WO2006122879A1 - Machine a cafe - Google Patents

Machine a cafe Download PDF

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Publication number
WO2006122879A1
WO2006122879A1 PCT/EP2006/062052 EP2006062052W WO2006122879A1 WO 2006122879 A1 WO2006122879 A1 WO 2006122879A1 EP 2006062052 W EP2006062052 W EP 2006062052W WO 2006122879 A1 WO2006122879 A1 WO 2006122879A1
Authority
WO
WIPO (PCT)
Prior art keywords
station
brewing
brewing chamber
coffee
coffee machine
Prior art date
Application number
PCT/EP2006/062052
Other languages
German (de)
English (en)
Inventor
Andreas Kister
Original Assignee
BSH Bosch und Siemens Hausgeräte GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to EP06755012A priority Critical patent/EP1885224A1/fr
Publication of WO2006122879A1 publication Critical patent/WO2006122879A1/fr

Links

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
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/60—Cleaning devices
    • 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
    • A47J31/34—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 liquid pressure
    • A47J31/36—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 liquid pressure with mechanical pressure-producing means
    • A47J31/3604—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 liquid pressure with mechanical pressure-producing means with a mechanism arranged to move the brewing chamber between loading, infusing and ejecting stations
    • A47J31/3609—Loose coffee being employed
    • A47J31/3614—Means to perform transfer from a loading position to an infusing position
    • 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
    • A47J31/34—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 liquid pressure
    • A47J31/36—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 liquid pressure with mechanical pressure-producing means
    • A47J31/3604—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 liquid pressure with mechanical pressure-producing means with a mechanism arranged to move the brewing chamber between loading, infusing and ejecting stations
    • A47J31/3609—Loose coffee being employed
    • A47J31/3619—Means to remove coffee after brewing

