EP0648700B1 - Device for adjusting the grippers opening cam of a chain delivery system of a sheet printing machine - Google Patents

Device for adjusting the grippers opening cam of a chain delivery system of a sheet printing machine Download PDF

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Publication number
EP0648700B1
EP0648700B1 EP94115089A EP94115089A EP0648700B1 EP 0648700 B1 EP0648700 B1 EP 0648700B1 EP 94115089 A EP94115089 A EP 94115089A EP 94115089 A EP94115089 A EP 94115089A EP 0648700 B1 EP0648700 B1 EP 0648700B1
Authority
EP
European Patent Office
Prior art keywords
control shaft
gripper opening
adjusting device
lever arm
opening cam
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.)
Expired - Lifetime
Application number
EP94115089A
Other languages
German (de)
French (fr)
Other versions
EP0648700A1 (en
Inventor
Udo Ganter
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0648700A1 publication Critical patent/EP0648700A1/en
Application granted granted Critical
Publication of EP0648700B1 publication Critical patent/EP0648700B1/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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/045—Details of grippers
    • B65H29/047—Gripper opening devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to an adjusting device for a gripper opening curve in a chain boom for the sheet delivery in a sheet-fed printing press.
  • an adjusting device which has these design features is known from US-A-3 109 644.
  • An adjusting device is known from DE-C-3 002 591, the gripper opening curve being arranged on the axis of the chain deflection on the rear side of the sheet stack and being adjustable by pivoting about this axis, thereby changing the gripper opening time to adapt to different printing materials and others To enable operational influences.
  • the gripper opening curve is connected via a coupling to a lever which is arranged on a shaft mounted transversely to the sheet transport in the machine frame and can be pivoted about the axis of this shaft by means of a worm gear.
  • the worm wheel of the worm gear is seated on an actuating shaft which is also mounted in the machine housing and can be rotated by a handwheel or the like. Several turns of the handwheel or adjusting shaft are required to drive through the entire setting angle.
  • Means for displaying the position of the gripper opening curve which are independent of the setting device are also known.
  • the gripper opening curve 1 is arranged on the shaft 2 of the chain wheel 3 for an endlessly rotating transport chain of a chain delivery for sheet delivery in a sheet printing machine. Another sprocket for deflecting another transport chain is located on the other side of the machine.
  • One end of a gripper carriage is attached to each of the transport chains, in which sheet grippers are arranged on gripper bridges and are opened by the gripper opening curve 1 in the region of the stack delivery.
  • roller levers are provided on the grippers, whose rollers run against the gripper opening curve 1.
  • the adjusting device for adapting the gripper opening time to the printing operation, in particular to different printing materials has an adjusting shaft 4, one end of which is led out of the machine housing 5 in the access area and carries a detectable handwheel 6.
  • the other end of this actuating shaft 4 is connected to one arm 7 of an angle lever which is arranged on a shaft 8 which is mounted with its axis transversely to the sheet transport in the machine housing 5.
  • the other arm 9 of the angle lever carries a pin 10 which engages in an elongated hole 11 of the gripper opening curve 1, so that the radial component of the angular movements of the arm 9 compensated and only the tangential component is transferred to the gripper opening curve 1.
  • the coupling gear between the rotary movement of the actuating shaft 4 and the shaft 8 according to the invention consists of a combination of a left / right-hand thread.
  • the adjusting shaft 4 can be screwed to a spindle thread 12 in a spindle nut 13, which is fixedly arranged on the machine housing 5.
  • an oppositely increasing spindle thread 14 engages in a correspondingly opposite spindle nut 15.
  • This spindle nut 15 is movably mounted in the arm 7 in order to enable this arm to pivot about the axis of the shaft 8 during adjustment.
  • a spring 16 is tensioned between the shaft 8 and the gripper opening curve 1.
  • Stop means are advantageously provided in order to limit the angle of rotation of the actuating shaft to less than 360 °.
  • the example shows a stop pin 17 which is fixedly connected to the actuating shaft 4 and which interacts with a stop pin 18 fixed to the housing.

