WO2010058128A1 - Infusion filtering device and appliance for brewing infusions fitted with such a device - Google Patents
Infusion filtering device and appliance for brewing infusions fitted with such a device Download PDFInfo
- Publication number
- WO2010058128A1 WO2010058128A1 PCT/FR2009/052219 FR2009052219W WO2010058128A1 WO 2010058128 A1 WO2010058128 A1 WO 2010058128A1 FR 2009052219 W FR2009052219 W FR 2009052219W WO 2010058128 A1 WO2010058128 A1 WO 2010058128A1
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- WO
- WIPO (PCT)
- Prior art keywords
- filter
- bowl
- wall
- infusion
- filtration device
- Prior art date
Links
- 238000001802 infusion Methods 0.000 title claims abstract description 36
- 238000001914 filtration Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 235000013353 coffee beverage Nutrition 0.000 abstract description 11
- 235000015114 espresso Nutrition 0.000 abstract 1
- 239000000047 product Substances 0.000 description 3
- 241001122767 Theaceae Species 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- YSXLJTGZMRNQSG-UHFFFAOYSA-L disodium;6-amino-5-[[2-[4-[2-[4-[2-[(2-amino-5-sulfonatonaphthalen-1-yl)diazenyl]phenyl]sulfonyloxyphenyl]propan-2-yl]phenoxy]sulfonylphenyl]diazenyl]naphthalene-1-sulfonate Chemical compound [Na+].[Na+].C1=CC=C2C(N=NC3=CC=CC=C3S(=O)(=O)OC3=CC=C(C=C3)C(C)(C=3C=CC(OS(=O)(=O)C=4C(=CC=CC=4)N=NC=4C5=CC=CC(=C5C=CC=4N)S([O-])(=O)=O)=CC=3)C)=C(N)C=CC2=C1S([O-])(=O)=O YSXLJTGZMRNQSG-UHFFFAOYSA-L 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/06—Filters or strainers for coffee or tea makers ; Holders therefor
- A47J31/0657—Filters or strainers for coffee or tea makers ; Holders therefor for brewing coffee under pressure, e.g. for espresso machines
- A47J31/0663—Filters or strainers for coffee or tea makers ; Holders therefor for brewing coffee under pressure, e.g. for espresso machines to be used with loose coffee
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/24—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure
- A47J31/32—Coffee-making apparatus in which hot water is passed through the filter under pressure, i.e. in which the coffee grounds are extracted under pressure with hot water under air pressure
Definitions
- the invention relates to a filtration device equipping an infusion chamber of an infusion making apparatus such as, for example, a coffee maker and having a filter located under a hot water inlet nozzle made in a the chamber, a bowl having a side wall, a bottom having a filter and located opposite a flow chute of the infusion made in a closing part of the chamber; the space generated between the two filters being intended to receive a certain amount of products to be infused, for example ground coffee.
- a filtration device of this type is already known, see, for example, patent FR 2557789, in which the problem of the ejection of the cake of marc once compressed in the bowl is solved by a shock caused directly on the part. closure; this is why this patent aims to solve the retention of the filter in this closure part during the ejection of the slab.
- the filter of the bowl has a deformable wall capable of occupying, under the effect of a manual force, two stable states on either side of an unstable position, ie a receiving state of the grinding in which the wall projects outwardly from the bowl, that is to say a state of ejection of the grinding in which the wall projects towards the inside of the bowl and into which it is brought by said applied force of the bowl; outside said wall.
- the input filter is formed in one piece of a sufficiently rigid material to obtain a bistable effect.
- An excellent result of blistering on both sides of the unstable position has been achieved with a filter consisting of a wire cloth, and with the side wall of the bowl made of plastic material; said filter being fixed on the edge of said wall by overmolding.
- a simple system is made for ejecting the wafer by simply blistering the filter from the outside to the inside.
- the filter of the bowl is constituted by a plastic cloth coming from molding with the side wall of the bowl also made of plastic.
- the invention also relates to an infusion making apparatus, comprising a casing forming the infusion head which encloses a generally cylindrical infusion chamber and which comprises a hot water reservoir communicating with an inlet nozzle. hot water under pressure, a closure member removably mounted on the infusion head and having the general shape of a bucket secured to a filter and whose bottom is provided with an outlet chute of the infusion.
- This device is remarkable in that it comprises a tubular support having a wide orifice forming the nozzle and sealingly attached to the inner wall of the reservoir and intended to form a cradle for a bowl of a filtration device according to the invention. and mounted in this cradle with the filter facing the nozzle. With this design, the filtration device is simple, economical and very convenient to use.
- FIG. 1 is a schematic view of an apparatus comprising a device filter equipped with a bowl, shown in vertical section and according to the invention
- FIG. 2 is a single view in vertical section of the cuvette of the filtration device with a filter in a state of ejection of the pomace;
- FIG. 3 is a partial representation in vertical section of an infusion making apparatus equipped with a filtration device according to the invention.
- FIG. 1 diagrammatically shows a filtration device fitted to an infusion making apparatus comprising a housing 1, a filter 2 located under a hot water inlet nozzle 3 made in an infusion chamber 4, a filter 5 integral with a bowl 6 and forming its bottom and having a side wall 7 and an outlet 8 and located opposite a chute 9 of flow of the infusion made in a closure part 10 of said chamber removably mounted on the housing 1 by any known means schematically in broken lines; the space generated between the two filters being intended to receive a certain quantity of products to be infused.
