EP0597246A2 - Opening device on the cover of a package for liquid products - Google Patents
Opening device on the cover of a package for liquid products Download PDFInfo
- Publication number
- EP0597246A2 EP0597246A2 EP93116123A EP93116123A EP0597246A2 EP 0597246 A2 EP0597246 A2 EP 0597246A2 EP 93116123 A EP93116123 A EP 93116123A EP 93116123 A EP93116123 A EP 93116123A EP 0597246 A2 EP0597246 A2 EP 0597246A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- edge
- opening
- projection
- pouring
- closure flap
- 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.)
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Classifications
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- 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
- B65D47/0847—Hinges without elastic bias located within a flat surface of the base element
Definitions
- the invention relates to an opening device on the lid of an eluent pack, in which a pouring opening can be reclosed by a closure flap and is thereby openable in that the closure flap is pivotably and captively hinged at the end of the pouring opening opposite the pouring side by means of a hinge, at least the edge of the pouring opening being elastic has deformable material.
- plasticizer packs of which one pack e.g. is formed from a tube of paper coated with plastic, which has bottom and lid at both ends, the lid made of plastic without a carrier material, i.e. without paper, is molded onto the top edge of the paper tube.
- This lid of the known package is essentially flat and has a pouring opening which extends approximately from the center of the lid to an outer edge and which is located in a so-called second inner plane which is at a short distance of e.g. 2 to 10 mm, preferably 5 mm, is located within the so-called first outer plane, which defines the outer surface of the lid of the pack.
- the lid with the opening device of this known package has been further developed in such a way that the closure flap of the opening device of the type described in the opening paragraph remains open at a certain angle during pouring.
- the latching means for keeping the known closure flap open are located in the area of the hinge on the side opposite the tip of the closure flap and have a latching bead protruding approximately vertically upwards from the flap and at a distance from this a protrusion protruding approximately vertically downwards on a Reinforcing rib is attached in the central area of the lid.
- This latching device is in need of improvement insofar as the configuration of the latching bead, compliance with the distance from the nose, the configuration of the hinge, a reinforcement rib aligned in a certain way and other devices is very difficult to manufacture and requires expensive injection molding tools.
- the known latching device can already be damaged by stacking the known packages on top of one another.
- the object of the invention is therefore to provide the device for keeping the closure flap open in the opening position in an opening device of the type mentioned at the outset in such a way that this hold-open device is simple to manufacture and design and cannot be damaged in the closed state.
- this object is achieved in that a projection from the lower edge of the closure flap is attached in such a way that it can be pulled over the edge of the pouring opening when opening and is supported on the edge of the pouring opening while keeping the closure flap open.
- the attachment of a projection is known to be simple.
- the hold-open device according to the invention is therefore simple to manufacture and design, since the injection molds are not complicated by the hold-open device according to the invention.
- “below” means an essentially vertical direction, which - starting from the lid of the plastic packaging - is to be thought in the direction of the interior of the packaging.
- the said projection is set from the closure tab in the direction of the interior of the package. It protrudes downward from the closure flap in such a way that in the closed state, when the closure flap is parallel to the main plane of the cover, preferably horizontally, it cannot be seen from the outside. The protrusion is right next to the edge of the pouring opening.
- Plastic for injecting a lid with an opening device and with a locking tab is an elastically deformable material, so that the hold-open device according to the invention does not prevent the new opening device from being actuated.
- the hinge can be a simple line of weakness or folded edge that extends in a straight line over the entire width of the upper side of the closure flap approximately in the central region of the cover. This direction of the hinge is preferably perpendicular to the longitudinal center direction of the pouring opening, if this is assumed from the area of the hinge to the pouring spout or tip of the pouring opening.
- the jet of the filling material also flows in the latter longitudinal direction of the pouring opening when pouring out.
- the projection for the hold-open device can be pulled over the edge of the pouring opening.
- the projection touches the edge of the pouring opening and may even deform it.
- the rim returns to its previous state after the closure flap has been fully opened, so that the projection is supported on the rim of the pouring opening when the handle is released.
- the hold-open device has its Function fully developed.
- the opening device can also be reclosed without difficulty despite the new hold-open device.
- the user can bring the closure flap from the open position into the closed position by light pressure, and here the projection can be pushed over the edge of the pouring opening in an analogous manner when closing. If the closure tab is again in the closed position, the projection is arranged inside the packaging, namely directly below the closure tab, so that it cannot be damaged from the outside.
- the projection on the edge of the closure flap is inclined from its center to the outside.
- the tube of the pack has an essentially vertical longitudinal center axis, against which the projection is inclined in the sense of the last-mentioned feature.
- the projection on the edge of the closure flap thus encloses an angle with the tube axis of the packaging, which is in the range from 0 to 30 °, preferably 5 to 20 °, and in a particularly preferred embodiment is approximately 15 ° .
- the projection is supported particularly reliably on the edge of the pouring opening and can nevertheless be moved without damage during the opening and closing movement with slight deformation of the parts sliding past one another.
- the invention is advantageously further developed in that at least one pin-shaped projection is attached to each side of the hinge and in the vicinity thereof.
- the design of the projection as a pen has proven to be particularly simple and reliable in practice. Nevertheless, the projection can also be given the shape of a bead, a needle, a raised hemisphere or an edge.
