EP2177657B1 - Tambour pour un lave-linge - Google Patents

Tambour pour un lave-linge Download PDF

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Publication number
EP2177657B1
EP2177657B1 EP08018121A EP08018121A EP2177657B1 EP 2177657 B1 EP2177657 B1 EP 2177657B1 EP 08018121 A EP08018121 A EP 08018121A EP 08018121 A EP08018121 A EP 08018121A EP 2177657 B1 EP2177657 B1 EP 2177657B1
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EP
European Patent Office
Prior art keywords
drum
segments
approximately
casing
length
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.)
Active
Application number
EP08018121A
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German (de)
English (en)
Other versions
EP2177657A1 (fr
Inventor
Alfons Eblenkamp
Britta Hölscher
Werner Hunke
Felix Maßmann
Marco Rüchel
Marcel Zielke
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Priority to ES08018121T priority Critical patent/ES2399368T3/es
Priority to EP08018121A priority patent/EP2177657B1/fr
Publication of EP2177657A1 publication Critical patent/EP2177657A1/fr
Application granted granted Critical
Publication of EP2177657B1 publication Critical patent/EP2177657B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

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

Definitions

  • the invention relates to a drum for a washing machine with a tub, in which the drum can be rotatably mounted on a horizontal or inclined axis, comprising a cylindrical shell, which is bounded by an end wall, wherein the jacket has a structure of directed towards the drum interior vaults, which consists of individual curved segments comprises.
  • the laundry For washing laundry in a drum washing machine, the laundry is washed with water with the addition of detergent with strong drum motion.
  • the drum is hereby perforated, so that the water in the tub with the laundry, which is located in the drum, comes into contact.
  • To improve the fürbefuchtung scooping ribs are mounted in the drum, which lift the water from the lower portion of the tub upwards and distribute from there over the laundry.
  • the bulges are in this case uniformly structured, so that the laundry movement is caused by driving ribs which are arranged distributed on the inside of the drum shell over the circumference.
  • the laundry items are raised only in the circumferential direction until it comes to detachment from the drum shell and thus the so-called laundry case. In this case, it may happen that the items of laundry curl together in a ring, so that a rolling movement with less mechanical action or mixing with the washing liquid occurs.
  • the DE 10 2005 026 175 A1 discloses a washing machine drum having ellipsoidal bulges in the shell. However, the bulges are evenly arranged on the lateral surface.
  • a similar drum is from the DE 196 03 710 A1 known.
  • the curved segments have a round or polygonal base.
  • the DE 297 05 226 U1 discloses a washing machine drum in which the through-holes are arranged in polygonal embossments for improved removal of washing liquid.
  • the DE 41 31 005 A1 discloses a drying drum in which the ribs are formed as curvatures directed towards the interior of the drum.
  • the DE 197 31 666 A1 discloses a drying drum whose jacket is made wavy, so that there are circumferential grooves. The structure of the corrugations is carried out uniformly.
  • the invention is therefore based on the object to provide a drum with buckles, in which the mixing of the laundry with the washing liquid and the mechanical action is improved.
  • the main advantage of the drum according to the invention is that an improved movement of the laundry within the drum is achieved when it is arranged approximately horizontally or inclined and rotated at a normal speed for the washing phase, for example 20 to 70 rpm. Furthermore, the conservation of the laundry items is maintained, so that premature wear or damage can be avoided.
  • the drum according to the invention in particular the drum casing, comprises a structure of curvatures directed towards the interior of the drum, which consists of individual curved segments.
  • the size of the segments is designed differently such that the structure of the curved segments on the shell or on the surface of the shell forms a curved pattern.
  • the curved pattern causes partially different flows of the washing liquid.
  • sliding laundry items along the drum shell are moved somewhat in the axial direction or in the direction of a lateral edge of the drum shell, so that the items of laundry are moved even more strongly within the drum.
  • the pattern is formed at least S-shaped curved.
  • the curved segments are formed of polygons which abut each other with their edge contours, wherein the segments have a length and a width of about 1 to 5 cm. This results in a nearly coherent arch structure, which can thereby exert particularly effective movement impulses on the laundry.
  • the corners of the polygons, in this example honeycomb arranged 6-corner, can be rounded, so that sharp-edged transitions are avoided.
  • the roundings in this embodiment have a radius in the range of 2 to 10 mm.
  • the height of the bulges is chosen so that they have about the same height and that the height is about 0.1 to 2 mm.
  • the smaller segments are more curved in relation to their area than the larger segments, based on the base area of the respective individual segment.
  • a partially different washing mechanism is effected, whereby the movement impulses caused by the vault structure are enhanced.
  • the bulges each have a height which is approximately proportional to the length and width of the surfaces, wherein the height corresponds to about 1/500 to 1/20 of the width or the length of the respective segment. This can be advantageous to avoid exaggerated violent movement impulses and to achieve a gentle laundry treatment.
  • the segments In order to provide the segments of different sizes, it is expedient for the segments to have at least approximately the same length in the direction of the circumference of the drum and to have a different width in the transverse direction.
  • the size profile and the arrangement are chosen so that the S-shaped and / or multiple S-shaped, curved pattern is formed on the lateral surface in the circumferential direction of the drum shell.
  • the segments in the direction of the drum circumference each have a different length, so that the curved or S-shaped pattern is correspondingly formed transversely to the circumferential direction of the jacket.
  • the undulating pattern includes transverse and longitudinal portions, thereby increasing the inhomogeneity of the structure formed by the segments.
  • the circumferentially extending S-shaped pattern starting from the approximate centerline of the shell, has a first vertex toward the first end wall and a second vertex toward the second end wall. This ensures that the wave-shaped structure is apparent at least almost over the entire width of the drum shell.
  • the drum shell is divided into at least three sections, wherein in each section in each case an S-shaped pattern of curved segments is arranged.
  • driving ribs In the areas between the individual sections can be mounted driving ribs, which lift the laundry items as the drum is rotated, so that they peel off again in the upper third and fall down.
  • the driver ribs can be very be kept flat, preferably in the range of about 1 to 2 cm with a drum diameter of 45 to 55 cm.
  • the curved or S-shaped pattern is formed on the jacket such that a curved or S-shaped web results without buckling or arch structure.
  • a curved or S-shaped web results without buckling or arch structure.
  • an improved guidance of the laundry items along the curved or S-shaped, smooth web is achieved.
  • the web has approximately the width corresponding to the length of a segment in the circumferential direction.
  • a segment width is kept free of bulges, wherein in the S-shaped embodiment of the web starts approximately in the central region or equatorial region of the shell and ends after his arcuate deflections back in the equatorial region.
  • the width of the web varies, wherein the width of the web at the narrowest point in the central region of the drum portion or the drum circumference approximately the length of a segment and at the widest point in the apex region of the S-shaped or at the ends of the web approximately the length of 1.5 to 2 times a segment corresponds. That is, starting in the equatorial region of the shell of the web is designed to be 1.5 to 2 times wider than in the center region of the web, wherein the center of the web, based on the circumference of the drum shell, is also located in the equatorial region. The arcuate deflections of the web deviate once in the direction of the first end wall and once in the direction of the second end wall of the drum from the equatorial line.
  • the web is provided with additional directed towards the drum interior curved surfaces, wherein the curved surfaces each have a length in the circumferential direction of the shell of about 0.4 to 0.8 times the length of a nearest segment and a width of about the 0.4 to 0.8 times the width of a nearest segment. This further improves the guidance of the laundry items sliding along the jacket in the axial direction or in the direction of the end walls.
  • the holes between the segments or in the edge contour of the segments are arranged.
  • the holes preferably have a diameter between about 1.8 to 3 mm.
  • the drum shell with holes for the flow of washing liquid and to arrange the holes in the corners of the edge contour of the segments.
  • the diameter of the holes in the range of 1.8 to 3 mm, preferably 2 to 2.5 mm.
  • Fig. 1 is a purely schematic representation of a washing machine 1, shown with a tub 2.
  • the position and direction information refer to the operational installation position of the washing machine 1.
  • Within the tub 2 is a rotatably mounted on a horizontal or inclined axis 27 and driven by an electric motor 13 Drum 3 arranged in the tub 2 and in the Drum 3 located laundry items 8 moves.
  • the drum 3 is made in the present embodiment of stainless steel and with a plurality of holes 21 (FIG. Fig. 2 ) provided for the flooding.
  • the housing 4 has a loading opening 9, via which the interior of the drum 3 can be reached through the sealing sleeve 6.
  • the loading opening 9 can be closed by means of the door 5.
  • a radiator (not shown) is arranged in the lower region of the tub 2.
  • an inlet valve 15 is sketched, which controls the entry of the water from the supply network.
  • the water is passed through the connecting pipe 14 into the tub 2, wherein in the dispenser 11 entered detergent is flushed into the tub 2.
  • a drain device 12 is arranged, which brings out the spent washing liquid or the rinse water 7 from the tub 2 to the drain line 16, which usually opens into a sewer.
  • the control device 17 controls the water inlet 15, the activity of the drain device 12 and the drive motor 13, which is energized via the power unit or a frequency converter 18.
  • Fig. 2 the drum 3 is shown, which consists of a jacket 19 and two opposite end walls 20, wherein here for better illustration of the inside of the jacket 19, the front end face is removed.
  • On the inside 19a of the shell 19 are distributed over the circumference several scooping ribs 21, in this example, three, attached.
  • the scoop ribs 21 are formed in profile V-shaped or parabolic.
  • the drum 3 is perforated with the holes 25 (FIG. Fig. 3 ) are disposed between the domed segments 22 and have a diameter of about 1.8 to 2.5 mm, preferably 2 mm.
  • the drum shell 19 is here divided into three sections, which are divided by the scoop ribs 21.
  • a structure of the segments 22 is formed such that a curved pattern, in this example forms an S-shaped pattern on the jacket 19.
  • the pattern is in this case designed such that on the drum shell 19 a curved or S-shaped smooth web 24 extends in the circumferential direction U or which extends within the portion between the driving ribs 21. On the lateral surface thus a wavy structure is shown.
  • the web 24 is not provided here with bulges or with curved segments 22.
  • the web 24 is embedded laterally by the segments 22, so that it does not hit one of the frontal edges 19b, 19c.
  • the segments 22 are angular, in this example 6-square executed with their contours 22a (FIG. Fig. 4a ) lie against each other and form a honeycomb arrangement.
  • Fig. 3 the jacket 19 is shown as a settlement.
  • the jacket 19 is divided in the circumferential direction U into a plurality, in this example three, sections 26, which are provided with the structure of arched, polygonal, here hexagonal segments 22.
  • the segments 22 are formed differently in size with respect to their surface, such that a curved, here an S-shaped pattern of the structure results.
  • a curved or S-shaped web 24 is formed, which crosses the equatorial line EQ due to its S-shape or is oriented thereon.
  • the holes 25 are in this case arranged in the corners of the segments 22, wherein the smooth, non-arched web 24 has no holes.
  • Fig. 4a is a section 26 of the jacket 19 ( Fig. 2 ) in detail. It can be seen here that all the segments 22 have approximately the same length L, wherein they differ with respect to their width B, such that a curved, here an S-shaped pattern of the structure results, wherein additionally an S-shaped web 24th is formed without segments and without bulges.
  • the drum shell 19 is provided with holes 25 for the passage of washing liquid, the holes 25 being arranged in the areas between the segments 22 which are not curved. At the in Fig. 4a the example shown are the holes 25 in the Corner points of the edge contour 22a of the segments 22 are arranged.
  • the jacket 19 is shown in the sectional plane AA.
  • the segments 22 have a curvature 23 towards the interior of the drum or are arched, wherein they are arranged with their edge contours 22a at a distance R from the respectively adjacent segment 22.
  • the bulges 23 have approximately the same height h, the height h being approximately 0.1 to 2 mm. It is alternatively possible to vary the height h depending on the size, ie of the length L and / or width B of the segments 22.
  • the web 24 has no curvature. The web 24 in this case has a width of about one segment 22, as it undistorted or how it represents in its length L.
  • Fig. 5a an embodiment of the drum 3 is sketched, in which the jacket 19 is provided with a wider, S-shaped web 24, as in the example according to FIG Fig. 4a the case is.
  • the web 22 is made different in width in its course in the circumferential direction U, wherein the width B of the web 24 at the narrowest point in the central region of the drum portion 26 or the drum circumference approximately the length of a segment 22 and at the widest point in the apex region of the S-shaped or at the ends of the web 24 approximately the length of 1.5 to 2 times a segment 22 corresponds.
  • the web 22 is provided with additional to the drum interior directed curved surfaces 27, wherein the curved surfaces 27 each have a length in the circumferential direction U of the shell 19 of about 0.4 to 0.8 times the length of a proximal segment 22 and a width of about 0.4 to 0.8 times the width of a nearest segment 22.
  • the holes 25 are arranged here in the corners of the edge contours 22a of the segments 22, the web 24 with the smaller curvatures 27 is not provided with holes or hole-free.
  • the smooth area of the web 24 and the curved segments 27 can be seen in the web 24.
  • Fig. 6 which does not fall under the present invention, shows an embodiment of the drum shell 19 in an unwound representation, in which the segments 22 are formed differently such that a curved or S-shaped structure 28 results, which extends along the entire shell circumference. In this case, no vault-free web is formed, so that only the distortion of the segments 22 forms the curved or S-shaped pattern 28.
  • Fig. 7 shows an embodiment with a buckle-free web 24 in the middle third of the drum shell 19.
  • the S-shape is designed so that a single S extends over the entire shell circumference.
  • the already mentioned embodiments according to Fig. 5a and 5b with differently wide web 24 and / or with additional curved surfaces 27 (FIG. Fig. 5 ) in the web 24 can also be carried out so that a single S extends over the entire circumference of the shell.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Claims (14)

  1. Tambour (3) pour une machine à laver (1) avec une cuve de lessivage (2) dans laquelle le tambour (3) peut être supporté en rotation par le biais d'un axe (7) horizontal ou incliné, comprenant une enveloppe (19) de forme cylindrique qui est limitée au moyen d'une paroi frontale (20), l'enveloppe (19) comprenant une structure qui est constituée de bombements dirigés vers l'intérieur du tambour et qui est composée de segments (22) bombés individuels, la dimension des segments (22) étant constituée de façon différente de sorte que la structure constituée des segments (22) bombés forme sur l'enveloppe (19) un motif courbe incurvé à peu près en forme de S,
    caractérisé en ce que
    le motif courbe à peu près en forme de S sur l'enveloppe (19) est constitué de sorte qu'il en résulte une nervure (24) courbe à peu près en forme de S sans bombements ou sans structure bombée.
  2. Tambour selon la revendication 1,
    caractérisé en ce que
    les segments (22) présentent dans le sens circonférentiel (U) de l'enveloppe (19) respectivement au moins approximativement la même longueur (L) et présentent dans le sens transversal (A) respectivement une longueur différente, de sorte que le motif en forme de S est constitué dans le sens circonférentiel (U) de l'enveloppe (19).
  3. Tambour selon la revendication 1,
    caractérisé en ce que les segments (22) présentent dans le sens circonférentiel (U) de l'enveloppe (19) respectivement une longueur différente de sorte que le motif courbe à peu près en forme de S est constitué de façon transversale (A) en conséquence au sens circonférentiel (U) de l'enveloppe (19).
  4. Tambour selon la revendication 1,
    caractérisé en ce que,
    en partant de la ligne médiane (EQ) approximative de l'enveloppe (19) périphérique dans le sens circonférentiel (U), le motif en forme de S s'étendant dans le sens circonférentiel (U) présente un premier sommet dans la direction du premier bord latéral (19a) et un deuxième sommet dans la direction du deuxième bord latéral (19b) opposé.
  5. Tambour selon une des revendications 1 à 4,
    caractérisé en ce que
    l'enveloppe (19) de tambour est divisée en au moins trois tronçons (26), et en ce que, dans chaque tronçon (26), il est disposé respectivement un motif en forme de S constitué de segments (22) bombés.
  6. Tambour selon la revendication 1,
    caractérisé en ce que
    les segments (22) bombés sont constitués de polygones qui sont adjacents les uns aux autres par leurs contours marginaux, directement ou avec une distance (R), les segments (22) présentant une longueur (L) et une largeur (B) d'environ 1 à 5 cm.
  7. Tambour selon la revendication 1,
    caractérisé en ce que
    les bombements (23) présentent à peu près la même hauteur (h), et en ce que la hauteur (h) est d'environ 0,1 à 2 mm.
  8. Tambour selon la revendication 1,
    caractérisé en ce que
    les bombements (23) présentent respectivement une hauteur (h) qui est à peu près proportionnelle à la longueur (L) et à la largeur (B) des segments (22), la hauteur correspondant à peu près à 1/500 à 1/20 de la largeur (B) ou de la longueur (L) du segment (22) respectif.
  9. Tambour selon la revendication 1,
    caractérisé en ce que
    la nervure (24) présente à peu près la largeur (B) qui correspond à la longueur (L) d'un segment (22) dans le sens circonférentiel (U).
  10. Tambour selon la revendication 1,
    caractérisé en ce que
    la largeur de la nervure (24) varie, la largeur de la nervure (24) à l'emplacement le plus étroit dans la zone médiane du tronçon (26) de tambour ou de la circonférence de tambour (U) correspondant approximativement à la longueur d'un segment (22) et, à l'emplacement le plus large dans la zone de sommet ou respectivement aux extrémités de la nervure (24) en forme de S, correspondant approximativement à la longueur (L) de 1,5 à 2 fois un segment (22).
  11. Tambour selon la revendication 9,
    caractérisé en ce que
    la nervure (24) est munie de surfaces (27) bombées supplémentaires dirigées vers l'intérieur du tambour, les surfaces (27) bombées présentant, dans le sens circonférentiel (U) de l'enveloppe (19), respectivement une longueur d'à peu près 0,4 à 0,8 fois la longueur (L) d'un segment (22) le plus proche et une largeur (B) d'à peu près 0,4 à 0,8 fois la largeur (B) du segment (22) le plus proche.
  12. Tambour selon la revendication 1,
    caractérisé en ce que
    l'enveloppe (19) de tambour est munie de trous (25) destinés à être parcourus par du liquide de lavage (7), les trous (25) étant disposés entre les segments (22) ou respectivement dans le contour marginal (22a) des segments (22).
  13. Tambour selon la revendication 6,
    caractérisé en ce que
    l'enveloppe (19) de tambour est munie de trous (25) destinés à être parcourus par du liquide de lavage (7), les trous (25) étant disposés dans les points d'angle du contour marginal (22a) des segments (22).
  14. Tambour selon une des revendications 9 à 11,
    caractérisé en ce que
    la nervure (24) est dépourvue de trous.
EP08018121A 2008-10-16 2008-10-16 Tambour pour un lave-linge Active EP2177657B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES08018121T ES2399368T3 (es) 2008-10-16 2008-10-16 Tambor para una máquina lavadora
EP08018121A EP2177657B1 (fr) 2008-10-16 2008-10-16 Tambour pour un lave-linge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08018121A EP2177657B1 (fr) 2008-10-16 2008-10-16 Tambour pour un lave-linge

