US20130306115A1 - Integrated device for dispensing washing agents for a washing machine, particularly a dishwasher - Google Patents

Integrated device for dispensing washing agents for a washing machine, particularly a dishwasher Download PDF

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Publication number
US20130306115A1
US20130306115A1 US13/980,752 US201213980752A US2013306115A1 US 20130306115 A1 US20130306115 A1 US 20130306115A1 US 201213980752 A US201213980752 A US 201213980752A US 2013306115 A1 US2013306115 A1 US 2013306115A1
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US
United States
Prior art keywords
actuator
cover
releasing device
energization
releasing
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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.)
Abandoned
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US13/980,752
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English (en)
Inventor
Giuseppe Marone
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.)
Bitron SpA
Original Assignee
Bitron SpA
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Publication date
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Assigned to BITRON S.P.A. reassignment BITRON S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MARONE, GIUSEPPE
Publication of US20130306115A1 publication Critical patent/US20130306115A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4409—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants by tipping containers or opening their lids, e.g. with the help of a programmer

Definitions

  • the present invention relates to a device for dispensing washing agents for a washing machine, particularly for a dishwasher.
  • the invention relates to a dispensing device comprising a first releasing device for a detergent, including a receptacle for the detergent and an associated openable cover, and a second releasing device for a rinsing agent, the releasing devices being intended to be activated at successive times in a washing cycle by successive energizations of a single electrically operable actuator which is mechanically coupled thereto in such a way that a first energization of the actuator is able to modify the state of the first releasing device without changing the state of the second releasing device, and a successive energization of the actuator is such as to cause the activation of the second releasing device.
  • One object of the present invention is to provide a dispensing device of the type defined above which has a highly simplified structure and can be produced in a reasonably economical way.
  • a further object of the invention is to provide a dispensing device of this type which can enable the dispensing of the detergent to be divided into stages, for example for a pre-wash stage and subsequently for the actual washing stage.
  • an integrated dispensing device for washing agents of the type defined initially characterized in that the aforesaid actuator is coupled to the cover of the first releasing device by means of a releasable retaining mechanism configured in such a way that a first energization and the successive de-energization of the actuator can cause the passage of the cover to a pre-opening condition and an opening condition, respectively.
  • the associated detergent receptacle when the cover of the first releasing device is in the aforesaid pre-opening condition, the associated detergent receptacle remains substantially closed, and therefore the detergent is not released into the wash chamber of the machine. In this case, the complete dispensing of the detergent takes place as a result of the de-energization of the actuator immediately after the aforesaid first energization.
  • the associated detergent receptacle when the cover of the first releasing device is in the aforesaid pre-opening condition, the associated detergent receptacle is open, but to a lesser degree, such that only a limited quantity of the detergent contained therein can be dispensed into the wash chamber of the machine.
  • the dispensing of the detergent by the first releasing device is completed on the de-energization of the actuator immediately after the first energization.
  • the actuator remains energized between the first energization of the actuator and the immediately successive de-energization. It is also possible for the actuator to be made in such a way that a reduced amount of electrical energy is required to maintain its state of energization.
  • FIG. 1 is a perspective view from the front of an integrated dispensing device according to the present invention
  • FIG. 2 is a sectional view taken along the line II-II of FIG. 1 ;
  • FIG. 3 is a perspective view showing in a schematic way an embodiment of a retaining mechanism which, in an integrated dispensing device according to the invention, couples the actuator to the cover of the first releasing device;
  • FIG. 4 is a partial view, in cross section taken along the line IV-IV of FIG. 3 , showing the aforesaid retaining device in a first operating condition;
  • FIG. 5 is a schematic and partly sectional view showing the procedures for coupling the actuator device of an integrated dispenser according to the invention to the detergent releasing device and to the rinsing agent releasing device, in a first operating condition;
  • FIG. 6 is a view similar to that shown in FIG. 5 , and shows a second operating condition
  • FIG. 7 is a view similar to that of FIG. 4 , and shows the condition of the aforesaid retaining mechanism resulting from a first energization of the actuator device;
  • FIG. 8 is a view similar to that of FIG. 7 , and shows the condition of the aforesaid retaining mechanism following the first energization of the actuator device;
  • FIG. 9 is a view similar to that shown in FIG. 6 , and shows a further operating condition of the actuator.
  • FIG. 10 is a time diagram illustrating the procedures for energizing the actuator device and the integrated dispensing device according to the invention.
  • the number 1 indicates the whole of an integrated dispensing device for washing agents for a dishwasher, made according to the present invention.
  • the integrated dispensing device 1 comprises a housing 1 a of moulded plastic material, in which a releasing device 2 for dispensing a detergent, particularly a powder detergent, and an adjacent second releasing device 3 for dispensing a rinsing agent are formed in a known way.
  • the releasing device 2 for the detergent comprises an essentially bowl-shaped receptacle 4 ( FIG. 2 ) associated with a cover 5 ( FIG. 1 ).
  • This cover is, for example, mounted rotatably about an axis indicated by A-A in FIG. 1 .
  • the cover 5 could also be coupled to the body 1 a in a translatable or rotatable-translatable way.
  • the cover 5 is associated with a resilient member such as a torsion spring which tends to cause the cover to move from the closed position shown in FIG. 1 to an open position by oscillation about the axis A-A in the direction of the arrow B of FIGS. 1 and 3 .
  • a resilient member such as a torsion spring which tends to cause the cover to move from the closed position shown in FIG. 1 to an open position by oscillation about the axis A-A in the direction of the arrow B of FIGS. 1 and 3 .
  • the releasing device 2 for the rinsing agent is also of a known type. It comprises a receptacle 6 ( FIG. 2 ) for containing a quantity of rinsing agent corresponding to a plurality of doses.
  • shut-off valve indicated as a whole by 7 in FIGS. 2 , 5 , 6 and 9 .
  • this valve which is normally closed, is interposed on a conduit adapted to enable the receptacle 6 to communicate with the wash chamber of the machine.
  • valve 7 is positioned near the lower part of the receptacle 6 for the rinsing agent.
  • the valve 7 comprises a valve seat 8 , and a plug 9 carried by an operating rod 10 , whose axial position is controllable by means of an actuator device indicated as a whole by 11 ( FIGS. 2 , 5 , 6 and 9 ).
  • the actuator 11 is of the electrically operable type and, as described more fully below, also controls the activation of the release device 2 for the detergent.
  • the actuator device 11 is of the solenoid type, and comprises a winding or solenoid 12 , an associated frame 13 of material capable of conducting a magnetic flux, and a core 14 which is movable within the solenoid.
  • the frame 13 and the winding 12 are mounted in a fixed position in the housing 1 a of the integrated dispensing device 1 , these elements being conveniently inclined, in a substantially vertical plane, with respect to the horizontal direction, at an angle which is advantageously in the range from 30° to 60°, and preferably approximately 45°.
  • the core 14 is axially movable with respect to the above elements within the solenoid 12 , in a corresponding inclined direction.
  • the frame 13 has an upper branch 13 a in which an aperture 13 b is formed.
  • a portion 13 c of the frame 13 , surrounding the aperture 13 b, has an essentially trunco-conical outwardly projecting shape ( FIGS. 5 , 6 and 9 ).
  • the end portion 14 a of the core 14 facing the formation 13 c of the frame 13 is also of essentially trunco-conical shape.
  • a point 15 a of a lever 15 extends through the aperture 13 b of the magnetic frame 13 , the lever extending radially from the periphery of a shaft 16 mounted rotatably in the housing 1 a of the integrated dispensing device 1 about a fixed axis indicated by C-C (see also FIG. 3 ), in a position conveniently close to the axis A-A of oscillation of the cover 5 .
  • FIG. 2 the assembly comprising the shaft 16 , the lever 15 , the actuator 11 and the valve device 7 is shown in an inclined position.
  • FIGS. 5 , 6 and 9 the same assembly is shown in a rotated position, wherein the axis of the movable core 14 is vertical, in order to facilitate the illustration of the relative movements included in its operation.
  • a radial arm 17 terminating in a hammer head formation 18 , extends from the shaft 16 .
  • two retaining members 19 and 20 In the proximity of the arm 17 , two retaining members 19 and 20 , substantially parallel to and facing each other, of which the first is shorter than the second, extend from the cover 5 of the releasing device of the detergent 3 .
  • These retaining elements 19 and 20 have respective bevelled retaining catches 19 a, 20 a at their distal ends, these catches essentially facing each other.
  • the hammer head formation 18 has two opposite bevelled ends 18 a and 18 b, facing the retaining element 19 and the retaining element 20 respectively.
  • the cover 5 of the releasing device 2 for the detergent is closed ( FIGS. 1 and 3 ) and the actuator 11 is de-energized ( FIG. 5 )
  • the end 18 a of the hammer head formation 18 is engaged with the catch 19 a of the retaining element 19 of the cover 5 , as shown in FIGS. 3 and 4 .
  • the hammer head formation 18 therefore retains the cover 5 in the closed condition.
  • the point 15 a of the lever 15 bears on the end 14 a of the movable core 14 until the actuator 11 is de-energized.
  • This core 14 is also coupled to the shut-off valve 7 , in the way which will now be described with reference to FIGS. 5 , 6 and 9 .
