EP1520067A1 - Waschmaschinentrommel - Google Patents
WaschmaschinentrommelInfo
- Publication number
- EP1520067A1 EP1520067A1 EP03762523A EP03762523A EP1520067A1 EP 1520067 A1 EP1520067 A1 EP 1520067A1 EP 03762523 A EP03762523 A EP 03762523A EP 03762523 A EP03762523 A EP 03762523A EP 1520067 A1 EP1520067 A1 EP 1520067A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fold
- washing machine
- machine drum
- sheet metal
- cylindrical wall
- 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
- 238000005406 washing Methods 0.000 title claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000004049 embossing Methods 0.000 claims description 9
- 238000009987 spinning Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
-
- 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
- D06F37/02—Rotary receptacles, e.g. drums
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49909—Securing cup or tube between axially extending concentric annuli
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49915—Overedge assembling of seated part
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49915—Overedge assembling of seated part
- Y10T29/49917—Overedge assembling of seated part by necking in cup or tube wall
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49915—Overedge assembling of seated part
- Y10T29/4992—Overedge assembling of seated part by flaring inserted cup or tube end
Definitions
- the invention relates to a washing machine drum which is formed by a cylindrical wall which contains a plurality of openings and which is connected to two sheet metal layers by means of a fold.
- washing machine drums are formed by a side wall which is provided with a plurality of openings and is connected at its ends to two sheet metal layers by means of a fold which defines a circumferential projection which is formed by a first 180 ° fold of a section of the wall of the first Sheet metal layer around the cylindrical wall and by a second folding of 180 ° of the doubled wall, which after the first folding is formed by the sheet metal layer and the cylindrical wall, around the cylindrical side wall.
- the spin speed of the washing machines is increasing, which means that the drum has to withstand greater loads which can cause a tear in the fold connection of the cylindrical side surface with the sheet metal layers.
- the invention has for its object to provide a reinforcement for the fold, which forms the connection between the sheet metal layers and the cylindrical side wall, so that these connections withstand greater loads than those which are caused when spinning at high speeds. It is also an object of the invention to reinforce the cylindrical side wall to provide it with greater durability as well and with mechanisms that protect the seam joint to enable it to withstand greater loads than those caused by high speed spinning.
- the invention shows a washing machine drum which, like the conventional washing machine drums, is formed by a cylindrical side wall which is provided with a plurality of openings and is connected to a front sheet metal layer and a rear sheet metal layer by means of a circumferential fold at its ends ; and it is characterized in that an embossing is formed along the fold, which affects in a way all the walls of the sheet metal layers that form the fold, so that this structure determines a greater resistance of the fold against the elastications, i It is caused by the action of centrifugal force on the cylindrical wall to reduce the possibility of tearing and / or bending of the fold when the drum rotates at high speeds.
- the embossing is arranged lengthwise on each of the walls that form the fold.
- the embossing is arranged obliquely to the fold, that is to say the different embossments which are carried out on each of the different walls which form the fold are oriented in an oblique direction.
- the drum of the invention also has, as an additional feature, the fact that the cylindrical wall is provided with a plurality of small recesses, so that the surface of the cylindrical wall is enlarged to provide greater durability, which makes it difficult for the cylindrical wall to become rigid bulges when turning at high speeds. However, if such bulging nevertheless occurs, it affects the depressions and not the fold, so that the fold connections have to withstand a lower load and consequently tearing in the fold area is difficult.
- each recess contains one of the flood holes in the drum, but it can be seen that these flood holes can be located outside of the recesses or alternate in any desired configuration.
- depressions have a frustoconical cut according to one embodiment of the invention, but they can also have any other type of cut.
- Fig. 1 is a schematic perspective view of a
- Fig. 2 is a partial view of a body of a conventional drum along the section line in Fig. 1 and
- Fig. 3 is a view along the same section line on a
- the drum of the invention is formed by a cylindrical wall 3 which is connected to a rear support 1 and a front support 2 by means of a fold 5.
