EP0407746B1 - Parallel-piped gable-top container having a spout on the flat roof - Google Patents

Abstract

A cuboid package suitable as a container for a liquid or a food comprises a body formed from a blank of packaging material having a plurality of longitudinal, transverse, and oblique groove lines thereon, said body being shaped into a base, four side walls, a flat top, and gable pocket adjoining one of the side walls and extending under the flat top so that the gable pocket lies within the cuboid outer contour of the body. The gable pocket comprises an inclined surface formed from a re-entrant fold of the blank and lateral pocket surfaces. A pouring spout or an adapter which receives a pouring spount is disposed on the inclined surface of the gable pocket.

Description

The invention relates to a cuboid gable packing with a flat roof provided with a pouring spout or an adapter for a pouring spout, made of a folded packing material formed by a plastic multilayer composite on a carrier, in particular as a liquid and / or food pack, in the form of a blank or hose Packing material longitudinal, transverse and oblique groove lines are provided for the carcass, floor and gable edges, the flat roof in the gable area being closed by a web seam and having a folded pocket formed from triangular folding tab areas at one corner area.

In the area of liquid and food packaging, single-use packs made of folded cardboard-plastic multilayer composite have prevailed over the past few years, which allow optimal use of space due to their cuboid shape.

• 1. Quaderförmige Flachdachpackungen mit praktisch sechsflächigem Korpus und rechtwinklig und parallel zueinanderstehenden Korpuswänden. Solche Packungen, die durch Faltung aus rechtwinkligen Zuschnitten oder Schlauchabschnitten abfallfrei gefertigt werden können, gewährleisten neben einem ausgezeichneten Flächen-/Inhaltsverhältnis eine optimale Palettengängigkeit und wegen des Flachdaches auch eine optimale Stapelbarkeit (DE-PS 34 39 102).
• 2. Quaderförmige Giebelpackungen mit einem fünfflächigen Korpus mit rechtwinklig zueinanderstehenden Korpuswänden und einem ausgefalteten Giebel mit vier Giebelschrägen und einer senkrecht stehenden Stegnaht. Solche Packungen sind durchweg nicht abfallfrei zu fertigen und wegen der senkrecht stehenden Stegnähte sind sie auch nur bedingt stapelbar (EP-0 286 313).
• 3. Quaderförmige Giebelpackungen mit einem fünfflächigen Korpus mit rechtwinklig zueinanderstehenden Korpuswänden und einem angefalteten Giebel mit vier Giebel schrägen und einem Flachdach. Solche Packungen sind generell nicht abfallfrei zu fertigen, gewährleisten aber immerhin eine gute Stapelbarkeit (GB-PS 973,801).

Basically, these cuboid packs can be divided into three groups:

• 1. Cuboid flat roof packs with a practically six-sided body and rectangular and parallel body walls. Such packings, which can be made waste-free by folding them from rectangular blanks or tube sections, guarantee not only an excellent area / content ratio, but also optimal pallet accessibility and, due to the flat roof, optimal stackability (DE-PS 34 39 102).
• 2. Rectangular gable packs with a five-area body with body walls at right angles to each other and a folded gable with four gable slopes and a vertical bridge seam. Such packs cannot be produced without waste and because of the vertical web seams they can only be stacked to a limited extent (EP-0 286 313).
• 3. Cuboid-shaped gable packs with a five-area body with perpendicular body walls and a folded gable with four sloping gables and a flat roof. Such packs are generally not to be made waste-free, but nevertheless ensure good stackability (GB-PS 973.801).

With the expansion of the market and the use of new product groups, it is desirable to equip such packs with bottle-like, resealable spout openings or pourers, in addition to the usual opening aids such as perforation and tear-open tabs, such as those in a variety of forms, for example in connection with cans and containers are on the market.

Is this possible with gable packs with sloping gable surfaces because of the available space within the gable surfaces up to the height of the web seam without any problems or without further restriction of the already limited stackability or without additional stacking space (DE 30 39 299 A1; DE 38 42 412 A1, Fig. 28), on the other hand, in the case of flat roof packs, any application inevitably leads to protrusion beyond the body size and to considerable stacking problems (DE 38 32 412 A1, Fig. 27).

Although this protrusion can be kept within limits (see EP 0 018 325 and EP 0 081 011), it nevertheless poses problems during stacking and requires more or less expensive precautions. In addition, because of the short beam guidance, a targeted inclusion or pouring out is made more difficult.

The invention has for its object to provide a cuboid gable pack of the type mentioned, in which the spout or the adapter for a spout is housed on the pack so that it does not affect the handling of the pack, especially the stackability and protected from damage is.

This object is achieved according to the invention in that in the corner area opposite the folded pocket between the flat roof and the adjoining body wall an inclined surface formed by folding is arranged, which lies on the inside of the adjacent body walls with pocket surfaces lying within the cuboid contour of the gable package forms an open gable pocket in which the spout or adapter arranged on the inclined surface is accommodated.

In the gable pack according to the invention, the spout or the adapter is not only accommodated within the contour of the cuboid gable pack, so that such packs can be assembled and stacked without gaps, but also from the side pocket surfaces and body walls, which form a folding pocket, and through protected the protruding roof area. Despite this protection, the spout or adapter remains easily accessible because the inclined surface is quite large, namely the width of the adjoining body wall. The requirement for an aseptic filling in the case of packaging material formed from a plastic multilayer composite material on a carrier material that no open cut edges may be present towards the filling material is met due to the special folding.

Other types of rectangular liquid packs with a flat roof and an inclined surface for attaching a spout are known (US Pat. No. 4,214,675), but no protection is provided for the spouts in these packs. The known package consists of a rectangular container made of simple cardboard material with a liquid-tight loose inner bag inserted therein. The problem of the non-open cut edges to the filling material, as in a cuboid gable pack of the type according to the invention, does not exist here.

In the cuboid gable pack according to the invention, the size of the folding or gable pockets which laterally delimit the space for the pouring spout is variable and is limited by the cross section of the pack, the pack height and the folding geometry of the gable fold. The usable exposed inclined surface in the gable area ranges from 1/2 x narrow cabinet side in minimum to the cabinet width minus 1/2 x narrow cabinet side in maximum, while, based on the Body narrow side, the usable exposed inclined surface with decreasing angle α is getting bigger with a practical angle α of 90 ° - 30 °.

90 ° is, for example, suitable for an adapter ring for receiving external pourers with a simple way of attaching opening aids due to the overlap-free and single-layer composite, such as over punching and foil covers.

At 45 °, for example, for spouts with an optimal diameter and the largest possible nozzle length.

The location of the inclined surface, where the spout or an adapter ring for a spout is attached, can be designed and combined differently to meet different requirements. Depending on the contents, it may be required that there is edge protection on the spout both when the package is unopened and open. However, no edge protection is required at all for various filling goods. In order to be able to meet these different requirements, it is provided according to further embodiments of the invention that the inclined surface is provided with a punch. Provided that the punching is only on the outside of the inclined surface, with the spout sealed on the outside, there is complete edge protection with the packaging unopened. If, on the other hand, the punched opening is opened, this edge protection is lost.

If edge protection is not required, the sloping surface can be provided with a punched-out opening for receiving the spout. But even with a punched-out opening, edge protection can be achieved with an unopened package if the edge of the punched-out opening at least from the inside toward the inside of the package Plastic layer of the plastic multilayer composite is covered. The edge is preferably covered by both the inside and the outside plastic layer. A cover on both sides also provides edge protection when the package is open. The inside plastic layer covering the edge of the punched out or the inside and outside plastic layer preferably cover the punched-out opening. In this case, as with the punched opening, the spout can only be attached to the outside on the inclined surface. To open the pack, the plastic layer or the plastic layers must be pierced.

Edge protection when the opening is punched out, not only when the package is unopened, but also when the package is open, can be achieved with a spout which is sealed on the inside on the inclined surface with a collar. The spout can preferably be provided with a double collar, which is sealed or sprayed on the inside and outside of the inclined surface.

