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WO2011150953A1 - Unité de distribution d'une machine à café et procédé d'actionnement de cette dernière - Google Patents

Unité de distribution d'une machine à café et procédé d'actionnement de cette dernière Download PDF

Info

Publication number
WO2011150953A1
WO2011150953A1 PCT/EP2010/057526 EP2010057526W WO2011150953A1 WO 2011150953 A1 WO2011150953 A1 WO 2011150953A1 EP 2010057526 W EP2010057526 W EP 2010057526W WO 2011150953 A1 WO2011150953 A1 WO 2011150953A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
dispensing unit
piston
coffee machine
previous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2010/057526
Other languages
English (en)
Inventor
Rossi Giampiero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brasilia SpA
Original Assignee
Brasilia SpA
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 Brasilia SpA filed Critical Brasilia SpA
Priority to PCT/EP2010/057526 priority Critical patent/WO2011150953A1/fr
Publication of WO2011150953A1 publication Critical patent/WO2011150953A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A47J31/24—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
    • 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
    • A47J31/3623—Cartridges being employed
    • A47J31/3633—Means to perform transfer from a loading position to an infusing position

Definitions

  • the present invention relates to a dispensing unit for a coffee machine and to a method for the actuation thereof.
  • the referenced dispensing unit is of the type comprising an infusion chamber and a piston for the closing thereof, wherein the chamber is movable, with manual, semiautomatic or automatic actuation, between a charging position of the coffee machine, wherein it is released from the piston and with the longitudinal axis thereof inclined upwards, and a dispensing position wherein it is engaged in closing by the piston and with the longitudinal axis thereof substantially horizontal.
  • the coffee charge may be, without distinction, packaged in a stiff capsule or a paper pod.
  • One of the greatest drawbacks of known dispensing units of the type described above consists in that, inserting the charge into the chamber and moving the chamber towards the dispensing position, the charge may escape from the chamber before it is engaged by the closing piston.
  • Such device simplifies the closing step of the chamber of the dispensing unit but greatly complicates the opening step of the chamber of the dispensing unit during which, if the chamber is too close to the piston, the empty charge cannot be ejected from the chamber as it does not have the physical space required to the purpose.
  • the technical task of the present invention therefore is to provide a dispensing unit of a coffee machine and a method for the actuation thereof which allow eliminating the aforementioned technical drawbacks of the prior art.
  • an object of the invention is to provide a dispensing unit of a coffee machine which allows correct management of the coffee charge.
  • Another object of the invention is to provide a dispensing unit of a coffee machine that is compact and at the same time structurally and functionally simple and efficient.
  • another object of the invention is to provide a dispensing unit of a coffee machine that does not expose the infusion water to the risk of contamination.
  • the dispensing unit has the advantage that the closing and the opening path of the chamber are different, so that during the closing path the piston, remaining in the proximity of the chamber, opposes to the escape of the new charge, whereas during the opening path the piston, moving away from the chamber, generates the physical space required for the empty coffee charge to be ejected from the chamber.
  • - figure 1 shows a perspective view of the infusion unit with the chamber in charging position
  • - figure 2 shows a perspective view of the dispensing unit of figure 1 immediately before achieving the dispensing position
  • figure 3 shows a perspective view of the structure of the infusion chamber of the infusion unit of figure 1;
  • figure 4 shows a perspective view of the first portion of the infusion chamber of figure 3;
  • figure 5 shows a perspective view of the second portion of the infusion chamber of figure 3;
  • figure 6 shows a side elevation view of one of the two side walls of the support frame of the dispensing unit of figure 1;
