EP2218816A1 - Laugebehälter mit Leitungen für eine Waschmaschine oder einen Trockner - Google Patents

Laugebehälter mit Leitungen für eine Waschmaschine oder einen Trockner Download PDF

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Publication number
EP2218816A1
EP2218816A1 EP10152286A EP10152286A EP2218816A1 EP 2218816 A1 EP2218816 A1 EP 2218816A1 EP 10152286 A EP10152286 A EP 10152286A EP 10152286 A EP10152286 A EP 10152286A EP 2218816 A1 EP2218816 A1 EP 2218816A1
Authority
EP
European Patent Office
Prior art keywords
tub
flange
cover
tub body
washer
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.)
Granted
Application number
EP10152286A
Other languages
English (en)
French (fr)
Other versions
EP2218816B1 (de
Inventor
Stefano Mancini
Gianfranco Bacelli
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.)
Meccanica Generale SRL
Original Assignee
Meccanica Generale SRL
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 Meccanica Generale SRL filed Critical Meccanica Generale SRL
Publication of EP2218816A1 publication Critical patent/EP2218816A1/de
Application granted granted Critical
Publication of EP2218816B1 publication Critical patent/EP2218816B1/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
    • D06F37/26—Casings; Tubs
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices

Definitions

  • the present patent application for industrial invention relates to a tub for washer or washer-dryer machine.
  • the following description makes specific reference to a washer, it being understood that the invention is also extended to a washer/dryer machine.
  • a washer comprises a tub (1) in which a rotary drum (300) is mounted and driven into rotation by an electric motor.
  • a disc-shaped flange (400) is mounted on the front of the tub (1), commonly defined as loading mouth (400), defining an opening used to load laundry into the drum (300).
  • the tub comprises a cylindrical wall (20) open on the front that is connected to a bottom wall (2).
  • the bottom wall (2) is reinforced because it must receive a bearing-holder in which the drive shaft that drives the drum into rotation is rotatably mounted.
  • a tub (1) comprising a cylindrical lateral wall (20) joined by means of a connection wall (21) to a smooth bottom wall (2) on which a suitably shaped cap (3) acting as reinforcement is engaged and fixed.
  • the cap (3) and the bottom wall (2) are provided with axial holes (32, 22) in which a bearing support (SP) is mounted to rotatably support the shaft of the drum.
  • SP bearing support
  • washers comprise hoses, conduits and chambers connected to the tub, which are used for several applications, in order to control various functions of the washer.
  • a pressure intake cover being a closed volume connected to a pressure switch to measure the water level inside the tub.
  • the pressure intake cover is obtained in the separation section between the lateral wall (20) of the tub and the loading mouth (400).
  • This solution is limitative whenever it is necessary to position the tub assembly with axis with upward inclination inside the casing.
  • the pressure intake cover would be mainly in the front, and not in the lowest point of the casing. Such a condition is not favourable for the good operation of the pressure intake cover.
  • a recirculation conduit is used to provide communication between the lower part and the upper part of the tub.
  • the function of the recirculation conduit is to recirculate pumped water, bringing back in the drum with the laundry the soapy water that is contained in the lower part of the tub outside the drum. This operation allows for fully using the soap, thus increasing the quality of washing (washing class).
  • Said recirculation conduit which is separated from the tub, represents an additional cost both for the purchasing price of the part and for its assembly.
  • the purpose of the present invention is to eliminate the drawbacks of the prior art, by devising a tub for washer that is practical, versatile, inexpensive and simple to make and assemble. This purpose has been achieved according to the invention with the characteristics described in the enclosed independent claim 1. Advantageous embodiments are disclosed in the dependent claims.
  • the tub for washer or washer/dryer according to the present invention comprises:
  • the tub body comprises at least a first flange that is coupled with at least a second flange provided in said cover, in such a way to generate a fluid-tight chamber or conduit that can be used for various functions of the appliance, such as pressure intake cover or conduit for passage of fluid.
  • a first embodiment of the tub for washer according to the present invention is disclosed, which is generally referred to with numeral (1).
  • the tub (1) comprises a tub body composed of a cylindrical wall (20) open on the front and provided with a circular connection section (21) that is connected to a preferably smooth bottom wall (2).
  • a cover (3) is engaged and fixed on the bottom wall (2).
  • the cover (3) is provided with a circular peripheral section (31) that is advantageously fixed on the peripheral section of the tub body by means of ultrasound welding.
  • the cover (3) can be fixed to the tub body also by means of thermowelding, gluing or suitable fixing means.
  • the cover (3) is provided with cavities facing the bottom wall (2) in such a way to form a box-shaped structure with it.
  • the cover (3) is provided with a plurality of spokes (3a) branching off from a central hub (3b) adapted to house a bearing support (SP) that rotatably supports a shaft of the drum driven into rotation by an electric motor of the washer.
  • SP bearing support
  • a pressure intake cover (4) is arranged between the connection section (21) of the tub body and the cover (3).
  • a first flange (25) protrudes radially outwards from the connection section (21) of the tub body.
  • the flange (25) is composed of a flat plate provided with a recessed housing (26) that forms a chamber in communication with the inside of the tub.
  • a second flange (35) protrudes radially outwards from the peripheral section (31) of the cover in such a way to be coupled with the first flange (25), forming a fluid-tight chamber (40), as shown in Fig. 4 , which is the pressure intake cover (4).
  • the recessed housing (26) can be obtained only in the flange (35) of the cover or in both flanges (25 and 35).
  • tightness means such as gaskets
  • gaskets can be provided between the two flanges (25, 35) to ensure water-tightness of the chamber (40) of the pressure intake cover.
  • said gaskets are not necessary if gluing or welding technology is used to assemble the two parts; in fact, water-tightness is equally guaranteed in these two cases.
  • the flange (35) of the cover is connected to the peripheral section (31) of the cover by means of a connection section (34) arranged above the connection section (21) of the tub body. Still referring to Fig. 2 , the flange (35) of the cover is provided with a shank (36) with through hole. A pipe (5) is connected to the shank (36) and to a pressure switch (not shown) to measure the pressure in the chamber (40) and consequently the water level inside the tub.
  • FIGs. 5 - 7 show a variant of the tub (1), in which the recessed housing (226) is obtained in the second flange (35) joined to the cover. A hole (225) in communication with the inside of the tub is obtained in the first flange (25) joined to the tub body, as shown in Fig. 7 .
  • the shank (36) for connection of the pipe (5) is obtained in the recessed housing (226) of the cover flange.
  • Figs. 8 and 9 illustrate a second embodiment of the tub of the invention, generally indicated with numeral (101), wherein a recirculation conduit (6) is arranged between the connection section (21) of the tub body and the peripheral section (31) of the cover (3).
  • a first flange (125) follows the connection section (21) of the tub body for an arc of circle of approximately 80° - 120°.
  • the flange (125) consists in a flat plate with curved profile.
  • the curved flange (125) has a first end (127) that protrudes radially outwards from the connection section (21) of the tub body and a second end with a hole (128) that communicates with a conduit (129) obtained on the cylindrical lateral wall (20) of the tub body.
  • a second flange (135) complementary to the first flange (125) follows the peripheral section (31) of the cover for an arc of circle of approximately 80° - 120°.
  • the flange (135) is composed of a curved plate that defines a concave cavity (136) (see Fig. 10 ).
  • the concave flange (135) has a first end (137) that protrudes radially outwards from the peripheral section (31) of the cover and a second end with a cap (138) that covers the hole (128) of the first flange (125).
  • the end (137) of the second flange ends with a shank (7) with inlet opening (70).
  • a pipe is connected to the inlet opening (70), which is connected to a pump that draws in the lower part of the tub.
  • the concave cavity (136) can be obtained only in the flange (125) of the tub body or in both flanges (125 and 135).
  • tightness means such as gaskets, can be provided between the two flanges (125, 135) to ensure water-tightness of the recirculation conduit (60).
  • Both the tub body and the cover together with the corresponding flanges are made of moulded plastic material.

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)
  • Cleaning By Liquid Or Steam (AREA)
  • Detergent Compositions (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
EP10152286A 2009-02-13 2010-02-01 Laugebehälter mit Leitungen für eine Waschmaschine oder einen Trockner Not-in-force EP2218816B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMC2009A000027A IT1392894B1 (it) 2009-02-13 2009-02-13 Vasca per macchina lavatrice o lavasciugatrice provvista di condotti.

Publications (2)

Publication Number Publication Date
EP2218816A1 true EP2218816A1 (de) 2010-08-18
EP2218816B1 EP2218816B1 (de) 2013-04-03

Family

ID=41104577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10152286A Not-in-force EP2218816B1 (de) 2009-02-13 2010-02-01 Laugebehälter mit Leitungen für eine Waschmaschine oder einen Trockner

Country Status (5)

Country Link
US (1) US20100206015A1 (de)
EP (1) EP2218816B1 (de)
CN (1) CN101812794A (de)
IT (1) IT1392894B1 (de)
RU (1) RU2010105083A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104562550A (zh) * 2015-02-15 2015-04-29 海信（山东）冰箱有限公司 一种滚筒洗衣机内筒及滚筒洗衣机
USD776377S1 (en) * 2015-06-19 2017-01-10 Lg Electronics Inc. Washing machine tub
USD774718S1 (en) * 2015-06-19 2016-12-20 Lg Electronics Inc. Washing machine tub
US10326323B2 (en) 2015-12-11 2019-06-18 Whirlpool Corporation Multi-component rotor for an electric motor of an appliance
US10704180B2 (en) 2016-09-22 2020-07-07 Whirlpool Corporation Reinforcing cap for a tub rear wall of an appliance
US10693336B2 (en) 2017-06-02 2020-06-23 Whirlpool Corporation Winding configuration electric motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057942B3 (de) * 2004-11-30 2005-12-08 Miele & Cie. Kg Kunststofflaugenbehälter für eine Waschmaschine mit Luftfalle
DE102004057943B3 (de) * 2004-11-30 2005-12-08 Miele & Cie. Kg Kunststofflaugenbehälter für eine Waschmaschine
EP1643028A1 (de) * 2004-10-04 2006-04-05 Miele & Cie. KG Laugenbehälter für eine Waschmaschine
EP1849906A1 (de) * 2006-04-27 2007-10-31 Electrolux Home Products Corporation N.V. Integrierte Laugenbehälter-Überlauf-Vorrichtung für eine obenbeschickbare Waschmaschine
WO2008102396A2 (en) 2007-02-21 2008-08-28 Meccanica Generale S.R.L. Washing machine tank provided with external reinforcing cap on bottom wall

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1643028A1 (de) * 2004-10-04 2006-04-05 Miele & Cie. KG Laugenbehälter für eine Waschmaschine
DE102004057942B3 (de) * 2004-11-30 2005-12-08 Miele & Cie. Kg Kunststofflaugenbehälter für eine Waschmaschine mit Luftfalle
DE102004057943B3 (de) * 2004-11-30 2005-12-08 Miele & Cie. Kg Kunststofflaugenbehälter für eine Waschmaschine
EP1849906A1 (de) * 2006-04-27 2007-10-31 Electrolux Home Products Corporation N.V. Integrierte Laugenbehälter-Überlauf-Vorrichtung für eine obenbeschickbare Waschmaschine
WO2008102396A2 (en) 2007-02-21 2008-08-28 Meccanica Generale S.R.L. Washing machine tank provided with external reinforcing cap on bottom wall

Also Published As

Publication number Publication date
IT1392894B1 (it) 2012-04-02
RU2010105083A (ru) 2011-08-20
EP2218816B1 (de) 2013-04-03
US20100206015A1 (en) 2010-08-19
CN101812794A (zh) 2010-08-25
ITMC20090027A1 (it) 2010-08-14

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