EP0367025A1 - Container for fluid materials with an opening device - Google Patents

Container for fluid materials with an opening device Download PDF

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Publication number
EP0367025A1
EP0367025A1 EP19890119337 EP89119337A EP0367025A1 EP 0367025 A1 EP0367025 A1 EP 0367025A1 EP 19890119337 EP19890119337 EP 19890119337 EP 89119337 A EP89119337 A EP 89119337A EP 0367025 A1 EP0367025 A1 EP 0367025A1
Authority
EP
European Patent Office
Prior art keywords
lid
closure flap
handle
articulation
cover
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.)
Granted
Application number
EP19890119337
Other languages
German (de)
French (fr)
Other versions
EP0367025B1 (en
Inventor
Wilhelm Reil
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.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
Tetra Alfa Holdings SA
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 Tetra Laval Holdings and Finance SA, Tetra Alfa Holdings SA filed Critical Tetra Laval Holdings and Finance SA
Priority to AT89119337T priority Critical patent/ATE93472T1/en
Publication of EP0367025A1 publication Critical patent/EP0367025A1/en
Application granted granted Critical
Publication of EP0367025B1 publication Critical patent/EP0367025B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B65D47/0833—Hinges without elastic bias
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
    • B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab
    • 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
    • B65D43/00—Lids or covers for rigid or semi-rigid containers
    • B65D43/14—Non-removable lids or covers
    • B65D43/24—Devices for retaining in open position

Definitions

  • the invention relates to a package for flowable fillings with a tube, at the ends of which the bottom and lid are attached, of which the lid is made of thermoplastic material without a carrier material, is injection-molded onto the tube along the upper edge thereof and has a pouring device with a closure cap, the Sealing flap on the side opposite the tip of the pouring opening is articulated captively on the lid by means of a pivot axis and / or can be latched onto the lid with a latching device in the open state.
  • Known opening devices of this type have a closure flap in the region of a pouring opening with a handle which is connected to the closure flap via a tie bar. For opening, the user grips the handle and pulls the closure flap up along the weakening line along a line of weakness, so that the closure flap opens the opening and the filling material can be poured out.
  • Opening devices are known in which the closing flaps can be torn off completely and can therefore be lost with disadvantage. Considerations have already been made to hold the flaps over a flap, but then it is often difficult to insert them into the torn pouring opening, but at least it is hardly guaranteed that they will close properly.
  • the invention is therefore based on the object of providing conventional packs with improved opening devices which, on the one hand, can be opened more easily, the closure flap preferably being kept open, in order nevertheless to be pushed back into the opening in a defined position for reclosing, and for to guarantee the manufacturer economical production.
  • the handle is connected to the central region of the lid via a hinge. If the user pulls up the wear flap to open the pouring device, it initially remains captively hinged in an advantageous manner by snap-in devices, because the closure flap is captively connected to the handle and this is connected to the cover via the articulation bend. Due to the connection of the handle and thus also the articulation bend in the middle area of the cover, the anchoring point for the articulation bend is practically next to the locking device for the closing flap.
  • the manufacturer thus finds an economically producible product, because the articulation bend can also be used as a channel for the flowing plastic with which the lid is injected with the opening device.
  • the plastic is then introduced via the center of the lid, ie outwards from the central area, so that, as is known better spray products are created because all radial flow paths are practically the same length from the center to the outside.
  • the articulation bow is attached to the surface of the cover next to the snap-in device.
  • the articulation arch thus protrudes a little from the surface of the lid, the stackability of the liquid pack is not impaired by this.
  • the articulation bow can be designed in the form of a band and, after the cover has been sprayed on, can be folded over to the level of the cover while it is still plastic. This again creates a flat lid with opening device, handle and articulation bow, in which essentially no parts from the outer contour, i.e. projecting outward beyond the level of the cover. One pack can be stacked on top of the other.
  • the latching device has a nose which is attached to the cover in its central region and is connected to the articulation arch via a connecting web.
  • the closure flap can be latched onto the cover in the open state and kept open. This facilitates handling and pouring with the pack. Opening is also facilitated in particular by the connecting web, because the nose is pulled up when the handle is torn up and when the articulation bend is raised so that the latching bead of the latching device can be guided behind the nose and come into hooking engagement with the nose and are held in it can.
  • the locking bead lies in the outer or upper level of the closing flap and protrudes somewhat beyond it in a bead-like manner.
  • an attachment is formed on the annular handle at the top and rear. This is in no way necessary and is not even desirable in many embodiments, which is why tools are sometimes provided to prevent it from remaining on the handle. On the other hand, it does neither damage the appearance nor the function and shows in a characteristic way how the plastic is supplied via this approach when manufacturing the packaging. If you imagine the injection mold, then the channel in the area of the attachment represents the only inflow channel for the plastic to form the cover.
  • the hot thermoplastic material flows from above and behind in the manufacture of the cover, thus forming the annular handle on both sides (front and rear), so that a large part of the plastic material through the articulation bend in the central region of the cover and from there radially over the Flow paths to its edge; while a further portion of the liquid plastic flows into the area of the opening device from the mentioned approach to the front via a pull strip, because a little more plastic is required to form it than for the smooth cover walls.
  • Both the pull bar between the handle and the closing flap at the front as well as the articulation bend between the handle and the central area of the lid at the back represent flow channels and are at the same time force guide parts for the correct opening, holding, articulation and reclosing of the opening device after the spraying process and shaping the lid with the opening device.
  • the cover 8 made of plastic without a carrier material is injection molded with the pouring device, generally designated 22, with the closure flap 17.
  • the closing flap 17 is articulated captively by means of a pivot axis 28. The closure flap 17 can be latched to the cover 8 in the open state with the latching device generally designated 29.
  • the cover 8 molded on the upper edge 9 of the tube 1 in this way has four corners in plan view, as can clearly be seen in FIG. 3, a pouring edge 13 on the (here called) "front" corner 12, the corner 12 completely encircling, is injected. From the outside you can also clearly see the handle 14 with tie bar 15, which is formed at the front near the cover corner 12 at the tip 16 on the closing flap 17.
  • the closure flap is injection-molded onto a recess 20 along the weakening line 21 on the collar 18.
  • the depression 20 is located in the lower or front area together with the pouring device 22, while the outer or upper wall area 24 of the cover 8 is provided above or behind the rear wall 23.
  • the larger area of the lid 8 is taken up by the upper wall panel 24 which, when the handle 14 is folded over, serves as a standing and supporting surface for the next pack above when stacking, storing and transporting.
  • the articulation axis 28 described with the latching device 29. This is located in the region of the rear wall 23 at the transition from the surface of the lid 8 or the top thereof Wall panel 24 to the recess 20.
  • the articulation axis 28 is only as wide as the distance between the lines of weakness 21 ending at the middle region 2 of the lid 8, for example 8 mm in a 1-liter milk packaging.
  • a locking bead 32 is formed in the form of a sprue, on the side of which facing the closing flap 17 a small shoulder is formed.
  • a nose 34 which points downwards and can engage the shoulder of the locking bead 32.
  • a reinforcing rib 37 supports the nose 34 against the rear wall 23 and reinforces the nose which projects from the rear wall 23 to the closing flap 17.
  • an articulation bend 3 is formed thereon, which can be designed in the form of a web like the drawbar 15, but in the side view of FIGS. 1 and 2 it is designed in an arc shape and at the rear end (in 1 and 2 on the left) in the central area 2 of the cover 8 at 4 is connected to the upper wall panel 24 thereof.
  • the articulation bow 3 is connected to the nose 34 via a connecting web 5, so that when the handle 14 is pulled up in the direction of the arrow 6, the nose 34 is also bent up in the direction of the arrow 6 while deforming the reinforcing rib 37.
  • the handle 14 is provided with an attachment 7, which is integrally formed when the cover 8 is injection molded together with the pouring device 22, because this attachment 7 serves as the flow or inflow of the liquid plastic material from the injection molding machine into the cavities to form the cover with pouring device 22.
  • the snap-in device 29 operates after the pouring device 22 and the exposed pouring opening 27 are torn open in such a way that the closure flap 17 is pivoted about the articulation axis 28 in the direction of arrow 6, the nose 34 being pulled up by the connecting web 5 and the shoulder of the locking bead thereby being behind the nose 24 can snap into place. So that the closure flap with attached and somewhat deformed handle 14 with tie bar 15 and articulation bend 3 is locked in the open position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Cartons (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

