EP1658225B1 - Pouring spout closure with a piercing cutter for composite packagings or containers sealed with film material - Google Patents

Abstract

A pouring closure includes a flange for welding onto a combipack or to the foil material of a container sealed with the foil material, along with an upwardly projecting circular rim thereon and a rotatable combined lid and pouring nozzle that can be clipped onto the upwardly projecting circular rim, which forms a piercing edge arrangement. This piercing edge arrangement includes a part of a cap lid, which can be opened from the lid surface around a swinging axis. Two piercing cutters are on the lower side of this part of the cap lid behind its swinging axis and near the edge of the cap rim and are able to be folded up beyond a level of the lower side of the flange and to pierce the combipack or the membrane liner running below the flange. Thereafter, the lid and pouring nozzle is rotated on the flange rim, so that the two piercing cutters cut-out a disc, of approximately 360°, from the combipack or the membrane liner after the folding upwards movement.

Description

This invention relates to a spout closure for composite packages as well as sealed with film material containers of all kinds, which includes a lancing device. In particular, it is intended to liquid packages in the form of such composite packages of film-coated paper in which, for example, milk, fruit juices, all sorts of drinks or general liquids are also packed from the non-food area. However, the closure can also be used for composite packages in which bulk goods such as sugar, semolina, rice or all kinds of chemicals and the like are stored or packaged. The 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 spout 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 on similar containers.

Such closures made of plastic are known in various designs. They form, when they are intended for a composite package, essentially a pourer edge or spout with radially projecting from its lower edge shoulder which forms a final flange at this edge or neck. In the case of a nozzle this is usually equipped with an external thread on which a threaded cap can be screwed as a closure. In the case of a bottle cap, the spout can be plugged or screwed onto a bottle mouth. Other pourer closures have a hinged on a film Schamier hinged lid. Such a spout closure is flanged onto the composite package by sealingly sealing it to the composite package with the underside of its overhanging edge, that is, the underside of its flange. The free passage at the lower end of the rim or nozzle is then closed by the paper and the sealing film of the composite package.

The film-reinforced paper which passes through below the welded nozzle or pourer closure or the film membrane running below the nozzle or closure must be cut open, torn open or pushed away in order to clear the passage and to empty the liquid or bulk material out of the container through the nozzle or closure. the pourer closure can be poured out or distributed. 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. Another No. 6,257,449. There is disclosed a pouring spout for composite packages or also closed with film material container according to the preamble of claim 1, which consists of a flange which is welded onto the package or on the film material of a container and forms an upwardly projecting edge. To open a lid is pivoted on the one hand, which is connected to the edge of the projection via a film hinge with the same. Simultaneously with the opening of the lid, a hinged on the opposite side of the edge lever is actuated by its front end, which extends beyond the same slightly protruding below the lid, is lifted upwards, whereby the rear end of the lever, in the interior of the The interior of the spout opening protrudes, is pivoted downwards and the packaging film is pinned and then pivoted downwards.

However, all of these conventional self-opening closures do not always work to full satisfaction. No slices are cut out of the paper or foil membrane cleanly, but rather, these sleeves or levers 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 way for the air flowing from the outside into the container when pouring or pouring out, or they may even protrude into the path of the outflowing liquid jet or the discharged goods. For larger packages with stronger foil-reinforced paper or cardboard, the opening is made even less reliable and clean. The slowly moving down and simultaneously rotating sleeve touches with its entire lower edge almost simultaneously to be cut film-reinforced paper web and pushes them all down and turns on her until a hole is more scraped or broken through rather than cut. One of the reasons why slicing is not correct is because, among other things, the foil to be cut avoids the pressure of the sleeve, which acts as a drill bit, so that the sleeve no longer acts on a flat paper foil, but on a downwardly curved foil , Next require the previous ones Solutions as a result of the design of the sleeves, which are also referred to as piercing, because they just pierced a piece of paper foil more than a circular disc clean cut, a strong 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 initially spread around the entire circumference only scratch and then have to overcome a large rotational resistance. They act in the uppermost layer of the paper thickness much like rip-off teeth, namely chipping, pushing and tearing rather than acting as actual cutting blades with sharp cutting edges.