- products to be infused we mean coffee grinding, but we can also provide tea, chocolate powder, etc.
- the product to brew will be ground coffee.
- the housing 1 comprises, in a conventional manner, a mechanism for pumping hot water under pressure supplying the nozzle 3.
- the filter 5 of the bowl 6 has a deformable wall capable of occupying, under the effect of a manual force, two stable states on either side of an unstable position, a state of receiving the grinding in which the wall projects outwardly from the bowl, that is to say a state of ejection of the grinding in which the wall projects inwards towards the bowl and into which it is brought by said applied force from outside on said wall.
- the unstable position of the filter can be defined by its crossing of a virtual plane passing through the anchoring of the outer edge of the wall of the filter on the outlet 8 of the side wall 7 of the bowl 6.
- the lateral wall 7 of the bowl 6 is formed by a cylindrical piece made of plastic material and the filter 5 is constituted by a fine-meshed wire mesh of circular shape with a pre-compressed wall of shape. curved, and is fixed on the edge of said wall by overmolding to form the bottom of said bowl.
- the filter 5 may consist of a plastic web and molded with the side wall 7 of the bowl 6.
- the side wall 7 of the bowl 6 carries, at the outlet, on its external face a channel 31 in which is housed an O-ring 32.
- FIG. 3 there is illustrated a new application of this filter device to an apparatus arranged in an infusion making apparatus of the type described in the patent application No. FR07011310000 filed by the Applicant February 16, 2007.
- this apparatus has been modified to receive the filtration device according to the invention.
- the apparatus partially shown therefore comprises a casing forming an infusion head 15 and enclosing an infusion chamber 16, a nozzle 17 for supplying hot water under pressure, a closure piece 19 mounted removably on the head, presenting the general shape of a bucket and comprising a filter 20 located opposite a trough 21 flow of the infusion ended, practiced in the bottom of the bucket; the infusion chamber being adapted to contain a bowl 6 'with its filter 5' facing the nozzle 17.
- This head further comprises a hot water tank 22 communicating with the nozzle 17 which is formed by a large orifice formed in a support 23 sealingly attached to the inner wall 24 of the tank and intended to form a cradle for the bowl 6
- the hot water is propelled under a pressure preferably between 14 and 20 bars by the air pressure generated in the reservoir 22 by a not illustrated pressurization means and connected to an air supply duct 25 projecting upwards in this reservoir and nowadays secured to said reservoir support 23.
- the support 23 is formed by an annular ring having, on its peripheral edge facing the closure part, a shoulder 26 for receiving a flange 27 'protruding from the outer face of the bowl.
- the bowl 6 ' also has a complementary cylindrical general shape and is consistent with that of the embodiment of the invention, namely the wall of the filter 5' is formed in one piece of a sufficiently rigid material to obtain a bistable effect.
- the filter 5 ' is made of a stainless steel wire mesh fine mesh whose circular edge is overmolded in the bottom edge of the side wall of the bowl which is made of a plastic material.
- the outlet filter 20 is integral with the closure piece 19 and is fixed for this purpose by a screw 28 anchored in the wall of the closure piece and whose peripheral edge 29 is engaged in a seal 30 encased in said wall.
- the outlet 8 'of the bowl is adjacent to the seal 30 to complete the seal.
- the side wall 14 of the bowl 6 comprises, at the outlet 8 'and in the flange 27', a channel 31 'in which is housed an O-ring 32' adapted to come to rest on a frustoconical annular seat 33 made on the inner face of the bucket when the filtration device is set up for making the infusion.
- This application of the filtration device according to the invention makes it possible to fill the bowl 6 'with its filter 5' in the receiving state of coffee or tea and to insert it directly into the support 23 which with the brewing head has was turned 180 degrees to have the tank turned down and close the brewing chamber, with great ease, by means of the closing piece 19.
- the outlet filter is no longer secured to the closure part, but is mounted on a hole of a lid removably attached to the outlet of the bowl 6 or 6 'of way to constitute an inbox of the grind. Thanks to this embodiment, it can be provided in advance to fill a series of grinders that will be used in a row and postpone the operation of ejection of the marc at another time.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
The invention relates to a filtering device fitted on a brewing chamber (4; 16) of an appliance for brewing infusions and includes a filter (2) located under a hot water intake nozzle (3; 17), a tank (6; 6') having a base comprising a filter (5; 5') and located opposite a flow spout (9; 21) for infusion; the space generated between the two filters being intended to receive a certain amount of products to be brewed. According to the invention, the filter (5, 5') of the tank (6, 6') has a deformable wall capable of occupying, under the effect of a manual force, two stable states on either side of an unstable position, either a state for receiving the ground coffee in which the wall projects towards the outside of the tank, or a state for ejecting the ground coffee in which the wall projects towards the inside of the tank and in which the wall is moved by said force applied from the outside on said wall. The invention applies in particular to espresso coffee machines.
