EP0537324B1 - Hinged snap-on cap with warranty band - Google Patents

Hinged snap-on cap with warranty band Download PDF

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Publication number
EP0537324B1
EP0537324B1 EP92910736A EP92910736A EP0537324B1 EP 0537324 B1 EP0537324 B1 EP 0537324B1 EP 92910736 A EP92910736 A EP 92910736A EP 92910736 A EP92910736 A EP 92910736A EP 0537324 B1 EP0537324 B1 EP 0537324B1
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EP
European Patent Office
Prior art keywords
closure
tamper
proof
proof strip
bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92910736A
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German (de)
French (fr)
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EP0537324A1 (en
Inventor
Werner Fritz Dubach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Medisize Schweiz AG
Original Assignee
Createchnic AG
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Publication date
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Publication of EP0537324A1 publication Critical patent/EP0537324A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B65D47/0809—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 and elastically biased towards both the open and the closed positions
    • B65D47/0814—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 and elastically biased towards both the open and the closed positions by at least three hinge sections, at least one having a length different from the others
    • 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
    • B65D2251/00—Details relating to container closures
    • B65D2251/10—Details of hinged closures
    • B65D2251/1016—Means for locking the closure in closed position
    • B65D2251/105—The closure having a part fitting over the rim of the container or spout and retained by snapping over integral beads or projections
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/25—Non-metallic tear-off strips

Definitions

  • the present invention relates to a one-piece snap hinge closure made of plastic, consisting of a lower part and an upper part or cap connected thereto via a film hinge, which has a guarantee band integrally molded onto a closure part, and at least one recess in which a projecting latch engages with the other closure part , so that the two closure parts are positively locked before removal of the guarantee tape, that is to say in the guarantee position, the jacket walls of the cap and of the lower part being flush with one another when the closure is closed.
  • Plastic closures with a guarantee band have been known for a long time. This applies in particular to plastic screw caps for bottles. These are, in particular, closures consisting of a screw cap with a guarantee tape integrally molded thereon, which at least approximately completely runs around the closure.
  • Guarantee tapes on snap hinge locks are much rarer. This has to do in particular with the considerably more complicated geometry. Snap hinge locks are mainly in the fully open Layer sprayed and only closed afterwards. The protruding parts on one closure part must be positively engaged with recesses on the other closure part or on the guarantee band. This requires a high degree of flexibility of the guarantee band, so that during the closing process the protruding parts, which serve as bolts, the predetermined breaking points over which the guarantee band is connected to the closure are not destroyed during the closing process.
  • a snap hinge closure of the type mentioned at the beginning with a guarantee band is known, for example, from US-A-4487324.
  • the guarantee band In order to reduce the risk of destroying the connection of the guarantee band with the closure as much as possible, the guarantee band is kept as small as possible and the distance between the individual predetermined breaking points is relatively wide. Unfortunately, it has been shown that snap hinge locks of this type can be opened with a little skill without destroying the guarantee band. This is not least due to the fact that the locking mechanism is easily visible.
  • US-A-4696408 shows a snap hinge closure made of plastic with a guarantee band which extends around half the circumference of the closure.
  • the guarantee tape is molded onto the lower part of the closure via corresponding webs and extends far upwards that the cap or the upper part of the closure cannot be grasped in the guaranteed position of the closure.
  • a recess is also provided in the guarantee band, in which a latch on the upper part of the closure engages in the recess in the guarantee position.
  • the plastic closure is shown in the guarantee position as it is placed on the container to be closed.
  • the same closure is already shown placed on a tube.
  • the closure consists of a lower part 1, which is used for attachment to a container or tube T, and an upper part 2, which is designed as a lid.
  • Lower part 1 and upper part 2 are integrally connected to one another via a film hinge 4.
  • a guarantee band 3 is formed via webs 6.
  • the webs 6 form predetermined breaking points which are destroyed when the guarantee tape 3 is removed.
  • the snap action of the plastic closure is effected in the case shown by two spring elements 5, which are approximately adjacent to the film hinge 4, which represents the main joint axis.
  • Each Spring element 5 has the shape of a U-shaped, expandable spring, one end of which is firmly connected to the upper part via a hinge point and to the lower part via a second hinge point.
  • a pusher 7 is formed on the upper part 2. This has the shape of a U-shaped bracket that protrudes beyond the circumference of the guarantee band 3.
  • the pusher 7 is arranged on the upper part 2 directly above the guarantee band 3.
  • the webs 6 which serve as predetermined breaking points are laterally distributed over this pusher 7 over the remaining circumference of the guarantee band 3.
  • the guarantee band 3 extends approximately approximately half the circumference of the closure. A greater length of the guarantee band 3 than that shown in FIGS. 1 to 3 would hardly be closable into the guarantee position shown without destroying the outermost webs 6.
  • the lower part 1 consists of an outer, annular jacket wall 11, which is closed by a cover surface 12.
  • An outlet grommet 13 passes through the top surface 12.
  • the outlet nozzle communicates with the neck of the container on which the closure is placed.
  • the ring wall 14, which runs concentrically around the outlet nozzle 13, serves to hold the closure on the container neck mentioned. This takes place by means of a positive connection, which is realized with a holding groove 15 in the inner surface of the annular wall 14.
  • the real one Sealing between the lower part 1 and the upper part 2 takes place by means of an annular bead 16 on the upper edge of the outlet nozzle 13.
  • the upper part or the cap 2 also has an annular jacket wall 21 which, when the closure is closed, lies flush with the jacket wall 11 in a vertical manner.
  • the jacket wall 21 of the cap 2 is closed by a cover surface 20.
  • a sealing ring wall 26 is formed on the inner surface of the top surface 20 and is exactly aligned with the outlet nozzle 13 in the lower part 1.
  • the guarantee position of the closure is only ensured in that an element on the lower part 1 of the closure engages with a recess 27 in the guarantee band 3. This can be done in different ways. In the embodiment according to FIGS.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Hinges (AREA)
  • Dental Preparations (AREA)
  • Adornments (AREA)
  • Packages (AREA)
  • Package Frames And Binding Bands (AREA)

Abstract

PCT No. PCT/CH92/00113 Sec. 371 Date Feb. 18, 1993 Sec. 102(e) Date Feb. 18, 1993 PCT Filed Jun. 11, 1992 PCT Pub. No. WO93/00271 PCT Pub. Date Jul. 1, 1993.A one-piece snap hinge closure of plastic having a lower part and an upper part connected with each other via a film hinge. The intactness of the closure is assured by a security band. The security band is injection-molded to the upper part via bars which are used as predetermined breaking points. A bar on the lower part is engaged with the security band. The bar on the lower part can be placed in such a way that in the security position of the closure it is attached behind a tab on the upper part.

Description

Die vorliegende Erfindung betrifft einen einteiligen Schnappscharnierverschluss aus Kunststoff bestehend aus einem Unterteil und ein damit über ein Filmscharnier verbundenes Oberteil, beziehungsweise Kappe, welche ein einstückig an einem Verschlussteil angespritztes Garantieband, sowie mindestens eine Ausnehmung aufweist, in dem jeweils ein vorstehender Riegel am anderen Verschlussteil eingreift, so dass die beiden Verschlussteile vor der Entfernung des Garantiebandes, das heisst in der Garantielage formschlüssig verriegelt sind, wobei die Mantelwände der Kappe und des Unterteiles im geschlossenen Zustand des Verschlusses fluchtend übereinander liegen.
Kunststoffverschlüsse mit Garantieband sind bereits seit längerer Zeit bekannt. Dies trifft insbesondere auf Kunststoffdrehverschlüsse für Flaschen zu. Hierbei handelt sich insbesondere, um Verschlüsse bestehend aus einer Schraubkappe mit daran einstückig angespritzten Garantieband, welches mindestens annähernd vollständig um den Verschluss herumläuft. Garantiebänder an Schnappscharnierverschlüssen sind sehr viel seltener. Dies hat insbesondere mit der erheblich komplizierteren Geometrie zu tun. Schnappscharnierverschlüsse werden nämlich vorwiegend in der vollständig geöffneten Lage gespritzt und erst nachher geschlossen. Dabei müssen vorstehende Teile an einem Verschlussteil formschlüssig mit Ausnehmungen am anderen Verschlussteil oder am Garantieband im Eingriff gebracht werden. Dies verlangt ein hohes Mass an Flexibilität des Garantiebandes, so dass beim Schliessvorgang die vorstehenden Teile, die als Riegel dienen, die Sollbruchstellen, über denen das Garantieband mit dem Verschluss verbunden ist, nicht bereits beim Schliessvorgang zerstört werden.
Ein Schnappscharnierverschluss der eingangs genannten Art mit Garantieband, ist beispielsweise aus der US-A-4487324 bekannt. Um die Gefahr einer Zerstörung der Verbindung des Garantiebandes mit dem Verschluss möglichst zu reduzieren, ist das Garantieband möglichst klein gehalten und der Abstand zwischen den einzelnen Sollbruchstellen relativ weit. Leider hat es sich gezeigt, dass Schnappscharnierverschlüsse dieser Art sich mit etwas Geschick auch ohne Zerstörung des Garantiebandes öffnen lassen. Dies hängt nicht zuletzt damit zusammen, dass der Verriegelungsmechanismus ohne weiteres ersichtlich ist.The present invention relates to a one-piece snap hinge closure made of plastic, consisting of a lower part and an upper part or cap connected thereto via a film hinge, which has a guarantee band integrally molded onto a closure part, and at least one recess in which a projecting latch engages with the other closure part , so that the two closure parts are positively locked before removal of the guarantee tape, that is to say in the guarantee position, the jacket walls of the cap and of the lower part being flush with one another when the closure is closed.
Plastic closures with a guarantee band have been known for a long time. This applies in particular to plastic screw caps for bottles. These are, in particular, closures consisting of a screw cap with a guarantee tape integrally molded thereon, which at least approximately completely runs around the closure. Guarantee tapes on snap hinge locks are much rarer. This has to do in particular with the considerably more complicated geometry. Snap hinge locks are mainly in the fully open Layer sprayed and only closed afterwards. The protruding parts on one closure part must be positively engaged with recesses on the other closure part or on the guarantee band. This requires a high degree of flexibility of the guarantee band, so that during the closing process the protruding parts, which serve as bolts, the predetermined breaking points over which the guarantee band is connected to the closure are not destroyed during the closing process.
A snap hinge closure of the type mentioned at the beginning with a guarantee band is known, for example, from US-A-4487324. In order to reduce the risk of destroying the connection of the guarantee band with the closure as much as possible, the guarantee band is kept as small as possible and the distance between the individual predetermined breaking points is relatively wide. Unfortunately, it has been shown that snap hinge locks of this type can be opened with a little skill without destroying the guarantee band. This is not least due to the fact that the locking mechanism is easily visible.

Demgegenüber zeigt die US-A-4696408 einen Schnappscharnierverschluss aus Kunststoff mit einem Garantieband, welches sich um den halben Umfang des Verschlusses erstreckt. Das Garantieband ist dabei am Unterteil des Verschlusses über entsprechende Stege angespritzt und erstreckt sich weit nach oben, dass die Kappe, beziehungsweise der Verschlussoberteil in der Garantielage des Verschlusses nicht gefasst werden kann. In einer besonderen Ausführung ist zudem noch im Garantieband eine Ausnehmung vorgesehen, in dem ein Riegel am Oberteil des Verschlusses in der Garantielage in die Ausnehmung desselben eingreift. Dies stellt jedoch nur eine zusätzliche Verriegelung dar, die eigentliche Sicherung jedoch besteht darin, dass das Garantieband so um die Kappe des Verschlusses anzuordnen, dass diese im Bereich gegenüber dem Scharnier nicht gefasst werden kann und sich somit auch nicht öffnen lässt.In contrast, US-A-4696408 shows a snap hinge closure made of plastic with a guarantee band which extends around half the circumference of the closure. The guarantee tape is molded onto the lower part of the closure via corresponding webs and extends far upwards that the cap or the upper part of the closure cannot be grasped in the guaranteed position of the closure. In a special embodiment, a recess is also provided in the guarantee band, in which a latch on the upper part of the closure engages in the recess in the guarantee position. However, this only represents an additional locking, the actual securing however consists in arranging the guarantee band around the cap of the closure in such a way that it cannot be gripped in the area opposite the hinge and therefore cannot be opened.

Diese Art von Kunststoffschnappscharnierverschlüssen hat sich besonders auf Flaschen bewährt. Für kleinere Verschlüsse jedoch, beispielsweise für auf Tuben, ist diese Art von Schnappscharnierverschlüssen mit Garantieband nicht geeignet, weil die Kappe zu klein ist, um darin auch noch eine benützerfreundliche Griffnische zum Oeffnen unter zu bringen. Ist die Griffnische zu klein, so muss man an der Kappe einen Drücker zum Oeffnen anbringen. Dieser steht dann jedoch derart stark vor, dass er nicht mehr vom Garantieband abgedeckt werden kann, beziehungsweise auch nicht beim Schliessvorgang hinter dem Band entlang geführt werden kann, ohne die Verbindung des Garantiebandes mit dem Verschlussunterteil zu zerstören.This type of plastic snap hinge closure has proven particularly useful on bottles. However, for smaller closures, for example on tubes, this type of snap hinge closure with a guarantee band is not suitable because the cap is too small to accommodate a user-friendly niche for opening. If the handle niche is too small, you have to attach a push button to the cap to open it. However, this protrudes so strongly that it can no longer be covered by the guarantee band or cannot be guided behind the band during the closing process without destroying the connection of the guarantee band to the lower part of the closure.

Es ist daher die Aufgabe der vorliegenden Erfindung ein Schnappscharnierverschluss der eingangs genannten Art zu schaffen, der mit geringerer Gefahr der Zerstörung erstmals geschlossen werden kann. Ferner soll der Verschluss für kleine Verschlüsse, insbesondere in der Anwendung auf Tuben, gestaltet werden können und es zudem zulassen, den Verschlussoberteil mit einem grossen Drücker zu versehen.
Diese Aufgabe löst ein Schnappscharnierverschluss mit dem kennzeichnenden Merkmal des Patentanspruches 1.
Weitere erfindungsgemässe, vorteilhafte Ausgestaltungsformen gehen aus den abhängigen Patentansprüchen hervor, und deren Bedeutung ist in der nachfolgenden Beschreibung anhand der anliegenden Zeichnungen erläutert.
Es zeigt:

Figur 1
eine Seitenansicht eines Schnappscharnierverschlusses in der Garantielage;
Figur 2
denselben Verschluss in montiertem Zustand in der Garantielage auf einer Tube und
Figur 3
eine Sicht auf den Verschluss nach den Figuren 1 und 2;
Figur 4
einen Vertikalschnitt durch den Verschluss nach Figur 3 entlang der Linie IV-IV;
Figur 5
einen zweiten Vertikalschnitt durch denselben Verschluss nach Figur 3 entlang der Linie V-V;
Figur 6
einen Vertikalschnitt durch den Verschluss in der Fertigungslage und
Figur 7
in einer Zwischenlage vor der erstmaligen Schliessung.
Figur 8
zeigt eine Frontansicht auf den Kunststoffverschluss in der Garantielage, wobei zwei verschiedene Verriegelungsmechanismen realisiert sind, wovon in
Figur 9
die eine Variante im Teilschnitt und in
Figur 10
die andere Variante im Teilschnitt dargestellt ist.
It is therefore the object of the present invention to provide a snap hinge closure of the type mentioned at the outset which can be closed for the first time with less risk of destruction. Furthermore, the closure should be able to be designed for small closures, particularly when used on tubes, and should also allow the upper closure part to be provided with a large pusher.
This object is achieved by a snap hinge closure with the characterizing feature of patent claim 1.
Further advantageous embodiments according to the invention emerge from the dependent patent claims, and their meaning is explained in the following description with reference to the attached drawings.
It shows:
Figure 1
a side view of a snap hinge closure in the warranty position;
Figure 2
the same closure when assembled in the guarantee position on a tube and
Figure 3
a view of the closure according to Figures 1 and 2;
Figure 4
a vertical section through the closure of Figure 3 along the line IV-IV;
Figure 5
a second vertical section through the same closure according to Figure 3 along the line VV;
Figure 6
a vertical section through the closure in the Manufacturing situation and
Figure 7
in an intermediate position before the first closure.
Figure 8
shows a front view of the plastic closure in the guaranteed position, two different locking mechanisms being implemented, of which in
Figure 9
a variant in partial section and in
Figure 10
the other variant is shown in partial section.

