Flexible bulk storage device

Abstract

This disclosure relates to a bulk storage device (1) suitable for the transport of sharp material, such as broken glass, comprising a fabric container (2) having a bottom (F) and four side walls (C1, C2, C3, C4) of fabric, forming a storage volume (V) of material, the container having a top opening (OS) for filling at the level of a top mouth and in which lateral protective plates (PP) are integral with the fabrics of the side walls, on an inner side of the fabrics and in which one or more bottom protective plates (PP) are integral with the bottom fabric(s) (F) on the inner side of the fabrics. Said lateral and bottom protective plates (PP) are configured to be in direct contact with the material contained in the storage volume while avoiding contact between the material contained in the storage volume and the fabrics of the container.

Description

[0001] The present disclosure relates to a bulk storage device suitable for the transport of cutting and / or perforating, and / or abrasive material, and comprising a flexible container, based on fabrics.

[0002] The present disclosure finds particular application for the storage and transport of sharp material, and in particular broken glass. Domaine technique

[0003] This disclosure relates to the field of flexible intermediate bulk containers (FIBCs) which are large capacity flexible textile containers, typically equipped with closing and gripping devices, intended to receive materials in bulk. Technique antérieure

[0004] This disclosure is particularly concerned with the collection and transportation of sharp materials, such as broken glass.

[0005] Containers traditionally used for the collection of broken glass can be rigid, typically in the form of a box. The disadvantage of such rigid containers is that they require a large storage volume, even when not in use. Similarly, storage solutions comprising skips of varying capacities exist, but take up a lot of space, require costly empty transport, and are often positioned at the waste production sites. Emptying them requires expensive special equipment.

[0006] Large, flexible, textile bulk containers can still be used for the collection of broken glass. Compared to rigid containers, FIBCs have the advantage of being able to be stored folded, i.e., taking up less space than a crate.

[0007] However, FIBCs have the following limitations for the transport of sharp materials: Even when made of reinforced fabric, these FIBCs are often single-use, the FIBC fabrics being quickly damaged by sharp contact with broken glass: this is then a packaging solution generating waste. Even when made of reinforced fabric, and depending on the orientation of the broken glass and the internal pressure, it may happen that a glass pierces the reinforced fabric of the FIBC, which can pose safety problems for the operators present. Résumé

[0008] This disclosure improves the situation.

[0009] A bulk storage device suitable for transporting sharp material, such as for example broken glass, is proposed, comprising a fabric container comprising, at least in an unfolded state, a bottom, and four side walls, made of fabrics, forming a material storage volume, the container having an upper filling opening at an upper mouth at the upper end of the side walls, and in which side protective plates are integral with the fabrics of the side walls, on an inner side of the fabrics and in which one or more bottom protective plates are integral with the bottom fabric(s) on the inner side of the fabrics, and in which said side and bottom protective walls are configured to be in direct contact with the material contained in the storage volume while avoiding contact between the material contained in the storage volume and the fabrics of the container.

[0010] The features set out in the following paragraphs may, optionally, be implemented independently of each other or in combination with each other.

[0011] According to one embodiment, the canvas container may be foldable in a folded state, two of the opposite side walls of the container being foldable, each along a median axis extending along the height of the container, each of the protective plates belonging to the two foldable side walls having a median fold line extending along the height of the container, said fold lines allowing the side wall to be folded when said median fold axes belonging to two side walls are brought together, while preventing the side wall from being folded in the other direction by blocking said fold line when the two articulated parts of the protective plate reach coplanar positions.

[0012] According to one embodiment, the bottom of the container comprises several folding closing flaps, each comprising a bottom canvas adjoining by one edge to the canvas of one of the side walls of the container, and a protective bottom plate covering the inner side of the bottom canvas, said closing flaps configured to pass from a closed state ensuring support of the material contained in the storage volume when the flaps are folded against each other, by closing an emptying opening of the container, the flaps held by a locking device, and up to an open state when the locking device is released for which the closing flaps deploy under the action of gravity, by releasing the emptying opening, allowing the emptying of the storage volume.

[0013] According to one embodiment, the device is foldable in a folded state and in which in the folded state, the closing flaps, respectively adjoining the canvases of the side walls are folded down against the respective side walls, said closing flaps folded down and superimposed on the side walls, and in which the protective plates belonging to the two flaps superimposed on the side walls equipped with foldable protective plates, also having fold lines, on the height of the protective plates of the flaps, and so the two superimposed protective plates belonging respectively to the closing flap and to the side wall; are configured to be folded simultaneously when said median folding axes belonging to the two opposite side walls are brought together.

