EP2022882B1 - Barrel for a washing machine and washing machine - Google Patents

Barrel for a washing machine and washing machine Download PDF

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Publication number
EP2022882B1
EP2022882B1 EP08012668.3A EP08012668A EP2022882B1 EP 2022882 B1 EP2022882 B1 EP 2022882B1 EP 08012668 A EP08012668 A EP 08012668A EP 2022882 B1 EP2022882 B1 EP 2022882B1
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EP
European Patent Office
Prior art keywords
drum
casing
scoop
rib
opening
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EP08012668.3A
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German (de)
French (fr)
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EP2022882A2 (en
EP2022882A3 (en
Inventor
Armin Hapke
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Miele und Cie KG
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Miele und Cie KG
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Priority to PL08012668T priority Critical patent/PL2022882T3/en
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Publication of EP2022882A3 publication Critical patent/EP2022882A3/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—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
    • D06F37/12—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

Definitions

  • the invention relates to a drum for a washing machine with a tub in which the drum is rotatably mounted about a horizontal or inclined axis, comprising an end wall and a perforated jacket, wherein on the inside of the shell about V-shaped scoop ribs whose tip to the drum interior, are attached, which are provided on the shell side with openings of at least 5 times the cross section of a hole in the drum shell.
  • the invention further relates to a washing machine with a tub in which a drum is rotatably mounted about a horizontal or inclined axis and driven by a motor, wherein the drum comprises an end wall and a perforated jacket, wherein on the inside of the shell about V - shaped scoop ribs, the tips of which point to the drum interior, are mounted, which are provided on the shell side with openings of at least 5 times the cross section of a hole in the drum hole.
  • 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 lift the water from the lower portion of the tub upwards and distribute from there over the laundry.
  • a drum which has peripherally extending beads in the shell which are provided with holes in the area under the scooping ribs.
  • the scooping ribs are mounted on the protrusions so that the scrubbing liquid reaches the holes in the crimps below the scooping ribs. In this way, the laundry items are prevented from coming into contact with holes.
  • the distance of the tub wall to the beads must be complied with, so that due to the elevations between the beads gives a smaller volume for the drum. Further, it is disadvantageous that the drum can contract due to the wave-shaped shell during spin, whereby the interior can be slightly smaller.
  • a drum which has scooping ribs with a good scooping action.
  • the scoop ribs close to the drum shell have large holes that allow water to be drawn into the space inside the scoop rib.
  • the water in the drum is rinsed into the scoop rib, wherein in the drum shell within the scoop rib no openings for a fluid exchange between the drum and the tub are provided.
  • a drum for a washing machine which comprises inside approximately V-shaped scoop ribs. On the shell side openings are arranged in the areas of the rib, so that the water to be extracted can get into the rib.
  • a drum is known which has obliquely to the direction of rotation of the drum mounted scoop ribs.
  • the invention is therefore based on the object to improve the removal of dirt from a drum in a washing machine.
  • the essential advantage of the drum according to the invention is that the dirt removal of coarse dirt particles or lint from the drum is achieved in a simple manner. 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 on its drum shell scoop ribs, each having a bulge at its mantle-facing edge, which forms an opening to the interior of the scoop rib, which is surrounded by the edge of the bulge and the inside of the drum shell.
  • This dirt particles can slide along the inside of the drum shell until they reach the enlarged openings in the scoop rib. The dirt then penetrate almost unhindered through this opening into the interior of the scoop rib and of out there through the likewise large shell-side opening out of the drum out into the tub.
  • the arrangement of a few small holes in the drum shell a good laundry is achieved when turning the drum in the washing or spin phase.
  • the larger holes in the scoop rib close to the drum shell lie at an angle to the jacket and therefore do not come into so much contact with the laundry.
  • the laundry falls during washing radially to the drum shell or it is pressed during spin against the drum shell, and not so strong against the flanks of the scoop ribs. This allows the laundry items Also, do not penetrate so much into the larger holes, so that it is not damaged by pimples or thread-pulling.
  • the holes for the drum hole have a maximum diameter of 2.5 mm. In these so-called small holes, the fibers can not penetrate. Coarse dirt particles that do not fit through the holes in the drum shell can be flushed out through the openings in the pouring lip.
  • the shell-side openings are formed by C-shaped cutting of the drum shell and folding to the interior of the drum.
  • a web formed by the folding to the interior of the scoop rib is arranged on the side of the shell-side opening which is remote from the opening in the scoop rib.
  • the web is bent at an angle.
  • the web directs the washing liquid through the shell-side opening in the tub, wherein the outflow is improved.
  • the opening in the scoop rib is dimensioned so that it corresponds at least to the quadruple cross-section of the drum hole. With this size, a reliable rinsing of dirt and lint is achieved.
  • the opening in the pouring rib corresponds to 4 to 10 times the cross section of the drum hole.
  • the limitation to the 10-fold cross-section of the drum hole prevents that items of laundry can penetrate too far into these openings.
  • the V-shaped scoop rib has a course towards the jacket, which provides a substantially rectangular transition to the drum shell, wherein the openings extend from the drum shell in this transition region.
  • the scoop rib it is expedient that it is formed from a V-shaped angled sheet, which at the ends of the flanks of the Vs one after each includes inwardly directed bevel, and that the bulges on the side of the drum shell is formed in each case by a molded bead on at least one of the inwardly directed bends.
  • the fold is used for attachment, since it can be fastened with fasteners such as tabs or rivets on the drum shell.
  • the scoop rib may also be welded to the drum shell, with the fold serving to receive welds.
  • the fold in the opening forming the bead has the advantage that the opening has a rounded transition to the edge of the scoop rib.
  • the opening formed by the bulge in the scoop rib is elongated, with its longitudinal side extending along the inside of the shell.
  • slots can be provided with large cross-sections, in which the laundry items can not penetrate.
  • the longitudinal side is at least 3 times the short side of the elongated opening.
  • the scoop ribs have at their respective edge facing the drum shell at least one bulge, each forming an opening to the interior of the scoop rib, which is surrounded by the edge of the bulge and the inside of the shell, so that upon rotation of the drum through this Openings of debris in the region of the inside of the drum shell through the scoop rib are removable from the drum.
  • Fig. 1 is a purely schematic representation of a washing machine 1, shown with a tub 2.
  • the position and direction information refer to the operational installation position of the washing machine 1.
  • Within the tub 2 is a rotatably mounted on a horizontal or inclined axis 27 and driven by an electric motor 13 Drum 3 arranged in the tub 2 and in the Drum 3 located laundry items 8 moves.
  • the drum 3 is made in the present embodiment of stainless steel and with a plurality of holes 21 (FIG. Fig. 2 ) provided 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 into 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.
  • the drum 3 which consists of a jacket 19 and two opposite end walls 20. On the inside 19a of the jacket 19 are distributed over the circumference several scooping ribs 10, in this example, three, attached.
  • the scoop ribs 10 are formed in profile V-shaped and have shell-side openings 22 which are larger in cross-section by a multiple, than the holes 21 for the drum hole.
  • the openings 22 have at least a 5-fold cross-section, such as the holes 21 for the drum hole, which have a diameter of about 2 mm.
  • the 10- or 20-fold cross-section for the shell-side openings 22 is possible.
  • Fig. 3 In the detailed view, the scoop rib 10 with the protrusions 23 for forming enlarged openings 24 for improved dirt removal is shown.
  • the bulges 23 are located on the shell-side edge of the scoop rib 10 and form with the inner side 19 a of the jacket 19, the border for the respective opening 24.
  • the openings 24 are each made elongated, wherein the length of the longitudinal side is at least 3 times the length of the short side.
  • the arrangement of the openings 22 is illustrated within a scoop rib 10.
  • the scooping rib 10 is attached to the inside 19a of the drum shell 19.
  • On the shell-side edge of the bulge 23 is arranged, whereby the opening 24 is provided.
  • An inwardly directed fold 26 around the edge of the bulge 23 provides a rounded transition to the interior of the drum, in which the laundry 8 (FIG. Fig. 1 ) is located.
  • openings 22 are arranged in the drum shell 19, which provide a discharge of the washing liquid from the drum 3.
  • a flag 25 is attached to the respective opening 22 on one side, which expediently by C-shaped cutting of the drum shell 19 and subsequent folding to the drum interior or to the interior of the scoop rib 10 is formed.
  • the washing liquid to be discharged 7 ( Fig. 1 ) through the opening 24 in the scoop rib 10 and then passed through the opening 22 in the drum shell 19 in the tub 2. If the drum 3 is rotated in the direction of arrow U, the discharge of the washing liquid and thus the dirt removal can be further improved. Due to the oblique orientation of the lug 25, so that the lug 25 partially covers the opening 22, the flow of the washing liquid 7 for the removal of the dirt particles can be improved.
  • the washing liquid 7 can pass through the openings 22 in the scooping rib 10 and be raised with the rotation of the drum 3 to trickle down from an elevated position, the liquid on the laundry.
  • the washing machine 1 with the drum 3 according to the invention is particularly well suited for the cleaning and reprocessing of wipes or mops, since this particular amount of dirt and lint incurred. Also for the treatment of animal textiles, such as horse rugs or dog cushions, this washing machine 1 or drum 3 is particularly well suited because the resulting hair is at least almost completely rinsed out of the drum 3.

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

Description

Die Erfindung betrifft eine Trommel für eine Waschmaschine mit einem Laugenbehälter, in dem die Trommel über eine horizontale oder geneigte Achse drehbar gelagert ist, umfassend eine Stirnwand und einen mit Löchern versehenen Mantel, wobei an der Innenseite des Mantels etwa V-förmige Schöpfrippen, deren Spitze zum Trommelinneren zeigen, angebracht sind, die mantelseitig mit Öffnungen von mindestens dem 5-fachen Querschnitt eines Loches im Trommelmantel versehen sind.The invention relates to a drum for a washing machine with a tub in which the drum is rotatably mounted about a horizontal or inclined axis, comprising an end wall and a perforated jacket, wherein on the inside of the shell about V-shaped scoop ribs whose tip to the drum interior, are attached, which are provided on the shell side with openings of at least 5 times the cross section of a hole in the drum shell.

Die Erfindung betrifft ferner eine Waschmaschine mit einem Laugenbehälter, in dem eine Trommel über eine horizontale oder geneigte Achse drehbar gelagert und mit einem Motor angetrieben ist, wobei die Trommel eine Stirnwand und einen mit Löchern versehenen Mantel umfasst, wobei an der Innenseite des Mantels etwa V-förmige Schöpfrippen, deren Spitzen zum Trommelinneren zeigen, angebracht sind, die mantelseitig mit Öffnungen von mindestens dem 5-fachen Querschnitt eines Loches der Trommellochung versehen sind.The invention further relates to a washing machine with a tub in which a drum is rotatably mounted about a horizontal or inclined axis and driven by a motor, wherein the drum comprises an end wall and a perforated jacket, wherein on the inside of the shell about V - shaped scoop ribs, the tips of which point to the drum interior, are mounted, which are provided on the shell side with openings of at least 5 times the cross section of a hole in the drum hole.

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 lift the water from the lower portion of the tub upwards and distribute from there over the laundry.

Aus der EP 0 935 687 B1 ist eine derartige Trommel für eine Waschmaschine bekannt. Damit die Wäsche beim Waschen geschont wird, sind wenige Löcher im Trommelmantel mit einem kleineren Durchmesser angeordnet, hierbei im Bereich von 2 mm Durchmesser. Bei kleinen Löchern dringen beim Waschen oder Schleudern nicht so viele Fasern dort ein, wodurch Noppenbildung oder Faserablösungen vermieden werden. Hierbei kann es jedoch vorkommen, dass grobe Schmutzteilchen nach dem Abpumpen in der Trommel verbleiben, da sie nicht durch die recht kleinen Löcher passen.From the EP 0 935 687 B1 Such a drum for a washing machine is known. In order to protect the laundry during washing, a few holes are arranged in the drum shell with a smaller diameter, here in the range of 2 mm in diameter. In the case of small holes, not so many fibers penetrate there during washing or spinning, as a result of which pilling or fiber detachment is avoided. In this case, however, it may happen that coarse dirt particles remain in the drum after pumping, as they do not fit through the rather small holes.

Aus der DE 199 52 990 A1 ist eine Trommel bekannt, die im Mantel in Umfangsrichtung umlaufende Sicken besitzt, die im Bereich unter den Schöpfrippen mit Löchern versehen sind. Die Schöpfrippen sind auf den Erhebungen befestigt, so dass die Waschflüssigkeit in den Sicken unterhalb der Schöpfrippen zu den Löchern gelangt. Auf diese Weise wird verhindert, dass die Wäschestücke mit Löchern in Kontakt kommen. Hierbei ist es nachteilig, dass der Abstand der Laugenbehälterwand zu den Sicken eingehalten werden muss, so dass sich aufgrund der Erhebungen zwischen den Sicken ein kleineres Volumen für die Trommel ergibt. Ferner ist es nachteilig, dass sich die Trommel wegen des wellenförmigen Mantels beim Schleudern zusammenziehen kann, wodurch sich der Innenraum etwas verkleinern kann.From the DE 199 52 990 A1 For example, a drum is known which has peripherally extending beads in the shell which are provided with holes in the area under the scooping ribs. The scooping ribs are mounted on the protrusions so that the scrubbing liquid reaches the holes in the crimps below the scooping ribs. In this way, the laundry items are prevented from coming into contact with holes. It is disadvantageous that the distance of the tub wall to the beads must be complied with, so that due to the elevations between the beads gives a smaller volume for the drum. Further, it is disadvantageous that the drum can contract due to the wave-shaped shell during spin, whereby the interior can be slightly smaller.

Aus der DE 37 12 118 A1 ist eine Trommel bekannt, die Schöpfrippen mit einer guten Schöpfwirkung besitzt. Um möglichst viel Wasser bei noch kleinen Wasserständen zu schöpfen, besitzen die Schöpfrippen nahe des Trommelmantels große Löcher, mit denen Wasser in den Raum innerhalb der Schöpfrippe aufgenommen wird. Hierbei wird das in der Trommel befindliche Wasser in die Schöpfrippe gespült, wobei im Trommelmantel innerhalb der Schöpfrippe keine Öffnungen für einen Flüssigkeitsaustausch zwischen Trommel und Laugenbehälter vorgesehen sind.From the DE 37 12 118 A1 For example, a drum is known which has scooping ribs with a good scooping action. To scoop as much water as possible while the water levels are still small, the scoop ribs close to the drum shell have large holes that allow water to be drawn into the space inside the scoop rib. In this case, the water in the drum is rinsed into the scoop rib, wherein in the drum shell within the scoop rib no openings for a fluid exchange between the drum and the tub are provided.

Aus der DE 102 60 023 B3 ist eine Trommel für eine Waschmaschine bekannt, die im Inneren etwa v-förmige Schöpfrippen umfasst. Mantelseitig sind in den Bereichen der Rippe Öffnungen angeordnet, damit das zu schöpfende Wasser in die Rippe gelangen kann. Aus der DE 200 23 048 U1 ist eine Trommel bekannt, die schräg zur Drehrichtung der Trommel angebrachte Schöpfrippen besitzt. Auch hier befinden sich mantelseitig Öffnungen, um in die Rippen das zu schöpfende Wasser einzulassen.From the DE 102 60 023 B3 For example, a drum for a washing machine is known, which comprises inside approximately V-shaped scoop ribs. On the shell side openings are arranged in the areas of the rib, so that the water to be extracted can get into the rib. From the DE 200 23 048 U1 a drum is known which has obliquely to the direction of rotation of the drum mounted scoop ribs. Here, too, there are openings on the shell side to admit the water to be extracted into the ribs.

Der Erfindung liegt deshalb die Aufgabe zu Grunde, die Schmutzabführung aus einer Trommel in einer Waschmaschine zu verbessern.The invention is therefore based on the object to improve the removal of dirt from a drum in a washing machine.

Die Aufgabe wird durch eine Trommel mit den Merkmalen des Anspruchs 1 und einer Waschmaschine mit den Merkmalen des Anspruchs 11 gelöst. Vorteilhafte Ausführungen ergeben sich aus den abhängigen Ansprüchen 2 bis 10.The object is achieved by a drum having the features of claim 1 and a washing machine having the features of claim 11. Advantageous embodiments emerge from the dependent claims 2 to 10.

Der wesentliche Vorteil der erfindungsgemäßen Trommel ist, dass auf einfache Weise die Schmutzabführung von groben Schmutzteilchen oder Flusen aus der Trommel erreicht 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 the dirt removal of coarse dirt particles or lint from the drum is achieved in a simple manner. Furthermore, the conservation of the laundry items is maintained, so that premature wear or damage can be avoided.

Die erfindungsgemäße Trommel umfasst an ihrem Trommelmantel Schöpfrippen, die an ihrem zum Mantel weisenden Rand jeweils eine Ausbuchtung besitzen, die eine Öffnung zum Inneren der Schöpfrippe bildet, die durch den Rand der Ausbuchtung und der Innenseite des Trommel-Mantels umgeben ist. Hierbei können Schmutzteilchen an der Innenseite des Trommelmantels entlanggleiten, bis sie die vergrößerte Öffnungen in der Schöpfrippe erreichen. Die Schmutzteilchen dringen dann nahezu ungehindert durch diese Öffnung in das Innere der Schöpfrippe und von dort aus durch die ebenfalls große mantelseitige Öffnung aus der Trommel heraus in den Laugenbehälter.The drum according to the invention comprises on its drum shell scoop ribs, each having a bulge at its mantle-facing edge, which forms an opening to the interior of the scoop rib, which is surrounded by the edge of the bulge and the inside of the drum shell. This dirt particles can slide along the inside of the drum shell until they reach the enlarged openings in the scoop rib. The dirt then penetrate almost unhindered through this opening into the interior of the scoop rib and of out there through the likewise large shell-side opening out of the drum out into the tub.

Durch die Anordnung von wenigen, kleinen Löchern im Trommelmantel wird eine gute Wäscheschonung beim Drehen der Trommel in der Wasch- oder Schleuderphase erreicht. Die größeren Löcher in der Schöpfrippe nah am Trommelmantel liegen in einem Winkel zum Mantel und kommen deshalb mit der Wäsche nicht so stark in Berührung. Die Wäsche fällt beim Waschen radial zum Trommelmantel oder sie wird beim Schleudern gegen den Trommelmantel gepresst, und nicht so stark gegen die Flanken der Schöpfrippen. Dadurch können die Wäschestücke auch nicht so stark in die größeren Löcher eindringen, so dass sie nicht durch Noppenbildung oder Fadenzieher beschädigt wird. Hierbei ist es zweckmäßig, dass die Löcher für die Trommellochung einen Durchmesser von maximal 2,5 mm aufweisen. Bei diesen sogenannten kleinen Löchern können die Fasern nicht eindringen. Grobe Schmutzteilchen, die nicht durch die Löcher im Trommelmantel passen, können über die Öffnungen in der Schöpfrippe ausgeschwemmt werden.The arrangement of a few small holes in the drum shell a good laundry is achieved when turning the drum in the washing or spin phase. The larger holes in the scoop rib close to the drum shell lie at an angle to the jacket and therefore do not come into so much contact with the laundry. The laundry falls during washing radially to the drum shell or it is pressed during spin against the drum shell, and not so strong against the flanks of the scoop ribs. This allows the laundry items Also, do not penetrate so much into the larger holes, so that it is not damaged by pimples or thread-pulling. It is expedient that the holes for the drum hole have a maximum diameter of 2.5 mm. In these so-called small holes, the fibers can not penetrate. Coarse dirt particles that do not fit through the holes in the drum shell can be flushed out through the openings in the pouring lip.

In einer vorteilhaften Weiterbildung sind die mantelseitigen Öffnungen durch C-förmiges Ausschneiden des Trommelmantels und Abkanten zum Inneren der Trommel gebildet.In an advantageous development, the shell-side openings are formed by C-shaped cutting of the drum shell and folding to the interior of the drum.

In einer vorteilhaften Weiterbildung ist ein durch das Abkanten zum Inneren der Schöpfrippe gebildeter Steg an der Seite der mantelseitigen Öffnung angeordnet, die von der Öffnung in der Schöpfrippe entfernt ist. Auf diese Weise können die verschmutzte Waschflüssigkeit und die darin enthaltenen Schmutzteilchen sicher aus der Trommel durch die Öffnung in der Schöpfrippe hindurch über die mantelseitige Öffnung herausgeleitet werden. Die Trommel dreht sich während des Ablassens der Waschflüssigkeit in die Richtung, die das Herausströmen begünstigt.In an advantageous development, a web formed by the folding to the interior of the scoop rib is arranged on the side of the shell-side opening which is remote from the opening in the scoop rib. In this way, the polluted washing liquid and the dirt particles contained therein can be safely led out of the drum through the opening in the scooping rib via the shell-side opening. The drum rotates during the discharge of the washing liquid in the direction that promotes the outflow.

In einer weiteren Weiterbildung ist der Steg schräg abgekantet. Der Steg lenkt die Waschflüssigkeit durch die mantelseitige Öffnung in den Laugenbehälter, wobei das Herausströmen verbessert wird.In a further development, the web is bent at an angle. The web directs the washing liquid through the shell-side opening in the tub, wherein the outflow is improved.

In einer vorteilhaften Ausführung ist die Öffnung in der Schöpfrippe so bemessen, dass sie mindestens dem 4-fachen Querschnitt der Trommellochung entspricht. Mit dieser Größe wird eine zuverlässige Ausspülung von Schmutzteilchen und Flusen erreicht.In an advantageous embodiment, the opening in the scoop rib is dimensioned so that it corresponds at least to the quadruple cross-section of the drum hole. With this size, a reliable rinsing of dirt and lint is achieved.

In einer zweckmäßigen Weiterbildung entspricht die Öffnung in der Schöpfrippe dem 4-fachen bis 10-fachen Querschnitt der Trommellochung. Mit der Begrenzung auf den 10-fachen Querschnitt der Trommellochung wird verhindert, dass doch noch Wäschestücke zu weit in diese Öffnungen eindringen können.In an expedient development, the opening in the pouring rib corresponds to 4 to 10 times the cross section of the drum hole. The limitation to the 10-fold cross-section of the drum hole prevents that items of laundry can penetrate too far into these openings.

In einer weiteren vorteilhaften Ausführung hat die V-förmige Schöpfrippe zum Mantel hin einen Verlauf, der einen im wesentlichen rechtwinkligen Übergang zum Trommelmantel bereitstellt, wobei sich die Öffnungen vom Trommelmantel ausgehend in diesem Übergangsbereich erstrecken. Dadurch wird die Wäsche beim Schleudern an der Öffnung entlang gegen den Trommelmantel gepresst, und nicht so stark gegen die Bereiche der Schöpfrippe bzw. die Flanken, in denen die Öffnungen zur Schmutzabführung angeordnet sind, gedrückt.In a further advantageous embodiment, the V-shaped scoop rib has a course towards the jacket, which provides a substantially rectangular transition to the drum shell, wherein the openings extend from the drum shell in this transition region. As a result, the laundry is pressed against the drum shell during spin-drying along the opening, and is not pressed so strongly against the regions of the scoop rib or the flanks in which the dirt-removal openings are arranged.

Für die Bereitstellung der Schöpfrippe ist es zweckmäßig, dass sie aus einem V-förmig gewinkeltem Blech gebildet ist, welches an den Enden der Flanken des Vs jeweils eine nach innen gerichtete Abkantung umfasst, und dass die Ausbuchtungen an der Seite des Trommelmantels jeweils durch eine ausgeformte Sicke an zumindest einer der nach innen gerichteten Abkantungen gebildet ist. Die Abkantung dient zur Befestigung, da sie mit Befestigungsmitteln wie Laschen oder Nieten an dem Trommelmantel befestigt werden kann. Die Schöpfrippe kann auch an dem Trommelmantel angeschweißt werden, wobei die Abkantung für die Aufnahme von Schweißpunkten dient. Die Abkantung in der die Öffnung bildenden Sicke hat den Vorteil, dass die Öffnung einen abgerundeten Übergang zur Flanke der Schöpfrippe besitzt.For the provision of the scoop rib, it is expedient that it is formed from a V-shaped angled sheet, which at the ends of the flanks of the Vs one after each includes inwardly directed bevel, and that the bulges on the side of the drum shell is formed in each case by a molded bead on at least one of the inwardly directed bends. The fold is used for attachment, since it can be fastened with fasteners such as tabs or rivets on the drum shell. The scoop rib may also be welded to the drum shell, with the fold serving to receive welds. The fold in the opening forming the bead has the advantage that the opening has a rounded transition to the edge of the scoop rib.

In einer weiteren vorteilhaften Ausführung ist die durch die Ausbuchtung gebildete Öffnung in der Schöpfrippe länglich ausgebildet, wobei sich deren Längsseite entlang der Innenseite des Mantels erstreckt. Hierdurch können Schlitze mit großen Querschnitten bereitgestellt werden, in die die Wäschestücke nicht eindringen können. Hierbei ist es vorteilhaft, dass die Längsseite mindestens das 3-fache der kurzen Seite der länglichen Öffnung beträgt.In a further advantageous embodiment, the opening formed by the bulge in the scoop rib is elongated, with its longitudinal side extending along the inside of the shell. As a result, slots can be provided with large cross-sections, in which the laundry items can not penetrate. It is advantageous that the longitudinal side is at least 3 times the short side of the elongated opening.

Bei der erfindungsgemäßen Waschmaschine besitzen die Schöpfrippen an ihrem zum Trommelmantel weisenden Rand jeweils zumindest eine Ausbuchtung, die jeweils eine Öffnung zum Inneren der Schöpfrippe bildet, die durch den Rand der Ausbuchtung und der Innenseite des Mantels umgeben ist, so dass beim Drehen der Trommel durch diese Öffnungen Schmutzteile im Bereich der Innenseite des Trommelmantels durch die Schöpfrippe hindurch aus der Trommel entfernbar sind.In the washing machine according to the invention, the scoop ribs have at their respective edge facing the drum shell at least one bulge, each forming an opening to the interior of the scoop rib, which is surrounded by the edge of the bulge and the inside of the shell, so that upon rotation of the drum through this Openings of debris in the region of the inside of the drum shell through the scoop rib are removable from the drum.

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;
  • Fig. 3: einen Bereich der Trommel mit Schöpfrippe in einer Detailansicht und
  • Fig. 4: eine skizzierte Schnittdarstellung des Trommelbereichs mit Schöpfrippe.
An embodiment of the invention is shown purely schematically in the drawings and will be described in more detail below. Show it
  • Fig. 1 : a washing machine in a sketched sectional view;
  • Fig. 2 : the drum in a perspective view;
  • Fig. 3 a section of the drum with scoop rib in a detail view and
  • Fig. 4 : A sketched sectional view of the drum area with scoop rib.

In Fig. 1 ist in rein schematischer Darstellung eine Waschmaschine 1, mit einem Laugenbehälter 2 dargestellt. Die Positions- und Richtungsangaben beziehen sich auf die betriebsgemäße Aufstellposition der Waschmaschine 1. Innerhalb des Laugenbehälters 2 ist eine über eine horizontale oder geneigte Achse 27 drehbar gelagerte und über einen elektrischen Motor 13 angetriebene Trommel 3 angeordnet, die die im Laugenbehälter 2 bzw. in der Trommel 3 befindlichen Wäschestücke 8 bewegt. Die Trommel 3 ist im vorliegenden Ausführungsbeispiel aus Edelstahl hergestellt und mit einer Vielzahl an Löchern 21 (Fig. 2) für die Durchflutung versehen. Das Gehäuse 4 hat eine Beladungsöffnung 9, über die das Innere der Trommel 3 durch die Dichtungsmanschette 6 hindurch erreichbar ist. Die Beladungsöffnung 9 ist mittels der Tür 5 verschließbar. Im unteren Bereich des Laugenbehälters 2 ist die Waschflüssigkeit 7, welche zum Reinigen oder Behandeln der Wäsche 8 benötigt wird. Zur Erwärmung oder zum Erhitzen der Flüssigkeit 7 ist im unteren Bereich des Laugenbehälters 2 ein Heizkörper (nicht dargestellt) angeordnet. Im oberen Bereich der Maschine 1 ist ein Einlassventil 15 skizziert, welches das Einlaufen des Wassers aus dem Versorgungsnetz steuert. Über den Einspülkasten 11 wird das Wasser über das Verbindungsrohr 14 in den Laugenbehälter 2 geleitet, wobei im Einspülkasten 11 eingegebenes Waschmittel mit in den Laugenbehälter 2 gespült wird. Unterhalb des Laugenbehälters 2 ist eine Ablaufeinrichtung 12 angeordnet, die die verbrauchte Waschflüssigkeit oder das Spülwasser 7 aus dem Laugenbehälter 2 zur Ablaufleitung 16 herausführt, die in der Regel in einen Abwasserkanal mündet. Die Steuereinrichtung 17 steuert den Wassereinlauf 15, die Aktivität der Ablaufeinrichtung 12 und den Antriebsmotor 13, der über das Leistungsteil oder einen Frequenzumrichter 18 bestromt wird.In Fig. 1 is a purely schematic representation of a washing machine 1, shown with a tub 2. The position and direction information refer to the operational installation position of the washing machine 1. Within the tub 2 is a rotatably mounted on a horizontal or inclined axis 27 and driven by an electric motor 13 Drum 3 arranged in the tub 2 and in the Drum 3 located laundry items 8 moves. The drum 3 is made in the present embodiment of stainless steel and with a plurality of holes 21 (FIG. Fig. 2 ) provided 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. In the lower region of the tub 2, the washing liquid 7, which is needed for cleaning or treating the laundry 8. For heating or for Heating the liquid 7, a radiator (not shown) is arranged in the lower region of the tub 2. In the upper part of the machine 1, an inlet valve 15 is sketched, which controls the entry of the water from the supply network. About the Einspülkasten 11, the water is passed through the connecting pipe 14 into the tub 2, wherein in the dispenser 11 entered detergent is flushed into the tub 2. Below 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.

In Fig. 2 ist die Trommel 3 dargestellt, die aus einem Mantel 19 und zwei gegenüberliegenden Stirnwänden 20 besteht. Auf der Innenseite 19a des Mantels 19 sind über den Umfang verteilt mehrere Schöpfrippen 10, in diesem Beispiel drei, angebracht. Die Schöpfrippen 10 sind im Profil V-förmig geformt und besitzen mantelseitig Öffnungen 22, die im Querschnitt um ein vielfaches größer sind, als die Löcher 21 für die Trommellochung. In diesem Beispiel haben die Öffnungen 22 mindestens einen 5-fachen Querschnitt, wie die Löcher 21 für die Trommellochung, die einen Durchmesser von etwa 2 mm haben. Auch der 10- oder 20-fache Querschnitt für die mantelseitigen Öffnungen 22 ist möglich.In Fig. 2 the drum 3 is shown, which consists of a jacket 19 and two opposite end walls 20. On the inside 19a of the jacket 19 are distributed over the circumference several scooping ribs 10, in this example, three, attached. The scoop ribs 10 are formed in profile V-shaped and have shell-side openings 22 which are larger in cross-section by a multiple, than the holes 21 for the drum hole. In this example, the openings 22 have at least a 5-fold cross-section, such as the holes 21 for the drum hole, which have a diameter of about 2 mm. Also, the 10- or 20-fold cross-section for the shell-side openings 22 is possible.

In Fig. 3 ist in der detaillierten Ansicht die Schöpfrippe 10 mit den Ausbuchtungen 23 zur Bildung von vergrößerten Öffnungen 24 für die verbesserte Schmutzabführung aufgezeigt. Die Ausbuchtungen 23 befinden sich am mantelseitigen Rand der Schöpfrippe 10 und bilden mit der Innenseite 19a des Mantels 19 die Umrandung für die jeweilige Öffnung 24. Bei Drehung der Trommel 3 in Pfeilrichtung U werden die Flüssigkeit und die darin schwebenden Schmutzteilchen in die Öffnungen 24 bewegt, wie mit dem Pfeil W skizziert ist. Die Öffnungen 24 sind jeweils länglich ausgeführt, wobei die Länge der Längsseite mindestens das 3-fache der Länge der kurzen Seite beträgt.In Fig. 3 In the detailed view, the scoop rib 10 with the protrusions 23 for forming enlarged openings 24 for improved dirt removal is shown. The bulges 23 are located on the shell-side edge of the scoop rib 10 and form with the inner side 19 a of the jacket 19, the border for the respective opening 24. Upon rotation of the drum 3 in the direction of arrow U, the liquid and the debris floating therein are moved into the openings 24, as sketched by the arrow W. The openings 24 are each made elongated, wherein the length of the longitudinal side is at least 3 times the length of the short side.

Anhand der skizzierten Schnittdarstellung ist die Anordnung der Öffnungen 22 innerhalb einer Schöpfrippe 10 verdeutlicht. Die Schöpfrippe 10 ist an der Innenseite 19a des Trommelmantels 19 befestigt. Am mantelseitigen Rand ist die Ausbuchtung 23 angeordnet, womit die Öffnung 24 bereitgestellt wird. Eine nach innen gerichtete Abkantung 26 um den Rand der Ausbuchtung 23 bietet einen abgerundeten Übergang zum Trommelinneren, in dem sich die Wäsche 8 (Fig. 1) befindet. Innerhalb der Schöpfrippe 10 sind im Trommelmantel 19 Öffnungen 22 angeordnet, die eine Ableitung der Waschflüssigkeit aus der Trommel 3 bereitstellen. Um die Schmutzabführung zu verbessern, ist an der jeweiligen Öffnung 22 an einer Seite eine Fahne 25 angebracht, die zweckmäßigerweise durch C-förmiges Ausschneiden des Trommelmantels 19 und anschließendes Abkanten zum Trommelinneren bzw. zum Inneren der Schöpfrippe 10 gebildet wird. Wie mit dem Pfeil W angedeutet, wird die abzulassende Waschflüssigkeit 7 (Fig. 1) durch die Öffnung 24 in der Schöpfrippe 10 und anschließend durch die Öffnung 22 im Trommelmantel 19 in den Laugenbehälter 2 geleitet. Wenn die Trommel 3 in Pfeilrichtung U gedreht wird, kann das Herausleiten der Waschflüssigkeit und damit die Schmutzabführung nochmals verbessert werden. Durch die schräge Ausrichtung der Fahne 25, so dass die Fahne 25 die Öffnung 22 teilweise überdeckt, kann die Strömung der Waschflüssigkeit 7 für das Abführen der Schmutzteilchen verbessert werden.Based on the sketched sectional view, the arrangement of the openings 22 is illustrated within a scoop rib 10. The scooping rib 10 is attached to the inside 19a of the drum shell 19. On the shell-side edge of the bulge 23 is arranged, whereby the opening 24 is provided. An inwardly directed fold 26 around the edge of the bulge 23 provides a rounded transition to the interior of the drum, in which the laundry 8 (FIG. Fig. 1 ) is located. Within the scoop rib 10 openings 22 are arranged in the drum shell 19, which provide a discharge of the washing liquid from the drum 3. To improve the removal of dirt, a flag 25 is attached to the respective opening 22 on one side, which expediently by C-shaped cutting of the drum shell 19 and subsequent folding to the drum interior or to the interior of the scoop rib 10 is formed. As indicated by the arrow W, the washing liquid to be discharged 7 ( Fig. 1 ) through the opening 24 in the scoop rib 10 and then passed through the opening 22 in the drum shell 19 in the tub 2. If the drum 3 is rotated in the direction of arrow U, the discharge of the washing liquid and thus the dirt removal can be further improved. Due to the oblique orientation of the lug 25, so that the lug 25 partially covers the opening 22, the flow of the washing liquid 7 for the removal of the dirt particles can be improved.

Beim Waschen kann die Waschflüssigkeit 7 durch die Öffnungen 22 in die Schöpfrippe 10 gelangen und mit dem Drehen der Trommel 3 angehoben werden, um von einer erhöhten Position die Flüssigkeit auf die Wäsche herunterrieseln zu lassen.During washing, the washing liquid 7 can pass through the openings 22 in the scooping rib 10 and be raised with the rotation of the drum 3 to trickle down from an elevated position, the liquid on the laundry.

Die Waschmaschine 1 mit der erfindungsgemäßen Trommel 3 ist besonders gut für die Reinigung und Wiederaufbereitung von Wischtüchern oder Mopps geeignet, da hierbei besonders viel Schmutz und Flusen anfallen. Auch für die Behandlung von Tiertextilien, wie Pferdedecken oder Hundekissen ist diese Waschmaschine 1 bzw. Trommel 3 besonders gut geeignet, da die anfallenden Haare zumindest nahezu vollständig aus der Trommel 3 herausgespült werden.The washing machine 1 with the drum 3 according to the invention is particularly well suited for the cleaning and reprocessing of wipes or mops, since this particular amount of dirt and lint incurred. Also for the treatment of animal textiles, such as horse rugs or dog cushions, this washing machine 1 or drum 3 is particularly well suited because the resulting hair is at least almost completely rinsed out of the drum 3.

Claims (11)

  1. Drum (3) for a washing machine (1) comprising a suds container (2), in which the drum (3) is rotatably mounted via a horizontal or inclined shaft (27), comprising an end wall (20) and a casing (19) which is provided with holes (21), substantially V-shaped scoop ribs (10), the points of which point towards the drum interior, being fitted on the inside (19a) of the casing, which scoop ribs are provided on the casing side with openings (22) which are at least five times the size in cross-section of a hole (21) in the drum casing (19), characterised in that the scoop ribs (10) each have, on the side thereof facing the drum casing (19), an indentation (23), which forms an opening (24) to the inside of the scoop rib (10), which is enclosed by the side of the indentation (23) and the inside (19a) of the drum casing (19).
  2. Drum (3) according to claim 1, characterised in that the holes (21) for the drum perforation have a diameter of at most 2.5 mm.
  3. Drum (3) according to claim 1, characterised in that the casing-side openings (22) inside the scoop rib (10) are formed by making a C-shaped cut-out in the drum casing (19) and making a bevel towards the inside of the drum (3).
  4. Drum according to claim 3, characterised in that a lug (25) formed by the bevel towards the inside of the scoop rib (10) is arranged on the side of the casing-side opening (22), which is remote from the opening (24) in the scoop rib (10).
  5. Drum (3) according to claim 4, characterised in that the lug (25) is arranged obliquely to the casing-side opening (22).
  6. Drum (3) according to claim 1, characterised in that the opening (24) in the scoop rib (10) corresponds to at least four times the size in cross-section of a hole (21) for the drum perforation.
  7. Drum (3) according to claim 6, characterised in that the opening (24) in the scoop rib (10) corresponds to four to ten times the size in cross-section of a hole (21) for the drum perforation.
  8. Drum (3) according to claim 1, characterised in that the V-shaped scoop rib (10) has a shape towards the drum casing (19) which provides a substantially right-angled transition to the drum casing (19), the openings (24) extending in this transition region starting from the inside (19a) of the drum casing (19).
  9. Drum (3) according to claim 1, characterised in that the scoop rib (10) is formed from a metal sheet which is bent into a V-shape, which sheet comprises an inward bevel (26) at each end, and in that the indentations (23) are each formed by a shaped bead on at least one of the inward bevels (26).
  10. Drum (3) according to any of claims 1 to 9, characterised in that the opening (24), formed by the indentation (23), in the scoop rib (10) is formed in an elongate manner, the longitudinal side thereof extending along the inside (19a) of the drum casing (19).
  11. Washing machine (1) comprising a suds container (2), in which a drum (3) is rotatably mounted via a horizontal or inclined shaft (27) and is driven by a motor (13), the drum (3) comprising an end wall (20) and a casing (19) which is provided with holes (21), substantially V-shaped scoop ribs (10), the points of which point towards the drum interior, being fitted on the inside (19a) of the casing (19), which scoop ribs are provided on the casing side with openings (22) which are at least five times the size in cross-section of a hole (21) of the drum perforation, characterised in that the scoop ribs (10) each have, on the side thereof facing the drum casing (19), an indentation (23), which forms an opening (24) to the inside of the scoop rib, which is enclosed by the side of the indentation (23) and the inside (19a) of the drum casing (19), such that when the drum (3) rotates, dirt particles in the region of the inside (19a) of the drum casing (19) can be removed from the drum (3) through the scoop rib (10) by said openings (24).
EP08012668.3A 2007-08-02 2008-07-14 Barrel for a washing machine and washing machine Active EP2022882B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08012668T PL2022882T3 (en) 2007-08-02 2008-07-14 Barrel for a washing machine and washing machine

Applications Claiming Priority (1)

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DE102007036619A DE102007036619B3 (en) 2007-08-02 2007-08-02 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

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EP2022882A2 EP2022882A2 (en) 2009-02-11
EP2022882A3 EP2022882A3 (en) 2011-10-19
EP2022882B1 true EP2022882B1 (en) 2013-11-27

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EP (1) EP2022882B1 (en)
DE (1) DE102007036619B3 (en)
DK (1) DK2022882T3 (en)
ES (1) ES2438984T3 (en)
PL (1) PL2022882T3 (en)

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Publication number Priority date Publication date Assignee Title
DE102015101456A1 (en) 2015-02-02 2016-08-04 Miele & Cie. Kg Drum for a washing machine and washing machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2376969T3 (en) * 2009-10-06 2012-03-21 Miele & Cie. Kg Drum for a washing machine
ES2534788T3 (en) 2012-08-20 2015-04-28 Miele & Cie. Kg Drum for a washing machine
CN107964756A (en) * 2016-10-19 2018-04-27 廖鸿涵 Washing machine Novel rotary drum
DE102018112923A1 (en) 2018-05-30 2019-12-05 Miele & Cie. Kg Washing drum and washing machine
DE102018112931A1 (en) 2018-05-30 2019-12-05 Miele & Cie. Kg Laundry drum and washing machine
DE102020108694A1 (en) * 2020-03-30 2021-09-30 Miele & Cie. Kg Method for operating a washing machine and washing machine

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
DE3712118A1 (en) * 1986-05-06 1987-11-12 Bosch Siemens Hausgeraete DRUM WASHING MACHINE
EP0935687B1 (en) * 1996-11-02 2001-06-13 Miele & Cie. GmbH & Co. Cylinder washing machine
DE19925917A1 (en) * 1999-06-07 2000-12-14 Bsh Bosch Siemens Hausgeraete Front loading washing machine with a rotating drum
DE19952990A1 (en) * 1999-11-04 2001-05-10 Ludger Hellkuhl Rotary drum washing machine has washing load prevented from direct contact with washing/rinsing apertures in mantle surface of washing drum via hollow rails fitted over apertures
DE10260023B3 (en) * 2002-12-19 2004-01-22 Miele & Cie. Kg Washing machine drum with cupping ribs and method for producing the jacket of such a washing machine drum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015101456A1 (en) 2015-02-02 2016-08-04 Miele & Cie. Kg Drum for a washing machine and washing machine

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ES2438984T3 (en) 2014-01-21
DE102007036619B3 (en) 2008-09-18
EP2022882A2 (en) 2009-02-11
DK2022882T3 (en) 2014-01-27
PL2022882T3 (en) 2014-04-30
EP2022882A3 (en) 2011-10-19

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