Beverage extraction device

Abstract

The invention relates to a beverage extraction device (100) for extracting a beverage from a capsule, comprising an ejector device (150) for tilting a capsule (10) with respect to a holding and piercing arrangement (121), the ejector device (150) comprising a base portion (151) and a side portion (152) firmly connected to the base portion (151), in a resting position the side portion (152) defining a part of an inner side wall (120') of a capsule holding member (120), and in an ejecting position the side portion (152) being moved away from the inner side wall (120').

Description

Technical Field

[0001] This invention relates to the field of preparing beverages using a system comprising a single-cup container containing beverage ingredients and a machine having an extraction chamber designed to contain and extract the container.

[0002] In particular, the present invention relates to the field of beverage extraction apparatuses for extracting beverages from cellulose-based vesicles, preferably containing beverage ingredients such as roasted and ground coffee powder, in a container body for food products. Background Technology

[0003] Single-cup containers for automated beverage preparation encompass a wide range of container types, which can be relatively soft or flexible (such as sacs) and made of any material that is recyclable or non-recyclable, biodegradable or non-biodegradable (such as aluminum, plastic, filter paper).

[0004] WO 2020 / 089404 describes a system for extracting a beverage from a soft or flexible capsule. These capsules include a capsule body and a cap with a flange attached to the capsule body; their shape is asymmetrical with respect to the plane comprising the flange of the capsule body. The extraction device is provided with an extraction chamber, the size of which is configured to adapt to the shape and volume of the introduced capsule. The extraction chamber includes: - An upstream component that defines a retainer and carries an upstream puncture arrangement for opening the bottom wall of the capsule and a liquid injector for supplying liquid through the opened bottom wall, and - A downstream component defining a plate that includes a downstream planar extraction arrangement for opening the cap of the capsule. This plate, commonly referred to as a pyramid plate, includes protruding elements designed to pierce, open, or tear the inflated cap and orifices for discharging beverage from which the beverage flows out of the orifices formed in the cap by the protruding elements.

[0005] During the extraction process, water is supplied to the capsule through the open bottom wall, which increases the pressure inside the capsule. The downstream planar extraction arrangement is designed to open the cap by engaging with the cap against the extraction arrangement under the pressure increase of the injected liquid in the capsule's main chamber and by causing the cap to expand against the extraction arrangement.

[0006] In order to respect the environment, there is a need today to use capsules made of biodegradable and / or degradable materials, especially those made primarily of cellulose-based materials.

[0007] These new materials cause specific problems during beverage preparation and encapsulation processing in extraction devices, particularly making it difficult to achieve optimal extraction of roasted and ground coffee powder.

[0008] In the case of cellulose-based materials, the cellulose-based layer can have a high thickness to provide rigidity to the capsule and maintain its shape. Furthermore, since the cellulose-based layer cannot protect the beverage ingredients from atmospheric effects, cellulose-based materials typically include a layer that forms a protective barrier against the atmosphere. This layer is usually made of a biodegradable polymer, and the cellulose-based material is a laminate of at least a cellulose-based layer (such as paper) and the biodegradable barrier polymer layer. For example, such a biodegradable polymer barrier layer is described in WO 2023 / 052144A1.

[0009] The use of this type of cellulose-based material can affect the proper extraction of beverage ingredients (such as roasted and ground coffee powder) within the extraction chamber. Specifically, biodegradable barrier polymers can possess such stretchable properties that they are difficult to puncture through currently existing downstream planar extraction arrangements. In particular, the material is stretched by the protruding elements of the pyramid plate, but due to its stretching properties, the material is not systematically punctured, opened, or torn at each of these protruding elements. Furthermore, even if the material is punctured, opened, or torn, due to its stretchable properties, the material tends to tightly surround the protruding elements, effectively covering and closing the orifice configured for beverage discharge.

[0010] These issues prevent optimal extraction: reduced coffee flow, increased flow time, and failure to achieve the desired flavor profile of the final coffee. Furthermore, the different extraction methods employed for each capsule, based on the number of openings formed and the number of holes kept clear to expel the beverage, result in inconsistencies in the quality of the extracted beverage between the machine's system and the capsules.

[0011] It has been observed that this high stretchability of cellulose-based layers is particularly pronounced when the capsules are used and stored under humid conditions, such as tropical conditions. Under these tropical conditions, the stretchability of the paper material can increase by up to five times. Therefore, this extraction quality issue is amplified in tropical climates.

[0012] Furthermore, the formation of cellulose-based capsules requires folds that are tightly sealed, thus necessitating large mechanisms with high-torque motors in beverage extraction devices or corresponding beverage preparation machines.

[0013] In the prior art, different types of downstream planar extraction arrangements have been defined, which include protruding elements designed to pierce the expansion wall and holes for discharging beverages, with the beverages flowing out from the openings formed by the protruding elements.

[0014] In EP1247480 and EP1295554, the protruding element is a needle with a conical shape. Each of these needles includes an opening communicating with a beverage outlet conduit.

[0015] When using capsules made of stretchable paper material, known beverage extraction devices cannot reliably eject the capsules after extraction. In particular, when using paper-based capsules, these capsules soften and stick to known capsule ejectors due to post-extraction moisture. Summary of the Invention

[0016] The object of the present invention is to provide a beverage extraction device for extracting a beverage from a capsule containing beverage ingredients, preferably roasted and ground coffee powder, which minimizes the aforementioned disadvantages.

[0017] In particular, the object of the present invention is to provide a beverage extraction apparatus that can achieve proper ejection of the capsules after extraction, while maintaining the consistency of the extracted beverage quality even for cellulose-based capsules.

[0018] In a first aspect of the invention, the aforementioned objective is achieved by a beverage extraction apparatus according to the appended claims, which is used to extract a beverage from a capsule containing beverage ingredients, preferably roasted and ground coffee powder.

[0019] The beverage extraction device includes a capsule holding component and a capsule sealing component. The capsule holding component is used to accommodate capsules and is provided with a holding and piercing arrangement structure for opening the sealing wall of the capsule. The capsule sealing component is provided with a sealing and piercing arrangement structure for opening the sealing wall of the capsule opposite to the holding and piercing arrangement structure. The capsule holding component and the capsule encapsulation component are movable relative to each other between an open position for inserting and / or ejecting the capsule and a closed position for forming an extraction chamber, and are also movable relative to each other between the closed position for forming the extraction chamber and the open position for inserting and / or ejecting the capsule, allowing the extraction chamber to encapsulate the capsule during extraction. The beverage extraction device includes a capsule ejection mechanism that can move relative to the capsule holding component, causing the capsule to tilt relative to the holding and puncturing arrangement structure. The ejection device includes a base portion for the abscess, the base portion being movable between a placement position and an ejection position, wherein in the placement position, the base portion is located at the retaining puncture arrangement structure to contact the bottom wall of the abscess opposite the flange, and wherein in the ejection position, the base portion moves away from the retaining puncture arrangement structure to tilt the abscess relative to the retaining puncture arrangement structure. The ejection device includes a side portion securely connected to the base portion, and In the placement position, the lateral portion is located on the inner wall of the pouch retaining component to define a portion of the inner wall, and in the pop-out position, the lateral portion moves away from the inner wall so that the pouch is tilted relative to the retaining puncture arrangement structure, and vice versa.

