EP2923969A1 - Capsule for preparing a beverage - Google Patents

Capsule for preparing a beverage Download PDF

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Publication number
EP2923969A1
EP2923969A1 EP15160322.2A EP15160322A EP2923969A1 EP 2923969 A1 EP2923969 A1 EP 2923969A1 EP 15160322 A EP15160322 A EP 15160322A EP 2923969 A1 EP2923969 A1 EP 2923969A1
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EP
European Patent Office
Prior art keywords
capsule
groove
wall
piston
conical
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Granted
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EP15160322.2A
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German (de)
French (fr)
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EP2923969B1 (en
Inventor
Olivier Brivois
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Brain Corp SA
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Brain Corp SA
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    • 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 present invention relates to a capsule for receiving a substance for the preparation of a beverage when the capsule is installed in a machine type coffee machine or infusion to be held by a piston during the passage of the liquid extractor to through the capsule and the substance it contains, the rotational symmetrical capsule having a bottom and a side wall generally forming a truncated cone and a rim receiving a cap after loading the capsule with the substance.
  • Capsules having a frustoconical general shape and in particular a capsule described in the document are already known.
  • FR 12 57 144 This capsule is pre-drilled with a bottom provided with holes distributed on concentric circles. These holes are funnel-shaped open outwards and the narrowed portion opens into the capsule.
  • the holes distributed over the entire surface of the bottom are intended to distribute as regularly as possible hot water (or more generally the hot fluid) in the volume of the capsule. For the same reason, it is necessary to avoid that the pins of the piston do not pierce the bottom in more and do not disturb by holes larger than the calibrated holes, the regularity of the distribution of the water on all the surface of the bottom.
  • the bottom has a circular rib projecting inwardly of the capsule to receive the pins of the piston without them touching the bottom.
  • this capsule relatively complex shape requires a special packaging, hermetic, in the form of a pouch certainly facilitating handling but having the disadvantage of representing an additional cost.
  • the present invention aims to develop a simple capsule, easy to pack and use, and to confine all the aroma of the substance in the single volume of the capsule to avoid special outdoor packaging and reduce the cost.
  • the invention relates to a capsule of the type defined above characterized in that the capsule is hermetic with a flat bottom has an inner groove, circular, centered on the axis of the capsule and corresponding to the circle on which are the pins of the piston of the machine, this groove forming a local reduction in the thickness of the bottom leaving only a web of material, the generally frustoconical side wall having a main part under the flange, constituted by a conical wall and a base cylinder near the bottom, joining the conical wall by a junction cone and the bottom by a base cone.
  • the capsule has the advantage of avoiding the outer packaging envelope since it is hermetic which not only simplifies packaging reduces the cost and volume of waste but also has the advantage of confining the coffee and its aromas in the narrow volume of the single capsule until the piercing of the capsule and the arrival of the hot fluid.
  • the quality of the coffee thus prepared or more generally of the drink according to the substance packaged in the capsule is better for the same quantity of substance, although the arrival of the hot fluid in the capsule, is done by the only holes made by the pins of the piston and not according to a set of numerous small holes regularly distributed.
  • the bottom of the capsule being flat, it reduces the size of the inner volume of the capsule since it does not have a deep groove protruding inside the capsule. This makes it possible to increase the quantity of substance placed in the capsule while not increasing the external volume of the capsule, imposed by the uniform cavity of the different machines used for the preparation of a drink with such capsules.
  • the inner groove defining the web which locally weakens the bottom facilitates the perforation of the bottom by the pins of the piston of the machine, spikes which correspond to a similar distribution in the different machines using such capsules.
  • the perforation of the bottom made with the pins does not produce any deformation of the bottom since the pins can easily pass through the veil of the inner groove without the bottom being weakened since this veil extends only on a crown of reduced width and as moreover the bottom is reinforced, the capsule does not risk to be crushed; it is held rigidly by the side wall through its junction with the base cone and the base cylinder.
  • the substance, especially the coffee contained in the capsule is better compressed in the capsule which allows better extraction.
  • the junction cone above the cylindrical portion of the wall comprises, on its inner surface, interlocking brackets having a rising side and an upper side intersecting forming a support stop which forms with the upper side a peripheral support surface on which rests the stiffening cone of the nested empty capsule.
  • the stop at the meeting of the base cone and the cylinder is set back relative to the extension of the geometric conical frustum of the conical wall.
  • the interlocking brackets on the inner periphery of the cylindrical part form a particularly stable support receiving the stiffening cone so that the support between the cone and the brackets is practically limited to a point contact of this conical surface slightly inclined with respect to the bottom and thus with respect to the bearing surface formed by the upper edges of the different consoles.
  • the support brackets stiffen this area of the wall at the junction between the cylindrical portion and the conical portion.
  • the inner surface of the cylindrical portion has a peripheral stiffening rib which reinforces the cylindrical portion against crushing by the pressurized liquid, at the moment of injection of the liquid into the capsule, exerted on the entire peripheral area and not only on the bottom.
  • the bottom has an increased thickness relative to the thickness of the side wall.
  • the bottom has a thickness of the order of 1 mm and the veil of the inner groove has a thickness of about 1/5 th of the thickness of the bottom.
  • the inner groove has a rectangular section facilitate manufacturing by injection molding.
  • the groove has an inner side which corresponds to a radius of 5 mm and the outer side of the groove has a radius of about 7 mm so that the groove has a width of the order of 2 mm.
  • the underside of the rim receiving the edge of the piston of the machine comprises a stiffening ring and an outer ring defining with an inner ring near the side wall and in the meantime, a sealing lip forming the receiving surface of the piston edge.
  • This receiving surface thus makes it possible to receive in a very tight manner, the edge of the piston so as to improve the passage of the fluid under pressure into the product contained in the capsule to prevent this liquid, that is to say the water does not bypass the junction between the piston and the capsule without passing through the product contained in the capsule.
  • the outer ring, the inner ring and the lip have a triangular section with an angle at the summit of the order of 40 °.
  • the base cone comprises near its junction with the bottom a lower rib in particular of rectangular section. This rib stiffens interestingly the background.
  • the junction of the base cone and the bottom comprise a peripheral groove which also reinforces the capsule especially at the bottom, avoiding its crushing when the pins of the piston pass through the bottom.
  • the subject of the invention is a hermetically sealed, that is to say not pre-drilled, capsule intended to receive a substance for preparing a beverage such as coffee or an infusion.
  • This capsule C according to the orientation of the figure 1 , has a bottom 1 through which the hot fluid (hot water or mixture of hot water and steam) arrives for the preparation of the drink.
  • the bottom 1 is connected to the side wall 3 by a conical base 2.
  • the side wall 3 consists of a base cylinder 31 joining a conical wall 33 by a junction conical 32.
  • the conical wall 33 is continued by a flange 4.
  • Internally the top of the conical wall 33 has peripheral ribs 34 serving as hooking ribs for extracting the capsule from the injection mold. These ribs 34 are not involved in the subsequent operation of the capsule that is to say its filling with a substance powder (coffee, tea) or during the establishment and use of the capsule in a beverage preparation machine.
  • FIGS. 2A, 2B, 2C show in more detail the different elements of the symmetrical capsule structure in rotation with respect to its axis (xx).
  • the side view and the axial section view show in particular the shape of the flat bottom 1 having in its center (axis xx) a reentrant dome 11 of stiffening.
  • the flat bottom 1 continues upwards through the base cone 2 which, with the bottom 1, an angle of the order of 30 to 45 °.
  • the base cone 2 joins the base cylinder 31 stiffening the capsule near the bottom.
  • the cylinder 31 is connected through the conical junction 32 to the conical wall 33.
  • the conical junction 32 has a greater conicity than the conical wall 33 to absorb over a short height, the difference in diameter with respect to the cylinder 31 which allows the nesting while remaining, through the side wall 3, in a frustoconical envelope.
  • the junction 32 of the base cylinder 31 and the conical wall 33 is provided with interlocking brackets 35 whose rising side 351 extends the inner surface of the cylinder 31 and the upper side 352 forms a nesting bearing surface. .
  • FIG. 3C shows particularly the inner groove 11 with its sides 121, 123 and the web 122. This figure also highlights the distribution of interlocking brackets 34.
  • the top 41 of the flange 4 is flat to receive the cap 5 and the bottom is bordered by a stiffening ring 42.
  • the underside Near the junction of the flange 4 and the wall 3, the underside has an outer ring 43 of triangular section and an inner ring 44 also of triangular section between which there is a sealing lip 45.
  • This space between the outer ring 43 and the inner ring 44 receives the edge P systematically represented by the cylindrical chamber of the piston of the machine.
  • the rim 4 of the capsule is thus guided to appropriately receive the peripheral edge of the piston which is positioned between the outer ring 43 and the inner ring 44 by crushing the sealing lip 45, the assembly forming a labyrinth seal.
  • the outer ring is truncated triangular section or trapezoidal with an angle at the top of the order of 40 °.
  • the inner ring 44 also has a triangular section with a rounded top with an angle of the order of 40 ° and the interval between the two rings 43, 44 is occupied by the sealing lip 45 which also has a triangular section with a sharp top with an angle of the order of 40 ° so that the sealing lip 45 relatively high, can be crushed with good contact against the edge P also pressed against the rings 43, 44.
  • the inner groove 12 of the bottom 1 has a rectangular section delimited by an inner side 121, an outer side 123 and a lower wall 122 in the form of a veil of very small thickness, sufficient to ensure the tight closure resistant to handling of the capsule while by facilitating its drilling by the pins of the piston, cause at this time the deformation of the bottom 1.
  • the wall-shaped sail 12 is level with the outside of the bottom of the bottom 1 of the capsule C.
  • the side inner 121 and outer side 123 have radii relative to the axis of revolution xx of the capsule, for example a length of 5 mm for the inner side and 7 mm for the outer side so as to leave a throat 12 of a width 4 of the order of 2 mm corresponding to the width of the crown surrounds the pins of the piston of the machines receiving such capsules.
  • the web 122 has a thickness of the order of 1/5 e of that of the bottom 1.
  • the bottom 1, thicker than the wall 3 has a thickness of about 1 mm and voila 122 a thickness of the order of 0.2 mm.
  • the figure 3 shows more explicitly the different constituent parts of the capsule C already described, in particular the joining line 321 between the conical junction 32 and the conical wall 33 as well as the shape of the brackets 35 having a rising side 351 that is to say parallel to the axis xx and in the extension of the inner wall of the cylinder 31 and an upper side 352 in a plane perpendicular to the axis xx; both sides form at their intersection a bearing stop 353.
  • the upper side 352 of the brackets 35 also forms a peripheral bearing surface.
  • the junction of the flat bottom 1 and the side wall 3 is reinforced by the very open shape of the base cone 2 whose wall has substantially the thickness of the side wall 3.
  • This base cone 2 is provided with an inner rib 22 of rectangular section near the junction 23 with the bottom 1.
  • This junction 23 is stiffened by the peripheral groove 24.
  • the capsule is stiffened and the bottom 1 resists the thrust of the piston pins and does not deform, avoiding crushing of the capsule, favoring its piercing by the pins of the piston and allowing better coffee compression that is to say no loss of pressure and thus better extraction.
  • the flat bottom 1 facilitates the holding of the capsule standing on its bottom.
  • the half-cut of the figure 4 shows the engagement of two empty capsules C1, C2 highlighting the net support of the base cone 2 on the consoles 35 and more particularly on the stop 352 or the upper edge 352.
  • This view also shows the slight withdrawal of the 21 stops between the base cone 2 and the cylinder 31 relative to the inner surface of the cylinder 31 above the bracket 35.
  • the capsule C2 is supported by its base cone 2 partly on the stops 353 and partly on the upper side 352 of the brackets 35; its conical wall 33 is held without jamming by the inner surface of the conical wall 33 of the capsule C1. Due to this geometry of the capsules, the stop 21 can not get stuck at the meeting 321 of the junction 32 and the conical wall 33 so that the capsules C1 and C2 are easily detached from one another.

