Hinge-lid packet for cigarettes

Translation of description of equivalent WO 2004041677 A1

Hinge-lid box for cigarettes

description

The invention relates to a hinge-lid box made of (thin) cardboard or similar packaging material, in particular for cigarettes, comprising a box part, lid and collar (upright) longitudinal edges and transverse edges cross.

Folding cartons - hinge-lid packs - are known worldwide as a cigarette pack. But for other products such as chocolate and confectionery Folded boxes are suitable as packaging.

are known hinge-lid boxes for cigarettes with rounded or chamfered (up right) longitudinal edges of the box part and lid. With this form of the pack edges hinge-lid box is to be adapted to the outer contour of the package contents, ie a cigarette group.

The invention has the object of further developing folding boxes for cigarettes and other products and to improve that increased dimensional stability is given to mechanical stresses by the design.

To achieve this object, the hinge-lid box according to the invention is characterized in that the longitudinal edges and / or transverse edges are formed by molding or embossing of the packaging material as an outwardly, round cross-section projection or as inwardly directed, round cross-section recess.

Preferably, the projections and recesses in the cross section are circular. The projection has the cross-sectional shape of a three-quarter circle. The return jump has the cross-sectional shape of a quarter circle.

By this contoured design of the upright (four) longitudinal edges and / or the upper and lower transverse edges (the limitation of the end wall and bottom wall) is achieved against pressure loads, a significant improvement in the dimensional stability of the package. This is - depending on the arrangement of the projections or recesses - for longitudinal and transverse loads. The collar may be formed when forming the upright longitudinal edges of a projection in a conventional manner with a rectangular collar edge. but expediently has the collar in the region of vertical collar edges to the box part and lid corresponding contouring.

In a special way, a blank for the hinge-lid box in the area of ​​the bottom wall and the end wall is formed. This also applies to the production of the hinge-lid box by folding the blank. This has in the region of the contoured longitudinal edges and / or transverse edges on grooved coins, which can be mounted in the manfacturing of the blank or in the packaging machine. Here the procedure is such that the blank molded or embossed grooves having a semicircular cross section. Depending on the shape of the produced pack edges (projection or recess) folding tabs in one or the other direction are folded device, wherein from the semicircular bead A (circular) projection with a reduced radius or a (quarter-circular) return produced with enlarged radius.

Other features of the hinge or the blank for producing dersel- ben be explained in more detail with reference to embodiments. It shows:

FIG. 1 is a hinge-lid box with molded upright longitudinal edges in the closed position and a perspective view,

FIG. 2 shows the pack according to FIG. 1 with the lid open,

Fig. 3 shows another embodiment of a hinge-lid box in an illustration corresponding to Fig. 1,

Fig. 4 is a partial cross-section IV-IV of the folding box according to FIG. 1 on an enlarged scale,

Fig. 5 is a Teiiquerschnitt analogous to FIG. 4 in the embodiment of Fig. 3, Fig. 6 shows a blank for a hinge-lid box in the embodiment of FIGS. 1, Fig. 2 or Fig. 3, in the deployed presentation,

Fig. 7 is a marked in Fig. 6 by dash area of ​​the blank according to FIG. 6 in an enlarged scale,

Fig. 8 is a partial cross-section VII-VII in Fig. 6,

FIG. 9 is an intermediate folding a portion of the blank, namely the detail according to FIG. 8,

FIG. 10 is a view analogous to FIG. 9, for the embodiment of FIG. 1, Fig. 2

FIG. 11 is a collar for a hinge-lid box according to FIG. 1, Fig. 2 or Fig. 3 in a perspective view,

FIG. 12 is a hinge-lid box according to another embodiment with shaped transverse edges, in a perspective view,

Fig. 13 shows a spread-out blank for a hinge-lid box according to FIG. 12,

FIG. 14 is a partial vertical section through the folding box according to FIG. 12 in the section plane XIV-XIV in an enlarged scale,

FIG. 15 is a partial section through the blank according to FIG. 13 in the section plane XV-XV.

Folding boxes consist default of a (lower) box part 10 and a (top) lid 11. Further, a collar 12 of the hinge-part tel. Box part 10 and lid 11 are pivotable about a rear hinge line 13 interconnected. Box part 10 and lid 11 from a common blank (z. B. Fig. 6) are thus formed. Package content is in this case a cigarette group 48, which is surrounded by an inner blank 49th The blank for the hinge-lid box is configured in the exemplary embodiments shown, that defined areas to form a box front wall 14, bottom wall 15, the box rear wall 16, lid rear wall 17, front wall 18 and lid front wall 19 in succession. At the free edge of the lid front wall 19 is a lid inner tab 20 is attached, which is folded in the finished hinge-lid pack against the inside of the lid front wall 19th

For the formation of box side walls 21 and lid side walls 22 folding tabs laterally to the described walls mounted, namely inner box-side tenlappen 23 and outer box side tabs 24 are correspondingly in the region of the lid inner lid side tabs 25 and outer lid side tabs 26 are provided. The box side tabs 23 and 24 overlap each other to form the nesting side walls 21. Accordingly, the lid side tabs 25, 26 is brought to overlapping and interconnected to form the lid side walls 22nd

To the inner box side tabs 23 and the inner lid side tabs 25 further folding tabs are provided, namely base corner tabs 27 on the one hand and the frontal corner tabs on the other. These folding tabs are located at in the finished hinge-lid pack at the inner side of the bottom wall 15 or on the inside of the end wall 18th

The lateral folding tabs 23, 24, 25, 26 are delimited by the walls 14, 16, 17, 19 by fold lines, namely by longitudinal folding lines which in the finished, cuboid package (z. B. Fig. 1) form upright pack edges, and Although longitudinal edges 29, 30. These extend in the region of the box part 10 and lid 11th

The box front wall 14 on the one hand, and the box rear wall 16 on the other hand are separated from the bottom wall 15 by transversely directed folding lines, which form in the finished pack horizontally extending, at least transversely to the longitudinal edges 29, 30 directed transverse edges 31, 32nd Correspondingly, in the area of ​​the lid 11 transverse edges 33, 34 are formed for delimiting the end wall 18 relative to the lid rear wall 17 on the one hand and the lid front wall 19 on the other.

The longitudinal edges 29, 30 on the one hand and the transverse edges 31..34 the other hand, are formed by material deformation or embossing in a special way. According execution approximately example of FIG. 1 and FIG. 2, the upright longitudinal edges 29, 30 are formed as outwardly directed, circular in cross-section projections 35. In the illustrated particular embodiment, is part-circular in cross-section projections 36, namely, approximately in the form of a three-quarter circle. The projection 35 includes respectively a two-edge 36, 37 of the subsequent walls and folding tabs. Trained as a part-circular projection 35 longitudinal edges 29, 30 extend in the region of the box part 10 and then through the area of ​​the lid 11, namely in the area of ​​all four longitudinal edges 29, 30th

The blank (FIG. 6) is prepared for the manufacture of a hinge-lid box according to FIG. 1 and FIG. 2. Advantageously, during manufacture of the blank in the region of the longitudinal edges 29, 30, a deformation is made in the present embodiment a semi-circular embossment 46 (Fig. 8). Furthermore, the cut in the base corner tab 27 and the front corner tabs 28 in specially adapted (Fig. 7). The respective corner tabs 27, 28 are shortened by a punched-out 38, which forms a distance of the respective corner tab 27, 28 from the subsequent folding tabs. Furthermore, the deformations or embossments 46 for forming the projections 35 at the ends by a transverse separating cut 39 are limited, which extends over the width of the protrusion 35, and thereby increasing a tension-free deformation of the projection 35 during the folding process with respect to the bottom wall 15 or end wall 18 permits.

The folding flaps of the box side walls 21 and lid side walls are such that they overlap each other in an area between the associated projections 35, thus extending from intermediate edge 36 to edge between 37th

In the embodiment of FIG. 3, the upright longitudinal edges 29, 30 of the hinge are formed as a recess 40th This also is arcuate or circular in cross section, with the dimensions of a quarter circle. Intermediate edges 36, 37 are directed to the outside here.

A special feature is that the package forms according to FIG. 1, Fig. 2 on the one hand and Fig. 3 on the other hand, almost matching blanks can be used in the form of FIG. 6. In any case, are in the range of manufactured The projections 35 or recesses 40, the molded-in, groove-like embossments 46 are provided, namely in the production of protrusions 35 having a convexity to the printed side of the blank and in the manufacture of recesses 40 with a curvature of the unprinted inside.

The preparation of the projections 35 or recesses 40 proceeds in a special, easily. The cross section (about) half-circle-shaped embossment 46 is formed by folding a folding flap, namely in particular by the folding of the box side tabs 23, 24 and by the lid side tabs 25, 26 in a position transverse to the adjacent pack walls to form projection 35 or return 40 deformed. Referring to FIG. 9 8 resulting from an embossment 46 of Fig. A quarter-circular recess 40, whose dimension (radius) is slightly larger than the corresponding dimension of the embossment 46. In the folding of said folding flaps to form projections 35 results in a reduction the dimensions of the so-created three-quarters circle (Fig. 10). As regards Fig. 8 is that the embossment 45 is directed to be manufactured depending on the shape of the package edge to the one or to the other side of the blank.

The dimensions of the indentations 46 on the one hand and the projections 35 and rear projections 40 on the other hand can be chosen depending on the design target. are advantageous dimensions of the projections 35 or recesses 40 with a radius r of 1, 5mm to 4mm.

The collar 12 may be designed for one or another version of the hinge under of corresponding adaptation to the contour. The collar 12 is, as usual, from the collar front wall 41 and lateral, cross-folded collar tabs 42. In between are upright collar edges 43, 44 are formed, which are assigned to the front longitudinal edges 29, 30th As shown in Fig. 11, shown at left, the collar 12 for a hinge-lid box according to FIG. 1 and Fig. 2 collar edges 43 which are formed as a projection with the cross-sectional shape of a three-quarter circle. The dimensions of the collar edge 43 and the projections are adapted to the dimensions of the projections 35 of the longitudinal edges 29, 30th Analogously, the collar 12 is formed as shown in FIG. 11, the right for a pack of the embodiment of FIG. 3, namely with collar edges 44, which are designed as a quarter-circular recesses. Because of the geometric interactions, in this pack (Fig. 3) a modified embodiment of the collar edges 44 important. In the package according to Fig. 1 and Fig. 2, a conventional collar with rectangular cross-section collar edges can be inserted.

Alternatively or additionally, some or all of transverse edges can be 31..34 formed with a deformation, either to form a projection 35 of the described embodiment or with a recess 40. Fig. 12 to Fig. 15 show details of a hinge-lid box, in of all four transverse edges 31..34 of the box part 10 and the lid 11 are formed with projections 35 which extend over the entire width of the folding box.

The blank (FIG. 13) is formed so that the transverse fold or transverse edges 31..34 semicircular with a formed by deformation or embossing, (about) bead 47 provided. This forms in the folding of the box front wall 14 and nesting the rear wall 16 relative to the bottom wall 15 as well as in the folding of the lid front wall 19 and lid rear wall 17 relative to the end wall 15 of bosses 35 having a cross-section of a three-quarter circle (Fig. 14). Alternatively, the transverse edges 31..34 of the hinge may be formed as recesses analogous to the recesses shown in FIG. 9. This embodiment assumes, however, that the contents are adapted to the reduced internal dimensions of the hinge-lid box.

A special feature is the formation of the base corner tabs 27 and end corner tabs 28. These are formed due to a punch 45 and due to reduced width compared with the adjacent box side tabs 23 and lid side tabs 26, that in the folded package the respective corner tabs fit, anyway, centrally located between the shaped transverse edges 31..34. In this embodiment (Fig. 13) of the blank, the inner folding tabs 23, 25, 27, 28 is formed with a continuously equal and opposite the folding flaps 24, 26 of reduced width. LIST OF REFERENCE NUMBERS

10 box part 38 punched

11 cover 39 separating cut

12 collar 40 return

13 hinge line 41 the collar front wall

14 box front wall 42 Collar tabs

15 bottom wall 43 collar edge

16 the box rear wall 44 of collar edge

17 lid rear wall 45 punching

18 end wall 46 embossing

19 lid front wall 47 bead

20 lid inner flap 48 cigarette group

21 box side wall 49 inner blank

22 lid side wall

23 box side tabs i

24 box side tabs a

25 lid side tabs i

26 lid side flaps a

27 base corner tabs

28 end corner tabs

29 longitudinal edge

30 longitudinal edge

31 transverse edge

32 transverse edge

33 transverse edge

34 transverse edge

35 projection

36 intermediate edge

37 intermediate edge