EP0511358B1 - Procede et dispositif de fermeture d'une ouverture d'un recipient tubulaire - Google Patents

Procede et dispositif de fermeture d'une ouverture d'un recipient tubulaire Download PDF

Info

Publication number
EP0511358B1
EP0511358B1 EP91920589A EP91920589A EP0511358B1 EP 0511358 B1 EP0511358 B1 EP 0511358B1 EP 91920589 A EP91920589 A EP 91920589A EP 91920589 A EP91920589 A EP 91920589A EP 0511358 B1 EP0511358 B1 EP 0511358B1
Authority
EP
European Patent Office
Prior art keywords
container
closing element
sides
closure
opening
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
EP91920589A
Other languages
German (de)
English (en)
Other versions
EP0511358A1 (fr
Inventor
Wallace Nielsen
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.)
ADVANCED LIQUID PACKAGING Co
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0511358A1 publication Critical patent/EP0511358A1/fr
Application granted granted Critical
Publication of EP0511358B1 publication Critical patent/EP0511358B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/02—Machines characterised by the incorporation of means for making the containers or receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
    • B65D5/061—Rectangular containers having a body with gusset-flaps folded inwardly beneath the closure flaps

Definitions

  • the invention relates to a method and a device for closing an opening of a tubular container with a square cross-section, which is intended in particular for liquids and consists of paper or cardboard material which is at least sealed on one side, with a continuous peripheral folding line from the upper container wall Opening wall with four sides, namely a pouring side, two neighboring sides and a side opposite the pouring side, is divided and the four sides that surround the opening of the container to be closed, to form a closure along the edge fold lines and a triangular pattern of oblique fold lines on the Neighboring pages follow in this way and in the following order: neighboring pages, the side opposite the pouring side, pouring side, folded inwards and on top of one another and glued together so that when the Ve In conclusion, by pulling up and, if necessary, detaching the bonding of one side, a pouring spout defined by triangular surfaces can be formed from the pouring side and from adjacent parts of the neighboring sides.
  • the invention relates to a closure which is to be used in the context of the aforementioned methods.
  • a method for closing an opening of a tubular container made of paper material is known from the publication WO-A-85/02162, from which a corresponding closure also emerges.
  • This closure which is produced according to the process summarized at the outset, has considerable advantages over other containers or packaging for liquids, in particular for milk, fruit juices, etc., such as ease of manufacture in the automated manufacturing process, good material utilization through suitable shapes for the cardboard or paper cutting of the Container blanks, low container weight in relation to the liquid volume, optimal stackability and space utilization during storage and transport as well as for storage by the consumer, but above all a very good handling when opening the closure and when pouring out the liquid.
  • the closure is made with the container still empty and with the bottom still open, then the container is filled in the opposite position and only then is the top opening of the container now closed in a conventional manner, so that a total Cube-shaped container is created.
  • the side parts of the film element are then sealed to the sides of the container by the action of heat.
  • either only the flaps which are folded onto one another are sealed to one another by the action of heat, or the base part of the square film element is sealed to the flaps which have been folded onto one another and the flaps which have been folded onto one another are sealed to one another by the action of heat.
  • the container thus closed at one end with the cup-shaped film element is now ready to receive a liquid.
  • the closure is used at the lower end of the tubular container as a non-re-opening bottom closure and serves to completely seal this bottom end of the container.
  • the invention has for its object to further facilitate the manufacture and handling of the closure, but above all to produce a liquid-tight closure in a simple and reliable manner with the simplest possible means.
  • the manufacture of the container parts and the manufacture of the closure should be automatable.
  • the four sides are connected to one another in the folded-up position essentially only by gluing in at least one film-like closing element, which can also be formed by application or spraying or the like, of an adhesive layer , wherein at least the abutting surfaces of the spout side and the neighboring sides are not glued to one another, but in particular the inner folding edges of the neighboring sides which are first folded inwards by the closing element with the adjoining areas of the two later laterally folded sides, in particular the inside folding edges Pourer side, are connected so that at least the spout side which is pulled up when the closure is opened can be detached from the neighboring sides by simply tearing the closing element along the corresponding inner folded edges.
  • the main idea of the invention is to glue a film-like closing element to the inner surface of the closure-side end face of the container, the closing edges being exposed on the inside and the adjacent ones Surfaces are connected to each other in such a way that the closure can be produced, namely by sealingly connecting the opening wall parts or the folded sides of the opening to one another without gluing surface to surface.
  • the four sides - in the case of a cuboid-shaped container - are closed as before to close the later pouring opening - of course with the container bottom still open - and in this position the sides which are folded onto one another are folded together from the inside , i.e. from the inside of the container connected by gluing or gluing a film-like closing element.
  • an adhesive layer can also be formed by spraying on a suitable adhesive, which connects the adjacent edges and surfaces with one another in such a way that the unwanted unfolding of the folded-up wall parts or sides cannot take place and, above all, the closure is absolutely liquid-tight because it is all sealed Areas or spaces, openings, slots or the like. Detected through which the liquid can accidentally penetrate to the outside.
