WO2007031378A2 - Espresso coffee machine - Google Patents

Espresso coffee machine Download PDF

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Publication number
WO2007031378A2
WO2007031378A2 PCT/EP2006/065223 EP2006065223W WO2007031378A2 WO 2007031378 A2 WO2007031378 A2 WO 2007031378A2 EP 2006065223 W EP2006065223 W EP 2006065223W WO 2007031378 A2 WO2007031378 A2 WO 2007031378A2
Authority
WO
WIPO (PCT)
Prior art keywords
filter
supply unit
holder means
machine
holder
Prior art date
Application number
PCT/EP2006/065223
Other languages
French (fr)
Other versions
WO2007031378A3 (en
Inventor
Bruno Bardazzi
Original Assignee
Termozeta S.P.A.
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 Termozeta S.P.A. filed Critical Termozeta S.P.A.
Priority to CN2006800323054A priority Critical patent/CN101304681B/en
Priority to PL06778220T priority patent/PL1937117T3/en
Priority to DE602006013170T priority patent/DE602006013170D1/en
Priority to EP06778220A priority patent/EP1937117B1/en
Priority to AT06778220T priority patent/ATE461643T1/en
Publication of WO2007031378A2 publication Critical patent/WO2007031378A2/en
Publication of WO2007031378A3 publication Critical patent/WO2007031378A3/en
Priority to US12/036,307 priority patent/US7827905B2/en

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
    • A47J31/3666—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 whereby the loading of the brewing chamber with the brewing material is performed by the user
    • A47J31/3676—Cartridges being employed
    • A47J31/368—Permeable cartridges being employed

