FR2840883A1 - Folding cake/pastry box has folding lines between the side walls and the base, and angled folding lines at two facing side walls, with side stiffener strips held in place at their ends - Google Patents

Abstract

The folding box (1), for cakes and pastries, has a rectangular or square base (2) with four side walls (4,6,8,10) linked to the base by folding lines (12,14,16,18). Two facing walls (8,10) have folding lines (36,42) which bisect the adjacent angles at the base. Two stiffener strips (70) of the same length are at the facing side walls, to be fitted to them inside the box and held in place (64,72) at their ends. The base and/or the walls and/or the stiffeners are separate from each other of paper, strong cardboard, plastics or a semi-rigid metal.

Description

forming (5).

  The present invention relates to a body of a folding box thus

  than a box with such a body of box.

  In the field of packaging, we know the folding cases which are delivered flat to the user, generally a retailer. These folding cases require a lot of handling during assembly. Furthermore, wind well known boxes, your folding semi-rigid thin material, cardboard, for example, or the like. These boxes, you say "boxes

  pastry "wind stored in folded form.

  These boxes usually have a bottom and four sides, two of which have traces of folding along the bisectors of the angles.

  adjacent to the bottom. These boxes keep folded due to their content.

  Wiles have neither shape stability when unfolded nor strength.

  In the luxury trade, in particular the field of fashion, leather goods, tableware, perfumery, champagnes, wines and spirits, taking into account the drawbacks linked to the poor appearance of boxes folding, we usually use rigid, mounted boxes,

  comprising body and cover of the socket type.

  These luxury boxes, however, have the disadvantage of taking care of

  large volumes, especially in storage, even though they are defective.

  This can represent significant costs not only in storage,

  but during transport, especially for export.

  Document FR 2 701 925 describes foldable boxes comprising a box body and a stiffener conforming to the shape of the box bottom and consists of several articulated panels. These boxes, however, have the disadvantage of their high weight due to the large size of the stiffener and

  of its annex panels, and of the structural complexity of the stiffener.

  The present invention relates to a box body which can be stored in a reduced volume, in particular the volume of the cover provided for covering the body once unfolded or mounted, the rigidity of which is ensured by stiffeners, simple to to realize, to unfold or to assemble, of stable form once unfolded, and whose unfolding is irreversible, in certain embodiments. These boxes have the appearance and solidity that one expects from a luxury box while avoiding the drawbacks of many long manipulations when unfolding known boxes, and the additional cost.

related to weight.

  Thus the present invention relates to a pastry box body comprising a rectangular or square bottom, four francs each connected to one side of the bottom by a fold line, two opposite of these francs comprising fold lines according to the bisectors of the angles. adjacent to the bottom, as well as means for holding edge to edge of the adjacent sides. This box body also comprises two bands forming a stiffener which winds substantially the same length as the two opposite flanks comprising fold lines. Wiles wind intended to be applied on these francs inside the body of box. The box body comprises means for holding these strips by the corners at their ends. These wind means provided on these francs in the vicinity of the edges

junction of the francs.

  Preferably, the wind stiffening bands applied to the francs. However, one could provide one or more stiffeners arranged at any location between the two non-folding francs,

perpendicular to these francs.

  In a particular embodiment, each of the bands forming a stiffener is fixed to the internal face of each of the flanks

  with traces of folding, and the assembly of the box is irreversible.

  On the other hand, for the case where the stiffeners provided for free wind that is to say not fixed on the francs with traces of folding, the assembly is

  reversible, by bending the stiffeners.

  Due to the existence of fold lines, we can distinguish on each of the folding francs a central part, in the shape of a trapeze, and corners,

  intended to be folded in the folded position and applied to the central part.

  The fixing is carried out on the central part of the sides having traces of folding, that is to say that it is not carried out on the corners of the francs. The fixing of the stiffeners on the internal face of the francs comprising traces of folding can be carried out by any suitable conventional means in the field of cardboard and / or plastics. Wile can in particular be produced using adhesives, such as glue, for example by glue dots, produced in particular with hot glue or not, sprayed or not, or for example applied by brush, a double sided tape, or staples. For reasons of appearance of the shaped boxes, we

  however prefers adhesives to stapling, transperging.

