WO2015058968A1 - Procédé pour la fixation d'un dispositif de compensation de déséquilibre à un tambour à linge, dispositif et appareil ménager - Google Patents

Procédé pour la fixation d'un dispositif de compensation de déséquilibre à un tambour à linge, dispositif et appareil ménager Download PDF

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Publication number
WO2015058968A1
WO2015058968A1 PCT/EP2014/071652 EP2014071652W WO2015058968A1 WO 2015058968 A1 WO2015058968 A1 WO 2015058968A1 EP 2014071652 W EP2014071652 W EP 2014071652W WO 2015058968 A1 WO2015058968 A1 WO 2015058968A1
Authority
WO
WIPO (PCT)
Prior art keywords
recess
compensation device
laundry drum
unbalance
imbalance compensation
Prior art date
Application number
PCT/EP2014/071652
Other languages
German (de)
English (en)
Inventor
Robert Kiessling
Holger Reichner
Tom Weber
Original Assignee
BSH Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Publication of WO2015058968A1 publication Critical patent/WO2015058968A1/fr

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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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis

Definitions

  • the invention relates to a method for fastening an annular unbalance compensation device on a laundry drum of a household appliance, wherein the unbalance compensation device is received in a circumferential axial recess of the laundry drum and is secured in the recess by means of at least one fastening means.
  • the invention also relates to an arrangement for a domestic appliance, comprising a laundry drum for receiving laundry items and an annular unbalance compensation device, which is arranged rotatably on the laundry drum and received in a circumferential axial recess of the laundry drum.
  • the invention also relates to a household appliance for the care of items of laundry, with such an arrangement.
  • an annular unbalance compensating device also known as a "ball balancer" - to the laundry drum an annular hollow housing in which a balancing mass is provided, for example in the form of a plurality of spherical compensating elements.
  • This balancing mass is movably mounted in the interior of the housing and during operation of the washing machine tends to contact one of the unbalanced masses Diameter of the Wash basket - to move opposite side, thus creating a counterweight for the imbalance mass and consequently overall balance.
  • the interest is directed to the attachment of such an imbalance compensation device to a laundry drum.
  • Such methods are already known from the prior art in various embodiments.
  • the document US 201 1/0203325 A1 describes a solution in which the housing of the imbalance compensation device is injection-molded onto an axial end wall of the laundry drum.
  • the unbalance compensation device by means of screws to the laundry drum.
  • a screw connection between an imbalance compensation device and a laundry drum is proposed, for example, in EP 2 154 285 A1.
  • the invention preferably builds on an arrangement as described in the KR 10 2008 037 420 A and in which an imbalance compensation device is fixed via a latching connection to a laundry drum.
  • locking elements are formed on a radial outer circumference of a housing of the unbalance compensation device, which are engaged in corresponding latching openings of the laundry drum.
  • the latching elements lie axially against an edge delimiting the respective latch opening, so that a positive connection is formed in the axial direction.
  • Such a latching connection has in particular the disadvantage that it may come to a release of the latching connection.
  • the radially outwardly projecting locking elements are namely an obstacle, which prevents the axial insertion of the imbalance compensation device in the axial recess. Neither the laundry drum nor the unbalance compensation device can be deformed strongly enough. As a result, relatively high assembly forces are needed to make the detent between the laundry drum and the imbalance compensation device can. On the other hand, it has also proven to be expensive and laborious to align the locking elements in the circumferential direction to the respective latching openings of the laundry drum. It is an object of the invention to simplify the installation of an imbalance compensation device on a laundry drum compared to the prior art.
  • an annular unbalance compensation device is attached to a laundry drum of a household appliance, wherein the unbalance compensating device is received in a circumferential axial recess of the laundry drum and is secured in the recess by means of at least one fastening means.
  • the imbalance compensation device in the recess is first a at a radial Outside circumference of a housing of the imbalance compensation device formed, received by the at least one fastening means different and radially outwardly Positionierdom in a corresponding recess in a depression radially bounding wall of the laundry drum, and then the imbalance compensation device is received by a tilting movement about the positioning dome in the recess and fastened by means of the at least one fastening means.
  • the recording process of the imbalance compensation device in the axial recess of the laundry drum is thus simplified by a special Positionierdom, which is received in a recess in the wall of the laundry drum and thus represents a support point for the imbalance compensation device, which then in the axial recess without much effort around the Positionierdom can be tipped, which in this case provides the sufficient axial restraining force.
