EP0728670A1 - Folded box with telescopic cover - Google Patents

Abstract

The cover part (18,22) is a separate part from the base (20) and cover (16). Several tab parts are fixed to the cover part, on which the base or the cover can be fitted. The cover part has a locking device holding its two ends opposed to each other. At one end of the cover part a first tab is available extending over a bending edge. At the other end of the cover part a second tab extends over a bending edge, at the free extending end of which via a further bending edge a tongue piece is fixed. The first tab can be folded around on the cover part.

Description

TECHNICAL AREA

The invention relates to a slip box as an alternative to fixed cardboard boxes. Such boxes are used for packaging chocolates and other comparatively high-quality sweets.

STATE OF THE ART

The boxes manufactured in the manufacturing company of a folding box are distributed as a spatial structure to the respective customer, i.e. sent to the filling company. Folded boxes regularly have a polygonal layout. Due to their construction, it is not possible to send the cut-outs for a slip-up box lying flat.

PRESENTATION OF THE INVENTION

Based on this prior art, the object of the invention is to provide an economically improved folding folding box.

This invention is given by the features of the main claim. The folding box according to the invention is accordingly characterized in that its bottom part and also its lid part are made in two parts. This means that the jacket part is a separate part from the bottom part or cover part. In this case, several tab parts are firmly present on the jacket part, by means of which the jacket part can be firmly attached to the bottom part or cover part. Such a folding box has several advantages. On the one hand, the casing part and the cover or bottom part to be connected to the casing part can be separated from one another Cutting shapes are made available to the customer. This enables the parts to be shipped cost-effectively. On the other hand, in cases where the folding box shape is already manufactured by the manufacturer and the folding box box is made available to the customer as a spatial structure, savings can be made in terms of material consumption and, moreover, a more visually appealing folding box box can be made available. The folding box can be largely made without visible cut edges. The material saving is present when a slip box is manufactured with a so-called protruding floor. With such a cover or base part, the base surface or cover surface protrudes like a hat brim. In contrast to the prior art, only one base area is required for such a cover or base part and not, as in the prior art, two base areas for each cover part or base part. In addition, an everting box can now also be produced with an at least partially rounded plan. A very important advantage is the possibility of being able to produce round boxes in the floor plan.

The man part of the folding box according to the invention, which can be identical both on the bottom part and on the lid part or can be present in a modified form according to the invention, can be brought into its collar shape either in the manufacturing company or at the customer. This means that the jacket part can be equipped at its opposite two ends with a locking device which allows the two ends to be firmly connected to one another. An embodiment of such a locking device is specified in the subclaims and in the exemplary embodiments.

In addition, various embodiments for the collar part or jacket part are specified in the features of the subclaims and in the exemplary embodiments.

The above-mentioned arc-shaped outline shape of the slip box and the associated arc-shaped "bending shape" of the casing part can be made much easier by means of transverse grooving in the casing part. As a result, there is practically no longer any risk that surface parts of the jacket part bulge.

The jacket part can butt against the bottom part or cover part, but it is also possible for the bottom part or cover part to butt against the jacket part. As a result, the cover part or base part can protrude from the cover part in the manner of an eaves projection, on the other hand, the cover part can also enclose the cover part or base part as in an attic.

Due to the design options, the bottom part and the cover part can also be easily constructed in two layers. The envelope flaps of the collar part can then enclose the cover layer in the bottom part and cover part in a visually appealing manner. This enables very rigid flat structures to be produced.

Further advantageous refinements and developments of the invention can be found in the features further specified in the subclaims and in the exemplary embodiments below.

BRIEF DESCRIPTION OF THE DRAWING

Fig. 1

eine perspektivische Ansicht eines Deckelteils und Bodenteils einer Stülpfaltschachtel nach der Erfindung,

Fig. 2

eine perspektivische Ansicht der Einzelteile vom Deckelteil und Bodenteil gemäß Fig. 1,

Fig. 3

einen Schnitt durch das Deckelteil und das Bodenteil gemäß Fig. 1,

Fig. 4

eine perspektivische Ansicht vom Mantelteil des Deckelteils nach Fig. 1 und 2,

Fig. 5

eine perspektivische Teilansicht des Mantelteils gemäß Fig. 4,

Fig. 6

eine Draufsicht auf die Innenseite des Zuschnitts vom Mantelteil gemäß Fig. 4,

Fig. 7

eine perspektivische Ansicht einer eine teilweise runde Grundfläche besitzenden anderen Stülpfaltschachtel nach der Erfindung,

Fig. 8

eine Draufsicht auf das Deckelteil der Stülpfaltschachtel gemäß Fig. 7,

Fig. 9

eine Draufsicht auf den Zuschnitt für das Mantelteil gemäß Fig. 7,

Fig. 10

eine Seitenansicht des zusammengefalteten Mantelteils gemäß Fig. 7 und 9,

Fig. 11

eine perspektivische Ansicht eines weiteren Bodenteils nach der Erfindung,

Fig. 12

eine Draufsicht auf den Zuschnitt für das Mantelteil des Bodenteils gemäß Fig. 11.

The invention is described and explained in more detail below with reference to the exemplary embodiments shown in the drawing. Show it:

Fig. 1

2 shows a perspective view of a lid part and bottom part of an everting box according to the invention,

Fig. 2

2 shows a perspective view of the individual parts of the cover part and base part according to FIG. 1,

Fig. 3

2 shows a section through the cover part and the base part according to FIG. 1,

Fig. 4

2 shows a perspective view of the jacket part of the cover part according to FIGS. 1 and 2,

Fig. 5

3 shows a perspective partial view of the jacket part according to FIG. 4,

Fig. 6

3 shows a plan view of the inside of the blank from the jacket part according to FIG. 4,

Fig. 7

FIG. 2 shows a perspective view of another inverted folding box according to the invention, which has a partially round base,

Fig. 8

7 shows a plan view of the cover part of the everting folding box according to FIG. 7,

Fig. 9

7 shows a plan view of the blank for the jacket part according to FIG. 7,

Fig. 10

7 shows a side view of the folded jacket part according to FIGS. 7 and 9,

Fig. 11

a perspective view of a further base part according to the invention,

Fig. 12

11 shows a plan view of the blank for the jacket part of the base part according to FIG. 11.

WAYS OF CARRYING OUT THE INVENTION

1 consists of a cover part 12 and a base part 14. The cover part 12 has a flat cover 16 and a casing 18 framing the same. The base part 14 is constructed in a similar manner. This has a flat bottom 20 and also a jacket 22 which frames the bottom 20.

While the cover 18 of the cover 18 protrudes upward above the cover 16 so that the cover 16 abuts against the cover 18 from the inside, the cover 22 of the base part 14 sits on the bottom 20. In the case of the base part 14, the base 20 thus protrudes like a roof over the jacket 22.

Both cover part 12 and bottom part 14 are octagonal in plan. The lid part 12 is slightly larger in diameter than the bottom part 14, so that it can be pushed onto the bottom part 14 from above. In the assembled state, the jacket 18 of the cover part 12 lies against the jacket 22 of the bottom part 14 from the outside.

2 shows the individual parts from which the cover 12 and the base part 14 are composed. While the cover 16 consists of a single-ply flat material, 20 side regions in the form of envelope flaps 24, 26 are turned up at the bottom on the bottom 20 and fastened there. As a result, the side edge of the base 20 is designed in the form of a bending edge 28. This means that the bending edge 28 and thus the visible side surface of the Bottom 20 is formed in material as well as the surface area of the bottom 20. In contrast, the side edge of the cover 16 is in the form of a cutting line 30. This is therefore not visually disturbing and does not impair the appearance of the cover part 12, since the cover 16 butts against the inside of the casing 18, as shown in FIG. 1. The section line 30 is therefore not recognizable on the cover part 12. In contrast, the side edge of the base 20, which is designed in the form of the bending edge 28, can be seen optically in the base part 14.

The jacket parts 18, 22 are made from a one-piece blank. The two blanks 32, 34 which form the jacket 18, 22 are shown in section in FIG. 3.

In the blank 32, which forms the jacket 18, there is a central surface part 40, to which a surface part 44 is attached via a bending edge 42. Opposite the surface part 44, a further surface part 48 is also provided in one piece on the central surface part 40 via a bending edge 46. In Fig. 3 it can be seen that first the surface part 44 is turned over to the central surface part 40 and then the surface part 48 is turned over to the surface part 44. The two surface parts 44, 48 are then connected to one another, which can be effected by means of an adhesive 90 (FIG. 6).

A tab part 52 lies in one piece on the surface part 48 via a further bending edge 50. This tab part 52 forms the support for the lid 16. Since the bending edge 50 of the tab part 52 is lower in cross section than the bending edge 42, the lid 16 abuts the flat part 44 (FIG. 3).

In the blank 34, which forms the jacket 22, there is also a central surface part 60, on which on the one hand a surface part 64 via a bending line 62 and on the other hand via a bending line 66 each appends a surface part 68. By overlapping the two surface parts 62 and 68 and, for example, gluing the two surface parts to one another, a cross-sectional shape which is comparable to the blank 32 but is upside down is produced. On the inner surface part 68, a flap part 72 is attached via a bending edge 70, which, like the flap part 52, forms a support for the base 20 when the blank 32 is cut. Since the bending edge 70 of this tab part 72 is present at the same height as the bending line 62, the base 20 can rest both on the tab part 72 and on the bending line 62. The jacket 22 can therefore sit fully in the edge region of the bottom 20 (FIG. 3). The jacket 22 is seated on the flaps 24 and 26 of the bottom 20. The bending edge 28 of the bottom 20 is visible from the side. In cross section, no optically unsightly cutting lines, such as the cutting line 30, are visible for both the jacket 22 and the lid 16.

Both the jacket 18 and the jacket 22, which frame the cover 16 on the one hand and the bottom 20 on the other hand circumferentially, are each produced from a one-piece blank. 4, the blank 32 for the jacket 18 is shown in perspective in the area of the mutual attachment of its two ends. For this purpose, there is a tab 71 on the end of the last of the central surface parts 40.1, which is connected in one piece to the surface part 40.1 via a bending edge 73 (FIG. 5). The free edge 74 of the tab 71 opposite the bending edge 73 is guided around a cutout 76 in its central region, so that the edge 74 has a U-shaped plan shape in its central region.

At the opposite end of the blank 32 of the jacket 18, a tab 80 hangs on the end face of the last surface part 40.8 via a bending edge 82. A tongue piece 86 is attached to this tab 80 via a further bending edge 84. The The base area of the tongue piece 86 corresponds approximately to the cutout 76 of the tab 71.

The assembly of the two ends of the jacket 18, i.e. of the surface parts 40.1 and 40.8 takes place in the following way:

On the surface part 40.1, the tab 71 is folded over on the inside of the surface part 40.1 and glued there. Subsequently, the surface part 44.1 is turned inwards and then the opposite surface part 48.1 is turned over onto the surface part 44.1 and glued there. The tab part 52.1 attached to the surface part 48.1 then projects approximately perpendicularly from the tab part 48.1. At the opposite end of the jacket 18, the surface part 40.8 is first turned over onto the surface part 40.8 and the surface part 48.8 is turned over onto this and fastened to the surface part 40.8. In this surface part 40.8, too, the tab part 52.8 projects inward approximately at a right angle from the surface part 48.8.

The tongue piece 86 is then turned over onto the tab 80. The tab 80 stands away from the tab part 40.8 on the end face. The tab 80 is then inserted into the gap 88 which is present between the surface part 44.1 and the surface part 40.1. The tongue piece 86 lies with its free edge 89 against the U-shaped free edge 74 of the tab 71. The tongue piece 86 thus abuts the tab 71. The tongue piece 86 and tab 71 lie in the installed state of the two surface parts 40.1, 40.8 in the same Level. The displacement path of the tongue piece 86 into the tab 71 is illustrated in FIG. 4 by the arrow 92.

The blank 32 for the jacket 18 is shown in FIG. 6. One recognizes the several surface parts 40.1 to 40.8, to which eight surface parts 44.1 to 44.8 each on one side over a bending edge 42 and on the opposite side via one Attach bending edge 46 surface parts 48.1 to 48.8. A tab part 52.1 to 52.8 is attached to the surface parts 48.1 to 48.8.

The tab 71 with its free edge 74 shaped U-shaped in the middle region hangs on the end face of the flat part 40.1 via a bending edge 73. On the opposite side, the tab 80 is in one piece on the last flat part 40.8 via the bending edge 82. The tongue piece 86 hangs in one piece on the tab 80 via the bending edge 84.

An adhesive layer 90 is present on each of the surface parts 48. An adhesive layer 93 is also applied to the tab 71.

To assemble the jacket 18, the tab 71 is first folded over onto the surface part 40.1 on the blank 32 and fastened there by means of the adhesive layer 93. Subsequently, the lateral surface parts 44.1 to 44.8 are turned over onto the central surface parts 40.1 to 40.8 and then the opposite other surface parts 48.1 to 48.8 are also turned over on these surface parts and fastened via the adhesive layers 90. The blank 32 is then shaped into the jacket 18, as can be seen in FIG. 4. Then the two surface parts 40.1, 40.8 can then be joined together, as already described above. Subsequent placement of the cover 16 creates the cover part 12.

The base part 14 is produced in a comparable manner. In the present example, envelope flaps 24, 26 are glued onto the bottom surface and only then is the jacket 22 put on, as described above and can be seen in FIGS. 2 and 3.

The cover part 12a shown in FIG. 7 and the base part 14a are each triangular in plan with an outer wall curved on one side. The construction is similar to that given above for the cover part 12 and the bottom part 14. Thus, the cover part 12a has a cover 16a, which has a central cutout 96, which is closed by an optically transparent film 98. As a result, the inside of the corresponding folding box can be seen through the lid in the closed state.

The casing 18a or 22a, which laterally frames the cover part 12a and bottom part 14a, is composed of three casings, of which the casing has a transverse groove 100 in region B (FIG. 8). The transverse groove 100 consists of parallel, spaced-apart transverse grooves 102 which are present on the surface parts 68a, which correspond to the surface parts 68 of the casing 22 (FIG. 3). These surface parts 68a hang over a bending line 66a on central surface parts 60a. The surface part 68a with its transverse grooves 102 is provided in one piece. A plurality of tab parts 72a hang on the surface part 68a via a bending edge 70a. In contrast to the surface part 68a, the tab parts 72a are provided in multiples in order to enable the parts 72a to be bent at right angles from the curved surface part 68a and to be fixed on the floor 20a (FIG. 7). In the connection area between adjacent tab parts 72a there are longer transverse grooves 102.1 in the surface part 68a compared to the transverse grooves 102. This enables a better bending of the surface part 68a in the area of the tab parts 72a. For optical reasons, the other bending edge 62a opposite the bending edge 66a on the surface part 60a is in one piece. The surface part 64a hanging over this bending edge 62a is also in one piece.

In the present case, the transverse grooves 102 and 102.1 with their domed, dome-like curvature are on the inside of the cover part 14a and thus on the inside of the jacket 22a (FIG. 10). The visible outside of the jacket 22a is formed by the surface part 60a. The transverse grooves 102 and 102.1 are therefore not visible from the outside. The line-like or strip-like protrusions of the transverse groove 100 can be seen from the inside of the cover or base part.

In the rectilinear areas C and D (FIG. 8) adjoining the curved area B, the cut shapes of the two shells there are comparable to the cut shape shown in FIG. 6.

In the present example, the three sheaths 22a are closed in the area of the three corners and thus in each case in the joint area between the areas B, C and D. The bending edge 106, for example, between the areas C and D corresponds in effect to the bending edge 82 of the sheath 18 (FIG 4).

The base part 14b shown in FIG. 11 differs from the box shapes described above in particular by its regionally negative shape for its jacket 18b. For example, an inwardly directed tip 112 is present on the arch opposite the tip 110 of the heart shape. In the area of this tip 112, the circumferential jacket 18b has an inward curvature. This arch is pointed in the present case. Instead of the one positive tip 110 and negative tip 112, several tips 110 and / or 112 could also be formed in other shapes. In this way, any outline shapes of boxes could be created as far as possible.

The jacket 18b, the cut of which is shown schematically in FIG. 12, has the closure described above, which consists of an upper tab 80b with an attached tongue part 86b and an opposite tab part 71b having a curved edge 74b. The index b is intended to clarify that the shape of the individual parts is not of the same area as the corresponding parts, for example in accordance with FIG. 9.

Between the tab part 71b and the tab 80b there are two surface parts 60b which are connected to one another via a bending line 66b. On the right side of the surfaces 60b in FIG. 12 there are surface parts 68b in the central region, which in turn are equipped with a groove 100 with transverse transverse grooves 102 arranged parallel to one another.

12, the transverse grooves 102 are embossed into the surface parts 86b from the underside of the sheet, so that the dome-like curvatures of these grooves 102 can be seen in the plan view shown in FIG.

In each of the upper and lower areas, adjacent to the surface parts 68b, there is a surface part 68c attached laterally via a bending line 66b to the corresponding surface part 60b. These two surface parts 68c do not contain any transverse grooves 100.

Tab parts 72b each hang on the surface parts 68b and 68c, as already described above.

On the opposite side, a surface part 64b is attached to each of the two surface parts 60b via a bending line 62b.

Between the two surface parts 64b and the tab parts 72b which are adjacent with respect to the middle bending line 66b a gap 114, 116 is present in each case. These two columns 114, 116 serve to be able to form the negative peak 112 shown in FIG. 11. The planned gap 114 thus prevents the surface parts 68b from tearing open in the region of the negative tip 112 on the inside of the jacket. In the area of the negative tip 112, the inner layer of the jacket is namely overstretched. The outer layer is kinked on the outside of this tip 112, which is made possible by shaping the bending line 66b between the surface parts 60b in an elegant manner.

In area C (FIG. 11) there are no transverse grooves 100 in the jacket. In area C, the heart shape of the jacket 10 has no curvature, but is evenly present. For this reason, the surface parts 68c present there are designed without transverse grooves 100.

The bottom part shown in FIG. 11 can be closed with a corresponding cover part. The outer part of this cover part would then be somewhat larger than the base part in order to enable mutual insertion. The interior enclosed by the jacket 14b can be filled with a base 20 or cover 16. This bottom or lid can then be glued to the tab parts 72b, as is shown schematically with the tab parts 52 and 72 in FIG. 3.

The largely contoured base part or cover part can contain one or more coats. Several coats can be used with longer contours so as not to make the individual coat too long. Several coats can then be plugged together so that several closures would then be distributed over the circumference of the corresponding base or cover part.

Claims (14)

Folded box (10) with - a bottom (20), a cover (16) and on these parts (16, 20) respectively fixed shell parts (18, 22) which can be put into one another,
characterized in that - At least one belt-like jacket part (18, 22) is provided for the bottom (20) or cover (16), - The casing part (18, 22) is a separate part from the bottom (20) or cover (16), - A plurality of tab parts (52) on the casing part (18, 22) are fixed, on which the bottom (20) or the cover (16) can be firmly attached. Foldable box according to claim 1,
characterized in that - The jacket part (18, 22) is equipped at its opposite two ends with a locking device (71, 86) holding the two ends firmly together. Foldable box according to claim 2,
characterized in that - At one end of the jacket part (18) over a bending edge (73) there is a first tab (71) projecting, - At the other end of the casing part (18) over a bending edge (82) there is a second tab (80) projecting, on the free, projecting end of which a tongue piece (86) is fastened via a further bending edge (84), - The first flap (71) can be folded over onto the jacket part, so that by joining the two ends of the jacket part at the end, the tongue piece (86) is hooked onto the first flap (71). Foldable box according to claim 3,
characterized in that - the free edge (74) of the first tab (71) partially surrounds a cutout (76) in this tab (71), - In the superimposed state of the two ends of the jacket part, the tongue piece (86) with its free edge (89) can be butted against the first tab (71). Foldable box according to claim 4,
characterized in that - The tongue piece (86) can be butted against the free edge (89) of the first tab (71). Foldable box according to one of the preceding claims,
characterized in that - The jacket part has an elongated surface part (40), - a further surface part (44, 48) is attached on both sides to the surface part (40) via a bending edge (42, 46), - attach to one another flat part (48) laterally next to each other, separate tab parts (52) via another bending edge (50), - The further surface parts (44, 48) are mutually foldable onto the surface part (40) in such a way that the respective tab part (52) of the one surface part (48) is present, projecting away from this surface part (48). Foldable box according to claim 6,
characterized in that - The other surface parts (44, 48) to be attached to each other, such as in particular to be glued to each other. Foldable box according to claim 6 or 7,
characterized in that - A transverse creasing (100) is present in at least one of the two surface parts. Foldable box according to claim 8,
characterized in that - The bulges created by the transverse grooving (100) are present on the inside of the jacket of a cover or bottom. Foldable box according to one of the preceding claims,
characterized in that - The jacket part is butting against the bottom (20) and / or against the cover (16). Foldable box according to one of the preceding claims,
characterized in that - The bottom (20) and / or the cover (16) is butt-abutting on the casing part. Foldable box according to one of the preceding claims,
characterized in that - On the bottom (20) and / or lid (16) there are envelope flaps (24, 26) on the end face, which are fastened by turning over onto the bottom 20 or lid (16). Foldable box according to one of the preceding claims,
characterized in that - The bottom and / or cover is at least partially formed in two layers. Foldable box according to claim 12,
characterized in that - The envelope flaps (24, 26) of the base or cover are fastened to the second layer of the base or cover by folding over them.

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