EP2474659B1 - Drum with curved structure for a washing machine - Google Patents
Drum with curved structure for a washing machine Download PDFInfo
- Publication number
- EP2474659B1 EP2474659B1 EP11401007A EP11401007A EP2474659B1 EP 2474659 B1 EP2474659 B1 EP 2474659B1 EP 11401007 A EP11401007 A EP 11401007A EP 11401007 A EP11401007 A EP 11401007A EP 2474659 B1 EP2474659 B1 EP 2474659B1
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- EP
- European Patent Office
- Prior art keywords
- drum
- grooves
- star point
- segments
- webs
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- 238000005406 washing Methods 0.000 title claims description 22
- 239000007788 liquid Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 230000000694 effects Effects 0.000 description 6
- 238000004049 embossing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
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 an end wall, wherein the jacket has a structure of directed towards the drum interior vaults, which consists of individual curved segments comprises, wherein between each adjacent segments channel-like webs are formed, in which holes for the passage of washing liquid are arranged.
- 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.
- Such a drum for a washing machine is known. So that the laundry is spared during washing, a few holes in the drum shell are arranged with a smaller diameter, here about 2 mm. 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.
- the known drum has a structure of inwardly directed bulges in order to achieve a good discharge of the liquid from the drum. Furthermore, a good protection of the laundry is achieved because it can slide along the vaults very smoothly along.
- the bulges are in this case uniformly structured, so that the laundry movement is caused by driving ribs which are arranged distributed on the inside of the drum shell over the circumference.
- driving ribs which are arranged distributed on the inside of the drum shell over the circumference.
- the invention is therefore based on the object to provide a drum with buckles for a gentle laundry treatment, in which the mechanical action and the drainage are improved.
- the main advantage of the drum according to the invention is that an improved movement of the laundry within the drum is achieved when it is arranged approximately horizontally or inclined and rotated at a normal speed for the washing phase, for example 20 to 70 rpm.
- the curved areas or at least the crests of the vaults offer by the additional embossing an increased frictional resistance for the clothes sliding along it, which are then taken with the drum shell.
- the conservation of the laundry items is maintained, so that premature wear or damage can be avoided.
- the dewatering or liquor exchange between bound liquor and free liquor, which is predominantly in the tub outside the drum is improved or accelerated.
- additional grooves are embossed in the arched segments in each curved area, which extend from a star point in the central region of the curvature starting in each case to the segment edge and open into one of the channel-like webs.
- the grooves impressed on the bulges serve as drainage channels, through which the water or the washing liquid pressed out of the laundry is directed to the throughflow holes.
- the additional embossing also ensures further stabilization of the drum shell, so that it can be made of thinner sheet metal, compared to a conventional drum shell. Overall, a good drainage is achieved, despite a small number of flood holes, in which case the diameter of the holes in the range of 1.8 to 3 mm, preferably 2 to 2.5 mm.
- the star point is higher in the plane of the inner surface of the drum shell, that is, further toward the interior of the drum or closer to the drum axis, than the channels or the channel-like webs, relative to the plane of the shell.
- the grooves on the dome or on the curvature are guided so that they open at a hole in the channel-like web. This provides a short and direct route for water drainage.
- the grooves have a continuous slope to the channel-like web, relative to the plane of the inside of the shell, wherein the gradient is the direction from the apex portion of the curvature, which is closer to the drum inside, is considered to the drum outer.
- the channel-like webs disposed between the arched segments are curved relative to the plane of the shell, such that they have a slope to the holes.
- a derivative of the water or the washing liquid from the webs to the holes between the curved segments is accelerated or improved.
- star point in the plane of the inner surface of the drum shell is higher, ie further to the drum interior, as the channels or the channel-like webs, based on the plane of the shell.
- the grooves are formed and the grooves are at an angle to the plane of the shell, whereby they have a steady slope to the respective channel-like web. Due to the gradient to the outside of the drum, the discharge of water or washing liquid is improved or accelerated.
- the grooves are curved to the plane of the shell and have a steady slope to the respective channel-like web. Due to the curvature, the channel can follow the curvature course of the channel and be provided with a substantially constant depth.
- each individual domed segment includes a plurality of domed sub-segments surrounded by gutters and a channel.
- the curved portions are at least partially higher than the star point, based on the plane of the inner surface of the drum shell. This is at least partially prevents the laundry items settle in the gutters and block the drainage effect.
- another hole is arranged in each star point. This accelerates the discharge and / or fleet exchange.
- the star point is free of holes. This has the effect that the laundry items are better protected, as contacts to an additional hole edge are avoided.
- additional channels are stamped in the arched segments in the respective curved area, extending from a star point in the central region of the curvature extending in each case to the edge of the segment and open into one of the channel-like webs, wherein the star point and the grooves on the inner surface of the drum shell lie in the same plane as the channels, and further in the neutral point another hole is arranged.
- the segments are formed as polygons and run the grooves so that they open into vertices of the polygons, the holes are arranged at the vertices of the polygons.
- This can be provided in a simple manner, the entire jacket area with a buckle structure, which has an advantageous effect on the stability of the shell.
- the segments are formed as hexagons, each comprising three grooves extending from the star point in three corners of the segment. This results in a structure that resembles or resembles a plurality of adjacent diamonds.
- the segments are also formed as hexagons, wherein the hexagons in this embodiment each comprise six grooves extending from the star point in the six corners of the segment. This results in a facet-like structure of hexagons, each consisting of six triangles whose tips meet in the common star point.
- the channels and the gutters with a width in the range of 0.5 to 3 mm.
- a good and targeted removal of the washing liquid or water is achieved and on the other hand prevents the laundry completely penetrate and clog in all channels or grooves during spin.
- the drainage effect is thus maintained over a long period of spinning, whereby the effect of the drainage is improved.
- 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 operational installation position of the washing machine 1.
- Within the tub 2 is an over a horizontally or inclined axis 27 rotatably mounted and driven by an electric motor 13
- Drum 3 is arranged, which moves the laundry items 8 located in the tub 2 and in the drum 3.
- 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 10 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.
- Fig. 2 the drum 3 is shown, which consists of a jacket 19 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 19a of the shell 19 are distributed over the circumference several scooping ribs 21, in this example, three, attached.
- the scoop ribs 21 are formed in profile V-shaped or parabolic.
- the drum 3 is perforated with the holes 25 (FIG. Fig. 3 ) are disposed between the domed segments 22 and have a diameter of about 1.8 to 2.5 mm, preferably 2 mm.
- the drum shell 19 is here divided into three sections, which are divided by the scoop ribs 21. Here, a corresponding structure of the segments 22 is formed in each section.
- the segments 22 are angular, in this example 6-square executed with their contours 22a (FIG. Fig. 4a ) lie against each other and form a honeycomb arrangement.
- a hexagonal, equilateral form of the curved areas results in a key width in the range between 38 to 55 mm.
- the height of the bulges of the segments 22 and the sub-segments 27, starting from the channel 23 to the apex or the tip is expediently about 0.1 to 2 mm.
- the jacket 19 is shown as a settlement.
- the segments 22 are curved toward the inner surface 19a of the jacket, with respect to the shell plane E.
- the bulges are each bounded by a peripheral contour 22a on the lateral surface 19a. In this case is the contour 22a hexagonal, so that the juxtaposition of the curved segments 22 results in a honeycomb structure.
- the bulges 22 are provided by the drum inner side, ie on the convex portions each with additional grooves 24 extending from a star point 26 in the region of the highest elevation on the segment 22, starting from the edge contour 22a, which merges into a web-shaped channel 23 and . forms a web-shaped channel 23.
- the structure of the grooves 24 with the web-shaped channels 23 thus forms a plurality of curved sub-segments 27, here in this embodiment, there are six.
- Fig. 5 is a portion of the shell 19 shown as a settlement.
- the channels 23 and the grooves 24 are curved.
- Fig. 6 shows the structure according to Fig. 5 as a top view.
- the channels 23 and the gutters are outlined as lines.
- the through-holes 25 are arranged in the corner points of the hexagonal arrangement of the channels 23 about a curvature 22, the through-holes 25 are arranged.
- the star point 26 is free of holes.
- the section line EE which extends in the longitudinal direction of the channels, it can be seen that the channels 23 are curved, such that to the holes 25 a continuous slope is present, with respect to the plane E of the drum shell 19.
- Based on the section line DD can be seen that the star point 26 is higher than the respective nearest channel 23.
- the star point 26 and the channel 23 are surmounted by the curvature of the sub-segment 27 and its apex.
- Fig. 7 shows an embodiment in which the star point 26 of the bulges 22 is provided with a further through-hole 25a.
- the star point 26 lies on the plane with the channels 23, which are not curved in this example.
- the curved segments 22 are each provided with six grooves 24 which extend in a star shape from the star point 26 to the holes 25 in the channels 23.
- the curved segment 22 is divided into six sub-segments 27.
- Fig. 8 shows an embodiment in which only three grooves 24 are embossed in a segment 22, which extend from the star point 26, starting at a hole 25 in the channel.
- the channels 23 are each arranged circumferentially around the curved segments 22.
- Fig. 8 further shows that star points 26 are each provided with a through-hole 25a.
- the star point 26 is located there with the hole 25a at the same height or level E as the holes 25 in the channels 23rd
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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 werden kann, umfassend einen zylinderförmigen Mantel, der mittels einer Stirnwand begrenzt ist, wobei der Mantel eine Struktur aus zum Trommelinneren gerichteten Wölbungen, die aus einzelnen gewölbten Segmenten besteht, umfasst, wobei zwischen jeweils benachbarten Segmenten kanalartige Stege ausgebildet sind, in denen Löcher zum Durchtritt von Waschflüssigkeit angeordnet sind.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 an end wall, wherein the jacket has a structure of directed towards the drum interior vaults, which consists of individual curved segments comprises, wherein between each adjacent segments channel-like webs are formed, in which holes for the passage of washing liquid are arranged.
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
Der Erfindung liegt deshalb die Aufgabe zu Grunde, eine Trommel mit Wölbungen für eine schonende Wäschebehandlung bereitzustellen, bei der die mechanische Einwirkung und die Wasserableitung verbessert sind.The invention is therefore based on the object to provide a drum with buckles for a gentle laundry treatment, in which the mechanical action and the drainage are improved.
Die Aufgabe wird durch eine Trommel mit den Merkmalen des Anspruchs 1 und 11 gelöst. Vorteilhafte Ausführungen ergeben sich jeweils aus den nachfolgenden abhängigen Ansprüchen.The object is achieved by a drum with 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. Die gewölbten Bereiche bzw. zumindest die Kuppen der Wölbungen bieten durch die zusätzliche Prägung einen erhöhten Reibwiderstand für die daran entlanggleitenden Wäschestücke, die dann mit dem Trommelmantel mitgenommen werden. Ferner wird die Schonung der Wäschestücke beibehalten, so dass vorzeitiger Verschleiß oder Beschädigungen vermieden werden. Ferner wird die Entwässerung bzw. der Flottenaustausch zwischen gebundener Flotte und freier Flotte, die sich überwiegend im Laugenbehälter außerhalb der Trommel befindet verbessert oder beschleunigt. Hierzu sind in den gewölbten Segmenten im jeweils gewölbten Bereich zusätzliche Rinnen eingeprägt, die von einem Sternpunkt im mittleren Bereich der Wölbung ausgehend sich jeweils zum Segmentrand erstrecken und in einen der kanalartigen Stege münden. Die auf den Wölbungen eingeprägten Rinnen dienen hierbei als Drainagekanäle, durch die das aus der Wäsche ausgepresste Wasser oder die Waschflüssigkeit gezielt zu den Durchflutungslöchern geleitet wird. Die zusätzliche Verprägung sorgt ferner zu einer weiteren Stabilisierung des Trommelmantels, sodass dieser aus dünnerem Blech hergestellt werden kann, gegenüber einem herkömmlichen Trommelmantel. Insgesamt wird eine gute Entwässerung erreicht, trotz geringer Anzahl von Flutlöchern, wobei auch hierbei der Durchmesser der Löcher im Bereich von 1,8 bis 3 mm, vorzugsweise 2 bis 2,5 mm liegt. Der Sternpunkt liegt hierbei in der Ebene der Innenfläche des Trommelmantels höher, also weiter zum Trommelinneren bzw. näher zur Trommelachse, als die Kanäle bzw. die kanalartigen Stege, bezogen auf die Ebene des Mantels. Hierdurch wird auf der Trommelaußenseite eine Verwirbelung der Luft erreicht, wodurch Schaumbildung und die Bildung eines sogenannten Wassermantels vermindert wird.The main advantage of the drum according to the invention is that an improved movement of the laundry within the drum is achieved when it is arranged approximately horizontally or inclined and rotated at a normal speed for the washing phase, for example 20 to 70 rpm. The curved areas or at least the crests of the vaults offer by the additional embossing an increased frictional resistance for the clothes sliding along it, which are then taken with the drum shell. Furthermore, the conservation of the laundry items is maintained, so that premature wear or damage can be avoided. Furthermore, the dewatering or liquor exchange between bound liquor and free liquor, which is predominantly in the tub outside the drum is improved or accelerated. For this purpose, additional grooves are embossed in the arched segments in each curved area, which extend from a star point in the central region of the curvature starting in each case to the segment edge and open into one of the channel-like webs. The grooves impressed on the bulges serve as drainage channels, through which the water or the washing liquid pressed out of the laundry is directed to the throughflow holes. The additional embossing also ensures further stabilization of the drum shell, so that it can be made of thinner sheet metal, compared to a conventional drum shell. Overall, a good drainage is achieved, despite a small number of flood holes, in which case the diameter of the holes in the range of 1.8 to 3 mm, preferably 2 to 2.5 mm. In this case, the star point is higher in the plane of the inner surface of the drum shell, that is, further toward the interior of the drum or closer to the drum axis, than the channels or the channel-like webs, relative to the plane of the shell. As a result, a turbulence of the air is achieved on the outside of the drum, whereby foaming and the formation of a so-called water jacket is reduced.
In einer vorteilhaften Ausführung sind die Rinnen auf der Kuppe bzw. auf der Wölbung so geführt, dass sie an einem Loch im kanalartigen Steg münden. Dadurch wird ein kurzer und direkter Weg für die Wasserableitung bereitgestellt.In an advantageous embodiment, the grooves on the dome or on the curvature are guided so that they open at a hole in the channel-like web. This provides a short and direct route for water drainage.
Insgesamt ist es vorteilhaft, dass die Rinnen ein stetiges Gefälle zum kanalartigen Steg aufweisen, bezogen auf die Ebene der Innenseite des Mantels, wobei als Gefälle die Richtung vom Scheitelbereich der Wölbung ausgehend, der näher zum Trommelinneren liegt, zum Trommeläußeren angesehen wird.Overall, it is advantageous that the grooves have a continuous slope to the channel-like web, relative to the plane of the inside of the shell, wherein the gradient is the direction from the apex portion of the curvature, which is closer to the drum inside, is considered to the drum outer.
In einer anderen Ausführung sind die zwischen den gewölbten Segmenten angeordneten kanalartigen Stege relativ zur Ebene des Mantels gekrümmt ausgebildet, derart, dass sie ein Gefälle zu den Löchern aufweisen. Damit wird eine Ableitung des Wassers oder der Waschflüssigkeit aus den Stegen zu den Löchern zwischen den gewölbten Segmenten beschleunigt bzw. verbessert.In another embodiment, the channel-like webs disposed between the arched segments are curved relative to the plane of the shell, such that they have a slope to the holes. Thus, a derivative of the water or the washing liquid from the webs to the holes between the curved segments is accelerated or improved.
In einer weiteren, vorteilhaften Ausführung liegt der Sternpunkt in der Ebene der Innenfläche des Trommelmantels höher, also weiter zum Trommelinneren, als die Kanäle bzw. die kanalartigen Stege, bezogen auf die Ebene des Mantels. Hierdurch wird auf der Trommelaußenseite eine Verwirbelung der Luft erreicht, wodurch Schaumbildung und die Bildung eines sogenannten Wassermantels vermindert wird.In a further advantageous embodiment of the star point in the plane of the inner surface of the drum shell is higher, ie further to the drum interior, as the channels or the channel-like webs, based on the plane of the shell. As a result, a turbulence of the air is achieved on the outside of the drum, whereby foaming and the formation of a so-called water jacket is reduced.
In einer zweckmäßigen Weiterbildung sind die Rinnen eben ausgebildet und die Rinnen liegen in einem Winkel zur Ebene des Mantels, wodurch sie ein stetiges Gefälle zum jeweils kanalartigen Steg aufweisen. Durch das Gefälle zum Trommeläußeren wird die Ableitung von Wasser oder Waschflüssigkeit verbessert bzw. beschleunigt.In an expedient development, the grooves are formed and the grooves are at an angle to the plane of the shell, whereby they have a steady slope to the respective channel-like web. Due to the gradient to the outside of the drum, the discharge of water or washing liquid is improved or accelerated.
In einer anderen Weiterbildung sind die Rinnen gekrümmt zur Ebene des Mantels ausgebildet und weisen ein stetiges Gefälle zum jeweils kanalartigen Steg auf. Durch die Krümmung kann die Rinne dem Wölbungsverlauf der Rinne folgen und mit einer im Wesentlichen konstanten Tiefe versehen werden.In another development, the grooves are curved to the plane of the shell and have a steady slope to the respective channel-like web. Due to the curvature, the channel can follow the curvature course of the channel and be provided with a substantially constant depth.
Insgesamt ist die Struktur der Rinnen auf einem Segment so ausgeführt, dass der Sternpunkt von benachbarten gewölbten Teilbereichen des gewölbten Segments, die jeweils durch miteinander in Verbindung liegenden Stegen und Rinnen begrenzt sind, umgeben ist. Somit umfasst jedes einzelne gewölbte Segment eine Vielzahl von gewölbten Teilsegmenten, die von Rinnen und einem Kanal umgeben sind. Die gewölbten Teilbereiche liegen dabei zumindest teilweise höher, als der Sternpunkt, bezogen auf die Ebene der Innenfläche des Trommelmantels. Damit wird zumindest teilweise verhindert, dass die Wäschestücke sich in den Rinnen festsetzen und den Drainageeffekt blockieren.Overall, the structure of the grooves on a segment is designed so that the star point of adjacent curved portions of the curved segment, which are each bounded by interconnected ridges and channels, is surrounded. Thus, each individual domed segment includes a plurality of domed sub-segments surrounded by gutters and a channel. The curved portions are at least partially higher than the star point, based on the plane of the inner surface of the drum shell. This is at least partially prevents the laundry items settle in the gutters and block the drainage effect.
In einer weiteren Ausführung ist im Sternpunkt jeweils ein weiteres Loch angeordnet. Damit werden die Ableitung und/oder der Flottenaustauch beschleunigt.In another embodiment, another hole is arranged in each star point. This accelerates the discharge and / or fleet exchange.
In einer alternativen Ausführung ist der Sternpunkt frei von Löchern. Das hat den Effekt, dass die Wäschestücke besser geschont werden, da Kontakte zu einem zusätzlichen Lochrand vermieden werden.In an alternative embodiment, the star point is free of holes. This has the effect that the laundry items are better protected, as contacts to an additional hole edge are avoided.
In einer weiteren Ausführung sind in den gewölbten Segmenten im jeweils gewölbten Bereich zusätzliche Rinnen eingeprägt, die sich von einem Sternpunkt im mittleren Bereich der Wölbung ausgehend jeweils zum Segmentrand erstrecken und in einen der kanalartigen Stege münden, wobei der Sternpunkt und die Rinnen auf der Innenfläche des Trommelmantels in der gleichen Ebene liegen, wie die Kanäle, und ferner im Sternpunkt ein weiteres Loch angeordnet ist. Dadurch wird auf einfache Weise eine facettenartige Struktur erreicht, wobei die Anzahl der Wölbungen durch die zusätzliche Prägung vervielfacht wird.In a further embodiment, additional channels are stamped in the arched segments in the respective curved area, extending from a star point in the central region of the curvature extending in each case to the edge of the segment and open into one of the channel-like webs, wherein the star point and the grooves on the inner surface of the drum shell lie in the same plane as the channels, and further in the neutral point another hole is arranged. As a result, a facet-like structure is achieved in a simple manner, wherein the number of bulges is multiplied by the additional embossing.
Insgesamt ist es zweckmäßig, die Segmente als Vielecke auszubilden und die Rinnen so auszuführen, dass sie in Eckpunkte der Vielecke münden, wobei die Löcher an den Eckpunkten der Vielecke angeordnet sind. Damit kann auf einfache Weise der gesamte Mantelbereich mit einer Wölbstruktur versehen werden, was sich vorteilhaft auf die Stabilität des Mantels auswirkt.Overall, it is expedient to form the segments as polygons and run the grooves so that they open into vertices of the polygons, the holes are arranged at the vertices of the polygons. This can be provided in a simple manner, the entire jacket area with a buckle structure, which has an advantageous effect on the stability of the shell.
In einer vorteilhaften Weiterbildung sind die Segmente als Sechsecke ausgebildet, die jeweils drei Rinnen umfassen, die sich vom Sternpunkt ausgehend in drei Ecken des Segments erstrecken. Dadurch ergibt sich eine Struktur, die einer Vielzahl von jeweils benachbarten Rauten ähnelt oder gleicht.In an advantageous development, the segments are formed as hexagons, each comprising three grooves extending from the star point in three corners of the segment. This results in a structure that resembles or resembles a plurality of adjacent diamonds.
In einer anderen, vorteilhaften Weiterbildung sind die Segmente ebenfalls als Sechsecke ausgebildet, wobei die Sechsecke in dieser Ausführung jeweils sechs Rinnen umfassen, die sich vom Sternpunkt ausgehend in die sechs Ecken des Segments erstrecken. Dadurch ergibt sich eine facettenartige Struktur aus Sechsecken, die aus jeweils sechs Dreiecken bestehen, deren Spitzen sich im gemeinsamen Sternpunkt treffen.In another advantageous embodiment, the segments are also formed as hexagons, wherein the hexagons in this embodiment each comprise six grooves extending from the star point in the six corners of the segment. This results in a facet-like structure of hexagons, each consisting of six triangles whose tips meet in the common star point.
Insgesamt ist es zweckmäßig, die Kanäle und die Rinnen mit einer Breite im Bereich von 0,5 bis 3 mm zu versehen. Dadurch wird einerseits eine gute und gezielte Abführung der Waschflüssigkeit oder des Wassers erreicht und andererseits wird verhindert, dass beim Schleudern die Wäschestücke vollständig in alle Kanäle oder Rinnen eindringen und verstopfen. Der Drainageeffekt wird somit über einen langen Zeitraum beim Schleudern aufrechterhalten, wodurch die Wirkung der Entwässerung verbessert wird.Overall, it is expedient to provide the channels and the gutters with a width in the range of 0.5 to 3 mm. As a result, on the one hand a good and targeted removal of the washing liquid or water is achieved and on the other hand prevents the laundry completely penetrate and clog in all channels or grooves during spin. The drainage effect is thus maintained over a long period of spinning, whereby the effect of the drainage is improved.
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 9:
- den Trommelmantel in abgewickelten Ansichten und Schnittdarstellungen für mehrere Ausführungen.
- Fig. 1:
- a washing machine in a sketched sectional view;
- Fig. 2:
- the drum in a perspective view and
- 3 to 9:
- the drum shell in developed views and sectional views for several designs.
In
In
In
Gemäß
Claims (15)
- 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 inclined shaft (7), comprising a cylindrical casing (19) which is delimited by means of an end wall (20), the casing (19) comprising a structure made up of domes which face the inside of the drum and consist of individual domed segments (22), channel-like webs (23) being constructed between each pair of neighbouring segments, in which webs holes (25) are arranged for the passage of washing liquid, characterised in that additional grooves (24) are formed in the respective domed regions in the domed segments (22), each extend to the corresponding segment edge, starting from a star point (26) in the central region of the dome (22), and open into one of the channel-like webs (23), the star point (26) being located higher on the inside surface (19b) of the drum casing, that is to say closer to the drum shaft (7), than the channels (23).
- Drum according to claim 1, characterised in that each groove (24) opens into a hole (25) in the channel-like web (23).
- Drum according to either claim 1 or claim 2, characterised in that the grooves (24) are at a constant gradient with respect to the channel-like web (23), based on the plane (E) of the casing (19).
- Drum according to either claim 1 or claim 2, characterised in that the channel-like webs (23) have a curved configuration in relation to the plane (E) of the casing (19), such that they are at a gradient with respect to the holes (25).
- Drum according to claim 1, characterised in that the grooves (24) have a planar configuration and are at an angle with respect to the plane (E) of the casing (19), as a result of which they are at a constant gradient with respect to the respective channel-like webs (23).
- Drum according to claim 1, characterised in that the grooves (24) have a curved configuration with respect to the plane (E) of the casing (19) and a constant gradient with respect to the respective channel-like webs (23).
- Drum according to claim 1, characterised in that the star point (26) is surrounded by neighbouring domed portions (27) of the domed segment (22), which are each delimited by webs (23) and grooves (24) which are interconnected.
- Drum according to claim 7, characterised in that the domed portions (27) are located higher, at least in some parts, than the star point (26), based on the plane (E) of the inside surface (19, 19a) of the drum casing.
- Drum according to claim 1, characterised in that a further hole (25a) is arranged in each star point (26).
- Drum according to claim 1, characterised in that the star point (26) is free from holes.
- 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 inclined shaft (7), comprising a cylindrical casing (19) which is delimited by means of an end wall (20), the casing (19) comprising a structure made up of domes which face the inside of the drum and consist of individual domed segments (22), channel-like webs (23) being constructed between each pair of neighbouring segments, in which webs holes (25) are arranged to allow washing liquid to enter, characterised in that additional grooves (24) are formed in the respective domed regions in the domed segments (22), each extend to the corresponding segment edge (22a), starting from a star point (26) in the central region of the dome, and open into one of the channel-like webs (23), the star point (26) and the grooves (24) being located on the inside surface (19a) of the drum casing (19) in the same plane (E) as the channels (23) and, in addition, a further hole (25a) being arranged in the star point (26).
- Drum according to either claim 1 or claim 11, characterised in that the segments (22) are configured as polygons and the grooves (24) open into corner points of the polygon (22), the holes (25) being arranged at the corner points of the polygons (22).
- Drum according to claim 12, characterised in that the segments (22) are configured as hexagons which each comprise three grooves (24) extending to three corners of the segment (22), starting from the star point (26).
- Drum according to claim 12, characterised in that the segments (22) are configured as hexagons which each comprise six grooves (24) extending to the six corners of the segment (22), starting from the star point (26).
- Drum according to either claim 1 or claim 11, characterised in that the width of the channels (23) and of the grooves (24) is in the range of 0.5 to 3 mm.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES11401007T ES2399412T3 (en) | 2011-01-11 | 2011-01-11 | Drum with bulging structure for a washing machine |
EP11401007A EP2474659B1 (en) | 2011-01-11 | 2011-01-11 | Drum with curved structure for a washing machine |
PL11401007T PL2474659T3 (en) | 2011-01-11 | 2011-01-11 | Drum with curved structure for a washing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11401007A EP2474659B1 (en) | 2011-01-11 | 2011-01-11 | Drum with curved structure for a washing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2474659A1 EP2474659A1 (en) | 2012-07-11 |
EP2474659B1 true EP2474659B1 (en) | 2013-01-09 |
Family
ID=44166453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11401007A Active EP2474659B1 (en) | 2011-01-11 | 2011-01-11 | Drum with curved structure for a washing machine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2474659B1 (en) |
ES (1) | ES2399412T3 (en) |
PL (1) | PL2474659T3 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2628839A1 (en) * | 2012-02-18 | 2013-08-21 | Samsung Electronics Co., Ltd | Washing machine |
KR101944366B1 (en) * | 2012-10-10 | 2019-02-07 | 삼성전자주식회사 | Washing Machine |
DE102015106862A1 (en) * | 2015-05-04 | 2016-11-10 | Miele & Cie. Kg | Washing machine and drum for a washing machine |
NL2016259B1 (en) * | 2016-02-15 | 2017-08-22 | Hyperwash B V | Washing device comprising a washing drum with profile elements. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6334341B1 (en) | 1996-11-02 | 2002-01-01 | Miele & Cie. Gmbh & Co. | Cylinder washing machine |
DE29705226U1 (en) * | 1997-03-22 | 1998-07-23 | AEG Hausgeräte GmbH, 90429 Nürnberg | Washing drum for a washing machine |
DE10162918A1 (en) | 2001-12-20 | 2003-07-03 | Bsh Bosch Siemens Hausgeraete | Drum for a laundry treatment machine |
DE102006062189B4 (en) * | 2006-12-22 | 2009-03-19 | Dr. Mirtsch Gmbh | Method for producing a structured material web for the passage of fluid media, structured material web and use thereof |
KR101136863B1 (en) * | 2007-02-28 | 2012-04-20 | 삼성전자주식회사 | Washing machine |
EP2177657B1 (en) * | 2008-10-16 | 2013-01-09 | Miele & Cie. KG | Drum for a washing machine |
-
2011
- 2011-01-11 EP EP11401007A patent/EP2474659B1/en active Active
- 2011-01-11 ES ES11401007T patent/ES2399412T3/en active Active
- 2011-01-11 PL PL11401007T patent/PL2474659T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
ES2399412T3 (en) | 2013-04-01 |
EP2474659A1 (en) | 2012-07-11 |
PL2474659T3 (en) | 2013-04-30 |
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