EP0331777A1 - Tensioning device for securing a cover to the cylinder of a rotary printing machine - Google Patents

Tensioning device for securing a cover to the cylinder of a rotary printing machine Download PDF

Info

Publication number
EP0331777A1
EP0331777A1 EP88103685A EP88103685A EP0331777A1 EP 0331777 A1 EP0331777 A1 EP 0331777A1 EP 88103685 A EP88103685 A EP 88103685A EP 88103685 A EP88103685 A EP 88103685A EP 0331777 A1 EP0331777 A1 EP 0331777A1
Authority
EP
European Patent Office
Prior art keywords
tensioning
cylinder
pit
clamping
pistons
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
EP88103685A
Other languages
German (de)
French (fr)
Other versions
EP0331777B1 (en
Inventor
Ingo Köbler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE19873707066 priority Critical patent/DE3707066A1/en
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to EP19880103685 priority patent/EP0331777B1/en
Publication of EP0331777A1 publication Critical patent/EP0331777A1/en
Application granted granted Critical
Publication of EP0331777B1 publication Critical patent/EP0331777B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
    • B41F27/1237—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially perpendicular to support surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders

Definitions

  • the invention relates to a tensioning device for fastening an elevator to the cylinder of a rotary printing press - preferably blanket tensioning device to the blanket cylinder of a web offset rotary printing press - according to the preamble of patent claim 1.
  • Such a clamping device is known from US Pat. No. 2,209,127 for the attachment of printing plates to a plate cylinder.
  • this tensioning device both ends of a support carrying the actual printing plates are inserted into two recesses of the same height on a tensioning bar. Thereupon, the tensioning strip is moved in the direction of the center of the cylinder by screwing in screws passed through it and anchored in the bottom of a cylinder pit.
  • This device has the disadvantage that a uniform movement of the numerous screws distributed over the length of a pit is required to achieve a uniform tension of the elevator. Such a uniform screwing in of the screws can be achieved either only with increased expenditure on operating personnel or with a complex device.
  • the invention is based on the object of developing a generic tensioning device in such a way that it enables uniform tensioning of the elevator over the entire cylinder length with simple operation from a single point.
  • a pit 2 with a rectangular cross section is machined parallel to its axis. From the bottom 3 of this pit 2, blind-hole-like bores are made at regular intervals towards the center of the cylinder, which serve as working cylinders 4 for pistons 5 which are axially movable therein.
  • the working cylinders 4 are closed to the pit floor 3 by cover plates 6.
  • the cover plates 6 fastened in the pit floor 3 by means of screws 7 each have a central passage bore 8.
  • a piston rod 9 fastened to the piston 5 is led upwards out of the working cylinder 4.
  • the free end of the guided out piston rod 9 is provided with a thread which is screwed into a blind hole thread 10 on the underside of a clamping bar 11.
  • a lock nut 12 arranged on the thread of the piston rod 9 allows the distance between the piston 5 and the clamping bar 11 to be adjusted.
  • the tensioning strip 11 In its lower part, the tensioning strip 11 has a width which corresponds approximately to that of the pit 2. In the upper part, the clamping strip 11 is reduced in width on both sides by two recesses 13 and 14 which are rectangular in cross section. The cutouts 13 and 14 are bounded at the top by two laterally projecting shoulders 15 and 16 at the outer end of the tensioning strip 11.
  • a feed channel 18 opens out at the side, the other end of which is connected to a pressure storage space 19 provided inside the blanket cylinder 1.
  • the pressure storage space 19 can be filled with a pressurized fluid via a check valve 21 inserted into a side wall 20 of the blanket cylinder 1.
  • the pressure storage space 19 is filled with a pressurized fluid, for example compressed air.
  • a pressurized fluid for example compressed air.
  • the fluid reaches the working spaces of the working cylinders 4 above the pistons 5 via the supply channels 18 17 exceeds, the pistons 5 are moved downward and the clamping bar 11 is slowly pulled down over the piston rods 9. Due to the controlled pressure increase, the rubber blanket 24 can be subjected to a precisely defined tension, regardless of slight length differences.
  • the pressure storage space 19 is simply relieved of the storage pressure via the valve 21 or a special relief valve (not shown).
  • the spring 17 ⁇ is arranged above the piston 5 in the working cylinder 4.
  • the clamping bar 11 holds its compressive force in the basic position in the pit 2.
  • the feed channel 18 ⁇ opens into the lower part of the working cylinder 4. Accordingly, energy is applied to the piston 5 only for extending the tensioning strip 11 for a change of the rubber blanket 24.
  • the pressure storage space 19 in the interior of the cylinder is relieved of pressure.