Definitions

  • the invention relates to a coffee machine, in particular a fully automatic espresso machine, with a brewing chamber, a device for filling the brewing chamber with ground coffee and with a brewing device to brew the coffee powder in the brewing chamber to produce the coffee extract with hot water.
  • the ground coffee necessary for the beverage preparation is metered into the brewing chamber. This ground coffee is then compressed to a certain value. Subsequently, the brewing chamber is fed by a hot water heater hot water under relatively high pressure. This brews the compressed coffee powder. It will be solved in a relatively gentle manner, the flavors and dyes from the ground coffee. The resulting coffee extract flows through a filter out of the brewing chamber and through a corresponding spout into a suitably placed coffee cup or coffee pot.
  • the fully automatic espresso machines currently on the market usually have a substantially vertically constructed mechanism, which is referred to as a so-called. Brewing group, which is either permanently installed in a housing or removable in some devices.
  • Brewing group which is either permanently installed in a housing or removable in some devices.
  • the ground coffee is filled from an integrated into the machine mill or a reservoir from above into the brewing chamber.
  • the brewing chamber is then closed by means of an automatic or user-operated lever mechanism by pushing a piston from above into the brewing chamber, which at the same time compresses the coffee powder.
  • the brewing chamber is mechanically reopened and the caked-on contents, the so-called filter cake, are ejected.
  • the filter chamber for example, a piston-like movable bottom
  • the filter cake after coffee preparation can be pushed up out of the filter chamber, so that the filter cake can then be pushed laterally out of the range of the filter chamber.
  • the path that the individual parts of the brewing chamber have to cover is determined by means of a lever guided mechanics, which is usually designed as a relatively large-scale backdrop or Drehkulissenmechanik.
  • so-called "coffee pads” are used, which are a ready-dosed portion of ground coffee within an all-round filter element
  • pads consist of two filter paper leaflets connected to one another at the edge, which enclose the ground coffee in their central area
  • Such a coffee pad is inserted either manually or automatically into the open brewing chamber of the pad coffee machine, the brewing chamber is closed by means of a locking mechanism, then, as usual, hot water is introduced into the brewing chamber at a relatively high pressure, thus producing the coffee extract which is taken out via the outlet The brewing chamber can then be opened again and the used coffee pad can be automatically or manually removed and disposed of.
  • Another alternative is to add the coffee portions in small plastic containers or the like instead of the coffee pods lead, which are also are disposable.
  • the coffee machine on a turret mechanism with several brewing chambers and a loading station, a brewing station and a discharge station, which are arranged one behind the other on the turret mechanism, that by a rotation of the turret mechanism, the brewing chambers each stepwise be transported in succession from the loading station to the brewing station and on to the emptying station.
  • the system according to the invention it is possible, in particular, to supply one of the brewing chambers with ground coffee while, at the same time, producing coffee in another brewing chamber located at the brewing station.
  • the already used ground coffee can be removed from a further brewing chamber in the emptying station so that it can subsequently be filled again in the loading station.
  • the coffee machine according to the invention can be oriented, for example, as a classic espresso machine, in which the ground coffee is loosely filled, compacted and brewed. In principle, however, it may also be a machine which operates in the manner of a pad coffee machine or in any other way with finished portion units.
  • a coffee pad can be inserted automatically or manually in the loading station, which is then fed to the brewing station by rotation of the turret mechanism. Subsequently, the used pedestrian arrives at the emptying station, where it is removed manually or automatically.
  • a pad any other form of prefabricated coffee portion can be used.
  • the loading station and the emptying station are integrated in a common station, i. H. while coffee is being produced in the brewing station, the old coffee powder is removed from the brewing chamber in parallel in the common loading / unloading station and the brewing chamber is filled with new ground coffee.
  • This variant is particularly preferred for smaller, less expensive machines. In larger coffee machines, however, it is generally more appropriate to provide separate stations for these functions.
  • the turret mechanism on a Brühhunt which is rotatably mounted about a substantially vertical axis of rotation.
  • the brewing chambers circulate on or in the brewing chamber carrier in a circular fashion about the axis of rotation.
  • the brewing chamber carrier is essentially formed by a turntable with a plurality of recesses arranged along the circumference and forming the brewing chambers, each having an upper and a lower opening. It is particularly simple when the brewing chambers forming recesses are formed substantially by vertically extending through the turntable holes.
  • the turntable then has at least in the region of the brewing chambers preferably a (along the axis of rotation) thickness, which is at least equal to or greater than the height of the individual brewing chambers, since the side walls of the brewing chambers are formed by the material of the turntable.
  • the loading station has a filling device, which is arranged above an opening of the brewing chamber respectively located at the loading station.
  • the filling device has a brewing chamber in question from below occlusive floor.
  • a metering device or the like which is connected, for example, with a coffee grinder or a reservoir for providing ground coffee.
  • a corresponding metering device can also be connected to various coffee grinders or storage containers in order to optionally fill one of a number of different types of ground coffee provided.
  • the brewing station preferably has a closure device, which is arranged above an opening of the respective brewing chamber located at the loading station and which closes off the brewing chamber on the top side. Furthermore, there is an inlet for the hot water at the brewing station. In addition, the brewing station has a close below the brewing chamber in question or tightly introduced into the brewing chamber filter element, such as a fine sieve, with an underlying outlet for the coffee extract on.
  • a closure device which is arranged above an opening of the respective brewing chamber located at the loading station and which closes off the brewing chamber on the top side. Furthermore, there is an inlet for the hot water at the brewing station.
  • the brewing station has a close below the brewing chamber in question or tightly introduced into the brewing chamber filter element, such as a fine sieve, with an underlying outlet for the coffee extract on.
  • the closure device preferably has a piston which can be moved in and out of the recess forming the brewing chamber and which can in particular also serve for compacting the ground coffee.
  • a relatively high pressure prevails during operation. Therefore, in order to ensure a tight connection of the filter element to the brewing chamber, the brewing station therefore preferably comprises a device for sealingly pressing the filter element, ie sealing it around the edge, from below into the brewing chamber forming recess.
  • the compression of the ground coffee can, moreover, already be carried out in a previous step, for example by arranging a compaction station on the turret mechanism between the loading station and the brewing station.
  • a compaction station may preferably have a piston which can be moved into and out of the recess forming the brewing chamber and, in turn, a bottom which closes the respective brewing chamber from below.
