EP3781498A1 - Portionenkapsel - Google Patents
PortionenkapselInfo
- Publication number
- EP3781498A1 EP3781498A1 EP19719251.1A EP19719251A EP3781498A1 EP 3781498 A1 EP3781498 A1 EP 3781498A1 EP 19719251 A EP19719251 A EP 19719251A EP 3781498 A1 EP3781498 A1 EP 3781498A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter element
- capsule
- filter
- struts
- filter plate
- 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.)
- Withdrawn
Links
- 239000002775 capsule Substances 0.000 title claims abstract description 77
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000000605 extraction Methods 0.000 claims description 29
- 230000007423 decrease Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 235000013361 beverage Nutrition 0.000 description 8
- 235000013353 coffee beverage Nutrition 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 235000013616 tea Nutrition 0.000 description 3
- 241001122767 Theaceae Species 0.000 description 2
- 238000013124 brewing process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 210000002425 internal capsule Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000015114 espresso Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- B65D85/8061—Filters
Definitions
- the invention relates to the field of systems for preparing beverages by means of liquid introduced into a beverage capsule. More particularly, it relates to a portion capsule containing a soluble food substance from which a beverage or beverage ingredient can be prepared by injecting water.
- the so-called coffee capsule systems they are also available in variants for the preparation of tea
- hot water is usually introduced under pressure into a capsule to prepare by extraction a coffee or tea beverage.
- the capsule is often pierced on one side (injection side).
- injection side For discharging the brewed beverage, generally on the other side of the capsule (the extraction side), various possibilities are known.
- capsules that are already open, so that no capsule wall / membrane has to be pierced or torn to dissipate the drink.
- a filter element is arranged in the interior of the capsule, which separates an extraction material region from a collection region and which is suitable liquid-permeable, for example, by having a plurality of filter openings.
- portion capsules with such filter elements can be found, for example, in EP 1 344 722 and in WO 2010/085824.
- the latter publication shows the filter element with supports which extend radially from an outer frame towards the center and thereby become thinner toward the center. These are intended to reinforce the filter element.
- Such a reinforcement may be indicated, in particular with regard to the preparation of brewed beverages under pressure, as is the case, for example, with espresso or other coffee with so-called "crema”.
- the capsule internal pressure rests to a large extent on the filter element, which therefore may also be exposed to mechanical deformation.
- the filter element should be mechanically stable and inexpensive and easy to manufacture.
- a filter element for a portion capsule is provided. This can be inserted into a, for example, cup-shaped base element, which defines an outer capsule wall together with a capsule lid attached to the base element after insertion of the filter element.
- the filter element is designed such that it divides the capsule interior between an extraction material region and a collection region, which is located between the Filter element and the outer capsule wall is formed.
- the filter element forms a filter plate and a two-dimensional framework of extending along the filter plate at an angle meeting struts.
- This inventive approach is based on the finding that a two-dimensional framework generally brings more stability than a system of only radially outwardly inwardly extending supports. This may be due to the fact that under real conditions, the capsule internal pressure is not strictly constant in time and place, and therefore also bending vibrations of the filter plate may arise. A two-dimensional framework can absorb such comparatively better. However, the invention does not depend on any particular explanation for this finding.
- the struts may have a radially-outwardly decreasing cross-section (i.e., a decreasing cross-sectional area).
- Such a decrease in the cross-section of the struts may be a decrease in the extent perpendicular to the filter plate plane.
- the decrease of the cross section may be continuous to the outside.
- the cross section in function of the radial position is also, for example, partially constant; on the average, however, the cross-section will be smaller further outward with respect to a center of the filter plate than further inside.
- the scaffolding of the struts is completely outwards, i. that the struts do not reach all the way to the outer edge of the filter element.
- This preferred Ausrrittungsform with outwardly decreasing cross-section is based on the finding that when a pressure in the capsule interior the concern Deformation is strongest in a central region of the filter element. In addition, generally less material is required for geometrical reasons when the struts have a larger inside cross-section than outside, compared to the inverted approach.
- the filter element has a central element.
- This can, for example, form a projection towards the interior of the capsule (towards the area of the extraction material); such a projection may be substantially conical.
- the framework of the struts then preferably extends to the central element, i. the innermost struts are connected to the central element to stabilize this.
- the central element can, for example, define a free space for an extraction-side piercing mandrel.
