EP3439985A1

EP3439985A1 - Pallet container

Info

Publication number: EP3439985A1
Application number: EP17716787.1A
Authority: EP
Inventors: Detlev Weyrauch
Original assignee: Mauser Werke GmbH
Current assignee: Mauser Werke GmbH
Priority date: 2016-04-07
Filing date: 2017-04-07
Publication date: 2019-02-13
Anticipated expiration: 2037-04-07
Also published as: HRP20220119T1; ES2906708T3; EP3575238B1; IL262047A; BR112018070487B1; ES2746855T3; WO2017174198A1; PL3439985T3; KR102410387B1; CA3019867A1; CN109153483B; MX2019008586A; US10961035B2; CN109153483A; AU2017246073A1; BR112018070487A2; RU2760720C2; MY189948A; EP3439985B1; RU2708099C1

Abstract

The invention relates to a pallet container (10) for storing and for transporting in particular dangerous fluids or fluid filling materials, comprising a thin-walled rigid inner container (12) made of a thermoplastic material, a tube-grid frame (14) made of welded together horizontal and vertical tube rods (18, 20), sealingly surrounding the plastic inner container (12) as a support casing, and a base pallet (16) on which the plastic inner container (12) is positioned and to which the tube-grid frame (14) is securely connected, wherein the base pallet (16) is configured as a composite pallet or frame pallet having corner (22) and middle feet (24) made of plastic, steel or wood, wherein, in order to stack similar pallet containers (10) on top of one another, a recess (32) is provided in the corner (22) and middle feet (24) on the base side along the outer edges of all four lateral walls of the base pallet (16), designed in such a way that the uppermost surrounding horizontal tube rod (18) of the tube-grid frame (14) of a pallet container (10) stacked underneath engages in an interlocking manner with the recess (32) when stacking two pallet containers (10) on top of one another in a coordinated manner, wherein, for a secure transportation of two filled pallet containers (10) stacked on top of one another by means of a forklift truck, a deeper recess (32) is formed such that it is deeper, i.e. up to twice as deep (or high), in the vertical direction than in the horizontal or radial direction.

Description

pallet container

The invention relates to a pallet container (IBC) for the storage and transport of particularly dangerous liquid or flowable products with a thin-walled rigid inner container made of thermoplastic material, with a plastic inner container as a support jacket tightly enclosing tubular grid frame of welded together horizontal and vertical tube rods, and with a bottom pallet on which rests the plastic container and with which the tubular grid frame is firmly connected, wherein the bottom pallet in composite design or as a frame pallet with corner and middle feet of plastic, steel or wood and underneath circulating base steel pipe is formed , wherein for a stacking of similar pallet container bottom side along the outer edges of all four side walls of the bottom pallet in the corner and middle feet a recess is provided which is formed so that when stacked two pallet containers in a coordinated manner, the topmost circumferential horizontal tube rod of the tubular lattice frame of a stacked pallet container engages precisely fit in the recess or "nest".

problem:

Such, particularly frequently used in the chemical industry pallet container with a capacity of about 1000 liters have standardized dimensions. The pallet containers considered here have a length of approx. 1200 mm, a width of approx. 1000 mm and a height of approx. 1151 mm and may only be transported as a 2-fold stack (an IBC below and a stacked IBC) when filled , For long-distance transport by train or truck or by ship overseas usually closed 20-foot or 40-foot ISO containers are used. These ISO containers (eg Maersk) also have standardized dimensions (20-foot containers: length about 6058 mm, width about 2500 mm, height about 2591 mm, the 40 "container is otherwise the same Dimensions are exactly twice as long) and are loaded and unloaded through a tailgate For the loading of ISO containers, this also applies for both sizes (Hapag Lloyd), on the one hand the width of about 2343 mm and on the other hand the height of about 2292 mm of the door opening is of great importance. Unfortunately, this results in a 2-fold stack of filled pallet containers in the