A container for liquids comprises a tube at the upper end of which there is a lid consisting of thermoplastics synthetic material without any carrier material and which is injection molded along the top edge of the tube, forming a pouring means with a closure flap. The closure flap is captively articulated on the lid by means of an articulating axis, on the side opposite the tip of the pouring aperture, being adapted to be engaged on the lid in the open condition via an engaging means. In order that the closure flap can be kept open and can nevertheless be pressed down again into as far as possible a clearly defined position in order to reclose the container, the handle is connected via a curved articulating member to the middle portion of the lid. The curved articulating member is preferably provided on the surface of the lid alongside the engaging means.

Description

Die Erfindung betrifft eine Packung für fließfähige Füllgüter mit einem Tubus, an dessen Enden Boden und Deckel angebracht sind, von denen der Deckel aus thermoplastischem Kunststoff ohne Trägermaterial besteht, an dem Tubus längs dessen Oberkan­te angespritzt ist und eine Ausgießeinrichtung mit einer Ver­schließkappe aufweist, wobei die Verschließklappe auf der der Spitze der Ausgießöffnung gegenüberliegenden Seite mittels einer Anlenkachse unverlierbar am Deckel angelenkt und/oder mit einer Einrasteinrichtung im geöffneten Zustand am Deckel einrastbar ist.The invention relates to a package for flowable fillings with a tube, at the ends of which the bottom and lid are attached, of which the lid is made of thermoplastic material without a carrier material, is injection-molded onto the tube along the upper edge thereof and has a pouring device with a closure cap, the Sealing flap on the side opposite the tip of the pouring opening is articulated captively on the lid by means of a pivot axis and / or can be latched onto the lid with a latching device in the open state.

Es sind bereits zahlreiche Packungen mit einem Tubus aus mit Kunststoff beschichtetem Papier bekannt, deren Deckel aus ther­moplastischem Material angespritzt ist und gleichzeitig die Öffnungsvorrichtung angespritzt aufweist. Es sind bereits Pak­kungen entworfen worden, die einen viereckigen Boden und einen runden Deckel oder auch einen runden Deckel und runden Boden oder auch einen viereckigen Deckel und einen viereckigen Boden haben. Unbeachtlich der Form der Packung kommt es im Falle der vorliegenden Erfindung auf die Ausgestaltung der Öffnungs­vorrichtung an. Diese muß ein gutes Stapeln ermöglichen, beim Transport und der Lagerung dicht sein und gleichwohl für den Endverbraucher ohne zu großen Kraftaufwand gut zu öffnen sein.Numerous packages with a tube made of plastic-coated paper are already known, the lid of which is molded from thermoplastic material and at the same time have the opening device molded on. Packages have already been designed which have a square bottom and a round lid or also a round lid and round bottom or also a square lid and a square bottom. Regardless of the shape of the package, the design of the opening device is important in the case of the present invention. This must enable good stacking, be tight during transport and storage and nevertheless be easy to open for the end user without too much effort.

