WO2012107246A1 - Device for extracting coffee grounds and for cleaning the filter holder - Google Patents
Device for extracting coffee grounds and for cleaning the filter holder Download PDFInfo
- Publication number
- WO2012107246A1 WO2012107246A1 PCT/EP2012/001179 EP2012001179W WO2012107246A1 WO 2012107246 A1 WO2012107246 A1 WO 2012107246A1 EP 2012001179 W EP2012001179 W EP 2012001179W WO 2012107246 A1 WO2012107246 A1 WO 2012107246A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- filter holder
- cylindrical element
- hollow cylindrical
- cleaning
- coffee grounds
- Prior art date
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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
Definitions
- the hollow cylindrical element 1 is metal or steel made.
Abstract
Device (20) for extracting coffee grounds and for cleaning the filter holder (10) comprising: an hollow cylindrical element (1); a motor (4) fixed on a side of the hollow cylindrical element (1) equipped with a first shaft (5); a transmission box (6) placed inside the hollow cylindrical element (1) and able to receive the first shaft (5) and transmitting the motion to a second shaft (7); an extraction element (8), mounted on the second shaft (7), comprising a blade having sectors (8a) and brush elements (8b); a photodetector system (9), placed inside the hollow cylindrical element (1), above the extraction element (8), configured to activate the motor (4) when the filter holder (10) is located inside the hollow cylindrical element (1).
Description
DESCRIPTION
Title: Device for extracting coffee grounds and for cleaning the filter holder
The present invention relates to a device for extracting the ground coffee from the filter holder, in particular for automatically extracting the ground coffee from the filter holder of an espresso machines with a complete cleaning of the filter holder.
In the sector of espresso machines and other similar machines, it's very well known that the user prepares the coffee dose to be inserted in the filter holder, he compresses it and then inserts the filter holder inside the machine in order the coffee can be brewed into a cup. At the end of the coffee preparation, the user removes the filter holder from the machine and let the ground coffee falls into a waste container after having hit, by hand, the filter holder against a wood element positioned in correspondence of the waste container. This operation involves some problems due to the number of times the coffee has to be prepared, especially in restaurants and coffee bars, and to the fact that the filter holder is reused without cleaning it between a coffee and another one.
A first known solution to these problems is describes in the patent application EP1803380, published on July 4th, 2007, to Da Silva and Campos da Costa, concerning a device for extracting ground coffee comprising the rotation of an extracting head determined only by the force exerted putting the filter holder on the head. Nevertheless, this solution solves only partially the above problems.
A second solution is described in the patent application WO2009127983, published on October 22th, 2009, to Ambrosini Marco, concerning an automatic device for extracting the ground coffee having an electric motor which can be activated by pressure actuators or electric actuators.
Even if this solution solves the problem of easy management and of the cleaning of the waste container of the espresso machines, it doesn't solve the problem of cleaning the filter holder and, in addition, it introduces the drawback of having a motor inside the waste container, that's potentially dangerous for the user and difficult to be subjected to maintainance .
A third known solution for an automatic espresso and cappuccino machine is disclosed in the US patent N. 5,490,447 issued on February 13th, 1996 to Faema S.p.A. This patent describes an automatic espresso and cappuccino machine in which a number of individual filter units are movable with respect to a coffee filling station, a coffee dispensing station and a filter cleaning station. Four separate filter units are carried by the filter indexing device and are selectively moved to each of the three stations mentioned above. Each of the filter units includes a filter holder having an open top or inlet, an outlet and a filter disc mounted between the inlet and outlet. After the espresso or cappuccino is brewed at the coffee dispensing station, the filter indexing device moves each filter unit from the coffee dispensing station to a filter cleaning station having a rotatable and vertically reciprocating cleaning blade or auger, where the cake or layer of coffee grounds is removed and allowed to fall by gravity into a waste container.
