EP1513732B1 - Self-opening closure for composite packagings or for container or bottle nozzles for sealing with film material - Google Patents

Abstract

The self-opener closure consists of a pour-out spout (2) which may be sealingly assembled onto a composite packaging or onto a container spout or bottle spout to be closed with film material, of an associated rotary cap (1) as well as a self-opener sleeve (3) arranged within the pour-out spout (2) which may be set into rotation by the rotary cap (1). Force transmission means and guide means are formed on these three elements. These cooperate with one another such that on rotating the rotary cap (1) in the opening direction for the first time the self-opener sleeve (3) firstly in the pour-out spout (2) may be pushed vertically downwards and subsequently may be rotated by approximately 360° in the horizontal. Because the self-opener sleeve (3) at its lower edge and projecting from this comprises a single, combined piercing and cutting member (9) the film or the composite packaging is first reliably pierced and afterwards a disk is cut cleanly out of it and pivoted downwards.

Description

This invention relates to a self-opener closure for composite packages as well as with foil material to be sealed container neck or bottle neck of all kinds. It is especially thought of liquid packages in the form of such composite packages of foil-coated paper in which about milk, fruit juices, all kinds of non-alcoholic drinks or liquids in general be packed in the non-food area. The closure can also be used for composite packages in which bulk goods such as sugar, semolina or all kinds of chemicals and the like are stored or packaged. This film-coated paper is a laminate material such as a paper or board web coated with plastic such as polyethylene and / or aluminum. Common volumes of such packages range from 20cl up to 2 liters and more. Alternatively, the self-opener closure can also be mounted on containers which are closed by a foil material, for example on all kinds of bottles made of glass or plastic or similar containers. Such plastic closures are known in various designs (see, for example, document US-A-5 482 176). They form, when they are intended for a composite package, essentially a spout with radially projecting shoulder from its lower edge, which forms a final flange at this spout. The nozzle is equipped with an external thread on which a threaded cap can be screwed as a closure. Such a self-opener closure is flanged onto the composite package by sealingly sealing it to the composite package with the underside of its cantilevered edge, that is, the underside of its flange. The free passage at the lower end of the nozzle is then closed by the paper and the sealing film of the composite package. In the case of a bottle closure, the spout is in turn plugged or screwed onto a bottle mouth and closed on its inside with a foil membrane. The nozzle is equipped with an external thread on which then the threaded cap can be screwed as a closure.

The film-reinforced paper passing through below the welded-on nozzle or the film membrane running inside the nozzle must be cut open, torn open or pushed away to open the passage and allow the liquid or bulk material to be poured out of the container through the nozzle. For this purpose, a sleeve is arranged in the interior of the nozzle, which is entrained when turning the screwed cap of this and is therefore rotated by this in the same direction of rotation. By an opposite to the thread on the outside of the nozzle and the inside of the cap thread on the inside of the nozzle and on the outside of the sleeve this moves when unscrewing the threaded cap, that is, when this moves against the liquid pack upwards, steadily down , The lower edge of the sleeve is equipped with one or more tearing or incisors. As a result, the sleeve is due to their rotation and steady downward movement, push out or cut out a disc from the film-reinforced paper passing through it or the membrane membrane there.

However, conventional self-opening closures do not work to their full satisfaction. No slices are cut out cleanly from the paper or foil membrane, but rather, these tubes simply push a piece of foil out of it. The remaining edge is jagged and thus scraps of paper or scraps of paper protrude into the passage, which should actually be exposed. These shreds also often protrude down into the container and may obstruct the path for the air to be fed from the outside into the container during pouring or pouring out, or even protrude into the path of the outflow of liquid or of the goods that have been released. For larger packages with thicker denier reinforced paper or cardboard, the opening is made even less reliable and clean. The slowly downwardly moving and simultaneously rotating sleeve touches with its entire lower edge almost simultaneously to be cut to the foil-reinforced paper web and presses them down and turns on it until a hole is more scraped or broken through clean as cut. One of the reasons why slicing is not correct is due to the fact that the film to be sliced avoids the pressure of the sleeve, which acts as a drill bit, downwards and thus the sleeve no longer acts on a flat paper foil, but on a downwardly curved one.

Next require the previous solutions as a result of the design of the sleeves, which are also referred to as Durchstosser because they pierce just a piece of paper foil as a circular disc clean cut out of him, a considerable force on the part of the user. It must namely be applied a large torque, because the teeth or tears on the lower piercer edge or sleeve edge, the film first scratch along the entire sleeve edge and then have to overcome a large rotational resistance. They act in the uppermost layer of paper thickness much like rip-off teeth, namely, chafe, press, and tear instead of acting as actual cutting blades.

In order to facilitate the breaking out or tearing off, for the conventional self-opening closures of this type, the film material or the Bonded composite by means of lasers or punching tools at the desired tear points. However, this Vorschwächen is technically associated with considerable effort. You need expensive equipment and handling the processing of the piercing points on the slides is time consuming. Despite these elaborate mitigating measures, the conventional self-opener closures do not cut cleanly, but tore open the paper or plastic film rather than cutting it clean, which explains the large rotational resistances. Because of these large rotational resistances occur from time to time even fractures of the means, which take over the transmission of torque from the threaded cap on the Durchstosserhülse, or provided Mitnehmocken which engage in grooves on the Durchstosserhülse, jump out of these grooves. If this happens, the self-opener closure is no longer functional. Another problem is that the torn-out or half-cut out foil disc is not folded down enough from the piercing sleeve, or the foil disc remains insufficiently folded down over the useful life of the cap because the piercing sleeve is not securely fixed in the end position.

All these problems should be solved by a proper self-opener closure. In addition, it would be desirable, in one variant, to have a self-opener closure which would permit automatic metering of a small amount of solid, liquid, granular or powdered substance into the contents of the composite package as soon as the closure is opened, or that Dosing of such a separate substance in solid form would cause the pouring by pouring the substance over and washed out.

It is therefore necessary to remedy these problems and to provide a self-opener closure for composite packages or sealed with film material or already sealed with film container or bottle neck, which allows for different dimensions reliable cutting of the laminate disc or film in the clear nozzle passage, where clean cut edges are achieved, so that protruding into the passage Shreds are avoided. For a variety of film materials and composites targeted attenuation of the cutting points by punching or by a laser treatment should even be eliminated. In a special embodiment, the self-opening closure should also allow the automatic metering of a small amount of substance in solid, liquid, granular or powdered form, separate from the contents of the composite package, as soon as the closure is opened. In another specific embodiment, he should also allow the metered addition of a separate solid substance by this is washed out during pouring the contents of the composite package by pouring over the pouring jet and taken away.

