AU2007327946A1 - Dishwasher - Google Patents

Dishwasher Download PDF

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Publication number
AU2007327946A1
AU2007327946A1 AU2007327946A AU2007327946A AU2007327946A1 AU 2007327946 A1 AU2007327946 A1 AU 2007327946A1 AU 2007327946 A AU2007327946 A AU 2007327946A AU 2007327946 A AU2007327946 A AU 2007327946A AU 2007327946 A1 AU2007327946 A1 AU 2007327946A1
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AU
Australia
Prior art keywords
tub
dishwasher
drawer
towards
filter receptacle
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.)
Granted
Application number
AU2007327946A
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AU2007327946B2 (en
Inventor
Arne Hagelin
Anders Tolf
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
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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 AU2007327946A1 publication Critical patent/AU2007327946A1/en
Application granted granted Critical
Publication of AU2007327946B2 publication Critical patent/AU2007327946B2/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A47L15/4246Details of the tub
    • 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
    • A47L15/0084Washing or rinsing machines for crockery or tableware of drawer-type

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Drawers Of Furniture (AREA)
  • Combinations Of Kitchen Furniture (AREA)

Abstract

The present invention deals with a dishwasher comprising a tub (2) for receiving at least one object that is to be washed, wherein the tub (2) has a tub bottom (7) that is downwardly inclined from a first portion of the tub (2) close to a first side (6) of the tub towards a second portion of the tub (2) close to a second side (5) of the tub, which second side is opposite to the first side, such that a distance (D) between the tub bottom (7) and a plane comprising an upper edge (11) of the tub increases towards the second portion of the tub. Thereby, it will be possible to receive large items in the tub, such as plates with a large diameter, without increasing the total height of the dishwasher. The invention is especially advantageous in drawer dishwashers, and when the tub bottom (7) is downwardly inclined from a front portion of the tub towards a rear portion of the tub.

