EP0241844A2 - Package for fluids with a handle - Google Patents

Abstract

A liquid pack is described with a tube (1) with a bottom (3) and lid (4) formed by a longitudinal seal seam, which is made of thermoplastic material without a carrier material, is molded onto the tube (1) and has a pouring device (5). The tube consists of coated cardboard. The bottom (3) is square and formed from the folded tube (1) as a folding closure. A handle (6) is attached to the side of the tube (1) and below the lid with the lid (4). So that the end user is offered good handling and the pack can be stored and transported in a space-saving manner, the manufacture from a flat cardboard web being to be ensured, the invention provides that the dimension (a, a) of the base (3) forms a cuboid The outer contour of the pack is equal to the square cross-sectional dimension of the pack from the bottom (3) to the lid (4) and that the handle (6) is molded together with the lid (4) within the cuboid outer contour of the pack.

Description

The invention relates to a package for flowable fillings with a tube formed by at least one longitudinal sealing seam, at the ends of which the bottom and lid are attached, of which the lid consists of thermoplastic material without carrier material, is molded onto the tube and has a pouring device, the tube from at least one side with a thermoplastic coated substrate, e.g. Cardboard exists, the bottom is square and is formed from the folded tube of the pack as a folding closure and a handle connected to the lid is attached to the side of the tube and below the lid.

Of the large number of liquid packs, those are known which are formed from a flat, coated cardboard web into a tube, filled and provided with a bottom and a lid. The smaller packages used for milk, fruit juices, wine and the like, for example with a volume of 1 1, usually have no handle. However, there are also efforts to create larger packages, for example for the transport of drinking water.

With these larger packs, it is expedient to give the consumer a handle attached to the pack so that handling, namely carrying and pouring, is more pleasant.

The pack manufacturers have made various considerations as to how the cheapest and cheapest way to attach a handle to a plastic packaging of the type described above. One of the considerations is that a part of the tube wall adjoining the circumference of the lid is folded onto itself to form the handle and connected to form a double-walled surface in which the gripping opening is provided. One has one too thinks that it would be useful if the molded cover were extended over the top edge of the double-walled surface with the gripping opening to a stiffening web. The manufacturer could create such a pack from a flat sheet, while the other advantages of known packs could also be retained, for example good opening of an otherwise tight pouring device, reclosing of the same, etc.

The double-walled surface with the gripping opening could, according to the above-mentioned packing, be configured triangularly in such a way that its upper edge forms a short catheter, its outer folding edge running approximately in the longitudinal direction of the tube forms a long cathete and the two inner folding edges lying one on top of the other form the hypotenuse. This area could best be made triangular, with each half of this double-walled area also being triangular. This results in a good grip with a tough grip.

Such a pack would have the disadvantage, however, that apart from a special, unavoidable cut of the shape at the bottom and lid of the pack, there would be a fold for the triangular surface mentioned, which would offer a relatively large dead space for the overall pack. Such a package could only be stacked, stored and transported with a large amount of dead space when relatively large volumes were used. The pack manufacturer is aware, however, that the costs of transporting and storing liquid packs play such a significant role that further considerations have been made with the aim of further improving the pack described above.

It is therefore an object of the present invention to provide a package of the type specified in the introduction which offers the end user good handling and can be stored and transported in a space-saving manner, the Production from a flat cardboard web should be guaranteed.

This object is achieved in that the outer dimension of the base to form a cuboid outer contour of the pack is equal to the square cross-sectional dimension of the pack from the bottom to the lid and that the handle is molded together with the lid within the cuboid outer contour of the pack. If one designs the package described at the beginning in the manner provided with these features, then the end user will find an easy-to-use liquid or flow agent package which is also of particular economic and technical interest for the manufacturer and distributor of such a package, since it can save space transported and stored. If you also use known spraying techniques, the entire package can also be made from a flat cardboard web. For example, a tube could be formed from the flat cardboard web, connected via a longitudinal sealing seam and provided with the lid and handle on one side using a plastic injection machine; then filled and finally completely closed by means of the folding clasp.

A suitable pouring device, which is also known per se, can be attached by injecting the lid. This provides the end user with a liquid pack that has largely achieved all of the desirable properties.

If one speaks above of a cuboid outer contour of the pack, then this means the general shape of a cuboid, which can have rectangular side walls. If the bases of a parallelepiped are rectangular and the parallelepid is straight, it is called a cuboid.

