US20130193031A1 - Stackable pallet container - Google Patents
Stackable pallet container Download PDFInfo
- Publication number
- US20130193031A1 US20130193031A1 US13/753,563 US201313753563A US2013193031A1 US 20130193031 A1 US20130193031 A1 US 20130193031A1 US 201313753563 A US201313753563 A US 201313753563A US 2013193031 A1 US2013193031 A1 US 2013193031A1
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- Prior art keywords
- stackable
- pallet
- container defined
- jacket
- rods
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
- B65D77/0446—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks
- B65D77/0453—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks the inner container having a polygonal cross-section
- B65D77/0466—Articles or materials enclosed in two or more containers disposed one within another the inner and outer containers being rigid or semi-rigid and the outer container being of polygonal cross-section not formed by folding or erecting one or more blanks the inner container having a polygonal cross-section the containers being mounted on a pallet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/36—Pallets comprising a flexible load carrier extending between guide elements, e.g. guide tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/38—Details or accessories
Definitions
- the present invention relates to a stackable pallet container.
- a typical stackable pallet for transporting and/or storing fluent and/or pourable bulk material comprises a pallet, a plastic liner bag on the pallet, and a mesh outer jacket that surrounds the plastic liner bag and that is formed by horizontal rods and vertical lattice rods connected with one another at crossings and forming a lattice.
- the mesh outer jacket is provided with vertically extending reinforcements preferably formed by prefabricated U-section profiles that project inward toward the liner bag and are open toward the outside and that are attached to side walls formed by the mesh jacket.
- Such a pallet container generally has a rectangular footprint and serves for transporting and storing fluent and/or pourable bulk material.
- the plastic liner bag is generally produced by blow-molding. It can have a holding capacity of more than 500 liters, for example about 1000 liters. Depending on the density of the contained material, this results in a total load of a ton and more.
- the pallet container furthermore is generally stackable, i.e. the pallet of an upper pallet container sits on the upper edge of the mesh jacket of an underlying pallet container. Particularly in the filled state, the plastic liner bag supports itself on the mesh outer jacket, so that the mesh outer jacket is subjected to increasing stress with increasing load, which can lead to disruptive bulging.
- the filled pallet containers stand tightly against one another during transport and in the warehouse. In this case, bulging would be a problem.
- a stackable pallet container of the type described above is known from DE 100 02 610 where the horizontal lattice rods are formed into vertical and horizontally spaced reinforcement formations projecting inward toward the plastic container, and the reinforcement formations are aligned vertically to form outwardly open reinforcement grooves that receive on the outside respective vertical lattice rods, with other vertical lattice rods on the inside flanking each such groove.
- the plastic liner bag can be provided with corresponding molded parts into which the reinforcement grooves engage. With such reinforcement measures, it is possible to effectively prevent bulging of the container.
- pallet containers having liner bags and outer jackets where the outer jacket is formed by lattice tube frames, so that the vertical and horizontal lattice rods are formed by tubular rods, which are also welded to one another at crossings.
- tubular rods can have the most varied profiles.
- it has already been proposed to produce the vertical and/or horizontal tubular rods from open profiles having a trapezoid cross-section see for example U.S. Pat. No. 7,140,490).
- the known pallet containers have basically proven themselves in practice, but they are capable of being improved.
- Another object is the provision of such an improved pallet container for liquids or bulk material that overcomes the above-given disadvantages, in particular that is characterized by great stability and simple and cost-effective manufacture, without stackability of the pallet container being impaired.
- a stackable pallet container for transporting or storing fluent material has according to the invention a rigid pallet, a plastic liner bag sitting on the pallet, and a mesh outer jacket surrounding the plastic liner bag, secured to the pallet, and forming with the pallet an upwardly open cavity containing the liner bag.
- the jacket is formed by horizontal rods and vertical rods joined at crossings.
- At least partially U-section vertical reinforcement bars are fixed inside the outer jacket and each have an upper end formed on a side directed inward toward the bag with a cutout.
- the invention proceeds, first of all, from what is known from DE 195 03 043 A1, that bulging can be reliably prevented if the mesh outer jacket is made with vertically extending reinforcement grooves on its side surfaces, which grooves are not formed into the mesh jacket, but rather are produced as separate reinforcement profiles, in an embodiment as U-section profiles, and are welded to the actual lattice jacket and therefore to the lattice structure.
- This has the advantage that for one thing, great stability is achieved by the additional reinforcement profiles, but for another thing, production is simplified, because the mesh jacket itself can be produced from planar mesh mats, for example steel lattice mats, without reinforcement profiles having to be formed into these mats.
- the stability of the lattice jacket and therefore the stability of the entire pallet container can be improved by the U-section profiles.
- the stackability of the pallet container is not impaired. This is because it is basically practical if the reinforcement profiles extend over the entire height of the mesh jacket, so that they preferably extend all the way to the upper and lower end rods of the mesh jacket and can also be connected to these end rods, for example. Nevertheless, a further pallet can easily be set onto such a mesh jacket and consequently such a pallet container, so that the pallet containers can be stored and transported in a stack, partially nested.
- the cutouts according to the invention guarantee that the pallet positioned on the mesh jacket can essentially extend down into the mesh jacket underneath, so that secure positioning is guaranteed.
- the cutouts can be configured stepped, for example.
- the cutout of a reinforcement profile is formed by a recess that drops smoothly and continuously toward the liner bag.
- Such cutouts can be produced in simple manner, without the stability of the reinforcement profiles being overly impaired. Nevertheless, the cutouts create sufficient room for the upper pallet of the next pallet container to be set onto the mesh jacket.
- a cutout for example a cutout, preferably has a vertical height of 10 mm to 100 mm, preferably 20 mm to 60 mm, for example about 40 mm.