  In addition, the present invention relates to a box comprising a box body according to the invention and a cover which can be of the interlocking type, non-folding, and can contain the box body. you in the folded position, or even be made up of a second box body according to the invention,

  and can stembo ^ ter on or in the first box body.

  In addition to the advantages mentioned above, it appears that the box body according to the invention can be contained, in a folded manner, inside a non-folding cover, for example of the interlocking type. This presents great advantages from the point of view of storage, body of box and matching lid) which can be delivered and stored together, in a space reduced to that of the lid, and without risk of crushing or deformation thereof. . Furthermore, in certain embodiments where the wind stiffeners are fixed to the sides, the mounting after unfolding is irreversible.

  The invention will be better understood on reading the description

  following detailed and in view of the accompanying drawings.

  - Figure 1 is a bottom view of a box body according to the invention flat, - Figure 2 is a front view of a stiffener, - Figures 3, 4 and 5 illustrate schematically, in perspective,

  three stages of unfolding or mounting of a box body according to the invention.

  To reaiiser the box body and the lid, as well as the stiffeners, one can use independently for each other, any semi-rigid material known for making boxes. It is possible, for example, to use cardboard with a thickness of between 0.5 mm and 3.5 mm, preferably greater than 0.8 mm and less than 1.5 mm. You can also use strong paper. One can also use PVC, Plexiglas or any plastic material, for example semi-rigid. We can also use

  metal bands, especially for the stiffener.

  The bottom of the box represented in FIG. 1 is produced from a sheet of semi-rigid material, for example gray cardboard 1 mm thick (10/10). The bottom 2 is bordered by the four francs 4 and 6, 8 and 10 connected to the bottom by fold lines 12, 14, 16 and 18 made by trace on a half

thickness of this carton.

  In the embodiment represented in FIG. 1, the fold lines 36, 42 are made by half-thickness trace, on the internal face of the cardboard sheet, along the bisectors of the angles of the franc 10 adjacent to the bottom 2 and delimit corners 11, 13; similar fold lines 38, 40 wind formed on the franc 8, and delimit corners 7 and 9

  w hich are excluded from the central part on which the stiffener will be fixed.

  In the example shown, along the fold lines 36, 38, 40 and 42, at the opposite end from the angles adjacent to the bottom, the trace is through, the semi-rigid material is completely cut, to facilitate assembly. The edges forming the edges of the franks 4 and 6 have notches 64, 66 for the franc 6, and 62, 60 for the flank 4. Furthermore notches 26, 24, and 22 in quarter wind circle provided at the angles of the flanks foldable 8 and

  adjacent to the bottom, to facilitate folding.

  Along the fold lines 12 and 14 connecting the franks 4 and 6 to the bottom 2, wind provided for the notches 30, 32, 28, 34, to receive the tongues of the stiffeners, in the folded position of the box body, and thus keep it in the folded position. These wind notches provided at a distance from the corner substantially equal to the distance from the notches 60, 62, 64 and 66 which

  keep the box in the open position.

  In the present description, the words "fold line", in particular

  with regard to the fold lines connecting the bottom to the francs, are understood as a simple fold line made, for example, by tracing on a part of the thickness only, or using a wheel, to allow folding by thinning of the material, but also as an assembly of two planes arranged edge to edge, produced for example by gluing the two planes by means of strips of adhesive paper or glue, or by any equivalent means and adapted to the material semi-rigid used, or to the semi-rigid materials used, in the case where all the parts of the body of the box (bottom, side) do not wind from the same material, for

  example if bottom and frank wind of different matters.

  These edge-to-edge holding means for the adjacent franks are not shown in the drawings. They are generally made of adhesive paper or glued, usually outside, straddling the edges of the francs. The box body is made from a flat sheet, the process using conventional means for forming fold and cut lines, gluing and laying of coating material which is well known. of the man of art. These procedures are executable with

automatic machines.

