EP2412863B1 - Behälter-Trommelgruppe für Waschmaschinen, Wäschetrockner oder Trockner - Google Patents

Behälter-Trommelgruppe für Waschmaschinen, Wäschetrockner oder Trockner Download PDF

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Publication number
EP2412863B1
EP2412863B1 EP10425264.8A EP10425264A EP2412863B1 EP 2412863 B1 EP2412863 B1 EP 2412863B1 EP 10425264 A EP10425264 A EP 10425264A EP 2412863 B1 EP2412863 B1 EP 2412863B1
Authority
EP
European Patent Office
Prior art keywords
tank
basket
bearing
pulley
shaft
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.)
Not-in-force
Application number
EP10425264.8A
Other languages
English (en)
French (fr)
Other versions
EP2412863A1 (de
Inventor
Aldo Fumagalli
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.)
Candy SpA
Original Assignee
Candy SpA
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 Candy SpA filed Critical Candy SpA
Priority to ES10425264.8T priority Critical patent/ES2445142T3/es
Priority to EP10425264.8A priority patent/EP2412863B1/de
Publication of EP2412863A1 publication Critical patent/EP2412863A1/de
Application granted granted Critical
Publication of EP2412863B1 publication Critical patent/EP2412863B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • 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
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/269—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for the bearing of the rotary 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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 

