EP0243754B1 - Procédé et dispositif pour traiter des produits imprimés comme des journaux, des magazines et analogues - Google Patents

Procédé et dispositif pour traiter des produits imprimés comme des journaux, des magazines et analogues Download PDF

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Publication number
EP0243754B1
EP0243754B1 EP87105247A EP87105247A EP0243754B1 EP 0243754 B1 EP0243754 B1 EP 0243754B1 EP 87105247 A EP87105247 A EP 87105247A EP 87105247 A EP87105247 A EP 87105247A EP 0243754 B1 EP0243754 B1 EP 0243754B1
Authority
EP
European Patent Office
Prior art keywords
winding
location
rolls
magazine
unwinding
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
EP87105247A
Other languages
German (de)
English (en)
Other versions
EP0243754A1 (fr
Inventor
Walter Reist
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.)
Ferag AG
Original Assignee
Ferag 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 Ferag AG filed Critical Ferag AG
Priority to AT87105247T priority Critical patent/ATE58705T1/de
Publication of EP0243754A1 publication Critical patent/EP0243754A1/fr
Application granted granted Critical
Publication of EP0243754B1 publication Critical patent/EP0243754B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/006—Winding articles into rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/24—Feeding articles in overlapping streams, i.e. by separation of articles from a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/28—Feeding articles stored in rolled or folded bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/419—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means
    • B65H2301/4192—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means for handling articles of limited length in shingled formation
    • B65H2301/41922—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means for handling articles of limited length in shingled formation and wound together with single belt like members
    • 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
    • B65H2701/19—Specific article or web
    • B65H2701/1932—Signatures, folded printed matter, newspapers or parts thereof and books
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the present invention relates to methods and devices for processing printed products, such as newspapers, magazines and the like, in scale formation according to the preamble of claims 1 and 2.
  • the present invention has for its object to provide a method and an apparatus of the type mentioned that a quick and easy unloading of the winding station or a quick and easy loading of an unwinding station and a rational handling of the reel with the least possible time and equipment Enable effort.
  • the winding point By rolling the finished roll out of the winding point into an adjacent buffer magazine and onto a support designed as a transport element, the winding point is very quickly free to insert an empty winding core after completion of a winding, so that the winding point is ready again for forming the next roll after a short time is.
  • This rapid changeover also makes it possible to produce coils with smaller diameters, which are completed in a shorter time than large coils.
  • the transport of the wraps lying on the support can be done in a time-saving manner and with conventional handling means.
  • a roll can be rolled very quickly from the buffer magazine arranged adjacent to the unwinding point to the unwinding point and made ready for unwinding.
  • the supports, each loaded with a number of reels, can also be brought to the unwinding station using conventional handling equipment.
  • This winding station I has a bearing unit 3 which defines a winding point 2, the structure of which is shown in more detail in FIGS. 7 and 8.
  • This bearing unit 3 serves for the storage of hollow cylindrical winding cores 4, so that they can be driven rotatably about their essentially horizontal axis 4a.
  • a brake arrangement 8 acts on this supply spool 6.
  • the winding tape 7 is guided over a drive roller 9 and runs on the top of a belt conveyor 10 designed as a rocker to the winding core 4, to which the winding tape 7 is connected.