  In Figure 2 appears the stiffener 70 provided to adapt along the foldable francs 8 and 10 of length substantially equal to that of the small dimensions. At each end, a tongue 72, 74 is provided, of width adapted to that of the notches 30, 32, 28, 34 provided along the fold lines of the bottom and the sides and that of the notches 60, 62, 64, 66 provided along the edges of the flanks forming an edge; the length of the tongue is less than that of the notches 60, 62, 64, 66 limited by the cutouts 48, 56; 46, 54; 44, 52; 58, 66. Adhesive marks can be provided on these strips to prevent the fixing of the stiffeners on

  the francs intervenes on the corners of the sides intended to be folded.

  Other notches or cutouts can be provided to facilitate

manufacturing operations.

  The length of the stiffeners is approximately equal to I - 2X, representing approximately the width of the tabs 72, 74 as well as the thickness

  cardboard, and the length of the bottom sides.

  In the embodiment described in Figure 2, the wind stiffeners

  made of the same semi-rigid cardboard (10/10) as the bottom and the sides.

  However, any other material or other thicknesses of the same material can be envisaged. Thus, for a 12/10 cardboard box body, 10/10 cardboard stiffeners can be used. In particular, one can use

  stiffeners of a more dense carton than that or those of the box body.

  In Figure 3 appears' ^ t fa, con schematic a box body folded along the fold lines 12, 16, 18 and 14. The corner 7 folds of the side 8 folded along the fold line 38 leaves appear ^ 'be part of the fixed stiffener 70

at franc 8.

  The bottom of the box appears folded up like a classic pastry box, the stiffeners may nten the body of the box, by their tongues inserted in the notches 28, 30 , 32, 34 located near the fold lines. During assembly, the sides 8 and 10 are moved aside to bring them towards the vertical position, and the frets 4 and 6 are also straightened, as are the stiffeners. The tabs have left the notches (not shown) which kept the box folded. In FIG. 4, an intermediate phase of the unfolding is represented. The tongues of the stiffeners have left the notches 28, 30, 32, 34 of the fold lines and will join the slots provided at the junction edges of the sides. Thus, the tongue 72 has left the notch 30 and will join the slot 64, when the corner 7 is in

  the same plan as the central part of franc 8.

  In Figure 5 appears the result of the assembly when the traction on the edges 8 and 10 allowed them to reach the position perpendicular to the

  bottom 2: the tongues have reached the slots of the bones and are inserted therein.

  Franks 4, 6, 8, 10 wind perpendicular to bottom 2, the stiffener is

  applies to franc 8 whose corners 7 and 9 are immobilized.

  It appears that the stiffeners have the function of keeping the central part of the folding franks in the same plane as the corners, when the box is mounted. The maintenance is carried out in the example described here in fa, detailed con by tabs formed at the ends of the bands and intended to be engaged in slots, in the immediate vicinity of the edges of junction of the francs. It could also be in particular by gluing or stapling, for example, the ends of the strips with the corners delimited.

  by the fold lines, in the mounted position.

  In the folded state, the box body 1 can have a height similar to the height of the cover provided for the mounted box to fit therein, and the box body according to the invention can store it in the folded position, thereby reducing the storage volume to the volume of the cover. This variant has an optional character, the cover also being able to be made up of a body

  folding box, stiffens or not.

  In another embodiment, not shown, the stiffeners are not fixed, and can be delivered at the same time as the box body, for example placed inside the folded body; they are adjusted in the notches of the edges by the user who unfolds the box. The folding is then reversible, by flexibility of the stiffeners, and the notches 28, 30, 32,

  34 useless wind bottom fold lines.

  In the embodiment shown, the width of the stiffeners is less than that of the francs. The stiffeners, once their tabs are engaged in the notches of the edges, are hidden in the box. However, it is also possible to provide stiffeners wider than the francs, which protrude from the body of the box once unfolded: they can then delimit with the francs the shoulders for receiving the dimensions of a cover mounted on the box, otherwise said to function as a gorge. It is possible, for example, to use a cover of the socket type, or a cover formed by a body of a folding box according to the invention, in the same way.

  size or slightly larger, or any other suitable type of cover.

