Package for cigarettes, and method for producing same
09533821 · 2017-01-03
Assignee
Inventors
Cpc classification
B65B19/025
PERFORMING OPERATIONS; TRANSPORTING
B65B2220/04
PERFORMING OPERATIONS; TRANSPORTING
B65B19/221
PERFORMING OPERATIONS; TRANSPORTING
B65B9/06
PERFORMING OPERATIONS; TRANSPORTING
B65D85/1045
PERFORMING OPERATIONS; TRANSPORTING
B65D75/5838
PERFORMING OPERATIONS; TRANSPORTING
Y02W30/80
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
International classification
A24F15/00
HUMAN NECESSITIES
B65B19/22
PERFORMING OPERATIONS; TRANSPORTING
B65B51/30
PERFORMING OPERATIONS; TRANSPORTING
B65B9/06
PERFORMING OPERATIONS; TRANSPORTING
B65D75/58
PERFORMING OPERATIONS; TRANSPORTING
Abstract
An aroma-tight cigarette pack with an outer pack (12) configured in the form of a hinge-lid box, and also with an inner pack (11) configured in the form of a sealed block with an opening aid which can be used a number of times. The opening aid has a removal opening (51) which extends in a sub-region of an inner front wall (39) and of an adjacent inner end wall (41) and is covered over by a closure label (54) with an adhesively bonding connecting periphery (55). The inner pack (11) has closure seams (37) which are designed in the form of fin seams.
Claims
1. A pack for cigarettes (10), comprising a dimensionally stable outer pack (12), in particular configured in the form of a hinge-lid box, and also comprising an inner pack (11) configured in the form of a sealed block with an inner wrapper (14) made of preferably aroma-tight and moisture-tight, thermally sealable sheet material for wrapping a cigarette group (13) and having an inner collar (46) partially enclosing the cigarette group (13), wherein the inner pack (11), in the region of an inner end wall (41) and in an adjacent region of an inner front wall (39), has a removal opening (51) with a closure label (54) which can be used a number of times, comprising: a) the inner collar (46) of the inner pack (11) has at least one front wall or upper wall (47), lateral supporting walls (48), and a collar base (50); b) the inner collar (46) has a longitudinal dimension, in particular in the region of the upper wall (47), corresponding essentially to a corresponding dimension or height of the inner pack (11); c) the upper wall has a recess (49) in a region facing the removal opening (51) of the inner pack; d) the lateral supporting walls (48) and the collar base (50) are fixed in a folded position, namely by abutment against the cigarette group (13), in particular by additional folding flaps which ensure a form-fitting and/or force-fitting retaining position; e) corner flaps (60) arranged on the supporting walls (48) in continuation of the supporting walls (48); and f) a retaining tab (62), an insertion tongue (86), and a retaining slot (87), wherein an arrangement, on a free periphery of the collar base (50), of the retaining tab (62) which, in the folded position in abutment against the inside of the collar base (50), fixes the corner flaps (60), in the folded position, in a form-fitting manner, in particular by plug-in connection, that is to say by virtue of the insertion tongue (86), which is connected to the retaining tab (62), being introduced into the retaining slot (87) in the region of a folding edge or folding line (59) between the upper wall (47) and the collar base (50).
2. The pack as claimed in claim 1, wherein the corner flaps (60) are connected to a corner region of the collar base (50) via residual connections (90), wherein the residual connections (90) can be severed when the folding flaps are being erected.
3. The pack as claimed in claim 1, wherein the corner flaps (60) in the folded position in abutment against the inside of the collar base (50) are partially covered by the retaining tab (62) and the insertion tongue (86) is configured as a continuation of the retaining tab (62) such that the insertion tongue (86) can be introduced into the retaining slot (87).
4. The pack as claimed in claim 3, wherein the insertion tongue (86) is configured as a central continuation of the retaining tab (62).