Definitions

  • the present invention relates to espresso coffee machines in which the coffee is introduced in the form of pre-filled cartridges, i.e. so-called “pods” or “capsules”, or the like.
  • espresso coffee machines which until a few years ago were intended essentially for professional use are nowadays widespread also on a domestic level.
  • pre-packaged measures of coffee powder have been provided, these being enclosed in water-permeable containers made of paper, plastic, aluminium or the like, which are commonly called capsules.
  • the espresso machine which uses this type of capsule is undoubtedly much simpler to use and provides a coffee infusion having characteristics which depend solely on the quantity of water used; basically those steps such as filling the filter and compressing it, which are not sufficiently automated for the product to be popular on a large scale, have been eliminated in practice.
  • the machine is very much cleaner overall and maintenance thereof does not involve particular problems.
  • a drawback consists in the fact that the capsule is not ejected from the filter holder using simple means which are able to operate immediately after extraction of the coffee infusion. In fact, if it is required to prepare a coffee immediately after one which has just been made, it is necessary to wait a few minutes until the capsule cools and can be handled, or it is necessary to use special instruments such as, pincers, for example, which make the operation decidedly unpractical.
  • the object of the present invention is therefore to provide a machine which is able to eject automatically the used pre-packaged capsules immediately after they have undergone extraction, without any complex and costly modifications being made to the structure thereof.
  • the present invention relates to an espresso coffee machine comprising a unit supplying the hot water, and filter-holder means able to contain a pre-packaged measure of coffee powder, said supply unit and said filter-holder means being sealingly engaged with each other and the path of the engaging movement lying in a plane substantially perpendicular to the middle plane of engagement of said supply unit and said filter-holder means, the surfaces of said unit supplying said filter-holder means coming into contact only upon engagement of the latter; said machine comprises an ejection member arranged in the vicinity of the periphery of said supply unit and projecting perpendicularly with respect to the middle plane of engagement of said supply unit and said filter-holder means, said ejection member being provided at its free end with means able to co-operate with the outwardly lying edge of said prepackaged capsule projecting outwards from said filter-holder means, so as to cause ejection thereof upon separation of the said filter-holder means from said supply unit.
  • said ejection member comprises an arm which is resiliently stressed, connected at one end
  • the middle plane of engagement of said supply unit and said filter-holder means is perpendicular to the base plane of the body of the machine; said filter-holder means comprise a closing flap which is hinged at one end with the body of said machine, the opposite end being provided with releasable engaging means intended to engage with suitable engaging means provided on the wall of the body of said machine.
  • the engaging means of said closing flap are formed so that they take up the play existing between the said closing flap and the body of the machine.
  • Figure 1 is a side elevation view with parts cross-sectioned of a detail of an embodiment of the machine according to the present invention, shown at the moment of insertion of the pre-packaged capsule;
  • Figure 2 is a view similar to that of Figure 1 , with the machine shown during dispensing of the coffee infusion;
  • Figure 3 shows the step involving ejection of the capsule after dispensing
  • Figure 4 is a top plan view of the detail of the machine in the configuration shown in Figure 2
  • Figure 1 shows a detail relating to an embodiment of the invention
  • 1 denotes the wall of the body of the machine according to the present invention.
  • the wall 1 has the threaded hole 201 inside which the unit 101 supplying hot water under pressure is inserted by means of engagement between the end-piece 1 1 1 provided with the thread 121 and the said threaded hole 201 ; the unit is provided with a supply spray head 131.
  • the wall 1 has, projecting from it, below the unit 101 , the supports 301 , on which the closing flap 2 carrying the filter-holder means 102 is engaged by means of the pins 311.
  • the arm 401 which is pivotably engaged at one end with the wall 1 by means of the pin 431 is situated immediately above the unit 101 , while at the other end it has the hook 421.
  • the projecting bracket 501 on which the bar 51 1 is arranged is positioned at the top end of the wall 1.
  • the filter holder 102 is situated substantially in the centre of the closing flap 2 and has a cavity 122, the external side walls 112 of which are tapered towards the outwardly lying edge.
  • the bottom of the said cavity 122 has, formed therein, an axially projecting annular relief which supports the pre-packaged capsule 3 of coffee powder, provided with a radially projecting flange 103 which is situated on the outwardly lying edge of the said cavity 122.
  • An axial hole 142 communicating with the duct 202 formed in the said closing flap 2 is formed in the centre of the bottom wall of the said cavity 122.
  • the end of the said closing flap 2 opposite to that connected to the supports 301 has, arranged thereon, a projecting bracket 502 provided with a transverse bar 512 on which there is mounted, by means of the through-eyelet 322, the latch 302 provided at one end with the tooth 312, the other end thereof being pivotably connected to the pin 412 of a lever 402, by means of the through-eyelet 332.
  • the lever 402 is provided at one end with the grip 422 and at the opposite end is pivotably connected to the pin 522 fastened to the bracket 502.
  • the latch 302 is resiliency stressed by the spring 602 which is fixed at one end to the closing flap 2 by means of the screws 612.
  • Figure 4 clearly shows the system for closing the closing flap 2 onto the wall 1 of the machine according to the invention; the same numbers are used to identify identical parts.
  • the lever 412 is stressed resiliency by means of 532 wound around the pin 522 and locked at its other end by the bar 512.
  • the latch 302 pivoting with respect to both the bar 512 of the bracket 502 and the pin 412 of the lever 402, allows closing of the closing flap able to take up any play and ensure sealed engagement of the filter holder 102 and the supply unit 101.
  • the latch 302 is opened, releasing its tooth 312 from engagement with the bar 51 1 , by pushing the handle 422 of the lever 402 upwards; with the movement of the closing flap 2 away from the wall 1 , the hooked end 421 of the arm 401 , which during the previous step rested against the external side wall of the filter holder 102, enters into contact with the radial flange 103 of the used pre-packaged capsule 3.
  • the capsule 3 will be extracted from the cavity 122 and will be able to fall, for example into the receiving drawer 10, shown in dot-dash lines in the figure, the ejected capsule also being shown in dot-dash lines and indicated by the number 3'.
  • the said drawer 10 is inserted in an extractable manner in the frame of the coffee machine and provided with a gripping handle 1 1.
  • the machine will therefore be ready for introduction of a new pre-packaged capsule of coffee powder. It is obvious that there must be a through-gap between the wall 1 of the machine and the closing flap 2 such as to allow the capsule 3 to pass through towards the drawer 10.
  • This gap in the embodiment shown is obtained by leaving free the space situated between the supports 301 which project from the wall 1 and with which the closing flap 2 is hinged, the wall 1 and the closing flap 2.
  • the machine designed in this way solves in an extremely simple manner the problem of ejection of the used coffee powder capsules, with an obvious increase in the safety and ease of use, as well as cleanliness, owing to the fact that the capsule ejected from the machine does not have to be handled directly by the user.