Abstract

Capsule destinée à recevoir une substance pour la préparation d'une boisson lorsque la capsule est installée dans une machine de type machine à café. La capsule a un fond (1), et une paroi latérale (3) s'inscrivant globalement dans un tronc de cône et un rebord (4) recevant un opercule (5) après chargement de la capsule avec la substance. Le fond plat (1) a une gorge intérieure (12), circulaire, centrée sur l'axe (xx) de la capsule et correspondant au cercle sur lequel se trouvent les picots du piston de la machine extraction. Cette gorge (12) forme une réduction locale de l'épaisseur du fond laissant subsister seulement un voile de matière (123). La paroi latérale (3) globalement tronconique a une paroi cylindrique (33) sous le rebord (4) et un cylindre de base (31) proche du fond (1), rejoignant la paroi conique (33) par une jonction conique (32) et le fond (1) par un tronc de cône de base (2).Capsule for receiving a substance for the preparation of a beverage when the capsule is installed in a coffee machine type machine. The capsule has a bottom (1), and a side wall (3) generally forming a truncated cone and a flange (4) receiving a lid (5) after loading the capsule with the substance. The flat bottom (1) has an inner groove (12), circular, centered on the axis (xx) of the capsule and corresponding to the circle on which are the pins of the piston of the extraction machine. This groove (12) forms a local reduction in the thickness of the bottom leaving only a web of material (123). The generally frustoconical side wall (3) has a cylindrical wall (33) under the flange (4) and a base cylinder (31) close to the bottom (1), joining the conical wall (33) by a conical junction (32). and the bottom (1) by a truncated cone base (2).

Description

Domaine de l'inventionField of the invention

La présente invention se rapporte à une capsule destinée à recevoir une substance pour la préparation d'une boisson lorsque la capsule est installée dans une machine de type machine à café ou à infusion pour y être tenue par un piston pendant le passage du liquide extracteur à travers la capsule et la substance qu'elle contient, la capsule symétrique en rotation ayant un fond et une paroi latérale s'inscrivant globalement dans un tronc de cône et un rebord recevant un opercule après chargement de la capsule avec la substance.The present invention relates to a capsule for receiving a substance for the preparation of a beverage when the capsule is installed in a machine type coffee machine or infusion to be held by a piston during the passage of the liquid extractor to through the capsule and the substance it contains, the rotational symmetrical capsule having a bottom and a side wall generally forming a truncated cone and a rim receiving a cap after loading the capsule with the substance.

Etat de la techniqueState of the art

On connaît déjà des capsules ayant une forme générale tronconique et notamment une capsule décrite dans le document FR 12 57 144 . Cette capsule est pré-percée avec un fond muni de trous répartis sur des cercles concentriques. Ces trous ont une forme d'entonnoir ouvert vers l'extérieur et dont la partie rétrécie débouche dans la capsule.Capsules having a frustoconical general shape and in particular a capsule described in the document are already known. FR 12 57 144 . This capsule is pre-drilled with a bottom provided with holes distributed on concentric circles. These holes are funnel-shaped open outwards and the narrowed portion opens into the capsule.

Les trous répartis sur toute la surface du fond ont pour but de distribuer aussi régulièrement que possible l'eau chaude (ou plus généralement le fluide chaud) dans le volume de la capsule. Pour cette même raison, il faut éviter que les picots du piston ne percent le fond en plus et ne perturbent par des trous plus grands que les trous calibrés, la régularité de la distribution de l'eau sur toute la surface du fond.The holes distributed over the entire surface of the bottom are intended to distribute as regularly as possible hot water (or more generally the hot fluid) in the volume of the capsule. For the same reason, it is necessary to avoid that the pins of the piston do not pierce the bottom in more and do not disturb by holes larger than the calibrated holes, the regularity of the distribution of the water on all the surface of the bottom.

Pour cela, le fond comporte une nervure circulaire en saillie vers l'intérieur de la capsule pour recevoir les picots du piston sans que ceux-ci ne touchent le fond. Mais cette capsule de forme relativement complexe nécessite un conditionnement particulier, hermétique, sous la forme d'une pochette facilitant certes les manipulations mais ayant l'inconvénient de représenter un coût supplémentaire.For this, the bottom has a circular rib projecting inwardly of the capsule to receive the pins of the piston without them touching the bottom. But this capsule relatively complex shape requires a special packaging, hermetic, in the form of a pouch certainly facilitating handling but having the disadvantage of representing an additional cost.

But de l'inventionPurpose of the invention

La présente invention a pour but de développer une capsule simple, facile à conditionner et à utiliser, et permettant de confiner tout l'arôme de la substance dans le seul volume de la capsule pour éviter un conditionnement spécial extérieur et réduire le coût.The present invention aims to develop a simple capsule, easy to pack and use, and to confine all the aroma of the substance in the single volume of the capsule to avoid special outdoor packaging and reduce the cost.

Exposé et avantages de l'inventionDescription and advantages of the invention

A cet effet l'invention a pour objet une capsule du type défini ci-dessus caractérisée en ce que la capsule est hermétique avec un fond plat a une gorge intérieure, circulaire, centrée sur l'axe de la capsule et correspondant au cercle sur lequel se trouvent les picots du piston de la machine, cette gorge formant une réduction locale de l'épaisseur du fond laissant subsister seulement un voile de matière, la paroi latérale globalement tronconique ayant une partie principale sous le rebord, constituée par une paroi conique et un cylindre de base proche du fond, rejoignant la paroi conique par un cône de jonction et le fond par un cône de base.For this purpose the invention relates to a capsule of the type defined above characterized in that the capsule is hermetic with a flat bottom has an inner groove, circular, centered on the axis of the capsule and corresponding to the circle on which are the pins of the piston of the machine, this groove forming a local reduction in the thickness of the bottom leaving only a web of material, the generally frustoconical side wall having a main part under the flange, constituted by a conical wall and a base cylinder near the bottom, joining the conical wall by a junction cone and the bottom by a base cone.

La capsule a l'avantage d'éviter l'enveloppe extérieure de conditionnement puisqu'elle est hermétique ce qui non seulement simplifie le conditionnement en réduit le coût et le volume de déchets mais a aussi l'avantage de confiner le café et ses arômes dans le volume étroit de la seule capsule et cela jusqu'au moment du perçage de la capsule et de l'arrivée du fluide chaud. La qualité du café ainsi préparé ou plus généralement de la boisson en fonction de la substance conditionnée dans la capsule, est meilleure pour une même quantité de substance, bien que l'arrivée du fluide chaud dans la capsule, se fasse par les seuls perçages réalisés par les picots du piston et non selon un ensemble de nombreux petits perçages régulièrement répartis.The capsule has the advantage of avoiding the outer packaging envelope since it is hermetic which not only simplifies packaging reduces the cost and volume of waste but also has the advantage of confining the coffee and its aromas in the narrow volume of the single capsule until the piercing of the capsule and the arrival of the hot fluid. The quality of the coffee thus prepared or more generally of the drink according to the substance packaged in the capsule, is better for the same quantity of substance, although the arrival of the hot fluid in the capsule, is done by the only holes made by the pins of the piston and not according to a set of numerous small holes regularly distributed.

De plus, le fond de la capsule étant plat, il réduit l'encombrement du volume intérieur de la capsule puisqu'il ne comporte pas de rainure profonde venant en saillie à l'intérieur de la capsule. Cela permet d'augmenter la quantité de substance placée dans la capsule tout en augmentant pas le volume extérieur de la capsule, imposé par la cavité uniforme des différentes machines servant à la préparation d'une boisson avec de telles capsules.In addition, the bottom of the capsule being flat, it reduces the size of the inner volume of the capsule since it does not have a deep groove protruding inside the capsule. This makes it possible to increase the quantity of substance placed in the capsule while not increasing the external volume of the capsule, imposed by the uniform cavity of the different machines used for the preparation of a drink with such capsules.