- it is expedient to arrange the projection in the vicinity of the hinge as was already provided in a similar manner in the known snap-in device with the two interlocking parts (locking bead and nose). In order to provide a very reliable keeping of the locking tab in its open position, however, it is particularly expedient to provide such a projection on each side of the hinge, because the locking tab is then held in a defined position over its entire width.
- the straight-line hinge described at the outset which extends over the width of the closure flap, has one side at the beginning of the width and the other side at the end of the line extending transversely across the closure flap. In this sense, there is a protrusion at one end of the straight elongate hinge and the other protrusion is at the opposite end.
- the measures according to the invention are selected particularly favorably when the edge of the pouring opening is more elastic than the projection.
- the projection and the fastening edge located on the closure flap for the projection is also made of the plastic from which the entire cover is injection molded, but the design of the parts on the projection side is selected so that when the parts touch and slide against one another, namely the projection on the one hand and the edge of the pouring opening, on the other hand, whenever the closure flap is brought into the opening position or vice versa from the latter into the closing position, the edge of the pouring opening is deformed more than the projection.
- This makes it easy to reclose the opening device because the projection presses past the edge of the pouring opening in a particularly inexpensive and dimensionally stable manner.
- edge of the pouring opening located in the region of the hinge is made thinner than the other, substantially U-shaped to substantially V-shaped edge of the pouring device when looks at them from above and perpendicular to their plane.
- the front edge of the pouring opening in particular in the region of the front pouring tip at the spout-side end of the pouring opening, is therefore thicker and stiffer than at the rear, i.e. than in the area of the hinge.
- Such a thinner design of an edge part at the rear compared to the front can be achieved very easily by slanting the injection mold. The thinner edge part then bends more easily, as is well understood.
- the edge of the pouring opening is inclined at least in the area of the hinge with respect to the plane of the pouring opening towards the inside of the package.
- the projection can be inclined outwards.
- the edge of the pouring opening can also be inclined at a similar angle to the tube axis. This results in a particularly good stabilization when keeping open, because the projection, which can preferably have the shape of a horn, then again comes to stand vertically on a support surface when the locking tab is in the open position. Despite this very stable hold-open position, resealing is very easy because the pin-shaped or horn-shaped projection is slightly inclined on it press the set edge of the pouring opening.
- the opening device according to the invention with the measures described above is particularly expedient if, according to the invention, the cover is essentially flat and made of plastic.
- Thermoplastics as is known per se, are particularly suitable for this.
- the essentially flat cover is arranged perpendicular to the longitudinal central axis 1 of the tube of the pack, not shown, this tube axis 1 being shown in dash-dot lines in FIG. 1 and perpendicularly on the dashed line of the hinge 2; but is also perpendicular to the longitudinal center axis 3 of the pouring opening 4, which is also shown in dashed lines.
- FIG. 2 shows the edge 5 of the pouring opening 4, which is approximately boat-shaped in plan view and which is arranged parallel under the edge 6 of the closure flap 7.
- the lid shown has an outer first plane 8 and a second inner plane 9 which is offset at a distance a from it downwards in the direction of the tube axis 1 and in which the pouring edge 10 lies, which is close to the tip 11 of the pouring opening 4 is located on the pouring side.
- a horn-like or pin-like projection 12 is shown attached to the lower edge 6 of the locking tab 7 on each side thereof.
- this pin-shaped projection 12 is almost invisible in the direction of the interior of the package.
- the pin-shaped projection 12 is set at an angle of 10 with respect to the tube axis 1 and stands vertically on the likewise inclined edge 5 of the pouring opening 4 in the open position in FIG. 2.
- the edge 5 of the pouring opening 4 thus supports the closure tab 7, which is in the open position according to FIG. 2, via the pin-shaped projection 12. After opening, the consumer can pour out the contents in peace without having to fear that the closure flap 7 will close.
- the locking tab 7 pivots clockwise around the hinge 2 when looking in the direction of the straight-line hinge, i.e. in the figures shown from the front left to the rear right.
- the pin-shaped projection 12 is held essentially in position, while the edge 5 of the pouring opening 4 is deformed in the area of the hinge 2, so that the projection 12 can be pressed past the edge 5.
- the edge 5 of the pouring opening 4 rises again to its manufacturing configuration and is in turn able to support the closure tab 7 in the position of FIG. 2 in the open position.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Cartons (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Secondary Cells (AREA)
- Telephone Function (AREA)
Abstract
Description
Die Erfindung betrifft eine Öffnungsvorrichtung am Deckel einer Fließmittelpackung, bei dem eine Ausgießöffnung durch eine Verschlußlasche wiederverschließbar und dadurch öffnungsfähig ist, daß die Verschlußlasche an dem der Ausgießseite gegenüberliegenden Ende der Ausgießöffnung mittels eines Scharniers schwenkbar und unverlierbar angelenkt ist, wobei wenigstens der Rand der Ausgießöffnung elastisch verformbares Material aufweist.The invention relates to an opening device on the lid of an eluent pack, in which a pouring opening can be reclosed by a closure flap and is thereby openable in that the closure flap is pivotably and captively hinged at the end of the pouring opening opposite the pouring side by means of a hinge, at least the edge of the pouring opening being elastic has deformable material.