Abstract

Espresso coffee machine comprising a unit (101 ) supplying the hot water, and filter- holder means (2, 102) able to contain a pre-packaged measure (3) of coffee powder, said supply unit (101 ) and said filter-holder means (2, 102) being sealingly engaged with each other and the path of the engaging movement lying in a plane substantially perpendicular to the middle plane of engagement of said supply unit (101 ) and said filter-holder means (2, 102), the surfaces of said unit (101 ) supplying said filter-holder means (2, 102) coming into contact only upon engagement of the latter; said machine comprises an ejection member (401 ) arranged in the vicinity of the periphery of said supply unit (101 ) and projecting perpendicularly with respect to the middle plane of engagement of said supply unit (101 ) and said filter-holder means (2, 102), said ejection member (401 ) being provided at its free end with means (421 ) able to co-operate with the outwardly lying edge (103) of said pre-packaged capsule (3) projecting outwards from said filter-holder means (2, 102), so as to cause ejection thereof upon separation of the said filter-holder means (2, 102) from said supply unit (101 ).

Description

TITLE: ESPRESSO COFFEE MACHINE
DESCRIPTION
The present invention relates to espresso coffee machines in which the coffee is introduced in the form of pre-filled cartridges, i.e. so-called "pods" or "capsules", or the like.
Espresso coffee machines which until a few years ago were intended essentially for professional use are nowadays widespread also on a domestic level. In order to make the use of these machines simpler and more practical and standardise the qualitative standards of the product, namely the coffee dispensed, for some years pre-packaged measures of coffee powder have been provided, these being enclosed in water-permeable containers made of paper, plastic, aluminium or the like, which are commonly called capsules. The espresso machine which uses this type of capsule is undoubtedly much simpler to use and provides a coffee infusion having characteristics which depend solely on the quantity of water used; basically those steps such as filling the filter and compressing it, which are not sufficiently automated for the product to be popular on a large scale, have been eliminated in practice. Moreover, the machine is very much cleaner overall and maintenance thereof does not involve particular problems.
The patent application No. WO 2005/002405 in the name of the same applicant describes an espresso coffee machine comprising a water storage tank, a pump for delivering said water to a boiler, a unit supplying the hot water and filter- holder means able to contain a measure of coffee powder, which is preferably pre- packaged: said supply unit and said filter-holder means are sealingly engaged with each other and the path of the engaging movement lies in a plane substantially perpendicular to the middle plane of engagement of said supply unit and said filter- holder means, the surfaces of said unit which supply said filter-holder means coming into contact only upon engagement of the latter. This machine has numerous undoubted advantages compared to the machines of the known type: however, a drawback consists in the fact that the capsule is not ejected from the filter holder using simple means which are able to operate immediately after extraction of the coffee infusion. In fact, if it is required to prepare a coffee immediately after one which has just been made, it is necessary to wait a few minutes until the capsule cools and can be handled, or it is necessary to use special instruments such as, pincers, for example, which make the operation decidedly unpractical.
The object of the present invention is therefore to provide a machine which is able to eject automatically the used pre-packaged capsules immediately after they have undergone extraction, without any complex and costly modifications being made to the structure thereof.
The present invention relates to an espresso coffee machine comprising a unit supplying the hot water, and filter-holder means able to contain a pre-packaged measure of coffee powder, said supply unit and said filter-holder means being sealingly engaged with each other and the path of the engaging movement lying in a plane substantially perpendicular to the middle plane of engagement of said supply unit and said filter-holder means, the surfaces of said unit supplying said filter-holder means coming into contact only upon engagement of the latter; said machine comprises an ejection member arranged in the vicinity of the periphery of said supply unit and projecting perpendicularly with respect to the middle plane of engagement of said supply unit and said filter-holder means, said ejection member being provided at its free end with means able to co-operate with the outwardly lying edge of said prepackaged capsule projecting outwards from said filter-holder means, so as to cause ejection thereof upon separation of the said filter-holder means from said supply unit. In a preferred embodiment, said ejection member comprises an arm which is resiliently stressed, connected at one end to the wall of said machine in the vicinity of said supply unit and provided at the opposite end with means for engaging with the peripheral edge of said pre-packaged capsule.
In another preferred embodiment, the middle plane of engagement of said supply unit and said filter-holder means is perpendicular to the base plane of the body of the machine; said filter-holder means comprise a closing flap which is hinged at one end with the body of said machine, the opposite end being provided with releasable engaging means intended to engage with suitable engaging means provided on the wall of the body of said machine. Advantageously, the engaging means of said closing flap are formed so that they take up the play existing between the said closing flap and the body of the machine.
