Technical Field

The invention relates to a box for instance for storing powder and comprising six side walls, at least three of said side walls being extended to form a cover, and to a cut and scored blank therefor.

Background Art

Hexagonal boxes are known, cf. for instance Danish pa¬ tent specification No. 127,280 and US patent specifica- tion No. 3,174,575. Theae known boxes are, however, provided with, a higher number of panels at the ends, said panels having to be individually folded, whereby the opening and closing of the boxes are complicated. Furthermore, the high number of separated panels implies that leaks between the panels easily occur, which per¬ mits penetration of the content such as for instance powder, of the box.

Disclosure of Invention

The object of the invention is. to provide a hexagonal box permitting a quick opening and closing, and where¬ by both the. top and the bottom cover comprises a high tightness and rigidity in such a manner that the box may be employed for storing powdered material.

The hexagonal box according to the invention is charac- terised in that the top and/or the bottom cover com¬ prises at least one panel, which at folding lines is connected with the end rims of three side walls and comprises a central main flap and two pairs of side flaps connected thereto through folding rims, said side

flaps comprising two or three triangles connected throu folding rims, whereby the main flap forms a central por tion, which in the closed position extends to at least four corners and usually is substantially perpendicular to the side walls of the box, each pair of side flaps comprising an oblique triangular rigid portion extendin from the main flap and abutting the side walls at a va¬ rying distance from the upper hexagonal rim of the box and furthermore forming an inner obtuse angle therewith whereas the smaller triangular flap(s) in the closed po sition abut the side walls in question and — in case of the bottom cover - preferably all are connected to thes side walls through folding lines, and whereby the main flap is connected to both adjacent side walls through folding lines.

In this manner the box may be closed quickly and simply by means of only one or optionally two panels. The con¬ nection between the panels, and the side walls as well a the particular shaping of the triangle flaps permit a tight cover and si ultanously provide the box with a certain rigidity, as the oblique triangle flaps pro¬ jecting inwards are slightly fixed between the main flap and the adjacent side walls. Furthermore, the ob¬ lique flaps keep the content away from the end rim of the adjacent side walls, whereby the tightness of the box is improved.

The said cover is particularly suited for forming a bottom, as the box may then be formed in a very simple manner by folding an oblong cut and scored blank com¬ prising a top cover, three side walls located side by side, a rectangular bottom cover, and three additional side walls also located side by side, and optionally an additional top cover. The bottom of the box is produced by situating the side walls perpendicular to the rectan

gular panel of the bottom, whereafter the side walls are assembled to form a hexagonal cylinder by bending the two largest triangle flaps of the bottom into an oblique - position in such a manner that the side walls merely abut each other. At the same time the four smallest tri¬ angle flaps thereby abut the adjacent side.walls. At the end of the thus situated side walls, the top cover is present, which may subsequently be folded and closed downwards into the hexagonal cylinder.

According to a particularly preferred embodiment of he box according to the invention the cover comprises only one panel with one main flap an3 six triangular side flaps, two of said side flaps being isosceles and ob¬ lique, whereas the four remaining side flaps closely abut the adjacent longitudinal sides. Like the cover, the bottom comprises a main flap and six triangular side flaps shaped in the ^' same manner as the corresponding por¬ tions of the cover, and whereby the bottom panel in. both ends is connected to the adjacent six side walls along the folded rim (bend) . In this manner it is obtained that the box is completely tight and very simple to assemble. Furthermore, the blank for producing the box may be produced in an almost rectangular shape, whereby waste of material is ^' avoided.

According to a particularly simple embodiment of the box according to the invention, the width of the side walls is equal.

According to the invention, the cover of the box may com¬ prise two successively folded panels. The panel finally folded may then be shaped in the same manner as the first panel provided only two of the triangle flaps on the pa¬ nel finally folded are disengaged from the two side walls. As a result, the two panels cover each other completely

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and co-operate in ensuring the bottom and the cover, re spectively, and in increasing the rigidity of the box. The panel finally folded is then slightly fixed between the side walls and the panel initially folded and there by ensures that the panel initially folded is unfoldabl since the panel initially folded primarily presses on the portion of the panel finally folded being adjacent its hinged folding rim (bend) on the side wall. The above disengaged triangle flaps may be bent upwards in such a manner that the inner sides thereof oppose the inner sides of the adjacent side walls. Such a cover implies that the triangle flaps: closely abut the side walls in such a manner that the bottom and the cover, respectively, are closely sealed towards all six side walls, and furthermore in such a manner that a prede¬ termined friction is provided between the triangle flaps and the side walls, thereby providing an improved fixing of the cover.