Deviating from the production steps customary for rectangular packs, the gable shape and sealing are carried out on a mandrel in the case of the pack according to the invention, and the gable-closed pack is filled over the bottom with a closing web seam closure and triangular folding flaps folded onto the bottom. The all-round edge protection interrupted by the snap fold can be produced in a simple manner by means of a corresponding punching in the cardboard carrier material with subsequent overcoating in the extruder, this punching out and the overcoating preferably taking place together with the punching out of the opening for the spout.

The different steps in making the Packaging, including how it is filled, depends in part on the type of opening and spout chosen. When the opening for the spout or adapter is punched or punched out from the outside and covered by the plastic layer on the inside, the packaging can be filled both before and after the spout or adapter has been attached. In any case, it is ensured that there is edge protection when the pack is closed. For manufacturing reasons, it is easiest if the spout or adapter is attached to the packaging filled over the bottom after the bottom has been closed.

If edge protection is required for a punched-out opening, it is necessary to seal the spout with a collar on the inside of the inclined surface before filling the packaging. There are two ways of sealing the spout either before the inclined surface is folded in or after the gable is closed.

Preferred embodiments of the invention are shown in the drawing and are described in more detail below.

• Fig. 1: eine bekannte Giebelpackung mit sechsflächigem Korpus in perspektivischer Darstellung,
• Fig. 2: eine Bodenansicht einer oben offenen Giebelpackung nach Fig. 1,
• Fig. 3: einen ebenen Zuschnitt mit Nutlinien und Einschnitten zur Fertigung einer Giebelpackung nach der Erfindung mit siebenflächigem Korpus und Giebeltasche im oberen Eckbereich,
• Fig. 4: eine aus einem Zuschnitt nach Fig. 3 gefertigte Giebelpackung, mit einem Adapterring in der Giebeltasche,
• Fig. 5: eine Giebelansicht einer am Boden offenen Giebelpackung nach Fig. 4,
• Fig. 6: eine Draufsicht auf den Boden der Giebelpackung nach Fig. 4,
• Fig. 7: einen Querschnitt durch die Giebelpackung nach Fig. 4, ausgestattet mit einem in die Giebeltasche applizierten, wiederverschließbaren Ausgießer,
• Fig. 8: eine Ansicht der Giebelpackung nach Fig. 4 von der Schmalseite, ausgestattet mit einem in der Giebeltasche applizierten Fremdausgießer,
• Fig. 9: einen Querschnitt durch die Giebeltasche nach Fig. 8,
• Fig. 10: einen Querschnitt durch die Giebeltasche wie in Fig. 9, jedoch mit einem gebrauchsfertig eingesetzten Fremdausgießer,
• Fig. 11: eine Giebelansicht einer am Boden offenen Packung wie in Fig. 5, jedoch mit einer minimal nutzbaren Schrägfläche im Giebelbereich von 1/2 x Schmalseite,
• Fig. 12: eine Giebelansicht einer am Boden offenen Packung wie in Fig. 5, jedoch mit einer maximal nutzbaren Schrägfläche im Giebelbereich von Breitseite minus 1/2 x Schmalseite,
• Fig. 13 - Fig. 15 eine an- oder ausgestanzte Öffnung für einen Ausgießer oder Adapter für einen Ausgießer an der Schrägfläche im Giebelbereich in verschiedenen Ausführungen,
• Fig. 16 - Fig. 19: einen an der Öffnung in der Schrägfläche aufgesiegelten Ausgießer im Querschnitt in verschiedenen Ausführungen und
• Fig. 20 - Fig. 22: die zum Aufformen, Füllen, Verschließen und Anbringen eines Ausgießers beziehungsweise Adapters für einen Ausgießer einer Giebelpackung erforderlichen Verfahrensschritte in verschiedener Reihenfolge in schematischer Darstellung.

