EP2655722B1 - Dispenser and washing machine comprising the dispenser - Google Patents

Dispenser and washing machine comprising the dispenser Download PDF

Info

Publication number
EP2655722B1
EP2655722B1 EP11810686.3A EP11810686A EP2655722B1 EP 2655722 B1 EP2655722 B1 EP 2655722B1 EP 11810686 A EP11810686 A EP 11810686A EP 2655722 B1 EP2655722 B1 EP 2655722B1
Authority
EP
European Patent Office
Prior art keywords
regulating means
panel
tray
configuration
dispenser
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.)
Not-in-force
Application number
EP11810686.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2655722A1 (en
Inventor
Gianluca Pierucci
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.)
Whirlpool EMEA SpA
Original Assignee
Indesit Co SpA
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 Indesit Co SpA filed Critical Indesit Co SpA
Publication of EP2655722A1 publication Critical patent/EP2655722A1/en
Application granted granted Critical
Publication of EP2655722B1 publication Critical patent/EP2655722B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status 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
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state

Definitions

  • This invention relates to a liquid detergent dispenser for a washing machine and a washing machine comprising the dispenser.
  • washing machines comprising a washing compartment and a detergent delivery drawer which is in fluid communication with the washing compartment.
  • the drawer is divided into different sections, including at least one for holding the powder detergent.
  • the drawer section for the powder detergent is in fluid communication with the washing compartment.
  • an additional dispenser comprising a tray inserted in the drawer section which holds the liquid detergent.
  • This tray has a siphon which extends upwards away from the bottom of the tray and which, if conveniently primed by the addition of the washing water, allows the detergent in the tray to be extracted.
  • the siphon has proved to be insufficient to extract the detergent completely from the tray and detergent residues tend to remain in the tray after washing has been completed.
  • prior art washing machines have an opening made in one wall of the tray to facilitate outflow of the detergent.
  • This opening can be occluded by a valve which pivots about an axis of rotation and if the detergents used are not dense, the valve is kept closed. In the case of dense detergents, on the other hand, it is opened.
  • this valve is not free of disadvantages.
  • machine vibrations, shocks caused by the closing of the drawer or the force of the detergent fluid flowing past the valve can cause unwanted turning of the valve, thus modifying the extent to which the user has set its opening.
  • a further disadvantage is that assembly of the valve to the rest of the tray is best performed directly at the factory and not by the end user.
  • Patent application US2010/0000578A1 discloses a clothes washing machine comprising a bulk dispensing system configured to deliver a charge of treating chemistry to the treating chamber and a method for automatically flushing said bulk dispensing system.
  • the technical purpose which forms the basis of this invention is to propose an improved liquid detergent dispenser for a washing machine that overcomes the above mentioned drawbacks of the prior art.
  • the aim of this invention is to provide a liquid detergent dispenser for a washing machine which prevents user settings from being accidentally altered.
  • a further aim of the invention is to provide a liquid detergent dispenser which is robust and reliable.
  • a yet further aim of the invention is to provide a liquid detergent dispenser which is easy to assemble, allowing final assembly to be performed directly by the user.
  • the reference numeral 1 in the accompanying drawings denotes a liquid detergent dispenser for a washing machine.
  • the dispenser 1 comprises a tray 2 adapted to hold the liquid detergent.
  • the tray 2 comprises a lower base 20 (lower, in the operating configuration, with reference to the physical vertical) and lateral containment means 21 designed to receive the detergent.
  • the base 20 is substantially quadrilateral.
  • the lateral containment means 21 extend from, and in a direction away from, the base 20. Conveniently, the lateral containment means 21 comprise a plurality of substantially vertical flanks.
  • the dispenser 1 comprises a siphon 3 which extends at least partly from the lower base 20 of the tray 2 and which, if primed, allows at least part of the liquid detergent located in the tray 2 to be discharged to the outside of the tray 2.
  • the siphon 3, if not primed, defines a difference in level relative to the base of the tray 2 which prevents the liquid detergent from flowing spontaneously out of the tray 2.
  • the siphon 3 comprises an inner wall 51 and an outer wall 52 between which a first stretch of a channel 53 for discharging the liquid detergent from the tray 2 is interposed.
  • the inner wall 51 extends away from the base 20 of the tray 2. More specifically, the inner wall 51 is made as a single part with the tray 2.
  • the outer wall 52 of the siphon 3 is coaxial with the inner wall 51 of the siphon 3.
  • the discharge channel 53 comprises a second stretch located inside the inner wall 51.
  • the first and second stretches of the discharge channel are in fluid communication in a connecting stretch which is spaced from the base 20, in particular at one end of the inner wall 51 away from the base 20 (in the connecting stretch, the fluid inverts its outflow direction and hence the outflow direction in the first stretch of the channel 53 is opposite to that in the second stretch).
  • the liquid in the tray 2 In order to prime the siphon 3, the liquid in the tray 2 must reach a level above the level where the connecting stretch is located.
  • the lateral containment means 21 comprise an opening 22 for allowing an additional discharge of the liquid detergent.
  • the dispenser 1 also comprises means 4 for regulating the flow of liquid detergent through the opening 22, and able to move between a first and a second configuration.
  • the regulating means 4 occlude the opening 22 more than they do in the second configuration (see Figures 4a and 4b ).
  • the opening 22 might even be completely occluded.
  • the regulating means 4 comprise a body 40 which in turn comprises a first panel and a second panel 41, 42, which obstruct the opening 22 in the first and in the second configuration, respectively.
  • the second panel 42 does not obstruct the opening 22 even partially.
  • the first panel 41 does not obstruct the opening 22 even partially.
  • the first panel 41 when the regulating means 4 are in the first configuration (see Figures 3a and 3b ), obstructs the opening 22 more than the second panel 42 does when the regulating means 4 are in the second configuration (see Figures 4a and 4b ).
  • the first configuration of the regulating means 4 is optimal for using a liquid detergent which is not very dense.
  • the siphon 3 might by itself be able to discharge the detergent present in the tray 2 and the opening 22 might be completely occluded or in any case occluded more than when the regulating means 4 are in the second configuration and the liquid detergent used is more dense.
  • the more dense the liquid detergent is the more the detergent residues which the siphon 3 itself is unable to discharge from the tray 2.
