EP0083302A1 - Drum for washing machines and/or centrifugal dryers and its use in washing machines or centrifugal dryers - Google Patents

Drum for washing machines and/or centrifugal dryers and its use in washing machines or centrifugal dryers Download PDF

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Publication number
EP0083302A1
EP0083302A1 EP82810505A EP82810505A EP0083302A1 EP 0083302 A1 EP0083302 A1 EP 0083302A1 EP 82810505 A EP82810505 A EP 82810505A EP 82810505 A EP82810505 A EP 82810505A EP 0083302 A1 EP0083302 A1 EP 0083302A1
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EP
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Prior art keywords
drum
webs
washing
wall
filling opening
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EP82810505A
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German (de)
French (fr)
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EP0083302B1 (en
EP0083302B2 (en
Inventor
Jürgen Dipl.-Ing. Schmiedehaus
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Maschinenfabrik Ad Schulthess and Co AG
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Maschinenfabrik Ad Schulthess and Co AG
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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
    • 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
    • D06F95/00—Laundry systems or arrangements of apparatus or machines; Mobile laundries 

Definitions

  • the present invention relates to a drum for washing machines and / or centrifugal centrifuges according to the preamble of independent claim 1, as well as a use in washing machines according to the preamble of independent claim 10 and a use in dry centrifuges according to the preamble of independent claim 11.
  • these webs can be designed such that they reinforce the one drum wall on which the bearing journal is held. In addition, they also serve to cause a movement of the liquor and the items to be washed when the drum rotates during the washing process.
  • drums in washing machines are used as centrifuges to dry the laundry, then one drum works diameter of 475 mm and a speed of 1100 rpm an acceleration of 320 G on the laundry.
  • accelerations of 740 G act on the laundry at 1400 or 1200 rpm.
  • the drum wall 1 perforated in the form of a sieve is provided with four driver webs 2-5 arranged distributed over the circumference.
  • These carrier webs consist of an elastic material, preferably of an artificial rubber, which does not react with the detergents.
  • these driver webs 2-5 are made from a tubular profile. But you could also be completely or partially filled with a soft elastic foam rubber.
  • the resetting force of the rubber-elastic carrier webs should be smaller than the greatest centripetal force that occurs, but greater than a centripetal force at a lower speed than the decay speed, such as the loosening speed or the washing speed.
  • the height of the driver webs should be about 1/10 of the drum diameter in the case of large centrifugal centrifuges, and that it can be relatively larger in household washing machines in order to ensure good flexing of the laundry in the fleet.
  • 1/8 to 1/12 of the drum diameter can be specified for the height of the driver webs.
  • a preferred use of such a drum is in large-scale washing systems with a clocked washing process, in which the laundry is introduced from the unclean side into a washing tube and washed on the opposite clean side is fed to a drying system. Because these systems mostly work automatically, the use of this drum has a special advantage.
  • a Centrifugal centrifuge 20 with a drum 21 with two drum bottoms 22, 23 and a drum wall 24 is rotatably mounted in a tub 25, which is elastically suspended in a housing 33, and is driven in rotation by a drive motor 27 and a belt drive 28 on the journal 26.
  • the housing 33 is tiltably mounted at one point in the area above the drum wall 22 on an axis of rotation 30.
  • the axis of rotation can be attached to a support frame, not shown, in the usual way.
  • a collecting funnel 31 Below the housing 33 there is a collecting funnel 31 and below this a conveyor belt 32.
  • a conveyor system could also be provided instead of the conveyor belt.
  • the items to be washed are introduced into the drum 21 with part of the rinsing water.
  • the drum 21 can be rotated at a distribution speed so that the laundry can be distributed over the entire circumference.
  • the housing 33 is tilted into a position in which the axis of the drum lies horizontally. In this position, the speed is increased to the usual spin speed of 900 to 1200 rpm. The items to be washed are pressed against the drum wall 24. As a result of The rubber-elastic carrier webs are pressed together. After the water content has been reduced to the residual moisture required for ironing, the speed is reduced to a much lower loosening speed.
  • the restoring force of the elastic material of the driver webs can detach the laundry from the drum wall, so that the laundry is loosened.
  • phase 3 according to FIG. 5 the housing 33 is tilted backwards so that the axis of the drum 21 forms an acute angle with the horizontal and the filling opening 29 is directed against the collecting funnel 31. With a rotation at the loosening speed, the laundry falls down and can freely pass through the filling opening 29 into the collecting funnel 31 and on to the conveyor belt system 32.
  • the advantage of the proposed elastic carrier webs 2-5 is clearly shown in that after switching from the high spin speed to the loosening speed, the tubular compressed laundry 6 according to FIG. 2 by the restoring force of the carrier webs 2-5 is loosened so that no additional aids such as compressed air or the like are required to remove the laundry from the drum.
  • the driver webs must be larger in relation to the drum diameter than in the centrifugal centrifuge, so that the laundry is taken along at the washing speed. If the spin speed is switched over here, the driver webs are also pressed together, so that the laundry is relaxed when it is pressed against the drum wall and, as the speed decreases, the laundry is detached from the drum wall and can fall off, so that the laundry loosens out can be removed from the drum.

