EP0600188B1 - Washing machine and process for operating a washing machine - Google Patents
Washing machine and process for operating a washing machine Download PDFInfo
- Publication number
- EP0600188B1 EP0600188B1 EP93116189A EP93116189A EP0600188B1 EP 0600188 B1 EP0600188 B1 EP 0600188B1 EP 93116189 A EP93116189 A EP 93116189A EP 93116189 A EP93116189 A EP 93116189A EP 0600188 B1 EP0600188 B1 EP 0600188B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laundry
- drum
- washing machine
- washing
- flank
- 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
Links
Images
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
Definitions
- the invention relates to a washing machine with an at least approximately horizontally mounted laundry drum, which is partly filled with lye and laundry for washing, is operated at a speed at which the laundry does not abut the drum jacket, and with drivers arranged on the inside of the drum jacket Raising the laundry from the wash bath to a height from which it falls back into the wash bath, the drivers having an asymmetrical cross-sectional profile and their flanks standing at uneven angles on the drum jacket, and which is also set up for spinning.
- Such a washing machine is known from US Pat. No. 2,214,131.
- the drivers are profiled asymmetrically because the laundry drum is only rotated in a certain direction of rotation and the drivers should oppose the laundry load in this particular direction of rotation with a sufficiently large section modulus. They are therefore particularly stiff for this direction of movement of the laundry, although consisting of thin sheet metal, due to the asymmetrical profile.
- the invention has for its object to make this known fact usable in a washing machine in such a way that items from different types of laundry fabric can be treated in a suitable manner in one and the same washing machine.
- a washing machine in which water from the lowest area of the laundry drum is taken up by the drivers and guided through drain holes in one flank of the drivers from a certain upper position into the interior of the drum, can be in a washing machine according to the invention significantly improve the wetting effect if, according to the invention, the drum is preferably operated up to only in the direction in which the drainage holes are arranged in the front flank.
- a washing machine which is suitable for carrying out such a method has drainage holes in that flank of each driver which is on the drum shell with the blunt of the two angles. This allows the greatest possible amount of water from each driver to the highest possible position before the water is released into the drum interior. This produces the best possible irrigation effect.
- a method for washing laundry in a washing machine according to the invention can advantageously be set up in such a way that the drum when washing insensitive laundry (cottons, colored clothes) from the point of view of the driver cross-sections preferably in the direction of the obtuse flank angles and when washing sensitive laundry (wool , Delicates, Easy care) is preferably turned in the direction of the more acute flank angle.
- the laundry can be treated more gently on the one hand and the formation of an indissoluble laundry ring can be prevented much better if, according to the invention, the drum is rotated in the direction of the more acute flank angles from the point of view of the driver cross sections.
- the laundry drum 1 contains three drivers 2 uniformly distributed on the inner circle of the drum shell 3.
- Their unevenly wide flanks 4 and 5 represent the parabola line of the cross-sectional profile, the apex 6 of which is eccentrically above the base lying on the drum shell 3.
- the flanks 4 and 5 are accordingly based on different angles, namely the wider flank 4 with the more acute angle ⁇ and the narrower flank 5 with the obtuse angle ⁇ .
- This asymmetrical design of the driver leads to laundry being lifted further from the view of the driver cross-sections in the direction of the obtuse angle ⁇ , that is to say in direction A (FIG. 1), than laundry which is being turned on in direction B when rotating the drum the respective wider edges 4 of the driver 2 comes to rest. From there, the laundry items slip off earlier and are therefore not raised as far as in the direction of rotation A.
- These relationships can be used to advantage in a method for washing laundry according to the invention, by washing insensitive laundry, for example cottons or colored laundry, which Drum is preferably rotated in direction A. The laundry is raised higher in this direction before it falls back into the suds bath from this greater height. This introduces a greater amount of mechanical action on the laundry items.
- Such a preference for the direction of rotation A can be given by ensuring that when setting the reversing times that the direction of rotation A is switched on longer is as the direction of rotation B. Variations of this direction of rotation ratio are suitable to take into account different degrees of laundry sensitivity.
- the washing process can be better adapted to sensitive types of laundry (e.g. wool, delicates or easy-care items) in that the direction of rotation B compared to the direction of rotation A contains larger portions in the reverse rhythm.
- the laundry is not lifted very often. Rather, it is mostly only slightly raised in direction of rotation B before it slides back into the caustic bath. So the laundry is loaded with only a small amount of mechanics.
- the steepness of the angles ⁇ and ⁇ will preferably be adjusted to the extreme points of the sensitivity scale of items of laundry to be treated, e.g. choose a very acute angle ⁇ for wool, while the angle ⁇ for linen can be very steep.
- the height h of the driver cross-section determines the possible fall height in conjunction with the choice of the angles ⁇ and ⁇ .
