In einer weiteren Ausbildung ist die kammförmigen Bogenleiteinrichtung 15 mit Öffnungen 23, 24 sowie Zinken 17 kanalseitig mit dem Luftversorgungskasten (Strömungskanal) der Bogenleiteinrichtung 11 gekoppelt, so dass die Luftversorgung der Bogenleiteinrichtungen 11, 15 mit dem ersten Pneumatiksystem 22 (alternativ dem zweiten Pneumatiksystem 29) gemeinsam realisierbar ist.In a further embodiment, the comb-shaped sheet guiding device 15 with openings 23, 24 and prongs 17 on the channel side with the air supply box (flow channel) of the sheet guiding device 11 is coupled, so that the air supply of the sheet guiding devices 11, 15 with the first pneumatic system 22 (alternatively the second pneumatic system 29) is jointly feasible.

Die kammförmige Bogenleiteinrichtung 15 weist eine Führungsfläche 21 auf, die zur Führungsfläche 21 der Bogenleiteinrichtung 11 in deren Krümmungssinn fluchtend angeordnet ist. Dabei sind die Bogenleiteinrichtungen 11, 15 modular (beispielsweise auf Stoß montiert) oder in ein Bauteil integriert angeordnet ausführbar, um eine durchgehende Führungsfläche 21 zu schaffen.The comb-shaped sheet guiding device 15 has a guide surface 21 which is arranged in alignment with the guide surface 21 of the sheet guiding device 11 in the direction of curvature thereof. In this case, the sheet guiding devices 11, 15 are modular (for example, mounted on impact) or arranged integrated into a component executable to provide a continuous guide surface 21.

Die Zinken 17 mit Öffnungen 23, 24 erfüllen zwei Funktionen. In der ersten Funktion sind die Zinken 17 mit den ersten Öffnungen 23 über die Formatbreite im Krümmungssinn mit der durchgehenden Führungsfläche 21 (integriert) fluchtend angeordnet, um die Bogenführung im Bogenaufgang unterhalb des Bogenführungszylinders 5 zu unterstützen.The tines 17 with openings 23, 24 fulfill two functions. In the first function, the prongs 17 with the first openings 23 over the format width in the direction of curvature with the continuous guide surface 21 (integrated) arranged in alignment, to support the sheet guide in the arc below the sheet guiding cylinder 5.

In der zweiten Funktion sind die Zinken 17 mit den zweiten Öffnungen 24, vorzugsweise an einer über die Formatbreite durchgängigen Kante oder Krümmung (Linie 25), aus der Ebene der Führungsfläche 21 in Richtung zum nachgeordneten bogenführenden Druckzylinder 4 hin abgekröpft ausgebildet, so dass die zweiten Öffnungen 24 im wesentlichen auf den Übergabebereich 19 gerichtet sind. In einer weiteren Ausbildung können zusätzliche Öffnungen 32 rückseitig in Richtung des nachfolgenden Druckzylinders 4 in die Zinken 17 integriert werden (Fig. 4), um die vom Druckzylinder 4 transportierte Schleppströmung und die unterhalb des Übergabebereiches 19 noch befindliche Umgebungsluft zu evakuieren bzw. zu reduzieren.In the second function, the prongs 17 are formed with the second openings 24, preferably bent at an over the format width continuous edge or curvature (line 25), from the plane of the guide surface 21 toward the downstream sheet-guiding printing cylinder 4, so that the second Openings 24 are directed substantially to the transfer area 19. In a further embodiment, additional openings 32 can be integrated into the tines 17 at the rear in the direction of the subsequent impression cylinder 4 (FIG. 4) in order to evacuate or reduce the drag flow transported by the pressure cylinder 4 and the ambient air still remaining below the transfer region 19.