[0020] Encapsulation components and encapsulation holding components can refer to the upstream encapsulation component and the downstream encapsulation component, respectively, relative to the flow of liquid to be injected for encapsulation.

[0021] The side portion can be easily accommodated in the pouch holding component. Therefore, the ejection device allows for the reliable disposal of the pouch.

[0022] According to one embodiment, the base portion has an annular shape, or is defined by an annular element.

[0023] This shape provides better support for the sac to be ejected.

[0024] According to one implementation, the base portion is designed to be placed at least partially around the retaining piercing arrangement structure when in the placement position.

[0025] In this way, the base portion can be easily accommodated within the capsule retaining component.

[0026] According to one embodiment, the puncture arrangement is defined by an extraction arrangement including a plurality of opening elements and a plurality of perforations. The opening elements protrude from at least one extraction surface, facing the capsule's sealed wall to be opened in use. The perforations are for discharging beverage dispensed from the opened sealed wall.

[0027] Each of these opening elements has an outlet opening that mates with a perforation and / or a pointed tip.

[0028] In one embodiment, the encapsulation piercing arrangement is also an extractable arrangement according to the appended claims.

[0029] In this case, a sac with a symmetrical shape may be used appropriately.

[0030] According to one implementation, the base portion is designed to be positioned at least partially around the extraction surface when in place.

[0031] In this way, the base portion can be easily accommodated within the capsule retaining component.

[0032] According to one embodiment, the capsule encapsulation component includes a liquid injector fluidly connected to an encapsulation puncture arrangement for guiding liquid to a first puncture arrangement.

[0033] According to one embodiment, the ejection device is capable of moving relative to the bag holding member at least according to the movement of the bag sealing member relative to the bag holding member between a closed position and an open position.

[0034] In particular, the base portion and / or the side portion are capable of moving between a placement position and a pop-out position, at least according to the movement of the bag-sealing component relative to the bag-holding component between a closed position and an open position.

[0035] In this way, the ejection of the capsule can be automated.

[0036] According to one embodiment, the ejection device includes an operating portion that is securely connected to a base portion and / or securely connected to a side portion, and operably connected to a pouch encapsulation component and / or operably connected to a pouch retention component.

[0037] The operating part can operate the base part and / or the side part to move between the placement position and the ejection position based on the relative movement of the bag sealing part and the bag holding part between the closed position and the open position.

[0038] The operating section allows for a simple and reliable pop-up process without the need for complex and expensive components or devices.

[0039] According to one embodiment, the bag-sealing component and the bag-holding component are movable relative to each other between an open position and a closed position by rotating about a common axis of rotation, and vice versa.

[0040] The operating part can operate the movement of the base part and / or the side part according to the relative rotation between the capsule sealing part and the capsule holding part.

[0041] Therefore, a single rotation of either the capsule sealing component or the capsule holding component can operate the ejection of the capsule.

[0042] According to one embodiment, the capsule encapsulation component includes at least a connecting protrusion operably connected to the operating portion, and

[0043] The connecting protrusion can operate the part according to the relative movement of the bag sealing part and the bag holding part between the closed position and the open position.

[0044] The combination of the connecting protrusion and the operating part allows for a simple and reliable pop-out without the use of complex and expensive components or devices.

[0045] On the other hand, the aforementioned objective is achieved by a beverage preparation machine according to the appended claims, which is used to extract a beverage from a capsule containing beverage ingredients, preferably roasted and ground coffee powder.

[0046] The beverage preparation machine includes a beverage extraction device according to the appended claims. The beverage extraction device is positioned in the beverage preparation machine in a non-removable manner, or At least the second capsule encapsulation component of the beverage extraction device is removably positioned within the beverage preparation machine, or The beverage preparation machines include: - A removable capsule retainer, configured to receive and retain the capsule. - A capsule holder receiving area for receiving a removable beverage extraction device, wherein the removable capsule holder is defined by the beverage extraction device.

[0047] On the other hand, the aforementioned objective is achieved by a system according to the appended claims, which includes a beverage preparation machine and a capsule containing beverage ingredients, preferably roasted and ground coffee powder.

[0048] The system includes a beverage preparation machine according to the appended claims, wherein the capsule includes a first capsule seal and a second capsule seal, the first capsule seal and the second capsule seal defining a chamber for encapsulating beverage ingredients, and

[0049] The first and second packing walls of the capsules are made of a multilayer cellulose-based material, which includes at least one paper layer assembled with at least one plastic layer, preferably a biodegradable plastic layer, which is stretchable. Attached Figure Description

[0050] These and further features and advantages of the invention will become apparent from the disclosure of preferred embodiments, which are illustrated by way of non-limiting examples in the accompanying drawings, wherein: - Figure 1A This is a top perspective view of the capsule used in conjunction with the extraction arrangement structure of the present invention; - Figure 1B yes Figure 1A Bottom perspective view of the sac; - Figure 1C yes Figure 1A A top perspective cross-sectional view of the sac; - Figure 2 This is a front perspective view of the beverage extraction device according to the present invention; - Figure 3 yes Figure 2 Rear perspective view of the beverage extraction device; - Figure 4A yes Figure 2 A separate view of the capsule containing part (bottom or downstream) of the beverage extraction device; - Figure 4B yes Figure 4A The settings have Figure 1A A separate view of the sac-containing components of the sac; - Figure 5A yes Figure 2 A front perspective view of the ejector device of a beverage extraction apparatus; - Figure 5B yes Figure 5A Rear perspective view of the pop-up device; - Figure 6 This is a perspective view of a system including a removable beverage extraction device according to the present invention. Detailed Implementation

[0051] Figure 1A (Top perspective view) Figure 1B (Bottom perspective) and Figure 1C (Top perspective cross-sectional view) illustrates a preferred embodiment of the capsule 10 for extraction.

[0052] In this invention, the term "capsule" refers to any kind of single-dose container (such as capsules, boxes, portioning packages, or individual packaging) suitable for preparing beverages or other edible products, and is not limited to the shape of the container, especially the shape of the body.

