GB2035959A

GB2035959A - Window carton

Info

Publication number: GB2035959A
Application number: GB7934177A
Authority: GB
Original assignee: Bowater Packaging Ltd
Current assignee: SCA Packaging Britain Ltd
Priority date: 1978-10-02
Filing date: 1979-10-02
Publication date: 1980-06-25
Also published as: GB2035959B

Abstract

A window carton preferably including an integral or inserted internal fitment 61 for supporting the contents includes a window in the front and top walls 3, 11 and also in the rear wall 7 and a display panel or header card 15 upstanding from the rear wall 7. Preferably, the window in the front wall 3 merges with that in the top wall 11 and the window in the rear wall extends to the full height of the rear wall 7, and the header card 15 incorporates three layers of material between which edge portions of translucent sheet material overlying the windows are interleaved. Preferably, tuck flaps 49 connected to the rear wall 7 of the carton overlie locator flaps on the fitment 61. <IMAGE>

Description

SPECIFICATION Window carton This invention relates to window cartons made of fibrous sheet material and having some form of internal fitment to assist in the presentation of the goods within the carton. This fitment may be formed integral with the carton itself or may be a separate insert. Window cartons of the type to which the present invention refers are disclosed in British Patent Specification Nos. 1,242,721, 1,242,711 and 1,242,723. The cartons are particularly designed for the packaging of toy motor vehicles and the like.

According to the present invention we provide a window carton formed of fibrous sheet material and comprising a front wall, a rear wall, a base and a top wall and a pair of opposite end walls, there being a display panel upstanding from the top wall as an extension of the rear wall and a window in each of the front, top and rear walls.

Preferably, the window in the rear wall extends right to the top of the rear wall. Preferably also, the window in the top wall extends right to the rear of the top wall in which case the display panel is preferably of three layer thickness. This is because a film of translucent material preferably overlies each window, and edge regions of the material overlying the rear window and top window extend into the display panel. The translucent material is difficult to adhere to itself, except with a hot melt adhesive, and hence it is preferably interleaved with the three layers of the display panel. Preferably, in this construction, the internal fitment is formed as a separate insert which can be of any desired colour or material.

Preferably, a tuck flap is foldably connected to each end of the rear wall, each flap being foldable into back to back relationship with an end portion of the rear wall to maintain an end wall of the fitment in position so as to provide a false or internal end wall within the carton.

In an alternative construction, in which the internal fitment is formed integral with the remainder of the carton, the window in the top wall does not extend completely to the rear of the top wall and the display panel is of only two layer thickness. Furthermore, the internal fitment is foldably connected to a lower edge of either the rear wall or front wall of the carton and again, false end wall panels of the internal fitment, which are foldably connected to the ends of a false base panel of the fitment, are maintained in their erect position by means of tuck flaps foldably connected to respective ends of the rear wall of the carton.

When these tuck flaps are folded in, they allow tuck-in flaps associated with the outer end closure flaps to be tucked in easily, because they overlie the steps which are formed by the edge of the translucent sheet and by the locator flap of the internal fitment. These steps would otherwise tend to hinder the passage of the tuck-in flaps into the ends of the carton.

Also according to the present invention, we provide a one piece blank for erection into a carton as described above, the blank being formed of fibrous sheet material which is cut and scored so as to define a first panel foldably connected along one edge to a second panel which is foldably connected along its opposite edge to one edge of a third panel, there being a window in the second and third panels extending across the fold line joining the second and third panels together, the opposite edge of said third panel being foldably connected to one edge of a fourth panel, the opposite edge of which is foldably connected to a fifth panel having a window therein and having a sixth panel foldably connected to its edge remote from the fourth panel. Preferably, all the abovementioned fold lines are parallel and each of the six panels is of generally rectangular configuration.

Preferably, end closure flaps are foldably connected at least to the second and third panels of the blank about fold lines normal to the previously mentioned fold lines, and a further flap for locating a false end wall of an internal fitment for the carton into which the blank is to be erected is foldably connected to each end of the fifth panel about fold line parallel to the fold lines joining the end closure flaps to the second and third panels.

In a preferred construction of blank for a carton having a separate internal fitment, the first panel comprises a display panel, the second panel comprises a top panel, the third panel comprises a front panel, the fourth panel comprises a base panel, the fifth panel comprises a rear panel having a display panel integral therewith and the sixth panel also comprises a display panel. In this construction, external end closure flaps are foldably connected to the side edges of the third or front panel and internal closure flaps are foldably connected to each end of each of the second and fourth panels, i.e. the top and base panels.

In an alternative embodiment of blank which is for a carton having an integral internal fitment, the first panel comprises an inner base panel, the second panel comprises a front panel, the third panel comprises a top panel, the fourth panel comprises a display panel, the fifth panel forms both a display panel and a rear panel and the sixth panel comprises a glue flap or base panel. In this construction, internal end closure flaps are foldably connected to each end of the first panel when it provides a base panel and also to each end of the third or top panel and external end closure flaps are foldably connected to each end of the second or front panel.

Furthermore, in this construction of blank, when the first pane! comprises a base panel, the various panels forming the internal fitment are foldably connected to the edge of the base panel remote from the second panel. However, if the first panel comprises a glue flap, then the panels forming the internal fitment may be foldably connected to the edge of the sixth panel, which is then a base panel, remote from the fifth panel.In either construction, the panels comprising the internal fitment include a spacer panel foldably connected to the edge of the base panel remote from the edge connecting it to the second or fifth panel, a false base panel foldably connected to an opposite edge of the spacer panel and a glue flap foldably connected to the edge of the false base panel remote from the spacer panel, there being two false end wall panels foldabiy connected to each end of the false base panel about fold lines normal to the fold line connecting the false base panel to its spacer panel, each of these false end panels being rectangular and having spacer flaps foldably secured to each of its other three edges.

Preferably, each of the windows in the blanks are closed by translucent sheets adhered to portions of the blank surrounding the windows.

Two embodiments of window carton in accordance with the present invention are now described with reference to the accompanying drawings, in which: FIGURE 1 is a plan view of a blank for a first preferred embodiment of carton; FIGURE 2 is a plan view of a blank for a fitment for a carton to be erected from the blank of Figure 1; FIGURE 3 is a perspective view of the carton erected from the blank and fitment of Figures 1 and 2, showing one end of the carton closed and the other end open, and FIGURES 4 and 5 are views corresponding respectively to Figures 1 and 3, but of a second embodiment of the invention.

Referring to the drawings, full lines represent the boundaries of panels or cuts in panels whereas broken lines represent fold or score lines formed between or in respective panels or flaps of the blank or carton illustrated therein.

Referring to Figure 1 ,the blank includes a rectangular base panel 1 having a front panel 3 foldably connected to one of its long edges about a-fold line 5 and having a rear panel 7 foldably connected to its opposite edge about a fold line 9 parallel to fold line 5. A top panel 11 is fold ably connected to the edge of the front panel remote from the base panel 1 about a fold line 13 parallel to the fold line 5 and a display panel 1 5 is foldably connected to the edge of the top panel 11 remote from the front panel 3 about a fold line 17 parallel to the fold line 13. A window 19 is formed in the front and top panels 3 and 11, the window extending right across the top panel, across the fold line 13 and about two-thirds of the way across the front panel 3.The window is closed by a translucent sheet of material 22, such as cellulose acetate, or a stronger material known as Melamex. The translucent material is adhered to the material of the blank bounding the window and it will be seen that the translucent material extends over a part of the display panel 1 5.

The rear panel 7 has a further window 21 formed therein, the edge 23 of the window 21 defining part of the top edge of the rear panel 7, this top edge merging with a rear display panel 25. Again, the window 21 is covered by a translucent sheet 24, which need not be as thick as the sheet 22, and which again is adhered to the material of the blank around the window 21, and extends into the display panel 25. Foldably connected to the top edge of the panel 25 about a fold line 27 parallel to the fold line 9 is a further display panel 31 which in the erected carton, is sandwiched between the display panels 1 5 and 25, or more specifically, between the translucent sheets 22 and 24 attached to the panels 1 5 and 25.This has the advantage of providing a stronger bond of the layers of the display panel 15,25,31, since some translucent materials such as Melamex are non-porous, and do not easily adhere to each other (except with a hot melt adhesive). It will be appreciated that in some instances, however, the panel 31 could be omitted.

Two inner end closure flaps 33 are foldably connected, one to each end of the top panel 11 about fold lines 35 extending at right angles to the fold lines 17 and 13 and a similar pair of inner end closure flaps 37 are likewise folded to the respective end edges of the base panel 1 about fold lines 39 normal to the fold lines 5 and 9. An external end closure flap 41 isfoldably connected one to each end of the front wall panel 19 about a fold line 43 extending at right angles to the fold lines 13 and 5 and between the fold lines 1 5 and 39 and a tuck in flap 45 is foldably connected to each free edge of the external end closure flap 41 about a fold line 47 parallel to the fold line 43.

To each end edge of the rear panel 7, a tuck flap 49 is foldably connected, about a fold line 51 extending normal to the fold line 9. Each tuck flap 49 has an inclined free edge 53 designed to locate a false end wall forming part of an internal fitment for the carton which fitment is erected from the blank illustrated in Figure 2, and to assist with the formation of the end closures of the carton, as will be described later.

As can be seen from Figure 1, the six panels forming the main body of the carton are arranged in a sequence such that the first panel is the panel 15, the second panel is the top panel 11, the third panel is the front panel 19, the fourth panel is the base panel 1, the fifth panel is the rear panel 7 together with its integral display panel 25 and the sixth panel is the display panel 31.

Referring now to Figure 2, the fitment shown therein comprises a rectangular base panel 61 and a pair of false end wall panels 63 which are foldably connected to respective ends of the false base panel 61 about parallel fold lines 65 and 67 respectively. Each of the false end walls panels 63 has a locator flap 69 foldably connected to it, one about a fold line 71 located at its rear edge and the other about a fold line 73 located at its front edge. Likewise, spacer flaps 75 are foldably connected to the two long edges of the false base panel 61, one about a fold line 77 at the rear edge of the panel 61, and the other about a fold line 79 at the front edge. The fold lines 71 and 77 are in line with each other and are parallel to the fold lines 73 and 79 which are also in line with each other, all these fold lines extending at right angles to the fold lines 65 and 67.

To erect a carton as shown in Figure 3 from the blanks shown in Figures 1 and 2, the display panel 31 is first folded through 1 800 about its fold line 27 and adhesively secured into back to back relationship with the display panel 25 so as completely to overlie the peripheral portion of the film material overlying the window 21. This then provides on the rear face of the display panel 25 a further panel which is formed totally of fibrous sheet material. The base panel 1 is then folded so as to extend to 900 to the rear panel 7 whereupon the front panel 3 is folded upwardly so as to extend normal to the base panel and parallel to the rear panel.The top panel 11 is then folded downwardly through 900 so as to extend parallel to the base panel and the display panel 1 5 is then reverse folded through 900 so as to overlie the panel 31 to which it is then adhesively secured. A portion of the rear surface of the display panel 15 will be covered by a peripheral portion of the film material overlying the window 1 9 but this can be adhesively secured to the panel 31 without any difficulty. If the panel 31 is not provided, then it would be necessary to adhere peripheral portions of the film material for the windows 21 and 19 to each other and this has so far proved difficult if not impossible with known adhesives. One end of the carton can then be formed or alternatively the fitment shown in Figure 2 is inserted into the partially formed carton before formation of the one end.First of all, the fitment has its two false end walls 63 folded upwardly through about 70" and the locator flap 69 and spacer flaps 75 are folded downwardly so as to extend at right angles to the panels 63 and 62 respectively.

The fitment can then be inserted into the body of the carton with the free bottom edges of the spacer flaps 75 resting on the internal surface of the base panel 1 and the locator flaps 69 abutting against the internal faces of portions 20 and 8 of the front panel 3 and rear panel 7 respectively.

When the fitment or insert is correctly located within the body of the carton, free edges 70 of the flap 69 which are inclined at about 200 to the fold line 73, will be substantially in line with the fold lines 43 and 51 on the carton proper. If desired, the false end walls 63 may be folded upwardly relative to the false base panel 61 after location of the fitment within the carton. At some stage the toy to be packed within the carton must be inserted. This can be either at the same time as the insert or subsequent to folding up of one of the false end walls 63.

To maintain the false end walls in their correct positions, the tuck flaps 49 are then folded inwardly of the carton through 1800 so as to overlie one of the locator flaps 69 at each end of the fitment. To complete erection of the carton, the end walls are formed in known manner by firstly folding in the inner end closure flaps 33 and 37, and then folding over the outer end closure flap to overlie inner end closure flaps 33 and 37 and tucking the tuck-in flap down into the carton so that it lies against a portion of the folded in tuck flap 49. Because the tuck flaps 49 overlie the flaps 69, the tuck-in flaps 45 can easily be pushed into place without any risk of their free edge coming up against the free edge flaps 69, or edge portions of the translucent panel 24.

It will thus be appreciated that a carton is provided which appears to have a continuous window extending from the top edge of the false base panel 61 of the insert or fitment for the full height of the front panel 20 and then across the full width of the top panel 11 and then continues down from the top of the rear panel 8 to the top of the base panel 61. This gives an extremely effective visual display of the contents of the carton.