  • the Positionierdom thus ensures the necessary retention force when tilting the imbalance compensation device in the recess and thus allows at all tipping the imbalance compensation device in the recess.
  • the Positionierdom also has an alignment function and allows a quasi-automatic alignment of the at least one fastening means in the circumferential direction, when selbiges fastening means is arranged on the imbalance compensation device itself. If the fastening means is provided in the form of a latching element, which is formed on the radial outer circumference of the housing, then the orientation of the latching element in the circumferential direction is favored with respect to a drum-side latch
  • an imbalance compensation device in the present case a device which is designed to compensate and thus to prevent imbalances of the laundry drum.
  • the unbalance compensation device can have a compensating mass arranged movably in the housing, for example in the form of a plurality of spherical elements.
  • Such an imbalance compensation device can also be referred to as a "ball balancer”.
  • the housing of the imbalance compensation device is preferably formed in one piece and may have a base body from which protrudes the Positionierdom. While in the body then the balancing mass of the Unbalance compensation device is movably arranged, the Positionierdom serves to facilitate the mounting of the housing to the laundry drum.
  • the housing may be provided in total as an injection molded part.
  • the positioning mandrel is in the form of a pin-shaped, in particular cuboidal or cylindrical, bolt, which is received in the recess of the wall of the laundry drum.
  • a pin or web a secure fit of the unbalance compensation device can be ensured in the tilting movement, so that the Positionierdom provides the required for the tipping retention force and thus prevents a "jumping out" of the imbalance compensation device from the axial recess before the at least one fastening means still for Wear comes.
  • a radial height of the positioning dome is in a value range of 1 mm to 3 mm, for example 1, 5 mm or 2 mm, and / or an axial width of the Positioning dome is in a range of 2 mm to 3 mm, for example, 2.5 mm.
  • a latching element formed on the radial outer circumference of the housing of the unbalance compensation device is latched into a latching opening, which is formed in the wall of the laundry drum, as fastening means.
  • an edge region of the wall adjoining the latching opening is engaged behind by a hook-shaped nose of the latching element on a side of the wall facing away from the unbalance compensation device.
  • the invention also relates to an arrangement for a household appliance, comprising a laundry drum for receiving items of laundry, with an annular balancing device which is rotatably mounted on the laundry drum and received in a circumferential axial recess of the laundry drum, and with at least one fastening means by means of which the balancing device is fastened in the recess.
  • a different from the at least one fastening means in its shape and radially outwardly facing Positionierdom is formed, which extends into a recess, in particular through the recess, which in a radial recess radially delimiting the axial recess Wall of the laundry drum is formed.
  • An inventive household appliance for the care of items of laundry, in particular a washing machine comprises an arrangement according to the invention.
  • Figure 1 is a schematic representation of a plan view of an axial end face of an imbalance compensation device according to an embodiment of the invention.
  • Fig. 2 is a schematic representation of a sectional view through the
  • FIG. 3 is a schematic and enlarged view of an area of the imbalance compensation device designated III in FIG. 2; FIG.
  • FIG. 4 is a schematic and enlarged view of an area of the imbalance compensation device designated IV in FIG. 2; FIG.
  • Fig. 5 is a schematic representation of a plan view of an axial end face of a
  • FIG. 6 is a schematic representation of a sectional view through the arrangement according to FIG. 5 along a section line VI-VI indicated in FIG. 5;
  • FIG. 7 shows an enlarged view of a designated in Figure 6 with VII area ..;
  • FIG. 8 shows an enlarged view of a designated in Figure 6 with VIII area ..;
  • FIG. 1 is a schematic representation of a plan view of an axial end face of an imbalance compensation device 1 according to an embodiment of the invention.
  • the unbalance compensation device 1 is used to compensate for imbalances of a laundry drum.
  • the unbalance compensation device 1 comprises an example of Plastic formed, annular housing 2, in which a balancing mass is movably arranged, such as a plurality of indicated in Fig. 1 spherical elements. 3
  • At least two locking elements 5 are formed in the embodiment, which are arranged at an angular distance of 120 ° from each other.
  • a third locking element 5 may be provided, which is then also arranged spaced apart by 120 ° to the two locking elements 5.
  • a positioning mandrel 6 is provided, which is likewise formed on the outer circumference 4 of the housing 2 and points radially outward. The positioning dome 6 is therefore arranged in each case at an angular distance of 120 ° with respect to the latching elements 5.
  • FIG. 2 shows a sectional view of the imbalance compensation device 1 along a section line II - I I shown in FIG.
  • the housing 2 is formed in cross-section D-shaped and has a flat portion 7 and a immediately adjacent thereto, belly-shaped and curved portion 8.
  • the latching element 5 has a base body 9 which rises radially from the outer circumference 4 of the housing 2, from which in the axial direction and thus parallel to a in FIG. 1 denoted by 10 axis of rotation of the imbalance compensation device 1 a hook-shaped nose 1 1 protrudes.