Description
DISPOSITIF DE FILTRATION POUR DES INFUSIONS ET APPAREIL DE CONFECTION D'INFUSIONS EQUIPE D'UN TEL DISPOSITIF FILTRATION DEVICE FOR INFUSIONS AND APPARATUS FOR INFUSION FORMING EQUIPPED WITH SUCH A DEVICE
L'invention, se rapporte à un dispositif de filtration équipant une chambre à infusion d'un appareil de confection d'infusions tel que, par exemple, une cafetière et comportant un filtre situé sous une buse d'arrivée d'eau chaude pratiquée dans la chambre, une cuvette ayant une paroi latérale, un fond comportant un filtre et situé en regard d'une goulotte d' écoulement de l'infusion pratiquée dans une pièce de fermeture de la chambre; l'espace généré entre les deux filtres étant destiné à recevoir une certaine quantité de produits à infuser, par exemple de la mouture de café. On connaît déjà un dispositif de filtration de ce genre, voir, par exemple, le brevet FR 2557789, dans lequel le problème de l'éjection de la galette de marc une fois comprimée dans la cuvette est résolu par un choc provoqué directement sur la pièce de fermeture ; c'est pourquoi ce brevet vise à résoudre la retenue du filtre dans cette pièce de fermeture lors de l'éjection de la galette.The invention relates to a filtration device equipping an infusion chamber of an infusion making apparatus such as, for example, a coffee maker and having a filter located under a hot water inlet nozzle made in a the chamber, a bowl having a side wall, a bottom having a filter and located opposite a flow chute of the infusion made in a closing part of the chamber; the space generated between the two filters being intended to receive a certain amount of products to be infused, for example ground coffee. A filtration device of this type is already known, see, for example, patent FR 2557789, in which the problem of the ejection of the cake of marc once compressed in the bowl is solved by a shock caused directly on the part. closure; this is why this patent aims to solve the retention of the filter in this closure part during the ejection of the slab.
Il existe également des dispositifs d'éjection automatique de la galette par action mécanique sur le fond du filtre monté mobile dans la cuvette pour amener la galette hors de la chambre d'infusion. L'éjection et le nettoyage des filtres de sortie ont toujours posé des problèmes et l'art antérieur est riche de solutions toutes complexes mécaniquement et onéreuses ; voir même une solution de nettoyage par brosse rotative : US4151626. Tous ces dispositifs sont efficaces, mais, sont difficiles à mettre en œuvre et sont de fabrication onéreuse.
L'invention a donc pour but de pallier les inconvénients de l'art antérieur en réalisant un dispositif de filtration de conception très simplifiée, et procurant une grande et rapide commodité d'éjection de la galette de marc par tout utilisateur.There are also devices for automatic ejection of the wafer by mechanical action on the bottom of the movably mounted filter in the bowl to bring the wafer out of the brewing chamber. The ejection and cleaning of the output filters have always caused problems and the prior art is rich in complex solutions mechanically and expensive; see even a solution of cleaning by rotating brush: US4151626. All of these devices are effective, but are difficult to implement and are expensive to manufacture. The invention therefore aims to overcome the disadvantages of the prior art by providing a filtration device design very simplified, and providing a great and quick convenience of ejection of the slab of Marc by any user.
Selon l'invention, le filtre de la cuvette présente une paroi déformable susceptible d' occuper, sous l'effet d'une force manuelle, deux états stables de part et d'autre d'une position instable, soit un état de réception de la mouture en lequel la paroi est saillante vers l'extérieur de la cuvette, soit un état d'éjection de la mouture en lequel la paroi est saillante vers l'intérieur de la cuvette et en lequel il est amené par ladite force appliquée de l'extérieur sur ladite paroi. Avec une telle construction, on comprendra que, non seulement, on agrandit le volume de la cuvette lorsque le filtre est en son état de réception, mais aussi, que l'on réalise une extraction automatique du marc hors de la cuvette lorsque le filtre vient en son état d'éjection. Selon une autre caractéristique de l'invention, le filtre d'entrée est formé en une pièce en un matériau suffisamment rigide pour obtenir un effet bistable. Un excellent résultat de cloquage de part et d'autre de la position instable a été atteint avec un filtre constitué par une toile métallique, et avec la paroi latérale de la cuvette réalisée en matière plastique ; ledit filtre étant fixé sur la bordure de ladite paroi par surmoulage. Ainsi, grâce à cette construction particulière, on réalise un système simple d'éjection de la galette par simple cloquage du filtre de l'extérieur vers 1 ' intérieur.According to the invention, the filter of the bowl has a deformable wall capable of occupying, under the effect of a manual force, two stable states on either side of an unstable position, ie a receiving state of the grinding in which the wall projects outwardly from the bowl, that is to say a state of ejection of the grinding in which the wall projects towards the inside of the bowl and into which it is brought by said applied force of the bowl; outside said wall. With such a construction, it will be understood that, not only, the volume of the bowl is enlarged when the filter is in its receiving state, but also, that an automatic extraction of the pomace out of the bowl is achieved when the filter comes in its ejection state. According to another characteristic of the invention, the input filter is formed in one piece of a sufficiently rigid material to obtain a bistable effect. An excellent result of blistering on both sides of the unstable position has been achieved with a filter consisting of a wire cloth, and with the side wall of the bowl made of plastic material; said filter being fixed on the edge of said wall by overmolding. Thus, thanks to this particular construction, a simple system is made for ejecting the wafer by simply blistering the filter from the outside to the inside.
Toujours dans un but d'optimisation des coûts de fabrication et selon une autre caractéristique de l'invention, le filtre de la cuvette est constitué par une toile en matière plastique venue de moulage avec la
paroi latérale de la cuvette également réalisée en matière plastique.Still for the purpose of optimizing manufacturing costs and according to another characteristic of the invention, the filter of the bowl is constituted by a plastic cloth coming from molding with the side wall of the bowl also made of plastic.
