EA005349B1 - 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 present invention relates to a box, in particular, for cigarettes, in which one or several edges are rounded or chamfered, as well as to folding blanks for its manufacture.

Cigarettes are usually delivered to the market either in soft box containers or in rigid box containers, for example in boxes with a hinged lid or boxes with a hinged lid, but also in so-called hard-soft packs without a hinged lid. In the case of rigid boxed containers, rounding or cutting corners is also known. For example, in EP 0 205 766 B1, hinged lid boxes are described with four longitudinal edges rounded so that less material is required for making a cigarette box, on the one hand, and on the other hand, it is more convenient for consumers to hold such a box.

In order to obtain rounded or chamfered edges, the folding blanks from which cigarette boxes are made are supplied in the areas forming the edges of the cigarette box with corrugations. According to patent I8 4 955 531, the corrugations can be made in a form in which the corrugation device is pressed on the folding billet in appropriate places. On the opposite side there is a groove in the grooves into which the material of the folded billet can be pressed. With parallel grooves in accordance with the described method, a wavy cross-section occurs. When the folded blanks processed in this way are folded along the corrugations, round (or in the case of several grooves) round or (in the case of two grooves) bevelled edges of the cigarette package are formed automatically.

The disadvantage, however, here is that, in view of the intrinsic stiffness and restoring efforts of the material of the package, bonding for the manufacture of packaging for cigarettes is not without problems. It is usually implemented in overlapping areas of the folded billet, which form the side walls of the box. Due to the rounded or beveled edges, these overlapping areas are markedly reduced compared to a conventional hinged lid box, so that only a limited amount of adhesive can be applied. The consequence is a slowdown in automated production, as it is necessary to wait a longer time until a relatively small amount of adhesive dries properly, as otherwise the box would open again under the effect of the restoring force of the material.

This is especially noticeable when using cardboard or paper with a wide canvas for the manufacture of boxes with a hinged lid. When making paper or cardboard, the product-forming material is placed on a fast-moving conveyor belt. This leads to the fact that the long fibers in the material are preferably oriented in the longitudinal direction. Depending on whether the folded blanks are then cut along or across the finished material web, the long fibers in the material of the folded blank are oriented transversely to the longitudinal axis of the folded blank (wide web) or along the longitudinal axis of the folded blank (narrow web). The orientation of the fibers across the longitudinal direction of the folding billet of a wide web results in good flexibility relative to the transverse axis, however, poor flexibility relative to the longitudinal axis. Therefore, the regenerative forces for side bonding will be significantly greater than in the case of folding blanks from a narrow web, in which, due to the changed position of the long fibers in the material, exactly the opposite ratios will take place. On the other hand, for making boxes with a hinged lid, foldable blanks from a wide web are preferably used, since they significantly improve the lid stability (skewed during closing, eliminating the possibility of easy lid tear), packing rigidity due to increased stability in the transverse direction and a flat position packaging, i.e. possible lower deflection of the packaging, compared with the use of materials with a narrow canvas.

The objective of the invention is to overcome the disadvantages described above, especially when using folding blanks of material with a wide canvas.

This task is solved by a box of folding material, such as paper, cardboard, plastic, plastic film, laminate containing a box-shaped part, the box-shaped part having a front wall of the box, a back wall of the box, side walls of the box and the bottom of the box, and one or more the edges of the box due to respectively two or more adjacent, essentially parallel fold lines in the folding material are rounded or beveled, characterized in that the fold lines are notches, as well as among your folding blank for making a box, that is, a folding blank of folding material with the first pad of the main face with the left and right first pad of the lateral face, the bottom pad adjacent to the upper edge of the first pad of the main face, and the second pad adjacent to the upper edge of the bottom pad faces with the left and right second side face pad, and with one or several fold areas, respectively, with two or several substantially parallel fold lines, characterized in that fold lines are notches and that the fold area (s) are placed (placed) between one or several of the side faces of one or both of the main faces or between one or both of the main faces and the bottom.

- 1 005349

By folding the above-described folding blank, a rigid box package is obtained, which consists only of a box-like part in which a pack of cigarettes wrapped in an inner wrapper can be enclosed. Usually the size of the box is such that a pack of cigarettes is tightly placed in the box and protrudes at the upper open end to allow the consumer to open the box and take out the cigarettes.

As a rule, the box, however, has, along with the box-shaped part, also a lid part, which has a front wall of the lid, a back wall of the lid, side walls of the lid and the upper side of the lid, and which is connected with the back wall of the lid to the back wall of the box. , so the result is a regular box with a hinged lid.