Bekannte Öffnungsvorrichtungen dieser Art weisen eine Ver­schließklappe im Bereich einer Ausgießöffnung mit einem Griff auf, der über einen Zugsteg mit der Verschließklappe verbunden ist. Zum Öffnen ergreift der Benutzer den Griff und zieht die Verschließklappe über den Zugsteg längs einer Schwächungslinie hoch, so daß die Verschließklappe die Öffnung freigibt und das Füllgut ausgegossen werden kann.Known opening devices of this type have a closure flap in the region of a pouring opening with a handle which is connected to the closure flap via a tie bar. For opening, the user grips the handle and pulls the closure flap up along the weakening line along a line of weakness, so that the closure flap opens the opening and the filling material can be poured out.

Es sind Öffnungsvorrichtungen bekannt, bei denen die Verschließ­klappen vollständig abreißbar sind und daher mit Nachteil ver­lorengehen können. Es sind auch bereits Überlegungen angestellt worden, Verschließklappen über eine Lasche festzuhalten, aber dann ist häufig ein gezieltes Einführen in die aufgerissene Ausgießöffnung schwierig, mindestens aber ein Verrasten für ein gutes Wiederverschließen kaum gewährleistet.Opening devices are known in which the closing flaps can be torn off completely and can therefore be lost with disadvantage. Considerations have already been made to hold the flaps over a flap, but then it is often difficult to insert them into the torn pouring opening, but at least it is hardly guaranteed that they will close properly.

Im Herstellungsbetrieb hat sich außerdem gezeigt, daß die Aus­gestaltung der Deckel aus thermoplastischem Kunststoff ohne Trägermaterial entweder zeitaufwendig, materialaufwendig oder fehlerbehaftet ist, denn der Materialfluß in die Randbereiche des Deckels bei gleichzeitig sauberer Ausgestaltung der Ver­schließklappe und dergleichen war schwierig zu realisieren.In the manufacturing plant, it has also been shown that the design of the lid made of thermoplastic material without a backing material is either time-consuming, material-consuming or faulty, because the material flow into the edge areas of the lid with a clean design of the closure flap and the like was difficult to implement.

Der Erfindung liegt daher die Aufgabe zugrunde, herkömmliche Packungen mit verbesserten Öffnungsvorrichtungen zu versehen, die einerseits leichter geöffnet werden können, wobei vorzugs­weise die Verschließklappe geöffnet gehalten werden soll, um dennoch zum Wiederverschließen in möglichst definierter Lage wieder in die Öffnung heruntergedrückt zu werden, und für den Hersteller eine wirtschaftliche Produktion zu gewährleisten.The invention is therefore based on the object of providing conventional packs with improved opening devices which, on the one hand, can be opened more easily, the closure flap preferably being kept open, in order nevertheless to be pushed back into the opening in a defined position for reclosing, and for to guarantee the manufacturer economical production.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Griff über einen Anlenkbogen mit dem Mittelbereich des Deckels verbunden ist. Reißt der Benutzer zum Öffnen der Ausgießvor­richtung die Verschleißklappe hoch, dann bleibt diese zunächst in vorteilhafter Weise durch Einrasteinrichtungen unverlierbar am Deckel angelenkt, denn die Verschließklappe ist unverlier­bar mit dem Griff und dieser über den Anlenkbogen mit dem Dek­kel verbunden. Durch die Anbindung des Griffes und damit auch des Anlenkbogens im Mittelbereich des Deckels befindet sich die Verankerungsstelle für den Anlenkbogen praktisch neben der Einrasteinrichtung für die Verschließklappe.This object is achieved in that the handle is connected to the central region of the lid via a hinge. If the user pulls up the wear flap to open the pouring device, it initially remains captively hinged in an advantageous manner by snap-in devices, because the closure flap is captively connected to the handle and this is connected to the cover via the articulation bend. Due to the connection of the handle and thus also the articulation bend in the middle area of the cover, the anchoring point for the articulation bend is practically next to the locking device for the closing flap.

Der Hersteller findet damit ein wirtschaftlich herstellbares Erzeugnis vor, denn der Anlenkbogen kann gleichzeitig als Kanal für den fließenden Kunststoff verwendet werden, mit dem der Deckel mit Öffnungsvorrichtung gespritzt wird. Die Einleitung des Kunststoffes erfolgt dann über die Mitte des Deckels, d.h. aus dem Mittelbereich heraus nach außen, so daß bekanntlich bessere Spritzprodukte entstehen, denn alle radialen Fließwege sind von der Mitte nach außen praktisch gleich lang.The manufacturer thus finds an economically producible product, because the articulation bend can also be used as a channel for the flowing plastic with which the lid is injected with the opening device. The plastic is then introduced via the center of the lid, ie outwards from the central area, so that, as is known better spray products are created because all radial flow paths are practically the same length from the center to the outside.

