EP0116681B1 - Transporting device for conveying strip or sheet like photographic layer carriers through chemical baths in developing machines - Google Patents

Transporting device for conveying strip or sheet like photographic layer carriers through chemical baths in developing machines Download PDF

Info

Publication number
EP0116681B1
EP0116681B1 EP83108405A EP83108405A EP0116681B1 EP 0116681 B1 EP0116681 B1 EP 0116681B1 EP 83108405 A EP83108405 A EP 83108405A EP 83108405 A EP83108405 A EP 83108405A EP 0116681 B1 EP0116681 B1 EP 0116681B1
Authority
EP
European Patent Office
Prior art keywords
roller
lamellae
conveying system
rollers
layer
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
Application number
EP83108405A
Other languages
German (de)
French (fr)
Other versions
EP0116681A1 (en
Inventor
Hermann Kümmerl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT83108405T priority Critical patent/ATE34624T1/en
Publication of EP0116681A1 publication Critical patent/EP0116681A1/en
Application granted granted Critical
Publication of EP0116681B1 publication Critical patent/EP0116681B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/08—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material
    • G03D3/13—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly
    • G03D3/132—Liquid processing apparatus involving immersion; Washing apparatus involving immersion having progressive mechanical movement of exposed material for long films or prints in the shape of strips, e.g. fed by roller assembly fed by roller assembly

Definitions

  • the invention relates to a transport device with the features of the preamble of claim 1.
  • transport devices are known for example from DE-A-31 27 016. They are used by photo amateurs as well as in the professional photo sector and are used for the development, washing and fixing of exposed photo paper.
  • the transport of the paper is usually carried out by pairs of transport rollers, the photo paper running under frictional engagement through the passage gap between two mutually interacting transport rollers. At least one of the two rollers is driven and the passage gap for the photographic layers is designed to be slightly flexible. The flexibility of the passage gap is particularly important for the development process because the development process can be adversely affected by excessive pressure on the photosensitive layer.
  • the belt-like or sheet-like photographic layer supports are transported through the photochemical baths with the aid of a conveyor roller, in which disk-shaped or similarly shaped transport elements are arranged on a roller core.
  • These transport elements are designed to be flexible in the radial direction. The flexibility is achieved there, however, in that the elements arranged continuously on the core or else the elements arranged at a distance from one another consist of an elastic material, such as foam rubber, rubber, or the like, or are designed in the form of brushes.
  • Pressure rollers of this type can, however, be disadvantageous since foam-like, in particular porous material can undesirably store oxidation products of the developer.
  • the invention has for its object to provide a transport device for carrying out tape or sheet-shaped photographic supports through photochemical baths of developing machines, which is simple and inexpensive to manufacture and maintain and which ensures high quality of the development products even over longer periods of time.
  • the pressure elements are designed as elastic radially deformable hat slats, the axis of symmetry of which is parallel to the roller axis and which have the shape of hemispherical shells or conical shells which are open on one side and whose open side is approximately at right angles to the shaft core .
  • the invention provides a transport device which treats the paper extremely gently, with the individual, radially flexible pressure elements ensuring a constant contact pressure for the entire roll length.
  • Each of the elements acts as an isolated, circular, spring element axially decoupled from the other, so that any non-roundness in the roller run may not have a significant effect on the contact pressure that is exerted on the paper.
  • the spring action is not limited to a defined spring direction, as is the case, for example, with hard rollers mounted in elongated holes, but the outer surfaces of the elements interacting with the paper can gently nestle against the paper surface and any existing paper curvatures without the paper is subjected to a hard linear load between the rollers.
  • the hat slats be fastened to the shaft core with the wall section axially opposite the open side (claim 2).
  • the hat slats can be formed in one piece with a bearing sleeve which is arranged on the shaft core with an adhesive seat and which projects axially beyond the open side.
  • the wall angle of the conically shaped hat slats should be about 45 °. It is advantageous if the hollow bodies of the hat slats are made of polyethylene.
  • two adjacent hat slats should be parallel with each other with their open sides.
  • the device is characterized in that one or more sections of the hollow body cross section is designed as an elastically resilient bellows.
  • the inside of the transport device for carrying out band-shaped or sheet-shaped photographic layer supports has a plurality of parallel transport rollers, with three rollers lying next to one another at the same time in the so-called “roller centers” 1-4, and the roller facing the uncoated rear side of the layer support being designed as a lamella roller 5 is.
  • This is provided with a plurality of resilient lamellar disks 7 which protrude radially from the roller axis 6 and whose peripheral surfaces protrude or touch the surfaces 8 of the outer rollers 9, 10.
  • the passage gaps 11 for the photographic layer supports lie between the lamella roller 5 and the outer rollers 9, 10.
  • the outer rollers 9, 10 are mounted with a rigid mutual spacing 37 in the rack side parts 12, 13.
  • the lamellar roller 5 has a shaft core 14 and the lamellar disks 7 are designed as flat perforated disks which are attached to the core 14 and which are fixed on the shaft core 14 by spacer disks 15 of smaller diameter lying between them.
  • the ends 16, 17 of the shaft core 14 are rotatably supported in bearings 18, 19 of the rack side parts 12, 13.
  • the central reversing roller located in the lower feed-through U-arch 20 of the rack is also designed as a lamellar roller 21 which is surrounded by a plurality of rigidly arranged U-shaped guide rollers 22.
  • the guide rollers 22 are also provided with fins, which need not be radially flexible.
  • the axial offset of the lamellae from the adjacent guide rollers 22 enables the lamellae to be immersed in the spaces between the lamellae, so that a paper jam can be avoided.
  • a plurality of guide elements 23 designed as elongated rods which penetrate the lamellar rollers within the roller diameter 24 of the lamellar roller 5.
  • a guide element designed as a U-shaped bracket passes through a plurality of rollers lying one above the other trios, the free U-legs 25 form the guide rods and the guide elements in the area of their U-head 26 are fastened to a holding rod 27 which passes through the rack parallel to the rollers.
  • All guide rollers of the rack are driven.
  • the drive takes place within a roller trio, i. H. between the two outer rollers and the middle roller by pinions, which are located on the outside of a rack side part (e.g. 12).
  • the roller trios are driven by toothed or chain drives, which are arranged on the outside of the other rack side part (e.g. 13) for reasons of balance.
  • the guide rollers are driven by planet gears, which are driven by a sun gear arranged on the shaft of the lower lamella roller 21, which acts as a deflection roller.
  • the drive gears / chain drives are not shown in the drawing figures.
  • the plane of the roll trios 1-4 is inclined with respect to the main directions 28, 28 'so that the outer rolls are offset in the direction of flow with respect to the middle roll, so that the front paper edge, the roll trio, is slightly bent towards the guide element 23 in the direction of arrow 29 as it exits the passage gap .
  • the upper part 30 of the rack lying above the liquid level 31 can be removed from the lower part 32 by means of a parting line 33 which runs approximately horizontally between the uppermost roll trio 34 and further guide rollers.
  • Lamellar rollers 35, 35a similar to the rollers 5, and a smooth roller 35b, similar to the rollers 9, 10, are arranged on the upper side of the rack 30 for guiding or conveying the paper.
  • Conveyor or guide rollers 39 and 39a are located on the outlet side of the rack upper part.
  • a bolt 36 which is only sketched, ensures that the upper part and lower part are exactly adjusted to one another in the operating position.
  • hat slats 50 are pushed onto a shaft core shown in sections in such a way that two are each directed with their open sides 51 towards one another and so to speak form a pair of hat slats.
  • the open sides 51 run at right angles to the roller axis 6.
  • the hat slats 50 are provided in their peripheral region with a first substantially cylindrical section 52, the outer side 53 of which forms the contact surface with the photographic paper.
  • This cylindrical section 52 is followed by a conical wall part 54, which encloses an angle 55 of approximately 45 ° with the roller axis 6.
  • the wall part 54 merges in one piece into a bearing sleeve 56, which protrudes somewhat beyond the open side 51, so that the lower edges of the outer sides 53 of two cones lying against one another with their open sides 51 have a deflection distance 57.
  • the deflection movement of the edges of the hat slats 50 under radial pressure is indicated by the arrows 58.
  • FIG. 5 Another arrangement of the hat slats relative to one another is shown in FIG. 5. With their open sides 51 they do not point towards each other, but in the same direction. However, with such an arrangement, care must be taken that, for example, the hat slats of the other shaft end point in the opposite direction.
  • the hat slats shown in FIG. 5 are provided with bellows 59 arranged in the wall part 54.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)

