EP2103421A2 - Storage container for waste, valuable substances and similar - Google Patents

Abstract

The container (2) has a rectangular receiving body (4) limited by multiple container walls (5-10). One of the container walls is sectionally formed in double layers with an inner shell and an outer shell, which are connected with each other, and provided with groove shaped recess and dents (13, 14). The groove shaped recess and dents are formed by chamfers (15) of the container walls in an opposite direction. The container walls have a set of lamellar wall sections between the chamfers.

Description

The present invention relates generally to a collection container for collecting bulk material such as waste, recyclables and the like. In particular, the invention relates to a press container with an approximately cuboid receiving body, which is bounded by a plurality of container walls, five sides including the top formed closed and is provided at one end with a press opening.

Depending on the purpose and type of collected collecting material collection containers must be more or less solid, in particular, the side walls must have a high rigidity, so they do not bulge under the burden of the bulk material filling. Particularly in the case of press containers, in which the collecting material is pressed into the receiving body or storage space, high pressures occur in the collecting container. Such press containers are closed on five sides including the top and usually have at one of its end faces a press opening, wherein said press end is connected to the above a filling opening in a press room given collecting material by means of a plunger into the collection container pressed into it. High pressure loads occur here not only on the wall of the collecting container opposite the press, but also on the sidewalls which usually extend parallel to the press-in direction and which can become particularly large, especially in the case of heavy, wet and highly compressible materials. Due to the high compression pressures just the long side walls are claimed on bulges.

In order to be able to withstand such pressure loads by the pressed-in material, it has already been proposed to surround the side walls with belt-shaped stiffening ribs, which may in particular be formed by T-shaped or U-shaped carrier profiles, which are welded onto the side walls from the outside. It is known to guide such belt-shaped stiffening ribs horizontally or vertically over the entire side walls, wherein it has also been proposed to weld horizontal and vertical straps in the manner of a spider web-shaped skeleton on the side wall. Such belt-shaped stiffening ribs on the side walls of press containers show, for example, the DE 10 2005 054 986 B3 or the DE 19609246 ,

By such stiffening straps, however, the outside of the collecting container receives a cassette-like structure with many corners and edges, to which people can bump into the collecting container. In addition, dirt and grime collects on the stiffening ribs, with the stiffening straps also posing the danger of getting stuck when driving by. It is also difficult to apply on such a structured outside outside signs, billboards or billboards.

In order to avoid such problems, attempts have already been made to dispense with the outer straps. However, laying on the inside of the container wall is not readily possible, since this hinders the filling of the container, in particular when the straps extend transversely to the pressing direction. However, even with running parallel to the pressing direction stiffening straps on the inside The waste accumulate on it and in particular hinder the emptying of the container.

It has therefore already been attempted to dispense entirely with such stiffening straps. This has been tried in particular by the use of high-strength structural steels for the wall panels, which indeed brings an increase in stiffness with suitable geometry of the container walls, but significantly increases the cost of materials and possibly also complicates the production, as certain high-strength steels difficult to process are.

Proceeding from this, the present invention seeks to provide an improved collection container of the type mentioned, which has a sufficient rigidity of the container walls even for high loads, without buying this through an excessive structural weight, and does not hinder the frontal pressing of the collection material.

According to the invention, this object is achieved by a collecting container according to claim 1. Preferred embodiments of the invention are the subject of the dependent claims.

It is therefore proposed to integrate the stiffening contours, which increase the area moment of inertia with respect to bending, into the container wall and to form the container wall itself in such a way that it itself acquires increased rigidity against bulges. This so-called self-supporting, self-stiffening structure is inventively created in that at least one of the container walls is at least partially double-shelled with inner shell and outer shell, which are interconnected, is formed and provided with channel-shaped inputs and / or bulges. This combination of measures significantly increases stiffness without purchasing it with high weight. At the same time an overall reasonably smooth inner and outer surface is achieved, which hinder neither the filling nor the emptying of the container and also facilitates the use of the outer surface as a billboard or advertising space. The trough-shaped Bumps and bulges form as it were stiffening beads or bumps, which increases the area moment of inertia of the container wall with respect to bending stresses around lying in the wall bending axes considerably. In addition, the rigidity is further increased by the at least partially provided double peel, so that a high rigidity against bulging of the container wall is achieved with a total of thin wall thicknesses and without high-strength steels. The high rigidity is thus accompanied by low construction weight and easy processing of the wall material.

