Cardboard cutting for the formation of a crate, and associated forming process

Abstract

This cardboard cutout (1) for forming a box comprises, joined in pairs by a fold, a first panel (11), a second panel (12), a third panel (13), a fourth panel (14), and a fifth panel (15), each comprising a first section (17), a second section (18), and a third section (19) joined in pairs by a fold. The first section (17) comprises a first fixing zone (21), the third section (19) comprises a second fixing zone (22), the first panel (11) comprises a third fixing zone (23) intended to be fixed to the first fixing zone (21), and the third panel (13) comprises a fourth fixing zone (24) intended to be fixed to the second fixing zone (22). Figure for the abbreviation: Fig. 1

Description

Title of the invention: Cardboard cutting for the formation of a box, and associated forming process. Technical field

[0001] The present invention relates to the field of cardboard boxes for the packaging of a large number of finished products, for example for the transport or storage of said finished products. Previous techniques

[0002] Cardboard boxes for transporting or storing finished products sometimes have unsuitable dimensions, or dimensions that do not exactly match the dimensions of the finished products, or their packaging, to be placed inside. Therefore, cardboard inserts can be placed inside a box, such as two cardboard inserts forming a divider. Adding these cardboard inserts creates a segmentation of the volume of a cardboard box and allows for better optimization of the storage space for the finished products inside.

[0003] However, current solutions require an operator to position the cardboard sheets inside a box. The cost of such cardboard sheets must also be added to that of the cardboard boxes themselves. Description of the invention

[0004] The present invention therefore aims to provide an inexpensive cardboard box, offering effective compartmentalization and good resistance to vertical compression.

[0005] The present invention relates to a flat cardboard cutout for the formation of a box, comprising an outer face and an inner face extending in width along a first direction and in height along a second direction orthogonal to the first direction, and further comprising aligned along the first direction and connected in pairs by a fold, a first panel, a second panel, a third panel and a fourth panel.

[0006] The cardboard cutout further comprises a fifth panel connected and aligned with the fourth panel along the first direction by a fold, the fifth panel comprising a first section, a second section, and a third section connected in pairs along the first direction by a fold, the first section being the proximal section of the fourth panel and comprising a first attachment zone on the outer face, the third section being the distal section of said fourth panel and comprising a second attachment zone on the inner face, the first panel comprising a third attachment zone on the inner face intended to be attached to the first fixing area by means of a fixing means, preferably glue, the third panel comprising a fourth fixing area on the inner face intended to be fixed to the second fixing area by means of a fixing means, preferably glue.

[0007] Thus, the fifth panel, and in particular the second section, forms an interlayer that allows for compartmentalizing the interior of a cardboard box at a lower cost, since it is directly connected to the rest of the box. This fifth panel reinforces the structure of the box once in place and is also easy to deploy automatically when the box is unfolded.

[0008] Advantageously, the width of the second panel is equal to the width of the fourth panel and to the width of the second section of the fifth panel.

[0009] Advantageously, the width of the fifth panel is less than or equal to the sum of the widths of the third and fourth panels.

[0010] In one embodiment, the height of the second section of the fifth panel is equal to the height of the first, second, third and fourth panels.

[0011] In a particular embodiment, the third fixing zone is positioned at the distal end of the first panel relative to the second panel.

[0012] Advantageously, the cardboard cutout further includes first side flaps extending from the first, second, third and fourth panels in a first direction along the second direction.

[0013] In one embodiment, the cardboard cutout further includes second side flaps extending from the first, second, third and fourth panels in a second direction along the second direction.

[0014] Advantageously, each panel, section and flap is rectangular or chamfered rectangular in the plane formed by the first and second directions.

[0015] In a particularly advantageous embodiment, the cardboard cutting includes at least one extension extending from the first section and / or from the third section.

[0016] Advantageously, the cardboard cutting is carried out with corrugated cardboard whose flute profile is directed along the second direction.

[0017] Advantageously, the cardboard cutting is carried out in a single piece.

[0018] The present invention also relates to a parallelepiped-shaped cardboard box made from a cardboard cutout as defined above, the box comprising a fastening means, preferably glue fixing the second fastening zone with the fourth fastening zone and the first fastening zone with the third fastening zone.