Description

WO 2008/067895 PCT/EP2007/009802 1 DISHWASHER Technical Field The present disclosure relates to a dishwasher. More 5 particularly, the disclosure relates to the design of the bottom of a tub of a dishwasher. Background When designing dishwashers, there are space constraints 10 imposed by standards for kitchen appliances, cabinetry, etc. For example, a dishwasher cabinet may need to fit within a space that is 817.5-877.5 mm high, 595 mm wide and 570 mm deep. A dishwasher has a tub, in which items to be washed can be placed. In the tub, a dish rack is situated, in which the 15 items to be washed are placed. Drawer dishwashers are known from e.g. US 6,460,555B1 and US 6,447,081B1. A drawer dishwasher has at least one drawer, each drawer comprising a tub. In US 6,447,081 B1 a drawer dishwasher having two drawers arranged on top of each other in 20 a cabinet is described. In dishwashers in general, and especially in a two-drawer dishwasher such a described above, there are space constraints related to the height of each tub. For example, there may be a problem to fit in large items, such as large plates, e.g. 25 plates adapted for receiving a pizza, in such a dishwasher tub. Hence, an object of the invention is to maximize usage of the space within the dishwasher, to be able to receive large items in a tub of the dishwasher. 30 Summary The object of the invention is solved by the characterizing part of claim 1 in which a dishwasher is arranged such that a tub bottom is downwardly inclined from a WO 2008/067895 PCT/EP2007/009802 2 first portion of the tub close to a first side of the tub towards a second portion of the tub close to a second side of the tub, which second side is situated opposite to the first. side of the tub, such that a distance between the tub bottom 5 and a plane comprising an upper edge of the tub increases towards the second portion of the tub. By arranging the tub of the dishwasher with such an inclined tub bottom, the dishwasher allows for receiving large objects to be washed, such as plates with a large diameter, in 10 the second part of the tub, while providing a space for functional components of the dishwasher below the tub and still being able to keep the total height of the dishwasher at a limited height. According to an embodiment of the invention, the tub 15 bottom is downwardly inclined from a front part of the tub towards a rear part of the tub. Due to this inclination of the bottom of the tub, a rather large plinth area can be provided below the bottom of the front side of the dishwasher. Thereby, a kitchen can be equipped with uniform plinths for all 20 appliances of a kitchen, including the dishwasher, which is a demand from some kitchen manufacturers. Also, if the dishwasher is not equipped with such a uniform plinth, the plinth area provided by the invention would allow the user to stand close to the kitchen counter without his or her feet 25 striking against the dishwasher. According to an embodiment of the invention a filter receptacle is placed at the lowermost position of the tub bottom. By providing the tub with an inclined bottom and placing the filter receptacle at the lowermost portion of the 30 bottom, the inclination would, at operation of the dishwasher, direct water in the tub to the filter receptacle. Thereby, water will circulate quicker through a pump circulation system of the dishwasher, which would result in low water consumption.
WO 2008/067895 PCT/EP2007/009802 3 Also, by placing the filter receptacle at the lowermost position of the tub bottom, the risk of air getting into a washing pump connected to the filter receptacle via a pump inlet is reduced. 5 According to an embodiment of the invention, the filter receptacle is placed in a back corner of the tub. An advantage with this embodiment is that there will be more space for functional components below the tub compared to if the filter receptacle is placed in the middle of the tub, or in the 10 middle of the rear part of the tub. The invention is especially advantageous in a drawer dishwasher wherein the space constraints are normally stricter than for conventional dishwashers. 15 Brief Description of the Drawings Fig. 1 schematically illustrates, in cross section, a side view of a drawer dishwasher including two drawers. Fig. 2 schematically illustrates, in cross section, a side view of a dishwasher drawer according to an embodiment of 20 the invention. Fig. 3 schematically illustrates a cross section, in section I-I in figure 2, of the dishwasher drawer according to an embodiment of the invention. 25 Description of Embodiments Fig. 1 illustrates a drawer dishwasher 20, according to an embodiment of the invention. The dishwasher 20 has a front portion 23, which in a normal installation would be visible to the user, and a rear portion 24, which in the normal 30 installation would be non-visible to the user, e.g. since it faces a wall. The dishwasher 20 also has an upper portion 26, which normally faces the underside of a counter, under which the dishwasher is arranged. The dishwasher is typically positioned on a horizontal surface 25, such as a floor or a WO 2008/067895 PCT/EP2007/009802 4 shelf. This dishwasher 20 has a first drawer 21 and a second drawer 22 arranged on top of each other. However, the invention may be used for other configurations of dishwashers, such as conventional dishwashers or drawer dishwashers 5 comprising only one drawer, or comprising more than two drawers. Fig. 2 schematically illustrates a dishwasher drawer 1 according to an embodiment of the invention, which may be arranged in a drawer dishwasher 20. 10 The drawer 1 has a washing tub 2 for receiving plates, cutlery, glasses, bowls, etc. that are to be washed. The inner volume of the tub 2 is limited by a tub bottom 7, substantially vertical inner sides 5, 6 of the tub and a substantially horizontal plane 11 comprising an upper edge of 15 the tub. The horizontal plane 11 comprising the upper edge of the tub 2 is normally closed by a lid, which can be opened to allow for access to the tub from above. The tub bottom 7 is downwardly inclined from a front portion of the tub towards a rear portion of the tub. The front portion of the tub is 20 adjacent to a vertical front side 6 of the tub facing a front side of the dishwasher drawer 1, and the rear portion of the tub is adjacent to a vertical rear side 5 of the tub facing a rear side of the dishwasher drawer. Thanks to the inclined tub bottom 7, the height of the tub increases in a direction from 25 the front portion of the tub towards the rear portion of the tub. Due to this measure, large objects can be placed in the rear portion of the tub 2, without having to increase the total height of the tub. Below the tub bottom 7, there is an enclosure 3 formed 30 for receiving functional components 4 of the dishwasher, such as a heater, a pump, a softener, control electronics, valves etc. The enclosure 3 is defined by the tub bottom 7 and a drawer bottom 8 situated below the tub bottom 7.
