EP0528768B1 - Dispositifs pour alimenter en détergents et en produits additifs, des machines à laver - Google Patents

Dispositifs pour alimenter en détergents et en produits additifs, des machines à laver Download PDF

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Publication number
EP0528768B1
EP0528768B1 EP92830247A EP92830247A EP0528768B1 EP 0528768 B1 EP0528768 B1 EP 0528768B1 EP 92830247 A EP92830247 A EP 92830247A EP 92830247 A EP92830247 A EP 92830247A EP 0528768 B1 EP0528768 B1 EP 0528768B1
Authority
EP
European Patent Office
Prior art keywords
improved device
additive
supplying
detersive
membrane
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.)
Expired - Lifetime
Application number
EP92830247A
Other languages
German (de)
English (en)
Other versions
EP0528768A1 (fr
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy SpA
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Filing date
Publication date
Application filed by Candy SpA filed Critical Candy SpA
Publication of EP0528768A1 publication Critical patent/EP0528768A1/fr
Application granted granted Critical
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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

Definitions

  • the present invention relates to improvements in/and related to devices for supplying detersives and additives to a washing machine.
  • conventional linen washing machines comprise a metering-dispenser assembly for supplying powder detersives, as well as additives and the like, into the machine washing basin.
  • the document DE-A-1 785 156 discloses a device for supplying detersive and additives to washing machines having substantially the features of the pre-characterizing part of the main claim.
  • the main object of the present invention is to overcome the above mentioned drawbacks by providing an improved device for supplying detersives and additives to washing machines, which is adapted to assure a perfect metering of these substances or materials.
  • a main object of the present invention is to provide such an improved device for supplying detersives and additives to washing machines which is very flexible in operation, i.e. in the metering of the detersive materials.
  • Yet another object of the present invention is to provide such an improved device for supplying detersives and additives to washing machines which can be quickly and easily applied to a conventional washing machine without the need of modifying the working panel of these washing machines, that is without the need of forming openings through the working or top panel of the washing machine.
  • an improved device for supplying detersives and additives to washing machines having the features of the characterizing portion of the main claim.
  • the improved device for supplying detersives and additives to washing machines comprises a drawer 1 which is slidably engaged in a vessel 2 and being divided, by means of a vertical wall element 3, into two trays, respectively indicated at 4 and 5.
  • the tray 5 is so designed as to receive a given multiple dose of a so-called compact detersive, whereas the tray 4 is provided for receiving a concentrated additive.
  • a propeller supply element 6 is arranged, which is driven by an axial geared motor 7 connected to the rear wall of the vessel or housing 2 and including a plug-in joint adapted to allow the supply device to operate exclusively with the drawer in its closed condition.
  • This propeller supply device will allow, through conventional mixing, breaking and propelling operations, to obtain very accurate doses and it will overcome possible drawbacks due to the hygroscopicity and heterogeneity of the detersive formulations.
  • This apparatus substantially comprises a chamber divided by a resiliently deformable membrane 12 on a side of which there is provided, in addition to the above mentioned check valve 10, a second check valve 13, with an outlet flow, whereas, on the opposite side, there is provided a perimetrical opening 14 for the inlet of pressurized water.
  • This pressurized water is supplied by a suitable solenoid valve 15 which conveys the water or liquid flow through a duct 16 to a mixing apparatus 17, and a further liquid flow, subdivided through a branch 18, into the above mentioned opening 14.
  • the pulsating flow sent into said chamber will cause the resilient membrane to reciprocate so as to suck the additive into the tray 5 during its depressurized condition, and so as to convey said additive, during its pushing condition, through the valve 13 and a duct 19 to the above mentioned mixer apparatus.
  • This mixer apparatus will receive, through the duct 20, the remaining water flow for recovering the additive and, through the propeller supplying element 6, it will aslo receive the desired detersive dose.
  • the above mentioned mixer apparatus will receive the detersive conveying water through the duct 16, the additive dose through the duct 19 and the remaining additive entraining water through the duct 20.
  • Said mixer apparatus will convey the received flows through the syphon 21 to the washing basin 22,of which there have been schematically illustrated the basket 23, as well as the pre-loading 24 and washing 25 levels.
  • a screw element cooperates which is provided with an adjusting rod 26 which can be driven by means of a handle or knob 27 so as to cause the oscillation amplitude of the membrane to vary depending on the requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessories For Mixers (AREA)
  • Washing And Drying Of Tableware (AREA)

Claims (7)

