PACKAGING WITH MEANS FOR HOLDING AN OBJECT

Description

[0001] The field of invention is logistics.

[0002] More specifically, the invention relates to a package, or a means of logistical packaging, i.e. a container, for transporting objects between two destinations, by means of a package.

[0003] To transport an object safely and securely, packages such as boxes or cartons are known.

[0004] Generally speaking, packages include a box with a base and a peripheral rim which together define a storage volume in which the object to be transported is housed.

[0005] The packages also include a lid that can be moved relative to the box. These lids can, in particular, adopt a closed position in which the lid closes the storage volume of the box.

[0006] In order to protect the objects being transported, some packages include means of retention to keep the object to be transported in the box.

[0007] Restraint means are known that take the form of foam panels integrated into the box and the lid. The foam panels can, if necessary, be attached to the box. In other words, the foam panels can be integrated into the box only if their presence is required.

[0008] More precisely, the foam panels are secured to the bottom of the box, possibly to its peripheral edge, and to the lid.

[0009] The object to be transported is then inserted into the storage volume so that it comes into contact with the foam and is blocked as little as possible by the foam on the bottom and the foam on the lid.

[0010] The major drawback of this type of restraint is its thickness, or, in other words, the space it takes up in the storage volume of the box, and the waste management of this type of single-use product.

[0011] Indeed, the foam takes up a major part of the storage volume of the box. However, the foam has elastic characteristics so as to form deformable retaining means to effectively fit the contour of the object to be transported, and thus wedge it.

[0012] However, depending on the size of the item, multiple packages should be planned.

[0013] For example, for a large item and for a small item, the same box cannot be used.

[0014] In the case of a small item, if a box or package suitable for a large item is used, the foam is not properly deformed when in contact with the small item, and the latter may then move within the storage space of the box, with the risk of being damaged.

[0015] On the contrary, if a large object is placed in the storage volume of a box intended to contain a small object, the package may become unusable due to insufficient space in the storage volume, as the lid cannot then be closed properly so as to actually seal off the storage volume of the box. As a result, the object is not truly protected. It is, moreover, visible to anyone transporting the package, which could lead to a risk of theft of the object.

[0016] Carriers or packaging professionals must therefore have packages of different sizes depending on the size of the objects to be transported.

[0017] Furthermore, the presence of the foam makes the package bulky when not in use, even if the package is foldable to bring it into a storage or "flat" storage configuration.

[0018] Indeed, folding the package allows for optimizing its size when not in use. However, compressing the foam when folding the device can affect the foam's effectiveness in protecting the object being transported. When foam is compressed, it loses elasticity and may not expand properly upon decompression; this is especially true the longer the foam is compressed.

[0019] To avoid this loss of elasticity, it is therefore necessary to avoid excessive compression of the foam, which only allows a partial reduction in the size of the package when it is not in use.

[0020] Storing packages, whether in their intended configuration, partially folded, or separated, therefore requires a large room. Indeed, the foam is separated from the box for different package sizes. This then represents a significant storage cost that is generally charged to the end consumer.

[0021] According to another known technique, the retaining means are in the form of a plastic envelope inside which the object to be transported is slipped, the envelope is then deformed so that its walls come into contact with the object to be transported and hold it in its position.

[0022] According to a first type, the envelopes can be secured to the bottom of the box and their deformation can be carried out for example by heating so as to shrink the material, generally a plastic material, so that it stiffens on contact with the object.

[0023] A disadvantage of this solution is that the deformation of the envelope, when carried out by heating, cannot be carried out by everyone since this technique involves the use of specific heating equipment.

[0024] In fact, heating means, such as thermal heaters for example, must be used and may require special training so that only professionals can deform the envelope.

[0025] Furthermore, when the envelope is attached to the bottom of the box, this can present a major disadvantage for the integrity of the box, particularly if it is made of cardboard, as excessive heat can destroy the cardboard by burning it.

[0026] Furthermore, inserting the object to be transported into the envelope may prove difficult, or even impossible (depending on the respective dimensions of the object and the envelope).

[0027] This is particularly true if the object to be transported is inserted into the envelope once the box is in shape, i.e. the storage volume is defined, the peripheral edge of the box in particular presenting a major obstacle to the insertion of the object into the envelope.

[0028] To overcome this, it may be necessary to first insert the object into the envelope, then form the box and finally deform the envelope.

