US20100206015A1 - Tub for washer or washer/dryer machine provided with conduits - Google Patents
Tub for washer or washer/dryer machine provided with conduits Download PDFInfo
- Publication number
- US20100206015A1 US20100206015A1 US12/658,299 US65829910A US2010206015A1 US 20100206015 A1 US20100206015 A1 US 20100206015A1 US 65829910 A US65829910 A US 65829910A US 2010206015 A1 US2010206015 A1 US 2010206015A1
- Authority
- US
- United States
- 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.)
- Abandoned
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Images
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.
- 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.
- the tub for washer or washer/dryer according to the present invention comprises:
- a tub body composed of a basically cylindrical lateral wall connected by means of a circular connection section to a bottom wall, and
- a cover provided with a circular peripheral section coupled with said bottom wall of the tub body, in such a way to form a box-shaped structure.
- 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.
- FIG. 1 is an exploded perspective view of a washing assembly for washer according to the known art
- FIG. 1A is an exploded perspective view of an improved tub for washer according to the known art
- FIG. 2 is an exploded partially-cut perspective view of a first embodiment of the tub of the invention
- FIG. 3 is a perspective view of the tub of FIG. 2 after assembly
- FIG. 4 is a cross-sectional view of a pressure intake cover of the tub of FIG. 3 ;
- FIG. 5 is the same view as FIG. 2 , except for it shows a variant of the pressure intake cover
- FIG. 6 is a back view of the tub of FIG. 5 after assembly
- FIG. 7 is a cross-sectional view along plane VII-VII of FIG. 6 ;
- FIG. 8 is an exploded perspective view of a second embodiment of the tub of the invention.
- FIG. 9 is a perspective view of the tub of FIG. 8 after assembly.
- FIG. 10 is a cross-sectional view of a recirculation conduit of the tub of FIG. 9 .
- FIGS. 2 and 3 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 ( 3 a ) branching off from a central hub ( 3 b ) 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)
- Cleaning By Liquid Or Steam (AREA)
- Detergent Compositions (AREA)
- Sink And Installation For Waste Water (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMC2009A000027 | 2009-02-13 | ||
ITMC2009A000027A IT1392894B1 (it) | 2009-02-13 | 2009-02-13 | Vasca per macchina lavatrice o lavasciugatrice provvista di condotti. |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100206015A1 true US20100206015A1 (en) | 2010-08-19 |
Family
ID=41104577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/658,299 Abandoned US20100206015A1 (en) | 2009-02-13 | 2010-02-09 | Tub for washer or washer/dryer machine provided with conduits |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100206015A1 (ru) |
EP (1) | EP2218816B1 (ru) |
CN (1) | CN101812794A (ru) |
IT (1) | IT1392894B1 (ru) |
RU (1) | RU2010105083A (ru) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD774718S1 (en) * | 2015-06-19 | 2016-12-20 | Lg Electronics Inc. | Washing machine tub |
USD776377S1 (en) * | 2015-06-19 | 2017-01-10 | 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 |
US10693336B2 (en) | 2017-06-02 | 2020-06-23 | Whirlpool Corporation | Winding configuration electric motor |
US10704180B2 (en) | 2016-09-22 | 2020-07-07 | Whirlpool Corporation | Reinforcing cap for a tub rear wall of an appliance |
Families Citing this family (1)
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 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004048556B4 (de) * | 2004-10-04 | 2008-06-05 | 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 |
ES2333148T3 (es) * | 2006-04-27 | 2010-02-17 | Electrolux Home Products Corporation N.V. | Sistema integrado de rebosadero de la cuba para maquina lavadora de carga superior. |
WO2008102396A2 (en) * | 2007-02-21 | 2008-08-28 | Meccanica Generale S.R.L. | Washing machine tank provided with external reinforcing cap on bottom wall |
-
2009
- 2009-02-13 IT ITMC2009A000027A patent/IT1392894B1/it active
-
2010
- 2010-02-01 EP EP10152286A patent/EP2218816B1/en not_active Not-in-force
- 2010-02-09 US US12/658,299 patent/US20100206015A1/en not_active Abandoned
- 2010-02-11 CN CN201010116287A patent/CN101812794A/zh active Pending
- 2010-02-12 RU RU2010105083/12A patent/RU2010105083A/ru not_active Application Discontinuation
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD774718S1 (en) * | 2015-06-19 | 2016-12-20 | Lg Electronics Inc. | Washing machine tub |
USD776377S1 (en) * | 2015-06-19 | 2017-01-10 | 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 |
US10897167B2 (en) | 2015-12-11 | 2021-01-19 | Whirlpool Corporation | Multi-component rotor for an electric motor of an appliance |
US11374448B2 (en) | 2015-12-11 | 2022-06-28 | Whirlpool Corporation | Multi-component rotor for an electric motor of an appliance |
US11641138B2 (en) | 2015-12-11 | 2023-05-02 | Whirlpool Corporation | Multi-component rotor for an electric motor of an appliance |
US11909265B2 (en) | 2015-12-11 | 2024-02-20 | 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 |
US11473231B2 (en) | 2016-09-22 | 2022-10-18 | 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 |
US11482901B2 (en) | 2017-06-02 | 2022-10-25 | Whirlpool Corporation | Winding configuration electric motor |
Also Published As
Publication number | Publication date |
---|---|
IT1392894B1 (it) | 2012-04-02 |
EP2218816A1 (en) | 2010-08-18 |
ITMC20090027A1 (it) | 2010-08-14 |
EP2218816B1 (en) | 2013-04-03 |
CN101812794A (zh) | 2010-08-25 |
RU2010105083A (ru) | 2011-08-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MECCANICA GENERALE S.R.L., ITALY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MANCINI, STEFANO;BACELLI, GIANFRANCO;REEL/FRAME:024004/0674 Effective date: 20100201 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |