The present invention relates to a container, in particular a bottle or a can, which comprises multiple chambers. The chambers are also referred to as partial containers in the following.
It is widely known that bottles or cans are particularly suitable for storing and/or transporting liquids. This includes a diverse set of liquids such as, for example, beverages, shampoos, hair conditioners, detergents or the like.
Containers with multiple chambers or partial containers have already been described in the literature. For example, the German utility model document G 85 26 243 U1 discloses a bottle that consists of two half-bottles. Each of the bottles has a separate outlet. The half-bottles are set flush next to each other, where the positive connection is facilitated by flat bottle walls that run parallel with respect to the longitudinal axis of the half-bottles. This particular design solves the problem to store multiple liquids with a bottle that provides both a large storage volume and a compact shape. The latter allows to place the bottle in narrow storage spaces of a refrigerator or similar places. Moreover, due to the separate outlets, the stored liquids do not taste bland after opening and closing each of the half-bottles several times.
The German patent application DE 44 39 869 A1 also describes a bottle with multiple chambers. The aim of the invention described therein is to provide a container, which can store different materials, which, at the same time, is handy and easy to transport, and which can also be produced easily. The solution presented is a bottle for holding liquids with multiple partial containers that have the same cross-section. The partial containers can be joined together to form a unit with the aid of connecting means. The connecting means are designed in such a way that the partial containers can be uncoupled from the unit and re-attached such that they can also be used individually or independently from each other.
The document DE 100 54 587 A1 introduces a device that can be used to hold liquids in at least two chambers that can be separated from each other. These partial containers extend alongside each other in the direction of an interior longitudinal axis, at least along a substantial part of their extent. Due to this arrangement, part of their surface boundaries lie next to each other. This leads to mutual mechanical support of the partial containers.
The German publication DE 42 19 598 A1 introduces a two-chamber bottle with a plastic cap. The bottle consists of two partial containers. Each of the containers comprises a flat wall, which facilitate a positive connection between the partial containers such that they lie next to each other. The connection between the two chambers is secured by connecting means and fixed additionally by a special common plastic cap that closes both chambers. To this end, a specialized closure is considered, which employs an integral hinge, which, for example, can be designed as a snap hinge. The closure is described in more detail in the European patent document EP 0 147 423 B1. The plastic cap is detailed in the German patent application DE 42 19 598 A1. The cap can be secured with a warranty band, i.e. a strip which can be injected onto a lower part via several webs which serve as predetermined breaking points. The warranty band serves as a guarantee of integrity and is particularly important if a bottle is used for food purposes.
Another possibility to assemble a two-chamber bottle is outlined in DE 196 44 007 A1. A drinking or baby bottle is described which can be divided into two chambers by a partition. Two different liquids can be filled into the thus partitioned chambers. The partition represents an interior wall that can be assigned to both chambers, i.e. the walls of the two chambers are only partially independent.
In the aforementioned documents, the chambers touch along an axis or surface parallel to the longitudinal axis of the container. WO 2011/116442 A1 reveals a two-chamber container in which the contact between the two chambers or partial containers runs along a plane that has an inclination with respect to the longitudinal axis of the container.
Another form of the contact surface is considered in WO 2012/117121 A1. The container described therein is also a two-chamber container, but the chambers are in contact along a wavy shaped contact surface.
Besides waveforms, the contact surface can also run along a spiral or a helix. A multi-part bottle with such a contact surface has been disclosed in e.g. U.S. Pat. No. 6,325,229 B1.
In addition to features subject to taste and aesthetics, the shape of the contact surface can also provide technical features. The interlocking of the partial containers described in WO 2011/157851 A1, for example, guarantees the mechanical stability of the connection. In this way, several partial containers can be assembled and transported in a stable arrangement.
The multi-chamber containers known from the state of the art comprise chambers that are connected such that are in direct contact to each other over a significant part of their boundary surfaces. This requires a complex manufacturing process, whereby some of the partial containers still have to be put together afterwards. In addition, the individual chambers of the known containers are in close thermal contact with each other.
It is therefore an object of the present invention to introduce a container with multiple partial containers—also referred to as chambers—that can be used for
and/or
and easily produced. In addition, the individual chambers of partial containers should be thermally insulated from each other to the greatest extend possible.
This object is achieved by the invention as claimed in the independent claim. Advantageous embodiments are described in the dependent claims. The use of the singular form should not exclude a possible multiplicity and vice versa, except for cases where it is explicitly stated.