Um beispielsweise einen relativ hohen Volumenstrom an Saugluft zwecks Evakuierung der Luft zwischen Druckzylinder 4 und Bogen 20 unterhalb des Übergabebereiches 19 zu erzeugen, sind bevorzugt die Öffnungen 24 und/oder die Öffnungen 32 größer als die Öffnungen 23 ausgebildet.For example, to generate a relatively high volume flow of suction air for the purpose of evacuating the air between the impression cylinder 4 and sheet 20 below the transfer area 19, the openings 24 and / or the openings 32 are preferably larger than the openings 23 are formed.

In einem durch den Übergabebereich 19 und eine Druck-/ Lackierzone 16 gebildeten Kreisbogen ist jedem Druckzylinder 4 eine pneumatisch beaufschlagbare und/oder eine mechanisch wirkende Bogenführungseinrichtung 27 benachbart zugeordnet. Die Bogenführungseinrichtung 27 ist bevorzugt als Druckzylinderblasvorrichtung ausgebildet, welche beispielsweise gemäß DE 197 53 089 A1 ausführbar ist. Alternativ sind ein oder mehrere Blasrohre anordenbar, welche sich in Zylinderachsrichtung zumindest über die Formatbreite erstrecken und deren Blasluftströmung zumindest auf den vom bogenführenden Druckzylinder 4 geführten Bogen 20 gerichtet sind. In einer Weiterbildung ist zusätzlich eine Blasluftströmung in Richtung Druck-/Lackierzone 16 gerichtet.In a circular arc formed by the transfer region 19 and a printing / varnishing zone 16, each printing cylinder 4 is assigned a pneumatically actuated and / or a mechanically acting sheet guiding device 27 adjacent thereto. The sheet guiding device 27 is preferably designed as Druckzylinderblasvorrichtung which, for example, according to DE 197 53 089 A1 is executable. Alternatively, one or more blowpipes can be arranged, which extend in Zylinderachsrichtung at least over the format width and whose Blasluftströmung are directed at least on the guided from the sheet-guiding printing cylinder 4 sheet 20. In a further development, an additional blown air flow in the direction Pressure / Lackierzone 16 directed.

Zwischen der kammförmigen Bogenleiteinrichtung 15 und der Bogenleiteinrichtung 11 ist im Bogenaufgang am Ende der Bogenleiteinrichtung 11 zusätzlich in die Führungsfläche 21 eine Saugleiste 26 integrierbar. Die Saugleiste 26 ist dabei der Bogenleiteinrichtung 11 zugeordnet, alternativ ist auch eine Zuordnung zur kammförmigen Bogenleiteinrichtung 15 realisierbar. Die Saugleiste 26 erstreckt sich über die max. Formatbreite der Führungsfläche 21 und ist bevorzugt mit einer separaten Saugluftquelle 28 gekoppelt. Alternativ kann die Saugleiste 26 auch mit dem Pneumatiksystem 29 der Zinken 17 (kammförmige Bogenleiteinrichtung 15) gekoppelt werden. In bevorzugter Ausbildung ist die Saugleiste 26 geradförmig, d.h. im rechten Winkel oder schräg zur Förderrichtung 12 über die Formatbreite angeordnet. Alternativ ist eine pfeilförmige Anordnung der Saugleiste 26 realisierbar, um den Bogen 20 in Förderrichtung 12 auszustreichen.Between the comb-shaped sheet guiding device 15 and the sheet guiding device 11, a suction strip 26 can additionally be integrated into the guide surface 21 in the sheet exit at the end of the sheet guiding device 11. The squeegee 26 is assigned to the sheet guide 11, alternatively, an assignment to the comb-shaped sheet guide 15 can be realized. The squeegee 26 extends over the max. Format width of the guide surface 21 and is preferably coupled to a separate suction air source 28. Alternatively, the squeegee 26 can also be coupled to the pneumatic system 29 of the tines 17 (comb-shaped sheet guiding device 15). In a preferred embodiment, the squeegee 26 is straight, i. arranged at right angles or obliquely to the conveying direction 12 over the format width. Alternatively, an arrow-shaped arrangement of the squeegee 26 can be realized in order to sweep the sheet 20 in the conveying direction 12.