In den Figuren 1 und 3 ist der Kunststoffverschluss in der Garantielage dargestellt, wie er auf den zu verschliessenden Behälter aufgesetzt wird. In Figur 2 ist derselbe Verschluss bereits auf einer Tube aufgesetzt dargestellt. Der Verschluss besteht, wie üblich aus einem Unterteil 1, der zur Befestigung auf einem Behälter beziehungsweise Tube T dient und einem Oberteil 2, der als Deckel ausgebildet ist. Unterteil 1 und Oberteil 2 sind über ein Filmscharnier 4 einstückig miteinander verbunden. An der Unterkante 2' des Oberteiles 2 ist ein Garantieband 3 über Stege 6 angeformt. Die Stege 6 bilden Sollbruchstellen, die bei der Entfernung des Garantiebandes 3 zerstört werden. Die Schnappwirkung des Kunststoffverschlusses wird im dargestellten Fall durch zwei Federelemente 5, die etwa angrenzend an das Filmscharnier 4, welches die Hauptgelenkachse darstellt, bewirkt. Jedes Federelement 5 hat die Form einer U-förmigen, aufspreizbaren Feder, deren eines Ende über eine Gelenkstelle mit dem Oberteil und über eine zweite Gelenkstelle mit dem Unterteil fest verbunden ist. Zur Bedienung des Verschlusses ist am Oberteil 2 ein Drücker 7 angeformt. Dieser hat die Form eines U-förmigen Bügels, der über den Umfang des Garantiebandes 3 hinaus vorsteht. Der Drücker 7 ist am Oberteil 2 direkt oberhalb dem Garantieband 3 angeordnet. Die als Sollbruchstellen dienenden Stege 6 sind seitlich dieses Drückers 7 über den verbleibenden Umfang des Garantiebandes 3 verteilt. Das Garantieband 3 erstreckt sich etwa annähernd um den halben Umfang des Verschlusses. Eine grössere Länge des Garantiebandes 3, als jene in den Figuren 1 bis 3 dargestellt, wäre ohne Zerstörung der zu äusserst liegenden Stege 6 kaum in die dargestellte Garantielage verschliessbar.In Figures 1 and 3, the plastic closure is shown in the guarantee position as it is placed on the container to be closed. In Figure 2, the same closure is already shown placed on a tube. As usual, the closure consists of a lower part 1, which is used for attachment to a container or tube T, and an upper part 2, which is designed as a lid. Lower part 1 and upper part 2 are integrally connected to one another via a film hinge 4. On the lower edge 2 'of the upper part 2, a guarantee band 3 is formed via webs 6. The webs 6 form predetermined breaking points which are destroyed when the guarantee tape 3 is removed. The snap action of the plastic closure is effected in the case shown by two spring elements 5, which are approximately adjacent to the film hinge 4, which represents the main joint axis. Each Spring element 5 has the shape of a U-shaped, expandable spring, one end of which is firmly connected to the upper part via a hinge point and to the lower part via a second hinge point. To operate the closure, a pusher 7 is formed on the upper part 2. This has the shape of a U-shaped bracket that protrudes beyond the circumference of the guarantee band 3. The pusher 7 is arranged on the upper part 2 directly above the guarantee band 3. The webs 6 which serve as predetermined breaking points are laterally distributed over this pusher 7 over the remaining circumference of the guarantee band 3. The guarantee band 3 extends approximately approximately half the circumference of the closure. A greater length of the guarantee band 3 than that shown in FIGS. 1 to 3 would hardly be closable into the guarantee position shown without destroying the outermost webs 6.

