EP0316586A2 - Gripper point for a sheet-gripping device - Google Patents

Gripper point for a sheet-gripping device Download PDF

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Publication number
EP0316586A2
EP0316586A2 EP88117191A EP88117191A EP0316586A2 EP 0316586 A2 EP0316586 A2 EP 0316586A2 EP 88117191 A EP88117191 A EP 88117191A EP 88117191 A EP88117191 A EP 88117191A EP 0316586 A2 EP0316586 A2 EP 0316586A2
Authority
EP
European Patent Office
Prior art keywords
gripper
sheet
bead
elevation
gripper tip
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
EP88117191A
Other languages
German (de)
French (fr)
Other versions
EP0316586A3 (en
EP0316586B1 (en
Inventor
Werner Dr. Sondergeld
Nikolaus Matentzoglu
Nikola Pupic
Manfred Rüger
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.)
MULTI-ARC GmbH
Manroland AG
Multi Arc GmbH
Original Assignee
MULTI-ARC GmbH
MAN Roland Druckmaschinen AG
Multi Arc GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MULTI-ARC GmbH, MAN Roland Druckmaschinen AG, Multi Arc GmbH filed Critical MULTI-ARC GmbH
Priority to AT88117191T priority Critical patent/ATE86547T1/en
Publication of EP0316586A2 publication Critical patent/EP0316586A2/en
Publication of EP0316586A3 publication Critical patent/EP0316586A3/en
Application granted granted Critical
Publication of EP0316586B1 publication Critical patent/EP0316586B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
    • 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
    • B41F21/04—Grippers
    • 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
    • B41F21/104—Gripper details

Definitions

  • the invention relates to a gripper tip according to the preamble of the first claim.
  • the quality of the print depends to a large extent on the ability of the successive gripper systems to hold the sheet securely, i. H. to prevent slipping and to maintain the original register position while the machine is running.
  • the use of coated papers and strict colors places great demands on the devices that ensure registration.
  • a gripper tip with a profiled holding surface which has a corrugation parallel to the leading edge of the sheet. It is disadvantageous that the corrugation greatly hinders the removal of the paper abrasion when processing heavily dusty substrates. Even the slightest accumulation of paper abrasion affects the coefficient of friction and the static friction between the holding surface of the gripper tip and the holding surface of the sheet gripper support that cooperates with it. In addition, the bead-like elevations of the gripper tip are quickly removed by the grinding effect of the paper and the impact on the gripper pad, so that the positive locking and static friction are reduced again.
  • the object of the invention is to provide a gripper tip in which the setting of dirt, paper abrasion or the like is reliably prevented without the holding force of the gripper tip being impaired thereby.
  • Figure 1 shows a sheet gripper device for detecting and forwarding sheets 6.
  • a sheet gripper 2 On a gripper shaft 1, a sheet gripper 2 is attached, which is provided with an interchangeable gripper tip 3, which profiled Has holding surface. Opposite the gripper tip 3, a sheet gripper pad 5 is arranged, the holding surface z. B. from a smooth, hard or elastic material, for. B. plastic can exist.
  • the sheet 6 lies between the gripper tip 3 and the sheet gripper pad 5.
  • FIGS. 2 to 5 show the design of the gripper tip 3 according to the invention, specifically according to FIGS. 2 and 3 in a first embodiment and according to FIGS. 4 and 5 in a second embodiment.
  • the profiled holding surface of the gripper tip 3 consists of a single bead-like elevation 4 that comes into contact with the arch 6 and runs parallel to the front edge of the arch 6 on the front part of the gripper tip 3.
  • the only bead-like elevation 9 is designed in a U-shape around an opening 7.
  • the bead radius R is 0.4-1.0 mm.
  • the bead-like elevation 4 is coated with a hard material 8, which consists in particular of titanium nitride, fine grain metal oxides, or fine grain metal carbides of the metals chromium, tungsten, titanium or aluminum.
  • the U-shaped bead-like elevation 9 according to FIG. 4 has the opposite to the bead-like elevation 4 according to FIG Advantage that at the two ends of the bulge-like elevation no compressive stresses that characterize the paper cannot occur.
  • the free spaces 10 and the opening 7 in the gripper tip 3 ensure that the dirt is removed quickly or prevent dirt from accumulating on the relatively smooth, open profile.
  • the high holding force of the gripper tip 3 is maintained over a long service life even when printing very dusty substrates, when there is a risk of dirt and the like. Manufacturing tolerances and setting errors are less noticeable with this gripper tip 3. It is important that the bead radius R is not chosen too small, since otherwise the arch 6 is damaged or embossed, and that the bead radius R is not chosen too large, because then the line pressure is too low.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Advancing Webs (AREA)
  • Clamps And Clips (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Sanitary Thin Papers (AREA)

