WO2000000410A1

WO2000000410A1 - Two-compartment packing container

Info

Publication number: WO2000000410A1
Application number: PCT/EP1999/004410
Authority: WO
Inventors: Lutz Stache
Original assignee: Ahg Baustoffhandels Gmbh & Co. Kg
Priority date: 1998-06-26
Filing date: 1999-06-25
Publication date: 2000-01-06
Also published as: DE19830039A1; AU4777799A

Abstract

The invention relates to a two-compartment packing container (1) for packing two constituents (4, 5) of a building material mixture which have to be kept apart until they are processed. Said packing container comprises two compartments (2, 3), each forming a differently sized filling space for receiving the individual constituents. The filling openings of the packing container are configured in such a way that they can be sealed, and are surrounded by an edge flange (2.1, 3.1). The compartments are moulded from plastic. Means (7, 13, 34, 35) for increasing the wear-resistance of the packing container are provided at least on the larger compartment (3).

Description

Two-chamber container

The invention relates to a two-chamber container for packaging components to be kept separate until processing of a building material mixture with two chambers of different sizes for receiving the individual components, the filling opening of which is designed to be closable and surrounded by an edge flange in which the chambers are formed from plastic material and at least the larger chamber has means for increasing the load-bearing capacity of the container.

From European patent application EP 0 556 638 A1, a double cup made of plastic is known for the separate holding of different filling goods. For both cup parts, a common edge flange is provided with a line of weakness forming a hinge, so that after removing a cover provided on the two cup parts by folding it over, it is possible to fill the contents of one cup part into the second cup part.

The known double egg cup is disadvantageously stackable due to the flat, smooth bottom of its two cup parts, since the stacked double cup can slip on the base formed by the bottom of one cup part of the supporting double cup with a slight inclination of the support or in the event of vibrations. As a result, in particular, safe transport of multi-layer palletized double beakers of the known type is not possible or is possible only to a limited extent. In addition, because of the limited rigidity of the walls or the floor area, only small amounts of filling material or only filling material with a relatively low weight can be filled in, without undesired deformation of the cup parts which hinders transport or possibly destruction, for example by the formation of Cracks due to mechanical overloading of the wall of the cup parts delimiting the filling space is to be expected.

Based on the shortcomings of the prior art, the invention is therefore based on the object of developing a two-chamber container of the type mentioned at the outset in such a way that the container can be used for transport in stacked and / or palletized form and for taking up larger and / or a large mass having filling quantities is suitable.

The object is achieved by the features specified in the characterizing part of claim 1.

The invention includes the knowledge that a two-chamber container for receiving granular and / or powdery, bulk material components of a building material mixture is advantageously suitable if the chambers are made of plastic material and means for transporting or handling the Containers necessary increase in tensile strength or load capacity can be provided.

According to the preferred embodiment of the invention, on the outside of the chamber wall of the larger chamber as a means of increasing the tensile strength of the container, a carrying net or net-like or armored by rope strands forming a carrying frame are provided. The carrying nets or the belt straps absorb the weight load caused by the relatively large mass of the components of the building material mixture and which is too great for the film material and thereby prevent excessive deformation of the filling chambers or cracking in the wall of the chambers of the container inserted into the carrying net or the carrying part .

Particularly good results can be achieved if the straps are connected to the outer chamber wall by gluing. According to an advantageous variant of the invention, handles arranged in pairs for handling the container are provided on the net or on the belt straps of the carrying frame. According to a favorable development of the invention, feet are formed on the base plate of the larger chamber of the container, so that a free space is accessible under the container. The height of the feet is chosen such that the lifting devices of the transport devices required because of the relatively large weight of a container filled with the components of a building material mixture, for example the support arms of a forklift, can be conveniently pushed under the container for lifting and transporting.

In order to ensure optimal space utilization of the vehicles used to transport the filled containers to the place of use, the chambers of the container are essentially cuboid. On the one hand, they can be stacked particularly well and placed on pallets for vehicle transport; on the other hand, the available transport volume is almost completely filled by stacked containers.

According to a variant of the invention, the chamber with the smaller filling space has a floor area which is slightly smaller than the filling opening of the larger chamber. At the same time, the walls of the chambers are inclined towards each other and approach each other towards the floor. The distance between the walls is such that the smaller of the chambers can be conveniently inserted from above into the larger chamber, which serves as a mixing chamber for producing the building material mixture, the edge flange of the inserted chamber being supported on the edge flange of the larger chamber. By arranging the chambers of the container, an unused empty space is advantageously avoided and the required transport volume is reduced.

