EP3502343B1 - Tambour pour un appareil de traitement de linge, appareil de traitement de linge ainsi que procédé de fabrication du tambour - Google Patents

Tambour pour un appareil de traitement de linge, appareil de traitement de linge ainsi que procédé de fabrication du tambour Download PDF

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Publication number
EP3502343B1
EP3502343B1 EP18212242.4A EP18212242A EP3502343B1 EP 3502343 B1 EP3502343 B1 EP 3502343B1 EP 18212242 A EP18212242 A EP 18212242A EP 3502343 B1 EP3502343 B1 EP 3502343B1
Authority
EP
European Patent Office
Prior art keywords
fold
drum
plastic part
plastic
upper side
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
EP18212242.4A
Other languages
German (de)
English (en)
Other versions
EP3502343A1 (fr
Inventor
Alexander Drebant
Rainer Ediger
Felix Hentschel
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL18212242T priority Critical patent/PL3502343T3/pl
Publication of EP3502343A1 publication Critical patent/EP3502343A1/fr
Application granted granted Critical
Publication of EP3502343B1 publication Critical patent/EP3502343B1/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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D06F58/06—Mountings for the rotating drums

Definitions

  • the invention relates to a drum for a laundry treatment device, a laundry treatment device and a method for producing the drum.
  • the invention relates in particular to a drum for a laundry treatment device, comprising a cylinder jacket which has a seam in the direction of the width of the cylinder jacket, and at least one side wall, the cylinder jacket at least at one of its ends by means of a fold, which can also be referred to as a flanging, is connected to a side wall, a method for producing this drum and a laundry treatment device which contains this drum.
  • Laundry treatment devices generally have an aforementioned drum with a flange. This also applies in particular to laundry dryers, referred to herein as dryers, which are mentioned here by way of example. Dryers have a drum for receiving items of laundry. This drum moves while a laundry treatment program is being carried out. In general, the drum runs on wheels or rollers (referred to herein as "rollers"), on which it is rotatably mounted about a substantially horizontally mounted axis. The drum is usually driven by a belt drive. The drum can have an integrated back wall, which thus rotates with the rotation of the drum, or a standing back wall.
  • a drum axis of rotation can be mounted in an integrated rear wall, so that in the case of the integrated rear wall, two rollers that are in contact with the front end of the drum are often sufficient. However, four roles are sometimes used. In the case of a standing rear wall, four rollers are generally used.
  • rollers especially in dryers, are to support the drum. So far, the rollers have been attached below the front base located at the front end of the drum. However, there is a tendency for the drum to be heavily loaded with items of laundry. If the drum loaded with laundry items has a greater weight, it would make sense to mount the drum differently. An advantageous storage would take place via the flange of the drum, the flange being the area at which the drum shell is connected to a side wall. Ever depending on whether the drum has an integrated or standing back wall, there are either one or two flanges. With this solution, the rollers would run on the flange and no longer on the front base.
  • the publication DE 11 2009 001 081 B4 describes a clothes dryer having a drum rotatably built into the housing and a roller disposed below the drum and configured to support the drum, the roller being attached to a roller axle by a ball bearing.
  • the roller has, inter alia, a special roller frame with several concavo-convex sections and a specially designed outer wheel section. This should be able to support a drum of the clothes dryer particularly well, the role being configured to withstand even a large load.
  • the life of the roller is said to be extended by preventing stress concentration by increasing a contact area between the roller and the drum.
  • the publication WO 2004/005603 A1 describes a washing machine drum which comprises a cylindrical wall which is provided with a plurality of flood holes and which is connected at its ends by means of a fold to a rear side wall and a front side wall, an embossing being applied along the fold, which extends into all sheet metal layers that form the fold.
  • the publication WO 2015/058962 A1 describes a method for attaching an unbalance compensation device to a laundry drum, an arrangement for a household appliance and a household appliance.
  • the unbalance compensation device is inserted into a circumferentially formed receptacle of the laundry drum, an extension formed on a housing of the unbalance compensation device being heated and plastically deformed so that the extension engages behind a wall of the laundry drum that delimits the receptacle.
  • the deformation includes that the extension around an axial Front edge of the axially arranged wall is bent.
  • a projection formed on a side of the wall facing away from the receptacle and pointing away from the receptacle, in particular outward in a radial direction is engaged behind by the extension.
  • a projection in particular a fold of the wall is gripped from behind by the extension.
  • the publication US 9,758,919 B2 describes an apparatus for treating laundry, comprising a drum for receiving laundry, the drum having an open front axial end and an opened rear axial end, and the drum having a cross-section having at least a first part with a uniform curvature and at least a second part with a non-uniform curvature; a panel provided at a front or a rear end of the drum to seal the front axial end or the rear axial end of the drum; a circular guide coupled between the panel and the corresponding axial end of the drum to support the drum; and a panel seal provided between the drum and the panel, wherein the circular guide has a ring shape and is rotatably provided on the panel, a part of an outer surface of the circular guide being an inner surface of a front side or a rear side of the at least one first Contacted part of the drum, wherein an inner surface of a front or a rear side of the at least a second part of the drum does not contact the circular guide of the drum, wherein the panel
  • the drum has a seam in the direction of the width of the cylinder jacket, which is protected from damage by a reinforcement member (R).
  • the reinforcing member R can improve the strength of the seam W and prevent cracks generated in the seam W from growing.
  • the reinforcement member R can be formed on the edge of the drum, for example on the leading edge or trailing edge, and made of a plastic material.
  • the object of the present invention was to provide a drum with at least one fold and a laundry treatment device, in particular a dryer, in which the drum has a better surface quality along its fold or folds.
  • the drum should also run smoothly when it is unrolled on rollers which are arranged along a fold.
  • the invention thus relates to a drum for a laundry treatment device, comprising a cylinder jacket which has a seam in the direction of the width of the cylinder jacket, and at least one side wall, the cylinder jacket being connected to a side wall at at least one of its ends by means of a fold, and where a plastic part covering the fold at least on a fold top is applied along the fold, the plastic part covering the fold on the fold top and a fold bottom.
  • the plastic part is a film made of a thermoplastic or comprises this.
  • the film here preferably has a thickness in the range from 0.3 to 1 mm.
  • the plastic part comprises a plastic molded body.
  • the plastic molded body has a profile at least on an underside facing the fold. Such a profile serves in particular to ensure that the plastic molded body not only completely covers the fold, but also extends evenly beyond the fold and thus can enlarge a running surface for rollers.
  • the plastic molding can be in one piece or consist of at least two, preferably three parts. If the plastic molded body has at least two parts, a more complex plastic molded body can more easily be attached along the fold.
  • the plastic part preferably contains polyethylene or consists of polyethylene.
  • the plastic part covers the fold on the fold top and the fold bottom. It is preferred here that the plastic part engages around the fold from the fold top to the fold bottom.
  • the plastic part is in the part of its upper side that covers the fold, i.e. its surface facing away from the fold is flat.
  • a width b K of the plastic part covering the fold is at least 1.5 times the width b F of the fold, particularly preferably at least 2 times the width b F of the fold.
  • a fold generally has a width b F in the range from 4 to 8 mm, in particular in the range from 5 to 7 mm.
  • the plastic part covering the fold can then advantageously have a width b K in the range from 15 to 25 mm, in particular in the range from 18 to 22 mm.
  • shrinking on is to be understood broadly. Essentially, this means a process step in which a plastic part, usually containing a thermoplastic, is sufficiently heated and thus softened to be attached to the fold. After the thermoplastic has cooled and thus contracted, there is a firm connection between the plastic part and the fold.
  • the plastic part can be heated in various ways, for example also by ultrasound.
  • the plastic part is a film made of a thermoplastic material and is applied to the fold by shrinking.
  • shrinking is particularly easy.
  • the plastic part is a molded plastic body which has a profile at least on an underside facing the fold and is applied to the fold by gluing or shrinking the plastic part.
  • the plastic part is a plastic molded body, it is usually not possible to soften it by heating to the same extent as with a film.
  • the subject matter of the invention is also a laundry treatment device, comprising a drum for receiving items of laundry to be treated, the drum having a cylinder jacket which has a seam in the direction of the width of the cylinder jacket and at least one side wall, the cylinder jacket at at least one of its ends is connected to a side wall by means of a fold, and a plastic part covering the fold at least on a fold top side is applied along the fold, the plastic part covering the fold on the fold top side and a fold bottom side.
  • the laundry treating appliance is not limited according to the invention as long as it can have a drum according to the invention.
  • the laundry treatment device is preferably a dryer.
  • a dryer comprises a housing and a drum according to the invention, rotatably mounted about an axis within the housing, for receiving items of laundry, the drum being in contact with at least two roller devices, in particular rollers, during operation of the dryer.
  • the invention has several advantages. In general, the beading in a drum is protected by the plastic part, and in particular any existing openings can also be covered. In addition, the invention has the advantage that the fold has better stability even when the drum is subjected to high loads and is less prone to possible bending and opening over time.
  • such a drum can be used particularly advantageously in a dryer as an embodiment for a laundry treatment appliance according to the invention.
  • a drum according to the invention enables a lower rolling noise in such a dryer, that is to say a lower noise development.
  • leakage losses are lower because openings that often occur in the edge area during the manufacture of a drum shell can also be covered.
  • the wear of the rollers used in the dryer can be less if the running surface, i.e. the top of the plastic part is flat.
  • Fig. 1 shows a photo of a detail from a conventional drum 1 in which no plastic part is arranged on the fold 5.
  • the rough structure of the folded surface 6 can be clearly seen. If this folded surface were used as a running surface for rollers, for example in a dryer, it would run unevenly, which would lead to noise and increased wear.
  • 12 here means an opening in the cylinder jacket 2 of the drum 1. A region is shown here over which a film with a width b K would extend over the fold 5. The opening 12 would be covered by the film.
  • FIG. 13 schematically shows a drawing of the perspective view of the conventional drum 1 of FIG Fig. 1 with a side wall 4 and a cylinder jacket 2, which are connected to one another via a fold 5.
  • 12 here means an opening in the cylinder jacket 2 of the drum 1.
  • 11 is the end wall which, as a rule, in dryers with conventional drums, is the running surface used to support the drum during rotation Rolling is.
  • Fig. 3 shows schematically a drawing of the perspective view of a drum 1 according to the invention with a side wall 4 and a cylinder jacket 2, which are connected to one another via a fold which is not further recognizable here.
  • a film 8 is arranged on the fold as a plastic part.
  • the opening shown in the cylinder jacket 2 is covered here by the film 8.
  • Fig. 4 shows a perspective sectional view through a fold 5 covered with a film 8.
  • the arrangement of the side wall 4 and cylinder jacket 2 in the fold can be clearly seen here.
  • the film 8 here covers the fold 5 on the fold top 6 and the fold bottom 7.
  • the film 8 encompasses the fold 5 from the fold top 6 to the fold bottom 7.
  • Fig. 5 shows a plan view of a section through a fold 5 covered with a film 8.
  • the arrangement of the side wall 4 and cylinder jacket 2 in the fold is clearly visible here.
  • the film 8 here covers the fold 5 on the fold top 6 and the fold bottom 7.
  • the film 8 encompasses the fold 5 from the fold top 6 to the fold bottom 7.
  • Fig. 6 shows a section from a drum according to the invention with a film 8 on the fold.
  • the film 8 here covers an opening in the seam 3.
  • 11 means the front base of the drum.
  • Fig. 7 shows a perspective sectional view through a fold 5 covered with a plastic molded body 9.
  • the plastic molded body 9 is flat in the part of its upper side that covers the fold 5, encompasses the fold 5 from the fold top 6 to the fold bottom 7 and covers the fold 5 on the fold top 6
  • the arrangement of the side wall 4 and cylinder jacket 2 in the fold 5 is clearly visible here.
  • a width b K of the plastic molded body 9 covering the fold 5 is at least 1.5 times the width b F of the fold 5 is.
  • the plastic molded body 9 thus offers a wider running surface for rollers for use in a dryer.
  • the plastic molded body 9 has a profile on an underside 10 facing the fold 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Claims (14)

  1. Tambour (1) pour un appareil de traitement du linge, comprenant une enveloppe cylindrique (2), qui présente dans la direction de la largeur de l'enveloppe cylindrique (2) un joint soudé (3), et au moins une paroi latérale (4), dans lequel l'enveloppe cylindrique (2) est reliée au niveau d'au moins une de ses extrémités au moyen d'un pli (5) à une paroi latérale (4), caractérisé en ce que le long du pli (5) une pièce en matière plastique (8, 9) recouvrant le pli (5) au moins au niveau d'une face supérieure de pli (6) est posée, dans lequel la pièce en matière plastique (8, 9) recouvre le pli (5) sur la face supérieure de pli (6) et une face inférieure de pli (7).
  2. Tambour (1) selon la revendication 1, caractérisé en ce que la pièce en matière plastique (8, 9) est une feuille (8) en matière thermoplastique ou la comprend.
  3. Tambour (1) selon la revendication 1 ou 2, caractérisé en ce que la feuille (8) a une épaisseur comprise dans la plage de 0,3 à 1 mm.
  4. Tambour (1) selon l'une des revendications 1 à 3, caractérisé en ce que la pièce en matière plastique (8, 9) comprend un corps moulé en matière plastique (9).
  5. Tambour (1) selon la revendication 4, caractérisé en ce que le corps moulé en matière plastique (9) présente un profil au moins sur une face inférieure (10) tournée vers le pli (5).
  6. Tambour (1) selon la revendication 4 ou 5, caractérisé en ce que le corps moulé en matière plastique (9) se compose d'au moins deux, de préférence trois, parties.
  7. Tambour (1) selon l'une des revendications 1 à 6, caractérisé en ce que la pièce en matière plastique (8, 9) comporte du polyéthylène ou se compose de polyéthylène.
  8. Tambour (1) selon l'une des revendications 1 à 7, caractérisé en ce que la pièce en matière plastique (7) entoure le pli (5) depuis la face supérieure de pli (6) jusqu'à la face inférieure de pli (7).
  9. Tambour (1) selon l'une des revendications 1 à 8, caractérisé en ce que la pièce en matière plastique (8, 9) est conçue plate dans la partie de sa face supérieure recouvrant le pli (5).
  10. Tambour (1) selon l'une des revendications 1 à 9, caractérisé en ce qu'une largeur bK de la pièce en matière plastique (8, 9) recouvrant le pli (5) est au moins 1,5 fois la largeur bF du pli (5).
  11. Procédé destiné à la fabrication d'un tambour (1) pour un appareil de traitement du linge, comprenant une enveloppe cylindrique (2), qui présente dans la direction de la largeur de l'enveloppe cylindrique (2) un joint soudé (3), et au moins une paroi latérale (4), dans lequel l'enveloppe cylindrique (2) est reliée au niveau d'au moins une de ses extrémités au moyen d'un pli (5) à une paroi latérale (4), et le long du pli (5) une pièce en matière plastique (8, 9) recouvrant le pli (5) au moins au niveau d'une face supérieure de pli (6) est posée, dans lequel la pièce en matière plastique (8, 9) recouvre le pli (5) sur la face supérieure de pli (6) et une face inférieure de pli (7), comprenant les étapes
    (a) de mise à disposition du tambour (1) avec un pli découvert ; et
    (b) de pose de la pièce en matière plastique (8, 9) sur au moins la face supérieure de pli (6) par le biais d'un collage de la pièce en matière plastique (8, 9) avec le pli (5) ou par le biais d'une rétractation à chaud de la pièce en matière plastique (8, 9) sur le pli (5).
  12. Procédé selon la revendication 11, caractérisé en ce que la pièce en matière plastique (8, 9) est une feuille (8) en matière thermoplastique et est posée sur le pli (5) par le biais d'une rétractation à chaud.
  13. Procédé selon la revendication 11, caractérisé en ce que la pièce en matière plastique (8, 9) est un corps moulé en matière plastique (9) qui présente un profil au moins sur une face inférieure (10) tournée vers le pli (5) et est posée sur le pli (5) par le biais d'un collage ou d'une rétractation à chaud de la pièce en matière plastique (8, 9).
  14. Appareil de traitement du linge, comprenant un tambour (1) destiné à la réception de linge à traiter, dans lequel le tambour (1) comporte une enveloppe cylindrique (2) qui présente dans la direction de la largeur de l'enveloppe cylindrique (2) un joint soudé (3), et au moins une paroi latérale (4), dans lequel l'enveloppe cylindrique (2) est reliée au niveau d'au moins une de ses extrémités au moyen d'un pli (5) à une paroi latérale (4), caractérisé en ce que le long du pli (5) une pièce en matière plastique (8, 9) recouvrant le pli (5) au moins au niveau d'une face supérieure de pli (6) est posée, dans lequel la pièce en matière plastique (8, 9) recouvre le pli (5) sur la face supérieure de pli (6) et une face inférieure de pli (7).
EP18212242.4A 2017-12-21 2018-12-13 Tambour pour un appareil de traitement de linge, appareil de traitement de linge ainsi que procédé de fabrication du tambour Active EP3502343B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18212242T PL3502343T3 (pl) 2017-12-21 2018-12-13 Bęben do urządzenia do przetwarzania prania, urządzenie do przetwarzania prania i sposób wytwarzania bębna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017223582.9A DE102017223582A1 (de) 2017-12-21 2017-12-21 Trommel für ein Wäschebehandlungsgerät, Wäschebehandlungsgerät sowie Verfahren zur Herstellung der Trommel

Publications (2)

Publication Number Publication Date
EP3502343A1 EP3502343A1 (fr) 2019-06-26
EP3502343B1 true EP3502343B1 (fr) 2020-11-04

Family

ID=64665290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18212242.4A Active EP3502343B1 (fr) 2017-12-21 2018-12-13 Tambour pour un appareil de traitement de linge, appareil de traitement de linge ainsi que procédé de fabrication du tambour

Country Status (4)

Country Link
EP (1) EP3502343B1 (fr)
CN (1) CN109944043B (fr)
DE (1) DE102017223582A1 (fr)
PL (1) PL3502343T3 (fr)

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US2169395A (en) * 1935-09-28 1939-08-15 Rheem Mfg Co Drum
US2257697A (en) * 1939-04-17 1941-09-30 Archie W Mcclary Container
CH345862A (de) * 1955-08-17 1960-04-30 Peter Pfenningsberg Gmbh Masch Trommel für Waschmaschinen
GB1461853A (en) * 1974-02-15 1977-01-19 Burco Dean Ltd Tumbler dryers
GB2127135B (en) * 1982-09-15 1985-12-04 Colston Domestic Appliances Dryer with plastics drum
ES2214104B1 (es) 2002-07-03 2005-12-16 Bsh Electrodomesticos España, S.A. Tambor de lavadora.
US7340849B2 (en) * 2004-07-08 2008-03-11 Lg Electronics Inc. Drum in dryer and method for fabricating the same
CN1724785A (zh) * 2004-07-21 2006-01-25 乐金电子(天津)电器有限公司 烘干机用滚筒成型方法及根据它轧制的滚筒结构
JP4301256B2 (ja) * 2006-06-21 2009-07-22 パナソニック株式会社 ドラム式洗濯機
DE102006031352A1 (de) * 2006-07-06 2008-01-10 BSH Bosch und Siemens Hausgeräte GmbH Von vorn beschickbare Waschmaschine
KR101006591B1 (ko) 2008-06-03 2011-01-07 엘지전자 주식회사 의류건조기
JP2011072497A (ja) * 2009-09-30 2011-04-14 Hitachi Appliances Inc 洗濯乾燥機および乾燥機
US9758919B2 (en) * 2010-08-09 2017-09-12 Lg Electronics Inc. Apparatus for treating laundry
US9562610B2 (en) * 2013-04-01 2017-02-07 Felters Of South Carolina, Llc Fire retardant high temperature dryer seals and related methods
DE102013221289A1 (de) 2013-10-21 2015-04-23 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Befestigen einer Unwuchtausgleichsvorrichtung an einer Wäschetrommel, Anordnung für ein Haushaltsgerät und Haushaltsgerät
DE102015204370A1 (de) * 2015-03-11 2016-09-15 BSH Hausgeräte GmbH Haushaltsgerät zur Pflege von Wäschestücken mit einer mit Klammern befestigten Unwuchtausgleichsvorrichtung
CN106049000B (zh) * 2016-07-29 2020-09-22 无锡小天鹅电器有限公司 衣物处理装置

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Also Published As

Publication number Publication date
DE102017223582A1 (de) 2019-06-27
EP3502343A1 (fr) 2019-06-26
PL3502343T3 (pl) 2021-05-04
CN109944043A (zh) 2019-06-28
CN109944043B (zh) 2022-11-15

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