Abstract
A carton sleeve of a composite material for producing a carton is illustrated and described, including: a sleeve area, a longitudinal seam that joins two edges of the composite material to form an all-round carton sleeve, and two pseudo fold lines that pass through the sleeve area, wherein the carton sleeve is folded along both pseudo fold lines. In order to allow the production of cartons with a more complex geometry, it is envisaged that the carton sleeve in the region of the sleeve area has no further or no continuous fold lines apart from the two pseudo fold lines. In addition a carton of such a carton sleeve as well as a method for producing a carton from such a carton sleeve are illustrated and described.
Claims
1. A carton sleeve of a composite material for producing a carton, comprising: a sleeve area comprising a front partial area and a rear partial area, a longitudinal seam, which joins two edges of the composite material to form an all-round carton sleeve and is arranged on the rear partial area, two pseudo fold lines, which pass through the sleeve area, and at least one floor area and at least one gable area, wherein the carton sleeve is folded along the two pseudo fold lines, and the at least one floor area and at least one gable area are arranged on opposite sides of the carton sleeve, each comprising two rectangular areas, and gable areas, and six triangular areas, and the carton sleeve in a region of the front partial area has no further fold lines between the two pseudo fold lines.
2. The carton sleeve according to claim 1, wherein the carton sleeve is folded flat along the two pseudo fold lines by an angle of about 180.
3. The carton sleeve according to claim 1, wherein the pseudo fold lines pass through a point of contact of three adjacent triangular areas of the floor area and through a point of contact of three adjacent triangular areas of the gable area.
4. The carton sleeve according to claim 1, wherein the gable area on a rear side of the carton sleeve has a shorter length than the length of the gable area on a front side of the carton sleeve.
5. The carton sleeve according to claim 1, wherein the front side of the carton sleeve has a front gable area that is bounded with respect to the sleeve areas by a front edge that is convexly curved at least over some sections.
6. The carton sleeve according to claim 5, wherein the front gable area comprises upper edge regions with convexly curved embossed lines.
7. The carton sleeve according to claim 1, wherein the front gable area has a centrally arranged zone of weakness.
8. The carton sleeve according to claim 1, wherein the pseudo fold lines are scored on the outside of the carton sleeve.
9. The carton sleeve according to claim 1, wherein the fold lines are scored on the inside of the carton sleeve.
10. A carton of a composite material, wherein the carton is produced from a carton sleeve according to claim 1, closed in the regions of the floor areas and gable areas, and has no, or no continuous, fold edges in the region of the sleeve area.
11. The carton according to claim 10, wherein the fold lines are provided on the rear partial area, and are interrupted and/or subdivided at least over some sections.
12. The carton according to claim 10, wherein the partial regions of the sleeve area adjoining the pseudo fold lines are arranged in an angular range between 160 and 200 with respect to one another.
13. The carton according to claim 10, wherein at least one ear is attached in the lower region of the carton to the floor areas.
14. The carton according to claim 10, wherein at least one ear is attached in the upper region of the carton to the sleeve area.
15. A carton of a composite material, wherein the carton is produced from a carton sleeve according to claim 1, closed in the regions of the floor areas and the gable areas, and has no, or no continuous, fold edges in the region of the front sleeve area.
16. A method for producing a carton from a carton sleeve of a composite material, comprising: providing a carton sleeve according to claim 1, and folding the sleeve area of the carton sleeve back along both pseudo fold lines.
17. The method according to claim 16, wherein the partial regions of the sleeve area adjoining the pseudo fold lines lie, after having been folded back again, in an angular range between 160 and 200 with respect to one another.
18. A carton sleeve of a composite material for producing a carton, comprising: a sleeve area comprising a front partial area and a rear partial area, a longitudinal seam, which joins two edges of the composite material to form an all-round carton sleeve and is arranged on the rear partial area, two pseudo fold lines, which pass through the sleeve area, and at least one floor area and at least one gable area, wherein the carton sleeve is folded along the two pseudo fold lines, and the at least one floor area and at least one gable area are arranged on opposite sides of the carton sleeve, each comprising two rectangular areas, and gable areas, and six triangular areas, and the carton sleeve in a region of the front partial area has no continuous fold lines between the two pseudo fold lines, and the gable area on the rear side of the carton sleeve has a shorter length than the length of the gable area on the front side of the carton sleeve.
19. The carton sleeve according to claim 18, wherein fold lines are provided on the rear partial surface, and are interrupted and/or subdivided at least in some sections.
20. The carton sleeve according to claim 19, wherein the fold lines arranged on the rear partial surface are formed as at least one fold line stump, and are arranged in the at least one floor region and/or the at least one gable region of the carton sleeve.
21. The carton sleeve according to claim 19, wherein the fold lines arranged on the rear partial surface are formed as subdivided fold lines that run substantially parallel to one another.
22. A carton of a composite material, wherein the carton is produced from a carton sleeve according to claim 18, closed in the regions of the floor areas and gable areas, and has no, or no continuous, fold edges in the region of the sleeve area.
23. A carton of a composite material, wherein the carton is produced from a carton sleeve according to claim 18, closed in the regions of the floor areas and the gable areas, and has no, or no continuous, fold edges in the region of the front sleeve area.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The invention is described in more detail hereinafter with the aid of a simply preferred exemplary embodiment. In the drawings the figures show:
(2) FIG. 1A: a blank known from the prior art for folding a carton sleeve,
(3) FIG. 1B: a carton sleeve known from the prior art, which is formed from the blank illustrated in FIG. 1A, in the folded flat state,
(4) FIG. 1C: the carton sleeve of FIG. 1B in the unfolded state,
(5) FIG. 1D: the carton sleeve of FIG. 1C with pre-folded floor and gable areas,
(6) FIG. 1E: a carton known from the prior art, which is formed from the blank shown in FIG. 1A, after the welding,
(7) FIG. 1F: the carton from FIG. 1E with attached ears,
(8) FIG. 2A: a blank for the production of a first embodiment of a carton sleeve according to the invention,
(9) FIG. 2B: a carton sleeve that is formed from the blank shown in FIG. 2A, in a front view,
(10) FIG. 2C: the carton sleeve of FIG. 2B in a rear view,
(11) FIG. 2D: the carton sleeve of FIG. 2B and FIG. 2C in the unfolded state,
(12) FIG. 2E: the carton sleeve from FIG. 2D with outwardly pre-folded floor and gable areas, in a perspective rear view,
(13) FIG. 2F: a first embodiment of a carton according to the invention, which is formed from the carton sleeve shown in FIG. 2E, after the closing and with attached opening, pouring and closure element, in a perspective front view,
(14) FIG. 2G: the carton of FIG. 2F with attached upper ears and folded-in lower ears,
(15) FIG. 2E: the carton sleeve from FIG. 2 with inwardly pre-folded floor areas and outwardly pre-folded gable areas, in a perspective rear view,
(16) FIG. 2F: a further embodiment of a carton according to the invention, which is formed from the carton sleeve shown in FIG. 2E, after the closing and with attached opening, pouring and closure element, in a perspective front view,
(17) FIG. 2G: the carton of FIG. 2F with attached upper ears and attached lower fin seal,
(18) FIG. 3A: a blank for the production of a second embodiment of a carton sleeve according to the invention,
(19) FIG. 3B: a carton sleeve that is formed from the blank shown in FIG. 3A, in a front view,
(20) FIG. 3C: the carton sleeve of FIG. 3B in a rear view,
(21) FIG. 3D: the carton sleeve from FIG. 3B and FIG. 3C in the unfolded state,
(22) FIG. 3E: the carton sleeve from FIG. 3D with outwardly pre-folded floor and gable areas, in a perspective rear view,
(23) FIG. 3F: a first embodiment of a carton according to the invention, which is formed from the carton sleeve shown in FIG. 3E, after the closing and with attached opening, pouring and closure element, in a perspective front view,
(24) FIG. 3G: the carton from FIG. 3F with attached upper ears and folded-in lower ears,
(25) FIG. 3E: the carton sleeve from FIG. 3D with inwardly pre-folded floor areas and outwardly pre-folded gable areas, in a perspective rear view,
(26) FIG. 3F: a further embodiment of the carton according to the invention, which is formed from the carton sleeve shown in FIG. 3E, after the closing and with attached opening, pouring and closure element, in a perspective front view, and
(27) FIG. 3G: the carton of FIG. 3F with attached upper ears and applied lower fin seal.