The chambers, which are advantageously formed in the spray material process, are preferably cuboid in shape and are closed after filling by a closure, for example a cover or a film. They have a common flange area with a molded hinge or with a line of weakness forming a hinge. As a result, the smaller chamber can be folded upside down onto the larger chamber to form a favorable transport configuration of the container. In this embodiment, the contents of the smaller chamber can be conveniently poured into the larger chamber serving as a mixing chamber by folding the smaller chamber onto the mixing chamber after the closures covering the filling openings of the chambers have been removed.

To ensure safe transport of containers stacked, preferably on pallets To achieve this embodiment, it is advantageous if the opposite sides of the container during transport are at least positively engaged by holding means in such a way that this connection can absorb the horizontally directed force components which arise during transport and which act on the stacked containers and could lead to an undesirable shifting of the load.

According to an advantageous development of the invention, two parallel side edges of the bottom of the larger chamber of the container are therefore designed as a bead. The smaller chamber has as a holding means on two correspondingly parallel side edges of its base at the appropriate distance in each case a peripherally formed groove, the cross-sectional profile of which corresponds essentially to the cross-sectional profile of the bead.

The dimensional stability of a two-chamber container can be increased in a simple manner if the walls and the bottom of the chambers are made of a profiled material and have sufficient struts or webs.

According to an advantageous variant of the invention, beads extending parallel to the boundary edges are provided in the wall surfaces and / or the bottom surface of the individual chambers, so that the walls delimiting the chamber have increased rigidity. These beads, which preferably have a U-shaped cross-sectional profile, are advantageously molded in during the manufacture of the chambers.

According to a further variant of the invention, grip means for handling the container are preferably provided on the larger chamber. The grip means are designed as a handle formed on the edge flange of two opposite wall regions of the wall of the larger chamber on the outside of the chamber.

According to a favorable further development, two recessed handles, which are each formed at the same height, are provided as grip means, which are molded into the wall areas of the larger chamber that lie opposite one another on the outside. In order to enable the filled container to be carried comfortably, the handle means are arranged on the walls in such a way that the connecting line between the handle intersects a solder that has fallen onto the center of mass of the container.

According to a further preferred embodiment of the invention, the in The common flange area of the chambers arranged hinge locking means is provided, by which the hinge is blocked for a folding movement of the chamber with the smaller filling space below a below a minimum torque. The locking means are advantageously designed as a pin and the pin-receiving recess. They are engaged when the container is in the transport configuration and easily prevent an undesired pivoting movement of the smaller chamber of the container.

According to another advantageous embodiment of the invention, the chambers of the container have a wall thickness that changes in the circumferential direction. Such a variation in wall thickness is particularly advantageous in order to enable the containers having a relatively large mass to be stackable. Therefore, the wall thickness of the chamber broad sides facing one another when the two chambers are in the opened position has a greater value than the wall thickness of the chamber broad sides facing away from one another.

In order to ensure that no "dead space" can arise for the mixing devices used when mixing the building material components, the mixing chamber of the container preferably has an oval cross-sectional profile when viewed from above. The smaller chamber of the container, which is connected to the mixing chamber by a common edge flange area with a hinge line of weakness, also has an essentially oval cross-sectional profile - as seen from above - so that when filling the building material component in the smaller chamber into the mixing chamber favorably, no loss of volume due to spillage occurs. Such a loss of quantity would lead to a change in the optimal mixing ratio - and thus also to an undesirable change in the properties of the building material mixture.

It is equally favorable for the stackability and the palletizability of the containers if the wall regions of the opposite broad sides of the chambers connected by the common edge flange region are convex and the wall regions of the broad sides of the chambers facing away from one another have an essentially flat design. The convex areas contribute to better load distribution when stacking the containers. The outer, essentially flat, wall areas of the container ensure that the formation of unfavorable free spaces between the containers placed on a pallet is substantially avoided during palletizing and thereby lead to better utilization of the available transport space. According to an advantageous development of the invention, the ratio of the radius of the convex wall shape of the smaller chamber to the radius of the convex wall shape of the larger chamber has a value <1, in order to achieve in a simple manner that the entire amount of the in the smaller chamber when decanting located building material component to the larger chamber of the container for mixing without loss of bulk.

In addition, according to a favorable variant of the container according to the invention, two preformed sections arranged symmetrically to one another and to the weakening line are provided in the center of the edge flange area common to the two chambers. When swiveling the smaller chamber in the direction of the larger chamber, these material sections each fold into a web, through which the material flow is guided laterally when the mixture component is filled from the smaller into the larger chamber. The webs help to reduce the risk of loss of volume due to spilling material during decanting.

