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    • 专利摘要:
    capsule for an extraction material, process for producing the capsule and device for preparing coffee. the present invention relates to a coffee capsule (1), the outer dimensions of which are adjusted to the size of a filter coffee capsule which, however, has a separating element (22), which separates an empty area (32) from an area of the extraction material (31). furthermore, there is at least one liquid channel (33), which crosses, for example, the empty area. the liquid channel, the liquid channels and the area of the extraction material are configured in such a way that, in an injection site, the water introduced in the capsule or the drink produced in the capsule cannot, in essence, reach the empty area.
    公开号:BR112012028095B1
    申请号:R112012028095-3
    申请日:2011-05-02
    公开日:2020-06-02
    发明作者:Louis Deuber
    申请人:Qbo Coffee Gmbh；
    IPC主号:
    专利说明:

    DESCRIPTION REPORT OF THE INVENTION PATENT FOR CAPSULE FOR AN EXTRACTION MATERIAL AND SYSTEM FOR DRINKING PREPARATION.
    [0001] The invention relates to the preparation of drinks or the like from an extraction material contained in a capsule, for example, ground coffee. It refers, in particular, to a perforable capsule as a portion package, as well as a process for its manufacture.
    [0002] Extraction devices for the preparation of beverages from an extraction material existing in a portion package are known, for example, as coffee machines or espresso machines, and enjoy, as always, increasing popularity. In many corresponding systems, portion packs are made as capsules, in which the extraction material, for example, is hermetically sealed. For extraction the capsule is perforated on two sides that are opposite each other. An extraction liquid is introduced on the first side - usually hot water. On the second side, the extraction product is removed from the capsule. Depending on the drink to be prepared and the system, in this case, inside the capsule a considerable pressure of, for example, 5-20 bar must reign.
    [0003] As capsule materials, aluminum and synthetic materials, for example, polypropylene, have become known. The aluminum capsules have a very good durability of the extraction material, but they consume a lot of energy in manufacturing. With reference to energy consumption and disposal, polypropylene capsules are advantageous, but they place high demands on the drilling mechanisms.
    [0004] Capsules with integrated filter media are available on the market, as well as capsules with
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    2/23 only one wrap around the extraction material. For the latter, the drilling mechanism needs to be executed in such a way that the extraction material cannot be removed from the capsule unwantedly together with the extraction product.
    [0005] An example for a capsule without an integrated filter medium is disclosed, for example, in EP 1 886 942.
    [0006] A cup-shaped capsule is indicated in patent EP 1
    344 722. The capsule, according to this publication, has a distribution or collection organ inside the capsule, which separates a first area of the capsule to be filled with water or drink, from a second area, which contains the extraction material. The dispensing or collecting organ is equipped with an infinite number of liquid channels for dispensing water or collecting the drink, and is designed and arranged in such a way that it is not perforated by means of the perforation of the coffee machine.
    [0007] In addition, for example, from US patent 2005/0051478 capsules are known, with an integrated filter. The filter takes on the function of a paper filter from a well-known filter coffee machine: water in the capsule area equipped with the extraction material is injected with little or no pressure through a drilling tip, and after the extraction, the coffee manages to reach a collection area, through a paper filter specific to the capsule, from where it is deflected by another drilling tip.
    [0008] From WO 2008/011913 a capsule is known, which has an outlet, which is closed with a tissue forming a cream. The capsule also has a safety cap, which has a protrusion that holds the tissue in place. On the side opposite the outlet, a closure is provided, which forms a surrounding annular-shaped cavity around an entrance.
    [0009] In many regions, filter coffee enjoys, as always,
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    3/23 of great popularity. In this case, larger portions of up to 3 or 4 dl of filter coffee are often filled in coffee cups. If filter coffee of this type has to be prepared from a serving capsule, an amount of coffee of, for example, 6 to 8 g, such as that found in known serving capsules from machines, is often not sufficient. of espresso coffee. Therefore, in markets with a propensity for filter coffee, coffee machines that work with portion capsules are not very widespread. Where they are nevertheless employed, the capsules are markedly larger than the known capsules of known espresso capsule systems. The coffee machines have a larger infusion space, adapted for larger portion capsules, and a pump configured accordingly to transport larger amounts of hot water under low pressure. Therefore, these espresso machines are not suitable for brewing espresso coffee.
    [0010] However, it would be advantageous if filter coffee lovers could also optionally prepare an espresso, with the means at their disposal.
    [0011] One task of the invention is to find a solution to this problem. This solution should make it possible, in particular, for lovers of both filter coffee in larger volumes (and with larger quantities of coffee to prepare) as well as espresso coffee, these two drinks are available, without having to have two devices Completely different.
    [0012] The task is solved by means of the invention, as defined in the patent claims.
