EP1767686A1 - Plastic tub for a washing machine and method for manufacturing such a tub - Google Patents

Plastic tub for a washing machine and method for manufacturing such a tub Download PDF

Info

Publication number
EP1767686A1
EP1767686A1 EP06019740A EP06019740A EP1767686A1 EP 1767686 A1 EP1767686 A1 EP 1767686A1 EP 06019740 A EP06019740 A EP 06019740A EP 06019740 A EP06019740 A EP 06019740A EP 1767686 A1 EP1767686 A1 EP 1767686A1
Authority
EP
European Patent Office
Prior art keywords
plastic
hub
mold
bearing cross
metallic bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06019740A
Other languages
German (de)
French (fr)
Other versions
EP1767686B1 (en
Inventor
Udo Dahlmann
Wolfgang Hellhake
Ernst Dr. Krämer
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP1767686A1 publication Critical patent/EP1767686A1/en
Application granted granted Critical
Publication of EP1767686B1 publication Critical patent/EP1767686B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/269—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for the bearing of the rotary receptacle
    • 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
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • D06F37/262—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding
    • 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

Definitions

  • the invention relates to a plastic tub for a washing machine, comprising a surrounding a drum, cylindrical shaped container, wherein in one of the end walls, a hub or a metallic bearing cross is integrated with a hub for receiving a drive shaft for the drum in the plastic mass.
  • the invention further relates to a method for producing such a plastic liquor container.
  • Plastic tubs for washing machines are known from the prior art, which surround the drum as a cylindrically shaped container.
  • a metallic bearing cross with a hub for receiving a drive shaft for the drum in the plastic mass is involved in one of the end walls.
  • the encapsulation of the metallic bearing cross causes considerable residual stresses in the tub, which result from the fact that the plastic cools from the solidification temperature to room temperature and thereby shrinks. Forces that act on the bearing cross are so large that in this case the component can deform. The result is that the homogeneity of the tub is affected, which can occur as a result of the voltage spikes hairline cracks, which in particular lead to the life of such a molded tub is severely affected.
  • the metallic bearing cross is placed as a one-piece workpiece in the injection mold, the cross centering lugs for angular fixation and bearing lugs to prevent tilting in the injection mold contains. Then the bearing cross in the form with a particular glass fiber reinforced plastic is molded around so that the metallic bearing cross is at least almost completely embedded in the material of the end face. If such a molded part is now cooled, shrinking stresses arise due to the different materials, which can lead to these hair cracks in the material described above.
  • DE 1 918 222 U also known to use for the manufacture of washing and dishwasher containers a plastic which acts with increased resistance to stress corrosion with a glass fiber reinforcement.
  • the invention thus raises the problem of continuing to form a plastic container for a washing machine with an integrated bearing cross, which is substantially improved, in particular with respect to its life.
  • the invention also has the problem of providing a suitable method for producing such a plastic tote container.
  • the reinforcing means consist of flat fabric mats which can be inserted into the mold and which are arranged in the region of the metallic bearing cross or the hub and at least partially cover the positional cross or the hub.
  • the fabric mats are made of fiberglass (GRP) fibers or GRP yarns. If increased strengths or a particular elongation behavior is required, in alternative embodiments, the fabric mats may be made of polyester fibers or filaments, keflar fibers or keflar filaments or carbon fibers or carbon filaments. A combination of the fibers or threads is also conceivable.
  • GRP fiberglass
  • the fabric mats may be made of polyester fibers or filaments, keflar fibers or keflar filaments or carbon fibers or carbon filaments. A combination of the fibers or threads is also conceivable.
  • the at least one fabric mat is dimensioned so that it essentially covers or covers the entire area of the metallic bearing cross.
  • the hub is at least partially covered, as at least the area remains free for the bearings used.
  • the at least one fabric mat projects beyond the region of the end wall into the edge region of the cylindrical container wall. This results in the connection of the bearing cross over a larger area, whereby force peaks are avoided in the transition region between fabric mat and plastic mass.
  • the connection of the one end wall is reinforced with the cylindrical container wall, whereby the entire plastic tub is stabilized.
  • the invention also relates to the method for producing a plastic tub for a washing machine comprising a cylinder-shaped container surrounding the drum, wherein in one of the end wall, a metallic bearing cross with a hub for receiving the drive shaft for the drum in the plastic mass is involved, wherein first in a first step in the injection mold a trained as a mat reinforcement is inserted and in a second step, the metallic bearing cross is fixed in the injection mold, then in a third step, after closure of the mold, the plastic material is introduced into the mold.
  • the reinforcing mat fulfills its task.
  • the reinforcing means formed as a mat is applied in regions in the form or on the metallic cross.
  • the plastic mass is introduced into the mold in a 2-K process.
  • fiber-reinforced plastic material containing, for example, fiberglass fibers introduced into the mold.
  • the unreinforced plastic compound reliably encloses the inserted mats and binds them firmly in the plastic compound.
  • the reinforced plastic compound introduced in the second step increases the stability and strength of the entire plastic tub. Both for the areas with fabric mats and for the areas without fabric mats the fiber-reinforced plastic mass additionally increases the stability and strength.
  • FIG. 1 shows a perspective view of a plastic tub 1 for a washing machine comprising a drum surrounding the cylindrical container 2, wherein in one of the end walls 3, a metallic bearing cross 4 with a hub 5 for receiving a drive shaft for a drum, not shown here in the Plastic compound is involved.
  • FIG. 5 shows, by way of example, a washing machine 11 which comprises a plastic liquid container 1 with a drum 12 arranged rotatably therein.
  • the drum 12 has at least one end of a drive shaft 13 which is mounted in the hub 5 of the attached to the tub 1 bearing cross 4.
  • tissue mats 6 are provided as reinforcing means in some areas on the bearing cross 4, which are integrated with the plastic compound.
  • the substantially planar running fabric mats 6 at least partially cover the bearing cross 4 or some of the bearing cross arms 8.
  • the hub 5 is at least partially from the fabric mats 6 covered.
  • the fabric mats 6 are designed so that they follow the spatial contour of the bearing cross 4 in the overlap region and thus have a deviating from the plane of the container wall 3 shape.
  • the fabric mats 6 correspond substantially to the shape of the bearing cross 4, or the bearing cross arms 8 and the hub 5.
  • the fabric mat 6 is aligned according to the occurring tension lines 10 in order to optimally reinforce the area and to reduce possible partial material expansions of the container wall 3 ,
  • FIG. 3 shows, in particular, an embodiment in which the entire region of the metallic bearing cross 4 is bordered or covered by at least one fabric mat 6 as a reinforcement.
  • all bearing cross arms 8 are completely or almost completely enclosed by the fabric mat 6.
  • the fabric mat 6 has a shape corresponding to the bearing cross 4, wherein only one region remains free on the end face of the hub 5.
  • the mat 6 can be pressed as a flat part on the contour of the bearing cross 4, whereby it contains a corresponding shape deviating from the plane.
  • the at least one fabric mat 6 can be prefabricated as a molded part with the corresponding spatial formation, so that it corresponds to the contour of the bearing cross 4.
  • the fabric mat 6 is aligned according to the occurring tension lines 10,
  • the individual fibers 9 or threads 9, the fabric mat 6, are aligned in accordance with the occurring tension lines 10.
  • the course of the threads 9 in this case corresponds substantially to the course of the tension lines 10, since the fabric mat 6 has the greatest tensile strength in the direction of the threads 9.
  • a plastic container 1 with a cylindrical container 2 instead of a bearing cross 4 includes a hub 5a in an end wall 3.
  • This hub 5a is at least partially covered with tissue mats 6, wherein the tissue mats 6 extend into the planar region of the end wall 3. It is also possible to extend the fabric mats 6 in the end wall 3 and in the edge region of the cylindrical container 2, whereby the stability of the tub 1 is further increased.
  • FIG 7a an injection mold 14 is sketched in the open state.
  • a fabric mat 6 is inserted as a reinforcing means 6, and fixed in a second step, the metallic bearing cross 4 with the hub 5 in the injection mold 14 becomes.
  • the inner part 15 is located outside the mold 14. After inserting the fabric mats 6 and the fixation of the bearing cross 4 in the mold 14, the inner part 15 is retracted into the mold 14, whereby the mold 14 is closed.
  • FIG. 7b shows the injection mold 14 in the closed state.
  • the plastic compound 17 is introduced into the mold 14 as a third step.
  • the mold 14 has at least one feed line 16, via which the liquid or viscous plastic mass 17 is injected into the mold 14.
  • a fabric mat 6 is placed around the metallic bearing cross 4 as a reinforcing means, as shown in Figure 2 or 3, and then in a second step with the metallic bearing cross 4 the fabric mat 6 is fixed in the injection mold 14, wherein in a third step, after closure of the mold 14, the plastic mass 17 is introduced into the mold 14.
  • Figure 7c is closed with the inner part 15 closed mold 14 and inserted therein mats 6 and bearing cross 4.
  • plastic compound 17 is first injected without fibers into the mold, whereby the mat 6 is integrated in the plastic compound 17.
  • a fiber-reinforced plastic compound 17a is introduced into the mold 14 by the feed line 16a, whereby a good integration of all introduced within the mold 14 components 4, 6 takes place in the fiber-reinforced plastic mass 17a. It is also possible to introduce the fiber-reinforced plastic compound 17a via the feed line 16 for the unreinforced plastic compound 17 into the mold.
  • FIGS. 7a, 7b, 7c the positioning of the supply lines 16, 16a is outlined only as an example, alternative positions or the embodiment with a plurality of supply lines 16, 16a are also possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

The housing (1), which forms the container (2) for the wash water, supports the drum in bearings mounted in the end wall (3). This region is reinforced by a fiber mat (6) so that the bearing hub (5a) or the support spider are at least partially covered. The reinforcing mat need not be flat but can be contoured to follow the outline of the spider or hub. Independent claims included for the following: (1) A manufacturing process in which the reinforcing mat is placed into the injection molding mold after which the metallic spider or hub is added before the mold is closed; (2) A corresponding process in which the reinforcing mat is placed round the spider or hub and they or both placed in the mold together.

Description

Die Erfindung betrifft einen Kunststofflaugenbehälter für eine Waschmaschine, umfassend ein eine Trommel umgebendes, zylinderförmig geformtes Behältnis, wobei in einer der Stirnwände eine Nabe oder ein metallisches Lagerkreuz mit einer Nabe zur Aufnahme einer Antriebswelle für die Trommel in der Kunststoffmasse eingebunden ist. Die Erfindung betrifft ferner ein Verfahren zur Herstellung eines solchen Kunststofflaugenbehälters.The invention relates to a plastic tub for a washing machine, comprising a surrounding a drum, cylindrical shaped container, wherein in one of the end walls, a hub or a metallic bearing cross is integrated with a hub for receiving a drive shaft for the drum in the plastic mass. The invention further relates to a method for producing such a plastic liquor container.

Aus dem Stand der Technik sind Kunststofflaugenbehälter für Waschmaschinen bekannt, die als zylinderförmig geformtes Behältnis die Trommel umgeben. Dabei ist in einer der Stirnwände ein metallisches Lagerkreuz mit einer Nabe zur Aufnahme einer Antriebswelle für die Trommel in der Kunststoffmasse eingebunden. Durch das Umspritzen des metallischen Lagerkreuzes kommt es im Laugenbehälter zu erheblichen Eigenspannungen, die daraus resultieren, dass der Kunststoff von der Erstarrungstemperatur auf Raumtemperatur abkühlt und dabei schrumpft. Kräfte, die dadurch auf das Lagerkreuz einwirken sind derart groß, dass sich hierbei das Bauteil verformen kann. Die Folge ist, dass die Homogenität des Laugenbehälters in Mitleidenschaft gezogen wird, wobei infolge der Spannungsspitzen Haarrisse auftreten können, die insbesondere dazu führen, dass die Lebensdauer eines derartig geformten Laugenbehälters stark in Mitleidenschaft gezogen wird.Plastic tubs for washing machines are known from the prior art, which surround the drum as a cylindrically shaped container. In this case, a metallic bearing cross with a hub for receiving a drive shaft for the drum in the plastic mass is involved in one of the end walls. The encapsulation of the metallic bearing cross causes considerable residual stresses in the tub, which result from the fact that the plastic cools from the solidification temperature to room temperature and thereby shrinks. Forces that act on the bearing cross are so large that in this case the component can deform. The result is that the homogeneity of the tub is affected, which can occur as a result of the voltage spikes hairline cracks, which in particular lead to the life of such a molded tub is severely affected.

Aus dem Stand der Technik ist hierzu aus der EP 1 528 136 A2 ein derartig hergestellter Laugenbehälter bekannt. Hierzu wird das metallische Lagerkreuz als einstückiges Werkteil in die Spritzgussform gelegt, wobei das Kreuz Zentrieransätze zur winkelgenauen Fixierung und Lageransätze zum Verhindern des Kippens in der Spritzgussform enthält. Dann wird das Lagerkreuz in der Form mit einem insbesondere glasfaserverstärkten Kunststoff derart umspritzt, dass das metallische Lagerkreuz wenigstens annähernd vollständig in das Material der Stirnfläche eingebettet ist. Kühlt nun ein derart gespritztes Formteil aus, entstehen aufgrund der unterschiedlichen Materialien Schrumpfspannungen, die zu diesen oben beschriebenen Haarrissen im Material führen können. Weiter ist auch aus dem Stand der Technik gemäß DE 1 918 222 U ebenfalls bekannt, zur Herstellung von Wasch- und Spülmaschinenbehältern einen Kunststoff zu verwenden, der mit erhöhtem Widerstand gegen Spannungskorrosionen mit einer Glasfaserverstärkung wirkt.From the prior art is this from the EP 1 528 136 A2 such a manufactured tub known. For this purpose, the metallic bearing cross is placed as a one-piece workpiece in the injection mold, the cross centering lugs for angular fixation and bearing lugs to prevent tilting in the injection mold contains. Then the bearing cross in the form with a particular glass fiber reinforced plastic is molded around so that the metallic bearing cross is at least almost completely embedded in the material of the end face. If such a molded part is now cooled, shrinking stresses arise due to the different materials, which can lead to these hair cracks in the material described above. Next is also according to the prior art DE 1 918 222 U also known to use for the manufacture of washing and dishwasher containers a plastic which acts with increased resistance to stress corrosion with a glass fiber reinforcement.

Das Problem, welches sich dennoch trotz Verwendung eines glasfaserverstärkten Kunststoffes ergibt, ist, dass insbesondere im Einbindungsbereich des metallischen Lagerkreuzes, und hier im Grenzbereich von Kunststoff und Metall, diese Haarrissbildungen auftreten, die eine eingeschränkte Lebensdauer für den Laugenbehälter darstellen.The problem which nevertheless arises despite the use of a glass-fiber-reinforced plastic is that, especially in the binding region of the metallic bearing cross, and here in the border region of plastic and metal, these hairline cracks occur, which represent a limited service life for the tub.

Der Erfindung stellt sich somit das Problem, einen Kunststofflaugenbehälter für eine Waschmaschine mit einem eingebundenen Lagerkreuz derart weiter zu bilden, der insbesondere hinsichtlich seiner Lebensdauer wesentlich verbessert wird. Der Erfindung stellt sich ferner das Problem, ein geeignetes Verfahren zur Herstellung eines solchen Kunststofflaugenbehälters bereitzustellen.The invention thus raises the problem of continuing to form a plastic container for a washing machine with an integrated bearing cross, which is substantially improved, in particular with respect to its life. The invention also has the problem of providing a suitable method for producing such a plastic tote container.

Erfindungsgemäß wird dieses Problem mit den Merkmalen des Anspruchs 1 sowie den Merkmalen der Ansprüche 10 und 11 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen 2 bis 9 und 12.According to the invention this problem is solved with the features of claim 1 and the features of claims 10 and 11. Advantageous embodiments and developments of the invention will become apparent from the dependent claims 2 to 9 and 12th

Bei dem erfindungsgemäßen Laugenbehälter werden in der Kunststoffmasse zusätzlich zumindest bereichsweise Gewebematten als Bewehrungsmittel mit eingebunden, die insbesondere dort in der Kunststoffmasse eingebunden werden, wo die Spannungsspitzen beim Schrumpfungsprozess oder beim Betrieb der Waschmaschine vornehmlich auftreten könnten. Dabei bestehen die Bewehrungsmittel aus flächigen in die Form einlegbaren Gewebematten, die im Bereich des metallischen Lagerkreuzes oder der Nabe angeordnet sind und zumindest teilweise das Lagekreuz oder die Nabe überdecken. Hierdurch wird eine kraftschlüssige Anbindung des Lagerkreuzes bzw. der Nabe mit der Behälterrückwand bereitgestellt.In the tub according to the invention in addition at least partially tissue mats are included as reinforcing means in the plastic mass, which are particularly involved there in the plastic mass, where the voltage peaks during shrinkage process or during operation of the washing machine could occur primarily. In this case, the reinforcing means consist of flat fabric mats which can be inserted into the mold and which are arranged in the region of the metallic bearing cross or the hub and at least partially cover the positional cross or the hub. As a result, a frictional connection of the bearing cross or the hub is provided with the container rear wall.

Es ist zweckmäßig, die Gewebematten im Bereich des überdeckten Lagerkreuzes oder der Nabe mit einer von der Ebene der Behälterwand abweichenden Kontur auszuführen, damit die Gewebematte in diesen Bereichen mit der Kontur bzw. Form des Lagerkreuzes oder der Nabe korrespondiert. Hierbei schmiegt sich der Gewebematte an das Lagerkreuz oder der Nabe an, wodurch die Anbindung an die zu überdeckenden Bereiche des Lagerkreuzes oder der Nabe verbessert wird.It is expedient to carry out the fabric mats in the region of the overlapping bearing cross or the hub with a deviating from the level of the container wall contour so that the fabric mat corresponds in these areas with the contour or shape of the bearing cross or the hub. Here, the fabric mat nestles against the bearing cross or the hub, whereby the connection to the areas to be covered of the bearing cross or the hub is improved.

In einer zweckmäßigen Ausführung sind die Gewebematten aus GFK (Glasfaser-Kunststoff)-Fasern oder GFK-Fäden hergestellt. Sofern erhöhte Festigkeiten oder ein besonderes Dehnverhalten erforderlich ist, können in alternativen Ausführungsformen die Gewebematten aus Polyester-Fasern- oder Fäden, Keflar-Fasern oder Keflar-Fäden oder Carbon-Fasern oder Carbon-Fäden hergestellt werden. Eine Kombination der Fasern oder Fäden ist ebenfalls denkbar.In an expedient embodiment, the fabric mats are made of fiberglass (GRP) fibers or GRP yarns. If increased strengths or a particular elongation behavior is required, in alternative embodiments, the fabric mats may be made of polyester fibers or filaments, keflar fibers or keflar filaments or carbon fibers or carbon filaments. A combination of the fibers or threads is also conceivable.

Es ist vorteilhaft, die Fasern der einzelnen Matten derart auszurichten, dass die Einzelfasern oder Einzelfäden dem Verlauf der auftretenden Spannungskraftlinien entsprechen. Somit können die auftretenden Kräfte aufgenommen werden, wobei Dehn, - oder Schrumpfungsbewegungen vermindert werden.It is advantageous to align the fibers of the individual mats such that the individual fibers or individual threads correspond to the course of the tension lines that occur. Thus, the forces can be absorbed, with Dehn, - or shrinkage movements are reduced.

In einer alternativen Ausführungsform ist die zumindest eine Gewebematte so dimensioniert, dass sie im wesentlichen den gesamten Bereich des metallischen Lagerkreuzes einfasst bzw. überdeckt. Die Nabe wird hierbei zumindest teilweise überdeckt, da zumindest der Bereich für die eingesetzten Lager frei bleibt.In an alternative embodiment, the at least one fabric mat is dimensioned so that it essentially covers or covers the entire area of the metallic bearing cross. The hub is at least partially covered, as at least the area remains free for the bearings used.

In einer zweckmäßigen Ausführung ragt die zumindest eine Gewebematte über den Bereich der Stirnwand hinaus in den Randbereich der zylindrischen Behälterwand. Hierdurch erfolgt die Anbindung des Lagerkreuzes über eine größere Fläche, wodurch Kraftspitzen im Übergangsbereich zwischen Gewebematte und Kunststoffmasse vermieden werden. Zusätzlich wird die Verbindung der einen Stirnwand mit der zylindrischen Behälterwand verstärkt, wodurch der gesamte Kunststofflaugenbehälter stabilisiert wird.In an expedient embodiment, the at least one fabric mat projects beyond the region of the end wall into the edge region of the cylindrical container wall. This results in the connection of the bearing cross over a larger area, whereby force peaks are avoided in the transition region between fabric mat and plastic mass. In addition, the connection of the one end wall is reinforced with the cylindrical container wall, whereby the entire plastic tub is stabilized.

Die Erfindung betrifft auch das Verfahren zur Herstellung eines Kunststofflaugenbehälters für eine Waschmaschine umfassend ein die Trommel umgebendes, zylinderförmig geformtes Behältnis, wobei in einer der Stirnwand ein metallisches Lagerkreuz mit einer Nabe zur Aufnahme der Antriebswelle für die Trommel in der Kunststoffmasse mit eingebunden wird, wobei zunächst in einem ersten Schritt in die Spritzgussform ein als Matte ausgebildetes Bewehrungsmittel eingelegt wird und in einem zweiten Schritt das metallische Lagerkreuz in der Spritzgussform fixiert wird, wobei dann in einem dritten Schritt, nach Schließung der Form, die Kunststoffmasse in die Form eingebracht wird.The invention also relates to the method for producing a plastic tub for a washing machine comprising a cylinder-shaped container surrounding the drum, wherein in one of the end wall, a metallic bearing cross with a hub for receiving the drive shaft for the drum in the plastic mass is involved, wherein first in a first step in the injection mold a trained as a mat reinforcement is inserted and in a second step, the metallic bearing cross is fixed in the injection mold, then in a third step, after closure of the mold, the plastic material is introduced into the mold.

Gemäß einer Alternative zur Herstellung des Kunststofflaugenbehälters wird ebenfalls vorgeschlagen, dass zunächst in einem ersten Schritt ein als Matte ausgebildetes Bewehrungsmittel um das metallische Lagerkreuz gelegt wird und in einem zweiten Schritt das metallische Lagerkreuz mit der Bewehrung in der Spritzgussform fixiert wird, wobei dann in einem dritten Schritt, nach Schließung der Form, die Kunststoffmasse in die Form eingebracht wird. Somit liegt die Bewehrung ziemlich dicht an dem metallischen Lagerkreuz, so dass hier im Grenzbereich, wo die Hauptspannungen auftreten, die Bewehrungsmatte ihre Aufgabe erfüllt. In Weiterbildung des Verfahrens wird vorgeschlagen, dass das als Matte ausgebildete Bewehrungsmittel bereichsweise in die Form oder an das metallische Kreuz angebracht wird.According to an alternative to the production of the plastic liquor container is also proposed that initially formed in a first step as a mat reinforcement is placed around the metallic bearing cross and in a second step, the metallic bearing cross with the reinforcement in the injection mold is fixed, in which then in a third Step, after closing the mold, the plastic mass is introduced into the mold. Thus, the reinforcement is fairly close to the metallic bearing cross, so that here in the boundary region where the main stresses occur, the reinforcing mat fulfills its task. In a further development of the method, it is proposed that the reinforcing means formed as a mat is applied in regions in the form or on the metallic cross.

In einer vorteilhaften Ausführung wird nach Schließung der Form die Kunststoffmasse in einem 2-K Verfahren in die Form eingebracht. Hierbei wird zunächst unverstärkte Kunststoffmasse, die keine Fasern enthält, in die geschlossene Form eingebracht bzw. eingespritzt. Anschließend wird faserverstärkte Kunststoffmasse, die beispielsweise GFK-Fasern enthält, in die Form eingebracht. Die unverstärkte Kunststoffmasse umschließt zuverlässig die eingelegten Matten und bindet diese fest in der Kunststoffmasse ein. Die im zweiten Schritt eingebrachte verstärkte Kunststoffmasse erhöht die Stabilität und die Festigkeit des gesamten Kunststofflaugenbehälters. Sowohl für die Bereiche mit Gewebematten als auch für die Bereiche ohne Gewebematten werden durch die faserverstärkte Kunststoffmasse die Stabilität und Festigkeit zusätzlich erhöht.In an advantageous embodiment, after closing the mold, the plastic mass is introduced into the mold in a 2-K process. Here, initially unreinforced plastic material containing no fibers introduced or injected into the closed mold. Subsequently is fiber-reinforced plastic material containing, for example, fiberglass fibers, introduced into the mold. The unreinforced plastic compound reliably encloses the inserted mats and binds them firmly in the plastic compound. The reinforced plastic compound introduced in the second step increases the stability and strength of the entire plastic tub. Both for the areas with fabric mats and for the areas without fabric mats the fiber-reinforced plastic mass additionally increases the stability and strength.

Einige Ausführungsbeispiele der Erfindung werden anhand der nachstehenden Figuren näher erläutert; dabei zeigen:

Figur 1:
eine perspektivische Darstellung eines Laugenbehälters;
Figur 2:
eine erste Ausführungsform eines metallischen Lagerkreuzes mit bereichsweise angedeuteten Bewehrungsmitteln;
Figur 3:
eine weitere Ausführungsform gemäß der Erfindung eines Lagerkreuzes mit vollständiger Einfassung von Bewehrungsmitteln;
Figur 4:
eine schematische Darstellung eines Bewehrungsmittels;
Figur 5:
eine schematische Darstellung einer Waschmaschine;
Figur 6:
eine Ausführungsform für eine Nabe mit bereichsweise angeordneten Bewehrungsmittel und
Fig. 7a, 7b, 7c:
eine schematische Darstellung einer Spritzgussform für die Herstellung des Kunststofflaugenbehälters.
Some embodiments of the invention will be explained in more detail with reference to the following figures; show:
FIG. 1:
a perspective view of a tub;
FIG. 2:
a first embodiment of a metallic bearing cross with regionally indicated reinforcement means;
FIG. 3:
a further embodiment according to the invention of a bearing cross with complete enclosure of reinforcing means;
FIG. 4:
a schematic representation of a reinforcing means;
FIG. 5:
a schematic representation of a washing machine;
FIG. 6:
an embodiment of a hub with partially arranged reinforcement and
7a, 7b, 7c:
a schematic representation of an injection mold for the production of the plastic liquor container.

Die Figur 1 zeigt in der perspektivischen Darstellung einen Kunststofflaugenbehälter 1 für eine Waschmaschine umfassend ein die Trommel umgebendes, zylinderförmiges Behältnis 2, wobei in einer der Stirnwände 3 ein metallisches Lagerkreuz 4 mit einer Nabe 5 zur Aufnahme einer hier nicht dargestellten Antriebswelle für eine Trommel in der Kunststoffmasse eingebunden ist.1 shows a perspective view of a plastic tub 1 for a washing machine comprising a drum surrounding the cylindrical container 2, wherein in one of the end walls 3, a metallic bearing cross 4 with a hub 5 for receiving a drive shaft for a drum, not shown here in the Plastic compound is involved.

In Figur 5 ist beispielhaft eine Waschmaschine 11 dargestellt, die einen Kunststofflaugenbehälter 1 mit einer darin drehbar angeordneten Trommel 12 umfasst. Die Trommel 12 besitzt an zumindest einem Ende eine Antriebswelle 13, die in der Nabe 5 des am Laugenbehälter 1 befestigten Lagerkreuzes 4 gelagert ist.FIG. 5 shows, by way of example, a washing machine 11 which comprises a plastic liquid container 1 with a drum 12 arranged rotatably therein. The drum 12 has at least one end of a drive shaft 13 which is mounted in the hub 5 of the attached to the tub 1 bearing cross 4.

Wie aus der Figur 2 zu erkennen ist, sind an dem Lagerkreuz 4 bereichsweise Gewebematten 6 als Bewehrungsmittel vorgesehen, die mit in die Kunststoffmasse eingebunden werden. Hierbei überdecken die im wesentlichen flächig ausgeführten Gewebematten 6 zumindest teilweise das Lagerkreuz 4 bzw. einige der Lagerkreuzarme 8. Auch die Nabe 5 wird zumindest teilweise von den Gewebematten 6 überdeckt. Die Gewebematten 6 sind so ausgeführt, dass sie der räumlichen Kontur des Lagerkreuzes 4 im Überdeckungsbereich folgen und somit eine von der Ebene der Behälterwand 3 abweichende Form aufweisen. Hierdurch korrespondieren die Gewebematten 6 im wesentlichen mit der Form des Lagerkreuzes 4, bzw. der Lagerkreuzarme 8 und der Nabe 5. Die Gewebematte 6 ist entsprechend der auftretenden Spannungskraftlinien 10 ausgerichtet, um den Bereich optimal zu verstärken und mögliche partielle Materialdehnungen der Behälterwand 3 zu vermindern.As can be seen from Figure 2, tissue mats 6 are provided as reinforcing means in some areas on the bearing cross 4, which are integrated with the plastic compound. In this case, the substantially planar running fabric mats 6 at least partially cover the bearing cross 4 or some of the bearing cross arms 8. The hub 5 is at least partially from the fabric mats 6 covered. The fabric mats 6 are designed so that they follow the spatial contour of the bearing cross 4 in the overlap region and thus have a deviating from the plane of the container wall 3 shape. As a result, the fabric mats 6 correspond substantially to the shape of the bearing cross 4, or the bearing cross arms 8 and the hub 5. The fabric mat 6 is aligned according to the occurring tension lines 10 in order to optimally reinforce the area and to reduce possible partial material expansions of the container wall 3 ,

Die Figur 3 zeigt insbesondere eine Ausführungsform, bei der der gesamte Bereich des metallischen Lagerkreuzes 4 von zumindest einer Gewebematte 6 als Bewehrungsmittel eingefasst bzw. überdeckt ist. Hierbei sind alle Lagerkreuzarme 8 vollständig oder nahezu vollständig von der Gewebematte 6 eingefasst. Auch hier weist die Gewebematte 6 eine mit dem Lagerkreuz 4 korrespondierende Form auf, wobei nur ein Bereich an der Stirnseite der Nabe 5 frei bleibt. Die Matte 6 kann als ebenes Teil auf die Kontur des Lagerkreuzes 4 gepresst werden, wodurch sie eine entsprechende von der Ebene abweichende Form enthält. Alternativ kann die zumindest eine Gewebematte 6 als Formteil mit der entsprechenden räumlichen Ausformung vorgefertigt sein, so dass sie mit der Kontur des Lagerkreuzes 4 korrespondiert. Auch in dieser Ausführungsform ist die Gewebematte 6 entsprechend der auftretenden Spannungskraftlinien 10 ausgerichtet,FIG. 3 shows, in particular, an embodiment in which the entire region of the metallic bearing cross 4 is bordered or covered by at least one fabric mat 6 as a reinforcement. Here, all bearing cross arms 8 are completely or almost completely enclosed by the fabric mat 6. Here, too, the fabric mat 6 has a shape corresponding to the bearing cross 4, wherein only one region remains free on the end face of the hub 5. The mat 6 can be pressed as a flat part on the contour of the bearing cross 4, whereby it contains a corresponding shape deviating from the plane. Alternatively, the at least one fabric mat 6 can be prefabricated as a molded part with the corresponding spatial formation, so that it corresponds to the contour of the bearing cross 4. Also in this embodiment, the fabric mat 6 is aligned according to the occurring tension lines 10,

Wie aus der Figur 4 zu erkennen ist, sind die einzelnen Fasern 9 bzw. Fäden 9, der Gewebematte 6, entsprechend der auftretenden Spannungskraftlinien 10 ausgerichtet. Der Verlauf der Fäden 9 entspricht hierbei im wesentlichen dem Verlauf der Spannungskraftlinien 10, da die Gewebematte 6 in Verlaufsrichtung der Fäden 9 die größte Dehnfestigkeit besitzt.As can be seen from FIG. 4, the individual fibers 9 or threads 9, the fabric mat 6, are aligned in accordance with the occurring tension lines 10. The course of the threads 9 in this case corresponds substantially to the course of the tension lines 10, since the fabric mat 6 has the greatest tensile strength in the direction of the threads 9.

In Fig. 6 ist eine Ausführungsform der Erfindung aufgezeigt, bei welcher ein Kunststofflaugenbehälter 1 mit einem zylinderförmigen Behältnis 2 anstelle eines Lagerkreuzes 4 eine Nabe 5a in einer Stirnwand 3 enthält. Diese Nabe 5a ist zumindest teilweise mit Gewebematten 6 überdeckt, wobei sich die Gewebematten 6 in den ebenen Bereich der Stirnwand 3 erstrecken. Es ist auch möglich, die Gewebematten 6 in die Stirnwand 3 und in den Randbereich des zylindrischen Behältnisses 2 zu verlängern, wodurch die Stabilität des Laugenbehälters 1 weiter erhöht wird.In Fig. 6, an embodiment of the invention is shown, in which a plastic container 1 with a cylindrical container 2 instead of a bearing cross 4 includes a hub 5a in an end wall 3. This hub 5a is at least partially covered with tissue mats 6, wherein the tissue mats 6 extend into the planar region of the end wall 3. It is also possible to extend the fabric mats 6 in the end wall 3 and in the edge region of the cylindrical container 2, whereby the stability of the tub 1 is further increased.

In Figur 7a ist eine Spritzgussform 14 im geöffneten Zustand aufskizziert. Gemäß der Erfindung wird weiter vorgeschlagen, dass bei der Herstellung eines Kunststofflaugenbehälters 1 zunächst in einem ersten Schritt in die Spritzgussform 14 eine Gewebematte 6 als Bewehrungsmittel 6 eingelegt wird, und in einem zweiten Schritt das metallische Lagerkreuz 4 mit der Nabe 5 in der Spritzgussform 14 fixiert wird. Während dieser Schritte befindet sich das Innenteil 15 außerhalb der Form 14. Nach dem Einlegen der Gewebematten 6 und der Fixierung des Lagerkreuzes 4 in der Form 14 wird das Innenteil 15 in die Form 14 eingefahren, wodurch die Form 14 geschlossen wird.In Figure 7a an injection mold 14 is sketched in the open state. According to the invention it is further proposed that in the production of a plastic tub 1 first in a first step in the injection mold 14, a fabric mat 6 is inserted as a reinforcing means 6, and fixed in a second step, the metallic bearing cross 4 with the hub 5 in the injection mold 14 becomes. During these steps, the inner part 15 is located outside the mold 14. After inserting the fabric mats 6 and the fixation of the bearing cross 4 in the mold 14, the inner part 15 is retracted into the mold 14, whereby the mold 14 is closed.

Figur 7b zeigt die Spritzgussform 14 im geschlossenen Zustand. In diesem Zustand wird als dritter Schritt die Kunststoffmasse 17 in die Form 14 eingebracht. Hierzu besitzt die Form 14 zumindest eine Zulaufleitung 16, über die die flüssige oder zähflüssige Kunststoffmasse 17 in die Form 14 eingespritzt wird.FIG. 7b shows the injection mold 14 in the closed state. In this state, the plastic compound 17 is introduced into the mold 14 as a third step. For this purpose, the mold 14 has at least one feed line 16, via which the liquid or viscous plastic mass 17 is injected into the mold 14.

Alternativ hierzu wird auch gemäß einem Verfahren vorgeschlagen, dass zunächst in einem ersten Schritt eine Gewebematte 6 als Bewehrungsmittel um das metallische Lagerkreuz 4 gelegt wird, wie dies in der Figur 2 oder 3 dargestellt wird, und dann in einem zweiten Schritt das metallische Lagerkreuz 4 mit der Gewebematte 6 in der Spritzgussform 14 fixiert wird, wobei dann in einem dritten Schritt, nach Schließung der Form 14, die Kunststoffmasse 17 in die Form 14 eingebracht wird.Alternatively, it is also proposed according to a method that initially in a first step, a fabric mat 6 is placed around the metallic bearing cross 4 as a reinforcing means, as shown in Figure 2 or 3, and then in a second step with the metallic bearing cross 4 the fabric mat 6 is fixed in the injection mold 14, wherein in a third step, after closure of the mold 14, the plastic mass 17 is introduced into the mold 14.

In Figur 7c ist eine mit dem Innenteil 15 geschlossene Form 14 und darin eingelegten Matten 6 und Lagerkreuz 4 aufskizziert. Durch die Zulaufleitung 16 wird zunächst Kunststoffmasse 17 ohne Fasern in die Form eingespritzt, wodurch die Matte 6 in der Kunststoffmasse 17 eingebunden wird. Anschließend wird durch die Zulaufleitung 16a eine faserverstärkte Kunststoffmasse 17a in die Form 14 eingebracht, wodurch eine gute Einbindung aller innerhalb der Form 14 eingebrachten Komponenten 4, 6 in der durch faserverstärkten Kunststoffmasse 17a erfolgt. Es ist auch möglich, die faserverstärkte Kunststoffmasse 17a über die Zulaufleitung 16 für die unverstärkte Kunststoffmasse 17 in die Form einzubringen.In Figure 7c is closed with the inner part 15 closed mold 14 and inserted therein mats 6 and bearing cross 4. Through the feed line 16, plastic compound 17 is first injected without fibers into the mold, whereby the mat 6 is integrated in the plastic compound 17. Subsequently, a fiber-reinforced plastic compound 17a is introduced into the mold 14 by the feed line 16a, whereby a good integration of all introduced within the mold 14 components 4, 6 takes place in the fiber-reinforced plastic mass 17a. It is also possible to introduce the fiber-reinforced plastic compound 17a via the feed line 16 for the unreinforced plastic compound 17 into the mold.

In Figur 7a, 7b, 7c ist die Positionierung der Zulaufleitungen 16, 16a nur beispielhaft skizziert, alternative Positionen oder die Ausführung mit mehreren Zulaufleitungen 16, 16a sind ebenfalls möglich.In FIGS. 7a, 7b, 7c, the positioning of the supply lines 16, 16a is outlined only as an example, alternative positions or the embodiment with a plurality of supply lines 16, 16a are also possible.

Claims (12)

Kunststofflaugenbehälter (1) für eine Waschmaschine (11) umfassend ein eine Trommel (12) umgebendes, zylinderförmig geformtes Behältnis (2), wobei in einer der Stirnwände (3) eine Nabe (5a) oder ein metallisches Lagerkreuz (4) mit einer Nabe (5) zur Aufnahme einer Antriebswelle (13) für die Trommel (12) eingebunden ist,
dadurch gekennzeichnet,
dass in der Behälterwand (2, 3) flächig ausgebildete Gewebematten (6) als Bewehrungsmittel zumindest bereichsweise eingebunden sind und dass die Gewebematten (6) zumindest teilweise das metallische Lagerkreuz (4) oder die Nabe (5, 5a) überdecken.Plastic container (1) for a washing machine (11) comprising a cylinder-shaped container (2) surrounding a drum (12), wherein in one of the end walls (3) a hub (5a) or a metallic bearing cross (4) with a hub (4) 5) is incorporated for receiving a drive shaft (13) for the drum (12),
characterized,
that in the container wall (2, 3) flat fabric mats (6) are at least partially integrated as a reinforcing means and that the fabric mats (6) at least partially cover the metallic bearing cross (4) or the hub (5, 5a). Kunststofflaugenbehälter nach Anspruch 1,
dadurch gekennzeichnet,
dass die Gewebematten (6) im Bereich des metallischen Lagerkreuzes (4) oder der Nabe (5) eine von der Ebene der Behälterwand (3) abweichende Kontur aufweisen, die mit der Form des Lagerkreuzes (4) oder der Nabe (5, 5a) im wesentlichen korrespondiert.Plastic container according to claim 1,
characterized,
in that the fabric mats (6) in the region of the metallic bearing cross (4) or the hub (5) have a contour deviating from the plane of the container wall (3) which corresponds to the shape of the bearing cross (4) or the hub (5, 5a). essentially corresponds. Kunststofflaugenbehälter nach Anspruch 1,
dadurch gekennzeichnet,
dass die Gewebematten (6) aus GFK-Fasern oder GFK-Fäden bestehen.Plastic container according to claim 1,
characterized,
that the fiber mats (6) consist of fiberglass fibers or fiberglass yarns. Kunststofflaugenbehälter nach Anspruch 1,
dadurch gekennzeichnet,
dass die Gewebematten (6) aus Keflar-Fasern oder Keflar-Fäden bestehen.Plastic container according to claim 1,
characterized,
that the fiber mats (6) consist of Kevlar fibers or Kevlar yarns. Kunststofflaugenbehälter nach Anspruch 1,
dadurch gekennzeichnet,
dass die Gewebematten (6) aus Carbon-Fasern oder Carbon-Fäden bestehenPlastic container according to claim 1,
characterized,
that the fiber mats (6) consist of carbon fibers or carbon filaments Kunststofflaugenbehälter nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass der Verlauf der Fasern oder Fäden in der Gewebematte (6) im wesentlichen (9) entsprechend der auftretenden Spannungskraftlinien (10) innerhalb der Behälterwand (3) ausgerichtet sind.Plastic container according to claim 1 or 2,
characterized,
in that the course of the fibers or threads in the fabric mat (6) is substantially (9) aligned with the occurring tension lines (10) within the container wall (3). Kunststofflaugenbehälter nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass die wenigstens eine Gewebematte (6) im wesentlichen den gesamten Bereich des metallischen Lagerkreuzes (4) und zumindest teilweise die Nabe (5) überdeckt.Plastic container according to one of claims 1 to 6,
characterized,
in that the at least one fabric mat (6) covers substantially the entire area of the metallic bearing cross (4) and at least partially the hub (5). Kunststofflaugenbehälter nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
dass die wenigstens eine Gewebematte (6) zumindest teilweise über den äußeren Bereich des metallischen Lagerkreuzes (4) hinausragt.Plastic container according to one of claims 1 to 7,
characterized,
the at least one woven fabric mat (6) at least partially over the outer region of the metallic bearing (4) protrudes. Kunststofflaugenbehälter nach Anspruch 8,
dadurch gekennzeichnet,
dass die wenigstens eine Gewebematte (6) zumindest teilweise aus der Stirnwand (3) in den Randbereich der zylindrischen Behälterwand (2) ragt.Plastic container according to claim 8,
characterized,
in that the at least one fabric mat (6) projects at least partially from the end wall (3) into the edge region of the cylindrical container wall (2). Verfahren zur Herstellung eines Kunststofflaugenbehälter (1) für eine Waschmaschine (11) umfassend ein die Trommel (12) umgebendes, zylinderförmig geformtes Behältnis (2), wobei in einer der Stirnwände (3) eine Nabe (5a) oder ein metallisches Lagerkreuz (4) mit einer Nabe (5) zur Aufnahme einer Antriebswelle (13) für die Trommel (12) in der Kunststoffmasse (17) eingebunden wird,
dadurch gekennzeichnet,
dass zunächst in einem ersten Schritt zumindest eine Gewebematte (6) als Bewehrungsmittel in eine Spritzgussform (14) eingelegt wird, und in einem zweiten Schritt das metallische Lagerkreuz (4) und / oder Nabe (5, 5a) in der Spritzgussform (14) fixiert wird, wobei dann in einem dritten Schritt, nach Schließung der Form (14, 15), die Kunststoffmasse (17) in die Form (14) eingebracht wird.Method for producing a plastic tub (1) for a washing machine (11) comprising a cylinder-shaped container (2) surrounding the drum (12), wherein in one of the end walls (3) a hub (5a) or a metallic bearing cross (4) with a hub (5) for receiving a drive shaft (13) for the drum (12) in the plastic compound (17) is incorporated,
characterized,
in that first at least one fabric mat (6) is inserted as reinforcement in an injection mold (14) in a first step, and in a second step the metallic bearing cross (4) and / or hub (5, 5a) are fixed in the injection mold (14) is, then in a third step, after closure of the mold (14, 15), the plastic material (17) is introduced into the mold (14). Verfahren zur Herstellung eines Kunststofflaugenbehälter (1) für eine Waschmaschine (11) umfassend ein die Trommel (12) umgebendes, zylinderförmig geformtes Behältnis (2), wobei in einer der Stirnwände (3) eine Nabe (5a) oder ein metallisches Lagerkreuz (4) mit einer Nabe (5) zur Aufnahme einer Antriebswelle (13) für die Trommel (12) in der Kunststoffmasse (17) mit eingebunden wird,
dadurch gekennzeichnet,
dass zunächst in einem ersten Schritt zumindest eine Gewebematte (6) als Bewehrungsmittel um das metallische Lagerkreuz (4) und / oder die Nabe (5, 5a) gelegt wird, und in einem zweiten Schritt das metallische Lagerkreuz (4) und / oder die Nabe mit der Bewehrung (6) in die Spritzgussform (14) eingelegt wird, wobei dann in einem dritten Schritt, nach Schließung der Form (14, 15) die Kunststoffmasse (17) in die Form (14) eingebracht wird.Method for producing a plastic tub (1) for a washing machine (11) comprising a cylinder-shaped container (2) surrounding the drum (12), wherein in one of the end walls (3) a hub (5a) or a metallic bearing cross (4) with a hub (5) for receiving a drive shaft (13) for the drum (12) in the plastic compound (17) is integrated,
characterized,
in that, first, in a first step, at least one fabric mat (6) is laid around the metallic bearing cross (4) and / or the hub (5, 5a) as a reinforcement, and in a second step the metallic bearing cross (4) and / or the hub with the reinforcement (6) in the injection mold (14) is inserted, in which case in a third step, after closure of the mold (14, 15), the plastic compound (17) is introduced into the mold (14). Verfahren zur Herstellung eines Kunststofflaugenbehälter (1) nach Anspruch 10 oder 11,
dadurch gekennzeichnet,
dass nach Schließung der Form (14, 15) die Kunststoffmasse (17) in einem 2-K Verfahren in die Form eingebracht wird, derart, dass zunächst unverstärkte Kunststoffmasse (17) und anschließend faserverstärkte Kunststoffmasse (17a) in die Form (14) eingebracht wird.Method for producing a plastic-liquid container (1) according to claim 10 or 11,
characterized,
in that after closing the mold (14, 15) the plastic compound (17) is introduced into the mold in a 2-K process, such that initially unreinforced plastic mass (17) and subsequently fiber-reinforced plastic mass (17a) are introduced into the mold (14) becomes.
EP06019740A 2005-09-26 2006-09-21 Plastic tub for a washing machine and method for manufacturing such a tub Active EP1767686B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005046010A DE102005046010B3 (en) 2005-09-26 2005-09-26 Plastic drum housing for washing machine includes fiber mat reinforcement to cover the region in the end wall supporting the drum bearing hub

Publications (2)

Publication Number Publication Date
EP1767686A1 true EP1767686A1 (en) 2007-03-28
EP1767686B1 EP1767686B1 (en) 2008-10-29

Family

ID=37026566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06019740A Active EP1767686B1 (en) 2005-09-26 2006-09-21 Plastic tub for a washing machine and method for manufacturing such a tub

Country Status (4)

Country Link
US (1) US20070068199A1 (en)
EP (1) EP1767686B1 (en)
AT (1) ATE412794T1 (en)
DE (2) DE102005046010B3 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005045178B3 (en) * 2005-09-21 2006-10-12 Miele & Cie. Kg Plastics drum assembly, for a front loading horizontal drum washing machine, has a metal hub bonded into the plastics mass with embedded reinforcement fiber strands extending radially from the hub to the end wall
DE102007044883A1 (en) 2007-09-20 2009-04-09 BSH Bosch und Siemens Hausgeräte GmbH Plastic tub for a washing machine or a washer-dryer
EA017274B1 (en) * 2007-09-20 2012-11-30 Бсх Бош Унд Сименс Хаусгерете Гмбх Plastic suds tub for a washing machine or a washer/dryer
DE102007061526A1 (en) * 2007-12-20 2009-06-25 BSH Bosch und Siemens Hausgeräte GmbH Plastic suds container for a washing machine or a washer-dryer and method for producing the suds container
EP2119819B1 (en) 2008-05-14 2013-04-10 Whirlpool Corporation Washing machine with a direct drive system
EA017543B1 (en) * 2008-07-22 2013-01-30 Бсх Бош Унд Сименс Хаусгерете Гмбх Method of manufacturing a tub section for a washing machine
WO2017029416A1 (en) * 2015-08-19 2017-02-23 Teknia Montmelo, S.L. Drum assembly for a washing machine
US10326323B2 (en) 2015-12-11 2019-06-18 Whirlpool Corporation Multi-component rotor for an electric motor of an appliance
US10704180B2 (en) 2016-09-22 2020-07-07 Whirlpool Corporation Reinforcing cap for a tub rear wall of an appliance
US10975513B2 (en) 2017-03-23 2021-04-13 Midea Group Co., Ltd. Tub with bearing housing insert for a laundry washing machine
US10487435B2 (en) * 2017-03-23 2019-11-26 Midea Group Co., Ltd. Tub for a laundry washing machine
US10693336B2 (en) 2017-06-02 2020-06-23 Whirlpool Corporation Winding configuration electric motor
FR3097913B1 (en) * 2019-06-27 2021-07-02 Valeo Equip Electr Moteur PLASTIC BEARING FOR ELECTRIC ROTATING MACHINE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8510620U1 (en) * 1985-04-11 1986-05-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Laundry care device, in particular a tumble dryer or washing machine
EP1528136A2 (en) * 2003-10-29 2005-05-04 Miele & Cie. KG Washing unit for a washing machine with a plastic tub
US20050092034A1 (en) * 2003-10-29 2005-05-05 Matthias Hollenhorst Aggregate for a washing machine with a plastic sudsing container

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3098582A (en) * 1959-06-19 1963-07-23 Smith Corp A O Fiber reinforced plastic vessel and method of making the same
US3293860A (en) * 1964-05-20 1966-12-27 Gen Motors Corp Filament wound container having reinforced opening
US3655468A (en) * 1964-08-06 1972-04-11 Owens Corning Fiberglass Corp Fluid-handling constructions, apparatus and methods of production
DE1918222U (en) * 1965-02-15 1965-06-24 Makus G M B H CONTAINER FOR DISHWASHING LIQUID OR LIQUID FOR WASHING MACHINE OR DISHWASHER.
US3508677A (en) * 1968-08-20 1970-04-28 Whittaker Corp Vessel for storing high-pressure gases
US4012266A (en) * 1972-08-21 1977-03-15 Magee Donald L Method and apparatus for filament winding on a corrugated form to produce a cylindrical corrugated glass fiber part
US6453476B1 (en) * 2000-09-27 2002-09-24 Team Wendy, Llc Protective helmet
DE102005045178B3 (en) * 2005-09-21 2006-10-12 Miele & Cie. Kg Plastics drum assembly, for a front loading horizontal drum washing machine, has a metal hub bonded into the plastics mass with embedded reinforcement fiber strands extending radially from the hub to the end wall

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8510620U1 (en) * 1985-04-11 1986-05-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Laundry care device, in particular a tumble dryer or washing machine
EP1528136A2 (en) * 2003-10-29 2005-05-04 Miele & Cie. KG Washing unit for a washing machine with a plastic tub
US20050092034A1 (en) * 2003-10-29 2005-05-05 Matthias Hollenhorst Aggregate for a washing machine with a plastic sudsing container

Also Published As

Publication number Publication date
ATE412794T1 (en) 2008-11-15
US20070068199A1 (en) 2007-03-29
DE102005046010B3 (en) 2006-10-12
EP1767686B1 (en) 2008-10-29
DE502006001930D1 (en) 2008-12-11

Similar Documents

Publication Publication Date Title
EP1767686B1 (en) Plastic tub for a washing machine and method for manufacturing such a tub
EP1767685B1 (en) Plastic tub for a washing machine and method for the production of a plastic tub
EP1654110B1 (en) Rotor blade for a wind power installation
WO2010031710A9 (en) Method and apparatus for producing plastic products with integrated reinforcing structure
DE112006003893B4 (en) Washing machine with bath and tub for a washing machine
EP2203583A1 (en) Plastic tub for a washing machine or a washer dryer
DE102006049818A1 (en) Fan blade made of textile composite material
EP2241666A1 (en) Method for manufacturing a washing unit for a washing machine with a plastic tub
EP1740379B1 (en) Composite component for a vehicle body, in particular a vehicle roof, and production method for said component
DE69821737T2 (en) METHOD FOR PRODUCING A TUNNEL, CHAMBER LINING OR PIPELINES
EP2040352B1 (en) Airgap sleeve and manufacturing method thereof
DE102010039802A1 (en) blow
DE102013222356B4 (en) Method for producing an integral fiber composite component with an insert element
EP2227579B1 (en) Plastic liquor container for a washing machine or a clothes dryer, and method for the production of a liquor container
DE102005062546A1 (en) Cylinder head cover has a composite structure comprising a skeleton of high-strength material surrounded by a shell made of a different material
DE112006003872T5 (en) Tub with structured rear wall
WO2013079414A1 (en) Gear shift cover for a motor vehicle transmission and a method for the production thereof
EP2512769B1 (en) Plastic tub for a washing machine, and a method of making such plastic tub
DE102006010788A1 (en) Domestic appliance with liquor container, e.g. washing machine, has the liquor container fixed to ballast weight by welding together plastics regions, including projections to be shape-fitted to flat regions
DE102013220337A1 (en) Method for producing a reinforced fiber composite component
DE2605103B2 (en) Water tanks, in particular for a water heater
EP2325370A2 (en) Plastic lye container for a washing machine
DE10219495A1 (en) Vehicle body part has outer skin consisting of externally coated sheet metal part produced in coil-coating process, support structure connected to inner side of sheet metal part via intermediate layer, and sealing layer on other side
DE102011121658A1 (en) Producing a component made of a fiber composite material with edge reinforcements, comprises e.g. compressing an arrangement in a mold, obtained by impregnating a fiber laminate layer with a resin, and curing the obtained component
DE102018117471A1 (en) Fiber composite component for use in the motor vehicle sector and method for producing such a fiber composite component

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20070816

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502006001930

Country of ref document: DE

Date of ref document: 20081211

Kind code of ref document: P

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20081202

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
LTIE Lt: invalidation of european patent or patent extension

Effective date: 20081029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090209

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090129

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090228

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090330

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090129

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

26N No opposition filed

Effective date: 20090730

BERE Be: lapsed

Owner name: MIELE & CIE. K.G.

Effective date: 20090930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090921

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090921

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081029

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20220920

Year of fee payment: 17

Ref country code: DE

Payment date: 20220930

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20220926

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20220926

Year of fee payment: 17

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230529

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502006001930

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230921