EP3501366A1 - Geschirrspülmaschine und -verfahren - Google Patents

Geschirrspülmaschine und -verfahren Download PDF

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Publication number
EP3501366A1
EP3501366A1 EP17208903.9A EP17208903A EP3501366A1 EP 3501366 A1 EP3501366 A1 EP 3501366A1 EP 17208903 A EP17208903 A EP 17208903A EP 3501366 A1 EP3501366 A1 EP 3501366A1
Authority
EP
European Patent Office
Prior art keywords
rolling element
washed
dishwashing machine
item
rolling
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Withdrawn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
EP17208903.9A
Other languages
English (en)
French (fr)
Inventor
Erkan TUNAY
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.)
Vestel Elektronik Sanayi ve Ticaret AS
Original Assignee
Vestel Elektronik Sanayi ve Ticaret AS
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 Vestel Elektronik Sanayi ve Ticaret AS filed Critical Vestel Elektronik Sanayi ve Ticaret AS
Priority to EP17208903.9A priority Critical patent/EP3501366A1/de
Priority to TR2017/22799A priority patent/TR201722799A2/tr
Publication of EP3501366A1 publication Critical patent/EP3501366A1/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Withdrawn legal-status Critical Current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
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/20—Time, e.g. elapsed operating time

Definitions

  • the present disclosure relates to a dishwashing machine and a method of controlling a dishwashing machine.
  • Dishwashing machines are used for washing items such as crockery and cutlery.
  • a known dishwashing machine comprises a washing compartment for holding one or more items to be washed, and a washing mechanism for washing those items.
  • a user can select from a plurality of pre-defined washing cycles via a user interface on a front face of the dishwashing machine.
  • a dishwashing machine comprising: a controller; a first rolling element; and a second rolling element, the first rolling element and the second rolling element being spaced apart in a washing compartment of the dishwashing machine; the controller being configured to rotate the first rolling element and the second rolling element during a washing cycle so as to cause a movement of an item to be washed that is in contact with the first rolling element and the second rolling element.
  • Causing movement of an item to be washed during a washing cycle improves the quality of cleaning provided by the dishwashing machine. Such movement may allow hot water and detergent sprayed during a washing cycle to reach all parts of the items to be washed. In addition, the movements may allow for any dissolved solid waste to be easily removed from the surface of the items to be washed.
  • the controller is configured to rotate the first rolling element and the second rolling element in a same direction so as to cause rotational movement of the item to be washed.
  • the controller is configured to rotate the first rolling element and the second rolling element in the same direction for a predetermined period of time.
  • the controller is configured to rotate the first rolling element and the second rolling element in opposite directions so as to cause up and down movement of the item to be washed.
  • the controller is configured to rotate the first rolling element and the second rolling element in opposite directions for a predetermined period of time.
  • first and second rolling elements are arranged such that an axis of rotation of the first rolling element is parallel to an axis of rotation of the second rolling element.
  • the dishwashing machine comprises a support element for propping up an item to be washed whilst the item to be washed is in contact with the first rolling element and the second rolling element.
  • the first rolling element and the second rolling element are comprised in a rack for holding one or more items to be washed.
  • the dishwashing machine comprises a distance adjustment element, the distance adjustment element being movable to change a distance between the first rolling element and the second rolling element so as to accommodate different sized items to be washed.
  • the dishwashing machine comprises a plurality of pairs of first and second rolling elements.
  • a method of controlling a dishwashing machine comprising: rotating a first rolling element and a second rolling element during a washing cycle so as to cause a movement of an item to be washed that is in contact with the first rolling element and the second rolling element.
  • the method comprises rotating the first rolling element and the second rolling element in a same direction so as to cause rotational movement of the item to be washed.
  • the method comprises rotating the first rolling element and the second rolling element in a same direction for a predetermined period of time.
  • the method comprises rotating the first rolling element and the second rolling element in opposite directions so as to cause up and down movement of the item to be washed.
  • the method comprises rotating the first rolling element and the second rolling element in opposite directions for a predetermined period of time.
  • Dishwashing machines are used to automate the washing of items associated with food preparation and/or cooking and/or eating.
  • items include crockery such as plates, bowls, cups, mugs etc.
  • Such items may also include cutlery such as knives, forks, spoons, or indeed any other cooking or eating utensil.
  • Other items that may be washed include glassware, food containers etc.
  • FIG. 1 schematically shows an example of a dishwashing machine 100.
  • the dishwashing machine 100 comprises a main body 102, within which there is a washing compartment 104.
  • the washing compartment 104 comprises a lower portion 106 and an upper portion 108.
  • the lower portion 106 comprises a tray or rack 110 for holding items to be washed
  • the upper portion 108 comprises a tray or rack 112 for holding items to be washed.
  • the racks 110 and 112 can be moved in and out of the washing compartment 104 on roller assemblies.
