EP3894623B1 - A washer/dryer comprising a balance weight - Google Patents

A washer/dryer comprising a balance weight Download PDF

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Publication number
EP3894623B1
EP3894623B1 EP19798257.2A EP19798257A EP3894623B1 EP 3894623 B1 EP3894623 B1 EP 3894623B1 EP 19798257 A EP19798257 A EP 19798257A EP 3894623 B1 EP3894623 B1 EP 3894623B1
Authority
EP
European Patent Office
Prior art keywords
tub
balance weight
washer
connection
dryer
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.)
Active
Application number
EP19798257.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3894623A1 (en
Inventor
Cagdas YALCIN
Umit Gulbay
Yunus Emre AYDOGDU
Sabih Hizal
Recep Ayas
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.)
Arcelik AS
Original Assignee
Arcelik AS
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Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP3894623A1 publication Critical patent/EP3894623A1/en
Application granted granted Critical
Publication of EP3894623B1 publication Critical patent/EP3894623B1/en
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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
    • D06F37/26—Casings; Tubs
    • D06F37/264—Tubs provided with reinforcing structures, e.g. ribs, inserts, braces

Definitions

  • the present invention relates to a washer/dryer comprising a balance weight mounted to the tub.
  • the laundry loaded into the drum causes unbalanced load on the drum and tub to which the drum is connected depending on the weight of the laundry and the rotational speed.
  • the tub and the drum start to wobble and rotate in an unbalanced manner.
  • balance weights preferably produced from concrete are used for balancing the tub and the loads generated during the operation.
  • the balance weight is generally attached to the plastic extensions on the tub, and then screwed and mounted to the tub.
  • the screw connections to the plastic material generally apply a tensile force onto the plastic or the plastic extension is strained from the inside by the screw and gets wider.
  • the balance weight is enabled to be fixed onto the tub.
  • connection member used for mounting the balance weight to the tub are critical.
  • the plastic extensions in the tub must be widened by screws to the extent to hold the balance weight, and this widening must not cause any cracks in the balance weight.
  • the diameter of the connection hole of the balance weight changing in the course of time and the stretching of the plastic material cause the force which will fix the balance weight to decrease. In this case, the balance weight starts to slowly move and creates a clearance on the plastic extensions, thus increasing the movement amplitude thereof and causing generation of noise during the operation.
  • the prestress of the bolt is used or the desired prestress is provided by means of a spring washer.
  • the bolts may be tightened at different amounts, which in turn causes the balance weight to break, and loss in time and labor occurs during the attachment/detachment thereof.
  • the holes bored for connection spoil the integrity of the balance weight, causing various design limitations.
  • the connection points make the molding of the tub difficult, and thus increasing production problems and quality errors.
  • the balance weight and the tub are fixed to each other at three points by means of bolts.
  • This mounting process is carried out only in a single axis, in the screw tightening axis. Since the screwing processes can be completed independently, when one of the three bolts is tightened excessively, deformations such as breaking, cracking, etc. occur.
  • a washing machine wherein a concrete balance weight reinforced by metal reinforcement elements is mounted to the tub via the connection members which are attached to the reinforcement elements.
  • a washing machine is disclosed wherein a ballast body is attached to the tub.
  • a fixing apparatus which is used for mounting the balance weight to the tub of the washing machine.
  • the extensions extending into the balance weight from the tub stretch sideways with the insertion of the fixing components therein, and grip the balance weight from inside.
  • the fixing components are connected to the balance weight before the assembly by means of breakable flanges.
  • a washing machine comprising a metal hub which circumferentially surrounds the balance weight with brackets.
  • the tub extensions fitted into the housings on the outer surface of the balance weight are screwed so as to stretch sideways, and supported by metal brackets.
  • the aim of the present invention is the realization of a washer/dryer comprising a balance weight which is efFiciently connected to the tub.
  • the washer/dryer realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a step which surrounds the bearing; a connection extension which surrounds the step such that the bearing is at the center; and a connection housing which is arranged on the surface of the balance weight facing the tub and wherein the connection extension is seated.
  • the connection extension is tightly fitted into the connection housing, and a form-fit connection is provided between the balance weight and the tub.
  • a contact surface is formed along the opposite surfaces of the balance weight and the tub.
  • the force is enabled to be dispersed in three axes.
  • the balance weight is mounted onto the tub and by means of the form-fit connection, the balance weight applies pressure onto the tub along the entire contact surface so as to be prevented from moving right and left, up and down, thus eliminating the risk of gap formation in the course of time.
  • the washer/dryer comprises, along the bearing, a plurality of first supports which extend outwards from the wall of the bearing so as to surround the bearing at certain intervals, a plurality of second supports at the same length as the step which extend between the step and the bearing at certain intervals.
