EP0424991B1 - Method and device for the packaging of products - Google Patents

Method and device for the packaging of products Download PDF

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Publication number
EP0424991B1
EP0424991B1 EP90124420A EP90124420A EP0424991B1 EP 0424991 B1 EP0424991 B1 EP 0424991B1 EP 90124420 A EP90124420 A EP 90124420A EP 90124420 A EP90124420 A EP 90124420A EP 0424991 B1 EP0424991 B1 EP 0424991B1
Authority
EP
European Patent Office
Prior art keywords
folding
article
members
packaging
tab
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
EP90124420A
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German (de)
French (fr)
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EP0424991A1 (en
Inventor
Heinz Focke
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.)
Focke and Co GmbH and Co KG
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Focke and Co GmbH and Co KG
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Publication of EP0424991A1 publication Critical patent/EP0424991A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • B65B11/12—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents and then to form closing folds of similar form at opposite ends of the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/003—Arrangements to enable adjustments related to the packaging material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/02—Plurality of alternative input or output lines or plurality of alternative packaging units on the same packaging line for improving machine flexibility

Definitions

  • the invention relates to soft packs consisting of plastic film, namely paper handkerchief packs which can be packaged into a container (large pack) from several of these small packs by means of an outer wrapping likewise made of plastic film.
  • the container can consist of six, eight, ten, twelve, eighteen or more small packs (paper handkerchief packs).
  • the protruding longitudinal tabs are folded against the back of a group of small packs, the upper and the lower longitudinal tabs overlapping in an end region thereof.
  • the sealing takes place in such a way that pressure and heat are exerted from the outside towards the package.
  • a method for wrapping chocolate bars is known from CH-A-426 609.
  • the preamble of claim 1 corresponds to this prior art.
  • a wrapping film is placed around a U-shaped sheet when it moves.
  • There are folding members which seal longitudinal tabs projecting against the conveying direction with one another to form an edge strip.
  • the edge strip is formed at the top of the object.
  • the folding elements must be readjusted for folding thicker objects.
  • the edge strip is not sealed to the back.
  • the object of the present invention is to further increase the reliability of the folding process and still enable a simple format change.
  • the advantages achieved by the invention are, in particular, that no heat and no pressure is exerted on the inner pack when the outer casing is sealed. Instead, the sealing is carried out by heat and pressure on the back next to the group of small packs in an extension of one long side of the same.
  • the edge strip that emerges from the sealing of the upper and lower side tabs and is formed by them is then folded around against the envelope and sealed with it.
  • the same material can be used for both the outer wrapper and the inner wrapper.
  • the lower butterfly is designed as a sealing organ and is located on the back of the group next to it. It can be moved up and down and can therefore be used to seal different pack sizes. In addition, the underfold folds the edge strip up to the contact with the outer wrapper by moving it upwards. This double function of an organ means that only a relatively small number of packaging elements need to be replaced when the format is changed.
  • the exemplary embodiments shown in the drawings deal with the production of large packs, so-called containers 20, from a plurality of small packs 21, in the present case paper handkerchief packs.
  • the containers 20 are set up for this purpose Packaging machine, a pack packer 22, manufactured. This is part of a manufacturing and packaging system for paper handkerchiefs, a "line”. It consists of a folding machine 23, a handkerchief packaging machine 24, one of these downstream tape units 25 for attaching a sealing strip to the small package 21, a stacking head 26, the subsequent packer 22 and a carton packer 27 connected to it.
  • the small packs 21 are produced in two lines in the present exemplary embodiment.
  • a common row of packs 28 is formed from possibly several small packs 21 arranged one above the other. This is fed to the packer 22 by a feed conveyor 29.
  • the large packs can have different dimensions, depending on the number of small packs 21 per pack 20.
  • Small packs 20 consist of six small packs 21, large packs 20 contain z.
  • the container 20 is formed by a covering 31 made of plastic film.
  • the pack packer 22 is designed in such a way that packs 20 of different sizes can be moved by replacing packaging elements.
  • Packaging organs are folding organs for the wrapping 31, sliders for the transport of the groups 30, conveying organs for film webs and sealing organs.
  • the number and type of packaging elements result from the design of the container 20 or the steps for the production of the wrapper 31.
  • the wrapping 31 is folded in a special way and leads to a container 20 that is special with respect to the wrapping 31.
  • the folding sequence is shown in FIGS. 2 to 6.
  • a blank for the wrapper 31 is held ready in the vertical plane and folded in a U shape around the contents (group 30) by conveying the group 30 through the plane of the blank.
  • horizontally directed longitudinal tabs 32, 33 which initially protrude at the rear of group 30 have different lengths.
  • the upper longitudinal tab 32 is dimensioned such that the rearward-facing long side of the container 20 or the group 30 is covered at full height.
  • This longitudinal tab 32 is folded against the back of the group 30 in the upright position (Fig. 3).
  • a lower edge tab 34 of the longitudinal tab 32 is placed on the upper side of the correspondingly dimensioned lower longitudinal tab 33 and sealed with it by heat and pressure (FIG. 3 and detail in FIG. 7).
  • a double-layered edge strip 35 formed in this way is then folded into an upright position until it rests on the side face or on the upper longitudinal tab 32 (folded position according to FIG. 4).
  • Front side flaps 36 and rear side flaps 37 are successively folded against the side surface of group 30.
  • the front side tab 36 is folded (FIG. 2).
  • the rear side tab 37 Only later, namely after completion of the rear wall of the envelope 31, is the rear side tab 37 folded by corresponding movement of a folding member (FIG. 5).
  • upper lobes 38 and lower lobes 39 are folded over to rest against the side surfaces or on the side lobes 36, 37 (FIG. 6).
  • Upper lobe 38 and lower lobe 39 on the one hand and Side tabs 36 and 37, on the other hand, are sealed together by heat and pressure.
  • the means required for this folding and sealing process together form a complete set of packaging elements.
  • the bundle packer 22 is assigned a plurality of sets of packaging members, these being expediently completely interchangeable to adapt to different formats of the bundles 20.
  • the pack packer 22 shown and described here is set up to accommodate two sets 40, 41 of the packaging members. These sets 40 and 41 are located in a packaging station 42. Each of the sets, in the example shown in FIG. 1, the set 40 is located in the packaging position 43. The small packages 21 or the groups 30 are fed to this.
  • the sets 40 and 41 are detachably connected to an adjustable carrying device, namely a rotating mechanism, which alternatively moves the sets 40, 41 into the packaging position 43 or into an exchange position 44 by rotating movement.
  • an adjustable carrying device namely a rotating mechanism
  • the packaging members of the set 41 are preferably completely replaced as a unit.
  • the slewing gear here consists of an upright support column 45 which is firmly connected to a machine frame or a drive housing 46.
  • a cross member 47 is rotatably mounted on the support column 45.
  • holders for the sets 40, 41 are attached, namely transverse support rods 48.
  • the packaging members of the sets 40, 41 are removable, namely removable, attached to these horizontally oriented support rods, which can be rotated about the support column 45 with the cross member 47.
  • the pack row 28 is fed to the packing station 42 approximately in the middle.
  • the feed conveyor 29 is centered on the support column 45.
  • a number of small packs 21 corresponding to the size of the bundle - arranged in a plurality above one another - is detected by a transversely movable swivel slide 49 acting along a quarter circle and conveyed along a four-part circle on a plate-shaped top track 50 into the packaging position 43.
  • the pivoting slide 49 is connected to a plate forming the upper track 50.
  • the group 30 of the small packs 21 reaches the area of a lifting platform 51. Their most important task is to lower the group from the level of the upper track 50 to the level of a main track 52. This consists of a height opposite the Upper web 50 offset web plate 53.
  • the packaging elements are arranged or effective on the main web 52.
  • the lifting platform 51 consists of a platform 54 on which the group 30 is pushed by the pivoting slide 49.
  • the platform 54 is formed by three sub-platforms, which are supported on a lower, transverse support profile 55.
  • the top of the lifting platform 51 is formed by a platform cover 56, which lies on the top of the group 30.
  • the platform cover 56 is connected to an upper cross bar 57.
  • These and the lower support profile 55 are connected to one another by upright guide rods 58.
  • the guide rods 58 can be moved up and down in fixed slide bearings 59 on the track plate 53.
  • Another special feature of the lifting platform 51 is that its side walls 60 can be moved transversely in order to exert a lateral pressure on the small packs 21 of the group 30. This makes it possible to set the group 30 as the content of the container 20 to an exact, constantly recurring dimension.
  • the side walls 60 are to this Purpose pivoted on pivot arms 61 which are connected to the lower support profile 55 via a pivot bearing 62. When a group 30 is received, the side walls 60 are moved apart. The side walls 60 are then moved towards one another by compressing the small packs 21.
  • the lifting platform 51 In the upper starting position (FIG. 12), the lifting platform 51 is aligned with the platform 54 on the upper track 50. After group 30 has been taken up, the lifting platform 51 is lowered until the platform 54 is aligned with the main track 52.
  • the group 30 is ejected, specifically by a pusher 63.
  • This passes through the lifting platform 51, taking the group 30 with it.
  • the pusher 63 is guided by pushrods 64, which are located below the track plate 53, while the pusher 63 itself moves above it.
  • the group 30 passes through the level of a film web 65 when leaving the lifting platform 51. This is held ready in an upright plane by a film apparatus 66.
  • the film web 65 is carried along by the group 30, a metered blank for forming the covering 31 being separated from the film web 65 by separating knives 67.
  • the blank wraps around the group 30 in a U-shape and is then folded in the manner described above (FIGS. 2-6).
  • This folding takes place in the area of a folding station 68.
  • side flaps 36 lying in the direction of movement are folded by side folders 69 on both sides of the movement path of group 30.
  • the side folders are moved from a forward position of the group 30 into the region of the side tabs 36. These are folded by the side folders 69, the side folders 69 then being conveyed further with the group 30.
  • the group 30 with the wrapping 31 (and with the side folders 69 in the folded position) is conveyed from the already largely fully-folded containers 20 until it abuts against a container row 70, with the container row 70 continuing to move by one movement stroke corresponding to the dimension of a container 20.
  • the pusher 63 then returns to the starting position.
  • the side folders 69 on both sides of the container 20 are moved in the opposite direction to the movement of the container 20, the side folder 69 emerging from the area of the group 30 on the not yet folded back of the wrapper 31 (position according to FIG. 2).
  • the longitudinal flaps 32, 33 can be folded to form the edge strip 35 (folding processes according to FIGS. 3 and 4).
  • An upper folder 71 is provided for the downward folding of the upper longitudinal tab 32, which here consists of a relatively thin wall with a lower angled leg 72. This presses the edge tab 32 onto the lower, projecting longitudinal tab 33.
  • the longitudinal tab 33 rests on a lower folder 73, which also serves as a sealing tool and is therefore heatable.
  • the lower folder 73 is designed as an angular profile piece (FIG. 14).
  • the approximately horizontally directed edge strip 35 lies on an upward leg 74 of the lower folder 73.
  • the edge strip 35 is pressed by the upward movement of the lower folder 73 against the rear longitudinal surface of the envelope 31 or against the longitudinal tab 32 and sealed with it.
  • the upper folder 71 and lower folder 73 can only be moved up and down.
  • the upper folder 71 is connected via holding rods 75 to a support profile 76 which extends transversely above the folding station 68. This is movably supported on the track plate 53 via lateral, upright guide rods 77.
  • the guide rods 77 can be moved up and down in slide guides 78 in the web plate 53 in order to carry out the folding movement.
  • the lower folder is mounted in the starting position below the web plate 53 or the main web 50, so that the leg 74 lies flush with the underside of the container 20.
  • the lower folder 73 is attached laterally to a profile rod 79, which in turn is connected at the ends to guide rods 80. These in turn are mounted in an upright arrangement in sliding guides 81 on or in the track plate 53. Due to its function, the lower folder 73 performs only small lifting movements.
  • the next group 30 is fed with the wrapping 31, the side folders 69 running in the manner described with this subsequent group 30, with the side flaps 36 being folded over.
  • the relative position of the side folders 69 is such that in the end position one is in the direction of movement the front area of the side folder 69 enters the area of the side surfaces of the pack 20 in front in the pack row 70.
  • the side flap 37 on the back in the conveying direction is folded over (FIG. 5).
  • Upper flaps 38 and lower flaps 39 are folded during the further transport of the row of containers 70 by fixed, immovable folding members of a known type, namely by so-called folding switches (not shown). These are designed as fixed walls, which are arranged laterally next to the path of movement of the container 20 and by the curved design of a folded edge during the Fold the movement of the containers 20 one after the other overlap 38 and underlap 39.
  • the side surface is sealed by a plate-shaped sealing tool 82, namely the overlapping regions of upper lobe 38 and lower lobe 39 with one another.
  • the container 20 is then completed. It can now be removed in a suitable manner via a fixed removal conveyor 83.
  • the side folders 69 are mounted in a similar manner to the upper folder 71 and the lower folder 73.
  • a support profile 90 extends transversely below the web plate 53. Upright angle profiles are attached to the ends of the latter, each of which accommodates the parallelepiped-shaped side folder 69. The support profile 90 is driven back and forth below the web plate 53 in the direction of movement of the container 20.
  • the folding, conveying and sealing elements described above form a (complete) set 40, 41 of packaging elements.
  • the sets 40, 41 can be modified with regard to the type and number of packaging elements.
  • the packaging elements to be exchanged for changing the format of the packaging (bundle 20) to be produced are arranged on a common carrier, namely on the web plate 53.
  • the plate-shaped top web 50 is also connected to the organs attached thereto, in particular the pivoting slide 49 .
  • the common carrier (web plate 53) is easily removable and mounted on holding members in the packaging station 42. It is the horizontally directed support rods 48 connected to the cross member 47, on which the track plate 53 with bearing pieces arranged on the underside thereof 84 displaceable and therefore removable, is stored. To replace a complete set 40, 41, the web plate 53 is pulled down from the support rods 48 in the area of the exchange station 44 and exchanged for another set.
  • the movable packaging members of a set 40, 41 are automatically coupled to stationary, non-exchangeable drives when a set 40, 41 is exchanged or when it is moved into the packaging position 43.
  • drive elements 85, 86, 87 for various movable packaging elements are arranged on the machine frame or on the drive housing 46 on the upper side.
  • these drive members 85, 86, 87 consist of drive pieces 88, which are slidably displaceable on (two) fixed slide rods 89.
  • the drive pieces 88 are driven by gears, for example cams, inside the drive housing 46.
  • the drive elements shown here are assigned to the pusher 63 (drive element 85), the side folders 69 (drive element 86) and the sealing tools 82 (drive element 87).
  • lifting members 91 are provided, which are also mounted on or on the drive housing 46 and can be moved up and down (FIGS. 15, 16). Such a lifting member 91 is assigned to the upper folder 71 and the lower folder 73.
  • a lifting rod 92 is provided with a coupling head 93 at the upper end. This is automatically coupled by the movement of a set 40, 41 into and out of the packaging position 43 with the packaging member to be actuated.
  • a rotatable coupling roller 94 is attached to the packaging member for this purpose. This enters a link guide 95 on the side of the coupling head 93. As can be seen from FIG. 16, a positive connection for the transmission of drive movements is thus created in the working position of the packaging members.
  • the couplings for the drive members 85, 86, 87 are also designed in an analogous manner.
  • the transport of the bundles 20 or groups 30 after leaving the lifting platform 51 takes place under an upper guide in the form of a web cover 96. This extends from the range of movement of the lifting platform 51 to the completion of the bundles 20 with a distance of corresponding to the exact dimensions of the bundles 20 the web plate 53. Openings in the web cover 96 are provided for the passage of folding members etc.
  • the film apparatus 66 with separating knife 57 and conveyor rollers is fixedly connected to the support column 45 in the present exemplary embodiment and therefore always remains in the packaging position 43.
  • the film apparatus 66 can be arranged interchangeably or can be rotated with the movable sets 40, 41. This makes it possible to provide two different versions of the film apparatus. With the change of the set 40, 41, the film apparatus can also be changed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Description

Die Erfindung betrifft ein Verfahren zum Verpacken von Gegenständen, insbesondere Gruppen von Kleinpackungen, wie Papier-Taschentuch-Packungen, in eine Umhüllung aus Folie, mit folgenden Merkmalen:

  • Der Gegenstand wird auf einer Bahn gefördert,
  • dabei wird ein Zuschnitt zur Bildung der Umhüllung U-förmig derart um den Gegenstand herumgelegt, daß ein längerer Längslappen und ein kürzerer Längslappen des Zuschnitts entstehen,
  • der längere Längslappen wird gegen eine Rückseite des Gegenstands gefaltet und an den kürzeren Längslappen unter Bildung eines Randstreifens angelegt,
  • die beiden Längslappen werden im Bereich des Randstreifens gegeneinander gesiegelt,
  • der Randstreifen wird gegen die Rückseite des Gegenstands bzw. der Umhüllung gefaltet. Weiterhin betrifft die Erfindung eine Vorrichtung zum Verpacken von Gegenständen.
The invention relates to a method for packaging objects, in particular groups of small packs, such as paper handkerchief packs, in a wrapping made of film, having the following features:
  • The object is conveyed on a track,
  • a blank is formed around the object to form the envelope in a U-shape such that a longer longitudinal tab and a shorter longitudinal tab of the blank are created,
  • the longer longitudinal flap is folded against a back of the object and placed on the shorter longitudinal flap to form an edge strip,
  • the two longitudinal tabs are sealed against each other in the area of the edge strip,
  • the edge strip is folded against the back of the item or wrapper. Furthermore, the invention relates to a device for packaging objects.

Die Erfindung befaßt sich mit aus Kunststoff-Folie bestehenden Weichpackungen, nämlich Papier-Taschentuch- Packungen, die sich durch eine ebenfalls aus Kunststoff-Folie bestehende äußere Umhüllung zu einem Gebinde (Großpackung) aus mehreren dieser Kleinpackungen verpacken lassen. Das Gebinde kann aus sechs, acht, zehn, zwölf, achtzehn oder mehr Kleinpackungen (Papier-Taschentuch-Packungen) bestehen.The invention relates to soft packs consisting of plastic film, namely paper handkerchief packs which can be packaged into a container (large pack) from several of these small packs by means of an outer wrapping likewise made of plastic film. The container can consist of six, eight, ten, twelve, eighteen or more small packs (paper handkerchief packs).

Bei den bisher bekannten Gebinden werden die überstehenden Längslappen gegen die Rückseite einer Gruppe von Kleinpackungen gefaltet, wobei sich der obere mit dem unteren Längslappen in einem Endbereich desselben überlappt. In diesem Bereich vollzieht sich die Siegelung in der Weise, daß von außen Druck und Wärme in Richtung auf die Packung ausgeübt werden. Es läßt sich beim Versiegeln dieser äußeren Umhüllung jedoch nicht ausschließen, daß zusätzlich eine Verbindung derselben mit einer Kunststoff-Folie der Kleinpackungen eintritt. Um das Risiko des Auftretens dieser zusätzlichen Verbindung zwischen Außenfolie und Folien verschiedener Kleinpackungen zu verringern, wurde bislang für die Außenfolie ein erheblich teureres Kunststoffmaterial verwendet.In the previously known containers, the protruding longitudinal tabs are folded against the back of a group of small packs, the upper and the lower longitudinal tabs overlapping in an end region thereof. In this area the sealing takes place in such a way that pressure and heat are exerted from the outside towards the package. When sealing this outer wrapper, however, it cannot be ruled out that an additional connection of the same with a plastic film of the small packs occurs. In order to reduce the risk of this additional connection occurring between the outer film and films of different small packs, a considerably more expensive plastic material has been used for the outer film.

Aus der CH-A-426 609 ist ein Verfahren zum Einschlagen von Schokoladentafeln bekannt. Der Oberbegriff des Anspruchs 1 entspricht diesem Stand der Technik. Eine Einwickelfolie wird bei Bewegung einer Tafel U-förmig um diese herumgelegt. Es sind Faltorgane vorhanden, die gegen die Förderrichtung überstehende Längslappen unter Bildung eines Randstreifens miteinander versiegeln. Dabei wird der Randstreifen in Höhe der Oberseite des Gegenstandes gebildet. Für die Faltung dickerer Gegenstände müssen die Faltorgane neu justiert werden. Der Randstreifen wird nicht an die Rückseite angesiegelt.A method for wrapping chocolate bars is known from CH-A-426 609. The preamble of claim 1 corresponds to this prior art. A wrapping film is placed around a U-shaped sheet when it moves. There are folding members which seal longitudinal tabs projecting against the conveying direction with one another to form an edge strip. The edge strip is formed at the top of the object. The folding elements must be readjusted for folding thicker objects. The edge strip is not sealed to the back.

Aufgabe der vorliegenden Erfindung ist es, die Zuverlässigkeit des Faltvorganges weiter zu steigern und trotzdem eine einfache Formatumstellung zu ermöglichen.The object of the present invention is to further increase the reliability of the folding process and still enable a simple format change.

Zur Lösung dieser Aufgabe ist das erfindungsgemäße Verfahren durch folgende Merkmale gekennzeichnet:

  • Der Zuschnitt wird quer zur Förderrichtung des Gegenstandes und der Höhe nach zur Bahn versetzt bereitgehalten,
  • die Breite des Zuschnitts ist so bemessen, daß zu beiden Seiten der Gruppe ein Überstand zur Bildung von Faltlappen gegeben ist,
  • durch die Förderbewegung des Gegenstands mit dem sich U-förmig um den Gegenstand herumlegenden Zuschnitt werden vordere Seitenlappen der seitlichen Überstände des Zuschnitts als Teil von Seitenwänden der Umhüllung gegen Seitenflächen des Gegenstands gefaltet,
  • der kürzere Längslappen ist zugleich der untere Längslappen und der längere Längslappen ist der obere Längslappen, so daß der Randstreifen in der Ebene der Bahn bzw. des unteren Längslappens zu liegen kommt,
  • der Randstreifen wird nach dem Anlegen an die Rückseite des Gegenstands mit dieser durch Siegeln verbunden,
  • danach werden seitliche Überstände des Zuschnitts im Bereich des Längslappens einschließlich des umgefalteten Randstreifens unter Bildung des rückwärtigen Seitenlappens gegen die Seitenflächen der Gruppe gefaltet,
  • schließlich werden untere und obere Faltlappen, nämlich Oberlappen und Unterlappen der seitlichen Überstände des Zuschnitts gegen die Seitenlappen gefaltet.
To achieve this object, the method according to the invention is characterized by the following features:
  • The blank is held at right angles to the conveying direction of the object and the height of the web,
  • the width of the blank is such that there is an overhang on both sides of the group for the formation of folding flaps,
  • by means of the conveying movement of the object with the blank which lies around the object in a U-shape, front side flaps of the side projections of the blank are folded as part of side walls of the wrapping against side surfaces of the object,
  • the shorter longitudinal lobe is also the lower longitudinal lobe and the longer longitudinal lobe is the upper longitudinal lobe, so that the edge strip comes to lie in the plane of the web or the lower longitudinal lobe,
  • the edge strip is connected to the back of the object by sealing it,
  • then lateral protrusions of the blank in the area of the longitudinal flap including the folded-over edge strip are folded against the side surfaces of the group, forming the rear side flap,
  • finally, lower and upper folding tabs, namely top tabs and bottom tabs of the side projections of the blank are folded against the side tabs.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß beim Versiegeln der äußeren Umhüllung keine Wärme und kein Druck auf die Innenpackung ausgeübt wird. Statt dessen wird die Versiegelung durch Wärme und Druck rückseitig neben der Gruppe von Kleinpackungen in Verlängerung einer Längsseite derselben vorgenommen. Der aus der Versiegelung von oberem und unterem Seitenlappen hervorgegangene und durch diese gebildete Randstreifen wird anschließend gegen die Umhüllung herumgefaltet und mit dieser versiegelt. Sowohl für die äußere Umhüllung als auch für die innere Umhüllung kann das gleiche Material verwendet werden.The advantages achieved by the invention are, in particular, that no heat and no pressure is exerted on the inner pack when the outer casing is sealed. Instead, the sealing is carried out by heat and pressure on the back next to the group of small packs in an extension of one long side of the same. The edge strip that emerges from the sealing of the upper and lower side tabs and is formed by them is then folded around against the envelope and sealed with it. The same material can be used for both the outer wrapper and the inner wrapper.

Eine Vorrichtung zum Verpacken von Gegenständen gemäß dem Oberbegriff des Anspruchs 3 (bekannt aus der CH-A-426 609) ist durch folgend Merkmale gekennzeichnet:

  • Der Unterfalter ist zum Siegeln des Randstreifens in der Förderebene der Bahn angeordnet,
  • entsprechend ist der Oberfalter zum Falten des oberen Längslappens und zum Siegeln des Randstreifens bis in die Förderebene der Bahn hinabbewegbar,
  • der Unterfalter ist zum Anlegen und Siegeln des Randstreifens an die Rückseite des Gegenstands aufwärts bewegbar,
  • zum Falten von in Bewegungsrichtung des Gegenstands vornliegenden Seitenlappen und rückseitigen Seitenlappen sind Seitenfalter vorgesehen,
  • zum Falten seitlich über den Gegenstand überstehender Oberlappen und Unterlappen sind weitere Faltorgane vorgesehen.
A device for packaging objects according to the preamble of claim 3 (known from CH-A-426 609) is characterized by the following features:
  • The sub-folder is arranged to seal the edge strip in the conveyor plane of the web,
  • the upper folder can accordingly be moved down to the conveying plane of the web for folding the upper longitudinal flap and for sealing the edge strip,
  • the lower folder can be moved upwards to apply and seal the edge strip on the back of the object,
  • Side folders are provided for folding side flaps and rear side flaps lying in the direction of movement of the object,
  • for folding laterally over the object overlapping upper lobes and lower lobes further folding organs are provided.

Der Unterfalter ist als Siegelorgan ausgebildet und befindet sich an der Rückseite der Gruppe neben derselben. Er ist auf- und abbewegbar und kann somit zum Versiegeln auch verschiedener Packungsgrößen verwendet werden. Darüber hinaus faltet der Unterfalter durch Aufwärtsbewegen den Randstreifen bis zur Anlage an die Außenumhüllung. Durch diese Doppelfunktion eines Organs brauchen beim Formatwechsel nur relativ wenige Verpackungsorgane ausgetauscht werden.The lower butterfly is designed as a sealing organ and is located on the back of the group next to it. It can be moved up and down and can therefore be used to seal different pack sizes. In addition, the underfold folds the edge strip up to the contact with the outer wrapper by moving it upwards. This double function of an organ means that only a relatively small number of packaging elements need to be replaced when the format is changed.

Neben diesen Verpackungsorganen sind weitere Faltorgane vorhanden, um Seitenfaltungen herzustellen.In addition to these packaging elements, there are additional folding elements to produce side folds.

Weitere Merkmale der Erfindung betreffen das Verfahren sowie die Vorrichtung zum Verpacken von Gegenständen und sind den Unteransprüchen zu entnehmen.Further features of the invention relate to the method and the device for packaging objects and can be found in the subclaims.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen näher erläutert. Es zeigt:

Fig. 1
eine Anlage zur Herstellung und Verpackung von Papier-Taschentüchern ("Linie") im schematischen Grundriß,
Fig. 2 bis Fig. 6
verschiedene Faltstellungen der Außenumhüllung einer Großpackung (Gebinde) in perspektivischer Darstellung,
Fig. 7
eine Eckausbildung in der Faltstellung gemäß Fig. 3 in stark vergrößertem Maßstab,
Fig. 8
eine Vorrichtung (Verpackungsmaschine) für die Herstellung von Großpackungen (Gebinden) in perspektivischer Ansicht,
Fig. 9
eine Seitenansicht zu der Vorrichtung gemäß Fig. 8,
Fig. 10
eine gegenüber Fig. 9 um 90° versetzte Ansicht der Vorrichtung gemäß Fig. 8 und 9,
Fig. 11
eine perspektivische Darstellung der Vorrichtung gemäß Fig. 8 bis 10 bei abgenommenen Teilen,
Fig. 12
Einzelheiten der Vorrichtung in einer Darstellung entsprechend Fig. 8, bei vergrößertem Maßstab,
Fig. 13
eine Einzelheit der Vorrichtung, nämlich eine Hubbühne, in perspektivischer Darstellung, vergrößert,
Fig. 14
ein weiteres Detail, nämlich ein Falt- und Siegelwerkzeug, ebenfalls in perspektivischer Darstellung, vergrößert,
Fig. 15
eine kuppelbare Antriebsverbindung für Teile der Vorrichtung in perspektivischer Darstellung,
Fig. 16
die Einzelheiten gemäß Fig. 15 in eingekuppelter Stellung.
An embodiment of the invention is explained below with reference to the drawings. It shows:
Fig. 1
a plant for the production and packaging of paper handkerchiefs ("line") in a schematic plan,
2 to 6
different folding positions of the outer wrapping of a large package (container) in perspective,
Fig. 7
3 in a greatly enlarged scale,
Fig. 8
a device (packaging machine) for the production of large packs (containers) in a perspective view,
Fig. 9
8 shows a side view of the device according to FIG. 8,
Fig. 10
9 is a 90 ° offset view of the device according to FIGS. 8 and 9,
Fig. 11
8 to 10 with parts removed,
Fig. 12
Details of the device in a representation corresponding to FIG. 8, on an enlarged scale,
Fig. 13
a detail of the device, namely a lifting platform, in a perspective view, enlarged,
Fig. 14
another detail, namely a folding and sealing tool, also in perspective, enlarged,
Fig. 15
a detachable drive connection for parts of the device in a perspective view,
Fig. 16
the details of FIG. 15 in the engaged position.

Die in den Zeichnungen dargestellten Ausführungsbeispiele befassen sich mit der Herstellung von Großpackungen, sogenannten Gebinden 20 aus einer Mehrzahl von Kleinpackungen 21, im vorliegenden Falle Papier-Taschentuch-Packungen. Die Gebinde 20 werden durch eine hierfür eingerichtete Verpackungsmaschine, einem Gebindepacker 22, hergestellt. Dieser ist Teil einer Fertigungs- und Verpackungsanlage für Papier-Taschentücher, einer "Linie". Sie besteht aus einer Falzmaschine 23, einer Taschentuch-Verpackungsmaschine 24, einem dieser nachgeordneten Tape-Aggregat 25 zum Anbringen eines Verschlußstreifens an der Kleinpackung 21, einem Stapelkopf 26, dem nachfolgenden Gebindepacker 22 und einem hieran anschließenden Kartonpacker 27.The exemplary embodiments shown in the drawings deal with the production of large packs, so-called containers 20, from a plurality of small packs 21, in the present case paper handkerchief packs. The containers 20 are set up for this purpose Packaging machine, a pack packer 22, manufactured. This is part of a manufacturing and packaging system for paper handkerchiefs, a "line". It consists of a folding machine 23, a handkerchief packaging machine 24, one of these downstream tape units 25 for attaching a sealing strip to the small package 21, a stacking head 26, the subsequent packer 22 and a carton packer 27 connected to it.

Die Kleinpackungen 21 (Taschentuch-Packungen) werden bei dem vorliegenden Ausführungsbeispiel in zwei Bahnen gefertigt. Im Bereich des Stapelkopfes 26 wird eine gemeinsame Packungsreihe 28 aus gegebenenfalls mehreren übereinander angeordneten Kleinpackungen 21 gebildet. Diese wird dem Gebindepacker 22 durch einen Zuförderer 29 zugeführt.The small packs 21 (handkerchief packs) are produced in two lines in the present exemplary embodiment. In the area of the stacking head 26, a common row of packs 28 is formed from possibly several small packs 21 arranged one above the other. This is fed to the packer 22 by a feed conveyor 29.

Die Großpackungen (Gebinde 20) können unterschiedliche Abmessungen aufweisen, je nach der Anzahl der Kleinpackungen 21 je Gebinde 20. Kleine Gebinde 20 bestehen aus sechs Kleinpackungen 21, große Gebinde 20 enthalten z. B. vierundzwanzig Kleinpackungen 21. Diese sind zu einer regelmäßigen Gruppe 30 formiert aus neben- und übereinander ausgerichteten Kleinpackungen 21. Das Gebinde 20 wird durch eine Umhüllung 31 aus Kunststoffolie gebildet.The large packs (packs 20) can have different dimensions, depending on the number of small packs 21 per pack 20. Small packs 20 consist of six small packs 21, large packs 20 contain z. B. twenty-four small packs 21. These are formed into a regular group 30 of small packs 21 which are aligned next to and above one another. The container 20 is formed by a covering 31 made of plastic film.

Der Gebindepacker 22 ist so ausgebildet, daß durch Auswechseln von Verpackungsorganen Gebinde 20 unterschiedlicher Größe gefahren werden können. Verpackungsorgane sind dabei Faltorgane für die Umhüllung 31, Schieber für den Transport der Gruppen 30, Förderorgane für Folienbahnen und Siegelorgane. Die Anzahl und Art der Verpackungsorgane ergibt sich aus der Gestaltung des Gebindes 20 bzw. den Schritten für die Herstellung der Umhüllung 31.The pack packer 22 is designed in such a way that packs 20 of different sizes can be moved by replacing packaging elements. Packaging organs are folding organs for the wrapping 31, sliders for the transport of the groups 30, conveying organs for film webs and sealing organs. The number and type of packaging elements result from the design of the container 20 or the steps for the production of the wrapper 31.

Bei dem vorliegenden Ausführungsbeispiel wird die Umhüllung 31 in besonderer Weise gefaltet und führt zu einem in bezug auf die Umhüllung 31 besonderen Gebinde 20. Die Faltfolge ist in Fig. 2 bis Fig. 6 dargestellt.In the present exemplary embodiment, the wrapping 31 is folded in a special way and leads to a container 20 that is special with respect to the wrapping 31. The folding sequence is shown in FIGS. 2 to 6.

Ein Zuschnitt für die Umhüllung 31 wird in vertikaler Ebene bereitgehalten und U-förmig um den Inhalt (Gruppe 30) herumgefaltet, und zwar durch Förderung der Gruppe 30 durch die Ebene des Zuschnitts hindurch. Dadurch an der Rückseite der Gruppe 30 zunächst überstehende, horizontal gerichtete Längslappen 32, 33 haben unterschiedliche Längen. Der obere Längslappen 32 ist so bemessen, daß die nach rückwärts weisende Längsseite des Gebindes 20 bzw. der Gruppe 30 auf voller Höhe abgedeckt wird. Dieser Längslappen 32 wird gegen die Rückseite der Gruppe 30 in die aufrechte Position gefaltet (Fig. 3). Ein unterer Randlappen 34 des Längslappens 32 wird bei diesem Faltvorgang auf die Oberseite des entsprechend bemessenen unteren Längslappens 33 aufgelegt und mit diesem durch Wärme und Druck versiegelt (Fig. 3 sowie Detail in Fig. 7). Ein dadurch gebildeter doppellagiger Randstreifen 35 wird sodann in eine aufrechte Position gefaltet bis zur Anlage an der Seitenfläche bzw. am oberen Längslappen 32 (Faltstellung gemäß Fig. 4).A blank for the wrapper 31 is held ready in the vertical plane and folded in a U shape around the contents (group 30) by conveying the group 30 through the plane of the blank. As a result, horizontally directed longitudinal tabs 32, 33 which initially protrude at the rear of group 30 have different lengths. The upper longitudinal tab 32 is dimensioned such that the rearward-facing long side of the container 20 or the group 30 is covered at full height. This longitudinal tab 32 is folded against the back of the group 30 in the upright position (Fig. 3). In this folding process, a lower edge tab 34 of the longitudinal tab 32 is placed on the upper side of the correspondingly dimensioned lower longitudinal tab 33 and sealed with it by heat and pressure (FIG. 3 and detail in FIG. 7). A double-layered edge strip 35 formed in this way is then folded into an upright position until it rests on the side face or on the upper longitudinal tab 32 (folded position according to FIG. 4).

