EP3118140B1 - Capsule de preparation d'un produit alimentaire liquide - Google Patents

Capsule de preparation d'un produit alimentaire liquide Download PDF

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Publication number
EP3118140B1
EP3118140B1 EP16175534.3A EP16175534A EP3118140B1 EP 3118140 B1 EP3118140 B1 EP 3118140B1 EP 16175534 A EP16175534 A EP 16175534A EP 3118140 B1 EP3118140 B1 EP 3118140B1
Authority
EP
European Patent Office
Prior art keywords
capsule
filter element
support
base
outlet opening
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.)
Active
Application number
EP16175534.3A
Other languages
German (de)
English (en)
Other versions
EP3118140A1 (fr
Inventor
Raphael Gugerli
Olivia Kurtz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delica AG
Original Assignee
Delica AG
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Filing date
Publication date
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Publication of EP3118140A1 publication Critical patent/EP3118140A1/fr
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Publication of EP3118140B1 publication Critical patent/EP3118140B1/fr
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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
    • B65D85/8052—Details of the outlet
    • 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 present invention relates to a capsule with a preferably rotationally symmetrical capsule body for the preparation of a liquid food according to the preamble of claim 1.
  • Capsules of this type are used in particular for the preparation of coffee or coffee-type drinks.
  • the capsule forms the portion packaging for the transport and storage of a starting substance contained therein for the production of a finished beverage product.
  • capsules containing ground coffee powder are widely used to make coffee drinks.
  • capsules containing dried milk powder are known for the production of milk or milk foam.
  • a central role in the preparation of a finished beverage product in a corresponding beverage preparation machine plays the design of the capsule.
  • Such capsules for preparing a liquid food are known in many embodiments. So shows, for example EP 2 891 615 A1 a capsule with a rotationally symmetrical capsule body having a circumferential side wall and a bottom, wherein in this capsule body, a substance is accommodated in a chamber which is closed by a lid. In order to prevent the escape of the substance from the chamber, a filter element is inserted above the bottom, which retains unresolved substance particles and restricts the flow through the capsule.
  • a disadvantage of this capsule is in particular that the production of the capsule is complicated and correspondingly expensive, since several items are used. Furthermore, the capsule from the prior art has the disadvantage that after the actual extraction process still a large amount of Liquid remains in the capsule and the capsule can drip accordingly.
  • a capsule should be made available, which after the preparation of the liquid food only reduced or no longer drips.
  • a capsule according to the invention comprises a preferably rotationally symmetrical capsule body with at least one side wall and a bottom with an outlet opening.
  • the capsule further comprises a lid covering the capsule body and a filter element for forming at least one chamber containing at least one substance for preparing a liquid food.
  • the filter element separates the chamber from the outlet opening.
  • the lid form an inlet side and the bottom with the outlet side opening an outlet side.
  • the invention is characterized in that the bottom has a support structure with at least one preferably central support for the filter element.
  • the bottom has a support structure
  • a very simple construction of the capsule can be realized with a filter element, for example in the form of a filter paper.
  • the support structure can be integrally integrated in the bottom of the capsule. Alternatively, however, it is also conceivable that a separate support structure is inserted in the bottom of the capsule.
  • the filter element is not only attached to the edge of the capsule body, but also supported by means of the support structure can be. Accordingly, the filter element can be realized very thin and still withstand the high pressure required for the extraction of the liquid food.
  • the support structure also acts as a flow-through chicane and thus as a drip brake as soon as the chamber is depressurized. An influencing of the adhesion forces between the liquid and the support structure is possible by the design.
  • the support structure may comprise a plurality of support elements, which are arranged in the bottom of the capsule, preferably integrally formed with the bottom.
  • the support structure comprises not only a support but a plurality of support elements, the filter element is additionally stabilized. Inadvertent tearing of the filter element is thus excluded.
  • a light mass between adjacent support elements may be at most 3.0 mm, preferably at most 2.0 mm, particularly preferably at most 1.5 mm.
  • the filter element can be made correspondingly thinner and / or more labile.
  • the support structure may comprise a plurality of support elements arranged in concentric rings.
  • An arrangement of the support structure or the support elements in concentric rings allows a simple symmetrical design of the support structure, so that the flow of the prepared liquid food is symmetrical to a centrally located outlet.
