EP2238050B1 - Capsule à labyrinthe pour boisson en poudre - Google Patents

Capsule à labyrinthe pour boisson en poudre Download PDF

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Publication number
EP2238050B1
EP2238050B1 EP08709807A EP08709807A EP2238050B1 EP 2238050 B1 EP2238050 B1 EP 2238050B1 EP 08709807 A EP08709807 A EP 08709807A EP 08709807 A EP08709807 A EP 08709807A EP 2238050 B1 EP2238050 B1 EP 2238050B1
Authority
EP
European Patent Office
Prior art keywords
labyrinth
capsule
edge
plate
sealing film
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.)
Not-in-force
Application number
EP08709807A
Other languages
German (de)
English (en)
Other versions
EP2238050A1 (fr
Inventor
Wolfgang Zangerle
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.)
Nestec SA
Original Assignee
Nestec SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nestec SA filed Critical Nestec SA
Publication of EP2238050A1 publication Critical patent/EP2238050A1/fr
Application granted granted Critical
Publication of EP2238050B1 publication Critical patent/EP2238050B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D85/8055—Means for influencing the liquid flow inside the package

Definitions

  • This invention relates to a labyrinth capsule containing a powder for making a beverage.
  • Such capsules are mainly used for the machine preparation of coffee.
  • such a capsule may also contain other powders, such as effervescent tablet powder, powders for the preparation of syrups or tea, etc.
  • the task of the capsule is to temporarily store this powder and then to provide by the machine instant preparation for excellent beverage quality.
  • hot or cold water is pressed with pressure through the capsule and formed by the same to a possible laminar flowing and to avoid spattering to a not too fast flowing spout jet.
  • the water should also be intimately mixed with the powder so that it is completely dissolved in the water flowing through.
  • Conventional capsules consist of a deep-drawn small plastic cup, the bottom of which is outwardly cambered and prepared in the center to be pierced by a spike, creating a round spout.
  • a labyrinth plate with serrated outer edge is inserted inside.
  • this plate On the side of this plate, which is directed against the ground, this plate forms a labyrinth structure with central Mandrel to create the spout hole while having a plurality of piercing spikes on the upwardly directed side.
  • this plate is then inserted from above a sealing foil made of aluminum or plastic. The whole cup-like capsule is closed after filling with powder at the top with a sealing film.
  • this sealing film is pierced and through the resulting hole is pressed at high pressure brewing liquid, usually hot water, into the capsule.
  • the liquid penetrates the powder at high pressure. Due to the hydrostatic pressure, the sealing foil is pressed against the cup wall at its edge and continues to seal there. However, the piercing spikes penetrate the sealing foil on the inserted labyrinth plate.
  • the liquid with the dissolved powder flows through the many holes formed in the sealing film. Below the sealing film, the liquid flows radially against the edge of the labyrinth plate and flows around its edge between the tooth gaps of the toothed edge.
  • the lancing labyrinth plate is inserted only in the capsule and is not securely positioned there. This plate can therefore move slightly out of the center. When that happens, the edge does not flow all around evenly. As a further consequence, then the spout is not exactly in the center of the capsule floor, but is slightly offset laterally. It then creates a skewed outgoing beam.
  • the flow through the labyrinth is not guaranteed in every case. Because the labyrinth plate is only inserted, it can lift slightly under the fluid pressure of the liquid flowing around its edge in the cup. As a result, the liquid flows below the labyrinth along the bottom of the cup to the spout, and does not really flow through the labyrinth. It can then be achieved no intimate mixing by turbulence in the labyrinth. Accordingly, then the good solution of the powder is not guaranteed in the flowing liquid.
