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WO2009103683A1 - Tambour de lave-linge et/ou de sèche-linge - Google Patents

Tambour de lave-linge et/ou de sèche-linge Download PDF

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Publication number
WO2009103683A1
WO2009103683A1 PCT/EP2009/051795 EP2009051795W WO2009103683A1 WO 2009103683 A1 WO2009103683 A1 WO 2009103683A1 EP 2009051795 W EP2009051795 W EP 2009051795W WO 2009103683 A1 WO2009103683 A1 WO 2009103683A1
Authority
WO
WIPO (PCT)
Prior art keywords
driver
laundry drum
axis
laundry
drum according
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.)
Ceased
Application number
PCT/EP2009/051795
Other languages
German (de)
English (en)
Inventor
Miguel Javier Caparrós Ezpeleta
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
Publication of WO2009103683A1 publication Critical patent/WO2009103683A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 

Definitions

  • the invention relates to a laundry drum for a washing and / or drying machine, wherein the laundry drum rotatable about an axis has at least one driver on an inner surface of the casing.
  • Such a laundry drum for a washing and / or drying machine is a substantially cylindrical body with a usually formed from sheet metal, especially stainless steel, cylindrical shell, to which a round, more or less flat rear wall or an annular, more or connect less flat front wall.
  • the front wall has a central opening through which laundry items to be treated can be inserted into the drum or removed from the drum.
  • the cylindrical jacket carries on a facing the interior of the drum shell inner surface so-called driver; these are indentations or attached components which, when the drum is rotated, catch laundry items inside it and take it along, lifting the items of laundry up. If a driver has reached a corresponding height when turning the drum, the entrained laundry items fall off and back down into the drum.
  • Carrier can be molded into the drum, so be designed as folds in the otherwise cylindrical shell.
  • drivers are made as separate components and inserted into the cylindrical shell.
  • Known catch which are conventionally designed as ribs in elongated shape, are arranged on the shell inner surface parallel or at a defined angle to the axis of the laundry drum.
  • three to four drivers are provided at the same distance from each other on the shell inside the laundry drum.
  • the ribs extend over the entire or almost entire length of the laundry drum in the axial direction.
  • the drivers support the necessary mechanical movement of the laundry items in the drum, which is necessary for the removal of impurities from the laundry items, usually with the addition of detergent, or for uniform drying of the laundry items.
  • the drivers lift the items of laundry out of a wash liquor during the slow rotation of the laundry drum and let the items of laundry fall back into the wash liquor as the laundry drum rotates.
  • the laundry items are rotated and a wetting of the laundry items with wash liquor is thereby made possible.
  • the carriers in particular with appropriately adapted surface design, also transport washing liquor and, like the items of laundry, release it again as the laundry drum rotates.
  • the co-promotion of wash liquor increases the mixing of the wash liquor, in particular with respect to the detergent, and increases wetting of the laundry with alkaline water, which leads to an overall improved cleaning of the laundry.
  • the entrainment of alkaline water by the driver can also adversely affect the drive motor, since the motor must have an increased torque for the rotation of the laundry drum due to the increased weight on the carriers when emerging from the wash liquor acting.
  • uneven distribution of the laundry items between the respective carriers can result, in particular in the corner regions at the transition of the jacket to the outer walls of the laundry drum.
  • stresses can occur in the lateral surface of the laundry drum.
  • the vibration increases with an adverse effect on the life of individual washing machine components. A stronger vibration also causes increased noise.
  • the object of the invention is to provide a laundry drum for a washing and / or drying machine, the laundry items so distributed during the rotation process of the laundry drum so that occurring stresses in the outer surface of the laundry drum and occurring vibrations are reduced, and optionally the Waschlaugenmitbepetit is optimized ,
  • the object is achieved by a laundry drum according to independent claim.
  • Preferred embodiments of the laundry drum according to the invention are in particular subject of the associated dependent claims.
  • the laundry drum according to the invention for a washing and / or drying machine, wherein the laundry drum rotatable about an axis has at least one driver on a shell inner surface, the at least one driver has an axial elongate extension, which is substantially smaller than one with respect to the axis axial extent of the shell inner surface is.
  • a jacket inner surface of a drum rotatable about an axis for a washing and / or drying machine has at least one driver whose elongate extent along a generatrix in the axial direction is substantially smaller than the entire axial extent of the generatrices wherein the elongate extension of the driver is preferably in the range of one third to half of the entire generatrix length.
  • a single driver can be arranged on the respective axial generatrix centered or offset from the center of the generatrix, in particular, if more than one driver per generatrix is provided. In the arrangement of at least two drivers on an axial surface line remain due to the respective elongate extent of the individual driver free spaces on the axial generatrix.