  • the lower end of the core 14 has a radially projecting disc-shaped formation 14 b, which extends between two opposing retaining arms 21 a extending from a plate-like element 21 which is integral with the operating rod 10 .
  • the retaining arms 21 a are essentially parallel to each other and to the axis of the core 14 , and their distal ends are provided with respective retaining catches 21 b which face each other.
  • a helical spring 22 tends to move the plate-like element 21 away from the actuator 11 by pushing it towards bearing surfaces formed by a casing 23 ( FIG. 2 ) which encloses the whole device 11 .
  • the terminal disc-shaped formation 14 b of the core 14 extends between the plate-like element 21 and the retaining catches 21 b, with an ample clearance in the direction of the axis of the core 14 . Additionally, when the actuator 11 is de-energized ( FIGS. 2 and 5 ) the disc-shaped formation 14 b bears against the plate-like element 21 , in a position spaced apart from the retaining catches 21 b.
  • the integrated dispensing device according to the invention as described above operates, essentially, in the following manner.
  • the integrated dispensing device is in the conditions shown in FIGS. 1 to 5 .
  • the cover 5 of the detergent releasing device is retained in the closed position by the engagement of the end 18 a of the hammer head element 18 with the retaining catch 19 a ( FIGS. 3 and 4 ), and the core 14 bears on the plate-like element 21 ( FIGS. 2 and 5 ), which is held against the stop surfaces of the casing 23 by the spring 22 .
  • the valve 7 which controls the supply of the rinsing agent is closed.
  • a control unit for the operation of the dishwasher causes a first energization of the actuator 11 by sending a current to the solenoid 12 .
  • the core 14 is then “pulled” upwards against the action of gravity.
  • the movement of the core 14 causes a rotation of the lever 15 (in the anticlockwise direction as seen by an observer of FIGS. 5 and 6 ) and a corresponding rotation of the shaft 16 , together with the arm 17 and the associated hammer head formation 18 .
  • the end 18 a of the hammer head formation 18 is then disengaged from the retaining catch 19 a, and the cover 5 , being pushed by the spring which tends to move it away from the closed position, undergoes a small degree of rotation, in the direction indicated by the arrow B in FIG. 3 , about the axis A-A, until the end 18 b of the hammer head formation 18 engages with the retaining catch 20 a ( FIG. 7 ).
  • the cover 5 is then retained again, in a new position defined above as the “pre-opening” position.
  • the extent of the movement of the cover 5 depends on the length of the retaining element 20 relative to that of the retaining element 19 .
  • the condition of retention of the cover 5 shown in FIG. 7 corresponds to the condition of the actuator 11 shown in FIG. 6 , in which the movable core 14 has been moved upwards by the energization of the solenoid 12 , but its disc-shaped formation 14 b, which has approached the retaining catches 21 b, is still at a certain distance from these catches. In this condition, therefore, the valve 7 controlling the supply of the rinsing agent remains in the initial closed condition.
  • the control unit of the machine causes the first de-energization of the solenoid 12 .
  • the core 14 returns to the condition of FIGS. 2 and 5 , by gravity and/or by the action of resilient means associated with the lever 15 , while the shaft 16 and the associated arms 15 and 17 rotate (in a clockwise direction as seen by an observer of FIGS. 5 and 6 ) under the action of an associated return spring (not shown).
  • the de-energization of the solenoid 12 of the actuator 11 does not change the condition of the control valve 7 for the dispensing of the rinsing agent, which remains closed.
  • the control unit of the dishwasher causes a second de-energization of the solenoid 12 : the core 14 is again “pulled” upwards and causes a rotation of the lever 15 , the shaft 16 and the arm 17 with the hammer formation 18 .
  • This rotation of the arm 17 and of the hammer head formation 18 can now move through a greater angle than in the rotation resulting from the first energization of the solenoid 12 , since the rotation of the hammer head formation 18 is no longer limited by the presence of the retaining element 20 , 20 a.
  • the second energization of the solenoid 12 therefore causes a greater upward travel of the core 14 , such that its terminal disc-shaped formation 14 b engages the catches 21 b of the plate-like element 21 and pulls the latter, together with the shaft 10 and the plug 9 , away from the valve seat 8 .
  • the valve 7 is thus opened in order to dispense a dose of rinsing agent.
  • the dispensing of the rinsing agent continues until a successive time, indicated by t 4 in FIG. 10 , in which the control unit of the machine causes a second de-energization of the solenoid 12 of the actuator 11 and the return of the core 14 , the plate-like element 21 , the shaft 10 and the plug 9 to their respective initial positions, thus closing the rinsing agent dispensing valve 7 .
  • the cover 5 of the detergent releasing device can be returned manually to the closed position, after a new quantity of detergent has been placed in the associated receptacle 4 ( FIG. 2 ).
  • the cover 5 is closed, the chamfers or bevels of the retaining catches 20 a, 19 a and the corresponding chamfers or bevels of the ends 18 a, 18 b of the hammer head formation 18 make it possible to restore the initial situation shown in FIGS. 3 and 4 .

