DE9404310U1 - Shaped body for receiving and packaging objects - Google Patents

Description

TELEF0N:0711/7800995 JELEFAX:0711/7800996 TELEX':lf7ßllV4Opaßb _t 'I ' *··; ^: ·

KÖHLER SCHMID + PARTNER PATENT ATTORNEYS

KÖHLER SCHMID + P. RUPPMANNSTR. 27 D-7000 STUTTGART 80

20 368 Co/nu

Koch Maschinenbau GmbH

Ringstrasse 14

72285 Pfalzgrafenwei ler

Dip!-Ing. Volker Ohrnberger Ahornstrasse 40 75217 Birkenfeld

LMG ROTOPACK GmbH Ulmer Strasse 184-188 70069 Stuttgart 1

Moulded bodies for holding and packaging objects

The present invention relates to a molded body made of a cellulose material such as cardboard, paper, glassine or the like, which serves to hold and package objects and has a plurality of compartments, chambers, bowls or the like, the partition walls of which are formed by folding the molded body material, with folding folds then being introduced into the excess molded body material located between the partition walls, which reduces the excess.

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This type of molded body is in particular inserts for holding the intended packaging goods, also called "trays", which have a large number of compartments, chambers or bowls adapted to the packaging goods to be held and are generally provided with special outer packaging. Up to now, such inserts intended for holding chocolates or the like have been manufactured in particular by shaping a plastic film. Although these plastic inserts have proven themselves in practice, they are ecologically and economically disadvantageous for environmental protection reasons. In these applications, too, the use of such plastic should be avoided wherever possible and an environmentally friendly material should be used. In order for these inserts and the associated outer packaging material to be disposed of together with the waste and also recycled together, these molded bodies and their outer packaging must be made of the same or a similar material. Cardboard, paper, glassine or the like are particularly suitable as molded body materials.

In this context, a molded body of the type discussed above has already become known, in which the molded body material made of cardboard or paper has lateral and longitudinal folds introduced into it to form the partition walls that delimit the compartments, chambers or bowls. In order to accommodate the excess molded body material between the partition walls in a simple and trouble-free manner in the molded body formed, folds are introduced into this excess material, which

are inserted into the folds from the open front sides of the transverse or longitudinal folds. This measure, which is easy to implement, requires that the front sides of the transverse or longitudinal folds in question are separated from the adjacent fold by an incision. However, such a large number of incisions significantly impairs the rigidity of the molded bodies, which is particularly detrimental to packaging with a relatively high weight. In addition, such open front edges are undesirable or even prohibited, particularly in the food sector.

The object of the present invention is to eliminate these previously identified deficiencies and to create a molded body of the type in question which, on the one hand, is characterized by a particular rigidity, but on the other hand also has no openings or incisions.

This object is achieved according to the invention in that the folds of the molded body are closed throughout and the folding folds are not inserted into the adjacent transverse or longitudinal folds that are open at the front, but rather reach as closely as possible over and/or under these partition walls of the compartments, chambers or bowls of the molded body, which are designed as transverse or longitudinal folds, or are completely immersed in them.

This design is particularly advantageous in that such a rigid molded body can be easily removed from a

plan material such as cardboard, paper, glassine or similar can be produced, this production can be carried out continuously and mechanically and the excess molded body material located between the partition walls does not have to be pressed, displaced or otherwise cut off. A particularly simple and attractive design of the molded body is also achieved.

The fold lines of these folds introduced into the molded body material can partly run in the direction of the said partition walls, but partly they are also directed at an angle to them. The folds themselves advantageously have a polygonal, in particular a triangular, shape.

To further stiffen the molded body, the opposite sides of these folds can also be glued, stapled or otherwise connected to one another.

In this context, it is also expedient if the outer edges of these shaped bodies are bent outwards and form stiffening ribs.

In a special design of such a molded body, which can be referred to as a twin, two molded body parts, each having at least one compartment or the like, are connected along adjacent upper edges by means of one or more hinges in such a way that

connected in such a way that these two molded body parts with their open compartments can be folded against each other and thus form a self-contained molded body with an upper part and a lower part.

If it is a rectangular shaped body, its partition walls, which are advantageously slanted relative to the outer walls, can also run diagonally. In this case, it is advantageous if a rectangular, particularly square, part of each partition wall is designed as a double fold, with one fold of this part running in the longitudinal direction of the partition wall and the other fold running transversely to this longitudinal direction.

Finally, it is also advantageous if the intended folding lines are rolled, scored, embossed, cut or punched into the molded body material before it is deformed.

