EP0754797B1 - Method and device for ascertaining the stop position of a toploading washing machine drum - Google Patents
Method and device for ascertaining the stop position of a toploading washing machine drum Download PDFInfo
- Publication number
- EP0754797B1 EP0754797B1 EP96401568A EP96401568A EP0754797B1 EP 0754797 B1 EP0754797 B1 EP 0754797B1 EP 96401568 A EP96401568 A EP 96401568A EP 96401568 A EP96401568 A EP 96401568A EP 0754797 B1 EP0754797 B1 EP 0754797B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stop
- pulses
- positioning
- motor
- drum
- 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
- D06F37/30—Driving arrangements
- D06F37/302—Automatic drum positioning
Definitions
- the present invention relates to a method of stationary positioning of a rotating part driven by a universal motor, particular of the drum of a top-loading washing machine, and to a device for implementing this method.
- a top-loading washing machine it is better than at any time during an operating cycle, especially at the end of the treatment cycle, generally after the last spin or after drying, the drum stops in such a way that its door is just in face of the upper opening of the machine, so that the user can remove or add laundry without having to turn the drum by hand.
- Drum positioning devices are known asynchronous motor, but these devices cannot be used with a so-called universal type motor, which is generally used in today's washing machines.
- the subject of the present invention is a positioning method when a rotating part stops, driven in rotation by a universal motor, in particular the drum of a top-loading washing machine, allowing to stop this drum so that its gate stops facing the upper opening of the machine (the one through which the laundry is introduced and in almost all use cases, the quickest possible.
- the present invention also relates to a device for implementation of this process, the device which is as inexpensive as possible.
- the process according to the invention consists in locating the point stopping the rotating part using an electrical output sensor, and from the start of the engine shutdown phase, cut off its power supply and to send it controlled current pulses, substantially regularly spaced, of increasing durations until detection of the shift to the stop point, then reverse the direction of rotation if the part does not did not stop at the desired position and send it to others substantially regularly spaced current pulses of durations increasing, and so on until stopping at the desired position.
- a second command is ordered positioning phase which applies another series to the motor pulses of increasing duration, with possible change of direction of rotation at each passage through the desired position, and we stop sending these pulses when the part is as close as possible to the position sought, or when this piece passes for the first time of this second phase by the position sought.
- the device for implementing the method of the invention applied to a machine comprising a rotary part driven in rotation by a universal motor includes a position or presence sensor, one of which first part is fixed on the rotating part and the second on the support of the rotating part, facing the first part when the rotating part is in the desired stop position, a processing circuit connected to one of the parts of the sensor, and an engine control device, connected to the sensor and comprising circuits for producing current pulses of duration variable.
- the present invention is described below with reference to a washing machine, but it is understood that it can be used in other types of machines or equipment requiring positioning precise when stopping rotating parts, for example a dryer top loading drum.
- FIG 1 only the parts of the washing machine are shown. necessary for understanding the invention, namely the pulley 1 of the machine drum, its universal drive motor 2, and the belt 3 which connects them.
- a magnet is attached to the pulley 1, near its edge 4, and a flexible blade switch 5 is fixed on the frame of the machine, so that it is right in front of magnet 4 and as close as possible to it when the door of the drum carrying the pulley 1 is just opposite the top opening of the washing machine.
- Switch 5 is connected to an input of a microprocessor 6.
- This microprocessor is either that equipping the machine, when this is the case, a processor dedicated to the function of positioning of the drum.
- the microprocessor 6 is connected to a circuit 7 of motor control 2.
- This circuit 7 is a power circuit which control, in a manner known per se, under the control of the microprocessor of the machine, where it exists, or an electromechanical programmer, different engine speeds (start, stop, reverse direction of rotation and different speeds).
- the microprocessor 6 also controls circuit 7 by sending it to motor 2 variable width current pulses, as described below.
- the microprocessor program 6 begins the drum positioning phase, for example after the last spin of the laundry contained in this drum.
- the drum has stopped so that the magnet 4 is far from the switch 5.
- This switch 5 is therefore open.
- the microprocessor 6 goes to a first subroutine which then controls the sending by the circuit 7 of controlled pulses (allowing speed regulation) to the motor 2.
- the first of these pulses is referenced I1.
- the duration of this pulse I1 is for example around 200 ms, and it makes the motor 2 rotate by a certain angle.
- I1 the magnet 4 is still distant from the switch 5.
- the microprocessor 6 commands, at time t2, the sending of a third pulse I3 to the motor 2.
- the magnet 4 passes in front of the switch 5 at the instant t3, but that the inertia of the motor + drum assembly causes the latter a little beyond the angular position d 'stop sought.
- the temporary closure of switch 5, taken into account by the microprocessor 6, passes it to a second subroutine which controls the reversal of the direction of rotation of the motor 2 and the sending, approximately 2 seconds after t3, at time t4, of a pulse I4 lasting approximately 200 ms.
- a pulse I4 lasting approximately 200 ms.
- the microprocessor 6 commands the sending of another pulse, similar to I2, and so on until the closure of switch 5. If this closure is the positioning program stops. Otherwise, said first subroutine is called again, and so on.
- the microprocessor can easily detect the passage of the magnet 4 in front of the switch 5, the speed of drum rotation is relatively low (e.g. less than 40 rpm), so that the impulse produced by the transient closure of the switch at the passage of the magnet has a sufficient width to be taken into account by the electronic circuits of the microprocessor.
- the positioning program may take a long time high to stop the drum at the right angular position, or even not there arrive.
- the invention provides, according to an advantageous aspect, for limit, for example to about one minute, the research phase.
Description
La présente invention se rapporte à un procédé de positionnement à l'arrêt d'une pièce rotative mue par un moteur universel, en particulier du tambour d'une machine à laver à chargement par le dessus, et à un dispositif de mise en oeuvre de ce procédé.The present invention relates to a method of stationary positioning of a rotating part driven by a universal motor, particular of the drum of a top-loading washing machine, and to a device for implementing this method.
Dans une machine à laver le linge à chargement par le dessus, il est préférable qu'à tout moment d'un cycle de fonctionnement, en particulier en fin de cycle de traitement, en général après le dernier essorage ou après séchage, le tambour s'arrête de telle façon que son portillon soit juste en face de l'ouverture supérieure de la machine, afin que l'utilisateur puisse retirer le linge ou en ajouter sans avoir à tourner le tambour à la main.In a top-loading washing machine, it is better than at any time during an operating cycle, especially at the end of the treatment cycle, generally after the last spin or after drying, the drum stops in such a way that its door is just in face of the upper opening of the machine, so that the user can remove or add laundry without having to turn the drum by hand.
On connaít des dispositifs de positionnement de tambour à moteur asynchrone, mais ces dispositifs ne peuvent pas être utilisés avec un moteur de type dit universel, qui équipe généralement les lave-linge actuels.Drum positioning devices are known asynchronous motor, but these devices cannot be used with a so-called universal type motor, which is generally used in today's washing machines.
On connaít par ailleurs des dispositifs de positionnement fonctionnant avec un moteur universel, ces dispositifs comportant soit des moyens de blocage mécanique du tambour, soit des capteurs à effet Hall, comme décrit par exemple dans le document DE-A-4 037 868. Ces solutions sont trop onéreuses pour pouvoir être mises en oeuvre dans des lave-linge fabriqués en grande série.We also know positioning devices operating with a universal motor, these devices comprising either mechanical locking means of the drum, i.e. Hall effect sensors, as described for example in document DE-A-4 037 868. These solutions are too expensive to be used in washing machines mass produced.
La présente invention a pour objet un procédé de positionnement à l'arrêt d'une pièce rotative, entraínée en rotation par un moteur universel, en particulier du tambour d'un lave-linge à chargement par le dessus, permettant d'arrêter ce tambour de façon que son portillon s'arrête face à l'ouverture supérieure de la machine (celle par laquelle on introduit le linge et on le sort) dans pratiquement tous les cas d'utilisation, le plus rapidement possible.The subject of the present invention is a positioning method when a rotating part stops, driven in rotation by a universal motor, in particular the drum of a top-loading washing machine, allowing to stop this drum so that its gate stops facing the upper opening of the machine (the one through which the laundry is introduced and in almost all use cases, the quickest possible.
La présente invention a également pour objet un dispositif de mise en oeuvre de ce procédé, dispositif qui soit le moins onéreux possible.The present invention also relates to a device for implementation of this process, the device which is as inexpensive as possible.
Le procédé conforme à l'invention consiste à repérer le point d'arrêt de la pièce rotative à l'aide d'un capteur à sortie électrique, et dès le début de la phase d'arrêt du moteur de la pièce, à couper son alimentation et à lui envoyer des impulsions de courant contrôlées, sensiblement régulièrement espacées, de durées croissantes jusqu'à détection du passage au point d'arrêt, puis à inverser le sens de rotation si la pièce ne s'est pas arrêtée à la position recherchée et à lui envoyer d'autres impulsions de courant sensiblement régulièrement espacées, de durées croissantes, et ainsi de suite jusqu'à l'arrêt à la position recherchée. Si, au bout d'un laps de temps déterminé après le début de la phase d'arrêt, on n'obtient pas l'arrêt à la position recherchée, on commande une deuxième phase de positionnement qui applique au moteur une autre série d'impulsions de durées croissantes, avec éventuellement changement de sens de rotation à chaque passage par la position recherchée, et on arrête l'envoi de ces impulsions lorsque la pièce est au plus près possible de la position recherchée, ou bien lorsque cette pièce passe pour la première fois de cette deuxième phase par la position recherchée.The process according to the invention consists in locating the point stopping the rotating part using an electrical output sensor, and from the start of the engine shutdown phase, cut off its power supply and to send it controlled current pulses, substantially regularly spaced, of increasing durations until detection of the shift to the stop point, then reverse the direction of rotation if the part does not did not stop at the desired position and send it to others substantially regularly spaced current pulses of durations increasing, and so on until stopping at the desired position. If at after a determined period of time after the start of the shutdown phase, we does not obtain the stop at the desired position, a second command is ordered positioning phase which applies another series to the motor pulses of increasing duration, with possible change of direction of rotation at each passage through the desired position, and we stop sending these pulses when the part is as close as possible to the position sought, or when this piece passes for the first time of this second phase by the position sought.
Le dispositif de mise en oeuvre du procédé de l'invention appliqué à une machine comportant une pièce rotative entraínée en rotation par un moteur universel, comprend un capteur de position ou de présence dont une première partie est fixée sur la pièce rotative et la deuxième sur le support de la pièce rotative, face à la première partie lorsque la pièce rotative est dans la position d'arrêt recherchée, un circuit de traitement relié à l'une des parties du capteur, et un dispositif de commande du moteur, relié au capteur et comprenant des circuits de production d'impulsions de courant à durée variable.The device for implementing the method of the invention applied to a machine comprising a rotary part driven in rotation by a universal motor, includes a position or presence sensor, one of which first part is fixed on the rotating part and the second on the support of the rotating part, facing the first part when the rotating part is in the desired stop position, a processing circuit connected to one of the parts of the sensor, and an engine control device, connected to the sensor and comprising circuits for producing current pulses of duration variable.
La présente invention sera mieux comprise à la lecture de la description détaillée d'un mode de réalisation, pris à titre d'exemple non limitatif et illustré par le dessin annexé, sur lequel :
- la figure 1 est une vue schématique simplifiée d'un lave-linge conforme à l'invention;
- la figure 2 est un exemple de chronogramme de signaux relevés dans la machine de la figure 1, dans des conditions normales,
- la figure 3 est un autre exemple de chronogramme de signaux relevés dans la machine de la figure 1 en présence d'un fort balourd de linge dans cette machine.
- Figure 1 is a simplified schematic view of a washing machine according to the invention;
- FIG. 2 is an example of a timing diagram of signals recorded in the machine of FIG. 1, under normal conditions,
- Figure 3 is another example of a timing diagram of signals detected in the machine of Figure 1 in the presence of a strong imbalance of laundry in this machine.
La présente invention est décrite ci-dessous en référence à un lave-linge, mais il est bien entendu qu'elle peut être mise en oeuvre dans d'autres types de machines ou d'équipements nécessitant un positionnement précis à l'arrêt de pièces entraínées en rotation, par exemple un sèche-linge à tambour à chargement par le dessus.The present invention is described below with reference to a washing machine, but it is understood that it can be used in other types of machines or equipment requiring positioning precise when stopping rotating parts, for example a dryer top loading drum.
Sur la figure 1, on a uniquement représenté les parties du lave-linge
nécessaires à la compréhension de l'invention, à savoir la poulie 1 du
tambour de la machine, son moteur d'entraínement universel 2, et la
courroie 3 qui les relie. On fixe sur la poulie 1, près de son bord, un aimant
4, et on fixe sur le bâti de la machine un interrupteur à lame souple 5, de
façon qu'il se trouve juste face à l'aimant 4 et le plus près possible de celui-ci
lorsque le portillon du tambour portant la poulie 1 est juste en face de
l'ouverture supérieure du lave-linge. L'interrupteur 5 est relié à une entrée
d'un microprocesseur 6. Ce microprocesseur est soit celui équipant la
machine, lorsque tel est le cas, soit un processeur dédié à la fonction de
positionnement du tambour. Le microprocesseur 6 est relié à un circuit 7 de
commande du moteur 2. Ce circuit 7 est un circuit de puissance qui
commande, de façon connue en soi, sous le contrôle du microprocesseur de
la machine, lorsqu'il existe, ou d'un programmateur électromécanique, les
différents régimes du moteur (marche, arrêt, inversion de sens de rotation et
différentes vitesses). Pour les besoins de l'invention, le microprocesseur 6
contrôle également le circuit 7 en lui faisant envoyer au moteur 2 des
impulsions de courant à largeur variable, de la façon décrite ci-dessous.In Figure 1, only the parts of the washing machine are shown.
necessary for understanding the invention, namely the
En référence à la figure 2, supposons qu'à un instant to le
programme du microprocesseur 6 débute la phase de positionnement du
tambour, par exemple après le dernier essorage du linge contenu dans ce
tambour. Supposons qu'à cet instant to le tambour se soit arrêté de façon
que l'aimant 4 soit loin de l'interrupteur 5. Cet interrupteur 5 est donc ouvert.
Le microprocesseur 6 passe à un premier sous-programme qui commande
alors l'envoi par le circuit 7 d'impulsions contrôlées (permettant une
régulation de vitesse) au moteur 2. La première de ces impulsions est
référencée I1. La durée de cette impulsion I1 est par exemple de 200 ms
environ, et elle fait tourner le moteur 2 d'un certain angle. Supposons
qu'après I1, l'aimant 4 soit encore éloigné de l'interrupteur 5. Au bout d'un
laps de temps d'environ 1s après I1, suffisant pour permettre au tambour de
se stabiliser à l'arrêt, le microprocesseur 6 commande l'envoi à l'instant t1
par le circuit 7 d'une deuxième impulsion I2 de durée 200 + 200 = 400 ms
environ. Supposons qu'à la suite de I2 le tambour se stabilise à l'arrêt sans
que l'aimant 4 ne passe devant l'interrupteur 5. Au bout d'un laps de temps
d'environ 1s après I2, le microprocesseur 6 commande, à l'instant t2, l'envoi
d'une troisième impulsion I3 au moteur 2. La progression des durées des
impulsions étant arithmétique, de raison 200 ms environ, la durée de 13 est
donc de 400 + 200 = 600 ms environ. Supposons que peu après l'envoi de
I3 l'aimant 4 passe devant l'interrupteur 5 à l'instant t3, mais que l'inertie de
l'ensemble moteur + tambour entraíne ce dernier un peu au-delà de la
position angulaire d'arrêt recherchée.Referring to Figure 2, suppose that at an instant t o the
La fermeture passagère de l'interrupteur 5, prise en compte par le
microprocesseur 6, le fait passer à un deuxième sous-programme qui
commande l'inversion du sens de rotation du moteur 2 et l'envoi, environ 2
secondes après t3, à l'instant t4, d'une impulsion I4 d'une durée d'environ
200 ms. On suppose que peu de temps après t4, à l'instant t5, lorsque le
tambour se stabilise à l'arrêt, l'aimant 4 est en face de l'interrupteur 5 qui se
ferme définitivement. Dans ce cas, le microprocesseur 6 met fin au
programme de positionnement, et peut avantageusement signaler ce fait en
commandant l'allumage d'un voyant approprié.The temporary closure of switch 5, taken into account by the
Si, après I4, l'aimant 4 n'arrive pas jusqu'à l'interrupteur 5, le
microprocesseur 6 commande l'envoi d'une autre impulsion, similaire à I2, et
ainsi de suite jusqu'à la fermeture de l'interrupteur 5. Si cette fermeture est
définitive, le programme de positionnement s'arrête. Sinon, ledit premier
sous-programme est appelé à nouveau, et ainsi de suite.If, after I4, the magnet 4 does not reach the switch 5, the
Pour que le microprocesseur puisse facilement détecter le passage de l'aimant 4 devant l'interrupteur 5, il faut que la vitesse de rotation du tambour soit relativement basse (par exemple inférieure à 40t/mn), afin que l'impulsion produite par la fermeture transitoire de l'interrupteur au passage de l'aimant ait une largeur suffisante pour être prise en compte par les circuits électroniques du microprocesseur.So that the microprocessor can easily detect the passage of the magnet 4 in front of the switch 5, the speed of drum rotation is relatively low (e.g. less than 40 rpm), so that the impulse produced by the transient closure of the switch at the passage of the magnet has a sufficient width to be taken into account by the electronic circuits of the microprocessor.
Si le linge contenu dans le tambour y est mal réparti et présente un balourd élevé, le programme de positionnement peut mettre un temps élevé à arrêter le tambour à la bonne position angulaire, ou même ne pas y arriver. Pour éviter ceci, l'invention prévoit, selon un aspect avantageux, de limiter, par exemple à une minute environ, la phase de recherche. Au bout de ce laps de temps, si le positionnement recherché n'est pas obtenu, on peut soit arrêter momentanément le programme de positionnement décrit ci-dessus et commander une courte phase de re-répartition de linge dans le tambour (quelques rotations lentes alternées suivies d'une courte rotation à vitesse élevée, par exemple) et commander aussitôt une seconde phase de répartition, similaire à la première, soit passer aussitôt à une seconde phase de répartition, et se contenter en cas de deuxième échec, d'un positionnement approximatif, c'est-à-dire un arrêt à ± 10° environ de la position recherchée. Dans cette limite angulaire, l'utilisateur peut apercevoir le portillon du tambour à travers l'ouverture supérieure de la machine, et tourner à la main le tambour pour l'amener à la position désirée. Un tel cas est illustré en figure 3 où, à la fin de la première phase de positionnement P1, d'une durée d'environ une minute, se terminant à l'instant T'1, la position désirée n'est pas obtenue. Aussitôt après commence la phase suivante P2. A l'instant T'2, l'interrupteur S se ferme transitoirement, c'est-à-dire que le tambour dépasse légèrement le point d'arrêt désiré. Le programme de positionnement est aussitôt arrêté, car il y a alors de fortes probabilités que le tambour ait dépassé de peu le point d'arrêt désiré.If the laundry in the drum is poorly distributed and present a high imbalance, the positioning program may take a long time high to stop the drum at the right angular position, or even not there arrive. To avoid this, the invention provides, according to an advantageous aspect, for limit, for example to about one minute, the research phase. At the end of this period of time, if the desired positioning is not obtained, we can either temporarily stop the positioning program described above and order a short phase of re-distribution of laundry in the drum (some slow alternating rotations followed by a short rotation at high speed, for example) and immediately order a second phase of distribution, similar to the first, or immediately pass to a second phase distribution, and settle for a second failure, a approximate positioning, i.e. a stop at about ± 10 ° from the position sought. Within this angular limit, the user can see the drum door through the upper opening of the machine, and turn the drum by hand to bring it to the desired position. Such a case is illustrated in Figure 3 where, at the end of the first positioning phase P1, lasting approximately one minute, ending at time T'1, the position desired is not obtained. Immediately afterwards begins the next phase P2. At time T'2, the switch S closes temporarily, that is to say that the drum slightly exceeds the desired breakpoint. The program of positioning is immediately stopped, because there is then a strong probability that the drum has just passed the desired stopping point.
Claims (11)
- Method for positioning the stop point of a rotary part (1), rotated by a universal motor (2), whereby the stop point of the rotary part is identified using a sensor (4, 5) with an electrical output, characterized in that this method consists, as soon as the phase of stopping the motor of the part begins, in cutting off its power supply and sending it controlled and approximately uniformly spaced current pulses (I1, I2, I3) of increasing duration, until passage through the stop point is detected, then in reversing the direction of rotation if the part has not stopped at the desired position, and sending it other approximately uniformly spaced current pulses (I4), of increasing duration, and so on until the part stops at the desired position.
- Method according to Claim 1, characterized in that if, after a certain period of time has elapsed since the start of the stop phase, the part does not stop in the desired position, a second positioning phase is commanded and this applies another series of controlled pulses of increasing duration to the motor, and the sending of these pulses is stopped when the part passes through the desired position.
- Method according to Claim 1, characterized in that if, after a certain period of time has elapsed since the start of the stop phase, the part does not stop in the desired position, a second positioning phase is commanded and this applies another series of controlled pulses of increasing duration to the motor, with a change in direction of rotation upon each passage through the desired position, and the sending of these pulses is stopped when the part is as close as possible to the desired position.
- Method according to one of Claims 1, 2 and 3, characterized in that the current pulses have respective durations of about 200 ms, 400 ms, 600 ms, etc., in an arithmatic progression with a difference of 200 ms.
- Method according to one of the preceding claims, characterized in that the pulses are spaced about is apart.
- Method according to one of Claims 2 to 5, characterized in that the said certain amount of time is about 1 min.
- Method according to one of the preceding claims, characterized in that the first pulse (I4) sent out following detection of passage through the desired stop position, without stopping in this position, is sent out about 2s after this detection.
- Method according to one of Claims 2 to 7, for application to a washing machine, the rotary part of which is its drum, characterized in that if the laundry contained in its drum is significantly out of balance, a stage of re-distributing laundry is performed before the second positioning phase is commanded.
- Device for positioning the stop point of a rotary part (1) rotated by a universal motor (2), comprising a position or presence sensor, a first part (4) of which is fixed to the rotary part and the second part (5) of which is fixed to the support of the rotary part, facing the first part when the rotary part is in the desired stop position, and a processing circuit (6) connected to one of the parts of the sensor, characterized in that it includes a device (7) for operating the motor, this device being connected to the sensor and comprising circuits for producing variable-length current pulses.
- Device according to Claim 9, characterized in that the position or presence sensor comprises a magnet (4) and a flexible-blade switch (5).
- Washing machine, characterized in that it comprises a device for positioning the drum according to Claim 9 or 10.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9508863 | 1995-07-21 | ||
| FR9508863A FR2736943B1 (en) | 1995-07-21 | 1995-07-21 | STOPPING POSITIONING PROCESS OF A ROTATING PART MOVED BY A UNIVERSAL MOTOR, IN PARTICULAR OF THE DRUM OF A WASHING MACHINE LOADING FROM ABOVE, AND IMPLEMENTATION DEVICE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0754797A1 EP0754797A1 (en) | 1997-01-22 |
| EP0754797B1 true EP0754797B1 (en) | 2000-11-02 |
Family
ID=9481234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96401568A Expired - Lifetime EP0754797B1 (en) | 1995-07-21 | 1996-07-16 | Method and device for ascertaining the stop position of a toploading washing machine drum |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0754797B1 (en) |
| DE (1) | DE69610799T2 (en) |
| ES (1) | ES2151643T3 (en) |
| FR (1) | FR2736943B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1303116B1 (en) * | 1998-10-09 | 2000-10-30 | Elbi Int Spa | POSITION SENSOR DEVICE FOR THE BASKET OF A MACHINE FOR LINEN TREATMENT. |
| ES2202999T5 (en) * | 1999-12-23 | 2008-12-16 | DIEHL AKO STIFTUNG & CO. KG | PROCEDURE FOR POSITIONING A WASHING DRUM OF A WASHER IN AN OBJECTIVE POSITION. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2522343A1 (en) * | 1982-02-26 | 1983-09-02 | Thomson Brandt | Top loading washing machine with automatic braking of horizontal drum - to ensure alignment of drum and casing loading hatches |
| DE3707218A1 (en) * | 1987-03-06 | 1988-09-15 | Licentia Gmbh | Method for the positioning of the laundry drum of a casing-loadable drum-type washing machine |
| IT1228362B (en) * | 1989-03-13 | 1991-06-14 | Eurodomestici Ind Riunite | METHOD AND DEVICE FOR LOCKING THE BASKET OF A TOP-LOADING TYPE WASHING MACHINE IN AN APPROPRIATE POSITION. |
| ES2026381A6 (en) * | 1989-11-28 | 1992-04-16 | Bosch Siemens Hausgeraete | Drum washing machine with drum drive motor - in which rotor is coupled to tachogenerator |
| FR2656010B1 (en) * | 1989-12-15 | 1992-02-28 | Ciapem | PROCESS FOR STOPPING A DRUM OF A WASHING MACHINE PUTTING THE DRUM GATE IN FRONT OF THE WASHING MACHINE AND WASHING MACHINE IMPLEMENTING SUCH A PROCESS. |
-
1995
- 1995-07-21 FR FR9508863A patent/FR2736943B1/en not_active Expired - Fee Related
-
1996
- 1996-07-16 ES ES96401568T patent/ES2151643T3/en not_active Expired - Lifetime
- 1996-07-16 DE DE69610799T patent/DE69610799T2/en not_active Expired - Fee Related
- 1996-07-16 EP EP96401568A patent/EP0754797B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2736943B1 (en) | 1997-08-22 |
| FR2736943A1 (en) | 1997-01-24 |
| DE69610799T2 (en) | 2001-04-26 |
| EP0754797A1 (en) | 1997-01-22 |
| ES2151643T3 (en) | 2001-01-01 |
| DE69610799D1 (en) | 2000-12-07 |
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