EP0383028A2 - Dishwashing machine compromising an electro-mechanic reversing device - Google Patents

Dishwashing machine compromising an electro-mechanic reversing device Download PDF

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Publication number
EP0383028A2
EP0383028A2 EP90100792A EP90100792A EP0383028A2 EP 0383028 A2 EP0383028 A2 EP 0383028A2 EP 90100792 A EP90100792 A EP 90100792A EP 90100792 A EP90100792 A EP 90100792A EP 0383028 A2 EP0383028 A2 EP 0383028A2
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EP
European Patent Office
Prior art keywords
dishwasher according
perforated
passages
slide
output connections
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.)
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Application number
EP90100792A
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German (de)
French (fr)
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EP0383028A3 (en
Inventor
Heinz Käfferlein
Karlheinz Kohles
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Licentia Patent Verwaltungs GmbH
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Licentia Patent Verwaltungs GmbH
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Priority claimed from DE19893904359 external-priority patent/DE3904359A1/en
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0383028A2 publication Critical patent/EP0383028A2/en
Publication of EP0383028A3 publication Critical patent/EP0383028A3/en
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4219—Water recirculation
    • A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms

Definitions

  • the invention relates to a dishwasher.
  • a driven multi-way valve is provided as the reversing device.
  • the invention is based on the object of specifying a reversing device in a dishwasher designed according to the preamble of the first claim, in which the washing liquid supplied to a common input connection can optionally flow via one or more of the output connections to corresponding spray devices.
  • a second slide valve is provided with two additional secondary passages
  • these secondary passages can be made to coincide with two of the main passages of the additional slide valve (s), so that the input connection is then connected to the corresponding two output connections in terms of flow.
  • a pair of output connections can each be brought into flow connection with the input connection by adjusting all hole slides together.
  • a third hole slide valve can be used to selectively connect three output connections to the input connection.
  • a bypass-free field must be provided between at least two main passages for each hole slide valve if the hole slide valves are designed as perforated disks which can be rotated through 360 degrees.
  • Such perforated disks are preferably fixed on concentrically mounted actuation shafts, each of which has its own drive in drive connection, the respective drive connection having to travel a step for each step in the manner of a stepping mechanism, which corresponds to the division between a main passage and a secondary passage.
  • the individual hole slides which are preferably designed to be displaceable in a straight line, into the individual desired positions via a control cam gear.
  • a housing 1 of a multi-way valve designed as a rotary slide valve, which serves as a reversing device for spray devices in a dishwasher there is a common input connection 2, through which washing liquid for the spray devices is supplied in operation by a circulating pump.
  • a perforated slide 7 in the form of a perforated disk rotatably mounted in the housing 1 is placed on the ends of the output connections 3 - 6 located inside the housing 1.
  • This first perforated disc 7 slides in the plane of the adjacent ends of the output connections 3 - 6 and lies sealingly on the edges thereof.
  • main passages 8 which are arranged according to the number and local arrangement of the output connections 3 - 6. 1, these main passages 8 lie in alignment with the respectively associated output connections 3 - 6.
  • a secondary passage 9 is arranged on the bisector between two of the main passages 8 on the same bolt circle diameter, as shown in FIG. 3.
  • a further perforated disk 10 rests on the perforated disk 7 and, like the perforated disk 7, has main passages 8 lying congruent with the output connections, as shown in FIG. 4.
  • This perforated disc 10 is provided with two additional secondary passages 11 on two bisector angles between adjacent ones, offset by 90 degrees Main passages 8 provided.
  • this perforated disc 10 is placed flat on the perforated disc 7, that in the present case only one of the secondary passages 11 is in alignment with the output connection 3. In the same way, however, the second secondary passage 11 then also lies in alignment with the outlet connection 6.
  • a third perforated disk 12 rests on the perforated disk 10, the main passages 8 of which are in alignment with the associated output connections 3 - 6.
  • this perforated disk 12 diametrically opposite, 8 secondary passages 13 are arranged on a bisector between two adjacent main passages.
  • the perforated disks 7, 10, 12 are mounted concentrically to one another and in the center of the output connections 3 - 6 via actuating shafts 16, 17, 18 so as to be rotatable about an axis 14 which is perpendicular to the plane receiving the inner ends of the output connections 3 - 6. This axis 14 thus runs parallel to the axes of the output connections 3-6.
  • the perforated disk 7 can be left in the basic position according to FIG. 3, while the middle perforated disk 10 clockwise by 90 degrees and the third perforated disk 12 by would be rotated 45 degrees. Subsequently, either only the third perforated disk 12 or all three perforated disks need to be rotated together by 90 degrees in a mutually locked position. In further position combinations of these perforated disks and combined positioning steps of 45 degrees and 90 degrees, several or only one of the output connections 3 - 6 can alternately be brought into flow connection with the input connection 2.
  • the output connections 3 - 6 are offset at the same angle to one another and the perforated disks 7, 10, 12 are concentric in the housing 1 on actuating shafts 16, 17, 18. stored. Different from the form shown with four output connections, a different number of output connections can also be provided, the angular positions of the main and secondary passages 8, 9, 11, 13 then having to be adapted accordingly.
  • Each of the perforated disks can be assigned its own drive unless a suitable multiple gear with controllable coupling devices is not provided. If individual drives are provided, then it is expedient to synchronize the movement sequence in such a way that the passages in the area of the respective output connection 3 - 6 are properly covered.
  • Stepper motors can also be used to control the perforated disks, the step size of which corresponds to the distance between a main and a secondary passage.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Reciprocating Pumps (AREA)
  • Multiple-Way Valves (AREA)

