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EP2611699B1 - Transporting container - Google Patents

Transporting container Download PDF

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Publication number
EP2611699B1
EP2611699B1 EP11751874.6A EP11751874A EP2611699B1 EP 2611699 B1 EP2611699 B1 EP 2611699B1 EP 11751874 A EP11751874 A EP 11751874A EP 2611699 B1 EP2611699 B1 EP 2611699B1
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EP
European Patent Office
Prior art keywords
side walls
transport container
base
transport
connecting sections
Prior art date
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Application number
EP11751874.6A
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German (de)
French (fr)
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EP2611699A1 (en
Inventor
Markus Feurer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Feurer Febra GmbH
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Feurer Febra GmbH
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Priority to PL11751874T priority Critical patent/PL2611699T3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/18—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected
    • B65D11/1833—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected whereby all side walls are hingedly connected to the base panel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/225—Collapsible boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
    • B65D21/0217—Containers with a closure presenting stacking elements
    • B65D21/0219—Containers with a closure presenting stacking elements the closure presenting projecting peripheral elements receiving or surrounding the bottom or peripheral elements projecting from the bottom of a superimposed container

Definitions

  • the invention relates to a transport container according to the preamble of claim 1 and a method for producing the transport container.
  • a transport container which is used in particular as a thermally insulating transport container, for example in the food industry. If the side walls are in the receiving position, then the transport container is suitable for receiving objects in the transport space. For an empty transport of the transport container, the side walls can be folded into a transport position that they are stored to save space on or above the ground. From a substantially cuboid transport container with a hollow, fillable transport space is then also a substantially cuboidal object having no or only a small cavity.
  • the folding over of the side walls towards the floor is usually preferred to folding the side walls away from the floor, since then the base area thereof does not change during folding of the transport container.
  • hinges are provided in the known transport container, which have at the bottom integrally molded joint recesses and in the joint recesses held, integrally formed on the side walls rod ends. The floor and the side walls must therefore be made individually and then joined together. This is expensive.
  • a transport container of the aforementioned type is known, whose side walls are connected to the ground via intermediate pieces, which have hooks which are anchored in recesses in the ground.
  • the assembly of this transport container is expensive.
  • WO 93/13991 A1 Base length for the preamble of claim 1
  • the side walls are articulated by means of intermediate members on the ground, which are connected in each case with a film hinge with the bottom and the respective side wall. This reduces the stability of the transport container in the area of the soil.
  • the invention is based on the idea to manufacture the transport container from one piece. This is accomplished by providing foam particles of expanded polypropylene (EPP), expanded polystyrene (EPS), polyethylene (PE), polyurethane (PU) or the like in a mold having a cavity corresponding to the shape of the transport container with the sidewalls in the receiving position Polyethylene terephthalate (PET) are filled and sintered together by applying heat. In this manufacturing process, it is not readily possible joint recesses and rod ends according to the WO2006 / 105962 A1 train.
  • EPP expanded polypropylene
  • EPS expanded polystyrene
  • PE polyethylene
  • PU polyurethane
  • the hinges for folding the side walls relative to the ground are instead formed in a simpler manner by material weakening of the side walls, so that the side walls are integrally connected to the ground via connecting parts with a smaller wall thickness and a folding along formed by the connecting parts fold lines is possible.
  • the connecting portions may be reinforced by a reinforcing element such as a fabric inside or at one or both surfaces.
  • Such a transport container can be produced in a simple manner by inserting slides into the production mold via openings, so that the cavity of the mold in the region of the connecting parts is reduced to the thickness thereof.
  • the slides are expediently introduced into the mold before the heat is applied to the foam particles, so that the connecting parts are formed during the sintering process.
  • Such cutting can also take place by means of a slide by means of a cutting device such as a knife or a wire. Cutting is also possible outside the mold.
  • the compounds are formed with low wall thickness as film hinges, in particular with a thickness of 0.1 mm to 5 mm, in particular with a thickness of 0.5 mm to 2 mm.
  • Film hinges provide a particularly easy way to pivot the side walls relative to the ground.
  • it is expediently located between the bottom and each of the side walls in the receiving position extending from the transport space facing away from the outer side of the respective side wall to the associated connecting portion extending gap.
  • the gap is due to the preferred manufacturing method described above and its size is dependent on the thickness of the slider used.
  • they can with at least one spacer element be provided, which projects in the receiving position in the gap and stands up on the floor.
  • the at least one spacer element is formed on the ground and the relevant side wall rests on him.
  • the spacer element is obtained in that the corresponding slider is made thinner in places. The local thickening of the slider or cutter causes its stabilization.
  • two side walls are expediently locked to one another at their adjoining end sections by means of latching projections and complementary latching recesses.
  • the latching projections and latching recesses are usually subsequently, ie after the sintering process, formed by the side walls are first connected in one piece at the appropriate points by sintering and then separated from each other by a suitably shaped cutting tool. It is also possible to produce the locking projections and locking recesses already during sintering in the form by having thin partitions between the side walls. If the side walls with the formation of the locking projections and detent recesses subsequently separated from each other, then moves the slider or the cutting device in the vertical direction in the material, while driving in the manufacture of the gap of the slide or cutter in the horizontal direction in the material.