  • the lug 1 1 thus points in the axial direction and thus along the axis of rotation 10.
  • the latching element 5 and its base body 9 also has an insertion bevel 12 which, for example, at an angle from a value range of 10 ° to 20 °, in particular at an angle of 15 °, with respect to the remaining area of the outer periphery 4.
  • the nose 1 1 is formed by the fact that the base body 9 of the locking element 5 is quasi provided with an undercut 13, which constitutes a receptacle or an axial recess and thus forms a radial gap between the nose 1 1 and the outer circumference 4.
  • the Positionierdom 6 has a different from the shape of the locking element 5 or different geometric shape.
  • FIG. 4 which shows an area IV indicated in FIG. 2 in an enlarged view
  • the positioning dome 6 projecting radially outward from the outer circumference 4 is rectangular in cross-section. In a three-dimensional view of the positioning dome 6 may have the shape of a cuboid or cylinder.
  • the radial height of the positioning mandrel 6 and thus the distance to the outer circumference 4 can be in particular in a value range of 1 mm to 3 mm and for example 1.5 mm.
  • the width dimensioned in the axial direction of the positioning mandrel 6 can be, for example, in a value range from 2 mm to 3 mm and in particular 2.5 mm.
  • a designated in Fig. 4 with 14 distance of the positioning mandrel 6 to an axial edge 15 of the flat portion 7 may be in a range of 5 mm to 7 mm, in particular 6 mm.
  • FIG. 5 an axial end face of an assembly 16 according to an embodiment of the invention is shown in more detail.
  • the arrangement 16 includes a laundry drum 17 to which the unbalance compensation device 1 is fixed in a rotationally fixed manner.
  • the axis of rotation 10 of the imbalance compensation device 1 coincides with an axis of rotation of the laundry drum 17.
  • the laundry drum 17 has an end-side axial opening 18 through which items of laundry can be introduced into a laundry space 19.
  • FIG. 6 now shows a sectional view of the arrangement 16 along a section line Vl-Vl indicated in FIG. 5.
  • the laundry drum 17 has a cylindrical, circumferential jacket 20, which limits the wash chamber 19 radially outer circumference.
  • the jacket 20 is connected to a front axial end wall 21 and on the other hand to a rear axial end wall 22, which limit the wash chamber 19 axially.
  • the laundry drum 17 is also connected to a shaft 23, via which the arrangement 16 can be mounted in a storage container of a washing machine and can be driven rotatably about the axis of rotation 10 by means of a drive motor.
  • an axial and circumferential recess 24 is formed, in which the unbalance compensation device 1 axially is included.
  • the belly-like region 8 of the housing 2 is facing the laundry room 19.
  • the positioning dome 6 extends through a formed in a wall 25 of the laundry drum 17 through recess 26 and protrudes slightly from the recess 26 radially out.
  • the recess 26 is formed in the axial direction a little wider than the positioning dome 6.
  • the wall 25 is formed by a double-walled wall structure 27, which comprises a portion of the cylindrical shell 20 and a portion of the front axial end wall 21, which are connected to each other at the axial end by means of a flange 28.
  • the curl 28 represents a radial and circumferential fold.
  • the curl 28 extends slightly further in the radial direction than the positioning mandrel 6 so that it does not project beyond the curl 28 in the radial direction.
  • Fig. 8 shows an enlarged view of an indicated in Fig. 6 area VII I.
  • the locking element 5 is particularly well recognizable, which is now engaged in a latching opening 29 which is formed in the double wall 25.
  • the latching opening 29 is a passage opening which is formed in the wall structure 27.
  • the hook-shaped nose 1 1 of the locking element 5 engages behind a directly adjacent to the locking opening 29 and axially between the flange 28 and the locking opening 29 edge region 30 of the wall 25, on a radial outer periphery 31 and a radial outer side of the shell 20th
  • an axial and the detent opening 29 directly limiting edge 32 of the wall 25 is received in the axial undercut 13 of the locking element 5, so that the nose 1 1 is applied directly to the edge portion 30 on the outer circumference 31.
  • the nose 1 1 points in the direction of the flange 28.
  • the housing 2 of the imbalance compensation device 1 also has an arranged between the locking element 5 and the axial edge 15 of the flat portion 7 contact surface 33, which by a surface portion of the outer periphery 4 of the housing 2 (Fig. see Fig. 4) is formed.
  • This contact surface 33 is in the assembled state on a side facing away from the nose 1 1 side 34 of the wall 25 positively. In this case, the contact surface 33 is directly radially opposite the flange 28th
  • the positioning dome 6 is received in the recess 26 and inserted therethrough. Only then is the necessary axial restraining force ensured, and the unbalance compensating device 1 can then be tipped around the positioning dome 6 into the recess 24. By this tilting movement about the positioning dome 6, the two identically formed locking elements 5 are aligned with the respective locking openings 29 and engage in this. If necessary, this results in a slight temporary deformation of the housing 2. As is apparent in particular from FIG.
  • Fig. 9 shows an alternative embodiment of the locking element 5 without the nose 1 1. H, the main body 9 and the locking element 5 with the detent opening limiting axial edge 32 of the wall 25 are brought into abutment.

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

Abstract

L'invention concerne un procédé pour la fixation d'un dispositif de compensation de déséquilibre (1) de forme annulaire, à un tambour à linge (17) d'un appareil ménager, le dispositif de compensation de déséquilibre (1) étant logé dans un renfoncement (24) axial périphérique du tambour à linge (17), et étant fixé dans le renfoncement (24) à l'aide d'au moins un moyen de fixation (5). Lorsque le dispositif de compensation de déséquilibre (1) est placé dans le renfoncement (24), en premier lieu, un dôme de positionnement (6) qui est réalisé sur la périphérie extérieure radiale (4) d'un boîtier (2) du dispositif de compensation de déséquilibre (1), qui n'est pas le ou les moyens de fixation (5), et qui est orienté radialement vers l'extérieur, est reçu dans un évidement (26) correspondant formé dans une paroi (25) du tambour à linge (17) délimitant radialement le renfoncement (24), et, en second lieu, le dispositif de compensation de déséquilibre (1) est reçu dans le renfoncement (24), par un mouvement de basculement autour du dôme de positionnement (6), et est maintenu à l'aide du ou des moyens de fixation (5). L'invention concerne en outre un dispositif correspondant pour un appareil ménager, comprenant un tambour à linge destiné à recevoir du linge, et un dispositif de compensation de déséquilibre de forme annulaire.
PCT/EP2014/071652 2013-10-21 2014-10-09 Procédé pour la fixation d'un dispositif de compensation de déséquilibre à un tambour à linge, dispositif et appareil ménager WO2015058968A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013221294.1 2013-10-21
DE102013221294.1A DE102013221294B4 (de) 2013-10-21 2013-10-21 Verfahren zum Befestigen einer Unwuchtausgleichsvorrichtung an einer Wäschetrommel, Anordnung und Haushaltsgerät

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WO2015058968A1 true WO2015058968A1 (fr) 2015-04-30

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PCT/EP2014/071652 WO2015058968A1 (fr) 2013-10-21 2014-10-09 Procédé pour la fixation d'un dispositif de compensation de déséquilibre à un tambour à linge, dispositif et appareil ménager

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WO (1) WO2015058968A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5765404A (en) * 1995-11-17 1998-06-16 Whirlpool Corporation Balance ring attachment in an automatic washer
KR20080037420A (ko) * 2006-10-26 2008-04-30 삼성전자주식회사 드럼세탁기
DE102009021327A1 (de) * 2008-05-16 2009-11-19 Lg Electronic Inc. Wäschevorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100960068B1 (ko) 2006-11-10 2010-05-31 삼성전자주식회사 볼밸런서 및 이를 구비한 세탁기
KR101548994B1 (ko) 2008-08-06 2015-09-01 엘지전자 주식회사 볼밸런서 및 이를 구비한 세탁장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5765404A (en) * 1995-11-17 1998-06-16 Whirlpool Corporation Balance ring attachment in an automatic washer
KR20080037420A (ko) * 2006-10-26 2008-04-30 삼성전자주식회사 드럼세탁기
DE102009021327A1 (de) * 2008-05-16 2009-11-19 Lg Electronic Inc. Wäschevorrichtung

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DE102013221294B4 (de) 2023-01-05
DE102013221294A1 (de) 2015-04-23

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