Abstract

An apparatus for conveying photographic layer-bearing carriers in the shape of webs or sheets through photochemical baths of developing machines, with passages for the layer-bearing carriers open between one or several pairs of transport rollers, some of which are driven, and providing a passage gap for the layer carriers between conveying rollers being elastically resilient in a direction radial with regard to the roller shaft. In order to guarantee a truly unobjectionably developed product, with the minimum possible of assembly and maintenance costs, the roller which is destined to make contact with the uncoated reverse side of a layer-bearing carrier is a roller of variable cross-sectional area, having a number of radially yielding contact elements arranged side by side on the roller shaft, which elements are disc-shaped lamellae or mushroom-shaped lamellae the peripheries of which are directed toward the second or external roller of a roller pair, or are in contact with the peripheral wall of the last-mentioned roller.

Description

Die Erfindung betrifft eine Transportvorrichtung mit den Merkmalen des Oberbegriffes des Patentanspruches 1. Derartige Transportvorrichtungen sind beispielsweise aus der DE-A-31 27 016 bekannt. Sie werden sowohl von Foto-Amateuren wie auch im professionellen Fotobereich eingesetzt und dienen der Entwicklung, Wässerung und Fixierung von belichtetem Fotopapier. Der Transport des Papiers wird in der Regel durch Transportwalzenpaare vorgenommen, wobei das Fotopapier unter Reibschluß den Durchtrittsspalt zwischen je zwei miteinander zusammenwirkenden Transportwalzen durchläuft. Wenigstens eine der beiden Walzen ist dabei angetrieben und der Durchtrittsspalt für die fotografischen Schichtträger ist in geringem Maße nachgiebig gestaltet. Die Nachgiebigkeit des Durchtrittsspaltes ist insbesondere deshalb von wesentlicher Bedeutung für den Entwicklungsvorgang, weil durch zu hohen Druck auf die fotoempfindliche Schicht der Entwicklungsprozeß negativ beeinflußt werden kann. Andererseits ist aber auch ein gewisser Minimaldruck erforderlich, da zum einen eine sichere Führung des schlüpfrigen papiermaterials durch die Transportrollen hindurch gewährleistet sein muß, wenn ein papierstau vermieden werden soll und zum anderen durch die der fotoempfindlichen Schichtoberseite zugewandte Rolle ein gewisses Abpressen der auf der Schichtoberseite beim Entwicklungsvorgang entstehenden Bromkali-Rückstände erfolgen soll. Zudem ist es von Bedeutung, daß der Walzendruck immer weitgehend gleichmäßig erfolgt, da sich sonst gegebenenfalls streifig sichtbare Unterschiede bei den Entwicklungsprodukten zeigen können.The invention relates to a transport device with the features of the preamble of claim 1. Such transport devices are known for example from DE-A-31 27 016. They are used by photo amateurs as well as in the professional photo sector and are used for the development, washing and fixing of exposed photo paper. The transport of the paper is usually carried out by pairs of transport rollers, the photo paper running under frictional engagement through the passage gap between two mutually interacting transport rollers. At least one of the two rollers is driven and the passage gap for the photographic layers is designed to be slightly flexible. The flexibility of the passage gap is particularly important for the development process because the development process can be adversely affected by excessive pressure on the photosensitive layer. On the other hand, however, a certain minimum pressure is also necessary, because on the one hand a reliable guiding of the slippery paper material through the transport rollers must be ensured if a paper jam is to be avoided and on the other hand a certain pressing of the on the top of the layer by the roller facing the photosensitive layer Development process resulting bromide of residues should take place. In addition, it is important that the roller pressure is always largely uniform, since otherwise there may be streaky visible differences in the development products.