5. The pack as claimed in claim 1, wherein the recess (49) of the upper wall (47) corresponds in terms of contour and dimensioning to the retaining tab (62), including the insertion tongue (86), such that blanks for the inner collar (46) can be severed from a continuous material web in a waste-free manner.
6. The pack as claimed in claim 1, wherein the retaining slot (87) for receiving the insertion tongue (86) is configured as a C-shaped punching formation.
7. The pack as claimed in claim 1, wherein the inner wrapper (14) of the inner pack (11) comprises temporary venting openings (78), in particular U-shaped or C-shaped punching formations via which air can be directed away from the inner pack (11) when the inner pack (11) is finished and closed, wherein, once the inner pack (11) has been vented, the venting openings (78) are closed.
8. The pack as claimed in claim 7, wherein the venting openings are closed by virtue of fins of seams (36, 37, 38) being folded over.
9. A pack for cigarettes (10), comprising a dimensionally stable outer pack (12), in particular configured in the form of a hinge-lid box, and also comprising an inner pack (11) configured in the form of a sealed block with an inner wrapper (14) made of preferably aroma-tight and moisture-tight, thermally sealable sheet material for wrapping a cigarette group (13) and having an inner collar (46) partially enclosing the cigarette group (13), wherein the inner pack (11), in the region of an inner end wall (41) and in an adjacent region of an inner front wall (39), has a removal opening (51) with a closure label (54) which can be used a number of times, comprising: a) the inner collar (46) of the inner pack (11) has at least one front wall or upper wall (47), lateral supporting walls (48), and a collar base (50); b) the inner collar (46) has a longitudinal dimension, in particular in the region of the upper wall (47), corresponding essentially to a corresponding dimension or height of the inner pack (11); c) the upper wall has a recess (49) in a region facing the removal opening (51) of the inner pack; d) the lateral supporting walls (48) and the collar base (50) are fixed in the folded position, namely by abutment against the cigarette group (13), in particular by additional folding flaps which ensure a form-fitting and/or force-fitting retaining position; e) corner flaps (60) arranged on the supporting walls (48) in continuation of the supporting walls (48); f) the corner flaps (60) are delimited from the collar base (50) by punching lines (61) and folded via a folding line to butt against the inside of the collar base (50) when the collar base (50) is erected; g) the collar base (50) and the corner flaps (60) are fixed in a folded position on account of the form-fitting and/or force-fitting anchoring; and h) a retaining tab (62), an insertion tongue (86), and a retaining slot (87), wherein an arrangement, on a free periphery of the collar base (50), of the retaining tab (62) which, in the folded position in abutment against the inside of the collar base (50), fixes the corner flaps (60), in the folded position, in a form-fitting manner, in particular by plug-in connection, that is to say by virtue of the insertion tongue (86), which is connected to the retaining tab (62), being introduced into the retaining slot (87) in the region of a folding edge or folding line (59) between the upper wall (47) and the collar base (50).
10. The pack as claimed in claim 9, wherein the corner flaps (60) are connected to a corner region of the collar base (50) via residual connections (90), wherein the residual connections (90) can be severed when the folding flaps are being erected.
11. The pack as claimed in claim 9, wherein the corner flaps (60) in the folded position in abutment against the inside of the collar base (50) are partially covered by the retaining tab (62) and the insertion tongue (86) is configured as a continuation of the retaining tab (62) such that the insertion tongue (86) can be introduced into the retaining slot (87).
12. The pack as claimed in claim 11, wherein the insertion tongue (86) is configured as a central continuation of the retaining tab (62).
13. The pack as claimed in claim 9, wherein the recess (49) of the upper wall (47) corresponds in terms of contour and dimensioning to the retaining tab (62), including the insertion tongue (86), such that blanks for the inner collar (46) can be severed from a continuous material web in a waste-free manner.
14. The pack as claimed in claim 9, wherein the retaining slot (87) for receiving the insertion tongue (86) is configured as a C-shaped punching formation.
15. The pack as claimed in claim 9, wherein the inner wrapper (14) of the inner pack (11) comprises temporary venting openings (78), in particular U-shaped or C-shaped punching formations via which air can be directed away from the inner pack (11) when the inner pack (11) is finished and closed, wherein, once the inner pack (11) has been vented, the venting openings (78) are closed.
16. The pack as claimed in claim 15, wherein the venting openings are closed by virtue of fins of seams (36, 37, 38) being folded over.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) Further details and features of the packs and of the measures for producing the same will be explained hereinbelow with reference to the drawings, in which:
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DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
(18) Sealed packs for cigarettes 10 (or other aroma-sensitive smoking articles) comprise an inner pack 11 and an outer pack 12. The inner pack is a sealed block, that is to say a cigarette group 13 which is enclosed by an inner wrapper 14 made of aroma-tight and moisture-tight, sealable sheet material, possibly in a number of layers, to form a pack unit which is sealed in relation to external influences. The outer pack 12 should be designed largely in the form of a standard cigarette pack made of (thin) cardboard or similar packaging material, in the present case a hinge-lid box with a box part 15 and lid 16. The hinge-lid box 12 has a collar, that is to say a pack collar 17, which comprises a separate blank. Said pack collar, as known in principle, is arranged in the box part 15 and projects partially out of the same. The pack collar 17 encloses the inner pack 11.
(19) The outer pack 12 configured in the form of a hinge-lid box is produced from a blank according to
(20) In an analogous manner, the lid 16 comprises a lid front wall 23, lid rear wall 24, an upper end wall 25 and (inner and outer) lid side flaps 26, 27. The latter form double-layered lid side walls in continuation of the side walls 21/22 of the box part. The latter is connected in one piece to the lid 16 by a transversely directed linear articulation 28 between the box rear wall 19 and lid rear wall 24.
(21) The collar or pack collar 17 (
(22) The inner pack 11 has an inner wrapper 14 which encloses the cigarette group 13 on all sides and is made of a sheet-material blank 34. The latter is severed from a continuous sheet-material web 35 (folded to form a tubular structure) and forms a sealed block which is closed on all sides and has a (large-surface-area) inner front wall 39, an inner rear wall 40 located opposite, an upper inner end wall 41, a lower inner base wall 42 and narrow, upright inner side walls 43, 44. A connecting seam 36 is preferably arranged on the rear side, that is to say in the region of the inner rear wall 40, to be precise in the transverse direction (transversely to the longitudinal orientation of the cigarettes 10). Closure seams 37, 38 are each arranged in the region of narrow, mutually opposite walls of the inner pack 11, that is to say in the region of the (upright) inner side walls 42, 44, preferably (approximately) in the center thereof.
(23) Double-walled sealing flaps or fins produced during production of the seams 36, 37, 38 are folded over against the respective pack wall, butt against the same and are connected thereto if appropriate (thermally). In the case of the transversely directed connecting seam 36, the interconnected fins are folded preferably upward (in the direction of the inner end wall 41
(24) The folding and sealing produce projections 45 at the ends of the lateral closure seams 37, 38, which are designed in the form of fin seams. These projections each include a triangular gusset of the wrapper and a rectangular endpiece of the fin seam. The projections 45 are folded downward in the region of the inner wall 41 (for abutment against the inner side wall 43, 44), and are folded upward in the region of the inner base wall 42. This folded position means that the projections 45 are covered by the pack collar and/or by the side walls of the outer pack 12. An advantageous solution, however, is the one which is shown in
(25) This supporting mechanism within the inner pack 11 is in an inner collar 46 and consists of (thin) cardboard or similar material which can be subjected to mechanical and thermal loading. The inner collar 46 can be severed in the form of a separate blank preferably from a continuous material web, preferably a specifically designed collar web 58 according to
(26) Special measures are provided in order to stabilize the folded position of the inner collar 46. Corner flaps 60 are formed in continuation of the lateral supporting walls 48. These corner flaps are delimited from the collar base 50 by a punching line 61 and connected to the lateral supporting walls 48 such that they can be folded via a folding line in extension of the folding line 59. In the folded position, the corner flaps 60 butt against the inside of the erected collar base 50.
