EP2927159B1 - Self-supporting transport container and method of producing the same - Google Patents

Description

The invention relates to a self-supporting transport container in modular design, in particular water or extinguishing agent tank for fire fighting vehicles or municipal vehicles and a method for its preparation, as described in the claims 1 and 20.

The WO 01/83327 A1 describes a car body in the form of a container for a rail vehicle, which can be composed of individual walls. In order to allow access into the interior bounded by the walls, a sliding door arrangement is provided in at least one of the walls. The individual walls define a receiving space and are connected to each other facing each other joints. In order to prevent ingress of moisture or liquid in the region of the joints, the joint is either provided on the side facing away from the receiving space outside by means of its own cover or cover the space in the corner between two facing walls between the respective inner layers. In the free space arranged on the inside in the corner area, an additional insulating element can be arranged. Individual ones of the walls have a multilayer structure and include an inner layer, an outer layer, and an insulating material disposed between these layers. The insulating material is enclosed on all sides by the inner layer and the outer layer. Furthermore, the insulating material is projected from each facing walls of both sections of the inner layer as well as portions of the outer layer. In this case, those portions of the inner layer and the outer layers of a first wall, which project in the direction of a second wall, aligned at an angle with respect to a base plane defined by the inner layer. The sections of the inner layer and the outer layer of the first wall are further connected to each other at their mutually facing sides in a first contact portion sealingly together and form a first holding approach. Those portions of the inner layer and the outer layer projecting beyond the second wall are sealingly connected to each other at their mutually facing sides in a second contact section and form a second retaining extension. The two retaining lugs forming portions of facing walls are each arranged in the region of the outer layers thereof and directed parallel to each other and at an angle to each other. The two mutually facing walls are supported on the retaining lugs to each other, wherein the mutual connection of the holding lugs is done by means of an adhesive. The disadvantage here is that the arranged in the corner area between each other facing walls impact area is covered by an additional insulating to achieve a continuous insulation.

A storage container in sandwich construction as a cellar tank for the storage of fuel oil is from the DE 23 16 553 A known. This storage container is composed of side walls, a front and rear end wall, a bottom wall and a roof wall. The connecting regions between the individual walls are each arranged in their longitudinal edge region, wherein the joints between the walls are laminated with an additional laminate layer. The wall structure of the individual walls comprises a glass fiber-reinforced polyester resin arranged carrier material made of a polyurethane foam board. The coating of the carrier material takes place on both sides in one operation in the wet process.

Another self-supporting transport container for holding powders or liquids is in the DE 35 17 289 A describe. In this case, the planar wall areas are reinforced by placing support elements formed of plastic foam plates on an inner cover layer of fiberglass mats, roving or the like. Reinforced plastic. Thereafter, an outer cover layer of glass fiber reinforced plastic is applied. The corner region is covered both inside and outside continuously by the cover layers, wherein no support element is provided directly in the corner region and only the plastic material is provided here as a filler between the two cover layers. In addition, a reinforcing insert may also be provided.

The present invention has for its object to provide a self-supporting transport container in modular design, which has a low heat transfer coefficient and penetration of liquid in the thermal barrier coating in the joint area between the container is set together walls permanently prevented. In addition, also a method for producing such a transport container is to be specified from a plurality of individual walls, in which despite the modular design in the joint area between the walls of the container together to prevent penetration of liquid into the thermal barrier coating.

This object of the invention is solved by the features of claim 1.

The advantages resulting from the combination of features of this claim reside in the fact that in turn a full envelopment of the intermediate structure is made possible with additional creation of connecting sections. Since here in a longitudinal edge region of one of the walls, the angularly oriented and projecting over the inner structure of the respective adjacent wall sections and the retaining approach or support formed thereof can be achieved as a full enveloping the intermediate structure and subsequently also a permanently liquid-tight connection between be created the walls to be joined. Due to the protruding holding approach, an additional form-fitting supporting action of the wall supported thereon can thus also be achieved.

According to one embodiment, as described in claim 2, so almost completely a cold bridge can be avoided in the corner between immediately adjacent walls. This can be achieved even better insulation effect in this connection area.

The advantages resulting from the features of claim 3 lie in the fact that by displacing the joint area directly from the corner area or transition area between individual walls into a wall adjoining it, a stable and solidly formed corner area can be created with the wall section additionally arranged thereon become. Due to the fact that the at least one wall section protrudes in the direction of the adjoining wall and an intermediate structure arranged without interruption is formed as an insulating layer, a cold bridge can be prevented here. Because the at least one wall section also has the same structure structure as the respective wall connected thereto, a more stable connection section can be created in the at least one wall section. Thus, the at least one connecting section is now laid away from the corner area or impact area having a smaller connecting surface between adjacent walls. Furthermore, the complete enveloping of the intermediate structures prevents liquid from entering into them.

Also advantageous is a further embodiment according to claim 4, since so a continuous and firmly cohesive inner structure and outer structure in the corner between the respective wall and the at least one wall portion arranged thereon can be created. As a result, joints can be avoided in the immediate corner area, which in addition still the inherent strength and rigidity of the entire transport container can be increased. As a result of the projection of the longitudinal end face of sections of the outer structure formed on the at least one wall section as well as of the inner structure, a blunt connection seam between the inner structure and the outer structure can thus be avoided. In addition, by the longitudinal end face protruding portions but also the area ratio of the connecting portions can be increased, whereby even during the transport movement acting on the transport container torsions can be better absorbed and supported.

Furthermore, an embodiment according to claim 5 is advantageous, since in this way a mutual connection between the outer structure and the inner structure in the area of their sections projecting beyond the intermediate structure can be created over a larger surface area. As a result of the enlargement of the connecting surface, however, an entry of liquid between them into the intermediate structure can thus be avoided even when forces act.

The embodiment according to claim 6 makes it possible to achieve a simple overlapping or overlapping of intermediate structures facing one another in the region of the connecting sections. As a result, cold bridges can be reduced or even avoided.

According to another embodiment according to claim 7 as a perfect connection in the area of facing each other connecting sections is created and also achieved a better thermal insulation.

A development according to claim 8 is also advantageous, since a secure closure of the intermediate structure arranged between the inner structure and the outer structure can thus also be achieved in the region of the wall adjoining the at least one wall section. By connecting the sections that project beyond the intermediate structure, it is thus possible to reliably avoid the penetration of liquid or moisture into the intermediate structure and, moreover, the available connection area in the area of the mutually facing connection sections can be increased.

In the embodiment according to claim 9, it is advantageous that in the area of the mutually facing connection sections an approximately constant total wall thickness of the individual walls to be joined can nevertheless be maintained.

The development according to claim 10 ensures that so in the area of the mutually facing connecting portions cold bridges can be largely avoided, so as to ensure a sufficient insulation effect for the stored medium in the receiving space can.

Due to the design according to claim 11 can be seen over the cross section of the transport container, a circumferentially continuous, stable container structure can be created.

Also advantageous is an embodiment according to claim 12, as such a sudden decrease in the wall thickness in the region of the ends of the wall sections can be avoided and so a more stable design of the transport container can be achieved. In addition, but also tolerances can be better compensated and beyond the connecting surface of the mutually facing connecting portions are also increased.

According to an embodiment as described in claim 13, an improved and enlarged bearing surface or supporting surface of the bottom wall can be achieved on the at least one wall section.

In this case, an embodiment according to claim 14 proves advantageous because thereby also in the connection region of the roof wall, the support of the same can be simplified on the at least one wall section and improved.

According to an advantageous embodiment according to claim 15, the possibility is thus created to achieve a planar transition between the wall sections and the adjoining walls.

Of advantage, however, is an embodiment according to claim 16, as such a perfect and permanent connection between individual walls to be joined together can be created, which can be made simpler by the displacement directly from the corner or transition area in one of the adjoining walls and so that the overall strength and rigidity of the entire transport container can be significantly increased. This also over a longer period, since the transport container during its movement occurring torsions or deformations itself must absorb.

According to claim 17, the forces acting or to be absorbed on the transport container are already absorbed by its internal structure, whereby the intermediate structure and the outer structure only serve to a greater extent the insulation of the entire transport container or the protection of the intermediate structure.

Of advantage, however, is an embodiment according to claim 18, since the possibility is created, first to assemble the bottom wall with the walls surrounding this circumferentially, whereby the entire receiving space can be entered for assembly purposes without the subdivision by partitions unhindered for now. Thus, a relatively large-scale workplace for the mutual connection of the walls arranged around the bottom wall is available over a longer period of time. If these are connected to one another for the most part, the partitions can be introduced individually or ready as prefabricated framework into the receiving space and connected there to the walls, in particular the flanges protruding therefrom. Only at the very end of the roof wall is placed and turned over for further connection operations of the transport container, so that the bottom wall is on the top side. Thus, the laminating and bonding operations can be done again in ground-level position and not over head.

In the embodiment according to claim 19, a force can thus be applied directly to the load-bearing internal structure through the partition walls provided in the receiving space. As a result, the intermediate structure and / or outer structure is not exposed to excessive force effects and destruction of the same avoided.

The object of the invention is, however, independently by a method for producing a self-supporting transport container in modular design according to the solved in claim 20 specified characteristics. The advantages resulting from the combination of features of this claim are that each of the individual walls can be produced in their entire structure in one operation, whereby an even better cohesion of the individual structures with each other can be achieved. Thus, in turn, a full wrapping of the intermediate structure is made possible with additional creation of connecting sections. Since here in a longitudinal edge region of one of the walls, the angularly oriented and projecting over the inner structure of the respective adjacent wall sections and the holding approach or support formed thereof so full enveloping the intermediate structure can be achieved and subsequently also a permanently liquid-tight connection between be created the walls to be joined. Due to the protruding holding approach, an additional form-fitting supporting action of the wall supported thereon can thus also be achieved.

The additional arrangement or provision of at least one wall section on at least one longitudinal edge of one of the walls, as described in claim 21, so the position or position of the connecting portions of the direct corner or transition region between each of the walls in the adjoining wall to be relocated. As a result, cold bridges can be avoided in the corner region, which additionally by the displacement of the connecting sections in one of the walls, an even more stable and larger in area connection section can be created as in the immediate corner.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

Fig. 1

einen selbsttragenden Transportbehälter in Modulbauweise, in schaubildlich vereinfachter Darstellung;

Fig. 2

einen Eckbereich des Transportbehälters nach Fig. 1 zwischen der Seitenwand und der Dachwand, in Ansicht geschnitten;

Fig. 3

einen weiteren Eckbereich des Transportbehälters nach Fig. 1 zwischen der Seitenwand und der Bodenwand, in Ansicht geschnitten;

Fig. 4

einen anderen, jedoch nicht vom Schutzumfang umfassten Eckbereich des Transportbehälters nach Fig. 1 zwischen der Stirnwand und der Dachwand, in Seitenansicht geschnitten;

Fig. 5

einen nicht vom Schutzumfang umfassten Teilbereich eines weiteren, Transportbehälters in Ansicht geschnitten, bei welchem auf einer tragenden Innenstruktur eine Dämmstruktur aufgebracht ist;

Fig. 6

eine andere mögliche Ausbildung eines Eckbereichs des Transportbehälters zwischen der Stirnwand und der Dachwand, in Seitenansicht geschnitten.

In each case, in a highly simplified, schematic representation:

Fig. 1

a self-supporting transport container in modular design, in a simplified schematic representation;

Fig. 2

a corner of the transport container after Fig. 1 between the side wall and the roof wall, cut in view;

Fig. 3

another corner of the transport container after Fig. 1 between the side wall and the bottom wall, cut in view;

Fig. 4

another, but not covered by the scope of the corner of the transport container after Fig. 1 between the front wall and the roof wall, cut in side view;

Fig. 5

a section of another, transport container not covered by the scope of protection cut in view in which an insulating structure is applied to a supporting inner structure;

Fig. 6

another possible formation of a corner region of the transport container between the end wall and the roof wall, cut in side view.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.

In the Fig. 1 to 4 is a self-supporting transport container 1 shown in modular design, which is formed in the present embodiment of side walls 2, 3, a front and rear end wall 4, 5, a bottom wall 6 and a roof wall 7 or composed of these into a unit. By modular construction is understood here that each of the individual walls is made separately for themselves and then assembled the individual walls to the transport container 1 and also connected to each other liquid-tight. However, it would also be possible for reasons of production or the size of the component of the individual walls 2 to 7 to produce individual parts thereof in a split design and to assemble them during assembly of the transport container 1 only to a common wall.

The transport container 1 preferably serves to be supported and held on a vehicle, in particular a fire-fighting vehicle, a municipal vehicle or a rail vehicle. Thus, the transport container 1 can serve as a water and / or extinguishing agent tank or even for receiving powdered media. Under self-supporting training is understood in which the entire transport container 1 is constructed so far torsion stiff that it retains completely filled with the recorded and transported medium even with a distortion of the chassis frame with respect to this approximately its undeformed initial length or starting position , For a corresponding balance is to provide between the chassis frame and the transport container 1 due to the distortion.
The transport container 1 may have in the region of its roof wall 7 one or more flanges and / or manholes, which are closed during the transport of particular liquid media with a lid. For maintenance or cleaning purposes the lid can be removed so that the transport container 1 can be committed from the inside. As this is well known, it will not be discussed in more detail here.

In the following, it is generally spoken of walls, but then also referred to the possible embodiment shown. It should be noted that the embodiments described below for the different design and arrangement of the corner joints between the individual walls can be combined with each other as desired and can be used in all adjoining walls.

The individual walls 2 to 7 are in each case liquid-tightly against mutually facing joints at mutually facing connecting sections 8, 9; 10, 11 composed, wherein of the walls 2 to 7 a receiving space 12 is bounded. In the area of the bottom wall 6 is also shown in simplified form that the transport container 1 seen in cross-section trapezoidal trained and spaced apart from each other in the vertical direction with respect to the side walls 2, 3 arranged runners shaped projections. These serve, as already described above, for supporting and optionally fastening the transport container 1 to the chassis frame, not shown, of the transport vehicle. Since the transport container 1 is constructed on a transport vehicle, it is also possible to speak of a mobile transport container 1.

If the transport container 1 is used, for example, as a water tank, the risk of freezing and thus solidification of the water can exist at permanently low temperatures below 0 ° C. This is especially true when the transport container 1 is used in areas with low temperatures far below 0 ° C. In such applications, own tempering or even heat exchangers within the transport container 1 have been arranged so as to keep the water at a minimum temperature in order to prevent freezing. By freezing not only damage to the transport container 1 may occur, but it would be in case of emergency for extinguishing purposes, no water or foam extinguishing available.

Therefore, it is provided in this transport container 1 shown here that a large number of the walls 2 to 7 has a multilayer structure structure, as described below in the Fig. 2 to 4 will be described in more detail. Under a predominant Proportion is understood here that the multi-layer structure structure is used wherever it is possible for structural and / or strength-technical reasons.

By way of introduction, it should also be mentioned that the multi-layer structure structure can be provided for each of the individual walls 2 to 7, but for individual sections, in particular where bearing connection and / or connection components of the transport container 1 are provided, for example, on the arrangement or The provision of the intermediate structure 15 is dispensed with.

In the Fig. 2 is a possible multi-layer structure structure in the upper joint area or corner region between the side wall 2 and the roof wall 7 in section and an enlarged view. In this embodiment shown here, both the side wall 2 and the roof wall 7 on the multi-layer structure structure.

Considering now the structure structure starting from the receiving space 12 towards the outside of the transport container 1, the structure structure comprises on the inside the inner structure 13 and at a distance thereof an outer structure 14. Between the inner structure 13 and the outer structure 14 arranged therefrom is an intermediate structure 15 intended. It should be noted that the intermediate structure 15 is provided as an insulating material so as to reduce the heat transfer coefficient and thus to achieve a better thermal insulation for the stored in the receiving space 12 medium, especially the water. The intermediate structure 15 is preferably formed plate-shaped, which can also be spoken here of insulating. As a material for forming the intermediate structure 15, for example, polyurethane, PVC, polystyrene or a similar plastic material or other insulation materials may be used. A thickness of the intermediate structure 15 is selected depending on the heat transfer coefficient to be achieved. For example, the thickness or thickness of the intermediate structure 15 may be between 20 mm and 100 mm, preferably between 30 mm and 50 mm.

To just in the joint area and / or connecting region between the walls 2 to 7 due to the modular wall construction sufficient strength between the individual connecting portions 8, 9 and 10, 11 even with a sufficient insulating effect of To achieve intermediate structure 15, it is provided here that at least one longitudinal edge 16, 17 of one of the walls 2 to 7, an additional wall portion 18, 19 is arranged thereon.

Each inner structure 13 of one of the walls 2 to 7 - in the present embodiment, the side wall 2 shown here - defined at the receiving space 12 facing inside of the inner structure 13 a base plane 20. The at least one wall section 18, 19 is angularly aligned with respect to the base plane 20 and surmounts this on the side facing away from the outer structure 14 side. Furthermore, the at least one wall section 18, 19 has a relative to the adjoining wall 2 to 7 - in the present embodiment, the roof wall 7 - with respect to this parallel alignment.

The here the roof wall 7 facing wall portion 18 has the first connecting portion 8 and the other wall portion 19, which is the bottom wall 6 is facing, the first connecting portion 10. It should be mentioned that only one of the wall sections 18, 19 can be provided either in the region of the roof wall 7 or in the region of the bottom wall 6. However, the two wall sections 18, 19 are preferably provided on the side walls 2, 3. In this case, here the wall section 18 is provided on the longitudinal edge 16 facing the roof wall 7 and the further wall section 19 is provided on the longitudinal edge 17 facing the bottom wall 6.

Both formed on the wall sections 18, 19 first connecting portions 8, 10 are approximately formed starting from the base plane 20 at each of the wall sections 18, 19. In this case, the roof wall 7 is supported with its connecting portion 8 on the side facing away from the receiving space 12 side of the wall portion 18 and its connecting portion 9 from.

The at least one wall section 18 and / or 19, in turn, also has the multi-layer structure structure, as has been previously described. Since the structural structure of the at least one wall section 18, 19 is selected to be approximately the same as in one of the walls 2 to 7, the same reference numerals are used here as well. However, there may be differences in the thickness or thickness and / or the layer structure of the structures forming the structure structure.

In the region of the receiving space 12, the wall section 18, 19 comprises the inner structure 13 and the outer structure 14, which is arranged at a distance therefrom on the side facing away from the receiving space 12. Between the inner structure 13 and the outer structure 14, the intermediate structure 15 is arranged. In this case, the intermediate structure 15 of the at least one wall section 18, 19 is in direct contact with the intermediate structure 15 of the respective wall 2 to 7 - in the present embodiment, the side wall 2. Since the further side wall 3 is formed in mirror image with respect to the side wall 2 described in more detail, is on a detailed description of the same is dispensed with, wherein the arrangement of the here left side wall 2 analogously to the other, right side wall 3 for the formation or arrangement of the at least one wall portion 18, 19 is transmitted.

Since the intermediate structure 15 of the at least one wall section 18, 19 is in direct contact and thus immediately adjacent to the intermediate structure 15 of the side wall 2 shown here, in the direct corner region or transition region between the side wall 2 and the roof wall 7 and / or the bottom wall 6 no cold bridge present, since the intermediate structure 15 is arranged continuously and thus uninterrupted or formed.

The outer structure 14 may also be referred to as the outer lining of the transport container 1, wherein this in turn may also have a multilayer or multi-layer structure. As the outermost layer or layer, for example, a so-called gelcoat can be used, which is also referred to as a hardcoat. This outer layer can also be referred to as a protective layer, which itself may be colored or provided with an additional color layer. For the further layer or layer structure, the most diverse mats or fabric layers can be used, which are held together by a curable plastic material, in particular a polyester resin or the like., To a matching layer structure and form a compact layer.

The inner structure 13 may in turn also have a multilayer or multilayer construction of a variety of mats or fabrics, which are embedded for reinforcement in the plastic material, in particular the polyester resin. Since the inner structure 13 of at least some of the walls 2 to 7 is preferably formed by a multilayer laminate structure, the inner structure 13 predominantly forms a self-supporting support unit of the transport container 1. To the load capacity and / or inherent rigidity To increase the inner structure 13 still further, the multi-layer laminate structure may have a central layer, which is embedded as a spacer element in the laminate structure. The middle layer may also be referred to as a structural mat which is sold under the trade name COREMAT®. Furthermore, the middle layer may have a multiplicity of penetrations or openings passing through them in order to achieve a better cohesion of the laminate layers arranged on both sides and their plastic material.

This could basically with the inner structure 13 alone to achieve sufficient strength or carrying capacity of the transport container 1 Auslangen be found. However, in order to keep the heat transfer coefficient of the individual walls 2 to 7 as low as possible, the intermediate structure 15 is provided on the side facing away from the receiving space 12 side of the inner structure 13 at least a predominant area proportion of the entire transport container 1. In order to achieve a protection of the intermediate structure 15 at its side facing away from the receiving space 12 side, the outer structure 14 is additionally provided, which covers the intermediate structure and preferably fully envelops and encloses it.

Since, for the purpose of forming the transport container 1, this is formed and composed of the walls 2 to 7, each of which has previously been formed for itself, the connection sections 8 and / or 10 described above must be provided on at least one of the wall sections 18 and / or 19.

By providing the at least one wall section 18, 19 projecting beyond the base plane 20, the connecting section 8 and / or 10 is displaced from the direct corner or transitional area between the walls 2 to 7 into the planar region of one of the walls 2 to 7.

How better of the Fig. 2 and 3 can be seen, both the inner structure 13 and the outer structure 14 is continuously formed by the wall 2 to 7 - in the present embodiment, the side wall 2 - extending over the at least one arranged on the wall 2 to 7 wall portion 18 and / or 19 extending. The at least one wall section 18 and / or 19 has a longitudinal end face in each case on its side remote from the base plane 20 21, 22 on the intermediate structure 15. Furthermore, it is provided here that a section 23 of the inner structure 13 and also a section 24 of the outer structure 14 project beyond the longitudinal end face 21 and / or 22 of the intermediate structure 15 of the at least one wall section 18, 19 arranged at a distance from the side wall 2 shown here.