In order to obtain such a standard box with a hinged lid, the above described folding billet has additional platforms, namely, the third pad of the main face adjoins the second pad of the main face with the left and right third pad of the lateral face, and the pad of the upper side adjoins the upper edge of the third pad of the main face, and a fourth pad of the main face with the left and right fourth pad of the side face adjoins the upper edge of the pad of the upper side, and the folded billet has one or Several fold areas with two or several essentially parallel notches that are located between one or several of the third and fourth side faces and the third and / or fourth main face or between the third and / or fourth main face and the upper side .

Preferably, the folded billet, in addition to the described areas, additionally has, at the lower edge of the left and right second areas of the side faces, the left and right second end inlet of the side edge site, as well as the left and right third end inlets at the top edge of the left and right third sides side edge sites. These end inlets of the sides of the side edges serve to reinforce the bottom and the cover of the finished box.

Preferably, at the upper edge of the fourth pad of the main face there is a reinforcing pad, which, when making the box, is glued to the inner side of the fourth pad of the main face and also serves to reinforce.

In the manufacture of notches under the influence of undercutter decreases the thickness of the material forming the package. To this end, the folding preform is laid on a smooth substrate and is processed by an undercutter, so that, along with compression, material can also be removed. Depending on the shape of the undercutter, a ν-shaped or u-shaped cross section, for example, occurs. Since the substrate does not have channels at opposite points of the undercutter, as is known from the prior art, but, on the contrary, has a flat surface, there is a reduction in thickness rather than deformation without a decrease in thickness, as is known in the prior art. The sides of this side of the foldable billet equipped with notches, then in the manufacture of packaging for cigarettes are first bent at an angle of 90 °, and the reducing efforts, especially when using materials with a wide web, are noticeably smaller, so that the automated manufacturing process allows quick gluing.

The degree of thickness reduction depends on the material used, but, as a rule, makes up from 10 to 80% of the total thickness, preferably from 20 to 70% and particularly preferably from 40 to 50%.

Notches are preferably located on the side of the folded billet, which in the finished box forms the inner side. This has the added advantage of a more attractive appearance of the finished box. In the case of boxes with round edges according to the state of the art, corrugations can always be seen on the edges. This can be avoided in the proposed invention. Since the notches are on the inside of the boxes, the outer side of the box visible to the consumer looks untouched and shows a smooth outer surface.

Due to the number of notches and their mutual distance from each other, the degree and type of rounding can be set. It is preferable to use on the fold area from 6 to 8, especially the 7 fold lines, which are about 1 mm apart. When folded, it turns out a box with round edges; in this case, the rounding radius corresponds approximately to the radius of a regular cigarette sold on the market. Also preferred is the use of two notches on the bend area, which are at a distance of 6 to 8 mm, especially 7 mm from each other. When folded, it turns out a box with beveled edges.

The notches preferably run along the entire length and / or width of the box, so that completely rounded or beveled transverse and / or longitudinal edges are obtained.

As a folding material for folding blanks and boxes for cigarettes can be used all the usual materials, in particular, commonly used for cigarette boxes paper and cardboard, coated or uncoated, as well as synthetic materials. Especially preferred are paper or cardboard with a wide web, in which notches have a particularly positive effect on the regenerative efforts and, thus, on the acceleration of processing.

Especially preferred is the rounding off or bevelling of all four longitudinal edges of the box, i.e. the longitudinal edges of the box-shaped part and the longitudinal edges of the lid part (if present), however, not the transverse edges. With proper execution of the folding billet

- 005349 It is also possible that only two longitudinal edges (adjacent or opposite diagonally) or in addition to the longitudinal edges and transverse edges are rounded and / or beveled.

In addition, it is preferable that the transverse edges between the bottom of the box, the front wall of the box and the back wall of the box, and if there is a lid, then the transverse edges between the front wall of the lid, the back wall of the lid and the top side of the lid are rounded or beveled, but not longitudinal edges boxes, that is, the longitudinal edges of the boxed part and, if any, the longitudinal edges of the lid part.

The manufacture of the folding blanks is carried out in a known manner. That is, the folded blanks are unwound from the web of material of the folded blanks, which are stored in rolls, and are preferably packed as folded blanks from a wide web. Usually, one working stage is implemented, at which the folded blanks are processed in the described manner with the help of an undercutter and simultaneously cut and / or cut and, if necessary, pressed. By simply folding and gluing the folded blanks to the side surfaces, an automatically made cigarette box is then produced, which in the usual manner contains a group of cigarettes packed in an inner wrapper. In a flip-lid box according to the invention, a portion of the rim is usually used, which in the open box protrudes slightly from the inside of the front wall of the box and has a cut-out that allows the cigarettes in the box to be caught.