According to the invention, the container can consist of various materials, such as plastic and/or metal. The joints can also be made of different materials such as, for example, plastic and/or steel. The choice depends on the desired application and in particular on the mechanical stress considered. If the container and the joints are made of plastic, the invention also has the advantage that it can be produced in one piece, for example by injection molding, extrusion and/or injection blow molding. The space that is available between the individual partial containers can be used e.g. for the arrangement of the injection molding tool. Depending on the material used, other processes, such as casting processes and/or the use of a 3-D printer, can also be used for production.
The container according to the invention serves to hold and store a plurality of different fluids and/or granular media. To this end, it comprises at least two partial containers, each with its own, i.e. independent, walls. A first of these containers can hold a first medium and a second one can hold a second medium. The container is designed in such a way that the first medium in the first partial container can be stored separately from the second medium in the second partial container. The partial containers are connected to each other by at least one connecting means, the at least one connecting means being fixed to the walls of the partial containers and separating the walls of the individual partial containers from each other. Thus, the distance between the outer surfaces of the container walls does not fall below a value of 0.2 mm.
The container according to the invention has a body with at least two partial containers. The body has a lower area, also known as the bottom, and an upper area, in which openings of the partial containers are located. This upper area can also have the shape of a bottle neck. The area in between is also referred to as the middle area. The body has an axis which runs centrally within the body from its upper area to its lower area and is referred to here as the longitudinal axis.
Each of the partial containers has its own wall and preferably its own opening. They are shaped and arranged in such a way that they are connected to one another along a predetermined path by means of a central element which extends at least in sections along the longitudinal axis (L) and/or along at least one of the other axes. This predetermined course corresponds to
The connection can extend over the entire length of the body or the length of adjacent partial containers, which can also be spiral-shaped. It can also be established at certain points only, i.e. at individual points along the predetermined course. Besides the connections, the walls of the individual partial containers have a predetermined distance from each other so that they are separated as far as possible by air gaps.
On the one hand, the advantages of air gaps need to be considered such as, for example, thermal insulation and the possibility of introducing production equipment therein. On the other hand, a higher stability can be achieved by a direct connection of adjacent partial containers. Considering these circumstances and the properties of the materials used, it turned out to be useful to have air gaps that extend along the full height of the body or adjacent partial containers at a length that corresponds to at least 50%—preferentially at least 80% or 90%—of the bodies or connections height. Full height here means the sum of the partial lengths of the air gap over the corresponding sections along the body or adjacent partial containers. All air gaps can have the same total length. However, it is also possible that at least one of them has a different length than the other air gaps.
The partial containers can have the same size. However, it is also possible that at least one of them has a different size—and thus a different capacity—than the other containers. The air gaps can also vary in size, for example to allow for a different thermal insulation between adjacent partial containers.
At least one of the partial containers may have more than one chamber, which may also be referred to as sub-container. Each of these sub-containers preferably has its own opening. Preferably there is no air gap between sub-containers of the same partial container. Substances contained in such sub-containers are thus separated from one another and can also be removed separately; however, they are thermally less insulated from one another than substances contained in different partial containers. The use of such sub-containers enables a compact design.
The connection between the partial containers can be made in different ways. In a simple embodiment, it is possible to insert more material at individual points in the area of the specified course by injection molding (or another manufacturing process) in the form of an accumulation of material and thus to glue or weld the partial containers together basically directly.
However, it is also possible that at least some of the partial containers are shaped in such a way that a corresponding central element is subsequently attached to it by means of a positive connection. A connection with a groove into which a corresponding bulge is inserted has proved particularly effective. This has the particular advantage that partial containers can be subsequently connected to one another or can also be used individually. This solution is therefore also referred to as a modular or hybrid concept.
It is also possible to manufacture the mentioned central element, which, for example, can consist of plastic and/or metal, separately and then insert it into the manufacturing process for the partial containers. As soon as the material of the partial containers such as, for example, plastic and/or metal, solidifies, the partial containers are connected to the inserted central element. Preferably, the central element and the associated partial containers are made of the same material. For a stable connection between the central element and the associated partial containers, other processes such as welding, gluing and/or other suitable processes can be used in addition or instead.
The cross-section of preferred central elements can be very different. This is discussed in more detail in connection with the description of preferred embodiments.
Typically, several or all of the partial containers have their own opening. These openings can be closed individually, for example with glued-on foils or suitable sealing plugs. Usually, such a closure will also be present before the first use of a filled container. However, in order to be able to easily open and close the container according to the invention after its first use, an associated closure can be provided, which can be mounted on the upper part of the body, for example by means of
a thread with a corresponding mating thread
a clamping mechanism
and/or the like.
The closure preferably has a large number of flaps which are assigned to the openings of the individual part containers. This means that by opening such a flap, the opening of the associated partial container is released so that a substance (such as a liquid) can be removed from it or filled into it. The flaps employ hinges for easy handling. This can be achieved in various ways, such as by means of integral hinges, flap hinges, or by means of suitable rotatable bearings.
A rotatable bearing is usually designed in such a way that a first bearing part is fixed to the flap and a second bearing part is fixed to the closure and/or the body of the container. The first bearing part, for example, consists of two arms, on each of which a pin is arranged. The second bearing part is the matching counterpart, which allows the first bearing part to be mounted rotatably such as, for example, by means of suitable openings for the pins mentioned. For a space-saving design of such a flap bearing, it is suggested that, according to the invention, one of the bearing parts is located inside the closure and/or the container. The first bearing part also needs to be adjusted accordingly, for example by forming the arms that hold the pins. This design allows an almost flat surface at the top of the container and/or closure.
In a further embodiment, it is also intended that unauthorized opening of the flaps is prevented or at least indicated. For this purpose, predetermined breaking points are provided between the flaps and the rest of the closure. They break when the flaps are opened for the first time. Such breaking points can be made, for example, by means of a guarantee band, as known from DE 42 19 598 A1. It is also possible to use suitable locking elements with predetermined breaking points which engage when the flaps are closed and can then only be opened again via the predetermined breaking points.
Further details and advantages of this invention are explained below using preferred design examples and associated illustrations. Thereby show:
a body 10 with a height H that, in this example, comprises three partial containers 12 (see also
a closure 20 which, when assembled, is located in the upper part of the body 10 on its neck 11 and closes the three partial containers 12.
The partial containers 12 shown in
α+β=120 degrees.
In this embodiment, each angle α is equal to 100 degrees and each angle β equal to 20 degrees. It should be noted, however, that the present invention is by no means limited to these angular values. This also means that the individual partial containers 12 can have an unequal size and thus the angles α can be different for the individual partial containers 12.
β=5-50 degrees, whereby the range between 15 and 25 degrees is particularly preferred.
It should be noted that, due to the circular geometry, the following applies to equally sized partial containers 12: α+β=120 degrees; as already mentioned above.
It goes without saying that the individual partial containers 12 do not have to be of the same size. For example, it is possible that one of them is larger or smaller than the other two. It is also possible that all three are of different sizes. This also applies to the corresponding angles α. In addition, the air gaps 18, 18a and thus the angles β can also vary in size. It is of course also possible that more or less than three of the partial containers 12 are provided. In such cases, of course, there are other relations for the angles mentioned, which are generally known to the expert and which need not be explained here in more detail.
In
Such a two-chamber design is easier to produce than a container with three or more chambers. Furthermore, the design is particularly suitable for beverage cans which are usually made of metal, such as sheet, aluminum or the like, where deep drawing or punching is often used without a welding process. For the sake of completeness, a container with two partial containers 12 and/or 112 can also be designed in such a way that one or both of the air gaps 18 and/or 118 have the cross-section of a circular sector, facilitating a prominent aesthetic appearance.
In the embodiments of the container according to the invention or body 10 described so far, a central element 16 and/or 116 is provided in each case, which is firmly connected to the associated partial containers during the production process. However, the container in accordance with the invention is by no means limited to this. Further designs are possible, whereby several of the partial containers 12 and/or 112 form a common body 10 only after being assembled together. This will be discussed in more detail below.
To this end, the central element 216 is designed in such a way that a middle part 217 is present, which has a bulge 219 at each of its ends. In addition, each of the partial containers 212 has a groove 214 which is designed and arranged such that one of the bulges 219 can be inserted there so that the two partial containers 212 can be interlocked by means of the central element 216. Such an insertion of the bulges 219 can be done for example by
Sliding in from below, i.e. from the bottom of the body 10,
Sliding in from above, i.e. from the neck 11 of the body 10
and/or by
lateral engagement of the bulges 219 in the grooves 214, which is facilitated by the elasticity of the material used and by a suitable design of the two elements 214, 219.
Preferably, at least one of the bulges 219 has a latching element (not shown in the figures) which, together with an associated counterpart located at a suitable location of the associated groove 214, allows it to be fixed against displacement between the central element 216 and the corresponding partial container 212. Depending on the design of the latching elements, this fixation can be
Easily released by applying a force, as with a spring that engages in a trough, or
Permanent, as with a lock that works according to the snap-fit principle.