[0019] The present invention also relates to a method for forming a box from a cardboard sheet, characterized in that it comprises the following steps:

[0020] - Cutting the cardboard sheet so as to form the cardboard cutout such as defined previously;

[0021] - Folding the cardboard cutout along the crease between the fourth panel and the fifth panel;

[0022] - Fixing, preferably with glue, the second fixing zone with the fourth fixation zone;

[0023] - Folding the cardboard cutout along the fold between the second panel and the third panel; and

[0024] - Fixing, preferably with glue, the first fixing area with the third fixing zone in order to obtain a flattened crate that can be stored.

[0025] Advantageously, the method further includes a step of unfolding the flattened box in a movement of separating the fold between the first and second panel relative to the fold between the third and fourth panel so as to obtain a parallelepiped box. Brief description of the drawings

[0026] Other objects, features and advantages of the invention will become apparent from the following description, given solely by way of non-limiting example, and made with reference to the accompanying drawings in which:

[0027] [Fig.1] is a schematic pattern of a flat cardboard cutout for forming a cardboard box according to the invention;

[0028] [Fig.2] is a schematic view of a box according to a first embodiment of the invention;

[0029] [Fig.3] is a schematic view of a box according to a second embodiment of the invention without second side flaps;

[0030] [Fig.4] is a schematic view of a crate according to a third embodiment of the invention with sliding extensions; and

[0031] [Fig.5] is a schematic representation of the steps of a process for forming a box according to the invention.

[0032] Detailed description of at least one embodiment

[0033] Fig. 1 is a schematic pattern of a flat cardboard cutout 1 for the formation of a cardboard box 3.

[0034] Cardboard cutting 1 means a shape given to a cardboard sheet which includes folds and which, once assembled, forms a box 3.

[0035] Embodiments of the box 3 formed from such a cut of cardboard 1 or a variant of the cut of cardboard 1 are schematically illustrated in figures 2, 3 and 4.

[0036] The cardboard used for such a box 3 is, for example, flat cardboard or corrugated cardboard.

[0037] In the case of corrugated cardboard, the flutes are, for example, "double-sided" flutes, such as type B or E flutes, i.e., with a thickness of 3 mm or 2 mm respectively. The basis weight of each sheet of paper used for the cardboard is between 90 and 220 g / m².

[0038] Other flutes such as "double double-sided" flutes, for example BE or EB type flutes, i.e. of equal thickness of 5 mm, or BC type flutes, i.e. of equal thickness of 6 mm, can also be used in the corrugated board of the cardboard die-cut 1.

[0039] Advantageously, the cardboard die-cutting 1 is carried out in a single piece. This makes it simple to produce and reduces production costs.

[0040] The cardboard cutout 1 comprises an external face 5 and an opposite internal face 7 extending in width along a first direction X and in height along a second direction Y orthogonal to the first direction X. The thickness of the cardboard cutout 1 can, for example, be a few millimeters.

[0041] The external face 5 is intended to form the external face 5 of the case 3 while the internal face 7 is intended to form the internal face 7 of the case 3.

[0042] The dimensions of the cardboard cutout 1 referred to in this patent application are those defining the internal volume 9 of the final box 3, namely dimensions measured from the side of the internal face 7. In practice, the dimensions of each panel can be adapted to take into account the thickness of the cardboard.

[0043] The cardboard cutout 1 comprises, aligned along the first direction X and connected in pairs by a fold of material, a first panel 11, a second panel 12, a third panel 13 and a fourth panel 14. The panels 11 to 14 are successive along the first direction X. The folds of material are schematically represented on [Fig.1] by dotted lines.

[0044] Each fold, or material fold, corresponds to the location of a material fold in the box 3 once assembled. To facilitate folding, the cardboard cutout 1 includes grooves and / or perforations at the material folds.

[0045] These four panels 11 to 14 form side panels of the crate 3 once assembled.

[0046] The four panels 11 to 14, for example, have similar dimensions in pairs. For example, the first panel 11 has the same dimensions as the third panel 13 and the second panel 12 has the same dimensions as the fourth panel 14, in order to form a parallelepiped-shaped box 3.

[0047] According to one embodiment, the height H along the second direction Y is the same for each panel 11 to 14.