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

Abstract

1. A washing apparatus comprising a washing tube (10) with a loading opening at one end and a delivery funnel (11) at the other end and with a timed washing process and an automatic unloading cycle, the delivery funnel (11) opening towards a spinning drum (21) which comprises two drum floors (22, 23) which are arranged at a distance from one another and are connected to one another by a drum wall (24) perforated in the manner of a sieve and one of which comprises a filling opening (29) and the other of which is adapted for holding a bearing journal (26) for the pivot mounting of the drum (21), characterized in that the drum (21) is disposed in a housing (25) tiltably mounted on a pivot bearing (30) above the front drum wall (22) with the filling opening (29), in such a way that in a first operative position - with the drum (21) at a standstill or at most slowly rotating - the filling opening (29) rests on the delivery funnel (11) of the washing machine (10) ; in a second operative position, in which the axis of the drum extends horizontally, the drum (21) can be driven at a high rotational speed ; and in a third operative position can be brought into an emptying position with the filling opening (29) orientated downwards, in which the items of washing are released from the drum wall (24) at a loosening speed, and the drum wall comprises a plurality of driving ribs (2 to 5) which are arranged parallel to its axis of rotation and constructed in the form of U-shaped raised portions and which consist of a resilient material at least in the region of the rear portion.

Description

Die vorliegende Erfindung betrifft eine Trommel für Waschmaschinen und/oder Schleuderzentrifugen gemäss dem Oberbegriff des unabhängigen Patentanspruchs 1, sowie eine Verwendung in Waschmaschinen gemäss dem Oberbegriff des Nebenanspruchs 10 und eine Verwendung in Trockenzentrifugen gemäss dem Oberbegriff des Nebenanspruchs 11.The present invention relates to a drum for washing machines and / or centrifugal centrifuges according to the preamble of independent claim 1, as well as a use in washing machines according to the preamble of independent claim 10 and a use in dry centrifuges according to the preamble of independent claim 11.

Bei Waschmaschinen ist es seit längerem bekannt, auf der Trommelinnenseite Stege parallel zur Trommelachse anzubringen. Gemäss der CH-A 503'826 können diese Stege derart ausgelegt sein, dass sie die eine Trommelwand, an der der Lagerzapfen gehaltert ist, verstärken. Sie dienen daneben aber auch dazu, beim Waschvorgang eine Bewegung der Flotte und des Waschgutes beim Rotieren der Trommel zu bewirken.In washing machines, it has long been known to attach webs parallel to the drum axis on the inside of the drum. According to CH-A 503'826, these webs can be designed such that they reinforce the one drum wall on which the bearing journal is held. In addition, they also serve to cause a movement of the liquor and the items to be washed when the drum rotates during the washing process.

Wenn die Trommeln in Waschmaschinen als Zentrifugen zur Trocknung der Wäsche benützt werden, so wirkt bei einem Trommeldurchmesser von 475 mm und einer Drehzahl von 1100 U/min eine Beschleunigung von 320 G auf die Wäsche. Bei Industriewaschanlagen mit Trommeln mit einem Durchmesser zwischen 680 und 920 mm wirken bei 1400 bzw. 1200 U/min jeweils Beschleunigungen von 740 G auf die Wäsche ein.If the drums in washing machines are used as centrifuges to dry the laundry, then one drum works diameter of 475 mm and a speed of 1100 rpm an acceleration of 320 G on the laundry. In industrial washing systems with drums with a diameter between 680 and 920 mm, accelerations of 740 G act on the laundry at 1400 or 1200 rpm.

Aus diesen Zahlen lässt sich leicht ersehen, dass derart behandeltes Wäschegut an der Trommelwand festklebt. Gemäss der DE-A 28 01 594 wird deshalb vorgeschlagen, entweder im Trommelinnern einen Unterdruck oder von aussen einen Ueberdruck zur Wirkung zu bringen, um dadurch die Wäsche von der Trommelwand zu lösen.It can easily be seen from these figures that laundry treated in this way sticks to the drum wall. According to DE-A 28 01 594, it is therefore proposed to apply a negative pressure either inside the drum or an excess pressure from the outside, in order to thereby detach the laundry from the drum wall.