Im Bereich von Seitenflächen des Gebindes 20 stehen (zunächst) Faltlappen über die Gruppe 30 hinweg. Vordere Seitenlappen 36 und rückwärtige Seitenlappen 37 werden nacheinander gegen die Seitenfläche der Gruppe 30 gefaltet. Während des Transports der Gruppe 30 mit Umhüllung 31 wird der vordere Seitenlappen 36 gefaltet (Fig. 2). Erst später, nämlich nach Fertigstellung der rückseitigen Wandung der Umhüllung 31, wird durch entsprechende Bewegung eines Faltorgans der rückseitige Seitenlappen 37 gefaltet (Fig. 5). Sodann werden (dreieckförmige) Oberlappen 38 und Unterlappen 39 zur Anlage an den Seitenflächen bzw. an den Seitenlappen 36, 37 umgefaltet (Fig. 6). Oberlappen 38 und Unterlappen 39 einerseits sowie Seitenlappen 36 und 37 andererseits werden durch Wärme und Druck miteinander versiegelt.In the area of side surfaces of the bundle 20 there are (initially) folding tabs over the group 30. Front side flaps 36 and rear side flaps 37 are successively folded against the side surface of group 30. During the transport of the group 30 with the wrapping 31, the front side tab 36 is folded (FIG. 2). Only later, namely after completion of the rear wall of the envelope 31, is the rear side tab 37 folded by corresponding movement of a folding member (FIG. 5). Then (triangular) upper lobes 38 and lower lobes 39 are folded over to rest against the side surfaces or on the side lobes 36, 37 (FIG. 6). Upper lobe 38 and lower lobe 39 on the one hand and Side tabs 36 and 37, on the other hand, are sealed together by heat and pressure.

Die für diesen Falt- und Siegelvorgang erforderlichen Mittel bilden zusammen einen kompletten Satz der Verpackungsorgane. Dem Gebindepacker 22 sind mehrere Sätze von Verpackungsorganen zugeordnet, wobei diese zur Anpassung an unterschiedliche Formate der Gebinde 20 zweckmäßigerweise komplett austauschbar sind.The means required for this folding and sealing process together form a complete set of packaging elements. The bundle packer 22 is assigned a plurality of sets of packaging members, these being expediently completely interchangeable to adapt to different formats of the bundles 20.

Der hier dargestellte und beschriebene Gebindepacker 22 ist für die Aufnahme von zwei Sätzen 40, 41 der Verpackungsorgane eingerichtet. Diese Sätze 40 und 41 befinden sich in einer Verpackungsstation 42. Jeweils einer der Sätze, bei dem in Fig. 1 gezeigten Beispiel der Satz 40, befindet sich in der Verpackungsstellung 43. Dieser werden die Kleinpackungen 21 bzw. die Gruppen 30 zugeführt.The pack packer 22 shown and described here is set up to accommodate two sets 40, 41 of the packaging members. These sets 40 and 41 are located in a packaging station 42. Each of the sets, in the example shown in FIG. 1, the set 40 is located in the packaging position 43. The small packages 21 or the groups 30 are fed to this.

Bei dem vorliegenden Ausführungsbeispiel sind die Sätze 40 und 41 abnehmbar mit einer verstellbaren Tragvorrichtung, nämlich einem Drehwerk verbunden, welches die Sätze 40, 41 durch Drehbewegung alternativ in die Verpackungsstellung 43 oder in eine Auswechselstellung 44 bewegt. Im Bereich der letztgenannten werden die Verpackungsorgane des Satzes 41 vorzugsweise komplett als Einheit ausgetauscht.In the present exemplary embodiment, the sets 40 and 41 are detachably connected to an adjustable carrying device, namely a rotating mechanism, which alternatively moves the sets 40, 41 into the packaging position 43 or into an exchange position 44 by rotating movement. In the area of the latter, the packaging members of the set 41 are preferably completely replaced as a unit.

Das Drehwerk besteht hier aus einer aufrechten Tragsäule 45, die fest mit einem Maschinengestell bzw. einem Antriebsgehäuse 46 verbunden ist. Auf der Tragsäule 45 ist eine Traverse 47 drehbar gelagert. An den Enden derselben sind Halterungen für die Sätze 40, 41 angebracht, nämlich quergerichtete Tragstangen 48. Auf diesen horizontal gerichteten, mit der Traverse 47 um die Tragsäule 45 drehbaren Tragstangen sind die Verpackungsorgane der Sätze 40, 41 abnehmbar, nämlich abziehbar, angebracht.The slewing gear here consists of an upright support column 45 which is firmly connected to a machine frame or a drive housing 46. A cross member 47 is rotatably mounted on the support column 45. At the ends thereof, holders for the sets 40, 41 are attached, namely transverse support rods 48. The packaging members of the sets 40, 41 are removable, namely removable, attached to these horizontally oriented support rods, which can be rotated about the support column 45 with the cross member 47.

Die Packungsreihe 28 wird etwa mittig zur Verpackungsstation 42 dieser zugeführt. Der Zuförderer 29 ist im vorliegenden Falle mittig zur Tragsäule 45 ausgerichtet. Eine der Größe des Gebindes entsprechende Anzahl von Kleinpackungen 21 - zu mehreren übereinander angeordnet - wird durch einen quer bewegbaren, längs eines Viertelkreises wirkenden Schwenkschieber 49 erfaßt und längs eines Vierteilkreises auf einer plattenförmigen Oberbahn 50 in die Verpackungsstellung 43 gefördert. Der Schwenkschieber 49 ist mit einer die Oberbahn 50 bildenden Platte verbunden.The pack row 28 is fed to the packing station 42 approximately in the middle. In the present case, the feed conveyor 29 is centered on the support column 45. A number of small packs 21 corresponding to the size of the bundle - arranged in a plurality above one another - is detected by a transversely movable swivel slide 49 acting along a quarter circle and conveyed along a four-part circle on a plate-shaped top track 50 into the packaging position 43. The pivoting slide 49 is connected to a plate forming the upper track 50.

Am Ende der Oberbahn 50 gelangt die Gruppe 30 der Kleinpackungen 21 in den Bereich einer Hubbühne 51. Deren wichtigste Aufgabe besteht darin, die Gruppe aus der Ebene der Oberbahn 50 abzusenken auf das Niveau einer Hauptbahn 52. Diese besteht aus einer der Höhe nach gegenüber der Oberbahn 50 versetzten Bahnplatte 53. Auf der Hauptbahn 52 sind die Verpackungsorgane angeordnet bzw. wirksam.At the end of the upper track 50, the group 30 of the small packs 21 reaches the area of a lifting platform 51. Their most important task is to lower the group from the level of the upper track 50 to the level of a main track 52. This consists of a height opposite the Upper web 50 offset web plate 53. The packaging elements are arranged or effective on the main web 52.

Die Hubbühne 51 besteht aus einer Plattform 54, auf der die Gruppe 30 durch den Schwenkschieber 49 aufgeschoben wird. Die Plattform 54 wird durch drei Teilplattformen gebildet, die auf einem unteren, quergerichteten Tragprofil 55 abgestützt sind. Die Oberseite der Hubbühne 51 wird durch einen Plattformdeckel 56 gebildet, der sich auf die Oberseite der Gruppe 30 auflegt. Der Plattformdeckel 56 ist mit einer oberen Querstange 57 verbunden. Diese sowie das untere Tragprofil 55 sind durch aufrechte Führungsstangen 58 miteinander verbunden. Die Führungsstangen 58 sind in feststehenden Gleitlagern 59 an der Bahnplatte 53 auf- und abbewegbar.The lifting platform 51 consists of a platform 54 on which the group 30 is pushed by the pivoting slide 49. The platform 54 is formed by three sub-platforms, which are supported on a lower, transverse support profile 55. The top of the lifting platform 51 is formed by a platform cover 56, which lies on the top of the group 30. The platform cover 56 is connected to an upper cross bar 57. These and the lower support profile 55 are connected to one another by upright guide rods 58. The guide rods 58 can be moved up and down in fixed slide bearings 59 on the track plate 53.

Eine weitere Besonderheit der Hubbühne 51 besteht darin, daß deren Seitenwände 60 querbewegbar sind, um einen seitlichen Druck auf die Kleinpackungen 21 der Gruppe 30 auszuüben. Dadurch ist es möglich, die Gruppe 30 als Inhalt des Gebindes 20 auf eine exakte, stets wiederkehrende Abmessung einzustellen. Die Seitenwände 60 sind zu diesem Zweck schwenkbar gelagert an Schwenkarmen 61, die über ein Schwenklager 62 mit dem unteren Tragprofil 55 verbunden sind. Bei der Aufnahme einer Gruppe 30 sind die Seitenwände 60 auseinanderbewegt. Danach werden die Seitenwände 60 aufeinanderzubewegt unter Zusammendrücken der Kleinpackungen 21.Another special feature of the lifting platform 51 is that its side walls 60 can be moved transversely in order to exert a lateral pressure on the small packs 21 of the group 30. This makes it possible to set the group 30 as the content of the container 20 to an exact, constantly recurring dimension. The side walls 60 are to this Purpose pivoted on pivot arms 61 which are connected to the lower support profile 55 via a pivot bearing 62. When a group 30 is received, the side walls 60 are moved apart. The side walls 60 are then moved towards one another by compressing the small packs 21.