Abstract

The dishwashing machine is provided with a reversing device with a common input connection (2) and separate output connections (3-6), via which spraying devices can be connected to a circulation pump in a variable sequence in terms of flow. For this purpose, the reversing device has a multi-way valve in the form of a multiple rotary slide valve which has at least two independently adjustable perforated slides (7, 10, 12) in a common housing (1). In this arrangement, the perforated slides have main and subsidiary passages (8, 11) in different configurations and can be rotated relative to one another in such a way that the main and subsidiary passages are mutually overlaid in different combinations and in alignment with at least one of the output connections (3-6). <IMAGE>

Description

Die Erfindung betrifft eine Geschirrspülmaschine.The invention relates to a dishwasher.

Bei der bereits vorgeschlagenen Geschirrspülmaschine ist als Umsteuervorrichtung ein angetriebenes Mehrwegeventil vorhanden.In the dishwasher which has already been proposed, a driven multi-way valve is provided as the reversing device.

Der Erfindung liegt die Aufgabe zugrunde, bei einer gemäß dem Oberbegriff des ersten Anspruchs ausgebildeten Geschirrspülmaschine eine Umsteuervorrichtung anzugeben, bei der die einem gemeinsamen Eingangsanschluß zugeführte Spülflüssigkeit wahlweise über einen oder mehrere der Ausgangsanschlüsse zu entsprechenden Sprühvorrichtungen strömen kann.The invention is based on the object of specifying a reversing device in a dishwasher designed according to the preamble of the first claim, in which the washing liquid supplied to a common input connection can optionally flow via one or more of the output connections to corresponding spray devices.

Die Lösung dieser Aufgabe erfolgt gemäß der Erfindung durch die kennzeichnenden Merkmale des ersten Anspruchs.This object is achieved according to the invention by the characterizing features of the first claim.

Bei einer Ausgestaltung einer Umsteuervorrichtung als Mehrwegeventil gemäß der Erfindung werden in einer Grundstellung der Lochschieber alle Ausgangsanschlüsse über deckungsgleiche Hauptdurchgänge mit dem Eingangsanschluß verbunden. Wird danach einer der Lochschieber, der in der Stellrichtung versetzt einen Nebendurchgang aufweist, um den entsprechenden Weg verstellt, dann verdeckt dieser Lochschieber die jeweils benachbarten Hauptdurchgänge der übrigen Lochschieber, während sein Nebendurchgang in eine Flucht mit den dann achsengleichen Hauptdurchgängen der übrigen Lochschieber zu liegen kommt. Dieser eine Durchgangsweg kann dann durch gemeinsames Verschieben aller Lochschieber wahlweise zu den einzelnen Ausgangsanschlüssen gestellt werden. Die Spülflüssigkeit wird somit vom Eingangsanschluß auf jeweils nur einen der Ausgangsanschlüsse geleitet. Wird ein zweiter Lochschieber beispielsweise mit zwei zusätzlichen Nebendurchgängen versehen, dann können diese Nebendurchgänge mit zweien der Hauptdurchgänge des oder der weiteren Lochschieber in Überdeckung gebracht werden, so daß dann der Eingangsanschluß mit den entsprechenden beiden Ausgangsanschlüssen strömungsmäßig verbunden ist. Auch hier kann durch gemeinsames Verstellen aller Lochschieber jeweils ein Paar von Ausgangsanschlüssen mit dem Eingangsanschluß in Strömungsverbindung gebracht werden. Mit einem dritten Lochschieber können dementsprechend drei Ausgangsanschlüsse selektiert an den Eingangsanschluß angeschaltet werden. In jedem Fall muß jedoch zwischen wenigstens zwei Hauptdurchgängen bei jedem Lochschieber ein nebendurchgangsfreies Feld vorgesehen sein, wenn die Lochschieber als um 360 Grad drehbare Lochscheiben ausgebildet sind. Derartige Lochscheiben werden vorzugsweise auf konzentrisch gelagerten Betätigungswellen festgesetzt, die mit jeweils einem eigenen Antrieb in Antriebsverbindung stehen, wobei die jeweilige Antriebsverbindung nach Art eines Schrittschaltwerkes je Schritt einen Stellweg zurückzulegen hat, welcher der Teilung zwischen einem Hauptdurchgang und einem Nebendurchgang entspricht. Daneben ist es aber auch möglich, die einzelnen Lochschieber, die vorzugsweise geradlinig verschiebbar ausgebildet sind, über ein Steuernockengetriebe in die einzelnen gewünschten Positionen zu stellen.In a configuration of a reversing device as a multi-way valve according to the invention, in a basic position of the perforated slide, all output connections are connected to the input connection via congruent main passages. Then one of the hole slides, which has a secondary passage offset in the direction of adjustment, around which adjusted corresponding path, then this hole slide covers the respective adjacent main passages of the other hole slides, while its secondary passage comes into alignment with the main passages of the other hole slides, which are then axially aligned. This one passageway can then optionally be made to the individual output connections by moving all the slides together. The rinsing liquid is thus directed from the input connection to only one of the output connections. If, for example, a second slide valve is provided with two additional secondary passages, these secondary passages can be made to coincide with two of the main passages of the additional slide valve (s), so that the input connection is then connected to the corresponding two output connections in terms of flow. Here, too, a pair of output connections can each be brought into flow connection with the input connection by adjusting all hole slides together. Accordingly, a third hole slide valve can be used to selectively connect three output connections to the input connection. In any case, however, a bypass-free field must be provided between at least two main passages for each hole slide valve if the hole slide valves are designed as perforated disks which can be rotated through 360 degrees. Such perforated disks are preferably fixed on concentrically mounted actuation shafts, each of which has its own drive in drive connection, the respective drive connection having to travel a step for each step in the manner of a stepping mechanism, which corresponds to the division between a main passage and a secondary passage. In addition, it is also possible to set the individual hole slides, which are preferably designed to be displaceable in a straight line, into the individual desired positions via a control cam gear.

Andere vorteilhafte Weiterbildungen der Erfindung sind in den übrigen Ansprüchen angegeben.Other advantageous developments of the invention are specified in the remaining claims.

Die Erfindung ist nachfolgend anhand von Skizzen eines Ausführungsbeispiels näher erläutert.The invention is explained in more detail below with the aid of sketches of an exemplary embodiment.

Es zeigt:

  • Fig. 1 einen Schnitt durch eine Umsteuervorrichtung mit konzentrisch zueinander gelagerten Lochscheiben und
  • Fig. 2 eine Schnittdarstellung entlang der Linie A - B der Fig. 1 mit Blick auf die Ausgangsanschlüsse der Umsteuervorrichtung.
It shows:
  • Fig. 1 shows a section through a reversing device with concentrically mounted perforated disks and
  • FIG. 2 shows a sectional illustration along the line A - B of FIG. 1 with a view of the output connections of the reversing device.