- the cutout can run at an angle of about 30° to 80°, for example about 40° to 70°, relative to the horizontal. In practice, for example, an angle of 50° to 60°, preferably about 55°, is used.
- the reinforcement profiles configured as U-section profiles are attached to the mesh jacket on the inside, for example welded to the horizontal lattice rods on the inside of the mesh outer jacket.
- the mesh outer jacket is formed from horizontal and vertical lattice rods, and the vertical lattice rods run on the inside, for example, and the horizontal lattice rods run on the outside, for example.
- the vertical lattice rods extend at least in part over the entire height of the mesh outer jacket.
- the horizontal lattice rods run over the entire circumference, as circumferential rods, and consequently over all four side walls of the container.
- An upper circumferential horizontal lattice rod and a lower circumferential horizontal lattice rod generally form the upper and the lower end of the lattice jacket, in each instance, where these upper and lower horizontal end rods can have an enlarged cross-section as compared with the other horizontal rods.
- simple steel lattice mats having solid lattice rods can be used for the production of the mesh jacket according to the invention, so that it is possible to do without the use of tubular rods, in particular.
- the horizontal and/or the vertical lattice rods preferably have a diameter of 4 mm to 8 mm, for example a diameter of 5 mm to 6 mm.
- the upper and lower end rods can have an enlarged diameter, in comparison, of 6 mm to 10, for example, about 8 mm, for example.
- the U-section profiles are preferably produced from metal, for example sheet metal having a thickness of more than 0.5 mm, for example 0.5 mm to 2 mm, preferably 0.5 mm to 1 mm, for example about 0.8 mm.
- the mesh outer jacket according to the invention having the groove-shaped reinforcement profiles, can basically be combined with known plastic liner bags.
- the groove-shaped reinforcement profiles are attached to the mesh jacket in such a manner that the U-section profiles are open toward the outside, so that the grooves project in the direction toward the plastic liner bag and preferably engage into groove-shaped molded-in parts of the plastic liner bag.
- they can also support themselves on a plastic liner bag having planar side surfaces.
- a mesh jacket can be used in which the horizontally running lattice rods are equidistant. It is practical that the U-section profiles are positioned between two adjacent vertical lattice rods. Preferably, however, a mesh jacket is used in which the vertical lattice rods are not equidistant.
- the mesh jacket can have first regions that lie next to one another, distributed over the circumference, in which regions the vertically extending lattice rods have a small spacing, and second regions in which the vertical lattice rods have a large spacing that is greater than the small spacing.
- the vertical U-section profiles according to the invention are between two vertical lattice rods in specific regions, so that in these regions, the vertical lattice rods have a greater spacing from one another.
- the large spacing amounts to at least twice the small spacing, preferably about three times this spacing a.
- the U-section profiles can have a total width that approximately corresponds to the small spacing between the vertical lattice rods.
- the U-section profiles can have a groove-shaped U-section part, on the one hand, and flat legs sections that extend out on both sides, on the other hand. While the U-section parts ensure reinforcement to a particularly degree, the flat leg sections serve—aside from an additional stability function—also for problem-free attachment of the profiles to the mesh jacket.
- the U-section parts can have a maximum or front width of 10 mm to 50 mm, for example about 20 to 40 mm.
- the flat attachment flanges can have a width of 5 mm to 30 mm, for example about 10 to 20 mm.
- the U-section profiles preferably have a total width of 30 mm to 100 mm, for example 40 mm to 80 mm, for example about 40 to 70 mm.
- the U-section profiles have a depth of 10 mm to 50 mm, for example, preferably 25 mm to 40 mm.
- the U-section profiles can be further improved if the U-section profiles, which are produced from sheet-metal strips by forming, for example, are provided at their edges with bends that are turned toward the inside. In this way, the stability is increased further and, in particular, the risk of injury when handling the pallet container is reduced.
- the U-section parts of the U-section profiles are preferably formed on two (planar) side sections and one bottom section that connects the side sections, so that these U-section parts have an essentially U-shaped basic shape, in total.
- the bottom sections can be configured either as arc-shaped sections or also as flat or planar sections.
- the U-section profiles for example their U-section parts, have pressed-in recesses distributed over the profile length, where these pressed-in recesses are formed into the sheet metal.
- these pressed-in recesses can be provided in the case of different profile shapes.
- the pallet container and therefore also the mesh outer jacket preferably have a rectangular base surface, so that the lattice jacket has four side walls.
- the liner bag is provided with at least one outlet connector or one outlet opening, on which a shut-off organ is disposed.
- the mesh outer jacket consequently has a front wall assigned to the outlet opening and an opposite back wall, as well as two side walls that connect the front wall and the back wall with one another.
- at least two vertically extending U-section profiles are attached to the front wall, to the back wall, and to the side walls of the mesh outer jacket, in each instance, so that in total, preferably at least eight U-section profiles are attached to the mesh outer jacket.
- U-section profiles are attached on the side walls, in each instance, than on the front wall and the back wall. Therefore it lies within the scope of the invention that two U-section profiles are attached to the front wall and/or the back wall, in each instance, while at least three, preferably four or more U-section profiles are attached to the side walls, in each instance.
- This configuration takes into account the fact that the shut-off organ is not supposed to be hindered by the reinforcement profiles, among other things.
- a mesh outer jacket for a stackable container of the type described is also an object of the invention.
- the mesh outer jacket according to the invention, with the U-section profiles attached to it, is consequently also placed under protection separately.
- FIG. 1 is a perspective view of a pallet container according to the invention
- FIG. 2 is a top view of the reinforcement jacket of the container
- FIGS. 3 and 4 are views taken respectively in the directions of arrows III and IV of FIG. 2 ;
- FIG. 5 is a perspective view of a reinforcement profile bar according to the invention.
