ES2362002T3 - DRUM FOR A WASHING MACHINE AND WASHING MACHINE PROVIDED WITH SUCH DRUM. - Google Patents

DRUM FOR A WASHING MACHINE AND WASHING MACHINE PROVIDED WITH SUCH DRUM. Download PDF

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Publication number
ES2362002T3
ES2362002T3 ES06124786T ES06124786T ES2362002T3 ES 2362002 T3 ES2362002 T3 ES 2362002T3 ES 06124786 T ES06124786 T ES 06124786T ES 06124786 T ES06124786 T ES 06124786T ES 2362002 T3 ES2362002 T3 ES 2362002T3
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ES
Spain
Prior art keywords
drum
bulges
washing machine
bulge
perforations
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Active
Application number
ES06124786T
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Spanish (es)
Inventor
Bernd Luettge
Dieter Grimm
Stefanie Oberkirsch
Kraus Hartmut
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Whirlpool Corp
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Whirlpool Corp
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Publication date
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Application filed by Whirlpool Corp filed Critical Whirlpool Corp
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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02Rotary receptacles, e.g. drums

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

Abstract

Tambor (10) adaptado a ser montado de manera giratoria en una cuba de una máquina de lavar o una lavadorasecadora; teniendo dicho tambor (10) una pared cilíndrica (12) provista de perforaciones (18) y con una pluralidad de abultamientos (16), estando orientados dichos abultamientos (16) hacia el exterior del tambor y estando las perforaciones (18) sustancialmente centradas dentro de los abultamientos (16), caracterizado porque cada abultamiento (16) tiene una forma piramidal con una base cuadrada.Drum (10) adapted to be rotatably mounted in a tank of a washing machine or a washer dryer; said drum (10) having a cylindrical wall (12) provided with perforations (18) and with a plurality of bulges (16), said bulges (16) being oriented towards the outside of the drum and the perforations (18) being substantially centered inside of the bulges (16), characterized in that each bulge (16) has a pyramidal shape with a square base.

Description

El invento presente se refiere a un tambor adaptado a ser montado de manera giratoria en una máquina de lavar o lavadora-secadora, dicho tambor tiene una pared cilíndrica provista de perforaciones y con una pluralidad de abultamientos. The present invention relates to a drum adapted to be rotatably mounted in a washing machine or washer-dryer, said drum has a cylindrical wall provided with perforations and with a plurality of bulges.

Se muestra un tambor de este tipo en el documento EP-A-1028189 en el que los abultamientos o secciones elevadas están orientados hacia el interior del tambor. En esta solución conocida las perforaciones o aberturas están dispuestas en hendiduras entre los abultamientos. A drum of this type is shown in EP-A-1028189 in which the bulges or raised sections are oriented towards the inside of the drum. In this known solution, the perforations or openings are arranged in grooves between the bulges.

El documento DE-A-4437986 describe un método para formar una estructura cilíndrica con abultamientos en forma de polígonos diferentes. Se describen abultamientos que tienen una pauta cuadrada, pero no se ofrece ningún detalle respecto a las perforaciones y a la forma de los abultamientos mencionados. Document DE-A-4437986 describes a method for forming a cylindrical structure with bulges in the form of different polygons. Bulges are described that have a square pattern, but no detail is offered regarding the perforations and the shape of the bulges mentioned.

El documento EP-A-935687 describe un tambor para máquinas de lavar en el que los abultamientos siguen orientados hacia el interior del tambor, y en el que las perforaciones están dispuestas en los contornos del borde de los abultamientos. EP-A-935687 describes a drum for washing machines in which the bulges remain oriented towards the inside of the drum, and in which the perforations are arranged in the contours of the edge of the bulges.

Las soluciones conocidas anteriores no ofrecen una buena combinación de un tambor rígido y un tratamiento suave de la colada. The above known solutions do not offer a good combination of a rigid drum and a gentle laundry treatment.

El documento DE 297 05 226 U1 describe un tambor que tiene abultamientos, de acuerdo con el preámbulo de la reivindicación 1. Document DE 297 05 226 U1 describes a drum that has bulges, according to the preamble of claim 1.