According to a further preferred variant of the invention, the chambers of the container have, in the opening area, essentially radially outwardly extending webs of short length, on which the respective edge flange is supported. The webs are evenly distributed around the circumference and stiffen the chambers sufficiently mechanically for the intended handling.

In accordance with a favorable development of the invention, a recessed grip is molded into the bottom of the smaller chamber. The recessed grip is accessible from the outside of the container and makes it easier to handle the smaller chamber when folding over in preparation for the mixing process.

For handling the container, for example during transport, on a construction site or during loading, the invention preferably provides gripping means which are arranged on the larger chamber of the container. For example, handles are integrally formed on the edge flange on two opposite walls or essentially opposite wall areas of the larger chamber on the outside of the chamber, lying at the same height.

According to an additional development of the invention, locking means are provided on the chambers of the container for securing the position when stacking the containers intended. The locking means are arranged as a cylindrical recess in the bottom of the smaller chamber and as a pin on the edge flange of the larger chamber and designed so that they come into operative engagement with a relative rotation of 90 ° or 180 ° of the containers to be stacked about their vertical axis. This locking means absorbs essentially horizontally acting force components, which occur in particular during the transport of palletized containers.

According to a variant of the invention, a further improvement in the handling of the container is achieved by a spacer which is arranged between the opposite side walls of the chambers of the container. This web is preferably integrally formed on the larger chamber and prevents the individual chambers from hitting each other when the container is being transported.

According to a further advantageous embodiment of the invention, the two-chamber container is designed in the manner of a shell case. The two unequal sized, shell-like chambers of the container form the half-shells of the shell case and are articulated on the edge flanges of two adjacent side edges and each have a separate film cover. Handle elements are formed on the joint-free edges of the two half-shells, which form carrying handles when the container is closed by collapsing the shells. On the half-shells or on the handle elements are preferably designed as a pin and bore locking means which come in pairs in releasable action when the half-shells are to be closed by folding. The positive and non-positive engagement of the locking means advantageously prevents the container from being opened unintentionally, for example during transport. The collapsed containers can be stacked, with bulges of low height being provided on the longitudinal edges of the bottom of the smaller shell, which serve to stabilize the position of stacked containers.

To protect against deformation when the container is opened, the side walls below the hinges have stops arranged on the outside, which hold the smaller chamber in a substantially horizontal position when the container has been opened to remove the protective films.

According to a development of the invention, the stops on one, preferably on the smaller chamber, each replaced by at least one roller, so that the container can be pulled on the rollers like a suitcase - with the half-shells folded - with little effort.

According to a preferred variant of the invention, the chambers of the container formed by the half-shells are covered by a one-piece protective film. In the joint area, the film has a separating element which extends across the entire film width. The separating element is connected to a pulling device which is accessible from the outside in the area of the container handle. When the container is folded and in the transport configuration, the film can be removed or separated from both chambers by means of the pulling device. The contents of the smaller, overhead chamber are emptied into the larger chamber provided as a mixing chamber, so that when the two building material components are brought together, a loss of material - and thus a reduction in the quality of the building material mixture to be produced - is avoided.

The half-shells of the container have a relatively low height, so that the mixing process for producing the desired building material mixture can be carried out very easily and no unmixed constituents remain.

The container according to the invention is preferably used for packaging components of a building material mixture which, before the mixture is produced, must be separated from one another and - at least partially - transported and stored in a protected manner against the action of moisture, in particular atmospheric moisture.

The components of a concrete mixture can be packaged particularly advantageously, the smaller chamber containing the dry binder, for example Portland cement, and the larger chamber already containing the required moisture sand in the desired grain size as an additive. The chambers are closed by a, preferably common, plastic cover film which can be welded to the edge flanges.

It is provided according to the invention to manufacture the two-chamber container by injection molding from suitable plastic granulate, for example from polyethylene or polypropylene granulate.

Other advantageous developments of the invention are in the subclaims characterized or are shown below together with the description of the preferred embodiment of the invention with reference to the figures.

Show it:

- Figure 1 shows a preferred embodiment of the invention in side view,

FIG. 2 shows the exemplary embodiment shown in FIG. 1 in a view from below,

3 shows a favorable development of the invention in side view,

- Figure 4 shows another advantageous embodiment of the invention in

Side view,

5 shows a variant of the invention in partial view from the side,

6 shows the representation of the view of a section along the line A ... A according to FIG. 5,

