ES2375587T3 - WASHING MACHINE TANK PROVIDED WITH AN EXTERNAL REINFORCEMENT COAT ON THE LOWER WALL. - Google Patents

WASHING MACHINE TANK PROVIDED WITH AN EXTERNAL REINFORCEMENT COAT ON THE LOWER WALL. Download PDF

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Publication number
ES2375587T3
ES2375587T3 ES08720243T ES08720243T ES2375587T3 ES 2375587 T3 ES2375587 T3 ES 2375587T3 ES 08720243 T ES08720243 T ES 08720243T ES 08720243 T ES08720243 T ES 08720243T ES 2375587 T3 ES2375587 T3 ES 2375587T3
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Spain
Prior art keywords
washing machine
cover
bottom wall
machine tank
tank according
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Application number
ES08720243T
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Spanish (es)
Inventor
Gianfranco Bacelli
Stefano Mancini
Simone Pardini
Giuseppe Perticara
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Meccanica Generale SRL
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Meccanica Generale SRL
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Priority claimed from ITAN20070008 external-priority patent/ITAN20070008A1/en
Priority claimed from ITAN20070009 external-priority patent/ITAN20070009A1/en
Application filed by Meccanica Generale SRL filed Critical Meccanica Generale SRL
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Publication of ES2375587T3 publication Critical patent/ES2375587T3/en
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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
    • D06F37/26Casings; Tubs
    • D06F37/264Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
    • 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
    • D06F37/26Casings; Tubs
    • D06F37/267Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/269Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for the bearing of the rotary receptacle
    • 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
    • D06F37/04Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • 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
    • D06F37/26Casings; Tubs
    • D06F37/261Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • D06F37/262Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding
    • 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
    • D06F37/26Casings; Tubs
    • D06F37/267Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/268Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12Casings; Tubs

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  • 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)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Abstract

The present invention relates to a washing machine tank (1), of the type provided with a basically cylindrical structure obtained by moulding plastic materials, designed to house a rotary metal drum, characterised in that it is provided with a smooth bottom wall (2) with central hole, against which a circular cap (3) is exactly engaged and permanently fixed with concavity facing the bottom wall, with a cylindrical nozzle in central position designed to be perfectly aligned with the central hole of the bottom wall.

Description

Tanque de máquina lavadora provisto de una capa de refuerzo externa en la pared inferior. Washing machine tank equipped with an external reinforcement layer on the bottom wall.

5 La presente solicitud de patente para la invención industrial se refiere a un tanque de máquina lavadora provisto de una tapa externa de refuerzo en la pared inferior. 5 The present patent application for the industrial invention relates to a washing machine tank provided with an external reinforcement cap on the bottom wall.

Como se sabe, la unidad de lavado de las máquinas lavadoras o combos secadora/lavadora comprenden un tambor básicamente cilíndrico diseñado para cargarse con ropa, que gira dentro de un tanque obtenidos por materiales de As is known, the washing unit of the washing machines or dryer / washing machine combos comprise a basically cylindrical drum designed to be loaded with clothes, which rotates inside a tank obtained by materials of

10 moldeo de plástico. 10 plastic molding.

Un tanque similar está generalmente provisto de una gran abertura para cargar la ropa, mientras que la pared inferior está provista de un orificio central que termina en una boquilla cilíndrica trasera, en la que el eje que sobresale de la pared inferior del tambor dentro del tanque se inserta exactamente, con la interposición de un A similar tank is generally provided with a large opening for loading clothes, while the bottom wall is provided with a central hole that ends in a rear cylindrical nozzle, in which the shaft protruding from the bottom wall of the drum inside the tank it is inserted exactly, with the interposition of a

15 soporte de apoyo. 15 support support.

En particular, el eje sobresale ligeramente fuera del tanque con el fin de acoplarse al motor eléctrico que tiene por objeto hacer que el tambor gire. In particular, the shaft protrudes slightly out of the tank in order to engage the electric motor which is intended to cause the drum to rotate.

20 En algunos casos, el motor eléctrico se monta en posición periférica con respecto a la pared inferior del tanque cilíndrico; en cuyo caso, se proporciona una correa de transmisión para garantizar el giro conjunto del eje del motor eléctrico y del eje del tambor, que están adecuadamente provistos de las poleas correspondientes. In some cases, the electric motor is mounted peripherally with respect to the bottom wall of the cylindrical tank; in which case, a transmission belt is provided to ensure the joint rotation of the electric motor shaft and the drum shaft, which are properly provided with the corresponding pulleys.

En otros casos, se utiliza la denominada la tecnología de "transmisión de directa", según la que el estator del motor In other cases, the so-called "direct transmission" technology is used, according to which the engine stator

25 eléctrico se monta en el centro de la pared inferior del tanque, de tal manera que el rotor está directamente estriado en el eje del tambor. 25 electric is mounted in the center of the bottom wall of the tank, such that the rotor is directly grooved in the axis of the drum.