Bei der in der genannten DE-A 31 27 016 beschriebenen Vorrichtung werden die band-oder blattförmigen fotografischen Schichtträger mit Hilfe einer Förderwalze durch die fotochemischen Bäder transportiert, bei der auf einem Walzenkern scheibenförmig oder ähnlich gestaltete Transportelemente angeordnet sind. Diese Transportelemente sind in Radialrichtung nachgiebig gestaltet. Die Nachgiebigkeit wird dort allerdings dadurch erreicht, daß die durchgehend auf dem Kern angeordneten Elemente oder auch die mit Abstand voneinander angeordneten Elemente aus einem elastischen Material, wie beispielsweise Schaumgummi, Gummi, od. dgl. bestehen oder auch in Form von Bürsten ausgebildet sind. Andruckwalzen dieser Art können aber nachteilig sein, da schaumförmiges, insbesondere poröses Material Oxidationsprodukte des Entwicklers in unerwünschter Weise speichern kann.In the device described in the aforementioned DE-A 31 27 016, the belt-like or sheet-like photographic layer supports are transported through the photochemical baths with the aid of a conveyor roller, in which disk-shaped or similarly shaped transport elements are arranged on a roller core. These transport elements are designed to be flexible in the radial direction. The flexibility is achieved there, however, in that the elements arranged continuously on the core or else the elements arranged at a distance from one another consist of an elastic material, such as foam rubber, rubber, or the like, or are designed in the form of brushes. Pressure rollers of this type can, however, be disadvantageous since foam-like, in particular porous material can undesirably store oxidation products of the developer.

Beim vorbekannten Stand der Technik wird die Nachgiebigkeit des Durchtrittsspaltes im übrigen auf konstruktiv verschiedene Weise erreicht:

  • a) Seit langer Zeit finden für die genannten Transportwalzen PVC-Walzen Verwendung, die sich aufgrund ihrer chemischen Resistenz in gewisser Weise auch bewährt haben. Allerdings ist die Herstellung dieser Walzen relativ aufwendig, da sie wegen ihrer Materialhärte sehr genau auf Rundlauf bearbeitet werden müssen, wenn bei der Walzendrehung Druckschwankungen zwischen den Walzen vermieden werden sollen. Diese harten Walzen wurden dann federnd gelagert insofern, als man mindestens eine Walze eines jeden Walzenpaares mit einer Langlochlagerung versehen hat und mittels Schrauben- oder Blattfedern ein federndes Zusammenpressen der beiden Walzen gesichert hat. Jedoch haben Schraubenfedern den grundsätzlichen Nachteil, daß sich längerfristig Entwicklungsrückstände in den Federkörpern absetzen, so daß die Federn nicht mehr "atmen" können. Blattfedern haben sich nicht als dauerhaft erwiesen, da die aggressiven chemischen Einflüsse in den Entwicklungsbädern das Federmaterial verspröden, so daß die Federeigenschaften nachlassen. Die Lagerung mit Federn hat sich langfristig sehr als montage-, wartungs- und kostenintensiv erwiesen.
  • b) Ebenfalls seit längerem finden Gummiwalzen als Transportwalzen Verwendung. Gummiwalzen haben aufgrund ihrer Weichheit zwar den Vorteil, daß aufwendige Federungen im Lagerbereich nicht unbedingt notwendig sind. Allerdings hat sich die Herstellung der Gummiwalzen nicht als problemfrei erwiesen, da Gummi nicht so chemisch resistent ist wie PVC. Man hat zwar in der Vergangenheit Gummimischungen entwikkelt, die für die fotochemischen Bäder ausreichende chemische Resistenz aufweisen. Aber auch diese Gummiwalzen sind in gewisser Weise nachteilig, da die in Frage kommenden Gummimischungen nur bedingt nachgiebig sind, und der Gummi insbesondere einen gewissen Quellprozeß in den Entwicklungsbädern durchführt, der nicht gezielt steuerbar ist. Dieser Quellprozeß kann zu einem Mehrdurchmesser der Walzen von 1/10 bis 2/10 mm führen - Größenordnungen, die sich negativ auf den Anpreßdruck und damit auf das Entwicklungsprodukt auswirken können, insbesondere wenn man an die Toleranz der Walzenlagerung nicht allzu hohe Anforderungen stellen will.
  • c) Einen weiteren Stand der Technik bilden Transportwalzen mit einem textilen Überzug, der gewisse Federeigenschaften mit sich bringt. Dieser textile Überzug hat allerdings den gravierenden Nachteil, daß sich Entwicklungsrückstände in ihm absetzen, so daß langfristig die Entwicklungsergebnisse durch Rückstände in den Walzen negativ beeinflußt werden. Um diesen Negativeinfluß möglichst gering zu halten, sind die Textil- überzüge etwa im Zeitraum von drei bis vier Monaten zu wechseln, was mit einem erheblichen Aufwand an Wartung verbunden ist, da die Transportracks dabei vollständig zerlegt werden müssen.
  • d) Schließlich sind noch sogenannte Schaumwalzen als Transportwalzen zu erwähnen, die die gleichen negativen Eigenschaften wie die textil- überzogenen Walzen haben. Besonders negativ an den Schaumwalzen wirkt sich aber die Saugeigenschaft der Walzen aus, da beim Herausnehmen eines Racks aus einem Bad dem Tank sehr viel Badflüssigkeit entzogen wird. Bis nach dem Herausnehmen aus dem Bad die Walzen schließlich getrocknet sind, d.h. die Restflüssigkeit aus ihnen abgetropft ist, vergeht etwa ein Tag. Weiterhin ist die Reinigung der Schaumwalzen relativ schwierig. Nicht zuletzt ist das hohe Gewicht der vollgesogenen Schaumwalzen beim Herausnehmen der Racks aus dem Tank zu erwähnen; ein vollgesogenes Schaumwalzenrack wiegt etliche Zig-Kilogramm, so daß zum Herausnehmen kleine Krangalgen erforderlich sind.
In the prior art, the flexibility of the passage gap is achieved in various other ways:
  • a) PVC rollers have been used for a long time for the transport rollers mentioned, which have also proven themselves to some extent due to their chemical resistance. However, the production of these rollers is relatively complex since, because of their material hardness, they have to be machined very precisely to ensure true running if pressure fluctuations between the rollers are to be avoided when the rollers are rotating. These hard rollers were then resiliently mounted in that at least one roller of each pair of rollers was provided with an elongated hole bearing and a resilient compression of the two rollers was ensured by means of helical or leaf springs. However, coil springs have the fundamental disadvantage that long-term development residues settle in the spring bodies, so that the springs can no longer "breathe". Leaf springs have not proven to be permanent, since the aggressive chemical influences in the development baths embrittle the spring material, so that the spring properties deteriorate. Storage with springs has proven to be very assembly, maintenance and cost intensive in the long term.
  • b) Rubber rollers have also been used for a long time as transport rollers. Due to their softness, rubber rollers have the advantage that complex suspensions in the bearing area are not absolutely necessary. However, the production of the rubber rollers has not proven to be problem-free, since rubber is not as chemically resistant as PVC. In the past, rubber mixtures have been developed which have sufficient chemical resistance for the photochemical baths. However, these rubber rollers are also somewhat disadvantageous, since the rubber mixtures in question are only partially flexible, and the rubber in particular carries out a certain swelling process in the development baths, which cannot be controlled in a targeted manner. This swelling process can lead to a larger diameter of the rolls from 1/10 to 2/10 mm - orders of magnitude that can have a negative impact on the contact pressure and thus on the development product, especially if the tolerance of the roll bearing is not too high.
  • c) Another state of the art are transport rollers with a textile covering that has certain spring properties. However, this textile covering has the serious disadvantage that development residues settle in it, so that in the long term the development results are negatively influenced by residues in the rollers. In order to keep this negative influence as low as possible, the textile coverings have to be changed approximately every three to four months, which involves a considerable amount of maintenance, since the transport tracks have to be completely disassembled.
  • d) Finally, so-called foam rollers are to be mentioned as transport rollers, which have the same negative properties as the textile-coated rollers. However, the suction properties of the rollers have a particularly negative effect on the foam rollers, since when you remove a rack from a bath, the tank has a lot much bath fluid is withdrawn. It takes about a day until the rollers are finally dry after removing them from the bath, ie the residual liquid has dripped out of them. Furthermore, cleaning the foam rollers is relatively difficult. Last but not least, the high weight of the soaked foam rollers when removing the racks from the tank should be mentioned; a soaked foam roller rack weighs several tens of kilograms, so that small crane gallows are required to remove it.

