Gridbox protection device and use of a gridbox protection device

The integration of a heat-resistant and soundproofing protective cover into lattice boxes addresses the issues of temperature and noise interference during the storage and transport of flammable goods, maintaining structural integrity and preventing fire spread.

EP4349725B1Active Publication Date: 2025-07-09KONIG RALPH
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Patent Information

Application Number
EP2023201121
Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-10-04
Filing Date
2023-10-02
Publication Date
2025-07-09
Estimated Expiration
2043-10-02

AI Technical Summary

Technical Problem

Existing lattice boxes lack effective protection against high temperatures and noise interference during the storage and transport of flammable goods, particularly electronic waste and electric batteries, while maintaining structural integrity and preventing fire spread.

Method used

A heat-resistant protective cover with foldable, fire-resistant and soundproofing panels is integrated into the lattice box, comprising a metal pallet cage with a heat-resistant protective cover that maintains structural integrity and reduces noise interference by using materials like high-strength amorphous silica fibers and pressed glass wool.

Benefits of technology

The solution effectively prevents the lattice box from reaching dangerous temperatures and reduces noise interference, ensuring the structural integrity of the box and preventing fire spread, making it suitable for storing and transporting flammable goods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a wire mesh box protective device (1) which, according to the invention, comprises a wire mesh box (2) and a heat-resistant protective blanket (3) that can be arranged or is arranged therein.
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Description

[0001] The invention relates to a lattice box protective device and a use of a lattice box protective device.

[0002] Gitterboxes are well known in the art. Gitterboxes are used to hold general cargo. Various standards exist for gitterboxes; for example, the UIC 435-3 and DIN 15155 standards apply to a so-called DB Gitterbox.

[0003] From WO 2017 / 028949 A1 a pallet container with a thin-walled rigid inner container made of plastic is known.

[0004] From EP 2 979 991 A1 a multilayer material is known which comprises a first heat-insulating layer.

[0005] From JP 2020 192512 A a method for storing waste batteries in a box-shaped, stackable container is known.

[0006] From DE 10 2012 019 676 A1 a battery transport container with a flexible shell that encloses an interior and has an opening is known.

[0007] The invention is based on the object of providing an improved lattice box protection device and an improved use of a lattice box protection device.

[0008] The object is achieved according to the invention with regard to the grid box protection device by a device according to claim 1. With regard to the use, the object is achieved by using a grid box protection device according to claim 8.

[0009] Advantageous embodiments of the invention are the subject of the subclaims.

[0010] The pallet cage protective device according to the invention comprises a pallet cage and a heat-resistant protective cover arranged or located therein. The pallet cage is typically made of metal, preferably steel. The pallet cage can optionally have a wooden floor. It is preferably a pallet cage of standard size, also referred to as a Euro pallet cage or industrial pallet cage. Such pallet cages have a half-folding longitudinal wall and a foldable lid.

[0011] The protective cover is preferably a fire-resistant protective lining with a heat resistance of over 1,300°C, particularly preferably of at least 1,500°C. If the heat-resistant protective cover is arranged in the wire mesh box, the wire mesh box is protected against heat generated inside the wire mesh box protective device, in particular by burning stored goods, in such a way that the static load-bearing capacity of the steel wire mesh box is maintained, even if the wire mesh box heats up due to heat development inside the wire mesh box protective device. It has surprisingly been found that even when very strong heat is developed inside the wire mesh box protective device, the wire mesh box heats up, but that the heat from the wire mesh box is released to the outside in such a way that the temperature of the wire mesh box does not reach 500°C, even when temperatures inside the wire mesh box protective device are significantly above 1.000°C for an extended period of time, i.e., longer than 30, 60, or 90 minutes. This maintains the strength of the steel from which the lattice box is made, so that the lattice box does not lose its load-bearing capacity.

[0012] Because the heat-resistant protective blanket is arranged in the wire mesh box of the wire mesh box protective device, it is easily possible to slow down or prevent the spread of a fire from stored goods within the wire mesh box protective device to stored goods in an adjacent wire mesh box or to stored goods in an adjacent wire mesh box protective device.

[0013] This makes the grid box protective device particularly suitable for the storage of flammable goods, in particular for the storage of goods that are difficult to extinguish and / or are prone to spontaneous combustion, such as the storage of electronic waste containing electric batteries or for the storage or transport of electric batteries themselves.

