"Folded, glued packaging box for light and fragile products such as pastries"

Abstract

TITLE: "Folded, glued packaging box for light and fragile products such as pastries" Box (100) with outer sides (3) and inner sides (2) consisting of a short side (23) extending into a top (22) ending in a handle (23). The top (22) is positioned between the outer sides (3), and the handles (23) are pressed against each other. The lateral edges of each handle (23) have protruding prongs (232) that extend beyond the width of the top (22) and fit into notches (312). - The handle (23) extends above the prongs (232) upwards into a cutout (230) formed by its upper edge (233) and a stop that prevents the handle (23) from being pushed in. Figure 1

Description

Title of the invention: "Folded, glued packaging box for light and fragile products such as pastries" FIELD OF THE INVENTION

[0001] The present invention relates to a packaging box made by the glued folding of a cut blank having a bottom bordered by two pairs of sides, inner sides and outer sides, the sides having formed a small side delimiting the volume of the box with the pair of outer sides and continuing with a top determined by a handle, the handle is connected to the top by a fold, the top of each inner side coming between the outer sides to cover the box and the handles of the inner sides apply to each other to form the handle of the box. STATE OF THE ART

[0002] Such a packaging box is already known according to patent FR 3 008 390.

[0003] PURPOSE OF THE INVENTION

[0004] The present invention aims to produce a glued packaging box, as defined above, which has a rigid structure, stabilized between the pairs of inner and outer sides.

[0005] DESCRIPTION AND ADVANTAGES OF THE INVENTION

[0006] To this end, the invention relates to a box made by folding and gluing a cut blank, having a base bordered by a pair of outer sides and a pair of inner sides, each composed of a short side delimiting the volume of the box with the pair of outer sides and continuing into a top ending in a handle, connected to the top by folds, the outer sides extending above the volume of the box

[0007] - the top coming between the outer sides to cover the box and the handles fitting together to form the handle of the box,

[0008] box characterized in that

[0009] - the lateral edges of each handle have protruding beaks relative to the width from above,

[0010] - the outer sides have notches to receive the spouts when the tops are positioned on top of the box so as to hook into the respective notch and allow the box to be lifted by the joined handles,

[0011] - the handle continues upwards with a cutout forming on its upper side a stop preventing the handle from being pushed in when the beak is engaged in the notch.

[0012] In other words, the invention relates to a packaging box in which the lateral edges of each handle have protruding beaks relative to the width of the top, That is to say, extending beyond the line of the two lateral edges of the top. The outer sides have notches to receive the spouts when the tops are in place on the top of the box, so that they hook into the notch on the respective outer side and allow the box to be lifted by the handles. The handle continues upwards, above the spout, with a cutout forming, on its upper side, a stop that prevents the handle from being pushed in when the spout is engaged in the notch on the outer side.

[0013] According to another advantageous feature, the stop has an inwardly curved shape. This shape promotes the blocking of the handle if it is pushed downwards and enhances the action of the stop in blocking the handle.

[0014] According to another advantageous feature, the beak has a ramp originating from the lateral edge of the band forming the handle, continuing outwards by a support segment truncating the tip of the beak and ending with an edge which hooks against the top of the notch. BRIEF DESCRIPTION OF THE FIGURES

[0015] The present invention will be described in more detail below with reference to an embodiment of a packaging box shown in the accompanying drawings in which:

[0016] [Fig. 1] Perspective view of a box, according to the invention,

[0017] [Fig. 1A] Perspective view of the box of [Fig. 1], one of whose outer sides has been removed,

[0018] [Fig.2] Plan view of the detail of the end of the handle and cross-sectional view of the top of the outer side with the notch,

[0019] [Fig.3] decomposition of the engagement movement of the handle's beak in the notch on the outside,

[0020] [Fig.4] example of a cut blank for making a box according to the invention.

