EP3107833B1 - Capsule comprising a preferably rotationally symmetrical capsule body - Google Patents
Capsule comprising a preferably rotationally symmetrical capsule body Download PDFInfo
- Publication number
- EP3107833B1 EP3107833B1 EP15704800.0A EP15704800A EP3107833B1 EP 3107833 B1 EP3107833 B1 EP 3107833B1 EP 15704800 A EP15704800 A EP 15704800A EP 3107833 B1 EP3107833 B1 EP 3107833B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- capsule
- barrier membrane
- base
- capsule according
- retaining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000002775 capsule Substances 0.000 title claims description 93
- 230000004888 barrier function Effects 0.000 claims description 62
- 239000012528 membrane Substances 0.000 claims description 62
- 239000007788 liquid Substances 0.000 claims description 27
- 239000000126 substance Substances 0.000 claims description 23
- 230000014759 maintenance of location Effects 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 235000013361 beverage Nutrition 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 235000013353 coffee beverage Nutrition 0.000 description 6
- 239000006260 foam Substances 0.000 description 6
- 239000008267 milk Substances 0.000 description 4
- 235000013336 milk Nutrition 0.000 description 4
- 210000004080 milk Anatomy 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000007901 soft capsule Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- YSXLJTGZMRNQSG-UHFFFAOYSA-L disodium;6-amino-5-[[2-[4-[2-[4-[2-[(2-amino-5-sulfonatonaphthalen-1-yl)diazenyl]phenyl]sulfonyloxyphenyl]propan-2-yl]phenoxy]sulfonylphenyl]diazenyl]naphthalene-1-sulfonate Chemical compound [Na+].[Na+].C1=CC=C2C(N=NC3=CC=CC=C3S(=O)(=O)OC3=CC=C(C=C3)C(C)(C=3C=CC(OS(=O)(=O)C=4C(=CC=CC=4)N=NC=4C5=CC=CC(=C5C=CC=4N)S([O-])(=O)=O)=CC=3)C)=C(N)C=CC2=C1S([O-])(=O)=O YSXLJTGZMRNQSG-UHFFFAOYSA-L 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000020124 milk-based beverage Nutrition 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
- B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
- B65D85/8043—Packages adapted to allow liquid to pass through the contents
Definitions
- the invention relates to a capsule comprising a preferably rotationally symmetrical capsule body according to the preamble of claim 1.
- Such capsules are now widely used in particular for the preparation of coffee or mixed coffee drinks.
- Capsules of this type can also be used to produce milk foam, mixed milk drinks or fruit drinks from concentrate.
- the capsule forms a portion packaging, which must hold the contents in a stable position and preferably in an aroma-tight or oxygen-tight manner.
- the capsule is opened and a liquid is introduced on the inlet side by penetrating the lid when the capsule is enclosed in a beverage preparation machine.
- the outlet opening is sealed by a barrier membrane, which only tears open under the influence of the internal pressure that builds up and releases the processed liquid.
- a capsule has become known in which the base has a support structure over which a penetrable output wall is stretched. When internal pressure is built up, the output wall is pressed against penetration elements at the bottom of the capsule so that the wall is penetrated.
- the substance lies directly on the penetrable initial wall.
- such a construction is only suitable if the substance is to be dissolved by the inflowing liquid. For an extraction, such as when preparing coffee, an additional filter would have to be provided, otherwise coffee particles would be washed out.
- a portion capsule with ground coffee for producing a coffee drink has become known.
- the opening at the bottom is closed by a pierceable film.
- a filter element is arranged directly above the bottom of the capsule, which is supported on the capsule bottom and which is laterally snapped into a circumferential groove in the side wall of the capsule.
- ES 2 398 278 A1 discloses a capsule with a filter plate and a barrier membrane, which directly closes the inlet opening into the outlet nozzle of the capsule body.
- a disadvantage of the known capsules is that they are each strongly tailored to the drink to be prepared and therefore cannot be used universally.
- the automatic opening under the influence of internal pressure is difficult to control.
- foam it is desirable for foam to form, but this is only possible under certain pressure conditions and with the addition of air. It is therefore an object of the invention to create a capsule of the type mentioned at the outset, which avoids the disadvantages mentioned and which is suitable for both extraction processes and dissolution processes, the hermetic closure at the outlet opening being exclusively under the influence of the internal pressure and/or or can be exposed with penetrating agents.
- good mixing and, if possible, foam formation should be achieved.
- the receiving shoulder makes it possible for different retaining floors to be used using the same capsule body, depending on the intended purpose.
- a locking connection has proven to be particularly advantageous. Pressing in or even gluing or welding in would also be conceivable.
- the capsule body can be manufactured as an injection molded part or as a deep-drawn part.
- the retention base has the task of retaining the substance, which is usually powdery, so that the barrier membrane is not exposed to the substance.
- the substance-free space delimited by the barrier membrane and the retention base contains a small gas supply, for example air or nitrogen, which significantly improves foam formation.
- the barrier membrane can only be torn or burst under the influence of the internal pressure in the capsule. This has the advantage that no mechanical means need to be provided to expose the outlet opening. Depending on the wall thickness, fastening or support of the barrier membrane, the opening process can be controlled relatively precisely.
- the retaining base and the barrier membrane can be arranged plane-parallel to one another. However, this is not mandatory. In particular, the retaining base could also be conical or convex.
- the barrier membrane is attached to its outer edge on a peripheral edge which is formed in one piece with the bottom of the capsule and which runs within the receiving shoulder. In this way, both the barrier membrane and the retaining floor have attachment lines assigned to them. With a view to efficient manufacturing, the barrier membrane can be inserted first and then the retaining floor.
- the barrier membrane is attached in the center to a support body which is arranged coaxially to the longitudinal central axis of the capsule and in particular to the outlet opening. It is particularly important that the barrier membrane not only rests on the support body, but is firmly connected to it. Depending on the nature of the barrier membrane, this promotes tearing or bursting, namely in a circumferential area around the center of the capsule.
- the barrier membrane is advantageously stretched freely between the peripheral edge and the support body without any support or fastening. In certain cases, however, it would also be conceivable for penetration elements to be arranged below the barrier membrane on the bottom of the capsule, which penetrate the barrier membrane when it is bent.
- the distance between the barrier membrane and the retention base can vary greatly.
- a distance of 0.1 to 6 mm has proven to be particularly advantageous.
- Star-shaped reinforcing ribs can be arranged on the underside of the retaining base. However, reinforcing ribs on the top of the retaining floor or on both sides are also conceivable. Such ribs prevent a retention base made of plastic from bending too much under the influence of pressure and temperature.
- the retaining floor can be designed as a sieve floor with a plurality of openings.
- the size and number of openings depends on the grain size of the substance to be retained and the desired flow speed.
- the retention base can also be part of a cylindrical receiving cup for the substance.
- the substance obviously does not fill the entire capsule body. Rather, a cavity or an annular cavity remains around the receiving cup. This can be used as an inflow space for the liquid or it can in turn accommodate a second substance.
- the receiving cup can be supported in the upper area facing the lid with a collar on the side wall of the capsule.
- This collar can be provided with openings so that liquid can also flow into the annular space below the collar.
- the upper edge of the receiving cup extends beyond the attachment point of the collar, so that an upwardly open channel is formed between the collar and the upper edge. A space can remain between the upper edge and the lid so that the substance in the receiving cup can also spread into the channel above the collar.
- the retaining base can also be closed and only be provided with a plurality of slots or grooves on its outer circumference. These slots or grooves can be arranged, for example, in an apron directed towards the bottom or the lid of the capsule. The slots or grooves promote flow around the closed retaining base, whereby strong shear forces can be achieved depending on the design.
- a closed retention base is suitable, for example, for holding milk powder to form milk foam.
- the barrier membrane can consist of a foil made of aluminum or an aluminum alloy.
- a wall thickness of 0.01 to 0.4 mm is particularly advantageous under the internal pressure of up to 20 bar that occurs in a beverage preparation machine proven.
- the barrier membrane could also consist of a plastic material or a laminate.
- the barrier membrane can also be designed as an actual rupture disk made of plastic material. In such a case, the wall thickness is, for example, from 0.005 to 0.4 mm.
- barrier membrane Regardless of the nature of the barrier membrane, it can be particularly advantageous if it has one or more predetermined breaking points. In this way, openings can be created in a very targeted manner and certain flow conditions can be achieved.
- a particularly advantageous assembly of the retaining base can be achieved if a handle is arranged on the side facing the lid.
- This can, for example, consist of ribs arranged in a star shape, which additionally stiffen the retaining base.
- the barrier membrane is attached in the center to a support body which is arranged above the outlet opening and on the outer circumference of which slot-shaped openings are preferably arranged, which extend from the support plane of the barrier membrane against the floor.
- the support body can be surrounded by a baffle wall provided with openings, the openings of the baffle wall being arranged radially offset from the openings of the support body.
- a baffle wall provided with openings, the openings of the baffle wall being arranged radially offset from the openings of the support body.
- Foam formation is promoted by the air supply present in the substance-free space.
- the barrier membrane is also firmly connected to the upper edge of the baffle wall, so that the annular chamber between the support body and the baffle wall remains delimited on the top by the barrier membrane even after it has been torn.
- the invention also relates to a system comprising a capsule described above and a beverage preparation machine with a receiving chamber for the capsule, as well as with means for penetrating the lid of the capsule and for passing a liquid under pressure through the capsule. It does not matter whether the liquid is injected into the interior of the capsule, for example using a hollow needle, or whether the liquid is pressed through a plurality of perforation openings.
- a capsule 1 consists of a capsule body 2, for example made of plastic material, which has a side wall 3 and a base 4.
- a pipe socket 23 with an outlet opening 8 is arranged coaxially to the longitudinal central axis of the capsule.
- the pipe socket 23 is additionally connected to the floor 4 via stiffening ribs 24.
- a circular receiving shoulder 10 is also arranged on the floor 4 and is formed by a depression 25 in the floor.
- a pipe socket 23 extends downward from the recess, in the cross section of which a baffle plate 26 is held. The pipe socket 23 opens into the outlet opening 8.
- the capsule body 2 encloses a total of a chamber 6, which can accommodate a substance 7.
- this substance is held within a receiving cup 17, which is formed in one piece with a retaining base 11.
- This retention floor is designed as a sieve floor with sieve openings.
- a circumferential snap edge 28 is arranged below the retaining base, with the help of which the entire receiving cup is snapped into the receiving shoulder 10.
- the upper edge of the receiving cup is welded all around to the lid 5.
- vertical slots 27 are provided all around the upper edge, through which a liquid injected into the outer annular chamber can penetrate into the interior of the receiving cup.
- a barrier membrane 9 in the form of a film is attached to the bottom of the recess 25 and above the outlet opening 8. In this way, a substance-free space 12 is formed between the barrier membrane 9 and the retaining base 11. A liquid introduced into the chamber 6 on the inlet side flows through the substance 7 and the perforated retaining base 11 and then causes the barrier membrane 9 to tear open.
- the exemplary embodiment according to Figure 3 differs from the one according to Figure 2 mainly due to the fact that the receiving cup 17 is closed at the upper end not by the lid 5, but by a separate filter film 29, through which the liquid can flow.
- the slightly inwardly curved lid 5 rests loosely on this filter film.
- a circumferential sealing lip 30 is arranged on the bottom 4, which presses laterally against the receiving cup 17 and thus effects an improved seal.
- the pipe socket 23 with the integrated baffle plate 26 also has a slightly different configuration.
- the retaining base 11 is essentially designed as a closed plate.
- An overflow pipe 31 is arranged in the center, the upper end of which is closed off via a predetermined breaking point 32.
- This can be designed, for example, as a slot or as a cross slot.
- the bottom 4 of the capsule is designed in practically the same way as in the exemplary embodiment according to Figure 3 .
- a liquid introduced into the chamber 6 through the cover 5 flows through the substance 7 and initially causes the predetermined breaking point 32 to burst. The liquid then flows through the overflow pipe 31 into the substance-free space 12 and then causes the barrier membrane 9 to tear before it passes through Outlet opening 8 flows out.
- the retention base 11 is only designed as a simple sieve base with openings 16.
- the anchoring in the ground 4 is carried out in the same way as in the exemplary embodiment Figure 3 .
- a cage 34 provided with openings is arranged on the closed retention base 11.
- a soft capsule 35 filled with aromatic substances is held in this cage.
- the rest of the arrangement is identical to that in the exemplary embodiment Figure 4 .
- a liquid introduced into the chamber 6 first flows through the substance 7 and then penetrates into the cage 34, where the soft capsule is dissolved.
- the resulting mixture of extract and contents of the capsule then flows downwards into the substance-free space 12 and causes the barrier membrane 9 to tear.
- the barrier membrane is designed as an actual rupture disk with predetermined breaking points 20.
- This disc made of plastic material rests on the bottom of the recess 25 and is sealingly connected to it on the outer circumference. In order to prevent the pane from bending, it also has support means 36 on the underside, which are also supported on the bottom of the recess.
- the latched receiving cup 17 is designed similarly to the one according to Figure 2 .
- the lid 5 is connected directly to the upper edge of the receiving cup and the liquid penetrates through side slots 27.
- the barrier membrane designed as a rupture disk is only opened in the area of the predetermined breaking points 20, which are arranged in a star shape in the present exemplary embodiment.
- a substance-free gap 12 is obviously formed.
- the exemplary embodiment according to Figure 10 is designed in the same way as in the exemplary embodiment described above in terms of the nature of the barrier membrane 9. Instead of the receiving cup, however, there is only a simple one designed as a sieve base Retaining floor 11 installed, similar to the exemplary embodiment according to Figure 5 .
- the exemplary embodiment according to Figures 11 to 14 shows an arrangement in which the barrier membrane 9 is connected in the center to a support body 14.
- the barrier membrane On the outer circumference, the barrier membrane is firmly connected to a peripheral edge 13, which is formed in one piece with the bottom 4 of the capsule.
- the barrier membrane 9 is freely stretched between this circumferential edge 13 and the support body 14.
- the support body is star-shaped here. Under the influence of the internal pressure, the tearing stress in the barrier membrane 9 increases sharply along the outer edge of the support body 14 until the barrier membrane tears and the resulting cracks continue towards the circumferential edge 13.
- the circumferential edge 13 is arranged within the receiving shoulder 10 and is slightly lowered compared to it.
- the retaining floor 11 is designed here to be completely closed without a sieve structure and is provided with a circumferential apron 18 on the outer circumference.
- Vertical grooves 19 are arranged in this at regular intervals and extend into the transition area between the apron and the retaining floor.
- a circumferential intermediate rib 33 is arranged between the receiving shoulder 10 and the edge 13, the upper end face of which rests on a corresponding rib on the retaining base 11.
- a liquid introduced into the chamber 6 first penetrates through the grooves 19 into the area of the locking connection on the receiving shoulder 10 and flows through the warping gap line.
- the butt connection is then pressed onto the end face of the intermediate rib 33 and the liquid mixed with the substance penetrates into the substance-free space 12 between the barrier membrane 9 and the retaining base 11.
- the barrier membrane 9 then tears and the mixture flows out of the outlet opening 8.
- This arrangement is suitable are substances that form a solution or a mixture with the liquid flowing through, such as milk powder or chocolate powder.
- the Figure 15 shows a retention base 11, which is inserted into the capsule body 2 according to Figure 11 can be used, which, however, is designed as a sieve base with openings 16.
- a handle 21 is also provided here.
- a receiving cup 17 is inserted into the capsule body 2 or into the receiving shoulder 10, but is provided with a circumferential collar 38 in the upper area on the outside. This is supported on the side wall 3 of the capsule and is also provided with openings 39.
- the retaining base 11 is designed as a sieve base with openings 16 and also with reinforcing ribs 15 on both sides.
- the capsule body 2 is designed essentially the same as in the exemplary embodiment according to Figure 11 .
- the lid not shown here, lies loosely on the upper edge of the receiving cup 17 or is possibly connected to it in a detachable manner under pressure.
- inlet slots 27 can also be provided in the upper edge.
- the collar has the function of a flow brake. The liquid then penetrates through the substance in the receiving cup and through the perforated retention base 11 into the substance-free space 12 between the barrier membrane 9 and the retention base 11.
- the capsule body 2 according to Figure 18 essentially corresponds to that according to Figure 16 .
- the support body 14 is not designed in a star shape, but rather in the shape of a slightly truncated cone with vertical slots 40 which extend to the contact surface of the barrier membrane 9.
- a gear-like edge region is also formed, at which the barrier membrane 9 can tear under the influence of pressure.
- a flow element 41 also extends in the center into the pipe socket 23.
- the fan-like segments 37 can again be seen, which promote a swirl-like flow.
- the capsule according to the Figures 20 and 21 is structured similarly to that according to Figure 16 .
- a receiving cup 17, which is provided with a sieve base 11, is snapped into a recess in the capsule base.
- the sieve base is reinforced by means of star-shaped reinforcing ribs 15.
- the receiving cup is supported on the side wall 3 via a trumpet-shaped collar 38.
- the upper edge of the cup extends beyond the collar attachment point.
- the lid 5 is arranged at a distance from the upper edge of the collar, so that the substance is in the receiving cup 17 can also spread into the ring channel above the collar 38.
- the support body 14 in this exemplary embodiment is similar to the exemplary embodiment according to Figures 18 and 19 provided with slots 40, which are arranged at regular intervals on the outer circumference.
- the barrier membrane is 9 in Figure 20 not shown and in Figure 21 partially broken.
- the support body 14 is surrounded by a baffle wall 42, in which slots 43 are also arranged.
- the baffle wall has the appearance of a battlement with crenellations arranged in it.
- the slots 43 in the baffle wall are arranged radially offset from the slots 40 in the support body 14, which forces the flow to be swirled.
- eight slots are arranged in the support body and in the baffle wall. This number could of course be changed depending on the application and it would also be conceivable that the number of slots in the support body does not correspond to the number of slots in the baffle wall.
- the barrier membrane 9 is fixed, for example welded or sealed, both on the surface of the support body 14 and on the upper edge of the baffle wall 42. On the outer circumference, the barrier membrane 9 is connected to the surface of the circumferential edge 13.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatus For Making Beverages (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
Description
Die Erfindung betrifft eine Kapsel umfassend einen vorzugsweise rotationssymmetrisch ausgebildeten Kapselkörper gemäss dem Oberbegriff von Anspruch 1. Derartige Kapseln finden heute insbesondere für die Zubereitung von Kaffee oder Kaffeemischgetränken verbreitet Anwendung. Kapseln dieser Art können auch für die Herstellung von Milchschaum, Milchmischgetränken oder Fruchtgetränken aus Konzentrat eingesetzt werden.The invention relates to a capsule comprising a preferably rotationally symmetrical capsule body according to the preamble of
Die Kapsel bildet dabei eine Portionsverpackung, welche den Inhalt lagestabil und vorzugsweise auch aromadicht bzw. sauerstoffdicht aufnehmen muss. Bei zahlreichen gattungsmässig vergleichbaren Kapseln erfolgt das Öffnen der Kapsel und das Einbringen einer Flüssigkeit auf der Eintrittsseite durch Penetration des Deckels beim Einschliessen der Kapsel in eine Getränkezubereitungsmaschine. Auf der Austrittsseite ist die Austrittsöffnung durch eine Sperrmembran abgedichtet, welche erst unter der Einwirkung des sich aufbauenden Innendrucks aufreisst und dabei die aufbereitete Flüssigkeit frei gibt.The capsule forms a portion packaging, which must hold the contents in a stable position and preferably in an aroma-tight or oxygen-tight manner. In the case of numerous generically comparable capsules, the capsule is opened and a liquid is introduced on the inlet side by penetrating the lid when the capsule is enclosed in a beverage preparation machine. On the outlet side, the outlet opening is sealed by a barrier membrane, which only tears open under the influence of the internal pressure that builds up and releases the processed liquid.
So ist durch die
Durch die
Ein Nachteil der bekannten Kapseln besteht darin, dass sie jeweils stark auf das zuzubereitende Getränk ausgerichtet sind und somit nicht universell eingesetzt werden können. Ausserdem ist das selbstständige Öffnen unter der Einwirkung eines Innendrucks nur schwer beherrschbar. Schliesslich ist es bei zahlreichen Getränken wünschenswert, dass sich eine Schaumbildung einstellt, was jedoch wiederum nur unter bestimmten Druckverhältnissen und unter Beimischung von Luft möglich ist. Es ist daher eine Aufgabe der Erfindung, eine Kapsel der eingangs genannten Art zu schaffen, welche die genannten Nachteile vermeidet und welche sich sowohl für Extraktionsprozesse, wie auch für Lösungsprozesse eignet, wobei der hermetische Verschluss an der Austrittsöffnung ausschliesslich unter der Einwirkung des Innendrucks und/oder mit Penetrationsmitteln freilegbar ist. Ausserdem soll eine gute Durchmischung und nach Möglichkeit eine Schaumbildung erzielt werden.A disadvantage of the known capsules is that they are each strongly tailored to the drink to be prepared and therefore cannot be used universally. In addition, the automatic opening under the influence of internal pressure is difficult to control. Finally, for many drinks it is desirable for foam to form, but this is only possible under certain pressure conditions and with the addition of air. It is therefore an object of the invention to create a capsule of the type mentioned at the outset, which avoids the disadvantages mentioned and which is suitable for both extraction processes and dissolution processes, the hermetic closure at the outlet opening being exclusively under the influence of the internal pressure and/or or can be exposed with penetrating agents. In addition, good mixing and, if possible, foam formation should be achieved.
Diese Aufgaben werden durch eine Kapsel gelöst, welche die Merkmale im Anspruch 1 aufweist.These tasks are solved by a capsule which has the features in
Die Aufnahmeschulter ermöglicht es, dass unter Verwendung des gleichen Kapselkörpers je nach Einsatzzweck unterschiedliche Rückhalteböden eingesetzt werden können. Als besonders vorteilhaft hat sich dabei eine Rastverbindung erwiesen. Denkbar wäre aber auch ein Einpressen oder gar ein Einkleben oder Einschweissen. Der Kapselkörper kann als Spritzgussteil oder als Tiefziehteil hergestellt werden. Der Rückhalteboden hat die Aufgabe, die in der Regel pulverförmige Substanz zurückzuhalten, so dass die Sperrmembran nicht von der Substanz beaufschlagt wird. Der durch die Sperrmembran und den Rückhalteboden abgegrenzte substanzfreie Zwischenraum beinhaltet einen kleinen Gasvorrat von beispielsweise Luft oder Stickstoff, was die Schaumbildung erheblich verbessert.The receiving shoulder makes it possible for different retaining floors to be used using the same capsule body, depending on the intended purpose. A locking connection has proven to be particularly advantageous. Pressing in or even gluing or welding in would also be conceivable. The capsule body can be manufactured as an injection molded part or as a deep-drawn part. The retention base has the task of retaining the substance, which is usually powdery, so that the barrier membrane is not exposed to the substance. The substance-free space delimited by the barrier membrane and the retention base contains a small gas supply, for example air or nitrogen, which significantly improves foam formation.
Die Sperrmembran ist insbesondere ausschliesslich unter der Einwirkung des Innendrucks in der Kapsel zerreissbar oder aufplatzbar. Dies hat den Vorteil, dass keinerlei mechanische Mittel vorgesehen werden müssen, um die Auslauföffnung freizulegen. Je nach Wandstärke, Befestigung oder Abstützung der Sperrmembran lässt sich dabei der Öffnungsvorgang relativ präzise steuern.In particular, the barrier membrane can only be torn or burst under the influence of the internal pressure in the capsule. This has the advantage that no mechanical means need to be provided to expose the outlet opening. Depending on the wall thickness, fastening or support of the barrier membrane, the opening process can be controlled relatively precisely.
Der Rückhalteboden und die Sperrmembran können planparallel zueinander angeordnet sein. Dies ist jedoch nicht zwingend. So könnte insbesondere der Rückhalteboden auch konisch oder konvex ausgebildet sein.The retaining base and the barrier membrane can be arranged plane-parallel to one another. However, this is not mandatory. In particular, the retaining base could also be conical or convex.
Die Sperrmembran ist an ihrem Aussenrand auf einem umlaufenden Rand befestigt, der einstückig mit dem Boden der Kapsel ausgebildet ist und der innerhalb der Aufnahmeschulter verläuft. Auf diese Weise haben sowohl die Sperrmembran als auch der Rückhalteboden ihnen jeweils zugeordnete Befestigungslinien. Im Hinblick auf eine rationelle Fabrikation kann zuerst die Sperrmembran und anschliessend der Rückhalteboden eingesetzt werden.The barrier membrane is attached to its outer edge on a peripheral edge which is formed in one piece with the bottom of the capsule and which runs within the receiving shoulder. In this way, both the barrier membrane and the retaining floor have attachment lines assigned to them. With a view to efficient manufacturing, the barrier membrane can be inserted first and then the retaining floor.
Die Sperrmembran ist im Zentrum auf einem Stützkörper befestigt ist, der koaxial zur Längsmittelachse der Kapsel und insbesondere zur Auslauföffnung angeordnet ist. Dabei ist es von besonderer Bedeutung, dass die Sperrmembran nicht nur auf dem Stützkörper aufliegt, sondern fest mit diesem verbunden ist. Dadurch wird je nach Beschaffenheit der Sperrmembran das Reissen oder Aufplatzen begünstigt und zwar in einem Umfangsbereich um das Zentrum der Kapsel. Die Sperrmembran ist dabei zwischen dem umlaufenden Rand und dem Stützkörper vorteilhaft ohne Auflage oder Befestigung frei gespannt. In bestimmten Fällen wäre es jedoch ebenfalls denkbar, dass unterhalb der Sperrmembran Penetrationselemente am Boden der Kapsel angeordnet sind, welche bei einer Durchbiegung die Sperrmembran penetrieren.The barrier membrane is attached in the center to a support body which is arranged coaxially to the longitudinal central axis of the capsule and in particular to the outlet opening. It is particularly important that the barrier membrane not only rests on the support body, but is firmly connected to it. Depending on the nature of the barrier membrane, this promotes tearing or bursting, namely in a circumferential area around the center of the capsule. The barrier membrane is advantageously stretched freely between the peripheral edge and the support body without any support or fastening. In certain cases, however, it would also be conceivable for penetration elements to be arranged below the barrier membrane on the bottom of the capsule, which penetrate the barrier membrane when it is bent.
Je nach Volumen der Kapsel und nach der Beschaffenheit der Substanz kann die Distanz zwischen der Sperrmembran und dem Rückhalteboden stark variieren. Dabei hat sich eine Distanz von 0,1 bis 6 mm als besonders vorteilhaft erwiesen.Depending on the volume of the capsule and the nature of the substance, the distance between the barrier membrane and the retention base can vary greatly. A distance of 0.1 to 6 mm has proven to be particularly advantageous.
Auf der Unterseite des Rückhaltebodens können sternförmig verlaufende Verstärkungsrippen angeordnet sein. Denkbar sind aber auch Verstärkungsrippen auf der Oberseite des Rückhaltebodens oder auf beiden Seiten. Derartige Rippen verhindern, dass sich ein aus Kunststoff hergestellter Rückhalteboden unter der Einwirkung von Druck und Temperatur zu stark durchbiegt.Star-shaped reinforcing ribs can be arranged on the underside of the retaining base. However, reinforcing ribs on the top of the retaining floor or on both sides are also conceivable. Such ribs prevent a retention base made of plastic from bending too much under the influence of pressure and temperature.
Der Rückhalteboden kann als Siebboden mit einer Mehrzahl von Öffnungen ausgebildet sein. Die Grösse und Anzahl der Öffnungen richtet sich dabei nach der Korngrösse der zurück zu haltenden Substanz sowie nach der gewünschten Strömungsgeschwindigkeit.The retaining floor can be designed as a sieve floor with a plurality of openings. The size and number of openings depends on the grain size of the substance to be retained and the desired flow speed.
