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DE19952990A1 - Rotary drum washing machine has washing load prevented from direct contact with washing/rinsing apertures in mantle surface of washing drum via hollow rails fitted over apertures - Google Patents

Rotary drum washing machine has washing load prevented from direct contact with washing/rinsing apertures in mantle surface of washing drum via hollow rails fitted over apertures

Info

Publication number
DE19952990A1
DE19952990A1 DE1999152990 DE19952990A DE19952990A1 DE 19952990 A1 DE19952990 A1 DE 19952990A1 DE 1999152990 DE1999152990 DE 1999152990 DE 19952990 A DE19952990 A DE 19952990A DE 19952990 A1 DE19952990 A1 DE 19952990A1
Authority
DE
Germany
Prior art keywords
washing
apertures
drum
rinsing
washing machine
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.)
Withdrawn
Application number
DE1999152990
Other languages
German (de)
Inventor
Ludger Hellkuhl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1999152990 priority Critical patent/DE19952990A1/en
Publication of DE19952990A1 publication Critical patent/DE19952990A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02Rotary receptacles, e.g. drums
    • D06F37/04Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis

Landscapes

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

Abstract

The washing machine has a washing liquid container enclosing a cylindrical washing drum (1), having a mantle surface (1a) provided with apertures (4) for passage of the washing/rinsing liquid. The inside wall of the washing drum has attached hollow rails (3) with a trapezoidal cross-section, fitting over the washing/rinsing liquid apertures.

Description

Die Erfindung betrifft ein Waschmaschine mit einem Laugenbehälter, in dem eine zylinder­ förmige Trommel zur Aufnahme von Waschgut drehbar gelagert ist, wobei der Mantel der Trommel Löcher zum Durchtritt von Wasch-/Spülflüssigkeit besitzt und wobei am Mantel ins Trommelinnere ragende Mitnehmer angeordnet sind.The invention relates to a washing machine with a tub, in which a cylinder shaped drum for receiving laundry is rotatably supported, the jacket of the Drum has holes for the passage of washing / rinsing liquid and in the jacket Protruding drivers inside the drum are arranged.

Bei Waschmaschinen ist es üblich, den Trommelmantel und evtl. auch die Deckflächen mit Löchern zu versehen, damit ein Laugenaustausch zwischen Wäsche und Laugenbehälter gewährleistet ist. Diese Löcher besitzen bei heute üblichen Waschmaschinen Durchmesser in der Größenordnung von 3,5 mm. Dabei werden im Fertigungsprozeß der Trommel zunächst Löcher mit einem Durchmesser von ca. 2,5 mm in ein Blechcoil eingestanzt und anschließend durch einen Prägevorgang, das sogenannte Durchstellen, trichterförmig vertieft und auf 3,5 mm geweitet. Beim Formen und Verschweißen eines zugeschnittenen Coilteils zu einem zylindri­ schen Mantel wird die Vertiefung der Löcher nach außen gerichtet. Dies geschieht zu dem Zweck, daß am Lochrand evtl. vorhandene Grate nicht ins Trommelinnere ragen und so der Kontakt der Wäsche zu diesen Graten vermieden wird. Das Durchstellen und die damit ver­ bundene Strukturierung der Trommelinnenseite ergibt den Effekt, daß einerseits der Anteil der ebenen Oberfläche an der gesamten Mantelfläche verringert und andererseits das in die Trommel einfallende Licht diffus gespiegelt wird. Hierdurch wird zum einen der Eindruck von Solidität und Glanz, also hochwertigem Material vermittelt, außerdem fallen Kratzer oder Verun­ reinigungen weniger auf.In washing machines, it is common to include the drum jacket and possibly also the top surfaces Provide holes for an exchange of lye between laundry and tub is guaranteed. These holes have a diameter in today's washing machines the order of 3.5 mm. Here, in the manufacturing process of the drum first Holes with a diameter of approx. 2.5 mm are punched into a sheet metal coil and then through an embossing process, the so-called through, deepened in a funnel shape and to 3.5 mm widened. When shaping and welding a cut coil part into a cylindrical one The mantle of the hole is directed outwards. This happens to that Purpose so that any burrs on the edge of the hole do not protrude into the inside of the drum and so the Contact of the laundry to avoid these ridges. The putting through and the ver Bound structuring of the inside of the drum gives the effect that on the one hand the proportion of flat surface on the entire lateral surface reduced and on the other hand that in the Drum incident light is reflected diffusely. On the one hand, this gives the impression of Solidity and shine, i.e. high-quality material, and scratches or marks cleaning less.