- the surface of the cylindrical wall 3 is provided with a plurality of openings 4 for the water inlet and outlet.
- FIG. 2 shows a partial section of the above-described elements according to the prior art, in which it can be seen that the fold 5 by a first folding of 180 ° of a section of the wall of the sheet metal layer 1 or 2 on the cylindrical wall 3 is fixed, so that a second folding of 180 ° of the double wall, which is formed after the first folding, then takes place on the cylindrical wall 3.
- this embodiment has the disadvantage that the tearing of the washing machine drum on the fold connection 5 can be caused when the drum rotates at high speeds. At the same time, an appreciable bulging of the cylindrical wall 3 will occur, whereby the fold ends 5 are subjected to a greater load, which in turn increases the risk of the fold connection tearing.
- the invention contains the novel feature that an embossing is carried out on the fold 5, for example by pressing two embossing pins along the entire fold.
- the embossing is imaged on all sheet metal layers of the walls within the rebate connection, as a result of which the sheet metal layers bond to one another in a form-fitting manner.
- This embossment increases the tensions that the drum can resist when driven at high spin speeds, significantly reducing the likelihood that a crack may occur in the fold connection of the drum.
- recesses 7 with a frustoconical cut are present in the cylindrical wall 3, in the bottom of which the flood holes 4 for the water inflow outflow for carrying out the washing process are contained.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200201643A ES2214104B1 (es) | 2002-07-03 | 2002-07-03 | Tambor de lavadora. |
ES201600043 | 2002-07-03 | ||
PCT/EP2003/006770 WO2004005603A1 (de) | 2002-07-03 | 2003-06-26 | Waschmaschinentrommel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1520067A1 true EP1520067A1 (de) | 2005-04-06 |
EP1520067B1 EP1520067B1 (de) | 2007-03-28 |
Family
ID=30011366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03762523A Expired - Lifetime EP1520067B1 (de) | 2002-07-03 | 2003-06-26 | Waschmaschinentrommel |
Country Status (7)
Country | Link |
---|---|
US (1) | US20050132556A1 (de) |
EP (1) | EP1520067B1 (de) |
AT (1) | ATE358204T1 (de) |
DE (1) | DE50306917D1 (de) |
ES (2) | ES2214104B1 (de) |
PL (1) | PL207797B1 (de) |
WO (1) | WO2004005603A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013045300A1 (en) | 2011-09-27 | 2013-04-04 | Arcelik Anonim Sirketi | A drum and the production method thereof |
WO2015096924A1 (en) | 2013-12-27 | 2015-07-02 | Arcelik Anonim Sirketi | A drum with improved mechanical strength and the production method thereof |
WO2015096926A1 (en) | 2013-12-27 | 2015-07-02 | Arcelik Anonim Sirketi | A drum with improved mechanical strength and the production method thereof |
WO2015101432A1 (en) | 2013-12-30 | 2015-07-09 | Arcelik Anonim Sirketi | A drum with improved mechanical strength and the production method thereof |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1704274A1 (de) * | 2003-11-20 | 2006-09-27 | Arcelik Anonim Sirketi | Trommel mit versteifenden wellungen entlang der naht |
DE102004025354B4 (de) * | 2004-05-19 | 2007-08-30 | Miele & Cie. Kg | Waschmaschinentrommel mit Falzung |