La gorge intérieure définissant le voile qui fragilise localement le fond facilite la perforation du fond par les picots du piston de la machine, picots qui correspondent à une répartition analogue dans les différentes machines utilisant de telles capsules. La perforation du fond effectuée avec les picots ne produit aucune déformation du fond puisque les picots peuvent facilement traverser le voile de la gorge intérieur sans pour autant que le fond ne soit fragilisé puisque ce voile ne s'étend que sur une couronne de largeur réduite et comme de plus le fond est renforcé, la capsule ne risque pas d'être écrasée ; elle est tenue rigidement par la paroi latérale grâce à sa jonction avec le cône de base et le cylindre de base. En outre, la substance, notamment le café contenu dans la capsule est mieux comprimée dans la capsule ce qui permet une meilleure extraction.The inner groove defining the web which locally weakens the bottom facilitates the perforation of the bottom by the pins of the piston of the machine, spikes which correspond to a similar distribution in the different machines using such capsules. The perforation of the bottom made with the pins does not produce any deformation of the bottom since the pins can easily pass through the veil of the inner groove without the bottom being weakened since this veil extends only on a crown of reduced width and as moreover the bottom is reinforced, the capsule does not risk to be crushed; it is held rigidly by the side wall through its junction with the base cone and the base cylinder. In addition, the substance, especially the coffee contained in the capsule is better compressed in the capsule which allows better extraction.

Suivant une autre caractéristique avantageuse, le cône de jonction au-dessus de la partie cylindrique de la paroi comporte, sur sa surface intérieure, des consoles d'emboitement ayant un côté montant et un côté supérieur se coupant en formant une arrête d'appui qui forme avec le côté supérieur une surface d'appui périphérique sur laquelle repose le cône de rigidification de la capsule vide emboîtée.According to another advantageous characteristic, the junction cone above the cylindrical portion of the wall comprises, on its inner surface, interlocking brackets having a rising side and an upper side intersecting forming a support stop which forms with the upper side a peripheral support surface on which rests the stiffening cone of the nested empty capsule.

Suivant une autre caractéristique avantageuse, l'arrête à la réunion du cône de base et du cylindre est en retrait par rapport au prolongement du tronc de cône géométrique de la paroi conique.According to another advantageous characteristic, the stop at the meeting of the base cone and the cylinder is set back relative to the extension of the geometric conical frustum of the conical wall.

Les consoles d'emboitement sur la périphérie intérieure de la partie cylindrique forment un appui particulièrement stable recevant le cône de rigidification de sorte que l'appui entre le cône et les consoles se limite pratiquement un contact ponctuel de cette surface conique faiblement inclinée par rapport au fond et ainsi par rapport à la surface d'appui constituée par les bords supérieurs des différentes consoles.The interlocking brackets on the inner periphery of the cylindrical part form a particularly stable support receiving the stiffening cone so that the support between the cone and the brackets is practically limited to a point contact of this conical surface slightly inclined with respect to the bottom and thus with respect to the bearing surface formed by the upper edges of the different consoles.

Il n'y a aucun risque de coincement de la capsule emboitée dans une autre capsule mais un simple appui ce qui facilite le déboitement des capsules de la pile dans la machine de remplissage.There is no risk of jamming of the capsule inserted in another capsule but a simple support which facilitates the disassembly of the battery caps in the filling machine.

De plus, les consoles d'appui rigidifient cette zone de la paroi à la jonction entre la partie cylindrique et la partie conique.In addition, the support brackets stiffen this area of the wall at the junction between the cylindrical portion and the conical portion.

Suivant une autre caractéristique, la surface intérieure de la partie cylindrique a une nervure de rigidification, périphérique qui renforce la partie cylindrique contre l'écrasement par le liquide sous pression, au moment de l'injection du liquide dans la capsule, s'exerçant sur toute la surface périphérique et non seulement sur le fond.According to another feature, the inner surface of the cylindrical portion has a peripheral stiffening rib which reinforces the cylindrical portion against crushing by the pressurized liquid, at the moment of injection of the liquid into the capsule, exerted on the entire peripheral area and not only on the bottom.

Suivant une autre caractéristique, le fond a une épaisseur augmentée par rapport à l'épaisseur de la paroi latérale.According to another feature, the bottom has an increased thickness relative to the thickness of the side wall.

Suivant une caractéristique avantageuse, le fond a une épaisseur de l'ordre de 1 mm et le voile de la gorge intérieur a une épaisseur de l'ordre de 1/5e de l'épaisseur du fond.According to an advantageous characteristic, the bottom has a thickness of the order of 1 mm and the veil of the inner groove has a thickness of about 1/5 th of the thickness of the bottom.

Suivant une autre caractéristique avantageuse, la gorge intérieure a une section rectangulaire facilitent la fabrication par moulage par injection.According to another advantageous feature, the inner groove has a rectangular section facilitate manufacturing by injection molding.

En fonction de la forme et de la répartition globalement uniforme des picots des pistons de machine utilisant des capsules, la gorge a un côté intérieur qui correspond à un rayon de 5 mm et le côté extérieur de la gorge a un rayon de l'ordre de 7 mm de sorte que la gorge a une largeur de l'ordre de 2 mm.Depending on the shape and the generally uniform distribution of the pins of the machine pistons using capsules, the groove has an inner side which corresponds to a radius of 5 mm and the outer side of the groove has a radius of about 7 mm so that the groove has a width of the order of 2 mm.

Suivant une autre caractéristique avantageuse, le dessous du rebord recevant le bord du piston de la machine comporte une couronne de rigidification et une couronne extérieure définissant avec une couronne intérieure près de la paroi latérale et dans l'intervalle, une lèvre d'étanchéité formant la surface de réception du bord du piston. Cette surface de réception permet ainsi de recevoir d'une manière très étanche, le bord du piston de façon à améliorer la traversée du fluide sous pression dans le produit contenu dans la capsule pour éviter que ce liquide, c'est-à-dire l'eau ne contourne la jonction entre le piston et la capsule sans traverser le produit contenu dans la capsule.According to another advantageous characteristic, the underside of the rim receiving the edge of the piston of the machine comprises a stiffening ring and an outer ring defining with an inner ring near the side wall and in the meantime, a sealing lip forming the receiving surface of the piston edge. This receiving surface thus makes it possible to receive in a very tight manner, the edge of the piston so as to improve the passage of the fluid under pressure into the product contained in the capsule to prevent this liquid, that is to say the water does not bypass the junction between the piston and the capsule without passing through the product contained in the capsule.

