EP0344452A1 - Vorrichtung zur Kühlung, insbesondere für die Trommellager eines Wäschetrockners - Google Patents

Vorrichtung zur Kühlung, insbesondere für die Trommellager eines Wäschetrockners Download PDF

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Publication number
EP0344452A1
EP0344452A1 EP89107294A EP89107294A EP0344452A1 EP 0344452 A1 EP0344452 A1 EP 0344452A1 EP 89107294 A EP89107294 A EP 89107294A EP 89107294 A EP89107294 A EP 89107294A EP 0344452 A1 EP0344452 A1 EP 0344452A1
Authority
EP
European Patent Office
Prior art keywords
drum
bearings
cooling device
bearing
air
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.)
Withdrawn
Application number
EP89107294A
Other languages
English (en)
French (fr)
Inventor
Antonio Dr. Merloni
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.)
A MERLONI SpA
Antonio Merloni SpA
Original Assignee
A MERLONI SpA
Antonio Merloni SpA
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 A MERLONI SpA, Antonio Merloni SpA filed Critical A MERLONI SpA
Publication of EP0344452A1 publication Critical patent/EP0344452A1/de
Withdrawn legal-status Critical Current

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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 present invention relates to a cooling device, particularly for the drum bearings of laundry driers.
  • Known domestic laundry driers are usually constituted by a frame or cabinet supporting a revolving drum containing laundry to be dried by means of an air circulation system.
  • a processor besides controlling the various operating parameters, periodically reverses the drum rotation in order to prevent the laundry from getting entangled.
  • the revolving drum is supported in the frame by means of bearings of different types, rolling or plain bearings, such as for example plastic sleeve bearings.
  • the aim of the present invention is to provide a cooling device adapted to lower the working temperature of the drum bearings of domestic laundry driers.
  • an object of the invention is to provide a cooling device easily adaptable to known laundry driers without substantially modifying the supporting systems of the drum.
  • a further object of the invention is to provide a relatively simple device such as not to affect the machine production costs considerably.
  • a cooling device particularly for the drum bearings of laundry driers, comprising a frame supporting said drum by means of bearings, characterized in that at least one air passage is provided at each of said bearings for air coming from the outside, said air being adapted to cool said bearings.
  • a laundry drier 1 essentially constituted by a frame 2 supporting a revolving drum 3 adapted to contain the laundry to be dried.
  • a drum supporting bearing 4 which, for example, can be a rolling ball bearing, as illustrated in figure 4, or a plain bearing with a plastic sleeve ( figures 2 and 3 ) or with a brass ( figure 5 ).
  • Figure 2 shows a plain bearing 4a comprising a plastic sleeve 5 housed in the support 6 and containing a pivot 7 fixed to the drum 3.
  • the support 6 is fixed to the frame 2 of the machine, in a per se known manner not illustrated here, and it is spaced from the wall 2a of the frame 2 to provide an air passage around the bearing 4a, by means of air intakes 8 provided on the wall 2a at pivot 7.
  • Fig. 3 shows a plain bearing 4b comprising a support 6 housing a sleeve 5 made of plastics, substantially similarly to the preceeding one.
  • pivot 7a fixed to the drum 3 is hollow since it is provided with a hole 9 for a passage of air which cools the bearing from inside.
  • Fig. 4 illustrates a rolling bearing 4c comprising a support 10, fixed to the wall 2a of the frame 2, and balls 11 interposed between the support and pivot 12 fixed to the drum.
  • Pivot 12 is provided with an axial hole 13 for a passage of cooling air, in a way similar to the preceeding one.
  • Fig. 5 shows a plain bearing 4d comprising a brass 14, housed in a support 15 fixed to the wall 2a of the structure of the machine, and a pivot 16 fixed to the drum 3.
  • Pivot 16 is provided with an axial hole 17 for a passage of air and the support 15 too is provided with slots 18 at its connection with the wall 2a.
  • the air circulation needed for cooling is given by the air pressure inside the drum being lower than the air pressure outside the machine; for this reason, during the drying operation, fresh air keeps getting into the drum, through the provided intakes, hitting the exterior of the support, crossing the pivot hole and thus considerably cooling the entire rotating assembly.
  • the cooling device according to the invention achieves the intended aims and objects by allowing the support bearings of the drum of laundry driers to work in the best temperature conditions with a great advantage in terms of longevity and reliability of these parts.
  • the cooling device according to the invention may have numerous modifications and variations, all within the inventive concept; furthermore, all the details may be substituted with technically equivalent elements.
  • the materials employed, as well as the dimensions, may be any according to the specific needs and the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP89107294A 1988-06-01 1989-04-22 Vorrichtung zur Kühlung, insbesondere für die Trommellager eines Wäschetrockners Withdrawn EP0344452A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2082188 1988-06-01
IT20821/88A IT1217754B (it) 1988-06-01 1988-06-01 Dispositivo di raffreddamento, particolarmente per i suppoorti del tamburo rotante di una macchina asciugatrice per biancheria

Publications (1)

Publication Number Publication Date
EP0344452A1 true EP0344452A1 (de) 1989-12-06

Family

ID=11172555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89107294A Withdrawn EP0344452A1 (de) 1988-06-01 1989-04-22 Vorrichtung zur Kühlung, insbesondere für die Trommellager eines Wäschetrockners

Country Status (2)

Country Link
EP (1) EP0344452A1 (de)
IT (1) IT1217754B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628654A1 (de) * 1993-06-07 1994-12-14 Bosch-Siemens HausgerÀ¤te GmbH Wäschetrockner mit horizontal drehbar gelagerter Wäschetrommel
DE10360898A1 (de) * 2003-12-23 2005-07-21 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrockner
EP1507036A3 (de) * 2003-08-12 2006-03-22 Lg Electronics Inc. Scharniervorrichtung für eine Wäschetrocknertrommel
WO2006052081A1 (en) * 2004-11-10 2006-05-18 Lg Electronics Inc. Dryer
EP2796612A2 (de) 2013-04-24 2014-10-29 Miele & Cie. KG Lagerung für die Trommel eines Wäschetrockners mit einer horizontal oder schräg drehbar gelagerten Trommelachse sowie Wäschebehandlungsmaschine insbesondere Wäschetrockner
CN111151437A (zh) * 2020-01-09 2020-05-15 江西达人建材有限公司 一种陶粒多级筛分装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827276A (en) * 1953-03-05 1958-03-18 Rheem Mfg Co Laundry dryer
US3060593A (en) * 1959-08-07 1962-10-30 Gen Motors Corp Clothes drier
LU55645A1 (de) * 1967-03-08 1968-05-26
US3457656A (en) * 1967-11-09 1969-07-29 Westinghouse Electric Corp Laundry apparatus
GB1500032A (en) * 1975-12-16 1978-02-08 Burco Dean Ltd Tumble dryers
JPS6095216A (ja) * 1983-10-27 1985-05-28 Mitsubishi Heavy Ind Ltd 軸受断熱方法
JPS60228362A (ja) * 1984-04-23 1985-11-13 Asahi Chem Ind Co Ltd 糸条巻取装置
DE8510620U1 (de) * 1985-04-11 1986-05-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Wäschepflegegerät, insbesondere Wäschetrockner oder Waschmaschine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827276A (en) * 1953-03-05 1958-03-18 Rheem Mfg Co Laundry dryer
US3060593A (en) * 1959-08-07 1962-10-30 Gen Motors Corp Clothes drier
LU55645A1 (de) * 1967-03-08 1968-05-26
US3457656A (en) * 1967-11-09 1969-07-29 Westinghouse Electric Corp Laundry apparatus
GB1500032A (en) * 1975-12-16 1978-02-08 Burco Dean Ltd Tumble dryers
JPS6095216A (ja) * 1983-10-27 1985-05-28 Mitsubishi Heavy Ind Ltd 軸受断熱方法
JPS60228362A (ja) * 1984-04-23 1985-11-13 Asahi Chem Ind Co Ltd 糸条巻取装置
DE8510620U1 (de) * 1985-04-11 1986-05-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Wäschepflegegerät, insbesondere Wäschetrockner oder Waschmaschine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 242 (M-417)() 28 September 1985, & JP-A-60 095216 (MITSUBISHI JUKOGYO) 28 May 1985, *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 092 (M-468)() 09 April 1986, & JP-A-60 228362 (ASAHI KASEI KOGYO) 13 November 1985, *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0628654A1 (de) * 1993-06-07 1994-12-14 Bosch-Siemens HausgerÀ¤te GmbH Wäschetrockner mit horizontal drehbar gelagerter Wäschetrommel
EP1507036A3 (de) * 2003-08-12 2006-03-22 Lg Electronics Inc. Scharniervorrichtung für eine Wäschetrocknertrommel
DE10360898A1 (de) * 2003-12-23 2005-07-21 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrockner
US7644514B2 (en) 2003-12-23 2010-01-12 Bsh Bosch Und Siemens Hausgeraete Gmbh Clothes dryer
WO2006052081A1 (en) * 2004-11-10 2006-05-18 Lg Electronics Inc. Dryer
US8272145B2 (en) 2004-11-10 2012-09-25 Lg Electronics Inc. Dryer
EP2796612A2 (de) 2013-04-24 2014-10-29 Miele & Cie. KG Lagerung für die Trommel eines Wäschetrockners mit einer horizontal oder schräg drehbar gelagerten Trommelachse sowie Wäschebehandlungsmaschine insbesondere Wäschetrockner
DE102013104122A1 (de) * 2013-04-24 2014-10-30 Miele & Cie. Kg Lagerung für die Trommel eines Wäschetrockners mit einer horizontal oder schräg drehbar gelagerten Trommelachse sowie Wäschebehandlungsmaschine insbesondere Wäschetrockner
DE102013104122B4 (de) * 2013-04-24 2016-06-09 Miele & Cie. Kg Lagerung für die Trommel eines Wäschetrockners mit einer horizontal oder schräg drehbar gelagerten Trommelachse sowie Wäschebehandlungsmaschine insbesondere Wäschetrockner
CN111151437A (zh) * 2020-01-09 2020-05-15 江西达人建材有限公司 一种陶粒多级筛分装置

Also Published As

Publication number Publication date
IT1217754B (it) 1990-03-30
IT8820821A0 (it) 1988-06-01

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