- a variance of the values of the obtuse angle ⁇ is not as important as the variance of the heights h, while a variance of the values of the acute angle ⁇ has a greater influence on the drop height than the height h of the driver cross section.
- the wetting effect is greatest when the drum is operated in a direction of rotation in which the drainage holes for the washing of the laundry are arranged on the front flank of the drivers. The greatest possible amount of water can then be lifted up by each driver and distributed over the laundry if the drain holes are arranged on the narrow flank 5 of the driver and the drum 1 is operated in the direction of rotation A.
- the equipment of the laundry drum according to the invention accommodates the gentle treatment of laundry. If the laundry drum is moved in the direction of rotation B during the spin cycle, the laundry is distributed around the drum circumference in such a way that parts of the laundry rest on the wider surface of the flank 4 of the catches 2 and are finally pressed there.
- the obtuse angle between the inner surface of the drum lying outside the driver and the outer surface of the flank 4 of the driver as a supplementary angle to the angle ⁇ ensures that the laundry is applied to the surfaces with almost no crease imprint. This is particularly important in laundry treatment programs in which spin phases with partially higher spin speeds (over 800 rpm) are used in the rinse section and in the final spin program.
- washing rings that usually occur during spinning no longer form so stably along the drum jacket, because on the one hand the crease impression on the drivers is considerably less and on the other hand the laundry is largely hollow from the upper apex line of the drivers above the steeper flank 5, i.e. is not in direct contact with the drum jacket.
- the measures according to the invention bring about a better mixing of the laundry without Tangles and with improvement of cleaning results.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Description
Die Erfindung geht aus von einer Waschmaschine mit einer wenigstens annähernd horizontal gelagerten Wäschetrommel, die zum Waschen teilweise mit Lauge und Wäsche gefüllt ist, mit einer Drehzahl betrieben wird, bei der sich die Wäsche nicht am Trommelmantel anlegt, und mit innen am Trommelmantel angeordneten Mitnehmern zum Emporheben der Wäsche aus dem Laugenbad bis in eine Höhe, aus der sie ins Laugenbad wieder zurückfällt, wobei die Mitnehmer ein asymmetrisches Querschnittsprofil haben und ihre Flanken in ungleichen Winkeln auf dem Trommelmantel stehen, und die auch zum Schleudern eingerichtet ist.The invention relates to a washing machine with an at least approximately horizontally mounted laundry drum, which is partly filled with lye and laundry for washing, is operated at a speed at which the laundry does not abut the drum jacket, and with drivers arranged on the inside of the drum jacket Raising the laundry from the wash bath to a height from which it falls back into the wash bath, the drivers having an asymmetrical cross-sectional profile and their flanks standing at uneven angles on the drum jacket, and which is also set up for spinning.
Eine derartige Waschmaschine ist aus der US-Patentschrift 2 214 131 bekannt. Dort sind die Mitnehmer asymmetrisch profiliert, weil die Wäschetrommel nur in einer bestimmten Drehrichtung gedreht wird und die Mitnehmer der Wäschelast in dieser bestimmten Drehrichtung ein genügend großes Widerstandsmoment entgegensetzen sollen. Sie sind daher für diese Bewegungsrichtung der Wäsche, obwohl aus dünnem Blech bestehend, durch das asymmetrische Profil besonders steif ausgebildet.Such a washing machine is known from US Pat. No. 2,214,131. There, the drivers are profiled asymmetrically because the laundry drum is only rotated in a certain direction of rotation and the drivers should oppose the laundry load in this particular direction of rotation with a sufficiently large section modulus. They are therefore particularly stiff for this direction of movement of the laundry, although consisting of thin sheet metal, due to the asymmetrical profile.
Aus vielen anderen, hier nicht näher aufgeführten Druckschriften ist bekannt, daß unterschiedliche Mitnehmerformen ebenfalls unterschiedliche Einwirkungen auf die mechanische Behandlung der Wäscheposten ausüben. Der Erfindung liegt die Aufgabe zugrunde, diese bekannte Tatsache in einer Waschmaschine in der Weise nutzbar zu machen, daß Posten aus unterschiedlichen Wäschegewebe-Arten in jeweils geeigneter Weise in ein und derselben Waschmaschine behandelt werden können.From many other publications, which are not listed here, it is known that different types of driver also have different effects on the mechanical Exercise treatment of laundry items. The invention has for its object to make this known fact usable in a washing machine in such a way that items from different types of laundry fabric can be treated in a suitable manner in one and the same washing machine.
Diese Aufgabe wird bei einer Waschmaschine der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß das Querschnittsprofil einer asymmetrischen Parabel wenigstens ähnelt. Wie anhand von die Erfindung weiterbildenden Verfahren ersichtlich ist, kann eine derartige Ausstattung der Wäschetrommel den unterschiedlichen Anforderungen der Waschprogramme in bezug auf bestimmte Textilarten und verschiedene Programmabschnitter besser entsprechen und angepaßt werden.This object is achieved according to the invention in a washing machine of the type mentioned at the outset in that the cross-sectional profile is at least similar to an asymmetrical parabola. As can be seen from the method further developing the invention, such a configuration of the laundry drum can better meet and adapt to the different requirements of the washing programs in relation to certain types of textiles and different program sections.
Bei einem Verfahren zum Benetzen von Wäsche während einer Benetzungsphase, bei der Wasser aus dem niedrigsten Bereich der Wäschetrommel von den Mitnehmern aufgenommen und über Abflußlöcher in je einer Flanke der Mitnehmer ab einer gewissen oberen Position in den Trommelinnenraum geführt wird, läßt sich in einer erfindungsgemäßen Waschmaschine die Wirkung der Benetzung wesentlich verbessern, wenn die Trommel erfindungsgemäß vorzugsweise bis ausschließlich in derjenigen Richtung betrieben wird, in der die Abflußlöcher in der vorderen Flanke angeordnet sind.In a method for wetting laundry during a wetting phase, in which water from the lowest area of the laundry drum is taken up by the drivers and guided through drain holes in one flank of the drivers from a certain upper position into the interior of the drum, can be in a washing machine according to the invention significantly improve the wetting effect if, according to the invention, the drum is preferably operated up to only in the direction in which the drainage holes are arranged in the front flank.
Eine Waschmaschine, die zur Durchführung eines derartigen Verfahrens geeignet ist, hat erfindungsgemäß Abflußlöcher in derjenigen Flanke jedes Mitnehmers, die mit dem stumpferen der beiden Winkel auf dem Trommelmantel steht. Dadurch kann die größtmögliche Wassermenge von jeden Mitnehmer bis zur höchstmöglichen Position emporgehoben werden, ehe das Wasser in den Trommelinnenraum abgegeben wird. Dies bewirkt den bestmöglichen Beregnungseffekt.According to the invention, a washing machine which is suitable for carrying out such a method has drainage holes in that flank of each driver which is on the drum shell with the blunt of the two angles. This allows the greatest possible amount of water from each driver to the highest possible position before the water is released into the drum interior. This produces the best possible irrigation effect.
Ein Verfahren zum Waschen von Wäsche in einer erfindungsgemäßen Waschmaschine kann vorteilhafterweise derart eingerichtet sein, daß die Trommel beim Waschen von unempfindlicher Wäsche (Koch-, Buntwäsche) aus der Sicht der Mitnehmerquerschnitte vorzugsweise in Richtung auf die stumpferen Flankenwinkel und beim Waschen von empfindlicher Wäsche (Wolle, Feinwäsche, Pflegeleichtes) vorzugsweise in Richtung auf die spitzeren Flankenwinkel gedreht wird.A method for washing laundry in a washing machine according to the invention can advantageously be set up in such a way that the drum when washing insensitive laundry (cottons, colored clothes) from the point of view of the driver cross-sections preferably in the direction of the obtuse flank angles and when washing sensitive laundry (wool , Delicates, Easy care) is preferably turned in the direction of the more acute flank angle.
Schließlich läßt sich auch bei einem Verfahren zum Schleudern von Wäsche in einer erfindungsgemäßen Waschmaschine die Wäsche einerseits schonender behandeln und die Bildung eines unauflösbaren Wäscheringes viel besser verhindern, wenn erfindungsgemäß die Trommel aus der Sicht der Mitnehmerquerschnitte in Richtung auf die spitzeren Flankenwinkel gedreht wird.Finally, in a method for spinning laundry in a washing machine according to the invention, the laundry can be treated more gently on the one hand and the formation of an indissoluble laundry ring can be prevented much better if, according to the invention, the drum is rotated in the direction of the more acute flank angles from the point of view of the driver cross sections.
Anhand eines in der Zeichnung dargestellten Ausführungsbeispieles ist die Erfindung nachstehend erläutert. Es zeigen
- Fig. 1
- einen schematischen Querschnitt durch eine erfindungsgemäß ausgestaltete Wäschetrommel,
- Fig. 2
- einen Querschnitt durch einen Mitnehmer gemäß Fig. 1 und
- Fig. 3
- eine perspektivische Ansicht eines solchen Mitnehmers.
- Fig. 1
- 2 shows a schematic cross section through a laundry drum designed according to the invention,
- Fig. 2
- a cross section through a driver according to FIG. 1 and
- Fig. 3
- a perspective view of such a driver.
Die Wäschetrommel 1 enthält drei am Innenkreis des Trommelmantels 3 gleichmäßig verteilte Mitnehmer 2. Ihre ungleich breiten Flanken 4 und 5 stellen die Parabel-Linie des Querschnittsprofils dar, dessen Scheitelpunkt 6 außermittig über der am Trommelmantel 3 liegenden Basis steht. Die Flanken 4 und 5 stehen demgemäß mit unterschiedlichen Winkeln auf der Basis, nämlich die breitere Flanke 4 mit dem spitzeren Winkel µ und die schmalere Flanke 5 mit dem stumpferen Winkel β.The laundry drum 1 contains three
Diese unsymmetrische Gestaltung der Mitnehmer führt dazu, daß Wäsche beim Drehen der Trommel aus der Sicht der Mitnehmerquerschnitte in Richtung auf den stumpferen Winkel β, also in Richtung A (Fig. 1), weiter emporgehoben wird als Wäsche, die beim Drehen in Richtung B auf die jeweiligen breiteren Flanken 4 der Mitnehmer 2 zur Anlage kommt. Von dort rutschen die Wäschestücke früher ab und werden daher nicht so weit emporgehoben wie bei der Drehrichtung A. Diese Zusammenhänge lassen sich bei einem erfindungsgemäßen Verfahren zum Waschen von Wäsche nutzbringend anwenden, indem beim Waschen von unempfindlicher Wäsche, also beispielsweise von Kochwäsche oder Buntwäsche, die Trommel bevorzugt in Richtung A gedreht wird. In dieser Richtung wird die Wäsche höher emporgehoben, ehe sie von dieser größeren Höhe in das Laugenbad zurückfällt. Damit wird ein größerer Betrag mechanischer Einwirkung auf die Wäscheteile eingebracht.This asymmetrical design of the driver leads to laundry being lifted further from the view of the driver cross-sections in the direction of the obtuse angle β, that is to say in direction A (FIG. 1), than laundry which is being turned on in direction B when rotating the drum the respective wider edges 4 of the
Eine derartige Bevorzugung der Drehrichtung A kann dadurch gegeben sein, daß bei Einstellung der Reversierzeiten darauf geachtet wird, daß die Drehrichtung A länger eingeschaltet ist als die Drehrichtung B. Variationen dieses Drehrichtungsverhältnisses sind geeignet, unterschiedliche Grade der Wäscheempfindlichkeit zu berücksichtigen.Such a preference for the direction of rotation A can be given by ensuring that when setting the reversing times that the direction of rotation A is switched on longer is as the direction of rotation B. Variations of this direction of rotation ratio are suitable to take into account different degrees of laundry sensitivity.
Entsprechend kann das Waschverfahren besser an empfindliche Wäschearten angepaßt werden (z.B. Wolle, Feinwäsche oder Pflegeleichtes), indem die Drehrichtung B gegenüber der Drehrichtung A größere Anteile im Reversierrhythmus enthält. Dadurch wird die Wäsche nicht so oft sehr hoch gehoben. Vielmehr wird sie meistens bei Drehrichtung B nur geringfügig emporgehoben, ehe sie wieder ins Laugenbad zurückrutscht. So wird die Wäsche mit nur geringem Mechanikeintrag beaufschlagt.Correspondingly, the washing process can be better adapted to sensitive types of laundry (e.g. wool, delicates or easy-care items) in that the direction of rotation B compared to the direction of rotation A contains larger portions in the reverse rhythm. As a result, the laundry is not lifted very often. Rather, it is mostly only slightly raised in direction of rotation B before it slides back into the caustic bath. So the laundry is loaded with only a small amount of mechanics.
Die Steilheit der Winkel µ und β wird man vorzugsweise an die Extrempunkte der Empfindlichkeits-Skala von zu behandelnden Wäschestücken anpassen, z.B. einen sehr spitzen Winkel µ für Wolle wählen, während der Winkel β für Leinenwäsche sehr steil sein kann.The steepness of the angles µ and β will preferably be adjusted to the extreme points of the sensitivity scale of items of laundry to be treated, e.g. choose a very acute angle µ for wool, while the angle β for linen can be very steep.
Desweiteren ist von Bedeutung, daß auch die Hohe h des Mitnehmer-Querschnitts die mögliche Fallhöhe im Zusammenwirken mit der Wahl der Winkel µ und β bestimmt. Eine Varianz der Werte des stumpfen Winkels β geht nicht so stark ein wie die Varianz der Höhen h, während eine Varianz der Werte des spitzen Winkels µ einen größeren Einfluß hat auf die Fallhöhe als die Höhe h des Mitnehmer-Querschnitts.It is also important that the height h of the driver cross-section determines the possible fall height in conjunction with the choice of the angles µ and β. A variance of the values of the obtuse angle β is not as important as the variance of the heights h, while a variance of the values of the acute angle µ has a greater influence on the drop height than the height h of the driver cross section.
Zur Festlegung der Mitnehmer-Parameter sind aber auch andere Programmabschnitte bei der Wäschebehandlung von Bedeutung. Vor dem eigentlichen Waschprozeß liegt in einem Programmablauf eine Benetzungsphase, bei der Wasser aus dem niedrigsten Bereich der Wäschetrommel von den Mitnehmern aufgenommen und über nicht dargestellte Löcher in den Mitnehmern ab einer gewissen oberen Position dieser Mitnehmer in den Trommelinnenraum abgegeben wird. Dabei wird die in der Trommel liegende Wäsche zusätzlich zur unmittelbaren Benetzung aus dem Sumpf auch noch von oben beregnet. Für diesen Effekt hat sich eine erheblich unterhalb der zum Waschen als besonders geeignet erwiesenen Trommeldrehzahl liegende Drehzahl als am besten zum Benetzen geeignet herausgestellt.However, other program sections in laundry treatment are also important for determining the carrier parameters. Before the actual washing process, there is a wetting phase in a program in which water is released the lowest area of the laundry drum is picked up by the drivers and is released into the drum interior via holes (not shown) in the drivers from a certain upper position. The laundry lying in the drum is irrigated from above in addition to the direct wetting from the sump. For this effect, a speed that is significantly below the drum speed that has been found to be particularly suitable for washing has been found to be the most suitable for wetting.
Aber auch die Ausstattung der Mitnehmer mit Abflußlöchern und deren Anordnung im Mitnehmer spielt für den Benetzungseffekt eine nennenswerte Rolle. Bei einer erfindungsgemäß ausgestatteten Wäschetrommel ist der Benetzungseffekt am größten, wenn die Trommel in einer Drehrichtung betrieben wird, in der die Abflußlöcher für die Beregnung der Wäsche auf der vorderen Flanke der Mitnehmer angeordnet sind. Die größtmögliche Wassermenge kann durch jeden Mitnehmer dann emporgehoben und über die Wäsche verteilt werden, wenn die Abflußlöcher an der schmalen Flanke 5 des Mitnehmers angeordnet sind und die Trommel 1 in Drehrichtung A betrieben wird.Equipping the drivers with drainage holes and arranging them in the driver also plays a significant role in the wetting effect. In a laundry drum equipped according to the invention, the wetting effect is greatest when the drum is operated in a direction of rotation in which the drainage holes for the washing of the laundry are arranged on the front flank of the drivers. The greatest possible amount of water can then be lifted up by each driver and distributed over the laundry if the drain holes are arranged on the
Für aus Kunststoff gefertigte Mitnehmer ist möglicherweise das Entfernen aus dem Werkzeug einfacher, wenn die Abflußlöcher in der breiteren Flanke 4 des Mitnehmers 2 vorgesehen werden. Bei derartigen Mitnehmern ist die Drehrichtung B für die Beregnung der Wäsche am effektivsten. Es ist dann zwar die Höhe, aus der das in den Mitnehmern hochgetragene Wasser bereits in den Innenraum abgegeben wird, geringer als bei der zuvor genannten Kombination von Abflußlöchern in der schmalen Flanke 5 mit der Drehrichtung A. Aber der Beregnungseffekt ist wegen der größeren vom Mitnehmer mitführbaren Wassermenge immer noch besser als beim Stand der Technik.For drivers made of plastic, removal from the tool may be easier if the drain holes are provided in the wider flank 4 of the
Auch beim Schleudern kommt die erfindungsgemäße Ausstattung der Wäschetrommel der schonenden Behandlung von Wäsche entgegen. Wenn die Wäschetrommel beim Schleudern in Drehrichtung B bewegt wird, verteilt sich die Wäsche am Trommelumfang so, daß Teile der Wäsche auf der breiteren Fläche der Flanke 4 der Mitnehmer 2 aufliegen und dort schließlich angepreßt werden. Der stumpfe Winkel zwischen der außerhalb des Mitnehmers liegenden Trommelinnenfläche und der Außenfläche der Flanke 4 des Mitnehmers als Supplementwinkel zum Winkel µ sorgt dafür, daß die Wäsche sich nahezu ohne Knittereinprägung an die Flächen anlegt. Dies ist insb. in Wäschebehandlungsprogrammen von großer Bedeutung, bei denen im Spülabschnitt und im Endschleuderprogramm Schleuderphasen mit zum Teil höheren Schleuderdrehzahlen (über 800 Upm) angewendet werden.Even when spinning, the equipment of the laundry drum according to the invention accommodates the gentle treatment of laundry. If the laundry drum is moved in the direction of rotation B during the spin cycle, the laundry is distributed around the drum circumference in such a way that parts of the laundry rest on the wider surface of the flank 4 of the