[0053] The capsule 10 includes a capsule body having a bottom wall 11 and side walls 12 extending axially from the bottom wall 11 toward a top opening. At the top opening, the body includes a circumferential annular flange 12' extending radially outward from the side walls 12 along the circumference of the opening.

[0054] The flange 12' includes a top surface and a bottom surface facing upwards.

[0055] Generally speaking, any transverse cross-section of the main body is circular from bottom to top, and the flange is also circular.

[0056] The main body defines the chamber 10' for containing beverage ingredients, such as Figure 1C Clearly exemplify.

[0057] The packaged beverage ingredients are preferably those that can be extracted under pressure, like roasted and ground coffee powder. Preferably, the roasted and ground coffee powder is tamped.

[0058] In a second-preferred manner, the beverage ingredients can be brewed like tea leaves or dissolved like water-soluble powder ingredients, such as instant coffee powder, milk powder, cream powder, instant tea powder, cocoa powder, soup powder, fruit powder, or mixtures of said powders, or even soluble liquid ingredients or beverage concentrates (such as syrups or milk concentrates). The powder can be compacted, agglomerated, or calcined.

[0059] The pouch 10 includes a cap 13 that is fixed, sealed, or attached to at least a portion of the top surface of the circumferential flange 12', and thus covers and closes the top opening.

[0060] The bottom wall 11 and the side wall 12 define the main body of the pouch 10, and together with the cap 13 define the pouch sealing wall of the same pouch 10.

[0061] Generally, the bottom wall is adapted to be injected with liquid to introduce the liquid into the capsule, while the cap is adapted to be punctured to allow extraction of the beverage. Conversely, as further described below, in this invention, the cap 13 is adapted to be injected with liquid to introduce the liquid into the capsule 10, and extraction of the beverage is defined by puncturing the bottom wall 11 and / or side wall 12 of the same capsule 10.

[0062] exist Figures 1A to 1C In this case, the bottom wall 11 is quite curved; however, the bottom wall may have other shapes, such as a conical shape or a truncated conical shape.

[0063] Preferably, the capsule 10 is made of essentially biodegradable or biodegradable material, preferably a household biodegradable material, since the extracted coffee cake can be easily degraded at home.

[0064] In this invention, the term "degradable material" refers to any material that can be broken down into environmentally harmless products by biological processes (such as those of microorganisms, e.g., bacteria, fungi, or algae). This process can be carried out in an environment with or without oxygen (aerobic). This can be understood, for example, to mean that degradation can occur without any residue. Specifically, at the end of the degradation process, there are no material residues that could cause environmental problems, or any non-biodegradable components. International standards (e.g., EU 13432 or US ASTM D6400) specify the technical requirements and procedures for determining the degradability of materials.

[0065] Preferably, the body and cap of the capsule 10 are made of a multilayer cellulose-based material, which includes a paper layer coated with at least one plastic layer.

[0066] In this invention, the term "multilayer cellulose-based material" refers to a multilayer packaging laminate consisting of a thick layer (or core layer) of paper, cardboard, cardboard, or other cellulose-based material, plus an additional plastic layer, a liquid-tight and heat-sealable layer, or otherwise provided (by deposition, layer-by-layer assembly, extrusion, or co-extrusion methods). Such multilayer cellulose-based materials are intended for use in packaging food products, and containers made from these materials for food products require a certain degree of tightness from the external environment to the interior of the packaging (i.e., tightness to prevent the ingress of substances such as dirt or liquids) and airtightness (specifically, oxygen airtightness for oxygen-sensitive products, i.e., powdered or ground coffee powder), the latter barrier typically provided by the plastic layer.

[0067] Regardless of the type of paper layer, it is assembled with at least one plastic layer. This plastic layer may also be considered a second layer in this application.

[0068] The plastic layer can be selected from the following list: - Polylactic acid (PLA) layer, - Polybutylene succinate (PBS) layer, - Polybutylene adipate terephthalate (PBAT) layer, - Polyhydroxyalkanoate (PHA) layer, - Polycaprolactone (PCL) layer, - A layer of polymer blends formed from any combination of the above polymers.

[0069] The paper layer can be assembled with several of these different plastic layers.

[0070] The plastic layer reinforces the paper layer's protection against liquids, gases, and moisture in the beverage ingredients.

[0071] Typically, the stretchable portion of this multi-layered paper material is the plastic layer.

[0072] In addition to these paper and plastic layers, preferably, the multilayer paper material may include an additional layer of material that provides a barrier against oxygen. This layer may also be considered a third layer in this application.

[0073] This layer can be selected from the following list: - Polyvinyl alcohol copolymer (PVOH) layer, especially butene glycol-vinyl alcohol copolymer (BVOH) layer, - Polyglycolic acid (PGA) layer, -Metallized coating -SiO x Base coating, -AlO x Base coating, - Their combination.

[0074] It has been noted that polyvinyl alcohol copolymer (PVOH) layers, particularly butene glycol-vinyl alcohol copolymer (BVOH) layers, can have variable stretchability.

[0075] Therefore, as described below, the extraction arrangement structure according to the invention is particularly recommended for capsules made of materials comprising at least one layer of this type of copolymer.

[0076] In one specific embodiment where the additional or third layer is a plastic polymer, the second and third layers can be assembled together as a multilayer plastic film. In this embodiment, the multilayer plastic layer may include an inner third layer positioned between two outer second layers.

[0077] Preferably, the inner third layer is a polyvinyl alcohol copolymer (PVOH) film, particularly a butene glycol vinyl alcohol (BVOH) film.

[0078] Preferably, the outer second polymer layer may be selected from polylactic acid (PLA) membrane, polybutylene succinate (PBS) membrane, polyhydroxyalkanoate (PHA) membrane, polybutylene adipate terephthalate (PBAT) membrane, and starch membrane. The second membrane may also be composed of a polymer blend formed from any combination of these listed polymers.

[0079] Preferably, the three layers are attached by two intermediate adhesive layers, preferably an anhydride-modified polymer resin. Generally, this multilayer plastic structure is produced by co-extrusion.

[0080] In this invention, the term "body layer" refers to the thickest layer or the layer containing the most material in a multilayer cellulose-based material, that is, the layer that contributes the most to the mechanical properties and dimensional stability of the multilayer cellulose-based material and the corresponding cellulose-based container body formed from the multilayer cellulose-based material.

[0081] In this multilayered cellulose-based material, paper layers are formed, meaning the paper sheet can be given a three-dimensional shape, which is the form of the main body of the capsule 10 described above. Unlike ordinary capsules made of filter paper, this paper is thicker and retains the three-dimensional shape set during the capsule-making process, so that processing and extraction can be achieved using the extraction arrangement structure (i.e., the extraction arrangement structure according to the invention).