- a central element, up to which the framework of the struts extends, may in particular be designed as a protuberance to the side on which the struts are arranged (that is to say, for example, toward the interior of the capsule).
- the central element is formed in this embodiment by a protuberance, resulting to the other side (ie, for example, the collection area) out a cavity-like extension.
- a protuberance or dome-like configuration of the central element is particularly favorable in terms of the relationship between mechanical stability on the one hand and material consumption on the other.
- the framework of the struts can form a plurality of branches, in particular on a path formed by the struts, from the inside to the outside, so that struts arranged at least in a central region are respectively stabilized at both ends towards the sides.
- the struts forming the framework can thus be branched out at least to another location (except in the middle, where they meet, for example, the central element), ie they are different from beam-shaped struts extending from the center to the edge additionally stabilized by the branches.
- the framework of the struts may in particular form a honeycomb structure.
- the ratio between einskydem material and stability is particularly favorable.
- the filter plate may be provided in a conventional manner with filter openings which are regularly or irregularly distributed over the filter plate and allow passage of the liquid.
- the size of the filter openings may be such that a passage of extraction material is prevented. It is also not excluded that the filter openings are spanned by an example. Web-like filter material to prevent the passage of extraction material through the filter openings.
- the struts may be arranged in particular on the side of the filter element to the capsule interior, i. towards the extraction area.
- the filter element On the back side, the filter element can have a plurality of spacers which help to prevent the filter plate from being pressed against the outer capsule wall under a large internal capsule pressure.
- the filter element can be made cup-like in a manner known per se by having a peripheral side wall adjoining the filter plate on the outside, in particular on the side of the extraction material, so that a filter cup volume forms part of the area of the extraction material.
- a circumferential side wall may cause a radial form outwardly projecting peripheral flange, which can serve the attachment of the filter element in a capsule base element (eg capsule cup).
- the filter element as a whole is approximately disk-shaped, without circumferential side wall.
- a filter element is suitable, for example, for being fastened to a shoulder of the capsule base element (for example a capsule cup), for example by welding or another material connection.
- a disk-shaped filter element can also be accommodated in a form-fitting manner - for example by clicking into a peripheral groove of the capsule base element - and / or non-positively in the capsule.
- the invention also relates to a portion capsule with such a filter element.
- the filter element is disposed within an outer capsule wall of the portion capsule. Such may be formed by a cup-like base element and an attached lid, for example.
- the base member generally defines a capsule bottom and a capsule sidewall.
- the filter element is located between the extraction material region filled with an extraction material, in particular coffee powder, and the capsule bottom or between the extraction material region and the capsule cover.
- the filter element can be fastened to the base element or possibly to the cover, or it can also merely be inserted into the base element and, for example, be stabilized by the material to be extracted relative to the base element.
- a possible attachment of the filter element to the base element or cover can be positive, non-positive and / or cohesive. Fasteners of filter elements in a capsule cup are known per se, and the present invention is independent of the way the filter element is mounted.
- Fig. 1 is a schematic sectional view of a portion capsule with the filter element
- FIG. 2 shows a view of a filter element from the extraction material side
- FIG. 3 shows a view of the filter element shown reduced in size from the opposite side (collecting area side);
- FIG. 4 is a top view of the filter element of FIGS. 2 and 3;
- Fig. 5 is a sectional view of the filter element taken along the plane Y-Y in Fig. 4;
- Fig. 6 is a sectional view of the filter element taken along the plane VI-VI in Fig. 4;
- FIG. 7 shows a view of an alternative filter element from the extraction material side.
- FIGS. 2, 3, 7 and 4-6 different scales were used in each case.
- like reference characters designate like or analogous elements.
- the capsule 1 according to FIG. 1 has a base element in the form of a cup 11 (with axis 20) and a lid 12 fastened thereto along a circumferential flange 13, which together form an outer capsule wall and define a capsule interior.
- the cup 11 forms as known per se a slightly curved capsule bottom 14 and a circumferential side wall 15th
- Cup and lid can be made of plastic in a conventional manner; However, on capsules made of other materials, such as aluminum, the invention is applicable.
- the attachment of the lid on the cup has also been made in a known manner, for example. By ultrasonic welding ssen or possibly by gluing.
- the cup filter element 2 In the capsule interior, an inserted into the cup filter element 2 is present, the properties of which will be described in more detail below.
- the cup is attached to a shoulder 16 formed by the circumferential side wall 15, for example, by welding, i. through a cohesive connection. Other attachment methods, including positive and non-positive connections, would also be possible.
