EP1306046A1 - Geschirrkorb aus Geschirrspülmaschine - Google Patents

Geschirrkorb aus Geschirrspülmaschine Download PDF

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Publication number
EP1306046A1
EP1306046A1 EP02019604A EP02019604A EP1306046A1 EP 1306046 A1 EP1306046 A1 EP 1306046A1 EP 02019604 A EP02019604 A EP 02019604A EP 02019604 A EP02019604 A EP 02019604A EP 1306046 A1 EP1306046 A1 EP 1306046A1
Authority
EP
European Patent Office
Prior art keywords
rack
plastic body
dishwashing machines
machines according
metal
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Withdrawn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
EP02019604A
Other languages
English (en)
French (fr)
Inventor
Mauro Cinello
Piero Durazzani
Daniele Favaro
Roberto Quattrin
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 Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Publication of EP1306046A1 publication Critical patent/EP1306046A1/de
Withdrawn legal-status Critical Current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
    • A47L15/42—Details
    • A47L15/50—Racks ; Baskets

Definitions

  • the present invention refers to a composite rack adapted to hold and support the washload items to be handled in a dishwashing machine, in particular of the kind intended for use in households.
  • Racks intended for use in dishwashing machines are largely known to be made in the majority of the cases with a grid-like structure formed by metal-wire rods that are so shaped and welded to each other as to define at least a substantially horizontal resting surface, or bottom wall, and substantially vertical side walls.
  • the metal wire rods used to form the rack are additionally coated, after a surface cleaning pre-treatment process, with a protective polymeric material.
  • Metal-wire racks have a number of drawbacks.
  • their architecture is undesirably rigid, i.e. limited by problems and requirements connected with the mechanical processing of the metal-wire, which must in fact be suitably bent and, possibly, deep-drawn in order to give the rack a suitable conformation in view of the basic needs that it is called to meet. It therefore proves practically impossible for a metal-wire rack of this kind to be made with a structure that is capable of duly complying with the modern ergonomic and aesthetical requirements that are becoming increasingly important for the users and consumers in general.
  • the racks could be made completely of plastic material, i.e. as an all-plastic construction.
  • plastic material i.e. as an all-plastic construction.
  • this would bring unacceptable problems of a technical nature with it.
  • the racks should be made with a basic plastic framework of an appropriately large thickness, which therefore would feature substantially small apertures for the wash water jets sprayed onto the washload items to adequately pass therethrough, under a resulting reduction of the washing performance an d effectiveness of the machine.
  • plastic unlike metal, does not favour the evaporation of residual water, so that the use of a dish rack of plastics would generally entail an inferior dish-drying effect.
  • Composite racks for dishwashing machines have also been proposed, which comprise a metal-wire framework on which there may be added, e.g. by snap-fitting, individual component parts of plastic material that may be shaped to relatively complex forms owing to technical, ergonomic and/or aesthetical reasons. Solutions of this kind are described for instance in GB-A-2 287 874 and EP-A-0 855 166.
  • the rack according to the present invention has a composite structure that is made partly of metal wire and partly of plastics and comprises support members intended to come into substantial contact with the washload items, such as dishes, pans, glasses and the like.
  • such support and contact members comprise substantially vertical prongs 7, or the like, shooting out from cross-members 8 and/or longitudinal members 9 that form a base surface.
  • the composite structure of the rack comprises a plurality of structural and/or functional parts, such as a frame 3 delimiting the rack all along the periphery thereof, an appropriately shaped gripping handle 4, pins 5 for supporting castors 6 or the like, by means of which the rack is capable of sliding with respect to side runners provided in the dishwashing machine in a generally known (and not shown) manner.
  • Said structural and/or functional parts provided in the rack may also comprise hinging and guiding means (not shown) adapted to enable the prongs 7 to be folded or thrown down, such as this is described for instance in GB-A ⁇ 2 287 874.
  • the above mentioned support and contact members 7-9 are made in the form of a metal-wire framework 1.
  • the metal wire used to such a purpose is particularly fit to ensure a sufficient extent of strength and rigidity in view of adequately sustaining the washload items, while on the other hand featuring just a small diameter, so that the entire framework 1 advantageously represents a substantially negligible impediment as far as the jets of washing and rinsing water are concerned, which in a generally known (and not shown) manner hit the rack when the dishwashing machine is in operation.
  • the metal wire of which said support and contact members 7-9 are made favours the evaporation of the hot water , i.e. an effect that is normally used in dishwashing machines for drying the dishes after washing.
  • the dishes can be dried in an optimum manner, in particular without any substantial scale formation at the contact points with the members 7-9.
  • the support and contact members 7-9 that are provided in the form of a metal-wire framework 1, whereas the remaining part of the rack is formed by a single complementary body 2 of plastic material comprising the afore cited structural and/or functional parts integrally therewith.
  • the metal-wire framework and said single-piece plastic body 2 are mechanically coupled with each other in the manner that shall be described in greater detail further on.
  • the framework 1 turns practically out to be solely formed by members 7-9 of metal wire having a relatively small size and elementary shapes all the way, so that, unlikely what normally happens in traditional racks made fully or partially of metal, these members are perfectly capable of being welded together, i.e. to each other, in a fully automated manner.
  • the resulting advantages in a production on an industrial scale are fully manifest.
  • the single-piece complementary plastic body 2 can in turn be easily manufactured by a moulding technique, separately from the framework 1, in such a manner as to incorporate the associated structural and/or functional parts, as this has already been said earlier in this description, with a maximum extent of freedom as far as ergonomic conformation, aesthetical appearance and/or colour is concerned.
  • these integrally provided parts will comprise the peripheral frame 3 and, preferably, also the pins 5 for the wheels 6, as well as one or more possible grips 4.
  • the rack also includes hinging and guiding means for folding or pulling down the prongs 7, as already mentioned earlier in this description, even such means can be provided integrally with said plastic body 2.
  • the composite rack for dishwashing machines according to the present invention can be advantageously manufactured on an industrial scale by fabricating the framework 1 on an automatic line that is adapted to most quickly complete the necessary welding and, possibly, drawing, "rilsanization” and plastic-coating steps, to which the metal parts 7-9 must be subjected, so as to obtain one or more substantially standardized structures.
  • the single-piece complementary body 2 can be manufactured by a plastic moulding technique (using for instance such a plastic material as syndiotactic polystyrene, polyoxymethylene copolymer or polymethylpentene) to any conformation and/or colour as actually desired.
  • a plastic moulding technique using for instance such a plastic material as syndiotactic polystyrene, polyoxymethylene copolymer or polymethylpentene
  • each standard structure of the metal-wire framework 1 can be quickly coupled mechanically, preferably by snap-fitting, to a corresponding single-piece plastic body 2, thereby most conveniently and quickly obtaining a complete rack having with an extreme overall versatility in terms of shape, appearance and/or colour according to the selected ones among the possible combinations of the various complementary parts 1 and 2. It can be readily appreciated that such a versatility would turn out as being unpracticably expensive to obtain in the case of composite racks of a traditional design, in which the various plastic parts are manufactured, i.e. moulded as individual pieces that are then applied individually on to a metal-wire base framework.
  • such an upper rack comprises cross-members 7 and longitudinal members 9 that are bent and shaped in a different manner, and may be adapted to be mounted in the dishwashing machine with the aid of height-adjustable side support means as schematically indicated at 10 in Figure 2.
  • the complementary plastic body 2 integrally comprises at least part of said height-adjustable side support means 10.
  • the complementary plastic body 2 preferably comprises in an integral manner also a part 11 of a water connection conduit that is usually provided in the dishwashing machine to supply water to the (generally known and not shown) water spray means that are associated to the same rack.
  • the metal framework 1 and the complementary plastic body 2 are preferably coupled with each other in a loosenable manner, so as to ensure the selective interchangeability thereof at any time, even in the field, with the aid of a plurality of quick-release coupling means distributed all along at least two opposite sides of the rack.
  • each one of such coupling means comprises an appropriately shaped receptacle 12 that is provided integrally in the plastic body 2 and is adapted to accommodate, in a substantially vertical direction, a correspondingly shaped respective head portion 13 of a corresponding metal wire of the framework 1 extending transversally with respect to the above mentioned opposite sides of the rack, which preferably form a front side 14 and a rear side 15 of the rack, respectively.
  • the head portion 13 of the metal wire is substantially formed in the shape of a reverse U lying on a plane that is substantially parallel to the opposite sides 14 and 15 of the rack, wherein an extremity 16 of said U is free, while the other extremity 17 thereof extends into the metal wire itself, which preferably forms a longitudinal member 9.
  • the possibilities for the dishes or, for the matter, the washload items in the rack to overturn or fall off are reduced to a minimum, even in the case that the rack is being handled in an abrupt manner as this occurs for instance when it is slidably pulled out/pushed in rapidly from/in the dishwashing machine.