Bei den vorgenannten Trommeln hat es sich als nachteilig erwiesen, daß die relativ großen Löcher bei Textilien zur Noppenbildung, zu Wäscheschäden und zum Durchtritt von Fäden und Fremdkörpern führen. Außerdem können Grate an den Lochrändern die Wäsche beschädigen. Es wurde deshalb bereits vorgeschlagen, den Lochdurchmesser zu verringern (DE 14 10 985) und/oder die Lochung auf Teilbereiche des Mantels zu begrenzen (DE 28 26 506).With the aforementioned drums, it has proven disadvantageous that the relatively large Holes in textiles for pimples, laundry damage and the passage of threads and Lead foreign bodies. Burrs on the edges of the holes can also damage the laundry. It has therefore already been proposed to reduce the hole diameter (DE 14 10 985) and / or to limit the perforation to partial areas of the jacket (DE 28 26 506).

Es ist außerdem bekannt, an der Innenseite des Trommelmantels Mitnehmer vorzusehen. Diese erstrecken sich in Längsrichtung und parallel zur Trommelachse und besitzen meist einen trapez-, parabel- oder dreieckförmigen Querschnitt. Im Mantelbereich unterhalb der Mitnehmer und in den Mitnehmern selbst können Löcher angeordnet sein, so daß diese als Schöpfeinrichtungen wirken (EP 0 236 282).It is also known to provide drivers on the inside of the drum shell. These extend in the longitudinal direction and parallel to the drum axis and usually have a trapezoidal, parabolic or triangular cross-section. In the coat area below the Drivers and holes in the drivers themselves can be arranged so that these as Scooping devices act (EP 0 236 282).

Der Erfindung stellt sich das Problem, eine Waschmaschine der eingangs dahingehend zu verbessern, daß Kontakte der Wäsche mit den Löchern weitgehend verhindert werden. The invention poses the problem of a washing machine to that effect improve that contacts of the laundry with the holes are largely prevented.  

Erfindungsgemäß wird dieses Problem durch eine Waschmaschine mit den Merkmalen des Patentanspruchs 1 gelöst. Eine vorteilhafte Ausgestaltung der Endung ergibt sich aus dem nachfolgenden Unteranspruch.According to the invention, this problem is solved by a washing machine with the features of Claim 1 solved. An advantageous embodiment of the ending results from the subsequent subclaim.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen rein schematisch dargestellt und wird nachfolgend näher beschrieben. Es zeigtAn embodiment of the invention is shown purely schematically in the drawings and is described in more detail below. It shows

Fig. 1 den Querschnitt durch eine erfindungsgemäß aufgebaute Wasch­ maschinentrommel; Figure 1 shows the cross section through a washing machine drum constructed according to the invention.

Fig. 2 einen Teilschnitt durch die Waschmaschinentrommel gemäß Fig. 1. Fig. 2 is a partial sectional view of the drum washing machine of FIG. 1.

Die erfindungsgemäß ausgebildete Trommelwaschmaschine besitzt einen Laugenbehälter (nicht dargestellt), in dem in bekannter Weise eine Trommel (1) zur Aufnahme von Wäsche drehbar gelagert ist. Der Antrieb (nicht dargestellt) der Trommel (1) erfolgt durch einen Motor direkt oder über einen Keilriemen.The drum washing machine designed according to the invention has a tub (not shown), in which a drum ( 1 ) for receiving laundry is rotatably mounted in a known manner. The drive (not shown) of the drum (1) is effected by a motor directly or via a V-belt.

In den Mantel (1a) der Trommel (1) sind umlaufende Sicken (2) geprägt, die zum Trommel­ äußeren hinweisen. Der Bereich zwischen den Sicken (2) ist mit einem Gefälle zu den Sicken (2) hin versehen. Auf diese Weise wirken die Sicken (2) unter Fliehkraft wie eine Dachrinne.In the jacket ( 1 a) of the drum ( 1 ) surrounding beads ( 2 ) are embossed, which indicate the outside of the drum. The area between the beads ( 2 ) is provided with a slope to the beads ( 2 ). In this way, the beads ( 2 ) act as a gutter under centrifugal force.

Am Trommelmantel oder an den Deckflächen sind trapezförmige Mitnehmer (3) befestigt, die sich über den gesamten Mantel (1a) und parallel zur Trommelachse (1b) erstrecken. Im Bereich unter diesen Mitnehmern (3) sind Durchbrüche in Form von Bohrungen (4) angeordnet, die während des Waschvorgangs zum Schöpfen von Wasser und während des Schleuderns zum Entwässern verwendet werden.Trapezoidal drivers ( 3 ) are attached to the drum jacket or to the cover surfaces, which extend over the entire jacket ( 1 a) and parallel to the drum axis ( 1 b). In the area under these drivers ( 3 ) there are openings in the form of bores ( 4 ) which are used for scooping water during the washing process and for dewatering during the spinning.

