Abstract:
A pack ( 13 ) for elongate smoking articles encased in an inner wrapping includes a paperboard outer container having a generally rectangular base ( 14 ), four hingedly connected side walls ( 15-20 ) which upstand from the base, and a top panel member ( 22 ) which at least partially closes off the top of the pack. The side walls ( 15-20 ) are substantially the same height as the smoking articles and are secured with respect to the base. Access to the smoking articles is made beside the top panel member ( 22 ).

Description:
FIELD OF THE INVENTION 
     The present invention relates to packs for smoking articles which are elongate in appearance such as cigarettes. 
     BACKGROUND OF THE INVENTION 
     Packs for such smoking articles generally fall into one of three well known types. These are “hard” or “crushproof” packs having a hinged lid portion, “hull and slide” packs having an open ended outer hull in which the slide reciprocates and “soft” packs in which a foil bundle of smoking articles are covered in a paper wrapper which is open at its upper end. The “hard” and “soft” packs are much more popular than the rather old fashioned “hull and slide” packs and tend to appeal to different consumers for different reasons. “Soft” packs are less rigid than “hard” packs and tend to be less bulky after some of the contents have been used. This, however, can lead to damage to the remaining contents due to crushing of the flexible paper wrapper. 
     BRIEF SUMMARY OF THE INVENTION 
     According to the present invention there is provided a pack for elongate smoking articles encased in an inner wrapping, said pack comprising a paperboard outer container having a generally rectangular base, four hingedly connected side walls upstanding therefrom, and top panel means which at least partially closes off the top of the pack, said side walls being substantially the same height as the smoking articles and being secured with respect to the base, and access to the smoking articles being made by way of the top panel means. 
     Preferably said top panel means comprises a single top panel hingedly connected to one of said side walls and one or more securing panels hingedly connected to said top panel and adhesively secured to the inside of one or more of the other side walls. Ideally the top panel comprises a single thickness of paperboard. In some arrangements a single securing panel is provided and is adhesively secured to the side wall opposite said one side wall to which the top panel is connected. Normally said one side wall and said opposite side wall are wider than the other two side walls. 
     With certain embodiments the junctions between adjoining pairs of side walls are bevelled, either as radiussed bevels or as flat, angled bevels. 
     Another preferred feature is that the top panel extends wholly across the top of the pack and has a removable portion defined by lines of weakening such as perforations. 
     In one type of construction the base is hingedly connected at opposite edges to said one side wall and the opposite side wall, both of which side walls are each hingedly connected to oppositely disposed side wall portions, the side wall portions of said one side wall being adhesively secured to the respective side wall portions of the opposite side wall to produce the other two side walls. 
     With many embodiments the pack also incorporates a tax band which extends over the top panel means and which is secured thereto and to opposite side walls, said side walls being wider than the other two side walls. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     Embodiments of the invention will now be described in more detail making reference to the accompanying drawings in which: 
     FIG. 1 is a perspective view of a pack according to the present invention, 
     FIG. 2 is a perspective view of an alternative pack according to the present invention, 
     FIG. 3 is a perspective view of a foil wrapped bundle of smoking articles, 
     FIG. 4 shows a blank for encasing the FIG. 3 bundle to produce the pack shown in FIG. 1, 
     FIG. 5 shows a further blank for encasing the FIG. 3 bundle to produce a pack similar to FIG. 1, 
     FIG. 6 shows a blank for encasing the FIG. 3 bundle to produce the pack shown in FIG. 2, 
     FIG. 7 shows a still further blank for encasing the FIG. 3 bundle to produce a further different pack, and 
     FIG. 8 shows an example of a differently oriented blank for producing a pack similar to FIG.  1 . 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     FIG. 3 shows a bundle  10  comprising a number of smoking articles, such as twenty cigarettes, wrapped in a folded inner wrapping  11 . The wrapping  11  may be made of a thin, flexible material such as paper, metal foil or a metal coated paper. Such bundles are well known in the tobacco industry and only one example has been shown although other folding configurations are known for the wrapping  11 . 
     FIG. 4 shows a paperboard blank  12  for folding and securing about the bundle  10  to produce a pack  13  as shown in FIG.  1 . The blank  12  has a base  14  which is hingedly connected on opposite sides to first and second main side walls  15 ,  16 . The base  14  is generally rectangular with rounded corners. Hingedly connected at  21  to opposite lateral edges of the main side walls  15 ,  16  are side wall portions  17 ,  18 ,  19 ,  20 . Each hinge connection  21  in this embodiment comprises a number of lengthwise creases, the purpose of which will become apparent in due course. Hingedly connected to the edge of the first main side wall  15  remote from the base  14  is a top panel  22  which in turn is hingedly connected to a securing panel  23 . Tuck flaps  25  are also hingedly connected to the side wall portions  19 ,  20 . 
     In one method of assembling the pack  13 , the bundle  10  is placed on, and optionally adhesively secured to the first side wall  15 . The top panel  22  is then folded up so as to lie against the top of the bundle  10  and the base  14  is also folded up so as to lie against the bottom of the bundle  10 . The securing panel  23  is then folded over so as to lie against the bundle  10  and the second side wall  16  is folded down on to the bundle so as to be adhesively secured to the securing panel  23 . The side wall portions  17 - 20  are then folded around the bundle whilst the tuck panels  25  are tucked between the bundle  10  and the base  14  and adjacent side wall portions  17 ,  19  and  18 ,  20  are adhesively secured to each other. 
     The lengthwise creases of each hinge connection  21  enable the blank  12  to curve around the bundle  10  which has a smoking article at each corner. In this way the finished pack  13  does not have sharp lengthwise edges but radiussed bevel edges which are matched in the top panel  22  and base  14 . 
     It will be appreciated that other ways of folding and securing the blank are possible. Also, the hinge connections  21  could be in the form of small angled bevel panels defined between two lengthwise creases or could be single creases to produce sharper lengthwise edges. This applies to all described embodiments, with only minor modifications to the blank being necessary to produce the different pack effects. 
     At the same time as the side walls  15 ,  16  are being folded up, and the side wall portions are being secured, the top panel  22  and the securing panel  23  are being folded such that the securing panel  23  is adhesively secured to the inside of the second main side wall  16 . In this configuration the top panel  22  extends over the top of the bundle. A band  24  which may be, for example, a tax band, may also be attached over the top of the top panel  22  from the first side wall to the second side wall  16 . In other arrangements a band may extend from one pair of side portions  17 ,  19  across to the other pair of side portions  18 ,  20 , covering the whole top area of the pack  13 . Other types of tax band could also be used. 
     To gain access to the smoking articles, a portion of the top panel has to be removed to reveal the wrapping  11  of the bundle  10 . 
     It will be appreciated that the pack  13  has many of the attributes of a “soft” pack with the paperboard sides giving the pack more rigidity against certain crushing forces. In addition the provision of a paperboard base and a top panel give the pack further rigidity against differently oriented crushing forces. However, the single thickness base and top do not reinforce the pack to the extent that it remains as rigid as a standard “hard” pack and this is an important feature to those consumers who tend to prefer the look and feel of “soft” packs. The pack  13  may also appeal to those consumers who tend to buy “hard” packs because the pack  13  is not as rigid as “hard” packs but retains its shape sufficiently to reduce damage to the contents when compared to standard “soft” packs. 
     FIG. 5 shows a very similar blank  30  to the blank  12  shown in FIG.  4 . The only difference is that there are provided three perforated lines of weakening  31  to facilitate removal of a portion  32  of the top panel  22  to obtain access to the bundle  10 . 
     FIG. 6 shows another similar blank  40  to the blank  12  shown in FIG.  4  and like parts have been given similar reference numerals. The difference is that parts  41  of the top panel  22  and the securing panel  23  have already been removed such that the wrapping  11  of the bundle  10  is already visible. In practise the packs  13  of this and other embodiments will be overwrapped with a clear plastic film for added sealing and protection. 
     In FIG. 7 there is shown a further blank  50  which is similar in many respects to the FIG. 4 blank  12  except that the top panel  22  is hingedly connected to one of the side panel portions  17  and has two securing panels  23  for attachment to respective main side walls  15 ,  16 . 
     FIG. 8 shows an alternative blank configuration  60  having a double set of perforations  31  in the top panel  22 . Also the two main side walls  15 ,  16  are hingedly connected in series with three side wall portions  61 ,  62 ,  63  and each main side wall  15 ,  16  is hingedly connected to a base panel  64 ,  65 . In one illustrative way of assembling the blank  60 , the bundle  10  is placed on, and optionally adhered to, the first side wall  15 . The top panel  22 , base  64  and side wall portions  61 ,  62  are folded up against the bundle and then the securing panel  23  is folded down on to the side of the bundle  10 . The second side wall  16  is then folded over the bundle and is secured to the securing panel  23 . The other base panel  65  is then folded down and secured to the first base panel  64 . Finally the side wall portion  63  is folded around and secured to side wall portion  61 . During this assembly routine, the tuck panels  25  will be tucked above the base panels  64 ,  65 . 
     The double thickness base gives more rigidity at the base compared to the top. With filter cigarettes the filters tend to be at the top and so the extra base rigidity can reduce damage to the other, tobacco containing ends of the filter cigarettes. 
     Similar alternative blank configurations could of course be utilised in place of the other blanks described above. In other arrangements the securing panel or panels may not be glued but may be simply tucked inside the main side walls or may even be glued to the outside of the main side panels. Also, in the FIGS. 5 and 6 blanks the portion to be removed or the removed portion need not be rectangular as shown but could be any desired shape. Also there may be a further removable portion on the other lateral side of the top panel.