[0021] DESCRIPTION OF AN IMPLEMENTATION METHOD

[0022] According to figures 1, IA, the invention relates to a box 100 made by folding and gluing a blank cut from a sheet, the box is of a shape similar to a rectangular parallelepiped composed of a base (F) bordered by two pairs of sides:

[0023] two sides 2 called “inner sides” and

[0024] two sides 3 called “outer sides”.

[0025] These qualifiers, without having dimensional significance, serve only to distinguish the sides in order to simplify the description of box 100.

[0026] Since box 100 is symmetrical or pseudo-symmetrical with respect to rotation, the sequence of the two sides 2, 3 of one of the two pairs is found on the two sides of the other pair of so that the description can be limited to that of an inner side 2 and that of an outer side 3.

[0027] The outer side 3 is a crease-free surface, rising above the volume of the box that will be covered.

[0028] The inner side 2 consists of a small side 21 delimiting the volume of the box which continues with a top 22 and a band forming a handle 23. The top 22 is connected to the small side 21 by a fold P2; the top 22 itself continues with the handle 23, connected to the top 22 by a fold P3.

[0029] The direction of folding of the folds P2, P3 is opposite as shown in [Fig.1]: the top 22 and the handle 23 are folded around the fold P2, transverse to come between the two outer sides 3. The spacing of the outer sides 3 of the unfolded box corresponds to the width of the top 22 between its lateral edges 221.

[0030] The handle 23 on the inner side 2 and the symmetrical handle 23 on the other inner side 2 of the box 100, when juxtaposed, form the handle of the box. Each handle 23 has, for example, a cutout 231 to facilitate gripping and prevent the handle from slipping between the fingers.

[0031] On each lateral edge, the handle 23 has a beak 232 hooking into a notch 312 in the top of each outer side 3, above the closed volume of the box.

[0032] The beak 232 protrudes from the line extending the lateral edge 221 from below, that is to say, the beak protrudes from the width thus defined of the box.

[0033] The notch 312 is an elongated, vertical cutout in the upper part of side 3 where the spout 232 rests when the handle 23 is in the closed position covering the box. The notch is generally oriented vertically. It is in a position analogous to that of the two handles 23, which are joined and pressed against each other when the box is closed. If the box 100 is symmetrical, the two handles 23 lie in the transverse plane of symmetry, and the notch 312 on each outer side 3 is in the axis of symmetry of the outer side 3.

[0034] The upper edge 311 of the outer side 3 according to the invention is at least the segment located substantially vertically from the notch 312; this part of the whole upper edge can be in relief or in recess with respect to the overall shape of this edge, depending on the aesthetic choices to which the overall shape of the box responds.

[0035] Above the spout 232, the handle has a stop 233 so that it can rest, if necessary, on the upper edge 311 on the outer side 3 and limit the indentation movement that a downward push on the handle 23 could exert on the top 22, i.e. the two tops 22 of the box 100 and unhook the two pairs of spouts 232.

[0036] The attachment of the two pairs of beaks 232 to the two handles 23 on the two inner sides 2 will be described below with reference to [Fig.2], showing in its parts A and B, the detail of the handle 23 seen in plan and that of the outside side 3 in section of its upper part, at the level of the notch 312.

[0037] According to part A, the edge of the handle 23 has a cutout 230 delimiting the spout 232 protruding from the width of the top 22 (distance of the two lateral edges 221, of the top 22), which is also the width of the box 100 between its two outer sides 3.

[0038] The spout 232 is formed by a ramp 232a whose origin is, for example, located on the fold P3 and which spreads outwards; the ramp continues by a support segment 232b truncating the tip of the spout to continue along the top 232c of the spout 232. The ramp 232a facilitates the spreading of the top of the sides 3 when the two handles 23, assembled, descend between the sides 3 and the support segment 232b prevents point contact of the spouts 232 against the inside of the two outer sides 3. The support segment 232b is preferably parallel to the direction of the lateral edge 221 or even slightly inclined.