[0082] Preferably, the paper layer of the capsule may have a basis weight of at least 20 g / m², and preferably at most 150 g / m². The body paper may have a higher basis weight than the capping paper because the body paper needs to be stretched and deformed during manufacturing.

[0083] The basis weight of the main paper can be between 80 g / m2 and 150 g / m2.

[0084] The cap may have a weight ranging from 20 g / m2 to 120 g / m2.

[0085] In multilayer cellulose-based materials, the plastic layer provides additional properties such as air barriers, stretchable or deformable properties, as described in, for example, WO 2020 / 114995 or WO 2022 / 022899.

[0086] In fact, to shape multi-layered cellulose-based materials into containers for beverages and to form a barrier to protect the beverage ingredients, the paper layers must be thick enough. Furthermore, to create a barrier against atmospheric oxygen, which is particularly sensitive to roasted and ground coffee powder, multi-layered cellulose-based materials often include biodegradable plastic layers. A sealant layer is typically required to hold the different layers together and prevent delamination.

[0087] According to a preferred embodiment, the multilayer cellulose-based plastic layer comprises multiple plastic layers including an inner barrier membrane positioned between two outer polymer films, wherein: -The internal barrier membrane is a butene glycol (BVOH) membrane (third layer). - The outer polymer membrane can be selected from polylactic acid (PLA) membrane, polybutylene succinate (PBS) membrane, polyhydroxyalkanoate (PHA) membrane, polybutylene adipate terephthalate (PBAT) membrane, and starch membrane (second layer).

[0088] This layer provides tensile properties to a portion of the paper laminate, particularly the internal barrier film made of butene glycol vinyl alcohol (BVOH) film.

[0089] The capping multilayer cellulose-based material may include at least one additional layer, while the body multilayer cellulose-based material need not include this at least one additional layer. However, the capping and body multilayer cellulose-based materials may also be the same.

[0090] Specifically, the outer surface of the multi-layered cellulose-based material used for sealing may be covered by a protective layer. According to a preferred embodiment, this protective layer is a membrane containing regenerated cellulose. Similar to the paper layer, this protective layer is typically torn apart by the downstream extraction arrangement during the brewing process.

[0091] According to another embodiment (not illustrated), the capsule may include an identical first and second encapsulation wall. This means that each of the first and second encapsulation walls includes a capsule body defining half of a chamber and a circumferential annular body flange, and the circumferential annular body flanges of the capsule bodies are attached together to define a chamber for containing beverage ingredients. The capsule shape is symmetrical with respect to a central axial axis extending from the bottom wall to the cap and with respect to the plane of the attached flange. Furthermore, according to another embodiment, the capsule may be defined by a single encapsulation wall that encapsulates the chamber and defines a symmetrical shape according to one or more axes, such as a conical shape, a truncated conical shape, a spherical shape, or an elliptical shape. Therefore, it is preferred that both encapsulation components have the same multilayered cellulose-based material, wherein the outer surface is covered by a protective layer.

[0092] The contents of the capsule are typically extracted by piercing the cap 13 (or the membrane defining the cap) against an extraction arrangement (or an inappropriate "pyramidal plate") designed to expel the beverage. In prior art disclosures, the cap 13 is adapted to open during liquid injection by relative engagement with the extraction arrangement under the influence of increased liquid pressure inside the capsule.

[0093] In the case of capsules made of biodegradable and / or degradable materials, particularly cellulose-based materials, proper extraction is difficult to achieve by piercing the cap with a pyramidal plate due to the high thickness and inherent rigidity of the cellulose-based layers. Furthermore, since cellulose-based materials often also include layers made of degradable polymers, the use of this type of cellulose-based material can affect the proper extraction of beverage ingredients (such as roasted and ground coffee powder) within the extraction chamber. In particular, degradable barrier polymers can possess such stretchable properties that they are difficult to pierce using current downstream planar extraction arrangements. Specifically, the material is stretched by the protruding elements of the pyramidal plate, but due to its stretching properties, the material is not systematically pierced, opened, or torn at each of these protruding elements. Moreover, even if the material is pierced, opened, or torn, due to its stretchable properties, the material tends to tightly surround the protruding elements, effectively covering and closing the orifice configured for beverage discharge.

[0094] These issues prevent optimal extraction: reduced coffee flow, increased flow time, and failure to achieve the desired flavor profile of the final coffee. Furthermore, the different extraction methods employed for each capsule, based on the number of openings formed and the number of holes kept clear to expel the beverage, result in inconsistencies in the quality of the extracted beverage between the machine's system and the capsules.

[0095] Furthermore, the formation of cellulose-based capsules requires folds that are tightly sealed, thus necessitating large mechanisms with high-torque motors in beverage extraction devices or corresponding beverage preparation machines.

[0096] In the prior art, different types of downstream planar extraction arrangements have been defined, which include protruding elements designed to pierce the expansion wall and holes for discharging beverages, with the beverages flowing out from the openings formed by the protruding elements.

[0097] Contrary to prior art disclosures, it has been surprisingly discovered that “reverse extraction” can be used to define a better and more appropriate extraction, which means piercing the beverage by piercing the beverage from the bottom wall 11 of the capsule 10, and ultimately from both the bottom wall 11 and the side wall 12, rather than piercing the beverage by pressing the cap 13 (or the membrane defining the cap) against an extraction arrangement structure or “pyramidal plate” designed to expel the beverage.

[0098] This is especially true when using capsules made of biodegradable and / or degradable materials, particularly cellulose-based materials. Furthermore, this is especially true when the capsules have a symmetrical shape according to one or more axes (i.e., conical, truncated conical, spherical, and elliptical shapes).

[0099] Due to the specific shape of the bottom wall 11, reverse extraction cannot be limited by known extraction arrangement structures. In this respect, the extraction arrangement structure according to the invention allows for solving the aforementioned problems and allows for the proper execution of the desired reverse extraction.

[0100] Therefore, the present invention relates to a beverage extraction device 100 for extracting a beverage from a capsule 10 containing beverage ingredients, preferably roasted and ground coffee powder.

[0101] Beverage extraction device 100 is typically included in a beverage preparation machine, as described in more detail below, which is configured to receive a capsule. Preferably, the beverage preparation machine is a coffee machine, although it may be designed to prepare, for example, tea, chocolate, or soup, depending on the ingredients encapsulated in the capsule. In particular, the device is arranged to prepare the beverage in an extraction chamber by passing water, preferably hot water, or other liquid through a capsule containing the ingredients of the beverage to be prepared (preferably roasted and ground coffee powder, or ultimately tea leaves, or instant coffee, or instant tea, or chocolate, or cocoa, or milk powder, or dehydrated soup). In a preferred embodiment, the beverage ingredient is roasted and ground coffee powder.