  • the side walls in the receiving position on a peripheral edge which forms a circumferential shoulder, which can serve as a stacking edge or as a support surface for a lid.
  • a complementary recess may be formed in the underside of the bottom, so that a plurality of identical transport container can be stacked against each other slip.
  • the transport container can be provided with a lid for covering the transport space.
  • This advantageously consists of the same material as the side walls and the bottom and is expediently integrally connected to at least one further connecting part with at least one side wall.
  • the lid can then be pivoted to open the transport space to the other connecting portion relative to the side wall.
  • the lid may be integrally and hinged to a side wall or consist of two parts, each lid part is hinged to a side wall.
  • the floor can also be provided in its the transport space facing inside with recesses for cargo, the contours of which correspond to the outer contours of the intended cargo. This prevents transport goods picked up in the transport space from slipping.
  • the mutually sintered foam particles each have an outer wall and an enclosed by the outer wall, substantially hollow interior.
  • the outer walls of the foam particles can be thickened by a further heat treatment, so that a skin-like layer is formed.
  • This skin forms a smooth surface that is easy to clean.
  • it is more resistant to mechanical stress. It is therefore preferred to provide the connecting parts on one or both sides with such a skin.
  • the entire inner surface of the transport container can be provided with such a skin, for example, to make them more suitable for receiving food. For details of the skin or the production of the skin is on the DE 20 2010 005 090 directed.
  • the in Fig. 1 to 3 illustrated transport container 10 is made in one piece from a particle expanded expanded polypropylene (EPP).
  • the particle foam has a multiplicity of foam particles, which each have an outer wall and a substantially hollow inner space enclosed by the outer wall and which have been connected to one another by means of a sintering process.
  • the transport container 10 has a bottom 12 with a rectangular outline with rounded corners, from which four side walls 14 extend.
  • the side walls 14 define circumferentially with their mutually facing inner surfaces 16 a transport space 18 for receiving transported goods.
  • the side walls 14 are connected by means of connecting portions 20 with the bottom 12.
  • the thickness of the connecting parts 20 is substantially less than the wall thickness of the side walls 14, so that the connecting parts 20 form crease lines around which the side walls 14 opposite the bottom 12 of the in Fig. 1 shown receiving position in which cargo can be taken between them, and the in Fig. 3 shown transport position can be pivoted.
  • the pivoting takes place in the direction of the container interior, ie on the floor 12, so that the transport container 10 with the side walls 14 in the transport position has no larger floor plan than with the side walls 14 in the receiving position.
  • the connecting parts 20 are formed as film hinges and arranged directly adjacent to the transport space 18. Their inner surfaces 22 facing the transport space 18 are aligned with the inner surfaces 16 of the side walls 14. Starting from the outer surfaces 24 of the side walls 14, a thin gap 26 extends between the bottom 12 and each of the side walls 14.
  • the connecting portions 20 on the narrow sides are in a larger one Height attached as the connecting parts 20 on the long sides. The height difference corresponds to the wall thickness of the side walls 14.
  • the connecting parts 20 on the longitudinal sides are arranged a little way over a support surface 30 of the bottom 12, to facilitate folding.
  • the inner surfaces 16, 22, 30 of the side walls 14, the connection parts 20 and the bottom 12, which delimit the transport space 18, were subjected to a heat treatment during manufacture, such that the outer walls of the foam particles adjoining the inner surfaces 16, 22, 30 face the outer walls of the foam particles are thickened at other locations of the transport container 10. As a result, an inner skin lining the transport container is formed.
  • the outer walls of the foam particles are also thickened on the outer surfaces 28 of the connecting parts 20, so that the connecting parts 20 are provided with a bilateral skin, which increases their mechanical strength and reduces the wear during pivoting of the side walls 14 relative to the bottom 12.
  • the side walls 14 abut each other without being fastened to each other by connecting means. They are held together only by frictional forces, wherein it is also possible to provide the side walls 14 with connecting means in order to connect them together.
  • the connecting means may be latching connectors, which are subsequently screwed.
  • the side walls are connected to each other in pairs.
  • each side wall 14 of the narrow sides has a latching projection 32, which engages in a corresponding latching recess 34 in the adjacent side wall 14 on the longitudinal side of the transport container 10.
  • each side wall 14 has at one of its ends a hook 36 which engages in the receiving position with a corresponding hook 36 of the adjacent side wall 14.
  • each of the side walls 14 of the narrow sides of a further latching projection 37 is formed, which inhibits folding over the adjacent side wall 14.
  • the side walls 14 are connected to each other in other ways.
  • the transport container 210 is identical to the transport container 10 according to the first embodiment, with the exception of a peripheral edge 38 on its upper side.
  • the edge 38 is formed by four integrally formed on the side walls 14 edge portions.
  • a shoulder 40 connects to the edge 38.
  • a cover 42 is considered, which closes the transport space 18 at the top.
  • the cover 42 rests on the shoulder 40 and has on its underside a contour for receiving the edge 38 so that it holds it in its position.
  • the cover 44 has a recess 44 surrounded by a ring, which serves to receive a circumferential stacking edge 46 integrally formed on the underside of the base 12.
  • Fig. 6 shows a variant of the third embodiment, which differs from the in Fig. 5 only variant shown in that the gap between the bottom 12 and the one shown Side wall 14 is made substantially wider.
  • spacer elements 48 are formed, which protrude into the receiving position in the gap 26 and on which the side wall 14 stands up. The spacer 48 prevent folding of the side wall 14 to the outside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Packages (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Description

Die Erfindung betrifft einen Transportbehälter gemäß Oberbegriff des Anspruchs 1 sowie ein Verfahren zur Herstellung des Transportbehälters.The invention relates to a transport container according to the preamble of claim 1 and a method for producing the transport container.