Der Unterteil 1 besteht aus einer äusseren, ringförmigen Mantelwand 11, die von einer Deckfläche 12 abgeschlossen wird. Die Deckfläche 12 wird von einer Austrittstülle 13 durchsetzt. Die Austrittstülle kommuniziert mit dem Behälterhals des Behälters, auf den der Verschluss aufgesetzt wird. Die Ringwand 14, welche konzentrisch um die Austrittstülle 13 verläuft, dient der Halterung des Verschlusses auf den erwähnten Behälterhals. Dies erfolgt mittels einem Formschluss, der mit einer Haltenut 15 in der Innenfläche der ringförmigen Wand 14 realisiert ist. Die eigentliche Dichtung zwischen Unterteil 1 und Oberteil 2 erfolgt durch eine Ringwulst 16 an der oberen Kante der Austrittstülle 13. Der Oberteil, beziehungsweise die Kappe 2 hat auch eine ringförmige Mantelwand 21, welche im geschlossenen Zustand des Verschlusses mit der Mantelwand 11 fluchtend senkrecht übereinander liegt. Die Mantelwand 21 der Kappe 2 wird durch eine Deckfläche 20 abgeschlossen. Auf der Innenfläche der Deckfläche 20 ist eine dichtende Ringwand 26 angeformt, die exakt auf die Austrittstülle 13 im Unterteil 1 ausgerichtet ist. Auf der Innenfläche der dichtenden Ringwand 26 ist wiederum eine Ringwulst 22 angebracht, die mit der Ringwulst 16 an der Tülle 13 zusammenwirkend eine Dichtung ergibt.
Die Garantielage des Verschlusses wird erst dadurch sichergestellt, dass ein Element am Unterteil 1 des Verschlusses mit einer Ausnehmung 27 im Garantieband 3 im Eingriff steht. Dies lässt sich auf verschiedene Arten realisieren. In der Ausführungsform gemäss den Figuren 1-7 geschieht dies mit einem Riegel 17, der als fluchtende Verlängerung der Deckfläche 12 geformt ist und mit einer Ausnehmung 27 in Eingriff bringbar ist, welche im Bereich des Freiraumes 23 des Drückers 7 angebracht ist. Der Drücker 7 selber hat die Form eines U-förmigen Bügels. Der Vorteil einer solchen Ausgestaltung besteht vorallem darin, dass die Verriegelung in der Garantielage des Verschlusses überhaupt nicht sichtbar ist. Im Gegensatz dazu ist die Variante der Verriegelung, wie sie in den Figuren 8 und 9 dargestellt ist, wohl sichtbar. Der Riegel 17 ist hier nicht mehr fluchtend mit der Deckfläche 12 des Unterteils verbunden, sondern leicht gegenüber dessen Oberfläche nach unten versetzt angespritzt. Die Ausnehmung 27 ist somit nicht mehr bündig mit der Oberkante des Garantiebandes 3.
Die Alternative gemäss den Figuren 8 und 10 zeigt wieder eine verdeckte Verriegelung. Dies geschieht mittels einer Nische 24 im Garantieband, welche die Funktion der Ausnehmung 27 ausübt und eine untere Sperrkante 25 aufweist. Der Riegel 17 an der Mantelwand 11 hat die konträre Form dieser Ausnehmung 24.
Bei all diesen Varianten ist der Vorteil darin zu sehen, dass unabhängig der Kleinheit des Verschlusses, die Funktion einwandfrei garantiert werden kann. Auch wenn der Verschluss sehr klein ist und ein dementsprechend relativ grosser Drücker 7 angebracht werden muss, ist dieser nie im Wege. Die Anordnung des Garantiebandes 3 am Oberteil; beziehungsweise Kappe 2 erlaubt dem Konstrukteur somit sehr viel mehr Freiheit in der aesthetischen Gestaltung des Verschlusses und erhöht den Bedienungskomfort.The lower part 1 consists of an outer, annular jacket wall 11, which is closed by a cover surface 12. An outlet grommet 13 passes through the top surface 12. The outlet nozzle communicates with the neck of the container on which the closure is placed. The ring wall 14, which runs concentrically around the outlet nozzle 13, serves to hold the closure on the container neck mentioned. This takes place by means of a positive connection, which is realized with a holding groove 15 in the inner surface of the annular wall 14. The real one Sealing between the lower part 1 and the upper part 2 takes place by means of an annular bead 16 on the upper edge of the outlet nozzle 13. The upper part or the cap 2 also has an annular jacket wall 21 which, when the closure is closed, lies flush with the jacket wall 11 in a vertical manner. The jacket wall 21 of the cap 2 is closed by a cover surface 20. A sealing ring wall 26 is formed on the inner surface of the top surface 20 and is exactly aligned with the outlet nozzle 13 in the lower part 1. On the inner surface of the sealing ring wall 26 an annular bead 22 is in turn attached, which cooperates with the annular bead 16 on the spout 13 results in a seal.
The guarantee position of the closure is only ensured in that an element on the lower part 1 of the closure engages with a recess 27 in the guarantee band 3. This can be done in different ways. In the embodiment according to FIGS. 1-7, this is done with a bolt 17 which is shaped as an aligned extension of the top surface 12 and can be brought into engagement with a recess 27 which is provided in the region of the free space 23 of the lever 7. The pusher 7 itself has the shape of a U-shaped bracket. The main advantage of such a configuration is that the locking mechanism is not visible at all in the guaranteed position of the closure. In contrast, the variant of the lock, as shown in Figures 8 and 9, is clearly visible. The bolt 17 is no longer in alignment with the top surface 12 of the lower part, but is sprayed slightly offset relative to the surface thereof. The recess 27 is therefore no longer flush with the upper edge of the guarantee band 3.
The alternative according to FIGS. 8 and 10 again shows a concealed lock. This is done by means of a niche 24 in the guarantee band, which performs the function of the recess 27 and has a lower locking edge 25. The bolt 17 on the jacket wall 11 has the opposite shape of this recess 24.
The advantage of all these variants can be seen in the fact that regardless of the small size of the closure, the function can be guaranteed perfectly. Even if the closure is very small and a correspondingly relatively large pusher 7 must be attached, this is never in the way. The arrangement of the guarantee band 3 on the upper part; or cap 2 thus allows the designer much more freedom in the aesthetic design of the closure and increases the ease of use.