  1. Un dispositif amélioré pour délivrer des détersifs et des additifs aux machines à laver, comportant un tiroir (1) d'alimentation incluant un bac (4) à détersif en poudre avec un élément à hélice (6) d'alimentation, et un bec (5) à additif dont le matérieau liquide est prélevé, caractérisé en ce que ledit matérieau liquide est prélevé pneumatiquement au moyen d'une pompe à membrane (11) entraînée par l'eau sous pression fournie par une soupape électromagnétique de chargement (15) alimentée en courant dépendamment de la dose requise, lesdits détersif et additif étant convoyés vers la cuve (22) de la machine à laver à travers un appareil mélangeur (17).
  2. Un dispositif amélioré selon la revendication 1, caractérisé en ce que ledit tiroir (1) est situé glissant dans un boîtier (2) et divisé par une paroi verticale (3) en deux bacs (4, 5), dont l'un (5) a une dimension telle à accueillir une dose multiple donnée d'un détersif compact, tandis que l'autre (4) est conçu de manière à recevoir un additif concentré.
  3. Un dispositif amélioré selon les revendications 1 et 2, caractérisé en ce que ledit élément d'alimentation à hélice (6) est entraîné par un moteur à engrenage axial (7) couplé à la paroi postérieure dudit boîtier (2) et étant pourvu d'un joint enfichable (8) adapté à permettre audit élément d'alimentation à hélice de n'opérer qu'avec le tiroir (1) dans une condition fermée.
  4. Un dispositif amélioré selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que dans ledit bec à additif (5) est enclenchée une extrémité d'un tuyau (9), dont l'autre extrémité porte à une soupape de non-retour (10) communiquant avec un dispositif à dépression (11) incluant substantiellement une chambre divisée par une membrane résiliente déformable (12), sur un côté de laquelle se trouve, conjointement avec ladite soupape de non-retour (10), une seconde soupape de non-retour (13) avec un orifice de sortie, tandis que sur son côté opposé se trouve une ouverture périmétrique (14) pour l'entrée d'eau sous pression.
  5. Un dispositif amélioré selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ladite eau sous pression est alimentée à partir d'une vanne électromagnétique (15) qui convoie un écoulement de liquide à travers un premier conduit (16) à un appareil mélangeur (17), et un ultérieur écoulement de liquide subdivisé au moyen d'une branche (18) dans ladite ouverture (14) par l'intermédiaire d'un second conduit.
  6. Un dispositif amélioré selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que ledit appareil mélangeur (17) reçoit l'eau entraînant le détersif, la dose d'additif et l'eau résiduelle entraînant l'additif, et convoie les écoulements reçus le long d'un siphon (21) vers la cuve de lavage (22) sousjacente de la machine à laver.
  7. Un dispositif amélioré selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'avec ladite membrane (12) coopère une élément à vis, ledit élément à vis étant doté d'un tirant de réglage (26) qui peut être commandé au moyen d'une poignée (27) de manière à provoquer des variations du mouvement oscillant ou basculant de ladite membrane (12) dépendamment des nécessités.
EP92830247A 1991-06-12 1992-05-22 Dispositifs pour alimenter en détergents et en produits additifs, des machines à laver Expired - Lifetime EP0528768B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI910523U 1991-06-12
ITMI910523U IT222457Z2 (it) 1991-06-12 1991-06-12 Perfezionamenti si dispositivi per l'alimentazione di detersivi ed addittivi alle macchine lavabiancheria

Publications (2)

Publication Number Publication Date
EP0528768A1 EP0528768A1 (fr) 1993-02-24
EP0528768B1 true EP0528768B1 (fr) 1995-07-26

Family

ID=11358795

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92830247A Expired - Lifetime EP0528768B1 (fr) 1991-06-12 1992-05-22 Dispositifs pour alimenter en détergents et en produits additifs, des machines à laver

Country Status (3)

Country Link
EP (1) EP0528768B1 (fr)
DE (1) DE69203674T2 (fr)
IT (1) IT222457Z2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2251480B1 (fr) 2009-05-11 2017-11-29 Electrolux Home Products Corporation N.V. Machine à laver
US11535973B2 (en) 2018-08-30 2022-12-27 Electrolux Appliances Aktiebolag Laundry treatment appliance comprising an improved drawer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5730007A (en) * 1995-10-12 1998-03-24 Mcillwain; Jim L. Predilution mechanism for chemical solutions for washing machines
FR2936259B1 (fr) * 2008-09-22 2010-09-10 Fagorbrandt Sas Procede de detection de detergent d'une machine a laver le linge et machine a laver associee
PL3460120T3 (pl) * 2009-05-11 2024-01-29 Electrolux Home Products Corporation N.V. Urządzenie piorące do prania
JP2022029494A (ja) * 2020-08-05 2022-02-18 シャープ株式会社 洗剤投入ユニットおよび洗濯機

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3085715A (en) * 1961-01-30 1963-04-16 Micro Controls Inc Liquid dispenser
GB1211560A (en) * 1967-12-23 1970-11-11 Wilkins & Mitchell Ltd Improvements in or relating to washing machines
DE1785156A1 (de) * 1968-08-16 1972-01-20 Siemens Elektrogeraete Gmbh Einrichtung fuer die Zugabe von Waschmitteln

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2251480B1 (fr) 2009-05-11 2017-11-29 Electrolux Home Products Corporation N.V. Machine à laver
US11535973B2 (en) 2018-08-30 2022-12-27 Electrolux Appliances Aktiebolag Laundry treatment appliance comprising an improved drawer

Also Published As

Publication number Publication date
IT222457Z2 (it) 1995-04-20
ITMI910523U1 (it) 1992-12-12
DE69203674D1 (de) 1995-08-31
DE69203674T2 (de) 1996-01-11
ITMI910523V0 (it) 1991-06-12
EP0528768A1 (fr) 1993-02-24

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