Sin embargo, en ambos casos, la pared inferior del tanque de la máquina lavadora se debe caracterizar por una alta rigidez estructural con el fin de soportar, sin daños, una gran tensión mecánica inducida por la fuerza centrífuga However, in both cases, the bottom wall of the tank of the washing machine must be characterized by high structural rigidity in order to withstand, without damage, a large mechanical stress induced by centrifugal force

30 generada por la masa de la ropa contenida en el tambor giratorio. 30 generated by the mass of the clothes contained in the rotating drum.

Hasta ahora, dicha rigidez de la pared inferior se ha garantizado por medio de una red de nervaduras de refuerzo provistas fuera del tanque. Until now, said stiffness of the lower wall has been guaranteed by means of a network of reinforcement ribs provided outside the tank.

35 Cuando la presencia de dichas nervaduras no es suficiente, a la pared inferior del tanque se le da un perfil "omega" en el que algunas secciones de la pared sobresalen hacia el interior. 35 When the presence of such ribs is not enough, the bottom wall of the tank is given an "omega" profile in which some sections of the wall protrude inwards.

De hecho, una configuración de este tipo le proporciona a la pared inferior del tanque un momento de inercia elevado. In fact, such a configuration gives the lower wall of the tank a high moment of inertia.

Un examen cuidadoso del estado de la técnica ha identificado varios aspectos críticos. A careful examination of the state of the art has identified several critical aspects.

En particular, la formación de las nervaduras de refuerzo externas requiere un uso de gran cantidad de material de moldeo y de sofisticados moldes costosos, con un gran tiempo de moldeo, especialmente debido a la necesidad de In particular, the formation of external reinforcement ribs requires a use of a large amount of molding material and sophisticated expensive molds, with a large molding time, especially due to the need for

45 enfriar las nervaduras. 45 cool the ribs.

Al considerar que el mercado ofrece diferentes modelos de máquinas lavadoras en función de la velocidad de giro de los tambores (de 400 a 1.600 rpm.), queda claro que cada modelo de máquina lavadora debe estar provista de un tanque con las características específicas de resistencia mecánica de acuerdo con las diferentes tensiones Considering that the market offers different models of washing machines depending on the speed of rotation of the drums (from 400 to 1,600 rpm.), It is clear that each model of washing machine must be provided with a tank with the specific characteristics of resistance mechanics according to the different tensions

50 impuestas por el giro del tambor. 50 imposed by the rotation of the drum.

En vista de esto, un fabricante de tanques de máquinas lavadoras debe producir al menos cinco modelos diferentes de tanques, cada uno de ellos con diferente rigidez y resistencia de acuerdo con la velocidad de giro del aparato específico. In view of this, a manufacturer of washing machine tanks must produce at least five different tank models, each with different stiffness and resistance according to the speed of rotation of the specific apparatus.

55 Por otra parte, los tanques con pared inferior provista de un perfil "omega" se ven perjudicados por el hecho de que crean una turbulencia considerable en la masa de agua contenida en el interior del tanque, con el consiguiente alto nivel de ruido en el interior del aparato, la formación de espuma que requiere más agua de enjuague, y considerables residuos de lavado en las áreas cóncavas de la pared inferior que no se eliminan con el agua de 55 On the other hand, the tanks with lower wall provided with an "omega" profile are affected by the fact that they create a considerable turbulence in the mass of water contained inside the tank, with the consequent high level of noise in the inside the apparatus, the formation of foam that requires more rinse water, and considerable washing residues in the concave areas of the lower wall that are not removed with the water from

60 enjuague. 60 rinse.

Los residuos de lavado originan la denominada "biopelícula", que se considera perjudicial porque favorece la proliferación de bacterias y la consiguiente producción de malos olores. Washing residues originate the so-called "biofilm", which is considered harmful because it favors the proliferation of bacteria and the consequent production of bad odors.

65 El documento EP 1 528 136 describe un agregado para una máquina lavadora provisto de contenedor de espuma cilíndrico hueco de un material polimérico reforzado con fibra de vidrio adecuado para contener un tambor y una estructura de soporte de fundición de hierro incrustada en la pared inferior del contenedor de espuma. 65 EP 1 528 136 describes an aggregate for a washing machine provided with a hollow cylindrical foam container of a glass fiber reinforced polymeric material suitable for containing a drum and an iron cast support structure embedded in the bottom wall of the foam container

El propósito de la presente invención es encontrar una solución a los problemas antes mencionados de la técnica 5 anterior, con el fin de reducir los costes de producción y aumentar considerablemente la eficiencia técnico-funcional y la versatilidad. The purpose of the present invention is to find a solution to the aforementioned problems of the prior art, in order to reduce production costs and considerably increase technical-functional efficiency and versatility.

La idea de la invención de la presente invención consiste en una estructura compuesta especial de la pared inferior de un tanque de máquina lavadora. The idea of the invention of the present invention consists of a special composite structure of the bottom wall of a washing machine tank.

10 Más precisamente, el tanque de la invención está provisto de una pared inferior con la superficie lisa, tanto interna como externamente. More precisely, the tank of the invention is provided with a bottom wall with the smooth surface, both internally and externally.

Esto permite eliminar las nervaduras de refuerzo tradicionales que sobresalen hacia el exterior y las áreas elevadas This allows to eliminate the traditional reinforcement ribs that protrude outwards and raised areas

15 con las que sobresalen hacia el interior, del tipo usado en la pared inferior de los tanques provistos de un perfil "omega". 15 with those protruding inwards, of the type used on the bottom wall of the tanks provided with an "omega" profile.

En este caso, la tarea de proporcionar la necesaria rigidez y resistencia a la tensión mecánica está a cargo de una tapa circular diseñada para instalarse exactamente contra la cara externa de la pared inferior del tanque. In this case, the task of providing the necessary rigidity and resistance to mechanical stress is carried out by a circular cover designed to be installed exactly against the outer face of the bottom wall of the tank.

20 La tapa de plástico moldeada se proporciona preferiblemente de una pluralidad de radios, que de lo contrario se definen como travesaños. The molded plastic cover is preferably provided with a plurality of spokes, which are otherwise defined as crossbars.

Teniendo en cuenta que los radios de la tapa son huecos en su interior, parece evidente que, en cooperación con el Taking into account that the radii of the lid are hollow inside, it seems clear that, in cooperation with the

25 lado externo de la parte inferior plana del tanque de la invención, los radios originan una estructura en forma de caja con radios múltiples, que es efectivamente capaz de garantizar un momento de inercia considerable, tanto con respecto a la tensión de flexión y de torsión. On the outer side of the flat bottom of the tank of the invention, the spokes originate a box-shaped structure with multiple spokes, which is effectively capable of guaranteeing a considerable moment of inertia, both with respect to the bending and torsion stress .

Si se consideran individualmente, tanto la pared inferior lisa del tanque como la tapa tienen valores de inercia 30 modestos debido al espesor reducido. If considered individually, both the smooth bottom wall of the tank and the lid have modest inertia values due to the reduced thickness.

Su acoplamiento estable permite, sin embargo, crear la estructura en forma de caja efectivamente provista de características mecánicas compatibles con el correcto funcionamiento de la máquina lavadora. Its stable coupling allows, however, to create the box-shaped structure effectively provided with mechanical characteristics compatible with the correct operation of the washing machine.

35 Las ventajas de la invención parecen evidentes a partir de esta primera descripción. The advantages of the invention seem apparent from this first description.

En primer lugar, la presencia de una pared inferior perfectamente lisa asegura mejores características prácticas y económicas con referencia al moldeo, no sólo por la menor complejidad de los moldes, sino también por la menor cantidad de plástico utilizado. First, the presence of a perfectly smooth bottom wall ensures better practical and economical features with reference to molding, not only because of the lower complexity of the molds, but also because of the smaller amount of plastic used.

40 La eliminación de las secciones que sobresalen hacia el interior, que son típicas de los tanques con una parte inferior "omega" impide totalmente la formación de la indeseada biopelícula. 40 The elimination of the sections that protrude inwards, which are typical of tanks with an "omega" lower part totally prevents the formation of the unwanted biofilm.

La presencia de la pared inferior lisa del tanque de la invención genera una excelente distribución de la tensión The presence of the smooth bottom wall of the tank of the invention generates an excellent tension distribution

45 superficial que tiende a crearse en una forma totalmente no uniforme en las estructuras más complicadas de los tanques de pre-existentes, alterando las características mecánicas de los mismos tanques. This surface surface tends to be created in a totally non-uniform way in the more complicated structures of pre-existing tanks, altering the mechanical characteristics of the tanks themselves.

Por otra parte, la estructura compuesta de la pared inferior del tanque de la invención asegura características prácticas y económicas también con referencia a la producción de diferentes modelos de tanques de las máquinas On the other hand, the composite structure of the bottom wall of the tank of the invention ensures practical and economic characteristics also with reference to the production of different models of machine tanks

50 lavadoras con diferentes velocidades de giro. 50 washing machines with different turning speeds.

Como se ha mencionado anteriormente, de acuerdo con la técnica anterior, cada tipo específico de máquina lavadora requiere un tanque específico con propiedades específicas de rigidez y resistencia mecánica de acuerdo con la velocidad máxima de giro. As mentioned above, according to the prior art, each specific type of washing machine requires a specific tank with specific stiffness and mechanical strength properties according to the maximum speed of rotation.