    [0013] According to a first aspect of the invention, a portion capsule for an infusion, in particular, a coffee capsule is made available, the outer dimensions of which are adjusted to the size of a capsule for a large portion of filter coffee (per
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    4/23 example, 300 ml or more), which, however, has a separating element, which separates an empty area from an area of the extraction material. In addition, there is at least one liquid channel, which crosses, for example, the empty area. The liquid channel / liquid channels and the area of the extraction material are configured in such a way that, in an injection site, the water introduced in the capsule or the drink produced in the capsule cannot, in essence, reach the empty area.
    [0014] The extraction material area, the empty area, the separation element and the liquid channels, in this case, are all arranged inside the capsule, that is, in the volume included by the outer wall.
    [0015] In general, the empty area is limited by the separation element on one side, and by a part of the capsule wall on the other side.
    [0016] In the text in question, coffee prepared with low pressure of, for example, less than 5 bar, in particular 3 bar or less, and in a greater quantity of liquid, is generally referred to as filter coffee, while under the express designation coffee drinks with high pressure of, for example, more than 5 bar or more than 8 bar are collected. The filter coffee concept, therefore, also covers coffee drinks, in which there is no filter in itself, and espresso covers, for example, also the long espresso.
    [0017] The filling of a large capsule with a volume of, for example, 30 ml with a small amount of coffee, for example, about 7 g, was not shown as an advantageous option, since in such a configuration the coffee powder would only suffer turbulence and no espresso could be prepared.
    [0018] The procedure according to the first aspect, therefore, allows a portion capsule with a volume
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    5/23 relatively large has a small volume filling area, that is, the area of the extraction material, in which a reduced amount of coffee is available. Due to the liquid channels, however, in opposition to the known approaches of the prior art, the entire external volume of the capsule (the interior of the entire capsule) is not filled with liquid. For the preparation of espresso, the pumping power of a liquid pump and / or the passage time important for the quality of the drink, therefore, need not be greater than in known espresso machines, due to the volume of the capsule bigger. There is also no disadvantage that, it would be necessary to scald a larger quantity of drink, around the volume of the larger capsule (in comparison with the known capsules), and / or because, after the infusion process, the capsule would be filled with a large percentage of hot water or drink. The difference in volume between a large capsule for filter coffee - that capsule should receive up to about 15 grams of coffee or more, and therefore it should have a useful volume for filling about 30 to 34 ml - and a espresso coffee capsule, about half the volume, compared to liquid volumes of an average espresso of, for example, 25 ml to 40 ml is perfectly relevant.
    [0019] Compared to systems conceivable with a coffee machine, which is made for capsules of different sizes, there is the advantage that the coffee machine for capsule systems according to the first aspect of the invention, only requires an infusion space in order to prepare coffee with different filling volumes. For this reason, also the supply and discharge conductors to and from the infusion space, the drilling means, the movement device for closing the infusion space, etc. they do not have to be double predicted.
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    6/23 [0020] The empty area can be an area of hollow space, which is formed by the outer wall of the capsule and the separation element, and is filled, in essence, only with air or a shielding gas; also a suitable filling material, for example based on a solid foam, can be available in the empty area. The empty area can be traversed by the liquid channels, then, for example, in the form of tubes, which lead to the area of the extraction material. Among the forms of execution with the liquid channels that cross the empty area, and lead to the area of the extraction material are often those that are particularly advantageous, in which the empty area is on the injection side and the area of the extraction material is on the extraction side of the capsule. The positions of the liquid channels are then adjusted to the positions of injection tips of the brewing module of the coffee machines, in such a way that the injection of the brewing liquid takes place automatically into the liquid channels.
    [0021] The liquid channels do not necessarily need to cross the empty area in the sense that, they are surrounded on all sides by the empty area, but they can be conducted, for example, along a side wall.
    [0022] In forms of execution, in which the liquid is injected on the side of the empty area, the injection site, in general, is defined by the meeting point of the liquid channels on an external wall on the injection side. The position of the infusion module's piercing tips is then adjusted to the capsule in such a way that the outer wall is pierced at the corresponding location, and because the piercing opening extends only over an area of the surface covered by the corresponding liquid channel.
    [0023] But the fact is not excluded that, on the injection side, a specially designed collection area is available, from which the liquid can reach the liquid channels, and from these channels in
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    7/23 followed by the extraction area.
    [0024] In the execution forms, in which the liquid is injected in the area side of the extraction material, the corresponding considerations for the location of the drilling tips of the outward driving device apply.
    [0025] The procedure according to the first aspect can be performed with various injection devices and outward driving devices. Among them are, on the one hand, systems, in which the capsule is perforated on the injection side and on the extraction side (on the side of the outward driving device) at the same time. These devices have, among other things, the advantage that they also work when - for example, for the infusion of filter coffee - the water pressure introduced is not high. On the other hand, the procedure, however, is also suitable for systems, in which a perforation of the capsule on the extraction side only occurs after the introduction of infusion water, then, through the pressure that arises. An example of a suitable system for polypropylene capsules is found in patent application PCT / CH2010 / 000098, the content of which by reference forms a component of the present patent application.
