EP0250772B1 - Device for transporting folded products - Google Patents

Device for transporting folded products Download PDF

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Publication number
EP0250772B1
EP0250772B1 EP87106361A EP87106361A EP0250772B1 EP 0250772 B1 EP0250772 B1 EP 0250772B1 EP 87106361 A EP87106361 A EP 87106361A EP 87106361 A EP87106361 A EP 87106361A EP 0250772 B1 EP0250772 B1 EP 0250772B1
Authority
EP
European Patent Office
Prior art keywords
segments
transporting arrangement
arrangement according
continuous
folded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87106361A
Other languages
German (de)
French (fr)
Other versions
EP0250772A2 (en
EP0250772A3 (en
Inventor
Ingo Köbler
Godber Petersen
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT87106361T priority Critical patent/ATE65063T1/en
Publication of EP0250772A2 publication Critical patent/EP0250772A2/en
Publication of EP0250772A3 publication Critical patent/EP0250772A3/en
Application granted granted Critical
Publication of EP0250772B1 publication Critical patent/EP0250772B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/112—Section geometry
    • B65H2701/1123—Folded article or web
    • B65H2701/11231—Fan-folded material or zig-zag or leporello

Definitions

  • the invention relates to a transport device for folded products which are guided on means arranged beneath their supporting and guiding devices (EP-A-0 169 490).
  • the previous transport systems for printed or folded products or sheets served essentially purely for transport purposes, for example for transferring folded copies from a folder to a storage system in the form of a stack or a storage roll.
  • the storage system is completely separate from the transport system.
  • additional devices must be used with the aid of which folded products can be opened.
  • a so-called overfold was often required, which is known to lead to higher paper consumption.
  • the known transport and storage systems therefore take up a lot of space. They are voluminous and are not suitable for more sophisticated automation processes in further processing.
  • a sorting and depositing device for sheets is also known from DE-A-2 140 773, in which zigzag segments are moved onto carrying and guiding devices, sheets being insertable when pulled apart along a curved path.
  • folded products are not picked up and transported in the manner defined at the beginning.
  • This object is achieved by applying the features of the characterizing part of claim 1. Further training results from the subclaims.
  • Suitable support and guide devices for the folded copies and sheets to be conveyed are preferably segments guided laterally on guide rails in the form of elastic sheets 1 which are connected to one another in zigzag fashion, for example welded, at the top and bottom.
  • Such zigzag or. accordion-like segments of sheet metal 1 can thus be pushed and pulled apart or pulled along the guide rails, so that compact storage of folded copies in the pushed-together state and mixing and inserting operations in the pulled-apart state are possible.
  • the fold copies to be processed are approximately roof-shaped on two interconnected segments 1, so that when the segments 1 are pulled apart, the fold copies lying on or in them are opened because they rest with their fold back or are arranged in the manner between two segments that an opening also occurs when the same is spread.
  • a large number of design options for such sheets or segments 1 are described and illustrated in detail in the parallel application PB 3382.
  • Fig. 1 shows the zigzag or accordion-like interconnected segments 1 in a conveyor and storage device 2.
  • the conveyor and storage device 2 is in the direction of the arrow 3, for example displaceable to an unspecified memory, the segments 1 being spread along the illustrated conveying path in FIG. 1 so that they can accommodate folded products.
  • the conveyor device consists of an endless circulating belt 10 which is guided over deflection rollers 4, 5, 6, 7, 8 and 9.
  • deflection rollers 4, 5, 6, 7, 8 and 9 In order to change the length of the conveying path, for example to the left, to the extent of the filling, not specified, of the memory, at least one of the rollers, in FIG. 1 it is roller 4, can be displaced. Simultaneously with the roller 4, the additional roller 5 is also moved as a strip length compensation roller.
  • several such belts can be arranged next to one another in accordance with the width of the segments 1 or the conveyor and storage device 2, or the width of the belts 10 can be increased accordingly.
  • rollers 11 which can preferably be pivoted in between the rollers 4 and 9 as support rollers, since for the displacement of the segments 1 or the conveyor device 2 these are preferably raised slightly and thus the weight of the belt 10 along the movement path is loaded.
  • This lifting of the conveyor 2 takes place when it runs in the direction of arrow 3 onto the roller 9 in the area 13.
  • the segments are slightly lifted off from the rails 14 serving as lateral guides, so that the friction does not become too great, especially at higher transport speeds in the area 15 .
  • storage i.e. H. If the segments 1 are to be pushed together, the conveying and storage device 2 in the area 16 runs down from the roller 4 again, so that the segments 1 are again placed on the rails 14, after which the segments are pushed together to form a storage area 17.
  • the axes of the rollers 4 and 5 can be firmly connected to one another and can be moved in the direction of the arrow 18 in accordance with the setting speed when storing.
  • the remaining rollers 6 to 9 remain stationary.
  • the rollers 4, 5 are moved in the direction of arrow 20.
  • the memory in the region 17 is removed, that is to say the segments 1 are gradually pulled apart, these opening at the top.
  • the segments 1 are slightly raised again in the region 16 and in this state are transported into the region 15 in the direction of the arrow 19.
  • the rollers 11 are gradually pivoted away.
  • Fig. 2 shows the conveyor device according to the invention for a cyclical transport, as z. B. is advantageous for the transfer or inclusion of folded copies at a precisely defined location of the same.
  • the construction of the conveying device corresponds accordingly to FIG. 1, wherein at least one screw 22 is additionally used for the cycle-like reception and continuation.
  • two screws 22 above and below are used in order to pull the conveyor and storage system 2 apart in the direction of the arrow 21.
  • each of the screws 22 has an increasing gradient in the direction of the arrow 21, the end dimension, ie the largest dimension, should correspond to the distance from the drivers 24 fastened on a toothed belt 23. If the memory shown in FIG.
  • the conveyor and storage system 2 is placed on the belts 10 by the toothed belt 23 and carried on through them. Since here the length between the moving roller 9 and the stationary roller 4 is getting longer, support rollers 11 should be switched on again gradually for support in order to ensure a safe lifting off the rails 14.