In einem Gehäuse 1 eines als Drehschieber ausgebildeten Mehrwegeventils, das als Umsteuervorrichtung für Sprühvorrichtungen in einer Geschirrspülmaschine dient, befindet sich ein gemeinsamer Eingangsanschluß 2, durch den Spülflüssigkeit für die Sprühvorrichtungen im Betrieb durch eine Umwälzpumpe zugeführt wird. Innerhalb des Gehäuses 1 münden in einer gemeinsamen Ebene außerdem Ausgangsanschlüsse 3, 4, 5 u. 6. Auf die im Innern des Gehäuses 1 liegenden Enden der Ausgangsanschlüsse 3 - 6 ist ein Lochschieber 7 in Form einer drehbar im Gehäuse 1 gelagerten Lochscheibe aufgesetzt. Diese erste Lochscheibe 7 gleitet in der Ebene der benachbarten Enden der Ausgangsanschlüsse 3 - 6 und liegt dichtend auf deren Rändern auf. In dieser Lochscheibe 7 befinden sich Hauptdurchgänge 8, die der Anzahl und örtlichen Anordnung der Ausgangsanschlüsse 3 - 6 entsprechend angeordnet sind. Diese Hauptdurchgänge 8 liegen gemäß Fig. 1 in einer Flucht mit den jeweils zugehörigen Ausgangsanschlüssen 3 - 6. Zusätzlich ist auf der Winkelhalbierenden zwischen zweien der Hauptdurchgänge 8 noch ein Nebendurchgang 9 auf dem gleichen Lochkreis-Durchmesser angeordnet, wie Fig. 3 zeigt.In a housing 1 of a multi-way valve designed as a rotary slide valve, which serves as a reversing device for spray devices in a dishwasher, there is a common input connection 2, through which washing liquid for the spray devices is supplied in operation by a circulating pump. Output connections 3, 4, 5 and. 6. A perforated slide 7 in the form of a perforated disk rotatably mounted in the housing 1 is placed on the ends of the output connections 3 - 6 located inside the housing 1. This first perforated disc 7 slides in the plane of the adjacent ends of the output connections 3 - 6 and lies sealingly on the edges thereof. In this perforated disc 7 there are main passages 8, which are arranged according to the number and local arrangement of the output connections 3 - 6. 1, these main passages 8 lie in alignment with the respectively associated output connections 3 - 6. In addition, a secondary passage 9 is arranged on the bisector between two of the main passages 8 on the same bolt circle diameter, as shown in FIG. 3.

Auf der Lochscheibe 7 liegt eine weitere Lochscheibe 10 auf, die gemäß Fig. 4 ebenfalls wie die Lochscheibe 7 deckungsgleich mit den Ausgangsanschlüssen liegende Hauptdurchgänge 8 aufweist. Diese Lochscheibe 10 ist mit zwei zusätzlichen Nebendurchgängen 11 auf zwei um 90 Grad versetzten Winkelhalbierenden zwischen benachbarten Hauptdurchgängen 8 versehen. In Fig. 1 ist diese Lochscheibe 10 so auf die Lochscheibe 7 plan aufgelegt, daß vorliegend lediglich einer der Nebendurchgänge 11 in einer Flucht mit dem Ausgangsanschluß 3 liegt. In gleicher Weise kommt dann aber auch der zweite Nebendurchgang 11 in einer Flucht mit dem Ausgangsanschluß 6 zu liegen.A further perforated disk 10 rests on the perforated disk 7 and, like the perforated disk 7, has main passages 8 lying congruent with the output connections, as shown in FIG. 4. This perforated disc 10 is provided with two additional secondary passages 11 on two bisector angles between adjacent ones, offset by 90 degrees Main passages 8 provided. In Fig. 1, this perforated disc 10 is placed flat on the perforated disc 7, that in the present case only one of the secondary passages 11 is in alignment with the output connection 3. In the same way, however, the second secondary passage 11 then also lies in alignment with the outlet connection 6.

Schließlich liegt hier auf der Lochscheibe 10 eine dritte, in Fig. 5 dargestellte Lochscheibe 12 auf, deren Hauptdurchgänge 8 in einer Flucht mit den zugehörigen Ausgangsanschlüssen 3 - 6 liegen. Diametral gegenüberliegend sind bei dieser Lochscheibe 12 auf einer winkelhalbierenden zwischen jeweils zwei benachbarten Hauptdurchgängen 8 Nebendurchgänge 13 angeordnet. Die Lochscheiben 7, 10, 12 sind konzentrisch zueinander und mittig zu den Ausgangsanschlüssen 3 - 6 über Betätigungswellen 16,17,18 um eine Achse 14 drehbar gelagert, die senkrecht auf der die inneren Enden der Ausgangsanschlüsse 3 - 6 aufnehmenden Ebene steht. Diese Achse 14 läuft somit parallel zu den Achsen der Ausgangsanschlüsse 3 - 6.Finally, a third perforated disk 12, shown in FIG. 5, rests on the perforated disk 10, the main passages 8 of which are in alignment with the associated output connections 3 - 6. In this perforated disk 12, diametrically opposite, 8 secondary passages 13 are arranged on a bisector between two adjacent main passages. The perforated disks 7, 10, 12 are mounted concentrically to one another and in the center of the output connections 3 - 6 via actuating shafts 16, 17, 18 so as to be rotatable about an axis 14 which is perpendicular to the plane receiving the inner ends of the output connections 3 - 6. This axis 14 thus runs parallel to the axes of the output connections 3-6.

In der vorbeschriebenen, in Fig. 1 dargestellten Stellung der Lochscheiben 7, 10, 12 gegenüber den Ausgangsanschlüssen 3 - 6 liegen die Nebendurchgänge 11 der Scheibe 10 in einer Flucht mit den zugehörigen Hauptdurchgängen 8 der Lochscheiben 7, 12, während die Hauptdurchgänge 8 der Lochscheibe 10 um 45 Grad verdreht sind und nicht in Überdeckung mit den Ausgangsanschlüssen 3 - 6 liegen können. Durch die nebendurchgangsfreien Felder 15 zwischen denjenigen Hauptdurchgängen 8 der Scheibe 10, zwischen denen sich keine Nebendurchgänge 11 befinden, werden somit die Ausgangsanschlüsse 4 u. 5 verschlossen, nachdem diese nebendurchgangsfreien Felder 15 in diesem Bereich zwischen die Hauptdurchgänge 8 der Lochscheiben 7, 12 treten. Durch gemeinsames Verdrehen aller drei Lochscheiben 7, 10, 12 in Schritten um 90 Grad können dann jeweils die Ausgangsanschlüsse 3 - 6 paarweise mit dem Eingangsanschluß 2 kommunizieren. Wenn dabei auch die Lochscheibe 12 gegenüber der in Fig. 5 dargestellten Position um 90 Grad verdreht ist, dann wird durch eines der nebendurchgangsfreien Felder 15 der Lochscheibe 12 ein sonst noch freier Strömungsweg verschlossen, der bei der 90-Grad-Drehung zu kurzzeitiger Beschickung je eines der Ausgangsanschlüsse 3 - 6 mit Spülflüssigkeit führen könnte.In the above-described position of the perforated disks 7, 10, 12 shown in FIG. 1 with respect to the output connections 3 - 6, the secondary passages 11 of the disk 10 lie in alignment with the associated main passages 8 of the perforated disks 7, 12, while the main passages 8 of the perforated disk 10 are rotated by 45 degrees and cannot overlap with the output connections 3 - 6. Due to the bypass free fields 15 between those main passages 8 of the disc 10, between which there are no secondary passages 11, the output connections 4 u. 5 closed after these bypass-free fields 15 enter in this area between the main passages 8 of the perforated disks 7, 12. By rotating all three perforated disks 7, 10, 12 together in steps of 90 degrees, the output connections 3 - 6 can then communicate in pairs with the input connection 2. If the perforated disk 12 is also rotated by 90 degrees with respect to the position shown in FIG. 5, then an otherwise free flow path is closed by one of the bypass-free fields 15 of the perforated disk 12 the 90-degree rotation could lead to brief loading of one of the output connections 3 - 6 with flushing liquid.

Soll dagegen nur jeweils einer der Ausgangsanschlüsse 3 - 6 in Strömungsverbindung mit dem Eingangsanschluß 2 gebracht werden, dann genügt es, die Lochscheiben in der in den Fig. 3 bis 5 bezeigten Grundstellung miteinander zu verriegeln und über ein entsprechendes Schrittschaltgetriebe zunächst in einem ersten Schritt um 45 Grad und in den weiteren Schritten um jeweils 90 Grad zu verdrehen. Der Nebendurchgang 9 bestimmt dann mit den deckungsgleich liegenden Nebendurchgängen 11, 13 den Strömungsweg zwischen dem Eingangsanschluß 2 und dem jeweils angewählten Ausgangsanschluß 3 - 6.If, on the other hand, only one of the output connections 3 - 6 is to be brought into flow connection with the input connection 2, then it is sufficient to lock the perforated disks with one another in the basic position shown in FIGS 45 degrees and in the further steps by 90 degrees. The secondary passage 9 then determines, with the congruent secondary passages 11, 13, the flow path between the inlet connection 2 and the respectively selected outlet connection 3-6.

Sollen alle vier Ausgangsanschlüsse 3 - 6 gleichzeitig über den Eingangsanschluß 2 mit Spülflüssigkeit gespeist werden, dann geschieht dies dann, wenn die Lochscheiben 7, 10, 12 in der in den Fig. 3 - 5 gezeigten Grundstellung belassen werden.If all four output connections 3 - 6 are to be fed with rinsing liquid simultaneously via the input connection 2, this happens when the perforated disks 7, 10, 12 are left in the basic position shown in FIGS. 3 - 5.

Wenn zwei diametral gegenüberliegende Ausgangsanschlüsse 3-6 wechselweise mit dem Eingangsanschluß 2 in Strömungsverbindung gebracht werden sollen, dann kann die Lochscheibe 7 in der Grundposition gemäß Fig. 3 belassen werden, während die mittlere Lochscheibe 10 im Uhrzeigersinn um 90 Grad und die dritte Lochscheibe 12 um 45 Grad zu verdrehen wäre. Anschließend braucht entweder nur die dritte Lochscheibe 12 oder alle drei Lochscheiben gemeinsam in gegeneinander verriegelter Position jeweils um 90 grad gedreht zu werden. In weiteren Stellungskombinationen dieser Lochscheiben und kombinierten Stellschritten von 45 Grad und 90 Grad lassen sich abwechselnd mehrere oder nur einer der Ausgangsanschlüsse 3 - 6 in Strömungsverbindung mit dem Eingangsanschluß 2 bringen.If two diametrically opposite output connections 3-6 are to be brought into flow connection alternately with the input connection 2, then the perforated disk 7 can be left in the basic position according to FIG. 3, while the middle perforated disk 10 clockwise by 90 degrees and the third perforated disk 12 by Would be rotated 45 degrees. Subsequently, either only the third perforated disk 12 or all three perforated disks need to be rotated together by 90 degrees in a mutually locked position. In further position combinations of these perforated disks and combined positioning steps of 45 degrees and 90 degrees, several or only one of the output connections 3 - 6 can alternately be brought into flow connection with the input connection 2.

Die Ausgangsanschlüsse 3 - 6 sind vorliegend winkelgleich zueinander versetzt und die Lochscheiben 7, 10, 12 konzentrisch im Gehäuse 1 auf Betätigungswellen 16,17,18. gelagert. Dabei können abweichend von der dargestellten Form mit vier Ausgangsanschlüssen auch eine andere Anzahl von Ausgangsanschlüssen vorgesehen sein, wobei dann die Winkellagen der Haupt- und Nebendurchgänge 8, 9, 11, 13 entsprechend anzupassen sind. Jeder der Lochscheiben kann ein eigener Antrieb zugeordnet sein, wenn nicht ein passendes Mehrfachgetriebe mit steuerbaren Kupplungseinrichtungen vorgesehen ist. Sind Einzelantriebe vorgesehen, dann ist es zweckmäßig, den Bewegungsablauf so zu synchronisieren, daß eine ordnungsgemäße Überdeckung der Durchgänge im Bereich des jeweiligen Ausgangsanschlusses 3 - 6 gegeben ist. Bei einem Mehrfachgetriebe wird dagegen vorzugsweise nach dem Einstellen der Durchgangswege, in welchen eine Überdeckung der Durchgänge gefordert wird, eine gegenseitige Verriegelung der Getriebeteile vorgenommen, so daß die Lochscheiben anschließend gemeinsam verdreht werden. Für die Steuerung der Lochscheiben können auch Schrittmotoren verwendet werden, deren Schrittweite dem Abstand zwischen einem Haupt- und einem Nebendurchgang entspricht.In the present case, the output connections 3 - 6 are offset at the same angle to one another and the perforated disks 7, 10, 12 are concentric in the housing 1 on actuating shafts 16, 17, 18. stored. Different from the form shown with four output connections, a different number of output connections can also be provided, the angular positions of the main and secondary passages 8, 9, 11, 13 then having to be adapted accordingly. Each of the perforated disks can be assigned its own drive unless a suitable multiple gear with controllable coupling devices is not provided. If individual drives are provided, then it is expedient to synchronize the movement sequence in such a way that the passages in the area of the respective output connection 3 - 6 are properly covered. In the case of a multiple gearbox, on the other hand, after setting the passageways in which an overlap of the passageways is required, the gearbox parts are mutually locked so that the perforated disks are then rotated together. Stepper motors can also be used to control the perforated disks, the step size of which corresponds to the distance between a main and a secondary passage.

Werden anstelle von drehbar gelagerten Lochscheiben geradlinig oder nicht um 360 Grad verstellbare Lochschieber verwendet, dann ist es zweckmäßig, die Ansteuerung dieser einzelnen Lochschieber über ein Getriebe mit Steuernocken an der zugehörigen Welle vorzunehmen. Auch kann der Antrieb der Lochschieber oder Lochscheiben über eine Friktionskupplung und Sperrklinken erfolgen.If, instead of rotatable perforated discs, straight or non-360 degree adjustable slide valves are used, it is advisable to control these individual slide valves using a gearbox with control cams on the associated shaft. The perforated slide or perforated discs can also be driven via a friction clutch and pawls.

Claims (13)

1. Geschirrspülmaschine mit einem elektromechanischen Mehrwegventil als Umsteuervorrichtung mit einem gemeinsamen Eingangsanschluß und getrennten Ausgangsanschlüssen, über die Sprühvorrichtungen strömungsmäßig in veränderbarer Folge an eine Umwälzpumpe anschaltbar sind, dadurch gekennzeichnet, daß das Mehrwegeventil wenigstens zwei unabhängig voneinander verstellbare Lochschieber (7,10,12) in einem Gehäuse (1) aufweist, daß die Lochschieber (7,10,12) dicht und flächig aufeinander und über die Ausgansanschlüsse (3-6) gleitend gelagert sind sowie jeweils eine der Anzahl und örtlichen Anordnung der Ausgangsanschlüsse (3-6) entsprechende Zahl von Hauptdurchgängen (8) aufweisen, daß wenigstens ein Lochschieber (7) mindestens einen zusätzlichen Nebendurchgang (9) und ein Lochschieber (10,12) mindestens zwei zusätzliche Nebendurchgänge (11,13) versetzt zu benachbarten Hauptdurchgängen (8) aufweise und daß wenigstens zwischen zwei Hauptdurchgängen (8) bei jedem Lochschieber ein nebendurchgangsfreies Feld (15) vorgesehen ist.1. Dishwasher with an electromechanical multi-way valve as a reversing device with a common input connection and separate output connections via which spray devices can be connected to a circulation pump in a variable sequence in terms of flow, characterized in that the multi-way valve has at least two independently adjustable slide valves (7, 10, 12) in A housing (1) has that the hole slides (7, 10, 12) are mounted close to one another and slidably over the outlet connections (3-6), and a number corresponding to the number and local arrangement of the outlet connections (3-6) of main passages (8) have at least one slide valve (7) at least one additional secondary passage (9) and one slide valve (10,12) have at least two additional secondary passages (11,13) offset to adjacent main passages (8) and that at least between two main passes (8) for each hole slider a bypass-free field (15) is provided. 2. Geschirrspülmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Ausgangsanschlüsse (3-6) winkelgleich zueinander versetzt sind und die Lochschieber als zentral gelagerte Lochscheiben (7,10,12) ausgebildet sind.2. Dishwasher according to claim 1, characterized in that the output connections (3-6) are offset at the same angle to one another and the perforated slide are designed as centrally mounted perforated disks (7, 10, 12). 3. Geschirrspülmaschine nach Anspruch 2, dadurch gekennzeichnet, daß vier Ausgangsanschlüsse (3-6) vorgesehen sind.3. Dishwasher according to claim 2, characterized in that four output connections (3-6) are provided. 4. Geschirrspülmaschine nach Anspruch 2, dadurch gekennzeichnet, daß in einer der Lochscheiben (10) zwei Nebendurchgänge (11) einerseits um 45 Grad gegenüber benachbarten Hauptdurchgängen (8) and andererseits um 90 Grad gegeneinander versetzt angeordnet sind.4. Dishwasher according to claim 2, characterized in that in one of the perforated disks (10) two secondary passages (11) on the one hand by 45 degrees relative to adjacent main passages (8) and on the other hand are offset by 90 degrees. 5. Geschirrspülmaschine nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß in einer der Lochscheiben (12) zwei Nebendurchgänge (13) um 45 Grad gegenüber benachbarten Hauptdurchgängen (8) und um 180 Grad gegeneinander versetzt angeordnet sind.5. Dishwasher according to claim 3 or 4, characterized in that in one of the perforated disks (12) two secondary passages (13) are arranged offset by 45 degrees relative to adjacent main passages (8) and by 180 degrees. 6. Geschirrspümaschine nach Anspruch 3 oder einem der folgenden, dadurch gekennzeichnet, daß in einer der Lochscheiben (7) lediglich ein Nebendurchgang (9) um 45 Grad gegenüber benachbarten Hauptdurchgängen (8) versetzt angeordnet ist.6. Dishwasher according to claim 3 or one of the following, characterized in that in one of the perforated disks (7) only one secondary passage (9) is arranged offset by 45 degrees with respect to adjacent main passages (8). 7. Geschirrspülmaschine nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß jedem Lochschieber (7,10,12) ein eigener steuerbarer Antrieb zugeordnet ist.7. Dishwasher according to claim 1 or one of the following, characterized in that each hole slide (7,10,12) is assigned its own controllable drive. 8. Geschirrspülmaschine nach Anspruch 2 oder einem der folgenden, dadurch gekennzeichnet, daß die Lochscheiben (7,10,22) auf konzentrisch gelagerten Betätigungswellen (16,17,18) festgesetzt sind, die mit dem jeweiligen Antrieb in Antriebsverbindung stehen.8. Dishwasher according to claim 2 or one of the following, characterized in that the perforated disks (7,10,22) are fixed on concentrically mounted actuating shafts (16,17,18) which are in drive connection with the respective drive. 9. Geschirrspülmaschine nach Anspruch 8, dadurch gekennzeichnet, daß die Lochscheiben (7,10,12) in wählbaren gegenseitigen Zuordnungen der Haupt- bzw. Nebendurchgänge gegeneinander arretierbar und über einen der Antriebe gemeinsam antreibbar sind.9. Dishwasher according to claim 8, characterized in that the perforated disks (7, 10, 12) can be locked against one another in selectable mutual assignments of the main and secondary passages and can be driven together via one of the drives. 10. Geschirrspülmaschine nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß die Lochschieber (7,10,12) über Schrittmotoren gesteuert sind, deren Schrittweite dem Abstand zwischen einem Haupt- und einem Nebendurchgang entspricht.10. Dishwasher according to claim 1 or one of the following, characterized in that the perforated slide (7, 10, 12) are controlled by stepper motors, the step size of which corresponds to the distance between a main and a secondary passage. 11. Geschirrspülmaschine nach wenigstens einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Ansteuerung der einzelnen Lochschieber (7,10,12) über ein Getriebe mit Steuernocken an der zugehörigen Welle erfolgt.11. Dishwasher according to at least one of claims 1 to 9, characterized in that the control of the individual hole slide (7,10,12) via a gear with control cam on the associated shaft. 12. Geschirrspülmaschine nach wenigstens einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Ansteuerung der einzelnen Lochscheiben (7,10,12) über ein Getriebe mit Steuernocken an einer gesonderten Welle des Getriebes erfolgt.12. Dishwasher according to at least one of claims 1 to 9, characterized in that the control of the individual perforated disks (7, 10, 12) takes place via a gear with control cams on a separate shaft of the gear. 13. Geschirrspülmaschine nach wenigstens einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Antrieb der Lochschieber (7,10,12) über eine Friktionskupplung und Sperrlinken erfolgt.13. Dishwasher according to at least one of claims 1 to 9, characterized in that the perforated slide (7, 10, 12) is driven via a friction clutch and locking pawls.
EP19900100792 1989-02-14 1990-01-16 Dishwashing machine compromising an electro-mechanic reversing device Withdrawn EP0383028A3 (en)

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Application Number Priority Date Filing Date Title
DE3904359 1989-02-14
DE19893904359 DE3904359A1 (en) 1988-05-13 1989-02-14 Dishwashing machine with an electromechanical changeover device

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EP0383028A2 true EP0383028A2 (en) 1990-08-22
EP0383028A3 EP0383028A3 (en) 1992-05-06

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EP0585905A3 (en) * 1992-09-04 1994-03-23 Daewoo Electronics Co., Ltd Dishwashing machine
EP0585905A2 (en) * 1992-09-04 1994-03-09 Daewoo Electronics Co., Ltd Dishwashing machine
WO2000022973A1 (en) * 1998-10-16 2000-04-27 Arçelik A.Ş. Dishwashing machine with independently controlled washing racks
CN100393270C (en) * 2002-05-23 2008-06-11 松下电器产业株式会社 Cleaning machine for tableware
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EP1973459A4 (en) * 2005-12-09 2016-12-21 Lg Electronics Inc Dish washer
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US8834644B2 (en) 2007-08-31 2014-09-16 Bsh Bosch Und Siemens Hausgeraete Gmbh Apparatus and method for the operation of a dishwasher
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