[0102] Figure 2 and Figure 3These are front and rear perspective views of a beverage extraction device 100 according to the present invention. The beverage extraction device includes a capsule sealing member 110 and a capsule holding member 120 for receiving the capsule 10. The capsule sealing member defines an upstream or top or first capsule sealing member, and the capsule holding member defines a downstream or bottom or second capsule sealing member, as illustrated in a separate view of FIG4.

[0103] The first pouch sealing component 110 and the second pouch sealing component 120 are capable of being in an open position for inserting and / or ejecting the pouch 10, as described above. Figure 2 and Figure 3 Relative movement between the illustrated closed positions, and is possible as described above. Figure 2 and Figure 3 The illustrated closed position is movable relative to the open position for inserting and / or ejecting the capsule 10. In the latter position, the capsule encapsulation components 110, 120 are able to form an extraction chamber 130, which is capable of encapsulating the capsule 10 during extraction.

[0104] The upstream bag-encapsulating component 110 and the downstream bag-encapsulating component 120 are preferably rotatable relative to each other along a longitudinal axis Z to define relative movement. Typically, this longitudinal axis Z is substantially horizontal, but other options may define the same relative movement, such as translation of at least one of the components relative to the other component.

[0105] The capsule encapsulation component 110 carries an encapsulation piercing arrangement or an upstream piercing arrangement (not shown) for opening the encapsulation wall 13 of the capsule 10 opposite to the retaining piercing arrangement 121. The capsule encapsulation component 110 also preferably carries a liquid injector 111, which is fluidly connected to the piercing arrangement for guiding liquid into the piercing arrangement. In this embodiment, the first encapsulation wall of the capsule 10 is defined by a cap 13, such as... Figures 1A to 1C As illustrated. A puncture arrangement is maintained within the inner surface of the pouch encapsulation member 110, which is the surface facing the pouch 10 during use. This encapsulation (or upstream) puncture arrangement may include a puncture device in the form of a blade. These blades may be designed and positioned such that when the upstream and downstream pouch encapsulation members are positioned as... Figure 2 and Figure 3 The (first) sealing wall (cap 13) of the capsule 10 is punctured when the capsule is in its closed position. A liquid injector 111 extends from the outer surface of the same capsule sealing member 110 to the aforementioned inner surface to allow for the guidance of the injected liquid. The liquid injector 111 (such as a nozzle at the upstream capsule sealing member) can introduce extractable liquid into the holder and through the pre-punctured opening. Thus, the puncture arrangement defines a nozzle, which is an element of the brewing chamber from which liquid (typically water) is injected or guided toward (and into) the capsule 10.

[0106] The capsule holding component 120 includes a holding extraction arrangement 121 for opening the (second) capsule seal of the capsule 10 and extracting the beverage from the same capsule 10.

[0107] The extraction arrangement 121 includes at least one extraction surface 123 and a plurality of opening elements 122 that protrude from the extraction surface 123 and face, in use, the non-planar encapsulation wall to be opened of the capsule 10, which in the embodiment illustrated herein is a bottom wall 11 (or a bottom wall 11 and a side wall 12).

[0108] Generally, the opening element 122 has a shape capable of opening, piercing, cutting, or tearing the sealing wall of the capsule 10. Typically, this shape results in a cross-section that decreases from the bottom to the top. These opening elements 122 may have a pyramidal, stepped pyramidal shape, or preferably a conical or truncated pyramidal shape. The shape may be a combination of a cylindrical or parallelepiped base with a pyramidal or conical top end.

[0109] Regardless of its shape, the opening element 122 preferably has a pointed tip. This pointed tip is sharp enough to pierce or cut the paper layer when the paper material is pressed against it, particularly when the upstream and downstream encapsulating components move from the open position to the closed position, thus forming an extraction chamber around the capsule, as described in more detail below. Preferably, the pointed tip has a conical shape.

[0110] The tip extends a certain height from the extraction surface 123. Generally, this height can be defined according to the properties of the material of the capsule designed for use in the extraction device. In particular, the height must be sufficient to form an opening in the paper material when it is pressed against the tip during the expansion of the cap 13 due to the increased pressure inside the capsule 10 upon water injection. Generally, the height can be at least 1.5 mm.

[0111] Furthermore, the surfaces of these opening elements 122 include beverage outlet openings configured to dispense beverage from the punctured capsule 10 into a drinking cup. The pointed tip facilitates piercing the paper layer during extraction. Specifically, the pointed tip can access the coffee grounds bed held within the capsule 10, allowing the outlet opening to be positioned within the coffee grounds bed during coffee preparation. Each of these outlet openings engages with a perforation configured to drive beverage from the beverage outlet opening through the extraction surface 123 or plate and downstream of the extraction surface or plate. In particular, each of these outlet openings engages with both the perforation and the pointed tip. Thus, beverage produced in the capsule 10 can flow through these outlet openings of the opening element 122 and be dispensed from the extraction chamber. In this respect, the retaining extraction arrangement 121 according to the invention also includes a plurality of perforations to discharge beverage dispensed from the opened capsule wall.

[0112] According to another embodiment (not shown), these opening elements may only have an outlet opening and therefore no pointed end, or vice versa, these opening elements may only have a pointed end and no outlet opening.

[0113] The tip extends from the extraction surface 123 at a predefined height, as described in more detail in the specific description of the embodiments. The outlet opening is preferably positioned above a predefined intermediate location between the extraction surface 123 and the tip, and preferably closer to the tip of the opening element 122 than closer to the extraction surface 123. Therefore, when using a stretchable material, the risk of the outlet opening being blocked by the stretchable material is avoided. Thus, the chance of the outlet opening being positioned above the torn stretchable paper is increased compared to an outlet positioned at the bottom of the opening element. This intermediate location can be defined according to the properties of the material of the capsule designed for use in the extraction device. In particular, the height must be sufficient to ensure that the stretched paper does not cover the beverage outlet opening when pressed against the tip during cap expansion due to increased pressure inside the capsule during water injection. For example, the intermediate location can be set at least 1 mm from the surface of the extraction surface. When the beverage ingredient is roasted and ground coffee powder, the intermediate location can also be defined such that the beverage outlet is positioned inside the bed of roasted and ground coffee powder enclosed in the capsule.

[0114] Preferably, all opening elements include a beverage outlet.

[0115] Preferably, all beverage outlets have the same shape.