In contrast to the package with the double-walled triangular fields with a gripping opening, such a double-walled triangular field of this kind is cut off from the coated cardboard web in the pack according to the invention, for example where the gripping opening of the handle begins at the pack discussed at the beginning. In addition, the folding can be done differently in such a way that in the lower area up to the middle area the package remains cuboid and only in the upper area is a tetrahedral or pyramid-shaped space cut or removed, in which the molded handle is accommodated . When stacking and for transport, the package according to the invention can be packed face to face without the expensive dead space.

In a further advantageous embodiment of the invention, the handle is located in a tetrahedral space, one edge of which is formed by the diagonal of the cover. As is well known, the tetrahedron is a triangular pyramid. It therefore has triangular tetrahedral surfaces, and the one edge of the one surface lies in the preferred embodiment just described in the diagonal of the cover. This diagonal is expediently between those two corners of the rectangular or square cover at which the pouring device is not provided. In other words, a straight line runs from the center of this diagonal to the pouring device or pouring tip of the lid perpendicular to the diagonal mentioned. When viewed from above on the lid, the handle then also runs perpendicular to this diagonal, but away from the pouring device to the other side of the diagonal. The pack can be produced particularly easily in this way because the diagonal also results in favorable folds.

It is also advantageous according to the invention if the tetrahedron surface passing through the diagonal of the cover intersects the rear longitudinal edge of the tube in a lower corner point, which is 1/3 to at a distance from the cover 1/2 the height of the pack. In other words, the inclination of the molded handle to the cover or to the longitudinal axis of the tube can be selected and adjusted in this way. It is useful if the handle is as close as possible to the center of gravity of the pack. This is achieved if the handle can be positioned more towards the center of the pack. This has practical reasons for use by the end user. If the latter has opened the package, the package should be as vertical as possible when the package is lifted using the handle according to the invention, so that good is not undesirably poured out too early at the start of pouring.

The measures according to the invention also have the further advantage that an inexpensive folding can be provided and thus less paper or cardboard is used.

It is also expedient according to the invention if a double-walled base strip made of coated cardboard is provided, starting from the lower corner point and running in the direction of the longitudinal axis of the tube to the cover. With its help, the handle can be firmly anchored to the cardboard material in the area of this tetrahedral surface over the entire height of the tetrahedral surface on the diagonal. Even with larger liquid packs, the handle can no longer be removed from the pack during normal use. All forces introduced into the handle by the weight of the filled package are evenly distributed.

It has also proven advantageous according to the invention if the. double-walled base strips are shorter than the height of the triangular tetrahedral surface on the diagonal and only part of the tetrahedral surface consists of coated cardboard. From the upper, cover-side end of the double-walled base strip up to the diagonal and to the side of this line up to the ends of the diagonal, this results in a triangular surface which, according to the inventors' ideas, should consist of plastic and preferably two se with particular advantage should be molded onto the cardboard material together with the handle and the lid. One advantage achieved in this way is the avoidance of the cut of the shape already described above. If a package of the type described in the introduction with the double triangular gripping field with the gripping opening arranged therein were formed from a blank, the person skilled in the art of producing the blank would immediately notice that the cut lines of the cardboard material for the package in the shape of the facade were produced on the bottom and lid sides must be guided, because otherwise a flat surface for the lid and / or bottom is not guaranteed after the shaping, folding and sealing. According to the invention, these elaborate cuts can be avoided with simple means.

It is also advantageous according to the invention if a lifting handle is attached in the area of the lower corner point. Its attachment allows a position for the main handle in such a way that the pack is predominantly vertical before the first pouring of the filling material, so that sponging is avoided. Nevertheless, the end user can use only one hand to tip this pack out of the vertical with the least effort, for example because a single finger of the hand is placed in the lifting handle and is sufficient to produce the horizontal component. This lifting handle makes pouring particularly pleasant and simplified.

Furthermore, it is expedient according to the invention if the upper edge of the handle fastened to the lid is rounded from the rear longitudinal edge of the tube upwards to the lid and forwardly to the pouring device and merges into at least one partial surface of the lid. These measures allow elegant lines and the creation of an appealing exterior of the pack, while at the same time all technical advantages are fully retained. It goes without saying that the handle can be stiffened in a manner known per se, for example, a profile is obtained by means of transverse or longitudinal ribs, or also ribs which extend radially outward from the gripping opening. The rounded outer surface of the handle can also be designed in the form of a stiffening edge.

