US20090211313A1 - Water-circulating household appliance with an embossed washing drum - Google Patents

Water-circulating household appliance with an embossed washing drum Download PDF

Info

Publication number
US20090211313A1
US20090211313A1 US11/921,675 US92167506A US2009211313A1 US 20090211313 A1 US20090211313 A1 US 20090211313A1 US 92167506 A US92167506 A US 92167506A US 2009211313 A1 US2009211313 A1 US 2009211313A1
Authority
US
United States
Prior art keywords
drum
protrusions
casing
embossed
axis
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.)
Abandoned
Application number
US11/921,675
Other languages
English (en)
Inventor
Marcus Exler
Johannes Geyer
Reinhard Heyder
Alfred Nitsche
Patrick Schüler
Stephan Sommer
Wilfried Wildung
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Assigned to BSH BOSCH UND SIEMENS HAUSGERAETE GMBH reassignment BSH BOSCH UND SIEMENS HAUSGERAETE GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHUELER, PATRICK, EXLER, MARCUS, NITSCHE, ALFRED, GEYER, JOHANNES, WILDUNG, WILFRIED, SOMMER, STEPHAN, HEYDER, REINHARD
Publication of US20090211313A1 publication Critical patent/US20090211313A1/en
Abandoned 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
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis

Definitions

  • the invention relates to a water-circulating household appliance, for example a washing machine, washer-drier or clothes drier, having a rotatably mounted washing drum with a drum casing and at least one drum cover face, with the washing drum being embossed and the edges of the embossed sections being ellipsoidal.
  • the invention also relates to a washing drum for a water-circulating household appliance with a drum casing and at least one drum cover face, with the washing drum being embossed.
  • EP 0 935 687 B1 discloses a washing machine or a washer-drier with a rotatably mounted drum which is arranged horizontally or inclined in a lye container.
  • the casing of the drum comprises an arched structure which consists of polygons and is directed toward the interior of the drum. Holes are arranged in the corners of the edge contour of the arched structure.
  • DE 197 31 666 A1 discloses a washing drum for an electrical clothes drier.
  • the drum casing is embossed in a wavelike fashion.
  • DE 196 03 710 A1 discloses a water-circulating household appliance, e.g. a washer-drier or a drum-type washing machine, comprising a lye container and a washing drum which is rotatably arranged in the lye container, with the casing of the lye container being embossed.
  • the embossed sections may be round, oval or polygonal. Round embossed sections exhibit a slightly arched form.
  • DE 44 45 669 A1 discloses a washing drum for a washing machine, which has a plurality of holes across a cylindrical casing in order to allow the passage of working fluid. Trough-shaped indentations and/or elevations are provided between these holes.
  • DE 101 45 079 C1 discloses a drum for a clothes drier having a perforated drum base as well as a loading opening and a drum casing connected to the drum base. Embossed sections in the form of an arched structure embodied in the manner of a honeycomb are present on the drum cover face, the honeycomb surfaces of which are directed toward the exterior of the drum.
  • the object of the present invention is therefore to provide a water-circulating household appliance and a washing drum with improved washing and drying characteristics.
  • an inventive water-circulating household appliance e.g. washing machine, washer-drier or clothes drier, having a rotatably mounted washing drum with a drum casing and at least one drum cover face, with the washing drum being embossed
  • the edges of the embossed sections are ellipsoidal.
  • Flow-efficient channel-like cavities form as a result in the non-embossed section of the washing drum.
  • a fluid, which flows in these channel-like cavities between the embossed sections and the clothes resting thereupon, thus has fewer flow losses as a result of the ellipsoidal shape.
  • the embossed sections are preferably applied to the drum casing.
  • the clothes rest predominantly on the drum casing, so that application of the embossed sections is particularly expedient here.
  • embossed sections are directed inward in relation to the washing drum.
  • the embossed sections feature a different size and/or a different shape, i.e. such that the ellipses forming the basis of the embossed section have different half-axes a, b. A further adjustment to different ratios can be effected as a result.
  • the large half-axis a has a length of 5 to 15 mm and the small half-axis b a length of 2.5 to 10 mm.
  • the contour of the cross-section of the embossed sections in particular parallel to the respective axis of the ellipse, is curved or has one or a number of angles, e.g. triangular or rectangular.
  • the shapes of the embossed sections are thus different and can thus be adjusted to different conditions.
