EP0142874A1 - Cylindre d'impression avec dispositif de fixation des clichés en creux, pour rotatives - Google Patents
Cylindre d'impression avec dispositif de fixation des clichés en creux, pour rotatives Download PDFInfo
- Publication number
- EP0142874A1 EP0142874A1 EP84201435A EP84201435A EP0142874A1 EP 0142874 A1 EP0142874 A1 EP 0142874A1 EP 84201435 A EP84201435 A EP 84201435A EP 84201435 A EP84201435 A EP 84201435A EP 0142874 A1 EP0142874 A1 EP 0142874A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- groove
- clamping
- forme cylinder
- plate
- cylinder
- 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
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
- B41F27/1243—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 pivotal or swivelling motion, e.g. by means of a rocking lever
Definitions
- the invention relates to a form cylinder for web printing presses set up for clamping engraving printing plates, with at least one groove open towards the cylinder circumference and a fastening device arranged therein for the two plate ends projecting into the groove.
- the fastening device In a known forme cylinder for engraving printing machines (DE-OS 2 105 633), the fastening device consists of two rectilinearly displaceable tensioning bars on which the two ends of a flexible engraving pressure plate are clamped by means of clamping screws, and tensioning screws with which the tensioning bars are displaced for tensioning the pressure plate can be.
- This arrangement requires relatively wide grooves in the form cylinder for accommodating the tensioning strips and the tensioning screws and is therefore not well suited for web-fed printing presses in which the interruptions formed by the grooves of the cylinder jacket covered with pressure plates should be as small as possible.
- Another known fastening device for flexible pressure plates also has two displaceable tensioning strips for clamping the two pressure plate ends while the tensioning device device consists of pistons guided in recesses of the clamping strips, which are supported on a groove boundary wall and can be actuated hydraulically.
- the actuating device for these pistons consists of a pressure medium cylinder equipped with an actuating piston, which is installed in the middle of the groove base between the two clamping bars.
- This fastening device also requires a very wide groove in the forme cylinder.
- the above-mentioned known fastening devices have in common that the devices clamping the two plate ends and the actual plate clamping device are independent of one another and must be actuated independently when fastening and clamping the pressure plates by first screwing the plate ends onto the clamping strips and then these clamping strips, or at least one of the clamping bars, must be moved using the clamping device.
- a more simply constructed device for fastening printing plates to a forme cylinder is also known (US Pat. No. 2,209,127).
- This device consists only of a holding part screwed in the middle of the groove on the groove bottom with a radially oriented T-shaped profile.
- the plate ends protruding at approximately a right angle and protruding into the groove are bent in a V-shape, and for fastening the free V-legs to be pointed towards one another are simply pushed under the head of the T-shaped profile on both sides, so that the edges of the plate ends on the underside of this Head.
- the invention has for its object to provide a form cylinder intended for roll printing with plate fastening device, which requires only a small amount of space in the circumferential direction of the form cylinder and therefore requires only a groove of minimal width in the radius of the cylinder body, so that the cylinder body has the necessary strength against the strong , maintains the compressive forces required in the steel engraving process.
- the fastening device should be of simple construction and designed in such a way that the operations of clamping and tensioning the pressure plate are made considerably easier than previously known fastening devices and, in conjunction with the selected groove geometry, the correct clamping of stiff nickel plates, as are preferably used for engraving , is made possible in the first place.
- the fastening device has a clamping bar that is common to both plate ends and that extends radially Direction of the forme cylinder has a longer dimension than in the circumferential direction and can be tilted about an axis parallel to the cylinder axis, has a clamping device arranged in one groove boundary wall, acting on one side of the clamping bar, and a clamping piece arranged between the clamping bar and the other groove limiting wall, wherein On both sides of this clamping piece, approximately radially oriented slots are formed for inserting the two approximately radially bent plate ends, which, when the clamping device is actuated, are simultaneously clamped between the clamping piece and the clamping strip on the one hand and the groove delimitation wall adjacent to the clamping piece while simultaneously tensioning the pressure plate will.