In der oberen Ausgangsstellung (Fig. 12) ist die Hubbühne 51 mit der Plattform 54 auf die Oberbahn 50 ausgerichtet. Nach Aufnahme der Gruppe 30 wird die Hubbühne 51 abgesenkt, bis die Plattform 54 auf die Hauptbahn 52 ausgerichtet ist.In the upper starting position (FIG. 12), the lifting platform 51 is aligned with the platform 54 on the upper track 50. After group 30 has been taken up, the lifting platform 51 is lowered until the platform 54 is aligned with the main track 52.

In dieser unteren Stellung der Bühne 51 wird die Gruppe 30 ausgestoßen, und zwar durch einen Abschieber 63. Dieser tritt durch die Hubbühne 51 hindurch unter Mitnahme der Gruppe 30. Der Abschieber 63 wird durch Schieberstangen 64 geführt, die sich unterhalb der Bahnplatte 53 befinden, während sich der Abschieber 63 selbst oberhalb derselben bewegt.In this lower position of the stage 51, the group 30 is ejected, specifically by a pusher 63. This passes through the lifting platform 51, taking the group 30 with it. The pusher 63 is guided by pushrods 64, which are located below the track plate 53, while the pusher 63 itself moves above it.

Die Gruppe 30 tritt beim Verlassen der Hubbühne 51 durch die Ebene einer Folienbahn 65 hindurch. Diese wird in aufrechter Ebene durch einen Folienapparat 66 bereitgehalten. Die Folienbahn 65 wird durch die Gruppe 30 mitgenommen, wobei ein abgemessener Zuschnitt zur Bildung der Umhüllung 31 durch Trennmesser 67 von der Folienbahn 65 abgetrennt wird. Der Zuschnitt legt sich U-förmig um die Gruppe 30 herum und wird sodann in der oben beschriebenen Weise gefaltet (Fig. 2 - 6).The group 30 passes through the level of a film web 65 when leaving the lifting platform 51. This is held ready in an upright plane by a film apparatus 66. The film web 65 is carried along by the group 30, a metered blank for forming the covering 31 being separated from the film web 65 by separating knives 67. The blank wraps around the group 30 in a U-shape and is then folded in the manner described above (FIGS. 2-6).

Diese Faltung erfolgt im Bereich einer Faltstation 68. Während der Förderbewegung der Gruppe 30 mit Umhüllung 31 werden die in Bewegungsrichtung vornliegenden Seitenlappen 36 durch Seitenfalter 69 zu beiden Seiten der Bewegungsbahn der Gruppe 30 gefaltet. Die Seitenfalter werden zu diesem Zweck aus einer vornliegenden Position der Gruppe 30 entgegenbewegt, bis in den Bereich der Seitenlappen 36. Diese werden durch die Seitenfalter 69 gefaltet, wobei anschließend die Seitenfalter 69 mit der Gruppe 30 weitergefördert werden.This folding takes place in the area of a folding station 68. During the conveying movement of group 30 with wrapping 31, side flaps 36 lying in the direction of movement are folded by side folders 69 on both sides of the movement path of group 30. For this purpose, the side folders are moved from a forward position of the group 30 into the region of the side tabs 36. These are folded by the side folders 69, the side folders 69 then being conveyed further with the group 30.

Die Gruppe 30 mit Umhüllung 31 (und mit den sich in Faltstellung befindenden Seitenfalter 69) wird bis zur Anlage an eine Gebindereihe 70 aus bereits weitgehend fertiggefalteten Gebinden 20 gefördert unter Weiterbewegung der Gebindereihe 70 um einen Bewegungstakt entsprechend der Abmessung eines Gebindes 20. Der Abschieber 63 kehrt sodann in die Ausgangsstellung zurück.The group 30 with the wrapping 31 (and with the side folders 69 in the folded position) is conveyed from the already largely fully-folded containers 20 until it abuts against a container row 70, with the container row 70 continuing to move by one movement stroke corresponding to the dimension of a container 20. The pusher 63 then returns to the starting position.

Die Seitenfalter 69 zu beiden Seiten der Gebinde 20 werden währenddessen in der zur Bewegung der Gebinde 20 entgegengesetzten Richtung weiterbewegt, wobei die Seitenfalter 69 an der noch nicht gefalteten Rückseite der Umhüllung 31 aus den Bereich der Gruppe 30 austreten (Position gemäß Fig. 2).The side folders 69 on both sides of the container 20 are moved in the opposite direction to the movement of the container 20, the side folder 69 emerging from the area of the group 30 on the not yet folded back of the wrapper 31 (position according to FIG. 2).

Nun kann die Faltung der Längslappen 32, 33 unter Bildung des Randstreifens 35 erfolgen (Faltvorgänge gemäß Fig. 3 und 4). Für die Abwärtsfaltung des oberen Längslappens 32 ist ein Oberfalter 71 vorgesehen, der hier aus einer verhältnismäßig dünnen Wandung besteht mit einem unteren abgewinkelten Schenkel 72. Dieser drückt den Randlappen 32 auf den unteren, abstehenden Längslappen 33.Now the longitudinal flaps 32, 33 can be folded to form the edge strip 35 (folding processes according to FIGS. 3 and 4). An upper folder 71 is provided for the downward folding of the upper longitudinal tab 32, which here consists of a relatively thin wall with a lower angled leg 72. This presses the edge tab 32 onto the lower, projecting longitudinal tab 33.

Der Längslappen 33 liegt dabei auf einem Unterfalter 73 auf, der zugleich als Siegelwerkzeug dient und deshalb beheizbar ist. Der Unterfalter 73 ist als winkelförmiges Profilstück ausgebildet (Fig. 14). In der Ausgangsstellung liegt der etwa horizontal gerichtete Randstreifen 35 auf einem aufwärtsgerichteten Schenkel 74 des Unterfalters 73 auf. Nach Verbindung des Randlappens 34 mit dem Längslappen 33 wird der Randstreifen 35 durch Aufwärtsbewegung des Unterfalters 73 gegen die rückwärtige Längsfläche der Umhüllung 31 bzw. gegen den Längslappen 32 gedrückt und mit diesem versiegelt.The longitudinal tab 33 rests on a lower folder 73, which also serves as a sealing tool and is therefore heatable. The lower folder 73 is designed as an angular profile piece (FIG. 14). In the starting position, the approximately horizontally directed edge strip 35 lies on an upward leg 74 of the lower folder 73. After connecting the edge tab 34 to the longitudinal tab 33, the edge strip 35 is pressed by the upward movement of the lower folder 73 against the rear longitudinal surface of the envelope 31 or against the longitudinal tab 32 and sealed with it.

Oberfalter 71 und Unterfalter 73 sind lediglich auf- und abbewegbar. Der Oberfalter 71 ist über Haltestangen 75 mit einem sich oberhalb der Faltstation 68 quer erstreckenden Tragprofil 76 verbunden. Dieses ist über seitliche, aufrechte Führungsstangen 77 bewegbar auf der Bahnplatte 53 abgestützt. Die Führungsstangen 77 sind in Gleitführungen 78 in der Bahnplatte 53 auf- und abbewegbar zur Durchführung der Faltbewegung.The upper folder 71 and lower folder 73 can only be moved up and down. The upper folder 71 is connected via holding rods 75 to a support profile 76 which extends transversely above the folding station 68. This is movably supported on the track plate 53 via lateral, upright guide rods 77. The guide rods 77 can be moved up and down in slide guides 78 in the web plate 53 in order to carry out the folding movement.

Der Unterfalter ist in Ausgangsstellung unterhalb der Bahnplatte 53 bzw. der Hauptbahn 50 gelagert, so daß der Schenkel 74 mit der Unterseite des Gebindes 20 bündig liegt. Der Unterfalter 73 ist seitlich an einer Profilstange 79 angebracht, die ihrerseits an den Enden mit Führungsstangen 80 verbunden ist. Diese wiederum sind in aufrechter Anordnung gleitend in Gleitführungen 81 an bzw. in der Bahnplatte 53 gelagert. Der Unterfalter 73 führt aufgrund seiner Funktion nur geringe Hubbewegungen aus.The lower folder is mounted in the starting position below the web plate 53 or the main web 50, so that the leg 74 lies flush with the underside of the container 20. The lower folder 73 is attached laterally to a profile rod 79, which in turn is connected at the ends to guide rods 80. These in turn are mounted in an upright arrangement in sliding guides 81 on or in the track plate 53. Due to its function, the lower folder 73 performs only small lifting movements.

Nach Durchführung der vorstehenden Faltvorgänge wird die nächste Gruppe 30 mit Umhüllung 31 zugeführt, wobei die Seitenfalter 69 in der beschriebenen Weise mit dieser nachfolgenden Gruppe 30 mitlaufen unter Umfalten der Seitenlappen 36. Die Relativstellung der Seitenfalter 69 ist derart, daß in der Endstellung ein in Bewegungsrichtung vornliegender Bereich der Seitenfalter 69 in den Bereich der Seitenflächen des davorliegenden Gebindes 20 in der Gebindereihe 70 eintritt. Dabei wird der in Förderrichtung rückseitige Seitenlappen 37 umgefaltet (Fig. 5).After the above folding processes have been carried out, the next group 30 is fed with the wrapping 31, the side folders 69 running in the manner described with this subsequent group 30, with the side flaps 36 being folded over. The relative position of the side folders 69 is such that in the end position one is in the direction of movement the front area of the side folder 69 enters the area of the side surfaces of the pack 20 in front in the pack row 70. The side flap 37 on the back in the conveying direction is folded over (FIG. 5).

