EP0048931B1 - Bottle pourer - Google Patents

Bottle pourer Download PDF

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Publication number
EP0048931B1
EP0048931B1 EP81107523A EP81107523A EP0048931B1 EP 0048931 B1 EP0048931 B1 EP 0048931B1 EP 81107523 A EP81107523 A EP 81107523A EP 81107523 A EP81107523 A EP 81107523A EP 0048931 B1 EP0048931 B1 EP 0048931B1
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EP
European Patent Office
Prior art keywords
pouring spout
opening
retaining
wall
spout according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81107523A
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German (de)
French (fr)
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EP0048931A1 (en
Inventor
Hans Heinlein
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Individual
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Individual
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Priority to AT81107523T priority Critical patent/ATE14862T1/en
Publication of EP0048931A1 publication Critical patent/EP0048931A1/en
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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
    • 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
    • B65D47/12—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having removable closures
    • B65D47/122—Threaded caps
    • B65D47/123—Threaded caps with internal parts
    • 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
    • B65D47/18—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages for discharging drops; Droppers

Definitions

  • the invention relates to a machine into the mouth opening of closable, bottle-like containers, insertable pourer made of plastic, with a sealing flange at least partially covering the edge of the mouth opening and a hollow cylinder-like wall part which bears against the inner wall of the mouth opening.
  • Bottles are also known whose mouth opening is larger in the upper area than in a lower area facing the bottle interior. Again, it is difficult to anchor the pourer or insert in the mouth opening with sufficient holding force.
  • the invention is based on the object of designing a pourer of the type described at the outset in such a way that a secure anchoring of the pourer in the mouth opening is achieved even within a relatively large tolerance range without having to use a greater closing force than that required to apply the closure cap itself is required. Furthermore, the pourer should be designed in such a way that it can also be used in conjunction with other metering devices and can be easily produced in large quantities.
  • This object is essentially achieved by the invention in a pourer of the type described at the outset by providing at least two radially extending, elastic holding struts and an inner cylinder part, along which the radially extending holding struts extend over part of their axial inner length. while the respective outer edges of the holding struts extend in the extension of the hollow cylindrical wall part and resiliently apply to the inner wall of the mouth opening with a holding pressure which is greater than the holding force on a holder which introduces the pourer into the mouth opening of the container.
  • the holding struts connect with their upper edges to the lower edge of the hollow cylindrical wall part.
  • the inner cylinder part For connection to the cap before and during the assembly process, it is expedient for the inner cylinder part to protrude into the interior of the hollow cylindrical wall part with a fixed jacket section.
  • the inner cylinder part extends approximately to the level of the lower sealing flange surface covering the edge of the mouth opening.
  • each holding strut has a radially inwardly directed step on its lower edge region, which is characterized by a first oblique edge and a subsequent, approximately axially parallel edge is formed.
  • the axial length of the holding struts is dimensioned such that the holding struts overlap the narrowest point of the constriction.
  • the inner cylinder part is provided with an opening whose inner diameter corresponds to the outside diameter of a mandrel of the assembly tool or the cap.
  • the insert can also be used to dispense meterable quantities of the container contents, it being advantageous for a metering element to be inserted in the inner cylinder part.
  • the metering element is designed as a drip insert, with a liquid discharge opening, ei ner in a cavity of the drip insert liquid inlet opening and at least one air inlet opening in the container.
  • the holding struts extend at their upper ends into an annular channel formed by the outer walls of the cylindrical part and the inside of the hollow cylindrical wall part.
  • the inner surface of the inner cylinder part has stepped sealing surfaces which interact with form-fitting, complementary sealing surfaces on the outer wall of the drip insert.
  • the free inside diameter of the liquid discharge opening of the metering element corresponds to the outside diameter of a mandrel of the assembly tool or the cap.
  • the pouring spout according to the invention is simple to produce if the holding struts are formed in one piece with the inner cylinder part.
  • the sealing flange has an upper annular groove, which cooperates elastically with the assembly tool and / or an annular bead in the inner surface of the cap.
  • FIG. 1 shows an exemplary embodiment in which a pourer 11 has already been inserted into a mouth opening 2 of a neck 3 of a container 1, for example a bottle.
  • the container 1 can have an external thread 4 on its neck and a transfer ring 5.
  • a cap 6 with an internal thread 7 and a central pin or mandrel 10 and / or an annular bead 9 on the inner base 8 can be connected to the container 1.
  • the pourer 11 has a sealing flange 13 which at least partially covers an edge 12 of the mouth opening 2 of the container 1.
  • the pourer 11 has a hollow cylindrical wall part 15 which bears against the inner wall 14 of the mouth opening 2.
  • the pourer 11 is provided with holding struts 16, 17 and 18 which, with their outer longitudinal edges 20, 21 and 22, press against the inner wall 14 of the mouth opening 2 of the container 1.
  • the holding struts 16, 17 and 18 are connected to an inner cylindrical part 19, preferably formed in one piece, a free jacket section 23 of the inner cylindrical part 19 extending into the region of the hollow cylindrical wall part 15 of the spout 11, preferably up to that through the lower surface of the sealing flange 13 formed level.
  • the struts 16, 17 and 18 are provided at their lower ends with steps 24, which are formed by a bevel edge 25 and an adjoining axially parallel edge 26.
  • the axial length of the holding struts 16, 17 and 18 is selected such that the holding struts 16, 17 and 18 overlap the narrowest point 37, i. H. the axial length of the holding struts 16, 17 and 18 is greater than the distance of the constriction 37 from the upper edge 12 of the mouth opening.
  • the sealing flange 13 of the spout 11 has an upper annular groove 36 which cooperates with the annular bead 9 in the cap 6, such that before the cap 6 is screwed onto the bottle 1, the spout 11 has a positive fit. is held elastically in the cap 6.
  • the cap 6 can be provided with gripping grooves or gripping ribs (not shown) in order to facilitate screwing on and unscrewing by the user.
  • the cap 6 can also have a tamper-evident device (not shown) which interacts, for example, with the transfer ring 5.
  • a spout 11 can be clearly seen from the perspective oblique view of FIG. 2.
  • three struts 16, 17, 18 are provided, which are formed triangularly or star-shaped at the same angular distances on the inner cylinder part 19.
  • the design is such that the upper edges of the holding struts 16, 17, 18 connect to the lower edge of the hollow cylindrical wall part 15.
  • the inner cylinder part 19 is designed as a hollow cylinder and has a continuous opening 27.
  • the inside diameter of the opening 27 is chosen such that it corresponds to the outside diameter of the mandrel or the pin 10 of the cap 6, so that the spout 11 is held in the cap 6 in an elastically clamping manner until the closing process or the screwing-on process has ended.
  • the direction of the holding struts 16, 17, 18 and their outer diameter is selected such that the contact force on the inner wall 14 of the mouth opening 2 is greater than the holding force between the inner cylindrical part 19 and the central pin or mandrel 10 of the cap 6.
  • the design is such that a drip insert 28 can be inserted into the inner cylindrical part 19.
  • the struts 16, 17, 18 extend into an annular channel 33, which is between the outer wall of the inner cylinder rule's part 19 and the inner wall of the hollow cylindrical wall part 15 is formed.
  • the drip insert 28 has, in a manner known per se, a liquid discharge opening 29 and a liquid inlet opening 30 which extends into the container 1.
  • At least one air inlet opening 32 is provided in the wall area 31 of the drip insert 28, which creates a connection between the outside air and the interior of the container.
  • the drop size can be determined.
  • a stepped sealing surface 34 is expediently provided on the inner cylindrical part 19, which interacts with a complementary stepped sealing surface 35 on the drip insert 28.
  • the sealing flange 13 with the hollow cylindrical wall part 15 on the one hand and the holding struts 16, 17, 18 and the inner cylindrical part 19 are expediently made in one piece from elastic plastic.
  • the holding struts 16, 17 and 18 which can adapt elastically resiliently to the diameter tolerances of the mouth opening 2, a substantially greater axial contact of parts of the pouring insert 11 in the mouth opening 2 is ensured than is possible solely with the hollow cylindrical wall part 15 would be possible. Since the lower ends of the holding struts 16, 17 and 18 protrude freely into the mouth opening 2, they can expand radially elastically or be compressed accordingly in the case of minus tolerances. The required adhesive force between insert 11 and mouth opening 2 is ensured in any case. The relatively narrow holding struts 16, 17 and 18 do not impede the pouring process or the dripping process when using a drip insert 28.
  • the pourer 11 according to the invention can of course also be used in containers 1 which have no screw thread and are closed, for example, with an elastic snap cap.
  • the annular bead 9 on the lower base 8 of the cap 6 can also perform additional sealing tasks in cooperation with the upper annular groove 36 in the sealing flange 13.