Abstract

1. In known tensioning devices the tensioning bar in the tensioning channel (pit) is moved by a multiplicity of screws which are to be actuated as uniformly and synchronously as possible. By means of the new device, a uniform tensioning of the covering and simplified operation from a single place are possible. 2. The tensioning bar (11) is in contact with pistons (5) via piston rods (9), which pistons can move in working cylinders (4) provided in the base (3) of the pit against the force of a spring (17). The movement takes place by supplying the piston (5) with energy, preferably a fluid under pressure, through a check-valve (21), a pressure-medium reservoir (19) and feed channels (18). 3. The tensioning device is particularly suitable for the clamping of rubber blankets on to blanket cylinders of rotary offset printing machines. <IMAGE>

Description

Die Erfindung betrifft eine Spannvorrichtung zur Befestigung eines Aufzuges am Zylinder einer Rotationsdruckmaschine - vorzugsweise Gummituch-Spannvorrichtung am Gummituchzylinder einer Rollenoffset-Rotationsdruckmaschine - gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a tensioning device for fastening an elevator to the cylinder of a rotary printing press - preferably blanket tensioning device to the blanket cylinder of a web offset rotary printing press - according to the preamble of patent claim 1.

Eine solche Spannvorrichtung ist aus der US-PS 2 209 127 für die Befestigung von Druckplatten auf einem Plattenzylinder bekannt. Bei dieser Spannvorrichtung werden beide Enden einer die eigentlichen Druckplatten tragenden Unterlage in zwei höhengleiche Ausnehmungen einer Spannleiste eingeführt. Daraufhin wird die Spannleiste durch Eindrehen von durch sie hindurchgeführten, im Boden einer Zylindergrube verankerten Schrauben in Richtung zur Zylindermitte bewegt. Bei dieser Vorrichtung ist nachteilig, daß zur Erreichung einer gleichmäßigen Spannung des Aufzuges eine gleichmäßige Bewegung der zahlreichen über die Länge einer Grube verteilten Schrauben erforderlich ist. Ein solch gleichmäßiges Eindrehen der Schrauben ist entweder nur mit einem erhöhten Aufwand an Bedienungspersonal oder mit einer aufwendigen Vorrichtung erreichbar.Such a clamping device is known from US Pat. No. 2,209,127 for the attachment of printing plates to a plate cylinder. In this tensioning device, both ends of a support carrying the actual printing plates are inserted into two recesses of the same height on a tensioning bar. Thereupon, the tensioning strip is moved in the direction of the center of the cylinder by screwing in screws passed through it and anchored in the bottom of a cylinder pit. This device has the disadvantage that a uniform movement of the numerous screws distributed over the length of a pit is required to achieve a uniform tension of the elevator. Such a uniform screwing in of the screws can be achieved either only with increased expenditure on operating personnel or with a complex device.

Die Erfindung geht von der Aufgabe aus, eine gattungsgemäße Spannvorrichtung derart weiterzubilden, daß diese bei einfacher Bedienung von einer einzigen Stelle aus eine gleichmäßige Spannung des Aufzuges über die gesamte Zylinderlänge ermöglicht.The invention is based on the object of developing a generic tensioning device in such a way that it enables uniform tensioning of the elevator over the entire cylinder length with simple operation from a single point.