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 the large rotational resistances occur from time to time even breaks the power transmission means, which should take over the transmission of torque from the threaded cap on the Durchstosserhülse, or provided Mitnehmemocken which engage in grooves on the Durchstosserhülse, jump out of these grooves. If this happens, the self-opener shutter will no longer work.

Another problem is that the torn-out or half-cut out foil disc from the Durchstosserhülse is turned down too little or the foil disc over the useful life of the shutter away too little folded downwards because the Durchstosserhülse is not securely fixed in the final position. All these problems should be solved by a proper self-opener closure.

The previously known solutions are furthermore of relatively large height. In the case of a nozzle this must accommodate a piercing sleeve, which must be moved down by a few millimeters to open the composite laminate, regardless of whether the sleeve is additionally rotated in addition or not. The force-transmitting means for depressing and possibly for the in-rotation displacement of the sleeve require a lot of space and a corresponding height, but this is detrimental to the stackability of the composite packages equipped therewith. In addition, the individual components are complicated in their construction. They are manufactured separately, namely as a nozzle, as a screw-on lid and as insertable into the nozzle Durchstosserhülse. These three parts must be assembled after spraying, which is time-consuming and large quantities, which is here, specially designed and expensive automatic assembly machines required.

It is therefore necessary to remedy these problems and to provide a pour-out closure with lancing device for composite packs or closed with foil material container, which allows a reliable cutting a laminate or foil in the clear closure passage, with clean cut edges to be achieved so that in the passage protruding shreds are avoided. For a variety of film materials and composites a targeted pre-weakening of the cutting points by punching or laser treatment should even be eliminated. This pourer closure should have a particularly low height, so that the composite packages equipped with it are better stackable. It should consist of a maximum of two parts and in a special version even be sprayable as a single part, so that a subsequent assembly of several separate parts is eliminated.

This object is achieved by a spout closure with lancing device for composite packs or containers sealed with film material, consisting of a flange for welding onto a composite package or on the film material of a sealed container, and an upwardly projecting, circular edge characterized by a rotatably clipped on this edge, combined lid and spout, which forms a lancing device.

Figur 1:

Den Ausgiesser-Verschluss mit halbgeöffneten Deckeln in einer perspektivischen Darstellung;

Figur 2:

Diesen Ausgiesser-Verschluss mit halbgeöffneten Deckeln in einer Ansicht von hinten her gesehen, in Richtung des in Figur 1 eingezeichneten Pfeiles B;

Figur 3:

Diesen Ausgiesser-Verschluss mit halbgeöffneten Deckeln in einer Schnittansicht längs der Linie A-A in Figur 2, von der in Figur 1 mit Pfeil D eingezeichneten Richtung her gesehen;

Figur 4:

Diesen Ausgiesser-Verschluss mit halbgeöffneten Deckeln in einer Seitenansicht von der mit Pfeil C in Figur 1 eingezeichneten Richtung her gesehen;

Figur 5:

Diesen Ausgiesser-Verschluss mit halbgeöffneten Deckeln von oben gesehen;

Figur 6:

Eine zweite Ausführungsvariante eines solchen Ausgiesser-Verschlusses, in geschlossenem Zustand von schräg oben her gesehen;

Figur 7:

Diese zweite Ausführungsvariante von hinten gesehen, in Richtung des Pfeiles B in Figur 6, und mit etwa um 45° aufgeschwenkten Deckelteilen;

Figur 8:

Diese zweite Ausführungsvariante in einer Schnittdarstellung längs der Linie A-A in Figur 7 und in Richtung des Pfeiles D in Figur 6 gesehen;

Figur 9:

Diese zweite Ausführungsvariante von der Seite her gesehen, in Richtung des Pfeiles C in Figur 6; mit vollständig aufgeklappten Deckelteilen;

Figur 10:

Diese zweite Ausführungsvariante in einer Schnittdarstellung längs der Linie B-B in Figur 9 gesehen, und darunter den vergrösserten Ausschnitt C dieser Figur;

Figur 11:

Diese zweite Ausführungsvariante von oben gesehen, mit ganz aufgeklappten Deckelteilen;

Figur 12:

Diese zweite Ausführungsvariante von unten gesehen.