• Figur 1 die perspektivische Ansicht einer Flüssigkeitspakkung mit den Merkmalen gemäß der Erfindung,
• Figur 2 eine Seitenansicht der Packung, wenn man auf Figur 1 von links unten blickt,
• Figur 3 eine Rückansicht der Packung vom Griff in Richtung auf die Ausgießeinrichtung,
• Figur 4 eine Draufsicht auf die Packung, hauptsächtlich auf den Deckel,
• Figur 5 eine abgebrochene Schnittdarstellung der Ausgießeinrichtung etwa entlang der Linie V-V der Figur 4,
• Figur 6 eine ebenfalls schematische abgebrochene ähnliche Darstellung wie Figur 5, jedoch senkrecht dazu, etwa entlang der Linie VI-VI in Figur 4,
• Figur 7 eine abgebrochene Seitenansicht eines Griffes mit Hebegriff gemäß einer anderen Ausführungsform und
• Figur 8 einen Zuschnitt auf die beschichtete Kartonbahn zur Bildung des Tubus mit Boden einer Packung der beschriebenen Art.

Further advantages, features and possible uses of the present invention will become apparent from the following description in conjunction with the drawings, which show various preferred embodiments. They represent:

• FIG. 1 shows the perspective view of a liquid pack with the features according to the invention,
• FIG. 2 shows a side view of the package when looking at FIG. 1 from the bottom left,
• FIG. 3 shows a rear view of the package from the handle towards the pouring device,
• FIG. 4 shows a plan view of the package, mainly on the lid,
• FIG. 5 shows a broken sectional view of the pouring device approximately along the line VV in FIG. 4,
• FIG. 6 shows a likewise schematic broken-off illustration similar to FIG. 5, but perpendicular to it, approximately along the line VI-VI in FIG. 4,
• Figure 7 is a broken side view of a handle with a lifting handle according to another embodiment and
• Figure 8 shows a cut to the coated cardboard web to form the tube with the bottom of a pack of the type described.

The finished pack for liquids shown in FIGS. 1 to 4 consists of the tube, designated overall by 1, which forms the four side walls, which are designated in particular by la, lb, lc and ld in FIG. It can be seen that only the two side walls la and ld are rectangular, while the side walls lb and lc are trapezoidal.

The four side walls la - ld are formed over the longitudinal sealing seam 2 to the tube 1.

The floor, generally designated 3, is formed in a manner known per se by those wall panels which are shown in the blank in FIG. 8 below.

Rather, the area of the lid 4 is important and interesting for the explanation of the invention. In the front area, the lid 4 is provided with the pouring device 5, which is shown somewhat more precisely with reference to FIGS. 5 and 6, and in the rear area with the handle 6. It can be seen how the handle 6 is completely arranged within the cuboid outer contour of the pack. It is located practically in a tetrahedral space between the diagonal D of the cover 4 and the upper cut-off area of the rear longitudinal edge 7 above the lower corner point P. Seen from above in a top view of the cover 4 (FIG. 4), the outer dimension a can be seen. a (FIG. 1) of the bottom 3. These are the side lengths a, which are also the side lengths of the square of the cover 4 according to FIG. 4. In the embodiment shown, this square is the square cross-sectional dimension of the pack. This extends from the bottom 3 of the pack to the lid 4 over the entire height H of the pack.

The outer contour of the pack is also determined by the height dimension H (Figure 2). Since the handle 6 is located entirely within the outer contour of the pack, the upper part of the handle 6 does not protrude above the pack in the illustration in FIG. 2 (size H). The outer contour of the pack is practically formed by the cuboid, which results from the product of the two side lengths, a and the height H, the volume of which is equal to a-a-H.