  • FIG. 2 furthermore shows how folded copies can be inserted from above when false copies occur.
  • the copy gap is continued at a reduced speed to a sensor 30 and the number of false copies is determined with the aid of the sensor 29.
  • the transport is then stopped and the required folding copies 31 are removed with the aid of a gripping device 32 from a storage store 33 arranged above it, which can be constructed in the same way as the lower conveyor and storage system shows.
  • the specimens 31 can fall on top of or between the underlying segments 1.
  • corresponding buffer zones can be formed so that the system can continue to operate at undiminished speed.
  • FIG. 3 to 6 show a possibility according to the invention for the transfer of folded copies 36 and 37 or their mixture or an interlacing.
  • the cyclical transport in the superimposed conveyor and storage systems 2, 2 ⁇ to stores 34 and 35 shown in Fig. 3 thus takes place with similarly constructed devices, the lower system being provided with reference numerals that have an apostrophe to differentiate the individual parts.
  • the two conveyor and storage systems 2, 2 ⁇ are thus cycled over each other, so that the upper system 2 plunges into the open folders 36, which are in segments 1, and under their folded backs attached to these tongues 38 and 39, which open when pulled apart will.
  • FIG. 6 shows how the upper conveyor system 2 is deflected by appropriately shaped rails 14, so that the folding products 37, as shown in FIG. 4, are released downward and into the opened folding products 36 initially up to the tongues 38 ⁇ , 39 ⁇ can slide. Then, as shown in Fig. 5, the lower conveyor system 2 ⁇ corresponding to Fig. 6 is also deflected so that the folded products 37 can slide completely into the open folded products 36. Subsequently, the deflection of the lower conveyor systems 2 ⁇ is reversed again and the transport of the folding products 36 is continued with the folding products 37 taken over.
  • Fig. 7 shows a conveyor and storage system in endless form, with which it is possible to work at different points with different processing speeds.
  • the conveyor and storage system 2 has storage areas 40 and 41 which are laid in loops and which consist of straight conveyor sections 42 and curved conveyors 43. In area 44 z. B. from a printing press folding or printed copies are fed and transported in the direction of arrow 45.
  • the segments 1 pulled apart during transport with the already specified conveyor and storage systems 2 and 2 ⁇ move together in the storage area 40 because the processing speed in the area 46 is lower than the feeding speed in the area 44.
  • Empty storage and storage systems 2 are in the storage 41 moved together. They therefore act as a buffer since the removal in the area 47 is greater than the supply in the area 48.
  • the storage area 49 contains folded products which are supplied in the area 46.
  • the funding in the direction of arrows 50 and 45 is the same here.
  • the conveyor and storage systems are guided one above the other for transfer.
  • the storage area 49 also works as an endless conveyor and storage system.
  • the filled system is removed from area 51 and emptied in area 46 and returned to area 52.
  • the system from memory area 40, 3 is loaded with folded products 36 and receives the folded products 37 in area 46.
  • the unloading takes place, so that, as already described, the emptied system can be fed to area 48.
  • FIG. 8 schematically shows an embodiment of the memory areas 40, 41 and 49 according to FIG. 7 in a side view.
  • Each of the superimposed conveyor and storage systems 2 in turn comprises rollers 4 to 9, belts 10 and toothed belts 23, the end position being indicated by the positions 8 ⁇ , 9 ⁇ and 23 ⁇ and at the ends for the curved transport a curved conveyor 43 connects.
  • FIGS. 9 to 11 An advantageous construction of a curved conveyor 43 is shown in FIGS. 9 to 11.
  • a disk 55 rotating in the direction of arrow 64 in FIG. 9 around the center 54 carries rod-shaped drivers 56 which are mounted in the receiving ring 57 and are carried by guides 58.
  • FIG. 10 shows a section along the line XX of FIG. 9 and reveals that the drivers 56 are pivotable about the pivot point 59 in the receiving ring 57 and can slide up and down in the guides 58. This movement is taken up by rollers 60, which can rotate at the ends of each of the drivers 56, from a circular cam track 61.
  • FIG. 11 shows in a section along the lines XI-XI of FIG. 10 that each driver 56 has a funnel-shaped receptacle 62 in the area of the conveyor and storage system 2. According to FIG. 9, the conveying and storage system 2 is deflected by the curved conveyor by 180 °.
  • the conveyor and storage system 2 follows the correspondingly shaped guide rails 14, wherein it is pulled further apart in the outer curve than in the inner, ie narrower curve.
  • the peripheral speed of the drivers 58 on the outer edge of the disk 55 corresponds to the linear conveying speed in the direction of the arrow 63.
  • the disk 55 rotates in the direction of the arrow 64 the driver 56 in the region 65 in the lower position of the cam roller 60 ⁇ of FIG. 10. They run under the conveyor and storage system 2 in order to raise it in the region 66, due to the position 60 shown. After a 180 ° rotation this position in the area 67 is reversed again, that is to say the conveyor and storage system 2 is again lowered onto the rails 14.
  • the roller 60 then remains in the lower position 60 ⁇ until it is received in the region 66.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Advancing Webs (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Air Bags (AREA)

Abstract

To move a plurality of interconnected segments which a zig-zag, accordeon or bellows pleat arrangement on or between which sheet elements such as projecting elements from a folded sheet are located along a transport path and to permit, selectively, expansion or compression of the segments for handling of sheet elements, and compact storage, an endless belt, preferably a gear belt sprocket chain or the like, is provided engageable with the segments. Preferably, lifting rollers are provided, selectively engageable with the belt to slightly raise the segments from transport rails, and decrease friction of the segments with respect to the rails. The segments can be stored, when empty or loaded, when collapsed against each other, and spread apart for sheet material handling. A plurality of such system can be located or adjacent each other, so that, when the segments are spread apart, suitable mixing or insertion steps can be carried out. To permit a space-saving arrangement, the transport path can be sinuous, with 180 DEG rotating elements, having carrying rods engaging the segments coupled to a disk, turning the segments about an arcuate path defined by the travel of the carrying rods on the disk. The segments can be raised, again, by placing a cam track adjacent the disk, on which the carrying rods can run off by means of cam follower rollers.

