Flexible bulk storage system
A flexible fabric container with protective plates addresses the inefficiencies of rigid containers for broken glass, ensuring safe and space-efficient storage and transport.
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- SO BAG
- Filing Date
- 2024-04-10
- Publication Date
- 2026-04-24
AI Technical Summary
Rigid containers for broken glass require significant storage space when not in use, are costly to transport when empty, and pose safety risks due to glass piercing the fabric, leading to waste generation and operator hazards.
A flexible fabric container with integrated protective plates and foldable design, allowing safe storage and transport of sharp materials like broken glass, minimizing space usage and preventing fabric damage.
The flexible fabric container effectively protects against glass piercing, reduces storage space, and facilitates safe handling and disposal of broken glass, while being recyclable.
Smart Images
Figure 00000016_0000 
Figure 00000016_0001 
Figure 00000017_0000
Abstract
Description
Title of the invention: Flexible bulk storage device,
[0001] The present disclosure relates to a bulk storage device suitable for the transport of cutting and / or piercing, 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 cutting material, and in particular broken glass. technical field
[0003] The present disclosure falls within the field of large flexible bulk containers (FIBCs), which are large capacity flexible textile containers, typically equipped with closure and gripping devices, intended to receive bulk materials. Previous technique
[0004] This disclosure is more specifically concerned with the collection and transport of sharp materials, such as broken glass.
[0005] Containers typically used for collecting broken glass can be rigid, usually in the form of a crate. The drawback of such rigid containers is that they require a significant amount of storage space, even when not in use. Similarly, storage solutions using skips of varying capacities exist, but these take up a lot of space, require costly transport when empty, and are often located at the point of waste generation. Emptying them requires expensive, specialized equipment.
[0006] Large containers for flexible bulk materials, such as textiles, can still be used for collecting broken glass. Compared to rigid containers, IBCs have the advantage of being able to be stored flat, i.e., taking up less space than a crate.
[0007] However, IBCs have the following limitations for the transport of cutting materials: - Even when reinforced with fabric, these IBCs are often single-use, as the fabric of the IBC is quickly damaged by the sharp contact with broken glass: it is therefore a packaging solution that generates waste. - Even with reinforced fabric, and depending on the orientation of the broken glass and the internal pressure, it can happen that a piece of glass pierces the reinforced fabric of the FIBC, which can pose safety problems for the operators present. Summary
[0008] This disclosure improves the situation.
[0009] A bulk storage device suitable for transporting sharp materials, such as broken glass, is proposed, comprising a fabric container having, at least in an unfolded state, a bottom and four side walls, made of fabric, forming a material storage volume, the container having a top filling opening at the level of a mouth above the upper end of the side walls, and in which lateral 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 lateral 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 in the storage volume and the container's webbing.
[0010] The features described 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 can be foldable in a folded state, two of the opposite side walls of the container being foldable, each along a median axis extending vertically from the container, each of the protective plates belonging to the two foldable side walls having a median fold line extending vertically from the container, said fold lines allowing the side wall to fold when said median fold axes 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.
[0012] According to one embodiment, the bottom of the container comprises several hinged closing flaps, each comprising a ground sheet attached by an edge to the sheet of one of the side walls of the container, and a protective bottom plate covering the inner side of the ground sheet, said closing flaps configured to go from a closed state ensuring support of the material contained in the storage volume when the flaps are folded against each other, closing a discharge opening of the container, the flaps held by a locking device, and to an open state when the locking device is released for which the closing flaps deploy under the action of gravity, releasing the discharge opening, allowing the discharge 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 fabrics of the side walls, are folded against the respective side walls, said closing flaps folded and superimposed on the side walls, and in which the protective plates belonging to the two superimposed flaps 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 the said median fold axes belonging to the two opposite side walls are brought together.
[0014] According to one embodiment, the locking device may include several flexible loops configured in a locking position to bear against the flaps when they are in the closed state, maintaining the flaps in their position to support the contained material, the loops being crossed by a flexible link connecting the loops together, and wherein the locking device is configured to be unlocked by releasing the flexible link so as to cause the release of the loops and the deployment of the closing flaps under the action of gravity, releasing the discharge opening, allowing the discharge of the storage volume.