[0029] This represents a significant handling time which can be detrimental for professionals and also be impossible to achieve for individuals, particularly for deforming the envelope or shaping the box.

[0030] According to a second type, the envelope can also be secured to a tray intended to be housed in the box. In this case, the object is introduced inside the envelope and then, in order to secure and hold the object, the envelope is deformed by folding the edges of the tray, so as to stretch the two walls of the envelope to trap the object. Once this is finished, the folded tray can be inserted into the box and then the lid can be closed on the box.

[0031] These means of restraint also have certain disadvantages.

[0032] Indeed, inserting the object into the envelope does not pose a problem, however the deformation of the tray, in particular the folding of its edges, represents a complicated manipulation, even impossible to carry out when the object is bulky and the envelope to be deformed offers significant resistance to deformation. The deformation of the envelope can then become time-consuming and put off professionals who will then make a partial deformation or even offer a larger package, resulting in an increase in the transport cost for the end consumer.

[0033] In addition, this requires the storage of both the box, the lid and the restraint means, which represents a detrimental total footprint and therefore an additional cost which is often passed on to the end customer.

[0034] To address these drawbacks, means of pulling the tray towards the cover have been designed.

[0035] These traction means include in particular elastic bands attached to the tray, on which the user pulls to bring the tray closer to the cover and thus block the object to be transported between the tray and the cover.

[0036] When the object is blocked, attachment means are then used to maintain the traction effort initiated by the user and thus release the latter.

[0037] These attachment means are in the form of a hook intended to hold the elastics in relation to each other.

[0038] Although this solution provides good retention of the object in the package, it still remains improvable.

[0039] Indeed, these means of restraint require an effort from the user who must both perform a pull and then maintain the pull initiated to use the attachment means.

[0040] Therefore, the user may lose the benefit of the traction initiated when handling the hooking means. JPS57101744U relates to a storage case which allows decorative papers such as paper, tissue paper, paper napkins, paper diapers and the like to be easily removed with a single piece thereof. US4032103A relates to an adjustable stand for supporting heavy loads at different heights in which elastic means are provided to at least partially counterbalance the weight of the movable element in order to facilitate adjustment of the vertical height of the stand. US2016278515A1 relates to a desk assembly intended to provide a height-adjustable work surface.US7246784B1 relates to a spring-loaded shelf that is selectively positioned within an existing beverage cooler, having a platform that gradually rises vertically as beverages are removed therefrom, thereby avoiding the need for a user to reach deep within the confines of the cooler in order to retrieve a beverage.

[0041] US5197631 relates to a mechanism for automatically pushing upwards tissues stored in layers in a box.

[0042] The invention aims in particular to overcome the drawbacks of the prior art.

[0043] More specifically, the invention aims to propose a solution for automatically holding an object to be transported inside a package.

[0044] The invention also aims to provide such a solution which is simple to implement and does not require any particular handling by a user.

[0045] The invention also aims to provide such a solution that is sustainable over time.

[0046] These objectives, as well as others which will appear subsequently, are achieved thanks to the invention which relates to a reusable logistics transport package for the transport of an object comprising a box having a storage volume defined by a bottom and a peripheral rim substantially perpendicular to the bottom; a cover capable of occupying a position for closing the box in which the storage volume is closed, the cover being movable between an open position and a closed position and vice versa; a tray housed in the storage volume and movable relative to the bottom between a rest position in which it is located in the vicinity of the bottom and a position of use in which it is spaced from the bottom and holds the object against the cover; means for returning the tray to its position of use, the return means comprising: a crosspiece movable between a flattened position in which it is crushed between the tray and the bottom, and a deployed position in which it pushes the tray back relative to the bottom;a return member secured to the crosspiece and tending to position the crosspiece in its deployed position from its flattened position.;

[0047] The crosspiece and the return member allow the tray to be pushed back to its position of use automatically. The object positioned on the tray is then held between the lid and the tray when the lid closes the storage volume.

[0048] This means that the object can be transported without the risk of being damaged during transport by hitting the peripheral edge of the box when the latter is handled vigorously.

[0049] Furthermore, wedging the object in the box requires no effort from the user since it is the return device which ensures the blocking of the object between the tray and the cover, as soon as the cover is in its position closing the storage volume.

[0050] According to a first advantageous embodiment, the crosspiece comprises a first arm and a second arm articulated relative to each other, each arm comprising a first end connected to the tray and a second end movable along the bottom, and the return member is in the form of an elastic band connecting the second end of the first arm or the second end of the second arm to the body to bring the second end of the first arm closer to the second end of the second arm.

[0051] By the tension of the elastic, the tray is automatically positioned in its position of use.

[0052] By adjusting the tension of the elastic, it is therefore possible to control the force with which the object is pressed against the lid by the tray when the lid closes the storage volume.

[0053] Preferably, the connection between the elastic and the body is located directly above, or almost directly above, the first end of the arm to which the elastic is connected.

[0054] This encourages the first end to pull on the bottom to push the tray back into its use position.

[0055] According to a preferred embodiment, the package comprises two elastic bands each connected to an arm on the one hand and to the bottom of the box on the other hand.

[0056] The use of two elastic bands ensures synchronized movement of the two arms to push the tray back to its position of use.

[0057] This limits or even eliminates the risk of the tray buckling in the package.

[0058] The object to be transported is then correctly held in the storage volume between the tray and the cover.

[0059] According to a second advantageous embodiment, the crosspiece comprises a first arm and a second arm articulated relative to each other, each arm comprising a first end connected to the plate and a second end movable along the bottom, and in that the return member is in the form of an elastic connecting the second end of the first arm to the second end of the second arm to bring them closer to each other.

[0060] This allows in particular the tray and the return means to be removed from the package when they are not intended to be used or for storing the package.

[0061] Furthermore, access to recall means is facilitated, particularly for their maintenance.

[0062] According to a third advantageous embodiment, the crosspiece comprises a first arm and a second arm articulated relative to each other, and in that the return member is a torsion spring secured to the first arm and the second arm, the torsion spring tending to move the first arm apart relative to the second arm.

[0063] This allows in particular the tray and the return means to be removed from the package when they are not intended to be used or for storing the package.

[0064] Furthermore, access to recall means is facilitated, particularly for their maintenance.

[0065] In addition, a torsion spring can easily be adjusted as needed and can be embedded in the first and second arms, for example to protect them.

[0066] Preferably, the package includes two torsion springs.

[0067] The use of two carefully positioned torsion springs reduces the risk of the arms twisting when moving them.

[0068] Advantageously, the box includes grooves to guide the arms in translation relative to the bottom.

[0069] The first arm and the second arm can thus be guided during their movement to push the tray back to its position of use.

[0070] The buttressing of the arms is then avoided in favor of the good blocking of the object between the plate and the cover.

[0071] Preferably, the box is of the folding type.

[0072] When the package is not in use, the box can be folded up for easy storage and to limit the size of the package when not in use.

[0073] Other characteristics and advantages of the invention will appear more clearly on reading the following description of preferred embodiments of the invention, given as illustrative and non-limiting examples, and the appended drawings among which: [ Fig. 1 ] a perspective view of a package according to the invention, comprising a box inside which a tray is held in a position of use by return means; [ Fig. 2 ] is a perspective view of a package according to the invention, in which the tray is in a rest position; [ Fig. 3 ] is a schematic view illustrating the package in an unfolded configuration of the crate; [ Fig.4 ] is a schematic view illustrating the plate and the return means according to a first and a second embodiment, [ Fig. 5 ] is a schematic view illustrating the plate and the return means according to a third embodiment.

[0074] In reference to the figure 1 , a package 1 according to the invention comprises a box 2 defining a storage volume in which at least one object O to be transported is received, and a cover 3. The cover 3 is intended to close the storage volume of the box 2.

[0075] The box 2 has in particular a base 21 and a peripheral rim 22 comprising: a first panel 221; a second panel 222 opposite the first panel 221; a third panel 223; a fourth panel 224 opposite the third panel 223.

[0076] According to a preferred embodiment illustrated in the figures 1 à 3 , the cover 3 is integral with the peripheral edge 22 of the box 2. More precisely, the cover 3 is mounted hinged on the third panel 223.

[0077] In reference to the figure 3 , to hold the cover 3 when it closes the box 2, the cover may comprise a jamb 25 which forms a stand between the cover 3 and the bottom 21.

[0078] According to the present embodiments, the box is of the foldable type. Thus, each of the first panel 221, the second panel 222, the third panel 223 and the fourth panel 224 is mounted to move relative to the bottom 21, that is to say it can adopt: a storage position in which it extends substantially parallel to the bottom 21; and a use position in which it extends substantially perpendicular to the bottom 21.