Der Erfindung liegt die Aufgabe zugrunde, eine Transportvorrichtung zur Durchführung von band- oder blattförmigen fotografischen Schichtträgern durch fotochemische Bäder von Entwicklungsmaschinen vorzuschlagen, welche einfach und preisgünstig herstellbar und zu warten ist und die eine hohe Qualität der Entwicklungsprodukte auch über längere Zeitspannen hin gewährleistet. Diese Aufgabe wird gelöst, indem bei einer Vorrichtung gemäß Oberbegriff des Patentanspruches 1 die Andruckelemente als elastische radial verformbare Hutlamellen ausgebildet sind, deren Symmetrieachse zur Walzenachse parallel ist und die die Form von einseitig offenen Halbkugelschalen oder Kegelmänteln haben, deren offene Seite etwa rechtwinklig zum Wellenkern verläuft.The invention has for its object to provide a transport device for carrying out tape or sheet-shaped photographic supports through photochemical baths of developing machines, which is simple and inexpensive to manufacture and maintain and which ensures high quality of the development products even over longer periods of time. This object is achieved in that, in a device according to the preamble of claim 1, the pressure elements are designed as elastic radially deformable hat slats, the axis of symmetry of which is parallel to the roller axis and which have the shape of hemispherical shells or conical shells which are open on one side and whose open side is approximately at right angles to the shaft core .

Durch die Erfindung wird eine Transportvorrichtung geschaffen, die das papier außerordentlich sanft behandelt, wobei durch die einzelnen, radial nachgiebigen Andruckelemente ein für die ganze Walzenlänge gleichbleibender kontinuierlicher Anpreßdruck gewährleistet ist. Jedes der Elemente wirkt gleichsam als isoliertes, rundlaufendes, von den anderen axial abgekoppeltes Federelement, also derart, daß sich möglicherweise vorhandene Unrundheiten im Walzenlauf nicht wesentlich auf den Anpreßdruck, der auf das Papier ausgeübt wird, auswirken. Auch ist die Federwirkung nicht auf eine definierte Federrichtung beschränkt, wie dies beispielsweise bei harten, in Langlöchern gelagerten Walzen der Fall ist, sondern die mit dem Papier zusammenwirkenden Außenflächen der Elemente können sich weich an die Papieroberfläche und möglicherweise vorhandene papierkrümmungen anschmiegen, ohne daß das Papier einer harten linienförmigen Belastung zwischen den Walzen ausgesetzt ist.The invention provides a transport device which treats the paper extremely gently, with the individual, radially flexible pressure elements ensuring a constant contact pressure for the entire roll length. Each of the elements acts as an isolated, circular, spring element axially decoupled from the other, so that any non-roundness in the roller run may not have a significant effect on the contact pressure that is exerted on the paper. Also, the spring action is not limited to a defined spring direction, as is the case, for example, with hard rollers mounted in elongated holes, but the outer surfaces of the elements interacting with the paper can gently nestle against the paper surface and any existing paper curvatures without the paper is subjected to a hard linear load between the rollers.