Whereas the filter indexing device maintains the filter holder of each filter unit in an upright position at the coffee filling station and at the coffee dispensing station, each filter holder is turned upside down by the filter indexing device in the course of movement to the filter cleaning station. In this inverted position, each filter holder is aligned with the cleaning blade or auger which is moved vertically upwardly into the interior of the filter holder and rotated to dislodge the cake or compacted ground coffee therein. The movement of the cleaning blade is
associated to a motor. Then, the grounds fall by gravity into a waste container for disposal and the filter holder of each filter unit is returned to the upright position in the course of movement from the filter cleaning station to the coffee filling station in preparation for another brewing operation. Even if this solution is advantageous under many aspects, the motor is activated manually when the filter holder comes into contact with the cleaning blade.
Another known solution is disclosed in the patent application N. FR2840521 published on December 12th, 2003 to Yilmaz Ali and describes a filter holder cleaner consisting of a housing containing a rotary brush with surface and side bristles, and a hole for fitting it to the end of a drive motor shaft. The motor is located in a small inner housing on a support with four vanes connecting it to the outer housing. When a filter holder is placed on the brush its handle depresses a spring- loaded switch that starts the motor and brush turning.
Even if this solution is more compact having the motor comprised inside the housing, continues to present the problem that the motor is activated manually when the filter holder comes into contact with the brush and the side bristles .
Aim of the present invention is to provide a device for extracting coffee grounds and for cleaning the filter holder, in particular activating the motor in a simple, fast and automatic way, reducing the fabrication costs and adaptable either to existing or to new machines.
According to the present invention a device for extracting coffee grounds and for cleaning the filter holder is realized, as defined in the claim 1.
For a better understanding of the present invention a preferred embodiment is described, by way of non limitative example, referring to the accompanying drawings, in which:
- figure 1 is a three-dimensional view of a device for extracting coffee grounds and for cleaning the filter holder, according to the invention;
- figures 2a-2b are three-dimensional views of a hollow cylindrical element comprised in the device for extracting coffee grounds and for cleaning the filter holder, according to the invention;
figure 3 is a three-dimensional view of a motor, a transmission box, two shafts and an extraction element coupled with the hollow cylindrical element comprised in the device for extracting coffee grounds and for cleaning the filter holder, according to the invention;
- the figure 4 is a three-dimensional detailed view of the motor and the extraction element coupled with the hollow cylindrical element comprised in the device for extracting coffee grounds and for cleaning the filter holder, according to the invention.
Referring to those figures, and, in particular, to the figure 1, a device 20 for extracting coffee grounds and for cleaning a filter holder of an espresso machine is shown, according to the invention. The device 20 comprises a hollow cylindrical element 1 having a slot la placed on its upper part able to allocate the handle of a filter holder 10 guiding its positioning on the device 20. The hollow cylindrical element 1 is equipped also with two L shaped brackets 2a and 2b mounted on opposite sides, each one having a hole 2c useful for fixing the cylindrical element 1 hollow cylindrical element 1 on a plane or walls. The brackets 2a and 2b are fixed, trough one side of the L shape, to the hollow cylindrical element 1 in correspondence of two holes lc comprised laterally on opposite sides of the hollow cylindrical element 1. Trough a rotation of the other side of the L shape of the brackets 2a and 2b, the anchorage on a plane or on walls or on inclined surfaces can be allowed fixing.
According to an aspect of the invention, the slot la is provided with brush elements, not showed, for removing a residual material from the filter holder 10.
According to another aspect of the invention, the slot la is provided with a gasket, not showed, able to limit the vibrations and to mitigate noise.
According to another aspect of the invention, the hollow cylindrical element 1 is metal or steel made.
The figures 2a and 2b show the hollow cylindrical element 1 in more details.
According to an aspect of the invention, the hollow cylindrical element 1 is equipped, in the inferior portion, with a socket Id useful for coupling the hollow cylindrical element 1 to a container bag, not showed in the figure.
According to another aspect of the invention, the hollow cylindrical element 1 is equipped, on a side, with a first trough hole lb having a second and a third trough holes le placed respectively at left and at right of the trough hole lb, which are useful for fixing the hollow cylindrical element 1 to a motor 4.
As the figure 3 shows, the motor 4 is coupled to a first shaft 5 entering inside the hollow cylindrical element 1 via the trough hole lb and placing perpendicularly to a central axis X of the hollow cylindrical element 1. A transmission box 6 is placed inside the hollow cylindrical element 1 so that it is able to receive the first shaft 5 and to transmit the motion to a second shaft 7 developing inside an upper part of the hollow cylindrical element 1 along the central axis X. An extraction element 8, being mounted on the second shaft 7, comprises a pallet having two or more sectors 8a, each one having a brush element 8b.
Advantageously, according to the invention, the pallet is shaped so that it can enter inside the filter holder 10, extracting the coffee grounds from all types of filter holders.
Advantageously, according to the invention, the brushing elements 8b, which are preferably positioned on the pallet periphery, clean the angular portions of the filter holder 10.
In addition, as shown in figure 1 and 2, a plurality of photodetectors 9 are placed inside the hollow cylindrical element 1, above the extraction element 8 and are configured for activating the motor 4 when the filter holder 10 is located inside the hollow cylindrical element 1 and becomes able to be revealed.
According to an aspect of the invention, the motor 4 is a low voltage type motor.
The figure 4 shows a detailed view of the coupling of the motor 4 and the extraction element 8 with the transmission box 6. More in particular, the first shaft 5 and the second shaft 7 are coupled with the transmission box 6 trough conical wheels 11a and lib, configured in a manner that the first shaft 5 transmits the motion to the second 7 inside the transmission box 6.
Advantageously, according to the invention, the conic wheels 11a and lib allow the regulation of the laps of the motor to be transmitted to the extraction element 8 on respect of the rotation laps of the shaft 5.
On functioning, the user executes the first operation of unfastening the handle of the filter holder 10 from the espresso machine and rotates it of 180° inverting the filter holder 10. Then, the user insert the handle of the filter holder 10 on the hollow cylindrical element 1, with its handle allocated in the slot la, so that the filter holder 10 is stacked on the extraction element 8. The presence of the handle of the filter holder 10 inside the hollow cylindrical element 1 is revealed by the system of photodetectors 9 which activates the motor 4. The motor 4 transmits the motion, via the shaft 5, to the transmission box 6 and, at the end, to the shat 7 connected to the extraction element 8.
Consequently, the extraction element 8 rotates and cleans the filter holder 10 trough the movements of the brushing elements 8b . At the same time, the ground coffee is collected in a container bag that can be substituted when it is full. The device for extracting coffee grounds and for cleaning the filter holder of an espresso machine according to the invention allows to extract the coffee ground in a completely automatic way.
Another advantage consists in the possibility to mounting the device for extracting coffee grounds and for cleaning the filter holder in a simple manner in an espresso machine.
Moreover, the device for extracting coffee grounds and for cleaning the filter holder according to the invention complies with the security European and not European standards.
Another advantage consists in the possibility to easily do the maintainance of the espresso machine.
Another advantage consists in the possibility to deeply clean the filter holder of the espresso machine.
At the end, the device according to the invention makes the operation of cleaning the filter holder quicker and costly saving.
It should be clear that other modifications and embodiments carried out to the described device can be done falling within the scope of the present invention, as defined in the appended claims.