Claims (2)

1. Waschmaschine mit einem Laugenbehälter, in dem eine zylinderförmige Trommel (1) zur Aufnahme von Waschgut drehbar gelagert ist, wobei der Mantel (1a) der Trommel (1) Löcher (4) zum Durchtritt von Wasch-/Spülflüssigkeit besitzt und wobei am Mantel (1a) ins Trommelinnere ragende Mitnehmer (3) angeordnet sind, dadurch gekennzeichnet, daß der Mantel (1a) mit umlaufenden Sicken (2) versehen ist, welche sich in seiner Um­ fangsrichtung erstrecken, und daß die Löcher (4) nur in dem unter den Mitnehmern (3) befindlichen Mantelbereich angeordnet sind.1. washing machine with a tub, in which a cylindrical drum ( 1 ) for receiving laundry is rotatably mounted, the jacket ( 1 a) of the drum ( 1 ) has holes ( 4 ) for the passage of washing / rinsing liquid and wherein on Sheath ( 1 a) in the drum inside protruding driver ( 3 ) are arranged, characterized in that the sheath ( 1 a) is provided with circumferential beads ( 2 ) which extend in its circumferential direction, and that the holes ( 4 ) only are arranged in the jacket area located under the drivers ( 3 ). 2. Waschmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Mantel (1a) in dem Bereich zwischen den Sicken (2) ein Gefälle zu den Sicken (2) hin aufweist.2. Washing machine according to claim 1, characterized in that the jacket ( 1 a) in the region between the beads ( 2 ) has a slope to the beads ( 2 ).
DE1999152990 1999-11-04 1999-11-04 Rotary drum washing machine has washing load prevented from direct contact with washing/rinsing apertures in mantle surface of washing drum via hollow rails fitted over apertures Withdrawn DE19952990A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999152990 DE19952990A1 (en) 1999-11-04 1999-11-04 Rotary drum washing machine has washing load prevented from direct contact with washing/rinsing apertures in mantle surface of washing drum via hollow rails fitted over apertures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999152990 DE19952990A1 (en) 1999-11-04 1999-11-04 Rotary drum washing machine has washing load prevented from direct contact with washing/rinsing apertures in mantle surface of washing drum via hollow rails fitted over apertures

Publications (1)

Publication Number Publication Date
DE19952990A1 true DE19952990A1 (en) 2001-05-10

Family

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DE1999152990 Withdrawn DE19952990A1 (en) 1999-11-04 1999-11-04 Rotary drum washing machine has washing load prevented from direct contact with washing/rinsing apertures in mantle surface of washing drum via hollow rails fitted over apertures

Country Status (1)

Country Link
DE (1) DE19952990A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102008006511A1 (en) * 2008-01-29 2009-07-30 BSH Bosch und Siemens Hausgeräte GmbH Laundry drum for a laundry treatment machine
WO2011134736A1 (en) * 2010-04-28 2011-11-03 BSH Bosch und Siemens Hausgeräte GmbH Drum of laundry care device
EP2700744A1 (en) 2012-08-20 2014-02-26 Miele & Cie. KG Drum for a washing machine
US8893532B2 (en) 2008-02-14 2014-11-25 Bsh Bosch Und Siemens Hausgeraete Drum for a laundry treatment machine
EP3575474A1 (en) * 2018-05-30 2019-12-04 Miele & Cie. KG Washing drum and washing machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP2022882A2 (en) 2007-08-02 2009-02-11 Miele & Cie. KG Barrel for a washing machine and washing machine
DE102008006511A1 (en) * 2008-01-29 2009-07-30 BSH Bosch und Siemens Hausgeräte GmbH Laundry drum for a laundry treatment machine
US8720235B2 (en) 2008-01-29 2014-05-13 Bsh Bosch Und Siemens Hausgeraete Gmbh Laundry drum for a laundry treating machine
US8893532B2 (en) 2008-02-14 2014-11-25 Bsh Bosch Und Siemens Hausgeraete Drum for a laundry treatment machine
WO2011134736A1 (en) * 2010-04-28 2011-11-03 BSH Bosch und Siemens Hausgeräte GmbH Drum of laundry care device
EP2700744A1 (en) 2012-08-20 2014-02-26 Miele & Cie. KG Drum for a washing machine
EP3575474A1 (en) * 2018-05-30 2019-12-04 Miele & Cie. KG Washing drum and washing machine
DE102018112923A1 (en) * 2018-05-30 2019-12-05 Miele & Cie. Kg Washing drum and washing machine

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