WO2018202363A1 - A dishwasher - Google Patents

A dishwasher Download PDF

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Publication number
WO2018202363A1
WO2018202363A1 PCT/EP2018/058161 EP2018058161W WO2018202363A1 WO 2018202363 A1 WO2018202363 A1 WO 2018202363A1 EP 2018058161 W EP2018058161 W EP 2018058161W WO 2018202363 A1 WO2018202363 A1 WO 2018202363A1
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WO
WIPO (PCT)
Prior art keywords
spray arm
spray
washing tub
dishwasher
water
Prior art date
Application number
PCT/EP2018/058161
Other languages
French (fr)
Inventor
Mehmet Taylan CELIK
Oguzhan KELES
Celal Vatansever
Omer Burak Coban
Can APAYDIN
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2018202363A1 publication Critical patent/WO2018202363A1/en

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    • 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
    • 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 present invention relates to a dishwasher with improved washing efficiency.
  • dishwashers generally comprise lower and upper baskets placed in the washing tub, in which the kitchenware to be washed can be placed.
  • the items are loaded on or removed from the basket by each basket being moved out of the washing tub.
  • a spray arm connected to the water line is provided below each basket, spraying water on the items placed on the basket by rotating about itself. Washing is performed by spraying water coming through a main supply line on the dishes by means of the spray arms.
  • Spraying members provided on the spray arm enable spraying of water on the dishes by a certain pressure. The dishes are thus cleaned. It is intended for the water sprayed from the spray arm to reach the largest area. Therefore, the spray arms may be of varying structures and shapes. Usually, spray arms located below the baskets are used, rotating about themselves on a central axis. Such spray arms form a circular washing area. However, water cannot reach the dishes placed on the corners of the quadrilateral baskets provided as per the structure of the dishwasher. Therefore, the dishes remaining on the corners cannot be cleaned.
  • EP2671494 discloses a dishwasher having a spray arm with increased scanning area.
  • the aim of the present invention is to realize a dishwasher with improved washing efficiency.
  • the dishwasher realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises a body, a washing tub provided on the body, in which washing is performed, a door enabling isolating the washing tub from the outer environment, and a plurality of spray arms provided on the washing tub, enabling spraying water on the items to be washed.
  • the dishwasher of the invention comprises a spray arm whose one end is fixed on the washing tub, and the other end is making a rotary motion. While one of the spray arms move, the other one is unmoved. By this means, the spray arms are avoided from obstructing each other when they move.
  • the dishwasher comprises a spray arm having a first position and a second position.
  • the first position is provided when the spray arm is parallel to the door or to the rear wall opposite of the door, and the second position is provided when the spray arm is parallel to the side walls.
  • the dishwasher comprises a first spray arm which is parallel to the door or to the rear wall of the washing tub.
  • a second spray arm is provided right across the first spray arm. The first spray arm and the second spray arm are parallel to each other when they are unmoved.
  • the dishwasher comprises a circulation pump enabling water to reach the washing tub, and a plurality of water channels enabling water to reach the spray arms.
  • the water channels extend from the circulation pump towards the first spray arm and the second spray arm.
  • the water channels extending to the first spray arm and to the second spray arm have different lengths.
  • the dishwasher comprises the water channels enabling the first spray arm and the second spray arm to be in alternate positions.
  • the second spray arm assumes the second position when the first spray arm is in the first position.
  • the dishwasher comprises a plurality of nozzles provided on the spray arms, enabling water to be sprayed to the washing tub.
  • the spray arms are enabled to displace between the first position and the second position.
  • the dishwasher comprises a control unit enabling the first spray arm and the second spray arm to be in alternate positions.
  • the spray arms are enabled to be in alternate positions at the same time by means of the control unit.
  • the dishwasher comprises a control unit enabling the first spray arm and the second spray arm to change positions.
  • the spray arms displace between the positions by means of the control unit.
  • Figure 1 is a perspective view of the dishwasher.
  • Figure 2 is a perspective view of the washing tub.
  • Figure 3 is a view of the washing tub from above.
  • Figure 4 is a view of the first position and the second position from above.
  • Figure 5 is a view of the circulation pump and the water channel from above.