Diese Aufgabe wird durch die Anwendung der Merkmale des Kennzeichens des Patentanspruches 1 gelöst. Das Vorsehen von Arbeitszylindern und darin beweglichen Kolben, die mit der Spannleiste verbunden sind, ermöglicht durch eine gleichzeitige gleichmäßige Energiezufuhr zu diesen Arbeitszylindern, eine gleichmäßige Spannung bei einfachster Bedienung von einem einzigen Punkt aus.This object is achieved by applying the features of the characterizing part of patent claim 1. The provision of working cylinders and pistons movable therein, which are connected to the clamping bar, enables uniform tensioning with simultaneous energy supply to these working cylinders, uniform clamping with simple operation from a single point.

Ein Ausführungsbeispiel der Erfindung ist nachstehend anhand der Fig. beschrieben. Dabei zeigt

  • Fig. 1 einen Teilquerschnitt durch einen Gummituchzylinder im Bereich der Grube,
  • Fig. 2 einen Teillängsschnitt durch eine erfindungsgemäße Spannvorrichtung.
  • Fig. 3 einen Teillängsschnitt durch eine Variante einer erfindungsgemäßen Spannvorrichtung.
An embodiment of the invention is described below with reference to the Fig. It shows
  • 1 shows a partial cross section through a blanket cylinder in the area of the pit,
  • Fig. 2 shows a partial longitudinal section through a tensioning device according to the invention.
  • Fig. 3 shows a partial longitudinal section through a variant of a tensioning device according to the invention.

In die Mantelfläche eines Gummituchzylinders 1 ist parallel zu dessen Achse eine Grube 2 mit rechteckigem Querschnitt eingearbeitet. Vom Boden 3 dieser Grube 2 aus sind in gleichmäßigen Abständen sacklochartige Bohrungen in Richtung zur Zylindermitte hin eingebracht, die als Arbeitszylinder 4 für darin axial bewegliche Kolben 5 dienen. Die Arbeitszylinder 4 sind zum Grubenboden 3 hin durch Abdeckplatten 6 verschlossen. Die mittels Schrauben 7 im Grubenboden 3 befestigten Abdeckplatten 6 weisen jeweils eine zentrale Durchlaßbohrung 8 auf. Durch diese ist eine am Kolben 5 befestigte Kolbenstange 9 nach oben aus dem Arbeitszylinder 4 herausgeführt. Das freie Ende der herausgeführten Kolbenstange 9 ist mit einem Gewinde versehen, welches in ein Sacklochgewinde 10 an der Unterseite einer Spannleiste 11 eingeschraubt ist. Eine auf dem Gewinde der Kolbenstange 9 angeordnete Kontermutter 12 erlaubt eine Einstellung des Abstandes zwischen Kolben 5 und Spannleiste 11.In the outer surface of a blanket cylinder 1, a pit 2 with a rectangular cross section is machined parallel to its axis. From the bottom 3 of this pit 2, blind-hole-like bores are made at regular intervals towards the center of the cylinder, which serve as working cylinders 4 for pistons 5 which are axially movable therein. The working cylinders 4 are closed to the pit floor 3 by cover plates 6. The cover plates 6 fastened in the pit floor 3 by means of screws 7 each have a central passage bore 8. Through this, a piston rod 9 fastened to the piston 5 is led upwards out of the working cylinder 4. The free end of the guided out piston rod 9 is provided with a thread which is screwed into a blind hole thread 10 on the underside of a clamping bar 11. A lock nut 12 arranged on the thread of the piston rod 9 allows the distance between the piston 5 and the clamping bar 11 to be adjusted.

Die Spannleiste 11 weist in ihrem unteren Teil eine Breite auf, die der der Grube 2 in etwa entspricht. Im oberen Teil ist die Spannleiste 11 durch zwei im Querschnitt rechteckige Aussparungen 13 und 14 zu beiden Seiten in ihrer Breite vermindert. Die Aussparungen 13 und 14 werden nach oben durch zwei seitlich vorspringende Schultern 15 und 16 am äußeren Ende der Spannleiste 11 begrenzt.In its lower part, the tensioning strip 11 has a width which corresponds approximately to that of the pit 2. In the upper part, the clamping strip 11 is reduced in width on both sides by two recesses 13 and 14 which are rectangular in cross section. The cutouts 13 and 14 are bounded at the top by two laterally projecting shoulders 15 and 16 at the outer end of the tensioning strip 11.