(27) The three-dimensional folded position of the inner collar 46 is stabilized in that the corner flaps 60 are fixed in the folded position. In the present case, mechanical clamping or retaining means are used for this purpose. According to
(28) Particular dimensioning of the folding flaps means that the corner flaps 60 are fixed predominantly in a form-fitting manner in the folded position (
(29) The inner collar 46 extends preferably over the entire height or longitudinal dimension of the inner pack 11. On the side which is directed toward the inner end wall 41, the upper wall 47 forms a recess 49, as is customary in a collar. In terms of contour and dimensioning, the recess 49 corresponds to the retaining tab 62, including the insertion tongue 86.
(30) Alternative forms of the inner collar 46, which differ in respect of specific details, are illustrated in
(31) The inner collar 46 according to
(32) The retaining tab 62 is designed, and connected to the collar base 50, in a particular manner, that is to say with a folding line 85 which is set back in relation to an outer, free peripheral edge of the collar base 50. An appropriate punching formation frees the retaining tab 62 in relation to the collar base 50 as far as the folding line 85. The particular configuration of the collar edges 88 means that the corner flaps 60 have a width X which is smaller than the given overall width of the collar base 50. The folding line 85 is offset, and this therefore ensures, between the folding lines 59 and 85, a distance which corresponds to the width X of the corner flaps 60 and results in precise form-fitting anchoring of the corner flaps 60. The retaining tab 62 here is designed such that a relatively large (covering) surface is available for the corner flaps 60, and only a small (central) insertion tongue 86.
(33) A further special feature of the inner collars 46 results from production. The corner flaps 60 are each connected via residual connections 90 to the collar base 50, the rest of which is severed from the corner flaps 60 by the punching line 61. The residual connections 90 formed (on either side) are important during production of the inner collars 46 from a continuous material web or collar web (
(34) The sealed block or the inner pack 11 is provided with a removal opening 51 which can be closed a number of times. This opening is bounded by a corresponding punching formation, in the present case by a U-shaped punching line 52, in the sheet material or inner wrapper 14. The punching line 52 encloses a correspondingly designed opening tab 53 in the form of part of the inner wrapper 14. The opening tab 53 is covered by a closure label 54, which can be fixed, by way of a free connecting periphery 55, in particular using (permanent) adhesive over the entire surface area, on a region which encloses the removal opening 51. The closure label 54 has an adhesive-free grip tab 56 on the free (lower) periphery. This grip tab is gripped manually in order for the closure label 54 to be actuated (opened or closed).
(35) The punching line 52, and thus the removal opening 51, can extend, as shown, in the upper part of the inner front wall 39, along the inner end wall 41 and in an adjacent peripheral region of the inner rear wall 40. The closure label 54 is designed, and arranged, correspondingly. A connecting limb 74 fixes the closure label 54 in the region of the inner rear wall 40.
(36) The inner pack 11 is positioned in the outer pack 12 such that the closure label 54 is located with the adhesive-containing regionconnecting periphery 55above the closing edge 33 of the box front wall 18 (
(37) The operations of producing inner packs 11 and of combining these with an outer pack 12 are illustrated schematically in
(38) Prior to transfer to the unit 13/46, the sheet-material web 35 is provided with the U-shaped punching line 52 for the opening tab 53, to be precise likewise in a transversely directed relative position. The closure label 54 is positioned on the outside or upper side of the sheet-material web 35, in the region of the punching line 52, and connected thereto by adhesive bonding, in a manner offset in relation to the longitudinal center plane of the sheet-material web 35, this being in line with the imminent folding process.