Description

Die Erfindung bezieht sich auf eine Einstellvorrichtung für eine Greiferöffnungskurve in einem Kettenausleger für die Bogenauslage in einer Bogendruckmaschine nach dem Oberbegriff des Patentanspruches 1.The invention relates to an adjusting device for a gripper opening curve in a chain boom for the sheet delivery in a sheet-fed printing press.

Eine Einstellvorrichtung, welche diese Ausbildungsmerkmale aufweist, ist aus der US-A-3 109 644 bekannt. Aus der DE-C-3 002 591 ist eine Einstellvorrichtung bekannt, wobei die Greiferöffnungskurve auf der Achse der Kettenumlenkung an der hinteren Seite des Bogenstapels angeordnet und durch Schwenkung um diese Achse einstellbar ist, um dadurch Veränderungen des Greiferöffnungszeitpunktes zur Anpassung an unterschiedliche Bedruckstoffe und andere Betriebseinflüsse zu ermöglichen. Dazu ist die Greiferöffnungskurve über eine Koppel mit einem Hebel verbunden, welcher auf einer quer zum Bogentransport im Maschinengestell gelagerten Welle angeordnet und durch ein Schneckengetriebe um die Achse dieser Welle schwenkbar ist. Das Schneckenrad des Schneckengetriebes sitzt auf einer ebenfalls im Maschinengehäuse gelagerten Stellwelle, die durch ein Handrad oder dergleichen verdrehbar ist. Zum Durchfahren des gesamten Stellwinkels sind mehrere Handradumdrehungen bzw. Stellwellendrehungen erforderlich.An adjusting device which has these design features is known from US-A-3 109 644. An adjusting device is known from DE-C-3 002 591, the gripper opening curve being arranged on the axis of the chain deflection on the rear side of the sheet stack and being adjustable by pivoting about this axis, thereby changing the gripper opening time to adapt to different printing materials and others To enable operational influences. For this purpose, the gripper opening curve is connected via a coupling to a lever which is arranged on a shaft mounted transversely to the sheet transport in the machine frame and can be pivoted about the axis of this shaft by means of a worm gear. The worm wheel of the worm gear is seated on an actuating shaft which is also mounted in the machine housing and can be rotated by a handwheel or the like. Several turns of the handwheel or adjusting shaft are required to drive through the entire setting angle.

Aus der DE 20 40 670 ist es bekannt, zur Einstellung der Greiferöffnungskurve für den genannten Zweck einen Schwenkhebel vorzusehen, welcher einen großen Schwenkweg aufweist und dadurch einen großen Einstellwinkelbereich für die Greiferöffnungskurve ermöglicht. Die eingestellte Position der Greiferöffnungskurve wird durch eine für die Verstellung zu lösende Bremse fixiert.From DE 20 40 670 it is known to provide a pivoting lever for setting the gripper opening curve for the purpose mentioned, which has a large pivoting path and thereby enables a large setting angle range for the gripper opening curve. The set position of the gripper opening curve is fixed by a brake to be released for the adjustment.

Bekannt sind außerdem von der Einstellvorrichtung unabhängige Mittel zur Anzeige der Stellung der Greiferöffnungskurve.Means for displaying the position of the gripper opening curve which are independent of the setting device are also known.

Es ist Aufgabe der Erfindung, eine kostengünstige, raumsparende Einstellvorrichtung mit einer Stellspindel für einen großen Einstellwinkelbereich der schwenkbar angeordneten Greiferöffnungskurve zu schaffen und eine direkte Anzeige der Einstellposition an der Stellspindel zu ermöglichen.It is an object of the invention to provide an inexpensive, space-saving adjusting device with an adjusting spindle for a large adjusting angle range of the pivotably arranged gripper opening curve and to enable a direct display of the adjusting position on the adjusting spindle.

Erfindungsgemäß wird diese Aufgabe durch eine Ausbildung einer eingangs genannten Einstellvorrichtung mit Merkmalen nach dem Kennzeichen des Patentanspruches 1 gelöst.According to the invention, this object is achieved by designing an adjustment device mentioned at the beginning with features according to the characterizing part of patent claim 1.

