EP0159202B1 - Waschmaschine mit automatischer Ermittlung von Belastung und Wäscheart - Google Patents

Waschmaschine mit automatischer Ermittlung von Belastung und Wäscheart Download PDF

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Publication number
EP0159202B1
EP0159202B1 EP85400149A EP85400149A EP0159202B1 EP 0159202 B1 EP0159202 B1 EP 0159202B1 EP 85400149 A EP85400149 A EP 85400149A EP 85400149 A EP85400149 A EP 85400149A EP 0159202 B1 EP0159202 B1 EP 0159202B1
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EP
European Patent Office
Prior art keywords
drum
water
laundry
washing machine
machine according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP85400149A
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English (en)
French (fr)
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EP0159202A1 (de
Inventor
Laurent Didier
Jean-Claude Geay
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Esswein SA
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Esswein SA
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Priority to AT85400149T priority Critical patent/ATE84332T1/de
Publication of EP0159202A1 publication Critical patent/EP0159202A1/de
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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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/04—Quantity, e.g. weight or variation of weight
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/06—Type or material
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/16—Washing liquid temperature
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • D06F2103/46—Current or voltage of the motor driving the drum
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/02—Water supply
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/10—Temperature of washing liquids; Heating means therefor
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed

Definitions

  • the invention relates to a washing machine.
  • the operating program of a washing machine depends on a certain number of parameters which are: the type of laundry, the degree of soiling, the desired temperature for washing and possibly the quantity of laundry.
  • An automatic washing machine therefore has a programmer which, on the basis of this data displayed by the user, determines a program, that is to say: a washing duration and / or a stirring energy (number of rotations of the drum containing the laundry), possibly a temperature for heating the washing water (if it was not displayed directly by the user), if applicable - if a data depending on the quantity of laundry has been entered - the volume of washing water, a number of rinses, and a speed of rotation of the drum to perform the spin.
  • the washing machine is characterized in that, in order to determine the load of laundry (percentage of the volume of the drum which is occupied by the laundry) in the drum, it comprises, in order to measure the moment of inertia of the laundry relative to the axis of rotation of the drum, means for determining the driving torque of the drum at constant acceleration and means for measuring the driving torque of the drum during this acceleration.
  • the drum filled with dry linen is rotated at constant known acceleration and the engine torque is measured. (driving the drum) which is proportional, to within a constant, at the moment of inertia.
  • the laundry load is thus determined very simply.
  • this measurement of the load of laundry is used to automatically determine the type of laundry introduced into the machine and thus to select the washing program.
  • a means is provided for measuring the amount of water absorbed by the dry or practically dry laundry.
  • the quantities of water absorbed by dry laundry for the same mass or for the same machine load vary from one type of laundry to another.
  • linen made of synthetic fabric absorbs approximately one liter of water per kilogram, cotton linen two liters per kilogram and terry linen four liters per kilogram.
  • a drum of a given type contains, when fully loaded, either five kilograms of cotton linen, or four kilograms of terry cloth, or three kilograms of synthetic cloth linen ; in this case for the full load of this drum the volumes of water absorbed by the dry linen are: ten liters for cotton linen, sixteen liters for terry linen and three liters for synthetic fabric linen.
  • the signal representing the load of laundry and possibly the type of laundry is used to impose constraints on the machine's operating program.
  • the indication of the size representing the load of linen, combined with the type of linen, linen provides an optimum quantity - from an economic point of view - of water, to be introduced into the machine tank.
  • the program preferably implanted in a microprocessor, will impose that the washing temperature cannot exceed 60 ° C.
  • the signal representing the quantity of water absorbed will have a value between two characteristic values.
  • the program selected will be the one corresponding to the characteristic value closest to the actual value of the signal.
  • the users being until now accustomed to wash together cotton linen and terry linen, it is preferable not to force them to carry out a sorting between these two types of linen. This is why the signal representing the amount of water absorbed by the linen makes a selection from only two possibilities: one for cotton and / or terry linen (cotton type) and the other for fabric linen. synthetic (synthetic type).
  • the procedure is advantageously as follows:
  • the drum filled with laundry being stationary, water is introduced into the washing machine's tank to a level slightly above (1.5 cm for example) from the bottom of the drum and the opening time is measured of the solenoid valve necessary to perform this filling.
