RU2561842C2 - Pack for smoking articles - Google Patents

Abstract

FIELD: packaging industry.

SUBSTANCE: in application a pack for smoking articles is described, having a cover (9) and a housing (2) formed of the thickness having material. The cover has a front wall (13) with a lower edge of the front wall and a valve (17) attached to a part of this lower edge of the front wall in the fold line (17a), formed by partial cutoff through the thickness of the material so that when the valve is folded about the said fold line and lies on the inner surface of the front wall of the cover, this part of the lower edge of the front wall, which is attached to the valve, serves as continuation of the rest of the lower edge of the front wall.

EFFECT: improvement of design.

10 cl, 3 dwg

Description

The present invention relates to a pack for smoking articles. Smoking articles, such as cigarettes, are usually stored in packs, and the main function of packs is to preserve cigarettes and protect them from mechanical damage and environmental influences. Cigarette packs of various configurations are known, including packs with a hinged lid and cigarette cases with retractable inserts. The hinged lid pack comprises a housing and a lid forming a space for accommodating a group of smoking articles. The cover is attached to the rear panel of the housing along the hinge line so that it can rotate between open and closed positions. In the closed position, the lower edge of the front wall of the lid abuts against the upper edge of the front panel of the housing and, connecting flush, forms a continuous outer surface. The front wall of the lid is usually formed by a valve bent around a fold line aligned with the lower edge of the front wall of the lid so as to form a double layer to ensure durability and prevent the lid from bending, as well as a “smile” or “yawning” of the pack when the lower edge of the front wall of the lid does not lie on the top edge of the front panel of the package body after the package has been opened and closed several times.

Typically, the closing line between the front wall of the lid and the front panel of the housing is a straight line and runs parallel to the hinge line around which the pack lid rotates. From US 6457580, however, a packet for smoking articles is known in which the line of closure of the front wall of the lid and the front panel of the housing is a curve.

The disadvantage of a pack with a curved lower edge of the lid is that it is difficult to form a double layer of the front wall of the lid using the valve described above, because unlike a regular pack with a hinged lid, where the valve easily folds around a fold line aligned with a straight lower edge of the front wall lids, it is not possible to fold the valve around a curved edge.

US 6,457,580 describes a bundle with a curved bottom edge of a lid, where the problem is attempted to be overcome in the lower edge of the lid having a straight or linear portion to which the valve is attached along a straight fold line and which extends between the curved sections of the lower edge of the lid. Thus, the closing line includes both straight and curved sections. In a bundle known from US 6457580, a fold line is formed by creasing between the bottom edge of the cap and the valve. The crease, however, does not always guarantee that the bending of the valve will necessarily occur around the fold line, and a mismatch or step may occur with respect to the adjacent curved lower edges of the front wall of the cover to which the valve is not attached, which leads to an unsatisfactory appearance.

The present invention provides a pack for smoking articles in which the aforementioned disadvantages are eliminated or significantly reduced.

In accordance with the present invention, there is provided a pack for smoking articles having a lid and a body formed of a material having a thickness, the lid having a front wall with a lower edge of the front wall and a valve attached along a fold line to a portion of this lower edge of the front wall, moreover, at least a part of this fold line is formed by a partial cut through the thickness of the material so that when the valve is folded around the fold line and lies on the inner surface of the front wall of the cover, this hour s bottom edge of the front wall, to which a valve, is a continuation (merges with) the rest of the lower edge of the front wall.

Preferably, the slot extends continuously (without gaps) along said portion of the lower edge of the front wall.

In one embodiment, the slot extends along a portion of said portion of the lower edge of the front wall.

Preferably, the fold line of said part can be linear and the remaining lower edge of the front wall can be curved.

The portion of the lower edge of the front wall to which the valve is attached may be located between the curved sections of the lower edge of the front wall.

In one embodiment, the housing comprises an upper edge having a contour similar to that of the lower edge of the front wall such that when the pack is closed, the upper edge of the housing and the lower edge of the front wall abut against each other.

Preferably, the upper edge of the housing and the lower edge of the front wall form a closing line having curved and linear sections.

Preferably, the cuts are performed by grooves.

In accordance with another feature of the invention, a blank is provided for forming the invention described above.

The following is an example of a description of particular embodiments of the present invention, with reference to the attached drawings, in which:

figure 1 presents a pack for accommodating a group of smoking articles in accordance with the present invention;

figure 2 presents the workpiece for forming the bundle shown in figure 1; and

figure 3 presents the workpiece for forming the inner frame, which is embedded in the bundle shown in figures 1 and 2.

1 shows a pack in which a group of smoking articles is placed in accordance with the present invention. Figure 2 shows the blank for forming the bundle shown in figure 1, where the solid lines show the cut lines or the outer borders of the blank 20, and the dashed lines show the lines formed by folding. The pack 1 contains a housing 2 and a cover 9 having a closing line 8. The closure line 8 between the lower edge of the lid and the upper edge of the package body has curved sections separated by a central straight or linear part.

The housing 2 of the pack 1 has front and rear panels 3, 4 lying opposite each other, separated by two left and right side panels 21a and 21b lying opposite each other. The ribs 7 formed at the joints of the front panel 3 and the side panels 21a, 21b may be rounded. On the front panel 3 and the side panels 21a, 21b, upper edges 5 are formed abutting against the corresponding lower edges 15 of the cover 9 so that a closure line 8 is formed, as will be understood from the following description. From the drawing in figure 2 it will also become clear that the housing 2 is formed with the panel 10 of the base.