DESCRIPTION OF THE INVENTION
(28) In FIG. 1A a blank 1 known from the prior art is shown, from which a carton sleeve can be formed. The blank 1 can include several layers of different materials, for example paper, cardboard, plastic or metal, in particular aluminium. The blank 1 has several fold lines 2, which are intended to facilitate the folding of the blank 1 and which subdivide the blank 1 into several areas. The blank 1 can be subdivided into a first side area 3, a second side area 4, a front area 5, a rear area 6, a sealing area 7, floor areas 8 and gable areas 9. A carton sleeve can be formed from the blank 1, in which the blank 1 is folded in such a way that the sealing area 7 can be joined, in particular welded, to the front area 5.
(29) FIG. 1B shows a carton sleeve 10 known from the prior art in the state when folded flat. The regions of the carton sleeve already described in connection with FIG. 1A are provided with corresponding reference numerals in FIG. 1B. The carton sleeve 10 is formed from the blank 1 shown in FIG. 1A. For this purpose the blank 1 is folded in such a way that the sealing area 7 and the front area 5 are arranged overlapping, so that the two areas can be welded flat with one another. As a result a longitudinal seam 11 is formed. In FIG. 1B the carton sleeve 10 is shown in a flat, folded-together state. In this state one side area 4 (hidden in FIG. 1B) lies underneath the front area 5, while the other side area 3 lies on the rear area 6 (hidden in FIG. 1B). In the flat, folded-together state a plurality of carton sleeves 10 can be stacked and transported in a particularly space-saving manner. Accordingly the carton sleeves 10 are often stacked at the production site and transported in the stacked state to the filling site. Only there are the carton sleeves 10 separated and unfolded, so as to be able to be filled with a product, for example with a beverage.
(30) In FIG. 1C the carton sleeve 10 of FIG. 1B is illustrated in the unfolded state. Here too the regions of the carton sleeve 10 already described in connection with FIG. 1A or FIG. 1B are provided with corresponding reference numerals. The unfolded state is understood to mean a configuration in which an angle of about 90 is formed between the two respectively adjacent areas 3, 4, 5, 6, so that the carton sleeve 10depending on the shape of these areashas a square or rectangular cross-section. Corresponding to this the oppositely lying side areas 3, 4 are arranged parallel to one another. The same applies to the front area 5 and the rear area 6.
(31) FIG. 1D shows the carton sleeve 10 of FIG. 1C in the pre-folded state, i.e. in a state in which the fold lines 2 in the region of the floor areas 8 and also in the region of the gable areas 9 have been pre-folded. Those regions of the floor areas 8 and of the gable areas 9 that adjoin the front area 5 and the rear area 6, are also termed rectangular areas 12. The rectangular areas 12 are folded inwardly during the pre-folding and subsequently form the floor and the gable of the carton. Those regions of the floor areas 8 and of the gable areas 9 that adjoin the side areas 3, 4, are on the other hand termed triangular areas 13. The triangular areas 13 are folded outwardly during the pre-folding and form projecting regions of excess material, which are also termed ears 14 and can be attached to the carton sides, for example by a bonding process, in a subsequent production step.
(32) FIG. 1E shows a carton 15 known from the prior art, which is formed from the blank shown in FIG. 1A. The carton 15 is shown after the sealing, i.e. in the filled and closed state. In the region of the floor areas 8 and in the region of the gable areas 9 a fin seal 16 is formed after the closing. The ears 14 and the fin seal 16 are shown projecting in FIG. 1E. The ears 14 as well as the fin seal 16 are attached in a subsequent production step, for example by a bonding technique, and in this connection also only the ears 14 can be sealed on, whereby the fin seal 16 is necessarily displaced towards the side.