- both the preferably wedge-shaped clamping bar and the clamping piece can be made quite narrow and therefore the groove only has to have a relatively small width, so that the stability of the forme cylinder body in the region of the groove is only insignificantly impaired and that the clamping of the two plate ends and the clamping of the pressure plate take place simultaneously by tilting the clamping bar in a single operation.
- the forme cylinder according to the invention thus optimally fulfills the requirement important for web printing, according to which the circumferential gaps should be as narrow as possible, and allows the clamping of engraving pressure plates, in particular the very rigid nickel plates, using strong clamping forces.
- the arrangement is preferably such that the wedge-shaped clamping bar with its tapered end extends almost to the circumference of the forme cylinder, while the clamping piece is shorter and extends in the radial direction only up to a part of the height of the groove boundary wall, and that the groove tapers radially outwards and is narrow at the cylinder circumference Forms gap, the width of which is dimensioned only so large that the tapered end of the clamping bar and the two plate ends protruding into this gap find space with sufficient play to clamp the plate.
- the tensioning strip and the clamping piece are loosely inserted into the groove and are supported on the groove bottom, thereby saving any fastening means for these parts.
- the clamping device consists of a plurality of hydraulically actuated pistons, the cylinder openings of which are provided in the relevant groove boundary wall.
- the cylinder openings with the pistons and all the hydraulic feed lines are advantageously accommodated in an insert which is fastened in an adapted recess of the forme cylinder including the groove and whose circumferential surface complements the circumferential surface of the forme cylinder exactly.
- a tensioning support is expediently provided between the tensioning bar and the groove limiting wall having the pistons, which after clamping and clamping the pressure plate with the aid of screws accessible at the end faces of the forme cylinder with clamping the clamping bar can be pressed radially outwards.
- each of the grooves 6 the cross section of which tapers radially outward, there are the parts belonging to the plate fastening device, namely a tensioning strip 7, a tensioning support 8 and a clamping piece 9 (FIG. 4). All of these parts extend over the entire axial length of the groove 6, and their ends are accessible in the groove 6 extending recesses of the flanges 4 and 5 of the forme cylinder 1 for assembly.
- the tensioning bar 7 is a narrow part with a wedge-shaped cross section, the length of which approximately corresponds to the depth of the groove 6 and which is inserted loosely into the groove 6 without any fastening means.
- the thick, rounded end of the clamping bar 7 lies on the groove bottom, and its tapered end extends almost to the envelope of the outer surface of the forme cylinder 1 and is therefore in the narrow circumferential gap that the outwardly tapering groove 6 forms at its mouth on the cylinder circumference (FIGS. 3 and 4).
- the tensioning bar 7 can be tilted a little about an axis parallel to the cylinder axis with a small play given by the width dimension of the groove 6, its rounded end rolling on the groove bottom and its outer tapered end
- the circumferential direction of the forme cylinder 1 moves within the small circumferential gap.
- the clamping piece 9 lies between the left side of the tensioning strip 7 in the illustration according to FIGS. 3 and 4 and the opposite groove boundary wall and is a narrow part which also lies loosely against the groove bottom and is only about half as long as the tensioning strip 7 and is therefore itself extends only up to half the height of the groove boundary wall.
- the tensioning support 8 is arranged, the design of which is shown in FIGS. 7 and 8 and which, as will be described later, after tensioning the assembled pressure plates for the purpose of mechanically clamping the tensioning bar 7 while lifting off Groove bottom can be pressed radially outwards.
- the other groove-boundary wall is formed by an insert 10 which is fastened in a correspondingly adapted recess 11 of the forme cylinder 1 which includes the groove 6.
- a tensioning device for the tensioning bar 7 is accommodated so that it is for the purpose Tensioning the pressure plate P 'held by it can be tilted accordingly, namely in the illustration according to Figure 4 counterclockwise.
- the correspondingly machined circumferential surface of the insert 10 exactly complements the circumferential surface of the forme cylinder 1. Screws 12 (FIG.