Aus der WO2006/105962A1 ist ein Transportbehälter bekannt, der insbesondere als thermisch isolierender Transportbehälter, beispielsweise im Lebensmittelbereich, eingesetzt wird. Befinden sich die Seitenwände in der Aufnahmeposition, so ist der Transportbehälter zur Aufnahme von Gegenständen in dem Transportraum geeignet. Für einen Leertransport des Transportbehälters können die Seitenwände so in eine Transportposition umgeklappt werden, dass sie platzsparend auf oder über dem Boden abgelegt werden. Aus einem im Wesentlichen quaderförmigen Transportbehälter mit einem hohlen, befüllbaren Transportraum wird dann ein ebenfalls im Wesentlichen quaderförmiger Gegenstand, der keinen oder nur einen kleinen Hohlraum aufweist. Dabei wird das Umklappen der Seitenwände zum Boden hin, verbunden mit dem Ablegen der Seitenwände auf oder über dem Boden gegenüber einem Umklappen der Seitenwände vom Boden weg meist bevorzugt, da sich dann beim Zusammenfalten des Transportbehälters dessen Grundfläche nicht ändert. Um die Seitenwände umklappen zu können, sind bei dem bekannten Transportbehälter Scharniere vorgesehen, die am Boden einstückig angeformte Gelenkausnehmungen sowie in den Gelenkausnehmungen gehalterte, an den Seitenwänden einstückig angeformte Gelenkköpfe aufweisen. Der Boden und die Seitenwände müssen somit jeweils einzeln gefertigt und danach zusammengefügt werden. Dies ist aufwendig.From the WO2006 / 105962A1 a transport container is known which is used in particular as a thermally insulating transport container, for example in the food industry. If the side walls are in the receiving position, then the transport container is suitable for receiving objects in the transport space. For an empty transport of the transport container, the side walls can be folded into a transport position that they are stored to save space on or above the ground. From a substantially cuboid transport container with a hollow, fillable transport space is then also a substantially cuboidal object having no or only a small cavity. In this case, the folding over of the side walls towards the floor, combined with the laying off of the side walls on or above the floor, is usually preferred to folding the side walls away from the floor, since then the base area thereof does not change during folding of the transport container. In order to be able to fold over the side walls, hinges are provided in the known transport container, which have at the bottom integrally molded joint recesses and in the joint recesses held, integrally formed on the side walls rod ends. The floor and the side walls must therefore be made individually and then joined together. This is expensive.

Aus der EP 0 759 400 A2 ist ein Transportbehälter der eingangs genannten Art bekannt, dessen Seitenwände mit dem Boden über Zwischenstücke verbunden sind, welche Haken aufweisen, die in Ausnehmungen im Boden verankert werden. Auch der Zusammenbau dieses Transportbehälters ist aufwendig. Aus der WO 93/13991 A1 (Grundlange für den Oberbegriff des Anspruchs 1) ist ein Transportbehälter bekannt, dessen Seitenwände mittels Zwischengliedern am Boden angelenkt sind, welche mit jeweils einem Filmscharnier mit dem Boden und der jeweiligen Seitenwand verbunden sind. Dies verringert die Stabilität des Transportbehälters im Bereich des Bodens.From the EP 0 759 400 A2 a transport container of the aforementioned type is known, whose side walls are connected to the ground via intermediate pieces, which have hooks which are anchored in recesses in the ground. The assembly of this transport container is expensive. From the WO 93/13991 A1 (Basic length for the preamble of claim 1) is a transport container is known, the side walls are articulated by means of intermediate members on the ground, which are connected in each case with a film hinge with the bottom and the respective side wall. This reduces the stability of the transport container in the area of the soil.

Es ist daher Aufgabe der Erfindung, einen Transportbehälter der eingangs genannten Art derart weiterzubilden, dass er einfacher gefertigt werden kann.It is therefore an object of the invention to develop a transport container of the type mentioned in such a way that it can be made easier.

Die Aufgabe wird erfindungsgemäß durch einen Transportbehälter mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.The object is achieved by a transport container with the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims.