Definitions

  • the present invention refers to a tank-basket group for a washing machine, dryer or washer dryer.
  • washing machines comprise an outer housing, a washing tank arranged inside the outer housing and suitable for containing the lye, as well as a perforated clothes basket, arranged rotatably inside the washing tank and defining inside a space for containing the clothes to be washed.
  • the clothes basket is usually made up of a back wall through which the basket is rotatably fixed inside the tank, a front wall defining a loading opening through which it is possible to access the inside of the basket and a side wall that is perforated so as to allow the exchange of lye between the washing rank and the inside of the basket.
  • the clothes basket is usually made up of a back wall and a front wall, through which the basket is rotatably fixed inside the tank, as well as a generally cylindrical and perforated side wall to allow the exchange of lye between the washing tank and the inside of the basket, in which the side wall defines a loading opening through which it is possible to access the inside of the basket.
  • known washing machines comprise a motor and a belt drive that transmits the rotary motion of the motor to a pulley arrange outside the washing tank and that is connected so as to rotate as a unit with the clothes basket.
  • the clothes are agitated and rolled around in the lye and the lye itself is pulled upwards in rotation by the basket from which it falls on the clothes which are completely soaked and softened, so as to transfer the impurities to the washing and rinsing lye.
  • the purpose of the present invention is therefore that of proposing a tank-basket group for washing machines, washer dryers or dryers having characteristics such as to reduce the bulk that cannot be used for containing clothes.
  • a particular purpose of the invention is that of proposing a tank-basket group having an overall depth that is smaller for the same depth of the clothes basket.
  • figure 1 is a schematic view, in vertical section, of a washing machine according to an embodiment of the invention
  • figure 2 is a schematic view, in vertical section, of a detail of a tank-basket group of the washing machine in figure 1 ;
  • figure 3 is a longitudinal section view of a portion of a support shaft of the tank-basket group according to an embodiment
  • figure 4 is a front view of the support shaft in figure 3 ;
  • figure 5 is a longitudinal section view of a connection portion of a pulley of the tank-basket group according to an embodiment
  • figure 6 is a front view of the connection portion in figure 5 .
  • the machine 1 comprises an outer housing 2, a washing tank 3 arranged inside the outer housing 2 and suitable for containing the lye, as well as a perforated clothes basket 4, arranged inside the washing tank 3 in a rotatable manner around a rotation axis R and defining a space 5, on the inside, for containing the clothes to be washed and/or dried.
  • the clothes basket 4 can be made up of a back wall 6 through which the basket 4 is rotatably fixed to a support wall 12 of the tank 3, a front wall 7 defining a loading opening 9 through which it is possible to access the inside of the basket 4 and a side wall 8 that is perforated so as to allow the exchange of lye between the washing tank 3 and the inside of the basket 4 ( Figure 1 ).
  • the clothes basket 4 is usually made up of a back wall 6 and a front wall 7, through which the basket is rotatably fixed to opposite support walls 12 of the tank 3, as well as a side wall 8 generally cylindrical and perforated so as to allow the exchange of lye between the washing tank and the inside of the basket, in which the side wall defines a loading opening (not illustrated) through which it is possible to access the inside of the basket.
  • the machine 1 comprises a motor 10 and a drive 11, for example a belt drive, which transmits the rotary motion of the motor 10 to a pulley 13 arranged outside the washing tank 3 and connected so as to rotate as a unit with the clothes basket 4.
  • a drive 11 for example a belt drive
  • the tank 3 - basket 4 group also comprises a support shaft 14 that extends parallel to the rotation axis R and projects from the back wall 6 of the basket 4 towards the outside of the basket.
  • the shaft 14 is rotatably received, through at least a first bearing 16, in a support seat 15 formed in the support wall 12 of the tank 3, and comprises a back end 17 facing outwards from the tank 3.
  • the pulley 13 comprises a male fixing portion 18 extending parallel to the rotation axis R and projecting towards the tank 3 or, in other words, from outside of the tank towards the inside.
  • the back end 17 of the shaft 14 forms a tubular wall 19 with a radially outer surface 20 (with reference to the rotation axis R) that forms a first bearing housing 21 that receives the first bearing and a radially inner surface 22 that defines a female pulley seat 23 formed inside the back end 17 of the shaft 14.
  • the female pulley seat 23 receives the male fixing portion 18 of the pulley 13 axially in the thickness of the support wall 12 of the tank 3 ( Figure 2 ).
  • the male fixing portion 18 of the pulley 13 extends axially in the area of the first bearing 16.
  • the inner surface 22 of the pulley seat 23 can be profiled, for example notched through a plurality of longitudinal grooves 25 and even the male fixing portion 18 of the pulley 13 can form an outer surface 24 with a matching shape, for example notched and suitable for engaging the inner surface 22 through a shape coupling rotating as a unit around the rotation axis R.
  • the profiling, for example notching 25 of the pulley seat 23 extends axially completely inside the axial extension of the first bearing 16.
  • the male fixing portion 18 can also comprise an axial hole, preferably central, that receives a locking screw 27 and that opens into a back surface 28 opposite the tank 3, in a back cavity 29 having an axial with and depth such as to at least partially receive a nut or a head 30 of the locking screw 27.
  • the back cavity 29 has an axial depth greater than 2/3 of the axial height of the head 30 or of the nut of the locking screw 27.
  • the back cavity 29 completely receives the head 30 or the nut of the locking screw 27, so that the screw does not project axially out from the back cavity 29.
  • the locking screw remains completely inside the axial bulk of the pulley and makes it possible to bring the tank-basket group, with the pulley, closer to the outer housing 2 of the washing machine 1.
  • the locking screw 27 can be screwed in an internally threaded locking hole 31, formed in a bottom 32 of the pulley seat 23.
  • the second bearing 33 fitted onto an annular surface 34 of the shaft 14 between the first bearing 16 and the back wall 6 of the basket 4 and, similarly to the first bearing 16, the second bearing 33 is also received in the support seat 15 of the tank 3, through an outer ring.
  • the locking hole 31 extends axially up to inside the area of the second bearing 33.
  • the shaft 14 can also comprise an outer shoulder 35 facing outwards from the tank 3 and preferably configured as a circumferential step that axially defines the first bearing housing 21 on a front side.
  • the pulley 13 forms a clamping surface 36 that is preferably annular and substantially perpendicular to the rotation axis R, said clamping surface 36 facing towards the tank 3 and being suitable for engaging a back surface 37 of the first bearing 16 to clamp the first bearing 16 axially against the outer shoulder 36 of the shaft 14, when the male fixing portion 18 is locked in the female pulley seat 23.
  • the first bearing 16 projects axially beyond the back end 17 of the shaft 14.
  • the second bearing 33 preferably has an inner diameter that is greater with respect to the internal diameter of the first bearing 16, so that the outer shoulder 35 can be obtained through just the processing of the first bearing housing and without further reduction of diameter of the shaft at the annular surface 34.
  • This configuration also makes it possible to have an easy assembly of the tank-basket group through the insertion of the shaft 14 from inside of the tank into the support seat 15 with the bearings 16, 33 already mounted.
  • the axial depth D38 of the pulley seat 23 is greater than half of the axial distance D40 between a back edge 39 of the pulley 13 (meant as the furthest back surface or portion of the pulley) and its clamping surface 36 in contact with the first bearing 16.
  • a frontal end 41 of the shaft 14 is anchored to the back wall 6 of the basket 4 so that the shaft 14 rotates with the basket 4.
  • the front end 41 can comprise circumferential anti-extraction grooves 42 engaged by corresponding circumferential protuberances 43 of the back wall 6 and/or longitudinal anti-rotation grooves 44 engaged by corresponding longitudinal protuberances 45 of the back wall 6.
  • the back wall 6 of the basket can comprise an anchoring body 46 and the front end 41 of the shaft is embedded in the anchoring body 46 during its formation through moulding.

Landscapes

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

Claims (14)

  1. Behälter-Trommelgruppe (3, 4, 13, 14) für eine Waschmaschine (1), einen Waschtrockner oder Trockner, wobei die Behälter-Trommelgruppe umfasst:
    - einen Waschbehälter (3), welcher dazu geeignet ist, die Lauge zu aufzunehmen, und welcher eine Stützwand (12) aufweist,
    - eine Waschtrommel (4), welche innerhalb des Waschbehälters (3) angeordnet ist, wobei die Waschtrommel (4) eine Rückwand (6) aufweist, welche drehbar mit der Stützwand (12) des Waschbehälters (3) verbunden ist,
    - eine Antriebsscheibe (13), welche außerhalb des Waschbehälters (3) angeordnet ist und derart verbunden ist, dass sie sich mit der Rückwand (6) der Waschtrommel (4) dreht,
    - eine Welle (14), welche parallel zur Drehachse (R) verläuft und von der Rückwand (6) des Behälters (3) vorsteht und drehbar in einem Stützsitz (15) aufgenommen ist, der in der Stützwand (12) des Behälters (3) gebildet ist, wobei die Welle (14) ein rückwärtiges Ende (17) aufweist, welches nach außen von dem Behälter (3) weist,
    wobei
    - die Scheibe (13) einen männlichen Befestigungsabschnitt (18) aufweist, welcher sich parallel zur Drehachse (R) erstreckt und zu dem Behälter (3) hin vorsteht,
    - das rückwärtige Ende (17) der Welle (14) eine rohrförmige Wandung (19) mit einer Außenfläche (20) bildet, welche ein erstes Lagergehäuse (21) bildet, das ein erstes Lager (16) aufnimmt, und eine Innenfläche (22) bildet, welche einen weiblichen Scheibensitz (23) definiert, der den männlichen Befestigungsabschnitt (18) der Scheibe (13) axial in der Dicke der Sützwand (12) des Behälters (3) aufnimmt,
    - die Welle (14) eine äußere Schulter (35) umfasst, welche nach außen von dem Behälter (3) weist und axial das erste Lagergehäuse (21) definiert,
    dadurch gekennzeichnet, dass die Scheibe (13) eine ringförmige Klemmfläche (36) bildet, welche im Wesentlichen senkrecht zur Drehachse (R) verläuft und zu dem Behälter (3) hin weist, wobei die Klemmfläche (36) mit einer Rückfläche (37) des ersten Lagers (16) in Eingriff steht, um das erste Lager (16) axial gegen die äußere Schulter (35) der Welle festzusetzen, wenn der männliche Befestigungsabschnitt (18) in dem weiblichen Scheibensitz (23) festgesetzt ist.
  2. Behälter-Trommelgruppe nach Anspruch 1, wobei sich der männliche Befestigungsabschnitt (18) der Scheibe (13) axial in dem Bereich des ersten Lagers (16) erstreckt.
  3. Behälter-Trommelgruppe nach einem der vorhergehenden Ansprüche, wobei die Innenfläche (22) des Scheibensitzes (23) eingekerbt ist und der männliche Befestigungsabschnitt (18) eine Außenfläche (24) bildet, welche eingekerbt ist und dazu geeignet ist, mit der Innenfläche (22) durch Formschluss in Eingriff zu treten, um sich als Einheit zu drehen.
  4. Behälter-Trommelgruppe nach Anspruch 3, wobei sich die Einkerbung (25) des Scheibensitzes (23) axial vollständig innerhalb der axialen Erstreckung des ersten Lagers (16) erstreckt.
  5. Behälter-Trommelgruppe nach einem der vorhergehenden Ansprüche, wobei der männliche Befestigungsabschnitt (18) ein Loch (26) umfasst, welches eine Feststellschraube (27) aufnimmt und wobei die Scheibe (13) in einer dem Behälter (3) gegenüberliegenden Rückfläche (28) einen hinteren Hohlraum (29) zum Aufnehmen einer Mutter oder eines Kopfes (30) der Feststellschraube (27) bildet.
  6. Behälter-Trommelgruppe nach Anspruch 5, wobei der hintere Hohlraum (29) eine axiale Tiefe aufweist, die größer als 2/3 der axialen Höhe des Kopfes (30) oder der Mutter der Feststellschraube (27) ist.
  7. Behälter-Trommelgruppe nach Anspruch 5, wobei der hintere Hohlraum (29) den Kopf (30) oder die Mutter der Feststellschraube (27) vollständig aufnimmt, so dass er bzw. sie nicht axial nach außen von dem hinteren Hohlraum (29) vorsteht.
  8. Behälter-Trommelgruppe nach einem der vorhergehenden Ansprüche, wobei die Welle (14) ein Feststellloch (31) mit einem Innengewinde umfasst, wobei das Feststellloch (31) in einem Boden (32) des Scheibensitzes (23) gebildet ist und dazu geeignet ist, eine Feststellschraube (27) aufzunehmen.
  9. Behälter-Trommelgruppe nach Anspruch 8, umfassend ein zweites Lager (33), welches auf einer ringförmigen Fläche (34) der Welle zwischen dem ersten Lager (16) und der Rückwand (6) der Trommel aufgesetzt ist, wobei sich das Feststellloch (31) axial nach oben in das Innere des Bereichs des zweiten Lagers (33) erstreckt.
  10. Behälter-Trommelgruppe nach einem der vorhergehenden Ansprüche, wobei sich das erste Lager (16) axial über das rückwärtige Ende (17) der Welle (14) hinweg erstreckt.
  11. Behälter-Trommelgruppe nach einem der vorhergehenden Ansprüche, umfassend ein zweites Lager (33), welches auf eine ringförmige Fläche (34) der Welle (15) zwischen dem ersten Lager (16) und der Rückwand (6) der Trommel (4) aufgesetzt ist, wobei das zweite Lager (33) einen Innendurchmesser aufweist, welcher größer als der Innendurchmesser des ersten Lagers (16) ist.
  12. Behälter-Trommelgruppe nach einem der vorhergehenden Ansprüche, wobei eine axiale Tiefe (D38) des Scheibensitzes (23) größer als die Hälfte des axialen Abstands (D40) zwischen einer hinteren Kante (39) der Scheibe und ihrer in Kontakt mit dem ersten Lager (16) stehenden Klemmfläche (36) ist, wobei das Verhältnis (D38/D40) zwischen der axialen Tiefe (D38) und dem axialen Abstand (D40) vorzugsweise im Bereich von 0,75 bis 1,25 liegt.
  13. Behälter-Trommelgruppe nach einem der vorhergehenden Ansprüche, wobei die Welle (14) einen vorderes Ende (41) umfasst, welches mit der Rückwand (6) der Trommel (4) verankert ist, so dass sich die Welle mit der Trommel dreht, wobei das vordere Ende (41) umfasst:
    - Entnahmeverhinderungs-Umfangsnuten (42), welche mit entsprechenden Umfangsvorsprüngen (43) der Rückwand in Eingriff stehen,
    - Drehverhinderungs-Längsnuten (44), welche mit entsprechenden Längsvorsprüngen (45) der Rückwand in Eingriff stehen.
  14. Waschmaschine (1), Waschtrockner oder Trockner, umfassend eine Behälter-Trommelgruppe nach einem der vorhergehenden Ansprüche.
EP10425264.8A 2010-07-30 2010-07-30 Behälter-Trommelgruppe für Waschmaschinen, Wäschetrockner oder Trockner Not-in-force EP2412863B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES10425264.8T ES2445142T3 (es) 2010-07-30 2010-07-30 Grupo de tanque-cestilla para una máquina lavadora, una lavadora-secadora o una secadora
EP10425264.8A EP2412863B1 (de) 2010-07-30 2010-07-30 Behälter-Trommelgruppe für Waschmaschinen, Wäschetrockner oder Trockner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10425264.8A EP2412863B1 (de) 2010-07-30 2010-07-30 Behälter-Trommelgruppe für Waschmaschinen, Wäschetrockner oder Trockner