  • this film-like closing element or the adhesive layer can easily tear correspondingly along the edges of the side when the closure is opened by the consumer, which is the first to be unfolded when the container is opened.
  • the invention thus provides a mechanically high-strength closing and an absolutely liquid-tight sealing of the closure without the opening of the closure being impeded or made difficult by the consumer.
  • the closing element means that only the folded edges of the pages that are first folded inwards, which form triangles with a rectangular container cross section, are included the adjacent areas of the sides subsequently folded onto these triangles.
  • the side that later forms the pouring opening can be easily released from the closure and simply folded up by simply pulling it up.
  • the areas of this spout side that are folded onto one another and onto the underlying sides are not glued together.
  • the other folded edges should also be releasable if other sides of the container opening are pulled up and unfolded.
  • a pull-open tab which is known per se, is preferably used for easy opening of the closure.
  • the method according to the invention provides an optimal solution to the above problem.
  • a closing element made of sealable film or of a material coated, for example, with a film that is sealable on at least one side, is used and glued to the closing element by heating the closing element and pressing the inner container surfaces to be locked.
  • the welding of such a closing element with the outer coating of the container sides can be carried out in production with relatively simple means and with very high speed and in a reliable manner.
  • the shape of the film-like closing element is arbitrary as long as the function of the closing element is guaranteed.
  • the entire inner surface of the closure-side end face of the container is grasped with the closing element, but at least the edge areas, for connecting adjacent areas or sides.
  • first the corners of the inside of the container are sealed, preferably by heating and pressing, and the remaining areas are sealed by gluing in the closing element, wherein a closing element with a smaller area than the size of the inside of the container can be used.
  • a closure according to the invention for closing an opening of a tubular container which is intended in particular for liquids and consists of paper or cardboard material which is at least sealed on one side and is manufactured by one of the two known methods mentioned at the outset, is characterized according to the invention in that on the Inner surface of the closure-side end face of the container, which is formed by the areas of the opening wall or sides that are exposed on the inside, a film-like closing element that can be separated when the closure is opened by pulling up at least a portion of the opening wall or the sides, which can also consist of an applied adhesive layer, the inside of the container is glued on in a sealing manner is.
  • a closure produced in this way which can be produced by various and arbitrary methods, ensures an absolutely liquid-tight closure of the later pouring side of the container from the inside of the container, that is to say with the container bottom still open, without the surfaces of the sides of the closure being folded onto one another and thereby causing the closure Opening could be difficult.
  • the closing element made of PE film or PE-coated material is placed on the free end face of a mandrel, preferably a multi-arm rotor with corresponding mandrels at the outer end , placed there, heated and pressed against the inner surfaces of the four folded-up sides of the upper container part, that is, against the inner surface of the upper container part.
  • the gluing in of the closing element that after the tubular container, which is open on both sides, has been pulled onto the mandrel and after the closing element has been placed on the free end face of the mandrel, the container upper part is folded, preferably after activating the corner regions, and that Closing element is heated now or already during folding and is glued to this inner surface under pressure which is exerted from the outside onto the front outer surface of the upper container part and from the inside with the mandrel onto the front inner surface of the upper container part. It is also conceivable first place the closing element on the free end face of the mandrel and only then pull the tubular container open on both sides onto the mandrel. The result is essentially the same in both cases.
  • a device for heating and gluing the closing element, a device is therefore proposed according to the invention, which is characterized in that the head of the mandrel consists of insulating material such as ceramic or plastic, the end face of which is coated with an extremely fine coating of ferritic material, which is coated with an anti-adhesive layer e.g. is covered with a PTFE skin, and that for pressing the end face of the container upper part against the end face of the mandrel head, on which the closing element can be placed, a press ram is provided, in which an induction coil for extremely brief inductive heating, e.g.
  • the ferritic coating of the mandrel head is arranged.
  • a very thin metal plate can also be provided, which can be heated electrically by means of a current pulse. If necessary, the area of the mandrel head below the ferritic coating or the plate can also be cooled in order to avoid heating to an undesirably high temperature level and thus to ensure the heating cycle - heating up / cooling down - with a short cycle time.
  • This device allows a very high number of working cycles by heating and gluing the closing element in a very short time. Since only the wafer-thin ferritic coating on the end face of the mandrel head is inductively heated or the thin plate is briefly heated electrically due to its ohmic resistance, and because the heat conveyed during a heating cycle duration of 0.4 seconds, for example, is immediately restored by the closing element made of PE film and the adjacent inner surface of the upper part of the container is removed or used for heating, there is practically a thermal or temperature vibration, in particular during the temperature peaks in the ferritic coating or plate, the heating of the PE film of the closing element takes place, while when the induction coil is switched off and no heat is generated in the ferritic coating, the temperature of the ferritic metal or plate drops sharply.
