DE20217922U1 - Packaging container comprises a side wall with at least one interior protrusion which is oriented at a right angle to the side wall, and fits into a seating provided for it on the edge of the container bottom - Google Patents

Abstract

The packaging container (1) comprises a side wall (2) with at least one interior protrusion which is oriented at a right angle to the side wall, fits into seating provided for it on the edge of the container bottom (3), and thus fixes the latter.

Description

TELEPHONE: 0711/784731 E-MAIL: PASchmid.KSP@t-online.de _# j'jßl, E FA %l,0it\/7 &dgr;&Lgr;&dgr; 8*9 6/96 KÖHLER SCHMID + P. RUPPMANNSTR. 27 D-70565 STUTTGART

KÖHLER SCHMID + PARTNER

PATENT ATTORNEYS GbR

25 324 Sl/nl

KR-PORSIPLAST
Packaging Systems GmbH Draisstrasse 15
D-76461 Muggensturm

Packaging containers

The invention relates to a packaging container with a container wall and a container base that is structurally separate from the container wall.

Such packaging containers are used in a variety of designs for the storage of goods, for example during storage and transport.

The object of the present invention is to provide a packaging container of the type mentioned at the outset, in which a load-bearing connection between the container wall and the container base is produced by simple means.

According to the invention, this object is achieved in that at least one projection is formed on the container wall, which projects transversely to the container wall in the direction of the container interior and which, while supporting the container base, engages transversely to the base plane in a receptacle on the container base that is open towards the inside of the container wall. The projection protruding from the container wall projects from the inside of the container wall. It engages in a receptacle in the container base that lies within the space delimited by the container wall. The outside of the container wall determines the external dimensions of the packaging container. Several packaging containers can therefore be arranged next to one another without a significant gap occurring between the packaging container walls of adjacent packaging containers. Because the projection is formed on the container wall, there is a particularly stable connection between the projection and the container wall. The container base is therefore held well on the container wall, so that the packaging container is particularly suitable for transporting heavy goods. The component separation of the container wall and the container base enables the use of different materials for the container wall and the container base. In particular

In particular, the container wall can be a hollow body plate and the container bottom can be made of foam.

In a particularly preferred embodiment, the container wall runs into the projection at its bottom end. This measure allows the container wall and projection to be manufactured in a particularly simple manner in a single manufacturing process. This embodiment also saves a lot of material.

It is particularly preferred if the projection is arranged at a right angle to the container wall. This design of the projection in relation to the container wall enables particularly good support of the container base to be achieved.

In a further preferred embodiment, the projection on the container wall is essentially continuous in its circumferential direction and the receptacle on the container base is also essentially continuous in its circumferential direction. This measure keeps the surface of the projection on which the container base is supported with a receiving surface of the receptacle as large as possible. The stability of the packaging container is increased in this way. The projection can be continuous in the circumferential direction or interrupted in the corner areas, so that each side of the container is assigned a projection. The projection

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However, it can also be interrupted at other points so that the container wall has a large number of projections.

In a further embodiment of the invention, the container wall can be attached to the container base in a closed circumferential direction. It is conceivable that the container wall is completely manufactured in a single production process, e.g. in an injection molding process. Alternatively, the container wall can be cut out of a strip of material according to the container circumference and folded and the free ends can be connected to one another. Furthermore, several container wall sections can be connected to one another in a separate work step. After the one-piece container wall has been joined to the container base, further work steps for connecting container wall sections are no longer necessary.

In an alternative embodiment, the container wall can be attached to the container base in an open manner in the circumferential direction. If the container wall is open in the circumferential direction, whereby the container wall can be made up of one or more parts, then the container parts can be stored and transported particularly easily as flat parts. Before assembling the packaging container, the container wall parts can then be folded according to the shape of the container base.

In a preferred development of the packaging container according to the invention, the ends of the container wall that is open in the circumferential direction are connected to one another, in particular welded, glued or locked together, after the projection has been introduced into the receptacle of the container base. This creates a one-piece container wall. The container wall is thus held captive on the container base.

In another inventive design, the container base is made in one piece. A container base made in one piece is particularly stable. Furthermore, the number of separate components required for a packaging container is reduced.

If the container base has locking lugs and the container wall can be locked into the container base with the projection, the container wall and container base can be connected to one another in a particularly simple manner. Essentially, the container wall is placed on the container base, and they lock together through the interaction of the projection with the locking lug. No further measures are necessary to connect the container base to the container wall.

In a further embodiment of the invention, it can be provided that the container bottom comprises at least two bottom parts delimited from one another in the direction of the bottom plane,

of which one, inner base part is arranged towards the inside of the container and the other, outer base part is arranged towards the outside of the container, and which each have a part of the wall of the receptacle and can be connected to one another to form the receptacle. This measure makes it easier to assemble a packaging container. In particular, a container wall can be attached to the container base in a particularly simple manner. The one-piece container wall is placed on the outer base part and then the inner base part is connected to the outer base part, whereby the projection comes to lie in the receptacle. It is also conceivable that different base parts can be combined with one another for different uses of the packaging container.

In a preferred development of the invention, the inner base part can be locked to the outer base part. The locking mechanism makes it particularly easy to connect the inner and outer base parts. No further measures are necessary to firmly connect the two base parts. However, it is also conceivable that the base parts are glued, riveted, welded or connected to one another in some other way.

If the container base is designed as a stacking base with a stacking edge, the packaging containers according to the invention can be stacked particularly safely and easily. This enables space-saving storage of goods.

In a preferred development, the stacking base is in two parts, with a stacking edge formed on the outer base part.

The container wall is advantageously made of lightweight panel elements. This measure keeps the weight of the packaging container low while maintaining high stability.

In an advantageous embodiment, the container base is made at least partially from foam, in particular expandable polypropylene. The entire container base can be made from foam, e.g. if it is made in one piece. Alternatively, the inner base part can be made from foam and the outer base part from a different material. The use of foam has the advantage that receptacles for goods to be transported can be formed in the container base in a particularly simple manner. The goods can therefore be stored in the packaging container in a non-slip and safe manner.

Further features and advantages of the invention emerge from the following description of embodiments of the invention, based on the figures of the drawings, which show details essential to the invention, and from the claims. The individual features can be used individually or in combination.

in any combination in a variant of the invention.

The invention is explained in more detail below using schematic representations of exemplary embodiments. They show:

Fig. 1 is a perspective view of a packaging container according to the invention,

Fig. 2 is a sectional view of a container wall of the packaging container of Fig. 1,

Fig. 3 is a sectional view of the packaging container according to Fig. 1 with a one-piece container base,

Fig. 4 a sectional view through a packaging container with a two-part container base,

Fig. 5 a sectional view through a packaging container with the container wall locked into the container base and

Fig. 6 is a sectional view through a packaging container with a two-part container base, wherein the container base parts are locked together.

According to Fig. 1, a packaging container 1 comprises a container wall 2 which is connected to a container base 3. At its end facing away from the container base 3, the container wall 2 has an edge profile 4. During assembly, the container wall 2 was attached in several parts, namely a first container wall part 5 and a second container wall part 6. The container wall parts 5, 6 were then welded together at their butt-jointed ends. The container wall 2 therefore has seams 7, 8.

Fig. 2 shows a sectional view of the container wall 2 of the packaging container 1 of Fig. 1, wherein the cutting plane runs through the seams 7, 8. Projections 10, 11, 12 are formed on the container wall 2, wherein in the illustration in Fig. 2 the projections 10, 12 are shown in section and the projection 11 in a plan view. The projections 10, 11, 12 are arranged at right angles to the container wall 2. From the illustration of the projection 11 it is clear that the projections are formed essentially over the entire length of one side of the container wall 2. From the illustration in Fig. 2 it is also clear that the container wall 2 runs into the projections 10, 11, 12 at its bottom end.