  • the idea underlying the invention is thus to avoid complete or almost complete subdivisions of the laundry drum in sections in the circumferential direction by the individual driver extends only over a fraction of the axial length of the laundry drum, so that along a generatrix of the laundry drum in the axial direction zones are provided with and zones without drivers. Due to the fact that the surface of the driver only takes up a small part of the total possible area along the axial surface line in longitudinal section, less washing water is entrained during rotation of the laundry drum. This has a positive effect on the torque of the motor required for driving the laundry drum. Also advantageous is the resulting more uniform distribution of the laundry items during both a washing and a spinning process or during a drying process, especially in the drum circumferential direction. There are less stresses in the lateral surface of the laundry drum and thus adversely impacting vibrations.
  • the driver may have a curved rectangular base and be positioned with this on the shell inner surface, that the sides of the base are directed parallel or perpendicular to the axis; but it is also possible to position the driver so that all sides of its base are aligned at an angle to the axis.
  • the at least one driver is detachably connected to the laundry drum.
  • conventional types of connection such as a clamp-and-snap connection, may be provided.
  • a detachable connection between the laundry drum and driver allows in comparison to a principle also conceivable solid connection or an integral structure a simplified manufacture and assembly of the arrangement and independent, free choice of material for driver and drum.
  • a connection that can be solved by the user of the washing machine can be solved by the user of the washing machine.
  • the driver can be adapted to washing process and type of laundry.
  • the dimension of the applied to the laundry drum base of the at least one driver is preferably such that a voltage applied to the shell inner surface base of the at least one driver a ratio between a relative to the axis zirkumferenzialen width to an axial length with respect to the axis in a range of 1: 1 to 1: 5.
  • the advantage lies in particular in the resulting stability properties, which are set in the specified ratio range in the driver.
  • a preferred embodiment of a driver has in longitudinal section in the direction of the axis of the laundry drum a conical or pyramidal shape, ie the more or less perpendicular to a surface line axially or zirkumferenzial aligned side surfaces are inclined relative to the surface line at an angle less than 90 degrees.
  • the height development is oriented approximately to that of conventional drivers.
  • An end of the driver facing away from the laundry drum is in particular flattened.
  • the side surfaces of the long sides are at an angle equal to or less than 90 degrees inclined to the lateral surface.
  • the base surface shape in this preferred embodiment projects onto the shell inner surface projecting an elliptical to circular shape.
  • the base shape may be formed in a more pyramid-like shape as rectangular with rounded corners. This preferred shape and the flattened tip an advantageous laundry care is achieved.
  • the driver can also be executed in a longitudinally section in the axial direction semi-elliptical shape.
  • the advantage of both embodiments is the easy entrainment but also the necessary slipping of the laundry items from the driver. This adjusts a favorable laundry.
  • the driver has a cavity on the inside, which is arranged to reduce the weight of the driver and thus has a favorable effect on stresses in the jacket and on the torque of the motor.
  • the driver can take a weight. This is particularly advantageous in laundry drums of top loading machines with an engagement hole in the lateral surface of advantage, since hereby a uniform weight distribution and thus a positive effect on sheath voltage, motor torque and vibration is given.
  • bores are also carried out in the driver. Lye water can flow through it and on the one hand cause a lower weight in the movement of the driver from the tub as well as a better wetting of adjacent laundry items.
  • a plurality of carriers of the type according to the invention are arranged. A better distribution of the laundry is thereby effected.
  • driver arranged in different shapes Preferably, if a plurality of drivers are provided, drivers arranged in different shapes.
  • the laundry drum can be adapted to predetermined or desired requirements for washing and / or drying process and type of laundry.
  • at least two drivers in the direction of the axis are arranged at a distance next to each other, so that their transverse to the axis certain cross sections in projection in the direction of the axis at least partially overlap. Said coverage is at least partially, but it can also be complete.
  • Tappets on a further axial generatrix are arranged with sufficient clearance, ie enough free inner shell surface, so that the laundry items can be distributed between them.
  • the arrangement of the drivers on the axial generatrix may correspond to the arrangement of the drivers on the adjacent generatrix, or advantageously cover the free spaces of the adjacent generatrix, which result from the local arrangement of the driver.
  • the drivers can be made of plastic or, when manufactured in one piece with the laundry drum, of stainless steel.
  • Fig. 1 is a schematic view of a laundry drum of a washing and / or
  • Fig. 2 is a schematic view of a driver.
  • Fig. 1 shows a laundry drum 10 of a washing and / or drying machine (not shown) in front loader design.
  • the laundry drum 10 has a rear wall 12 and a front wall 14, each forming an outer side of the laundry drum.
  • a jacket 16 is arranged, which is conventionally made of a perforated strip made of metal.
  • the surface of the shell 16 has openings so that the water can penetrate during the washing or drying cycle.
  • the laundry drum 10 is rotated by means of a motor (not shown) by the laundry drum 10 is rotated about its axis of rotation 18.
  • the front wall 14 has an opening for loading and unloading the laundry drum 10 with laundry.
  • the front wall 14 is closed and the loading and unloading of the laundry drum 10 with laundry takes place via a closable opening in the shell 16 (top loader arrangement).
  • a plurality of drivers 22 are arranged on a shell inner surface 20 of the laundry drum 10 .
  • the drivers 22 (see Fig. 2) have two longitudinal sides 24a, 24b, which extend in the direction of the axis 18, two transverse sides 26a, 26b, which extend transversely or circumiferenzial to the axis 18, a base 28, which on the Mantelinnenflä - Surface 20 is applied, and a tip portion 30 which faces away from the base 28, on.
  • the tip region 30 has a base surface 28 similar shape.
  • the land 28 has a width-to-length ratio of 1: 1 to 1: 5, corresponding to the width of the lateral sides 26a, 26b and the length of the longitudinal sides 24a, 24b, and may take any relationship therebetween.
  • the width-aspect ratio is in a range of 1: 1 to 1: 2.
  • a width-to-height ratio is about 1: 1 to 1: 2.
  • the longitudinal sides 24a, 24b and the transverse sides 26a, 26b are inclined at an angle smaller than 90 ° relative to the inner surface of the casing. This results in the longitudinal and cross-section of a conical shape of the driver 10.
  • the base 28 forms a rectangle with rounded corners. With a width-to-length ratio of 1: 1, the base 28 forms a square with rounded corners.
  • a driver 22 in contrast to the driver 22, has a semi-elliptical shape in longitudinal section due to the curved shape of the transverse sides and the rounded tip region.
  • the edges at the transition of the transverse sides to the long sides are rounded.
  • the longitudinal sides are inclined at an angle less than or equal to 90 ° with respect to the inner surface of the jacket 20.
  • the cross section in the drum circumferential direction of the driver 22 results in a conical shape.
  • the base forms a rectangle with rounded corners, or at the same aspect ratio forms a square with rounded corners.
  • the shape of the driver 22 may vary in other embodiments of the present invention.
  • the Longitudinal sides seen in cross-section have a semi-elliptical shape.
  • each longitudinal side and / or each transverse side can each have at least one kink which is related to the base surface, so that the base surface assumes a polygonal shape.
  • the kinks in the respective side surfaces are slightly rounded. In the case of multiply arranged kinks in a side surface, the rounding off of the kinks results in a curve-like shape of the respective side relative to the base surface.
  • the base can also form an elliptical shape, or at the same width-length ratio of the transverse sides and sides a circular shape.
  • a trapezoidal base results when one of the two opposite longitudinal sides or the transverse sides is shorter than the respective opposite side.
  • the heights of the respective sides are formed differently so that the tip portion has different rounding ratios to the respective side surfaces.
  • the curvature of the tip region with respect to the base surface may be concave or convex.
  • the driver 22 has inside a cavity (not shown). In the longitudinal and transverse sides 24a, 24b, 26a, 26b through holes 32 are arranged, flows through the lye water.
  • the drivers 22 are detachably fastened to the shell inner surface with a clamping snap-in connection (not shown).
  • the driver 22 may be detachably mounted to the shell inner surface 20 in another conventional manner of attachment. Furthermore, a non-detachable connection is possible. As a further variant of the driver can also be made integral with the jacket.
  • the cavity of the driver 22 can be equipped with a weight. This is advantageous in the embodiment of a washing and / or drying machine which is designed as a top loader. Thus, the different weight ratios that result from the arranged reclosable opening for loading and unloading the laundry drum, can be compensated.
  • drivers 22 with both a conical and semi-elliptical longitudinal section are arranged axially along the generatrix of the drivers.
  • drivers 22 can in another embodiment of the laundry drum 10 may be arranged even more forms of the driver.
  • different drivers 22 may be arranged a shape.
  • driver 22 on the inner surface of the shell 20, if, as in Fig. 1, a plurality of drivers are provided ordered.
  • two drivers 10 may be arranged side by side with a distance along the longitudinal direction along an axial surface line.
  • a driver 10 is arranged centrally on a generatrix.
  • a plurality of drivers 22 may be arranged at random on the shell inner surface even without recognizable order. Furthermore, it is also possible to arrange more than two drivers 22 along an axial generatrix, even slightly offset.
  • the laundry drum 10 of a preferred embodiment is slowly rotated about the axis of rotation 18 during operation of the washing and / or drying machine.
  • a part of the laundry drum 10 always immersed in the tub.
  • the laundry items are wetted with alkaline water and into the cavities of the driver 22 penetrates through the holes 32 lye water.
  • the continuous movement of individual items of laundry from the liquor water area are picked up by the distributed on the inner surface of the shell 20 arranged driver 22 and transported.
  • lye water from the cavities through the holes 32 and wets or penetrates into the laundry.
  • the items of laundry slip from the drivers 22 again and fall back into the lye.

Landscapes

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

Abstract

L'invention concerne un tambour de lave-linge et/ou de sèche-linge, sachant que le tambour (10), rotatif autour d’un axe (18) présente sur une surface d’enveloppe intérieure (20) au moins un entraîneur (22). Le ou les entraîneurs (22) présentent une étendue axiale longitudinale, relativement à l’axe (18), qui est inférieure à une étendue axiale, relativement à l’axe (18), de la surface d’enveloppe intérieure (20). De préférence, une multiplicité de tels entraîneurs (22) sont présents.
PCT/EP2009/051795 2008-02-22 2009-02-16 Tambour de lave-linge et/ou de sèche-linge Ceased WO2009103683A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200800610 2008-02-22
ES200800610A ES2325050B1 (es) 2008-02-22 2008-02-22 Tambor de lavado para una maquina lavadora y/o secadora.

Publications (1)

Publication Number Publication Date
WO2009103683A1 true WO2009103683A1 (fr) 2009-08-27

Family

ID=40718641

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/051795 Ceased WO2009103683A1 (fr) 2008-02-22 2009-02-16 Tambour de lave-linge et/ou de sèche-linge

Country Status (2)

Country Link
ES (1) ES2325050B1 (fr)
WO (1) WO2009103683A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011006697A1 (de) 2011-04-04 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel einer Waschmaschine
KR20200085636A (ko) 2019-01-07 2020-07-15 엘지전자 주식회사 세탁물 처리기기
JP2022020855A (ja) * 2019-02-01 2022-02-01 エルジー エレクトロニクス インコーポレイティド 洗濯処理装置
WO2023280634A1 (fr) * 2021-07-09 2023-01-12 Miele & Cie. Kg Tambour pour une machine à laver et machine à laver
DE102021126013A1 (de) 2021-10-07 2023-04-13 Miele & Cie. Kg Trommel für einen Wäschetrockner und Wäschetrockner

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1827413U (de) * 1958-05-12 1961-03-02 Siemens Elektrogeraete Gmbh Waeschemitnehmer fuer eine trommelwaschmaschine.
DE2915092A1 (de) * 1978-04-14 1979-10-31 Hitachi Ltd Trommelwaschmaschine
EP0533004A1 (fr) * 1991-09-18 1993-03-24 Bauknecht Hausgeräte GmbH Nervures d'entraînement pour appareil domestique, par exemple sèche linge
DE19737340A1 (de) * 1997-08-27 1999-03-04 Aeg Hausgeraete Gmbh Programmgesteuerter elektrischer Wäschetrockner
EP1270794A1 (fr) * 2001-06-29 2003-01-02 Lg Electronics Inc. Tambour pour sèche-linge
EP1382732A2 (fr) * 2002-06-22 2004-01-21 Electrolux Home Products Corporation N.V. Lave-linge ou sèche-linge
WO2008000593A1 (fr) * 2006-06-27 2008-01-03 BSH Bosch und Siemens Hausgeräte GmbH Système modulaire pour des tambours à linge d'appareils d'entretien du linge

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1187859A (en) * 1967-08-25 1970-04-15 Baker Perkins Jaxons Ltd Machine for Washing Laundry.
US3608338A (en) * 1970-02-26 1971-09-28 Ludell Mfg Co Washing machine
FR2277176A1 (fr) * 1974-07-04 1976-01-30 Bhavsar Guy Machine pour le traitement du linge, plus particulierement machine a laver le linge
IT1246497B (it) * 1989-12-11 1994-11-19 Bosch Siemens Hausgeraete Tamburo di macchina lavatrice
DE10006975B4 (de) * 2000-02-16 2004-08-12 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Waschmaschine
ITMC20060162A1 (it) * 2006-11-28 2008-05-29 Meccanica Generale Srl Cestello per lavatrici in grado di evitare il danneggiamento della biancheria in esso caricata.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1827413U (de) * 1958-05-12 1961-03-02 Siemens Elektrogeraete Gmbh Waeschemitnehmer fuer eine trommelwaschmaschine.
DE2915092A1 (de) * 1978-04-14 1979-10-31 Hitachi Ltd Trommelwaschmaschine
EP0533004A1 (fr) * 1991-09-18 1993-03-24 Bauknecht Hausgeräte GmbH Nervures d'entraînement pour appareil domestique, par exemple sèche linge
DE19737340A1 (de) * 1997-08-27 1999-03-04 Aeg Hausgeraete Gmbh Programmgesteuerter elektrischer Wäschetrockner
EP1270794A1 (fr) * 2001-06-29 2003-01-02 Lg Electronics Inc. Tambour pour sèche-linge
EP1382732A2 (fr) * 2002-06-22 2004-01-21 Electrolux Home Products Corporation N.V. Lave-linge ou sèche-linge
WO2008000593A1 (fr) * 2006-06-27 2008-01-03 BSH Bosch und Siemens Hausgeräte GmbH Système modulaire pour des tambours à linge d'appareils d'entretien du linge

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011006697A1 (de) 2011-04-04 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel einer Waschmaschine
DE102011006697B4 (de) 2011-04-04 2022-10-13 BSH Hausgeräte GmbH Wäschetrommel einer Waschmaschine
KR20200085636A (ko) 2019-01-07 2020-07-15 엘지전자 주식회사 세탁물 처리기기
JP2022020855A (ja) * 2019-02-01 2022-02-01 エルジー エレクトロニクス インコーポレイティド 洗濯処理装置
US12227890B2 (en) 2019-02-01 2025-02-18 Lg Electronics Inc. Laundry treating apparatus
WO2023280634A1 (fr) * 2021-07-09 2023-01-12 Miele & Cie. Kg Tambour pour une machine à laver et machine à laver
BE1029571B1 (de) * 2021-07-09 2023-02-06 Miele & Cie Trommel für eine Waschmaschine und Waschmaschine
DE102021126013A1 (de) 2021-10-07 2023-04-13 Miele & Cie. Kg Trommel für einen Wäschetrockner und Wäschetrockner

Also Published As

Publication number Publication date
ES2325050B1 (es) 2010-06-07
ES2325050A1 (es) 2009-08-24

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