Auch bilden sich beim Schleudern üblicherweise entstehende Wäscheringe entlang des Trommelmantels nicht mehr so stabil aus, weil einerseits die Knittereinprägung an den Mitnehmern erheblich geringer ist und andererseits die Wäsche von der oberen Scheitellinie der Mitnehmer aus über der steiler stehenden Flanke 5 weitgehend hohl liegt, d.h. am Trommelmantel nicht unmittelbar anliegt.Also, washing rings that usually occur during spinning no longer form so stably along the drum jacket, because on the one hand the crease impression on the drivers is considerably less and on the other hand the laundry is largely hollow from the upper apex line of the drivers above the
Insgesamt ergibt sich eine Reihe von Vorteilen durch die erfindungsgemäße Ausstattung der Wäschetrommel und deren Betriebsweise. Durch Variation von Programmparametern sind nunmehr erheblich mehr Varianten von Mechanikeinträgen in die Wäsche möglich, so daß in Abhängigkeit von verschiedenen Textilarten und/oder verschiedenen Programmabschnitten erheblich feinfühliger zwischen den unteren und oberen Grenzen "sanft" und "kräftig" für den Mechanikeintrag bzw. zwischen einer erhöhten oder gewollt verminderten Schöpfwirkung ausgewählt werden kann. Eine gezieltere und feiner gestufte Variation von Betriebsweisen hat u.a. auch Einfluß auf Reinigungs- und Spülergebnisse sowie auf Schrumpfungen und Knitterbildungen. Sowohl beim Benetzungsabschnitt wie auch beim Wasch-Programmabschnitt kann es für die Behandlung der Wäsche von vorteilhafter Wirkung sein, wenn die Lauge gezielt stärker oder schwächer von oben über die Wäsche verteilt wird.Overall, a number of advantages result from the equipment of the laundry drum according to the invention and its mode of operation. By varying program parameters, considerably more variants of mechanical entries in the laundry are now possible, so that depending on different Textile types and / or different program sections can be selected much more sensitively between the lower and upper limits "gentle" and "strong" for the mechanical input or between an increased or intentionally reduced scooping effect. A more targeted and finely graded variation of operating modes also influences cleaning and rinsing results as well as shrinkage and creasing. Both in the wetting section and in the washing program section, it can be advantageous for the treatment of the laundry if the alkali is specifically distributed more or less over the laundry from above.
Gegenüber dem Stand der Technik, bei dem die Mitnehmer weitestgehend symmetrisch aufgebaut sind und bei dem das gleichmäßige Heben und Fallen der Wäsche zu ihrer Verknäuelung beiträgt sowie ein Durchmischen der Wäsche mit daraus folgender ungleichmäßiger Reinigungswirkung verhindert, bewirken die erfindungsgemäßen Maßnahmen eine bessere Durchmischung der Wäsche ohne Verknäuelungen und mit Verbesserung der Reinigungsergebnisse.Compared to the prior art, in which the drivers are constructed largely symmetrically and in which the uniform lifting and falling of the laundry contributes to its entanglement and prevents mixing of the laundry with the consequent uneven cleaning effect, the measures according to the invention bring about a better mixing of the laundry without Tangles and with improvement of cleaning results.
Claims (5)
- Washing machine with an at least nearly horizontally borne laundry drum, which for laundering is filled at least partially with lye and laundry and is driven at a rotational speed, at which the laundry does not lay itself against the drum casing, and with entraining members arranged at the drum casing for raising the laundry out of the lye bath to a height, from which it drops back again into the lye bath, wherein the entraining members have an asymmetric cross-sectional profile and their flanks are at unequal angles to the drum casing, and which is also set up for spinning, characterised thereby, that the cross-sectional profile is at least similar to an asymmetric parabola.
- Washing machine according to claim 1, characterised thereby, that the outflow holes are arranged in a flank (5), which is at an obtuse angle (β) to the drum casing (3).
- Method for the setting of laundry during a wetting phase, during which water is taken up out of the lowest region of the laundy drum by the entraining members and guided into the interior space of the drum from above a certain upper position by way of outflow holes each in a respective flank of the entraining members, in a washing machine according to claim 1, characterised thereby, that the drum (1) preferably to exclusively is driven in that direction of rotation, in which the outflow holes are arranged in the leading flank (5 or 4).
- Method for the washing of laundry in a washing machine according to claim 1, characterised thereby, that the drum (1) is rotated during the washing of insensitive laundry preferably in the direction towards the more obtuse flank angles (β) as seen from the cross-section of the entraining members and during the washing of sensitive laundry in the direction towards the more acute flank angles (µ).
- Method for the spinning of laundry in a washing machine according to claim 1, characterised thereby, that the drum (1) is rotated in the direction towards the more acute flank angles (µ) as seen from the cross-sections of the entraining members.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4240230 | 1992-11-30 | ||
| DE4240230A DE4240230A1 (en) | 1992-11-30 | 1992-11-30 | Washing machine and method for operating a washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0600188A1 EP0600188A1 (en) | 1994-06-08 |
| EP0600188B1 true EP0600188B1 (en) | 1996-12-18 |
Family
ID=6474005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93116189A Expired - Lifetime EP0600188B1 (en) | 1992-11-30 | 1993-10-06 | Washing machine and process for operating a washing machine |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0600188B1 (en) |
| KR (2) | KR940011716A (en) |
| AT (1) | ATE146535T1 (en) |
| DE (2) | DE4240230A1 (en) |
| ES (1) | ES2098620T3 (en) |
| SI (1) | SI9300620A (en) |
| TR (1) | TR28521A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19906723B4 (en) * | 1999-02-18 | 2006-11-16 | AEG Hausgeräte GmbH | Method for washing laundry in a program-controlled washing machine |
| DE102009002845A1 (en) | 2009-05-06 | 2010-11-11 | BSH Bosch und Siemens Hausgeräte GmbH | Method for detecting e.g. aqueous liquid supplying condition, in washing machine, involves rotating drum in left direction with rotation speed, and evaluating two medium hydrostatic pressures for detecting incorrect operating condition |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19600354A1 (en) * | 1995-01-11 | 1996-07-18 | Miele & Cie | Washing machine has perforated drum |
| US6163912A (en) * | 1997-09-22 | 2000-12-26 | Matsushita Electric Industrial Co., Ltd. | Washing machine |
| IT1302446B1 (en) * | 1998-10-30 | 2000-09-05 | Erretre Srl | FOLLONAGE, RECONCIABLE AND DYEING BOTTLE. |
| DE29822990U1 (en) * | 1998-12-30 | 1999-09-09 | Boewe Garment Care Systems Gmb | Drum of a cleaning machine |
| DE19860529A1 (en) * | 1998-12-30 | 2000-07-06 | Boewe Garment Care Systems Gmb | Cleaning, post-treatment and drying of textiles, leather and furs uses cleaning machine with drum with asymmetrical ribs |
| DE10136519B4 (en) * | 2001-07-26 | 2004-09-02 | BSH Bosch und Siemens Hausgeräte GmbH | Method of operating a programmable washing machine and washing machine suitable therefor |
| AU2004203379B2 (en) * | 2003-07-28 | 2006-10-12 | Lg Electronics Inc. | Washing machine |
| DE102008029911A1 (en) | 2008-06-24 | 2009-12-31 | BSH Bosch und Siemens Hausgeräte GmbH | Drum for washing machines and dryers comprises a flat catch side having a surface which is partly provided with a material which is gentle to laundry |
| US8186227B2 (en) | 2009-08-10 | 2012-05-29 | Whirlpool Corporation | Method and apparatus for determining load amount in a laundry treating appliance |
| DE102011084011A1 (en) * | 2011-10-05 | 2013-04-11 | BSH Bosch und Siemens Hausgeräte GmbH | washing drum |
| DE102013000305B4 (en) | 2012-02-21 | 2023-05-11 | BSH Hausgeräte GmbH | Laundry drum arrangement with drivers |
| CN110258077A (en) * | 2018-03-12 | 2019-09-20 | 青岛海尔滚筒洗衣机有限公司 | A kind of inner cylinder for drum washing machine, roller washing machine and washing methods |
| JP7285393B2 (en) * | 2018-10-23 | 2023-06-02 | パナソニックＩｐマネジメント株式会社 | drum washing machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2214131A (en) | 1937-05-15 | 1940-09-10 | Bendix Home Appliances Inc | Cylinder construction for washing machines or the like |
| US2771766A (en) * | 1951-08-23 | 1956-11-27 | Westinghouse Electric Corp | Washing apparatus |
| US3997292A (en) * | 1974-11-18 | 1976-12-14 | General Electric Company | Laundry machine |
-
1992
- 1992-11-30 DE DE4240230A patent/DE4240230A1/en not_active Withdrawn
-
1993
- 1993-10-06 DE DE59304818T patent/DE59304818D1/en not_active Expired - Lifetime
- 1993-10-06 AT AT93116189T patent/ATE146535T1/en not_active IP Right Cessation
- 1993-10-06 ES ES93116189T patent/ES2098620T3/en not_active Expired - Lifetime
- 1993-10-06 EP EP93116189A patent/EP0600188B1/en not_active Expired - Lifetime
- 1993-10-28 KR KR1019930022547A patent/KR940011716A/en active Search and Examination
- 1993-11-18 TR TR01079/93A patent/TR28521A/en unknown
- 1993-11-30 SI SI9300620A patent/SI9300620A/en not_active IP Right Cessation
-
2003
- 2003-08-26 KR KR1020030058933A patent/KR100411755B1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19906723B4 (en) * | 1999-02-18 | 2006-11-16 | AEG Hausgeräte GmbH | Method for washing laundry in a program-controlled washing machine |
| DE19906723C5 (en) * | 1999-02-18 | 2008-07-31 | AEG Hausgeräte GmbH | Method for washing laundry in a program-controlled washing machine |
| DE102009002845A1 (en) | 2009-05-06 | 2010-11-11 | BSH Bosch und Siemens Hausgeräte GmbH | Method for detecting e.g. aqueous liquid supplying condition, in washing machine, involves rotating drum in left direction with rotation speed, and evaluating two medium hydrostatic pressures for detecting incorrect operating condition |
Also Published As
| Publication number | Publication date |
|---|---|
| TR28521A (en) | 1996-09-30 |
| DE4240230A1 (en) | 1994-06-01 |
| KR100411755B1 (en) | 2003-12-18 |
| KR940011716A (en) | 1994-06-21 |
| ATE146535T1 (en) | 1997-01-15 |
| EP0600188A1 (en) | 1994-06-08 |
| ES2098620T3 (en) | 1997-05-01 |
| DE59304818D1 (en) | 1997-01-30 |
| SI9300620A (en) | 1994-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0600188B1 (en) | Washing machine and process for operating a washing machine | |
| DE3738388C2 (en) | Cuff for a washing machine | |
| EP0318761B1 (en) | Method for using a drum washing machine and machine to perform this method | |
| DE19905534B4 (en) | Drum washing machine with a laundry drum whose drum shell has a structured surface | |
| EP1417369B1 (en) | Method for operating a programmable washing machine and a washing machine suited therefor | |
| DE10227957A1 (en) | Horizontal axis washing machine clothes drum has two part lifters axially separated at slightly different radial positions to increase tumbling effect | |
| EP0083302A1 (en) | Drum for washing machines and/or centrifugal dryers and its use in washing machines or centrifugal dryers | |
| DE2016357A1 (en) | Household device for washing and drying laundry, pieces of clothing and the like | |
| DE2915092A1 (en) | Drum washing machine with double action - has additional radially projecting details sufficiently high only to scrub linen | |
| EP1871941B1 (en) | Method for washing shrinkable textiles and a washing machine for carrying out said method | |
| DE3501760A1 (en) | Method and apparatus for washing laundry in a drum-type washing machine | |
| DE3506948C2 (en) | Process for removing lint from a textile washing machine and textile washing machine | |
| EP0304391B1 (en) | Drum washing machine | |
| DE3631724C2 (en) | ||
| DE3825377A1 (en) | WASHING DRUM | |
| EP1846606B1 (en) | Program controlled washing machine | |
| DE3609464C2 (en) | ||
| DE3633441A1 (en) | Process and apparatus for the wet washing of articles of clothing | |
| DE3738049A1 (en) | Front-loading washing machine | |
| DE4012115A1 (en) | Spinning washing in programme-controlled household washing machine - involves measuring duration of pumping between two water levels in washing soln. container | |
| DE7422195U (en) | Laundry washing machine | |
| AT120683B (en) | Washing and drying machine. | |
| DE102020108734A1 (en) | Procedure and washing machine | |
| DE2351179C3 (en) | Washer-dryer and spin-dryer | |
| DE2237412A1 (en) | METHOD OF DRYING SENSITIVE FABRICS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE ES FR GB IT SE |
|
| 17P | Request for examination filed |
Effective date: 19941111 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| 17Q | First examination report despatched |
Effective date: 19960305 |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT DE ES FR GB IT SE |
|
| REF | Corresponds to: |
Ref document number: 146535 Country of ref document: AT Date of ref document: 19970115 Kind code of ref document: T |
|
| ET | Fr: translation filed | ||
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19961231 |
|
| REF | Corresponds to: |
Ref document number: 59304818 Country of ref document: DE Date of ref document: 19970130 |
|
| ITF | It: translation for a ep patent filed |
Owner name: 0403;07MIFSTUDIO JAUMANN |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2098620 Country of ref document: ES Kind code of ref document: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20081027 Year of fee payment: 16 Ref country code: AT Payment date: 20081023 Year of fee payment: 16 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20081027 Year of fee payment: 16 |
|
| EUG | Se: european patent has lapsed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091006 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20110310 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091007 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110309 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091007 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20121113 Year of fee payment: 20 Ref country code: DE Payment date: 20121031 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20121023 Year of fee payment: 20 Ref country code: GB Payment date: 20121023 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59304818 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20131005 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20131008 Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20131005 |