Abstract

1. Pouring spout (11) made of plastics material which can be inserted mechanically into the opening (2) of bottle-like containers (1) which can be sealed by a cap (6), the said spout comprising a sealing flange (13), which at least partially covers the edge (12) of the opening (2), and a hollow cylinder-like wall element (15) which presses against the inner wall (14) of the opening (2), characterised by at least two radially extending flexible retaining struts (16, 17 or 18) and by an inner cylindrical element (19), along which the radial retaining struts (16, 17, 18) extend for part of their axial inner length, whilst the respective outer edges (20, 21, 22) of the retaining struts (16, 17, 18) extend through the continuation of the hollow cylinder-like wall element (15) and are pressed flexibily against the inner wall (14) of the opening (2) by a retaining pressure which is greater than the retaining force on a holder which introduces the pouring spout into the opening (2) of the container (1).

Description

Die Erfindung betrifft einen maschinell in die Mundöffnung von mit einer Kappe verschliessbaren, flaschenartigen Behältern, einsetzbaren Ausgiesser aus Kunststoff, mit einem den Rand der Mundöffnung mindestens teilweise bedeckenden Dichtungsflansch und einem sich an die Innenwand der Mundöffnung anlegenden, hohlzylinderartigen Wandteil.The invention relates to a machine into the mouth opening of closable, bottle-like containers, insertable pourer made of plastic, with a sealing flange at least partially covering the edge of the mouth opening and a hollow cylinder-like wall part which bears against the inner wall of the mouth opening.