[0015] According to one embodiment, the side protection plates are attached to the side wall fabrics of the container by means of fasteners, such as rivets or bolts; where applicable, the flap protection plates are attached to the bottom fabrics by means of fasteners, such as rivets or bolts.
[0016] According to one embodiment, the storage device may include a tubular skirt extending the side wall panels, said tubular skirt being configured to be: - in a folded-up position around the side walls of the container when unfolded, freeing the top opening of the container, in particular to allow loading of the storage volume through the top opening, - in a closed position sealing 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 can be an extruded honeycomb plate having two parallel plates, namely an inner plate and an outer plate, and ribs, oriented along the direction of extrusion, each joining the inner surfaces of the two inner and outer plates, distributed along a direction transverse to the direction of extrusion.
[0018] According to one embodiment, the fold lines of the protective plates are formed on the alveolar plates which are oriented along 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 alveolar 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 include two or more handling loops 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 their grasping and the lifting of the container.
[0021] According to one embodiment, the container fabric(s), 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 also relates to a broken glass collection process comprising: - the supply of a bulk storage device as described in this disclosure, - the filling of the storage volume of the container in its unfolded state, through the top opening of the container, with broken glass, - transport of the storage device containing broken glass.
[0023] According to an embodiment of the second aspect, the emptying of the storage device containing broken glass, which is then lifted, is ensured 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 is also related to a use of the storage device according to the present disclosure for the transport storage of material containing liquids, such as fermentable material in which a sealed inner lining, in the form of a flexible bag, is added in the storage volume, covering the protective plates. Brief description of the drawings
[0025] Other features, details and advantages will become apparent from reading the detailed description below and from analyzing the accompanying drawings, in which: Fig. 1
[0026] [Fig. 1] is a perspective view of the bulk storage device in the unfolded state of the container, which comprises four side walls, each with a flexible fabric, the fabrics of the side walls sewn together in pairs by vertical connecting seams, a skirt of the container extending from the fabrics of the side walls on top, folded up around the side walls so as to free the upper opening of the container, the fabrics of the side walls attached respectively to protective plates, on the inner side of the fabrics, the plates configured to come into direct contact with the material contained in the storage volume of the container. Fig. the
[0027] [Fig. la] is a cross-sectional view of the storage device along a horizontal plane, illustrating four internal protective plates, attached 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 inner tray of the extruded plate, forming a hinge on the outer tray. Fig. 2
[0028] [Fig.2] shows a view of the storage device according to [Fig.1], after filling the storage volume through the top opening, in a skirt closure position, which is deployed in a container opening closure position. Fig. 3a
[0029] [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 container's discharge opening, [Fig.3a] illustrating by two arrows the first two of the closing flaps, opposite, moved towards the closed position, with a view to sealing said discharge opening. Fig. 3b
[0030] [Fig.3b] is a consecutive view of [Fig.3a] in which the first two opposing closing flaps are folded down against each other, closing said drainage opening, [Fig.3b] illustrating two other opposing closing flaps which are moved towards the closing position. Fig. 5
[0031] [Fig.3c] is a consecutive view of [Fig.3b], illustrating an intermediate position of the bottom closure. Fig. 6
[0032] [Fig.3d] is a consecutive view of [Fig.3c] in which the four closing flaps are in the closed position, the flaps pressed against each other, arrows illustrating the movement of loops of a locking device, covering the bottom. Fig. 3e
[0033] [Fig.3e] is a consecutive view of [Fig.3d], in which the adjoining loops of the various side walls are folded down against the closing flaps then in the closed position, the loops linked under tension by locking link passing through the loops. Fig. 4a
[0034] [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 closure of the discharge opening, and the retention of the material in the storage volume, the flaps blocked by a locking device including a flexible link. Fig. b
[0035] [Fig.4b] is a consecutive view of [Fig.4a], after release of the flexible link, the closing flaps releasing the drainage opening, causing the contained material to fall out. Fig. 5a
[0036] [Fig. 5a] is a cross-sectional view of the storage device when folded, comprising the folding down of the closing flaps from the outside, against the side walls of the container. Fig. 5b
[0037] [Fig.5b] is a consecutive view of [Fig.5a] for which the protective plates exhibiting fold lines belonging to the opposite side walls, as well as two superimposed flaps are folded when the median folding axes belonging to the two opposite side walls are brought together. Description of the implementation methods
[0038] This disclosure relates to a bulk storage device 1 suitable for transporting sharp and / or piercing, and / or abrasive materials, such as, for example, broken glass, metal waste such as metal fragments, or rubble. Of course, the bulk storage device is also suitable for less aggressive products.
