RU2309102C2 - Box for tobacco articles and method for making the same - Google Patents

Abstract

FIELD: packages, particularly for tobacco goods.

SUBSTANCE: box 1 is folded from sheet material 9. Box comprises wall 7 defined by overlapped inner part 22 and outer part 21 made of sheet material. One section of inner part 22 covered with corresponding section of outer part 21 is elongated and form depression 27 to provide thickness of corresponding outer part 21 section. Depression 27 is surrounded by corresponding the first free outer edge 29 and the second inner edge 30 connected with remainder sheet material 9. Outer part 21 has the third free edge 21 located from outer side of the second edge 30 and coplanar thereto. This provides stepless continuous outer surface of corresponding wall 7 free of projecting edges 31.

EFFECT: increased efficiency and provision of smooth outer wall surface.

12 cl, 9 dwg

Description

The present invention relates to a box for tobacco products.

More specifically, the present invention relates to a box for tobacco products, for example, to a pack or cardboard packaging for cigarettes formed by folding sheet material, usually a blank, and containing at least one double-layer wall defined by the inside and outside of the sheet material superimposed on each other, while at least part of the inner part is covered with the corresponding part of the outer part.

The present invention has particular advantages for the manufacture of packs of cigarettes with a hinged lid, to which reference is made solely as an example in the description below.

Description of the Related Art

In the tobacco industry, packs of cigarettes with a hinged lid are known, that is, packs containing a main body and a lid attached to each other along a connection line, made by folding a flat, substantially rectangular blank on which two pre-formed longitudinal lines or fold bands parallel to each other and to the longitudinal axis of the workpiece define a central main part divided by a plurality of folding lines previously made in the transverse direction and by connection line to a number of sections, usually containing the first front section of the main part, the second lower section of the main part, the third rear section of the main part, the fourth rear section of the lid connected to the third section along the specified connection line, the fifth upper section of the lid, the sixth front section of the lid and a seventh fortified section of a sixth section.

Outside of the central body, preformed longitudinal lines or fold lines define two first valves connected to respective longitudinal edges of the first section; two second valves connected to respective longitudinal edges of the third section; two third valves connected to respective longitudinal edges of the fourth section; and two fourth valves connected to respective longitudinal edges of the sixth section.

During folding of the workpiece, each of the above-mentioned valves is bent at right angles to the corresponding section and superimposed on the other valve to form the corresponding part of the side wall of the pack. More specifically, each first valve is placed on and glued to the outer surface of the corresponding second valve, and every fourth valve is placed on and glued to the outer surface of the corresponding third valve to form two opposing side walls on the pack, on each of which free edges of the external valves.

The fact that the free edges are visible has both aesthetic and functional flaws. Namely: the free edges, on the one hand, usually have the natural color of the cardboard from which the workpiece is made, in contrast to the colors / s of the adjacent outer surface of the bundle, and on the other hand, are rough so that it is convenient to take the pack when using surrounding materials, and any transparent wrap material was guaranteed to not stick to the outer surface of the bag.

US 4,526,317 describes a parallelepiped-shaped cigarette box formed by folding and folding a solid blank from a conveniently cut sheet of cardboard or other rigid, resilient and foldable material. The box comprises a box-shaped lid attached along its back wall; wherein the inner sides of the lid comprise lid guiding sections separated from the lid sides, with lateral parts of precise angular stops arranged to slide between the lid sides and the lid guiding sections. In an alternative embodiment, smoothed angular stops and the upper part of the frontal section of the main part of the box body are presented.

US 5197935 describes a transparent package having side walls, as well as upper and lower walls serving as a cover and a bottom, respectively, with the side wall and top having a sealing seam extending along the edges of adjacent walls; so that the package may have a smooth outer surface in the area of the sealing joints, without the formation of synthetic plastic bent edges or the like, while the outer surfaces of the two walls that are connected to each other by means of the sealing joint are arranged to constantly connect to each other through a gap along at least one end surface of the edge that belongs to the corresponding wall, so that the other surfaces are even in cross section, and in which the sealing joint amaskirovan inside the package by a synthetic plastics beveled edge.

SUMMARY OF THE INVENTION

The present invention is the creation of a box for tobacco products, designed to eliminate the above-mentioned disadvantages.

To solve this problem, the proposed box for tobacco products according to paragraph 1 of the claims, and preferably according to any one of the following claims, depending directly and / or indirectly on paragraph 1.

The present invention also relates to a method of manufacturing a box for tobacco products, as defined above. According to the present invention, there is provided a method of manufacturing a box for tobacco products, as claimed in claim 6 and preferably in any of the following claims, depending directly and / or indirectly on claim 6.

Brief Description of the Drawings

A number of non-limiting embodiments of the present invention will be described by way of example with reference to the accompanying drawings, in which:

figure 1 depicts a cross section in perspective of a preferred embodiment of a box according to the present invention;

figure 2 is a side view of a variant of the box of figure 1;

figure 3 - the workpiece from which the box is made according to figure 1;

figure 4-6 depict a diagram of the corresponding methods of manufacturing the workpiece according to figure 3;

7 to 9 are similar to FIG. 1 and depict further embodiments of the box of the present invention.