  • first and second panels 41, 42 are irremovably connected to at least one portion of the siphon 3. More specifically, the outer wall 52 of the siphon 3 is irremovably constrained to the first and second panels 41, 42 (the outer wall 52 conveniently forming part of the body 40). In this regard, the outer wall 52 is integrated into the body 40.
  • the opening 22 is delimited by a lower edge 23 and by two edges 24a, 24b which extend away from the lower edge 23.
  • the first panel 41 comprises a first edge 410 which, when the regulating means 4 are in the first configuration, is at (preferably facing) the lower edge 23 and the second panel 42 comprises a second edge 420 which, when the regulating means 4 are in the second configuration, is at (preferably facing) the lower edge 23.
  • the minimum distance between the first edge 410 and the lower edge 23 is less than the distance between the second edge 420 and the lower edge 23.
  • the regulating means 4 comprise an end portion 43 which the first and second panels 41, 42 extend away from. When the regulating means 4 are in the first and second configurations, the first and/or the second panel 41, 42 extending from the end portion 43 towards the base 20 of the tray 2.
  • the end portion 43 is integrated into the body 40.
  • the end portion 43 is the upper portion of the regulating means 4 (the upper portion must be considered with reference to the first and second configurations of the regulating means 4).
  • the end portion 43 is the portion of the regulating means 4 which, in the first and second configurations of the selfsame regulating means, is located at the greatest distance from the base 20 of the tray 2.
  • the end portion 43 comprises two hollows 431, 432 extending in two opposite zones of the end portion 43 for facilitating the grip on the body 40 of the regulating means 4.
  • the end portion 43 (more specifically, an upper plate 433 of the end portion 43) comprises a perimeter edge 430 comprising two hollows 431, 432 extending in two opposite perimeter portions of the perimeter edge 430 in order to facilitate the grip on the body 40 of the regulating means 4.
  • the two hollows 431, 432 are such as to extend towards each other inside the end portion 43 (in particular, inside the plate 433).
  • the user can insert two fingers of one hand into the two hollows 431, 432 to facilitate extraction. More specifically, without the two hollows 431, 432 a user would find it difficult (on account of the insufficient space) to insert his/her fingers between the lateral containment means 21 and the plate 433.
  • the plate 433 has a first and a second visual reference 71, 72 on it.
  • the first visual reference 71 is located at a first stretch of the perimeter edge near where the first panel 41 extends and the second visual reference 72 is located at a second stretch of the perimeter edge 430 near where the second panel 42 extends.
  • the first visual reference 71 or the second 72 comprises a legend which allows the user to recognise whether the first panel 41 or the second 42 is located at the opening 22 (there might also be illustrative symbols, however).
  • the regulating means 4 in particular the body 40
  • the body 40 when they are in the first configuration, are rotated by 180° relative to the second configuration (compare Figures 3a and 4a or 3b and 4b ).
  • the lateral containment means 21 comprise contact means 25 which, at least when the regulating means 4 are in the first and second configurations, are in contact with the body 40 of the regulating means 4, preventing any further movement of the body 40 towards the lower base 20 of the tray 2.
  • the contact means 25 also prevent the body 40 from rotating (in particular about an axis which is transversal to the base 20 and, still more specifically, which coincides with the physical vertical).
  • the lateral containment means 21 also comprise a recess 210 which, when the regulating means 4 are in the first and second configurations, respectively receive a first and a second protrusion 211, 212 integral with the body 40.
  • the first and second protrusions 211, 212 are exactly shaped to match the recess 210. More specifically, the first and second protrusions 211, 212 exactly follow the profile of the recess 210 along the joining line (the recess 210 and the first and second protrusions 211, 212 are thus matchingly shaped). This makes it possible to prevent or limit the amount of detergent that is discharged if the level of detergent in the tray 2 exceeds the joining line.
  • the borders of the containment means 21 which delimit the recess 210 form part of the contact means 25.
  • the recess 210 is joined to the opening 22 uninterruptedly.
  • the two recesses 210, 213 extend one on each side of the opening 22 and are joined to the opening 22 uninterruptedly (see for example Figure 2 ).
  • the dispenser 1, preferably the body 40 comprises a first and a second graduated scale 6, 60 for measuring the volume of detergent present in the tray 2.
  • the first and second graduated scales 6, 60 are located at the first and second panels 41, 42, respectively. In an example embodiment not illustrated, the first and second graduated scales 6, 60 are reproduced on the first and second panels 41, 42.
  • the first and second graduated scales 6, 60 comprise a first and a second tab 44, 45 which are superposed at least partly over the first and second panels 41, 42.
  • the first and the second panels 41, 42 are interposed between the first and second tabs 44, 45.
  • the siphon 3 is interposed at least partly (preferably almost completely) between the first panel 41 and the second 42.
  • This invention also has for an object a washing machine 10 comprising:
  • the removable dispenser 1 described above is not used and, advantageously, the powder detergent is placed directly in the housing.
  • powder detergent even if placed in the housing, does not flow out spontaneously into the washing compartment but remains in place until it is carried out by the washing water that is made to flow in the housing during the washing cycle 12.
  • the dispenser 1 must be applied to the housing. Moreover, if the liquid detergent is particularly dense, the regulating means 4 of the dispenser 1 must be set to the second configuration (see Figures 4a and 4b ). Alternatively, if the liquid detergent is not very dense, the regulating means 4 of the dispenser 1 must be set to the first configuration (see Figures 3a and 3b ).
  • the dispenser 1 might be irremovably integrated directly into the drawer 11 (and, for example, an additional housing provided for powder detergent).
  • the regulating means are shaped in such a way as to make them solid and robust.
  • the regulating means 4 (and more specifically, the body 40) can be made by moulding and easily assembled to the tray (also made preferably by moulding) directly by the end user. That means the dispenser need not be factory-assembled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Detergent Compositions (AREA)
EP11810686.3A 2010-12-21 2011-12-21 Dispenser and washing machine comprising the dispenser Not-in-force EP2655722B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRN2010A000079A IT1403776B1 (it) 2010-12-21 2010-12-21 Dispensatore e lavabiancheria comprendente detto dispensatore
PCT/IB2011/055849 WO2012085858A1 (en) 2010-12-21 2011-12-21 Dispenser and washing machine comprising the dispenser.

Publications (2)

Publication Number Publication Date
EP2655722A1 EP2655722A1 (en) 2013-10-30
EP2655722B1 true EP2655722B1 (en) 2015-06-10

Family

ID=43737335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11810686.3A Not-in-force EP2655722B1 (en) 2010-12-21 2011-12-21 Dispenser and washing machine comprising the dispenser

Country Status (3)

Country Link
EP (1) EP2655722B1 (it)
IT (1) IT1403776B1 (it)
WO (1) WO2012085858A1 (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10648121B2 (en) 2016-11-17 2020-05-12 Whirlpool Corporation Laundry treating appliance and dispenser

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8052805B2 (en) * 2008-07-01 2011-11-08 Whirlpool Corporation Method for automatically flushing a bulk dispensing system in a cleaning appliance
US8397544B2 (en) * 2008-07-01 2013-03-19 Whirlpool Corporation Household cleaning appliance with a single water flow path for both non-bulk and bulk dispensing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10648121B2 (en) 2016-11-17 2020-05-12 Whirlpool Corporation Laundry treating appliance and dispenser
US11214911B2 (en) 2016-11-17 2022-01-04 Whirlpool Corporation Laundry treating appliance and dispenser
US11773527B2 (en) 2016-11-17 2023-10-03 Whirlpool Corporation Laundry treating appliance and dispenser

Also Published As

Publication number Publication date
EP2655722A1 (en) 2013-10-30
ITRN20100079A1 (it) 2012-06-22
IT1403776B1 (it) 2013-10-31
WO2012085858A1 (en) 2012-06-28

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