[0039] The storage device 1 comprises a fabric container 2 including, at least in an unfolded state ED, a base F, side walls, in particular four side walls C1, C2, C3, C4, made of fabric, forming a storage volume V of material. The container 2 thus forms a substantially parallelepiped-shaped storage volume.
[0040] The container has a top opening OS, for filling at the level of a top mouth, at the upper end of the side walls Cl, C2, C3, C4.
[0041] According to this disclosure, PP protective side panels are attached to the side wall panels on one of the inner sides of the panels. Preferably, one or more PP protective bottom panels are attached to the bottom panel(s) F on the inner side of the panels.
[0042] The PP protective walls, lateral and preferably bottom, 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, namely the fabrics of the side walls and preferably the bottom fabric(s).
[0043] This avoids contact between the cutting material and the fabrics of the side walls, and preferably contact between the cutting material and the fabric and the fabrics of the bottom.
[0044] The PP side protection plates can be attached to the side wall panels Cl, C2, C3, C4 of the container by means of OF fasteners, such as rivets or bolts. If applicable, the flap protection plates are attached to the bottom panels by means of OF fasteners, such as rivets or bolts; for example, four fasteners ensure retention between the panel and the protection plate at the four corners of the side wall or the closing flap.
[0045] Generally, each side wall Cl, C2, C3, C4 may comprise a rectangular fabric panel, the rectangular panels sewn together in pairs at the four corners of the container by vertical CL bonding seams. The PP protective plates belonging to the side walls are associated with the various fabric panels.
[0046] The internal, lateral PP protective plates respectively cover the surface of the side wall fabrics Cl, C2, C3, C4, protecting the fabrics from the potentially sharp contents. The PP protective plate(s) covering the bottom fabric(s) protect the fabric(s) from the potentially sharp contents.
[0047] According to one embodiment, the storage device 1 may include two or more BCL handling loops, 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 for their grasping and the lifting of the container. Each loop may include a textile strip that is sewn by one end along a vertical seam of one of the corners, and by a second end along a vertical seam of another adjacent corner.
[0048] According to one embodiment, the canvas container is foldable in a folded state EP, with 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 vertically from the container. The other two side walls (for example, referenced C1, C3) may be non-foldable. The base plates attached to the same sides as the foldable side plates may also be foldable, and in particular as explained below.
[0049] Each of the PP protective plates belonging to the two foldable side walls has a median fold line LP extending along the height of the container.
[0050] The folding lines allow the side wall to fold when said median folding axes AA belonging to two side walls are brought together, while prohibiting the side wall from folding in the other direction by blocking said folding line when the two articulated parts of the protective plate reach coplanar positions.
[0051] Each PP protective plate can be an extruded honeycomb plate having two parallel plates, namely an inner plate PI and an outer plate PE and ribs N, oriented along the direction of extrusion, the ribs joining each of the inner surfaces of the two inner and outer plates distributed along a direction transverse to the direction of extrusion.
[0052] The fold lines LP of the protective plates can be formed on the honeycomb plates, which are oriented along the extrusion direction according to the height of the container. Each fold line is obtained by a corresponding cut DC along a vertical line of the inner tray PI, over its entire height, forming a hinge on the outer tray PE of the honeycomb plate. The flexible hinge can be reinforced by adhesive tape bonded to the outer PE surface of the outer tray, along the hinge.
[0053] According to one embodiment, the bottom of the container may include a draining device allowing the contents to be emptied through a lower draining opening.
[0054] The emptying device may include several hinged VF closure flaps, each comprising a TF ground sheet attached by one edge to the sheet of one of the container's side walls, and a PP bottom protection plate covering the inner side of the ground sheet in the closed position. For example, the four side wall sheets may be extended along their lower edge by four ground sheets, respectively. Each TF ground sheet associated with one of the side walls may be smaller than or equal to the size of the side wall sheet. When the closure flaps are folded against the side wall, the overall dimensions of the closure flap do not extend beyond the perimeter of the side wall.