(33) FIG. 1F shows the carton 15 of FIG. 1E with attached ears 14. In addition the fin seals 16 are also attached to the carton 15. The upper ears 14 arranged in the region of the gable area 9 are turned down and attached flat to the two side areas 3, 4. Preferably the upper ears 14 are bonded or welded to the two side areas 3, 4. The lower ears 14 arranged in the region of the floor area are also turned down, but are however attached flat to the dome-shaped curved lower side of the carton 15, which is formed by two rectangular areas 12 of the floor area 8. Preferably also the lower ears 14 are bonded or sealed to the carton 15, in particular to the rectangular areas 12.
(34) FIG. 2A shows a blank 1 for the production of a first arrangement of a preferred exemplary embodiment of a carton sleeve according to the invention. The regions of the blank already described in connection with FIG. 1A to FIG. 1F are provided in FIG. 2A with corresponding reference numerals. The floor area 8 and the gable area 9 remain unaltered in the blank 1 compared to the blank 1 of FIG. 1A.
(35) A first difference is however the fact that the two side areas 3, 4, the front area 5 and the rear area 6, are combined to form a single sleeve area 17. The sleeve area 17 extendsapart from the sealing area 7over the whole width of the blank 1.
(36) A second difference is the fact that the blank 1 has two pseudo fold lines 18 in the region of the sleeve area 17. The two pseudo fold lines 18 extend parallel to one another and pass through a point of contact SB of three adjacent triangular areas 13 of the floor area 8 and through a point of contact SG of three adjacent triangular areas 13 of the gable areas 9. The sleeve area 17 is subdivided into an inner partial area 17A and into two outer partial areas 17B by the pseudo fold lines 18. The inner partial area 17A lies between both pseudo fold lines 18 and the outer partial areas 17B lie outside the two pseudo fold lines 18.
(37) A further difference is in the shape of the gable area 9: whereas the length L8 of the floor area 8 is constant over the whole width of the blank 1, the length of the gable area 9 adopts different values. Adjoining the outer partial regions 17B of the sleeve area 17, the gable area 9 has a reduced length L9. Adjoining the inner partial region 17a of the sleeve area 17 the gable area 9 on the other hand has an enlarged length L9 max. This configuration means that the inner partial region 17A has a lower height than the outer partial regions 17B. An inclined, slanted forwardly area is formed for the carton to be produced.
(38) Instead of the rectangular area 12 in the gable region of the known carton sleeve according to FIG. 1D, the front gable area in the illustrated and to this extent preferred exemplary embodiment is formed from a gable area 12G with a front edge 19 that is convexly curved at least over some sections. In the upper corner regions of the gable area 12G two curved embossed lines 19 can be recognised, which confer on the gable area 12G a graceful shape resembling an ellipse. A circular line of weakness S is show centrally within this gable area 12G. In this connection this is preferably a circular recess in the carrier material, which is spanned by the remaining plastic and optionally aluminium layers of the composite material, to form a so-called prelaminated hole. Its diameter can be matched to the size of the cutting element of a pouring element to be applied around the line of weakness, or can be formed relatively small in order to allow the insertion of a drinking straw.
(39) The floor areas 8 have two corner points E8 and the gable area 9 have two corner points E9. The corner points E8, E9 form corner points of the carton to be produced from the blank 1. With each corner point E8 of a floor area 8 there is associated a corresponding corner point E9 of a gable area 9, which is respectively that corner point E9 that is arranged above this corner point E8 when the carton is upright. A fold line 2 passes through in each case two corresponding corner points E8, E9, the said fold line serving for the formation of a rear (vertically extending) edge of the carton to be produced. However, in the blank 1 shown in FIG. 2Aas well as in the carton sleeve produced therefrom and the carton produced therefromonly two continuous fold lines 2 are present. According to the first teaching of the invention no fold lines are provided between the further corner points of the floor areas 8 and the corresponding corner points of the gable areas 9, i.e. on the font sleeve area 17A.
