EP2784004B1 - Plastic internal container and transport and storage container for liquids with such an internal container - Google Patents

Description

The present invention relates to an inner container made of plastic for the transport and storage of liquids according to the preamble of claim 1. Furthermore, the invention relates to a transport and storage container according to claim 10.

Inner container of the type mentioned are used as interchangeable component of transport and storage containers, which serve for the transport and storage of liquids and are regularly used as so-called "circulation container", which are repeatedly filled. In order to enable the largest possible volume of sales of the liquid filled in the container, it is essential to ensure the most complete emptying of the container, so that the entire container volume is available for the refilling during the next filling process. Sometimes it is also important to achieve a complete emptying of the container, so as not to have to perform complex rinsing and cleaning operations, or at least to limit these operations to an appropriate minimum.

Particularly in the case of highly viscous filling goods, which have good wetting properties with respect to the inner walls of the inner container, a substantially complete emptying of the known inner containers can prove to be very complicated and lengthy, since the container shape is essentially designed to provide a container with a maximized container volume to set, which is also adapted in its outer dimensions or its configuration substantially to the receiving space defined on the transport pallet within the outer shell.

From the DE 10 2007 044 279 A1 is an inner container made of plastic for the transport and storage of liquids known having a trained in a bottom wall outlet funnel with a front, two lateral and one rear funnel wall, so that the outlet funnel above a funnel bottom has the shape of a truncated pyramid. In the known inner container, an outlet nozzle is arranged on a front funnel wall, which is inclined to a front wall of the inner container.

The US 5,356,029 shows an inner container formed as a flaccid bag whose outer shape is defined by a Carton enclosure enclosing the inner container and a support member supporting the inner container, which has a recess in the region of a discharge nozzle of the inner container into which the bag region of the inner container provided with the outlet nozzle deformed into it.

The present invention has for its object to provide an inner container made of plastic for the transport and storage of liquids and a transport and storage container with such an inner container, which allows for highly viscous contents improved emptying of the container.

To solve this problem, the inner container according to the invention has the features of claim 1.

According to the invention, the discharge spout is arranged in a funnel bottom of a discharge funnel formed in the bottom wall, which comprises four triangular funnel walls, namely a front, two lateral and one rear funnel wall, the lateral funnel walls each being inclined from a lower edge of a side wall towards the funnel bottom, the outlet funnel has the shape of a truncated pyramid above the funnel base, the funnel base being cup-shaped and having a connection surface for the outlet connection formed on a lower edge of the front funnel wall and arranged parallel to the front wall of the inner container.

The inventive design, the bottom wall is used to form a discharge funnel, which is defined by four triangular, preferably flat funnel walls, and having a funnel bottom, in which the outlet nozzle is arranged. Due to the triangular shape of the funnel walls, the outlet funnel above the funnel bottom in the shape of a truncated pyramid, so that the funnel walls for a steadily to the outlet nozzle down becoming smaller flow cross-section in the bottom wall of the inner container, without that during the discharge of a liquid, a complete emptying preventing liquid nests can train.

Preferably, the front hopper wall is inclined from a lower edge of the front wall to the funnel base, so that there is a relation to the front wall of the inner container recessed arrangement of the outlet nozzle and thus a corresponding recessed and thus protected arrangement of attached to the outlet nozzle outlet fitting. Furthermore, the inclined front hopper wall allows an adjustment of the slope angle of the front funnel wall the slope angle of the other funnel walls, so in particular the formation of a uniform slope angle in all funnel walls.

However, for the proper functioning of the discharge funnel, it is sufficient if, according to a possible embodiment, the front funnel wall is formed by a triangular extension of the front wall which extends in the plane of the front wall.

If the lower edge of the rear wall, the lower edges of the side walls and the lower edge of the front wall are arranged in a horizontal plane of the inner container, there is an inner container with a funnel-shaped bottom wall, in which the front wall, the side walls and the rear wall can be made the same size.

If the lower edge of the rear wall, the lower edges of the side walls and / or the lower edge of the front wall arranged in different horizontal planes of the inner container, any variations of the funnel training are possible to vary the slope of the funnel walls and the relative position of the funnel base or the outlet nozzle on the inner container ,

If the lower edge of the rear wall above the lower edges of the side walls of the inner container and the lower edges of the side walls are arranged in a horizontal plane with the lower edge of the front wall, there is an inner container with a relatively small slope of the rear funnel wall and large Nutzinhalt.