Der Erfindung liegt der Gedanke zugrunde, den Transportbehälter aus einem Stück zu fertigen. Dies, erfolgt dadurch, dass in eine Form, die einen der Gestalt des Transportbehälters mit den Seitenwänden in der Aufnahmeposition entsprechenden Hohlraum aufweist, Schaumpartikel aus expandiertem Polypropylen (EPP), expandiertem Polystyrol (EPS), Polyethylen (PE), Polyurethan (PU) oder Polyethylenterephthalat (PET) eingefüllt und durch Wärmebeaufschlagung miteinander versintert werden. Bei diesem Herstellungsverfahren ist es nicht ohne weiteres möglich, Gelenkausnehmungen und Gelenkköpfe entsprechend der WO2006/105962 A1 auszubilden. Die Scharniere zum Umklappen der Seitenwände gegenüber dem Boden werden vielmehr auf einfachere Weise durch Materialschwächungen der Seitenwände gebildet, so dass die Seitenwände mit dem Boden über Verbindungspartien mit geringerer Wandstärke einstückig verbunden sind und eine Faltung entlang durch die Verbindungspartien gebildeter Knicklinien möglich ist. Die Verbindungspartien können durch ein Verstärkungselement wie beispielsweise ein Gewebe im Inneren oder an einer oder beiden Oberflächen verstärkt sein. Um ein Verschwenken der Seitenwände in Richtung zum Boden und ein Ablegen der Seitenwände auf oder über dem Boden zu ermöglichen, so dass der Grundriss im Wesentlichen derselbe bleibt, wenn die Seitenwände in die Transportposition verschwenkt werden, müssen die Verbindungspartien direkt an den Transportraum angrenzend angeordnet sein. Dies kann dadurch geschehen, dass die Verbindungspartien mit den Innenflächen der Seitenwände fluchten oder dadurch, dass die Verbindungspartien gegenüber den Innenflächen der Seitenwände ein Stück weit in den Transportraum hineinragen. Ein solcher Transportbehälter kann auf einfache Weise dadurch hergestellt werden, dass in die Herstellungsform über Öffnungen Schieber eingebracht werden, so dass der Hohlraum der Form im Bereich der Verbindungspartien auf deren Dicke reduziert wird.The invention is based on the idea to manufacture the transport container from one piece. This is accomplished by providing foam particles of expanded polypropylene (EPP), expanded polystyrene (EPS), polyethylene (PE), polyurethane (PU) or the like in a mold having a cavity corresponding to the shape of the transport container with the sidewalls in the receiving position Polyethylene terephthalate (PET) are filled and sintered together by applying heat. In this manufacturing process, it is not readily possible joint recesses and rod ends according to the WO2006 / 105962 A1 train. The hinges for folding the side walls relative to the ground are instead formed in a simpler manner by material weakening of the side walls, so that the side walls are integrally connected to the ground via connecting parts with a smaller wall thickness and a folding along formed by the connecting parts fold lines is possible. The connecting portions may be reinforced by a reinforcing element such as a fabric inside or at one or both surfaces. To allow pivoting of the sidewalls towards the floor and depositing the sidewalls on or above the floor so that the floor plan is substantially the same remains, when the side walls are pivoted to the transport position, the connecting parts must be arranged directly adjacent to the transport space. This can be done in that the connecting parts are aligned with the inner surfaces of the side walls or in that the connecting parts protrude with respect to the inner surfaces of the side walls a little way into the transport space. Such a transport container can be produced in a simple manner by inserting slides into the production mold via openings, so that the cavity of the mold in the region of the connecting parts is reduced to the thickness thereof.

Die Schieber werden zweckmäßig vor der Wärmebeaufschlagung der Schaumpartikel in die Form eingebracht, so dass die Verbindungspartien beim Sinterprozess gebildet werden. Es ist jedoch auch möglich, die Schieber nach dem Sinterprozess in die Form einzubringen, so dass das bereits fertige Schaumstoffteil im Bereich der Verbindungspartien so geschnitten wird, dass dort die Wandstärke verringert ist. Ein solches Schneiden kann statt mittels eines Schiebers auch mittels eines Schneidgeräts wie beispielsweise eines Messers oder eines Drahts erfolgen. Das Schneiden ist auch außerhalb der Form möglich.The slides are expediently introduced into the mold before the heat is applied to the foam particles, so that the connecting parts are formed during the sintering process. However, it is also possible to introduce the slides after the sintering process in the mold, so that the already finished foam part is cut in the region of the connecting parts so that there the wall thickness is reduced. Such cutting can also take place by means of a slide by means of a cutting device such as a knife or a wire. Cutting is also possible outside the mold.

Vorzugsweise sind die Verbindungen mit geringer Wandstärke als Filmscharniere ausgebildet, insbesondere mit einer Dicke von 0,1 mm bis 5 mm, dabei insbesondere mit einer Dicke von 0,5 mm bis 2 mm. Filmscharniere bieten eine besonders einfache Möglichkeit, die Seitenwände gegenüber dem Boden zu verschwenken. Des weiteren befindet sich zweckmäßig zwischen dem Boden und jeder der Seitenwände in der Aufnahmeposition ein sich von der dem Transportraum abgewandten Außenseite der jeweiligen Seitenwand bis zur zugehörigen Verbindungspartie erstreckender Spalt. Der Spalt ist durch das oben beschriebene bevorzugte Herstellungsverfahren bedingt und seine Größe ist abhängig von der Dicke der verwendeten Schieber. Um zu vermeiden, dass die Seitenwände in unerwünschter Weise nach außen klappen können, können diese mit mindestens einem Abstandselement versehen werden, das in der Aufnahmeposition in den Spalt ragt und auf dem Boden aufsteht. Umgekehrt ist es auch möglich, dass das mindestens eine Abstandselement am Boden angeformt ist und die betreffende Seitenwand auf ihm ruht. Beim bevorzugten Herstellungsverfahren wird das Abstandselement dadurch erhalten, dass der entsprechende Schieber stellenweise dünner ausgeführt ist. Die stellenweise Verdickung des Schiebers oder Schneidgeräts bewirkt dessen Stabilisierung.Preferably, the compounds are formed with low wall thickness as film hinges, in particular with a thickness of 0.1 mm to 5 mm, in particular with a thickness of 0.5 mm to 2 mm. Film hinges provide a particularly easy way to pivot the side walls relative to the ground. Furthermore, it is expediently located between the bottom and each of the side walls in the receiving position extending from the transport space facing away from the outer side of the respective side wall to the associated connecting portion extending gap. The gap is due to the preferred manufacturing method described above and its size is dependent on the thickness of the slider used. In order to avoid that the side walls can undesirably fold outwards, they can with at least one spacer element be provided, which projects in the receiving position in the gap and stands up on the floor. Conversely, it is also possible that the at least one spacer element is formed on the ground and the relevant side wall rests on him. In the preferred manufacturing method, the spacer element is obtained in that the corresponding slider is made thinner in places. The local thickening of the slider or cutter causes its stabilization.