Further details of the present invention emerge from the following description of four exemplary, similar embodiments of the molded body and the claims that follow them. They show:

Fig. 1 is a diagrammatic representation of a first embodiment;

Fig. 2 is a view of the same in the direction of arrow A;

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Fig. 3 is another view in the direction of arrow B;

Fig. 4 is a section along the line 4-4;

Fig. 5 is a plan view of the corresponding material cut;

Fig. 6 shows the representation of various consecutive

up to 9 working processes in the manufacture of the molded body;

Fig. 10 is a diagrammatic representation of a second embodiment;

Fig. 11 is a section along the line 11-11;

Fig. 12 is a view in the direction of arrow C;

Fig. 13 is a view in the direction of arrow D;

Fig. 14 the top view of the material cut provided for this second embodiment,

Fig. 15 is a top view and side views of a third to 17 foldable embodiment;

Fig. 18 is a perspective view of the corner of a fourth embodiment,

Fig. 19 a top view of the corresponding material cut and

Fig. 20 shows two consecutive steps and 21 when folding the corner part shown in Fig. 18.

Fig. 1 shows a diagrammatic representation of an insert 1, also referred to as a "tray", for holding a packaged item consisting of, for example, biscuits or the like, whereby the insert 1 filled with this packaged item must then be surrounded by a special outer packaging, preferably made of the same recyclable material.

This insert 1 consists of a cellulose material that has only a low elasticity, a low tear resistance and no plasticity and is easily recyclable, such as paper, laminated paper, glassine or the like, and has two compartments 2 and 3, the end walls of which are each designated 4 and the outer side walls of which are each designated 5. Between these two compartments 2 and 3 there is then a partition wall designated 6, which is designed in the same way as the side walls 5. The end walls 4 each form an angle χ of, for example, 90' or greater with the base 7, with the edges 8 being bent outwards to form reinforcing ribs and the ends 9 of these edges 8 on both sides being bent downwards.

However, as regards the side walls 5 connecting these end walls 4 and the partition wall 6, these consist of

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because it consists of a double fold 10 which is open towards the bottom and whose two fold parts 11 and 12 form an angle designated by y.

To produce this insert 1, a blank 13 made of cardboard or the like is used, shown in Fig. 5 in plan view, in which the individual parts of this insert 1 are identified by the same reference numerals used previously.

During the manufacture of this insert, this blank 13 is fed to suitable tools in the direction of arrow 14, whereby in a first step shown schematically in Fig. 4, the two end walls 4 are bent upwards from the base 7 and then their edges 8 are bent outwards again.

According to the process step shown in Figures 6 and 7, after the formation of the first side wall 5, the blank 13 is pushed further forward, whereby the one double fold 10 forming the partition wall 6 between the two compartments 2 and 3 is formed with the two fold parts 11 and 12. At the same time, the two triangular folds 16 and 17, which are open downwards on one side and upwards on the other, are formed from the excess blank material 15. These folds 16 and 17 consist of the fold parts 18 and 19 or the fold parts 21 and 22, still hang together at the intersection point 22 and are connected to the two sides via the web-like side folds 23 and 24.

End walls 4 of the adjacent compartments 2 and 3, as can be seen in particular from the view shown in Fig. 7 in the direction of arrow E.

If the blank 13 is then pushed further in the direction of the arrow 14 against the already formed compartment 2, the previous side angle y is reduced from, for example, 45' to 5", as can be seen in particular from Figs. 8 and 9. At the same time, the two fold parts 18 and 19 of the two lower folds 16 lie against the surface of the side parts 11 and 12 of the double fold 10 and the fold parts 20 and 21 of the folds 17 lie close to one another, as can be seen in particular from Fig. 9. Likewise, the triangular side folds 23 and 24 with their edges 25 lie snugly against the surfaces of the fold parts II and 12 of the double fold 10.

After the previously discussed formation of this partition wall 6 consisting of the double fold 10, the blank 13 is again pushed forward in the direction of the arrow 14 so far that the outer, similar second side wall 5 can now also be produced by forming a similar double fold 10 and the associated folding folds 16 and 17, as was previously done with the first side wall 5.

The other Figs. 10 to 14 show another embodiment of this insert 1, wherein the same molded parts are again identified by the same reference numerals. In this case

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a conical shape is provided as shown in Fig. 10, in which the partition wall 6 as well as the side walls 5 and the end walls 4 each enclose an angle ζ with the base 7 that is greater than 90'. This conical design of the insert 1 has the particular advantage that a large number of such inserts 1 can be easily stacked and the inserts 1 stacked in this way can then be easily separated from one another.

The other figures 15 to 17 show a top view and two side views of a third, twin-designed embodiment of such a molded body 26, which is also surrounded by a horizontal edge 8 and consists of two identical molded body parts 28 and 29, each with two compartments 27, which are folded from a single cut and connected to one another along their common center edge 30. After the specified contents have been introduced into the four compartments 27, as can be seen from figures 16 and 17, the right molded body part 29 can be pivoted in the direction of arrow F around this common center edge 30, which serves as a hinge, so that the two molded body parts 28 and 29 lie against one another with their compartments 27 and form a molded body 26 that is closed on all sides.

The height H of the appropriately inclined outer walls 31 of this molded body 26 is always the same size, but the height h of the partition walls 32 located between the compartments 27, which are preferably V-shaped in cross section and thus inclined, can, as can be seen from Fig. 16, also be smaller if necessary.