  • the curvature in cross-section is irregular and/or the incline of the embossed sections in cross-section is different.
  • the depth of the embossed sections is 0.5 to 5 mm.
  • the embossed sections are arranged at a minimal distance of 3 to 10 mm for instance from one another. As a result of a minimal distance between the embossed sections, channel-like cavities form, into which detergent and drying air can flow effectively.
  • the embossed sections are expediently arranged offset from one another in order to be able to apply as many embossed sections per unit of area as possible. More embossed sections per unit of area strengthen the positive effects of the embossed sections in a washing drum.
  • a half-axis a, b, of the ellipse forming the basis of the embossed section is aligned in parallel, at right angles or inclined at a defined angle a toward the drum axis for the embossed sections on the drum cover.
  • flow holes are formed in the drum casing, in the case of a washing machine or a washer-drier.
  • flow holes are arranged between the ellipsoidal embossed sections or in the ellipsoidal embossed sections.
  • the flow holes preferably have a diameter of 1 to 4 mm and the distance between the flow holes is between 2 and 10 mm.
  • embossed sections are attached to sub-areas of the drum casing.
  • the embossed sections are discontinued and/or not formed at an agitator rib. This ensures that the agitator rib is continuously secured to the drum casing and no dirt or fluff can get into the spaces between the embossed section and the agitator rib.
  • the washing drum is embossed, with the edges of the embossed sections being ellipsoidal.
  • FIG. 1 shows a perspective view of a washing machine according to the invention
  • FIG. 2 shows a perspective view of a washing drum according to the invention
  • FIG. 3 shows a plan view onto a flat projection of a drum casing
  • FIG. 4 shows a plan view onto a flat projection of a drum casing in a further, embodiment
  • FIG. 5 shows a plan view onto a flat projection of the drum casing in a supplementary embodiment
  • FIG. 6 shows a view of an ellipse forming the basis of the embossed section
  • FIG. 7 shows a cross-section of a washing drum according to the invention having embossed sections with a square cross-section and
  • FIG. 8 shows a cross-section of a washing drum according to the invention having embossed sections with an arched cross-section.
  • FIG. 1 shows a washing machine 1 according to the invention with an inventive washing drum 6 .
  • the washing drum 6 according to the invention has a drum cover face 3 and a drum casing 2 .
  • the drum casing 2 is embossed 4 .
  • the edges of the embossed sections i.e. the transition between the embossed section 4 and non-embossed section of the washing drum 6 , in particular the transition between the embossed section 4 and the non-embossed section of the drum casing 2 , is ellipsoidal.
  • Agitator ribs 5 are still also preferably present on the drum casing 2 .
  • the embossed sections 4 are directed inward toward the washing drum 6 .
  • the embossed sections 4 can however also be directed outward.
  • the shape of the edge of the embossed section 4 does not need to correspond exactly to that of an ellipse in the mathematical sense.
  • the ellipsoidal embossed sections 4 can also have forms which deviate slightly from an ellipse in the mathematical sense.
  • the embossed sections 4 are generally applied to the drum casing 2 both in the case of the washing machine 1 described in the exemplary embodiment or a washer-drier (not shown) as well as in the case of a washer-drier (not shown).
  • the embossed sections 4 can also have a different size and/or a different shape.
  • Embossed sections 4 having a different shape are embossed sections in which the ellipses forming the basis of the embossed section have different half-axes a and b ( FIG. 6 ).
  • the large half-axis a normally exhibits a length in the range of approximately 5 to 15 mm and the small half-axis b generally exhibits a length in the range of 2.5 to 10 mm.
  • the cross-section of the embossed sections 4 can be embodied in an arched fashion or can have one or a number of angles.
  • FIG. 7 shows a cross-section with a rectangular cross-section and FIG.
  • FIG. 8 shows an embossed section with an arched cross-section.
  • a dome-shaped embossed section 4 results in the case of an arched cross-section of the embossed sections 4 .
  • the cross-section of the ellipsoidal embossed sections 4 has one or a number of angles, e.g. with a triangular or rectangular cross-section of the embossed sections, a cuboid-type form of the embossed section 4 results for instance.
  • the curvature radius and/or the incline of the cross-section of the embossed section may be different.
  • a relatively large incline toward the drum casing 2 may be present for instance and on the other hand this incline may decrease slowly in the direction of the center of the ellipsoidal embossed section 4 .