  • the belt conveyor 10 is pivotally mounted about an axis aligned with the axis of rotation of the drive roller 9.
  • the drive roller 9 and also the belt conveyor 10 are driven by a drive motor II which drives the winding core 4 in the direction of arrow B (FIG. I) via a winder gear 12.
  • the belt conveyor 10 is preceded by a feed conveyor 13 which is to be wound up Feeds printed products 14 in scale formation S.
  • the winding station I also has a magazine 15 which is arranged adjacent to the winding point 2 and has a support 16 for finished printed product rolls W.
  • This support 16 connects to a runway 17 which extends to the take-up point 2.
  • the magazine 15 also has lateral guides 18 and 19 for the winding W. These guides 18, 19 can, however, possibly be omitted.
  • a lock 20 Viewed in the rolling direction R of the winding W at the rear end of the magazine 15 there is a lock 20 which can be released by means of a drive 21. This lock prevents the winding W from rolling away.
  • the scale formation S fed by the feed conveyor 13 is turned with a flat side of the printed products 14 facing the winding core 4 together with the winding tape 7 under tension on the winding core 4, which is driven for this purpose by the motor II in the direction of arrow B (FIG. I).
  • the winding formation S on the winding core 4 is basically carried out in the manner described in CH-PS 642 602 or in the corresponding US-PS 4,438,618.
  • this roll W 1 After completion of a roll W i (FIG. 2), this roll W 1 is rolled out of the take-up point 2 in the direction of arrow R into the magazine 15.
  • the runway 17 and support 16 are slightly inclined with respect to the horizontal, so that the winding W 1 can be rolled away from the winding point 2 very quickly and with little effort.
  • the winding W 1 rolls up to the lock 20, by which it is prevented from continuing to roll.
  • This magazine 15 is able to accommodate a number of coils.
  • 3 shows three windings W 1 , W 2 and Ws located in the magazine 15.
  • the magazine 15 acts as a buffer magazine from which the windings Wi, W 2 , Wa can be removed at any time and can be brought, for example, to an intermediate store or to an unwinding station.
  • the lock 20 is released by means of the drive 21, which enables a winding, for example the winding W 1 , to roll out of the magazine 15.
  • the winding W removed from the magazine 15 can be transported further in any suitable manner.
  • windings can be removed from the magazine at the other end.
  • the windings are arranged one behind the other in the magazine 15 as viewed in the rolling direction R and rest against one another with their peripheral surface 22.
  • an unwinding station 23 is now shown in different working phases.
  • This unwinding station 23 is very similar to the unwinding station according to FIGS. 1 to 3 and has a bearing unit 25 which defines an unwinding point 24.
  • the latter serves for the rotatable mounting of the winding W about an essentially horizontal axis.
  • the winding tape 7 is guided over a drive roller 28 which is driven by a motor 29 which rotates the take-up spool 27 in the direction of arrow C via a winder gear 30.
  • the motor 29 largely drives a belt conveyor 31 designed as a rocker, the direction of conveyance of which is indicated by D in the figures.
  • a brake arrangement 32 acting on the winding core 4 is provided.
  • a belt conveyor 33 is connected downstream of the belt conveyor 31.
  • the winding tape 7 and with it the wound printed products 14 are unwound from the winding W and guided away via the belt conveyor 31 and the removal conveyor 33.
  • the unwound winding tape 7 is wound on the take-up spool 27.
  • the winding W rotating in the direction of arrow E (FIG. 4) is slightly braked by means of the brake arrangement 32.
  • the unwinding of the printed products 14 from the coils W is basically carried out in the manner described in CH-PS 649 062 or the corresponding US-PS 4,438,618.
  • a magazine 34 Adjacent to unwind location 24, a magazine 34 is arranged, which is similar in construction to the magazine 15 according to FIGS. I to 3.
  • the magazine 34 has a slightly sloping against the unwind 24 table 35 for winding Ws, Ws, W 7, which merges into a runway 36 which extends into the unwinding point 24.