Der Rückhalteboden kann auch Bestandteil eines zylindrischen Aufnahmebechers für die Substanz sein. Dabei füllt die Substanz ersichtlicherweise nicht den gesamten Kapselkörper aus. Vielmehr verbleibt ein Hohlraum bzw. ein Ringhohlraum um den Aufnahmebecher. Dieser kann als Einströmraum für die Flüssigkeit genutzt werden oder er kann seinerseits eine zweite Substanz aufnehmen.The retention base can also be part of a cylindrical receiving cup for the substance. The substance obviously does not fill the entire capsule body. Rather, a cavity or an annular cavity remains around the receiving cup. This can be used as an inflow space for the liquid or it can in turn accommodate a second substance.
Der Aufnahmebecher kann sich im oberen, dem Deckel zugewandten Bereich mit einem Kragen an der Seitenwand der Kapsel abstützen. Dieser Kragen kann mit Öffnungen versehen sein, sodass auch Flüssigkeit in den Ringraum unterhalb des Kragens strömen kann. Der obere Rand des Aufnahmebechers erstreckt sich dabei über die Ansatzstelle des Kragens hinaus, sodass zwischen dem Kragen und dem oberen Rand ein nach oben offener Kanal gebildet wird. Zwischen dem oberen Rand und dem Deckel kann dabei ein Zwischenraum verbleiben, sodass sich die Substanz im Aufnahmebecher auch im Kanal über dem Kragen ausbreiten kann.The receiving cup can be supported in the upper area facing the lid with a collar on the side wall of the capsule. This collar can be provided with openings so that liquid can also flow into the annular space below the collar. The upper edge of the receiving cup extends beyond the attachment point of the collar, so that an upwardly open channel is formed between the collar and the upper edge. A space can remain between the upper edge and the lid so that the substance in the receiving cup can also spread into the channel above the collar.
Der Rückhalteboden kann aber auch geschlossen sein und lediglich an seinem Aussenumfang mit einer Mehrzahl von Schlitzen oder Nuten versehen sein. Diese Schlitze oder Nuten können beispielsweise in einer gegen den Boden oder gegen den Deckel der Kapsel gerichteten Schürze angeordnet sein. Die Schlitze oder Nuten begünstigen das Umströmen des geschlossenen Rückhaltebodens, wobei je nach Konstruktion starke Scherkräfte erzielt werden können. Ein derart geschlossener Rückhalteboden eignet sich beispielsweise für die Aufnahme von Milchpulver zur Bildung von Milchschaum.However, the retaining base can also be closed and only be provided with a plurality of slots or grooves on its outer circumference. These slots or grooves can be arranged, for example, in an apron directed towards the bottom or the lid of the capsule. The slots or grooves promote flow around the closed retaining base, whereby strong shear forces can be achieved depending on the design. Such a closed retention base is suitable, for example, for holding milk powder to form milk foam.
Die Sperrmembran kann aus einer Folie aus Aluminium oder aus einer Aluminiumlegierung bestehen. Unter dem in einer Getränkezubereitungsmaschine auftretenden Innendruck von bis zu 20 bar hat sich eine Wandstärke von 0,01 bis 0,4 mm als besonders vorteilhaft erwiesen. Selbstverständlich könnte die Sperrmembran auch aus einem Kunststoffmaterial oder aus einem Laminat bestehen. Die Sperrmembran kann auch als eigentliche Berstscheibe aus Kunststoffmaterial ausgebildet werden. In einem derartigen Fall beträgt die Wandstärke beispielsweise von 0,005 bis 0,4 mm.The barrier membrane can consist of a foil made of aluminum or an aluminum alloy. A wall thickness of 0.01 to 0.4 mm is particularly advantageous under the internal pressure of up to 20 bar that occurs in a beverage preparation machine proven. Of course, the barrier membrane could also consist of a plastic material or a laminate. The barrier membrane can also be designed as an actual rupture disk made of plastic material. In such a case, the wall thickness is, for example, from 0.005 to 0.4 mm.
Unabhängig von der Beschaffenheit der Sperrmembran kann es besonders vorteilhaft sein, wenn diese eine oder mehrere Sollbruchstellen aufweist. Auf diese Weise lassen sich sehr gezielt Öffnungen schaffen und bestimmte Strömungsverhältnisse herbeiführen.Regardless of the nature of the barrier membrane, it can be particularly advantageous if it has one or more predetermined breaking points. In this way, openings can be created in a very targeted manner and certain flow conditions can be achieved.
Eine besonders vorteilhafte Montage des Rückhaltebodens kann erreicht werden, wenn auf der dem Deckel zugewandten Seite ein Griffstück angeordnet ist. Dieses kann beispielsweise aus sternförmig angeordneten Rippen bestehen, mit denen zusätzlich noch eine Versteifung des Rückhaltebodens bewirkt wird.A particularly advantageous assembly of the retaining base can be achieved if a handle is arranged on the side facing the lid. This can, for example, consist of ribs arranged in a star shape, which additionally stiffen the retaining base.
Weitere Vorteile können erreicht werden, wenn die Sperrmembran im Zentrum auf einem Stützkörper befestigt ist, der über der Auslauföffnung angeordnet ist und an dessen Aussenumfang vorzugsweise schlitzförmige Öffnungen angeordnet sind, welche sich von der Auflageebene der Sperrmembran gegen den Boden erstrecken. Dadurch fliesst die Flüssigkeit nach dem Reissen der Sperrmembran konzentrisch gegen den Stützkörper nach unten in die Auslauföffnung. Die noch auf dem Stützkörper verbleibenden Abschnitte der Sperrmembran bilden gegen oben eine Begrenzung der Strömung.Further advantages can be achieved if the barrier membrane is attached in the center to a support body which is arranged above the outlet opening and on the outer circumference of which slot-shaped openings are preferably arranged, which extend from the support plane of the barrier membrane against the floor. As a result, after the barrier membrane has ruptured, the liquid flows concentrically against the support body downwards into the outlet opening. The sections of the barrier membrane that still remain on the support body form a limitation of the flow at the top.
Weiter kann der Stützkörper von einer mit Öffnungen versehenen Prallwand umgeben sein, wobei die Öffnungen der Prallwand radial versetzt zu den Öffnungen des Stützkörpers angeordnet sind. Mit dieser Anordnung wird eine turbulente Ausströmung der Flüssigkeit gegen die Auslauföffnung erzielt, wobei eine besonders gute Durchmischung erfolgt. Eine Schaumbildung wird dabei durch den im substanzfreien Zwischenraum vorhandenen Luftvorrat begünstigt. Besonders vorteilhaft ist die Sperrmembran auch fest mit dem oberen Rand der Prallwand verbunden, sodass die Ringkammer zwischen Stützkörper und Prallwand auf der Oberseite durch die Sperrmembran auch nach deren Einreissen begrenzt bleibt.Furthermore, the support body can be surrounded by a baffle wall provided with openings, the openings of the baffle wall being arranged radially offset from the openings of the support body. With this arrangement there is a turbulent outflow of the liquid achieved against the outlet opening, with particularly good mixing taking place. Foam formation is promoted by the air supply present in the substance-free space. Particularly advantageously, the barrier membrane is also firmly connected to the upper edge of the baffle wall, so that the annular chamber between the support body and the baffle wall remains delimited on the top by the barrier membrane even after it has been torn.