Hierfür ist es erfindungsgemäß zweckmäßig, wenn der Anlenkbo­gen neben der Einrasteinrichtung an der Oberfläche des Deckels angebracht ist. Obgleich der Anlenkbogen somit um ein geringes Maß aus der Oberfläche des Deckels heraussteht, wird die Sta­pelbarkeit der Flüssigkeitspackung dadurch doch nicht beein­trächtigt. Der Anlenkbogen kann bandförmig ausgestaltet sein und nach dem Spritzen des Deckels im noch plastischen Zustand auf die Ebene des Deckels umgelegt werden. Dadurch ist wieder ein ebener Deckel mit Öffnungsvorrichtung, Griff und Anlenk­bogen geschaffen, bei welchem im wesentlichen keine Teile aus der Außenkontur, d.h. über die Ebene des Deckels nach außen vorspringend vorgesehen sind. Eine Packung kann damit über der anderen gestapelt werden.For this purpose, it is expedient according to the invention if the articulation bow is attached to the surface of the cover next to the snap-in device. Although the articulation arch thus protrudes a little from the surface of the lid, the stackability of the liquid pack is not impaired by this. The articulation bow can be designed in the form of a band and, after the cover has been sprayed on, can be folded over to the level of the cover while it is still plastic. This again creates a flat lid with opening device, handle and articulation bow, in which essentially no parts from the outer contour, i.e. projecting outward beyond the level of the cover. One pack can be stacked on top of the other.

Bei vorteilhafter weiterer Ausgestaltung der Erfindung weist die Einrasteinrichtung eine am Deckel in dessen Mittelbereich angebrachte Nase auf, die über einen Verbindungssteg mit dem Anlenkbogen verbunden ist. Durch eine solche Einrasteinrichtung kann die Verschließklappe im geöffneten Zustand am Deckel ein­gerastet und geöffnet gehalten werden. Dies erleichtert die Handhabung und das Ausgießen mit der Packung. Auch das Öffnen wird insbesondere durch den Verbindungssteg erleichtert, denn die Nase wird beim Hochreißen des Griffes und beim Hochbiegen des Anlenkbogens so hochgezogen, daß die Rastwulst der Einrast­einrichtung hinter die Nase geführt werden kann und mit der Nase in verhakenden Eingriff kommen und in diesem gehalten werden kann. Die Rastwulst liegt in der äußeren oder oberen Ebene der Verschließklappe und ragt wulstartig etwas über die­se hinaus. Im Abstand von der an der Verschließklappe ange­brachten Rastwulst, und zwar zum Mittelbereich des Deckels hin, befindet sich eine Rückwand, welche einen vertieften Teil im Deckel, in welchem sich die Öffnungsvorrichtung befindet, von einem erhöhten Teil trennt, welcher die Oberfläche des Deckels bildet, an welcher der Anlenkbogen angebracht ist. An dieser Rückwand ist - gegebenenfalls über eine Verstär­ kungsrippe - die erwähnte Nase angebracht, die sich folglich im Abstand von der Verschließklappe befindet. Klappt der Be­nutzer die Verschließklappe beim Hochreißen um die Anlenkachse nach oben hoch, so greift die Rastwulst unter den Einrasthaken der Nase, denn die Nase wird durch den Verbindungssteg zusam­men mit dem Anlenkbogen hochgezogen. Somit ist die Verschließ­klappe in der geöffneten Stellung eingerastet.In an advantageous further embodiment of the invention, the latching device has a nose which is attached to the cover in its central region and is connected to the articulation arch via a connecting web. By means of such a snap-in device, the closure flap can be latched onto the cover in the open state and kept open. This facilitates handling and pouring with the pack. Opening is also facilitated in particular by the connecting web, because the nose is pulled up when the handle is torn up and when the articulation bend is raised so that the latching bead of the latching device can be guided behind the nose and come into hooking engagement with the nose and are held in it can. The locking bead lies in the outer or upper level of the closing flap and protrudes somewhat beyond it in a bead-like manner. At a distance from the locking bead attached to the closing flap, specifically towards the central region of the cover, there is a rear wall which separates a recessed part in the cover, in which the opening device is located, from an elevated part which forms the surface of the cover, to which the articulation bow is attached. On this back wall is - if necessary via a reinforcement kungsrippe - the mentioned nose attached, which is therefore at a distance from the closure flap. If the user flips up the flap when tearing up about the articulation axis, the locking bead engages under the snap hooks of the nose, because the nose is pulled up by the connecting web together with the articulation arch. The locking flap is thus locked in the open position.