[0079] In order to maintain the panels 221, 222, 223, 224 of the peripheral rim in their position of use, the body 2 comprises retaining means not illustrated in the figures.

[0080] The restraint means may in particular belong to the following groups: magnetic; attached organ; deformable; with bracing.

[0081] Package 1 can thus be positioned in a storage configuration or in a usage configuration.

[0082] In the storage configuration, the panels 221, 222, 223, 224 of the box 2 are in their storage position and the cover 3 is coplanar with one of the panels 2221, 222, 223, 224 of the box 2.

[0083] More particularly, the second panel 222 and the fourth panel 224 are positioned covering the bottom 21, and the first panel 221 and the third panel 223 are positioned in the extension of the bottom 21.

[0084] In other words, the first panel 221 and the third panel 223 are coplanar with the background 21 and the second panel 222 and the fourth panel 224 are above the background 21.

[0085] The cover 3 is then folded to cover the third panel 223 and the base 21. More precisely, the cover 3 covers the base 21 as well as the second panel 222 and the fourth panel 224.

[0086] The box 2 also includes a tray 26 on which the object O to be transported is placed, as illustrated in the figure 1 .

[0087] The plate 26 is movable in translation relative to the bottom 21 between two positions, namely: a rest position, in which the tray 26 is located in the vicinity of the bottom 21 of the box 2; a use position in which it is spaced from the bottom 21 of the box 2 and holds the object O against the cover 3 as explained below.

[0088] The tray 26 has an upper surface intended to be opposite the cover 3 when the latter closes the storage volume.

[0089] This upper surface advantageously carries a non-slip coating and / or a flexible material promoting the retention of an object on the plate 26.

[0090] The non-slip coating may be an additional layer of material applied to the plate 26.

[0091] In this case, the additional material may include roughness and / or an adhesive coating such as glue.

[0092] Of course, in the case where an adhesive coating is used, the latter is selected so as to be compatible with the reusable nature of package 1.

[0093] In other words, the adhesive coating must be capable of improving the retention of an object O to be transported in the package 1, while having the capacity to separate from the object O to be transported when a user wishes to extract it from the package 1.

[0094] The additional material may in particular be leather or a synthetic material which has characteristics which enable it to adhere to the objects O to be transported contained in the box 2.

[0095] However, in order to maintain the reusable nature of the package 1, it is essential that the additional layer of material does not allow the retention of dirt such as dust, sand or other elements which would prevent the adhesion of the object O to be transported to the rigid element 26, i.e. the tray.

[0096] In the case of a flexible material, foam can be used. This foam must be able to deform to best fit the contours of the object O to be transported.

[0097] To allow its mobility and the maintenance of the object O against the cover 3, the plate 26 is moved by return means 27.

[0098] The return means 27 include in particular a return member 271.

[0099] The recall body 271 can then adopt: a constrained configuration in which it exerts a first force of separation of the plate 26 relative to the bottom 21; a release configuration in which it exerts a second force of separation of the plate 26 relative to the bottom 21.

[0100] Preferably, the first spreading force being greater than the second spreading force.

[0101] Thus, the return member tends to recover its released configuration, and therefore to position the plate 26 in its position of use.

[0102] This tendency of the return member 271 to recover its released configuration thus makes it possible to press an object O to be transported against the cover 3.

[0103] According to the preferred embodiment illustrated by figures 1 to 4, the return means 27 also comprise a crosspiece 272 inserted between the plate 26 and the bottom 21 of the box 2.

[0104] The crosspiece 272 can adopt a flattened position in which it is crushed between the plate 26 and the bottom 21, and a deployed position in which it pushes the plate 26 relative to the bottom 21.

[0105] The crosspiece 272 comprises a first arm 273 and a second arm 274 articulated together in the shape of a cross.

[0106] More particularly, the first arm 273 and the second arm 274 are articulated around an axis 275.

[0107] The first arm 273 has a first end 2731 by which it is connected to the plate 26, and a second free end 2732.

[0108] Likewise, the second arm 274 has a first end 2741 by which it is connected to the plate 26, and a second free end 2742.

[0109] The first arm 273 and the second arm 274 are preferably mounted to rotate relative to the plate 26.

[0110] The return member 271 is then coupled to the crosspiece to modify an angle A between the two arms 273, 274 of the crosspiece 272.

[0111] More specifically, with reference to the figure 5 , an angle A is defined between the first arm 273 and the second arm 274, in the triangle formed between the first arm 273, the second arm 274 and the plate 26.

