EP0405068A1 - Verstärkter Laugenbehälter, insbesondere für Waschmaschinen - Google Patents
Verstärkter Laugenbehälter, insbesondere für Waschmaschinen Download PDFInfo
- Publication number
- EP0405068A1 EP0405068A1 EP90106471A EP90106471A EP0405068A1 EP 0405068 A1 EP0405068 A1 EP 0405068A1 EP 90106471 A EP90106471 A EP 90106471A EP 90106471 A EP90106471 A EP 90106471A EP 0405068 A1 EP0405068 A1 EP 0405068A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tub
- edge
- reinforced
- bottom edge
- tub body
- 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
Links
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
- D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
- D06F37/263—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements assembled from at least two elements connected to each other; Connecting or sealing means 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 reinforced tub, particularly for laundry washing machines.
- the known washing machines are generally provided with a horizontal rotary drum contained in a fixed tub to be loaded with laundry at the front side or from above.
- the tub has a detachable wall for assembling the drum inside the tub and for the possible disassembling of the drum for repairing.
- the detachable wall is usually secured to the tub body by means of a fastening strip, of truncated-cone shape, that tightens a gasket between the tub body and the back wall, providing a water tight seal during the operation of the machine.
- a fastening system of the kind described above ensures that the two tub portions, the back wall and the tub body, remain integral and endure the remarkable mechanical stresses caused by the drum motion, especially during centrifugation.
- tubs are usually made of stainless steel and, since this material is relatively expensive, there has been a trend to reduce as much as possible the thickness of the tub, by means of several contrivances.
- the tub edge is made of an excessively thin sheet, the washing and centrifugation stresses bend and warp the sheet at the junction, causing the offset of the drum and water leaks, the back wall and the tub body not being securely integral.
- the back wall is sometimes fastened to the tub body by means of a cast iron cross member lying outside the back wall and fastened to the junction edge.
- This system raises the production cost of the washing machine because of the greater number of assembling operations and of component parts, and furthermore raises the weight of the tub.
- the main aim of the present invention is to provide a reinforced tub for washing machines having such a fastening system of the tub body to the back wall to allow the use of thinner sheets for its construction, without jeopardizing the component parts resistance to the mechanical stress and the watertightness.
- an object of the invention is to provide a reinforced tub easily, and therefore economically, produced from an industrial point of view.
- a further object of the invention is to provide a reinforced tub having a long life and reliable fastening system between the tub body and the back wall, in terms of watertightness and mechanical resistance.
- a reinforced tub particularly for laundry washing machines, comprising a back wall associated with a tub body, said tub body having a substantially cylindrical shape and comprising a bottom edge, characterized in that it comprises a further stiffening edge rigidly associated with said bottom edge.
- the tub generally designated by the reference numeral 1 and adapted to contain a drum 14, comprises a tub body 2 and a back wall 3.
- the tub body generally has a cylindrical shape and is formed from a flat sheet 2a, illustrated in Fig. 3, bent and joined along the edges 2b, as illustrated in Fig. 4.
- the back wall 3 is fastened to the tub body bottom edge 4 which is conveniently bent to have a radial portion 5 adapted to cooperate with a similar radial portion 6 formed on the periphery of the back wall 3.
- a gasket 7 is first interposed between the bottom edge 4 of the tub body 2 and the portion 6 of the back wall 3, and subsequently a fastening ring 8 is applied to fasten the back wall to the tub body.
- the bottom edge 4 of the tub body is reinforced by means of a stiffening edge 9.
- Figs. 5-7 show some of the possible shapes of the stiffening edge which may extend either almost exclusively within the radial portion 5 (the edge 4a of Fig.5), or beyond the radial portion 5 covering part of the tub body (edges 4b and 4c of Figs. 6 and 7).
- the stiffening edge 9 is advantageously provided by bending the sheet 2a when it is still flat (Fig. 3), before the shaping operations, and optionally by welding it in order to ease the subsequent workings.
- the edge 9 can also be provided by simply welding a sheet metal to the radial portion 5, without bending the bottom edge 4 of the tub.
- An advantage of the invention is also due to the easy shaping operations for manufacturing the tub, and particularly for forming the stiffening edge, that do not further complicate the production cycle.
- the reinforced tub according to the invention may have numerous modifications and variations, all within the inventive concept; furthermore, all the details may be substituted with technically equivalent elements.
- the materials employed, as well as the dimensions, may be any according to the specific needs and the state of the art.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8921025A IT1230168B (it) | 1989-06-29 | 1989-06-29 | Vasca rinforzata, particolarmente per macchine lavabiancheria. |
IT2102589 | 1989-06-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0405068A1 true EP0405068A1 (de) | 1991-01-02 |
EP0405068B1 EP0405068B1 (de) | 1994-06-22 |
Family
ID=11175578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90106471A Expired - Lifetime EP0405068B1 (de) | 1989-06-29 | 1990-04-04 | Verstärkter Laugenbehälter, insbesondere für Waschmaschinen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0405068B1 (de) |
DE (1) | DE69010088T2 (de) |
ES (1) | ES2055206T3 (de) |
IT (1) | IT1230168B (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1498536A2 (de) * | 2003-07-08 | 2005-01-19 | LG Electronics Inc. | Trommelwaschmaschine |
US7533548B2 (en) | 2002-12-27 | 2009-05-19 | Lg Electronics Inc. | Drum type washing machine |
US7568366B2 (en) | 2004-07-20 | 2009-08-04 | Lg Electronics Inc. | Drum-type washing machine and bearing housing structure thereof |
KR100987434B1 (ko) | 2003-07-08 | 2010-10-13 | 엘지전자 주식회사 | 드럼세탁기용 터브 |
DE102021205433A1 (de) | 2021-05-28 | 2022-12-01 | BSH Hausgeräte GmbH | Laugenbehälter mit spezifischem Verbindungsbereich zwischen einem Hohlzylinder und einer Rückwand, sowie Haushaltsgerät |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2314749A3 (de) | 2002-12-27 | 2013-01-09 | LG Electronics Inc. | Trommelwaschmaschine |
ES2296424B1 (es) * | 2004-02-06 | 2008-12-16 | Bsh Electrodomesticos España S.A. | Refuerzo para tambor de maquina lavadora. |
KR100651853B1 (ko) | 2005-09-30 | 2006-12-01 | 엘지전자 주식회사 | 인서트사출형 베어링하우징조립체 및 이를 구비한캐비넷/터브 일체형 드럼세탁기 |
US7841220B2 (en) | 2005-09-30 | 2010-11-30 | Lg Electronics Inc. | Drum-type washing machine |
US7536882B2 (en) | 2006-03-29 | 2009-05-26 | Lg Electronics Inc. | Drum type washing machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2633604A1 (de) * | 1976-07-27 | 1978-02-02 | Licentia Gmbh | Trommelbehaelter fuer eine stirnbeschickbare waschmaschine |
EP0132805A2 (de) * | 1983-07-29 | 1985-02-13 | INDUSTRIE ZANUSSI S.p.A. | Laugenbehälter aus rostfreiem Stahl für Waschmaschine |
-
1989
- 1989-06-29 IT IT8921025A patent/IT1230168B/it active
-
1990
- 1990-04-04 DE DE69010088T patent/DE69010088T2/de not_active Expired - Fee Related
- 1990-04-04 EP EP90106471A patent/EP0405068B1/de not_active Expired - Lifetime
- 1990-04-04 ES ES90106471T patent/ES2055206T3/es not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2633604A1 (de) * | 1976-07-27 | 1978-02-02 | Licentia Gmbh | Trommelbehaelter fuer eine stirnbeschickbare waschmaschine |
EP0132805A2 (de) * | 1983-07-29 | 1985-02-13 | INDUSTRIE ZANUSSI S.p.A. | Laugenbehälter aus rostfreiem Stahl für Waschmaschine |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7930910B2 (en) | 2002-12-27 | 2011-04-26 | Lg Electronics Inc. | Drum type washing machine |
US7571625B2 (en) | 2002-12-27 | 2009-08-11 | Lg Electronics Inc. | Drum type washing machine |
US8646292B2 (en) | 2002-12-27 | 2014-02-11 | Lg Electronics Inc. | Drum type washing machine |
US8616027B2 (en) | 2002-12-27 | 2013-12-31 | Lg Electronics Inc. | Drum type washing machine |
US7533548B2 (en) | 2002-12-27 | 2009-05-19 | Lg Electronics Inc. | Drum type washing machine |
US8156770B2 (en) | 2002-12-27 | 2012-04-17 | Lg Electronics, Inc. | Drum type washing machine |
JP2005028145A (ja) * | 2003-07-08 | 2005-02-03 | Lg Electronics Inc | ドラム式洗濯機 |
US7743480B2 (en) | 2003-07-08 | 2010-06-29 | Lg Electronics Inc. | Method of manufacturing a drum-type washing machine |
EP1498536A2 (de) * | 2003-07-08 | 2005-01-19 | LG Electronics Inc. | Trommelwaschmaschine |
KR100987434B1 (ko) | 2003-07-08 | 2010-10-13 | 엘지전자 주식회사 | 드럼세탁기용 터브 |
US7451626B2 (en) | 2003-07-08 | 2008-11-18 | Lg Electronics Inc. | Drum-type washing machine |
EP1498536A3 (de) * | 2003-07-08 | 2006-10-04 | LG Electronics Inc. | Trommelwaschmaschine |
US7568366B2 (en) | 2004-07-20 | 2009-08-04 | Lg Electronics Inc. | Drum-type washing machine and bearing housing structure thereof |
DE102021205433A1 (de) | 2021-05-28 | 2022-12-01 | BSH Hausgeräte GmbH | Laugenbehälter mit spezifischem Verbindungsbereich zwischen einem Hohlzylinder und einer Rückwand, sowie Haushaltsgerät |
Also Published As
Publication number | Publication date |
---|---|
DE69010088T2 (de) | 1995-03-02 |
IT8921025A0 (it) | 1989-06-29 |
IT1230168B (it) | 1991-10-14 |
EP0405068B1 (de) | 1994-06-22 |
DE69010088D1 (de) | 1994-07-28 |
ES2055206T3 (es) | 1994-08-16 |
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