Die Erfindung betrifft auch ein System umfassend eine vorstehend beschriebene Kapsel sowie eine Getränkezubereitungsmaschine mit einer Aufnahmekammer für die Kapsel, sowie mit Mitteln zum Penetrieren des Deckels der Kapsel und zum Durchleiten einer Flüssigkeit unter Druck durch die Kapsel. Dabei spielt es keine Rolle, ob die Flüssigkeit ins Innere der Kapsel beispielsweise mit Hilfe einer Hohlnadel injiziert wird oder ob die Flüssigkeit durch eine Mehrzahl von Perforationsöffnungen gedrückt wird.The invention also relates to a system comprising a capsule described above and a beverage preparation machine with a receiving chamber for the capsule, as well as with means for penetrating the lid of the capsule and for passing a liquid under pressure through the capsule. It does not matter whether the liquid is injected into the interior of the capsule, for example using a hollow needle, or whether the liquid is pressed through a plurality of perforation openings.
Weitere Einzelmerkmale und Vorteile der Erfindung ergeben sich aus der nachstehenden Beschreibung von Ausführungsbeispielen und aus den Zeichnungen.Further individual features and advantages of the invention result from the following description of exemplary embodiments and from the drawings.
Es zeigen:
Figur 1- Eine Aussenansicht einer erfindungsgemässen Kapsel,
Figur 2- Ein Querschnitt durch die
Kapsel gemäss Figur 1 mit einem durch den Deckel verschlossenen Aufnahmebecher, Figur 3- Ein Querschnitt durch ein abgewandeltes Ausführungsbeispiel mit einem durch eine Filterfolie verschlossenen Aufnahmebecher,
Figur 4- Ein Querschnitt durch ein abgewandeltes Ausführungsbeispiel einer Kapsel mit einem integrierten Steigrohr,
Figur 5- Ein Querschnitt durch ein abgewandeltes Ausführungsbeispiel einer Kapsel mit einem einfachen Siebboden,
Figur 6- Ein Querschnitt durch ein abgewandeltes Ausführungsbeispiel einer Kapsel mit integriertem Rückhaltekäfig,
Figur 7- Eine Explosionszeichnung eines weiteren Ausführungsbeispiels einer Kapsel mit Aufnahmebecher und Berstscheibe,
Figur 8- Ein Querschnitt durch die zusammengebaute Kapsel gemäss
Figur 7 , Figur 9- Eine perspektivische Darstellung der Kapsel gemäss
Figur 8 im Teilschnitt, Figur 10- Ein Querschnitt durch ein abgewandeltes Ausführungsbeispiel der Kapsel gemäss
Figur 8 , Figur 11- Eine perspektivische Darstellung im Querschnitt durch eine Kapsel mit geschlossenem Rückhalteboden,
Figur 12- Eine perspektivische Teildarstellung des Rückhaltebodens in der Kapsel gemäss
Figur 11 , Figur 13- Die
Kapsel gemäss Figur 11 bei entferntem Rückhalteboden, Figur 14- Die
Kapsel gemäss Figur 13 mit entfernter Sperrmembran, Figur 15- Eine perspektivische Darstellung eines als Siebboden ausgebildeten Rückhaltebodens,
Figur 16- Eine perspektivische Darstellung im Querschnitt durch eine Kapsel mit einem alternativ ausgestalteten Aufnahmebecher,
Figur 17- Eine perspektivische Teildarstellung des Aufnahmebechers in der Kapsel gemäss
Figur 16 , Figur 18- Eine perspektivische Darstellung eines Kapselkörpers mit alternativ ausgestaltetem Stützkörper,
Figur 19- Ein stark vergrösserter Querschnitt durch den Stützkörper in der Kapsel gemäss
Figur 18 , Figur 20- Eine perspektivische Darstellung im Querschnitt durch eine Kapsel mit einem alternativ ausgestalteten Stützkörper,
Figur 21- Eine vergrösserte perspektivische Darstellung des Stützkörpers gemäss
Figur 20 .
- Figure 1
- An external view of a capsule according to the invention,
- Figure 2
- A cross section through the capsule according to
Figure 1 with a receiving cup closed by the lid, - Figure 3
- A cross section through a modified exemplary embodiment with a receiving cup closed by a filter film,
- Figure 4
- A cross section through a modified embodiment of a capsule with an integrated riser pipe,
- Figure 5
- A cross section through a modified embodiment of a capsule with a simple sieve bottom,
- Figure 6
- A cross section through a modified embodiment of a capsule with an integrated retention cage,
- Figure 7
- An exploded drawing of a further exemplary embodiment of a capsule with a receiving cup and rupture disk,
- Figure 8
- A cross section through the assembled capsule according to
Figure 7 , - Figure 9
- A perspective view of the capsule according to
Figure 8 in partial section, - Figure 10
- A cross section through a modified embodiment of the capsule according to
Figure 8 , - Figure 11
- A perspective view in cross section through a capsule with a closed retention base,
- Figure 12
- A partial perspective view of the retention floor in the capsule according to
Figure 11 , - Figure 13
- The capsule according to
Figure 11 with the retaining floor removed, - Figure 14
- The capsule according to
Figure 13 with barrier membrane removed, - Figure 15
- A perspective view of a retaining base designed as a sieve base,
- Figure 16
- A perspective view in cross section through a capsule with an alternatively designed receiving cup,
- Figure 17
- A partial perspective view of the receiving cup in the capsule according to
Figure 16 , - Figure 18
- A perspective view of a capsule body with an alternatively designed support body,
- Figure 19
- A greatly enlarged cross section through the support body in the capsule according to
Figure 18 , - Figure 20
- A perspective view in cross section through a capsule with an alternatively designed support body,
- Figure 21
- An enlarged perspective view of the support body according to
Figure 20 .
Wie in den
Am Boden 4 ist ausserdem eine kreisförmige Aufnahmeschulter 10 angeordnet, welche durch eine Vertiefung 25 im Boden gebildet wird. Von der Vertiefung aus erstreckt sich ein Rohrstutzen 23 nach unten, in dessen Querschnitt eine Prallplatte 26 gehalten ist. Der Rohrstutzen 23 mündet in die Auslauföffnung 8.A circular receiving
Der Kapselkörper 2 umschliesst insgesamt eine Kammer 6, welche eine Substanz 7 aufnehmen kann. Beim vorliegenden Ausführungsbeispiel ist diese Substanz innerhalb eines Aufnahmebechers 17 gehalten, der einstückig mit einem Rückhalteboden 11 ausgebildet ist. Dieser Rückhalteboden ist als Siebboden mit Sieböffnungen ausgestaltet. Unterhalb des Rückhaltebodens ist ein umlaufender Schnapprand 28 angeordnet, mit dessen Hilfe der ganze Aufnahmebecher in die Aufnahmeschulter 10 eingerastet ist. Der obere Rand des Aufnahmebechers ist umlaufend mit dem Deckel 5 verschweisst. Ausserdem sind am oberen Rand umlaufend vertikale Schlitze 27 vorgesehen, durch welche eine in die äussere Ringkammer eingespritzte Flüssigkeit ins Innere des Aufnahmebechers eindringen kann.The
Auf dem Boden der Vertiefung 25 und über der Auslauföffnung 8 ist eine Sperrmembran 9 in der Form einer Folie befestigt. Auf diese Weise wird zwischen der Sperrmembran 9 und dem Rückhalteboden 11 ein substanzfreier Zwischenraum 12 gebildet. Eine auf der Eintrittsseite in die Kammer 6 eingebrachte Flüssigkeit durchströmt die Substanz 7 und den gelochten Rückhalteboden 11 und bewirkt anschliessend ein Aufreissen der Sperrmembran 9.A
Das Ausführungsbeispiel gemäss
Beim Ausführungsbeispiel gemäss
Beim Ausführungsbeispiel gemäss
Beim Ausführungsbeispiel gemäss
Beim Ausführungsbeispiel gemäss den
Das Ausführungsbeispiel gemäss
Das Ausführungsbeispiel gemäss den
Der umlaufende Rand 13 ist innerhalb der Aufnahmeschulter 10 angeordnet und dieser gegenüber etwas abgesenkt. Der Rückhalteboden 11 ist hier ohne Siebstruktur völlig geschlossen ausgebildet und am Aussenumfang mit einer umlaufenden Schürze 18 versehen. In dieser sind in regelmässigen Abständen vertikale Nuten 19 angeordnet, die sich bis in den Übergangsbereich zwischen Schürze und Rückhalteboden erstrecken. Auf der dem Deckel zugewandten Seite des Rückhaltebodens ist ausserdem ein Griffstück 21 angeordnet, welches die Montage erleichtert und gleichzeitig eine Versteifung bewirkt.The
Zwischen der Aufnahmeschulter 10 und dem Rand 13 ist eine umlaufende Zwischenrippe 33 angeordnet, deren obere Stirnseite an einer korrespondierende Rippe am Rückhalteboden 11 anliegt.A circumferential
In der nur noch den Kapselkörper 2 darstellenden
Eine in die Kammer 6 eingebrachte Flüssigkeit dringt zunächst durch die Nuten 19 bis in den Bereich der Rastverbindung an der Aufnahmeschulter 10 und durchströmt die Schärspaltlinie. Danach wird die Stossverbindung an der Stirnseite der Zwischenrippe 33 aufgedrückt und die mit der Substanz vermischte Flüssigkeit dringt in den substanzfreien Zwischenraum 12 zwischen der Sperrmembran 9 und dem Rückhalteboden 11. Danach reisst die Sperrmembran 9 und die Mischung strömt aus der Auslauföffnung 8. Diese Anordnung eignet sich für Substanzen, welche mit der durchströmenden Flüssigkeit eine Lösung oder eine Mischung bilden, wie z.B. Milchpulver oder Schokoladepulver. Die
Beim Ausführungsbeispiel gemäss den
Eine in den Bereich über dem Kragen 38 eingebrachte Flüssigkeit dringt einerseits durch die Öffnungen 39 in die umlaufende Ringkammer ausserhalb des Aufnahmebechers 17 und andererseits ins Innere des Aufnahmebechers 17. Der Kragen hat dabei die Funktion einer Strömungsbremse. Anschliessend dringt die Flüssigkeit durch die Substanz im Aufnahmebecher und durch den perforierten Rückhalteboden 11 in den substanzfreien Zwischenraum 12 zwischen der Sperrmembran 9 und dem Rückhalteboden 11.A liquid introduced into the area above the
Der Kapselkörper 2 gemäss
Die Kapsel gemäss den
Der Stützkörper 14 ist bei diesem Ausführungsbeispiel ähnlich wie beim Ausführungsbeispiel gemäss den
Aus Gründen der besseren Übersichtlichkeit ist die Sperrmembran 9 in
Die Sperrmembran 9 ist sowohl auf der Oberfläche des Stützkörpers 14, als auch auf dem oberen Rand der Prallwand 42 fixiert, beispielsweise aufgeschweisst oder aufgesiegelt. Am Aussenumfang ist die Sperrmembran 9 mit der Oberfläche des umlaufenden Randes 13 verbunden.The
Claims (15)
- Capsule (1) comprising a preferably rotationally symmetrical capsule body (2) with a side wall (3) and with a base (4) formed integrally therewith, and a lid (5) covering the capsule body to form at least one chamber (6) which contains a substance (7) for the preparation of a liquid foodstuff, wherein, for the passage of a liquid through the chamber, the lid forms an inlet side and the base forms an outlet side with at least one outlet opening (8), and wherein the side wall (3) or the base (4) has an in particular circular receiving shoulder (10) on which a retaining base (11) retaining the substance (7) is held, and wherein between the retaining base (11) and the outlet opening (8) and at a distance from the retaining base (11) is arranged a barrier membrane (9) which can be ruptured under internal pressure in the capsule, wherein a substance-free intermediate space (12) remains between the retaining base (11) and the barrier membrane (9), characterised in that the retaining base (11) is latched onto the receiving shoulder (10) and that the liquid can flow through or around it, wherein the barrier membrane (9) is fastened at its outer edge to a peripheral edge (13) which is formed integrally with the base (4) of the capsule and which extends inside the receiving shoulder (10), wherein the barrier membrane (9) is fastened in the centre to a supporting body (14) which is arranged coaxially to the outlet opening (8).
- Capsule according to claim 1, characterised in that the retaining base (11) and the barrier membrane (9) are arranged plane-parallel to one another.
- Capsule according to one of claims 1 or 2, characterised in that the barrier membrane (9) is freely tensioned between the circumferential edge (13) and the supporting body (14) without support or fastening.
- Capsule according to one of claims 1 to 3, characterised in that the distance between the barrier membrane (9) and the retaining base (11) is at least 0.1 to 6 mm.
- Capsule according to one of claims 1 to 4, characterised in that reinforcing ribs (15), preferably extending in a star shape, are arranged on the underside of the retaining base (11) .
- Capsule according to one of claims 1 to 5, characterised in that the retaining base (11) is a sieve base with a plurality of openings (16).
- Capsule according to one of claims 1 to 6, characterised in that the retention base (11) is part of a cylindrical receiving cup (17) for the substance (7).
- Capsule according to one of claims 1 to 5, characterised in that the retaining base (11) is closed and is provided with a plurality of slots or grooves on its outer circumference.
- Capsule according to one of claims 1 to 8, characterised in that the barrier membrane (9) is a foil made of aluminium or of an aluminium alloy and in that it has a wall thickness of 0.01 to 0.4 mm.
- Capsule according to one of claims 1 to 8, characterised in that the barrier membrane (9) is made of plastic material and that it has a wall thickness of 0.005 to 0.4 mm.
- Capsule according to claim 9 or 10, characterised in that the barrier membrane (9) has one or more predetermined breaking points (20).
- Capsule according to one of claims 1 to 11, characterised in that a handle (21) is arranged on the side of the retention base (11) facing the lid.
- Capsule according to one of claims 1 to 12, characterised in that the barrier membrane (9) is fastened in the centre on a supporting body (14) which is arranged above the outlet opening (8) and on the outer circumference of which are arranged preferably slot-shaped openings (40) which extend from the supporting plane of the barrier membrane towards the base.