  • the washer/dryer further comprises a plurality of third supports which extend from the connection extension towards the step. The first, second and third supports are arranged at equal intervals so as to complete 360 degrees.
  • third supports each placed at 15-degree intervals, and six first and second supports placed at equal intervals.
  • connection extension and the connection housing are circular.
  • the step is hexagonal.
  • the force acting along the connection member is distributed on the entire tub surface.
  • the bearing is positioned at the center of the step, and the second supports are disposed on the diagonals.
  • the washer/dryer (1) comprises a body; a tub (2) which is disposed into the body; a drum which is disposed in the tub (2), which rotates around its own axis and wherein the laundry is loaded; at least one balance weight (3) which is mounted onto the tub (2) and which remains between the tub (2) and the body; a connection member (4) which enables the balance weight (3) to be fixed to the tub (2); a connection hole (5) which is arranged on the balance weight (3) and through which the connection member (4) passes; a fixing housing (16) which surrounds the connection hole (5) at the surface of the balance weight (3) facing the tub (2); a bearing (6) which is positioned on the tub (2), which extends from the outer surface of the tub (2) towards the balance weight (3) and wherein the connection member (4), passing through the connection hole (5) on the balance weight (3) and extending towards the tub (2), is seated; a step (7) which surrounds the bearing (6); a connection extension (9) which surrounds the step (7) such that the bearing (6) is at the center; and a connection housing
  • connection member (4) which is fitted through the ceiling of the balance weight (3) moves through the connection hole (5) along the balance weight (3) and, from the end thereof protruding out of the balance weight (3), is fitted into the bearing (6) which overlaps with the connection hole (5).
  • connection extension (9) is tightly fitted into the connection housing (11).
  • a contact surface is formed along the opposite surfaces of the balance weight (3) and the tub (2).
  • the force is distributed over the tub (2) at the contact point of the connection member (4) and the force applied by the balance weight (3) and the tub (2) to each other is compensated at three axes. Consequently, by means of the form-fit connection, the force is enabled to be dispersed in three axes.
  • the balance weight (3) is mounted onto the tub (2) and by means of the form-fit connection, the balance weight (3) applies pressure onto the tub (2) along the entire contact surface so as to be prevented from moving right and left, up and down, thus eliminating the risk of gap formation in the course of time.
  • the washer/dryer (1) comprises, along the bearing (6), a plurality of first supports (8) which extend outwards from the wall of the bearing (6) so as to surround the bearing (6) at certain intervals, and a plurality of second supports (10) at the same length as the step (7) which extend between the step (7) and the bearing (6) at certain intervals ( Figure 3 ).
  • the washer/dryer (1) comprises a plurality of third supports (12) which extend from the connection extension (9) towards the step (7).
  • the third supports (12) are triangular ( Figure 4 ).
  • the first, second and third supports (8, 10 and 12) are arranged at equal intervals so as to complete 360 degrees.
  • the washer/dryer (1) comprises 24 third supports (12) placed each placed at 15-degree intervals.
  • a more efficient form-fit connection is formed between the balance weight (3) and the tub (2), and a contact surface is obtained between the balance weight (3) and the tub (2) along the seating surface at three axes.
  • the washer/dryer (1) comprises 6 first and second supports (8 and 10) placed at equal intervals.
  • connection extension (9) and the connection housing (11) are circular.
  • the force is compensated almost equally at three axes.
  • the step (7) is hexagonal.
  • the force acting along the connection member (4) is distributed on the entire tub (2) surface.
  • the bearing (6) is positioned at the center of the step (7), and the second supports (10) are disposed on the diagonals.
  • the washer/dryer (1) comprises preferably 6 auxiliary supports (13) at the part of the tub (2) remaining between the step (7) and the connection extension (9) which join the step (7) with the thirds supports (12).
  • the washer/dryer (1) comprises a housing (14) on the balance weight (3) wherein the head of the connection member (4) is placed and which prevents the latter from forming a protrusion on the balance weight (3); and a washer (15) which is positioned between the head of the connection member (4) and the balance weight (3) in the housing (14), and which enables the balance weight (3) to be connected to the tub (2) in a prestressed manner and which also enables the balance weight (3) to be connected to be tub (2) with a gapless and flexible connection method by applying force in both radial and axial directions.
  • the washer (15) is a spring washer and is in the form of a cap which covers the housing (14) wherein the connection member (4) is seated onto the balance weight (3) so as to be seated circumferentially.
  • the tub (2) is produced from plastic material.
  • the balance weight (3) is concrete.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP19798257.2A 2018-12-11 2019-11-04 A washer/dryer comprising a balance weight Active EP3894623B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2018/19085A TR201819085A2 (tr) 2018-12-11 2018-12-11 Denge ağirliği i̇çeren bi̇r yikayici / kurutucu
PCT/EP2019/080020 WO2020120024A1 (en) 2018-12-11 2019-11-04 A washer/dryer comprising a balance weight

Publications (2)

Publication Number Publication Date
EP3894623A1 EP3894623A1 (en) 2021-10-20
EP3894623B1 true EP3894623B1 (en) 2024-02-07

Family

ID=68468714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19798257.2A Active EP3894623B1 (en) 2018-12-11 2019-11-04 A washer/dryer comprising a balance weight

Country Status (3)

Country Link
EP (1) EP3894623B1 (tr)
TR (1) TR201819085A2 (tr)
WO (1) WO2020120024A1 (tr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3222479A1 (de) 1982-06-15 1983-12-15 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Zum schleudern eingerichtete trommelwaschmaschine
DE3740206A1 (de) 1987-11-27 1989-06-08 Bauknecht Hausgeraete Ausgleichsgewicht fuer waschmaschinen
DE4238686C1 (de) 1992-11-17 1994-03-31 Schwarzenberger Hausgeraete En Trommelwaschmaschine in mantelbeschickbarer Bauweise
ES2149641B1 (es) 1996-03-21 2001-05-16 Balay Sa Dispositivo de anclaje del contrapeso de lavadoras.
ES2155335B1 (es) 1998-06-10 2001-12-01 Balay Sa Contrapeso frontal para maquinas lavadoras y sistema de fijacion a la cuba.
DE10215254A1 (de) * 2002-04-07 2003-10-16 Wirthwein Ag Ballastgewicht für Waschmaschinen
ITMC20070006A1 (it) * 2007-01-16 2008-07-17 V I C Viterie Italia Centrale Srl Sistema per realizzare lo stabile fissaggio tra un corpo in materiale plastico ed uno in un differente materiale dotato di maggiore tenacita e durezza superficiale.
ITMC20080050A1 (it) * 2008-03-27 2009-09-28 Meccanica Generale Srl Sistema di ancoraggio dei contrappesi delle macchine lavatrici e lavasciugatrici.
KR20130012359A (ko) * 2011-07-25 2013-02-04 삼성전자주식회사 세탁기 및 그 세탁기의 웨이트밸런스 조립방법
DE102014224761B3 (de) * 2014-12-03 2016-03-31 BSH Hausgeräte GmbH Wäschepflegegerät mit einem Befestigungselement

Also Published As

Publication number Publication date
TR201819085A2 (tr) 2020-06-22
WO2020120024A1 (en) 2020-06-18
EP3894623A1 (en) 2021-10-20

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