Description

Die Erfindung betrifft eine Transportvorrichtung für Falzprodukte, die an unter deren Falzrücken greifenden Trag- und Führungseinrichtungen angeordneten Mitteln geführt sind (EP-A-0 169 490).The invention relates to a transport device for folded products which are guided on means arranged beneath their supporting and guiding devices (EP-A-0 169 490).

Die bisherigen Transportsysteme für Druck- bzw. gefalzte Produkte oder Bögen dienten im wesentlichen reinen Transportzwecken, beispielsweise zur Überführung von Falzexemplaren von einem Falzapparat zu einem Speichersystem in Form eines Stapels oder einer Speicherrolle. Hierbei ist das Speichersystem völlig vom Transportsystem getrennt. Für die Weiterverarbeitung von gespeicherten Falzexemplaren, beispielsweise für Mischvorgänge oder für das Einlegen von Beilagen in Zeitungen müssen Zusatzgeräte eingesetzt werden, mit deren Hilfe gefalzte Produkte zu öffnen sind. Für den Öffnungsvorgang wiederum bedurfte es häufig eines sogenannten Überfalzes der bekanntlich zu einem höheren Papierverbrauch führt. Die bekannten Transport und Speichersysteme benötigen deshalb viel Platz. Sie sind voluminös und eignen sich nicht für anspruchsvollere Automatisierungsvorgänge in der Weiterverarbeitung.The previous transport systems for printed or folded products or sheets served essentially purely for transport purposes, for example for transferring folded copies from a folder to a storage system in the form of a stack or a storage roll. The storage system is completely separate from the transport system. For the further processing of stored folded copies, for example for mixing processes or for inserting supplements in newspapers, additional devices must be used with the aid of which folded products can be opened. For the opening process, in turn, a so-called overfold was often required, which is known to lead to higher paper consumption. The known transport and storage systems therefore take up a lot of space. They are voluminous and are not suitable for more sophisticated automation processes in further processing.

Aus der DE-A-2 140 773 ist auch bereits eine Sortier- und Ablagevorrichtung für Blätter bekannt, in der zick-zackförmige Segmente auf Trag- und Führungseinrichtungen verschoben werden, wobei beim Auseinanderziehen entlang einer gekrümmten Bahn Blätter einlegbar sind. Falzprodukte werden jedoch nicht in der eingangs definierten Weise aufgenommen und transportiert.A sorting and depositing device for sheets is also known from DE-A-2 140 773, in which zigzag segments are moved onto carrying and guiding devices, sheets being insertable when pulled apart along a curved path. However, folded products are not picked up and transported in the manner defined at the beginning.

Aufgabe der vorliegenden Erfindug ist es deshalb, eine Transportvorrichtung zu schaffen, die zum Fördern und zum Speichern, insbesondere von Falzprodukten geeignet ist und die ein Mischen von Falzexemplaren sowie das Einlegen von Beilagen ermöglicht ohne daß das System verlassen werden muß. Diese Aufgabe wird durch Anwendung der Merkmale des kennzeichnenden Teils des Anspruchs 1 gelöst. Weiterbildungen ergeben sich aus den Unteransprüchen.It is therefore an object of the present invention to provide a transport device which is suitable for conveying and storing, in particular of folded products, and which enables the mixing of folded copies and the insertion of inserts without having to leave the system. This object is achieved by applying the features of the characterizing part of claim 1. Further training results from the subclaims.

Ausführungsbeispiele sind im folgenden in Verbindung mit den Zeichnungen beschrieben. In diesen zeigt

Fig. 1
eine Fördereinrichtung mit Speichermöglichkeiten,
Fig. 2
eine Fördereinrichtung mit Speicherung zur taktförmigen Führung von Falzexemplaren
Fig. 3 bis 6
Einrichtungen zur Übergabe und Mischen von Falzexemplaren,
Fig. 7
eine Endlosfördereinrichtung mit Pufferungsmöglichkeiten für unterschiedliche Verarbeitungsgeschwindigkeiten an verschiedenen Stellen;
Fig. 8
eine Seitenansicht eines Speichers mit linearen und gekrümmten Abschnitten;
Fig. 9
einen Kurvenförderer;
Fig. 10
einen Schnitt entlang der Linie X - X der Fig. 9 und
Fig. 11
einen Schnitt entlang der Linie XI - XI der Fig. 10.
Exemplary embodiments are described below in conjunction with the drawings. In these shows
Fig. 1
a conveyor with storage facilities,
Fig. 2
a conveyor with storage for the tactical management of folded copies
3 to 6
Facilities for the transfer and mixing of folded copies,
Fig. 7
an endless conveyor with buffering options for different processing speeds at different locations;
Fig. 8
a side view of a memory with linear and curved sections;
Fig. 9
a curve conveyor;
Fig. 10
a section along the line X - X of Fig. 9 and
Fig. 11
a section along the line XI - XI of FIG. 10th

Als Trag- und Führungseinrichtungen für die zu fördernden Falzexemplare und Bögen eignen sich vorzugsweise seitlich an Führungsschienen geführte Segmente in Form von elastischen Blechen 1, die oben und unten zick-zackförmig miteinander verbunden, beispielsweise verschweißt sind. Derartige zick-zack-bzw. ziehharmonikaartig miteinander verbundene Segmente aus Blechen 1 können somit entlang der Führungsschienen auseinander-und zusammengeschoben bzw. -gezogen werden, so daß eine kompakte Speicherung von Falzexemplaren im zusammengeschobenen Zustand und Misch- und Einlegevorgänge im auseinandergezogen Zustand möglich sind. Dabei liegen beispielsweise die zu verarbeitenden Falzexemplare etwa dachförmig auf zwei miteinander verbundenen Segmenten 1, so daß beim Auseinanderziehen der Segmente 1, die auf diesen oder in diesen liegenden Falzexemplare geöffnet werden, da sie mit ihrem Falzrücken aufliegen oder in der Weise zwischen zwei Segmenten angeordnet sind, daß beim Spreizen derselben ebenfalls eine Öffnung erfolgt. Eine Vielzahl von Ausgestaltungsmöglichkeiten derartiger Bleche bzw. Segmente 1 sind in der gleichaltrigen parallelen Anmeldung PB 3382 ausführlich beschrieben und dargestellt.Suitable support and guide devices for the folded copies and sheets to be conveyed are preferably segments guided laterally on guide rails in the form of elastic sheets 1 which are connected to one another in zigzag fashion, for example welded, at the top and bottom. Such zigzag or. accordion-like segments of sheet metal 1 can thus be pushed and pulled apart or pulled along the guide rails, so that compact storage of folded copies in the pushed-together state and mixing and inserting operations in the pulled-apart state are possible. In this case, for example, the fold copies to be processed are approximately roof-shaped on two interconnected segments 1, so that when the segments 1 are pulled apart, the fold copies lying on or in them are opened because they rest with their fold back or are arranged in the manner between two segments that an opening also occurs when the same is spread. A large number of design options for such sheets or segments 1 are described and illustrated in detail in the parallel application PB 3382.

