EP0974302B1 - Dispositif de rincage pour lave-vaisselle - Google Patents

Dispositif de rincage pour lave-vaisselle Download PDF

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Publication number
EP0974302B1
EP0974302B1 EP99113672A EP99113672A EP0974302B1 EP 0974302 B1 EP0974302 B1 EP 0974302B1 EP 99113672 A EP99113672 A EP 99113672A EP 99113672 A EP99113672 A EP 99113672A EP 0974302 B1 EP0974302 B1 EP 0974302B1
Authority
EP
European Patent Office
Prior art keywords
washing
rinsing
chamber
arm
hub
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
EP99113672A
Other languages
German (de)
English (en)
Other versions
EP0974302A2 (fr
EP0974302A3 (fr
Inventor
Markus Wörter
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.)
Premark FEG LLC
Original Assignee
Premark FEG LLC
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 Premark FEG LLC filed Critical Premark FEG LLC
Publication of EP0974302A2 publication Critical patent/EP0974302A2/fr
Publication of EP0974302A3 publication Critical patent/EP0974302A3/fr
Application granted granted Critical
Publication of EP0974302B1 publication Critical patent/EP0974302B1/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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays

Definitions

  • the invention relates to a washing or rinsing device for a dishwasher according to the preamble of Claim 1.
  • Dishwashers have especially for the In the household area, a rectangular washing container, the front of which is provided with a loading door in order to Access to the in the dishwasher on rails to arrange arranged baskets.
  • a washing arm Within the Dishwasher is arranged at least one washing arm, which is rotatable about an axis.
  • the wash arm can rotate in the dishwasher, it must be designed so that it moves in on a horizontal plane sweeps a circular area that themselves within the rectangular or horizontal section square housing of the dishwasher.
  • European patent application 0 559 466 A1 relates to this Problem of insufficient loading on the corner areas a dishwasher with washing-up liquid. This Problem is solved by four special rinse arms that like this are arranged that special corner areas of Dishwasher can be subjected to more stress. These four Auxiliary wash arms each have only one inner one Hollow chamber and increase the total water consumption as a The majority of those emerging from these auxiliary rinse arms Liquid directly against the inner walls of the Dishwasher is directed.
  • the German utility model 297 18 777 U1 also applies the problem of insufficient loading on the corners a dishwasher with washing-up liquid.
  • On Main wash arm and an auxiliary wash arm that rotates on Main wash arm is attached are used, the Auxiliary wash arm on the wall of the dishwasher sweeps along and under the influence of centrifugal force can also reach the corner areas.
  • the total water consumption very much high because the auxiliary rinse arm, depending on the geometry of the Dishwasher, brushes closely against the inner wall and therefore a large amount of flushing liquid in one Area in which they are not used can.
  • DE 3 813 510 A describes a washing or rinsing arm with separate chambers.
  • the invention has for its object a washing or Propose a washing device for a dishwasher, in which the loading of the corner areas is improved and yet the total water consumption was kept low can be.
  • the invention is based on the idea that the rotatable washing or rinsing arm carried on one axis two separate Has chambers, each chamber at least one Inlet opening and at least one outlet opening for Has washing or rinsing liquid.
  • the at least one outlet opening as a corner spray nozzle is trained and only in defined rotational positions of the Washing or rinsing arm with washing or rinsing liquid can be acted upon, the corner area of the Dishwasher with an additional jet of washing or apply rinsing liquid without the Water consumption increased significantly. If too The common usage in the following is always based on The terms “wash arm” and "wash liquid” are used, it should be clear that both rinse arms and Wash arms are referred to, from which rinsing or Washing liquid escapes.
  • corner spray nozzle is understood to mean a nozzle whose geometry is designed so that in the corner area a crockery basket arranged with Flush liquid can be applied.
  • the axis points a single flow space for rinsing liquid. This has the advantage that the axis is simple and inexpensive can be executed; above all, however, can be a simple way an existing flushing device for a Dishwasher using the herein Convert described rinse arm.
  • the rinse arm includes a hub that is on the axle can be attached and carries the rinsing arm and still has the axis has four holes with the flow space in Connect.
  • the hub also has four holes, those defined with the second chamber of the rinse arm and in Rotation positions with the four holes in the axis in Flow connection.
  • This possibility of targeted Actuation of the corner spray nozzles is characterized by a very simple design of the axis. Also this allows retrofitting of existing ones Realize dishwashers. Beyond that by arranging the four holes in the axis the pressure build-up of the flushing liquid in the second chamber of the Low rinsing and the flow through the corner spray nozzles defined angular ranges of the circulation of the wash arm realize.
  • this measure which is characterized, for example, by training an annular groove on the outer circumference of the axis, or one Technically implement the annular groove on the inner circumference of the hub ensured that the outlet openings of the rinse arm, the communicate with the first chamber during the Rotary movement of the wash arm evenly with wash liquid are applied, while the corner spray nozzles only in those areas during the circulation of the wash arm are flowed through, in which a targeted application of the Corner areas is needed.
  • the farthest outlet openings of the first chamber removed from the hub of the rinse arm designed so that they in the rinsing liquid give an angle radially inwards. This measure poses sure that the rinsing liquid dispensed is not against the Walls of the dishwasher is directed and thus remains unused.
  • the special Corner spray nozzles can be used using the Dishwashing liquid on the dishwashing function of the dishwasher optimize it.
  • Fig. 1 is a schematic horizontal section through a Dishwasher shown, generally with Reference number 10 is called.
  • the dishwasher usually has one around a horizontal axis pivoting door, but not in the present case is shown. When closed, the interior the dishwasher is delimited by four side walls 12, which have the same dimensions in the present case, so that the interior of the dishwasher 10 in horizontal Cut has a square cross section.