Es ist bekannt, in die Mundöffnung flaschenartiger Behälter Ausgiesser oder dergl. Einsätze maschinell einzuführen, wobei diese Ausgiesser beispielsweise in einer Kappe angeordnet sind und zusammen mit der Kappe auf einen Behälter mittels einer Verschliessmaschine aufgebracht werden, oder die Ausgiesser werden durch ein Montagewerkzeug in den Behältermund eingeführt, wobei sich der Ausgiesser in der Mundöffnung durch elastische Kräfte festklemmen soll (US-PS 3318496, DE-OS 1 939026). Desweiteren ist ein Ausgiesser mit einem gleichlangen inneren und äusseren Zylinderteil und dazwischen radial angeordneten Haltestreben aus der US-PS 2 750 063 bekannt. Bei einem derartigen Ausgiesser ist jedoch der Durchmesser des äusseren Zylinderteils fest vorgegeben. Bei der Montage dieser vorgenannten Ausgiesser treten häufig Schwierigkeiten dadurch auf, dass die flaschenartigen Behälter besonders grosse Toleranzen aufweisen. Sind die Toleranzen positiv, d.h. ist der Innendurchmesser grösser, als es dem Sollmass entspricht, dann besteht die Möglichkeit, dass die Ausgiesser in der Kappe hängen bleiben. Sind die Toleranzen negativ, d.h. ist der Innendurchmesser der Mundöffnung kleiner als der Durchmesser des Einsatzes, dann müssen beim Einführen des Einsatzes in die Mundöffnung erhebliche Kräfte aufgewendet werden, so dass die Gefahr besteht, dass die Verschraubung der Kappe darunter leidet.It is known to mechanically insert pourers or similar inserts into the mouth opening of bottle-like containers, these pourers being arranged, for example, in a cap and being applied together with the cap to a container by means of a sealing machine, or the pourers are inserted into the container mouth using an assembly tool introduced, wherein the pourer should clamp in the mouth opening by elastic forces (US-PS 3318496, DE-OS 1 939026). Furthermore, a pourer with an equally long inner and outer cylinder part and radially arranged holding struts is known from US Pat. No. 2,750,063. With such a pourer, however, the diameter of the outer cylinder part is fixed. When assembling these pourers mentioned above, difficulties often arise because the bottle-like containers have particularly large tolerances. Are the tolerances positive, i.e. If the inside diameter is larger than the nominal size, there is a possibility that the spouts will get caught in the cap. Are the tolerances negative, i.e. If the inside diameter of the mouth opening is smaller than the diameter of the insert, then considerable forces must be applied when inserting the insert into the mouth opening, so that there is a risk that the screw connection of the cap will suffer as a result.

Darüber hinaus kann bei positiver Toleranz noch die Gefahr auftreten, dass beim Ausgiessen des Füllgutes aus dem Behälter der Ausgiesser mit herausgeschwemmt wird. Da bei einem derartigen Vorgang damit zu rechnen ist, dass der Benutzer den Ausgiesser nicht wieder einsetzt, fehlt die notwendige Dichtung zwischen flaschenartigem Behälter und Kappe nach dem Wiederverschluss des Behälters durch den Benutzer.In addition, if there is a positive tolerance, there may still be the danger that the pourer will also be washed out when the filling material is poured out of the container. Since such a process is likely to result in the user not reinserting the pouring spout, the necessary seal between the bottle-like container and the cap is missing after the user has reclosed the container.

Es sind ferner Flaschen bekannt, deren Mundöffnung im oberen Bereich grösser ist, als in einem unteren, dem Flascheninneren zugewandten Bereich. Auch hier ist es schwierig, den Ausgiesser oder Einsatz mit einer ausreichenden Haltekraft in der Mundöffnung zu verankern.Bottles are also known whose mouth opening is larger in the upper area than in a lower area facing the bottle interior. Again, it is difficult to anchor the pourer or insert in the mouth opening with sufficient holding force.

Der Erfindung liegt die Aufgabe zugrunde, einen Ausgiesser der eingangs erläuterten Art derart auszubilden, dass auch innerhalb eines grösseren Toleranzbereiches eine sichere Verankerung des Ausgiessers in der Mundöffnung erzielt wird, ohne dass eine grössere Verschliesskraft aufgewendet werden muss, als sie zum Aufbringen der Verschlusskappe an sich erforderlich ist. Ferner soll der Ausgiesser derart ausgebildet sein, dass er auch in Verbindung mit anderen Dosiereinrichtungen verwendet werden kann und in grossen Stückzahlen einfach herstellbar ist.The invention is based on the object of designing a pourer of the type described at the outset in such a way that a secure anchoring of the pourer in the mouth opening is achieved even within a relatively large tolerance range without having to use a greater closing force than that required to apply the closure cap itself is required. Furthermore, the pourer should be designed in such a way that it can also be used in conjunction with other metering devices and can be easily produced in large quantities.

