EP1426476B1 - Fastening system for a motor on a tub in a washing machine - Google Patents

Fastening system for a motor on a tub in a washing machine Download PDF

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Publication number
EP1426476B1
EP1426476B1 EP03025370A EP03025370A EP1426476B1 EP 1426476 B1 EP1426476 B1 EP 1426476B1 EP 03025370 A EP03025370 A EP 03025370A EP 03025370 A EP03025370 A EP 03025370A EP 1426476 B1 EP1426476 B1 EP 1426476B1
Authority
EP
European Patent Office
Prior art keywords
container
motor
fastening
washing machine
engine
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.)
Expired - Lifetime
Application number
EP03025370A
Other languages
German (de)
French (fr)
Other versions
EP1426476A2 (en
EP1426476A3 (en
Inventor
Ismael Gracia Bobed
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1426476A2 publication Critical patent/EP1426476A2/en
Publication of EP1426476A3 publication Critical patent/EP1426476A3/en
Application granted granted Critical
Publication of EP1426476B1 publication Critical patent/EP1426476B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/265—Counterweights mounted to the tub; Mountings therefor
    • 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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/206—Mounting of motor
    • 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
    • D06F37/26—Casings; Tubs

Definitions

  • the present invention relates to an attachment system for an engine to a container in washing machines, the main purpose of which is to avoid or reduce noise and vibration generated by the operation of the engine of the washing machine.
  • An additional purpose of the invention is to reduce the number of mounts of the engine to the corresponding washing machine container or tank.
  • Attachments between the washing machine container and the corresponding motor are known, the container including a drum provided with a rear pulley communicating with the shaft of the engine by means of a belt or a chain; wherein fasteners on the container, which correspond to fastening elements of the engine, so that the elements of the container are each individually connected to the corresponding fastening elements of the motor.
  • the container is provided with one or more balance weights.
  • fasteners are integrally connected to the container in the same plastic injection, so that the injection molds and the container itself could be simpler and cheaper if the container had a smaller number of mounting lugs or elements.
  • DE 3 817 611 describes such a washing machine.
  • the invention comprises an attachment system for an engine to a container in washing machines, the container including at least one fastening element for at least one fastening element of the engine and a front counterweight.
  • the motor has at least one fastening means which corresponds to at least one fastening element on the front counterweight.
  • the front balance weight protrudes down beyond the lower part of the container to easily serve for the formation of a fastening element of the balance weight for the engine.
  • the front balance weight may include a frictional fit to easily establish an attachment between this balance weight and the engine.
  • the front balance weight may be provided, at least in part, with a plastic wrap or cover to prevent cracks in its body, usually of concrete.
  • the described training several advantages. It allows to reduce the number of fasteners on the washing machine container, whereby its manufacture can be cheaper and faster than that of the known container.
  • the attachment of the motor according to the invention directly to the front of the balance weight of the washing machine reduces the formation of vibrations of the motor and the container assembly of the washing machine. This also reduces the noise generated by the washing machine.
  • FIG. 1 shows some essential elements of a conventional washing machine, namely the motor 1 with its shaft 4, its pinion 5 and the fastening means 2.
  • These fastening means 2 can be coupled to the fastening elements 3 of the container 6, which rotatably connected to a drum 7 with a pulley is, a front counterweight 9 and an upper balance weight 10, wherein the pulley 7 is connected via the belt 8 with the pinion 5 of the motor.
  • FIG. 2 the lower portion of the front counterbalance 9 'provided with fasteners 13 which are coupled with fastening means 12 of the engine 1'.
  • the engine 1 ' is also attached to its output side with other fastening means 2' to fasteners 3 'of the container 6'.
  • the four usual attachment points between the container and the engine only two remain attached to the container while two others are attached to the front counterweight.
  • the lower portion of the front counterweight 9 ' is covered with a plastic cover 11 to prevent the formation of cracks in its body, which may be caused by vibrations of the motor attached thereto. Since the balance weight is normally made of concrete and is subjected to an additional load with the attachment points according to the invention, there is of course a greater risk that it will break, which is prevented by the reference 11 as stated.
  • the container requires fewer fasteners than a known one, it is cheaper and, more importantly, the vibrations which the motor 1 'transmits to the container 6' are much lower than in the conventional systems, and therefore the one provided with the invention Washing machine is more durable and quieter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Motor Or Generator Frames (AREA)
  • Centrifugal Separators (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Abstract

The attachment system has at least one attachment element (3') on the container (6') for at least one attachment arrangement (2') for the motor and a forward balance weight (9') in the container. The motor has at least one attachment arrangement (12) corresponding to at least one attachment element (13) on the forward balance weight. The balance weight protrudes down below the lower part of the container to form an attachment element for the motor.

Description

Aufgabe der ErfindungObject of the invention

Die vorliegende Erfindung, wie in dieser Beschreibung dargestellt, betrifft ein Befestigungssystem für einen Motor an einem Behälter bei Waschmaschinen, hat den Hauptzweck darin, Lärm und Vibrationen zu vermeiden oder zu verringern, die durch den Betrieb des Motors der Waschmaschine erzeugt werden. Ein zusätzlicher Zweck der Erfindung besteht darin, die Anzahl von Befestigungen des Motors am entsprechenden Waschmaschinenbehälter oder -tank zu verringern.The present invention, as set forth in this specification, relates to an attachment system for an engine to a container in washing machines, the main purpose of which is to avoid or reduce noise and vibration generated by the operation of the engine of the washing machine. An additional purpose of the invention is to reduce the number of mounts of the engine to the corresponding washing machine container or tank.

Allgemeiner Stand der TechnikGeneral state of the art

Befestigungen zwischen Waschmaschinenbehälter und dem entsprechenden Motor sind bekannt, wobei der Behälter eine Trommel beinhaltet, die mit einer rückwärtigen Riemenscheibe versehen ist, die mithilfe eines Riemens oder einer Kette mit der Welle des Motors in Verbindung steht; wobei Befestigungselemente am Behälter bestehen, die Befestigungselementen des Motors entsprechen, so dass die Elemente des Behälters jeweils einzeln mit den entsprechenden Befestigungselementen des Motors verbunden sind. Außerdem ist der Behälter mit einem oder mehreren Ausgleichsgewichten versehen. Dieses Befestigungssystem zwischen dem Behälter und dem Motor der Waschmaschine weist diesbezüglich Nachteile auf in Form von übermäßigen Vibrationen, die sich vom Motor auf den Rest der Waschmaschine übertragen. Außerdem bilden sind die Befestigungselemente einstückig in derselben Kunststoffspritzung mit dem Behälter verbunden, so dass die Spritzformen und der Behälter selbst einfacher und billiger sein könnten, wenn der Behälter eine geringere Anzahl von Befestigungsansätzen oder -elementen hätte. DE 3 817 611 beschreibt so eine Waschmaschine.Attachments between the washing machine container and the corresponding motor are known, the container including a drum provided with a rear pulley communicating with the shaft of the engine by means of a belt or a chain; wherein fasteners on the container, which correspond to fastening elements of the engine, so that the elements of the container are each individually connected to the corresponding fastening elements of the motor. In addition, the container is provided with one or more balance weights. This fastening system between the container and the motor of the washing machine has disadvantages in this respect in the form of excessive vibrations transmitted from the engine to the rest of the washing machine. In addition, the fasteners are integrally connected to the container in the same plastic injection, so that the injection molds and the container itself could be simpler and cheaper if the container had a smaller number of mounting lugs or elements. DE 3 817 611 describes such a washing machine.

Beschreibung der ErfindungDescription of the invention

Um die Aufgaben zu lösen und die Nachteile zu vermeiden, die in vorhergehenden Absätzen angezeigt sind, umfasst die Erfindung ein Befestigungssystem für einen Motor an einem Behälter bei Waschmaschinen, wobei der Behälter zumindest ein Befestigungselement für zumindest ein Befestigungselement des Motors und ein vorderes Ausgleichsgewicht beinhaltet.In order to achieve the objects and avoid the drawbacks indicated in the preceding paragraphs, the invention comprises an attachment system for an engine to a container in washing machines, the container including at least one fastening element for at least one fastening element of the engine and a front counterweight.