This object is achieved by a self-opener closure for composite packages as well as container or Flaschenstutzeri to be sealed with film material, consisting of a spout nozzle, which is sealingly mounted on a composite package or on a container or bottle neck to be closed with foil material, an associated Rotary cap and arranged within the spout neck self-opening Hutsse, which is displaceable by the rotary cap in rotation, and which is characterized in that the self-opener sleeve at its lower edge and projecting therefrom at least a single combined piercing and cutting member , And that this self-opening sleeve, the spout nozzle and the rotary cap are equipped with guide and power transmission means which cooperate with each other such that the first time turning the rotary cap in the opening direction, the self-opening sleeve first in the spout nozzle without rotation axially abwärtsbar and then is rotatable about its axis without axial movement. The extended tasks for the metered addition of separate substances are solved by embodiments according to the dependent claims.

Figur 1:

Den Selbstöffner-Verschluss mit seinen drei Bestandteilen in auseinandergenommenem Zustand in einer perspektivischen Darstellung;

Figur 2:

Die Drehkappe des Selbstöffner-Verschlusses in perspektivischer Darstellung, annähernd von unten her gesehen;

Figur 3:

Den Ausguss-Stutzen des Selbstöffner-Verschlusses in perspektivischer Darstellung, annähernd von unten her gesehen;

Figur 4:

Die Selbstöffner-Hülse des Selbstöffner-Verschlusses in perspektivischer Darstellung, annähernd von unten her gesehen;

Figur 5:

Den zusammengesetzten Selbstöffner-Verschluss in einer Draufsicht von unten her gesehen;

Figur 6:

Den zusammengesetzten Selbstöffner-Verschluss von der Seite her gesehen, in Ausgangsstellung der Selbstöffner-Hülse;

Figur 7:

Den zusammengesetzten Selbstöffner-Verschluss von der Seite her gesehen, nach einer 90°-Öffnungsdrehung der Drehkappe und dem dadurch bewirkten axialen Niederdrücken der Selbstöffner-Hülse im Innern des Ausguss-Stutzens;

Figur 8:

Den zusammengesetzten Selbstöffner-Verschluss von der Seite her gesehen, nach der vollendeten Horizontaldrehung der Selbstöffner-Hülse im Innem des Ausguss-Sutzens, und nach dem Entfernen der Drehkappe;

Figur 9:

Den Selbstöffner-Verschluss von der Seite her gesehen, nach dem erneuten Aufsetzen der Drehkappe zum Verschliessen und der ersten Phase dessen Aufdrehens;

Figur 10:

Den Selbstöffner-Verschluss von der Seite her gesehen, nach dem erneuten Aufsetzen der Drehkappe zum Verschliessen und nach dem vollständigen Aufschrauben der Drehkappe;

Figur 11:

Den Selbstöffner-Verschluss von der Seite her gesehen in einer Ausführung zum Aufschrauben des gesamten Verschlusses auf einen Gewindestutzen eines Behälters oder einer Flasche;

Figur 12:

Einen Selbstöffner-Verschluss für das automatische Zudosieren einer gesonderten Substanz, ausgelöst durch das Öffnen des Verschlusses, von der Seite her gesehen in einem Teilschnitt, auf eine Verbundpackung aufgeschweisst;

Figur 13:

Eine Variante eines Selbstöffner-Verschluss mit Dosierkammer zum Aufschrauben des gesamten Verschlusses auf einen Gewindestutzen eines Behälters oder einer Flasche, von aussen gesehen;

Figur 14:

Den Selbstöffner-Verschluss nach Figur 13 in einer perspektivischen Ansicht von schräg unten;

Figur 15:

Den Selbstöffner-Verschluss nach Figur 13 und 14 in einem Schnitt dargestellt;

Figur 16:

Einen Selbstöffner-Verschluss mit zusätzlich eingebautem Nippel zum Entfernen der von der Selbstöffner-Hülse herausgeschnittenen Folienscheibe in einem Schnitt dargestellt;

Figur 17:

Einen Selbstöffner-Verschluss mit zusätzlich eingebautem Nippel zum Entfernen der von der Selbstöffner-Hülse herausgeschnittenen Folienscheibe in einer Ansicht von oben mit zwei Schnittdarstellungen längs der Linien A-A und B-B der Figur mit der Ansicht von oben;

Figur 18:

Den Ausguss-Stutzen des Selbstöffner-Verschlusses gemäss Figur 17 in einer Ansicht von oben mit zwei Schnittdarstellungen längs der Linien A-A und B-B der Figur mit der Ansicht von oben;

Figur 19:

Die Selbstöffner-Hülse und den Nippel zum Entfernen der herausgeschnittenen Folienscheibe des Selbstöffner-Verschluss nach Figur 17 mit zwei Schnittdarstellungen längs der Linien A-A und B-B der Figur;

Figur 20:

Die Kappe des Selbstöffner-Verschluss nach Figur 17 mit zwei Schnittdarstellungen längs der Linien A-A und B-B der Figur;

Figur 21:

Eine Kappe eines Selbstöffner-Verschlusses mit integrierter Dosierhülse zum Zudosieren einer separaten Substanz;

Figur 22:

Einen Selbstöffner-Verschluss mit einer Kappe mit Dosierstutzen in einem teilweisen diametralen Schnitt dargestellt, mit aufgeschweisster Verpackungsfolie.