Diese Aufgabe wird durch die Erfindung bei einem Ausgiesser der eingangs erläuterten Art im wesentlichen dadurch gelöst, dass mindestens zwei sich radial erstreckende, elastische Haltestreben vorgesehen sind sowie ein innerer Zylinderteil, entlang dessen sich die radial erstreckenden Haltestreben über einen Teil ihrer axialen inneren Länge erstrecken, während die jeweils aussen befindlichen Kanten der Haltestreben in der Verlängerung des hohlzylinderartigen Wandteiles verlaufen und sich an die Innenwandung der Mundöffnung elastisch mit einem Haltedruck anlegen, der grösser ist als die Haltekraft an einer den Ausgiesser in die Mundöffnung des Behälters einführenden Halterung.This object is essentially achieved by the invention in a pourer of the type described at the outset by providing at least two radially extending, elastic holding struts and an inner cylinder part, along which the radially extending holding struts extend over part of their axial inner length. while the respective outer edges of the holding struts extend in the extension of the hollow cylindrical wall part and resiliently apply to the inner wall of the mouth opening with a holding pressure which is greater than the holding force on a holder which introduces the pourer into the mouth opening of the container.

Obwohl in einfachen Fällen zwei diagonal angeordnete Haltestreben ausreichend sind, ist es gemäss einem bevorzugten Ausführungsbeispiel der Erfindung vorteilhaft, wenn drei Haltestreben sternförmig unter gleichen Winkelabständen angeordnet sind.Although two diagonally arranged holding struts are sufficient in simple cases, it is advantageous according to a preferred exemplary embodiment of the invention if three holding struts are arranged in a star shape at equal angular distances.

Nach einem ersten Ausführungsbeispiel der Erfindung schliessen sich die Haltestreben mit ihren Oberkanten an die Unterkante des hohlzylinderartigen Wandteiles an.According to a first embodiment of the invention, the holding struts connect with their upper edges to the lower edge of the hollow cylindrical wall part.

Zur Verbindung mit der Kappe vor und während des Montagevorganges ist es zweckmässig, dass der innere Zylinderteil mit einem festen Mantelabschnitt in das Innere des hohlzylinderartigen Wandteiles ragt.For connection to the cap before and during the assembly process, it is expedient for the inner cylinder part to protrude into the interior of the hollow cylindrical wall part with a fixed jacket section.

Besonders zweckmässig ist es, wenn der innere Zylinderteil sich etwa bis zur Ebene der unteren, den Rand der Mundöffnung bedeckenden, Dichtungsflanschfläche erstreckt.It is particularly expedient if the inner cylinder part extends approximately to the level of the lower sealing flange surface covering the edge of the mouth opening.

Zur Erleichterung der Einführung des Ausgiessers in die Mundöffnung und zum Ausgleich etwaiger Durchmesserunterschiede über die axiale Länge der Mundöffnung ist es vorteilhaft, wenn jede Haltestrebe an ihrem unteren Randbereich eine radial nach innen gerichtete Stufe aufweist, die durch eine erste Schrägkante und eine sich daran anschliessende, etwa achsparallel verlaufende Kante gebildet ist.In order to facilitate the introduction of the spout into the mouth opening and to compensate for any differences in diameter over the axial length of the mouth opening, it is advantageous if each holding strut has a radially inwardly directed step on its lower edge region, which is characterized by a first oblique edge and a subsequent, approximately axially parallel edge is formed.

Zur Verwendung in Flaschen mit Verengung in der Mundöffnung ist es, in weiterer Ausführung der Erfindung zweckmässig, dass die axiale Länge der Haltestreben derart bemessen ist, dass die Haltestreben die engste Stelle der Verengung übergreifen.For use in bottles with a constriction in the mouth opening, it is expedient in a further embodiment of the invention that the axial length of the holding struts is dimensioned such that the holding struts overlap the narrowest point of the constriction.

Zur Verbindung des Einsatzes mit der Kappe oder einem Montagewerkzeug ist es vorteilhaft, wenn der innere Zylinderteil mit einer Öffnung versehen ist, deren Innendurchmesser dem Aussendurchmesser eines Dorns des Montagewerkzeuges oder der Kappe entspricht.To connect the insert to the cap or an assembly tool, it is advantageous if the inner cylinder part is provided with an opening whose inner diameter corresponds to the outside diameter of a mandrel of the assembly tool or the cap.

Gemäss einer Weiterbildung der Erfindung kann der Einsatz auch zur Abgabe dosierbarer Mengen des Behälterinhaltes verwendet werden, wobei es vorteilhaft ist, dass in dem inneren Zylinderteil ein Dosierelement eingesetzt ist.According to a development of the invention, the insert can also be used to dispense meterable quantities of the container contents, it being advantageous for a metering element to be inserted in the inner cylinder part.

Gemäss einem Ausführungsbeispiel der Erfindung ist das Dosierelement als Tropfeinsatz ausgebildet, mit einer Flüssigkeitsabgabeöffnung, einer in einem Hohlraum des Tropfeinsatzes mündenden Flüssigkeitseintrittsöffnung und mindestens einer Lufteintrittsöffnung in den Behälter.According to an embodiment of the invention, the metering element is designed as a drip insert, with a liquid discharge opening, ei ner in a cavity of the drip insert liquid inlet opening and at least one air inlet opening in the container.

Bei diesem Ausführungsbeispiel ist es ferner vorteilhaft, dass die Haltestreben sich an ihren oberen Enden in einen durch die Aussenwände des zylindrischen Teils und die Innenseite des hohlzylindrischen Wandteiles gebildeten Ringkanal erstrecken.In this exemplary embodiment, it is also advantageous that the holding struts extend at their upper ends into an annular channel formed by the outer walls of the cylindrical part and the inside of the hollow cylindrical wall part.