  • the anti-adhesive skin with which the ferritic coating or the plate is coated prevents the closing element or parts of the sealable film forming the closing element from sticking to this receiving surface for the closing element.
  • the heated closing element preferably the PE closing element, completely merges with the front inner surface of the upper part of the container and brings about the desired complete liquid-tight sealing of this inner surface.
  • Bores to which vacuum can be applied are preferably provided in the end face of the mandrel head for holding the closing element during heating, etc. It goes without saying that the duration of the vacuum supply as well as the respective duration of action of the inductive or other heating must be matched precisely to the individual phases of the work cycle provided for gluing in the closing element.
  • a device which is characterized in that a plate which is heatable for heating the closing element and which is coated on the outside with an anti-adhesive layer, for example with PTFE, closes the end of the mandrel and the end face of the plate the receiving surface for the closing element before and forms during gluing.
  • an anti-adhesive layer for example with PTFE
  • the plate is easily interchangeable with a snap lock or other quick attachment.
  • a temperature level on the free end face of the plate is achieved and kept constant in this plate with a heater arranged in the plate, which at least brings about a softening of a closing element made of PE film placed on the plate.
  • the closing element can be pressed in the same way as an inductively heated closing element against the front inner surface of the upper container part and glued there in a sealing manner.
  • the PTFE coating of the plate which is preferably made of light metal such as aluminum, prevents PE film from sticking to the end face of the plate. After softening and pressing against the front inner surface of the upper part of the container, the closing element, which is made of PE film, rather passes completely onto this inner surface.
  • FIG. 1 shows an upper part, based on the later position of use, of a container, generally designated 1, which consists of a container blank 2 made of paper material coated on both sides with PE, which is partially shown in FIG.
  • the tubularly unfolded and connected along a seam 9 container wall 3 has in the upper area a corresponding square circumferential edge fold line 4, above which the four sides involved in the closure lie, namely a spout side 5, from which a spout can be formed when the closure is opened , a rear neighbor side 6, a front neighbor side 7 and a side 8 opposite the pouring side 5, along which the seam 9 runs.
  • a spout side 5 from which a spout can be formed when the closure is opened
  • a rear neighbor side 6 a front neighbor side 7 and a side 8 opposite the pouring side 5, along which the seam 9 runs.
  • the container blank 2 in Fig. 7 shows that the pouring side 5 is longer than the opposite side 8, so that the conditions shown in FIG. 2, for example, result later when folding.
  • the upper edge of the neighboring sides 6, 7 also has a course rising towards the pouring side 5.
  • An air outlet opening 14 is created when the closure is opened, which is shown in FIG. 10 and is intended to facilitate the inflow of air when liquid flows out of the container 1.
  • a pull tab 20 is already glued to the inner surface of the pouring side 5, which, when the container 1 is closed at its upper opening 10, assumes the position shown in FIGS. 2 and 3, for example, so that it opens the container is easy to pull up.
  • a closure element which is shown in different forms in FIGS. 4, 5 and 6 and is generally designated 15 is to be integrated into the closure. It consists of a piece of PE film as a square 16 according to FIG. 4, with recesses 17 on the edges according to FIG. 5 and as crossed strip strips 18, 19 according to FIG. 6. It is essential for the shape of the closing element 15 that when the four sides are unfolded 5, 6, 7, 8 resulting edges 31, 32, 33, 34 of the inner surfaces of the sides 6, 7, as shown in Figure 3, with the respective adjacent inner surfaces of the two sides 5, 8 are connected absolutely sealing. As a result, the gaps which form the edges 31, 32, 33, 34 with the adjacent regions on the sides 5, 8 are bridged and closed by the closing element 15. In the case of the square 16 of FIG.
  • the closing element 15 covers the square inner surface of FIG upper end of the container. As will be explained below, narrow edge strips of the inner surface can possibly remain free if the corners of the inner surface are closed and sealed in another way, as will be explained. If the closing element 15, regardless of whether the embodiment according to FIG. 4, 5 or 6 is selected, is glued in this way, the triangular regions of the sides 5, 6, 7 and 8 (see FIG. 3) exposed in the interior of the container become mechanically firm and along the edges 31, 32, 33, 34 sealed together.
  • the opening 10 is appropriately closed in the following steps: First the corner areas E on pages 5, 6, 7 and 8 are activated by hot air on the inside.
  • FIG. 7 shows a fold line pattern of a development of the container with vertical hatching. The activated areas are the lower tips of the hatched triangles.
  • the neighboring pages 6, 7 are then folded first along their oblique fold lines 12 and folded inwards along their edge fold lines 4. This is followed by folding the side 8 opposite the pouring side 5, whereupon the pouring side 5 is folded over as the last of the four sides along the edge folding line 4 and folded with the arcuate edge 13 and the pull tab 20 onto the outer surface of the opposite side 8.
  • the heated closing element 15 is pressed and glued from the inside of the container onto the inner surface of the front side of the container, as shown in FIG. 3, so that the image according to FIG. 8 is obtained.
  • the activated corner areas E are pressed together and glued to seal the four corners. As I said, the corner areas and if necessary. generally the edge strips of the inner surface of the container end face not to be covered with the closing element 15 when the corners are first glued in a sealing manner.
  • the stand according to FIG. 8 results - possibly with the release of edge strips all around - where the closing element 15, by connecting the edges 31, 32, 33, 34 to the adjacent surface areas, the gaps or slit-shaped ones present there Continuously seals openings and at the same time firmly connects the four sides 5, 6, 7, 8 to one another from the inside of the container.
  • the pull-on tab 20 is expediently glued onto the outer surface of the side 8 during the production of the adhesive bond or at another time so that it lies as flat as possible on the outer surface of the side 8 during transport.
  • the container 1 After filling in a liquid and after closing the bottom of the container 1 in any conventional manner, the container 1 enters the trade and from there to the consumer, who opens the container 1 again.
  • the pull tab 20 is easily detached from the side 8 with two fingers and the spout side 5 is pulled up with it.
  • the triangular inner surface (cf. FIG. 3 or 8) of the spout side 5 progressively tears along the edges 31, 32 from the center outwards from these inner folded edges of the two adjacent sides 6, 7. Only this tearing off of the inner folded edges 31, 32 of the neighboring sides 6, 7 consequently forms the resistance to pulling which is thus easy to overcome.
  • the folded surfaces are namely only in the Corner areas glued together and otherwise lie unglued on each other.
  • a spout 30 can easily be formed, as shown in FIGS. 9 and 10, by correspondingly folding the spout side 5 along the oblique fold lines 11.
  • air outlet opening 14 air has easy access to the interior of the container, so that the liquid can flow out is not hindered from the container 1.
  • the pull tab 20 can be easily torn off the spout side 5, so that it does not form an obstacle when pouring the liquid out of the spout 30.
  • FIGS. 9 and 10 illustrate the shape of the opened container and in particular the spout 30, both from the inside of the container (FIG. 9) and from the outside when looking at the upper part of the container.
  • a multi-armed rotor is arranged in a machine system for processing the container blanks for filling and closing the containers, which rotates in a cyclically driven manner and, during one revolution, closes the upper opening, which is secure during use, of the containers.
  • the tubular unfolded container is in each case drawn in a lower angular position onto a correspondingly square mandrel which corresponds in cross section to the container blank.
  • the corner regions of the sides forming the opening of the container are now activated.
  • the four sides in the way described is folded on top of one another, and now the likewise activated closing element made of PE film is guided to the inner surface of the container front side and pressed there firmly, the folded sides being held on the back by corresponding counterpressure.
  • the closing element is firmly and sealingly glued to the inner surface of the container front side.
  • the process of activating the corner areas of the triangular surfaces and folding the sides can, as already stated above, take place in reverse order. In any case, the closure is finished after the closing element has been glued into the container.
  • the container can now be removed from the mandrel and automatically transported to fill the liquid.
  • FIGS. 11 and 12 or 13 and 14 Two devices for activating or heating and gluing the closing element 15 made of PE film during the above-described work cycle are shown in FIGS. 11 and 12 or 13 and 14.
  • the head 38 of the mandrel on which the container 1 is accommodated is made of ceramic or plastic, in any case from an electrically insulating material.
  • the end face 39 of the mandrel head 38 is provided with a coating 40 made of ferritic metal with a thickness of approximately 20 ⁇ m, which in turn is covered with a PTFE skin 41.
  • the surface of the PTFE skin 41 forms a receiving surface 42 for the closing element 15.
  • the mandrel head 38 is opposite a press ram 43 in which an induction coil 44 is arranged and provided with a corresponding power supply .
  • the closing element 15 is placed on the receiving surface 42 of the PTFE skin 41 and held in place by means of negative pressure, which is effective via bores 45 in the end region of the mandrel head 38 which can be subjected to negative pressure.
  • the closing element 15 consisting of PE film 15-20 m ⁇ is now heated by the inductive heat generated in the coating 40 made of ferritic metal, whereupon the press die 43 is further counteracted the mandrel head 38 is guided and the end faces of the container 1 and the closing element 15 are compressed between the lower surface 47 of the press ram 43 and the receiving surface 42 such that the heated and activated closing element 15 firmly on the likewise activated PE coating of the inner surface 37 of the Glued to the front of the container 1. After the removal of the press ram 43 from the mandrel head 38, the closing element 15 is sealed in the container 1.
  • a plate 50 is located at the outer end of the mandrel 58, which is fastened to the head 52 of the mandrel 58 by means of screws 51 with the interposition of an insulating plate 53.
  • the head 52 has a shaft 60 at the bottom, which can be inserted into a bore 61 and fastened there by means of screws 54, the inner ends of which are in corresponding recesses 55 grip in the wall of the shaft 60. With the quick attachment formed in this way, the head 52 can be quickly replaced.
  • a heater 59 is arranged in the plate 50 in order to maintain the PTFE-coated end face of the plate 50, which forms the receiving surface 57 for the closing element 15, at a temperature level with which a closing element 15 placed on the receiving surface 57 is largely softened brought or can be made sticky that it is glued to the front inner surface 37 of the container 1 under appropriate pressure (press stamp not shown).
  • the closing element 15 placed on the receiving surface 57 can be held in place by means of bores 56 in the plate 50 which can be subjected to negative pressure.
  • this second heating and pressing device and also the feasible working cycle for gluing in the closing element 15 is similar to that in the case of the above-described first heating and pressing device, so that a further description is dispensed with.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Making Paper Articles (AREA)
  • Cartons (AREA)
  • Refuse Collection And Transfer (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Lift Valve (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Sealing Material Composition (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (11)