Figur 13:

Eine dritte Variante des Ausgiesser-Verschlusses, bei welcher der hintere Deckelteil geschlossen bleibt, mit hochgeklapptem vorderen Deckelteil und von schräg hinten gesehen;

Figur 14:

Diese dritte Variante, bei welcher der hintere Deckelteil geschlossen bleibt, mit hochgeklapptem vorderen Deckelteil und von schräg vorne gesehen;

Figur 15:

Diese dritte Variante mit ihren beiden Spritzteilen, im Zustand vor der Montage;

Figur 16:

Diese dritte Variante mit dem hinteren Deckelteil aufgeklipst auf den Deckelring, sowie dem zugehörigen Unterteil des Verschlusses mit seinem Flansch;

Figur 17:

Diese dritte Variante des Ausgiesser-Verschlusses in geschlossenem Zustand von schräg unten her gesehen.

In the figures, advantageous embodiments of this pourer closure are shown in different views. Based on these figures, this spout closure and its lancing device will be described in detail below and the function of the closure and in particular the function of its lancing device will be explained and explained.
It shows:

FIG. 1:

The spout closure with half-opened lids in one perspective view;

FIG. 2:

This spout shutter with half-open lids seen in a view from the rear, in the direction of the arrow B shown in Figure 1;

FIG. 3:

This spout shutter with half-open lids in a sectional view taken along the line AA in Figure 2, seen from the direction indicated by arrow D in Figure 1;

FIG. 4:

This pourer closure with half-opened lids seen in a side view from the direction indicated by arrow C in Figure 1 direction;

FIG. 5:

This pourer closure with half-opened lids seen from above;

FIG. 6:

A second embodiment of such Ausgiesser closure, seen in the closed state obliquely from above;

FIG. 7:

This second embodiment seen from the rear, in the direction of arrow B in Figure 6, and pivoted with about 45 ° lid parts.

FIG. 8:

This second embodiment variant seen in a sectional view along the line AA in Figure 7 and in the direction of arrow D in Figure 6;

FIG. 9:

This second embodiment seen from the side, in the direction of arrow C in Figure 6; with fully opened lid parts;

FIG. 10:

This second embodiment is seen in a sectional view along the line BB in Figure 9, and below the enlarged section C of this figure;

FIG. 11:

This second embodiment seen from above, with completely unfolded lid parts;

FIG. 12:

This second embodiment seen from below.

FIG. 13:

A third variant of the spout closure, wherein the rear lid part remains closed, with the front lid part folded up and seen from obliquely behind;

FIG. 14:

This third variant, in which the rear lid part remains closed, with the front lid part folded up and seen from obliquely from the front;

FIG. 15:

This third variant with its two molded parts, in the state before assembly;

FIG. 16:

This third variant with the rear cover part clipped on the cover ring, and the associated lower part of the closure with its flange;

FIG. 17:

This third variant of the spout shutter in the closed state seen from below obliquely.