[0112] The passage of the return member 271 from its constrained position to its released position then causes a narrowing of the angle A, and therefore an elevation of the plate 26 relative to the bottom 21.

[0113] On the contrary, when a force is applied to the plate 26, then the angle A increases and the plate 26 lowers towards the bottom 21.

[0114] To facilitate the movement of the tray 26, the second end 2732 of the first arm 273 and the second end 2742 of the second arm 274 are mounted in grooves 28 made in the body 22.

[0115] More specifically, the grooves 28 are made in the first panel 221 and the third panel 223 of the peripheral rim 22.

[0116] According to a first and a second embodiment, illustrated in the figure 4 , the return member 271 takes the form of an elastic band 277.

[0117] According to the first embodiment, the elastic 277 is connected, on the one hand to the second end 2732 of the first arm 273 or to the second end 2742 of the second arm 274 and, on the other hand, to the body 2.

[0118] More precisely, the elastic 277 is connected, at each of its ends, to the second end 2732 of the first arm 273 or to the second end 2742 of the second arm 274.

[0119] The connection between the elastic 277 and the body 2 is ensured between the two ends of the elastic 277.

[0120] The connection of the elastic 277 to the body 2 can be made either on the peripheral edge 22 or on the bottom 21.

[0121] Advantageously, the return means 27 comprise two elastics 277, namely a first elastic 277a and a second elastic 277b.

[0122] In this case : the first elastic 277a is then connected, on the one hand to the second end 2732 of the first arm 273 and, on the other hand, to the body 2; the second elastic 277b is then connected, on the one hand to the second end 2742 of the second arm 274 and, on the other hand, to the body 2.

[0123] According to the second embodiment, the return member 27 comprises an elastic band 277c connecting the first arm 273 and the second arm 274 to each other.

[0124] More specifically, the elastic 277c is connected to the second end 2732 of the first arm 273 and to the second end 2742 of the second arm 274.

[0125] According to an advantageous embodiment, not illustrated in the figures, the package 1 can comprise several elastic bands 277c joining the second end 2732 of the first arm 273 and the second end 2742 of the second arm 274.

[0126] According to a third embodiment illustrated on the figure 5 , the return member 271 is in the form of a torsion spring 276.

[0127] The torsion spring 276 is integral with the first arm 273 and the second arm 274 and tends to move the first arm 273 away from the second arm 274, i.e. to reduce the angle A.

[0128] More specifically, the torsion spring 276 is mounted around the axis 275 and comprises a first branch 276a connected to the first arm 273, and a second branch 276b connected to the second arm 274.

[0129] Preferably, the return means comprise two torsion springs 276 mounted around the axis 275.

[0130] When the crosspiece 272 is in its flattened position, each torsion spring 276 is then stressed and its two branches 276a, 276b are then brought closer to each other.

[0131] By moving to its release configuration, each torsion spring 276 makes it possible to position the crosspiece 272 in its deployed position by moving the first branch 276a away from the second branch 276b.

[0132] A distance D between the second end 2732 of the first branch 273 and the second end 2742 of the second branch 274 is then narrowed when the crosspiece 272 passes from its flattened position to its deployed position.

[0133] The second and third embodiments make it possible to completely extract the tray 26 and the return means 27 from the package 1 when they are not in use since the return means 27 do not join the box 2.

[0134] When the crosspiece 272 is in its flattened position, each elastic band 277 is then constrained and stretched between the body 2 and the arm 273, 274 to which it is connected or between the first arm 273 and the second arm 274.

[0135] By moving to its release configuration, each elastic band 277 makes it possible to position the crosspiece 272 in its deployed position by pulling the second end 2732, 3742 of each arm 273, 274 towards each other.

[0136] The distance D between the second end 2732 of the first arm 273 and the second end 2742 of the second arm 274 is then narrowed when the crosspiece 272 moves from its flattened position to its deployed position.

[0137] To enable the safe transport of an object O, a package 1 according to the invention can be used.

[0138] To do this, the body 2 is shaped by positioning the panels 221, 222, 223, 224 in their position of use.

[0139] In other words, the peripheral rim 22 is shaped.

[0140] Object O is then inserted into box 2 and positioned on tray 26.

[0141] When the object O is correctly positioned, the cover 3 can be positioned on the peripheral rim 22 to close the storage volume.