[0014] Because the heat-resistant protective blanket is not only sand-tight, but also so stable that, in the event of a fire, sand can be filled into the mesh box protective device with the protective blanket arranged inside it up to an upper edge without the mesh box protective device failing. This makes it possible to introduce burning electronic waste, particularly that containing electric batteries, by placing sand into the mesh box protective device containing burning electronic waste and / or burning electric batteries, so that the fire can be contained, i.e., extinguished or smothered with the sand. The sand can be introduced using a wheel loader, so that large quantities of sand can be introduced in a short time while ensuring good protection for the people involved, especially the wheel loader operators.

[0015] Because the pallet cage protective device includes a protective cover, unwanted noise from the transported goods is significantly reduced, which can be very disruptive with current technology. Such unwanted noise can originate, for example, from smoke detectors that begin to emit a continuous signal, i.e., an acoustic alarm, during storage and transport. Such unwanted noise can also be caused by alarms from electronic components that are part of the transported goods, which are intended to acoustically signal, for example, a nearly empty battery, dust buildup, excessive or insufficient humidity, a vibration, or a defect.

[0016] The protective cover can be detachably connected to the pallet cage. This makes it possible to retrofit conventional pallet cages with prefabricated protective covers, thus easily creating pallet cage protective devices.

[0017] According to the invention, the protective blanket is foldable, making it particularly flexible. This allows multiple protective blankets to be folded into a single position, allowing them to be transported in a very space-saving manner. Because the protective blanket is flexible, it can be easily inserted into a mesh box.

[0018] According to the invention, a shape of the protective cover corresponds to an inner contour of the mesh box such that the side walls of the mesh box can be completely covered or lined, i.e., covered, with the protective cover on the inside, and that the top of the mesh box floor can be completely covered or lined, i.e., covered, with the protective cover. This significantly reduces the risk of the protective cover tearing when goods are placed into the mesh box protective device.

[0019] According to the invention, the protective cover has side elements whose size and shape correspond to the size and shape of the side walls, and a floor element whose size and shape correspond to the size and shape of the pallet cage floor. This allows the protective cover to be easily customized for a specific pallet cage.

[0020] In this case, it is particularly preferred that at least one overlapping element is arranged on at least some side elements, which overlaps an adjacent side element when inserted. This creates a protective cover in a simple manner when inserted, which is closed, in particular, along its vertical edges, and which also reliably protects corresponding edges of the mesh box from the effects of heat if burning material is located in the mesh box protective device. Preferably, two overlapping elements are arranged on each of two opposite side elements; this gives the protective cover a symmetrical shape and makes it particularly easy to manufacture.

[0021] The invention provides for a fold-over element to be arranged on each of the side elements, wherein the fold-over elements, when inserted, are at least capable of folding over an upper edge of a corresponding side wall. This allows the protective sheet to be securely attached to the mesh box in a simple manner, without the need for separate fastening elements. Because the fold-over elements fold over an upper edge of a corresponding side wall when inserted, the protective sheet cannot fall into the mesh box.

[0022] According to the invention, at least one of the cover elements has a size that approximately corresponds to the size of the base element, i.e., it is preferably at least as large as the base element or slightly larger than the size of the base element. This allows burning goods located in the wire mesh box protective device to be easily covered by means of the enlarged cover element, which is placed over the burning goods. This makes it easy to prevent the burning goods from receiving oxygen, thereby extinguishing a fire and / or reducing, or at least slowing down, the spread of heat from the wire mesh box protective device in question to neighboring objects, thus reducing the potential for damage.In this design, the closed protective cover is largely airtight, so that the access of oxygen is largely restricted or even prevented.

[0023] The inventive grid box protection device provides that a fire-resistant soundproofing panel can be arranged or is arranged on each of the side elements, on the base element, and on the cover element, which has a size approximately corresponding to the size of the base element. The size of the fire-resistant soundproofing panel corresponds to the size of the corresponding side element, or to the size of the base element, and to the size of the cover element. Preferably, each soundproofing panel is firmly connected to the corresponding element of the protective cover. The combination of protective cover and soundproofing panels remains foldable and stackable, so that a larger number of these combinations can be stored in a space-saving manner, which is particularly advantageous for larger landfills and / or recycling centers.

[0024] Even in non-fire situations, the storage of electronic waste offers the advantage of significantly reducing unwanted noise from electronic waste, thus reducing disruption to employees at recycling centers. Dismantled smoke detectors or remote controls, which are common components of electronic waste, often produce loud beeping noises when the battery charge falls below a specified minimum. Such beeping noises are less noticeable or even completely inaudible when the electronic waste in question is stored in wire mesh crates equipped with a protective cover with soundproof panels.

[0025] The soundproofing panels are preferably made of pressed glass wool and each have a thickness of 40 mm to 100 mm, preferably 40 mm to 80 mm. This makes the combination of protective blanket and soundproofing panels largely stable and foldable only at the transitions between adjacent elements of the protective blanket, making the combination of protective blanket and soundproofing panels self-stabilizing. This makes it easy to line a cage with the combination of protective blanket and soundproofing panels, eliminating the need for the otherwise necessary initial manual fixation of the protective blanket during installation in the cage.

[0026] According to the invention, the protective blanket is designed to be two-layered at least in sections, with the soundproofing panels being arranged between the two layers of the protective blanket. Each soundproofing panel is preferably arranged in a pocket which is formed by the two-layer design of the protective blanket in the respective element of the protective blanket. This ensures that the fire protection effect is always particularly high because at least one layer of the protective blanket is arranged on the inside of the wire mesh box. According to a further embodiment of the invention, fastening elements are provided for fastening the protective blanket to the wire mesh box. According to a first alternative, the fastening elements can serve to directly fasten the protective blanket to the wire mesh box, with one fastening element connecting the protective blanket directly to the wire mesh box. A folding element is preferably connected to a side wall of the wire mesh box.Preferably, the fastening elements are arranged or can be arranged on an outer side of the mesh box; particularly preferably, the fastening element is arranged below the cover element. This provides good protection against heat exposure. According to a second alternative, adjacent cover elements are connected to one another by means of the fastening elements, whereby the protective cover can be securely positioned and secured in the mesh box without being directly connected to it by means of the fastening elements.

[0027] According to a further embodiment of the invention, the protective cover consists of a material that is heat-resistant up to 1,500°C. Preferably, the protective cover is formed from high-strength amorphous silica fibers or from E-glass or from ceramic fibers or from quartz glass fibers, wherein the quartz glass fibers are particularly preferably formed from pure silicate and coated with verniculite.

[0028] Another embodiment of the invention provides for the use of multiple protective covers in a cage, for example, two or three, thereby improving heat protection. The multiple protective covers are arranged in layers one above the other.

[0029] A further embodiment of the invention provides that the cage protection device has fire-resistant panels, which are preferably arranged on the inside of the protective cover. These panels can significantly reduce the risk of damage to the protective cover, especially when transporting sharp-edged cargo.

[0030] According to the invention, a use is made of an aforementioned grid box protective device, in which the protective cover is arranged in the grid box, for receiving combustible or burning material, in particular for receiving electronic waste and / or for receiving electric batteries.

[0031] Embodiments of the invention are explained in more detail below with reference to the drawings, in which: Figure 1 shows a lattice box according to the prior art, Figure 2 shows a protective cover for a lattice box protective device according to the invention in an unfolded state in a top view, Figure 3 shows this protective cover in a folded state in an isometric view, Figure 4 shows an lattice box protective device according to the invention in an isometric view, Figure 5 shows loose soundproofing panels for a lattice box protective device according to the invention in an unassembled state in a top view, Figure 6 shows these soundproofing panels in an assembled state in an isometric view and Figure 7 shows an associated exploded view.

[0032] Corresponding parts are provided with the same reference numerals in all figures.

[0033] Figure 1shows a prior art pallet cage 2 made of steel. The pallet cage 2 comprises a first side wall 2.1, a second side wall 2.2, a third side wall 2.3, a fourth side wall 2.4, and a lower pallet cage base 2.5. The first side wall 2.1 is partially foldable in a known manner, for which purpose an upper part of the first side wall 2.1 is attached to a lower part of the first side wall 2.1 by means of several hinges.

[0034] Figure 2shows a protective cover 3 for a pallet cage protective device 1 according to the invention. The protective cover 3 is in an unfolded state; folded edges are shown as dashed lines, and edges of the protective cover 3 are shown as solid lines. The protective cover 3 comprises a first side element 3.1, a second side element 3.2, a third side element 3.3, and a fourth side element 3.4, each arranged on one side of a rectangular base element 3.5. Each side element 3.1 to 3.4 also has a rectangular shape. An overlapping element 3.6 is arranged on each of the second side element 3.2 and the fourth side element 3.4 at two opposite edges. In total, the protective cover 3 thus has four overlapping elements 3.6. The overlapping elements 3.6 serve to overlap with a respective adjacent side element 3.1 or 3.3 in a folded state of the protective cover 3, which will be shown later.A rectangular folding element 3.7 is arranged at one edge of each side element 3.1 to 3.4, which is applied to the base element 3.5. Each folding element 3.7 serves to fold the protective cover 3 into a folded state, as shown later.

