EP3473765A1 - Buse pour l'alimentation en eau d'une machine a laver - Google Patents

Buse pour l'alimentation en eau d'une machine a laver Download PDF

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Publication number
EP3473765A1
EP3473765A1 EP17197081.7A EP17197081A EP3473765A1 EP 3473765 A1 EP3473765 A1 EP 3473765A1 EP 17197081 A EP17197081 A EP 17197081A EP 3473765 A1 EP3473765 A1 EP 3473765A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
washing machine
detergent container
detergent
container
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.)
Withdrawn
Application number
EP17197081.7A
Other languages
German (de)
English (en)
Inventor
Magnus SALOMONSSON
Jovic NEBOSJA
Johannes LINDGREN
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.)
Electrolux Professional AB
Original Assignee
Electrolux Laundry Systems Sweden AB
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 Electrolux Laundry Systems Sweden AB filed Critical Electrolux Laundry Systems Sweden AB
Priority to EP17197081.7A priority Critical patent/EP3473765A1/fr
Publication of EP3473765A1 publication Critical patent/EP3473765A1/fr
Withdrawn legal-status Critical Current

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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
    • 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/088—Liquid supply arrangements

Definitions

  • the present invention relates to a washing machine, especially to a nozzle for supply of water in the washing machine.
  • WO 2016/078714 discloses a washing machine comprising a detergent dispenser with compartments, structured for being filled with an amount of a detergent product.
  • the detergent product is held in place until flushed by a flow of water into a washing compartment in the washing machine. Water is supplied to the compartments through holes in the top of the detergent dispenser.
  • a problem associated with such a supply of water is that such holes often are clogged by limestone and detergent products and the holes are inaccessible and difficult to clean.
  • the entire detergent dispenser is often replaced when the holes are clogged, leading to an increased cost for the consumer.
  • An object of the present invention is therefore to obtain a washing machine that can be operated at a lower cost.
  • a washing machine comprises a nozzle, directed towards a detergent container adapted to be loaded with a detergent product, for supplying a water flow into the detergent container.
  • the nozzle is connected to a water supply system in the machine, and comprises a connector for connecting to the water supply system, wherein the connector is configured to allow the nozzle to be removed from and re-connected to the water supply system.
  • This arrangement allows the user to remove and clean the nozzle if wholly or partly clogged by limestone and detergent products. Subsequently, the user may reconnect the nozzle to the washing machine.
  • a washing machine that can be operated at a lower cost, since the nozzle easily may be removed from the washing machine, cleaned or exchanged and re-connected to the washing machine without necessity to replace the entire detergent dispenser. This action, users may easily do on their own without any help of a service technician.
  • the detergent container may be pivotable about a pivot axis between an upright position, in which the detergent container is upright to be loaded with a detergent product, and a tilted position, in which the detergent container is tilted for discharging of the detergent product into a washing compartment of the washing machine.
  • This solution also makes it possible to flush the detergent container with water when the detergent container has been tilted and thereby more or less eliminating a film of residues on the container walls that needs to be cleaned manually.
  • the nozzle can protrude into the detergent container, both when the detergent container is in the upright and the tilted position.
  • the nozzle may be directed towards the detergent container from above when the detergent container is in the upright position.
  • the nozzle may be directed to produce a water flow along an inner wall of the detergent container when the latter is in the tilted position.
  • the nozzle may be openable, for instance by comprising two portions, that can be joined together by a locking device, for instance comprising a snap lock.
  • the two nozzle portions can be separated from each other by opening the locking device, and cleaning of a clogged nozzle becomes even more easy to perform.
  • the two nozzle portions may comprise an outer portion enveloping an inner portion, whereby a gap being formed therebetween, such that a water flow can be directed towards the detergent container.
  • the shape of the nozzle opening may be a curved gap, and this shape may be in conformity with a portion of the inner walls in the detergent container.
  • the geometry of the nozzle provides a strong water flow directed towards the inner wall of the detergent container, which can rinse the detergent product from the detergent container, both when the detergent container is in the upright and tilted position. This allows a smaller amount of detergent product to be used, since the detergent product may be very efficiently dicharged into the washing compartment of the washing machine, leaving less residues in the container that the user needs to clean.
  • the nozzle connector may comprise an O-shaped rubber ring to obtain a leakproof seal between the nozzle and the washing machine.
  • the O-shaped rubber ring may easily be exchanged when worn out or broken by disconnecting the nozzle connector from the water supply system.
  • Fig. 1 illustrates schematically a frontloaded washing machine 1 comprising a parallelepiped-shaped casing 3, a cylindrical washing compartment 5, indicated arranged inside the casing 3 and an electrically-powered motor (not shown), which is adapted to drive a drum in the washing compartment 5.
  • a door 9 is attached to a front wall 7 of the casing 3 for watertight sealing of the washing compartment 5.
  • a detergent dispenser 11 is located, which is adapted for feeding a given quantity of detergent products into the washing compartment 5.
  • the washing machine 1 may further comprise an appliance control panel 13 located on the front wall 7 of the casing 3, which allows the user to manually select a desired washing cycle among several available washing cycles.
  • a fresh-water supply circuit (not shown) is connected to the water main for providing a flow of fresh water from the water main to the detergent dispenser 11 and/or to the washing compartment 5 according to the washing cycle selected by the user. Needless to say, other washing machine configurations are possible in the present disclosure.
  • a detergent dispenser 11 may comprise a drawer 15, located inside the front wall 7 of the washing machine 1, typically above the washing compartment 5 and beside the appliance control panel 13.
  • An outer handle 17, may be flush with the front wall 7 when the drawer 15 is closed.
  • Two horizontal side walls 19 can be attached to the handle 17.
  • Partitions 21 may be disposed inside the drawer 15, to which partitions 21 at least one detergent container 23 can be attached.
  • four detergent containers 23 are used, having different sizes and intended uses.
  • the detergent containers 23 may be adapted to be loaded with detergent products, such as detergents, bleaching agents, fabric softeners and like in the form of a powder, a liquid, or a tablet etc.
  • the detergent dispenser 11 may further comprise a frame 25, and a casing 27 attached to the frame 25. These parts 25, 27 can be made of a plastic material, such as polypropylene by injection molding.
  • the drawer 15 can be movable inside the casing 27 in a substantially horizontally-orientated displacement direction d, and may as illustrated be tilted downwards once extending out of the machine.
  • the casing 27 may comprise a box-shaped base portion 29, and a removable lid 31.
  • the box-shaped base portion 29 may comprise two side walls 33, a rear wall 35, and an opening 37 opposite the real wall 35.
  • the frame 25 is attached to the washing machine in the vicinity of the opening 37, and the drawer 15 can be inserted into the casing 27 through the opening 37.
  • At least one nozzle 39 may be connected to a fresh water supply circuit 55 at the rear wall 35 of the casing 25. In the illustrated case four nozzles 39 are shown, having three different sizes, and conforming to the detergent containers 23 shown in fig 2 , but other variations are possible.
  • the lid 31 of the casing 27 may comprise notches 41 for the nozzles 39.
  • the detergent container 23 may be shaped like a cup.
  • the detergent container 23 can be made of a plastic material, such as polypropylene, by injection moulding.
  • Polypropylene T20 is one example of a suitably used material.
  • a pin 43 may be formed in opposing sides of the detergent container 23.
  • the detergent container 23 By inserting the pins 43 into slots 45 of the partitions 21 in the detergent dispenser 11, the detergent container 23 becomes pivotable about a pivot axis (not shown) relative to the drawer 15 between an upright position (A), as seen in fig 5a and 5c , in which the detergent container 23 is upright to be loaded with a detergent product and a tilted position (B), as seen in fig 5b and 5d , in which the detergent container 23 is tilted for discharging of the detergent product in the detergent container 23 into the washing compartment 5 of the washing machine 1.
  • the detergent container 23 may have an asymmetrical shape in form of differently angled walls 47, 49, a front wall 47, facing the front of the drawer 15 and a rear wall 49, facing the interior of the casing 27. Thanks to the asymmetrical shape, the container may tilt automatically when filled with water to a predetermined level.
  • the rear wall 49 can have a lip 51 curving away from the interior of the detergent container 23, which creates a jug-like configuration of the detergent container 23.
  • Figs 6a-6d illustrate the nozzle 39 as seen from its lower side.
  • the nozzle 39 can be made of a plastic material, such as polypropylene, PP. It may comprise a connector 53 for connection of the nozzle 39 to a water supply circuit 55 at the rear wall 35 of the casing 27 (cf. fig 4 ).
  • the connector 53 may be configured to allow the nozzle 39 to be removed from and re-connected to the water supply circuit 55, as seen in Fig 4 .
  • the nozzle 39 may also comprise of two portions 57, 59, an inner portion 57 and an outer portion 59.
  • the inner portion 57 may be smaller than the outer portion 59 and can be inserted into the outer portion 59, the outer portion enveloping the inner.
  • a locking device may together attach the portions 57, 59 to each other.
  • a nozzle 39 that can be opened, disassembled, and each portion 57, 59 can be cleaned separately.
  • Other options for obtaining an openable nozzle are possible, for instance using two similar halves that are snapped together.
  • the inner 57 and outer 59 portions can each comprise a base plate 60, 61, whose lateral edges have been folded upwards to form horizontal side walls 62, 63.
  • the locking device may be a snap lock formed by hooks 65 on the horizontal side walls 62 of inner portion 57 that are inserted into recesses 67 in the horizontal side walls 63 of the outer portion 59. It should be noted that this is only one example of a locking device, and other suitable embodiments can be used.
  • the connector 53 may be an elongated tube, with one end attached to the base plate 60 of the inner portion 57 and the other end attached to the water supply system (not shown) by being connected to a water supply circuit 55 at the rear wall 35 of the casing 27.
  • the tube of the connector 53 is then inserted into a tube of the water supply system where it fits tightly.
  • the supply of water from the water supply circuit 55 to the nozzle 39 may be controlled by a separate valve (not shown) according to the selected washing cycles.
  • the connector 53 may be provided with a groove 69 for an O-shaped rubber ring to obtain a leakproof seal between the nozzle 39 and the water supply system (not shown) in the washing machine 1, although other solutions are possible.
  • the O-shaped rubber ring may be attached on the elongated tube of the connector 53, for formation of a leakproof seal when the elongated tube is inserted into the water supply circuit 55.
  • the O-shaped rubber ring can easily be replaced if worn out, and is accessed by disconnecting the nozzle connector 53 from the water supply circuit 55.
  • the front edges 71 of the base plate 61 at the inner portion 57 and the outer portion 59 can be curved and the horizontal side walls 63 may be equipped with a triangle shaped top 73, which are inclined relative the base plates 61, forming a curved part of the nozzle opening 75 (cf. fig 6d ) that is directed towards the detergent container 23.
  • Other solutions to provide a curved nozzle opening are possible.
  • the outer portion 59 may envelope the inner portion 57, a gap 75 being formed therebetween, such that the water flow can be shaped when directed towards the detergent container 23, as best seen in Fig. 6d .
  • the geometry of the nozzle 39 provides a strong, water flow directed towards the inner wall of the detergent container 23, which can rinse the detergent container 23 from any remaining detergent product, both when the detergent container 23 is in the upright (A) and especiall y in the tilted (B) position. This allows a smaller amount of detergent product to be used, as almost all of the detergent product is dicharged into the washing compartment 5 of the washing machine 1.
  • the water flow may be shaped to follow one inner wall of the container 23 and to proceed past corners at the ends of that wall and partly onto the adjoining lateral walls.
  • a nozzle configuration providing a curved water flow that follows the shape of more than one wall in a detergent container, could also be useful in a machine where the nozzle is not removable, but is permanently connected to the machine. It is also not necessary to use a tilting container to make use of this shaped flow, this could be useful also in a normal, fixed solid detergent compartment that is open towards and optionally slopes towards its rear side where water and detergent enters the washing compartment.
  • the nozzle 39 may protrude into the detergent container 23, as seen in Fig. 5c , when the detergent container 23 is in the upright position A and the water flow from the nozzle 39 may be directed towards the detergent container 23 from above.
  • the nozzle 39 may reach into the inner volume of the detergent container 23.
  • water supplied from the nozzle ends up in the detergent container 23 and is prevented from splashing into other detergent dispensers 11 nearby.
  • the curved lip 51 of the container rear wall provides a slightly lower end to allow the nozzle tip to enter in between the lateral edges of the container 23 when the drawer is pushed in.
  • the position of the nozzle 39 relative the detergent container 23 is changed when the detergent container 23 is tilted, as seen in fig 5d .
  • the nozzle 39 may still protrude into the detergent container 23, and the front wall 71 and the horizontal side walls 73 of the nozzle 39 may abut against the front wall 47 and the side walls 79 at the inner side of the detergent container 23.
  • the produced water flow from the nozzle 39 may be directed to follow the interior walls of the detergent container 23.
  • Most of the detergent product will follow the water flow into the washing compartment 5 of the washing machine 1 and does not to any greater extent form a film of residues on the interior walls of the detergent container 23 that need be manually cleaned.
  • the connector of the nozzle is devised to allow the nozzle to be removed from and re-connected to the water supply system but the nozzle is not openable.
  • the nozzle is openable but the connector of the nozzle fixedly connected to the water supply system.
  • the connector of the nozzle is devised to allow the nozzle to be removed from and re-connected to the water supply system and the nozzle is openable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP17197081.7A 2017-10-18 2017-10-18 Buse pour l'alimentation en eau d'une machine a laver Withdrawn EP3473765A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17197081.7A EP3473765A1 (fr) 2017-10-18 2017-10-18 Buse pour l'alimentation en eau d'une machine a laver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17197081.7A EP3473765A1 (fr) 2017-10-18 2017-10-18 Buse pour l'alimentation en eau d'une machine a laver

