EP1885932B1 - Wäschetrommel für eine wäschebehandlungsmaschine - Google Patents

Wäschetrommel für eine wäschebehandlungsmaschine Download PDF

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Publication number
EP1885932B1
EP1885932B1 EP06724862A EP06724862A EP1885932B1 EP 1885932 B1 EP1885932 B1 EP 1885932B1 EP 06724862 A EP06724862 A EP 06724862A EP 06724862 A EP06724862 A EP 06724862A EP 1885932 B1 EP1885932 B1 EP 1885932B1
Authority
EP
European Patent Office
Prior art keywords
edge
stampings
laundry drum
seam
connection
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.)
Active
Application number
EP06724862A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1885932A2 (de
Inventor
Alfred Nitsche
Axel Heubner
Wilfried Wildung
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1885932A2 publication Critical patent/EP1885932A2/de
Application granted granted Critical
Publication of EP1885932B1 publication Critical patent/EP1885932B1/de
Active 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • 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
    • D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
    • 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
    • Y10T29/496—Multiperforated metal article making

Definitions

  • the invention relates to a laundry drum for a laundry treatment machine with a shell of a finite metal strip, which is wound into a cylinder jacket and the end sides are connected together in a seam and the longitudinal sides are connected to the periphery of the bottom plate and the frontal disc by a flanged seam, with provided transverse embossments. Furthermore, the invention also relates to a tool and a method for processing an aforementioned laundry drum.
  • drums of the aforementioned type have been performed, in which the embossments are arranged evenly distributed on the circumference of the flanged seam to make the flanged seam against opening more durable.
  • This task can solve the well-known flanged seam satisfactorily.
  • this way of increasing the strength of the hemming seam has no effect on the durability of the connection of drivers, which are integrally drawn from the drum shell and connected to the bottom plate and the front disc of the laundry drum.
  • the invention is therefore based on the object to be taken at a laundry drum measures described above, that when the cover plate integrally threaded driver are provided, the flanged seam is also sufficiently durable, so that at higher spin speeds of the laundry drum, the jacket sheet not from the compound with the bottom disc dissolves.
  • this object is achieved by a laundry drum, in which according to the characterizing part of claim 1 from the metal strip inwardly drawn driver are connected to at least one of the bottom discs incisions or openings are connected by a fold and that the embossments of the flanged seam in the area immediately are mounted next to the connection of the driver with the bottom discs.
  • the metal strip of the jacket - also called jacket plate - so securely connected to the respective bottom plate due to good form and frictional engagement between the jacket plate and the respective bottom plate in the circumferential direction and in the radial direction, that this strength also affects the stability of the driver, the thus becomes less vulnerable, at higher spin speeds because of the Mantelzuger that occur due to the high centrifugal forces during spinning along the circumference of the laundry drum, so along the jacket plate, to deform.
  • the largest density of imprints in this neighborhood is advantageous, which is achieved primarily by in that the center distances increase with the removal of the embossing from the connection of the driver with the bottom disk (claim 5).
  • the center distance between the embossments on each side of the driver in the range between 13 and 22 mm (claim 7). It is also advantageous if the deepest edge of the embossments is a straight line which has a sloping from the drum shell to the bottom disc inclination with respect to the generating line (claim 8). As a result, another vector of the forces resisting opposing forces is introduced so that, despite the elasticity of the flanged seam, none of the intertwined sheet edges can work itself out of the connection.
  • the inclination of the deepest edge of the embossments has an angle of at least approximately 15 ° (claim 9). It will be using of sheet thicknesses of about 0.6 mm for the depth of the lowest edge opposite the highest elevation of the outer edge of the embossments on the end facing the drum shell at least approximately 0.5 mm and at the end facing away from the drum shell at least approximately 3 mm.