Bei weiterer Ausgestaltung der Erfindung ist an dem ringförmi­gen Griff oben und hinten ein Ansatz angeformt. Dieser ist keineswegs notwendig und bei vielen Ausführungsformen nicht einmal erwünscht, weshalb teilweise Werkzeuge vorgesehen sind, um sein Verbleiben am Griff zu vermeiden. Andererseits schadet er weder dem Aussehen noch der Funktion und zeigt in charakte­ristischer Weise, wie beim Hersellen der Packung der Kunststoff über diesen Ansatz zugeführt wird. Stellt man sich das Spritz­werkzeug vor, dann stellt der Kanal im Bereich des Ansatzes den einzigen Einfließkanal für den Kunststoff zur Bildung des Deckels dar. Über dem Ansatz, d.h. von oben und hinten strömt das heiße Thermoplastmaterial bei der Herstellung des Deckels also unter Bildung des ringförmigen Griffes nach dessen beiden Seiten (vorne und hinten), so daß ein großer Teil des Kunststoff­materials durch den Anlenkbogen in den Mittelbereich des Dek­kels und von dort radial über die Fließwege zu dessen Rand strömt; während von dem erwähnten Ansatz nach vorn über eine Zugleiste ein weiterer Anteil des flüssigen Kunststoffes in den Bereich der Öffnungsvorrichtung fließt, weil zu deren Aus­bildung etwas mehr Kunststoff benötigt wird als für die glat­ten Deckelwände. Sowohl die Zugleiste zwischen Griff und Ver­schließklappe vorn als auch der Anlenkbogen zwischen Griff und Mittelbereich des Deckels hinten stellen Fließkanäle dar und sind gleichzeitig nach Beendigung des Spritzvorganges und Ausformung des Deckels mit Öffnungsvorrichtung Kraftführungs­teile zum richtigen Öffnen, Halten, Anlenken und Wiederver­schließen der Öffnungsvorrichtung.In a further embodiment of the invention, an attachment is formed on the annular handle at the top and rear. This is in no way necessary and is not even desirable in many embodiments, which is why tools are sometimes provided to prevent it from remaining on the handle. On the other hand, it does neither damage the appearance nor the function and shows in a characteristic way how the plastic is supplied via this approach when manufacturing the packaging. If you imagine the injection mold, then the channel in the area of the attachment represents the only inflow channel for the plastic to form the cover. The hot thermoplastic material flows from above and behind in the manufacture of the cover, thus forming the annular handle on both sides (front and rear), so that a large part of the plastic material through the articulation bend in the central region of the cover and from there radially over the Flow paths to its edge; while a further portion of the liquid plastic flows into the area of the opening device from the mentioned approach to the front via a pull strip, because a little more plastic is required to form it than for the smooth cover walls. Both the pull bar between the handle and the closing flap at the front as well as the articulation bend between the handle and the central area of the lid at the back represent flow channels and are at the same time force guide parts for the correct opening, holding, articulation and reclosing of the opening device after the spraying process and shaping the lid with the opening device.

Weitere Vorteile, Merkmale und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der folgenden Beschrei­ bung eines bevorzugten Ausführungsbeispieles in Verbindung mit den Zeichnungen. Es zeigen:

  • Figur 1 eine Querschnittsansicht durch den Deckel einer Packung mit Öffnungsvorrichtung und Griff, wobei nur der im Bereich des Deckels abefindliche Teil des Griffes, seiner Zugleiste und seines Anlenkbogens abgebrochen dargestellt ist,
  • Figur 2 eine Seitenansicht der Packungsoberseite mit dem Deckel, wobei der Tubus abgebrochen ist, und
  • Figur 3 eine Draufsicht auf den viereckigen Deckel der hier bevorzugten Ausführungsform.
Further advantages, features and possible uses of the present invention result from the following description Exercise of a preferred embodiment in connection with the drawings. Show it:
  • FIG. 1 shows a cross-sectional view through the lid of a package with opening device and handle, only the part of the handle, its pull bar and its articulation bow, which is located in the area of the lid, being shown broken away,
  • Figure 2 is a side view of the top of the pack with the lid, with the tube broken off, and
  • Figure 3 is a plan view of the square lid of the preferred embodiment here.

Längs der Oberkante 9 des Tubus 1 ist der Deckel 8 aus Kunst­stoff ohne Trägermaterial mit der allgemein mit 22 bezeichne­ten Ausgießeinrichtung mit der Verschließklappe 17 angespritzt. Auf der der Spitze 26 der innerhalb einer Schwächungslinie 21 liegenden Ausgießöffnung 27 gegenüberliegenden Seite ist die Verschließklappe 17 mittels einer Anlenkachse 28 unver­lierbar angelenkt. Die Verschließklappe 17 ist mit der allge­mein mit 29 bezeichneten Einrasteinrichtung im geöffneten Zu­stand am Deckel 8 einrastbar.Along the upper edge 9 of the tube 1, the cover 8 made of plastic without a carrier material is injection molded with the pouring device, generally designated 22, with the closure flap 17. On the side opposite the tip 26 of the pouring opening 27 lying within a weakening line 21, the closing flap 17 is articulated captively by means of a pivot axis 28. The closure flap 17 can be latched to the cover 8 in the open state with the latching device generally designated 29.

Wie man aus Figur 1 sieht, ist die freie Oberkante 9, die zu­nächst durch den Schnitt ohne Kunststoff freiliegt, vollstän­dig mit dem thermoplastischen Kunststoffmaterial des Deckels 8 umspritzt, und zwar auf der Innenseite des Tubus 1 durch einen konisch verlaufenden Bund 10 und nach außen durch einen Schutzrand 11. Hierdurch ist bei der fertigen Packung verhin­dert, daß Flüssigkeit von irgendeiner Seite in die kunststoff­freie Oberkante 9 eindringen und diese durch Quellen zerstören könnte.As can be seen from FIG. 1, the free upper edge 9, which is initially exposed due to the cut without plastic, is completely encapsulated with the thermoplastic material of the cover 8, specifically on the inside of the tube 1 by a conical collar 10 and on the outside a protective edge 11. This prevents the finished pack from allowing liquid to penetrate from any side into the plastic-free upper edge 9 and destroy it by swelling.

