EP2390399B1 - Trommel für eine Waschmaschine - Google Patents

Trommel für eine Waschmaschine Download PDF

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Publication number
EP2390399B1
EP2390399B1 EP10401070A EP10401070A EP2390399B1 EP 2390399 B1 EP2390399 B1 EP 2390399B1 EP 10401070 A EP10401070 A EP 10401070A EP 10401070 A EP10401070 A EP 10401070A EP 2390399 B1 EP2390399 B1 EP 2390399B1
Authority
EP
European Patent Office
Prior art keywords
drum
holes
webs
drum according
segments
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
EP10401070A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2390399A1 (de
Inventor
Benedikt Fechtel
Felix Rütten
Felix Maßmann
Werner Hunke
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 PL10401070T priority Critical patent/PL2390399T3/pl
Priority to EP10401070A priority patent/EP2390399B1/de
Priority to ES10401070T priority patent/ES2399039T3/es
Publication of EP2390399A1 publication Critical patent/EP2390399A1/de
Application granted granted Critical
Publication of EP2390399B1 publication Critical patent/EP2390399B1/de
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
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis

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 and between the segments formed webs, and further comprises holes for the passage of washing liquid, wherein the bulges are arranged to form a net-like structure of the webs.
  • 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 raise the water from the lower portion of the tub upwards and distribute from there over the laundry.
  • Such a drum for a washing machine is known. So that the laundry is spared during washing, a few holes in the drum shell are arranged with a smaller diameter, here about 2 mm. In the case of small holes, not so many fibers penetrate there during washing or spinning, as a result of which pilling or fiber detachment is avoided.
  • the known drum has a structure of curvatures directed towards the interior of the drum. The holes are arranged in the corner points of the edge contours of the bulges. This ensures good protection of the laundry, as it can slide along the vaults with very little friction.
  • 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 flow of washing liquid or the alkali exchange between the inside of the drum and the tub does not always run optimally.
  • the entrainment effect of the garments on the drum shell may suffer when a film of water forms whereby the garments slide too easily downwards or remain in the lower position, resulting in a reduced mechanical action.
  • the invention is therefore based on the object to provide a drum with buckles, in which the mechanical action and the drainage are 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 holes are in this case arranged in the webs, such that the webs in the areas of the star points or intersections are free of holes.
  • a weakening of the material of the drum shell is avoided because the area particularly stressed by the deformation of the material is no longer provided with a hole.
  • this arrangement provides the advantage that the holes in the narrower areas of the webs, based on the web width in the crossing areas, are located so that the holes are partially not reached by the laundry.
  • the holes are each arranged in the range of 1/4 to 1/3 of the total web length, which results from the distance between two centers of two adjacent star points or intersections, away from a center of a star point away in the web.
  • the curved segments each have a polygonal shape, wherein the edge contours of two adjacent segments are spaced from each other to form a ridge.
  • the webs between two bulges have an approximately constant width, which on the one hand has a stabilizing effect on the drum shell.
  • a constant flow is achieved within the webs, so that no speed reduction of the liquid flow occurs to the openings.
  • a certain self-cleaning effect of the holes and the areas around the holes is achieved.
  • there is a nearly continuous arch structure which can thereby exert particularly effective movement impulses on the laundry.
  • the corners are rounded with a radius in the range of 2 to 10 mm. Due to the smooth transitions, an improved sliding of the laundry items over the vaults is achieved. It is expedient to arrange the holes in each case in the region of a web, in each of which a rounding begins.
  • the area of a curvature on the casing is about 1000 to 2500 mm 2.
  • three webs always meet at the intersection areas, wherein each web is assigned at least one own through-hole. The flooding is not affected due to the large number of holes when the bulges are formed so large.
  • equilateral form of the curved areas results in a key width in the range between 38 to 55 mm.
  • the diameter of the holes in the range of 1/3 of the web width is up to the entire web width. This ensures that the holes are not in the area of the curvature, so that no sharp edges of the hole edges can occur towards the inside of the drum. This is especially important for the laundry, as thread-pulling or abrasion is reduced.
  • the height of the bulges is suitably about 0.1 to 2 mm.
  • 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 have a polygonal base
  • 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.
  • a rotatably mounted on a horizontal or inclined axis and driven by an electric motor 13 drum 3 is arranged, which in the tub 2 and in the drum 3 located laundry 8 moves.
  • the drum 3 is made in the present embodiment of stainless steel and with a plurality of holes 25 (FIG. Fig. 3 ) 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 10 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 in 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 arranged between the curved segments 22 and a diameter of about 1.8 to 2.5 mm, preferably 2 mm.
  • the drum shell 19 is here divided into three sections 26 which are divided by the scoop ribs 21.
  • a structure of polygonal segments 22, in this example hexagonal, formed with their contours 22a (FIG. Fig. 3 ) are spaced apart to their respective adjacent segments 22 and form a honeycomb-like arrangement.
  • Fig. 3 is a section 26 of the inner side 19 a of the shell 19 shown as outlined development.
  • the curved segments 22 are in this case formed hexagonal with rounded corners 22a.
  • the edge contours of the hexagons of two adjacent bulges 22 do not touch each other, so that the spacing of the contours each forms a web 24.
  • the holes 25 are arranged so that they do not lie at or in the corners of the edge contour of the polygons.
  • Fig. 4 shows a section of the vault-structured lateral surface 19a with three mutually adjacent hexagonal curved segments 22.
  • the segments 22 are spaced from each other, so that in each case forms a web with the web width SB.
  • the area in and around the star point 27 is free of holes, since the holes 25 are only spaced apart from the star point 27.
  • the corners of the polygons are not rounded off, so that a reduced area of the crossing area 27 results, compared to a crossing area 27 with rounded corners.
  • Fig. 5 shows a section along the section line BB of the shell 19.
  • the curved segments 22 are curved towards the central axis A of the drum or that the vertex of the curvature 22 is closer to the central axis A, as the webs 24th or the holes 25.
  • the course of the curvature 22 begins this rising flat and forms a dome in the middle of the shape of a blunt tip.
  • the diameter d of the holes 25 is set in this example about one third and up to half of the web width SB.
  • Fig. 6 shows an embodiment in which the bulge 22 starts from the web 24 or a hole 25, starting steeply and is continuously flattened from this, to the central region, so that this corresponds to an elliptical course.
  • the hole diameter d is set in this example about the entire web width SB.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP10401070A 2010-05-31 2010-05-31 Trommel für eine Waschmaschine Active EP2390399B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL10401070T PL2390399T3 (pl) 2010-05-31 2010-05-31 Bęben do pralki
EP10401070A EP2390399B1 (de) 2010-05-31 2010-05-31 Trommel für eine Waschmaschine
ES10401070T ES2399039T3 (es) 2010-05-31 2010-05-31 Tambor para una lavadora

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10401070A EP2390399B1 (de) 2010-05-31 2010-05-31 Trommel für eine Waschmaschine

Publications (2)

Publication Number Publication Date
EP2390399A1 EP2390399A1 (de) 2011-11-30
EP2390399B1 true EP2390399B1 (de) 2012-12-26

Family

ID=43034973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10401070A Active EP2390399B1 (de) 2010-05-31 2010-05-31 Trommel für eine Waschmaschine

Country Status (3)

Country Link
EP (1) EP2390399B1 (pl)
ES (1) ES2399039T3 (pl)
PL (1) PL2390399T3 (pl)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD761501S1 (en) 2013-09-27 2016-07-12 Whirlpool Corporation Container for clothes washing machine
US10036113B2 (en) 2013-07-22 2018-07-31 Whirlpool Corporation Laundry treating appliance with embossed container

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2628839A1 (en) * 2012-02-18 2013-08-21 Samsung Electronics Co., Ltd Washing machine
KR101944366B1 (ko) * 2012-10-10 2019-02-07 삼성전자주식회사 세탁기
CN104420124B (zh) * 2013-08-29 2018-05-22 青岛海尔滚筒洗衣机有限公司 一种洗衣机内桶及洗衣机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954027C2 (de) * 1998-12-18 2003-01-23 Miele & Cie Vorrichtung und Verfahren zur Herstellung beulstrukturierter Materialbahnen
DE19905534B4 (de) * 1999-02-10 2010-02-04 BSH Bosch und Siemens Hausgeräte GmbH Trommelwaschmaschine mit einer Wäschetrommel, deren Trommelmantel eine strukturierte Oberfläche aufweist
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
JP4652306B2 (ja) * 2006-09-27 2011-03-16 パナソニック株式会社 洗濯機
KR101136863B1 (ko) * 2007-02-28 2012-04-20 삼성전자주식회사 세탁기

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10036113B2 (en) 2013-07-22 2018-07-31 Whirlpool Corporation Laundry treating appliance with embossed container
USD761501S1 (en) 2013-09-27 2016-07-12 Whirlpool Corporation Container for clothes washing machine
USD867700S1 (en) 2013-09-27 2019-11-19 Whirlpool Corporation Container for clothes washing machine
USD878690S1 (en) 2013-09-27 2020-03-17 Whirlpool Corporation Container for a clothes washing machine

Also Published As

Publication number Publication date
EP2390399A1 (de) 2011-11-30
PL2390399T3 (pl) 2013-04-30
ES2399039T3 (es) 2013-03-25

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