EP0374411A1 - Séchoir à linge avec un protége filtre - Google Patents

Séchoir à linge avec un protége filtre Download PDF

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Publication number
EP0374411A1
EP0374411A1 EP89119397A EP89119397A EP0374411A1 EP 0374411 A1 EP0374411 A1 EP 0374411A1 EP 89119397 A EP89119397 A EP 89119397A EP 89119397 A EP89119397 A EP 89119397A EP 0374411 A1 EP0374411 A1 EP 0374411A1
Authority
EP
European Patent Office
Prior art keywords
drum
tumble dryer
dryer according
frame
air duct
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
EP89119397A
Other languages
German (de)
English (en)
Other versions
EP0374411B1 (fr
Inventor
Günter Dr.-Ing. Wentzlaff
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.)
BSH Hausgeraete GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0374411A1 publication Critical patent/EP0374411A1/fr
Application granted granted Critical
Publication of EP0374411B1 publication Critical patent/EP0374411B1/fr
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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting arrangements

Definitions

  • the invention is based on a drum tumble dryer with a laundry deflector, consisting of a perforated, drum-side base and a cup-shaped air guide housing which, in the operating position, at least approximately fills the cavity of the front loading opening of the tumble dryer and contains a removable fluff filter which is located in the air path between the holes Bottom and an exhaust duct led to the air duct housing is used and consists of a frame with a clamped screen made of fine-meshed sieve material.
  • Such a tumble dryer is known from German Offenlegungsschrift 33 04 441.
  • the drying air introduced into the drum by a drying air blower is passed through the damp laundry falling around in the drying drum. It absorbs moisture and laundry fluff and guides both through the air duct housing through channels into the ambient air or to a heat exchanger.
  • the lint contained in the dry air should neither get into the ambient air nor to a heat exchanger, which is why the pot-shaped air duct housing contains a frame designed as a lint filter with a clamped screen made of fine-meshed sieve material.
  • Such a fluff filter is known to be removable from the air duct housing, for which purpose it is usually pulled out of an at least almost vertically arranged shaft. The removed fluff filter can easily be cleaned of fluff and is then reinserted into the air duct housing.
  • the known lint filters Since the loading opening is also circular and of limited size, the known lint filters have a small air passage area. Therefore, they absorb relatively little fluff and ultimately form an undesirably large flow resistance.
  • the screen surface resembles a circle cut off on both sides and is therefore even smaller than the perforated surface of the laundry deflector.
  • tumble dryers are known (brochure of the company AEG "washing machines, dryers, slingshots 1988", publication number H 245 104 300 - 0288640./04 -, page 31), in which the fluff filter is permanently installed in the pot-shaped and laterally pivotable laundry deflector and is covered by a sieve cover that can be folded up about a horizontal axis and is firmly connected to the laundry deflector.
  • the circular fluff filter already takes up a substantial part of the possible air passage area.
  • the folded-up sieve cover also represents a risk of damage to yourself or its storage or for the control panel if the laundry deflector is slammed with the dryer door in this sieve cover position.
  • the invention has for its object to provide the largest possible screen area for a lint filter mentioned above, so that the air flowing through the screen has a low speed and therefore lint can settle more easily on the screen mesh.
  • the large screen area should also offer a large amount of fluff and give the designer the opportunity to reduce the mesh size of the screen without the risk of excessive air resistance.
  • the bottom of the laundry deflector is designed as a door or flap which can be pivoted or folded about a hinge attached to the side or in the lower region on the air guide housing and, in the operating position, encloses a receiving space for the frame.
  • the designer can make the door or flap at least approximately as large as the bottom of the laundry deflector and at the same time give it the same shape. This increases the sieve area significantly, so that the mesh size can be chosen smaller without increasing the air resistance. In the end, the air can pass this rather calm zone of the fluff filter more slowly and the laundry fluff carried along can be deposited more easily on the fluff filter.
  • the lint filter remains easily removable for easy cleaning on both sides and can therefore be easily replaced in the event of damage. There is no risk of damage to the operator or parts of the dryer from the opened door or flap.
  • the hinge side of the laundry deflector will be preferred because a door hinged and open on the other side makes handling and accessibility of the lint filter difficult. The slamming of the laundry deflector can therefore only initiate the closing of the door or flap at the same time without impeding the closing movement of the laundry deflector.
  • the invention is expediently designed to arrange a sealing strip surrounding the frame between the frame and the air guide housing.
  • the sealing strip is particularly advantageously arranged such that it is loaded in the operating position of the floor in the sense of its sealing effect. This is achieved in that the closing force for the air guide housing acts on the one hand on the bottom of the laundry deflector and is transmitted indirectly to the lint filter frame via this bottom.
  • the frame In order to utilize the clear width of the air guide housing in the sense of the lint filter as large as possible, it is proposed according to a development of the invention that the frame predominantly fills the interior of the laundry deflector or the floor.
  • the frame is designed in a circular shape, which is pressed against parts of the bottom against the sealing strip in the operating position of the base, the largest possible area of the lint filter can be used for the fine-meshed screen without the frame losing contact surface for the sealing strip would go.
  • the sealing strip is advantageously inserted into an annular groove in the air duct housing.
  • Such an annular groove can hold the preferably closed annular sealing strip securely even in heavy daily use.
  • the bottom is locked in the operating position on the air duct housing. It can be opened more easily with the door open to remove the fluff filter if, according to a further advantageous exemplary embodiment of the invention, it has a handle on its outer circumference at a point opposite the hinge.
  • the handle can be designed as a recess machined into the base circumference.
  • the bottom of the laundry deflector opens automatically when the loading door is open. As a result, the operator can be automatically reminded of cleaning the fluff filter.
  • the fluff filter can also be detachably held on the laundry deflector by means of spring catches so that it is held more securely in the operating position.
  • the lint filter can be inserted into the air duct housing by the operator in any position, the lint filter is constructed to be rotationally symmetrical and mirror-symmetrical. This is achieved in that the frame forms a circular ring and is shaped identically on both sides of the air direction.
  • the loading door 1 carries a laundry deflector 3 which fills the loading opening in the housing 2 of a drum tumble dryer (not shown in more detail) and which, with a perforated bottom 5 held on a frustoconical air guide housing 4, projects into the loading opening 13 of the washing drum 14 (FIG. 2).
  • the bottom 5 is broken through by means of air holes 9 on an area which is as large as the passage cross section of the air guide housing 4 or the fluff filter.
  • a lint filter 6 is arranged behind the floor in the air guide housing 4 and is held between the air guide housing and the floor.
  • the loading door can be pivoted about a hinge 7, which is only indicated here.
  • a door lock 8 is attached to the side opposite the hinge.
  • the base is held pivotably about a hinge 10 on the air guide housing 4 and is snapped onto the air guide housing by means of a latching hook 11.
  • a handle recess 12 is provided in the conical surface of the air duct housing 4. If there is a slight pull on the floor, it swings out so that the sieve 6 is accessible. It can now be inserted into or removed from the air duct housing.
  • the screen frame 15 can be divided into two parts according to FIG. 3.
  • the small-mesh screen fabric 18 is held between the two frame parts 16 and 17. So that the fluff filter 6 is still held securely even when the bottom 5 is opened, spring catches 19 can be attached to the bottom inside of FIG. 3, which hold the frame 15 of the fluff filter. A simple removal is possible with the bottom open, because the spring catches 17 only exert small spring forces.
  • the arrangement of the screen 6 in the laundry deflector can be seen from FIG.
  • the sieve 6 is pressed firmly against the seal 20 of the air guide housing 4, so that the moist and lint-laden drying air entering through the holes 9 in the bottom in the direction of the arrow 21 can only flow through the lint filter 6.
  • the lint filter is adapted in shape and size to the clear cross section of the laundry deflector. This results in a much better, low-loss and low-resistance routing of the air through the air duct housing.
  • the laundry deflector 3 has a bottom 22 which is mounted in the lower vertex of its contour on a hinge 23 with a horizontal axis 24 so as to be foldable.
  • the bottom 5 can be held in the closed position, similarly as in FIGS. 1 and 2, by means of a catch 11, but it does not have to be held in the closed position when the loading door 1 is open.
  • the base 5 automatically falls into the opened position (shown in broken lines in FIG. 6) when the loading door 1 is opened; because this clearly reminds the operator to remove the fluff filter 6 for cleaning.
  • the catch 11 and the recessed grip 12 can be dispensed with. So that the frame 15 of the fluff filter 6 is already held in the position matching the sealing strip 20 even in the opened position in the base 5, bearing bosses 25 for the outer contour of the frame 15 are distributed at intervals around the circumference (FIG. 4).
  • the air guide housing 4 contains an air duct 26, the inlet 27 of which is fed from an air collecting space 29.
  • the outlet 28 of the air duct 26 opens - not shown - into a continuing air duct in the housing 2 of the clothes dryer.
  • the large opening of the air collection space 29 is preferably circular and as large as the dimensions of the air duct housing allow. It is closed in the closed position of the base 5 by the fluff filter 6, the screen fabric 18 of which has an area at least as large as the large opening.
  • the large opening is surrounded by an annular groove 35, in which a sealing cord 20 is inserted.
  • This sealing cord made of an elastic material, for example rubber, presses the fluff filter 6 with its frame 15 firmly against an annular rib 30 of the base 5 when the base 5 is closed (FIGS. 2, 3 and 6).
  • the annular rib 30 does not have to seal, because the air flowing through it can only get from the drum interior to the fluff filter 6 as intended.
  • the catch 11 provided in the event that the base 5 is locked has a nose 31 which, in order to open the base, is brought out of engagement by the counter-catch 32 on the air guide housing 4.
  • Sealing lips 33 on the bottom 5 and 34 on the outer circumference of the air duct housing 4 ensure that the air does not get past the air duct housing to the outside.
  • the fluff filter 6 is preferably of symmetrical position. This means that the lint filter can be rotated and turned in any position between the floor and the air duct housing; it will always come to rest sealingly with its frame 15 between the bottom and the sealing strip 20.
EP89119397A 1988-12-23 1989-10-19 Séchoir à linge avec un protége filtre Expired - Lifetime EP0374411B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3843707 1988-12-23
DE3843707A DE3843707A1 (de) 1988-12-23 1988-12-23 Trommel-waeschetrockner mit einem waescheabweiser

Publications (2)

Publication Number Publication Date
EP0374411A1 true EP0374411A1 (fr) 1990-06-27
EP0374411B1 EP0374411B1 (fr) 1993-05-05

Family

ID=6370137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119397A Expired - Lifetime EP0374411B1 (fr) 1988-12-23 1989-10-19 Séchoir à linge avec un protége filtre

Country Status (4)

Country Link
EP (1) EP0374411B1 (fr)
DE (2) DE3843707A1 (fr)
ES (1) ES2041938T3 (fr)
HK (1) HK144395A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295667A (en) * 1994-12-01 1996-06-05 Hoover Ltd Tumble dryer lint filter
US7305775B2 (en) 2005-03-14 2007-12-11 Electrolux Home Products Corporation N.V. Household clothes drying machine with improved lint filter
KR101093988B1 (ko) * 2004-06-05 2011-12-15 엘지전자 주식회사 건조기의 도어 린트 필터 밀착 장치
KR101094548B1 (ko) 2005-01-25 2011-12-19 엘지전자 주식회사 건조기의 필터 구조
KR101143685B1 (ko) 2005-07-11 2012-05-09 엘지전자 주식회사 건조기의 필터 구조
WO2016135599A1 (fr) * 2015-02-25 2016-09-01 Gorenje Gospodinjski Aparati, D.D. Sèche-linge à filtre d'air de séchage
CN111101348A (zh) * 2018-10-26 2020-05-05 无锡小天鹅电器有限公司 门体组件和滚筒洗衣机
US20220081823A1 (en) * 2020-09-14 2022-03-17 Haier Us Appliance Solutions, Inc. Laundry appliance and additive dispensing assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304624A (en) * 1964-07-06 1967-02-21 Mc Graw Edison Co Dryer door and filter assembly
US3648381A (en) * 1970-06-09 1972-03-14 Westinghouse Electric Corp Lint trap for a clothes dryer
DE3219977A1 (de) * 1982-05-27 1983-12-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektrischer waeschetrockner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304624A (en) * 1964-07-06 1967-02-21 Mc Graw Edison Co Dryer door and filter assembly
US3648381A (en) * 1970-06-09 1972-03-14 Westinghouse Electric Corp Lint trap for a clothes dryer
DE3219977A1 (de) * 1982-05-27 1983-12-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektrischer waeschetrockner

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2295667A (en) * 1994-12-01 1996-06-05 Hoover Ltd Tumble dryer lint filter
GB2295667B (en) * 1994-12-01 1998-07-22 Hoover Ltd Tumble dryer lint filter
KR101093988B1 (ko) * 2004-06-05 2011-12-15 엘지전자 주식회사 건조기의 도어 린트 필터 밀착 장치
KR101094548B1 (ko) 2005-01-25 2011-12-19 엘지전자 주식회사 건조기의 필터 구조
US7305775B2 (en) 2005-03-14 2007-12-11 Electrolux Home Products Corporation N.V. Household clothes drying machine with improved lint filter
KR101143685B1 (ko) 2005-07-11 2012-05-09 엘지전자 주식회사 건조기의 필터 구조
WO2016135599A1 (fr) * 2015-02-25 2016-09-01 Gorenje Gospodinjski Aparati, D.D. Sèche-linge à filtre d'air de séchage
RU2664371C1 (ru) * 2015-02-25 2018-08-16 ГОРЕНЬЕ господиньски апарати, д.д. Машина для сушки белья с осушающим воздушным фильтром
CN111101348A (zh) * 2018-10-26 2020-05-05 无锡小天鹅电器有限公司 门体组件和滚筒洗衣机
US20220081823A1 (en) * 2020-09-14 2022-03-17 Haier Us Appliance Solutions, Inc. Laundry appliance and additive dispensing assembly

Also Published As

Publication number Publication date
HK144395A (en) 1995-09-15
DE3843707A1 (de) 1990-07-05
ES2041938T3 (es) 1993-12-01
DE58904280D1 (de) 1993-06-09
EP0374411B1 (fr) 1993-05-05

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