[0039] The top 232c of the spout is inclined downwards towards the base of the spout, i.e. to the bottom 230a of the cutout 230, so that the natural elastic lifting of the handle 23, caused by the elasticity of the folds P2, P3 or the weight of the box held by the handles 23, forces the two spouts to engage completely in the respective notch, delimiting the lower side of the cutout 230.

[0040] The top of the cutout 230 forms a stop 233, horizontal or even inclined (233a) (drawn in dotted line in the upward direction towards the inside) to accentuate the retaining effect of the handle 23 resting, where appropriate, by this stop 233, 233a on the edge 311 of the side 3.

[0041] The gap (al) is the vertical distance between the tip of the beak 232 and the top of the cutout 230 forming the stop 233; the gap (a2) is the vertical length of the bottom 230a of the cutout 230.

[0042] Part B shows in cross-section the notch 312 whose upper side 312a is at a distance (dl) from the edge 311, vertically from the upper side 312a.

[0043] The notch 312 has a height (d2) greater than the height of the beak 232; these dimensions (dl, d2) are measured along the line extending each edge 221 of the top 222.

[0044] The bottom 230a of the cutout 230 is set back from the right of the edge 221 so that the outer side 3 is not deformed outwards from the box 100 when the beak 232 is hooked in the notch 312.

[0045] Depending on the material of the box, it may be advantageous to place the handle 23 in slight compression between the outer sides 3 and in this case the bottom 230a will not be recessed but slightly raised to rest on the outer side 3.

[0046] The closing movement of box 100 is schematically represented in [Fig.3] by the steps (IV).

[0047] To close the box 100, unfolded from the cut and glued blank, the top 22 is folded back on the two inner sides 2 around the fold P2 and the two handles 23 are brought together to pinch them and then lower them (arrow D) (I) between the two outer sides 3.

[0048] The ramp 232a of each lateral edge of the handle separates the top of the two sides 3 by a wedge effect.

[0049] On each side, the beak 232 slides down by its support segment 232b against the inner surface of the side (II, III) until the position of the beak passes under the upper end 312a of the notch 312 and the cross (IV); the edge 232c of the beak thus hooks against the top 312a of the notch 312. The elasticity of the folds P2, P3 of the inner sides 2 causes the released handles 23 to be pushed and lifted in the opposite direction (-D).

[0050] Box 100 is thus locked.

[0051] If a force is thus exerted on the handle 23 in the downward direction (D), the movement will be limited by the coming of the stop 233 against the upper edge 311 on both sides 3 and the cover of the box will not be able to be released, which is a necessity for holding and transporting the box.

[0052] Otherwise, the loaded box would fall and the tightening of the sides, which would no longer be held apart transversely and longitudinally by the top 22 and the handles 23, would crush the contents of the box.

[0053] To open the box 100, without deforming it and without damaging its contents, it is simply necessary to push outwards the top of the two outer sides 3, enough so that the two prongs 232 of the handle 23 can slide and rise between the top of the two outer sides 3.

[0054] The box is thus protected against accidental opening by the detachment of the handles.

[0055] Figure 4 shows a planar unblocking of the die-cut blank 200 corresponding to an example of a box. This blank consists of the assembly of the inner sides 2 and the outer sides 3. The inner sides are composed of the short side 21, the top 22, and the handle 23. The top 22 is connected to the short side 21 by a fold P2. The top 22 is connected to the handle 23 by a fold P3.

[0056] One of the outer sides 2 has a tab 24 which is used for gluing the blank; this tab 24 is glued against the inside of the outer side 3.

[0057] The outer sides 3 which do not have folds each have a notch 312 surmounted by the upper edge 311 which is raised here relative to the rest of the upper edge of the outer side 3.

[0058] The box 100 described above has a rectangular cross-section that is symmetrical in the transverse direction (direction of the folds P2, P3) and in the longitudinal direction (perpendicular to this transverse direction).