  In the embodiment shown, the box body is a rectangularepipedic rectangle; one can however, without departing from the scope of the invention, provide for box bodies at an angle, or two opposite francs would be rectangular with different widths and the other two francs

  opposite would have a trapezoid shape.

  The box bodies of the invention can take any size compatible with the required rigidity, depending on the semi-rigid materials used. However, folding requires that the length of the non-folding francs be greater than the sum of the widths of the folding francs. In the accompanying drawings, the semi-rigid material is shown without appearance coating. However, and in particular for luxury boxes, the semi-rigid material can be coated with it, as usual in the carton sector. The coating materials can hide the slots and notches mentioned above, the tabs of the ends of the strips may extend into the slots between the sides and the coating material. By appearance coating material means any material, usual in cardboard, capable of being applied to the outside of the box body to modify its appearance. It can be paper, fabric, satin appearance or texture or not, plastic, leather, "Suede!" Type material, metal, paint, for example. The interior of the box can also be covered, the possible notches and slots being, however, provided in the interior coating materials for engaging tabs therein.

Claims (11)

claims   1 / Body of pastry box comprising a rectangular or square bottom (2), four francs (4, 6, 8, 10) each connected to one side of the bottom by a fold line (12, 14, 16, 18 ), two opposites (8, 10) of these sides comprising fold lines (36, 38, 40, 42) along the bisectors of the angles adjacent to the bottom, and means for holding edge to edge of the adjacent franks, characterized in that that it also comprises two bands forming a stiffener (70) which wind substantially the same length as said two opposite francs (8, 10) and which are intended to be applied to these francs (8,) inside the body of box, and means for holding these bands at their ends on the franks in the vicinity of the junction edges francs.   2 / box body according to claim 1, characterized in that the holding means comprise tongues (72, 74) formed at the ends of said strips and intended to engage in slots of the francs, and means for bonding or stapling the ends of bands on the corners.   3 / box body according to claim 2, characterized in that said   wind slits formed in the junction edges of the sides.   4 / Box body according to claim 2 or 3, characterized in that said slots wind formed along said edges in the francs   adjacent to the francs on which the bands are applied.   / Box body according to one of claims 1 to 4, characterized in that   that each strip is fixed to the franc to which it is applied.   6 / Box body according to claim 5, characterized in that said strip is fixed by gluing or stapling to the franc on which it is applied.   7 / Box body according to one of claims 2 to 6, characterized in that   that the wind slots formed by notches (60, 62, 64, 66) of the edges of the adjacent franks (4, 6) to the franks (8, 10) on which the wind bands are applied. 8 / Box body according to one of the reve nd ications 2 to 7, characterized in that the bottom (2) and the francs (4, 6, 8, 10) are covered externally with a material of coating in appearance and in that the tabs (72) at the ends of the bands stand in said slots between the sides and the   coating material which covers them.   9 / Box body according to one of claims 2 to 8, characterized in that   that notches (28, 30, 32, 34) are provided for in the adjacent francs 0 to the opposite francs having fold lines, these notches having a width at least equal to the thickness of the tongue of the stiffeners and a long length. r at least equal to the long ur of the tongue of the stiffeners, these notches being arranged in the immediate vicinity or on the lines of   folding (12, 14) connecting the bottom (2) to said adjacent francs (4, 6).   10 / box body according to claim 7 or 9, characterized in that the width of the notches corresponds substantially to the thickness of the strips forming stiffener.   11 / Box body according to one of claims 1 to 10, characterized in that   the bottom (2) is rectangular and the wind stiffeners are applied to the small   francs (8, 10) connected to the small sides of the bottom.   12 / box body according to one of claims 1 to 11, characterized in that   that the bottom (2) eVou the francs (4, 6, 8, 10) eVou the stiffeners (70) are, independently of each other, in strong paper, cardboard, plexiglass or   plastic or metal, for example semi-rigid.   13 / Bo ^ 'te comprising a first body of bo ^' te according to one of   claims 1 to 12, and a second box body according to one of