Cette étanchéité est parfaitement réussie grâce à la lèvre d'étanchéité importante qui occupe tout l'intervalle entre la couronne intérieure et la couronne extérieure ce qui permet de lui donner une certaine hauteur contre laquelle s'appuie le bord du piston qui, en même temps, est guidé par la couronne intérieure et la couronne extérieure et réalise également l'étanchéité vis-à-vis de ces deux couronnes.This seal is perfectly successful thanks to the important sealing lip which occupies the entire gap between the inner ring and the outer ring which allows to give it a certain height against which the edge of the piston rests, which at the same time is guided by the inner ring and the outer ring and also seals against these two rings.

Suivant une caractéristique particulièrement avantageuse, la couronne extérieure, la couronne intérieure et la lèvre ont une section triangulaire avec un angle au sommet de l'ordre de 40°.According to a particularly advantageous characteristic, the outer ring, the inner ring and the lip have a triangular section with an angle at the summit of the order of 40 °.

Suivant une autre caractéristique avantageuse, le cône de base comporte près de sa jonction avec le fond une nervure inférieure notamment de section rectangulaire. Cette nervure rigidifie de façon intéressante le fond.According to another advantageous characteristic, the base cone comprises near its junction with the bottom a lower rib in particular of rectangular section. This rib stiffens interestingly the background.

Suivant une autre caractéristiques avantageuse, la jonction du cône de base et du fond comportent une gorge périphérique qui, elle aussi, renforce la capsule surtout au niveau du fond, évitant son écrasement lorsque les picots du piston traversent le fond.According to another advantageous feature, the junction of the base cone and the bottom comprise a peripheral groove which also reinforces the capsule especially at the bottom, avoiding its crushing when the pins of the piston pass through the bottom.

Dessinsdrawings

La présente invention sera décrite ci-après de manière plus détaillée à l'aide d'un exemple de réalisation d'une capsule représentée dans les dessins annexés dans lesquels :

  • la figure 1 est une vue isométrique de la capsule représentée en position debout, la partie inférieure constituant le fond par lequel arrive le fluide chaud pour la préparation de la boisson et le dessus représenté sans son opercule étant le côté sortant de la préparation infusée,
  • la figure 2 dans ses parties 2A, 2B, 2C montre respectivement la vue de côté de la capsule, une vue en coupe axiale et une vue de dessus de la capsule,
  • la figure 3 est une vue à échelle agrandie partielle de la coupe axiale de la capsule,
  • la figure 3A est une vue agrandie du détail I de la figure 2B,
  • la figure 3B est une vue agrandie du détail II de la figure 2B,
  • la figure 4 est une demi-coupe de l'emboitement de deux capsules.
The present invention will be described hereinafter in more detail with the aid of an embodiment of a capsule shown in the accompanying drawings in which:
  • the figure 1 is an isometric view of the capsule shown in the upright position, the lower part constituting the bottom through which the hot fluid for the preparation of the beverage arrives and the top represented without its lid being the outgoing side of the infused preparation,
  • the figure 2 in its parts 2A, 2B, 2C shows respectively the side view of the capsule, an axial sectional view and a top view of the capsule,
  • the figure 3 is a partial enlarged view of the axial section of the capsule,
  • the figure 3A is an enlarged view of detail I of the Figure 2B ,
  • the figure 3B is an enlarged view of detail II of the Figure 2B ,
  • the figure 4 is a half-cut of the interlocking of two capsules.

Description d'un mode de réalisation de l'inventionDescription of an embodiment of the invention

Selon la figure 1, l'invention a pour objet une capsule C hermétique, c'est-à-dire non pré-percée, destinée à recevoir une substance pour préparer une boisson telle que du café ou une infusion. Cette capsule C selon l'orientation de la figure 1, a un fond 1 par lequel arrive le fluide chaud (eau chaude ou mélange d'eau chaude et de vapeur) pour la préparation de la boisson. Le fond 1 est relié à la paroi latérale 3 par une base conique 2. La paroi latérale 3 se compose d'un cylindre de base 31 rejoignant une paroi conique 33 par une jonction conique 32. La paroi conique 33 se poursuit par un rebord 4. Intérieurement le haut de la paroi conique 33 a des nervures périphériques 34 servant de nervures d'accrochage pour extraire la capsule du moule d'injection. Ces nervures 34 n'interviennent pas dans le fonctionnement ultérieur de la capsule c'est-à-dire son remplissage avec une poudre de substance (café, thé) ou lors de la mise en place et de l'utilisation de la capsule dans une machine de préparation de boissons.According to figure 1 The subject of the invention is a hermetically sealed, that is to say not pre-drilled, capsule intended to receive a substance for preparing a beverage such as coffee or an infusion. This capsule C according to the orientation of the figure 1 , has a bottom 1 through which the hot fluid (hot water or mixture of hot water and steam) arrives for the preparation of the drink. The bottom 1 is connected to the side wall 3 by a conical base 2. The side wall 3 consists of a base cylinder 31 joining a conical wall 33 by a junction conical 32. The conical wall 33 is continued by a flange 4. Internally the top of the conical wall 33 has peripheral ribs 34 serving as hooking ribs for extracting the capsule from the injection mold. These ribs 34 are not involved in the subsequent operation of the capsule that is to say its filling with a substance powder (coffee, tea) or during the establishment and use of the capsule in a beverage preparation machine.

Les figures 2A, 2B, 2C montrent de façon plus détaillée les différents éléments de la structure de la capsule symétrique en rotation par rapport à son axe (xx). La vue de côté et la vue en coupe axiale (fig. 2A, 2B) montrent notamment la forme du fond plat 1 ayant en son centre (axe xx) un dôme rentrant 11 de rigidification. Le fond plat 1 se poursuit en remontant par le cône de base 2 qui fait, avec le fond 1, un angle de l'ordre de 30 à 45°.The FIGS. 2A, 2B, 2C show in more detail the different elements of the symmetrical capsule structure in rotation with respect to its axis (xx). The side view and the axial section view ( Fig. 2A, 2B ) show in particular the shape of the flat bottom 1 having in its center (axis xx) a reentrant dome 11 of stiffening. The flat bottom 1 continues upwards through the base cone 2 which, with the bottom 1, an angle of the order of 30 to 45 °.