In the figures, advantageous embodiments of this self-opening closure for composite packages are shown in different views. These self-opening fasteners will be described in detail below with reference to these figures, and their function will be explained and explained.
It shows:

FIG. 1:

The self-opener closure with its three components in disassembled state in a perspective view;

FIG. 2:

The rotating cap of the self-opener closure in perspective view, seen approximately from below;

FIG. 3:

The spout neck of the self-opener closure in perspective view, seen approximately from below;

FIG. 4:

The self-opener sleeve of the self-opener closure in perspective view, seen approximately from below;

FIG. 5:

Seen the composite self-contained closure in a plan view from below;

FIG. 6:

The composite self-opening closure seen from the side, in the starting position of the self-opening sleeve;

FIG. 7:

The composite self-contained closure seen from the side, after a 90 ° -Offnungsdrehung the rotary cap and thereby causing axial depression of the self-opening sleeve inside the spout neck;

FIG. 8:

The composite self-opening closure seen from the side, after the completed horizontal rotation of the self-opener sleeve in the interior of the spout-Sutzens, and after removing the rotary cap;

FIG. 9:

The self-opening closure seen from the side, after re-attaching the rotary cap for closing and the first phase of its revolving;

FIG. 10:

The self-opening closure seen from the side, after re-attaching the rotary cap for closing and after the complete screwing the rotary cap;

FIG. 11:

The self-opener closure seen from the side in a design for screwing the entire closure on a threaded neck of a container or bottle;

FIG. 12:

A self-opening closure for the automatic dosing of a separate substance, triggered by the opening of the closure, seen from the side in a partial section, welded onto a composite package;

FIG. 13:

A variant of a self-opener closure with metering chamber for screwing the entire closure on a threaded connector of a container or a bottle, as seen from the outside;

FIG. 14:

The self-opener closure of Figure 13 in a perspective view obliquely from below;

FIG. 15:

The self-opener closure of Figures 13 and 14 shown in a section;

FIG. 16:

A self-opener closure with additionally built-in nipple for removing the cut out of the self-opening sleeve film disc shown in a section;

FIG. 17:

A self-opening closure with additionally built-in nipple for removing the cut out of the self-opening sleeve disc in a top view with two sectional views along the lines AA and BB of the figure with the view from above;

FIG. 18:

The pour spout of the self-opener closure according to Figure 17 in a view from above with two sectional views along the lines AA and BB of the figure with the view from above;

FIG. 19:

The self-opener sleeve and the nipple for removing the cut-out disc of the self-opening closure of Figure 17 with two sectional views along the lines AA and BB of the figure;

FIG. 20:

The cap of the self-opener closure of Figure 17 with two sectional views along the lines AA and BB of the figure;

FIG. 21:

A cap of a self-opener closure with integrated dosing sleeve for dosing a separate substance;

FIG. 22:

A self-opening closure with a cap with metering nozzle shown in a partial diametrical section, with welded packaging film.

In Figure 1, the self-opener closure is shown in perspective with its three components in a disassembled state, the view falls obliquely from below on the closure. It can be seen on the right the rotary cap 1, in the middle of the spout 2 and on the left the self-opening sleeve 3. Within the rotary cap 1, which is designed here as a threaded cap 1 and is equipped with an internal thread 4, one recognizes as an essential feature two These cylinder wall segments 5 serve as a force transmission means, thus when turning the threaded cap 1 in the release direction, that is seen from above on the threaded cap 1 in the counterclockwise direction, from her a torque on the self-opening sleeve. 3 is transferable. Incidentally, it is also possible, and even with advantage, to provide three identical cylinder wall segments arranged concentrically to the cap rotation axis, because then the force is transmitted more evenly to the self-opening sleeve, as will be explained later. The exact shape and design of these cylinder wall segments 5 will emerge from further drawings. To the left of the rotary cap 1, the spout 2 of the closure is shown. It essentially forms a hollow cylindrical neck or pipe section, which is provided on its outer side with an external thread 6, which fits the internal thread 4 of the rotary cap 1. On the lower side of the spout-neck 2, in the illustration shown on the left side, you can see a radial projection 7 at the bottom of the nozzle. With this projection 7, which forms a flange at the lower end of the spout neck 2, the spout-neck 2 is welded in a known manner to a composite package, so that the bottom of the flange rests on the composite and is sealingly connected to the same. On the inside of the spout neck 2 can be seen various guide webs 8, of which the one L-shaped guide webs 17. These guide webs 8,17 serve to ensure that the self-opening sleeve is guided in the interior of the spout neck 2 in the desired manner, as will become clear later. On the far left of the picture you can see the self-opening sleeve 3. This fits into the interior of the spout-neck 2 and here has a single combined piercing and cutting member 9. This lancing and cutting member 9 is integrally formed here at the bottom of the self-opener sleeve 3. It forms in the example shown an equilateral triangle, wherein the downwardly projecting tip 10 is sharpened and also the remaining free sides of the triangle sharpened edges 11 form. Therefore, this triangle acts as a lancing cutter 9, as will be described below. In an advantageous variant, which is particularly suitable for thicker sealing foils, it is also possible to provide two piercing cutters 9 instead of one, which are then formed approximately diametrically opposite one another at the lower edge of the self-opening sleeve 3. Such a second punch cutter 9 is indicated here by dashed lines. With two in this way opposite lancing cutting 9 is achieved that the reaction forces acting on the sleeve during the piercing of the film are uniformly distributed and thus not only act at one point. This ensures that the sleeve 3 in the nozzle 2 is not tilted. At the upper edge of the self-opener sleeve 3, on the inside thereof, one can see a driving cam 12. This belongs to the power transmission means and, together with the diametrically opposite same driving cam, which is not visible here, the torque applied by the rotary cap 1 and transmits it to the self-opener sleeve 3 so that it rotates with the rotary cap 1. Instead of individual cams 12 may also be arranged a continuous web, so a connection between the two cams 12. The power transmission is then secured in the sense that no cams can slide off any guide ribs. However, then the flow of this web is a bit disturbed. On the outside of the self-opener sleeve 3 you can see guide ribs 21, which serve to force the self-opening sleeve 3 under the influence of the torque acting on them in a certain movement. These guide ribs 21 are formed U-shaped, by consistently consist of a horizontally extending on the outer wall of the self-opening sleeve section 22 and two from the ends vertically downward vedaufenden legs 23rd