    [0026] The procedure according to the first aspect of the invention can also be performed with the most diverse forms and external embodiments of the capsule. Among them the known symmetrically rotating cup shape, but also alternative shapes as instructed, for example, in the patent application PCT / CH2010 / 000097, the content of which by reference likewise forms a component of the present patent application.
    [0027] The separation element can be or present a separation wall; the shape of the separating element, however, is not critical.
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    8/23 [0028] The separation element can be formed by an insertion part to be inserted in the capsule. This part forms a separation wall between the extraction material area and the empty area, as well as between the at least one liquid channel. It is executed and / or connected by sealing with an outer capsule wall, in such a way that, the liquid introduced in the capsule cannot, in essence, reach the empty area in quantities.
    [0029] Between the extraction material area and the liquid channel, an infinite number of passage openings can be made, which allow a passage of the liquid, which, however, are executed in such a way that the coffee powder cannot reach , in essence, in quantities to the liquid channel. For example, through-holes can be made by narrowing in the direction of the liquid channel. This shape has the effect that the coffee powder is wedged in the conical area as a funnel. In general, however, the insertion part or the separation element carried out in another way has no function, but merely serves for the separation between the area of the extraction material and the empty area, as well as, eventually, for the formation of the channels of liquid.
    [0030] In addition, it is also possible that the liquid channels themselves are filled with extraction material and, therefore, form, at least partially, the area of the extraction material.
    [0031] The sealing of at least one liquid channel in the direction of the empty area occurs, for example, due to the fact that the insertion part there is connected with the outer wall of the liquid-proof capsule, where the channel of liquid runs into the outer wall. This connection can be a solder connection (by ultrasound), a glue or another suitable connection. Alternatively, another suitable sealing connection can also be provided, for example, because an elastically deformable sealing element of the liquid channel
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    9/23 is pressed against the outer wall.
    [0032] A seal of the extraction material area towards the empty area can be produced in the same way, for example, by means of a liquid-proof connection (welding, gluing) of the insertion part or the separation element with the outer wall. As an alternative to this, the insertion part or the separating element may have a sealing element, which is elastically deformable, and which is pressed against the outer wall. In particular, such a sealing element can be made in such a way that it is further pressed against the outer wall, by means of an internal pressure in the area of the extraction material. The sealing member can be, for example, an outwardly projecting sealing lobe.
    [0033] Alternatively or in addition to this, a sealing lobe can also be clamped between joined parts of the outer wall of the capsule, which results in a labyrinth sealing effect. [0034] The external volume of a portion capsule according to the first aspect of the invention is, for example, between 25 and 40 ml. A relationship between the volume of the extraction material area and the external volume of the capsule is preferably at least 1.4, in particular at least 1.6.
    [0035] According to a second aspect of the invention, which is combined in a particularly advantageous way with the first aspect of the invention, a coffee preparation system is made available, which has the following elements:
    - a coffee machine, with an infusion space, into which a capsule of piercable portion can be inserted, respectively, by means of perforations on the injection side and perforations on the extraction side of the coffee machine, as well as, with a liquid pump to transport hot water into space
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    10/23 infusion, and through the piercing means on the injection side for the portion capsule,
    - a first type of coffee capsule, with a first area of the extraction material filled with coffee powder, the first area of the extraction material having a first volume, and
    - a second type of coffee pod, with a second area of the extraction material filled with coffee powder, the second area of the extraction material having a second volume,
    - the external dimensions of coffee capsules of the first type of coffee capsule are essentially identical with the external dimensions of coffee capsules of the second type of coffee capsule, and the coffee capsules of the two types are adjusted in their dimensions to the infusion space, and
    - the first volume being larger than the second volume.
    [0036] The two volumes of the first and second areas of the extraction material, in this case, differ significantly, for example, in that the first volume is at least 1.4 times the second volume, in particular, by least 1.6 times the second volume.
    [0037] In this case, the first volume is also preferably significantly larger than the filling volume of conventional espresso serving capsules, and is, for example, 25 ml or more. The volume can be, in particular, between 25 and 40 ml for a filling amount of about 10 to 18 g of coffee.
    [0038] In preferred embodiments, coffee capsules of the first type are completely filled with coffee, that is, the first volume corresponds to a total volume of the coffee capsule (that is, the volume defined by the external dimensions minus the volume external wall, in general, relatively thin).
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    11/23 [0039] In addition, the coffee machine is preferably equipped to control the liquid pump in two different operating states, for the production of different pumping pressures, with a first pumping pressure having below 5 bar or below 3 bar, and a second pumping pressure is above 8 bar or above 5 bar.
    [0040] The capsules of the second type (or capsules according to the first aspect of the invention) and the coffee machine are adjusted to each other in such a way that the injection takes place on the side of the empty area.
    [0041] Examples of carrying out the invention will be described below with the aid of drawings. In the drawings, like reference numbers designate like or similar elements. The drawings are not to scale and partially show elements corresponding to each other in different sizes from figure to figure. They are shown:
    - in figure 1 a view of a coffee portion capsule;
    - in figures 2 and 3 a view of each of the capsule body and the capsule cover, of the coffee portion capsule according to figure 1;
    - in figures 4 and 5 a view of each of a portion inserting a portion capsule;
    - in figure 6 a representation of the cut insertion part;
    - in figure 7 a bottom view of the insertion part;
    - in figure 8 a schematic sectional representation of the capsule with insertion part;
    - in figures 9 and 10, in an enlarged sectional representation of each, a detail of the insertion part or the outer wall of the capsule and the insertion part;
    - in figure 11 an insertion part of a shape of
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    12/23 alternative execution;
    - in figures 12 and 13 alternative embodiments of each, of a portion capsule;
    - in figure 14 a view of an infusion module of a coffee machine; and
    - in figure 15 a schematic representation of components of a system according to the invention.
    [0042] Capsule 1 according to figure 1 is, in essence, cube-shaped. The side above the figure, however, is slightly larger than the bottom side, in such a way that the capsule seen in a strictly mathematical form is shaped like a pyramid trunk. The angle of inclination α of the lateral surfaces in the figure in relation to those perpendicular to the base surface - naturally, that plane perpendicular to the base surface, which due to the corner passes between the base surface and the corresponding lateral surface - is very small, it is preferably at most 2 °, for example, only about 1 °. In addition, the height of the capsule corresponds above the base surface approximately to the length of the corners of the base surface.
    [0043] The outer capsule wall of a capsule body 11 shown in figure 2, and of a cap 12 reproduced in figure 3 is manufactured in the ultrasonic separation welding process. With reference to the outer wall of the capsule and referring to its manufacturing process, it refers to the international patent application PCT / CH2010 / 000097. The angle α slightly different from 0 °, from about 1 ° and the surrounding weld bead 14, which protrudes laterally on all sides around the maximum around d = 0.35 mm, are therefore clearly visible. at most about 2 to 3%.
    [0044] The outer wall of the capsule is made of polypropylene with a wall thickness of 0.1 mm and 0.5 mm, preferably
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    13/23 between 0.2 mm and 0.4 mm, for example, between 0.25 mm and 0.35 mm. Other materials are also conceivable, in particular other synthetic materials compatible with food. The wall thickness of the outer wall is, for example, on all sides, approximately equal. The outer length of the cube corners is preferably between 30 mm and 34 mm for a filling quantity of 12 to 18 g of coffee.
    [0045] In opposition to the capsule according to the patent application PCT / CH2010 / 000097, the capsule 1 according to the description in question is filled not only with the extraction product (ground coffee) and is homogeneous inside. On the contrary, inside the capsule there is an insertion part 21, such as that shown in figures 4 to 7. Likewise, that part is made, for example, of polypropylene, and has a separation wall 22 that forms the separation element, which, when it is arranged inside the capsule, separates an area of the extraction material that is above in figure 4 from an empty area of the capsule that is below in figure 4. From the separation wall 22 to the on the side of the empty area, extensions 24 of tubular shape extend, which have an approximately cylindrical hollow shape, and which serve as the liquid channels. Optional reinforcements 26 in the form of struts, which extend like the liquid channels, into the empty area between the extensions 24 and on the external side thereof. Between the interior of the liquid channels and the area of the extraction material, the separation wall is crossed by regions with passage openings 28. Through these openings, during the infusion process the hot infusion water enters the bottom in figure 4, in extraction material area, where it impregnates the extraction material in a well-known manner. [0046] In the embodiment shown, the insertion part has, in addition, a continuous wall 29, which projects in
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    14/23 how to paste to the side of the extraction material. This wall together with the separation wall forms a cup-shaped structure, in which the extraction material or a part of it is found.
    [0047] Figure 8 shows schematically how the insertion part 21 is arranged inside the capsule 1. It is also seen that the capsule is divided into three types of areas by the insertion part. The area of the extraction material 31 is separated from the empty area 32 by the horizontal separation wall 22 in figure 8. The liquid channels formed by the extensions 24 separate the areas of the liquid channels 33, together with the area 28 of the separation wall 22 , crossed by the passage openings. The extensions 24 reach the outer wall of the capsule on the side of the empty area, and are connected with this wall, for example, liquid-proof. For the infusion process, the outer wall of the capsule, on the injection side, is crossed by a drilling medium in the area of the liquid channels, which is dimensioned in such a way that the capsule is only perforated in the area of the areas of the liquid channels 33, and the infusion liquid is only inserted in these areas, and not in the empty area 32 which is next to it. In figure 8 the drill bits 41 are drawn on the injection side, represented in dashed and schematic form, and in fact, in the position in which they position for drilling, which is produced by a relative movement of the tips out of position represented to the center of the capsule. Through the passage openings 28 the liquid under pressure manages to reach the area of the extraction material 31, where an infusion process of the well-known type occurs. The exit of the drink occurs through perforations in the capsule wall which is above in figure 8. Also the perforation tips 42 on the extraction side are schematically drawn in figure 8 in the position, in which they position for the perforation. During the closing of an infusion chamber, which has the tips of
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    Perforation 41, 42, for example, the perforation tips 41 on the injection side and the perforation points 42 on the extraction side are perforated at the same time through the outer capsule wall; as mentioned, however, firstly only the drill tips on the injection side can also be drilled, and a drill can occur through the drill tips on the extraction side, so the capsule is deformed under the pressure of the infusion liquid.