Because of the presence of a header card which is provided by the three (or two) superimposed display panels 15, 25 and 31, which extends across the junction between the windows in the top and rear panels of the carton, considerable rigidity is imparted to the carton in this vicinity.

Without such a header card which of course is largely for display purposes, the carton would be very flimsy.

Because the carton has a fitment which is formed separately from the remainder of the carton and is inserted therein, the fitment can be formed from a different material from the remainder of the carton. We have found that a very suitable material is a sheet of fibrous material which can be laminated with a shiny, gold coloured sheet. Alternatively, however, the fitment could be replaced by a special shaped vacuumformed fitment into which the toy can first be inserted.

Referring now to the second embodiment of the invention illustrated in Figures 4 and 5, the blank of Figure 4 includes a rectangular first or base panel 101 having a second or front panel 103 foldably connected thereto along a fold line 105. A third or top panel 111 is foldably connected to the top edge of the front panel 103 about a fold line 113 and a fourth or display panel 11 5 is foldably connected to the rear edge of the top panel 111 about a fold line 117. To the top edge of the display panel 11 5, a fifth panel is foldably connected about a fold line 109. The fifth panel includes a display panel 125 and integral therewith a rear panel 107. A further sixth panel or flap 131, which acts as a base panel or glue flap is foldably connected to the bottom edge of the rear panel 107 about a fold line 127.A window 121 is provided in the rear panel 107 and extends from the top thereof, which is defined by the bottom edge of the display panel 125 about two-third of the way down the panel. Likewise, a further window 11 9 is provided in the front panel 103 and top panel 111, the window 119 extending from about one-third of the way up from the bottom of the front panel 103 to the top across the fold line 113 and about two-thirds of the way towards the rear of the top panel 111. As in the previous construction, each of the windows is closed off by a translucent panel 1 24, 1 22, respectively.

A spacer panel 1 75 is foldably connected to a central portion of the rear edge of the base panel 101 about a fold line 176 and a false base panel 1 61 is foldably connected to the edge of the base panel 1 75 remote from the base panel 101 about a fold line 162. A further spacer or glue flap 275 is foldably connected to the edge of the false base panel 161 remote from the spacer panel 1 75 about a fold line 276. All the fold lines 1 27, 109, 1 17, 1 13, 105. 176, 162 and 276 are parallel.

To each end of the false base panel 161, a false end panel 163 is foldably connected about a fold line 1 67. These fold lines extend at right angles to the previously mentioned fold lines. Two locator flaps 1 69 are foldably connected, one to the front and one to the rear edge of each of the false end wall panels 163, about fold lines 171 and 173 respectively. Furthermore, further locator flaps 170 are foldably connected to the fourth edge of each panel 1 63 about fold lines 1 72 respectively.

A locator or tuck flap 1 49 is foldably connected to each end of the rear panel 107 about a fold line 151 which extends normal to the fold line 127 and a first pair of inner end closure flaps 133 are foldably connected to the ends of the base panel 101 about fold lines 1 35 extending at right angles to the fold line 105, whereas a second pair of internal enclosure flaps 1 37 are foldably connected one to each end of the top panel 111 about fold line 139 extending at right angles to the fold line 117. An outer end closure flap 141 is foidably connected to each end of the front panel 103 about fold lines 143 extending at right angles to the fold line 113 and to the outer edge of each outer end closure flap 141 a tuck-in or locking flap 145 is foldably connected about a fold line 147.

The fold lines 147 are parallel to the fold lines 143 and the fold lines 151,139,143 and 135 at each end of the carton are in line and parallel to those at the opposite end of the carton. The fold lines 167 extend parallel to the fold lines 135 but are spaced inwardly therefrom.

A film of transparent or translucent material 1 24, 1 22 respectively is located over each of the windows 121 and 11 9 as in the previous embodiment, peripheral portions of this film being adhesiveiy secured to portions of the panels 107 and 125 defining the window 121 and the panels 111 and 103 defining the window 11 9, respectively.

To form the blank shown in Figure 4 into the carton of Figure 5, the glue flap 275 is folded downwardly so as to extend at right angles to the false base panel 161 and the false base panel 161 is folded so as to extend at right angles to the spacer panel 1 75. Likewise, the spacer panel 1 75 is folded at right angles to the base panel 101 and the front panel 103 is folded so as to extend upwardly at right angles to the base panel 101.