[0048] The width A of the first panel 11 is for example greater than the width B of the second panel 12.

[0049] In the case of a cardboard cut 1 made of corrugated cardboard, the flute profile PC is directed along the second direction Y and allows to reinforce the structure of the box 3 defined by the side panels 11 to 14. The direction of the flute profile PC is represented on the [Fig.1] in a triangular sign.

[0050] The cardboard die-cut 1 further comprises a fifth panel 15 connected and aligned with the fourth panel 14 along the first direction X by a fold of material, the fifth panel 15 comprising a first section 17, a second section 18 and a third section 19 connected in pairs along the first direction X by a fold. The fifth panel 15 preferably does not include any slit, cutout or notch or more generally any area of ​​weakening in order to maintain its strength.

[0051] The first section 17 is the proximal section, that is, the closest, to the fourth panel 14 and includes a first fastening zone 21 on its outer face 5 intended to receive a fastening means such as an adhesive product, preferably glue, or an adhesive film, or any other fastening means. The first section 17 extends from the fourth panel 14. The second section 18 extends from the first section 17 on the side opposite the fourth panel 14, considering the first direction X. The first fastening zone 21 is preferably positioned along the fold connecting the fourth panel 14 to the fifth panel 15.

[0052] The third section 19 is the distal, or furthest, section of said fourth panel 14 and includes a second fastening zone 22 on its inner face 7 intended to receive a fastening means such as an adhesive, preferably glue, or an adhesive film, or any other fastening means. The third section 19 extends from the second section 18 on the side opposite the first section 17, considering the first direction X. The second fastening zone 22 is preferably positioned along the fold connecting the second section 18 to the third section 19.

[0053] The first panel 11 includes a third fixing zone 23 on its inner face 7 intended to receive an adhesive product and intended to be fixed to the first fixing zone 21. This interaction allows, among other things, the case 3 to be closed and to to connect the ends of the first panel 11 and the fourth panel 14. Indeed, the third fixing zone 23 and the first fixing zone 21 are positioned so that, once fixed together, the distal end of the first panel 11 coincides with the fold between the fourth panel 14 and the fifth panel 15. For this, the third fixing zone 23 is positioned at the distal end of the first panel 11 with respect to the second panel 12.

[0054] The third panel 13 includes a fourth fixing zone 24 on its inner face 7 intended to receive a fixing means such as an adhesive product, preferably glue, or an adhesive film, or any other fixing means, and intended to be fixed to the second fixing zone 22. This arrangement allows the second section 18 of the fifth panel 15 to pass through the internal volume of the box 3 and thus to form an interlayer capable of compartmentalizing the internal volume 9 of the box 3 into two sub-compartments as illustrated in Figures 2 to 4. The third fixing zone 23 is positioned at a distance from the fold between the second panel 12 and the third panel 13 equal to the width of the first section 17 along the first direction X when the second section 18 is intended to be parallel to the second and fourth panels 12 and 14.

[0055] Depending on the width of the first section 17, the second section 18 divides the volume of the crate 3 into different sections. It is particularly advantageous not to divide the volume of the crate 3 into two equal sub-compartments in order to obtain two sub-compartments of different sizes for use in different ways. In this case, the width of the first section 17 is different from half the width of the first panel 11. The second section 18 is said to be off-center.

[0056] Advantageously, the width B of the second panel 12 is equal to the width B of the fourth panel 14 and to the width B of the second section 18 of the fifth panel 15. The second section 18 is then parallel to the second panel 12 and to the fourth panel 14 when the crate 3 is mounted.

[0057] Alternatively, the second section 18 may be wider than the second panel 12 and the fourth panel 14. The second section 18 will then be positioned obliquely in the internal volume 9 of the box 3.

[0058] Advantageously, the width of the fifth panel 15 is less than or equal to the sum A+B of the widths of the third panel 13 and the fourth panel 14.

[0059] Thus, the crate 3 can be stored already fixed, preferably glued, but flattened to save considerable space, with the fifth panel 15 sandwiched between the other panels 11 to 14. Unfolding the flattened crate 3 is then done in a single movement and allows both the formation of the crate's exterior appearance and the automatic deployment of the second section 18 across the internal volume 9. This step It can also be automated with a PLC, its deployment not requiring a manual operator.