  • the object of the present invention is therefore to provide a labyrinth capsule for beverage powder, which overcomes the above-mentioned disadvantages.
  • a labyrinth capsule for beverage powder consisting of a cup-shaped capsule whose capsule bottom is formed by a Labyrinthpiatte; which has on its upper side a labyrinth structure and piercing spikes, and in the center of a hole with central round pin, and on which labyrinth plate a sealing foil placed and welded along its edge to the edge of the labyrinth plate directly or indirectly, and with the webs of the labyrinth structure in the first Half of the labyrinth plate is welded welded, wherein the capsule is sealed, including the filling at its upper edge with a closing foil.
  • FIG. 1 shows the first component of this total of four parts capsule for beverage powder, for example for coffee or an effervescent powder.
  • This first component forms the conical wall 1 of a cup-like capsule, with cantilever edge 2 at the top and inwardly projecting edge 3 at the bottom.
  • This ingredient is used in most Cases made by deep-drawing of a laminate plastic with barrier function, which can ensure the required gas-tightness.
  • a bead preferably runs as energy directors ERG for later welding of a sealing film on the upper edge 2 and a labyrinth plate on the lower edge 3.
  • the cup can also be made together with the bottom as a one-piece molded part.
  • the bottom forms in this case at the same time the labyrinth plate, as will become clear.
  • the bottom, which forms the labyrinth plate, at its edge has a shoulder for the welding of a sealing film, and this shoulder may be provided with a bead as energy directors ERG for the sealing film réelleschweissende.
  • this In the center of the labyrinth plate 4, this has a spout hole 10, on which a basket 11 is formed, which spans the hole 10 and in the center of which is a round pin 12 extends down through the hole 10 therethrough.
  • the liquid then flows through the basket 11 in the spout hole 10, and because in the center of a round pin 12 is, it is flowed around and at the outlet of the liquid jet can be a total taper and therefore there is a largely laminar liquid jet.
  • the round pin 12 thus contributes to the formation of a laminar flow.
  • the sealing film 7 is welded, along its outer edge region 8 on the outer edge of the labyrinth plate 4, which is provided for this purpose with a bead 15 as energy directors.
  • the sealing film 7 is also welded to the inner, top planar labyrinth webs 5, which are arranged in concentric circles.
  • the outer, concentrically arranged webs are all equipped with an upstanding stinging dome 14.
  • the sealing film need not necessarily be impermeable to oxygen, unless the injection-molded version is produced in such a way that a barrier layer is introduced into the middle of the wall in a co-injection process. In this case, the film must have the same barrier properties.
  • the labyrinth plate 4 with the welded thereon sealing film 7 in a cross section.
  • this plate can also be made flat on its underside.
  • the labyrinth webs 5 are welded to the sealing foil 7 within the first half of the half of the labyrinth plate 4, while the outer webs do not touch the sealing foil 7.
  • the sealing film 7 is also with its peripheral edge region 8 with welded to the underlying edge of the labyrinth plate 4.
  • the spout hole 10 In the center of the labyrinth plate 4 can be seen the spout hole 10, arranged above the spout hole, the spout hole 10 spanning basket 11, and the downwardly directed round pin 12, which ensures a largely laminar beam when flowing out of the liquid from the top of the labyrinth plate 4 ,
  • the sealing foil 7 is perforated by the hydrostatic pressure of the liquid flowing from above into the capsule, the liquid flows through these perforation holes and afterwards against the radial direction towards the center of the labyrinth plate 4. Because the inner webs 5 are welded to the sealing film 7, the liquid must imperatively flow through the labyrinth formed by them and the resulting turbulence promotes the mixing of the liquid with the powder and the solution of the powder in the liquid.