Fig. 1 zeigt die zick-zack- oder zieharmonikaartigen miteinander verbundenen Segmente 1 in einer Förder- und Speichereinrichtung 2. Die Förder- und Speichereinrichtung 2 ist in Richtung des Pfeiles 3, beispielsweise zu einem nicht näher bezeichneten Speicher verschiebbar, wobei entlang der dargestellten Förderstrecke in Fig. 1 die Segmente 1 gespreizt sind, so daß sie Falzprodukte aufnehmen können.Fig. 1 shows the zigzag or accordion-like interconnected segments 1 in a conveyor and storage device 2. The conveyor and storage device 2 is in the direction of the arrow 3, for example displaceable to an unspecified memory, the segments 1 being spread along the illustrated conveying path in FIG. 1 so that they can accommodate folded products.

Die erfindungsgemäße Fördereinrichtung besteht bei der Ausführungsform gemäß Fig. 1 aus einem endlosen umlaufenden Band 10, das über Umlenkrollen 4, 5, 6, 7, 8 und 9 geführt ist. Um die Länge der Förderstrecke zu verändern, beispielsweise nach links, im Maße des sich füllenden nicht näher bezeichneten Speichers ist mindestens eine der Rollen, in Fig. 1 ist es die Rolle 4, verschiebbar. Gleichzeitig mit der Rolle 4 wird die weitere Rolle 5, als Bandlängenausgleichsrolle mit verschoben. Selbstverständlich können entsprechend der Breite der Segmente 1 bzw. der Förder- und Speichereinrichtung 2 mehrere derartige Bänder nebeneinander angeordnet werden oder die Breite der Bänder 10 entsprechend vergrößert werden. Es ist vorteilhaft, zwischen den Rollen 4 und 9 vorzugsweise einschwenkbare Rollen 11 als Stützrollen zu verwenden, da für die Verschiebung der Segmente 1 bzw. der Fördereinrichtung 2 diese vorzugsweise geringfügig angehoben werden und somit durch deren Gewicht das Band 10 entlang der Bewegungsstrecke belastet wird. Dieses Anheben der Fördereinrichtung 2 erfolgt beim Auflaufen in Richtung des Pfeiles 3 auf die Walze 9 im Bereich 13. Dadurch werden die Segmente geringfügig von den als Seitenführung dienenden Schienen 14 abgehoben, so daß die Reibung insbesondere bei höheren Transportgeschwindigkeiten im Bereich 15 nicht zu groß wird. Falls eine Speicherung, d. h. ein Zusammenschieben der Segmente 1 erfolgen soll, läuft die Förder- und Speichereinrichtung 2 im Bereich 16 von der Walze 4 wieder herunter, sodaß die Segmente 1 wieder auf den Schienen 14 abgesetzt werden, wonach im Bereich 17 die Segmente zu einem Speicher zusammengeschoben werden.In the embodiment according to FIG. 1, the conveyor device according to the invention consists of an endless circulating belt 10 which is guided over deflection rollers 4, 5, 6, 7, 8 and 9. In order to change the length of the conveying path, for example to the left, to the extent of the filling, not specified, of the memory, at least one of the rollers, in FIG. 1 it is roller 4, can be displaced. Simultaneously with the roller 4, the additional roller 5 is also moved as a strip length compensation roller. Of course, several such belts can be arranged next to one another in accordance with the width of the segments 1 or the conveyor and storage device 2, or the width of the belts 10 can be increased accordingly. It is advantageous to use rollers 11 which can preferably be pivoted in between the rollers 4 and 9 as support rollers, since for the displacement of the segments 1 or the conveyor device 2 these are preferably raised slightly and thus the weight of the belt 10 along the movement path is loaded. This lifting of the conveyor 2 takes place when it runs in the direction of arrow 3 onto the roller 9 in the area 13. As a result, the segments are slightly lifted off from the rails 14 serving as lateral guides, so that the friction does not become too great, especially at higher transport speeds in the area 15 . If storage, i.e. H. If the segments 1 are to be pushed together, the conveying and storage device 2 in the area 16 runs down from the roller 4 again, so that the segments 1 are again placed on the rails 14, after which the segments are pushed together to form a storage area 17.

Die Achsen der Walzen 4 und 5 können miteinander fest verbunden sein und entsprechend der Absetzgeschwindigkeit beim Speichern in Richtung des Pfeiles 18 bewegt werden. Die übrigen Walzen 6 bis 9 bleiben ortsfest. Bei Umkehrung der Förderung in Richtung des Pfeiles 19 werden die Walzen 4, 5 in Richtung des Pfeiles 20 bewegt. Dadurch wird der Speicher im Bereich 17 abgetragen, d. h. nach und nach erfolgt ein Auseinanderziehen der Segmente 1, wobei diese sich oben öffnen. Im Bereich 16 werden in diesem Falle die Segmente 1 wieder leicht angehoben und in diesem Zustand in den Bereich 15 in Richtung des Pfeiles 19 transportiert. Entsprechend dem Vorschub werden nach und nach dabei die Rollen 11 weggeschwenkt.The axes of the rollers 4 and 5 can be firmly connected to one another and can be moved in the direction of the arrow 18 in accordance with the setting speed when storing. The remaining rollers 6 to 9 remain stationary. When the conveyance is reversed in the direction of arrow 19, the rollers 4, 5 are moved in the direction of arrow 20. As a result, the memory in the region 17 is removed, that is to say the segments 1 are gradually pulled apart, these opening at the top. In this case, the segments 1 are slightly raised again in the region 16 and in this state are transported into the region 15 in the direction of the arrow 19. In accordance with the feed, the rollers 11 are gradually pivoted away.