  • the magazine 34 At its end adjacent to the unwinding point 24, the magazine 34 has a lock 37 which can be actuated by means of a drive 38. This lock 37 prevents the winding W from rolling out of the magazine 34.
  • This bearing unit 3 has two shaft ends 39, 40 aligned with one another in the direction of the axis 3a and ending at a distance from one another. These are rotatably mounted by means of ball or roller bearings 41, 42 and carry at one end a chain or gear 43 which is driven by the drive motor II via the winder gear 12. Bearing sleeves 44, 45, which can be displaced in the direction of the arrows F, sit on these shaft ends 39, 40. This displaceability is made possible by wedge connections 46, 47 via which the bearing sleeves 44, 45 are connected to the shafts 39, 40 in a rotationally fixed manner. The bearing sleeves 44, 45 are displaced by means of the drives designated 48 and 49.
  • Fig. 7 the bearing sleeves 44, 45 are shown in their retracted position in which they engage in the inside of a winding core 4 and store it.
  • the bearing sleeves 44, 45 come out of engagement with the winding core 4, which now enables the winding W lying on the runway 17 as described with reference to FIGS. 1 to 3 roll out of the take-up point 2.
  • the winding W can be guided laterally through the guides 18 and 19 and thereby prevented from tipping over.
  • bearing unit of the unwinding station 23 can be designed similarly to that shown in FIGS. 7 and 8.
  • FIGS. 1 to 3 differs from the embodiment according to FIGS. 1 to 3 by a different configuration of the magazine 50 arranged adjacent to the winding point 2.
  • the latter has a pallet 51 which rests on a roller conveyor 52. With 53 the drive of the roller conveyor 52 is designated.
  • This roller conveyor 52 has a conveying direction G which is approximately at right angles to the rolling direction R of the finished roll W.
  • the winding point 2 is connected to the pallet 51 via the slightly inclined runway 17.
  • the finished rolls W are rolled out of the take-up point 2 in the direction of arrow R, as explained with reference to FIGS. 1 to 3, and reach the pallet 51 via the runway 17, on which they rest with their peripheral surface 22.
  • the windings W are prevented from rolling away from the pallet 51 by means of locking elements 54, 55.
  • a finished roll W After a finished roll W has been rolled onto the pallet 51, it is advanced in the direction of the arrow G.
  • the next winding for example the winding W 4 , now comes to lie next to the previously created winding, for example the winding W 3 .
  • the coils of the same size Wh W 2 , W 3 , W 4 are now arranged with their flat sides facing one another, so that the winding core axes 4a of the coils located on the pallet 51 are aligned with one another.
  • the pallet 51 can be gripped by means of a conventional handling device for the transport away of the windings located on the pallet 51.
  • the finished reels Wi, W 2 , W 3 , W 4 are therefore not removed individually from the magazine 50, but rather as transport units containing a number of reels.
  • these transport units are filled into a magazine 56 of an unwinding station 23 according to the invention, as is shown in FIGS. 11 and 12.
  • this unwinding station 23 corresponds to the embodiment shown in FIGS. 4 to 6.
  • the pallet 51 with the windings Ws, Ws, W 7 , W 8 to be emptied is placed on a part of the roller conveyor 57 formed in the magazine 56, which can be driven by a drive 58.
  • the conveying direction of this roller conveyor 56 is designated by H in FIG.
  • the windings W are rolled from the pallet 51 over the roller conveyor 36 in the direction of the arrow R 'to the unwinding point 24, as was explained in more detail with reference to FIGS. 4 to 6.
  • the pallet 51 is advanced in the direction of arrow H in order to bring the windings one after the other into a position aligned with the runway 36.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Discharge By Other Means (AREA)
  • Unwinding Webs (AREA)
  • Winding Of Webs (AREA)
  • Packaging Of Special Articles (AREA)
  • Basic Packing Technique (AREA)