  • Dish rack 23 has the cross section of the interior of the Dishwasher adapted one essentially square shape in the viewing direction according to FIG. 1.
  • a rinsing device which consists of a Flush arm 14 and an axis 16, on which the Rinse arm is rotatably held.
  • the rinse arm 14 is regarding its length designed so that during its Rotating movement in the interior of the dishwasher to the Can sweep along side walls 12 without this touch.
  • Fig. 1 shows the corresponding circumferential circle 18.
  • the flush arm 14 has corner spray nozzles 22, which are special are designed to act upon the To achieve flush areas not reached corner areas 20. For this are near the radially outer end of the flush arm Nozzles 22 arranged depending on the geometry of the Dishwasher rinsing liquid essentially after given up or down. In addition, they are Corner spray nozzles 22 shaped so that when the Flushing liquid up or down also one Directional component is generated radially outwards.
  • the corner spray nozzles are not during the entire circulation of the Flush arm 14 in operation, but only when the Arm is located in an area where it is in one of the Diagonals to the rectangular cross section of the Dishwasher is aligned. Because of the targeted Operation of the corner spray nozzles 22 forms in this area one schematically in Fig. 1 in each of the corner areas shown area F, which is the delivery of the from Corner spray nozzles 22 leaking rinsing liquid in the case represents in which the escaping liquid is not by the Presence of the side walls 12 would be limited.
  • the diagram in Fig. 1 is also schematic shown example each a part of the ejected Liquid collected from the side walls 12.
  • Fig. 2 shows a sectional view along the line A-A in Fig. 1 shows and gives a possible configuration of the rinse arm 14 and the flow connection to the axis 16 to the targeted application of the corner spray nozzle only in the Technically to implement the corner area.
  • the flush arm 14 consists of shaped elements, each on the Hub 24 are attached.
  • the lower element 28 engages a first paragraph 30 in the hub 24 while the upper element 26 is fitted in a paragraph 32.
  • the upper element is crimped around lower element 28, around the upper member 26 and the lower member 28 with each other connect to.
  • Through the two elements 26 and 28 in Interaction with the hub 24 creates a cavity that is divided into two chambers by a cutting disc 34.
  • the cutting disc only over part of the radial extent of the rinse arm and the elements 26 and 28 so be shaped so that they delimit two separate chambers.
  • the hub 24 has an inner diameter which is dimensioned in this way is that it is pushed onto the axis 16 with little play can be.
  • the axial fixation between axis 16 and hub 24 to each other is not shown in Fig. 2, because here any solution known to the person skilled in the art can be used can. Axial fixation must be within narrow tolerances be ensured, as will be described later the flow channels for the passage of the rinsing liquid from the interior of the axis 16 designed as a hollow cylinder ensured in the first or second chamber of the wash arm can be.
  • first bores 40 which connect between a annular groove 42 on the outer circumference of the axis 16 with the Create the first chamber 36.
  • the annular groove 42 is through Bores 44 with the inner flow space 46 of the axis 16 connected so that during the operation of the feed pump for Always flush the annular groove with liquid is filled under pressure, which during the rotation of the Flush arm 14 can penetrate into the first chamber 36.
  • Outlet nozzles through which are not shown in FIG. 2 the rinsing liquid from the first chamber 36 towards the baskets are pushed out. How from the 1, these outlet nozzles 48 radially spaced from each other on the wash arm 14 be and to the needs of each Dishwasher regarding their position as well as theirs Design, the influence on the geometry and the strength of the ejected liquid. It there is also the possibility that on the rinse arm 14th arranged outlet nozzles 48 to arrange or their Adjust the ejection direction so that when operating the Liquid pump (not shown) by the Recoil effect of those emerging from the outlet nozzles Liquid the rinse arm 14 about the axis 16 in rotation is transferred.
  • second bores 50 are in the hub 24 shown in FIG Sectional view with corresponding holes 52 in the Align axis 16.
  • the Flow connection between the inner flow space 46 of the Axis 16 and the second chamber 38 designed so that the Only then do the rinsing liquid flow into the second chamber 38 can when the flush arm 14 is in a diagonal position located as shown in Fig. 1.
  • four holes 52 are in the stationary in the Dishwasher arranged axis 16 provided that the four second bores 50 only at a rotational position of the Flush arm corresponding to the position shown in Fig. 1 as well are rotated by 90 °.
  • FIG. 3 and 4 each show those shown in Fig. 1 Cuts along lines B-B and C-C. As from the figures can be seen is in the area of the cuts B-B and C-C no more cutting disc between the upper one, made of sheet metal or Plastic-made element 26 and the corresponding lower element made of sheet metal or plastic 28 intended. while in the range shown in Fig. 3 Sectional view B-B, the first chamber 36 and the second Chamber 38 offset from the longitudinal axis 54 of the flush arm 14 are arranged and the upper element 26 and lower element 28 lie close together in the area of the axis 54 in order to Flow connection between the first chamber 36 and the Preventing second chamber 38 is in the area of Sectional view C-C only the second chamber 38 formed which the flow connection to the corner spray nozzle 22 manufactures.
  • the corner spray nozzles 22 are shaped so that the jet on Flushing liquid not only in the vertical direction, but also is also delivered at an angle radially outwards to reach the corner areas 20 (see FIG. 1).
  • the outlet nozzles 48 which are independent of the Rotational position of the rinse arm are operated at the Requirements for good cleaning in the Dishwasher, but also a small one Be adapted to water consumption. It could be useful here be the radially outermost outlet nozzles 48a so that the rinsing liquid is not only in vertical direction, but also at an angle radially is delivered inside. This makes it unnecessary Avoid water loss caused by hitting the Flushing liquid on the side walls 12 and the unused Running down the side walls is generated.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (6)

  1. Dispositif de lavage ou de rinçage pour lave-vaisselle, comprenant :
    un bras de lavage ou de rinçage (14) ; ainsi qu'
    un axe (16), qui porte de manière rotative le bras de lavage ou de rinçage (14) ; où
    le bras de lavage ou de rinçage (14) présente, lorsqu'on le considère en coupe transversale, une première chambre (36) et une seconde chambre (38) séparée de la première chambre ; et
    la première chambre (36) et la seconde chambre (38) présentent respectivement au moins un orifice d'entrée (40, 50) ainsi qu'au moins un orifice de sortie (48, 48a, 22) pour le liquide de lavage ou de rinçage ;
       caractérisé en ce que
    le au moins un orifice de sortie (22) de la seconde chambre (38) est réalisé sous la forme d'une buse de pulvérisation d'angle (22) pour la zone angulaire du lave-vaisselle, et ne peut être sollicité que dans des positions de rotation définies du bras de lavage ou de rinçage (14) sur l'axe (16).
  2. Dispositif de lavage ou de rinçage pour lave-vaisselle selon la revendication 1,
       caractérisé en ce que,
       l'axe (16) présente un espace d'écoulement (46) individuel pour le liquide de lavage ou de rinçage.
  3. Dispositif de lavage ou de rinçage selon la revendication 2,
       caractérisé en ce que,
    le bras de lavage ou de rinçage (14) comprend un moyeu (24), qui peut être fixé sur l'axe (16) et porte le bras de lavage ou de rinçage (14) ; et
    l'axe présente des alésages (52), qui se trouvent en liaison d'écoulement avec l'espace d'écoulement (46) intérieur de l'axe et dans des positions de rotation définies avec les alésages (50) dans le moyeu.
  4. Dispositif de lavage ou de rinçage selon la revendication 3, comprenant en outre des passages d'écoulement (40) dans le moyeu (24), qui se trouvent en liaison d'écoulement avec la première chambre (36) et se trouvent en liaison d'écoulement, indépendamment de la position de rotation du moyeu (24) par rapport à l'axe (16), avec l'espace d'écoulement (46) intérieur de l'axe (16).
  5. Dispositif de lavage ou de rinçage selon l'une quelconque des revendications précédentes,
       caractérisé en ce que,
       le bras de lavage ou de rinçage (14) présente deux éléments façonnés (26, 28), qui sont montés respectivement sur le moyeu (24) et l'un sur l'autre, et maintiennent un disque de séparation (34), qui sépare l'espace creux formé entre les éléments façonnés (26, 28) en la première chambre (36) et la seconde chambre (38).
  6. Dispositif de lavage ou de rinçage selon l'une des revendications 1 à 5,
       caractérisé en ce que,
       les orifices de sortie (48a) de la première chambre (36) du bras de lavage ou de rinçage (14) les plus éloignés du moyeu (24) sont réalisés de telle sorte qu'ils libèrent le liquide de lavage ou de rinçage dans un certain angle radialement vers l'intérieur.
EP99113672A 1998-07-22 1999-07-15 Dispositif de rincage pour lave-vaisselle Expired - Lifetime EP0974302B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19832982 1998-07-22
DE19832982A DE19832982C2 (de) 1998-07-22 1998-07-22 Spülvorrichtung für eine Geschirrspülmaschine

Publications (3)

Publication Number Publication Date
EP0974302A2 EP0974302A2 (fr) 2000-01-26
EP0974302A3 EP0974302A3 (fr) 2000-03-29
EP0974302B1 true EP0974302B1 (fr) 2003-10-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99113672A Expired - Lifetime EP0974302B1 (fr) 1998-07-22 1999-07-15 Dispositif de rincage pour lave-vaisselle

Country Status (4)

Country Link
US (1) US6325083B1 (fr)
EP (1) EP0974302B1 (fr)
AT (1) ATE252865T1 (fr)
DE (2) DE19832982C2 (fr)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP1731081A2 (fr) 2005-06-08 2006-12-13 Miele & Cie. KG Lave-vaisselle
DE102006012080A1 (de) * 2006-03-14 2007-09-27 Miele & Cie. Kg Spülmaschine

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DE10120894B4 (de) * 2001-04-27 2007-03-01 Miele & Cie. Kg Verfahren zum Spülen von Spülgut
DE10134917B4 (de) * 2001-07-18 2006-03-16 AEG Hausgeräte GmbH Geschirrspülmaschine mit veränderbarer Flüssigkeitsverteilung
DE102004018878B4 (de) * 2004-04-15 2006-01-05 Miele & Cie. Kg Geschirrspülmaschine mit einem Spülbehälter in dem wenigstens ein Sprüharm angeordnet ist
DE102005026558B3 (de) * 2005-06-08 2006-11-16 Miele & Cie. Kg Geschirrspülmaschine mit einem Spülbehälter in dem wenigstens ein Sprüharm angeordnet ist
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US7896977B2 (en) * 2007-12-19 2011-03-01 Whirlpool Corporation Dishwasher with sequencing corner nozzles
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US8852351B2 (en) * 2010-10-20 2014-10-07 Whirlpool Corporation Dishwasher with wash load detection
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KR101998571B1 (ko) 2013-05-21 2019-07-10 삼성전자주식회사 노즐 어셈블리 및 이를 구비하는 식기세척기
US9713413B2 (en) 2013-07-01 2017-07-25 Whirlpool Corporation Dishwasher for treating dishes
US9532699B2 (en) 2013-07-15 2017-01-03 Whirlpool Corporation Dishwasher with sprayer
ITTO20130614A1 (it) * 2013-07-19 2015-01-20 Premark Feg Llc Dispositivo di lavaggio e risciacquo combinato e macchina lavastoviglie includente tale dispositivo
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1731081A2 (fr) 2005-06-08 2006-12-13 Miele & Cie. KG Lave-vaisselle
DE102006012080A1 (de) * 2006-03-14 2007-09-27 Miele & Cie. Kg Spülmaschine

Also Published As

Publication number Publication date
US6325083B1 (en) 2001-12-04
EP0974302A2 (fr) 2000-01-26
DE19832982A1 (de) 2000-02-10
DE19832982C2 (de) 2000-08-03
DE59907510D1 (de) 2003-12-04
ATE252865T1 (de) 2003-11-15
EP0974302A3 (fr) 2000-03-29

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