  • figure 7 shows the side cutaway wall of figure 6 along line 7-7;
  • FIG. 8 and 9 show perspective views of the piston of the dispensing unit of figure 1 in the two operating conditions thereof;
  • figure 10 shows a vertical longitudinal section of the dispensing unit of figure 1 in charging position
  • FIG 11 shows a vertical longitudinal section of the dispensing unit of figure 1 in dispensing position.
  • a dispensing unit of a coffee machine globally indicated with reference numeral 1.
  • the dispensing unit 1 comprises an infusion chamber 2 and a piston 3 for the closure thereof.
  • the dispensing unit 1 further comprises a frame 21 essentially shaped as a bent "U" having a head wall
  • Piston 3 is supported by the head wall 22 whereas chamber 2 is supported by the side walls 9 whereinbetween it is arranged.
  • the infusion chamber 2 is movable between charging positions of the coffee charge 4, wherein it is released from piston 3 and with the longitudinal axis L thereof directed upwards, and as dispensing position wherein it is engaged in closing by piston 3 and with the longitudinal axis L thereof substantially horizontal.
  • the dispensing unit 1 exhibits means for differentiating the closing path of chamber 2, during which chamber 2 moves from the charging position to the dispensing position, to the opening path of chamber 2, during which chamber 2 moves from the dispensing position to the charging position.
  • the differentiating means are advantageously suitable for keeping piston 3 close to chamber 2 during the closing path to prevent the escape of the new charge
  • piston 3 constitutes an abutment for charge 4 "which retains it within chamber 2, whereas during the opening path piston 3 itself moves away from charge 4, creating the physical space required for removing charge 4 from chamber 2.
  • the differentiating means comprise at least one guide
  • Guide 5 wherealong chamber 2 is constrained to slide.
  • Guide 5 develops along a closed path defining in a sequence the closing path 6 ⁇ indicated by a dash-point line with downward direction arrows) of chamber 2 and the opening path 7 (indicated by a dash-dash line with upward direction arrows) of chamber 2.
  • the differentiating means further comprise diverter elements 11 provided along guide 5 for directing chamber 2 selectively along the closing path 6 or along the opening path 7.
  • guide 5 comprises a track 8, obtained on the side walls 9 of frame 21, wherein a transversal axis 10 of chamber 2 is constrained to slide.
  • Chamber 2 preferably exhibits also a second transversal axis 23 guided to slide in a slot 24 obtained in the side walls 9 of frame 21.
  • Track 8, in particular, is formed by a groove of the support walls 9 wherein the ends of the transversal axis 10 of chamber 2 engage.
  • the diverter elements 11 comprise a first and a second tab 12, 13 elastically yielding, provided within track 8.
  • track 8 and the diverter elements 11 are obtained in a single piece with the side walls 9 of frame 21, and in particular in the embodiment shown, the first and the second tabs 12, 13 are connected to the side walls 9 only through one of the two short external edges thereof, so as to carry out their flexibility if subject to a pressure crosswise the lying plane thereof.
  • the transversal axis 10 of chamber 2 is associated to a mechanism for moving chamber 2 also carried by the side walls 9 of frame 21.
  • the mechanism for moving chamber 2 comprises a handle (not shown) for actuating in rotation an axis 14 hinged in 19 to a tie rod 15 for moving a lever 16 in turn hinged at a fixed point 20 to a rod-crank mechanism 17 and 18 which directly pulls the transversal axis 10 of chamber 2.
  • Chamber 2 further exhibits means for the removal of a first portion 25 thereof comprising the seat of chamber 4 from a second portion 26 thereof comprising said transversal axis 10.
  • the removal means comprise a plurality of pins 27 for coupling pressure-wise into corresponding seats 28.
  • the first portion 25 of chamber 2 in turn comprises two portions 29, 30 reciprocally slidingly constrained, in action and by contrast of spring means, coaxially to the longitudinal axis L of chamber 2.
  • part 30 of the first portion 25 is fixed to the second portion 26 through fitting of pins 27 into seats 28, whereas part 29 is sliding on part 30 with a sliding stroke delimited by a travel end 32.
  • Part 30 defines the bottom of seat of charge 4 whereas part 29 defines the side wall of the seat of charge 4.