L'invention concerne également un appareil de confection d'infusions, comportant un boîtier formant la tête d'infusion qui renferme une chambre d'infusion de forme générale cylindrique et qui comporte un réservoir d'eau chaude communiquant avec une buse d'arrivée d'eau chaude sous pression, une pièce de fermeture montée amovible sur la tête d'infusion et présentant la forme générale d'un godet solidaire d'un filtre et dont le fond est muni d'une goulotte de sortie de l'infusion. Cet appareil est remarquable en ce qu'il comporte un support tubulaire présentant un large orifice formant la buse et fixé de façon étanche sur la paroi interne du réservoir et destiné à former un berceau pour une cuvette d'un dispositif de filtration selon l'invention et montée dans ce berceau avec le filtre en regard de la buse. Grâce à cette conception, le dispositif de filtration est d'une réalisation simple, économique et d'une grande commodité d'utilisation.The invention also relates to an infusion making apparatus, comprising a casing forming the infusion head which encloses a generally cylindrical infusion chamber and which comprises a hot water reservoir communicating with an inlet nozzle. hot water under pressure, a closure member removably mounted on the infusion head and having the general shape of a bucket secured to a filter and whose bottom is provided with an outlet chute of the infusion. This device is remarkable in that it comprises a tubular support having a wide orifice forming the nozzle and sealingly attached to the inner wall of the reservoir and intended to form a cradle for a bowl of a filtration device according to the invention. and mounted in this cradle with the filter facing the nozzle. With this design, the filtration device is simple, economical and very convenient to use.
Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre, prise à titre d'exemple non limitatif, en référence aux dessins annexés dans lesquels : La figure 1 est une vue schématique d'un appareil comportant un dispositif de filtration équipé d' une cuvette, illustré en coupe verticale et selon 1 ' invention ; La figure 2 est une vue seule en coupe verticale de la cuvette du dispositif de filtration avec un filtre en un état d'éjection du marc ;The features and advantages of the invention will become apparent from the following description, taken by way of non-limiting example, with reference to the accompanying drawings in which: FIG. 1 is a schematic view of an apparatus comprising a device filter equipped with a bowl, shown in vertical section and according to the invention; FIG. 2 is a single view in vertical section of the cuvette of the filtration device with a filter in a state of ejection of the pomace;
La figure 3 est une représentation partielle en coupe verticale d'un appareil de confection d'infusions équipé d'un dispositif de filtration selon l'invention.
A la figure l,on a représenté de façon schématique un dispositif de filtration équipant un appareil de confection d'infusion comportant un boîtier 1, un filtre 2 situé sous une buse 3 d'arrivée d'eau chaude pratiquée dans une chambre d'infusion 4, un filtre 5 solidaire d'une cuvette 6 et formant son fond et comportant une paroi latérale 7 et un débouché 8 et situé en regard d'une goulotte 9 d' écoulement de l'infusion pratiquée dans une pièce de fermeture 10 de ladite chambre montée de façon amovible sur le boîtier 1 par tous moyens connus schématisés en traits interrompus ; l'espace généré entre les deux filtres étant destiné à recevoir une certaine quantité de produits à infuser. Par produits à infuser, on entend notamment de la mouture de café, mais on peut prévoir également du thé, de la poudre de chocolat etc.. Pour la suite de la description, le produit à infuser sera de la mouture de café. Le boîtier 1 comprend, de façon classique, un mécanisme de pompage d'eau chaude sous pression alimentant la buse 3.FIG. 3 is a partial representation in vertical section of an infusion making apparatus equipped with a filtration device according to the invention. FIG. 1 diagrammatically shows a filtration device fitted to an infusion making apparatus comprising a housing 1, a filter 2 located under a hot water inlet nozzle 3 made in an infusion chamber 4, a filter 5 integral with a bowl 6 and forming its bottom and having a side wall 7 and an outlet 8 and located opposite a chute 9 of flow of the infusion made in a closure part 10 of said chamber removably mounted on the housing 1 by any known means schematically in broken lines; the space generated between the two filters being intended to receive a certain quantity of products to be infused. By products to be infused, we mean coffee grinding, but we can also provide tea, chocolate powder, etc. For the following description, the product to brew will be ground coffee. The housing 1 comprises, in a conventional manner, a mechanism for pumping hot water under pressure supplying the nozzle 3.
Selon l'invention, le filtre 5 de la cuvette 6 présente une paroi déformable susceptible d' occuper, sous l'effet d'une force manuelle, deux états stables de part et d'autre d'une position instable, soit un état de réception de la mouture en lequel la paroi est saillante vers l'extérieur de la cuvette, soit un état d'éjection de la mouture en lequel la paroi est saillante vers l'intérieur de la cuvette et en lequel il est amené par ladite force appliquée de l'extérieur sur ladite paroi. La position instable du filtre peut être définie par sa traversée d'un plan virtuel passant par l'ancrage du bord externe de la paroi du filtre sur le débouché 8 de la paroi latérale 7 de la cuvette 6.
Ainsi, avant le remplissage de la cuvette 6 avec la mouture de café , on place le filtre 5 en son état de réception (figures 1 et 3} par une force appliquée manuellement par l'utilisateur de l'intérieur de la cuvette vers l'extérieur et le volume de la cuvette s'en trouve légèrement agrandi. Puis, on place la cuvette remplie de café dans la chambre d'infusion 4 et l'on procède à l'obturation de la chambre d'infusion par ladite pièce de fermeture ; l'infusion de la mouture de café sous pression peut alors être effectuée.According to the invention, the filter 5 of the bowl 6 has a deformable wall capable of occupying, under the effect of a manual force, two stable states on either side of an unstable position, a state of receiving the grinding in which the wall projects outwardly from the bowl, that is to say a state of ejection of the grinding in which the wall projects inwards towards the bowl and into which it is brought by said applied force from outside on said wall. The unstable position of the filter can be defined by its crossing of a virtual plane passing through the anchoring of the outer edge of the wall of the filter on the outlet 8 of the side wall 7 of the bowl 6. Thus, before the filling of the bowl 6 with the coffee grounds, the filter 5 is placed in its reception state (FIGS. 1 and 3) by a force applied manually by the user from the inside of the bowl towards the outside and the volume of the bowl is slightly enlarged, then the cup filled with coffee is placed in the brewing chamber 4 and the brewing chamber is closed by said closure piece the infusion of coffee grounds under pressure can then be carried out.
On constate lors de ce processus de filtration-infusion qu'il se forme, en fin d'infusion par compression de cette mouture sur le filtre 5, une galette de marc compacte qui adhère assez fortement à la paroi latérale 7 de la cuvette 6 et qui s'est détachée du filtre 2 , ceci en fonction du degré de remplissage de la cuvette. On comprendra que, une fois la pièce de fermeture 10 enlevée et la cuvette 6 récupérée, il suffit d'exercer une force manuelle sur le filtre 5 pour le faire passer automatiquement et brutalement de sa première position stable (figure 1 ) à la seconde position stable (figure 2) . Au cours du passage de la position instable, le filtre 5 se cloque vers l'intérieur en émettant un bruit de cliquet et vient pousser ou frapper violemment cette galette pour lui imprimer une force d'éjection, la galette étant alors extraite automatiquement de sa cuvette proprement et sans difficulté.During this filtration-infusion process, it is found that, at the end of the infusion by compression of this grinding on the filter 5, a compact marc slab which adheres rather strongly to the side wall 7 of the bowl 6 and which detached from the filter 2, this depending on the degree of filling of the bowl. It will be understood that once the closing piece 10 has been removed and the bowl 6 is recovered, it suffices to exert a manual force on the filter 5 to make it pass automatically and abruptly from its first stable position (FIG. 1) to the second position. stable (Figure 2). During the passage of the unstable position, the filter 5 blows inwards by emitting a ratchet noise and pushes or violently hit the slab to give it an ejection force, the slab is then extracted automatically from its bowl cleanly and without difficulty.
Selon une caractéristique importante de l'invention, la paroi latérale 7 de la cuvette 6 est réalisée par une pièce cylindrique en matière plastique et le filtre 5 est constitué par une toile métallique à mailles fines, de forme circulaire à paroi pré-compressée de forme bombée, et est fixé sur la bordure de ladite paroi par surmoulage pour former le fond de ladite cuvette.
Bien entendu, le filtre 5 peut être constitué par une toile en matière plastique et venir de moulage avec la paroi latérale 7 de la cuvette 6.According to an important characteristic of the invention, the lateral wall 7 of the bowl 6 is formed by a cylindrical piece made of plastic material and the filter 5 is constituted by a fine-meshed wire mesh of circular shape with a pre-compressed wall of shape. curved, and is fixed on the edge of said wall by overmolding to form the bottom of said bowl. Of course, the filter 5 may consist of a plastic web and molded with the side wall 7 of the bowl 6.
Les essais effectués ont permis, pour obtenir un bon et durable cloquage dans les deux sens et garantir une excellente filtration, de sélectionner une toile métallique en acier inoxydable présentant les caractéristiques suivantes : épaisseur totale de l'ordre deθ,25 mm, maillage de l'ordre deθ,35 mm. Afin d'assurer une étanchéité au niveau de la chambre d'infusion, la paroi latérale 7 de la cuvette 6 porte, au niveau du débouché, sur sa face externe une rigole 31 dans laquelle est logé un joint torique 32.The tests carried out, to obtain a good and durable blistering in both directions and to guarantee excellent filtration, to select a stainless steel wire mesh having the following characteristics: total thickness of the order of .0.25 mm, mesh size order of 0.35 mm. In order to ensure a seal at the level of the infusion chamber, the side wall 7 of the bowl 6 carries, at the outlet, on its external face a channel 31 in which is housed an O-ring 32.
En se rapportant à la figure 3, on a illustré une nouvelle application de ce dispositif de filtration à un appareil agencé dans un appareil de confection d'infusions du type décrit dans la demande de brevet no FR07011310000 déposée par la Demanderesse le 16 février 2007. Comme représenté, cet appareil a été modifié pour recevoir le dispositif de filtration selon l'invention. L'appareil représenté partiellement comporte donc un boîtier formant tête d'infusion 15 et renfermant une chambre d'infusion 16, une buse 17 d'arrivée d'eau chaude sous pression, une pièce de fermeture 19 montée amovible sur la tête, présentant la forme générale d'un godet et comprenant un filtre 20 situé en regard d'une goulotte 21 d'écoulement de l'infusion terminée, pratiquée dans le fond du godet ; la chambre d'infusion étant adaptée à contenir une cuvette 6' avec son filtre 5' tourné vers la buse 17.Referring to Figure 3, there is illustrated a new application of this filter device to an apparatus arranged in an infusion making apparatus of the type described in the patent application No. FR07011310000 filed by the Applicant February 16, 2007. As shown, this apparatus has been modified to receive the filtration device according to the invention. The apparatus partially shown therefore comprises a casing forming an infusion head 15 and enclosing an infusion chamber 16, a nozzle 17 for supplying hot water under pressure, a closure piece 19 mounted removably on the head, presenting the general shape of a bucket and comprising a filter 20 located opposite a trough 21 flow of the infusion ended, practiced in the bottom of the bucket; the infusion chamber being adapted to contain a bowl 6 'with its filter 5' facing the nozzle 17.