Le cône de base 2 rejoint le cylindre de base 31 rigidifiant la capsule près du fond. Le cylindre 31 est relié par l'intermédiaire de la jonction conique 32 à la paroi conique 33. La jonction conique 32 a une plus forte conicité que la paroi conique 33 pour absorber sur une courte hauteur, la différence de diamètre par rapport au cylindre 31 qui permet l'emboitement tout en restant, par la paroi latérale 3, dans une enveloppe tronconique. Intérieurement, la jonction 32 du cylindre de base 31 et la paroi conique 33, est munie de consoles d'emboitement 35 dont le côté montant 351 prolonge la surface intérieure du cylindre 31 et le côté supérieur 352 forme une surface d'appui d'emboitement.The base cone 2 joins the base cylinder 31 stiffening the capsule near the bottom. The cylinder 31 is connected through the conical junction 32 to the conical wall 33. The conical junction 32 has a greater conicity than the conical wall 33 to absorb over a short height, the difference in diameter with respect to the cylinder 31 which allows the nesting while remaining, through the side wall 3, in a frustoconical envelope. Internally, the junction 32 of the base cylinder 31 and the conical wall 33, is provided with interlocking brackets 35 whose rising side 351 extends the inner surface of the cylinder 31 and the upper side 352 forms a nesting bearing surface. .

La surface intérieure du cylindre 31 est munie d'une nervure de rigidification 311. La figure 2C montre tout particulièrement la gorge intérieure 11 avec ses côtés 121, 123 et le voile 122. Cette figure met également en évidence la répartition des consoles d'emboitement 34.The inner surface of the cylinder 31 is provided with a stiffening rib 311. Figure 2C shows particularly the inner groove 11 with its sides 121, 123 and the web 122. This figure also highlights the distribution of interlocking brackets 34.

Comme le montrent de façon plus détaillée les figures 3, 3A, 3B, le dessus 41 du rebord 4 est plat pour recevoir l'opercule 5 et le dessous est bordé par une couronne de rigidification 42. Près de la jonction du rebord 4 et de la paroi 3, le dessous a une couronne extérieure 43 de section triangulaire et une couronne intérieure 44 également de section triangulaire entre lesquelles il y a une lèvre d'étanchéité 45. Cet espace entre la couronne extérieure 43 et la couronne intérieure 44 reçoit le bord P représenté systématiquement de la chambre cylindrique du piston de la machine. Le rebord 4 de la capsule est ainsi guidé pour recevoir de manière appropriée le bord périphérique du piston qui se positionne entre la couronne extérieure 43 et la couronne intérieure 44 en écrasant la lèvre d'étanchéité 45, l'ensemble formant un joint en labyrinthe. La couronne extérieure est de section triangulaire tronquée ou en forme de trapèze avec un angle au sommet de l'ordre de 40°.As shown in more detail in figures 3 , 3A, 3B , the top 41 of the flange 4 is flat to receive the cap 5 and the bottom is bordered by a stiffening ring 42. Near the junction of the flange 4 and the wall 3, the underside has an outer ring 43 of triangular section and an inner ring 44 also of triangular section between which there is a sealing lip 45. This space between the outer ring 43 and the inner ring 44 receives the edge P systematically represented by the cylindrical chamber of the piston of the machine. The rim 4 of the capsule is thus guided to appropriately receive the peripheral edge of the piston which is positioned between the outer ring 43 and the inner ring 44 by crushing the sealing lip 45, the assembly forming a labyrinth seal. The outer ring is truncated triangular section or trapezoidal with an angle at the top of the order of 40 °.

La couronne intérieure 44 a également une section triangulaire à sommet arrondi avec un angle de l'ordre de 40° et l'intervalle des deux couronnes 43, 44 est occupée par la lèvre d'étanchéité 45 qui a également une section triangulaire à sommet vif avec un angle de l'ordre de 40° de sorte que cette lèvre d'étanchéité 45 relativement haute, peut être écrasée avec un bon contact contre le bord P par ailleurs appuyé contre les couronnes 43, 44.The inner ring 44 also has a triangular section with a rounded top with an angle of the order of 40 ° and the interval between the two rings 43, 44 is occupied by the sealing lip 45 which also has a triangular section with a sharp top with an angle of the order of 40 ° so that the sealing lip 45 relatively high, can be crushed with good contact against the edge P also pressed against the rings 43, 44.

Selon les figures 2B, 3, 3B la gorge intérieure 12 du fond 1 a une section rectangulaire délimitée par un côté intérieur 121, un côté extérieur 123 et une paroi inférieure 122 en forme de voile d'épaisseur très faible, suffisante pour assurer la fermeture étanche résistant aux manipulations de la capsule tout en facilitant son perçage par les picots du piston, provoquer à ce moment la déformation du fond 1. La paroi en forme de voile 12 est à niveau extérieurement avec le restant du fond 1 de la capsule C. A titre d'exemple, le côté intérieur 121 et le côté extérieur 123 ont des rayons par rapport à l'axe de révolution xx de la capsule, par exemple d'une longueur de 5 mm pour le côté intérieur et de 7 mm pour le côté extérieur de façon à laisser une gorge 12 d'une largeur 4 de l'ordre de 2 mm correspondant à la largeur de la couronne enveloppe des picots du piston des machines recevant de telles capsules. Le voile 122 a une épaisseur de l'ordre de 1/5e de celle du fond 1. A titre d'exemple, le fond 1, plus épais que la paroi 3 a une épaisseur de l'ordre de 1 mm et le voila 122 une épaisseur de l'ordre de 0,2 mm.According to Figures 2B , 3 , 3B the inner groove 12 of the bottom 1 has a rectangular section delimited by an inner side 121, an outer side 123 and a lower wall 122 in the form of a veil of very small thickness, sufficient to ensure the tight closure resistant to handling of the capsule while by facilitating its drilling by the pins of the piston, cause at this time the deformation of the bottom 1. The wall-shaped sail 12 is level with the outside of the bottom of the bottom 1 of the capsule C. For example, the side inner 121 and outer side 123 have radii relative to the axis of revolution xx of the capsule, for example a length of 5 mm for the inner side and 7 mm for the outer side so as to leave a throat 12 of a width 4 of the order of 2 mm corresponding to the width of the crown surrounds the pins of the piston of the machines receiving such capsules. The web 122 has a thickness of the order of 1/5 e of that of the bottom 1. For example, the bottom 1, thicker than the wall 3 has a thickness of about 1 mm and voila 122 a thickness of the order of 0.2 mm.

La figure 3 montre de manière plus explicite les différentes parties constitutives de la capsule C déjà décrites, en particulier la ligne de réunion 321 entre la jonction conique 32 et la paroi conique 33 ainsi que la forme des consoles 35 ayant un côté montant 351 c'est-à-dire parallèle à l'axe xx et dans le prolongement de la paroi intérieure du cylindre 31 et un côté supérieur 352 dans un plan perpendiculaire à l'axe xx ; les deux côtés forment à leur intersection une arrête d'appui 353. Le côté supérieur 352 des consoles 35 forme également une surface d'appui périphérique.The figure 3 shows more explicitly the different constituent parts of the capsule C already described, in particular the joining line 321 between the conical junction 32 and the conical wall 33 as well as the shape of the brackets 35 having a rising side 351 that is to say parallel to the axis xx and in the extension of the inner wall of the cylinder 31 and an upper side 352 in a plane perpendicular to the axis xx; both sides form at their intersection a bearing stop 353. The upper side 352 of the brackets 35 also forms a peripheral bearing surface.

Selon les figures 3, 3B la jonction du fond plat 1 et de la paroi latérale 3 est renforcée par la forme très ouverte du cône de base 2 dont la paroi a sensiblement l'épaisseur de la paroi latérale 3. Ce cône de base 2 est muni d'une nervure intérieure 22 de section rectangulaire près de la jonction 23 avec le fond 1. Cette jonction 23 est rigidifiée par la gorge périphérique 24.According to figures 3 , 3B the junction of the flat bottom 1 and the side wall 3 is reinforced by the very open shape of the base cone 2 whose wall has substantially the thickness of the side wall 3. This base cone 2 is provided with an inner rib 22 of rectangular section near the junction 23 with the bottom 1. This junction 23 is stiffened by the peripheral groove 24.

Grâce à ces différentes formes de renforcements, la capsule est rigidifiée et le fond 1 résiste à la poussée des broches du piston et ne se déforme pas, évitant l'écrasement de la capsule, favorisant son percement par les picots du piston et permettant une meilleure compression du café c'est-à-dire pas de perte de pression et ainsi une meilleure extraction.Thanks to these different forms of reinforcement, the capsule is stiffened and the bottom 1 resists the thrust of the piston pins and does not deform, avoiding crushing of the capsule, favoring its piercing by the pins of the piston and allowing better coffee compression that is to say no loss of pressure and thus better extraction.

Enfin, le fond plat 1 facilite la tenue de la capsule debout sur son fond.Finally, the flat bottom 1 facilitates the holding of the capsule standing on its bottom.

La demi-coupe de la figure 4 montre l'emboitage de deux capsules vides C1, C2 mettant en évidence l'appui net du cône de base 2 sur les consoles 35 et plus particulièrement sur l'arrête 352 ou le bord supérieur 352. Cette vue montre également le léger retrait de l'arrête 21 entre le cône de base 2 et le cylindre 31 par rapport à la surface intérieure du cylindre 31 au-dessus de la console 35. Dans ces conditions, la capsule C2 s'appuie par son cône de base 2 en partie sur l'arrête 353 et en partie sur le côté supérieur 352 des consoles 35 ; sa paroi conique 33 est tenue sans coincement par la surface intérieure de la paroi conique 33 de la capsule C1. Grâce à cette géométrie des capsules, l'arrête 21 ne peut se coincer au niveau de la réunion 321 de la jonction 32 et de la paroi conique 33 de sorte que les capsules C1 et C2 se détachent facilement l'une de l'autre.The half-cut of the figure 4 shows the engagement of two empty capsules C1, C2 highlighting the net support of the base cone 2 on the consoles 35 and more particularly on the stop 352 or the upper edge 352. This view also shows the slight withdrawal of the 21 stops between the base cone 2 and the cylinder 31 relative to the inner surface of the cylinder 31 above the bracket 35. Under these conditions, the capsule C2 is supported by its base cone 2 partly on the stops 353 and partly on the upper side 352 of the brackets 35; its conical wall 33 is held without jamming by the inner surface of the conical wall 33 of the capsule C1. Due to this geometry of the capsules, the stop 21 can not get stuck at the meeting 321 of the junction 32 and the conical wall 33 so that the capsules C1 and C2 are easily detached from one another.

NOMENCLATURENOMENCLATURE

11
FondBackground
1111
DômeDome
1212
Gorge intérieureInner groove
121121
Paroi intérieureInterior wall
122122
Fond de la gorgeBottom of the throat
123123
Paroi extérieureOutside wall
22
Cône de baseBasic cone
2121
ArrêteStopped
2222
Nervure intérieureInner rib
2323
JonctionJunction
2424
Gorge périphériquePeripheral gorge
33
Paroi latéraleSide wall
3131
Cylindre de baseBasic cylinder
311311
Nervure périphériquePeripheral rib
3232
Jonction coniqueConical junction
321321
Ligne de réunionMeeting line
3333
Paroi coniqueConical wall
3434
Nervure périphériquePeripheral rib
3535
ConsoleConsole
351351
Côté montantAmount side
352352
Côté supérieurUpper side
353353
Arrête d'appuiStop support
44
RebordFlange
4141
Surface supérieureUpper surface
4242
Couronne de rigidificationCrown of stiffening
4343
Couronne extérieureOuter crown
4444
Couronne intérieureInner crown
4545
Lèvre d'étanchéitéSealing lip
55
Operculeoperculum
CVS
CapsuleCapsule
PP
Bord du pistonPiston edge
xxxx
Axe de la capsuleAxis of the capsule

Claims (11)