(39) The sheet-material web 35 prepared in this way is positioned, during continuous transportation, on the upper side of the successive units 13/46, to be precise such that the opening aid 52, 54 is located in the region of the sideways-directed recess 49 of the upper wall 47.
(40) The sheet-material web 35, of appropriate width, is folded around the successive units 13/46 by appropriate guide mechanisms, and therefore the units 13/46 are located in a tubular structure formed by the sheet-material web 35. In a downstream longitudinal sealing station 64, the longitudinal peripheries of the sheet-material web 35, these being produced continuously on the underside of the movement path, are sealed by sealing mechanisms to form the connecting seam 36. For this purpose, rotating, disk-like sealing wheels 65 are arranged beneath the movement path. These are immediately followed by a mechanism for continuously folding over the initially projecting, interconnected peripheral flaps of the connecting seam 36 (fin seam) running in the longitudinal direction of the sheet-material web 35. A pressure-exerting roller 73 folds over the connecting seam 36 as the sheet-material web 35 advances.
(41) The tubular sheet-material web 35 with the units 13/46 wrapped therein then passes into a second sealing station, that is to say a transverse sealing station 66. The sealing mechanisms which become active here are ones which apply transversely directed closure seams 37, 38 for two successive inner packs 11 at the same time in one operating cycle. The distances between the units 13/46 are selected such that the adjacent closure seams 37, 38 produced in a waste-free manner and, at the same time, a severing cut is applied between the two, centrally in the region corresponding to wide (double) sealing seams. The sealing mechanisms of the transverse sealing station 66 are designed in the form of sealing rollers 67 with radially projecting sealing jaws 68 and central severing blades. Sealing mechanisms or sealing rollers 67 are arranged above and beneath the sheet-material web 35 and are controlled such that lower and upper sealing jaws 68 take effect at the same time, in which case the two layers of the fin seams are connected (approximately) halfway up the units 13/46, and severed at the same time, in a short sealing cycle.
(42) One special feature resides in the fact that, during production of the closure seams 37, 38 or thereafter, the closed sealed blockinner pack 11is vented. For this purpose, the inner wrapper 14 is provided with venting openings 78. In the present case, these are designed in the form of a U-shaped punching formation and are applied to the sheet-material web 35 when the latter is in the non-folded, planar state. The venting openings 78 are located in a region which is closed, or concealed by material layers, when the inner pack 11 is in the finished state. In the present case, the (U-shaped) venting openings 78 are adjacent to the two longitudinal peripheries of the sheet-material web 35, such that the venting openings 78 are arranged in the region of a rear half of the inner side walls 43 and/or 44, alongside the closure seams 37, 38. Once the sealed block has been closed (completely), the venting is carried out, that is to say air is directed away from the inner pack 11 via the free openings 78. Thereafter, the fins of the closure seams 37, 38 are folded over (in the direction of the rear side), and therefore the venting openings 78 are covered over. (Thermal) fixing of the closure seams 37, 38 provides for full sealing of the sealed block in the region of the venting openings 78.
(43) The air from the sealed block 11 can be directed away by suction extraction. In the present case, the air is channeled away mechanically, that is to say by the application of pressure, via the venting openings 78. The transverse sealing station 66 is followed by a venting station 79. The air is pushed out of the inner pack with the aid of pressure-exerting mechanisms, which take effect on a plurality of surfaces of the inner pack 11. In the present case, a venting roller 80 takes effect on the upper side (inner front wall 39) and/or on the underside. Pressure-exerting mechanisms, that is to say, in the present case (transversely movable) venting rails 81, likewise take effect laterally, these applying the venting pressure to the sideways-directed surfacesend surface 41 and base surface 42.