Der auf diese Weise an der Oberkante 9 des Tubus 1 angespritzte Deckel 8 hat in Draufsicht vier Ecken, wie man deutlich aus Figur 3 sieht, wobei an der (hier genannten) "vorderen" Ecke 12 eine Gießkante 13, die Ecke 12 vollständig umlaufend, ange­spritzt ist. Von außen erkennt man ferner deutlich den Griff 14 mit Zugsteg 15, der vorn nahe der Deckelecke 12 an der Spit­ze 16 an die Verschließklappe 17 angeformt ist. Die Verschließ­klappe ist über einen am Bund 18 in eine Vertiefung 20 längs der Schwächungslinie 21 angespritzt. Die Vertiefung 20 befin­det sich gemäß Draufsicht der Figur 3 im unteren oder vorderen Bereich mitsamt der Ausgießeinrichtung 22, während über bzw. hinter der Rückwand 23 das äußere bzw. obere Wandfeld 24 des Deckels 8 vorgesehen ist. Aus Figur 3 sieht man, daß die größe­re Fläche des Deckels 8 von dem oberen Wandfeld 24 eingenommen wird, welches bei umgelegtem Griff 14 als Stand- und Stützflä­che für die nächst darüberliegende Packung beim Stapeln, Lagern und Transport dient. Auf der der Spitze 26 der Ausgießöffnung 27 gegenüberliegenden Seite, nämlich an den Enden der Schwä­chungslinie 21, befindet sich die beschriebene Anlenkachse 28 mit der Einrasteinrichtung 29. Diese befindet sich im Be­reich der Rückwand 23 beim Übergang von der Oberfläche des Deckels 8 bzw. dessen oberen Wandfeldes 24 zur Vertiefung 20. Die Anlenkachse 28 ist nur so breit wie der Abstand zwischen den am Mittelbereich 2 des Deckels 8 hinten endenden Schwächungs­linien 21, bei einer 1-L-Milchverpackung z.B. 8 mm. An der oberen hinteren Kante der Verschließklappe 17 ist in Gestalt eines Angusses eine Rastwulst 32 angeformt, auf deren der Ver­schließklappe 17 zugewandten Seite eine kleine Schulter gebil­det ist. In geringem horizontalen Abstand zum Mittelbereich 2 des Deckels 8 hin befindet sich eine Nase 34, die nach unten zeigt und mit der Schulter der Rastwulst 32 in Eingriff kommen kann. Eine Verstärkungsrippe 37 stützt die Nase 34 gegen die Rückwand 23 ab und verstärkt die von der Rückwand 23 zur Ver­schließklappe 17 hin hinausragend angeordnete Nase.The cover 8 molded on the upper edge 9 of the tube 1 in this way has four corners in plan view, as can clearly be seen in FIG. 3, a pouring edge 13 on the (here called) "front" corner 12, the corner 12 completely encircling, is injected. From the outside you can also clearly see the handle 14 with tie bar 15, which is formed at the front near the cover corner 12 at the tip 16 on the closing flap 17. The closure flap is injection-molded onto a recess 20 along the weakening line 21 on the collar 18. According to the plan view of FIG. 3, the depression 20 is located in the lower or front area together with the pouring device 22, while the outer or upper wall area 24 of the cover 8 is provided above or behind the rear wall 23. From Figure 3 it can be seen that the larger area of the lid 8 is taken up by the upper wall panel 24 which, when the handle 14 is folded over, serves as a standing and supporting surface for the next pack above when stacking, storing and transporting. On the side opposite the tip 26 of the pouring opening 27, namely at the ends of the weakening line 21, there is the articulation axis 28 described with the latching device 29. This is located in the region of the rear wall 23 at the transition from the surface of the lid 8 or the top thereof Wall panel 24 to the recess 20. The articulation axis 28 is only as wide as the distance between the lines of weakness 21 ending at the middle region 2 of the lid 8, for example 8 mm in a 1-liter milk packaging. On the upper rear edge of the closing flap 17, a locking bead 32 is formed in the form of a sprue, on the side of which facing the closing flap 17 a small shoulder is formed. At a small horizontal distance from the central region 2 of the cover 8 there is a nose 34 which points downwards and can engage the shoulder of the locking bead 32. A reinforcing rib 37 supports the nose 34 against the rear wall 23 and reinforces the nose which projects from the rear wall 23 to the closing flap 17.

Auf der der Vorderseite zur Spitze 26 hin gegenüberliegenden Seite des ringförmigen Griffes 14 ist an diesem ein Anlenkbo­gen 3 angeformt, der stegförmig ausgestaltet sein kann wie der Zugsteg 15, in der Seitenansicht der Figuren 1 und 2 je­doch bogenförmig ausgestaltet ist und am hinteren Ende (in den Figuren 1 und 2 links) im mittleren Bereich 2 des Deckels 8 bei 4 mit dessen oberem Wandfeld 24 verbunden ist.On the side of the ring-shaped handle 14 opposite the tip 26 toward the tip, an articulation bend 3 is formed thereon, which can be designed in the form of a web like the drawbar 15, but in the side view of FIGS. 1 and 2 it is designed in an arc shape and at the rear end (in 1 and 2 on the left) in the central area 2 of the cover 8 at 4 is connected to the upper wall panel 24 thereof.