Since the entire structure structure of the walls 2 to 7 is preferably produced in a so-called wet process, a dividing line between the two sections 23, 24 is shown in dashed lines, but the two sections 23, 24 on the mutually facing sides or surfaces in a Contact portion are connected to each other and after curing of the plastic material form a single or common associated component.

Furthermore, it can be seen here that the longitudinal end face 21, 22 of the intermediate structure 15 of the at least one wall section 18, 19 projecting portions 23, 24 of the inner structure 13 and the outer structure 14 are aligned parallel to each other, wherein the mutual, tight connection of the two sections 23, 24 takes place in the mutually facing contact portion.

Each of the longitudinal end faces 21, 22 of the intermediate structure 15 of the at least one wall section 18, 19 shown here has an obliquely aligned cross-section.

In the present exemplary embodiment, the wall section 18, 19 projecting beyond it is arranged or formed on each of the side walls 2, 3 with the respectively first connecting sections 8, 10. The adjoining wall - in the present embodiment, the roof wall 7 and or the bottom wall 6 - have the respect to the first connecting portion 8, 10 to the same design, another connecting portion 9, 11.

In order to achieve a sealing completion of the intermediate structure 15 in the area of the walls 2 to 7 adjoining the respective wall section 18 and / or 19-in the present exemplary embodiment the roof wall 7 and / or the bottom wall 6-the respective intermediate structure 15 is of a section 25 of the inner structure 13 and a portion 26 of the outer structure 14 in the direction of the base plane 20 surmounted. Again, the two are Sections 25, 26 aligned parallel to each other and tightly connected together in another contact portion, as has already been described above in the two sections 23 and 24.

To achieve an approximately equal wall thickness of the individual walls 2 to 7, in particular in the region of the mutually facing connecting sections 8, 9; 10, 11 can also be provided that the wall thickness of the intermediate structure 15 of the wall portion 18 and / or 19 and the intermediate structure 15 of the immediately adjacent wall 2 to 7 is smaller than the wall thickness of the outside of the connecting portions 8, 9; 10; 11 arranged intermediate structures 15th

As already described above, the longitudinal end faces 21 and / or 22, seen in cross section with respect to the longitudinal extent of the intermediate structure 15, have an inclined orientation. Since the mutually facing connecting portions 8, 9; 10, 11 are formed opposite to each other, overlap a first end portion of the intermediate structure 15 of the wall portion 18 and / or 19 with a further end portion of the intermediate structure 15 of the adjoining wall. In the present case, this is the roof wall 7 and / or the bottom wall 6.

Furthermore, is still from a synopsis of Fig. 2 and 3 It can be seen that both longitudinal end faces 21, 22 of the intermediate structures 15 of the bottom wall 6 and the roof wall 7 facing wall sections 18, 19 inclined starting from the roof wall 7 in the direction of the bottom wall 6 are aligned. Thus, a downwardly disposed alignment is achieved, in which, in an upright, approximately vertically aligned side wall 2, 3, the two longitudinal end faces 21, 22 with increasing distance from the roof wall 7 further protrude beyond the base plane 20.

How better of the Fig. 3 is to be seen, in contrast to the training in the Fig. 2 Here, the outer structure 14 of the at least one arranged on the side wall 2 wall portion 18, 19 - in the present embodiment of the wall portion 19 - in the region of the adjoining bottom wall 6 planar extending running. This makes it possible, as soon as at least one of the two side walls 2 and / or 3 is erected for the assembly of the transport container 1, the bottom wall 6 supporting on the wall sections 19 hang up. The inner structure 13 has on the side facing away from the side wall 2 side a stepwise sloping course. Thus, the bottom wall 6 is supported with its connecting portion 11 on the receiving space 12 facing side of the wall portion 19 on its connecting portion 10 from.

In contrast, as is clear from the Fig. 2 it can be seen, the inner structure 13 of the at least one arranged on the side wall 2 wall portion 18, 19 - in the present embodiment of the wall portion 18 - in the region of the adjoining roof wall 7 planar extending running. Here, the outer structure 14 on the side facing away from the side wall 2 side sloping course.

Due to the two step-shaped or step-shaped wall sections 18, 19 in the region of the roof wall 7 facing side, it is also possible, the roof wall 7 at the end of assembly of the transport container 1 on the side walls 2, 3 and optionally the two end walls 4, 5 in kind put on a lid and be able to support it.

As previously described and in the Fig. 2 and 3 illustrated, the two sections 23 and 24 respectively project beyond the intermediate structure 15 of the at least one wall portion 18, 19 on the side facing away from the base planes 20 side. In order here to achieve a planar transition to the adjoining wall - in the present embodiment, the roof wall 7 and / or the bottom wall 6 - is still provided here that the respective further connecting portion 9, 11 in the region of the roof wall 7 and / or Bottom wall 6 has a recess 27 and / or 28 for the intermediate structure 15 of the at least one wall portion 18, 19 projecting portions 23, 24 of the inner structure 13 and the outer structure 14.

Are the individual walls 2 to 7 erected or assembled so far that the mutual connection between the individual wall elements can be done, is still in the Fig. 2 in the area of the receiving space 12 facing the inside of the inner structure 13 shown that in the area of the mutually facing connecting portions 8, 9 of the at least one wall portion 18 and the adjoining wall - in the present case, the roof wall 7 - to their mutual connection in the formed therebetween Gap is a cohesive connection means is introduced. Furthermore, here is still different Long lines shown simplified that partially on the inner structure 13 of the at least one wall portion 18 and the adjoining wall - namely the roof wall 7 - an additional structural element 29 is arranged and fixed. The structural element 29 can likewise be formed by a plurality of layers or mats impregnated with a curable synthetic material, in particular polyester resin.

The formed between the side wall 2 and the end of the two sections 25 and 26 of the roof wall 7 gap can be filled, for example, by a permanently elastic sealant.

In the Fig. 3 is still shown that the intermediate structure 15 of the bottom wall 6 projecting portions 25, 26 extend into the region of the inner structure 13 of the side wall 2 and the base plane 20 formed thereby. Again, an additional structural element 29 is provided or arranged in the inner corner region, which is attached to the two inner structures 13 of both the side wall 2 and the bottom wall 6. This additional structural element 29 may in turn also be formed by a plurality of layers or layers of mats or fabrics which are embedded in the plastic material. In this connection process can also be a lamination of the joints or the connecting portions 8, 9; 10, 11 are spoken. Between the two connecting portions 10, 11 and the cohesive connecting means may be introduced.

In order to increase the stability and inherent rigidity of the transport container 1 as well as to dampen or prevent any surge of the receiving medium 12, preferably liquid medium, in particular of the water, the receiving space 12 delimited by the walls 2 to 7 of several may extend at least between them Side walls 2, 3 and / or the front and / or rear end wall 4, 5 extend partition walls 30 may be divided. The partitions 30 may also extend continuously between the bottom wall 6 and the roof wall 7 and possibly also be connected to these. A subsection of the same is in the Fig. 2 and 3 shown. In this case, the partition walls 30 are each connected in their connection region on the walls 2 to 7 with their supporting inner structure 13 formed. This makes it possible to divide the receiving space 12 into individual receiving sections and in addition to increase the overall strength of the transport container 1. The connection of the individual partitions 30 with the walls 2 to 7 can also be done by the previously described structural elements 29 in a subsequent connection process.

When assembling the individual walls 2 to 7, e.g. The procedure is such that the all-round adjoining side walls 2, 3 and the two end walls 4, 5 are connected to the bottom wall 6 and connected to one another at the connection sections provided for this purpose. In this case, all possible and described here connecting sections between the individual walls 2 to 7 can be selected as needed. Thus, the placement of the roof wall 7 is still missing. Before this attachment, the at least one separating wall 30 is also inserted into the receiving space 12, although preferably several of these can be used. In this case, several of the partitions 30 could already be assembled in advance and connected to a skeleton, which is then introduced from above into the receiving space 12.

Furthermore, it would be possible for the connection of at least one of the partitions 30 to the respective inner structure of the wall 2 to 7 that at least one of the walls 2 to 7 is arranged on the inner structure 13 of at least one projecting in the direction of the receiving space 12 web-shaped flange 42, which Flange 42 is formed by the inner structure 13 with. One of these flanges 42 is in the Fig. 2 indicated by dashed lines. Under molded with is understood that the or the flanges 42 is formed in the course of the formation of the inner structure 13 in the not yet cured state of the plastic material and the reinforcing layers embedded therein equal to or be.

The partition wall 30 to be connected therewith may be e.g. first via a frictional connection, such as a screw or rivet, preferably connected to the flange 42 several times and then overlaminated with an additional structural element 29.

To increase the inherent rigidity of the individual walls 2 to 7 is still in the Fig. 2 and 3 shown in the region of the side wall 2, that on the inner structure 13 reinforcing elements 31 may be arranged or attached thereto. This is well known, wherein the reinforcing elements 31 also subsequently applied to the inner structure 13 and attached thereto can be. This can be done, for example, with a separate lamination process and the provision of additional structural elements 29.

In the Fig. 4 is a possible further, but not included in the scope encompassed connection arrangement between the roof wall 7 and the rear end wall 5, this embodiment can also find application between other walls.

The structural structure of the two walls 5, 7 is chosen to be the same, as described above, and in each case comprises the inner structure 13, the outer structure 14 and the interposed intermediate structure 15. In the embodiment shown here, the two intermediate structures 15 of the rear end wall 5 and overlap the roof wall 7 not. In this exemplary embodiment as well, both the inner structure 13 and the outer structure 14 project beyond the intermediate structures 15 and enclose them between them in a sealing manner.

In the roof wall 7, a first portion 32 of the inner structure 13 projects beyond the roof wall 7 in an angular orientation thereto. The outer structure 14 surrounds an end face 33 of the intermediate structure 15 and also projects in an angular orientation with respect to the roof wall 7, in particular its intermediate structure 15 via this in parallel alignment with respect to the rear end wall 5. Thus, the outer structure 14 on the further portion 34, which is sealingly connected to the first portion 32 in a first contact portion. The two sections 32 and 34 projecting beyond the intermediate structure 15 form the first connecting section 8.

If one now considers the rear end wall 5, the intermediate structure 15 of the rear end wall 5 ends in the region of the ends of the two sections 32, 34 of the roof wall 7 facing away from the intermediate structure 15 of the roof wall 7.

Again, the intermediate structure 15 of the rear end wall 5 is wrapped on all sides by the inner structure 13 and the outer structure 14, wherein the intermediate structure 15 of the rear end wall 5 on its roof wall 7 facing side of sections 35, 36 is surmounted. The two sections 35, 36 are also aligned parallel to the previously described sections 32, 34 of the roof wall 7. These two sections 35, 36 are in turn sealed together in their other contact sections. The two the intermediate structure 15 projecting portions 35 and 36 form the cooperating with the first connecting portion 8 second connecting portion 9.

The two sections 35, 36 of the rear end wall 5 are arranged on the receiving space 12 facing side of the two sections 32, 34 of the roof wall 7. Thus, the rear end wall 5 can be supported at a pressure load starting from the receiving space 12 at the two mutually attached sections 32, 34 of the roof wall 7.

Furthermore, the two interconnected portions 32, 34 and 35, 36 may be referred to as retaining lugs on the roof wall 7 and the rear end wall 5. For the mutual connection of the same, the previously described, material-locking connection means, in particular a plastic adhesive, can be introduced between them. In the region of the receiving space 12, the structural element 29, which has already been described above, can again be arranged and fastened in the corner or transition area between the rear end wall 5 and the roof wall 7.

This training described here between the roof wall 7 and the rear end wall 5 but could also between the roof wall 7 and the front end wall 4 and optionally between at least one of the end walls 4, 5 and the bottom wall 6, between the side walls 2 and / or 3 and the bottom wall 6 or the roof wall 7 and also optionally between the side walls 2 and / or 3 and at least one of the end walls 4, 5 may be provided.

As already described, the individual walls 2 to 7 can be produced independently of each other and then assembled or combined to form the transport container 1.

The above-described layer or structure structure of the individual walls 2 to 7 with the inner structure 13, the outer structure 14 and the intermediate structure 15 arranged therebetween can be carried out in a first embodiment or in a first procedure in a so-called wet process. In this case, all layers or layers for forming the entire structure structure, for example, in or on a mold in succession inserted and coated in each case with the plastic material, which is cured and solidified after placing or attaching the entire structure structure.

Independently of this, however, the structure structure could also be produced in a so-called infusion method for each of the individual walls 2 to 7. In this case, the entire layer or layer structure is arranged one above the other and then sucked the air therein from the component. For this purpose, for example, be placed on the surface of a film, wherein then the plastic material or resin is initiated in the evacuated interior.

If the so-called wet process is used, the structure structure is produced starting with the outer structure, then with the intermediate structure and then the inner structure. The direct arrangement of the intermediate structure 15 on the not yet cured outer structure 14 has the advantage that a flat contact and thus continuous connection surface between the intermediate structure 15 and the outer structure 14 can be produced. In the construction of the structure structure, at least one longitudinal edge 16, 17 of one of the walls 2 to 7 of the at least one wall section 18, 19 is arranged. The at least one wall section 18, 19 is aligned in such a way that a base plane 20 defined by the inner structure 13 of the wall 2 to 7 is projected at an angle with respect to the base plane 20. In order to achieve a planar transition of the at least one wall section 18, 19 with the adjoining wall 2 to 7, this is aligned with a with respect to the at least one wall section 18, 19 subsequently arranged wall 2 to 7 parallel alignment.

It is also the at least one wall portion 18, 19 formed with the multi-layer structure structure comprising the inner structure 13, the outer structure 14 and arranged between the inner structure 13 and the outer structure 14 intermediate structure. Furthermore, the intermediate structure 15 of the at least one wall section 18, 19 is brought into direct contact with the intermediate structure 15 of the respective wall 2 to 7. As a result, starting from the intermediate structure 15 of the respective wall 2 to 7, a continuously continuous insulating element is also provided in the region of the at least one wall section 18, 19, wherein on the one hand the inner structure 13 and the outer structure 14 envelop the entire intermediate structure 15 also beyond its edge region and the intermediate structure 15 tower over. In the individual the intermediate structure 15 superior portions of the inner structure 13 and the outer structure 14, these are sealingly connected to each other, thereby penetrating into each of the individual wall elements, in particular the side walls 2, 3, the two end walls 4, 5, the bottom wall 6 and Roof wall 7 is prevented. These sections projecting beyond the intermediate structures 15 can furthermore also serve as mutual connecting elements and / or supporting elements between the individual walls 2 to 7 during their construction and / or after their mutual connection to each other.

In the Fig. 5 is another, but not included in the scope of protection embodiment of the transport container 1 shown, again for like parts, the same reference numerals or component names as in the previous Fig. 1 to 4 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1 to 4 referred or referred.