  1. Procédé pour fermer une ouverture d'un récipient tubulaire avec une section carrée, qui est destiné en particulier aux liquides et qui est constitué par du papier ou du carton apte à être scellé au moins d'un côté, une paroi d'ouverture continue avec quatre côtés, à savoir un côté verseur, deux côtés voisins et un côté opposé au côté verseur, étant divisée à partir de la paroi supérieure du récipient par une ligne de pliage de bord périphérique en carré, et les quatre côtés, qui entourent tout autour l'ouverture du récipient qui doit être fermée, étant pliés vers l'intérieur ainsi que l'un sur l'autre et étant collés l'un à l'autre pour former une fermeture le long des lignes de pliage de bord ainsi que d'un modèle de triangle en lignes de pliage en biais en suivant les côtés voisins ainsi que dans l'ordre suivant : côtés voisins, côté opposé au côté verseur, côté verseur, que, lors de l'ouverture ultérieure de la fermeture en tirant vers le haut et, le cas échéant, en dissolvant le collage d'un côté, l'on peut former un verseur prédéfini par des lignes de pliage qui forment des surfaces triangulaires et à partir de parties adjacentes des côtés voisins, caractérisé en ce que les quatre côtés sont reliés l'un à l'autre dans la couche pliés l'un sur l'autre essentiellement uniquement par le collage suivant de l'intérieur du récipient d'au moins un élément de fermeture de type feuille qui peut également être formé par l'application ou la dispersion ou équivalent d'une couche de colle, au moins les surfaces adjacentes l'une à l'autre du côté verseur et des côtés voisins n'étant pas collées l'une à l'autre mais en particulier les arêtes de pliage intérieure, adjacentes à l'intérieur au côté verseur, des côtés voisins pliés tout d'abord vers l'intérieur étant reliées par l'élément de fermeture de telle manière aux zones adjacentes des deux côtés pliés plus tard vers l'intérieur, en particulier du côté verseur, qu'au moins le côté verseur, qui lors de l'ouverture ultérieure de la fermeture, sera relevé le premier vers le haut peut être détaché des côtés voisins par simple déchirement de l'élément de fermeture le long des arêtes de pliage intérieures correspondantes, et un élément de fermeture avec une plus petite surface que la grandeur de la surface intérieure du récipient pouvant être utilisé.
  2. Procédé selon la revendication 1, caractérisé en ce qu'un élément de fermeture en feuille pouvant être scellée ou en un matériau enduit d'une feuille pouvant être scellée au moins sur un côté, par exemple en matériau enduit de polyéthylène, est utilisé et est collé sur l'élément de fermeture par réchauffement de l'élément de fermeture et par pression des surfaces intérieures du récipient qui doivent être scellées sur l'élément de fermeture.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce qu'avec l'élément de fermeture la surface intérieure de la face frontale du récipient du côté de la fermeture est prise, tout au moins cependant les zones des arêtes de pliage, pour relier et étancher des zones ou côtés adjacents l'un à l'autre.
  4. Procédé selon l'une des revendications précédentes 1 à 3, caractérisé en ce que les coins du côté intérieur du récipient sont étanchés, de préférence par réchauffement et pression, et les zones qui restent sont étanchées simultanément par collage de l'élément de fermeture.
  5. Procédé selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que l'élément de fermeture constitué par une feuille de polyéthylène ou du matériau enduit de polyéthylène est appliqué sur la face frontale libre d'un mandrin, y est réchauffé et est pressé contre les faces intérieures des quatre côtés pliés l'un sur l'autre de la partie supérieure du récipient, donc contre la surface intérieure frontale de la partie supérieure du récipient.
  6. Procédé selon la revendication 5, caractérisé en ce qu'après avoir monté le récipient tubulaire, ouvert des deux côtés, sur le mandrin et après avoir posé l'élément de fermeture sur la face frontale libre du mandrin, la partie supérieure du récipient est fermée par pliage et l'élément de fermeture est chauffé maintenant ou déjà pendant la fermeture par pliage et est collé par pression, qui est exercée à l'extérieur sur la face extérieure frontale de la partie supérieure du récipient et de l'intérieur avec le mandrin sur la face intérieure frontale de la partie supérieure du récipient, sur cette face intérieure.