FIG. 1 shows the pouring spout made of injection-molded plastic with half-opened lids in a perspective view. It consists of a flange 1, which here has a circular outer edge 22 over most of its circumference, but this edge extends on two opposite sides along each secant 23 with respect to this circle. On this flange 1 is a vertically upwardly integrally formed, in plan view circular edge 2, of which only a part of its inside is visible. On this edge 2, a combined lid and spout 3 is turned up, the consists of a cover cap 5 and a downwardly projecting edge 6, wherein snap closure means ensure that it can be snapped onto the upwardly projecting edge 2 on the flange 1, so that it is held thereon to train resilient. However, the clipped in this way combined lid and pourer 3 is mounted on this edge 2 along the same slidably rotatable. On its front side, a pouring lip 15 with a sharp tear-off edge is formed on the lid and pouring spout 3. From this cover 3, a part 7 of the cover cap 5 is pivotable upwards about a film hinge 11 extending along a secant via this cover cap 5. Adjacent to this film hinge 11, a web 10 extends over the cover cap 5 and the other edge of the web 10 is formed by a further film hinge 12 about which a second part 8 of the lid 3 in the opposite sense to part 7 is pivotally upwards. On the pivotable part 7, a vertically downwardly projecting wall 24 is formed in the vicinity of the film hinge 11. This wall 24 is supported relative to the part 7 by means of two wall struts 25,26 here. At the back of this wall 24 and therefore not visible here at least one lancing cutter is formed, wherein the cutting edge of the blade is directed at folded-down part 7 downwards. Preferably, however, two lancing cutters are provided, one in the region of each end of the film hinge 11 on the back of the wall 24. In terms of its geometry, each of these lancing cutters is arranged behind the film hinge 11 on the part 7 and formed so that it by pivoting of the part 7 is swung down and its blade acts with its cutting edge downwards. This will be clear from the other figures and the description. This closure is welded to the underside of its flange 1 on a composite package or the sealing film of a container sealed with it. The hinged front part 7 forms at the same time a lancing device 4, while the rear hinged part 8 of the cover cap 5 serves on the one hand as an air inlet for the closure and equipped container and on the other hand to the cutting open the composite package or sealing film, as will be described in detail.

FIG. 2 shows the pourer closure with half-opened lids 7, 8 in a view from the rear, ie in the direction of that shown in FIG. 1 B. This pourer closure is equipped with two lancing cutters 9,20, which protrude here at half-open lid part 7 little over the bottom of the flange 1 down. On the underside of the half unfolded rear part 8 of the lid cap can be seen a line 27 which corresponds to a step 27 which is formed there. On the inner side of the step 27, the hinged part 8 is slightly thicker than on the outer side, whereas the upper side of the part 8 is smooth, as can be seen in FIG. The step 27 can be swiveled to fit in a matching step at the upper edge of the flange 1 projecting upwards on the projection 2. The two steps are shaped so that they click into one another when folding the part 8. The area outside the step 27 on part 8 then serves as a grip tab, on which the part 8 can be grasped and swung up about the hinge 12. From the front hinged part 7 of the lid cap 5 can be seen here only the front part of its smooth top. The two piercers 9 and 20 act when opening or pivoting of the part 7 first as engraver, because they are pivoted down by this unfolding movement and thereby pierce the along the underside of the flange extending composite packing or sealing film.

