CN1525929A - Cigarette boxes and cut pieces - 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

Cigarette boxes and cut pieces

technical field

The invention relates to boxes, in particular boxes for cigarettes, in which one or more edges are rounded or chamfered, and to cut-out pieces for the manufacture of such boxes.

Background technique

Cigarettes are usually marketed either in rigid or soft packs, e.g. in flip-top boxes or hinge-lid-boxes, but are also marketed in so-called rigid-soft-packs without folding lids . It is also known in the case of rigid box packaging to round or chamfer the corners of the box. For example EP0 205 766 B1 discloses a hinge-cover-box whose 4 long edges are all rounded, so that less material is required for making this cigarette case on the one hand, and consumers are also better on the other hand. Hold it in your hand.

In order to obtain rounded or chamfered edges, the blanks used to produce the cigarette packs are provided with grooves in the region forming the edges of the cigarette packs. According to US4 955 531 the groove can be produced in the following manner, in which the cut piece is pressed in by the groove body at the relevant position. On the counter face there is a groove-shaped channel into which the material of the cut piece can be pressed. In the case of grooves running in parallel, a corrugated cross-section is produced which corresponds to the method described above. When the cut pieces treated in this way are folded together, rounded (in the case of several grooves) or chamfered (in the case of two grooves) edges of the cigarette pack are automatically formed along the grooves.

The disadvantage in this respect is that, due to the inherent rigidity and resilience of the packaging material, bonding for the manufacture of cigarette packs is not without problems. This usually occurs in overlapping areas of the cutouts that form the side walls of the box. As a result of the significantly reduced edge rounding and chamfer overlap compared to conventional hinge-lid-boxes, only a limited amount of adhesive can be applied. The consequence is therefore that the mechanical production is slowed down, since it has to wait longer until the relatively small amount of adhesive has dried well; otherwise the box would be opened again by the resilience of the material.

This problem is particularly acute if the hinge-lid-box is manufactured using broad-board or broad-paper. In the manufacture of paper or cardboard the material forming the product is placed on a fast moving belt. This results in a preferential alignment of the long fibers in the material in the longitudinal direction. Depending on whether the cut piece is cut longitudinally or crosswise from the finished material web, the long fibers in the cut piece are arranged transversely to the longitudinal axis of the cut piece (wide width) or longitudinally to the longitudinal axis of the cut piece (narrow width). The orientation of the fibers transverse to the longitudinal direction of the broad-cut sheet results in good bend properties about the transverse axis, but poor bend properties about the longitudinal axis. The resiliency of the side bond is therefore stronger than that of the narrow-cut sheet, where the behavior is exactly the opposite due to the repositioning of the long fibers in the material. On the other hand, however, it is preferred to use wide-cut sheets for clamshell boxes, because of the stability of the lid (the lid does not close obliquely, the lid is not easily torn off), the rigidity of the box through the high stability in the transverse direction and the box The flat state of the box, that is, the slightest possible arching of the packaging box, is clearly advantageous when using wide-cut sheets compared to using narrow-web materials.

Contents of the invention

It is therefore the object of the invention to avoid the above-mentioned disadvantages, especially when using wide-cut sheets.

This object is solved by a box made of foldable material, such as paper, cardboard, plastic, plastic film or laminated plastic, with a box part having a box front wall, a box rear wall, box sides walls and a box base, and one or more edges of the box are each rounded or chamfered by 2 or more adjacent, substantially parallel fold lines on the foldable material, characterized in that the fold lines are Score line, and through the cut-out piece that is used for making box, promptly has the cut-out piece that has a first main surface area with left and right first side area that is made of foldable material, and this base area connects second On the upper edge of a main surface area, and the second main surface area with left and right second side areas is connected on the upper edge of the bottom area, and has one or more respectively with two or more substantially parallel The fold area of the fold line, characterized in that the fold line is a score line, and the fold area is arranged between one or more side areas and one or two main face areas, or is arranged on one or both main face areas area and the bottom area.

By folding the above-mentioned cut pieces, a rigid packaging box consisting of only one box part is obtained, within which a group of wrapped cigarettes can be loaded. Usually the box is sized such that a set of cigarettes is tightly packed in the box and protrudes slightly at the open upper end of the box to allow the consumer to open the box and extract the cigarettes.