  7. Dispositif pour réaliser le procédé selon la revendication 5 ou 6, caractérisé en ce que la tête du mandrin (38) est en matériau isolant comme la céramique ou en matière plastique, tête dont la face frontale (39) est enduite d'une couche (40) extrêmement fine de matériau métallique ferritique, qui est recouvert d'une couche antiadhésive, par exemple d'une peau en téflon (41), et qu'un poinçon de compression (43) est prévu pour presser la face frontale du récipient (1) sur les faces frontales (39) de la tête de mandrin, sur lesquelles l'élément de fermeture (15) peut être posé, poinçon dans lequel une bobine d'inductance (44) est placée pour le réchauffement inductif de durée extrêmement courte de la couche (40) métallique ferritique de la tête du mandrin (38) ou qu'une plaque de métal, qui peut être réchauffée électriquement par une impulsion de courant, se trouve sur la tête de mandrin (38) à la place de la couche (40).
  8. Dispositif selon la revendication 7, caractérisé par des forures (45), qui peuvent être chargées de dépression, dans la face frontale de la tête de mandrin (38) pour retenir l'élément de fermeture (15).
  9. Dispositif pour réaliser le procédé selon la revendication 5 ou 6, caractérisé en ce qu'une plaque (50), revêtue à l'extérieur d'une couche antiadhésive, par exemple en téflon, et de préférence constituée par un métal léger comme l'aluminium, qui peut être chauffée pour réchauffer l'élément de fermeture (15), termine le mandrin (58) sur la face frontale et la face frontale de la plaque (50) forme la surface de logement (57) pour l'élément de fermeture (15) avant et pendant le collage.
  10. Dispositif selon la revendication 9, caractérisé en ce que la plaque (50) avec la tête (52) peut être facilement détachée du mandrin (58) au moyen d'une fixation rapide (54, 55) et peut donc être rapidement échangée.
  11. Fermeture pour fermer une ouverture d'un récipient tubulaire, qui est destiné en particulier aux liquides et qui est constitué par du papier ou du carton apte à être scellé au moins d'un côté, une paroi d'ouverture, qui est divisée dans la zone de l'ouverture du récipient à fermer par une ou plusieurs lignes de pliage de bord de la paroi du récipient et qui entoure l'ouverture du récipient tout autour, étant pliée, pour former une fermeture, le long des lignes de pliage de bord vers l'intérieur l'une sur l'autre et étant collée section par section l'une à l'autre, le collage pouvant être sectionné, lors de l'ouverture ultérieure de la fermeture, en relevant au moins des parties de la paroi, en particulier lorsque l'ouverture du récipient tubulaire est formée en un arrangement carré ou rectangulaire par quatre côtés qui sont divisés dans la zone de l'ouverture du récipient à fermer par des lignes de pliage de bord en carré de la paroi du récipient et qui entourent l'ouverture du récipient tout autour, qui sont pliés vers l'intérieur ainsi que l'un sur l'autre et collés l'un à l'autre pour former une fermeture le long des lignes de pliage de bord ainsi que d'un modèle de triangle en lignes de pliage en biais en suivant les côtés et un verseur pouvant être formé lors de l'ouverture ultérieure de la fermeture en tirant vers le haut et, le cas échéant, en dissolvant le collage d'un côté, à partir de ce côté, caractérisé en ce que sur la face intérieure de la face frontale du récipient du côté de la fermeture, qui est formée par les zones dégagées à l'intérieur de la paroi de l'ouverture pliée ou des côtés pliés l'un sur l'autre, un élément de fermeture du type feuille, qui, lors de l'ouverture de la fermeture en tirant vers le haut au moins une partie de la paroi d'ouverture ou des côtés pliés l'un sur l'autre, peut être sectionné, qui peut également être constitué par une couche de colle appliquée et qui peut être utilisé avec une plus petite surface que la surface intérieure du récipient, est collé en étanchant l'intérieur du récipient du côté de la fermeture.
EP91920589A 1990-11-17 1991-11-16 Procede et dispositif de fermeture d'une ouverture d'un recipient tubulaire Expired - Lifetime EP0511358B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4036681 1990-11-17
DE4036681 1990-11-17
DE4112633 1991-04-18
DE4112633A DE4112633A1 (de) 1990-11-17 1991-04-18 Verfahren zum verschliessen einer oeffnung eines rohrfoermigen behaelters und verschluss fuer einen solchen behaelter
PCT/EP1991/002165 WO1992008651A1 (fr) 1990-11-17 1991-11-16 Procede et dispositif de fermeture d'une ouverture d'un recipient tubulaire