  • the dishwasher (1) comprises a body (2), a washing tub (3) provided on the body (2), in which washing is performed, a door (4) enabling isolating the washing tub (3) from the outer environment, and a plurality of spray arms (5) provided on the base of the washing tub (T) spraying water on the items to be washed.
  • the items to be washed are placed in the washing tub (3). Pressurized water is sprayed on the items to be washed by means of the spray arms (5). The items are thus cleaned.
  • the dishwasher (1) of the invention comprises spray arms (5) with one end fixed on the washing tub (3), and the other end making a rotary motion, one of the arms being unmoved when the other one is moving.
  • the spray arms (5) are avoided from obstructing each other's movements.
  • One end of a spray arm (5) is fixed on the washing tub base (T) and the other end is making rotary motion in parallel to the washing tub base (T). By this means, water is enabled to reach all regions within the washing tub (3). ( Figure 3)
  • the dishwasher (1) comprises the spray arm (5) having a first position (A) in which it is parallel to the door (4) and the rear wall (D) of the washing tub (3), and a second position (B) in which it is parallel to the side walls (Y) of the washing tub (3).
  • a spray arm (5) assumes the first position (A) when it is parallel to the door (4) and the rear wall of the washing tub (3). Scanning takes place between the first position (A) and the second position (B). Beginning from the first position (A), the spray arm (5) assumes the second position (B) by making a rotary motion. ( Figure 4)
  • the dishwasher (1) comprises a first spray arm (5a) provided so as to be parallel to any one of the walls of the washing tub (3) or to the door (4), and by a second spray arm (5b) provided opposite to the first spray arm (5a).
  • the first spray arm (5a) and the second spray arm (5b) are disposed opposite from each other so as to be in parallel to each other.
  • the lengths of the spray arms (5) are equal. ( Figure 3)
  • the dishwasher (1) comprises a circulation pump (6) enabling water to reach the washing tub (3), and a plurality of water channels (7) in different lengths, extending from the circulation pump (6) to the first spray arm (5a) and to the second spray arm (5b) and enabling water to reach the spray arms (5).
  • Water reaches from the mains line into the washing tub (3) by means of the circulation pump (6).
  • the water arriving to the washing tub (3) is transmitted to the spray arms (5) by means of the water line.
  • the water lines extending to the first spray arm (5a) and to the second spray arm (5b) have different lengths. Phase difference is thus provided.
  • the spray arms (5) are transmitted water in alternating times. ( Figure 5)
  • the dishwasher (1) comprises the water channel (7) enabling the second spray arm (5b) or the first spray arm (5a) to be in the second position (B) when the first spray arm (5a) or the second spray arm (5b) is in the first position (A).
  • the water channels alternatingly transmitting water to the spray arms (5), the first spray arm (5a) and the second spray arm (5b) do not move simultaneously.
  • the dishwasher (1) comprises a plurality of nozzles (8) provided on the spray arms (5), enabling water to be sprayed from the spray arms (5) to the washing tub (3), and the first spray arm (5a) or the second spray arm (5b) displaceable between the first position (A) and the second position (B) by means of the nozzles (8).
  • Nozzles (8) opening from the spray arms (5) to the washing tub (3), are provided on the spray arms (5). Water is sprayed on the items to be washed by means of the nozzles (8).
  • the pressurized water sprayed from the nozzles (8) enables the spray arms (5) to move by creating a momentum effect.
  • the direction of a spray arm (5) can be changed by varying nozzle (8) directions.
  • the dishwasher (1) comprises a control unit (9) enabling the first spray arm (5a) and the second spray arm (5b) to be in alternate positions.
  • the spray arms (5) are enabled to move by means of the control unit (9). By this means, the first spray arm (5a) and the second spray arm (5b) never assume the same position.
  • the dishwasher (1) comprises a control unit (9) enabling the first spray arm (5a) and the second spray arm (5b) to change positions.
  • the control unit (9) enables the first spray arm (5a) and the second spray arm (5b) to displace between the first position (A) and the second position (B).
  • a dishwasher (1) with improved washing efficiency is realized with the invention.
  • water is enabled to reach all regions within the washing tub (3).
  • a plurality of spray arms (5) are provided in the washing tub (3). While one of the spray arms (5) move, the other one rests unmoved. By this means, the spray arms (5) are avoided from obstructing each other's movements.
  • One end of each spray arm (5) is fixed on base (T) of the washing tub, and the other end makes rotary motion. By this means, when both spray arms (5) complete their motion, they scan a quadrilateral area in the washing tub (3), enabling water to reach all items.