  • FIG. 6 shows this capsule 1 for beverage powder in a cross section.
  • the area above the sealing film 7 is completely dense, in the case of a thermoformed capsule wall made of laminate plastic and oxygen-tight sealing film 7 even oxygen-tight and thus especially suitable for sensitive to oxygen reactive fillers.
  • the separately sprayed labyrinth plate 4 was inserted into the capsule wall 1 and welded to its lower edge. Thereafter, the sealing film 7 was inserted from above and welded to the peripheral edge and the inner labyrinth ridges 5 of the labyrinth plate 4.
  • the sealing foil 7 is merely inserted and welded along its edge 8 to the labyrinth plate 4, as well as with its inner labyrinth webs 5.
  • a closing foil can be, for example, an aluminum foil, which then closes the contents in an oxygen-tight manner, or else a simple plastic foil, if the oxygen-tightness does not have to be guaranteed, or else a laminate-plastic foil of the same or similar material as that on the bottom Labyrinth plate 4 welded sealing foil 7.
  • FIG. 7 another variant for the design of the labyrinth plate 4 is shown. It has in the inner region of its radius labyrinth ridges 5, which have a special shape. Their side walls form namely concave indentations, so that perpendicular to the Labrinthplatte 4 standing Kännel are formed.
  • the next inner labyrinth ridges 5 are also initially in plan rectangular blocks, which are also arranged with its longitudinal side along a concentric circle, but consistently between two outer, opposite labyrinth ridges of the outermost ring, so offset relative to the same with respect to the radial.
  • These labyrinth ridges 5 of this next inward ring now form each with its outer as well as on its inner side a standing Kännel, so a concave indentation.
  • the labyrinth ridges are arranged in each case between the labyrinth ridges of the preceding ring on the next inwardly following ring and on their outside they are concave.
  • labyrinth ridges 5 Arranged in the outer half of the radius of the labyrinth plate 4 labyrinth ridges 5 are formed of arcuate elements 13 with vertically upwardly projecting spikes 14, wherein the arcuate elements 13 are arranged on concentric circles, so that the liquid must flow around them. However, these arcuate elements 13 are substantially lower than the other labyrinth ridges. 5
  • FIG. 8 shows this labyrinth plate 4 with welded thereon sealing film 7 shown in a cross section.
  • the labyrinth plate 4 is here designed with a flat bottom 15.
  • the labyrinth bridges 5 in the first half of the radial labyrinth plate 4 are all the same high, so that the sealing film 7 welded on the same runs flat.
  • the sealing film 7 drops down in the radial direction and is welded with its edge 8 here with the upper side of the lower edge 3 of the cup 1.
  • a small gap remains free. As soon as the sealing foil 7 is subjected to sufficient hydraulic pressure from above, it is pressed downwards and then the piercing mandrels 14 pierce the sealing foil 7.
  • FIG. 9 shows an alternative alternative for the welding of the labyrinth plate 4 with the sealing film 7.
  • the bottom of the outer edge 8 of the sealing film 7 is welded directly to the top of the outer edge of the labyrinth plate 4.
  • this projecting edge 3 between the sealing film 7 and labyrinth plate 4 is welded, its causes by the deep drawing process manufacturing slightly varying edge strength that the distance between the sealing film 7 and the piercing spikes 14 is not the same everywhere and a defintive distance can not be met accurately , Therefore, a reliable piercing over the entire circumference is not ensured in this welding of the cup rim 3. With the welding shown here, however, can be remedied, because so the distances between the sealing film 7 and piercing spikes 14 are well defined and consistent.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)
  • Closures For Containers (AREA)
  • Manufacturing Of Micro-Capsules (AREA)