In Industriewaschanlagen mit mehreren auf dem Umfang der Trommelwand verteilt angeordneten Mitnehmerstegen kann festgestellt werden, dass die Wäschestücke infolge der oben angegebenen Kräfte in die Hohlkehlen an den Uebergangsstellen von den Mitnehmerstegen zur Trommelwand gepresst und dadurch gestreckt werden, was fallweise zu Rissen im Gewebe führen kann.In industrial washing systems with several carrier webs distributed around the circumference of the drum wall, it can be determined that the items of laundry are pressed into the fillets at the transition points from the carrier webs to the drum wall and thereby stretched as a result of the forces specified above, which in some cases can lead to tears in the fabric.

Es ist deshalb eine Aufgabe der Erfindung, eine Trommel für Waschmaschinen und/oder Schleuderzentrifugen zu schaffen, bei der Mittel vorhanden sind, durch die die Wäschestücke nach Abschalten der Schleuderdrehzahl selbsttätig von der Trommelwand gelöst werden und durch die die Wäschestücke bei den hohen, durch die Zentripetalkraft erzeugten Belastungen nicht zerrissen werden können.It is therefore an object of the invention to provide a drum for washing machines and / or centrifuges in which there are means by which the laundry items after switching off the spin speed are automatically detached from the drum wall and through which the items of laundry cannot be torn at the high loads generated by the centripetal force.

Erfindungsgemäss wird dies bei einer Trommel durch die Merkmale im kennzeichnenden Teil des unabhängigen Patentanspruchs 1 erreicht.According to the invention, this is achieved in a drum by the features in the characterizing part of independent patent claim 1.

Besonders vorteilhafte Verwendungen dieser Trommel für Waschmaschinen oder Schleuderzentrifugen sind in den kennzeichnenden Teilen der Nebenansprüche 10 und 11 gekennzeichnet.Particularly advantageous uses of this drum for washing machines or centrifuges are characterized in the characterizing parts of the dependent claims 10 and 11.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung beschrieben. Es zeigen:

  • Fig. 1 eine Schnittansicht einer Trommel gemäss einer Schnittebene senkrecht zur Trommelachse in ruhendem Zustand,
  • Fig. 2 eine Schnittansicht ähnlich derjenigen gemäss Fig. 1, jedoch mit den Mitnehmerstegen in einer Betriebsphase,
  • Fig. 3 bis Fig. 5 je einen Aufriss einer Taktwaschanlage mit einer Schleuderzentrifuge mit einer Trommel nach Fig. 1 in drei verschiedenen Betriebslagen.
An embodiment of the invention is described below with reference to the drawing. Show it:
  • 1 is a sectional view of a drum according to a sectional plane perpendicular to the drum axis in the stationary state,
  • 2 is a sectional view similar to that of FIG. 1, but with the driver webs in an operating phase,
  • 3 to 5 each show an elevation of a cycle washing system with a centrifugal centrifuge with a drum according to FIG. 1 in three different operating positions.

Die siebartig gelochte Trommelwand 1 ist gemäss Fig. 1 mit vier auf dem Umfang verteilt angeordneten Mitnehmerstegen 2 - 5 versehen. Diese Mitnehmerstege bestehen aus einem elastischen Material, vorzugsweise aus einem künstlichen Kautschuk, der mit den Waschmitteln nicht reagiert. Gemäss der dargestellten Form sind diese Mitnehmerstege 2 - 5 aus einem rohrartigen Profil hergestellt. Sie könnten aber auch mit einem weichelastischen Schaumgummi ganz oder teilweise ausgefüllt sein.According to FIG. 1, the drum wall 1 perforated in the form of a sieve is provided with four driver webs 2-5 arranged distributed over the circumference. These carrier webs consist of an elastic material, preferably of an artificial rubber, which does not react with the detergents. According to the shape shown, these driver webs 2-5 are made from a tubular profile. But you could also be completely or partially filled with a soft elastic foam rubber.

Die Rückstellkraft der gummielastischen Mitnehmerstege sollte je nach Verwendung in den verschiedenen Maschinen kleiner sein als die grösste auftretende Zentripetalkraft, aber grösser sein als eine Zentripetalkraft bei einer geringeren als der Ausschwingdrehzahl, wie beispielsweise der Lockerungsdrehzahl oder der Waschdrehzahl.Depending on the use in the various machines, the resetting force of the rubber-elastic carrier webs should be smaller than the greatest centripetal force that occurs, but greater than a centripetal force at a lower speed than the decay speed, such as the loosening speed or the washing speed.

Damit wird erreicht, dass bei erhöhter Zentripetalkraft die Mitnehmerstege einsinken und dadurch der Zug auf das Waschgut verringert wird, und dass bei geringerer Drehzahl, wie der üblichen Lockerungsdrehzahl, die Wäsche durch die Rückstellkraft der gummielastischen Stege von der Trommelwand gelöst wird und ohne weitere Massnahmen infolge der Schwerkraft nach unten fallen kann.This ensures that with increased centripetal force, the driver webs sink in, thereby reducing the tension on the laundry, and that at a lower speed, such as the usual loosening speed, the laundry is released from the drum wall by the restoring force of the rubber-elastic webs and can fall down due to gravity without further measures.