Fig. 2 zeigt die erfindungsgemäße Fördereinrichtung für einen taktförmigen Transport, wie er z. B. für die Übergabe oder Aufnahme von Falzexemplaren bei einer genau definierten Lage desselben vorteilhaft ist. Der Aufbau der Fördereinrichtung entspricht demgemäß Fig. 1, wobei zur taktförmigen Aufnahme und Weiterführung zusätzlich mindestens eine Schnecke 22 verwendet wird. Bei der Ausführungsform gemäß Fig. 2 werden zwei Schnecken 22 oben und unten zwecks exakter Auseinanderziehung des Förder-und Speichersystems 2 in Richtung des Pfeiles 21 verwendet. In vorteilhafter Weise weist dabei jede der Schnecken 22 eine in Richtung des Pfeiles 21 zunehmende Steigung auf, deren End-, d. h. größtes Maß dem Abstand von auf einem Zahnriemen 23 befestigten Mitnehmer 24 entsprechen sollte. Wird der in Fig. 2 links dargestellte Speicher aus den zusammengeschobenen Segmenten 1 in Richtung des Pfeiles 21 abgetragen, d. h. auseinandergezogen, so tauchen die Schnecken 22 in die zusammengeschobenen Segmente 1 ein und ziehen diese beim Drehen der Schnecken 22 auseinander, so daß eine taktmäßige Zuführung zu den Mitnehmern 24 am Endloszahnriemen 23 erfolgt. Dabei wird das Förder- und Speichersystem 2 im Bereich 26 beim Auflaufen auf den Endloszahnriemen 23 wiederum geringfügig angehoben bzw. von den Schienen 14 abgehoben. Die Schnecken 22 sowie die Zahnriemen 23 und die Walzen 8, 9 bewegen sich dort als zusammenhängendes System in Richtung des Pfeiles 27 mit der Abtraggeschwindigkeit des Speichers.Fig. 2 shows the conveyor device according to the invention for a cyclical transport, as z. B. is advantageous for the transfer or inclusion of folded copies at a precisely defined location of the same. The construction of the conveying device corresponds accordingly to FIG. 1, wherein at least one screw 22 is additionally used for the cycle-like reception and continuation. In the embodiment according to FIG. 2, two screws 22 above and below are used in order to pull the conveyor and storage system 2 apart in the direction of the arrow 21. Advantageously, each of the screws 22 has an increasing gradient in the direction of the arrow 21, the end dimension, ie the largest dimension, should correspond to the distance from the drivers 24 fastened on a toothed belt 23. If the memory shown in FIG. 2 on the left is removed from the pushed together segments 1 in the direction of arrow 21, ie pulled apart, the screws 22 dip into the pushed together segments 1 and pull them apart when the screws 22 are rotated, so that a cyclical feed to the drivers 24 on the endless toothed belt 23. The conveyor and storage system 2 in the region 26 is in turn slightly raised when it hits the endless toothed belt 23 or lifted off the rails 14. The screws 22 as well as the toothed belts 23 and the rollers 8, 9 move there as a coherent system in the direction of arrow 27 at the rate of removal of the accumulator.

Soll außerhalb des taktförmigen Transportbereiches 28 noch weiter transportiert werden, so wird das Förder- und Speichersystem 2 von dem Zahnriemen 23 auf die Bänder 10 abgesetzt und durch diese weitergeführt. Da hierbei die Länge zwischen der bewegten Walze 9 und der ortsfesten Walze 4 immer größer wird, sollten wiederum zur Unterstützung nach und nach Stützrollen 11 zugeschaltet werden, um ein sicheres Abheben von den Schienen 14 zu gewährleisten.If further transport is to take place outside of the cycle-shaped transport area 28, the conveyor and storage system 2 is placed on the belts 10 by the toothed belt 23 and carried on through them. Since here the length between the moving roller 9 and the stationary roller 4 is getting longer, support rollers 11 should be switched on again gradually for support in order to ensure a safe lifting off the rails 14.

Fig. 2 zeigt weiterhin, wie beim Auftreten von Fehlexemplaren von oben Falzexemplare eingefügt werden können. Werden z. B. durch einen Sensor 29 Fehlexemplare gemeldet, so wird die Exemplarlücke mit verminderter Geschwindigkeit bis zu einem Sensor 30 weitergefahren und dabei die Anzahl der Fehlexemplare mit Hilfe des Sensors 29 ermittelt. Anschließend wird der Transport gestoppt und die benötigten Falzexemplare 31 mit Hilfe einer Greifvorrichtung 32 von einem darüber angeordneten Vorratsspeicher 33 entnommen, der gleichartig aufgebaut sein kann, wie das untere Förder- und Speichersystem zeigen. Die Exemplare 31 können von oben auf oder zwischen die darunterliegenden Segmente 1 fallen. An einer anderen Stelle, beispielsweise in Richtung des Pfeiles 21 können entsprechende Pufferzonen gebildet werden, so daß mit unverminderter Geschwindigkeit das System weiterarbeiten kann.FIG. 2 furthermore shows how folded copies can be inserted from above when false copies occur. Are z. B. reported by a sensor 29 false copies, the copy gap is continued at a reduced speed to a sensor 30 and the number of false copies is determined with the aid of the sensor 29. The transport is then stopped and the required folding copies 31 are removed with the aid of a gripping device 32 from a storage store 33 arranged above it, which can be constructed in the same way as the lower conveyor and storage system shows. The specimens 31 can fall on top of or between the underlying segments 1. At another point, for example in the direction of arrow 21, corresponding buffer zones can be formed so that the system can continue to operate at undiminished speed.

