EP0096260A1 - Liquids metering and distributing device for a washing machine - Google Patents
Liquids metering and distributing device for a washing machine Download PDFInfo
- Publication number
- EP0096260A1 EP0096260A1 EP83104970A EP83104970A EP0096260A1 EP 0096260 A1 EP0096260 A1 EP 0096260A1 EP 83104970 A EP83104970 A EP 83104970A EP 83104970 A EP83104970 A EP 83104970A EP 0096260 A1 EP0096260 A1 EP 0096260A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- metering
- machine
- washing machine
- distributing device
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents
- D06F39/022—Devices for adding soap or other washing agents in a liquid state
Definitions
- This invention relates to a liquid detergent and additive metering and distributing device for a washing machine, particularly for a laundry washing machine for domestic use.
- a liquid detergent and additive distributor comprising a reservoir for containing said liquids disposed in the lower portion of the machine and associated with at least one metering chamber located therebelow and connected thereto through automatic valve means adapted to permit or to interrupt the gravity flow of said liquids from the reservoir to the metering chamber.
- the latter is subdivided into two hermetically separated compartments by means of a flexible diaphragm. One compartment is connected to the tub of the washing machine, whilst the other is connected to the tub and to the water supply circuit, respectively so as to be intermittently filled and emptied for displacing metered quantities of the liquids towards the tub.
- the operation of this known metering and distributing device is thus accomplished by means of hydraulically actuated control means.
- the described device operates satisfactorily, it presents structural complications in that it requires a three-way valve and an additional conduit for the water supply as well as a hermetically closed separation by a diaphragm for providing the two separate compartments within the metering chamber. Said three-way valve and/or said diaphragm are liable to cause malfuncions due to wear during long-time use.
- this embodiment does not allow for suitable utilization of the free jet section customarily required for safety reasons.
- the invention provides a distributor device comprising a reservoir disposed in the lower portion of the machine and associated to at least one metering chamber located therebelow, the connection between said reservoir and said chamber being adapted to be closed by automatic vlave means, said chamber being connected to the tub of the washing machine.
- a device of this type is characterized in that said metering chamber is connected to an air chamber provided with automatic valve means and associated to a free jet section connected to the water supply circuit.
- At least one reservoir 7 for containing liquid detergents and additives Disposed in the lower portion of the machine is at least one reservoir 7 for containing liquid detergents and additives, said reservoir 7 containing a metering chamber 8.
- the latter is connected to reservoir 7 through an automatic valve and is additionally connected to distributor 2 through a conduit 10.
- Metering chamber 8 is further connected to an air chamber 13 associated with free jet section 5 through a further conduit 11 and an automatic valve 12. Air chamber 13 is also provided with an automatic venting valve 14.
- valve 9 When the machine is at rest, or during operating phases which do not require the introduction of liquid detergents or additives into the tub, valve 9 is open, and metering chamber 8 is filled with a metered quantity of the liquid from reservoir 7. In this situation, air chamber 13 is not under pressure, and valves 12 and 14 are open. If it is required to introduce the metered liquid into the tub, the program unit (not shovm) of the machine causes the water supply valve to be opened, so that the water from the water mains fills air chamber 13 via free jet section 5.
- venting valve 14 The pressure generated thereby within air chamber 13 causes venting valve 14 to close instantly, so that the air contained in chamber 13 is displaced towards metering chamber 8 through valve 12 and conduit 11.
- valve 9 causes valve 9 to close and the liquid contained in metering chamber 8 to be displaced towards washin.g tub 1 through conduit 10 and distributor 2.
- valve 12 is closed by the hydraulic pressure to prevent the water from entering conduit 11 and flowing into metering chamber 8.
- valves 12 and 14 open.
- valve 9 This results in a partial vacuum within metering chamber 8, causing valve 9 to open so as to admit a further metered quantity of the liquid detergent or additive into chamber 8.
- the metering of the liquid and the introduction thereof into the tub are thus accomplished by substantially pneumatic actuation, reducing to a minimum the number of components which are moreover of extreme simplicity and reliability.
- the device according to the invention permits the eventual problem of regulating the metered quantities of liquids to be solved in a simple manner.
- the immersion depth of conduit 10 into chamber 8 may be varied by employing a sliding sleeve 15 at the inflow end of conduit 10.
- Sleeve 15 is vertically displaceable by means for instance of a pull rod 16 actuated by a lever or control knob 17 mounted at the front of the machine.