(40) FIG. 2B shows a first arrangement of a carton sleeve 10 according to the invention, which is formed from the blank 1 shown in FIG. 2A, in a front view. The regions of the carton sleeve 10 already described in connection with FIG. 1A to FIG. 2A are provided in FIG. 2B with corresponding reference numerals. The carton sleeve 10 is formed in two steps from the blank 1: first of all the blank 1 is folded along the two pseudo fold lines 18. Then the two partial regions 17A, 17B of the sleeve area 17 are joined, in particular welded, to one another in the region of the sealing area 7, whereby a longitudinal seam 11 (hidden in FIG. 2B) is formed. The carton sleeve 1 thus has a surrounding structure closed in the circumferential direction, with an opening in the region of the floor area 8 and with an opening in the region of the gable area 9. In the front view the inner partial region 17A of the sleeve area 17 is visible, which is bounded on both sides by the pseudo fold lines 18. The remaining partial regions 17B of the sleeve surface 17 are hidden on the rear side of the carton sleeve 10 and are therefore hidden in FIG. 2B.
(41) In FIG. 2C the carton sleeve 1 of FIG. 2B is illustrated in a rear view. The regions of the carton sleeve already described in connection with FIG. 1A to FIG. 2B are provided in FIG. 2C with corresponding reference numerals. In the rear view the two outer partial regions 17B of the sleeve area 17 are visible, which are joined to one another by the longitudinal seam 11 and are bounded on both sides by the pseudo fold lines 18. The front partial region 17A of the sleeve area 17 is hidden on the front side of the carton sleeve 10 and is therefore hidden in FIG. 2C.
(42) FIG. 2D shows the carton sleeve 1 of FIG. 2B and FIG. 2C in the unfolded state. The regions of the carton sleeve already descried in connection with FIG. 1A to FIG. 2C are provided in FIG. 2D with corresponding reference numerals. The unfolded state is achieved by folding back the carton sleeve 1 along the pseudo fold lines 18 passing through the sleeve area 17. The folding back takes place with an angle of about 180. The folding back along the pseudo fold lines 18 has the result that the two partial regions 17A, 17B of the sleeve area 17 adjoining the pseudo fold line 18 no longer lie flat against one another, but are arranged in the same plane. The carton sleeve 10 is therefore folded only in its flat state (FIG. 2B, FIG. 2C) along the pseudo fold lines 18; in the unfolded state (Fig. D) the carton sleeve 10 (just like the carton to be produced therefrom) is on the other hand no longer folded along the pseudo fold lines 18. Hence the expression pseudo fold lines 18.
(43) In FIG. 2E the carton sleeve 10 of FIG. 2D is illustrated with pre-folded floor and gable areas. The regions of the carton sleeve already described in connection with FIG. 1A to 2D are provided in FIG. 2E with corresponding reference numerals. The pre-folded state denotes (as in FIG. 1D) a state in which the fold lines 2 have been pre-folded in the region of the floor areas 8 and also in the region of the gable areas 9. The rectangular areas 12 are folded inwardly during the pre-folding and subsequently form the floor and the gable of the carton. The triangular areas 13 are folded outwardly during the pre-folding and form projecting regions of excess material, which are termed ears 14, and in a subsequent production step are attached to the side areas of the carton, for example by a bonding technique.
(44) FIG. 2F shows a first arrangement of a carton 15 according to the invention, which is formed from the carton sleeve 10 shown in FIG. 2B, after the welding. The regions of the carton already described in connection with FIG. 1A to FIG. 2E are provided in FIG. 2E with corresponding reference numerals. The carton 15 is shown after the welding, i.e. in the filled and closed state. On account of the increased length L9 max of the gable area 9 in its area adjoining the inner partial region 17A of the sleeve area 17 as well as the reduced length L9 min of the gable area 9 in its region adjoining the outer partial regions 17B of the sleeve area 17, an enlarged gable area is formed. On this gable area the carton 15 is provided with a pouring element AE, which extends almost as far as the forwardly arched front edge 19. In the region of the floor areas 8 and in the region of the gable areas 9 a fin seal 16 is formed after the closure. In FIG. 2F the ears 14 and the fin sea 16 are shown projecting. Both the ears 14 and also the fin seal 16 are applied in a later production step, for example by a bonding technique.
(45) In FIG. 2G the carton 15 of FIG. 2F is illustrated with attached ears 14. The regions of the carton already described in connection with FIG. 1A to FIG. 2F are provided in FIG. 2G with corresponding reference numerals. In addition to the ears 14 also the fin seals 16 are attached to the carton 15. The upper ears 14 arranged in the region of the gable area 9 are turned down and laid flat against the sleeve area 17. Preferably the upper ears 14 are bonded or welded to the sleeve area 17. The lower ears 14 arranged in the region of the floor area 8 are likewise turned down, but however are attached flat against the lower side of the carton 15, which is formed by two rectangular areas 12 of the floor area 8. Preferably also the lower ears 14 are bonded or welded to the carton 15, in particular to the rectangular areas 12. The carton 15 illustrated 1 FIG. 2G does not however have any fold edges in the region of the front sleeve area 17A. The front side of the carton forwardly arched according to the invention can be clearly recognised in the horizontal section illustrated on the right by the plane X of the carton. The straight carton edges 2 at the rear carton edges extend from the lower corner points E8 up to the upper corner points E9.
(46) FIG. 2E also illustrates the carton sleeve 10 of FIG. 2D with pre-folded floor and gable areas, and accordingly here too corresponding reference numerals are used. The difference compared to FIG. 2E is that the lower triangular areas 13 are not folded outwardly, but instead are folded inwardly.
(47) FIG. 2F also shows a first arrangement of a carton 15 according to the invention, which is formed from the carton sleeve 10 shown in FIG. 2B, after the sealing and in the filled and closed state. Here too corresponding reference numerals are therefore used. The difference with regard to FIG. 2F is that the triangular areas 13 were not folded outwardly, but instead inwardly, before the welding. Therefore the lower ears 14 do not project outwardly, but extend inwardly. This leads to a shorter fin seal 16.
(48) In FIG. 2G the carton 15 of FIG. 2F is illustrated with attached upper ears 14 and attached upper fin seal 16. Here too corresponding reference numerals are therefore used. The lower fin seal 16 is folded down and attached to the lower side of the carton 15, which is formed by two rectangular areas 12B of the floor area 8. Preferably the fin seal 16 is bonded or welded to the carton 15, in particular to a rectangular area 12B. The difference with respect to FIG. 2G lies in the structure of the floor of the carton 15: in FIG. 2G the ears 14 are arranged underneath the rectangular areas 12B and are thus visible from the lower side; in FIG. 2G on the other hand the rectangular areas 12 are arranged underneath the ears 14 and are thus visible from the lower side.
(49) FIG. 3A shows a blank 1 for the production of a second arrangement of a carton sleeve according to the invention. The blank 1 in FIG. 3A corresponds in the front region to the blank 1 in FIG. 2A, so that here too corresponding reference numerals are used. Also, the blank 1 has in the region of the sleeve area 17 two pseudo fold lines 18. In addition the pseudo fold lines 18 pass through a point of contact SB of three adjacent triangular areas 13 of the floor area 8 and through a point of contact SG of three adjacent triangular areas 13 of the gable areas 9. The sleeve area 17 is subdivided into an inner partial region 17A and into two outer partial regions 17B by the pseudo fold lines 18. The inner partial region 17A lies between both pseudo fold lines 18, and the outer partial region 17B lie outside the two pseudo fold lines 18.
(50) Instead of the continuous rear fold lines of the first exemplary embodiment, here there are no continuous fold lines on the sleeve area 17B, but only relatively short fold line stumps 2 adjacent to one another underneath the corner points E9 and also above the corner points E8, between which extend (after a small interruption) in each case two subdivided fold lines 20 and 20 running substantially parallel to one another, which closely approach one another above and below after a short bend shortly in front of the fold line stumps 2.
(51) Also, underneath in the inner partial region 17A of the sleeve area 17 relatively short fold line stumps 2 are present above the corner points E8, which ensure a particularly good seal of the floor in the case when the carton is produced on a mandrel, without significantly altering the overall impression of the carton.
(52) In FIG. 3B a second arrangement of a carton sleeve 10 according to the invention, which is formed from the blank 1 shown in FIG. 3A, is illustrated in a front view. The carton sleeve 10 in FIG. 3B corresponds largely to the carton sleeve 10 in FIG. 2B, so that here too corresponding reference numerals are used. The difference lies only in the previously described fold line stumps 2 in the lower front partial region 17A of the sleeve area 17 above the corner points E8.
(53) FIG. 3C shows the carton sleeve 10 of FIG. 3B in a rear view. The carton sleeve 10 in FIG. 3C largely corresponds to the carton sleeve 10 in FIG. 2C, so that here too corresponding reference numerals are used. The fold line stumps 2 adjoining one another underneath the corner points E9 and also above the corner points E8 and the subdivided fold lines 20 and 20 extending therebetween in the outer partial region 17B of the sleeve area 17 again form a significant difference.
(54) In FIG. 3D the carton sleeve 10 of FIG. 3B and FIG. 3C is illustrated in the unfolded state. The carton sleeve 10 in FIG. 3D corresponds largely to the carton sleeve 10 in FIG. 2D, so that here too corresponding reference numerals are used. Also, the differences on account of the completely different configuration of the rear side of the carton sleeve due to the subdivided fold lines 20 and 20 can however clearly be recognised.
(55) FIG. 3E shows the carton sleeve 10 of FIG. 3D with pre-folded floor and gable areas. The carton sleeve 10 in FIG. 3E corresponds largely to the carton sleeve 10 in FIG. 2E, so that here too corresponding reference numerals are used. The dissolution of the rear carton edges is however clearly visible especially in the view from behind.
(56) In FIG. 3F a second arrangement of a carton 15 according to the invention, which is formed from the carton sleeve 10 shown in FIG. 3B, is illustrated after the welding, but still with downwardly and upwardly laterally projecting ears 14. The carton 15 in FIG. 3F corresponds largely to the carton 15 in FIG. 2F, so that here too corresponding reference numerals are used. Here too the carton is provided on the gable area with a pouring element AE, which extends almost up to the forwardly arched front edge 19. The different configuration of the rear carton region can however hardly be recognised in the view from the front.
(57) FIG. 3G finally shows the carton 15 of FIG. 3F with attached ears 14. The carton 15 in FIG. 3G corresponds largely to the carton 15 in FIG. 2G, so that here too corresponding reference numerals are used. In this case also the constriction at the rear carton edges due to the subdivided fold lines 20 and 20 is almost unrecognisable in the view from the front.
(58) The FIGS. 3E, 3F and 3G as well as the section X show again the carton sleeve 10 of FIG. 3D with pre-folded floor and gable areas, wherein the ears 14 formed by the lower triangular areas 13 are folded not outwardly, but inwardly. Corresponding reference numerals are again therefore also used in this case. Again, in the section X the forwardly arched front wall of the carton is clearly recognisable. In addition to the fold lines 20 and 20 spanning an area bent by about 45 at the rear carton edges, the ears folded inwardly into the interior of the carton can also clearly be recognised in the section X.
LIST OF REFERENCE NUMERALS
(59) 1, 1, 1: Blank 2, 2: Fold line 2: Fold line stump 3, 4: Side area 5: Front area 6: Rear area 7: Sealing area 8: Floor area 9: Gable area 10, 10, 10: Carton sleeve 11: Longitudinal seam 12B: Rectangular area 12G: Gable area 13: Triangular area 14: Ear 15, 15, 15: Carton 16: Fin seal 17, 17: Sleeve area 17A, 17A, 17B, 17B: Partial region (of the sleeve area 17) 18: Pseudo fold line 19, 19: Front edge, embossed line (of the front gable area 12) 20, 20: Fold lines AE: Pouring element E8: Corner point (of the floor area 8) E9: Corner point (of the gable area 9) S: Line of weakness SB: Contact point (of the triangular areas 13 of the floor area 8) SG: Contact point (of the triangular areas 13 of the gable area 9)