- FIG. 6 is a large-scale view of the right end of the bar of FIG. 5 ;
- FIG. 7 is a large-scale end view of the bar
- FIG. 8 is a developed view of the lattice side wall without reinforcements
- FIG. 9 is a view like FIG. 8 , but with reinforcements
- FIG. 10 is a view like FIG. 5 of another reinforcement bar according to the invention.
- FIG. 11 is a large-scale end view of the FIG. 10 bar.
- a stackable pallet container for transporting and/or storing liquids or bulk material basically is comprised of a rigid rectangular pallet 1 normally lying in a horizontal plane, a generally parallepipedal plastic liner bag 2 that sits on the pallet 1 , and a mesh outer jacket 3 that surrounds the plastic liner bag and that forms four planar and vertical side walls connected at corners to have a rectangular shape as seen from above.
- FIG. 1 shows that the plastic liner bag 2 is provided with an outlet opening or connector having a valve 4 and an upper opening covered here by a large removable cap 5 .
- the mesh outer jacket 3 is made of horizontally running solid-steel lattice rods 6 and vertically extending solid-steel lattice rods 7 that are welded together at crossings 8 .
- a mesh outer jacket 3 is produced from a steel mat or mesh.
- the mesh outer jacket 3 is provided with vertically extending reinforcements on each of its side walls.
- these reinforcements are separate U-section profile bars 9 that are attached to the side walls formed by the mesh outer jacket 3 .
- FIGS. 5 to 7 show the mesh outer jacket with the reinforcement profiles attached to it.
- the U-section profiles 9 are inside the jacket 3 and welded to the horizontal rods 6 of the mesh outer jacket 3 by welds on the inside, the horizontal lattice rods 6 being on the outside and the vertical lattice rods on the inside of the jacket 3 .
- the U-section profiles 9 are attached to the mesh outer jacket 3 in such a manner that they project inward toward the liner bag 2 but are open outward.
- FIG. 1 shows how the plastic liner bag 2 itself is provided with groove-forming molded-in parts into which the U-section profiles 9 of the mesh outer jacket 3 engage.
- the mesh jacket 3 has first regions in which the vertical lattice rods 7 have a small horizontal spacing a and second regions in which the vertical lattice rods 7 have a second horizontal spacing b that is larger than the small spacing a.
- the large spacing b amounts to at least twice, namely about three times the small spacing a.
- the U-section profiles 9 have as shown in FIG. 7 a total width A that approximately corresponds to the small spacing a of the vertical lattice rods 6 .
- the U-section profiles 9 have a U-section center part 9 a and planar flanges 9 b projecting to each side in a common plane.
- the outer edges of flanges 9 b are bent over at 11 toward the inside, that is toward the side from which the U-section part 9 a projects.
- the U-section profiles 9 are each formed at an upper end with an upwardly open U-shaped cutout 12 whose edge lies in a plane extending at an acute angle to the plane of the flanges 9 b .
- the cutout 12 of each profile 9 is deepest at the apex 9 a ′′ of the U-section part 9 a and extends as mentioned in a plane along each of the legs 9 a ′ of this part 9 a .
- the purpose of these cutouts 12 is to guarantee that a second container can easily be fitted on top of and consequently stacked on the pallet container shown in FIG. 1 .
- the reinforcement profiled 9 with cutouts 12 allow particularly stable stacking of the containers while in no way impairing their strength.
- each profile 9 extends the full height of the jacket 3 , that is from the lowermost rod 6 a to the uppermost rod 6 b , to which they are also welded.
- the vertically extending U-section profiles 9 have a length L that corresponds to the height of the mesh jacket 3 , here about 1000 mm.
- the edge of each cutout 12 extends at an angle ⁇ of about 55° relative to the horizontal h.
- the total depth E of the cutout 12 amounts to about 40 mm in this embodiment.
- the U-section profiles 9 are produced from sheet steel having a thickness F of about 0.8 mm.
- the U-section profiles 9 have a total width A of about 70 mm in the embodiment according to FIGS. 1 to 9 , where the central U-section part 9 a has a front width B of about 40 mm and the two lateral flat sections 9 b each have a width C of about 20 mm.
- the bends 11 have a width G of about 4 mm.
- the depth D of these U-section profiles amounts to approximately 25 mm to 30 mm.
- FIG. 1 further shows upper connecting profile bars 13 ling atop the bag 2 and extending across the upper end of the jacket 3 .
- the pallet container has a rectangular footprint, as does the mesh outer jacket 3 .
- the mesh outer jacket 3 consequently forms a front side wall cut out at 6 c for the outlet connector 4 and an opposite back wall, as well as two side walls that connect the front and back walls with one another.
- the drawings show that two of the U-section profiles 9 are attached to the front wall, and that two of the U-section profiles 9 are also attached to the back wall. Four of the U-section profiles 9 are attached to each of the two side walls.
- the U-section profiles 9 on the front wall and on the back wall consequently have a greater spacing from one another than on the side walls. This takes the fact into account that the U-section profiles are not allowed to hinder handling of the shut-off organ.
- FIGS. 10 and 11 show an alternative embodiment of the U-section profile 9 .
- the basic structure and the basic method of functioning of the U-section profiles according to FIGS. 10 and 11 correspond to the structure and function of the U-section profile 9 shown in FIGS. 1 to 9 .
- the embodiment according to FIGS. 10 and 11 differs from the embodiment according to FIGS. 5 to 7 essentially in that the U-section part 9 a is formed, in the case of all the embodiments, by two planar sides or legs 9 a ′ and a planar apex 9 a ′′ that connects the legs 9 a ′.