Oberlappen 38 und Unterlappen 39 werden während des Weitertransports der Gebindereihe 70 gefaltet durch feststehende, unbewegliche Faltorgane an sich bekannter Art, nämlich durch sogenannte Faltweichen (nicht gezeigt). Diese sind als feststehende Wände ausgebildet, die seitlich neben der Bewegungsbahn der Gebinde 20 angeordnet sind und durch kurvenförmige Gestaltung einer Faltkante während der Bewegung der Gebinde 20 nacheinander Oberlappen 38 und Unterlappen 39 falten.Upper flaps 38 and lower flaps 39 are folded during the further transport of the row of containers 70 by fixed, immovable folding members of a known type, namely by so-called folding switches (not shown). These are designed as fixed walls, which are arranged laterally next to the path of movement of the container 20 and by the curved design of a folded edge during the Fold the movement of the containers 20 one after the other overlap 38 and underlap 39.

Wenn die Faltform gemäß Fig. 6 erreicht ist, wird durch ein plattenförmiges Siegelwerkzeug 82 die Seitenfläche gesiegelt, nämlich die überlappenden Bereiche von Oberlappen 38 und Unterlappen 39 miteinander. Danach ist das Gebinde 20 fertiggestellt. Es kann nun in geeigneter Weise abtransportiert werden über eine feststehende Abförderbahn 83.When the folded shape according to FIG. 6 is reached, the side surface is sealed by a plate-shaped sealing tool 82, namely the overlapping regions of upper lobe 38 and lower lobe 39 with one another. The container 20 is then completed. It can now be removed in a suitable manner via a fixed removal conveyor 83.

Die Seitenfalter 69 sind in ähnlicher Weise gelagert wie Oberfalter 71 und Unterfalter 73. Ein Tragprofil 90 erstreckt sich in Querrichtung unterhalb der Bahnplatte 53. An den Enden desselben sind aufrechte Winkelprofile angebracht, die jeweils die quaderförmigen Seitenfalter 69 aufnehmen. Das Tragprofil 90 wird unterhalb der Bahnplatte 53 in Bewegungsrichtung der Gebinde 20 hin- und hergehend angetrieben.The side folders 69 are mounted in a similar manner to the upper folder 71 and the lower folder 73. A support profile 90 extends transversely below the web plate 53. Upright angle profiles are attached to the ends of the latter, each of which accommodates the parallelepiped-shaped side folder 69. The support profile 90 is driven back and forth below the web plate 53 in the direction of movement of the container 20.

Die vorstehend beschriebenen Falt-, Förder- und Siegelorgane bilden einen (kompletten) Satz 40, 41 an Verpackungsorganen. Für andere Arten von Verpackungen können die Sätze 40, 41 hinsichtlich der Art und Anzahl der Verpackungsorgane modifiziert sein.The folding, conveying and sealing elements described above form a (complete) set 40, 41 of packaging elements. For other types of packaging, the sets 40, 41 can be modified with regard to the type and number of packaging elements.

Die für einen Formatwechsel der herzustellenden Verpackungen (Gebinde 20) auszutauschenden Verpackungsorgane sind bei dem vorliegenden Ausführungsbeispiel auf einem gemeinsamen Träger angeordnet, nämlich auf der Bahnplatte 53. Mit dieser ist auch die plattenförmige Oberbahn 50 mit den daran angebrachten Organen, insbesondere dem Schwenkschieber 49, verbunden.In the present exemplary embodiment, the packaging elements to be exchanged for changing the format of the packaging (bundle 20) to be produced are arranged on a common carrier, namely on the web plate 53. The plate-shaped top web 50 is also connected to the organs attached thereto, in particular the pivoting slide 49 .

Der gemeinsame Träger (Bahnplatte 53) ist leicht abnehmbar auf Halteorganen in der Verpackungsstation 42 gelagert. Es sind die mit der Traverse 47 verbundenen, horizontal gerichteten Tragstangen 48, auf denen die Bahnplatte 53 mit an der Unterseite derselben angeordneten Lagerstücken 84 verschiebbar und damit abziehbar, gelagert ist. Zum Auswechseln eines kompletten Satzes 40, 41 wird die Bahnplatte 53 im Bereich der Auswechselstation 44 von den Tragstangen 48 heruntergezogen und gegen einen anderen Satz ausgetauscht.The common carrier (web plate 53) is easily removable and mounted on holding members in the packaging station 42. It is the horizontally directed support rods 48 connected to the cross member 47, on which the track plate 53 with bearing pieces arranged on the underside thereof 84 displaceable and therefore removable, is stored. To replace a complete set 40, 41, the web plate 53 is pulled down from the support rods 48 in the area of the exchange station 44 and exchanged for another set.

Die bewegbaren Verpackungsorgane eines Satzes 40, 41 werden beim Austausch bzw. bei der Bewegung eines Satzes 40, 41 in die Verpackungsstellung 43 selbsttätig mit ortsfesten, nicht austauschbaren Antrieben gekoppelt. Bei dem vorliegenden Beispiel sind an dem Maschinengestell bzw. am Antriebsgehäuse 46 an der Oberseite Antriebsorgane 85, 86, 87 für verschiedene bewegbare Verpackungsorgane angeordnet. Diese Antriebsorgane 85, 86, 87 bestehen im vorliegenden Falle aus Antriebsstücken 88, die gleitend auf (zwei) feststehenden Gleitstangen 89 verschiebbar sind. Die Antriebsstücke 88 werden durch Getriebe, zum Beispiel Kurvenscheiben, im Inneren des Antriebsgehäuses 46 angetrieben.The movable packaging members of a set 40, 41 are automatically coupled to stationary, non-exchangeable drives when a set 40, 41 is exchanged or when it is moved into the packaging position 43. In the present example, drive elements 85, 86, 87 for various movable packaging elements are arranged on the machine frame or on the drive housing 46 on the upper side. In the present case, these drive members 85, 86, 87 consist of drive pieces 88, which are slidably displaceable on (two) fixed slide rods 89. The drive pieces 88 are driven by gears, for example cams, inside the drive housing 46.

Die hier beispielsweise in Fig. 11 gezeigten Antriebsorgane sind dem Abschieber 63 (Antriebsorgan 85), den Seitenfaltern 69 (Antriebsorgan 86) und den Siegelwerkzeugen 82 (Antriebsorgan 87) zugeordnet. Darüber hinaus sind Huborgane 91 vorgesehen, die ebenfalls am bzw. auf dem Antriebsgehäuse 46 gelagert und auf- und abbewegbar sind (Fig. 15, 16). Ein derartiges Huborgan 91 ist dem Oberfalter 71 sowie dem Unterfalter 73 zugeordnet. Bei dem gezeigten Ausführungsbeispiel ist eine Hubstange 92 am oberen Ende mit einem Kupplungskopf 93 versehen. Dieser wird selbsttätig durch die Bewegung eines Satzes 40, 41 in die und aus der Verpackungsstellung 43 mit dem zu betätigenden Verpackungsorgan gekoppelt. Bei dem hier gezeigten Ausführungsbeispiel ist zu diesem Zweck an dem Verpackungsorgan eine drehbare Kupplungsrolle 94 angebracht. Diese tritt in eine Kulissenführung 95 seitlich am Kupplungskopf 93 ein. Wie aus Fig. 16 ersichtlich, wird so in der Arbeitsstellung der Verpackungsorgane eine formschlüssige Verbindung zur Übertragung von Antriebsbewegungen geschaffen. In analoger Weise sind auch die Kupplungen für die Antriebsorgane 85, 86, 87 ausgebildet.The drive elements shown here, for example in FIG. 11, are assigned to the pusher 63 (drive element 85), the side folders 69 (drive element 86) and the sealing tools 82 (drive element 87). In addition, lifting members 91 are provided, which are also mounted on or on the drive housing 46 and can be moved up and down (FIGS. 15, 16). Such a lifting member 91 is assigned to the upper folder 71 and the lower folder 73. In the embodiment shown, a lifting rod 92 is provided with a coupling head 93 at the upper end. This is automatically coupled by the movement of a set 40, 41 into and out of the packaging position 43 with the packaging member to be actuated. In the exemplary embodiment shown here, a rotatable coupling roller 94 is attached to the packaging member for this purpose. This enters a link guide 95 on the side of the coupling head 93. As can be seen from FIG. 16, a positive connection for the transmission of drive movements is thus created in the working position of the packaging members. The couplings for the drive members 85, 86, 87 are also designed in an analogous manner.