Die Fig. 3 bis 6 zeigen eine erfindungsgemäße Möglichkeit der Übergabe von Falzexemplaren 36 und 37 bzw. deren Mischung oder ein Ineinanderlegen. Der taktförmige Transport bei den in Fig. 3 dargstellten übereinanderliegenden Förder- und Speichersystemen 2, 2ʹ zu Speichern 34 und 35 erfolgt also mit gleichartig aufgebauten Einrichtungen, wobei zur Unterscheidung der einzelnen Teile jeweils das untere System mit Bezugszeichen versehen ist, die einen Apostroph aufweisen. Die beiden Förder- und Speichersysteme 2, 2ʹ werden also taktmäßig übereinandergefahren, so daß das obere System 2 in die geöffneten Falzexemplare 36 taucht, die in Segmenten 1 liegen, und unter deren Falzrücken an diesen befestigte Zungen 38 und 39 greifen, die beim Auseinanderziehen geöffnet werden.3 to 6 show a possibility according to the invention for the transfer of folded copies 36 and 37 or their mixture or an interlacing. The cyclical transport in the superimposed conveyor and storage systems 2, 2ʹ to stores 34 and 35 shown in Fig. 3 thus takes place with similarly constructed devices, the lower system being provided with reference numerals that have an apostrophe to differentiate the individual parts. The two conveyor and storage systems 2, 2ʹ are thus cycled over each other, so that the upper system 2 plunges into the open folders 36, which are in segments 1, and under their folded backs attached to these tongues 38 and 39, which open when pulled apart will.

Die Fig. 4 bis 6 zeigen das stufenweise Übergeben der Falzexemplare. Die Draufsicht gemäß Fig. 6 läßt erkennen, wie das obere Fördersystem 2 durch entsprechend geformte Schienen 14 ausgelenkt wird, so daß die Falzprodukte 37, wie in Fig. 4 gezeigt, nach unten freigegeben werden und in die geöffneten Falzprodukte 36 zunächst bis zu den Zungen 38ʹ, 39ʹ gleiten können. Dann wird, wie in Fig. 5 dargstellt, das untere Fördersystem 2ʹ entsprechend Fig. 6 ebenfalls ausgelenkt, so daß die Falzprodukte 37 vollends in die geöffneten Falzprodukte 36 gleiten können. Anschließend wird die Auslenkung der unteren Fördersysteme 2ʹ wieder rückgängig gemacht und der Transport der Falzprodukte 36 mit den übernommenen Falzprodukten 37 weitergeführt.4 to 6 show the gradual transfer of the folded copies. 6 shows how the upper conveyor system 2 is deflected by appropriately shaped rails 14, so that the folding products 37, as shown in FIG. 4, are released downward and into the opened folding products 36 initially up to the tongues 38ʹ, 39ʹ can slide. Then, as shown in Fig. 5, the lower conveyor system 2ʹ corresponding to Fig. 6 is also deflected so that the folded products 37 can slide completely into the open folded products 36. Subsequently, the deflection of the lower conveyor systems 2ʹ is reversed again and the transport of the folding products 36 is continued with the folding products 37 taken over.

Fig. 7 zeigt ein Förder- und Speichersystem in Endlosform, mit dem mit unterschiedlicher Weiterverarbeitungsgeschwindigkeit an verschiedenen Stellen gearbeitet werden kann. Das Förder- und Speichersystem 2 weist Speicherbereiche 40 und 41 auf, die in Schlaufen verlegt sind und die aus geraden Förderstrecken 42 und Kurvenförderern 43 bestehen. Im Bereich 44 können z. B. aus einer Druckmaschine Falz- oder Druckexemplare zugeführt werden und in Richtung des Pfeiles 45 transportiert werden. Die beim Transport mit den bereits vorgeschriebenen Förder- und Speichersystemen 2 bzw. 2ʹ auseinandergezogenen Segmente 1 schieben sich im Speicherbereich 40 zusammen, weil die Verarbeitungsgeschwindigkeit im Bereich 46 geringer ist als die Zuführgeschwindigkeit im Bereich 44. Im Speicher 41 sind leere Förder- und Speichersysteme 2 zusammengefahren. Sie wirken somit als Puffer, da die Entnahme im Bereich 47 größer ist als die Zufuhr im Bereich 48. Der Speicherbereich 49 enthält Falzprodukte, die im Bereich 46 zugeführt werden. Die Förderung in Richtung der Pfeile 50 und 45 ist hier gleich. Die Förder-und Speichersysteme werden, wie bereits beschrieben, zur Übergabe übereinander geführt. Der Speicherbereich 49 arbeitet auch als endloses Förder- und Speichersystem. Das gefüllte System wird dem Bereich 51 entnommen und im Bereich 46 entleert und dem Bereich 52 wieder zugeführt. Das System aus dem Speicherbereich 40, beispielsweise entsprechend der Fig. 3 wird mit Falzprodukten 36 beladen und erhält im Bereich 46 die Falzprodukte 37. Im Bereich 53 erfolgt die Entladung, so daß, wie bereits beschrieben, das entleerte System dem Bereich 48 zuführbar ist.Fig. 7 shows a conveyor and storage system in endless form, with which it is possible to work at different points with different processing speeds. The conveyor and storage system 2 has storage areas 40 and 41 which are laid in loops and which consist of straight conveyor sections 42 and curved conveyors 43. In area 44 z. B. from a printing press folding or printed copies are fed and transported in the direction of arrow 45. The segments 1 pulled apart during transport with the already specified conveyor and storage systems 2 and 2ʹ move together in the storage area 40 because the processing speed in the area 46 is lower than the feeding speed in the area 44. Empty storage and storage systems 2 are in the storage 41 moved together. They therefore act as a buffer since the removal in the area 47 is greater than the supply in the area 48. The storage area 49 contains folded products which are supplied in the area 46. The funding in the direction of arrows 50 and 45 is the same here. As already described, the conveyor and storage systems are guided one above the other for transfer. The storage area 49 also works as an endless conveyor and storage system. The filled system is removed from area 51 and emptied in area 46 and returned to area 52. The system from memory area 40, 3 is loaded with folded products 36 and receives the folded products 37 in area 46. In area 53 the unloading takes place, so that, as already described, the emptied system can be fed to area 48.