- these apex 9 a ′′ is arcuate while the legs 9 a ′ are flat or planar.
- the angle ⁇ once again amounts to about 55°
- the total height E of the cutout 12 also amounts to 40 mm.
- the U-section profiles 9 have a smaller total width A of about 50 mm in the case of this embodiment, where the central U-section part 9 a has a front width B of about 20 mm to 25 mm, and the two lateral flat sections 9 b each have a width C of about 10 mm.
- the depth D of these U-section profiles amounts to approximately 25 mm to 30 mm.
- FIGS. 10 and 11 also show recesses 14 be formed in the kegs 9 a ′ of the U-section profile 9 .
- a plurality of such recesses 14 are provided along the length of the profile, serving to increase the rigidity of the U-section profile 9 .
- These pressed-in recesses 14 can be provided on both legs 9 a ′, specifically preferably equidistant over the entire length of the U-section profile, where the recesses 14 on one of the legs 9 a ′ are staggered relative to those on the other leg 9 a ′. This is not shown in the figures.
- Such recesses 14 can also be provided in the embodiments according to FIGS. 5 to 7 .
- FIGS. 8 and 9 show that, to start with, an “irregular” lattice structure is produced with the different regions having the different spacings a and b between the vertical rods 7 , in each of which regions the structure is basically uniform structure is formed, however, after attachment of the U-section profiles 9 . Nonetheless no opening is left that is greater than 100 cm 2 . This is the case in the regions with the small spacing a, and is also the case in the regions with the wide spacing b where the reinforcement bars 9 are provided, even though in the regions with the spacing b of the rods 7 the holes between the rods 6 and 7 would otherwise be greater than 100 cm 2 .
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Abstract
Description
- The present invention relates to a stackable pallet container.
- A typical stackable pallet for transporting and/or storing fluent and/or pourable bulk material comprises a pallet, a plastic liner bag on the pallet, and a mesh outer jacket that surrounds the plastic liner bag and that is formed by horizontal rods and vertical lattice rods connected with one another at crossings and forming a lattice. The mesh outer jacket is provided with vertically extending reinforcements preferably formed by prefabricated U-section profiles that project inward toward the liner bag and are open toward the outside and that are attached to side walls formed by the mesh jacket.
- Such a pallet container generally has a rectangular footprint and serves for transporting and storing fluent and/or pourable bulk material. The plastic liner bag is generally produced by blow-molding. It can have a holding capacity of more than 500 liters, for example about 1000 liters. Depending on the density of the contained material, this results in a total load of a ton and more. The pallet container furthermore is generally stackable, i.e. the pallet of an upper pallet container sits on the upper edge of the mesh jacket of an underlying pallet container. Particularly in the filled state, the plastic liner bag supports itself on the mesh outer jacket, so that the mesh outer jacket is subjected to increasing stress with increasing load, which can lead to disruptive bulging. On the other hand, the filled pallet containers stand tightly against one another during transport and in the warehouse. In this case, bulging would be a problem.
- For this reason, it has already been proposed to mount prefabricated reinforcement U-section profile bars that have attachment flanges at the ends of the U-legs on the regions of the side walls that are at risk of bulging. Such a stackable pallet container of the type described above is known from DE 195 03 043. The reinforcement profiles can be made of sheet steel and can be welded onto the round steel rods of the side walls. These reinforcement profiled extend vertically.
- Alternatively, it has been proposed to form vertically extending reinforcements in the mesh outer jacket. For example, a stackable pallet container of the type described above is known from DE 100 02 610 where the horizontal lattice rods are formed into vertical and horizontally spaced reinforcement formations projecting inward toward the plastic container, and the reinforcement formations are aligned vertically to form outwardly open reinforcement grooves that receive on the outside respective vertical lattice rods, with other vertical lattice rods on the inside flanking each such groove. The plastic liner bag can be provided with corresponding molded parts into which the reinforcement grooves engage. With such reinforcement measures, it is possible to effectively prevent bulging of the container.
- Furthermore, pallet containers having liner bags and outer jackets are known, where the outer jacket is formed by lattice tube frames, so that the vertical and horizontal lattice rods are formed by tubular rods, which are also welded to one another at crossings. Such tubular rods can have the most varied profiles. For example, it has already been proposed to produce the vertical and/or horizontal tubular rods from open profiles having a trapezoid cross-section (see for example U.S. Pat. No. 7,140,490).
- Finally, a pallet container having a lattice outer jacket is known from U.S. Pat. No. 5,655,679, in which stabilization is supposed to be achieved by four corner supports made of steel, having an angled profile.
- The known pallet containers have basically proven themselves in practice, but they are capable of being improved.
- It is therefore an object of the present invention to provide an improved pallet container for bulk material.
- Another object is the provision of such an improved pallet container for liquids or bulk material that overcomes the above-given disadvantages, in particular that is characterized by great stability and simple and cost-effective manufacture, without stackability of the pallet container being impaired.
- A stackable pallet container for transporting or storing fluent material has according to the invention a rigid pallet, a plastic liner bag sitting on the pallet, and a mesh outer jacket surrounding the plastic liner bag, secured to the pallet, and forming with the pallet an upwardly open cavity containing the liner bag. The jacket is formed by horizontal rods and vertical rods joined at crossings. At least partially U-section vertical reinforcement bars are fixed inside the outer jacket and each have an upper end formed on a side directed inward toward the bag with a cutout.
