WO2004041677A1 - Hinge-lid packet for cigarettes - Google Patents

Abstract

The invention relates to a hinge-lid packet for cigarettes or other objects, said packet generally consisting of a packet element and a lid. In the closed position, the inventive packet has upright packaging edges, namely longitudinal edges (29, 30), in addition to transversal edges (31, 32, 33, 34). The longitudinal edges (29, 30) or transversal edges (31, 34) are embodied as projecting edges (35) with a rounded cross-section, or as rounded shoulders.

Description

Hinged box for cigarettes

description

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

Hinged lid packs are known worldwide as a cigarette pack. But folding boxes are also suitable as packaging for other products, such as chocolate and confectionery.

Folding boxes for cigarettes with rounded or beveled (upright) longitudinal edges of the box part and lid are known. With this shape of the pack edges, the hinged box is to be adapted to the outer contour of the pack contents, that is to say a cigarette group.

The invention has for its object to further develop and improve folding boxes for cigarettes and other products in such a way that the design provides increased dimensional stability against mechanical loads.

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

The projections and recesses are preferably circular in cross section. The projection has the cross-sectional shape of a three-quarter circle. The recess has the cross-sectional shape of a quarter circle.

This contoured design of the upright (four) longitudinal edges and / or the upper and lower transverse edges (to limit the front wall and bottom wall) significantly improves the dimensional stability of the pack against pressure loads. Depending on the arrangement of the projections or recesses, this applies to longitudinal and transverse loads. When the upright longitudinal edges are formed as a projection, the collar can be designed in a conventional manner with a rectangular collar edge. However, the collar expediently has a contour corresponding to the box part and lid in the region of the upright collar edges.

In a special way, a blank for the hinged box is also formed in the area of the bottom wall and end wall. This also applies to the production of the hinged box by folding the blank. This has groove-shaped embossments in the region of the contoured longitudinal edges and / or transverse edges, which can be applied during the manufacture of the blank in the factory or in the region of the packaging machine. The procedure is such that the blank has formed or embossed grooves with a semicircular cross section. Depending on the shape of the packaging edges to be produced (projection or recess), folding tabs are folded in one direction or the other, with the semicircular bead forming a (circular) projection with a reduced radius or a (quarter-circular) recess with an enlarged radius.

Further special features of the hinged box or of the cut for producing the same are explained in more detail below on the basis of exemplary embodiments. It shows:

1 is a hinged box with shaped upright longitudinal edges in the closed position and perspective view,

2 the pack of FIG. 1 with the lid open,

3 shows another embodiment of a hinged box in a representation corresponding to FIG. 1,

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

5 shows a partial cross-section analogous to FIG. 4 in the embodiment of FIG. 3, 6 shows a blank for a hinged box in the embodiment according to FIG. 1, FIG. 2 or FIG. 3, in an expanded representation,

7 shows an area of the blank according to FIG. 6, indicated by dash-dotted lines in FIG. 6, on an enlarged scale,

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

9 shows an intermediate folding position of part of the blank, namely the detail according to FIG. 8,

10 shows a representation analogous to FIG. 9 for the exemplary embodiment of FIGS. 1, 2,

11 shows a collar for a hinged box according to FIG. 1, FIG. 2 or FIG. 3 in a perspective view,

12 is a perspective view of a hinged box according to a further embodiment with designed transverse edges,

13 shows a spread blank for a hinged box according to FIG. 12,

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

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

Folding boxes consist of a (lower) box part 10 and a (upper) lid 11 as standard. Furthermore, a collar 12 is part of the folding box. Box part 10 and lid 11 are pivotally connected to one another via a rear joint line 13. Box part 10 and lid 11 are thus formed from a common blank (e.g. FIG. 6). In the present case, the package contains a cigarette group 48 which is surrounded by an inner blank 49. In the exemplary embodiments shown, the blank for the hinged box is designed such that delimited areas for forming a box front wall 14, bottom wall 15, box rear wall 16, lid rear wall 17, end wall 18 and lid front wall 19 follow one another. At the free edge of the lid front wall 19, a lid inner tab 20 is attached, which is folded against the inside of the lid front wall 19 in the finished hinged box.

To form box side walls 21 and lid side walls 22, folding tabs are attached laterally to the walls described, namely inner box side tabs 23 and outer box side tabs 24. Correspondingly, inner lid side tabs 25 and outer are in the area of the lid Lid side tab 26 provided. The box side tabs 23 and 24 overlap to form the box side walls 21. Accordingly, the lid side tabs 25, 26 are brought to overlap and connected to one another to form the lid side walls 22.

Further folding flaps are attached to the inner side flaps 23 of the box and to the inner side flaps 25, namely bottom corner flaps 27 on the one hand and front corner flaps on the other hand. In the finished hinged box, these folding tabs rest on the inside of the bottom wall 15 or on the inside of the end wall 18.

