EP1361988B1 - Cigarette packet and cut sheet - Google Patents

Abstract

The invention relates to cut sheets (100) and cigarette packets produced therefrom with rounded or chamfered edges, whereby the rounded or chamfered edges are produced by means of scored lines (180) in the cut sheet material.

Description

The invention relates to a box, in particular for cigarettes, in which one or more of the edges are rounded or beveled, as well as blank sheets for their production.

Cigarettes are usually brought into the market either in soft-cup packages or in hard-pack packages, for example in hinged-lid boxes or hinged-lid boxes, but also in so-called rigid-soft packages without hinged lids. For hard beaker packs, it is also known to round off or bevel the corners of the boxes. Thus bswp. the EP-A-0 205 766 Hinge-lid boxes, the 4 longitudinal edges are all rounded, so that on the one hand less material is necessary for the production of the cigarette box and the box on the other hand is better in the hands of the consumer.

To achieve rounded or chamfered edges, the blank sheet from which the cigarette box is made is grooved at the edges of the cigarette box forming areas. According to the US 4,955,531 For example, the grooves can be produced in a mold in which the blank sheet is pressed in at the relevant points by a groove body. On the opposite side there is a creasing channel into which the material of the blank sheet can be pressed. In the case of parallel grooves, a wave-shaped cross-section results in accordance with the method described. When folding the blank sheet so processed then automatically along the grooves form the (in several grooves) round or (with two grooves) beveled edges of the cigarette pack.

The disadvantage here, however, is that due to the inherent rigidity and the restoring forces of the packing material, the bonding for the production of the cigarette pack is not without problems. This is usually done on overlapping areas of the blank sheet that form the side walls of the box. Due to the rounded or bevelled edges, these overlapping areas are significantly reduced compared to a normal hinge-lid box, so that only a limited amount of adhesive can be applied. The result is that the machine production is slowed down because it takes longer to wait until the relatively small amount of adhesive has dried well, otherwise the box would reopen due to the restoring forces of the material.

This is especially pronounced when using wide web carton or paper for making the hinge eyelid carton. In paper or board making, the product-forming material is deposited on a fast-moving belt. This causes the long fibers in the material to orient preferentially in the longitudinal direction. Depending on whether the blank sheet is later cut longitudinally or transversely from the finished material web, the long fibers in the blank sheet are transverse to the longitudinal axis of the blank sheet (Wide web) or arranged along the longitudinal axis of the blank sheet (narrow web). The orientation of the fibers transversely to the longitudinal direction of the wide web blank sheet causes a good bendability about the transverse axis, but a poor bendability about the longitudinal axis. The restoring forces for the lateral bonding are therefore stronger than in narrow-web blank sheets, where due to the reversed position of the long fibers in the material, the conditions are exactly the other way around .. On the other hand, however preferred folding carton sheets are preferably used for folding cartons, as they the stability of the Lids (no slate closure, no easy tearing off of the lid), the stiffness of the pack by a higher resistance in the transverse direction and the flat position of the pack, ie the least possible curvature of the pack, clearly favor the use of narrow web materials.

The DE-U-71 20 716 discloses a cigarette package of a blank made of cardboard, consisting of a bottom part, hinged to the front and rear wall and side walls and connecting straps, and wherein between the front wall and the side walls and between the rear wall and the connecting straps a crowd of mutually parallel grooves and / or scribe lines is arranged and the bottom corners are rounded. Wide web carton or paper as the material for the blank carton is not disclosed.

The object of the invention is therefore to avoid the disadvantages described above when using wide-web blank sheets.

This object is achieved by a carton made from a blank sheet of foldable material, the carton part having a carton front wall, a carton rear wall, carton side walls and a carton bottom and one or more edges of the carton through respective two or more adjacent substantially parallel score lines in the carton foldable material is rounded or chamfered, characterized in that the foldable material is wide web carton or wide web paper, and by a blank sheet for making the carton, ie a blank sheet of foldable material having a first major surface field with left and right first side face panels, wherein at the upper edge of the first main surface field, a bottom field and at the upper edge of the bottom field, a second main surface field with a left and right second. Side panel joins, and with one or more folding area (s) with two or three a plurality of substantially parallel scribe lines, characterized in that the foldable material is wide web carton or wide web paper, and that the fold region (s) is between one or more of the side surface panels and one or both major surface panels or between one or both Main surface fields and the bottom field is / are arranged.