- In this connection, the invention proceeds, first of all, from what is known from DE 195 03 043 A1, that bulging can be reliably prevented if the mesh outer jacket is made with vertically extending reinforcement grooves on its side surfaces, which grooves are not formed into the mesh jacket, but rather are produced as separate reinforcement profiles, in an embodiment as U-section profiles, and are welded to the actual lattice jacket and therefore to the lattice structure. This has the advantage that for one thing, great stability is achieved by the additional reinforcement profiles, but for another thing, production is simplified, because the mesh jacket itself can be produced from planar mesh mats, for example steel lattice mats, without reinforcement profiles having to be formed into these mats. At the same time, the stability of the lattice jacket and therefore the stability of the entire pallet container can be improved by the U-section profiles. In the case of such a pallet container having reinforcement profiles, it is now guaranteed, by the cutout at the upper end of the reinforcement profile, according to the invention, that the stackability of the pallet container is not impaired. This is because it is basically practical if the reinforcement profiles extend over the entire height of the mesh jacket, so that they preferably extend all the way to the upper and lower end rods of the mesh jacket and can also be connected to these end rods, for example. Nevertheless, a further pallet can easily be set onto such a mesh jacket and consequently such a pallet container, so that the pallet containers can be stored and transported in a stack, partially nested. The cutouts according to the invention guarantee that the pallet positioned on the mesh jacket can essentially extend down into the mesh jacket underneath, so that secure positioning is guaranteed. In this connection, the cutouts can be configured stepped, for example. Preferably, however, the cutout of a reinforcement profile is formed by a recess that drops smoothly and continuously toward the liner bag.
- These cutouts can be produced in simple manner, without the stability of the reinforcement profiles being overly impaired. Nevertheless, the cutouts create sufficient room for the upper pallet of the next pallet container to be set onto the mesh jacket. Such a cutout, for example a cutout, preferably has a vertical height of 10 mm to 100 mm, preferably 20 mm to 60 mm, for example about 40 mm. In this connection, the cutout can run at an angle of about 30° to 80°, for example about 40° to 70°, relative to the horizontal. In practice, for example, an angle of 50° to 60°, preferably about 55°, is used.
- Preferably, the reinforcement profiles configured as U-section profiles are attached to the mesh jacket on the inside, for example welded to the horizontal lattice rods on the inside of the mesh outer jacket. In this connection, it is practical if the mesh outer jacket is formed from horizontal and vertical lattice rods, and the vertical lattice rods run on the inside, for example, and the horizontal lattice rods run on the outside, for example. The vertical lattice rods extend at least in part over the entire height of the mesh outer jacket. The horizontal lattice rods run over the entire circumference, as circumferential rods, and consequently over all four side walls of the container. An upper circumferential horizontal lattice rod and a lower circumferential horizontal lattice rod generally form the upper and the lower end of the lattice jacket, in each instance, where these upper and lower horizontal end rods can have an enlarged cross-section as compared with the other horizontal rods.
- In any case, simple steel lattice mats having solid lattice rods can be used for the production of the mesh jacket according to the invention, so that it is possible to do without the use of tubular rods, in particular.
- The horizontal and/or the vertical lattice rods preferably have a diameter of 4 mm to 8 mm, for example a diameter of 5 mm to 6 mm. The upper and lower end rods can have an enlarged diameter, in comparison, of 6 mm to 10, for example, about 8 mm, for example.
- The U-section profiles are preferably produced from metal, for example sheet metal having a thickness of more than 0.5 mm, for example 0.5 mm to 2 mm, preferably 0.5 mm to 1 mm, for example about 0.8 mm.
- Taking into consideration the fact that basically, plastic liner bags having groove-like molded-in parts are known, the possibility exists, within the scope of the invention, that the groove-shaped reinforcement profiles engage into these groove-shaped molded-in parts. In this connection, the mesh outer jacket according to the invention, having the groove-shaped reinforcement profiles, can basically be combined with known plastic liner bags. However, it also lies within the scope of the invention to specifically adapt the mesh outer jacket and the plastic liner bag to one another.
- In any case, it is practical if the groove-shaped reinforcement profiles are attached to the mesh jacket in such a manner that the U-section profiles are open toward the outside, so that the grooves project in the direction toward the plastic liner bag and preferably engage into groove-shaped molded-in parts of the plastic liner bag. However, they can also support themselves on a plastic liner bag having planar side surfaces.
- Basically, a mesh jacket can be used in which the horizontally running lattice rods are equidistant. It is practical that the U-section profiles are positioned between two adjacent vertical lattice rods. Preferably, however, a mesh jacket is used in which the vertical lattice rods are not equidistant. For example, the mesh jacket can have first regions that lie next to one another, distributed over the circumference, in which regions the vertically extending lattice rods have a small spacing, and second regions in which the vertical lattice rods have a large spacing that is greater than the small spacing. In the design of the mesh mat from which the mesh jacket is produced, the fact is consequently taken into account that the vertical U-section profiles according to the invention are between two vertical lattice rods in specific regions, so that in these regions, the vertical lattice rods have a greater spacing from one another. For example, it can be practical that the large spacing amounts to at least twice the small spacing, preferably about three times this spacing a. In this connection, the U-section profiles can have a total width that approximately corresponds to the small spacing between the vertical lattice rods.
- These thoughts with the different regions having a different spacing between the vertical lattice rods take the fact into account that—after the U-section profiles have been attached to the lattice structure—an essentially uniform structure is formed. The open surface area spanned by the individual lattice openings are all smaller than 100 cm2. Even if lattice mats having the larger spacing are produced during the course of production, after installation of the U-section profiles the remaining open surface area of the individual lattice openings is less than 100 cm2, so that in total, a stable structure is created.
- In a preferred further development, the U-section profiles can have a groove-shaped U-section part, on the one hand, and flat legs sections that extend out on both sides, on the other hand. While the U-section parts ensure reinforcement to a particularly degree, the flat leg sections serve—aside from an additional stability function—also for problem-free attachment of the profiles to the mesh jacket. The U-section parts can have a maximum or front width of 10 mm to 50 mm, for example about 20 to 40 mm. The flat attachment flanges can have a width of 5 mm to 30 mm, for example about 10 to 20 mm. The U-section profiles preferably have a total width of 30 mm to 100 mm, for example 40 mm to 80 mm, for example about 40 to 70 mm.
