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EP4255826B1 - Capsule-dosette pour préparer une boisson dans une machine de préparation de boisson, système pour préparer une boisson et procédé et installation pour produire une capsule-dosette - Google Patents

Capsule-dosette pour préparer une boisson dans une machine de préparation de boisson, système pour préparer une boisson et procédé et installation pour produire une capsule-dosette Download PDF

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Publication number
EP4255826B1
EP4255826B1 EP21836374.5A EP21836374A EP4255826B1 EP 4255826 B1 EP4255826 B1 EP 4255826B1 EP 21836374 A EP21836374 A EP 21836374A EP 4255826 B1 EP4255826 B1 EP 4255826B1
Authority
EP
European Patent Office
Prior art keywords
capsule
flange
sealing
region
single serve
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
EP21836374.5A
Other languages
German (de)
English (en)
Other versions
EP4255826A2 (fr
EP4255826C0 (fr
Inventor
Marc KRÜGER
Günter EMPL
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.)
GCS German Capsule Solution GmbH
Original Assignee
GCS German Capsule Solution GmbH
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 GCS German Capsule Solution GmbH filed Critical GCS German Capsule Solution GmbH
Priority to EP24178138.4A priority Critical patent/EP4458727A3/fr
Priority to HRP20241516TT priority patent/HRP20241516T1/hr
Publication of EP4255826A2 publication Critical patent/EP4255826A2/fr
Application granted granted Critical
Publication of EP4255826B1 publication Critical patent/EP4255826B1/fr
Publication of EP4255826C0 publication Critical patent/EP4255826C0/fr
Active 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
    • B65D85/8064—Sealing means for the interface with the processing machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/02—Packaging of substances, e.g. tea, which are intended to be infused in the package
    • B65B29/022—Packaging of substances, e.g. tea, which are intended to be infused in the package packaging infusion material into capsules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/2878—Securing closures on containers by heat-sealing
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • 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 is based on a portion capsule for preparing a beverage in a brewing chamber of a beverage production machine, wherein the portion capsule has a base element with a cavity for receiving a beverage raw material and a capsule lid closing the cavity, wherein the base element comprises a capsule base, a circumferential flange and a capsule wall extending between the capsule base and the circumferential flange, wherein the flange has a sealing element formed integrally with the flange in the form of a sealing bead pointing away from the capsule lid, wherein the sealing bead comprises an inner flank and an outer flank, wherein the flange has a first flange region between the capsule wall and the inner flank and a second flange region between the outer free end of the flange and the outer flank.
  • portion capsules are known from the prior art.
  • the publication WO 2016 / 186 488 A1 such a generic portion capsule.
  • This portion capsule is intended to be inserted into a brewing chamber in which the capsule base is perforated in order to introduce brewing liquid in the form of hot water under pressure into the cavity.
  • This increases the pressure within the portion capsule, whereby the capsule lid is pressed against a relief or pyramid plate in the brewing chamber and is perforated or breaks open at the contact points when a predetermined pressure is reached.
  • the beverage created by the interaction between the introduced water and the beverage raw material, in particular roasted and ground coffee leaves the portion capsule through these perforation points in the capsule lid.
  • water or beverage flows through these portion capsules through the capsule base in the direction of the capsule lid.
  • This generic portion capsule is therefore fundamentally different from another type of portion capsule in which the flow is in the opposite direction. Direction, ie the water is introduced into the portion capsule through the capsule lid and the beverage leaves the portion capsule through the capsule bottom.
  • these types of portion capsules have a sealing element in the area of their flange, which seals against a brewing chamber element in the brewing chamber. It is desirable that the sealing element is made of the same material as the capsule body (also known as the base element) in order to keep the manufacturing costs for the portion capsule low and to encourage the disposal or recycling of portion capsules that have already been used.
  • Portion capsules with such sealing elements are described, for example, in the publications WO 2016/ 186 488 A1 and WO 2016 / 041 596 A1
  • the portion capsules disclosed there have an embossed sealing bead in their flange.
  • the sealing effect is to be achieved between the sealing bead and the brewing chamber element by a simple deformation of the sealing bead.
  • the expert knows another portion capsule with a circumferential sealing element from the publication EP 2 872 421 A1 or the printed matter US 2016/159563 A1 .
  • the aforementioned portion capsules all have in common that the sealing effect of their sealing elements is based on a strong deformation of themselves.
  • inner flanks with the flattest possible angle are used so that the brewing chamber element can act on the flank when the brewing chamber is closed, thus leading to a slight deformation of the sealing element.
  • the disadvantage of a sealing solution based on a deformation of the sealing element is that significantly increased forces are required to close the brewing chamber. The ease of use and the longevity of the beverage preparation machine are thus significantly increased.
  • the sealing elements known from the state of the art are designed asymmetrically. In the event of deformation, these sealing elements therefore tip sideways. This Although an increased sealing effect is achieved, the sideways tilting of the sealing elements regularly results in the problem that the brewing chamber element is clamped by the sealing element in such a way that the portion capsule can no longer be separated from the brewing chamber element after the brewing process without increased force. Ejecting the used portion capsule from the brewing chamber is therefore made considerably more difficult and significantly impairs ease of use.
  • portion capsules Another problem with the known portion capsules is the attachment of the capsule lid to the flange.
  • Such capsule lids are usually made at least partially of aluminum and are usually sealed to the flange along a circumferential sealing surface. This is not a problem, especially with portion capsules with a continuous flange, where the capsule lid can be attached over the entire surface or at least easily with a sufficiently large sealing surface.
  • portion capsules which, as described above, have a sealing bead formed in one piece with the flange.
  • the flat surface of the flange available for sealing is limited and it is difficult to achieve a reliable seal. If the seal on the capsule lid has even a few defects, liquid can escape through the capsule lid.
  • liquid can flow into the cavity of the sealing bead and remain there as dead volume.
  • this amount of liquid is missing from the desired total volume of the drink and, on the other hand, the liquid can also escape from the sealing bead after the brewing process and thus cause unwanted dripping from the portion capsule.
  • a portion capsule of the type mentioned at the outset which does not have the problems outlined in connection with the prior art.
  • a portion capsule is to be provided which ensures secure fastening of the capsule lid even when the portion capsule has a sealing bead.
  • a method for producing such a portion capsule is to be provided, as well as a system for producing such a portion capsule.
  • the object of the present invention is achieved with a portion capsule according to claim 1.
  • the first and/or the second fastening surface is a flat plane.
  • the first and/or the second fastening surface is formed in the shape of a ring, wherein the first fastening surface and the second fastening surface in particular have substantially the same radial extension.
  • the portion capsule according to the invention has the advantage over the prior art that the capsule lid is secured in a pressure-resistant and secure manner by securing it in at least two disparate areas. In particular, no liquid can get into the cavity formed by the sealing bead. It was surprising to the expert and was not to be expected that a secure attachment is also possible on two different and, when considered individually, small surfaces.
  • the base element is made in one piece from aluminum.
  • the sealing element which according to the invention is provided in one piece with the flange, is also made of aluminum in this case.
  • aluminum should also include aluminum laminates and other materials that contain at least aluminum.
  • materials that additionally have paints and/or coatings should also be included, whereby these can also include plastic materials, for example.
  • Aluminum is the preferred material for the portion capsule according to the invention, but alternatively the base element can also be made from a plastic material and/or a biodegradable material.
  • the sealing element is designed as a sealing bead in one piece with the flange and that a secure attachment of the capsule lid to the first flange area and the second flange area is possible.
  • the base element is preferably produced by cold or hot forming, in particular deep drawing, in which the sealing bead is integrally embossed into the flange.
  • the portion capsule is preferably frustoconical or cylindrical.
  • the capsule lid comprises an aluminum foil.
  • an aluminum foil is also understood to mean an aluminum laminate foil and/or an aluminum foil with a one- or two-sided coating and/or varnish.
  • the capsule lid can be provided in one or more layers and in particular also comprise a layer structure.
  • the beverage raw material provided in the cavity formed by the base element and sealed, in particular hermetically, by the capsule lid comprises roasted coffee granules, instant coffee, chocolate powder, tea blend, milk powder and/or the like.