Show it:

• 1: a known gable pack with a six-surface body in a perspective view,
• 2: a bottom view of an open gable package according to FIG. 1,
• Fig. 3: a flat blank with groove lines and incisions for manufacturing a gable package according to the invention with a seven-surface body and gable pocket in the upper corner area,
• 4: a gable pack made from a blank according to FIG. 3, with an adapter ring in the gable pocket,
• 5: a gable view of a gable package according to FIG. 4 open at the bottom,
• 6: a top view of the bottom of the gable pack according to FIG. 4,
• 7: a cross section through the gable pack according to FIG. 4, equipped with a reclosable spout applied in the gable pocket,
• 8: a view of the gable pack according to FIG. 4 from the narrow side, equipped with an external spout applied in the gable pocket,
• 9: a cross section through the gable pocket according to FIG. 8,
• 10: a cross section through the gable pocket as in FIG. 9, but with a third-party spout ready for use,
• 11: a gable view of a package open at the bottom as in FIG. 5, but with a minimally usable inclined surface in the gable area of 1/2 × narrow side,
• Fig. 12: a gable view of a package open at the bottom as in Fig. 5, but with a maximum usable sloping surface in the gable area from broadside minus 1/2 x narrow side,
• 13 - FIG. 15 a punched or punched opening for a spout or adapter for a spout on the inclined surface in the gable area in various designs,
• Fig. 16-19: a spout sealed at the opening in the inclined surface in cross-section in various designs and
• Fig. 20 - Fig. 22: the process steps required for molding, filling, closing and attaching a spout or adapter for a spout of a gable package in a different order in a schematic representation.

FIG. 1 shows a known embodiment of a cuboid gable package 1 made of a plastic multilayer composite on a carrier material with a hexagonal body. The body has a longitudinal jacket seam 2 and a gable 3 designed as a flat roof, which is closed by a web seam 4 to form two folding flaps 5 lying double at the end portions of the web seam. A folding flap 5 is folded outwards around a gable edge 6 onto the respective side wall. The packing material has in the usual way longitudinal and transverse or inclined groove lines for the carcass and floor or gable edges.

Figure 2 shows the preferred in the package of Figure 1 Floor version 7 in a view through the gable opening. Triangular folding flaps 5 on the bottom are folded inwards by a respective lower gable edge 6 and sealed together with the covered web and floor areas in an overlap fold to the floor.

Figure 3 shows a flat blank 8 with all the features for producing a gable package according to the invention. The area which is responsible for the folding out of a gable projection or an open gable pocket 9, which is explained in more detail below, and which differs from that for a gable packing according to FIG. 1, is emphasized from the otherwise identical cut by double dashes 10.

The rectangular and right-angled blank 8 consists of a middle part, the body region 11, an upper part, the gable region 12 and a lower part, the bottom region 13.

The carcase area 11 is delimited by partially slightly folding horizontal carcase groove lines 14, 15, 16, 17 and by vertical carcase groove lines 18, 19, 20, 21 that extend in alignment over the entire cut height.

The carcase groove lines 14, 15 and 16, 17 thereby delimit the narrow body sides 22, 23, while the broad body sides 24, 25/125 also co-operate with the interplay of the carcase groove lines 19, 20, 26, 27 and 18, 21, 28/128, 29/129 Groove lines 30, 31 of the gable pocket 9 are limited.

The gable area 12 has gable areas 32, 33/133 and triangular folding tab areas 34, 35, 36, an inclined area area (as the seventh area) 37 and pocket areas 38, 39, a tab area 40 and one Web seam area 87 on.

In the upper part of the gable area 12, in the area not included in the fold formed by folding, run parallel to an upper cutting edge 85 and mirror-image accordingly in the lower part of the floor area and over the entire floor area parallel to a lower cutting edge 86 at a relatively small distance. 42.

These web seam base lines run simultaneously through intersection points 43, 44, 45 of oblique groove lines 52, 53, 54, 55 delimiting the upper and lower triangular folding flap regions 34, 35, 36, 46, 47, 48. These groove lines serve for folding and shaping the gable area, which is not included in the fold formed by folding, into a gable, as described in FIG. 2 for the packing bottom and in the bottom area to form a packing bottom 7 according to FIG.

The folding which is formed by folding in to form the seventh surface and the gable pocket 38, 39 which at least partially covers it takes place over the area highlighted in the blank by double dashes 10.