[0060] In one embodiment, the height H of the second section 18 of the fifth panel 15 is equal to the height H of the first, second, third and fourth panels 11 to 14.

[0061] This feature makes it possible to strengthen the structure of the crate 3, and in particular the resistance to vertical compression, the crate 3 being intended to be placed on a surface, the second direction Y aligning with the vertical.

[0062] A 17% increase in vertical compression resistance was observed between a height H of the second section 18 of the fifth panel 15 equal to the height H of the first, second, third, and fourth panels 14, and a height of the second section 18 of the fifth panel 15 10 millimeters lower than the height H of the first, second, third, and fourth panels 14. The paper weight of the cardboard can therefore be reduced for similar performance, in order to save weight and manufacturing costs. For corrugated cardboard, a paper weight of less than 135 g / m² for each sheet is possible for a tensile strength of 1100 N and dimensions AxB of 135 x 103 mm and 113 mm in height H, as well as type B flutes with a thickness of 3 mm.

[0063] Advantageously, the cardboard cutout 1 further includes first side flaps 25 extending from the first, second, third and fourth panels 11 to 14 in a first direction along the second direction Y. These first side flaps 25 form, for example, the base on which the finished products will be placed in the crate 3.

[0064] In one embodiment, the cardboard cutout 1 further includes second side flaps 27 extending from the first, second, third and fourth panels 11 to 14 in a second direction along the second direction Y. This embodiment of the closed box 3 is illustrated in [Fig.2].

[0065] Alternatively, the second side flaps 27 can be removed as illustrated in [Fig.3], in open crate 3 configuration.

[0066] Advantageously, each panel 11 to 14, section 17 to 19 and flap 25, 27 is rectangular or chamfered rectangular in the plane formed by the first and second directions X and Y. For example, as shown in [Fig. 1], the first and second side flaps 25 and 27 of the second and fourth panels 14 have chamfers 29 to facilitate the closing of the case 3. The third section 19 also has chamfers 29 so as not to hinder the folding of the first and second side flaps 25 and 27.

[0067] In a particularly advantageous embodiment shown in [Fig. 4], the cardboard cutout 1 comprises at least one extension 31 extending from the first section 17 and / or from the third section 19. As shown, an extension 31 extends from the first section 17 onto the second side flap 27 extending from the first panel 11; it can be attached to it. An extension 31 also extends from the third section 19 onto the second side flap 27 extending from the third panel 13; it can be attached to it. These extensions 31 facilitate the insertion of finished products into the crate 3 by sliding them along these extensions 31 without the first or third section 19 acting as stops that would prevent the crate 3 from being loaded by sliding.

[0068] The steps of the process of forming a box 3 from a cardboard plate are shown schematically in [Fig.5].

[0069] Initially, a step El is carried out of cutting the cardboard plate so as to form the cardboard cutout 1 as described previously.

[0070] Then we carry out a step E2 of folding the cardboard cutout 1 along the fold between the fourth panel 14 and the fifth panel 15.

[0071] The second fixing zone 22 is fixed with the fourth fixing zone 24 during the following step E3.

[0072] Then, another folding step E4 is carried out on the cardboard cutout 1 along the fold between the second panel 12 and the third panel 13. This folding step E4 can also be carried out at the same time as the first folding step E2.

[0073] Finally, a step E5 is carried out to fix the first fixing zone 21 with the third fixing zone 23.

[0074] For either of the fixing steps E3 or E5, a line of glue is applied, for example, to one of the fixing areas concerned, for example a line with a length between 5 cm and 30 cm and a width between 1 mm and 10 mm. The glue used is a standard cardboard glue, for example white vinyl glue.

[0075] These steps E1 to E5 result in a flattened, storable crate 3. These steps E1 to E5 are, for example, carried out by a supplier of cardboard crate 3.

[0076] Advantageously, the method further includes a step E6 of unfolding the flattened box 3 in a movement of separating the fold between the first and second panels 11 and 12 from the fold between the third and fourth panels 13 and 14 so as to obtain a parallelepiped box 3.

[0077] Advantageously, the fifth panel 15 deploys automatically during this step E6, which can be carried out, for example automatically, by a user of the till 3.

Claims

Demands

1. A flat cardboard die-cut (1) for forming a box (3), comprising an outer face (5) and an inner face (7) extending widthwise along a first direction (X) and heightwise along a second direction (Y) orthogonal to the first direction (X), and further comprising, aligned along the first direction (X) and connected in pairs by a fold, a first panel (11), a second panel (12), a third panel (13), and a fourth panel (14), characterized in that it further comprises a fifth panel (15) connected and aligned with the fourth panel (14) along the first direction (X) by a fold, the fifth panel (15) comprising a first section (17), a second section (18), and a third section (19) connected in pairs along the first direction (X) by a fold, the first section (17) being the proximal section of the fourth panel (14) and comprising a first attachment zone (21) on the outer face (5),the third section (19) being the distal section of said fourth panel (14) and comprising a second fixing zone (22) on the inner face (7), the first panel (11) comprising a third fixing zone (23) on the inner face (7) intended to be fixed to the first fixing zone (21) by means of a fixing means, preferably glue, the third panel (13) comprising a fourth fixing zone (24) on the inner face (7) intended to be fixed to the second fixing zone (22) by means of a fixing means, preferably glue.

2. Cardboard cutout (1) according to claim 1, wherein the width (B) of the second panel (12) is equal to the width of the fourth panel (14) and to the width of the second section (18) of the fifth panel (15).

3. Cardboard cutout (1) according to any one of claims 1 and 2, wherein the width of the fifth panel (15) is less than or equal to the sum of the widths of the third panel (13) and the fourth panel (14).

4. Cardboard cutout (1) according to any one of claims 1 to 3, wherein the height (H) of the second section (18) of the fifth panel (15) is equal to the height (H) of the first, second, third and fourth panels (11; 12; 13; 14).

5. Cardboard cutout (1) according to any one of claims 1 to 4, wherein the third fixing zone (23) is positioned at the distal end of the first panel (11) relative to the second panel (12).

6. Cardboard die-cut (1) according to any one of claims 1 to 5, further comprising first side flaps (25) extending from the first, second, third and fourth panels (11; 12; 13; 14) in a first direction along the second direction (Y).

7. Cardboard cutout (1) according to claim 6, further comprising second side flaps (27) extending from the first, second, third and fourth panels (11; 12; 13; 14) in a second direction along the second direction (Y).

8. Cardboard cutout (1) according to any one of claims 6 and 7, wherein each panel (11; 12; 13; 14), section (17; 18; 19) and flap (25; 27) is rectangular or chamfered rectangular in the plane formed by the first and second directions (X; Y).

9. Cardboard cutting (1) according to any one of claims 1 to 8, comprising at least one extension (31) extending from the first section (17) and / or from the third section (19).

10. Cardboard cutting (1) according to any one of claims 1 to 9, made with corrugated cardboard having the flute profile (PC) directed along the second direction (Y).

11. Cardboard cutting (1) according to any one of claims 1 to 10, carried out in a single piece.

12. A parallelepiped-shaped cardboard box (3) made from a cardboard cutout (1) according to any one of claims 1 to 11, comprising a fastening means, preferably glue, fixing the second fastening zone (22) with the fourth fastening zone (24) and the first fastening zone (21) with the third fastening zone (23).

13. Method of forming a box (3) from a cardboard sheet characterized in that it comprises the following steps: - Cutting (step 11) the cardboard sheet so as to form the cardboard cutout (1) according to any one of claims 1 to 11; - Folding (step E2) the cardboard cutout (1) along the fold between the fourth panel (14) and the fifth panel (15); - Fixing (step E3), preferably with glue, the second fixing area (22) with the fourth fixing area (24); - Folding (step E4) the cardboard cutout (1) along the fold between the second panel (12) and the third panel (13); and - Fixing (step E5), preferably with glue, the first fixing area (21) with the third fixing area (23) in order to obtain a flattened crate (3) for storage.

14. A method according to claim 13, further comprising a step (E6) of unfolding the flattened box (3) in a movement of separating the fold between the first and second panel (11; 12) from the fold between the third and fourth panel (13; 14) so ​​as to obtain a parallelepiped box (3).

Images