Publications (1)

Publication Number Publication Date
EP3473765A1 true EP3473765A1 (fr) 2019-04-24

Family

ID=60138301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17197081.7A Withdrawn EP3473765A1 (fr) 2017-10-18 2017-10-18 Buse pour l'alimentation en eau d'une machine a laver

Country Status (1)

Country Link
EP (1) EP3473765A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1746540U (de) * 1957-02-11 1957-06-13 Loehe & Dr Ross Ges Mit Beschr Waschautomat mit selbsttaetiger waschmittelzugabe.
DE7834912U1 (de) * 1978-11-24 1979-03-08 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Wasch- und Zusatzmitteleinspuelvorrichtung fuer Waschmaschinen
US4735228A (en) * 1986-06-21 1988-04-05 Lang Apparatebau Gmbh Device for dispersing solid detergents as aqueous suspensions or solutions
US5685178A (en) * 1994-11-11 1997-11-11 Samsung Electronics Co., Ltd. Detergent dissolution apparatus having a rotary water jet
US20060249183A1 (en) * 2005-05-09 2006-11-09 Welco Co., Ltd. Rotary nozzle and detergent dissolving system using the same
WO2012051685A2 (fr) * 2010-10-21 2012-04-26 Electrolux Do Brasil S.A. Améliorations apportées à un distributeur d'additifs dans un lave-linge automatique
WO2016015893A1 (fr) * 2014-08-01 2016-02-04 Arcelik Anonim Sirketi Machine à laver comprenant un distributeur d'agent de nettoyage
WO2016078714A1 (fr) 2014-11-20 2016-05-26 Electrolux Appliances Aktiebolag Machine à laver le linge

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1746540U (de) * 1957-02-11 1957-06-13 Loehe & Dr Ross Ges Mit Beschr Waschautomat mit selbsttaetiger waschmittelzugabe.
DE7834912U1 (de) * 1978-11-24 1979-03-08 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Wasch- und Zusatzmitteleinspuelvorrichtung fuer Waschmaschinen
US4735228A (en) * 1986-06-21 1988-04-05 Lang Apparatebau Gmbh Device for dispersing solid detergents as aqueous suspensions or solutions
US5685178A (en) * 1994-11-11 1997-11-11 Samsung Electronics Co., Ltd. Detergent dissolution apparatus having a rotary water jet
US20060249183A1 (en) * 2005-05-09 2006-11-09 Welco Co., Ltd. Rotary nozzle and detergent dissolving system using the same
WO2012051685A2 (fr) * 2010-10-21 2012-04-26 Electrolux Do Brasil S.A. Améliorations apportées à un distributeur d'additifs dans un lave-linge automatique
WO2016015893A1 (fr) * 2014-08-01 2016-02-04 Arcelik Anonim Sirketi Machine à laver comprenant un distributeur d'agent de nettoyage
WO2016078714A1 (fr) 2014-11-20 2016-05-26 Electrolux Appliances Aktiebolag Machine à laver le linge

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