EP0709186A1 - In-feed gripper for rotary sheet printing machines - Google Patents
In-feed gripper for rotary sheet printing machines Download PDFInfo
- Publication number
- EP0709186A1 EP0709186A1 EP95116071A EP95116071A EP0709186A1 EP 0709186 A1 EP0709186 A1 EP 0709186A1 EP 95116071 A EP95116071 A EP 95116071A EP 95116071 A EP95116071 A EP 95116071A EP 0709186 A1 EP0709186 A1 EP 0709186A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gripper
- hollow cylinder
- apex
- axis
- gripper according
- 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
Links
- 239000000463 material Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 2
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
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
- B41F21/04—Grippers
- B41F21/05—In-feed grippers
Definitions
- the invention relates to a pre-gripper for sheet-fed rotary printing presses, which is used for the precisely fitting sheet transfer of an aligned sheet to a system drum or a printing cylinder.
- the pre-gripper is suitable for the transport of substrates in the form of paper, cardboard or sheet metal.
- a pre-gripper of this type is known from DE-AS 2 156 577. It essentially consists of a cylindrical tube, on which holders are releasably connected, which support the gripper bridges.
- a disadvantage of these designs is that at higher press speeds and higher requirements for register stability, bending and torsional moments have a negative effect on the print quality.
- Another disadvantage is the complex assembly. For example, when disassembling the pre-gripper, the drive lever must be removed from the pre-gripper tube to remove the tube.
- the object of the invention is to develop a solution which has a high bending and torsional rigidity to achieve a high register stability and preferably a low assembly or disassembly effort.
- the task is solved by the characterizing part of the main claim. Further training results from the subclaims.
- the solution according to the invention represents a flexurally and torsionally rigid pre-gripper which is also easy to assemble.
- the flexurally and torsionally rigid design ensures a high register stability and thereby improves the print quality. Compared to previous ones Versions reduce the number of parts and the design is easy to install.
- the axis of inertia is preferably on the axis of rotation of the pre-gripper.
- the cross-section of the pre-gripper is egg-shaped (oval) as a hollow cylinder, the web carrying the gripper bar preferably constituting a component with the hollow cylinder.
- a hollow cylinder can have several communicating breakthroughs in order to build up or reduce a possible dynamic pressure (at higher machine speeds) or a negative pressure. These openings can also be arranged in the web or the gripper bar.
- the oval hollow cylinder is preferably made of aluminum or aluminum is contained in the hollow cylinder as a material. A further reduction in mass is achieved by forming the hollow cylinder from a carbon fiber material (CFRP).
- a system 1 is arranged in a sheet-fed rotary printing press.
- a vibrating pre-gripper is arranged below the system 1.
- the pre-gripper consists of an oval hollow cylinder 7, which in cross section has an apex 8 with maximum curvature and an apex 15 with less curvature with respect to apex 8.
- the wall thickness of the egg-shaped hollow cylinder 7 increases in cross-section from the apex 8 to the apex 15.
- a web 3 is arranged which carries a gripper bar 2.
- a gripper shaft 4, which has a plurality of grippers 5, is adjacent to the web 3 wearing.
- Gripper impact bar 2, gripper shaft 4 and the grippers 5 form a gripper bridge in a known manner.
- An axis of rotation 9 is arranged adjacent to the apex 15, on which the axis of inertia of the pre-gripper lies at the same time.
- the pre-gripper is centered on the end face by its oval hollow cylinder 7 in the axis of rotation 9, each with a bearing journal 10 mounted in the machine frame 11 of the printing press, and detachably connected by means of screws.
- the hollow cylinder 7 has in the axial direction on each end face (base and top surface of the hollow cylinder) a flat surface 14, which is assigned a flat surface 14 'of the respective journal 10.
- the hollow cylinder In the radial direction, the hollow cylinder has a centering 13 on each end face, to which a circumferential centering 13 ′ of the respective journal 10 is assigned.
- the bearing pins 10 are received in a bearing 12 of the respective machine frame 11 and protrude into the space between the two machine frames 11 in the direction of one end face of the hollow cylinder 7.
- Hollow cylinder 7 and the bearing pins 10 are connected by several connecting elements, e.g. Screws, releasably positively connected, which is indicated in Fig. 2 by the chain lines.
- the web 3 or the gripper bar 2 can also have openings 16.
- the openings 16 serve to avoid a dynamic pressure or negative pressure which can build up or break down between the pre-gripper and the printing material.
- the pressure conditions can be compensated for by the air flow 17 flowing through the openings 16, which improves the sheet guidance.
- the vibrating pre-gripper takes over from the front marks in a manner known per se the sheet fed via the system 1 in the conveying direction 6 and transfers it, accelerated to printing machine speed, to a feed drum for further transport to a printing cylinder.
Landscapes
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Discharge By Other Means (AREA)
Abstract
Description
Die Erfindung betrifft einen Vorgreifer für Bogenrotationsdruckmaschinen, der der passgenauen Bogenübergabe eines ausgerichteten Bogens an eine Anlagetrommel oder einen Druckzylinder dient. Der Vorgreifer eignet sich dabei für den Transport von Bedruckstoffen in Form von Papier, Karton oder Blech.The invention relates to a pre-gripper for sheet-fed rotary printing presses, which is used for the precisely fitting sheet transfer of an aligned sheet to a system drum or a printing cylinder. The pre-gripper is suitable for the transport of substrates in the form of paper, cardboard or sheet metal.
Ein Vorgreifer dieser Art ist aus der DE-AS 2 156 577 bekannt. Er besteht im wesentlichen aus einem zylindrischen Rohr, an dem Halterungen lösbar verbunden sind, die die Greiferbrücken tragen.A pre-gripper of this type is known from DE-AS 2 156 577. It essentially consists of a cylindrical tube, on which holders are releasably connected, which support the gripper bridges.
Nachteilig bei diesen Ausführungen ist es, daß bei höheren Maschinengeschwindigkeiten und höheren Anforderungen an die Passerhaltigkeit Biege- und Torsionsmomente sich negativ auf die Druckqualität auswirken. Ein weiterer Nachteil ist die aufwendige Montage. So muß unter anderem bei einer Vorgreiferdemontage der Antriebshebel vom Vorgreiferrohr demontiert werden um das Rohr auszubauen.A disadvantage of these designs is that at higher press speeds and higher requirements for register stability, bending and torsional moments have a negative effect on the print quality. Another disadvantage is the complex assembly. For example, when disassembling the pre-gripper, the drive lever must be removed from the pre-gripper tube to remove the tube.
Aufgabe der Erfindung ist es eine Lösung zu entwickeln, die eine hohe Biege- und Torsionssteifigkeit zur Erzielung einer hohen Passerhaltigkeit und bevorzugt einen geringen Montage- bzw. Demontageaufwand besitzt.The object of the invention is to develop a solution which has a high bending and torsional rigidity to achieve a high register stability and preferably a low assembly or disassembly effort.
Gelöst wird die Aufgabe durch den kennzeichnenden Teil des Hauptanspruches. Weiterbildungen ergeben sich aus den Unteransprüchen. Die erfindungsgemäße Lösung stellt einen biege- und torsionssteifen Vorgreifer dar, der gleichzeitig montagefreundlich ist. Die biege- und torsionssteife Ausbildung gewährleistet eine hohe Passerhaltigkeit und verbessert dadurch die Druckqualität. Gegenüber bisherigen Ausführungen wird die Teilevielfalt reduziert und die Ausführung ist montagefreundlich. Die Trägheitsachse liegt vorzugsweise auf der Drehachse des Vorgreifers. Der Vorgreifer ist in seinem Querschnitt als Hohlzylinder eiförmig (oval) ausgebildet, wobei der die Greiferaufschlagleiste tragende Steg vorzugsweise mit dem Hohlzylinder ein Bauteil darstellt. Um den Bogen ruhig auf der Anlage zu führen, kann zum Auf- oder Abbau eines möglichen Staudruckes (bei höheren Maschinengeschwindigkeiten) oder eines Unterdruckes der Hohlzylinder in axialer Richtung mehrere kommunizierende Durchbrüche aufweisen. Diese Durchbrüche können auch im Steg oder der Greiferaufschlagleiste angeordnet sein. Zur Massereduzierung besteht der ovale Hohlzylinder bevorzugt aus Aluminium oder es ist Aluminium als Werksstoff im Hohlzylinder enthalten. Eine weitere Massereduzierung erreicht man bei der Ausbildung des Hohlzylinders aus einem Kohlefaserwerkstoff (CFK).The task is solved by the characterizing part of the main claim. Further training results from the subclaims. The solution according to the invention represents a flexurally and torsionally rigid pre-gripper which is also easy to assemble. The flexurally and torsionally rigid design ensures a high register stability and thereby improves the print quality. Compared to previous ones Versions reduce the number of parts and the design is easy to install. The axis of inertia is preferably on the axis of rotation of the pre-gripper. The cross-section of the pre-gripper is egg-shaped (oval) as a hollow cylinder, the web carrying the gripper bar preferably constituting a component with the hollow cylinder. In order to guide the sheet smoothly on the system, a hollow cylinder can have several communicating breakthroughs in order to build up or reduce a possible dynamic pressure (at higher machine speeds) or a negative pressure. These openings can also be arranged in the web or the gripper bar. To reduce the mass, the oval hollow cylinder is preferably made of aluminum or aluminum is contained in the hollow cylinder as a material. A further reduction in mass is achieved by forming the hollow cylinder from a carbon fiber material (CFRP).
Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden. Dabei zeigen:
- Fig. 1
- den Vorgreifer im Querschnitt (Schnitt A - A),
- Fig. 2
- den Vorgreifer in axialer Verbindung mit einem Lagerzapfen,
- Fig. 3
- den Vorgreifer in Weiterbildung der Fig. 1.
- Fig. 1
- the pre-gripper in cross section (section A - A),
- Fig. 2
- the pre-gripper in axial connection with a bearing journal,
- Fig. 3
- the pre-gripper in a further development of FIG. 1.
In einer Bogenrotationsdruckmaschine ist eine Anlage 1 angeordnet. Unterhalb der Anlage 1 ist ein schwingender Vorgreifer angeordnet. Der Vorgreifer besteht aus einem ovalen Hohlzylinder 7, der im Querschnitt einen Scheitelpunkt 8 mit maximaler Krümmung und einen Scheitelpunkt 15 mit in Bezug auf den Scheitelpunkt 8 geringerer Krümmung aufweist. Die Wanddicke des eiförmigen Hohlzylinders 7 nimmt im Querschnitt gesehen vom Scheitelpunkt 8 zum Scheitelpunkt 15 hin zu. In der Nähe des Scheitelpunktes 8 ist ein Steg 3 angeordnet, welcher eine Greiferaufschlagleiste 2 trägt. Dem Steg 3 ist eine Greiferwelle 4 benachbart, welche eine Mehrzahl von Greifern 5 trägt. Greiferaufschlagleiste 2, Greiferwelle 4 sowie die Greifer 5 bilden in bekannter Weise eine Greiferbrücke.A system 1 is arranged in a sheet-fed rotary printing press. A vibrating pre-gripper is arranged below the system 1. The pre-gripper consists of an oval
Dem Scheitelpunkt 15 benachbart ist eine Drehachse 9 angeordnet, auf der gleichzeitig die Trägheitsachse des Vorgreifers liegt. Der Vorgreifer ist durch seinen ovalen Hohlzylinder 7 in der Drehachse 9 mit je einem im Maschinengestell 11 der Druckmaschine gelagerten Lagerzapfen 10 stirnseitig zentriert und mittels Schrauben lösbar verbunden. Der Hohlzylinder 7 weist in axialer Richtung an jeder Stirnseite (Grund- und Deckfläche des Hohlzylinders) eine Planfläche 14 auf, der eine Planfläche 14' des jeweiligen Lagerzapfens 10 zugeordnet ist. In radialer Richtung weist der Hohlzylinder an jeder Stirnseite eine Zentrierung 13 auf, der eine umfangsseitige Zentrierung 13' des jeweiligen Lagerzapfens 10 zugeordnet ist. Die Lagerzapfen 10 sind in je einer Lagerung 12 des jeweiligen Maschinengestells 11 aufgenommen und ragen in den Zwischenraum der beiden Maschinengestelle 11 in Richtung jeweils einer Stirnseite des Hohlzylinders 7. Hohlzylinder 7 und die Lagerzapfen 10 sind durch mehrere Verbindungselemente, z.B. Schrauben, lösbar formschlüssig verbunden, was in Fig. 2 durch die Strichpunktlinien angedeutet ist.An axis of
In Fig. 3 ist ein Vorgreifer dargestellt, der in seinem Hohlzylinder 7 Durchbrüche 16 aufweist. Je nach Ausführung kann der Steg 3 oder die Greiferaufschlagleiste 2 ebenfalls Durchbrüche 16 aufweisen. Die Durchbrüche 16 dienen der Vermeidung eines Staudruckes oder Unterdruckes, der sich zwischen Vorgreifer und Bedruckstoff auf- oder abbauen kann. Die Druckverhältnisse können durch die die Durchbrüche 16 durchströmende Luftströmung 17 ausgeglichen werden, was die Bogenführung verbessert. Der schwingende Vorgreifer übernimmt von den Vordermarken in an sich bekannter Weise den über die Anlage 1 in Förderrichtung 6 zugeführten Bogen und übergibt diesen, auf Druckmaschinengeschwindigkeit beschleunigt, an eine Anlegetrommel zum weiteren Transport an einen Druckzylinder.3 shows a pre-gripper which has 7
- 11
- Anlageinvestment
- 22nd
- GreiferaufschlagleisteGripper impact bar
- 33rd
- Stegweb
- 44th
- GreiferwelleGripper shaft
- 55
- GreiferGripper
- 66
- FörderrichtungDirection of conveyance
- 77
- HohlzylinderHollow cylinder
- 88th
- ScheitelpunktVertex
- 99
- DrehachseAxis of rotation
- 1010th
- LagerzapfenBearing journal
- 1111
- MaschinengestellMachine frame
- 1212th
- Lagerungstorage
- 1313
- Zentrierungcentering
- 13'13 '
- Zentrierungcentering
- 1414
- PlanflächeFlat area
- 14'14 '
- PlanflächeFlat area
- 1515
- ScheitelpunktVertex
- 1616
- Durchbruchbreakthrough
- 1717th
- LuftströmungAir flow
Claims (10)
dadurch gekennzeichnet,
daß der Vorgreifer aus einem im Querschnitt ovalen Hohlzylinder (7) mit einem eine maximale Krümmung aufweisenden Scheitelpunkt (8) und einem eine geringere Krümmung aufweisenden Scheitelpunkt (15) gebildet ist, wobei am Scheitelpunkt (8) die Greiferbrücke (2, 4, 5) und am Scheitelpunkt (15) eine Drehachse (9) benachbart angeordnet ist.Pre-gripper for sheet-fed rotary printing presses with a gripper bridge formed from a gripper bar, gripper shaft and a plurality of grippers,
characterized by
that the pre-gripper is formed from a hollow cylinder (7) with an oval cross-section with a vertex (8) having a maximum curvature and a vertex (15) having a smaller curvature, the gripper bridge (2, 4, 5) at the vertex (8) and at the vertex (15) an axis of rotation (9) is arranged adjacent.
