EP0395859A1 - Washing machine drum - Google Patents

Washing machine drum Download PDF

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Publication number
EP0395859A1
EP0395859A1 EP90104806A EP90104806A EP0395859A1 EP 0395859 A1 EP0395859 A1 EP 0395859A1 EP 90104806 A EP90104806 A EP 90104806A EP 90104806 A EP90104806 A EP 90104806A EP 0395859 A1 EP0395859 A1 EP 0395859A1
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EP
European Patent Office
Prior art keywords
seam
beads
drum
joined
drum according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90104806A
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German (de)
French (fr)
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EP0395859B1 (en
Inventor
Lothar Heinzel
Klaus Bierbach
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BOSCH-SIEMENS HAUSGERAETE GMBH
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Individual
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Priority to AT90104806T priority Critical patent/ATE98706T1/en
Publication of EP0395859A1 publication Critical patent/EP0395859A1/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder

Definitions

  • the invention relates to a washing machine drum with a jacket made of a sheet metal strip which is joined in a ring in an at least approximately parallel to the axis of rotation of the drum by means of two bending edges folded in a hook-shaped cross section.
  • a laundry drum of this type suitable for spinning is known from DE-GM 18 71 983.
  • the fold seam is opened and bent elastically by stretching in the direction of the surface line and by pressure from the inside. Load changes of this type lead on the one hand to crystalline embrittlement in the sheet metal, which causes cracks in the sheet metal.
  • the initially elastic strains and bends are converted into plastic deformations, among other things also by the fact that the embrittlement reduces the modulus of elasticity.
  • the fold seam then tears open and opens. Vault tes sheet metal overcomes the distance to the tub shell and to tub internals, eg heating rods, and causes greater damage there. Leaking laundry is damaged and also causes machine damage.
  • the invention is based on the object of designing a washing machine drum as described in the introduction in such a way that, by using simple means, the fold seam also withstands higher loads without incurring any risk of corrosion.
  • this object is achieved in that the joined seam is provided with a plurality of beads oriented transversely to its course.
  • Such beads increase the stability of the seam against forces in the circumferential direction of the drum.
  • the fold seam can thus better withstand unfolding. Transverse movements within the fold seam also prevent these beads effectively, so that elastic material movements are avoided in the load changes described above.
  • the beads extend into the area of the outer bending edge near the seam.
  • the bead folds outside and across the fold seam also act as stabilizers against the feared unfolding. It is advantageous to extend the beads on both sides of the seam.
  • the beads are about as deep as the seam is thick.
  • the beads are about twice as long as the joined seam is wide.
  • the beads are about twice as wide as the seam.
  • an even distribution of five beads over the length of the seam has proven to be sufficient.
  • the proportions of the laundry drum shown schematically in FIG. 1 are covered in favor of the sheet thickness and the dimensions of the fold seam.
  • the jacket sheet 1 has two bent edges 2 and 3 which are folded in a hook-shaped cross-section and which are joined to form a folded seam 4.
  • This fold seam protects against shear forces of the bending edges against each other because the two sheets are supported on each other, and against tensile forces from each other because the two hooks interlock.
  • both forces cause an elastic deformation in the seam, which leads to inter lead to crystalline structural changes. These changes can make the sheet brittle and cause cracks.
  • the fold seam 4 (FIG. 2) is provided with embossed beads 5 at five points uniformly distributed over its length, which give the seam an increased rigidity in the circumferential direction of the drum shell. These beads extend with trough-shaped depressions 5 into the area near the seam 4 lying outside the bending edges. The beads which continue in this way into sheet metal lying next to the seam acquire a very high degree of rigidity and make a significant contribution to the hook-shaped folds 2 and 3 are protected against thrust and pressure forces in the drum jacket.
  • each bead 5 is approximately as long (L) as twice the width B of the joint fold seam 4. Both dimensions depend essentially on the sheet thickness used, so that there can be no narrow limits.
  • the depth T of the beads 5 is also measured by the sheet thickness; it should be about as deep as the joined seam, the four sheets lying one above the other have a thickness D.
  • the width 2B of the beads 5 has advantageously been set at approximately twice the width B of the seam. Here too there are of course relatively wide limits, which are based on the sheet thickness of the jacket sheet used.
  • Fig. 2 it is also shown that in an embodiment of the fold seam according to the invention, even in the vicinity of this fold seam differently shaped openings, holes, and slots 7 can be arranged in the cladding sheet, without the risk that these slots are preferably used for crack formation in the Cladding sheet should lead.
  • This can be important if the fold seam is to be arranged under or next to a laundry driver, which is fastened to the drum jacket sheet by means of such slots.
  • scooping devices can be embossed from the jacket plane under such a driver in order to convey water into the driver when the drum is rotated.
  • the beads can - as indicated by dash-dotted lines in Fig. 2 and 3 - extend more or less far on the other side in the area next to the seam. This advantageously results in a supporting moment against the erection of the lower, folded bending edge. If the set-up forces acting on the lower bending edge are lower than those of the upper bending edge (e.g. due to the additional centrifugal forces acting freely on the upper bending edge), the additional extension may be shorter than that (6) of the other seam side.
  • the shape, number and distribution of the beads is only given here as an example.
  • the beads can also have non-parallel longitudinal edges or parallel but oblique longitudinal edges. In the latter case, however, the inclined position would have to alternate from bead to bead in order to prevent a preferential transverse displacement direction of the transverse forces acting on the seam.
  • An uneven distribution of the beads over the length of the seam can also be considered if it can be seen that, for example, higher tensile and compressive forces act in the middle of the seam than on the side of the drum.
  • the dimensions of the beads are variable - as already indicated above - and essentially depend on the sheet thickness and the forces that occur.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Abstract

The drum casing (1) produced from a sheet-metal strip is joined together annularly along a seam (4) at least approximately parallel to the axis of rotation of the drum by means of two bending edges (2, 3) folded in a hook-shaped manner, as seen in cross-section. So that this folded seam (4) withstands the great stresses appearing at high spinning speeds, the joined seam (4) is equipped with a plurality of beads (5, 6) oriented transversely relative to its course. <IMAGE>

Description

Die Erfindung betrifft eine Waschmaschinen-Trommel mit einem Mantel aus einem Blechstreifen, der in einer wenigstens annähernd parallel zur Trommeldrehachse lie­genden Naht mittels zweier, im Querschnitt hakenförmig gefalzter Biegekanten ring­förmig zusammengefügt ist.The invention relates to a washing machine drum with a jacket made of a sheet metal strip which is joined in a ring in an at least approximately parallel to the axis of rotation of the drum by means of two bending edges folded in a hook-shaped cross section.

Eine zum Schleudern geeignete Wäschetrommel dieser Art ist aus dem DE-GM 18 71 983 bekannt. Bei sehr hohen Zentrifugalkräften, die insb. bei höheren Schleu­derdrehzahlen als 1000 Upm in Waschmaschinen-Trommeln mit mindestens 430 mm Außendurchmesser auftreten, erlangt die Beanspruchung der Falznaht ihre Grenzbe­lastbarkeit. Durch Dehnungen in Richtung der Mantellinie und durch Druck von innen wird die Falznaht elastisch geöffnet und durchgebogen. Lastwechsel dieser Art füh­ren im Blech einerseits zu kristallinen Versprödungen, die Risse im Blech verursa­chen. Andererseits werden die zunächst elastischen Dehnungen und Biegungen in pla­stische Verformungen umgesetzt, u.a. auch dadurch, daß die Versprödungen den Ela­stizitätsmodul herabsetzen. Die Falznaht reißt dann auf und öffnet sich. Aufgewölb­ tes Blech überwindet den Abstand zum Laugenbehälter-Mantel und zu Laugenbehäl­ter-Einbauten, z.B. Heizungsstäbe, und richtet dort größere Schäden an. Austretende Wäsche nimmt Schaden und verursacht ebenfalls Maschinenschäden.A laundry drum of this type suitable for spinning is known from DE-GM 18 71 983. At very high centrifugal forces, which occur in particular at spin speeds higher than 1000 rpm in washing machine drums with an outside diameter of at least 430 mm, the stress on the fold seam reaches its maximum load-bearing capacity. The fold seam is opened and bent elastically by stretching in the direction of the surface line and by pressure from the inside. Load changes of this type lead on the one hand to crystalline embrittlement in the sheet metal, which causes cracks in the sheet metal. On the other hand, the initially elastic strains and bends are converted into plastic deformations, among other things also by the fact that the embrittlement reduces the modulus of elasticity. The fold seam then tears open and opens. Vault tes sheet metal overcomes the distance to the tub shell and to tub internals, eg heating rods, and causes greater damage there. Leaking laundry is damaged and also causes machine damage.

Zur Lösung dieses Problems sind Falznähte von Wäschetrommeln schon geschweißt worden. Diese thermische Behandlung führt jedoch ebenfalls zu einer Veränderung der Kristallgitterstruktur, die sich leicht durch interkristalline Korrosion bemerkbar macht. Ein Durchrosten des an sich nichtrostenden Stahlblechs und eine Rostinfek­tion der übrigen Nirosta-Teile bleiben dann nicht aus.To solve this problem, fold seams of laundry drums have already been welded. However, this thermal treatment also leads to a change in the crystal lattice structure, which is easily noticeable through intergranular corrosion. Rusting of the stainless steel sheet itself and rust infection of the other stainless steel parts do not fail to materialize.

Der Erfindung liegt die Aufgabe zugrunde, eine eingangs beschriebene Waschmaschi­nen-Trommel so auszubilden, daß durch Anwendung einfacher Mittel die Falznaht auch höheren Belastungen Stand hält, ohne eine Korrosionsgefahr dadurch einzuhand­eln.The invention is based on the object of designing a washing machine drum as described in the introduction in such a way that, by using simple means, the fold seam also withstands higher loads without incurring any risk of corrosion.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die gefügte Naht mit meh­reren, quer zu ihrem Verlauf orientierten Sicken versehen ist.According to the invention, this object is achieved in that the joined seam is provided with a plurality of beads oriented transversely to its course.

Derartige Sicken erhöhen die Stabilität der Falznaht gegen Kräfte in Umfangsrich­tung der Trommel. Einer Auffaltung kann die Falznaht dadurch besser widerstehen. Auch Querbewegungen innerhalb der Falznaht verhindern diese Sicken wirkungsvoll, so daß bei den oben beschriebenen Lastwechseln elastische Materialbewegungen ver­mieden werden.Such beads increase the stability of the seam against forces in the circumferential direction of the drum. The fold seam can thus better withstand unfolding. Transverse movements within the fold seam also prevent these beads effectively, so that elastic material movements are avoided in the load changes described above.

Diese Stabilität wird durch eine vorteilhafte Weiterbildung der Erfindung nochmals wesentlich erhöht, bei der die Sicken sich bis in den Bereich der außen liegenden Biegekante nahe der Naht erstrecken. Hier wirken die Sicken-Falten außerhalb der und quer zur Falznaht zusätzlich als Stabilisatoren gegen das befürchtete Auffalten. Von Vorteil ist die Erstreckung der Sicken beiderseits der Naht.This stability is significantly increased again by an advantageous development of the invention, in which the beads extend into the area of the outer bending edge near the seam. Here the bead folds outside and across the fold seam also act as stabilizers against the feared unfolding. It is advantageous to extend the beads on both sides of the seam.

Als für die Stabilität vorteilhafte Ausgestaltung haben sich folgende Merkmale er­wiesen, die einzeln oder kombiniert angewendet ihre Wirkungen entfalten bzw. sich in ihren Wirkungen ergänzen können:
Die Sicken sind etwa so tief, wie die gefügte Naht dick ist.
Die Sicken sind etwa doppelt so lang, wie die gefügte Naht breit ist.
Die Sicken sind etwa doppelt so breit wie die Naht.The following features have proven to be advantageous for the stability, which, when used individually or in combination, develop their effects or can complement one another in their effects:
The beads are about as deep as the seam is thick.
The beads are about twice as long as the joined seam is wide.
The beads are about twice as wide as the seam.

In einer ausgeführten Form der Erfindung hat sich eine gleichmäßige Verteilung von fünf Sicken über die Länge der Naht als ausreichend erwiesen.In one embodiment of the invention, an even distribution of five beads over the length of the seam has proven to be sufficient.

Anhand der in der Zeichnung dargestellten Ausführungsform ist die Erfindung nach­stehend erläutert. Es zeigen

  • Fig. 1 einen schematischen senkrechten Schnitt durch eine waage­recht gelagerte Wäschetrommel entlang der Schnittlinie I-I in Fig. 2,
  • Fig. 2 eine Ansicht auf die Trommelaußenseite in Höhe der erfindungsgemäß ausgebildeten Falznaht,
  • Fig. 3 einen Schnitt in Mantelrichtung durch die Falznaht in Höhe einer Sicke entlang der Schnittlinie III-III in Fig. 2 und
  • Fig. 4 einen Schnitt quer zur Mantelrichtung durch die Falznaht in Höhe einer Sicke entlang der Schnittlinie IV-IV in Fig. 2.
Based on the embodiment shown in the drawing, the invention is explained below. Show it
  • 1 is a schematic vertical section through a horizontally mounted laundry drum along the section line II in Fig. 2,
  • 2 is a view of the outside of the drum at the level of the fold seam designed according to the invention,
  • Fig. 3 shows a section in the jacket direction through the fold seam at the height of a bead along the section line III-III in Fig. 2 and
  • 4 shows a section transverse to the jacket direction through the fold seam at the height of a bead along the section line IV-IV in FIG. 2.

Die Proportionen der in Fig. 1 schematisch dargestellten Wäschetrommel sind zugun­sten der Blechdicke und der Abmessungen der Falznaht überzogen. Das Mantelblech 1 hat zwei im Querschnitt hakenförmig gefalzte Biegekanten 2 und 3, die zu einer Falznaht 4 zusammengefügt sind. Diese Falznaht schützt vor Schubkräften der Biege­kanten gegeneinander, weil sich die beiden Bleche aufeinander abstützen, und vor Zugkräften voneinander, weil sich die beiden Haken ineinander verkrallen. Beide Kräfte rufen aber in der Falznaht eine elastische Verformung hervor, die zu inter­ kristallinen Gefügeänderungen führen. Diese Veränderungen können das Blech spröde machen und Risse hervorrufen.The proportions of the laundry drum shown schematically in FIG. 1 are covered in favor of the sheet thickness and the dimensions of the fold seam. The jacket sheet 1 has two bent edges 2 and 3 which are folded in a hook-shaped cross-section and which are joined to form a folded seam 4. This fold seam protects against shear forces of the bending edges against each other because the two sheets are supported on each other, and against tensile forces from each other because the two hooks interlock. However, both forces cause an elastic deformation in the seam, which leads to inter lead to crystalline structural changes. These changes can make the sheet brittle and cause cracks.

Zur Vermeidung derartiger Erscheinungen ist die Falznaht 4 (Fig. 2) an fünf gleichmäßig über ihre Länge verteilten Stellen mit niedergeprägten Sicken 5 verse­hen, die der Naht in Umfangsrichtung des Trommelmantels eine erhöhte Steifigkeit geben. Diese Sicken erstrecken sich mit muldenförmigen Vertiefungen 5 bis in den außerhalb der Biegekanten liegenden Bereich nahe der Naht 4. Die auf diese Weise bis in neben der Naht liegendes Blech fortgesetzten Sicken erlangen eine sehr große Steifigkeit und tragen erheblich dazu bei, daß die hakenförmigen Falze 2 und 3 ge­gen Schub- und Druckkräfte im Trommelmantel geschützt sind.To avoid such phenomena, the fold seam 4 (FIG. 2) is provided with embossed beads 5 at five points uniformly distributed over its length, which give the seam an increased rigidity in the circumferential direction of the drum shell. These beads extend with trough-shaped depressions 5 into the area near the seam 4 lying outside the bending edges. The beads which continue in this way into sheet metal lying next to the seam acquire a very high degree of rigidity and make a significant contribution to the hook-shaped folds 2 and 3 are protected against thrust and pressure forces in the drum jacket.

Zusammen mit der muldenförmigen Vertiefung 6 ist jede Sicke 5 etwa so lang (L) wie die doppelte Breite B der gefügten Falznaht 4. Beide Abmessungen richten sich wesentlich nach der verwendeten Blechdicke, so daß hierfür keine engen Grenzen gesetzt sein können. Die Tiefe T der Sicken 5 bemißt sich ebenfalls an der Blech­dicke; sie soll etwa so tief sein wie die gefügte Naht, deren vier übereinander lie­gende Bleche eine Dicke D haben. Ferner ist die Breite 2B der Sicken 5 vorteil­hafterweise auf etwa die doppelte Breite B der Naht festgelegt worden. Auch hier­für bestehen natürlich verhältnismäßig weite Grenzen, die sich an der Blechdicke des verwendeten Mantelbleches orientieren.Together with the trough-shaped recess 6, each bead 5 is approximately as long (L) as twice the width B of the joint fold seam 4. Both dimensions depend essentially on the sheet thickness used, so that there can be no narrow limits. The depth T of the beads 5 is also measured by the sheet thickness; it should be about as deep as the joined seam, the four sheets lying one above the other have a thickness D. Furthermore, the width 2B of the beads 5 has advantageously been set at approximately twice the width B of the seam. Here too there are of course relatively wide limits, which are based on the sheet thickness of the jacket sheet used.

In Fig. 2 ist noch gezeigt, daß bei einer erfindungsgemäßen Ausgestaltung der Falz­naht sogar in der Nähe dieser Falznaht im Mantelblech unterschiedlich geformte Durchbrüche, Löcher, und Schlitze 7 angeordnet sein können, ohne daß die Gefahr besteht, daß diese Schlitze etwa vorzugsweise zur Rißbildung im Mantelblech führen müßten. Dies kann von Bedeutung sein, wenn die Falznaht unter oder neben einem Wäschemitnehmer angeordnet sein soll, der mittels solcher Schlitze am Trommel­mantelblech befestigt ist. Außerdem können unter einem solchen Mitnehmer auch Schöpfvorrichtungen aus der Mantelebene geprägt sein, um beim Drehen der Trom­mel Wasser in den Mitnehmer zu fördern.In Fig. 2 it is also shown that in an embodiment of the fold seam according to the invention, even in the vicinity of this fold seam differently shaped openings, holes, and slots 7 can be arranged in the cladding sheet, without the risk that these slots are preferably used for crack formation in the Cladding sheet should lead. This can be important if the fold seam is to be arranged under or next to a laundry driver, which is fastened to the drum jacket sheet by means of such slots. In addition, scooping devices can be embossed from the jacket plane under such a driver in order to convey water into the driver when the drum is rotated.

Die Sicken können sich auch - wie in Fig. 2 und 3 strichpunktiert angedeutet - mehr oder weniger weit auf der anderen Seite in den Bereich neben der Naht er­strecken. Hierdurch ergibt sich in vorteilhafter Weise ein Stützmoment gegen das Aufstellen der unteren, gefalzten Biegekante. Wenn die auf die untere Biegekante wirkenden Aufstellkräfte geringer sind als diejenigen der oberen Biegekante (z.B. wegen der zusätzlich frei auf die obere Biegekante wirkenden Zentrifugalkräfte), kann die zusätzliche Erstreckung kürzer sein als diejenige (6) der anderen Nahtseite.The beads can - as indicated by dash-dotted lines in Fig. 2 and 3 - extend more or less far on the other side in the area next to the seam. This advantageously results in a supporting moment against the erection of the lower, folded bending edge. If the set-up forces acting on the lower bending edge are lower than those of the upper bending edge (e.g. due to the additional centrifugal forces acting freely on the upper bending edge), the additional extension may be shorter than that (6) of the other seam side.

Die Form, Anzahl und Verteilung der Sicken ist hier nur beispielsweise wiedergege­ben. Demgegenüber können die Sicken auch durchaus nichtparallele Längskanten oder parallele aber schräg liegende Längskanten aufweisen. Im letzteren Falle aller­dings müßte die Schräglage von Sicke zu Sicke alternieren, um eine Vorzugs-Quer­verschubrichtung der auf die Naht wirkenden Querkräfte zu verhindern. Außerdem kann an eine ungleichmäßige Verteilung der Sicken über die Länge der Naht ge­dacht werden, wenn zu erkennen ist, daß beispielsweise in der Mitte der Naht höhe­re Zug- und Druckkräfte wirken als an der Seite der Trommel. Auch die Abmessun­gen der Sicken sind variabel - wie oben bereits angedeutet wurde - und hängen im wesentlichen von der Blechdicke und den auftretenden Kräften ab.The shape, number and distribution of the beads is only given here as an example. In contrast, the beads can also have non-parallel longitudinal edges or parallel but oblique longitudinal edges. In the latter case, however, the inclined position would have to alternate from bead to bead in order to prevent a preferential transverse displacement direction of the transverse forces acting on the seam. An uneven distribution of the beads over the length of the seam can also be considered if it can be seen that, for example, higher tensile and compressive forces act in the middle of the seam than on the side of the drum. The dimensions of the beads are variable - as already indicated above - and essentially depend on the sheet thickness and the forces that occur.

Claims (7)

1. Waschmaschinen-Trommel mit einem Mantel aus einem Blechstreifen, der in einer wenigstens annähernd parallel zur Trommeldrehachse liegenden Naht mittels zweier, im Querschnitt hakenförmig gefalzter Biegekanten ringförmig zusammengefügt ist, dadurch gekennzeichnet, daß die gefügte Naht (4) mit mehreren quer zu ihrem Verlauf orientierten Sicken (5, 6) ver­sehen ist.1. washing machine drum with a jacket made of a sheet metal strip which is joined in a ring at least approximately parallel to the axis of rotation of the drum by means of two bending edges folded in a hook shape in cross section, characterized in that the joined seam (4) with several transverse to its course oriented beads (5, 6) is provided. 2. Trommel nach Anspruch 1, dadurch gekennzeichnet, daß die Sicken (5, 6) sich bis in den außerhalb der Biegekanten (2, 3) liegenden Bereich (6) nahe der Naht (4) erstrecken.2. Drum according to claim 1, characterized in that the beads (5, 6) extend into the region (6) lying outside the bending edges (2, 3) near the seam (4). 3. Trommel nach Anspruch 2, dadurch gekennzeichnet, daß die Sicken (5, 6) sich beiderseits der Naht (4) bis in den Bereich außerhalb der Biegekante erstrek ken.3. Drum according to claim 2, characterized in that the beads (5, 6) extend on both sides of the seam (4) to the area outside the bending edge. 4. Trommel nacheinem der Ansprüch 1 bis 3, dadurch gekennzeichnet, daß die Sicken (5, 6) etwa so tief (T) sind, wie die gefügte Naht (4) dick (Dicke D) ist.4. Drum according to one of claims 1 to 3, characterized in that the beads (5, 6) are approximately as deep (T) as the joined seam (4) is thick (thickness D). 5. Trommel nach Anspruch 2 oder 2 und 3 oder 2 und 4, dadurch gekennzeich­net, daß die Sicken (5, 6) etwa doppelt so lang (Länge L) sind, wie die ge­fügte Naht (4) breit (Breite B) ist.5. Drum according to claim 2 or 2 and 3 or 2 and 4, characterized in that the beads (5, 6) are approximately twice as long (length L) as the joined seam (4) is wide (width B). 6. Trommel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Sicken (5, 6) etwa doppelt so breit (Breite 2B) sind wie die Naht (Breite B).6. Drum according to one of the preceding claims, characterized in that the beads (5, 6) are approximately twice as wide (width 2B) as the seam (width B). 7. Trommel nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß über die Länge der Naht (4) fünf Sicken (5, 6) gleichmäßig verteilt sind.7. Drum according to one of the preceding claims, characterized in that five beads (5, 6) are evenly distributed over the length of the seam (4).
EP90104806A 1989-05-02 1990-03-14 Washing machine drum Expired - Lifetime EP0395859B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90104806T ATE98706T1 (en) 1989-05-02 1990-03-14 WASHING MACHINE DRUM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3914475 1989-05-02
DE3914475A DE3914475A1 (en) 1989-05-02 1989-05-02 WASHING MACHINE DRUM

Publications (2)

Publication Number Publication Date
EP0395859A1 true EP0395859A1 (en) 1990-11-07
EP0395859B1 EP0395859B1 (en) 1993-12-15

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EP90104806A Expired - Lifetime EP0395859B1 (en) 1989-05-02 1990-03-14 Washing machine drum

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EP (1) EP0395859B1 (en)
KR (1) KR100196463B1 (en)
AT (1) ATE98706T1 (en)
DD (1) DD296127A5 (en)
DE (2) DE3914475A1 (en)
ES (1) ES2047180T3 (en)
HK (1) HK91495A (en)
TR (1) TR25217A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003054274A1 (en) * 2001-12-21 2003-07-03 BSH Bosch und Siemens Hausgeräte GmbH Washing machine drum
KR100457579B1 (en) * 2002-11-28 2004-11-18 엘지전자 주식회사 drum of drum typed washer
WO2005049909A1 (en) * 2003-11-20 2005-06-02 Arcelik Anonim Sirketi A drum with stiffening corrugations along the seam
WO2005111294A1 (en) * 2004-05-15 2005-11-24 Lg Electronics Inc. Drum of washing machine and method for manufacturing the same
WO2006122839A2 (en) * 2005-05-20 2006-11-23 BSH Bosch und Siemens Hausgeräte GmbH Washing drum for a laundry treating machine
KR100662447B1 (en) 2005-01-07 2007-01-02 엘지전자 주식회사 drum of drum type washing machine
EP1783259A1 (en) * 2005-11-07 2007-05-09 Samsung Electronics Co.,Ltd. Method for manufacturing a rotary drum for drum washing machines and pressing device used therefor
WO2009109527A1 (en) * 2008-03-03 2009-09-11 BSH Bosch und Siemens Hausgeräte GmbH Wash drum for a washing machine and method for producing such a wash drum
EP2169103A1 (en) * 2008-09-24 2010-03-31 Candy S.p.A. Drum for washing, washing/drying, drying machine and the like
WO2013045300A1 (en) * 2011-09-27 2013-04-04 Arcelik Anonim Sirketi A drum and the production method thereof
US8806904B2 (en) 2006-02-15 2014-08-19 Bsh Bosch Und Siemens Hausgeraete Gmbh Washing machine laundry drum
DE102014224078A1 (en) 2014-11-26 2016-06-02 BSH Hausgeräte GmbH A method for producing a rabbet joint in a household appliance component and household appliance component
CN106103829A (en) * 2013-11-29 2016-11-09 阿塞里克股份有限公司 Laundry treatment device including the washing container with laundry protection structure
WO2018121941A1 (en) * 2016-12-27 2018-07-05 Arcelik Anonim Sirketi A drum and its production method
WO2023160335A1 (en) * 2022-02-28 2023-08-31 青岛海尔洗涤电器有限公司 Inner drum of drum-type washing machine, and drum-type washing machine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821366C5 (en) * 1998-05-13 2017-01-19 Electrolux Rothenburg Gmbh Factory And Development Washing machine drum
ES2296424B1 (en) * 2004-02-06 2008-12-16 Bsh Electrodomesticos España S.A. REINFORCEMENT FOR WASHING MACHINE DRUM.
DE102004025354B4 (en) * 2004-05-19 2007-08-30 Miele & Cie. Kg Washing machine drum with folding
KR101122078B1 (en) * 2004-11-10 2012-03-15 엘지전자 주식회사 gas burner of clothes dryer
TR201101157A2 (en) * 2011-02-08 2012-08-22 Bsh Ev Aletleri̇ San. Ve Ti̇c. A.Ş. A drum-type front-loading washing machine

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US3005432A (en) * 1958-07-21 1961-10-24 American Can Co Method of and apparatus for venting side seams of can bodies
DE1871983U (en) * 1963-02-18 1963-05-09 Heinrich Winkelmann SPIN DRUM, IN PARTICULAR FOR SPINTERS.
GB1150543A (en) * 1965-05-14 1969-04-30 Continental Can Co Improvements in or relating to Tubular Bodies

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Publication number Priority date Publication date Assignee Title
US3005432A (en) * 1958-07-21 1961-10-24 American Can Co Method of and apparatus for venting side seams of can bodies
DE1871983U (en) * 1963-02-18 1963-05-09 Heinrich Winkelmann SPIN DRUM, IN PARTICULAR FOR SPINTERS.
GB1150543A (en) * 1965-05-14 1969-04-30 Continental Can Co Improvements in or relating to Tubular Bodies

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6935143B2 (en) 2001-12-21 2005-08-30 BSH Bosch und Siemens Hausgeräte GmbH Washing-machine laundry drum
WO2003054274A1 (en) * 2001-12-21 2003-07-03 BSH Bosch und Siemens Hausgeräte GmbH Washing machine drum
KR100457579B1 (en) * 2002-11-28 2004-11-18 엘지전자 주식회사 drum of drum typed washer
WO2005049909A1 (en) * 2003-11-20 2005-06-02 Arcelik Anonim Sirketi A drum with stiffening corrugations along the seam
US7506425B2 (en) 2004-05-15 2009-03-24 Lg Electronics Inc. Method for manufacturing a drum of a washing machine
WO2005111294A1 (en) * 2004-05-15 2005-11-24 Lg Electronics Inc. Drum of washing machine and method for manufacturing the same
KR100662447B1 (en) 2005-01-07 2007-01-02 엘지전자 주식회사 drum of drum type washing machine
WO2006122839A2 (en) * 2005-05-20 2006-11-23 BSH Bosch und Siemens Hausgeräte GmbH Washing drum for a laundry treating machine
EA010761B1 (en) * 2005-05-20 2008-10-30 Бсх Бош Унд Сименс Хаусгерете Гмбх Washing drum for a laundry treating machine
WO2006122839A3 (en) * 2005-05-20 2007-04-26 Bsh Bosch Siemens Hausgeraete Washing drum for a laundry treating machine
US8011210B2 (en) 2005-05-20 2011-09-06 Bsh Bosch Und Siemens Hausgeraete Gmbh Washing drum for a laundry treating machine
EP1783259A1 (en) * 2005-11-07 2007-05-09 Samsung Electronics Co.,Ltd. Method for manufacturing a rotary drum for drum washing machines and pressing device used therefor
US8806904B2 (en) 2006-02-15 2014-08-19 Bsh Bosch Und Siemens Hausgeraete Gmbh Washing machine laundry drum
WO2009109527A1 (en) * 2008-03-03 2009-09-11 BSH Bosch und Siemens Hausgeräte GmbH Wash drum for a washing machine and method for producing such a wash drum
EP2169103A1 (en) * 2008-09-24 2010-03-31 Candy S.p.A. Drum for washing, washing/drying, drying machine and the like
WO2013045300A1 (en) * 2011-09-27 2013-04-04 Arcelik Anonim Sirketi A drum and the production method thereof
RU2569596C1 (en) * 2011-09-27 2015-11-27 Арчелык Аноним Ширкети Drum and method of its manufacturing
CN106103829A (en) * 2013-11-29 2016-11-09 阿塞里克股份有限公司 Laundry treatment device including the washing container with laundry protection structure
CN106103829B (en) * 2013-11-29 2018-06-26 阿塞里克股份有限公司 Including having the laundry treatment device of the washing container of laundry protection structure
DE102014224078A1 (en) 2014-11-26 2016-06-02 BSH Hausgeräte GmbH A method for producing a rabbet joint in a household appliance component and household appliance component
WO2018121941A1 (en) * 2016-12-27 2018-07-05 Arcelik Anonim Sirketi A drum and its production method
WO2023160335A1 (en) * 2022-02-28 2023-08-31 青岛海尔洗涤电器有限公司 Inner drum of drum-type washing machine, and drum-type washing machine

Also Published As

Publication number Publication date
TR25217A (en) 1993-01-01
KR900018449A (en) 1990-12-21
DE3914475A1 (en) 1990-11-08
ES2047180T3 (en) 1994-02-16
DE59003835D1 (en) 1994-01-27
KR100196463B1 (en) 1999-06-15
ATE98706T1 (en) 1994-01-15
HK91495A (en) 1995-06-16
EP0395859B1 (en) 1993-12-15
DD296127A5 (en) 1991-11-21

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