Usually the box has a lid part in addition to the box part. The lid part includes a lid front wall, a lid rear wall, a lid side wall and a lid top, and is hinged on the box rear wall with the lid rear wall to form a usual hinge- Lid-box.

In order to obtain this common hinge-lid-box, the above-mentioned cut-outs have an additional area, namely a third main area area connected to the second main area area with a left and right third side area, where the upper area Connected on the upper edge of the third main surface area, the fourth main surface area with left and right fourth side areas is connected on the upper edge of the upper area, and the cutting sheet has one or more with two or more A folded area of strips, substantially parallel score lines, the folded area is arranged between one or more of the third and fourth side areas and the third and/or fourth main face area, or arranged between the third and/or Or between the fourth main surface area and the upper area.

Preferably, in addition to the above-mentioned regions, the cut pieces also have additional left and right second side region pieces connected to the lower edges of the left and right second side regions, and connected to the upper edges of the left and right third side regions The left and right third side area slices. These side area pieces are used to reinforce the bottom surface and lid of the finished box.

Preferably, on the upper edge of the fourth main area region there is a reinforcement area which is glued to the inside of the fourth main area area during the manufacture of the box and simultaneously acts as a reinforcement.

Use a scoring knife to reduce the thickness of the material making up the box when making the score line. For this purpose, the cut pieces are laid flat on a smooth base and processed with a skid knife so that material is also removed in addition to compression. Depending on the shape of the scoring knife, a V- or U-shaped cross-section is produced, for example. The base does not have a channel opposite the scoring knife as known from the prior art, but rather a smooth surface that results in a reduction in thickness rather than no reduction in thickness as known in the prior art. small deformation. The side areas of the cut piece provided with the scoring line are first bent by 90° for the production of the cigarette pack, during which the spring back force is significantly lower, especially when using wide-web materials, so that the mechanical production can be performed more quickly bonding.

The degree of thickness reduction depends on the material used and is generally 10 to 80%, preferably 20 to 70%, particularly preferably 40 to 50%, of the total thickness.

The score line is preferably on the face of the cut piece that forms the inner face in the finished box. This also has the advantage of an attractive visual appearance of the finished box. On prior art boxes with rounded edges the grooves are always visible on the edges. This can be avoided by the present invention. As long as the scratch line is on the inside of the box, consumers can see the unprocessed appearance of the box and show a smooth surface.

The size and form of the rounding can be determined by the number of scoring lines and their mutual spacing. Preferably there are 6 to 8, especially 7 score lines per fold area, which are spaced approximately 1 mm apart from one another. When folded, a box with rounded edges is produced, the radius of which is about the same as that of a conventionally marketed cigarette. Preferably, two folding lines can also be selected per folding area, the distance between which is 6 to 8 mm, in particular 7 mm. This results in a box with chamfered edges when folded.

The scoring line preferably extends over the entire length and/or width of the box in order to obtain completely rounded or chamfered transverse and/or long edges.

All common materials can be used as foldable materials for the manufacture of cut sheets and cigarette packs. In particular paper and cardboard, with or without coating, and also plastic materials are commonly used for cigarette packs. Especially preferred are wide-web paper and wide-web cardboard, in which the scoring lines have a particularly effective and pronounced influence on the resilience and thus on the rapid processing.

It is particularly preferred that all 4 long edges of the box, ie the long edges of the box part and the long edges of the lid part (if any), are rounded or chamfered, but not the transverse edges. However, it is also possible that only two long edges (adjacent or opposite corners) are rounded or chamfered, or that transverse edges are also rounded and/or chamfered in addition to the long edges in a corresponding configuration of the cut piece.

It is also preferred that the transverse edges between the bottom of the box, the front and rear of the box and, if there is a lid part, the transverse edges between the front of the lid, the rear of the lid and the top of the lid be rounded Or chamfer, instead of the long edges of the box, that is to say the long edges of the box part and possibly the long edges of the lid part.