Zweckmäßig sind in der Aufnahmeposition jeweils zwei Seitenwände an ihren aneinander angrenzenden Endabschnitten mittels Rastvorsprüngen und komplementären Rastvertiefungen miteinander verrastet. Dadurch werden die Seitenwände in der Aufnahmeposition fixiert. Die Rastvorsprünge und Rastvertiefungen werden in der Regel nachträglich, also nach dem Sinterprozess, ausgeformt, indem die Seitenwände an den entsprechenden Stellen zunächst durch Sintern einstückig miteinander verbunden und anschließend durch ein entsprechend geformtes Schneidwerkzeug voneinander getrennt werden. Es ist auch möglich, die Rastvorsprünge und Rastvertiefungen schon während des Sinterns in der Form herzustellen, indem diese zwischen den Seitenwänden dünne Trennwände aufweist. Werden die Seitenwände unter Ausbildung der Rastvorsprünge und Rastvertiefungen nachträglich voneinander getrennt, so fährt der Schieber bzw. das Schneidgerät in vertikaler Richtung in das Material, während bei der Herstellung des Spalts der Schieber oder das Schneidgerät in horizontaler Richtung in das Material fährt.In the receiving position, two side walls are expediently locked to one another at their adjoining end sections by means of latching projections and complementary latching recesses. As a result, the side walls are fixed in the receiving position. The latching projections and latching recesses are usually subsequently, ie after the sintering process, formed by the side walls are first connected in one piece at the appropriate points by sintering and then separated from each other by a suitably shaped cutting tool. It is also possible to produce the locking projections and locking recesses already during sintering in the form by having thin partitions between the side walls. If the side walls with the formation of the locking projections and detent recesses subsequently separated from each other, then moves the slider or the cutting device in the vertical direction in the material, while driving in the manufacture of the gap of the slide or cutter in the horizontal direction in the material.

Vorteilhaft weisen die Seitenwände in der Aufnahmeposition einen umlaufenden Rand auf, der einen umlaufenden Absatz bildet, welcher als Stapelrand oder als Auflagefläche für einen Deckel dienen kann. Dementsprechend kann in der Unterseite des Bodens eine komplementäre Vertiefung eingeformt sein, so dass mehrere baugleiche Transportbehälter rutschfest aufeinander gestapelt werden können. Des Weiteren kann der Transportbehälter mit einem Deckel zum Abdecken des Transportraums versehen werden.Advantageously, the side walls in the receiving position on a peripheral edge, which forms a circumferential shoulder, which can serve as a stacking edge or as a support surface for a lid. Accordingly, a complementary recess may be formed in the underside of the bottom, so that a plurality of identical transport container can be stacked against each other slip. Furthermore, the transport container can be provided with a lid for covering the transport space.

Dieser besteht vorteilhaft aus demselben Material wie die Seitenwände und der Boden und ist zweckmäßig über mindestens eine weitere Verbindungspartie mit mindestens einer Seitenwand einstückig verbunden. Der Deckel kann dann zum Öffnen des Transportraums um die weitere Verbindungspartie gegenüber der Seitenwand verschwenkt werden. Der Deckel kann einteilig und an einer Seitenwand angelenkt sein oder aus zwei Teilen bestehen, wobei jeder Deckelteil an einer Seitenwand angelenkt ist. Der Boden kann zudem in seiner dem Transportraum zugewandten Innenseite mit Vertiefungen für Transportgut versehen sein, deren Konturen den Außenkonturen des vorgesehenen Transportguts entsprechen. Dies hindert im Transportraum aufgenommenes Transportgut am Verrutschen.This advantageously consists of the same material as the side walls and the bottom and is expediently integrally connected to at least one further connecting part with at least one side wall. The lid can then be pivoted to open the transport space to the other connecting portion relative to the side wall. The lid may be integrally and hinged to a side wall or consist of two parts, each lid part is hinged to a side wall. The floor can also be provided in its the transport space facing inside with recesses for cargo, the contours of which correspond to the outer contours of the intended cargo. This prevents transport goods picked up in the transport space from slipping.

Die miteinander versinterten Schaumpartikel weisen jeweils eine Außenwand und einen von der Außenwand umschlossenen, im Wesentlichen hohlen Innenraum auf. An den Oberflächen des Transportbehälters können die Außenwände der Schaumpartikel durch eine weitere Wärmebehandlung verdickt werden, so dass eine hautartige Schicht entsteht. Diese Haut bildet zum einen eine glatte Oberfläche, die leicht zu reinigen ist. Zum anderen ist sie widerstandsfähiger gegenüber mechanischen Belastungen. Es wird daher bevorzugt, die Verbindungspartien einseitig oder beidseitig mit einer solchen Haut zu versehen. Des Weiteren kann die gesamte Innenfläche des Transportbehälters mit einer solchen Haut versehen werden, um sie beispielsweise besser geeignet für die Aufnahme von Lebensmitteln zu machen. Für Details der Haut bzw. der Herstellung der Haut wird auf die DE 20 2010 005 090 verwiesen.The mutually sintered foam particles each have an outer wall and an enclosed by the outer wall, substantially hollow interior. On the surfaces of the transport container, the outer walls of the foam particles can be thickened by a further heat treatment, so that a skin-like layer is formed. This skin forms a smooth surface that is easy to clean. On the other hand, it is more resistant to mechanical stress. It is therefore preferred to provide the connecting parts on one or both sides with such a skin. Furthermore, the entire inner surface of the transport container can be provided with such a skin, for example, to make them more suitable for receiving food. For details of the skin or the production of the skin is on the DE 20 2010 005 090 directed.