Für eine bevorzugte Ausführungsform wird vorgeschlagen, daß die Hutlamellen mit dem der offenen Seite axial gegenüberliegenden Wandungsabschnitt auf dem Wellenkern befestigt sind (Patentanspruch 2). In Abwandlung dieser Ausführungsform können die Hutlamellen einstückig mit einer auf dem Wellenkern mit Haftsitz angeordneten Lagerhülse ausgebildet sein, die axial über die offene Seite hinaussteht. Der Wandungswinkel der konisch geformten Hutlamellen soll etwa 45° betragen. Vorteilhaft ist es, wenn die Hohlkörper der Hutlamellen aus polyethylen bestehen.For a preferred embodiment, it is proposed that the hat slats be fastened to the shaft core with the wall section axially opposite the open side (claim 2). In a modification of this embodiment, the hat slats can be formed in one piece with a bearing sleeve which is arranged on the shaft core with an adhesive seat and which projects axially beyond the open side. The wall angle of the conically shaped hat slats should be about 45 °. It is advantageous if the hollow bodies of the hat slats are made of polyethylene.

Gemäß Patentanspruch 6 soll eine jeweils gleiche Anzahl der Hutlamellen einer gemeinsamen Welle mit ihren offenen Enden zum einen bzw. zum anderen Wellenende hinweisen. Gemäß Patentanspruch 7 sollen je zwei benachbarte Hutlamellen mit ihren offenen Seiten parallel nebeneinander liegen. Gemäß patentanspruch 8 ist die Vorrichtung dadurch gekennzeichnet, daß ein oder mehrere Abschnitte des Hohlkörperquerschnittes als elastisch federnder Balg ausgebildet ist.According to claim 6, an equal number of hat slats of a common shaft with their open ends to one or the other end of the shaft. According to claim 7, two adjacent hat slats should be parallel with each other with their open sides. According to claim 8, the device is characterized in that one or more sections of the hollow body cross section is designed as an elastically resilient bellows.

Die Erfindung wird im folgenden unter Bezugnahme auf die Zeichnung näher erläutert. In den Figuren der Zeichnung und dem erläuternden Text sind jeweils nur bestimmte Aspekte von Ausführungsbeispielen dargestellt und nicht sämtliche für die Erfindung wesentlichen Merkmale. Die im kennzeichnenden Teil des Patentanspruches 1 aufgeführten Merkmale gehen im wesentlichen aus den Figuren 4 und 5 der Zeichnung hervor.The invention is explained in more detail below with reference to the drawing. In the figures of the drawing and the explanatory text, only certain aspects of exemplary embodiments are shown and not all the features essential to the invention. The features listed in the characterizing part of claim 1 are essentially apparent from Figures 4 and 5 of the drawing.

Die Transportvorrichtung zur Durchführung von band- oder blattförmigen fotografischen Schichtträgern weist in ihrem Inneren eine Mehrzahl von parallelen Transportwalzen auf, wobei bei den sogenannten "Walzentrios" 1-4 jeweils drei Walzen gleichebig nebeneinanderliegen und die der unbeschichteten Rückseite des Schichtträgers zugewandte Walze als Lamellenwalze 5 ausgebildet ist. Diese ist mit einer Vielzahl von radial von der Walzenachse 6 abstehenden nachgiebigen Lamellenscheiben 7 versehen, die mit ihren Umfangsflächen gegen die Oberflächen 8 der Außenwalzen 9, 10 vorstehen bzw. diese berühren. Zwischen der Lamellenwalze 5 und den Außenwalzen 9, 10 liegen die Durchtrittsspalte 11 für die fotografischen Schichtträger. Die Außenwalzen 9, 10 sind mit starrem gegenseitigen Abstand 37 in Rackseitenteilen 12, 13 gelagert.The inside of the transport device for carrying out band-shaped or sheet-shaped photographic layer supports has a plurality of parallel transport rollers, with three rollers lying next to one another at the same time in the so-called “roller centers” 1-4, and the roller facing the uncoated rear side of the layer support being designed as a lamella roller 5 is. This is provided with a plurality of resilient lamellar disks 7 which protrude radially from the roller axis 6 and whose peripheral surfaces protrude or touch the surfaces 8 of the outer rollers 9, 10. The passage gaps 11 for the photographic layer supports lie between the lamella roller 5 and the outer rollers 9, 10. The outer rollers 9, 10 are mounted with a rigid mutual spacing 37 in the rack side parts 12, 13.

Die Lamellenwalze 5 weist einen Wellenkern 14 auf und die Lamellenscheiben 7 sind als auf den Kern 14 aufgesteckte ebene Lochscheiben ausgebildet, die durch zwischen ihnen liegende Abstandsscheiben 15 geringeren Durchmessers auf dem Wellenkern 14 fixiert sind. Die Enden 16, 17 des Wellenkerns 14 sind in Lagern 18, 19 der Rackseitenteile 12, 13 drehgelagert.The lamellar roller 5 has a shaft core 14 and the lamellar disks 7 are designed as flat perforated disks which are attached to the core 14 and which are fixed on the shaft core 14 by spacer disks 15 of smaller diameter lying between them. The ends 16, 17 of the shaft core 14 are rotatably supported in bearings 18, 19 of the rack side parts 12, 13.

Die im unteren Durchführungs-U-Bogen 20 des Racks liegende zentrale Umkehrwalze ist ebenfalls als Lamellenwalze 21 ausgebildet, die von einer Mehrzahl von starr-U-förmig angeordneten Leitrollen 22 umgeben ist.The central reversing roller located in the lower feed-through U-arch 20 of the rack is also designed as a lamellar roller 21 which is surrounded by a plurality of rigidly arranged U-shaped guide rollers 22.

Die Leitrollen 22 sind ebenfalls mit Lamellen versehen, die aber nicht radial nachgiebig zu sein brauchen. Der axiale Versatz der Lamellen von den jeweils benachbarten Leitrollen 22 ermöglicht das Eintauchen der Lamellen in die Lamellenzwischenräume, so daß ein Papierstau vermieden werden kann.The guide rollers 22 are also provided with fins, which need not be radially flexible. The axial offset of the lamellae from the adjacent guide rollers 22 enables the lamellae to be immersed in the spaces between the lamellae, so that a paper jam can be avoided.