The side folding tabs 23, 24, 25, 26 are delimited from the walls 14, 16, 17, 19 by folding lines, namely by longitudinal folding lines which form upright packaging edges in the finished, rectangular packing (e.g. FIG. 1), and longitudinal edges 29, 30. These extend in the area of box part 10 and lid 11.

The box front wall 14, on the one hand, and the box rear wall 16, on the other hand, are delimited from the bottom wall 15 by transverse folding lines which, in the finished package, form horizontal transverse edges 31, 32, which are in any case transverse to the longitudinal edges 29, 30. Correspondingly, transverse edges 33, 34 are formed in the area of the cover to delimit the front wall 18 from the cover rear wall 17 on the one hand and the cover front wall 19 on the other hand.

The longitudinal edges 29, 30 on the one hand and the transverse edges 31..34 on the other hand are formed in a special way by material deformation or embossing. According to the 1 and FIG. 2, the upright longitudinal edges 29, 30 are formed as outwardly directed projections 35 which are round in cross section. The particular exemplary embodiment shown is of projections 36 which are partially circular in cross section, namely approximately in the form of a three-quarter circle. The projection 35 connects with an intermediate edge 36, 37 to the adjacent walls or folding tabs. The longitudinal edges 29, 30 formed as a part-circular projection 35 extend continuously in the region of the box part 10 and then in the region of the lid 11, specifically in the region of all four longitudinal edges 29, 30.

The blank (FIG. 6) is prepared for the production of a hinged box according to FIGS. 1 and 2. Advantageously, a deformation is carried out in the production of the blank in the region of the longitudinal edges 29, 30, in the present exemplary embodiment a semicircular embossing 46 (FIG. 8). Furthermore, the cut in the area of the bottom corner flaps 27 and the front corner flaps 28 is designed in a special way (FIG. 7). The relevant corner flaps 27, 28 are shortened by a punched-out area 38 which forms a distance between the relevant corner flap 27, 28 and the subsequent folding flap. Furthermore, the deformations or embossments 46 for forming the projections 35 are delimited at the ends by a transverse separating cut 39, which extends beyond the width of the projection 35 and thus a stress-free deformation of the projection 35 during the folding process relative to the bottom wall 15 or Front wall 18 allows.

The folding tabs of the box side walls 21 and lid side walls are dimensioned such that they overlap one another in a region between the associated projections 35, that is to say they extend from the intermediate edge 36 to the intermediate edge 37.

In the exemplary embodiment according to FIG. 3, the upright longitudinal edges 29, 30 of the hinged box are designed as recess 40. This is also arcuate or circular in cross section, with the dimensions of a quarter circle. Intermediate edges 36, 37 are directed outwards here.

A special feature is that almost identical blanks in the shape according to FIG. 6 can be used for the package shapes according to FIGS. 1, 2 on the one hand and FIG. 3 on the other hand. In any case, are to be manufactured Projections 35 or recesses 40, the molded, groove-like embossments 46 provided, namely in the manufacture of projections 35 with a bulge to the printed side of the blank and in the manufacture of recesses 40 with a bulge to the unprinted inside.

The protrusions 35 or recesses 40 are produced in a special, simple manner. The embossing 46, which is semicircular in cross-section, is brought into a position transversely to the adjacent packaging walls by forming a projection 35 or by folding a folding tab, namely in particular by folding the box side tabs 23, 24 and by the lid side tabs 25, 26 Return 40 deformed. According to FIG. 9, an embossing 46 from FIG. 8 results in a quarter-circular recess 40, the dimension (radius) of which is somewhat larger than the corresponding dimension of the embossing 46. The folding of the folding tabs mentioned to form projections 35 results in a reduction the dimensions of the three-quarter circle thus created (FIG. 10). With regard to FIG. 8, the embossing 45 is directed towards one or the other side of the blank, depending on the shape of the packaging edge to be produced.

The dimensions of the embossments 46 on the one hand and the projections 35 or recesses 40 on the other hand can be selected depending on the design goal. Dimensions of the projections 35 or recesses 40 with a radius r of 1.5 mm to 4 mm are advantageous.

The collar 12 can be designed for one or the other design of the hinged box with appropriate adaptation to the contour. The collar 12 consists, as usual, of the collar front wall 41 and lateral, cross-folded collar tabs 42. In between, upright collar edges 43, 44 are formed, which are assigned to the front longitudinal edges 29, 30. As shown in FIG. 11, on the left, the collar 12 for a hinged box according to FIGS. 1 and 2 has collar edges 43 which are designed as a projection with the cross-sectional shape of a three-quarter circle. The dimensions of the collar edges 43 or the projections are adapted to the dimensions of the projections 35 of the longitudinal edges 29, 30. In an analogous manner, the collar 12 according to FIG. 11 is formed on the right for a pack of the embodiment according to FIG. 3, namely with collar edges 44 which are designed as quarter-circle recesses. Because of the geometric interrelationships, an adapted configuration of the collar edges 44 is important in this pack (FIG. 3). 1 and FIG. 2, a conventional collar with collar edges that are rectangular in cross section can also be used.