Erreicht wird durch diese Ausbildungsmerkmale gegenüber bekannten Ausbildungen eine Verdoppelung des durch eine bestimmte Winkelverdrehung der Stellwelle auf die Greiferöffnungskurve übertragenen Verstellwinkels. Diese Verdoppelung des Verdrehwinkels der Stellwelle reicht aus, um durch eine Stellwellendrehung den gesamten Verstellbereich der Greiferöffnungskurve zu durchfahren. Die Verwendung einer Kombination aus Rechtsgewinde und Linksgewinde führt zu einer absoluten Selbsthemmung, so daß auf eine zusätzliche Bremse für die Fixierung der eingestellten Position verzichtet werden kann. Außerdem kann bei einer Verstelleinrichtung der erfindungsgemaßen Ausbildung eine unmittelbare Anzeige des jeweiligen Einstellwinkels der Greiferöffnungskurve an dem Betätigungsmittel für die Verstellwelle erfolgen. In einfacher Weise dadurch, daß an einem auf dem freien Ende der Stellwelle angeordneten Handrad ein Zeiger angeordnet ist, der bei einer Stellwellendrehung über eine am Maschinengestell feste Skala hinwegfährt.These training features achieve a doubling of the adjustment angle transmitted to the gripper opening curve by a certain angular rotation of the adjusting shaft compared to known designs. This doubling of the angle of rotation of the actuating shaft is sufficient to pass through the entire adjustment range of the gripper opening curve by one actuating shaft rotation. The use of a combination of right-hand and left-hand threads leads to absolute self-locking, so that an additional brake for fixing the set position can be dispensed with. In addition, in the case of an adjusting device of the design according to the invention, the respective setting angle of the gripper opening curve can be displayed directly on the actuating means for the adjusting shaft. In a simple manner in that a pointer is arranged on a handwheel arranged on the free end of the actuating shaft, which pointer moves over a fixed scale on the machine frame when the actuating shaft rotates.

Auf der Zeichnung ist ein Ausführungsbeispiel dargestellt. Es zeigen:

Fig. 1
eine Seitenansicht einer Verstelleinrichtung für eine Greiferöffnungskurve,
Fig. 2
eine Draufsicht auf die Anordnung nach Figur 1 mit einem horizontalen Schnitt durch die Lagerung des Kettenrads auf einer Maschinenseite und
Fig. 3
eine Draufsicht auf ein Handrad zur Stellwellendrehung mit Anzeigevorrichtung.
An exemplary embodiment is shown in the drawing. Show it:
Fig. 1
a side view of an adjusting device for a gripper opening curve,
Fig. 2
a plan view of the arrangement of Figure 1 with a horizontal section through the storage of the sprocket on a machine side and
Fig. 3
a plan view of a handwheel for adjusting shaft rotation with a display device.

Bei dem Ausführungsbeispiel ist die Greiferöffnungskurve 1 auf der Welle 2 des Kettenrades 3 für eine endlos umlaufende Transportkette eines Kettenauslegers zur Bogenauslage in einer Bogendruckmaschine angeordnet. Ein weiteres Kettenrad für die Umlenkung einer weiteren Transportkette befindet sich auf der anderen Maschinenseite. An den Transportketten ist jeweils das eine Ende eines Greiferwagens befestigt, bei denen an Greiferbrücken Bogengreifer angeordnet sind, die durch die Greiferöffnungskurve 1 im Bereich der Stapelauslage geöffnet werden. Dazu sind an den Greifern Rollenhebel vorgesehen, deren Rollen gegen die Greiferöffnungskurve 1 anlaufen.In the exemplary embodiment, the gripper opening curve 1 is arranged on the shaft 2 of the chain wheel 3 for an endlessly rotating transport chain of a chain delivery for sheet delivery in a sheet printing machine. Another sprocket for deflecting another transport chain is located on the other side of the machine. One end of a gripper carriage is attached to each of the transport chains, in which sheet grippers are arranged on gripper bridges and are opened by the gripper opening curve 1 in the region of the stack delivery. For this purpose, roller levers are provided on the grippers, whose rollers run against the gripper opening curve 1.