Der Anlenkbogen 3 ist über einen Verbindungssteg 5 mit der Nase 34 verbunden, so daß beim Hochziehen des Griffes 14 in Richtung des Pfeiles 6 die Nase 34 unter Deformation der Ver­stärkungsrippe 37 ebenfalls in Richtung des Pfeiles 6 hochge­bogen wird.The articulation bow 3 is connected to the nose 34 via a connecting web 5, so that when the handle 14 is pulled up in the direction of the arrow 6, the nose 34 is also bent up in the direction of the arrow 6 while deforming the reinforcing rib 37.

Oben hinten ist der Griff 14 schließlich noch mit einem Ansatz 7 versehen, der beim Spritzgießen des Deckels 8 mitsamt der Ausgießeinrichtung 22 einstückig angeformt wird, denn dieser Ansatz 7 dient als Durchfluß oder Zufluß des flüssigen Kunst­stoffmaterials von der Spritzmaschine in die Hohlräume zur Bildung des Deckels mit Ausgießeinrichtung 22.Finally, at the top rear, the handle 14 is provided with an attachment 7, which is integrally formed when the cover 8 is injection molded together with the pouring device 22, because this attachment 7 serves as the flow or inflow of the liquid plastic material from the injection molding machine into the cavities to form the cover with pouring device 22.

Im Betrieb arbeitet die Einrasteinrichtung 29 nach dem Aufrei­ßen der Ausgießeinrichtung 22 und freiliegende Ausgießöffnung 27 derart, daß die Verschließklappe 17 um die Anlenkachse 28 in Richtung Pfeil 6 geschwenkt wird, wobei die Nase 34 durch den Verbindungssteg 5 hochgezogen wird und die Schulter der Rastwulst dadurch hinter die Nase 24 einrasten kann. Damit ist die Verschließklappe mit daran angebrachtem und etwas de­formiertem Griff 14 mit Zugsteg 15 und Anlenkbogen 3 in der geöffneten Position arretiert.In operation, the snap-in device 29 operates after the pouring device 22 and the exposed pouring opening 27 are torn open in such a way that the closure flap 17 is pivoted about the articulation axis 28 in the direction of arrow 6, the nose 34 being pulled up by the connecting web 5 and the shoulder of the locking bead thereby being behind the nose 24 can snap into place. So that the closure flap with attached and somewhat deformed handle 14 with tie bar 15 and articulation bend 3 is locked in the open position.

Da alle Teile aus thermoplastischem Kunststoff bestehen, ver­steht es sich, daß zum Wiederverschließen der Benutzer nur auf die Verschließklappe 17 oder den Griff 14 einen kleinen Fingerdruck auszuüben braucht, um die Rastwulst 32 aus dem Eingriff mit der Nase 34 herauszuschnappen und die Verschließ­klappe 17 wieder in die Kontur der Öffnung 27 zu drücken.Since all parts are made of thermoplastic, it goes without saying that, for reclosing, the user only needs to exert a small finger pressure on the closing flap 17 or the handle 14 in order to snap the latching bead 32 out of engagement with the nose 34 and the closing flap 17 in again to press the contour of the opening 27.

Claims (4)

1. Packung für fließfähige Füllgüter mit einem Tubus (1), an dessen Enden Boden und Deckel (8) angebracht sind, von de­nen der Deckel (8) aus thermoplastischem Kunststoff ohne Trägermaterial besteht, an dem Tubus (1) längs dessen Ober­kante (9) angespritzt ist und eine Ausgießeinrichtung (22) mit einer Verschließklappe (17) aufweist, wobei die Ver­schließklappe (17) auf der der Spitze (26) der Ausgießöff­nung (27) gegenüberliegenden Seite mittels einer Anlenk­achse (28) unverlierbar am Deckel (8) angelenkt und/oder mit einer Einrasteinrichtung (29) im geöffneten Zustand am Deckel (8) einrastbar ist, dadurch gekennzeichnet, daß der Griff (14) über einen Anlenkbogen (3) mit dem Mittel­bereich (2) des Deckels (8) verbunden ist.1. Pack for flowable filling goods with a tube (1), at the ends of which the bottom and lid (8) are attached, of which the lid (8) consists of thermoplastic material without carrier material, on the tube (1) along its upper edge (9 ) is injection molded and has a pouring device (22) with a closure flap (17), the closure flap (17) being articulated on the lid (8) on the side opposite the tip (26) of the pouring opening (27) by means of a pivot axis (28) and / or can be snapped onto the cover (8) in the open state with a latching device (29), characterized in that the handle (14) is connected to the central region (2) of the lid (8) by means of an articulation bend (3). 2. Packung nach Anspruch 1, dadurch gekennzeichnet, daß der Anlenkbogen (3) neben der Einrasteinrichtung (29) an der Oberfläche (24) des Deckels (8) angebracht ist.2. Pack according to claim 1, characterized in that the articulation bend (3) next to the latching device (29) on the surface (24) of the lid (8) is attached. 3. Packung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Einrasteinrichtung (29) eine am Deckel (8) in des­sen Mittelbereich (2) angebrachte Nase (34) aufweist, die über einen Verbindungssteg (5) mit dem Anlenkbogen (3) ver­bunden ist.3. Pack according to claim 1 or 2, characterized in that the latching device (29) has a on the lid (8) in the central region (2) attached nose (34) which via a connecting web (5) with the articulation bend (3) connected is. 4. Packung nach einem der Ansprüche 1 bis 3, dadurch gekenn­zeichnet, daß an dem ringförmigen Griff (14) oben und hin­ten ein Ansatz (7) angeformt ist.4. Pack according to one of claims 1 to 3, characterized in that an attachment (7) is integrally formed on the annular handle (14) above and behind.
EP89119337A 1988-11-04 1989-10-18 Container for fluid materials with an opening device Expired - Lifetime EP0367025B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89119337T ATE93472T1 (en) 1988-11-04 1989-10-18 SOLVENT PACK WITH OPENING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3837495A DE3837495C2 (en) 1988-11-04 1988-11-04 Stackable plastic packaging with opening device
DE3837495 1988-11-04

