EP0486790A1 - Dispositif distributeur de détergents pulvérulents pour machine à laver la vaisselle - Google Patents

Dispositif distributeur de détergents pulvérulents pour machine à laver la vaisselle Download PDF

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Publication number
EP0486790A1
EP0486790A1 EP91116393A EP91116393A EP0486790A1 EP 0486790 A1 EP0486790 A1 EP 0486790A1 EP 91116393 A EP91116393 A EP 91116393A EP 91116393 A EP91116393 A EP 91116393A EP 0486790 A1 EP0486790 A1 EP 0486790A1
Authority
EP
European Patent Office
Prior art keywords
reservoir
detergent
dishwashing machine
dispenser
movable
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.)
Granted
Application number
EP91116393A
Other languages
German (de)
English (en)
Other versions
EP0486790B1 (fr
Inventor
Gianni Sandrin
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.)
RO-SA MICROMECCANICA SNC
RO Micromeccanica SNC SA
Original Assignee
RO-SA MICROMECCANICA SNC
RO Micromeccanica SNC SA
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 RO-SA MICROMECCANICA SNC, RO Micromeccanica SNC SA filed Critical RO-SA MICROMECCANICA SNC
Publication of EP0486790A1 publication Critical patent/EP0486790A1/fr
Application granted granted Critical
Publication of EP0486790B1 publication Critical patent/EP0486790B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 dishwashing machines are prearranged to feed the washing tank with powder or liquid detergents by means of a conventional detergent dispenser connected with said tank and subdivided into various separated and independent compartments each one of them containing the respective detergent.
  • the different compartments of the dispenser are filled with predetermined doses of powder or liquid detergents which are then directly or indirectly removed by the water of the washing tank.
  • the dispensing devices presently employed in case of powder detergents are of the single-dose type so that the user, at every washing cycle, must fill a special tray with detergent which then, through a signal command sent by an appropriate control device (programmer) is introduced into the washing tank to be dissolved in the washing water.
  • washing machines equipped with means suitable to contain large amounts of detergents, particularly liquid detergents, are well-known in the prior art.
  • washing machines and dishwashing machines in which the reservoirs of liquid substances are arranged outside the machine, preferably assembled together into an appropriate container placed side by side with the machine, are well-known in the prior art.
  • the height and depth of said prior art container correspond, as a rule, to those of the machine itself so to comply, at least in part, with the existing dimensional standards.
  • each one of the different washing programmes prearranged by the manufacturer of dishwashing machines may normally call for different amounts of detergents, and such "to size" dosage is not obtainable with the current single-dose detergent dispensers.
  • the automatic powder detergent dispenser is composed of a shell 1 screwed and gasketed into and against an opening obtained on the inner wall of the door 2 of the dishwashing machine and of a reservoir-dispenser 3 inserted into said shell 1 in such a way as to allow the user to slide it out for an easy replenishment of detergent as it will be explained later on.
  • Said reservoir-dispenser removable by the user, is inserted and fixed into said shell 1 by means of a handle which has also the function of locking the reservoir-dispenser in place.
  • Said reservoir-dispenser essentially shaped like an "L" as illustrated in Fig. 1, can be inserted into said shell 1 installed on the door inner wall, in such a way and position that its upper part, when the door is closed, cannot be lapped by the water, as illustrated in Fig. 8 and 9.
  • This embodiment which has the advantage of limiting the area of direct exposure to the spouts of water, reduces the possibility of water seepages and maintains lower the average temperature inside the detergent dispenser thus allowing a better detergent preservation.
  • the lower part of the reservoir-dispenser corresponding to the base of said "L" houses the detergent dispenser and, obviously, said part of the reservoir-dispenser, when the door is closed, is disposed in a downward direction since the detergent is fed by gravity into the washing tank.
  • the removable reservoir which consists of a box-like hollow body 4, can be filled with an amount of detergent sufficient for numerous washing cycles.
  • the lower part of said removable reservoir is connected with a dispenser 5 provided with a feedbox 6 which receives the detergent from the reservoir and conveys then it to a predetermined-volume container or metering chamber 7.
  • a first separating element 8, placed between the reservoir feedbox 6 and said metering chamber 7, can slide transversally and hence preclude or enable the passage of the detergent in powder form into the metering chamber 7.
  • the end of said metering chamber 7, positioned toward the washing tank is hermetically closed by means of a hinged movable lid 9 which, when swung closed, lies flat on a seat provided with a well-dimensioned water-tight gasket 10.
  • the purpose of said gasket 10 is to preclude that spouts of water leak into the side compartments 7a of the chamber 7 thus clogging said compartments and hence impairing their function.
  • Said compartments 7a collect the detergent occasionally strained out from the separating element 8 and discharge then said detergent into the washing tank when the movable lid 9 swings open.
  • the coupling between the box-like hollow body 4 and the dispenser 5 can be assured by a spring-lock restrained joint 18 or by an equivalent means, capable to assure however a perfect seal.