Abstract

In order to produce a gripper point which no longer causes paper debris, dirt or the like to collect, its profiled gripper surface features a single bead-like swelling (4) at the leading edge which comes into contact with the paper (6), the swelling having a radius (R) of 0.4 - 1.0 mm, running parallel to the leading edge of the sheet (6) and being coated with a hard material (8). <IMAGE>

Description

Die Erfindung betrifft eine Greiferspitze nach dem Ober­begriff des ersten Patentanspruches.The invention relates to a gripper tip according to the preamble of the first claim.

Bei bogenver- und -bearbeitenden Maschinen, insbesondere Mehrfarben-Rotationsdruckmaschinen hängt die Qualität des Druckes im großen Maße von der Fähigkeit der aufeinander­folgenden Greifersysteme ab, den Bogen sicher zu halten, d. h. ein Verrutschen zu verhindern und die ursprüngliche Passerlage während des Maschinenlaufes beizubehalten. Durch den Einsatz gestrichener Papiere und strenger Farben werden große Anforderungen an die Passerhaltigkeit bewirkende Einrichtungen gestellt. Neben der Möglichkeit durch formschlüssige Gestaltung der Halteflächen der Greifereinrichtungen die Haftreibung zu vergrößern, besteht die Möglichkeit der Vergrößerung der Haltekräfte durch Erhöhung des Druckes zwischen den Halteflächen, d. h. des Kraftschlusses.In the case of sheet processing and processing machines, in particular multicolor rotary printing machines, the quality of the print depends to a large extent on the ability of the successive gripper systems to hold the sheet securely, i. H. to prevent slipping and to maintain the original register position while the machine is running. The use of coated papers and strict colors places great demands on the devices that ensure registration. In addition to the possibility of increasing the static friction by form-fitting design of the holding surfaces of the gripper devices, there is the possibility of increasing the holding forces by increasing the pressure between the holding surfaces, i. H. of the adhesion.

Aus der DE-OS 2 421 346 ist eine Greiferspitze mit einer profilierten Haltefläche bekannt, die eine Riffelung parallel zur Bogenvorderkante aufweist. Von Nachteil ist, daß die Riffelung beim Verarbeiten stark staubender Bedruckstoffe die Abfuhr des Papierabriebes stark behindert. Auch die geringste Ansammelung von Papierabrieb beeinträchtigt den Reibwert und die Haftreibung zwischen der Haltefläche der Greiferspitze und der mit dieser zusammenwirkenden Haltefläche der Bogengreiferauflage. Außerdem werden die wulstartigen Erhöhungen der Greifer­spitze durch die schleifende Wirkung des Papiers und das Aufschlagen auf die Greiferauflage schnell abgetragen, so daß der Formschluß und die Haftreibung wieder verringert werden.From DE-OS 2 421 346 a gripper tip with a profiled holding surface is known, which has a corrugation parallel to the leading edge of the sheet. It is disadvantageous that the corrugation greatly hinders the removal of the paper abrasion when processing heavily dusty substrates. Even the slightest accumulation of paper abrasion affects the coefficient of friction and the static friction between the holding surface of the gripper tip and the holding surface of the sheet gripper support that cooperates with it. In addition, the bead-like elevations of the gripper tip are quickly removed by the grinding effect of the paper and the impact on the gripper pad, so that the positive locking and static friction are reduced again.

Aufgabe der Erfindung ist es, eine Greiferspitze zu schaffen, bei welcher das Festsetzen von Schmutz, Papier­abrieb oder dergleichen sicher verhindert ist, ohne daß dadurch die Haltekraft der Greiferspitze beeinträchtigt wird.The object of the invention is to provide a gripper tip in which the setting of dirt, paper abrasion or the like is reliably prevented without the holding force of the gripper tip being impaired thereby.

Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des ersten Patentanspruches. Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen in Ver­bindung mit der Zeichnung und der Beschreibung.This object is achieved by the characterizing features of the first claim. Further developments of the invention result from the subclaims in connection with the drawing and the description.

Die Erfindung soll nachstehend an einem Ausführungs­beispiel näher erläutert werden.The invention will be explained in more detail below using an exemplary embodiment.

