EP2309048B1 - Drum for a washing machine - Google Patents
Drum for a washing machine Download PDFInfo
- Publication number
- EP2309048B1 EP2309048B1 EP09401021A EP09401021A EP2309048B1 EP 2309048 B1 EP2309048 B1 EP 2309048B1 EP 09401021 A EP09401021 A EP 09401021A EP 09401021 A EP09401021 A EP 09401021A EP 2309048 B1 EP2309048 B1 EP 2309048B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- rib
- bead
- side face
- free end
- 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.)
- Active
Links
- 238000005406 washing Methods 0.000 title claims description 25
- 238000000465 moulding Methods 0.000 claims abstract 5
- 239000007788 liquid Substances 0.000 claims description 11
- 239000011324 bead Substances 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 238000005253 cladding Methods 0.000 abstract 1
- 238000007373 indentation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 239000003599 detergent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
- D06F37/06—Ribs, lifters, or rubbing means forming part of the 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
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
- D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
- D06F37/065—Ribs, lifters, or rubbing means forming part of the receptacle ribs or lifters having means for circulating the washing liquid
-
- 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
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
- D06F37/14—Ribs or rubbing means forming part of the receptacle
- D06F37/145—Ribs or rubbing means forming part of the receptacle ribs or lifters having means for circulating the washing liquid
Definitions
- the invention relates to a drum for a washing machine with a tub, in which the drum can be rotatably mounted on a horizontal or inclined axis, comprising a cylindrical shell, which is bounded by two opposite end walls, at least one driving rib, which is mounted on the jacket and extends substantially transversely to the circumferential direction on the inner surface of the shell.
- the laundry For washing laundry in a drum washing machine, the laundry is washed with water with the addition of detergent with strong drum motion.
- the drum is hereby perforated, so that the water in the tub with the laundry, which is located in the drum, comes into contact.
- To improve the fürbefuchtung scooping ribs are mounted in the drum, which raise the water from the lower portion of the tub upwards and distribute from there over the laundry.
- the drum comprises lifting ribs which are arranged on the inside of the drum shell distributed over the circumference.
- the laundry items are raised only in the circumferential direction until it comes to detachment from the drum shell and thus the so-called laundry case.
- the lifting ribs comprise on the side surfaces concave indentations, which serve as water storage units for lifting the washing liquid. Due to the concave shape of the side surface regions, it may happen that laundry items do not detach from the rib and then adhere circumferentially to the inner surface of the drum shell. Furthermore, the concave curvature forms an angular, unsteady transition at the free end of the lifting rib, which can greatly deform or rub the laundry items lying there.
- the EP 0 245 721 A1 discloses a drum for a washing machine, in which a metering memory formed as a rib is attached to the drum wall.
- the dosing storage comprises on its side surfaces indentations through which water is directed into the interior of the rib so that it can trickle out of holes in overhead position again.
- the EP 0351671 A1 discloses a drum for a washing machine with the features of the preamble of claim 1.
- the invention is therefore based on the object to provide a drum with lifting ribs, in which the mixing of the laundry with the washing liquid is gentle and particularly effective.
- the essential advantage of the drum according to the invention is that an improved movement of the laundry items within the drum is achieved when arranged approximately horizontally or inclined and with a usual for the washing phase speed, for example 20 to 70 rpm is rotated. Furthermore, the conservation of the laundry items is maintained, so that premature wear or damage can be avoided.
- the drum according to the invention comprises lifting ribs which have at least one side surface with a convex curvature.
- the side surface extends on the lateral surface almost at right angles in the direction of the interior of the drum and, starting therefrom, continues to flatten continuously up to the free end of the rib, the side surface having at least one bead-like indentation.
- the bead-like indentation is open towards the free end of the rib, so that the convexly curved bottom surface of the bead merges into the convex curvature of the side surface.
- This provides a smooth and continuous transition of the bead-like indentation forming the water storage unit to the side surface of the rib. A jamming of the laundry items on the rib is largely avoided by this design.
- the bottom surface of the bead-like indentation is convex. This improves the sliding of the laundry within the bead-like depression.
- the side surfaces are formed in the region of the free end free of beads or indentations, so that these areas that protrude furthest into the interior of the drum, are very smooth.
- the side surface of the rib has at least two longitudinally adjacent beads, which are separated by a web which forms a non-molded portion of the side surface. Through the remaining web, a guide of the sliding along the rib along laundry items in the circumferential direction of the drum is effected. Undesirable entanglement is thereby avoided.
- the beads have an approximately rectangular or U-shaped contour.
- the depressions can occupy a large area of the side surface of the rib to improve the scooping action.
- the rib has a groove extending in the longitudinal direction in the longitudinal direction. This groove provides at the transition to the side surface a tear-off edge, which prevents the running of the side surface washing liquid flows along the other side surface of the same rib.
- the scooping action ie the lifting of a subset of washing liquid, which then, when the rib is raised, again bursts onto the laundry from above onto the laundry, is improved in this way.
- both side surfaces which form the rib convex, so that the rib has an approximately parabolic cross-section.
- the cross section of the rib is designed substantially symmetrical.
- a side surface is formed with respect to the opposite side surface of a rib shallower rising or with a smaller curvature. This can be effected for a direction of rotation of the drum a good scooping action and with the opposite direction of rotation a good mechanical action on the laundry items.
- the lifting rib is designed as a scooping rib, which has holes for the exit of washing liquid in the apex region, the side surfaces being unperforated. Through the holes can then escape inside the rib exempted washing liquid, when the rib is raised so far that the holes point down.
- the drum has a diameter in the range of 45 to 60 cm, the rib has a height of 3 to 8 cm and the bead-like recess at the lowest point about 1 to 5 mm.
- the drum volume of about 45 I to 65 I, it is expedient to perform the rib with a height of about 3 to 5 cm.
- Fig. 1 is a purely schematic representation of a washing machine 1, shown with a tub 2.
- the position and direction information refers to the correct operation Aufstellposition the washing machine 1.
- a rotatably mounted on a horizontal or inclined axis 27 and driven by an electric motor 13 drum 3 is arranged, which moves the laundry in the tub 2 or in the drum 3 8.
- the drum 3 is made in the present embodiment of stainless steel and provided with a plurality of holes for the flooding.
- the housing 4 has a loading opening 9, via which the interior of the drum 3 can be reached through the sealing sleeve 6.
- the loading opening 9 can be closed by means of the door 5.
- a radiator (not shown) is arranged in the lower region of the tub 2.
- an inlet valve 15 is sketched, which controls the entry of the water from the supply network.
- the water is passed through the connecting pipe 14 in the tub 2, wherein in the dispenser 11 entered detergent is flushed into the tub 2.
- a drain device 12 is arranged, which brings out the spent washing liquid or the rinse water 7 from the tub 2 to the drain line 16, which usually opens into a sewer.
- the control device 17 controls the water inlet 15, the activity of the drain device 12 and the drive motor 13, which is energized via the power unit or a frequency converter 18.
- Fig. 2 the drum 3 is shown, which consists of a jacket 10 and two opposite end walls 20, wherein here for better illustration of the inside of the jacket 19, the front end face is removed.
- On the inside 10 a of the shell 10 are distributed over the circumference several scooping ribs 21, in this example, three, attached.
- the scoop ribs 21 are parabolic in profile.
- the drum 3 is perforated, the holes being distributed, uniformly or non-uniformly, on the shell 10 and having a diameter of about 1.8 to 2.5 mm, preferably 2 mm.
- the drum shell 10 is in this case divided into three sections, which are each bounded by the scoop ribs 21. In this example, the drum 3 is rotated in the circumferential direction U.
- the laundry 8 (located in the drum 3) Fig. 1 ) is raised by means of the rib 21. Once the rib 21 is located above the center, the side surface 22 is positioned obliquely so far that the entrained laundry items 8 slide down from the rib 21, as sketched by the arrow A. The bead-like depressions 19 stabilize the laundry items 8 sliding along the rib in the direction A, so that unwanted entanglement due to undefined rolling movements is avoided or at least reduced.
- Fig. 3 shows the rib 21 in a separate representation.
- the side surface 22 in this case has bead-like depressions 19 which start at a distance from the shell-side end 25 and merge into the side surface 22 in the region of the free end 26 of the rib 21.
- Fig. 4 shows the rib 21 in a side view.
- the cross section is in Fig. 6 shown.
- the side surface 22 at the shell-side end 25 has an angle of approximately 70 ° with respect to the inner surface 10b of the shell 10.
- the side surface 22 is convex, so that both side surfaces 22, 22b forming the rib 21 form a parabolic cross-section.
- the section line AA extends in the region of the bead-like recesses 19.
- the bead-like recess 19 begins with a depth of about 2 mm, which ends before the free end 26, a total of about two thirds to three quarters of the total height of the side surface 22, where they are in the curvature of the unwicked side surface 22 passes.
- the bottom 24 of the bead-like recess 19 is also convexly curved, as shown in the sectional view Fig. 4 can be seen.
- the bead-like recesses 19 have an approximately rectangular or U-shaped contour 28, so that they can occupy a large proportion of the total area of the side surface 22.
- Fig. 3 is also the groove 23 can be seen, which extends in the longitudinal direction of the rib 21 and a tear-off edge 28 in the apex region or at the free end 26 of the rib 21 provides.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Centrifugal Separators (AREA)
- Treatment Of Fiber Materials (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
Description
Die Erfindung betrifft eine Trommel für eine Waschmaschine mit einem Laugenbehälter, in dem die Trommel über eine horizontale oder geneigte Achse drehbar gelagert werden kann, umfassend einen zylinderförmigen Mantel, der mittels zwei gegenüberliegenden Stirnwänden begrenzt ist, zumindest eine Mitnehmerrippe, die auf dem Mantel angebracht ist und sich im wesentlichen quer zur Umfangsrichtung auf der Innenfläche des Mantels erstreckt.The invention relates to a drum for a washing machine with a tub, in which the drum can be rotatably mounted on a horizontal or inclined axis, comprising a cylindrical shell, which is bounded by two opposite end walls, at least one driving rib, which is mounted on the jacket and extends substantially transversely to the circumferential direction on the inner surface of the shell.
Zum Waschen von Wäsche in einer Trommelwaschmaschine wird die Wäsche mit Wasser unter Zugabe von Waschmittel mit starker Trommelbewegung gewaschen. Die Trommel ist hierbei gelocht, damit das Wasser im Laugenbehälter mit der Wäsche, die sich in der Trommel befindet, in Kontakt kommt. Zur Verbesserung der Durchfeuchtung sind in der Trommel Schöpfrippen angebracht, die das Wasser aus dem unteren Bereich des Laugenbehälters nach oben heben und von dort aus über die Wäsche verteilen.For washing laundry in a drum washing machine, the laundry is washed with water with the addition of detergent with strong drum motion. The drum is hereby perforated, so that the water in the tub with the laundry, which is located in the drum, comes into contact. To improve the Durchbefuchtung scooping ribs are mounted in the drum, which raise the water from the lower portion of the tub upwards and distribute from there over the laundry.
Aus der
Die
Die
Der Erfindung liegt deshalb die Aufgabe zu Grunde, eine Trommel mit Heberippen bereitzustellen, bei der die Durchmischung der Wäschestücke mit der Waschflüssigkeit schonend und besonders effektiv erfolgt.The invention is therefore based on the object to provide a drum with lifting ribs, in which the mixing of the laundry with the washing liquid is gentle and particularly effective.
Die Aufgabe wird durch eine Trommel mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausführungen ergeben sich aus den nachfolgenden abhängigen Ansprüchen.The object is achieved by a drum having the features of
Der wesentliche Vorteil der erfindungsgemäßen Trommel ist, dass eine verbesserte Bewegung der Wäschestücke innerhalb der Trommel erreicht wird, wenn diese etwa horizontal oder geneigt angeordnet und mit einer für die Waschphase üblichen Drehzahl, beispielsweise 20 bis 70 u/min gedreht wird. Ferner wird die Schonung der Wäschestücke beibehalten, so dass vorzeitiger Verschleiß oder Beschädigungen vermieden werden.The essential advantage of the drum according to the invention is that an improved movement of the laundry items within the drum is achieved when arranged approximately horizontally or inclined and with a usual for the washing phase speed, for example 20 to 70 rpm is rotated. Furthermore, the conservation of the laundry items is maintained, so that premature wear or damage can be avoided.
Die erfindungsgemäße Trommel umfasst hierzu Heberippen, die zumindest eine Seitenfläche mit einer konvexen Krümmung besitzen. Die Seitenfläche erstreckt sich an der Mantelfläche nahezu rechtwinklig in Richtung zum Trommelinneren und hiervon ausgehend bis zum freien Ende der Rippe stetig abflachend, wobei die Seitenfläche zumindest eine sickenartige Einformung aufweist. Mit dieser Formgebung wird erreicht, dass die Wäschestücke bei der Waschbewegung leicht von der Rippe gleiten, ohne dass sie an einer Kante des freien Endes stark gerieben werden. Ferner wird durch die Sicke eine Wasserspeichereinheit geschaffen, die einen Teil der in der Trommel befindlichen Waschflüssigkeit anheben kann, wenn sie gedreht wird. Dadurch wird die sogenannte Schöpfwirkung der Rippe erreicht.For this purpose, the drum according to the invention comprises lifting ribs which have at least one side surface with a convex curvature. The side surface extends on the lateral surface almost at right angles in the direction of the interior of the drum and, starting therefrom, continues to flatten continuously up to the free end of the rib, the side surface having at least one bead-like indentation. With this shaping it is achieved that the laundry items easily slide off the rib during the washing movement, without being heavily rubbed against one edge of the free end. Further, the bead creates a water storage unit that can lift a portion of the washing liquid in the drum when it is rotated. As a result, the so-called scooping effect of the rib is achieved.
Für den Verlauf der Seitenflächen ist es zweckmäßig, dass sie im Anlagebereich zur Mantelfläche einen Winkel von etwa 90° bis 120° zur Innenfläche des Mantels aufweisen. Dadurch wird ein starker Mitnahmeeffekt in unmittelbarer Nähe des Trommelmantels erreicht.For the course of the side surfaces, it is expedient that they have an angle of about 90 ° to 120 ° to the inner surface of the shell in the contact area to the lateral surface. As a result, a strong entrainment effect is achieved in the immediate vicinity of the drum shell.
Erfindungsgemäβ ist die sickenartige Einformung zum freien Ende der Rippe hin offen ausgebildet ist, so dass die konvex gekrümmte Bodenfläche der Sicke in die konvexe Krümmung der Seitenfläche übergeht. Dadurch wird ein sanfter und stetiger Übergang der die Wasserspeichereinheit bildenden sickenartigen Einformung zur Seitenfläche der Rippe bereitgestellt. Ein Verklemmen der Wäschestücke an der Rippe wird durch diese Formgebung weitestgehend vermieden. In einer vorteilhaften Weiterbildung ist die Bodenfläche der sickenartigen Einformung konvex ausgebildet. Dadurch wird das Gleiten der Wäschestücke innerhalb der sickenartigen Vertiefung verbessert.According to the invention, the bead-like indentation is open towards the free end of the rib, so that the convexly curved bottom surface of the bead merges into the convex curvature of the side surface. This provides a smooth and continuous transition of the bead-like indentation forming the water storage unit to the side surface of the rib. A jamming of the laundry items on the rib is largely avoided by this design. In an advantageous development, the bottom surface of the bead-like indentation is convex. This improves the sliding of the laundry within the bead-like depression.
In einer Weiterbildung sind die Seitenflächen im Bereich des freien Endes frei von Sicken oder Einformungen ausgebildet, so dass diese Bereiche, die am weitesten in das Trommelinnere ragen, sehr glatt ausgebildet sind.In a further development, the side surfaces are formed in the region of the free end free of beads or indentations, so that these areas that protrude furthest into the interior of the drum, are very smooth.
In einer vorteilhaften Ausführung weist die Seitenfläche der Rippe zumindest zwei in Längsrichtung nebeneinander liegende Sicken auf, die durch einen Steg, der einen nicht eingeformten Bereich der Seitenfläche bildet, getrennt sind. Durch den verbleibenden Steg wird eine Führung der an der Rippe entlang gleitenden Wäschestücke in Umfangsrichtung der Trommel bewirkt. Unerwünschtes Verknäulen wird dadurch vermieden.In an advantageous embodiment, the side surface of the rib has at least two longitudinally adjacent beads, which are separated by a web which forms a non-molded portion of the side surface. Through the remaining web, a guide of the sliding along the rib along laundry items in the circumferential direction of the drum is effected. Undesirable entanglement is thereby avoided.
In einer zweckmäßigen Ausführung weisen die Sicken eine etwa rechteckige bzw. U-förmige Kontur auf. Dadurch können die Vertiefungen eine große Fläche der Seitenfläche der Rippe beanspruchen zur Verbesserung der Schöpfwirkung.In an expedient embodiment, the beads have an approximately rectangular or U-shaped contour. As a result, the depressions can occupy a large area of the side surface of the rib to improve the scooping action.
In einer weiteren, vorteilhaften Ausführung besitzt die Rippe im Scheitelbereich eine sich in Längsrichtung erstreckende Nut. Diese Nut stellt am Übergang zur Seitenfläche eine Abrisskante bereit, die verhindert, dass die von der Seitenfläche ablaufende Waschflüssigkeit an der anderen Seitenfläche derselben Rippe entlang fließt. Die Schöpfwirkung, also das Anheben einer Teilmenge an Waschflüssigkeit, die dann bei angehobener Rippe wieder in den Behandlungsraum von oben auf die Wäsche schwallartig fällt, wird auf diese Weise verbessert.In a further advantageous embodiment, the rib has a groove extending in the longitudinal direction in the longitudinal direction. This groove provides at the transition to the side surface a tear-off edge, which prevents the running of the side surface washing liquid flows along the other side surface of the same rib. The scooping action, ie the lifting of a subset of washing liquid, which then, when the rib is raised, again bursts onto the laundry from above onto the laundry, is improved in this way.
In einer vorteilhaften Ausführung sind beide Seitenflächen, die die Rippe bilden, konvex ausgebildet, so dass die Rippe einen etwa parabelförmigen Querschnitt besitzt. Hierbei ist der Querschnitt der Rippe im Wesentlichen symmetrische ausgeführt.In an advantageous embodiment, both side surfaces which form the rib, convex, so that the rib has an approximately parabolic cross-section. Here, the cross section of the rib is designed substantially symmetrical.
In einer anderen Ausführung ist eine Seitenfläche bezogen auf die gegenüberliegende Seitenfläche einer Rippe flacher ansteigend oder mit einer geringeren Krümmung ausgebildet. Damit kann für eine Drehrichtung der Trommel eine gute Schöpfwirkung und mit der entgegen gesetzten Drehrichtung eine gute mechanische Einwirkung auf die Wäschestücke bewirkt werden.In another embodiment, a side surface is formed with respect to the opposite side surface of a rib shallower rising or with a smaller curvature. This can be effected for a direction of rotation of the drum a good scooping action and with the opposite direction of rotation a good mechanical action on the laundry items.
Zur Verbesserung der Schöpfwirkung ist die Heberippe als Schöpfrippe ausgebildet, die im Scheitelbereich Löcher für das Austreten von Waschflüssigkeit aufweist, wobei die Seitenflächen ungelocht sind. Durch die Löcher kann dann innerhalb der Rippe ausgenommene Waschflüssigkeit austreten, wenn die Rippe so weit angehoben ist, dass die Löcher nach unten zeigen.To improve the scooping action, the lifting rib is designed as a scooping rib, which has holes for the exit of washing liquid in the apex region, the side surfaces being unperforated. Through the holes can then escape inside the rib exempted washing liquid, when the rib is raised so far that the holes point down.
Für Haushaltswaschmaschinen, die eine Beladung von 6 bis 10 Kg Trockenwäsche zulassen, ist es zweckmäßig, dass die Trommel einen Durchmesser im Bereich von 45 bis 60 cm aufweist, die Rippe eine Höhe von 3 bis 8 cm und die sickenartige Einbuchtung an der tiefsten Stelle etwa 1 bis 5 mm beträgt. Bei Haushaltswaschmaschinen mit einem Trommelvolumen von etwa 45 I bis 65 I ist es zweckmäßig, die Rippe mit einer Höhe von etwa 3 bis 5 cm auszuführen.For household washing machines, which allow a loading of 6 to 10 kg of dry laundry, it is appropriate that the drum has a diameter in the range of 45 to 60 cm, the rib has a height of 3 to 8 cm and the bead-like recess at the lowest point about 1 to 5 mm. For household washing machines with a drum volume of about 45 I to 65 I, it is expedient to perform the rib with a height of about 3 to 5 cm.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigen:
- Fig. 1:
- eine Waschmaschine in einer skizzierten Schnittdarstellung;
- Fig. 2:
- die Trommel in einer perspektivischen Ansicht und
- Fig. 3 bis 6:
- die Heberippe in verschiedenen Ansichten.
- Fig. 1:
- a washing machine in a sketched sectional view;
- Fig. 2:
- the drum in a perspective view and
- 3 to 6:
- the heel lip in different views.
In
In
In
Claims (11)
- Drum (3) for a washing machine (1) having a suds container (2), in which the drum (3) can be rotatably mounted via a horizontal or oblique axis (27), comprising a cylindrical skirt (10), which is delimited by two opposing end walls (20), at least one engagement rib (21) which is attached to the skirt (10) and extends on the inner surface (10a) of the skirt (10) substantially transversely to the circumferential direction (U),
characterised in that
the rib (21) has at least one side face (22) having a convex curvature, which extends obliquely from the skirt surface (10a) until it is almost perpendicular to the inside of the drum and from here flattens out continuously towards the free end (26) of the rib (21), at least one side face (22) comprising at least one bead-like moulding (19), which is open towards the free end (26) of the rib (21) so that the convexly curved base (24) of the bead (19) transitions into the convex curvature of the side face (22) to provide a continuous transition from the bead-like moulding (19) into the side face (22) of the bead (21). - Drum (3) according to claim 1,
characterised in that
in the contact region with the skirt surface (10a), the side face (22) is at an angle of approximately 90° to 120° to the skirt surface (10a). - Drum (3) according to claim 1,
characterised in that
the base (24) of the bead-like moulding (19) is flat or convex. - Drum (3) according to claim 1,
characterised in that
the side faces (22) are free from beads or mouldings in the region of the free end (26). - Drum (3) according to any one of claims 1 to 4,
characterised in that
the side faces (22) of the rib (21) comprise at least two beads (19) which are positioned side by side in the longitudinal direction and are separated by a web (22a) which forms an unmoulded region of the side faces (22). - Drum (3) according to claim 1,
characterised in that
the bead-like depressions (19) have an approximately rectangular or U-shaped contour (28). - Drum (3) according to claim 1,
characterised in that
at its free end (26) in the vertex region, the rib (21) has a groove (23) which extends in the longitudinal direction to provide at least one tearing edge (27). - Drum (3) according to claim 1,
characterised in that
the two side faces (22, 22a) which form the rib (21) are convex so that the rib (21) has a parabolic cross-section. - Drum (3) according to any one of claims 1 to 7,
characterised in that
one side face (22) is more gently inclined or has a lower curvature than the opposite side face (22a) of a rib (21). - Drum (3) according to any one of claims 1 to 9,
characterised in that
the lifting rib (21) is a scoop rib which comprises holes in the vertex region (26) for the escape of washing liquid, the side faces (22) having no holes. - Drum (3) according to claim 1,
characterised in that
the drum (3) has a diameter in the range of 45 to 60 cm, the rib (21) has a height of 3 to 8 cm, and the bead-like notch (19) has a height of approximately 1 to 5 mm at its deepest point.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09401021A EP2309048B1 (en) | 2009-10-06 | 2009-10-06 | Drum for a washing machine |
AT09401021T ATE541976T1 (en) | 2009-10-06 | 2009-10-06 | DRUM FOR A WASHING MACHINE |
ES09401021T ES2376969T3 (en) | 2009-10-06 | 2009-10-06 | Drum for a washing machine |
PL09401021T PL2309048T3 (en) | 2009-10-06 | 2009-10-06 | Drum for a washing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09401021A EP2309048B1 (en) | 2009-10-06 | 2009-10-06 | Drum for a washing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2309048A1 EP2309048A1 (en) | 2011-04-13 |
EP2309048B1 true EP2309048B1 (en) | 2012-01-18 |
Family
ID=42101970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09401021A Active EP2309048B1 (en) | 2009-10-06 | 2009-10-06 | Drum for a washing machine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2309048B1 (en) |
AT (1) | ATE541976T1 (en) |
ES (1) | ES2376969T3 (en) |
PL (1) | PL2309048T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112654742A (en) * | 2018-08-30 | 2021-04-13 | Lg电子株式会社 | Washing machine and control method thereof |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015210996A1 (en) * | 2015-06-16 | 2016-12-22 | BSH Hausgeräte GmbH | Carrier and driver arrangement for a laundry drum of a household appliance for treating laundry |
DE102020108764A1 (en) | 2020-03-30 | 2021-09-30 | Miele & Cie. Kg | Method and control unit for operating a cleaning device in a gentle cycle and cleaning device |
DE102020108682A1 (en) | 2020-03-30 | 2021-09-30 | Miele & Cie. Kg | Method and control unit for operating a cleaning device for the pretreatment and main treatment of textiles and cleaning device |
DE102020108677A1 (en) | 2020-03-30 | 2021-09-30 | Miele & Cie. Kg | Method and control unit for carrying out a spin program for a cleaning device and cleaning device |
BE1029571B1 (en) | 2021-07-09 | 2023-02-06 | Miele & Cie | Drum for a washing machine and washing machine |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734368A (en) * | 1956-02-14 | richardson | ||
DE3712118A1 (en) | 1986-05-06 | 1987-11-12 | Bosch Siemens Hausgeraete | DRUM WASHING MACHINE |
DE8816711U1 (en) * | 1988-07-16 | 1990-04-12 | Henkel KGaA, 4000 Düsseldorf | Dosing memory |
KR100465724B1 (en) | 2002-12-26 | 2005-01-13 | 엘지전자 주식회사 | Lift of drum washer |
KR101073508B1 (en) * | 2003-11-17 | 2011-10-17 | 삼성전자주식회사 | Clothes Drying Apparatus |
US7299665B2 (en) * | 2004-03-19 | 2007-11-27 | Lg Electronics Inc. | Lift for drum-type washing machine |
DE102007036619B3 (en) * | 2007-08-02 | 2008-09-18 | Miele & Cie. Kg | Drum for washing machine, has suds container, in which drum is rotatably supported on horizontal or inclined axis, and drum has rear wall and casing is provided with holes |
PL2039820T3 (en) * | 2007-09-21 | 2011-07-29 | Whirlpool Co | Front loading machine with hydrodynamic lifter |
-
2009
- 2009-10-06 AT AT09401021T patent/ATE541976T1/en active
- 2009-10-06 EP EP09401021A patent/EP2309048B1/en active Active
- 2009-10-06 PL PL09401021T patent/PL2309048T3/en unknown
- 2009-10-06 ES ES09401021T patent/ES2376969T3/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112654742A (en) * | 2018-08-30 | 2021-04-13 | Lg电子株式会社 | Washing machine and control method thereof |
EP3845696A4 (en) * | 2018-08-30 | 2022-05-18 | LG Electronics Inc. | Washing machine and method for controlling washing machine |
Also Published As
Publication number | Publication date |
---|---|
ES2376969T3 (en) | 2012-03-21 |
EP2309048A1 (en) | 2011-04-13 |
PL2309048T3 (en) | 2012-05-31 |
ATE541976T1 (en) | 2012-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2309048B1 (en) | Drum for a washing machine | |
EP2044253B1 (en) | Washing machine with hollow drivers | |
DE60319472T2 (en) | A washer and dryer with an improved condensation channel | |
EP1644566B1 (en) | Washing and rinsing method for a washing machine | |
DE10227863B4 (en) | drum washing machine | |
WO2006131416A1 (en) | Water-circulating household appliance with an embossed washing drum | |
EP2022882B1 (en) | Barrel for a washing machine and washing machine | |
DE2202345C3 (en) | Single drum washing machine | |
EP2038469A1 (en) | Front-loading laundry treatment machine | |
EP1700943A1 (en) | Washing machine with injection nozzle | |
EP2390399B1 (en) | Drum for a washing machine | |
EP2177657A1 (en) | Drum for a washing machine | |
EP2474659B1 (en) | Drum with curved structure for a washing machine | |
WO2009103683A1 (en) | Washing drum for a washing and/or drying machine | |
WO2001009426A1 (en) | Laundry treating machine | |
DE3881020T2 (en) | DRUM WASHING MACHINE. | |
DE112006003872T5 (en) | Tub with structured rear wall | |
DE112006003878B4 (en) | Washing machine | |
BE1029571B1 (en) | Drum for a washing machine and washing machine | |
CH492816A (en) | Tubular double drum washing machine working according to the countercurrent principle | |
EP3546634B1 (en) | Cuff and laundry treatment device | |
DE102015101456A1 (en) | Drum for a washing machine and washing machine | |
DE112018001841T5 (en) | Washing machine | |
EP2640886B1 (en) | Wash tub for accommodating a rotatably mounted washing drum, and laundry treatment machine | |
DE102018112923A1 (en) | Washing drum and washing machine |
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 |
|
17P | Request for examination filed |
Effective date: 20100811 |
|
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 HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: D06F 23/04 20060101ALI20110531BHEP Ipc: D06F 37/06 20060101ALI20110531BHEP Ipc: D06F 23/02 20060101AFI20110531BHEP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Ref document number: 502009002481 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: D06F0023020000 Ipc: D06F0037140000 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: D06F 37/06 20060101ALI20110826BHEP Ipc: D06F 37/14 20060101AFI20110826BHEP |
|
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 HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM 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: DE Ref legal event code: R084 Ref document number: 502009002481 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN Ref country code: AT Ref legal event code: REF Ref document number: 541976 Country of ref document: AT Kind code of ref document: T Effective date: 20120215 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: GC2A Effective date: 20120208 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 746 Effective date: 20120130 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2376969 Country of ref document: ES Kind code of ref document: T3 Effective date: 20120321 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502009002481 Country of ref document: DE Effective date: 20120322 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R084 Ref document number: 502009002481 Country of ref document: DE Effective date: 20120210 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20120118 |
|
REG | Reference to a national code |
Ref country code: PL Ref legal event code: LICE Effective date: 20120309 Ref country code: PL Ref legal event code: T3 |
|
LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20120118 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HR 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: 20120118 Ref country code: NO 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: 20120418 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: 20120418 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: 20120518 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: 20120118 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: 20120118 |
|
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: 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: 20120518 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: 20120118 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: 20120118 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: 20120419 |
|
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: 20120118 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20120118 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: 20120118 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: 20120118 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: 20120118 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: 20120118 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: 20120118 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: 20120118 |
|
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: 20120118 |
|
26N | No opposition filed |
Effective date: 20121019 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502009002481 Country of ref document: DE Effective date: 20121019 |
|
BERE | Be: lapsed |
Owner name: MIELE & CIE. K.G. Effective date: 20121031 |
|
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: 20121031 |
|
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: 20121031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT 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: 20120118 |
|
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: 20121006 Ref country code: SM 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: 20120118 |
|
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: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20131031 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: 20091006 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20131031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK 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: 20120118 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 541976 Country of ref document: AT Kind code of ref document: T Effective date: 20141006 |
|
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: 20141006 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 8 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 9 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20220923 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: PL Payment date: 20220909 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20221024 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20221020 Year of fee payment: 14 Ref country code: GB Payment date: 20221018 Year of fee payment: 14 Ref country code: ES Payment date: 20221117 Year of fee payment: 14 Ref country code: DE Payment date: 20221031 Year of fee payment: 14 |
|
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: 502009002481 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20231006 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231006 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231006 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231031 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20240501 |