The tetrahedral space in which the handle 6 is located has already been mentioned above and can be on best explain in connection with Figures 1 to 3. Three sides of this tetrahedral space are formed by the cut-off extensions of the surface of the cover 4 beyond the diagonal D to the rear from the pouring device 5 and the two adjacent side walls 1b and 1c. It is understood that these two side walls lb, lc or their extensions intersect at the so-called rear end of the pack in the rear longitudinal edge 7. Above the lower corner point P, this rear longitudinal edge 7 runs a little further in the outer edge of the handle 6, but then moves away from the outer edge of the handle 6, as this edge bulges inwards and upwards towards the lid, as best from the Figures 1 and 2 can be seen. The two edges (not shown) of the tetrahedral space then result from the intersection lines of the side walls 1b and 1c with the extension of the cover surface 4 from the front beyond the diagonals D to the rear (not shown).

In the figures 1 to 6 shown here, the handle is shown as being arranged in a tetrahedral space as described above. Here, the lower corner point P can be arranged at a distance d (FIG. 2) from the cover 4, which is equal to 1/3 to 1/2 the height H of the pack. On the other hand, the handle 6 does not have to start from a diagonal D as shown in FIG. 1, but can also be further forward or further back. In another embodiment, not shown, the space in which the handle 6 is located within the outer contour of the package can also start from a line in the lid 4 which lies in front of the diagonal D, i.e. within the triangle, which is formed by the two side edges a next to the pouring tip and the diagonal D. Another other embodiment could also have the handle in a space that is smaller than the space from the lower corner point P to the diagonal D. However, the handle 6 should be located substantially near and above the center of gravity of the filled package.

Of the tetrahedron-shaped space, only that surface is shown in the exemplary embodiment shown, which runs through the diagonal D of the cover 4 and the lower corner point P and thereby forms the cutting lines S1 and S2 with the side surfaces 1b and 1c. An isosceles triangle is spanned by the sides S1, S2 and D. In this triangular tetrahedral surface F, starting from the lower corner point P in the direction of the longitudinal axis 8 of the tube to the cover 4, there is a double-walled base strip 9, which is shown in FIG. 2 by a dashed line which is shown parallel and at a small distance from the line S1 is. This dashed line is the upper edge of this double-walled base strip 9, which lies completely in the handle 6 and does not protrude into the gripping opening 10. The lower web of the handle 6 between the gripping opening 10 and the tetrahedral surface F can be attached to this double-walled base strip 9 in a particularly favorable manner. Cover 4 with handle 6 can be welded or injection-molded onto base strip 9, for example, in the manufacture of the pack, when the top end of tube 1 is closed.

If one takes a closer look at FIGS. 1 to 4 and their cut according to FIG. 8, then it is also found that the outer contour of the handle 6 on the pack side, i.e. below, not completely in contact with the tetrahedral surface F, which like the tube 1 consists of cardboard material coated with plastic. Rather, the tetrahedral surface F is cut off at lines 11 and 12, so that there is a partial triangular surface f which, in the embodiment shown, consists of plastic without a carrier material and is molded together with lid 4 and handle 6 on the edges 11 and 12 of the coated cardboard .

Since the double-walled base strip 9 is formed from the coated cardboard material, it extends from the lower corner point P inwards and upwards to the cover 4, but does not reach the cover 4 but ends beforehand at the intersection of the two lines 11 and 12, so that it shorter than the height h (only shown in the other embodiment of FIG. 7) of the tetrahedral surface F on the diagonal D. Consequently, only part of the tetrahedral surface F consists of coated cardboard, namely that part which is formed by the side edges S1, S2, 11 and 12. The other surface f, which is even outside the plane of the tetrahedral surface F, consists only of plastic without a box.

FIG. 7 shows another embodiment of the invention, in which a lifting handle is arranged in the area of the lower corner point P, namely in the case of a 2 l liquid pack, at a small distance of 2 to 4 cm, preferably with the handle 6 in one piece on the rear Longitudinal edge 7 is molded. When the package is opened for the first time, the end user can, for example, insert one to three fingers into the gripping opening 10 of the handle 6 in order to lift the package for dispensing, and engage with the finger 13 in the lifting handle 13 in order to control the tilting movement more precisely.

The pouring device shown in more detail in FIGS. 5 and 6 and generally designated 5 consists of a lid 14 of elongated shape, on the top of which a handle 15 is molded. On the lower side opposite the handle 15, an all-round flange 16 is formed on the lid 14 towards the inside of the pack, which has an undercut 17 over a wedge-shaped collar 18. The lower edge 19 of this collar 18 protrudes into the interior of the package, and the entire pouring device (except for the handle 15, which is folded over in the transport configuration) is located in a depression designated by 19, which is characterized by ramp-shaped inclined surfaces 20 and 21 (everything Plastic) is formed. These ramp-shaped inclined surfaces then merge into the general upper wall of the cover 4, designated 22 in FIG.