Es zeigt:

  • Fig. 1 eine Bogengreifereinrichtung,
  • Fig. 2 die Ansicht Y nach Figur 1 auf die Greiferspitze,
  • Fig. 3 die Einzelheit X nach Figur 1 in ver­größertem Maßstab,
  • Fig. 4 eine zweite Ausführungsform der Greifer­spitze,
  • Fig. 5 den Schnitt AB nach Figur 4 in einem vergrößerten Maßstab.
It shows:
  • 1 is a sheet gripper device,
  • 2 shows the view Y according to FIG. 1 on the gripper tip,
  • 3 shows the detail X according to FIG. 1 on an enlarged scale,
  • 4 shows a second embodiment of the gripper tip,
  • Fig. 5 shows the section AB of Figure 4 on an enlarged scale.

Figur 1 zeigt eine Bogengreifereinrichtung zum Erfassen und Weiterleiten von Bogen 6. Auf einer Greiferwelle 1 ist ein Bogengreifer 2 befestigt, der mit einer auswechsel­baren Greiferspitze 3 versehen ist, die eine profilierte Haltefläche aufweist. Gegenüber der Greiferspitze 3 ist eine Bogengreiferauflage 5 angeordnet, deren Haltefläche z. B. aus einem glatten, harten oder elastischen Material, z. B. Kunststoff, bestehen kann.Figure 1 shows a sheet gripper device for detecting and forwarding sheets 6. On a gripper shaft 1, a sheet gripper 2 is attached, which is provided with an interchangeable gripper tip 3, which profiled Has holding surface. Opposite the gripper tip 3, a sheet gripper pad 5 is arranged, the holding surface z. B. from a smooth, hard or elastic material, for. B. plastic can exist.

Zwischen der Greiferspitze 3 und der Bogengreiferauflage 5 liegt der Bogen 6.The sheet 6 lies between the gripper tip 3 and the sheet gripper pad 5.

Der weitere Aufbau der Bogengreifereinrichtung ist bekannt und wird nicht näher beschrieben.The further structure of the sheet gripper device is known and will not be described in detail.

Die Figuren 2 bis 5 zeigen die erfindungsgemäße Ausbildung der Greiferspitze 3 und zwar gemäß Figur 2 und 3 in einer ersten und gemäß Figur 4 und 5 in einer zweiten Aus­führungsform.FIGS. 2 to 5 show the design of the gripper tip 3 according to the invention, specifically according to FIGS. 2 and 3 in a first embodiment and according to FIGS. 4 and 5 in a second embodiment.

Die profilierte Haltefläche der Greiferspitze 3 besteht gemäß Figur 2 und Figur 3 aus einer einzigen mit dem Bogen 6 in Berührung kommenden wulstartigen Erhebung 4, die am vorderen Teil der Greiferspitze 3 parallel zur Vorderkante des Bogens 6 verläuft. Gemäß Figur 4 und Figur 5 ist die einzige wulstartige Erhebung 9 u-förmig ausgebildet um einen Durchbruch 7 herumgeführt.According to FIG. 2 and FIG. 3, the profiled holding surface of the gripper tip 3 consists of a single bead-like elevation 4 that comes into contact with the arch 6 and runs parallel to the front edge of the arch 6 on the front part of the gripper tip 3. According to FIG. 4 and FIG. 5, the only bead-like elevation 9 is designed in a U-shape around an opening 7.

Der Wulstradius R beträgt erfindungsgemäß 0,4 - 1,0 mm.According to the invention, the bead radius R is 0.4-1.0 mm.

Zur Erhöhung der Verschleißfestigkeit wird die wulstartige Erhebung 4 mit einem Hartstoff 8 beschichtet, der ins­besondere aus Titannitrid, Feinstkornmetalloxyden, bzw. Feinstkornmetallkarbiden der Metalle Chrom, Wolfram, Titan oder Aluminium besteht.To increase the wear resistance, the bead-like elevation 4 is coated with a hard material 8, which consists in particular of titanium nitride, fine grain metal oxides, or fine grain metal carbides of the metals chromium, tungsten, titanium or aluminum.

Die u-förmige wulstartige Erhebung 9 gemäß Figur 4 hat gegenüber der wulstartigen Erhebung 4 gemäß Figur 2 den Vorteil, daß an den beiden Enden der wulstartigen Erhebung keine das Papier unzulässig prägende Druckspannungen auftreten können. Die Freiräume 10 und der Durchbruch 7 in der Greiferspitze 3 gewährleisten eine schnelle Abführung des Schmutzes bzw. verhindern eine Schmutzansammlung am relativ glatten, offenen Profil.The U-shaped bead-like elevation 9 according to FIG. 4 has the opposite to the bead-like elevation 4 according to FIG Advantage that at the two ends of the bulge-like elevation no compressive stresses that characterize the paper cannot occur. The free spaces 10 and the opening 7 in the gripper tip 3 ensure that the dirt is removed quickly or prevent dirt from accumulating on the relatively smooth, open profile.

Die hohe Haltekraft der Greiferspitze 3 bleibt über eine lange Lebensdauer auch beim Verdrucken stark staubender Bedruckstoffe, bei Schmutzgefahr und dergleichen erhalten. Fertigungstoleranzen und Einstellfehler machen sich bei dieser Greiferspitze 3 weniger bemerkbar. Wichtig ist, daß der Wulstradius R nicht zu klein gewählt wird, da sonst der Bogen 6 beschädigt bzw. geprägt wird und daß der Wulstradius R nicht zu groß gewählt wird, weil dann die Linienpressung zu gering ist.The high holding force of the gripper tip 3 is maintained over a long service life even when printing very dusty substrates, when there is a risk of dirt and the like. Manufacturing tolerances and setting errors are less noticeable with this gripper tip 3. It is important that the bead radius R is not chosen too small, since otherwise the arch 6 is damaged or embossed, and that the bead radius R is not chosen too large, because then the line pressure is too low.

BezugszeichenlisteReference symbol list

  • 1 Greiferwelle1 gripper shaft
  • 2 Bogengreifer2 bow grabs
  • 3 Greiferspitze3 gripper tip
  • 4 wulstartige Erhebung4 bead-like elevation
  • 5 Bogengreiferauflage5 sheet gripper pad
  • 6 Bogen6 sheets
  • 7 Durchbruch7 breakthrough
  • 8 Hartstoffbeschichtung8 hard material coating
  • 9 u-förmig wulstartige Erhebung9 U-shaped bead-like elevation
  • 10 Freiraum10 free space

Claims (2)

1.) Greiferspitze für eine Bogengreifereinrichtung an bogenbe- und -verarbeitenden Maschinen, deren profilierte Haltefläche mit der Haltefläche einer Bogengreiferauflage zusammenwirkt,
dadurch gekennzeichnet,
daß die profilierte Haltefläche der Greiferspitze (3) am vorderen Teil eine einzige mit dem Bogen (6) in Berührung kommende wulstartige Erhebung (4) parallel zur Vorderkante des Bogens (6) aufweist, daß die wulstartige Erhebung (4) mit einem Wulstradius (R) von 0,4 - 1,0 mm versehen ist und daß die wulstartige Erhebung (4) mit einem Hartstoff (8) beschichtet ist.1.) gripper tip for a sheet gripper device on sheet processing and processing machines, the profiled holding surface of which cooperates with the holding surface of a sheet gripper pad,
characterized,
that the profiled holding surface of the gripper tip (3) at the front part has a single bead-like elevation (4) coming into contact with the arch (6) parallel to the front edge of the arch (6), that the bead-like elevation (4) with a bead radius (R ) of 0.4 - 1.0 mm and that the bead-like elevation (4) is coated with a hard material (8). 2.) Greiferspitze nach Anspruch 1,
dadurch gekennzeichnet,
daß die wulstartige Erhebung (4) u-förmig (9) um einen Durchbruch (7) der Greiferspitze (3) herumgeführt ist.2.) gripper tip according to claim 1,
characterized,
that the bead-like elevation (4) is U-shaped (9) around an opening (7) of the gripper tip (3).
EP88117191A 1987-11-19 1988-10-15 Gripper point for a sheet-gripping device Expired - Lifetime EP0316586B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88117191T ATE86547T1 (en) 1987-11-19 1988-10-15 GRIPPER TIP FOR A SHEET GRIPPER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3739169A DE3739169C1 (en) 1987-11-19 1987-11-19 Gripper tip for a bow gripper device
DE3739169 1987-11-19

Publications (3)

Publication Number Publication Date
EP0316586A2 true EP0316586A2 (en) 1989-05-24
EP0316586A3 EP0316586A3 (en) 1990-09-26
EP0316586B1 EP0316586B1 (en) 1993-03-10

Family

ID=6340774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117191A Expired - Lifetime EP0316586B1 (en) 1987-11-19 1988-10-15 Gripper point for a sheet-gripping device

Country Status (7)

Country Link
US (1) US4970955A (en)
EP (1) EP0316586B1 (en)
JP (1) JPH0741710B2 (en)
AT (1) ATE86547T1 (en)
BR (1) BR8805997A (en)
DE (2) DE3739169C1 (en)
ES (1) ES2039547T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4241588C2 (en) * 1992-12-10 1994-11-17 Roland Man Druckmasch Page register system for printing forms
DE4321850A1 (en) * 1993-07-01 1995-01-12 Roland Man Druckmasch Grippers for sheet-fed printing machines
JP4753542B2 (en) * 2003-06-05 2011-08-24 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト Holding device for substrate processing machine
DE102005038595B4 (en) * 2004-09-08 2021-06-24 Heidelberger Druckmaschinen Ag Substrate sheet gripper
JP4836525B2 (en) 2004-09-08 2011-12-14 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト Printed sheet of paper
DE102006024588B4 (en) 2005-06-17 2019-03-14 Heidelberger Druckmaschinen Ag Holding surfaces on a gripper for conveying sheets through a printing system
JP2008254264A (en) * 2007-04-03 2008-10-23 Komori Corp Gripper device in sheet-fed rotary press and manufacturing method thereof
DE202023001595U1 (en) 2023-07-29 2023-09-25 Klemens Kemmerer Gripper tip for sheet transport

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460785A1 (en) * 1979-07-02 1981-01-30 Polygraph Leipzig Holding surface for manipulators in sheet processing equipment - is coated with fine grain metal oxide(s) or carbide(s)
DE3041056A1 (en) * 1980-02-29 1981-09-10 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Paper sheet feed installation - has sheet grip holding surface and sheet grip stop working together and fitted with patterned sheet grip holding surface
DE3220562A1 (en) * 1981-11-11 1983-05-19 Tokyo Diamond Tools Mfg. Co. Ltd., Tokyo Sheet gripper for a sheet feeder in a sheet-fed press
US4629176A (en) * 1984-12-07 1986-12-16 Xerox Corporation Paper gripper bar
DE8706950U1 (en) * 1987-05-14 1987-07-09 M.A.N.- Roland Druckmaschinen Ag, 6050 Offenbach, De

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Publication number Priority date Publication date Assignee Title
US2681006A (en) * 1953-01-19 1954-06-15 Jr William B Leavens Multicolor printing ink and printing plate testing press
US3937642A (en) * 1971-02-20 1976-02-10 Hermann Kronseder Labeling device with an installation for marking labels
DD108710A1 (en) * 1973-10-01 1974-10-05
CH589517A5 (en) * 1974-03-28 1977-07-15 Heidelberger Druckmasch Ag
DE2557866B2 (en) * 1975-12-22 1977-11-03 Heidelberger Druckmaschinen Ag, 6900 Heidelberg ROTATING LOOP DRUM
DE2606347A1 (en) * 1976-02-18 1977-08-25 Maschf Augsburg Nuernberg Ag FLEXIBLE GRIPPER CARRIAGE, IN PARTICULAR FOR OFFSET PRINTING MACHINES, AND METHODS FOR MANUFACTURING FLEXIBLE GRIPPER CARRIAGE STRUCTURES
DD154083A1 (en) * 1980-11-17 1982-02-24 Arndt Jentzsch ARCH OVERALL DEVICE
DE3403893A1 (en) * 1984-02-04 1985-08-14 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach COUNTERPRINT CYLINDERS FOR A BOW OFFSETROTATION PRINTING MACHINE
DE8404981U1 (en) * 1984-02-18 1984-05-10 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach BOW GRIPPERS FOR PRINTING MACHINES
JPS63208455A (en) * 1987-02-24 1988-08-29 Nippon Kodatsuku Kk Paper fixing mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460785A1 (en) * 1979-07-02 1981-01-30 Polygraph Leipzig Holding surface for manipulators in sheet processing equipment - is coated with fine grain metal oxide(s) or carbide(s)
DE3041056A1 (en) * 1980-02-29 1981-09-10 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Paper sheet feed installation - has sheet grip holding surface and sheet grip stop working together and fitted with patterned sheet grip holding surface
DE3220562A1 (en) * 1981-11-11 1983-05-19 Tokyo Diamond Tools Mfg. Co. Ltd., Tokyo Sheet gripper for a sheet feeder in a sheet-fed press
US4629176A (en) * 1984-12-07 1986-12-16 Xerox Corporation Paper gripper bar
DE8706950U1 (en) * 1987-05-14 1987-07-09 M.A.N.- Roland Druckmaschinen Ag, 6050 Offenbach, De

Also Published As

Publication number Publication date
EP0316586A3 (en) 1990-09-26
EP0316586B1 (en) 1993-03-10
BR8805997A (en) 1989-08-08
ATE86547T1 (en) 1993-03-15
JPH01259948A (en) 1989-10-17
JPH0741710B2 (en) 1995-05-10
DE3879105D1 (en) 1993-04-15
DE3739169C1 (en) 1989-06-01
ES2039547T3 (en) 1993-10-01
US4970955A (en) 1990-11-20

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