  • Said first separating element 8 consists of a movable very flat perforated lamina 11, preferably a thin chrome-nickel steel diaphragm, superimposed and sliding over the aperture 12 of the metering chamber 7, said aperture 12 and that of said movable lamina being identical and coincident so that for opening the passage between the feedbox 6 and the metering chamber 7 it is required that the movable lamina 11 slides over said aperture 12.
  • a distinctive feature of the device is the special configuration of the contact zone between the sliding diaphragm and the rims of the apertures of both the feedbox 6 and metering chamber 7.
  • the elastic pressure necessary for granting the required seal and elasticity to said contact parts 13 is, preferably, assured by a plurality of springs 14 acting on said parts.
  • Fig. 2 and 3 show respectively an enlarged view of said contact zone and a variation to spring 14, consisting of an elastomer element 14, compressible between said movable parts 13 and said feedbox 6.
  • Said elements 11 and 12 are actuated, preferably by means of a rotary motion, applied to them through corresponding shafts, cams, pins or other equivalent means 15 on which they are keyed.
  • Said elements comprised in said dispenser, are out-timed in their movements so that when the detergent has to be released into the washing tank, said first separating element, normally open, closes before said movable lid opens and, conversely, after said detergent has been released, said movable lid closes before said first separating element opens.
  • Said means 15, which transmit the motion to the movable perforated lamina 11 and to the movable lid 9, are driven by an actuator 16, mounted outside the shell on the inner side of the door, and they are acting on said means 15 through one or more pin-like elements 17, the latter being part of said actuator 16, as shown in Fig. 1 and 5.
  • this device To fill the reservoir with detergent, the user disengages and slides, in a combined outward-upward direction, out of the housing shell 1 located on the inner wall of the door, and away from the actuator 16, the complete reservoir-dispenser unit.
  • the device can be removed and placed onto a table to be filled with detergent in powder form.
  • the actuator 16 When detergent has to be supplied to the dishwashing machine, the actuator 16, being powered, makes the pin 17 come out its seat thus actuating the means 15 which slide closed the separating lamina 8 and swing open the lid 9.
  • the washing pump is kept in a stop motion condition in order to avoid that spouts of water can enter inside the device.
  • the detergent is supplied to the washing tank every time an appropriate electrical actuator is energized by the programmer of the dishwashing machine.
  • Said actuator is acting on the movable lamina as well as on the movable lid in accordance with the above described operation sequence, i. e. first, the detergent already in the metering chamber falls into the washing tank, then, the movable lid swings closed and, finally, the movable lamina slides open so to allow the replenishment of the required amount of detergent into the metering chamber.
  • a further improvement of this device is obtained by providing the dispenser with a special engaging and locking handle 22.
  • Said handle is rotatably mounted on that part of the dispenser facing the washing tank, the rotary motion of said handle being controlled by a counteracting spring, not shown in the drawings, said counteracting spring, when in its rest position, making said handle rest against and into an undercut provided on the dispenser housing shell, as shown in Fig. 8 and 9.
  • said handle can advantageously lock in place the dispenser, once the latter is inserted into its housing shell 1, by adopting the following arrangement:
  • a pin-like or plate-like shaped tongue 25 is fixed on the inner wall of the door in correspondence with a protruding element 23 of the base 24 of said handle.
  • a recess 26, coincident with said tongue 25, is provided in said protruding element 23 so that, when the handle is being rotated outwardly forcing the counteracting spring action, said recess 26 disengages from said tongue 25 and when the handle is released, said recess engages with said tongue 25.
  • This improvement will consist in a compensating valve installed at the top 27 of the reservoir, for instance as shown in the drawings.
  • the reservoir with a special, free from moving parts flat valve, consisting of a plug 31, made of a material permeable to the air but not to the detergent, as for instance a sintered material, covering and closing permanently the inner side of the reservoir vent hole 30 so that the reservoir outer surface surrounding said vent hole 30 remains flat.
  • a second hole 32 coaxial with the first one and provided with an extending outwardly regular cylindrical crown 35 inside which a finned pin 33, provided with a plurality of longitudinal channels 34 arranged between a fin and the other, is axially inserted.
  • the upper end of said pin 33 is provided with a horizontally disposed closing valve 37 which can cover the rim of crown 35 and hence close said channels 34.
  • a stop element 36 against which the reservoir is pressing during the insertion of the dispenser.
  • valve assembly The geometry and dimensions of the valve assembly are such that when the reservoir is inserted inside its housing shell, the former, by beating with its upper wall against the pin 37, pushes the latter up thus lifting the valve and hence freeing the channels 34.
  • the plug 31 due to the characteristics of the material with which it is made from, cannot be clogged and further, the surface of the reservoir resting onto the table during the detergent replenishment is regular and flat.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Detergent Compositions (AREA)
EP91116393A 1990-10-03 1991-09-26 Dispositif distributeur de détergents pulvérulents pour machine à laver la vaisselle Expired - Lifetime EP0486790B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT4575890 1990-10-03
IT04575890A IT1242800B (it) 1990-10-03 1990-10-03 Lavastoviglie con distributore pluri-dose di detersivo in polvere