In noch weiterer Ausgestaltung dieses Ausführungsbeispiels ist es vorteilhaft, wenn die Innenfläche des inneren Zylinderteiles abgestufte Dichtungsflächen aufweist, die mit formschlüssig ausgebildeten, komplementären Dichtungsflächen an der Aussenwandung des Tropfeinsatzes zusammenwirken.In yet another embodiment of this embodiment, it is advantageous if the inner surface of the inner cylinder part has stepped sealing surfaces which interact with form-fitting, complementary sealing surfaces on the outer wall of the drip insert.

Für die Montage eines aus Tropfeinsatz und Ausgiesser gebildeten Einsatzes ist es vorteilhaft, wenn der freie Innendurchmesser der Flüssigkeitsabgabeöffnung des Dosierelementes dem Aussendurchmesser eines Dorns des Montagewerkzeuges oder der Kappe entspricht.For the assembly of an insert formed from a drip insert and pourer, it is advantageous if the free inside diameter of the liquid discharge opening of the metering element corresponds to the outside diameter of a mandrel of the assembly tool or the cap.

Eine einfache Herstellung des erfindungsgemässen Ausgiessers ergibt sich dann, wenn die Haltestreben mit dem inneren Zylinderteil einstükkig ausgebildet sind.The pouring spout according to the invention is simple to produce if the holding struts are formed in one piece with the inner cylinder part.

Besonders vorteilhaft ist es, wenn Ausgiesser, Haltestreben und innerer Zylinderteil zusammen einteilig hergestellt sind.It is particularly advantageous if the pourer, retaining struts and inner cylinder part are produced in one piece.

Gemäss einem abgewandelten Ausführungsbeispiel der Erfindung weist der Dichtungsflansch eine obere Ringnut auf, die mit dem Montagewerkzeug und/oder einem Ringwulst in der Innenfläche der Kappe elastisch zusammenwirkt.According to a modified exemplary embodiment of the invention, the sealing flange has an upper annular groove, which cooperates elastically with the assembly tool and / or an annular bead in the inner surface of the cap.

Weitere Vorteile und Einzelheiten der Erfindung werden anhand der Zeichnung näher erläutert, die schematische Ausführungsbeispiele darstellt. Dabei zeigt:

  • Fig. 1 einen Behälter mit Kappe und erfindungsgemässem Einsatz im Schnitt,
  • Fig. 2 einen erfindungsgemässen Einsatz in Schrägsicht von oben,
  • Fig. 3 ein abgewandeltes Ausführungsbeispiel in Schrägsicht von unten mit Tropfeinsatz, und
  • Fig. 4 einen Einsatz gemäss Fig. 2 in Untersicht.
Further advantages and details of the invention are explained in more detail with reference to the drawing, which shows schematic exemplary embodiments. It shows:
  • 1 is a container with a cap and use according to the invention in section,
  • 2 an inventive use in an oblique view from above,
  • Fig. 3 shows a modified embodiment in an oblique view from below with a drip insert, and
  • Fig. 4 an insert according to FIG. 2 in bottom view.

In Fig. 1 ist ein Ausführungsbeispiel dargestellt, bei dem in eine Mundöffnung 2 eines Halses 3 eines Behälters 1, beispielsweise einer Flasche, ein Ausgiesser 11 bereits eingesetzt ist. Der Behälter 1 kann an seinem Hals, wie dargestellt, ein Aussengewinde 4 aufweisen sowie einen Transferring 5. Mit dem Behälter 1 verbindbar ist eine Kappe 6 mit Innengewinde 7 und einem Mittelzapfen oder Dorn 10 und/oder einer Ringwulst 9 am inneren Boden 8.1 shows an exemplary embodiment in which a pourer 11 has already been inserted into a mouth opening 2 of a neck 3 of a container 1, for example a bottle. As shown, the container 1 can have an external thread 4 on its neck and a transfer ring 5. A cap 6 with an internal thread 7 and a central pin or mandrel 10 and / or an annular bead 9 on the inner base 8 can be connected to the container 1.

Der Ausgiesser 11 weist einen Dichtungsflansch 13 auf, der einen Rand 12 der Mundöffnung 2 des Behälters 1 zumindest teilweise überdeckt.The pourer 11 has a sealing flange 13 which at least partially covers an edge 12 of the mouth opening 2 of the container 1.

Der Ausgiesser 11 weist einen hohlzylinderartigen Wandteil 15 auf, der sich an die Innenwand 14 der Mundöffnung 2 anlegt. Erfindungsgemäss ist der Ausgiesser 11 mit Haltestreben 16, 17 und 18 versehen, die mit ihren äusseren Längskanten 20, 21 bzw. 22 sich an die Innenwand 14 der Mundöffnung 2 des Behälters 1 anpressen. Die Haltestreben 16, 17 und 18 sind mit einem inneren zylindrischen Teil 19 verbunden, vorzugsweise einstückig ausgebildet wobei sich ein freier Mantelabschnitt 23 des inneren zylindrischen Teils 19 in den Bereich des hohlzylinderartigen Wandteiles 15 des Ausgiessers 11 erstreckt, vorzugsweise bis zu der durch die untere Fläche des Dichtungsflansches 13 gebildeten Ebene.The pourer 11 has a hollow cylindrical wall part 15 which bears against the inner wall 14 of the mouth opening 2. According to the invention, the pourer 11 is provided with holding struts 16, 17 and 18 which, with their outer longitudinal edges 20, 21 and 22, press against the inner wall 14 of the mouth opening 2 of the container 1. The holding struts 16, 17 and 18 are connected to an inner cylindrical part 19, preferably formed in one piece, a free jacket section 23 of the inner cylindrical part 19 extending into the region of the hollow cylindrical wall part 15 of the spout 11, preferably up to that through the lower surface of the sealing flange 13 formed level.