- The U-section profiles have a depth of 10 mm to 50 mm, for example, preferably 25 mm to 40 mm.
- The U-section profiles can be further improved if the U-section profiles, which are produced from sheet-metal strips by forming, for example, are provided at their edges with bends that are turned toward the inside. In this way, the stability is increased further and, in particular, the risk of injury when handling the pallet container is reduced.
- The U-section parts of the U-section profiles are preferably formed on two (planar) side sections and one bottom section that connects the side sections, so that these U-section parts have an essentially U-shaped basic shape, in total. In this connection, the bottom sections can be configured either as arc-shaped sections or also as flat or planar sections.
- Optionally, it lies within the scope of the invention that the U-section profiles, for example their U-section parts, have pressed-in recesses distributed over the profile length, where these pressed-in recesses are formed into the sheet metal. In this way, the stability of the U-section profiles can be further increased. These pressed-in recesses can be provided in the case of different profile shapes.
- The pallet container and therefore also the mesh outer jacket preferably have a rectangular base surface, so that the lattice jacket has four side walls. In general, the liner bag is provided with at least one outlet connector or one outlet opening, on which a shut-off organ is disposed. The mesh outer jacket consequently has a front wall assigned to the outlet opening and an opposite back wall, as well as two side walls that connect the front wall and the back wall with one another. In a preferred embodiment, at least two vertically extending U-section profiles are attached to the front wall, to the back wall, and to the side walls of the mesh outer jacket, in each instance, so that in total, preferably at least eight U-section profiles are attached to the mesh outer jacket. In a preferred further development, however, more U-section profiles are attached on the side walls, in each instance, than on the front wall and the back wall. Therefore it lies within the scope of the invention that two U-section profiles are attached to the front wall and/or the back wall, in each instance, while at least three, preferably four or more U-section profiles are attached to the side walls, in each instance. This configuration takes into account the fact that the shut-off organ is not supposed to be hindered by the reinforcement profiles, among other things.
- A mesh outer jacket for a stackable container of the type described is also an object of the invention. The mesh outer jacket according to the invention, with the U-section profiles attached to it, is consequently also placed under protection separately.
- The above and other objects, features, and advantages will become more readily apparent from the following description, reference being made to the accompanying drawing in which:
-
FIG. 1 is a perspective view of a pallet container according to the invention; -
FIG. 2 is a top view of the reinforcement jacket of the container; -
FIGS. 3 and 4 are views taken respectively in the directions of arrows III and IV ofFIG. 2 ; -
FIG. 5 is a perspective view of a reinforcement profile bar according to the invention; -
FIG. 6 is a large-scale view of the right end of the bar ofFIG. 5 ; -
FIG. 7 is a large-scale end view of the bar; -
FIG. 8 is a developed view of the lattice side wall without reinforcements; -
FIG. 9 is a view likeFIG. 8 , but with reinforcements; -
FIG. 10 is a view likeFIG. 5 of another reinforcement bar according to the invention; and -
FIG. 11 is a large-scale end view of theFIG. 10 bar. - As seen in the drawing a stackable pallet container for transporting and/or storing liquids or bulk material basically is comprised of a rigid
rectangular pallet 1 normally lying in a horizontal plane, a generally parallepipedalplastic liner bag 2 that sits on thepallet 1, and a meshouter jacket 3 that surrounds the plastic liner bag and that forms four planar and vertical side walls connected at corners to have a rectangular shape as seen from above.FIG. 1 shows that theplastic liner bag 2 is provided with an outlet opening or connector having avalve 4 and an upper opening covered here by a large removable cap 5. - The mesh
outer jacket 3 is made of horizontally running solid-steel lattice rods 6 and vertically extending solid-steel lattice rods 7 that are welded together atcrossings 8. Preferably, such a meshouter jacket 3 is produced from a steel mat or mesh. - In order to prevent bulging of the
liner bag 2 after it has been filled and/or when it is stacked, the meshouter jacket 3 is provided with vertically extending reinforcements on each of its side walls. According to the invention, these reinforcements are separate U-section profile bars 9 that are attached to the side walls formed by the meshouter jacket 3. These separately producedU-section profiles 9 are shown in detail inFIGS. 5 to 7 .FIGS. 2 to 4 show the mesh outer jacket with the reinforcement profiles attached to it. - The U-section profiles 9 are inside the
jacket 3 and welded to thehorizontal rods 6 of the meshouter jacket 3 by welds on the inside, thehorizontal lattice rods 6 being on the outside and the vertical lattice rods on the inside of thejacket 3. The U-section profiles 9 are attached to the meshouter jacket 3 in such a manner that they project inward toward theliner bag 2 but are open outward.FIG. 1 shows how theplastic liner bag 2 itself is provided with groove-forming molded-in parts into which the U-section profiles 9 of the meshouter jacket 3 engage. Themesh jacket 3 has first regions in which the vertical lattice rods 7 have a small horizontal spacing a and second regions in which the vertical lattice rods 7 have a second horizontal spacing b that is larger than the small spacing a. In this embodiment, the large spacing b amounts to at least twice, namely about three times the small spacing a. - The U-section profiles 9 have as shown in
