EP2160969B1 - Improved dishwashing machine - Google Patents

Improved dishwashing machine Download PDF

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Publication number
EP2160969B1
EP2160969B1 EP09180119.1A EP09180119A EP2160969B1 EP 2160969 B1 EP2160969 B1 EP 2160969B1 EP 09180119 A EP09180119 A EP 09180119A EP 2160969 B1 EP2160969 B1 EP 2160969B1
Authority
EP
European Patent Office
Prior art keywords
dishwashing machine
door
inner door
area
machine according
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.)
Revoked
Application number
EP09180119.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2160969A1 (en
Inventor
Giuseppe Marchitto
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27639033&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2160969(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Indesit Co SpA filed Critical Indesit Co SpA
Publication of EP2160969A1 publication Critical patent/EP2160969A1/en
Application granted granted Critical
Publication of EP2160969B1 publication Critical patent/EP2160969B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4251Details of the casing
    • A47L15/4257Details of the loading door
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/44Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4409Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants by tipping containers or opening their lids, e.g. with the help of a programmer
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/50Racks ; Baskets

Definitions

  • the present invention relates to a dishwashing machine having an improved construction, in particular for household applications.
  • a dishwashing machine is known for example from EP-A-0,671,143 .
  • Such machines usually consist of a cabinet open on one side, generally on the front, by means of a tilting door hinged on its lower side, through which access to the wash tub is obtained.
  • the above cabinet houses all those elements and devices, which are known for containing the crockery to be washed and apt for implementing the washing cycles. These include the washing agents dispensers, the programmer device of the dishwasher and at times also a ventilation device, which are usually built in inside the door of the dishwashing machine.
  • the upper basket of the two baskets usually provided has overall dimensions surely smaller than the bottom basket. Practically, the upper basket has a smaller length and height extension compared to the dimensions that may be obtained should the upper volumes of the tub be fully utilized.
  • the door shell In these dishwashing machines the door shell, usually called inner door, is made with a depression to the outside of the tub and has appropriate guides for the bottom basket to slide on them and extracting it from the wash tub when the door is completely open, i.e. tilted to the outside. According to experience, it has been highlighted that above all these guides have a rather restricted height for ensuring a good sliding of the bottom basket during its extraction. Actually, the rollers guiding the bottom basket are often sliding out of the guides, which event occurs quite frequently when the basket is loaded with many pieces of crockery to be washed; this event is rather unpleasant for the user of the dishwashing machine. Moreover, there is also the risk that the crockery contained in it may become broken during a basket derailment from the guides.
  • the profile width of the inner door carrying the sealing gasket is restricted by the upper bulging of the inner door itself, which is provided for housing the programmer device and sometimes the washing agents dispenser. This bulging also reduces the space both vertically and in depth. Therefore, this width is not always big enough to avoid possible deformations and warping when utilizing an extruded gasket, which occur particularly in case of a profile with curving radiuses.
  • An extruded gasket has in fact a substantially consistent section, which cannot be changed in particularly difficult places, such as the curves in line with the inner door angles.
  • the dispensers usually built in inside the inner doors of the dishwashing machines have the opening of the compartment for the powder or solid washing agents generally assembled flush with the surface of the inner door facing inside the wash tub.
  • dispensing of the washing agents occurs with at least a portion of the latter left behind right on the inner door surface, which will then be dissolved by the water being sprayed there by the spraying elements.
  • this frame it is the main object of the present invention to provide a dishwashing machine fitted with an inner door depressed in optimal manner, in particular comprising at least a dispenser located favourably in the inner door for distribution of the washing agents.
  • Another object is to ensure a good guide of the bottom basket when being extracted from the tub, finally removing any derailment risk for the basket from its guides and possible damages to the crockery loaded on it.
  • Another object is to provide a sealing gasket for the dishwashing machine door, which is obtained effectively through a low-cost manufacturing process.
  • Figure 1 is representing a dishwashing machine according to the present invention, indicated globally with 1, which has substantially all and only those structural details being apt for understanding the invention as such. All further common structural and technical details known at the present state of the art for a good effective operation of a modern dishwashing machine have been omitted in the description herein and are not described for simplicity's sake.
  • the dishwasher 1 consists of a closed cabinet 2 having access on the front through a door 3, which is hinged on the bottom and can be completely tilted outside, being shown in its closed position in this representation.
  • the door 3 closes a wash tub 4 on the front, which is contained inside the cabinet 2.
  • the wash tub 4 is commonly housing a first basket 5 on the top and a second basket 6 on the bottom.
  • the front edges of the first basket 5 and second basket 6 are flush with a first area 7A and second area 7B, of an inner door 7 inside the door 3 of the dishwasher 1, respectively.
  • baskets 5, 6 have substantially an equal plan development, the same depth and a comparable height. Moreover, it can be noticed how the upper basket 5 has the top edge very near to the wash tub top 4, so as to fully utilize both the height space and depth space for housing the crockery to be washed.
  • Figure 2 is representing a schematic side view of the door 3 of the dishwasher 1, whereas Figure 3 shows from the inside a view of the detail of the inner door 7 related to the door 3. Above all in the latter, the particular form of the inner door 7 can be noticed, which is commonly assembled to the door 3 and nearly completely depressed to the outside.
  • both the above first area 7A and second area 7B can be identified, which have their utmost depression to the outside with respect to the tub 4 and are centrally separated by a third area 7C.
  • the detail of these areas 7A, 7B, 7C can be appreciated, in particular in Fig. 3 .
  • the third area 7C has a relief 7D in the middle, protruding from the profile of the inner door 7 and relevant depressed areas 7A and 7C, acting as an outline of a rectangular hole 8, wherein a dispensing device indicated with 9 and schematically represented in Figure 1 will engage.
  • the dispenser 9 will dispense the washing agents by gravity directly into the second bottom basket 6, getting very close to the second area 7B of the inner door 7.
  • the quantity of washing agents loaded in the dispenser is directly and completely utilized in the wash tub 4, reducing the risk of leaving a portion of it unused.
  • the timer - not shown - is a very small electronic timer; therefore, it can be housed even in the reduced space of the first area 7A.
  • the inner door 7 has a raised edge 7E following the side and upper profile of the inner door 7, which has a regular shape, with two different thickness.
  • two grooved guides 10 are obtained starting from the lower section. These guides extend well over half the whole length of the inner door 7 itself, they have a slight downwards slope for facilitating the bottom basket 6 sliding when the door 3 is tilted in its open position, and may even exceed even 12 mm height on their highest length. These guides 10 engage conveniently the common rollers of the second bottom basket 6, not shown for simplicity's sake.
  • Fig. 3 is clearly representing the trend of the edge 7E; as it can be noticed, this edge 7E maintains a regular trend and consistent width also when is curved approaching the edges of the inner door 7. Said feature ensures application on it of a particularly effective low-cost water sealing gasket for the wash tub 4, not illustrated in the figures for simplicity's sake. Such a gasket is obtained through extrusion of the material used for this common gasket.
  • the width of the edge 7E e.g. 20 mm compared to the usual 12 mm width of common inner doors, ensures an efficient sealing of the gasket also in the curving radiuses, i.e. in the corners of the inner door 7, where warping may occur.
  • the dispensing device 9 is located inside the door 3 of the dishwasher 1 in an area of the inner door 7 not involved by the dimensions of the baskets 5 and 6, in particular in a central position, ensuring a maximum depression of said inner door 7 in the areas 7A and 7B in line with the baskets 5 and 6, so as to maximize the utilization of the inner spaces of the wash tub 4 and improve dispensing of the washing agents contained in the dispenser 9 at the same time.
  • the inner door 7 has a depressed configuration along its perimeter, whereas an inner frame of said inner door perimeter is not depressed, i.e. in particular, the inner door 7 is formed to have two areas 7A and 7B particularly depressed to the outside with respect to the tub for the baskets 5 and 6 to reach an equal maximum depth extension.
  • the first basket 5 has an increased height compared to common upper baskets, substantially similar to the height of the second basket 6 for an improved loading of the crockery to be washed.
  • the dispenser device 9 can be arranged with the opening of the washing agents compartment in line with the main relief 7D of the inner door 7, thus contributing to a complete utilization of the dose being dispensed.
  • the depression of the inner door 7 in the upper area 7A provides an edge 7E of an increased width with respect to usual solutions, in particular in the curving radiuses, warranting optimal sealing of the gasket on said edge 7E.
  • Particularly advantageous is also the use of an extruded gasket of increased width compared to common art being applied to said edge 7E.
  • a further advantage is to warrant a safe easy extraction of the second basket 6 from the wash tub 4 of the dishwasher 1, being guided by the guides 10 with a regular configuration and increased height compared to the common solution used for the present state of the art.
  • the position of the hole 8 in the inner door 7 of the door 3 of the dishwashing machine 1 may differ from its central location, as well as the form and relief 7D surrounding the hole 8 itself.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
  • Adjustment And Processing Of Grains (AREA)
EP09180119.1A 2002-04-29 2003-04-28 Improved dishwashing machine Revoked EP2160969B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2002TO000360A ITTO20020360A1 (it) 2002-04-29 2002-04-29 Macchina lavastoviglie perfezionata.
EP03009554A EP1366704B1 (en) 2002-04-29 2003-04-28 Improved dishwashing machine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP03009554.1 Division 2003-04-28