Zum leichteren Einführen in die Mundöffnung 2 sind die Haltestreben 16, 17 und 18 an ihren unteren Enden mit Stufen 24 versehen, die durch eine Schrägkante 25 und eine sich daran anschliessende achsparallele Kante 26 gebildet sind.For easier insertion into the mouth opening 2, the struts 16, 17 and 18 are provided at their lower ends with steps 24, which are formed by a bevel edge 25 and an adjoining axially parallel edge 26.

Bei Flaschen 1 in deren Mundöffnung 2 eine Verengung 37 (strichliert dargestellt) vorgesehen ist, ist die axiale Länge der Haltestreben 16, 17 und 18 derart gewählt, dass die Haltestreben 16, 17 und 18 die engste Stelle 37 übergreifen, d. h. die axiale Länge der Haltestreben 16, 17 und 18 ist grösser als der Abstand der Verengung 37 vom oberen Rand 12 der Mundöffnung.In the case of bottles 1 in the mouth opening 2 of which a narrowing 37 (shown in dashed lines) is provided, the axial length of the holding struts 16, 17 and 18 is selected such that the holding struts 16, 17 and 18 overlap the narrowest point 37, i. H. the axial length of the holding struts 16, 17 and 18 is greater than the distance of the constriction 37 from the upper edge 12 of the mouth opening.

In Fig. 1 ist ferner vorgesehen, dass der Dichtungsflansch 13 des Ausgiessers 11 eine obere Ringnut 36 aufweist, die mit dem Ringwulst 9 in der Kappe 6 zusammenwirkt, derart, dass vor dem Aufschrauben der Kappe 6 auf die Flasche 1 der Ausgiesser 11 formschlüssig-elastisch in der Kappe 6 gehalten wird. Die Kappe 6 kann mit (nicht dargestellten) Griffrillen oder Griffrippen versehen sein, um das Auf- bzw. Abschrauben durch den Benutzer zu erleichtern. Ferner kann die Kappe 6 noch eine (nicht dargestellte) Originalitätssicherung aufweisen, die beispielsweise mit dem Transferring 5 zusammenwirkt.In Fig. 1 it is further provided that the sealing flange 13 of the spout 11 has an upper annular groove 36 which cooperates with the annular bead 9 in the cap 6, such that before the cap 6 is screwed onto the bottle 1, the spout 11 has a positive fit. is held elastically in the cap 6. The cap 6 can be provided with gripping grooves or gripping ribs (not shown) in order to facilitate screwing on and unscrewing by the user. Furthermore, the cap 6 can also have a tamper-evident device (not shown) which interacts, for example, with the transfer ring 5.

Aus der perspektivischen Schrägansicht der Fig. 2 ist die Ausbildung eines erfindungsgemässen Ausgiessers 11 deutlich zu erkennen. Bei diesem Ausführungsbeispiel sind drei Haltestreben 16, 17, 18 vorgesehen, die dreieckförmig bzw. sternförmig unter gleichen Winkelabständen an den inneren Zylinderteil 19 angeformt sind. Dabei ist die Ausbildung derart getroffen, dass die oberen Kanten der Haltestreben 16, 17, 18 an der unteren Kante des hohlzylinderartigen Wandteiles 15 anschliessen. Der innere Zylinderteil 19 ist als Hohlzylinder ausgebildet und weist eine durchgehende Öffnung 27 auf. Der Innendurchmesser der Öffnung 27 ist dabei derart gewählt, dass er dem Aussendurchmesser des Dorns bzw. des Zapfens 10 der Kappe 6 entspricht, so dass der Ausgiesser 11 in der Kappe 6 elastisch klemmend gehalten wird, bis der Verschliessvorgang bzw. der Aufschraubvorgang beendet ist. Dabei ist die Richtung der Haltestreben 16, 17, 18 und ihr Aussendurchmesser derart gewählt, dass die Anpresskraft an die Innenwand 14 der Mundöffnung 2 grösser ist, als die Haltekraft zwischen dem inneren zylindrischen Teil 19 und dem Mittelzapfen bzw. Dorn 10 der Kappe 6.The formation of a spout 11 according to the invention can be clearly seen from the perspective oblique view of FIG. 2. In this embodiment, three struts 16, 17, 18 are provided, which are formed triangularly or star-shaped at the same angular distances on the inner cylinder part 19. The design is such that the upper edges of the holding struts 16, 17, 18 connect to the lower edge of the hollow cylindrical wall part 15. The inner cylinder part 19 is designed as a hollow cylinder and has a continuous opening 27. The inside diameter of the opening 27 is chosen such that it corresponds to the outside diameter of the mandrel or the pin 10 of the cap 6, so that the spout 11 is held in the cap 6 in an elastically clamping manner until the closing process or the screwing-on process has ended. The direction of the holding struts 16, 17, 18 and their outer diameter is selected such that the contact force on the inner wall 14 of the mouth opening 2 is greater than the holding force between the inner cylindrical part 19 and the central pin or mandrel 10 of the cap 6.