Further advantages and characteristic features of the present invention will emerge from the following detailed description of an embodiment thereof, provided by way of a non-limiting example, with reference to the accompanying illustrative drawings in which:
Figure 1 is a side elevation view with parts cross-sectioned of a detail of an embodiment of the machine according to the present invention, shown at the moment of insertion of the pre-packaged capsule; Figure 2 is a view similar to that of Figure 1 , with the machine shown during dispensing of the coffee infusion;
Figure 3 shows the step involving ejection of the capsule after dispensing; and Figure 4 is a top plan view of the detail of the machine in the configuration shown in Figure 2; Figure 1 shows a detail relating to an embodiment of the invention; 1 denotes the wall of the body of the machine according to the present invention. The wall 1 has the threaded hole 201 inside which the unit 101 supplying hot water under pressure is inserted by means of engagement between the end-piece 1 1 1 provided with the thread 121 and the said threaded hole 201 ; the unit is provided with a supply spray head 131. The wall 1 has, projecting from it, below the unit 101 , the supports 301 , on which the closing flap 2 carrying the filter-holder means 102 is engaged by means of the pins 311. The arm 401 which is pivotably engaged at one end with the wall 1 by means of the pin 431 is situated immediately above the unit 101 , while at the other end it has the hook 421. Finally, the projecting bracket 501 on which the bar 51 1 is arranged is positioned at the top end of the wall 1. The filter holder 102 is situated substantially in the centre of the closing flap 2 and has a cavity 122, the external side walls 112 of which are tapered towards the outwardly lying edge. The bottom of the said cavity 122 has, formed therein, an axially projecting annular relief which supports the pre-packaged capsule 3 of coffee powder, provided with a radially projecting flange 103 which is situated on the outwardly lying edge of the said cavity 122. An axial hole 142 communicating with the duct 202 formed in the said closing flap 2 is formed in the centre of the bottom wall of the said cavity 122. The end of the said closing flap 2 opposite to that connected to the supports 301 has, arranged thereon, a projecting bracket 502 provided with a transverse bar 512 on which there is mounted, by means of the through-eyelet 322, the latch 302 provided at one end with the tooth 312, the other end thereof being pivotably connected to the pin 412 of a lever 402, by means of the through-eyelet 332. The lever 402 is provided at one end with the grip 422 and at the opposite end is pivotably connected to the pin 522 fastened to the bracket 502. The latch 302 is resiliency stressed by the spring 602 which is fixed at one end to the closing flap 2 by means of the screws 612.
Figure 4 clearly shows the system for closing the closing flap 2 onto the wall 1 of the machine according to the invention; the same numbers are used to identify identical parts. In particular, it can be seen how the lever 412 is stressed resiliency by means of 532 wound around the pin 522 and locked at its other end by the bar 512.
The operating principle of the machine according to the invention will become clear from that indicated below, with reference to that shown in Figures 2 and 3. After insertion of the pre-packaged capsule 3 in the filter holder 102, the closing flap 2 is closed against the wall 1 of the machine in the manner shown in Figure 2. In this situation the tooth 312 of the latch 302 engages on the bar 51 1 of the bracket 501 and closing is performed by pushing the lever 402 downwards until it is brought into the position shown. The unit 101 may supply hot water under pressure and the coffee infusion is formed. It should be noted that the latch 302, pivoting with respect to both the bar 512 of the bracket 502 and the pin 412 of the lever 402, allows closing of the closing flap able to take up any play and ensure sealed engagement of the filter holder 102 and the supply unit 101.
During the next step, shown in Figure 3, the latch 302 is opened, releasing its tooth 312 from engagement with the bar 51 1 , by pushing the handle 422 of the lever 402 upwards; with the movement of the closing flap 2 away from the wall 1 , the hooked end 421 of the arm 401 , which during the previous step rested against the external side wall of the filter holder 102, enters into contact with the radial flange 103 of the used pre-packaged capsule 3. As can be clearly seen, the capsule 3 will be extracted from the cavity 122 and will be able to fall, for example into the receiving drawer 10, shown in dot-dash lines in the figure, the ejected capsule also being shown in dot-dash lines and indicated by the number 3'. The said drawer 10 is inserted in an extractable manner in the frame of the coffee machine and provided with a gripping handle 1 1. The machine will therefore be ready for introduction of a new pre-packaged capsule of coffee powder. It is obvious that there must be a through-gap between the wall 1 of the machine and the closing flap 2 such as to allow the capsule 3 to pass through towards the drawer 10. This gap in the embodiment shown is obtained by leaving free the space situated between the supports 301 which project from the wall 1 and with which the closing flap 2 is hinged, the wall 1 and the closing flap 2. Obviously, it would be equally effective to have an opening formed in the wall underneath the supply unit 101 and in communication with the drawer 10; in this case it would not be necessary to provide any through-gap between closing flap 2 and wall 1 , and the said closing flap would act as a discharge chute.
The machine designed in this way solves in an extremely simple manner the problem of ejection of the used coffee powder capsules, with an obvious increase in the safety and ease of use, as well as cleanliness, owing to the fact that the capsule ejected from the machine does not have to be handled directly by the user.