Der Transport der Gebinde 20 bzw. Gruppen 30 nach Verlassen der Hubbühne 51 erfolgt unter einer Oberführung in Gestalt eines Bahndeckels 96. Dieser erstreckt sich vom Bewegungsbereich der Hubbühne 51 an bis zur Fertigstellung der Gebinde 20 mit einem der exakten Abmessung der Gebinde 20 entsprechenden Abstand von der Bahnplatte 53. Für den Durchtritt von Faltorganen etc. sind Öffnungen im Bahndeckel 96 vorgesehen.The transport of the bundles 20 or groups 30 after leaving the lifting platform 51 takes place under an upper guide in the form of a web cover 96. This extends from the range of movement of the lifting platform 51 to the completion of the bundles 20 with a distance of corresponding to the exact dimensions of the bundles 20 the web plate 53. Openings in the web cover 96 are provided for the passage of folding members etc.

Der Folienapparat 66 mit Trennmesser 57 und Förderrollen ist bei dem vorliegenden Ausführungsbeispiel fest mit der Tragsäule 45 verbunden, bleibt demnach stets in der Verpackungsstellung 43. Alternativ kann der Folienapparat 66 austauschbar angeordnet sein oder drehbar mit den beweglichen Sätzen 40, 41 sein. Dadurch ist es möglich, zwei unterschiedliche Ausführungen des Folienapparats vorzusehen. Mit dem Wechsel des Satzes 40, 41 kann auch der Folienapparat gewechselt werden.The film apparatus 66 with separating knife 57 and conveyor rollers is fixedly connected to the support column 45 in the present exemplary embodiment and therefore always remains in the packaging position 43. Alternatively, the film apparatus 66 can be arranged interchangeably or can be rotated with the movable sets 40, 41. This makes it possible to provide two different versions of the film apparatus. With the change of the set 40, 41, the film apparatus can also be changed.

Des weiteren sind Alternativausführungen für die Lagerung und Auswechselbarkeit der Sätze 40, 41 möglich.Furthermore, alternative designs for the storage and interchangeability of the sets 40, 41 are possible.

Claims (10)

  1. Process for packaging articles, in particular groups (30) of small packs (21), such as packs of paper handkerchiefs, into a wrapper consisting of film, having the following features:
    a) the article is conveyed on a track (52),
    b) a blank for forming the wrapper (31) is thereby laid in a U-shaped manner around the article such that a longer longitudinal tab (32) and a shorter-longitudinal tab (33) of the blank are formed,
    c) the longer longitudinal tab (32) is folded against a rear side of the article and is laid on the shorter longitudinal tab (33), in doing so forming a border strip (35),
    d) the two longitudinal tabs (32, 33) are sealed against one another in the region of the border strip (35),
    e) the border strip (35) is folded against the rear side of the article and of the wrapper (31),
    characterized by the following features:
    f) the blank is held ready transversely with respect to the conveying direction of the article and, in terms of height, offset with respect to the track (52),
    g) the width of the blank is dimensioned such that an overhang for forming folding tabs (36, 37, 38, 39) is obtained on both sides of the group,
    h) by virtue of the conveying movement of the article with the blank lying in a U-shaped manner around the article, front side tabs (36) of the lateral overhangs of the blank are folded, as part of side walls of the wrapper, against side surfaces of the article,
    i) the shorter longitudinal tab (33) is, at the same time, the lower longitudinal tab and the longer longitudinal tab (32) is the upper longitudinal tab, with the result that the border strip (35) can come to be located in the plane of the track (52) or of the lower longitudinal tab (33),
    j) after being laid onto the rear side of the article, the border strip (35) is connected to said rear side by sealing,
    k) thereafter, lateral overhangs of the blank in the region of the longitudinal tab (32), including the folded-over border strip (35), are folded against the side surfaces of the group (30), in doing so forming the rear side tab (37),
    l) finally, the lower and upper folding tabs, namely the upper tab (38) and lower tab (39) of the lateral overhangs of the blank, are folded against the side tabs (36, 37).
  2. Process according to Claim 1, characterized in that the article, as a group (30) of small packs (21), is compressed laterally before wrapping.
  3. Apparatus for packaging differently sized articles into in each case one blank of packaging material, in particular for packing a group (30) of small packs (21), such as packs of paper handkerchiefs, into an outer wrapper consisting of plastic films, in a packaging station having packaging members, namely having conveying members for conveying the articles on a conveying track (52), and having folding members for the U-shaped folding of the wrapper around the articles, during the conveying movement of the latter, with an upper folding means (71) and a lower folding means (73) for acting on and sealing a border strip (35) which projects counter to the conveying direction and is formed by an upper longitudinal tab (32) and a lower longitudinal tab (33), characterized by the following features:
    a) the lower folding means (73) is arranged in the conveying plane of the track (52) in order to seal the border strip (35),
    b) correspondingly, the upper folding means (71) can move downwards into the conveying plane of the track (52) in order to fold the upper longitudinal tab (32) and seal the border strip (35),
    c) the lower folding means (73) can move upwards onto the rear side of the article in order to lay, and seal, the border strip (35) thereon,
    d) side folding means (69) are provided in order to fold side tabs (36) which are located at the front in the movement direction of the article and side tabs (37) which are at the rear in the movement direction of the article,
    e) further folding members are provided in order to fold upper tabs (38) and lower tabs (39) which project laterally over the article.
  4. Apparatus according to Claim 3, characterized in that, for folding the front and rear side tabs (36, 37), the side folding means (69) can move to and fro on both sides of the path of movement of the article, said folding preferably taking place such that, by virtue of the advancement of the article with the wrapper (31), the side tab (36) which is located at the front in the movement direction can be folded and, by virtue of a movement in the opposite direction, the side folder (69) can then be conveyed out of the region of the article or of the bundle (20).
  5. Apparatus according to Claim 3 or 4, characterized in that, after the longitudinal tabs (32, 33) are folded, the rear side tabs (37) can, by movement of the side folding means (69) in the movement direction of the article, be folded relative, to the latter.
  6. Apparatus according to one or more of Claims 3 to 5, characterized in that the folding members for folding the upper tab (38) and lower tab (39) are fixed folding switches which are suitable preferably for sealing.
  7. Apparatus according to Claim 3 and one or more of the further claims, characterized in that the folding members (upper folding means 71, lower folding means 73) are arranged on carrying members (carrying profile 76, profile rod 79) running transversely above a principal track (52), and said carrying members are connected at the ends, outside the path of movement of the bundles (20), to upright guide rods (77, 80) which are mounted movably in a track plate (53) and can be actuated on the underside of said track plate by, in particular, stationary drives, in particular via transverse connections beneath the track plate (53).
  8. Apparatus according to Claim 3 and one or more of the further claims, characterized in that, by virtue of movable side walls (60) in the region of a lifting platform (51), the group (30) formed from small packs (21) can be compressed before wrapping.
  9. Apparatus according to Claim 3 and one or more of the further claims, characterized in that movable, driven packaging members, in particular folding members and sealing members can move by stationary guides (drive members 85, 86, 87; lifting members 91) and can be automatically coupled to the same in terms of transmission by virtue of the packaging members moving into the packaging position.
  10. Apparatus according to Claim 9, characterized in that the drive members (85, 86, 87) and/or lifting members (91) can be connected to the movable packaging members by positively locking couplings, in particular via a coupling head (93) with slotted guide (95) into which a coupling element (coupling roller 94) of the packaging member enters by virtue of the adjustment movement of the set (40, 41).
EP90124420A 1989-03-09 1990-02-21 Method and device for the packaging of products Expired - Lifetime EP0424991B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3907615A DE3907615A1 (en) 1989-03-09 1989-03-09 DEVICE (PACKING MACHINE) FOR PACKING ITEMS OF DIFFERENT SIZES
DE3907615 1989-03-09
EP90103316A EP0386524B1 (en) 1989-03-09 1990-02-21 Device for packaging objects of different size

Related Parent Applications (1)

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EP90103316.7 Division 1990-02-21

Publications (2)

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EP0424991A1 EP0424991A1 (en) 1991-05-02
EP0424991B1 true EP0424991B1 (en) 1994-11-23

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EP90103316A Expired - Lifetime EP0386524B1 (en) 1989-03-09 1990-02-21 Device for packaging objects of different size
EP90124420A Expired - Lifetime EP0424991B1 (en) 1989-03-09 1990-02-21 Method and device for the packaging of products

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EP90103316A Expired - Lifetime EP0386524B1 (en) 1989-03-09 1990-02-21 Device for packaging objects of different size

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EP (2) EP0386524B1 (en)
JP (2) JP2565578B2 (en)
BR (1) BR9001111A (en)
CA (1) CA2011161C (en)
DE (3) DE3907615A1 (en)

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Also Published As

Publication number Publication date
DE59007412D1 (en) 1994-11-17
EP0386524B1 (en) 1994-10-12
JP2768925B2 (en) 1998-06-25
BR9001111A (en) 1991-03-05
EP0424991A1 (en) 1991-05-02
CA2011161C (en) 2000-09-05
US5365721A (en) 1994-11-22
JPH08268408A (en) 1996-10-15
DE3907615A1 (en) 1990-09-13
EP0386524A1 (en) 1990-09-12
JPH03148409A (en) 1991-06-25
CA2011161A1 (en) 1990-09-09
DE59007759D1 (en) 1995-01-05
US5056294A (en) 1991-10-15
JP2565578B2 (en) 1996-12-18

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