- Figure 7 is an illustration of the view of a section along the line

B ... B according to FIG. 5,

8 shows a further variant of the invention in a side view,

FIG. 9 shows the view of a section along the line C ... C according to FIG. 8,

- Figure 10 shows the variant of the invention shown in Figures 8 and 9 in

View from above,

- Figure 1 1 is a development of those shown in Figures 8 to 10

Variant on top view,

FIG. 12 shows an additional development of the invention in a side view,

FIG. 13 shows the view of a section along the line D ... D according to FIG. 12, FIG. 14 shows the development of the invention shown in FIGS. 12 and 13 in a partial view from above,

FIG. 15 shows the view of a section along the line E ... E according to FIG. 14,

- Figure 16 to 18 a further advantageous embodiment of the invention in

Top view and side view from left or right,

19 to 21 show a favorable further development of the embodiment of the invention shown in FIGS. 16 to 18 in a view from above and in a side view from the left or from the right,

- Figure 22 to 25 another advantageous embodiment of the invention in

Top view and side view from left or right,

- Figures 26 and 27 an advantageous development of the embodiment of the invention shown in Figures 22 to 24 in side view, and

- Figure 28 shows an additional variant of the embodiment of the invention shown in Figures 22 to 24 in side view.

The container 1 shown in Figures 1 and 2 in side view or view from below has two chambers 2 and 3 with different depths, in which the different components 4 and 5 of a building material mixture are filled. The chambers have an edge flange 2.1 and 3.1 and are cuboid in shape, a cuboid which tapers slightly downwards and is formed by a bottom, a circumferential side wall and an upper fill opening, the fill opening being in each case slightly larger than the bottom.

Due to the tapering of the cuboids, the chamber 2 can be inserted into the large chamber 3 serving as a mixing chamber in its filling opening after the chamber 3 has been filled. The edge flange 2.1 of the small chamber 2 is supported on the edge flange 3.1 of the mixing chamber 3, so that the container I can be closed by a common cover 6. The cover 6 made of an elastic plastic encompasses with its retaining tabs 6.1 both edge flanges 2.1 and 3.1, whereby the large chamber 3 is sealed moisture-tight by means of the small chamber 2 and the small chamber 2 of the container 1 by means of the cover.

The container 1 is inserted into a support frame 7 which has four belt straps 8, the ends of which are brought together on the bottom 3.2 of the mixing chamber 3 on the one hand and on the other hand are connected to the side walls 3.3 of the mixing chamber 3 by a strap strip 9 encompassing the mixing chamber. To mechanically relieve the chamber wall of the mixing chamber 3 and to prevent the container from being able to move within the carrying frame 7, there is an adhesive connection between the film 3.3 and the individual belt straps 8

I I provided.

Rope strands 10 are additionally incorporated into the belt straps 8 and the belt strap strips 9, which gives the carrying frame 7 increased tensile strength. The use of the glued support frame 7 compensates for the relatively low mechanical stability of the plastic material from which the chambers are formed, so that the chamber after filling with a relatively large mass component of the building material mixture or when transporting the container 1 is not inadmissibly strong can deform due to the corresponding weight load.

For a more convenient handling of the container 1, a handle tab 12 is formed on two oppositely arranged belt straps 8. The container 1 'shown in side view in FIG. 3 is inserted with its mixing chamber 3 into a coarse-mesh plastic network 13 in order to connect an undesired deformation of the chambers 2, 3 of the container when it is filled. At the upper edge of the network 13, two grip tabs 14 are provided in order to better handle the filled container 1 '.

On the bottom side, the chamber 3 has molded support feet 15. These form the corner points of the bottom surface of the mixing chamber 3. When a container is placed on a flat base, a space 16 remains accessible below the base surface 3.2, which offers the possibility, for example, of using a forklift for transporting or stacking containers.

The container 20 shown in a side view in FIG. 4 has two chambers 21, 23 for different filling quantities. Each of the cuboid chambers 21, 23 carries an edge flange 21 .1 and 23.1 at the fill opening, a flange region 25 common to both chambers having a weakening line 26 extending parallel to a boundary edge of the fill opening. This line of weakness forms a hinge through which the small chamber 21 of the container 20 is pivotally connected to the larger mixing chamber 23.

The filling openings of the chambers 21, 23 are covered by flat, moisture-proof closures 27, 28, so that the chamber 21 with the smaller filling space can be conveniently folded upside down onto the mixing chamber 23 to form the transport configuration of the container 20. The chambers can be fixed in the transport configuration by means of a clamping strip 29 or other suitable clamping or latching means, which non-positively connects the regions of the edge flanges 21 .1 and 23.1 opposite the pivot axis 26.