[0035] Figure 3 shows the protective cover 3 in a folded state; both the folding edges and the edges of the protective cover 3 are shown here as solid lines. The two overlapping elements 3.6, which are arranged on the second side element 3.2 and the fourth side element 3.4, are folded onto the outside of the first side element 3.1 and the third side element 3.3, partially overlapping these side elements 3.1 and 3.3. The cover elements 3.7 are each shown folded outwards.

[0036] Figure 4shows an inventive lattice box protection device 1 in an isometric view. The protective cover 3 is in the Figure 3described state into the wire mesh box 2. The four folding elements 3.7 can still be folded completely outwards and downwards around the side walls 2.1 to 2.4, so that the protective cover 3 is then securely fixed in the wire mesh box 2. It is possible to additionally fix the protective cover 3 by means of fastening elements 4. Because the heat-resistant protective cover 3 is arranged in the wire mesh box 2, the steel wire mesh box 2 is protected against heat that arises inside the wire mesh box protective device 1, in particular from burning stored goods, in such a way that the static load-bearing capacity of the wire mesh box 2 is maintained, even if the wire mesh box 2 heats up due to heat development inside the wire mesh box protective device 1.Even if very strong heat develops inside the wire mesh box protective device 1, the wire mesh box 2 will heat up, but the heat from the wire mesh box 2 is dissipated to the outside in such a way that the temperature of the wire mesh box 2 does not reach 500°C, even if temperatures of well over 1,000°C prevail inside the wire mesh box protective device 1 for an extended period of time. Because the heat-resistant protective blanket 3 is arranged in the wire mesh box 2 of the wire mesh box protective device 1, it is easily possible to prevent a fire from spreading from stored goods within the wire mesh box protective device 1 to stored goods in an adjacent wire mesh box 2 or to stored goods in an adjacent wire mesh box protective device 1.Thus, the grid box protective device 1 is particularly suitable for the storage of flammable or burning goods, in particular for the storage of goods that are difficult to extinguish, such as for the storage of electronic waste with electric batteries or for the storage of electric batteries themselves.

[0037] Figure 5 shows loose soundproofing panels 5.1 to 5.6 for a grid box protection device 1 according to the invention in an unassembled state in plan view; Figure 6 shows these soundproofing panels in assembled state in isometric view and Figure 7shows an associated exploded view. A first soundproofing panel 5.1 corresponds in shape, size and arrangement to the first side element 3.1 (not shown here). A second soundproofing panel 5.2 corresponds in shape, size and arrangement to the second side element 3.2 (not shown here). A third soundproofing panel 5.3 corresponds in shape, size and arrangement to the third side element 3.3 (not shown here). A fourth soundproofing panel 5.4 corresponds in shape, size and arrangement to the fourth side element 3.4 (not shown here). A bottom soundproofing panel 5.5 corresponds in shape, size and arrangement to the bottom element 3.5 (not shown here). An upper soundproofing panel 5.6 corresponds in shape, size and arrangement to the top cover element 3.7 (not shown here). Each of the soundproofing panels 5.1 to 5.6 is mounted on the outside of the corresponding element 3.1 to 3.5 or 3.7. The soundproofing panels 5.1 to 5.6 are made of pressed glass wool and each have a length, a width and a thickness of 50mm. The length and width of the upper soundproofing panel 5.6 are equal to the length and width of the bottom soundproofing panel 5.5; in the example shown, 1,200mm and 800mm respectively. The length and width of the first soundproofing panel 5.1 are equal to the length and width of the third soundproofing panel 5.3; in the example shown, 1,150mm and 700mm respectively. The length and width of the second soundproofing panel 5.2 are equal to the length and width of the fourth soundproofing panel 5.4; in the example shown, 750mm and 700mm respectively. To ensure that in the installed state as in . Figure 6As shown, the sound insulation panels 5.1 to 5.6 form a closed body, it is important that the difference between the lengths of the upper sound insulation panel 5.6 and the floor-side sound insulation panel 5.5 on the one hand, and the first sound insulation panel 5.1 and the third sound insulation panel 5.3 on the other hand, is equal to the thickness of the sound insulation panels 5.1 to 5.6 used. It is also important that the lengths of the second and fourth sound insulation panels 5.2 and 5.4 on the one hand are less than the width of the upper and floor-side sound insulation panels 5.6 and 5.5 by the amount of the panel thickness. All sound insulation panels 5.1 to 5.6 are as in Figure 5 shown in the unfolded state arranged offset from one another in such a way that, when connected to the protective cover 3 (not shown here), they form a closed body in the folded and installed state as in Figure 6 shown. LIST OF REFERENCE SYMBOLS