[0059] Although in general the box is a cylindrical or conical volume with a quadrangular section, the bottom F is not necessarily perpendicular to the direction of the edges formed by the sides.

[0060] By aesthetic choice, the box may have a cylindrical or conical shape, inclined and its section is not necessarily that of a right quadrangle or a parallelogram; it may also be an irregular quadrangle, i.e. a trapezoidal section; whatever these shapes, the closing and locking mechanism of the box described above applies and the notion of pairs of sides is not implicitly limited to the parallelism of the sides.

[0061] In summary, the invention relates to a box 100 made by folding and gluing a cut blank 200, having a base bordered by a pair of outer sides 3 and a pair of inner sides 2, each composed of a short side 21 delimiting the volume of the box with the pair of outer sides 3 and continuing into a top 22 ending in a handle 23, connected to the top 22 by folds P3, the outer sides 3 extending above the volume of the box

[0062] - the top 22 coming between the outer sides 3 to cover the box and the handles 23 applying one against the other to form the handle of box 100,

[0063] box characterized in that

[0064] - the lateral edges of each handle 23 have protruding beaks 232 relative to the top width 22,

[0065] - the outer sides 3 have notches 312 to receive the nozzles 232 when the The two handles 22 are positioned on top of the box so as to hook into the respective notch 312 and allow the box to be lifted by the handles 23 joined together,

[0066] - the handle 23 continues upwards with a cutout 230 forming by its side top 233, 233a a stop blocking the sinking of the handle 23 when the beak 232 is engaged in the notch 212.

[0067] According to another characteristic, the stop 233 has a shape 233a rising inwards.

[0068] According to another feature the beak 232 has a ramp 232a originating from the lateral edge of the band forming the handle 23, continuing outwards by a support segment 232b truncating the tip of the beak 232 and ending with an edge 232c which hooks against the top 312a of the notch 312.

[0069] According to another feature, the bottom 230a of the two cutouts 230 of the handle 23 is spaced substantially to the width of the box.

Claims

Demands

1. Box (100) made by folding and gluing a cut blank (200), having a base bordered by a pair of outer sides (3) and a pair of inner sides (2), each composed of a short side (21) delimiting the volume of the box with the pair of outer sides (3) and continuing into a top (22) ending in a handle (23), connected to the top (22) by folds (P3), the outer sides (3) extending above the volume of the box - the top (22) coming between the outer sides (3) to cover the box and the handles (23) applying to each other to form the handle of the box (100), box characterized in that - the lateral edges of each handle (23) have protrusions (232) projecting from the width of the top (22),- the outer sides (3) have notches (312) to receive the spouts (232) when the tops (22) are in place on the top of the box so as to hook into the respective notch (312) and allow the box to be lifted by the handles (23) together, - the handle (23) continues upwards with a cutout (230) forming by its upper side (233, 233a) a stop blocking the depression of the handle (23) when the spout (232) is engaged in the notch (212).

2. Box (100) according to claim 1, characterized in that the stop (233) has a shape (233a) rising inwards.

3. Box (100) according to claim 1 or 2, characterized in that the spout (232) has a ramp (232a) originating from the lateral edge of the band forming the handle (23), continuing outwards by a support segment (232b) truncating the tip of the spout (232) and ending with an edge (232c) which hooks against the top (312a) of the notch (312).

4. Box (100) according to claim 3, characterized in that the edge (232c) of the spout is inclined in the downward direction towards the base of the spout.

5. Box (100) according to any one of claims 1 to 4, characterized in that the bottom (230a) of the two cutouts (230) of the handle (23) is set apart substantially to the width of the box.

6. A method for opening a box (100) according to any one of the preceding claims, comprising a stage in which the top of the two outer sides (3) is simply pushed outwards sufficiently so that the two prongs (232) of the handle (23) can slide and move up between the top of the two outer sides (3).

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