  • the outer free end of the flange is rolled up, in particular flanged, in such a way that it forms a circumferential bead, wherein the bead preferably has a vertical extension relative to the flange greater than zero, particularly preferably on both sides of the flange, wherein very particularly preferably the vertical extension of the bead on the side of the flange facing away from the capsule lid is less than the vertical extension of the sealing bead and/or wherein the vertical extension of the bead on the side of the flange facing away from the capsule lid is less than on the side of the flange facing away from the capsule lid.
  • the bead is smaller than the sealing bead, particularly preferably on both sides of the flange.
  • the bead is formed substantially symmetrically to the flange, in particular with regard to its vertical extension.
  • the vertical extension of the bead on the side of the flange facing away from the capsule lid is greater than the vertical extension of the sealing bead and/or for the vertical extension of the bead on the side of the flange facing away from the capsule lid to be greater than on the side of the flange facing away from the capsule lid.
  • the bead is particularly preferably provided in such a way that no sealing effect is exerted during the preparation of the beverage.
  • Such a bead advantageously protects a user from unwanted injuries, particularly when the base element is made of aluminum.
  • the outer free end of the flange can be sharp and/or have production-related defects that result in a risk of injury to the user. This is avoided in a particularly advantageous manner by providing a bead, i.e. effectively a rounded outer free end of the flange.
  • the bead is formed in particular by rolling up the flange edge, wherein the flange edge is preferably rolled up in the direction of the capsule bottom.
  • the inner flank and the outer flank are designed symmetrically to one another.
  • they have the same angles and/or the same material thicknesses. This advantageously reinforces the inventive effect of a stable and reliable seal.
  • both the outer flank and the inner flank are at an angle of greater than 80 to less than 90 degrees, preferably from 81 to 89 degrees, particularly preferably from 83 to 87 degrees, very particularly preferably from 84 to 86 degrees and in particular substantially 85 degrees, to a horizontal plane running through the first flange region or the second flange region.
  • horizontal in the context of the present invention is to be understood in particular to refer to a conventional arrangement of the capsule in which the central longitudinal axis of the preferably rotationally symmetrical capsule is arranged vertically and the first and/or the second flange region are arranged perpendicular to this capsule axis.
  • the horizontal extent of the first and/or second flange region particularly preferably coincides with a horizontal extent of the first and/or second fastening surface. It has been shown that in this angle range, on the one hand, the deformation of the sealing bead can be reduced and the rigidity of the sealing bead can be increased because the angle is as steep as possible and the sealing bead thus ensures high stability against forces acting on the sealing bead perpendicular to the first and/or second fastening surface (also referred to as the vertical direction and thus in particular parallel to the central longitudinal axis of the portion capsule).
  • simple and cost-effective production of the portion capsule is possible because the angle is always smaller than a right angle. If there were a right angle on both flanks of the sealing bead, the inner flank and the outer flank, demolding the portion capsule from the molding or embossing tool during production of the portion capsule would be significantly more difficult.
  • the sealing bead is designed such that when the brewing chamber is closed, it is only deformed by a maximum of 30%, preferably by a maximum of 20%, particularly preferably by a maximum of 10% and very particularly preferably by a maximum of 5% of its total height perpendicular to the first and/or second flange region or to the first and/or second fastening surface.
  • the sealing bead is designed such that when a force of up to 100 N is applied to the sealing bead perpendicular to the first and/or second fastening surface, it is only deformed by a maximum of 30%, preferably by a maximum of 20%, particularly preferably by a maximum of 10% and very particularly preferably by a maximum of 5% of its height perpendicular to the first and/or second fastening surface.
  • the sealing bead is designed in such a way that when the brewing chamber is closed, it is deformed parallel to the first and/or second fastening surface only to the extent that its radius is aligned with a central longitudinal axis (around which the flange is arranged rotationally symmetrically) of the Portion capsule only moves parallel to the first and/or second fastening surface by a maximum of 10%, preferably by a maximum of 8%, particularly preferably by a maximum of 5% and most particularly preferably by a maximum of 4%.
  • This advantageously prevents the brewing chamber element from becoming jammed by the sealing bead tilting to the side, so that the brewed portion capsule can always be removed from the brewing chamber easily and without increased effort.
  • the sealing bead is therefore designed to be particularly rigid and stable such that when a force of up to 100 N is applied centrally to the sealing bead perpendicular to the first and/or second fastening surface, i.e. along the vertical direction, parallel to the central longitudinal axis of the portion capsule, which acts in particular flat on the tip of the sealing bead or on the inner and/or outer flank of the sealing bead or on a flat transition plane of the sealing bead, a reduced deformation of the sealing bead takes place.
  • the height of the sealing bead should be variable in particular by a maximum of 30%, preferably by a maximum of 20%, particularly preferably by a maximum of 10% and very particularly preferably by a maximum of 5%.
  • the tip of the sealing bead i.e. the transition area of the sealing bead, shifts or deforms by a maximum of 10%, preferably by a maximum of 8%, particularly preferably by a maximum of 5% and very particularly preferably by a maximum of 4% of its total radius from the central longitudinal axis of the portion capsule.
  • the total radius can be considered here, for example, to be the radius from the center of the sealing bead.
  • the angle between the inner and outer flank is preferably 5 to 15 degrees, particularly preferably 8 to 12 degrees and very particularly preferably substantially 10 degrees.
  • the first fastening surface and the second fastening surface each have a substantially horizontal extension.
  • the extension of the first and/or second fastening surface coincides with the extension of the first or second flange region in the region of the respective fastening surface.
  • the first fastening surface has a, in particular horizontal, Surface section of the first flange area on the side of the flange facing the capsule lid and/or if the second fastening surface corresponds to a, in particular horizontal, surface section of the second flange area on the side of the flange facing the capsule lid.
  • a horizontal extension of the fastening surfaces enables a conventional fastening by sealing using a flat sonotrode in a particularly advantageous manner.
  • the base element has a preferably constant, but at least average material thickness of between 0.05 mm and 0.3 mm, preferably between 0.08 mm and 1.8 mm, particularly preferably between 0.09 mm and 1.5 mm and very particularly preferably essentially 0.11 mm.
  • the base element preferably has the above-mentioned material thickness at least in the region of the sealing bead, the capsule wall, the capsule base and/or the flange, in particular the first and/or second flange region.
  • the first fastening surface and the second fastening surface are vertically spaced from one another, wherein preferably the first fastening surface has a smaller vertical distance from the capsule base than the second fastening surface.
  • this also applies accordingly to the first and second flange areas.
  • a portion capsule is provided whose flange has two, in particular horizontal, sections at different heights. This is particularly advantageous because, due to manufacturing reasons, a minimal offset between the first flange area and the second flange area often cannot be avoided.
  • first fastening surface of the first flange area is very small, so that a secure fastening was not to be expected.
  • first flange area and the second flange area are at the same height. This has the advantage that when the brewing chamber is closed, there is no indirect displacement or deformation of the sealing bead as the first flange area and the second flange area deform or shift relative to each other in the vertical direction. Instead, both flange areas can support themselves on the closure element of the brewing chamber and thus build up a suitable counterforce to avoid any significant deformation of the sealing bead.
  • the vertical distance between the fastening surfaces and/or the first and second flange region is less than three times the thickness of the flange in the region of the first and/or second fastening surface or the first and/or second flange region, preferably less than 0.035 mm, particularly preferably less than 0.030 mm, in particular a maximum of 0.025 mm.
  • the vertical offset is most preferably less than twice the material thickness and even more preferably less than one material thickness.
  • the material thickness is in particular the material thickness of the base element in the region of the first and/or second flange region, in particular measured vertically to the extension in the aforementioned region. This makes it possible in a particularly advantageous manner for a certain tolerance of the heights of the flange regions to exist due to production and yet a secure and tight fastening of the capsule lid is ensured.
  • the first fastening surface and the second fastening surface are provided in such a way that there is no fluid connection between the cavity of the portion capsule and the cavity existing between the capsule lid and the sealing bead.