Preferred Embodiment

The number 1 in figure 1 indicates a pack of cigarettes with an attached lid containing cigarettes A, laid in the inner wrapper B. Pack 1 contains the main part 2 and the lid 3 connected to each other along the connection line 4 (figure 3), and contains a front wall 5, rear wall 6 and two auxiliary side walls 7, perpendicular to the front and rear walls 5 and 6 and connected to them by rounded longitudinal edges 8.

As shown in FIG. 3, the bundle 1 is formed by folding a flat, substantially rectangular blank 9, on which two preformed longitudinal bending strips 10 are parallel to each other and the longitudinal axis 11 of the blank 9, and the central main part 12 is defined to form rounded edges 8 divided by a plurality of preformed transverse fold lines 13 and a connection line 4 into a series of sections comprising a front section 14 of the main part 2; the lower section 15 of the main part 2; back section 16 of the main part 2; a rear section 17 of the lid 3 connected to the section 16 via a connection line 4; the upper section 18 of the cover 3; front section 19 of cover 3; and reinforcing section 20 of section 18.

Outside of the central body 12, preformed longitudinal bend stripes 10 define two valves 21 extending along respective longitudinal edges from the front section 14; two valves 22 extending along the respective longitudinal edges of the rear section 16; two valves 23 extending along the respective longitudinal edges of the rear section 17; and two valves 24 extending along the respective longitudinal edges of the front section 19.

When bending sheet 9 in order to form pack 1, valves 21-24 are bent at right angles with the corresponding sections 14, 16, 17, 19; each valve 21, 24 is superimposed at least partially on the corresponding valve 22, 23 and is located on the outer surface of the respective valves 22, 23, and glued to them; and each pair of respective valves 22 and 23 determines together with respective valves 21 and 24 superimposed on them a corresponding side wall 7, the opposite longitudinal edges of which are connected respectively to the front wall 5 and the rear wall 6 by means of two rounded edges 8, each of which is defined by means of a corresponding preformed fold strip 10.

As shown in FIG. 3, the plotted line 15 is formed along each pair of valves 22 and 23, runs parallel to the longitudinal axis 11, and, as shown in FIG. 1, divides each valve 22, 23 into a protrusion 26 adjacent to the outer edge of the corresponding preformed bend strip 10 and located at the level with it, and the cavity 27.

The depression 27 of each valve 22, 23 is located on the corresponding valve of the inner collar 28, has a free edge 29 and is connected to the corresponding protrusion 26 by means of a shoulder 30, which defines the inner edge of the corresponding valve 22, 23, and has a height essentially equal to the thickness of the workpiece 9 runs along the corresponding drawn line 25 and is located on the outside near the free edge 31 of the corresponding valve 21, 24 and coplanar with it.

In figures 1 and 3 of the example, each plotted line 25 is straight and formed almost along the outer edge of the corresponding preformed fold strip 10, so that the protrusions 26 of the respective valves 22 and 23 have a relatively small surface. In embodiments not shown, however, each line 25 is positioned slightly further from the outer edge of the corresponding preformed fold strip 10, with a corresponding decrease in the width of the respective valves 21 and 24, and / or defined as in the example shown in the embodiment of FIG. 2 drawn by line 25a of any curvilinear and / or mixed shape, to obtain the corresponding side wall 7 with a completely flat outer surface 7a, without retreating or distorting the free edges 31, and at the same time with especially attract lnym effect.

The applied lines 25, 25a can be formed using various methods, the choice of which depends on the shape and location of the applied lines 25, 25a, and on the type of blanks 9 used.

In order to obtain straight applied lines 25 extending along blanks 9 removed from a stack (not shown) and fed continuously or stepwise along the axis direction, each applied line 25 is preferably formed using two rollers 32 (FIG. 4) rotating around respective axes 33 perpendicular to the longitudinal axis 11, and located with the possibility of contact with the corresponding cavity 27, and the two rollers 34 are offset with respect to the rollers 32, rotating around the respective axes 35, parallel to the axes 33, and located with possible contact pin 26.

If the blanks 9 (FIG. 5) are fed stepwise in any direction, for example, perpendicular to the longitudinal axes 11, the applied lines 25 or 25a are preferably formed using a pattern 36 and a contour pattern 37 moving perpendicular to the blanks 9 and having corresponding additional face surfaces 38 and 39 .

If the blanks 9 are connected laterally (FIG. 6) to form a continuous strip 40 fed continuously or stepwise in a direction 41 perpendicular to the longitudinal axes 11, the applied lines 25 or 25a are preferably formed using two substantially contiguous rollers 42 and 43 located on opposite sides of the strip 40, and rotating around the respective axes 44 and 45 parallel to each other and the longitudinal axes 11, and perpendicular to the direction 41. The rollers 42 and 43 respectively contain at least one peripheral height blunt 46 and at least one recess 47, which are brought into contact with the corresponding opposite surfaces of the depressions 27 of two adjacent blanks 9.

