EP0369933B1 - Washing method for a programmed drum washing machine - Google Patents
Washing method for a programmed drum washing machine Download PDFInfo
- Publication number
- EP0369933B1 EP0369933B1 EP89710072A EP89710072A EP0369933B1 EP 0369933 B1 EP0369933 B1 EP 0369933B1 EP 89710072 A EP89710072 A EP 89710072A EP 89710072 A EP89710072 A EP 89710072A EP 0369933 B1 EP0369933 B1 EP 0369933B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- speed
- wash
- washing
- programme
- washing machine
- 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
-
- 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
- D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
- D06F35/005—Methods for washing, rinsing or spin-drying
- D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only
Definitions
- the invention relates to a washing method for a program-controlled drum washing machine with control means for the speed adjustment of the drive motor and a laundry drum rotatably mounted in a tub, which has at least one drum rib in its interior, the drum rib being formed with water outlet openings and water inlet openings, such that the drum rib an effective scooping effect occurs in both directions of rotation of the drum during washing operation and that cycles of higher and lower drum speeds can be set during the washing cycle.
- the specified washing process is intended on the one hand to achieve thorough mixing of the laundry in the higher speed range (mechanics) and on the other hand to intensively moisten or flood the item of laundry and at the same time to save energy and water.
- DE-OS 37 12 118 describes a drum washing machine with drum ribs designed in a manner known per se as scoops. These scoops or drum ribs are intended to support the moistening of the laundry by taking wash liquor with them at a lower speed at the beginning of the wash cycle and letting them trickle onto the laundry from above.
- the invention is therefore based on the object of designing a washing process for a program-controlled drum washing machine in such a way that the washing action and the utilization of the detergents are improved and at the same time the process is energy and water-saving.
- This object is achieved by the features of claim 1, characterized in that there is a constant change of higher and lower washing speed during the entire wash cycle
- the advantages that can be achieved with the invention are, in particular, that washing is carried out at the start of the wash cycle at a higher speed and a lower speed in the course of a switch-on period of the drive motor.
- good detergent dissolution and optimum laundry moisture are achieved right at the start of the wash cycle.
- the constant alternation between high and low speed results in a thorough mixing of the laundry with an optimal washing effect on the one hand and a good washing flow on the other.
- the temporary attitude The lower speed in the course of the entire washing cycle favors the scooping effect of the drum rib and the intensive washing flow.
- the drawing shows a speed diagram with a speed gradation in the switch-on periods of the drive motor.
- a gradual change in the drum speed takes place within the switch-on period of the drive motor.
- the drum is first accelerated to the increased speed n1 and after a period of z. B. 2 to 6 seconds driven at the lower speed n2.
- the speed n1 is preferably in a range from 50 to 60 min ⁇ 1 and the speed n2 in a range from 35 to 45 min ⁇ 1.
- the drum is driven in reverse mode during the wash cycle.
- the drum diameter is in a range from 430 to 500 mm. In the example shown, the drum is driven for about 5 to 6 seconds (t1) at a speed of 55 min ⁇ 1 and then for about 5 to 6 seconds (t2) at a speed of 40 min ⁇ 1.
- the washing process described above is used in washing programs with and without prewash.
- the drum is driven for a short period of time at the stepped speed n1 / n2 according to claim 1 in order to detach the dirt from the fiber.
- the drum is driven only at a stepped speed n1 / n2.
Description
Die Erfindung betrifft ein Waschverfahren für eine programmgesteuerte Trommelwaschmaschine mit Steuermitteln für die Drehzahleinstellung des Antriebsmotors und einer in einem Laugenbehälter drehbar gelagerten Wäschetrommel, die in ihrem Inneren mindestens eine Trommelrippe aufweist, wobei die Trommelrippe mit Wasserauslaßöffnungen und Wassereinlaßöffnungen ausgebildet ist, derart, daß durch die Trommelrippe eine in beiden Drehrichtungen der Trommel wirksame Schöpfwirkung während des Waschbetriebes entsteht und daß während des Waschganges Zyklen höherer und niedrigerer Trommeldrehzahlen einstellbar sind.The invention relates to a washing method for a program-controlled drum washing machine with control means for the speed adjustment of the drive motor and a laundry drum rotatably mounted in a tub, which has at least one drum rib in its interior, the drum rib being formed with water outlet openings and water inlet openings, such that the drum rib an effective scooping effect occurs in both directions of rotation of the drum during washing operation and that cycles of higher and lower drum speeds can be set during the washing cycle.
Das vorgegebene Waschverfahren soll einerseits eine gute Durchmischung der Wäsche im höheren Drehzahlbereich (Mechanik) und andererseits eine intensive Durchfeuchtung bzw. Durchflutung des Wäschepostens bewirken und dabei gleichzeitig energie- und wassersparend sein.The specified washing process is intended on the one hand to achieve thorough mixing of the laundry in the higher speed range (mechanics) and on the other hand to intensively moisten or flood the item of laundry and at the same time to save energy and water.