Bei dem Ausführungsbeispiel gemäss der Fig. 3 ist die Ausbildung derart getroffen, dass in den inneren zylindrischen Teil 19 ein Tropfeinsatz 28 einsetzbar ist. Die Haltestreben 16, 17, 18 erstrekken sich dabei in einen Ringkanal 33, der zwischen der Aussenwandung des inneren zylindrischen Teils 19 und der Innenwandung des hohlzylinderartigen Wandteiles 15 gebildet ist. Der Tropfeinsatz 28 weist in an sich bekannter Weise eine Flüssigkeitsabgabeöffnung 29 auf, sowie eine in den Behälter 1 reichende Flüssigkeitseintrittsöffnung30. Im Wandbereich 31 des Tropfeinsatzes 28 ist mindestens eine Lufteintrittsöffnung 32 vorgesehen, die eine Verbindung zwischen Aussenluft und Behälterinneren schafft. Je nach Ausbildung der Flüssigkeitsabgabeöffnung 29 kann die Tropfengrösse bestimmt werden.In the exemplary embodiment according to FIG. 3, the design is such that a drip insert 28 can be inserted into the inner cylindrical part 19. The struts 16, 17, 18 extend into an annular channel 33, which is between the outer wall of the inner cylinder rule's part 19 and the inner wall of the hollow cylindrical wall part 15 is formed. The drip insert 28 has, in a manner known per se, a liquid discharge opening 29 and a liquid inlet opening 30 which extends into the container 1. At least one air inlet opening 32 is provided in the wall area 31 of the drip insert 28, which creates a connection between the outside air and the interior of the container. Depending on the design of the liquid discharge opening 29, the drop size can be determined.

Um eine gute Abdichtung zwischen dem Einsatz 11 und dem Tropfeinsatz 28 sicherzustellen, ist zweckmässigerweise eine abgestufte Dichtungsfläche 34 an dem inneren zylindrischen Teil 19 vorgesehen, die mit einer komplementären abgestuften Dichtungsfläche 35 am Tropfeinsatz 28 zusammenwirkt.In order to ensure a good seal between the insert 11 and the drip insert 28, a stepped sealing surface 34 is expediently provided on the inner cylindrical part 19, which interacts with a complementary stepped sealing surface 35 on the drip insert 28.

Aus Fig. 4 ist die Ausbildung und Anordnung der einzelnen Haltestreben 16, 17, 18 deutlich zu erkennen.The design and arrangement of the individual holding struts 16, 17, 18 can be clearly seen from FIG.

Bei den Ausführungsbeispielen nach den Fig. 2 und 3 sind zweckmässigerweise der Dichtungsflansch 13 mit hohlzylinderartigem Wandteil 15 einerseits sowie die Haltestreben 16, 17, 18 und der innere zylindrische Teil 19 einstückig aus elastischem Kunststoff hergestellt.In the exemplary embodiments according to FIGS. 2 and 3, the sealing flange 13 with the hollow cylindrical wall part 15 on the one hand and the holding struts 16, 17, 18 and the inner cylindrical part 19 are expediently made in one piece from elastic plastic.

Durch die erfindungsgemässe Ausbildung und Anordnung der Haltestreben 16, 17 und 18, die elastisch federnd sich Durchmesser-Toleranzen der Mundöffnung 2 anpassen können, wird eine wesentlich grössere axiale Anlage von Teilen des Ausgiessereinsatzes 11 in der Mundöffnung 2 sicher gestellt, als es allein mit dem hohlzylinderartigen Wandteil 15 möglich wäre. Da die unteren Enden der Haltestreben 16, 17 und 18 frei in die Mundöffnung 2 ragen, können sie sich elastisch radial ausdehnen bzw. bei Minustoleranzen entsprechend zusammengedrückt werden. Die erforderliche Haftkraft zwischen Einsatz 11 und Mundöffnung 2 wird in jedem Fall sicher gestellt. Die relativ schmalen Haltestreben 16,17 und 18 behindern weder den Ausgiessvorgang noch den Abtropfvorgang bei Verwendung eines Tropfeinsatzes 28.Due to the inventive design and arrangement of the holding struts 16, 17 and 18, which can adapt elastically resiliently to the diameter tolerances of the mouth opening 2, a substantially greater axial contact of parts of the pouring insert 11 in the mouth opening 2 is ensured than is possible solely with the hollow cylindrical wall part 15 would be possible. Since the lower ends of the holding struts 16, 17 and 18 protrude freely into the mouth opening 2, they can expand radially elastically or be compressed accordingly in the case of minus tolerances. The required adhesive force between insert 11 and mouth opening 2 is ensured in any case. The relatively narrow holding struts 16, 17 and 18 do not impede the pouring process or the dripping process when using a drip insert 28.