Zur Führung der quer zur Durchführungsrichtung verlaufenden Papierkanten ist eine Mehrzahl von als langgestreckte Stäbe ausgebildeten Leitelementen 23 vorgesehen, die die Lamellenwalzen innerhalb des Walzendurchmessers 24 der Lamellenwalze 5 durchsetzen. Bei einer Mehrzahl von übereinander angeordneten Walzentrios durchsetzt ein als U-förmiger Bügel ausgebildetes Leitelement mehrere übereinanderliegende Walzentrios, wobei die freien U-Schenkel 25 die Leitstäbe bilden und die Leitelemente im Bereich ihres U-Hauptes 26 an einer das Rack parallel zu den Walzen durchsetzenden Haltestange 27 befestigt sind.For guiding the paper edges running transversely to the feed-through direction, a plurality of guide elements 23 designed as elongated rods are provided which penetrate the lamellar rollers within the roller diameter 24 of the lamellar roller 5. In the case of a plurality of roller trios arranged one above the other, a guide element designed as a U-shaped bracket passes through a plurality of rollers lying one above the other trios, the free U-legs 25 form the guide rods and the guide elements in the area of their U-head 26 are fastened to a holding rod 27 which passes through the rack parallel to the rollers.

Alle Führungswalzen des Racks sind angetrieben. Der Antrieb erfolgt innerhalb eines Walzentrios, d. h. zwischen den beiden Außenwalzen und der Mittelwalze durch Zahntriebe, die auf der Außenseite eines Rackseitenteils (z.B. 12) liegen. Der Antrieb der Walzentrios untereinander erfolgt durch Zahn- oder Kettentriebe, die aus Gleichgewichtsgründen auf der Außenseite des anderen Rackseitenteils (z.B. 13) angeordnet sind. Der Antrieb der Leitrollen erfolgt über Planetenräder, die über ein auf der Welle der als Umlenkwalze wirksamen unteren Lamellenwalze 21 angeordnetes Sonnenrad angetrieben werden. Die Antriebszahnräder/Kettentriebe sind in den Zeichnungsfiguren nicht dargestellt.All guide rollers of the rack are driven. The drive takes place within a roller trio, i. H. between the two outer rollers and the middle roller by pinions, which are located on the outside of a rack side part (e.g. 12). The roller trios are driven by toothed or chain drives, which are arranged on the outside of the other rack side part (e.g. 13) for reasons of balance. The guide rollers are driven by planet gears, which are driven by a sun gear arranged on the shaft of the lower lamella roller 21, which acts as a deflection roller. The drive gears / chain drives are not shown in the drawing figures.

Die Ebene der Walzentrios 1-4 ist gegenüber den Hauptdurchlaufrichtungen 28,28' so geneigt, daß die Außenwalzen in Durchlaufrichtung gegenüber der Mittelwalze vorversetzt sind, so daß die vordere Papierkante das Walzentrio beim Austritt aus dem Durchtrittsspalt geringfügig zum Leitelement 23 in Pfeilrichtung 29 hingebogen wird.The plane of the roll trios 1-4 is inclined with respect to the main directions 28, 28 'so that the outer rolls are offset in the direction of flow with respect to the middle roll, so that the front paper edge, the roll trio, is slightly bent towards the guide element 23 in the direction of arrow 29 as it exits the passage gap .

Das über dem Flüssigkeitsspiegel 31 liegende Oberteil 30 des Racks ist vom Unterteil 32 mittels einer Teilfuge 33 abnehmbar, die etwa horizontal zwischen dem obersten Walzentrio 34 und weiteren Leitrollen verläuft. Am Rack-Oberteil 30 sind auf der Einlaufseite Lamellenwalzen 35, 35a, ähnlich wie die Walzen 5, und eine glatte Walze 35b, ähnlich wie die Walzen 9, 10, zur Führung bzw. Förderung des Papiers angeordnet.The upper part 30 of the rack lying above the liquid level 31 can be removed from the lower part 32 by means of a parting line 33 which runs approximately horizontally between the uppermost roll trio 34 and further guide rollers. Lamellar rollers 35, 35a, similar to the rollers 5, and a smooth roller 35b, similar to the rollers 9, 10, are arranged on the upper side of the rack 30 for guiding or conveying the paper.

Auf der Auslaßseite des Rack-Oberteils befinden sich Förder- bzw. Führungswalzen 39 und 39a.Conveyor or guide rollers 39 and 39a are located on the outlet side of the rack upper part.

Durch eine nur skizzenhaft dargestellte Verbolzung 36 ist dafür Sorge getragen, daß in Betriebsstellung Oberteil und Unterteil gegeneinander exakt justiert sind.A bolt 36, which is only sketched, ensures that the upper part and lower part are exactly adjusted to one another in the operating position.

In Fig. 4 sind auf einen abschnittweise dargestellten Wellenkern 14 Hutlamellen 50 derart aufgeschoben, daß je zwei mit ihren offenen Seiten 51 gegeneinander gerichtet sind und sozusagen ein Hutlamellenpaar bilden. Die offenen Seiten 51 verlaufen dabei rechtwinklig zur Walzenachse 6.4 hat slats 50 are pushed onto a shaft core shown in sections in such a way that two are each directed with their open sides 51 towards one another and so to speak form a pair of hat slats. The open sides 51 run at right angles to the roller axis 6.

Die Hutlamellen 50 sind in ihrem Umfangsbereich mit einem ersten im wesentlichen zylindrischen Abschnitt 52 versehen, dessen Außenseite 53 die Kontaktfläche zum Fotopapier bildet. Diesem zylindrischen Abschnitt 52 schließt sich ein konischer Wandungsteil 54 an, der zur Walzenachse 6 etwa einen Winkel 55 von 45° einschließt. Der Wandungsteil 54 geht einstückig in eine Lagerhülse 56 über, die über die offene Seite 51 etwas hinaussteht, so daß die Unterkanten der Außenseiten 53 zweier mit ihren offenen Seiten 51 aneinanderliegender Hütchen einen Einfederungsabstand 57 aufweisen. Die Einfederungsbewegung der Kanten der Hutlamellen 50 bei radialem Druck ist durch die pfeile 58 angedeutet.The hat slats 50 are provided in their peripheral region with a first substantially cylindrical section 52, the outer side 53 of which forms the contact surface with the photographic paper. This cylindrical section 52 is followed by a conical wall part 54, which encloses an angle 55 of approximately 45 ° with the roller axis 6. The wall part 54 merges in one piece into a bearing sleeve 56, which protrudes somewhat beyond the open side 51, so that the lower edges of the outer sides 53 of two cones lying against one another with their open sides 51 have a deflection distance 57. The deflection movement of the edges of the hat slats 50 under radial pressure is indicated by the arrows 58.