In den Arbeitszylindern 4 befinden sich unterhalb der Kolben 5 Federn 17, die die Kolben 5 in Grundstellung nach oben drücken. In den oberen Teil der Arbeitszylinder 4 mündet seitlich jeweils ein Zufuhrkanal 18 ein, der mit seinem anderen Ende an einem im Inneren des Gummituchzylinders 1 vorgesehenen Druckspeicherraum 19 angeschlossen ist.In the working cylinders 4 there are 5 springs 17 below the pistons which push the pistons 5 upwards in the basic position. In the upper part of the working cylinders 4, a feed channel 18 opens out at the side, the other end of which is connected to a pressure storage space 19 provided inside the blanket cylinder 1.

Der Druckspeicherraum 19 ist über ein in eine Seitenwand 20 des Gummituchzylinders 1 eingesetztes Rückschlagventil 21 mit einem unter Druck stehenden Fluid füllbar.The pressure storage space 19 can be filled with a pressurized fluid via a check valve 21 inserted into a side wall 20 of the blanket cylinder 1.

Ausgehend von der Grundstellung, in der der Druckspeicherraum 19 druckentlastet ist und die Kolben 5 durch die Kraft der Federn 17 nach oben gedrückt sind, soll nunmehr das Zusammenwirken der Teile bei einem Spannvorgang beschrieben werden. Durch die obere Totpunktlage der Kolben 5 ist die Spannleiste 11 über die Kolbenstange 9 ebenfalls angehoben. Ihr äußeres, die Schultern 15 und 16 tragendes Ende ragt dabei soweit aus dem Gummituchzylinder 1 heraus, daß die beiden Ausnehmungen 13 und 14 bequem von der Seite her zugänglich sind. In die Ausnehmungen 13 und 14 werden die beiden verstärkten Enden 22 und 23 eines um den Gummituchzylinder 1 herumgelegten Gummituches 24 eingelegt.Starting from the basic position, in which the pressure storage space 19 is relieved of pressure and the pistons 5 are pressed upwards by the force of the springs 17, the interaction of the parts during a clamping operation will now be described. Due to the top dead center position of the pistons 5, the clamping bar 11 is also raised via the piston rod 9. Your outer, the shoulders 15 and 16 carrying end protrudes so far out of the blanket cylinder 1 that the two recesses 13 and 14 are easily accessible from the side. In the recesses 13 and 14, the two reinforced ends 22 and 23 of a blanket 24 laid around the blanket cylinder 1 are inserted.

Über das Rückschlagventil 21 wird der Druckspeicherraum 19 mit einem unter Druck stehenden Fluid - beispielsweise Druckluft - gefüllt. Das Fluid gelangt über die Zufuhrkanäle 18 in die oberhalb der Kolben 5 gelegenen Arbeitsräume der Arbeitszylinder 4. Wenn die Kraft, die das Produkt aus Fluiddruck und Kreisringsfläche an der Oberseite der Kolben 5 ergibt (bei Vernachlässigung des Eigengewichtes der bewegten Teile) die Druckkraft der Federn 17 übersteigt, werden die Kolben 5 nach unten bewegt und die Spannleiste 11 wird über die Kolbenstangen 9 langsam nach unten gezogen. Durch die gesteuerte Drucksteigerung kann das Gummituch 24 - unabhängig von geringfügigen Längendifferenzen - mit einer genau definierten Spannung beaufschlagt werden.Via the check valve 21, the pressure storage space 19 is filled with a pressurized fluid, for example compressed air. The fluid reaches the working spaces of the working cylinders 4 above the pistons 5 via the supply channels 18 17 exceeds, the pistons 5 are moved downward and the clamping bar 11 is slowly pulled down over the piston rods 9. Due to the controlled pressure increase, the rubber blanket 24 can be subjected to a precisely defined tension, regardless of slight length differences.