At point 23 (Figures 5 and 6), a line of weakness is provided around the collar 16, along which at first opening of the lid 14 can be torn out of the lid surface 21. To the rear towards the handle 6, the cover 14 is articulated via a band 24 as a hinge. This runs above the wall 25 (FIG. 5), whereby a space 26 is formed which is open under the band 24 on both sides.

It can be seen from FIG. 6 that a first plane E 1 is defined by the weakening line 23 approximately halfway up the collar 16, which lies at a distance a '(FIG. 6) from the main plane E 2, which passes through the surface of the cover 4 or its surface Wall 22 is formed. The surface 27 of the tearable closure cap 14 of the pouring device 15 lies in a third plane E3, which lies between the lower plane E1 and the upper plane E2. If, after the cover is molded onto the tube 1, the handle 15 is folded horizontally, the space between the third surface E3 and the upper level E2 is sufficient to accommodate the entire wall thickness of the handle 15. In this folded shape ( Transport shape), in which, for example, the cover 4 can be formed, all parts that are formed together with the cover are located in one piece within the outer contour of the overall package.

While in the embodiment shown in the drawings only a double-walled base strip 9 is arranged in the handle area, the upper edge of which is shown by the dashed line in FIG. 2 and the lower edge of which is in the projection of line S1, the handle 6 can also be in the lower quarter, in lower third or in the lower half of the coated cardboard alone, while the rest of the handle 6 is made of plastic without a carrier material. On the other hand, the middle part can also consist of a combination of plastic and coated cardboard, and the lower part can only be constructed from the normally coated cardboard. In the embodiment shown in FIG. 7, a plastic strip should also be formed not only on the outside but also inside the pack from top to bottom approximately up to the region of the lifting handle 13. In a further preferred embodiment of the plastic strip can also over the area or the height of the _H ebegriffes addition to 13 after extending molded to the floor below are.

Claims (7)

1. Pack for flowable filling goods with a tube formed by at least one longitudinal sealing seam (2), at the ends of which bottom (3) and lid (4) are attached, of which the lid (4) consists of thermoplastic material without carrier material, on the tube is injection molded and has a pouring device (5), the tube being made of carrier material coated with thermoplastic at least on one side, for example Cardboard, there is the bottom (3) is square and is formed from the folded tube (1) of the package as a foldable closure and a handle (6) connected to the lid (4) on the side of the tube (1) and below the lid ( 4) is attached, characterized in that the outer dimension (a, a) of the bottom (3) with formation of a cuboid outer contour of the pack is equal to the square cross-sectional dimension of the pack from the bottom (3) to the lid (4) and that the handle (6) is molded together with the lid (4) within the cuboid outer contour (a, a, H) of the pack. 2. Pack according to claim 1, characterized in that the handle (6) is in a tetrahedral space, one edge of which is formed by the diagonal (D) of the cover (4). 3. Pack according to claim 1 or 2, characterized in that the tetrahedron surface (F) passing through the diagonal (D) of the cover (4) intersects the rear longitudinal edge (7) of the tube (1) in a lower corner point (P), which is at a distance (d) from the lid (4) equal to 1/3 to 1/2 the height (H) of the pack. 4. Pack according to one of claims 1 to 3, characterized in that a double-walled base strip (9) made of coated cardboard is provided starting from the lower corner point (P) in the direction of the longitudinal axis of the tube center (8) to the lid (4). 5. Pack according to one of claims 1 to 4, characterized in that the double-walled base strip (9) is shorter than the height (h) of the triangular tetrahedral surface (F) on the diagonal (D) and only part of the tetrahedral surface (F) made of coated cardboard. 6. Pack according to one of claims 1 to 5, characterized in that in the region of the lower corner point (P) a lifting handle (13) is attached (Figure 7). 7. Pack according to one of claims 1 to 6, characterized in that the upper edge of the handle (6) attached to the cover (4) from the rear longitudinal edge (7) of the tube (1) up to the cover (4) and forward is rounded towards the pouring device (5) and merges into at least one partial surface of the cover (4).

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