  • the sliding of part 29 towards part 30 is aimed at reducing the height of the side wall of the seat of charge 4 for favouring the ejection of charge 4.
  • the spring means are positioned outside the charge to prevent contacting and contaminating the infusion water, and preferably they comprise one or more helical springs 31 arranged externally to the seat of charge 4 and interposed between - the two parts 29 and 30.
  • Piston 3 comprises a fixed part 33, which extends from the head wall 22 of frame 21, whereto a part 34 is constrained, sliding coaxially to the longitudinal axis LI of piston 3 on the command of control means outside piston 1.
  • the fixed part 33 is provided with perforating tips 35 sliding into corresponding holes 36 of the sliding part 34, and the sliding part 34 is movable between an extraction position of the perforating tips 35 from holes 36 and a retraction position of the perforating tips 35 into holes 36. If a capsule with a completely sealed top is used as charge 4 and the perforating tips 35 are used for perforating said top, the sliding part 34 in the movement thereof that it carries out when chamber 2 moves from the dispensing position to the charging position acts as extractor of the capsule from the perforating tips 35.
  • the control means carried by the side walls 9 of frame 21, comprise a linkage 37 also actuable by the rotation of axis 14 and ending with a cam profile 38 interacting with a transversal axis 39 of the sliding part 34 of piston 3.
  • control means external rather than internal to piston 3 from the one side prevents some parts thereof from coming into contact with the infusion water, contaminating it, on the other side it allows controlling the movement of the sliding part 34 that is moved only after covering a large part of the path of chamber 2 towards the charging position, so as to leave more space to the capsule to be ejected without impacting against piston 3.
  • the dispensing unit initially is with chamber 2 in the charging position illustrated in figure 1.
  • the mechanism for moving chamber 2 starts, which moves chamber 2 thanks to the thrust exerted on the first transversal axis 10 which initially is at the top end of the closing path 6.
  • chainber 2 carries out a rotary-shifting that ends with the take up of the dispensing position (shown in figure 11) at the bottom end of the closing path 6.
  • the ends of the transversal axis 10 slide on tabs 12 that bend.
  • the ends of the transversal axis 10 release from tabs 12 which recover the former bending.
  • a retraction path of chamber 2 along the closing path 6 would therefore be prevented by the interference of the ends of the transversal axis 10 with tabs 12 which on the contrary, when at the end of the dispensing chamber 2 is moved again, divert the transversal axis 10 towards the opening path 7.
  • chamber 2 carries out a rotary-shifting that ends with the take up of the charging position (shown in figure 10) at the top end of the opening path 7.
  • the ends of the transversal axis 10 slide on tabs 13 that bend.
  • the ends of the transversal axis 10 release from tabs 13 which recover the former bending.
  • a retraction path of chamber 2 along the opening path 7 would therefore be prevented by the interference of the ends of the transversal axis 10 with tabs 13 which on the contrary, when at the end of the charging chamber 2 is moved again, divert the transversal axis 10 towards the closing path 6.
  • the optimum synchronisation between the extraction and the retraction of perforating means 36 from holes 36 and the movement of chamber 3 is determined by the external control means of piston 3.
  • the hydraulic circuit provides for the injection of infusion waster dispensed by piston 3 through the perforated top of the capsule and the outward dispensing of the infusion through a special channelling obtained in chamber 2.
  • the infusion unit according to the invention is especially advantageous for that fact of differentiating the closing from the opening path of chamber 2 so as to optimize and simplify the management of charge 4.
  • an infusion chamber having a direction substantially horizontal of the longitudinal axis thereof in the dispensing position it is more generically meant a direction even slightly inclined from the horizontal direction, provided the horizontal component of such direction is prevailing and in any case such as to determine the technical drawback solved by the present invention.