As already described in the explanations for FIG. 3, a network 13 is provided for the container 20 to stabilize the shape of the mixing chamber 23. For the purpose of good stackability and securing of position during transport, as is shown in detail in FIG. 5 with the aid of containers 20 stacked on a pallet 33, the chambers 21 and 23 of the container 20 each have holding means 30, 31, which on two side edges extending parallel to one another their bottom surfaces are molded. The holding means are designed as a bead 30 or as a groove 31 and have an essentially complementary cross-sectional profile. A slight oversize of the bead 30 creates a non-positive and positive connection between the holding means 30, 31 when two of the containers 20 are stacked one above the other in the transport configuration and the beads 30 are inserted into the corresponding groove 31. The holding means 30, 31 connected to one another in this way secure the relative position of the stacked containers 20 in the event of transport-related occurrence of horizontally directed force components. With the beads 30, when the container 20 is placed on a flat base, a free space is created under the bottom of the mixing chamber 23, which allows forklift trucks to be used to handle the filled containers.

As shown in the sectional views according to FIGS. 6 and 7, a profiling formed by beads is provided in the bottom and side walls delimiting the chambers 21 'and 23'. These beads 34 and 35 are - molded into the corresponding walls 23.2 'and 21 .2' and represent struts represent that increase the bending stiffness of the respective wall. The beads 34, 35 extend parallel to the axis of the chamber 23 'and give the chamber walls a sufficient rigidity, which ensures the dimensional stability of the filled container during storage and transport.

In Figures 8, 9, 10 and 11, a two-chamber container 50 is shown, in which the chambers 52, 53 filled with the components of the building material mixture are arranged next to one another in the transport configuration. Both chambers are connected to one another by a common flange area 58 and have a common film cover 51. The film cover 51 can be removed with the aid of a handle flap 51 .1 in order to be able to fill the chamber content 55 of the then open smaller chamber 53 by folding it into the open larger chamber 52. For this purpose, the common flange area 58 has a linear material weakening 58.1, which considerably simplifies the folding process.

The edge flange 56 is widened on the long sides of the container 50 and is provided here on its underside with a molded handle 57, in order to enable easy handling of the container filled with the components of the building material mixture.

Figure 1 1 shows a material-saving variant 50 'of the container, in which the handles 57' formed on both sides have a reduced width dimension. The handles are arranged symmetrically, the connecting line 70 between the handles 69 cutting a solder that has fallen onto the center of mass of the container 50 '.

FIGS. 12, 13, 14 and 15 show a container 60 in a transport configuration with chambers 62, 63 arranged next to one another and filled with the components of the building material mixture. In the larger chamber 62, a recessed grip 65 is formed in each of the two opposite walls below the edge flange . The recessed grips 65 provided for easy handling of the container are arranged at the same height in such a way that the connecting line 70 between the two recessed recesses cuts a solder that has fallen onto the center of mass of the container 60. A hinge is provided on the common flange area 66 between the large and the small chamber 62, 63 of the container 60, which hinge is formed by a shaft 67 formed on the larger chamber and two bearing blocks 68 connected to the smaller chamber and receiving the ends of the shaft 67 becomes. With this hinge, the smaller one Chamber 63 can be conveniently folded upside down onto the larger chamber 62 while emptying its contents 65.

The hinge is blocked by latching means, which are designed as pins 71 and recess 72 and engage in the latching position, until a torque introduced into the hinge exceeds a minimum value and detaches the latching means from one another. As a result, the container is secured against unwanted folding movement and forms a conveniently handled transport unit.

The two-chamber container 80 shown in FIGS. 1, 6, 17 and 18 has conically shaped chambers 81, 82 with an approximately oval cross-sectional profile when viewed from above, the wall thickness of the chambers being used to achieve a higher wall rigidity required when stacking the containers changes in the circumferential direction. The edge flanges 83, 84 of the chambers serve as a support for welding a plastic cover sheet (not shown). The opening area of the chambers 81, 82 is sufficiently mechanically stiffened by additional webs 85 and projections 86 on which the edge flanges 83, 84 are supported. The two chambers common edge region 87 has a line of weakness 88, which forms a hinge with a pivot axis, around which the smaller chamber can be folded if its content is to be poured into the large chamber for the purpose of producing the building material mixture.

The adjacent side walls 81 .1 and 82.1 of the chambers 81 and 82 are convex in shape and have a greater wall thickness than the side walls 81 .2 and 82.2 which face away from one another and are flat. As a result, the filled containers can be conveniently palletized without any major loss of storage space. On the other hand, the side walls that are adjacent to one another have the required rigidity for load absorption when stacking the containers 80. The containers 80 are pivoted relative to each other about their vertical axis by 90 °, so that the main load is absorbed essentially in the common edge flange area of the chambers of the container below.