Cette tête comprend en outre un réservoir d'eau chaude 22 communiquant avec la buse 17 qui est formée par un large orifice pratiqué dans un support 23 fixé de façon étanche sur la paroi interne 24 du réservoir et destiné à former un berceau pour la cuvette 6. Comme expliqué dans cette demande de brevet:, l'eau chaude est propulsée sous une
pression située de préférence entre 14 et 20 bars par la pression d'air générée dans le réservoir 22 par un moyen de pressurisation non illustré et relié à un conduit d'amenée d'air 25 saillant vers le haut dans ce réservoir et solidaire présentement dudit support 23. Dans la réalisation représentée, le support 23 est formé par une bague annulaire présentant, sur son bord périphérique tourné vers la pièce de fermeture, un épaulement 26 destiné à recevoir une collerette 27' saillante de la face externe de la cuvette.This head further comprises a hot water tank 22 communicating with the nozzle 17 which is formed by a large orifice formed in a support 23 sealingly attached to the inner wall 24 of the tank and intended to form a cradle for the bowl 6 As explained in this patent application: the hot water is propelled under a pressure preferably between 14 and 20 bars by the air pressure generated in the reservoir 22 by a not illustrated pressurization means and connected to an air supply duct 25 projecting upwards in this reservoir and nowadays secured to said reservoir support 23. In the embodiment shown, the support 23 is formed by an annular ring having, on its peripheral edge facing the closure part, a shoulder 26 for receiving a flange 27 'protruding from the outer face of the bowl.
La cuvette 6' présente également une forme générale complémentaire cylindrique et est conforme avec celle de la réalisation de l'invention, a savoir la paroi du filtre 5' est formée en une seule pièce en un matériau suffisamment rigide pour obtenir un effet bistable. Présentement, le filtre 5 'est réalisé en une toile métallique en acier inoxydable à mailles fines dont le bord circulaire est surmoulé dans la bordure de fond de la paroi latérale de la cuvette qui est réalisée en un matériau plastique.The bowl 6 'also has a complementary cylindrical general shape and is consistent with that of the embodiment of the invention, namely the wall of the filter 5' is formed in one piece of a sufficiently rigid material to obtain a bistable effect. Currently, the filter 5 'is made of a stainless steel wire mesh fine mesh whose circular edge is overmolded in the bottom edge of the side wall of the bowl which is made of a plastic material.
Dans cette réalisation particulière de l'appareil, le filtre de sortie 20 est solidaire de la pièce de fermeture 19 et est fixé à cet effet par une vis 28 ancrée dans la paroi de la pièce de fermeture et dont le bord périphérique 29 est engagé dans un joint 30 enchâssé dans ladite paroi .Le débouché 8' de la cuvette est adjacent au joint 30 pour complémenter l ' étanchéité.In this particular embodiment of the apparatus, the outlet filter 20 is integral with the closure piece 19 and is fixed for this purpose by a screw 28 anchored in the wall of the closure piece and whose peripheral edge 29 is engaged in a seal 30 encased in said wall. The outlet 8 'of the bowl is adjacent to the seal 30 to complete the seal.
De manière à assurer un bon fonctionnement du dispositif de filtration, la paroi latérale 14 de la cuvette 6 comporte, au niveau du débouché 8' et dans la collerette 27', une rigole 31' dans laquelle est logé un joint torique 32 ' adapté à venir reposer sur un siège annulaire 33 tronconique pratiqué sur la face interne du godet lorsque le dispositif de filtration est mis en place pour la confection de l'infusion.
Cette application du dispositif de filtration selon l'invention permet de remplir la cuvette 6' avec son filtre 5' en état de réception de mouture de café ou thé et de l'insérer directement dans le support 23 qui avec la tête d'infusion a été retournée de 180 degrés pour avoir le réservoir tourné vers le bas et de fermer la chambre d'infusion, avec grande facilité, au moyen de la pièce de fermeture 19. Une fois l'opération d'infusion terminée, il suffit à l'utilisateur de récupérer la cuvette 6' et d'exercer une légère pression sur le filtre 5' pour le faire passer à la position instable puis automatiquement à sa position stable d'éjection pour obtenir le cloquage inverse et simultanément l'éjection de la galette de marc. Selon une variante non représentée de l'invention, le filtre de sortie n'est plus solidaire de la pièce de fermeture, mais est monté sur un orifice d'un couvercle fixé de façon amovible sur le débouché de la cuvette 6 ou 6' de manière à constituer une boîte de réception de la mouture. Grâce à cette réalisation, on peut prévoir à l'avance de remplir de mouture une série de boîtes que l'on utilisera d'affilée et reporter l'opération d'éjection du marc à un autre moment.