FIG. 7 a total width A that approximately corresponds to the small spacing a of thevertical lattice rods 6. In this connection, it can be seen in the figures that the U-section profiles 9 have aU-section center part 9 a and planar flanges 9 b projecting to each side in a common plane. The outer edges of flanges 9 b are bent over at 11 toward the inside, that is toward the side from which theU-section part 9 a projects. - According to the invention, the U-section profiles 9 are each formed at an upper end with an upwardly open
U-shaped cutout 12 whose edge lies in a plane extending at an acute angle to the plane of the flanges 9 b. Thus thecutout 12 of eachprofile 9 is deepest at the apex 9 a″ of theU-section part 9 a and extends as mentioned in a plane along each of thelegs 9 a′ of thispart 9 a. The purpose of thesecutouts 12 is to guarantee that a second container can easily be fitted on top of and consequently stacked on the pallet container shown inFIG. 1 . Thus the reinforcement profiled 9 withcutouts 12 according to the invention allow particularly stable stacking of the containers while in no way impairing their strength. To this end eachprofile 9 extends the full height of thejacket 3, that is from thelowermost rod 6 a to theuppermost rod 6 b, to which they are also welded. - As shown here the vertically extending
U-section profiles 9 have a length L that corresponds to the height of themesh jacket 3, here about 1000 mm. The edge of eachcutout 12 extends at an angle α of about 55° relative to the horizontal h. The total depth E of thecutout 12 amounts to about 40 mm in this embodiment. The U-section profiles 9 are produced from sheet steel having a thickness F of about 0.8 mm. The U-section profiles 9 have a total width A of about 70 mm in the embodiment according toFIGS. 1 to 9 , where the centralU-section part 9 a has a front width B of about 40 mm and the two lateral flat sections 9 b each have a width C of about 20 mm. Thebends 11 have a width G of about 4 mm. The depth D of these U-section profiles amounts to approximately 25 mm to 30 mm. -
FIG. 1 further shows upper connecting profile bars 13 ling atop thebag 2 and extending across the upper end of thejacket 3. - The pallet container has a rectangular footprint, as does the mesh
outer jacket 3. The meshouter jacket 3 consequently forms a front side wall cut out at 6 c for theoutlet connector 4 and an opposite back wall, as well as two side walls that connect the front and back walls with one another. The drawings show that two of the U-section profiles 9 are attached to the front wall, and that two of the U-section profiles 9 are also attached to the back wall. Four of the U-section profiles 9 are attached to each of the two side walls. The U-section profiles 9 on the front wall and on the back wall consequently have a greater spacing from one another than on the side walls. This takes the fact into account that the U-section profiles are not allowed to hinder handling of the shut-off organ. -
FIGS. 10 and 11 show an alternative embodiment of theU-section profile 9. The basic structure and the basic method of functioning of the U-section profiles according toFIGS. 10 and 11 correspond to the structure and function of theU-section profile 9 shown inFIGS. 1 to 9 . The embodiment according toFIGS. 10 and 11 differs from the embodiment according toFIGS. 5 to 7 essentially in that theU-section part 9 a is formed, in the case of all the embodiments, by two planar sides orlegs 9 a′ and aplanar apex 9 a″ that connects thelegs 9 a′. In the embodiment according toFIGS. 5 to 7 , these apex 9 a″ is arcuate while thelegs 9 a′ are flat or planar. However, there is always a basicallyU-shaped part 9 a. InFIGS. 10 and 11 , the angle α once again amounts to about 55°, and the total height E of thecutout 12 also amounts to 40 mm. However, the U-section profiles 9 have a smaller total width A of about 50 mm in the case of this embodiment, where the centralU-section part 9 a has a front width B of about 20 mm to 25 mm, and the two lateral flat sections 9 b each have a width C of about 10 mm. The depth D of these U-section profiles amounts to approximately 25 mm to 30 mm. -
FIGS. 10 and 11 also showrecesses 14 be formed in thekegs 9 a′ of theU-section profile 9. A plurality ofsuch recesses 14 are provided along the length of the profile, serving to increase the rigidity of theU-section profile 9. These pressed-inrecesses 14 can be provided on bothlegs 9 a′, specifically preferably equidistant over the entire length of the U-section profile, where therecesses 14 on one of thelegs 9 a′ are staggered relative to those on theother leg 9 a′. This is not shown in the figures.Such recesses 14 can also be provided in the embodiments according toFIGS. 5 to 7 . - Furthermore,
FIGS. 8 and 9 show that, to start with, an “irregular” lattice structure is produced with the different regions having the different spacings a and b between the vertical rods 7, in each of which regions the structure is basically uniform structure is formed, however, after attachment of the U-section profiles 9. Nonetheless no opening is left that is greater than 100 cm2. This is the case in the regions with the small spacing a, and is also the case in the regions with the wide spacing b where the reinforcement bars 9 are provided, even though in the regions with the spacing b of the rods 7 the holes between therods 6 and 7 would otherwise be greater than 100 cm2.