Zur Entfernung des Gummituches wird einfach der Druckspeicherraum 19 über das Ventil 21 oder ein spezielles, nicht dargestelltes Entlastungsventil vom Speicherdruck entlastet.To remove the rubber blanket, the pressure storage space 19 is simply relieved of the storage pressure via the valve 21 or a special relief valve (not shown).

Bei einer anderen, in Fig. 3 dargestellten Variante, ist die Feder 17ʹ oberhalb des Kolbens 5 im Arbeitszylinder 4 angeordnet. Ihre Druckkraft hält die Spannleiste 11 in Grundstellung in der Grube 2. Der Zufuhrkanal 18ʹ mündet in den unteren Teil des Arbeitszylinders 4 ein. Eine Beaufschlagung des Kolbens 5 mit Energie erfolgt dementsprechend nur zum Ausfahren der Spannleiste 11 für einen Wechsel des Gummituches 24. Während des Betriebes ist der Druckspeicherraum 19 im Zylinderinneren dagegen druckentlastet.In another variant, shown in FIG. 3, the spring 17ʹ is arranged above the piston 5 in the working cylinder 4. The clamping bar 11 holds its compressive force in the basic position in the pit 2. The feed channel 18ʹ opens into the lower part of the working cylinder 4. Accordingly, energy is applied to the piston 5 only for extending the tensioning strip 11 for a change of the rubber blanket 24. During operation, the pressure storage space 19 in the interior of the cylinder is relieved of pressure.

Statt Druckluft ist ebenso die Anwendung von Drucköl denkbar. Als Energie für die Betätigung der Kolben 5 käme jedoch auch die elektromagnetische Kraft einer stromdurchflossenen Spule in Frage, die beispielsweise im unteren Teil des Arbeitszylinders den Kolben umgeben könnte.Instead of compressed air, the use of compressed oil is also conceivable. However, the electromagnetic force of a current-carrying coil, which could surround the piston, for example, in the lower part of the working cylinder, could also be considered as energy for actuating the pistons 5.

Claims (5)