Claims (5)

  1. One-piece plastic hinged snap-on closure comprising a bottom part (1) and a top part (2) or cap connected thereto by means of a film hinge (4) and which has a tamper-proof strip (3) extruded in one piece onto a closure part, as well as at least one recess, in which in each case engages a projecting bolt (17) on the other closure part, so that prior to the removal of the tamper-proof strip (3), i.e. in the tamper-proof position, the two closure parts are interlocked, the peripheral walls of the caps and the bottom part being in aligned superimposed form when the closure is closed, characterized in that the tamper-proof strip (3) extends around roughly half the circumference of the closure top part (2) and by means of predetermined breaking points is extruded on the lower edge (2') of the closure top part and that the bolt (17) in engagement with the tamper-proof strip (3) in the tamper-proof position is shaped onto the peripheral wall (7) of the bottom part (1) in the vicinity of the part of said wall around which the tamper-proof strip (3) engages.
  2. Hinged snap-on closure according to claim 1, characterized in that closure top part (2) has a pusher (7), which projects beyond the outer surface of the tamper-proof strip (3).
  3. Hinged snap-on cap according to claim 2, characterized in that the pusher (7) is in the form of a U-shaped clip and in whose free space (23) between the outer wall (21) of the closure top part (2) and the inner surface of the pusher (7) in the tamper-proof position is located the bolt (17).
  4. Hinged snap-on closure according to claim 1, characterized in that the at least one recess (27) is a cavity (24) with a locking edge (25) in the inner surface of the tamper-proof strip and behind which the bolt (17) engages in the tamper-proof position.
  5. Hinged snap-on closure according to claim 1, characterized in that the at least one recess (27) is an opening in the tamper-proof strip (3), which is at least approximately of the same size as the bolt (17) engaging in the opening in the tamper-proof position.
EP92910736A 1991-06-21 1992-06-11 Hinged snap-on cap with warranty band Expired - Lifetime EP0537324B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH1842/91 1991-06-21
CH1842/91A CH683417A5 (en) 1991-06-21 1991-06-21 Snap hinge closure with tamper-evident band.
PCT/CH1992/000113 WO1993000271A1 (en) 1991-06-21 1992-06-11 Hinged snap-on cap with warranty band

Publications (2)

Publication Number Publication Date
EP0537324A1 EP0537324A1 (en) 1993-04-21
EP0537324B1 true EP0537324B1 (en) 1994-04-06

Family

ID=4219886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92910736A Expired - Lifetime EP0537324B1 (en) 1991-06-21 1992-06-11 Hinged snap-on cap with warranty band

Country Status (9)

Country Link
US (1) US5392938A (en)
EP (1) EP0537324B1 (en)
AT (1) ATE103876T1 (en)
AU (1) AU1887792A (en)
CH (1) CH683417A5 (en)
DE (1) DE59200106D1 (en)
DK (1) DK0537324T3 (en)
ES (1) ES2050557T3 (en)
WO (1) WO1993000271A1 (en)

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DE202008004047U1 (en) 2008-03-20 2008-07-17 Werner Heinz Feinmechanik Kunststoffe Gmbh & Co. Kg Plastic closure

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US6691901B2 (en) * 2001-12-14 2004-02-17 Gateway Plastics, Inc. Closure for a container
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000041943A1 (en) 1999-01-14 2000-07-20 Soplar S.A. Hinged closure with tamperproof element
DE202008004047U1 (en) 2008-03-20 2008-07-17 Werner Heinz Feinmechanik Kunststoffe Gmbh & Co. Kg Plastic closure

Also Published As

Publication number Publication date
EP0537324A1 (en) 1993-04-21
DE59200106D1 (en) 1994-05-11
DK0537324T3 (en) 1994-05-09
ATE103876T1 (en) 1994-04-15
CH683417A5 (en) 1994-03-15
AU1887792A (en) 1993-01-25
WO1993000271A1 (en) 1993-01-07
ES2050557T3 (en) 1994-05-16
US5392938A (en) 1995-02-28

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