Die Einstellvorrichtung zur Anpassung des Greiferöffnungszeitpunktes an den Druckbetrieb, insbesondere an unterschiedliche Bedruckstoffe, weist eine Verstellwelle 4 auf, deren eines Ende im Zugriffsbereich aus dem Maschinengehäuse 5 herausgeführt ist und ein erfaßbares Handrad 6 tragt. Das andere Ende dieser Stellwelle 4 ist mit dem einen Arm 7 eines Winkelhebels verbunden, der auf einer mit seiner Achse quer zum Bogentransport im Maschinengehäuse 5 gelagerten Welle 8 angeordnet ist. Der andere Arm 9 des Winkelhebels trägt einen Zapfen 10, welcher in ein Langloch 11 der Greiferöffnungskurve 1 eingreift, so daß die Radialkomponente der Winkelbewegungen des Armes 9 kompensiert und nur die tangentiale Komponente auf die Greiferöffnungskurve 1 übertragen wird.The adjusting device for adapting the gripper opening time to the printing operation, in particular to different printing materials, has an adjusting shaft 4, one end of which is led out of the machine housing 5 in the access area and carries a detectable handwheel 6. The other end of this actuating shaft 4 is connected to one arm 7 of an angle lever which is arranged on a shaft 8 which is mounted with its axis transversely to the sheet transport in the machine housing 5. The other arm 9 of the angle lever carries a pin 10 which engages in an elongated hole 11 of the gripper opening curve 1, so that the radial component of the angular movements of the arm 9 compensated and only the tangential component is transferred to the gripper opening curve 1.

Das Koppelgetriebe zwischen der Drehbewegung der Stellwelle 4 und der Welle 8 besteht erfindungsgemäß aus einer Kombination eines Links-/Rechtsgewindes. Die Stellwelle 4 ist mit einem Spindelgewinde 12 in einer Spindelmutter 13 verschraubbar, die fest am Maschinengehäuse 5 angeordnet ist. Andererseits greift ein gegenläufig steigendes Spindelgewinde 14 in eine entsprechend gegenläufige Spindelmutter 15 ein. Diese Spindelmutter 15 ist in dem Arm 7 beweglich gelagert, um diesem Arm eine Schwenkbewegung um die Achse der Welle 8 bei der Einstellung zu ermöglichen. Zur Kompensation eines möglichen Spiels ist zwischen der Welle 8 und der Greiferöffnungskurve 1 eine Feder 16 gespannt.The coupling gear between the rotary movement of the actuating shaft 4 and the shaft 8 according to the invention consists of a combination of a left / right-hand thread. The adjusting shaft 4 can be screwed to a spindle thread 12 in a spindle nut 13, which is fixedly arranged on the machine housing 5. On the other hand, an oppositely increasing spindle thread 14 engages in a correspondingly opposite spindle nut 15. This spindle nut 15 is movably mounted in the arm 7 in order to enable this arm to pivot about the axis of the shaft 8 during adjustment. To compensate for possible play, a spring 16 is tensioned between the shaft 8 and the gripper opening curve 1.

Die Auswahl der Gewindesteigung beider Spindelgewinde mit den darauf verschraubbaren Spindelmuttern erfolgt unter dem Gesichtspunkt, daß dem gesamten Stellwinkelbereich der Greiferöffnungskurve 1 etwa eine Spindelumdrehung entspricht. Vorteilhaft sind Anschlagmittel vorgesehen, um den Drehwinkel der Stellwelle auf weniger als 360° zu begrenzen. Das Beispiel zeigt einen mit der Stellwelle 4 fest verbundenen Anschlagstift 17, der mit einem gehäusefesten Anschlagstift 18 zusammenwirkt. Bei der Einstellung entspricht eine Stellwellenverdrehung von einer Anschlaglage in die entgegengesetzte Anschlaglage dem gesamten Verstellwinkelbereich der Greiferöffnungskurve. Zur Anzeige der Stellung der Greiferöffnungskurve ist am Handrad 6 ein Zeiger 19 vorgesehen, der sich bei der Einstellung über eine gehäusefeste Skala 20 bewegt, so daß die eingestellte Position der Greiferöffnungskurve 1 unmittelbar am Betätigungsmittel der Einstellvorrichtung abgelesen werden kann. Eine Fixierung der eingestellten Position ist nicht erforderlich, weil das Koppelgetriebe selbsthemmende Wirkung hat.The selection of the thread pitch of both spindle threads with the spindle nuts screwable thereon takes place from the point of view that the entire setting angle range of the gripper opening curve 1 corresponds approximately to one spindle revolution. Stop means are advantageously provided in order to limit the angle of rotation of the actuating shaft to less than 360 °. The example shows a stop pin 17 which is fixedly connected to the actuating shaft 4 and which interacts with a stop pin 18 fixed to the housing. When making the adjustment, a setting shaft rotation from one stop position to the opposite stop position corresponds to the entire adjustment angle range of the gripper opening curve. To indicate the position of the gripper opening curve, a pointer 19 is provided on the handwheel 6, which moves during adjustment via a scale 20 fixed to the housing, so that the set position of the gripper opening curve 1 can be read directly on the actuating means of the adjusting device. It is not necessary to fix the set position because the coupling gear has a self-locking effect.

TeilelisteParts list

11
GreiferöffnungskurveGripper opening curve
22nd
Welle 3 KettenradShaft 3 sprocket
44th
StellwelleControl shaft
55
MaschinengehäuseMachine housing
66
HandradHandwheel
77
Armpoor
88th
Wellewave
99
Armpoor
1010th
ZapfenCones
1111
LanglochLong hole
1212th
SpindelgewindeSpindle thread
1313
SpindelmutterSpindle nut
1414
SpindelgewindeSpindle thread
1515
SpindelmutterSpindle nut
1616
Federfeather
1717th
AnschlagstiftStop pin
1818th
AnschlagstiftStop pin
1919th
Zeigerpointer
2020th
Skalascale

Claims (6)

  1. Adjusting device for a gripper opening cam in a chain deliverer for sheet delivery in a sheet-fed printing machine, in which the grippers arranged on gripper carriages of chains guided in endless circulation run up against the gripper opening cam (1) to open the grippers with a cam roller, comprising a control shaft (4) mounted in the machine frame (5), a lever arm (7) which is pivotable about an axis transverse to the axis of the control shaft and is connected in an articulated manner to the gripper opening curve, and a coupling mechanism for converting the rotation of the control shaft into a pivoting movement of the lever arm, characterized in that the coupling mechanism between the control shaft (4) and the lever arm (7) comprises a combination of a left-hand and a right-hand thread, in which the control shaft (4) can be screwed by means of a spindle thread (12) into a spindle nut (13) arranged fixed to the frame and engages by means of a spindle thread (14) of opposite pitch in a spindle nut (15) connected to the lever arm (7).
  2. Adjusting device according to Claim 1, characterized in that the spindle nut (15) connected to the lever arm (7) is connected so as to be movable relative to the arm (7) about an axis parallel to its pivot axis (8).
  3. Adjusting device according to Claims 1 and 2, characterized in that, with a rotation of the control shaft of about 350°, the thread pitch corresponds to the adjusting path of the gripper opening cam (1).
  4. Adjusting device according to Claims 1 to 3, characterized in that analogue indicating means (19, 20) for setting the gripper opening cam (1) are connected to the control shaft (4).
  5. Adjusting device according to Claims 1 to 4, characterized in that stop means (17, 18), which bound the angle of rotation of the control shaft to less than 360°, are provided on the control shaft (4).
  6. Adjusting device according to Claims 1 to 5, characterized in that the lever arm (7) connected to the one spindle nut (15) and a lever arm (9) connected to the gripper opening cam (1) form an angle lever and are attached to a shaft (8) which is mounted in the machine housing (5) with its axis transverse to the conveying direction of the sheet.
EP94115089A 1993-10-15 1994-09-24 Device for adjusting the grippers opening cam of a chain delivery system of a sheet printing machine Expired - Lifetime EP0648700B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4335230A DE4335230C2 (en) 1993-10-15 1993-10-15 Adjustment device for a gripper opening curve in a chain arm of a sheet-fed printing machine
DE4335230 1993-10-15