As shown in figures 1 and 2, the housing 2 is connected to the rear wall 14 of the cover 9 along the fold line 11. The cover 9 also has an upper wall 12 extending between the rear wall 14, the front wall 13, and the left and right side walls 16 of the cover 9. The front and side walls 13 and 16 of the cover 9 have lower edges 15 that are mated to the upper edges 5 of the housing 2 when closed pack 1. As should be clear from figure 1, the lower and upper edges 15, 5 of the front wall 13 of the lid and the front panel 3 of the housing 2, respectively, form the mentioned line 8 of the closure.

Figure 2 shows that the workpiece 20 has an elongated shape and contains a housing 2 and a cover 9 of the pack 1, described above. The body 2 of the workpiece 20 has a front panel 3, a base panel 10 and a rear panel 4. The front panel 3 has left and right side walls 21a, 21b that overlap with side flaps 22a, 22b extending from the rear panel 4 in a folded blank. The dashed lines on the workpiece located between the front wall 3 and the side walls 21a, 21b, as shown in FIG. 2, show that the ribs formed on the folded workpiece are rounded.

The cover 9 of the workpiece 20 also has a rear wall 14, an upper wall 12 and a front wall 13, as described above. The upper and rear walls 12, 14 of the cover 9 are formed with side flaps 18, which overlap with the side walls 16 of the front wall 13 of the cover 9 in the folded blank 20. The front wall 13 of the cover 9 is additionally formed by a valve 17 attached to the rectilinear part of the edge of the cover along line 17a fold. The valve 17 is folded inward so that it lies on the inner surface of the front wall 13 of the cover 9. The valve 17 provides the cover 9 with stability and strength, since it forms a double layer together with the front wall 13 of the cover 9. In order to achieve the aesthetic attractiveness of the pack 1 and to avoid the appearance of ledges and roughness along the lower edge 15 of the cover where the valve 17 passes, partial cutting or grooving through the thickness of the material and along its length from the left adjacent lower edge section 15a is performed along the entire bend line 17a to the right neighboring section 15b of the lower edge, from the side of the workpiece facing outward so that the straight part of the edge of the lid is aligned with these left and right neighboring sections 15a, 15b of the lower edge, as their continuation, when the valve 17 is verified yvaetsya inside. As a result, when the pack 1 is closed, the upper edge 5 of the housing 2 abuts against the left and right adjacent lower edge sections 15a, 15b and the straight part of the lower edge. It should be borne in mind that cutting or grooving along the fold line not only reduces the thickness of the material, but also helps the valve to bend along this fold line.

Alternatively, the fold line may be partially cut or ridged through the thickness of the material, but, unlike the embodiment described above, not along its entire length. For example, a small portion of the fold line may be left uncut or uncut to stabilize the valve during manufacturing. This small portion may include uncut sections about 1 mm long on each side of the fold line, or, alternatively, a single cut section may be left in the middle of the fold line. It should be understood that, since the size of these sections is minimal compared to the length of the fold lines described in the prior art, the degree of possible mismatch and the creation of ledges relative to the adjacent lower edges of the lid are reduced, as mentioned in the introduction.

It is clear that the scope of the claims of the present invention is not limited only to the shape of the closure line 8 shown in FIGS. 1 and 2. On the contrary, the present invention can be used to form a bundle with a closure line of any irregular shape having a straight part from which the valve extends, and such a pack falls within the scope of the claims of this application.

It seems that in the bundle, in accordance with the present invention, can be used the inner frame 30, as shown in Fig.3. The inner frame 30 shown in FIG. 3 should be folded along the fold lines indicated by the dotted line to create rounded edges. The inner frame 30 is formed with a cutout 31 so as to facilitate the user to remove the smoking article. Figure 3 also shows that the inner frame 30 also has tongues 32, which engage with the inner surface of the side walls of the lid, to prevent accidental opening or "yawning" of the pack.

Embodiments of the invention have been shown and described herein, however, those skilled in the art should understand that the above description should be considered only as a description of preferred embodiments, and other embodiments falling within the scope of the appended claims should be considered part of the present disclosure.

Claims (10)

1. A pack for smoking articles having a lid and a body formed of a material having a thickness, the lid having a front wall with a lower edge of the front wall and a valve attached along a fold line to a part of this lower edge of the front wall, at least a portion this bend line is formed by a partial cut through the thickness of the material so that when the valve is folded around the bend line and lies on the inner surface of the front wall of the cover, this part of the lower edge of the front wall to which the valve is attached INH continuation remaining bottom edge of the front wall. 2. A pack for smoking articles according to claim 1, in which the slot extends continuously along the said part of the lower edge of the front wall. 3. A pack for smoking articles according to claim 1, in which the cut passes along part of the said part of the lower edge of the front wall. 4. A pack for smoking articles according to claim 1, in which the fold line of the said part is a straight line. 5. A pack for smoking articles according to claim 1, in which the rest of the lower edge of the front wall is curved. 6. A pack for smoking articles according to claim 1, in which said part is located between the curved sections of the lower edge of the front wall. 7. A pack for smoking articles according to any one of the preceding paragraphs, in which the housing has an upper edge, the contour of which is similar to the contour of the lower edge of the front wall of the lid, whereby the upper edge of the housing and the lower edge of the front wall abut against each other with the closed pack. 8. A pack for smoking articles according to claim 7, in which the upper edge of the housing and the lower edge of the front wall form a closing line having a curved and linear section. 9. A pack for smoking articles according to claim 1, in which the slot is formed by a groove. 10. A blank for forming a pack according to any one of the preceding paragraphs.

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