By folding the blank sheet described above, a hard cup package is obtained which consists only of a box part into which a cigarette group wrapped in an innerliner can be inserted. Typically, the box size is sized so that the cigarette group sits firmly in the box and protrudes slightly at the top, open end of the box to allow the consumer to open the box and remove the cigarettes.

As a rule, however, the box will next to the box part have a lid part, which has a lid front wall, a lid rear wall, lid side walls and a lid top and is hinged to the lid rear wall to the box rear wall, so that a conventional hinged eyelid box results.

In order to obtain this conventional hinge-lid box, the blank sheet described above has additional fields, namely, following the second main surface field, a third main surface field with a left and right third side surface field, wherein at the upper edge of the third main surface field, a top field and the top edge of the top panel adjoins a fourth major surface panel with left and right fourth side panel panels, and wherein the blank sheet has one or more fold regions each having two or more substantially parallel scribe lines between one or more of the third and fourth side panel panels and the third and / or fourth main surface field or between the third and / or fourth main surface field and the top field is / are arranged.

Preferably, folding areas are located between the first to fourth side surface panels and the first to fourth main surface panels or between the first to fourth main panel panels and the bottom panel and the top panel.

Advantageously, in addition to the described fields, the blank sheet additionally has left and right second side surface field end flaps on the lower edge of the left and right second side surface panels, and left and right third side surface field end flaps on the upper edge of the left and right third side surface panels. These Seitenflächenflächenfeldendlappen serve to reinforce the bottom and the lid of the finished box.

Preferably, at the upper edge of the fourth main surface panel is a reinforcing panel, which is glued to the inside of the fourth main surface panel during manufacture of the box and also serves for reinforcement.

In the scribe lines, the thickness of the packing forming material is reduced by a scoring knife. For this purpose, the blank sheet is placed on a smooth surface and processed with a scoring knife, so that it can come next to a compression and the removal of material. Depending on the shape of the scoring knife bswp arises. a v or u-shaped cross-section. Since the pad does not have channels as known from the prior art at the points opposite the scoring blade, but rather has a smooth surface, there is a reduction in thickness and not, as is known in the art, deformation without a reduction in thickness. The side surface fields of this cut-sheet provided with scribe lines are then first bent to produce the cigarette pack by 90 °, the restoring forces are significantly lower, especially when using wide web materials, so that in the machine production, a faster bonding is possible.

The degree of thickness reduction depends on the material used, but will typically be 10 to 80% of the total thickness, preferably 20 to 70%, most preferably 40 to 50%.

The scribe lines are preferably on the side of the blank sheet forming the inside in the finished box. This has the further advantage of a more appealing visual appearance of the finished box. In the boxes with round edges of the prior art, the grooves are always visible at the edges. This can be avoided with the present invention. As far as the scribe lines are on the inside of the boxes, the consumer's visible exterior of the box is unprocessed and shows a smooth surface.

By the number of scribe lines and their distance from each other, the extent and type of rounding can be determined. Preferably, 6 to 8, in particular 7 scribe lines, which are at a distance of about 1 mm from each other are per folding area. When folded, a box with rounded edges is created; The radius of the rounding then corresponds approximately to that of a commercial cigarette. Also preferred are two creasing lines per folding area, which are at a distance of 6 to 8 mm, in particular about 7 mm. When folding then creates a box with bevelled edges.

The scribe lines preferably extend over the entire length and / or width of the box, so that completely round or beveled transverse and / or longitudinal edges are obtained.

As foldable materials for the blank sheets and the cigarette boxes, wide web papers and cartons can be used in which the scoring lines make particularly positive effects on the restoring forces and thus on rapid processing.

Particularly preferred are all 4 longitudinal edges of the box, i. the longitudinal edges of the box part and the longitudinal edges of the lid part (if any), rounded or chamfered, but not the transverse edges. In entspander embodiment of the blank sheet, however, it is also possible that only 2 longitudinal edges (adjacent or diagonally opposite) or in addition to the longitudinal edges of the transverse edges are rounded and / or bevelled.

Furthermore, it is preferred that the transverse edges between box bottom, box front wall and box back wall and, if a lid portion is present, the transverse edges between lid front wall, lid back wall and lid top are rounded or chamfered, but not the longitudinal edges of the box, i. the longitudinal edges of the box part and, if present, the longitudinal edges of the lid part.

The preparation of blank sheets is done in a known manner. That The blank sheets are unwound from webs of blank sheet material stored on rolls and printed as wide web cut sheets. It follows. usually one operation, in which the blank sheets are treated by a scoring knife in the manner described and simultaneously punched and / or cut and possibly embossed. By customary folding and gluing on the side surfaces, the finished cigarette box is then obtained by machine, which usually contains a cigarette group encased in an innerliner. In hinge-lid boxes according to the invention, a conventional collar member is also normally used, which in the opened box protrudes somewhat from the inside of the box front wall and has a recess which allows the cigarettes contained in the box to be gripped.