55 A causa de la presente invención, todos los diferentes tipos de máquinas lavadoras utilizan el mismo tipo de tanques, contando que la tarea de garantizar el índice correcto de resistencia mecánica a la pared inferior del tanque está a cargo de la tapa con radios múltiples. Because of the present invention, all the different types of washing machines use the same type of tanks, counting that the task of guaranteeing the correct index of mechanical resistance to the bottom wall of the tank is in charge of the multi-radius lid.

60 En vista de lo anterior, un fabricante que hace uso de la tecnología de la invención producirá un único modelo de tanque, que se adaptará a cada modelo específico de máquina lavadora a través de una producción diversificada de tapas (de acuerdo con los diferentes espesores y perfil de las tapas). 60 In view of the above, a manufacturer making use of the technology of the invention will produce a single tank model, which will be adapted to each specific model of washing machine through a diversified production of covers (according to the different thicknesses and profile of the covers).

La necesidad de producir una gama diferente de tapas es, sin duda, más práctico y rentable en comparación con la 65 actual necesidad de producir una gama diferente de tanques. The need to produce a different range of caps is undoubtedly more practical and cost-effective compared to the current need to produce a different range of tanks.

Por último, cabe señalar que la favorable relación peso/rendimiento determinada en el tanque de la invención debido al montaje entre la pared inferior del tanque y la tapa contribuye a optimizar los apéndices tradicionales en el perímetro de los tanques de la máquina lavadoras. Finally, it should be noted that the favorable weight / performance ratio determined in the tank of the invention due to the mounting between the bottom wall of the tank and the lid contributes to optimizing the traditional appendages on the perimeter of the washing machine tanks.

Se hace referencia a los apéndices destinados a favorecer el montaje en la posición periférica del motor eléctrico que tiene por objeto hacer girar el tambor interno, y también a los apéndices utilizados para aplicar los medios de fijación utilizados para unir el tanque a la carcasa de soporte del aparato electrodoméstico durante las operaciones de envasado y de transporte (cuando el tanque, que se monta generalmente en elementos elásticos, se somete a choques peligrosos no deseados). Reference is made to the appendages intended to favor assembly in the peripheral position of the electric motor which is intended to rotate the internal drum, and also to the appendages used to apply the fixing means used to attach the tank to the support housing. of the home appliance during packaging and transport operations (when the tank, which is usually mounted on elastic elements, is subjected to unwanted dangerous shocks).

Para efectos de claridad, la descripción de la invención continúa con referencia a los dibujos adjuntos, que sólo tienen una finalidad ilustrativa, no limitativa, por lo que: For purposes of clarity, the description of the invention continues with reference to the accompanying drawings, which are for illustrative, non-limiting purposes only, whereby:

! La Figura 1 es una vista axonométrica del tanque de la invención, sin la tapa de refuerzo; ! Figure 1 is an axonometric view of the tank of the invention, without the reinforcement cap;

! La Figura 2 es una vista axonométrica externa de dicha tapa; ! Figure 2 is an external axonometric view of said cover;

! La Figura 3 es una vista axonométrica interna de dicha tapa; ! Figure 3 is an internal axonometric view of said cover;

! La Figura 4 es una vista axonométrica de los componentes antes mencionados uno frente al otro, sin ! Figure 4 is an axonometric view of the aforementioned components facing each other, without

fijación permanente; permanent fixation;

! La Figura 5 es una vista axonométrica del tanque en estado montado; ! Figure 5 is an axonometric view of the tank in the assembled state;

! La Figura 6 es una vista axonométrica en despiece del tanque, en la realización diseñada para asociarse ! Figure 6 is an exploded axonometric view of the tank, in the embodiment designed to associate

con el motor eléctrico correspondiente de acuerdo con la tecnología de transmisión directa. with the corresponding electric motor in accordance with direct transmission technology.

Con referencia a la Figura 1, el tanque de la invención (1) se compone generalmente de una estructura cilíndrica moldeada de plástico y diseñada para cerrarse frontalmente con una brida circular (no mostrada en las figuras adjuntas) provista de una abertura de grandes dimensiones utilizada para cargar ropa en el interior del tambor giratorio tradicional (no mostrado en las figuras adjuntas) alojado en el tanque. With reference to Figure 1, the tank of the invention (1) is generally composed of a cylindrical structure molded of plastic and designed to close frontally with a circular flange (not shown in the attached figures) provided with a large opening used for loading clothes inside the traditional rotating drum (not shown in the attached figures) housed in the tank.

Como se ha mencionado anteriormente, la peculiaridad del nuevo tanque (1) consiste en la presencia de una pared inferior lisa (2), sin nervaduras de refuerzo o áreas que se proyectan hacia el interior. As mentioned above, the peculiarity of the new tank (1) consists in the presence of a smooth bottom wall (2), without reinforcement ribs or areas projecting inwards.

La pared (2) está provista de un orificio central (2a) que recibe el eje del tambor ubicado en el tanque (1). The wall (2) is provided with a central hole (2a) that receives the drum shaft located in the tank (1).

Con referencia a las Figuras 2 y 3, el segundo componente del tanque (1) consiste en una especie de tapa circular With reference to Figures 2 and 3, the second tank component (1) consists of a kind of circular lid

(3) provista de una pluralidad de radios huecos en su interior (3a) obtenidos mediante el moldeo de materiales plásticos. (3) provided with a plurality of hollow radii inside (3a) obtained by molding plastic materials.

En particular, los radios (3a) sobresalen de una boquilla cilíndrica central (3b) y se unen en los extremos periféricos con el borde anular hueco en su interior (3c) de la tapa (3). In particular, the spokes (3a) protrude from a central cylindrical nozzle (3b) and are joined at the peripheral ends with the hollow annular edge inside (3c) of the cover (3).

Como se muestra en las Figuras 2 y 3, la boquilla central (3b) es considerablemente más larga que el espesor del borde perimetral anular (3c); debido a esto, los radios (3a) tienen una sección con una altura que se disminuye desde el centro hacia el área periférica. As shown in Figures 2 and 3, the central nozzle (3b) is considerably longer than the thickness of the annular perimeter edge (3c); due to this, the radii (3a) have a section with a height that decreases from the center to the peripheral area.

La boquilla cilíndrica (3b) está diseñada para alojar un soporte de apoyo de metal (SP) que recibe exactamente el eje del tambor después de pasar a través del orificio (2a) de la pared inferior (2) del tanque (1); se hace referencia a la Figura 2 que muestra el dicho soporte (SP) en una vista en despiece. The cylindrical nozzle (3b) is designed to accommodate a metal support bracket (SP) that receives exactly the axis of the drum after passing through the hole (2a) of the bottom wall (2) of the tank (1); Reference is made to Figure 2 which shows said support (SP) in an exploded view.

El soporte de apoyo (SP) es preferiblemente moldeado conjuntamente con la tapa (3). The support support (SP) is preferably molded together with the cover (3).

En cualquier caso, la tapa (3) se diseña para ser fijarse en la posición externa de la pared inferior plana (2) del tanque (1), con la parte cóncava orientada hacia la pared plana (2). In any case, the cover (3) is designed to be fixed in the external position of the flat bottom wall (2) of the tank (1), with the concave part facing the flat wall (2).

Con el fin de garantizar el acoplamiento mutuo entre los dos componentes, la tapa (3) tiene básicamente un diámetro idéntico a la pared inferior (2) del tanque (1) y la boquilla central (3b) de la tapa (3) se alinea perfectamente con el orificio (2a) obtenido en la pared inferior (2). In order to ensure mutual coupling between the two components, the cover (3) basically has a diameter identical to the bottom wall (2) of the tank (1) and the central nozzle (3b) of the cover (3) is aligned perfectly with the hole (2a) obtained in the bottom wall (2).

La cooperación entre la tapa (3) y la pared inferior (2) del tanque (1) permite obtener una estructura en forma de caja en la parte posterior del tanque, que se compone de una serie de compartimentos radiales (V1), cada uno de ellos está rodeado por uno de los radios (3a) de la tapa (3), y un compartimiento anular (V2) rodeado por el borde anular (3c) de la tapa (3). The cooperation between the lid (3) and the bottom wall (2) of the tank (1) allows to obtain a box-shaped structure on the back of the tank, which is composed of a series of radial compartments (V1), each of them is surrounded by one of the spokes (3a) of the cover (3), and an annular compartment (V2) surrounded by the annular edge (3c) of the cover (3).

La presencia de la estructura en forma de caja permite que la pared inferior (2) adquiera la resistencia necesaria para soportar sin daños las tensiones mecánicas transmitidas por los giros del eje del tambor lleno de ropa mojada. The presence of the box-shaped structure allows the bottom wall (2) to acquire the necessary strength to withstand without damage the mechanical stresses transmitted by the turns of the drum shaft filled with wet clothes.

La fijación estable de la tapa (3) contra la pared inferior (2) del tanque (1) se puede obtener de acuerdo con diferentes modos adecuados, tales como mediante pegamento, soldadura o tornillos. La tapa (3) puede también estar provista en el lado externo de apéndices básicamente cilíndricos (4, 5) obtenidos Stable fixing of the lid (3) against the bottom wall (2) of the tank (1) can be obtained according to different suitable modes, such as by glue, welding or screws. The cover (3) can also be provided on the external side of basically cylindrical appendages (4, 5) obtained

5 durante el mismo proceso y con el mismo material de moldeo utilizado en la tapa (3). 5 during the same process and with the same molding material used in the lid (3).

Los apéndices (4, 5) tienen una posición paralela a la boquilla central (3b) y están diseñados para favorecer la aplicación de los medios utilizados para garantizar la fijación estable de todo el tanque (1) a la estructura de apoyo de la máquina lavadora durante el envasado y el transporte. The appendages (4, 5) have a position parallel to the central nozzle (3b) and are designed to favor the application of the means used to ensure the stable fixation of the entire tank (1) to the support structure of the washing machine during packaging and transport.

Para ese fin, cada apéndice (4, 5) está frontalmente provisto de un orificio axial correspondiente (4a, 5a) utilizado para atornillar un tornillo correspondiente. To that end, each appendix (4, 5) is frontally provided with a corresponding axial hole (4a, 5a) used to screw a corresponding screw.

En particular, en la realización de la tapa (3) mostrada en las figuras adjuntas, un primer par opuesto (4) de 15 apéndices se proporciona a una altura superior sobresaliendo directamente del borde anular (3c), y un segundo par In particular, in the embodiment of the cover (3) shown in the attached figures, a first opposite pair (4) of 15 appendages is provided at a higher height directly protruding from the annular edge (3c), and a second pair

(5) de apéndices se proporciona a una altura inferior sobresaliendo en la parte delantera de los correspondientes brazos pequeñas huecos (5b) que sobresalen radialmente desde el borde anular (3c). (5) of appendages is provided at a lower height by protruding at the front of the corresponding small hollow arms (5b) that project radially from the annular edge (3c).

Finalmente, un tercer par (6) de apéndices similares se proporciona entre los dos apéndices del segundo par (6), Finally, a third pair (6) of similar appendages is provided between the two appendages of the second pair (6),

20 que sobresale en la parte delantera de los correspondientes brazos pequeñas huecos (6b), diseñado para ser utilizado en la fijación del motor eléctrico que impulsa en giro al eje del tambor ubicado dentro de la boquilla cilíndrica (3b) de la tapa (3) por medio de una correa de transmisión. 20 protruding at the front of the corresponding small hollow arms (6b), designed to be used in the fixing of the electric motor that drives the drum shaft rotated inside the cylindrical nozzle (3b) of the cover (3) by means of a transmission belt.

También los apéndices (6) del tercer par están provistos en la parte delantera de orificios axiales (6a) para fijar 25 adecuadamente los tornillos. Also the appendages (6) of the third pair are provided at the front of axial holes (6a) to properly fix the screws.

Los brazos radiales pequeños (5a, 6a) se proporcionan con sus correspondientes cavidades internas diseñadas para cubrirse exactamente, cuando la tapa (3) se acopla con la pared inferior (2) del tanque (1), por correspondientes orejeras (50a, 60a) que sobresalen del borde de la pared inferior (2) del tanque (1) para generar las The small radial arms (5a, 6a) are provided with their corresponding internal cavities designed to cover exactly, when the cover (3) is coupled with the bottom wall (2) of the tank (1), by corresponding earmuffs (50a, 60a) protruding from the edge of the bottom wall (2) of the tank (1) to generate the

30 correspondientes estructuras en forma de caja. 30 corresponding box-shaped structures.

De esta manera, también los brazos pequeños (5a, 6a) proporcionan ventajosamente alta resistencia mecánica durante la operación. In this way, the small arms (5a, 6a) also advantageously provide high mechanical resistance during operation.

35 Finalmente, la figura 6 muestra la realización de la tapa (3) diseñada para el montaje del motor eléctrico de acuerdo con la tecnología de transmisión directa. Finally, Figure 6 shows the embodiment of the cover (3) designed for mounting the electric motor in accordance with direct transmission technology.

En tal caso, la superficie externa de la tapa (3) está provista de tres orificios de fijación (3d) para el estator (ST), con un rotor correspondiente (RT) que gira fuera de ella estriado en el eje del tambor que en parte sobresale de la 40 boquilla cilíndrica (3b) de la tapa (3). In such a case, the outer surface of the cover (3) is provided with three fixing holes (3d) for the stator (ST), with a corresponding rotor (RT) that rotates out of it in the groove of the drum which in part protrudes from the cylindrical nozzle (3b) of the cover (3).

Claims (11)

REIVINDICACIONES 1. Tanque de máquina lavadora que comprende 1. Washing machine tank comprising ! una estructura básicamente cilíndrica (1) obtenida mediante el moldeo de materiales plásticos, diseñada para alojar un tambor de metal giratorio, estando dicha estructura cilíndrica (1) provista de una pared inferior lisa (2) con un orificio central (2a), y ! a basically cylindrical structure (1) obtained by molding plastic materials, designed to house a rotating metal drum, said cylindrical structure (1) being provided with a smooth bottom wall (2) with a central hole (2a), and ! una tapa (3) exactamente acoplada y permanentemente fijada a dicha pared inferior (2) de la estructura cilíndrica (1), teniendo dicha tapa (3) una boquilla cilíndrica (3b) en posición central diseñada para alinearse perfectamente con el orificio central (2a) de la pared inferior ( 2), ! a cover (3) exactly coupled and permanently fixed to said lower wall (2) of the cylindrical structure (1), said cover (3) having a cylindrical nozzle (3b) in a central position designed to align perfectly with the central hole (2a ) of the bottom wall (2), caracterizado por que characterized by that dicha tapa (3) se obtiene mediante el moldeo de materiales plásticos, fijándose dicha tapa (3) en la posición externa, contra dicha pared inferior (2) de la estructura cilíndrica (1) por medio de pegamento, soldadura o tornillos, teniendo dicha tapa (3) un lado cóncavo que está orientado hacia la pared inferior lisa (2) de dicha estructura cilíndrica (1). said cover (3) is obtained by molding plastic materials, said cover (3) being fixed in the external position, against said lower wall (2) of the cylindrical structure (1) by means of glue, solder or screws, said cover (3) having a concave side facing the wall smooth bottom (2) of said cylindrical structure (1).
2.2.
Tanque de máquina lavadora de acuerdo con la reivindicación 1, caracterizado por que la boquilla (3b) de la tapa (3) aloja un soporte de apoyo de metal (SP).  Washing machine tank according to claim 1, characterized in that the nozzle (3b) of the lid (3) houses a metal support bracket (SP).
3. 3.
Tanque de máquina lavadora de acuerdo con la reivindicación 1 ó 2, caracterizado por que la tapa (3) está provista de una serie de radios (3a) que sobresalen de la boquilla central (3b) con cavidades correspondientes orientadas hacia la pared inferior (2) del tanque (1). Washing machine tank according to claim 1 or 2, characterized in that the cover (3) is provided with a series of spokes (3a) protruding from the central nozzle (3b) with corresponding cavities oriented towards the bottom wall (2 ) of the tank (1).
4.Four.
Tanque de máquina lavadora de acuerdo con la reivindicación 3, caracterizado por que los radios (3a) de la tapa  Washing machine tank according to claim 3, characterized in that the spokes (3a) of the lid
(3) se acoplan en los extremos con un borde anular (3c) con una cavidad orientada hacia la pared inferior (2) de la estructura cilíndrica (1). (3) are coupled at the ends with an annular edge (3c) with a cavity facing the bottom wall (2) of the cylindrical structure (1).
5.5.
Tanque de máquina lavadora de acuerdo con una o más de las reivindicaciones anteriores, caracterizado por que la boquilla central (3b) de la tapa (3) es más larga que la altura del borde anular (3c) y, en consecuencia, los radios (3a) tienen una altura decreciente desde el centro hacia el área periférica.  Washing machine tank according to one or more of the preceding claims, characterized in that the central nozzle (3b) of the lid (3) is longer than the height of the annular edge (3c) and, consequently, the spokes ( 3a) have a decreasing height from the center to the peripheral area.
6.6.
Tanque de máquina lavadora de acuerdo con una o más de las reivindicaciones anteriores, caracterizado por que el borde anular (3c) de la tapa (3) está provisto de apéndices (4, 5, 6) que se utilizan para montar los medios de fijación a la estructura de apoyo de la máquina lavadora y al motor eléctrico.  Washing machine tank according to one or more of the preceding claims, characterized in that the annular edge (3c) of the lid (3) is provided with appendages (4, 5, 6) that are used to mount the fixing means to the support structure of the washing machine and the electric motor.
7.7.
Tanque de máquina lavadora de acuerdo con la reivindicación 5, caracterizado por que los apéndices (4, 5, 6) tienen una estructura básicamente cilíndrica paralela a la boquilla central (3b) de la tapa (3) y están provistos de orificios axiales relevantes (4a, 5a, 6a) que se utilizan para insertar tornillos u otros medios de fijación similares.  Washing machine tank according to claim 5, characterized in that the appendages (4, 5, 6) have a basically cylindrical structure parallel to the central nozzle (3b) of the lid (3) and are provided with relevant axial holes ( 4a, 5a, 6a) which are used to insert screws or other similar fixing means.
8.8.
Tanque de máquina lavadora de acuerdo con una o más de las reivindicaciones anteriores, caracterizado por que un primer par opuesto (4) de los apéndices diseñado para recibir los medios de fijación de la estructura de apoyo de la máquina lavadora sobresale directamente desde el borde anular (3c) de la tapa (3) y un segundo par opuesto (5) de los apéndices sobresale a una altura inferior sobresaliendo en la parte delantera de los correspondientes brazos pequeños (5b) que sobresalen radialmente desde el borde anular (3c).  Washing machine tank according to one or more of the preceding claims, characterized in that a first opposite pair (4) of the appendages designed to receive the fixing means of the support structure of the washing machine protrudes directly from the annular edge (3c) of the cover (3) and a second opposite pair (5) of the appendages protrude at a lower height, protruding at the front of the corresponding small arms (5b) projecting radially from the annular edge (3c).
9.9.
Tanque de máquina lavadora de acuerdo con una o más de las reivindicaciones anteriores, caracterizado por que los apéndices (6) diseñados para favorecer el montaje de un motor eléctrico sobresalen de los correspondientes brazos pequeños (6b) que sobresalen radialmente desde el borde anular (3c) de la tapa (3).  Washing machine tank according to one or more of the preceding claims, characterized in that the appendages (6) designed to favor the assembly of an electric motor protrude from the corresponding small arms (6b) that project radially from the annular edge (3c) ) of the cover (3).
10.10.
Tanque de máquina lavadora de acuerdo con una o más de las reivindicaciones anteriores, caracterizado por que los brazos radiales pequeños (5a, 6a) que sobresalen de la tapa (3) cuentan con cavidades internas orientadas hacia la pared inferior (2) de la estructura cilíndrica (1) del tanque, diseñadas para acoplarse exactamente contra las orejas correspondientes (50a, 60a) que sobresalen del borde de la pared inferior (2).  Washing machine tank according to one or more of the preceding claims, characterized in that the small radial arms (5a, 6a) protruding from the lid (3) have internal cavities oriented towards the bottom wall (2) of the structure cylindrical (1) of the tank, designed to fit exactly against the corresponding ears (50a, 60a) that protrude from the edge of the bottom wall (2).
11.eleven.
Tanque de máquina lavadora de acuerdo con una o más de las reivindicaciones anteriores, caracterizado por que la tapa (3) está provista en la parte delantera de orificios (3d) para el montaje directo de un estator (ST) de un motor eléctrico, con el rotor (RT ) estriado en el eje del tambor que sobresale ligeramente de la boquilla (3b).  Washing machine tank according to one or more of the preceding claims, characterized in that the cover (3) is provided at the front of holes (3d) for the direct mounting of a stator (ST) of an electric motor, with the rotor (RT) splined on the drum shaft slightly protruding from the nozzle (3b).
ES08720243T 2007-02-21 2008-02-15 WASHING MACHINE TANK PROVIDED WITH AN EXTERNAL REINFORCEMENT COAT ON THE LOWER WALL. Active ES2375587T3 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
ITAN20070008 ITAN20070008A1 (en) 2007-02-21 2007-02-21 NEW BATHTUB IN PLASTIC MATERIAL AND STRUCTURE BOX FOR WASHING MACHINES AND WASHING MACHINE WITH DIRECT MOTOR
ITAN20070008 2007-02-21
ITAN20070009 2007-02-21
ITAN20070009 ITAN20070009A1 (en) 2007-02-21 2007-02-21 WASHING MACHINE AND WASHING MACHINE WITH FRONTAL LOADING WITH TRADITIONAL TRANSMISSION OR "DIRECT DRIVE"
PCT/IT2008/000098 WO2008102396A2 (en) 2007-02-21 2008-02-15 Washing machine tank provided with external reinforcing cap on bottom wall

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ES2375587T3 true ES2375587T3 (en) 2012-03-02

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ES08720243T Active ES2375587T3 (en) 2007-02-21 2008-02-15 WASHING MACHINE TANK PROVIDED WITH AN EXTERNAL REINFORCEMENT COAT ON THE LOWER WALL.

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US (1) US20100287995A1 (en)
EP (1) EP2129823B1 (en)
JP (1) JP2010532671A (en)
KR (1) KR101578776B1 (en)
CN (1) CN101631907B (en)
AT (1) ATE529560T1 (en)
AU (1) AU2008218504A1 (en)
BR (1) BRPI0810058A2 (en)
CA (1) CA2677886A1 (en)
EG (1) EG25143A (en)
ES (1) ES2375587T3 (en)
HR (1) HRP20120034T1 (en)
MX (1) MX2009008949A (en)
PL (1) PL2129823T3 (en)
RU (1) RU2454492C2 (en)
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WO (1) WO2008102396A2 (en)

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RU2009135025A (en) 2011-03-27
JP2010532671A (en) 2010-10-14
CN101631907A (en) 2010-01-20
US20100287995A1 (en) 2010-11-18
EP2129823B1 (en) 2011-10-19
ATE529560T1 (en) 2011-11-15
MX2009008949A (en) 2009-08-31
KR101578776B1 (en) 2015-12-28
WO2008102396A3 (en) 2008-11-06
PL2129823T3 (en) 2012-03-30
EP2129823A2 (en) 2009-12-09
CA2677886A1 (en) 2008-08-28
WO2008102396A2 (en) 2008-08-28
RU2454492C2 (en) 2012-06-27
HRP20120034T1 (en) 2012-02-29
SI2129823T1 (en) 2012-02-29
CN101631907B (en) 2011-11-23
AU2008218504A1 (en) 2008-08-28
KR20090111344A (en) 2009-10-26
EG25143A (en) 2011-09-25
BRPI0810058A2 (en) 2019-03-06

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