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

The blank (FIG. 13) is designed in such a way that the transverse fold lines or transverse edges 31..34 are provided with a (approximately) semicircular bead 47 formed by deformation or embossing. When the box front wall 14 and the box rear wall 16 are folded relative to the bottom wall 15 and when the lid front wall 19 and the lid rear wall 17 are folded relative to the end wall 15, this forms round projections 35 with a cross section of a three-quarter circle (FIG. 14). Alternatively, the transverse edges 31..34 of the hinged box can be designed as recesses, analogously to the recesses according to FIG. 9. However, this embodiment assumes that the contents of the pack are adapted to the reduced inside dimensions of the hinged box.

A special feature is the design of the bottom corner flaps 27 and front corner flaps 28. These are formed on the basis of a punching 45 and on the basis of a reduced width compared to the adjacent box side flaps 23 or lid side flaps 26 so that the folded package appropriate corner flaps, at least in the middle between the shaped transverse edges 31..34. In this exemplary embodiment (FIG. 13) of the blank, the inner folding tabs 23, 25, 27, 28 are formed with the same width throughout, which is reduced compared to the folding tabs 24, 26. LIST OF REFERENCE NUMBERS

10 box part 38 punched out

11 Lid 39 separating cut

12 collar 40 recess

13 joint line 41 collar front wall

14 box front 42 collar rag

15 bottom wall 43 collar edge

16 box back wall 44 collar edge

17 lid rear wall 45 punching

18 end wall 46 embossing

19 Lid front wall 47 beads

20 inner lid flaps 48 cigarette group

21 box side wall 49 interior cut

22 Lid side wall

23 box side tabs i

24 box side tabs a

25 lid side tabs i

26 lid side tabs a

27 floor corner flaps

28 forehead corner flaps

29 longitudinal edge

30 long edge

31 transverse edge

32 transverse edge

33 transverse edge

34 transverse edge

35 head start

36 intermediate edge

37 intermediate edge

Claims

claims 1. Hinged box made of (thin) cardboard or similar packaging material, in particular for cigarettes, consisting of a box part (10), lid (11) and collar (12) (Upright) longitudinal edges (29, 30) and transverse edges (31, 32, 33, 34) running transversely to these, characterized in that the longitudinal edges (29, 30) and / or transverse edges (31, 32, 33, 34) are formed by deforming or embossing the packaging material as an outwardly directed projection (35) which is round in cross section or as an inwardly directed recess (40) which is round in cross section. 2. Hinged box according to claim 1, characterized in that as the projection (35) formed packing edges have a part-circular cross-section, approximately the shape of a three-quarter circle. 3. Hinged box according to claim 1, characterized in that the packing edges designed as a recess (40) have a part-circular cross-section, approximately corresponding to a quarter circle. 4. Hinged box according to claim 1 or one of the further claims, characterized in that all four upright longitudinal edges (29, 30) are formed as a projection (35) or as a recess (40). 5. Pack according to claim 1 or one of the further claims, characterized in that upper and lower transverse edges (31.34) for delimiting an end wall (18) on the one hand and a bottom wall (15) on the other hand are designed as projections (35) or as recesses (40). 6. Hinged box according to claim 1 or one of the further claims, characterized in that the collar (12) has collar edges (43, 44) which correspond to the longitudinal edges (29, 30) in terms of their design. 7. Hinged box according to claim 1 or one of the further claims, characterized in that when forming the transverse edges (31, 32, 33, 34) as a projection (35) or recess (40) corner flaps, namely bottom corner flaps (27) and / or front corner flaps (28) with a smaller width, such that the corner flaps (27, 28) can only be positioned between the transverse edges (31.34) designed as a projection (35) or recess (40). 8. Hinged box according to claim 1 or one of the further claims, characterized in that the projection (35) and / or recess (40) has a radius of 1.5mm to 4mm. 9. Hinged box according to claim 1 or one of the further claims, characterized by a blank which is unfolded with embossments (46) or beads (47) formed by deformation with (approximately) semicircular cross section in the region of the longitudinal edges (29, 30) and / or transverse edges (31, 32, 33, 34) is provided, projections (35) or recesses (40) being formed by folding folding flaps or walls while deforming the embossing (46) or beads (47), such that at given dimension of the embossing (46) or bead (47), a projection (35) has a smaller radius and a recess (40) has a larger radius than the embossing (46) or bead (47).