FIG. 2 initially shows the rotary cap 1 of the self-opening closure in a perspective view approximately from below and separately shown. This rotary cap 1 is here equipped with two oppositely disposed, concentric with the axis of rotation of the rotary cap 1 cylinder wall segments 5, which are integrally formed on the inside of the cap lid 16. As already mentioned above, it can also be three cylinder wall segments, which are arranged distributed over the circumference. The cylinder wall segments 5 are each in each case all identical, but specially shaped. Namely, the lower edges of the segments 5 have two portions ascending in opposite directions, wherein these rising edge portions 13, 14 are offset axially with respect to the rotary cap 1, so that a step 15 is formed in the middle. The first edge portion 13 seen here in a counterclockwise direction starts to rise from the level of the cap lid 16 and ends after a peripheral portion of 90 ° of the cylinder wall segment 5, in the case of three segments after a peripheral portion of 60 °, about this section about 2 / 3 the height of the cylinder wall segment 5 increases. This height corresponds approximately to 1.5 times the thread height at the threaded cap 1. Following this section with rising edge follows a vertical step 15 which extends to the level of the lower edge of the rotary cap, which at the same time Height of the cylinder wall segment 5 itself corresponds. The counter-rising edge portion 14 of the cylinder wall segment 5 begins to rise at the level of the lower beginning of the step 15 and extends to the upper end of the step 15. In this case, this edge portion 14 extends by slightly less than 90 ° along the circumferential direction of the cylinder wall segment fifth , which therefore extends in total by approximately 180 °. In the embodiment with three cylinder wall segments, the edge portion 14 extends correspondingly by a little less than 60 ° and a single cylinder wall segment then extends by approximately 120 °. Between the cylinder wall segments 5 and the inner wall of the rotary cap 1 remains so much space that there on the one hand, the wall of the spout nozzle 2 as well as arranged in the interior of the spout-neck 2 self-opener sleeve 3 space.

FIG. 3 shows the pouring spout 2 of the self-opener closure in a perspective representation, seen approximately from below, in a separate representation. On its outside, the wall of the spout-neck 2 is equipped with an external thread 6, on which the internal thread 4 of the rotary cap 1 can be screwed. However, the external thread 6 extends only by three turns from the lower edge of the spout neck 2, while the wall remains free or smooth. On the inner wall of the spout-neck 2 guide webs are formed 8.17. These are two L-shaped guide webs 17 arranged on the inner wall at opposite locations on the one hand and two guide webs 8 arranged horizontally on the spout connecting piece 2 in between at two opposite points. In the illustration shown, of each guide web type 17, 8 but only a single viewable. In the embodiment with three cylinder wall segments of each type guide ridge are each distributed in the manner shown distributed around the circumference three. At the bottom of the spout-neck 2, the radial projection 7 can be seen, which forms a flange, with the underside of the nozzle 2 is welded onto a composite package. At one point at the lower inner edge of the flange is seen a cam 20. This cam acts as a stop cam 20 for the rotating self-opening sleeve 3, as will be explained later in the description.

FIG. 4 shows the self-opening sleeve 3 separately from obliquely below, but shown in a different rotational position than in FIG. The self-opening sleeve 3 is dimensioned in diameter so that it fits into the interior of the spout neck 2, wherein the guide ribs 21 each come to lie in those places in the spout 2, where it has no guide webs 8,17. In the illustration shown you can see from the outside on the individual lancing cutter 9. A second lancing cutter 9 is shown here by dashed lines. Above the pierce cutter 9, one of the U-shaped guide ribs 21 is arranged. Whose one vertical leg 23 is not quite enough to the lower edge of the sleeve 3, as is also true for all other vertical guide rib sections 23, with a single exception, namely the visible here leg 24, which, if one from above or here looking back on the self-opener sleeve 3, the punch cutter 9 precedes in the counterclockwise direction. This section 24 thus extends to the lower edge of the self-opening sleeve 3 and has the function that it strikes after completion of horizontal movement of the self-opening sleeve 3 on the stop cam 20 shown in Figure 3 on the spout 2 and thus the rotation of the sleeve 3 in Inside the spout neck 2 limited.

FIG. 5 shows the self-opener closure in the assembled state, viewed directly from below. It can be seen first, the flange-like projection 7 and in the interior of the spout-neck 2, the concentric inserted self-opener sleeve 3 and also concentrically arranged cylinder wall segments 5 on the inside of the lid 16 of the rotary cap 1. It recognizes both the guide ribs 21 on the self-opening sleeve 3 and the lancing cutter 9 and the optional second lancing cutter drawn in dashed lines. In addition, one recognizes the guide webs 21 on the outer wall of the spout nozzle, which alternate around the entire circumference. Next, the two diametrically opposite driving cam 12 are visible. It is clear that instead of mere driving cam 12 as shown here, a diametrically continuous web can take over their function. A bridge-like web connecting the two driving cams 12 shown in the drawing, has the advantage that the self-opening sleeve can be sprayed from the middle of the web. It then has namely a central injection point, which generally facilitates the plastic injection and a higher strength of the molded part results as a gating over so-called side gates, so laterally arranged spray nozzles. Such are necessary in the embodiment shown. The part shown in Figure 5 is thus injected from two opposing spray nozzles and the injected plastic must converge in the injection mold cavity and connect intimately. However, the design without a bridge has the advantage that the spout remains free and does not hinder the outflow, while a bridge extends naturally across the spout and thus obstructs the outflow. Depending on the application, it is therefore necessary to weigh up the advantages and disadvantages of a design with or without a bridge.

In FIG. 6, the assembled self-opening closure is shown from the side, in the initial position, that is, before it is opened for the first time. It can be seen in the starting position, only the rotary cap 1 and the lower part of the spout-neck 2, namely its lower radial projection 7. At the bottom of the rotary cap 1, as shown here have a guarantee strip 25, which has a number of thin material bridges 26 with the rotary cap 1 is connected. This guarantee strip 25 is slipped when first putting the rotary cap 1 on a special bead which rotates the nozzle 2 at the spout nozzle 2 below the external thread. The bead, which, however, is not visible here, has for this purpose a rounded upper edge and an edged lower edge, so that the guarantee strip 25, once it is slipped over this bead, no longer back over the bead can be pulled up, because this acts like a barb, but the guarantee strip 25 below this bead completely overflows the spout nozzle. To open the closure, that is to turn away the rotary cap 1, the guarantee strip 25 must first be torn away while breaking the material bridges 26. Only then can the rotating cap 1 be rotated and unscrewed from the neck 2.