  • the fastening of the capsule lid in the first flange area is designed to be fluid-tight via the first fastening surface. This advantageously provides a water- and air-tight portion capsule.
  • a transition region extends between the inner flank and the outer flank, wherein the transition region is preferably curved or has a transition plane extending parallel to the first flange region and/or the second flange region.
  • the transition plane is horizontal.
  • the curved design of the transition region has the advantage that the sealing bead gains stability and thus deformation can be prevented even more effectively.
  • the flat design of the transition region has the advantage that the sealing bead is flatter and therefore engages less deeply into the recess of the sealing contour of the receiving element of the brewing chamber, so that less force is exerted on the sealing bead when the brewing chamber is closed. In addition, the risk of the brewing chamber part becoming trapped is lower with the flat sealing bead.
  • the transition region has an extension in the radial direction of 0.05 mm to 0.20 mm, preferably from 0.07 mm to 0.17 mm, particularly preferably from 0.10 mm to 0.14 mm, in particular of 0.12 mm.
  • the transition region has a straight connection region which has a width of between 0.05 mm to 0.20 mm, preferably from 0.07 mm to 0.17 mm, particularly preferably from 0.10 mm to 0.14 mm and in particular of 0.12 mm.
  • the portion capsule has a radius of 0.03 mm to 0.20 mm, preferably 0.06 mm to 0.15 mm and particularly preferably 0.09 mm to 0.13 mm, in particular 0.11 mm, in the transition from the outer flank to the second flange region and/or in the transition from the inner flank to the first flange region.
  • the preferred dimensioning of the sealing bead described above means that the sealing bead has sufficient stability so that no deformation of the same occurs during the closing of the brewing chamber and/or the brewing of the capsule in the brewing chamber.
  • both the inner flank and the outer flank each have a straight contact area that extends between the flange and the transition area.
  • the term "in the radial cross section” means that one looks at a sectional view of the flange contour along the circumferential direction of the circumferential flange contour. The plane of the sectional view is therefore spanned by the vertical direction and the radial direction, as in the Figures 3 to 5 illustrated.
  • the straight contact area has a length of 0.1 mm to 1.5 mm, preferably 0.3 mm to 1.3 mm, particularly preferably 0.5 mm to 1.0 mm and very particularly preferably 0.7 mm to 0.9 mm. Simulations and experiments have shown that an optimal seal between the sealing contour of the brewing chamber element and the flange can be achieved with a straight contact area of the lengths mentioned.
  • the portion capsule has a radius of 0.05 mm to 0.35 mm, preferably 0.10 mm to 0.30 mm, and particularly preferably 0.21 mm, in the transition from the straight contact region to the transition region on the side facing the capsule lid. According to a preferred embodiment of the present invention, it is provided that the portion capsule has a radius of 0.05 mm to 0.35 mm, preferably 0.10 mm to 0.30 mm, and particularly preferably 0.21 mm, in the transition from the outer flank to the transition region on the side facing the capsule lid.
  • the height of the sealing bead perpendicular to the sealing plane is between 0.6 mm and 1.3 mm, preferably between 0.3 mm and 0.6 mm, and particularly preferably between 0.9 and 1.0 millimeters.
  • the preferred dimensioning of the sealing bead described above results in the sealing bead having sufficient stability to prevent it from being severely deformed during the closing of the brewing chamber and/or the brewing of the capsule in the brewing chamber.
  • the portion capsule has one or more, preferably two, three, four, five, six, seven or eight concentrically encircling grooves on its capsule wall, in particular on the outside of the capsule wall.
  • the grooves can be designed as inwardly or outwardly directed depressions and/or elevations. Such grooves advantageously serve to stiffen or reinforce the capsule wall so that the portion capsule can withstand the pressures that occur during beverage production.
  • the portion capsule has a filter in the area of the capsule base.
  • the filter particularly preferably comprises a fleece material and/or a felt material.
  • the filter is designed in one or more layers.
  • the filter is disk-shaped, in particular round.
  • the filter is angular, for example square, hexagonal, octagonal or decagonal.
  • the filter is arranged in the area of the base.
  • the filter is arranged in sections or all around the Area of the capsule base is attached, in particular sealed, to the base and/or to the capsule wall and/or in a transition area between the capsule base and the capsule wall.
  • a further subject matter of the present invention is a system for preparing a beverage comprising a beverage production machine and a portion capsule according to the invention, wherein the beverage production machine has a brewing unit with a first brewing chamber part and a second brewing chamber part, wherein the first and/or the second brewing chamber part is movable relative to the other brewing chamber part between an approximate position in which the first and the second brewing chamber part form a closed brewing chamber, and an open position in which the first and the second brewing chamber part are spaced apart from one another for inserting or ejecting a portion capsule, wherein the first brewing chamber part comprises a receiving element for at least partially receiving the portion capsule and the second brewing chamber part comprises a closure element for the receiving element, wherein in the closed position the flange of the portion capsule is received in a form-fitting and sealing manner between an edge region of the receiving element and the closure element.
  • portion capsule according to the invention is part of the system according to the invention, which is why all advantages and further developments explained in connection with the portion capsule also apply equally to the system according to the invention - and to the other objects of the present invention - and vice versa.
  • a sealing contour is formed in the edge region of the receiving element for sealing engagement with the sealing bead, wherein the sealing contour comprises a circumferential recess and a circumferential sealing nose formed adjacent to the recess, wherein the recess is preferably arranged outside the sealing nose in the radial direction and wherein an outer sealing nose flank forms an inner wall of the recess and/or wherein in the closed position the sealing nose engages in the first flange region and the sealing bead engages in the recess in such a way that the sealing nose flank forms a line contact with the inner flank in radial cross-section.
  • the sealing contour comprises a circumferential recess and a circumferential sealing nose formed adjacent to the recess, wherein the recess is preferably arranged outside the sealing nose in the radial direction and wherein an outer sealing nose flank forms an inner wall of the recess and/or wherein in the closed position the sealing nose engages in the first flange region and the sealing bead engages in the reces
  • the sealing bead in the closed position is deformed by the sealing contour by only a maximum of 30%, preferably a maximum of 20%, particularly preferably a maximum of 10% and very particularly preferably a maximum of 5% of its height perpendicular to the first and/or second fastening surface. This advantageously limits the forces acting and thus reduces the risk of damage to the beverage production machine and/or the portion capsule.
  • the sealing contour has a further circumferential sealing nose, wherein the recess is arranged in the radial direction between the sealing nose and the further sealing nose, wherein the sealing nose is longer than the further sealing nose and wherein, in the closed position, the further sealing nose forms a point contact with the outer flank in the radial cross section.
  • a further subject of the present invention is a method for producing a portion capsule according to the invention, wherein in a first step a base element with a capsule base, a circumferential flange and a capsule wall extending between the capsule base and the circumferential flange is produced, wherein in a second step a sealing bead is formed in the flange, wherein in a third step the cavity of the base element is filled with at least one beverage raw material, wherein in a fourth step the base element is closed with a capsule lid, wherein the capsule lid is fastened, in particular sealed, to the flange along a first fastening surface and along a second fastening surface.
  • the method according to the invention advantageously provides a portion capsule which offers all the advantages mentioned in connection with the portion capsule according to the invention.
  • the fourth step comprises at least a first sub-step and a second sub-step, wherein in the first sub-step a fastening, in particular a sealing, is carried out by means of a fastening means, in particular a sealing tool, along the second fastening surface and wherein in the second sub-step a fastening, in particular a Sealing is carried out by means of a fastening means, in particular a sealing tool, along the first fastening surface and preferably the second fastening surface.
  • a fastening in particular a sealing
  • a fastening in particular a sealing
  • the first sub-step corresponds to pre-sealing.
  • pre-sealing means that a first fastening is carried out which is, for example, less firm than the fastening in the second sub-step, i.e., for example, it takes place with less force and/or in a shorter time.
  • the fastening means in the first and second sub-steps are at least partially identical. Partially identical should mean that, for example, individual elements of the fastening means are replaced, e.g. in the case of a sealing tool, the sonotrode and/or the receiving element are replaced.
  • a first fastening means in particular a first sealing tool
