EP0066692B1 - Vorrichtung zum Ansaugen und Abführen von Luft für Wäschetrockner - Google Patents

Vorrichtung zum Ansaugen und Abführen von Luft für Wäschetrockner Download PDF

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Publication number
EP0066692B1
EP0066692B1 EP82103096A EP82103096A EP0066692B1 EP 0066692 B1 EP0066692 B1 EP 0066692B1 EP 82103096 A EP82103096 A EP 82103096A EP 82103096 A EP82103096 A EP 82103096A EP 0066692 B1 EP0066692 B1 EP 0066692B1
Authority
EP
European Patent Office
Prior art keywords
dryer
opening
discharge
suction
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.)
Expired
Application number
EP82103096A
Other languages
English (en)
French (fr)
Other versions
EP0066692A3 (en
EP0066692A2 (de
Inventor
Franco Del Frate
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 AT82103096T priority Critical patent/ATE15703T1/de
Publication of EP0066692A2 publication Critical patent/EP0066692A2/de
Publication of EP0066692A3 publication Critical patent/EP0066692A3/en
Application granted granted Critical
Publication of EP0066692B1 publication Critical patent/EP0066692B1/de
Expired 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
    • 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 clothes drier, particularly of domestic type with a rotatable drum and an open air circulating circuit, having an improved air suction and discharge device.
  • Air may be discharged outside from the apparatus into the room wherein the dryer is located, if there are good ventilating conditions, or it is discharged outside the room through a flexible conduit connected to the dryer and passing through a hood or a wall, in order to avoid condensation of moisture inside the room.
  • known dryers for example from the US Patent No. 3.006.422
  • an air suction and discharge device comprising several conduits which need couplings not ensuring good air-tight connections.
  • said couplings are mounted inside the dryer and are accessible only after disassembling of at least one wall of the dryer (i.e. US Patents US-A--2.675.628 and US-A-3.892.048); therefore, servicing is difficult and involves undesirable long and costly operation.
  • a first purpose of the present invention is to provide an air suction and discharge device forming an open circuit and made by a reduced number of components.
  • a further scope of the invention is to provide a device of the kind mentioned above having a structure which prevents water sprinkles from entering the dryer, said device being easy to assemble and disassemble in order to allow a more convenient and quick servicing.
  • the problem is solved by an air suction and discharge device for a domestic tumble dryer, having a rotatable drum, heating means and a fan adapted to be connected in an open air-circulating circuit, said device being characterized by:
  • Fig. 1 diagrammatically shows a partially sectioned side view of a dryer provided with the device in accordance with the invention
  • Fig. 2 diagrammatically shows a rear view of the dryer of Fig. 1
  • Fig. 3 shows the device in accordance with the invention sectioned along line III-III of Fig. 2.
  • a domestic clothes dryer with a rotatable drum and an open air circulating circuit is shown.
  • the improved air suction and discharge device according to the invention.
  • said device substantially comprises an outer structural element 1, which forms at least a part of the rear wall of the dryer, and an inner structural element 2.
  • Said outer and inner elements are able to be snap-action coupled longitudinally in order to provide an end portion of the discharge circuit for the moisture and an inlet portion of the suction conduit for the fresh air.
  • each element 1 and 2 has a properly shaped, single-piece structure and the unit formed by the snap-action coupling of said elements performs the air suction and discharge functions into and from the dryer.
  • the outer element 1 has a plate portion 3 and a conduit portion comprising two walls 4, 5 projecting toward the interior of the dryer.
  • the plate portion 3 has a rectangularly shaped body (Fig. 2), the upper of which is provided with at least an air inlet 6, whereas the lower part is provided with a circular outlet 7 for discharging the moisture.
  • the cross section of the plate portion 3 (Fig. 1) is rectilinear in the lower portion of the inlet 6 and has a stepped profile in the upper portion of the same.
  • the upper edge of the inlet 6 projects towards the interior of the dryer.
  • the walls 4, 5 of the element 1 are located below the inlet 6 and define, together with the portion of the plate 3 between said walls, a portion of conduit having a U-shaped cross section.
  • the inner element 2 similarly to the outer element 1, shows two different portions, i.e. a lower shell 9 with a semicircular cross section and an upper baffle 10 integral with the shell 9 and protruding upwards from its upper edge.
  • the baffle 10 is substantially vertical and its free edge 11 is bent toward the rear wall of the dryer.
  • conduit portion defined by the walls 4, 5 of the outer element 1 and the shell 9 of the inner element 2 can easily be coupled to each other by means of snap-action fasteners 12 integral with and placed along the connection edges of the elements (Fig. 1 shows only fasteners 12 on the lower edges).
  • Fig. 3 shows the so shaped discharge conduit which is extending horizontally and is provided, besides the outlet 7 in the outer element 1, with two further outlets 13, 14 located at its opposite ends.
  • the outlet 13 is a lateral opening for discharge ing the moisture, while the mouth of the outlet 14 is substantially 45° oriented to form a releasable connection, with the interposition of a sealing ring 15, together with a corresponding opening 16 of a two-way fitting 17 which is fastened by screw means (not shown) to the rear wall of the dryer.
  • the two-way fitting 17 has an outlet 18 on one side and an opening 19 on another side for the connection to the delivery conduit 20 of a fan 21.
  • connection of elements 1 and 2 allows also to obtain, above the discharge conduit, said labyrinth inlet path, which is defined by the upper edge of the inlet 6 and the baffle 10 having the bent edge 11.
  • the outer element 1 also forms at least a part of the rear wall of the dryer and is secured to said wall by means of screw means 22.
  • the dryer is provided with an suction opening 6 and three discharge outlets 7, 13, 18, respectively, which are positioned on two sides and on the rear wall of the apparatus to allow the discharge of the moisture in the most favorable direction with respect to the positioning of the dryer in the room.
  • the discharge outlets which are possibly not utilized are provided with closing caps (known per se and not shown), while the outlet selected for the discharge of moisture is connected by means of a bush with a flexible discharge conduit, which conveys the moisture outside the room.
  • the closing caps and connecting bush may be connected to the corresponding outlets by means of snap-action couplings similar to those which are used to join elements 1 and 2.
  • connection between the opening 14 of the discharge conduit and the opening 16 of the two-way fitting 17 can be easily released by traction in order to remove the device from the dryer.
  • Elements 1 and 2 can be easily disaccoupled, by loosening the snap-action fastener 12, and it is ensured the possibility to inspect the interior of the suction and discharge conduits.
  • air is sucked through the opening 6, flows along the suction conduit, is heated by electrical resistances 23, enters the drum 24, from which moisture flows out which flows through the conduit 25, the fan 21 and the delivery conduit 20. Then, moisture reaches the discharge conduit and is discharged through one or more openings 7, 13, 18 depending on the choice of the user.
  • the inlet portion of the suction conduit forms a labyrinth path defined by the upper edge of the opening 6 and the bent edge 11 of the baffle 10; this labyrinth path prevents possible leakages due to water sprinklings from the room into the dryer so as to fulfil the security standards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)

Claims (3)

1. Vorrichtung zum Ansaugen und Abführen von Luft für einen Wäschetrockner für Haushaltszwecke, mit einer umlaufender Trommel (24), Heizungsmittein (23) und einem Lüter (21), welche geeignet sind in einem offenen Luftumlaufskreis (6; 25; 20; 17; 7, 13, 18) zusammengefasst zu werden, solche Vorrichtung ist gekennzeichnet durch:
- ein erste Element (1), das mindestens teilweise die Wäschetrockner-Rückwand bildet und eine Ansaugsöffnung (6), eine Abführöffnung (7) sowie zwei, in deren Innenseite waagrecht liegenden Wände (4, 5) umfasst; wobei ist solche Ansaugsöffnung über der oberen waagrechten Wand (5) angeordnet; solche Wände (4, 5) umfassen solche Abführöffnung (7) und zusammen mit dem zwischen solchen Wänden liegenden Teil (3) einen U-förmig Querschnitt aufweisenden Teil (3, 4, 5) bilden;
- ein zweite Element (2), das in das Innere des Wäschetrockners angeordnet und mit einer unteren, einen halbkreisförmig Querschnitt aufweisenden, der Rückwand des Wäschetrockners zugewandten Schale (9) sowie einer oberen Scheidewand (10) versehen ist, welche einstückig mit der Schale (9) ausgebildet und von deren oberen Rand aufwärtsgerichtet ist;
- wobei sind solche erste und zweite Elemente (1, 2) geeignet durch schnappende Rastvorrichtungen (12) derart gekuppelt zu werden, dass solcher U-förmig ausgestaltete Teil (3, 4, 5) des ersten Elements (1) und solcher Schale-Teil (9) des zweiten Elements (2) den Endteil der Feuchtluftabführleitung bilden, welche Leitung mit den miteinander gekuppelten Elementen (1, 2) verbunden ist und dass der obere Rand der Ansaugsöffnung (6) des ersten Elementes (1) und die senkrechte Scheidewand (10) des zweiten Elementes (2) den Anfangsteil der Umgebungsluftansaugsstrecke bilden.
2. Vorrichtung nach Patentanspruch 1, dadurch gekennzeichnet dass der obere Rand der Umgebungsluftansaugsöffnung (6) gegen die Wäschetrockner-Frontwand gerichtet und die Scheidewand (10) mit einem gegen die Wäschetrockner- Rückwand gerichteten freien Rand (11) versehen ist; wobei ist solche obere Rand der Ansaugsöffnung (6) geeignet mit solchen freien Rand (11) der Scheidewand (10) zusammenzuwirken, um eine labyrinthartige Eingangsstrecke für die von aussen des Wäschetrockners angesaugten Luft zu bilden.
3. Vorrichtung nach vorhergehenden Patentansprüchen, dadurch gekennzeichnet dass die von den miteinander gekuppelten Elementen (1, 2) gebildete Abführleitung sich in waagrechten Richtung ersteckt und eine in das erste Element (1) gewonnene Öffnung (7), eine seitliche Abführöffnung (13) und eine Öffnung (14) besitzt, deren Mündung im wesentlichen zu einem 45°-Winkel ausgerichtet ist und eine lösbare Verbindung über einen zwischengeschalteten Dichtungsring (15) mit einer entsprechenden Öffnung (16) eines Zweiwege-Anschlussstückes (17) bildet, welcher einerseits mit einem seitlichen Abführauslass (18) und anderseits mit einer Öffnung (19) zur Verbindung mit der Förderleitung (20) eines Lüfters (21) versehen ist.
EP82103096A 1981-06-05 1982-04-10 Vorrichtung zum Ansaugen und Abführen von Luft für Wäschetrockner Expired EP0066692B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82103096T ATE15703T1 (de) 1981-06-05 1982-04-10 Vorrichtung zum ansaugen und abfuehren von luft fuer waeschetrockner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8134021U IT8134021V0 (it) 1981-06-05 1981-06-05 Dispositivo di aspirazione e di scarico dell'aria per un asciugabiancheria domestico.
IT3402181U 1981-06-05

Publications (3)

Publication Number Publication Date
EP0066692A2 EP0066692A2 (de) 1982-12-15
EP0066692A3 EP0066692A3 (en) 1983-02-09
EP0066692B1 true EP0066692B1 (de) 1985-09-18

Family

ID=11238731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103096A Expired EP0066692B1 (de) 1981-06-05 1982-04-10 Vorrichtung zum Ansaugen und Abführen von Luft für Wäschetrockner

Country Status (4)

Country Link
EP (1) EP0066692B1 (de)
AT (1) ATE15703T1 (de)
DE (1) DE3266305D1 (de)
IT (1) IT8134021V0 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100446758B1 (ko) * 2001-08-22 2004-09-01 엘지전자 주식회사 의류 건조기
DE102017101878A1 (de) 2017-01-31 2018-08-02 Miele & Cie. Kg Abluftwäschetrockner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675628A (en) * 1951-10-03 1954-04-20 Hamilton Mfg Co Laundry drier
US3066422A (en) * 1959-01-07 1962-12-04 Blackstone Corp Clothes driers
US3805404A (en) * 1973-07-02 1974-04-23 I Gould Water cooled condenser dryer for laundry center
US3892048A (en) * 1974-05-29 1975-07-01 White Westinghouse Corp Clothes dryer

Also Published As

Publication number Publication date
IT8134021V0 (it) 1981-06-05
ATE15703T1 (de) 1985-10-15
EP0066692A3 (en) 1983-02-09
EP0066692A2 (de) 1982-12-15
DE3266305D1 (en) 1985-10-24

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