Moreover according to the invention, the panel finally folded may comprise a main flap and two isosceles tri¬ angle flaps connected to the main flap through, folding lines, and furthermore two equilateral triangle flaps, connected along folding lines with the two isosceles triangle flaps and along folding lines connected to the two adjacent side walls. In this manner all the side walls are hinged to the two panels, whereby an improved tightness is obtained. After the folding of the final panel, all the flaps of this panel are located in almost the same horizontal plane and ensure a good rigidity of the box when this panel is fixed by means of an adhesive wafer or label.

According to a fourth- embodiment of the invention, each panel may be an extension of two adjacent side walls and comprise such scored lines that these by folding divide

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the panel into two or more triangular locking,, in fact trapezoidal, portions tightly abutting the two side walls, of which they optionally form an extension, and a large central portion comprising two trapezoidal ri- gid portions connected through a folding line and which at closing are folded in a roof-like manner so as to abut all the side walls in their entire width, and which form an inner obtuse angle with the side walls at a dis ^¬ tance from the upper rim of the side walls, as well as optionally two additional triangular side flaps, which. in the closed position like the two first-mentioned tri¬ angular side flaps closely abut the adjacent side walls and whereby - in case of a bottom cover — said bottom cover comprises only one panel comprising two larger trapezoidal portions and four smaller triangular (in fact trapezoidal) side flaps, which in the unfolded po¬ sition is shaped like a rectangle, as well as rectangu¬ lar side flaps, and whereby the triangular side flaps are connected preferably through folding lines to the four adjacent side walls, while the two rectangular side flaps are secured to the adjacent side walls, e.g. by means of an adhesive. In this manner a closing is ob¬ tained which is particularly rigid in the direction in¬ dicated by the folding rim between the two hinged tra- pezoidal portions. The tightness in the box is good., the content being kept away from the end rims of the side surfaces by the oblique, top-forming portions, especially away from the end rims not comprising hinged extensions to form panels.

Furthermore according to the invention, the panel final¬ ly folded inwards may be provided with flaps on at least two of the free rims, whereby these flaps are. bent up¬ wards at the folding inv/ards of the panel in such a man¬ ner that the inner sides of the flaps oppose the inner side of their respective side walls. If desired, the

flaps turning upwards may be rugged on -the. inner side or comprise an adhesive coating. As a result a friction of such a size between the flaps and the side walls may be provided that the cover is. locked in the closed position

The main flap on the cover panel of the box may be ex¬ tended by a tear-off strip, whi.σh. along a folding line is bent downwards and secured to the adjacent side wall, e.g. by means of an adhesive.

In this manner a safe securing of the cover panel in .the closed position is obtained, until a user opens the box by tearing off the strip.

In the outer triangular side flaps of the cover and. in the adjacent side walls, the box may in both sides com¬ prise cut hinged locking flaps to secure the cover upon an opening of the box.

Brief Description of Drawings.

The invention will be described below with, reference to the accompanying drawing, in which

Fig. 1 illustrates a cut blan for a box according to -th invention,

Fig. 2 is a top view of the. ox in the closed position,

Fig. 3 is a front view of the box of Fig. 2,

Fig. 4 is. a bottom view of the box of Fig. 2,

Fig. 5 is an oblique top view of the box of Fig. 2,

Fig. 6 is an oblique top view of the box of Fig. 2,

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but whereby the cover is. open,

Fig. 7 is an oblique front top view of another, embodi¬ ment of a box according to the invention and comprising two panels , whereby only the first panel is folded down- wards,

Fig. ^" 8 corresponds to Fig. 7, but whereby the final panel is almost folded downwards.