- each insert 10 in corresponding cylinder openings 16, which are evenly distributed over the axial length of the forme cylinder 1.
- the pistons 15 provided with 0-rings 15a come out of the groove boundary wall of the insert 10 when they are pressurized and push against the tensioning bar 7, which is pressed to the left in the illustration according to FIG. 4 with strong force in this way, so that it is pivoted accordingly.
- the tensioning support 8 is provided with recesses 8a in the area of the pistons (FIG 7). which freely push through the pistons.
- All cylinder openings 16 of each insert 10 are connected via individual feed lines 17 to a common feed line 18 running in the axial direction of the forme cylinder 1, which leads to a closable inlet 19 located on one end face of the forme cylinder 1 (FIG. 6), which leads to an outer one hydraulic pressure source can be connected.
- the feed lines 17 and 18 and the inlet 19 are all accommodated in or on the insert 10, the ends of which protrude on the end faces of the forme cylinder 1 and are accessible on the flanges 4 and 5.
- the inner ends of the individual feed lines 17 on the side of the common line 18 facing away from the cylinder openings 16 are closed by grub screws 20.
- the entire hydraulic system forming the tensioning device, including its feed lines, is therefore accommodated in the insert 10 and is therefore easy to manufacture and assemble.
- the described fastening device of the forme plate 1 prepared for the mounting of printing plates assumes the position shown in FIG. 3, in which the pistons 15 (FIG. 4) are retracted into the interior of the groove boundary wall, the tensioning support 8 rests on the groove bottom and before the printing plates are placed on it
- Tensioning bar 7 rests with its tapered end on the outer end of the groove boundary wall of the insert 10.
- the corresponding bent plate ends are inserted into the groove 6 when the pressure plates are placed on the circumference of the forme cylinder 1 in such a way that the plate end PA of the pressure plate P into the slot between the clamping piece 9 and the adjacent groove boundary wall and the end P'B the pressure plate P 'between the clamping piece 9 and the clamping bar 7 arrives ( Figure 4).
- the side of the clamping piece 9 facing the adjacent groove delimitation wall is designed so that the radially outer section, which extends over most of the length of this clamping piece 9, is offset by approximately the thickness of the pressure plate, forming a clamping surface 9b , while the inner portion 9a abuts the groove boundary wall.
- the clamping surface 9b is angled somewhat at about half the height, forming an edge.
- the groove boundary wall opposite the clamping surface 9b has a correspondingly angled shape, so that an essentially parallel slot is formed between the clamping surface 9b and the groove boundary wall, into which the plate end PA is inserted up to the aforementioned edge, i.e. by the depth of the outer, non-angled clamping surface section .
- the forme cylinder 1 rolls in the direction of the arrow in FIG. 4 on the counter-pressure cylinder, not shown, under strong pressure.
- the Be boundary edge A of the forme cylinder 1 at the rear boundary of the circumferential gap seen in the direction of rotation represents the location of the start of printing, while after a cylinder rotation the other boundary edge E of the insert 10 represents the location of the respective printing end.
- Both boundary edges A and E are very slightly rounded, preferably with a small radius between 1.4 and 1.8 mm, in particular 1.6 mm, the rounding of the front boundary edge E being supplemented by the correspondingly rounded tapered end of the tensioning strip 7, which was processed together with this under the boundary edge.
- the angle at the boundary edge A that is to say between the groove boundary wall on the clamping piece side and the adjacent circumferential section of the forme cylinder 1, is somewhat less than 90 * and is preferably approximately 75 * .
- the angle at the other boundary edge E between the contact surface of the clamping bar 7 and the adjacent peripheral section of the forme cylinder 1 is greater than 90 * and is preferably approximately 105.
- the configuration described above is particularly favorable, on the one hand, for tensioning the printing plates and, on the other hand, for maintaining the printing plates in a stable position during operation of the web printing press, in particular under the action of the strong pressure forces of the impression cylinder.
- the pressure plates are tensioned by connecting the hydraulic system in each of the inserts 10 to an external pressure source and thus applying a predeterminable force to all the pistons 15.