Landscapes

  • Table Devices Or Equipment (AREA)
  • Washing And Drying Of Tableware (AREA)
EP02019604A 2001-10-29 2002-09-03 Geschirrkorb aus Geschirrspülmaschine Withdrawn EP1306046A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN20010077 ITPN20010077A1 (it) 2001-10-29 2001-10-29 Cesto composito per lavastoviglie
ITPN20010077 2001-10-29

Publications (1)

Publication Number Publication Date
EP1306046A1 true EP1306046A1 (de) 2003-05-02

Family

ID=11453311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02019604A Withdrawn EP1306046A1 (de) 2001-10-29 2002-09-03 Geschirrkorb aus Geschirrspülmaschine

Country Status (2)

Country Link
EP (1) EP1306046A1 (de)
IT (1) ITPN20010077A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1582136A1 (de) * 2004-03-29 2005-10-05 Electrolux Home Products Corporation N.V. Geschirrspülmaschine mit Warnanzeige vor zu heissem Geschirr
EP1477101A3 (de) * 2003-05-16 2006-05-24 Electrolux Home Products Corporation N.V. Geschirrkorb für den Einsatz in eine Geschirrspülmaschine
WO2006063900A1 (de) * 2004-12-17 2006-06-22 BSH Bosch und Siemens Hausgeräte GmbH Geschirrkorb für eine geschirrspülmaschine
ITTO20110741A1 (it) * 2011-08-05 2013-02-06 Indesit Co Spa Cestello per macchina lavastoviglie comprendente dei supporti basculanti e ripiegabili.
EP2554096A3 (de) * 2011-08-05 2013-08-28 Indesit Company S.p.A. Korb für Geschirrspülmaschinen mit schwenkbare Stützelemente und zumindest einem abnehmbaren Halteelement
US9113773B2 (en) 2013-12-12 2015-08-25 Whirlpool Corporation Dishwasher rack assembly with trim assembly
US9155447B2 (en) 2012-11-13 2015-10-13 Whirlpool Corporation Dish rack with integral hydraulic circuit
US10092162B2 (en) 2017-01-06 2018-10-09 Whirlpool Corporation Dishwasher base structure
US11986144B2 (en) 2022-03-15 2024-05-21 Whirlpool Corporation Dishwasher with tray

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2332737A1 (fr) * 1975-11-28 1977-06-24 Esswein Sa Panier a couverts pour machine a laver la vaisselle
EP0033483A2 (de) * 1980-02-05 1981-08-12 Bauknecht Hausgeräte GmbH Vorrichtung zum Verstellen der Höhenlage eines Geschirrkorbes in einem Haushalt-Geschirrspüler
WO2000072741A1 (en) * 1999-06-01 2000-12-07 Electrolux Zanussi S.P.A. Dishwashing machine, preferably for home use, with an improved architecture
DE19960810A1 (de) * 1999-12-16 2001-06-28 Bsh Bosch Siemens Hausgeraete Geschirrspülmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2332737A1 (fr) * 1975-11-28 1977-06-24 Esswein Sa Panier a couverts pour machine a laver la vaisselle
EP0033483A2 (de) * 1980-02-05 1981-08-12 Bauknecht Hausgeräte GmbH Vorrichtung zum Verstellen der Höhenlage eines Geschirrkorbes in einem Haushalt-Geschirrspüler
WO2000072741A1 (en) * 1999-06-01 2000-12-07 Electrolux Zanussi S.P.A. Dishwashing machine, preferably for home use, with an improved architecture
DE19960810A1 (de) * 1999-12-16 2001-06-28 Bsh Bosch Siemens Hausgeraete Geschirrspülmaschine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1477101A3 (de) * 2003-05-16 2006-05-24 Electrolux Home Products Corporation N.V. Geschirrkorb für den Einsatz in eine Geschirrspülmaschine
EP1582136A1 (de) * 2004-03-29 2005-10-05 Electrolux Home Products Corporation N.V. Geschirrspülmaschine mit Warnanzeige vor zu heissem Geschirr
WO2006063900A1 (de) * 2004-12-17 2006-06-22 BSH Bosch und Siemens Hausgeräte GmbH Geschirrkorb für eine geschirrspülmaschine
US8579120B2 (en) 2004-12-17 2013-11-12 Bsh Bosch Und Siemens Hausgeraete Gmbh Crockery basket for a dishwasher
ITTO20110741A1 (it) * 2011-08-05 2013-02-06 Indesit Co Spa Cestello per macchina lavastoviglie comprendente dei supporti basculanti e ripiegabili.
EP2554096A3 (de) * 2011-08-05 2013-08-28 Indesit Company S.p.A. Korb für Geschirrspülmaschinen mit schwenkbare Stützelemente und zumindest einem abnehmbaren Halteelement
US9155447B2 (en) 2012-11-13 2015-10-13 Whirlpool Corporation Dish rack with integral hydraulic circuit
US9113773B2 (en) 2013-12-12 2015-08-25 Whirlpool Corporation Dishwasher rack assembly with trim assembly
US10092162B2 (en) 2017-01-06 2018-10-09 Whirlpool Corporation Dishwasher base structure
US10285561B2 (en) 2017-01-06 2019-05-14 Whirlpool Corporation Dishwasher base structure
US11986144B2 (en) 2022-03-15 2024-05-21 Whirlpool Corporation Dishwasher with tray

Also Published As

Publication number Publication date
ITPN20010077A1 (it) 2003-04-29

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