(44) In a subsequent operating step, the flaps of the closure seams 37, 39 are folded over into the described position. For this purpose, the inner packs 11 are conveyed through a (transversely directed) folding and sealing station 82. In a first step, the fins of the closure seams 37, 38 (said fins being located laterally, as seen in the conveying direction) are folded over by folding mechanisms, that is to say fixed-location folding rails 83 on either side of the movement path of the inner packs 11. This is followed by sealing mechanisms taking effect in order to seal the folded fins onto the inner side walls 43, 44. Sealing rollers 84 are used for this purpose. The folding and sealing station 82 is assigned to a transversely directed conveying portion of the inner packs 11 following the transverse sealing station 66. A special feature is realized in respect of the projections 45 of the closure seams 37, 38. The latteras an alternative to being folded over against the inners side walls 43, 44are folded inward, that is to say into a position between the inner side walls 43, 44, on the one hand, and the inner collar 46 or the lateral supporting walls 48, on the other hand. The visible closure seams 37, 38 thus extend over the entire height of the inner side walls 43, 44 and terminate (approximately) flush with the inner end wall 41 and the inner base wall 42 (
(45) Then the inner packs 11possibly by being deflected againare transferred into a pack path 69, in which the inner packs 11with the cigarettes oriented in the conveying directionare transported with the inner base wall 42 located at the front (
(46) In the region of a downstream collar station 70, prefabricated blanks of the pack collar 17 are fed in the transverse direction and positioned precisely on the upper side of the inner packs 11, such that the closure label 54, including the grip tab 56, is located within the recess 31 of the pack collar 17.
(47) The operation of folding the pack collar 17 is completed by the collar side walls 30 being positioned on the inner side walls 43, 44. The sealed block (inner pack 11) completed in this way is then introduced into a partially folded outer pack 12 configured in the form of a hinge-lid box. The latter is located in a pocket of a folding turret in such a relative position that the side which is directed toward the lid 16 is open and, opposite this, the base wall 20 has been erected along with the box front wall 18 and side flaps. The inner side flaps 21 and lid side flaps 26 are also in the erected state. Accordingly, the sealed blockincluding the pack collar 17can be introduced in a conventional manner into the outer pack 12 and the latter can then be completed. A conventional packaging machine for hinge-lid boxes can be used for this essential task.
LIST OF DESIGNATIONS
(48) 10 Cigarette 11 Inner pack 12 Outer pack 13 Cigarette group 14 Inner wrapper 15 Box part 16 Lid 17 Pack collar 18 Box front wall 19 Box rear wall 20 Base wall 21 Side flap 22 Side flap 23 Lid front wall 24 Lid rear wall 25 End wall 26 Lid side flap 27 Lid side flap 28 Linear articulation 29 Collar front wall 30 Collar side wall 31 Recess 32 Transverse edge 33 Closing edge 34 Sheet-material blank 35 Sheet-material web 36 Connecting seam 37 Connecting seam 38 Closure seam 39 Inner front wall 40 Inner rear wall 41 Inner end wall 42 Inner base wall 43 Inner side wall 44 Inner side wall 45 Projection 46 Inner collar 47 Upper wall 48 Supporting wall 49 Recess 50 Collar base 51 Removal opening 52 Punching line 53 Opening tab 54 Closure label 55 Connecting periphery 56 Grip tab 57 Label periphery 58 Collar web 59 Folding line 60 Corner flap 61 Punching line 62 Retaining tab 63 Sheet-material station 64 Longitudinal sealing station 65 Sealing wheel 66 Transverse sealing station 67 Sealing roller 68 Sealing jaw 69 Pack path 70 Collar station 71 Peripheral flap 72 Peripheral flap 73 Pressure-exerting roller 74 Connecting limb 75 Transverse punching formation 78 Venting opening 79 Venting station 80 Venting roller 81 Venting rail 82 Folding and sealing station 83 Folding rail 84 Sealing roller 85 Folding line 86 Insertion tongue 87 Retaining slot 88 Collar edge 89 Oblique corner 90 Residual connection