  • This time is inversely proportional to the flow rate of the valve; in other words the duration of opening of the solenoid valve until said level is reached represents the flow rate of the latter. Since it is only a small fraction of the volume of the drum that is immersed in water, only a negligible fraction of the laundry is wet.
  • the drum - which, to minimize the amount of water absorbed by the laundry, was previously stationary - is rotated at a speed of the order of 30 revolutions per minute, lower than the speed provided for the washing ; the periphery of the laundry contained in the drum thus bathes in water and this laundry absorbs water, which causes a drop in the level in the tank.
  • the solenoid valve is then opened again so that the free surface of the water in the tank returns to the predetermined level.
  • the drum is again rotated so that the laundry continues to absorb water.
  • the solenoid valve is open at each stage so that the free surface of the water in the tank always returns to said predetermined level.
  • the linen After a certain number of operations of this type, generally of the order of ten, the linen is completely soaked with water and the level remains constant in the tank.
  • the quantity of water absorbed by the laundry is equal to the product of the flow rate of the solenoid valve by the sum of the opening times of this solenoid valve after the first filling and until the level is stabilized in the tank.
  • a thermistor fixed to the internal face of a wall of the tank and which is supplied with a sufficiently high voltage so that it is heated by the Joule effect.
  • this thermistor bathes in water its temperature decreases and therefore its resistance changes. It is this variation in resistance that is used to detect the arrival of water.
  • this thermistor can be used to measure the temperature of the wash water. It is preferable that the thermistor is placed in a housing such that it is protected against drops of water which could reach it during filling, before the predetermined level is reached.
  • the washing machine is of the tub type 10 (FIGS. 1, 2, 3 and 3a), of generally cylindrical shape limited by vertical side walls 11, inside which a drum 12 also turns d horizontal axis 20, the cylindrical peripheral wall 13 and / or the vertical side walls 14 are perforated to allow this drum 12, which contains the linen 14 a , to have the water 15 introduced into the tank through a solenoid valve 16.
  • This washing machine is controlled by a microprocessor (not shown) which acts by means of interface circuits (also not shown) on the solenoid valve 16, on the motor - of the universal type in the example - for driving the drum 12, on the supply of the resistor 17 for heating the water disposed at the bottom of the tank 10 and possibly on means (not shown) for introducing detergents, bleaches, softeners, etc.
  • a microprocessor acts by means of interface circuits (also not shown) on the solenoid valve 16, on the motor - of the universal type in the example - for driving the drum 12, on the supply of the resistor 17 for heating the water disposed at the bottom of the tank 10 and possibly on means (not shown) for introducing detergents, bleaches, softeners, etc.
  • the invention makes it possible to optimize, in an extremely simple manner, the operating program of the machine, that is to say to adapt it as best as possible to the quantity and to the type of linen introduced into the drum 12 in order to obtain the maximum washing efficiency and this while minimizing the amount of water used.
  • user intervention is reduced to a minimum.
  • the machine's operating program takes account of data representing the load or mass of laundry introduced into the drum and the type of laundry (synthetic, sponge or cotton).
  • the parameter representing the quantity of linen introduced into the drum is, in the example, the moment of inertia L of this linen with respect to the axis 20 of rotation of said drum 12. It is in fact understood that for a given type of laundry having a specific density, the volume occupied by this laundry in the drum varies with the quantity and, therefore, its moment of inertia increasing with the volume, the greater the quantity of laundry, the greater the moment of inertia. For the same volume, for example the drum 12 completely filled, the density is different depending on the type of laundry; it follows that the moment of inertia is different depending on the type of laundry. Thus the same drum can be filled with 4 kilograms of terry cloth, 5 kilograms of cotton linen and 3 kilograms of synthetic linen.
  • the moment of inertia L of the laundry only depends on the intensity of the electric current passing through the universal motor.
  • the drum before filling the tank with water, the drum is forced into a program which is represented by the diagram in FIG. 4 which represents the variations, as a function of time t, of the speed V of rotation of the drum. Between the instants t2 and t2, the drum is made to rotate at a slightly increasing speed so that at time t2 it reaches a speed of rotation of the order of 100 revolutions per minute.
  • This first phase aims to distribute the laundry evenly in the drum in order to avoid unbalance, which is dangerous for the machine.
  • the rotation of the drum is accelerated, at a constant and determined value.
  • the drive torque has a significantly higher value. It follows of course that the effective intensity I v34 ( Figure 5) of the current absorbed by the motor is higher. Then, between instants t4 and t5 the speed of drum rotation is kept constant at a value of the order of 500 to 800 revolutions per minute. In this last phase, the drive torque is only equal to the torque necessary to overcome friction.
  • I34 is the effective intensity of the electric current passing through the drum drive motor between times t inst and t4 and C f 34 is the friction torque, also between times t3 and t4.
  • K, I o and acceleration from dt are constants imposed during the construction of the machine; they therefore feel known.
  • I34 is measured for example by determining the voltage across a resistor in series with the motor.
  • C f 34 is not directly measurable; in the present case it is estimated that C f 34 is the arithmetic mean between the friction couple C f 23 , between the instants t2 and t3, and the friction couple C f 45 between the instants t4 and t5.
  • C f 23 and C f 45 are easily measurable by the intensities I23 and I45 of the currents flowing through the universal motor between the times t respectivement and t3 and t4 and t5 respectively.
  • this intensity I34 are represented as a function of the mass.
  • Curve E in solid lines corresponds to terry cloth while curve D in lines interrupted corresponds to cotton or synthetic linen.
  • I M 34 corresponds to three kilograms of terry cloth or four kilograms of cotton or synthetic linen.
  • the curve of variation of the intensity I34 as a function of the load of linen (that is to say the percentage of volume of the drum occupied by the linen) is the same curve F independent of the type of linen. It can be seen that for the intensity I M 34 corresponding to three kilos of terry cloth or four kilos of cotton or synthetic linen, this volume represents 70% of that of the drum.
  • the intensity I34 cannot represent the type of linen introduced into the drum. It is only the amount of water absorbed by the laundry that, in combination with the load, gives an indication of the type of laundry. At full load (100%) the terry cloth absorbs 16 liters of water, the cotton cloth 10 liters of water and the synthetic cloth 3 liters of water. It is therefore sufficient to make the ratio between the quantity of water absorbed and the intensity I3 4 to obtain a precise indication of the type of laundry.
  • the program contained in the microprocessor provided for controlling the machine can thus choose the operating parameters of the various organs to adapt the program to the type of laundry: engine timing, number of rinses, washing temperature, spin speed and also amount of water used for each wash and each rinse.
  • two types of program are provided, one which corresponds to cotton linen or terry linen and the other to synthetic linen, which makes it possible to mix terry linen with cotton linen.
  • the side wall II of the tank 10 has, opposite the bottom 30 of the drum 12 (FIG. 3), an opening 31 sealed through, by means of a seal 32, by a bowl cylindrical 33 open inside the tank and closed by a bottom 34 in its part external to the tank.
  • This last part has a cylindrical sleeve 35 with a horizontal axis parallel to the vertical wall 11, and therefore perpendicular to the axis of the cylindrical bowl 33, which tightly connects two diametrically opposite openings 36 and 37 (FIG. 3a) of the cylindrical wall of the bowl.
  • the external surface of the sleeve 35 can bathe in water while the interior of this sleeve is isolated from water.
  • a thermistor 38 connected to a power source (not shown) having a sufficient voltage to heat this thermistor by Joule effect.
  • the thickness of the wall of the sleeve 35 is small so that the thermistor 38 can be in good thermal contact with the water 15.
  • the temperature of the thermistor 38 is higher than the ambient temperature and the temperature of the water.
  • the temperature of the thermistor 38 drops and its resistance varies; this variation in resistance is used to detect the arrival of water at level 40 where the sleeve 35 is located, that is to say at a low height h, for example of the order of 1.5 centimeters, above the bottom 30 of the drum.
  • a low height h for example of the order of 1.5 centimeters, above the bottom 30 of the drum.
  • the diameter of the drum being between 40 and 50 cm, the height h represents approximately 3% of the diameter of the drum.
  • a time t elapses which is measured for example using the microprocessor mentioned above.
  • the drum 12 is stationary.
  • the linen 14 practically does not absorb water because of the low height of the level 40 above the bottom 30.
  • the drum is rotated, preferably at a speed of 30 rpm - lower than the speed of 50 rpm for washing or rinsing - so that the entire periphery of the laundry is bathed in water.
  • This cloth absorbs water and the free surface of the water 15 descends below level 40 to level 41; this state is shown in FIG. 2.
  • the measurement of the durations t ' is interrupted when the free surface of the water remains at level 40; for this purpose, the microprocessor is programmed to consider the filling completed, the laundry being completely soaked with water, when the free surface remains at level 40 about two minutes after the last closing of the solenoid valve 16.
  • V o is the volume of water contained in the tank when the free surface is at level 40
  • ⁇ t ' represents the sum of the durations t'.
  • the thermistor is distant from the trajectory of the water drops coming from the impact of the water leaving the solenoid valve against the water already filling the tank. In addition, it is protected against turbulence.
  • the sleeve 35 contributes to this result.
  • the measurement of the moment of inertia of the dry laundry is carried out prior to the measurement of the durations t and t '.
  • a bimetallic strip is used to control the opening and closing of the solenoid valve 16.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Claims (15)

  1. Waschmaschine mit automatischer Ermittlung der Wäscheladung in der Trommel, dadurch gekennzeichnet, daß sie zum Ermitteln dieser Ladung ein Mittel zum Ermitteln des Trägheitsmoments der Wäsche bezüglich der Rotationsachse (20) dieser Trommel enthält, das ein Mittel zum Antreiben der Trommel mit einer konstanten Beschleunigung (t₃, t₄) und ein Mittel zum Messen des Antriebsdrehmoments der Trommel während dieser Beschleunigung enthält.
  2. Waschmaschine nach Anspruch 1, dadurch gekennzeichnet, daß das Mittel zum Antreiben der Trommel mit konstanter Beschleunigung vor dem Einfüllen von Wasser wirksam ist.
  3. Waschmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die von einem Allstrommotor angetriebene Trommel zum Messen des Antriebsdrehmoments ein Mittel zum Messen der Stärke des elektrischen Stroms enthält, der durch den Motor fließt.
  4. Waschmaschine nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß sie mit einem Mittel ausgestattet ist, um die Trommel in Rotation mit gering steigender Geschwindigkeit zu versetzen, bevor sie mit der konstanten Beschleunigung rotiert, um die Wäsche in dieser Trommel gleichmäßig zu verteilen.
  5. Waschmaschine nach einem der vorhergehenden Ansprüche 1 bis 4, dadurch gekennzeichnet, daß sie ausgestattet ist mit einem Mittel, um die Trommel in Rotation mit konstanter Geschwindigkeit (V₂₃) vor ihrer Rotation mit konstanter Beschleunigung zu versetzen, wobei diese Trommel auch mit einer anderen konstanten Geschwindigkeit (V₄₅) nach der Rotation mit konstanter Beschleunigung angetrieben wird, wobei die Antriebsdrehmomente im Verlauf der beiden Rotationen mit konstanter Geschwindigkeit ermittelt werden, und einem Berechnungsmittel, das vorgesehen ist, um einen Mittelwert zwischen diesen zwei Drehmomenten zu bilden, wobei dieser Mittelwert als Reibungsdrehmoment für die Berechnung des Antriebsdrehmoments betrachtet wird.
  6. Waschmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie für das automatische Ermitteln des in die Trommel eingeführten Wäschetyps sowie für das Auswählen des Waschprogramms außerdem mit einem weiteren Mittel ausgestattet ist, um die von der trockenen oder im wesentlichen trockenen Wäsche (14a) absorbierte Wassermenge zu messen, wobei das Waschprogramm vom Verhältnis zwischen der absorbierten Wassermenge und der Ladung abhängt.
  7. Waschmaschine nach Anspruch 6, dadurch gekennzeichnet, daß sie, da sie vom Typ mit rotierender Trommel (12) im Inneren einer Wanne (10) ist, zum Messen der von der trockenen Wäsche absorbierten Wassermenge ausgestattet ist mit einem Mittel, um die Zufuhr von Wasser zu unterbrechen, wenn die freie Oberfläche des letzteren ein vorbestimmtes Niveau (40) erreicht, das wenig oberhalb des Bodens (30) der Trommel liegt, und einem Mittel, um die Öffnungszeit des Elektroventils (16) der Wasserzufuhr zu messen, damit die freie Oberfläche auf dieses vorbestimmte Niveau zurückkehrt und die Wäsche von Wasser durchnässt ist.
  8. Waschmaschine nach Anspruch 7, dadurch gekennzeichnet, daß sie ausgestattet ist mit einem Mittel, um die Öffnungszeit des Elektroventils (16) zu messen, damit die freie Oberfläche des Wassers in der Wanne das vorbestimmte Niveau (40) vor dem Feuchtwerden dar Wäsche erreicht, um den Durchsatz dieses Elektroventils zu ermitteln.
  9. Waschmaschine nach dem Anspruch 7 oder 8, dadurch gekennzeichnet, daß sie ein temperaturempfindliches Element (38) wie einen Thermistor enthält, der mit einer Wand (11) der Wanne (10) der Waschmaschine fest verbunden ist, wobei dieses Element so erwärmt wird, daß es einerseits eine Temperaturerniedrigung erleidet, wenn es vom Wasser erreicht wird, um das stoppen des Einfüllens zu veranlassen, und andererseits eine Temperaturerhöhung erleidet, wenn das Niveau des Wassers sinkt, um erneut ein Einfüllen zu veranlassen.
  10. Waschmaschine nach dem Anspruch 9, dadurch gekennzeichnet, daß das temperaturempfindliche Element (38) ein Thermistor ist, der auch zum Messen der Wassertemperatur während des Waschvorgangs benutzt wird.
  11. Waschmaschine nach dem Anspruch 9 oder 10, dadurch gekennzeichnet, daß das temperaturampfindliche Element (38) in einer geringen Höhe (h) oberhalb des Bodens (30) der Trommel (12) der Waschmaschine angeordnet ist.
  12. Waschmaschine nach einem der vorhergehenden Ansprüche 9 bis 11, dadurch gekennzeichnet, daß das temperaturempfindliche Element (38) in einer Umhüllung (33, 35) angeordnet ist, die es gegen Wasserspritzer während des Einfüllens schützt.
  13. Waschmaschine nach einem dar vorhergehenden Ansprüche 6 bis 12, dadurch gekennzeichnet, daß das Mittel zum Messen der von der trockenen Wäsche absorbierten Wassermenge ein ternäres Signal liefert, das anzeigt, daS die Wäsche von einem der drei folgenden Typen ist: Frottierwäsche, Baumwollwäsche, Kunstfaserwäsche.
  14. Waschmaschine nach einem der Ansprüche 6 bis 12, dadurch gekennzeichnet, daß die Mittel zum Messen der von der trockenen Wäsche absorbierten Wassermenge ein binäres Signal liefert, das anzeigt, daß die Wäsche entweder vom Kunstfasertyp oder vom Baumwoll- und/oder Frottiertyp ist.
  15. Waschmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Mittel zum Ermitteln des Trägheitsmoments einen Mikroprozessor enthält.
EP85400149A 1984-02-17 1985-01-29 Waschmaschine mit automatischer Ermittlung von Belastung und Wäscheart Expired - Lifetime EP0159202B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85400149T ATE84332T1 (de) 1984-02-17 1985-01-29 Waschmaschine mit automatischer ermittlung von belastung und waescheart.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8402437 1984-02-17
FR8402437A FR2559796B1 (fr) 1984-02-17 1984-02-17 Lave-linge a determination automatique du type de linge introduit dans cette machine

Publications (2)

Publication Number Publication Date
EP0159202A1 EP0159202A1 (de) 1985-10-23
EP0159202B1 true EP0159202B1 (de) 1993-01-07

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EP (1) EP0159202B1 (de)
AT (1) ATE84332T1 (de)
FR (1) FR2559796B1 (de)

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IT1256270B (it) * 1991-10-11 1995-11-29 Zanussi Elettrodomestici Procedimento di misurazione del peso della biancheria per macchina lavatrice di biancheria.
IT1267603B1 (it) * 1994-12-13 1997-02-07 Zanussi Elettrodomestici Lavabiancheria con dispositivi perfezionati per la determinazione del tipo di tessuto
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EP0159202A1 (de) 1985-10-23
ATE84332T1 (de) 1993-01-15
FR2559796A1 (fr) 1985-08-23
FR2559796B1 (fr) 1986-11-21

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