[0014] According to one embodiment, the locking device may comprise several flexible loops configured in a locking position to come to bear under the flaps then in the closed state while maintaining the flaps in their position of support for the contained material, the loops crossed by a flexible link connecting the loops together, and in which the locking device is configured to be unlocked by a release of the flexible link so as to cause the release of the loops and the deployment of the closing flaps under the action of gravity, by releasing the emptying opening, allowing the emptying of the storage volume.

[0015] According to one embodiment, the side protection plates are secured to the canvases of the side walls of the container by fixing members, such as rivets or bolts, where appropriate, the protection plates of the shutters are secured to the canvases of the bottom, by fixing members, such as rivets or bolts.

[0016] According to one embodiment, the storage device may comprise a tubular skirt which extends the canvases of the side walls, said tubular skirt being configured to be: in a folded position around the side walls of the container in the unfolded state, releasing the upper opening of the container, in particular so as to allow the loading of the storage volume through the upper opening, in a closed position closing said upper opening of the container or even folded inside the storage volume in the folded state of the canvas container.

[0017] According to one embodiment, each protective plate may be an extruded honeycomb plate having two plates, parallel to each other, namely an inner plate and an outer plate and ribs, oriented in the direction of extrusion, each joining the inner surfaces of the two inner and outer plates, distributed in a direction transverse to the direction of extrusion.

[0018] According to one embodiment, the fold lines of the protective plates are formed on the honeycomb plates which are oriented in the direction of extrusion along the height of the container, each fold line obtained by a corresponding cut along a vertical line of the inner plate, over its entire height, forming a hinge on the outer plate of the honeycomb plate.

[0019] According to one embodiment, each side wall may comprise a rectangular canvas, the rectangular canvases sewn two by two, at the four corners of the container by vertical connecting seams.

[0020] According to one embodiment, the storage device may comprise two handling loops, or even more such as four handling loops, sewn to the canvas container, preferably at the four corners of the container, capable of being grouped in a position above the center of gravity of the container to allow them to be grasped and the container to be lifted.

[0021] According to one embodiment, the container canvas(es), on the one hand, and the protective plates, on the other hand, are made of the same plastic material, such as polypropylene.

[0022] According to a second aspect, the present disclosure further relates to a method of collecting broken glass comprising: a provision of a bulk storage device according to the present disclosure, a filling of the storage volume of the container in the unfolded state, through the upper opening of the container, with broken glass, a transport of the storage device containing broken glass.

[0023] According to an embodiment of the second aspect, the storage device containing broken glass is emptied while being lifted, by releasing the locking device, for which the closing flaps deploy under the action of gravity, allowing the broken glass to fall by gravity through the emptying opening.

[0024] According to a third aspect, the present disclosure also relates to a use of the storage device according to the present disclosure for the storage and transport of material containing liquids, such as fermentable material, in which a waterproof internal lining is added, in the form of a flexible bag, in the storage volume, covering the protective plates. Brève description des dessins