- the filter element separates an extraction material region 5, which will be filled with extraction material, from a collection region 6.
- the filter element 2 is arranged in the vicinity of the capsule bottom 14, and the collection region 6 is located on the side of the capsule base.
- the injection of water into the capsule for the brewing process then takes place generally from the lid side.
- the reverse arrangement would be conceivable in which the water is injected from the bottom and the filter element is arranged on the cover side.
- FIG. 1 schematically and in dashed lines also represents an optional distribution element 3, which is likewise inserted into the capsule and which delimits the extraction material region 5 towards the injection side and a distribution region between itself and the capsule cover 12 (or in the reverse arrangement between it and the capsule bottom) 7 defined.
- Both the filter element 2 and optionally the distribution element 3 is / are suitably liquid-permeable, in such a way that the extraction material can not pass.
- FIGS. 2-6 show an embodiment of the filter element.
- the filter element 2 forms a filter plate 21 with a plurality of filter openings 22 extending therethrough, which in the illustrated embodiment may be slightly widening in the direction away from the extraction material region (towards the collection region side) in order to prevent blockages due to small coffee grains.
- a plurality of spacers 29 are present on the collecting area side, which, in addition to the reinforcing scaffold described below, prevent the filter plate 21 from being subjected to a large internal capsule pressure Capsule bottom 14 is pressed, thus preventing flow in radial directions in the collection area.
- the filter element is designed as a whole cup-like, with an outer side adjacent to the filter plate 21 circumferential side wall 23 which defines a Filterbechervolumen together with the filter plate, which is part of the Auskomsgut Anlagens.
- a flange-like outwardly projecting peripheral edge 24 is formed, which serves in the illustrated embodiment, the attachment of the filter element 2 in the capsule cup 11.
- a central element 25 is formed, which has the shape of an inwardly, i. projecting towards the extraction material region.
- This protrusion forming the central member 25 is substantially conical with a plurality of protrusions.
- the filter element On the extraction side of the filter plate 21, the filter element has a framework of struts 26 having a hexagonal structure, i. form a honeycomb structure.
- struts 26 having a hexagonal structure, i. form a honeycomb structure.
- honeycomb structures and other stable two-dimensional framework structures Another property of honeycomb structures and other stable two-dimensional framework structures is that there is always a plurality of branches on any path along the struts from radially outward to radially inward, ie there are no struts in the framework, those from the outside quite inside without passing through a multitude of branches 27 would be supported even after lateral directions.
- any path in the circumferential direction ie, it is not possible to find a path of struts around the entire circumference in the framework on which the struts do not branch at several locations.
- Radial-inside (directional information such as “radial” or “in the circumferential direction” or “central” refer in this text, unless otherwise stated, always on the axis 20 of the capsule) connects the framework to the central element.
- the strength of the struts decreases radially outward. This is realized by gradually reducing the extent of the struts in the dimension perpendicular to the filter plate from radially outward while the width, i. the extent perpendicular to the direction of the respective strut and parallel to the filter plate is constant.
- the strength of the struts goes in the illustrated embodiment radially on the outside to zero, which is particularly well seen in Figures 5 and 6. However, it would also be possible for the thickness to be radially inward not completely zero, and that the struts extend as far as the circumferential side wall 23.
- FIG. 7 shows an alternative embodiment of the filter element 2, which differs from that of FIGS. 2-6 in particular in that it does not have a circumferential side wall and is therefore not cup-shaped, but is overall disc-shaped.
- the edge region 28 of the filter element adjoins the outer side of the filter plate 21 with the framework. It can on the outside (ie the side towards the collecting area, in Fig. 7 of the bottom and therefore not visible) have a circumferential rib, which serves as an energy directors in an ultrasonic welding process.
- the filter element can thus be attached to one of the capsule Base formed shoulder are welded, which, for example, something more prominent than the shoulder 16 schematically illustrated in FIG.