Publications (2)

Publication Number Publication Date
EP0486790A1 true EP0486790A1 (fr) 1992-05-27
EP0486790B1 EP0486790B1 (fr) 1994-07-27

Family

ID=11258099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116393A Expired - Lifetime EP0486790B1 (fr) 1990-10-03 1991-09-26 Dispositif distributeur de détergents pulvérulents pour machine à laver la vaisselle

Country Status (4)

Country Link
EP (1) EP0486790B1 (fr)
DE (1) DE69103127T2 (fr)
ES (1) ES2061142T3 (fr)
IT (1) IT1242800B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107847101A (zh) * 2015-08-31 2018-03-27 伊莱克斯电器股份公司 用于洗碗机的洗涤剂投放装置
EP3305160A1 (fr) * 2016-10-06 2018-04-11 Miele & Cie. KG Réservoir à installer dans un dispositif de dosage d'un apppareil de nettoyage
CN109363604A (zh) * 2018-11-30 2019-02-22 广东赛普电器制造有限公司 一种粉液输出互不干涉的洗碗机分配器
CN110403554A (zh) * 2018-04-27 2019-11-05 三花亚威科电器设备（芜湖）有限公司 分配器和洗碗机
US10646099B2 (en) 2016-10-06 2020-05-12 Miele & Cie. Kg Dispensing device
IT202000013435A1 (it) * 2020-06-05 2021-12-05 Eltek Spa Dispensatore di agenti di lavaggio per lavastoviglie

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7754025B1 (en) 2000-06-08 2010-07-13 Beverage Works, Inc. Dishwasher having a door supply housing which holds dish washing supply for multiple wash cycles
US7083071B1 (en) 2000-06-08 2006-08-01 Beverage Works, Inc. Drink supply canister for beverage dispensing apparatus
DE102014111315A1 (de) * 2014-08-08 2016-02-11 Miele & Cie. Kg Geschirrspülautomat, insbesondere Haushaltsgeschirrspülmaschine
DE102016116417A1 (de) 2016-09-02 2018-03-08 Miele & Cie. Kg Geschirrspülautomat, insbesondere Haushaltsgeschirrspülmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1239822B (de) * 1962-09-14 1967-05-03 Bauknecht Gmbh G In einer Geschirrspuelmaschine anbringbarer Behaelter zum Einbringen von festem, pulver-foermigem oder fluessigem Spuelmittel
DE3833961A1 (de) * 1988-10-06 1990-04-12 Licentia Gmbh Geschirrspuelmaschine mit einer zugabekammer fuer reinigungsmittel
DE3903636A1 (de) * 1989-02-08 1990-08-09 Miele & Cie Geschirrspuelmaschine mit einer automatischen dosiervorrichtung fuer fluessigreiniger

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1239822B (de) * 1962-09-14 1967-05-03 Bauknecht Gmbh G In einer Geschirrspuelmaschine anbringbarer Behaelter zum Einbringen von festem, pulver-foermigem oder fluessigem Spuelmittel
DE3833961A1 (de) * 1988-10-06 1990-04-12 Licentia Gmbh Geschirrspuelmaschine mit einer zugabekammer fuer reinigungsmittel
DE3903636A1 (de) * 1989-02-08 1990-08-09 Miele & Cie Geschirrspuelmaschine mit einer automatischen dosiervorrichtung fuer fluessigreiniger

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107847101A (zh) * 2015-08-31 2018-03-27 伊莱克斯电器股份公司 用于洗碗机的洗涤剂投放装置
EP3305160A1 (fr) * 2016-10-06 2018-04-11 Miele & Cie. KG Réservoir à installer dans un dispositif de dosage d'un apppareil de nettoyage
US10646099B2 (en) 2016-10-06 2020-05-12 Miele & Cie. Kg Dispensing device
CN110403554A (zh) * 2018-04-27 2019-11-05 三花亚威科电器设备（芜湖）有限公司 分配器和洗碗机
CN109363604A (zh) * 2018-11-30 2019-02-22 广东赛普电器制造有限公司 一种粉液输出互不干涉的洗碗机分配器
CN109363604B (zh) * 2018-11-30 2024-02-20 广东赛普智能制造股份有限公司 一种粉液输出互不干涉的洗碗机分配器
IT202000013435A1 (it) * 2020-06-05 2021-12-05 Eltek Spa Dispensatore di agenti di lavaggio per lavastoviglie
WO2021245613A1 (fr) * 2020-06-05 2021-12-09 Eltek S.P.A. Distributeur d'agent de lavage pour lave-vaisselle

Also Published As

Publication number Publication date
ES2061142T3 (es) 1994-12-01
DE69103127T2 (de) 1995-03-02
DE69103127D1 (de) 1994-09-01
IT1242800B (it) 1994-05-18
IT9045758A1 (it) 1992-04-03
IT9045758A0 (it) 1990-10-03
EP0486790B1 (fr) 1994-07-27

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