WO 2008/067895 PCT/EP2007/009802 5 The tub also has a filter receptacle 10 arranged in the bottom 7 of the tub. The filter receptacle 10 is further connected to a washing pump (not shown) via a pump inlet (not shown). The filter receptacle 10 is preferably arranged in the 5 lowest part of the tub bottom 7, preferably close to the rear side 5 of the tub 2. Thereby, the inclination of the tub bottom 7 would, at operation of the dishwasher, direct water in the tub to the filter receptacle 10. The result would be a quick circulation of water through the pump circulation system 10 of the dishwasher, and low water consumption. The functional components 4 are arranged to allow for a low total height of the drawer. For this reason, the functional components placed in the enclosure 3 below the tub are essentially placed outside the lowest portion of the tub. 15 Thereby, the height of the enclosure 3 below the lowest portion of the tub can be very low. According to an embodiment of the invention, the tub bottom 7 has an inclination of about 3.5 to 100 relative to a horizontal plane, preferably about 40 to 70 relative to the 20 horizontal plane, and most preferably about 50 relative to the horizontal plane. 50 has been found to be an optimal value for the inclination. If the inclination is lower than 5*, some drops of water may remain on the tub bottom. Then a number of drops of water have to accumulate before the water drops will 25 flow into the filter receptacle. Also, if the inclination is higher than 50, there will be too less space in the tub where the tub bottom has its highest altitude. The dishwasher drawer 1 preferably has a rotatable sprinkler arm 13 for spraying water into the tub; water which 30 is circulated by a washing pump through a water circulation system from the tub via the filter receptacle 10 and the pump back to the tub. The sprinkler arm 13 may be arranged to rotate in a plane that is substantially parallel to the tub WO 2008/067895 PCT/EP2007/009802 6 bottom 7. According to one embodiment, the sprinkler arm 13 is rotatably connected to the tub bottom 7. In the tub there is also preferably situated a dish rack for receiving the items to be washed. The dish rack is 5 preferably situated close to the bottom of the tub and inclined with an inclination similar to the inclination of the tub bottom. Also, according to an embodiment of the invention, which is illustrated in figure 2, the tub 2 extends further outwards 10 from a rear portion of the drawer 1 than the enclosure 3, such that a plinth area 12 is created at the bottom of the front of the dishwasher drawer, outside the drawer. The user of the dishwasher may place his or her feet in the plinth area 12, such that he or she can take an ergonomically advantageous 15 position when e.g. placing dish in the dishwasher. When the tub bottom 7 is downwardly inclined from a front portion to a rear portion it will be possible to have a high relationship between the highest tub height D and the total height of the drawer, and anyhow be able to design the plinth 20 area 12 in an ergonomically advantageous way. This is achieved by inclining the tub bottom from a front portion of the tub and downwards towards a rear portion of the tub . Then it is possible to make the distance between the tub bottom at the front portion of the tub and the floor, when the drawer 1 25 stands on a floor, high enough for a pair of feet to conveniently fit under the front part of the dishwasher. According to an embodiment of the invention, a front portion of the tub bottom 7 and a front portion of the drawer bottom 8 are connected by a downwardly inclined portion 9 30 limiting the plinth area 12. The downwardly inclined portion may be curved for achieving a more ergonomically advantageous embodiment. The plinth area 12 typically has the following measures: The drawer bottom 8 is typically retracted from a cabinet front of the drawer dishwasher by about 140 mm; the WO 2008/067895 PCT/EP2007/009802 7 height from the floor to the bottom of the dishwasher, at the front portion of the drawer, is typically about 100 mm, including the distance from the drawer bottom 8 to the tub bottom 7 at the front of the tub. Thereby, the drawer can be 5 equipped with a uniform plinth, which is a demand from kitchen manufacturers for achieving a uniform shape for all appliances at a kitchen worktop. Figure 3 schematically illustrates a cross section in section I-I of a rear section of the dishwasher drawer in 10 figure 2, according to an embodiment of the invention. Figure 3 shows side portions 14, 15 of the tub, the tub top plane 11, the tub bottom 7 and the bottom 8 of the drawer. In this embodiment, the filter receptacle 10 is arranged in a lowermost portion of the tub bottom 7 in the rear portion of 15 the tub, and the surrounding tub bottom will be on a higher level than the portion in which the filter receptacle is arranged. As is shown in figure 3, the filter receptacle 10 and the lowermost portion are placed in a back corner of the tub 20 bottom 7. Thereby, there will be more space for the functional components 4 compared to if the filter receptacle 10 is placed in the middle of the tub 2, or in the middle of the rear portion of the tub. Alternatively, all components provided in the enclosure 25 3 may be mounted in an underside of the tub bottom 7. Hence, there need not be any drawer bottom 8, or actually, the drawer bottom would then be the tub bottom 7. The detailed description has been directed to a drawer dishwasher, although, as mentioned, the invention might also 30 be used for saving space in a conventional dishwasher. In the drawings and specification, there have been disclosed preferred embodiments and examples of the invention and, although specific terms are employed, they are used in a generic and descriptive sense only and not for the purpose of WO 2008/067895 PCT/EP2007/009802 8 limitation, the scope of the invention being set forth in the following claims.