Adhesive is then applied to the glue flap 275 so that this can be secured to the rear face of the portion 102 of the front panel 103 and to the periphery of the film material overlying this rear face. Adhesive is then applied to the front of the spacer card 1 75 and to the lower surface of the base panel 101 and also to the rear of the face of the base panel 131 and the rear face of the display panel 11 5. The display panel 125 is then folded 1800 rearwardly about the fold line 109 and is adhesively secured to the spacer panel 1 1 5 with a peripheral portion of the film overlying the window 121 secured to the rear of the display panel 125 also being adhesively secured to the rear face of the display panel 11 5. The display panel 11 5 is then folded so as to upstand at right angles to the top panel 113 and the top panel is folded downwardly through 900 so as to extend at right angles to the front panel 103. The lower portion of the rear panel 107 which is largely overlain by a peripheral portion of the film overlying the window 1 21 can then be adhesively secured to the spacer panel 175 whereupon the base panel 131 is folded rearwardly so as to extend at right angles to the rear panel 107 and is adhesively secured to the base panel 101.

This completes erection of the main body of the carton.

To complete the final erection of the carton, it is necessary to insert the articles to be packaged so that it is located in the centre of the windows and the two false end wall panels 1 63 are then folded upwardly through about 700, this folding action automatically folding the locator panels 1 69 and 1 70 downwardly so that they extend at right angles to the panels 163. To maintain the panels 163 in position, the tuck or locator flaps 1 49 are then folded inwardly through about 1800 so as to sandwich the rear locator panel 1 69 between a portion of the rear panel 107 and the locator panel 149.Finally, the inner end closure flaps 137 are folded inwardly to overlie the end of the carton whereupon the outer end closure flap 141 at each end is folded inwardly through 900 and the lock in or tuck in flaps 145 are then also folded inwardly in known manner to hold the end closure closed.

Because the tuck flaps 149 overlie the locator flaps 169, there is no problem with the free edge of the tuck in flaps 145 coming up against the free edge of the locator flaps 1 69 or an edge portion of the translucent sheet 124.

The resultant carton looks similar to that the subject of the first embodiment, the only real differences being that the internal fitment is integral with the remainder of the carton.

Therefore, except by a special printing process, it cannot be made to look different. Furthermore, the window in the top wall does not extend completely to the rear of the top wall and the header card, instead of being of three layer thickness is formed only from the display panels 125 and 11 5 and is therefore of only two layer thickness. Nevertheless, it still imparts rigidity to the carton at the boundary between the rear and top walls.

Claims

1. A window carton formed of fibrous sheet material and comprising a front wall, a rear wall, a base and a top wall and a pair of opposite end walls, there being a display panel upstanding from the top wall as an extension of the rear wall and a window in each of the front, top and rear walls.

2. A window carton according to claim 1 wherein the window in the rear wall extends right to the top of the rear wall, and an upper edge region of a translucent panel overlying said window extends into said display panel.

3. A window carton according to claim 2 wherein the window in the top wall extends right to the rear of the top wall and a rear edge region of a translucent panel overlying said window is turned up so as to extend into said display panel.

4. A window carton according to claim 3 wherein the display panel is of three layer thickness, with the layers of translucent material being interleaved with said three thicknesses.

5. A window carton according to claim 1, 2, 3 or 4 and including an internal fitment.

6. A window carton according to claim 5 wherein the internal fitment is formed as a separate insert.

7. A window carton according to claim 6 wherein at least major parts of the internal fitment whose surfaces will be visible in the assembled carton have those surfaces provided with a shiny metallic finish.

8. A window carton according to claim 6 or 7 wherein the internal fitment includes four locator flaps which are carried in pairs by two opposite end portions of the fitment, the four flaps having edges which are arranged to co-operate with two tuck flaps and with two fold lines about which end closure flaps of the carton are turnable so as to support said end portions in appointed positions in which they are inclined upwardly away from a central rectangular false base panel of the fitment.

9. A window carton according to claim 1,2 or 3 in which the internal fitment is formed integral with the remainder of the carton, the window in the top wall does not extend completely to the rear of the top wall and the display panel is of only two layer thickness.

10. A window carton according to claim 9 wherein the internal fitment is foldably connected to a lower edge of either the rear wall or front wall of the carton.

11. A window carton according to claim 9 or 10 wherein false end wall panels of the internal fitment, which are foldably connected to the ends of a false base panel of the fitment, are maintained in their erect position by means of flaps foldably connected to respective ends of the rear wall of the carton.