Im Folgenden wird die Erfindung anhand des in der Zeichnung in schematischer Weise dargestellten Ausführungsbeispiels näher erläutert. Es zeigen

Fig. 1
einen Transportbehälter mit den Seitenwänden in der Aufnahmeposition gemäß einem ersten Ausführungsbeispiel;
Fig. 2
den Transportbehälter gemäß Fig. 1 mit teilweise umgeklappten Seitenwänden ;
Fig. 3
den Transportbehälter gemäß Fig. 1 und 2 mit den Seitenwänden in der Transportposition;
Fig. 4
einen Transportbehälter mit den Seitenwänden in der Aufnahmeposition gemäß einem zweiten Ausführungsbeispiel;
Fig. 5
einen Transportbehälter mit den Seitenwänden in der Aufnahmeposition gemäß einem dritten Ausführungsbeispiel und
Fig. 6
eine Variante des Transportbehälters gemäß Fig. 5 in Seitenansicht.
In the following the invention will be explained in more detail with reference to the embodiment shown schematically in the drawing. Show it
Fig. 1
a transport container having the side walls in the receiving position according to a first embodiment;
Fig. 2
the transport container according to Fig. 1 with partially folded side walls;
Fig. 3
the transport container according to Fig. 1 and 2 with the side walls in the transport position;
Fig. 4
a transport container with the side walls in the receiving position according to a second embodiment;
Fig. 5
a transport container with the side walls in the receiving position according to a third embodiment and
Fig. 6
a variant of the transport container according to Fig. 5 in side view.

Der in Fig. 1 bis 3 dargestellte Transportbehälter 10 ist einstückig aus einem Partikelschaumstoff aus expandiertem Polypropylen (EPP) gefertigt. Der Partikelschaumstoff weist eine Vielzahl von Schaumpartikeln auf, die jeweils eine Außenwand und einen von der Außenwand umschlossenen, im Wesentlichen hohlen Innenraum aufweisen, und die mittels eines Sinterprozesses miteinander verbunden wurden. Der Transportbehälter 10 weist einen Boden 12 mit einem rechteckigen Grundriss mit abgerundeten Ecken auf, von dem aus sich vier Seitenwände 14 erstrecken. Die Seitenwände 14 begrenzen mit ihren einander zugewandten Innenflächen 16 rings umlaufend einen Transportraum 18 zur Aufnahme von Transportgut.The in Fig. 1 to 3 illustrated transport container 10 is made in one piece from a particle expanded expanded polypropylene (EPP). The particle foam has a multiplicity of foam particles, which each have an outer wall and a substantially hollow inner space enclosed by the outer wall and which have been connected to one another by means of a sintering process. The transport container 10 has a bottom 12 with a rectangular outline with rounded corners, from which four side walls 14 extend. The side walls 14 define circumferentially with their mutually facing inner surfaces 16 a transport space 18 for receiving transported goods.

Die Seitenwände 14 sind mittels Verbindungspartien 20 mit dem Boden 12 verbunden. Die Dicke der Verbindungspartien 20 ist wesentlich geringer als die Wandstärke der Seitenwände 14, so dass die Verbindungspartien 20 Knicklinien bilden, um die die Seitenwände 14 gegenüber dem Boden 12 von der in Fig. 1 gezeigten Aufnahmeposition, in der Transportgut zwischen ihnen aufgenommen werden kann, und der in Fig. 3 gezeigten Transportposition verschwenkt werden können. Das Verschwenken erfolgt in Richtung zum Behälterinneren, also auf den Boden 12 zu, so dass der Transportbehälter 10 mit den Seitenwänden 14 in der Transportposition keinen größeren Grundriss aufweist als mit den Seitenwänden 14 in der Aufnahmeposition.The side walls 14 are connected by means of connecting portions 20 with the bottom 12. The thickness of the connecting parts 20 is substantially less than the wall thickness of the side walls 14, so that the connecting parts 20 form crease lines around which the side walls 14 opposite the bottom 12 of the in Fig. 1 shown receiving position in which cargo can be taken between them, and the in Fig. 3 shown transport position can be pivoted. The pivoting takes place in the direction of the container interior, ie on the floor 12, so that the transport container 10 with the side walls 14 in the transport position has no larger floor plan than with the side walls 14 in the receiving position.

Die Verbindungspartien 20 sind als Filmscharniere ausgebildet und direkt an den Transportraum 18 angrenzend angeordnet. Ihre dem Transportraum 18 zugewandten Innenflächen 22 fluchten mit den Innenflächen 16 der Seitenwände 14. Von den Außenflächen 24 der Seitenwände 14 ausgehend erstreckt sich ein dünner Spalt 26 zwischen dem Boden 12 und jeder der Seitenwände 14. Die Verbindungspartien 20 an den Schmalseiten sind in einer größeren Höhe angebracht als die Verbindungspartien 20 an den Längsseiten. Die Höhendifferenz entspricht dabei der Wandstärke der Seitenwände 14. Auch die Verbindungspartien 20 an den Längsseiten sind ein Stück weit über einer Auflagefläche 30 des Bodens 12 angeordnet, um ein Umklappen zu erleichtern.The connecting parts 20 are formed as film hinges and arranged directly adjacent to the transport space 18. Their inner surfaces 22 facing the transport space 18 are aligned with the inner surfaces 16 of the side walls 14. Starting from the outer surfaces 24 of the side walls 14, a thin gap 26 extends between the bottom 12 and each of the side walls 14. The connecting portions 20 on the narrow sides are in a larger one Height attached as the connecting parts 20 on the long sides. The height difference corresponds to the wall thickness of the side walls 14. Also, the connecting parts 20 on the longitudinal sides are arranged a little way over a support surface 30 of the bottom 12, to facilitate folding.