FIG. 7 shows the assembled self-opening closure viewed from the side after the axial or vertical depression of the self-opening sleeve in the interior of the pouring spout 2. The piercing cutter 9 now projects completely beyond the lower edge of the flange-like projection 7. also the approximately diametrically opposite, drawn here in dashed lines, if such a second lancing cutter 9 is present. After the tamper-evident tape has been removed, the turning cap 1 can be turned counterclockwise when viewed from above. Accordingly moves in the case of a threaded cap 1 the same at the spout nozzle upwards. At the same time the rising edge portion 13 acts on its inner cylinder wall segments 5 on the driving cam 12 on the inserted self-opening sleeve 3 and pushes them down. The one or more piercers 9 come into action and it is exactly the same as a can opener in the first phase. The film or composite package is pierced toward it in a pure vertical motion, at one location, or in two places, in the case of two grooving blades 9. This is very important, because only if the film is initially only pierced, then a clean cut can be achieved with a cutting motion. This self-opener closure makes use of the can opener effect. Just like a can opener for a tin box first consistently pierces the rifle plate vertically and only afterwards with the cutting of the sleeve cover along the rifle edge begins, here also with a pure vertical or axial movement of the individual piercing cutter 9 or the two opposite cutting cutter 9 the pierced underlying foil or the composite package. The torque applied to the rotary cap 1 is thus converted into a pure axial movement of the self-opening sleeve 3, and thus the power is first aufgestellt focused on the pure piercing of the film or composite package, in a way like that with the conventional self-opener sleeves so far never Case was. For this purpose, the tip 10 of the piercing cutter 9 is sharpened and also the circumferentially facing edges 11 of the piercing cutter 9 are sharpened so that the tip 10 when piercing the generated hole in the film or composite package seamlessly expanded on both sides. After knocking down the single piercer 9 or in case of two Puncture 9 of the two lancing cutter 9 takes this or take this the position shown here and thus surmount the projection 7 on the spout 2 down. The rotary cap 1 has meanwhile been rotated by 90 ° in the opening direction and has been screwed a bit far up the spout 2, but can not be removed yet. Meanwhile, in their interior, the edge portions 13 of the cylinder segments 5 have pivoted about 90 ° relative to the self-opening sleeve 3 as well. The self-opener sleeve 3 is guided with its guide ribs 21, namely with their vertical sections 23,24, initially non-rotatably on the vertical sections 18 of the guide webs 8 on the spout 2. Therefore, it is merely pushed vertically downwards by the edge sections 13 of the cylinder segments 5 until the ends of the edge sections 13 have reached the inwardly pointing driver cams 12 on the self-opening sleeve 3. Now the self-opener sleeve 3 relative to the spout nozzle 2 is moved down so far that their vertical guide rib sections 23,24 are moved below the vertical portions 18 of the guide webs 8 on the spout 2. Therefore, now the self-opener sleeve 3 can be rotated in the spout 2.

So if you turn on the rotary cap 1 further counterclockwise, the steps 15 come at the lower edges of the cylinder wall segments 5 in action and put the self-opening sleeve 3 in a horizontal rotation about its axis of rotation by these stages 15 push the driving cam 12 in front of him , The self-opener sleeve 3 is guided along the horizontal portions 22 of its guide ribs 21 and 19 of the guide webs 8 at the spout 2. This rotation in the horizontal plane now causes the lancing cutter 9 to act as a pure cutting member by the sharp edge 11, which faces in the counterclockwise direction, the clean cut film or composite package clean. The cutting rotation extends over almost 360 ° in the case of a single engraving cutter. Shortly before reaching the full rotation, ie about 5 ° before reaching a 360 ° rotation, comes a vertical portion 24 of that guide rib 21 which is located above the lancing cutter 9, on the stop cam 20 on the spout 2 to stop and the rotation of the Self-opener sleeve 3 comes to a stop. At the same time, the rotary cap 1 has this position obtained as a result of the threaded connection with the spout nozzle 2 in height relative to the spout nozzle 2 that it is released from the thread and therefore can be withdrawn vertically upwards or lifted away. The almost 360 ° rotated self-opener sleeve 3 has thereby cut out a disk of the film or composite material and as a result of its rotation by approximately 360 °, this disc is pivoted downwards and releases the flow. 8 shows this just described movement phase of the self-opener sleeve 3 seen from the side, and its end position after the completed horizontal rotation of the self-opening sleeve 3 in the interior of the spout-Sutzens 2, and hinted the cut-out film plate 27 in the pivoted state located. The rotary cap 1 has been removed and the contents of the composite package can now be poured freely by pivoting the package through the spout nozzle 2. If the self-opener sleeve 3 is equipped with two approximately opposite lancing cutting edges 9 - a second lancing cutter is shown here in dashed lines - the geometry with the vertical section 24 of that guide rib 21 which is arranged above the lancing cutter 9 and on the stop cam 20 at the pouring spout Stub 2 comes to a stop, so chosen that a rotation of the self-opener sleeve 3 by only 180 ° is possible. Because the two lancing cutters 9 are not arranged exactly opposite one another, the one lancing cutter 9 then intersects a section through which the second has already cut, while this second end leaves a small section of the foil undurched, around which then the cut-out foil disc 27 is swung off

If you do not pour out everything immediately, the closure can be closed again. For this purpose, the rotary cap 1 is placed back on the spout nozzle 2 and the closure screwed. FIG. 9 shows the self-opening closure seen from the side after this renewed placement of the rotary cap 1 and the first phase of its screwing. In this screwing the rotary cap 1 after the first opening, the edge portions 14 of the cylinder segments 5 come with opposite slope in action. When you first turn the rotary cap 1 over after the first opening, you paint over the inner edge the self-opening sleeve 3 arranged driving cam 12 and push the self-opening sleeve 3 first a first distance into the spout 2 and thus into the container, whereby the previously cut out, dashed line drawn disc 27 is further pivoted into the container interior, as shown in Figure 9.

When continuing to screw in the course of the first screwing the rotary cap 1, these edge portions 14 are rotated beyond the driving cam 12. After a rotation of almost 180 ° - at three cylinder wall segments according to such by almost 120 ° - and meanwhile continued downward movement of the rotary cap 1 on the spout 2 sweep these edge portions 14 of the cylinder wall segments 5, the driving cam 12 again and push the self-opener sleeve 3 in a second push again a little further into the composite packing container. 10 shows the self-opening closure seen from the side in this final position, that is, after renewed placement and complete Zuschrauben the rotary cap 1. Thus, the cut-out slide 27 with the renewed screwing the rotary cap after their first removal very reliable far in pivots the container in and thus the spout nozzle 2 completely released, that is, the low-pivoted disc 27 no longer protrudes into the flow area of the spout nozzle 2 or in the liquid jet produced during pouring. Rather, it is pivoted into the container far down and is held in this position by the pushed in two more pushes down lancing cutter 9.