Der Ausgiesser 11 nach der Erfindung kann selbstverständlich auch in Behälter 1 eingesetzt werden, die kein Schraubgewinde aufweisen und beispielsweise mit einer elastischen Schnappkappe geschlossen werden. Im verschlossenen Zustand kann die Ringwulst 9 am unteren Boden 8 der Kappe 6 im Zusammenwirken mit der oberen Ringnut 36 im Dichtungsflansch 13 noch zusätzliche Dichtungsaufgaben erfüllen.The pourer 11 according to the invention can of course also be used in containers 1 which have no screw thread and are closed, for example, with an elastic snap cap. In the closed state, the annular bead 9 on the lower base 8 of the cap 6 can also perform additional sealing tasks in cooperation with the upper annular groove 36 in the sealing flange 13.

Claims (13)

1. Pouring spout (11) made of plastics material which can be inserted mechanically into the opening (2) of bottle-like containers (1) which can be sealed by a cap (6), the said spout comprising a sealing flange (13), which at least partially covers the edge (12) of the opening (2), and a hollow cylinder-like wall element (15) which presses against the inner wall (14) of the opening (2), characterised by at least two radially extending flexible retaining struts (16, 17 or 18) and by an inner cylindrical element (19), along which the radial retaining struts (16, 17, 18) extend for part of their axial inner length, whilst the respective outer edges (20, 21, 22) of the retaining struts (16, 17, 18) extend through the continuation of the hollow cylinder-like wall element (15) and are pressed flexibily against the inner wall (14) of the opening (2) by a retaining pressure which is greater than the retaining force on a holder which introduces the pouring spout into the opening (2) of the container (1).
2. Pouring spout according to Claim 1, characterised in that the holder, which is in the form of a cylinder-like plug (10), is arranged in the cap (6).
3. Pouring spout according to Claim 1 or 2, characterised in that three retaining struts (16, 17, 18) are in a star-shaped arrangement and are equiangularly spaced from one another.
4. Pouring spout according to any one of Claims 1 to 3, characterised in that the upper edges of the retaining struts (16, 17, 18) are adjacent to the lower edge of the hollow cylinder-like wall element (15).
5. Pouring spout according to any one of Claims 1 to 4, characterised in that the inner cylindrical element (19) projects with a free wall section (23) into the interior of the hollow cylinder-like wall element (15).
6. Pouring spout according to Claim 5, characterised in that the inner cylindrical element (19) extends approximately as far as the plane of the lower sealing flange surface (13) which covers the edge (12) of the opening (2).
7. Pouring spout according to any one of Claims 1 to 6, characterised in that each retaining strut (16,17,18) has on its lower edge a step (24) which is directed radially inwards and which is formed by a first sloping edge (25) and, following the latter, an approximately axially parallel edge (26).
8. Pouring spout according to any one of Claims 1 to 7, for use in bottles (1) having a constricted section (37) in the opening (2), characterised in that the axial length of the retaining struts (16, 17, 18) is dimensioned in such a manner that the retaining struts (16, 17, 18) extend over the narrowest point of the constricted section (37).
9. Pouring spout according to Claim 1, characterised in that a metering element is inserted into the inner cylindrical element (19), that the metering element is in the form of a drop insert (28) having a liquid outlet opening (29), a liquid inlet (30) opening into a hollow space (31) in the drop insert (28) and at least one air inlet (32) into the container (1).
10. Pouring spout according to Claim 9, characterised in that the upper ends of the retaining struts (16, 17, 18) extend into an annular channel (33) which is formed by the outer walls of the cylindrical element (19) and the inner side of the hollow-cylinder wall element (15).
11. Pouring spout according to Claim 10, characterised in that the inner face of the inner cylindrical element (19) has stepped sealing faces (34) which cooperate with positively formed complementary sealing faces (35) on the outer wall of the drop insert (28).
12. Pouring spout according to any one of Claims 1 to 11, characterised in that the retaining struts (16, 17, 18) are designed in one piece with the inner cylindrical element (19).
13. Pouring spout according to any one of Claims 1 to 12, characterised in that the pouring spout (11), retaining struts (16, 17, 18) and inner cylindrical element are manufactured in one piece.
EP81107523A 1980-09-25 1981-09-22 Bottle pourer Expired EP0048931B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81107523T ATE14862T1 (en) 1980-09-25 1981-09-22 SPOUT FOR BOTTLE-LIKE CONTAINERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803036139 DE3036139A1 (en) 1980-09-25 1980-09-25 SPOUT FOR BOTTLE-LIKE CONTAINERS
DE3036139 1980-09-25

Publications (2)

Publication Number Publication Date
EP0048931A1 EP0048931A1 (en) 1982-04-07
EP0048931B1 true EP0048931B1 (en) 1985-08-14

Family

ID=6112818

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107523A Expired EP0048931B1 (en) 1980-09-25 1981-09-22 Bottle pourer

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Country Link
US (1) US4427138A (en)
EP (1) EP0048931B1 (en)
AT (1) ATE14862T1 (en)
DE (1) DE3036139A1 (en)
DK (1) DK390981A (en)

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Also Published As

Publication number Publication date
DE3036139C2 (en) 1987-12-17
US4427138A (en) 1984-01-24
ATE14862T1 (en) 1985-08-15
EP0048931A1 (en) 1982-04-07
DK390981A (en) 1982-03-26
DE3036139A1 (en) 1982-05-06

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