EP1790768B1 - Seal for a laundry drier - Google Patents

Seal for a laundry drier Download PDF

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Publication number
EP1790768B1
EP1790768B1 EP06024009A EP06024009A EP1790768B1 EP 1790768 B1 EP1790768 B1 EP 1790768B1 EP 06024009 A EP06024009 A EP 06024009A EP 06024009 A EP06024009 A EP 06024009A EP 1790768 B1 EP1790768 B1 EP 1790768B1
Authority
EP
European Patent Office
Prior art keywords
seal
sealing
rotating drum
drum
sealing surface
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.)
Not-in-force
Application number
EP06024009A
Other languages
German (de)
French (fr)
Other versions
EP1790768A3 (en
EP1790768A2 (en
Inventor
Andreas Ewert
Kerstin Schröder
Norbert Wieczorek
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 PL06024009T priority Critical patent/PL1790768T3/en
Publication of EP1790768A2 publication Critical patent/EP1790768A2/en
Publication of EP1790768A3 publication Critical patent/EP1790768A3/en
Application granted granted Critical
Publication of EP1790768B1 publication Critical patent/EP1790768B1/en
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 

Definitions

  • the invention relates to a seal for a tumble dryer, which is arranged in the gap between an annular fixed component with a coaxial with the rotating drum aligned sealing surface and an annular sealing surface of the rotating drum and carries a drum facing textile coating.
  • Such a seal for the drum of a tumble dryer is from the DE 199 07 602 C2 known.
  • the seal is arranged in the gap between an annular stationary housing part with a coaxial with the rotating drum aligned sealing surface and an annular sealing surface of the rotating drum and consists of a profile-like shaped support ring with a textile covering.
  • the profile of the support ring is formed in cross-section L-shaped, wherein the arranged on the coaxial with the rotating drum leg carries the textile covering.
  • the seal fills the radial gap between the rotating drum and the stationary housing part in this area.
  • Another seal for a tumble dryer is from the DE 17 10 551 B known.
  • the drum is mounted in the front area via a mounted on the fixed housing part on the front wall flange and a ring arranged around the feed opening of the drum bearing ring.
  • the seal consists of an annular pressing member which is secured to the fixed housing part, as well as a felt ring, which is glued to the radially outer wall of the flange.
  • the axially acting seal is arranged in the gap between the rear drum front side and fixed housing wall.
  • the seal consists of a tubular rubber seal in the interior of which a hollow chamber is formed and which carries a felt ring.
  • the felt ring is mounted in a receiving groove of the rubber seal. In this seal arrangement, however, the relatively large sealing surface of the felt ring also adversely affects the start-up behavior of the drum.
  • the invention thus raises the problem of designing a sealing arrangement for the gap between the fixed component and the rotating drum, with which greater tolerance differences are to be compensated for and the start-up behavior of the drum is improved while the sealing effect remains the same.
  • the achievable with the present invention consist in particular in the high tolerance compensation in the gap by the arrangement of a rubber ring with a hollow chamber and in the special design of the sealing lips, which are interconnected by a support web and enclose the hollow chamber of the rubber ring.
  • the hollow chamber advantageously has an approximately triangular cross-section.
  • the sealing lips, which enclose the hollow chamber together with the support web, are advantageously arranged in an angle range between 30 ° and 50 ° to each other.
  • the support web connects the sealing lips arranged at an angle to each other, so that an approximately triangular hollow profile is formed.
  • the support bar is advantageously formed with a bending zone.
  • FIG. 1 An embodiment of the invention is in the drawing FIG. 1 shown purely schematically and will be described in more detail below.
  • FIG. 1 is the rotating drum of a clothes dryer designated 1 and shown in fragmentary form.
  • the drum 1 is mounted in a manner not shown in the region of the front side filling opening.
  • the radial gap between the rotating drum 1 and the fixed annular member 2 is sealed by means of the seal 3.
  • the seal 3 is formed as a rubber ring and has a hollow chamber 4.
  • the hollow chamber 4 is surrounded by two approximately v-shaped sealing lips 5, 6 and a sealing lips 5, 6 connecting at their free ends supporting web 7.
  • the profile of the seal 3 has an approximately triangular cross-section.
  • the sealing lips 5, 6, which enclose the hollow chamber 4 together with the support web 7, are advantageously arranged in an angle range between 30 ° and 50 ° to each other.
  • the support web 7 connects the angularly arranged sealing lips 5, 6, so that an approximately triangular hollow profile is formed.
  • the support web 7 is formed with a bending zone 8.
  • the sealing profile is attached to the fixed annular member 2 via an extended portion 5 ', which projects beyond the free end of the first sealing lip 5 also.
  • the second sealing lip 6 carries the textile covering 9, which forms the sealing surface to the rotating drum 1.
  • the textile covering 9 is sewn in the example shown in the region of the seam line 10 with the sealing profile.
  • the seam line 10 is in the region of the abutting Sealing lips 5, 6 or at the base of the V-shaped arrangement.
  • the covering 9 can also be fixed on the sealing profile by other suitable types of fastening (eg gluing).
  • fastening eg gluing
  • the sealing lips 5, 6 are pressed together slightly, so that the textile coating 9 comes under pretension on the drum 1 to the plant.
  • the bending zone 8 of the support web 7 supports the spring action of the sealing profile.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
  • Sealing Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A seal (3) for a wash drier lies between a fixed circular component (2) sealing surface and the rotating drum (1) sealing surface (2), carries the drum wall textile cover and comprises a hollow rubber ring whose hollow chamber (14) is enclosed by two V-shaped lips (5,6) and an end connecting support (7).

Description

Die Erfindung betrifft eine Dichtung für einen Wäschetrockner, die im Spalt zwischen einem ringförmigen feststehenden Bauteil mit einer koaxial zur rotierenden Trommel ausgerichteten Dichtfläche und einer ringförmigen Dichtfläche der rotierenden Trommel angeordnet ist und einen zur Trommel gewandten textilen Belag trägt.The invention relates to a seal for a tumble dryer, which is arranged in the gap between an annular fixed component with a coaxial with the rotating drum aligned sealing surface and an annular sealing surface of the rotating drum and carries a drum facing textile coating.

Eine derartige Dichtung für die Trommel eines Wäschetrockners ist aus der DE 199 07 602 C2 bekannt. Die Dichtung ist im Spalt zwischen einem ringförmigen feststehenden Gehäuseteil mit einer koaxial zur rotierenden Trommel ausgerichteten Dichtfläche und einer ringförmigen Dichtfläche der rotierenden Trommel angeordnet und besteht aus einem profilartig gestalteten Tragring mit einem textilen Belag. Das Profil des Tragringes ist im Querschnitt L-förmig ausgebildet ist, wobei der an der koaxial zur rotierenden Trommel angeordnete Schenkel den textilen Belag trägt. Die Dichtung füllt in diesem Bereich den radialen Spalt zwischen drehender Trommel und feststehendem Gehäuseteil.Such a seal for the drum of a tumble dryer is from the DE 199 07 602 C2 known. The seal is arranged in the gap between an annular stationary housing part with a coaxial with the rotating drum aligned sealing surface and an annular sealing surface of the rotating drum and consists of a profile-like shaped support ring with a textile covering. The profile of the support ring is formed in cross-section L-shaped, wherein the arranged on the coaxial with the rotating drum leg carries the textile covering. The seal fills the radial gap between the rotating drum and the stationary housing part in this area.

Eine weitere Dichtung für einen Wäschetrockner ist aus der DE 17 10 551 B bekannt. Die Trommel ist dabei im frontseitigen Bereich über einen am feststehenden Gehäuseteil an der Vorderwand angebrachten Flansch und einen rings um die Beschickungsöffnung der Trommel angeordneten Lagerring gelagert. Die Dichtung besteht aus einem ringförmigen Pressteil, welches am feststehenden Gehäuseteil gesichert ist, sowie aus einem Filzring, der an der radial äußeren Wand des Flansches angeklebt ist.Another seal for a tumble dryer is from the DE 17 10 551 B known. The drum is mounted in the front area via a mounted on the fixed housing part on the front wall flange and a ring arranged around the feed opening of the drum bearing ring. The seal consists of an annular pressing member which is secured to the fixed housing part, as well as a felt ring, which is glued to the radially outer wall of the flange.

Bei derartigen Dichtungsanordnungen ist der dichtende Abschluss zwischen feststehendem Gehäuseteil und drehender Trommel bedingt durch mögliche Verschleißerscheinungen nicht immer über die gesamte Lebensdauer des Gerätes gewährleistet. Die relativ große Kontaktfläche von Dichtung und rotierender Trommel erfordert ein hohes Anlaufmoment für die Trommel. Außerdem können mit diesen Dichtungsanordnungen keine großen Toleranzunterschiede im Spaltmaß zwischen Trommel und feststehendem Gehäuseteil ausgeglichen werden.In such sealing arrangements of the sealing closure between the fixed housing part and rotating drum due to possible signs of wear is not always guaranteed over the entire life of the device. The relatively large contact surface of seal and rotating drum requires a high starting torque for the drum. In addition, no large tolerance differences in the gap between the drum and the stationary housing part can be compensated with these sealing arrangements.

Zum Ausgleich größerer Toleranzen ist die aus der DE 26 01 733 C2 bekannte Dichtungsanordnung geeignet. Die axial wirkende Dichtung ist im Spalt zwischen rückseitiger Trommelstirnseite und feststehender Gehäusewand angeordnet. Die Dichtung besteht aus einer schlauchförmigen Gummidichtung in deren Inneren eine Hohlkammer ausgebildet ist und die einen Filzring trägt. Der Filzring ist in einer Aufnahmenut der Gummidichtung befestigt. Bei dieser Dichtungsanordnung wirkt sich jedoch auch die relativ große Dichtfläche des Filzringes nachteilig auf das Anlaufverhalten der Trommel aus.To compensate for larger tolerances is from the DE 26 01 733 C2 known seal arrangement suitable. The axially acting seal is arranged in the gap between the rear drum front side and fixed housing wall. The seal consists of a tubular rubber seal in the interior of which a hollow chamber is formed and which carries a felt ring. The felt ring is mounted in a receiving groove of the rubber seal. In this seal arrangement, however, the relatively large sealing surface of the felt ring also adversely affects the start-up behavior of the drum.

Der Erfindung stellt sich somit das Problem, eine Dichtungsanordnung für den Spalt zwischen feststehendem Bauteil und der rotierenden Trommel zu gestalten, mit der größere Toleranzunterschiede auszugleichen sind und das Anlaufverhalten der Trommel bei gleich bleibender Dichtwirkung verbessert wird.The invention thus raises the problem of designing a sealing arrangement for the gap between the fixed component and the rotating drum, with which greater tolerance differences are to be compensated for and the start-up behavior of the drum is improved while the sealing effect remains the same.

Erfindungsgemäß wird dieses Problem durch eine Dichtung mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by a seal having the features of patent claim 1. Advantageous embodiments and further developments of the invention will become apparent from the following subclaims.

Die mit der Erfindung erreichbaren Vorteile bestehen insbesondere in dem hohen Toleranzausgleich im Spalt durch die Anordnung eines Gummiringes mit Hohlkammer und in der besonderen Ausbildung der Dichtlippen, welche durch einen Stützsteg miteinander verbunden sind und die Hohlkammer des Gummiringes einschließen. Die Hohlkammer weist vorteilhaft einen annähernd dreieckigen Querschnitt auf. Die Dichtlippen, welche die Hohlkammer zusammen mit dem Stützsteg einschließen, sind vorteilhaft in einem Winkelbereich zwischen 30° und 50° zueinander angeordnet. Der Stützsteg verbindet die im Winkel zueinander angeordneten Dichtlippen, so dass ein annähernd dreieckiges Hohlprofil gebildet wird. Der Stützsteg ist vorteilhaft mit einer Knickzone ausgebildet.The achievable with the present invention consist in particular in the high tolerance compensation in the gap by the arrangement of a rubber ring with a hollow chamber and in the special design of the sealing lips, which are interconnected by a support web and enclose the hollow chamber of the rubber ring. The hollow chamber advantageously has an approximately triangular cross-section. The sealing lips, which enclose the hollow chamber together with the support web, are advantageously arranged in an angle range between 30 ° and 50 ° to each other. The support web connects the sealing lips arranged at an angle to each other, so that an approximately triangular hollow profile is formed. The support bar is advantageously formed with a bending zone.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung Figur 1 rein schematisch dargestellt und wird nachfolgend näher beschrieben.An embodiment of the invention is in the drawing FIG. 1 shown purely schematically and will be described in more detail below.