[0025] Other features, details and advantages will become apparent upon reading the detailed description below, and upon analyzing the attached drawings, in which: Fig. 1 [ Fig. 1 ] is a view of the bulk storage device, in perspective, in the unfolded state of the container which comprises four side walls, each comprising a flexible fabric, the fabrics of the side walls sewn two by two by vertical connecting seams, a skirt of the container extending the fabrics of the side walls on the top being in a rolled-up position around the side walls, so as to free the upper opening of the container, the fabrics of the side walls secured respectively to protective plates, on the internal side of the fabrics, the plates configured to come into direct contact with the material contained in the storage volume of the container. Fig. 1a [ Fig. 1a ] is a sectional view of the storage device along a horizontal plane, illustrating four internal protective plates, secured respectively to four canvases forming the side walls of the container, the protective plates being honeycomb plates, provided with a fold line, for two of the side walls of the container, the fold line obtained by cutting the internal plate of the extruded plate, forming a hinge on the external plate. Fig. 2 [ Fig. 2 ] shows a view of the storage device according to the figure 1 , after filling the storage volume through the upper opening, in a position for closing the skirt, which is deployed in a position for closing the opening of the container. Fig. 3a [ Fig. 3a ] is a view of the storage device, which is inverted, turned downwards relative to its normal position of use, illustrating four bottom closing flaps, in positions releasing the emptying opening of the container, the figure 3a illustrating by two arrows the first two of the closing flaps, opposite each other, moved towards the closing position, with a view to closing said emptying opening. Fig. 3b [ Fig.3b ] is a consecutive view of the figure 3a for which the first two closing flaps, opposite each other, are folded against each other, closing said emptying opening, the figure 3b illustrating two other of the closing flaps, opposite each other, which are moved towards the closing position. Fig. 5 [ Fig. 3c ] is a consecutive view of the figure 3b , illustrating an intermediate position of the bottom closure. Fig. 6 [ Fig. 3d ] is a consecutive view of the figure 3c for which the four closing flaps are in the closed position, the flaps pressed against each other, arrows illustrating the movement of the loops of a locking device, covering the bottom. Fig. 3e [ Fig. 3e ] is a consecutive view of the figure 3d , for which the adjoining loops of the different side walls are folded against the closing flaps then in the closed position, the loops linked under tension by a locking link crossing the loops. Fig. 4a [ Fig. 4a ] is a view of the storage device suspended from a lifting hook by two handling loops, the storage volume containing a material such as broken glass, the upper opening closed by the skirt, the closing flaps in the closed state ensuring the closing of the emptying opening, and the maintenance of the material in the storage volume, the flaps blocked by a locking device comprising a flexible link. Fig. b [ Fig. 4b ] is a consecutive view of the figure 4a , after releasing the flexible link, the closing flaps release the emptying opening, causing the contained material to fall. Fig. 5a [ Fig. 5a ] is a sectional view of the storage device, during folding, including the folding of the closing flaps from the outside, against the side walls of the container. Fig. 5b [ Fig. 5b ] is a consecutive view of the figure 5a for which the protective plates having fold lines belonging to the opposite side walls, as well as to two superimposed flaps are folded when the median folding axes belonging to the two opposite side walls are brought together. Description des modes de réalisation

[0026] The present disclosure relates to a bulk storage device 1 suitable for transporting cutting and / or perforating, and / or abrasive material, such as for example broken glass, metal waste such as pieces of metal, or rubble. Of course, the bulk storage device is suitable for less aggressive products.

[0027] The storage device 1 comprises a container 2 made of fabrics comprising, at least in an unfolded state ED, a base F, side walls, in particular four side walls C1, C2, C3, C4, made of fabrics, forming a storage volume V of material. The container 2 thus forms a substantially parallelepiped storage volume.

[0028] The container has an upper opening OS, for filling at an upper mouth, at the upper end of the side walls C1, C2, C3, C4.

[0029] According to the present disclosure, side PP protective plates are integral with the side wall fabrics, on an inner side of the fabrics. Preferably, one or more bottom PP protective plates are integral with the bottom fabric(s) F on the inner side of the fabrics.

[0030] The PP protective walls, side and preferably bottom, are configured to be in direct contact with the material contained in the storage volume, avoiding contact between the material contained in the storage volume and the container fabrics, namely the fabrics of the side walls and preferably the fabric(s) of the bottom.

[0031] This avoids contact between the cutting material and the side wall fabrics, and preferably contact between the cutting material and the fabric and the bottom fabrics.

[0032] The PP side protection plates can be secured to the side wall fabrics C1, C2, C3, C4 of the container by OF fixing devices, such as rivets or bolts. Where appropriate, the flap protection plates are secured to the bottom fabrics by OF fixing devices, such as rivets or bolts, for example four fixing devices ensure the hold between the fabric and the protection plate, at the four corners of the side wall, or the closing flap.

[0033] Generally, each side wall C1, C2, C3, C4 can comprise a rectangular canvas, the rectangular canvases sewn two by two, at the four corners of the container by vertical CL connection seams. The PP protective plates belonging to the side walls are associated with the different canvases.

[0034] The PP protective plates, side, internal, respectively cover the surface of the canvases of the side walls C1, C2, 3, C4 protecting the canvases from the attacks of the potentially sharp contents. The PP protective plate(s), covering the canvas(es) of the bottom, protect the canvas(es) from the attacks of the potentially sharp contents.

[0035] According to one embodiment, the storage device 1 may comprise two handling loops BCL, or even more such as four handling loops, sewn to the canvas container, preferably at the four corners of the container. The loops are configured to be grouped in a position above the center of gravity of the container to allow them to be grasped and the container to be lifted. Each loop may comprise a textile strip which is sewn by a first end along a vertical seam of one of the corners, and by a second end along a vertical seam of another adjacent one of the corners.

