EP2474659A1 - Tambour doté d'une structure bombée pour un lave-linge - Google Patents

Tambour doté d'une structure bombée pour un lave-linge Download PDF

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Publication number
EP2474659A1
EP2474659A1 EP11401007A EP11401007A EP2474659A1 EP 2474659 A1 EP2474659 A1 EP 2474659A1 EP 11401007 A EP11401007 A EP 11401007A EP 11401007 A EP11401007 A EP 11401007A EP 2474659 A1 EP2474659 A1 EP 2474659A1
Authority
EP
European Patent Office
Prior art keywords
drum
segments
grooves
channel
star point
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.)
Granted
Application number
EP11401007A
Other languages
German (de)
English (en)
Other versions
EP2474659B1 (fr
Inventor
Heinz-Theo Bellmann
Felix Maßmann
Werner Sack
Peter Zinkann
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 ES11401007T priority Critical patent/ES2399412T3/es
Priority to EP11401007A priority patent/EP2474659B1/fr
Priority to PL11401007T priority patent/PL2474659T3/pl
Publication of EP2474659A1 publication Critical patent/EP2474659A1/fr
Application granted granted Critical
Publication of EP2474659B1 publication Critical patent/EP2474659B1/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
    • 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 comprises, wherein between each adjacent segments channel-like webs are formed, in which holes for the passage of washing liquid are arranged.
  • 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 inwardly directed bulges in order to achieve a good discharge of the liquid from the drum. Furthermore, a good protection of the laundry is achieved because it can slide along the vaults very smoothly along.
  • 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.
  • driving ribs which are arranged distributed on the inside of the drum shell over the circumference.
  • the invention is therefore based on the object to provide a drum with buckles for a gentle laundry treatment, 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.
  • the curved areas or at least the crests of the vaults offer by the additional embossing an increased frictional resistance for the clothes sliding along it, which are then taken with the drum shell.
  • the conservation of the laundry items is maintained, so that premature wear or damage can be avoided.
  • the dewatering or liquor exchange between bound liquor and free liquor, which is predominantly in the tub outside the drum is improved or accelerated.
  • additional grooves are embossed in the arched segments in each curved area, which extend from a star point in the central region of the curvature starting in each case to the segment edge and open into one of the channel-like webs.
  • the grooves impressed on the bulges serve as drainage channels, through which the water or the washing liquid pressed out of the laundry is directed to the throughflow holes.
  • the additional embossing also ensures further stabilization of the drum shell, so that it can be made of thinner sheet metal, compared to a conventional drum shell. Overall, a good drainage is achieved, despite a small number of flood holes, in which case the diameter of the holes in the range of 1.8 to 3 mm, preferably 2 to 2.5 mm.
  • the star point is higher in the plane of the inner surface of the drum shell, that is, further toward the interior of the drum or closer to the drum axis, than the channels or the channel-like webs, relative to the plane of the shell.
  • the grooves on the dome or on the curvature are guided so that they open at a hole in the channel-like web. This provides a short and direct route for water drainage.
  • the grooves have a continuous slope to the channel-like web, relative to the plane of the inside of the shell, wherein as a slope, the direction from the apex region of the curvature, which is closer to the drum inside, is considered to the drum outer.
  • the channel-like webs disposed between the arched segments are curved relative to the plane of the shell, such that they have a slope to the holes.
  • a derivative of the water or the washing liquid from the webs to the holes between the curved segments is accelerated or improved.
  • star point in the plane of the inner surface of the drum shell is higher, ie further to the drum interior, as the channels or the channel-like webs, based on the plane of the shell.
  • the grooves are formed and the grooves are at an angle to the plane of the shell, whereby they have a steady slope to the respective channel-like web. Due to the gradient to the outside of the drum, the discharge of water or washing liquid is improved or accelerated.
  • the grooves are curved to the plane of the shell and have a steady slope to the respective channel-like web. Due to the curvature, the channel can follow the curvature course of the channel and be provided with a substantially constant depth.
  • each individual domed segment includes a plurality of domed sub-segments surrounded by gutters and a channel.
  • the curved portions are at least partially higher than the star point, based on the plane of the inner surface of the drum shell. This is at least partially prevents the laundry items settle in the gutters and block the drainage effect.
  • another hole is arranged in each star point. This accelerates the discharge and / or fleet exchange.
  • the star point is free of holes. This has the effect that the laundry items are better protected, as contacts to an additional hole edge are avoided.
  • additional channels are stamped in the arched segments in the respective curved area, extending from a star point in the central region of the curvature extending in each case to the edge of the segment and open into one of the channel-like webs, wherein the star point and the grooves on the inner surface of the drum shell lie in the same plane as the channels, and further in the star point another hole is arranged.
  • the segments are formed as polygons and run the grooves so that they open into vertices of the polygons, the holes are arranged at the vertices of the polygons.
  • This can be provided in a simple manner, the entire jacket area with a buckle structure, which has an advantageous effect on the stability of the shell.
  • the segments are formed as hexagons, each comprising three grooves extending from the star point in three corners of the segment. This results in a structure that resembles or resembles a plurality of adjacent diamonds.
  • the segments are also formed as hexagons, wherein the hexagons in this embodiment each comprise six grooves extending from the star point in the six corners of the segment. This results in a facet-like structure of hexagons, each consisting of six triangles whose tips meet in the common star point.
  • the channels and the gutters with a width in the range of 0.5 to 3 mm.
  • a good and targeted removal of the washing liquid or water is achieved and on the other hand prevents the laundry completely penetrate and clog in all channels or grooves during spin.
  • the drainage effect is thus maintained over a long period of spinning, whereby the effect of the drainage is improved.
  • Fig. 1 is a purely schematic representation of a washing machine 1, shown with a tub 2.
  • the position and direction information refers to the operational installation position of the washing machine 1.
  • Within the tub 2 is an over a horizontally or inclined axis 27 rotatably mounted and driven by an electric motor 13
  • Drum 3 is arranged, which moves the laundry items 8 located in the tub 2 and in the drum 3.
  • 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 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 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. Here, a corresponding structure of the segments 22 is formed in each section.
  • 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.
  • a hexagonal, equilateral form of the curved areas results in a key width in the range between 38 to 55 mm.
  • the height of the bulges of the segments 22 and the sub-segments 27, starting from the channel 23 to the apex or the tip is expediently about 0.1 to 2 mm.
  • the jacket 19 is shown as a settlement.
  • the segments 22 are curved toward the inner surface 19a of the jacket, with respect to the shell plane E.
  • the bulges are each bounded by a circumferential contour 22a on the lateral surface 19a. In this case is the contour 22a hexagonal, so that the juxtaposition of the curved segments 22 results in a honeycomb structure.
  • the bulges 22 are provided by the drum inner side, ie on the convex portions each with additional grooves 24 extending from a star point 26 in the region of the highest elevation on the segment 22, starting from the edge contour 22a, which merges into a web-shaped channel 23 and . forms a web-shaped channel 23.
  • the structure of the grooves 24 with the web-shaped channels 23 thus forms a plurality of curved sub-segments 27, here in this embodiment, there are six.
  • Fig. 5 is a portion of the shell 19 shown as a settlement.
  • the channels 23 and the grooves 24 are curved.
  • Fig. 6 shows the structure according to Fig. 5 as a top view.
  • the channels 23 and the gutters are outlined as lines.
  • the through-holes 25 are arranged in the corner points of the hexagonal arrangement of the channels 23 about a curvature 22, the through-holes 25 are arranged.
  • the star point 26 is free of holes.
  • the section line EE which extends in the longitudinal direction of the channels, it can be seen that the channels 23 are curved, such that the holes 25 a continuous slope is present, with respect to the plane E of the drum shell 19.
  • Based on the section line DD can be seen that the star point 26 is higher than the respective nearest channel 23.
  • the star point 26 and the channel 23 are surmounted by the curvature of the sub-segment 27 and its apex.
  • Fig. 7 shows an embodiment in which the star point 26 of the bulges 22 is provided with a further through-hole 25a.
  • the star point 26 lies on the plane with the channels 23, which are not curved in this example.
  • the curved segments 22 are each provided with six grooves 24 which extend in a star shape from the star point 26 to the holes 25 in the channels 23.
  • the curved segment 22 is divided into six sub-segments 27.
  • Fig. 8 shows an embodiment in which only three grooves 24 are embossed in a segment 22, which extend from the star point 26, starting at a hole 25 in the channel.
  • the channels 23 are each arranged circumferentially around the curved segments 22.
  • Fig. 8 further shows that star points 26 are each provided with a through-hole 25a.
  • the star point 26 is located there with the hole 25a at the same height or level E as the holes 25 in the channels 23rd