Es gibt viele bekannte Arten von Fließmittelpackungen, von denen eine Packung z.B. aus einem Tubus aus mit Kunststoff beschichtetem Papier gebildet ist, der an seinen beiden Enden Boden und Deckel aufweist, wobei der Deckel aus Kunststoff ohne Trägermaterial, d.h. ohne Papier, an der Oberkante des Papiertubus angespritzt ist. Dieser Deckel der bekannten Packung ist im wesentlichen eben und weist eine sich etwa von der Mitte des Deckels zu einem Außenrand hin erstrekkende Ausgießöffnung auf, weiche sich in einer sogenannten zweiten inneren Ebene befindet, die sich in einem geringen Abstand von z.B. 2 bis 10 mm, vorzugsweise 5 mm, innerhalb der sogenannten ersten äußeren Ebene befindet, welche die Außenfläche des Deckels der Packung vorgibt.There are many known types of plasticizer packs, of which one pack e.g. is formed from a tube of paper coated with plastic, which has bottom and lid at both ends, the lid made of plastic without a carrier material, i.e. without paper, is molded onto the top edge of the paper tube. This lid of the known package is essentially flat and has a pouring opening which extends approximately from the center of the lid to an outer edge and which is located in a so-called second inner plane which is at a short distance of e.g. 2 to 10 mm, preferably 5 mm, is located within the so-called first outer plane, which defines the outer surface of the lid of the pack.
Der Deckel mit Öffnungsvorrichtung dieser bekannten Packung ist weiterentwickelt worden dahingehend, daß die Verschlußlasche der Öffnungsvorrichtung der eingangs bezeichneten Art nach dem Öffnen während des Ausgießens unter einem bestimmten Winkel offen stehen bleibt. Die Einrastmittel zum Offenhalten der bekannten Verschlußlasche befinden sich im Bereich des Scharniers auf der der Spitze der Verschlußlasche gegenüberliegenden Seite und weisen eine etwa senkrecht von der Lasche nach oben herausstehende Rastwulst und im Abstand von dieser eine etwa senkrecht nach unten vorstehende Nase auf, die an einer Verstärkungsrippe im Mittelbereich des Deckels angebracht ist.The lid with the opening device of this known package has been further developed in such a way that the closure flap of the opening device of the type described in the opening paragraph remains open at a certain angle during pouring. The latching means for keeping the known closure flap open are located in the area of the hinge on the side opposite the tip of the closure flap and have a latching bead protruding approximately vertically upwards from the flap and at a distance from this a protrusion protruding approximately vertically downwards on a Reinforcing rib is attached in the central area of the lid.
Diese Einrasteinrichtung ist verbesserungswürdig insofern, als die Ausgestaltung der Rastwulst, der Einhaltung des Abstandes derselben von der Nase, die Ausgestaltung des Scharniers, einer in bestimmter Weise ausgerichteten Verstärkungsrippe und anderer Einrichtungen recht schwierig herzustellen ist und aufwendige Spritzwerkzeuge erfordert. Außerdem kann die bekannte Einrasteinrichtung schon durch das Stapeln der bekannten Pakkungen übereinander beschädigt werden.This latching device is in need of improvement insofar as the configuration of the latching bead, compliance with the distance from the nose, the configuration of the hinge, a reinforcement rib aligned in a certain way and other devices is very difficult to manufacture and requires expensive injection molding tools. In addition, the known latching device can already be damaged by stacking the known packages on top of one another.
Aufgabe der Erfindung ist es daher, die Einrichtung zum Offenhalten der Verschlußlasche in Öffnungsposition bei einer Öffnungsvorrichtung der eingangs genannten Art so vorzusehen, daß diese Offenhalteeinrichtung einfach herzustellen und auszugestalten ist und im geschlossenen Zustand nicht beschädigt werden kann.The object of the invention is therefore to provide the device for keeping the closure flap open in the opening position in an opening device of the type mentioned at the outset in such a way that this hold-open device is simple to manufacture and design and cannot be damaged in the closed state.
Gemäß der Erfindung wird diese Aufgabe durch gelöst, daß ein Vorsprung vom unteren Rand der Verschlußlasche nach unten derart vorstehend angebracht ist, daß er beim Öffnen über den Rand der Ausgießöffnung hinwegziehbar ist und sich unter Offenhalten der Verschlußlasche auf dem Rand der Ausgießöffnung abstützt. Bei Spritzgießwerkzeugen ist die Anbringung eines Vorsprunges bekanntlich einfach. Die Offenhalteeinrichtung gemäß der Erfindung ist daher einfach herzustellen und auszugestalten, denn die Spritzwerkzeuge komplizieren sich durch die Offenhalteeinrichtung gemäß der Erfindung nicht.According to the invention, this object is achieved in that a projection from the lower edge of the closure flap is attached in such a way that it can be pulled over the edge of the pouring opening when opening and is supported on the edge of the pouring opening while keeping the closure flap open. In the case of injection molding tools, the attachment of a projection is known to be simple. The hold-open device according to the invention is therefore simple to manufacture and design, since the injection molds are not complicated by the hold-open device according to the invention.