Fig. 9 is an oblique top view of the embodiment of Fig-. 7, whereby the box is closed,

Fig. 10 is an oblique top view of a third embodiment of the box, whereby both panels are partly unfolded,

Fig. 11 is an oblique front top view of the embodiment of Fig. 10, whereby the first panel is folded downwards,

Fig. 12 is an oblique top view of the embodiment of Fig. 10, but in a closed position,

Fig. 13 is an oblique top view of a fourth embodiment of the box, whereby the first panel is folded inwards,

Fig. 14 is an oblique top view of the embodiment of Fig. 13, whereby the second panel is almost folded downwards,

Fig. 15 is an oblique top view of the embodiment of Fig. 13, whereby the clos.ed position appears,

Fig. 16 illustrates, a cut and scored blank according to the second embodiment of the invention,

Fig. 17 illustrates a cut and scored blank according to the third embodiment of the invention, and

Fig. 18 illustrates a cut and scored blank, according to the fourth embodiment of .the invention.

Best Mode for Carrying Out the Invention

Figs. 1 to 6 illustrate a particularly advantageous, em- bodiment. The cut blank, of Fig...1 is shaped as an oblon rectangle apart from some narrow assembling flaps* 63, 6. projecting a short distance beyond the rectangle. The blank scored as shown is divided into a top cover 10a, three side walls 17, 18, 19, a bottom cover .10b, and three additional side walls 17, 18, 19. These additiona side walls may be assembled in a very simple manner by bending said side walls upwards so as to be perpendicu¬ lar to the bottom portion 10b. The triangle flaps 12, 14, 14 on each side of the bottom cover 10b are then bent inwards and upwards into the box in such a manner that the four smallest triangle flaps 14, 14 abut their respective adjacent side wall 17, 19, whereby the side walls are assembled to form a hexagonal cylinder, and are secured by means of the assembling flaps 65. Suhse- quently, the top cover lOa_ may be bent downwards into the hexagonal cylinder in such a manner that the main flap 11 connects two opposing side walls 18 and further more in such a manner that the two isosceles triangle flaps 12 incline to their respective side from the main flap 11 and obliquely downwards towards the side walls 17, 19. The smallest triangle flaps 14, 15 thereby abut these side walls, cf. Fig. 2 being a top view of the box. The free rims of the triangle flaps 15, the side walls 17, 19, and the assembling flaps 65 are in Fig. 2 indicated by double lines, whereas the folded rims (the bends1 are indicated by a single line.

Fig. 3 is a front view of the box comprising a tear-off

strip 63. This tear-off strip 63 is along a scored line 60 connected to the main flap 10 and bent downwards over and secured to the adjacent side wall, e.g. by means of an adhesive. Fig. 3 furthermore illustrates the assembling of the side walls, by means of the assembling flaps 65, e.g. by means of an adhesive. The box comprises locking flaps 64, 66 applicable for securing the cover panel 10 in the closed position after the box has been opened and the tear-off strip 63 removed. The locking flaps 64,- 66 are cut both in the triangle flaps 15 of the top cover and in the side walls 17, 19. These locking flaps oppose each other when the box is closed and may be pressed in¬ wards in such a manner that the. locking flap 66 is pressed through the aperture appearing in the triangle flap 15 at pressing inwards of the locking flap 64. (by means of the flap 66} .

Fig. 4 is a bottom view of the box, whereby all .the rims, illustrated are folded rims apart from the lower rims of the assembling flaps, said assembling flaps therefore be- ing indicated by double lines. As it appears from this Fig. 4 all the side walls are connected through folding rims 60 to the bottom cover, -thereby ensuring a great tightness.

Fig. 5 is an oblique top view of the box showing the ob- lique, isosceles triangular flap 12 projecting into the hexagonal cylinder and furthermore tightening and stiffen¬ ing the box.

^• Piηg. 6 is an oblique top view of an opened box.

The box illustrated in Figs. 7 to 9 and 16 comprises three pairs of opposing uniform side v/alls 17^, 173D, 18a_, 18b, and 19a, 19b_ with extensions for forming a cover. These extensions are formed into two panels. The panel 10

to be initially folded inwards comprises a main flap 11 being an extension of the side wall 18a_, and triangular side flaps 12, 13, 14, and 15 being extensions of the side walls 17a. and 19a_. The scored lines 52 and 53, cf. Fig. 16, connect the main flap 11 to the side flaps 12, 13, and the scored lines 51 and 54 connect the side flap to two additional side flaps 14,* 15 connected to-the side walls 17a and 19a_.