Fig. 1

einen Querschnitt durch einen erfindungsgemäßen Zuschnittsbogen 100 mit einer Ritzlinie 180,

Fig. 2

einen Querschnitt durch einen erfindungsgemäßen Zuschnittsbogen 100 mit einer anderen Ausführungsform einer Ritzlinie 180,

Fig. 3

einen Querschnitt durch einen Zuschnittbogen des Stands der Technik,

Fig. 4

einen erfindungsgemäßen Zuschnittbogen 100 zur Herstellung einer erfindungsgemäßen Zigarettenschachtel 10 vom Hinge-Lid-Typ,

Fig. 5

eine erfindungsgemäße Zigarettenschachtel 10 vom Hinge-Lid-Typ, deren 4 Längskanten abgerundet sind,

Fig. 6

eine Querschnitt der Zigarettenschachtel 10 der Fig. 5,

Fig. 7

einen Querschnitt durch eine Zigarettenschachtel 10 mit abgeschrägten Kanten sowie

Fig. 8

einen erfindungsgemäßen Zuschnittbogen 100 zur Herstellung einer erfindungsgemäßen Zigarettenschachtel 10 ohne Deckelteil.

The invention will be explained below with reference to an embodiment. Show it:

Fig. 1

a cross section through a blank sheet 100 according to the invention with a scribe line 180,

Fig. 2

3 shows a cross section through a blank sheet 100 according to the invention with another embodiment of a score line 180,

Fig. 3

a cross section through a blank sheet of the prior art,

Fig. 4

a blank sheet 100 according to the invention for the production of a Hinge-Lid-type cigarette pack 10 according to the invention,

Fig. 5

a hinge box 10 of the hinge-lid type according to the invention, whose 4 longitudinal edges are rounded,

Fig. 6

a cross section of the cigarette pack 10 of FIG. 5,

Fig. 7

a cross section through a cigarette pack 10 with bevelled edges and

Fig. 8

a blank sheet 100 according to the invention for producing a cigarette box 10 according to the invention without a lid part.

1 shows a cross section through a blank sheet 100 with a score line 180 with a V-shaped cross section. The cross-section of the scribe line 180 depends on the scoring knife used and may, for example, also have a sharper angle than in FIG. 1 or be rectangular, as shown in FIG.

For comparison, a groove known from the prior art is shown in cross-section in Fig. 3, in which it does not come as in the invention to a reduction in thickness.

4 shows a blank sheet 100 for producing a cigarette packet 10. The main surface areas 122, 124, 142 and 144 are shown, which in the finished cigarette box form the box front wall 22, the box rear wall 24, the lid front wall 42 and the lid rear wall 44. You can also see the ground field 130 and the top field 150 and the side surface panels 126, 127, 128, 129, 146, 147, 148 and 149 corresponding in the finished box to the box bottom 30, the lid top 50 and the side walls 26, 28, 46 and 48. The blank sheet 100 of FIG. 4 has 7 substantially parallel scribe lines 180. In reinforcing panel 170, only 4 scoring lines 180 are provided due to the somewhat smaller dimensioning. Lines about which the individual parts of the blank sheet are folded are shown in dashed lines in FIG. 4 (with the exception of the score lines 180) and are identified by the reference numeral 182. The blank sheet 100 also has two cuts 184, 185. To produce the cigarette pack 10, the side surface fields 128 and 129 can first be folded 90 ° upwards and the side surface field end flaps 160 and 161 thereon also 90 ° inwards. Then, the lower part of the blank sheet 100 having the bottom surface 130 and the first main surface panel 122 is folded up by 90 °, whereby the side surface field end flaps 160 and 161 come into contact with the bottom panel 130 and are bonded. If the first main surface field 122 is further folded in (by 90 °), the side surface fields 128, 129 and 126, 127 come to lie one above the other and can be glued, so that the box part 20 is finished. Similarly, the lid member 40 is made, ie, the side surface panel end flaps 162 and 163 are bonded to the top panel 150. The reinforcement panel 170 is glued inwardly onto the fourth major surface panel 142 and then the side panel panels 148, 149 and 146, 147 are glued together.

The finished box can then be seen in FIG. 5. Shown are, inter alia, the rounded longitudinal edges 32, 34, 36, 38, 52, 54, 56, 58 and the non-rounded transverse edges 31, 33, 51, 55. The scribe lines 180 are located on the inside of the box and are for the consumer of not visible on the outside.

Fig. 6 shows a cross-section through the box part 20 of the box 10 of Fig. 5, with the rounded longitudinal edges 32, 34, 36 and 38, the overlapping side panel areas 126, 128 and 127, 129 and when the rounded edges are disregarded , for Hinge-lid boxes usual rectangular cross-section of the box 10 can be seen.

Fig. 7 shows a cross section through the box part 20 of a box 10 with chamfered edges 32, 34, 36, 38, each edge being formed by 2 scribe lines 180 located on the inside.

Fig. 8 shows a blank sheet 100 for producing a cigarette packet 10 without cover part 40. The blank sheet 100 consists of the two first main surface panels 122 and 124 with their side surface panels 126, 127, 128 and 129 and the bottom panel 130 therebetween. The side panel panels 128 and 129 have side surface panel flaps 160 and 161 which, when folded, bond to the bottom panel 130 and help to stabilize the box.

Claims (10)

1. Box (10) made of a pre-cut sheet (100) of foldable material with a box part (20), the box part (20) having a box front wall (22), a box rear wall (24), box side walls (26, 28) and a box base (30), and one or more edge(s) of the box (10) being rounded off or chamfered in each case by two or more neighbouring, essentially parallel scoring lines (180) in the foldable material,
   characterized in that the foldable material is shortgrain cardboard or shortgrain paper.
2. Box (10) according to claim 1, characterized in that it furthermore has a lid part (40) with a lid front wall (42), a lid rear wall (44), lid side walls (46, 48) and a lid top side (50), the lid part (40) with the lid rear wall (44) being linked to the box rear wall (24).
3. Box (10) according to claim 1 or 2, characterized in that the scoring lines (180) are located on the inside of the box (10).
4. Box (10) according to one of claims 1 to 3,
   characterized in that all 4 longitudinal edges (32, 34, 36, 38) of the box part (20) and, if present, all 4 longitudinal edges (52, 54, 56, 58) of the lid part (40) or the transverse edges (31, 33) between box front wall (22) and box rear wall (24) as well as box base (30) and, if present, the transverse edges (51, 53) between lid front wall (42) and lid rear wall (44) as well as lid top side (50) are rounded off or chamfered.
5. Box (10) according to one of claims 1 to 4, characterized in that the scoring lines (180) are formed by a 10 - 80% reduction in the thickness of the foldable material.
6. Pre-cut sheet (100) made of foldable material with a first main surface field (122) with a left- and right-hand first side-surface field (126, 127), a base field (130) joining up with the top edge of the first main surface field (122) and a second main surface field (124) with a left- and right-hand second side-surface field (128, 129) joining up with the top edge of the base field (130), and with one or more fold area(s) each with two or more, essentially parallel scoring lines (180), characterized in that the foldable material is shortgrain cardboard or shortgrain paper and that the fold area(s) is/are arranged between one or more of the side-surface fields (126, 127, 128, 129) and one or both main surface field(s) (122, 124) or between one or both main surface fields (122, 124) and the base field (130).
7. Pre-cut sheet (100) according to claim 6, characterized in that a side-surface field end tab (160, 161) joins up with the bottom edge of the left- and right-hand second side-surface field (128, 129).
8. Pre-cut sheet (100) according to claim 6 or 7, characterized in that fold areas are located between all side-surface fields (126, 127, 128, 129) and the two main surface fields (122, 124) or between the two main surface fields (122, 124) and the base field (130) .
9. Pre-cut sheet (100) according to one of claims 6 to 8, characterized in that a third main surface field (144) with a left- and right-hand third side-surface field (146, 147) joins up with the top edge of the second main surface field (124), a top side field (150) joins up with the top edge of the third main surface field (144) and a fourth main surface field (142) with a left- and right-hand fourth side-surface field (148, 149) joins up with the top edge of the top side field (150) and in that the pre-cut sheet (100) has one or more fold area(s) each with two or more, essentially parallel scoring lines (180), which is/are arranged between one or more of the third and fourth side-surface fields (146, 147, 148, 149) and the third and/or fourth main surface field (144, 142) or between the third and/or fourth main surface field (144, 142) and the top side field (150).
10. Pre-cut sheet (100) according to claim 9, characterized in that a side-surface field end tab (162, 163) joins up with the top edge of the left- and right-hand third side-surface field (146, 147) and a strengthening field (170) joins up with the top edge of the fourth main surface field (142).

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