FIG. 3 shows the pourer closure with half-opened lid parts 7, 8 in a sectional view along the line AA in FIG. 2, seen from the direction indicated by arrow D in FIG. The combined lid and pourer 3 is slipped with its downwardly projecting edge 6 and the groove 14 on its inside over the upwardly projecting edge 2 on the flange 1 and because this edge 2 has a bead outside 13, the groove 14 clicks over the latching Bead 13, so that the lid and pourer 3 is tractionally held on the edge 2 of the flange 1. It can be seen here further, as the piercing cutter 9 is formed projecting towards the rear wall 24 and which form it has. In its end, it forms a cutting blade 19 with downward cutting edge. This lancing cutter 9 is not shown here in section, because it is located entirely outside, at the local end of the film hinge 11. The location of a second pierce cutter 20, which would not actually be visible in the sectional view shown here, because it is above the drawing sheet level is, for ease of understanding nevertheless indicated by dashed lines. In contrast to the lancing cutter 9, this second lancing cutter 20 has, in addition to the cutting blade 21 with a cutting edge pointing forwards, a cutting blade 30 with a cutting edge directed backwards or upwards. Both piercers 9 and 20 each run out into a tip 28,29. Now, if the part 7 as shown with the curved arrow drawn around the film hinge 11 in the cover cap 5 up or pivoted, so the lancing cutter 9 or in the case of two lancing cutters and the opposite lancing cutter 20 is pivoted down. Because each lancing cutter 9,20 is much shorter than the part 7, it acts as a load, while the hinged part 7 acts as a power arm. Therefore, can be exercised by the unfolding of the part 7, a considerable compressive force with the tip 28 of the piercing cutter 9 or in the case of two piercers with their two tips 28,29 on the continuous below the flange 1 composite package or sealing film, so that this is reliably pierced. The reaction force, which acts on the film hinge 11 upwards, is captured by the cover cap 5 by their edge 6 is pulled on all sides even stronger against the edge 2 on the flange 1 and makes the clawing groove 14 and bead 13 even more attractive.

Upon further pivoting or unfolding the cutting edge of the cutting blade 19 comes into action and continues cutting from the pierced hole. This results in a straight cut near the inner edge of the upwardly projecting projection 2 on the flange 1 and approximately along this inner edge. Likewise, in the presence of a second pierce cutter 20, the forward cutting edge of its cutting blade 21 cuts the composite packing or sealing foil at the other end of the film hinge 11 in the same direction. When the two parts 7 and 8 are completely unfolded and touch, they are clamped between the thumb and forefinger of the right hand and afterwards you turn this combined lid and spout 3 seen from above in the counterclockwise direction on the projection 2 on the flange 1. Das is because the whole lid and pourer 3 has a downwardly projecting edge 6, which is provided on its inside with a groove 14, with which the lid 3 via a form-fitting to this groove 14 shaped bead 13th is slipped on the outside of the upwardly projecting edge on the flange 1. When turning the lid and pourer 3, the cutting cutter 9 shown here acts as a knife. Its blade 19 cuts the composite package along the inner edge of the projection 2. The same does the lancing cutter 20 at the opposite end of the film hinge 11, only this cuts not with the forward cutting edge of its blade 21, but with the second, rearwardly directed cutting edge 30. While the visible here cutting cutter 9 so for cutting so in the picture moved to the left, the opposite lancing cutter 20 moves in the image initially in the opposite direction, so would turn to the right. Of course, both rotate in the same direction of rotation, seen from above in a counterclockwise direction. The blades 19 and 21 of the two lancing cutters 9, 20 are arranged geometrically differently, namely as follows: The cutting edge of the blade 19 is at vertical swung part 7 with respect to their horizontal distance from the film hinge 11 a few millimeters, for example about 5mm further from this removed as the rearwardly directed cutting edge 30 of the blade 21 of the opposite lancing cutter 20. This has the effect that upon rotation of the lid and pourer 3 by 180 °, the blade 19 of the here visible piercing cutter 9 the beginning of the cut produced by the opposite lancing cutter 20 overlapped by a few mm. By contrast, the second pierce cutter 20 does not reach the beginning of the cut of the first piercing cutter 9 with its cut except for this distance difference, thus leaving a small composite laminate or sealing foil bridge standing there. Due to the shape of the piercing cutter 20 but the almost completely cut composite laminate or sealing foil disc at the end of the 180 ° rotation is folded down. In the case of a single pierce cutter, that is, if only the piercing cutter 9 were present, the lid and spout 3 is rotated by almost or completely 360 °. During this rotation, the individual piercing cutter 9 cuts with the cutting edge of its cutting blade 19 along the edge 2 on the flange 1 a composite laminate or foil disc out, which he then folds down. The packaging or container contents are then poured over the pouring lip 15 on the lid and pourer 3.