Claims
1. Device (20) for extracting coffee grounds and for cleaning the filter holder (10), characterized in comprising:
- an hollow cylindrical element (1) having, on its upper part, a slot (la) able to guide the positioning of the filter holder (10) allocating its handle, and laterally equipped with at least one trough hole (lb) for coupling the cylindrical element (1) to a container bag and with brackets (2a, 2b) allowing the cylindrical element (1) to be fixed on a plane or walls;
- a motor (4) fixed on a side of the hollow cylindrical element (1) equipped with a first shaft (5) entering inside the trough hole (lb) and placing perpendicularly to a central axis X of the hollow cylindrical element (1);
a transmission box (6) placed inside the hollow cylindrical element (1) and able to receive the first shaft (5) and transmitting the motion to a second shaft (7) developing inside the upper part of the hollow cylindrical element (1) along the central axis X;
- an extraction element (8), mounted on said second shaft (7), comprising a blade having sectors (8a) and brush elements (8b) ;
- a photodetector system (9), placed inside the hollow cylindrical element (1), above said extraction element (8), configured to activate the motor (4) when the filter holder (10) is located inside the hollow cylindrical element (1) and becomes able to be revealed.
2. Device (20) for extracting coffee grounds and for cleaning the filter holder (10) according to the claim 1, characterized in that said motor (4) is a low voltage type motor .
3. Device (20) for extracting coffee grounds and for cleaning the filter holder (10) according to the claim 1, characterized in that the first shaft (5) transmits the motion to the second (7) inside the transmission box (6) trough conical wheels.
4. Device (20) for extracting coffee grounds and for cleaning the filter holder (10) according to the claim 1, characterized in that said slot (la) is provided with brush elements for removing the residual material from the filter holder (10) .
5. Device (20) for extracting coffee grounds and for cleaning the filter holder (10) according to the claim 1, characterized in that said slot (la) is provided with a gasket able, to limit the vibrations and to mitigate noise.
6. Device (20) for extracting coffee grounds and for cleaning the filter holder (10) according to the claim 1, characterized in that the brackets (2) are fixed in correspondence of holes (lc) comprised laterally in the hollow cylindrical element (1).
7. Device (20) for extracting coffee grounds and for cleaning the filter holder (10) according to the claim 1, characterized in that the container bag (3) is coupled to the hollow cylindrical element (10) via a socket (Id) located in the inferior portion of the hollow cylindrical element (10) .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITCZ2011A000001A IT1403560B1 (en) | 2011-01-20 | 2011-01-20 | DEVICE FOR THE EXTRACTION OF COFFEE GROUNDS AND THE FILTER HOLDER CLEANING |
| ITCZ2011A000001 | 2011-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2012107246A1 true WO2012107246A1 (en) | 2012-08-16 |
| WO2012107246A8 WO2012107246A8 (en) | 2013-07-11 |
Family
ID=43975306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2012/001179 WO2012107246A1 (en) | 2011-01-20 | 2012-03-16 | Device for extracting coffee grounds and for cleaning the filter holder |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | IT1403560B1 (en) |
| WO (1) | WO2012107246A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU92096B1 (en) * | 2012-11-16 | 2014-05-19 | Artur De Bastos Almeida | Rotary receptacle cleaning head |
| EP2732743A1 (en) | 2012-11-16 | 2014-05-21 | Artur De Bastos Almeida | Drawer-shaped reservoir for collecting spent coffee grounds |
| CN105662146A (en) * | 2016-04-22 | 2016-06-15 | 杭州云蜂工业设计有限公司 | Direct drinking machine |
| ITUB20154733A1 (en) * | 2015-10-20 | 2017-04-20 | Ezio Cadamuro | ROTATING BRUSH, PARTICULARLY FOR CLEANING COFFEE MACHINE FILTERS? |
| WO2019074448A3 (en) * | 2017-10-13 | 2019-05-23 | Cafelier D.O.O. | Filter cleaner for coffee machine filters |
| IT201800003418A1 (en) * | 2018-03-09 | 2019-09-09 | Cleto Palmieri | APPARATUS FOR THE ELIMINATION OF RESIDUES OF COFFEE OR SIMILAR FROM THE FILTERS FOR THE DISPENSING OF THE INFUSION |
| CN113712480A (en) * | 2021-08-30 | 2021-11-30 | 深圳市觅晒科技有限公司 | Coffee powder bowl cleaning machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5490447A (en) | 1989-07-05 | 1996-02-13 | Faema S.P.A. | Automatic espresso and cappuccino machine |
| FR2840521A1 (en) | 2002-06-10 | 2003-12-12 | Ali Yilmaz | Coffee machine filter holder cleaner comprises rotary brush on shaft of motor inside housing |
| EP1803380A2 (en) | 2005-08-12 | 2007-07-04 | Manuel Antonio Da Silva Pinto Ferreira | Ecological device for quick removal and without knocking impact of the spent espresso coffee grounds |
| WO2008030577A2 (en) * | 2006-09-07 | 2008-03-13 | Keurig, Incorporated | Method and apparatus for beverage formation |
| WO2009127983A1 (en) | 2008-04-18 | 2009-10-22 | Marco Ambrosini | Extraction device for coffee grounds or similar |
-
2011
- 2011-01-20 IT ITCZ2011A000001A patent/IT1403560B1/en active
-
2012
- 2012-03-16 WO PCT/EP2012/001179 patent/WO2012107246A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5490447A (en) | 1989-07-05 | 1996-02-13 | Faema S.P.A. | Automatic espresso and cappuccino machine |
| FR2840521A1 (en) | 2002-06-10 | 2003-12-12 | Ali Yilmaz | Coffee machine filter holder cleaner comprises rotary brush on shaft of motor inside housing |
| EP1803380A2 (en) | 2005-08-12 | 2007-07-04 | Manuel Antonio Da Silva Pinto Ferreira | Ecological device for quick removal and without knocking impact of the spent espresso coffee grounds |
| WO2008030577A2 (en) * | 2006-09-07 | 2008-03-13 | Keurig, Incorporated | Method and apparatus for beverage formation |
| WO2009127983A1 (en) | 2008-04-18 | 2009-10-22 | Marco Ambrosini | Extraction device for coffee grounds or similar |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU92096B1 (en) * | 2012-11-16 | 2014-05-19 | Artur De Bastos Almeida | Rotary receptacle cleaning head |
| EP2732742A1 (en) | 2012-11-16 | 2014-05-21 | Artur De Bastos Almeida | Rotating head for the cleaning of a receptacle |
| EP2732743A1 (en) | 2012-11-16 | 2014-05-21 | Artur De Bastos Almeida | Drawer-shaped reservoir for collecting spent coffee grounds |
| ITUB20154733A1 (en) * | 2015-10-20 | 2017-04-20 | Ezio Cadamuro | ROTATING BRUSH, PARTICULARLY FOR CLEANING COFFEE MACHINE FILTERS? |
| EP3158901A1 (en) * | 2015-10-20 | 2017-04-26 | Ezio Cadamuro | Rotating brush, in particular for the cleaning of coffee machine filters |
| CN105662146A (en) * | 2016-04-22 | 2016-06-15 | 杭州云蜂工业设计有限公司 | Direct drinking machine |
| CN105662146B (en) * | 2016-04-22 | 2018-08-14 | 杭州云蜂工业设计有限公司 | A kind of Drinking fountain |
| WO2019074448A3 (en) * | 2017-10-13 | 2019-05-23 | Cafelier D.O.O. | Filter cleaner for coffee machine filters |
| IT201800003418A1 (en) * | 2018-03-09 | 2019-09-09 | Cleto Palmieri | APPARATUS FOR THE ELIMINATION OF RESIDUES OF COFFEE OR SIMILAR FROM THE FILTERS FOR THE DISPENSING OF THE INFUSION |
| CN113712480A (en) * | 2021-08-30 | 2021-11-30 | 深圳市觅晒科技有限公司 | Coffee powder bowl cleaning machine |
Also Published As
| Publication number | Publication date |
|---|---|
| ITCZ20110001A1 (en) | 2012-07-21 |
| IT1403560B1 (en) | 2013-10-31 |
| WO2012107246A8 (en) | 2013-07-11 |
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