Die den Transportraum 18 begrenzenden Innenflächen 16, 22, 30 der Seitenwände 14, der Verbindungspartien 20 und des Bodens 12 wurden bei der Herstellung einer Wärmebehandlung unterzogen, so dass die an die Innenflächen 16, 22, 30 angrenzenden Außenwände der Schaumpartikel gegenüber den Außenwänden der Schaumpartikel an anderen Stellen des Transportbehälters 10 verdickt sind. Dadurch wird eine den Transportbehälter auskleidende Innenhaut gebildet. Zudem sind die Außenwände der Schaumpartikel auch an den Außenflächen 28 der Verbindungspartien 20 verdickt, so dass die Verbindungspartien 20 mit einer beidseitigen Haut versehen sind, die ihre mechanische Belastbarkeit erhöht und den Verschleiß beim Verschwenken der Seitenwände 14 gegenüber dem Boden 12 verringert.The inner surfaces 16, 22, 30 of the side walls 14, the connection parts 20 and the bottom 12, which delimit the transport space 18, were subjected to a heat treatment during manufacture, such that the outer walls of the foam particles adjoining the inner surfaces 16, 22, 30 face the outer walls of the foam particles are thickened at other locations of the transport container 10. As a result, an inner skin lining the transport container is formed. In addition, the outer walls of the foam particles are also thickened on the outer surfaces 28 of the connecting parts 20, so that the connecting parts 20 are provided with a bilateral skin, which increases their mechanical strength and reduces the wear during pivoting of the side walls 14 relative to the bottom 12.

Beim Transportbehälter 10 gemäß dem ersten Ausführungsbeispiel liegen die Seitenwände 14 aneinander an ohne durch Verbindungsmittel aneinander befestigt zu sein. Sie werden lediglich durch Reibungskräfte zusammengehalten, wobei es auch möglich ist, die Seitenwände 14 mit Verbindungsmitteln zu versehen, um sie miteinander verbinden zu können. Die Verbindungsmittel können Rastverbinder sein, die nachträglich angeschraubt werden. Bei dem Transportbehälter 110 gemäß Fig. 4, der im übrigen identisch mit dem Transportbehälter 10 gemäß dem ersten Ausführungsbeispiel ausgeführt ist, sind die Seitenwände paarweise miteinander verbunden. Zu diesem Zweck weist jede Seitenwand 14 der Schmalseiten einen Rastvorsprung 32 auf, der in eine entsprechende Rastvertiefung 34 in der benachbarten Seitenwand 14 an der Längsseite des Transportbehälters 10 eingreift. Zudem weist jede Seitenwand 14 an einem ihrer Enden einen Haken 36 auf, der in der Aufnahmeposition mit einem entsprechenden Haken 36 der benachbarten Seitenwand 14 in Eingriff steht. Nahe des Hakens 36 ist zudem ein jeder der Seitenwände 14 der Schmalseiten ein weiterer Rastvorsprung 37 angeformt, der ein Umklappen der benachbarten Seitenwand 14 hemmt.In the transport container 10 according to the first embodiment, the side walls 14 abut each other without being fastened to each other by connecting means. They are held together only by frictional forces, wherein it is also possible to provide the side walls 14 with connecting means in order to connect them together. The connecting means may be latching connectors, which are subsequently screwed. In the transport container 110 according to Fig. 4 Incidentally, identical to the transport container 10 according to the first embodiment, the side walls are connected to each other in pairs. For this purpose, each side wall 14 of the narrow sides has a latching projection 32, which engages in a corresponding latching recess 34 in the adjacent side wall 14 on the longitudinal side of the transport container 10. In addition, each side wall 14 has at one of its ends a hook 36 which engages in the receiving position with a corresponding hook 36 of the adjacent side wall 14. Near the hook 36, in addition, each of the side walls 14 of the narrow sides of a further latching projection 37 is formed, which inhibits folding over the adjacent side wall 14.

Bei dem Transportbehälter 210 gemäß dem dritten Ausführungsbeispiel (Fig. 5) werden die Seitenwände 14 auf andere Weise miteinander verbunden. Der Transportbehälter 210 ist mit Ausnahme eines an seiner Oberseite umlaufenden Rands 38 mit dem Transportbehälter 10 gemäß dem ersten Ausführungsbeispiel identisch. Der Rand 38 wird durch vier an den Seitenwänden 14 angeformte Randabschnitte gebildet. Nach außen hin schließt sich an den Rand 38 ein Absatz 40 an. Desweiteren ist ein Deckel 42 angesehen, der den Transportraum 18 nach oben hin verschließt. Der Deckel 42 liegt auf dem Absatz 40 auf und weist an seiner Unterseite eine Kontur zur Aufnahme des Rands 38 auf, so dass dieser ihn in seiner Position hält. An seiner Oberseite weist der Deckel 44 eine rings umrandete Vertiefung 44 auf, die der Aufnahme eines an der Unterseite des Bodens 12 angeformten umlaufenden Stapelrands 46 dient.In the transport container 210 according to the third embodiment ( Fig. 5 ), the side walls 14 are connected to each other in other ways. The transport container 210 is identical to the transport container 10 according to the first embodiment, with the exception of a peripheral edge 38 on its upper side. The edge 38 is formed by four integrally formed on the side walls 14 edge portions. Outwardly, a shoulder 40 connects to the edge 38. Furthermore, a cover 42 is considered, which closes the transport space 18 at the top. The cover 42 rests on the shoulder 40 and has on its underside a contour for receiving the edge 38 so that it holds it in its position. At its upper side, the cover 44 has a recess 44 surrounded by a ring, which serves to receive a circumferential stacking edge 46 integrally formed on the underside of the base 12.