  • the depth of the embossed sections lies within a range of approximately 0.1 to 10 mm, preferably in a range of 0.5 to 5 mm.
  • the embossed sections 4 are preferably arranged at a minimal distance from one another, 1 mm for instance.
  • the water is advantageously able to flow unhindered between the embossed sections 4 during the washing or rinsing process, e.g. to the flow holes 9 , which are present in washing machines 1 or washer-driers.
  • an air cushion forms as a result of the intermediate spaces, onto which air cushion the clothes drop in a cushioned fashion, which serves to protect the clothes and also reduces the amount of noise.
  • the ellipsoidal embossed sections are offset, as shown accordingly in FIGS. 3 to 5 . The offset allows more embossed sections 4 to be applied to the drum casing 3 per unit of area, thereby increasing the overall effect of the embossed sections 4 .
  • FIG. 2 shows an inventive washing drum 6 with a drum casing 2 and a drum cover face 3 .
  • the washing drum 6 rotates about a drum axis 7 in the direction of rotation 8 .
  • the embossed sections 4 can also be aligned differently on the drum casing 2 .
  • FIGS. 3 , 4 and 5 show a plan view of the flat projections of the drum casing 2 .
  • the embossed sections 4 are each arranged offset in these figures.
  • FIG. 3 shows the large half-axis a of the ellipse forming the basis of the embossed section 4 at right angles to the drum axis 7 and parallel to the direction of rotation 8 .
  • the arrangement is shown the other way round in FIG. 4 .
  • the large half-axis a of the ellipse which forms the basis of the embossed sections 4 , is at a right angle to the direction of rotation 8 and parallel to the drum axis 7 .
  • FIG. 3 shows the large half-axis a of the ellipse, which forms the basis of the embossed sections 4 , is at a right angle to the direction of rotation 8 and parallel to the drum axis 7 .
  • FIGS. 3 , 4 and 5 show the cross-section 10 of the embossed sections 4 in the direction of the large half-axis a and the cross-section 11 of the embossed sections 4 in the direction of the small half-axis b.
  • a washing machine 1 or a washer-drier is described.
  • the flow holes 9 which are generally present here are therefore also shown in FIGS. 3 to 5 .
  • the flow holes 9 are preferably positioned between the embossed sections 4 or even in the embossed sections 4 (not shown).
  • the flow holes 9 have a diameter of generally 1 to 4 mm and are arranged at a distance of approximately 2 to 20 mm from one another.
  • the embossed sections are advantageous in the case of a washing drum in a water-circulating household appliance in that the washing drum is reinforced by them. It is hereby possible to save on material and to achieve a noise reduction as a result of the increased rigidity of the washing drum 6 . As a result of the surface structure produced by the embossed sections, scratches or other slight damage to the surface inside the washing drum are barely visible, thereby rendering the washing drum less optically sensitive in an inventive water-circulating household appliance.
  • Flow channels form between the non-embossed section of the drum casing, because clothes rest on the ellipsoidal embossed sections.
  • the water is able to flow unhindered to the flow holes during the washing process. This also applies to rinsing. Furthermore, the water supply is naturally also improved as a result.
  • the embossed sections massage the clothes and in doing so enhance the washing process.
  • the increased surface pressure due to the ellipsoidal embossed sections means that the clothes are agitated better by the washing drum, thereby improving the overall washing process.
  • An air flow forms between the embossed sections during the drying process, when used in an inventive clothes drier or washer-drier, so that the drying performance can be improved and enhanced as a result.
  • the air cushion present between the embossed sections allows the clothes to drop more gently. The noise produced is thus reduced and the clothes are protected as a result of the cushioned impact on the drum casing. Furthermore, some of the moisture in the clothes can diffuse into this air space and/or the air cushion in this channel-like cavity between the clothes and the embossed sections. Drying performance is hereby enhanced. The supplied drying air can thus absorb the moisture more easily, thereby enhancing drying performance and reducing energy consumption.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
US11/921,675 2005-06-06 2006-04-13 Water-circulating household appliance with an embossed washing drum Abandoned US20090211313A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005026175.2 2005-06-06
DE102005026175A DE102005026175A1 (de) 2005-06-06 2005-06-06 Wasserführendes Haushaltsgerät mit einer Prägungen aufweisenden Wäschetrommel
PCT/EP2006/061591 WO2006131416A1 (de) 2005-06-06 2006-04-13 Wasserführendes haushaltsgerät mit einer prägungen aufweisenden wäschetrommel

Publications (1)

Publication Number Publication Date
US20090211313A1 true US20090211313A1 (en) 2009-08-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US11/921,675 Abandoned US20090211313A1 (en) 2005-06-06 2006-04-13 Water-circulating household appliance with an embossed washing drum

Country Status (7)

Country Link
US (1) US20090211313A1 (ru)
EP (1) EP1902170A1 (ru)
KR (1) KR100892544B1 (ru)
CN (1) CN101189382A (ru)
DE (1) DE102005026175A1 (ru)
RU (1) RU2402651C2 (ru)
WO (1) WO2006131416A1 (ru)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110048080A1 (en) * 2008-01-16 2011-03-03 BSH Bosch und Siemens Hausgeräte GmbH Drum for a laundry treatment machine
US20110088276A1 (en) * 2005-12-28 2011-04-21 Bsh Bosch Und Siemens Hausgerate Gmbh Laundry Drum
USD748356S1 (en) * 2013-07-16 2016-01-26 Whirlpool Corporation Container for a clothes washing machine
USD761501S1 (en) * 2013-09-27 2016-07-12 Whirlpool Corporation Container for clothes washing machine
USD772503S1 (en) * 2015-04-29 2016-11-22 Samsung Electronics Co., Ltd. Door for washing machine
US10036113B2 (en) 2013-07-22 2018-07-31 Whirlpool Corporation Laundry treating appliance with embossed container
USD833697S1 (en) * 2017-03-23 2018-11-13 Samsung Electronics Co., Ltd. Door cover for washing machine
USD915699S1 (en) * 2019-07-19 2021-04-06 Lg Electronics Inc. Washing machine drum lifter
USD917120S1 (en) * 2019-07-19 2021-04-20 Lg Electronics Inc. Washing machine drum lifter
USD923266S1 (en) * 2019-07-19 2021-06-22 Lg Electronics Inc. Set of washing machine drum lifters
USD923265S1 (en) * 2019-07-19 2021-06-22 Lg Electronics Inc. Set of washing machine drum lifters
USD923264S1 (en) * 2019-07-19 2021-06-22 Lg Electronics Inc Washing machine drum lifter
USD923267S1 (en) * 2019-07-19 2021-06-22 Lg Electronics Inc. Set of washing machine drum lifters
CN114941233A (zh) * 2021-02-08 2022-08-26 Lg电子株式会社 衣物处理装置

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006062189B4 (de) 2006-12-22 2009-03-19 Dr. Mirtsch Gmbh Verfahren zum Herstellen einer strukturierten Materialbahn für das Durchströmen von fluiden Medien, strukturierte Materialbahn und Verwendung derselben
KR101136863B1 (ko) 2007-02-28 2012-04-20 삼성전자주식회사 세탁기
DE102008040539A1 (de) * 2008-07-18 2010-01-21 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Wäschebehandlungsmaschine
ES2395983T3 (es) 2008-10-16 2013-02-18 Miele & Cie. Kg Tambor para una secadora de ropa
ES2399368T3 (es) * 2008-10-16 2013-03-27 Miele & Cie. Kg Tambor para una máquina lavadora
ITMC20090059A1 (it) * 2009-03-20 2010-09-21 Qs Group S P A Fascia per cestello di macchina lavabiancheria, lavasciuga e asciugatore e relativa attrezzatura di produzione.
PL2390399T3 (pl) * 2010-05-31 2013-04-30 Miele & Cie Bęben do pralki
DE102011086142A1 (de) 2011-11-11 2013-05-16 BSH Bosch und Siemens Hausgeräte GmbH Waschmaschine mit verringerter Rückbefeuchtung sowie Verfahren zu ihrem Betrieb
DE102013201186A1 (de) 2013-01-25 2014-07-31 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Wäschebehandlungsmaschine
DE102014000083B4 (de) * 2014-01-02 2017-12-07 Dr. Mirtsch Gmbh Verfahren zum Herstellen einer partiell dreidimensional wölbförmig strukturierten Materiaibahn, partiell dreidimensional wölbförmig strukturierte Materialbahn, Verwendung derselben und eine Vorrichtung zur Herstellung derselben
DE102016004142B4 (de) * 2016-03-29 2020-11-12 Armin F. Khadjavi Flüssigkeitsfilter

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US2591143A (en) * 1945-10-22 1952-04-01 Eilersgaard Asger Clothes-washing machine
US4920661A (en) * 1987-10-09 1990-05-01 Hitachi, Ltd. Dehydrating machine
US6334341B1 (en) * 1996-11-02 2002-01-01 Miele & Cie. Gmbh & Co. Cylinder washing machine

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DE4445669A1 (de) * 1994-12-21 1996-06-27 Aeg Hausgeraete Gmbh Waschtrommel für eine Waschmaschine
DE19603710A1 (de) * 1996-02-02 1997-08-07 Aeg Hausgeraete Gmbh Wasserführendes Haushaltsgerät, z. B. Waschtrockner oder Waschmaschine
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DE10145079C1 (de) * 2001-09-13 2002-10-10 Miele & Cie Trommel für einen Wäschetrockner
DE10162918A1 (de) * 2001-12-20 2003-07-03 Bsh Bosch Siemens Hausgeraete Trommel für eine Wäschebehandlungsmaschine
KR20050086206A (ko) * 2004-02-25 2005-08-30 엘지전자 주식회사 드럼세탁기의 드럼

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591143A (en) * 1945-10-22 1952-04-01 Eilersgaard Asger Clothes-washing machine
US4920661A (en) * 1987-10-09 1990-05-01 Hitachi, Ltd. Dehydrating machine
US6334341B1 (en) * 1996-11-02 2002-01-01 Miele & Cie. Gmbh & Co. Cylinder washing machine

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110088276A1 (en) * 2005-12-28 2011-04-21 Bsh Bosch Und Siemens Hausgerate Gmbh Laundry Drum
US8752404B2 (en) 2008-01-16 2014-06-17 Bsh Bosch Und Siemens Hausgerate Gmbh Drum for a laundry treatment machine
US20110048080A1 (en) * 2008-01-16 2011-03-03 BSH Bosch und Siemens Hausgeräte GmbH Drum for a laundry treatment machine
USD748356S1 (en) * 2013-07-16 2016-01-26 Whirlpool Corporation Container for a clothes washing machine
US10036113B2 (en) 2013-07-22 2018-07-31 Whirlpool Corporation Laundry treating appliance with embossed container
USD878690S1 (en) 2013-09-27 2020-03-17 Whirlpool Corporation Container for a clothes washing machine
USD761501S1 (en) * 2013-09-27 2016-07-12 Whirlpool Corporation Container for clothes washing machine
USD830654S1 (en) 2013-09-27 2018-10-09 Whirlpool Corporation Container for clothes washing machine
USD867700S1 (en) * 2013-09-27 2019-11-19 Whirlpool Corporation Container for clothes washing machine
USD772503S1 (en) * 2015-04-29 2016-11-22 Samsung Electronics Co., Ltd. Door for washing machine
USD833697S1 (en) * 2017-03-23 2018-11-13 Samsung Electronics Co., Ltd. Door cover for washing machine
USD915699S1 (en) * 2019-07-19 2021-04-06 Lg Electronics Inc. Washing machine drum lifter
USD917120S1 (en) * 2019-07-19 2021-04-20 Lg Electronics Inc. Washing machine drum lifter
USD923266S1 (en) * 2019-07-19 2021-06-22 Lg Electronics Inc. Set of washing machine drum lifters
USD923265S1 (en) * 2019-07-19 2021-06-22 Lg Electronics Inc. Set of washing machine drum lifters
USD923264S1 (en) * 2019-07-19 2021-06-22 Lg Electronics Inc Washing machine drum lifter
USD923267S1 (en) * 2019-07-19 2021-06-22 Lg Electronics Inc. Set of washing machine drum lifters
CN114941233A (zh) * 2021-02-08 2022-08-26 Lg电子株式会社 衣物处理装置

Also Published As

Publication number Publication date
WO2006131416A1 (de) 2006-12-14
EP1902170A1 (de) 2008-03-26
RU2007144055A (ru) 2009-07-20
RU2402651C2 (ru) 2010-10-27
KR100892544B1 (ko) 2009-04-09
DE102005026175A1 (de) 2006-12-07
KR20080009300A (ko) 2008-01-28
CN101189382A (zh) 2008-05-28

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Owner name: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:EXLER, MARCUS;GEYER, JOHANNES;HEYDER, REINHARD;AND OTHERS;REEL/FRAME:022286/0378;SIGNING DATES FROM 20071112 TO 20071206

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION