EP0318109B1 - Tub for washing machines - Google Patents

Tub for washing machines Download PDF

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Publication number
EP0318109B1
EP0318109B1 EP88202650A EP88202650A EP0318109B1 EP 0318109 B1 EP0318109 B1 EP 0318109B1 EP 88202650 A EP88202650 A EP 88202650A EP 88202650 A EP88202650 A EP 88202650A EP 0318109 B1 EP0318109 B1 EP 0318109B1
Authority
EP
European Patent Office
Prior art keywords
tub
connection means
base body
main body
rear wall
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
Application number
EP88202650A
Other languages
German (de)
French (fr)
Other versions
EP0318109A1 (en
Inventor
Lutz Scharf
Walter Dunst
Horst Sperling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauknecht Hausgeraete GmbH
Whirlpool International BV
Original Assignee
Bauknecht Hausgeraete GmbH
Whirlpool International BV
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.)
Filing date
Publication date
Application filed by Bauknecht Hausgeraete GmbH, Whirlpool International BV filed Critical Bauknecht Hausgeraete GmbH
Publication of EP0318109A1 publication Critical patent/EP0318109A1/en
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Publication of EP0318109B1 publication Critical patent/EP0318109B1/en
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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
    • D06F37/26—Casings; Tubs
    • D06F37/264—Tubs provided with reinforcing structures, e.g. ribs, inserts, braces
    • 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
    • D06F37/26—Casings; Tubs
    • D06F37/265—Counterweights mounted to the tub; Mountings therefor
    • 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
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/268—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices

Definitions

  • the invention relates to a tub for washing machines o / or damper, with a bearing cross for rotatably supporting the laundry drum and with at least one counterweight.
  • a generic tub (DE-OS 27 04 498) support rings are arranged on the front and rear wall, which are connected via the cross members. Arm ends of the bearing cross and a drive motor for the drum can be connected to the support rings.
  • Relief of the tub made of high-quality material is sought, so that its base body and the front and rear walls can be provided with a smaller wall thickness.
  • a tensioning strap is provided in each case encompasses a part of the container casing and the outer edges of the front or rear wall and the support rings.
  • the known tub has a large number of parts and thus requires a lot of effort in the manufacture and assembly of these parts.
  • the known suds container is a so-called corset construction, in which the base body essentially has the function of absorbing a detergent solution during washing.
  • the force transmission of the dynamic forces coming from the laundry drum, such as, for example, unbalance forces, into a housing of the washing machine essentially takes place via the support rings to the crossbeams, which are connected to the base body only via the support rings.
  • the forces from the traverses are fed into the housing via springs and dampers.
  • tubs with a self-supporting construction are known. Forces are transferred from the drum to the base body via the bearing cross and from there to the housing of the washing machine via springs and dampers.
  • Such self-supporting constructions require a relatively large, more expensive to manufacture, wall thickness of the tub.
  • the invention has for its object to design a tub of the type mentioned so that it is simple and inexpensive to manufacture.
  • cross members are connected at least in regions to the base body and have first connection means for the bearing cross and second connection means for at least one ring-shaped balance weight.
  • both the crossbeams and the base body contribute to the transmission of forces from the washing drum into the housing of the washing machine .
  • the wall thickness of the tub can thus be dimensioned relatively thin, because forces can be transmitted both via the base body and via the cross members.
  • the second Connection means and at least one ring-shaped balance weight is stiffened the tub. Forces originating from the balance weight and transmitted from the drum to the bearing cross are transmitted through the cross member and at the same time via its connection to the base body.
  • the tub can be formed from relatively thin-walled sheet metal without sacrificing dimensional stability or reducing the load-bearing behavior.
  • the balance weight is closed ring-shaped. A particularly good stiffening of the adjacent part of the base body or of the front or rear wall results in a simple manner via the connection of the crossbeams by the closed balancing weight.
  • first and / or second connection means have sections projecting over the base body in the axial direction. Through these sections, the bearing cross and the counterweight can be attached in an easy to manufacture and assemble manner, without the need for direct connection means to the base body or the front or rear wall.
  • the base body has a region connectable to the first or second connection means.
  • Such an area has a stiffening effect and can be used as a contact surface for a sealing connection to the front or rear wall.
  • first and / or second connection means have through openings for fastening screws.
  • Bearing cross and / or counterweight can thus be connected in a particularly simple manner via a screw connection to the cross members.
  • the first and / or second connection means have holding elements which can be connected to the front or rear wall.
  • holding elements for example, counterweights can be connected to the trusses particularly easily.
  • the stiffening of the tub can be further increased by connecting the holding elements to the front or rear wall.
  • fastening regions of the bearing cross which can be connected to the first connecting means are designed in a ring shape and the rear wall can be fastened between the fastening regions and the first connecting means.
  • fastening areas of the bearing cross that can be connected to the first connection means are designed in the form of a circular arc means that a good connection of the bearing cross to the cross members is possible in a simple manner. Because the front or back wall between the attachment areas and the first connecting means can be fastened, this can be easily installed or removed together with the bearing cross in the base body.
  • the simplified assembly enables at least partial automation of the assembly of suds containers through the use of handling devices, it being possible to start with base bodies provided with traverses as preassembled structural units. Because the front or rear wall can be connected via the fastening area of the bearing cross and the first connecting means, a laundry drum can be easily removed from a tub and thus a washing machine, for example for maintenance or repair purposes.
  • front or rear wall can be connected to the base body by folding. Pre-assembled units can thus already have a front or rear wall.
  • the tub designated overall in Fig. 1 and 2 with 1 has an essentially hollow cylindrical base body 3.
  • a front wall 5 also made of sheet metal, is connected to a loading opening 7 via an essentially tight fold.
  • the side of the base body 3 opposite the front wall 5 can be at least partially locked via a rear wall 9.
  • pairs of identical cross members 11 and 13 are arranged opposite each other in the horizontal direction.
  • the crossbeams 11, 13 are shaped as sheet metal profile parts in a substantially U-shape and are connected to the base body 3 by spot welding, for example, over the length thereof.
  • the cross members 11 have semicircular openings as connecting means 15 for springs.
  • Each crossmember 13 has crossbars 17 as connecting means for dampers.
  • the tub 1 can be held in a housing (not shown) of a washing machine so as to be capable of oscillation by means of springs or connectable dampers which can be hooked into the connecting means 15, 17 for springs or dampers in a manner not shown.
  • the cross members 11, 13 In order to fasten a bearing cross 19 for the rotatable mounting of a laundry drum 21 in the tub 1, the cross members 11, 13 have, as the first connecting means 23, a section which essentially closes with the base body 3; the base body 3 thus has a region that can be connected to the first connection means 23.
  • the bearing cross 19 has circular arc-shaped fastening regions 25 which can be connected to the first connecting means 23 and are formed on the radially outer end of arms 26 of the bearing cross 19.
  • the rear wall 9 has a cylindrical region 29 which can be clamped between the outer circumference of the circular-arc-shaped fastening regions 25 and the first connection means 23.
  • the rear wall 9 can thus be easily connected to the cross members 11, 13 and the base body 3.
  • a sealing ring 35 can be clamped between correspondingly shaped areas of both parts.
  • the first connection means 23 have through openings (not shown) for the passage of fastening screws 33.
  • the cross members 11, 13 have the second connecting means 37 axially opposite the first connecting means 23, via which a counterweight 39 can be connected.
  • the second connection means 37 which, like the first connection means 23, have the same design for all the cross members 11, 13, have sections projecting over the base body 3 in the axial direction.
  • Pot-shaped holding elements 41 can be connected to the second connection means 37, for example by welding.
  • the holding elements 41 which can be produced as sheet metal parts each have a contact surface 43 which extends in a plane perpendicular to the axial direction for holding tabs 45 which are formed on the counterweight 39 and which can be integrated into the counterweight 39.
  • the holding tabs 45 can be screwed to the latter via a screw 47.
  • the holding elements 41 each have a side wall 49 which can be connected at least in regions to the front wall 5, for example by screwing or welding.
  • the high rigidity of the counterweight 39 and its connection to the cross members 11, 13 also result in a stiffening of the adjacent areas of the front wall 5 and the base body 3.
  • the traverses 11, 13 can be connected in this area.
  • the first and second connection means 23 and 37 of the crossbeams 11, 13 are each stiffened together, so that forces from the balance weight 39 and the bearing cross 19 act well on the Trusses 11, 13 are transferable.
  • Forces introduced into the crossbeams 11, 13, which can be caused, for example, by imbalance excitation of the drum 21, are passed on from the connecting means 15, 17 into the housing via springs or dampers.
  • the dimensions of the crossbeams 11, 13 and the wall thickness of the base body 3 can be coordinated with one another in such a way that stable, effective load-bearing behavior can be achieved with a relatively small wall thickness of the base body 3 and the front and rear walls 5, 9. Due to the small number of parts and the easy installation and removal of the drum 21 together with the bearing cross 19 and the rear wall 9, the manufacture and assembly of the tub 1 according to the invention is simple and possible in at least partially automated manner. As a preassembled unit, the base body 3 can be connected to the cross members 11, 13 and the front wall 5.
  • the bearing cross 19 can be connected in a manner not shown contain a drum drive so that essentially no additional fasteners are required.
  • a pulley 53 can be placed on a shaft 51 of the drum 21, opposite the rear wall 9, which can be installed or removed together with the washing drum 21 and the bearing cross 19.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Drying Of Solid Materials (AREA)

Description

Die Erfindung bezieht sich auf einen Laugenbehälter für Waschmaschinen o. dgl. mit einem im wesentlichen hohlzylinderförmigen über eine Vorder- bzw. Rückwand zumindest teilweise dichtend verschlossenen Grundkörper zur Aufnahme einer Wäschetrommel, mit in axialer Richtung am Außenmantel des Grundkörpers angeordneten Traversen mit Verbindungsmitteln für Federn und/oder Dämpfer, mit einem Lagerkreuz zur drehbaren Lagerung der Wäschetrommel und mit mindestens einem Ausgleichsgewicht.The invention relates to a tub for washing machines o / or damper, with a bearing cross for rotatably supporting the laundry drum and with at least one counterweight.

Bei einem gattungsgemäßen Laugenbehälter (DE-OS 27 04 498) sind an der Vorder- und Rückwand Tragringe angeordnet, die über die Traversen verbunden sind. Mit den Tragringen sind Armenden des Lagerkreuzes und ein Antriebsmotor für die Trommel verbindbar. Durch die Anordnung der Tragringe wird eine Entlastung des aus hochwertigem Material bestehenden Laugenbehälters angestrebt, so daß dessen Grundkörper sowie die Vorder- und die Rückwand mit geringerer Wanddicke vorgesehen werden können. Für die Befestigung der Vorder- oder Rückwand mit zugeordneten Tragringen an dem Grundkörper ist jeweils ein Spannband vorgesehen, das einen Teil des Behältermantels sowie Außenränder der Vorder- bzw. Rückwand und der Tragringe umgreift. Der bekannte Laugenbehälter weist eine Vielzahl von Teilen auf und erfordert somit einen großen Aufwand beim Herstellen und beim Montieren dieser Teile. Bei dem bekannten Laugenbehälter handelt es sich um eine sogenannte Korsett-Konstruktion, bei dem der Grundkörper im wesentlichen die Funktion hat, während des Waschens eine Waschlauge aufzunehmen. Die Kraftübertragung der von der Wäschetrommel kommenden dynamischen Kräfte, wie bspw. Unwuchtkräfte, in ein Gehäuse der Waschmaschine erfolgt im wesentlichen über die Tragringe zu den Traversen, die mit dem Grundkörper nur über die Tragringe verbunden sind. Von den Traversen werden die Kräfte über Federn und Dämpfer in das Gehäuse geleitet. Dem Vorteil, daß die Blechdicke des Grundkörpers gering sein kann, steht der Nachteil gegenüber, daß eine derartige Korsett-Konstruktion eine große Anzahl von Teilen aufweist.In a generic tub (DE-OS 27 04 498) support rings are arranged on the front and rear wall, which are connected via the cross members. Arm ends of the bearing cross and a drive motor for the drum can be connected to the support rings. By arranging the support rings, relief of the tub made of high-quality material is sought, so that its base body and the front and rear walls can be provided with a smaller wall thickness. For the attachment of the front or rear wall with associated support rings on the base body, a tensioning strap is provided in each case encompasses a part of the container casing and the outer edges of the front or rear wall and the support rings. The known tub has a large number of parts and thus requires a lot of effort in the manufacture and assembly of these parts. The known suds container is a so-called corset construction, in which the base body essentially has the function of absorbing a detergent solution during washing. The force transmission of the dynamic forces coming from the laundry drum, such as, for example, unbalance forces, into a housing of the washing machine essentially takes place via the support rings to the crossbeams, which are connected to the base body only via the support rings. The forces from the traverses are fed into the housing via springs and dampers. The advantage that the sheet thickness of the base body can be small is offset by the disadvantage that such a corset construction has a large number of parts.

Es ist weiter bekannt (DE-OS 16 10 303), den Laugenbehälter durch Nieten oder Schweißen mit einer unten liegenden Trägerplatte und diametral gegenüberliegenden, keine Verbindungsmittel aufweisenden, Traversen zu verbinden. Die Trägerplatte, die Verbindungsmittel für Federn und Dämpfer aufweist, ist über Tragarme eines Lagerkreuzes mit den Traversen verbunden. Dadurch, daß der Grundkörper durch die Trägerplatte und die Traversen umschlossen ist,wird er entlastet, so daß er aus verhältnismäßig dünnwandigem Material herstellbar ist. Dabei ist jedoch die Herstellung der Trägerplatte sowie deren Befestigung an dem Grundkörper aufwendig.It is further known (DE-OS 16 10 303) to connect the tub by riveting or welding to a support plate located underneath and diametrically opposed trusses which have no connecting means. The carrier plate, which has connecting means for springs and dampers, is connected to the crossbeams via support arms of a bearing cross. The fact that the base body is enclosed by the carrier plate and the cross members, it is relieved, so that it can be produced from relatively thin-walled material. However, the manufacture of the carrier plate and its attachment to the base body are complex.

Es sind weiterhin Laugenbehälter mit einer selbsttragenden Konstruktion bekannt. Über das Lagerkreuz werden dabei Kräfte von der Trommel auf den Grundkörper übertragen und von dort über Federn und Dämpfer an das Gehäuse der Waschmaschine weitergeleitet. Derartige selbsttragende Konstruktionen erfordern eine relativ große, die Herstellung verteuernde, Wanddicke des Laugenbehälters.Also tubs with a self-supporting construction are known. Forces are transferred from the drum to the base body via the bearing cross and from there to the housing of the washing machine via springs and dampers. Such self-supporting constructions require a relatively large, more expensive to manufacture, wall thickness of the tub.

Der Erfindung liegt die Aufgabe zugrunde, einen Laugenbehälter der genannten Gattung so auszubilden, daß er einfach und kostengünstig herstellbar ist.The invention has for its object to design a tub of the type mentioned so that it is simple and inexpensive to manufacture.

Diese Aufgabe ist bei einem gattungsgemäßen Laugenbehälter dadurch gelöst, daß die Traversen zumindest bereichsweise mit dem Grundkörper verbunden sind und erste Anschlußmittel für das Lagerkreuz sowie zweite Anschlußmittel für mindestens ein ringförmig ausgebildetes Ausgleichsgewicht aufweisen.This object is achieved with a generic tub in that the cross members are connected at least in regions to the base body and have first connection means for the bearing cross and second connection means for at least one ring-shaped balance weight.

Dadurch, daß die Traversen zumindest bereichsweise mit dem Grundkörper verbunden sind und erste Anschlußmittel für das Lagerkreuz sowie zweite Anschlußmittel für mindestens ein ringförmig ausgebildetes Ausgleichsgewicht aufweisen, tragen sowohl die Traversen als auch der Grundkörper zur Übertragung von Kräften von der Wäschetrommel in das Gehäuse der Waschmaschine bei. Ohne daß es einer Korsett-Konstruktion mit einer großen Teilevielfalt bedarf,kann somit die Wanddicke des Laugenbehälters relativ dünn bemessen sein, weil Kräfte sowohl über den Grundkörper als auch über die Traversen übertragbar sind. Durch die zweite Anschlußmittel und mindestens ein ringförmig ausgebildetes Ausgleichsgewicht wird der Laugenbehälter versteift. Von dem Ausgleichsgewicht ausgehende sowie von der Trommel auf das Lagerkreuz übertragene Kräfte werden über die Traverse und gleichzeitig über deren Verbindung mit dem Grundkörper durch diesen übertragen. Da die Traversen mit dem Grundkörper zumindest bereichsweise verbunden sind, ergibt sich eine Verteilung der in den Grundkörper geleiteten Kräfte, so daß örtliche Kraft- und daraus resultierende Spannungsspitzen vermieden sind. Aus diesem Grund kann der Laugenbehälter ohne Einbuße an Formstabilität oder einer Minderung des Tragverhaltens aus relativ dünnwandigem Blech geformt werden.Because the crossbeams are connected to the base body at least in some areas and have first connection means for the bearing cross and second connection means for at least one ring-shaped counterweight, both the crossbeams and the base body contribute to the transmission of forces from the washing drum into the housing of the washing machine . Without the need for a corset construction with a large variety of parts, the wall thickness of the tub can thus be dimensioned relatively thin, because forces can be transmitted both via the base body and via the cross members. By the second Connection means and at least one ring-shaped balance weight is stiffened the tub. Forces originating from the balance weight and transmitted from the drum to the bearing cross are transmitted through the cross member and at the same time via its connection to the base body. Since the crossbeams are connected to the base body at least in regions, there is a distribution of the forces directed into the base body, so that local force peaks and resulting stress peaks are avoided. For this reason, the tub can be formed from relatively thin-walled sheet metal without sacrificing dimensional stability or reducing the load-bearing behavior.

Es ist vorteilhaft, daß das Ausgleichsgewicht geschlossen ringförmig ausgebildet ist. Über die Verbindung der Traversen durch das geschlossene Ausgleichsgewicht ergibt sich in einfacher Weise eine besonders gute Versteifung desbenachbarten Teils des Grundkörpers bzw. der Vorder-  oder Rückwand.It is advantageous that the balance weight is closed ring-shaped. A particularly good stiffening of the adjacent part of the base body or of the front or rear wall results in a simple manner via the connection of the crossbeams by the closed balancing weight.

Es hat sich weiter als vorteilhaft herausgestellt, daß die ersten und/oder zweiten Anschlußmittel über den Grundkörper in axialer Richtung ragende Abschnitte aufweisen. Durch diese Abschnitte können in einfach herzustellender und zu montierender Weise das Lagerkreuz und das Ausgleichsgewich befestigt werden, ohne daß es direkter Anschlußmittel an den Grundkörper oder die Vorder- bzw. Rückwand bedarf.It has also been found to be advantageous that the first and / or second connection means have sections projecting over the base body in the axial direction. Through these sections, the bearing cross and the counterweight can be attached in an easy to manufacture and assemble manner, without the need for direct connection means to the base body or the front or rear wall.

Es kann aber auch vorteilhaft sein, daß der Grundkörper einen mit dem ersten oder zweiten Anschlußmitteln verbindbaren Bereich aufweist. Ein derartiger Bereich wirkt versteifend und ist als Anlagefläche für eine dichtende Verbindung zu der Vorder- oder Rückwand verwendbar.But it can also be advantageous that the base body has a region connectable to the first or second connection means. Such an area has a stiffening effect and can be used as a contact surface for a sealing connection to the front or rear wall.

Es hat sich ferner als vorteilhaft erwiesen, daß erste und/oder zweite Anschlußmittel Durchgangsöffnungen für Befestigungsschrauben aufweisen. Lagerkreuz und/oder Ausgleichsgewicht sind dadurch in besonders einfacher Weise über eine Schraubverbindung mit den Traversen verbindbar.It has also proven to be advantageous for the first and / or second connection means to have through openings for fastening screws. Bearing cross and / or counterweight can thus be connected in a particularly simple manner via a screw connection to the cross members.

Bei einer bevorzugten Ausführungsform weisen die ersten und/oder zweiten Anschlußmittel Halteelemente auf, die mit der Vorder- oder Rückwand verbindbar sind. Über die Halteelemente sind bspw. Ausgleichsgewichte besonders einfach mit den Traversen verbindbar. Durch die Verbindung der Halteelemente mit der Vorder- oder Rückwand kann die Versteifung des Laugenbehälters weiter erhöht werden.In a preferred embodiment, the first and / or second connection means have holding elements which can be connected to the front or rear wall. Using the holding elements, for example, counterweights can be connected to the trusses particularly easily. The stiffening of the tub can be further increased by connecting the holding elements to the front or rear wall.

Bei einer weiteren bevorzugten Ausführungsform sind mit dem ersten Anschlußmittel verbindbare Befestigungsbereiche des Lagerkreuzes ringförmig ausgebildet und zwischen den Befestigungsbereichen und den ersten Verbindungsmitteln ist die Rückwand befestigbar.In a further preferred embodiment, fastening regions of the bearing cross which can be connected to the first connecting means are designed in a ring shape and the rear wall can be fastened between the fastening regions and the first connecting means.

Dadurch, daß mit dem ersten Anschlußmittel verbindbare Befestigungsbereiche des Lagerkreuzes kreisbogenförmig ausgebildet ist, ist in einfacher Weise eine gute Verbindung des Lagerkreuzes mit den Traversen möglich. Da die Vorder- oder Rückwand zwischen den Befestigungsbereichen und den ersten Verbindungsmitteln befestigbar ist, kann diese zusammen mit dem Lagerkreuz in einfacher Weise in den Grundkörper ein- bzw. ausgebaut werden.The fact that fastening areas of the bearing cross that can be connected to the first connection means are designed in the form of a circular arc means that a good connection of the bearing cross to the cross members is possible in a simple manner. Because the front or back wall between the attachment areas and the first connecting means can be fastened, this can be easily installed or removed together with the bearing cross in the base body.

Die vereinfachte Montage ermöglicht über den Einsatz von Handhabungsgeräten eine zumindest teilweise Automatisierung der Montage von Laugenbehältern, wobei von mit Traversen versehenen Grundkörpern als vormontierten Baueinheiten ausgegangen werden kann. Dadurch, daß die Vorder- oder Rückwand über den Befestigungsbereich des Lagerkreuzes und die ersten Verbindungsmittel verbindbar ist, ist eine Wäschetrommel bspw. zu Wartungs- oder Reparaturzwecken einfach aus einem Laugenbehälter und damit einer Waschmaschine ausbaubar.The simplified assembly enables at least partial automation of the assembly of suds containers through the use of handling devices, it being possible to start with base bodies provided with traverses as preassembled structural units. Because the front or rear wall can be connected via the fastening area of the bearing cross and the first connecting means, a laundry drum can be easily removed from a tub and thus a washing machine, for example for maintenance or repair purposes.

Es hat sich als vorteilhaft erwiesen, daß die Vorder- oder Rückwand mit dem Grundkörper durch Falzen verbindbar ist. Vormontierbare Baueinheiten können somit bereits eine Vorder- oder Rückwand aufweisen.It has proven to be advantageous that the front or rear wall can be connected to the base body by folding. Pre-assembled units can thus already have a front or rear wall.

Es hat sich weiterhin als vorteilhaft herausgestellt, daß mit dem Grundkörper vier Traversen, von denen jeweils zwei gleich ausgebildet sind, verbindbar sind. Durch die Anordnung von vier Traversen ergibt sich eine wirksame Lastverteilung zwischen dem Grundkörper und den Traversen und dadurch, daß diese paarweise gleich ausgebildet sind, vermindert sich die Teilevielfalt.It has also proven to be advantageous that four cross members, two of which are of identical design, can be connected to the base body. The arrangement of four crossbeams results in an effective load distribution between the base body and the crossbeams and the fact that these are of identical design in pairs reduces the number of parts.

Ein Ausführungsbeispiel ist anhand der Zeichnung erläutert.An embodiment is explained with reference to the drawing.

Es zeigen in vereinfachter schematischer Darstellung:

  • Figur 1 eine Vorderansicht eines erfindungsgemäßen Laugenbehälters und
  • Figur 2 einen Schnitt I-I nach Figur 1.
In a simplified schematic representation:
  • Figure 1 is a front view of a tub according to the invention and
  • FIG. 2 shows a section II according to FIG. 1.

Der in Fig. 1 und 2 insgesamt mit 1 bezeichnete Laugenbehälter weist einen im wesentlichen hohlzylinderförmigen Grundkörper 3 auf. An einer Seite des aus Edelstahlblech geformten Grundkörpers 3 ist über eine im wesentlichen dichte Falzung eine ebenfalls aus Blech geformte Vorderwand 5 mit einer Beschickungsöffnung 7 verbunden. Die der Vorderwand 5 gegenüberliegende Seite des Grundkörpers 3 ist über eine Rückwand 9 zumindest teilweise abschließbar. An dem Außenumfang des Grundkörpers 3 sind jeweils, einander in horizontaler Richtung gegenüberliegend, paarweise gleich ausgebildete Traversen 11 bzw. 13 angeordnet. Die Traversen 11, 13 sind als Blechprofilteile im wesentlichen U-förmig geformt und bspw. durch Punktschweißen über die Länge des Grundkörpers 3 mit diesem verbunden. Die Traversen 11 weisen als Verbindungsmittel 15 für Federn halbkreisförmige Öffnungen auf. Als Verbindungsmittel für Dämpfer weist jede Traverse 13 Querstege 17 auf. Über in die Verbindungsmittel 15, 17 für Federn bzw. für Dämpfer in nicht dargestellter Weise einhängbare Federn bzw. verbindbare Dämpfer kann der Laugenbehälter 1 in einem nicht dargestellten Gehäuse einer Waschmaschine schwingbeweglich gehaltert werden.The tub designated overall in Fig. 1 and 2 with 1 has an essentially hollow cylindrical base body 3. On one side of the base body 3 formed from stainless steel sheet, a front wall 5, also made of sheet metal, is connected to a loading opening 7 via an essentially tight fold. The side of the base body 3 opposite the front wall 5 can be at least partially locked via a rear wall 9. On the outer circumference of the base body 3, pairs of identical cross members 11 and 13 are arranged opposite each other in the horizontal direction. The crossbeams 11, 13 are shaped as sheet metal profile parts in a substantially U-shape and are connected to the base body 3 by spot welding, for example, over the length thereof. The cross members 11 have semicircular openings as connecting means 15 for springs. Each crossmember 13 has crossbars 17 as connecting means for dampers. The tub 1 can be held in a housing (not shown) of a washing machine so as to be capable of oscillation by means of springs or connectable dampers which can be hooked into the connecting means 15, 17 for springs or dampers in a manner not shown.

Zur Befestigung eines Lagerkreuzes 19 für die drehbare Lagerung einer Wäschetrommel 21 in dem Laugenbehälter 1 weisen die Traversen 11, 13 als erste Anschlußmittel 23 im wesentlichen mit dem Grundkörper 3 abschließende Abschnitt auf; der Grundkörper 3 hat somit einen mit dem ersten Anschlußmittel 23 verbindbaren Bereich. Das Lagerkreuz 19 hat mit dem ersten Anschlußmittel 23 verbindbare kreisbogenförmige Befestigungsbereiche 25, die am radial äußeren Ende von Armen 26 des Lagerkreuzes 19 ausgebildet sind.In order to fasten a bearing cross 19 for the rotatable mounting of a laundry drum 21 in the tub 1, the cross members 11, 13 have, as the first connecting means 23, a section which essentially closes with the base body 3; the base body 3 thus has a region that can be connected to the first connection means 23. The bearing cross 19 has circular arc-shaped fastening regions 25 which can be connected to the first connecting means 23 and are formed on the radially outer end of arms 26 of the bearing cross 19.

Die Rückwand 9 hat einen zylinderförmigen Bereich 29, der zwischen dem Außenumfang der kreisbogenförmigen Befestigungsbereiche 25 und den ersten Anschlußmitteln 23 klemmbar ist. Die Rückwand 9 ist somit einfach mit den Traversen 11, 13 und dem Grundkörper 3 verbindbar. Durch Anlage des zylinderförmigen Bereichs 29 an den sich zu dem ersten Anschlußmittel erstreckenden Bereich des Grundkörpers 3 ist eine dichte Verbindung zwischen diesem und der Rückwand 9 herstellbar. Für eine dichte Verbindung zwischen dem Grundkörper 3 und der Rückwand 9 ist zwischen entsprechend geformten Bereichen beider Teile ein Dichtring 35 klemmbar. Zum Verbinden der ersten Anschlußmittel 23 bzw. mit diesen verbundenen Bereichen des Grundkörpers 3 mit den Befestigungbereichen 25 weisen die ersten Anschlußmittel 23 nicht dargestellte Durchgangsöffnungen zum Durchführen von Befestigungsschrauben 33 auf.The rear wall 9 has a cylindrical region 29 which can be clamped between the outer circumference of the circular-arc-shaped fastening regions 25 and the first connection means 23. The rear wall 9 can thus be easily connected to the cross members 11, 13 and the base body 3. By placing the cylindrical region 29 against the region of the base body 3 which extends to the first connection means, a tight connection can be established between the latter and the rear wall 9. For a tight connection between the base body 3 and the rear wall 9, a sealing ring 35 can be clamped between correspondingly shaped areas of both parts. To connect the first connection means 23 or regions of the base body 3 connected to them with the fastening regions 25, the first connection means 23 have through openings (not shown) for the passage of fastening screws 33.

Den ersten Anschlußmitteln 23 axial gegenüberliegend weisen die Traversen 11, 13 zweite Anschlußmittel 37 auf, über di ein Ausgleichsgewicht 39 verbindbar ist. Die zweiten Anschlußmittel 37, die wie die ersten Anschlußmittel 23 für alle Traversen 11, 13 gleich ausgebildet sind, weisen in axialer Richtung über den Grundkörper 3 ragende Abschnitte auf. Mit den zweiten Anschlußmitteln 37 sind topfförmige Halteelemente 41 bspw. durch Schweißen verbindbar. Die als Blechformteile herstellbaren Halteelemente 41 haben jeweils eine in einer Senkrecht zur Achsrichtung liegenden Ebene verlaufende Anlagefläche 43 für entsprechend an dem Ausgleichsgewicht 39 ausgebildete Haltelaschen 45, die in das Ausgleichsgewicht 39 integrierbar sind. Zur Befestigung des Ausgleichsgewichts 39 an den Halteelementen 41 sind die Haltelaschen 45 mit diesen über eine Schraube 47 verschraubbar. Im Anschluß an die Anlagefläche 43 weisen die Halteelemente 41 jeweils eine Seitenwand 49 auf, die zumindest bereichsweise mit der Vorderwand 5 bspw. durch Schrauben oder Schweißen verbindbar ist. Es ergibt sich somit eine versteifte Verbindung für das Ausgleichsgewicht 39, das geschlossen ringförmig ausgebildet ist und somit selbst eine hohe Steifigkeit aufweist. Durch die hohe Steifigkeit des Ausgleichsgewichtes 39 und dessen Verbindung mit den Traversen 11, 13 ergibt sich auch eine Versteifung der benachbarten Bereiche der Vorderwand 5 und des Grundkörpers 3.The cross members 11, 13 have the second connecting means 37 axially opposite the first connecting means 23, via which a counterweight 39 can be connected. The second connection means 37, which, like the first connection means 23, have the same design for all the cross members 11, 13, have sections projecting over the base body 3 in the axial direction. Pot-shaped holding elements 41 can be connected to the second connection means 37, for example by welding. The holding elements 41 which can be produced as sheet metal parts each have a contact surface 43 which extends in a plane perpendicular to the axial direction for holding tabs 45 which are formed on the counterweight 39 and which can be integrated into the counterweight 39. To attach the balance weight 39 to the holding elements 41, the holding tabs 45 can be screwed to the latter via a screw 47. Following the contact surface 43, the holding elements 41 each have a side wall 49 which can be connected at least in regions to the front wall 5, for example by screwing or welding. This results in a stiffened connection for the counterweight 39, which is of closed annular design and thus itself has a high degree of rigidity. The high rigidity of the counterweight 39 and its connection to the cross members 11, 13 also result in a stiffening of the adjacent areas of the front wall 5 and the base body 3.

Dadurch, daß sich ein Abschnitt des Grundkörpers 3 bis zu den ersten Anschlußmitteln 23 erstreckt, sind die Traversen 11, 13 in diesem Bereich verbindbar. Zusammen mit dem geschlossen ringförmig ausgebildeten Ausgleichsgewicht 39 auf der gegenüberliegenden Seite des Grundkörpers 3 sind die ersten und zweiten Anschlußmittel 23 bzw. 37 der Traversen 11, 13 versteifend jeweils miteinander verbunden, so daß Kräfte von dem Ausgleichsgewicht 39 bzw. dem Lagerkreuz 19 gut auf die Traversen 11, 13 übertragbar sind. In die Traversen 11, 13 eingeleitete Kräfte, die bspw. durch eine Unwuchterregung der Trommel 21 hervorgerufen sein können, werden ausgehend von den Verbindungsmitteln 15, 17 über Federn bzw. Dämpfer in das Gehäuse weitergeleitet. Durch die Verbindung der Traversen 11, 13 mit dem Grundkörper 3 trägt dieser teilweise zur Übertragung der Kräfte von der Trommel 21 in das Gehäuse bei. Die Abmessungen der Traversen 11, 13 und die Wanddickedes Grundkörpers 3 können dabei so aufeinander abgestimmt werden, daß ein stabiles, wirksames Tragverhalten bei relativ geringer Wanddicke des Grundkörpers 3 sowie der Vorder- und Rückwand 5, 9 erreichbar ist. Bedingt durch diegeringe Teilevielfalt und den leichten Ein- und Ausbau der Trommel 21 zusammen mit dem Lagerkreuz 19 und der Rückwand 9 ist die Herstellung und Montage des erfindungsgemäßen Laugenbehälters 1 einfach und in zumindest teilweise automatisierter Weise möglich. Als vormontierbare Baueinheit ist dabei der Grundkörper 3 mit den Traversen 11, 13 und der Vorderwand 5 verbindbar.Characterized in that a section of the base body 3 up to extends the first connection means 23, the traverses 11, 13 can be connected in this area. Together with the closed ring-shaped balance weight 39 on the opposite side of the base body 3, the first and second connection means 23 and 37 of the crossbeams 11, 13 are each stiffened together, so that forces from the balance weight 39 and the bearing cross 19 act well on the Trusses 11, 13 are transferable. Forces introduced into the crossbeams 11, 13, which can be caused, for example, by imbalance excitation of the drum 21, are passed on from the connecting means 15, 17 into the housing via springs or dampers. By connecting the crossbeams 11, 13 to the base body 3, this partially contributes to the transmission of the forces from the drum 21 into the housing. The dimensions of the crossbeams 11, 13 and the wall thickness of the base body 3 can be coordinated with one another in such a way that stable, effective load-bearing behavior can be achieved with a relatively small wall thickness of the base body 3 and the front and rear walls 5, 9. Due to the small number of parts and the easy installation and removal of the drum 21 together with the bearing cross 19 and the rear wall 9, the manufacture and assembly of the tub 1 according to the invention is simple and possible in at least partially automated manner. As a preassembled unit, the base body 3 can be connected to the cross members 11, 13 and the front wall 5.

Zur weiteren Vereinfachung der Montage kann das Lagerkreuz 19 in nicht dargestellter Weise Anschlußelemente für einen Trommelantrieb derart enthalten, daß im wesentlichen keine zusätzlichen Befestigungsteile erforderlich sind. Dabei ist auf einer Welle 51 der Trommel 21, der Rückwand 9 gegenüberliegend, eine Riemenscheibe 53 aufsetzbar, die zusammen mit der Wäschetrommel 21 und dem Lagerkreuz 19 ein- bzw. ausbaubar ist.To further simplify the assembly, the bearing cross 19 can be connected in a manner not shown contain a drum drive so that essentially no additional fasteners are required. A pulley 53 can be placed on a shaft 51 of the drum 21, opposite the rear wall 9, which can be installed or removed together with the washing drum 21 and the bearing cross 19.

Claims (9)

  1. A tub for washing machines or the like, which tub comprises a substantially hollow cylindrical main body (3) for receiving a laundry drum (21), which body can at least partly be closed imperviously via a front wall and a rear wall, transverse members (11, 13) arranged axially on the outer circumference of the main body and having connection means (15, 17) for springs and/or dampers, a supporting cross (19) for rotatably supporting the laundry drum, and at least one balancing weight (39),
    characterised in that
    the transverse members (11, 13) are connected at least locally to the main body (3) and comprise first connection means (23) for the supporting cross (19) and second connection means (37) for at least one ring-shaped balancing weight (39).
  2. A tub as claimed in Claim 1,
    characterised in that
    the balancing weight (39) has a closed ring-shaped construction.
  3. A tub as claimed in Claim 1 or 2,
    characterised in that
    the first and/or the second connection means (37) comprise portions which extend axially beyond the main body (3).
  4. A tub as claimed in any one of the Claims 1 to 3,
    characterised in that
    the main body (3) comprises a portion which can be connected to the first or the second connection means (23).
  5. A tub as claimed in any one of the Claims 1 to 4,
    characterised in that
    the first and/or the second connection means (23) have openings for the passage of fixing screws (23).
  6. A tub as claimed in any one of the Claims 1 to 5,
    characterised in that
    the first and/or second connection means (37) comprise retaining elements (41) which can be connected to the front wall (5) and/or the rear wall (9).
  7. A tub as claimed in any one of the Claims 1 to 6,
    characterised in that
    mounting portions (25) of the supporting cross (19) which can be connected to the first connection means (23) are shaped as arcs of a circle and the front wall (5) or the rear wall (9) can be secured between the mounting portions (25) and the first connection means (23).
  8. A tub as claimed in any one of the Claims 1 to 7,
    characterised in that
    the front wall (5) or the rear wall (7) can be connected to the main body (3) by folding.
  9. A tub as claimed in any one of the Claims 1 to 8,
    characterised in that
    four transverse members (11, 13), of which each time two members are identical, can be connected to the main body (3).
EP88202650A 1987-11-27 1988-11-24 Tub for washing machines Expired - Lifetime EP0318109B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873740205 DE3740205A1 (en) 1987-11-27 1987-11-27 LYE RESERVOIR FOR WASHING MACHINES
DE3740205 1987-11-27

Publications (2)

Publication Number Publication Date
EP0318109A1 EP0318109A1 (en) 1989-05-31
EP0318109B1 true EP0318109B1 (en) 1992-07-08

Family

ID=6341389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88202650A Expired - Lifetime EP0318109B1 (en) 1987-11-27 1988-11-24 Tub for washing machines

Country Status (2)

Country Link
EP (1) EP0318109B1 (en)
DE (2) DE3740205A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2154980B1 (en) * 1998-06-10 2001-11-16 Balay Sa FRONT COUNTERWEIGHT HOLDING SYSTEM TO THE WASHER HUB.
KR20010037665A (en) * 1999-10-19 2001-05-15 구자홍 device for damping in drum-type washing machine
DE10040400C1 (en) * 2000-08-18 2002-01-31 Whirlpool Co Front loader washing machine has balance weights of T-shaped cross-section with arm in contact with washing solution container front surface, bridges engaging groove in front surface
DE20100354U1 (en) * 2001-01-10 2001-03-29 Turban Beton Bauteile Kg Compensating mass element
DE10227036C1 (en) * 2002-06-17 2003-11-20 Miele & Cie Washing unit for drum washing machine has hollow cylindrical washing liquid container enclosing washing drum surrounded by support cage
DE102005023444A1 (en) * 2005-05-20 2006-11-23 BSH Bosch und Siemens Hausgeräte GmbH Drum with embossed seam

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1610303A1 (en) * 1963-06-18 1970-01-15 Zanker Kg Hermann Washing machine for fully automatic operation
DE2347086A1 (en) * 1973-09-19 1975-03-27 Licentia Gmbh Detergent container for washing-machines - made at least partially of transparent material
DE2704498A1 (en) * 1977-02-03 1978-08-10 Licentia Gmbh Washing machine lye drum - has each end wall fitted with support ring for mounting brackets carrying suspension springs shock absorbers balance weights and motor
IT1169242B (en) * 1981-04-15 1987-05-27 Candy Ind Spa IMPROVEMENT OF A WASHING MACHINE IN A BATHTUB GROUP

Also Published As

Publication number Publication date
DE3872671D1 (en) 1992-08-13
DE3740205A1 (en) 1989-06-08
EP0318109A1 (en) 1989-05-31

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