Cardboard pack for display stand

Abstract: The invention relates to the packaging field. The blank (10) can be used to produce cardboard packs (2) having a display card (6) provided with a hooking aperture (23) and a case (4) provided with a body whose general shape is a rectangular parallelogram provided with two openings (8a,8b) closed by flaps. According to the invention, the display card is provided with a fixing flap (22) extending beyond the periphery of the card and intended to be fixed with at least one of the flaps intended to close the opening in order to increase the linking between the case and the hooking tab when the case formed on the hooking tab is closed. Application to the production of cardboard packs intended to be hooked onto display stands.

Description: The present invention relates to the packaging field and in particular to cardboard packs intended to be hooked to display stands. More specifically, the pack can be in cardboard or in another easily biodegradable or recyclable material, and have a display card having a hooking aperture, and in which the fixing of the case to the display card is improved; the manufacturing operations, the introduction of objects to be packaged in the case and the closing of the case being able to be done by simple mechanisms (see for instance DE-U-92 01 283.3). The documents DE-A-43 22 555 and US-A-4 106 615 describe cases produced from a single cardboard blank. The cases have tabs intended for hooking them to display stands. When the objects to be distributed are relatively small, such as for example photographic rollfilms, the packs are small and can easily fit in a pocket. To prevent the disappearance of articles inside a store, it has been proposed, as described in the document US-A-3 480 138, to stick small cases onto cardboard cards of a larger size. Then, it has been proposed to use a single blank for the case and for the display card. The Patent DE-A-42 22 448 proposes a pack wherein the display card is larger than the case and has an opening equal to that of the formed case. In addition, the part making the case is linked to the part making the card by a spacer, thus enabling the case to be put inside the opening provided in the display card. This embodiment is difficult to produce automatically as the case is introduced in an opening after the formation of the case and its filling. Thus in French Patent 2 743 542 a pack has been proposed that can be produced from a single cardboard blank wherein the case is stuck on the display card, which does not have such disadvantages. Nevertheless, it has been noted that the use of this type of cardboard pack on display cards has a disadvantage. Pulling relatively gently on the case causes the case and the card to become unstuck and gives relatively easy access to the product contained in the case. For ecology needs, it is advantageous to be able to produce such a pack from cardboard wherein the fixing of the case to the display card is improved. It is clear that the operations of case forming, case filling and case closing must be easy to do using conventional machines. The pack for the display stand according to the invention is obtained by means of a single blank as claimed having a first part intended to form the case, a second part intended to form a display card whose area is greater than the straight forward projection of the case on this card, and possibly a third part intended to distance the case from the edges of the hooking tab. The case, once formed, comprises a body defining at least one opening and closing flaps intended to close this opening. The display card comprises at least two fixing flap extending beyond the periphery of the display card and intended to be fixed to at least one of the closing flaps with one glue line so as to increase the link between the case and the display card when the case formed on the hooking tab is closed. Other advantages of the invention will appear on reading the description below with reference to the annexed drawings. Figures 1,2,3 represent examples useful for understanding the invention. Figure 4 represents a first embodiment according to the invention wherein the case is arranged inside the hooking tab. Figure 5 represents a second embodiment according to the invention similar to that shown in Figure 4. Figure 6 represents an example useful for understanding the invention similar to that shown in Figure 1 wherein the part of the blank used to form the case is hinged directly to the part of the blank used to form the display card. Figure 7 represents a perspective view of the pack obtained from a blank according to the invention. Figure 8 represents the cross-section of the pack according to the invention represented in Figure 7 at the level of the opening 8b. Identical references have been used on all the figures to indicate parts having identical functions. As can be seen in Figure 7, the invention proposes the provision of a pack 2 comprising a case 4 fitted with a display card 6 and whose openings 8a, 8b are closed by flaps. As can be seen in Figures 1 to 5, the case is formed from a single blank 10 preferably cardboard. Clearly any other material can be used, however easy-to-recycle materials will be preferred. The blank comprises a series of elements, panels and flaps all hinged one to another. The blank 10 comprises a first part 11 intended to form the case 4, a second part 12 intended to form the display card 6, and possibly a third part 13 enabling the position of the case to be distanced from the edges of the display card 6. There now follows a description of the first part 11 of the blank 10 enabling the case 4 to be produced. The case 4 comprises a body 4 defined by four practically rectangular elements 30, 31, 32, 33. The first element 30, used for the rear, is intended to fix the case onto the second part 12 which forms the display card. The second element 31, hinged to one 41 of the edges (Fig. 2) of the first element, defines one side of the case 4. The third element 32, hinged to the second element by the edge 42 (Fig. 2) opposite that used for hinging between the first element and the second element, defines the front of the case. The fourth element 33, hinged to the third element by the edge 43 (Fig. 2) opposite that used for hinging between the third element and the second element, defines the other side of the case. When the case is formed, the edge 40 (Fig. 2), of the edges of the first element 30 opposite the edge used for hinging between the first and second element, is brought very near to the edge 44 of the fourth element 33 opposite the edge 43 used for hinging between the third and the fourth elements, in such a way as to form a tube of practically rectangular cross-section defining two openings 8a and 8b. The opposing edges 45 and 46 (Fig. 2) of the second element 31 defining part of the openings 8a and 8b, are each provided with a closing flap 34 and 35 respectively. The opposing edges 47 and 48 (Fig. 2) of the third element 32 defining part of the openings 8a and 8b, are each provided with a closing flap 36 and 37 respectively. The opposing edges 49 and 50 (Fig. 2) of the fourth element 33 defining part of the openings 8a and 8b, are each provided with a closing flap 38 and 39 respectively. The closing flaps 35 to 39 enable the openings 8a and 8b to be closed (Fig. 7). There now follows a description of the second part 12 intended to form the display card 6. In a first example, shown in Figure 1, the second part comprises a first panel 20 having a first zone, intended to receive the rear 30 of the case 4. This first zone has a height at least equal to the height H1 of the case 4 and a width at least equal to the width L1 of the case. The first panel 20 also has a second zone, adjacent to the first zone, of height H2 and width L2 usually equal to the width of the first zone. This second zone is provided with a hooking aperture 23 whose shape is usually that of an isosceles triangle and whose point is directed towards the adjacent side which is arranged opposite the first zone. This aperture is used for hooking the pack onto the display stand. The second part 12 is provided, according to the invention, with a fixing flap 22 hinged to the first panel 20. This flap 22 is arranged in such a way as to be fixed to at least one of the closing flaps of the case 4 when the case, once filled, is closed. In this way, when the case is closed, the fixing of the four flaps 34, 36, 38 and 22 increases the fixing of the case 4 on the display card 6. In this first example, the first part 11 of the blank 10 making the case 4 is linked to the second part 12 making the display card 6 by a distancing spacer 28 enabling the case 4 to be distanced from the edge of the display card 6. It will be noticed that the position of the hinged fixing flap 22 on the display card 6 is a function of the dimension separating the first part 11 of the blank 10 making the case 4 from the second part 12 making the display card 6. This first example wherein the display card only comprises a single panel has a disadvantage because for the whole pack the visible sides of the case are obtained with the back of the blank 10 while the visible face of the display card is obtained with the front of the blank 10. If a uniform presentation is desired then both faces of the blank must be printed. To prevent such an operation a pack can be produced with an improved blank 10 like for example that represented in Figure 2. This second example only differs from the previous one by the different production of the display card. In addition to the first panel 20, the display card 6 is provided with a second panel 21, practically identical to the first panel and hinged to the latter by the edge opposite to that on which the third part 13 is hinged. As can be seen in Figure 2, the second panel 21 has a hooking aperture 23b corresponding in position, in shape and size to the hooking aperture 23a of the first panel 20. When pack 2 is being formed, panel 21 is folded and fixed to panel 20. In this way, both faces of the display card 6 have the same appearance which will then be identical to the appearance of the case once the case had been formed. In addition the interaction of the apertures 23a and 23b defines the hooking aperture 23. As can be seen the second panel 21 is provided with a cutout 29 in order to prevent over thickening of the card at the spacer 28 position when the pack 2 is formed. It is clear that it would also be possible to choose to hinge the second panel 21 onto the edge of the first panel adjacent to the hooking aperture 23. The third example, represented in Figure 3 demonstrates that the orientation of the case 4 can easily be controlled by the location of the first part 11 of the blank 10 making the case 4 in relation to the second part 12 of the blank 10 making the display card 6. In a first embodiment according to the invention, represented in Figure 4, the first part 11 of the blank 10 is similar to that used in the embodiments described above. The second part 12 of the blank 10 is obtained as in the second example essentially from two practically identical panels 20, 21 each having a hooking aperture 23a and 23b respectively. The two panels are hinged by one edge and can be folded one against the other so as to form the display card 6 and give it the same appearance as that of the case 4. As can be seen in Figure 4, the first part 11 making the case 4 is linked to the second part 12 making the display card 6 by a third part 13 used as spacer 28. In the embodiment represented, the length of the spacer is greater than the corresponding dimension of the case 4 and is equal to the dimension of the display card 6. The panel 21, on which the element 31 of the case, making the rear of this case, will be fixed, is provided with two fixing flaps 22a and 22b extending beyond the periphery of the display card 6 and intended to be fixed to at least one closing flap of the opening of the case 4. In a similar way and with the aim of obtaining an improved appearance of the display card 6, the panel 20, to which the panel 21 having flaps 22 is fixed, is provided with two flaps 24a and 24b intended to be folded and fixed to the panel 21 with the aim of providing the same appearance to the part uncovered by the flaps 22a and 22b when the latter are fixed to the closing flaps 34 to 39 intended for closing the case. It will be seen that in this embodiment the fixing flaps 22a and 22b used to improve the fixing of the case to the display card are part of the panel used for the front of the display card, and not, as in the examples represented in Figures 1 to 3, part of the panel used for the rear. As can be seen in a second embodiment according to the invention, represented in Figure 5, the display card 6 can be obtained by the interaction of one main rear panel 20 having a hooking aperture 23a and several other panels. One main front panel 21 with fixing flaps 22a an 22b and a hooking aperture 23b interact with the hooking aperture 23a. Two presentation flaps 24a and 24b interact with the spacer 28 to improve the presentation of the front of the display card 6. The example represented in Figure 6 is similar to that of Figure 2. However, this embodiment demonstrates that when the case 4 is arranged in one corner of the display card, the third part 13 of the blank 10 is not necessary. In order to produce the pack delivered flat, for example that of the example represented in Figure 2, the panel 21 is glued and folded according to the score line between the panels 20 and 21. Then, the blank is folded according to the score line 42 between the element 32 and the element 31, then the first zone of the second panel 21 is glued and the blank is folded according to the score line between the first panel 20 and either the third part 13 or the side element 33 when there is no third part. To package an object, the packaging machine in the usual way folds the preformed pack that is supplied to it flat, closes one 8b of the two openings (that of the two openings having four flaps) by putting the fixing flap 22 between the side flaps 34, 38 and the closing flap 36 hinged on the front. Then, the four flaps are fixed to one another, the product to be marketed is introduced in the case thus formed, and the other opening 8a having three flaps 35, 37, 39 is closed in the examples : represented in Figures 1, 2, 3 and 6, or the four flaps in the embodiments represented in Figures 4 and 5. As can be seen in Figure 8, the fixing flap 22 is fixed to the flap 36 hinged on the front of the case by one glue line 52. In one advantageous embodiment, the case flaps can have an appropriate cutout that can have a shape near to that represented in Figure 4 or 5. In this way the interaction between the flaps 34 and 38 and between the flaps 35 and 39 allows the side flaps to appear side by side, which can be glued to the flap 36 corresponding to the front using a single glue line 54 applied to the flap 36. Clearly to be able to perform this operation the fixing flap 22 will have, for example, the shape represented in Figure 3 and should only cover a small part of the opening as can be seen in Figure 8. Several embodiments have been described for a pack with a hooking tab. Clearly the case can be centered in relation to the rear panel 20 of the display card 6, as has been described with reference to Figures 1 to 6. However, the width of the spacer 28 enables the case to be located in the place required on the first zone of panel 20.

Claims: A blank (10) for a display card (6) with case (4), having a first part (11) intended to form a case having a body defining at least one opening (8a, 8b) and provided with closing flaps (34-39) intended to close this opening, and a second part (12) intended to form a display card having a first panel (20) and a second panel (21) adjacent and hinged to the first panel (20), the second panel (21) having a hooking aperture (23b) arranged so as to interact with a corresponding aperture (23a) of the first panel (20), the area of the second part (12) being greater than the straight forward projection of the case on this card, the blank (10) being characterized in that the second part comprises at least two fixing flaps (22a, 22b) extending beyond the periphery of the second panel (21), and intended to be fixed to at least one of the closing flaps (34-39) with one glue line (52), in such a way as to increase the link between the case and the display card when the case formed on the display card is closed. The blank (10) according to claim 1, wherein the first part (11) and the second part (12) are hinged to two opposite edges of a third part (13) in such a way as to distance the case (4) from the edges of the display card (6). The blank (10) according to any of claims 1 or 2, wherein the fixing flaps (22a, 22b) only partially covers the opening, and wherein a glue line is applied between a closing side flap (34, 38) and the front closing flap (36) when the blank is in the closed position. A case in cardboard with hooking tab obtained from a blank according to any one of claims 1 to 4.

Inventors: COLLINET MICHEL JEAN, COLLINET, MICHEL JEAN
Applicants: EASTMAN KODAK CO, EASTMAN KODAK COMPANY
Application year: 2000
Main classification: B65D5
IPC codes: B65D5