- the clamping bar 7 is opposed by the piston 15 4 pivoted accordingly, the tapered end of the clamping bar 7 is lifted from the groove boundary wall of the insert 10 by a small distance, as illustrated in Figure 4. This process naturally takes place when, as in the example under consideration, the forme cylinder is set up to accommodate several printing plates, at all fastening and clamping points at the same time.
- both plate ends which engage in each of the grooves 6, are clamped together at the same time between the clamping bar 7 and the clamping piece 9 or clamping piece 9 and the adjacent groove boundary wall.
- the tensioning and the fastening of both plate ends in each groove thus takes place simultaneously by a single process, namely the actuation of the pistons 15 and the resulting pivoting of the clamping bars 7. Since their tapered end practically extends to the height of the cylinder jacket and lengthens when pivoting moves the envelope of this lateral surface, the pressure plate in question is stretched without deforming, only in the circumferential direction, but not under deformation over an edge or rounded base.
- the hydraulically operating tensioning device ensures a force that acts uniformly on the pressure plate, the device allows perfect and strong tensioning, so that, above all, rigid nickel plates can be clamped properly.
- the attachment 21 in question protrudes into an adapted recess 23 in the side wall of the insert 10, the ends of which likewise protrude on the end faces of the forme cylinder 1.
- a screw 24 is screwed into each of the two threaded bores 22, which according to FIG. 5 finds space together with the projection 21 in the mentioned recess 23 of the insert 10 and the head thereof through a bore 25 made in the extension of the screw 24, which is on the outer circumference of the insert 10 opens, is accessible for screwing.
- the screws 24, which are supported on the bottom of the cutouts 23, need only be tightened sufficiently.
- the radially outer edge of the tensioning support 8 is rounded on the side facing the tensioning bar 7.
- the tensioning support 8 is in its raised clamping position. The pressure acting on the pistons 15 can then be switched off and the hydraulic system can be separated from the external pressure source.
- the described fastening and tensioning device calls for a groove 6 of only a small width and, in particular, only a narrow circumferential gap at the mouth of the groove, the width of which is dimensioned only so large that the tapered end of the tensioning strip 7 and the two plate ends protruding into this circumferential gap have sufficient play for clamping the plate;
- the width of the peripheral gap need only be approximately four to five times the printing plate thickness.
- the forme cylinder according to the invention can of course also be set up to accommodate more than two printing plates and can be equipped with a corresponding number of grooves and fastening devices; but it can also carry only a single pressure plate, in which case only a single groove is provided for the two plate ends.
- the forme cylinder is also equipped with an internal heating and cooling system, which allows heating or cooling with a circulating heating or cooling medium as soon as the printing plates are clamped.
- axially parallel lines 26 (FIGS. 1, 2 and 5) are provided in the cylinder body in the vicinity of the cylinder jacket are evenly distributed over the circumferential area.
- adjacent lines 26 are mutually connected in pairs by parallel connecting channels 27 (FIGS. -2 and 5) such that the lines 26 each have a continuous heating and cooling coil in each cylinder half delimited by the two grooves 6 form.
- Via radial lines 28 (FIGS. 1, 2 and 5) the beginning and end of each heating and cooling coil are connected to a coaxial line 29 (FIGS. 1 and 2) which runs in the shaft journal 3 and which connects the heating or coolant supply line, for example in the inner channel. and contains the return line, for example in the radially outer channel.