Cut pieces are produced in known manner. That is to say the cut pieces are unwound and embossed, preferably wide cut pieces, from a cut piece material web stored on rollers. This is usually a process step in which the cut piece is treated with a scoring knife in the above-described manner and simultaneously punched and/or cut off and, if necessary, coined. The finished cigarette pack, usually containing a group of cigarettes wrapped within its inner line, is obtained mechanically by usual folding and gluing on the sides. In the hinge-lid-box according to the invention, the usual flange part (Kragenteil) is usually also used, which protrudes slightly from the inner side of the front wall of the box in the opened box and has a groove, which makes it possible to grasp Take the cigarettes from the cigarette box.

Description of drawings

The description of the invention continues with the aid of an exemplary embodiment. in:

FIG. 1 is a cross-sectional view of a cut piece 100 with a score line 180 according to the present invention;

FIG. 2 is a cross-sectional view of a cut piece 100 according to another embodiment of the invention with a scoring line 180;

The cross-sectional view of the cutting piece of Fig. 3 prior art;

Fig. 4 is used to manufacture according to the present invention hinge-lid-type cigarette packet 10 according to the cutting piece 100 of the present invention;

Fig. 5 whose 4 long edges are rounded according to the hinge-lid-type cigarette case 10 of the present invention;

The cross-sectional view of the cigarette case 10 of Fig. 6 Fig. 5;

Figure 7 is a cross-sectional view of a cigarette pack 10 with chamfered edges; and

FIG. 8 shows a cut-out piece 100 according to the invention for producing a cigarette packet 10 according to the invention without a lid part.

Detailed ways

FIG. 1 shows a cross-sectional view of a cut sheet 100 having a score line 180 of V-shaped cross-section. The cross-section of the scoring line 180 depends on the scoring knife used and may, for example, have sharp corners as shown in FIG. 1 , or be rectangular as shown in FIG. 2 .

For comparison, a groove known from the prior art is shown in cross section in FIG. 3 , which in this case does not lead to a reduction in thickness as according to the invention.

FIG. 4 shows a cut-out piece 100 for manufacturing a packet 10 of cigarettes. Main surface regions 122 , 124 , 142 and 144 can be seen, which form the box front wall 22 , the box rear wall 24 , the lid front wall 42 and the lid rear wall 44 in the finished cigarette box. Also to be seen are the floor area 130 and the upper area 150 as well as the side areas 126, 127, 128, 129, 146, 147, 148 and 149 which in the finished box correspond to the box bottom 30, the lid top 50 and the side walls 26 , 28, 46 and 48. The cut sheet 100 of FIG. 4 has substantially parallel score lines 180 . Due to the small size there are only four scoring lines 180 in the reinforcement region 170 . The various lines of folding at various portions of the cut sheet are shown in dashed lines in FIG. Cutting piece 100 also has two incisions (Einschnitt) 184 , 185 . To manufacture the cigarette pack 10, the side regions 128 and 129 can first be folded upwards by 90°, and then the side region panels 160 and 161 adjoining them can be folded inwards by 90°. The lower part of the cut piece 100 with the base area 130 and the first main area 122 is then folded upwards by 90° so that the side area panels 160 and 161 are brought into contact with the base area 130 and bonded thereto. Continuing to bend the first main face region 122 (90°) so that the side regions 128, 129 and 126, 127 overlap and adhere to each other, the box part 20 is completed. The lid part 40 is produced in the same way, that is to say by gluing the side area pieces 162 and 163 to the upper area 150 . The reinforcement region 170 is glued inwards onto the fourth main area region 142, and then the side regions 148, 149 and 146, 147 are glued together.

The finished box can then be seen in Figure 5. Rounded long edges 32 , 34 , 36 , 38 , 52 , 54 , 56 , 58 and non-rounded transverse edges 31 , 33 , 51 , 55 are shown. The score line 180 is located on the inside of the box and is invisible to the consumer from the outside.

Figure 6 shows a cross-sectional view of the box part 20 of the box 10 of Figure 5, wherein the rounded long edges 32, 34, 36 and 38, the overlapping sides 126, 128 and 127, 129 and, if the rounded Without the edges, a substantially rectangular cross-section of the box 10 common to hinge-lid boxes can be seen.

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

FIG. 8 shows a cut-out piece 100 for manufacturing a cigarette packet 10 without a lid part 40 . Cut piece 100 consists of two first main area regions 122 and 124 with their side regions 126 , 127 , 128 and 129 , and a base area region 130 between the two main area regions. The side regions 128 and 129 have side region panels 160 and 161 which are bonded to the bottom region 130 by being folded together and which contribute to the stability of the box.

Claims (14)

1. by the box with cassette portion (20) (10) of folding material manufacture, wherein cassette portion (20) is by a box antetheca (22), a box rear wall (24), cassette sidewall (26,28) and a box bottom surface (30) constitute, and one or more rib of box (10) is by two or many adjacent, substantially parallel fold lines rounding or chamfering on Foldable material, it is characterized in that fold line is score line (180).

2. according to the described box of claim 1 (10), it is characterized in that, it also has a lid part (40), lid part (40) has a cover front wall (42), a lid rear wall (44), cap side-wall (46,48) and one above the lid (50), be hinged on the box rear wall (24) by lid rear wall (44) in this lid part (40).

3. according to claim 1 or 2 described boxes (10), it is characterized in that score line (180) is positioned on the inner face of box (10).

4. according to the described box of one of claim 1 to 3 (10), it is characterized in that 4 long ribs of all of cassette portion (20) (32,34,36,38); If any, all 4 the long ribs (52,54,56,58) or the horizontal rib (31,33) between box antetheca (22) and box rear wall (24) and box bottom surface (30) of lid part (40); And if any, in cover front wall (42) and lid rear wall (44) and all rounding or chamfering of the horizontal rib (51,53) between (50) above the lid.

5. according to the described box of one of claim 1 to 4 (10), it is characterized in that folding material is wide cut-cardboard or wide cut-paper.

6. the described box of one of claim 1 to 5 (10) is characterized in that, score line reduces to form by the thickness of Foldable material 10-80%.

7. cut sheet (100) by the Foldable material manufacturing, comprise and have a left side and right first side regions (126,127) the first interarea zone (122), wherein base surface area (30) is connected on the last rib in the first interarea zone (122), and have a left side and right second side regions (128,129) the second interarea zone (124) is connected on the last rib of base surface area (130), and comprise and have two or many respectively, one or more fold domains of substantially parallel fold line, it is characterized in that, fold line is score line (180), and these fold domains are set at one or more side regions (126,127,128,129) with one or two interarea zone (122,124) between, perhaps be arranged between one or two interarea zone (122,124) and the base surface area (130).

8. according to the described sheet (100) that cuts of claim 7, it is characterized in that each side regions sheet (160,161) is connected on the following rib of a left side and right second side regions (128,129).

9. according to claim 7 or the 8 described sheets (100) that cut, it is characterized in that, in all side regions (126,127,128,129) with two interarea zones (122,124) between, perhaps between two interarea zones (122,124) and base surface area (130), the fold domain is arranged.

10. according to the described sheet (100) that cuts of one of claim 7 to 9, it is characterized in that the 3rd interarea zone (144) that has a left side and right the 3rd side regions (146,147) is connected on (124) the last rib in the second interarea zone; Upper zone (150) is connected on the last rib in the 3rd interarea zone (144); The 4th interarea zone (142) that has a left side and right the 4th side regions (148,149) is connected on the last rib of upper zone (150); And cut sheet (100) and have one or more fold domains that have two or many, substantially parallel score line (180) respectively, these fold domains are set at third and fourth side regions (146,147,148,149) one or more and the 3rd and/or the 4th interarea zone (144 in, 142) between, perhaps be provided with between the 3rd and/or the 4th interarea zone (144,142) and the upper zone (150).

11. according to the described sheet (100) that cuts of claim 10, it is characterized in that each side regions sheet (162,163) is connected a left side and right the 3rd side regions (146,147) on the last rib, a reinforced region (170) is connected on the last rib in the 4th interarea zone (142).

12., it is characterized in that, in first to fourth side regions (126 according to claim 10 or the 11 described sheets (100) that cut, 127,128,129,146,147,148,149) with first to fourth interarea zone (122,124,142,144) between, perhaps in first to fourth interarea zone (122,124,142,144) and between base surface area (130) and the upper zone (150) fold domain is arranged.

13., it is characterized in that folding material is wide cut-cardboard or wide cut-paper according to the described sheet (100) that cuts of one of claim 7 to 12.

14., it is characterized in that score line (180) reduces to form by the thickness of Foldable material 10-80% according to the described sheet (100) that cuts of one of claim 7 to 13.

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