The rear part 8 on the lid, which is also swung up out of the lid cap, leaves open an opening for the inflow of air into the packaging or the container, so that the outflow can not begin to bubble for lack of inflowing air. To reclosure, the two parts are 7,8 simply folded back down and fit by means of their stepped edges 16,27, the form-fitting and snap action in the correspondingly shaped upper edge of the projection on the flange 1, they can be clicked on this sealing. Both hinged parts 7,8 form at its front end a region which projects slightly beyond the projection on the flange 1. As a result, a gripping tab 18 is ever formed, on which they can be grasped and swung up.

FIG. 4 shows the pourer closure with half-opened lids in a side view from the direction indicated by arrow C in FIG. Seen from this side you can see the first piercer 9 and its cutting blade 19 seen from the outside. Visible is also the wall brace 25, which serves to stiffen and reinforce the wall 24, which is indeed formed vertically standing on the underside of the part 7. The pouring lip 15 protrudes beyond the edge 6 and has a sharp tear-off edge, so that pouring can be interrupted without subsequent dropping and resumed.

Finally, in FIG. 5, the spout closure with half-opened parts 7 and 8 is shown from above. It can be seen here the extending between the film hinge 11 and 12 web 10, which connects the two sides of the cover cap 5 and the two there protruding down edge portions 6. Schematically represented as arrows, the two piercers 9,20 and their blades 19,21 indicated, the arrowheads mark the position of the cutting edges at fully unfolded part 7. It can be seen that the forward cutting edge of the blade 19 is farther from the film hinge 11 than the rearwardly directed cutting edge 30 of the blade 21 of the second piercer 20. Upon a 180 ° turn of the lid and spout 3, therefore, a short piece of laminate will be formed or foil left to which then the otherwise clean cut out disc can be folded down.

FIG. 6 shows a second embodiment of such a pouring spout, and FIG. 7 shows the same viewed from the rear, in the direction of the arrow B in FIG. 6, and with lid parts 7, 8 pivoted up by approximately 45 °. In FIG. 7, the two lancing cutters 9, 20 are again visible, of which the one shown on the left has on both sides a cutting edge, that is to say one directed towards the front and one towards the rear. FIG. 8 shows the difference to the first described variant according to FIGS. 1 to 5. Here, the piercing cutter 9 - one sees the closure here with reference to FIG. 7 from the left - is formed by a rib 31 which is located at the underside of the Cover 7 is formed and extends back beyond the film hinge 11 addition. The cutting edge 19 moves when turning the lid seen from above in the counterclockwise direction in the figure, first to the left.

FIG. 9 shows this second embodiment, seen from the side, as seen in the direction of the arrow C in FIG. 6, with the cover parts 7, 8 completely unfolded. In this state, the two lancing cutters 9, 20 are slightly offset with respect to the circumference of the lid. Therefore, in the sectional drawing which shows the shutter in a section along the line BB in Figure 9, only the lancing cutter 9 and this only about half, while seen by the other lancing cutter due to its displacement to the lancing cutter 9 only a small approach is. Through the enlarged detail shown E is shown how the lid is held with its edge 6 on the projection 2 on the flange 1. On the inside a circular groove 14 is present, in which a bead 13 fits on the outside of the projection 2. A downwardly projecting additional collar 34 is integrally formed on the underside of the lid, and this collar 34 has a bump 33 here. As can be seen from the figure 12, which shows the closure in a view from below, two such bumps 33 are formed on opposite sides of the collar 34. They prevent the lid from jumping when opening the lid part 7 and piercing the sealing foil from the projection 2.