Der Stapelrand 46 ist in Fig. 6 dargestellt. Fig. 6 zeigt eine Variante des dritten Ausführungsbeispiels, das sich von der in Fig. 5 gezeigten Variante lediglich darin unterscheidet, dass der Spalt zwischen dem Boden 12 und der gezeigten Seitenwand 14 wesentlich breiter ausgeführt ist. Am Boden 12 sind zudem Abstandselemente 48 angeformt, die in der Aufnahmeposition in den Spalt 26 ragen und auf denen die Seitenwand 14 aufsteht. Die Abstandselement 48 verhindern ein Abklappen der Seitenwand 14 nach außen.The stacking edge 46 is in Fig. 6 shown. Fig. 6 shows a variant of the third embodiment, which differs from the in Fig. 5 only variant shown in that the gap between the bottom 12 and the one shown Side wall 14 is made substantially wider. At the bottom 12 also spacer elements 48 are formed, which protrude into the receiving position in the gap 26 and on which the side wall 14 stands up. The spacer 48 prevent folding of the side wall 14 to the outside.

Claims (15)

  1. Transport container with a base (12) that has an essentially rectangular outer contour and with four side walls (14) extending out from the base (12), which can be swivelled relative to the base (12) between a loading position, in which they are essentially positioned at right angles to the base (12) and, with their inner surfaces (16) facing each other, constitute the outer border all the way round a transport space (18), and a transport position, in which they are folded down and placed on or above the base (12), whereby the base (12) and the side walls (14) are connected to each other in one piece by means of connecting sections (20), which have a smaller wall thickness than the side walls (14), and whereby the connecting sections (20) are positioned at a distance from the outer contour of the base (12) and directly next to the transport space (18), characterised in that the base (12), the side walls (14) and the connecting sections (20) are made from a granulated foam plastic consisting of expanded polypropylene (EPP), expanded polystyrene (EPS), polyethylene (PE), polyurethane (PU) or polyethylene terephthalate (PET).
  2. Transport container according to Claim 1, characterised in that the inner surfaces (22) of the connecting sections (20) facing the transport space (18) are in each case connected so as to be flush with the inner surface (16) of the associated side wall (14).
  3. Transport container according to Claim 1, characterised in that the inner surfaces (22) of the connecting sections (20) facing the transport space (18) are in each case, relative to the inner surface (16) of the associated side wall (14), shifted in their position so as to protrude somewhat into the transport space (18).
  4. Transport container according to one of the preceding claims, characterised in that the connecting sections (20) are film hinges.
  5. Transport container according to one of the preceding claims, characterised in that between the base (12) and each of the side walls (14), in the loading position a gap (26) is present that extends from the outer surface (24) facing away from the transport space (18) of the particular side wall (14) up to the associated connecting section (20).
  6. Transport container according to Claim 5, characterised in that at least one part of the side walls (14) and/or the base (12) is equipped with at least one spacing element (48) which, in the loading position, projects into the gap (26) and stands on the base, (12) or upon which the particular side wall (14) stands.
  7. Transport container according to one of the preceding claims, characterised in that the connecting sections (20) each have a reinforcing element in their interior or on at least one of their surfaces (22, 28), in particular a plastic or textile fabric.
  8. Transport container according to one of the preceding claims, characterised in that in the loading position two side walls (14) in each case are locked to each other on their adjacent end sections by means of locking projections (32, 36, 37) and complementary locking slots (24, 36).
  9. Transport container according to one of the preceding claims, characterised by a lid (42) for covering the transport space (18), whereby the lid consists of the same material as the side walls (14) and the base (12) and is connected in one piece with at least one side wall (14) by means of at least one further connecting section.
  10. Transport container according to Claim 9, characterised in that the lid has two parts with two lid components connected in one piece with different side walls (14).
  11. Transport container according to one of the preceding claims, characterised in that the base (12), the side walls (14), the connecting sections (20) and, as appropriate, the lid, consist of a variety of foam particles sintered together, each of which have an outer wall and an essentially hollow interior space that is enclosed by the outer wall, whereby the outer walls of the foam particles at least in the region of the inner surfaces (22) and/or in the region of the outer surfaces (28) facing away from the inner surfaces (22) of the connecting sections (20) are thicker than on the other parts of the container (10) and form a skin positioned on one or both sides.
  12. Method for the manufacture of a transport container according to one of the preceding claims, whereby to construct the base (12), the side walls (14), the connecting sections (20) and, as appropriate, the lid, a mould is filled with foam particles and the foam particles are sintered to each other through the application of heat, characterised in that the wall thickness of the connecting sections (20) is established by means of sliders introduced into the mould.
  13. Method according to Claim 12, characterised in that the sliders are introduced into the mould before application of heat.
  14. Method according to Claim 12, characterised in that the sliders are introduced into the mould after application of heat and cut into the sintered foam.
  15. Method for the manufacture of a transport container according to one of Claims 1 to 11, whereby a mould for the base (12), the side walls (14), the connecting sections (20) and, as appropriate, the lid, is filled with foam particles and the foam particles are sintered to each other through the application of heat, characterised in that the wall thickness of the connecting sections (20) is determined after the removal of the transport container from the mould by introducing the gap (26) by means of a cutting tool.
EP11751874.6A 2010-09-02 2011-08-29 Transporting container Active EP2611699B1 (en)

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Also Published As

Publication number Publication date
EP2611699A1 (en) 2013-07-10
PL2611699T3 (en) 2015-07-31
ES2532107T3 (en) 2015-03-24
DK2611699T3 (en) 2015-03-23
DE102010044270A1 (en) 2012-03-08
WO2012028567A1 (en) 2012-03-08

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