Fig. 8 zeigt eine Ausführungsform der Speicherbereiche 40, 41 und 49 gemäß Fig. 7 schematisch in Seitenansicht. Jedes der übereinander liegenden Förder- und Speichersysteme 2 umfaßt wiederum Walzen 4 bis 9, Bänder 10 und Zahnriemen 23, wobei die Endlage jeweils durch die Positionen 8ʹ, 9ʹ und 23ʹ angedeutet ist und an den Enden für den bogenförmigen Transport ein Kurvenförderer 43 anschließt.FIG. 8 schematically shows an embodiment of the memory areas 40, 41 and 49 according to FIG. 7 in a side view. Each of the superimposed conveyor and storage systems 2 in turn comprises rollers 4 to 9, belts 10 and toothed belts 23, the end position being indicated by the positions 8ʹ, 9ʹ and 23ʹ and at the ends for the curved transport a curved conveyor 43 connects.

Einen vorteilhaften Aufbau eines Kurvenförderers 43 zeigen die Fig. 9 bis 11. Eine in Richtung des Pfeiles 64 in Fig. 9 um den Mittelpunkt 54 rotierende Scheibe 55 trägt stabförmige Mitnehmer 56, die im Aufnahmering 57 gelagert und durch Führungen 58 mitgenommen werden.An advantageous construction of a curved conveyor 43 is shown in FIGS. 9 to 11. A disk 55 rotating in the direction of arrow 64 in FIG. 9 around the center 54 carries rod-shaped drivers 56 which are mounted in the receiving ring 57 and are carried by guides 58.

Fig. 10 stellt einen Schnitt entlang der Linie X-X der Fig. 9 dar und läßt erkennen, daß die Mitnehmer 56 um den Drehpunkt 59 im Aufnahmering 57 schwenkbar sind und in den Führungen 58 auf- und abgleiten können. Diese Bewegung wird von Rollen 60, die an den Enden eines jeden der Mitnehmer 56 rotieren können, von einer kreisförmigen Kurvenbahn 61 abgenommen. Fig. 11 zeigt in einem Schnitt entlang der Linien XI-XI der Fig. 10, daß jeder Mitnehmer 56 im Bereich des Förder- und Speichersystems 2 eine trichterförmige Aufnahme 62 hat. Gemäß Fig. 9 erfolgt die Umlenkung des Förder- und Speichersystems 2 mit dem Kurvenförderer um 180°. Dabei folgt das Förder- und Speichersystem 2 den entsprechend geformten Führungsschienen 14, wobei es im äußeren Bogen weiter auseinandergezogen ist wie in dem inneren, d. h. engeren Bogen. Die Umfangsgeschwindigkeit der Mitnehmer 58 am äußeren Rand der Scheibe 55 entspricht der linearen Fördergeschwindigkeit in Richtung des Pfeiles 63. Bei der Rotation der Scheibe 55 in Richtung des Pfeiles 64 befinden sich die Mitnehmer 56 im Bereich 65 in der unteren Stellung der Kurvenrolle 60ʹ der Fig. 10. Sie laufen unter das Förder- und Speichersystem 2, um es im Bereich 66 anzuheben, bedingt durch die gezeigte Stellung 60. Nach einer 180°-Drehung wird diese Stellung im Bereich 67 wieder rückgängig gemacht, das Förder- und Speichersystem 2 also wieder auf die Schienen 14 abgesenkt. Die Rolle 60 bleibt dann bis zur Aufnahme im Bereich 66 in der unteren Stellung 60ʹ.Fig. 10 shows a section along the line XX of FIG. 9 and reveals that the drivers 56 are pivotable about the pivot point 59 in the receiving ring 57 and can slide up and down in the guides 58. This movement is taken up by rollers 60, which can rotate at the ends of each of the drivers 56, from a circular cam track 61. FIG. 11 shows in a section along the lines XI-XI of FIG. 10 that each driver 56 has a funnel-shaped receptacle 62 in the area of the conveyor and storage system 2. According to FIG. 9, the conveying and storage system 2 is deflected by the curved conveyor by 180 °. In this case, the conveyor and storage system 2 follows the correspondingly shaped guide rails 14, wherein it is pulled further apart in the outer curve than in the inner, ie narrower curve. The peripheral speed of the drivers 58 on the outer edge of the disk 55 corresponds to the linear conveying speed in the direction of the arrow 63. When the disk 55 rotates in the direction of the arrow 64 the driver 56 in the region 65 in the lower position of the cam roller 60ʹ of FIG. 10. They run under the conveyor and storage system 2 in order to raise it in the region 66, due to the position 60 shown. After a 180 ° rotation this position in the area 67 is reversed again, that is to say the conveyor and storage system 2 is again lowered onto the rails 14. The roller 60 then remains in the lower position 60ʹ until it is received in the region 66.

Claims (12)