FIG. 13 shows a third variant of the spout closure. As a special feature remains in this variant, the rear lid part in the use state, ie with the shutter open, closed. The cover 3 here consists of the actual cover cap 32 and an associated cover ring 33, which are both connected to each other via a belt 34 so that they can be injected in one piece in one operation. The rear cover part has a hole 35 which, in the opened state of the closure, that is to say with the front cover part 7 opened, is open and serves as an air inlet. FIG. 14 shows this third variant of the closure with the front cover part 7 folded upwards and seen obliquely from the front. On the underside of the hinged front cover part 7, a curved, generally U-shaped rib 36 is formed, wherein the ends of the legs of the U formed form the two lancing cutters 9,20. In the middle, within this U-shaped rib 36, a further rib 37 is formed, which carries at its rear or here lower end a bolt-like plug 38. When the lid part 7 is closed, this stopper 38 is swung open and penetrates from below sealingly into the hole 35 in the rear lid part. FIG. 15 shows this third variant of the closure with its two molded parts, in the state before assembly. The entire closure thus consists of two single molded parts, namely from the lower part with flange 1 and the lid 3 consisting of a cover ring 33 and a cover cap 34 integrally formed thereon via the connecting band. At the bottom of the rear part of the lid cap latching elements 39 are formed, which fit into corresponding latching holes 40 in the cover ring 33 and there sealingly engage when the lid cap is fitted onto the cover ring 33. On the outer sides of the lancing cutters 9, 20 each have an axle bolt 41. At the bottom of the cover ring 33 matching axle bearings 42 are formed and on the closure lower part bulges 43 for receiving the axle bolts 41 are present.

FIG. 16 shows the cover 3 in the assembled state and below the closure lower part. When attaching the lid cap on the cover ring 33, the two piercers 9,20 are slightly pressed against each other and guided by the cover ring 33, after which they come to rest in the axle bearings 42 at the bottom of the cover ring 33. Then the lid ring clipped onto the closure lower part, so that the bead 13 engages on the outside of the projection on the lower part in the circular groove 14 on the inside of the cover ring 33.

FIG. 17 shows the completely assembled pouring spout according to this third variant, viewed obliquely from below. By the pivoting down of the front cover part 7 of the bolt-like plug 38 was pivoted from below into the hole 35 in the rear cover part and closes this hole 35 sealing. If now the front cover part 7 is swung open, the two lancing cutters 9, 9 pivot downwards and puncture the foil on which the closure is welded or glued to the underside of the flange 1. Thereafter, the lid 3 can be rotated together with its cover ring 33, so that the lancing cutters 9,20 now act as a knife and cut the sealing film along the lid ring circumference.

Claims (10)