In order to ensure proper operation of the filtration device, the side wall 14 of the bowl 6 comprises, at the outlet 8 'and in the flange 27', a channel 31 'in which is housed an O-ring 32' adapted to come to rest on a frustoconical annular seat 33 made on the inner face of the bucket when the filtration device is set up for making the infusion. This application of the filtration device according to the invention makes it possible to fill the bowl 6 'with its filter 5' in the receiving state of coffee or tea and to insert it directly into the support 23 which with the brewing head has was turned 180 degrees to have the tank turned down and close the brewing chamber, with great ease, by means of the closing piece 19. Once the brewing operation is over, it is sufficient to user to recover the bowl 6 'and exert a slight pressure on the filter 5' to move it to the unstable position and automatically to its stable ejection position to obtain the reverse blistering and simultaneously the ejection of the wafer marc. According to a not shown variant of the invention, the outlet filter is no longer secured to the closure part, but is mounted on a hole of a lid removably attached to the outlet of the bowl 6 or 6 'of way to constitute an inbox of the grind. Thanks to this embodiment, it can be provided in advance to fill a series of grinders that will be used in a row and postpone the operation of ejection of the marc at another time.
Claims
1. Dispositif de filtration équipant une chambre à infusion (4 ;16) d'un appareil de confection d'infusions et comportant un filtre (2) situé sous une buse (3 ; 17} d'arrivée d'eau chaude pratiquée dans la chambre, une cuvette (6 ; 6 ' ) ayant une paroi latérale (7 ;14), un fond comportant un filtre(5 ;5') et situé en regard d'une goulotte d' écoulement (9 ;21) de l'infusion pratiquée dans une pièce de fermeture (10 ;19) de la chambre ; l'espace généré entre les deux filtres étant destiné à recevoir une certaine quantité de produits à infuser, caractérisé en ce que le filtre (5 ; 5 ' ) de la cuvette (6 ; 6 ' ) présente une paroi déformable susceptible d' occuper, sous l'effet d'une force manuelle, deux états stables de part et d'autre d'une position instable, soit un état de réception de la mouture en lequel la paroi est saillante vers l'extérieur de la cuvette, soit un état d'éjection de la mouture en lequel la paroi est saillante vers l'intérieur de la cuvette et en lequel il est amené par ladite force appliquée de l'extérieur sur ladite paroi .1. Filtering device equipping an infusion chamber (4; 16) of an infusion making apparatus and comprising a filter (2) located under a nozzle (3; 17) of hot water inlet made in the chamber, a bowl (6; 6 ') having a side wall (7; 14), a bottom having a filter (5; 5') and located opposite a discharge chute (9; 21) of the infusion performed in a closure part (10; 19) of the chamber, the space generated between the two filters being intended to receive a certain quantity of products to infuse, characterized in that the filter (5; 5 ') of the bowl (6; 6 ') has a deformable wall capable of occupying, under the effect of a manual force, two stable states on either side of an unstable position, ie a receiving state of the grinding in wherein the wall protrudes outwardly of the bowl, that is to say a state of ejection of the grinding in which the wall is projecting towards the inside of the bowl. vette and in which it is brought by said force applied from the outside to said wall.
2. Dispositif de filtration selon la revendication 1, caractérisé en ce que le filtre (5 ; 5 ' ) de la cuvette (6 ; 6 ' } est formé en une pièce en un matériau suffisamment rigide pour obtenir un effet bistable.2. Filtration device according to claim 1, characterized in that the filter (5; 5 ') of the bowl (6; 6') is formed in one piece of a sufficiently rigid material to obtain a bistable effect.
3. Dispositif de filtration selon la revendication 1 ou 2 caractérisé en ce le filtre (5 ; 5 ' } de la cuvette est constitué par une toile métallique en acier inoxydable ayant les propriétés suivantes : épaisseur totale de l'ordre de 0,25 mm, maillage de l'ordre de 0,35 mm.3. Filtration device according to claim 1 or 2 characterized in that the filter (5; 5 ') of the bowl consists of a stainless steel wire cloth having the following properties: total thickness of the order of 0.25 mm , mesh of the order of 0.35 mm.
4. Dispositif de filtration selon la revendication 3, caractérisé en ce que la paroi latérale (7 ;14) de la cuvette (6 ; 6 ' } est réalisée en matière plastique et le filtre (5 ;5') est fixé sur la bordure de ladite paroi par surinoulage.4. Filtration device according to claim 3, characterized in that the side wall (7; 14) of the bowl (6; 6 ') is made of plastic material and the filter (5; 5 ') is fixed on the edge of said wall by over-molding.
5. Dispositif de filtration selon la revendication 2, caractérisé en ce que la paroi latérale (7 ,-14} de la cuvette (6 ;6') est réalisée en matière plastique et le filtre (5 ;5') est constitué par une toile en matière plastique venue de moulage avec ladite paroi.5. Filtration device according to claim 2, characterized in that the side wall (7, 14) of the bowl (6; 6 ') is made of plastic material and the filter (5; 5') is constituted by a plastic canvas molded with said wall.
6. Dispositif de filtration selon l'une quelconque des revendications précédentes, caractérisé en ce que la paroi latérale (7 ;14) de la cuvette (6 ;6') porte, au niveau du débouché, sur sa face externe une rigole(31 ;31') dans laquelle est logé un joint(32 ;32').6. Filtration device according to any one of the preceding claims, characterized in that the side wall (7; 14) of the bowl (6; 6 ') carries, at the outlet, on its outer face a channel (31). 31 ') in which is housed a seal (32; 32').
7. Dispositif de filtration selon l'une quelconque des revendications précédentes, caractérisé en ce que le filtre(2 ;20) est monté sur un orifice d'un couvercle fixé de façon amovible sur le débouché (8 ; 8 ' ) de la cuvette (6.6 ') de manière à constituer une boîte.7. Filtration device according to any one of the preceding claims, characterized in that the filter (2; 20) is mounted on an orifice of a lid removably attached to the outlet (8; 8 ') of the bowl. (6.6 ') so as to constitute a box.