  • a washing mechanism 123 comprises spray arm 124 in lower portion 106, and spray arm 126 in upper portion 108.
  • spray arm 126 is omitted.
  • Each spray arm comprises a series of holes or nozzles which can spray water upwardly towards the items to be washed 114, while the spray arms 124 and 126 rotate.
  • the dishwashing machine 100 further comprises water inlet 128 and water outlet 130 for enabling water to be fed to and taken away from the dishwashing machine respectively.
  • a heater element (not shown) is provided for heating water as necessary.
  • hot and cold water is drawn from a building's supply as required.
  • a power connection is schematically shown at 132, which enables the dishwashing machine to be connected to mains electrical power for powering the dishwashing machine.
  • a controller is schematically shown at 134 for controlling operations of the dishwashing machine.
  • the controller 134 can, for example, cause the dishwashing machine to operate according to one or more pre-determined washing cycles selected via a user interface 136.
  • the available washing cycles may differ from each other by temperature and/or duration, for example.
  • Via the user interface 136 a user may also be able to select whether the washing cycle is for a full or half load.
  • a display 138 is also provided which can display information to the user. This may include information such as confirming a user's washing cycle selection, as well as information such as time remaining of a washing cycle that is in progress.
  • a door of the dishwashing machine is schematically shown at 140.
  • the door 140 is connected to main body 120 via hinges 142 and 144.
  • the door is in an open position enabling access to washing compartment 104.
  • the door 140 may be moved to a closed position so that the washing compartment 104 is then substantially enclosed.
  • the door 140 may also include a receptacle for holding dishwashing detergent (e.g. a dishwashing machine cube) which can be released in to the dishwashing machine during a wash.
  • the receptacle for holding washing detergent may of course also be positioned elsewhere within the dishwashing machine.
  • the dishwashing machine may also include one or more further receptacles for containing dishwashing machine salt and/or rinse aid, for example.
  • a washing cycle of a dishwashing machine 100 includes three basic phases. First, the items to be washed 114 are wetted by the washing mechanism 123. Next, the items to be washed 114 are cleaned by the washing mechanism 123 spraying them with a mixture of hot water and a dishwashing detergent. Finally, the items to be washed 114 are rinsed with clean water and then air dried by the residual heat in the dishwashing machine or dried by a fan circulating hot air around the washing compartment 104.
  • the cleaning phase of the washing cycle of a dishwashing machine 100 may result in low or sub-optimal quality cleaning of the items to be washed 114.
  • a dishwashing machine 200 includes an apparatus for improving the cleaning of one or more items to be washed 214.
  • the items to be washed are plates 216, 218.
  • the apparatus includes a first rolling element 250 and a second rolling element 251.
  • the first rolling element 250 and the second rolling element are incorporated into a rack 210 for holding the items to be washed 214.
  • the rolling elements 250, 251 are spaced apart from one another to define a gap between them, which can (partially) accommodate an item to be washed when the item to be washed 214 is supported on the surface of the rolling elements 250, 251.
  • the first rolling element 250 and the second rolling element 251 are each components that can be rotated about their longitudinal axis during a washing cycle so as to cause a movement of an item to be washed 214 that is resting on the surface of, and is in contact with, the rolling element 250, 251.
  • each rolling element 250, 251 comprises a cylindrical shape. Other shapes are possible so long as the shape can be rotated to cause a movement of an item to be washed 214.
  • the example shown in Figure 2 includes two pairs of rolling elements 250, 251.
  • a single pair of rolling elements 250, 251 is provided.
  • the apparatus includes more pairs of rolling elements 250, 251.
  • both rolling elements 250 and 251 When the first rolling element 250 and the second rolling element 251 are rotated in the same direction, their rotation causes an item to be washed 214 that is supported on the surface of both rolling elements 250, 251 to also rotate (see Figure 3 ).
  • Rotating both rolling elements in the same direction may, for example, mean rotating both rolling elements 250 and 251 clockwise, or rotating both rolling elements 250 and 251 anti-clockwise.
  • both rolling elements 250 and 251 are rotated clockwise, this causes a corresponding anti-clockwise rotation of item to be washed 214 supported on the rolling elements.
  • both rolling elements 250 and 251 When both rolling elements 250 and 251 are rotated anti-clockwise, this causes a corresponding clockwise rotation of item to be washed 214 supported on the rolling elements (see Figure 3 for example).
  • first rolling element 250 and the second rolling element 251 are rotated in opposite directions (i.e. rotating one of the rolling elements in a clockwise direction and rotating the other rolling element in an anti-clockwise direction), towards one another, their rotation causes an item to be washed 214 that is supported on the surface of both rolling elements 250, 251 to be projected upwards and then fall down back downwards (see Figure 4 ).
  • This type of movement may be referred to as “vibrational” or “reciprocating" movement of item to be washed 214.
  • the item to be washed 214 is caused to move up and down vertically (or at least substantially vertically).
  • first rolling element 250 and the second rolling element 251 are arranged such that the axis of rotation of the first rolling element 250 (i.e. its longitudinal axis) is parallel to the axis of rotation of the second rolling element 250 (i.e. its longitudinal axis). This arrangement helps to improve the stability of an item to be washed 214 when the item is on the surface of the rolling elements 250, 251 and when the rolling elements 250, 251 are rotating.