[0116] Furthermore, the outlet opening is preferably defined by a slit that extends at least partially within the extraction surface 123 along a plane parallel to the same plane defining the extraction surface 123. Specifically, the slit can be sized to filter particles with a diameter of approximately 0.3 mm. This avoids the risk of a portion of the outlet opening (specifically, the portion closer to the base of the opening element 122) being partially closed by the paper layer. Thus, the entire surface of the outlet opening remains unobstructed for beverage discharge, achieving consistent beverage preparation.

[0117] As illustrated, the retaining and extraction arrangement 121 preferably comprises an assembly having an upper sub-component element and a lower sub-component element. Specifically, the sub-component element comprises a portion of each opening element 122 of the retaining and extraction arrangement 121. The lower and upper sub-component elements are designed such that the lower sub-component element can slide within a receiving aperture of the upper sub-component element and, when positioned within said receiving aperture, can engage to form the complete retaining and extraction arrangement 121. These two components can be easily assembled together without any seals between them, allowing them to be easily separated for cleaning or maintenance. For example, they can be assembled via a snap-fit ​​engagement.

[0118] The construction of the retaining extraction arrangement 121 with two sub-component elements makes it possible to design very small outlet openings inside each opening element 122, which would not be possible by injection molding of a sheet made of a single piece of material.

[0119] According to another embodiment (not illustrated), the openable element may have different shapes. Furthermore, the extraction arrangement may have different arrangements or be made into a single component.

[0120] In this regard, in a preferred embodiment, the extraction surface 123 is defined by an extraction plate having a flat shape. Furthermore, the opening elements 122 protruding from the extraction surface 123 of the extraction plate preferably have the same height.

[0121] The beverage extraction device 100 according to the present invention is further provided with a capsule 10 ejection device 150, such as Figures 5A to 5B The separate view illustrates this. The ejection device 150 is movable relative to the pouch holding member 120 so that the pouch 10 is tilted relative to the retaining puncture arrangement structure 121.

[0122] The ejection device 150 includes a base portion 151 for the pouch 10, which is movable between a placement position and an ejection position, and is also movable between the ejection position and the placement position, wherein in the placement position, the base portion 151 is located at the retaining puncture arrangement 121 to contact the bottom wall 11 of the pouch 10 opposite the flange 12', and wherein in the ejection position, the base portion 151 is moved away from the retaining puncture arrangement 121 to tilt the pouch 10 relative to the retaining puncture arrangement 121.

[0123] Specifically, in the placement position, the pouch 10 is located at the puncture retention arrangement 121 during use, and in the ejection position, the pouch 10 is moved away from the puncture retention arrangement 121 by tilting the pouch 10 relative to the puncture retention arrangement 121.

[0124] As illustrated, the base portion 151 preferably has an annular shape, which in this embodiment is defined by an annular element. Depending on the embodiment (not shown), the base portion may be defined according to different shapes (i.e., partially annular (or ring-shaped) shapes).

[0125] At the piercing arrangement 121, the base portion 151 is designed to at least partially surround the same piercing arrangement 121 when in the placement position, preferably at least partially surrounding the extraction surface 123 (or plate) when in the placement position. In this embodiment, the base portion 151 is designed to completely surround the same piercing arrangement 121 when in the placement position, particularly completely surrounding the extraction surface 123 (or plate) when in the placement position. Furthermore, the thickness of the base portion 151 is such that when in the placement position above the plane of the extraction surface 123 (or plate), the base portion 151 surrounds the same piercing arrangement 121.

[0126] In this embodiment, the ejection device 150 also includes a side portion 152 securely connected to the base portion 151. The side portion 152 defines a portion of the inner wall 120' of the pouch holding member 120, such that the pouch 10 can be held in the pouch holding member 120 when in the placement position (of the base portion 151 and therefore the side portion 152). In particular, the pouch 10 can be held between the holding and extraction arrangement 121 and the inner wall 120', which is also located between the base portion 151 and the side portion 152.

[0127] Therefore, in the placement position, the side portion 152 is located at the inner wall 120' of the pouch retainer 120 to define a portion of the same inner wall 120', and in the pop-out position, the side portion 152 moves away from the inner wall 120' so that the pouch 10 is tilted relative to the retaining puncture arrangement 121, and vice versa.

[0128] The ejection device 150 is preferably movable relative to the pouch holding member 120, at least according to the movement of the pouch sealing member 110 relative to the pouch holding member 120 between a closed position and an open position. The base portion 151 and the side portion 152 are movable between a placement position and an ejection position, at least according to the movement of the pouch sealing member 110 relative to the pouch holding member 120 between a closed position and an open position. According to another embodiment (not shown), if the side portion is absent, only the base portion moves between the placement position and the ejection position.

[0129] Preferably, the ejection device 150 includes an operating portion 153 that is securely connected to the side portion 152 and thus securely connected to the base portion 151. The operating portion 153 is also operatively connected to the pouch encapsulation member 110. In this embodiment, the ejection device 150 includes two operating portions 153 having the same shape and arranged at two supports that operatively connect the ejection device 150 to the pouch encapsulation member 110. Depending on the embodiment (not shown), the operating portion may be operatively connected to a pouch holding member (or both the encapsulation member and the holding member).

[0130] The operating part 153 can operate the base part 151 to move between the placement position and the ejection position by means of the side part 152, based on the relative movement of the bag sealing part 110 and the bag holding part 120 between the closed position and the open position.

[0131] In this embodiment, the pouch sealing member 110 and the pouch holding member 120 are movable relative to each other between an open position and a closed position by rotating about a common axis of rotation Z, and vice versa. The ejection device 150 is also movable about the same axis of rotation Z. In this regard, the operating portion 153 is capable of operating the movement of the base portion 151 according to the relative rotation between the pouch sealing member 110 and the pouch holding member 120, particularly by the action of the side portion 152. Preferably, the pouch sealing member 110 includes at least a connecting protrusion 112 operably connected to the operating portion 153. In this embodiment, since there are two operating portions 153, the pouch sealing member 110 is provided with two corresponding connecting protrusions 112.

[0132] The connecting protrusion 112 can operate the operating part 153 according to the relative movement of the bag sealing part 110 and the bag holding part 120 between the closed position and the open position.