Also, this transport container 1 shown here is designed as a self-supporting transport container in modular design and differs from the previously in the Fig. 1 to 4 described embodiment in that the individual walls forming the walls 2 to 7 are not provided directly with the production of the insulating intermediate structure 15, but at first only the supporting inner structure 13 is made or formed by the individual walls 2 to 7. The assembly or joining of the individual walls 2 to 7 is carried out in each case only with their supporting inner structure 13. To increase the stability or inherent rigidity of the transport container 1, in particular its self-supporting inner structure 13 and optionally also a surge in the receiving space 12 to dampen or to avoid at all, the receiving space 12 delimited by the walls 2 to 7 of a plurality of at least between the side walls 2, 3 and / or the front and / or rear end wall 4, 5 extending partitions 30th be divided. Furthermore, the partitions 30 may also extend continuously between the bottom wall 6 and the roof wall 7. The individual partitions 30 may each be connected in the connection region thereof to the respective walls 2 to 7 with their supporting inner structure 13. This is already in the Fig. 1 to 4 have been described can be done analogously.

In the production of this transport container 1 shown here, the individual load-bearing internal structures 13 of the individual walls 2 to 7 are each first produced individually. Subsequently, the walls 2 to 7 are assembled and liquid-tightly connected to each other at the designated connecting portions.

In order to achieve a lower heat transfer coefficient in the region of the individual walls 2 to 7, it is also provided here that a predominant area proportion of the individual walls 2 to 7 is provided with an insulating structure 38 at their outer surfaces 37 facing away from the receiving space 12. In this case, the same reference numeral 37 is used for all outer surfaces of the individual walls 2 to 7. The same applies, however, to the insulating structures 38 arranged on the individual outer surfaces 37. The insulating structure 38 is preferably plate-shaped and may be formed of the same materials as previously described for the intermediate structure 15. The preferred plate-shaped elements for forming the insulating structure 38 may preferably be formed even single-layered or multi-layered. For example, it would be possible for the insulating structure 38 to comprise, in its core or middle layer, an insulating plate formed from a plastic material, which is covered by a covering layer 40 on at least one of its insulating structural surfaces 39.

For example, the outer structure 14 described above could be used as cover layer 40. However, it would also be possible independently to form the cover layer 40, for example, from a metallic material, a thin plastic plate, a carrier foil or the like. If a metallic material is used, it may be formed from a light metal, such as aluminum or even from a ferrous material, such as a stainless sheet or the like.

It would also be possible, however, to arrange or provide a separate covering layer 40 on both sides of the insulating structure 38 on their insulating structural surfaces 39.

The individual insulating structure elements forming the insulating structure 38 are preferably fastened to the respective outer surface 37 of the individual walls 2 to 7. This can be done for example via a cohesive connection. Here you can use a wide variety of adhesives or bonding agents.

In order also in the corner or transition region between the individual walls 2 to 7 to achieve a complete closure or a cover of the insulating structure 38, in particular when open cut edges or end edges are present, the corner region on the outside of its own, preferably angled trained, cover 41 may be covered. The covering element or the covering elements 41 could then be dispensed with, if the insulating structure 38 itself is e.g. Also in the area of individual whose end faces of the cover layer 40 is already covered.

Again this one in the Fig. 5 described, but not encompassed by the scope of construction of the transport container 1 allows a modular structure of the individual walls 2 to 7, wherein the receiving space 12 protective insulating structure 38 applied only in a subsequent operation of the previously prepared and assembled inner structure 13 in a kind of cladding process and it is attached.

In the Fig. 6 is a further and possibly independent embodiment of the transport container 1 is shown, again for like parts, the same reference numerals or component names as in the preceding Fig. 1 to 5 be used. In order to avoid unnecessary repetition, the detailed description in the previous ones will be used Fig. 1 to 5 referred or referred. This is an embodiment variant for the formation of a corner or transition region between individual walls 2 to 7, as previously described in US Pat Fig. 4 has been described.

To the in the Fig. 4 small proportion in the corner between the roof wall 7 shown there and the rear end wall 5 to be provided with an insulation and thus to avoid this low cold bridge, a further embodiment is described below.

The formation of the roof wall 7 shown here as an example is analogous to that in the Fig. 4 selected embodiment selected. The structure of the two walls 5, 7 is chosen the same, as described above, and includes in each case the inner structure 13, the outer structure 14 and the interposed intermediate structure 15. Also in this embodiment Both the inner structure 13 and the outer structure 14 project beyond the intermediate structures 15 and enclose them between them in a sealing manner.

In the roof wall 7, the first portion 32 of the inner structure 13 projects beyond the roof wall 7 in an angular orientation thereto. The outer structure 14 surrounds the end face 33 of the intermediate structure 15 and also protrudes in an angular orientation with respect to the roof wall 7, in particular its intermediate structure 15 via this in parallel alignment with respect to the rear end wall 5. Thus, the outer structure 14 has the further section 34, which in turn is sealingly connected to the first section 32 in the first contact section. The two sections 32 and 34 projecting beyond the intermediate structure 15 here form the first connecting section 8.

If one now considers the rear end wall 5 shown here, the intermediate structure 15 of the rear end wall 5 extends close to or directly against the inner structure 13 of the roof wall 7 or the base plane 20 defined by it. For receiving the two sections 32, 34 of the roof wall 7 on the side facing away from the receiving space 12 outside of the end wall 5, the intermediate structure 15 of the end wall 5 at its longitudinal edge 43 an external exemption 44. Thus, the intermediate structure 15 in its here the roof wall 7 facing longitudinal edge 43 with respect to the adjacent thereto intermediate structure 15 of the end wall 5 to a lower wall thicknesses.

The inner structure 13 extends up to an end face 45 of the intermediate structure 15 with the reduced wall thickness and then extends at an angle and in a parallel direction with respect to the base plane 20 defined by the inner structure 13 in the direction of the receiving space 12 and forms the portion 35 projecting beyond the intermediate structure 15 ,

The outer structure 14 engages over the end face 45 of the intermediate structure 15 with the reduced wall thickness and also protrudes in the direction parallel to the base plane defined by the inner structure 13 via the intermediate structure 15 in the direction of the receiving space 12. The two sections 35, 36 of the rear end wall 5 protrude in the direction of the receiving space 12 and are in turn sealingly connected to each other in the other contact portions.

The two in the direction of the end wall 5 projecting portions 32, 34 form a holding or support approach, at which here the end wall 5 is supported on the receiving space 12 facing side. This is achieved to a minimum thermal bridge due to the wall thickness of the inner structure 13 and the outer structures 14 a nearly continuous thermal insulation.
In the region of the receiving space 12, the structural element 29, which has already been described above, can again be arranged and fastened in the corner or transition area between the rear end wall 5 and the roof wall 7.
This training described here between the roof wall 7 and the rear end wall 5 but could also between the roof wall 7 and the front end wall 4 and optionally between at least one of the end walls 4, 5 and the bottom wall 6, between the side walls 2 and / or 3 and the bottom wall 6 or the roof wall 7 and also optionally between the side walls 2 and / or 3 and at least one of the end walls 4, 5 may be provided.
Finally, it should also be noted that the individual components or individual elements of the walls 2 to 7, each shown in section or cross-section, always have a longitudinal extent in the direction of the walls 2 to 7. Preferably, the individual connecting portions extend over the entire length and / or height and / or width of the individual walls 2 to 7. In corner areas, exemptions may be provided because of possible overlaps. It is in any case a liquid-tight design of the transport container 1 to ensure despite the additional insulation.
The embodiments show possible embodiments of the transport container 1, in particular its walls 2 to 7, it being noted at this point that the invention is not limited to the specifically illustrated embodiments but to the subject matter defined in the claims. All information on ranges of values in objective description should be understood to include these arbitrary and all sub-ranges thereof, eg the indication 1 to 10 should be understood to encompass all sub-ranges, starting from the lower limit 1 and the upper limit 10 that is, all portions begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, eg, 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.

For the sake of order, it should finally be pointed out that, for better understanding of the construction of the transport container 1, in particular its walls 2 to 7, these or their components have been shown partly unevenly and / or enlarged and / or reduced. <B> Reference Numbers </ b> 1 transport container 31 reinforcing element 2 Side wall 32 section 3 Side wall 33 face 4 bulkhead 34 section 5 bulkhead 35 section 6 bottom wall 36 section 7 roof wall 37 outer surface 8th connecting portion 38 insulating structure 9 connecting portion 39 Dämmstrukturfläche 10 connecting portion 40 topcoat 11 connecting portion 41 cover 12 accommodation space 42 flange 13 internal structure 43 longitudinal edge 14 external structure 44 exemption 15 intermediate structure 45 face 16 longitudinal edge 17 longitudinal edge 18 wall section 19 wall section 20 base level 21 Longitudinal face 22 Longitudinal face 23 section 24 section 25 section 26 section 27 recess 28 recess 29 structural element 30 partition wall

Claims (21)

1. A self-supporting transport container (1) in modular design, in particular a water tank or extinguishing agent tank for fire engines or municipal vehicles, which transport container (1) is assembled in a fluid-tight manner from side walls (2, 3), a front and an rear end wall (4, 5), a bottom wall (6) and a roof wall (7) at connection portions (8, 9; 10, 11) which face one another in each case between the individual walls (2, 3, 4, 5, 6, 7), said walls (2, 3, 4, 5, 6, 7) bordering a receiving space (12), wherein the walls (2, 3, 4, 5, 6, 7) have a multi-layered structure arrangement comprising in each case an inner structure (13), an outer structure (14) as well as an intermediate structure (15) arranged between the inner structure (13) and the outer structure (14), and the intermediate structure (15) of at least individual ones of the walls (2, 3, 4, 5, 6, 7) is enclosed on all sides by the inner structure (13) as well as the outer structure (14), wherein portions (23, 25; 32, 35) of the inner structure (13) as well as portions (24, 26; 34, 36) of the outer structure (14) of each of the walls (2, 3, 4, 5, 6, 7) facing one another protrude beyond the intermediate structure (15), and the portions (23, 24; 32, 34) of the inner structure (13) and the outer structure (14) protruding beyond a first wall (2, 3, 4, 5, 6, 7) towards a respective second wall (2, 3, 4, 5, 6, 7) are aligned at an angle with respect to a base plane (20) defined by the inner structure (13) of the first wall (2, 3, 4, 5, 6, 7) and are sealingly connected to one another in a first contact portion, and that each of the portions (23, 24; 32, 34) connected to one another of the inner structure (13) and the outer structure (14) of the first wall (2, 3, 4, 5, 6, 7) form a projecting holding lug and that the portions (25, 26; 35, 36) of the inner structure (13) and the outer structure (14) protruding beyond the second wall (2, 3, 4, 5, 6, 7) are sealingly connected to one another in a second contact portion, characterized in that a portion of the second wall (2, 3, 4, 5, 6, 7) including the inner structure (13), the intermediate structure (15) and the outer structure (14) is abuttingly supported on a side facing the receiving space (12) or on a side facing away from the receiving space (12) of the portions (23, 24; 32, 34) of the first wall (2, 3, 4, 5, 6, 7) which protrude beyond the base plane (20) and form the holding lug.
2. The transport container (1) according to claim 1, characterized in that the intermediate structure (15) of the second wall (2, 3, 4, 5, 6, 7) facing the first wall (2, 3, 4, 5, 6, 7) comes close to the inner structure (13) of the first wall (2, 3, 4, 5, 6, 7), and the intermediate structure (15) of the second wall (2, 3, 4, 5, 6, 7), on the longitudinal edge (43) thereof, has an external cutout (44) on the outer side facing away from the receiving space (12), wherein the inner structure (13) of the second wall (2, 3, 4, 5, 6, 7) extends up to an end face (45) of the intermediate structure (15) of the second wall (2, 3, 4, 5, 6, 7) and then runs at an angle and in a direction parallel with respect to base plane (20) defined by the inner structure (13) of the first wall (2, 3, 4, 5, 6, 7) towards the receiving space (12) thereby forming the portion (35) of the inner structure (13) that protrudes beyond the intermediate structure (15), and the outer structure (14) of the second wall (2, 3, 4, 5, 6, 7) engages over the end face (45) of the intermediate structure (15) of the second wall (2, 3, 4, 5, 6, 7) and likewise protrudes beyond the intermediate structure (15) of the second wall (2, 3, 4, 5, 6, 7) towards the receiving space (12) in a direction parallel with respect to the base plane (20) defined by the inner structure (13) of the first wall (2, 3, 4, 5, 6, 7).
3. The self-supporting transport container (1) according to claim 1, characterized in that at least on one longitudinal edge (16, 17) of one of the walls (2, 3, 4, 5, 6, 7) there is arranged an additional wall portion (18, 19), which at least one wall portion (18, 19) protrudes beyond the base plane (20) defined by the inner structure (13) of the first wall (2, 3, 4, 5, 6, 7) at angle with respect to the base plane (20) and has an alignment that is parallel with respect to the second wall (2, 3, 4, 5, 6, 7) arranged adjacent to the wall portion (18, 19), wherein the at least one wall portion (18, 19) also comprises the multi-layered structure arrangement comprising the inner structure (13), the outer structure (14) and the intermediate structure (15) arranged between the inner structure (13) and the outer structure (14), and that the intermediate structure (15) of the at least one wall portion (18, 19) is in direct contact with the intermediate structure (15) of the at least one first wall (2, 3, 4, 5, 6, 7), wherein a first one of the connection portions (8; 10) extending from the base plane (20) is formed on the at least one wall portion (18, 19).
4. The transport container (1) according to claim 3, characterized in that inner structure (13) as well as the outer structure (14) extend continuously from the first wall (2, 3, 4, 5, 6, 7) over the at least one wall portion (18, 19) arranged on the first wall (2, 3, 4, 5, 6, 7), and that in each case the portion (23) of the inner structure (13) as well as the portion (24) of the outer structure (14) protrude beyond a longitudinal end face (21, 22) of the intermediate structure (15) of the wall portion (18, 19), which longitudinal end face is arranged at a distance from the first wall (2, 3, 4, 5, 6, 7).
5. The transport container (1) according to claim 4, characterized in that the portions (23, 24) of the inner structure (13) and the outer structure (14), which portions (23, 24) protrude beyond the longitudinal end face (21, 22) of the intermediate structure (15) of the at least one wall portion (18, 19), are aligned parallel to one another and are connected to one another in the first contact portion.
6. The transport container (1) according to claim 4 or 5, characterized in that the longitudinal end face (21, 22) of the intermediate structure (15) of the at least one wall portion (18, 19) is aligned to extend inclined as viewed in the cross-section.
7. The transport container (1) according to any one of claims 3 to 6, characterized in that the second wall (2, 3, 4, 5, 6, 7) adjoining the respective wall portion (18, 19) includes the further connection portion (9; 11) that is formed mirror-inverted with respect to the first connection portion (8; 10).
8. The transport container (1) according to claim 7, characterized in that the portion (25) of the inner structure (13) as well as the portion (26) of the outer structure (14) protrude toward the base plane (20) and beyond the intermediate structure (15) of the second wall (2, 3, 4, 5, 6, 7) adjoining the respective wall portion (18, 19), and the two portions (25, 26) are aligned parallel to one another and are connected to one another in the second contact portion.