1. Spannvorrichtung zur Befestigung eines Aufzuges am Zylinder einer Rotationsdruckmaschine - vorzugsweise Gummituchspannvorrichtung am Gummituchzylinder einer Rollenoffset- Rotationsdruckmaschinen - mit einer achsparallel im Zylindermantel verlaufenden Grube und einer in dieser beim Spannvorgang radial nach innen bewegbaren Spannleiste, die in ihrem nach außen weisenden Oberteil auf beiden Seiten höhengleich je eine Ausnehmung zur Aufnahme der Enden des Aufzuges aufweist, sowie mit im Boden der Grube verankerten, an der Spannleiste befestigten Spannmitteln, dadurch gekennzeichnet, daß die Spannmittel aus mehreren in gleichmäßigem Abstand im Grubenboden (3) angeordneten Arbeitszylindern (4) und in diesen axial beweglichen Kolben (5) bestehen, die zumindest während des Spannvorgangs mit einer über das Zylinderinnere zuführbaren Energie gleichzeitig beaufschlagbar sind.1.Tensioning device for fastening an elevator to the cylinder of a rotary printing press - preferably blanket tensioning device on the blanket cylinder of a web offset rotary printing press - with a pit running axially parallel in the cylinder jacket and a clamping bar which can be moved radially inward during the tensioning process and which has an outwardly facing upper part on both sides Equal in height each has a recess for receiving the ends of the elevator, as well as with clamping means anchored in the floor of the pit and fastened to the tensioning bar, characterized in that the tensioning means consist of several working cylinders (4) arranged in the pit floor (3) and in these at a uniform distance there are axially movable pistons (5) which can be acted upon at the same time with an energy which can be supplied via the cylinder interior, at least during the tensioning process. 2. Spannvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Kolben (5) während des Spannvorgangs gegen die Kraft einer in jedem Arbeitszylinder (4) angeordneten Feder (17, 17ʹ) bewegbar ist.2. Clamping device according to claim 1, characterized in that the piston (5) is movable during the clamping process against the force of a spring (17, 17ʹ) arranged in each working cylinder (4). 3. Spannvorrichtung nach Anspruch 1 oder 2 dadurch gekennzeichnet, daß die Arbeitszylinder (4) durch Sacklöcher gebildet werden, die vom Grubenboden (3) aus radial einwärts verlaufen und die am Grubenboden (3) jeweils von einer mit einer zentralen Durchlaßbohrung (8) versehenen Abdeckplatte (6) verschlossen sind.3. Clamping device according to claim 1 or 2, characterized in that the working cylinders (4) are formed by blind holes which extend radially inwards from the pit floor (3) and which are each provided with a central through-bore (8) on the pit floor (3) Cover plate (6) are closed. 4. Spannvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Kolben (5) mittels die Durchlaßbohrungen (8) durchdringende Kolbenstangen (9) mit der Spannleiste (11) verbunden sind.4. Clamping device according to one of claims 1 to 3, characterized in that the pistons (5) by means of the passage bores (8) penetrating piston rods (9) are connected to the clamping bar (11). 5. Spannvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß als Energie ein unter Druck stehendes Fluid verwendet wird, das von einem im Zylinderinneren angeordneten Druckspeicherraum (19) über Zufuhrkanäle (18, 18ʹ) dem Arbeitszylinder (4) zuführbar ist.5. Clamping device according to one of claims 1 to 4, characterized in that a pressurized fluid is used as energy, which can be supplied to the working cylinder (4) from a pressure storage space (19) arranged in the cylinder interior via supply channels (18, 18ʹ).
EP19880103685 1987-03-05 1988-03-09 Tensioning device for securing a cover to the cylinder of a rotary printing machine Expired - Lifetime EP0331777B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19873707066 DE3707066A1 (en) 1987-03-05 1987-03-05 Clamping device for attaching a dressing to the cylinder of a rotary printing machine
EP19880103685 EP0331777B1 (en) 1988-03-09 1988-03-09 Tensioning device for securing a cover to the cylinder of a rotary printing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19880103685 EP0331777B1 (en) 1988-03-09 1988-03-09 Tensioning device for securing a cover to the cylinder of a rotary printing machine

Publications (2)

Publication Number Publication Date
EP0331777A1 true EP0331777A1 (en) 1989-09-13
EP0331777B1 EP0331777B1 (en) 1991-09-04

Family

ID=8198788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880103685 Expired - Lifetime EP0331777B1 (en) 1987-03-05 1988-03-09 Tensioning device for securing a cover to the cylinder of a rotary printing machine

Country Status (1)

Country Link
EP (1) EP0331777B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080014A (en) * 1989-10-14 1992-01-14 Heidelberger Druckmaschinen Ag Device for elastically deforming a printing plate
EP0638421A1 (en) * 1993-08-05 1995-02-15 KOENIG &amp; BAUER-ALBERT AKTIENGESELLSCHAFT Blanket or impression cylinder
WO1997047472A1 (en) * 1996-06-13 1997-12-18 Mark Andy Inc. Clamping and tensioning device for printing plates
EP0974459A1 (en) * 1998-07-20 2000-01-26 Heidelberger Druckmaschinen Aktiengesellschaft Blanket cylinder in a rotary press