Abstract

The dishwasher (1) of the invention comprises a body (2), a washing tub (3) provided on the body (2), in which washing is performed, a door (4) enabling isolating the washing tub (3) from the outer environment, and a plurality of spray arms (5) provided on the base of the washing tub (T) spraying water on the items to be washed.

Description

A DISHWASHER
The present invention relates to a dishwasher with improved washing efficiency.
As known, dishwashers generally comprise lower and upper baskets placed in the washing tub, in which the kitchenware to be washed can be placed. The items are loaded on or removed from the basket by each basket being moved out of the washing tub. A spray arm connected to the water line is provided below each basket, spraying water on the items placed on the basket by rotating about itself. Washing is performed by spraying water coming through a main supply line on the dishes by means of the spray arms. Spraying members provided on the spray arm enable spraying of water on the dishes by a certain pressure. The dishes are thus cleaned. It is intended for the water sprayed from the spray arm to reach the largest area. Therefore, the spray arms may be of varying structures and shapes. Usually, spray arms located below the baskets are used, rotating about themselves on a central axis. Such spray arms form a circular washing area. However, water cannot reach the dishes placed on the corners of the quadrilateral baskets provided as per the structure of the dishwasher. Therefore, the dishes remaining on the corners cannot be cleaned.
State of the art European patent document no. EP2671494 discloses a dishwasher having a spray arm with increased scanning area.
The aim of the present invention is to realize a dishwasher with improved washing efficiency.
The dishwasher realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises a body, a washing tub provided on the body, in which washing is performed, a door enabling isolating the washing tub from the outer environment, and a plurality of spray arms provided on the washing tub, enabling spraying water on the items to be washed.
The dishwasher of the invention comprises a spray arm whose one end is fixed on the washing tub, and the other end is making a rotary motion. While one of the spray arms move, the other one is unmoved. By this means, the spray arms are avoided from obstructing each other when they move.
In an embodiment of the invention, the dishwasher comprises a spray arm having a first position and a second position. The first position is provided when the spray arm is parallel to the door or to the rear wall opposite of the door, and the second position is provided when the spray arm is parallel to the side walls.
In an embodiment of the invention, the dishwasher comprises a first spray arm which is parallel to the door or to the rear wall of the washing tub. A second spray arm is provided right across the first spray arm. The first spray arm and the second spray arm are parallel to each other when they are unmoved.
In an embodiment of the invention, the dishwasher comprises a circulation pump enabling water to reach the washing tub, and a plurality of water channels enabling water to reach the spray arms. The water channels extend from the circulation pump towards the first spray arm and the second spray arm. The water channels extending to the first spray arm and to the second spray arm have different lengths.
In an embodiment of the invention, the dishwasher comprises the water channels enabling the first spray arm and the second spray arm to be in alternate positions. By means of the water channels, the second spray arm assumes the second position when the first spray arm is in the first position. By this means, the spray arms are avoided from obstructing each other.
In an embodiment of the invention, the dishwasher comprises a plurality of nozzles provided on the spray arms, enabling water to be sprayed to the washing tub. By means of the nozzles, the spray arms are enabled to displace between the first position and the second position.
In an embodiment of the invention, the dishwasher comprises a control unit enabling the first spray arm and the second spray arm to be in alternate positions. The spray arms are enabled to be in alternate positions at the same time by means of the control unit.
In an embodiment of the invention, the dishwasher comprises a control unit enabling the first spray arm and the second spray arm to change positions. The spray arms displace between the positions by means of the control unit.
The dishwasher realized to achieve the aim of the present invention is illustrated in the accompanying drawings, wherein:
Figure 1 is a perspective view of the dishwasher.
Figure 2 is a perspective view of the washing tub.
Figure 3 is a view of the washing tub from above.
Figure 4 is a view of the first position and the second position from above.
Figure 5 is a view of the circulation pump and the water channel from above.
The elements in the figures are numbered individually and the correspondence of these numbers are given hereinafter.
  1. Dishwasher
  2. Body
  3. Washing tub
  4. Door
  5. Spray arm
5a- First spray arm
5b- Second spray arm
6. Circulation pump
7. Water channel
8. Nozzle
9. Control unit
A. First position
B. Second position