9. The transport container (1) according to any one of claims 3 to 8, characterized in that at least in the region of connection portions (8, 9; 10, 11) that face one another, a wall thickness of the intermediate structure (15) of the wall portion (18, 19) as well as of the intermediate structure (15) of the second wall (2, 3, 4, 5, 6, 7) adjoining thereto is formed to be smaller than a wall thickness of the intermediate structures (15) arranged outside of the connection portions (8, 9; 10, 11).
10. The transport container (1) according to any one of claims 3 to 9, characterized in that in each of the connection portions (8, 9; 10, 11) that face one another, end portions of the intermediate structure (15) of the wall portion (18, 19) as well as of the intermediate structure (15) of the second wall (2, 3, 4, 5, 6, 7) adjoining thereto overlap one another.
11. The transport container (1) according to any one of claims 3 to 10, characterized in that on both side walls (2, 3), in each case on their longitudinal edges (16, 17) facing the bottom wall (6) as well as the roof wall (7), there is arranged one of the wall portions (18, 19).
12. The transport container (1) according to claim 11, characterized in that each of the wall portions (18, 19), in each case on its side facing away from the base plane (20), has a longitudinal end face (21, 22) on the intermediate structure (15), and that both longitudinal end faces (21, 22) on the intermediate structures (15) of the wall portions (18, 19) facing the bottom wall (6) as well as the roof wall (7) are aligned so as to extend inclined from the roof wall (7) towards the bottom wall (6), wherein a portion (23) of the inner structure (13) as well as a portion (24) of the outer structure (14) of each wall portion (18, 19) protrude beyond the longitudinal end faces (21, 22) that are arranged at a distance from the respective side wall (2, 3).
13. The transport container (1) according to any one of claims 3 to 12, characterized in that the outer structure (14) of the at least one wall portion (18, 19) arranged on the side wall (2) is formed to extend in a planar manner in the region of the bottom wall (6) adjoining thereto.
14. The transport container (1) according to any one of claims 3 to 13, characterized in that the inner structure (13) of the at least one wall portion (18, 19) arranged on the side wall (2) is formed to extend in a planar manner in the region of the roof wall (7) adjoining thereto.
15. The transport container (1) according to anyone of claims 8 to 14, characterized in that the respective further connection portion (9; 11) has a recess (27, 28) in the region of the roof wall (7) and/or the bottom wall (6) for the portions (23, 24) of the inner structure (13) as well as of the outer structure (14), which portions protrude beyond the intermediate structure (15) of the at least one wall portion (18, 19).
16. The transport container (1) according to any one of the preceding claims, characterized in that in the region of connection portions (8, 9; 10, 11) of the first wall (2, 3, 4, 5, 6, 7) which face one another as well as of the second wall (2, 3, 4, 5, 6, 7) adjoining thereto, for the mutual connection of the same, there is incorporated a firmly bonding connection means and an additional structure element (29) is fastened, at least in certain sections, to the inner structures (13) of the walls (2, 3, 4, 5, 6, 7) arranged immediately adjacent to one another.
17. The transport container (1) according to any one of the preceding claims, characterized in that the inner structure (13) of the individual walls (2, 3, 4, 5, 6, 7) is formed by a multi-layer laminate structure, which inner structure (13) forms a self-supporting support unit.
18. The transport container (1) according to claim 17, characterized in that on the inner structure (13) of at least individual ones of walls (2, 3, 4, 5, 6, 7) there is arranged at least one web-shaped flange (42) projecting towards the receiving space (12), which flange (42) is co-shaped by the inner structure (13).
19. The transport container according to claim 17 or 18, characterized in that the receiving space (12) bordered by the walls (2, 3, 4, 5, 6, 7) is divided by a plurality of partition walls (30) extending at least between the side walls (2, 3) and/or the front and rear end walls (4, 5), wherein the partition walls (30), in the connection region thereof, are each connected on the walls (2, 3, 4, 5, 6, 7) to the inner structure (13) thereof, which is formed in a supporting manner.
20. A method for producing a self-supporting transport container (1) formed in modular design, in particular a water tank or extinguishing agent tank for fire engines or municipal vehicles, in which the transport container (1) is assembled from side walls (2, 3), a front and an rear end wall (4, 5), a bottom wall (6) as well as a roof wall (7) at connection portions (8, 9; 10, 11) which face one another in each case between the individual walls (2, 3, 4, 5, 6, 7), and the walls (2, 3, 4, 5, 6, 7) are connected to one another in a fluid-tight manner, wherein the walls (2, 3, 4, 5, 6, 7) are formed with a multi-layered structure comprising in each case an inner structure (13), an outer structure (14) as well as an intermediate structure (15) arranged between the inner structure (13) and the outer structure (14), and the intermediate structure (15) of at least some of the walls (2, 3, 4, 5, 6, 7) is enclosed on all sides by the inner structure (13) as well as the outer structure (14), wherein the structure arrangement is produced beginning with the outer structure (14), then with the intermediate structure (15) and subsequently the inner structure (13), and that portions (23, 25; 32, 35) of the inner structure (13) as well as portions (24, 26; 34, 36) of the outer structure (14) of each of the walls (2, 3, 4, 5, 6, 7) facing one another are arranged to protrude beyond the intermediate structure (15), and the portions (23, 24; 32, 34) of the inner structure (13) and the outer structure (14) protruding beyond a first wall (2, 3, 4, 5, 6, 7) towards a respective second wall (2, 3, 4, 5, 6, 7) are aligned at an angle with respect to a base plane (20) defined by the inner structure (13) and are sealingly connected to one another in a first contact portion, and that a projecting holding lug is formed by each of the portions (23, 24; 32, 34) connected to one another of the inner structure (13) and the outer structure (14) of the first wall (2, 3, 4, 5, 6, 7), and that the portions (25, 26; 35, 36) of the inner structure (13) and the outer structure (14) protruding beyond the second wall (2, 3, 4, 5, 6, 7) are sealingly connected to one another in a second contact portion, characterized in that a portion of the second wall (2, 3, 4, 5, 6, 7) including the inner structure (13), the intermediate structure (15) and the outer structure (14) is abuttingly supported on a side facing the receiving space (12) or on a side facing away from the receiving space (12) of the portions (23, 24; 32, 34) of the first wall (2, 3, 4, 5, 6, 7) which protrude beyond the base plane (20) and form the holding lug.
21. The method according to claim 20, characterized in that at least on one longitudinal edge (16, 17) of one of the walls (2, 3, 4, 5, 6, 7) there is arranged a wall portion (18, 19), which at least one wall portion (18, 19) protrudes beyond the base plane (20) defined by the inner structure (13) of the first wall (2, 3, 4, 5, 6, 7) at angle with respect to the base plane (20), and the at least one wall portion (18, 19) is aligned with an alignment that is parallel with respect to the wall (2, 3, 4, 5, 6, 7) arranged adjacent to the wall portion (18, 19), and a first one of the connection portions (8; 10) extending from the base plane (20) is formed on the at least one wall portion (18, 19), wherein the at least one wall portion (18, 19) is also formed with the multi-layered structure comprising the inner structure (13), the outer structure (14) as well as the intermediate structure (15) arranged between the inner structure (13) and the outer structure (14), and wherein further the intermediate structure (15) of the at least one wall portion (18, 19) is brought in direct contact with the intermediate structure (15) of the first wall (2, 3, 4, 5, 6, 7).

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