8. Appareil de confection d'infusions comportant un boîtier formant la tête d'infusion (15) qui renferme une chambre d'infusion (16) de forme générale cylindrique et qui comporte un réservoir d'eau chaude (22) communiquant avec une buse (17) d'arrivée d'eau chaude sous pression, une pièce de fermeture (19) montée amovible sur la tête d'infusion et présentant la forme générale d'un godet solidaire d'un filtre (20) et dont le fond est muni d'une goulotte(21) de sortie de l'infusion, ainsi qu' un support tubulaire (23 ) présentant un large orifice formant la buse (17) et fixé de façon étanche sur la paroi interne (24) du réservoir (22) , caractérisé en ce que ledit support (23) est destiné à former un berceau pour une cuvette (6') d'un dispositif de filtration selon l'une quelconque des revendications précédentes et montée dans ce berceau avec le filtre (5') en regard de la buse (17), ledit support (23) étant formé par une bague annulaire présentant, sur son bord périphérique tourné vers la pièce de fermeture, un épaulement (26) destiné à recevoir une collerette (27') saillante de la face externe de la cuvette (6') et présentant une rigole (31'} dans laquelle est logé un joint torique (32') adapté à venir reposer sur un siège annulaire (33) tronconique pratiqué sur la face interne du godet lorsque le dispositif de filtration est mis en place pour la confection de l'infusion. An infusion making apparatus having a casing forming the infusion head (15) which encloses an infusion chamber (16) of generally cylindrical shape and which comprises a hot water reservoir (22) communicating with a nozzle (17) inlet hot water under pressure, a closure member (19) removably mounted on the infusion head and having the general shape of a cup integral with a filter (20) and whose bottom is provided with an outlet chute (21) for the infusion, and a tubular support (23) having a large orifice forming the nozzle (17) and sealingly attached to the inner wall (24) of the reservoir (22). ), characterized in that said support (23) is intended to form a cradle for a cuvette (6 ') of a filtration device according to any one of the preceding claims and mounted in this cradle with the filter (5') facing the nozzle (17), said support (23) being formed by an annular ring having on its bor d peripheral turned towards the closure part, a shoulder (26) for receiving a flange (27 ') projecting from the outer face of the bowl (6') and having a channel (31 ') in which is housed an O-ring (32') adapted to rest on a frustoconical annular seat (33) practiced on the inside of the bucket when the filtration device is set up for making the infusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09795466A EP2378930B1 (en) | 2008-11-20 | 2009-11-19 | Infusion filtering device and appliance for brewing infusions fitted with such a device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0806515 | 2008-11-20 | ||
| FR0806515A FR2938414B1 (en) | 2008-11-20 | 2008-11-20 | FILTRATION DEVICE FOR INFUSIONS AND APPARATUS FOR INFUSION FORMING EQUIPPED WITH SUCH A DEVICE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010058128A1 true WO2010058128A1 (en) | 2010-05-27 |
Family
ID=40821749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2009/052219 WO2010058128A1 (en) | 2008-11-20 | 2009-11-19 | Infusion filtering device and appliance for brewing infusions fitted with such a device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2378930B1 (en) |
| FR (1) | FR2938414B1 (en) |
| WO (1) | WO2010058128A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES1107809Y (en) * | 2014-04-03 | 2014-07-16 | Jofemar Sa | EROGATOR GROUP FOR COFFEE OR TE DISPENSING MACHINE |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2132005A1 (en) * | 1971-03-31 | 1972-11-17 | Alongi Giuseppe | |
| US5715741A (en) * | 1994-03-03 | 1998-02-10 | Maxs Ag | Pot-shaped permanent filter insert |
| US6481338B1 (en) * | 2001-08-30 | 2002-11-19 | Electrical And Electronics Limited | Spoon shaped coffee brewing apparatus |
| FR2912664A1 (en) * | 2007-02-16 | 2008-08-22 | Handpresso Sarl | Coffee brewing apparatus, has isolation unit including valve to cause abrupt relaxation of compressed air in water reservoir and air flow along pressure curve until end of infusion cycle during inactive state of pressurization unit |
-
2008
- 2008-11-20 FR FR0806515A patent/FR2938414B1/en active Active
-
2009
- 2009-11-19 EP EP09795466A patent/EP2378930B1/en not_active Not-in-force
- 2009-11-19 WO PCT/FR2009/052219 patent/WO2010058128A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2132005A1 (en) * | 1971-03-31 | 1972-11-17 | Alongi Giuseppe | |
| US5715741A (en) * | 1994-03-03 | 1998-02-10 | Maxs Ag | Pot-shaped permanent filter insert |
| US6481338B1 (en) * | 2001-08-30 | 2002-11-19 | Electrical And Electronics Limited | Spoon shaped coffee brewing apparatus |
| FR2912664A1 (en) * | 2007-02-16 | 2008-08-22 | Handpresso Sarl | Coffee brewing apparatus, has isolation unit including valve to cause abrupt relaxation of compressed air in water reservoir and air flow along pressure curve until end of infusion cycle during inactive state of pressurization unit |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2378930B1 (en) | 2012-11-07 |
| FR2938414A1 (en) | 2010-05-21 |
| FR2938414B1 (en) | 2013-04-19 |
| EP2378930A1 (en) | 2011-10-26 |
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