The aforementioned channel-shaped bulges and bulges can basically be contoured differently. In particular, the channel-shaped indentations and bulges are formed by opposing folds of the container wall, which may have flat, strip-shaped wall sections between the folds. In the area of the bends, of course, sufficient square radii can be maintained. Incidentally, it is advantageous if the wall sections between the folds are flat. The combination of folds and flat wall sections combines high rigidity and simple production.

As an alternative to such folds, the bulges and bulges could also be contoured arcuately, for example in the form of adjoining, oppositely curved Bogensegementen, in particular circular arc segments. Preferably, however, the aforementioned training with bends and flat, strip-shaped intermediate sections, which brings a sufficiently high rigidity with simpler production.

The channel-shaped indentations and bulges are advantageously aligned parallel to a main axis of the collecting container. In particular, all channel-shaped indentations and bulges can extend parallel to the pressing axis, along which the material is pressed into the collecting container. As a result, on the one hand, the tensile strength of the container wall in the pressing direction is maintained. On the other hand, the pressing of the material is not hindered. advantageously, the container walls are formed in the press-in on its inside undercuts. The abovementioned pressing direction here usually extends perpendicularly to an end face of the collecting container, in which a press opening is provided, through which the collecting material is pressed into the collecting container through a press. On the said front side, a suitable press can be detachably mounted or firmly connected. In particular, the inner sides of the container walls are substantially over the entire container length, ie formed in the pressing direction, undercuts and shaped like an extruded profile, so that the pressed groupage can be compressed without obstruction between the frontal injection opening and the opposite container end face. If the injection opening is advantageously provided approximately centrally in one of the end faces, the contours of the extruded profile advantageously extend approximately horizontally and / or parallel to the longitudinal axis of the container.

In order to achieve a particularly high rigidity, the double-shell section of the container wall can also be provided with channel-shaped indentations and bulges, wherein at least one indentation or at least one indentation can be provided on the outer shell and / or on the inner shell.

In principle, the entire container wall can be double-shelled, resulting in increased rigidity over the entire surface of the container wall. Advantageously, however, the Doppelschaligkeit is limited to the range of maximum Ausbeulge risk or provided only in the area in which the container wall is subjected to maximum bending. In particular, the double-shell section may be limited to a central region of the container wall, wherein in an advantageous embodiment of the invention, a horizontal strip of up to one-third of the total width or height of the container wall may be double-shelled. With only partial double-shelling, the rigidity of the container wall is increased only where it is actually required, thus combining high low-weight buckling strength equally.

Advantageously, both the inner shell and the outer shell are provided with at least one groove-shaped stiffening contour in the double-walled section of the container wall, wherein advantageously the inner shell and the outer shell bulge in opposite directions, in particular such that the outer shell of the double-walled section bulging at least one outwardly to the container outside Bulge and the inner shell has a bulging to the inside of the container bulge. As a result, a maximum wall thickness is achieved in the region of the double shell, which causes a maximum area moment of inertia and thus maximum rigidity.

In an advantageous embodiment of the invention, the wall thickness of the double-walled section, i. the distance from inner shell to outer shell and the depth or height of the bulges and bulges coordinated. A good compromise between high stiffness on the one hand and relatively low unevenness of the wall surface on the other hand, can be achieved in that the indentations and bulges have a depth or height which is between 40% and 160% of the thickness or wall thickness of the double-walled section. If, in the aforementioned manner, the inner shell and the outer shell of the double-walled section are structured to bulge outwards in opposite directions, the depth of a single recess or bulge can preferably be about 50% of the wall thickness of said double-walled section. If only the outer shell is provided with a bulge or if the bulges and bulges are restricted to a non-double-walled area of the container wall, the depth of the indentations or the height of the bulges can advantageously be between 100% and 150% of the thickness or wall thickness of the double-walled section be.

The number of indentations and bulges of the container wall can basically vary. On the one hand to cause a high degree of stiffening and on the other hand to have no finely structured surface with excessive beads and saddles can be provided in an advantageous development of the invention between 3 and 15, preferably between 5 and 8 folds on a container wall be. The bends can basically be designed differently strong, in a preferred embodiment of the invention, the bends include an obtuse angle between 160 ° and 200 °, preferably between 170 ° and 190 °.

In order to maximize the effect of the double wall in terms of increasing the rigidity, in an advantageous embodiment of the invention between the inner shell and outer shell at least one stiffening element may be provided, which advantageously connects the inner shell and the outer shell with each other. In an advantageous embodiment of the invention may be arranged between the inner and outer shell at least one stiffening strut, are supported by the inner and outer shell to each other. For example, a stiffening belt between inner shell and outer shell can be integrated as a support strut. In particular, the inner and outer shells of the double-shell wall section are rigidly connected to each other by at least one support strut and spaced from each other, wherein preferably the support strut forms a preferably parallel to the wall kink direction extending stiffening belt.

Alternatively or additionally, the interior formed between the inner and outer shell can be foamed with a support foam. As a result, an additional increase in rigidity is achieved in a particularly easy way.

Fig. 1:

eine schematische, perspektivische Darstellung einer Presssammelvorrichtung mit einem Presscontainer und einer daran befestigten Presse zum Verpressen und Sammeln von Sammelmaterialien wie Abfall oder Wertstoffen, wobei der Sammelcontainer nach einer bevorzugten Ausführung der Erfindung an seinen Wänden mit horizontalen, rinnenförmigen Ausbuchtungen und Einbuchtungen versehen ist,

Fig. 2:

eine perspektivische Innenansicht einer Seitenwand des Sammelcontainers aus Fig. 1, die die Abkantungen und die doppelwandige Ausbildung der Containerwand zeigt, und

Fig. 3:

einen Querschnitt durch eine Seitenwand des Sammelcontainers aus Fig. 1, die deren doppelwandigen Mittelabschnitt sowie deren Abkantungen zeigt.

The invention will be explained in more detail below with reference to a preferred embodiment and associated drawings. In the drawings show:

Fig. 1:

a schematic, perspective view of a press-collecting device with a press container and an attached press for pressing and collecting collection materials such as waste or recyclables, the collection container is provided according to a preferred embodiment of the invention on its walls with horizontal, gutter-shaped bulges and indentations,

Fig. 2:

an inside perspective view of a side wall of the collection container Fig. 1 showing the folds and the double-walled design of the container wall, and

3:

a cross section through a side wall of the collection container Fig. 1 , which shows their double-walled middle section and their folds.

In the Fig. 1 drawn embodiment of the press-collecting device 1 comprises a - roughly speaking - cuboid collecting or pressing container 2, at one end face of a press 3 is arranged, wherein in the illustrated embodiment of the press container 2 and the press 3 together a roll container unit with rollers 21 at opposite ends form, which is mounted on a coupling piece 22 in the form of a gripping hook, which is arranged in the illustrated embodiment on the end face of the press-collecting device 1 formed by the press 3, in a conventional manner by a likewise known loading vehicle, raised and can be pulled on the back of the loader vehicle.

The press container 2 has on its front side facing the press 3 in the container wall 5 provided there, a press opening 17 which extends substantially over the lower half of the press-side end wall 5 of the collecting container 2. The press opening 6 is assigned to the Ausschubquerschnitt the press 3, so that through the press opening 6 through the collecting container 2 can be filled with the respective collecting material.