Un objetivo del invento presente es proporcionar un tambor del tipo mencionado anteriormente que aumente la suavidad del tratamiento de la colada de los tambores de alta velocidad de giro y en el que se aumente la rigidez de la cesta del tambor. An object of the present invention is to provide a drum of the aforementioned type that increases the smoothness of the laundry treatment of the high spinning drums and in which the rigidity of the drum basket is increased.

Se consigue el objetivo anterior por medio de un tambor reivindicado en las reivindicaciones adjuntas. The above objective is achieved by means of a drum claimed in the appended claims.

Una de las características principales del invento presente es proporcionar abultamientos que estén orientados hacia el exterior del tambor y en los que las perforaciones estén centradas dentro de los abultamientos, por consiguiente, cada abultamiento es punzado en forma de un frustum de pirámide desde el interior del tambor, y cada perforación u orificio está en el centro de cada punzado y por tanto cada abultamiento tiene una forma piramidal con una base cuadrada. One of the main features of the present invention is to provide bulges that are oriented outwardly of the drum and in which the perforations are centered within the bulges, therefore, each bulge is punctured in the form of a pyramid frustum from inside the drum. drum, and each perforation or hole is in the center of each puncture and therefore each bulge has a pyramidal shape with a square base.

De acuerdo con una característica preferida del invento, los abultamientos con forma piramidal están dispuestos en una matriz de filas-columnas, en la que la posición de una columna de abultamientos a la siguiente columna de abultamientos adyacentes está separada a 1/3 de la distancia entre dos filas adyacentes, que es también el paso entre abultamientos. According to a preferred feature of the invention, pyramid shaped bulges are arranged in a row-column matrix, in which the position of a bulge column to the next adjacent bulge column is separated 1/3 of the distance between two adjacent rows, which is also the passage between bulges.

Una ventaja particular del tambor de acuerdo con el invento es la posibilidad de cambiar la distancia de una fila de abultamientos con forma piramidal a la siguiente sin reducir la distancia entre las zonas punzadas. El espacio plano entre abultamientos no aumenta cambiando la separación. Además, cambiando la separación no cambia la forma de los abultamientos. A particular advantage of the drum according to the invention is the possibility of changing the distance from one row of pyramidal bulges to the next without reducing the distance between the punctured areas. The flat space between bulges does not increase by changing the separation. In addition, changing the separation does not change the shape of the bulges.

De preferencia, los abultamientos están formados para evitar zonas sustancialmente planas entre abultamientos para que las gotas de agua estén inmediatamente sobre una superficie inclinada/deformada y a continuación sean conducidas hacia perforaciones debido a la fuerza centrífuga y a los abultamientos con forma de embudo. Preferably, the bulges are formed to avoid substantially flat areas between bulges so that the water droplets are immediately on an inclined / deformed surface and are then driven into perforations due to centrifugal force and funnel-shaped bulges.

Otra ventaja importante del invento presente es el aumento de la rigidez del tambor a la flexión, que es alrededor del 25% en comparación con tambores de máquinas de lavar conocidas. Another important advantage of the present invention is the increase in rigidity of the bending drum, which is about 25% compared to drums of known washing machines.

Otras ventajas y características del invento presente se harán más evidentes a partir de la descripción detallada que se adjunta a continuación, que se proporciona meramente como un ejemplo del invento, haciendo referencia a los dibujos adjuntos en los que: Other advantages and features of the present invention will become more apparent from the detailed description attached below, which is merely provided as an example of the invention, referring to the accompanying drawings in which:

-la Figura 1 es una vista en perspectiva esquemática de un tambor de acuerdo con el invento adaptado a ser usado en una máquina de lavar; -la Figura 2 es una vista ampliada de un detalle del tambor mostrado en la Figura 1; -la Figura 3 es un detalle de la Figura 2, que muestra una vista en planta de un único abultamiento del tambor; y -la Figura 4 es un corte transversal a lo largo de la línea IV-IV de la Figura 3. -Figure 1 is a schematic perspective view of a drum according to the invention adapted to be used in a washing machine; - Figure 2 is an enlarged view of a detail of the drum shown in Figure 1; -Figure 3 is a detail of Figure 2, showing a plan view of a single bulge of the drum; Y - Figure 4 is a cross section along the line IV-IV of Figure 3.

Con referencia a los dibujos, un tambor 10 de una máquina de lavar comprende una pared de metal, cilíndrica, 12 cerrada por un extremo por una pared trasera sustancialmente plana (no mostrada) y que presenta, en su otro extremo una abertura 14 para cargar/descargar colada (la abertura 14 está alineada con una puerta –no mostrada-de la máquina de lavar). Incluso si el tambor mostrado en la Figura 1 está destinado a ser montado en la cuba de una máquina de lavar de carga frontal, el tambor puede, sin embargo, tener dos paredes de extremo en oposición y puede ser usado también en una lavadora de carga superior (en esta última, una abertura que se puede cerrar para cargar/descargar la colada está dispuesta en la pared cilíndrica del tambor). With reference to the drawings, a drum 10 of a washing machine comprises a cylindrical metal wall 12 closed at one end by a substantially flat rear wall (not shown) and having, at its other end, an opening 14 for loading / discharge laundry (opening 14 is aligned with a door - not shown - of the washing machine). Even if the drum shown in Figure 1 is intended to be mounted in the tank of a front-loading washing machine, the drum can, however, have two opposite end walls and can also be used in a load washer upper (in the latter, an opening that can be closed to load / unload the laundry is arranged in the cylindrical wall of the drum).

La pared 12 del tambor 10 está provista de una pluralidad de abultamientos 16 dispuestos en una especie de matriz de filas-columnas como se muestra en las Figuras 1 y 2. Las columnas de la matriz, indicadas con la referencia Y, son todas paralelas entre sí y también al eje de giro del tambor 10, indicado con la referencia R. En el ejemplo mostrado, cada columna Y está separada 1/3 del paso P entre cada abultamiento 16. Dicha separación está indicada con la referencia K en la Figura 2. Debido a esta separación K de columnas adyacentes de la matriz, no es posible identificar filas paralelas en la matriz, más bien filas “irregulares” de la matriz de abultamientos. El solicitante ha probado esta disposición en comparación con otras y ha sido considerada la preferida respecto a la rigidez del tambor o al tratamiento suave de la colada durante el lavado. Sin embargo, también una pauta de matriz regular de los abultamientos, o una separación K de valor diferente (por ejemplo, una separación mitad) ofrece muchas ventajas técnicas en comparación con la técnica anterior y debe ser considerada dentro del ámbito del invento presente. The wall 12 of the drum 10 is provided with a plurality of bulges 16 arranged in a kind of row-column matrix as shown in Figures 1 and 2. The columns of the matrix, indicated with the reference Y, are all parallel between yes and also to the axis of rotation of the drum 10, indicated with the reference R. In the example shown, each column Y is separated 1/3 of the step P between each bulge 16. Said separation is indicated with the reference K in Figure 2 Due to this separation K from adjacent columns of the matrix, it is not possible to identify parallel rows in the matrix, rather "irregular" rows of the bulge matrix. The applicant has tested this provision in comparison to others and has been considered the preferred one with respect to the rigidity of the drum or the gentle treatment of the laundry during washing. However, also a regular matrix pattern of bulges, or a separation K of different value (for example, a half separation) offers many technical advantages compared to the prior art and should be considered within the scope of the present invention.

Cada abultamiento tiene una base cuadrada y tiene una perforación u orificio centrado 18 para el paso de agua durante el proceso de lavado/secado. La distancia entre abultamientos adyacentes es elegida para reducir o evitar cualquier superficie plana del tambor entre ellos. Los orificios 18 se obtienen punzando la lámina de metal de la pared 12 y el sentido del punzado es desde el interior del tambor 10 hacia el exterior del mismo, para evitar las rebabas. Each bulge has a square base and has a perforation or centered hole 18 for the passage of water during the washing / drying process. The distance between adjacent bulges is chosen to reduce or avoid any flat surface of the drum between them. The holes 18 are obtained by puncturing the metal sheet of the wall 12 and the direction of the puncture is from the inside of the drum 10 towards the outside thereof, to avoid burrs.

En las Figuras 3 y 4 se muestra la forma peculiar de cada abultamiento 16. Ya que la forma es sustancialmente un frustum de una pirámide, pueden identificarse al menos dos regiones diferentes: una primera región definida por paredes planas inclinadas 16a redondeadas mediante regiones de esquina 16b y una segunda región definida por una pared plana de fondo 16c (parte superior del frustum de pirámide) en la que el orificio 18 correspondiente está situado centralmente. Figures 3 and 4 show the peculiar shape of each bulge 16. Since the shape is substantially a frustum of a pyramid, at least two different regions can be identified: a first region defined by inclined flat walls 16a rounded by corner regions 16b and a second region defined by a flat bottom wall 16c (upper part of the pyramid frustum) in which the corresponding hole 18 is centrally located.

la forma de los abultamientos 16 descritos anteriormente, junto con el diseño del orificio, proporciona un aumento sorprendente de la rigidez del tambor, particularmente con respecto a la cizalla y a la flexión. El nuevo diseño es particularmente ventajoso respecto a su rigidez a la flexión, que es la característica mecánica más importante cuando el tambor gira a altas velocidades, como en las lavadoras de alta velocidad de giro modernas. The shape of the bulges 16 described above, together with the design of the hole, provides a surprising increase in drum rigidity, particularly with respect to shear and bending. The new design is particularly advantageous with respect to its flexural stiffness, which is the most important mechanical characteristic when the drum rotates at high speeds, as in modern high speed spin washers.

Claims (6)

REIVINDICACIONES 1. Tambor (10) adaptado a ser montado de manera giratoria en una cuba de una máquina de lavar o una lavadora-secadora; teniendo dicho tambor (10) una pared cilíndrica (12) provista de perforaciones (18) y con una pluralidad de1. Drum (10) adapted to be rotatably mounted in a tank of a washing machine or a washer-dryer; said drum (10) having a cylindrical wall (12) provided with perforations (18) and with a plurality of 5 abultamientos (16), estando orientados dichos abultamientos (16) hacia el exterior del tambor y estando las perforaciones (18) sustancialmente centradas dentro de los abultamientos (16), caracterizado porque cada abultamiento (16) tiene una forma piramidal con una base cuadrada. 5 bulges (16), said bulges (16) facing the outside of the drum and the perforations (18) being substantially centered within the bulges (16), characterized in that each bulge (16) has a pyramidal shape with a square base . 2. Tambor de acuerdo con la reivindicación 1, caracterizado porque cada abultamiento (16) tiene la forma de un 10 frustum de pirámide. 2. Drum according to claim 1, characterized in that each bulge (16) is in the form of a pyramid frustum. 3. Tambor de acuerdo con cualquiera de las reivindicaciones precedentes, caracterizado porque los abultamientos 3. Drum according to any of the preceding claims, characterized in that the bulges (16) están dispuestos en una especie de matriz de filas-columnas en la que las columnas (Y) son paralelas a los ejes (16) are arranged in a kind of row-column matrix in which the columns (Y) are parallel to the axes (R) del tambor (10) y están separadas a una fracción del paso predeterminada respecto a las columnas (Y) 15 adyacentes. (R) of the drum (10) and are separated at a fraction of the predetermined step from the adjacent columns (Y) 15. 4. Tambor de acuerdo con la reivindicación 3, caracterizado porque la separación (K) es 1/3 del paso (P). 4. Drum according to claim 3, characterized in that the separation (K) is 1/3 of the passage (P). 5. Tambor de acuerdo con cualquiera de las reivindicaciones 2-4, caracterizado porque cada abultamiento (16) 20 tiene paredes planas inclinadas (16a) redondeadas mediante regiones de esquina (16b). 5. Drum according to any of claims 2-4, characterized in that each bulge (16) 20 has inclined flat walls (16a) rounded by corner regions (16b). 6. Máquina de lavar o lavadora-secadora caracterizado porque comprende un tambor (10) de acuerdo con cualquiera de las reivindicaciones precedentes. 6. Washing machine or washer-dryer characterized in that it comprises a drum (10) according to any of the preceding claims.
ES06124786T 2006-11-24 2006-11-24 DRUM FOR A WASHING MACHINE AND WASHING MACHINE PROVIDED WITH SUCH DRUM. Active ES2362002T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20060124786 EP1925704B1 (en) 2006-11-24 2006-11-24 Drum for a washing machine and washing machine provided with such drum

Publications (1)

Publication Number Publication Date
ES2362002T3 true ES2362002T3 (en) 2011-06-27

Family

ID=37891621

Family Applications (1)

Application Number Title Priority Date Filing Date
ES06124786T Active ES2362002T3 (en) 2006-11-24 2006-11-24 DRUM FOR A WASHING MACHINE AND WASHING MACHINE PROVIDED WITH SUCH DRUM.

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EP (1) EP1925704B1 (en)
DE (1) DE602006020594D1 (en)
ES (1) ES2362002T3 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101136863B1 (en) 2007-02-28 2012-04-20 삼성전자주식회사 Washing machine
CN101845739B (en) * 2009-03-23 2013-08-07 海尔集团公司 Inner drum of washing machine with high-efficient washing and dehydration structure
GB2473224A (en) * 2009-09-03 2011-03-09 John Vincent Flanagan Detergent-less washing machine
EP2372010B1 (en) * 2010-04-01 2016-09-21 Electrolux Home Products Corporation N.V. Rotatable drum for laundry washing machines and assembly method of the rotatable drum
CZ2010341A3 (en) * 2010-05-03 2011-03-16 Primus Ce S.R.O. Washing machine drum
TR201009624A2 (en) * 2010-11-23 2011-01-21 Vestel Beyaz Eşya Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇@ A drum surface for washing machines.
EP2628839A1 (en) * 2012-02-18 2013-08-21 Samsung Electronics Co., Ltd Washing machine
US10036113B2 (en) 2013-07-22 2018-07-31 Whirlpool Corporation Laundry treating appliance with embossed container
CN104420124B (en) * 2013-08-29 2018-05-22 青岛海尔滚筒洗衣机有限公司 A kind of washing machine inner tub and washing machine
USD761501S1 (en) 2013-09-27 2016-07-12 Whirlpool Corporation Container for clothes washing machine
CN105220404A (en) * 2014-06-20 2016-01-06 无锡小天鹅股份有限公司 Washing machine and inner core thereof
CN105063962B (en) * 2015-08-05 2018-09-18 合肥美的洗衣机有限公司 Washing machine
EP3412823B1 (en) * 2017-06-08 2022-03-30 LG Electronics Inc. Drum of laundry machine
EP3715522B1 (en) * 2019-03-26 2022-05-11 Electrolux Appliances Aktiebolag Washing drum for a laundry washing machine and laundry washing machine equipped with such drum
TR2021012024A1 (en) * 2021-07-29 2023-02-21 Vestel Beyaz Esya Sanayi Ve Ticaret Anonim Sirketi A drum for household appliances.
CN115404663B (en) * 2022-09-20 2025-07-11 珠海格力电器股份有限公司 Inner drum assembly and washing machine having the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU521357B2 (en) * 1977-09-26 1982-04-01 Fisher & Paykel Limited Bowl or tub
DE29705226U1 (en) 1997-03-22 1998-07-23 AEG Hausgeräte GmbH, 90429 Nürnberg Washing drum for a washing machine

Also Published As

Publication number Publication date
EP1925704B1 (en) 2011-03-09
DE602006020594D1 (en) 2011-04-21
EP1925704A1 (en) 2008-05-28

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