The seventh surface (inclined surface 37) is bounded once by the body groove lines 16, 20, 21 and by a limiting groove line 56 running parallel to the cutting edge 85, while the pocket surfaces 38, 39 by the vertical body groove lines 20, 21 and the groove lines 30, 31 and Cutting lines 57, 58 and the insert tab 40 to be sealed are limited by the limiting groove line 56 and the adjacent vertical body groove lines 20, 21. The angle of inclination of the groove lines 30, 31 to the vertical body groove lines 20, 21 is half as large as the angle of inclination α of the inclined surface 37 to the narrow side 23.

In order to ensure tension-free unfolding, the angle γ between the groove lines 30, 31 and auxiliary groove lines 62, 63 is the same as the angle δ between the groove lines 30, 31 and the horizontal body groove lines 27, 29, and the angle ρ between the vertical body groove lines 20,21 and other auxiliary groove lines 66,67 is half the angle π between the vertical body groove lines 20,21 and the auxiliary groove lines 62,63.

To simplify the folding formed by folding in and to better center the folding, the groove lines 30, 31 of the gable pocket 9 beginning at intersection points 69, 70 of the horizontal body groove line 16 with the vertical body groove lines 20, 21 end at intersection points 71, 72 with the web seam base line 41 go into the cutting lines 57, 58 at this point, which are preferably at right angles to the upper cutting edge 85, the incision in the area of the web seam to be folded over by 180 ° eliminating the flipping of this corner of the pocket surface and thus warping of the web seam.

If, due to the contents or the type of packaging, all-round edge protection is required, which can be achieved in a simple manner for the jacket seam area, for example using a plastic strip or a folded-over web seam, but which is not to be carried out further here, the plug-in flap 40 is inserted in the upper area Carrier material introduced a punch 73 extending parallel to the upper cutting edge 85, which is over-coated during the manufacture of the composite, so that there is no open cutting edge to the inside of the package.

It has proven to be advantageous if the punched-out 73 is longer than the distance x between the auxiliary groove lines 66, 67.

In the case of waste-free cutting production, there is inevitably a corresponding punching 75 in the base area, which is then cut through during production, so that in these sections the cutting edge is formed by a pure film composite and the filling material cannot be drawn into the carrier material.

To accommodate pourers or opening aids, the inclined surface 37 is provided with punched and / or punched-out areas 76 which facilitate the fastening of objects or the opening of the package.

FIG. 4 shows a perspective view of a package sealed and molded onto the jacket from the blank 8. The body groove lines appear as body edges and are therefore identified with the same numbers.

The inclined surface 37 is shown in its area hidden by the body surfaces with a dashed line, so that the protrusion of the side pocket surfaces 38, 39 and the gable surfaces 32, 33 for forming the open gable pocket 9 becomes clear. An adapter ring 68 is applied to the inclined surface 37.

FIG. 5 shows a gable view of a package according to FIG. 4 that is open at the bottom. Both the unfolding of the triangular folding tab 35 and the arrangement of this folding tab 35 with respect to the insertion tab 40 and the inclined surface become clear.

FIG. 6 shows a top view of a bottom-sealed package according to FIG. 4 with the triangular folding tab 47 folded over and sealed onto the bottom, and with the edge protector 75 of the bottom seam 65 not partially sealed into the bottom fold.

FIG. 7 shows a cross section through a gable pack according to FIG. 4, equipped with a sealed, reclosable spout 77. The spout 77 lies within the contour of the pack, represented by lines 78, 79. This ensures a flat, protruding stacking of the pack.

Furthermore, it can be clearly seen from FIG. 7 that the angle of inclination β of the packing edge predetermined by the groove line of the gable pocket 9 is half as large as the angle of inclination α of the inclined surface 37.

FIG. 8 shows a view of a gable pack according to FIG. 4 from the narrow side 23 with an adapter ring 68 applied in the gable pocket with a reclosable external spout 80.

FIG. 9 shows a cross section through the gable pocket 9 equipped with external pourer 80 and adapter ring 68.

FIG. 10 shows the external spout 80 inserted into the adapter ring 68 and locked with it in the use position.

It can be seen from FIGS. 8 to 10 that the adapter ring 68 and the external spout 80 lie within the body contour 78, 79 during distribution, but that the external spout protrudes far beyond this contour when the arrangement is ready for use, as a result of which the pouring in the long spout enables targeted pouring is possible because the length of the spout of the external spout is not, as shown in the arrangement according to Figure 7, by the height y or by the cross section of the gable pocket, but, as shown in Figure 8, by the width z of the gable pocket 9, that is is determined by the width t of the narrow side.