[0142] The return member 271 of the return means 27 then causes the crosspiece 272 to be placed in the deployed position.

[0143] This then allows the object O to be kept blocked between the cover 3 and the plate 26.

[0144] Thus, if during its transport the package 1 is jostled, then the object O remains held between the tray 26 and the cover 3 in complete safety.

[0145] Package 1 thus closed can then be transported via a standard distribution network.

[0146] Advantageously, the package 1, in particular its box 2 and its cover 3, can in particular be made from extruded polypropylene, such as that marketed under the trade names Akylux, Akyplein and Akyboard (registered trademarks) of the manufacturer DS SMITH (registered trademark), or from expanded polypropylene, i.e. in the form of foam, such as sold by the company Storopack (registered trademark).

[0147] Package 1 which has just been described thus makes it possible to transport an object O in complete safety, even if the package is jostled during its transport between two destinations.

[0148] In fact, the return means 27 make it possible to position the tray 26 in its position of use and thus to block the object O from moving in the storage volume, between the cover 3 and the tray 26.

[0149] Furthermore, in the case of the first embodiment illustrated in the figure 4, the return means 27 and the tray 26 form a removable assembly which can be extracted when the object O to be transported is large enough to be held in position only between the cover 3 and the bottom 21 of the box 2.

[0150] In addition, the guidance of the tray 26, thanks to the grooves 28 of the body 2, makes it possible to avoid buckling of the tray 26 when it is moved from its rest position to its use position.

[0151] This allows for the long-term use of package 1.

Claims

1. A reusable logistical transport package (1) for transporting an object (O) comprising: - a box (2) having a stowage volume defined by a bottom (21) and a peripheral rim (22) substantially perpendicular to the bottom (21); - a lid (3) able to occupy a position closing the box (2) in which the stowage volume is sealed, the lid being movable between an open position and a closed position and vice versa; - a tray (26) housed in the stowage volume and movable with respect to the bottom (21) between a rest position in which it is located in proximity to the bottom (21) and an operating position in which it is separated from the bottom (21) and holds the object (O) against the lid (3); - means for returning (27) the tray (26) to its operating position, in which the package is of the foldable type and in which the return means (27) comprise: - a cross-brace (272) movable between a flattened position in which it is crushed between the tray (26) and the bottom (21), and a deployed position in which it pushes back the tray (26) with respect to the bottom (21); - a return member (271) secured to the cross-brace (272) and tending to position the cross-brace (272) in its deployed position from its flattened position.

2. The package (1) according to claim 1, characterized in that the cross-brace (272) comprises a first arm (273) and a second arm (274) articulated with respect to one another, each arm (273, 274) comprising a first end (2731, 2741) connected to the tray (26) and a second end (2732, 2742) movable along the bottom (21), and in that the return member (271) appears in the form of an elastic (277) connecting the second end (2732) of the first arm (273) or the second end (2742) of the second arm (274) to the box (21) to move the second end (2732) of the first arm (273) closer to the second end (2742) of the second arm (274).

3. The package (1) according to the preceding claim, characterized in that the connection between the elastic (277) and the box (2) is located vertically, or practically so, above the first end (2731, 2741) of the arm (273, 274) to which the elastic (277) is connected.

4. The package (1) according to claim 2 or 3, characterized in that it comprises two elastics (277a, 277b) each connected to an arm (273, 274) on the one hand and to the bottom (21) of the box (2) on the other hand.

5. The package (1) according to claim 1, characterized in that the cross-brace (272) comprises a first arm (273) and a second arm (274) articulated with respect to one another, each arm (273, 274) comprising a first end (2731, 2741) connected to the tray (26) and a second end (2732, 2742) movable along the bottom (21), and in that the return member (271) appears in the form of an elastic (277c) connecting the second end (2732) of the first arm (273) to the second end (2742) of the second arm (274) to move them closer to one another.

6. The package (1) according to claim 1, characterized in that the cross-brace (272) comprises a first arm (273) and a second arm (274) articulated with respect to one another, and in that the return member (271) is a torsion spring (276) secured to the first arm (273) and to the second arm (274), the torsion spring (276) tending to separate the first arm (273) with respect to the second arm (274).

7. The package (1) according to the preceding claim, characterized in that it comprises two torsion springs (276).

8. The package (1) according to any one of claims 2 to 7, characterized in that the box (21) comprises grooves (28) for guiding the arms (273, 274) in translation with respect to the bottom (21).