EP2455531A1 - A drum surface for washing machines - Google Patents

A drum surface for washing machines Download PDF

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Publication number
EP2455531A1
EP2455531A1 EP11189211A EP11189211A EP2455531A1 EP 2455531 A1 EP2455531 A1 EP 2455531A1 EP 11189211 A EP11189211 A EP 11189211A EP 11189211 A EP11189211 A EP 11189211A EP 2455531 A1 EP2455531 A1 EP 2455531A1
Authority
EP
European Patent Office
Prior art keywords
drum
rings
drum surface
recessions
water discharge
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Withdrawn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
EP11189211A
Other languages
German (de)
French (fr)
Inventor
Bedir Inci
Ozgun Dosemeciler
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 Beyaz Esya Sanayi ve Ticaret AS
Original Assignee
Vestel Beyaz Esya 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 Beyaz Esya Sanayi ve Ticaret AS filed Critical Vestel Beyaz Esya Sanayi ve Ticaret AS
Publication of EP2455531A1 publication Critical patent/EP2455531A1/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums

Definitions

  • This invention relates to surface structures of rotating drums used in washing machines.
  • rotating drums which are used in washing machines and laundries to be washed are put therein, have a crucial role in the washing and spinning performance of the machine.
  • To enhance the washing and spinning performance of the machine to increase the contact area of the drum with the laundry, and to discharge more water during spinning, it is necessary to increase the total orifice area on the drum.
  • a number of engaged rings and a number of adjacent ring groups comprising the rings are provided on the drum surface.
  • the rings are in a form of nested successive elevations and recessions, and water discharge orifices are provided on the elevations and recessions.
  • the contact area of the drum surface with the laundries is increased. This is a factor for increasing the washing performance.
  • An advantage of the engaged rings, which are engaged as elevations and recessions, is that they ensure increasing the endurance of the drum surface. Therefore, a high number of water discharge orifices can be opened in desired portions of the rings. It is known that the increase of the water discharge orifices is also a factor for enhancing the spinning performance.
  • An aim of the invention is to improve washing performance by increasing contact area between the drum and laundry and to improve spinning performance by increasing total orifice area on the drum, by means of structures formed on drum surface.
  • Another aim of the invention is to form an easily producible, cost effective, less energy consuming washing machine drum with increased washing and spinning performance.
  • Embodiments of the washing machine drum surface are shown in annexed figures, wherein;
  • Figure 1 shows perspective view of an exemplary washing machine drum (1).
  • Figure 2-4 show structural details of the drum surface (2) therein and by this structure, increasing the contact area of the drum surface (2) with laundries and increasing the number of water discharge orifices (4) are aimed.
  • Figure 2-3 show details on the drum surface (2).
  • a number of engaged rings (3) and a number of adjacent ring groups (5) comprising the rings (3) are formed on the surface (2).
  • Rings (3) are made in a form of nested successive elevations (3a) and recessions (3b). Thanks to a number of elevations (3a) and recessions (3b), the area where the laundries contact with the drum surface (2) is increased. This is a factor for enhancing the washing performance.
  • the rings (3) which are shown in Figure 2-3 , are exemplary formed in round structure.
  • the rings (3) may be in elliptical or multilateral (the edges may be linear and/or curvilinear) structure.
  • the joints of the edges are rounded (for the protection of laundries).
  • the spinning performance is low since water extracted from the laundry does not completely leave the internal surface of the drum in flat surface drums.
  • This invention enables water, which is in the drum surface, to flow to the recessions (3b), to discharge from the orifices (4) and spinning performance is enhanced.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

In the washing machine drum (1) of the invention, a number of engaged rings (3) and a number of adjacent ring groups (5) comprising the rings (3) are provided on the drum surface (2). The rings (3) are in a form of nested successive elevations (3a) and recessions (3b), and water discharge orifices (4) are provided on the elevations (3a) and recessions (3b).

Description

    Technical Field
  • This invention relates to surface structures of rotating drums used in washing machines.
    • Prior Art
  • As it is known, rotating drums, which are used in washing machines and laundries to be washed are put therein, have a crucial role in the washing and spinning performance of the machine. In order to enhance the washing and spinning performance of the machine, to increase the contact area of the drum with the laundry, and to discharge more water during spinning, it is necessary to increase the total orifice area on the drum.
  • In the published patent application No JP2008212635 , which is an example of prior art about the technical field, it is seen that contact surface between the drum and the laundry is increased by pyramidally forming one after another on the drum surface (and by perforating the dented portions of these structures). In the published patent application No WO03054275 , which is another example of prior art about the technical field, it is disclosed that the drum surface is formed dome-shapedly. It is seen herein that the discharge orifices remain between the domes and the aim is to increase the drum endurance and water discharge capacity.
    • Brief Description of the Invention
  • In the washing machine drum of the invention, a number of engaged rings and a number of adjacent ring groups comprising the rings are provided on the drum surface. The rings are in a form of nested successive elevations and recessions, and water discharge orifices are provided on the elevations and recessions.
  • Thanks to a number of these elevations and recessions, the contact area of the drum surface with the laundries is increased. This is a factor for increasing the washing performance. An advantage of the engaged rings, which are engaged as elevations and recessions, is that they ensure increasing the endurance of the drum surface. Therefore, a high number of water discharge orifices can be opened in desired portions of the rings. It is known that the increase of the water discharge orifices is also a factor for enhancing the spinning performance.
    • Objectives of the Invention
  • An aim of the invention is to improve washing performance by increasing contact area between the drum and laundry and to improve spinning performance by increasing total orifice area on the drum, by means of structures formed on drum surface.
  • Another aim of the invention is to form an easily producible, cost effective, less energy consuming washing machine drum with increased washing and spinning performance.
    • Description of Drawings
  • Embodiments of the washing machine drum surface are shown in annexed figures, wherein;
    • Figure 1 is general perspective view of the drum.
    • Figure 2 is perspective view of a portion of the drum surface (in a flattened manner).
    • Figure 3 is top view of Figure 2.
    • Figure 4 is the view of A-A section in Figure 3.
  • The reference numbers as used in figures may possess the following meanings;
    Drum (1)
    Drum surface (2)
    Ring (3)
    Elevation (3a)
    Recession (3b)
    Water discharge orifice (4)
    Ring groups (5)
    • Description of the Invention
  • Figure 1 shows perspective view of an exemplary washing machine drum (1). Figure 2-4 show structural details of the drum surface (2) therein and by this structure, increasing the contact area of the drum surface (2) with laundries and increasing the number of water discharge orifices (4) are aimed.
  • Figure 2-3 show details on the drum surface (2). According to the figures, a number of engaged rings (3) and a number of adjacent ring groups (5) comprising the rings (3) are formed on the surface (2). Rings (3) are made in a form of nested successive elevations (3a) and recessions (3b). Thanks to a number of elevations (3a) and recessions (3b), the area where the laundries contact with the drum surface (2) is increased. This is a factor for enhancing the washing performance.
  • .An advantage of the engaged rings (3), which are engaged as elevations (3a) and recessions (3b), is that they ensure increasing the endurance of the drum surface (2). Therefore, a high number of water discharge orifices (4) can be opened in desired portions of the rings (3). It is known that increasing the water discharge orifices (4) is also a factor for enhancing the spinning performance. (As shown in Figure 4, water discharge orifices can be used in all surfaces of the rings (3) where elevation (3a) and recession (3b) remain.)
  • The rings (3), which are shown in Figure 2-3, are exemplary formed in round structure. Alternatively, the rings (3) may be in elliptical or multilateral (the edges may be linear and/or curvilinear) structure. In the ring (3) with multilateral structure, it is preferred that the joints of the edges are rounded (for the protection of laundries).
  • While the drum (1) is rotating during the washing, water therein partially remains between the recessions (3b) and water is moved upwardly to the upper portion of the laundries. Thus, quick and homogenous distribution of water to the laundries is ensured. This enables laundries to get wet in a short time and therefore, energy consumption of the machine is decreased.
  • During the spinning, the spinning performance is low since water extracted from the laundry does not completely leave the internal surface of the drum in flat surface drums. This invention enables water, which is in the drum surface, to flow to the recessions (3b), to discharge from the orifices (4) and spinning performance is enhanced.

Claims (7)

  1. A washing machine drum (1) characterized in that a number of engaged rings (3) and a number of adjacent ring groups (5) comprising the rings (3) are provided on the drum surface (2); the rings (3) are in a form of nested successive elevations (3a) and recessions (3b).
  2. A drum (1) according to claim 1 characterized in that water discharge orifices (4) are provided on the portions of the rings (3) where the elevation (3a)exists.
  3. A drum (1) according to claim 1 characterized in that water discharge orifices (4) are provided on the portions of the rings (3) where the recession (3b) exists.
  4. A drum (1) according to claim 1 characterized in that rings (3) are in rounded structure.
  5. A drum (1) according to claim 1 characterized in that rings (3) are in elliptical structure.
  6. A drum (1) according to claim 1 characterized in that rings (3) are in multilateral structure.
  7. A drum (1) according to claim 1 characterized in that the joints of the edges of the ring (3) with multilateral structure, are rounded.
EP11189211A 2010-11-23 2011-11-15 A drum surface for washing machines Withdrawn EP2455531A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2010/09624A TR201009624A2 (en) 2010-11-23 2010-11-23 A drum surface for washing machines.

Publications (1)

Publication Number Publication Date
EP2455531A1 true EP2455531A1 (en) 2012-05-23

Family

ID=44948079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11189211A Withdrawn EP2455531A1 (en) 2010-11-23 2011-11-15 A drum surface for washing machines

Country Status (2)

Country Link
EP (1) EP2455531A1 (en)
TR (1) TR201009624A2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012204560A1 (en) * 2012-03-22 2013-09-26 BSH Bosch und Siemens Hausgeräte GmbH Laundry drum with a structure pattern and laundry treatment machine with such a laundry drum
CN103726267A (en) * 2012-10-10 2014-04-16 三星电子株式会社 Washing machine
US20180355538A1 (en) * 2017-06-08 2018-12-13 Lg Electronics Inc. Drum of washing machine
EP3453795B1 (en) * 2016-07-18 2024-02-14 Samsung Electronics Co., Ltd. Washing machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0866161A2 (en) * 1997-03-22 1998-09-23 AEG Hausgeräte GmbH Washing machine drum
EP1028189A2 (en) * 1999-02-10 2000-08-16 BSH Bosch und Siemens Hausgeräte GmbH Laundry washing machine with a drum having a structured surface
WO2003054275A1 (en) 2001-12-20 2003-07-03 BSH Bosch und Siemens Hausgeräte GmbH Drum for a linen processing machine with a domed structure directed toward the inside of said drum
EP1925704A1 (en) * 2006-11-24 2008-05-28 Whirlpool Corporation Drum for a washing machine and washing machine provided with such drum
WO2008077394A2 (en) * 2006-12-22 2008-07-03 Dr. Mirtsch Gmbh Structured material web having a multi-dimensional structure, and method for the production thereof
JP2008212635A (en) 2007-02-28 2008-09-18 Samsung Electronics Co Ltd Washing machine which improves washing effect

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0866161A2 (en) * 1997-03-22 1998-09-23 AEG Hausgeräte GmbH Washing machine drum
EP1028189A2 (en) * 1999-02-10 2000-08-16 BSH Bosch und Siemens Hausgeräte GmbH Laundry washing machine with a drum having a structured surface
WO2003054275A1 (en) 2001-12-20 2003-07-03 BSH Bosch und Siemens Hausgeräte GmbH Drum for a linen processing machine with a domed structure directed toward the inside of said drum
EP1925704A1 (en) * 2006-11-24 2008-05-28 Whirlpool Corporation Drum for a washing machine and washing machine provided with such drum
WO2008077394A2 (en) * 2006-12-22 2008-07-03 Dr. Mirtsch Gmbh Structured material web having a multi-dimensional structure, and method for the production thereof
JP2008212635A (en) 2007-02-28 2008-09-18 Samsung Electronics Co Ltd Washing machine which improves washing effect

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012204560A1 (en) * 2012-03-22 2013-09-26 BSH Bosch und Siemens Hausgeräte GmbH Laundry drum with a structure pattern and laundry treatment machine with such a laundry drum
CN103726267A (en) * 2012-10-10 2014-04-16 三星电子株式会社 Washing machine
EP2719808A1 (en) * 2012-10-10 2014-04-16 Samsung Electronics Co., Ltd Washing machine
CN103726267B (en) * 2012-10-10 2017-12-26 三星电子株式会社 Washing machine
US9863079B2 (en) 2012-10-10 2018-01-09 Samsung Electronics Co., Ltd. Washing machine having a plurality of concentrically formed recessed portions on the tub
EP3453795B1 (en) * 2016-07-18 2024-02-14 Samsung Electronics Co., Ltd. Washing machine
US20180355538A1 (en) * 2017-06-08 2018-12-13 Lg Electronics Inc. Drum of washing machine
CN110832132A (en) * 2017-06-08 2020-02-21 Lg电子株式会社 Drum of clothes machine
AU2018281250B2 (en) * 2017-06-08 2020-11-26 Lg Electronics Inc. Drum of laundry machine
CN110832132B (en) * 2017-06-08 2021-10-22 Lg电子株式会社 Drum of clothes machine
EP3412823B1 (en) * 2017-06-08 2022-03-30 LG Electronics Inc. Drum of laundry machine
US11519119B2 (en) 2017-06-08 2022-12-06 Lg Electronics Inc. Drum of washing machine

Also Published As

Publication number Publication date
TR201009624A2 (en) 2011-01-21

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