Publications (2)

Publication Number Publication Date
EP2177657A1 EP2177657A1 (fr) 2010-04-21
EP2177657B1 true EP2177657B1 (fr) 2013-01-09

Family

ID=40456274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08018121A Active EP2177657B1 (fr) 2008-10-16 2008-10-16 Tambour pour un lave-linge

Country Status (2)

Country Link
EP (1) EP2177657B1 (fr)
ES (1) ES2399368T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2474659B1 (fr) * 2011-01-11 2013-01-09 Miele & Cie. KG Tambour doté d'une structure bombée pour un lave-linge
DE102012204560A1 (de) * 2012-03-22 2013-09-26 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel mit einem Strukturmuster sowie Wäschebehandlungsmaschine mit solcher Wäschetrommel
DE102013201186A1 (de) * 2013-01-25 2014-07-31 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Wäschebehandlungsmaschine
KR102396321B1 (ko) * 2016-07-12 2022-05-10 삼성전자주식회사 세탁기
DE102020102443A1 (de) * 2020-01-31 2021-08-05 Miele & Cie. Kg Waschmaschine und Verfahren zum Betrieb einer Waschmaschine
DE102021200987A1 (de) * 2021-02-03 2022-08-04 BSH Hausgeräte GmbH Verfahren zum Herstellen einer Wäschetrommel mit lagegenauer Positionierung einer Prägestruktur und Flutlöchern zueinander, sowie Wäschetrommel
DE102021122654A1 (de) 2021-09-01 2023-03-02 Miele & Cie. Kg Trommel für einen Wäschetrockner und Wäschetrockner

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4131005A1 (de) * 1990-12-04 1992-06-11 Bauknecht Hausgeraete Haushaltgeraet, z. b. trockner
DE19603710A1 (de) * 1996-02-02 1997-08-07 Aeg Hausgeraete Gmbh Wasserführendes Haushaltsgerät, z. B. Waschtrockner oder Waschmaschine
EP0935687B1 (fr) 1996-11-02 2001-06-13 Miele & Cie. GmbH & Co. Lave-linge a tambour
DE29705226U1 (de) * 1997-03-22 1998-07-23 AEG Hausgeräte GmbH, 90429 Nürnberg Waschtrommel für eine Waschmaschine
DE19731666A1 (de) * 1997-07-23 1999-01-28 Aeg Hausgeraete Gmbh Wäschetrommel für einen elektrischen Wäschetrockner
DE10162918A1 (de) * 2001-12-20 2003-07-03 Bsh Bosch Siemens Hausgeraete Trommel für eine Wäschebehandlungsmaschine
DE102005026175A1 (de) * 2005-06-06 2006-12-07 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Prägungen aufweisenden Wäschetrommel

Also Published As

Publication number Publication date
ES2399368T3 (es) 2013-03-27
EP2177657A1 (fr) 2010-04-21

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