Im Sinne der Erfindung bedeutet "unten" eine im wesentlichen vertikale Richtung, welche - vom Deckel der Fließmittelpackung ausgehend - in Richtung des inneren der Packung zu denken ist. Erfindungsgemäß ist der besagte Vorsprung von der Verschlußlasche also in Richtung auf das Innere der Packung angesetzt. Er steht von der Verschlußlasche nach unten so vor, daß er im geschlossenen Zustand, wenn die Verschlußlasche also zur Hauptebene des Deckels parallel liegt, vorzugsweise horizontal liegt, von außen nicht zu sehen ist. Der Vorsprung liegt also direkt neben dem Rand der Ausgießöffnung.In the sense of the invention, “below” means an essentially vertical direction, which - starting from the lid of the plastic packaging - is to be thought in the direction of the interior of the packaging. According to the invention, the said projection is set from the closure tab in the direction of the interior of the package. It protrudes downward from the closure flap in such a way that in the closed state, when the closure flap is parallel to the main plane of the cover, preferably horizontally, it cannot be seen from the outside. The protrusion is right next to the edge of the pouring opening.
Kunststoff zum Anspritzen eines Deckels mit Öffnungsvorrichtung und mit Verschlußlasche ist ein elastisch verformbares Material, so daß die Offenhalteeinrichtung gemäß der Erfindung die Betätigung der neuen Öffnungsvorrichtung nicht hindert. Beim Öffnen zieht der Benutzer die Verschlußlasche mittels eines Griffes nach oben auf, wobei die Verschlußlasche um das Scharnier hochgeklappt wird. Das Scharnier kann eine einfache Schwächungslinie oder Faltkante sein, die sich über die gesamte Breite der Oberseite der Verschlußlasche geradlinig etwa im Mittelbereich des Deckels erstreckt. Diese Richtung des Scharniers liegt vorzugsweise senkrecht zur Längsmittelrichtung der Ausgießöffnung, wenn man diese vom Bereich des Scharniers zur Ausgießtülle oder Spitze der Ausgießöffnung annimmt. In der letztgenannten Längsrichtung der Ausgießöffnung fließt auch der Strahl des Füllgutes beim Ausgießen.Plastic for injecting a lid with an opening device and with a locking tab is an elastically deformable material, so that the hold-open device according to the invention does not prevent the new opening device from being actuated. When opening, the user pulls up the locking flap by means of a handle, the locking flap being folded up around the hinge. The hinge can be a simple line of weakness or folded edge that extends in a straight line over the entire width of the upper side of the closure flap approximately in the central region of the cover. This direction of the hinge is preferably perpendicular to the longitudinal center direction of the pouring opening, if this is assumed from the area of the hinge to the pouring spout or tip of the pouring opening. The jet of the filling material also flows in the latter longitudinal direction of the pouring opening when pouring out.
Wird die Verschlußlasche also beim Öffnen um das Scharnier hochgeschwenkt, dann ist der Vorsprung für die Offenhalteeinrichtung über den Rand der Ausgießöffnung hinwegziehbar. Mit anderen Worten berührt der Vorsprung den Rand der Ausgießöffnung und kann ihn gegebenenfalls sogar deformieren. Infolge der elastischen Verformbarkeit des Materials des Randes der Ausgießöffnung nimmt der Rand nach dem vollständigen Öffnen der Verschlußlasche seinen vorherigen Zustand wieder ein, so daß sich beim Loslassen des Griffes der Vorsprung auf dem Rand der Ausgießöffnung abstützt. Dadurch hat die Offenhalteeinrichtung ihre Funktion voll entfaltet.If the closure flap is pivoted up around the hinge when opening, the projection for the hold-open device can be pulled over the edge of the pouring opening. In other words, the projection touches the edge of the pouring opening and may even deform it. As a result of the elastic deformability of the material of the rim of the pouring opening, the rim returns to its previous state after the closure flap has been fully opened, so that the projection is supported on the rim of the pouring opening when the handle is released. As a result, the hold-open device has its Function fully developed.
Aber auch das Wiederverschließen ist bei dieser Öffnungsvorrichtung trotz der neuen Offenhalteeinrichtung ohne Schwierigkeiten möglich. Der Benutzer kann die Verschlußlasche aus der Öffnungsposition durch leichten Druck in Schließposition bringen, und hierbei ist der Vorsprung in analoger Weise beim Schließen über den Rand der Ausgießöffnung hinwegdrückbar. Befindet sich die Verschlußlasche wieder in der Schließposition, dann ist der Vorsprung innerhalb der Verpackung, nämlich direkt unterhalb der Verschlußlasche angeordnet, so daß er von außen nicht beschädigt werden kann.However, the opening device can also be reclosed without difficulty despite the new hold-open device. The user can bring the closure flap from the open position into the closed position by light pressure, and here the projection can be pushed over the edge of the pouring opening in an analogous manner when closing. If the closure tab is again in the closed position, the projection is arranged inside the packaging, namely directly below the closure tab, so that it cannot be damaged from the outside.
Günstig ist es erfindungsgemäß dabei, wenn der Vorsprung am Rand der Verschlußlasche von ihrer Mitte nach außen schräg angestellt ist. Der Tubus der Packung hat eine im wesentlichen vertikal anzunehmende Längsmittelachse, gegenüber welcher der Vorsprung im Sinne des zuletzt erwähnten Merkmales schräg angestellt ist. Der Vorsprung am Rand der Verschlußlasche schließt also zur Tubusachse der Verpackung einen Winkel ein, der im Bereich von 0 bis 30 °, vorzugsweise 5 bis 20°, liegt und bei einer besonders bevorzugten Ausführungsform etwa 15° beträgt. Hierdurch stützt sich der Vorsprung besonders zuverlässig auf dem Rand der Ausgießöffnung ab und kann gleichwohl während der Öffnungs- und der Schließbewegung unter leichter Deformierung der aneinandervorbeigleitenden Teile ohne Beschädigung bewegt werden.It is advantageous according to the invention if the projection on the edge of the closure flap is inclined from its center to the outside. The tube of the pack has an essentially vertical longitudinal center axis, against which the projection is inclined in the sense of the last-mentioned feature. The projection on the edge of the closure flap thus encloses an angle with the tube axis of the packaging, which is in the range from 0 to 30 °, preferably 5 to 20 °, and in a particularly preferred embodiment is approximately 15 ° . As a result, the projection is supported particularly reliably on the edge of the pouring opening and can nevertheless be moved without damage during the opening and closing movement with slight deformation of the parts sliding past one another.
Die Erfindung ist vorteilhaft weiter dadurch ausgestaltet, daß auf jeder Seite des Scharniers und in dessen Nähe wenigstens ein stiftförmiger Vorsprung angebracht ist. Die Ausgestaltung des Vorsprunges als Stift hat sich in der Praxis als besonders einfach und zuverlässig erwiesen. Gleichwohl kann man dem Vorsprung auch die Gestalt eines Wulstes, einer Nadel, einer erhabenen Halbkugel oder einer Kante geben. Außerdem ist es zweckmäßig, den Vorsprung in der Nähe des Scharniers anzuordnen, wie dies in ähnlicher Weise schon bei der bekannten Einrasteinrichtung mit den zwei ineinander sich verhakenden Teilen (Rastwulst und Nase) vorgesehen war. Um ein sehr zuverlässiges Offenhalten der Verschlußlasche in ihrer Öffnungsposition vorzusehen ist es aber besonders zweckmäßig, auf jeder Seite des Scharniers einen solchen Vorsprung anzubringen, weil die Verschlußlasche über ihre gesamte Breite dann in definierter Lage gehalten wird. Im Sinne dieser Lehre hat das eingangs beschriebene, geradlinige Scharnier, welches sich über die Breite der Verschlußlasche erstreckt, eine Seite am Anfang der Breite, und die andere Seite am Ende der sich quer über die Verschlußlasche erstreckenden Linie. In diesem Sinne befindet sich also ein Vorsprung am einen Ende des geradlinigen, länglichen Scharniers, und der andere Vorsprung befindet sich am gegenüberliegenden Ende.The invention is advantageously further developed in that at least one pin-shaped projection is attached to each side of the hinge and in the vicinity thereof. The design of the projection as a pen has proven to be particularly simple and reliable in practice. Nevertheless, the projection can also be given the shape of a bead, a needle, a raised hemisphere or an edge. In addition, it is expedient to arrange the projection in the vicinity of the hinge, as was already provided in a similar manner in the known snap-in device with the two interlocking parts (locking bead and nose). In order to provide a very reliable keeping of the locking tab in its open position, however, it is particularly expedient to provide such a projection on each side of the hinge, because the locking tab is then held in a defined position over its entire width. For the purposes of this teaching, the straight-line hinge described at the outset, which extends over the width of the closure flap, has one side at the beginning of the width and the other side at the end of the line extending transversely across the closure flap. In this sense, there is a protrusion at one end of the straight elongate hinge and the other protrusion is at the opposite end.
Verschiedene Versuche haben gezeigt, daß die erfindungsgemäßen Maßnahmen besonders günstig dann gewählt sind, wenn der Rand der Ausgießöffnung elastischer ist als der Vorsprung. Der Vorsprung und der an der Verschlußlasche befindliche Befestigungsrand für den Vorsprung besteht zwar auch aus dem Kunststoff, aus welchem der gesamte Deckel gespritzt ist, die Ausgestaltung der vorsprungseitigen Teile ist aber so gewählt, daß sich hier beim Berühren und Aneinandergleiten der Teile, nämlich Vorsprung einerseits und Rand der Ausgießöffnung andererseits immer dann, wenn die Verschlußlasche in die Öffnungsposition oder umgekehrt aus letzterer in die Verschließposition gebracht wird, der Rand der Ausgießöffnung mehr deformiert wird als der Vorsprung. Dadurch kann man die Öffnungsvorrichtung gut wiederverschließen, weil sich der Vorsprung besonders günstig und formstabil am Rand der Ausgießöffnung nach innen vorbeidrückt. In besonders einfacher Weise hat man diese unterschiedliche Ausgestaltung bei einer bevorzugten Ausführungsform dadurch erreicht, daß der im Bereich des Scharnieres befindliche Rand der Ausgießöffnung dünner ausgestaltet wird als der andere, im wesentlichen U-förmige bis im wesentlichen V-förmige Rand der Ausgießeinrichtung, wenn man von oben auf diese und senkrecht auf ihre Ebene blickt. Der vordere Rand der Ausgießöffnung, insbesondere im Bereich der vorderen Ausgießspitze am tüllenseitigen Ende der Ausgießöffnung ist also dicker und steifer ausgestaltet als hinten, d.h. als im Bereich des Scharniers. Ein solches dünneres Ausgestalten eines Randteiles hinten im Vergleich zu vorn ist durch Schrägen des Spritzwerkzeuges sehr leicht erreichbar. Der dünnere Randteil verbiegt sich dann leichter, wie man gut versteht.Various tests have shown that the measures according to the invention are selected particularly favorably when the edge of the pouring opening is more elastic than the projection. The projection and the fastening edge located on the closure flap for the projection is also made of the plastic from which the entire cover is injection molded, but the design of the parts on the projection side is selected so that when the parts touch and slide against one another, namely the projection on the one hand and the edge of the pouring opening, on the other hand, whenever the closure flap is brought into the opening position or vice versa from the latter into the closing position, the edge of the pouring opening is deformed more than the projection. This makes it easy to reclose the opening device because the projection presses past the edge of the pouring opening in a particularly inexpensive and dimensionally stable manner. This different configuration has been achieved in a particularly simple manner in a preferred embodiment in that the edge of the pouring opening located in the region of the hinge is made thinner than the other, substantially U-shaped to substantially V-shaped edge of the pouring device when looks at them from above and perpendicular to their plane. The front edge of the pouring opening, in particular in the region of the front pouring tip at the spout-side end of the pouring opening, is therefore thicker and stiffer than at the rear, i.e. than in the area of the hinge. Such a thinner design of an edge part at the rear compared to the front can be achieved very easily by slanting the injection mold. The thinner edge part then bends more easily, as is well understood.
Vorteilhaft ist es erfindungsgemäß ferner, wenn der Rand der Ausgießöffnung wenigstens im Bereich des Scharniers gegenüber der Ebene der Ausgießöffnung nach innerhalb der Packung schräg angestellt ist. Oben wurde erwähnt, daß man erfindungsgemäß den Vorsprung nach außen schräg anstellen kann. Alternativ oder vorzugsweise zusätzlich kann man aber auch den Rand der Ausgießöffnung selbst unter einem ähnlichen Winkel zur Tubusachse schräg anstellen. Dadurch wird eine besonders gute Stabilisierung beim Offenhalten erreicht, weil der Vorsprung, der vorzugsweise die Gestalt eines Hornes haben kann, dann wiederum senkrecht auf eine Stützfläche zu stehen kommt, wenn sich die Verschlußlasche in der Öffnungsposition befindet. Trotz dieser sehr stabilen Offenhalteposition gelingt das Wiederverschließen aber sehr leicht, weil sich der stiftförmige oder hornförmige Vorsprung leicht an diesem schräg angestellten Rand der Ausgießöffnung vorbeidrükken läßt.It is also advantageous according to the invention if the edge of the pouring opening is inclined at least in the area of the hinge with respect to the plane of the pouring opening towards the inside of the package. It was mentioned above that according to the invention the projection can be inclined outwards. Alternatively or preferably in addition, the edge of the pouring opening can also be inclined at a similar angle to the tube axis. This results in a particularly good stabilization when keeping open, because the projection, which can preferably have the shape of a horn, then again comes to stand vertically on a support surface when the locking tab is in the open position. Despite this very stable hold-open position, resealing is very easy because the pin-shaped or horn-shaped projection is slightly inclined on it press the set edge of the pouring opening.
Die Öffnungsvorrichtung gemäß der Erfindung mit den vorstehend beschriebenen Maßnahmen ist besonders dann zweckmäßig, wenn erfindungsgemäß der Deckel im wesentlichen eben und aus Kunststoff geformt ist. Hierfür eignen sich besonders gut Thermoplaste, wie an sich bekannt ist.The opening device according to the invention with the measures described above is particularly expedient if, according to the invention, the cover is essentially flat and made of plastic. Thermoplastics, as is known per se, are particularly suitable for this.
Weitere Vorteile, Merkmale und Anwendungsmöglichkeiten der vorliegenden Erfindung ergeben sich aus der folgenden Beschreibung in Verbindung mit den anliegenden Zeichnungen, welche eine bevorzugte Ausführungsform der Erfindung wiedergeben. Es zeigen:
- Figur 1 perspektivisch die Draufsicht auf den Deckel einer Flüssigkeitspackung und
Figur 2 die gleiche Darstellung wie in Figur 1, wobei jedoch die Verschlußlasche in der Offenhalteposition gezeigt ist.
- Figure 1 is a perspective top view of the lid of a liquid pack and
- Figure 2 shows the same representation as in Figure 1, but with the closure tab shown in the open position.
