EP1096050A2 - Method for balancing rotating bodies - Google Patents
Method for balancing rotating bodies Download PDFInfo
- Publication number
- EP1096050A2 EP1096050A2 EP00122114A EP00122114A EP1096050A2 EP 1096050 A2 EP1096050 A2 EP 1096050A2 EP 00122114 A EP00122114 A EP 00122114A EP 00122114 A EP00122114 A EP 00122114A EP 1096050 A2 EP1096050 A2 EP 1096050A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- speed
- balancing
- unbalance
- drum
- imbalance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000011156 evaluation Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims description 16
- 230000001133 acceleration Effects 0.000 claims description 12
- 238000013016 damping Methods 0.000 claims description 9
- 230000005484 gravity Effects 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000010009 beating Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 101100478674 Mus musculus Stk3 gene Proteins 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 230000035559 beat frequency Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
- D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
- D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets
-
- 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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/48—Preventing or reducing imbalance or noise
-
- 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
- D06F2103/26—Imbalance; Noise level
-
- 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
- D06F34/16—Imbalance
Definitions
- the invention relates to a method for balancing a body by a controlled Drive is rotated using a balancing device consisting of at least one rotating with the body, arranged concentrically to its axis of rotation circular raceway within which weights are freely movable, and using an unbalance detection device which detects the deflections caused by the unbalance of the system consisting of the body and the balancing device during the rotation and / or its unbalanced speed fluctuations in an unbalance signal converts, the system using in a first method step for unbalance detection a speed below its critical speed or below the critical speed its bearing system is rotated and the balancing device is designed in such a way that the weights are taken along by the track (s) at this speed.
- the In particular, the invention relates to such a method for balancing the drum Drum washing machine.
- a balancing device of the type mentioned at the outset is, for example, from EP 0 640 192 known. It is a so-called ball balancer, in which within the Race balls are freely movable.
- the disadvantage of this balancer is that the work area is elementary from the one selected Frequency range or the speed of the body to be balanced depends.
- An unrestricted one Effect is only in the frequency range above the largest resonance frequency (the greatest critical speed) of the body or its entire bearing system guaranteed from the suspension or fastening or the like, between the resonances (critical speeds), the balancer compensates only to a limited extent unbalance (see, for example, Kellenberger: Elastic balancing; Springer Verlag; P. 402f, esp. P. 408, Fig.20.6).
- DE 197 18 321 describes a method for balancing the drum of a washing machine using a ball balancer: After the wash cycle, the drum is accelerated to a speed above the lay-on speed, so that the laundry adheres to the drum jacket due to the centrifugal force and possibly imbalance due to uneven distribution. The position of this Laundry imbalance is then sensed.
- the track of the ball balancer is with a viscous Damping agent (for example silicone oil) filled, its viscosity dimensioned in this way is that the balls roll freely in the speed range of the unbalance sensor. Subsequently the drum is at a certain, previously determined position of unbalance and balls accelerated so much that the balls are carried away by the damping agent.
- a viscous Damping agent for example silicone oil
- the disadvantage of this method is the strong temperature dependence of the damping agent viscosity. Especially when using ball balancers in washing machines, at which the alkali temperature and thus the temperature of the damping agent can fluctuate between 20 ° C and 100 ° C, compliance with the exact specification of the Friction behavior only possible with very expensive oils. It is also the phase in which Balls and laundry imbalance face each other, only very briefly with each drum revolution There may be errors in sensing the unbalance position or in the exact positioning of balls occur when the drum passes through the critical speed range can no longer be taken into account or corrected. Then there are very strong ones Deflections of the vibrating unit.
- the invention thus presents the problem of a method for balancing a rotating one Reveal body of the type mentioned, in which safely and in the shortest possible time Time to compensate for the imbalance before passing through the critical speed range or its resonance frequencies are reached.
- the advantage that can be achieved with the method designed according to the invention results from the Evaluation of relatively low-frequency compensation processes, so that the time of compensation the unbalance can be determined very precisely and thus a passage through the critical speed range with the least unbalance is possible.
- the invention is based on the following finding:
- the passage through the critical speed range is usually very fast and can be regarded as a transition between the two phases described above.
- the slip between the weights and the body unbalance leads to the fact that two sinusoidal unbalance signals (the weights also represent an unbalance with an uneven distribution in the raceway) overlap with different frequencies and lead to a floating of the total unbalance signal (see Figure 2).
- the reason is that the unbalance of the body rotates at the speed of the body and the unbalance of the balls has a slightly lower speed due to the slippage. Since the speed difference is very small, the beat is low-frequency. In the example described below it is a washing machine drum at a drum speed of 100 min -1 for about 60 seconds. In the minimum of the beat, body imbalance and the center of gravity are opposite each other and compensate each other.
- the non-sinusoidal speed curve can be determined by a Targeted regulation or control can be achieved with the drive being positive or negative Acceleration impulses are impressed on the rotating system. These impulses will be advantageously released in such a way that they act periodically on the system. By Such targeted impulses can (even with bodies with a horizontal axis of rotation) the duration of the Beat can be affected.
- FIG. 4 shows the parts essential for the invention in a schematic diagram such washing machine. It has a tub (1) in which a drum (2) for Laundry (3) is rotatably mounted. The drum (2) is driven by a Motor (4), the power transmission via a V-belt (5). The speed of the motor in a known manner by a in the microprocessor control (6) of the washing machine integrated motor controller (6a) can be set depending on the program and status.
- the tub (1) is suspended from springs (7) in the housing (8) and becomes a Damping of these vibrations in the lower area by shock absorbers (9) compared to Supported base (10). To further dampen the vibrations are on the tub (1) Additional weights (11) arranged so that it passes through the critical Speed range does not strike the housing (8).
- a so-called ball balancer In the drum cap (in the front drum area, not shown) and possibly additionally in the drum base (in the rear drum area, not shown) is a so-called ball balancer is used.
- Balls (13) arranged as weights and can freely in the circumferential direction of the drum move. To ensure maximum compensation, each track (12) must be in tightest packing can be filled with balls in a given angular range. By Setting the size and number of balls (13) can cause an imbalance in the order of magnitude of their total weight are generated and thus also compensated. With one-sided Washing machine drums (2), a ball balancer on the drum cap is sufficient.
- Imbalance weights in the rear part of the drum (2) have only a small lever in the front Part of the drum (2) a large lever arm.
- the unbalance forces are from the drum (2) via the bearings (not shown) to the vibrating unit (tub (1), springs (7), Shock absorber (9)) passed on.
- the vibrating unit tub (1), springs (7), Shock absorber (9)
- the load is on the torque and thus on the product of unbalance mass, acceleration and lever arm due. It is therefore sufficient to have the unbalanced masses with the large lever arm the front half of the drum.
- the on the unbalances A and B or the centrifugal force acting on the resulting total unbalance C. vectorially overlaps the weight, so that the weight signal is unbalanced is exposed to periodic fluctuations, which are used to determine the imbalance by the Computer circuit (6b) can be used.
- the displacement sensor (14) for example an acceleration sensor known from DE 195 22 393 for unbalance sensing be used.
- another Computer circuit (6c) the unbalance by evaluating the fluctuations of a speed-dependent Signals (motor current, slip ...) or the speed itself (with a tachometer generator (15)).
- An evaluation circuit (6d) integrated in the microprocessor control prepares this during the unbalance signal of the computer circuit (s) (6b, c) measured in terms of the drum rotation, that only the envelope of the amount of the unbalance signal is determined and for further engine control is evaluated (see FIG. 3).
- the method according to the invention for balancing the drum of a washing machine is based on of a speed-time profile shown in Figure 5 and works as follows:
- the liquor is first pumped out of the tub (1). Then the spin start is started. It starts with a measuring speed n Mess1 above the laundry application speed n A , but below the lowest resonance speed n R1 .
- the speed can be increased for a short moment to a dewatering speed n E immediately after distributing the laundry on the drum jacket (2c), however, the value must always be lower than the lowest resonance speed n R1 .