  • the first rolling element 250 is the same size and shape as the second rolling element 251.
  • the rolling elements 250, 251 both comprise a cylindrical shape and have a circular cross-section.
  • both rolling elements 250, 251 have a same length and/or diameter.
  • the rolling elements 250, 251 may be shaped and sized differently to the examples described above, and the rolling elements 250 and 251 may be shaped and sized differently to one another, so long as the shape and size is suitable for causing, when rotated, a movement of an item to be washed 214 that is in contact with an outer surface of the rolling elements 250, 251.
  • each rolling element 250, 251 is supporting only one plate 216, 218.
  • each rolling element 250, 251 may be constructed and arranged to support a plurality of plates 216, 218 and/or other items to be washed 214.
  • the first rolling element 250 and the second rolling element 251 are both formed from a material that is relatively soft so that an item to be washed 214 is less likely to be damaged by the rolling elements 250, 251.
  • the rolling elements 250, 251 are also formed from a "non-slip" material having a high friction surface so that each rolling element 250, 251 has a high degree of "grip" in order to more effectively cause an item to be washed 214 to move.
  • the rolling elements 250, 251 may include an outer layer. The outer layer may be relatively soft and/or may be formed from a "non-slip" material.
  • the dishwashing machine 200 may include one or more motors (not shown) for driving the rotation of the rolling elements 250, 251.
  • the motors may be supplied with electrical power from a power connection 232. Activation of a motor begins rotation of a rolling element 250, 251. Deactivation of a motor ceases rotation of a rolling element 250, 251.
  • the one or more motors are configured to rotate each rolling elements 250, 251 in either a clockwise direction or an anti-clockwise direction, as will be described.
  • the dishwashing machine 200 may include one or more support elements for holding an item to be washed 214 (e.g. plate 218) in a substantially upright position whilst it is in contact with the first rolling element 250 and the second rolling element 251.
  • a first support element 252 and a second support element 253 are provided. Maintaining an item to be washed 214 in an upright position during a washing cycle allows for the item 214 to be more thoroughly cleaned during the washing cycle and allows for water to more easily drain off of the item 214.
  • the support elements 252 and 253 also prevent falling over of the item to be washed whilst being moved by the rolling elements 250 and 251.
  • each support element 252, 253 comprises a rod that is formed from a waterproof material.
  • the dishwashing machine 200 may include one or more distance adjustment elements 254 for adjusting a distance between the first rolling element 250 and the second rolling element 251. Adjusting a distance between the first and second rolling elements 250, 251 allows for the rolling elements 250, 251 to accommodate different sized plates 216, 218 or other items to be washed 214. If a distance between the rolling elements 250, 251 is increased then a larger item to be washed 214 can be accommodated. If a distance between the rolling elements 250, 251 is decreased then a smaller item to be washed 214 can be accommodated.
  • the distance adjustment elements 254 are arranged to be manually adjustable by a user. In another example, the distance adjustment elements 254 are arranged to be adjustable by a motor.
  • the controller 234 is configured to rotate the first rolling element 250 and the second rolling element 251 during a washing cycle so as to cause a movement of an item to be washed 214 that is in contact with the first rolling element 250 and the second rolling element 251.
  • the controller 234 rotates the rolling elements 250, 251 in opposite directions to one another, towards the item to be washed 214, the item to be washed 214 is caused to be projected upwards (relative to the dishwashing machine 200 in normal use). Once the item to be washed 214 is free from the rolling elements 250, 251, it begins to drop back down (as is shown in Figure 4 ). When the item to be washed 214 is back in contact with the rolling elements 250, 251, it is again projected upwards.
  • This type of movement may be referred to as "vibrational" movement or “reciprocating" movement.
  • upwards it is meant that the item to be washed is moved vertical or substantially vertical. It will be understood that in some examples this upwards movement may be relatively small, for example 5 millimetres or less. This is sufficient movement in order to help with the washing process, and a small enough distance so as to not cause damage to the items being washed.
  • Rotational and vibrational movement of an item to be washed 214 during a washing cycle improve the effectiveness of the washing cycle in removing dirt, food and other solids from the item to be washed.
  • the controller 234 is configured to rotate the rolling elements 250, 251 in the same direction for a predetermined period of time during the washing cycle. In some examples, the controller 234 is also configured to rotate the rolling elements 250, 251 in opposite directions for a predetermined period of time during the washing cycle. The controller 234 may be configured to rotate the rolling elements 250, 251 in the same direction for a predetermined period of time and then rotate the rolling elements in opposite directions for a predetermined period of time, or vice versa and/or alternately. The controller 234 may be configured to rotate the rolling elements 250, 251 only during a particular phase of a washing cycle, such as during the cleaning phase.
  • the controller 234 may be configured to activate one or more user selectable programs, sequences or patterns of rotating the rolling elements 250, 251. Each sequence includes, for a predetermined period of time, one or more of: rotating the rolling elements 250, 251 in the same direction, rotating the rolling elements 250, 251 in opposite directions and not rotating the rolling elements 250, 251.