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555037A1 (en) * 1975-12-06 1977-06-08 Philips Patentverwaltung Rotatable drum scanning unit holding recording sheet - has sheet at its edges and inserted into longitudinal slot in drum
EP0095954A1 (en) * 1982-05-27 1983-12-07 Jean Pierre Cuir Device for mounting a platen on a cylinder
DE3707066A1 (en) * 1987-03-05 1988-09-15 Roland Man Druckmasch Clamping device for attaching a dressing to the cylinder of a rotary printing machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555037A1 (en) * 1975-12-06 1977-06-08 Philips Patentverwaltung Rotatable drum scanning unit holding recording sheet - has sheet at its edges and inserted into longitudinal slot in drum
EP0095954A1 (en) * 1982-05-27 1983-12-07 Jean Pierre Cuir Device for mounting a platen on a cylinder
DE3707066A1 (en) * 1987-03-05 1988-09-15 Roland Man Druckmasch Clamping device for attaching a dressing to the cylinder of a rotary printing machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080014A (en) * 1989-10-14 1992-01-14 Heidelberger Druckmaschinen Ag Device for elastically deforming a printing plate
EP0638421A1 (en) * 1993-08-05 1995-02-15 KOENIG &amp; BAUER-ALBERT AKTIENGESELLSCHAFT Blanket or impression cylinder
US5461981A (en) * 1993-08-05 1995-10-31 Koenig & Bauer Aktiengesellschaft Press blanket cylinder with blanket end ejection device
WO1997047472A1 (en) * 1996-06-13 1997-12-18 Mark Andy Inc. Clamping and tensioning device for printing plates
US5735211A (en) * 1996-06-13 1998-04-07 Mark Andy, Inc. Clamping and tensioning device for printing plates
EP0974459A1 (en) * 1998-07-20 2000-01-26 Heidelberger Druckmaschinen Aktiengesellschaft Blanket cylinder in a rotary press

Also Published As

Publication number Publication date
EP0331777B1 (en) 1991-09-04

Similar Documents

Publication Publication Date Title
EP0136435A1 (en) Working cylinder with braking device
EP0143257B1 (en) Tool holding fixture for a punching press, particularly of a turret cutting press for tool changing
DE3935787C2 (en)
DE10324330A1 (en) Plate cylinder of a printing press
EP0331777B1 (en) Tensioning device for securing a cover to the cylinder of a rotary printing machine
DE3935498C3 (en) Switchable press device for machining workpieces
DE1939358A1 (en) Device for exerting tensile forces on printing forms in printing machines
DE2621727A1 (en) PRESS WITH CHANGEABLE DISTANCE OF A PLUNGER FROM A TABLE AND RELEASABLE PRESSURE CUSHION
DE3707066A1 (en) Clamping device for attaching a dressing to the cylinder of a rotary printing machine
EP0605698B1 (en) Articulated lever press
DE3025156A1 (en) Punching press with locking plates - has clamping cylinder-operated locking elements engaging with slot in tool bottom parts
DE3025157A1 (en) Forging die clamped on press table - by hydraulically releasable spring loaded bolt with other spring to retract it below table surface
EP0046977B1 (en) Hydraulically actuated stretching device for stretching saw blades in a gang saw
DE2250924C3 (en) Climbing hoist for lifting or lowering large loads
DE3138147C1 (en) Power-operated valve spring clamping device, in particular for internal combustion engines
DE2510083C3 (en) Climbing lifting device
EP0919729A2 (en) Cylinder with antirotationally guided piston rod
DE19541721A1 (en) Hydraulic drawing unit in press
DE2500282A1 (en) Printing plate holder for offset printing machines - has plate holding pins which are retracted by screws in clamping profile
EP1048377B1 (en) Device for the continuous casting of metal
EP0713735B1 (en) Clamping device between the upper and lower tool of a press
EP0671227B1 (en) Tool clamping device for a bending press
DE19638283C1 (en) Workpiece clamp for hydraulic press
DE3115847C2 (en)
DE4314555C2 (en) Device to support the changing of sealing felts in cocoa butter presses

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR GB IT LI SE

RBV Designated contracting states (corrected)

Designated state(s): CH FR GB IT LI SE

17P Request for examination filed

Effective date: 19890918

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17Q First examination report despatched

Effective date: 19910212

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH FR GB IT LI SE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 88103685.9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19980219

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990310

EUG Se: european patent has lapsed

Ref document number: 88103685.9

EUG Se: european patent has lapsed

Ref document number: 88103685.9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20000211

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000221

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000224

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010331

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20010309

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050309