  • a second fastening means in particular a second sealing tool
  • the fastening in the first sub-step takes place with a sealing temperature of between 160°C and 260°C, particularly preferably between 190°C and 230°C and in particular 210°C.
  • the fastening in the first sub-step takes place with a sealing time of between 200 ms and 300 ms, particularly preferably between 230 ms and 270 ms and in particular 250 ms.
  • the fastening in the first sub-step takes place with a sealing force of between 250 N and 350 N, particularly preferably between 280 N and 320 N and in particular 300 N.
  • the fastening in the second sub-step takes place with a sealing temperature of between 160°C and 260°C, particularly preferably between 190°C and 230°C and in particular 210°C.
  • the fastening in the second sub-step takes place with a sealing time of between 300 ms and 600 ms, particularly preferably between 400 ms and 500 ms and in particular 450 ms.
  • the fastening in the second sub-step takes place with a sealing force of between 700 N and 1100 N, particularly preferably between 850 N and 950 N and in particular 900 N.
  • the capsule lid is produced from a strip material, preferably cut and/or punched.
  • a, in particular circular, capsule lid is preferably punched from an aluminum foil.
  • the further sub-step is particularly preferably also carried out by the fastening means, in particular in one operation.
  • the capsule lid is punched out of an aluminum foil in one movement and then sealed onto the base element.
  • the capsule lid in particular as a blank, is fed to the fastening means. This simplifies the production of the portion capsule and shortens the production time. Possible positioning errors are also advantageously avoided.
  • the first step comprises a first sub-step, a second sub-step and preferably a third sub-step, wherein in the first sub-step a basic shape is produced from a strip material, in particular punched, wherein in the second sub-step a preform is produced such that the base element is formed from the basic shape, wherein in the third sub-step a bead is formed from the outer free end of the flange, in particular rolled and/or flanged.
  • the second sub-step is preferably carried out by means of a stamp.
  • circumferential, concentric grooves are formed in the capsule wall, at least on the outside.
  • the third step takes place under a modified atmosphere and/or that a nitrogen layer is applied to the bed of beverage raw material, in particular in such a way that no oxygen is present in the portion capsule after the fourth step.
  • a filter is introduced into the cavity and preferably attached to the base element, in particular in the area of the capsule base.
  • the filter particularly preferably comprises a nonwoven material and/or a felt material.
  • the filter is particularly preferably designed in one or more layers.
  • the filter is preferably disk-shaped, in particular round.
  • the filter is angular, for example square, hexagonal, octagonal or decagonal. It is preferably provided that the filter is arranged in the area of the base.
  • the filter is particularly preferably attached in sections or all around the base of the capsule and/or to the capsule wall and/or in a transition area between The filter is particularly preferably cut out by a tool in one operation, placed in the cavity and secured there, in particular sealed.
  • a further subject matter of the present invention is a system for producing a portion capsule according to the invention, in particular according to a method according to the invention, with a forming station for forming a base element, a filling station for filling a cavity of the base element with at least one beverage raw material and a closing station for closing the base element with a capsule lid, wherein the closing station is a sealing station according to the invention.
  • FIGS 1 and 2 a schematic side view of a portion capsule 1 and a sectional view of a system comprising the portion capsule 1 and a part of a beverage manufacturing machine 13 for preparing a beverage according to an exemplary first embodiment of the present invention are shown.
  • the portion capsule 1 has a base element 2 which is, for example, cup-shaped and frustoconical and which has a capsule base 5 on its closed side and a circumferential flange 6 on its open side.
  • a capsule wall 7 extends around a cavity 3 between the capsule base 5 and the flange 6.
  • the portion capsule 1 is constructed rotationally symmetrically about its central longitudinal axis M, which defines a vertical direction Y. In the radial direction R, the flange 6, which is circular and thus circumferential, protrudes outwards beyond the capsule wall 7.
  • the flange 6 is firmly connected to a capsule lid 4 in the form of a lid foil, in particular an aluminum foil, which closes the cavity 3 on the open side of the base element 2.
  • the flange 6 has, according to the invention, a first fastening surface 100 facing the capsule lid 4 and a second fastening surface 200, which preferably extend approximately at right angles to the vertical direction Y.
  • the capsule lid 4 is sealed, welded or glued to the flange 6 in its edge region in the first and second fastening surfaces 100, 200.
  • the capsule lid 4 is preferably made of an aluminum or plastic material, which can each also include laminates.
  • the cavity 3 is formed within the base element 2 and is filled with beverage raw material, for example coffee roast granulate, instant coffee, chocolate powder, tea blend, milk powder and/or the like (for reasons of clarity, the beverage raw material is not shown) and which is closed by the capsule lid 4.
  • beverage raw material for example coffee roast granulate, instant coffee, chocolate powder, tea blend, milk powder and/or the like (for reasons of clarity, the beverage raw material is not shown) and which is closed by the capsule lid 4.
  • the cup-shaped design of the base element 2 is preferably produced by thermoforming, for example deep drawing using negative pressure, positive pressure and/or a movable stamp.
  • the base element 2 is preferably designed as a deep-drawn aluminum part.
  • the base element 2 it would also be conceivable for the base element 2 to be designed as a plastic part made of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) or polyethylene terephthalate (PET).
  • the portion capsule 1 is produced by means of an injection molding process, in particular in a single-component, multi-component or in-mold process.
  • a two-component process is particularly preferred as a multi-component process, in which an aluminum layer, in particular with a layer thickness of 90 ⁇ m, is provided with a layer of PP, in particular with a layer thickness of 30 ⁇ m.
  • the PP layer is particularly preferably arranged on one or both sides of the aluminum layer, in particular on the inside of the base element 2 and/or the cavity 3. This advantageously enables a better, PVC-free, connection between the flange 6 and the capsule lid 4.
  • the portion capsule 1 is inserted in use in a beverage manufacturing machine 13 into a brewing unit.
  • the brewing unit comprises a first brewing chamber part and a second brewing chamber part, wherein the first or the second brewing chamber part is movable relative to the other brewing chamber part between an approximate position in which the first and the second brewing chamber part form a closed brewing chamber 12 and an open position in which the first and the second brewing chamber part for inserting or ejecting the portion capsule 1 are spaced apart from each other and is movable.
  • the first brewing chamber part is designed as a cup-shaped receiving element 21, which largely receives the portion capsule 1, especially when the brewing chamber 12 is in the closed position.
  • the second brewing chamber part is designed as a closure element 22 for the receiving element 21.
  • the flange 6 of the portion capsule 1 is sealingly clamped between an edge region 23 of the receiving element 21 and the closure element 22.
  • the capsule lid 4 and the capsule base 5 are perforated one after the other or simultaneously.
  • the one or more perforation openings in the capsule base 5 are formed in particular by one or more perforation tips on the receiving element 21 during the closing of the brewing chamber 13, while the perforation openings in the capsule lid 4 are preferably created by perforation structures in the base of the closure element 22 during the closing of the brewing chamber 12 or only by the pressure build-up inside the portion capsule 1 during the beverage production process.
  • Extraction liquid is introduced into the cavity 3 under pressure through one or more perforation openings in the capsule base 5.
  • the interaction between the extraction liquid and the raw beverage material produces the desired beverage, which leaves the portion capsule 1 through the perforation openings in the capsule lid 4 and is fed into a beverage container.
  • An optional filter medium can be used to filter any particles of the raw beverage material out of the beverage and retain them in the portion capsule 1.
  • the multi-perforated capsule lid 4 functions as the filter element.
  • Figures 3 to 5 are detailed views of the Figures 1 and 2 illustrated portion capsule 1 according to an exemplary embodiment of the present invention.
  • the figures show the sectional view of the flange 6 on the right side of Figure 1 or 2 in an enlarged illustration.
  • the Figures 3 to 5 illustrated to scale and with more correct representation of the angular and longitudinal relationships.
  • the flange 6 shown extends essentially horizontally, i.e. parallel to the radial direction R, from the upper end of the capsule wall 7 to its free outer end, at which the flange 6 terminates with a bead 8.
  • the bead 8 comprises in particular a flange end rolled up in the direction of the capsule base 5.
  • the bead 8 protrudes in the vertical direction Y, in particular on both sides of the flange 6, wherein the flange 6 protrudes from the flange 6 on the underside by less than a sealing bead 9 and furthermore protrudes less or identically over the flange 6 on the upper side as on the underside.
  • the flange 6 Between the bead 8 and the end of the capsule wall 7, the flange 6 has the sealing bead 9, which is designed in the form of an indentation directed in the vertical direction Y away from the capsule lid 4 and concentrically in the circumferential direction around the central longitudinal axis M.
  • the sealing bead 9 has an inner flank 10 facing the capsule wall 7 and an outer flank 11 facing the bead 8.
  • the sealing bead 9 is formed in one piece from the flange 6 and, as can be seen in the figures, has essentially the same thickness as the capsule wall 7 and/or a first flange region 18 between the capsule wall 7 and the inner flank 10 and/or a second flange region 19 between the bead 8 and the outer flank 11.
  • transition region 14 in the form of the transition plane 15, which is particularly flat (i.e. straight) and runs parallel to the first and/or second flange region 18, 19.
  • the outer flank 11 runs to the second flange region 19 at an angle ⁇ of approximately 85 degrees.
  • the outer flank 11 has in particular a straight flank section 20, which preferably has a length between 0.5 mm and 0.9 mm.
  • the second flange region 19 preferably has a length of 0.2 mm to 0.8 mm.
  • the flange 6 Between the inner flank 10 and the upper end of the capsule wall 7, the flange 6 has a first flange region 18.
  • the first flange region 18 is designed to be straight and horizontal in radial cross-section, at least in sections.
  • the straight region has a length of 0.07 mm to 0.09 mm.
  • the inner flank 10 has a straight contact area 16 in the radial cross section, ie the straight contact area 16 is the length of the straight line between the two transitions along the inner flank 10.
  • the length of the contact area 16 in the present example is preferably 0.5 mm to 0.9 mm.
  • the angle ⁇ between the inner flank 10 or the straight contact region 16 and the first flange region 18 is substantially 85 degrees.
  • the angle between the inner and outer flanks 10, 11 is thus preferably 5 to 15 degrees, particularly preferably 8 to 12 degrees and most preferably substantially 10 degrees.
  • the first flange area 18 and the second flange area 19 are at the same height in the vertical direction Y.
  • the height 17 of the sealing bead 9 corresponds to the total extension of the sealing bead 9 from the underside of the first and second flange areas 18, 19 to the underside of the flange 6 in the area of the transition plane 15. This height 17 is between 0.9 mm and 1.0 mm perpendicular to the first or second flange area 18, 19.
  • the material thickness of the aluminum in the area of the flange 6 is preferably between 0.1 mm and 0.13 mm, in particular substantially 0.11 mm or 0.12 mm.
  • the edge region 23 of the receiving element 21, which is in sealing engagement with the flange 6 of the portion capsule 1, is not shown.
  • the edge region 23 comprises a sealing contour for sealing engagement with the sealing bead 9.
  • the sealing contour has a recess running around the circumference and a sealing nose formed adjacent to the recess and also running around the circumference. Viewed in the radial direction R, the recess is arranged outside the sealing nose, so that an outer sealing nose flank of the sealing nose forms an inner wall of the recess.
  • the sealing nose engages in the first flange area 18, while the sealing bead 9 engages in the recess.
  • This contact 16 is preferably present all the way around in the circumferential direction and thus forms the actual seal between the flange 6 and the receiving element 21, so that little or no extraction liquid can flow past the beverage raw material to the outlet of the brewing chamber 12.
  • the apex of the sealing nose optionally touches the underside of the first flange area 18, while the underside of the transition plane 15 optionally touches the bottom of the recess.
  • the design and dimensioning of the sealing bead 9 described above means that the sealing bead 9 does not deform significantly when the brewing chamber 12 is closed and/or when the beverage is brewed.
  • the sealing is mainly achieved by the circumferential contact 16, which is subjected to relatively high forces due to the rigidity of the sealing bead 9.
  • the sealing bead 9 is designed such that when the brewing chamber 12 is closed and/or the portion capsule 1 is brewed, it is only deformed by a maximum of 30%, preferably by a maximum of 20%, particularly preferably by a maximum of 10% and very particularly preferably by a maximum of 5% of its height 17 perpendicular to the first and/or second flange region 18, 19.
  • the sealing bead 9 is thus designed such that when a force of up to 100 N is applied to the sealing bead 9 perpendicular to the first and/or second flange region 18, 19, it is only deformed by a maximum of 30%, preferably by a maximum of 20%, particularly preferably by a maximum of 10% and very particularly preferably by a maximum of 5% of its height 17 perpendicular to the first and/or second flange region 18, 19. This is the only way to ensure sufficient force is available for the contact 16.
  • the height 17 of the sealing bead 9 is changed in particular by a maximum of 0.2 mm, preferably by a maximum of 0.15 mm, particularly preferably by a maximum of 0.1 mm and very particularly preferably by a maximum of 0.05 mm in the vertical direction Y when the brewing chamber 12 is closed and/or the portion capsule 1 is brewed.
  • the sealing bead 9 is only moved in the radial direction R and not in the vertical direction Y.
  • the sealing bead 9 is also designed to be so rigid that no excessive lateral displacement or deformation occurs in the radial direction R. It is provided that the sealing bead 9 is designed in such a way that when the brewing chamber 12 is closed, it is preferably only deformed or displaced parallel to the first and/or second flange region 18, 19 to such an extent that its radius, relative to a central longitudinal axis M of the portion capsule 1, only shifts parallel to the first and/or second flange region 18, 19 by a maximum of 5%, so that the portion capsule 1 can be easily removed from the brewing chamber 12 again after brewing and the sealing nose does not jam with the laterally tilting sealing bead 9.
  • the tip of the sealing bead 9, i.e. the transition region 14 of the sealing bead 9, is displaced or deformed in the radial direction R by a maximum of 0.2 mm, preferably by a maximum of 0.15 mm, particularly preferably by a maximum of 0.1 mm and very particularly preferably by a maximum of 0.05 mm.
  • Figure 4 is a detailed view of the Figures 1 and 2 illustrated portion capsule 1 according to an exemplary further embodiment of the present invention.
  • the Figure 4 shows the sectional view of the sealing bead 9 (in the same orientation as Figure 3 , i.e. on the left the capsule wall 7 and on the right the bulge 8) in an enlarged illustration.
  • transition region 14 is designed as a curved transition region and not as a straight, flattened transition plane 15.
  • the straight contact region 20 has a length of 0.5 mm to 0.6 mm, in particular 0.53 mm, on the outer flank 11.
  • the straight contact region 16 has a length of 0.4 mm to 0.55 mm, in particular 0.473 mm, on the inner outer flank 10.
  • the angle between the inner and outer flanks 10, 11 is preferably 5 to 15 degrees, particularly preferably 8 to 12 degrees and most preferably substantially 10 degrees.
  • Figure 5 is a detailed view of the Figures 1 and 2 illustrated portion capsule 1 according to an exemplary further embodiment of the present invention.
  • the Figure 5 shows the sectional view of the sealing bead 9 (in the same orientation as the Figure 3 and 4 , i.e. on the left the capsule wall 7 and on the right the bulge 8) in an enlarged illustration.
  • the radius in the transition between the capsule wall 7 and the first flange region 18 is between 0.49 mm and 0.51 mm, in particular 0.50 mm.
  • the first flange region 18 comprises a first fastening surface 100 in which the capsule lid 4 is connected to the flange 6, in particular is sealed thereto.
  • the second flange region 19 also comprises a second fastening surface 200 in which the capsule lid 4 is connected to the flange 6, in particular is sealed thereto.
  • the capsule lid 4 is therefore connected to the flange 6 in at least two fastening surfaces 100, 200 according to the invention.
  • These fastening surfaces 100, 200 are preferably disparate, i.e. different from one another, in particular without an intersection, and are arranged in the first and second flange regions 18, 19, i.e. in flange regions on both sides of the sealing bead 9.
  • the first and second fastening surfaces 100, 200 are essentially circular in shape.
  • the circular rings have essentially the same diameter.
  • the fastening surfaces 100, 200 are arranged horizontally and essentially at the same height, corresponding to the flange areas 18, 19.
  • the first flange area 18 and the second flange area 19 are at different heights. This is possible for manufacturing reasons, among other things.
  • the first flange area 18 is between 0.020 mm and 0.030 mm, in particular up to 0.025 mm lower, i.e. arranged at a smaller distance from the capsule base 5 than the second flange area 19.
  • the capsule cover 4 is connected to the flange 6 via both the first fastening surface 100 and the second fastening surface 200.
  • the radius at the transitions between the first flange region 18 and the inner flank 10 and the second flange region 19 and the outer flank 11 is between 0.10 mm and 0.12 mm, in particular 0.11 mm, whereas the radius at the transitions between the inner flank 10 and the transition region 14, which is also flat here, and the outer flank 11 is preferably between 0.20 mm and 0.22 mm, in particular 0.21 mm.
  • the radii described above are, as shown in the figure, each measured on the side facing away from the capsule lid 4. The difference to the corresponding radii on the side facing the capsule lid 4 lies, as the person skilled in the art will understand, in the material thickness at this point, in this case in particular 0.11 mm or 0.12 mm.
  • the transition between the second flange region 19 and the bead 8 is preferably between 0.19 mm and 0.21 mm, in particular 0.20 mm.
  • the height 17 of the sealing bead 9 is between 0.90 mm and 0.98 mm, in particular 0.90 mm, in the region of the first flange region and between 1.00 mm and 0.90 mm, in particular 0.90 mm, in the region of the second flange region.
  • the bead 8 has in particular a vertical extension of between 1.20 mm and 1.40 mm, in particular 1.30 mm.
  • the transition plane 15 has a radial extension of preferably between 0.10 mm and 0.14 mm, in particular 0.12 mm.
  • a sealing tool in particular a first sealing tool 24, according to an exemplary embodiment of the present invention is shown.
  • Such a sealing tool serves to seal the capsule lid 4 to the flange 6 of the portion capsule 1.
  • sealing tools 24, 25 are basically already known, which is why only the differences to known sealing tools, in particular with regard to the portion capsule 1 according to the invention, will be discussed below.
  • the sealing tool 24 includes, among other things, a sonotrode 28, which generates heat in a targeted manner and thus locally heats the material of the capsule lid 4 and the flange 6 and creates a material-tight connection between the two. This creates a fluid-tight connection between the base element 2 and the capsule lid 4. Since pressure also plays a decisive role in addition to heat, the sealing tool 24 includes a receiving element 26, which receives the base element 2 and provides a counterforce to the force exerted by the sonotrode 28 on the underside of the flange 6 via suitable counterholding means 27 in the area of the first and/or second fastening surface 100, 200, so that there is no deformation of the flange and thus no defective portion capsule 1 and/or incomplete sealing of the capsule lid 4.
  • a sonotrode 28 which generates heat in a targeted manner and thus locally heats the material of the capsule lid 4 and the flange 6 and creates a material-tight connection between the two. This creates a fluid-tight connection between the base element 2 and
  • the sealing tool 24 is explained in more detail in connection with the following figures.
  • the sealing process takes place in two stages, wherein in a first sub-step the capsule lid 4 is initially only connected to the flange 6 in the second flange region 19 along the second fastening surface 200, and wherein in a second sub-step the capsule lid 4 is connected to the flange 6 both in the first flange region along the first fastening surface 100 and in the second flange region 19 along the second fastening surface 200.
  • the first sub-step corresponds in particular to a pre-sealing, i.e. a sealing process which, compared to the second sub-step, is carried out with at least one parameter reduced in amount, in particular sealing temperature, sealing time and/or sealing force.
  • the two sub-steps are carried out in different sealing tools, here a first sealing tool 24 and a second sealing tool 25.
  • the outer diameter of the sonotrode 28 of the first sealing tool 24 is preferably between 34.0 mm and 35.0 mm, in particular 34.5 mm.
  • Figure 7 a schematic detailed drawing of the first sealing tool 24 is shown in the area relevant here.
  • the first sealing tool 24 differs in that the counter-holding means 27 has two protruding areas, the upper surfaces of which lie below the first flange area 18 and the second flange area 19, respectively.
  • the counterholding means 27 can be provided in one piece or in multiple pieces.
  • the counterholding means 27 here comprises two plungers.
  • the inner plunger i.e. the plunger assigned to the first flange region 18 and the first fastening surface 100
  • the inner plunger is between 0.05 mm and 0.25 mm, preferably between 0.10 mm and 0.20 mm and in particular 0.15 mm higher than the outer plunger assigned to the second flange region 19 and the second fastening surface 200.
  • Both plungers have upper surfaces which are in contact with the first flange region 18 and the second flange region 19 and thus define the first and second fastening surfaces 100, 200.
  • the counterholding means 27 can be arranged so that the height is adjustable or fixed.
  • the first sealing tool 24 in the present case has an optional heat dissipation means 29 in the middle of the sonotrode 28.
  • This is a ceramic insert whose diameter is selected such that it covers the capsule lid 4 in the area of the interior of the portion capsule 1, i.e. above the cavity 3.
  • the heat dissipation means 29 ensures that the increased heat generated due to the two different sealing processes does not negatively affect the beverage raw material and/or the capsule lid 4 in this area.
  • the internal plunger for the receiving element 26 of the first sealing tool 24 is optional.
  • FIG 8 a second sealing tool 25 is now shown, which carries out the main sealing process (also referred to as post-sealing).
  • the second sealing tool 25 essentially corresponds to the first sealing tool 24, so that reference is made to the explanations with regard to Figures 6 and 7. This applies to both Figure 8 as well as for Figure 9 .
  • the sonotrode 28 of the second sealing tool 25 preferably has a larger diameter than the sonotrode 28 of the first sealing tool 24, particularly preferably between 34.3 mm and 35.2 mm and in particular 34.8 mm.
  • the sealing process of the second sub-step is now carried out with at least one parameter that is higher in magnitude, with a combination of a sealing temperature of preferably between 200°C and 220°C, in particular 210°C, a sealing time of preferably between 420 ms and 480 ms, in particular 450 ms, and a sealing pressure of preferably between 700 N and 1100 N, in particular 900 N, having proven particularly successful, which in the preferred embodiment of the sonotrode 28 of the second sealing tool 25 corresponds to a sealing pressure of approximately 6 bar.
  • the capsule lid is firmly and in particular fluid- and pressure-tightly attached to the flange 6, both along the first fastening surface 100 and the second fastening surface 200.
  • Figure 10 is a perspective sectional view of the first and/or second sealing tool 24, 25. Reference is made to the above statements regarding the Figures 6 to 9 referred to.
  • FIG 10 the structure of the sonotrode 28, in particular with regard to the heat dissipation means 29, according to the embodiment shown here, can be seen.
  • Figure 11 is a schematic detailed view of a cross section of the sealing tool 24, 25 according to an exemplary embodiment of the present invention similar to the illustrations in the Figures 7 and 9 shown.
  • grooves in this case four, can be seen in the capsule wall 7 of the portion capsule 1.
  • the Figures 12 and 13 show technical drawings of the receiving element 26 or the sonotrode 28 of the first sealing tool 24 according to the previously explained exemplary embodiment of the present invention.
  • the outer diameter of the receiving element 26 is preferably substantially 35 mm and the height is preferably 36 mm.
  • the sonotrode 28 in turn has, according to the embodiment shown here, an outer diameter of in particular 34.5 mm, wherein the heat dissipation means 29 in the sonotrode 28 has an outer diameter of 29.7 mm.
  • FIGS. 14 and 15 show technical drawings of the receiving element 26 or the sonotrode 28 of the second sealing tool 25 according to the exemplary embodiment of the present invention explained above, as well as a detailed drawing of the counter-holding means 27.
  • the detailed drawing shows the height difference between the plungers, with the inner plunger assigned to the first flange region 18 being 0.15 mm higher than the outer plunger.
  • the outer diameter of the receiving element 26 is preferably substantially 35 mm and the height is preferably 36.15 mm.
  • the sonotrode 28 in turn has, according to the embodiment shown here, an outer diameter of in particular 34.8 mm, wherein the heat dissipation means 29 in the sonotrode 28 has an outer diameter of 29.7 mm.
  • Figure 16 is a schematic detailed view of the portion capsule 1 according to another exemplary embodiment of the present invention in cross section.
  • the Figure 16 The embodiment shown essentially corresponds to the embodiments described in connection with the Figures 3 to 5 explained embodiments and in particular the Figure 5 illustrated embodiment, so that reference is made to the relevant explanations.
  • the transition from the capsule wall 7 to the first flange region 18 has a radius of preferably 0.30 mm to 0.50 mm on the side of the capsule lid 4.
  • the transition between the first flange region 18 and the inner flank 10 has a radius of preferably 0.11 mm to 0.36 mm, in particular on the side facing away from the capsule lid 4.
  • the sealing bead 9 has a height of preferably 0.82 mm to 0.90 mm between the transition region 14, which here is also a transition plane 15, i.e. has a flat extension at least in sections, in particular 0.12 mm long, and the first flange region 18.
  • the transition from the inner flank 10 to the transition plane 15 preferably has a radius of 0.23 mm to 0.33 mm, particularly on the side facing away from the capsule lid 4.
  • An angle ⁇ of 5° is preferably provided between an imaginary tip of the sealing bead 9 and a plumb line. This corresponds to an angle of 85° between a horizontal section of the first flange region 18 and the inner flank 10.
  • the sealing bead 9 is also constructed symmetrically here.
  • the virtual interior angle in an imaginary extension of the tip of the sealing bead 9 is 10°.
  • the transition from the transition plane 15 to the outer flank 11, in particular on the side facing away from the capsule lid 4 preferably has a radius of 0.23 mm to 0.33 mm.
  • the angle between the straight section of the outer flank 11 and a horizontal section of the second flange region 19 is preferably 85°.
  • the transition between the outer flank 11 and the second flange region 19 has a radius of preferably 0.11 mm to 0.36 mm, in particular on the side facing away from the capsule lid 4.
  • the sealing bead 9 preferably has a height of 0.90 mm to 1.00 mm between the transition plane 15 and the second flange region 19.
  • first flange region 18 and the second flange region 19 preferably lie on a horizontal plane, but due to tolerances, there may also be a slight horizontal offset of a maximum of 0.18 mm, i.e. in particular slightly more than one material thickness.
  • the transition between the second flange region 19 and the bead 8 preferably has a radius of 0.20 mm to 0.45 mm, wherein the bead 8 according to the embodiment shown has a radial extension of approximately 1 mm and a vertical extension, i.e. a total height, of preferably 1.25 mm to 1.45 mm, in particular 1.35 mm.

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Claims (22)

  1. Capsule-dosette (1) pour la préparation d'une boisson dans une chambre d'infusion (12) d'une machine de production de boissons (13), la capsule-dosette (1) présentant un élément de base (2) avec une cavité (3) pour recevoir une matière première de boisson et un couvercle de capsule (4) fermant la cavité (3), l'élément de base (2) comprenant un fond de capsule (5), une bride périphérique (6) et une paroi de capsule (7) s'étendant entre le fond de capsule (5) et la bride périphérique (6), la bride (6) présentant un élément d'étanchéité réalisé d'une seule pièce avec la bride (6) sous la forme d'une moulure d'étanchéité (9) s'éloignant du couvercle de capsule (4), la moulure d'étanchéité (9) comprenant un flanc intérieur (10) et un flanc extérieur (11), la bride (6) présentant une première zone de bride (18) entre la paroi de capsule (7) et le flanc intérieur (10) et une deuxième zone de bride (19) entre l'extrémité libre extérieure de la bride (6) et le flanc extérieur (11),
    le couvercle de capsule (4) étant fixé le long d'une première surface de fixation périphérique (100) dans la première zone de bride (18) et le long d'une deuxième surface de fixation périphérique (200) dans la deuxième zone de bride (19), caractérisée en ce qu'une zone de transition (14) s'étend entre le flanc intérieur (10) et le flanc extérieur (11), la zone de transition (14) présentant une extension en direction radiale de 0,05 mm à 0,20 mm, de préférence de 0,07 mm à 0,17 mm, de manière particulièrement préférée de 0,10 mm à 0,14 mm, notamment de 0,12 mm.
  2. Capsule-dosette (1) selon la revendication 1, caractérisée en ce que l'extrémité libre extérieure de la bride (6) est enroulée, notamment sertie, de manière à former un bourrelet périphérique (8), le bourrelet (8) présentant de préférence une extension verticale par rapport à la bride (6) supérieure à zéro, de manière particulièrement préférée des deux côtés de la bride (6), de manière tout particulièrement préférée l'extension verticale du bourrelet (8) sur le côté de la bride (6) détourné du couvercle de capsule (4) étant inférieure à l'extension verticale de la moulure d'étanchéité (9) et/ou l'extension verticale du bourrelet (8) sur le côté de la bride (6) tourné vers le couvercle de capsule (4) étant inférieure à celle sur le côté de la bride (6) détourné du couvercle de capsule (4).
  3. Capsule-dosette (1) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'aussi bien le flanc intérieur (10) que le flanc extérieur (11) sont orientés selon un angle (α, β) de plus de 80 à moins de 90 degrés, de préférence de 81 à 89 degrés, de manière particulièrement préférée de 83 à 87 degrés, de manière tout particulièrement préférée de 84 à 86 degrés et notamment d'essentiellement 85 degrés, par rapport à un plan horizontal passant par la première zone de bride (18) ou la deuxième zone de bride (19).
  4. Capsule-dosette (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la première surface de fixation (100) et la deuxième surface de fixation (200) présentent chacune une extension essentiellement horizontale.
  5. Capsule-dosette (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la première surface de fixation (100) et la deuxième surface de fixation (200) sont espacées verticalement l'une de l'autre, la première surface de fixation (100) présentant de préférence une distance verticale par rapport au fond de capsule (5) inférieure à celle de la deuxième surface de fixation (200).
  6. Capsule-dosette (1) selon la revendication 5, caractérisée en ce que la distance verticale entre les surfaces de fixation (100, 200) est inférieure à trois fois l'épaisseur de la bride (6) dans la zone de la première et/ou de la deuxième surface de fixation (100, 200), de préférence inférieure à 0,35 mm, de manière particulièrement préférée inférieure à 0,30 mm, de manière tout particulièrement préférée inférieure à 0,25 mm, de manière encore davantage préférée inférieure à 0,20 mm, notamment au maximum 0,018 mm.
  7. Capsule-dosette (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la première surface de fixation (100) et la deuxième surface de fixation (200) sont prévues de telle sorte qu'il n'y ait pas de communication fluidique entre la cavité (3) de la capsule-dosette et la cavité existante entre le couvercle de capsule (4) et la moulure d'étanchéité (9).
  8. Capsule-dosette (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que le flanc intérieur (10) et le flanc extérieur (11) sont réalisés symétriques l'un par rapport à l'autre.
  9. Capsule-dosette (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la zone de transition (14) est réalisée incurvée ou présente un plan de transition (15) s'étendant parallèlement à la première zone de bride (18) et/ou à la deuxième zone de bride (19).
  10. Capsule-dosette (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que l'élément de base (2) est fabriqué d'une seule pièce en aluminium.
  11. Capsule-dosette (1) selon l'une quelconque des revendications précédentes, caractérisée en ce que la capsule-dosette (1) présente un filtre dans la zone du fond de capsule (5).
  12. Système de préparation d'une boisson présentant une machine de production de boissons (13) et une capsule-dosette (1) selon l'une quelconque des revendications précédentes, la machine de production de boissons (13) présentant une unité d'infusion avec une première partie de chambre d'infusion et une deuxième partie de chambre d'infusion, la première et/ou la deuxième partie de chambre d'infusion pouvant être déplacée par rapport à l'autre partie de chambre d'infusion entre une position rapprochée, dans laquelle la première et la deuxième partie de chambre d'infusion forment une chambre d'infusion fermée (12), et une position ouverte, dans laquelle la première et la deuxième partie de chambre d'infusion sont espacées l'une de l'autre pour l'insertion ou l'éjection d'une capsule-dosette (1),
    la première partie de chambre d'infusion comprenant un élément de réception (21) pour recevoir au moins partiellement la capsule-dosette (1) et la deuxième partie de chambre d'infusion comprenant un élément de fermeture (22) pour l'élément de réception (21) ; dans la position fermée, la bride (6) de la capsule-dosette (1) étant reçue entre une zone de bord (23) de l'élément de réception (21) et l'élément de fermeture (22) par complémentarité de forme et de manière étanche.
  13. Système selon la revendication 12, caractérisé en ce qu'un contour d'étanchéité est réalisé dans la zone de bord (23) de l'élément de réception (21) pour l'engagement étanche avec la moulure d'étanchéité (9), le contour d'étanchéité comprenant un renfoncement périphérique et un ergot d'étanchéité périphérique réalisé au voisinage du renfoncement, le renfoncement étant de préférence agencé dans la direction radiale (R) à l'extérieur de l'ergot d'étanchéité et un flanc d'ergot d'étanchéité extérieur formant une paroi intérieure du renfoncement et/ou, dans la position fermée, l'ergot d'étanchéité s'engageant dans la première zone de bride (18) et la moulure d'étanchéité (9) s'engageant dans le renfoncement de telle sorte que le flanc d'ergot d'étanchéité réalise un contact linéaire (16) avec le flanc intérieur (10) en section transversale radiale.
  14. Procédé de production d'une capsule-dosette selon l'une quelconque des revendications 1 à 11, dans lequel, dans une première étape, un élément de base (2) avec un fond de capsule (5), une bride périphérique (6) et une paroi de capsule (7) s'étendant entre le fond de capsule (5) et la bride périphérique (6) est produit, dans une deuxième étape ou dans la première étape, une moulure d'étanchéité (9) est formée dans la bride (6), dans une troisième étape, la cavité (3) de l'élément de base (2) est remplie d'au moins une matière première de boisson, dans une quatrième étape, l'élément de base (2) est fermé par un couvercle de capsule (4), le couvercle de capsule (4) étant fixé, notamment scellé, à la bride (6) le long d'une première surface de fixation (100) et le long d'une deuxième surface de fixation (200).
  15. Procédé selon la revendication 14, dans lequel la quatrième étape comprend au moins une première sous-étape et une deuxième sous-étape, dans lequel, dans la première sous-étape, une fixation, notamment un scellement, est effectuée au moyen d'un moyen de fixation, notamment d'un outil de scellement (24, 25), le long de la deuxième surface de fixation (200), et, dans la deuxième sous-étape, une fixation, notamment un scellement, est effectuée au moyen d'un moyen de fixation, notamment d'un outil de scellement (24, 25), le long de la première surface de fixation (100) et de préférence de la deuxième surface de fixation (200).
  16. Procédé selon la revendication 15, dans lequel, dans une autre sous-étape de la quatrième étape, avant la première sous-étape, le couvercle de capsule (4) est produit à partir d'un matériau en bande, de préférence découpé et/ou estampé.
  17. Procédé selon l'une quelconque des revendications 14 à 16, dans lequel la première étape comprend une première sous-étape, une deuxième sous-étape et de préférence une troisième sous-étape, dans lequel, dans la première sous-étape, une forme de base est produite, notamment estampée, à partir d'un matériau en bande, dans la deuxième sous-étape, une préforme est produite de telle sorte que l'élément de base (2) est formé à partir de la forme de base, dans la troisième sous-étape, un bourrelet (8) est formé, notamment roulé et/ou serti, à partir de l'extrémité libre extérieure de la bride (6), la formation de la moulure d'étanchéité étant de préférence effectuée dans la deuxième ou la troisième sous-étape.
  18. Procédé selon l'une quelconque des revendications 14 à 17, dans lequel, dans une cinquième étape, qui est effectuée après la première étape et avant la troisième étape, un filtre est introduit dans la cavité (3) et est de préférence fixé à l'élément de base (2), notamment dans la zone du fond de capsule (5).
  19. Installation de production d'une capsule-dosette (1) selon l'une quelconque des revendications 1 à 11, notamment par un procédé selon l'une quelconque des revendications 14 à 18, avec un poste de formation pour former un élément de base (2), un poste de remplissage pour remplir une cavité (3) de l'élément de base (2) avec au moins une matière première de boisson et un poste de fermeture pour fermer l'élément de base (2) avec un couvercle de capsule (4), caractérisée en ce que le poste de fermeture est un poste de scellement pour fermer une capsule-dosette (1) avec un couvercle de capsule (4) pour produire la capsule-dosette (1) selon l'une quelconque des revendications 1 à 11 avec au moins un premier outil de scellement (24), le premier outil de scellement (24) étant configuré pour sceller le couvercle de capsule (4) le long de la deuxième surface de fixation (200) à la bride (6) et le premier outil de scellement (24) ou un deuxième outil de scellement (25) étant configuré pour sceller le couvercle de capsule (4) le long de la première surface de fixation (100) et de préférence de la deuxième surface de fixation (200) à la bride (6).
  20. Installation selon la revendication 19, caractérisée en ce que le premier outil de scellement (24) et/ou le deuxième outil de scellement (25) comprennent chacun au moins une sonotrode (28) et au moins un élément de réception (26), l'élément de réception (26) présentant une cavité ouverte pour recevoir la capsule-dosette (1), l'élément de réception (26) présentant en outre au moins un moyen de contre-appui (27), le moyen de contre-appui (27) étant prévu pour fournir une force antagoniste à la force exercée par la sonotrode (28), du côté de la bride (6) détourné du couvercle de capsule (4), notamment dans la zone de la première surface de fixation (100) et/ou de la deuxième surface de fixation (200).
  21. Installation selon la revendication 20, caractérisée en ce que l'élément de réception (26) présente au moins un moyen de contre-appui (27) dans la zone de la première surface de fixation (100), une surface supérieure du moyen de contre-appui (27) étant agencée plus haut d'au moins 0,05 mm, de préférence d'au moins 0,10 mm, notamment d'au moins 0,15 mm, en comparaison d'une surface supérieure du moyen de contre-appui (27) du premier outil de scellement (24) et/ou du deuxième outil de scellement (25) dans la zone de la deuxième surface de fixation (200).
  22. Installation selon l'une quelconque des revendications 20 ou 21, caractérisée en ce que la sonotrode (28) du premier et/ou du deuxième outil de scellement (24, 25) présente un moyen de dissipation de chaleur (29), notamment agencé au centre.
EP21836374.5A 2020-12-07 2021-12-07 Capsule-dosette pour préparer une boisson dans une machine de préparation de boisson, système pour préparer une boisson et procédé et installation pour produire une capsule-dosette Active EP4255826B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP24178138.4A EP4458727A3 (fr) 2020-12-07 2021-12-07 Capsule-dosette pour préparer une boisson dans une machine de préparation de boisson, système pour préparer une boisson et procédé et installation pour produire une capsule-dosette
HRP20241516TT HRP20241516T1 (hr) 2020-12-07 2021-12-07 Kapsula za jednokratno posluživanje za pripremu napitka u stroju za pripremu napitaka, sustav za pripremu napitka te postupak i instalacija za proizvodnju kapsule za jednokratno posluživanje

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020215443 2020-12-07
DE102020215636 2020-12-10
PCT/EP2021/084550 WO2022122718A2 (fr) 2020-12-07 2021-12-07 Capsule-dosette pour préparer une boisson dans une machine de préparation de boisson et procédé pour produire une capsule-dosette

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP24178138.4A Division EP4458727A3 (fr) 2020-12-07 2021-12-07 Capsule-dosette pour préparer une boisson dans une machine de préparation de boisson, système pour préparer une boisson et procédé et installation pour produire une capsule-dosette
EP24178138.4A Division-Into EP4458727A3 (fr) 2020-12-07 2021-12-07 Capsule-dosette pour préparer une boisson dans une machine de préparation de boisson, système pour préparer une boisson et procédé et installation pour produire une capsule-dosette

Publications (3)

Publication Number Publication Date
EP4255826A2 EP4255826A2 (fr) 2023-10-11
EP4255826B1 true EP4255826B1 (fr) 2024-08-14
EP4255826C0 EP4255826C0 (fr) 2024-08-14

Family

ID=79259416

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21836374.5A Active EP4255826B1 (fr) 2020-12-07 2021-12-07 Capsule-dosette pour préparer une boisson dans une machine de préparation de boisson, système pour préparer une boisson et procédé et installation pour produire une capsule-dosette
EP24178138.4A Pending EP4458727A3 (fr) 2020-12-07 2021-12-07 Capsule-dosette pour préparer une boisson dans une machine de préparation de boisson, système pour préparer une boisson et procédé et installation pour produire une capsule-dosette

Family Applications After (1)

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EP24178138.4A Pending EP4458727A3 (fr) 2020-12-07 2021-12-07 Capsule-dosette pour préparer une boisson dans une machine de préparation de boisson, système pour préparer une boisson et procédé et installation pour produire une capsule-dosette

Country Status (8)

Country Link
US (1) US20240101340A1 (fr)
EP (2) EP4255826B1 (fr)
KR (1) KR20230118157A (fr)
AU (1) AU2021393893A1 (fr)
ES (1) ES2998746T3 (fr)
HR (1) HRP20241516T1 (fr)
PL (1) PL4255826T3 (fr)
WO (1) WO2022122718A2 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI1654966T1 (sl) 2004-10-25 2007-04-30 Nestec Sa Kapsula s tesnilnimi sredstvi
EP1839543B1 (fr) 2006-03-31 2008-06-25 Nestec S.A. Capsule avec joint extérieur sous pression d'un liquide
PL2872421T3 (pl) 2012-07-16 2017-10-31 Tuttoespresso Srl System do zaparzania z dostosowywalnym elementem uszczelniającym
ITMO20130214A1 (it) * 2013-07-26 2015-01-27 Sarong Spa Capsula per bevande e relativo apparato e metodo di realizzazione
WO2016041596A1 (fr) 2014-09-17 2016-03-24 David Rubinstein Capsule pour la preparation d'une boisson
CN111674736B (zh) 2015-05-15 2022-06-17 皇家戴维艾格伯茨有限公司 胶囊以及用于由这种胶囊制备饮用饮料的系统
PT3114048T (pt) * 2015-05-15 2019-07-19 Douwe Egberts Bv Cápsula, sistema para preparar uma bebida potável a partir de tal cápsula e utilização de tal cápsula num dispositivo de preparação de bebida
WO2018067009A1 (fr) * 2016-10-07 2018-04-12 Koninklijke Douwe Egberts B.V. (Utrecht) Capsule, système pour préparer une boisson potable à partir d'une telle capsule et utilisation d'une telle capsule dans un dispositif de préparation de boisson
KR102491513B1 (ko) * 2018-07-27 2023-01-27 지씨에스 게르만 캡슐 솔루션 게엠베하 음료 제조 기계에서 음료를 제조하기 위한 포션 캡슐을 제조하는 방법, 포션 캡슐, 및 음료 제조 기계와 포션 캡슐로 음료를 제조하는 방법
ES2947863T3 (es) * 2019-02-13 2023-08-23 Gcs German Capsule Solution Gmbh Cápsula de porción para preparar una bebida en una máquina de preparación de bebidas y sistema para preparar una bebida a partir de esta cápsula de porción

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Publication number Publication date
HRP20241516T1 (hr) 2025-01-03
ES2998746T3 (en) 2025-02-21
EP4255826A2 (fr) 2023-10-11
AU2021393893A1 (en) 2023-07-06
PL4255826T3 (pl) 2025-02-17
EP4458727A2 (fr) 2024-11-06
US20240101340A1 (en) 2024-03-28
KR20230118157A (ko) 2023-08-10
EP4255826C0 (fr) 2024-08-14
EP4458727A3 (fr) 2025-04-02
WO2022122718A2 (fr) 2022-06-16
WO2022122718A3 (fr) 2022-08-18

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