Publications (2)

Publication Number Publication Date
EP0367025A1 true EP0367025A1 (en) 1990-05-09
EP0367025B1 EP0367025B1 (en) 1993-08-25

Family

ID=6366512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119337A Expired - Lifetime EP0367025B1 (en) 1988-11-04 1989-10-18 Container for fluid materials with an opening device

Country Status (9)

Country Link
US (1) US4997099A (en)
EP (1) EP0367025B1 (en)
JP (2) JPH02180143A (en)
AT (1) ATE93472T1 (en)
AU (1) AU632072B2 (en)
CA (1) CA2002027A1 (en)
DE (2) DE3837495C2 (en)
ES (1) ES2042930T3 (en)
NO (1) NO177818C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6517794B2 (en) 2000-04-29 2003-02-11 Dmc2 Degussa Metals Catalysts Cerdec Ag Method for removing nitrogen oxides from an oxygen-containing flue gas stream
US7431906B2 (en) 2001-05-19 2008-10-07 Degussa Ag Selective catalytic reduction

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917609A1 (en) * 1989-05-31 1990-12-06 Tetra Pak Gmbh PACKAGE FOR FLOWABLE FILLING MATERIAL WITH INJECTED HANDLE, METHOD FOR INJECTING THE HANDLE AND DEVICE THEREFOR
CH686503A5 (en) * 1992-07-07 1996-04-15 Tetra Laval Holdings & Finance Container.
DE4228723A1 (en) * 1992-08-28 1994-03-03 Tetra Pak Gmbh Flow pack with plastics lid - has specially shaped sharp-edged pouring spout for easy pouring of small amounts.

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CH426533A (en) * 1964-11-02 1966-12-15 S Van Baarn Paul Closing device for container
US4687116A (en) * 1986-09-10 1987-08-18 Sun Coast Plastics, Inc. Easy open container end closure
EP0251590A2 (en) * 1986-06-20 1988-01-07 Lingner + Fischer GmbH Container cap

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US3268112A (en) * 1963-12-19 1966-08-23 American Can Co Flexible carrying handle
US4103804A (en) * 1975-10-06 1978-08-01 Fournier E P Clamp action sealing device for tab opening cans
DD144746A5 (en) * 1979-07-02 1980-11-05 Nelson J Waterbury LOCKING ON AN OPENED LID
DE3263285D1 (en) * 1981-09-21 1985-05-30 Alberto Menichetti Container
DE3405253A1 (en) * 1984-02-15 1985-08-29 Altstädter Verpackungsvertriebs Gesellschaft mbH, 6102 Pfungstadt LID OF A LIQUID PACK WITH METHOD AND DEVICE FOR PRODUCING THE SAME
US4669640A (en) * 1984-06-26 1987-06-02 Dai Nippon Insatsu Kabushiki Kaisha Meiji Milk Products Company Limited Sealed gable top carton having a mouthpiece of one piece molding
DE3439492A1 (en) * 1984-10-27 1986-05-07 Altstädter Verpackungsvertriebs Gesellschaft mbH, 6102 Pfungstadt LIQUID PACK WITH HANDLE
US4562936A (en) * 1985-02-12 1986-01-07 The Procter & Gamble Company Easy-open laminated container with optional reclosing means and method of making
FR2590554B1 (en) * 1985-11-27 1989-08-11 Kishimoto Sangyo Co PACKAGING-CONTAINER
JPS62241168A (en) * 1986-04-12 1987-10-21 Sony Corp Cassette carrying device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH426533A (en) * 1964-11-02 1966-12-15 S Van Baarn Paul Closing device for container
EP0251590A2 (en) * 1986-06-20 1988-01-07 Lingner + Fischer GmbH Container cap
US4687116A (en) * 1986-09-10 1987-08-18 Sun Coast Plastics, Inc. Easy open container end closure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6517794B2 (en) 2000-04-29 2003-02-11 Dmc2 Degussa Metals Catalysts Cerdec Ag Method for removing nitrogen oxides from an oxygen-containing flue gas stream
US7431906B2 (en) 2001-05-19 2008-10-07 Degussa Ag Selective catalytic reduction

Also Published As

Publication number Publication date
DE3837495A1 (en) 1990-05-10
NO894385L (en) 1990-05-07
JPH02180143A (en) 1990-07-13
EP0367025B1 (en) 1993-08-25
NO177818C (en) 1995-11-29
CA2002027A1 (en) 1990-05-04
ATE93472T1 (en) 1993-09-15
DE58905380D1 (en) 1993-09-30
AU632072B2 (en) 1992-12-17
JPH02219753A (en) 1990-09-03
US4997099A (en) 1991-03-05
NO177818B (en) 1995-08-21
DE3837495C2 (en) 1994-06-01
NO894385D0 (en) 1989-11-03
ES2042930T3 (en) 1993-12-16
AU4433889A (en) 1990-05-10

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