Es hat sich gezeigt, dass die Höhe der Mitnehmerstege bei grossen Schleuderzentrifugen etwa 1/10 des Trommeldurchmessers sein sollte, und dass sie bei Haushaltwaschmaschinen relativ grösser sein kann, um eine gute Walkarbeit der Wäsche in der Flotte zu gewährleisten. Somit kann als Faustregel für die Höhe der Mitnehmerstege 1/8 bis 1/12 des Trommeldurchmessers angegeben werden.It has been shown that the height of the driver webs should be about 1/10 of the drum diameter in the case of large centrifugal centrifuges, and that it can be relatively larger in household washing machines in order to ensure good flexing of the laundry in the fleet. As a rule of thumb, 1/8 to 1/12 of the drum diameter can be specified for the height of the driver webs.

Eine vorzugsweise Verwendung einer solchen Trommel ist bei Grosswaschanlagen mit getaktetem Waschvorgang, bei dem die Wäsche von der unreinen Seite her in eine Waschröhre eingeführt wird und auf der gegenüberliegenden reinen Seite gewaschen einer Trockenanlage zugeführt wird. Weil diese Anlagen meist selbsttätig arbeiten, hat die Verwendung dieser Trommel einen besonderen Vorteil.A preferred use of such a drum is in large-scale washing systems with a clocked washing process, in which the laundry is introduced from the unclean side into a washing tube and washed on the opposite clean side is fed to a drying system. Because these systems mostly work automatically, the use of this drum has a special advantage.

Gemäss Fig. 3 - 5 wird der Ablaufzyklus eines Trockenvorganges skizziert. Von einer Waschröhre 10 ist die Ausgabeseite mit dem Abgabetrichter 11, der Laufschiene 12 und einer Schleuse 13 schematisch im Schnitt dargestellt. Eine Schleuderzentrifuge 20 mit einer Trommel 21 mit zwei Trommelböden 22, 23 und einer Trommelwand 24 ist in einem Laugenbehälter 25, der in einem Gehäuse 33 elastisch aufgehängt ist, drehbar gelagert und wird durch einen Antriebsmotor 27 und einen Riemenantrieb 28 am Lagerzapfen 26 rotierend angetrieben. Das Gehäuse 33 ist an einer Stelle im Gebiet über der Trommelwand 22 an einer Drehachse 30 kippbar gelagert. Die Drehachse kann in üblicher Weise an einem nicht dargestellten Stützgestell befestigt sein.3-5, the sequence cycle of a drying process is outlined. The output side of a washing tube 10 with the discharge funnel 11, the running rail 12 and a lock 13 is shown schematically in section. A Centrifugal centrifuge 20 with a drum 21 with two drum bottoms 22, 23 and a drum wall 24 is rotatably mounted in a tub 25, which is elastically suspended in a housing 33, and is driven in rotation by a drive motor 27 and a belt drive 28 on the journal 26. The housing 33 is tiltably mounted at one point in the area above the drum wall 22 on an axis of rotation 30. The axis of rotation can be attached to a support frame, not shown, in the usual way.

Unterhalb des Gehäuses 33 befindet sich ein Auffangtrichter 31 und unter diesem ein Förderband 32. Anstelle des Förderbandes könnte auch eine Förderwagenanlage vorgesehen sein.Below the housing 33 there is a collecting funnel 31 and below this a conveyor belt 32. A conveyor system could also be provided instead of the conveyor belt.

In der gegenseitigen Stellung von Waschröhre 10 und Schleuderzentrifuge 20 wird das Waschgut mit einem Teil des Spülwassers in die Trommel 21 hineingeführt. Die Trommel 21 kann dabei mit einer Verteildrehzahl rotiert werden, damit das Waschgut sich auf dem gesamten Umfang verteilen kann.In the mutual position of the washing tube 10 and centrifugal centrifuge 20, the items to be washed are introduced into the drum 21 with part of the rinsing water. The drum 21 can be rotated at a distribution speed so that the laundry can be distributed over the entire circumference.

In der zweiten Phase gemäss Fig. 4 wird das Gehäuse 33 in eine Lage gekippt, bei der die Achse der Trommel horizontal liegt. In dieser Stellung wird die Drehzahl auf die übliche Schleuderdrehzahl von 900 bis 1200 U/min erhöht. Dabei wird das Waschgut gegen die Trommelwand 24 gepresst. Infolge der Anpresskraft werden die gummielastischen Mitnehmerstege zusammengedrückt. Nachdem der Wassergehalt auf die zum Bügeln notwendige Restfeuchtigkeit verringert wurde, wird die Drehzahl auf eine viel geringere Lockerungsdrehzahl verringert.In the second phase according to FIG. 4, the housing 33 is tilted into a position in which the axis of the drum lies horizontally. In this position, the speed is increased to the usual spin speed of 900 to 1200 rpm. The items to be washed are pressed against the drum wall 24. As a result of The rubber-elastic carrier webs are pressed together. After the water content has been reduced to the residual moisture required for ironing, the speed is reduced to a much lower loosening speed.

Indem die Zentripetalkraft dabei nachlässt, kann die Rückstellkraft des elastischen Materials der Mitnehmerstege das Waschgut von der Trommelwand lösen, so dass die Wäsche gelockert wird.Because the centripetal force decreases, the restoring force of the elastic material of the driver webs can detach the laundry from the drum wall, so that the laundry is loosened.

In der Phase 3 gemäss Fig. 5 wird das Gehäuse 33 nach hinten gekippt, so dass die Achse der Trommel 21 einen spitzen Winkel mit der Horizontalen einschliesst und die Einfüllöffnung 29 gegen den Auffangtrichter 31 gerichtet ist. Mit einer Rotation mit der Lockerungsdrehzahl fällt die Wäsche nach unten und kann durch die Einfüllöffnung 29 in freiem Fall in den Auffangtrichter 31 und weiter zur Förderbandanlage 32 gelangen.In phase 3 according to FIG. 5, the housing 33 is tilted backwards so that the axis of the drum 21 forms an acute angle with the horizontal and the filling opening 29 is directed against the collecting funnel 31. With a rotation at the loosening speed, the laundry falls down and can freely pass through the filling opening 29 into the collecting funnel 31 and on to the conveyor belt system 32.

Bei einem solchen Ablauf zeigt sich der Vorteil der vorgeschlagenen elastischen Mitnehmerstege 2 - 5 deutlich, indem nach dem Umschalten von der hohen Schleuderdrehzahl auf die Lockerungsdrehzahl die rohrförmig zusammengepresste Wäsche 6 gemäss Fig. 2 durch die Rückstellkraft der Mitnehmerstege 2 - 5 gelockert wird, so dass keine zusätzlichen Hilfsmittel wie Pressluft oder dergleichen benötigt werden, um die Wäsche aus der Trommel zu entfernen.With such a sequence, the advantage of the proposed elastic carrier webs 2-5 is clearly shown in that after switching from the high spin speed to the loosening speed, the tubular compressed laundry 6 according to FIG. 2 by the restoring force of the carrier webs 2-5 is loosened so that no additional aids such as compressed air or the like are required to remove the laundry from the drum.

Die zweite Anwendung in einer Haushalt-Waschmaschine wurde nicht gezeichnet, weil diese jedem Fachmann bekannt ist. Auch hier haben dieselben elastischen Mitnehmerstege dieselben Vorteile, wie sie vordem beschrieben wurden. Hier müssen die Mitnehmerstege in bezug auf den Trommeldurchmesser grösser sein als bei der Schleuderzentrifuge, damit die Wäsche bei Waschdrehzahl mitgenommen wird. Wenn hierbei auf Schleuderdrehzahl umgeschaltet wird, werden die Mitnehmerstege ebenfalls zusammengepresst, so dass die Wäsche entspannt wird, wenn sie gegen die Trommelwand gepresst wird und bei abnehmender Drehzahl wird die Wäsche von der Trommelwand gelöst und kann hinunterfallen, so dass die Wäsche in lockerer Form aus der Trommel entnommen werden kann.The second application in a household washing machine was not drawn because it is known to every specialist. Here, too, the same elastic carrier webs have the same advantages as described previously. Here, the driver webs must be larger in relation to the drum diameter than in the centrifugal centrifuge, so that the laundry is taken along at the washing speed. If the spin speed is switched over here, the driver webs are also pressed together, so that the laundry is relaxed when it is pressed against the drum wall and, as the speed decreases, the laundry is detached from the drum wall and can fall off, so that the laundry loosens out can be removed from the drum.

Claims (12)

1. Trommel für Waschmaschinen und/oder Schleuderzentrifugen, bestehend aus zwei im Abstand voneinander angeordneten, durch eine siebartig gelochte Trommelwand miteinander verbundenen Trommelböden, von denen der eine eine Einfüllöffnung aufweist und der andere zur Halterung eines Lagerzapfens für die Drehlagerung der Trommel eingerichtet ist, wobei die Trommelwand mehrere, parallel zur Achse angeordnete Mitnehmerstege aufweist, dadurch gekennzeichnet, dass die als U-förmige Erhebungen ausgebildeten Stege (2-5) wenigstens im Bereich der Rückenpartie aus einem elastischen Material bestehen.1. Drum for washing machines and / or centrifugal centrifuges, consisting of two spaced-apart drum floors connected to one another by a sieve-like perforated drum wall, one of which has a filling opening and the other of which is designed to hold a bearing journal for the rotary bearing of the drum, wherein the drum wall has a plurality of driver webs arranged parallel to the axis, characterized in that the webs (2-5) designed as U-shaped elevations consist of an elastic material at least in the region of the back. 2. Trommel nach Patentanspruch 1, dadurch gekennzeichnet, dass die Stege (2-5) vollständig aus elastischem Material bestehen.2. Drum according to claim 1, characterized in that the webs (2-5) consist entirely of elastic material. 3. Trommel nach Patentanspruch 2, dadurch gekennzeichnet, dass die Stege (2-5) als Hohlprofil ausgebildet sind und beidseits mit Abschlussmitteln zur Verhinderung des Eindringens von Waschgut in den Hohlraum ausgerüstet sind.3. Drum according to claim 2, characterized in that the webs (2-5) are designed as a hollow profile and are equipped on both sides with closing means to prevent the penetration of laundry into the cavity. 4. Trommel nach Patentanspruch 3, dadurch gekennzeichnet, dass die Stege beidseits bis nahe an die Trommelböden (22,23) herangeführt sind.4. Drum according to claim 3, characterized in that the webs on both sides are brought close to the drum bottoms (22, 23). 5. Trommel nach einem der Patentansprüche 1 bis 4, dadurch gekennzeichnet, dass die Stege (2-5) eine Höhe über der Trommelwand haben, die im Bereich zwischen 1/8 bis 1/12 des Trommeldurchmessers liegt.5. Drum according to one of the claims 1 to 4, characterized in that the webs (2-5) have a height above the drum wall which is in the range between 1/8 to 1/12 of the drum diameter. 6. Trommel nach Patentanspruch 5, dadurch gekennzeichnet, dass die Stege (2-5) auf dem Umfang der Trommelwand verteilt angeordnet sind.6. Drum according to claim 5, characterized in that the webs (2-5) are arranged distributed over the circumference of the drum wall. 7. Trommel nach Patentanspruch 6, dadurch gekennzeichnet, dass der Hohlraum in den Mitnehmerstegen wenigstens an den Enden durch ein weichelastisches Material ausgefüllt ist.7. Drum according to claim 6, characterized in that the cavity in the driver webs is filled at least at the ends by a flexible material. 8. Trommel nach Patentanspruch 7, dadurch gekennzeichnet, dass das weichelastische Material Schaumgummi ist.8. Drum according to claim 7, characterized in that the soft elastic material is foam rubber. 9. Trommel nach Patentanspruch 2, dadurch gekennzeichnet, dass das elastische Material ein Kunstkautschuk ist.9. Drum according to claim 2, characterized in that the elastic material is a synthetic rubber. 10. Verwendung der Trommel nach Patentanspruch 1 in einer Waschmaschine als Wasch- und Schleudertrommel, dadurch gekennzeichnet, dass die Rückstellkraft des elastischen Materials grösser ist als das Gewicht der Flotte und der Wäschestücke, aber geringer ist als die bei Schleuderdrehzahl auf die Wäschestücke einwirkende Zentripetalkraft.10. Use of the drum according to claim 1 in a washing machine as a washing and spinning drum, characterized in that the restoring force of the elastic material is greater than the weight of the liquor and the laundry items, but is less than the centripetal force acting on the laundry items at the spin speed. 11. Verwendung der Trommel nach Patentanspruch 1 in einer Waschanlage mit einer Waschtrommel für eine Trennung von reiner/unreiner Seite und selbsttätigem Entladezyklus, dadurch gekennzeichnet, dass die Trommel (21) in einem an einem Drehlager (30) oberhalb der vorderen Trommelwand (22) mit der Einfüllöffnung (29) kippbar gelagerten Gehäuse (25) untergebracht ist, derart, dass in einer ersten Arbeitsstellung bei stillstehender oder höchstens langsam rotierender Trommel (21) die Einfüllöffnung (29) am Abgabetrichter (11) der Waschmaschine (10) anliegt, in einer zweiten Arbeitsstellung, bei der die Trommelachse horizontal verläuft, die Trommel (21) mit hoher Drehzahl antreibbar ist, und in einer dritten Arbeitsstellung in eine Entleerungsstellung mit nach unten gerichteter Einfüllöffnung (29) bringbar ist, in der die Wäschestücke bei Lockerungsdrehzahl durch die Stege (2-5) von der Trommelwand (24) gelöst werden.11. Use of the drum according to claim 1 in a washing system with a washing drum for a separation of clean / unclean side and automatic discharge cycle, characterized in that the drum (21) in a on a pivot bearing (30) above the front drum wall (22) housing (25) which is tiltably mounted with the filling opening (29) is such that in a first working position when the drum (21) is at a standstill or at most slowly rotating, the filling opening (29) bears against the dispensing funnel (11) of the washing machine (10), in a second working position, in which the drum axis runs horizontally, the drum (21) can be driven at high speed and, in a third working position, can be brought into an emptying position with the filling opening (29) pointing downward, in which the items of laundry are loosened by the webs (2-5) from the drum wall (24) at the loosening speed. be solved. 12. Verwendung nach Patentanspruch 11, wobei die Trommel in der genannten zweiten Arbeitsstellung in einer Schleuderdrehzahl und in einer Auflockerungsdrehzahl antreibbar ist, dadurch gekennzeichnet, dass das elastische Material der Stege (2-5) eine Rückstellkraft aufweist, dass das bei Schleuderdrehzahl an die Trommelwand (24) angepresste Wäschegut bei Lockerungsdrehzahl infolge der elastischen Rückstellkraft von der Trommelwand (24) abgelöst wird.12. Use according to claim 11, wherein the drum in said second working position can be driven in a spin speed and in a loosening speed, characterized in that the elastic material of the webs (2-5) has a restoring force that at the spin speed on the drum wall (24) pressed laundry at loosening speed due to the elastic restoring force is detached from the drum wall (24).
EP19820810505 1981-11-30 1982-11-25 Drum for washing machines and/or centrifugal dryers and its use in washing machines or centrifugal dryers Expired EP0083302B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH766481A CH665232A5 (en) 1981-11-30 1981-11-30 DRUM FOR WASHING MACHINES AND / OR SLINGER CENTRIFUGES, WASHING MACHINE OR WASHING SYSTEM WITH SUCH A DRUM.
CH7664/81 1981-11-30

Publications (3)

Publication Number Publication Date
EP0083302A1 true EP0083302A1 (en) 1983-07-06
EP0083302B1 EP0083302B1 (en) 1986-03-26
EP0083302B2 EP0083302B2 (en) 1988-09-28

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EP19820810505 Expired EP0083302B2 (en) 1981-11-30 1982-11-25 Drum for washing machines and/or centrifugal dryers and its use in washing machines or centrifugal dryers

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EP (1) EP0083302B2 (en)
CH (1) CH665232A5 (en)
DE (1) DE3270167D1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0284554A1 (en) * 1987-03-27 1988-09-28 Maschinenfabrik Ad. Schulthess & Co.AG. Washing method and tunnel type washing machine
EP0472840A2 (en) * 1990-08-31 1992-03-04 Zanussi Elettrodomestici S.p.A. Method for making plastic drums for laundry washers and a drum thus made
FR2695657A1 (en) * 1992-09-11 1994-03-18 Pellerin Corp Milnor Apparatus for extracting liquid from fabrics or other water absorbing articles.
GB2272274A (en) * 1992-11-03 1994-05-11 Bosch Siemens Hausgeraete Controlling spinning in a drum washing machine
WO2004029351A2 (en) * 2002-09-20 2004-04-08 Herbert Kannegiesser Gmbh Method for the drying of laundry and corresponding device
DE102011006697A1 (en) * 2011-04-04 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Laundry drum for washing machine, has drivers that are extended radially inward and are distributed in circumferential direction of drum to occupy major portion of axial dimension of drum
WO2013041374A1 (en) * 2011-09-20 2013-03-28 BSH Bosch und Siemens Hausgeräte GmbH Laundry drum having a drum profile for improved spin-drying action
DE102012215430A1 (en) * 2012-08-30 2014-03-27 BSH Bosch und Siemens Hausgeräte GmbH Carrier for a laundry drum
CN107587310A (en) * 2017-10-20 2018-01-16 珠海格力电器股份有限公司 Washing machine inner barrel and washing machine with same
WO2019056684A1 (en) * 2017-09-25 2019-03-28 Midea Group Co., Ltd. Laundry drying machine with adjustable baffle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008029911A1 (en) 2008-06-24 2009-12-31 BSH Bosch und Siemens Hausgeräte GmbH Drum for washing machines and dryers comprises a flat catch side having a surface which is partly provided with a material which is gentle to laundry
KR101750391B1 (en) 2015-02-09 2017-06-23 장명동 Drum type washing machine for sneakers
CN112387428B (en) * 2020-12-04 2021-11-16 成都高分离心机有限公司 Spiral pusher of centrifugal machine and horizontal spiral centrifugal machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE923247C (en) * 1951-08-23 1955-02-07 Westinghouse Electric Corp Washing machine and spin dryer
US3364588A (en) * 1966-09-16 1968-01-23 Gen Electric Clothes treating machine with automatic unloading means
DE1990327U (en) * 1968-08-01 Siemens-Electro gerate Gesellschaft mit beschrankter Haftung, 1000 Berlin und 8000 München Laundry treatment machine
DE6606127U (en) * 1967-06-14 1970-12-17 Bosch Hausgeraete Gmbh WASHING MACHINE
DE1963811A1 (en) * 1969-12-19 1971-06-24 Kunstatofferk Gebr Anger Gmbh Prodn of extruded, thermoplastic, integral - foam hollow bodies

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1990327U (en) * 1968-08-01 Siemens-Electro gerate Gesellschaft mit beschrankter Haftung, 1000 Berlin und 8000 München Laundry treatment machine
DE923247C (en) * 1951-08-23 1955-02-07 Westinghouse Electric Corp Washing machine and spin dryer
US3364588A (en) * 1966-09-16 1968-01-23 Gen Electric Clothes treating machine with automatic unloading means
DE6606127U (en) * 1967-06-14 1970-12-17 Bosch Hausgeraete Gmbh WASHING MACHINE
DE1963811A1 (en) * 1969-12-19 1971-06-24 Kunstatofferk Gebr Anger Gmbh Prodn of extruded, thermoplastic, integral - foam hollow bodies

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0284554A1 (en) * 1987-03-27 1988-09-28 Maschinenfabrik Ad. Schulthess & Co.AG. Washing method and tunnel type washing machine
US4879887A (en) * 1987-03-27 1989-11-14 Maschinenfabrik Ad. Schulthess & Co. Ag Continuous flow washing machine
EP0472840A2 (en) * 1990-08-31 1992-03-04 Zanussi Elettrodomestici S.p.A. Method for making plastic drums for laundry washers and a drum thus made
EP0472840A3 (en) * 1990-08-31 1992-06-03 Zanussi Elettrodomestici S.P.A. Method for making plastic drums for laundry washers and a drum thus made
FR2695657A1 (en) * 1992-09-11 1994-03-18 Pellerin Corp Milnor Apparatus for extracting liquid from fabrics or other water absorbing articles.
US5318705A (en) * 1992-09-11 1994-06-07 Pellerin Milnor Corporation Apparatus for use in extracting liquid from cloth or other water-absorbing goods
USRE36688E (en) * 1992-09-11 2000-05-09 Pellerin Milnor Corporation Apparatus for use in extracting liquid from cloth or other water-absorbing goods
GB2272274A (en) * 1992-11-03 1994-05-11 Bosch Siemens Hausgeraete Controlling spinning in a drum washing machine
GB2272274B (en) * 1992-11-03 1996-03-20 Bosch Siemens Hausgeraete Method of controlling spinning operation of a drum washing machine
WO2004029351A3 (en) * 2002-09-20 2004-08-05 Kannegiesser H Gmbh Co Method for the drying of laundry and corresponding device
WO2004029351A2 (en) * 2002-09-20 2004-04-08 Herbert Kannegiesser Gmbh Method for the drying of laundry and corresponding device
US7353622B2 (en) 2002-09-20 2008-04-08 Herbert Kannegiesser Gmbh Method and device for the drying of laundry
DE102011006697A1 (en) * 2011-04-04 2012-10-04 BSH Bosch und Siemens Hausgeräte GmbH Laundry drum for washing machine, has drivers that are extended radially inward and are distributed in circumferential direction of drum to occupy major portion of axial dimension of drum
DE102011006697B4 (en) 2011-04-04 2022-10-13 BSH Hausgeräte GmbH laundry drum of a washing machine
WO2013041374A1 (en) * 2011-09-20 2013-03-28 BSH Bosch und Siemens Hausgeräte GmbH Laundry drum having a drum profile for improved spin-drying action
DE102012215430A1 (en) * 2012-08-30 2014-03-27 BSH Bosch und Siemens Hausgeräte GmbH Carrier for a laundry drum
EP2703550A3 (en) * 2012-08-30 2015-07-29 BSH Hausgeräte GmbH Paddle for a laundry drum
WO2019056684A1 (en) * 2017-09-25 2019-03-28 Midea Group Co., Ltd. Laundry drying machine with adjustable baffle
US10487441B2 (en) 2017-09-25 2019-11-26 Midea Group Co., Ltd. Laundry drying machine with adjustable baffle
CN107587310A (en) * 2017-10-20 2018-01-16 珠海格力电器股份有限公司 Washing machine inner barrel and washing machine with same
CN107587310B (en) * 2017-10-20 2021-11-16 珠海格力电器股份有限公司 Washing machine inner barrel and washing machine with same

Also Published As

Publication number Publication date
CH665232A5 (en) 1988-04-29
EP0083302B1 (en) 1986-03-26
EP0083302B2 (en) 1988-09-28
DE3270167D1 (en) 1986-04-30

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