Der im wesentlichen ebene Deckel wird senkrecht zur Längsmittelachse 1 des nicht dargestellten Tubus der Packung angeordnet, wobei diese Tubusachse 1 strichpunktiert in Figur 1 dargestellt ist und senkrecht auf der gestrichelt gezeichneten Linie des Scharniers 2; aber auch senkrecht auf der ebenfalls gestrichelt gezeichneten Längsmittelachse 3 der Ausgießöffnung 4 steht. Man erkennt insbesondere in Figur 2 den in Draufsicht etwa schiffchenförmigen Rand 5 der Ausgießöffnung 4, der parallel unter dem Rand 6 der Verschlußlasche 7 angeordnet ist.The essentially flat cover is arranged perpendicular to the longitudinal central axis 1 of the tube of the pack, not shown, this tube axis 1 being shown in dash-dot lines in FIG. 1 and perpendicularly on the dashed line of the
Nur dar Vollständigkeit halber wird erwähnt, daß der dargestellte Deckel eine äußere erste Ebene 8 und eine im Abstand a von dieser nach unten in Richtung der Tubusachse 1 versetzt angeordnete zweite innere Ebene 9 hat, in welcher die Gießkante 10 liegt, die sich nahe der Spitze 11 der Ausgießöffnung 4 auf der Ausgießseite befindet.For the sake of completeness only, it is mentioned that the lid shown has an outer
Im Bereich des Scharniers 2 ist auf jeder Seite desselben ein horn- bzw. stiftartiger Vorsprung 12 am unteren Rand 6 der Verschlußlasche 7 angebracht gezeigt. Dieser stiftförmige Vorsprung 12 steht in der geschlossenen Position der Verschlußlasche 7 gemäß Figur 1 nahezu unsichtbar in Richtung Innenraum der Packung. Der stiftförmige Vorsprung 12 ist unter einem Winkel von 10 gegenüber der Tubusachse 1 angestellt und steht senkrecht auf dem ebenfalls schräg angestellten Rand 5 der Ausgießöffnung 4 in der Öffnungsposition der Figur 2 auf. Damit stützt der Rand 5 der Ausgießöffnung 4 über den stiftförmigen Vorsprung 12 die gemäß Figur 2 in Öffnungsposition befindliche Verschlußlasche 7 ab. Nach dem Öffnen kann der Verbraucher das Füllgut in Ruhe ausgießen, ohne daß er ein Zuklappen der Verschlußlasche 7 befürchten muß.In the area of the
Nach dem Ausgießen drückt der Verbraucher, wenn er dies wünscht, die Verschlußlasche 7 so auf die Ausgießöffnung 4 herunter, daß die Wiederverschließposition erreicht ist, die in den Figuren allerdings nicht dargestellt wurde. Bei dieser Schließbewegung schwenkt die Verschlußlasche 7 um das Scharnier 2 im Uhrzeigersinn, wenn man in Richtung des geradlinigen Scharniers blickt, d.h. in den dargestellten Figuren von vorn links nach hinten rechts. Bei dieser Schließbewegung wird der stiftförmige Vorsprung 12 im wesentlichen in seiner Position gehalten, während der Rand 5 der Ausgießöffnung 4 im Bereich des Scharniers 2 deformiert wird, so daß der Vorsprung 12 am Rand 5 vorbeigedrückt werden kann. Nach dem Öffnen stellt sich der Rand 5 der Ausgießöffnung 4 wieder in seine Herstellungsgestalt auf und ist wiederum in der Lage, die Verschlußlasche 7 in der Position der Figur 2 in der Offenhaltestellung abzustützen.After pouring out, the consumer presses the
Diese Bewegungen und Funktionen der Offenhalteeinrichtung gelingen sicherlich mehrere Male, bis das Füllgut aus der Einwegpackung entleert ist. Es wird eine gute Stabilisierung der Schwenkteile zueinander erreicht, und eine Beschädigung im geschlossenen Zustand der Verschlußlasche 7 ist unmöglich, weil der Vorsprung 12 nicht nach außen sondern nach innen ragt.These movements and functions of the hold-open device certainly succeed several times until the contents are emptied from the disposable package. A good stabilization of the swivel parts relative to one another is achieved, and damage in the closed state of the
- 1 Längsmittelachse, Tubusachse1 longitudinal central axis, tube axis
- 2 Scharnier2 hinge
- 3 Längsmittelachse3 longitudinal central axis
- 4 Ausgießöffnung4 pouring opening
- 5 Rand5 rand
- 6 Rand6 rand
- 7 Verschlußlasche7 locking tab
- 8 äußere erste Ebene8 outer first level
- 9 zweite innere Ebene9 second inner level
- 10 Gießkante10 pouring edge
- 11 Spitze11 top
- 12 Vorsprung12 head start
- a Abstanda distance
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3197/92 | 1992-10-13 | ||
| CH3197/92A CH685550A5 (en) | 1992-10-13 | 1992-10-13 | Opening device on the cover of a flow agent package. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0597246A2 true EP0597246A2 (en) | 1994-05-18 |
| EP0597246A3 EP0597246A3 (en) | 1994-12-28 |
| EP0597246B1 EP0597246B1 (en) | 1997-12-03 |
Family
ID=4250761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93116123A Expired - Lifetime EP0597246B1 (en) | 1992-10-13 | 1993-10-06 | Opening device on the cover of a package for liquid products |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5791508A (en) |
| EP (1) | EP0597246B1 (en) |
| JP (1) | JP3496032B2 (en) |
| AT (1) | ATE160749T1 (en) |
| CH (1) | CH685550A5 (en) |
| DE (1) | DE59307782D1 (en) |
| GR (1) | GR3025900T3 (en) |
| NZ (1) | NZ248928A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6932249B1 (en) | 2003-02-26 | 2005-08-23 | Owens-Illinois Closure Inc. | Toggle-action dispensing closure, package and method of making |
| CN103640778A (en) * | 2013-11-22 | 2014-03-19 | 中山环亚塑料包装有限公司 | Plastic cover with leakage-proof liquid pouring opening |
| WO2022217766A1 (en) * | 2021-04-16 | 2022-10-20 | 佛山印象包装有限公司 | Disc top cap |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD412265S (en) * | 1998-08-17 | 1999-07-27 | Hall Jr Charles E | Container lid having a double-pour spout |
| EP1250264A4 (en) * | 1999-12-14 | 2004-07-21 | Double H Plastics Inc | Stackable hinged container lid having detents |
| EP1160172B1 (en) * | 2000-05-30 | 2004-09-29 | Tetra Laval Holdings & Finance S.A. | Opening device for a package for pourable food products, and package including the same |
| US6382743B1 (en) | 2001-03-19 | 2002-05-07 | Go-Plastics Inc. | Door-hinging system for news-stands |
| US20040195238A1 (en) * | 2003-04-01 | 2004-10-07 | Spring Usa Corporation | Hinged pot cover |
| US8517212B2 (en) | 2011-05-05 | 2013-08-27 | Sonoco Development, Inc. | Overcap for a container |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3262606A (en) * | 1963-07-29 | 1966-07-26 | Neil S Waterman | Container closure |
| EP0004075B1 (en) * | 1978-03-11 | 1980-10-29 | Henkel Kommanditgesellschaft auf Aktien | Dispensing lid for a container for pulverulent material |
| WO1990005093A1 (en) * | 1988-11-02 | 1990-05-17 | Pittway Corporation | Closure with dispensing applicator |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3372832A (en) * | 1966-06-17 | 1968-03-12 | Yeater Thomas | Removable cover for containers |
| US3675812A (en) * | 1970-05-13 | 1972-07-11 | Clark Mfg Co J L | Plastic cover with hinged closure and molding dies therefor |
| US3737066A (en) * | 1971-09-15 | 1973-06-05 | J Ames | Container construction |
| US4103804A (en) * | 1975-10-06 | 1978-08-01 | Fournier E P | Clamp action sealing device for tab opening cans |
| US4144985A (en) * | 1978-05-22 | 1979-03-20 | Ethyl Development Corporation | Closure fastening means |
| US4361250A (en) * | 1981-06-26 | 1982-11-30 | J. L. Clark Manufacturing Co. | Plastic container closure |
| IT8353532V0 (en) * | 1983-06-30 | 1983-06-30 | Ferrero Spa | CONTAINER FOR SMALL OBJECTS PARTICULARLY TABLETS AND SIMILAR CONFECTIONERY PRODUCTS |
| US4874103A (en) * | 1986-10-01 | 1989-10-17 | Winfield Corporation | Receptacle for receiving infectious waste material |
| US4858793A (en) * | 1988-08-22 | 1989-08-22 | Packaging Corporation Of America | Pour spout closure |
| US4949865A (en) * | 1990-01-02 | 1990-08-21 | Williams Industries, Inc. | Container lid with integral stopper |
| US5203467A (en) * | 1990-10-15 | 1993-04-20 | Terence Tucker | Protective cap with seal for beverage container |
| US5125525A (en) * | 1990-10-15 | 1992-06-30 | Terence Tucker | Protective cap for beverage containers |
-
1992
- 1992-10-13 CH CH3197/92A patent/CH685550A5/en not_active IP Right Cessation
-
1993
- 1993-10-06 DE DE59307782T patent/DE59307782D1/en not_active Expired - Lifetime
- 1993-10-06 AT AT93116123T patent/ATE160749T1/en not_active IP Right Cessation
- 1993-10-06 EP EP93116123A patent/EP0597246B1/en not_active Expired - Lifetime
- 1993-10-12 NZ NZ248928A patent/NZ248928A/en unknown
- 1993-10-12 US US08/135,026 patent/US5791508A/en not_active Expired - Fee Related
- 1993-10-13 JP JP28062193A patent/JP3496032B2/en not_active Expired - Lifetime
-
1998
- 1998-01-14 GR GR980400073T patent/GR3025900T3/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3262606A (en) * | 1963-07-29 | 1966-07-26 | Neil S Waterman | Container closure |
| EP0004075B1 (en) * | 1978-03-11 | 1980-10-29 | Henkel Kommanditgesellschaft auf Aktien | Dispensing lid for a container for pulverulent material |
| WO1990005093A1 (en) * | 1988-11-02 | 1990-05-17 | Pittway Corporation | Closure with dispensing applicator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6932249B1 (en) | 2003-02-26 | 2005-08-23 | Owens-Illinois Closure Inc. | Toggle-action dispensing closure, package and method of making |
| CN103640778A (en) * | 2013-11-22 | 2014-03-19 | 中山环亚塑料包装有限公司 | Plastic cover with leakage-proof liquid pouring opening |
| WO2022217766A1 (en) * | 2021-04-16 | 2022-10-20 | 佛山印象包装有限公司 | Disc top cap |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06345081A (en) | 1994-12-20 |
| US5791508A (en) | 1998-08-11 |
| CH685550A5 (en) | 1995-08-15 |
| JP3496032B2 (en) | 2004-02-09 |
| EP0597246A3 (en) | 1994-12-28 |
| ATE160749T1 (en) | 1997-12-15 |
| GR3025900T3 (en) | 1998-04-30 |
| NZ248928A (en) | 1995-04-27 |
| EP0597246B1 (en) | 1997-12-03 |
| DE59307782D1 (en) | 1998-01-15 |
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