  1. Transporting and storing arrangement for folded products which are guided on means which grip underneath the folded spines and are arranged on carrying and guiding devices, characterised in that segments (1), which are connected with each other in a zigzag or concertina-shaped manner, receive folded products, can be pushed or pulled apart or together and can be moved along guides (14), are displaceable by means of a circulating transporting arrangement (10, 23), which is arranged below or above the segments (1), so that the folded products, which hang or lie in a saddle-roof or V-shaped manner on or between two segments (1), when the segments (1) are spread are likewise spread.
  2. Transporting arrangement according to claim 1, characterised in that the segments (1) are slightly raised by the transporting arrangement (10, 23) and the conveying device (10, 23) consists of at least one circulating continuous band, a continuous chain or continuous toothed belt, the upper or lower side of which guides the segments (1).
  3. Transporting arrangement according to claim 1 or 2, characterised in that carriers (24) are arranged for the purpose of cycle-type guidance of the segments (1) on the continuous toothed belt or on the continuous chain (23), between which carriers one segment (1) is guided in each case.
  4. Transporting arrangement according to one of the preceding claims, characterised in that for the purpose of varying the path of transportation it is possible to displace at least one roller (4), which guides the continuous band, the continuous chain or the continuous toothed belt (10, 23) below the segments (1), with a path-compensating roller (5).
  5. Transporting arrangement according to one of the preceding claims, characterised in that supporting rollers (11) can be swung in between the rollers (4, 9) defining the path of transportation below the upper side of the continuous band, the continuous chain or the continuous belt (10, 23).
  6. Transporting arrangement according to one of the preceding claims, characterised in that the segments (1) can be pulled away from a storage area (25, 34,35) and apart from each other by means of at least one worm (22) with a pitch which becomes greater in the direction of transportation (21) of the segments (1).
  7. Transporting arrangement according to one of the preceding claims, characterised in that two conveying and storing devices (2, 2') are arranged one over the other and in that folded products (37) can be passed over from the upper conveying and storing device (24, 2) into the lower conveying and storing device (2', 24', 23') or can be inserted between folded copies (36) located there.
  8. Transporting arrangement according to claim 7, characterised in that the segments (1) can be pushed together and into a store (17) with the lower transporting arrangement (2') after passing-over or mixing of folded products (36) has taken place.
  9. Transporting arrangement according to one of the preceding claims, characterised in that the guides (14) run via an arcuate section and the segments (1) can be moved in the latter by means of carriers (56) which are rotatable about a central point (54) and are guided on a disc (55).
  10. Transporting arrangement according to claim 9, characterised in that the carriers (56) can be raised when swinging in (at 66) under the segments (1).
  11. Transporting arrangement according to claim 10, characterised in that the segments (1) can be raised by a circular cam track (61).
  12. Transporting arrangement according to one of the preceding claims, characterised in that the conveying and storing system is guided in a continuous manner via straight and curved sections with storage areas (40, 41, 49) and in that loading and mixing areas (44, 46, 48) are provided in the linear sections.
EP87106361A 1986-06-28 1987-04-30 Device for transporting folded products Expired - Lifetime EP0250772B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87106361T ATE65063T1 (en) 1986-06-28 1987-04-30 TRANSPORT DEVICE FOR FOLDED PRODUCTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3621834 1986-06-28
DE3621834A DE3621834C1 (en) 1986-06-28 1986-06-28 Transport device for folded products

Publications (3)

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EP0250772A2 EP0250772A2 (en) 1988-01-07
EP0250772A3 EP0250772A3 (en) 1989-05-10
EP0250772B1 true EP0250772B1 (en) 1991-07-10

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EP87106361A Expired - Lifetime EP0250772B1 (en) 1986-06-28 1987-04-30 Device for transporting folded products

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US (1) US4828242A (en)
EP (1) EP0250772B1 (en)
JP (1) JPH0620954B2 (en)
AT (1) ATE65063T1 (en)
AU (1) AU592200B2 (en)
CA (1) CA1289580C (en)
DE (2) DE3621834C1 (en)
ES (1) ES2023377B3 (en)

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US5129781A (en) * 1988-04-02 1992-07-14 Man Roland Druckmaschinen Ag Apparatus for receiving, storing and processing printed products
DE3811290C1 (en) * 1988-04-02 1989-11-02 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE3915228A1 (en) * 1989-05-10 1990-11-15 Roland Man Druckmasch DEVICE FOR TAKING FOLDED PRODUCTS FROM A SUPPORT STRUCTURE
DE4003451A1 (en) * 1990-02-06 1991-08-08 Focke & Co Method of supplying carton making machine with blanks
US5501443A (en) 1994-12-02 1996-03-26 Heidelberger Druckmaschinen Ag Device for the release of folded products
US5865295A (en) * 1995-01-03 1999-02-02 Ferag, Ag Apparatus for conveying articles, in particular sheet-like, flexible, products
EP1426293B1 (en) * 2002-11-29 2006-06-14 Ferag AG Method and apparatus for packaging flat articles
NO342938B1 (en) * 2016-10-06 2018-09-03 Qinterra Tech As Downhole tractor comprising two or more hydraulic supply lines
DE102016013432A1 (en) * 2016-11-10 2018-05-17 Giesecke+Devrient Currency Technology Gmbh Device and method for transporting value documents, in particular banknotes, as well as value document processing system
CN112255985A (en) * 2020-10-28 2021-01-22 浙江瑞晟智能科技股份有限公司 Main line identification method and system
CN118004717B (en) * 2024-03-29 2024-06-18 山西华拓电气有限公司 Automatic conveying device for coal mine

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NL151315B (en) * 1970-08-14 1976-11-15 Oce Van Der Grinten Nv DEVICE FOR THE SORTED COLLECTION OF SHEET SHEET-SHAPED MATERIAL.
US4046367A (en) * 1975-11-10 1977-09-06 American Newspaper Publishers Association, Incorporated Modified high speed paper inserting apparatus and method
CH618398A5 (en) * 1977-06-06 1980-07-31 Ferag Ag
CH669944A5 (en) * 1986-04-04 1989-04-28 Ferag Ag
US4723770A (en) * 1986-06-20 1988-02-09 Graphic Management Associates, Inc. Straight-line insert machine
NZ220544A (en) * 1986-06-20 1989-09-27 Graphic Management Assoc Straight-line sheet collating apparatus
DE3621832C1 (en) * 1986-06-28 1987-09-17 Roland Man Druckmasch Device for receiving and continuing folding products

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EP0169490A1 (en) * 1984-07-26 1986-01-29 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Device for processing folded products

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Publication number Publication date
ATE65063T1 (en) 1991-07-15
JPS6366047A (en) 1988-03-24
JPH0620954B2 (en) 1994-03-23
DE3621834C1 (en) 1987-09-17
AU7465287A (en) 1988-01-07
CA1289580C (en) 1991-09-24
US4828242A (en) 1989-05-09
EP0250772A2 (en) 1988-01-07
DE3771278D1 (en) 1991-08-14
EP0250772A3 (en) 1989-05-10
ES2023377B3 (en) 1992-01-16
AU592200B2 (en) 1990-01-04

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