- the forme cylinder described is particularly suitable for working with an impression cylinder, which is described in older Swiss patent application No. 258/83 by the same applicant and which carries a rubber blanket which is fastened in a groove of very small width.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Rotary Presses (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Printing Plates And Materials Therefor (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84201435T ATE33791T1 (de) | 1983-11-14 | 1984-10-08 | Zum aufspannen von stichdruckplatten eingerichteter formzylinder fuer rollendruckmaschinen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH611183 | 1983-11-14 | ||
CH6111/83 | 1983-11-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0142874A1 true EP0142874A1 (fr) | 1985-05-29 |
EP0142874B1 EP0142874B1 (fr) | 1988-04-27 |
Family
ID=4304440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84201435A Expired EP0142874B1 (fr) | 1983-11-14 | 1984-10-08 | Cylindre d'impression avec dispositif de fixation des clichés en creux, pour rotatives |
Country Status (9)
Country | Link |
---|---|
US (1) | US4598642A (fr) |
EP (1) | EP0142874B1 (fr) |
JP (1) | JPS60116447A (fr) |
AT (1) | ATE33791T1 (fr) |
AU (1) | AU560116B2 (fr) |
CA (1) | CA1227373A (fr) |
DD (1) | DD228493A5 (fr) |
DE (1) | DE3470688D1 (fr) |
SU (1) | SU1366046A3 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0246499A2 (fr) * | 1986-05-15 | 1987-11-25 | BASF Aktiengesellschaft | Dispositif de serrage pour plaques d'impression |
WO2009000560A1 (fr) * | 2007-06-22 | 2008-12-31 | Koenig & Bauer Aktiengesellschaft | Cylindre d'une presse rotative avec un dispositif pour retenir au moins un blanchet sur le cylindre |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3516682A1 (de) * | 1985-05-09 | 1986-11-13 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Vorrichtung zum parallelen spannen von druckplatten auf dem plattenzylinder von druckmaschinen |
DE3626243A1 (de) * | 1986-08-02 | 1988-02-04 | Koenig & Bauer Ag | Druckplattenbefestigungs- und spannvorrichtung |
DE3731039A1 (de) * | 1987-09-16 | 1989-03-30 | Koenig & Bauer Ag | Einrichtung zum klemmen biegsamer druckplatten auf dem plattenzylinder einer rotationsdruckmaschine |
CA2038809C (fr) * | 1990-04-24 | 1998-12-08 | Albert Gevis | Methode et appareil de montage de plaque d'impression a gorge etroite |
US5107763A (en) * | 1990-04-24 | 1992-04-28 | Rockwell International Corporation | Narrow gap plate mounting apparatus and method |
US5335046A (en) * | 1993-02-22 | 1994-08-02 | Intergraph Corporation | Clamping mechanism for use on a rotatable plotter drum |
FR2709091B1 (fr) * | 1993-08-20 | 1995-11-10 | Heidelberg Harris Sa | Dispositif à lame interchangeable pour maintenir une plaque d'impression sur un cylindre porte-plaque dans une imprimante rotative, et outil de démontage de la lame. |
US5687647A (en) * | 1996-04-26 | 1997-11-18 | Heidelberger Druckmaschinen Ag | Plate cylinder with fixed tensioning plate mounting device |
EP1295719A3 (fr) * | 1999-10-08 | 2006-05-03 | Koenig & Bauer Aktiengesellschaft | Cylindre de presse rotative |
EP1393925A1 (fr) | 2002-09-02 | 2004-03-03 | Kba-Giori S.A. | Plaque d'impression taille-douce |
DE102004042342B4 (de) * | 2004-09-01 | 2008-02-14 | Maschinenfabrik Wifag | Spanneinrichtung für einen Spannkanal eines Zylinderkörpers, Druckformzylinder und Verfahren zur Herstellung |
US8122826B2 (en) * | 2008-04-28 | 2012-02-28 | Goss International Americas, Inc. | Infinitely variable cut off printing press |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2056991A (en) * | 1934-03-13 | 1936-10-13 | Hoe & Co R | Printing cylinder |
US2837025A (en) * | 1956-05-08 | 1958-06-03 | American Can Co | Clamping and tensioning device |
US3382799A (en) * | 1966-07-29 | 1968-05-14 | Cottrell Company | Plate lockup means for offset or wraparound printing presses |