If the lower edge of the rear wall above the lower edges of the side walls of the inner container and the lower edge of the front wall between the lower edge of the rear wall and the lower edges of the side walls is arranged, there is an inner container with a relatively larger slope of the rear funnel wall and comparatively smaller net capacity, this inner container is particularly suitable for liquids with higher viscosity.

If the lower edge of the rear wall and the lower edge of the front wall are arranged in a horizontal plane and above the lower edges of the side walls, there is an inner container with even greater slope of the rear funnel wall and comparatively even smaller useful content, this inner container is particularly suitable for liquids with particularly high Viscosity.

The same applies to an inner container in which the lower edge of the rear wall is arranged between the lower edge of the front wall and the lower edges of the side walls.

The transport and storage container for liquids according to the invention has an inner container made of plastic with the features of one of claims 1 to 9, wherein the inner container is arranged with its bottom wall for support on a pallet base of a provided with an outer jacket for receiving the inner container transport pallet and between the bottom wall of the inner container and the pallet base a support means is arranged, which has a support surface adapted in the inclination of the bottom wall.

The transport and storage container according to the invention thus enables the use of an inner container having the advantages already explained in detail with reference to claims 1 to 9 by a simple combination of a conventional transport pallet having an outer casing with a supporting device.

The transport and storage container according to the invention allows the use of an inner container, which allows improved emptying, without the need for the usual in a transport and storage container used transport pallet or in the usual Way trained outer sheath would have to be deviated to use the beneficial effects of the inner container.

Particularly advantageous in terms of the overall height of the transport and storage container, it has an effect when the support means for forming the support surface for the bottom wall has a support frame with a recess for the discharge funnel and with a recess for carrying out an outlet fitting arranged at the outlet nozzle, so that it sunk can be received in the support device.

The support frame preferably has a support yoke bridging the recess for carrying out the outlet fitting arranged at the outlet connection for supporting the inner container.

If according to an advantageous embodiment, the support means for forming the support surface for the bottom wall in a rear portion of the support frame has a support ramp, a particularly secure support of an inner container is possible, which has a bottom edge of the rear wall to the funnel bottom inclined bottom wall.

If the support ramp is formed at least partially from a support attachment arranged on a support base of the support frame, optimum adaptation of the support device to inner containers with different bottom walls can be achieved with little effort on the basis of a prefabricated embodiment of a basic form of the support device.

To reduce the number of components of a transport and storage container of the support frame may be integrally formed integrally with the pallet base, so be made about as a molded part.

It when the support means is at least partially formed as a blow-molded part, so that for the production of the support body is particularly advantageous the same technology is used as for the production of the inner container.

In particular, it is advantageous if the support frame is formed as a blow molding and thus easily adapted in its shape to the bottom wall and the outlet funnel of the bottom wall.

If the support frame and the support attachment are formed as blow molded parts, both components can be produced in a common manufacturing process.

Alternatively, it is possible to form the support means at least partially as an injection molded part.

In one embodiment of the support device as an injection-molded part, there is the advantage that the support device can be designed to be of high load-carrying capacity by optimized design with the least possible use of material and yet with a high dynamic load.

If the support frame is designed as an injection molded part, it is not only easily adaptable to the bottom wall or the outlet funnel of the bottom wall in its shape, but also has a particularly high stability.

If the support frame and the support cap are formed as blow molding, both components can be produced in a common manufacturing process.

In particular, for producing a support device which is composed of simple flat parts and yet allows both an adaptation to the surface of the pallet base as well as to the bottom wall and the outlet funnel of the inner container, it is advantageous if the support means as a supporting structure with a plurality of transversely to Longitudinal direction of the inner container arranged support ribs formed is connected to each other via horizontal connecting elements.

If the support device is formed as a framework with a plurality of interconnected rods, it is for example possible to perform the support means as a welded construction, in particular the use of pipes prove to be advantageous due to their high bending strength compared to the material used.