In order to ensure a good positional stability of the above container in the case of force components that occur in the transport and act in the horizontal direction, additional latching means 89, 90 are provided on the chambers 81, 82. These are located on the underside of the smaller chamber and on the top of the common edge flange area 87 and are as one in the interior of the smaller chamber 81 facing cylindrical blind bush 89 and formed as a cylindrical pin 90 extending parallel to the vertical axis of the chambers. The latching means 89, 90 come into action when the container to be arranged above has been placed on the container below after being rotated through 90 ° about its vertical axis for stacking. The pin 90 is arranged on the common edge flange area 87 in order not to unnecessarily impede the closing of the chambers 81, 82 with a cover film.

In extension of the common edge flange area 87, two handles 92, each with a grip hole 93, are formed on the larger chamber 82. These handle means are arranged opposite one another in such a way that the connecting line between the handles cuts a solder that has been felled onto the center of mass of the container 80 and thus a uniform load distribution is achieved during manual transport.

A handle trough 94 arranged in the bottom area of the smaller chamber 81 and accessible from the outside of the container makes the handling of the smaller chamber considerably easier when filling the corresponding component into the larger chamber 82 used as a mixing chamber.

In order to prevent the chambers 81 and 82, which are filled with the components of the building material mixture, from being carried by manual transport by rocking and / or swinging, or which can be damaged mechanically, the chambers 81, 82 are located in the bottom region of the chambers 81, 82 between their mutually facing side walls 81 .1, 82.1 a spacer 95 is provided. The spacer that fixes the relative chamber position is attached to both chambers. At a predetermined breaking point 96 of the spacer web 95, the two chambers can be separated from one another for pivoting the smaller chamber.

FIGS. 19, 20, 21 show a container 100 with two chambers 101, 102, which can be closed in a moisture-tight manner by a cover film (not shown) that can be welded to their peripheral edge flanges 103, 104. In the form of the chambers 101 and 102, the edge flanges 103, 104 of which are mechanically stiffened by webs 105 and projections 106, the container 100 essentially corresponds to the container 80 according to FIGS. 16, 17 and 18.

The large chamber 102 of the container 100 has two outwardly extending ones and grip shells 107 which are open at the bottom and are formed in the upper region of the convex wall and which are mechanically stiffened by an inner web 108.

Provided on the edge flange region 109 connecting the two chambers are two sections 1 11 arranged symmetrically to one another and to the weakening line 110 formed as a hinge, which are provided with a prestress during the manufacture of the container. This folds the sections 1 1 1 when pivoting the smaller chamber 101 for the purpose of emptying into the larger chamber 102 to a web, which advantageously prevents part of the one component by laterally limiting the material flow when emptying the smaller chamber the building material mixture falls next to the larger chamber 102 used as a mixing chamber. The recessed grip provided for pivoting the smaller chamber at the bottom area thereof is designated by 13.

The edge flange 103, 104 of the two chambers 101 and 102 has on its periphery in each case a radially outwardly extending, triangular material projection 1 14, 1 15, on which pull tabs provided on both sides of the (not shown) cover film can be placed and releasably fixed . The use of two pull tabs advantageously facilitates pulling off the cover film in two different directions before the mixing process is initiated.

FIGS. 22 to 25 show a two-part container, produced by injection molding from polyethylene granulate, which has the shape of a shell case 200 which contains two closable shells that can be folded against one another.

The two unequal sized, shell-like chambers 201 and 202 of the container are connected to one another by joints 203 fastened to the edge flanges of two opposite side edges and each have a separate (not shown) film cover. A grip element 204, 205 is formed on each of the joint-free longitudinal edges of the two shells, which form a carrying handle when the container is closed by folding the shells and is in the transport configuration.

The grip elements 204, 205 have latching means 206, which come into action in pairs when the container is folded by is closed. The positive and non-positive locking of the locking means advantageously prevents the container 200 from being opened unintentionally, for example during transport. Collapsed containers can be stored as a stack 300. In order to stabilize the position of the individual containers 200, bulges 209 of low height are provided on the longitudinal edges of the bottom of the smaller shell.

To protect against deformation when the container is unfolded, the side walls of the chambers 201 and 202 below the joints 203 have stops 207, 208 arranged on the outside, which hold the smaller chamber in a substantially horizontal position when the container has been opened to remove the protective films and stops 207, 208 come into contact with one another.

As shown in Figures 26 and 27, the stops on the smaller and / or the larger chamber are replaced by spaced rollers 408, so that the two-chamber package 400 like a suitcase using the rollers 408 during transport, for example from a point of sale to a vehicle that can be pulled with little effort. In the illustrated embodiment, when the container is opened, the rollers 408 are supported on the stops 407 and thereby hold the smaller chamber in a horizontal position.

FIG. 28 shows a case-shaped container 500 in a transport configuration, the shell-like chambers 501 and 502 of which are covered by a one-piece protective film. In the hinge area, the cover film has a separating element 505 between the film areas 503, 504 covering one of the chambers 501 and 502, which extends over the entire width of the film and is located outside the stacked film areas when the container is folded. The separating element 505 is connected to a pulling device 506 lying between the film areas 503, 504 during the transport configuration of the pack, which has a handle 507 at its free end, which is accessible from the outside in the area of the grip means 508, 509 of the pack 500. When the container is folded, the film can be removed from the two chambers at the same time on the handle 507. The contents of the smaller, overhead chamber are emptied into the larger chamber to be used as a mixing chamber, so that a loss of material - and thus a reduction in the quality of the building material mixture to be produced - is advantageously avoided. The shell-like chambers of the containers 200, 400, 500 shown in FIGS. 22 to 28 have a relatively low height, so that the mixing process for producing the desired building material mixture can be carried out very easily and no unmixed constituents are provided in the larger mixing chamber Shell 202, 402, 502 remain.

The containers 1, 1 ', 20, 20', 50, 50 ', 60, 80, 100, 200, 400, 500 are produced, for example, from plastic granules using the spray material process. Polyethylene or polypropylene is particularly suitable as plastic; they can be used as single or reusable packaging, the total weight when filled - depending on the size of the container - being 1 5, 30 or 50 kg.

Claims

claims

Two-chamber container (1, 1 ', 20, 20', 50, 50 ', 60, 80, 100, 200, 400, 500) for packaging components (4, 5) of a building material mixture to be kept separate until processing, with two chambers of different sizes (2, 3, 3 ', 21, 23, 21', 23 ', 52, 53, 62, 63, 81, 82, 101, 102, 201, 202, 401, 402, 501, 502) for Form the receptacle of the individual components, the filler opening of which is closable and encompassed by an edge flange (2.1, 3.1, 3.1 ', 21 .1, 23.1, 56, 83, 83, 103, 104), characterized in that the chambers are made of plastic material are shaped and at least the larger chamber (3, 3 ', 23, 23', 82, 102, 202, 402, 502) has means (7, 13, 34, 35) for increasing the load-bearing capacity of the container.

2. Container according to claim 1, characterized in that the larger chamber (3, 3 ', 23) is inserted into a carrying frame (7) or carrying net (13) formed by rope strands or reinforced belt straps.

3. Container according to claim 2, characterized in that an adhesive connection (1 1) is provided between the chamber outer wall and the belt straps (8) of the support frame (7).

4. Container according to claim 2 or 3, characterized in that on the carrying frame (7) or carrying net (13) handles (12, 14) are provided for handling the container.

5. Container according to one of the preceding claims, characterized in that the chambers (2, 3, 3 ', 21, 23, 21', 23 ', 52, 53, 62, 63) are substantially cuboid.

6. Container according to claim 5, characterized in that the chamber with the smaller filling space (3, 3 ') has a bottom surface which is smaller than the filling opening of the chamber with the larger filling space (2).

7. Container according to one of the preceding claims, characterized in that the larger chamber (3 ', 23') has a free space (1 6, 32) under the chamber bottom securing feet (15, 30).

8. Container according to one of the preceding claims, characterized in that the chambers (21, 23, 21 ', 23', 52, 53, 62, 63) are made from a common material blank and a common bottle area (25, 66) with have a hinge or a line of weakness (26) designed as a hinge and the chamber with the smaller filling space (21, 21 ', 53, 63) for establishing the transport configuration of the container in an essentially coaxial arrangement upside down on the chamber (23, 23' , 52, 62) is hinged with the larger filling space.

9. Container according to one of the preceding claims, characterized in that a holding means (30, 31) is provided on two opposite side edges of the bottoms (21 .2, 23.3) of the chambers (21, 23, 21 ', 23') which engage in complementary holding means of adjacent containers when stacking containers in the transport configuration.

10. Container according to claim 9, characterized in that parallel side edges of the bottom (23.2, 23.2 ') of the larger chamber (23, 23') are formed as a bead (30) and the corresponding side edges of the bottom (21 .2, 21. 2 ') of the smaller chamber (21, 21') each carry a peripherally formed groove (31) for receiving the beads (30).

1 1. Container according to one of the preceding claims, characterized in that latching means (71, 72) are provided in the common flange area (66) between the larger and the smaller chamber, through which the hinge (67, 68) for a folding movement of the chamber with the smaller filling space (21, 21 ', 53, 63) is blocked below a minimum torque.

12. Container according to one of the preceding claims, characterized in that the bottom (23.2 ') and / or the walls (23.3') of the chamber (23 ') have struts.

13. Container according to one of the preceding claims, characterized in that the chambers (81, 82, 101, 102) have a wall thickness which changes in the circumferential direction.

14. Container according to one of the preceding claims, characterized in that the chambers (81, 82, 101, 102) in supervision a substantially oval cross-sectional profile and a common edge flange area (87, 107) with a line of weakness forming a hinge (88, 108 ) exhibit.

1 5. Container according to claim 14, characterized in that the walls of the opposing broad sides of the chambers connected by the common edge flange area (87, 107) are convex or flat.

16. Container according to one of the preceding claims, characterized in that the wall thickness of the chamber broad sides facing away from one another (81 .2, 82.2) has a lower value in relation to the wall thickness of the chamber broad sides facing each other (81 .1, 82.1).

17. Container according to one of the preceding claims, characterized in that in the center of the two flange (101, 102) common flange area (107) two on both sides of the line of weakness (108) arranged, pre-shaped sections (109) are provided, which are when pivoting the smaller chamber (101) in the direction of the larger chamber (102), unfold it to a material flow when filling the mixture component from the smaller web that laterally guides into the larger chamber.

18. Container according to one of the preceding claims, characterized in that the chambers (81, 82, 101, 102) in the opening area essentially radially outwardly extending webs (85, 105) and / or projections (86, 106) of short length have, on which the respective edge flange (83, 84, 103, 104) is supported.

19. Container according to one of the preceding claims, characterized in that a recessed grip (94, 1 13) is formed in the bottom of the smaller chamber (81, 101).

20. Container according to one of the preceding claims, characterized in that on the chambers (81, 82) of the container (80) locking means (89, 90) are provided for securing the position when stacking containers.

21. Container according to claim 20, characterized in that the latching means are arranged and designed as a cylindrical recess (88) in the bottom of the smaller chamber (81) and as a pin in the common edge flange region (87) of the chambers (81, 82) in such a way that they are at a relative rotation of 90 ° or 180 ° of the containers to be stacked about their vertical axis come into effect.

22. Container according to one of the preceding claims, characterized in that on the larger chamber (52, 62, 82, 102) handle means (57, 57 ', 69, 92, 105) for handling the container (50, 50', 60 , 80, 100) are provided.

23. Container according to one of the preceding claims, characterized in that a recessed grip (69) is formed in two opposite wall areas on the outside of the larger chamber (62), each lying at the same height.

24. Container according to one of the preceding claims, characterized in that the larger of the chambers (3, 23, 23 ', 52, 62, 82, 102) as a mixing chamber for producing the building material mixture from the components (4, 5, 54, 55 , 64, 65) is configured.

25. Container according to one of the preceding claims, characterized in that it is made of a recyclable plastic, preferably of polyethylene or polypropylene.

26. Container according to one of the preceding claims, characterized in that the chambers (81, 82, 101, 102) are closed by a, preferably common, plastic cover film.

27. Container according to one of the preceding claims, characterized in that the plastic film has two grip tabs, which are releasably fixed on the outside of the edge flange of the two chambers, radially outwardly extending material projections (1 14, 1 15).

28. Container according to one of the preceding claims, characterized by a spacer web (95) provided in the bottom region of the chambers (81, 82) between their mutually facing side walls and fixing the relative chamber position.

29. Container according to claim 28, characterized in that the spacer web (95) has a predetermined breaking point (96) and is integrally formed on the side wall of both chambers.

30. Container according to one of the preceding claims, characterized by two hinged shells, each of which forms a shell-shaped chamber which can be closed with a closure and which can be folded against one another with its closure side in the manner of a shell case (200, 400, 500).

31 Container according to claim 30, characterized in that the half-shell-like chambers (201, 202, 401, 402, 501, 502) have a relatively low height and grip elements (204, 205, 404, 405, 508, 509) on the broad sides remote from the joint ), which form a handle for the container when the trays are folded.

32. Container according to one of claims 31 to 33, characterized in that the shells have locking means (206, 406, 510) which releasably hold the shells together when the shells are folded.

33. Container according to one of the preceding claims, characterized in that the two shells can be closed by means of a common or two separate cover foils.

34. Container according to claim 44, characterized in that the cover film (s) have at least one separating element (505) for separating or removing the cover film (s).

35. Container according to claim 34, characterized in that the separating element (505) is connected to a pulling device (506) with which the separating element (505) can be handled from the outside.

36. Container according to one of the preceding claims, characterized by rollers (408) on the bottom of at least one chamber or on a side surface of the shell case formed from two shells.