Publications (2)

Publication Number Publication Date
EP0511358A1 EP0511358A1 (fr) 1992-11-04
EP0511358B1 true EP0511358B1 (fr) 1996-06-12

Family

ID=25898583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91920589A Expired - Lifetime EP0511358B1 (fr) 1990-11-17 1991-11-16 Procede et dispositif de fermeture d'une ouverture d'un recipient tubulaire

Country Status (12)

Country Link
EP (1) EP0511358B1 (fr)
JP (1) JP3089325B2 (fr)
AT (1) ATE139197T1 (fr)
AU (1) AU9030191A (fr)
BR (1) BR9106020A (fr)
CA (1) CA2073987A1 (fr)
DE (2) DE4112633A1 (fr)
DK (1) DK0511358T3 (fr)
ES (1) ES2091951T3 (fr)
FI (1) FI923256A0 (fr)
NO (1) NO922815D0 (fr)
WO (1) WO1992008651A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011106102A2 (fr) 2010-02-24 2011-09-01 Kullberg, Wilhelm Fermeture pour récipient rectangulaire

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU675151B2 (en) * 1991-03-25 1997-01-23 Kabushiki Kaisha The Box Folding airtight container
JP5924874B2 (ja) * 2011-05-16 2016-05-25 日本テトラパック株式会社 包装容器及びその製造法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145899A (en) * 1961-12-28 1964-08-25 American Can Co Container for fluid products

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011106102A2 (fr) 2010-02-24 2011-09-01 Kullberg, Wilhelm Fermeture pour récipient rectangulaire
RU2622781C2 (ru) * 2010-02-24 2017-06-20 Вильхельм КУЛЛБЕРГ Емкость с укупорочным средством

Also Published As

Publication number Publication date
FI923256A (fi) 1992-07-16
JPH05504749A (ja) 1993-07-22
CA2073987A1 (fr) 1992-05-18
DK0511358T3 (da) 1999-05-17
DE59107934D1 (de) 1996-07-18
BR9106020A (pt) 1993-01-19
NO922815D0 (no) 1992-07-16
EP0511358A1 (fr) 1992-11-04
ES2091951T3 (es) 1996-11-16
AU9030191A (en) 1992-06-11
JP3089325B2 (ja) 2000-09-18
WO1992008651A1 (fr) 1992-05-29
DE4112633A1 (de) 1992-05-21
FI923256A0 (fi) 1992-07-16
ATE139197T1 (de) 1996-06-15