    [0048] In figure 6, other characteristics are clearly visible.
    [0049] On the one hand, it can be seen that the passage openings 28 are not cylindrical, but narrow conically downwards - therefore, towards the empty area. This design has the purpose and the effect that, the coffee powder wicks / wicks in the conical area as a funnel and, therefore, also fails to reach the area of the liquid channel 33, if the capsule is exposed to mechanical vibrations. This also works, then, when the opening openings at their narrowest point have a diameter larger than the average bean size of the coffee powder.
    [0050] On the other hand, in figure 6 it is visible that, the extensions of tubular form, that form the channels of liquid, in its final side (that is, in the final side of the empty area) present a comb 24.1 tapering in the tip , which in an ultrasound weld of the insertion part works as a directional energy transmitter for the external wall on the final side, on the side of the empty area.
    [0051] Furthermore, a detail is shown in figure 9, which does not exist in figures 3 to 8, but which may exist in the form of figures 1 to 8. In the corner 29.1 of the continuous wall 29, a lobe is formed 29.2 that protrudes outwards, which in this case is in one piece with the continuous wall 29, and due to its flexible thickness it can deviate upwards (that is, towards the side
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    16/23 of the extraction material) or downwards (that is, towards the empty side). During use in the position shown in figure 8, the lobe 29.2 is pressed inwards and upwards by the outer wall.
    [0052] During the infusion process, the lobe 29.2 has a sealing effect and prevents the scalded drink, due to the infusion pressure inside the extraction material area on the outside side to reach back along the continuous wall in the area empty. The infusion pressure within the area of the extraction material will press the lobe 29.2 outward against the outer wall of the capsule possibly supported by external means of the infusion chamber - and thus automatically reinforce the sealing effect.
    [0053] It may possibly be additionally provided that, due to its position during the closing of the capsule, the lobe is tightened in the process of separation welding, between the continuous collar
    14.1 of the capsule body 11, existing initially and during the separation welding process, and the cap 12, and thus, due to the closure of the capsule, a type of labyrinth seal appears or absolutely no closure due to the material between the wall of the capsule and the insertion part. This is shown in figure 10. Figure 10 shows a detail of the capsule at the point, in which the cap 12 is connected with the body of the capsule with the separation welding process. Since the connection is a weld connection and therefore is a closure due to the material, no separation line between the material of the capsule body 11 and the material of the cap 12 is visible. The dashed line 15 shows the path approximate passage between the capsule body and the cap. The continuous collar 14.1 was separated in the separation welding process.
    [0054] As represented in the weld bead area, the lobe
    29.2 is tight between the cap and the body of the capsule, which acts as a means of sealing in the direction of a labyrinth seal.
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    17/23
    Eventually, the collar can also be welded with the body of the capsule and / or the cap. The capsule is manufactured as follows:
    [0055] In a first stage, the body of the capsule 11 is made available, and the insertion part 21 is inserted into that body. Then the end sides of the extensions 24 of the insertion part 21 are firmly welded with ultrasound welding on the bottom of the capsule body. Then the capsule is filled with the extraction material. Then, by means of the separation welding process, the cap is fixed on the body of the capsule, and eventually, as mentioned, the lobe of the insertion part can also be tightened or even welded.
    [0056] Next, some alternative embodiments of capsules according to the invention will still be discussed. In this discussion it will be deepened only in the differences from the capsule discussed above. The principles and characteristics of the form of implementation described above apply - as applicable - also to alternative forms of implementation.
    [0057] The insertion part according to figure 11 does not have a continuous wall, but consists only of the separation wall 22 and extensions 24 with the optional reinforcements 26. If applicable, a surrounding lobe, not shown in the figure, may be available directly adjacent to the separation wall, which, according to the principle discussed, has a sealing effect.
    [0058] The capsule represented only in a very schematic manner according to figure 12 differs from the forms of execution described above in the fact that the area of the extraction material 31 and the areas of the liquid channel 33 are coherent, and are interspersed . During the passage to the liquid channels, therefore, the separation wall 22 is interrupted, and the extraction material can also reach
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    18/23 to the liquid channels. The dotted area in figure 12 indicates how the extraction material is distributed. Naturally, the principle according to figure 12 can be envisaged for forms with or without a continuous wall, and for forms with or without sealing lobe.
