FR2690418A1 - Box for packaging particularly heavy products, and blanks for its production. - Google Patents

Abstract

The invention relates to a box for packaging particularly heavy products, and blanks for its production. - The box (1, 1 '), of the type comprising a bottom (2), a side belt (3) and a cover (4), and of which at least two of the side and opposite walls of said belt are provided with notches (5) intended for gripping the box, is remarkable in that said cover (4) is provided with at least two lateral and affixed tabs (6, 6 '), which are folded back and fixed respectively against said walls (3A , 3C) with indentations of said belt, and the free edges of which are at least substantially flush with said indentations (5), the length of said tongues (6) being greater than that of said indentations (5).

Description

The present invention relates to a box intended more

  particularly, although not exclusively, to contain heavy products, such as for example bottles or the like.

  Boxes of this type are generally obtained from a blank made of a cardboard material (corrugated or not) and / or synthetic, and forming after folding, the bottom, the side belt and the lid of the box To facilitate the handling of the boxes containing the ponderous products previously packaged therein, two of the side and opposite walls of their belt are provided with respective indentations located in the upper part, near the lid of said boxes These notches then serve as a passage for the hands of the user, who can then seize the upper part of said side walls to transport the boxes. The indentations can be cut directly into the side walls concerned, but they are more usually obtained by means of

  precut tabs in said walls and folded around the fold line, upwards and against the inner faces of said side walls.

  Although these indentations allow easy handling of the boxes, the fact remains that, under the weight of the heavy products, risks of tearing the walls, at the level of the upper edges delimiting the indentations, may occur, making it difficult, or even impossible,

  the handling of the boxes by the notches Tel is moreover often the case when the weighty products are defined by bottles.

this

  The present invention aims to overcome this inconvenience.

  deny, and relates to a packaging box of the type described above, for safe transport.

  For this purpose, the box for the packaging of products, particularly heavy, made of a cardboard material, synthetic or the like and of the type comprising a bottom, a

  and at least two of the lateral and opposite sides of said belt are provided with notches for gripping the box, it is remarkable, according to the invention, in that said cover cle is provided with at least two side tongues and op-

  and which have their free edges at least substantially flush with said indentations, the length of said tongues being greater than that of said indentations, which are folded and fixed respectively against said notched walls of the belt.

  Thus, thanks to the invention, the two lateral tongues of the

  cover are reinforcements for the notched side walls, guaranteeing a reliable transport of the boxes.

  In fact, in the case where the indentations are directly cut, the gripping of the box, containing the heavy products, and through the notches, is effected on each side, to a thickness corresponding to that of the side wall and of the tongue of said cover, or on a double thickness In the case where the notches are created by folding the precut tabs, the gripping of the box is effected on each side, to a thickness corresponding to that of the folded tongue, the side wall, and the tongue of said cover,

  on a thickness one and a half times higher.

  Therefore, regardless of the type of indentations, the risk of tearing the box containing heavy products, at its grip, are considerably reduced, thanks to the side tabs of the cover which, on the one hand, contribute to stiffening the grip gripping areas of the box by increasing their thickness, and which, on the other hand, extend over a length greater than that of the notches, avoiding the tearing primers, especially at the upper ends

indentations.

  Said lateral tabs of the lid are advantageous

  attached to the corresponding walls of the

  belt by gluing In addition, the length of these lan-

  lateral edges of the lid corresponds substantially to the width of the side walls with indentations.

  tear primers are totally removed.

  In an exemplary embodiment, said cover is defined by a flap from one of the side walls of said belt, other than those provided with the notches, and folded around a fold line, said flap being provided, respectively, with on the other hand, said lateral tongues pressing against the walls corresponding to

notches of the belt.

  According to another exemplary embodiment, said lid is defined by at least two flaps coming respectively from two side and opposite walls of said belt, other than

  those provided with indentations and arranged in the

  Long of each other, the two flaps ending respectively on either side, by two half-tongues forming said lateral tongues which are applied against the corresponding notch walls of the belt.

  Moreover, precut lines are formed in said lid to facilitate its opening without endom-

  In this way, the reinforced handles of the box are formed. The box preferably has a quadrangular cut-off section parallel to its bottom or cover. Its lateral belt then comprises eight side walls and

  has a rectangular section with four cut corners.

  Thus, heavy products, such as bottles, are

more maintained.

  The invention also relates to a blank of sheet material, such as cardboard or corrugated cardboard, for producing a box specified above, and of the type comprising: a series of aligned rectangular or similar shutters articulated to each other around lines parallel folding and intended to form the side belt of the box, two of said flaps of the suite, intended to face each other after the embodiment of the belt, being provided with indentations; and, side flaps hinged to these flaps around fold lines, perpendicular to the previous ones, and

  intended to form the bottom of the box.

  Advantageously, in one exemplary embodiment, the blank is remarkable in that said lateral flap, intended to form the lid of the box and articulated to one of the flaps of the suite, other than those provided with notches, is extended, respectively on both sides by two tabs

  side, articulated around fold lines perpendicular to

  eyelets to that connecting the flap to said corresponding flap

  and whose length is greater than that of the said

  crunches, said tabs being intended to be folded against the flaps with notches of the suite by coming

  substantially flush with said indentations.

  In another exemplary embodiment, the blank is remarkable in that the two lateral flaps, intended to form the lid of the box and coming from two flaps of the suite facing each other after the production of the belt and other than those at notches, are respectively extended on either side by half-tongues forming, after folding around folding lines perpendicular to those 5 connecting said flaps to the corresponding flaps, the side tongues whose length is greater than that

  said indentations, and which are intended to be applied against the notched flaps of the box coming substantially flush with them.

  The figures of the appended drawing will make it clear how the invention can be realized.

  Identical references designate similar elements. Figure 1 shows, in perspective, an embodiment of a box according to the invention, the lid is provided with lateral gripping reinforcements. FIG. 2 is a cross-section of said box on the plane II-II of FIG. 1. FIG. 3 shows the blank from which said box is obtained by folding. FIG. 4 represents, in perspective, partially

  cut away, another embodiment of said box according to the invention.

  FIG. 5 shows the blank from which is obtained, by folding, said box illustrated in FIG. 4.

  The box 1 shown in FIG. 1 is particularly intended to contain heavy products, such as containers, and

  It is more particularly made of a corrugated cardboard material Any other cardboard, synthetics or complex material could of course be suitable to the extent that the mechanical criteria required for the packaging of these heavy products are met.

  The box 1 usually comprises a bottom 2, a side belt 3 and a cover 4 in the closed position, closing said box Its cross section, parallel to the bottom or the cover, is polygonal and, in this example, has a quadrangular shape with cut corners This shape of the lateral belt makes it possible, as is known, to perfect the wedging of the product or of the group of products arranged in the box, in particular when they are cylindrical (bottles), and of to improve the compressive strength of the box Thus, the side belt 3 consists of four main walls 3 A, 3 B, 10 3 C and 3 D opposite two by two, and connected to each other by four side walls or sides 3 E, forming the cut corners and arranged at 450 relative to the walls 3 A to 3 D. In order to facilitate the handling of the box 1 containing the heavy products, two of the main and opposite walls of the belt 3, for example the s small side walls 3 A and 3 C, are respectively provided with oblong and identical notches 5, located in the upper part of the box, that is to say near the cover 4 These two opposite notches 5 are obtained, as shown in particular in FIG. 2, by folding precut tongues 3 A 1 and 3 C 1 respectively in the walls 3 A and 3 C, inside and towards the top of the box, around corresponding folding lines. 3 A 2 and 3 C 2 Each inner tongue 3 A 1 and 25 3 C 1, thus folded to 180 approximately around its fold line, is therefore substantially in contact with its side wall 3 A, 3 C. These oblong notches 5 define openings for

  the passage of the hands of the user, for transport30 of the box.

  According to the invention, to enhance the strength of the box at its grip, the cover 4 is advantageously extended by two lateral and opposite tongues 6, which are folded respectively and externally against the side walls 3 A and 3 C with notches 5 In particular, it can be seen in FIGS. 1 and 2 that the free edges 6 A of said tongues come substantially in line with the respective fold lines 3 A 2 and 3 C 2 of the tongues folded internally 3 A 1 and 3 C 1, that is to say flush

  Furthermore, it can be seen in FIG. 1 that the length L of the tongues 6 corresponds substantially to the width Lr of the side walls 3A and 3C to be covered.

  In this embodiment, the lid of the box is formed including two identical flaps 4 B and 4 D, from the large side walls 3 B and 3 D of the belt, and arranged one in the extension of the other , their free edges 482 and 4D2 facing one another Each lateral tongue 6 is formed of two identical half-side tongues 481 and 4D extending respectively from one side to the other.

  other flaps 4 B and 4 D which define said cover 4.