The applied lines 25, 25a can obviously be formed both in the manufacture of blanks 9 and on the user's packaging machine.

The above description relating to packet 1 is also applicable to any rigid packaging for tobacco products having one wall formed by applying two layers of sheet material.

For example, FIG. 7 shows a bundle 48 with beveled edges 49, that is, an octagonal bundle 48, the edges 49 of which are defined by a longitudinal strip 50 at an angle of 45 degrees to the adjacent side wall 7, connected to the side wall 7 along the longitudinal edge 51. Draw lines 25 (or 25a) packs 48 are preferably formed on the respective valves 22 and 23 adjacent to the corresponding trailing edges 51.

By way of a further example, FIG. 8 shows a pack 52 of rectangular sections in which each side wall 7 is connected to the front wall 5 and the rear wall 6 at right edges 53, and each drawn line 25 (or 25a) is preferably formed on the respective valves 22 and 23 adjacent to the corresponding trailing edge 53.

By way of a further example, FIG. 9 shows a “pillow” -button 54 in which the opposite side portions of each of the front and rear walls 5 and 6 are defined by a transverse curved preformed fold strip 55 connected to the corresponding side wall 7 along a corresponding sharp edge 56, and each plotted line 25 (or 25a) is preferably formed on respective valves 22 and 23 adjacent to the corresponding trailing edge 56.

Claims (12)

1. A box for tobacco products formed by bending a preform (9) containing a central main part (12) having a longitudinal axis (11) and divided into several sections (14-20) by means of previously made folding lines (13) perpendicular to the specified longitudinal axis (11), a box (1; 48; 52; 54) containing at least one wall (7) with a double layer, defined by the inner part (22, 23) and the outer part (21, 24) sheet material (9), superimposed one on top of the other, with at least part (27) of said inner part (22, 23) of the cover that corresponding part of the specified outer part (21, 24), while part (27) of the inner part (22, 23) is a depression (27) formed by a value at least equal to the thickness of the specified sheet material (9), while at least some (14; 16; 17; 19) of the sections (14-20) of the workpiece (9) have opposite side flaps (21-24), each of which is bent at right angles to the corresponding section (14; 16; 17; 19) to form the corresponding specified wall (7) with a double layer, characterized in that the cavity (27) is surrounded by a corresponding free external first edge (29) and an internal second edge (30) connected to the rest of the specified sheet material (9), and the outer part (21, 24) has a free third edge (31) wherein the third edge (31) is located on the outside of the second edge (30) and is coplanar with it. 2. A box according to claim 1, wherein said second and third edges (30, 31) are complementary in shape. 3. A box according to claim 1 or 2, wherein said second and third edges (30, 31) are straight. 4. A box according to claim 1 or 2, wherein said second and third edges (30, 31) are curved. 5. The box according to claim 1 or 2, in which the second and third edges (30, 31) have a combined shape. 6. A method of manufacturing a box for tobacco products, consisting of the step of folding the blank (9) to form in the box (1; 48; 52; 54) at least one wall (7) with a double layer containing the inside (22, 23) and the outer part (21, 24) of the sheet material (9) superimposed on each other; wherein at least part (27) of said inner part (22, 23) is covered by the corresponding part of said outer part (21, 24), while part (27) of said inner part (22, 23) is additionally pressed by, at least equal to the thickness of the specified sheet material (9), and the workpiece (9) contains the main part (12) having a longitudinal axis (11) and divided into several sections (14-20) by means of previously made fold lines (13), perpendicular to the specified longitudinal axis (11); at least some (14; 16; 17; 19) from sections (14-20) of the workpiece (9) have opposite side flaps (21-24), each of which is bent perpendicular to the corresponding section (14; 16; 17; 19) and at least partially superimposed on the corresponding valve (21-24) of the other specified section (14; 16; 17; 19) to form the corresponding wall (7) with a double layer, characterized in that the cavity (27) surrounded by a corresponding free outer first edge (29) and an inner second edge (30) connected to the rest of the specified sheet material (9), and said outer part (21, 24) has a free outer third edge (31) located on the outer side of said second edge (30) and coplanar with it. 7. The method according to claim 6, in which the specified part (27) of the inner part (22, 23) is pressed by pulling. 8. The method according to claim 7, in which the drawing is performed using a template (36) and an outline template (37) 9. The method according to claim 7, in which the stretching is performed by rolling. 10. The method according to claim 9, in which the rolling is performed in a direction parallel to the specified longitudinal axis (11). 11. The method according to claim 9, in which the rolling is performed in a direction perpendicular to the specified longitudinal axis (11). 12. The method according to claim 11, in which the preform (9) forms part of the strip (40), determined by the sequence of preforms (9), connected to each other and located together with their longitudinal axes (11) perpendicular to the direction (41) of movement of the specified strip (40).

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