Claims

1. Espresso coffee machine comprising a unit (101 ) supplying the hot water, and filter-holder means (2, 102) able to contain a pre-packaged measure (3) of coffee powder, said supply unit (101 ) and said filter-holder means (2, 102) being sealingly engaged with each other and the path of the engaging movement lying in a plane substantially perpendicular to the middle plane of engagement of said supply unit (101 ) and said filter-holder means (2, 102), the surfaces of said unit (101 ) supplying said filter-holder means (2, 102) coming into contact only upon engagement of the latter, characterized in that said machine comprises an ejection member (401 ) arranged in the vicinity of the periphery of said supply unit (101 ) and projecting perpendicularly with respect to the middle plane of engagement of said supply unit (101 ) and said filter-holder means (2, 102), said ejection member (401 ) being provided at its free end with means (421 ) able to co-operate with the outwardly lying edge (103) of said pre-packaged capsule (3) projecting outwards from said filter-holder means (2, 102), so as to cause ejection thereof upon separation of the said filter-holder means (2, 102) from said supply unit (101 ).
2. Machine according to Claim 1 , in which said ejection member comprises an arm (401 ) which is resiliently stressed (431 ), connected at one end to the wall (1 ) of said machine in the vicinity of said supply unit (101 ) and provided at the opposite end with means (421 ) for engaging with the peripheral edge (103) of said pre-packaged capsule (3).
3. Machine according to Claim 1 or 2, in which the middle plane of engagement of said supply unit (101 ) and said filter-holder means (102) is perpendicular to the base plane of the body of the machine.
4. Machine according to any one of Claims 1 to 3, in which said filter- holder means comprise a closing flap (2) hinged at one end with the body (1 , 301 ) of said machine, the opposite end being provided with releasable engaging means (302, 402) intended to engage with suitable engaging means (501 , 51 1 ) provided on the wall of the body of said machine.
5. Coffee machine according to any one of the preceding Claims 1 to 4, in which said filter-holder means comprise a filter holder (102) comprising a substantially cylindrical cavity (122) and an external side wall (1 12) tapered towards the outwardly lying edge of said cavity (122).
6. Machine according to Claim 4 or 5, in which said releasable engaging means of said closing flap comprise a latch (302) provided at one end with an engaging tooth (312) and pivoting centrally with respect to a pin (512) integral with said closing flap (2) and at the opposite end with respect to a pin (412) integral with an actuating lever (402).
7. Machine according to Claim 6, in which said latch (302) is provided with resilient stressing means (602) connected to said closing flap (2).
8. Machine according to any one of Claims 3 to 7, in which the zone situated underneath said supply unit (101 ) is provided with a through-gap for discharging a used capsule (31), communicating with a receiving container (10) arranged extractably in said machine.
PCT/EP2006/065223 2005-09-14 2006-08-10 Espresso coffee machine WO2007031378A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN2006800323054A CN101304681B (en) 2005-09-14 2006-08-10 Espresso coffee machine
PL06778220T PL1937117T3 (en) 2005-09-14 2006-08-10 Espresso coffee machine
DE602006013170T DE602006013170D1 (en) 2005-09-14 2006-08-10 ESPRESSO COFFEE MACHINE
EP06778220A EP1937117B1 (en) 2005-09-14 2006-08-10 Espresso coffee machine
AT06778220T ATE461643T1 (en) 2005-09-14 2006-08-10 ESPRESSO COFFEE MACHINE
US12/036,307 US7827905B2 (en) 2005-09-14 2008-02-25 Espresso coffee machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITGE2005A000072 2005-09-14
IT000072A ITGE20050072A1 (en) 2005-09-14 2005-09-14 ESPRESSO COFFEE MACHINE.

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/036,307 Continuation US7827905B2 (en) 2005-09-14 2008-02-25 Espresso coffee machine

Publications (2)

Publication Number Publication Date
WO2007031378A2 true WO2007031378A2 (en) 2007-03-22
WO2007031378A3 WO2007031378A3 (en) 2007-05-10

Family

ID=37806713

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/065223 WO2007031378A2 (en) 2005-09-14 2006-08-10 Espresso coffee machine

Country Status (11)

Country Link
US (1) US7827905B2 (en)
EP (1) EP1937117B1 (en)
CN (1) CN101304681B (en)
AT (1) ATE461643T1 (en)
DE (1) DE602006013170D1 (en)
ES (1) ES2343140T3 (en)
IT (1) ITGE20050072A1 (en)
PL (1) PL1937117T3 (en)
PT (1) PT1937117E (en)
RU (1) RU2404700C2 (en)
WO (1) WO2007031378A2 (en)

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US20080141865A1 (en) 2008-06-19
PT1937117E (en) 2010-04-29
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CN101304681B (en) 2010-08-11
WO2007031378A3 (en) 2007-05-10
CN101304681A (en) 2008-11-12
EP1937117B1 (en) 2010-03-24
RU2404700C2 (en) 2010-11-27
ATE461643T1 (en) 2010-04-15
PL1937117T3 (en) 2010-07-30
EP1937117A2 (en) 2008-07-02

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