Similar Documents

Publication Publication Date Title
EP0274514A1 (fr) Emballage pour articles en pieces et son procede de fabrication.
EP0580989A1 (fr) Poche pour des matériaux liquides, pâteux ou granulaires et procédé de sa fabrication
EP2192052A2 (fr) Sachet d' emballage ainsi que procédé et dispositif de sa fabrication
CH642923A5 (de) Verfahren zur kontinuierlichen herstellung von packungsbehaeltern und vorrichtung zu dessen durchfuehrung.
WO1996030279A1 (fr) Dispositif de fermeture d'un recipient, recipient pourvu d'un tel dispositif, et element couvercle necessaire a la fabrication du dispositif
DE2541912C2 (de) Behälter, insbesondere Verpackungsbehälter, sowie Verfahren zum Herstellen eines solchen Behälters und Vorrichtung zum Durchführen des Verfahrens
EP0363693A1 (fr) Emballage à base de feuille composée et procédé de fabrication de celui-ci
EP0428897B1 (fr) Procédé de production d'un emballage pour produit fluide, dispositif de production d'un tel emballage et utilisation d'une matière plastique particulière
EP0664759B1 (fr) Procede de fabrication d'un emballage pour substances liquides et outil de mise en uvre dudit procede
EP2208554B1 (fr) Procédé et dispositif destinés à la fabrication de couvercles à ouverture facile
WO2010010130A2 (fr) Emballage refermable comportant une membrane pelable
DE4023602A1 (de) Verbunddose, insbesondere zur verpackung von nahrungsmitteln
EP0343266B1 (fr) Procédé pour fabriquer des récipients à partir d'une feuille en bande et installation pour la mise en oeuvre de ce procédé
EP0511358B1 (fr) Procede et dispositif de fermeture d'une ouverture d'un recipient tubulaire
EP1819501B1 (fr) Machine a sceller et procédé
DE102016218190A1 (de) Vorrichtung und Verfahren zur Herstellung einer Beutelpackung
DE2720907A1 (de) Tubenartiger behaelter und verfahren zum fuellen und zum herstellen eines tubenartigen behaelters
DE60314869T2 (de) Verfahren zum herstellen eines rohrförmigen rohrlings
DE3601650C2 (fr)
EP0716026B1 (fr) Récipient parallèlepipédique avec un sommet en forme de toit plat comprenant un bec-verseur et procédé de production d'un tel récipient
DE4432718A1 (de) Packung mit flacher Öffnungsvorrichtung und Werkzeug zur Herstellung derselben
EP1923323B1 (fr) Support pour boîtes, coupe destinée à sa fabrication en carton kraft ainsi que machine d'emballage destinée à la fabrication d'unités d'emballage à partir de ces supports et boîtes
EP0663884A1 (fr) Contenant scellable pouvant etre referme apres la premiere ouverture, procede et feuille permettant de le realiser
CH453117A (de) Dosenverschluss
DE3880419T2 (de) Herstellungsverfahren eines rohrfoermigen laminierten koerpers.

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

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

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NIELSEN, WALLACE

17P Request for examination filed

Effective date: 19921125

17Q First examination report despatched

Effective date: 19940603

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960612

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960612

REF Corresponds to:

Ref document number: 139197

Country of ref document: AT

Date of ref document: 19960615

Kind code of ref document: T

ITPR It: changes in ownership of a european patent

Owner name: CESSIONE EPO;ADVANCED LIQUID PACKAGING COMPANY

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: NIELSEN, WALLACE TRANSFER- ADVANCED LIQUID PACKAGI

REF Corresponds to:

Ref document number: 59107934

Country of ref document: DE

Date of ref document: 19960718

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: ADVANCED LIQUID PACKAGING COMPANY

RIN2 Information on inventor provided after grant (corrected)

Free format text: NIELSEN, WALLACE

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: ADVANCED LIQUID PACKAGING COMPANY

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960926

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2091951

Country of ref document: ES

Kind code of ref document: T3

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

Ref country code: LU

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

Effective date: 19961130

Ref country code: LI

Effective date: 19961130

Ref country code: CH

Effective date: 19961130

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

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

Ref country code: DK

Payment date: 19970513

Year of fee payment: 6

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

Ref country code: AT

Payment date: 19970515

Year of fee payment: 6

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: AT

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

Effective date: 19971116

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

Ref country code: DK

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

Effective date: 19971231

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

Ref country code: GB

Payment date: 19980513

Year of fee payment: 7

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

Ref country code: BE

Payment date: 19980527

Year of fee payment: 7

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

Ref country code: GB

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

Effective date: 19981116

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

Ref country code: BE

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

Effective date: 19981130

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

BERE Be: lapsed

Owner name: ADVANCED LIQUID PACKAGING CY

Effective date: 19981130

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

Effective date: 19981116

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

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

Ref country code: DE

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

Effective date: 20001130

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

Ref country code: DE

Payment date: 20010323

Year of fee payment: 9

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

Ref country code: ES

Payment date: 20030522

Year of fee payment: 12

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

Ref country code: SE

Payment date: 20030527

Year of fee payment: 12

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

Ref country code: FR

Payment date: 20030530

Year of fee payment: 12

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

Ref country code: SE

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

Effective date: 20031117

Ref country code: ES

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

Effective date: 20031117

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

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

Effective date: 20040730

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031117

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051116