It is understood that the rotary cap 1 does not necessarily have to be a threaded cap, but the principle of this self-opener closure also works with a rotating cap that forms with the spout nozzle about a bayonet. It must be less steep then only the slopes of the edge portions of the cylinder wall segments on the inside of the cap lid. In addition, the self-opening closure outside have variously designed pivot caps. Thus, in the case of a threaded cap, a knurled or grooved handle surface is advantageous so that it can also be used against hand the resistance, which arises by the stinging and cutting of the film, can be easily rotated. For particularly strong composite materials and films or for particularly large-sized versions of this closure, the rotary cap in the floor plan can also have a four, six or octagonal outer shape, so that it can be opened with a fork wrench or a wrench. As an alternative, a design is conceivable in which the threaded cap upper side has at least one diametrical groove, so that it can be opened approximately with the aid of a coin or a transversely placed on them square steel. Further, it may also have an upper surface on which a diametrical, upwardly projecting web is formed, on which the rotary cap can be rotated particularly well by hand and larger torques can be applied, especially if needed, a tool, for example a Englishman or a pair of pliers is used.

Figure 11 shows an alternative embodiment of this self-opener closure for mounting on the neck of a container or bottle. In this case, the lower part of the closure is shown in a section along the axis of rotation of the screwed-on rotary cap. The spout-neck 2 has in this case on its underside no projecting edge, but is transferred via a shoulder 28 in a threaded sleeve 29 which can be screwed onto the external thread of a bottle neck or on the spout nozzle of any container. The durchzustechende and then aufzuschneidende sheet 30 may be welded as a separate part of the bottom of the shoulder 28 or already located on top of the not marked mouth of the bottle neck with external thread, with which it is welded, so that the bottle contents is sealed.

FIG. 12 shows a further special variant of the lid-opener closure. This closure is shown here in a side view in a partial section, welded on a composite package 31. After the self-opener closure is made and assembled, which is done by machine by also the threaded cap 1 pressed onto the nozzle 2 and the self-opener Sleeve 3 is inserted, then the closure in filled with a separate substance 33 which is to be mixed with the same before use of the composite packaging contents. This substance 33 may be, for example, an effervescent powder, a concentrate or other pourable granules, powder or a liquid. The self-opener closures filled with this substance are subsequently closed by welding or gluing a sealing foil laminate disc 32 onto the underside of the flange or the projection 7 on the spout 2. This film disk 32 may be made of the same material as the composite package 31 itself or another sealing laminate film with an aluminum or plastic layer. The self-opener closures filled in this way with a substance are then welded or glued onto a composite pack 31 with their lower foil disc 32. If the closure is opened for the first time, the tip of the piercing cutter 9 of the self-opening sleeve 3 not only punctures the composite package 31, but also the foil disk 32. Upon further rotation of the closure cap 1, the piercing cutter 9 cuts a round disk out of the film disk 32 and the composite package 31 out and folds them into the interior of the composite package 31 inside. This has the consequence that the substance 33 falls inside the self-opener closure in the composite package. The composite pack can then be slightly shaken to better mix the substance with its contents, including, if necessary, the threaded cap is screwed again. Afterwards, the contents are prepared for use and can be poured out after repeated opening of the closure.

In yet another embodiment, the inside of the self-opening sleeve may be coated with a certain soluble substance. In this case, during pouring, an automatic metering of this separate coating substance is carried out by washing it away from the pouring jet and entraining it.

FIG. 13 shows an alternative embodiment of a self-opening closure with dosing chamber for screwing the entire closure onto a threaded connection of a container or a bottle from the outside. He consists of a cover cap 1 and the underlying spout with molded-on threaded sleeve 29 for screwing the closure onto a container. FIG. 14 provides a view from below into this embodiment variant. One recognizes the thread ribs 38 on the threaded sleeve 29 and on the underside of the shoulder 28 between the threaded sleeve 29 and spout 2 two concentric grooves 39. On these grooves 39 is a circular disc-shaped film can be placed, with their diameter corresponding to the inner diameter of the threaded sleeve 29, so the shoulder 28 is completely covered by her. This film can then be welded to the grooves 39, which can be done for example by a conventional ultrasonic welding. Previously, the space within the spout-neck 2 can be filled with a separate substance, so that then the welded circular disc-shaped film sealingly encloses this substance. It can be seen in the shown view of the self-opener closure still the upper edge of the lid cap 1, then within the spout nozzle 2, the cylinder wall segments 5 on the underside of the lid cap 1 and around the same arranged around the self-opener sleeve 3 with her at least one pierce cutter. 9 and one of its driving cam 12. In Figure 15, this self-opener closure is still shown in a sectional view. Thus, when a film disc is welded from below onto the grooves 39 and the cover cap 1 is rotated for the first time in the opening direction, the self-opening sleeve 3 is first pushed axially downwards and the piercing and cutting member 9 pierces the film. Thereafter, the self-opening sleeve 3 is placed in a pure rotation about its axis of rotation and thereby the cutting member 9 cuts the film along the inner edge of the spout-neck 2. The previously held over the film substance thereby falls into the interior of the container and is mixed with its contents.

FIG. 16 shows a further particular variant of the self-opening closure. This closure shown here has an additional built-in nipple for removing the cut out of the self-opening sleeve disc. You can see here the closure of slightly obliquely shown below in a diametric section, with the previously described parts cap 1, spout 2 and self-opener sleeve 3. On the bottom of the But cap 1 is now additionally formed a nozzle 34 which has an outwardly projecting edge 35 at its lower end. Consequently, when the cover cap 1 is rotated, this connection piece 34 also rotates with it. A nipple 36 is now slipped over this neck 34 from below, with the edge 37 projecting inwards at its upper end. The geometry and elasticity of these two projecting edges 35, 37 allow the nipple 36 to be slipped over the neck 34 and once it is put over it, it is held by it by the edges 35,37, which then engage behind each other. However, the nipple 36 is freely rotatable relative to the nozzle 34. The function of this on the cover cap 1 both axially displaceable and rotatable nipple 36 is now the following: If the self-opener closure is welded to a foil or prepared composite package and for this purpose with the bottom of the projection 7 on the spout 2 on the film or packaging is welded, so at the same time, the lower edge 40 of the nipple 36 is welded to this film or this packaging. When you first open the shutter yes, as already described, the self-opening sleeve 3 is pushed down, the piercing and cutting member 9 stabs the foil or composite pack and then the self-opening sleeve 3 is rotated, so that the piercing and cutting member 9 is a circular Performs movement while a circular disc shaped disc from the foil or the composite package cuts out. The lancing and cutting member 9 moves between the spout 2 and the nipple 36 around it. At the same time yes, the rotary cap 1 is raised by its thread and with it the nozzle 34, while the nipple 36 remains stationary. The after a 360 ° rotation of the self-opener sleeve 3 completely cut out of the film or composite disc hernach afterwards only at the bottom of the nipple 36. If now the cap 1 is removed, the nozzle 34 pulls on its underside the nipple 36 with it up and the cut out circular disc is thereby removed from the packaging.