Capsule destinée à recevoir une substance pour la préparation d'une boisson lorsque la capsule est installée dans une machine de type machine à café ou à infusion pour y être tenue par un piston pendant le passage du liquide extracteur à travers la capsule et la substance qu'elle contient après le perçage du fond par les picots du piston répartis sur un cercle centré sur l'axe du logement de la capsule et ainsi de la capsule,
* la capsule ayant un fond (1), et une paroi latérale (3) s'inscrivant globalement dans un tronc de cône et un rebord (4) recevant un opercule (5) après chargement de la capsule avec la substance, capsule caractérisée en ce que - le fond plat (1) a une gorge intérieure (12), circulaire, centrée sur l'axe (xx) de la capsule et correspondant au cercle sur lequel se trouvent les picots du piston de la machine extraction, cette gorge (12) formant une réduction locale de l'épaisseur du fond laissant subsister seulement un voile de matière (123) et - la paroi latérale (3) globalement tronconique a une paroi cylindrique (33) sous le rebord (4) et un cylindre de base (31) proche du fond (1), rejoignant la paroi conique (33) par une jonction conique (32) et le fond (1) par un cône de base (2). Capsule for receiving a substance for the preparation of a beverage when the capsule is installed in a coffee machine or infusion machine to be held by a piston during the passage of the extracting liquid through the capsule and the substance it contains after the piercing of the bottom by the pins of the piston distributed on a circle centered on the axis of the housing of the capsule and thus of the capsule,
* the capsule having a bottom (1), and a side wall (3) being generally in a truncated cone and a flange (4) receiving a cap (5) after loading the capsule with the substance, capsule characterized in what - The flat bottom (1) has an inner groove (12), circular, centered on the axis (xx) of the capsule and corresponding to the circle on which are the pins of the piston of the extraction machine, this groove (12) forming a local reduction in the thickness of the bottom leaving only a web of material (123) and the generally frustoconical lateral wall (3) has a cylindrical wall (33) under the flange (4) and a base cylinder (31) close to the bottom (1), joining the conical wall (33) by a conical junction (32); ) and the bottom (1) by a base cone (2). Capsule hermétique selon la revendication 1,
caractérisée en ce que
la jonction conique (32) au-dessus du cylindre (31) de la paroi (3) comporte, sur sa surface intérieure, des consoles d'emboitement (35) ayant un côté montant (351) et un côté supérieur (352) se coupant en formant une arrête d'appui (353) constituant avec le côté supérieur (352), une surface d'appui périphérique sur laquelle s'appuie le cône de base (2) de la capsule vide emboîtée.Hermetic capsule according to claim 1,
characterized in that
the conical junction (32) above the cylinder (31) of the wall (3) has, on its inner surface, interlocking brackets (35) having a rising side (351) and an upper side (352) cutting by forming a support stop (353) constituting with the upper side (352), a peripheral bearing surface on which rests the base cone (2) of the empty capsule nested. Capsule hermétique selon la revendication 1,
caractérisée en ce que
l'arrête (21) à la réunion du cône de base (2) et du cylindre (31) est en retrait par rapport au prolongement du tronc de cône géométrique de la paroi conique (33).Hermetic capsule according to claim 1,
characterized in that
the stop (21) at the meeting of the base cone (2) and the cylinder (31) is set back from the extension of the geometric conical frustum of the conical wall (33). Capsule selon la revendication 1,
caractérisée en ce que
sur sa surface intérieure le cylindre de base (31) a une nervure de rigidification, périphérique (311).Capsule according to claim 1,
characterized in that
on its inner surface the base cylinder (31) has a peripheral stiffening rib (311). Capsule selon la revendication 1,
caractérisée en ce que
le fond (1) a une épaisseur augmentée par rapport à celle de la paroi latérale (3) notamment une épaisseur de l'ordre de 1 mm et le voile (123) de la gorge intérieure (12) a une épaisseur de l'ordre de 1/5ème de l'épaisseur du fond.Capsule according to claim 1,
characterized in that
the bottom (1) has an increased thickness relative to that of the side wall (3), in particular a thickness of the order of 1 mm and the web (123) of the inner groove (12) has a thickness of the order 1/5 th of the bottom thickness. Capsule selon la revendication 1,
caractérisée en ce que
la gorge intérieure (12) a une section rectangulaire (121, 122, 123).Capsule according to claim 1,
characterized in that
the inner groove (12) has a rectangular section (121, 122, 123). Capsule selon la revendication 6,
caractérisée en ce que
le côté intérieur (121) de la gorge (12) a un rayon de l'ordre de 5 mm et son côté extérieur (123) de la gorge a un rayon de l'ordre de 7 mm, le côté intérieur et le côté extérieur de la gorge étant relié par le voile (123).Capsule according to claim 6,
characterized in that
the inner side (121) of the groove (12) has a radius of the order of 5 mm and its outer side (123) of the groove has a radius of about 7 mm, the inner side and the outer side of the groove being connected by the web (123). Capsule selon la revendication 1,
caractérisée en ce que
le dessous du rebord (4) recevant le bord (P) du piston de la machine comporte une couronne de rigidification (42) et une couronne extérieure (43) définissant avec une couronne intérieure (44) près de la paroi latérale (3), un intervalle avec une lèvre d'étanchéité (45) également en forme de section triangulaire, pour former la surface de réception du bord (P) du piston.Capsule according to claim 1,
characterized in that
the underside of the rim (4) receiving the edge (P) of the piston of the machine comprises a stiffening ring (42) and an outer ring (43) defining with an inner ring (44) near the side wall (3), an interval with a sealing lip (45) also shaped triangular section, to form the receiving surface of the edge (P) of the piston. Capsule selon la revendication 8,
caractérisée en ce que
la couronne extérieure (43), la couronne intérieure (44) et la lèvre (45) ont une section triangulaire avec un angle au sommet de l'ordre de 40°.Capsule according to claim 8,
characterized in that
the outer ring (43), the inner ring (44) and the lip (45) have a triangular section with an apex angle of the order of 40 °. Capsule selon la revendication 1,
caractérisée en ce que
le cône de base (2) comporte près de sa jonction (23) avec le fond (1), une nervure intérieure (22) notamment de section rectangulaire.Capsule according to claim 1,
characterized in that
the base cone (2) has near its junction (23) with the bottom (1), an inner rib (22) in particular of rectangular section. Capsule selon les revendications 1 et 10,
caractérisée en ce que
la jonction du cône de base (2) et du fond (1) comporte une gorge périphérique (24).Capsule according to claims 1 and 10,
characterized in that
the junction of the base cone (2) and the bottom (1) has a peripheral groove (24).
EP15160322.2A 2014-03-24 2015-03-23 Capsule for preparing a beverage Not-in-force EP2923969B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU92411A LU92411B1 (en) 2014-03-24 2014-03-24 Capsule for the preparation of a drink

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EP2923969B1 EP2923969B1 (en) 2017-05-03

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AU (1) AU2014201947B2 (en)
BR (1) BR102015006538A2 (en)
ES (1) ES2636313T3 (en)
IL (1) IL237886A0 (en)
LU (1) LU92411B1 (en)

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WO2020095151A1 (en) * 2018-11-06 2020-05-14 Imper S.P.A. Disposable capsule for machines delivering infused beverages
US11504898B2 (en) 2017-10-27 2022-11-22 Kiefel Gmbh Method of thermoforming a foil, forming tool, thermoforming tool, installation for thermoforming, container and brewing container

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EP3181484A1 (en) * 2015-12-16 2017-06-21 Mühlemann IP GmbH Capsule cup of a coffee capsule
DE102016116959A1 (en) * 2016-09-09 2018-03-15 Xpressivo Ag Capsule with arch shape between capsule wall and capsule bottom
EP4209431A1 (en) * 2022-01-11 2023-07-12 Tchibo GmbH Portion capsule

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DE102018008119B4 (en) * 2017-10-27 2019-06-06 Kiefel Packaging B.V. OF A FILM OF THERMOFORMED TANKS, USE OF A METHOD FOR THERMOFORMS OF A FILM, USE OF A TOOLING TOOL
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AU2014201947A1 (en) 2015-10-08
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ES2636313T3 (en) 2017-10-05
IL237886A0 (en) 2015-11-30
LU92411B1 (en) 2015-09-25
EP2923969B1 (en) 2017-05-03

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