FIG. 11 shows a gable view of a package open at the bottom as in FIG. 5, but with the minimally usable inclined surface s of 1/2 × narrow side t. It is clear from FIG. 11 that the limiting groove line 56 falls on the intersection 143 of the groove lines 30, 31, which in this case is identical to the intersection of the oblique groove lines 52, 53.

FIG. 12 shows a gable view of a package open at the bottom as in FIG. 11, but with the maximum usable inclined surface u from the broad side v minus 1/2 x narrow side t. It is clear from this that the limiting groove line 56 falls on the intersection 43 of the oblique groove lines 52, 53 delimiting the triangular folding tabs. That is, the usable inclined surface 37 is limited once by the horizontal base groove line 16 and by the boundary groove line 56, the base groove line 16 being able to lie in the height between the bottom body edge 17 and the gable body edge corresponding to the edge 14 and the boundary groove line 56 between the intersection points 143 and 43.

With the gable packs, a seventh surface and thus an opening over the full width of the narrow side are possible in a single-layer composite.

13, the cardboard carrier material is punched out to form an opening 76a for a spout. The punched-out opening 76a is covered by a subsequent overcoating on both sides.

In the exemplary embodiment in FIG. 14, an opening 76b for a spout is formed in the inclined surface 37b of the A punched opening is provided in the gable area, in which the plastic coating on the inside is undamaged.

In the exemplary embodiment in FIG. 15, a continuous opening 76c is punched out in the inclined surface 37c of the carrier material coated on both sides.

For all three types of opening, depending on the spout used, edge protection can be obtained both when the opening is closed and when it is open.

In the embodiment of FIG. 16, a spout 80a is sealed with a collar 80b on the outside of the inclined surface 37b, in which the punched opening 76b is provided. In this case, edge protection is only provided as long as the punched opening 76b has not been pierced.

In the exemplary embodiment in FIG. 17 with the punched-out opening 76c, complete edge protection is provided, because the spout 80c with its collar 80d is sealed on the inside of the inclined surface 37c.

In the exemplary embodiment in FIG. 19, there is also complete edge protection. In this case, the spout 80e is sealed with a double collar 80f, 80g both on the outside and on the inside of the inclined surface 37c.

The embodiment of FIG. 19 corresponds to that of FIG. 18 with the one difference that in this case the spout 80h is sprayed on and is closed by a membrane 80i to be perforated during the injection molding process.

• a. das Auffalten des längsnahtgesiegelten Mantels oder Schlauchabschnitts zu einem beidseitig am Boden und am Giebel offenen Rohr,
• b. das Vorsterilisieren des offenen Rohres (nur bei aseptischer Abfüllung),
• c. das Aufschieben des Rohres auf einen Formdorn,
• d. das Aktivieren der Giebelzonen mit Heißluft oder Strahlungsheizung,
• e. das Einfalten der Schrägfläche und die weitere Aktivierung der Giebelzonen,
• f. das Einfalten der dreieckigen Faltlappen,
• g. das Umfalten der Stegnaht und das Siegeln der gesamten Giebelflächen,
• h. das Überschieben in eine Zelle,
• i. das Vorfalten des Packungsbodens,
• j. das Nachsterilisieren der giebelversiegelten Packung (nur bei aseptischer Abfüllung),
• k. das Füllen der Packung über den Packungsboden,
• l. das Zufalten und Versiegeln des Packungsbodens über eine Stegnaht mittels Hochfrequenz, Ultraschall, Heißluft, Strahlung, Wärmeimpulse,
• m. das Umlegen und Ansiegeln der dreieckigen Faltlappen auf den Bodenkorpus,
• n. das Wenden der Packung von der Standrichtung Giebel auf die Standrichtung Boden,
• o. das Applizieren eines Ausgießers oder Adapterringes an der Schrägfläche bei angestanzter oder ausgestanzter, durch mindestens eine innenseitige Kunststoffschicht überdeckter Öffnung vor oder nach dem Füllen, insbesondere nach dem Verschließen des Bodens, ober bei ausgestanzternicht überdeckter Öffnung vor dem Füllen, insbesondere vor dem Einfalten der Schrägfläche und insbesondere nach Verschließen des Giebels.

Figure 20 shows the process steps of a preferred Design for producing and filling a gable package according to the invention, namely

• a. unfolding the longitudinally sealed jacket or tube section into a tube open on both sides on the bottom and on the gable,
• b. pre-sterilizing the open tube (only with aseptic filling),
• c. pushing the pipe onto a mandrel,
• d. activating the gable areas with hot air or radiant heating,
• e. folding the sloping surface and further activation of the gable zones,
• f. folding the triangular folding flaps,
• G. folding the bridge seam and sealing the entire gable surfaces,
• H. pushing into a cell,
• i. folding the bottom of the pack,
• j. re-sterilizing the gable-sealed package (only for aseptic filling),
• k. filling the pack over the bottom of the pack,
• l. the folding and sealing of the packaging base via a web seam by means of high frequency, ultrasound, hot air, radiation, heat impulses,
• m. the folding and sealing of the triangular folding flaps on the floor body,
• n. turning the package from the gable to the floor,
• o. the application of a spout or adapter ring on the inclined surface when the opening is punched or punched out, covered by at least one plastic layer on the inside, before or after filling, in particular after closing the bottom, or, if the opening is not covered, before filling, in particular before folding in Inclined surface and especially after closing the gable.

The embodiment of FIG. 21 differs from that of FIG. 20 in that the spout is not attached to the filled package (a), but already to the unfolded package (a '). Therefore, in this exemplary embodiment, as in the exemplary embodiment in FIG. 20, the inclined surface 37 need not be closed at the point intended for the opening, as is shown, for example, in FIGS. 13 and 14. Since the closure is attached before filling (k), edge protection can be realized better.

In the embodiment of Figure 22, the closure is only after completion (g ') of the gable, as in the previous embodiment, before filling (k) attached. The advantages in terms of edge protection are therefore the same.

Claims (18)

1. Cuboid gable package with a flat top and provided with a pouring spout (77) or adapter (68) for a pouring spout, and consisting of a folded package material formed from a plastic multi-layer composite on a support material, in particular as a liquid and/or food package, in which there are provided, in the package material designed as a blank or tube, longitudinal, transverse and oblique groove lines (18-21, 26-29, 41, 42)
      for the body, base and gable edges, the flat top being sealed in the gable area (2) by means of a web seam and having at one corner area a turned-down fold pocket formed from triangular fold tab areas (34-36), characterized in that, in the opposite corner area between the flat top (32, 33, 133) and the adjoining body wall (23), an inclined surface (37) is arranged which is produced by means of a re-entrant fold and which, with lateral pocket surfaces (38, 39) bearing on the inside against the adjacent body walls (24, 25, 125), forms a gable pocket (9) which lies within the cuboid outer contour of the gable package and in which the pouring spout (77) or adaptor (68) arranged on the inclined surface (37) is accommodated.
2. Gable package according to Claim 1, characterized in that the inclined surface (37) is delimited at its one set of opposite sides by the vertical body groove lines (20, 21) lying between the narrow side (23) of the body and the adjacent broad sides (24, 25) of the body, and at its other set of opposite sides by a body groove line (16) arranged horizontally on the narrow side (23) of the body and by a delimiting groove line (56) arranged at a distance from the latter and arranged offset, in the direction of the gable area (12), with respect to the horizontal body groove lines (27, 29) lying between the body area (11) and the gable area (12) in the broad sides (24, 25) of the body.
3. Gable package according to one or more of Claims 1 to 2, characterized in that the inclined surface (37) is part of the gable pocket (9) which, starting from the horizontal body groove line (16) in the narrow side (23) of the body, is at least partially delimited by wall parts protruding beyond the inclined surface (37).
4. Gable package according to one or more of Claims 1 to 3, characterized in that the protruding wall parts are delimited by groove lines additionally arranged in the body area (11) and in the gable area (12).
5. Gable package according to claim 4, characterized in that the additional groove lines, starting from the horizontal body groove line (16), are designed as continuous oblique groove lines (30, 31) running through the broad sides (24, 25) of the body and gable surfaces (34) of the gable area (12) and meeting, in the area of this gable surface, incision lines (57, 58) running essentially parallel to the body groove lines (20, 21), and as auxiliary groove lines (62, 63, 66, 67) going out from these oblique groove lines (30, 31).
6. Gable package according to claim 5, characterized in that the angle γ between the groove lines (30, 31) and the auxiliary groove lines (62, 63) is the same size as the angle δ between the groove lines (30, 31) and the horizontal body groove lines (27, 29), and the angle ρ between the vertical body groove lines (20, 21) and the further auxiliary groove lines (66, 67) is half the size of the angle π between the vertical body groove lines (20, 21) and the auxiliary groove lines (62, 63).
7. Gable package according to one or more of Claims 2 to 6, characterized in that, by means of the delimiting groove line (56) and the body groove lines (20, 21), an insert flap (40) is arranged which adjoins the inclined surface (37) and is to be sealed in.
8. Gable package according to one or more of claims 5 to 7, characterized by punch-outs (73, 75) which are arranged respectively on the upper and lower blank edge (85, 86) and whose width is greater than the narrowest distance (x) between the auxiliary groove lines (66, 67).
9. Gable package according to one of Claims 1 to 8, characterized in that the inclined surface (37, 37b) is provided with an initially punched opening (76b) for receiving a pouring spout (80a) or adapter.
10. Gable package according to Claim 9, characterized in that the initial punch is situated exclusively on the outside of the inclined surface (37b).
11. Gable package according to one of Claims 1 to 8, characterized in that the inclined surface (37a, 37c) is provided with a punched-out opening (76a, 76c).
12. Gable package according to Claim 11, characterized in that the edge of the punched-out opening (76a) is covered, at least towards the interior of the package, by the inside plastic layer of the plastic multi-layer composite.
13. Gable package according to Claim 12, characterized in that the edge of the punched-out opening is covered by the inside and outside plastic layer of the plastic multi-layer composite.
14. Gable package according to Claim 12 or 13, characterized in that the plastic layer or plastic layers covering the edge cover(s) over the punched-out opening (76a).
15. Gable package according to one of Claims 9 to 14, characterized in that the pouring spout (80a) is sealed onto the outside of the inclined surface (37b).
16. Gable package according to one of Claims 9 to 14, characterized in that the pouring spout (80c, 80e, 80h) is sealed onto the inside of the inclined surface (37c) with a collar (80d, 80g).
17. Gable package according to one of Claims 9 to 16, characterized in that the pouring spout (80e, 80h) is sealed onto the inside and outside of the inclined surface (37c) with a double collar (80f, 80g).
18. Method for the production of a gable package from a plastic multi-layer composite on a support material according to one or more of Claims 1 to 8, characterized by the following itemized method steps:

    a) folding open the casing or tube section, sealed with a longitudinal seam, to give a tube which is open at both the base and at the gable,

    b) pre-sterilizing the open tube in the case of aseptic filling,

    c) pushing the tube onto the forming mandrel,

    d) activating the gable areas with hot air or direct heating,

    e) folding-in the inclined surface and further activation of the gable area,

    f) folding-in the triangular fold tabs,

    g) folding over the web seam and sealing all the gable surfaces,

    h) transferring to a cell,

    i) preliminary folding of the package base,

    j) subsequent sterilization of the gable-sealed package in the case of aseptic filling,

    k) filling the package via the package base,

    l) folding and sealing of the package base via a web seam by means of high-frequency welding, ultrasonic hot-air radiation, heat impulse welding,

    m) turning-down and sealing-on of the triangular fold tabs onto the base of the body,

    n) turning over the package from the direction in which it is standing on its gable to the direction in which it is standing on its base,

    o) applying a pouring spout or adapter ring to the inclined surface, in the case of an initially punched or punched-out opening covered by at least one inside plastic layer, before or after filling, in particular after closure of the base, or, in the case of a punched-out opening which is not covered, before filling, in particular before folding-in the inclined surface and in particular after closure of the gable.

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