Publications (2)

Publication Number Publication Date
EP2412863A1 EP2412863A1 (de) 2012-02-01
EP2412863B1 true EP2412863B1 (de) 2013-11-06

Family

ID=43530997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10425264.8A Not-in-force EP2412863B1 (de) 2010-07-30 2010-07-30 Behälter-Trommelgruppe für Waschmaschinen, Wäschetrockner oder Trockner

Country Status (2)

Country Link
EP (1) EP2412863B1 (de)
ES (1) ES2445142T3 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1161214A (en) * 1966-08-31 1969-08-13 Philips Electronic Associated Improvements in or relating to Domestic Washing Machines.
IT984404B (it) * 1973-03-07 1974-11-20 Skf Ind Trading & Dev Sistema per sopportare in rotazione il cestello di una macchina lava trice e per trasmettere ad esso mediante una puleggia moto rota torio
FR2499112A1 (fr) * 1981-01-30 1982-08-06 Thomson Brandt Palier etanche et machine a laver comportant un tel palier
ES2343975T3 (es) * 2007-03-07 2010-08-13 Electrolux Home Products Corporation N.V. Lavadora domestica dotada de una cruceta de tambor integrada.
CN201236285Y (zh) * 2008-07-28 2009-05-13 南京乐金熊猫电器有限公司 滚筒洗衣机防漏水装置

Also Published As

Publication number Publication date
EP2412863A1 (de) 2012-02-01
ES2445142T3 (es) 2014-02-28

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