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  • Washing And Drying Of Tableware (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Detergent Compositions (AREA)
US13/980,752 2011-02-08 2012-02-08 Integrated device for dispensing washing agents for a washing machine, particularly a dishwasher Abandoned US20130306115A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITTO2011A000101A IT1404048B1 (it) 2011-02-08 2011-02-08 Dispositivo erogatore integrato di agenti di lavaggio per una macchina lavatrice, in particolare una macchina lavastoviglie.
ITTO2011A000101 2011-02-08
PCT/IB2012/050565 WO2012107886A1 (en) 2011-02-08 2012-02-08 Integrated device for dispensing washing agents for a washing machine, particularly a dishwashing

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US20130306115A1 true US20130306115A1 (en) 2013-11-21

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ID=43976433

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US13/980,752 Abandoned US20130306115A1 (en) 2011-02-08 2012-02-08 Integrated device for dispensing washing agents for a washing machine, particularly a dishwasher

Country Status (7)

Country Link
US (1) US20130306115A1 (de)
EP (1) EP2672876B1 (de)
KR (1) KR20140016261A (de)
CN (1) CN103369998B (de)
IT (1) IT1404048B1 (de)
PL (1) PL2672876T3 (de)
WO (1) WO2012107886A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20120379A1 (it) 2012-04-30 2013-10-31 Elbi Int Spa Gruppo combinato per l'erogazione di agenti di lavaggio e di ozono per una macchina lavatrice, in particolare una macchina lavastavoglie.
PL227509B1 (pl) * 2013-11-26 2017-12-29 Bitron Poland Spółka Z Ograniczoną Odpowiedzialnością Zintegrowany dozownik środka do mycia, w szczególności dla zmywarki do naczyń
WO2016075644A1 (en) 2014-11-12 2016-05-19 Bitron S.P.A. Washing agent dispensing device and dishwashing machine comprising this device
PL227422B1 (pl) * 2014-12-12 2017-11-30 Bitron Poland Spółka Z Ograniczoną Odpowiedzialnością Urzadzenie do dozowania srodka myjacego i srodka płuczacego, szczególnie do zmywarki do naczyn
ITUB20151329A1 (it) * 2015-05-29 2016-11-29 Bitron Spa Attuatore elettrico in corrente continua, in particolare per apparecchi elettrodomestici
CN105534460B (zh) * 2016-01-22 2019-10-18 宁波欧琳实业有限公司 水槽式清洗机
PL230510B1 (pl) * 2016-08-17 2018-11-30 Bitron Poland Spolka Z Ograniczona Odpowiedzialnoscia Urzadzenie dozujace srodek myjacy dla zmywarki do naczyn
DE102016125845A1 (de) * 2016-12-29 2018-07-05 Sanhua Aweco Appliance Systems Gmbh Vorrichtung zur Abgabe von Reinigungsmitteln
PL423109A1 (pl) * 2017-10-09 2019-04-23 Bitron Poland Spolka Z Ograniczona Odpowiedzialnoscia Urządzenie dozujące środek myjący, w szczególności do zmywarki do naczyń
WO2021098166A1 (zh) * 2019-11-19 2021-05-27 佛山市顺德区美的洗涤电器制造有限公司 分配器及洗涤电器

