EP2631355A1 - Dichtungssystem für eine offene Stirnseite einer Drehtrommel - Google Patents

Dichtungssystem für eine offene Stirnseite einer Drehtrommel Download PDF

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Publication number
EP2631355A1
EP2631355A1 EP12157188.9A EP12157188A EP2631355A1 EP 2631355 A1 EP2631355 A1 EP 2631355A1 EP 12157188 A EP12157188 A EP 12157188A EP 2631355 A1 EP2631355 A1 EP 2631355A1
Authority
EP
European Patent Office
Prior art keywords
gasket
ring
laundry
seat
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
Application number
EP12157188.9A
Other languages
English (en)
French (fr)
Other versions
EP2631355B1 (de
Inventor
Marco Costantin
Marco Santarossa
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP12157188.9A priority Critical patent/EP2631355B1/de
Priority to PCT/EP2013/053734 priority patent/WO2013127747A1/en
Publication of EP2631355A1 publication Critical patent/EP2631355A1/de
Application granted granted Critical
Publication of EP2631355B1 publication Critical patent/EP2631355B1/de
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 

Definitions

  • the present invention relates to a gasket system for an open face side of a rotating drum, in particular for a rear side of a laundry drum. Further, the present invention relates to a laundry dryer with a gasket system for an open rear side of a laundry drum.
  • the laundry drum is formed as a cylinder barrel with an open front face side and an open rear face side.
  • the front opening of the laundry drum is provided for loading laundry.
  • the rear opening of the laundry drum is covered by a rear bulk head attached at a rear cabinet wall of the laundry dryer.
  • a perforated central portion of the rear bulk head is provided for blowing hot air into the laundry drum.
  • annular gasket is arranged between the rear opening of the laundry drum and the rear bulk head.
  • the annular gasket does not rotate with the laundry drum.
  • the annular gasket is fitted at the bulk head or at the rear wall by a metal band enclosing circumferentially said gasket.
  • the metal band is fixed at the bulk head or at the rear wall by tabs perpendicular to said band.
  • the band is clinched or screwed at the bulk head or at the rear wall, respectively.
  • WO 2010/077053 A2 discloses a laundry machine with two gaskets.
  • the one ring is provided for the front face side of the laundry drum.
  • the other ring is provided for the rear face side of the laundry drum.
  • US 2005/0108893 A1 discloses a laundry dryer with a rear supporter for covering the rear face side of the laundry drum.
  • the rear supporter is screwed at the rear wall of the cabinet.
  • the rear supporter acts as an adapter.
  • the object of the present invention is achieved by the gasket system according to claim 1.
  • the present invention relates to a gasket system for an open face side of a rotating drum, in particular for a rear side of a laundry drum, wherein
  • a ring is provided for seating a front gasket that abuts against the rotating rear side of a laundry drum.
  • the inventive gasket system allows a better air tight and heat insulation in the interface between the rear face side of the laundry drum and the rear bulk head.
  • the ring may be detachably fastened at the rear bulk head, so that a permanent fixation of said ring may be avoided.
  • the shape of the rear cabinet wall is independent of the dimensions of the ring. The same ring may be used for several laundry dryers with different rear cabinet walls.
  • the front gasket seat of the ring is formed as a circumferential U-shaped profile part, wherein the open side of said U-shaped profile part is directed to the rotating drum.
  • the gasket system includes an annular rear gasket adjacent to or attachable at a cover sheet for covering the open face side of the rotating drum.
  • the rear gasket is received or receivable by the rear gasket seat of the ring.
  • the rear gasket seat of the ring is formed as a circumferential U-shaped profile part, wherein the open side of said U-shaped profile part is directed or directional to the cover sheet.
  • the front gasket seat of the ring comprises at least one circumferential elongated projection inside said front gasket seat.
  • the front gasket comprises an elastomeric part and a felt part, wherein the felt part is directed to the rotating drum.
  • the at least one projection of the front gasket seat may be provided for squeezing the elastomeric part of the front gasket in order to fasten said front gasket in the front gasket seat.
  • the front gasket is completely received or receivable by the front gasket seat of the ring.
  • the rear gasket is partially received or receivable by the rear gasket seat of the ring.
  • the ring comprises at least one distance element directed or directional to the cover sheet.
  • the at least one distance element is marginally longer than the rear gasket seat respective the direction to the cover sheet.
  • the ring is made by a polymeric material, and further preferably, it is made by an injection moulding process.
  • the rotating drum is a laundry drum
  • the open face side is the rear face side of said laundry drum
  • the cover sheet is a rear bulk head and/or a rear cabinet wall of the laundry drum.
  • the present invention relates to a laundry dryer with a gasket system for an open rear side of a laundry drum, wherein the laundry dryer comprises a gasket system mentioned above.
  • the laundry dryer comprises a drying air circuit for cyclically recirculating air onto laundry contained inside the drum, said drying air circuit being provided with a heat pump arrangement for heating and removing moisture from air passed through laundry to be dried.
  • FIG 1 illustrates a perspective exploded side view of a gasket system for the rear side of a laundry drum 10 according to a preferred embodiment of the present invention.
  • the laundry drum 10 is substantially formed as a cylinder barrel.
  • the front face side and the rear face side comprise a round opening in each case.
  • the laundry drum 10 is made of metal, in particular of stainless steel.
  • the front opening of the laundry drum 10 is provided for loading laundry.
  • the rear opening of the laundry drum 10 is covered by a rear bulk head 12.
  • the rear bulk head 12 is attached at a rear cabinet wall 14 of a laundry dryer.
  • a perforated central portion of the rear bulk head 12 is provided for blowing hot air into the laundry drum 10.
  • Said perforated central portion of bulk head 12 can be arranged in fluid communication with a drying air circuit of a laundry dryer.
  • a gasket system is arranged between the laundry drum 10 and the bulk head 12.
  • the gasket system comprises a front gasket 16, and a ring 18.
  • the front gasket 16 and the ring 18 have an annular form in each case.
  • the ring 18 is fixed at the rear bulk head 12 and/or at the rear cabinet wall 14 by screws or other fastening means, like rivets, adhesive, welding.
  • the ring 18 includes a front gasket seat 22 that is provided for receiving the front gasket 16.
  • the front gasket 16 forms the connection between the rear face side of the laundry drum 10 and the ring 18.
  • the gasket system preferably comprises a rear gasket 20 having an annular form.
  • the ring 18 includes a rear gasket seat 24 that is provided for receiving the rear gasket 20.
  • the rear gasket 20 forms the connection between the plastic ring 18 and the rear bulk head 12.
  • the ring 18 may be made of a polymeric material rather than of metal. Further advantageously the polymeric, i.e. plastic, ring 18 may be made by an injection moulding process.
  • the whole gasket system i.e. the front gasket 16, the plastic ring 18 and also the rear gasket 20, if the latter is present, is stably fixed at the rear bulk head 12, so that the gasket system does not rotate with the laundry drum 10.
  • a plurality of ribs may be provided on the front gasket seat 22 of the ring 18. Said ribs protrude into the front gasket seat 22 and prevent the rotation of the front gasket 16.
  • FIG 2 illustrates a sectional side view of the laundry drum 10 with the gasket system according to the preferred embodiment of the present invention.
  • FIG 2 shows the structures of the rear bulk head 12 and the rear cabinet wall 14.
  • the rear bulk head 12 and the rear cabinet wall 14 are spaced apart one another at least in their central portions so as to form an air chamber 26 therebetween.
  • FIG 3 illustrates a detailed sectional side view of the gasket system for the rear side of the laundry drum 10 according to a preferred embodiment of the present invention.
  • FIG 3 clarifies the cross-sections of the front gasket 16, the ring 18 and the optional rear gasket 20.
  • the front gasket seat 22 of the ring 18 is formed as a circumferential U-shaped profile part, which open side is directed to the laundry drum 10 and to the front side of the laundry dryer.
  • the rear gasket seat 24 of the ring 18 is formed as a circumferential U-shaped profile part, which open side is directed to the rear cabinet wall 14 of the laundry dryer.
  • the cross-section of the front gasket seat 22 is bigger than the cross-section of the rear gasket seat 24.
  • the front gasket 16 is completely received by the front gasket seat 22.
  • the front gasket 16 preferably includes an elastomeric part 32 and a felt part 34.
  • the elastomeric part 32 forms the rear part of the front gasket 16.
  • the felt part 34 forms the front part of the front gasket 16.
  • the elastomeric part 32 of the front gasket 16 is hollow and has a rectangular cross-section.
  • the felt part 34 of the front gasket 16 is compact.
  • Two circumferential elongated projections 30 are inside the front gasket seat 22.
  • the projections 30 are at the inner side walls of the U-shaped profile part. The projections 30 squeeze the elastomeric part 32 of the front gasket 16 in order to fasten said front gasket 16 in the front gasket seat 22 of the plastic ring 18.
  • the rear gasket 20 is partially received by the rear gasket seat 24. A bigger portion of the rear gasket 20 is received by the rear gasket seat 24. A smaller portion of the rear gasket 20 projects out of the rear gasket seat 24 and is pressed against the rear bulk head 12.
  • the rear gasket 20 is compact.
  • the rear gasket seat 24 does not touch the rear bulk head 12.
  • the plastic ring 18 comprises two distance elements 28 at its rear side. The distance elements 28 extend rearwards and are arranged beside the rear gasket seat 24. The distance elements 28 touch the rear bulk head 12, so that the plastic ring 18 is supported by the rear bulk head 12 via the distance elements 28.
  • the fixation between the ring 18 and the rear bulk head 12 and/or the rear cabinet wall 14 is air-tight so as to avoid any air leakage.
  • the provision of a rear gasket 20 further enhances the air-tight connection between the ring 18 and the rear bulk head 12 and/or the rear cabinet wall 14.
  • the gasket system according to the present invention provides a better air tight and heat insulation in the interface between the rear face side of the laundry drum 10 and the rear bulk head 12.
  • the plastic ring 18 is detachably fastened at the rear bulk head 12, so that a permanent fixation of said plastic ring 18 is avoided.
  • the shape of the rear cabinet wall 14 is independent of the dimensions of the plastic ring 18. The same plastic ring 18 can be used for several laundry dryers with different rear cabinet walls 14.
  • FIG. 4 shows a perspective exploded side view of a laundry dryer 1 with a gasket system according to the invention.
  • Fig 4 clarifies how the drum 10 and the gasket system are arranged in the laundry dryer.
  • the front opening of the laundry drum 10 which is provided for loading laundry is arranged behind a door 2 pivotally mounted on the front wall 3 of the machine cabinet 4.
  • the laundry dryer 1 comprises a drying air circuit fro circulating air through the drum 10 so as to dry wet laundry contained therein.
  • the drying air circuit is provided with a heat pump arrangement for heating and removing moisture from air passed through laundry to be dried.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP12157188.9A 2012-02-27 2012-02-27 Dichtungssystem für eine offene Stirnseite einer Drehtrommel Active EP2631355B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12157188.9A EP2631355B1 (de) 2012-02-27 2012-02-27 Dichtungssystem für eine offene Stirnseite einer Drehtrommel
PCT/EP2013/053734 WO2013127747A1 (en) 2012-02-27 2013-02-25 A gasket system for an open face side of a rotating drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12157188.9A EP2631355B1 (de) 2012-02-27 2012-02-27 Dichtungssystem für eine offene Stirnseite einer Drehtrommel

Publications (2)

Publication Number Publication Date
EP2631355A1 true EP2631355A1 (de) 2013-08-28
EP2631355B1 EP2631355B1 (de) 2016-09-07

Family

ID=47748647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12157188.9A Active EP2631355B1 (de) 2012-02-27 2012-02-27 Dichtungssystem für eine offene Stirnseite einer Drehtrommel

Country Status (2)

Country Link
EP (1) EP2631355B1 (de)
WO (1) WO2013127747A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
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

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027653A (en) * 1958-05-14 1962-04-03 Gen Motors Corp Domestic appliance
US3570138A (en) * 1968-11-12 1971-03-16 Blackstone Corp Clothes dryers
US3816942A (en) * 1972-07-24 1974-06-18 Maytag Co Bulkhead seal for clothes dryer
DE3132737A1 (de) * 1981-08-19 1983-03-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Dichtungsanordnung fuer einen waeschetrockner nach dem trommelprinzip
GB2109520A (en) * 1981-10-09 1983-06-02 Tokyo Shibaura Electric Co Drying apparatus
US4430809A (en) * 1981-11-24 1984-02-14 Whirlpool Corporation Front drum access and support for dryer
US5127169A (en) 1991-01-25 1992-07-07 Maytag Corporation Clothes dryer
US20050108893A1 (en) 2003-11-26 2005-05-26 Hwang Sung G. Dryer
WO2010077053A2 (en) 2008-12-30 2010-07-08 Lg Electronics Inc. Laundry machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3027653A (en) * 1958-05-14 1962-04-03 Gen Motors Corp Domestic appliance
US3570138A (en) * 1968-11-12 1971-03-16 Blackstone Corp Clothes dryers
US3816942A (en) * 1972-07-24 1974-06-18 Maytag Co Bulkhead seal for clothes dryer
DE3132737A1 (de) * 1981-08-19 1983-03-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Dichtungsanordnung fuer einen waeschetrockner nach dem trommelprinzip
GB2109520A (en) * 1981-10-09 1983-06-02 Tokyo Shibaura Electric Co Drying apparatus
US4430809A (en) * 1981-11-24 1984-02-14 Whirlpool Corporation Front drum access and support for dryer
US5127169A (en) 1991-01-25 1992-07-07 Maytag Corporation Clothes dryer
US20050108893A1 (en) 2003-11-26 2005-05-26 Hwang Sung G. Dryer
WO2010077053A2 (en) 2008-12-30 2010-07-08 Lg Electronics Inc. Laundry machine

Cited By (1)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
WO2013127747A1 (en) 2013-09-06
EP2631355B1 (de) 2016-09-07

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