In Fig. 5 ist zunächst eine andere Anordnung der Hutlamellen zueinander gezeigt. Sie weisen nämlich mit ihren offenen Seiten 51 nicht gegeneinander, sondern in die gleiche Richtung. Allerdings ist bei einer derartigen Anordnung dafür Sorge zu tragen, daß beispielsweise die Hutlamellen des anderen Wellenendes in die entgegengesetzte Richtung weisen.Another arrangement of the hat slats relative to one another is shown in FIG. 5. With their open sides 51 they do not point towards each other, but in the same direction. However, with such an arrangement, care must be taken that, for example, the hat slats of the other shaft end point in the opposite direction.

Weiterhin sind die in Fig. 5 dargestellten Hutlamellen mit im Wandungsteil 54 angeordneten Bälgen 59 versehen.Furthermore, the hat slats shown in FIG. 5 are provided with bellows 59 arranged in the wall part 54.

Claims (8)

1. A conveying system for passing a web- or sheet-shaped photographic layer-bearing carrier along a path through photochemical baths of developing machines, comprising one or several pairs of parallel conveying rollers with a passage gap (11) for the layer-bearing carrier being disposed between each such pair, at least one roller of each pair being driven, and the roller facing the uncoated rear side of the layer-bearing carrier having a variable cross-sectional area, which roller carrying on a shaft core (14) a plurality of radially resilient pressure elements (50) disposed side by side, wherein the pressure elements (50) are designed as elastically resilient, radially yielding mushroom-shaped lamellae (50), whose axis of symmetry is parallel to the axis of the roller, and which have the shape of hemispherical shells or envelopes of cone open on one side, and whose open sides (51) run approximately at right angles to the shaft core (14).
2. A conveying system according to claim 1, wherein the wall portions axially opposite to the open side (51) of the lamellae (50) are fixed to the shaft core (14).
3. A conveying system according to claim 1 or 2, wherein the lamellae (50) are configured in one piece with a bearing bush (56) disposed on the shaft core (14) with a wringing fit, which bush projects over the open side (51) in axial direction.
4. A conveying system according to any of claims 1 to 3, wherein the angle (55) formed by the walls of the cone-shaped lamellae (50) is approximately 45°.
5. A conveying system according to any of claims 1 to 4, wherein the hollow part of the lamellae is of polyethylene.
6. A conveying system according to any of claims 1 to 5, wherein the open sides of an equal number of lamellae mounted on a common shaft face one or the other shaft end, respectively.
7. A conveying system according to any of claims 1 to 6, wherein the open sides (51) of two adjacent lamellae (50) each are situated parallel side by side.
8. A conveying system according to any of the preceding claims, wherein one or several portions of the cross section of the hollow part are designed as an elastically resilient, accordion- shaped annular zone (59).
EP83108405A 1983-02-22 1983-08-26 Transporting device for conveying strip or sheet like photographic layer carriers through chemical baths in developing machines Expired EP0116681B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83108405T ATE34624T1 (en) 1983-02-22 1983-08-26 TRANSPORT DEVICE FOR TRANSPORTATION OF BELTOR SHEET-FORM PHOTOGRAPHIC COATING CARRIERS THROUGH PHOTOCHEMICAL BATHS OF DEVELOPING MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3306139 1983-02-22
DE19833306139 DE3306139A1 (en) 1983-02-22 1983-02-22 TRANSPORT DEVICE FOR CARRYING OUT TAPE OR SHEET-SHAPED PHOTOGRAPHIC CARRIER THROUGH PHOTOCHEMICAL BATHS OF DEVELOPING MACHINES

Publications (2)

Publication Number Publication Date
EP0116681A1 EP0116681A1 (en) 1984-08-29
EP0116681B1 true EP0116681B1 (en) 1988-05-25

Family

ID=6191521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108405A Expired EP0116681B1 (en) 1983-02-22 1983-08-26 Transporting device for conveying strip or sheet like photographic layer carriers through chemical baths in developing machines

Country Status (6)