In der Figur 1 ist die drehende Trommel eines Wäschetrockners mit 1 bezeichnet und ausschnittsweise dargestellt. Die Trommel 1 ist in nicht näher dargestellter Weise im Bereich der frontseitigen Einfüllöffnung gelagert. Der radiale Spalt zwischen drehender Trommel 1 und feststehendem ringförmigen Bauteil 2 wird mittels der Dichtung 3 abgedichtet. Die Dichtung 3 ist als Gummiring ausgebildet und weist eine Hohlkammer 4 auf. Die Hohlkammer 4 wird von zwei annähernd v-förmig zueinander angeordneten Dichtlippen 5, 6 sowie einem die Dichtlippen 5, 6 an ihren freien Enden verbindenden Stützsteg 7 umschlossen. Das Profil der Dichtung 3 weist einen annähernd dreieckigen Querschnitt auf.In the FIG. 1 is the rotating drum of a clothes dryer designated 1 and shown in fragmentary form. The drum 1 is mounted in a manner not shown in the region of the front side filling opening. The radial gap between the rotating drum 1 and the fixed annular member 2 is sealed by means of the seal 3. The seal 3 is formed as a rubber ring and has a hollow chamber 4. The hollow chamber 4 is surrounded by two approximately v-shaped sealing lips 5, 6 and a sealing lips 5, 6 connecting at their free ends supporting web 7. The profile of the seal 3 has an approximately triangular cross-section.

Die Dichtlippen 5, 6, welche die Hohlkammer 4 zusammen mit dem Stützsteg 7 einschließen, sind vorteilhaft in einem Winkelbereich zwischen 30° und 50° zueinander angeordnet. Der Stützsteg 7 verbindet die im Winkel zueinander angeordneten Dichtlippen 5, 6, so dass ein annähernd dreieckiges Hohlprofil gebildet wird. Der Stützsteg 7 ist mit einer Knickzone 8 ausgebildet. Das Dichtprofil ist an dem feststehenden ringförmigen Bauteil 2 über einen verlängerten Abschnitt 5', welcher über das freie Ende der ersten Dichtlippe 5 hinaus ragt, befestigt. Die zweite Dichtlippe 6 trägt den textilen Belag 9, welcher die Dichtfläche zur drehenden Trommel 1 bildet. Der textile Belag 9 ist in dem gezeigten Beispiel im Bereich der Nahtlinie 10 mit dem Dichtprofil vernäht. Die Nahtlinie 10 liegt im Bereich der aneinanderstoßenden Dichtlippen 5, 6 bzw. an der Basis der v-förmigen Anordnung. Der Belag 9 kann jedoch auch durch andere geeignete Befestigungsarten (z. B. Kleben) auf dem Dichtprofil fixiert werden. In Einbaulage im Spalt zwischen Trommel 1 und Bauteil 2 werden die Dichtlippen 5, 6 leicht zusammen gedrückt, so dass der textile Belag 9 unter Vorspannung an der Trommel 1 zur Anlage kommt. Die Knickzone 8 des Stützsteges 7 unterstützt die Federwirkung des Dichtprofils.The sealing lips 5, 6, which enclose the hollow chamber 4 together with the support web 7, are advantageously arranged in an angle range between 30 ° and 50 ° to each other. The support web 7 connects the angularly arranged sealing lips 5, 6, so that an approximately triangular hollow profile is formed. The support web 7 is formed with a bending zone 8. The sealing profile is attached to the fixed annular member 2 via an extended portion 5 ', which projects beyond the free end of the first sealing lip 5 also. The second sealing lip 6 carries the textile covering 9, which forms the sealing surface to the rotating drum 1. The textile covering 9 is sewn in the example shown in the region of the seam line 10 with the sealing profile. The seam line 10 is in the region of the abutting Sealing lips 5, 6 or at the base of the V-shaped arrangement. However, the covering 9 can also be fixed on the sealing profile by other suitable types of fastening (eg gluing). In installation position in the gap between the drum 1 and component 2, the sealing lips 5, 6 are pressed together slightly, so that the textile coating 9 comes under pretension on the drum 1 to the plant. The bending zone 8 of the support web 7 supports the spring action of the sealing profile.

Claims (3)

  1. Seal (3) for a tumble drier, said seal being arranged in the gap between an annular fixed component (2) comprising a sealing surface, which is aligned coaxially with the rotating drum (1), and an annular sealing surface of the rotating drum (1), and carrying a textile coating (9) which faces the drum,
    characterised in that the seal is arranged on the sealing surface of the annular component (2) and is configured as a rubber ring having a hollow profile, the hollow chamber (4) of which ring is surrounded by two sealing lips (5, 6) arranged approximately in a V-shape relative to one another and a support web (7) connecting the sealing lips (5, 6) in the region of their free ends, the sealing lip (6) which faces the rotating drum (1) carrying the textile coating (9).
  2. Seal for a tumble drier according to claim 1,
    characterised in that the support web (7) comprises a bent region (8).
  3. Seal for a tumble drier according to either claim 1 or claim 2,
    characterised in that the sealing lip (5) comprises an extended portion (5') projecting beyond the free end for fastening on the fixed component (2), and in that the textile coating (9) is sewn along the seam line (10) in the region of the mutually abutting sealing lips (5, 6).
EP06024009A 2005-11-23 2006-11-20 Seal for a laundry drier Not-in-force EP1790768B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06024009T PL1790768T3 (en) 2005-11-23 2006-11-20 Seal for a laundry drier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005056140A DE102005056140B3 (en) 2005-11-23 2005-11-23 Seal for a wash drier has hollow rubber ring seal with hollow enclosed by two V-shaped sealing lips and an end support part

Publications (3)

Publication Number Publication Date
EP1790768A2 EP1790768A2 (en) 2007-05-30
EP1790768A3 EP1790768A3 (en) 2007-08-08
EP1790768B1 true EP1790768B1 (en) 2010-03-31

Family

ID=37387957

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06024009A Not-in-force EP1790768B1 (en) 2005-11-23 2006-11-20 Seal for a laundry drier

Country Status (5)

Country Link
EP (1) EP1790768B1 (en)
AT (1) ATE462817T1 (en)
DE (2) DE102005056140B3 (en)
ES (1) ES2339962T3 (en)
PL (1) PL1790768T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101147775B1 (en) 2009-12-15 2012-05-29 엘지전자 주식회사 Control method of clothes treatment apparatus
DE102010028492A1 (en) * 2010-05-03 2011-11-03 BSH Bosch und Siemens Hausgeräte GmbH Domestic appliance for the care of laundry with a drum for holding the laundry items
DE102010016795B4 (en) * 2010-05-05 2012-03-29 Miele & Cie. Kg Drum Dryer
DE102011005889B4 (en) * 2011-03-22 2020-07-23 BSH Hausgeräte GmbH Front loading washing machine with a cuff
DE102012212739A1 (en) * 2012-07-19 2014-01-23 BSH Bosch und Siemens Hausgeräte GmbH Dryer with bearing plate with thermal insulation as well as suitable bearing plate
KR102605672B1 (en) * 2018-02-23 2023-11-24 삼성전자주식회사 Clothes dryer
US11795601B2 (en) 2020-11-10 2023-10-24 Whirlpool Corporation Maximizing the dry rate of clothes tumbling combination washer/dryer with a seal
US11846059B2 (en) 2021-01-04 2023-12-19 Whirlpool Corporation Controlling process air bypass around the drum in combo wash-dry system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1710551B2 (en) * 1968-02-12 1980-12-04 T.I. Domestic Appliances Ltd., London Drum dryer
DE2601733C2 (en) * 1976-01-19 1982-10-07 Miele & Cie GmbH & Co, 4830 Gütersloh Seal for a drum dryer
DE19907602C2 (en) * 1999-02-22 2002-08-01 Miele & Cie Seal for a clothes dryer

Also Published As

Publication number Publication date
PL1790768T3 (en) 2010-09-30
EP1790768A3 (en) 2007-08-08
ES2339962T3 (en) 2010-05-27
EP1790768A2 (en) 2007-05-30
DE102005056140B3 (en) 2006-11-30
DE502006006566D1 (en) 2010-05-12
ATE462817T1 (en) 2010-04-15

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