- the device according to the invention thus accomplishes the stated objects and provides the additional advantage that the liquids employed may be metered with high accuracy independent of their density and viscosity.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Treatment Of Fiber Materials (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Description
- This invention relates to a liquid detergent and additive metering and distributing device for a washing machine, particularly for a laundry washing machine for domestic use.
- Already known are laundry washing machines provided with a liquid detergent and additive distributor, comprising a reservoir for containing said liquids disposed in the lower portion of the machine and associated with at least one metering chamber located therebelow and connected thereto through automatic valve means adapted to permit or to interrupt the gravity flow of said liquids from the reservoir to the metering chamber. The latter is subdivided into two hermetically separated compartments by means of a flexible diaphragm. One compartment is connected to the tub of the washing machine, whilst the other is connected to the tub and to the water supply circuit, respectively so as to be intermittently filled and emptied for displacing metered quantities of the liquids towards the tub. The operation of this known metering and distributing device is thus accomplished by means of hydraulically actuated control means. Although the described device operates satisfactorily, it presents structural complications in that it requires a three-way valve and an additional conduit for the water supply as well as a hermetically closed separation by a diaphragm for providing the two separate compartments within the metering chamber. Said three-way valve and/or said diaphragm are liable to cause malfuncions due to wear during long-time use.
- On the other hand, this embodiment does not allow for suitable utilization of the free jet section customarily required for safety reasons.
- It is an object of the present invention to provide a liquid detergent and additive metering distributor for a washing machine which avoids the possible inconveniences of the hydraulically operated system by making use of a free jet section provided in the machine for obtaining the metering of said liquids and the introduction thereof into the tub by pneumatic actuation.
- In view of this object, the invention provides a distributor device comprising a reservoir disposed in the lower portion of the machine and associated to at least one metering chamber located therebelow, the connection between said reservoir and said chamber being adapted to be closed by automatic vlave means, said chamber being connected to the tub of the washing machine.
- According to the invention, a device of this type is characterized in that said metering chamber is connected to an air chamber provided with automatic valve means and associated to a free jet section connected to the water supply circuit.
- The characteristics of the invention will become evident from the following description of an exemplary and nonlimiting embodiment with reference to the accompanying drawing.
- The drawing shows in diagrammatic form a conventional laundry washing machine comprising a washing tub 1, connected to which is the outlet of a
detergent powder distributor 2 supplied with water from thewater mains 3 through asolenoid valve 4, afree jet section 5, and aconduit 6. - Disposed in the lower portion of the machine is at least one
reservoir 7 for containing liquid detergents and additives, saidreservoir 7 containing ametering chamber 8. - The latter is connected to
reservoir 7 through an automatic valve and is additionally connected todistributor 2 through aconduit 10. -
Metering chamber 8 is further connected to anair chamber 13 associated withfree jet section 5 through afurther conduit 11 and anautomatic valve 12.Air chamber 13 is also provided with anautomatic venting valve 14. - The operation of the described device appears simple and evident. When the machine is at rest, or during operating phases which do not require the introduction of liquid detergents or additives into the tub,
valve 9 is open, andmetering chamber 8 is filled with a metered quantity of the liquid fromreservoir 7. In this situation,air chamber 13 is not under pressure, andvalves air chamber 13 viafree jet section 5. - The pressure generated thereby within
air chamber 13 causesventing valve 14 to close instantly, so that the air contained inchamber 13 is displaced towardsmetering chamber 8 throughvalve 12 andconduit 11. - The pressurized air causes
valve 9 to close and the liquid contained inmetering chamber 8 to be displaced towards washin.g tub 1 throughconduit 10 anddistributor 2. - After the water has completely filled
air chamber 13,valve 12 is closed by the hydraulic pressure to prevent the water from enteringconduit 11 and flowing intometering chamber 8. - Subsequently the water supplied from
water mains 3 and passing throughfree jet section 5 is introduced into washing tub 1 throughconduit 6 anddistributor 2 for completeing the required charge for the following washing or rinsing phase. - As soon as the water supply from the water mains stops,
chamber 13 is emptied, whereuponvalves - This results in a partial vacuum within
metering chamber 8, causingvalve 9 to open so as to admit a further metered quantity of the liquid detergent or additive intochamber 8. - According to the invention, the metering of the liquid and the introduction thereof into the tub are thus accomplished by substantially pneumatic actuation, reducing to a minimum the number of components which are moreover of extreme simplicity and reliability.
- The device according to the invention permits the eventual problem of regulating the metered quantities of liquids to be solved in a simple manner. To this effect, the immersion depth of
conduit 10 intochamber 8 may be varied by employing a slidingsleeve 15 at the inflow end ofconduit 10. -
Sleeve 15 is vertically displaceable by means for instance of apull rod 16 actuated by a lever orcontrol knob 17 mounted at the front of the machine. - The device according to the invention thus accomplishes the stated objects and provides the additional advantage that the liquids employed may be metered with high accuracy independent of their density and viscosity.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT83104970T ATE21709T1 (en) | 1982-06-09 | 1983-05-19 | DOSING AND FEED DEVICE FOR WASHING MACHINES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8234023U IT8234023V0 (en) | 1982-06-09 | 1982-06-09 | DISPENSER DISPENSER DEVICE FOR WASHING MACHINE. |
IT3402382U | 1982-06-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0096260A1 true EP0096260A1 (en) | 1983-12-21 |
EP0096260B1 EP0096260B1 (en) | 1986-08-27 |
Family
ID=11238755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83104970A Expired EP0096260B1 (en) | 1982-06-09 | 1983-05-19 | Liquids metering and distributing device for a washing machine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0096260B1 (en) |
AT (1) | ATE21709T1 (en) |
DE (1) | DE3365605D1 (en) |
IT (1) | IT8234023V0 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0278574A2 (en) * | 1987-02-12 | 1988-08-17 | Bauknecht Hausgeräte GmbH | Metering device for liquids |
DE3901686A1 (en) * | 1989-01-21 | 1990-07-26 | Miele & Cie | WASHING MACHINE OR WASHING DRYER WITH A DOSING DEVICE |
FR2658068A1 (en) * | 1990-02-12 | 1991-08-16 | Elbu International Spa | SYSTEM FOR THE SUPPLY OF WATER AND DETERGENT OF A DISHWASHER. |
EP1770379A1 (en) * | 2005-09-29 | 2007-04-04 | JohnsonDiversey, Inc. | Device and method for detecting the presence of a gas in a liquid flow |
EP2011913A1 (en) * | 2007-07-03 | 2009-01-07 | Electrolux Home Products Corporation N.V. | Laundry washing machine |
EP2241241A1 (en) * | 2009-04-14 | 2010-10-20 | Chemische Fabrik Dr. Weigert GmbH & Co. KG | Device to remove liquid from a container |
JP2015531648A (en) * | 2012-09-17 | 2015-11-05 | エルジー エレクトロニクス インコーポレイティド | Clothing processing equipment |
EP3114269A4 (en) * | 2014-03-04 | 2017-10-11 | LG Electronics Inc. | Washing machine |
USD848692S1 (en) | 2017-12-21 | 2019-05-14 | Whirlpool Corporation | Bulk dispensing drawer |
USD865306S1 (en) | 2017-12-21 | 2019-10-29 | Whirlpool Corporation | Laundry treating appliance door |
USD866887S1 (en) | 2017-12-21 | 2019-11-12 | Whirlpool Corporation | Pedestal |
USD874764S1 (en) | 2017-12-21 | 2020-02-04 | Whirlpool Corporation | User interface |
USD877431S1 (en) | 2017-12-21 | 2020-03-03 | Whirlpool Corporation | User interface |
USD899720S1 (en) | 2017-12-21 | 2020-10-20 | Whirlpool Corporation | Laundry treating appliance |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3021702A (en) * | 1960-06-23 | 1962-02-20 | Gen Electric | Treating agent dispenser system for laundry machines |
DE2421041A1 (en) * | 1973-05-03 | 1974-11-21 | Europe Mfg Trust | WASHING MACHINE |
EP0033684A1 (en) * | 1980-02-01 | 1981-08-12 | Thomson-Brandt | Dispenser for a liquid product and washing machine comprising such a dispenser |
EP0077463A2 (en) * | 1981-10-15 | 1983-04-27 | INDUSTRIE ZANUSSI S.p.A. | Liquids distributor for a washing machine |
-
1982
- 1982-06-09 IT IT8234023U patent/IT8234023V0/en unknown
-
1983
- 1983-05-19 AT AT83104970T patent/ATE21709T1/en not_active IP Right Cessation
- 1983-05-19 EP EP83104970A patent/EP0096260B1/en not_active Expired
- 1983-05-19 DE DE8383104970T patent/DE3365605D1/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3021702A (en) * | 1960-06-23 | 1962-02-20 | Gen Electric | Treating agent dispenser system for laundry machines |
DE2421041A1 (en) * | 1973-05-03 | 1974-11-21 | Europe Mfg Trust | WASHING MACHINE |
EP0033684A1 (en) * | 1980-02-01 | 1981-08-12 | Thomson-Brandt | Dispenser for a liquid product and washing machine comprising such a dispenser |
EP0077463A2 (en) * | 1981-10-15 | 1983-04-27 | INDUSTRIE ZANUSSI S.p.A. | Liquids distributor for a washing machine |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0278574A2 (en) * | 1987-02-12 | 1988-08-17 | Bauknecht Hausgeräte GmbH | Metering device for liquids |
EP0278574A3 (en) * | 1987-02-12 | 1988-10-12 | Bauknecht Hausgerate Gmbh | Metering device for liquids |
DE3901686A1 (en) * | 1989-01-21 | 1990-07-26 | Miele & Cie | WASHING MACHINE OR WASHING DRYER WITH A DOSING DEVICE |
FR2658068A1 (en) * | 1990-02-12 | 1991-08-16 | Elbu International Spa | SYSTEM FOR THE SUPPLY OF WATER AND DETERGENT OF A DISHWASHER. |
EP1770379A1 (en) * | 2005-09-29 | 2007-04-04 | JohnsonDiversey, Inc. | Device and method for detecting the presence of a gas in a liquid flow |
WO2009003731A1 (en) * | 2007-07-03 | 2009-01-08 | Electrolux Home Products Corporation N.V. | Laundry washing machine |
EP2011913A1 (en) * | 2007-07-03 | 2009-01-07 | Electrolux Home Products Corporation N.V. | Laundry washing machine |
EP2241241A1 (en) * | 2009-04-14 | 2010-10-20 | Chemische Fabrik Dr. Weigert GmbH & Co. KG | Device to remove liquid from a container |
US10081901B2 (en) | 2012-09-17 | 2018-09-25 | Lg Electronics Inc. | Laundry treating apparatus having a detergent supply module |
JP2015531648A (en) * | 2012-09-17 | 2015-11-05 | エルジー エレクトロニクス インコーポレイティド | Clothing processing equipment |
US9528216B2 (en) | 2012-09-17 | 2016-12-27 | Lg Electronics Inc. | Laundry treating apparatus having a detergent supply module |
US9540755B2 (en) | 2012-09-17 | 2017-01-10 | Lg Electronics Inc. | Laundry treating apparatus having a detergent supply module |
US10190251B2 (en) | 2012-09-17 | 2019-01-29 | Lg Electronics Inc. | Laundry treating apparatus having a detergent supply module |
US9951461B2 (en) | 2014-03-04 | 2018-04-24 | Lg Electronics Inc. | Washing machine with an automatic detergent supply unit |
US10125448B2 (en) | 2014-03-04 | 2018-11-13 | Lg Electronics Inc. | Washing machine |
EP3114269A4 (en) * | 2014-03-04 | 2017-10-11 | LG Electronics Inc. | Washing machine |
EP3683350A1 (en) * | 2014-03-04 | 2020-07-22 | LG Electronics Inc. -1- | Washing machine |
USD848692S1 (en) | 2017-12-21 | 2019-05-14 | Whirlpool Corporation | Bulk dispensing drawer |
USD865306S1 (en) | 2017-12-21 | 2019-10-29 | Whirlpool Corporation | Laundry treating appliance door |
USD866887S1 (en) | 2017-12-21 | 2019-11-12 | Whirlpool Corporation | Pedestal |
USD874764S1 (en) | 2017-12-21 | 2020-02-04 | Whirlpool Corporation | User interface |
USD877431S1 (en) | 2017-12-21 | 2020-03-03 | Whirlpool Corporation | User interface |
USD899720S1 (en) | 2017-12-21 | 2020-10-20 | Whirlpool Corporation | Laundry treating appliance |
USD900418S1 (en) | 2017-12-21 | 2020-10-27 | Whirlpool Corporation | Laundry treating appliance |
USD958479S1 (en) | 2017-12-21 | 2022-07-19 | Whirlpool Corporation | Laundry treating appliance |
Also Published As
Publication number | Publication date |
---|---|
EP0096260B1 (en) | 1986-08-27 |
ATE21709T1 (en) | 1986-09-15 |
IT8234023V0 (en) | 1982-06-09 |
DE3365605D1 (en) | 1986-10-02 |
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