- the speed is then reduced again to the measuring speed n Mess1 .
- the total unbalance C is sensed by the computer circuit (s) (6b, c).
- the evaluation circuit evaluates the envelope of the signal amount from the unbalance signal in order to start the resonance passage at the minimum beat. For this purpose, the spin-up is continued and the drum (2) is accelerated to a speed above the resonance frequency n R1 .
- the beat frequency (see FIG. 2) can be determined by strong periodic acceleration pulses decrease so that the time to pass through the beating minimum is shortened in time.
- a start time for the spin-up run is chosen, which is before reaching the beating minimum. Since the balls (13) through the slip to the passage through the resonance speeds and the Acceleration to the spin speed itself greatly increases the slip can be achieved be that at the time of driving through the critical speed a minimum of unbalance acts and thus the deflection of the vibrating unit is kept small.
- the evaluation circuit (6d) waits until the total unbalance falls below a threshold which is dependent on the first minimum, on the total load, on the type of laundry and on the ramp-up method and which is greater than the minimum sensed at first. Then the actual spin-up starts due to the resonance speeds n Ri .
- a faster alternative is to calculate a start time for the spin-up through the evaluation circuit (6d), which lies before the first beat minimum. This time depends on the operating point (load state) of the washing machine and can be calculated from the envelope using an algorithm.
- the optimal point is in Range of the turning point of the envelope, in any case before reaching the first Minimums.
- Another improvement is laundry imbalance in size and / or position to generate consciously.
- the goal is to position it as evenly as possible on the drum casing (2c).
- both the type of laundry as well as the amount of laundry by sensing different parameters e.g. suction times, lowering of the tub, etc.
- can be by a speed pulse to the compensation capacity of the balls (13) generate corresponding laundry imbalance.
- the beating minimum almost the entire laundry imbalance is compensated by the ball conglomerate.
- Targeted positioning of the laundry imbalance to the ball conglomerate can take the time up to Finding the minimum can be significantly shortened.
- these algorithms can also be repeated between the individual resonance ranges n Ri .
- the balancing range n messi between individual resonance frequencies n Ri can also be used for further unbalance minimization .
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Testing Of Balance (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Auswuchten eines Körpers, der durch einen geregelten Antrieb in Rotation versetzt wird, unter Verwendung einer Auswuchtvorrichtung, bestehend aus mindestens einer mit dem Körper umlaufenden, konzentrisch zu seiner Rotationsachse angeordneten kreisringförmigen Laufbahn, innerhalb der Gewichte frei beweglich angeordnet sind, und unter Verwendung einer Unwuchterkennungseinrichtung, die die unwuchtbedingten Auslenkungen des aus dem Körper und der Auswuchteinrichtung bestehenden Systems während der Rotation und/oder dessen unwuchtbedingte Drehzahlschwankungen in ein Unwuchtsignal umwandelt, wobei das System in einem ersten Verfahrensschritt zur Unwuchterkennung mit einer Drehzahl unterhalb seiner kritischen Drehzahl oder unterhalb der kritischen Drehzahl seines Lagersystems gedreht wird und wobei die Auswuchteinrichtung derart beschaffen ist, dass die Gewichte bei dieser Drehzahl von der (den) Laufbahn(en) mitgenommen werden. Die Erfindung betrifft insbesondere ein solches Verfahren zum Auswuchten der Trommel einer Trommelwaschmaschine.The invention relates to a method for balancing a body by a controlled Drive is rotated using a balancing device consisting of at least one rotating with the body, arranged concentrically to its axis of rotation circular raceway within which weights are freely movable, and using an unbalance detection device which detects the deflections caused by the unbalance of the system consisting of the body and the balancing device during the rotation and / or its unbalanced speed fluctuations in an unbalance signal converts, the system using in a first method step for unbalance detection a speed below its critical speed or below the critical speed its bearing system is rotated and the balancing device is designed in such a way that the weights are taken along by the track (s) at this speed. The In particular, the invention relates to such a method for balancing the drum Drum washing machine.
Eine Auswuchtvorrichtung der eingangs genannten Art ist beispielsweise aus der EP 0 640 192 bekannt. Dabei handelt es sich um einen sogenannten Kugelauswuchter, bei dem innerhalb der Laufbahnen Kugeln frei beweglich angeordnet sind.A balancing device of the type mentioned at the outset is, for example, from EP 0 640 192 known. It is a so-called ball balancer, in which within the Race balls are freely movable.
Der Nachteil dieser Auswuchter besteht darin, dass der Arbeitsbereich elementar vom gewählten Frequenzbereich bzw. der Drehzahl des auszuwuchtenden Körpers abhängt. Eine uneingeschränkte Wirkung ist lediglich im Frequenzbereich oberhalb der größten Resonanzfrequenz (der größten kritischen Drehzahl) des Körpers bzw. seines gesamten Lagersystems, bestehend aus der Aufhängung bzw. Befestigung o. dgl. gewährleistet, zwischen den Resonanzen (kritischen Drehzahlen) kompensiert der Auswuchter nur bedingt Unwuchten (s. bspw. Kellenberger: Elastisches Wuchten; Springer Verlag; S. 402f, insbes. S. 408, Abb. 20.6).The disadvantage of this balancer is that the work area is elementary from the one selected Frequency range or the speed of the body to be balanced depends. An unrestricted one Effect is only in the frequency range above the largest resonance frequency (the greatest critical speed) of the body or its entire bearing system guaranteed from the suspension or fastening or the like, between the resonances (critical speeds), the balancer compensates only to a limited extent unbalance (see, for example, Kellenberger: Elastic balancing; Springer Verlag; P. 402f, esp. P. 408, Fig.20.6).
In der DE 197 18 321 wird ein Verfahren zum Auswuchten der Trommel einer Waschmaschine unter Verwendung eines Kugelauswuchters beschrieben: Nach dem Waschgang wird die Trommel auf eine Drehzahl oberhalb der Anlegedrehzahl beschleunigt, so dass die Wäsche aufgrund der Zentrifugalkraft am Trommelmantel haftet und eventuell durch ungleichmäßige Verteilung eine Unwucht ausbildet. Die Position dieser Wäscheunwucht wird dann sensiert. Die Laufbahn des Kugelauswuchters ist mit einem viskosen Dämpfungsmittel (beispielsweise Silikonöl) gefüllt, dessen Viskosität derart dimensioniert ist, dass die Kugeln im Drehzahlbereich der Unwuchtsensierung noch frei abrollen. Anschließend wird die Trommel bei einer bestimmten, zuvor ermittelten Lage von Unwucht und Kugeln so stark beschleunigt, dass die Kugeln vom Dämpfungsmittel mitgerissen werden. Es soll damit erreicht werden, dass sich Unwucht und Kugelschwerpunkt gegenüberliegen und somit schon beim Durchlaufen des kritischen Drehzahlbereichs (Resonanzfrequenz) kompensieren. Der Nachteil dieses Verfahrens besteht in der starken Temperaturabhängigkeit der Dämpfungsmittel-Viskosität. Insbesondere bei einem Einsatz von Kugelauswuchtern in Waschmaschinen, bei denen die Laugentemperatur und damit die auch die Temperatur des Dämpfungsmittels zwischen 20°C und 100°C schwanken kann, ist eine Einhaltung der genauen Vorgabe des Reibungsverhaltens nur mit sehr teuren Ölen möglich. Außerdem ist die Phase, in der sich Kugeln und Wäscheunwucht gegenüberliegen, bei jeder Trommelumdrehung nur sehr kurz und es können Fehler bei der Sensierung der Unwuchtposition oder bei der exakten Positionierung der Kugeln auftreten, die beim Durchgang der Trommel durch den kritischen Drehzahlbereich nicht mehr berücksichtigt oder korrigiert werden können. Es kommt dann zu sehr starken Auslenkungen des schwingenden Aggregats.DE 197 18 321 describes a method for balancing the drum of a washing machine using a ball balancer: After the wash cycle, the drum is accelerated to a speed above the lay-on speed, so that the laundry adheres to the drum jacket due to the centrifugal force and possibly imbalance due to uneven distribution. The position of this Laundry imbalance is then sensed. The track of the ball balancer is with a viscous Damping agent (for example silicone oil) filled, its viscosity dimensioned in this way is that the balls roll freely in the speed range of the unbalance sensor. Subsequently the drum is at a certain, previously determined position of unbalance and balls accelerated so much that the balls are carried away by the damping agent. It is supposed to achieved that the unbalance and the center of gravity are opposite each other and therefore already Compensate when passing through the critical speed range (resonance frequency). The The disadvantage of this method is the strong temperature dependence of the damping agent viscosity. Especially when using ball balancers in washing machines, at which the alkali temperature and thus the temperature of the damping agent can fluctuate between 20 ° C and 100 ° C, compliance with the exact specification of the Friction behavior only possible with very expensive oils. It is also the phase in which Balls and laundry imbalance face each other, only very briefly with each drum revolution There may be errors in sensing the unbalance position or in the exact positioning of balls occur when the drum passes through the critical speed range can no longer be taken into account or corrected. Then there are very strong ones Deflections of the vibrating unit.
Aus der DE 198 57 663 ist eine Waschmaschine bekannt, bei der die Laufbahn mit einem viskosen Dämpfungsmittel gefüllt ist, welches die Kugeln bereits bei Waschdrehzahl mitnimmt. Hierdurch ist die Dimensionierung der Viskosität unkritischer. Durch Sensierung der durch die Kugeln gebildeten Festunwucht B und anschließende schnelle Beschleunigung aus einer Position, in der sich die Kugeln in einem vorgegebenen Winkelbereich befinden, soll erreicht werden, dass sich gezielt eine Wäscheunwucht A gegenüber der Festunwucht B ausbildet. Die Lage der beiden Unwuchten zueinander kann dann noch durch kurze Brems- oder Beschleunigungsimpulse verändert werden, so dass der Schleuderhochlauf in dem Moment fortgesetzt und die Schleuderdrehzahl über die kritische Drehzahl hinaus erhöht wird, wenn sich die beiden Unwuchten gegenüberliegen und bestens kompensieren. Da die Lageveränderung der Kugeln rein zufällig erfolgt, können bis zum Erreichen einer zufriedenstellenden Unwuchtverteilung zahlreiche Brems- bzw. Beschleunigungsvorgänge mit anschließender Unwuchtsensierung notwendig sein, was zu sehr langen Wartezeiten führt. Außerdem werden durch die Bremsimpulse der Motor, der Antriebsriemen und die Trommellager belastet.From DE 198 57 663 a washing machine is known in which the career with a viscous Damping agent is filled, which takes the balls at the washing speed. This makes the dimensioning of the viscosity less critical. By sensing the through the Balls formed fixed unbalance B and subsequent rapid acceleration from a Position in which the balls are in a given angular range should be reached that a laundry imbalance A is formed in relation to the fixed unbalance B. The The position of the two unbalances in relation to one another can then be achieved by brief braking or acceleration pulses be changed so that the centrifugal ramp-up continues at the moment and the spin speed is increased beyond the critical speed when the two Oppose unbalances and compensate in the best possible way. Because the change in position of the balls done purely by chance, can achieve a satisfactory imbalance distribution Numerous braking and acceleration processes with subsequent unbalance sensing be necessary, which leads to very long waiting times. In addition, the braking pulses the motor, the drive belt and the drum bearings are loaded.
Der Erfindung stellt sich somit das Problem, ein Verfahren zum Auswuchten eines rotierenden Körpers der eingangs genannten Art zu offenbaren, bei welchem sicher und in möglichst kurzer Zeit eine Kompensation der Unwucht vor dem Durchgang durch den kritischen Drehzahlbereich bzw. seine Resonanzfrequenzen erreicht wird.The invention thus presents the problem of a method for balancing a rotating one Reveal body of the type mentioned, in which safely and in the shortest possible time Time to compensate for the imbalance before passing through the critical speed range or its resonance frequencies are reached.
Erfindungsgemäß wird dieses Problem durch ein Verfahren mit den Merkmalen des Patentanspruchs
1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben
sich aus den nachfolgenden Unteransprüchen.According to the invention, this problem is solved by a method with the features of the
Der mit dem erfindungsgemäß ausgebildeten Verfahren erreichbare Vorteil ergibt sich durch die Auswertung relativ niederfrequenter Ausgleichsvorgänge, so dass der Zeitpunkt der Kompensation der Unwucht sehr exakt vorherbestimmt werden kann und damit ein Durchgang durch den kritischen Drehzahlbereich mit der geringsten Unwucht möglich ist.The advantage that can be achieved with the method designed according to the invention results from the Evaluation of relatively low-frequency compensation processes, so that the time of compensation the unbalance can be determined very precisely and thus a passage through the critical speed range with the least unbalance is possible.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt
Figur 1- den asymmetrischen Drehzahlverlauf eines rotierenden Körpers mit horizontaler Drehachse und geregeltem Antrieb
Figur 2- das Unwuchtsignal der aus Wäsche und Gewichten bestehenden Gesamtunwucht über der Zeit
Figur 3- die Hüllkurve des Betrags des Unwuchtsignals
Figur 4- eine Schemaskizze einer Waschmaschine zur Durchführung eines erfindungsgemäß ausgebildeten Auswuchtverfahrens
Figur 5- ein Drehzahl-Zeit-Profil bei einer solchen Waschmaschine
- Figure 1
- the asymmetrical speed curve of a rotating body with a horizontal axis of rotation and controlled drive
- Figure 2
- the imbalance signal of the total imbalance of laundry and weights over time
- Figure 3
- the envelope of the amount of the unbalance signal
- Figure 4
- a schematic diagram of a washing machine for carrying out a balancing method designed according to the invention
- Figure 5
- a speed-time profile in such a washing machine
Der Erfindung liegt folgende Erkenntnis zugrunde:The invention is based on the following finding:
Bei rotierenden Körpern mit horizontaler oder annähernd horizontaler Drehachse, welche mit einer Unwucht behaftet sind, ändert sich die Drehzahl periodisch mit der Unwuchtlage. Besitzt der Körper einen geregelten Antrieb, so versucht die Regelung zwar, diese Änderungen auszugleichen, dies führt aber dann zu periodischen, nicht-sinusförmigen Schwankungen im Drehzahlsignal (s. Figur 1).In the case of rotating bodies with a horizontal or approximately horizontal axis of rotation, which with are subject to an imbalance, the speed changes periodically with the imbalance position. Owns If the body has a regulated drive, the regulation tries to make these changes to compensate, but this then leads to periodic, non-sinusoidal fluctuations in the Speed signal (see Figure 1).
Deshalb liegt keine ideale kreisförmige Bewegung des rotierenden Körpers vor. Für solche
Körper mit dynamischen Auswuchteinrichtungen gemäß Oberbegriff des zu prüfenden
Anspruchs 1 gelten deshalb nur bedingt die theoretischen Grundlagen (s. beispielsweise
Kellenberger: Elastisches Wuchten; Springer Verlag, S. 402 f), die besagen, dass sich
zwischen dem Schwerpunkt der Ausgleichsgewichte und dem Unwuchtschwerpunkt eine
konstante Phasenverschiebung einstellt, welche im unterkritischen Drehzahlbereich 0°, im
kritischen Drehzahlbereich 90° und im überkritischen Bereich 180° beträgt.Therefore, there is no ideal circular movement of the rotating body. For such
Bodies with dynamic balancing devices in accordance with the generic term of the
Im unterkritischen Bereich sind die Zentrifugalkräfte wegen der niedrigen Drehzahl nur gering. Deshalb überwiegen die Kräfte in Umfangsrichtung der Laufbahn, die aufgrund der regelungsbedingten Schwankungen auf die Ausgleichsgewichte wirken. Es entsteht dann ein Schlupf zwischen den Gewichten und der Laufbahn und folglich auch zwischen den Gewichten und der als ortsfest angenommenen Körperunwucht. Hierdurch "wandert" die Schwerpunktlage der Ausgleichsmassen permanent im Bezug zum Schwerpunkt der Körperunwucht.In the subcritical range, the centrifugal forces are only low due to the low speed. Therefore, the forces in the circumferential direction of the career predominate, which are due to the regulation Variations affect the counterweights. A slip then arises between the weights and the career and consequently also between the weights and the body imbalance assumed to be stationary. This "wanders" the center of gravity of the Compensating masses permanently in relation to the center of gravity of the body unbalance.
Im überkritischen Drehzahlbereich wirken hohe Zentrifugalkräfte auf die Gewichte und verursachen bei diesen eine hohe Haftreibung der Laufbahn. Die durch die Haftreibung verursachte Reibkraft wirkt den Kräften in Umfangsrichtung der Laufbahn entgegen, die aufgrund der regelungsbedingten Schwankungen entstehen. Deshalb nehmen die Gewichte konstante Positionen ein, wobei zwischen dem Gewichtsschwerpunkt und dem Unwuchtschwerpunkt eine konstante Phasenverschiebung von 180° auftritt. Die Gewichte kompensieren dann die Unwucht.In the supercritical speed range, high centrifugal forces act on the weights and cause them with these a high stiction of the career. The caused by the static friction Friction counteracts the forces in the circumferential direction of the raceway that are due to the fluctuations caused by the regulation arise. That is why the weights take constant Positions, one between the center of gravity and the center of gravity constant phase shift of 180 ° occurs. The weights then compensate for that Unbalance.
Der Durchgang durch den kritischen Drehzahlbereich erfolgt in der Regel sehr schnell und kann als Übergang zwischen den beiden vorbeschriebenen Phasen betrachtet werden.The passage through the critical speed range is usually very fast and can be regarded as a transition between the two phases described above.
Im unterkritischen Bereich führt der Schlupf zwischen den Gewichten und der Körperunwucht dazu, dass sich zwei sinusförmige Unwuchtsignale (auch die Gewichte stellen bei ungleicher Verteilung in der Laufbahn eine Unwucht dar) mit unterschiedlichen Frequenzen überlagern und zu einer Schwebung des Gesamt-Unwuchtsignals führen (s. Figur 2). Die Ursache liegt darin, dass die Körperunwucht mit der Drehzahl des Körpers umläuft und die Unwucht der Kugeln aufgrund des Schlupfes eine etwas geringere Drehzahl aufweist. Da der Drehzahlunterschied nur sehr gering ist, ist die Schwebung niederfrequent. Sie beträgt bei dem nachfolgend beschriebenen Beispiel einer Waschmaschinentrommel bei einer Trommeldrehzahl von 100 min-1 ca. 60 Sekunden. Im Minimum der Schwebung befinden sich Körperunwucht und Kugelschwerpunkt gegenüber und kompensieren sich.In the subcritical range, the slip between the weights and the body unbalance leads to the fact that two sinusoidal unbalance signals (the weights also represent an unbalance with an uneven distribution in the raceway) overlap with different frequencies and lead to a floating of the total unbalance signal (see Figure 2). The reason is that the unbalance of the body rotates at the speed of the body and the unbalance of the balls has a slightly lower speed due to the slippage. Since the speed difference is very small, the beat is low-frequency. In the example described below it is a washing machine drum at a drum speed of 100 min -1 for about 60 seconds. In the minimum of the beat, body imbalance and the center of gravity are opposite each other and compensate each other.
Bei Körpern mit vertikaler Drehachse kann der nicht-sinusförmige Drehzahlverlauf durch eine gezielte Regelung oder Steuerung erreicht werden, bei der vom Antrieb positive oder negative Beschleunigungsimpulse auf das rotierende System eingeprägt werden. Diese Impulse werden in vorteilhafter Weise derart abgegeben, dass sie periodisch auf das System einwirken. Durch solche gezielten Impulse kann (auch bei Körpern mit horizontaler Drehachse) die Dauer der Schwebung beeinflusst werden.For bodies with a vertical axis of rotation, the non-sinusoidal speed curve can be determined by a Targeted regulation or control can be achieved with the drive being positive or negative Acceleration impulses are impressed on the rotating system. These impulses will be advantageously released in such a way that they act periodically on the system. By Such targeted impulses can (even with bodies with a horizontal axis of rotation) the duration of the Beat can be affected.
Im folgenden ist das erfindungsgemäß ausgebildete Verfahren im Einsatz bei einer Trommelwaschmaschine beschrieben:In the following, the method designed according to the invention is used in a drum washing machine described:
Die Figur 4 zeigt anhand einer Schemaskizze die für die Erfindung wesentlichen Teile bei einer solchen Waschmaschine. Sie besitzt einen Laugenbehälter (1), in dem eine Trommel (2) zur Aufnahme von Wäsche (3) drehbar gelagert ist. Der Antrieb der Trommel (2) erfolgt über einen Motor (4), die Kraftübertragung über einen Keilriemen (5). Dabei kann die Drehzahl des Motors in bekannter Weise durch einen in der Mikroprozessor-Steuerung (6) der Waschmaschine integrierten Motorregler (6a) programm- und zustandsabhängig eingestellt werden.FIG. 4 shows the parts essential for the invention in a schematic diagram such washing machine. It has a tub (1) in which a drum (2) for Laundry (3) is rotatably mounted. The drum (2) is driven by a Motor (4), the power transmission via a V-belt (5). The speed of the motor in a known manner by a in the microprocessor control (6) of the washing machine integrated motor controller (6a) can be set depending on the program and status.
Der Laugenbehälter (1) ist an Federn (7) schwingend im Gehäuse (8) aufgehängt und wird zur Dämpfung dieser Schwingungen im unteren Bereich durch Stoßdämpfer (9) gegenüber dem Gehäuseboden (10) abgestützt. Zur weiteren Dämpfung der Schwingungen sind am Laugenbehälter (1) Zusatzgewichte (11) angeordnet, so dass er beim Durchfahren des kritischen Drehzahlbereichs nicht am Gehäuse (8) anschlägt.The tub (1) is suspended from springs (7) in the housing (8) and becomes a Damping of these vibrations in the lower area by shock absorbers (9) compared to Supported base (10). To further dampen the vibrations are on the tub (1) Additional weights (11) arranged so that it passes through the critical Speed range does not strike the housing (8).
In die Trommelkappe (im vorderen Trommelbereich, nicht dargestellt) und eventuell zusätzlich in den Trommelboden (im hinteren Trommelbereich, nicht dargestellt) ist als Auswuchtsystem ein sogenannter Kugelauswuchter eingesetzt. In dessen Laufbahn (12) sind einzelne Kugeln (13) als Gewichte angeordnet und können sich in Umfangsrichtung der Trommel frei bewegen. Um die maximale Kompensation zu gewährleisten, muss jede Laufbahn (12) in dichtester Packung in einem vorgegebenen Winkelbereich mit Kugeln gefüllt werden. Durch Festlegen der Größe und Anzahl der Kugeln (13) kann eine Unwucht in der Größenordnung ihres Gesamtgewichts erzeugt und somit auch kompensiert werden. Bei einseitig gelagerten Waschmaschinentrommeln (2), ist ein Kugelauswuchter an der Trommelkappe ausreichend. Unwuchtmassen im hinteren Teil der Trommel (2) haben nur einen kleinen Hebel, im vorderen Teil der Trommel (2) einen großen Hebelarm. Die Unwuchtkräfte werden von der Trommel (2) über die Lager (nicht dargestellt) an die schwingende Einheit (Laugenbehälter (1), Federn (7), Stoßdämpfer (9)) weitergegeben. Bei einem großen Drehmoment der Trommel (2) wird die gesamte Belastung der schwingenden Einheit steigen. Die Belastung ist also auf das Drehmoment und damit auf das Produkt von Unwuchtmasse, Beschleunigung und Hebelarm zurückzuführen. Es ist daher ausreichend, die Unwuchtmassen mit dem großen Hebelarm in der vorderen Trommelhälfte auszuwuchten.In the drum cap (in the front drum area, not shown) and possibly additionally in the drum base (in the rear drum area, not shown) is a balancing system a so-called ball balancer is used. There are individuals in his career (12) Balls (13) arranged as weights and can freely in the circumferential direction of the drum move. To ensure maximum compensation, each track (12) must be in tightest packing can be filled with balls in a given angular range. By Setting the size and number of balls (13) can cause an imbalance in the order of magnitude of their total weight are generated and thus also compensated. With one-sided Washing machine drums (2), a ball balancer on the drum cap is sufficient. Imbalance weights in the rear part of the drum (2) have only a small lever in the front Part of the drum (2) a large lever arm. The unbalance forces are from the drum (2) via the bearings (not shown) to the vibrating unit (tub (1), springs (7), Shock absorber (9)) passed on. With a large torque of the drum (2) total load on the vibrating unit increase. So the load is on the torque and thus on the product of unbalance mass, acceleration and lever arm due. It is therefore sufficient to have the unbalanced masses with the large lever arm the front half of the drum.
Damit bei horizontaler Rotationsachse die auf die Kugeln (13) wirkende Schwerkraft ab einer gewünschten Rotationsgeschwindigkeit überwunden wird und die Kugeln (13) von der Laufbahn (12) mitgenommen werden, ist diese mit einem viskosen Dämpfungsmittel (14) gefüllt, wobei vorteilhafterweise Öl verwendet wird. Ohne dieses Dämpfungsmittel (14) würden die Kugeln (13) lediglich der Rollreibung unterliegen und somit an der tiefsten Stelle der Laufbahn (12) abrollen, ohne ihre kompensatorische Wirkung zu entfalten. Es wird ein Öl mit sehr hoher Viskosität verwendet, so dass sichergestellt ist, dass die Kugeln (13) bereits bei Waschdrehzahlen um 50 min-1 mitgenommen werden. Sie erzeugen dann im unterkritischen Bereich eine mit der Trommel umlaufende Festunwucht B. Nach dem Durchgang durch den kritischen Drehzahlbereich verteilen sie sich, um die aus einer ungleichmäßigen Wäscheverteilung resultierende Wäscheunwucht B ganz oder mindestens teilweise zu kompensieren.So that the horizontal force of rotation overcomes the force of gravity on the balls (13) from a desired rotational speed and the balls (13) are carried along by the raceway (12), this is filled with a viscous damping agent (14), oil being used advantageously . Without this damping means (14), the balls (13) would only be subject to rolling friction and thus roll off at the lowest point in the raceway (12) without developing their compensatory effect. An oil with a very high viscosity is used so that it is ensured that the balls (13) are taken along at wash speeds of around 50 min -1 . They then generate a fixed unbalance B rotating around the drum in the subcritical area. After passing through the critical speed range, they are distributed in order to fully or at least partially compensate for the laundry unbalance B resulting from an uneven laundry distribution.
Ein Wegsensor (15), parallel zu einem Stoßdämpfer (9) angeordnet oder in diesem integriert, ermittelt die gewichtsabhängige Laugenbehälterabsenkung und übermittelt ein entsprechendes Signal an eine in der Mikroprozessor-Steuerung (6) integrierte Rechnerschaltung (6b). Die auf die Unwuchten A und B bzw. auf die daraus resultierende Gesamtunwucht C wirkende Zentrifugalkraft überlagert sich vektoriell der Gewichtskraft, so dass das Gewichtssignal unwuchtabhängigen periodischen Schwankungen ausgesetzt ist, die zur Unwuchtermittlung durch die Rechnerschaltung (6b) herangezogen werden können. Anstelle des Wegsensors (14) kann beispielsweise ein aus der DE 195 22 393 bekannter Beschleunigungssensor zur Unwuchtsensierung verwendet werden. Zusätzlich oder alternativ zu dieser Methode kann eine weitere Rechnerschaltung (6c) die Unwucht durch Auswertung der Schwankungen eines drehzahlabhängigen Signals (Motorstrom, Schlupf ...) oder der Drehzahl selbst (mit einem Tachogenerator (15)) ermitteln.A displacement sensor (15), arranged parallel to a shock absorber (9) or integrated in it, determines the weight-dependent lowering of the tub and sends a corresponding one Signal to a computer circuit (6b) integrated in the microprocessor control (6). The on the unbalances A and B or the centrifugal force acting on the resulting total unbalance C. vectorially overlaps the weight, so that the weight signal is unbalanced is exposed to periodic fluctuations, which are used to determine the imbalance by the Computer circuit (6b) can be used. Instead of the displacement sensor (14) for example an acceleration sensor known from DE 195 22 393 for unbalance sensing be used. In addition or as an alternative to this method, another Computer circuit (6c) the unbalance by evaluating the fluctuations of a speed-dependent Signals (motor current, slip ...) or the speed itself (with a tachometer generator (15)).
Eine in der Mikroprozessor-Steuerung integrierte Auswerteschaltung (6d) bereitet das während der Trommeldrehung gemessene Unwuchtsignal der Rechnerschaltung(en) (6b,c) derart auf, dass nur die Hüllkurve des Betrags des Unwuchtsignals ermittelt und zur weiteren Motorreglung ausgewertet wird (s. Figur 3).An evaluation circuit (6d) integrated in the microprocessor control prepares this during the unbalance signal of the computer circuit (s) (6b, c) measured in terms of the drum rotation, that only the envelope of the amount of the unbalance signal is determined and for further engine control is evaluated (see FIG. 3).
Das erfindungsgemäße Verfahren zum Auswuchten der Trommel einer Waschmaschine ist anhand eines Drehzahl-Zeit-Profils in Figur 5 dargestellt und arbeitet folgendermaßen:The method according to the invention for balancing the drum of a washing machine is based on of a speed-time profile shown in Figure 5 and works as follows:
Nach dem Waschvorgang erfolgt zunächst ein Abpumpen der Lauge aus dem Laugenbehälter (1). Anschließend wird der Schleuderhochlauf gestartet. Er beginnt mit dem Anfahren einer Messdrehzahl nMess1 oberhalb der Wäscheanlegedrehzahl nA, jedoch unterhalb der niedrigsten Resonanzdrehzahl nR1. Zur Vorentwässerung der Wäsche und zur genaueren Unwuchtsensierung kann direkt nach dem Verteilen der Wäsche am Trommelmantel (2c) die Drehzahl für einen kurzen Moment auf eine Entwässerungsdrehzahl nE erhöht werden, jedoch muss der Wert immer geringer als die niedrigste Resonanzdrehzahl nR1 sein. Die Drehzahl wird dann wieder auf die Messdrehzahl nMess1 abgesenkt.After the washing process, the liquor is first pumped out of the tub (1). Then the spin start is started. It starts with a measuring speed n Mess1 above the laundry application speed n A , but below the lowest resonance speed n R1 . For pre-dewatering of the laundry and for more precise imbalance detection, the speed can be increased for a short moment to a dewatering speed n E immediately after distributing the laundry on the drum jacket (2c), however, the value must always be lower than the lowest resonance speed n R1 . The speed is then reduced again to the measuring speed n Mess1 .
Nach dem erneuten Erreichen der Messdrehzahl nMess1 erfolgt das Sensieren der Gesamtunwucht C durch die Rechnerschaltung(en) (6b,c). Aus dem Unwuchtsignal wertet die Auswerteschaltung die Hüllkurve des Signalbetrags aus, um im Schwebungsminimum den Resonanzdurchgang zu starten. Hierzu wird der Schleuderhochlauf fortgesetzt und die Trommel (2) auf eine Drehzahl oberhalb der Resonanzfrequenz nR1 beschleunigt.After the measurement speed n measurement 1 has been reached again, the total unbalance C is sensed by the computer circuit (s) (6b, c). The evaluation circuit evaluates the envelope of the signal amount from the unbalance signal in order to start the resonance passage at the minimum beat. For this purpose, the spin-up is continued and the drum (2) is accelerated to a speed above the resonance frequency n R1 .
Die Schwebungsfrequenz (s. Figur 2) lässt sich durch starke periodische Beschleunigungsimpulse verringern, so dass die Dauer bis zum Durchgang durch das Schwebungsminimum zeitlich verkürzt wird.The beat frequency (see FIG. 2) can be determined by strong periodic acceleration pulses decrease so that the time to pass through the beating minimum is shortened in time.
In einer verbesserten Erweiterung des Verfahrens wird ein Startzeitpunkt für den Schleuderhochlauf gewählt, der vor dem Erreichen des Schwebungsminimums liegt. Da die Kugeln (13) durch den Schlupf bis zum Durchgang durch die Resonanzdrehzahlen weiterwandern und die Beschleunigung zur Schleuderdrehzahl selbst den Schlupf stark erhöht, kann so erreicht werden, dass zum Zeitpunkt des Durchfahrens der kritischen Drehzahl ein Minimum an Unwucht wirkt und damit die Auslenkung der schwingenden Einheit klein gehalten wird.In an improved extension of the method, a start time for the spin-up run is chosen, which is before reaching the beating minimum. Since the balls (13) through the slip to the passage through the resonance speeds and the Acceleration to the spin speed itself greatly increases the slip can be achieved be that at the time of driving through the critical speed a minimum of unbalance acts and thus the deflection of the vibrating unit is kept small.
Hierzu wird das erste Minimum der Hüllkurve sensiert und dieser Wert abgespeichert. Dann wartet die Auswerteschaltung (6d) solange, bis die Gesamtunwucht eine vom ersten Minimum, von der Gesamtbeladung, von der Wäscheart und vom Hochlaufverfahren abhängige Schwelle, die größer als das zunächst sensierte Minimum ist, unterschreitet. Danach beginnt der eigentliche Schleuderhochlauf durch die Resonanzdrehzahlen nRi.For this purpose, the first minimum of the envelope curve is sensed and this value is saved. Then the evaluation circuit (6d) waits until the total unbalance falls below a threshold which is dependent on the first minimum, on the total load, on the type of laundry and on the ramp-up method and which is greater than the minimum sensed at first. Then the actual spin-up starts due to the resonance speeds n Ri .
Eine schnellere Alternative hierzu ist die Berechnung eines Startzeitpunktes für den Schleuderhochlauf durch die Auswerteschaltung (6d), der vor dem ersten Schwebungsminimum liegt. Dieser Zeitpunkt ist abhängig vom Betriebspunkt (Lastzustand) der Waschmaschine und kann durch einen Algorithmus aus der Hüllkurve berechnet werden. Der optimale Punkt liegt im Bereich des Wendepunktes der Hüllkurve, in jedem Fall vor dem Erreichen des ersten Minimums.A faster alternative is to calculate a start time for the spin-up through the evaluation circuit (6d), which lies before the first beat minimum. This time depends on the operating point (load state) of the washing machine and can can be calculated from the envelope using an algorithm. The optimal point is in Range of the turning point of the envelope, in any case before reaching the first Minimums.
Eine weitere Verbesserung besteht darin, Wäscheunwuchten hinsichtlich Größe und/oder Position bewusst zu erzeugen. Die bisher bekannten Verfahren zum Anlegen der Wäsche verfolgen das Ziel, dieselbe möglichst gleichmäßig am Trommelmantel (2c) zu positionieren. Da sowohl die Wäscheart als auch die Wäschemenge durch Sensierung unterschiedlicher Parameter (z. B. Saugzeiten, Laugenbehälterabsenkung, etc.) als bekannt vorausgesetzt werden kann, lässt sich durch einen Drehzahlimpuls eine zur Kompensationskapazität der Kugeln (13) korrespondierende Wäscheunwucht erzeugen. In diesem Fall wird im Schwebungsminimum nahezu die gesamte Wäscheunwucht durch das Kugelkonglomerat kompensiert. Durch die gezielte Positionierung der Wäscheunwucht zum Kugelkonglomerat kann die Zeit bis zum Auffinden des Minimums erheblich verkürzt werden.Another improvement is laundry imbalance in size and / or position to generate consciously. Follow the previously known methods for putting on the laundry the goal is to position it as evenly as possible on the drum casing (2c). Because both the type of laundry as well as the amount of laundry by sensing different parameters (e.g. suction times, lowering of the tub, etc.) can be assumed to be known, can be by a speed pulse to the compensation capacity of the balls (13) generate corresponding laundry imbalance. In this case, the beating minimum almost the entire laundry imbalance is compensated by the ball conglomerate. Through the Targeted positioning of the laundry imbalance to the ball conglomerate can take the time up to Finding the minimum can be significantly shortened.
Zwecks weiterer Optimierung lassen sich diese Algorithmen auch zwischen den einzelnen Resonanzbereichen nRi wiederholen. Durch die geschickte Wahl des Hochlaufprofils kann der zwischen einzelnen Resonanzfrequenzen nRi liegende Wuchtbereich nmessi ebenfalls für die weitere Unwuchtminimierung genutzt werden.For further optimization, these algorithms can also be repeated between the individual resonance ranges n Ri . Through the skilful choice of the run-up profile, the balancing range n messi between individual resonance frequencies n Ri can also be used for further unbalance minimization .
Claims (8)
dadurch gekennzeichnet,
dass eine Auswerteschaltung (6d) die Hüllkurve des Betrags des Unwuchtsignals ermittelt und im Bereich ihres Minimums oder bei Unterschreiten eines Grenzwertes den Körper auf eine Drehzahl oberhalb seiner kritischen Drehzahl oder der kritischen Drehzahl seines Lagersystems beschleunigt.Method for balancing a body which is set in rotation by a controlled drive, using a balancing device consisting of at least one circular raceway (12) which rotates with the body and is arranged concentrically to its axis of rotation and is freely movable within the weights (13) and using an imbalance detection device (6b, c), which converts the unbalance-related deflections of the system consisting of the body and the balancing device during rotation and / or its unbalance-related fluctuations in speed into an unbalance signal, the system including in a first method step for unbalance detection is rotated at a speed below its critical speed or below the critical speed of its bearing system, and the balancing device is designed such that the weights (13) are carried along by the raceway (s) (12) at this speed,
characterized,
that an evaluation circuit (6d) determines the envelope of the amount of the unbalance signal and accelerates the body to a speed above its critical speed or the critical speed of its bearing system in the range of its minimum or if a limit value is undershot.
dadurch gekennzeichnet,
dass die Auswerteschaltung unter Berücksichtigung von Betriebsparametern einen Wert zum Starten der Beschleunigung auf eine Drehzahl oberhalb der kritischen Drehzahl des Körpers oder seines Lagersystems ermittelt, wobei der Wert vor dem Erreichen des ersten Minimums der Hüllkurve des Betrags des Unwuchtsignals liegt.A method of balancing a rotating body according to claim 1,
characterized,
that the evaluation circuit determines a value for starting the acceleration to a speed above the critical speed of the body or its bearing system, taking into account operating parameters, the value being before the first minimum of the envelope of the amount of the unbalance signal is reached.
dadurch gekennzeichnet,
dass auf den Antrieb wirkende Drehzahlstell- bzw. Regelungsmittel während einer vollständigen Umdrehung des Systems mindestens einen positiven oder negativen Beschleunigungsimpuls auf das System abgeben.Method for balancing a rotating body according to claim 1 or 2,
characterized,
that the speed control means acting on the drive emit at least one positive or negative acceleration pulse on the system during a complete revolution of the system.
dadurch gekennzeichnet,
dass die positiven oder negativen Beschleunigungsimpulse periodisch auf das System einwirken. Method for balancing a rotating body according to claim 3,
characterized,
that the positive or negative acceleration pulses affect the system periodically.
gekennzeichnet durch die Verwendung eines in der (den) Laufbahn(en) (12) angeordneten Mittels zur Erhöhung der Laufreibung der Gewichte oder des Strömungswiderstandes der Laufbahn(en).Method for balancing a body rotating about an approximately horizontal axis of rotation according to at least one of Claims 1 to 4,
characterized by the use of a means arranged in the track (s) (12) for increasing the running friction of the weights or the flow resistance of the track (s).
dadurch gekennzeichnet,
dass das Mittel zur Erhöhung des Strömungswiderstandes der Laufbahn(en) (12) aus einem viskosen Dämpfungsmittel (14) besteht, dessen Viskosität derart beschaffen ist, dass die Gewichte (13) in dem Drehzahlbereich, in dem die Unwuchterkennung erfolgt, mitgenommen werden.Method for balancing a body rotating about an approximately horizontal axis of rotation according to claim 5,
characterized,
that the means for increasing the flow resistance of the raceway (s) (12) consists of a viscous damping means (14), the viscosity of which is such that the weights (13) are taken along in the speed range in which the unbalance is detected.
dadurch gekennzeichnet,
dass die Unwuchterkennung oberhalb einer Drehzahl erfolgt, bei der die Wäsche durch Zentrifugalbeschleunigung am Trommelmantel (2c) anliegt (Anlegedrehzahl).Method for balancing the drum (2) of a drum washing machine according to at least one of claims 1 to 6,
characterized,
that the imbalance is detected above a speed at which the laundry is applied to the drum jacket (2c) by centrifugal acceleration (contact speed).
dadurch gekennzeichnet,
dass eine nach Größe und/oder Position vorgegebene Wäscheunwucht erzeugt wird.Method for balancing a drum (2) according to claim 7,
characterized,
that a laundry imbalance predetermined according to size and / or position is generated.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19952464A DE19952464C2 (en) | 1999-10-29 | 1999-10-29 | Method for balancing a rotating body which is set in rotation by a controlled drive, and use of the method |
DE19952464 | 1999-10-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1096050A2 true EP1096050A2 (en) | 2001-05-02 |
EP1096050A3 EP1096050A3 (en) | 2002-08-14 |
EP1096050B1 EP1096050B1 (en) | 2005-08-17 |
Family
ID=7927509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00122114A Expired - Lifetime EP1096050B1 (en) | 1999-10-29 | 2000-10-12 | Method for balancing rotating bodies |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1096050B1 (en) |
AT (1) | ATE302300T1 (en) |
DE (2) | DE19952464C2 (en) |
ES (1) | ES2244383T3 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1918447A1 (en) * | 2006-11-06 | 2008-05-07 | Samsung Electronics Co., Ltd. | Tub oscillation control method of drum type washing machine |
EP1950336A1 (en) | 2007-01-24 | 2008-07-30 | Samsung Electronics Co., Ltd. | Washing machine with balancers and control method thereof |
EP1921196A3 (en) * | 2006-11-06 | 2009-07-22 | Samsung Electronics Co., Ltd. | Ball balancer control method of washing machine |
EP2083109A1 (en) | 2008-01-22 | 2009-07-29 | Samsung Electronics Co., Ltd. | Drum type washing machine having ball balancers and controlling method of the same |
EP2000576A3 (en) * | 2007-06-05 | 2009-09-09 | Samsung Electronics Co., Ltd. | Washing machine and method of controlling the same |
WO2011025317A1 (en) * | 2009-08-27 | 2011-03-03 | Lg Electronics Inc. | Control method of laundry machine |
CN102510916A (en) * | 2009-08-27 | 2012-06-20 | Lg电子株式会社 | Control method of laundry machine |
EP2821538A1 (en) * | 2013-06-25 | 2015-01-07 | Whirlpool Corporation | Method of operation for a laundry treating appliance with a ball balance ring |
US9039786B2 (en) | 2009-08-27 | 2015-05-26 | Lg Electronics Inc. | Control method of laundry machine |
CN111621958A (en) * | 2019-02-28 | 2020-09-04 | Bsh家用电器有限公司 | Household appliance with ball balancer and fluid viscosity control |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10202252C1 (en) * | 2002-01-21 | 2003-03-20 | Miele & Cie | Speed regulation and control method, for washing machine, determines drum speed by evaluation of dynamic component of movement or acceleration signal for self-regulation of regulation and control unit |
DE10244426B4 (en) | 2002-09-24 | 2005-02-10 | Siemens Ag | processing machine |
DE102010053104B4 (en) | 2010-12-01 | 2012-12-13 | Diehl Ako Stiftung & Co. Kg | A laundry treating apparatus and method for controlling the operation of a laundry treating appliance |
AU2013204355B2 (en) | 2012-12-21 | 2016-10-27 | Fisher & Paykel Appliances Limited | Improved laundry appliance |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3421845A1 (en) * | 1984-06-13 | 1985-12-19 | Robert Bosch Gmbh, 7000 Stuttgart | Device for detecting the unbalance of a rotating body |
EP0347883A2 (en) * | 1988-06-23 | 1989-12-27 | Walter Dittel GmbH Luftfahrtgerätebau | Process and device for balancing rotating parts |
DE19522393A1 (en) * | 1995-06-23 | 1997-01-02 | Miele & Cie | Device and method for determining the imbalance in a drum washing machine |
DE19718321C1 (en) * | 1997-04-30 | 1998-10-29 | Miele & Cie | Process for balancing rotating bodies |
DE19857663A1 (en) * | 1997-12-20 | 1999-06-24 | Miele & Cie | Washing machine |
DE19842610A1 (en) * | 1997-12-10 | 1999-07-01 | Miele & Cie | Controlling spinning run-up in washing machine or dryer |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2069120C (en) * | 1992-05-21 | 2005-04-26 | Anton Gasafi | Weight compensating method and apparatus |
DE19506471C2 (en) * | 1995-02-24 | 1999-10-21 | Roland Schuehle | Process for the electronic determination and control of the quality of the alignment of coupled shafts and device for carrying it out |
IT1289380B1 (en) * | 1996-05-30 | 1998-10-02 | Electrolux Zanussi Elettrodome | WASHING MACHINE WITH PERFECTED DYNAMIC BALANCING PROCEDURE |
DE19804080B4 (en) * | 1998-02-03 | 2005-07-21 | AEG Hausgeräte GmbH | Method for redistributing laundry placed in a drum in a washing machine |
-
1999
- 1999-10-29 DE DE19952464A patent/DE19952464C2/en not_active Expired - Fee Related
-
2000
- 2000-10-12 EP EP00122114A patent/EP1096050B1/en not_active Expired - Lifetime
- 2000-10-12 DE DE50010961T patent/DE50010961D1/en not_active Expired - Lifetime
- 2000-10-12 AT AT00122114T patent/ATE302300T1/en not_active IP Right Cessation
- 2000-10-12 ES ES00122114T patent/ES2244383T3/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3421845A1 (en) * | 1984-06-13 | 1985-12-19 | Robert Bosch Gmbh, 7000 Stuttgart | Device for detecting the unbalance of a rotating body |
EP0347883A2 (en) * | 1988-06-23 | 1989-12-27 | Walter Dittel GmbH Luftfahrtgerätebau | Process and device for balancing rotating parts |
DE19522393A1 (en) * | 1995-06-23 | 1997-01-02 | Miele & Cie | Device and method for determining the imbalance in a drum washing machine |
DE19718321C1 (en) * | 1997-04-30 | 1998-10-29 | Miele & Cie | Process for balancing rotating bodies |
DE19842610A1 (en) * | 1997-12-10 | 1999-07-01 | Miele & Cie | Controlling spinning run-up in washing machine or dryer |
DE19857663A1 (en) * | 1997-12-20 | 1999-06-24 | Miele & Cie | Washing machine |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1918447A1 (en) * | 2006-11-06 | 2008-05-07 | Samsung Electronics Co., Ltd. | Tub oscillation control method of drum type washing machine |
EP1921196A3 (en) * | 2006-11-06 | 2009-07-22 | Samsung Electronics Co., Ltd. | Ball balancer control method of washing machine |
US7669267B2 (en) | 2006-11-06 | 2010-03-02 | Samsung Electronics Co., Ltd. | Ball balancer control method of washing machine |
EP1950336A1 (en) | 2007-01-24 | 2008-07-30 | Samsung Electronics Co., Ltd. | Washing machine with balancers and control method thereof |
EP2000576A3 (en) * | 2007-06-05 | 2009-09-09 | Samsung Electronics Co., Ltd. | Washing machine and method of controlling the same |
KR101287536B1 (en) * | 2007-06-05 | 2013-07-18 | 삼성전자주식회사 | Washing machine and control method thereof |
CN101319453B (en) * | 2007-06-05 | 2012-03-21 | 三星电子株式会社 | Washing machine and method of controlling the same |
EP2083109A1 (en) | 2008-01-22 | 2009-07-29 | Samsung Electronics Co., Ltd. | Drum type washing machine having ball balancers and controlling method of the same |
CN101492874B (en) * | 2008-01-22 | 2013-02-13 | 三星电子株式会社 | Drum type washing machine having ball balancers and controlling method of the same |
US8341787B2 (en) | 2008-01-22 | 2013-01-01 | Samsung Electronics Co., Ltd. | Drum type washing machine having ball balancers and controlling method of the same |
CN102575408A (en) * | 2009-08-27 | 2012-07-11 | Lg电子株式会社 | Control method of laundry machine |
EP2470707A1 (en) * | 2009-08-27 | 2012-07-04 | LG Electronics Inc. | Control method of laundry machine |
CN102510916A (en) * | 2009-08-27 | 2012-06-20 | Lg电子株式会社 | Control method of laundry machine |
WO2011025317A1 (en) * | 2009-08-27 | 2011-03-03 | Lg Electronics Inc. | Control method of laundry machine |
RU2497990C1 (en) * | 2009-08-27 | 2013-11-10 | Эл Джи Электроникс Инк. | Method of controlling machine for processing laundry |
EP2470707A4 (en) * | 2009-08-27 | 2014-12-03 | Lg Electronics Inc | Control method of laundry machine |
CN102575408B (en) * | 2009-08-27 | 2015-03-04 | Lg电子株式会社 | Control method of laundry machine |
EP2470704A4 (en) * | 2009-08-27 | 2015-03-04 | Lg Electronics Inc | Control method of laundry machine |
US9039786B2 (en) | 2009-08-27 | 2015-05-26 | Lg Electronics Inc. | Control method of laundry machine |
EP2821538A1 (en) * | 2013-06-25 | 2015-01-07 | Whirlpool Corporation | Method of operation for a laundry treating appliance with a ball balance ring |
US9493897B2 (en) | 2013-06-25 | 2016-11-15 | Whirlpool Corporation | Method of operation for a laundry treating appliance having a ball balance ring |
CN111621958A (en) * | 2019-02-28 | 2020-09-04 | Bsh家用电器有限公司 | Household appliance with ball balancer and fluid viscosity control |
CN111621958B (en) * | 2019-02-28 | 2023-12-12 | Bsh家用电器有限公司 | Household appliance with ball balancer and fluid viscosity control |
Also Published As
Publication number | Publication date |
---|---|
DE19952464C2 (en) | 2002-05-08 |
EP1096050B1 (en) | 2005-08-17 |
DE19952464A1 (en) | 2001-05-23 |
EP1096050A3 (en) | 2002-08-14 |
DE50010961D1 (en) | 2005-09-22 |
ES2244383T3 (en) | 2005-12-16 |
ATE302300T1 (en) | 2005-09-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2044254B1 (en) | Method for the control of a spinning cycle of a washing machine and a washing machine suitable for performing said method | |
EP2379786B1 (en) | Method for controlling a laundry distribution mode of a domestic appliance for caring for laundry items | |
EP1096050B1 (en) | Method for balancing rotating bodies | |
DE60116622T2 (en) | PREHEATING A WASHING MACHINE AT LOW SPEED | |
EP1067233B1 (en) | Method for measuring the load in a washing machine drum | |
EP2010705B1 (en) | Machine for washing and/or drying laundry | |
DE3822924C1 (en) | ||
DE10022609C2 (en) | Method for limiting the unbalance effect of a washing unit in a washing machine and device for carrying out the method | |
DE102006017530A1 (en) | Combined washing machine and spin drier has axle with multi-axis imbalance sensors linked to control unit | |
EP0878575B1 (en) | Method for balancing a rotating body | |
EP0750065B1 (en) | Device and method for determining the unbalance in a drum washing machine | |
EP2412864A2 (en) | Laundry treatment device | |
EP0924330B1 (en) | Drum washing machine or laundry drier and method for washing and spinning the laundry in a washing machine or in a washing and drying machine | |
EP3114268B1 (en) | Method for determining a loading weight of an oscillating system of a domestic appliance for treating items of laundry, and domestic appliance | |
EP2679714A2 (en) | Method and apparatus for detecting imbalance in a washing machine | |
DE19842611C2 (en) | Washer or washer dryer | |
EP0942196B1 (en) | Device for balancing rotating bodies | |
DE102014108856B3 (en) | Washing machine with imbalance compensation | |
DE60014191T2 (en) | Rotating machines with an imbalance of operation | |
DE102010053104B4 (en) | A laundry treating apparatus and method for controlling the operation of a laundry treating appliance | |
DE19842610A1 (en) | Controlling spinning run-up in washing machine or dryer | |
DE102014001676A1 (en) | Laundry treatment device with imbalance detection device and method for detecting an imbalance in a laundry treatment device | |
DE102017121864A1 (en) | Rolling bearing for storing a washing machine drum | |
DE102012210039A1 (en) | Control device, machine with rotor assembly and procedure for determining the tax code | |
WO2021197892A1 (en) | Method for operating a washing machine, and washing machine |
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: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
17P | Request for examination filed |
Effective date: 20030116 |
|
AKX | Designation fees paid |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MIELE & CIE. KG |
|
17Q | First examination report despatched |
Effective date: 20041011 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050817 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050817 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: KUKA, THORSTEN Inventor name: DYBALLA, CHRISTIAN, DR. Inventor name: HERDEN, RUDOLF Inventor name: GROSSE HUENDFELD, MAX Inventor name: HAPKE, ARMIN Inventor name: HAMBROCK, JUERGEN Inventor name: KAUFMANN, REINHARD Inventor name: MUELLER, HELGE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: PA ALDO ROEMPLER |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50010961 Country of ref document: DE Date of ref document: 20050922 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20051012 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20051003 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051031 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051031 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20051031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20051117 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20051117 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2244383 Country of ref document: ES Kind code of ref document: T3 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20060117 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
ET | Fr: translation filed | ||
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 |
Effective date: 20060518 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 746 Effective date: 20061020 |
|
BERE | Be: lapsed |
Owner name: MIELE & CIE. K.G. Effective date: 20051031 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PCAR Free format text: ALDO ROEMPLER PATENTANWALT;BRENDENWEG 11 POSTFACH 154;9424 RHEINECK (CH) |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20081023 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20081027 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20081023 Year of fee payment: 9 |
|
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: 9 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20100501 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
EUG | Se: european patent has lapsed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100501 |
|
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: 20091012 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091031 |
|
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: 20091013 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20141021 Year of fee payment: 15 Ref country code: ES Payment date: 20141024 Year of fee payment: 15 Ref country code: DE Payment date: 20141031 Year of fee payment: 15 Ref country code: GB Payment date: 20141024 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20141029 Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50010961 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20151012 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20160503 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151012 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151012 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20160630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151102 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20161129 |
|
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: 20151013 |