EP1152082B1 - Von oben beschickbarer Wäschewaschtrockner mit horizontaler Trommelachse - Google Patents

Von oben beschickbarer Wäschewaschtrockner mit horizontaler Trommelachse Download PDF

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Publication number
EP1152082B1
EP1152082B1 EP01105746A EP01105746A EP1152082B1 EP 1152082 B1 EP1152082 B1 EP 1152082B1 EP 01105746 A EP01105746 A EP 01105746A EP 01105746 A EP01105746 A EP 01105746A EP 1152082 B1 EP1152082 B1 EP 1152082B1
Authority
EP
European Patent Office
Prior art keywords
drying machine
clothes washing
tub
head piece
machine according
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
EP01105746A
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English (en)
French (fr)
Other versions
EP1152082A3 (de
EP1152082A2 (de
Inventor
Fabio Poloni
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 Italy SpA
Original Assignee
Electrolux Home Products Italy 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 Electrolux Home Products Italy SpA filed Critical Electrolux Home Products Italy SpA
Publication of EP1152082A2 publication Critical patent/EP1152082A2/de
Publication of EP1152082A3 publication Critical patent/EP1152082A3/de
Application granted granted Critical
Publication of EP1152082B1 publication Critical patent/EP1152082B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 

Definitions

  • the present invention refers to a household clothes washing and drying machine, generally known as a washer-dryer in the art, in which the clothes are loaded into a substantially horizontal-axis rotating drum from the top thereof.
  • the internal architecture of a washer-dryer is inherently more complex than the one of a simple clothes washing machine.
  • the means that are intended to ensure the inlet, the recirculation and the outlet of the washing liquor to, in and from the oscillating tub enclosing the rotating drum there must in fact be provided, and appropriately arranged, the means that are needed to create a flow of air in a closed-loop circuit during the clothes drying phases.
  • top-loading clothes washing and drying machines are rather unfrequent, owing also to the difficulty that is found, from an industrial engineering and manufacturing point of view, in making such a complex machine with an outer casing that must be ensured rather small dimensions, particularly as far as its width is concerned, and an adequate capacity in terms of amount of clothes loadable therein for treatment. Even the specific patent literature dealing with such machine models appears to be quite scarce.
  • the closest state-of-the-art is in fact represented in this case by the document EP-A-0 427 610, which however refers to a so-called tumble dryer, that is a machine that is adapted to solely dry the clothes.
  • the means provided to create a forced flow of the drying air are accommodated partly in the first one and partly in the second one of the two stationary disks that are fixed to the seats of the bearings of the rotating drum, which is provided on top with a lid for loading the clothes thereinto.
  • the first disk which is relatively flat
  • an electric heating element extending in a uniform manner over the whole surface thereof
  • the second disk which is on the contrary convex, ie. domed towards the interior of the drum, there is accommodated the impeller of a motor-driven fan.
  • the outer casing has a width in the order of 45 cm, which is therefore larger than the width (40 cm) of the most recent top-loading washing machine models.
  • document EP 0 421 442 A discloses a clothes washing and drying machine with the features of the preamble of claim 1.
  • Most of the top face of the casing 1 is occupied by a clothes loading aperture 2, wherein a rectangular lid 3 is hinged on along the rear side adjacent to a control panel 4 carrying the various control and display or indicating devices 5 of the machine.
  • Within the thickness of the lid 3 there are housed some compartments 6 intended for containing the chemical aids to be filled in for use in the washing phases of the operating cycles of the machine.
  • the interior of the casing 1 accommodates an oscillating tub 9 which is essentially constituted by a cylindrical enclosure and two vertical head pieces on the front and the rear side thereof, wherein said tub houses a single perforated drum 7 provided with a double-shutter lid 8 for loading and removing the clothes through the aperture 2.
  • the drum 7, therefore, is of the type rotating about a sensibly horizontal axis, parallel to the width dimension L of the casing 1, as driven by an electric motor mounted below the tub 9.
  • this head piece which is generally indicated at 10, substantially consists of a first portion 11 and a second portion 12, preferably made of metal and separably joined to each other.
  • the first such portion 11 which is flat in substantially the shape of a volute, is provided with a plurality of perforated tabs 13 along the whole periphery thereof, as well as a circular seat 14 that is perforated on the bottom to accommodate the pulley 16 of the impeller 15 of a fan, as this will be described in greater detail further on - see Figure 2.
  • the second such portion 12 (which is preferably made by die-casting) is substantially in the shape of a pan with a disk-shaped bottom, an outer peripheral edge 17 and an inner peripheral edge 18, both of them provided in a raised form, between which the place is provided for arranging the seat 30 for at least one of the bearings (not shown) of the drum 7.
  • the outer edge 17 comprises both a continuous groove 19 to accommodate a sealing material and a first set of bushes 20 for the screws (not shown) used to fix the head piece 10 to the cylindrical enclosure of the tub 9.
  • the inner edge 18, which is higher than the outer edge 17, is provided with a second set of threaded bushes 21 for the engagement of bolts (not shown, either) that get inserted in the perforations in the tabs 13 - see Figure 2.
  • the same second portion 12 of the head piece 10 is provided with a circular aperture 22 having a diameter that is just slightly smaller than the outer diameter of the impeller 15 which is mounted inside the same channel 28 in such a manner as to enable the pulley 16 to be fixed, on the outside of the head piece 10 of course, on to the shaft 15A thereof protruding through the perforation on the bottom of the recessed seat 14.
  • a first aperture 23 having a rectangular shape and a second aperture 29 having a falcate shape At a second end portion of the channel 28 on the inner edge 18 there are provided a first aperture 23 having a rectangular shape and a second aperture 29 having a falcate shape.
  • the rectangular aperture 23 (see Figure 2) is arranged to face the outer edge 17 and accommodates the flange 24 of a sheathed-type resistance heating element 25 for heating up the air intended for drying the clothes, wherein on said flange 24 there are furthermore attached in a conventional manner two temperature adjusting or temperature limiting devices 26 and 27.
  • a surface-type steam condenser 31 is provided integrally in the second portion 12 of the head piece 10.
  • the condenser 31 in view of maximizing the efficiency of the heat-exchange process between the water used as a cooling medium and the moisture removed in its vapour phase from the clothes by the drying air, the condenser 31 has a meandering shape.
  • the water flowing in from the mains through an inlet 33 in the lowest point, is in this way able to follow a relatively long course before mixing up with the condensate liquid starting at a point 32 in a higher position on the edge 18.
  • the water and the condensate liquid are conveyed, through an appropriate outlet (not shown), directly to the bottom of the tub 9.
  • the same second portion 12 of the head piece 10 of the tub 9 comprises an appendix 34 that is roughly radial with respect to the axis of the seat 30 (which at the same time is the axis of rotation of the drum 7).
  • an appendix 34 is particularly strong owing to the provision of structural reinforcing ribs and terminates with a circular aperture 35 adapted to accommodate a pulley 36 associated to the electric motor (not shown in the Figures, but situated below the cylindrical enclosure of the tub 9) that, through a belt (not shown, either), drives the pulley 16 of the impeller 15 of the fan.
  • the perforated drum 7 enclosed in the tub 9 is kept rotating about the horizontal axis thereof by the afore mentioned driving motor.
  • the clothes drying air is circulated in a closed-loop circuit that comprises, in a logic sequence, the sheathed heating element 25, the falcate aperture 29, the tub 9 and then the drum 7, where the so heated-up air collects, ie. takes on the moisture removed in its vapour phase from the clothes, the aperture 22 in the portion 12 of the head piece 10, the impeller 15 and, finally, the channel 28, following the direction shown by the arrows in Figure 3, until the flow of said drying air eventually reaches again the sheathed heating element 25.
  • the moisture that is removed in its vapour phase from the clothes by the action of the drying air is reduced, ie. condensed and the mixture of condensate liquid and cooling water, which then so forms, falls directly onto the bottom of the tub 9, below the drum 7.
  • a pump (not shown)
  • such a mixture is duly let out of the washer-dryer, but can as well be stored in an appropriately provided reservoir (not shown, either) in view of a utilization thereof in a subsequent washing cycle performed by the machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
  • Air Bags (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Claims (9)

  1. Wäsohewaschtrockner mit einem schwingenden Bottich (9), welcher im Wesentlichen durch eine zylindrische Umhüllung und durch ein Paar von vertikalen Kopfstücken gebildet wird und eine einzelne, mit Löchern versehene Trommel (7) enthält, die von oben beschickt wird und sich um eine horizontale Achse drehen kann, und welcher unter anderem Mittel (15, 22, 25, 29, 31) umfasst, damit in einem geschlossenen Kreislauf eine Strömung an aufgeheizter Trocknungsluft erzeugt und durch die sich drehende Trommel (7) hindurch geführt wird, dadurch gekennzeichnet, dass eines der genannten Kopfstücke (10) des schwingenden Bottichs (9) im Wesentlichen aus einem ersten Abschnitt (11) und aus einem zweiten Abschnitt (12) besteht, welche auf trennbare Weise mitemander dergestalt verbunden sind, dass sie auf der Außenseite des Auflagers (30), welches für mindestens ein Lager der Trommel (7) vorgesehen ist, einen Kanal (28) bilden, in welchem alle genannten Mittel (15, 22,25,29, 31), die für die Erzeugung der genannten Strömung an erhitzter Tiocknungsluft benötigt werden, untergebracht sind.
  2. Wäschewaschtrockner gemäß Anspruch 1, dadurch gekennzeichnet, dass der im Wesentlichen spiralförmig ausgebildete erste Abschnitt (11) des Kopfstückes (10) mit dem genannten zweiten Abschnitt (12) längs dessen Umfanges verbunden ist.
  3. Waschewaschtrockner gemäß Anspruch 2, dadurch gekennzeichnet, dass der genannte zweite Abschnitt (12) des Kopfstückes (10) mit einem äußeren umfänglichen Rand (17) zwecks Befestigung an der zylindrischen Umhüllung des Bottichs (9) sowie mit einem inneren umfänglichen Rand (18) zwecks Verbindung mit dem Umfang des genannten ersten Abschnittes (11) ausgestattet ist.
  4. Wäschewaschtrockner gemäß irgend einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass auf dem Kopfstück (10) des Bottichs (9), an entsprechender Stelle des unteren Abschnitt des genannten Kanals (28), fest eingebaut ein Dampfkondensator (31) vom Oberflächentyp vorhanden ist, um die Feuchtigkeit zu kondensieren, welche in ihrer Dampfphase durch die erhitzte Trocknungsluft aus den Wäzchestücken entfernt wird, wobei als Kühlmedium aus dem Wassernetz einströmendes Wasser verwendet wird.
  5. Wäschewaschtrockner gemäß Anspruch 4, dadurch gekennzeichnet, dass sich im Kondensator (31) der Kühlwassereinlass (33) an entsprechender Stelle des annähernd niedrigsten Punktes des Kopfstücks (10) angeordnet ist und der Kondensator selbst einen schlängelnden Verlauf nimmt, bevor er den Punkt (32) an einer höher gelegenen Stelle erreicht, an welchem das Kühlwasser sich mit der Kondensatorflüssigkeit vermischt.
  6. Wäschewaschtrockner gemäß Anspruch 4, dadurch gekennzeichnet, dass im Kopfstück (10) für das genannte Gemisch, welches aus dem Kühlwasser und der Kondensatorflüssigkeit gebildet wird, ein Auslass in das Innere des Bottichs (9) vorhanden ist.
  7. Wäschewaschtrockner gemäß irgend einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass an einem Endabschnitt des Kanals (28), welcher zwischen den genannten zwei Abschnitten (11, 12) des Kopfstückes (10) gebildet wird, sowohl das Flügelrad (15) als auch Öffnungen (22) vorhanden sind, welche die Verbindung mit dem Inneren des Bottichs (9) an seinem oberen Abschnitt herstellen, damit die mit Feuchtigkeit beladene Trocknungsluft während der Trocknungsphasen der Wäschestücke abgesaugt wird.
  8. Wäschewaschtrockner gemäß Anspruch 7, dadurch gekennzeichnet, dass am anderen Endabschnitt des Kanals (28), welcher zwischen den genannten zwei Abschnitten (11, 12) des Kopfstückes (10) gebildet wird, sowohl elektrische Heizmittel (25) als auch Öffnungen (29) vorhanden sind, um die durch die Wirkung des Flügelrades (15) in Bewegung versetzte Trocknungsluft in den Bottich (9) einzuleiten.
  9. Wäschewaschtrockner gemäß irgend einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass an der Außenseite des Kanals (28) der genannte zweite Abschnitt (12) des Kopfstückes (10) mit einem im Wesentlichen radialen Ansatz (34) mit einem Behälter (35) ausgestattet ist, um die Riemenscheibe (36) des Elektromotors, welcher die Riemenscheibe (16) des Flügehades (15) antreibt, unterzubringen.
EP01105746A 2000-04-27 2001-03-08 Von oben beschickbarer Wäschewaschtrockner mit horizontaler Trommelachse Expired - Lifetime EP1152082B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000PN000026A ITPN20000026A1 (it) 2000-04-27 2000-04-27 Macchina lavasciuga di biancheria a caricamento dall'alto con cesto rotante ad asse sensibilmente orizzontale
ITPN000026 2000-04-27

Publications (3)

Publication Number Publication Date
EP1152082A2 EP1152082A2 (de) 2001-11-07
EP1152082A3 EP1152082A3 (de) 2003-01-15
EP1152082B1 true EP1152082B1 (de) 2005-11-23

Family

ID=11453135

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01105746A Expired - Lifetime EP1152082B1 (de) 2000-04-27 2001-03-08 Von oben beschickbarer Wäschewaschtrockner mit horizontaler Trommelachse

Country Status (5)

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EP (1) EP1152082B1 (de)
AT (1) ATE310846T1 (de)
DE (1) DE60115137T2 (de)
ES (1) ES2250241T3 (de)
IT (1) ITPN20000026A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050138973A1 (en) 2003-12-18 2005-06-30 Lg Electronics Inc. Washing machine with drying function
CN107401035A (zh) * 2016-05-19 2017-11-28 无锡小天鹅股份有限公司 干衣机的蜗壳和具有其的干衣机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2279878A1 (fr) * 1974-07-23 1976-02-20 Vendome Cie Perfectionnements aux machines a laver et a secher le linge
ES242592Y (es) * 1979-03-22 1979-12-01 Dispositivo de secado para maquina lavadora de ropa.
CA2026844C (en) * 1989-10-05 1999-05-11 Tadashi Nukaga Drum-type washing machine
FR2654444B1 (fr) * 1989-11-10 1992-08-21 Ciapem Seche-linge a ouverture par le dessus.
JPH0475693A (ja) * 1990-07-18 1992-03-10 Brother Ind Ltd 乾燥装置
JPH0647193A (ja) * 1992-08-04 1994-02-22 Sanyo Electric Co Ltd ドラム式洗濯乾燥機

Also Published As

Publication number Publication date
DE60115137D1 (de) 2005-12-29
EP1152082A3 (de) 2003-01-15
ITPN20000026A1 (it) 2001-10-29
ES2250241T3 (es) 2006-04-16
ATE310846T1 (de) 2005-12-15
DE60115137T2 (de) 2006-07-20
EP1152082A2 (de) 2001-11-07

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