FIG. 17 shows such a self-opening closure in a view from above and next to it and below it two sectional views along the lines AA and BB of the figure. In these representations, all parts are in the assembled state shown. FIG. 18 shows the pour spout separately shown to this self-opener closure, from above and next to it and below in two diametrical sections along the lines AA and BB of the figure. FIG. 19 shows the self-opening sleeve 3 shown separately, from above and next to it and below in two diametrical sections along the lines AA and BB of the figure. In this variant, as shown in FIG. 19, the nipple 36 is connected to the self-opening sleeve 3 via two thin material webs 41, to which fill webs may serve, for example, so that these two parts can be sprayed in one operation. Finally, FIG. 20 shows the associated cover cap 1 separately, likewise from above and next to it and below in two diametrical sections along the lines AA and BB of the figure. In this embodiment of the closure, it is ensured that the cut-out foil disc is completely removed and therefore no longer pivoted down into the packaging.

Finally, Figure 21 again shows another variant of this self-opener closure, here only an associated special cover 1. The special feature of this cover cap 1 is that it has a concentrically arranged to cap 1 Dosierstutzen 42 which formed on the underside of the cap lid 43 is. This nozzle 42 is formed by a pipe section which extends downwards from the underside of the cap lid 43 and is dimensioned so long that it is screwed on cap screw 1, that is, when this is screwed onto a spout nozzle with self-opener sleeve, with its lower edge 44, the flange-like projection 7 on the spout neck 2 projects beyond. Now, if a film or a composite laminate is welded to the underside of the projection 7, so the lower edge 44 of the Dosierstutzens 42 acts on this laminate or this film, as shown in Figure 22. There, the lower portion of the closure is shown in a diametric section, while the lid cap 1 is seen from the side. The closure is welded with its spout nozzle 2 on the composite laminate 31 of a composite package or on a sealing film 30, which serves for sealingly closing a container or a bottle neck. But before the closure is welded, which is in If the situation is upset, so that the opening of the metering nozzle 42 projects upwards, the metering nozzle 42 is filled with a substance 45, which is to be added to the contents of the packaging, the container or the bottle later. Such a substance 45 is, for example, a solid substance, one or more small pieces thereof, a powdery or granular, free-flowing substance, or a flowable to liquid medium. When welding the film 30 or the composite laminate 31 on the underside of the spout neck 2, so what happens from the top of the fallen closure and spout 2, suggests the dosing 42 due to its length with its lower edge 44 on the film 30 or the laminate 31 and this is therefore slightly biased welded to the underside of the nozzle 2. As a result, a sealing of the content 45 of the Dosierstutzens 42 is achieved by the film 30 or the laminate 31 This content is also particularly well sealed against the ambient air of the closure, on the one hand by the wall of Dosierstutzens 42 and on the other hand still from the cover cap 1. The content So double-walled gas-tight insulated and any ingress of air or water vapor is safely prevented. When the closure is first opened, the self-opening sleeve with its piercing cutting edge 9 cuts a disk from the laminate 31 or the sealing film 30, causing the content 45 of the metering nozzle to fall out of it into the composite package or bottle and be mixed with its contents.

Claims (14)