[0055] The closing flaps VF are configured to go from a closed state EF, which provides support for the material contained in the storage volume when the flaps are folded against each other, closing the discharge opening OV of the container, the closing flaps being held by a locking device DV, 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, releasing the discharge opening OV, allowing the discharge of the storage volume.
[0056] In the folded EP state, the closing flaps VF, respectively attached to the side wall panels, can be folded down against the respective side walls, said VF closing flaps being folded down and superimposed on the side walls Cl, C2, C3, C4, by pivoting the flaps around the lower edges of the side walls.
[0057] The PP protective plates belonging to the two superimposed flaps on the side walls equipped with folding protective plates, may also have fold lines LP, on 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 Cl; C3; C3; C4 folded against each other are configured to be folded simultaneously when the median folding axes AM belonging to the two opposite side walls are brought together.
[0058] According to one embodiment, the locking device DV may comprise several flexible loops PS configured in a locked position to bear against the closing flaps VF when they are closed, thus holding the closing flaps in their position to support the contained material. In the locked position, the loops are traversed by a flexible link LS connecting the loops together, supporting the closing flaps. The flexible link is typically tensioned, and two ends of the flexible link can be knotted to ensure locking.
[0059] The locking device DV can be unlocked by releasing the flexible link LS, typically by untying both ends of the flexible link, and so as to cause the release of the loops PS and cause the closing flaps VF to deploy under the action of gravity, releasing the discharge opening OV, allowing the storage volume to be emptied.
[0060] During deployment, the closing flaps, typically four in number, pivot at their connection with the side walls, folding vertically. The four closing flaps in the open position can form a conduit extending below the discharge opening OV, as illustrated for guidance in [Fig. 4b]. This conduit, protected by the PP protective plates, provides additional safety by guiding the contents as they fall, preventing the risk of projection.
[0061] According to one embodiment, a tubular skirt JP, typically made of canvas, can extend the canvases of the side walls Cl, C2, C3, C4, said tubular skirt configured to be: - in a folded-up position PR around the side walls of the container in the unfolded state, freeing the upper opening OS of the container, - in a closed position PF sealing said upper opening OS of the container, - or even folded inside the storage volume in the folded state of the canvas container.
[0062] According to one embodiment, the container's fabric(s), particularly those forming the side walls and / or 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 fastening elements may also be made of the same plastic material.
[0063] Optionally, the storage device (including all or part in particular the canvas or canvases and the side and / or bottom plates) can be obtained from recycled plastic.
[0064] According to one embodiment, the present disclosure relates to a method for collecting sharp material such as broken glass comprising: - a supply of a bulk storage device 1 according to this 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.
[0065] According to one embodiment of the method, the emptying of the storage device containing broken glass, typically lifted by the gripping loops, is ensured 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.
[0066] The footprint of the storage device, particularly in the folded or unfolded position, can be adapted to standard pallet sizes such as 80 x 120 cm; 100 x 120 cm, 114 x 114 cm.
[0067] For the transport and storage of cutting, abrasive, or piercing products, the bottom and side plates 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 canvas of the container.
[0068] For transporting less aggressive products that may 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 and side plates. The flexible bag contains the products while preventing leakage through the waterproof bag.
[0069] The present disclosure is further related 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...) in which an inner waterproof lining is added, in the form of a flexible bag in the storage volume, covering the protective plates. List of reference signs
[0070] - 1. Bulk storage device, - 2. Canvas container, - C1, C2, C3, C4. Lateral walls, in particular first, second, third and fourth, - F. Fond, - ED. Unfolded state, - EP. Folded state, - OS. Top opening (filling) - PP. Protective plates, - AM. Median axis (for folding the protective plates), - LP. Fold line (protective plate) - PE, PI. Respectively outer tray and inner tray (protective plates), - Ribs (protective plates), - OV. Drain opening (drain), - VF. Closing shutters, - EF. Closed state (the closing flaps close the drain opening), - EO. Open state (closing flaps releasing the drain opening), - DV. Locking device, - PS. Passersby (Locking device), - LS. Flexible link (Locking device), - JP.Jupe, - PR. Upward position (of the skirt freeing the upper opening of the container), - PF. Closing position (of the skirt closing the upper opening of the container).