Fig. 3 shows a sectional view of the packaging container of Fig. 1, where the cutting plane also runs through the seams 7, 8. The container base 3 is divided

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lig and has a receptacle 14 which is designed as a continuous groove. The projections 10, 12 protruding towards the container interior 15 engage in the
Receptacle 14. The surfaces 16, 17 of the projections 10, 12 support an associated wall 18 of the receptacle 14 perpendicular to the bottom plane of the container bottom 3. On the other hand,
the projections 10, 12 with their surfaces 19, 20 on the opposite
Wall 21 of the receptacle 14. The container bottom 3 has an insertion aid 22 on which the projections
slide along with their surfaces 16, 17 during insertion of the projections 10, 12 into the receptacle 14. At its lower end, the container base 3 has a stacking edge 23.

Fig. 4 shows a section of a packaging container with
two-part container bottom. The container bottom 25
has an inner base part 26 and an outer base part 27. Between the base parts 26, 27 is a circumferential receptacle
28 into which the projections 10, 12 engage.
In the embodiment, the base parts 26, 27 are solid
Plates. However, it is also conceivable to design the floor parts differently, for example the outer floor part 27 as a frame or profile and the inner floor part 26 as a grid-shaped
Plate. For assembly, the container wall 2 with the projections
10, 12 onto the wall formed by the walls 29, 30
recess of the outer bottom part 27. The container wall 2 can be welded before assembly, i.e.

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lig with a closed container wall. The inner base part 26 is then placed on top so that the receptacle 28 is formed between the inner and outer base parts 26, 27 and the projections 10, 12 engage in the receptacle 28. The inner base part 26 can be welded, riveted, screwed or otherwise connected to the outer base part 27. A stacking edge 31 is formed on the outer base part 27.

In the sectional view of a packaging container in Fig. 5, the container base 32 is formed in one piece. The projections 10, 12 are locked to the container base 32. The container base 32 has a circumferential locking lug 33 which, together with the circumferential wall 34, forms a receptacle 35 for the projections 10, 12. For assembly, a one-piece container wall 2 is placed on the container base 32 and pressed onto the container base 32 with temporary deformation of the locking lug 33 and/or the projections 10, 12 until the projections 10, 12 lock into the locking lug 33. An inclined surface 36 is formed on the locking lug 33, which facilitates the locking of the container wall 2 to the container base 32. The locking holds the container wall 2 in a form-fitting manner on the container base 32. A stacking edge 37 is formed on the container bottom 32.

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The sectional view in Fig. 6 shows an alternative embodiment of a two-part container base 40. The container base 40 has an inner base part 41 and an outer base part 42. The base parts 41, 42 form a circumferential receptacle 43 for the projections 10, 12. The outer base part 42 has a circumferential locking lug 44 and the inner base part 41 has a corresponding circumferential locking lug 45. For assembly, a one-part or multi-part container wall 2 with its projections 10, 12 is placed on the recess formed by the walls 46, 47. The inner base part 41 is then locked to the outer base part 42 via the locking lugs 44, 45. This forms the receptacle 43 into which the projections 10, 12 engage. The outer base part 42 has a stacking edge 48.

To produce the container wall 2, a strip of material is cut from a lightweight panel in the form of a hollow body panel with a molded-on projection 10, 11, 12, the width of which corresponds to the height of the container wall 2 and the length of which corresponds to the entire circumferential length of the container wall 2. This is followed by folding the lightweight panel strip according to the desired course of the container wall 2. If the projection is formed continuously on the container wall 2, it may be necessary to cut the projection at the edge areas of the container wall 2. The ends of the lightweight panel strip which abut against each other after folding are

finally connected to one another, for example welded. Instead of cutting out a strip of material that corresponds to the entire circumferential length of the container wall 2, it is also possible to cut out strips of material that correspond to half the circumferential length of the container wall 2. After appropriate folding, these container wall parts can be welded together, as shown in Fig. 1. To facilitate folding, material thinnings can be provided in the edge areas of the container wall 2. It is also conceivable to cut out strips of material that each correspond to the length of one side of the container wall.