[0038] 1Gitterbox protective device 2Gitterbox 2.1First side wall, 2.2Second side wall 2.3Third side wall 2.4Fourth side wall 2.5Gitterbox floor 3Protective cover 3.1First side element 3.2Second side element 3.3Third side element 3.4Fourth side element 3.5Floor element 3.6Overlap element 3.7Fold-over element 4Fastening element 5.1First soundproofing panel 5.2Second soundproofing panel 5.3Third soundproofing panel 5.4Fourth soundproofing panel 5.5Floor-side soundproofing panel 5.6Upper soundproofing panel

Claims

1. Wire-mesh box protection device (1), comprising a wire-mesh box (2) and a heat-resistant protective liner (3) which is arrangeable or arranged therein, wherein the protective liner (3) is detachably connectable or connected to the wire-mesh box (2), wherein the protective liner (3) is foldable and wherein a shape of the protective liner (3) corresponds to an inner contour of the wire-mesh box (2) in such a way that side walls (2.1 to 2.4) and a floor (2.5) of the wire-mesh box (2), on the inner faces and on the top face respectively, are completely lined with the protective liner (3), characterized in that the protective liner (3) has side elements (3.1 to 3.4) and a floor element (3.5), the size and shape of which correspond to the size and the shape of the side walls (2.1 to 2.4) and the wire-mesh box floor (2.5) respectively, a fold-over element (3.7) is arranged on each of the side elements (3.1 to 3.4), wherein at least some of the fold-over elements (3.7), in an inserted state, each fold over an upper edge of a corresponding side wall (2.1 to 2.4), wherein at least one of the fold-over elements (3.7) has a size that corresponds approximately to the size of the floor element (3.5), a fire-resistant acoustic panel (5.1 to 5.6) is arrangeable or arranged on each of the side elements (3.1 to 3.4), on the floor element (3.5) and on the fold-over element (3.7), which has a size that corresponds approximately to the size of the floor element (3.5), the size of each of the acoustic panels corresponding to the size of the corresponding side element (3.1 to 3.4) and the floor element (3.5) and the fold-over element (3.7) respectively, and wherein the protective liner (3) is formed in two layers at least in sections, wherein the acoustic panels (5.1 to 5.6) are each arranged between the two layers of the protective liner (3).

2. Wire-mesh box protection device (1) according to Claim 1, characterized in that at least one overlap element (3.6) is arranged on each of at least some side elements (3.1 to 3.4), which overlap element, in an inserted state, overlaps an adjacent side element (3.1 to 3.4).

3. Wire-mesh box protection device (1) according to Claim 1 or 2, characterized in that the acoustic panels (5.1 to 5.6) are formed from pressed glass wool and have a thickness of 40 mm to 100 mm, preferably 40 mm to 80 mm, in each case.

4. Wire-mesh box protection device (1) according to any of the preceding claims, characterized in that fastening elements (4) are provided for fastening the protective liner (3) to the wire-mesh box (2).

5. Wire-mesh box protection device (1) according to any of the preceding claims, characterized in that the fastening elements (4) are arrangeable or arranged on an outer side of the wire-mesh box (2).

6. Wire-mesh box protection device (1) according to any of the preceding claims, characterized in that the fastening elements (4) are arrangeable or arranged on the fold-over elements (3.7).

7. Wire-mesh box protection device (1) according to any of the preceding claims, characterized in that the protective liner (3) consists of a material that is heat resistant up to 1500°C.

8. Use of a wire-mesh box protection device (1) according to any of the preceding claims, wherein the protective liner (3) is arranged in the wire-mesh box (2), for receiving combustible or burning material, in particular electronic waste and / or electric batteries.

9. Use according to Claim 8, wherein the protective liner (3) with acoustic panels (5.1 to 5.6) is arranged in the wire-mesh box (2), for receiving electronic waste with electric batteries for generating noise.

Citation Information

Patent Citations

  • Multilayer material, fire protection mat with said multilayer material and transport and storage container assembly comprising said fire protection mat.

    EP2979991A1