If the framework is at least partially formed by rods of the outer shell, the material used for the production of the framework by using existing existing rods of the outer shell can be minimized.

To avoid undesirable surface pressure at the contact points between the rods of the framework and the inner container, it is advantageous if the framework is provided for forming support surfaces with wings, which are preferably formed from sheet metal blanks, so that a welding with the rods of the framework is easily possible ,

Fig. 1

einen Transport- und Lagerbehälter mit einem auf einer Stützeinrichtung angeordneten Innenbehälter;

Fig. 2

die auf einer Transportpalette des in Fig. 1 dargestellten Transport- und Lagerbehälters angeordnete Stützeinrichtung;

Fig. 3

den in Fig. 1 dargestellten Innenbehälter in Einzeldarstellung;

Fig. 4

die in Fig. 1 und 2 dargestellte Stützeinrichtung in Einzeldarstellung;

Fig. 5

den in Fig. 3 dargestellten Innenbehälter in Seitenansicht;

Fig. 6

den in Fig. 3 dargestellten Innenbehälter in Vorderansicht;

Fig. 7

den in Fig. 3 dargestellten Innenbehälter in Unteransicht;

Fig. 8

eine als Sprizgießteil ausgebildete Stützeinrichtung;

Fig. 9

eine als Blasformteil hergestellte, zweiteilig ausgebildete Stützeinrichtung in Explosionsdarstellung;

Fig. 10

die in Fig. 9 dargestellte Stützeinrichtung im montiertem Zustand;

Fig. 11

eine Stützeinrichtung mit integral ausgebildetem Palettenboden in Seitenansicht;

Fig. 12

die in Fig. 11 dargestellte Stützeinrichtung in isometrischer Darstellung;

Fig. 13

einen Innenbehälter, der auf einer als Stabwerk ausgebildeten Stützeinrichtung angeordnet ist;

Fig. 14

eine isometrische Darstellung der in Fig. 13 dargestellten Stützeinrichtung;

Fig. 15

eine isometrische Darstellung einer weiteren Ausführungsform einer Stützeinrichtung.

Hereinafter, preferred embodiments of the inner container according to the invention and the transport and storage container according to the invention are explained in more detail with reference to the drawing. Show it:

Fig. 1

a transport and storage container with an inner container arranged on a support device;

Fig. 2

which on a transport pallet of in Fig. 1 represented transport and storage container arranged support means;

Fig. 3

the in Fig. 1 illustrated inner container in single representation;

Fig. 4

in the Fig. 1 and 2 illustrated support device in a single representation;

Fig. 5

the in Fig. 3 illustrated inner container in side view;

Fig. 6

the in Fig. 3 illustrated inner container in front view;

Fig. 7

the in Fig. 3 illustrated inner container in bottom view;

Fig. 8

a support device designed as a injection molding;

Fig. 9

a blow molding produced as a two-piece support means in an exploded view;

Fig. 10

in the Fig. 9 illustrated support device in the assembled state;

Fig. 11

a support device with integrally formed pallet base in side view;

Fig. 12

in the Fig. 11 illustrated support means in isometric view;

Fig. 13

an inner container which is arranged on a supporting device designed as a truss;

Fig. 14

an isometric representation of in Fig. 13 illustrated support means;

Fig. 15

an isometric view of another embodiment of a support device.

Fig. 1 shows a transport and storage container 10 which receives an inner container 15 made of plastic on a transport pallet 11 in a here formed as a grid shell with vertical bars 12 and horizontal bars 13 outer shell 14. Between the inner container 15 and a Pallet base 16 of the transport pallet 11, a support means 17 is arranged, on which the inner container 15 is supported with a bottom wall 18. The inner container 15 has on a front wall 19 an outlet connection 20 for connection of an outlet fitting 21, which allows a removal of a filling material from the inner container 15, which was previously filled through a filling opening 22 at an upper side 23 of the inner container 15.

The transport pallet 11 of in Fig. 1 illustrated transport and storage container 10 is designed as a frame pallet with a base frame formed from tube material 24, are arranged on the support legs 25 which support the pallet base 16, on which the outer shell 14 is arranged.

Notwithstanding the in Fig. 1 illustrated, designed as a frame pallet transport pallet 11, the transport pallet can also be designed as runners palette, which can be used in particular in the skid pallets and deviating materials for the individual components of the range. In particular, it is also conceivable, deviating from the in Fig. 1 transport pallet 11 shown, which has a designed as a sheet metal part pallet base 16 to execute the pallet base as a plastic part.

The arranged on the pallet base 16 support means 17 has, in particular from the Fig. 1, 2 and 4 can be seen, in a rear portion of a support frame 51, a support ramp 26. The support frame 51 is provided in a front portion with a recess 52 for the discharge hopper 29 and a recess for the outlet fitting 21.

As in particular from a synopsis of 3 and 4 becomes clear, one of the bottom wall 18 of the inner container 15 facing surface of the support means 17 forms a support surface 28, which for supporting abutment against the bottom wall 18 of the inner container 15 and a arranged below a lower edge 44 of the front wall 19 discharge funnel 29 is used.

How the particular Fig. 5 to 7 show, the inner container 15 side walls 30, 31, which adjacent to the front wall 19 of the inner container 15 preferably horizontally extending lower edges 32, 33 have. From the lower edges 32, 33 extend at a gradient angle α to a funnel bottom 34 of the formed in the bottom wall 18 outlet funnel 29 side, triangular funnel walls 35, 36. Furthermore, a preferably flat bottom portion 45 of the bottom wall 18 extends from a lower edge 37 of a rear wall 38th of the inner container 15 at a gradient angle β in the direction of the hopper bottom 34, wherein the bottom portion 45 adjacent to the side funnel walls in a rear funnel wall 39 passes. Another funnel wall 40, which in the case of the illustrated embodiment has a slope angle γ, extends from the lower edge 44 of the front wall 19 to the funnel bottom 34 and supplements the two side funnel walls 35, 36 and the rear funnel wall 39 above the funnel bottom 34, in which the outlet pipe 20 is to a truncated pyramid 46th

In the case of the illustrated embodiment, the gradient angle α, β, γ are the same size and are at an angle between 20 and 30 °, preferably 26 °. Furthermore, the lower edges 32, 33 of the side walls 30, 31 and the lower edge 44 of the front wall 19 are in a common horizontal plane E, whereas the lower edge 37 of the rear wall 38 above the lower edges 32, 33 of the side walls 30, 31 is arranged.

The hopper bottom 34 is cup-shaped, with a formed in a lower edge region 42 of the front funnel wall 40 and parallel to the front wall 19 of the inner container 15 arranged connection surface 43 for the outlet nozzle 20th

As is apparent from the above with reference to the Fig. 5 to 7 results in the discharge funnel 29 is formed due to the four triangular funnel walls 35, 36, 39 and 40 above the funnel bottom 34 in the form of a truncated pyramid 46, wherein the cup-shaped funnel bottom 41 forms a front wall 19 towards shifted pyramid tip.

Depending on whether the inclination angle of the funnel walls are formed consistently or differently, results in a regular, straight or a slanted pyramidal stump as a shape for the discharge funnel.

Notwithstanding the in Fig. 4 illustrated embodiment of a support means 17 which is integrally formed as a blow-molded part, shows Fig. 8 a support device 50 which is designed as an injection molded part, in particular as an injection molded part produced from an EPS foam. In accordance with the support 17 ( Fig. 4 ) , the support means 50 a support frame 51 having a recess 52 for receiving the in Fig. 3 illustrated outlet funnel 29, to which a further recess 53 for carrying out the outlet pipe 20 of the in Fig. 3 illustrated inner container 15 arranged outlet fitting 21 is formed. In a rear portion of the support means 50, a support ramp 47 integrally formed on the support frame 51 is formed.

In the FIGS. 9 and 10 a support device 54 is shown, which is formed as a blow molding and two parts, wherein a support frame 55 in a front portion a recess 56 for receiving the discharge funnel 29 ( FIGS. Fig. 3 ) and is provided in its rear portion with a support base 57, which forms a support ramp 59 supplemented by the support member 58 formed as the second part of the support means 54. To support the inner container 15 above a formed in the support frame 55 recess 60 for carrying out the Outlet fitting 21, the recess 60 is bridged with a support yoke 61.

In the FIGS. 11 and 12 a support means 62 is shown, which is formed as part of a transport and storage pallet 63, with a support frame 64 of, in particular from the exploded view in Fig. 12 can be seen, in a integrally formed lower portion of a pallet base 65 of the transport and storage pallet 62 is formed, which is connected via support legs 66 with a base frame 67 and thus designed as a frame pallet transport and storage pallet 63.

To form a support ramp 69, the support frame 64 is comparable to that in FIG Fig. 10 shown support frame 55 of the support means 54 is provided with a support base 70 on which as a second part of the support means 62, a support cap 71 is arranged.

Notwithstanding the in the 8 to 12 shown support means 50, 54 and 62, which are produced as blow molding or injection molded part, show the Fig. 13 to 15 exemplary further possible embodiments.

For example, the show FIGS. 13 and 14 a support means 77 which is formed as a framework with a closed frame 78 and connected to the frame 78, U-shaped bent rods 79, 80, which consist of differently shaped pieces of pipe.

How the particular Fig. 13 shows, support rods 81, 82 are provided on the rods 80, the rod bridges to support the bottom wall of the inner container 15 form and are designed according to the inclination of the bottom wall 18 at different heights.

Fig. 15 shows as a further possible embodiment, a support means 83, which is designed as a supporting structure with a plurality of transversely to a longitudinal axis 49 arranged support ribs 84 to 89, the be interconnected via horizontal connecting elements 90, 91 and secured in their relative arrangement. The respective height or shape of the support ribs 84 to 89 is selected so that an adaptation to the inclined bottom wall 18 of the inner container 15 ( FIG. Fig. 13 ) becomes possible.

Claims (27)

1. An inner container (15) made of plastic for transporting and for storing liquids, said inner container comprising, at a front side, an outlet neck (20) for connecting an outlet armature and comprising a bottom wall (18), which connects two side walls (30, 31), one rear wall (38) and one front wall (19) of the inner container to one another, for supporting the inner container on a pallet bottom (16) of a transport pallet (11) that is provided with an outer jacket (14) for accommodating the inner container, wherein the outlet neck (20) is arranged in a funnel bottom (34) of an outlet funnel (29) which is embodied in the bottom wall, and which comprises four triangular funnel walls (35, 36, 39, 40), to be precise one front funnel wall, two lateral funnel walls and one rear funnel wall, wherein the lateral funnel walls are inclined from a lower edge (32, 33) of a side wall (30, 31) towards the funnel bottom in each case, in such a way that the outlet funnel has the shape of a truncated pyramid (46) above the funnel bottom,
   characterised in that
   the funnel bottom (34) is embodied to be cup-shaped and comprises a connecting face (43) for the outlet neck (20), said connecting face being embodied at a lower edge (42) of the front funnel wall (40) and being arranged parallel to the front wall (19) of the inner container (15).
2. The inner container according to claim 1,
   characterised in that
   the front funnel wall (40) is inclined from a lower edge (44) of the front wall (19) towards the funnel bottom (34).
3. The inner container according to claim 1,
   characterised in that
   the front funnel wall (40) is formed by a triangular extension of the front wall (19), said extension extending in the plane of the front wall.
4. The inner container according to one of the previous claims,
   characterised in that
   the lower edge (37) of the rear wall (38), the lower edges (32, 33) of the side walls (30, 31) and the lower edge (44) of the front wall (19) are arranged in a horizontal plane of the inner container (15).
5. The inner container according to one of the claims 1 to 3,
   characterised in that
   the lower edge (37) of the rear wall (38), the lower edges (32, 33) of the side walls (30, 31) and/or the lower edge (44) of the front wall (19) are arranged in different horizontal planes of the inner container (15).
6. The inner container according to claim 5,
   characterised in that
   the lower edge (37) of the rear wall (38) is arranged above the lower edges (32, 33) of the side walls (30, 31) of the inner container (15) and the lower edges of the side walls are arranged in a horizontal plane together with the lower edge (44) of the front wall (19).
7. The inner container according to claim 5,
   characterised in that
   the lower edge (37) of the rear wall (38) is arranged above the lower edges (32, 33) of the side walls (30, 31) of the inner container (15) and the lower edge (44) of the front wall (19) is arranged between the lower edge of the rear wall and the lower edges of the side walls.
8. The inner container according to claim 5,
   characterised in that
   the lower edge (37) of the rear wall (38) and the lower edge (44) of the front wall (19) are arranged in a horizontal plane and above the lower edges (32, 33) of the side walls (30, 31).
9. The inner container according to claim 5,
   characterised in that
   the lower edge (37) of the rear wall (38) is arranged between the lower edge (44) of the front wall (19) and the lower edges (32, 33) of the side walls (30, 31).
10. A transport and storage container (10) for liquids having an inner container (15) made of plastic according to one of the claims 1 to 9, wherein the inner container is arranged, for support, with its bottom wall (18) on a pallet bottom (16) of a transport pallet (11) that is provided with an outer jacket (14) for accommodating the inner container, and wherein a supporting means (17, 50, 54, 77, 83) is arranged between the bottom wall of the inner container and the pallet bottom, said supporting means comprising a supporting surface (28) that is adapted to the bottom wall.
11. The transport and storage container according to claim 10,
    characterised in that
    the supporting means (17, 50, 54), for embodying the supporting surface (28) for the bottom wall (18), comprises a supporting frame (51, 55, 64) having a recess (52, 56) for accommodating the outlet funnel (29) and having a recess (53, 60) for passing through an outlet armature (21) that is arranged at the outlet neck (20).
12. The transport and storage container according to claim 11,
    characterised in that
    the supporting frame (55) comprises a supporting brace (61) for supporting the inner container, said supporting brace bridging the recess (56) for passing through the outlet armature (21) that is arranged at the outlet neck (20).
13. The transport and storage container according to claim 11 or 12,
    characterised in that
    the supporting means (17, 50, 54), for embodying the supporting surface (28) for the bottom wall (18), comprises a supporting ramp (26, 59, 69) in a rear section of the supporting frame (51).
14. The transport and storage container according to claim 13,
    characterised in that
    the supporting ramp (26, 59) is formed, at least proportionately, from a supporting superstructure (58, 71) that is arranged on a supporting base of the supporting frame.
15. The transport and storage container according to one of the claims 10 to 14,
    characterised in that
    the supporting frame (64) is embodied to be linked to the pallet bottom (65) in one piece.
16. The transport and storage container according to one of the claims 10 to 15,
    characterised in that
    the supporting means (17, 54, 62) is embodied, at least proportionately, as a blow molded part.
17. The transport and storage container according to claim 16,
    characterised in that
    the supporting frame (55, 64) is embodied as a blow molded part.
18. The transport and storage container according to claim 16,
    characterised in that
    the supporting frame (55, 64) and the supporting superstructure (58, 71) are embodied as blow molded parts.
19. The transport and storage container according to one of the claims 10 to 18,
    characterised in that
    the supporting means (50) is embodied, at least proportionately, as an injection molded part.
20. The transport and storage container according to claim 16,
    characterised in that
    the supporting frame (51) is embodied as an injection molded part.
21. The transport and storage container according to claim 16,
    characterised in that
    the supporting frame and the supporting superstructure are embodied as injection molded parts.
22. The transport and storage containers according to one of the claims 10 to 15,
    characterised in that
    the supporting means (83) is embodied as a load-bearing framework having a plurality of load-bearing ribs (84 to 89) which are arranged transversely to the longitudinal axis (49) of the inner container (15), and which are connected to one another via horizontal connection elements (90, 91).
23. The transport and storage container according to one of the claims 10 to 15,
    characterised in that
    the supporting means (77) is embodied as a bar framework having a plurality of bars (79, 80) that are connected to one another.
24. The transport and storage container according to claim 23,
    characterised in that
    the bars (79, 80) are embodied as tubes.
25. The transport and storage container according to claim 23 or 24,
    characterised in that
    the bar framework is formed, at least partially, by bars of the outer jacket.
26. The transport and storage container according to one of the claims 23 to 25,
    characterised in that
    the bar framework, for embodying supporting surfaces, is provided with load-bearing surfaces.
27. The transport and storage container according to claim 26,
    characterised in that
    the load-bearing surfaces are formed from at least one piece of sheet metal.

Images