The dishwasher (1) comprises a body (2), a washing tub (3) provided on the body (2), in which washing is performed, a door (4) enabling isolating the washing tub (3) from the outer environment, and a plurality of spray arms (5) provided on the base of the washing tub (T) spraying water on the items to be washed. The items to be washed are placed in the washing tub (3). Pressurized water is sprayed on the items to be washed by means of the spray arms (5). The items are thus cleaned. (Figure 1 and Figure 2)
The dishwasher (1) of the invention comprises spray arms (5) with one end fixed on the washing tub (3), and the other end making a rotary motion, one of the arms being unmoved when the other one is moving. When one of the spray arms (5) is moving, the other one rests. By this means, the spray arms (5) are avoided from obstructing each other's movements. One end of a spray arm (5) is fixed on the washing tub base (T) and the other end is making rotary motion in parallel to the washing tub base (T). By this means, water is enabled to reach all regions within the washing tub (3). (Figure 3)
In an embodiment of the invention the dishwasher (1) comprises the spray arm (5) having a first position (A) in which it is parallel to the door (4) and the rear wall (D) of the washing tub (3), and a second position (B) in which it is parallel to the side walls (Y) of the washing tub (3). A spray arm (5) assumes the first position (A) when it is parallel to the door (4) and the rear wall of the washing tub (3). Scanning takes place between the first position (A) and the second position (B). Beginning from the first position (A), the spray arm (5) assumes the second position (B) by making a rotary motion. (Figure 4)
In an embodiment of the invention, the dishwasher (1) comprises a first spray arm (5a) provided so as to be parallel to any one of the walls of the washing tub (3) or to the door (4), and by a second spray arm (5b) provided opposite to the first spray arm (5a). The first spray arm (5a) and the second spray arm (5b) are disposed opposite from each other so as to be in parallel to each other. The lengths of the spray arms (5) are equal. (Figure 3)
In an embodiment of the invention, the dishwasher (1) comprises a circulation pump (6) enabling water to reach the washing tub (3), and a plurality of water channels (7) in different lengths, extending from the circulation pump (6) to the first spray arm (5a) and to the second spray arm (5b) and enabling water to reach the spray arms (5). Water reaches from the mains line into the washing tub (3) by means of the circulation pump (6). The water arriving to the washing tub (3) is transmitted to the spray arms (5) by means of the water line. The water lines extending to the first spray arm (5a) and to the second spray arm (5b) have different lengths. Phase difference is thus provided. The spray arms (5) are transmitted water in alternating times. (Figure 5)
In an embodiment of the invention, the dishwasher (1) comprises the water channel (7) enabling the second spray arm (5b) or the first spray arm (5a) to be in the second position (B) when the first spray arm (5a) or the second spray arm (5b) is in the first position (A). By means of the water channels alternatingly transmitting water to the spray arms (5), the first spray arm (5a) and the second spray arm (5b) do not move simultaneously.
In an embodiment of the invention, the dishwasher (1) comprises a plurality of nozzles (8) provided on the spray arms (5), enabling water to be sprayed from the spray arms (5) to the washing tub (3), and the first spray arm (5a) or the second spray arm (5b) displaceable between the first position (A) and the second position (B) by means of the nozzles (8). Nozzles (8) opening from the spray arms (5) to the washing tub (3), are provided on the spray arms (5). Water is sprayed on the items to be washed by means of the nozzles (8). The pressurized water sprayed from the nozzles (8) enables the spray arms (5) to move by creating a momentum effect. The direction of a spray arm (5) can be changed by varying nozzle (8) directions.
In an embodiment of the invention, the dishwasher (1) comprises a control unit (9) enabling the first spray arm (5a) and the second spray arm (5b) to be in alternate positions. The spray arms (5) are enabled to move by means of the control unit (9). By this means, the first spray arm (5a) and the second spray arm (5b) never assume the same position.
In an embodiment of the invention, the dishwasher (1) comprises a control unit (9) enabling the first spray arm (5a) and the second spray arm (5b) to change positions. The control unit (9) enables the first spray arm (5a) and the second spray arm (5b) to displace between the first position (A) and the second position (B).
A dishwasher (1) with improved washing efficiency is realized with the invention. By means of the spray arm (5) movements, water is enabled to reach all regions within the washing tub (3). A plurality of spray arms (5) are provided in the washing tub (3). While one of the spray arms (5) move, the other one rests unmoved. By this means, the spray arms (5) are avoided from obstructing each other's movements. One end of each spray arm (5) is fixed on base (T) of the washing tub, and the other end makes rotary motion. By this means, when both spray arms (5) complete their motion, they scan a quadrilateral area in the washing tub (3), enabling water to reach all items.

