EP2251478A1 - Washing machine with a lye container and a registration device - Google Patents

Washing machine with a lye container and a registration device Download PDF

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Publication number
EP2251478A1
EP2251478A1 EP09006568A EP09006568A EP2251478A1 EP 2251478 A1 EP2251478 A1 EP 2251478A1 EP 09006568 A EP09006568 A EP 09006568A EP 09006568 A EP09006568 A EP 09006568A EP 2251478 A1 EP2251478 A1 EP 2251478A1
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EP
European Patent Office
Prior art keywords
lever
tub
joint
washing machine
magnet
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
Application number
EP09006568A
Other languages
German (de)
French (fr)
Other versions
EP2251478B1 (en
Inventor
Rainer Bicker
Benedikt Fechtel
Michael Finke
Matthias Hollenhorst
Helge Müller
Klaus Rocklage
Ralf Templin
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Miele und Cie KG
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Miele und Cie KG
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Priority to EP09006568A priority Critical patent/EP2251478B1/en
Priority to ES09006568T priority patent/ES2393432T3/en
Priority to PL09006568T priority patent/PL2251478T3/en
Publication of EP2251478A1 publication Critical patent/EP2251478A1/en
Application granted granted Critical
Publication of EP2251478B1 publication Critical patent/EP2251478B1/en
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    • 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
    • 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
    • D06F34/18—Condition of the laundry, e.g. nature or weight

Definitions

  • the invention relates to a washing machine with a housing, with a swing-mounted in the housing tub with a rotatably mounted therein drum with an at least approximately horizontal axis of rotation, which is driven by a motor and a detection device for detecting the position and / or the position of the tub in the housing, which comprises a magnetic field sensor fixed to the housing with a corresponding magnet which is adapted to detect the flux density and the direction of the magnetic field emanating from the magnet.
  • Known drum washing machines have a tub suspended in the housing suspended in the tub, in which a horizontally rotatable drum is mounted.
  • the tub is due to the laundry or imbalance in vibration, which intercepted as well as possible due to the resilient suspension and additional damping or not transferred to the housing or the floor.
  • the swing of the tub must be monitored so that at the risk of excessive vibration, the washing motion or the spin cycle can be stopped so that no damage caused by a collision of the tub with the housing or other component.
  • the laundry weight or an imbalance can be determined on the basis of the vibration behavior, so that compensatory measures, such as a redistribution of the laundry, can be made.
  • a washing machine which has a detection device for detecting the position and / or the position of the tub in the housing.
  • the detection device comprises a magnet attached to the movable tub, which is in operative connection with a sensor fixed relative to the housing.
  • the sensor is set up to determine the direction of the magnetic field in addition to the flux density of the magnetic field.
  • the sensor is not coupled to the magnet, so that it can happen that, in the event of an unfavorable movement of the tub, the magnet leaves the effective range of the sensor. This would lead to erroneous sensations, so that unnecessary measures for unbalance limitation would be initiated. In the worst case, strong movements could not be detected early as such, which would lead to unwanted strong vibrations.
  • the invention is therefore an object of the invention to provide a laundry treatment machine, in which the detection of deflections of the tub is simple and reliable.
  • the achievable with the invention advantages are that a very accurate detection of the position and position of the tub is provided so that purposefully adapted measures to limit the deflections of the tub can be initiated.
  • the magnetic field sensor is fixedly or essentially fixedly assigned to the housing, the magnet associated with the magnetic field sensor being mounted in a joint associated with the sensor, which is in operative connection with the tub by means of a lever mechanism.
  • the lever mechanism is adapted to transmit a movement or position change of the tub to the magnet.
  • the lever mechanism comprises a first lever, which is coupled to the tub with a first joint, and a second lever, which is coupled at a first end to the first lever by means of a second articulation and with its second end, the sensor-side third Joint forms with the magnet attached to the third joint. Due to the multi-joint structure of the lever mechanism a flat-building unit is provided with high precision.
  • the third joint is a ball joint, which comprises a lever mounted on the ball, which is held in a corresponding, fixed relative to the housing pan, wherein the magnet is attached to the ball so that it is in the effective range of Sensor is located.
  • the second joint it is advantageous to form this for coupling the second end of the first lever with the first end of the second lever as a ball joint or as a universal joint. This allows a good adaptation of the deflections of the tub to the movement of the ball can be achieved with the sensor.
  • the first joint for coupling the first end of the first lever to the tub is a rotary joint whose axis of rotation is substantially perpendicular to the tub wall in the coupling region. This ensures that linear movements of the tub are optimally transmitted to the ball with the magnet mounted there.
  • the washing machine has a guide element for limiting the distance of the first lever and / or the second lever to the tub wall. This ensures that even with strong vibrations, the levers do not leave the given range of motion.
  • the coupling to the tub is formed with a guide element in which the first lever is guided displaceably.
  • a cam for engagement in a corresponding groove in the pan, which is adapted to act as a rotation for limiting the Verschwenkweges and / or the pivoting of the lever.
  • FIG. 1 shows in a sketched view of a washing machine 1 in operating position, which includes a housing 2 with a swingably mounted therein tub 4.
  • the tub 4 is suspended by means of indicated spring elements 15 swingably in the housing 2 and damped by means of damper 16 with respect to its movement.
  • a rotatable drum 3 is arranged with an at least approximately horizontal axis of rotation 6.
  • the drum 3 is drivable with a motor 5, so that the rotational movement is provided during washing or spinning.
  • the washing machine 1 further comprises a detection device 7 for detecting the position and / or position and / or the movement of the tub 4 relative to the housing 2.
  • the detection device 7 comprises a magnetic field sensor 8, which is fixed relative to the housing 2.
  • a magnet 9 is arranged in the effective range of the sensor 8, which can be moved by means of the lever mechanism 11, wherein the movement is caused by the oscillation or change in position of the tub 4.
  • the lever mechanism 11 consists of a first lever 12 which is coupled to the first joint 10 on the tub 4.
  • the first joint 10 is in this case designed as a rotary joint whose axis of rotation 17 is perpendicular to the tub wall, in this case the end wall 21.
  • a second lever 13 is coupled by means of the second joint 14, which is designed here as a ball joint, whose end is connected to the third joint 15, which carries the magnet.
  • the third joint 15 is formed here as a ball joint, wherein the lever end forms the ball 15a, on which the magnet 9 is fixed.
  • the ball socket 15b is fixed to the housing fixed to a carrier 23.
  • the magnetic field sensor 8 Arranged on the carrier 23 is the magnetic field sensor 8, which is set up to detect the strength of the magnetic field and the direction of the field lines of the magnetic field emanating from the
  • Fig. 2 shows an embodiment of the washing machine, in which the first lever 12 of the lever mechanism 11 is coupled to a guide member 18 on the tub.
  • the second lever 13 can be coupled longitudinally to the first lever 12 with the second hinge 10, wherein the length compensation is provided due to different positions of the tub relative to the housing by the displaceability in the longitudinal direction of the first lever in the guide element.
  • the first lever is coupled in this embodiment to the shell-side container wall 22.
  • Fig. 3 shows in plan view an embodiment of the lever mechanism similar to Fig. 1 ,
  • the first lever is coupled by means of the first rotary joint 10 on the shell-side container wall 22.
  • the first lever 12 is positioned at an angle, in this case approximately at a right angle R, to the second lever 13, so that the length compensation due to changes in position of the tub 4 is provided by means of an angular change.
  • the carrier 23 is provided in addition to the sensor 8 with an electronic circuit arrangement which carries out a processing of the sensor signal for the control (not shown) of the washing machine 1.
  • Fig. 4 shows in detail a sectional view of a ball joint 15 in which the ball 15a is provided with a cam 19 which engages in a corresponding groove 20 in the socket 15b.
  • the groove 20 acts as a cam for the cam 19 and serves as anti-rotation.
  • Fig. 5 shows in detail the rotary joint 10, wherein the axis of rotation 17 is formed by means of a film hinge 17a.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

The machine (1) has a lye container (4) oscillatingly fastened in a housing (2). A detecting device (7) detects a position and/or an orientation of the container in the housing. A magnetic field sensor (8) is fixedly arranged in the housing and detects flow density and direction of magnetic field produced by a magnet (9). The magnet is fitted in a joint (15) i.e. ball joint, which is associated to the sensor and operatively connected with the container by a lever mechanism (11). The lever mechanism transfers a movement or a position change of the container to the magnet.

Description

Die Erfindung betrifft eine Waschmaschine mit einem Gehäuse, mit einem in dem Gehäuse schwingend befestigten Laugenbehälter mit einer darin drehbar angeordneten Trommel mit einer wenigstens annähernd horizontalen Drehachse, die mittels eines Motors antreibbar ist und einer Erfassungseinrichtung zur Erfassung der Position und/oder der Lage des Laugenbehälters in dem Gehäuse, die einen am Gehäuse befestigten Magnetfeldsensor mit einem korrespondierenden Magneten umfasst, der dazu eingerichtet ist, die Flussdichte und die Richtung des vom Magneten ausgehenden Magnetfeldes zu erfassen.The invention relates to a washing machine with a housing, with a swing-mounted in the housing tub with a rotatably mounted therein drum with an at least approximately horizontal axis of rotation, which is driven by a motor and a detection device for detecting the position and / or the position of the tub in the housing, which comprises a magnetic field sensor fixed to the housing with a corresponding magnet which is adapted to detect the flux density and the direction of the magnetic field emanating from the magnet.

Bekannte Trommelwaschmaschinen besitzen einen im Gehäuse schwingbeweglich aufgehängten Laugenbehälter, in dem eine horizontal drehbare Trommel gelagert ist. Beim Betrieb der Waschmaschine gerät der Laugenbehälter aufgrund des Wäschefalls oder Unwuchten in Schwingung, die aufgrund der federnden Aufhängung und einer zusätzlichen Dämpfung möglichst gut abgefangen bzw. nicht auf das Gehäuse oder den Boden übertragen werden. Das Schwingen des Laugenbehälters muss jedoch überwacht werden, damit bei der Gefahr von zu großen Schwingungen die Waschbewegung oder der Schleudergang gestoppt werden kann, damit keine Schäden durch eine Kollision des Laugenbehälters mit dem Gehäuse oder einem anderen Bauteil entstehen. Ferner kann anhand des Schwingverhaltens das Wäschegewicht oder eine Unwucht ermittelt werden, so dass ausgleichende Maßnahmen, wie eine Neuverteilung der Wäsche, vorgenommen werden können.Known drum washing machines have a tub suspended in the housing suspended in the tub, in which a horizontally rotatable drum is mounted. During operation of the washing machine, the tub is due to the laundry or imbalance in vibration, which intercepted as well as possible due to the resilient suspension and additional damping or not transferred to the housing or the floor. However, the swing of the tub must be monitored so that at the risk of excessive vibration, the washing motion or the spin cycle can be stopped so that no damage caused by a collision of the tub with the housing or other component. Furthermore, the laundry weight or an imbalance can be determined on the basis of the vibration behavior, so that compensatory measures, such as a redistribution of the laundry, can be made.

Aus der DE 20 2007 002 626 U1 ist eine Waschmaschine bekannt, die eine Erfassungseinrichtung zur Erfassung der Position und/oder der Lage des Laugenbehälters in dem Gehäuse besitzt. Die Erfassungseinrichtung umfasst einen am beweglichen Laugenbehälter angebrachten Magneten, der in Wirkverbindung mit einem relativ zum Gehäuse feststehenden Sensor steht. Der Sensor ist dazu eingerichtet, neben der Flussdichte des Magnetfeldes auch die Richtung des Magnetfeldes zu bestimmen. Der Sensor ist hierbei nicht mit dem Magneten gekoppelt, so dass es vorkommen kann, dass bei einer ungünstigen Bewegung des Laugenbehälters der Magnet den Wirkbereich des Sensors verlässt. Hierbei würde es zu Fehlsensierungen kommen, so dass unnötige Maßnahmen zur Unwuchtbegrenzung eingeleitet würden. Im schlimmeren Fall könnten starke Bewegungen nicht frühzeitig als solche erkannt werden, was zu unerwünschten starken Vibrationen führen würde.From the DE 20 2007 002 626 U1 a washing machine is known, which has a detection device for detecting the position and / or the position of the tub in the housing. The detection device comprises a magnet attached to the movable tub, which is in operative connection with a sensor fixed relative to the housing. The sensor is set up to determine the direction of the magnetic field in addition to the flux density of the magnetic field. In this case, the sensor is not coupled to the magnet, so that it can happen that, in the event of an unfavorable movement of the tub, the magnet leaves the effective range of the sensor. This would lead to erroneous sensations, so that unnecessary measures for unbalance limitation would be initiated. In the worst case, strong movements could not be detected early as such, which would lead to unwanted strong vibrations.

Aus der DE 100 22 609 A1 ist es bekannt, am Umfang des Laugenbehälters mehrere Sensoren anzubringen, um eine genaue Erfassung von unwuchtbedingten Bewegungen oderFrom the DE 100 22 609 A1 It is known to attach a plurality of sensors on the circumference of the tub to an accurate detection of unbalanced movements or

Auslenkungen des Laugenbehälters zu erreichen. Diese Anordnung ist aufgrund der Verschaltung von mehreren Sensoren recht aufwändig.To achieve deflections of the tub. This arrangement is quite complex due to the interconnection of multiple sensors.

Der Erfindung liegt somit die Aufgabe zugrunde, eine Wäschebehandlungsmaschine bereit zu stellen, bei der die Erfassung von Auslenkungen des Laugenbehälters einfach und zuverlässig erfolgt.The invention is therefore an object of the invention to provide a laundry treatment machine, in which the detection of deflections of the tub is simple and reliable.

Erfindungsgemäß wird dieses Problem durch die Merkmale des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Ansprüchen 2 bis 12.According to the invention, this problem is solved by the features of patent claim 1. Advantageous embodiments and further developments of the invention will become apparent from the dependent claims 2 to 12.

Die mit der Erfindung erreichbaren Vorteile bestehen darin, dass eine sehr genaue Erfassung der Position und Lage des Laugenbehälters bereitgestellt wird, so dass gezielt angepasste Maßnahmen zur Begrenzung der Auslenkungen des Laugenbehälters eingeleitet werden können.The achievable with the invention advantages are that a very accurate detection of the position and position of the tub is provided so that purposefully adapted measures to limit the deflections of the tub can be initiated.

Bei der erfindungsgemäßen Waschmaschine ist der Magnetfeldsensor fest oder im Wesentlichen fest dem Gehäuse zugeordnet, wobei der dem Magnetfeldsensor zugeordnete Magnet in einem dem Sensor zugeordneten Gelenk angebracht ist, das mittels einer Hebelmechanik mit dem Laugenbehälter in Wirkverbindung steht. Die Hebelmechanik ist dazu ausgebildet, eine Bewegung oder Positionsänderung des Laugenbehälters auf den Magneten zu übertragen. Durch die Kopplung des Magneten mit der Hebelmechanik wird erreicht, dass der Bewegungsraum des Magneten auf den optimalen Wirkbereich des Sensors begrenzt werden kann, so dass die Hebelmechanik als Untersetzung der Laugenbehälterbewegung zur Bewegung des Magneten wirkt. Dadurch kann ein einfach ausgeführter Sensor zur Erfassung des kompletten Bewegungsbereiches des Laugenbehälters verwendet werden. Ferner kann ein kleiner, kostengünstiger Magnet verwendet werden, da aufgrund der Untersetzung nur eine kleine Bewegung am Sensor erfasst werden muss.In the case of the washing machine according to the invention, the magnetic field sensor is fixedly or essentially fixedly assigned to the housing, the magnet associated with the magnetic field sensor being mounted in a joint associated with the sensor, which is in operative connection with the tub by means of a lever mechanism. The lever mechanism is adapted to transmit a movement or position change of the tub to the magnet. By coupling the magnet with the lever mechanism is achieved that the movement space of the magnet can be limited to the optimum effective range of the sensor, so that the lever mechanism acts as a reduction of the tub movement to the movement of the magnet. As a result, a simply executed sensor can be used to detect the complete range of motion of the tub. Furthermore, a small, inexpensive magnet can be used, since due to the reduction only a small movement on the sensor must be detected.

In einer vorteilhaften Ausführung umfasst die Hebelmechanik einen ersten Hebel, der mit einem ersten Gelenk mit dem Laugenbehälter gekoppelt ist, und einen zweiten Hebel, der an einem ersten Ende mit dem ersten Hebel mittels eines zweiten Gelenks gekoppelt ist und mit seinem zweiten Ende das sensorseitige dritte Gelenk mit dem am dritten Gelenk angebrachten Magneten bildet. Durch den mehrgelenkigen Aufbau der Hebelmechanik wird eine flachbauende Einheit mit hoher Präzision bereitgestellt.In an advantageous embodiment, the lever mechanism comprises a first lever, which is coupled to the tub with a first joint, and a second lever, which is coupled at a first end to the first lever by means of a second articulation and with its second end, the sensor-side third Joint forms with the magnet attached to the third joint. Due to the multi-joint structure of the lever mechanism a flat-building unit is provided with high precision.

Hierbei ist es zweckmäßig, den ersten Hebel in etwa im rechten Winkel zum zweiten Hebel zu positionieren. Hierdurch ist der Bewegungsbereich der Hebelmechanik in einer Ebene begrenzt, die sich beabstandet zur Laugenbehälterwand befindet. Dadurch muss insgesamt wenig Bewegungsraum für die Hebelmechanik bereitgestellt werden.It is expedient to position the first lever approximately at right angles to the second lever. As a result, the range of motion of the lever mechanism is limited in a plane which is located at a distance from the tub wall. As a result, little overall space for the lever mechanism must be provided.

In einer weiteren, vorteilhaften Ausführung ist das dritte Gelenk ein Kugelgelenk, welches eine am Hebel angebrachte Kugel umfasst, die in einer korrespondierenden, relativ zum Gehäuse feststehenden Pfanne gehalten ist, wobei der Magnet an der Kugel derart angebracht ist, dass er sich im Wirkbereich des Sensors befindet. Durch die Anordnung des Magneten an der Kugel werden die im Bewegungsraum durchgeführten Bewegungen des Laugenbehälters als Dreh- Kippbewegungen auf den Magneten übertragen, so dass stets sichergestellt ist, dass der Magnet den Wirkbereich des Sensors nicht verlässt.In a further advantageous embodiment, the third joint is a ball joint, which comprises a lever mounted on the ball, which is held in a corresponding, fixed relative to the housing pan, wherein the magnet is attached to the ball so that it is in the effective range of Sensor is located. As a result of the arrangement of the magnet on the ball, the movements of the tub in the movement space are transmitted as rotational tilting movements to the magnet, so that it is always ensured that the magnet does not leave the effective range of the sensor.

Für die Ausbildung des zweiten Gelenkes ist es vorteilhaft, dieses zur Kopplung des zweiten Endes des ersten Hebels mit dem ersten Ende des zweiten Hebels als Kugelgelenk oder als Kreuzgelenk auszubilden. Dadurch kann eine gute Anpassung der Auslenkungen des Laugenbehälters an die Bewegung der Kugel mit dem Sensor erreicht werden.For the formation of the second joint, it is advantageous to form this for coupling the second end of the first lever with the first end of the second lever as a ball joint or as a universal joint. This allows a good adaptation of the deflections of the tub to the movement of the ball can be achieved with the sensor.

In einer zweckmäßigen Ausführung ist das erste Gelenk zur Kopplung des ersten Endes des ersten Hebels an den Laugenbehälter ein Drehgelenk, dessen Drehachse im Wesentlichen senkrecht zur Laugenbehälterwand im Kopplungsbereich steht. Hierdurch ist sichergestellt, dass geradlinige Bewegungen des Laugenbehälters auf die Kugel mit dem dort angebrachten Magneten optimal übertragen werden.In an expedient embodiment, the first joint for coupling the first end of the first lever to the tub is a rotary joint whose axis of rotation is substantially perpendicular to the tub wall in the coupling region. This ensures that linear movements of the tub are optimally transmitted to the ball with the magnet mounted there.

Um das Drehgelenk sehr einfach zu fertigen ist es zweckmäßig, dieses mittels eines Filmscharniers zu bilden. Dieses besteht dann aus einem einteiligen Kunststoffteil.To make the hinge very easy, it is expedient to form this by means of a film hinge. This then consists of a one-piece plastic part.

In einer weiteren, vorteilhaften Ausführung besitzt die Waschmaschine ein Führungselement zur Begrenzung des Abstandes des ersten Hebels und/oder des zweiten Hebels zur Laugenbehälterwand. Dadurch ist sichergestellt, dass auch bei starken Vibrationen die Hebel den vorgegebenen Bewegungsraum nicht verlassen.In a further advantageous embodiment, the washing machine has a guide element for limiting the distance of the first lever and / or the second lever to the tub wall. This ensures that even with strong vibrations, the levers do not leave the given range of motion.

In einer weiteren, vorteilhaften Ausführung ist die Kopplung am Laugenbehälter mit einem Führungselement gebildet, in dem der erste Hebel verschiebbar geführt ist. Dadurch kann das Drehgelenk entfallen.In a further advantageous embodiment, the coupling to the tub is formed with a guide element in which the first lever is guided displaceably. As a result, the rotary joint can be omitted.

Für die Ausbildung der Kugelgelenke ist es vorteilhaft, an der Kugel eine Nocke zum Eingriff in eine korrespondierende Nut in der Pfanne anzubringen, die dazu eingerichtet ist, als Verdrehsicherung für die Begrenzung des Verschwenkweges und/oder der Verschwenkrichtung der Hebel zu wirken.For the formation of the ball joints, it is advantageous to attach to the ball a cam for engagement in a corresponding groove in the pan, which is adapted to act as a rotation for limiting the Verschwenkweges and / or the pivoting of the lever.

Für eine frontbeschickbare Waschmaschine ist es vorteilhaft, den ersten Hebel an der mantelseitigen Wand des Laugenbehälters zu koppeln, da auf der mantelseitigen Oberseite genügend Bewegungsraum für die Hebelmechanik vorhanden ist.For a front loadable washing machine, it is advantageous to couple the first lever on the shell-side wall of the tub, since sufficient space for movement for the lever mechanism is present on the shell-side top.

Für eine mantelbeschickbare Waschmaschine ist es vorteilhaft, den ersten Hebel an einer stirnseitigen Wand des Laugenbehälters zu koppeln. Mantelbeschickbare Waschmaschinen haben auf der Oberseite die Beschickungsöffnung, so dass der Bewegungsraum für die Hebelmechanik an der Stirnseite vorgehalten werden muss.For a coat-loadable washing machine, it is advantageous to couple the first lever to an end wall of the tub. Mantelbeschickbare washing machines have on the top of the feed opening, so that the movement space for the lever mechanism on the front page must be kept.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigen:

Fig. 1 bis 3
eine skizzierte Ansicht einer Waschmaschine mit der Erfassungseinrichtung in unterschiedlichen Ausführungen;
Fig. 4
eine Detailansicht eines Kugelgelenks und
Fig. 5
eine weitere Detailansicht des Drehgelenks in einer Ausführung.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. Show it:
Fig. 1 to 3
a sketched view of a washing machine with the detection device in different versions;
Fig. 4
a detailed view of a ball joint and
Fig. 5
another detail view of the rotary joint in one embodiment.

Die Figur 1 zeigt in einer skizzierten Ansicht eine Waschmaschine 1 in betriebsgemäßer Aufstellposition, welche ein Gehäuse 2 mit einem darin schwingbeweglich angebrachten Laugenbehälter 4 umfasst. Der Laugenbehälter 4 ist mittels angedeuteter Federelemente 15 schwingbeweglich in dem Gehäuse 2 aufgehängt und mittels Dämpfer 16 hinsichtlich seiner Bewegung gedämpft. In dem Laugenbehälter 4 ist eine drehbare Trommel 3 mit einer wenigstens annähernd horizontalen Drehachse 6 angeordnet. Die Trommel 3 ist mit einem Motor 5 antreibbar, so dass die Drehbewegung beim Waschen oder beim Schleudern bereitgestellt wird. Die Waschmaschine 1 umfasst ferner eine Erfassungseinrichtung 7 zur Erfassung der Position und/oder Lage und/oder der Bewegung des Laugenbehälters 4 relativ zum Gehäuse 2. In dem gezeigten Beispiel umfasst die Erfassungseinrichtung 7 einen Magnetfeldsensor 8, der ortsfest relativ zum Gehäuse 2 befestigt ist. Ein Magnet 9 ist im Wirkbereich des Sensors 8 angeordnet, der mittels der Hebelmechanik 11 bewegt werden kann, wobei die Bewegung von der Schwingung oder Positionsänderung des Laugenbehälters 4 verursacht wird. Die Hebelmechanik 11 besteht aus einem ersten Hebel 12, der mit dem ersten Gelenk 10 am Laugenbehälter 4 angekoppelt ist. Das erste Gelenk 10 ist hierbei als Drehgelenk ausgebildet, dessen Drehachse 17 senkrecht zur Laugenbehälterwand, hier der stirnseitigen Wand 21, steht. Am anderen Ende des ersten Hebels ist mittels des zweiten Gelenks 14, das hier als Kugelgelenk ausgebildet ist, ein zweiter Hebel 13 angekoppelt, dessen Ende mit dem dritten Gelenk 15 verbunden ist, das den Magneten trägt. Das dritte Gelenk 15 ist hier als Kugelgelenk ausgebildet, wobei das Hebelende die Kugel 15a bildet, auf der der Magnet 9 befestigt ist. Die Kugelpfanne 15b ist ortsfest zum Gehäuse an einem Träger 23 befestigt. Am Träger 23 ist der Magnetfeldsensor 8 angeordnet, der dazu eingerichtet ist, die Stärke des Magnetfeldes und die Richtung der Feldlinien des vom Magneten 9 ausgehenden Magnetfeldes zu erfassen.The FIG. 1 shows in a sketched view of a washing machine 1 in operating position, which includes a housing 2 with a swingably mounted therein tub 4. The tub 4 is suspended by means of indicated spring elements 15 swingably in the housing 2 and damped by means of damper 16 with respect to its movement. In the tub 4 a rotatable drum 3 is arranged with an at least approximately horizontal axis of rotation 6. The drum 3 is drivable with a motor 5, so that the rotational movement is provided during washing or spinning. The washing machine 1 further comprises a detection device 7 for detecting the position and / or position and / or the movement of the tub 4 relative to the housing 2. In the example shown, the detection device 7 comprises a magnetic field sensor 8, which is fixed relative to the housing 2. A magnet 9 is arranged in the effective range of the sensor 8, which can be moved by means of the lever mechanism 11, wherein the movement is caused by the oscillation or change in position of the tub 4. The lever mechanism 11 consists of a first lever 12 which is coupled to the first joint 10 on the tub 4. The first joint 10 is in this case designed as a rotary joint whose axis of rotation 17 is perpendicular to the tub wall, in this case the end wall 21. At the other end of the first lever, a second lever 13 is coupled by means of the second joint 14, which is designed here as a ball joint, whose end is connected to the third joint 15, which carries the magnet. The third joint 15 is formed here as a ball joint, wherein the lever end forms the ball 15a, on which the magnet 9 is fixed. The ball socket 15b is fixed to the housing fixed to a carrier 23. Arranged on the carrier 23 is the magnetic field sensor 8, which is set up to detect the strength of the magnetic field and the direction of the field lines of the magnetic field emanating from the magnet 9.

Fig. 2 zeigt eine Ausführung der Waschmaschine, bei der der erste Hebel 12 der Hebelmechanik 11 mit einem Führungselement 18 am Laugenbehälter angekoppelt ist. Hierbei kann der zweite Hebel 13 in Längsrichtung zum ersten Hebel 12 mit dem zweiten Gelenk 10 gekoppelt werden, wobei der Längenausgleich aufgrund von unterschiedlichen Positionen des Laugenbehälters relativ zum Gehäuse durch die Verschiebbarkeit in Längsrichtung des ersten Hebels im Führungselement bereitgestellt wird. Der erste Hebel ist in dieser Ausführung an der mantelseitigen Behälterwand 22 angekoppelt. Fig. 2 shows an embodiment of the washing machine, in which the first lever 12 of the lever mechanism 11 is coupled to a guide member 18 on the tub. in this connection For example, the second lever 13 can be coupled longitudinally to the first lever 12 with the second hinge 10, wherein the length compensation is provided due to different positions of the tub relative to the housing by the displaceability in the longitudinal direction of the first lever in the guide element. The first lever is coupled in this embodiment to the shell-side container wall 22.

Fig. 3 zeigt in der Draufsicht eine Ausführung der Hebelmechanik ähnlich der Fig. 1, wobei hier der erste Hebel mittels des ersten Drehgelenks10 an der mantelseitigen Behälterwand 22 angekoppelt ist. Bei dieser Ausführung ist der erste Hebel 12 in einem Winkel, hierbei in etwa einem rechten Winkel R, zum zweiten Hebel 13 positioniert, so dass mittels einer Winkelveränderung der Längenausgleich aufgrund von Positionsänderungen des Laugenbehälters 4 bereitgestellt wird. Fig. 3 shows in plan view an embodiment of the lever mechanism similar to Fig. 1 , Here, the first lever is coupled by means of the first rotary joint 10 on the shell-side container wall 22. In this embodiment, the first lever 12 is positioned at an angle, in this case approximately at a right angle R, to the second lever 13, so that the length compensation due to changes in position of the tub 4 is provided by means of an angular change.

Bei allen Ausführungen ist der Träger 23 neben dem Sensor 8 mit einer elektronischen Schaltungsanordnung versehen, die eine Aufbereitung des Sensorsignals für die Steuerung (nicht dargestellt) der Waschmaschine 1 vornimmt.In all embodiments, the carrier 23 is provided in addition to the sensor 8 with an electronic circuit arrangement which carries out a processing of the sensor signal for the control (not shown) of the washing machine 1.

Fig. 4 zeigt im Detail eine Schnittdarstellung eines Kugelgelenks 15 bei dem die Kugel 15a mit einer Nocke 19 versehen ist, die in eine korrespondierende Nut 20 in der Pfanne 15b eingreift. Die Nut 20 wirkt hierbei als Steuerkurve für die Nocke 19 und dient als Verdrehsicherung. Fig. 4 shows in detail a sectional view of a ball joint 15 in which the ball 15a is provided with a cam 19 which engages in a corresponding groove 20 in the socket 15b. The groove 20 acts as a cam for the cam 19 and serves as anti-rotation.

Fig. 5 zeigt im Detail das Drehgelenk 10, bei dem die Drehachse 17 mittels eines Filmscharniers 17a gebildet ist. Fig. 5 shows in detail the rotary joint 10, wherein the axis of rotation 17 is formed by means of a film hinge 17a.

Claims (12)

Waschmaschine (1) mit einem Gehäuse (2), mit einem in dem Gehäuse (2) schwingend befestigten Laugenbehälter (4) mit einer darin drehbar angeordneten Trommel (3) mit einer wenigstens annähernd horizontalen Drehachse (6), die mittels eines Motors (5) antreibbar ist und einer Erfassungseinrichtung (7) zur Erfassung der Position und/oder der Lage des Laugenbehälters (4) in dem Gehäuse (2), die einen Magnetfeldsensor (8) mit einem korrespondierenden Magneten (9) umfasst, der dazu eingerichtet ist, die Flussdichte und die Richtung des vom Magneten (9) ausgehenden Magnetfeldes zu erfassen, dadurch gekennzeichnet,
dass der Magnetfeldsensor (8) im Wesentlichen fest dem Gehäuse (2) zugeordnet ist, wobei der dem Magnetfeldsensor (8) zugeordnete Magnet (9) in einem dem Sensor (8) zugeordneten Gelenk (15) angebracht ist, das mittels einer Hebelmechanik (11) mit dem Laugenbehälter (4) in Wirkverbindung steht, wobei die Hebelmechanik (11) dazu ausgebildet ist, eine Bewegung oder Positionsänderung des Laugenbehälters (4) auf den Magneten (9) zu übertragen.Washing machine (1) having a housing (2) with a tub (4) swingably mounted in the housing (2) with a drum (3) rotatably mounted therein and having an at least approximately horizontal axis of rotation (6) ) and a detection device (7) for detecting the position and / or the position of the tub (4) in the housing (2), which comprises a magnetic field sensor (8) with a corresponding magnet (9), which is adapted to to detect the flux density and the direction of the magnetic field emanating from the magnet (9), characterized
in that the magnetic field sensor (8) is substantially fixedly assigned to the housing (2), the magnet (9) associated with the magnetic field sensor (8) being mounted in a joint (15) associated with the sensor (8), which is actuated by means of a lever mechanism (11 ) is in operative connection with the tub (4), wherein the lever mechanism (11) is adapted to transmit a movement or position change of the tub (4) on the magnet (9). Waschmaschine (1) nach Anspruch 1,
dadurch gekennzeichnet,
dass die Hebelmechanik (11) einen ersten Hebel (12), der mit einem ersten Gelenk (10) mit dem Laugenbehälter (4) gekoppelt ist, und einen zweiten Hebel (13), der an einem ersten Ende mit dem ersten Hebel (12) mittels eines zweiten Gelenks (14) gekoppelt ist und mit seinem zweiten Ende das sensorseitige dritte Gelenk (15) bildet, an dem der Magnet (9) angebracht ist.Washing machine (1) according to claim 1,
characterized,
in that the lever mechanism (11) has a first lever (12) which is coupled to the tub (4) with a first joint (10), and a second lever (13) which is connected to the first lever (12) at a first end. is coupled by means of a second joint (14) and forms with its second end, the sensor-side third joint (15) on which the magnet (9) is mounted. Waschmaschine (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass der erste Hebel (12) in etwa im rechten Winkel (R) zum zweiten Hebel (13) positioniert ist.Washing machine (1) according to claim 2,
characterized,
in that the first lever (12) is positioned approximately at right angles (R) to the second lever (13). Waschmaschine (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass das dritte Gelenk (15) ein Kugelgelenk ist, welches eine am zweiten Hebel (13) angebrachte Kugel (15a) umfasst, die in einer korrespondierenden, relativ zum Gehäuse (2) feststehenden Pfanne (15b) gehalten ist, wobei der Magnet (9) an der Kugel (15a) derart angebracht ist, dass er sich im Wirkbereich des Sensors (8) befindet.Washing machine (1) according to claim 2,
characterized,
that the third joint (15) is a ball joint which mounted a on the second lever (13), ball (15a) which is fixed in a corresponding, relative to the housing (2), socket (15b) is held, wherein the magnet (9 ) is mounted on the ball (15a) so as to be within the effective range of the sensor (8). Waschmaschine (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass das zweite Gelenk (14) zur Kopplung des zweiten Endes des ersten Hebels (12) mit dem ersten Ende des zweiten Hebels (13) als Kugelgelenk (14a, 14b) oder als Kreuzgelenk ausgebildet ist.Washing machine (1) according to claim 2,
characterized,
that the second joint (14) for coupling the second end of the first lever (12) to the first end of the second lever (13) as a ball joint (14a, 14b) or as a universal joint. Waschmaschine (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass das erste Gelenk (10) zur Kopplung des ersten Endes des ersten Hebels (12) an den Laugenbehälter (4) ein Drehgelenk ist, dessen Drehachse (17) im Wesentlichen senkrecht zur Laugenbehälterwand (21, 22) im Kopplungsbereich steht.Washing machine (1) according to claim 2,
characterized,
in that the first joint (10) for coupling the first end of the first lever (12) to the tub (4) is a rotary joint whose axis of rotation (17) is substantially perpendicular to the tub wall (21, 22) in the coupling area. Waschmaschine (1) nach Anspruch 6,
dadurch gekennzeichnet,
dass das Drehgelenk (10) mittels eines Filmscharniers (17a) gebildet ist.Washing machine (1) according to claim 6,
characterized,
in that the swivel joint (10) is formed by means of a film hinge (17a). Waschmaschine (1) nach Anspruch 2,
gekennzeichnet durch
ein Führungselement (18) zur Begrenzung des Abstandes des ersten Hebels (12) und/oder des zweiten Hebels (13) zur Laugenbehälterwand (21, 22).Washing machine (1) according to claim 2,
marked by
a guide member (18) for limiting the distance of the first lever (12) and / or the second lever (13) to the tub wall (21, 22). Waschmaschine (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass der erste Hebel (12) mit einem Führungselement (18) am Laugenbehälter (4) gekoppelt ist.Washing machine (1) according to claim 2,
characterized,
in that the first lever (12) is coupled to a guide element (18) on the tub (4). Waschmaschine (1) nach Anspruch 4 oder 5,
dadurch gekennzeichnet,
dass das Kugelgelenk (14, 15) an der Kugel (14a, 15a) eine Nocke (19) zum Eingriff in eine korrespondierende Nut (20) in der Pfanne (14b, 15b) umfasst, die dazu eingerichtet ist, als Verdrehsicherung für die Begrenzung des Verschwenkweges und/oder der Verschwenkrichtung des Hebels (12, 13) zu wirken.Washing machine (1) according to claim 4 or 5,
characterized,
in that the ball joint (14, 15) on the ball (14a, 15a) comprises a cam (19) for engagement in a corresponding groove (20) in the socket (14b, 15b), which is arranged to prevent rotation for the boundary the Verschwenkweges and / or the pivoting direction of the lever (12, 13) to act. Waschmaschine (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass der erste Hebel (12) an der mantelseitigen Wand (22) des Laugenbehälters (4) gekoppelt ist.Washing machine (1) according to claim 2,
characterized,
in that the first lever (12) is coupled to the shell-side wall (22) of the tub (4). Waschmaschine (1) nach Anspruch 2,
dadurch gekennzeichnet,
dass der erste Hebel (12) an einer stirnseitigen Wand (21) des Laugenbehälters (4) gekoppelt istWashing machine (1) according to claim 2,
characterized,
in that the first lever (12) is coupled to an end wall (21) of the tub (4)
EP09006568A 2009-05-15 2009-05-15 Washing machine with a lye container and a registration device Not-in-force EP2251478B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09006568A EP2251478B1 (en) 2009-05-15 2009-05-15 Washing machine with a lye container and a registration device
ES09006568T ES2393432T3 (en) 2009-05-15 2009-05-15 Washing machine with a washing container and detection equipment
PL09006568T PL2251478T3 (en) 2009-05-15 2009-05-15 Washing machine with a lye container and a registration device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09006568A EP2251478B1 (en) 2009-05-15 2009-05-15 Washing machine with a lye container and a registration device

Publications (2)

Publication Number Publication Date
EP2251478A1 true EP2251478A1 (en) 2010-11-17
EP2251478B1 EP2251478B1 (en) 2012-10-10

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Application Number Title Priority Date Filing Date
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Country Link
EP (1) EP2251478B1 (en)
ES (1) ES2393432T3 (en)
PL (1) PL2251478T3 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60179093A (en) * 1984-02-27 1985-09-12 松下電器産業株式会社 Safety switch of dehydration washer
DE4319614C1 (en) * 1993-06-14 1994-08-18 Bauknecht Hausgeraete Drum-type washing machine
JPH0871290A (en) * 1994-09-02 1996-03-19 Matsushita Electric Ind Co Ltd Vibration sensor of fully automatic washing machine and its signal processing means
EP0972874A1 (en) * 1998-07-16 2000-01-19 Samsung Electronics Co., Ltd. Washing Machine
DE10022609A1 (en) 2000-05-09 2001-11-29 Whirlpool Co Device for limiting the unbalance effect of a washing unit in a washing machine
EP1264925A2 (en) * 2001-06-08 2002-12-11 Electrolux Home Products Corporation N.V. Washing machine with weight sensor
JP2006068273A (en) * 2004-09-02 2006-03-16 Matsushita Electric Ind Co Ltd Drum type washing machine
DE202007002626U1 (en) 2007-02-22 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Combined washing machine and dryer includes magnetic detector sensing position and attitude of drum container vessel within outer casing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60179093A (en) * 1984-02-27 1985-09-12 松下電器産業株式会社 Safety switch of dehydration washer
DE4319614C1 (en) * 1993-06-14 1994-08-18 Bauknecht Hausgeraete Drum-type washing machine
JPH0871290A (en) * 1994-09-02 1996-03-19 Matsushita Electric Ind Co Ltd Vibration sensor of fully automatic washing machine and its signal processing means
EP0972874A1 (en) * 1998-07-16 2000-01-19 Samsung Electronics Co., Ltd. Washing Machine
DE10022609A1 (en) 2000-05-09 2001-11-29 Whirlpool Co Device for limiting the unbalance effect of a washing unit in a washing machine
EP1264925A2 (en) * 2001-06-08 2002-12-11 Electrolux Home Products Corporation N.V. Washing machine with weight sensor
JP2006068273A (en) * 2004-09-02 2006-03-16 Matsushita Electric Ind Co Ltd Drum type washing machine
DE202007002626U1 (en) 2007-02-22 2007-04-19 BSH Bosch und Siemens Hausgeräte GmbH Combined washing machine and dryer includes magnetic detector sensing position and attitude of drum container vessel within outer casing

Also Published As

Publication number Publication date
EP2251478B1 (en) 2012-10-10
ES2393432T3 (en) 2012-12-21
PL2251478T3 (en) 2013-01-31

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