  These lateral tongues 6 are fixed to the corresponding side walls 3A and 3C in particular by gluing and thus participate in the reinforcement of the box 1 In fact, the gripping of the box 1 through the notches 5, is made of each side, on a thickness E corresponding to the sum of the identical thicknesses of the inner tongue, the lateral wall, and the outer tongue

  from the lid, that is to say on a triple thickness. In addition, since these tabs 6 have a length L sensi-

  correspondingly to the width of the side walls 3A and 3C of the belt, they thus extend beyond the oblong notches 5, avoiding the usual tearing primers Therefore, each set of external and internal tongues and by the side wall, and defining the gripping area of the box, forms a reinforced handle, which ensures a reliable transport of the box containing the heavy products, such as the bottles P

illustrated in Figure 2.

  In addition, the opening of the box 1 is subsequently obtained by means of precut lines 7 provided symmetrically in the flaps 4B and 4D of the cover 4 This avoids tearing-off the outer lateral tabs of the

  cover, and thus keep the box open in the state so that it can be easily moved later.

  FIG. 3 shows a blank F enabling, after folding, obtaining of the box 1, illustrated in FIG. 1. The blank is made of a cardboard material, preferably corrugated, but it could be made of synthetic material,

  even complex, associating for example a cardboard sheet 15 to a synthetic or metallic sheet.

  The blank F comprises a series of eight aligned rectangular flaps, interconnected by preformed and parallel LP fold lines. These flaps are intended to define the main walls 3A, 3B, 3C and 3D and secondary or 3E , forming the cut corners of the belt, and they therefore bear the same references Thus, the flaps 3 A and 3 D are spaced two by two by flaps 3 E. The flap 3 C ends, moreover, by a tongue 3 F hinged to this flap around a fold line LP parallel to the preceding This tongue 3 F is intended to ensure the attachment of the side belt 3 to section

  octagonal to obtain, applying by gluing against the secondary end flap 3 E of the suite.

  On the same side of said flaps of the suite are provided side flaps two by two identical 2A, 2C and 2B, 2D, and intended to form the bottom 2 of the box These flaps 2A and 2D are respectively articulated to the flaps 3A to 3D around fold lines LP 1, perpendicular to the fold lines LP connecting the flaps Similarly, on the other side of the flap sequence are provided side flaps two by two identical 4 A, 4 C and 4 B, 4 D, and intended to form the lid 4 of the-box The flaps 4 A to 4 D are also

  articulated to the flaps 3 A to 3 D around fold lines LP 1.

  The flaps 2 B, 2 D and 4 B, 4 D, respectively from either side of the large main flaps 3 B and 3 D, have cut corners C extending to 450 fold lines LP 1, and whose length corresponds to the width of the shutters 3 E, so that, after folding of the blank F, the bottom and the cover fit perfectly around the then octagonal side belt of the box Of course, after folding, the flaps 4 B and 4D cover flaps 4A and 4C. Note also that in the two small flaps

  3A and 3C are provided with the predefined tabs

  cut 3 A 1 and 3 C 1 intended to define, after their folding towards the inside of the belt 3, the oblong notches 5. Advantageously, the two flaps 4 B and 4 D extending on the same side the flaps 3 B and 3 D, and intended to form the top of the cover by covering the other flaps 4 A and

  4 C, are provided with lateral tabs 481 and 4D1 respectively.

  The tongues 481 and 4D1 are articulated to these flaps 4B and 4D around fold lines LP 2, perpendicular to the lines.

  L Pl and extending the cut corners C of these flaps.

  FIG. 4 shows another example of

  realization of a box 1 ', which differs from that illustrated

  FIG. 1 shows only a cover 4 formed by a single flap 4D '. The latter then has a contour corresponding to that of the belt 3, that is to say, in this case, octagonal, quadrangular with cut corners. , said belt 3 being identical to the previous one The flap 4D 'is articulated to the wall 3D of the belt, orthogonal to those 3A and 3C provided with the notches 5 In this example, the

  two lateral reinforcement tongues 6 ', prolonging

  on each side of the flap 4 D ', are di-

  rightly folded and fixed against the corresponding side walls 3 A and 3 C of the belt, so that their free edges 6 A 'are flush with the notches 5 Again, the length L of the tongues 6' is greater than

  that of oblong scallops 5, and corresponds

  at the width Lr of the walls 3A and 3C. Furthermore, there is provided a tab 6B 'which extends the flap 4D', on the opposite side to its connection to the wall 3D. This tab 6B 'applies by gluing against the corresponding edge of the wall 3 B of the belt Precut lines 7 'are

  furthermore provided in tab 6B ', to facilitate the opening

  lid 4, without tearing the tabs

reinforcements 6 '.