[0133] When the capsule encapsulation component 110 and the capsule holding component 120 move to the open position, the capsule 10 can access the extraction chamber 130, such as Figures 4A to 4BAs shown, the capsule holding member 120 is visible in the receiving position for receiving and holding the capsule 10 (the capsule sealing member 110 is removed for clarity). The capsule 10 is then introduced into the extraction chamber (or cavity) 130, wherein the cap 13 faces the capsule sealing member 110 and the bottom wall 11 faces the holding extraction arrangement 121. Figure 2 and Figure 3 In the middle, the upstream (first) capsule encapsulation component 110 and the downstream (second) capsule encapsulation component 120 are positioned in a closed position to close the extraction chamber 130, and an extraction chamber encapsulating the capsule 10 is formed during extraction.

[0134] The extraction arrangement includes multiple opening elements for opening the bottom wall 11 (and ultimately the side walls 12) of the capsule 10 when the extractable liquid is introduced into the capsule 10 through the puncture arrangement of the first capsule sealing member 110. The puncture arrangement (preferably circular, similar to the cap 13 to be opened of the capsule 10) causes the cap 13 to expand, and consequently the entire capsule 10 and the bottom wall 11 to expand together. Under the increased pressure of the injected liquid in the capsule chamber 10', the opening elements engage with the bottom wall 11, thereby opening the capsule.

[0135] After extraction, due to the adhesion of the capsule 10 as already described, the capsule 10 cannot normally fall by gravity (by flipping the beverage extraction device 100) and requires the action of the ejector device 150. The ejector device is capable of separating the capsule 10 from the two encapsulation parts 110, 120, and in particular from the capsule holding part 120.

[0136] The relative movement between the pouch holding member 120 and the pouch sealing member 110 from a closed position to an open position subsequently moves the ejection device 150. Specifically, during the rotation of the pouch sealing member 110, two connecting protrusions 112 engage the operating portion 153, thereby operating the ejection device 150 (i.e., the side portion 152 and thus the base portion 151) from the placement position to the ejection position for tilting the pouch 10 for disposal.

[0137] According to another embodiment (not shown), the piercing arrangement structure of the beverage extraction device can also be defined by another extraction arrangement structure, thus defining a beverage extraction device having two opposing extraction arrangement structures, with one extraction device in each of the corresponding first capsule sealing member and second capsule sealing member. Therefore, the other extraction arrangement structure (i.e., the extraction arrangement structure located in the first capsule sealing member) can also be an extraction arrangement structure according to a preferred embodiment of the extraction arrangement structure described above (such as holding extraction arrangement structure 121). In this case, extraction from capsules with symmetrical shapes can be appropriately defined.

[0138] Furthermore, according to another embodiment (not shown), the ejection device can be operated in different ways (such as manually or in different engagement methods).

[0139] On the other hand, the aforementioned objective is achieved by a beverage preparation machine 1', which is used to extract a beverage from a capsule 10 containing beverage ingredients, preferably roasted and ground coffee powder.

[0140] According to one implementation plan, Figure 6 An example is illustrated of a beverage preparation machine 1' for extracting beverages according to the present invention, which is a component of a more complex system.

[0141] The beverage extraction machine 1' includes a removable capsule holder configured to receive and hold a capsule 10 and a capsule holder receiving area 101 for receiving the removable capsule holder. Specifically, the removable capsule holder is preferably defined by a beverage extraction device 100 according to one embodiment or a combination thereof described above. Thus, the beverage extraction device 100 is provided with a capsule sealing member 110 and a capsule holding member 120, as already detailed.

[0142] According to another embodiment (not shown), the removable capsule retainer may be defined solely by the capsule retaining component. In this case, a puncture arrangement may already be provided in the machine for extracting the beverage to match the seal of a second capsule to be introduced into the same machine.

[0143] According to another embodiment (not shown), the machine for extracting beverages includes a beverage extraction device according to one or a combination of the embodiments described above. In particular, the beverage extraction device is positioned non-removably within the beverage preparation machine, thus defining a non-removable brewing chamber inside the machine.

[0144] Figure 6 A perspective view of system 1 according to the invention is shown. According to the details provided above, system 1 includes a beverage preparation machine 1' and a capsule 10 containing beverage ingredients, preferably roasted and ground coffee powder. The capsule 10 includes a first and a second sealing wall, which in this invention are a cap 13 and a bottom wall 11 (or a bottom wall and a side wall), respectively. The first and second sealing walls 13 and 11 define a chamber 10' for encapsulating the beverage ingredients. Specifically, the first and second sealing walls 13 and 11 of the capsule 10 are made of a multilayer cellulose-based material comprising at least one paper layer assembled with at least one plastic layer, preferably a biodegradable plastic layer, which is stretchable.

[0145] System 1 is configured to extract a coffee beverage from a capsule 10 containing roasted and ground coffee powder. In the process of preparing the coffee beverage from System 1, at least the following steps occur.

[0146] In the preparatory step, the capsule 10 is inserted between the upstream capsule sealing member 110 and the downstream capsule sealing member 120, positioned in their open positions. This operation can be performed manually by the user or automatically by the motor of the beverage machine 1'. Typically, the capsule 10 is received in a capsule holder (or beverage dispensing device 100) that holds the capsule between the two capsule sealing members 110, 120, which are held apart from each other in their open positions.

[0147] Then, in the first step, the upstream encapsulation component 110 and / or the downstream encapsulation component 120 move relative to each other to their closed positions to form an extraction chamber for the encapsulated capsule 10 for the impending extraction. At this step, the outer surfaces of the first wall 13 and the second wall 11 of the capsule 10 contact the surfaces of the upstream puncture arrangement (or encapsulation puncture arrangement) and the downstream extraction arrangement (or retaining puncture arrangement), respectively. Typically, the upstream puncture arrangement (such as a blade or hollow needle) punctures the first encapsulation wall (which is the cap 13) of the capsule 10, unless the upstream puncture arrangement is retractable and movable in another step.

[0148] Then, in the second step, extraction water is injected by the liquid injector 111 through a hole pierced inside the cap 13 of the capsule 10 by the upstream piercing arrangement structure. As the water is injected, it fills the chamber 10' of the capsule 10. The pressure increases until the second wall, which is the bottom wall 11 (or a combination of the bottom wall 11 and the side walls 12) of the capsule 10, opens. Opening occurs when the pressure causes the second wall to expand to the point that its engagement with the downstream extraction arrangement structure tears or pierces the second wall. Once tearing occurs, coffee extracted from the roasted and ground coffee powder by pressurizing the water flows and is dispensed from the machine 1'.

[0149] Based on recent developments in pyramidal plates (or extraction arrangements), puncture of the capsule 10 can be performed via a top membrane (cap 13), and extraction can be completed with the main body of the capsule 10 (bottom wall 11 and / or side wall 13) abutting against the pyramidal plate (or extraction arrangement). The force required to seal the flat top membrane is minimal, which not only reduces the size and force required to seal the capsule 10 but also significantly simplifies the entire beverage extraction apparatus.

[0150] Finally, as already described, the ejection of the extracted capsule 10 is performed by the ejection device 150.

[0151] Although the invention has been described with reference to the embodiments shown above, it should be understood that the invention protected by the claims is not limited in any way to these illustrated embodiments.

[0152] Various changes and modifications may be made without departing from the scope of the invention as defined in the claims. Furthermore, if known equivalents exist for a particular feature, such equivalents should be incorporated as expressly mentioned in this specification.

[0153] As used in this specification, the words “including,” “contains,” and similar terms should not be construed as having an exclusive or exhaustive meaning. In other words, these terms are intended to mean “including but not limited to.”

[0154] Index list in the attached figure :

Claims

1. A beverage extraction device (100) for extracting a beverage from a capsule (10) containing beverage ingredients, preferably roasted and ground coffee powder, the beverage extraction device (100) comprising a capsule holding member (120) and a capsule sealing member (110), the capsule holding member for receiving the capsule (10) and having a retaining piercing arrangement structure (121) for opening the sealing wall (11) of the capsule (10), the capsule sealing member having a sealing piercing arrangement structure (121) for opening the sealing wall (13) of the capsule (10) opposite to the retaining piercing arrangement structure (121), The capsule holding member (120) and the capsule encapsulation member (110) are movable relative to each other between an open position for inserting and / or ejecting the capsule (10) and a closed position for forming an extraction chamber (130), and are also movable relative to each other between a closed position for forming the extraction chamber (130) and an open position for inserting and / or ejecting the capsule (10), the extraction chamber being able to encapsulate the capsule (10) during extraction. The beverage extraction device (100) is provided with a ejection device (150) for the capsule (10), the ejection device being movable relative to the capsule holding member (120) to tilt the capsule (10) relative to the holding puncture arrangement structure (121), and The ejection device (150) includes a base portion (151) for the pouch (10), the base portion being movable between a placement position and an ejection position, wherein in the placement position, the base portion (151) is located at the retaining piercing arrangement (121) to contact the bottom wall (11) of the pouch (10) opposite the flange (12'), wherein in the ejection position, the base portion (151) moves away from the retaining piercing arrangement (121) to tilt the pouch (10) relative to the retaining piercing arrangement (121). Its features are, The ejector device (150) includes a side portion (152) securely connected to the base portion (151), and In the placement position, the side portion (152) is located at the inner wall (120') of the pouch retaining member (120) to define a portion of the inner wall (120'), and in the pop-out position, the side portion (152) moves away from the inner wall (120') to tilt the pouch (10) relative to the retaining puncture arrangement (121), and vice versa.

2. The beverage extraction device (100) according to claim 1, wherein the base portion (151) has an annular shape.

3. The beverage extraction device (100) according to claim 1 or 2, wherein the base portion (151) is designed to be positioned at least partially around the retaining piercing arrangement (121) when in the placement position.

4. The beverage extraction device (100) according to any one of claims 1 to 4, wherein the retaining puncture arrangement (121) is defined by an extraction arrangement including a plurality of opening elements (122) and a plurality of perforations, the plurality of opening elements protruding from at least one extraction surface (123) facing the package seal wall (12) to be opened in use, the plurality of perforations for discharging the beverage dispensed from the opened package seal wall (12), and Each of the opening elements (122) has an outlet opening that mates with the perforation and / or the tip end.

5. The beverage extraction device (100) according to claims 3 and 4, wherein the base portion (151) is designed to be positioned at least partially around the extraction surface (123) when in the placement position.

6. The beverage extraction apparatus (100) according to any one of claims 1 to 5, wherein the capsule encapsulation component (110) includes a liquid injector (111) fluidly connected to the encapsulation puncture arrangement for guiding liquid into the encapsulation puncture arrangement.

7. The beverage extraction device (100) according to any one of claims 1 to 6, wherein the ejection device (150) is movable relative to the pouch holding member (120) at least according to the movement of the pouch sealing member (110) relative to the pouch holding member (120) between the closed position and the open position.

8. The beverage extraction device (100) according to claim 7, wherein the base portion (151) and / or the side portion (152) are movable between the placement position and the ejection position, at least according to the movement of the bag sealing member (110) relative to the bag holding member (120) between the closed position and the open position.

9. The beverage extraction device (100) according to any one of claims 1 to 8, wherein the ejection device (150) includes an operating portion (153) securely connected to the base portion (151) and / or securely connected to the side portion (152), and operably connected to the capsule sealing member (110) and / or operably connected to the capsule holding member (120), and The operating part (153) is capable of operating the base part (151) and / or the side part (152) to move between the placement position and the pop-out position based on the relative movement of the pouch sealing part (110) and the pouch holding part (120) between the closed position and the open position.

10. The beverage extraction device (100) according to any one of claims 9, wherein the capsule sealing member (110) and the capsule holding member (120) are movable relative to each other between the open position and the closed position by rotating about a common axis of rotation (Z), and vice versa. The operating part (153) is capable of operating the movement of the base part (151) and / or the side part (152) according to the relative rotation between the bag sealing part (110) and the bag holding part (120).

11. The beverage extraction apparatus (100) according to claim 9 or 10, wherein the capsule encapsulation member (110) includes at least a connecting protrusion (112) operably connected to the operating portion (153), and The connecting protrusion (112) is capable of operating the operating portion (153) according to the relative movement of the bag sealing component (110) and the bag holding component (120) between the closed position and the open position.

12. A beverage preparation machine (1'), said beverage preparation machine comprising a beverage extraction device (100) according to any one of claims 1 to 11. The beverage extraction device is positioned in the beverage preparation machine in a non-removable manner, or The beverage extraction device, at least the capsule holding component, is removably positioned within the beverage preparation machine, or The beverage preparation machine (1') mentioned above includes: - A removable capsule retainer configured to receive and retain the capsule (10). -Cavity retainer receiving area (101), the cavity retainer receiving area being used to receive the removable cavity retainer, and The removable capsule retainer is defined by the beverage extraction device (100).

13. A system (1), the system comprising a beverage preparation machine (1') and a capsule (10) containing beverage ingredients, preferably roasted and ground coffee powder, The beverage preparation machine (1') described herein is the beverage preparation machine according to claim 12. The capsule (10) includes a first sealing wall and a second sealing wall (13, 11), the first sealing wall and the second sealing wall (13, 11) defining a chamber (10') for encapsulating the beverage ingredients, and The first and second packing walls (13, 11) of the sac (10) are made of a multilayer cellulose-based material comprising at least one paper layer assembled with at least one plastic layer, preferably a biodegradable plastic layer, which is stretchable.

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