Die Saugleiste 26 bewirkt in Richtung Transferzylinder 5 einen Unterdruck zwischen Bogen 20 und der Führungsfläche 21, indem die Umgebungsluft mittels Saugluftquelle 28 (bzw. bei Kopplung mittels Pneumatiksystem 29) evakuiert wird. Darüber hinaus wird auch die im Bereich der Zinken 17 sowie unterhalb des Übergabebereiches 19 noch befindliche Umgebungsluft evakuiert.The squeegee 26 causes in the direction transfer cylinder 5 a negative pressure between the sheet 20 and the guide surface 21 by the ambient air by means of Saugluftquelle 28 (or when coupled by means of pneumatic system 29) is evacuated. In addition, the ambient air still present in the area of the tines 17 and below the transfer area 19 is also evacuated.

In einer Weiterbildung ist die Saugleiste 26 in einen in der Führungsfläche 21 angeordneten Bogenglätter integriert, so dass neben der Evakuierung von Umgebungsluft der Bogen 20 zusätzlich über die wellenförmig gekrümmte Kontur gezogen wird. Der im Greiferschluß (bogenführende Zylinder 4 bzw. 5) fixierte Bogen 20 unterliegt dabei dem Decurleffekt und wird entgegen der Förderrichtung 12 gestreckt.In a further development, the squeegee 26 is integrated in a sheet smoother arranged in the guide surface 21, so that in addition to the evacuation of ambient air, the sheet 20 is additionally pulled over the wavy curved contour. The in the gripper closure (sheet-guiding cylinder 4 or 5) fixed sheet 20 is subject to the deconstruction and is stretched contrary to the conveying direction 12.

Die Wirkungsweise ist wie folgt: Der im Greiferschluß (Greifersystem 31) von dem rotierenden Transferzylinder 5 geführte Bogen 20 wird im Übergabebereich 19 an das Greifersystem 30 des rotierenden, nachgeordneten Druckzylinders 4 übergeben.The mode of action is as follows: The sheet 20 guided in the gripper closure (gripper system 31) by the rotating transfer cylinder 5 is transferred in the transfer region 19 to the gripper system 30 of the rotating, downstream impression cylinder 4.

In erster Ausbildung wird unterhalb des Übergabebereiches 19 im Bogenaufgang zumindest an den Öffnungen 23, 24, insbesondere an den Öffnungen 24, der Zinken 17 eine Saugluftströmung erzeugt, so dass ein Unterdruckgebiet zwischen dem Bogen 20 und den bogenführenden Zylindern 4, 5 vorliegt. Dadurch wird der Bogen 20 in Richtung der kammförmigen Bogenleiteinrichtung 15 geführt und danach bereits ab dem Übergabebereich 19 glatt auf dem Bogenführungszylinder 4 geführt.In the first embodiment, a suction air flow is generated below the transfer area 19 in the arched at least at the openings 23, 24, in particular at the openings 24, the prongs 17, so that a negative pressure area between the sheet 20 and the sheet-guiding cylinders 4, 5 is present. As a result, the sheet 20 is guided in the direction of the comb-shaped sheet guiding device 15 and then smoothly guided on the sheet guiding cylinder 4 already from the transfer area 19.

In zweiter Ausbildung wird zusätzlich zur ersten Ausbildung durch die in Förderrichtung 12 den Zinken 17 vorgeordnete Saugleiste 26 eine Saugluftströmung erzeugt, so dass ein Unterdruckgebiet zwischen dem am Transferzylinder 5 geführten Bogen 20 und der Führungsfläche 21 der benachbarten Bogenleiteinrichtung 11 vorliegt. Der Bogen 20 wird in Richtung der Führungsfläche 21 gezogen und in Förderrichtung 12 schwebend geführt.In a second embodiment, in addition to the first embodiment, a suction air flow is generated by the suction strip 26 arranged upstream of the tines 17 in the conveying direction 12 so that there is a negative pressure area between the sheet 20 guided on the transfer cylinder 5 and the guide surface 21 of the adjacent sheet guiding device 11. The sheet 20 is pulled in the direction of the guide surface 21 and guided in the conveying direction 12 floating.