Claims (11)

1. A dishwasher, having a tub (2) for receiving at least one object that is to be washed, the tub (2) having a tub 5 bottom (7) and substantially vertical sides (5, 6, 14, 15), characterized in that the tub bottom (7) is downwardly inclined from a first portion of the tub (2) close to a first side (6) of the tub towards a second portion of the tub (2) close to a second side (5) of the tub, which second side is 10 situated opposite to the first side of the tub, such that a distance (D) between the tub bottom (7) and a plane (11) comprising an upper edge of the tub increases towards the second portion of the tub. 15
2. The dishwasher as claimed in claim 1, wherein the dishwasher is a drawer dishwasher, and the tub (2) is situated in a drawer (1) of the drawer dishwasher.
3. The dishwasher as claimed in claim 1 or 2, wherein the 20 first side (6) of the tub (2) is a front side of the tub facing a front side of the dishwasher, and the second side (5) of the tub (2) is a rear side of the tub facing a rear side of the dishwasher, and wherein the tub bottom (7) is downwardly inclined from a front portion of the tub towards a rear 25 portion of the tub.
4. The dishwasher as claimed in any of claims 1-3, wherein the tub bottom (7) presents an inclination of about 3.5* to 100 relative to a horizontal plane, preferably about 30 40 to 70 relative to the horizontal plane, and most preferably about 50 relative to the horizontal plane.
5. The dishwasher as claimed in any of claims 1-4, wherein the tub bottom (7) presents an inclination that is WO 2008/067895 PCT/EP2007/009802 10 substantially continuous from the first portion of the tub (2) towards the second portion of the tub (2).
6. The dishwasher as claimed in any of claims 1-5, 5 further comprising a filter receptacle (10) arranged in a rear portion of the tub bottom (7).
7. The dishwasher as claimed in any of claims 1-6, wherein a filter receptacle (10) is arranged in a lowermost 10 portion of the tub bottom (7).
8. The dishwasher as claimed in claim 6 or 7, wherein the filter receptacle (10) is arranged in a corner of the tub bottom (7). 15
9. The dishwasher as claimed in any of the preceding claims, wherein a rotatable sprinkler arm (13) is arranged to rotate in a plane that is substantially parallel to the tub bottom (7). 20
10. The dishwasher as claimed in claim 2 and 3, further comprising: an enclosure (3) for receiving at least one functional component (4) of the dishwasher, 25 the enclosure (3) being defined at least partially by the tub bottom (7) and a drawer bottom (8), which is situated below the tub bottom (7), the tub bottom (7) and the drawer bottom (8) extending from a rear portion of the drawer (1) and outwards towards a 30 front portion of the drawer (1), and the tub bottom (7) extending further outwards towards the front portion of the drawer (1) than the drawer bottom (8). WO 2008/067895 PCT/EP2007/009802 11
11. The dishwasher as claimed in claim 10, wherein a retracted plinth area (12) is formed below a portion of the tub (2) and horizontally outside the enclosure (3), and wherein the plinth area (12) is limited by a downwardly 5 inclined portion (9), connecting the tub bottom (7) and the drawer bottom (8)
AU2007327946A 2006-12-06 2007-11-13 Dishwasher Ceased AU2007327946B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06025205.3 2006-12-06
EP06025205A EP1929922B1 (en) 2006-12-06 2006-12-06 Dishwasher
PCT/EP2007/009802 WO2008067895A1 (en) 2006-12-06 2007-11-13 Dishwasher