Country Link
US (1) US4544253A (en)
EP (1) EP0116681B1 (en)
JP (1) JPS59154450A (en)
AT (1) ATE34624T1 (en)
DE (2) DE3306139A1 (en)
DK (1) DK157219C (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626412C2 (en) * 1985-08-06 1994-12-15 Fuji Photo Film Co Ltd Transport device for exposed photographic material
JPS6390652U (en) * 1986-12-02 1988-06-13
US4926215A (en) * 1988-10-12 1990-05-15 Rank Jr Allen H Contact exposure unit
JP2652695B2 (en) * 1989-01-12 1997-09-10 富士写真フイルム株式会社 Photosensitive material processing equipment
JPH0339961A (en) * 1989-04-11 1991-02-20 Fuji Photo Film Co Ltd Device for processing photosensitive material
US5326011A (en) * 1993-01-22 1994-07-05 Printware, Inc. Reduced-skew web drive between rollers of differing coefficients of friction, particularly to transport paper, metal or film in a laser imager
JP2570682Y2 (en) * 1993-02-05 1998-05-06 ノーリツ鋼機株式会社 Squeeze roller in photosensitive material developing machine
EP0669275B1 (en) * 1994-02-24 1999-06-02 Gretag Imaging Ag Loop buffer for tape transporting device
US6007627A (en) * 1997-11-13 1999-12-28 The Proceter & Gamble Company Method and apparatus for processing a discontinuous coating on a substrate
US6164846A (en) * 1998-03-25 2000-12-26 Eastman Kodak Company Apparatus and method for transporting a web
US6074109A (en) * 1998-03-25 2000-06-13 Eastman Kodak Company Apparatus for processing photographic media
JP3954229B2 (en) * 1999-01-28 2007-08-08 富士フイルム株式会社 Heating device
US6701945B1 (en) * 2000-02-28 2004-03-09 Utica Enterprises, Inc. Sheet metal blank washer system
JP2004002003A (en) * 2002-03-25 2004-01-08 Fuji Photo Film Co Ltd Image recording device
DE502004009821D1 (en) * 2004-04-13 2009-09-10 Applied Materials Gmbh & Co Kg Guide arrangement with at least one guide roller for the guidance of belts in belt treatment plants
US20120223117A1 (en) * 2011-03-04 2012-09-06 Kasiske Jr W Charles Web media moving method
US20120223118A1 (en) * 2011-03-04 2012-09-06 Piatt Michael J Web media moving apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1891722A (en) * 1931-09-22 1932-12-20 Bruning Charles Co Inc Sensitized paper developing apparatus
US3078024A (en) * 1960-05-11 1963-02-19 Pako Corp Processing apparatus for processing flexible sheet material requiring chemical treatment
US3345928A (en) * 1965-06-08 1967-10-10 Vivian D Krehbiel Flexible material transport mechanism
GB1316203A (en) * 1971-02-04 1973-05-09 Pentacon Dresden Veb Device for conveying photographic film
US3847260A (en) * 1971-11-29 1974-11-12 A Fowler Conveyer belt roller
GB1393566A (en) * 1972-04-18 1975-05-07 Krehbiel V D Apparatus for transporting photographic film
US3989176A (en) * 1974-04-04 1976-11-02 Hope Henry F Web transporting system
JPS6016913Y2 (en) * 1978-09-19 1985-05-25 大日本スクリ−ン製造株式会社 Film transport device
DE2947204A1 (en) * 1979-11-23 1981-05-27 Huss, Heinrich, 6054 Rodgau Guide rollers for film processing bath - has three stacks of guide rollers with guide wheels
DE3127016A1 (en) * 1981-07-09 1983-01-20 Autopan Heimerdinger & Stäbler GmbH & Co, 7022 Leinfelden -Echterdingen Device for treating sheet-like material

Also Published As

Publication number Publication date
DE3306139A1 (en) 1984-08-30
DK395283A (en) 1984-08-23
ATE34624T1 (en) 1988-06-15
EP0116681A1 (en) 1984-08-29
DK157219B (en) 1989-11-20
DE3376764D1 (en) 1988-06-30
US4544253A (en) 1985-10-01
DK395283D0 (en) 1983-08-30
DK157219C (en) 1990-04-16
JPS59154450A (en) 1984-09-03

Similar Documents

Publication Publication Date Title
EP0116681B1 (en) Transporting device for conveying strip or sheet like photographic layer carriers through chemical baths in developing machines
DE2029044C3 (en) Photographic developing device
DE1954027U (en) FEED DEVICE FOR SHEET-SHAPED MATERIAL.
DE102016210883A1 (en) Apparatus and method for treating substrates using a porous material support roll
DE2848409B1 (en) External cylindrical spreader for tubular goods
DE2935201C2 (en) Device for conveying long light-sensitive material strips
DE2054367A1 (en) Device for rotatable storage for the purpose of unwinding and winding up a roll consisting of a web of material or the like
DE3209262C2 (en) Device for developing sheet or strip-shaped color photographic paper
DE2425190C2 (en) Transport roller pair in a continuous developing device for film material
DE8304906U1 (en) TRANSPORT DEVICE FOR CARRYING OUT TAPE OR SHEET-SHAPED PHOTOGRAPHIC CARRIER THROUGH PHOTOCHEMICAL BATHS OF DEVELOPING MACHINES
DE102014222295A1 (en) Spring roller, transport device, device for treating a good and transport method
DE2603659C3 (en) Apparatus for the wet treatment of strip-shaped photographic support
DE3626412C2 (en) Transport device for exposed photographic material
DE2152526C3 (en) Device for aligning a revolving endless filter belt for filters
DE2710879C2 (en) Device for the treatment of exposed tape or sheet-shaped photographic material
DE2218792B2 (en) DEVICE FOR TRANSPORTING PHOTOGRAPHIC MATERIALS
DE2340429C3 (en) Film transport device
DE2329178A1 (en) MACHINE USING THE DIFFUSION TRANSFER PROCESS FOR TREATMENT OF POSITIVE AND NEGATIVE
CH691889A5 (en) Device and method for handling of returnable bottles.
DE2532828B2 (en) Apparatus for the wet treatment of strip-shaped photographic support
DE1597662C (en) Film transport device
DE2740892A1 (en) Angled roller conveyor track - has friction-driven transfer roller in angle between track sections and on perpendicular axis
AT231274B (en) Conveyor device for sheet and strip-shaped photo material in developing machines
DE1635429C3 (en) Device for unwinding a roll of fabric
DE2419774A1 (en) METHOD AND DEVICE FOR APPLYING A SOLUTION AS A LAYER OR COATING TO A CYLINDRICAL OBJECT

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19850204

17Q First examination report despatched

Effective date: 19860521

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

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

Ref country code: NL

Effective date: 19880525

Ref country code: BE

Effective date: 19880525

REF Corresponds to:

Ref document number: 34624

Country of ref document: AT

Date of ref document: 19880615

Kind code of ref document: T

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

Ref country code: SE

Effective date: 19880531

REF Corresponds to:

Ref document number: 3376764

Country of ref document: DE

Date of ref document: 19880630

ITF It: translation for a ep patent filed

Owner name: UFFICIO BREVETTI RICCARDI & C.

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

Ref country code: AT

Effective date: 19880826

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

Ref country code: LU

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

Effective date: 19880831

Ref country code: LI

Effective date: 19880831

Ref country code: CH

Effective date: 19880831

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930706

Year of fee payment: 11

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

Ref country code: GB

Payment date: 19930805

Year of fee payment: 11

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

Ref country code: FR

Payment date: 19930816

Year of fee payment: 11

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

Ref country code: GB

Effective date: 19940826

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

Effective date: 19940826

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

Ref country code: FR

Effective date: 19950428

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

Ref country code: DE

Effective date: 19950503

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST