EP1433889A1 - Washing machine drum with ribs and process to produce the cylindrical portion of such a washing machine drum - Google Patents
Washing machine drum with ribs and process to produce the cylindrical portion of such a washing machine drum Download PDFInfo
- Publication number
- EP1433889A1 EP1433889A1 EP03104223A EP03104223A EP1433889A1 EP 1433889 A1 EP1433889 A1 EP 1433889A1 EP 03104223 A EP03104223 A EP 03104223A EP 03104223 A EP03104223 A EP 03104223A EP 1433889 A1 EP1433889 A1 EP 1433889A1
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- Prior art keywords
- drum
- washing machine
- jacket
- ribs
- scoop
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
- D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
- D06F37/065—Ribs, lifters, or rubbing means forming part of the receptacle ribs or lifters having means for circulating the washing liquid
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
Definitions
- the invention relates to a washing machine drum, which in the interior of a tub an at least approximately horizontal axis is rotatably mounted and a hollow cylindrical one Has jacket and two top surfaces, with an opening in the jacket or one of the top surfaces is arranged to hold laundry, arranged on the inside of the drum shell Scooping ribs, which are designed as separate components and so on the drum shell are attached so that at least their axially directed edge area rests on the drum shell, and which extend at least approximately parallel to the drum axis. Furthermore
- the invention relates to a method for producing the jacket of such a washing machine drum.
- the washing machines manufactured and sold by the applicant known to form the scoop ribs as separate, open on the sides bent parts made of sheet metal. They are attached to the drum shell by means of a fold connection and extend across the entire width of the drum shell from one top surface of the drum to the other. To close gaps between the side edges of the scoop ribs and the top surfaces avoid, the ribs are carried by longitudinally executed studs with the top surfaces of the Tensioned drum. These stud bolts also serve to fasten a bearing cross on the drum, which carries a bearing journal. This ensures a high strength of the overall structure achieved, which also holds together reliably for drum speeds up to 1800 min-1 of the individual components guaranteed.
- a similar structure of a scoop rib is known from DE 38 25 377 A1 (see FIGS. 1 and 2). In this embodiment very many individual components are required, which must be manufactured and assembled.
- a washing machine drum is known from EP 0 806 513 A2, in which the scoop rib is formed by folding from the sheet of the drum shell and thereby the one piece Forms part.
- the invention thus presents the problem of a washing machine drum of the type mentioned to disclose at which the height of the scoop ribs with the same scoop volume or the same portability can be reduced.
- this problem is solved by a washing machine drum in which the drum jacket in the entire area below the edge area of the scoop ribs reduced diameter compared to the area outside the scoop ribs and thereby has elevations directed into the interior of the drum.
- An advantage that can be achieved with the invention is that its height structure is reduced Rib can be manufactured more easily and less material is used to manufacture it. Another advantage results from the fact that the elevation forms a ramp which is in front of the usual gap or crease, which is between separate ribs the rib flank and the drum jacket. Through the seamless survey when the drum rotates, a water wave is generated which is pressed into the laundry and thus contributes to their faster moisture penetration. In addition, the laundry is collected already gently raised and moving more easily over the gap or described above Kink, which creates a gentle effect.
- the drum jacket is in an area below the Provide scoop ribs with inlet openings and this area has approximately the same Diameter like the area outside the scoop ribs. This creates the scooping volume enlarged and the scoop openings in the drum jacket are in a better effective range laid on its outer circumference.
- the elevations have a trapezoidal cross section.
- surveys of this cross section are very easy to do finished.
- the scoop ribs except for any outlet openings have a trough-shaped surface contour that is closed on all sides and are in Only extend in the longitudinal direction over a partial area of the drum shell, so that the elevations form a closed frame. This will close gaps between the Side surfaces of the scoop ribs and the top surfaces of the drum avoided.
- the invention also has the problem of a method for producing the jacket to disclose a washing machine drum of the type mentioned.
- this problem is solved by a manufacturing method in which a cylindrical, possibly perforated sheet metal part expanded to a larger radius is, whereby at least those areas are left that are in the finished Drum casing located below the edge areas of the scoop ribs.
- the connecting seam is of the cylindrical sheet metal part in a flank arranged under a scoop rib Survey ordered. In this way, the connection seam is for the user of the washing machine not visible, and contact with the laundry is avoided.
- scoop ribs (2) on the jacket (1) attached which, apart from outlet openings (21), has a trough-shaped surface contour which is closed on all sides own and in the longitudinal direction only over a partial area of the drum casing extend (see Figure 3).
- the scoop ribs (2) are made from sheet metal using a deep-drawing process manufactured and have a height of approx. 30 mm. They are attached by the Folded connection (not shown) known from DE 38 25 377 A1, for the connecting tabs at the rib edges (22) in slots in the drum jacket (1) and then be bent. After completion, the drum shell is made with an annular Cap (3) and a circular bottom (4) connected.
- the rounded cylinder is expanded to the final shape of the drum casing (1) through a mechanical expansion process.
- the cylinder is only in parts (12, 13) pressurized from the inside, so that its diameter increases by approx. 20 mm there becomes.
- a rectangular frame in a jacket zone below the edge area (22) of the Ladle ribs (2) are left out during expansion.
- the area (13) that the inlet openings (11) surrounds under the scoop ribs (2) is also expanded in the same way, form the unexpanded areas in the drum jacket elevations directed into the interior of the drum (14) with a closed, rectangular contour.
- the elevations (14) have one trapezoidal cross-section.
- the cylinder is placed in the expander so that its connecting seam (15) on a flank (141) directed into the inside of the scoop ribs Elevation (14) lies, whereby the seam after installation of the scoop rib (2) is hidden by it becomes.
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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)
Abstract
Description
Die Erfindung betrifft eine Waschmaschinentrommel, die im Inneren eines Laugenbehälters um eine wenigstens annähernd horizontale Achse drehbar gelagert ist und einen hohlzylindrischen Mantel und zwei Deckflächen besitzt, wobei im Mantel oder einer der Deckflächen eine Öffnung zur Aufnahme von Wäsche angeordnet ist, mit an der Innenseite des Trommelmantels angeordneten Schöpfrippen, welche als separate Bauteile ausgebildet und derart am Trommelmantel befestigt sind, dass wenigstens ihr axial gerichteter Randbereich am Trommelmantel anliegt, und welche sich wenigstens annähernd parallel zur Trommelachse erstrecken. Darüber hinaus betrifft die Erfindung ein Verfahren zur Herstellung des Mantels einer solchen Waschmaschinentrommel.The invention relates to a washing machine drum, which in the interior of a tub an at least approximately horizontal axis is rotatably mounted and a hollow cylindrical one Has jacket and two top surfaces, with an opening in the jacket or one of the top surfaces is arranged to hold laundry, arranged on the inside of the drum shell Scooping ribs, which are designed as separate components and so on the drum shell are attached so that at least their axially directed edge area rests on the drum shell, and which extend at least approximately parallel to the drum axis. Furthermore The invention relates to a method for producing the jacket of such a washing machine drum.
Bei bekannten Waschmaschinentrommeln wird die mechanische Einwirkung auf die Wäsche dadurch erhöht, dass sie über den Wasserspiegel im Laugenbehälter angehoben wird. Außerdem wird die Durchflutung der Wäsche durch Berieselung mit Waschlauge von oben verbessert. Zu diesen Zwecken sind an der Innenwand des Trommelmantels sogenannte Schöpfrippen angeordnet.In known washing machine drums, the mechanical action on the laundry increased by raising it above the water level in the tub. Moreover the washing flow is improved by sprinkling with wash liquor from above. For these purposes, so-called scoop ribs are on the inner wall of the drum casing arranged.
Bei den von der Anmelderin hergestellten und vertriebenen Waschmaschinen ist es allgemein bekannt, die Schöpfrippen als separate, an den Seiten offene Biegeteile aus Metallblech auszubilden. Sie werden mittels einer Falzverbindung am Trommelmantel befestigt und erstrecken sich über die gesamte Breite des Trommelmantels von einer Deckfläche der Trommel zur anderen. Um Spalte zwischen den seitlichen Rändern der Schöpfrippen und den Deckflächen zu vermeiden, werden die Rippen durch längs durchgeführte Stehbolzen mit den Deckflächen der Trommel verspannt. Diese Stehbolzen dienen gleichzeitig zur Befestigung eines Lagerkreuzes an der Trommel, welches einen Lagerzapfen trägt. Hierdurch wird eine hohe Festigkeit des Gesamtaufbaus erreicht, welche auch für Trommeldrehzahlen bis 1800 min-1 einen sicheren Zusammenhalt der einzelnen Bestandteile gewährleistet. Ein ähnlicher Aufbau einer Schöpfrippe ist aus der DE 38 25 377 A1 (s. Figuren 1 und 2) bekannt. Bei dieser Ausführungsform werden sehr viele Einzelbauteile benötigt, die hergestellt und zusammengebaut werden müssen.It is general with the washing machines manufactured and sold by the applicant known to form the scoop ribs as separate, open on the sides bent parts made of sheet metal. They are attached to the drum shell by means of a fold connection and extend across the entire width of the drum shell from one top surface of the drum to the other. To close gaps between the side edges of the scoop ribs and the top surfaces avoid, the ribs are carried by longitudinally executed studs with the top surfaces of the Tensioned drum. These stud bolts also serve to fasten a bearing cross on the drum, which carries a bearing journal. This ensures a high strength of the overall structure achieved, which also holds together reliably for drum speeds up to 1800 min-1 of the individual components guaranteed. A similar structure of a scoop rib is known from DE 38 25 377 A1 (see FIGS. 1 and 2). In this embodiment very many individual components are required, which must be manufactured and assembled.
Aus der EP 0 806 513 A2 ist eine Waschmaschinentrommel bekannt, bei der die Schöpfrippe durch Falzen aus dem Blech des Trommelmantels geformt ist und hierdurch dessen einstückiges Bestandteil bildet.A washing machine drum is known from EP 0 806 513 A2, in which the scoop rib is formed by folding from the sheet of the drum shell and thereby the one piece Forms part.
Es ist außerdem bekannt (DE 33 17 201 A1), Schöpfrippen einstückig als Spritzgussteile aus Kunststoff auszubilden und durch Verrastung und Verschraubung am Trommelmantel zu befestigen. Diese Rippen besitzen eine allseitig geschlossene wannenförmige Kontur. Sie können leicht durch an der Wäsche befindliche Reißverschlüsse und andere Metallteile mit Kratzern beschädigt werden. Außerdem besitzen die Rippen und ihre Befestigung nur eine geringe Stabilität und sind deshalb nicht für hohe Drehzahlen (1800 min-1) geeignet. Es besteht deshalb der Wunsch, solche Schöpfrippen aus Metall zu fertigen, beispielsweise als Tiefziehteile aus Blech. Um ausreichende Schöpfvolumen zu gewährleisten und außerdem die Mitnahme der Wäsche nicht zu gefährden, müssen hohe Ziehtiefen erreicht werden.It is also known (DE 33 17 201 A1) to form scoop ribs in one piece as injection molded parts made of plastic and to fasten them to the drum shell by means of locking and screwing. These ribs have a trough-shaped contour that is closed on all sides. They can easily be damaged by zips on the laundry and other metal parts with scratches. In addition, the ribs and their attachment have little stability and are therefore not suitable for high speeds (1800 min -1 ). There is therefore a desire to manufacture such scoop ribs from metal, for example as deep-drawn parts made from sheet metal. In order to ensure sufficient scooping volume and also not to jeopardize taking laundry with you, high drawing depths must be achieved.
Der Erfindung stellt sich somit das Problem, eine Waschmaschinentrommel der eingangs genannten zu offenbaren, bei welcher die Höhe der Schöpfrippen bei gleichbleibendem Schöpfvolumen bzw. gleicher Mitnahmefähigkeit verringert werden kann.The invention thus presents the problem of a washing machine drum of the type mentioned to disclose at which the height of the scoop ribs with the same scoop volume or the same portability can be reduced.
Erfindungsgemäß wird dieses Problem durch eine Waschmaschinentrommel gelöst, bei welcher der Trommelmantel im gesamten Bereich unterhalb des Randbereichs der Schöpfrippen einen gegenüber dem Bereich außerhalb der Schöpfrippen verringerten Durchmesser und hierdurch ins Trommelinnere gerichtete Erhebungen aufweist.According to the invention, this problem is solved by a washing machine drum in which the drum jacket in the entire area below the edge area of the scoop ribs reduced diameter compared to the area outside the scoop ribs and thereby has elevations directed into the interior of the drum.
Ein mit der Erfindung erreichbarer Vorteil besteht darin, dass eine in ihrem Höhenaufbau verringerte Rippe einfacher gefertigt werden kann und weniger Material zu ihrer Herstellung verbraucht. Ein weiterer Vorteil ergibt sich dadurch, dass durch die Erhebung eine Rampe geformt wird, welche vor dem üblichen Spalt oder Knick liegt, der sich bei separaten Rippen zwischen der Rippenflanke und dem Trommelmantel einstellt. Durch die übergangslose Erhebung wird bei einer Drehung der Trommel eine Wasserwelle erzeugt, die in die Wäsche gedrückt wird und so zu ihrer schnelleren Durchfeuchtung beiträgt. Außerdem wird die Wäsche durch die Erhebung bereits sanft angehoben und bewegt sich leichter über den vorbeschrieben Spalt oder Knick, wodurch ein Schoneffekt eintritt.An advantage that can be achieved with the invention is that its height structure is reduced Rib can be manufactured more easily and less material is used to manufacture it. Another advantage results from the fact that the elevation forms a ramp which is in front of the usual gap or crease, which is between separate ribs the rib flank and the drum jacket. Through the seamless survey when the drum rotates, a water wave is generated which is pressed into the laundry and thus contributes to their faster moisture penetration. In addition, the laundry is collected already gently raised and moving more easily over the gap or described above Kink, which creates a gentle effect.
In einer vorteilhaften Ausführungsform ist der Trommelmantel in einem Bereich unterhalb der Schöpfrippen mit Einlassöffnungen versehen und dieser Bereich besitzt etwa den gleichen Durchmesser wie der Bereich außerhalb der Schöpfrippen. Hierdurch wird das Schöpfvolumen vergrößert und die Schöpföffnungen im Trommelmantel werden in einen besseren Wirkungsbereich an dessen Außenumfang verlegt.In an advantageous embodiment, the drum jacket is in an area below the Provide scoop ribs with inlet openings and this area has approximately the same Diameter like the area outside the scoop ribs. This creates the scooping volume enlarged and the scoop openings in the drum jacket are in a better effective range laid on its outer circumference.
Es ist außerdem vorteilhaft, wenn die Erhebungen einen trapezförmigen Querschnitt besitzen. Hierdurch werden die vorgeschilderten Effekte bei der Bildung der Wasserwelle und beim Anheben der Wäsche verstärkt. Außerdem sind Erhebungen dieses Querschnitts sehr einfach zu fertigen.It is also advantageous if the elevations have a trapezoidal cross section. As a result, the effects described in the formation of the water wave and when lifting reinforced the laundry. In addition, surveys of this cross section are very easy to do finished.
Es ist insbesondere von Vorteil, wenn die Schöpfrippen bis auf eventuell vorhandene Auslassöffnungen eine allseitig geschlossene wannenförmige Oberflächenkontur besitzen und sich in Längsrichtung nur über einen Teilbereich des Trommelmantels erstrecken, so dass die Erhebungen einen geschlossenen Rahmen bilden. Hierdurch werden enge Spalte zwischen den Seitenflächen der Schöpfrippen und den Deckflächen der Trommel vermieden.It is particularly advantageous if the scoop ribs except for any outlet openings have a trough-shaped surface contour that is closed on all sides and are in Only extend in the longitudinal direction over a partial area of the drum shell, so that the elevations form a closed frame. This will close gaps between the Side surfaces of the scoop ribs and the top surfaces of the drum avoided.
Der Erfindung stellt sich außerdem das Problem, ein Verfahren zur Herstellung des Mantels einer Waschmaschinentrommel der eingangs genannten Art zu offenbaren.The invention also has the problem of a method for producing the jacket to disclose a washing machine drum of the type mentioned.
Erfindungsgemäß wird dieses Problem durch ein Herstellungsverfahren gelöst, bei dem ein zylinderförmiges, eventuell mit Löchern vesehenes Blechteil auf einen größeren Radius expandiert wird, wobei mindestens diejenigen Bereiche ausgespart werden, die sich beim fertiggestellten Trommelmantel unterhalb der Randbereiche der Schöpfrippen befinden.According to the invention, this problem is solved by a manufacturing method in which a cylindrical, possibly perforated sheet metal part expanded to a larger radius is, whereby at least those areas are left that are in the finished Drum casing located below the edge areas of the scoop ribs.
Einerseits sind die Erhebungen durch ein solches Verfahren sehr einfach zu erzeugen, andererseits wird noch der Vorteil erreicht, dass der Trommelmantel durch das segmentierte Expandieren eine höhere Stabilität erhält.On the one hand, the surveys are very easy to generate using such a method, on the other hand the advantage is still achieved that the drum jacket through the segmented expansion receives a higher stability.
In einer vorteilhaften Ausführungsform des erfindungsgemäßen Verfahrens ist die Verbindungsnaht des zylinderförmigen Blechteils in einer unter einer Schöpfrippe angeordneten Flanke einer Erhebung angeordnet. Auf diese Weise ist die Verbindungsnaht für den Benutzer der Waschmaschine nicht sichtbar, außerdem wird ein Kontakt mit der Wäsche vermieden.In an advantageous embodiment of the method according to the invention, the connecting seam is of the cylindrical sheet metal part in a flank arranged under a scoop rib Survey ordered. In this way, the connection seam is for the user of the washing machine not visible, and contact with the laundry is avoided.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigt
Figur 1- Die Gesamtansicht einer erfindungsgemäß aufgebauten Waschmaschinentrommel in perspektivischer Darstellung;
Figur 2- einen Querschnitt durch den Trommelmantel (1) im Bereich der Schöpfrippe (2);
Figur 3- einen Längsschnitt durch die Waschmaschinentrommel im Bereich der Schöpfrippe (2).
- Figure 1
- The overall view of a washing machine drum constructed according to the invention in a perspective view;
- Figure 2
- a cross section through the drum shell (1) in the region of the scoop rib (2);
- Figure 3
- a longitudinal section through the washing machine drum in the area of the scoop rib (2).
Im Folgenden werden das erfindungsgemäße Herstellungsverfahren und der daraus resultierende Aufbau einer Waschmaschinentrommel für eine Frontlader-Waschmaschine beschrieben. Beides gilt analog für eine Toplader-Waschmaschine, wobei dann die Öffnung für das Be- und Entladen der Wäsche nicht in der Frontkappe (3), sondern im Mantel angeordnet ist.The manufacturing process according to the invention and the resulting one are described below Structure of a washing machine drum for a front loading washing machine described. Both apply analogously to a top loading washing machine, with the opening for loading and Unloading the laundry is not arranged in the front cap (3), but in the jacket.
Zur Herstellung des in den Figuren 1 bis 3 gezeigten Trommelmantels wird zunächst von einem Blechcoil eine Platine abgeschnitten und durch Stanzen mit einer Lochung (nicht dargestellt) versehen, welche auf den Bereich beschränkt ist, der später zwischen den Schöpfrippen (2) liegt. In den Bereich, der später unter den Schöpfrippen (2) liegt, werden größere langgestreckte Einlassöffnungen (11) gestanzt. Danach wird die Blechplatine gerundet und geschweißt oder mittels anderer Verbindungstechniken zu einem Zylinder geformt. Zur Stabilitätserhöhung wird der gerundete Trommelmantel (1) in Teilbereichen (12, 13) wie nachfolgend beschrieben auf einen größeren Radius expandiert. Anschließend werden Schöpfrippen (2) auf dem Mantel (1) befestigt, welche bis auf Auslassöffnungen (21) eine allseitig geschlossene wannenförmige Oberflächenkontur besitzen und sich in Längsrichtung nur über einen Teilbereich des Trommelmantels erstrecken (s. Figur 3). Die Schöpfrippen (2) werden aus Blech durch ein Tiefziehverfahren hergestellt und weisen eine Höhe von ca. 30 mm auf. Ihre Befestigung erfolgt durch die aus der DE 38 25 377 A1 bekannte Falzverbindung (nicht dargestellt), bei der Verbindungslaschen an den Rippenrändern (22) in Schlitze im Trommelmantel (1) gesteckt und anschließend umgebogen werden. Nach der Fertigstellung wird der Trommelmantel mit einer kreisringförmigen Kappe (3) und einem kreisförmigen Boden (4) verbunden.To manufacture the drum shell shown in FIGS. 1 to 3, first of all one Sheet metal coil cut a board and by punching with a perforation (not shown) provided, which is limited to the area that will later between the scoop ribs (2) lies. In the area that later lies under the scoop ribs (2), larger elongated ones become Inlet openings (11) punched. Then the sheet metal plate is rounded and welded or formed into a cylinder using other joining techniques. To increase stability the rounded drum jacket (1) in partial areas (12, 13) as described below expanded a larger radius. Then scoop ribs (2) on the jacket (1) attached, which, apart from outlet openings (21), has a trough-shaped surface contour which is closed on all sides own and in the longitudinal direction only over a partial area of the drum casing extend (see Figure 3). The scoop ribs (2) are made from sheet metal using a deep-drawing process manufactured and have a height of approx. 30 mm. They are attached by the Folded connection (not shown) known from DE 38 25 377 A1, for the connecting tabs at the rib edges (22) in slots in the drum jacket (1) and then be bent. After completion, the drum shell is made with an annular Cap (3) and a circular bottom (4) connected.
Das Aufweiten des gerundeten Zylinders zur endgültigen Form des Trommelmantels (1) erfolgt durch ein mechanischs Expandierverfahren. Dabei wird der Zylinder nur in Teilbereichen (12, 13) von innen mit Druck beaufschlagt, so dass dort sein Durchmesser um ca. 20 mm vergrößert wird. Ein rechteckiger Rahmen in einer Mantelzone unterhalb des Randbereichs (22) der Schöpfrippen (2) wird bei der Aufweitung ausgespart. Da der Bereich (13), der die Einlassöffnungen (11) unter den Schöpfrippen (2) umgibt, auch in gleicher Weise expandiert wird, bilden die nicht expandierten Bereiche im Tommelmantel ins Trommelinnere gerichtete Erhebungen (14) mit einer geschlossenen, rechteckigen Kontur. Die Erhebungen (14) besitzen einen trapezförmigen Querschnitt. Der Zylinder wird in der Expandiervorrichtung so platziert, dass seine Verbindungsnaht (15) auf einer ins Schöpfrippeninnere gerichteten Flanke (141) einer Erhebung (14) liegt, wodurch die Naht nach dem Einbau der Schöpfrippe (2) durch diese verborgen wird.The rounded cylinder is expanded to the final shape of the drum casing (1) through a mechanical expansion process. The cylinder is only in parts (12, 13) pressurized from the inside, so that its diameter increases by approx. 20 mm there becomes. A rectangular frame in a jacket zone below the edge area (22) of the Ladle ribs (2) are left out during expansion. Because the area (13) that the inlet openings (11) surrounds under the scoop ribs (2), is also expanded in the same way, form the unexpanded areas in the drum jacket elevations directed into the interior of the drum (14) with a closed, rectangular contour. The elevations (14) have one trapezoidal cross-section. The cylinder is placed in the expander so that its connecting seam (15) on a flank (141) directed into the inside of the scoop ribs Elevation (14) lies, whereby the seam after installation of the scoop rib (2) is hidden by it becomes.
Durch den vorbeschrieben Aufbau geht die Steigung an den Außenflanken (142) der Erhebungen in die Schöpfrippen (2) über, so dass der Giebelbereich (23) der Schöpfrippen (2) insgesamt 40 mm über dem größten Außendurchmesser des Trommelmantels (1) liegt.Due to the structure described above, the slope on the outer flanks (142) of the elevations into the scoop ribs (2) so that the gable area (23) of the scoop ribs (2) as a whole 40 mm above the largest outside diameter of the drum casing (1).
Claims (6)
dadurch gekennzeichnet, dass der Trommelmantel (1) im gesamten Bereich unterhalb des Randbereichs (22) der Schöpfrippen einen gegenüber dem Bereich (12) außerhalb der Schöpfrippen (2) verringerten Durchmesser und hierdurch ins Trommelinnere gerichtete Erhebungen (14) aufweist.Washing machine drum, which is rotatably mounted in the interior of a tub around an at least approximately horizontal axis and has a hollow cylindrical jacket (1) and two cover surfaces (3, 4), an opening for receiving the jacket (1) or one of the cover surfaces (3) of laundry is arranged, with scoop ribs (2) arranged on the inside of the drum jacket (1), which are designed as separate components and are attached to the drum jacket (1) in such a way that at least their axially directed edge region (22) abuts the drum jacket, and which extend at least approximately parallel to the drum axis,
characterized in that the drum casing (1) has a reduced diameter in the entire area below the edge area (22) of the scoop ribs compared to the area (12) outside the scoop ribs (2) and thus elevations (14) directed into the drum interior.
dadurch gekennzeichnet, dass der Trommelmantel in einem Bereich (13) unterhalb der Schöpfrippen (2) mit Einlassöffnungen (11) versehen ist und dass dieser Bereich (13) etwa den gleichen Durchmesser wie der Bereich (12) außerhalb der Schöpfrippen (2) besitzt.Washing machine drum according to claim 1,
characterized in that the drum shell is provided in an area (13) below the scoop ribs (2) with inlet openings (11) and in that this area (13) has approximately the same diameter as the area (12) outside the scoop ribs (2).
dadurch gekennzeichnet, dass die Erhebungen (14) einen trapezförmigen Querschnitt besitzen.Washing machine drum according to claim 1 or 2,
characterized in that the elevations (14) have a trapezoidal cross section.
dadurch gekennzeichnet, dass die Schöpfrippen (2) bis auf eventuell vorhandene Auslassöffnungen (21) eine allseitig geschlossene wannenförmige Oberflächenkontur besitzen und sich in Längsrichtung nur über einen Teilbereich des Trommelmantels erstrecken, so dass die Erhebungen (14) einen geschlossenen Rahmen bilden.Washing machine drum according to at least one of claims 1 to 3,
characterized in that the scoop ribs (2), apart from any outlet openings (21) which may be present, have a trough-shaped surface contour which is closed on all sides and only extend in the longitudinal direction over a partial region of the drum shell, so that the elevations (14) form a closed frame.
dadurch gekennzeichnet, dass ein zylinderförmiges, eventuell mit Löchern versehenes Blechteil auf einen größeren Radius expandiert wird, wobei mindestens diejenigen Bereiche ausgespart werden, die sich beim fertiggestellten Trommelmantel (1) unterhalb der Randbereiche (22) der Schöpfrippen (2) befinden. A process for producing the jacket (1) of a washing machine drum according to at least one of claims 1 to 4,
characterized in that a cylindrical, possibly perforated sheet metal part is expanded to a larger radius, at least those areas being cut out which are located below the edge areas (22) of the scoop ribs (2) in the finished drum casing (1).
dadurch gekennzeichnet, dass die Verbindungsnaht (15) des zylinderförmigen Blechteils in einer unter einer Schöpfrippe (2) angeordneten Flanke (141) einer Erhebung (14) angeordnet ist.A method of manufacturing the jacket (1) of a washing machine drum according to claim 5,
characterized in that the connecting seam (15) of the cylindrical sheet metal part is arranged in a flank (141) of an elevation (14) arranged under a scoop rib (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10260023A DE10260023B3 (en) | 2002-12-19 | 2002-12-19 | Washing machine drum with cupping ribs and method for producing the jacket of such a washing machine drum |
| DE10260023 | 2002-12-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1433889A1 true EP1433889A1 (en) | 2004-06-30 |
| EP1433889B1 EP1433889B1 (en) | 2006-11-02 |
Family
ID=29762188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03104223A Expired - Lifetime EP1433889B1 (en) | 2002-12-19 | 2003-11-17 | Washing machine drum with ribs and process to produce such a washing machine drum |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1433889B1 (en) |
| AT (1) | ATE344346T1 (en) |
| DE (2) | DE10260023B3 (en) |
| ES (1) | ES2274174T3 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008065690A1 (en) * | 2006-11-28 | 2008-06-05 | Meccanica Generale S.R.L. | Drum for washers able to avoid damages to laundry |
| CN101979750A (en) * | 2010-11-03 | 2011-02-23 | 上海川岛艾美机械设备有限公司 | Washing inner barrel with rubbing mechanism for industrial washing machine |
| JP2015054159A (en) * | 2013-09-13 | 2015-03-23 | パナソニックＩｐマネジメント株式会社 | Drum-type washing machine |
| JP2015053946A (en) * | 2013-09-10 | 2015-03-23 | パナソニックＩｐマネジメント株式会社 | Drum-type washing machine |
| WO2023184641A1 (en) * | 2022-03-31 | 2023-10-05 | 无锡小天鹅电器有限公司 | Inner tub of clothes treatment device, and clothes treatment device |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2260977B1 (en) * | 2003-07-15 | 2007-08-16 | Bsh Electrodomesticos España, S.A. | DRUM WASHER DRUM. |
| AU2004203379B2 (en) * | 2003-07-28 | 2006-10-12 | Lg Electronics Inc. | Washing machine |
| WO2005106098A1 (en) * | 2004-04-28 | 2005-11-10 | Arcelik Anonim Sirketi | A washer / dryer |
| EP1876281B1 (en) * | 2006-07-06 | 2012-10-10 | Candy S.p.A. | Basket for a washing or drying machine |
| KR101367112B1 (en) * | 2007-06-07 | 2014-02-26 | 삼성전자주식회사 | Rotating tub body and drum type washing machine having the same |
| DE102007036619B3 (en) * | 2007-08-02 | 2008-09-18 | Miele & Cie. Kg | Drum for washing machine, has suds container, in which drum is rotatably supported on horizontal or inclined axis, and drum has rear wall and casing is provided with holes |
| KR101568914B1 (en) * | 2013-12-24 | 2015-11-12 | 동부대우전자 주식회사 | Washing machine |
| CN217052761U (en) * | 2021-11-01 | 2022-07-26 | 无锡小天鹅电器有限公司 | Inner drum of clothes treatment device and clothes treatment device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB853824A (en) * | 1957-11-22 | 1960-11-09 | Laden S A | Improvements in or relating to rotatable drums |
| DE1585867A1 (en) * | 1966-08-31 | 1971-10-07 | Philips Nv | Household washing machine |
| DE3317201A1 (en) * | 1983-05-11 | 1984-11-15 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Washing-machine drum |
| EP0806513A2 (en) * | 1996-05-11 | 1997-11-12 | Samsung Electronics Co., Ltd. | Washing machine |
| EP0985758A1 (en) * | 1998-09-08 | 2000-03-15 | Miele & Cie. GmbH & Co. | Laundry drier with a rotatable laundry drum on bearings |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3825377A1 (en) * | 1988-07-26 | 1990-02-01 | Bosch Siemens Hausgeraete | WASHING DRUM |
-
2002
- 2002-12-19 DE DE10260023A patent/DE10260023B3/en not_active Expired - Fee Related
-
2003
- 2003-11-17 EP EP03104223A patent/EP1433889B1/en not_active Expired - Lifetime
- 2003-11-17 DE DE50305561T patent/DE50305561D1/en not_active Expired - Lifetime
- 2003-11-17 AT AT03104223T patent/ATE344346T1/en not_active IP Right Cessation
- 2003-11-17 ES ES03104223T patent/ES2274174T3/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB853824A (en) * | 1957-11-22 | 1960-11-09 | Laden S A | Improvements in or relating to rotatable drums |
| DE1585867A1 (en) * | 1966-08-31 | 1971-10-07 | Philips Nv | Household washing machine |
| DE3317201A1 (en) * | 1983-05-11 | 1984-11-15 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Washing-machine drum |
| EP0806513A2 (en) * | 1996-05-11 | 1997-11-12 | Samsung Electronics Co., Ltd. | Washing machine |
| EP0985758A1 (en) * | 1998-09-08 | 2000-03-15 | Miele & Cie. GmbH & Co. | Laundry drier with a rotatable laundry drum on bearings |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008065690A1 (en) * | 2006-11-28 | 2008-06-05 | Meccanica Generale S.R.L. | Drum for washers able to avoid damages to laundry |
| CN101979750A (en) * | 2010-11-03 | 2011-02-23 | 上海川岛艾美机械设备有限公司 | Washing inner barrel with rubbing mechanism for industrial washing machine |
| JP2015053946A (en) * | 2013-09-10 | 2015-03-23 | パナソニックＩｐマネジメント株式会社 | Drum-type washing machine |
| JP2015054159A (en) * | 2013-09-13 | 2015-03-23 | パナソニックＩｐマネジメント株式会社 | Drum-type washing machine |
| WO2023184641A1 (en) * | 2022-03-31 | 2023-10-05 | 无锡小天鹅电器有限公司 | Inner tub of clothes treatment device, and clothes treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50305561D1 (en) | 2006-12-14 |
| EP1433889B1 (en) | 2006-11-02 |
| ATE344346T1 (en) | 2006-11-15 |
| ES2274174T3 (en) | 2007-05-16 |
| DE10260023B3 (en) | 2004-01-22 |
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