1. Pouring closure with piercing edge arrangement for combipacks or containers sealed with foil material consisting of a flange (1) for the welding on to a combipack or to the foil material of a container sealed with that and a circular rim (2) projecting upwards thereon, characterized in that a twistable combined lid (3) and pouring nozzle that can be clipped on to this rim (2), which forms a piercing edge arrangement (4).
2. Pouring out closure with piercing edge arrangement according to claim 1 characterised by the fact that the combined lid (3) and pouring nozzle that can be clipped on the rim (2) forms a lid cap (5), whose rim (6) projecting downwards can be clipped on the circular rim (2) projecting upwards on the flange (1) rotatable on the same, and that the piercing edge arrangement (4) is realised, in which minimum one part (7) of the cap lid (5) can be open from the lid surface around a swinging axis whereby minimum one piercing cutter (9) formed on the lower side of the part (7) behind the swinging axis near the edge of the cap rim (6), with piercing edge blade (19) and cutting edge projecting downward can be folding up beyond the level of the bottom side of the flange (1) and can be moved in this swung position by rotating the lid cap (5) on the rim (2) along the same.
3. Pouring out closure with piercing edge arrangement according to one of the previous claims characterised by the fact that the combined lid (3) and pouring nozzle that can be clipped on the rim (2) forms a lid cap (5), whose rim (6) projecting downwards can be clipped on the circular rim (2) projecting upwards on the flange (1) rotatable on the same, and that the piercing edge arrangement (4) is realised, in which minimum one part (7) of the cap lid (5) can be open from the lid surface around a swinging axis whereby two piercing cutters (9,20) formed on the lower side of the part (7) behind its swinging axis near the edge of the cap rim (6) with piercing edge blades (19,21) can be folding up beyond the level of the bottom side of the flange (1) and can be moved in this swung position by rotating the lid cap (5) on the rim (3) along the same.
4. Pouring out closure with piercing edge arrangement according to claim 3 characterised by the fact that the two piercing cutters (9,20) with cutting blades (19,21) formed on the lower side of the part (7) that can be open are so formed on the part (7) that, for part (7) open vertical to the lid upper side, the cutting edge of that cutting blade (19) of the piercing cutter (9), which develops a cutting action at first in the direction to the front side of the closure for a rotation of the lid cap (5) in the counter clockwise direction, lies further removed from the swinging axis than the cutting edge of the cutting blade (21) directed backwards of the piercing cutter (20) arranged opposite, which develops a cutting action at first in the direction to the rear side of the closure.
5. Pouring out closure with piercing edge arrangement according to one of the previous claims characterised by the fact that, behind the part (7) of the cap lid (5) with the piercing edge arrangement (4) that can be open, a second part (8) of the cap lid (5) can be open in contra-rotating swinging direction around a parallel swinging axis (12) displaced from the swinging axis of the first part (7).
6. Pouring out closure with piercing edge arrangement according to one of the claims 1 to 5 characterised by the fact that the lid (3) consists of a lid cap and a single-piece lid ring (33) hanging on it via a band 34, on which it can be fixed by means of engaging elements (39,40), in which the lid rear part has a vent hole (35) and a plug (38) is formed on the front lid lower side, which enters into the vent hole airtight during the folding up of the front lid part (7) and that the piercing cutters (9,20) have axle pins (41) on their outer sides, which fit in the axle bearing (42) on the bottom rim of the lid ring (33) and that the lid ring (33) can be fixed on the projection (2) on the closure lower part.
7. Pouring out closure with piercing edge arrangement according to claim 5 characterised by the fact that the two parts (7,8) of the cap lid (5) lying opposite can be open from the lid surface against each other whereby the cap lid (5) forms a strap (10) along a secant on whose two edges the two parts (7,8) that can be open are formed that can be swung via an internal hinges (11,12), in which each piercing cutter (9,20) formed on the bottom side of the one part (7) near the edge of the cap rim (6) can be swung beyond the level of the bottom side of the flange (1) and can be moved in this swung position by rotating the lid cap (5) on the rim (2) along the same.
8. Pouring out closure with piercing edge arrangement according to one of the previous claims characterised by the fact that the combined lid and pouring nozzle (3) that can be clipped on the rim (2) forms a lid cap (5), whose downwards projecting rim (6) can be clipped on to the upwards projecting circular rim (2) on the flange (1) rotatable on the same, in which the circular rim (2) has a bulge (13) along its outer side running around its circumference and the lid cap (5) has a groove (14) matching to this bulge (13) on the inner side of its downwards projecting rim (6).
9. Pouring out closure with piercing edge arrangement according to one of the previous claims characterised by the fact that the combined lid and pouring nozzle (3) that can be clipped on to the rim (2) forms a pouring lip (15) sticking out from it radially on that side from which the part (7) of the cap lid containing the piercing edge arrangement (4) can be open.
10. Pouring out closure with piercing edge arrangement according to one of the previous claims characterised by the fact that the combined lid and pouring nozzle (3) that can be clipped on to the rim (2) forms a lid cap (5), whose downwards projecting rim (6) can be clipped on to the upwards projecting circular rim (2) on the flange (1) and rotatable on the same, in which minimum one part (7,8) of the cap lid (5) can be open from the lid surface, and that outer lower rim of this part (7,8) forms a step (16), which fits in a similar step (27) on the upper rim of the upwards projecting rim (2) on the flange (1), and whereby a gripping groove (18) is formed on the front side of the parts (7,8) that can be open, which overlaps the rim (2) on its outer side projecting downwards in the folding up condition.

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