Claims (8)

  1. A dishwasher (1) comprising a body (2), a washing tub (3) provided on the body (2), in which washing is performed, a door (4) enabling isolating the washing tub (3) from the outer environment, and a plurality of spray arms (5) provided on the base of the washing tub (T) spraying water on the items to be washed, characterized by the spray arms (5) with one end fixed on the washing tub (3) and the other end making rotary motion, one of the spray arms being unmoved when the other one is moving.
  2. A dishwasher (1) according to claim 1, characterized by the spray arm (5) having a first position (A) in which it is parallel to the door (4) and the rear wall (D) of the washing tub (3), and a second position (B) in which it is parallel to the side walls (Y) of the washing tub (3).
  3. A dishwasher (1) according to claim 1 or claim 2, characterized by a first spray arm (5a) provided so as to be parallel to any one of the walls of the washing tub (3) or to the door (4), and by a second spray arm (5b) provided opposite to the first spray arm (5a).
  4. A dishwasher (1) according to any one of the preceding claims, characterized by a circulation pump (6) enabling water to reach the washing tub (3), and by a plurality of water channels (7) in different lengths, enabling water to reach the spray arms (5) and extending from the circulation pump (6) to the first spray arm (5a) and to the second spray arm (5b).
  5. A dishwasher (1) according to any one of the preceding claims, characterized by the water channel (7) enabling the second spray arm (5b) or the first spray arm (5a) to be in the second position (B) when the first spray arm (5a) or the second spray arm (5b) is in the first position (A).
  6. A dishwasher (1) according to any one of the preceding claims, characterized by a plurality of nozzles (8) provided on the spray arms (5), enabling water to be sprayed from the spray arms (5) to the washing tub (3), and by the first spray arm (5a) or the second spray arm (5b) displaceable between the first position (A) and the second position (B) by means of the nozzles (8).
  7. A dishwasher (1) according to any one of claim 1 or claim 3, characterized by a control unit (9) enabling the first spray arm (5a) and the second spray arm (5b) to be in alternate positions.
  8. A dishwasher (1) according to claim 7, characterized by the control unit (9) enabling the first spray arm (5a) or the second spray arm (5b) to change positions.
PCT/EP2018/058161 2017-05-03 2018-03-29 A dishwasher WO2018202363A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2017/06507 2017-05-03
TR2017/06507A TR201706507A2 (en) 2017-05-03 2017-05-03 A DISHWASHER

Publications (1)

Publication Number Publication Date
WO2018202363A1 true WO2018202363A1 (en) 2018-11-08

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ID=61837763

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WO (1) WO2018202363A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109907710A (en) * 2019-03-28 2019-06-21 广东洁诺生活电器有限公司 Gushing arm structure in a kind of dish-washing machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010032006A1 (en) * 2010-07-22 2012-01-26 Michael Heidan Dishwasher has perpendicular rotating axis rotating around rotating spraying arm and for discharging water jets with pressure water
DE102012104026A1 (en) * 2012-05-08 2013-11-14 Winterhalter Gastronom Gmbh Washing system for dishwashers, particularly commercial dishwashers, has two washing arms, which are arranged in washing chamber of dishwasher, where washing chamber has rectangular shape in cross-sectional plane
EP2671494A1 (en) 2012-06-05 2013-12-11 Samsung Electronics Co., Ltd Dish washing machine
EP2730208A1 (en) * 2012-11-12 2014-05-14 Samsung Electronics Co., Ltd Dish Washer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010032006A1 (en) * 2010-07-22 2012-01-26 Michael Heidan Dishwasher has perpendicular rotating axis rotating around rotating spraying arm and for discharging water jets with pressure water
DE102012104026A1 (en) * 2012-05-08 2013-11-14 Winterhalter Gastronom Gmbh Washing system for dishwashers, particularly commercial dishwashers, has two washing arms, which are arranged in washing chamber of dishwasher, where washing chamber has rectangular shape in cross-sectional plane
EP2671494A1 (en) 2012-06-05 2013-12-11 Samsung Electronics Co., Ltd Dish washing machine
EP2730208A1 (en) * 2012-11-12 2014-05-14 Samsung Electronics Co., Ltd Dish Washer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109907710A (en) * 2019-03-28 2019-06-21 广东洁诺生活电器有限公司 Gushing arm structure in a kind of dish-washing machine

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Publication number Publication date
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