Landscapes

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

Abstract

L'unité de distribution d'une machine à café selon la présente invention comprend une chambre d'infusion et un piston pour la fermeture de cette dernière, la chambre d'infusion étant mobile entre une position de chargement de la charge de café, dans laquelle elle est libérée du piston, et une position de distribution, dans laquelle elle coopère avec le piston lors de sa fermeture. On utilise un moyen pour différencier le trajet de fermeture de la chambre et le trajet d'ouverture de la chambre, le moyen de différenciation étant conçu pour garder le piston près de la chambre pendant le trajet de fermeture afin d'empêcher la fuite de la charge et pour éloigner le piston de la chambre pendant le trajet d'ouverture afin de permettre la fuite de la charge.
PCT/EP2010/057526 2010-05-31 2010-05-31 Unité de distribution d'une machine à café et procédé d'actionnement de cette dernière Ceased WO2011150953A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/057526 WO2011150953A1 (fr) 2010-05-31 2010-05-31 Unité de distribution d'une machine à café et procédé d'actionnement de cette dernière

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/057526 WO2011150953A1 (fr) 2010-05-31 2010-05-31 Unité de distribution d'une machine à café et procédé d'actionnement de cette dernière

Publications (1)

Publication Number Publication Date
WO2011150953A1 true WO2011150953A1 (fr) 2011-12-08

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102973156A (zh) * 2012-09-07 2013-03-20 浙江爱仕达电器股份有限公司 一种胶囊咖啡机酿造装置
WO2013119495A1 (fr) * 2012-02-09 2013-08-15 Keurig, Incorporated Procédé et dispositif de préparation de boisson ayant un support mobile de cartouche de boisson
US20140338543A1 (en) * 2012-02-09 2014-11-20 Keurig Green Mountain, Inc. Beverage forming device and method with cartridge retainer
WO2015150916A3 (fr) * 2014-04-02 2015-12-17 S.A.C.O.M.E. S.A. Unité d'infusion
CN105725795A (zh) * 2015-04-28 2016-07-06 周林斌 一种自动密封加水磨豆咖啡机的工作方法
IT201700118619A1 (it) * 2017-10-19 2019-04-19 Qualita Italia S R L Gruppo di erogazione per la preparazione di bevande calde
US11432676B2 (en) * 2017-03-21 2022-09-06 Suzhou Dr.Coffee System Technology Co., Ltd Coffee brewing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316159A1 (de) * 1983-05-03 1984-11-08 Württembergische Metallwarenfabrik AG, 7340 Geislingen Kaffeemaschine
EP0380450A2 (fr) * 1989-01-27 1990-08-01 Jura Elektroapparate-Fabriken L. Henzirohs AG Machine à café
WO2009016444A2 (fr) * 2007-07-27 2009-02-05 Sgl Italia S.R.L. Con Unico Socio Procédé de production de boissons

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316159A1 (de) * 1983-05-03 1984-11-08 Württembergische Metallwarenfabrik AG, 7340 Geislingen Kaffeemaschine
EP0380450A2 (fr) * 1989-01-27 1990-08-01 Jura Elektroapparate-Fabriken L. Henzirohs AG Machine à café
WO2009016444A2 (fr) * 2007-07-27 2009-02-05 Sgl Italia S.R.L. Con Unico Socio Procédé de production de boissons

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013119495A1 (fr) * 2012-02-09 2013-08-15 Keurig, Incorporated Procédé et dispositif de préparation de boisson ayant un support mobile de cartouche de boisson
US20140338543A1 (en) * 2012-02-09 2014-11-20 Keurig Green Mountain, Inc. Beverage forming device and method with cartridge retainer
JP2015506783A (ja) * 2012-02-09 2015-03-05 キューリグ グリーン マウンテン インク 移動する飲料カートリッジホルダを用いた飲料生成デバイスおよび飲料生成方法
US9968216B2 (en) 2012-02-09 2018-05-15 Keurig Green Mountain, Inc. Beverage forming device and method with moving beverage cartridge holder
US10058208B2 (en) * 2012-02-09 2018-08-28 Keurig Green Mountain, Inc. Beverage forming device and method with cartridge retainer
CN102973156A (zh) * 2012-09-07 2013-03-20 浙江爱仕达电器股份有限公司 一种胶囊咖啡机酿造装置
CN102973156B (zh) * 2012-09-07 2017-05-03 浙江爱仕达电器股份有限公司 一种胶囊咖啡机酿造装置
WO2015150916A3 (fr) * 2014-04-02 2015-12-17 S.A.C.O.M.E. S.A. Unité d'infusion
CN105725795A (zh) * 2015-04-28 2016-07-06 周林斌 一种自动密封加水磨豆咖啡机的工作方法
CN105725795B (zh) * 2015-04-28 2019-09-27 周林斌 一种自动密封加水磨豆咖啡机的工作方法
US11432676B2 (en) * 2017-03-21 2022-09-06 Suzhou Dr.Coffee System Technology Co., Ltd Coffee brewing device
IT201700118619A1 (it) * 2017-10-19 2019-04-19 Qualita Italia S R L Gruppo di erogazione per la preparazione di bevande calde

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