EP2177656A1 - Tambour pour un sèche-linge - Google Patents

Tambour pour un sèche-linge Download PDF

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Publication number
EP2177656A1
EP2177656A1 EP08018120A EP08018120A EP2177656A1 EP 2177656 A1 EP2177656 A1 EP 2177656A1 EP 08018120 A EP08018120 A EP 08018120A EP 08018120 A EP08018120 A EP 08018120A EP 2177656 A1 EP2177656 A1 EP 2177656A1
Authority
EP
European Patent Office
Prior art keywords
drum
segments
curved
length
approximately
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
EP08018120A
Other languages
German (de)
English (en)
Other versions
EP2177656B1 (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 ES08018120T priority Critical patent/ES2395983T3/es
Priority to EP08018120A priority patent/EP2177656B1/fr
Publication of EP2177656A1 publication Critical patent/EP2177656A1/fr
Application granted granted Critical
Publication of EP2177656B1 publication Critical patent/EP2177656B1/fr
Not-in-force 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • 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 tumble dryer, in which the drum can be rotatably mounted on a horizontal or inclined axis, comprising a cylindrical or frusto-conical shell, which comprises on its surface a structure consisting of individual curved segments.
  • the drum For drying wet or damp laundry items, there are known dryers with a rotatable drum, through which a heated air stream flows in order to dry the laundry located therein.
  • the wet laundry items are swirled around by the drum rotation, so that they are well flowed through by the drying air, whereby the laundry is deprived of moisture.
  • the drum usually has driving ribs in order to lift the laundry items in the circumferential direction, wherein they detach in the upper region due to their gravity from the drum shell and impinge on the drum shell down.
  • a drum for a tumble dryer which has a structure of outwardly directed, to the drum outer bulges for improved entrainment.
  • This additionally protects the laundry items, as they can slide on a bubble, caused by partial Heilverwirbelungen in the area of the bulges, very low friction along.
  • the bulges are here uniformly structured, so that the laundry movement is caused in the circumferential direction of the drum. In this case, it may happen that the laundry pieces curl together in a ring, so that there is a rolling movement with less mixing with the drying air.
  • the invention is therefore based on the object to provide a drum for a tumble dryer with buckles, in which the mixing of the laundry with the drying air is improved in a simple manner.
  • the main advantage of the drum according to the invention is that an improved movement of the laundry items within the drum is achieved when arranged approximately horizontally or inclined and with a usual speed for the drying process, for example 20 to 70 rpm is rotated. Furthermore, the conservation of the laundry items is maintained or improved, 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 drum outer, which consists of individual curved segments.
  • the size of the segments is designed differently such that the structure of the curved segments forms a curved pattern on the jacket. Due to the curved pattern, partially different flows or turbulences of the drying air are caused, as a result of which differently intensive air cushions are formed on the drum shell.
  • moving laundry items are moved on or close to the drum shell somewhat in the axial direction or in the direction of an edge of the drum shell, so that the laundry items are moved more strongly within the drum.
  • the pattern is S-shaped or S-shaped several times curved.
  • force impulses or movement impulses are exerted transversely to the circumferential direction in two opposing directions on the laundry casing resting against the drum casing, so that the laundry items reciprocate in the axial direction when the drum is rotated.
  • the directional impulses are also exerted on the items of laundry which impinge on the drum shell during the tumble or slide along it, so that on the whole a seemingly chaotic or chaotic or inhomogeneous movement of the items inside the drum is produced than in the case of a drum with a uniform arch structure.
  • 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 honeycombed 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 mechanical effect on the laundry is effected, whereby the motion caused by the vault structure movement pulses 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 impulses for the laundry 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 and the arrangement are chosen so that the S-shaped pattern is formed in the circumferential direction of the 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 two sections, wherein in each section in each case an S-shaped pattern or a multiple S-shaped curved pattern of domed segments is arranged.
  • each section in each case an S-shaped pattern or a multiple S-shaped curved pattern of domed 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 kept very flat, preferably in the range of about 1 to 2 cm with a drum diameter of 50 to 65 cm.
  • the curved or S-shaped pattern is formed on the jacket in such a way that a curved or S-shaped web results without buckling or arch structure.
  • 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 or at the ends of the S-shaped web approximately 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 to the drum outer and / or drum interior 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 from about 0.4 to 0.8 times the width of a nearest segment.
  • Fig. 1 is a purely schematic representation of a dryer 1, shown with a housing 2 and a drum 3 arranged therein.
  • the position and direction data relate to the operating position of the dryer 1.
  • the drum 3 is rotatably mounted, so that in the drying process, the laundry items 8 are swirled around while the air or heated air 12 flows through the drum 3.
  • the housing 2 has a loading opening 5, via which the interior of the drum 3 can be reached.
  • the loading opening 5 can be closed by means of a door 4.
  • the air flow 12 is generated by means of a blower 5 and blown through the process air duct 7 into the drum 3. With a heater 6 in the process air duct 7, the air 12 is heated.
  • a condensation device 11 is furthermore provided, which extracts the moisture from the process air 12 and supplies the condensation liquid to a collecting container 9.
  • the fan 5 and the drum 3 is driven in rotation.
  • 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 inner side 19 a of the jacket 19 are distributed over the circumference a plurality of driver ribs 21, in this example, three, attached.
  • the driver ribs 21 are formed in profile approximately V-shaped.
  • the drum shell 19 is here divided into three sections, which are divided by the driver ribs 21. In this case, in each section, a structure of the segments 22 is formed such that a curved pattern, in this example an S-shaped pattern, forms 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.
  • 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 front 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 on the surface of the jacket 19.
  • a curved or S-shaped web 24 is formed, due to its S-shape, the circumferential center line, here Equatorialline EQ called, crossed or oriented to it.
  • the circumferential center line here Equatorialline EQ called
  • Fig. 4a is a single section 26 of the shell 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 regard to their width B, such that a curved, here an S-shaped pattern of the structure results, wherein additionally an S-shaped web 24 is formed without segments 22 and without bulges.
  • the jacket 19 is shown in the sectional plane AA. It can be seen here that 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. It can also be seen here that the web 24 has no curvature. The web 24 in this case has a width B of about a segment 22, as it undistorted or as it represents in its length L.
  • FIG. 5a an embodiment of the drum 3 is outlined, 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 designed differently wide in its course in the circumferential direction U, wherein the width B of the web 24 at the narrowest point in the center region of the drum portion 26 or the drum circumference approximately the length L of a segment 22 and at the widest point in the apex area or at the ends of the S-shaped web 24 approximately the length L of 1.5 to 2 times a segment 22 corresponds.
  • the web 22 is provided with additional curved surfaces 27 facing the drum, the curved surfaces 27 each having a circumferential length U of the jacket 19 of about 0.4 to 0.8 times the length L of a nearest segment 22 and a width B of about 0.4 to 0.8 times the width B of a nearest segment 22.
  • the curved to the drum outer segments 22 are the curved to the drum outer segments 22, the smooth area of the web 24 and the curved segments 27 can be seen in the web 24.
  • the smaller segments 27 arranged on the web 24 may also be arched towards the interior of the drum in order to increase the entrainment effect on the items of laundry 8 (FIG. Fig. 1 ) to reinforce. Furthermore, a combination of outward bulges and inward bulges is possible.
  • Fig. 6 shows an embodiment of the drum shell 19 in an unwound representation, in which the segments 22 are formed so differently that results in a curved or S-shaped structure 28 which extends along the entire shell circumference. There is no buckle-free web 24 is formed so that only the distortion of the segments forms the curved or S-shaped pattern.
  • Fig. 7 shows an embodiment with a buckle-free web 24 in the middle third of the shell 19.
  • the S-shape is designed so that a single S or a single swing back and forth over the entire shell circumference extends.
  • 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)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
EP08018120A 2008-10-16 2008-10-16 Tambour pour un sèche-linge Not-in-force EP2177656B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES08018120T ES2395983T3 (es) 2008-10-16 2008-10-16 Tambor para una secadora de ropa
EP08018120A EP2177656B1 (fr) 2008-10-16 2008-10-16 Tambour pour un sèche-linge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08018120A EP2177656B1 (fr) 2008-10-16 2008-10-16 Tambour pour un sèche-linge

Publications (2)

Publication Number Publication Date
EP2177656A1 true EP2177656A1 (fr) 2010-04-21
EP2177656B1 EP2177656B1 (fr) 2012-11-28

Family

ID=40451370

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08018120A Not-in-force EP2177656B1 (fr) 2008-10-16 2008-10-16 Tambour pour un sèche-linge

Country Status (2)

Country Link
EP (1) EP2177656B1 (fr)
ES (1) ES2395983T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2386677A1 (fr) 2010-10-14 2011-11-16 Primus CE s.r.o. Machine à laver à tambour
US20190071811A1 (en) * 2016-07-12 2019-03-07 Samsung Electronics Co., Ltd Washing machine

Citations (6)

* 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
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
DE10145079C1 (de) 2001-09-13 2002-10-10 Miele & Cie Trommel für einen Wäschetrockner
DE102005026175A1 (de) 2005-06-06 2006-12-07 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Prägungen aufweisenden Wäschetrommel

Patent Citations (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
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
DE10145079C1 (de) 2001-09-13 2002-10-10 Miele & Cie Trommel für einen Wäschetrockner
EP1293594B1 (fr) 2001-09-13 2006-04-12 Miele & Cie. KG un sèche-linge avec un Tambour
DE102005026175A1 (de) 2005-06-06 2006-12-07 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Prägungen aufweisenden Wäschetrommel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2386677A1 (fr) 2010-10-14 2011-11-16 Primus CE s.r.o. Machine à laver à tambour
US20190071811A1 (en) * 2016-07-12 2019-03-07 Samsung Electronics Co., Ltd Washing machine
US11028516B2 (en) * 2016-07-12 2021-06-08 Samsung Electronics Co., Ltd. Washing machine

Also Published As

Publication number Publication date
EP2177656B1 (fr) 2012-11-28
ES2395983T3 (es) 2013-02-18

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