EP3084063B1 - Tub arrangement - Google Patents

Tub arrangement Download PDF

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Publication number
EP3084063B1
EP3084063B1 EP14811939.9A EP14811939A EP3084063B1 EP 3084063 B1 EP3084063 B1 EP 3084063B1 EP 14811939 A EP14811939 A EP 14811939A EP 3084063 B1 EP3084063 B1 EP 3084063B1
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EP
European Patent Office
Prior art keywords
tub
counterweight
attachment extension
attachment
extension
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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.)
Not-in-force
Application number
EP14811939.9A
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German (de)
French (fr)
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EP3084063A1 (en
Inventor
Frank Emmerich
Robert SCHOLICH
Anil ICÖZ
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL14811939T priority Critical patent/PL3084063T3/en
Publication of EP3084063A1 publication Critical patent/EP3084063A1/en
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Publication of EP3084063B1 publication Critical patent/EP3084063B1/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
    • 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

Definitions

  • the invention relates to a lye container arrangement for a laundry treatment machine, in particular a washing machine or a washer-dryer, with a plastic tub and with a counterweight attached thereto, wherein the tub has at least one attachment extension, which is anchored in a corresponding anchorage hole in the counterweight by positive locking. Furthermore, the invention relates to a laundry treatment machine with such a tub arrangement.
  • counterweights are particularly required in laundry treatment machines with high-speed rotating laundry drums to compensate for the high centrifugal forces occurring due to the uneven distribution of laundry in the rotary laundry drum. This can otherwise lead to strong imbalances and rashes of the rotating laundry drum and thus to an undesirable impact of the tub and the laundry drum comprehensive vibration system with fixed machine components.
  • the required counterweights are usually in a range of 32 to 60 kg. Therefore, the reliable and long-term stable attachment of the counterweight to the tub is very important.
  • the WO 2009/118220 A1 describes, in this connection, an anchoring system for counterweights of washing machines and washing dryers (ie appliances in which the functions of washing and drying are combined), which is based on a multiplicity of tubular, expandable cones.
  • the pins are arranged on the tub side and have axial slots. In the assembled state, the pins penetrate respectively associated holes in the counterweight and are each radially spread by an axially inserted into the pin special sleeve, a maggot-shaped screw or a conical spiral coil spring.
  • the EP 1 961 855 A1 discloses a washing machine with a plastic tub and at least one counterweight fixed by releasable screw connections. The screws are screwed into pin-shaped extensions of the tub and thus cause a radial spreading of the attachment extensions.
  • EP 0 798 412 A2 describes a generic lye container assembly with locking partners, which are formed on the tub or (initially) held on the counterweight via webs and form a positive anchoring in the assembled state under spreading of the outer, sleeve-shaped lye container-side locking partner.
  • the inner, initially connected via retaining webs with the counterweight locking partner is pressed into a slotted hole of the tub side locking partner and screwed if necessary.
  • an object of the present invention is to provide a suds container arrangement, which is characterized by an even more simplified production and ease of assembly, and a laundry treatment machine with such a suds container arrangement.
  • the fastening extension consists of a thermoformable material and that the positive connection is formed by (plastic) hot deformation of the fastening extension.
  • ballast weight in the tub assembly according to the invention a particularly reliable and cost-effective attachment of the ballast weight (counterweight) is created in an advantageous manner, which is optimized in particular for an automated assembly process.
  • a significant advantage of the invention is also that for the attachment of the counterweight no individually handled, to be supplied and to be mounted items are required.
  • the attachment can rather be created solely by the lye container side provided extensions and by their hot deformation in the assembly process.
  • the fastening extension is integrally injection-molded in the normal direction to a contact surface of the counterweight against which the counterweight bears against the tub.
  • the attachment extension has in its laugen thereto-en foot area a plurality of deformable radial ribs.
  • the radial ribs which are preferably designed as squeezing ribs in the base region, are particularly suitable for absorbing transverse forces. Their compliance leads to a particularly flat system and compensates for smaller manufacturing tolerances.
  • the attachment extension can be made solid or hollow cylindrical; the cross section of the attachment extension is preferably circular or oval.
  • the laundry treatment machine according to the invention in particular a washing machine or a washer-dryer, is distinguished by the above-described liquor container arrangement according to the invention.
  • the foregoing apparatus features also define a preferred manufacturing method, particularly assembly method, for manufacturing the tub assembly of the present invention.
  • FIG. 1 is - in the left half of the figure in the state during assembly and in the right half of the figure after completion of assembly - a liquor container assembly according to the invention shown in fragmentary form.
  • the tub assembly comprises a plastic tub 1, of which only a section of its container wall 2 is shown, and a counterweight (ballast) 3. Integral to the tub wall 2 more (each in the figures, only one attachment extension shown) extensions 4 is formed.
  • the attachment extension 4 extends in the normal direction 5 of the wall 2 and a bearing surface 6, in which the provided with through holes 7 counterweight 3 rests with its one side 8.
  • the attachment extension 4 consists in this embodiment of thermoplastic material and has a central recess or bore 9.
  • the attachment extension 4 is shown by applying heat and pressure - for example by means of a heated punch that presses against the normal direction 5 on the free end 10 of the attachment extension - done plastic hot deformation. Due to the hot deformation a positive connection 12 between the fastening extension 4 and the through hole 7 of the counterweight 3 is created.
  • the through hole (anchoring bore) 7 extends to the free Page 14 of the counterweight; In other words, the anchoring bore tapers from the free side 14, starting from the contact surface 6, wherein in this embodiment, the taper ends after a little more than half the bore length and the bore then slightly widened again to the contact surface 6 of the tub 1.
  • FIG. 2 a variant is shown in which an extending away from the container wall 2 of the tub 1 attachment extension 20 is formed as a solid extension. Again, the attachment extension 20 penetrates a through hole 7 in the counterweight 3.
  • the right part of FIG. 2 again shows the mounting state after hot deformation of the attachment extension 20, through which a positive connection 22 is formed with the anchoring bore 7.
  • the tub and the counterweight are permanently and reliably connected by the positive connection.
  • the preparation of the arrangement according to the invention can be fully automated, with respect to the above-mentioned prior art reduce the manufacturing cost by saving material and reducing the cycle time.
  • FIG. 3 shows the attachment extension 4 from FIG. 1 (Before final assembly / hot deformation and without the counterweight 3) with a view of the end face 16, the central bore 9, a wall 17 having an annular cross-section and radially extending from the wall radial ribs 18 can be seen.
  • These deformable radial ribs (crush ribs) 18 serve to absorb transverse forces and, by their resilience, allow, in particular in their region near the base 19, a particularly flat abutment of the fastening extension 4 on the inner wall 24 of the bore 7 (FIG. FIG. 1 ).

Description

Die Erfindung betrifft eine Laugenbehälteranordnung für eine Wäschebehandlungsmaschine, insbesondere eine Waschmaschine oder einen Waschtrockner, mit einem Kunststoff-Laugenbehälter und mit einem an diesem befestigten Gegengewicht, wobei der Laugenbehälter zumindest einen Befestigungsfortsatz aufweist, der in einer korrespondierenden Verankerungsbohrung in dem Gegengewicht durch Formschluss verankert ist. Ferner betrifft die Erfindung eine Wäschebehandlungsmaschine mit einer solchen Laugenbehälteranordnung.The invention relates to a lye container arrangement for a laundry treatment machine, in particular a washing machine or a washer-dryer, with a plastic tub and with a counterweight attached thereto, wherein the tub has at least one attachment extension, which is anchored in a corresponding anchorage hole in the counterweight by positive locking. Furthermore, the invention relates to a laundry treatment machine with such a tub arrangement.

Auch als Ballast bezeichnete Gegengewichte sind insbesondere bei Wäschebehandlungsmaschinen mit hochtourig drehenden Wäschetrommeln erforderlich, um die aufgrund der ungleichmäßigen Wäscheverteilung in der rotierenden Wäschetrommel auftretenden hohen Zentrifugalkräfte zu kompensieren. Diese können sonst zu starken Unwuchten und Ausschlägen der rotierenden Wäschetrommel und somit zu einem unerwünschtem Anschlagen des den Laugenbehälter und die Wäschetrommel umfassenden Schwingungssystems mit feststehenden Maschinenkomponenten führen. Wie beispielsweise die WO 2009/118220 A1 beschreibt, liegen die dazu erforderlichen Gegengewichte üblicherweise in einem Bereich von 32 bis 60 kg. Deshalb kommt der zuverlässigen und langzeitstabilen Befestigung des Gegengewichts an dem Laugenbehälter hohe Bedeutung zu.Also referred to as counterweights counterweights are particularly required in laundry treatment machines with high-speed rotating laundry drums to compensate for the high centrifugal forces occurring due to the uneven distribution of laundry in the rotary laundry drum. This can otherwise lead to strong imbalances and rashes of the rotating laundry drum and thus to an undesirable impact of the tub and the laundry drum comprehensive vibration system with fixed machine components. Such as the WO 2009/118220 A1 describes, the required counterweights are usually in a range of 32 to 60 kg. Therefore, the reliable and long-term stable attachment of the counterweight to the tub is very important.

Die WO 2009/118220 A1 beschreibt in diesem Zusammenhang ein Verankerungssystem für Gegengewichte von Waschmaschinen und Waschtrocknern (also Geräten, in denen die Funktionen des Waschens und des Trocknens kombiniert sind), das auf einer Vielzahl von röhrenförmigen, aufspreizbaren Zapfen basiert. Die Zapfen sind laugenbehälterseitig angeordnet und weisen axiale Schlitze auf. Im montierten Zustand durchdringen die Zapfen jeweils zugeordnete Bohrungen in dem Gegengewicht und sind jeweils durch eine axial in den Zapfen eingeschobene spezielle Hülse, eine madenförmige Schraube oder eine konusförmig gewundene Spiralfeder radial aufgespreizt.The WO 2009/118220 A1 describes, in this connection, an anchoring system for counterweights of washing machines and washing dryers (ie appliances in which the functions of washing and drying are combined), which is based on a multiplicity of tubular, expandable cones. The pins are arranged on the tub side and have axial slots. In the assembled state, the pins penetrate respectively associated holes in the counterweight and are each radially spread by an axially inserted into the pin special sleeve, a maggot-shaped screw or a conical spiral coil spring.

Die EP 1 961 855 A1 offenbart eine Waschmaschine mit einem Kunststoff-Laugenbehälter und wenigstens einem Gegengewicht, das durch lösbare Schraubenverbindungen fixiert ist. Die Schrauben sind in stiftförmige Fortsätze des Laugenbehälters eingeschraubt und bewirken so eine radiale Aufspreizung der Befestigungsfortsätze.The EP 1 961 855 A1 discloses a washing machine with a plastic tub and at least one counterweight fixed by releasable screw connections. The screws are screwed into pin-shaped extensions of the tub and thus cause a radial spreading of the attachment extensions.

Auch die EP 0 798 412 A2 beschreibt eine gattungsgemäße Laugenbehälteranordnung mit Verriegelungspartnern, die an dem Laugenbehälter ausgebildet bzw. (zunächst) an dem Gegengewicht über Stege gehalten sind und die im Montagezustand unter Aufspreizung des äußeren, hülsenförmigen laugenbehälterseitigen Verriegelungspartners eine formschlüssige Verankerung bilden. Dazu wird der innere, zunächst über Haltestege mit dem Gegengewicht verbundene Verriegelungspartner in eine geschlitzte Bohrung des laugenbehälterseitigen Verriegelungspartners eingedrückt und bedarfsweise verschraubt.Also the EP 0 798 412 A2 describes a generic lye container assembly with locking partners, which are formed on the tub or (initially) held on the counterweight via webs and form a positive anchoring in the assembled state under spreading of the outer, sleeve-shaped lye container-side locking partner. For this purpose, the inner, initially connected via retaining webs with the counterweight locking partner is pressed into a slotted hole of the tub side locking partner and screwed if necessary.

Ferner ist aus EP 965 676 A1 eine weitere Laugenbehälteranordnung mit einem an dem Laugenbehälter befestigten Gegengewicht bekannt, wobei der Laugenbehälter einen Befestigungsfortsatz aufweist, der mit dem Gegengewicht durch Formschluss verankert ist.Furthermore, it is off EP 965 676 A1 another lye container assembly with a counterweight attached to the tub known, wherein the tub has a fastening extension, which is anchored to the counterweight by positive locking.

Die vorbekannten Verrieglungs- bzw. Verankerungssysteme und damit die entsprechenden Laugenbehälteranordnungen erfordern eine Vielzahl von herzustellenden, zu handhabenden und zu verbindenden Einzelteilen.The prior art Verrieglungs- or anchoring systems and thus the corresponding tub container assemblies require a variety of manufactured, to be handled and connected items.

Vor diesem Hintergrund besteht eine Aufgabe der vorliegenden Erfindung in der Bereitstellung einer Laugenbehälteranordnung, die sich durch eine noch weiter vereinfachte Herstellung und besondere Montagefreundlichkeit auszeichnet, und einer Wäschebehandlungsmaschine mit einer solchen Laugenbehälteranordnung.Against this background, an object of the present invention is to provide a suds container arrangement, which is characterized by an even more simplified production and ease of assembly, and a laundry treatment machine with such a suds container arrangement.

Diese Aufgabe wird erfindungsgemäß durch eine Laugenbehälteranordnung mit den Merkmalen des Patentanspruchs 1 bzw. durch eine Wäschebehandlungsmaschine mit den Merkmalen des Anspruchs 5 gelöst.This object is achieved by a tub assembly with the features of claim 1 and by a laundry treatment machine with the features of claim 5.

Demgemäß ist bei einer Laugenbehälteranordnung der eingangs genannten Art vorgesehen, dass der Befestigungsfortsatz aus einem warmverformbaren Material besteht und dass der Formschluss durch (plastische) Warmverformung des Befestigungsfortsatzes gebildet ist.Accordingly, it is provided in a suds container arrangement of the type mentioned that the fastening extension consists of a thermoformable material and that the positive connection is formed by (plastic) hot deformation of the fastening extension.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus der beigefügten Zeichnung sowie aus den Unteransprüchen, deren Merkmale einzeln und beliebiger Kombination miteinander angewendet werden können.Advantageous embodiments of the invention will become apparent from the following description and from the accompanying drawings and from the subclaims, the features of which can be used individually and any combination with each other.

Bei der erfindungsgemäßen Laugenbehälteranordnung ist in vorteilhafter Weise eine besonders prozesssichere und kostengünstige Befestigung des Ballastgewichtes (Gegengewichts) geschaffen, die insbesondere für einen automatisierten Montageprozess optimiert ist. Ein wesentlicher Vorteil der Erfindung besteht zudem darin, dass für die Befestigung des Gegengewichts keine einzeln zu handhabenden, zuzuführenden und zu montierenden Einzelteile erforderlich sind. Die Befestigung kann vielmehr allein durch die laugenbehälterseitig vorgesehenen Fortsätze und durch deren Warmverformung im Montageprozess geschaffen werden.In the tub assembly according to the invention a particularly reliable and cost-effective attachment of the ballast weight (counterweight) is created in an advantageous manner, which is optimized in particular for an automated assembly process. A significant advantage of the invention is also that for the attachment of the counterweight no individually handled, to be supplied and to be mounted items are required. The attachment can rather be created solely by the lye container side provided extensions and by their hot deformation in the assembly process.

Zur Realisierung einer besonders belastbaren Verbindung von Laugenbehälter und Gegengewicht sieht eine vorteilhafte Ausgestaltung der Erfindung vor, dass sich die Verankerungsbohrung zu einer Anlagefläche des Gegengewichts, an der das Gegengewicht an dem Laugenbehälter anliegt, hin verjüngt.To realize a particularly reliable connection of tub and counterweight provides an advantageous embodiment of the invention, that tapers the anchoring bore to a contact surface of the counterweight, against which the counterweight to the tub, towards.

Fertigungstechnisch bevorzugt ist der Befestigungsfortsatz in Normalrichtung zu einer Anlagefläche des Gegengewichts, an der das Gegengewicht an dem Laugenbehälter anliegt, integral angespritzt.In terms of manufacturing technology, the fastening extension is integrally injection-molded in the normal direction to a contact surface of the counterweight against which the counterweight bears against the tub.

Zum Ausgleich von Fertigungstoleranzen und zur Realisierung einer möglichst großen mantelseitigen Anlagefläche zwischen den Verbindungspartnern sieht eine bevorzugte Weiterbildung der Erfindung vor, dass der Befestigungsfortsatz in seinem laugenbehälternahen Fußbereich mehrere verformbare Radialrippen aufweist. Die bevorzugt im Sockelbereich als Quetschrippen ausgeführten Radialrippen sind besonders zur Aufnahme von Querkräften geeignet. Ihre Nachgiebigkeit führt zu einer besonders flächigen Anlage und kompensiert kleinere Fertigungstoleranzen.To compensate for manufacturing tolerances and to realize the largest possible shell-side contact surface between the connection partners provides a preferred embodiment of the invention, that the attachment extension has in its laugenbehälternahen foot area a plurality of deformable radial ribs. The radial ribs, which are preferably designed as squeezing ribs in the base region, are particularly suitable for absorbing transverse forces. Their compliance leads to a particularly flat system and compensates for smaller manufacturing tolerances.

Der Befestigungsfortsatz kann massiv oder auch hohlzylindrisch ausgeführt sein; der Querschnitt des Befestigungsfortsatzes ist bevorzugt kreisrund oder oval.The attachment extension can be made solid or hollow cylindrical; the cross section of the attachment extension is preferably circular or oval.

Die erfindungsgemäße Wäschebehandlungsmaschine, insbesondere eine Waschmaschine oder ein Waschtrockner, zeichnet sich durch die vorstehend beschriebene erfindungsgemäße Laugenbehälteranordnung aus.The laundry treatment machine according to the invention, in particular a washing machine or a washer-dryer, is distinguished by the above-described liquor container arrangement according to the invention.

Die vorstehenden Vorrichtungsmerkmale definieren auch ein bevorzugtes Fertigungsverfahren, insbesondere Montageverfahren, zur Herstellung der erfindungsgemäßen Laugenbehälteranordnung.The foregoing apparatus features also define a preferred manufacturing method, particularly assembly method, for manufacturing the tub assembly of the present invention.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand einer Zeichnung weiter erläutert. Es zeigen:

Fig. 1
im Längsschnitt einen Ausschnitt einer ersten Laugenbehälteranordnung im Bereich eines Befestigungsfortsatzes,
Fig. 2
im Längsschnitt eine weitere Ausgestaltung einer Laugenbehälteranordnung und
Fig. 3
in stirnseitiger Ansicht einen Befestigungsfortsatz vor der Montage.
Embodiments of the invention are explained below with reference to a drawing. Show it:
Fig. 1
in a longitudinal section a detail of a first tub arrangement in the region of a fastening extension,
Fig. 2
in longitudinal section a further embodiment of a suds container arrangement and
Fig. 3
in the frontal view a fastening extension before assembly.

In Figur 1 ist - in der linken Figurenhälfte im Zustand während der Montage und in der rechten Figurenhälfte nach vollzogener Montage - eine erfindungsgemäße Laugenbehälteranordnung ausschnittweise dargestellt. Die Laugenbehälteranordnung umfasst einen Kunststoff-Laugenbehälter 1, von dem nur ein Ausschnitt seiner Behälterwand 2 dargestellt ist, und ein Gegengewicht (Ballast) 3. Integral an die Laugenbehälterwand 2 sind mehrere (in den Figuren ist jeweils nur ein Befestigungsfortsatz gezeigt) Fortsätze 4 angeformt. Der Befestigungsfortsatz 4 erstreckt sich in Normalrichtung 5 von der Wand 2 bzw. einer Anlagefläche 6, an der das mit Durchgangsbohrungen 7 versehene Gegengewicht 3 mit seiner einen Seite 8 anliegt. Der Befestigungsfortsatz 4 besteht in diesem Ausführungsbeispiel aus thermoplastischem Kunststoff und weist eine zentrale Ausnehmung oder Bohrung 9 auf.In FIG. 1 is - in the left half of the figure in the state during assembly and in the right half of the figure after completion of assembly - a liquor container assembly according to the invention shown in fragmentary form. The tub assembly comprises a plastic tub 1, of which only a section of its container wall 2 is shown, and a counterweight (ballast) 3. Integral to the tub wall 2 more (each in the figures, only one attachment extension shown) extensions 4 is formed. The attachment extension 4 extends in the normal direction 5 of the wall 2 and a bearing surface 6, in which the provided with through holes 7 counterweight 3 rests with its one side 8. The attachment extension 4 consists in this embodiment of thermoplastic material and has a central recess or bore 9.

Im rechten Teil der Figur 1 ist der Befestigungsfortsatz 4 nach durch Aufbringen von Wärme und Druck - z.B. mittels eines beheizten Stempels, der entgegen der Normalrichtung 5 auf das freie Ende 10 des Befestigungsfortsatzes drückt - erfolgter plastischer Warmverformung gezeigt. Durch die Warmverformung ist ein Formschluss 12 zwischen dem Befestigungsfortsatz 4 und der Durchgangsbohrung 7 des Gegengewichtes 3 entstanden. Um einen besonders belastbaren Formschluss zu realisieren, erweitert sich die Durchgangsbohrung (Verankerungsbohrung) 7 zur freien Seite 14 des Gegengewichtes hin; mit anderen Worten: die Verankerungsbohrung verjüngt sich von der freien Seite 14 ausgehend zur Anlagefläche 6 hin, wobei in diesem Ausführungsbeispiel die Verjüngung nach etwas mehr als der halben Bohrungslänge endet und sich die Bohrung dann zur Anlagefläche 6 des Laugenbehälters 1 hin wieder etwas erweitert.In the right part of the FIG. 1 the attachment extension 4 is shown by applying heat and pressure - for example by means of a heated punch that presses against the normal direction 5 on the free end 10 of the attachment extension - done plastic hot deformation. Due to the hot deformation a positive connection 12 between the fastening extension 4 and the through hole 7 of the counterweight 3 is created. In order to realize a particularly strong positive connection, the through hole (anchoring bore) 7 extends to the free Page 14 of the counterweight; In other words, the anchoring bore tapers from the free side 14, starting from the contact surface 6, wherein in this embodiment, the taper ends after a little more than half the bore length and the bore then slightly widened again to the contact surface 6 of the tub 1.

In Figur 2 ist eine Variante gezeigt, bei der ein sich von der Behälterwand 2 des Laugenbehälters 1 weg erstreckender Befestigungsfortsatz 20 als Massivfortsatz ausgebildet ist. Auch hier durchdringt der Befestigungsfortsatz 20 eine Durchgangsbohrung 7 in dem Gegengewicht 3. Der rechte Teil der Figur 2 zeigt wiederum den Montagezustand nach Warmverformung des Befestigungsfortsatzes 20, durch die ein Formschluss 22 mit der Verankerungsbohrung 7 gebildet ist.In FIG. 2 a variant is shown in which an extending away from the container wall 2 of the tub 1 attachment extension 20 is formed as a solid extension. Again, the attachment extension 20 penetrates a through hole 7 in the counterweight 3. The right part of FIG. 2 again shows the mounting state after hot deformation of the attachment extension 20, through which a positive connection 22 is formed with the anchoring bore 7.

Der Laugenbehälter und das Gegengewicht sind durch den Formschluss dauerhaft und zuverlässig verbunden. Die Herstellung der erfindungsgemäßen Anordnung kann voll automatisiert erfolgen, wobei sich gegenüber dem eingangs genannten Stand der Technik die Herstellungskosten durch Einsparung von Material und Reduzierung der Taktzeit vermindern.The tub and the counterweight are permanently and reliably connected by the positive connection. The preparation of the arrangement according to the invention can be fully automated, with respect to the above-mentioned prior art reduce the manufacturing cost by saving material and reducing the cycle time.

Figur 3 zeigt den Befestigungsfortsatz 4 aus Figur 1 (vor endgültiger Montage/Warmverformung und ohne das Gegengewicht 3) mit Blick auf die Stirnseite 16, wobei die zentrale Bohrung 9, eine Wandung 17 mit ringförmigem Querschnitt und sich radial von der Wandung erstreckende Radialrippen 18 erkennbar sind. Diese verformbaren Radialrippen (Quetschrippen) 18 dienen zur Aufnahme von Querkräften und ermöglichen durch ihre Nachgiebigkeit insbesondere in ihrem sockelnahen Bereich 19 eine besonders flächige Anlage des Befestigungsfortsatzes 4 an der inneren Wandung 24 der Bohrung 7 (Figur 1). FIG. 3 shows the attachment extension 4 from FIG. 1 (Before final assembly / hot deformation and without the counterweight 3) with a view of the end face 16, the central bore 9, a wall 17 having an annular cross-section and radially extending from the wall radial ribs 18 can be seen. These deformable radial ribs (crush ribs) 18 serve to absorb transverse forces and, by their resilience, allow, in particular in their region near the base 19, a particularly flat abutment of the fastening extension 4 on the inner wall 24 of the bore 7 (FIG. FIG. 1 ).

Bezugszeichenreference numeral

11
Kunststoff-LaugenbehälterPlastic tub
22
Behälterwandcontainer wall
33
Gegengewichtcounterweight
44
BefestigungsfortsatzAttachment projection
55
Normalrichtungnormal direction
66
Anlageflächecontact surface
77
DurchgangsbohrungThrough Hole
88th
Seite des GegengewichtsSide of the counterweight
99
Bohrungdrilling
1010
freies Endefree end
1212
Formschlussform-fit
1414
freie Seite des Gegengewichtes 3free side of the counterweight 3
1616
Stirnseitefront
1717
Wandungwall
1818
Radialrippenradial ribs
1919
Sockelnaher BereichPedestal area
2020
BefestigungsfortsatzAttachment projection
2222
Formschlussform-fit
2424
Wandungwall

Claims (5)

  1. Tub arrangement for a laundry treatment machine
    - having a plastic tub (1) and
    - having a counterweight (3) attached thereto,
    - wherein the tub (1) has at least one attachment extension (4) which is anchored in a corresponding anchoring hole (7) in the counterweight (3) by positive locking (12), characterised in that
    - the attachment extension (4) consists of a hot-formable material and that the positive locking (12) is formed by plastic hot forming of the attachment extension (4).
  2. Arrangement according to claim 1,
    characterised in that
    - the anchoring hole (7) tapers down to a contact surface (6), on which the counterweight (6) on the tub (1) lies.
  3. Arrangement according to claim 1 or 2,
    characterised in that
    - the attachment extension (4) is integrally moulded in the normal direction (5) to a contact surface (6) on which the counterweight (6) on the tub (1) lies.
  4. Arrangement according to at least one of the preceding claims,
    characterised in that
    - the attachment extension (4) has a plurality of deformable radial ribs (18) in its foot region near the tub.
  5. Laundry treatment machine having a tub arrangement according to one of the preceding claims.
EP14811939.9A 2013-12-18 2014-12-15 Tub arrangement Not-in-force EP3084063B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14811939T PL3084063T3 (en) 2013-12-18 2014-12-15 Tub arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013226392.9A DE102013226392A1 (en) 2013-12-18 2013-12-18 Tub arrangement
PCT/EP2014/077819 WO2015091389A1 (en) 2013-12-18 2014-12-15 Tub arrangement

Publications (2)

Publication Number Publication Date
EP3084063A1 EP3084063A1 (en) 2016-10-26
EP3084063B1 true EP3084063B1 (en) 2018-08-08

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Application Number Title Priority Date Filing Date
EP14811939.9A Not-in-force EP3084063B1 (en) 2013-12-18 2014-12-15 Tub arrangement

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EP (1) EP3084063B1 (en)
DE (1) DE102013226392A1 (en)
ES (1) ES2691343T3 (en)
PL (1) PL3084063T3 (en)
WO (1) WO2015091389A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020202016A1 (en) * 2020-02-18 2021-08-19 BSH Hausgeräte GmbH Household appliance with a tub and balance weights attached to it, as well as a method of manufacturing a tub of such a household appliance

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4238686C1 (en) * 1992-11-17 1994-03-31 Schwarzenberger Hausgeraete En Attaching concrete balance weights to plastic washing machine drum - has spring disc with sufficient elastic deflection to take up any thermal creep of the plastic attachment point during its life
ES2149641B1 (en) 1996-03-21 2001-05-16 Balay Sa WASHING COUNTERWEIGHT ANCHORING DEVICE.
ES2154980B1 (en) * 1998-06-10 2001-11-16 Balay Sa FRONT COUNTERWEIGHT HOLDING SYSTEM TO THE WASHER HUB.
DE102006011734B4 (en) * 2006-03-14 2020-06-18 BSH Hausgeräte GmbH Household appliance with a tub
DE112006003883B4 (en) * 2006-05-02 2013-02-07 Lg Electronics Inc. Tub for a washing machine and washing machine with the tub
ES2388749T3 (en) 2007-02-22 2012-10-18 Whirlpool Corporation Washing machine with a counterweight fixing system
ITMC20080050A1 (en) 2008-03-27 2009-09-28 Meccanica Generale Srl ANCHORAGE SYSTEM FOR COUNTERWEIGHTS OF WASHING MACHINES AND WASHING MACHINES.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
ES2691343T3 (en) 2018-11-26
DE102013226392A1 (en) 2015-06-18
WO2015091389A1 (en) 2015-06-25
PL3084063T3 (en) 2019-02-28
EP3084063A1 (en) 2016-10-26

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