Claims
Demands
1. A bulk storage device (1) suitable for transporting sharp and / or abrasive and / or piercing materials, such as, for example, broken glass, comprising a fabric container (2) having, at least in an unfolded state (ED), 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 filling opening (OS) at a mouth higher than the upper end of the side walls (C1, C2, C3, C4), and wherein lateral protective plates (PP) are integral with the fabrics of the side walls on an inner side of the fabrics, and wherein one or more bottom protective plates (PP) are integral with the bottom fabric(s) (F) on the inner side of the fabrics, and wherein 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 in the storage volume and the container's webbing.
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 vertically from the container, each of the protective plates (PP) belonging to the two foldable side walls having a median fold line (LP) extending vertically from the container, said fold lines permitting the folding of the side wall when said median fold axes (AA) belonging to two side walls are brought together, while prohibiting the folding of the side wall in the other direction by blocking said fold line when the two hinged parts of the protective plate reach coplanar positions.
3. A bulk storage device according to claim 1 or 2, wherein the bottom of the container comprises several hinged closing flaps (VF), each comprising a bottom panel (TF) attached by one edge to the panel of one of the side walls of the container, and a bottom protective plate (PP) covering the inner side of the bottom panel, said closing flaps configured to transition from a closed state (EF) providing support for the material contained in the storage volume when the flaps are folded against each other, closing a discharge opening (OV) of the container, the flaps held by a locking device (DV), and until open state (EO) when the locking device is released for which the closing flaps (VF) deploy under the action of gravity, releasing the discharge 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 wherein in the folded state (EP), the closing flaps (VF), respectively adjoining the side wall panels, are folded against the respective side walls, said closing flaps (VF) folded and superimposed on the side walls (Cl, C2, C3, C4), and wherein 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 such that the two superimposed protective plates (PP) belonging respectively to the closing flap (VF) and to the side wall (Cl; C3; C3; C4) are configured to be folded simultaneously when said median fold axes (AM) belonging to the two opposite side walls are brought together.
5. Device according to claim 3 or 4, wherein the locking device (DV) comprises several flexible loops (PS) configured in their locking position to bear against the flaps when they are in the closed state, maintaining the flaps in their position to support the contained material, the loops being traversed by a flexible link (LS) connecting the loops together, and wherein the locking device (DV) is configured to be unlocked by releasing 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, releasing the discharge opening (OV), allowing the discharge of the storage volume.
6. A bulk storage device according to any one of claims 1 to 5, wherein the side protective plates (PP) are attached to the side wall panels (C1, C2, C3, C4) of the container by fastening elements (OF), such as rivets or bolts, where applicable, when the device is according to claims 3 or 4, the plates The protective shutters are attached to the bottom canvases by fastening devices (OF), such as rivets or bolts.
7. Bulk storage device according to any one of claims 1 to 6, wherein a tubular skirt (JP) extends the side wall fabrics (Cl, 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 freeing 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 any one of claims 1 to 7, wherein each protective plate (PP) is an extruded honeycomb plate having two parallel trays, namely an inner tray (PI) and an outer tray (PE) and ribs (N), oriented along the direction of extrusion, each joining the inner surfaces of the two inner and outer trays, distributed along 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 along 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 tray (PI), over its entire height, forming a hinge on the outer tray (PE) of the honeycomb plate.
10. Bulk storage device according to any one of claims 1 to 9, wherein each side wall (Cl, 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 any one of claims 1 to 10, comprising two handling loops (BCLs) 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 permit their grasping and the lifting of the container.
12. Bulk storage device according to any one of claims 1 to 11, wherein the container canvas or canvases, on the one hand, and the protective plates, on the other hand, are made of the same plastic material, such as polypropylene.
13. A method for collecting broken glass comprising: - providing a storage device (1) for bulk according to any 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. A method for collecting broken glass according to claim 13, implementing a storage device according to any one of claims 3 to 5, wherein the emptying of the storage device containing broken glass is ensured 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 any one of claims 1 to 12 for the transport storage of material containing liquids, such as fermentable material in which a sealed inner lining, in the form of a flexible bag, is added in the storage volume, covering the protective plates.