    [0059] The principle shown in figure 12 can still be modified. For example, a single existing liquid channel can, or several liquid channels can be widened such that the liquid channel / liquid channels form the entire area of the extraction material area. The liquid channel / the liquid channels will / will be filled with extraction material, and run through the entire interior of the capsule to the upper side. A seal on the upper side can be produced, for example, by a sealing lobe projecting upwards and inwards. Alternatively, with the appropriate choice, the directional energy transmitter also includes the insertion part that forms the liquid channel / the liquid channels can be welded at the same time with the outer wall of the capsule, both on the upper side and on the lower side.
    [0060] The capsule represented in figure 13 differs from the forms of execution described above through its external form. The capsule is in the form of a symmetrically rotating cup, which tapers conically downward (therefore, towards the empty area), with a collar protruding outward. In the area of the collar, the cup-shaped body 11 is welded with the lid 12 flat. The insertion part 21 has a correspondingly adapted shape, that is, the separation wall 22 is disk-shaped. Otherwise, the same principles apply as in the forms of execution described above.
    [0061] In the above description of forms of execution, the starting point was, respectively, that the infusion liquid injection occurs on the side of the empty area and the outside conduction occurs on the side of the
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    19/23 extraction material. This is a particularly advantageous arrangement, among other things, because then, no scalded beverages remaining in the liquid channels after the infusion process is wasted, and also because eventually no problems of clogging can arise in the area of the passage openings, once that through these openings only water was passed. But it is certainly also an option to predict the reverse, to place the infusion liquid directly in the area of the extraction material, and to discharge the drink through the liquid channels.
    [0062] Figure 14 shows an infusion module for a coffee machine. The infusion module can be executed, for example, according to the teaching of the patent application PCT / CH2010 / 000099 (with or without means for compressing the capsule), whose content through the reference forms a component of the patent application in question.
    [0063] In a closed state (in figure 14 for the sake of better visibility, a non-closed state is shown) the infusion module forms an infusion chamber, whose geometry and dimension are adjusted to a corresponding capsule. By virtue of the procedure according to the invention, the infusion module is equipped both for capsules with a large amount of filling and without separating element, as well as for capsules with a low amount of filling and with separating element.
    [0064] In a well-known manner, the infusion module has, between a frame, an outward guiding device 103 conducted with two vertical guide walls, and an injector 104, which can be moved in relation to each other, for example, by a rotating operating lever.
    [0065] In figure 14, the opening opening 107 is very visible, for the introduction of the portion capsule here, in essence, cubic. THE
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    20/23 insertion opening 107 is made in the frame, is located in the area of the outward driving device 103 and remains stationary like that during a movement of the operating lever. The insertion opening 107 can be slightly tapered by narrowing downwards in order to have a centering effect on the capsule during the introduction, without the danger of tilting the capsule being too great.
    [0066] The insertion of the capsule capsule with separation element (in this case, with insertion part, which forms a separation wall) occurs in such a way that, the side that is below in figures 1,4, 6, 8, 11, 12 (corresponding to the side with the empty area) is on the side of the injector, therefore, on the right in fig. 14.
    [0067] In the operating state the infusion module serves as the horizontal infusion module of a coffee machine, which together with the infusion module features a water tank, a water heating device (for example, a continuous heater) and a pump for infusion water supply to injector 104. The corresponding supply channels 118 of the injector can be performed as well known. In addition, the injector has at least one piercing tip with a coordinated feed opening, such that the capsule can be pierced and fed with the extraction liquid through the feed opening. The coffee machine also has, for example, a container of capsules disposed below the brewing chamber, into which, after the brewing process, the capsule is automatically ejected by lifting the operating lever.
    [0068] Also the outward driving device 103 is equipped with at least one drilling tip 111 and a coordinated extraction opening. In addition, according to the configuration there is also a discharge conductor, with which the
    Petition 870190096629, of 27/09/2019, p. 23/35
    21/23 coffee coming out of the outlet of the driving device 103 (or similar) is conducted in such a way that it flows into a cup deposited in the predicted location.
    [0069] In the embodiment shown, the outward driving device 103 forms a capsule reception with a support 121 defining the support surface 120 for the inserted capsule through the introduction opening 107. The approximately cube-shaped capsule introduced through the insertion opening with the open infusion chamber it is guided through the first side walls on which the support 121 is located. Then, the infusion chamber is closed by a movement of the injector in the direction of the outward driving device 103 , so the capsule is also perforated. In the embodiment shown, a perforation occurs before the infusion process is introduced, both on the side of the injector and also on the side of the outward driving device 103. However, forms of execution are also conceivable - in particular with aluminum, but also with synthetic material such as material of the capsule wall, or part of it - in which a tear or perforation of the capsule on the side of the outward driving device 103 is produced only by internal pressure in the capsule during the introduction of the infusion process.
    [0070] Figure 15 shows in a very schematic way a coffee preparation system according to the first aspect of the invention. The coffee machine 201 has, together with an infusion chamber 202 - for example, the type illustrated with the aid of figure 14, or, for example, also formed by a plunger, and a contact surface for the plunger - a pump for the hot water transport 210, through which the hot water can be transported to the pressure infusion chamber. A pump 205 control regulates the pumping and infusion pressure. In particular, the coffee machine can be
    Petition 870190096629, of 27/09/2019, p. 24/35
    22/23 equipped to be optionally operated for a lower pumping pressure, often less than 5 bar, in particular less than 3 bar, for example, about 1.5 to 2 bar (filter coffee) or for a pressure highest pumping rate of at least 5 bar, in particular at least 8 bar, for example, between 8 bar and 20 bar (express). The switching between the different pumping pressures usually takes place manually. But there may also be a device, which regulates this automatically, for example, with the aid of the characteristics of an inserted capsule. For example, the various capsules in the system can be equipped with different markings that are readable optically or via RFID or the like, which are recognized by a corresponding reading device of the coffee machine, to which the pumping pressure is correspondingly adapted.
    [0071] In addition, the coffee brewing system features at least two types of coffee capsules 1, 1 '. These types differ in the internal volume (volume of the extraction material area), which is available to the extraction material, while the external dimensions are, in essence, identical. In particular, one type of capsule (espresso coffee capsule) can be made according to the first aspect of the invention, while another type of 1 'capsule (filter coffee capsule) is made in a conventional manner and therefore it has a completely filled internal space or, for example, it can also have a filter disposed inside the capsule.
    [0072] In the case of the coffee preparation system according to the second aspect of the invention, it would also be possible to execute the type of capsule of the espresso coffee capsule in a different way than according to the first aspect of the invention and to abolish, for example, the liquid channels, so the empty area of the espresso capsule
    Petition 870190096629, of 27/09/2019, p. 25/35
    23/23 during the infusion process would be flooded by water or drink. [0073] The application of the procedure according to the first aspect, or the second aspect is possible for drinks other than coffee, for example, tea.
    权利要求:
    Claims (12)
    [1]
    1. Portion capsule (1) for an infusion, in particular coffee, with an outer wall formed by a capsule body (11) and a lid (12) closing the capsule body, and an area of extraction material ( 31), filled with an extraction material, arranged inside the capsule, in which an empty area (32) is available inside the capsule, which is separated from the extraction material region (31) by a separating element ( 22) similarly existing inside the capsule, furthermore, inside the capsule there is at least one liquid channel (24), characterized by the fact that the separating element (22) is formed by an insertion part (21), the insertion part (21) has at least one extension (24) that protrudes away from the separation element (22) in the form of a hollow body, which reaches the outer wall, and forms the at least one liquid channel, which is sealed from the empty area and connected to the outer surface of the part of the capsule permeable to liquid where at least one liquid channel meets an outer wall, and in which the liquid, introduced into the capsule at an injection site, comes into contact with the extraction material, and can be diverted from the capsule at a different point the injection site, in essence, without the liquid reaching the empty area (32).
    [2]
    2. Portion capsule according to claim 1, characterized by the fact that at least one channel of liquid passes through the empty area.
    [3]
    Portion capsule according to claim 2, characterized in that the at least one channel of liquid is executed as tubes.
    [4]
    4. Portion capsule according to any one of the preceding claims, characterized by the fact that the insertion part (21) has a continuous wall (29), which together with the
    Petition 870190096629, of 27/09/2019, p. 27/35
    2/4 separation element (22) forms a cup-shaped structure filled with at least a part of the extraction material.
    [5]
    5. Portion capsule according to any one of the preceding claims, characterized in that the insertion part has a sealing lobe (29.2), which is pressed by a high pressure in the area of the extraction material on the outer wall.
    [6]
    Portion capsule according to claim 5, characterized in that the outer wall is formed by a capsule body (11) and by a cap (12) that closes that body, in which the sealing lobe (29.2 ) is tight between the capsule body and the cap.
    [7]
    7. Portion capsule according to any one of the preceding claims, characterized by the fact that the empty area is hollow with the exception of at least one channel of liquid and possible reinforcements (26).
    [8]
    8. Portion capsule according to any one of the preceding claims, characterized in that the separating element (22) has an infinite number of passage openings that connect the area of the extraction material with at least one liquid channel. , the passage openings (28) being preferably tapered and reducing in the direction of the liquid channel.
    [9]
    9. Drink preparation system, characterized by the fact that it features:
    - a beverage preparation machine (201), with an infusion space (202) in which a piercable portion capsule can be inserted, respectively, through the piercing means on the injection side and the piercing means (111) on the side extraction of the beverage preparation machine (201), as well as, with a liquid pump (203) for transporting hot water to the storage space
    Petition 870190096629, of 27/09/2019, p. 28/35
    3/4 infusion, and through the piercing means on the injection side for the portion capsule,
    - a first capsule (1 '), with a first area of the extraction material filled with extraction material, the first area of the extraction material having a first volume, and
    - a second capsule (1), with a second area of the extraction material filled with extraction material, the second area of the extraction material having a second volume,
    - the external dimensions of the first capsule (1 ') are, in essence, identical with the external dimensions of the second capsule (1), and the capsules (1, 1') of the two types are adjusted in their dimensions to the space infusion,
    - the second capsule (1) being a portion capsule as defined in one of the preceding claims, and
    - the first volume is larger than the second volume.
    [10]
    10. Drink preparation system, featuring:
    - a beverage preparation machine (201), with an infusion space (202) in which a piercable portion capsule can be inserted, respectively, through the piercing means on the injection side and the piercing means (111) on the side extraction of the beverage preparation machine (201), as well as, with a liquid pump (203) for transporting hot water to the infusion space, and through the piercing means on the injection side for the portion capsule ,
    - a first type of capsule (1 '), with a first area of the extraction material filled with extraction material, the first area of the extraction material having a first volume, and
    - a second type of capsule (1), with a second area of extraction material filled with extraction material, the second area of extraction material having a second volume,
    - the external dimensions of coffee capsules from
    Petition 870190096629, of 27/09/2019, p. 29/35
    4/4 first type of capsule (1 ') are, in essence, identical with the external dimensions of capsules of the second type of capsule (1), and the capsules (1, 1') of the two types are adjusted in their dimensions to the infusion space, characterized by the fact that,
    - where the capsules of the second type have an outer wall and a region of extraction material (31), which is arranged inside the capsule and is filled with an extraction material and an empty region (32) inside the capsule, the empty region being separated from the extraction material region (31) by a separating element (22), which is also present inside the capsule, and in which at least one channel of liquid (24) is also present inside the capsule, so that a liquid, which is introduced into the capsule at an injection site, comes into contact with the extraction material and can be discharged from the capsule at a point, which is not the injection site, substantially without the liquid entering in the empty region (32);
    - in which the capsules of the first type are, with the possible exception of a filter disposed inside the capsule, completely filled and do not include any separating element or any channels of liquid;
    the first volume is larger than the second volume.
    [11]
    Beverage preparation system according to claim 10, characterized in that a pumping pressure of the transport pump can be switched between at least two different operating states.
    [12]
    12. Beverage preparation system according to claim 10 or 11, characterized in that the first volume is at least 25 ml.
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    同族专利:
    公开号 | 公开日
    PL2566784T5|2019-04-30|
    US20170035237A1|2017-02-09|
    JP2013525041A|2013-06-20|
    CN102958816A|2013-03-06|
    US20130055903A1|2013-03-07|
    ES2575582T3|2016-06-29|
    WO2011137550A1|2011-11-10|
    US9387978B2|2016-07-12|
    KR20130112696A|2013-10-14|
    PT2566784T|2016-07-08|
    HUE028035T2|2016-11-28|
    CN102958816B|2016-08-03|
    EP2566784B1|2016-03-23|
    KR101832006B1|2018-02-23|
    CN105996764A|2016-10-12|
    RU2012151436A|2014-06-10|
    RU2615950C2|2017-04-11|
    BR112012028095A2|2016-08-02|
    EP2384996A1|2011-11-09|
    JP5838198B2|2016-01-06|
    DK2566784T3|2016-06-27|
    CA2797039A1|2011-11-10|
    AU2011250625A1|2012-12-20|
    AU2011250625B2|2016-07-28|
    PL2566784T3|2016-09-30|
    EP2566784A1|2013-03-13|
    US10244887B2|2019-04-02|
    HK1183003A1|2013-12-13|
    DK2566784T4|2019-02-11|
    ES2575582T5|2019-04-24|
    EP2566784B2|2018-11-07|
    CA2797039C|2017-08-29|
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    法律状态:
    2017-12-05| B25G| Requested change of headquarter approved|Owner name: LUNA TECHNOLOGY SYSTEMS LTS GMBH (CH) |
    2017-12-26| B25D| Requested change of name of applicant approved|Owner name: QBO COFFEE GMBH (CH) |
    2018-01-16| B25G| Requested change of headquarter approved|Owner name: QBO COFFEE GMBH (CH) |
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-03-19| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2019-07-09| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2020-03-24| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-06-02| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 02/05/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP10405093A|EP2384996A1|2010-05-04|2010-05-04|Capsule for coffee, method for its production and device for brewing coffee|
    EP10405093.5|2010-05-04|
    PCT/CH2011/000100|WO2011137550A1|2010-05-04|2011-05-02|Capsule for an extraction material, method for producing the capsule, and device for brewing coffee|
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