1. A self-opener closure for composite packagings as well as for container spouts to be closed with film material, consisting of a pour-out spout (2) which may be sealingly assembled onto a composite packaging or onto a container spout or bottle spout closed with a film material, of an associated rotary cap (1) as well as a self-opener sleeve (3) which is arranged within the pour-out spout (2) and which may be set into rotation by the rotary cap (1), characterised in that the self-opener sleeve (3) at its lower edge and projecting from this comprises at least one combined piercing and cutting member (9), and that this self-opener sleeve (3), the pour-out spout (2) as well as the rotary cap (1) are equipped with guide and transmission means which cooperate with one another in a manner such that on rotating the rotary cap (1) for the first time in the direction of opening, the self-opener sleeve (3) firstly may be pushed axially downwards in the pour-out spout (2) without rotation and subsequently is rotatable about its rotary axis without axial movement.
2. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to claim 1, characterised in that on the lower side of the associated rotary cap (1) and concentrically to this there is integrally formed a spout (34) with a projecting edge (35) at its lower end, over which a nipple (36) with an inwardly projecting edge (37) on its upper side is pushed, wherein the two projecting edges (35, 37) engage behind one another, by which means the pushed-over nipple (36) is rotatable with respect to the spout (34) integrally formed on the rotary cap lower side and is longitudinally displaceable in the axial direction, and the free displacement path in the axial direction corresponds at least to the axial path of the rotary cap (1) which this executes on rotating in the opening direction for the first time, until the self-opener sleeve (3) firstly is pushed axially downwards in the pour-out spout (2) and subsequently is rotated by 360° about its rotational axis without axial movement.
3. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to claim 2, characterised in that the nipple (36) is connected to the self-opener sleeve (3) via thin material webs (42) which are envisaged to act as break-off locations.
4. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to one of the preceding claims, characterised in that the force transmission means on the rotary cap (1) cooperating with one another include two cylinder wall segments (5) which are arranged on the inner side of the rotary cap lid (16) concentrically to the rotary cap axis and their lower edge lying in the axial direction forms a guide curve which cooperates with the force transmission means (12) on the self-opener sleeve (3) which consists of two cams (12) on the upper inner edge of the sleeve (3), and that the guide means cooperating with one another consist of guide ribs (21) on the outer side of the self-opener sleeve (3), and guide webs (8) on the inner side of the pour-out spout (2), so that on rotating the rotary cap (1) in the opening direction for the first time the self-opener sleeve (3) may firstly be pushed vertically downwards in the pour-out spout (2) and subsequently rotated in the horizontal about approximately 360°.
5. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to one of the claims 1 to 3, characterised in that the self-opener sleeve (3) at its lower edge and projecting from this comprises two combined piercing and cutting members (9) arranged approximately diametrically opposite one another, and that the force transmission means on the rotary cap (1) cooperating with one another include three cylinder wall segments (5) which are arranged concentrically to the rotary cap axis on the inner side of the rotary cap lid (16) and their lower edge lying in the axial direction forms a guide curve which cooperates with the force transmission means (12) on the self-opener sleeve (3) which consist of three cams (12) on the upper inner edge of the sleeve (3), and that the guide means cooperating with one another consist of guide ribs (21) on the outer side of the self-opener sleeve (3) and guide webs (8) on the inner side of the pour-out spout (2), so that on rotating the rotary cap (1) in the opening direction for the first time the self-opener sleeve (3) firstly in the pour-out spout (2) may be pushed vertically downwards and subsequently may be rotated over approximately 180° in the horizontal.
6. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to one of the preceding claims, characterised in that the force transmission means (5) on the rotary cap (1) cooperating with one another include several cylinder wall segments (5) which are arranged on the inner side of the rotary cap lid (16) concentrically to the rotary cap axis and whose lower edge lying below in the axial direction forms two edge sections (13, 14) ascending counter to one another which are displaced to one another in the axial direction in a stepped manner, wherein the first edge section (13) seen from below into the rotary cap lid (16), ascends in the anti-clockwise direction from the level of the rotary cap lid (16), and the second counter ascending edge section (14) ascends in the clockwise direction from the level of the end of the first ascending edge section (13), and that the force transmission means (12) on the self-opener sleeve include several catching cams (12) on the upper edge, further that each combined piercing and cutting member (9) on the self-opener sleeve (3) includes a piercing cutter (9) projecting from the lower sleeve edge with a sharpened tip (10) and with cutting edges (11) sharpened in the circumferential direction of the sleeve, as well as that the guide means on the self-opener sleeve (3) cooperating with one another consist of several guide ribs (21) arranged distributed over its circumference on the outer wall, with in each case two vertical sections (23, 24) and a horizontal section (22) connecting these on the upper side, and of guide webs (8) cooperating with these guide ribs (22, 23, 24) on the inner wall of the pour-out spout (2), said guide webs having horizontal sections (19) which in the initial rotational position of the self-opener sleeve (3) applied in the pour-out spout (2) with respect to the pour-out spout (2) extend over the circumferential sections (19) on the self-opener sleeve (3) which remain free, wherein at least two horizontal sections (19), seen from above onto the pour-out spout (2) in the clockwise direction comprise a vertical section (18) connecting thereto, so that on untuming the threaded cap (1) the self-opener sleeve (3) is vertically guided therein in a manner such that the catching cam (12) on the sleeve (3) may be pushed downwards along the vertical sections (23, 24) of the guide ribs (21) and guide webs (8) by that ascending edge section (13) on the cylinder wall segment (5) which reaches up the threaded cap lid (16), until the catching cam (12) abuts on the step (15), and subsequently may be set by this into a horizontal rotation below and along the horizontal sections (22) of the guide ribs (21) and the guide webs (8).
7. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to claim 6, characterised in that the rotary cap (1) is a threaded cap (1) with an inner thread (4) and the pour-out spout (2) is a threaded spout with an outer thread (6), and that one of the four guide ribs (21) arranged distributed on the outer wall of the self-opener sleeve over its circumference extends over that circumferential region over which the piercing cutter (9) extends, and that that vertical section (24) of this guide rib (21) which seen from above in the anti-clockwise direction is located in front of the piercing cutter (9), thus precedes it on rotation in the anti-clockwise direction, extends up to the lower edge of the self-opener sleeve (3), and that at the lower inner edge of the pour-out spout (2) there is formed an inwardly projecting abutment cam (20) which in the initial position of the self-opener sleeve (3) applied in the pour-out spout (2) bears on the location of the tip (10) of the piercing cutter (9), wherein the effective height and pitch of the thread on the threaded cap (1) is dimensioned such that the self-opener sleeve (3) may firstly be pushed vertically downwards by the force transmission means up to the screwed-free position of the threaded cap (1), until the piercing cutter (9) projects beyond the lower edge of the pour-out spout (2), and subsequently is rotatable over approximately 360° in the horizontal plane, in which position the vertical section (24) of the guide rib (21) reaching up to the edge abuts the abutment cam (20) and prevents a further rotation of the self-opener sleeve (3).
8. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to claim 6 or 7, characterised in that the edge sections (13) of the cylinder wall sections (5) which seen from below into the threaded cap (1) ascend into the clockwise direction are dimensioned such that on screwing the threaded cap (1) onto the pour-out spout (2), after its unscrewing for the first time, they in each case slide twice over the inwardly projecting cams (12) on the self-opener sleeve (3) and as a result push it downwards within the pour-out spout (2) in two thrusts.
9. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to one of the preceding claims, characterised in that each combined piercing and cutting member (9) on the self-opener sleeve (3) is a piercing cutter (9) projecting from the lower sleeve edge in the form of an isosceles triangle with a tip projecting downwards, whose tip projecting downwards (10) lies between two equal length limbs of the triangle and is sharpened and whose free triangle sides facing in the circumferential direction in each case form a sharp edge (11).
10. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to one of the preceding claims, characterised in that it is filled with a substance capable of being trickled or poured and from the lower side is sealingly closed with a laminate film (32).
11. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to one of the preceding claims, characterised in that its self-opener sleeve (3) on its inner side is coated with a soluble substance.
12. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to one of the claims 1 to 9, characterised in that on the lower side of its cap lid there is integrally formed a metering spout (42) which in its length is dimensioned such that with a screwed-on lid cap (1), it with its lower edge (44) downwardly projects beyond the flange-like projection (7) on the pour-out spout (2).
13. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to one of the preceding claims, characterised in that on the lower edge of the threaded cap (1) there is integrally formed a guarantee strip (25) via a number of fine material bridges (26) which is pushed over a bead which is circumferential on the pour-out spout (2) below its outer thread (6) and encloses the pour-out spout (2) on the lower side of the bead.
14. A self-opener closure for composite packagings as well as for container spouts or bottle spouts to be closed with film material, according to one of the preceding claims, characterised in that the outer circumferential side of the rotary cap (1) forms a knurled or grooved grip surface, a square, hexagon or octagon, or that in the upper side of the rotary cap there is formed at least one diametrical groove or a diametrically upwardly projecting web.

Images