Claims (4)

1. Procédé de traitement d'imprimés tels que des journaux, des périodiques ou des éléments similaires, présentant l'aspect d'une structure en tuiles, dans lequel la structure en tuiles est enroulée, à un emplacement d'enroulement (2), en même temps qu'une bande d'enroulement (7) soumise à une contrainte de tension, sur un noyau d'enroulement (4) cylindrique creux, en rotation autour d'un axe sensiblement horizontal (4a), une de faces plates étant tournée vers ce noyau d'enroulement (4), et dans lequel les rouleaux finis (W) sont enlevés à distance, ou dans lequel de tels rouleaux finis (W) sont amenés à un emplacement de déroulement (24) et les imprimés sont déroulés du rouleau fini (W) avec la bande d'enroulement (7) à cet emplacement de déroulement (24), caractérisé en ce que les rouleaux finis (W), qui reposent sur une piste de roulement (17) reliant l'emplacement d'enroulement (2) à un magasin tampon (50) voisin de ce dernier, sont, après l'enroulement, roulés l'un après l'autre, hors de l'emplacement d'enroulement (2) sur cette piste de roulement (17), avec les imprimés, sur un support (51), disposé dans le magasin tampon (50) et réalisé sous forme d'élément de transport, et qu'ils sont disposés côté-à-côte sur ce dernier, vus dans la direction d'enroulement (R), ou en ce que, pour le déroulement, respectivement plusieurs rouleaux (W) sont disposés côte-à-côte sur un support (51) en forme d'élément de transport, sont amenés à un magasin tampon (56) voisin de l'emplacement de déroulement (24) et que ces rouleaux, qui reposent sur une piste de roulement (36) reliant le magasin tampon (56) à l'emplacement de déroulement (24), sont ensuite roulés l'un après l'autre, sur cette piste de roulement (36) hors du magasin tampon (56) vers l'emplacement de déroulement (24), avec les imprimés enroulés, le support (51) étant déplacé, quand les rouleaux (W) sont roulés, aussi bien pour être amenés que pour être enlevés, transversalement respectivement, à la direction dans laquelle ils sont amenés (R) ou à la direction dans laquelle il sont enlevés (R').
2. Dispositif de traitement d'imprimés tels que des journaux, des périodiques ou des éléments similaires, présentant l'aspect d'une structure en tuiles, comportant un ensemble de paliers (3) définissant un emplacement d'enroulement (2), pour loger à rotation un noyau d'enroulement (4) cylindrique creux, d'axe sensiblement horizontal, un entraînement (11) du noyau d'enroulement (4), un dispositif d'amenée (10) pour amener à l'emplacement d'enroulement (2) la structure en tuiles à enrouler sur le noyau d'enroulement (4), un logement (5) pour une bobine de réserve (6) comprenant une bande d'enroulement (7) qui peut être reliée au noyau d'enroulement (4), et une piste de roulement (17) pour enlever, en les roulant, les rouleaux finis (W), ou comportant un ensemble de paliers (25), d'axe sensiblement horizontal, définissant un emplacement de déroulement (24), pour loger les rouleaux finis (W), un ensemble d'entraînement (26) pour loger et entraîner une bobine de réception (27) destinée à la bande d'enroulement (7) déroulée du rouleau fini (W), et un dispositif d'enlèvement pour enlever la structure en tuiles déroulée du rouleau fini (W) avec la bande d'enroulement (7), caractérisé en ce que, au voisinage de l'emplacement d'enroulement (2) ou de l'emplacement de déroulement (24), est disposé un magasin tampon (50, 56), destiné à recevoir temporairement plusieurs rouleaux finis (W), qui est relié à l'emplacement d'enroulement (2) ou à l'emplacement de déroulement (24) par la piste de roulement (17, 36) servant de support aux rouleaux finis (W), roulés depuis l'emplacement d'enroulement (2) vers le magasin tampon (50) ou depuis le magasin tampon (56) vers l'emplacement de déroulement (24), et qui comporte un dispositif d'entraînement (52, 57) se raccordant à la piste de roulement (17, 36), de direction d'entraînement (G, H) transversale à la direction de roulement (R, R') des rouleaux finis, destiné à recevoir et à déplacer des supports (51) en forme d'élément de transport, s'étendant transversalement à la direction de roulement (R, R') des rouleaux finis (W), destinés respectivement à plusieurs rouleaux finis (W) disposés côte-à-côte et reposant sur les supports (51) par leurs surfaces périphériques (22).
3. Dispositif selon la revendication 2, caractérisé en ce que les supports (51, 54) sont pourvus de moyens de blocage (54, 55) pour le blocage des rouleaux finis (W).
4. Dispositif selon la revendication 2, caractérisé en ce que chaque ensemble de paliers (3, 25) comporte deux éléments de paliers (44, 45) orientés axialement l'un vers l'autre, qui sont mobiles l'un vers l'autre ou en sens opposé dans la direction de leur axe commun (3a), sensiblement horizontal.
EP87105247A 1986-04-28 1987-04-09 Procédé et dispositif pour traiter des produits imprimés comme des journaux, des magazines et analogues Expired - Lifetime EP0243754B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87105247T ATE58705T1 (de) 1986-04-28 1987-04-09 Verfahren und vorrichtung zum verarbeiten von druckereierzeugnissen, wie zeitungen, zeitschriften und dergleichen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1731/86 1986-04-28
CH173186 1986-04-28

Publications (2)

Publication Number Publication Date
EP0243754A1 EP0243754A1 (fr) 1987-11-04
EP0243754B1 true EP0243754B1 (fr) 1990-11-28

Family

ID=4217274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105247A Expired - Lifetime EP0243754B1 (fr) 1986-04-28 1987-04-09 Procédé et dispositif pour traiter des produits imprimés comme des journaux, des magazines et analogues

Country Status (6)