When the panel 10 is folded downwards, the entire panel is bent inwards along the folding line 60. The triangle flaps 12 and 13 are pressed slightly inwards towards each other, and the scored lines 51 and 54 are bent down wards into the box together with the associated triangle 12, 13, 14, and 15. When the panel is correctly situated the main flap 11 forms, a horizontal, plane connection be tween the side walls 18a and 18b. The side flap triangle 14 and 15 tightly abut the associated side walls 17a_ and 19a.. The side flap triangles 12 and 13 form oblique -sur¬ faces for tightening and stiffening the box, ^" just like the first embodiment.

Fig. 7 also illustrates the panel to be folded inwards finally. This panel is shaped in the same manner as the panel initially folded inwards, but the side flaps are cut free of the side walls 17b_ and 19b. The final panel is folded inwards by pressing the triangle flaps 22 and 23 a short distance towards each other in such a manner that they may slide downwards over the triangle flaps 12 and 13. When the panel is completely folded, the side flaps 24 and 25 tightly abut the side walls 19b and 17b in such a manner that friction arises between the side walls and the side flaps if it is tried to open the pa¬ nel. These surfaces may be rugged or be particularly treated with adhesive or a friction-increasing material to ensure the cover. The oblique surfaces 12, 13 imply

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in the closed box that the content is kept away from the end rims of the side walls 17b, 19b cut along the line 60.

Fig. 9 illustrates the clos.ed box. The side walls 17a_, 17b, 19a., 19b have in this embodiment been reinforced by the side flap triangles 14, 25, 15, 24, and the cover or the end surface is double and comprises the flaps 22, 21, 23 and 12, 11, 13, of which, the last three do not appear from Fig. 9.

Figs. 10 to 12 illustrate a third embodiment according to the invention. The shape of the cut and scored blank appears from Fig. 17. When comparing Fig. 16 and Fig. 17, it appears that the panel 10 initially folded inwards is identical in .these two embodiments.. The panel 30 fi- nally folded inwards comprises a main flap 31 and four triangular side flaps 32, 33, 34, and 35, the main flap and two of said side flaps being situated in extension of the side walls 17b, l ^' 8b, and l ^" 9b. At the closing, the panel is folded along the scored line 60 inwards, over the panel 10 initially folded inwards by means of the scored lines 65, 68, 56, and 57. Thereby, the side flaps are situated in almost the same plane. Subsequently, the main flap 31 is secured, e.g. by means of adhesive, to the main flap 11 or the side wall 18a_. The resulting cover is rigid in all directions across the side walls.

Figs. 13 to 15, and 18 illustrate a fourth embodiment according to the invention. By this embodiment, the first panel 40 extends from two side v/alls 17a_ and 18a_ and comprises folding lines 43, 44, and 45 dividing the panel into tv/o smaller triangle-like, in fact trapezoidal side flaps 46, 47, and a large central portion comprising two trapezoidal rigid portions. 48, 49 connected through a folding line 45 and which at closing are folded in a

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roof-like manner so as to abut all the side v/alls in their entire .width, and which form an inner Obtuse angl with the side walls 19 at a distance from the upper rim of the side walls while the smaller side flaps 46, 47 after the closing tightly abut the side v/alls 17a_ and 18a. When the panel is completely folded downwards, the folding line 45 extends from the corner 41 to the corne 42 a short distance below the rim of the box.

The final panel 50 is folded downwards by folding about the folding line 60 in a similar manner as the first panel 40. The panel 50, is, ^' however, also provided with side flaps 61 and 62, which at the folding inwards of the panel are bent upwards and tightly abut the side walls 19a_ and l'9b_. The inner sides of these flaps oppos the inner sides of the side walls. These inner sides ma be rugged or treated with an adhesive in such a manner that friction arises between the side flaps and the sid walls, whereby the panel finally folded inv/ards is fixe in its closed position folded inwards.

The box according to the invention may also comprise a carrying strap.