12. A window carton according to claim 8 or 11 wherein each end thereof is provided with a tuck flap that is folded inwardly substantially towards the centre of the carton through about 1800, said tuck flap abutting against a tuck-in flap of a corresponding end closure flap of the carton, when the latter is closed, in such a way that said tuck flap prevents the tuck-in flap from fouling a side edge region of one of said translucent panels, or an edge of the locator flap on the fitment.

13. A window carton substantially as hereinbefore described with reference to Figures 1-3 or 4 and 5 of the accompanying drawings.

14. A one-piece blank for erection into a carton as claimed in any one of the preceding claims 1-3 or 9-12 when dependent on claims 1-3 wherein the blank is formed of fibrous sheet material which is cut and scored so as to define a first panel foldably connected along one edge to a second panel which is foldably connected along its opposite edge to one edge of a third panel, there being a window in the second and third panels extending across the fold line joining the second and third panels together, the opposite edge of said third panel being foldably connected to one edge of a fourth panel, the opposite edge of which is foldably connected to a fifth panel having a window therein and having a sixth panel foldably connected to its edge remote from the fourth panel.

1 5. A blank according tQ claim 14 wherein all the fold lines are parallel and each of the six panels is of generally rectangular configuration.

1 6. A blank according to claim 14 or 1 5 wherein end closure flaps are foldably connected at least to the second and third panels of the blank about fold lines normal to the previously mentioned fold lines.

1 7. A blank according to claim 1 6 wherein a further flap for locating a false end wall of an internal fitment for the carton into which the blank is to be erected is foldably connected to each end of the fifth panel about a fold line parallel to the fold lines joining the end closure flaps to the second and third panels.

18. A blank according to claim 1 7 wherein said further flaps each have a straight free edge inclined at about 200 to the fold line connecting the flap to the fifth panel.

19. A blank according to any one of claims 1 4-1 7 wherein, for a carton having a separate internal fitment, the first panel comprises a display panel, the second panel comprises a top panel, the third panel comprises a front panel, the fourth panel comprises a base panel, the fifth panel comprises a rear panel having a display panel integral therewith and the sixth panel also comprises a display panel.

20. A blank according to claim 19 wherein external end closure flaps are foldably connected to the side edges of the third or front panel and internal closure flaps are foldably connected to each end of each of the second and fourth panels, i.e. the top and base panels.

21. In combination with a blank as claimed in claim 1 9 or 20, a second blank for the internal fitment substantially as hereinbefore described with reference to Figure 2 of the accompanying drawings.

22. The combination of claim 21 wherein the second blank has a shiny coloured surface.

23. A blank according to any one of claims 14--17 which is for a carton having an integral internal fitment, wherein the first panel comprises an inner base panel, the second panel comprises a front panel, the third panel comprises a top panel, the fourth panel comprises a display panel, the fifth panel forms both a display panel and a rear panel and the sixth panel comprises a glue flap or base panel.

24. A blank according to claim 23 wherein internal end closure flaps are foldably connected to each end of the first panel when it provides a base panel and also to each end of the third or top panel, and wherein external end closure flaps are foldably connected to each end of the second or front panel.

25. A blank according to claim 23 or 24 wherein, when the first panel comprises a base panel, the various panels forming the internal fitment are foldably connected to the edge of the base panel remote from the second panel.

26. A blank according to claim 23 or 24 wherein the first panel comprises a glue flap and the panels forming the internal fitment are foldably connected to the edge of the sixth panel, which is then a base panel, remote from the fifth panel.

27. A blank according to claim 25 or 27 wherein the panels comprising the internal fitment include a spacer panel foldably connected to the edge of the base panel remote from the edge connecting it to the second or fifth panel, a false base panel foldably connected to an opposite edge of the spacer panel and a glue flap foldably connected to the edge of the false base panel remote from the spacer panel, there being two false end wall panels foldably connected, one to each end of the false base panel about fold lines normal to the fold line connecting the false base panel to its spacer panel, each of these false end panels being rectangular and having locator or spacer flaps foldably secured to each of its other three edges.

28. A blank according to any of claims 11 20 or 23-27 wherein a sheet of translucent material overlies each of said windows, the sheets being adhesively secured to portions of the panels bounding said windows.

29. A blank according to claim 28 wherein one edge of the translucent sheet overlying the window in the second and third panels overlies the first panel to which it is adhesively secured.

30. A blank for a window carton, said blank being substantially as hereinbefore described with reference to Figure 1 or Figure 4 of the accompanying drawings.