[0036] According to one embodiment, the canvas container is foldable in a folded state EP, two of the opposite side walls (for example referenced C2, C4) of the container being foldable. Each foldable wall is foldable along a median axis AM extending in height of the container. The other two side walls (for example referenced C1, C3) may be non-foldable. The bottom plates secured to the same sides as the foldable side plates may also be foldable, and in particular as explained below.

[0037] Each of the PP protective plates belonging to the two foldable side walls has a central LP fold line extending along the height of the container.

[0038] The folding lines allow the folding of the side wall when the said median folding axes AA belonging to two side walls come together, while preventing the folding of the side wall in the other direction by blocking the said folding line when the two articulated parts of the protective plate reach coplanar positions.

[0039] Each PP protective plate may be an extruded honeycomb plate having two plates, parallel to each other, namely an inner plate PI and an outer plate PE and ribs N, oriented in the direction of extrusion, the ribs each joining the inner surfaces of the two inner and outer plates distributed in a direction transverse to the direction of extrusion.

[0040] The fold lines LP of the protective plates can be formed on the honeycomb plates which are oriented in the direction of extrusion along the height of the container. Each fold line is obtained by a corresponding cut DC along a vertical line of the inner plate PI, over its entire height, forming a hinge on the outer plate PE of the honeycomb plate. The flexible hinge can be reinforced by an adhesive tape stuck on the external surface PE of the outer plate, along the hinge.

[0041] According to one embodiment, the bottom of the container may comprise an emptying device allowing the contents to be emptied through a lower emptying opening.

[0042] The emptying device may comprise several folding closure flaps VF, each comprising a bottom fabric TF adjoining by one edge to the fabric of one of the side walls of the container, and a bottom protective plate PP, covering the inner side of the bottom fabric, in a bottom closing position. For example, the four fabrics of the side walls may be extended by their lower edge, respectively by four bottom fabrics. Each bottom fabric TF associated with one of the side walls may be of a dimension less than or equal to the fabric of the side wall. When the closure flaps are folded against the side wall, the size of the closure flap does not exceed the perimeter of the side wall.

[0043] The closing flaps VF are configured to move from a closed state EF ensuring support for the material contained in the storage volume when the flaps are folded against each other, by closing the emptying opening OV of the container, the closing flaps held by a locking device DV, and up to an open state EO, when the locking device is released (in other words unlocked), for which the closing flaps VF deploy under the action of gravity, by releasing the emptying opening OV, allowing the emptying of the storage volume.

[0044] In the folded state EP, the closing flaps VF, respectively adjoining the side wall canvases, can be folded down against the respective side walls, said closing flaps VF being folded down and superimposed on the side walls C1, C2, C3, C4, by pivoting the flaps around the lower edges of the side walls.

[0045] The PP protective plates belonging to the two flaps superimposed on the side walls equipped with foldable protective plates, may also have fold lines LP, over the height of the PP protective plates of the flaps, and so that the two superimposed PP protective plates belonging respectively to the closing flap VF and to the side wall C1; C3; C3; C4 folded against each other are configured to be folded simultaneously when the said median folding axes AM belonging to the two opposite side walls come together.

[0046] According to one embodiment, the locking device DV may comprise several flexible loops PS, configured, in a locking position to come to bear under the closing flaps VF, then in the closed state, maintaining the closing flaps in their position of support for the contained material. In the locking position, the loops are crossed by a flexible link LS linking the loops together, supporting the closing flaps. The flexible link is typically put under tension and two ends of the flexible link can be knotted to ensure locking.

[0047] The locking device DV can be unlocked by releasing the flexible link LS, typically by untying the two ends of the flexible link, and so as to cause the release of the loops PS and cause the deployment of the closing flaps VF under the action of gravity, releasing the emptying opening OV, allowing the emptying of the storage volume.

[0048] When deployed, the closure flaps, typically four in number, pivot at their connection with the side walls, folding vertically. The four closure flaps in the open position may form a conduit which extends below the drain opening OV, and as illustrated for information purposes in figure 4b This conduit, protected by PP protective plates, provides additional safety by guiding the material contained as it falls, avoiding the risk of projection.

[0049] According to one embodiment, a tubular JP skirt, typically made of canvas, can extend the canvases of the side walls C1, C2, C3, C4, said tubular skirt configured to be: in a folded position PR around the side walls of the container in the unfolded state releasing the upper opening OS of the container, in a closed position PF closing said upper opening OS of the container, or even folded inside the storage volume in the folded state of the canvas container.

[0050] According to one embodiment, the canvas(es) of the container, in particular those forming the side walls and / or the bottom, or even the skirt, on the one hand, and the protective plates, on the other hand, may be made of the same plastic material, such as polypropylene. This facilitates the recycling of the storage device. The fixing members may also be made of the same plastic material.

[0051] Optionally, the storage device (including all or part of it, in particular the canvas(es) and the side and / or bottom plates) may be obtained from recycled plastic.

[0052] According to one embodiment, the present disclosure relates to a method of collecting sharp material such as broken glass comprising: a provision of a storage device 1 for bulk according to the present disclosure, a filling of the storage volume of the container in the unfolded state ED, through the upper opening OS of the container, with cutting material, in particular broken glass, a transport of the storage device containing the cutting material.

[0053] According to one embodiment of the method, the storage device containing broken glass is emptied, typically lifted by the gripping loops, by releasing the locking device DV, for which the closing flaps VF deploy under the action of gravity, allowing the broken glass to fall by gravity through the emptying opening OV.

[0054] The space requirement of the storage device, especially in the folded or unfolded position, can be adapted to standard pallet formats such as 80 x 120 cm; 100 x 120 cm, 114 × 114 cm.

[0055] For the transport and storage of sharp, abrasive, or perforating products, the base and side plates are configured to be in direct contact with the material contained in the storage volume, avoiding contact between the material contained in the storage volume and the container fabrics.

[0056] For the transport of less aggressive products, likely to contain liquids, such as fermentable products, the storage device can be equipped with a flexible bag forming an internal lining, made of waterproof plastic film, PE, or PP, covering the base plates and the side plates. The flexible bag allows the products to be contained by containing leaks through the waterproof bag.

[0057] The present disclosure also relates to the use of the storage device for the storage and transport of material containing liquids, such as fermentable material (for example biomass, pruning products, etc.) in which a waterproof internal lining is added, in the form of a flexible bag in the storage volume, covering the protective plates. Liste des signes de référence

[0058] 1. Bulk storage device, 2. Canvas container, C1, C2, C3, C4. Side walls, in particular first, second, third and fourth, F. Base, ED. Unfolded state, EP. Folded state, OS. Top opening (filling) PP. Protective plates, AM. Center line (folding of the protective plates), LP. Fold line (protective plate) PE, PI. Outer and inner tray respectively (protective plates), Ribs (protective plates), OV. Emptying opening (emptying), VF. Closing flaps, EF. Closed state (the closing flaps close the emptying opening), EO. Open state (the closing flaps release the emptying opening), DV. Locking device, PS. Loops (Locking device), LS. Flexible tie (Locking device), JP. Skirt, PR. Rolled up position (of the skirt releasing the upper opening of the container), PF. Closed position (of the skirt closing the upper opening of the container).

Claims

1. Storage device (1) for bulk materials suitable for transporting cutting and / or abrasive and / or perforating materials, such as for example broken glass, comprising a container (2) made of fabrics comprising, at least in an unfolded state (ED), a bottom (F), and four side walls (C1, C2, C3, C4), made of fabrics, forming a storage volume (V) of material, the container having an upper opening (OS), for filling at an upper mouth at the upper end of the side walls (C1, C2, C3, C4), and in which side protective plates (PP) are integral with the fabrics of the side walls, on an inner side of the fabrics and in which one or more bottom protective plates (PP) are integral with the bottom fabric(s) (F) on the inner side of the fabrics, and in which said side and bottom protective walls (PP),are configured to be in direct contact with the material contained in the storage volume, avoiding contact between the material contained in the storage volume and the container fabrics.

2. Bulk storage device according to claim 1 wherein the canvas container is foldable in a folded state (EP), two (C2, C4) of the opposite side walls of the container being foldable, each along a median axis (AM) extending along the height of the container, each of the protective plates (PP) belonging to the two foldable side walls has a median fold line (LP) extending along the height of the container, said fold lines allowing the side wall to fold when said median fold axes (AA) belonging to two side walls are brought together, while preventing the side wall from folding in the other direction by blocking said fold line when the two articulated parts of the protective plate reach coplanar positions.

3. Bulk storage device according to claim 1 or 2, wherein the bottom of the container comprises several closing flaps (VF), foldable, each comprising a bottom canvas (TF) adjoining by one edge to the canvas of one of the side walls of the container, and a bottom protective plate (PP), covering the inner side of the bottom canvas, said closing flaps configured to pass from a closed state (EF) ensuring support of the material contained in the storage volume when the flaps are folded against each other, by closing an emptying opening (OV) of the container, the flaps held by a locking device (DV), and up to an open state (EO) when the locking device is released for which the closing flaps (VF) deploy under the action of gravity, by releasing the emptying opening (OV), allowing the emptying of the storage volume.