The press 3 has in the illustrated embodiment on its upper side a filling opening 23 which is laterally limited in the illustrated embodiment of obliquely upward side wall portions 24 extending from the upper edge of the end face of the press 3 to the upper edge of the higher collection container 2 , see. Fig. 1 ,

As Fig. 1 shows, the press container 2 has a substantially cuboid receiving body 4, which is bounded by the opposite, front-side container walls 5 and 6, the two substantially rectangular side walls 7 and 8 and the ceiling and the bottom forming container walls 9 and 10, see , Fig. 1 , The container walls mentioned are summarized in the area of the end walls 5 and 6 with frame-like connection frame 25 and connected to each other. As Fig. 2 shows, while the container walls comprise end-mounted connection frame pieces 25a, by means of which they can be assembled accordingly.

As Fig. 1 shows, the side container walls 7 and 8, which are most prone to bulging, as well as the ceiling forming the container wall 9 is provided with a stiffness-increasing Abkantungsstruktur. In principle, the container wall forming the bottom 10 could also be designed accordingly. There, however, shelf supports 26 are regularly provided, on the one hand form the footprint of the press container unit and on the other hand support the container floor stiffening. The front-side container walls 5 and 6 could in principle be provided with said folded structure, but there is less danger of bulging, so that there may possibly be dispensed depending on the circumstances on such a structure.

The Fig. 2 and 3 show the folded structure of a side wall 7 and 8 closer. In contrast to conventional container walls, which are substantially flat or slightly barrel-shaped, the container wall is alternately bent back and forth, so that the material of the container wall itself channel-shaped recesses 13 and 14 forms. As Fig. 2 shows, the folds 15 extend substantially horizontally and thus parallel to the main axis of the press container 2, so that the channel-shaped indentations and bulges have a longitudinal axis parallel to the main axis of the press container 2. The folds 15 are advantageously spaced from each other at different distances, so that the indentations and bulges have different widths, which extends at the drawn horizontal curve upwards, ie the gutter width would be at the sidewall according to Fig. 2 measured in the vertical direction. In the illustrated embodiment, five bends are provided on a side container wall 7 and 8, resulting in two indentations and three bulges, as this Fig. 3 shows closer.

Between the folds 15, the corresponding wall portions are formed flat, so that strip-shaped, planar connecting portions 15 result between the folds, which connect two adjacent, opposite folds together.

As Fig. 3 shows, the wall sections are bent at the folds 15 only relatively slightly. The folds 15 define obtuse angles in the range between 160 ° and 200 °, in particular approximately between 170 ° and 190 °, so that the container wall as a whole receives a slightly wavy structure, but which is still reasonably flat.

As the Fig. 2 and 3 show, the container wall 7 and 8 in a strip-shaped central portion, ie approximately halfway between the lower edge and upper edge of the press container 2, double-shell, wherein the outer shell 12 and the inner shell 11 formed in the double-shell portion also in the aforementioned manner Have folds 15, so that the inner and outer shells 11 and 12 each slightly bulge. As Fig. 3 shows, the outer shell 12 forms a bulge to the outside, while the inner shell 11 bulges out to the container inside. The wall thickness or thickness 19 of the double-shelled section thereby corresponds substantially to twice the depth or height 18 of a simple bulge 14.

The field of double-shell training is here, as the Fig. 2 and 3 show, limited to a strip-shaped central portion, which can roughly - make up to one-third of the height of the side wall or the width of the ceiling and is provided in the region of greatest bulge stress. In the upper and lower margins, however, is the in Fig. 2 shown container wall formed einschalig.

The inner shell 11 and the outer shell 12 are advantageously supported on one another by at least one support strut 20 integrated into the intermediate space between the two shells and firmly connected to one another, whereby the rigidity is increased even further. Advantageously, a plurality of such support struts 20 may be arranged, which may advantageously be arranged in the region of the folds of inner and outer shell 11 and 12, respectively.

In the illustrated embodiment according to Fig. 2 are the aforementioned support struts 20 in the form of belt-like stiffening struts, which extend along the folds 15 of the inner and outer shell.