Standard version a stack height of approx. 2290 mm to be considered. The purely computational double height of two pallet containers would be 2 x 1151 mm = 2302 mm. The lower value of about 2290 mm results from the fact that the stacked

15.5 mm within the uppermost horizontally circulating tube rod of the lattice frame in this lattice frame, dipping or "nesting" the pallet container with its base surrounding the base steel tube until it projects beyond the base steel tube Corner and middle feet come to rest from above on the top horizontal tubular bar. In this case, the uppermost horizontally encircling tube rod of the lattice frame engages outside on the base steel tube in a free space formed there or in a recess on the lower outer edge of the corner and middle feet, thereby providing security against slippage of the stacked pallet container by transporter vibrations given is.

Narrow limits are specified in the constructive design of the IBCs, with the "approx. Specifications" for the length dimensions in the present dimension all encompassing a range of plus / minus 2 mm. The usual nesting depth is about 15.5 mm, so the actual height of a stack of two IBCs (2 x 1151 - 15.5) = about 2286.5 mm. Due to the tolerances of plus / minus 2 mm each, the stack height to be considered is taken into account with 2290 mm for safety reasons.

State of the art:

A similar pallet container with a wooden pallet is described in the publication EP 1 375 382 B2 (vL) as "intermediate bulk container of low height". Here, on the one hand, the lowest circumferential horizontal tube ring of the lattice frame is not simply placed as usual on the upper plank floor as the plastic inner container, but surrounds the plank floor on the periphery and sits on a deeper peripheral outer shoulder. On the other hand, it is proposed to reduce the entry height of the lateral rectangular pallet recesses for the engagement of the forks of a forklift vehicle by a lower height of the corner and middle feet. This results in a reduction in the total height of the individual pallet container in both cases. This is disadvantageous in that pallet containers are used as standardized containers with given dimensions represent only one link in the logistics chain of the chemical industry. Any deviations from standard dimensions can lead to significant disruptions in the manufacturing process of bulk chemicals, so that the customers of large chemicals no longer request such containers. Pallet containers with reduced overall height can z. B. in fully automatic filling systems lead to interruptions and pallet container with reduced entry height can then be handled only with forklifts with relatively thin tines. Standard pallet trucks can not handle pallet containers of this standard type

be picked up and transported.

Task:

It is an object of the present invention to overcome the existing disadvantages of the prior art and to provide a pallet container (= IBC) whose

Overall height remains the same compared to a standard pallet container, but can be loaded twice stacked by forklift truck through the rear door of an ISO container.

Solution:

This object is achieved with the special features of claim 1. The features in the subclaims describe further advantageous design possibilities of the pallet container according to the invention. The proposed technical teaching opens up improved use of IBCs with frame pallets for transport in ISO containers. This is effectively effected in that in the bottom pallet of the pallet container, the recess is formed on the outside of the base steel tube at the lower outer edge of the corner and center feet in the vertical direction deeper than in the horizontal or radial direction, up to twice deep (or high) as in horizontal or radial direction. As a result, the upper patch pallet container significantly lower, ie, for example, twice as deep as in the prior art or sink even deeper into the lower pallet container, ie "einnesten", so that the total height of the stack of 2 is reduced by one piece and this enough free space is sufficient to transport and load a stack of 2 on the forks of a forklift truck through the height-limited tailgate into the ISO container. The remains Total height of each individual pallet container equal to the standard height, so that no problems can occur at bottling plants.

In a constructive embodiment of the invention, it is provided in a concrete manner that the recess at the lower outer edge of the corner and middle feet in the horizontal or radial direction 20 mm - 25 mm plus / minus 2 mm deep and 25 mm - 40 mm in the vertical direction / minus 2 mm deep is formed. By this simple measure incidentally, a material saving on the corner and middle feet is achieved without having to take a loss of strength in purchasing. In this case, when stacking two pallet containers, the uppermost circumferential horizontal tube rod of the tubular lattice frame of the stacked pallet container engaging in the recess comprises the lower outer edge of the bottom pallet of the stacked pallet container up to a height of approximately 40 mm.

In the solution according to the invention thus a reduced height of 2250 mm - 2270 mm of a double stacked "tower" corresponding to the 20 mm - 40 mm plus / minus 2 mm deeper implementation of the stacked pallet container realized. That's enough for a 2-stack, d. H. Transporting two pallet containers simultaneously on the forks of a forklift vehicle through the tailgate into a 20-foot or 40-foot ISO container and storing them in stacks of 2 in the inner cargo hold.

As a result, a 20-foot ISO container can be loaded with 20 pieces of the pallet container according to the invention in half the time compared to a single load with 18 standard pallet containers in half the time and of course also unloaded again later. It can now be stored in the last row four IBCs due to the sufficient distance to the upper door frame; previously that was only possible for two IBCs.

Advantageously, the entry height for the forks of a forklift truck or a roller truck is still not changed in the palette container version with greater nesting depth with 100 mm and also the total height of the individual pallet container remains the same. This is very important for a trouble-free functioning of the automatic filling devices of large industrial customers.

In an embodiment of the invention, it is provided that the uppermost circumferential horizontal tube rod of the tubular lattice frame is stiffened with two transverse struts which are connected to two opposing struts. overlying outer sides of the horizontal Roh rstabes by means of one each

Horizontal pipe rod cross-U-shaped pipe end are fixed with two mutually bolted legs of the U-shaped pipe ends, wherein for the

Screwing the pipe ends-legs each flat-headed furniture screws are screwed. When stacking two pallet containers with greater Nestungstiefe come in the composite pallet below the plastic corner and - center feet encircling base steel pipe directly on the two cross struts and the inner legs of the U-shaped pipe ends to a lower and lateral supporting system.

The invention will be described below with reference to the drawings

preferred embodiments explained and described. Show it:

FIG. 1 shows a front view of a stack of two IBCs according to the invention,

FIG. 2 shows a perspective partial sectional view of a 20-foot ISO container with 18 standard IBCs stored in it,

3 shows a longitudinal section through a 20-foot ISO container during the loading process by means of a forklift vehicle,

FIG. 4 shows a longitudinal section through the 20-foot ISO container, each with a 2-stack of standard IBCs and IBCs according to the invention,

FIG. 5 is a partial sectional view through the outer edge of the bottom pallet of a stacked IBC and the upper portion of the tube lattice frame of a stacked IBC;

FIG. 6 shows a schematic partial view of the region of the outer edge of the bottom pallet of a stacked IBC and the upper region of the tubular lattice frame of a stacked IBC,

7 shows a perspective partial view of the upper edge area of a stacked IBC, FIG.

FIG. 8 shows a perspective view of three sets of furniture screws for the IBCs according to the invention, FIG. 1 shows a 2-fold stack of two stacked pallet containers according to the invention for storing and transporting, in particular, hazardous liquid or flowable contents, which are numbered in each case by the reference numeral 10. The pallet containers 10 each have a filling volume of approx. 1000 l and standardized dimensions of length approx. 1200 mm, width B approx. 1000 mm and height H approx. 1151 mm. These approximate values in the present dimension should all encompass a range of plus / minus 2 mm, because the constructive design of the IBCs sets narrow limits. The main elements of the pallet container 10 consist of a thin-walled rigid inner container 12 made of thermoplastic material, a plastic inner container 12 as a support jacket tightly enclosing tubular grid frame 14 and a bottom pallet 16 on which the inner container 12 rests and with which the tubular grid frame 14 fixed connected is. The tubular grid frame 14 (outer container) consists of welded together horizontal and vertical tube rods 18, 20. In order to obtain a closed outer container, the annular circumferential horizontal tube rods 18 are each firmly connected at a junction. The bottom pallet 16 is in the illustrated embodiment as a composite pallet with an upper support plate made of sheet steel for supporting the plastic inner container 12, with an underlying steel tube support frame, with an injection molding of thermoplastic

Plastic manufactured corner feet 22 and middle feet 24 and a below the corner and middle feet 22, 24 surrounding bottom pipe linkage 26 formed of steel pipe. Alternatively, however, the pallet could also be designed, for example, as a steel pallet. On the illustrated front side of the IBC 10, a labeling board 28 made of thin sheet metal for the identification of the respective liquid filling material is fixed in the middle height of the pipe grid frame 14. In the middle of the bottom of the plastic inner container 12 is for

Removal of the liquid filling a withdrawal fitting 30 connected.