Claims (20)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE102012100801.9 | 2012-01-31 | ||
DE102012100801 | 2012-01-31 | ||
DE102012100801A DE102012100801A1 (en) | 2012-01-31 | 2012-01-31 | Stackable pallet container |
Publications (2)
Publication Number | Publication Date |
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US20130193031A1 true US20130193031A1 (en) | 2013-08-01 |
US8505722B1 US8505722B1 (en) | 2013-08-13 |
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US13/753,563 Expired - Fee Related US8505722B1 (en) | 2012-01-31 | 2013-01-30 | Stackable pallet container |
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US (1) | US8505722B1 (en) |
EP (1) | EP2623435B1 (en) |
CA (1) | CA2804875C (en) |
DE (1) | DE102012100801A1 (en) |
DK (1) | DK2623435T3 (en) |
ES (1) | ES2534813T3 (en) |
HR (1) | HRP20150404T1 (en) |
PL (1) | PL2623435T3 (en) |
PT (1) | PT2623435E (en) |
RS (1) | RS54027B1 (en) |
SI (1) | SI2623435T1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180129907A (en) * | 2016-04-07 | 2018-12-05 | 마우저-베르케 게엠베하 | Pallet container |
US11530082B2 (en) * | 2019-05-23 | 2022-12-20 | Maschio N.S. S.R.L. | Plate for metal cage for tank |
USD979241S1 (en) * | 2021-02-23 | 2023-02-28 | Monsanto Technology Llc | Caged co-pack container |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3037319A1 (en) | 2015-06-12 | 2016-12-16 | Sotralentz Packaging | STACKABLE PALLET CONTAINER WITH SUPERIOR REINFORCEMENT FRAME |
FR3037931A1 (en) | 2015-06-26 | 2016-12-30 | Sotralentz Packaging | STACKABLE PALLET CONTAINER WITH SUPERIOR REINFORCEMENT FRAME |
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US5704477A (en) * | 1994-12-07 | 1998-01-06 | Sotralentz S.A. | Pallet-type storage/transport container |
US6202844B1 (en) * | 1996-09-19 | 2001-03-20 | Roth Werke Gmbh | Pallet container |
US20050145521A1 (en) * | 2004-01-07 | 2005-07-07 | Perkins David W. | Bag nozzle retention system |
US20110073510A1 (en) * | 2009-09-29 | 2011-03-31 | Daviplast-Servicos De Consultoria, Sociedade Unipessoal Lda. | Pallet container for liquids |
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DE4438739C1 (en) | 1994-10-29 | 1995-10-26 | Schuetz Werke Gmbh Co Kg | Pallet container for transporting and storing liquids |
DE4440103C1 (en) * | 1994-11-10 | 1995-09-28 | Sotralentz Sa | Pallet container for plastics, liqs., or loose material |
DE19503043A1 (en) | 1995-02-01 | 1996-08-08 | Sotralentz Sa | Stackable pallet holder with rectangular base layout |
DE10002610B4 (en) | 2000-01-22 | 2004-07-08 | Sotralentz S.A. | Containers for liquids and flowable products |
BR0111276A (en) | 2000-05-25 | 2003-06-10 | Mauser Werke Gmbh & Co Kg | Palette Container |
DE10103656A1 (en) | 2000-05-25 | 2001-12-06 | Mauser Werke Gmbh & Co Kg | Palletized container for dangerous liquids has thin-walled plastic container on a pallet and surrounded by a welded cage |
DE20118731U1 (en) * | 2001-11-06 | 2002-02-21 | Roth Werke GmbH, 35232 Dautphetal | Mesh basket for a container |
DE10301517B3 (en) * | 2003-01-17 | 2004-03-11 | Protechna S.A. | Transport and storage container for liquid has vertical grid rods of grid mantle enclosing inner plastics container welded to upper edge profile supporting stacked container |
-
2012
- 2012-01-31 DE DE102012100801A patent/DE102012100801A1/en not_active Withdrawn
- 2012-11-16 DK DK12193094T patent/DK2623435T3/en active
- 2012-11-16 RS RS20150255A patent/RS54027B1/en unknown
- 2012-11-16 SI SI201230184T patent/SI2623435T1/en unknown
- 2012-11-16 EP EP12193094.5A patent/EP2623435B1/en not_active Not-in-force
- 2012-11-16 PT PT121930945T patent/PT2623435E/en unknown
- 2012-11-16 ES ES12193094.5T patent/ES2534813T3/en active Active
- 2012-11-16 PL PL12193094T patent/PL2623435T3/en unknown
-
2013
- 2013-01-30 US US13/753,563 patent/US8505722B1/en not_active Expired - Fee Related
- 2013-01-31 CA CA2804875A patent/CA2804875C/en not_active Expired - Fee Related
-
2015
- 2015-04-13 HR HRP20150404TT patent/HRP20150404T1/en unknown
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US5704477A (en) * | 1994-12-07 | 1998-01-06 | Sotralentz S.A. | Pallet-type storage/transport container |
US6202844B1 (en) * | 1996-09-19 | 2001-03-20 | Roth Werke Gmbh | Pallet container |
US20050145521A1 (en) * | 2004-01-07 | 2005-07-07 | Perkins David W. | Bag nozzle retention system |
US20110073510A1 (en) * | 2009-09-29 | 2011-03-31 | Daviplast-Servicos De Consultoria, Sociedade Unipessoal Lda. | Pallet container for liquids |
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KR20180129907A (en) * | 2016-04-07 | 2018-12-05 | 마우저-베르케 게엠베하 | Pallet container |
KR102410387B1 (en) | 2016-04-07 | 2022-06-17 | 마우저-베르케 게엠베하 | pallet container |
US11530082B2 (en) * | 2019-05-23 | 2022-12-20 | Maschio N.S. S.R.L. | Plate for metal cage for tank |
USD979241S1 (en) * | 2021-02-23 | 2023-02-28 | Monsanto Technology Llc | Caged co-pack container |
Also Published As
Publication number | Publication date |
---|---|
CA2804875A1 (en) | 2013-07-31 |
ES2534813T3 (en) | 2015-04-28 |
DE102012100801A1 (en) | 2013-08-01 |
DK2623435T3 (en) | 2015-04-20 |
PT2623435E (en) | 2015-05-12 |
EP2623435A1 (en) | 2013-08-07 |
SI2623435T1 (en) | 2015-07-31 |
RS54027B1 (en) | 2015-10-30 |
EP2623435B1 (en) | 2015-01-14 |
HRP20150404T1 (en) | 2015-07-17 |
PL2623435T3 (en) | 2015-08-31 |
CA2804875C (en) | 2015-04-07 |
US8505722B1 (en) | 2013-08-13 |
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