4. Bulk storage device according to claims 2 and 3, foldable in a folded state (ED) and in which in the folded state (EP), the closing flaps (VF), respectively adjoining the canvases of the side walls are folded against the respective side walls, said closing flaps (VF) folded down and superimposed on the side walls (C1, C2, C3, C4), and in which the protective plates (PP) belonging to the two flaps superimposed on the side walls equipped with foldable protective plates, also having fold lines (LP), on the height of the protective plates (PP) of the flaps, and so that the two superimposed protective plates (PP) belonging respectively to the closing flap (VF) and to the side wall (C1; C3; C3; C4) are configured to be folded simultaneously when bringing together said median folding axes (AM) belonging to the two opposite side walls.

5. Device according to claim 3 or 4, in which the locking device (DV) comprises several flexible loops (PS), configured, in their locking position to come to bear under the flaps then in the closed state while maintaining the flaps in their position of support for the contained material, the loops crossed by a flexible link (LS) linking the loops together, and in which the locking device (DV) is configured to be unlocked by a release of the flexible link (LS) so as to cause the release of the loops (PS) and the deployment of the closing flaps (VF) under the action of gravity, by releasing the emptying opening (OV), authorizing the emptying of the storage volume.

6. Bulk storage device according to one of claims 1 to 5, in which the side protection plates (PP) are integral with the fabrics of the side walls (C1, C2, C3, C4) of the container by fixing members (OF), such as rivets or bolts, where appropriate, when the device is according to claims 3 or 4, the protection plates of the flaps are integral with the bottom fabrics, by fixing members (OF), such as rivets or bolts.

7. Bulk storage device according to one of claims 1 to 6, in which a tubular skirt (JP) extends the fabrics of the side walls (C1, C2, C3, C4), said tubular skirt being configured to be: - in a rolled-up position (PR) around the side walls of the container in the unfolded state releasing the upper opening (OS) of the container, - in a closed position (PF) closing said upper opening (OS) of the container, - or even folded inside the storage volume in the folded state of the fabric container when the storage device is according to claim 2.

8. Bulk storage device according to one of claims 1 to 7, in which each protective plate (PP) is an extruded honeycomb plate having two plates, parallel to each other, namely an inner plate (PI) and an outer plate (PE) and ribs (N), oriented in the direction of extrusion, each joining the inner surfaces of the two inner and outer plates, distributed in a direction transverse to the direction of extrusion.

9. Bulk storage device according to claim 2 or 4 and 8, wherein the fold lines (LP) of the protective plates are formed on the honeycomb plates which are oriented in the direction of extrusion along the height of the container, each fold line obtained by a corresponding cut (DC) along a vertical line of the inner plate (PI), over its entire height, forming a hinge on the outer plate (PE) of the honeycomb plate.

10. Bulk storage device according to one of claims 1 to 9, in which each side wall (C1, C2, C3, C4) comprises a rectangular canvas, the rectangular canvases sewn two by two, at the four corners of the container by vertical connecting seams (CL).

11. Bulk storage device according to one of claims 1 to 10, comprising two handling loops (BCL) sewn to the canvas container, preferably at the four corners of the container, capable of being grouped in a position above the center of gravity of the container to allow their gripping and lifting of the container.

12. Bulk storage device according to one of claims 1 to 11, in which the container canvas(es), on the one hand, and the protective plates, on the other hand, are made of the same plastic material, such as polypropylene.

13. Method for collecting broken glass comprising: - providing a storage device (1) for bulk according to one of claims 1 to 12, - filling the storage volume of the container in the unfolded state (ED), through the upper opening (OS) of the container, with broken glass - transporting the storage device containing broken glass.

14. Method for collecting broken glass according to claim 13, implementing a storage device according to one of claims 3 to 5, in which the storage device containing broken glass then lifted is emptied by releasing the locking device (DV), for which the closing flaps (VF) deploy under the action of gravity, allowing the broken glass to fall by gravity through the emptying opening (OV).

15. Use of the storage device according to one of claims 1 to 12 for the storage and transport of material containing liquids, such as fermentable material, in which a waterproof internal lining is added, in the form of a flexible bag, in the storage volume, covering the protective plates.

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