- the central element, the framework of the struts 26 and the filter plate 21 in total are in the embodiment of Fig. 7 functionally identical to the embodiment described above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18168588.4A EP3556685A1 (de) | 2018-04-20 | 2018-04-20 | Portionenkapsel |
PCT/EP2019/060145 WO2019202103A1 (de) | 2018-04-20 | 2019-04-18 | Portionenkapsel |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3781498A1 true EP3781498A1 (de) | 2021-02-24 |
Family
ID=62046684
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18168588.4A Withdrawn EP3556685A1 (de) | 2018-04-20 | 2018-04-20 | Portionenkapsel |
EP19719251.1A Withdrawn EP3781498A1 (de) | 2018-04-20 | 2019-04-18 | Portionenkapsel |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18168588.4A Withdrawn EP3556685A1 (de) | 2018-04-20 | 2018-04-20 | Portionenkapsel |
Country Status (10)
Country | Link |
---|---|
US (1) | US20210171277A1 (de) |
EP (2) | EP3556685A1 (de) |
JP (1) | JP2021521926A (de) |
KR (1) | KR20200142000A (de) |
CN (1) | CN112004759A (de) |
AU (1) | AU2019254642A1 (de) |
BR (1) | BR112020021348A2 (de) |
CA (1) | CA3095365A1 (de) |
WO (1) | WO2019202103A1 (de) |
ZA (1) | ZA202006552B (de) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10211327B4 (de) * | 2002-03-14 | 2015-09-24 | Caffitaly System S.P.A. | Portionenkapsel mit einer partikelförmigen mittels Wasser extrahierbaren Substanz zur Herstellung eines Getränks |
NL1021325C2 (nl) * | 2002-08-23 | 2004-02-24 | Sara Lee De Nv | Rigide pad voor het bereiden van een voor consumptie geschikte drank. |
US6948420B2 (en) * | 2003-07-22 | 2005-09-27 | The Coca-Cola Company | Coffee and tea pod |
DE102005058336A1 (de) | 2005-12-02 | 2007-06-06 | Tchibo Gmbh | Portionskapsel |
US8322271B2 (en) * | 2007-07-02 | 2012-12-04 | Brewl Technologies, Inc. | Infusible material capsule for brewing a beverage |
AT507834B1 (de) | 2009-01-29 | 2011-03-15 | System Gmbh K | Portionskapsel |
CN202287818U (zh) * | 2011-10-18 | 2012-07-04 | 劦启企业股份有限公司 | 萃取饮料用的微粒食材过滤容器改良构造 |
WO2014110355A2 (en) * | 2013-01-11 | 2014-07-17 | Dlcr Acquisition, Llc | A beverage cartridge |
TWI586302B (zh) * | 2013-04-01 | 2017-06-11 | 賈碩頎 | 飲料過濾匣 |
ES2423832B2 (es) * | 2013-05-17 | 2014-05-19 | Unión Tostadora, S.A. | Estructura de cápsula de preparación de bebida |
CN105326392B (zh) * | 2015-11-03 | 2018-06-15 | 宁波路玛电器有限公司 | 咖啡机酿造腔室内的滤板结构 |
-
2018
- 2018-04-20 EP EP18168588.4A patent/EP3556685A1/de not_active Withdrawn
-
2019
- 2019-04-18 JP JP2020557932A patent/JP2021521926A/ja active Pending
- 2019-04-18 CN CN201980026710.2A patent/CN112004759A/zh active Pending
- 2019-04-18 CA CA3095365A patent/CA3095365A1/en not_active Abandoned
- 2019-04-18 EP EP19719251.1A patent/EP3781498A1/de not_active Withdrawn
- 2019-04-18 AU AU2019254642A patent/AU2019254642A1/en not_active Abandoned
- 2019-04-18 US US17/048,266 patent/US20210171277A1/en not_active Abandoned
- 2019-04-18 BR BR112020021348-9A patent/BR112020021348A2/pt not_active Application Discontinuation
- 2019-04-18 KR KR1020207028765A patent/KR20200142000A/ko not_active Application Discontinuation
- 2019-04-18 WO PCT/EP2019/060145 patent/WO2019202103A1/de active Application Filing
-
2020
- 2020-10-21 ZA ZA2020/06552A patent/ZA202006552B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CA3095365A1 (en) | 2019-10-24 |
ZA202006552B (en) | 2022-07-27 |
WO2019202103A1 (de) | 2019-10-24 |
CN112004759A (zh) | 2020-11-27 |
BR112020021348A2 (pt) | 2021-01-19 |
JP2021521926A (ja) | 2021-08-30 |
AU2019254642A1 (en) | 2020-11-26 |
US20210171277A1 (en) | 2021-06-10 |
EP3556685A1 (de) | 2019-10-23 |
KR20200142000A (ko) | 2020-12-21 |
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