The partial containers 212 can also be used individually, i.e. without a connection to one of the other partial containers 212 by means which close the opening of the corresponding partial container 212 even without using the closure 20. Such means can be, for example, a foil that is welded or glued on after filling. A sealing plug is also conceivable that can be inserted into the correspondingly designed opening of the partial container 212, for example by means of a screw connection with an internal thread and/or an external thread at the openings of the partial container 212, a crimp connection and/or the like. It is also possible that at least some of the partial containers 212 have more than one opening.
It should be noted that the illustrations shown in
Another way of connecting several of the partial containers 12, 112 is to connect them directly, i.e. without forming a special central cement. Such connections are preferably established during the production process such as, for example, during an injection molding process by accumulation of material. Preference is given to point-wise connections whose number along the vertical axis of the body 10 depends on its height. Two to four such connections are preferably.
The closure 20 shown in
Nubs 30, which get stuck in the air gaps 18 when the closure 20 is attached (see
A thread with corresponding mating thread on the neck 11 (not shown in the Fig.),
And/or the like.
A central part 26, which projects into the interior of the closure 20 and is inserted into the opening of the central element 16 when assembled in order to center the closure 20 on the neck 11.
Three webs 28, which protrude into the interior of the closure 20 and, in the assembled state, over the air gap 18 therein.
Three nubs 30, which also protrude into the inside of the closure 20 and, in the assembled state, into the air gap 18 therein to fix the closure 20.
Three flaps 32, which are designed and arranged in such a way that each of them is arranged above one of the partial containers 12 in the mounted condition of the closure 20. The flaps 32 are hinged to their inner side 34, i.e. the side facing the central part 26, so that they can be swiveled upwards accordingly. A suitable and preferred joint for this is, for example, an integral hinge or a snap hinge, as described in DE 42 19 598 A1. Furthermore, it is also possible to use flap bearings, in which pins are rotatably mounted in corresponding openings. It is particularly advantageous if these bearings are inside the closure 20. This enables the cover 22 to have an almost flat surface without any disturbing mechanical parts.
Three warranty bands 36, which are arranged on the outside of the flaps 32 and are described in more detail, for example, in DE 42 19 598 A1.
The embodiments described so far are only examples. Various variations and modifications of the described embodiments are possible, such as for example:
The number of partial containers (12; 112; 212) can also be increased if several bodies 10 are connected to each other. A corresponding example is shown in
The cross-section of the central element 16, 116 can have a variety of shapes. In addition to the shapes already described, polygonal shapes are also possible, i.e. shapes that are triangular, square, etc. Such shapes can be used to increase the rigidity of the container.
The course of the associated partial container connections can be designed in various ways, such as in particular:
Along the longitudinal axis L or an axis substantially parallel thereto, where a large number of sectional connections between the partial containers are preferred.
and/or
Spirally along the spiral forming the partial containers.
The type of partial container connections can be diverse, i.e. in particular by means of a suitable central element, by means of suitable material accumulations and/or the like.
It is also possible that, for the spiral-shaped embodiments, there is an air gap over the entire length of adjacent partial containers or only as far as possible. Such a design of the partial containers causes turbulence of the substances—such as liquids, etc.—during pouring. This ensures good mixing, both within the respective partial container and in the area of the openings.
It is also possible that only one of the partial containers has a spiral shape, at least in sections. It can be wound around further partial containers. A suitable connection of this spiral-shaped partial container exists at least to one of the other partial containers that it encompasses. Suitable manufacturing processes must be used for such designs, employing, for example, a 3-D printer.
A container is an object that has at least one chamber. Its main purpose is to separate its content from its environment.
A fluid medium is a gas or a liquid.
A granular medium consists of many small, solid particles such as grains or balls. Examples of granular media are grainy materials such as sand, pulverulent materials such as powder or, in large quantities, loose materials such as rubble, gravel or boulders.
DE 44 39 869 A1
DE 100 54 587 A1
DE 42 19 598 A1
DE 196 44 007 A1
WO 2011/116 442 A1
WO 2012/117 121 A1
U.S. Pat. No. 6,325,229 B1
WO 2011/157 851 A1
DE 85 26 243 U1
Number | Date | Country | Kind |
---|---|---|---|
10 2017 006 857.7 | Jul 2017 | DE | national |
Filing Document | Filing Date | Country | Kind |
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PCT/EP2018/065119 | 6/8/2018 | WO | 00 |