The invention is illustrated below on the example of implementation. The drawings are shown in FIG. 1 is a cross-sectional view of the folded blank 100 according to the invention with notch 180; FIG. 2 is a cross-sectional view of a stack of workpiece 100 according to the invention with another embodiment of a notch 180; FIG. 3 is a cross section of a stackable billet according to the state of the art; FIG. 4 shows a folding blank 100 according to the invention for producing a cigarette case 10 according to the invention, with a hinged lid for cigarettes; FIG. 5 shows a cigarette lid box 10 according to the invention, in which four longitudinal edges are rounded, in FIG. 6 is a cross section of the cigarette box 10 of FIG. 5, in FIG. 7 is a cross-section of the cigarette case 10 with beveled edges; FIG. 8 shows a folding blank 100 according to the invention for producing a cigarette box 10 without a lid according to the invention.

FIG. 1 shows the cross-section of the folding billet 100 with a notch 180 ν-shaped cross-section. The cross section of the notch 180 depends on the undercutter used and may, for example, have a sharper angle than that shown in FIG. 1, or a right angle, as shown in FIG. 2

For comparison, in FIG. 3 shows in cross-section a rifling known from the prior art in which no reduction in thickness occurs, as is the case in the invention.

FIG. 4 shows a folding blank 100 for making a cigarette box 10. You can see the areas 122, 124, 142 and 144 of the main faces, which in the finished cigarette box form the front wall 22 of the box, the back wall 24 of the box, the front wall 42 of the lid and the back wall 44 of the lid, respectively. In addition, you can see the platform 130 of the bottom and the platform 150 of the upper side, as well as the platforms 126, 127, 128, 129, 146, 147, 148 and 149 of the side faces, which in the finished box correspond to the bottom 30 of the box, the upper side 50 of the lid, and also the side walls 26, 28, 46 and 48. The stackable blank 100 of FIG. 4 has 7, essentially parallel to the passing notches 180. In the amplification area 170, due to a somewhat reduced size, only 4 notches are provided. The lines along which the individual parts of the folded billet are bent are shown in FIG. 4 (with the exception of notch 180) with dashed lines and denoted by reference numeral 182. Folded blank 100 also has 2 notches 184, 185. To manufacture the cigarette box 10, you can first unscrew the platforms 128 and 129 of the side faces 90 ° upwards, and then These end overlaps 160 and 161 of the sides of the side faces are also bent 90 ° inwards. Then, the lower part of the folded billet 100 is folded over by the bottom face 130 and the first main surface pad 122 upward by 90 °, so that the end overlaps 160 and 161 of the side face bays come into contact with the bottom pad 130 and stick together. If the first pad 122 of the main face bends further (by 90 °), then the pad 128, 129 and 126, 127 of the side faces are superimposed on each other and can be glued together, resulting in a portion of the box 20. Similarly, the lid portion 40 is manufactured, i.e., the end overlaps 162 and 163 of the side face pads are glued to the top side pad 150. Reinforcing pad 142 is glued inward to the fourth pad 142 of the main face, and thereafter, the pad 148, 149 and 146, 147 of the side faces are glued to each other.

The finished box is shown in FIG. 5. Including rounded longitudinal edges 32, 34, 36, 38, 52, 54, 56, 58, as well as not rounded transverse edges 31, 33, 51, 55. Notches 180 are on the inside of the finished box and are not visible. outside the consumer.

- 3 005349

FIG. 6 shows a cross section of the box-shaped part 20 of the box 10 of FIG. 5, with rounded longitudinal edges 32, 34, 36 and 38, overlapping pads 126, 128 and 127, 129 of lateral faces, and, if we ignore the rounded edges, typical for hinged lid boxes, an essentially rectangular cross section of the box 10 .

FIG. 7 shows the cross section of the box-shaped part 20 of the box 10 with beveled edges 32, 34, 36, 38, each edge being formed by two notches 180 on the inside.

FIG. 8 shows a folding blank 100 for manufacturing a box 10 for cigarettes without a lid portion 40. The folding blank 100 consists of both first pads 122 and 124 of the main faces with their pads 126, 127, 128 and 129 of the side faces and the bottom bottom 130 between them. The pads 128 and 129 of the side faces have end inlets 160 and 161 of the sides of the side faces, which, when folded, stick together with the bottom pad 130 and contribute to increasing the stability of the box.

Claims (14)

CLAIM 1. A box (10) of folding material comprising a box part (20), the box part (20) having a box front wall (22), box back wall (24), box side walls (26, 28) and a bottom (30 ) boxes, one or more edges of the box (10) due to two or more adjacent, essentially parallel fold lines in the folding material, are rounded or beveled, characterized in that the fold lines are notches (180). 2. Box (10) according to claim 1, characterized in that it further comprises a lid part (40) with a front wall (42) of the lid, a rear wall (44) of the lid, side walls (46, 48) of the lid and the upper side (50 ) lids, and the lid part (40) with its rear wall (44) of the lid is pivotally connected with the possibility of rotation with the rear wall (24) of the box. 3. Box (10) according to claim 1 or 2, characterized in that the notches (180) are on the inside of the box (10). 4. Box (10) according to one of claims 1 to 3, characterized in that all four longitudinal edges (32, 34, 36, 38) of the box part (20) and, if any, all four longitudinal edges (52, 54 , 56, 58) of the lid part (40) or the transverse edges (31, 33) between the front wall (22) of the box and the rear wall (24) of the box, as well as the bottom (30) of the box and, if available, the transverse edges (51, 53) between the front wall (42) of the lid and the rear wall (44) of the lid, as well as the upper side (50) of the lid, are rounded or chamfered. 5. Box (10) according to one of claims 1 to 4, characterized in that the material to be folded is cardboard with a wide sheet or paper with a wide sheet. 6. Box (10) according to any one of claims 1 to 5, characterized in that the notches are formed by reducing the thickness of the folding material by 10-80%. 7. A folding blank (100) of folding material containing the first platform (122) of the main face with the left and right first platform (126, 127) of the side face, and the bottom platform (130) adjoins the upper edge of the first platform (122) of the main face and a second platform (124) of the main face with a left and right second side pad (128, 129) of the side face and one or more bending areas with two or more substantially parallel bending lines adjoin the upper edge of the bottom platform (130), characterized in that the fold lines represent wallpaper of the notch (180), and the area (areas) of the bend is placed (placed) between one or more platforms (126, 127, 128, 129) of the side faces and one or both platforms (122, 124) of the main face, or between one or both platforms (122, 124) of the main face and platform (130) of the bottom. 8. A folding blank (100) according to claim 7, characterized in that the end inlet (160, 161) of the side face pad is adjacent to the lower edge of the left and right second side pad (128, 129), respectively. 9. A folding blank (100) according to claim 7 or 8, characterized in that between all the platforms (126, 127, 128, 129) of the side faces and both platforms (122, 124) of the main faces or between both platforms (122, 124 ) of the main faces and the platform (130) of the bottom are the bending areas. 10. A folding blank (100) according to any one of claims 7 to 9, characterized in that a third platform (144) of the main face adjoins the upper edge of the second platform (124) of the main face with the left and right third side (146, 147) of the side face, to the upper edge of the third platform (144) of the main side adjoins the platform (150) of the upper side and to the upper edge of the platform (150) of the upper side adjoins the fourth platform (142) of the main face with the left and right fourth platform (148, 149) of the side and the fact that the folding blank (100) has one or more bending areas respectively, with two or more essentially parallel notches (180), which (which) are placed between one or more third and fourth platforms (146, 147, 148, 149) of the side face and the third and / or fourth platform (144, 146 ) the main face or between the third and / or fourth platform (144, 146) of the main face and the platform (150) of the upper side. - 4 005349 11. A folding workpiece (100) according to claim 10, characterized in that the end inlet (162, 163) of the side face area is adjacent to the upper edge of the left and right third platforms (146, 147) of the side face, and to the upper edge of the fourth platform (142) a reinforcing pad (170) adjoins the main face. 12. A folding blank (100) according to claim 10 or 11, characterized in that between the first to fourth (126, 127, 128, 129, 146, 147, 148, 149) side faces and the first to fourth ( 122, 124, 142, 144) of the main faces or between the first to fourth platforms (122, 124, 142, 144) of the main faces and the bottom area (130) and the upper side platform (150) are bend areas. 13. A folding blank (100) according to any one of claims 7-12, characterized in that the folding material is cardboard with a wide sheet of paper or paper with a wide sheet of paper. 14. A folding blank (100) according to any one of claims 7 to 13, characterized in that the notches are formed by reducing the thickness of the folding material by 10-80%.