- Capsule according to claim 13, characterised in that the supporting body (14) is surrounded by a baffle wall (42) provided with openings (43), wherein the openings of the baffle wall are arranged radially offset to the openings (40) of the supporting body (14) and wherein preferably the barrier membrane (9) is fastened on the upper edge of the baffle wall.
- A system comprising a capsule according to any one of claims 1 to 14 and a beverage preparation machine with a receiving chamber for the capsule, and with means for penetrating the lid of the capsule and for passing a pressurised liquid through the capsule.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00244/14A CH709295A1 (en) | 2014-02-21 | 2014-02-21 | Capsule with a preferably rotationally symmetrical capsule body. |
CH00245/14A CH709296B1 (en) | 2014-02-21 | 2014-02-21 | Capsule with a preferably rotationally symmetrical capsule body. |
CH000642/2014A CH709570B1 (en) | 2014-04-29 | 2014-04-29 | Capsule with a preferably rotationally symmetrical capsule body. |
CH01046/14A CH709861A1 (en) | 2014-07-09 | 2014-07-09 | Capsule comprising a preferably rotationally symmetrical capsule body. |
CH01578/14A CH709273A2 (en) | 2014-02-21 | 2014-10-15 | Capsule comprising a preferably rotationally symmetrical capsule body. |
PCT/EP2015/053302 WO2015124558A1 (en) | 2014-02-21 | 2015-02-17 | Capsule comprising a preferably rotationally symmetrical capsule body |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3107833A1 EP3107833A1 (en) | 2016-12-28 |
EP3107833C0 EP3107833C0 (en) | 2024-03-27 |
EP3107833B1 true EP3107833B1 (en) | 2024-03-27 |
Family
ID=52473919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15704800.0A Active EP3107833B1 (en) | 2014-02-21 | 2015-02-17 | Capsule comprising a preferably rotationally symmetrical capsule body |
Country Status (5)
Country | Link |
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EP (1) | EP3107833B1 (en) |
CN (1) | CN106029526A (en) |
AU (1) | AU2015220937A1 (en) |
CH (1) | CH709273A2 (en) |
WO (1) | WO2015124558A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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ITUB20153624A1 (en) * | 2015-09-15 | 2017-03-15 | Medys S R L | DISPOSABLE CAPSULE FOR BEVERAGE DELIVERY MACHINES IN THE FORM OF INFUSED |
ITUB20156879A1 (en) * | 2015-12-07 | 2017-06-07 | Lavazza Luigi Spa | CARTRIDGE FOR THE PREPARATION OF A LIQUID PRODUCT AND ITS ASSORTMENT |
ES2749104T3 (en) | 2015-12-16 | 2020-03-19 | Imper Spa | Single-use capsule for machines for dispensing infusions |
CH712563A1 (en) * | 2016-06-03 | 2017-12-15 | Delica Ag | Capsule for making a drink. |
IT201600094824A1 (en) | 2016-09-21 | 2018-03-21 | Imper Spa | DISPOSABLE CAPSULE FOR BEVERAGE DELIVERY MACHINES IN THE FORM OF INFUSED |
IT201700001206A1 (en) * | 2017-01-05 | 2018-07-05 | Gian Luca Ruffa | CAPS FOR THE PREPARATION OF A LIQUID FOOD PRODUCT THROUGH A PREPARATION MACHINE |
DE102017000433A1 (en) * | 2017-01-19 | 2018-07-19 | Georg Menshen Gmbh & Co. Kg | Beverage capsule for making a drink |
CN108338689B (en) * | 2017-01-22 | 2021-04-20 | 广东美的生活电器制造有限公司 | Beverage capsule |
CN106697614A (en) * | 2017-02-07 | 2017-05-24 | 王亚辉 | Capsule used for extracting liquid |
IT201700043013A1 (en) | 2017-04-19 | 2018-10-19 | Bisio Progetti Spa | CAPS FOR THE PREPARATION OF INFUSION OR SOLUBLE BEVERAGES IN LOW PRESSURE EXTRACTION SYSTEMS |
CN109588990B (en) * | 2017-09-30 | 2021-08-10 | 广东美的生活电器制造有限公司 | Beverage capsule |
DE102018002102A1 (en) * | 2018-03-15 | 2019-09-19 | Georg Menshen Gmbh & Co. Kg | Portion capsule with weak spots and thin spots in the capsule bottom |
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ES2398276A1 (en) * | 2012-08-28 | 2013-03-15 | Unión Tostadora, S.A. | Capsule for producing a beverage |
ES2398278A1 (en) * | 2012-08-28 | 2013-03-15 | Unión Tostadora, S.A. | Capsule for a beverage maker |
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SI1555218T1 (en) * | 2004-02-11 | 2006-12-31 | I T A Ca S R L | Cartridge for coffee |
CA2560841C (en) * | 2004-03-26 | 2014-06-03 | Illycaffe' S.P.A. | Integrated cartridge for extracting a beverage from a particulate substance |
EP1580143B1 (en) * | 2004-03-26 | 2007-07-11 | ILLYCAFFE' S.p.A. | Integrated cartridge for extracting a beverage from a particulate substance |
DE602006011328D1 (en) * | 2006-06-06 | 2010-02-04 | Nestec Sa | Capsule with reduced dripping |
ITMI20061503A1 (en) * | 2006-07-28 | 2008-01-29 | Illycaffe Spa | PERFECTIONS OF CAPSULES CONTAINING A POWDER SUBSTANCE FROM WHICH A DRINK IS TAKEN, PREFERIBLY ESPRESSO COFFEE |
BRPI0908972A2 (en) * | 2008-03-18 | 2015-07-28 | Nestec Sa | Cartridge for preparing a liquid comprising a pierceable dispensing wall |
PL2236437T3 (en) * | 2009-03-31 | 2012-08-31 | Nestec Sa | Capsule with filter for preparing a liquid nutritional or food composition and related beverage production system |
EP2444339A1 (en) * | 2010-10-25 | 2012-04-25 | Nestec S.A. | A capsule for preparation of a beverage |
-
2014
- 2014-10-15 CH CH01578/14A patent/CH709273A2/en unknown
-
2015
- 2015-02-17 WO PCT/EP2015/053302 patent/WO2015124558A1/en active Application Filing
- 2015-02-17 AU AU2015220937A patent/AU2015220937A1/en not_active Abandoned
- 2015-02-17 CN CN201580009161.XA patent/CN106029526A/en active Pending
- 2015-02-17 EP EP15704800.0A patent/EP3107833B1/en active Active
Patent Citations (2)
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ES2398276A1 (en) * | 2012-08-28 | 2013-03-15 | Unión Tostadora, S.A. | Capsule for producing a beverage |
ES2398278A1 (en) * | 2012-08-28 | 2013-03-15 | Unión Tostadora, S.A. | Capsule for a beverage maker |
Also Published As
Publication number | Publication date |
---|---|
CH709273A2 (en) | 2015-08-28 |
CN106029526A (en) | 2016-10-12 |
AU2015220937A1 (en) | 2016-09-01 |
WO2015124558A1 (en) | 2015-08-27 |
EP3107833C0 (en) | 2024-03-27 |
EP3107833A1 (en) | 2016-12-28 |
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