EP2850239A1 - Wäschebehandlungsmaschine - Google Patents
WäschebehandlungsmaschineInfo
- Publication number
- EP2850239A1 EP2850239A1 EP13720949.0A EP13720949A EP2850239A1 EP 2850239 A1 EP2850239 A1 EP 2850239A1 EP 13720949 A EP13720949 A EP 13720949A EP 2850239 A1 EP2850239 A1 EP 2850239A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laundry
- foam
- treatment machine
- drum
- laundry drum
- 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
Links
- 239000006260 foam Substances 0.000 claims abstract description 90
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 235000010678 Paulownia tomentosa Nutrition 0.000 claims 1
- 240000002834 Paulownia tomentosa Species 0.000 claims 1
- 239000006261 foam material Substances 0.000 abstract 5
- 238000000034 method Methods 0.000 description 17
- 238000007789 sealing Methods 0.000 description 13
- 238000005406 washing Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000012791 sliding layer Substances 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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
- D06F37/26—Casings; Tubs
- D06F37/266—Gaskets mounted between tub and casing around the loading opening
-
- 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 laundry treatment machine with a laundry drum, which is rotatably mounted in a housing about a drum axis, wherein between a peripheral part of the laundry drum rotating laundry drum and a fixed surface of a component of the housing, an annular foam gasket is arranged on the surface of the Part fixed and sealingly guided on the laundry drum.
- Laundry treatment machines are generally known as washing machines, as machines for the professional cleaning of textiles or as tumble dryers.
- the laundry drum of such laundry machines designed as washing machines can have an end-side charging opening and in this case is mounted on its end remote from the charging opening via a shaft journal in the housing of the laundry treatment machine.
- types of washing machines are known in which the laundry drum rotates about a substantially vertically extending drum axis, wherein the laundry drum is charged from above.
- washing machines which can be loaded from above with laundry items can also have a laundry drum mounted above a horizontal drum axis, which can then be opened and re-closed for loading with laundry items on its outer jacket.
- laundry treatment machines are designed as a tumble dryer, in which the laundry drum heated process air is supplied. This may optionally be an exhaust air dryer or a condensation dryer. Modern condensation dryers are usually operated with a heat pump.
- tumble dryers the laundry drum is usually arranged in the housing in such a way that it rotates about a horizontally extending drum axis and has a front-side charging opening.
- Such a laundry drum of a clothes dryer is usually guided at its rear end wall by means of a hinge bearing on the housing and also stored at its front end using a bearing plate by means of rollers in the housing.
- a laundry treatment machine of the type described above is known from EP 2 072 657 A1.
- a bearing plate is provided with a groove for receiving a drum seal.
- the groove bottom of this groove should be provided with a wedge-shaped toothing, said toothing should prevent co-rotation of the seal. It is intended to make this seal either foam or a combination of foam and felt.
- a laundry dryer laundry treatment machine also known as a laundry dryer laundry treatment machine known in which a channel for the process air of the dryer is connected via provided in the front-side rear wall of the laundry drum openings with the interior of the laundry drum.
- the heated process air then flows through the interior of the laundry drum and thereby absorbs the moisture of the items of laundry present in the laundry drum, whereupon the process air leaves again in the region of a door closing a loading opening of the laundry drum via a channel provided in this area.
- a sealing ring should be provided between a bottom wall of the laundry drum and a cup-shaped flange connected to the housing, which radially surrounds the region of the feed line of the process air into the laundry drum.
- this sealing ring should be formed as a profile ring on which an elastic lip is provided. Both the main body of the profile ring and the elastic lip should be made of rubber. Alternatively, it is also provided to produce a corresponding sealing ring for the supply of process air from a nitrile rubber material and a felt strip attached thereto. The felt strip should lie sealingly against a bead of the laundry drum.
- a tumble dryer with a seal arrangement between the tumble dryer housing and a rear end wall of the laundry drum is known in which a felt ring seal is glued into a U-shaped receiving groove made of rubber or plastic mechanical sealant.
- This mechanical seal carrier is formed in a lying S-shape, wherein a foam ring is applied to an underside of the U-shaped receiving groove. The foam ring is to transmit the contact forces required to achieve the sealing function on the felt ring seal and is guided for this purpose at an angling of a foot part and at an end portion of a web of the mechanical seal carrier.
- the foam seal should be made of an open-cell foam and abut a sliding surface on a contact surface of the peripheral part of the laundry drum and it is intended to provide the annular foam seal on at least one of its annular end faces with an air and / or water impermeable coating be.
- foam or a combination of foam and felt is used as the material for the sealing ring; but it is a closed-cell foam used, which is both impermeable to air and water, so that the desired sealing effect can be achieved.
- closed-pore foams which are substantially impermeable to air and water, have a relatively high compressive strength, which requires a relatively high force to compress the gasket.
- the foam gasket has no uniform surface according to the present invention.
- DE 81 36 238 U1 gives no indication to use a foam seal of an open-cell foam for the seal assembly.
- the foam ring according to this publication should not assume a sealing function, but only pretension the felt-ring seal in the direction of the sealing surface. Therefore, a sliding surface is not formed directly on the foam ring, which is also to be avoided according to this document.
- the distance to the foam ring extending sliding ring seal carrier is to reduce its thermal load by the dry air flow, which is why a corresponding space is provided between an end face of the foam ring and the web of the mechanical seal carrier.
- the further documents DE 195 03 367 C2 and DE 10 2005 009 230 B4 show sealing arrangements in which the respective seal is not made of foam.
- the friction occurring between the foam gasket and the frontal or peripheral rotationally symmetric part of the laundry drum is reduced by the open cell foam having a low compression hardness so that the elastic foam gasket created thereby bears against the rotationally symmetric part of the laundry drum with little biasing force. Furthermore, the friction is reduced by the fact that the voltage applied to the contact surface of the part of the laundry drum surface of the foam seal is formed as a sliding surface.
- the foam seal may also be provided on its radially inner lateral surface with a corresponding coating.
- the open-cell foam of the foam seal should have a foam density defined by a density of 25 to 45 kg / m 3 .
- the compressive strength should be 1, 8 to 5 kPa.
- the laundry drum can be rotatably mounted about a substantially horizontal drum axis and have a feed opening on one end face.
- a foam seal between a fixed to a front wall of the laundry treating machine bearing plate and the laundry drum is provided and / or provided a foam seal between a rear edge of the laundry drum and a rear wall of the housing. It depends on the area in which the region or channel connected to the interior of the laundry drum is to be sealed relative to the interior of the housing.
- a corresponding open-cell foam gasket with an air and / or water impermeable coating and a sliding surface for use in a laundry dryer designed as a laundry machine.
- a foam seal between a rear wall of the tumble dryer and the peripheral part of the laundry drum and / or a foam seal between a front edge of the laundry drum and a housing connected to the front wall bearing plate are provided.
- the sealed on its surface foam seal prevents in this case that the entering or leaving the laundry drum process air can get into the housing interior of the clothes dryer. A leak in the area of entry of the process Otherwise, air leakage would lead to a worsening of the drying result.
- the inventively embodied foam gasket ensures that these problems can not occur, in addition to the effective sealing of inlet and outlet of the process air and an operation of the tumble dryer can be achieved with low friction losses.
- the coating should be formed as a film, which is attached in a corresponding manner at least to one of the two end faces of the foam gasket. It will preferably be the end face of the foam gasket, which faces the space or channel to be sealed.
- it is possible to produce the coating by melting the annular surface of the foam seal.
- the radially inner surface of the foam seal may be provided by melting with a coating, if this proves to be useful.
- These may be flexible elastomers, e.g. Silicone or neoprene act.
- the sliding surface may be made of a felt-impregnated felt, by which advantageous sliding properties between the foam seal and the laundry drum can be achieved.
- the foam gasket should be arranged in an annular groove of the bearing plate or the housing, so that the foam gasket has sufficient lateral guidance.
- Figure 1 as a schematic sectional view one in a housing of a
- Tumble dryer arranged laundry drum which is sealed in the region of a rear wall of the housing and in the region of a feed opening by means of foam gaskets and
- FIG. 2 shows an enlarged detail according to the detail II in FIG. 1 in FIG.
- FIG. 1 denoted by 1 is a tumble dryer intended for use in a household, which has a housing 2 and a laundry drum 3 mounted rotatably about the drum axis 3a.
- the laundry drum 3 is mounted in a front area via a roller bearing 4 in the housing 2 and guided on its rear wall 5 via a spherical plain bearing 6 on the housing 2.
- the laundry drum 3 has a front-side charging opening 7, which is substantially aligned with a charging opening 8 provided in the housing 2.
- the charging opening 8 of the housing 2 can be closed by a door 9, wherein in the region of this door 9 a through the housing 2 and the washing drum 3 limited exhaust duct 10 is provided for emerging from the laundry drum 3 process air.
- the exhaust air duct 10 is sealed radially by a first foam seal 1 1.
- openings 12 are provided in the rear wall 5 of the laundry drum, is passed through the heated process air into the interior of the laundry drum 3.
- These heated process air is conveyed by means of a process air blower not shown and passes through a rear wall 5 adjacent supply air duct 13 and via the aforementioned openings 12 in the interior of the laundry drum 3, flows through this, where it absorbs moisture from the laundry, and then passes on the Beschi - ckungsö réelle 7 in the direction of the exhaust duct 10 from the laundry drum.
- the supply air duct 13 is delimited by the rear wall 5 and the adjacent wall section of the housing 2, wherein it is radially sealed in this area by a second foam gasket 14 arranged spatially between the housing 2 and the laundry drum 3.
- a second foam gasket 14 arranged spatially between the housing 2 and the laundry drum 3.
- FIG. 2 in which it is shown enlarged.
- the foam seal 1 1 should be formed in this way and arranged in at least similar form between the laundry drum 3 and the housing.
- the foam gasket 1 1 may be included by a bearing shield, not shown.
- FIG. 2 shows how the edge 15 rests against the sliding surface formed as a sliding layer 16 of the foam seal 14.
- the foam seal 14 is arranged in a groove 17 of an outgoing from the housing 2 component 18.
- the sliding layer of Gleit Structurel 6 is made of a felt impregnated with Teflon felt, whereby optimal sliding properties against the edge 15 of the laundry drum are created.
- the foam gasket 14 is provided at its annular end faces 19 and 20 each with a coating 21 and 22. Since the foam gasket 14 is made of an open-cell foam with a relatively low compression hardness, the sliding surface 15 bears against the edge 15 of the laundry drum 3 with little radial prestressing, which additionally reduces the friction.
- the open-pored foam for this purpose is permeable to air, so that a use of such as provided for Figure 1 foam seal 1 1 without the coatings of the invention would cause moist exhaust air from the Exhaust duct 10 passes into the interior of the housing 2, so that moisture could be reflected there.
- the foam gasket 14 were similarly made from an open cell foam and not coated on its surface, some of the supply air could escape through this foam gasket 14, which is not available for laundry drying.
- the solution according to the invention therefore provides, in addition to an increase in the elasticity of the corresponding foam gasket 1 1 or 14, its air and / or water impermeable coating 21 and 22. This can be designed as a film, melting of the foam or applied in the liquid state sealant.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012207977A DE102012207977A1 (de) | 2012-05-14 | 2012-05-14 | Wäschebehandlungsmaschine |
PCT/EP2013/059448 WO2013171091A1 (de) | 2012-05-14 | 2013-05-07 | Wäschebehandlungsmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2850239A1 true EP2850239A1 (de) | 2015-03-25 |
EP2850239B1 EP2850239B1 (de) | 2016-04-06 |
Family
ID=48325720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13720949.0A Active EP2850239B1 (de) | 2012-05-14 | 2013-05-07 | Wäschebehandlungsmaschine |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2850239B1 (de) |
CN (1) | CN104321482B (de) |
DE (1) | DE102012207977A1 (de) |
PL (1) | PL2850239T3 (de) |
RU (1) | RU2597293C2 (de) |
WO (1) | WO2013171091A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017211719A1 (en) | 2016-06-08 | 2017-12-14 | Arcelik Anonim Sirketi | A washer / dryer wherein air and water tightness is provided between the tub and the drum |
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 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2829652A1 (de) * | 2013-07-24 | 2015-01-28 | Vereinigte Filzfabriken AG | Dichtung für einen Wäschetrockner |
DE102014202237A1 (de) * | 2014-02-07 | 2015-08-13 | BSH Bosch und Siemens Hausgeräte GmbH | Wäschebehandlungsmaschine mit einer Wäschetrommel |
DE102014205636A1 (de) * | 2014-03-26 | 2015-10-01 | Aktiebolaget Skf | Dichtung |
US20160258097A1 (en) * | 2015-03-06 | 2016-09-08 | Hg LAUNDRY SYSTEMS, LLC | Washing machine with positive pressure moisture extraction |
CN106283561B (zh) * | 2015-05-29 | 2019-12-17 | 无锡小天鹅电器有限公司 | 干衣机 |
ITUA20161734A1 (it) * | 2016-03-16 | 2017-09-16 | I F T Manifatture S R L | Dispositivo a guarnizione |
CN106049001B (zh) * | 2016-07-29 | 2020-01-17 | 无锡小天鹅电器有限公司 | 干衣机 |
CN108729167A (zh) * | 2017-04-20 | 2018-11-02 | 青岛海尔滚筒洗衣机有限公司 | 一种干衣机 |
EP3832003A4 (de) * | 2018-07-30 | 2022-05-25 | LG Electronics Inc. | Kleidungsbehandlungsvorrichtung |
EP3741898B1 (de) * | 2019-05-21 | 2023-08-02 | BSH Hausgeräte GmbH | Vorrichtung zum waschen und trocknen von zu waschenden und zu trocknenden objekten und verfahren zum betreiben einer solchen vorrichtung |
DE102020205594A1 (de) | 2020-05-04 | 2021-11-04 | BSH Hausgeräte GmbH | Wäschebehandlungsmaschine mit einem gehäuse und einer wärmepumpe |
KR102561643B1 (ko) * | 2023-03-20 | 2023-07-28 | 박상옥 | 드럼건조기의 회전드럼 단부용 개스킷 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3637224A (en) * | 1969-02-27 | 1972-01-25 | Fedders Corp | Annular sealing ring |
US3816942A (en) * | 1972-07-24 | 1974-06-18 | Maytag Co | Bulkhead seal for clothes dryer |
DE8136238U1 (de) * | 1981-12-12 | 1982-05-27 | G. Bauknecht Gmbh, 7000 Stuttgart | Waeschetrockner |
DE8214637U1 (de) * | 1982-05-19 | 1982-08-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Dichtung fuer einen trommeltrockner |
US5363569A (en) * | 1993-03-11 | 1994-11-15 | White Consolidated Industries, Inc. | Bearing and seal assembly for clothes dryer drum |
DE19503367C2 (de) | 1995-02-02 | 2002-04-25 | Bsh Bosch Siemens Hausgeraete | Dichtungsanordnung für einen Haushalt-Wäschetrockner |
US20020004128A1 (en) * | 1998-05-28 | 2002-01-10 | Anthony Forte | Method and system for sealing electrical connection using sealant-impregnated foam |
JP4912588B2 (ja) * | 2004-12-24 | 2012-04-11 | 日東電工株式会社 | エチレン・プロピレン・ジエンゴム連続気泡発泡体 |
DE102005009230B4 (de) | 2005-02-25 | 2008-12-24 | Jensen-Senking Gmbh | Trocknungsanlage mit einer Trocknerdichtung und Zentriermitteln |
US20070044342A1 (en) * | 2005-08-01 | 2007-03-01 | John Burns | Dryer seal |
JP4857197B2 (ja) * | 2007-06-04 | 2012-01-18 | 日立アプライアンス株式会社 | ドラム式洗濯機 |
DE102007061983A1 (de) * | 2007-12-21 | 2009-06-25 | BSH Bosch und Siemens Hausgeräte GmbH | Lagerschild für einen Wäschetrockner und Wäschetrockner |
DE102008043348A1 (de) * | 2008-10-31 | 2010-05-06 | BSH Bosch und Siemens Hausgeräte GmbH | Anordnung mit zumindest zwei luftführenden Teilen und einer dazwischen angeordneten Dichtung sowie Hausgerät mit einer derartigen Anordnung |
CN201546067U (zh) * | 2009-10-30 | 2010-08-11 | 南京乐金熊猫电器有限公司 | 滚筒洗衣机密封圈 |
-
2012
- 2012-05-14 DE DE102012207977A patent/DE102012207977A1/de not_active Withdrawn
-
2013
- 2013-05-07 PL PL13720949.0T patent/PL2850239T3/pl unknown
- 2013-05-07 CN CN201380025360.0A patent/CN104321482B/zh active Active
- 2013-05-07 WO PCT/EP2013/059448 patent/WO2013171091A1/de active Application Filing
- 2013-05-07 RU RU2014146259/12A patent/RU2597293C2/ru not_active IP Right Cessation
- 2013-05-07 EP EP13720949.0A patent/EP2850239B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2013171091A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017211719A1 (en) | 2016-06-08 | 2017-12-14 | Arcelik Anonim Sirketi | A washer / dryer wherein air and water tightness is provided between the tub and the drum |
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 |
Also Published As
Publication number | Publication date |
---|---|
CN104321482B (zh) | 2016-11-16 |
DE102012207977A1 (de) | 2013-11-14 |
RU2597293C2 (ru) | 2016-09-10 |
WO2013171091A1 (de) | 2013-11-21 |
CN104321482A (zh) | 2015-01-28 |
EP2850239B1 (de) | 2016-04-06 |
RU2014146259A (ru) | 2016-07-10 |
PL2850239T3 (pl) | 2016-10-31 |
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