Packaging containers 1 stacked on top of one another are secured against slipping sideways. This securing is achieved by a mutual coordination of the design of the edge profile 4 and the stacking edge 23, 31, 37, 48, which is formed on the container base 3, 25, 32, 40.

Claims (15)

1. Packaging container ( 1 ) with a container wall ( 2 ) and a container base ( 3 ; 25 ; 32 ; 40 ) which is structurally separate from the container wall ( 2 ), characterized in that at least one projection ( 10 , 11 , 12 ) which projects transversely to the container wall in the direction of the container interior is formed on the container wall ( 2 ), which projection, while supporting the container base ( 3 ; 25 ; 32 ; 40 ), engages transversely to the base plane in a receptacle ( 14 ; 28 ; 35 ; 43 ) on the container base ( 3 ; 25 ; 32 ; 40 ) which is open towards the inside of the container wall ( 2 ). 2. Packaging container according to claim 1, characterized in that the container wall ( 2 ) runs into the projection ( 10 , 11 , 12 ) at its bottom end. 3. Packaging container according to claim 1 or 2, characterized in that the projection ( 10 , 11 , 12 ) is arranged at right angles to the container wall ( 2 ). 4. Packaging container according to one of the preceding claims, characterized in that the projection ( 10 , 11 , 12 ) on the container wall ( 2 ) is formed substantially continuously in the circumferential direction thereof and that the receptacle ( 14 ; 28 ; 35 ; 43 ) on the container base ( 3 ; 25 ; 32 ; 40 ) is formed substantially continuously in the circumferential direction thereof. 5. Packaging container according to one of the preceding claims, characterized in that the container wall ( 2 ) can be attached to the container base ( 3 ; 25 ; 32 ; 40 ) in a circumferentially closed manner. 6. Packaging container according to one of claims 1 to 4, characterized in that the container wall ( 2 ) can be attached to the container base ( 3 ; 25 ; 32 ; 40 ) in an open manner in the circumferential direction. 7. Packaging container according to claim 6, characterized in that the ends of the container wall ( 2 ) which is open in the circumferential direction can be connected to one another, in particular welded, glued or locked. 8. Packaging container according to one of the preceding claims, characterized in that the container base ( 3 ; 25 ; 32 ; 40 ) is formed in one piece. 9. Packaging container according to one of the preceding claims, characterized in that the container base ( 32 ) has at least one locking lug ( 33 ) and the container wall ( 2 ) with the projection ( 10 , 11 , 12 ) can be locked into the container base ( 32 ). 10. Packaging container according to one of the preceding claims, characterized in that the container base ( 25 ; 40 ) comprises at least two base parts ( 26 , 27 ; 41 , 42 ) which are delimited from one another in the direction of the base plane, of which the one, inner base part ( 26 ; 41 ) is arranged towards the interior of the container and the other, outer base part ( 27 ; 42 ) is arranged towards the exterior of the container, and which each have a part of the wall ( 29 , 30 ; 46 , 47 ) of the receptacle ( 28 ; 43 ) and can be connected to one another to form the receptacle ( 28 ; 43 ). 11. Packaging container according to claim 10, characterized in that the inner base part ( 41 ) can be locked to the outer base part ( 42 ). 12. Packaging container according to one of the preceding claims, characterized in that the container base ( 3 ; 25 ; 32 ; 40 ) is designed as a stacking base with a stacking edge ( 23 ; 31 ; 37 ; 48 ). 13. Packaging container according to claim 12, characterized in that the stacking base is in two parts, wherein the stacking edge ( 31 ; 48 ) is formed on the outer base part ( 27 ; 42 ). 14. Packaging container according to one of the preceding claims, characterized in that the container wall ( 3 ) is made of lightweight panel elements. 15. Packaging container according to one of the preceding claims, characterized in that the container base ( 3 ; 25 ; 32 ; 40 ) is at least partially made of foam, in particular expandable polypropylene.