In einer Weiterbildung der zweiten Ausbildung ist zusätzlich die Saugleiste 26 in einen Bogenglätter integriert, so dass der Bogen 20 zusätzlich entgegen seiner Förderrichtung 12 gestreckt wird.In a further development of the second embodiment, the suction strip 26 is additionally integrated in a sheet smoother, so that the sheet 20 is additionally stretched counter to its conveying direction 12.

Bei jeder Ausbildung wird der auf dem Druckzylinder 4 im Greiferschluß geführte Bogen 20 in dem durch Übergabereich 19 und Druck-/Lackierzone 16 definierten Bereich mittels einer Bogenführungseinrichtung 27 geführt.In each embodiment, the sheet 20 guided in the gripper closure on the printing cylinder 4 is guided in the area defined by transfer region 19 and printing / coating zone 16 by means of a sheet guiding device 27.

[Bezugszeichenliste][REFERENCE LIST]

11
Druckwerkprinting unit
22
Plattenzylinderplate cylinder
33
GummituchzylinderBlanket cylinder
44
Druckzylinderpressure cylinder
55
Transferzylindertransfer cylinder
66
Formzylinderform cylinder
77
Dosiersystemdosing
88th
Lackwerkcoating unit
99
Auslegerboom
1010
Wendeeinrichtungturning device
1111
Bogenleiteinrichtungsheet guiding device
1212
Förderrichtungconveying direction
1313
Düsenjet
1414
Kettensystemchain system
1515
kammförmige Bogenleiteinrichtungcomb-shaped sheet guiding device
1616
Druck-/ LackierzonePrinting / varnishing zone
1717
Zinkenprong
1818
Freiraumfree space
1919
ÜbergabebereichTransfer area
2020
Bogenbow
2121
Führungsflächeguide surface
2222
Erstes PneumatiksystemFirst pneumatic system
2323
Erste ÖffnungFirst opening
2424
Zweite ÖffnungSecond opening
2525
Linieline
2626
Saugleistesqueegee
2727
BogenführungseinrichtungSheet guiding device
2828
Saugluftquellevacuum source
2929
Zweites PneumatiksystemSecond pneumatic system
3030
Greifersystemgripper system
3131
Greifersystemgripper system
3232
Zusätzliche ÖffnungAdditional opening

Claims (6)

  1. Sheet control device with a guiding surface in a printing machine assigned to a transfer region (19) formed through two gripper systems (30, 31) fastened to sheet-guiding cylinders (4,5) with a sheet guiding device (27) arranged between the transfer region and a printing zone (16) adjacent to a neighbouring sheet-guiding printing cylinder (4),
    wherein
    below the transfer region (19) upstream of the printing zone a comb-shaped sheet control device (15) having several tines (17) arranged at a distanced from one another is arranged over the format width,
    characterized in
    that this sheet control device (15) has an air supply box and a guiding surface (21) facing the sheet (20) and is coupled with a pneumatic system (29),
    that the tines (17) have first and second apertures (23, 24) coupled with the air supply box, that the first apertures (23) are integrated in the guide surface (21) and
    that the second apertures (24) are arranged from the plane of the guide surface (21) offset in the direction towards a printing cylinder (4) downstream in the transport direction (12), so that the second apertures (24) are at least directed towards the transfer region (19).
  2. The sheet control device according to claim 1,
    characterized in
    that a suction bar (26) integrated in the guide surface (21) extending over the format width and coupled with a suction air source (28) is arranged upstream in transport direction (12).
  3. The sheet control device according claim 2,
    characterized in
    that the suction bar (26) is integrated in a sheet smoother integrated in the guide surface (21).
  4. The sheet control device according to claim 1 or 2,
    characterized in
    that the tines (17) have additional apertures (32) pointing to the sheet-guiding printing cylinder (4) arranged downstream.
  5. The sheet control device according to claim 2,
    characterized in
    that the pneumatic system (29) of the comb-shaped sheet control device (15) is coupled with a suction air source (28).
  6. The sheet control device according to claim 1 or 2,
    characterized in
    that the pneumatic system (29) of the comb-shaped sheet control device (15) is coupled with the pneumatic system (22) of a sheet control device (11) arranged upstream in transport direction (12) and the sheet control devices (15, 11) have a common air supply duct.
EP02025136A 2001-11-23 2002-11-09 Sheet feeding device with a guiding surface in a printing machine Revoked EP1314555B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10157566A DE10157566B4 (en) 2001-11-23 2001-11-23 Sheet guiding device with a guide surface in a printing machine
DE10157566 2001-11-23