Publications (2)

Publication Number Publication Date
EP2160969A1 EP2160969A1 (en) 2010-03-10
EP2160969B1 true EP2160969B1 (en) 2013-12-11

Family

ID=27639033

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09180119.1A Revoked EP2160969B1 (en) 2002-04-29 2003-04-28 Improved dishwashing machine
EP03009554A Expired - Lifetime EP1366704B1 (en) 2002-04-29 2003-04-28 Improved dishwashing machine

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03009554A Expired - Lifetime EP1366704B1 (en) 2002-04-29 2003-04-28 Improved dishwashing machine

Country Status (4)

Country Link
EP (2) EP2160969B1 (it)
AT (1) ATE454080T1 (it)
DE (1) DE60330828D1 (it)
IT (1) ITTO20020360A1 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004063284A1 (de) 2004-12-29 2006-07-13 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit einer Vorrichtung zur Auflösung von Reinigungsmittel
DE102005061994A1 (de) 2005-12-23 2007-07-19 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit verbesserter Anordnung der Zugabeeinrichtung in der Tür
US9848754B2 (en) 2012-11-19 2017-12-26 Whirlpool Corporation Dish rack with dispenser unit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6910220U (de) 1968-03-16 1969-08-21 Giovanni Borghi Geschirrspuelmaschine
US4834125A (en) * 1987-03-23 1989-05-30 Whirlpool Corporation Removable utensil basket for a dishwasher
US5261432A (en) * 1990-10-03 1993-11-16 Ro-Sa Micromeccanica S.N.C. Dishwashing machine with multidose dispenser of powder detergent
US5211188A (en) * 1992-01-03 1993-05-18 General Electric Company Dishwater additive dispensing apparatus
ATE146058T1 (de) * 1992-01-21 1996-12-15 Miele & Cie Geschirrspülmaschine oder waschmaschine mit einer dosiervorrichtung
ITPN940014A1 (it) * 1994-03-10 1995-09-10 Zanussi Elettrodomestici Lavastoviglie domestica
IT1293637B1 (it) * 1997-07-21 1999-03-08 Merloni Elettrodomestici Spa Macchina lavastoviglie con dispositivo dispensatore di agenti di lavaggio e relativo metodo di lavaggio.

Also Published As

Publication number Publication date
ITTO20020360A1 (it) 2003-10-29
EP1366704A3 (en) 2006-02-15
ITTO20020360A0 (it) 2002-04-29
EP1366704B1 (en) 2010-01-06
DE60330828D1 (de) 2010-02-25
EP2160969A1 (en) 2010-03-10
ATE454080T1 (de) 2010-01-15
EP1366704A2 (en) 2003-12-03

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