GB1127904A (en) * | 1964-10-26 | 1968-09-18 | Winkler Fallert & Co Maschf | Device for fixing flexible printing plates on a plate cylinder of a printing machine |
US3715981A (en) * | 1970-06-29 | 1973-02-13 | Hamilton Tool Co | Fluid actuator and lock for printing plate cylinders |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1052361A (fr) * | ||||
US1643145A (en) * | 1925-08-28 | 1927-09-20 | Winkler Carl | Plate cylinder for rotary intaglio printing |
US2900904A (en) * | 1953-06-08 | 1959-08-25 | Hantscho George | Printing press rollers |
US2965025A (en) * | 1959-04-02 | 1960-12-20 | Cottrell Company | Printing plate lockup for wrap around plates |
DE6930610U (de) * | 1968-08-01 | 1973-09-13 | Nebiolo Spa | Zylinder zum festen anbringen von blattfoermigen teilen, insbesondere formzylinder von rotationsdruckmaschinen zum tragen von biegsamen druckformen. |
US3608487A (en) * | 1969-08-27 | 1971-09-28 | Harris Intertype Corp | Flexible plate clamping assembly including inwardly bowed spring and movable jaw |
US4292104A (en) * | 1979-09-13 | 1981-09-29 | Corning Glass Works | Decalcomania manufacture |
-
1984
- 1984-10-08 AT AT84201435T patent/ATE33791T1/de active
- 1984-10-08 DE DE8484201435T patent/DE3470688D1/de not_active Expired
- 1984-10-08 EP EP84201435A patent/EP0142874B1/fr not_active Expired
- 1984-10-18 CA CA000465729A patent/CA1227373A/fr not_active Expired
- 1984-10-24 US US06/664,486 patent/US4598642A/en not_active Expired - Fee Related
- 1984-10-26 AU AU34718/84A patent/AU560116B2/en not_active Ceased
- 1984-11-12 DD DD84269346A patent/DD228493A5/de not_active IP Right Cessation
- 1984-11-12 JP JP59236856A patent/JPS60116447A/ja active Granted
- 1984-11-13 SU SU843812265A patent/SU1366046A3/ru active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2056991A (en) * | 1934-03-13 | 1936-10-13 | Hoe & Co R | Printing cylinder |
US2837025A (en) * | 1956-05-08 | 1958-06-03 | American Can Co | Clamping and tensioning device |
GB1127904A (en) * | 1964-10-26 | 1968-09-18 | Winkler Fallert & Co Maschf | Device for fixing flexible printing plates on a plate cylinder of a printing machine |
US3382799A (en) * | 1966-07-29 | 1968-05-14 | Cottrell Company | Plate lockup means for offset or wraparound printing presses |
US3715981A (en) * | 1970-06-29 | 1973-02-13 | Hamilton Tool Co | Fluid actuator and lock for printing plate cylinders |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0246499A2 (fr) * | 1986-05-15 | 1987-11-25 | BASF Aktiengesellschaft | Dispositif de serrage pour plaques d'impression |
EP0246499A3 (en) * | 1986-05-15 | 1989-10-11 | Basf Aktiengesellschaft | Clamping device for printing plates |
WO2009000560A1 (fr) * | 2007-06-22 | 2008-12-31 | Koenig & Bauer Aktiengesellschaft | Cylindre d'une presse rotative avec un dispositif pour retenir au moins un blanchet sur le cylindre |
Also Published As
Publication number | Publication date |
---|---|
DE3470688D1 (en) | 1988-06-01 |
JPS60116447A (ja) | 1985-06-22 |
SU1366046A3 (ru) | 1988-01-07 |
ATE33791T1 (de) | 1988-05-15 |
EP0142874B1 (fr) | 1988-04-27 |
CA1227373A (fr) | 1987-09-29 |
DD228493A5 (de) | 1985-10-16 |
AU3471884A (en) | 1985-05-23 |
AU560116B2 (en) | 1987-03-26 |
US4598642A (en) | 1986-07-08 |
JPH0154196B2 (fr) | 1989-11-17 |
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Legal Events
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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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AK | Designated contracting states |
Designated state(s): AT CH DE FR GB IT LI SE |
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17P | Request for examination filed |
Effective date: 19851114 |
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17Q | First examination report despatched |
Effective date: 19870113 |
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GRAA | (expected) grant |
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