Es sind verschiedene Vorschläge bekannt, die darauf abzielen, bei Waschautomaten, in denen mit niedrigen Wasserständen gearbeitet wird, die Waschwirkung zu verbessern. Aus der DE-OS 33 24 481 ist beispielsweise bekannt, zur besseren Wäschedurchfeuchtung zu Beginn des Waschganges mit einer niedrigeren Durchfeuchtungsdrehzahl zu arbeiten und diese Trommeldrehzahl im Verlauf des Waschganges stufenweise zu erhöhen. Dadurch wird erreicht, daß die Wäsche zu Beginn des Waschganges schneller und besser durchfeuchtet wird.Various proposals are known which aim to improve the washing effect in washing machines which work with low water levels. From DE-OS 33 24 481 it is known, for example, to work at a lower rate of moisture penetration at the beginning of the wash cycle for better moisture penetration of the laundry and to gradually increase this drum speed in the course of the wash cycle. This ensures that the laundry is moistened faster and better at the beginning of the wash cycle.
Weiterhin wird in der DE-OS 37 12 118 eine Trommelwaschmaschine mit in an sich bekannter Weise als Schöpfgefäße ausgebildeten Trommelrippen beschrieben. Diese Schöpfgefäße bzw. Trommelrippen sollen die Durchfeuchtung der Wäsche unterstützen, indem sie bei niedrigerer Drehzahl zu Beginn des Waschganges Waschflotte mitnehmen und von oben auf die Wäsche rieseln lassen.Furthermore, DE-OS 37 12 118 describes a drum washing machine with drum ribs designed in a manner known per se as scoops. These scoops or drum ribs are intended to support the moistening of the laundry by taking wash liquor with them at a lower speed at the beginning of the wash cycle and letting them trickle onto the laundry from above.
Bei beiden genannten Trommelwaschmaschinen wird jeweils nur zu Anfang des Waschvorganges die Durchfeuchtung der Wäsche begünstigt.In both of the above-mentioned drum washing machines, the dampening of the laundry is only promoted at the beginning of the washing process.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Waschverfahren für eine programmgesteuerte Trommelwaschmaschine so zu gestalten, daß, die Waschwirkung sowie die Ausnutzung der Waschmittel verbessert wird und gleichzeitig energie- und wassersparend verfahren wird.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst, dadurch, daß während des gesamten Waschganges ein ständiger Wechsel von höherer und niedrigerer Waschdrehzahl erfolgt
Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Ansprüchen.The invention is therefore based on the object of designing a washing process for a program-controlled drum washing machine in such a way that the washing action and the utilization of the detergents are improved and at the same time the process is energy and water-saving.
This object is achieved by the features of claim 1, characterized in that there is a constant change of higher and lower washing speed during the entire wash cycle
Advantageous refinements and developments of the invention result from the following claims.
Die mit der Erfindung erzielbaren Vorteile liegen insbesondere darin, daß zu Beginn des Waschganges mit einer höheren Drehzahl und einer niedrigen Drehzahl im Verlauf einer Einschaltperiode des Antriebsmotors gewaschen wird. Dadurch wird gleich zu Beginn des Waschganges eine gute Auflösung des Waschmittels und eine optimale Wäschedurchfeuchtung erreicht. Im weiteren Verlauf des Waschprogrammes findet durch den ständigen Wechsel von hoher und niedrigerer Drehzahl einerseits eine gute Durchmischung der Wäsche bei optimaler Waschwirkung und andererseits eine gute Wäschedurchflutung statt. Die zeitweise Einstellung der niedrigeren Drehzahl im Verlauf des gesamten Waschganges begünstigt die Schöpfwirkung der Trommelrippe und die intensive Wäschedurchflutung.The advantages that can be achieved with the invention are, in particular, that washing is carried out at the start of the wash cycle at a higher speed and a lower speed in the course of a switch-on period of the drive motor. As a result, good detergent dissolution and optimum laundry moisture are achieved right at the start of the wash cycle. In the further course of the washing program, the constant alternation between high and low speed results in a thorough mixing of the laundry with an optimal washing effect on the one hand and a good washing flow on the other. The temporary attitude The lower speed in the course of the entire washing cycle favors the scooping effect of the drum rib and the intensive washing flow.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert.An embodiment of the invention is shown in the drawing and is explained in more detail below.
Die Zeichnung zeigt ein Drehzahldiagramm mit einer Drehzahlabstufung in den Einschaltperioden des Antriebsmotors.The drawing shows a speed diagram with a speed gradation in the switch-on periods of the drive motor.
Innerhalb der Einschaltperiode des Antriebsmotors erfolgt eine stufenweise Veränderung der Trommeldrehzahl. Die Trommel wird zunächst auf die erhöhte Drehzahl n1 beschleunigt und nach Ablauf einer Zeit von z. B. 2 bis 6 Sekunden mit der niedrigeren Drehzahl n2 angetrieben. Dabei liegt die Drehzahl n1 vorzugsweise in einem Bereich von 50 bis 60 min⁻¹ und die Drehzahl n2 in einem Bereich von 35 bis 45 min⁻¹. Die Trommel wird während des Waschganges im Reversierbetrieb angetrieben. Der Trommeldurchmesser liegt in einem Bereich von 430 bis 500 mm. In dem gezeigten Beispiel wird die Trommel in einer Einschaltperiode ca. 5 bis 6 Sekunden (t1) mit einer Drehzahl von 55 min⁻¹ und dann ca. 5 bis 6 Sekunden (t2) mit einer Drehzahl von 40 min⁻¹ angetrieben. Danach sind 4 Sekunden Pause (t3) vorgesehen, bevor die nächste Einschaltperiode mit geänderter Drehrichtung, aber gleichen Zeitabschnitten erfolgt. Auf die Durchflutungsdrehzahlphase n2 = 40 min⁻¹ folgt demnach eine Pause, in der die Lauge wie in einem Einweichvorgang auf die Wäsche einwirken kann. In der nächsten Einschaltperiode des Antriebsmotors wird die Trommeldrehzahl wieder auf die höhere Drehzahl n1 = 55 min⁻¹ eingestellt, um mit der Waschdrehzahl den Schmutz von der Faser des Textils zu lösen und wegzuwaschen. Zur besonderen Wäscheschonung kann der Benutzer einen Schongang anwählen, in dem dann automatisch kürzere Einschaltzeiten und längere Pausen des Antriebsmotors eingestellt werden. Im Schongang wird z. B. während der Einschaltperiode des Antriebsmotors zunächst die Drehzahl von 55 min⁻¹ für eine Zeit von 3 Sekunden und dann die niedrigere Drehzahl von 40 min⁻¹ für 3 Sekunden eingestellt. Nach 9 Sekunden Pause folgt die nächste Einschaltperiode mit geänderter Drehrichtung.A gradual change in the drum speed takes place within the switch-on period of the drive motor. The drum is first accelerated to the increased speed n1 and after a period of z. B. 2 to 6 seconds driven at the lower speed n2. The speed n1 is preferably in a range from 50 to 60 min⁻¹ and the speed n2 in a range from 35 to 45 min⁻¹. The drum is driven in reverse mode during the wash cycle. The drum diameter is in a range from 430 to 500 mm. In the example shown, the drum is driven for about 5 to 6 seconds (t1) at a speed of 55 min⁻¹ and then for about 5 to 6 seconds (t2) at a speed of 40 min⁻¹. Then there is a 4-second pause (t3) before the next switch-on period takes place with a changed direction of rotation but the same time periods. The flow-through speed phase n2 = 40 min⁻¹ is followed by a pause, during which the lye can act on the laundry as in a soaking process. In the next switch-on period of the drive motor, the drum speed is set again to the higher speed n1 = 55 min⁻¹ in order to loosen the dirt from the fiber of the textile and wash it away with the washing speed. To protect the laundry, the user can select a gentle cycle, in which then shorter switch-on times and longer breaks in the Drive motor can be set. In gentle cycle z. B. during the switch-on period of the drive motor first set the speed of 55 min⁻¹ for a time of 3 seconds and then the lower speed of 40 min⁻¹ for 3 seconds. After a pause of 9 seconds, the next switch-on period follows with changed direction of rotation.
Das vorbeschriebene Waschverfahren findet in Waschprogrammen mit und ohne Vorwäsche Anwendung.
Bei Waschprogrammen mit Vorwaschgang kann z. B. der Vorwaschgang im wesentlichen mit der niedrigeren Trommeldrehzahl von n2 = 40 min⁻¹ im Reversierrhythmus zur besseren Wäsachedurchfeuchtung betrieben werden. Zum Schluß des Vorwaschganges wird die Trommel für einen kurzen Zeitabschnitt mit der abgestuften Drehzahl n1/n2 gemäß Anspruch 1 angetrieben, um den Schmutz von der Faser zu lösen. Im Hauptwaschgang wird die Trommel nur mit abgestufter Drehzahl n1/n2 gemäß Anspruch 1 angetrieben.The washing process described above is used in washing programs with and without prewash.
For washing programs with a pre-wash cycle, e.g. B. the prewash cycle can be operated essentially with the lower drum speed of n2 = 40 min⁻¹ in the reverse rhythm for better washing moisture. At the end of the prewash cycle, the drum is driven for a short period of time at the stepped speed n1 / n2 according to claim 1 in order to detach the dirt from the fiber. In the main wash cycle, the drum is driven only at a stepped speed n1 / n2.
Claims (7)
- Washing technique for a programme-controlled washing machine with controls for the spin and wash speeds of the motor and an inner drum with a pivotal bearing within the suds container; this inner drum has at least one drum rib on its circumference. This rib is designed with water inlet and outlet perforations so that ladle action occurs in both directions of drum rotation throughout the programme, whereby cycles with lower and higher drum speeds are interspersed throughout the washing phase,subdividing a duty cycle into two sub-cycles, each with a different speed, whilst maintaining the same direction of rotation; a higher speed (n1) is first operative for a prescribed time (t1) and, at the end of this period (t1), a lower speed (n2) is then activated for a predefined time (t2) to guarantee that the ladle action of the rib and thorough drenching of the wash load is most effective.
- Washing technique for a programme-controlled washing machine according to claim 1, whereby the high speed (n1) is 50 - 60 rpm and the low speed (n2) is between 35 - 45 rpm.
- Washing technique for a programme-controlled washing machine according to claims 1 and 2, whereby the prescribed times t1 and t2 can be between 2 and 6 seconds in duration.
- Washing technique for a programme-controlled washing machine according to one of the claims 1 to 3, whereby on wash programmes with a pre-wash cycle the low speed n2 should be activated first, followed at the end of a prescribed period by the graduated speed n1/n2.
- Washing technique for a programme-controlled washing machine according to one of the claims 1 to 4, whereby on wash programmes with a pre-wash cycle the graduated speed n1/n2 should be activated for the main wash.
- Washing technique for a programme-controlled washing machine according to one of the claims 1 to 3, whereby on wash programmes without a pre-wash cycle the low speed should be activated at the beginning of the main wash, followed at the end of a prescribed period by the graduated speed n1/n2.
- Washing technique for a programme-controlled washing machine according to one of the claims 1 to 6, whereby in the gentle action cycle the motor is operative with shorter duty cycles (t1, t2) and longer pauses (t3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3838548 | 1988-11-14 | ||
| DE3838548 | 1988-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0369933A1 EP0369933A1 (en) | 1990-05-23 |
| EP0369933B1 true EP0369933B1 (en) | 1993-07-28 |
Family
ID=6367138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89710072A Expired - Lifetime EP0369933B1 (en) | 1988-11-14 | 1989-10-06 | Washing method for a programmed drum washing machine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0369933B1 (en) |
| DE (1) | DE58905044D1 (en) |
| ES (1) | ES2042054T3 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04276293A (en) * | 1991-03-01 | 1992-10-01 | Toshiba Corp | Drum type washing machine |
| DE4310595A1 (en) * | 1993-03-31 | 1994-10-06 | Bosch Siemens Hausgeraete | Washing machine with a reversing laundry drum |
| ES2146130B1 (en) * | 1995-12-27 | 2001-02-16 | Fagor S Coop | CLOTHING WASHING METHOD IN A DOMESTIC WASHER. |
| DE102013106089A1 (en) * | 2013-06-12 | 2014-12-18 | Miele & Cie. Kg | Washing process for a washing machine |
| CN109722854B (en) * | 2017-10-27 | 2023-06-16 | 合肥海尔洗衣机有限公司 | Clothing data collection and analysis method and system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1410174A1 (en) * | 1958-07-28 | 1970-05-06 | Constructa Werke Gmbh | Process for the mechanical treatment of items to be washed and washing machine operating according to this |
| DE1262202B (en) * | 1962-06-25 | 1968-03-07 | Constructa Werke G M B H | Method and control device for washing delicates |
| US3172278A (en) * | 1963-07-09 | 1965-03-09 | Maytag Co | Fabric treating machine with drive means to effect a tumble, distribution and extraction operation |
| DE3324481A1 (en) * | 1983-07-07 | 1985-01-24 | Miele & Cie GmbH & Co, 4830 Gütersloh | WASHING METHOD FOR A PROGRAM-CONTROLLED DRUM WASHING MACHINE |
| DE3712118A1 (en) * | 1986-05-06 | 1987-11-12 | Bosch Siemens Hausgeraete | DRUM WASHING MACHINE |
-
1989
- 1989-10-06 EP EP89710072A patent/EP0369933B1/en not_active Expired - Lifetime
- 1989-10-06 ES ES198989710072T patent/ES2042054T3/en not_active Expired - Lifetime
- 1989-10-06 DE DE8989710072T patent/DE58905044D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0369933A1 (en) | 1990-05-23 |
| DE58905044D1 (en) | 1993-09-02 |
| ES2042054T3 (en) | 1993-12-01 |
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