dadurch gekennzeichnet,
daß der Hohlzylinder (7) einen dem Scheitelpunkt (8) benachbarten Steg (3) besitzt, dem die Greiferbrücke (2, 4, 5) zugeordnet ist.Pre-gripper according to claim 1,
characterized by
that the hollow cylinder (7) has a web (3) adjacent to the apex (8), to which the gripper bridge (2, 4, 5) is assigned.
dadurch gekennzeichnet,
daß im Querschnitt die Wanddicke des Hohlzylinders (7) vom Scheitelpunkt (8) zum Scheitelpunkt (15) zunimmt.Pre-gripper according to claim 1,
characterized by
that the wall thickness of the hollow cylinder (7) increases in cross section from the apex (8) to the apex (15).
dadurch gekennzeichnet,
daß der Hohlzylinder (7) in axialer Richtung angeordnete, kommunizierende Durchbrüche (16) aufweist.Pre-gripper according to claim 1,
characterized by
that the hollow cylinder (7) has communicating openings (16) arranged in the axial direction.
dadurch gekennzeichnet,
daß der ovale Hohlzylinder (7) in der Drehachse (9) mit je einem im Maschinengestell (11) aufgenommenen Lagerzapfen (10) stirnseitig zentriert und lösbar verbunden ist.Pre-gripper according to claim 1,
characterized by
that the oval hollow cylinder (7) in the axis of rotation (9) is centered on the end face and releasably connected to a bearing journal (10) accommodated in the machine frame (11).
dadurch gekennzeichnet,
daß der Hohlzylinder (7) und jeder Lagerzapfen (10) axial durch Planflächen (14, 14') und radial durch Zentrierungen (13, 13') lösbar formschlüssig verbunden sind.Pre-gripper according to claims 1 and 5,
characterized by
that the hollow cylinder (7) and each bearing journal (10) are detachably positively connected axially by plane surfaces (14, 14 ') and radially by centering means (13, 13').
dadurch gekennzeichnet,
daß der Lagerzapfen (10) ein Innenring einer im Maschinengestell (11) aufgenommenen Lagerung (12) ist.Pre-gripper according to claim 1,
characterized by
that the bearing journal (10) is an inner ring of a bearing (12) accommodated in the machine frame (11).
dadurch gekennzeichnet,
daß der Hohlzylinder (7) aus Aluminium oder Aluminium als Werkstoff enthält oder aus einem Kohlefaserwerkstoff gebildet ist.Pre-gripper according to claim 1,
characterized by
that the hollow cylinder (7) made of aluminum or aluminum as a material or is formed from a carbon fiber material.
dadurch gekennzeichnet,
daß die Trägheitsachse des Vorgreifers auf der Drehachse (9) liegt.Pre-gripper according to claim 1,
characterized by
that the axis of inertia of the pre-gripper lies on the axis of rotation (9).
dadurch gekennzeichnet,
daß der Steg (3) und/oder die Greiferaufschlagleiste (2) Durchbrüche (16) aufweisen.Pre-gripper according to claims 1 or 4,
characterized by
that the web (3) and / or the gripper bar (2) have openings (16).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4438757A DE4438757C2 (en) | 1994-10-29 | 1994-10-29 | Pre-gripper for sheet-fed rotary printing machines |
| DE4438757 | 1994-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0709186A1 true EP0709186A1 (en) | 1996-05-01 |
| EP0709186B1 EP0709186B1 (en) | 1998-04-22 |
Family
ID=6532058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95116071A Expired - Lifetime EP0709186B1 (en) | 1994-10-29 | 1995-10-12 | In-feed gripper for rotary sheet printing machines |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5575209A (en) |
| EP (1) | EP0709186B1 (en) |
| JP (1) | JP2918094B2 (en) |
| AT (1) | ATE165276T1 (en) |
| DE (2) | DE4438757C2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19753137C1 (en) * | 1997-11-29 | 1998-10-15 | Roland Man Druckmasch | Sheet-guide and handler for printing machine |