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP11401007A 2011-01-11 2011-01-11 Tambour doté d'une structure bombée pour un lave-linge Active EP2474659B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES11401007T ES2399412T3 (es) 2011-01-11 2011-01-11 Tambor con estructura abombada para una máquina lavadora
EP11401007A EP2474659B1 (fr) 2011-01-11 2011-01-11 Tambour doté d'une structure bombée pour un lave-linge
PL11401007T PL2474659T3 (pl) 2011-01-11 2011-01-11 Bęben o strukturze wypukłej dla pralki

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11401007A EP2474659B1 (fr) 2011-01-11 2011-01-11 Tambour doté d'une structure bombée pour un lave-linge

Publications (2)

Publication Number Publication Date
EP2474659A1 true EP2474659A1 (fr) 2012-07-11
EP2474659B1 EP2474659B1 (fr) 2013-01-09

Family

ID=44166453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11401007A Active EP2474659B1 (fr) 2011-01-11 2011-01-11 Tambour doté d'une structure bombée pour un lave-linge

Country Status (3)

Country Link
EP (1) EP2474659B1 (fr)
ES (1) ES2399412T3 (fr)
PL (1) PL2474659T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130213097A1 (en) * 2012-02-18 2013-08-22 Samsung Electronics Co., Ltd. Washing machine
KR20140046718A (ko) * 2012-10-10 2014-04-21 삼성전자주식회사 세탁기
EP3091112A1 (fr) * 2015-05-04 2016-11-09 Miele & Cie. KG Tambour pour un lave-linge et lave-linge
NL2016259B1 (en) * 2016-02-15 2017-08-22 Hyperwash B V Washing device comprising a washing drum with profile elements.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29705226U1 (de) * 1997-03-22 1998-07-23 AEG Hausgeräte GmbH, 90429 Nürnberg Waschtrommel für eine Waschmaschine
EP0935687B1 (fr) 1996-11-02 2001-06-13 Miele & Cie. GmbH & Co. Lave-linge a tambour
DE10162918A1 (de) 2001-12-20 2003-07-03 Bsh Bosch Siemens Hausgeraete Trommel für eine Wäschebehandlungsmaschine
WO2008077394A2 (fr) * 2006-12-22 2008-07-03 Dr. Mirtsch Gmbh Bande de matériau structurée à structuration multidimensionnelle et procédé de production correspondant
EP1964960A2 (fr) * 2007-02-28 2008-09-03 Samsung Electronics Co., Ltd. Machine à laver améliorant l'efficacité du lavage
EP2177657A1 (fr) * 2008-10-16 2010-04-21 Miele & Cie. KG Tambour pour un lave-linge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE10162918A1 (de) 2001-12-20 2003-07-03 Bsh Bosch Siemens Hausgeraete Trommel für eine Wäschebehandlungsmaschine
WO2008077394A2 (fr) * 2006-12-22 2008-07-03 Dr. Mirtsch Gmbh Bande de matériau structurée à structuration multidimensionnelle et procédé de production correspondant
EP1964960A2 (fr) * 2007-02-28 2008-09-03 Samsung Electronics Co., Ltd. Machine à laver améliorant l'efficacité du lavage
EP2177657A1 (fr) * 2008-10-16 2010-04-21 Miele & Cie. KG Tambour pour un lave-linge

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130213097A1 (en) * 2012-02-18 2013-08-22 Samsung Electronics Co., Ltd. Washing machine
KR20140046718A (ko) * 2012-10-10 2014-04-21 삼성전자주식회사 세탁기
CN103820973A (zh) * 2012-10-10 2014-05-28 三星电子株式会社 洗衣机
EP2719809A3 (fr) * 2012-10-10 2015-08-05 Samsung Electronics Co., Ltd Machine à laver
EP3091112A1 (fr) * 2015-05-04 2016-11-09 Miele & Cie. KG Tambour pour un lave-linge et lave-linge
DE102015106862A1 (de) * 2015-05-04 2016-11-10 Miele & Cie. Kg Waschmaschine und Trommel für eine Waschmaschine
NL2016259B1 (en) * 2016-02-15 2017-08-22 Hyperwash B V Washing device comprising a washing drum with profile elements.

Also Published As

Publication number Publication date
PL2474659T3 (pl) 2013-04-30
ES2399412T3 (es) 2013-04-01
EP2474659B1 (fr) 2013-01-09

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