  Fl blank, shown in Figure 5, to obtain the box 1 'Note that the flaps 3 A to 3 E and flaps 2 A to 2 D intended to form respectively the side belt 3 and the bottom 2 of the box are similar to those of the blank F illustrated in Figure 3 Only the flap or wall 3 D is extended on the side opposite the flap 2 D by a side flap 4 D 'constituting the lid This flap 4 D' is provided with tabs reinforcement 6 'articulated around fold lines LP 2, perpendicular to the fold line L Pl

  connecting the flap 4 D 'to the flap 3 D, and the closing tab

  6 B 'of the flap 4 DI, hinged to it, around a

  LP 3 folding line parallel and opposite the line LP 1.

  It obtaining the boxes 1 and 1 'from the blanks F and Fl

  respective ones can advantageously be made by winding

  blanks around appropriate chucks of a machine

specific folding.

Claims (8)

  1 Box for the packaging of products, especially heavy, made of a cardboard material, synthetic or the like and of the type comprising a bottom (2), a side belt (3) and a cover (4), and at least two of the 5 side and opposite walls of said belt are provided with notches (5) for gripping the box, characterized in that said lid (4) is provided with at least two lateral and opposite tongues (6, 6 ' ), which are folded and fixed respectively against said walls (3 A, 3 C) notches of said belt, and whose free edges come at least substantially flush with said   indentations (5), the length of said tabs (6) being greater than that of said indentations (5).   Box according to Claim 1, characterized in that the said lateral tongues (6)   said cover (4) is attached to said corresponding walls of the belt (3) by gluing.   3 box according to one of claims 1 or 2,   characterized in that the length of said lateral tongues (6) of said lid (4) substantially corresponds to   the width of the side walls (3 A, 3 C) notches of said belt (3).   4 box according to one of the preceding claims 1 to 3,   characterized in that said lid is defined by a flap (4 D ') issuing from one of the side walls of said belt (3), other than those provided with notches, and folded around a fold line, said flap being provided, respectively on either side, with said lateral tongues (6) applying against the corresponding walls   with indentations (5) of the belt.   Box according to one of the preceding claims 1 to 3,   characterized in that said lid is defined by at least two flaps (4 B, 4 D) respectively from two side walls and opposite (3 B, 3 D) of said belt, other than those provided with notches (5), and arranged in the extension of one another, the two flaps ending respectively on either side, by two half-tongues (4 B 1.4 C 1) forming said tongues   (6) which are applied against the corresponding walls   notches in notches of the belt.   Box according to one of the preceding claims 1 to 5,   characterized in that precut lines (7) are formed in said cover (4) to facilitate its opening.   Box according to any one of the preceding claims   dentes 1 to 6, characterized in that it has, parallel to its bottom (2) or its cover (4), a quadrangular section with cut corners.   8 box according to claim 7, characterized in that its lateral belt (3) comprises eight side walls, and has a rectangular section at the four cut corners.   9 Blank of sheet material, such as cardboard or corrugated board, for making a specified box under one of   Claims 1 to 4 and 6 to 8, and of the type comprising:   a series of rectangular flaps or similar aligned, articulated to each other around parallel fold lines and intended to form the lateral belt of the box, two of said flaps of the suite, intended to face each other after the embodiment of the belt, being provided with indentations; and, side flaps hinged to these flaps around fold lines, perpendicular to the preceding, and intended to form the bottom and the lid of the box, characterized in that said lateral flap (4 D '), intended to form the lid of the box and articulated to one (3 D) flaps of the suite, other than those provided with notches, 10 is extended, respectively on either side, by two lateral tongues (6 ') articulated around lines folded (LP 2), perpendicular to that (LP 1) connecting the flap to said corresponding flap, and whose length is greater than that of said indentations, said tongues 15 being intended to be folded against the flaps (3 A, 3 C ) at   notches (5) of the suite coming substantially flush with said indentations.   Blank of sheet material, such as cardboard or corrugated board, for making a box specified under one of the   Claims 1 to 3 and 5 to 8, and of the type comprising:   a series of rectangular flaps or similar aligned, articulated to each other around parallel fold lines and intended to form the lateral belt of the box, two of said flaps of the suite, intended to face each other after the embodiment of the belt, being provided with indentations; and, lateral flaps hinged to these flaps around fold lines, perpendicular to the preceding ones, and intended to form the bottom and the lid of the box, characterized in that the two lateral flaps (4 B, 4 D) intended for form the lid of the box and come from two   flaps (3 B, 3 D) of the suite facing each other after the   of the belt, and other than those with notches,   extend respectively on both sides by half   tongues (4 B 1,4 D 2) forming, after folding around fold lines perpendicular to those connecting said flaps to the corresponding flaps, the lateral tongues (6) whose length is greater than that of said notches, and which are intended to apply against the shutters (3 A, 3 C) with indentations (5) of the box while coming substantially flush with them.