Country Link
US (1) US5012988A (fr)
EP (1) EP0243754B1 (fr)
JP (1) JP2759647B2 (fr)
AT (1) ATE58705T1 (fr)
CA (1) CA1297464C (fr)
DE (1) DE3766407D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1463676A2 (fr) * 2002-01-09 2004-10-06 Meadwestvaco Packaging Systems, LLP Procede de stockage, de transport et de distribution de caisses en carton

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941600C (de) * 1941-03-11 1956-04-12 Siemag Siegener Maschb Ges Mit Vorrichtung zum Stapeln und Weiterleiten von gewickelten Baendern und Drahtwickeln
WO1985001279A1 (fr) * 1983-09-19 1985-03-28 Ferag Ag Enroulement de produits comprimes

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508566A (en) * 1946-06-10 1950-05-23 Diamond Match Co Web roll backstand
GB1082033A (en) * 1965-04-12 1967-09-06 Kleinewefers Soehne J Winding-off apparatus for material lengths wound on reels, especially paper reels
US3586253A (en) * 1969-02-06 1971-06-22 Beloit Corp Reel loader for paper machines or the like
BE787612A (fr) * 1971-08-16 1973-02-16 Monsanto Co Procede continu de polymerisation en masse
FR2206160B1 (fr) * 1972-11-11 1977-09-09 Fleck Soehne Gmbh C
CH559691A5 (en) * 1973-06-25 1975-03-14 Burda Farben Kg Non-cohesive sheet storage mechanism - accommodates staggered sheets between two belts winding onto drum
US3977617A (en) * 1973-07-12 1976-08-31 Salmon Marion B Film winding and perforating apparatus
JPS533226Y2 (fr) * 1974-01-28 1978-01-27
JPS53115308A (en) * 1977-03-04 1978-10-07 Tokyo Kikai Seisakushiyo Kk Device for automatically supplying rolled paper in rotary press
US4265411A (en) * 1979-07-18 1981-05-05 Fasolak Ambrozy J Paper roll backstand
DD158476A3 (de) * 1980-06-23 1983-01-19 Klaus Gebhardt Vorrichtung zum einspannen von wickelhuelsen
CH642602A5 (de) * 1980-07-15 1984-04-30 Ferag Ag Einrichtung zum stapeln von im schuppenstrom anfallenden druckprodukten, wie zeitungen, zeitschriften und dergleichen.
EP0054735B1 (fr) * 1980-12-23 1985-01-16 Windmöller & Hölscher Dispositif de fabrication de rouleaux de bandes formées à partir de feuilles souples imbriqueés
CH652701A5 (de) * 1981-02-03 1985-11-29 Ferag Ag Verfahren und einrichtung zur erzielung eines langzeitpressungseffekts bei druckprodukten, insbesondere zeitungen.
IT1145030B (it) * 1981-02-25 1986-11-05 Gd Spa Dispositivo per l'alimentazione automatica di bobine ad una macchina operatrice
JPS5859144A (ja) * 1981-09-30 1983-04-08 Rengo Co Ltd ミルロ−ルスタンド
CH656596A5 (de) * 1982-05-05 1986-07-15 Grapha Holding Ag Verfahren zum vereinzeln der druckbogen eines in teilschuppen unterteilten schuppenstroms.
CH657832A5 (de) * 1982-06-09 1986-09-30 Grapha Holding Ag Beschickungs- und/oder lagereinrichtung fuer bogen, insbesondere druckbogen.
SU1584747A3 (ru) * 1986-04-28 1990-08-07 Фераг Аг (Фирма) Устройство дл штабелировани рулонов и разбора штабел из них

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941600C (de) * 1941-03-11 1956-04-12 Siemag Siegener Maschb Ges Mit Vorrichtung zum Stapeln und Weiterleiten von gewickelten Baendern und Drahtwickeln
WO1985001279A1 (fr) * 1983-09-19 1985-03-28 Ferag Ag Enroulement de produits comprimes

Also Published As

Publication number Publication date
JP2759647B2 (ja) 1998-05-28
EP0243754A1 (fr) 1987-11-04
CA1297464C (fr) 1992-03-17
DE3766407D1 (de) 1991-01-10
US5012988A (en) 1991-05-07
ATE58705T1 (de) 1990-12-15
JPS62255348A (ja) 1987-11-07

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