EP0073898A1 - Combined machine for washing and drying laundry - Google Patents

Combined machine for washing and drying laundry Download PDF

Info

Publication number
EP0073898A1
EP0073898A1 EP82106133A EP82106133A EP0073898A1 EP 0073898 A1 EP0073898 A1 EP 0073898A1 EP 82106133 A EP82106133 A EP 82106133A EP 82106133 A EP82106133 A EP 82106133A EP 0073898 A1 EP0073898 A1 EP 0073898A1
Authority
EP
European Patent Office
Prior art keywords
tub
fan
heater elements
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
Application number
EP82106133A
Other languages
German (de)
French (fr)
Other versions
EP0073898B1 (en
Inventor
Piero Durazzani
Luciano Lorenzetti
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.)
OFFERTA DI LICENZA AL PUBBLICO
Original Assignee
Industrie Zanussi 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 Industrie Zanussi SpA filed Critical Industrie Zanussi SpA
Priority to AT82106133T priority Critical patent/ATE12409T1/en
Publication of EP0073898A1 publication Critical patent/EP0073898A1/en
Application granted granted Critical
Publication of EP0073898B1 publication Critical patent/EP0073898B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F25/00Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 

Definitions

  • This invention relates to a combined machine for washing laundry and subsequently drying it by continuously circulating heated air therethrough.
  • Machines of this type are conventionally provided with a washing assembly and in addition with at least one fan and associated heater elements for generating a stream of hot air flowing within the drum of the washing assembly and the laundry contained therein.
  • the washing assembly itself is provided with at least one dampening mass for its equilibration during rotation of the drum, particularly during the centrifuging phases. ularly during the centrifuging phases.
  • the assembly formed by the fan and the heater elements is enclosed in a separate housing mounted within the frame of the machine and provided with suitable heat-insulation for ensuring efficient heating of the air employed for drying.
  • a combined washing and drying machine comprising a tub, a drum mounted for rotation within said tub and adapted to contain the laundry to be washed and dried, a dampening mass for equlibrating the oscillating system formed of said tub and drum, a fan, and heater elements for gen rating a flow of heated air and for circulating the heated air through said laundry.
  • a machine of the above specified type is characterized in that said dampening mass consists of a plate of a material having a high specific weight and designed to form a seat for mounting said fan, provided with a first opening for receiving a first duct communicating with said tub, and a heat-insulated chamber for containing said heater elements, said chamber communicating with the outlet of said fan on the one side, and with a second duct connected to said tub on the other.
  • a combined washing and drying machine shown in fig. 1 generally comprises a frame 3, a wash tub 4 resiliently mounted within said frame in a per se known manner, a drum 5 adapted to contain the laundry disposed within the tub and adapted to be rotated by a (not shown) motor, and conventional functional components (not shown) for controlling the operation cycles of the machine.
  • the machine shown in the drawings is in addition provided with a dampening mass in the form of a plate 6 formed of a material having a high specific weight, preferably cast iron, and mounted fixedly on said tub 4 for equilibrating the assembly formed of the tub and the drum.
  • a dampening mass in the form of a plate 6 formed of a material having a high specific weight, preferably cast iron, and mounted fixedly on said tub 4 for equilibrating the assembly formed of the tub and the drum.
  • plate 6 is designed to carry at least one fan 7 and associated electric heater elements 8 for generating a flow of heated air to be supplied. to drum 5 via a conduit 9 connected to plate 6 for drying the laundry contained in drum 5.
  • plate 6 is formed with a bottom wall 10 surrounded by a peripheral wall 11.
  • Bottom wall 10 itself includes two planar portions 12 and 13 connected to one another in parallel relationship and formed each with a through-opening 14 and 15, respectively.
  • Fan 7 is mounted in a per se known manner on planar portion 12, so that its inlet 16 is aligned with opening 14, while its outlet 17 is directed towards planar portion 13.
  • a panel 18 Disposed on planar portion 13 is a panel 18 formed of a thermally insulating material so as to cover the entire surface of planar portion 13 as well as the interior surface of the peripherall wall portion 11 surrounding it. Panel 18 is further formed with a through-opening 19 aligned with opening 15.
  • Heater elements 8 are disposed above planar portion 13 with their terminals 20 and 21 extending through peripheral wall 11 for connection to electric leads (not shown). Heater elements 8 are retained in position by suitable spacers 22 and 23 disposed between heater elements 8 and panel 18 on the one hand and a further panel 24 formed of a heat-insulating material and removably attached to plate 6, so that heater elements 8 are retained at a suitable distance from both panels 18 and 24.
  • an interior chamber 25 containg heater elements 8 and communicating on one side with the outlet 17 of fan 7, and on the other, with duct 9 via the aligned through-openings 15 and 19.
  • the provision of the heat-insulating panels permits efficient heating of the air flow generated by the fan and prevents the generated heat to be transmitted to other functional components of the machine located adjacent plate 6.
  • the heater elements 8 are enclosed in a protective sheath 26 of stainless steel or another suitable material, to prevent incandescent scales possibly set free by the heater elements from being carried into the drum and from damaging the laundry therein.
  • the plate forming the dampening mass thus provides seats for the fan and for the heater elements, eliminating the necessity of the formerly employed separate housing for this purpose.
  • the construction of the washing and drying machine is accordingly simplified, so that the mounting of the remaining functional components of the machine can be carried out in a simple and economical manner.
  • the fan and the heater elements are readily accessible in case of damage or malfunction and for normal maintenance work. It is of course possible to mount the fan and heater elements on the dampening plate, or the dampening plate itself with respect to the tub, in a different manner without leaving the scope of the present invention.

Abstract

A combined washing and drying machine comprises a tub (4), a drum (5) mounted for rotation within the tub (4) and adapted to contain the laundry to be washed and dried, a dampening mass (6) for the dynamic equilibration of the oscillating system formed by said tub (4) and drum (5), a fan (7), and heater elements (8) for generating a flow of heated air and circulating the heated air through said laundry. According to the invention, the dampening mass (6) comprises a plate of a material having a high specific weight and is designed to form a seat for mounting the fan (7), provided with a first opening (14) for receiving a first duct (16) communicating with the tub (4), and a heat-insulated chamber (25) for containing the heater elements (8), said chamber communicating with the outlet of the fan on one side, and with a second duct (9) connected to the tub (4) on the other.

Description

  • This invention relates to a combined machine for washing laundry and subsequently drying it by continuously circulating heated air therethrough.
  • Machines of this type are conventionally provided with a washing assembly and in addition with at least one fan and associated heater elements for generating a stream of hot air flowing within the drum of the washing assembly and the laundry contained therein. The washing assembly itself is provided with at least one dampening mass for its equilibration during rotation of the drum, particularly during the centrifuging phases. ularly during the centrifuging phases.
  • For ensuring the stability of a machine of this type in any of its operating conditions it is thus necessary to suitably dimension and mount the assembly formed of said fan and said heater elements as well as said at least one dampening mass within the frame of the machine.
  • Conventionally, the assembly formed by the fan and the heater elements is enclosed in a separate housing mounted within the frame of the machine and provided with suitable heat-insulation for ensuring efficient heating of the air employed for drying.
  • Due to the relatively great dimensions of the assembly formed by the fan, the heater elements and the associated ducting, its accommodation within the frame of the machine in addition to the at least one dampening mass and the remaining functional components presents considerable difficulties and results in a complicated overall construction of the machine.
  • It is therefore an object of the present invention to avoid the above-noted difficulties and to provide a combined washing and drying machine comprising a reduced number of functional components the mounting of which within the frame of the machine can be carried out in a simple and effective manner.
  • This and other objects are attained according to the invention by a combined washing and drying machine, comprising a tub, a drum mounted for rotation within said tub and adapted to contain the laundry to be washed and dried, a dampening mass for equlibrating the oscillating system formed of said tub and drum, a fan, and heater elements for gen rating a flow of heated air and for circulating the heated air through said laundry.
  • A machine of the above specified type is characterized in that said dampening mass consists of a plate of a material having a high specific weight and designed to form a seat for mounting said fan, provided with a first opening for receiving a first duct communicating with said tub, and a heat-insulated chamber for containing said heater elements, said chamber communicating with the outlet of said fan on the one side, and with a second duct connected to said tub on the other.
  • The characteristics of the invention will become evident from the following description of an exemplary and nonlimiting embodiment with reference to the accompanying drawings, wherein:
    • fig. 1 shows a diagrammatic front view of a combined washing and drying machine incorporating a dampening mass and associated components in a preferred embodiment of the invention, and
    • fig. 2 shows a longitudinal sectional view of the dampening mass and associated components of the machine of fig. 1.
  • A combined washing and drying machine shown in fig. 1 generally comprises a frame 3, a wash tub 4 resiliently mounted within said frame in a per se known manner, a drum 5 adapted to contain the laundry disposed within the tub and adapted to be rotated by a (not shown) motor, and conventional functional components (not shown) for controlling the operation cycles of the machine.
  • The machine shown in the drawings is in addition provided with a dampening mass in the form of a plate 6 formed of a material having a high specific weight, preferably cast iron, and mounted fixedly on said tub 4 for equilibrating the assembly formed of the tub and the drum.
  • According to the invention, plate 6 is designed to carry at least one fan 7 and associated electric heater elements 8 for generating a flow of heated air to be supplied. to drum 5 via a conduit 9 connected to plate 6 for drying the laundry contained in drum 5.
  • As shown in fig. 2, plate 6 is formed with a bottom wall 10 surrounded by a peripheral wall 11. Bottom wall 10 itself includes two planar portions 12 and 13 connected to one another in parallel relationship and formed each with a through-opening 14 and 15, respectively.
  • Fan 7 is mounted in a per se known manner on planar portion 12, so that its inlet 16 is aligned with opening 14, while its outlet 17 is directed towards planar portion 13.
  • Disposed on planar portion 13 is a panel 18 formed of a thermally insulating material so as to cover the entire surface of planar portion 13 as well as the interior surface of the peripherall wall portion 11 surrounding it. Panel 18 is further formed with a through-opening 19 aligned with opening 15.
  • Heater elements 8 are disposed above planar portion 13 with their terminals 20 and 21 extending through peripheral wall 11 for connection to electric leads (not shown). Heater elements 8 are retained in position by suitable spacers 22 and 23 disposed between heater elements 8 and panel 18 on the one hand and a further panel 24 formed of a heat-insulating material and removably attached to plate 6, so that heater elements 8 are retained at a suitable distance from both panels 18 and 24.
  • There is thus formed an interior chamber 25 containg heater elements 8 and communicating on one side with the outlet 17 of fan 7, and on the other, with duct 9 via the aligned through- openings 15 and 19.
  • The provision of the heat-insulating panels permits efficient heating of the air flow generated by the fan and prevents the generated heat to be transmitted to other functional components of the machine located adjacent plate 6.
  • The heater elements 8 are enclosed in a protective sheath 26 of stainless steel or another suitable material, to prevent incandescent scales possibly set free by the heater elements from being carried into the drum and from damaging the laundry therein.
  • The plate forming the dampening mass thus provides seats for the fan and for the heater elements, eliminating the necessity of the formerly employed separate housing for this purpose.
  • The construction of the washing and drying machine is accordingly simplified, so that the mounting of the remaining functional components of the machine can be carried out in a simple and economical manner.
  • In addition, the fan and the heater elements are readily accessible in case of damage or malfunction and for normal maintenance work. It is of course possible to mount the fan and heater elements on the dampening plate, or the dampening plate itself with respect to the tub, in a different manner without leaving the scope of the present invention.

Claims (2)

1. A combined washing and drying machine, comprising a tub, a drum mounted for rotation within said tub and adapted to contain the laundry to be washed and dried, a dampening mass for equilibrating the oscillating system formed of said tub and drum, a fan, and heater elements for generating a flow of heated air and for circulating the hot air through said laundry, characterized in that said dampening mass consists of a plate (6) of a material having a high specific weight and designed to form a seat for mounting said fan (7) provided with a first opening (14) for receiving a first duct (16) communicating with said tub (4), and a heat-insulated chamber (25) for containing said heater elements (8), said chamber communicating with the outlet (17) of said fan on the one side, and with a second duct (15) connected to said tub on the other.
2. A combined washing and drying machine according to claim 1, characterized in that said plate (6) is mounted on top of said tub (4), and in that said chamber (25) containing said heater elements (8) in the form of armoured electric resistors is internally lined with a panel (18) . formed of a heat-insulating material and has its top closed by a removable panel (24) formed of the same material.
EP82106133A 1981-09-03 1982-07-08 Combined machine for washing and drying laundry Expired EP0073898B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82106133T ATE12409T1 (en) 1981-09-03 1982-07-08 COMBINED MACHINE FOR WASHING AND DRYING LAUNDRY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT3403781U 1981-09-03
IT8134037U IT8134037V0 (en) 1981-09-03 1981-09-03 COMBINED MACHINE FOR THE WASHING AND DRYING OF THE LINEN.

Publications (2)

Publication Number Publication Date
EP0073898A1 true EP0073898A1 (en) 1983-03-16
EP0073898B1 EP0073898B1 (en) 1985-03-27

Family

ID=11238906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106133A Expired EP0073898B1 (en) 1981-09-03 1982-07-08 Combined machine for washing and drying laundry

Country Status (4)

Country Link
EP (1) EP0073898B1 (en)
AT (1) ATE12409T1 (en)
DE (1) DE3262785D1 (en)
IT (1) IT8134037V0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1544341A2 (en) 2003-12-18 2005-06-22 Lg Electronics Inc. Washing machine with drying function

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2590295A (en) * 1948-01-23 1952-03-25 Avco Mfg Corp Clothes drier
US2899816A (en) * 1959-08-18 jacobsen
FR1282279A (en) * 1960-08-02 1962-01-19 Slamher Financial & Commercial Quick-drying device for washing machine and machine provided with said device or the like
US3089327A (en) * 1951-09-07 1963-05-14 Murray Corp Apparatus for the complete laundering of fabrics
GB1517708A (en) * 1974-12-18 1978-07-12 Smeg Elettrodomestici Combined washing and drying machine
GB2010926A (en) * 1977-12-05 1979-07-04 Zanussi A Spa Industrie Stainless Steel Tub for Clothes Washing Machine
GB1554725A (en) * 1976-10-11 1979-10-31 Hotpoint Ltd Airflow arrangements for tumble drying machines
GB2044297A (en) * 1979-03-16 1980-10-15 Domar Sa Clothes Washing Machine Incorporating a Drying Device
DE2545795C2 (en) * 1975-07-02 1982-09-30 August Lepper Maschinen- U. Apparatebau Gmbh, 5340 Bad Honnef Drum washing and drying machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899816A (en) * 1959-08-18 jacobsen
US2590295A (en) * 1948-01-23 1952-03-25 Avco Mfg Corp Clothes drier
US3089327A (en) * 1951-09-07 1963-05-14 Murray Corp Apparatus for the complete laundering of fabrics
FR1282279A (en) * 1960-08-02 1962-01-19 Slamher Financial & Commercial Quick-drying device for washing machine and machine provided with said device or the like
GB1517708A (en) * 1974-12-18 1978-07-12 Smeg Elettrodomestici Combined washing and drying machine
DE2545795C2 (en) * 1975-07-02 1982-09-30 August Lepper Maschinen- U. Apparatebau Gmbh, 5340 Bad Honnef Drum washing and drying machine
GB1554725A (en) * 1976-10-11 1979-10-31 Hotpoint Ltd Airflow arrangements for tumble drying machines
GB2010926A (en) * 1977-12-05 1979-07-04 Zanussi A Spa Industrie Stainless Steel Tub for Clothes Washing Machine
GB2044297A (en) * 1979-03-16 1980-10-15 Domar Sa Clothes Washing Machine Incorporating a Drying Device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1544341A2 (en) 2003-12-18 2005-06-22 Lg Electronics Inc. Washing machine with drying function
EP1544341A3 (en) * 2003-12-18 2007-05-16 Lg Electronics Inc. Washing machine with drying function

Also Published As

Publication number Publication date
DE3262785D1 (en) 1985-05-02
EP0073898B1 (en) 1985-03-27
IT8134037V0 (en) 1981-09-03
ATE12409T1 (en) 1985-04-15

Similar Documents

Publication Publication Date Title
US2728481A (en) Clothes drier
US2843945A (en) Domestic appliance
US2752694A (en) Domestic appliance
US3789514A (en) Bulkhead filter assembly
KR20100129140A (en) Laundry machine having a drying function
US3081554A (en) Clothes dryer incorporating lint destroying means
EP2935683B1 (en) Laundry treating appliance
RU2005115278A (en) WASHING MACHINE OF DRUM TYPE (OPTIONS) AND DRYING DEVICE FOR SUCH WASHING MACHINE
EP0073898B1 (en) Combined machine for washing and drying laundry
US3099542A (en) Drying air heat control and moisture removal apparatus
GB2248920A (en) Conduit in washer-dryer
KR20070063997A (en) Drier for drum type washing machine
US2686978A (en) Laundry drier
GB2095806A (en) Tumble drier
JP2000257864A (en) Heating cooking appliance
WO2023116852A1 (en) Dehumidification device and dryer
US11849527B2 (en) Oven appliance with improved convection cooking performance
EP0648884A1 (en) Household apparatus for drying linen
JP7426644B2 (en) Drum type washer/dryer
JP3670680B2 (en) Clothes dryer
EP0320966A1 (en) Air flow heater unit, particularly for tumbler clothes driers
JPH02128797A (en) Clothing dryer
CN210300609U (en) Cook machine and drying device for same
EP1813711A1 (en) Machine for washing and/or drying laundry
JPS5833493Y2 (en) hot air heater

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19830624

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: INDUSTRIE ZANUSSI S.P.A.

ITF It: translation for a ep patent filed

Owner name: INDUSTRIE ZANUSSI S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 12409

Country of ref document: AT

Date of ref document: 19850415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3262785

Country of ref document: DE

Date of ref document: 19850502

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19860609

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19860731

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19870708

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19870709

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19870731

Ref country code: CH

Effective date: 19870731

BERE Be: lapsed

Owner name: INDUSTRIE ZANUSSI S.P.A.

Effective date: 19870731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19880201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

ITPR It: changes in ownership of a european patent

Owner name: OFFERTA DI LICENZA AL PUBBLICO

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890731

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19900611

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900614

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19900629

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910708

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 82106133.0

Effective date: 19880901