Publications (2)

Publication Number Publication Date
EP0648700A1 EP0648700A1 (en) 1995-04-19
EP0648700B1 true EP0648700B1 (en) 1997-03-12

Family

ID=6500262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94115089A Expired - Lifetime EP0648700B1 (en) 1993-10-15 1994-09-24 Device for adjusting the grippers opening cam of a chain delivery system of a sheet printing machine

Country Status (4)

Country Link
US (1) US5566614A (en)
EP (1) EP0648700B1 (en)
JP (1) JP3681420B2 (en)
DE (2) DE4335230C2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19642804C2 (en) * 1996-10-17 2002-11-07 Heidelberger Druckmasch Ag Adjustment device for a gripper opening curve in a chain arm of a sheet-fed printing machine
KR100297784B1 (en) * 1998-03-20 2001-09-06 윤종용 Device for controlling slant of laser scanner in printer
US6129350A (en) * 1999-03-10 2000-10-10 Heidelberger Druckmaschinen Ag Timing belt with product handling mechanism
CN101537937B (en) * 2009-04-17 2013-04-10 天津长荣印刷设备股份有限公司 Gripper with location adjusting device and working method thereof
CN106183394A (en) * 2016-07-07 2016-12-07 天津长荣印刷设备股份有限公司 The accurate-location device of a kind of set type die-cutting machine and method of work thereof
CN105966058A (en) 2016-07-07 2016-09-28 天津长荣印刷设备股份有限公司 Positioning micro-adjusting device applicable to unit type die cutting and hot foil stamping machine and working method thereof

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198385A (en) * 1938-06-07 1940-04-23 Harris Seybold Potter Co Sheet conveyer mechanism
DE1119300B (en) * 1960-07-22 1961-12-14 Maschf Augsburg Nuernberg Ag Control of the grippers on chain booms of printing machines that interact with follow-up grippers
DE1219045B (en) * 1965-11-05 1966-06-16 Maschf Augsburg Nuernberg Ag Control for the grippers of chain booms on printing machines
CH438909A (en) * 1966-06-21 1967-06-30 Bobst Fils Sa J Machine working sheets
US3814014A (en) * 1968-06-17 1974-06-04 H Dahlgren Inker
DE2040670B1 (en) * 1970-08-17 1971-08-05 Maschf Augsburg Nuernberg Ag Gripper control on chain arms of sheet-fed printing machines
DD141664A1 (en) * 1979-03-15 1980-05-14 Hans Zimmermann GRIPPER CONTROL CURVE IN BOWERS OF ARC-MACHINING MACHINES
AT393997B (en) * 1983-06-22 1992-01-10 Heidelberger Druckmasch Ag DEVICE FOR REMOVING PRINTED SHEETS FOR THEIR REVIEW
US5189958A (en) * 1991-04-05 1993-03-02 A. B. Dick Company Plate clamping system for a duplicating machine
DE4223232A1 (en) * 1992-07-15 1994-01-20 Heidelberger Druckmasch Ag Device for controlling opening time of gripper fingers in sheet delivery mechanism - has starting body displaceable along path matching curved or straight path of movement of grippers

Also Published As

Publication number Publication date
JPH07171949A (en) 1995-07-11
DE4335230A1 (en) 1995-04-20
US5566614A (en) 1996-10-22
DE4335230C2 (en) 1996-03-14
DE59402037D1 (en) 1997-04-17
JP3681420B2 (en) 2005-08-10
EP0648700A1 (en) 1995-04-19

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