Als Neuheit gemäß der Erfindung weist der Motor zumindest ein Befestigungsmittel auf, das mit zumindest einem Befestigungselement am vorderen Ausgleichsgewicht korrespondiert.As a novelty according to the invention, the motor has at least one fastening means which corresponds to at least one fastening element on the front counterweight.

In einer bevorzugten Ausführungsform der Erfindung ragt das vordere Ausgleichsgewicht nach unten über den unteren Teil des Behälters hinaus, um auf einfache Weise für die Ausbildung eines Befestigungselements des Ausgleichsgewichts für den Motor zu dienen.In a preferred embodiment of the invention, the front balance weight protrudes down beyond the lower part of the container to easily serve for the formation of a fastening element of the balance weight for the engine.

Andererseits kann das vordere Ausgleichsgewicht ein kraftschlüssiges Stück beinhalten, um auf einfache Weise eine Befestigung zwischen diesem Ausgleichsgewicht und dem Motor herzustellen.On the other hand, the front balance weight may include a frictional fit to easily establish an attachment between this balance weight and the engine.

Das vordere Ausgleichsgewicht kann, wenigstens teilweise, mit einer Kunststoffumhüllung oder einem Bezug versehen sein, um Risse in seinem Körper, gewöhnlich aus Beton, zu vermeiden.The front balance weight may be provided, at least in part, with a plastic wrap or cover to prevent cracks in its body, usually of concrete.

Die beschriebene Ausbildung mehrere Vorteile. Sie gestattet, die Anzahl von Befestigungen an dem Waschmaschinenbehälter zu verringern, wodurch seine Herstellung billiger und schneller als die der bekannten Behälter sein kann. Außerdem verringert die erfindungsgemäße Befestigung des Motors direkt an der Vorderseite des Ausgleichsgewichts der Waschmaschine die Bildung von Vibrationen des Motors und der Behälter-Baugruppe der Waschmaschine. Dadurch verringert sich auch das Geräusch, das durch die Waschmaschine erzeugt wird.The described training several advantages. It allows to reduce the number of fasteners on the washing machine container, whereby its manufacture can be cheaper and faster than that of the known container. In addition, the attachment of the motor according to the invention directly to the front of the balance weight of the washing machine reduces the formation of vibrations of the motor and the container assembly of the washing machine. This also reduces the noise generated by the washing machine.

Im folgenden ist zum besseren Verständnis dieser Beschreibung und als Bestandteil derselben eine Zeichnung angefügt, in der ein nicht einschränkendes Ausführungsbeispiel der Erfindung dargestellt ist.In the following, for a better understanding of this description and as a component thereof, a drawing is attached, in which a non-limiting embodiment of the invention is shown.

Kurze Beschreibung der FigurenBrief description of the figures

Figur 1FIG. 1
zeigt in einer "Explosionsdarstellung" den Behälter und den Antrieb mit Motor und Riemengetriebe einer herkömmlichen Waschmaschine.shows in an "exploded view" the container and the drive with motor and belt transmission of a conventional washing machine.
Figur 2FIG. 2
zeigt eine partielle Schnittansicht durch den unteren Teil des Behälters und der Befestigungspartie für den Motor gemäß der vorliegenden Erfindung.shows a partial sectional view through the lower part of the container and the mounting portion for the engine according to the present invention.
BESCHREIBUNG EINES AUSFÜHRUNGSBEISPIELS DER ERFINDUNGDESCRIPTION OF AN EMBODIMENT OF THE INVENTION

Figur 1 zeigt einige wesentliche Elemente einer herkömmlichen Waschmaschine, nämlich den Motor 1 mit seiner Welle 4, seinem Ritzel 5 und den Befestigungsmitteln 2. Diese Befestigungsmittel 2 können mit den Befestigungselementen 3 des Behälters 6 gekuppelt werden, der eine Trommel, die mit einer Riemenscheibe 7 drehfest verbunden ist, ein vorderes Ausgleichsgewicht 9 und ein oberes Ausgleichsgewicht 10 aufweist, wobei die Riemenscheibe 7 über den Riemen 8 mit dem Ritzel 5 des Motors verbunden ist. FIG. 1 shows some essential elements of a conventional washing machine, namely the motor 1 with its shaft 4, its pinion 5 and the fastening means 2. These fastening means 2 can be coupled to the fastening elements 3 of the container 6, which rotatably connected to a drum 7 with a pulley is, a front counterweight 9 and an upper balance weight 10, wherein the pulley 7 is connected via the belt 8 with the pinion 5 of the motor.

Durch das dargestellte Ausführungsbeispiels gemäß der Erfindung können einige der Befestigungen des Motors an bekannten Behältern durch Befestigungselemente am vorderen Ausgleichsgewicht ersetzt werden, mit denen die Befestigungsmittel des Motors verbunden werden.By the illustrated embodiment according to the invention, some of the mounts of the engine to known containers can be replaced by fasteners on the front counterbalance with which the fastening means of the engine are connected.

Dementsprechend ist in Figur 2 der untere Bereich des vorderen Ausgleichsgewichts 9' mit Befestigungselementen 13 versehen, die mit Befestigungsmitteln 12 des Motors 1' gekuppelt sind. Dabei ist der Motor 1' außerdem an seiner Abtriebsseite mit anderen Befestigungsmitteln 2' an Befestigungselementen 3' des Behälters 6' befestigt. Im dargestellten Beispiel sind von den vier gewöhnlichen Befestigungspunkten zwischen Behälter und Motor nur noch zwei weiterhin am Behälter angebracht, während zwei andere am vorderen Gegengewicht angebracht sind.Accordingly, in FIG. 2 the lower portion of the front counterbalance 9 'provided with fasteners 13 which are coupled with fastening means 12 of the engine 1'. In this case, the engine 1 'is also attached to its output side with other fastening means 2' to fasteners 3 'of the container 6'. In the example shown, of the four usual attachment points between the container and the engine, only two remain attached to the container while two others are attached to the front counterweight.

Dazu ragt gemäß Figur 2 das vordere Ausgleichsgewicht 9' in gewissem Maße nach unten über den unteren Teil des Behälters 6' hinaus, um die Anbringung von Befestigungselementen für Befestigungsmittel des Motors 1' überhaupt zu ermöglichen.Protects in accordance with FIG. 2 the front balance weight 9 'to some extent down beyond the lower part of the container 6' to allow the attachment of fasteners for fastening means of the engine 1 'at all.

Außerdem ist der unterer Bereich des vorderen Ausgleichsgewichts 9' mit einen Kunststoffbezug 11 überzogen, durch den die Bildung von Rissen in seinem Körper zu vermeiden, die durch Schwingungen des daran befestigten Motors verursacht werden können. Da das Ausgleichsgewicht normalerweise aus Beton ausgeführt ist und mit den Befestigungspunkten gemäß der Erfindung eine zusätzliche Belastung erfährt, besteht natürlich ein größeres Risiko, dass es dabei reißt, was wie gesagt durch den Bezug 11 verhindert wird.In addition, the lower portion of the front counterweight 9 'is covered with a plastic cover 11 to prevent the formation of cracks in its body, which may be caused by vibrations of the motor attached thereto. Since the balance weight is normally made of concrete and is subjected to an additional load with the attachment points according to the invention, there is of course a greater risk that it will break, which is prevented by the reference 11 as stated.

Da der Behälter weniger Befestigungselemente als ein bekannter erfordert, ist er billiger, und, was wesentlicher ist, die Vibrationen, die der Motor 1' auf den Behälter 6' überträgt, sind viel geringer als bei den herkömmlichen Systemen, weswegen die mit der Erfindung versehene Waschmaschine haltbarer und leiser ist.Since the container requires fewer fasteners than a known one, it is cheaper and, more importantly, the vibrations which the motor 1 'transmits to the container 6' are much lower than in the conventional systems, and therefore the one provided with the invention Washing machine is more durable and quieter.

Claims (4)

  1. Fastening system for a motor to a container in washing machines, wherein the container (6, 6') includes at least one fastening element (3, 3') for at least one fastening means (2, 2') of the motor (1) and a front compensating weight (9, 9'), characterised in that the motor (1) has at least one fastening means (2, 12) which corresponds with at least one fastening element (3, 13) at the front compensating weight (9, 9').
  2. Fastening system according to claim 1, characterised in that the front compensating weight (9') projects downwardly below the lower part of the container (6') in order to serve in simple manner for the formation of a fastening element (13) at the compensating weight (9') for the motor (1).
  3. Fastening system according to claim 1 or 2, characterised in that the front compensating weight (9') includes a force-locking member in order to produce in simple manner a fastening (12 and 13) between this compensating weight (9') and the motor (1).
  4. Fastening system according to any one of claims 1 to 3, characterised in that the front compensating weight (9') is surrounded at least partly by a plastics material casing or a covering (11) in order to avoid cracks in its body.
EP03025370A 2002-11-06 2003-11-04 Fastening system for a motor on a tub in a washing machine Expired - Lifetime EP1426476B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200202642 2002-11-06
ES200202642A ES2241404B1 (en) 2002-11-06 2002-11-06 ENGINE FIXING SYSTEM TO CUBA IN WASHERS.

Publications (3)

Publication Number Publication Date
EP1426476A2 EP1426476A2 (en) 2004-06-09
EP1426476A3 EP1426476A3 (en) 2004-08-18
EP1426476B1 true EP1426476B1 (en) 2008-07-23

Family

ID=32309638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03025370A Expired - Lifetime EP1426476B1 (en) 2002-11-06 2003-11-04 Fastening system for a motor on a tub in a washing machine

Country Status (4)

Country Link
EP (1) EP1426476B1 (en)
AT (1) ATE402284T1 (en)
DE (1) DE50310190D1 (en)
ES (2) ES2241404B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005060362A1 (en) * 2005-12-16 2007-06-21 BSH Bosch und Siemens Hausgeräte GmbH Fastening device for a motor in a household appliance
ATE433517T1 (en) * 2006-03-30 2009-06-15 Arcelik As WASHING MACHINE
ES2378937A1 (en) * 2009-10-01 2012-04-19 Bsh Electrodomésticos España, S.A. Washing machine with a lye container and a drive motor
DE102010062916A1 (en) 2010-12-13 2012-06-14 BSH Bosch und Siemens Hausgeräte GmbH Household device i.e. front loading washing machine, for maintaining laundry items, has drive motor arranged such that axle of drive shaft of drive motor runs outside rotation axle in displaced manner
DE102011005315A1 (en) * 2011-03-09 2012-09-13 BSH Bosch und Siemens Hausgeräte GmbH Arrangement of a tub of a household washing machine and a drive motor
ITPN20130015U1 (en) 2013-03-07 2014-09-08 Nidec Sole Motor Corp S R L APPARATUS FOR FIXING A MOTOR TO THE TANK OF A WASHING MACHINE
CN111235821A (en) * 2020-01-16 2020-06-05 江苏新安电器股份有限公司 Method for sensing weight of brushless motor drum washing machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1181072B (en) * 1984-02-13 1987-09-23 Zanussi A Spa Industrie PLASTIC TANK FOR WASHING MACHINES
IT1205674B (en) * 1987-05-25 1989-03-31 Candy Elettrodomestici REFINEMENT OF A WASHING MACHINE FOR THE BATHTUB GROUP
IT1267595B1 (en) * 1994-11-08 1997-02-07 Zanussi Elettrodomestici WASHING MACHINE WITH PERFECTED STRUCTURES

Also Published As

Publication number Publication date
EP1426476A2 (en) 2004-06-09
ES2309266T3 (en) 2008-12-16
ES2241404B1 (en) 2006-07-01
EP1426476A3 (en) 2004-08-18
DE50310190D1 (en) 2008-09-04
ATE402284T1 (en) 2008-08-15
ES2241404A1 (en) 2005-10-16

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