Claims (8)

  1. Capsule à labyrinthe pour de la poudre de boisson, constituée d'une capsule en forme de godet (1) dont le fond de capsule est formé par une plaquette à labyrinthe (4), laquelle présente sur sa face de dessus une structure de labyrinthe ainsi que des pointes de percée (14) ainsi qu'un trou (10) dans le centre avec un tenon central rond (12) qui peut veiller à un jet en grande partie laminaire lors de l'écoulement du liquide depuis la face de dessus de la plaquette à labyrinthe (4) et dans lequel un film d'étanchéité (7) est placé sur la plaquette à labyrinthe (4) et dans lequel la capsule (1) est scellée sous l'inclusion du remplissage sur son rebord supérieur (2) par un film de fermeture, caractérisée en ce que le film d'étanchéité (7) est soudé le long de son bord avec le rebord de la plaquette à labyrinthe (4) directement ou indirectement ainsi qu'avec les montants de la structure à labyrinthe dans la première moitié du rayon de la plaquette à labyrinthe (4).
  2. Capsule à labyrinthe pour de la poudre de boisson selon la revendication 1, caractérisée en ce qu'elle est constituée d'une capsule en forme de godet (1) sans fond de capsule à partir d'un film laminé en matière plastique et embouti en profondeur, dans laquelle un bord faisant saillie vers l'intérieur (3) est conformé sur le bord inférieur de la capsule (1) avec lequel une plaquette à labyrinthe (4) est soudée et scellée avec un film d'étanchéité (7) comme fond de capsule, en ce qu'un film d'étanchéité (7) est posé sur la plaquette à labyrinthe (4) et est soudé avec la face de dessous de son bord (8) à la face de dessus du bord de la plaquette à labyrinthe (4) et après quoi, la face de dessus du bord du film d'étanchéité (7) est soudé à la face de dessous du bord (3) de la capsule (1) en saillie vers l'intérieur.
  3. Capsule à labyrinthe pour de la poudre de boisson selon la revendication 1, caractérisée en ce qu'elle est constituée d'une capsule en forme de godet (1) sans fond de capsule à partir d'un film laminé en matière plastique et embouti en profondeur, dans laquelle un bord faisant saillie vers l'intérieur (3) est conformé sur le bord inférieur de la capsule (1), dont la face de dessous est soudée à la face de dessus de la plaquette à labyrinthe (4) de telle sorte que celle-ci forme le fond de la capsule et en ce que la face de dessus du bord faisant saillie vers l'intérieur (3) est soudé à la face de dessous du bord d'un film d'étanchéité (7).
  4. Capsule à labyrinthe pour de la poudre de boisson selon l'une des revendications précédentes, caractérisée en ce que la capsule en forme de godet (1) sans fond de capsule ainsi que le film d'étanchéité (7) sont constitués d'un film laminé en matière plastique et embouti en profondeur et étanche à l'oxygène.
  5. Capsule à labyrinthe pour de la poudre de boisson selon la revendication 1, caractérisée en ce que la capsule en forme de godet (1) est fabriquée en un seul tenant à partir de la paroi de capsule et du fond de capsule sous la forme de la plaquette à labyrinthe (4) comme pièce moulée par injection.
  6. Capsule à labyrinthe pour de la poudre de boisson selon l'une des revendications précédentes, caractérisée en ce que, sur la face de dessus de la plaquette à labyrinthe (4), des montants de labyrinthe (5) sont conformés dans la première moitié du rayon avec un décalage les uns par rapport aux autres en référence à la direction radiale (5) et, dans la seconde moitié du rayon de la plaquette à labyrinthe, des éléments circulaires en forme d'anneau (13) avec un décalage les uns par rapport aux autres sont conformés en référence à la direction radiale, chacun avec un pointe de percée (14) qui dépasse vers le haut.
  7. Capsule à labyrinthe pour de la poudre de boisson selon la revendication 6, caractérisée en ce que les montants de labyrinthe (5) et les éléments circulaires en forme d'anneau (13) sont conformés sur des cercles concentriques.
  8. Capsule à labyrinthe pour de la poudre de boisson selon la revendication 6, caractérisée en ce que la plaquette à labyrinthe (4) présente un fond plan.
EP08709807A 2008-02-06 2008-02-06 Capsule à labyrinthe pour boisson en poudre Not-in-force EP2238050B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2008/000321 WO2008087553A1 (fr) 2007-01-18 2008-02-06 Capsule à labyrinthe pour boisson en poudre

Publications (2)

Publication Number Publication Date
EP2238050A1 EP2238050A1 (fr) 2010-10-13
EP2238050B1 true EP2238050B1 (fr) 2011-04-20

Family

ID=42729443

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08709807A Not-in-force EP2238050B1 (fr) 2008-02-06 2008-02-06 Capsule à labyrinthe pour boisson en poudre

Country Status (6)

Country Link
US (1) US8499682B2 (fr)
EP (1) EP2238050B1 (fr)
CN (1) CN102036885B (fr)
AT (1) ATE506292T1 (fr)
DE (1) DE502008003326D1 (fr)
WO (1) WO2008087553A1 (fr)

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ITUA20161349A1 (it) * 2016-03-04 2017-09-04 Bisio Progetti Spa Capsula migliorata per la preparazione di bevande ad infusione e solubili
CN108883874B (zh) 2016-04-07 2023-02-28 雀巢产品有限公司 具有开口装置和一体阻隔层的封闭胶囊
IT201600082459A1 (it) * 2016-08-04 2018-02-04 Bisio Progetti Spa Capsula per la preparazione di bevande ad infusione e solubili
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Publication number Priority date Publication date Assignee Title
DE102015220439A1 (de) * 2015-10-20 2017-04-20 BSH Hausgeräte GmbH Heißgetränkezubereitungseinrichtung

Also Published As

Publication number Publication date
CN102036885A (zh) 2011-04-27
DE502008003326D1 (de) 2011-06-01
CN102036885B (zh) 2012-07-04
US8499682B2 (en) 2013-08-06
WO2008087553A1 (fr) 2008-07-24
ATE506292T1 (de) 2011-05-15
US20100307930A1 (en) 2010-12-09
EP2238050A1 (fr) 2010-10-13
WO2008087553A8 (fr) 2010-09-16

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