DE20201531U1 - Stack / nest container with hollow rim - Google Patents

Description

PATENT AND LAWYERS MEINKE ₁ DABRINGHAUS UND PARTNER GbR

admitted to the European Patent Office and Community Trademark Office European Patent and Trademark Attorneys*

JULIUSMEINKE ₁ DIPl-ING. WALTER DABRINGHAUS, dipl-ing.

01 531 9 jochen meinke, dipl.-ing.

======= LAWYER

THOMASMEINKE

ROSA-LUXEMBURG-STRASSE 44141 DORTMUND

TELEPHONE (0231)58 41 90 TELEPHONE (0231) 14 76 70 info @ patent-recht.de

PO BOX 10 46 45

44046 DORTMUND, 02 . September 2002

DRESDNER BANK AG DTMD, Account No. 1 148 047 (bank code 440 800 50) POSTBANK DORTMUND, Account No. 542 02-463 (bank code 440 100 46)

FILE NO. 62/16784 D/Dr

Applicant: Ringoplast GmbH, Großringer Straße 24, 49824 Rinae-Neuqnadenfeld

"Stack and stack container with hollow rim "

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¹ rotating stack !container with hollow rim'

The invention relates to a stackable container made of plastic, in particular for use in the food
processing industry, of the type specified in the preamble of claim 1.

Such so-called stacking containers are available in different
Constructions known e.g. according to DE-195
01 973-Al or DE-43 05 557-Al. The design is such that in one assignment the boxes
can be stacked on top of each other at a distance, ie when filled, the box above does not slide into the box below. However, when the boxes are empty, they can be turned 180° in the plane and then fall into each other to save space,
so that they then transport significantly less
take up volume.

Just as a further example, an advertising document
of the Belgian company DIDAK, with which they launched their "&Egr;-Evolution range" as "stackable and in no time
nestable food boxes".

It has been shown that handling the known boxes can be problematic because, for example, when objects are relatively difficult to transport, there is a risk that the crossbars forming the handles in the upper edge area of the boxes will break when loaded. For the design of the handles, see DE-43 17 300-C2 or DE-199 61 480-Al. The bars, which are usually open to the outside, also offer a wide range of sources of dirt, which then have to be removed with great effort when rinsing or cleaning the boxes.

This is where the invention comes in, the task of which is to create such a rotating stacking box that provides a more break-resistant design of the handles on the box as well as a largely closed edge structure to simplify cleaning.

In a stack-and-stacking container of the type described above, this task is solved in that the upper container edge is designed as a completely closed hollow body.

The inventive design of the upper container edge not only strengthens the carrying handles, but also makes cleaning the stack-and-stay containers considerably easier thanks to the closed contour of the container edge.

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Embodiments of the invention emerge from the subclaims, wherein it is particularly expedient to design the stack supports as completely closed hollow chambers, here too not only a reinforcement results, but also a simplification of cleaning.

The hollow chambers can be produced by means of a gas or water internal pressure process; the invention provides a corresponding procedure here, whereby the container edge including the stack supports can also be designed as completely closed hollow chambers according to the invention.

A further embodiment of the invention consists in that the side walls step back approximately in the middle, as is known in stacking containers, from an inner dimension of smaller dimensions to an inner dimension of larger dimensions without outward-facing, horizontally extending reinforcing ribs in this step region.

Compared to the known rotating stack containers, a further embodiment according to the invention can also consist in dispensing with stiffening ribs on the outer walls of the stack containers.

Further features, details and advantages of the invention will become apparent from the following description and the drawing. This shows in

Fig. 1 shows a spatial representation of an embodiment of a rotating stacking container according to the invention,

Fig. 2 a side view of the long side of the stacking container,

Fig. 3 a side view of the transverse side of the stacking container,

Fig. 4 a top view of the stacking container and the

Fig. 5 to 9 different detailed sections through areas of the stacking container with the section details in Fig. 2 to 4.

The rotating stacking container, generally designated 1 and shown three-dimensionally in Fig. 1, has a base surface 2, two longitudinal side walls 2 and two shorter transverse walls 4, each of which is provided with openings, which, however, are not important here, in particular not the geometric

see formation and distribution of these breakthroughs, generally designated 5.

As can be seen from Fig. 1, for example, handle openings 12 are provided in the respective middle of the longitudinal walls 3 and transverse walls 4 below the container edge 6, wherein the handle edge areas designated 6a are designed as a completely closed hollow body, as can be seen in particular from Fig. 8 as a sectional drawing.

The longitudinal and transverse walls of the rotating stack container are stepped approximately in the middle in their longitudinal direction. This is also shown in the cross sections in Figs. 5 to 9, with the step edge generally designated 7. In the upper wall area of the longitudinal walls 3, recesses designated 8 and 8a are formed asymmetrically, while stack supports designated 9 and 9a are formed in the outer edge areas below and steps 10 and 10a are formed immediately next to the recesses 8 and 8a in the upper edge.

As can be seen from the sectional figures 5 to 9, the stack supports 8, 8a are designed as hollow bodies, with the interior opening into the upper container edge 6 designed as a hollow body. At its lower edge associated with the base 2, each stack support 9 or

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9a in turn has a small, inward-pointing recess 11 or 11a, such that, for example, in the same position as the illustration shown in Fig. 1, a second, further rotary stacking container placed above the rotary stacking container 1 with its stack supports 9 and 9a engages in the upper stepped recesses 10 and 10a with its outer recesses 11 and 11a, so that the box cannot sink further downwards.

If the rotating stack container placed above it is also pivoted by 180° in the plane, the stack supports 9a fall into the recesses 8 and the stack supports 9 into the recesses 8a, so that the corresponding rotating stack container falls at least halfway into the rotating stack container located below it.

Of course, the described embodiment of the invention can be modified in many ways without departing from the basic idea. In particular, the invention is not limited to the illustrated design and arrangement of the recesses 5 or the handle recesses 12. The handle recesses 12 can be slightly curved on their underside to make it easier to insert the hands, etc. As can be seen from the figures, the rotating stacking containers according to the invention can be designed without horizontally extending reinforcing ribs in the step area

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but can also be designed without vertical reinforcement ribs on their outer edge areas. This is not least because the edge 6 is designed as a closed hollow body.

Claims (6)

1. Rotating stacking container made of plastic, in particular for use in the food processing industry, with essentially closed and/or perforated base and side walls and with support recesses in the upper container wall areas and with asymmetrically arranged column-like stacking supports and correspondingly asymmetrically arranged, corresponding recesses acting on at least half of the side walls, characterized in that the upper container edge ( 6 ) is designed as a completely closed hollow body. 2. Rotating stacking container according to claim 1, characterized in that the stack supports ( 9 , 9a ) are designed as completely closed hollow chambers. 3. Rotating stack container according to claim 1 or 2, characterized in that the container edge ( 6 ) including the stack supports ( 9 , 9a ) is designed as a completely closed hollow chamber. 4. Stackable container according to one of the preceding claims, characterized in that the hollow chamber has been produced by means of a gas or water internal pressure process. 5. Rotating stacking container according to one of the preceding claims, characterized in that the side walls ( 3 , 4 ) approximately centrally, as is known in stacking containers, step back from an inner dimension of smaller size to an inner dimension of larger size ( 7 ) without outwardly pointing, horizontally extending reinforcing ribs in this step region. 6. Rotating stacking container according to one of the preceding claims, characterized in that the outer walls ( 3 , 4 ) of the stacking container ( 1 ) are designed without vertical stiffening ribs.