| DE20008829U1 (en) | 2000-05-16 | 2000-08-03 | MAN Roland Druckmaschinen AG, 63075 Offenbach | System in a sheet printing machine |
| DE10023669C1 (en) * | 2000-05-16 | 2001-06-28 | Roland Man Druckmasch | Control device for gripper in sheet processing machine has deflection of roller lever supporting cam roller trasmitted by coupling drive to gripper shaft for sheet gripper |
| DE10332672A1 (en) * | 2003-07-18 | 2005-02-10 | Koenig & Bauer Ag | Preliminary grip for sheet processing machine has preliminary grip bearing axis fixed to preliminary grip shaft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2220046A (en) * | 1938-12-10 | 1940-10-29 | Lang Karl Theodor | Sheet feeding device |
| DE739377C (en) * | 1938-05-20 | 1943-09-25 | Planeta Druckmaschinenwerk Ag | Process for the correct alignment and application of sheets to rotating cylinders, in particular of printing machines |
| GB676218A (en) * | 1949-03-04 | 1952-07-23 | Miehle Printing Press & Mfg | Method of transferring lapped sheets |
| US3647205A (en) * | 1970-05-15 | 1972-03-07 | Polygraph Leipzig | Method and apparatus for feeding of sheets fittingly aligned to a machine |
| DE2156577A1 (en) | 1971-11-15 | 1973-05-30 | Roland Offsetmaschf | CARTON GUIDE FOR ROTARY SHEET PRINTING MACHINES |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE614043C (en) * | 1933-01-29 | 1935-05-31 | Vomag Betr S A G | Sheet feeder for printing machines |
| DE3529596A1 (en) * | 1985-08-19 | 1987-02-26 | Roland Man Druckmasch | SPRING GRIPPER FOR ARC ROTATION PRINTING MACHINES |
| DE4127713C2 (en) * | 1991-08-22 | 1996-03-21 | Koenig & Bauer Albert Ag | Grippers for sheet-fed rotary printing machines |
-
1994
- 1994-10-29 DE DE4438757A patent/DE4438757C2/en not_active Expired - Fee Related
-
1995
- 1995-10-12 AT AT95116071T patent/ATE165276T1/en not_active IP Right Cessation
- 1995-10-12 DE DE59501980T patent/DE59501980D1/en not_active Expired - Lifetime
- 1995-10-12 EP EP95116071A patent/EP0709186B1/en not_active Expired - Lifetime
- 1995-10-25 US US08/548,102 patent/US5575209A/en not_active Expired - Fee Related
- 1995-10-26 JP JP7278884A patent/JP2918094B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE739377C (en) * | 1938-05-20 | 1943-09-25 | Planeta Druckmaschinenwerk Ag | Process for the correct alignment and application of sheets to rotating cylinders, in particular of printing machines |
| US2220046A (en) * | 1938-12-10 | 1940-10-29 | Lang Karl Theodor | Sheet feeding device |
| GB676218A (en) * | 1949-03-04 | 1952-07-23 | Miehle Printing Press & Mfg | Method of transferring lapped sheets |
| US3647205A (en) * | 1970-05-15 | 1972-03-07 | Polygraph Leipzig | Method and apparatus for feeding of sheets fittingly aligned to a machine |
| DE2156577A1 (en) | 1971-11-15 | 1973-05-30 | Roland Offsetmaschf | CARTON GUIDE FOR ROTARY SHEET PRINTING MACHINES |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59501980D1 (en) | 1998-05-28 |
| US5575209A (en) | 1996-11-19 |
| DE4438757C2 (en) | 1997-09-11 |
| ATE165276T1 (en) | 1998-05-15 |
| JPH08207246A (en) | 1996-08-13 |
| JP2918094B2 (en) | 1999-07-12 |
| DE4438757A1 (en) | 1996-05-02 |
| EP0709186B1 (en) | 1998-04-22 |
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|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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|
| 17P | Request for examination filed |
Effective date: 19951027 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19961025 |
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| GRAG | Despatch of communication of intention to grant |
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