  • a the brewing chamber from the bottom occlusive floor which is on Revolvermechanismus, z. B. below the turntable, extends continuously over a range which sweeps the lower opening of the brewing chamber during a rotational movement of the feed station to the filter element located on the brewing station. That is, the bottom in the loading station extends continuously further according to the path which the brewing chamber takes during rotation, up to the brewing station, in which then the filter element adjoins or in the appropriate place in the (continuous) bottom of the filter element is embedded or stored. If the coffee machine has a separate compression station, the bottom extends from the filling station below the compression station to the brewing station.
  • the emptying station has an ejection mechanism, for example also in the form of a piston, which simply expels a filter cake located in the brewing chamber after compaction and scalding through the lower opening of the brewing chamber, preferably into a collection container below it.
  • a drainage station may additionally have a flushing device for flushing through the brewing chamber.
  • a separate cleaning station which, for example, has a corresponding flushing device for flushing through the brewing chamber.
  • any number of stations can be provided.
  • several loading stations can be present one after the other at the revolving mechanism, so that, for B. parallel more adjacent brewing chambers can be filled simultaneously.
  • a plurality of brewing stations arranged one after another on the turret mechanism may also be present, so that coffee can be brewed simultaneously in several brewing chambers at the same time.
  • the coffee machine several compression stations, emptying stations, etc. has.
  • Figure 1 is a schematic plan view of a turret mechanism with four brewing chambers and three different stations;
  • Figure 2 is a schematic plan view of a turntable with four chambers for use in a machine according to Figure 1;
  • FIG. 3 shows a schematic cross section through the turntable according to FIG. 2;
  • FIG. 4 shows a schematic cross section through a filling station for a coffee machine according to FIG. 1;
  • FIG. 5 shows a schematic cross section through a brewing station for a coffee machine according to FIG. 1;
  • FIG. 6 shows a schematic cross section through a drainage station for a coffee machine according to FIG. 1.
  • the coffee machine in the illustrated embodiment has a turret mechanism 1 with a mounted about a vertical axis of rotation R turntable 3, which has a total of four brewing chambers 2.
  • the brewing chambers 2 have been introduced here by simple, parallel to the rotation axis R extending through holes in the turntable 3, so that the individual brewing chambers 2 each have an upper opening 4 and a lower opening 5, which are congruent to each other.
  • the material of the turntable 3 thus forms the side walls of the individual brewing chambers. 2
  • a feed station SF In the direction of rotation (in clockwise direction here), a feed station SF, then a brewing station SB and, finally, a drainage station SE are arranged circularly behind one another (see FIG. 1).
  • the individual brewing chambers 2 are each transported step by step from the loading station SF to the brewing station SB and further to the emptying station SE. Consequently, three of the four chambers 2 in a particular station SF, SB, SE are located in this structure, whereas the fourth chamber is currently unused.
  • the loading station SF has a bottom 7, which closes the chamber 2 positioned in the loading station SF at the bottom.
  • a filling device 6 here in the form of a Funnel 6, via which a certain amount of ground coffee is introduced into the brewing chamber 2 in a filling direction E.
  • the ground coffee can basically be filled by any mechanism, eg. B. by gravity or by negative pressure, which is generated in the chamber.
  • Various ways of dosing the coffee powder are known in the art and need not be further explained here.
  • the filling device 6 is connected via a suitable rack 8 or through the housing of the coffee machine with the bottom 7.
  • the turntable 3 is further rotated by 90 ° in the direction of the brewing SB, so that the filled with ground coffee brewing chamber 2 is suitably positioned in the brewing SB.
  • the construction of the brewing station SB can be seen from FIG. So that the ground coffee can not get out of the brewing chamber 2, the bottom 7 extends continuously from the loading station SF in the coffee machine to a bottom part T in the brewing station SB (FIG. 1).
  • a sieve tray 10 is arranged with a very fine screen structure as a filter element 10.
  • the bottom part T is thicker here compared to the bottom 7 preferably integrally connected to the bottom 7 ', since in this bottom part T a suitable Abdrückvoriques 12 is arranged to push the sieve bottom 10 from below something in the brewing chamber, so as to make a tight connection of the sieve tray 10 in the brewing chamber 2 to provide.
  • a suitable Abdrückvorraum512 is arranged to push the sieve bottom 10 from below something in the brewing chamber, so as to make a tight connection of the sieve tray 10 in the brewing chamber 2 to provide.
  • an outlet 11 for the finished coffee extract below the sieve bottom 10 in the bottom part T there is an outlet 11 for the finished coffee extract.
  • the brewing station SB On the upper side, the brewing station SB has a closure device 13, here in the form of a piston 13, which is pressed from above into the brewing chamber 2 in the compression direction V and compresses the ground coffee located therein.
  • the piston 13 is held at the top in a piston guide 14, which is firmly connected again via a rack 15 or the housing of the coffee machine with the bottom part 7 ', so that it does not lead to a displacement of the various components of the piston 13 even with a greater pressure Brühstation SB can come together.
  • Both the movement of the piston 13 and the movement of the sieve bottom 10 upwards into the brewing chamber 2 can take place mechanically, hydraulically or electromechanically.
  • Through an inlet 9 can then be introduced into the brewing chamber 2 under relatively high pressure hot water WH.
  • the resulting coffee extract passes through the sieve tray 10 and the spout 1 1 in a positioned below coffee cup or coffee pot.
  • the piston 13 is moved back up from the brewing chamber 2.
  • the sieve tray 10 is again moved a piece down and thus repealed the seal of the sieve tray 10 relative to the brewing chamber 2 again.
  • the turntable can then continue to turn in the next position by 90 °, so that the relevant brewing chamber 2 is located in the emptying station SE.
  • the filter cake (not shown) located in the brewing chamber 2 is ejected downwards into a collecting container 17 by means of an ejection piston 16 mounted in a further rack 18.
  • this emptying station SE also serves as a cleaning station here.
  • this emptying station SE has over the upper opening 4 of the brewing chamber 2 on the rack 18 nozzles 19, from which z. B. hot cleaning water WR is flushed through the emptied brewing chamber 2.
  • This water WR can first get into the collecting container 17 and drain there, for example, through a sieve or the like into a connected drain. Subsequently, the brewing chamber 2 can then be further rotated in the free position and then passes in a further movement back to the loading station SF.
  • Cleaning of the sieve tray 10 in the brewing station SB can be done, for example, by rinsing hot water there, for example through the inlet 9, which then passes on either through the outlet into a collecting container positioned below or an outflow.
  • a valve may be arranged so that during the cleaning operations, the water required for cleaning by a separate, adjacent to the illustrated coffee spout outlet is disposed of.
  • Such cleaning of the coffee filter can, for example, always take place when an unfilled brewing chamber 2 is located in the brewing station SB.
  • the sieve bottom 10 is lowered even more and by special lateral cleaning nozzles (not shown) is cleaned.
  • the sieve tray 10 is then freshly cleaned each time between two brewing operations.
  • this machine in an embodiment with a plurality of chambers parallel to produce several portions of coffee.
  • the mechanics are relatively well scalable, d. H. It can be used without great constructive changes in different sizes for very small to very large machines.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

L'invention concerne une machine à café comprenant une chambre d'infusion (2), un dispositif pour remplir la chambre d'infusion de mouture de café et un dispositif d'infusion (3), afin d'infuser, avec de l'eau chaude, la mouture de café se trouvant dans la chambre d'infusion (2), de sorte à produire de l'extrait de café. Ladite machine à café présente un mécanisme de type revolver (1) comportant plusieurs chambres d'infusion (2), un poste de chargement (SF), un poste d'infusion (SB) et un poste d'évacuation (SE), qui sont disposés les uns à la suite des autres sur le mécanisme de type revolver (1), de sorte qu'une rotation du mécanisme de type revolver (1) permette de transporter les chambres d'infusion (2) dans chaque cas progressivement et successivement, du poste de chargement (SF) au poste d'infusion (SB) et ensuite, jusqu'au poste d'évacuation (SE).
PCT/EP2006/062052 2005-05-19 2006-05-04 Machine a cafe WO2006122879A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06755012A EP1885224A1 (fr) 2005-05-19 2006-05-04 Machine a cafe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005023135.7 2005-05-19
DE200510023135 DE102005023135A1 (de) 2005-05-19 2005-05-19 Kaffeemaschine

Publications (1)

Publication Number Publication Date
WO2006122879A1 true WO2006122879A1 (fr) 2006-11-23

Family

ID=36636143

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/062052 WO2006122879A1 (fr) 2005-05-19 2006-05-04 Machine a cafe

Country Status (3)

Country Link
EP (1) EP1885224A1 (fr)
DE (1) DE102005023135A1 (fr)
WO (1) WO2006122879A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150033948A1 (en) * 2013-08-01 2015-02-05 Roger G. Lawson Automated Hot Beverage Brewing Machine
GR20180100432A (el) * 2018-09-25 2020-05-11 Κωνσταντινος Ιωαννη Βρεττος Διαταξη αποσπωμενων δοχειων ψησιματος καφε
KR102241383B1 (ko) * 2020-12-17 2021-04-15 임은성 자동 판매기용 회전식 커피 추출장치

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20070302A1 (it) * 2007-04-24 2008-10-25 Gino Rapparini Perfezionamenti alle macchine per ottenere infusi tipo espresso
WO2009157025A1 (fr) * 2008-06-27 2009-12-30 Essence-Sbt Sa Système permettant de fermer et d’ouvrir automatiquement une chambre porte-filtre pour des distributeurs d'infusions
EP3677155A1 (fr) * 2019-01-03 2020-07-08 CUP&CINO Kaffeesystem-Vertrieb GmbH & Co. KG Machine à café express et à café dotée d'un double système d'extraction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1184141A (fr) * 1956-10-09 1959-07-17 Meccanica Moderna Milano M M M Machine automatique pour la préparation du café
FR2141533A2 (fr) * 1971-06-14 1973-01-26 Donot Guy
US4829889A (en) * 1987-05-30 1989-05-16 Nitto Kohki Co., Ltd. Dispenser
EP0370936A1 (fr) * 1988-11-23 1990-05-30 Jean Pierre Coruzzi Machine à café automatique composée d'un plateau mobile circulaire percé d'alvéoles disposé entre deux plateaux fixes, le mouvement circulaire assurant les différentes phases de la préparation du café avec une étanchéité de chaque alvéole
US5133983A (en) * 1989-03-23 1992-07-28 Patzner Gmbh & Co. Espresso machine and method of making espresso by using said machine

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BE387022A (fr) * 1931-03-12
CH439636A (de) * 1966-05-20 1967-07-15 Bereny Charles Verfahren zur kontinuierlichen Zubereitung von Kaffee und Einrichtung zur Ausübung des Verfahrens
DE1918425A1 (de) * 1969-04-11 1970-10-15 Marcel Heer Expresskaffeemaschine
CH651741A5 (de) * 1981-11-06 1985-10-15 Josef Schumacher Kaffeemaschine.
DE8430876U1 (de) * 1984-10-20 1986-05-15 Senger, Michael, 3300 Braunschweig Kaffeemaschine
CH674703A5 (en) * 1988-03-11 1990-07-13 Salvis Ag Double piston coffee brewing machine - has two rotors swinging pistons into line with filling, brewing and discharge stations
IT1281264B1 (it) * 1995-05-04 1998-02-17 Ariete Srl Macchina automatica per la preparazione di caffe' espresso.
FR2804002B1 (fr) * 2000-01-24 2002-07-05 Unic Groupe pour la fabrication de boissons par infusion et machine l'integrant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1184141A (fr) * 1956-10-09 1959-07-17 Meccanica Moderna Milano M M M Machine automatique pour la préparation du café
FR2141533A2 (fr) * 1971-06-14 1973-01-26 Donot Guy
US4829889A (en) * 1987-05-30 1989-05-16 Nitto Kohki Co., Ltd. Dispenser
EP0370936A1 (fr) * 1988-11-23 1990-05-30 Jean Pierre Coruzzi Machine à café automatique composée d'un plateau mobile circulaire percé d'alvéoles disposé entre deux plateaux fixes, le mouvement circulaire assurant les différentes phases de la préparation du café avec une étanchéité de chaque alvéole
US5133983A (en) * 1989-03-23 1992-07-28 Patzner Gmbh & Co. Espresso machine and method of making espresso by using said machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150033948A1 (en) * 2013-08-01 2015-02-05 Roger G. Lawson Automated Hot Beverage Brewing Machine
US10980367B2 (en) * 2013-08-01 2021-04-20 Roger G. Lawson Automated hot beverage brewing machine
GR20180100432A (el) * 2018-09-25 2020-05-11 Κωνσταντινος Ιωαννη Βρεττος Διαταξη αποσπωμενων δοχειων ψησιματος καφε
KR102241383B1 (ko) * 2020-12-17 2021-04-15 임은성 자동 판매기용 회전식 커피 추출장치

Also Published As

Publication number Publication date
EP1885224A1 (fr) 2008-02-13
DE102005023135A1 (de) 2006-11-23

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