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US5133487A (en) * 1990-05-17 1992-07-28 Giannino Sandrin Dispenser for storing and dispensing fluent materials
DE19545773A1 (de) * 1994-12-07 1996-06-13 Elbi Int Spa Vorrichtung für die Einspeisung eines Reinigungsmittels und eines Nachspülmittels in eine Geschirrspülmaschine
US20080223166A1 (en) * 2005-08-05 2008-09-18 Eltek S.P.A. Actuation Device and Method
US20090038662A1 (en) * 2007-08-09 2009-02-12 Eltek S.P.A Actuation device
US20120279978A1 (en) * 2009-12-02 2012-11-08 Elbi International S.P.A Dispenser for dispensing a washing agent in a washing machine, particularly a dishwasher

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ES2098014T3 (es) * 1992-01-21 1997-04-16 Miele & Cie Lavavajillas o lavadora con un dispositivo dosificador.
IT1265750B1 (it) 1992-12-16 1996-12-02 Eltek Spa Dispositivo dispensatore di sostanze liquide e/o in polvere, in particolare per macchine di lavaggio
IT1289806B1 (it) * 1996-12-27 1998-10-16 Elbi Int Spa Dispositivo per l'erogazione di agenti di lavaggio, per macchine lavastoviglie.
ITTO20030986A1 (it) * 2003-12-09 2005-06-10 Elbi Int Spa Dispositivo per l'erogazione dosata di un agente liquido di lavaggio o risciacquo, per una macchina lavatrice.
ITTO20070062U1 (it) * 2007-05-09 2008-11-10 Elbi Int Spa Dispositivo erogatore per un agente di lavaggio e/o di risciacquo, particolarmente per una macchina lavastoviglie e dotato di meccanismo di apertura manuale perfezionato
IT1391200B1 (it) * 2008-09-30 2011-11-18 Elbi Int Spa Dispositivo per l'erogazione di almeno un agente di lavaggio in una macchina lavastoviglie

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US5133487A (en) * 1990-05-17 1992-07-28 Giannino Sandrin Dispenser for storing and dispensing fluent materials
DE19545773A1 (de) * 1994-12-07 1996-06-13 Elbi Int Spa Vorrichtung für die Einspeisung eines Reinigungsmittels und eines Nachspülmittels in eine Geschirrspülmaschine
US20080223166A1 (en) * 2005-08-05 2008-09-18 Eltek S.P.A. Actuation Device and Method
US20090038662A1 (en) * 2007-08-09 2009-02-12 Eltek S.P.A Actuation device
US20120279978A1 (en) * 2009-12-02 2012-11-08 Elbi International S.P.A Dispenser for dispensing a washing agent in a washing machine, particularly a dishwasher

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Also Published As

Publication number Publication date
IT1404048B1 (it) 2013-11-08
EP2672876A1 (de) 2013-12-18
CN103369998A (zh) 2013-10-23
WO2012107886A8 (en) 2012-12-20
ITTO20110101A1 (it) 2012-08-09
CN103369998B (zh) 2016-05-04
WO2012107886A1 (en) 2012-08-16
EP2672876B1 (de) 2015-05-20
KR20140016261A (ko) 2014-02-07
PL2672876T3 (pl) 2015-10-30

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AS Assignment

Owner name: BITRON S.P.A., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MARONE, GIUSEPPE;REEL/FRAME:031046/0060

Effective date: 20130801

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION