US3691649A - Drum-type washing machine with a drying device - Google Patents

Drum-type washing machine with a drying device Download PDF

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Publication number
US3691649A
US3691649A US13355A US3691649DA US3691649A US 3691649 A US3691649 A US 3691649A US 13355 A US13355 A US 13355A US 3691649D A US3691649D A US 3691649DA US 3691649 A US3691649 A US 3691649A
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US
United States
Prior art keywords
blower
drum
drying device
drying
casing
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.)
Expired - Lifetime
Application number
US13355A
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English (en)
Inventor
Ernst Pigors
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.)
HEINRCH SCHAUMANN AND CO GmbH
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HEINRCH SCHAUMANN AND CO GmbH
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Filing date
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    • 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
    • D06F25/00—Washing 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 
    • 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
    • D06F58/18—Detachable or door-mounted drying arrangements for washing machines

Definitions

  • ABSTRACT A portable self-contained drying apparatus for detachab1e securement to the front of a drum-type washing machine for hot air drying washables.
  • the apparatus utilizes a centrifugal blower in conjunction with electrically resistive heating elements in order to effectuate the desired air fluid movement and heat rise of the air.
  • a closure valve that permits complete isolation between the washing fluid and dryer duct work.
  • the equipment of a washing machine with a drying device is expensive, involving a-substantial increase in the costs of production of the washing machine. For this reason, a washing machine is not usually equipped with a dryer for use after the washing operation is complete. If the purchaser decides to convert the washing machine so as to include a drying device after he purchases it, the modification is expensive.
  • Drying devices of the type disposed on the front of washing machines are already known.
  • the design and arrangement of the washing machine parts, which project outwardly in a forward direction are complicated and require much space.
  • washing suds will be prevented from entering into the parts of the drying apparatus, particularly the heating apparatus.
  • the drying air is also not directed so that it acts upon all the wash being dried, so that the washing operation is unduly prolonged.
  • An object of the present invention is to provide a a drying device for a washing machine which can be e'asily produced and incorporated into an already existing washing machine.
  • the present invention provides a portable drying device for a drum-type washing machine in which the drying device is disposed on an annular flange set in the loading opening of the washing machine, and extends partially into the interior of the drum of the washing machine.
  • An electrically driven centrifugal fan is mounted in the housing which has ascending and then descending sets of tubes bent towards the interior of the drum with an air exit tube for heated air, the heated air current being directed onto one part of the interior of the drum in one of the tubes.
  • the wash being dried in the washing machine drum is moved downwardly and upwardly while the drum is rotating.
  • a thermostat may be disposed in the tube extending upwardly from the blower so as to form part of the guiding channel or tube system for automatically switching off the air conveying unit-drive motor with theheating device.
  • FIG. 1 shows a side view of an embodiment of the drying device for a drum type washing machine disposed at one end of the drum and on the front side of the washing machine;
  • FIG. 2 shows a side view of the drying device heating means and a closure throttle flap in the guide pipe system
  • FIG. 3 shows the drying device from the rear, with the interior wall of the dryer housing removed.
  • FIG. 4 shows, in a view corresponding to FIG. 3, a side view of a further embodiment of the drying device with a modified heating means
  • FIG. 5 shows a perspective view of the drying device with the inner parts of the casing wall removed for showing the interior of the drying device.
  • a drumtype washing machine 1 having a loading opening 2 in which common casing 3 for all the parts of the drying device is disposed.
  • a central outer annular attachment flange 7 secures the drying device in the opening, and has two plate-like portions 4 and 6 projecting outwardly therefrom into the inner drum space 5 of washing machine 1.
  • Outwardly extending platelike part 4 of casing 3 contains the main parts of the drying device, including a blower shroud 8, having a blower impeller 9 mounted on shaft 10, and a blower air pipe system which includes a blower pipe part or elbow union l2, and an adjacent ascending air pipe part 13 (shown in FIGS.
  • Plate-like casing part 6 extends into the interior of the drum space 5 and is joined to descending pipe part 15 by elbow pipe part 16 (shown in FIG. 5). Plate-like casing part 6 also contains drive motor 11 for blower 8, and the remaining portion of shaft 10 on which impeller 9 of blower 8 is mounted.
  • a closure flap 17a is disposed to prevent the entrance of washing suds into the heating air pipe system (13-17) during the washing operation.
  • the closure flap may be actuated in a known manner by a pair of bevel gear wheels connected to the rotary shaft of the closure flaps 17a and a spindle having a turning knob extending outside of casing 3.
  • Closure flap 17a may be actuated manually by means of a rack disposed outside the injection pipe and casing 3, a pinion engaging the rack, and a spindle having a turning knob.
  • Air injection pipe part 17 is closed completely by the closure flap during the washing operation, and is opened in the subsequent drying operation.
  • a heating means 18, which is an electrical resistance, is disposed in ascending pipe part 13.
  • a thermostat 19 is disposed in descending pipe part 15 and automatically switches off the heating means, while the blower continues to rotate to cool the wash dried by the stream of hot air.
  • an adjustable time switch 20 is disposed on the front side of the drying device casing part 4.
  • a pre-selector switch 21 for setting the washing procedure or after removal of the washing suds the drying procedure.
  • check lamp 22 may be provided for indicating the switching on of the washing machine and the drying device.
  • a light source and a mirror which show the image of the interior of the drum space 5 through a viewing hole 23 of the casing part 4.
  • the guide pipe system, pipe parts 13-17, is constructed so that washing suds are prevented from entering drum space 5, and touching the heating means, during the washing operation. Closure flap 17a prevents the flow of suds into the drying device.
  • the tube system 13 to 17 is so arranged and constructed that the warm injection pipe part 17 is directed to the sides of drum space 5 in which the wash is tumbled upwardly and downwardly.
  • the air pipe parts l2, l3, 14, 15, 16, and 17 are connected to each other by flanges.
  • the descending pipe part 15 is attached to the front wall of the dryer casing part 4, on which the drive motor 11 and the blower 8, 9 are attached by means of pivoting elements.
  • the hot air stream produced by the blower and heated in the ascending pipe part 13 is directed by the air pipe system and the air injection pipe part 17 onto the wash which falls down loosely, after the suds have been discharged from the interior of the drum space 5.
  • Through the inspection opening 23 the interior of the drum space illuminated by the light source 22 may be inspected via the reflecting mirror 23a.
  • the hot air stream is directed alternately on the wash as it falls downwardly as the drum rotates in one direction, and as the wash is thrown upwardly during opposite rotation of the washing drum.
  • the hot drying air stream is directed onto the wash as it moves upwardly and downwardly in the washing drum, unlike known washing drying devices whose drying air stream is only directed on the pieces of wash lying on the bottom of the drum.
  • the heating resistance 18a is surrounded by heatproof insulating material enclosed in a tubular casing of stainless steel which surrounds the impellor 9 of the blower 8 as free coils whose ends are connected with current terminals.
  • heating resistances 18c disposed on supports 18b which increase in diameter in the direction of flow of the blower air to be heated, which cause a turbulent air flow.
  • heating means includes an electrically insulated and armed resistance wire disposed in radial space in around the circumferance of the fan wheel of said blower.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
US13355A 1969-09-19 1970-02-24 Drum-type washing machine with a drying device Expired - Lifetime US3691649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691947627 DE1947627A1 (de) 1969-09-19 1969-09-19 Trommelwaschmaschine mit Waeschetrocknungsvorrichtung

Publications (1)

Publication Number Publication Date
US3691649A true US3691649A (en) 1972-09-19

Family

ID=5746033

Family Applications (1)

Application Number Title Priority Date Filing Date
US13355A Expired - Lifetime US3691649A (en) 1969-09-19 1970-02-24 Drum-type washing machine with a drying device

Country Status (9)

Country Link
US (1) US3691649A (fr)
JP (1) JPS4812593B1 (fr)
AT (1) AT296200B (fr)
BE (1) BE747081A (fr)
CH (1) CH504572A (fr)
DE (1) DE1947627A1 (fr)
ES (1) ES376876A1 (fr)
FR (1) FR2060482A5 (fr)
NL (1) NL7002153A (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040139555A1 (en) * 1997-04-29 2004-07-22 Conrad Daniel C. Non-aqueous washing machine & methods
US20050047763A1 (en) * 2003-06-12 2005-03-03 Bsh Bosch Und Siemens Hausgerate Gmbh Heater for a washer-dryer
US20080083432A1 (en) * 2003-10-31 2008-04-10 Whirpool Corporation Multifunctioning method utilizing a two phase non-aqueous extraction process
US7513132B2 (en) 2003-10-31 2009-04-07 Whirlpool Corporation Non-aqueous washing machine with modular construction
US7534304B2 (en) 1997-04-29 2009-05-19 Whirlpool Corporation Non-aqueous washing machine and methods
US20090172891A1 (en) * 2004-04-13 2009-07-09 Whirlpool Corporation Method and apparatus for cleaning objects in an automatic cleaning appliance using an oxidizing agent
US20090178442A1 (en) * 2005-11-18 2009-07-16 Shinichiro Kawabata Washing and drying machine
US20090211309A1 (en) * 2005-02-22 2009-08-27 Kabushiki Kaisha Toshiba Drum type washing-drying machine
US20100024239A1 (en) * 2005-11-25 2010-02-04 Kabushki Kaisha Toshiba Corp. Drum-type washer/dryer
US7695524B2 (en) 2003-10-31 2010-04-13 Whirlpool Corporation Non-aqueous washing machine and methods
US7739891B2 (en) 2003-10-31 2010-06-22 Whirlpool Corporation Fabric laundering apparatus adapted for using a select rinse fluid
US7837741B2 (en) 2004-04-29 2010-11-23 Whirlpool Corporation Dry cleaning method
US7966684B2 (en) 2005-05-23 2011-06-28 Whirlpool Corporation Methods and apparatus to accelerate the drying of aqueous working fluids
US8262741B2 (en) 1997-04-29 2012-09-11 Whirlpool Corporation Non-aqueous washing apparatus and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2210690A1 (en) * 1972-12-18 1974-07-12 Crolls Sa Front loading washing machine for household linen - washing, spinning and hot air drying in a simple and efficient machine cheap to produce
IT229026Y1 (it) * 1992-02-12 1998-06-24 Zanussi Elettrodomestici Lavabiancheria perfezionata con kit per l'asciugatura
JP3920314B2 (ja) * 2006-09-01 2007-05-30 松下電器産業株式会社 ドラム式洗濯乾燥機

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1286159A (en) * 1917-06-16 1918-11-26 William H Voss Illuminating arrangement for washing-machines.
US2608003A (en) * 1952-02-11 1952-08-26 Tucker & Ross Dev Co Washing machine drier attachment
US2629810A (en) * 1950-07-28 1953-02-24 Harry G Ditlow Portable clothes drier
US2827783A (en) * 1949-01-06 1958-03-25 Harold E Handley Drying apparatus and drying attachment for clothes washing machine and the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1286159A (en) * 1917-06-16 1918-11-26 William H Voss Illuminating arrangement for washing-machines.
US2827783A (en) * 1949-01-06 1958-03-25 Harold E Handley Drying apparatus and drying attachment for clothes washing machine and the like
US2629810A (en) * 1950-07-28 1953-02-24 Harry G Ditlow Portable clothes drier
US2608003A (en) * 1952-02-11 1952-08-26 Tucker & Ross Dev Co Washing machine drier attachment

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7534304B2 (en) 1997-04-29 2009-05-19 Whirlpool Corporation Non-aqueous washing machine and methods
US8262741B2 (en) 1997-04-29 2012-09-11 Whirlpool Corporation Non-aqueous washing apparatus and method
US20040139555A1 (en) * 1997-04-29 2004-07-22 Conrad Daniel C. Non-aqueous washing machine & methods
US20050047763A1 (en) * 2003-06-12 2005-03-03 Bsh Bosch Und Siemens Hausgerate Gmbh Heater for a washer-dryer
US7149416B2 (en) * 2003-06-12 2006-12-12 Bsh Bosch And Siemens Hausgeraete Gmbh Clothes dryer heater with air flow increasing device adjacent the heating element
US7739891B2 (en) 2003-10-31 2010-06-22 Whirlpool Corporation Fabric laundering apparatus adapted for using a select rinse fluid
US7513132B2 (en) 2003-10-31 2009-04-07 Whirlpool Corporation Non-aqueous washing machine with modular construction
US20080083432A1 (en) * 2003-10-31 2008-04-10 Whirpool Corporation Multifunctioning method utilizing a two phase non-aqueous extraction process
US7695524B2 (en) 2003-10-31 2010-04-13 Whirlpool Corporation Non-aqueous washing machine and methods
US7651532B2 (en) 2003-10-31 2010-01-26 Whirlpool Corporation Multifunctioning method utilizing multiple phases non-aqueous extraction process
US20090172891A1 (en) * 2004-04-13 2009-07-09 Whirlpool Corporation Method and apparatus for cleaning objects in an automatic cleaning appliance using an oxidizing agent
US7837741B2 (en) 2004-04-29 2010-11-23 Whirlpool Corporation Dry cleaning method
US20090211309A1 (en) * 2005-02-22 2009-08-27 Kabushiki Kaisha Toshiba Drum type washing-drying machine
US8490437B2 (en) 2005-02-22 2013-07-23 Kabushiki Kaisha Toshiba Drum type washing-drying machine
US7966684B2 (en) 2005-05-23 2011-06-28 Whirlpool Corporation Methods and apparatus to accelerate the drying of aqueous working fluids
US20090178442A1 (en) * 2005-11-18 2009-07-16 Shinichiro Kawabata Washing and drying machine
US8881556B2 (en) 2005-11-18 2014-11-11 Kabushiki Kaisha Toshiba Washing and drying machine
US20100024239A1 (en) * 2005-11-25 2010-02-04 Kabushki Kaisha Toshiba Corp. Drum-type washer/dryer
US8112904B2 (en) 2005-11-25 2012-02-14 Kabushiki Kaisha Toshiba Drum-type washer/dryer

Also Published As

Publication number Publication date
BE747081A (fr) 1970-08-17
JPS4812593B1 (fr) 1973-04-21
NL7002153A (fr) 1971-03-23
CH504572A (de) 1971-03-15
AT296200B (de) 1972-02-10
FR2060482A5 (fr) 1971-06-18
ES376876A1 (es) 1972-11-01
DE1947627A1 (de) 1971-04-22

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