  • the support elements may have spaced-apart ring segments and / or closed rings.
  • the design of the support elements as spaced-apart ring segments makes it possible to form a labyrinth structure, which causes an additional mixing of the prepared food.
  • a good and all-round support of the filter element can be ensured.
  • the closed rings can be designed with or without openings. It has been shown that closed rings with breakthroughs ensure additional mixing. However, if the closed rings are configured without apertures, that part of the prepared food which flows through the filter element near the side wall of the capsule body will have to overcome these closed rings on its side facing the filter element, which also results in additional mixing.
  • the support structure may have a maximum height of 2.5 mm, preferably not more than 2.0 mm, particularly preferably not more than 1.5 mm. Such sizing has been found to provide a good compromise between ideal mixing of the prepared food, good manufacturability and acceptable space requirements.
  • the height of the support structure is measured starting from the base of the soil.
  • the filter element may have passage openings of less than 0.5 mm, preferably less than 0.3 mm, particularly preferably less than 0.2 mm.
  • the choice of the size of the passage openings has a significant influence on the production of, for example, coffee. Through the use of very small openings can be ensured that the coffee powder used finely ground and thus produced a strong coffee can be.
  • a disadvantage, however, is that very small openings offer a higher resistance to the liquid flowing through, so that the production of the corresponding food takes more time.
  • the crema which is often desired during the production of a coffee can also be influenced.
  • the filter element may comprise a filter foil or a perforated foil.
  • a filter film is understood in particular to mean a film or membrane in the form of a paper filter or a polymer filter or a biopolymer filter. Such filter elements in the form of a filter film or a perforated film are easy to handle and inexpensive to integrate in the capsule.
  • the filter element may be mounted on the entire support structure. Possible methods for attaching the filter element to the support structures are gluing, heat sealing or welding. With an attachment of the filter element on all support structures can be prevented that the filter element does not stretch excessively in a range and bends and fills the gap between two support structures. It can be ensured that the filter element is taut over the entire support structure. It goes without saying that when using a filter element which is attached to all support structures, the support structures or the support elements can not be configured as closed rings without openings, otherwise the filter effect is no longer guaranteed over the entire surface of the filter element can.
  • the capsule can be designed such that it contains no aluminum.
  • Aluminum is to be avoided in the use of capsules for the preparation of liquid food from an environmental point of view.
  • the production of aluminum or the recycling of aluminum is complex and very energy intensive. Accordingly, a capsule containing no aluminum is loaded with less gray energy than a corresponding capsule with aluminum.
  • the entire capsule body is ideally made of plastic, for example by means of injection molding or by means of a deep-drawing process.
  • plastics the usual, known to those skilled materials have proven.
  • the lid and the filter element must be made accordingly from a plastic film or from a paper filter.
  • the support structure in combination with the filter element can be designed such that under atmospheric pressure the leakage of liquid from the capsule is prevented or reduced to a maximum of three, preferably a maximum of two, more preferably a maximum of one drop per second. It is understood by an atmospheric pressure that the pressure within the capsule is equal to the pressure which prevails outside the capsule. By means of a corresponding configuration, it is thus possible to successfully prevent dripping of the capsule or at least to reduce it to an acceptable level. The machine used with the capsule is accordingly less polluted, which is particularly pleasant for the user. In addition, the Make it easier for users to know when the preparation of the liquid food has been completed.
  • the filter element can be arranged in a plane with a shoulder formed in capsule body and the bottom can be lowered relative to the shoulder.
  • a shoulder is formed for example in the side wall of the capsule body.
  • the floor may have a corresponding step, which forms a paragraph. It is lowered not only the ground opposite the paragraph, but also the soil associated support structure.
  • the filter element is fixed to the edge of this paragraph.
  • the support structure may also be arranged on its side associated with the filter element in the same plane as the step.
  • the outlet opening of the capsule can be covered by a central support. Such an overlap of the outlet opening prevents the filter element from bending and blocking the outlet opening.
  • the outlet opening may be arranged at the end of an outlet pipe, wherein the outlet pipe has on the capsule side a plurality of circumferentially arranged inlet openings.