Alternatively or additionally, the interior of the double-shell wall section formed between the inner and outer shell can be foamed with a supporting foam, whereby a further increase in rigidity can likewise be achieved.

In order to achieve a high corrosion resistance to external influences and an impeccable external appearance, the outer side of the container wall is formed without welding seams in an advantageous development of the invention. The inner shell 11 of the double-shelled section can be welded from the inside to the outer shell 12, while said outer shell 12 is part of the folded container wall, which forms the outer shell.

As Fig. 3 shows, the container wall 7 and 8 already has a relatively smooth outside, since the bends are kept relatively flat. In order to be able to use the outside of the press container 2 even better as an information carrier or tablet, the invention can preferably be stretched over the outside of the container wall, preferably a slippery information carrier, for example in the form of a cloth, a film or a suitable fabric, which in Fig. 3 designated by the reference numeral 27.

Claims (15)

Collection container, in particular press container, for collecting collection material such as waste, recyclables and the like, with a preferably approximately cuboid receiving body (4) of a plurality of container walls (5, 6, 7, 8, 9, 10) is limited, characterized in that at least one of the container walls (7, 8, 9) at least partially double-shelled with an inner shell (11) and an outer shell (12), which are interconnected, is formed, and with trough-shaped indentations and bulges (13, 14) is provided. Collecting container according to the preceding claim, wherein the channel-shaped indentations and bulges (13, 14) are formed by opposing folds (15) of the container wall (7, 8, 9). Collecting container according to the preceding claim, wherein the container wall (7, 8, 9) between the folds (15) has flat, strip-shaped wall sections (16). Collecting container according to one of the preceding claims, wherein in one end face (5) of the collecting container a press opening (17) is provided, through which the collecting material along a container main axis in the five sided including the container top closed collecting container can be pressed, wherein at least the two to said end face (5) adjacent side walls (7, 8) with said channel-shaped recesses and bulges (13, 14) are provided, which extend parallel to said main container axis, the inner sides of the container walls substantially over the entire container length parallel to the container main axis without undercuts are formed. Collecting container according to one of the preceding claims, wherein the at least one container wall (7, 8, 9) also has in its double-shelled section on the outer shell and / or on the inner shell at least one groove-shaped recess and / or at least one groove-shaped recess. A collection container according to the preceding claim, wherein the outer shell (12) has a bulge (14) towards the container outside and the inner shell (11) has an opposite bulge (14) towards the inside of the container. A collection container according to any one of the preceding claims, wherein the lobes (13, 14) have a depth or height (18) comprised between 40% and 160% of the thickness (19) of the double-skin section, preferably about 40% to 60%. the thickness of the double-shelled section is. Collecting container according to one of the preceding claims, wherein the double-shelled portion is limited to a central region of the container wall (7, 8, 9), preferably to a median strip of up to one third of the total width of the container wall (7, 8, 9). Collecting container according to one of the preceding claims, wherein the at least one container wall (7, 8, 9) between 3 and 15, preferably between 5 and 8 has bends (15). Collecting container according to one of the preceding claims, wherein the folds (15) include an obtuse angle between 160 ° and 200 °, preferably between 170 ° and 190 °. Collecting container according to one of the preceding claims, wherein the inner and outer shells (11, 12) of the double-shell portion by at least one support strut (20) which is arranged between the inner and outer shell, supported on each other. A collection container according to the preceding claim, wherein the at least one support strut forms a preferably L-, T-, double-T- or U-shaped stiffening belt which is integrated between the inner shell (11) and the outer shell (12). Collecting container according to one of the preceding claims, wherein between the inner and outer shell (11, 12) formed inner space is filled with foam foam. Collecting container according to one of the preceding claims, wherein the folds (15) on a container wall (7, 8) are spaced from each other different distances and / or between the folds (15) different width wall strips (16) are provided. Collecting container according to one of the preceding claims, wherein on the outside of the receiving body, a preferably pliable information carrier shell is stretched, which rests on the bulges (14) and spans contact over the indentations (13).

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