DE102005023444A1 (de) * | 2005-05-20 | 2006-11-23 | BSH Bosch und Siemens Hausgeräte GmbH | Trommel mit Prägung der Bördelnaht |
WO2007023453A1 (en) * | 2005-08-22 | 2007-03-01 | Arcelik Anonim Sirketi | A washer/dryer with a seam formed by bending the overlapping edges of the drum body and two circular lids |
KR101222859B1 (ko) | 2005-09-26 | 2013-01-16 | 삼성전자주식회사 | 드럼세탁기용 회전드럼 및 그 제조방법 |
DE102006010179A1 (de) * | 2005-12-28 | 2007-07-05 | BSH Bosch und Siemens Hausgeräte GmbH | Wäschetrommel |
KR101136863B1 (ko) | 2007-02-28 | 2012-04-20 | 삼성전자주식회사 | 세탁기 |
ES2332440B1 (es) * | 2008-03-03 | 2011-01-31 | Bsh Electrodomesticos España, S.A. | Tambor de lavado para una maquina lavadora y procedimiento para la fabricacion de dicho tambor de lavado. |
IT1394949B1 (it) * | 2009-07-27 | 2012-07-27 | Indesit Co Spa | Macchina per il lavaggio di biancheria a caricamento frontale |
TR201101157A2 (tr) | 2011-02-08 | 2012-08-22 | Bsh Ev Aletleri̇ San. Ve Ti̇c. A.Ş. | Tambur tipi önden yüklemeli bir çamaşır makinesi |
DE102015222611A1 (de) * | 2014-12-03 | 2016-06-09 | Schaeffler Technologies AG & Co. KG | Planetentrieb mit einem Planetenträger |
KR102590137B1 (ko) * | 2016-07-18 | 2023-10-18 | 삼성전자주식회사 | 세탁기 |
US11629448B2 (en) * | 2017-03-13 | 2023-04-18 | Midea Group Co., Ltd. | Laundry washing machine with adjustable wash capacity |
DE102017223582A1 (de) * | 2017-12-21 | 2019-06-27 | BSH Hausgeräte GmbH | Trommel für ein Wäschebehandlungsgerät, Wäschebehandlungsgerät sowie Verfahren zur Herstellung der Trommel |
CN111691114B (zh) * | 2019-03-13 | 2023-02-17 | 青岛海尔洗涤电器有限公司 | 一种滚筒洗衣机的密封排水装置及滚筒洗衣机 |
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-
2002
- 2002-07-03 ES ES200201643A patent/ES2214104B1/es not_active Expired - Fee Related
-
2003
- 2003-06-26 EP EP03762523A patent/EP1520067B1/de not_active Expired - Lifetime
- 2003-06-26 AT AT03762523T patent/ATE358204T1/de not_active IP Right Cessation
- 2003-06-26 PL PL373260A patent/PL207797B1/pl unknown
- 2003-06-26 DE DE50306917T patent/DE50306917D1/de not_active Expired - Lifetime
- 2003-06-26 WO PCT/EP2003/006770 patent/WO2004005603A1/de active IP Right Grant
- 2003-06-26 ES ES03762523T patent/ES2283824T3/es not_active Expired - Lifetime
-
2005
- 2005-01-03 US US11/028,113 patent/US20050132556A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2004005603A1 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013045300A1 (en) | 2011-09-27 | 2013-04-04 | Arcelik Anonim Sirketi | A drum and the production method thereof |
WO2015096924A1 (en) | 2013-12-27 | 2015-07-02 | Arcelik Anonim Sirketi | A drum with improved mechanical strength and the production method thereof |
WO2015096926A1 (en) | 2013-12-27 | 2015-07-02 | Arcelik Anonim Sirketi | A drum with improved mechanical strength and the production method thereof |
WO2015101432A1 (en) | 2013-12-30 | 2015-07-09 | Arcelik Anonim Sirketi | A drum with improved mechanical strength and the production method thereof |
Also Published As
Publication number | Publication date |
---|---|
PL373260A1 (en) | 2005-08-22 |
WO2004005603A1 (de) | 2004-01-15 |
ES2214104B1 (es) | 2005-12-16 |
ATE358204T1 (de) | 2007-04-15 |
ES2214104A1 (es) | 2004-09-01 |
DE50306917D1 (de) | 2007-05-10 |
US20050132556A1 (en) | 2005-06-23 |
PL207797B1 (pl) | 2011-02-28 |
EP1520067B1 (de) | 2007-03-28 |
ES2283824T3 (es) | 2007-11-01 |
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