WO2003054275A1 - Drum for a linen processing machine with a domed structure directed toward the inside of said drum - Google Patents

Drum for a linen processing machine with a domed structure directed toward the inside of said drum Download PDF

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Publication number
WO2003054275A1
WO2003054275A1 PCT/EP2002/009352 EP0209352W WO03054275A1 WO 2003054275 A1 WO2003054275 A1 WO 2003054275A1 EP 0209352 W EP0209352 W EP 0209352W WO 03054275 A1 WO03054275 A1 WO 03054275A1
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WO
WIPO (PCT)
Prior art keywords
drum
knobs
drum according
base plate
approximately
Prior art date
Application number
PCT/EP2002/009352
Other languages
German (de)
French (fr)
Inventor
Ingo Schulze
Alfred Nitsche
Uwe Ratfisch
Wilfried Wildung
Original Assignee
BSH Bosch und Siemens Hausgeräte GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to KR1020047009178A priority Critical patent/KR100887857B1/en
Priority to EP02805270A priority patent/EP1458919B1/en
Priority to CN028258592A priority patent/CN1608157B/en
Priority to PL368845A priority patent/PL197941B1/en
Priority to AT02805270T priority patent/ATE500373T1/en
Priority to DE50214939T priority patent/DE50214939D1/en
Publication of WO2003054275A1 publication Critical patent/WO2003054275A1/en

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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

Definitions

  • the invention relates to a drum for a washing treatment machine, the
  • Drum is rotatably mounted within the housing of the washing treatment machine and has at least one base plate and a jacket, each of which at least partially consist of sheet metal and individually or both are provided with a domed structure directed towards the inside of the drum.
  • a drum is known from WO 98/20195.
  • the arch structure is formed from a plurality of hexagons arranged at least almost directly next to one another; it is therefore generally referred to as a honeycomb drum.
  • the edge areas of the hexagons take in the flood holes at their corner points, which according to WO 98/20195 are said to be only 2 mm in diameter and no longer have to have any tulips in order to protect the laundry even during the spin cycle. Accordingly, the edge areas must be 1.5 to 2.5 times the hole diameter between 3 and 5 mm wide.
  • the invention has for its object to provide a drum of the type mentioned, in which the vaulted structure has directly adjacent elements, but the flood holes can still be left enough space so that they still have sufficiently large diameters for sufficient lye drainage. Furthermore, the production of the arch structure should not be problematic either in itself or in its effect on other specifications. The improved stiffness that can be achieved by the arch structure should at least be maintained or better to be increased. According to the invention, this object is achieved in that the arch structure consists of knobs directed towards the inside of the drum, the edges of which are essentially circular or elliptical or oval. In this way, curved elevations similar to spherical domes can be designed which just touch on their peripheries with the respective adjacent elevation. The laundry is thus prevented from penetrating to the bottom of the edge areas. Thermoforming processes in the manufacture of
  • the arch structure is uniform and the material remains homogeneous. Those edge areas that form more extensive, polygons-like areas due to the curves of the elevations automatically leave more space for larger flood holes. This results in a considerably simpler manufacture of these arch structures compared to those from the prior art, because no such tight tolerances have to be observed when centering the arch structure to be introduced with respect to the perforation that has already been produced.
  • the knobs are arranged at the intersections of a regularly polygonal axis pattern.
  • the regular arrangement of the knobs also has the advantage that the arrangement of the axis pattern matches the arrangement of the hole pattern, which enormously simplifies production.
  • a particularly advantageous form of embodiment of the invention is obtained if the axis pattern on the lateral surface contains a multiplicity of adjacent, equilateral triangles.
  • the least possible polygonal, here triangular, area of the edge areas between the non-adjacent knobs is simplified.
  • a further development of the invention is suitable for the universal use of the structure according to the invention, in which the alignment lines of the axis pattern follow the shape of the outer edge of the jacket or of the bottom, ie. H. for example, that they are straight or circular.
  • This structure can then be used in the best way for disc-shaped bottoms of laundry drums, without forming large areas without knobs.
  • a further development of the invention is particularly suitable, in which flood holes for the passage of the wash liquor are arranged on the lateral surface between the knobs at the intersection of the bisectors of the triangles.
  • the arrangement of flood holes in this area has a particular advantage because the moisture driven into the area of the drum casing during the spin cycle, as soon as it has reached the inner surface of the drum casing, continues from the areas where the knobs touch to the
  • Crossing points is driven because the valleys between the knobs widen towards the crossing points; So the moisture cannot remain at the narrowest points, but is driven from there to the other areas at the location of the crossing points.
  • Knobs are attached at the intersection of the bisectors in at least approximately circular areas, the periphery of which forms sections of the circumference of the knobs in a circle.
  • the selected structure increases the rigidity of the lateral surface. If the flat perforation at the aforementioned points of intersection should nevertheless prove to be too dangerous for the laundry, according to a further particularly advantageous development of the invention, there is best enough space here for the flood holes in the plane furthest away from the drum axis a bulge placed outside the drum.
  • the areas at the crossing points are large enough to accommodate a protuberance through which the
  • the minimum distance between the knobs should be about one eighth to one twenty fifth in relation to their diameter. A value of around a tenth has proven to be very suitable.
  • the height of the knobs in relation to their diameters should be about one fifth to one twentieth. A value of around a twelfth has proven to be very suitable.
  • the further development of the invention is particularly advantageous in such a way that the alignment lines are arranged concentrically to the center of the bottom disk and the axis patterns arranged on the alignment lines correspond to the shortening of the center of the drum
  • knobs Have a shortened side line around the circumference of the respective escape line.
  • a homogeneous structure of knobs can thus be arranged on the base plate, which in turn is advantageous for the congruence of the knob structure and the hole pattern.
  • the diameter of the knobs and / or the distances between them are reduced in accordance with the shortening of the circumference of the assigned escape line.
  • the structure of the base plate has the advantage of congruence between the knob structure and the hole pattern that the large number of differently sized elements on the base plate form just as many individual resonators for different listening frequencies, which broaden the resonance spectrum very much, but in return extremely dampen its resonance amplitudes.
  • the surface of the drivers can also be provided with a domed structure made of knobs. This can be advantageous for the mechanical processing of the laundry in the washing program section.
  • FIG. 1 is a perspective view of a laundry drum, which is provided on its drum shell and on a base plate with knob structures according to the invention
  • FIG. 2 shows a detail from a development of a drum casing equipped with a shape of the knob structure according to the invention with pleading flood holes
  • 3 shows an enlarged cross section of a knob curvature along a section line HI-HI in FIG. 2
  • FIG. 4 shows a detail from a development of a drum casing with a different shape of the knob structure according to the invention than the shape shown in FIG. 3, with tulip-shaped flood holes, FIG.
  • Fig. 5 is an enlarged cross section of a knob curvature along a section line V-V in Fig. 4 and
  • FIG. 6 shows a detail of the view of a base plate which is provided with a knob structure according to the invention.
  • the laundry drum 1 shown in FIG. 1 can be rotated about an at least approximately horizontally oriented axis 2. For this purpose, it is connected to a drive, not shown here.
  • the front of the drum 1 is open. It can either be closed with a rotating end plate or be mounted on a standing end plate (both not shown).
  • the drum is firmly connected to a base plate 3, into which drive torques can be introduced.
  • the base plate has a star-shaped embossing 4, which is only partially visible here and serves the stability of the plate. It can also be reinforced on the back with a cast star, not shown.
  • the drum 1 is formed by the jacket 5, which consists of a cylindrically bent sheet metal strip held together at a point not visible here with a connecting seam.
  • the base plate 3 and the development of the drum shell 5 have been provided with a knob structure in an embossing tool, which is shown and described below. While the knobs 6 in the drum casing 5 are all of the same size, the base plate 3 also has the largest knobs 8 on its largest escape line circle and knobs 9 to 15 on each of the smaller escape line circles towards the center, each with gradually smaller diameters. As a result, the knobs 6 on the drum casing 5 and the knobs 8 to 15 on the base plate 3 can each be arranged in a triangular arrangement with respect to one another, as will be explained in more detail below.
  • knobs 6, which consist of an embossment drawn in the manner of a spherical cap (see FIG. 3), on the intersections of a regularly polygonal axis pattern, namely a triangular axis pattern, are arranged.
  • This axis pattern is defined by the alignment line 16 and the other two axes 17 and 18 determined, of which the escape line 16 is parallel to the outer edge 19 of the drum jacket sheet metal strip.
  • the two axes 17 and 18 are each rotated by 60 ° to the left or by 60 ° to the right to the escape line 16. Accordingly, all axes have duplicates arranged parallel to one another, all of which have the same distance from one another.
  • the distance A between the knobs 6 is about one eighth to one twenty fifth, preferably one tenth, of theirs
  • the diameter D of the flood holes is of course also spun, which in the example shown can be approximately 3.5 mm. This value also stands for good fluid drainage, which is supported by the good drainage between the knobs 6.
  • FIGS. 4 and 5 for the design of the cladding sheet 5 is the same as the example according to FIGS. 2 and 3 with regard to the knob structure and the arrangement of the flood holes.
  • the flood holes 25 are arranged in the triangular areas 24 between the knobs 6 in a floor plane 26 (FIG. 5) of depressions 27 drawn outward like tulips. This makes it difficult for the items of laundry lying between the knobs 6 during the spin to penetrate into the depressions 27 to such an extent that the flood holes 25 can only be reached at all; let alone that the laundry see it could also penetrate so as to reach the dangerous ridge on the outer edge of holes 25.
  • FIG. 6 shows a section of the sheet metal of a base plate 3 (FIG. 1).
  • the outer edge 28 of the base plate 3 is also the outer boundary of the surface on which the knob structure can be attached.
  • the inner boundary of this area is defined by line 29.
  • the basic structure of the knob arrangement and the hole pattern corresponds to that in FIGS. 2 and 4.
  • the alignment line 30-1 and all of its inner parallels 30-2, 30-3 etc. are concentrically circular in accordance with the axis 16 in FIG. 2 in a position parallel to the outer edge 28.
  • the other axes 31 and 32 - rotated 60 ° to the right and to the left against the alignment line 30-1 - are curved toward the center of the circle, so that the side lines of the triangles formed from them shorten with increasing proximity to the center of the circle, which lies on a distant crossing point M of the two radius lines R drawn.
  • the side line F-K of the triangle F, K, L lying further inside is shorter than the side line E-F of the triangle E, F, G lying further outside.
  • the diameters of the knobs 6 are smaller with increasing proximity to the center of the circle M, because the inner alignment line 30-2 is shorter than the outer one (30-1) and therefore for the same number of
  • Noppen 6 only less distance is available. This also explains the shortening of the side lines of the triangles and the curvature of the axes 31 and 32.
  • drivers for lifting the laundry during the rotation of the drum are arranged, the surfaces of these drivers facing inside the drum can also be designed with a corresponding knob structure. This can be somewhat advantageous for the mechanical processing of the laundry.
  • the invention is not restricted to the axis patterns shown here. Further regular axis patterns are conceivable for solving the same task. So can For example, a rectangular or, specifically, square arrangement of the axes can be quite advantageous. Then there might be additional flood holes in the square areas between the knobs or a mixture of flat and bulging flood holes. Mixed forms of differently regular axis patterns can also be used. Furthermore, this type of arch structure can also be used in laundry drums for tumble dryers.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

The invention relates to a drum (1), which is mounted to rotate within the housing of a linen processing machine, preferably a washing machine. Said drum comprises at least one bottom disc (3) as well as a shell (5). Both components are each at least partially made of sheet steel and one of said components or both have a domed structure directed toward the inside of the drum. The aim of said invention is to increase the rigidity of said components (3) and (5), in order to improve the draining capacity thereof and increase the look-and-feel thereof. Said aim is achieved, whereby the domed structure is formed from spherical caps (6) directed toward the inside of said drum.

Description

TROMMEL FÜR EINE WASCHEBEHANDLUNGSMASCHINE MIT ZUM TROMMELINNEREN DRUM FOR A WASHING TREATMENT MACHINE WITH THE DRUM INSIDE
GERICHTETER WÖLBSTRUKTURTARGETED Vaulting STRUCTURE
Die Erfindung betrifft eine Trommel für eine Waschebehandlungsmaschine, wobei dieThe invention relates to a drum for a washing treatment machine, the
Trommel innerhalb des Gehäuses der Waschebehandlungsmaschine drehbar gelagert ist und mindestens eine Bodenscheibe sowie einen Mantel aufweist, die jede mindestens teilweise aus Blech bestehen und einzeln oder beide mit einer zum Trommelinneren gerichteten Wölbstruktur versehen sind. Eine solche Trommel ist aus der WO 98/20195 bekannt. Darin ist die Wölbstruktur als aus einer Vielzahl von wenigstens nahezu unmittelbar nebeneinander angeordneten Sechsecken gebildet; sie wird daher allgemein als Wabentrommel bezeichnet. Die Randbereiche der Sechsecke nehmen an deren Eckpunkten die Flutlöcher auf, die gemäß WO 98/20195 nur noch 2 mm im Durchmesser betragen sollen und keinerlei Tulpung mehr haben müssen, um die Wäsche auch beim Schleudergang zu schonen. Entsprechend müssen die Randbereiche mit dem 1 ,5- bis 2,5-fachen des Lochdurchmessers zwischen 3 und 5 mm breit sein.Drum is rotatably mounted within the housing of the washing treatment machine and has at least one base plate and a jacket, each of which at least partially consist of sheet metal and individually or both are provided with a domed structure directed towards the inside of the drum. Such a drum is known from WO 98/20195. In it, the arch structure is formed from a plurality of hexagons arranged at least almost directly next to one another; it is therefore generally referred to as a honeycomb drum. The edge areas of the hexagons take in the flood holes at their corner points, which according to WO 98/20195 are said to be only 2 mm in diameter and no longer have to have any tulips in order to protect the laundry even during the spin cycle. Accordingly, the edge areas must be 1.5 to 2.5 times the hole diameter between 3 and 5 mm wide.
Die Herstellung eines Mantelbleches zur Verwendung bei einer Wäschetrommel hat gewisse Schwierigkeiten, die auch in der WO 98/20195 durchklingen. So wird die Zentrie- rung zwischen dem Lochmuster und der im nachfolgenden Herstellungsgang angebrachten Wölbstruktur trotz aller Mühe ein Problem bleiben, weshalb die Breite der Randbereiche aus Toleranzgründen einigermaßen großzügig bemessen sein muss. Dies hat aber wieder eine verminderte Drainagefähigkeit zur Folge, weil sich die Wäsche beim Schleudern bis in die relativ breiten Randbereich hinein zieht. Dort verlegt sie dann natürlich den Abfluss der bis in den Mantelbereich getriebenen Lauge hin zu den Flutlöchern.The production of a cladding sheet for use in a laundry drum has certain difficulties, which are also apparent in WO 98/20195. In spite of all the effort, the centering between the hole pattern and the arch structure applied in the subsequent manufacturing process will remain a problem, which is why the width of the edge areas must be reasonably generous for tolerance reasons. However, this again results in reduced drainage capacity because the laundry pulls into the relatively wide edge area when spinning. There, of course, she then moves the drain of the lye, which has been driven into the jacket area, to the flood holes.
Außerdem hat sich gezeigt, dass sich die Wäsche bei hoher Zentrifugalbeschleunigung auch durch die sehr klein bemessenen Flutlöcher zieht. Auf diese Weise hat man zwei Nachteile miteinander kombinert; denn die Wäscheschädigung ist auch mit kleinen Löchern nicht zu vermeiden; diese kleinen Löcher vermindern aber merklich die Laugenab- führung beim Schleudern. Ferner ist die Herstellung der sechseckigen Wölbungen im Tiefziehverfahren dadurch problematisch, dass die Eckbereiche über eine längere Strecke gezogen werden müssen als die Grundlinienbereiche. Dadurch ergeben sich inhomogene Kristallstrukturen in den gezogenen Blechbereichen, die das Material unterschiedlich hart machen. Gerade in den Eckbereichen, aus denen die Flutlöcher ausgestanzt werden sollen, wird das Material härter, so dass die ohnedies schon dünneren Stanznadeln noch stärker belastet sind als bei einem konventionellen Trommelmantel ohne Wölbstruktur.It has also been shown that the laundry runs through the very small flood holes with high centrifugal acceleration. In this way two disadvantages have been combined; because damage to the laundry cannot be avoided even with small holes; however, these small holes noticeably reduce the lye drainage when spinning. Furthermore, the production of the hexagonal curvatures in the deep-drawing process is problematic in that the corner regions have to be drawn over a longer distance than the baseline regions. This results in inhomogeneous crystal structures in the drawn sheet metal areas, which make the material hard. Especially in the corner areas from which the flood holes are to be punched out, the material becomes harder, so that the already thinner punching needles are loaded even more than with a conventional drum jacket without a curved structure.
Der Erfindung liegt die Aufgabe zugrunde, eine Trommel der eingangs genannten Art anzugeben, bei der die Wölbstruktur unmittelbar aneinander grenzende Elemente hat, den Flutlöchern aber dennoch genügend Platz gelassen werden kann, damit sie für eine ausreichende Laugenabführung noch genügend große Durchmesser haben. Ferner soll die Herstellung der Wölbstruktur weder in sich selbst noch in ihrer Wirkung auf andere Vorgaben problematisch sein. Die durch die Wölbstruktur erreichbare verbesserte Steifig- keit soll zumindest beibehalten oder besser noch zu erhöhen sein. Eine Lösung dieser Aufgabe ergibt sich erfindungsgemäß dadurch, dass die Wölbstruktur aus zum Trommelinneren hin gerichteten Noppen besteht, deren Ränder im wesentlichen kreis- oder ellipsenförmig oder oval ausgebildet sind. Dadurch lassen sich gewölbte, Kugelkalotten ähnliche Erhebungen gestalten, die an ihren Peripherien sich gerade mit der jeweiligen benachbarten Erhebung berühren. Der Wäsche wird damit das Eindringen bis auf den Grund der Randbereiche verwehrt. Tiefziehvorgänge bei der Herstellung derThe invention has for its object to provide a drum of the type mentioned, in which the vaulted structure has directly adjacent elements, but the flood holes can still be left enough space so that they still have sufficiently large diameters for sufficient lye drainage. Furthermore, the production of the arch structure should not be problematic either in itself or in its effect on other specifications. The improved stiffness that can be achieved by the arch structure should at least be maintained or better to be increased. According to the invention, this object is achieved in that the arch structure consists of knobs directed towards the inside of the drum, the edges of which are essentially circular or elliptical or oval. In this way, curved elevations similar to spherical domes can be designed which just touch on their peripheries with the respective adjacent elevation. The laundry is thus prevented from penetrating to the bottom of the edge areas. Thermoforming processes in the manufacture of
Wölbstruktur sind gleichmäßig, und das Material bleibt homogen. Diejenigen Randbereiche, die aufgrund der Rundungen der Erhebungen weitflächigere, Vielecken ähnliche Areale bilden, lassen automatisch mehr Platz für größere Flutlöcher. Dadurch bedingt ist eine erheblich einfachere Herstellung dieser Wölbstrukturen gegenüber denen aus dem Stand der Technik möglich, weil keine so engen Toleranzen bei der Zentrierung der einzubringenden Wölbstruktur gegenüber der bereits hergestellten Lochung eingehalten werden müssen.The arch structure is uniform and the material remains homogeneous. Those edge areas that form more extensive, polygons-like areas due to the curves of the elevations automatically leave more space for larger flood holes. This results in a considerably simpler manufacture of these arch structures compared to those from the prior art, because no such tight tolerances have to be observed when centering the arch structure to be introduced with respect to the perforation that has already been produced.
In einer vorteilhaften Weiterbildung der Erfindung sind die Noppen in den Schnittpunkten eines regelmäßig vieleckigen Achsenmusters angeordnet. Die regelmäßige Anordnung der Noppen hat über den ästhetischen Wert hinaus auch den Vorteil, dass die Anordnung des Achsenmusters mit der Anordnung des Lochmusters übereinstimmt, was die Fertigung enorm vereinfacht.In an advantageous development of the invention, the knobs are arranged at the intersections of a regularly polygonal axis pattern. In addition to the aesthetic value, the regular arrangement of the knobs also has the advantage that the arrangement of the axis pattern matches the arrangement of the hole pattern, which enormously simplifies production.
Eine besonders vorteilhafte Form der Ausbildung der Erfindung ergibt sich dabei, wenn das Achsenmuster auf der Mantelfläche eine Vielzahl von aneinander grenzenden, gleichseitigen Dreiecken enthält. Dabei ist nämlich einerseits die vereinfachte Fertigung mit einer geringstmöglichen vieleckigen, hier nämlich dreieckigen, Fläche der Randbereiche zwischen den nicht aneinandergrenzenden Noppen zu vereinigen.A particularly advantageous form of embodiment of the invention is obtained if the axis pattern on the lateral surface contains a multiplicity of adjacent, equilateral triangles. On the one hand, there is simplified production with the least possible polygonal, here triangular, area of the edge areas between the non-adjacent knobs.
Für die universelle Verwendung der erfindungsgemäßen Struktur eignet sich eine Weiterbildung der Erfindung, bei der die Fluchtlinien des Achsenmusters der Form der Außen- kante des Mantels bzw. des Bodens folgen, d. h. dass sie beispielsweise gerade oder kreisförmig sind. Diese Struktur kann dann nämlich bestens auch bei scheibenförmigen Böden von Wäschetrommeln angewendet werden, ohne dass sich zu große Flächen ohne Noppen bilden.A further development of the invention is suitable for the universal use of the structure according to the invention, in which the alignment lines of the axis pattern follow the shape of the outer edge of the jacket or of the bottom, ie. H. for example, that they are straight or circular. This structure can then be used in the best way for disc-shaped bottoms of laundry drums, without forming large areas without knobs.
Für Wäschetrommeln von Waschmaschinen eignet sich eine Weiterbildung der Erfindung in besonderem Maße, bei der auf der Mantelfläche zwischen den Noppen im Kreuzungspunkt der Seitenhalbierenden der Dreiecke Flutlöcher für den Durchtritt der Waschlauge angeordnet sind. Die Anordnung von Flutlöchern in diesem Bereich hat deshalb einen besonderen Vorteil, weil die während des Schleuderns in den Bereich des Trommelmantels getriebene Feuchtigkeit, sobald sie auf der Innenfläche des Trommelmantels ange- kommen ist, von den Bereichen, an denen sich die Noppen berühren, weiter zu denFor laundry drums of washing machines, a further development of the invention is particularly suitable, in which flood holes for the passage of the wash liquor are arranged on the lateral surface between the knobs at the intersection of the bisectors of the triangles. The arrangement of flood holes in this area has a particular advantage because the moisture driven into the area of the drum casing during the spin cycle, as soon as it has reached the inner surface of the drum casing, continues from the areas where the knobs touch to the
Kreuzungspunkten hin getrieben wird, weil die Täler zwischen den Noppen sich zu den Kreuzungspunkten hin erweitern; die Feuchtigkeit kann also nicht an den engsten Stellen stehen bleiben, sondern wird von dort aus zu den weiteren Flächen am Ort der Kreuzungspunkte hin getrieben. In einer weiteren vorteilhaften Ausbildung der Erfindung sind die Flutlöcher zwischen denCrossing points is driven because the valleys between the knobs widen towards the crossing points; So the moisture cannot remain at the narrowest points, but is driven from there to the other areas at the location of the crossing points. In a further advantageous embodiment of the invention, the flood holes between the
Noppen im Kreuzungspunkt der Seitenhalbierenden in wenigstens annähernd kreisförmig gestalteten Arealen angebracht, deren Peripherie Teilstrecken des Umfangs der Noppen kreiseinwärts formen. Dadurch erhöht die gewählte Struktur die Steifigkeit der Mantelfläche. Falls sich die flache Lochung an den zuvor genannten Orten der Kreuzungspunkte dennoch als zu gefährlich für die Wäsche erweisen sollte, ist gemäß einer weiteren besonders vorteilhaften Weiterbildung der Erfindung hier am besten dafür genügend Platz, dass die Flutlöcher in der von der Trommelachse am weitesten entfernten Ebene einer trom- melauswärts gestellten Austulpung angebracht sind. Die Areale auf den Kreuzungspunk- ten sind nämlich groß genug, auch noch eine Austulpung unterzubringen, durch die dieKnobs are attached at the intersection of the bisectors in at least approximately circular areas, the periphery of which forms sections of the circumference of the knobs in a circle. As a result, the selected structure increases the rigidity of the lateral surface. If the flat perforation at the aforementioned points of intersection should nevertheless prove to be too dangerous for the laundry, according to a further particularly advantageous development of the invention, there is best enough space here for the flood holes in the plane furthest away from the drum axis a bulge placed outside the drum. The areas at the crossing points are large enough to accommodate a protuberance through which the
Flutlöcher aus der Ebene des Tommelmantels nach außen zu verbringen, wo sie erfahrungsgemäß am wenigsten von der gegen den Trommelmantel gepressten Wäsche erreicht werden können. Der Minimalabstand der Noppen sollte gemäß empirischer Ermittlung am besten im Verhältnis zu ihrem Durchmesser etwa ein Achtel bis ein Fünfundzwanzigstel betragen. Ein Wert von etwa einem Zehntel hat sich als sehr gut geeignet erwiesen.To spend flood holes from the level of the drum shell to the outside, where experience has shown that they can be reached least by the laundry pressed against the drum shell. According to empirical determination, the minimum distance between the knobs should be about one eighth to one twenty fifth in relation to their diameter. A value of around a tenth has proven to be very suitable.
Wweiterhin sollte die Höhe der Noppen im Verhältnis zu ihren Durchmessern etwa ein Fünftel bis ein Zwanzigstel betragen. Ein Wert von etwa einem Zwölftel hat sich als sehr gut geeignet erwiesen.Furthermore, the height of the knobs in relation to their diameters should be about one fifth to one twentieth. A value of around a twelfth has proven to be very suitable.
Bei der Anordnung der Noppenstruktur auf der Bodenscheibe der Trommel ist die Fortbildung der Erfindung in der Weise besonders vorteilhaft, dass die Fluchtlinien konzentrisch zum Mittelpunkt der Bodenscheibe angeordnet sind und die auf den Fluchtlinien angeord- neten Achsenmuster eine zum Trommelmittelpunkt entsprechend der Verkürzung desIn the arrangement of the knob structure on the bottom disk of the drum, the further development of the invention is particularly advantageous in such a way that the alignment lines are arranged concentrically to the center of the bottom disk and the axis patterns arranged on the alignment lines correspond to the shortening of the center of the drum
Umfangs der jeweiligen Fluchtlinie verkürzte Seitenlinie aufweisen. Damit kann sich eine homogene Struktur von Noppen auf der Bodenscheibe anordnen lassen, die wiederum für die Deckungsgleichheit der Noppenstruktur und dem Lochbild von Vorteil ist.Have a shortened side line around the circumference of the respective escape line. A homogeneous structure of knobs can thus be arranged on the base plate, which in turn is advantageous for the congruence of the knob structure and the hole pattern.
Entsprechend wäre von Vorteil, wenn gemäß einer weiteren vorteilhaften Weiterbildung der Erfindung die Durchmesser der Noppen und/oder die Abstände zwischen ihnen entsprechend der Verkürzung des Umfangs der zugeordneten Fluchtlinie reduziert sind. Dann hat die Struktur der Bodenscheibe über den Vorteil der Deckungsgleichheit zwischen Noppenstruktur und Lochbild hinaus noch den Vorteil, das die Vielzahl von unterschiedlich großen Elementen auf der Bodenscheibe genau so viele einzelne Resonatoren für unterschiedliche Hörfrequenzen bilden, die zwar das Resonanzspektrum sehr stark verbreitern, dafür aber dessen Resonanzamplituden extrem dämpfen.Accordingly, it would be advantageous if, according to a further advantageous development of the invention, the diameter of the knobs and / or the distances between them are reduced in accordance with the shortening of the circumference of the assigned escape line. Then the structure of the base plate has the advantage of congruence between the knob structure and the hole pattern that the large number of differently sized elements on the base plate form just as many individual resonators for different listening frequencies, which broaden the resonance spectrum very much, but in return extremely dampen its resonance amplitudes.
Sofern die Trommel mit auf der Innenfläche des Trommelmantels angesetzten Mitnehmern besetzt ist, kann nach einer weiteren vorteilhaften Ausbildung der Erfindung die Oberfläche der Mitnehmer ebenfalls mit einer Wölbstruktur aus Noppen versehen sein. Dies kann von Vorteil sein für die mechanische Bearbeitung der Wäsche im Waschprogrammabschnitt.If the drum is occupied by drivers attached to the inner surface of the drum jacket, according to a further advantageous embodiment of the invention, the surface of the drivers can also be provided with a domed structure made of knobs. This can be advantageous for the mechanical processing of the laundry in the washing program section.
Anhand von in der Zeichnung dargestellten Ausführungsbeispielen ist die Erfindung nachstehend erläutert. In der Zeichnung zeigenThe invention is explained below on the basis of exemplary embodiments shown in the drawing. Show in the drawing
Fig. 1 eine perspektische Ansicht einer Wäschetrommel, die an ihrem Trommel- mantel und an einer Bodenscheibe mit Noppenstrukturen gemäß der Erfindung versehen ist,1 is a perspective view of a laundry drum, which is provided on its drum shell and on a base plate with knob structures according to the invention,
Fig. 2 einen Ausschnitt aus einer Abwicklung eines mit einer Form der erfindungsgemäßen Noppenstruktur ausgestatteten Trommelmantels mit flehen Flutlöchern, Fig. 3 ein vergrößert dargestellter Querschnitt einer Noppenwölbung entlang einer Schnittlinie HI-HI in Fig. 2,2 shows a detail from a development of a drum casing equipped with a shape of the knob structure according to the invention with pleading flood holes, 3 shows an enlarged cross section of a knob curvature along a section line HI-HI in FIG. 2,
Fig. 4 einen Ausschnitt aus einer Abwicklung eines mit einer anderen Form der erfindungsgemäßen Noppenstruktur als der in Fig. 3 dargestellten Form ausgestatteten Trommelmantels mit tulpenförmig ausgezogenen Flutlöchern,4 shows a detail from a development of a drum casing with a different shape of the knob structure according to the invention than the shape shown in FIG. 3, with tulip-shaped flood holes, FIG.
Fig. 5 ein vergrößert dargestellter Querschnitt einer Noppenwölbung entlang einer Schnittlinie V-V in Fig. 4 undFig. 5 is an enlarged cross section of a knob curvature along a section line V-V in Fig. 4 and
Fig. 6 einen Ausschnitt der Ansicht auf eine Bodenscheibe, die mit einer erfin- dungsgemäßen Noppenstruktur versehen ist.6 shows a detail of the view of a base plate which is provided with a knob structure according to the invention.
Die in Fig. 1 dargestellte Wäschetrommel 1 kann um eine wenigstens annähernd horizontal ausgerichtete Achse 2 gedreht werden. Dazu ist sie mit einem hier nicht dargestellten Antrieb verbunden. Die Frontseite der Trommel 1 ist offen. Sie kann entweder mit einem mitdrehenden Stirnboden verschlossen werden oder auf einem stehenden Stirnboden gelagert sein (beide nicht dargestellt). An der Rückseite ist die Trommel mit einer Bodenscheibe 3 fest verbunden, in die Antriebsmomente einleitbar sind. Die Bodenscheibe hat eine sternförmige Prägung 4, die hier nur teilweise sichtbar ist und der Stabilität der Scheibe dient. Sie kann zusätzlich an ihrer Rückseite mit einem nicht dargestellten Gussstern verstärkt sein. Im Wesentlichen wird die Trommel 1 aber durch den Mantel 5 gebil- det, der aus einem zylindrisch gebogenen und an einer hier nicht sichtbaren Stelle mit einer Verbindungsnaht zusammengehaltenen Blechstreifen besteht.The laundry drum 1 shown in FIG. 1 can be rotated about an at least approximately horizontally oriented axis 2. For this purpose, it is connected to a drive, not shown here. The front of the drum 1 is open. It can either be closed with a rotating end plate or be mounted on a standing end plate (both not shown). At the rear, the drum is firmly connected to a base plate 3, into which drive torques can be introduced. The base plate has a star-shaped embossing 4, which is only partially visible here and serves the stability of the plate. It can also be reinforced on the back with a cast star, not shown. In essence, however, the drum 1 is formed by the jacket 5, which consists of a cylindrically bent sheet metal strip held together at a point not visible here with a connecting seam.
Die Bodenscheibe 3 und die Abwicklung des Trommelmantels 5 sind vor der Verbindung miteinander in einem Prägewerkzeug mit einer Noppenstruktur versehen worden, die weiter unten dargestellt und beschrieben ist. Während die Noppen 6 im Trommelmantel 5 alle gleich groß sind, hat die Bodenscheibe 3 auf ihrem größten Fluchtlinienkreis auch die größten Noppen 8 und auf allen kleineren Fluchtlinienkreisen weiter zum Zentrum hin Noppen 9 bis 15 mit jeweils stufenweis kleineren Durchmessern. Dadurch lassen sich die Noppen 6 auf dem Trommelmantel 5 und die Noppen 8 bis 15 auf der Bodenscheibe 3 jeweils in dreieckiger Anordnung zueinander anbringen, wie weiter unten noch im Einze- lenen erläutert wird.Before being connected to one another, the base plate 3 and the development of the drum shell 5 have been provided with a knob structure in an embossing tool, which is shown and described below. While the knobs 6 in the drum casing 5 are all of the same size, the base plate 3 also has the largest knobs 8 on its largest escape line circle and knobs 9 to 15 on each of the smaller escape line circles towards the center, each with gradually smaller diameters. As a result, the knobs 6 on the drum casing 5 and the knobs 8 to 15 on the base plate 3 can each be arranged in a triangular arrangement with respect to one another, as will be explained in more detail below.
Aus der in Fig. 2 dargestellten Abwicklung eines Teils des Trommelmantels 5 ist ersichtlich, dass die Noppen 6, die aus einer kugelkalottenartig trommeleinwärts gezogenen Prägung bestehen (vgl. Fig. 3), auf den Schnittpunkten eines regelmäßig vieleckigen Achsenmusters, nämlich eines dreieckigen Achsenmusters, angeordnet sind. Dieses Achsenmuster wird durch die Fluchtlinie 16 und die anderen beiden Achsen 17 und 18 bestimmt, von denen die Fluchtlinie 16 parallel zur Außenkante 19 des Trommelmantel- Blechstreifens liegt. Die beiden Achsen 17 und 18 liegen jeweils um 60° nach links bzw. um 60° nach rechts zur Fluchtlinie 16 verdreht. Alle Achsen haben entsprechend parallel zueinander angeordnete Duplikate, die alle untereinander denselben Abstand haben. Auf diese Weise bildet sich eine Vielzahl von gleichseitigen Dreiecken, von denen eines (20) hier schattiert dargestellt ist, deren Ecken E, F und G zugleich die Schnittpunkte der Achsen 16, 17 und 18 bzw. 18-2 sind. Die Seitenhalbierenden 21 dieser Dreiecke kreuzen sich im Schwerpunkt der Dreiecke, der zugleich der Kreuzungspunkt 22 und der Ort ist, auf dem jeweils ein Flutloch 23 angeordnet ist. Durch diese Gestaltung ergeben sich zwischen den Noppen 6 unter den Schwerpunkten der Dreiecke E, F, G - hier ebenfalls dreieckige - Areale 24, die für die Anordnung genügend großer Flutlöcher 23 großflächig genug sind, ohne dass die Flutlöcher, selbst wenn sie wegen eines möglichen Versatzes zwischen dem Lochbild und der Noppenstruktur nicht ganz zentrisch liegen, die Umfangslinien der Noppen 6 zerschneiden würden. Dies fördert die Steifigkeit des so strukturierten Trommelmantels 5 bzw. der Bodenscheibe 3; denn durch das Zerschneiden der Peripherie-Linien der Wölbstruktur-Elemente beim Stand der Technik wird deren Knicksteifigkeit an der Schnittstelle unterbrochen. Aus Fig. 3 ist dieser Sachverhalt sehr deutlich zu erkennen.From the development of a part of the drum casing 5 shown in FIG. 2 it can be seen that the knobs 6, which consist of an embossment drawn in the manner of a spherical cap (see FIG. 3), on the intersections of a regularly polygonal axis pattern, namely a triangular axis pattern, are arranged. This axis pattern is defined by the alignment line 16 and the other two axes 17 and 18 determined, of which the escape line 16 is parallel to the outer edge 19 of the drum jacket sheet metal strip. The two axes 17 and 18 are each rotated by 60 ° to the left or by 60 ° to the right to the escape line 16. Accordingly, all axes have duplicates arranged parallel to one another, all of which have the same distance from one another. In this way, a large number of equilateral triangles are formed, one of which (20) is shown shaded here, the corners E, F and G of which are also the intersection points of the axes 16, 17 and 18 or 18-2. The bisectors 21 of these triangles intersect in the center of gravity of the triangles, which is also the crossing point 22 and the location on which a flood hole 23 is arranged in each case. This design results in areas 24 between the knobs 6 under the focal points of the triangles E, F, G - here also triangular - which are large enough for the arrangement of sufficiently large flood holes 23 without the flood holes, even if they are because of a possible one Misalignment between the hole pattern and the knob structure are not quite central, the circumferential lines of the knobs 6 would cut. This promotes the rigidity of the drum shell 5 or the base plate 3 structured in this way; because the cutting of the peripheral lines of the arch structure elements in the prior art interrupts their buckling stiffness at the interface. This fact can be seen very clearly from FIG. 3.
Aus Versuchen hat sich ermitteln lassen, dass der Abstand A der Noppen 6 untereinan- der auf etwa ein Achtel bis ein Fünfundzwanzigstel, vorzugsweise auf ein Zehntel, ihrerExperiments have shown that the distance A between the knobs 6 is about one eighth to one twenty fifth, preferably one tenth, of theirs
Durchmesser bemisst. Auch die für das Optimum hinsichtlich der besten Waschwirkung einerseits und zugleich der größten Wäscheschonung beim Schleudern andererseits bedeutende Höhe H der Noppen 6 ist auf diese Weise gefunden worden, nämlich zu einem Fünftel bis einem Zwanzigstel, vorzugweise zu einem Zwölftel des Durchmessers der Noppen. Für die Findung des Optimums im Hinblick auf die Wäscheschonung beimMeasured diameter. The height H of the knobs 6, which is significant for the best washing effect on the one hand and at the same time the greatest laundry protection when spinning on the other hand, has been found in this way, namely to a fifth to a twentieth, preferably to a twelfth of the diameter of the knobs. For finding the optimum in terms of gentle laundry care
Schleudern geht natürlich auch der Durchmesser D der Flutlöcher ein, der im dargestellten Beispiel etwa 3,5 mm betragen kann. Dieser Wert steht auch für eine gute Flüssigkeitsabführung, die durch die gute Drainage zwischen den Noppen 6 unterstützt wird.The diameter D of the flood holes is of course also spun, which in the example shown can be approximately 3.5 mm. This value also stands for good fluid drainage, which is supported by the good drainage between the knobs 6.
Das in Fig. 4 und 5 dargestellte Beispiel für die Gestaltung des Mantelbleches 5 ist im Hinblick auf die Noppenstruktur und die Anordnung der Flutlöcher gleich dem Beispiel gemäß Fig. 2 und 3. Die Ausgestaltung der Flutlöcher verbessert jedoch die Wäscheschonung beim Schleudern. Dazu sind die Flutlöcher 25 in den dreieckigen Arealen 24 zwischen den Noppen 6 in einer Bodenebene 26 (Fig. 5) von tulpenartig nach außen gezogenen Senken 27 angeordnet. Hierdurch wird es den beim Schleudern sich zwischen die Noppen 6 legenden Wäschestücken schwer, in die Senken 27 so weit einzudringen, dass die Flutlöcher 25 überhaupt nur erreicht werden; geschweige denn, dass die Wä- sehe sie auch noch durchdringen könnte, um so den gefährlichen Grat am Außenrand der Löcher 25 zu erreichen.The example shown in FIGS. 4 and 5 for the design of the cladding sheet 5 is the same as the example according to FIGS. 2 and 3 with regard to the knob structure and the arrangement of the flood holes. For this purpose, the flood holes 25 are arranged in the triangular areas 24 between the knobs 6 in a floor plane 26 (FIG. 5) of depressions 27 drawn outward like tulips. This makes it difficult for the items of laundry lying between the knobs 6 during the spin to penetrate into the depressions 27 to such an extent that the flood holes 25 can only be reached at all; let alone that the laundry see it could also penetrate so as to reach the dangerous ridge on the outer edge of holes 25.
Dieses Beispiel macht deutlich, warum die erfindungsgemäße kreis-, ellipsenförmige oder ovale Noppenstruktur im Gegensatz zum Stand der Technik so große Vorteile hat: die an den Schnittpunkten E, F, G gebildeten großen dreieckigen Areale 24 geben Raum für dieThis example makes it clear why the circular, elliptical or oval knob structure according to the invention has such great advantages in contrast to the prior art: the large triangular areas 24 formed at the intersection points E, F, G provide space for the
Anbringung genügend großer Flutlöcher 25, ja sogar für zusätzliche Senken 27 für die Flutlöcher 25, ohne dass dadurch etwa die Umfangslinien der Wölbstruktur-Elemente 6 zerschnitten würden.Attachment of sufficiently large flood holes 25, even for additional depressions 27 for the flood holes 25, without thereby cutting the circumferential lines of the arched structure elements 6.
Das in Fig. 6 dargestellte Beispiel für eine Noppenstruktur zeigt einen Ausschnitt aus dem Blech einer Bodenscheibe 3 (Fig.1). Der äußere Rand 28 der Bodenscheibe 3 ist zugleich die äußere Begrenzung derjenigen Fläche, auf der die Noppenstruktur anbringbar ist. Die innere Begrenzung dieser Fläche wird durch die Linie 29 festgesetzt. Die Grundstruktur der Noppenanordnung und des Lochbildes entspricht derjenigen in den Figuren 2 und 4.The example of a knob structure shown in FIG. 6 shows a section of the sheet metal of a base plate 3 (FIG. 1). The outer edge 28 of the base plate 3 is also the outer boundary of the surface on which the knob structure can be attached. The inner boundary of this area is defined by line 29. The basic structure of the knob arrangement and the hole pattern corresponds to that in FIGS. 2 and 4.
Allerdings sind hier die Fluchtlinie 30-1 und alle ihre inneren Parallelen 30-2, 30-3 usw. entsprechend der Achse 16 in Fig. 2 in paralleler Lage zum Außenrand 28 konzentrisch kreisförmig. Entsprechend sind die anderen Achsen 31 und 32 - nach rechts bzw. nach links jeweils um 60° gegen die Fluchtlinie 30-1 verdreht - gegen den Kreismittelpunkt hin gekrümmt, so dass sich die Seitenlinien der aus ihnen gebildeten Dreiecke mit zunehmender Nähe zum Kreismittelpunkt verkürzen, der auf einem fern liegenden Kreuzungs- punkt M der beiden eingezeichneten Radiuslinien R liegt. Das bedeutet, dass die Seitenlinie F-K des weiter innen liegenden Dreiecks F, K, L kürzer ist als die Seitenlinie E-F des weiter außen liegenden Dreiecks E, F, G. Entsprechendes gilt auch für die anderen jeweils vergleichbaren Seitenlinien. Außerdem sind auch die Durchmesser der Noppen 6 mit zunehmender Nähe zum Kreismittelpunkt M kleiner, weil die jeweils innere Fluchtli- nie 30-2 kürzer ist als die jeweils äußere (30-1) und dadurch für dieselbe Anzahl vonHowever, here the alignment line 30-1 and all of its inner parallels 30-2, 30-3 etc. are concentrically circular in accordance with the axis 16 in FIG. 2 in a position parallel to the outer edge 28. Correspondingly, the other axes 31 and 32 - rotated 60 ° to the right and to the left against the alignment line 30-1 - are curved toward the center of the circle, so that the side lines of the triangles formed from them shorten with increasing proximity to the center of the circle, which lies on a distant crossing point M of the two radius lines R drawn. This means that the side line F-K of the triangle F, K, L lying further inside is shorter than the side line E-F of the triangle E, F, G lying further outside. The same also applies to the other comparable side lines. In addition, the diameters of the knobs 6 are smaller with increasing proximity to the center of the circle M, because the inner alignment line 30-2 is shorter than the outer one (30-1) and therefore for the same number of
Noppen 6 nur noch weniger Strecke zur Verfügung steht. Dadurch erklärt sich auch die beschriebene Verkürzung der Seitenlinien der Dreiecke und die Krümmung der Achsen 31 und 32.Noppen 6 only less distance is available. This also explains the shortening of the side lines of the triangles and the curvature of the axes 31 and 32.
Sofern in der Wäschetrommel gemäß Fig. 1 hier nicht dargestellte Mitnehmer zum Heben der Wäsche während der Trommeldrehung angeordnet sind, können auch die in Trommelinnere weisenden Oberflächen dieser Mitnehmer mit einer entsprechenden Noppenstruktur ausgebildet sein. Dies kann für die mechanische Bearbeitung der Wäsche in gewisser Weise vorteilhaft sein.If, in the laundry drum according to FIG. 1, drivers (not shown here) for lifting the laundry during the rotation of the drum are arranged, the surfaces of these drivers facing inside the drum can also be designed with a corresponding knob structure. This can be somewhat advantageous for the mechanical processing of the laundry.
Die Erfindung ist nicht auf die hier dargestellten Achsenmuster beschränkt. Weitere re- gelmäßige Achsenmuster sind für die Lösung der gleichen Aufgabe denkbar. So kann beispielsweise eine rechteckige oder speziellerweise quadratische Anordnung der Achsen durchaus von Vorteil sein. Dann könnten in den qadratischen Arealen zwischen den Noppen unter Umständen weitere Flutlöcher angebracht sein oder eine Mischung aus flachen und ausgetulpten Flutlöchern. Auch Mischformen von unterschiedlich regelmäßigen Achsenmustern sind anwendbar. Ferner ist diese Art der Wölbstruktur auch bei Wäschetrommeln für Wäschetrockner anwendbar. The invention is not restricted to the axis patterns shown here. Further regular axis patterns are conceivable for solving the same task. So can For example, a rectangular or, specifically, square arrangement of the axes can be quite advantageous. Then there might be additional flood holes in the square areas between the knobs or a mixture of flat and bulging flood holes. Mixed forms of differently regular axis patterns can also be used. Furthermore, this type of arch structure can also be used in laundry drums for tumble dryers.

Claims

Patentansprüche claims
1. Trommel (1) für eine Waschebehandlungsmaschine, wobei die Trommel in- nerhalb des Gehäuses der Waschebehandlungsmaschine drehbar gelagert ist und mindestens eine Bodenscheibe (3) sowie einen Mantel (5) aufweist, die jede mindestens teilweise aus Blech bestehen und einzeln oder beide mit einer zum Trommelinneren gerichteten Wölbstruktur versehen sind, dadurch gekennzeichnet, dass die Wölbstruktur aus zum Trommelinneren hin gerich- teten Noppen (6) besteht, deren Ränder im wesentlichen kreis- oder ellipsen- förmig oder oval ausgebildet sind.1. drum (1) for a washing treatment machine, the drum being rotatably mounted within the housing of the washing treatment machine and having at least one base plate (3) and a jacket (5), each of which at least partially consists of sheet metal and individually or both with a domed structure directed towards the interior of the drum, characterized in that the domed structure consists of knobs (6) directed towards the interior of the drum, the edges of which are essentially circular or elliptical or oval.
2. Trommel nach Anspruch 1 , dadurch gekennzeichnet, dass die Noppen (6) in den Schnittpunkten (E, F, G) eines regelmäßig vieleckigen Achsenmusters (16, 17, 18) angeordnet sind.2. Drum according to claim 1, characterized in that the knobs (6) in the intersection points (E, F, G) of a regularly polygonal axis pattern (16, 17, 18) are arranged.
3. Trommel nach Anspruch 2, dadurch gekennzeichnet, dass das Achsenmuster (16, 17, 18) auf der Mantelfläche (5) eine Vielzahl von aneinander grenzenden, gleichseitigen Dreiecken (E-F-G) enthält.3. Drum according to claim 2, characterized in that the axis pattern (16, 17, 18) on the outer surface (5) contains a plurality of adjacent, equilateral triangles (E-F-G).
4. Trommel nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Fluchtlinien (16, 30-1, 30-2, 30-3) des Achsenmusters (16,17,18 bzw. 30, 31, 32) der Form der Außenkante (19, 28) des Mantels (5) bzw. des Bodens (3) folgen, d. h. dass sie beispielsweise gerade oder kreisförmig sind.4. Drum according to claim 2 or 3, characterized in that the alignment lines (16, 30-1, 30-2, 30-3) of the axis pattern (16, 17, 18 or 30, 31, 32) of the shape of the outer edge (19, 28) of the jacket (5) or the bottom (3) follow, d. H. for example, that they are straight or circular.
5. Trommel nach einem der Ansprüche 2 bis 4 für eine Wasch- oder Wasch- Trocken-Maschine, dadurch gekennzeichnet, dass auf der Mantelfläche (5) zwischen den Noppen (6) im Kreuzungspunkt (22) der Seitenhalbieren- den (21 ) der Dreiecke (E-F-G) Flutlöcher (23) für den Durchtritt der Waschlauge angeordnet sind.5. Drum according to one of claims 2 to 4 for a washing or washing-drying machine, characterized in that on the lateral surface (5) between the knobs (6) at the crossing point (22) of the side halves (21) of the Triangles (EFG) flood holes (23) are arranged for the passage of the wash liquor.
6. Trommel nach Anspruch 5, dadurch gekennzeichnet, dass die Flutlöcher (23) zwischen den Noppen (6) im Kreuzungspunkt (22) der Seitenhalbierenden (21) in wenigstens annähernd kreisförmig gestalteten Arealen (24) angebracht sind, de- ren Peripherie Teilstrecken des Umfangs der Noppen (6) kreiseinwärts formen. 6. Drum according to claim 5, characterized in that the flood holes (23) between the knobs (6) at the intersection (22) of the bisectors (21) are arranged in at least approximately circular areas (24), the periphery of which sections Shape the circumference of the knobs (6) in a circle.
7. Trommel nach Anspruch 6, dadurch gekennzeichnet, dass die Flutlöcher (23) in der von der Trommelachse (2) am weitesten entfernten Ebene (26) einer trommelauswärts gestellten Austulpung (27) angebracht sind.7. Drum according to claim 6, characterized in that the flood holes (23) in the most distant from the drum axis (2) plane (26) of a drum outward protuberance (27) are made.
8. Trommel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Minimalabstand (A) zwischen den Noppen (6) im Verhältnis zu ihrem8. Drum according to one of the preceding claims, characterized in that the minimum distance (A) between the knobs (6) in relation to it
Durchmesser etwa ein Achtel bis ein Fünfundzwanzigstel beträgt.Diameter is approximately one eighth to one twenty-fifth.
9. Trommel nach Anspruch 8, dadurch gekennzeichnet, dass der Abstand (A) etwa ein Zehntel beträgt.9. Drum according to claim 8, characterized in that the distance (A) is approximately one tenth.
10. Trommel nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Hö- he (H) jedes Noppens (6) im Verhältnis zu seinem Durchmesser etwa ein10. Drum according to claim 8 or 9, characterized in that the height (H) of each knob (6) in relation to its diameter is approximately one
Fünftel bis ein Zwanzigstel beträgt.Fifth to one twentieth.
11. Trommel nach Anspruch 10, dadurch gekennzeichnet, dass die Höhe (H) etwa ein Zwölftel beträgt.11. Drum according to claim 10, characterized in that the height (H) is approximately one twelfth.
12. Trommel nach Anspruch 4 mit einer mit Wölbstruktur versehenen Boden- scheibe (3), dadurch gekennzeichnet, dass die Fluchtlinien (30-1 , 30-2, 30-3) konzentrisch zum Mittelpunkt (M) der Bodenscheibe (3) angeordnet sind und die auf den Fluchtlinien (30-1 , 30-2, 30-3) angeordneten Achsenmuster (30, 31 , 32) eine zum Mittelpunkt (M) der Bodenscheibe (3) entsprechend der Verkürzung des Umfangs der jeweiligen Fluchtlinie (30-1 , 30-2, 30-3) verkürzte Seitenlinie (F-K) aufweisen.12. Drum according to claim 4 with a base plate (3) provided with a vaulted structure, characterized in that the alignment lines (30-1, 30-2, 30-3) are arranged concentrically with the center point (M) of the base plate (3) and the axis patterns (30, 31, 32) arranged on the alignment lines (30-1, 30-2, 30-3) one to the center point (M) of the base plate (3) in accordance with the shortening of the circumference of the respective alignment line (30-1 , 30-2, 30-3) have a shortened side line (FK).
13. Trommel nach Anspruch 8 oder 9 und 12, dadurch gekennzeichnet, dass die Durchmesser der Noppen (6) und/oder die Abstände (A) zwischen ihnen entsprechend der Verkürzung des Umfangs der zugeordneten Fluchtlinie (30-2) reduziert sind.13. Drum according to claim 8 or 9 and 12, characterized in that the diameter of the knobs (6) and / or the distances (A) between them are reduced in accordance with the shortening of the circumference of the assigned escape line (30-2).
14. Trommel nach einem der vorstehenden Ansprüche mit auf der Innenfläche des Trommelmantels (5) angesetzten Mitnehmern, dadurch gekennzeichnet, dass die Oberfläche der Mitnehmer ebenfalls mit einer Wölbstruktur aus Noppen versehen ist. 14. Drum according to one of the preceding claims with on the inner surface of the drum shell (5) attached drivers, characterized in that the surface of the drivers is also provided with a domed structure of knobs.
PCT/EP2002/009352 2001-12-20 2002-08-21 Drum for a linen processing machine with a domed structure directed toward the inside of said drum WO2003054275A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR1020047009178A KR100887857B1 (en) 2001-12-20 2002-08-21 Drum for a linen processing machine with a domed structure directed toward the inside of said drum
EP02805270A EP1458919B1 (en) 2001-12-20 2002-08-21 Drum for a linen processing machine with a domed structure directed toward the inside of said drum
CN028258592A CN1608157B (en) 2001-12-20 2002-08-21 Drum for a linen processing machine with a domed structure directed toward the inside of said drum
PL368845A PL197941B1 (en) 2001-12-20 2002-08-21 Drum for a linen processing machine with a domed structure directed toward the inside of said drum
AT02805270T ATE500373T1 (en) 2001-12-20 2002-08-21 DRUM FOR A LAUNDRY TREATMENT MACHINE HAVING A CURVED STRUCTURE DIRECTED TOWARD THE INSIDE OF THE DRUM
DE50214939T DE50214939D1 (en) 2001-12-20 2002-08-21 DRUM-INNER TARGETING STRUCTURE

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WO2008077394A2 (en) * 2006-12-22 2008-07-03 Dr. Mirtsch Gmbh Structured material web having a multi-dimensional structure, and method for the production thereof
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ITMC20090059A1 (en) * 2009-03-20 2010-09-21 Qs Group S P A HEADBAND FOR WASHING MACHINE BASKET, WASHING MACHINE AND DRYER AND ITS PRODUCTION EQUIPMENT.
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DE102009057097A1 (en) 2009-12-04 2011-06-09 Hans-Kilian Fremmer Shoe has enforced hexagonal bulge structure designed in partial or complete manner
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DE102009055844A1 (en) 2009-11-26 2011-06-22 Fremmer, Hans-Kilian, 97980 Package, has totally or partly forced hexagonal baggy structure and different layers, where each layer consists of hexagonal bumps or one layer that lie at interior is provided with hexagonal baggy structure
DE102009058499A1 (en) 2009-12-16 2011-07-21 Fremmer, Hans Kilian, 97980 Solar collector e.g. thermal collector for creation of thermal energy, has surface designed in large-type, where collector exhibits complete, partial or hexagonal baggy structure at outer lying layer
EP2386677A1 (en) 2010-10-14 2011-11-16 Primus CE s.r.o. Drum of washing machine
EP2455531A1 (en) 2010-11-23 2012-05-23 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. A drum surface for washing machines
DE102010023364A1 (en) 2010-06-10 2012-07-26 Hans-Kilian Fremmer Plastic toilet comprises several hexagonal dents or honeycomb dents that are arranged in lattice form
DE102011009687A1 (en) 2011-01-28 2012-08-02 Hans Kilian Fremmer Beverage container crate has honeycomb-shaped hexagonal baggy structure which is formed entirely or partially
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DE102014000083A1 (en) * 2014-01-02 2015-07-02 Dr. Mirtsch Gmbh Method for partially three-dimensional structuring of a material web and for secondary forming of the material web, three-dimensionally structured material web with planar partial regions, use of the same and an apparatus for producing the same
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DE102013017644B4 (en) * 2012-10-25 2017-09-21 Dr. Mirtsch Gmbh Method for producing a multi-dimensionally structured material web and use thereof
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PL2474659T3 (en) 2011-01-11 2013-04-30 Miele & Cie Drum with curved structure for a washing machine
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WO2007060455A3 (en) * 2005-11-25 2007-12-21 Andrew Reason Ltd Washing appliance
WO2007077075A1 (en) * 2005-12-28 2007-07-12 BSH Bosch und Siemens Hausgeräte GmbH Laundry drum
US8181355B2 (en) 2005-12-28 2012-05-22 Bsh Bosch Und Siemens Hausgeraete Gmbh Laundry drum
EA014788B1 (en) * 2005-12-28 2011-02-28 Бсх Бош Унд Сименс Хаусгерете Гмбх Laundry drum
WO2008077394A2 (en) * 2006-12-22 2008-07-03 Dr. Mirtsch Gmbh Structured material web having a multi-dimensional structure, and method for the production thereof
WO2008077394A3 (en) * 2006-12-22 2008-09-18 Mirtsch Gmbh Dr Structured material web having a multi-dimensional structure, and method for the production thereof
JP2010513070A (en) * 2006-12-22 2010-04-30 ドクトル ミルチュ ゲゼルシャフト ミット ベシュレンクテル ハフツング Structured material web having a multidimensional structure and method for producing this material web
US8752292B2 (en) 2006-12-22 2014-06-17 Dr. Mirtsch Gmbh Structured material web having a multi-dimensional structure, and method for the production thereof
US8438883B2 (en) 2007-02-28 2013-05-14 Samsung Electronics Co., Ltd. Washing machine improving washing efficiency
EP2177657A1 (en) * 2008-10-16 2010-04-21 Miele & Cie. KG Drum for a washing machine
ITMC20090059A1 (en) * 2009-03-20 2010-09-21 Qs Group S P A HEADBAND FOR WASHING MACHINE BASKET, WASHING MACHINE AND DRYER AND ITS PRODUCTION EQUIPMENT.
DE102009048962A1 (en) 2009-10-10 2011-04-14 Hans Kilian Fremmer Sponge has totally or partly forced hexagonal baggy structure which is simple
DE102009052912A1 (en) 2009-11-12 2011-05-26 Hans Kilian Fremmer Metallic component for bicycle, has grid of hexagonal bulge parts made of natural materials and provided in honeycomb structure or tortoise shell structure
DE102009055844A1 (en) 2009-11-26 2011-06-22 Fremmer, Hans-Kilian, 97980 Package, has totally or partly forced hexagonal baggy structure and different layers, where each layer consists of hexagonal bumps or one layer that lie at interior is provided with hexagonal baggy structure
DE102009057097A1 (en) 2009-12-04 2011-06-09 Hans-Kilian Fremmer Shoe has enforced hexagonal bulge structure designed in partial or complete manner
DE102009057096A1 (en) 2009-12-04 2011-06-16 Hans Kilian Fremmer Pan, particularly frying pan, has hexagonal honeycomb structure depending on material, size and depth
DE102009057190A1 (en) 2009-12-05 2013-04-11 Hans Kilian Fremmer Wind energy generator for use at e.g. roadside, has main portion that is provided with hexagonal bag structure and rotating elements
DE102009058499A1 (en) 2009-12-16 2011-07-21 Fremmer, Hans Kilian, 97980 Solar collector e.g. thermal collector for creation of thermal energy, has surface designed in large-type, where collector exhibits complete, partial or hexagonal baggy structure at outer lying layer
CN102884238A (en) * 2010-04-01 2013-01-16 伊莱克斯家用产品股份有限公司 Rotatable drum for laundry washing machines and assembly method of the rotatable drum
CN102884238B (en) * 2010-04-01 2016-08-03 伊莱克斯家用产品股份有限公司 Rotatable drum and the assemble method of rotatable drum for washing machine
CZ302335B6 (en) * 2010-05-03 2011-03-16 Primus Ce S.R.O. Washing machine drum
DE102010023364A1 (en) 2010-06-10 2012-07-26 Hans-Kilian Fremmer Plastic toilet comprises several hexagonal dents or honeycomb dents that are arranged in lattice form
US8887540B2 (en) 2010-07-28 2014-11-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Laundry drum for a laundry treatment machine
EP2386677A1 (en) 2010-10-14 2011-11-16 Primus CE s.r.o. Drum of washing machine
EP2455531A1 (en) 2010-11-23 2012-05-23 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. A drum surface for washing machines
DE102011009687A1 (en) 2011-01-28 2012-08-02 Hans Kilian Fremmer Beverage container crate has honeycomb-shaped hexagonal baggy structure which is formed entirely or partially
DE102012009164A1 (en) 2012-05-03 2013-11-07 Hans Kilian Fremmer Cathode plate for fuel cell of automotive vehicle, has hexagonal honeycomb structure for accommodating hydrogen and oxygen, where honeycomb structure is made of metallic material
DE102012009413A1 (en) 2012-05-11 2013-11-14 Hans Kilian Fremmer Cathode plate for use in lead rechargeable battery of motor car, has partly porous surface and baggy structure, where plate is dipped in diluted sulfur-acid solution and separated at cathode metallic lead
CN102912592A (en) * 2012-09-29 2013-02-06 海尔集团公司 Inner barrel of fully automatic washing machine and washing machine utilizing inner barrel
US9863079B2 (en) 2012-10-10 2018-01-09 Samsung Electronics Co., Ltd. Washing machine having a plurality of concentrically formed recessed portions on the tub
EP2719809A3 (en) * 2012-10-10 2015-08-05 Samsung Electronics Co., Ltd Washing machine
EP2719808A1 (en) * 2012-10-10 2014-04-16 Samsung Electronics Co., Ltd Washing machine
DE102013017644B4 (en) * 2012-10-25 2017-09-21 Dr. Mirtsch Gmbh Method for producing a multi-dimensionally structured material web and use thereof
DE102014000083A1 (en) * 2014-01-02 2015-07-02 Dr. Mirtsch Gmbh Method for partially three-dimensional structuring of a material web and for secondary forming of the material web, three-dimensionally structured material web with planar partial regions, use of the same and an apparatus for producing the same
DE102014000083B4 (en) * 2014-01-02 2017-12-07 Dr. Mirtsch Gmbh Method for producing a partially three-dimensional vault-shaped structured material web, partially three-dimensional vault-shaped structured material web, use of the same and a device for producing the same
EP3412823A1 (en) * 2017-06-08 2018-12-12 LG Electronics Inc. Drum of laundry machine
US20180355538A1 (en) * 2017-06-08 2018-12-13 Lg Electronics Inc. Drum of washing machine
AU2018281250B2 (en) * 2017-06-08 2020-11-26 Lg Electronics Inc. Drum of laundry machine
US11519119B2 (en) 2017-06-08 2022-12-06 Lg Electronics Inc. Drum of washing machine
DE102021200987A1 (en) 2021-02-03 2022-08-04 BSH Hausgeräte GmbH Method for producing a laundry drum with a precise positioning of an embossed structure and flood holes relative to one another, and laundry drum

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DE10162918A1 (en) 2003-07-03
ATE500373T1 (en) 2011-03-15
PL197941B1 (en) 2008-05-30
RU2004116279A (en) 2006-01-10
DE50214939D1 (en) 2011-04-14
KR20040068235A (en) 2004-07-30
PL368845A1 (en) 2005-04-04
EP1458919B1 (en) 2011-03-02
CN1608157A (en) 2005-04-20
EP1458919A1 (en) 2004-09-22
RU2297478C2 (en) 2007-04-20
KR100887857B1 (en) 2009-03-09

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