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A fourth embodiment is shown in Figs. 18 to 20. In this case it is a corner part 33 - shown in Fig. 18 - with two outer walls 34 which are perpendicular to one another and slightly inclined outwards and a diagonally directed partition wall 35 which is V-shaped in cross section and which forms an angle w of 1 with the two adjacent outer walls 34.

Fig. 19 shows the top view of an associated blank 36, in which the two base parts are designated 37 and the horizontal edges of the outer walls 34 are designated 38. In order to be able to raise these two outer walls 34 and fold the two partition wall parts against each other along their common upper edge 40, a folding part 46 consisting of the four partial folds 42 to 45 is provided adjacent to the outer end 41 of this partition wall 35, to which the two transition parts 47 and 48 with the two associated edge parts 49 and 50 are connected.

When folding this corner part 33, as can be seen from the following two figures 20 and 21, the two outer walls 34 are first raised in the direction of the arrows G and the two partition wall parts 39 are folded against each other along their common upper edge 40. In this case, the crossing point M moves towards the crossing point N on the upper edge 40, which results in the partial folds 42 to 45 being folded against each other. In the final position shown in figure 18, the two transition parts 48 and 50 are on the two end edges 51 and 52 of the partition wall 35, where

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The part folds 42 to 45 then dip, come to lie under the two transition parts 47 and 48 and are completely covered by them. At the same time, the edge parts 49 and 50 also lie against one another and can be glued or otherwise connected to one another if necessary. The end edges 53 and 54 on both sides of the edge parts 49 and 50 then also abut one another flush. The corner part 33 has thus acquired its intended design.

Claims (18)

- 13 - 20 368 Co/nu claims 1. Molded body for receiving and packaging objects, which is made from a material consisting of cellulose material such as cardboard, paper, parchment paper or the like and has a large number of compartments, chambers, bowls or the like adapted to the goods to be received, the partition walls of which are formed by folding the molded body material, with folding folds being introduced into the excess molded body material located between the partition walls in order to reduce the excess, characterized in that the folds (10) of the molded body (1) are continuously closed and the folding folds (16, 17) reach over and/or under the adjacent partition walls (6) of the compartments (2, 3), chambers or bowls or are completely immersed in them. 2. Shaped body according to claim 1, characterized in that the folds (16, 17) are each designed as double or twin folds. 3. Shaped body according to claims 1 and/or 2, characterized in that the fold lines of the folding folds (16, 17) run partly in the direction of the partition walls (6), but are partly directed obliquely to them. 4. Shaped body according to one or more of claims 1 to 3, characterized in that the folds (16, 17) have a polygonal, in particular a triangular shape. 5. Shaped body according to one or more of claims 1 to 4, characterized in that the opposing sides of the folds (16, 17) are glued, clamped or otherwise connected to one another. 6. Shaped body according to one or more of claims 1 to 5, characterized in that the partition walls (6) are directed perpendicularly to the bottom (7) of the compartments (2, 3), chambers or bowls. 7. Shaped body according to one or more of claims 1 to 5, characterized in that the partition walls (6) are V-shaped in cross section, with their two sides (11, 12) being inclined relative to the vertical and enclosing an angle (x) of up to about 60" at the bottom. 8. Molded body according to one or more of claims 1 to 7, characterized in that the outer walls of the compartments (2, 3), chambers or bowls form an angle (y) with the base (7) of the molded body (1) which is equal to or greater than 90'. 9. Shaped body according to one or more of claims 1 to 8, characterized in that its outer edges (8, 9) are bent outwards. 10. Molded body according to one or more of claims 1 to 9, characterized in that two molded body parts (28, 29) each having at least one compartment or the like are connected to one another along an adjacent upper edge by means of one or more hinges (30) and can be folded against one another with their open compartments (27). 11. Shaped body according to claim 10, characterized in that the hinges (30) are designed as tabs, webs or the like. 12. Shaped body according to claims 10 and/or 11, characterized in that the heights (H) of the outer walls (31) of both shaped body parts (28, 29) are equal. 13. Shaped body according to one or more of claims 1 to 12, characterized in that its dividing walls (35) are directed obliquely relative to the outer walls (34). 14. Shaped body according to claim 13, characterized in that it (33) is rectangular and the partition walls (35) run in the diagonal or diagonals of the shaped body (33). - 16 - 15. Shaped body according to claim 14 and/or 15, characterized in that it (33) is square and the partition walls (35) each enclose an angle (w) of 45° with the outer walls (34). 16. Shaped body according to one or more of claims 13 to 15, characterized in that in the region of each partition wall (35) φ a rectangular, in particular square part thereof is formed as a double fold (46). 17. Shaped body according to claim 16, characterized in that one fold of the part (46) runs in the longitudinal direction (40) of the partition wall (35) and the other fold runs transversely to this longitudinal direction (40). 18. Shaped body according to one or more of claims 1 to 17, characterized in that the intended folding lines are already rolled, scored, embossed, cut or punched into the shaped body material (13, 36) before it is deformed.