For a stacking of similar pallet container 10, a recess 32 is provided on the bottom side along the outer edges of all four side walls of the bottom pallet 16 in the corner 22 and middle feet 24, in which in stacking the top circumferential horizontal pipe bar 20 of the tubular lattice frame 14 of a stacked pallet container 10th snugly interlocking or nesting. On all four sides of the bottom pallet 16 between the corner feet 22 and middle feet 24 corresponding recesses 34 for engagement of forks of a forklift vehicle 36th or roller lift truck provided. Due to the measures according to the invention results in a height H2e of the 2-stack of inventive IBCs of 2250 mm - 2270 mm.

Figure 2 shows a loaded with 18 standard IBCs 20-foot ISO container 38, according to the prior art. The loading of the ISO container 38 by means of a forklift vehicle 36, each with a forked pallet container 10, because two recorded in the stack pallet container 10 due to the limited height of the door opening HT of 2292 mm do not fit one above the other through the tailgate. In addition, the IBCs must be stacked alternately once in the longitudinal direction and once in the transverse direction next to each other in a row in order to obtain the best space utilization. This is in Figure 2 at the two respectively across the topsoil of the

Plastic inner container 12 extending cross members 40 can be seen very well. The upper two IBCs in the penultimate row and the two IBCs in the last row in front of the rear door must also be fixed by means of appropriate transport securing measures such as tension straps 42 and holding plates 44 for transport. The fact that the two upper IBCs in the last row can no longer be stacked leaves 10% of the cargo space unused.

In Figure 3, a 20-foot ISO container 38 is shown in the same way, in which two standard IBCs are stored stacked on the rear wall. The 2-piece stack has a height H2S of 2290 mm. With an inside height in the ISO container (Hapag LLoyd) of 2385 mm, this results in a free space FS for the upper standard IBC of 95 mm (with an embedment of 15.5 mm). To lift the upper standard IBC, the forklift must first raise the IBC vertically over the nest by at least 25 mm, then move it out of the ISO container 38 horizontally in a remaining space of 70 mm can. In front of the rear door, the IBC must then be lowered once more so that it can pass under the upper edge of the tailgate.

In the case of the ISO container 38 shown in FIG. 4, a double stack of conventional standard IBCs with a stack height H2S of 2290 mm can be seen in a comparative manner on the left, while on the right a 2-stack of inventive IBCs with deeper nesting (plus 20 mm). 40 mm) with a stacking height H2e of 2250 mm - 2270 mm is shown. From this it is clear that the right stack with both IBCs in the stack can be unloaded in one go through the back door, while the left stack must first be unstacked and the IBCs, first the top one and then the bottom one must be fed out separately.

The structural design of a support element is shown concretely in Figure 5 in a perspective view. The part-circular cutout shows a lower right corner of a plastic injection-molded metatarsus 24. Approximately in the middle of the bottom surface of the plastic midfoot 24 is - in cross-sectional view - by means of a countersunk screw 46 firmly screwed, horizontally encircling bottom tube linkage 26 can be seen. To the right of the bottom pipe string 26, a recess 32 is formed toward the lower outer edge of the middle foot 24, in which the uppermost horizontally encircling pipe rod 18 of the pipe lattice frame 14 engages. The uppermost horizontally circulating tube bar 18 is welded to the upper flattened end 48 of all vertical tube bars 20. In the solution according to the invention, the recess 32 has been enlarged - in cross-sectional view - by an additional approx. 20 mm - 40 mm to a recessed recess 50 which is deeper in the vertical direction and up to twice as deep or high as in the horizontal or vertical direction radial direction. The recessed recess 50 includes the existing recess 32 and is formed in the horizontal or radial direction 20 mm - 25 mm plus / minus 2 mm deep and in the vertical direction 25 mm - 40 mm, plus / minus 2 mm, deep.

Characterized in that in a stacking of two inventive IBCs with (in cross-sectional view) recessed recess 50 of the upper circumferential horizontal tube rod 18 of the tubular lattice frame 14 of the stacked pallet container from below into the recessed recess 50 engaging the lower outer edge of the bottom pallet 16 of the stacked pallet container 10 to a height of about 40 mm plus / minus 2 mm, on the one hand results in an - plus / minus 2 mm - 20 mm - reduced 40 mm overall height of the IBC stack, which is a transport of 2 IBCs on top of each other (one stack ) on the forks of a forklift vehicle through the rear door of an ISO container and on the other hand advantageously provides increased security against slippage of the stacked IBCs during transport vibrations and excessive cornering of the transport vehicle. In the "deeper nesting", the upper IBC sinks deeper into the lower IBC - as indicated schematically in FIG. 5 - so that the uppermost circumferential horizontal tube bar 18 is now positioned in the upper half of the recessed recess 50 and the bottom horizontally revolving Bottom pipe linkage 26 is moved according to the shift arrow 52 in a low-lying "nesting position" 54.

In Figure 6, this "deeper Nesting" is schematically illustrated on a tubular cross member 40, wherein the tubular cross member 40 at its two outer ends (here only the right side shown) flattened and a U-shaped tube end 56 with an outer leg 60th and an inner leg 58 is shaped so that it is fitted snugly on the uppermost circumferential horizontal tube rod 18. The two legs 58, 60 of the U-shaped tube ends 56 are screwed below the rotating horizontal tube bar 18 by means of flat-headed furniture screws 62 against each other. From a stacked IBC here only the revolving floor pipe string 26 (in cross section) is shown as an upper circle. So far, the bottom pipe string 26 dipped about halfway behind the topmost circumferential horizontal pipe bar 18 about halfway. The shift arrow 52 shows the bottom pipe string 26, as shifted according to the present invention in the advantageous low-lying "nesting position" 54.

Finally, FIG. 7 shows an illustration in which only a short section of the deep-seated ground pipe string 26 can be seen from a stacked IBC. It becomes clear that when stacking two IBCs with larger ones

Nesting depth in the composite pallet which passes below the plastic corner and center feet surrounding base steel tube 26 directly to the flattened ends of the two cross members 40 and the inner legs 58 of the U-shaped tube ends 56 to a lower and lateral supporting attachment.

The present inventive solution provides the advantage that two stacked pallet containers with a unit height of 1151 mm by sinking the upper pallet container in the lower pallet container (= embedding) total only a total stack height H2e of about 2250 mm - 2270th mm and thus by means of a forklift vehicle in a stack of 2, ie in the stacked state through the tailgate of a 4 "ISO container with an opening height HT of the rear door of about 2292 mm are made passable and stackable. Conclusion: From the previous description and the figures representations it is clear that the technical teaching of the present invention, a major drawback of the prior art can be easily remedied and with a small structural change, a large impact can be achieved.

References list

Pallet container 46 Countersunk screw

Plastic inner container 48 flattened end (20)

Pipe grid frame 50 recessed recess

Floor Pallet Shift Arrow (26)

horizontal pipe bars (14) 54 "nesting position" (26)

vertical pipe bars (14) U-shaped pipe end (40)

Plastic Corner Base (16) 58 Inner Thigh (56)

Plastic midfoot (16) outer thigh (56)

Floor pipe rods (16) 62 Furniture screw

Labeling Board 64 Flat Head Screw (62)

Removal fitting Flat head sleeve nut (62) Recess (22, 24) B Width (10)

Recesses (16) H height (10)

Forklift Truck H2e Altitude Two Stacks (10)

20-foot ISO container height door opening (38)

Crossbeams (14) H2S Height Double stacks Standard IBC Tensioning belt Freiraum Two stacks Standard IBC Stiffeners Enlargement (32)

Claims

claims

1.) pallet container (10) for storage and transport of particular hazardous liquid or flowable products with a thin-walled rigid inner container (12) made of thermoplastic material, with a plastic inner container 12 as a support jacket tightly enclosing tubular grid frame (14) from each other welded horizontal and vertical tube bars (18, 20), and with a bottom pallet (16) on which the plastic inner container (12) rests and with which the tubular grid frame (14) is fixedly connected, the bottom pallet (16) as Composite design or as a frame pallet with corner (22) and middle feet (24) made of plastic, steel or wood and underneath circulating base steel tube (26) is formed, wherein for a stacking of similar pallet container (10)

on the bottom side along the outer edges of all four side walls of the bottom pallet (16) in the corner (22) and middle feet (24) a recess (32) is provided which is formed so that when stacking two pallet container (10) in a coordinated manner of the uppermost circumferential horizontal pipe rod (18) of the tubular lattice frame (14) of a stacked pallet container (10) engages with a precise fit in the recess (32),

characterized in that

the recess (32) in the vertical direction deeper and up to twice as deep (or high) is formed as in the horizontal or radial direction.

2.) pallet container according to claim 1,

characterized in that

the recess (32) in the horizontal and / or radial direction 20 mm - 25 mm, plus / minus 2 mm deep and in the vertical direction in about 40 mm, plus / minus 2 mm deep.

3.) pallet container according to one of the preceding claims 1 to 5,

characterized in that

the uppermost circumferential horizontal tube bar (18) of the tubular lattice frame (14) of the stacked pallet container (10) engaging the recess (32) the lower outer edge of the bottom pallet (16) of the stacked pallet container (10) to a height of about 40 includes mm.

4.) Pallet container according to one of the preceding claims 1 to 3,

characterized in that the uppermost circumferential horizontal tube bar (18) of the tubular grid frame (14) is stiffened with two transverse struts (40), which on two opposite outer sides of

Horizontal pipe rod (18) by means of one each of the horizontal pipe rod (18)

cross-U-shaped pipe end (56) with two mutually bolted legs (58, 60) of the U-shaped pipe ends (56) are fastened, wherein for the

Screwing the pipe ends-legs (58, 60) each flat-headed furniture screws (62) are screwed.

5.) pallet container according to one of the preceding claims 1 to 4,

characterized in that

in Ubult stacking of two pallet containers (10) in the case of a version with composite bottom pallet (16) below the corner (22) and middle feet (24) made of plastic encircling base steel tube (26) directly on the two cross members (40) and the inner legs (58) of the U-shaped pipe ends (56) comes to rest.

6.) pallet container according to one of vohergehenden claims 1 to 5,

characterized in that

when stacking two pallet containers (10) the lower outer edge of the bottom pallet (16) up to the end face of the recess (32) over a height of about 40 mm plus / minus 2 mm inside along the topmost horizontal horizontal Pipe rod (16) of the pipe grid frame (12) of the stacked pallet container (10) is formed engaging.

7.) pallet container according to one of vohergehenden claims 1 to 6,

characterized in that

in the stacking of two pallet containers (10) with a unit height H of about 1151 mm by sinking the upper pallet container in the lower pallet container (= Einnestung) total only a total stack height H2e of about 2250mm - 2270 mm results ,

8.) pallet container according to one of vohergehenden claims 1 to 7,

characterized in that

two stacked pallet containers (10) only have a total stack height H2e of about 2250 mm - 2270 mm and by means of a forklift vehicle in a 2-stack, d. H. in the stacked state through the rear door of a ^ '- ISO container with an opening height HT of the rear door of 2292 mm are made passable and stackable.