Publications (2)

Publication Number Publication Date
AU2007327946A1 true AU2007327946A1 (en) 2008-06-12
AU2007327946B2 AU2007327946B2 (en) 2011-11-17

Family

ID=37983528

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2007327946A Ceased AU2007327946B2 (en) 2006-12-06 2007-11-13 Dishwasher

Country Status (11)

Country Link
US (1) US20100051070A1 (en)
EP (1) EP1929922B1 (en)
KR (1) KR101527235B1 (en)
CN (1) CN101568289B (en)
AT (1) ATE479379T1 (en)
AU (1) AU2007327946B2 (en)
CA (1) CA2677161C (en)
DE (1) DE602006016623D1 (en)
PL (1) PL1929922T3 (en)
RU (1) RU2009125545A (en)
WO (1) WO2008067895A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106606339A (en) * 2017-02-13 2017-05-03 珠海格力电器股份有限公司 Dish washing machine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2416497A1 (en) * 1974-04-04 1975-10-16 Resulta Kg Compact dish washer with level switch - has blockage free water circulation through inclined filter sieve surface at base of wash chamber
JPH02147043A (en) * 1988-11-29 1990-06-06 Toshiba Corp Dishwasher
SE9001336L (en) * 1990-04-12 1991-10-13 Electrolux Ab DEVICE AT A DISHWASHER
JP2539289B2 (en) * 1990-11-30 1996-10-02 三菱電機株式会社 dishwasher
KR940009563B1 (en) * 1992-09-04 1994-10-15 대우전자주식회사 Tableware washing machine
NZ314155A (en) * 1997-01-30 1999-07-29 Fisher & Paykel Dishwasher detergent dispenser located in door recess, having open top and being flushed out by overhead nozzle
JP3129313B1 (en) 1999-08-16 2001-01-29 松下電器産業株式会社 Dishwasher
US7032604B2 (en) * 2002-05-28 2006-04-25 Maytag Corporation Three rack dishwasher
JP2004049443A (en) * 2002-07-18 2004-02-19 Mitsubishi Electric Corp Dishwasher
KR20040038309A (en) * 2002-10-31 2004-05-08 삼성전자주식회사 Dish washer
JP3974017B2 (en) * 2002-11-05 2007-09-12 松下電器産業株式会社 Dishwasher
JP4339574B2 (en) * 2002-11-05 2009-10-07 パナソニック株式会社 Dishwasher
JP3645884B2 (en) * 2002-11-05 2005-05-11 松下電器産業株式会社 Dishwasher
JP3851333B2 (en) * 2005-05-12 2006-11-29 三洋電機株式会社 dishwasher

Also Published As

Publication number Publication date
US20100051070A1 (en) 2010-03-04
CN101568289B (en) 2012-03-28
EP1929922A1 (en) 2008-06-11
PL1929922T3 (en) 2011-04-29
AU2007327946B2 (en) 2011-11-17
CA2677161C (en) 2015-06-30
ATE479379T1 (en) 2010-09-15
EP1929922B1 (en) 2010-09-01
CN101568289A (en) 2009-10-28
KR20090097152A (en) 2009-09-15
CA2677161A1 (en) 2008-06-12
DE602006016623D1 (en) 2010-10-14
KR101527235B1 (en) 2015-06-08
WO2008067895A1 (en) 2008-06-12
RU2009125545A (en) 2011-01-20

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