EP0245721B1 - Waschmaschinentrommel mit Vorrichtungen zur Bewässerung von Wäsche - Google Patents
Waschmaschinentrommel mit Vorrichtungen zur Bewässerung von Wäsche Download PDFInfo
- Publication number
- EP0245721B1 EP0245721B1 EP19870106336 EP87106336A EP0245721B1 EP 0245721 B1 EP0245721 B1 EP 0245721B1 EP 19870106336 EP19870106336 EP 19870106336 EP 87106336 A EP87106336 A EP 87106336A EP 0245721 B1 EP0245721 B1 EP 0245721B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- laundry
- washing machine
- scoop
- water
- 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
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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
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
- D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
- D06F37/065—Ribs, lifters, or rubbing means forming part of the receptacle ribs or lifters having means for circulating the washing liquid
Definitions
- the invention relates to a drum washing machine with a laundry drum driven more slowly during a wetting phase than during a cleaning phase, and with scooping devices which project into the drum and have hollow drivers and airfoils, which are designed and arranged in such a way that they supply amounts of water in raised positions during the wetting phase at most take in from the outside of the horizontal drum axis and store it temporarily.
- Such a drum washing machine is known from DD patent 37 560.
- scoop blades are arranged as scooping devices within the carrier cavities, through which a considerable part of this liquid is to be scooped when passing through the sump of water or alkali standing in the tub, and during the upward movement of this carrier via perforations arranged in the flanks of the carrier in the drum.
- perforations arranged in the flanks of the carrier in the drum.
- the scooped amount of water will flow as soon as it is scooped under the dynamic pressure that arises in the driver cavity and immediately after the driver exits the sump via the perforations in the driver flanks and then flow back along the inner wall of the drum to the sump without significantly wetting the laundry to have.
- a washing machine is known from GB-A-390 470, the drum drivers of which have open driver backs and pocket-like bulges in their flanks and in the vicinity of their regions directed towards the drum, drainage holes.
- the bulges lead to the fact that they are absorbed by the open carrier backs Amounts of water are only released into the drum interior when the driver in question is almost at the zenith of its movement path.
- the time remaining for it to be completely emptied is too short. The laundry lying in the drum is then insufficiently or too slowly wetted.
- US-A-3 201 958 describes a washing machine whose drum drivers are divided in the direction slow to the drum axis.
- GB-A-673 887 describes a washing machine, the drum drivers of which have open backs with additional blades. However, their flanks are flat, in most of the exemplary embodiments set at an angle to the drum radius and perforated on the entire surface. In the embodiment shown in FIG. 3, however, one flank of the driver (namely the one on which the airfoil is rooted) is set radially and is not perforated.
- the amount of water scooped in the driver can be carried along over a certain angular movement of the drum, quite in contrast to the other exemplary embodiments, in which the amount of water absorbed immediately flows back through the flood holes and underflows the laundry instead of irrigating it from above.
- FIG. 3 of GB-A-673 887 only release their amount of water from a position at a height above the horizontal drum axis to the drum interior, somewhat late; because when swinging due to the rotation of the drum even at a reduced wetting speed, the rain is driven to the opposite drum wall when it is released from this height.
- the example of FIG. 3 also has the disadvantage that the desired wetting function is suspended when the drum rotates in the opposite direction, so that the layering of the laundry required for good and quick wetting is significantly impaired.
- the invention has for its object to improve a drum washing machine of the type mentioned so that the amount of water used in each case wets the laundry stored in the drum as quickly as possible and without losses.
- this object is achieved in that the driver cavities are delimited by a driver back arranged in the drum contour and having the airfoils and divided into chambers transverse to the drum axis, to which at least one airfoil is assigned in each case, that the airfoils of adjacent chambers have different directions of rotation Assigned to the drum and aligned opposite to the airfoil of the adjacent chamber and that the scooping devices are designed and arranged in such a way that during the wetting phase they at the earliest the amount of water from a height in the region of the second eighth of the drum rotation, calculated from the lowest point until no later than the end of the seventh eighth of the drum rotation into the drum interior.
- Such a design and arrangement of scooping devices can for the first time ensure that the laundry is irrigated from above within a very short time, avoiding losses of the scooping water quantities, i.e. is wetted.
- the fact that the airfoils are distributed over at least two chambers and are oriented opposite to the airfoil of the neighboring chamber enables the desired irrigation effect in both directions of drum rotation to be ensured in a simple manner. The wetting of the laundry takes place more intensively because it is layered again and again in the drum.
- the invention can be developed in a particularly advantageous manner in that the drivers are part of the scooping devices and have airfoils and flood holes on their bottoms directed towards the drum. Scoops designed in this way do not occupy their own space on the circumference of the drum and can be easily represented in terms of production technology.
- drivers designed for scooping devices form excellent possibilities for temporarily storing the required quantities of water until the corresponding driver is located far enough above the laundry stored in the drum. From this position, the temporarily stored amount of water can rain through the flood holes in a finely divided form over the laundry.
- Carriers designed in this way are advantageously further developed in that the airfoils partially close off the carrier cavities which are open towards the outside of the drum on at least one of their edges running parallel to the axis of rotation of the drum.
- the driver cavities are closed well enough to the outside, so that scooped liquid cannot run out prematurely and cannot flow out again.
- Another development of the invention has the same advantages, in which the drivers are unbroken on their flanks facing inward from the drum and their flanks form troughs together with adjacent lateral surfaces.
- Such drivers store the scooped water up to about the level of the horizontal drum axis in their troughs and release this amount of water as soon as the driver tips over with its free end.
- the laundry is also advantageously irrigated from above and completely wetted in a very short time during both drum rotation directions.
- the tub 1 in FIG. 1 contains in its upper area a filling opening 2 for detergent introduced from a detergent dispenser 3 together with feed water.
- the bottom of the lye container 1, which is kept as close as possible to the drum 4, has a recess 5 in which the heating elements 6 required for heating the lye are arranged.
- a recess 5 At the deepest point of the recess 5 there is an outlet opening 7 which is kept closed by a closure body 8 as long as a drain pump (not shown) does not suck on the drain line 9.
- This closure body 8 has the task of keeping the space below the drain opening 7 closed as long as there is detergent required for washing the laundry inside the tub.
- scoop devices 12 are arranged on the drum circumference in the area of the drivers, which when the drum is rotated, for example in the direction of the arrow 13, can fill the respective intermediate storage space, here the driver 11, from the solution stock in the recess 5.
- this scooped amount of water is first temporarily stored and only released into the drum interior via outlet openings in the intermediate storage space when the intermediate storage space has reached a certain height above the laundry 10 lying in the drum 4.
- the arrows 14 indicate the manner in which the water so raised rains over the laundry 10.
- the dash-dot driver 11 of the drum 4 is just in its lowest position. Here he dips with his scooping devices into the lye inside the recess 5 under the bottom of the tub 1 and already absorbs some of the lye. When turning further in the direction of arrow 13, the scooping devices 12 fill the interior of the driver 11 higher than would occur in the static state.
- the exemplary embodiment shown in FIGS. 5 and 6 for scooping devices on the driver 11 contains, as shovel blades, a plurality of ladles 20 which consist of cut-open features in the sheet metal of the driver back 26, which is part of the drum jacket 21.
- the ladles 20 are arranged in two rows next to one another and offset from one another parallel to the axis of rotation 24 of the drum 4.
- the roof-shaped driver 11 is arranged in the interior of the drum 4 and has a plurality of flood holes 17, from which the amount of water drawn can rain over the laundry.
- the roof part of the driver has fastening tabs 22 on its foot edges, which are inserted through suitable slots in the drum jacket and are bent outside towards the drum jacket
- the interior of the driver 11 is divided by bulkheads 23 into several chambers 25, which are covered by the driver back 26 in FIG. 6.
- a ladle 20 is assigned to each chamber 25.
- the ladles of adjacent chambers are directed opposite each other, so that the 1st, 3rd, 5th etc. chamber in one drum direction of rotation, and the 2nd, 4th, 6th etc. chamber in the other direction of rotation are filled with water and their Empty the contents from the raised positions above the laundry.
- the laundry drum 4 shown in detail in FIG. 7 contains, for example, six drivers, of which three drivers 27 are shown here. Instead of a number of six, however, the drum can also contain three drivers as usual.
- drivers are trough-shaped on their flanks, so that, as the driver in the middle position shows, water can be temporarily stored in the upper trough 28 and raised to a height from which it is on the trough edge on the inside of the drum on the head of the driver 27 can rain on the laundry.
- a partially permeable plate 29, which covers the trough 28, is shown on the driver located in the middle position.
- the partial permeability of the plate 29 results from holes 30, which are preferably arranged in the edge region of the plate, so that the water can be well absorbed from the swamp in the trough on the one hand and can escape from the trough via the driver's head on the other hand.
- This plate prevents the laundry lying at the bottom of the laundry drum from already sucking the trough 28 before the driver 27 has been lifted up. As a result, the laundry would soak itself very strongly, but only in a very limited area, and the other areas of the laundry remained almost dry. A more effective wetting of the laundry, as already explained above, only results from sprinkling the laundry from above.
- FIG. 8 Another embodiment of a driver 31 with the same function as the driver 27 described with reference to FIG. 7 is shown in FIG. 8. It contains a support strip 32 with an edge bead 33 pointing inward of the drum. On its undersides, the edge bead has slit-like depressions which serve to receive a partially permeable cover plate 34 for the troughs 35 which result on both sides of the support strip 32.
- the jacket-side edges of the cover plates 34 have bent tabs 36, which are inserted into slots in the jacket plate 37 of the laundry drum 4.
- the cover plates 34 have large holes 38 in the area near the drum casing 37, which enable rapid absorption of water from the sump into the troughs 35, and small holes 39 in the area near the edge bead 33, which allow metered discharge of the scooped water from the troughs allow.
- scooping devices Any modification of the scooping devices is possible within the scope of the invention. These do not necessarily have to be functionally and constructively related to the drivers, but can also be used as special facilities be distributed around the circumference of the drum. For example, in the direction of rotation of the drum, blades can be arranged in front of drivers according to FIGS. 7 and 8 on the drum jacket, which blades are still immersed in liquid when their level only affects the drum jacket. If, by means of any devices on the drum, certain amounts of water are drawn from the storage located at the bottom of the tub and lifted to such an extent that the amounts poured down onto the laundry from above, the inventive idea is met.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Treatment Of Fiber Materials (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3615350 | 1986-05-06 | ||
DE3615350 | 1986-05-06 | ||
DE3712118 | 1987-04-10 | ||
DE19873712118 DE3712118A1 (de) | 1986-05-06 | 1987-04-10 | Trommelwaschmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0245721A1 EP0245721A1 (de) | 1987-11-19 |
EP0245721B1 true EP0245721B1 (de) | 1991-09-04 |
Family
ID=25843532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19870106336 Expired - Lifetime EP0245721B1 (de) | 1986-05-06 | 1987-05-02 | Waschmaschinentrommel mit Vorrichtungen zur Bewässerung von Wäsche |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0245721B1 (el) |
DE (2) | DE3712118A1 (el) |
ES (1) | ES2023846B3 (el) |
GR (1) | GR3003283T3 (el) |
HK (1) | HK102895A (el) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU785139B2 (en) * | 2000-07-13 | 2006-10-05 | Fisher & Paykel Appliances Limited | Perforation of laundry machine drum |
EP4163431A1 (de) | 2021-10-11 | 2023-04-12 | Miele & Cie. KG | Maschine zum waschen und/oder trocknen von wäsche und trommel einer derartigen maschine |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3726651A1 (de) * | 1987-08-11 | 1989-02-23 | Miele & Cie | Trommelwaschmaschine |
DE3726613A1 (de) * | 1987-08-11 | 1989-02-23 | Miele & Cie | Waschmaschinentrommel |
DE3805803C2 (de) * | 1987-08-25 | 1998-12-24 | Bosch Siemens Hausgeraete | Verfahren zum benetzen von in die Wäschetrommel eingebrachten Wäschestücken |
DE3728940C2 (de) * | 1987-08-29 | 1998-10-01 | Miele & Cie | Mantelbeschickbarer Waschtrockner |
DE3741177A1 (de) * | 1987-12-04 | 1989-06-15 | Bosch Siemens Hausgeraete | Verfahren zum betreiben einer trommelwaschmaschine und trommelwaschmaschine zur durchfuehrung des verfahrens |
DE3803195C2 (de) * | 1988-02-03 | 1994-08-18 | Bosch Siemens Hausgeraete | Mitnehmerschöpfrippe für eine Waschtrommel |
DE3820409A1 (de) * | 1988-06-15 | 1989-12-21 | Bosch Siemens Hausgeraete | Vorrichtung zum umwaelzen von wasch- oder spuellauge in einer trommelwaschmaschine |
DE3825377A1 (de) * | 1988-07-26 | 1990-02-01 | Bosch Siemens Hausgeraete | Waschtrommel |
ES2042054T3 (es) * | 1988-11-14 | 1993-12-01 | Miele & Cie. Gmbh & Co. | Procedimiento de lavado para una lavadora de tambor controlada por programa. |
DE3933355A1 (de) * | 1988-11-14 | 1990-05-17 | Miele & Cie | Waschverfahren fuer eine programmgesteuerte trommelwaschmaschine |
DE3913746C2 (de) * | 1989-04-26 | 1995-08-17 | Miele & Cie | Trommelwaschmaschine |
IT1249885B (it) * | 1991-05-31 | 1995-03-30 | Merloni Elettrodomestici Spa | Cestello per macchine lavabiancheria |
DE4205691A1 (de) * | 1992-02-25 | 1993-08-26 | Waschgeraete Gmbh | Trommel fuer eine waschmaschine |
DE4310595A1 (de) * | 1993-03-31 | 1994-10-06 | Bosch Siemens Hausgeraete | Waschmaschine mit einer reversierend betriebenen Wäschetrommel |
DE4342626C2 (de) * | 1993-12-14 | 2002-10-02 | Bsh Bosch Siemens Hausgeraete | Einrichtung zum Zuführen von Zulaufwasser und/oder Waschmittel in einer mantelseitig beschickbaren Trommelwaschmaschine |
DE4342627B4 (de) * | 1993-12-14 | 2006-06-22 | BSH Bosch und Siemens Hausgeräte GmbH | Einrichtung zum Zuführen von Zulaufwasser und/oder Waschmittel in einer automatisch steuerbaren Trommelwaschmaschine |
CN1066223C (zh) * | 1995-05-31 | 2001-05-23 | Bsh博施及西门子家用器具有限公司 | 外壳侧加料的滚筒式洗衣机的加水和/或加洗涤剂的装置 |
CN1069363C (zh) * | 1995-05-31 | 2001-08-08 | Bsh博施及西门子家用器具有限公司 | 自动控制的滚筒式洗衣机的加水和/或加洗涤剂的装置 |
DE19859571A1 (de) * | 1998-12-22 | 2000-06-29 | Bsh Bosch Siemens Hausgeraete | Wäschetrommel |
DE10031037A1 (de) * | 2000-06-14 | 2001-12-20 | Pharmagg Systemtechnik Gmbh | Verfahren zur Naßbehandlung von Wäsche |
KR100465724B1 (ko) * | 2002-12-26 | 2005-01-13 | 엘지전자 주식회사 | 드럼세탁기의 리프트 |
DE102005012426A1 (de) * | 2005-03-17 | 2006-09-21 | BSH Bosch und Siemens Hausgeräte GmbH | Benetzungsprozess für die Wäsche in einer programmgesteuerten Waschmaschine |
ES2276627B1 (es) | 2005-12-02 | 2008-04-16 | Bsh Electrodomesticos España, S.A. | Tambor de lavadora. |
EP1816250B1 (en) * | 2006-02-02 | 2010-04-07 | Electrolux Home Products Corporation N.V. | Improvement in the lifting ribs of the drum of a clothes washing machine |
ITTO20060429A1 (it) * | 2006-06-13 | 2007-12-14 | Iar Siltal Spa | Macchina lavabiancheria, particolarmente a caricamento frontale |
US20090276966A1 (en) * | 2006-07-06 | 2009-11-12 | Bsh Bosch Und Siemens Hausgerate Gmbh | Washing machine with hollow agitators |
DE102007036619B3 (de) * | 2007-08-02 | 2008-09-18 | Miele & Cie. Kg | Trommel für eine Waschmaschine und Waschmaschine |
US8024947B2 (en) * | 2008-01-11 | 2011-09-27 | Bsh Home Appliances Corporation | Front-loading washing machine having liquid distributing paddles |
KR101049140B1 (ko) * | 2009-01-23 | 2011-07-15 | 엘지전자 주식회사 | 세탁장치 |
ES2376969T3 (es) | 2009-10-06 | 2012-03-21 | Miele & Cie. Kg | Tambor para una lavadora |
EP2700744B1 (de) * | 2012-08-20 | 2015-03-04 | Miele & Cie. KG | Trommel für eine Waschmaschine |
DE102013104005B4 (de) * | 2013-04-19 | 2017-04-06 | Jensen Gmbh | Waschverfahren und Taktwaschanlage |
KR102053143B1 (ko) * | 2013-04-30 | 2019-12-06 | 엘지전자 주식회사 | 세탁기 |
KR102488373B1 (ko) * | 2015-09-04 | 2023-01-12 | 엘지전자 주식회사 | 세탁물 처리기기 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE179891C (el) * | ||||
GB191001215A (en) * | 1910-01-17 | 1910-09-15 | Lorenzo Reginald English | Improvements in Washing Machines. |
CH61679A (de) * | 1912-03-11 | 1913-10-16 | Weltert Zust Josephine | Verbesserte Begießeinrichtung an drehbaren Waschtrommeln für Waschmaschinen |
FR458768A (fr) * | 1913-05-27 | 1913-10-18 | Jacques Leon Caisso | Tambour pour machines à laver le linge, à double enveloppe |
GB222420A (en) * | 1924-07-07 | 1924-10-02 | Walter Charles Croxon | Improvements in domestic or laundry clothes-washing machines |
GB390470A (en) * | 1932-12-24 | 1933-04-06 | David Kiel Tullis | Improvements relating to washing machines |
FR820133A (fr) * | 1936-07-07 | 1937-11-04 | D App Thermo Mecaniques Sa Con | Machine à laver |
GB673887A (en) * | 1948-05-11 | 1952-06-11 | Braithwaite I & Son Eng Ltd | Improvements in washing, dry cleaning or similar machines |
CH283721A (fr) * | 1949-04-26 | 1952-06-30 | Braithwaite I & Son Eng Ltd | Machine pour rafraîchir des pièces de vêtement. |
FR991842A (fr) * | 1949-05-20 | 1951-10-10 | Perfectionnements aux machines à laver, rincer et essorer le linge et analogues | |
FR1299679A (fr) * | 1961-06-15 | 1962-07-27 | Dispositif pour la circulation des bains dans les appareils de lavage, de blanchiment, de rinçage et autres appareils analogues | |
GB1000033A (en) * | 1961-09-21 | 1965-08-04 | Polymark Int Ltd | Improvements in laundry washing machines |
DE3324481A1 (de) * | 1983-07-07 | 1985-01-24 | Miele & Cie GmbH & Co, 4830 Gütersloh | Waschverfahren fuer eine programmgesteuerte trommelwaschmaschine |
DE3527724A1 (de) * | 1985-08-02 | 1987-02-12 | Licentia Gmbh | Trommelwaschmaschine |
IT1190075B (it) * | 1986-02-28 | 1988-02-10 | Smeg Elettrodomestici | Macchina lavabiancheria perfezionata a ridotto consumo energetico |
IT1192078B (it) * | 1986-04-17 | 1988-03-31 | Zanussi Elettrodomestici | Macchina lavabiancheria |
IT1190538B (it) * | 1986-04-28 | 1988-02-16 | Merloni Elettrodomestici Spa | Perfezionamento nel cestello delle macchine lavabiancheria |
-
1987
- 1987-04-10 DE DE19873712118 patent/DE3712118A1/de not_active Withdrawn
- 1987-05-02 ES ES87106336T patent/ES2023846B3/es not_active Expired - Lifetime
- 1987-05-02 DE DE8787106336T patent/DE3772618D1/de not_active Expired - Lifetime
- 1987-05-02 EP EP19870106336 patent/EP0245721B1/de not_active Expired - Lifetime
-
1991
- 1991-12-05 GR GR91401176T patent/GR3003283T3/el unknown
-
1995
- 1995-06-22 HK HK102895A patent/HK102895A/xx not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU785139B2 (en) * | 2000-07-13 | 2006-10-05 | Fisher & Paykel Appliances Limited | Perforation of laundry machine drum |
EP4163431A1 (de) | 2021-10-11 | 2023-04-12 | Miele & Cie. KG | Maschine zum waschen und/oder trocknen von wäsche und trommel einer derartigen maschine |
BE1029833A1 (de) | 2021-10-11 | 2023-05-04 | Miele & Cie | Maschine zum Waschen und/oder Trocknen von Wäsche und Trommel einer derartigen Maschine |
Also Published As
Publication number | Publication date |
---|---|
EP0245721A1 (de) | 1987-11-19 |
HK102895A (en) | 1995-06-30 |
GR3003283T3 (en) | 1993-02-17 |
DE3772618D1 (de) | 1991-10-10 |
DE3712118A1 (de) | 1987-11-12 |
ES2023846B3 (es) | 1992-02-16 |
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