  • the programs may correspond with the dishwashing machine's user selectable washing cycles.
  • the one or more user selectable programs or sequences may be stored as information on a data storage (not shown) included in the dishwashing machine 200, for example memory in the controller 234.
  • a program may be selectable by a user using a user interface 236 and a display 238.
  • the programs may be set by a user or they may be set by a manufacturer of the dishwashing machine 200.
  • the dishwashing machine 200 is deactivated.
  • a user wishes to wash one or more items to be washed 214 (in this example the plates 216, 218)
  • the user opens the door 240 and place the plates 216, 218 into the washing compartment 204 such that the plates 216, 218 are in contact with the first rolling element 250 and the second rolling element 251.
  • the plates are then supported in a substantially vertical orientation by the first and second support elements 252, 253.
  • the plates 216, 218 are therefore put into the arrangement that is shown in Figure 2 .
  • the user Before putting the plates 216, 218 into the washing compartment 204, the user first adjusts the distance adjustment elements 254 so that the space in between the rolling elements 250, 251 corresponds to the size of the plates 216, 218.
  • the user then uses the user interface 236 and the display 238 to select a particular washing cycle and to activate the dishwashing machine 200.
  • selecting a particular washing cycle also automatically selects a corresponding sequence of rotating the first and second rolling elements 250, 251.
  • the controller 234 then causes the dishwashing machine 200 to operate according to the selected washing cycle and the corresponding sequence of rotating the rolling elements 250, 251.
  • the selected washing cycle has three phases: a first wetting phase in which the plates 216, 218 are sprayed with hot water; a second cleaning phase in which the plates 216, 218 are sprayed with a mixture of hot water and a detergent; and a third rinsing/drying phase in which the plates 216, 218 are rinsed with clean hot water and then left to air dry in the hot washing compartment of the dishwashing machine 200.
  • the controller 234 controls the operation of these phases.
  • the controller 234 activates rotation of the rolling elements 250, 251 in a predetermined sequence during the washing cycle in order to improve the effectiveness of the cleaning of the plates 216, 218.
  • the controller 234 in accordance with the predetermined sequence corresponding to the selected washing cycle, only rotates the rolling elements 250, 251 during the cleaning phase of the washing cycle.
  • the rolling elements 250, 251 may be rotated during the other phases of the washing cycle.
  • the first rolling element 250 and the second rolling element 251 are not rotated and thus remain stationary.
  • the controller 234 alternates between rotating the first rolling element 250 and the second rolling element 251 in the same direction for a predetermined time period (e.g. 2 minutes) in order to cause rotational movement of the plates 216, 218, and rotating the first rolling element 250 and the second rolling element 251 in opposite directions, towards one another, for a predetermined time period (e.g. 2 minutes) in order to cause up and down movement of the plates 216, 218.
  • the rolling elements 250, 251 move the plates 216, 218 whilst the washing mechanism is spraying them with hot water and detergent.
  • Causing movement of items to be washed 214 during a washing cycle improves the quality of cleaning provided by the dishwashing machine 200. For example, by causing rotational movement, hot water and detergent sprayed during the washing cycle can reach all parts of the items to be washed 214. In addition, by causing vibrational up and down movement, dissolved solid waste is easily removed from the surface of the items to be washed 214.
  • the controller 234 in this example ceases rotation of the first and second rolling elements 250, 251 so that they are again stationary during the rinsing/drying phase.
  • the controller 234 alerts the user and deactivates the dishwashing machine 200.
  • processor or processing system or circuitry referred to herein may in practice be provided by a single chip or integrated circuit or plural chips or integrated circuits, optionally provided as a chipset, an application-specific integrated circuit (ASIC), field-programmable gate array (FPGA), digital signal processor (DSP), graphics processing units (GPUs), etc.
  • the chip or chips may comprise circuitry (as well as possibly firmware) for embodying at least one or more of a data processor or processors, a digital signal processor or processors, baseband circuitry and radio frequency circuitry, which are configurable so as to operate in accordance with the exemplary embodiments.
  • the exemplary embodiments may be implemented at least in part by computer software stored in (non-transitory) memory and executable by the processor, or by hardware, or by a combination of tangibly stored software and hardware (and tangibly stored firmware).
  • the invention also extends to computer programs, particularly computer programs on or in a carrier, adapted for putting the invention into practice.
  • the program may be in the form of non-transitory source code, object code, a code intermediate source and object code such as in partially compiled form, or in any other non-transitory form suitable for use in the implementation of processes according to the invention.
  • the carrier may be any entity or device capable of carrying the program.
  • the carrier may comprise a storage medium, such as a solid-state drive (SSD) or other semiconductor-based RAM; a ROM, for example a CD ROM or a semiconductor ROM; a magnetic recording medium, for example a floppy disk or hard disk; optical memory devices in general; etc.
  • SSD solid-state drive
  • ROM read-only memory
  • magnetic recording medium for example a floppy disk or hard disk
  • optical memory devices in general etc.

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  • Washing And Drying Of Tableware (AREA)
  • Transmission Devices (AREA)
EP17208903.9A 2017-12-20 2017-12-20 Geschirrspülmaschine und -verfahren Withdrawn EP3501366A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17208903.9A EP3501366A1 (de) 2017-12-20 2017-12-20 Geschirrspülmaschine und -verfahren
TR2017/22799A TR201722799A2 (tr) 2017-12-20 2017-12-29 Bi̇r bulaşik maki̇nesi̇ ve yöntemi̇

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17208903.9A EP3501366A1 (de) 2017-12-20 2017-12-20 Geschirrspülmaschine und -verfahren

Publications (1)

Publication Number Publication Date
EP3501366A1 true EP3501366A1 (de) 2019-06-26

Family

ID=60702362

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17208903.9A Withdrawn EP3501366A1 (de) 2017-12-20 2017-12-20 Geschirrspülmaschine und -verfahren

Country Status (2)

Country Link
EP (1) EP3501366A1 (de)
TR (1) TR201722799A2 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095502A (en) * 1931-03-06 1937-10-12 Hobart Mfg Co Cleaning and sterilizing method and apparatus
DE9212169U1 (de) * 1992-09-09 1992-11-26 Kao, Kuo-Kuen, Hsin-Chuan, Taipeh Transportförderer für Geschirrspüler
EP1671574A2 (de) * 2004-12-16 2006-06-21 Premark FEG L.L.C. Geschirrträger für Spülmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2095502A (en) * 1931-03-06 1937-10-12 Hobart Mfg Co Cleaning and sterilizing method and apparatus
DE9212169U1 (de) * 1992-09-09 1992-11-26 Kao, Kuo-Kuen, Hsin-Chuan, Taipeh Transportförderer für Geschirrspüler
EP1671574A2 (de) * 2004-12-16 2006-06-21 Premark FEG L.L.C. Geschirrträger für Spülmaschinen

Also Published As

Publication number Publication date
TR201722799A2 (tr) 2019-07-22

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