  • the outlet tube ends capsule side on the central support.
  • Such an outlet tube makes it possible to form the outgoing from the capsule jet of prepared food, so that a quiet flow takes place.
  • the outlet tube may be provided with a central jet former.
  • a sealing film may be arranged which allows an aroma-tight closure of the capsule.
  • the support elements may have parallel or mutually inclined side walls, wherein the included angle between the side walls is preferably less than 20 °.
  • FIG. 1 shows a capsule 1 according to the invention in a first embodiment. It is in the FIG. 1 the capsule 1 is shown in a top view while FIG. 2 the capsule 1 in a cross section along the line AA according to FIG. 1 shows. In the FIG. 2 In addition, a lid 5 is located, which in the FIG. 1 is not visible. In addition, a substance 7 for the preparation of a liquid food was indicated schematically.
  • the capsule 1 has a substantially rotationally symmetrical capsule body 2.
  • the capsule body 2 is formed by a side wall 4 and a bottom 10.
  • a shoulder 3 is formed, which defines a lowered portion of the bottom 10.
  • a support structure 11 is arranged, which comprises a central support 12 and a plurality of support elements 13.
  • the central support 12 covers an outlet in the bottom 10 of the capsule 1, which is formed by an outlet tube 21 with an outlet opening 20 and on the capsule side arranged inlet openings 22.
  • the support members 13 are arranged annularly coaxially around the central support 12 around.
  • the three inner support members 13 each form closed rings with openings, while the outermost support member 13 is formed by a plurality of spaced-apart ring segments.
  • a filter element 30 is arranged, which prevents undissolved particles of the substance 7 from being rinsed out of the capsule 1 during the preparation of the liquid food.
  • water with high pressure is injected through its lid 5 into a chamber 6 between the lid 5 and the filter element 30.
  • the water will dissolve or brew or extract the substance 7 contained therein.
  • the prepared liquid food is pressed through the filter element 30 and leave the capsule 1 through the outlet tube 21 and the outlet opening 20. So that the prepared food can emerge from the capsule 1 in an ordered liquid jet, the outlet tube 21 has a centrally arranged jet former 23.
  • the capsule body 2 can be made of a plastic material, for example by injection molding. If the cover 5 is also made of a plastic material, a significantly better life cycle assessment can be achieved compared to the conventional known coffee capsules with aluminum.
  • FIG. 3 shows an enlarged detail C from the FIG. 2 , Evident is the lowered portion of the bottom 10, wherein in the bottom 10 a paragraph 3 is formed. Also visible are the support elements 13 and the central support 12, which together form the support structure 11, on which the filter element 13 rests. Also visible are the outlet pipe 21 and the inlet opening 22 in this outlet pipe. The inlet openings 22 allow a passage of the prepared food from the lowered portion of the bottom 10 in the outlet tube 21. As already discussed above, three of the four support members 13 are formed as closed rings with openings and the outermost support member as spaced-apart ring segments.
  • the filter element 30 can be mounted not only on the shoulder 3 and the central support 12, but also on the support elements 13 are fixed.
  • the filter element 30 is thus held very stable in the bottom region of the capsule 1. Nevertheless, the filter element 30 can be used on its entire surface as a filter. The prepared food can accordingly penetrate the entire surface of the filter element 30 and nevertheless reach the inlet opening 22 of the outlet tube 21.
  • FIG. 4 shows a central section of a cross section through the capsule 1 after FIG. 1 along the line BB.
  • the cutting plane is placed through the outermost closed ring of the support element 13. It is only the sectional area shown with this support element. Clearly visible are the apertures 14 which, despite the attached filter element allow penetration of the prepared food by the support member 13.
  • FIG. 5 shows a top view of an inventive capsule 1 in a second embodiment.
  • the capsule in turn has a substantially rotationally symmetrical capsule body 2.
  • the support structure 11, which has a central support 12 and a plurality of ring segments disposed coaxially around the central support 12 as support elements 13, is clearly recognizable. Only the second outermost support element 13 is designed as a circumferentially closed ring, as will be explained further in FIG.
  • the capsule 1 is identical to the capsule 1 of FIG. 1 ,
  • FIG. 6 is an enlarged section of a cross section through the capsule 1 of FIG. 5 along the line DD in analogy to FIG. 3 shown.
  • the support structure 11th includes.
  • the support structure 11 is in turn composed of a central support 12 and four support elements 13.
  • the filter element 30 is arranged, which also rests on the shoulder 3 of the bottom 10.
  • the filter element 30 is fixed only on the shoulder 3 and on three of the four support members 13 and on the central support 12.
  • the filter element 30 is only on.
  • This support member is formed in contrast to the other support members 13 as a closed ring, which has no openings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)

Claims (11)

  1. Capsule (1) comprenant un corps de capsule (2) de préférence de forme symétrique de révolution avec au moins une paroi latérale (4) et un fond (10) avec une ouverture de sortie (20), ainsi qu'un couvercle recouvrant le corps de capsule (2) et un élément de filtre (30) pour la formation d'au moins une chambre (6), qui contient au moins une substance (7) pour la préparation d'un produit alimentaire liquide, dans laquelle l'élément de filtre (30) sépare la chambre (6) de l'ouverture de sortie (20), dans laquelle le couvercle (5) forme un côté d'entrée et le fond (10) avec l'ouverture de sortie (20) forme un côté de sortie pour le passage d'un liquide à travers la chambre (6), dans laquelle le fond (10) présente une structure de support (11) avec au moins un appui central (12) pour l'élément de filtre (30), dans laquelle la structure de support (11) comprend plusieurs éléments de support (13), qui sont disposés dans le fond (10) de la capsule (1) et qui sont formés d'une pièce avec le fond (10), dans laquelle la structure de support (11) comprend plusieurs éléments de support (13) disposés en anneaux concentriques, dans laquelle les éléments de support (13) présentent des anneaux fermés avec des passages (14), caractérisée en ce que la structure de support (11) supporte et stabilise l'élément de filtre (30) de telle manière qu'il résiste à une pression nécessaire pour l'extraction du produit alimentaire liquide et qu'une déchirure imprévue de l'élément de filtre (30) soit exclue.
  2. Capsule (1) selon la revendication 1, caractérisée en ce qu'une dimension libre entre des éléments de support voisins (13) vaut au maximum 3,0 mm, de préférence au maximum 2,0 mm, et de préférence encore au maximum 1,5 mm.
  3. Capsule (1) selon une revendication 1 ou 2, caractérisée en ce que les éléments de support (13) présentent des segments d'anneau espacés les uns des autres.
  4. Capsule (1) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la structure de support (11) présente une hauteur maximale de 2,5 mm, de préférence au maximum de 2,0 mm, et de préférence encore au maximum de 1,5 mm.
  5. Capsule (1) selon l'une quelconque des revendications 1 à 4, caractérisée en ce que l'élément de filtre (30) présente des ouvertures de passage (31) de moins de 0,5 mm, de préférence de moins de 0,3 mm, et de préférence encore de moins de 0,2 mm.
  6. Capsule (1) selon l'une quelconque des revendications 1 à 5, caractérisée en ce que l'élément de filtre (30) comprend une feuille filtrante (32) ou une feuille perforée.
  7. Capsule (1) selon l'une quelconque des revendications 1 à 6, caractérisée en ce que l'élément de filtre (30) est fixé sur toute la structure de support (11).
  8. Capsule (1) selon l'une quelconque des revendications 1 à 7, caractérisée en ce que la capsule (1) ne contient pas d'aluminium.
  9. Capsule (1) selon l'une quelconque des revendications 1 à 8, caractérisée en ce que l'élément de filtre (30) est disposé dans un plan avec un retrait (3) formé dans le corps de capsule (2) et le fond (10) est abaissé par rapport au retrait (3).
  10. Capsule (1) selon l'une quelconque des revendications 1 à 9, caractérisée en ce que l'ouverture de sortie (20) est recouverte par un appui central (12).
  11. Capsule (1) selon l'une quelconque des revendications 1 à 10, caractérisée en ce que l'ouverture de sortie (20) est disposée à l'extrémité d'un tube d'écoulement (21) et le tube d'écoulement (21) présente côté capsule plusieurs ouvertures d'entrée (22) disposées en périphérie.
EP16175534.3A 2015-07-14 2016-06-21 Capsule de preparation d'un produit alimentaire liquide Active EP3118140B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01023/15A CH711329A2 (de) 2015-07-14 2015-07-14 Kapsel für die Zubereitung eines flüssigen Lebensmittels.

Publications (2)

Publication Number Publication Date
EP3118140A1 EP3118140A1 (fr) 2017-01-18
EP3118140B1 true EP3118140B1 (fr) 2019-06-12

Family

ID=56360172

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16175534.3A Active EP3118140B1 (fr) 2015-07-14 2016-06-21 Capsule de preparation d'un produit alimentaire liquide

Country Status (4)

Country Link
EP (1) EP3118140B1 (fr)
CH (1) CH711329A2 (fr)
ES (1) ES2745008T3 (fr)
PT (1) PT3118140T (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU590349B2 (en) * 1985-11-11 1989-11-02 Douwe Egberts Koninklijke Tabaksfabriek-Koffiebranderijen-Theehandel N.V. A disposable filter cartridge, whether or not combined with a water reservoir
US6645537B2 (en) * 2000-02-18 2003-11-11 Keurig, Incorporated Beverage filter cartridge
ES2382717T3 (es) * 2009-03-31 2012-06-12 Nestec S.A. Cápsula con filtro para preparar una composición nutritiva o alimenticia, líquida, y sistema de producción de una bebida correspondientemente en concordancia
IT1402944B1 (it) * 2010-12-15 2013-09-27 Sarong Spa Capsula per bevande e relativa macchina per utilizzare detta capsula
ES2398278B2 (es) 2012-08-28 2013-12-18 Unión Tostadora, S.A. Cápsula para máquina de preparación de bebida

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3118140A1 (fr) 2017-01-18
CH711329A2 (de) 2017-01-31
ES2745008T3 (es) 2020-02-27
PT3118140T (pt) 2019-09-04

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