Publications (2)

Publication Number Publication Date
EP1314555A1 EP1314555A1 (en) 2003-05-28
EP1314555B1 true EP1314555B1 (en) 2007-09-05

Family

ID=7706760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02025136A Revoked EP1314555B1 (en) 2001-11-23 2002-11-09 Sheet feeding device with a guiding surface in a printing machine

Country Status (4)

Country Link
EP (1) EP1314555B1 (en)
JP (1) JP3703796B2 (en)
AT (1) ATE372212T1 (en)
DE (2) DE10157566B4 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1352738A3 (en) * 2002-04-08 2004-08-04 Komori Corporation Sheet guide apparatus
JP2005335364A (en) 2004-04-26 2005-12-08 Dainippon Screen Mfg Co Ltd Printing apparatus
DE102004021730B4 (en) * 2004-04-30 2011-08-18 KOENIG & BAUER Aktiengesellschaft, 97080 Sheet guiding device in printing machines
DE102004058377A1 (en) 2004-12-03 2006-06-14 Man Roland Druckmaschinen Ag Sheet guiding device for a sheet-processing machine, in particular rotary printing press
JP2008247549A (en) * 2007-03-30 2008-10-16 Komori Corp Sheet-like object guide device
JP2009220400A (en) * 2008-03-17 2009-10-01 Ryobi Ltd Sheet delivery device of printing machine
JP5202054B2 (en) * 2008-03-17 2013-06-05 リョービ株式会社 Sheet paper delivery device in a printing press

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4430105C2 (en) * 1994-08-25 1996-07-04 Roland Man Druckmasch Method and device for the flat guidance of sheets fixed in the gripper closure on a curved surface of a cylinder of a rotary printing machine
DE19848441C2 (en) * 1997-12-08 2000-05-31 Koenig & Bauer Ag Method and device for turning sheets with a sheet guiding device
DE19809876C2 (en) * 1998-03-07 2002-06-06 Koenig & Bauer Ag Guide bar tip on guide bars in sheet-fed rotary printing machines
DE19814006C1 (en) * 1998-03-28 1999-06-02 Koenig & Bauer Ag Sheet guiding method for printer
DE29817317U1 (en) * 1998-09-26 1998-11-19 Roland Man Druckmasch Sheet guiding device with a guiding surface in a printing press
EP1123804B1 (en) * 2000-02-10 2004-04-28 Mitsubishi Heavy Industries, Ltd. Sheet guide unit in a sheet-fed press

Also Published As

Publication number Publication date
DE50210847D1 (en) 2007-10-18
JP3703796B2 (en) 2005-10-05
JP2003192182A (en) 2003-07-09
DE10157566A1 (en) 2003-06-12
ATE372212T1 (en) 2007-09-15
EP1314555A1 (en) 2003-05-28
DE10157566B4 (en) 2006-10-19

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