  • the advantage here is that the relatively large embossing depth without visible deformation of the jacket plate and the sheet of the bottom plate or the frontal disc is vonstatten.
  • a laundry drum according to the invention can best be made in a tool (claim 11), when the preformed laundry drum is placed on a table for processing and on the processing side of the laundry drum substantially radially on the hemming seam to movable punch for imprinting imprints in the Flanged seam are arranged.
  • the punches are arranged in groups, of which the one or the middle punches or an imaginary line of symmetry between two punches are aligned with the center of the associated base plate (claim 12). Then several stamps can be controlled together economically. The small deviation of the direction of impact from the radial direction is acceptable.
  • a die is attached to the flanging seam in the tool of the stamping station.
  • the laundry drum is advantageously inserted into a tool in such a way that the area of the hemming seam to be processed is positioned in front of a stamping station, that the imprints are formed by one stroke of each be set outside on the hemming seam using a punch and that the laundry drum after each punch hit by such a Further rotated angle that the embossments of the hemming seam are mounted in the area immediately adjacent to the connection of the driver with the bottom discs in a pre-calculated distance from each other (claim 16).
  • a tool according to any one of claims 11 to 15 is used for the inventive method for processing a laundry drum according to one of claims 1 to 10 (claim 17).
  • a laundry drum 1 hides her coat (12 in 3 and 4 ) and the congruent face disc provided in a front loading washing machine with a circular coaxial opening for loading laundry.
  • a supporting star 3 is mounted so that the ends of its arms 4 are fastened via holes 5 and not shown screws in height of the driver with the bottom plate 2.
  • Fig. 1 also shows a bead seam 6 enclosing the edge of the bottom disk 2, which seams parallel to the surface line 15 (FIG. Fig. 3 ) and by the explained in further below Way the bottom plate 2 is connected to the jacket plate 12 of the laundry drum 1.
  • this flanged seam 6 is provided with embossments 7, nine each at a uniform distance from each other.
  • the embossments 7 are represented by the sectional view in FIG Fig. 3 clarified. It can be seen that the edges of the bottom plate 2 and the jacket plate 12 are rolled in a hemming seam 6, which is at the location of the embossment 7 in sections in the direction of the center 13 of the bottom plate 2 is pulled deep.
  • the deepest line 14 with the surface line 15 forms an angle ⁇ , of about 15 °, whereby on the shell side of the embossment 7, the lowest line 14 only by a minimum depth a ⁇ 0.5 mm and on the bottom disc side to a maximum depth A ⁇ 3 mm relative to the outer circumferential line 16 of the hemming seam 6 is lowered.
  • the hemming seam 6 is embossed within the embossment 7 about a crease line 17 from the parallel with the surface line 15 downward alignment, so that the lowest line 14 at the level of the crease line 17 at the same height with the outer peripheral line 16 of the hemming 6 ends.
  • the lowest line 14 on the bottom of the floor reaches only a maximum depth A ' ⁇ 2.5 mm at the same angle ⁇ ⁇ 15 °.
  • This is according to the imprint according to Fig. 3 another vector of the opposing forces resisting the forces introduced into the embossment 7, because within the intertwined sheet metal edges by the crease line 17, a further fastening component is incorporated into the flanged seam 6.
  • Fig. 5 the view of the hemming seam 6 in the amount of two embossments 7 according to the detail V of Fig. 1 to recognize.
  • the center distance M of the two embossments 7 to each other is shown here as slightly smaller than twice the width B of an embossment 7, and may be between about 13 and about 22 mm. But he can also be equal to the width B or go beyond. However, too large a center distance M is detrimental to the strength of the hemming seam and the size of the transferable from the carrier star on the drum forces.
  • Such a laundry drum - before entering the in Fig. 6 is already finished and suitable for use in washing machines, which are designed for spin speeds of a maximum of about 1000 U / min.
  • the flanged seam 6 described requires no embossing. Only laundry drums 1, which are designed in washing machines for higher speeds, should experience at least in the area of the connection 8 of the driver 9 with the bottom plates 2 gain by the inventive arrangement of the embossments 7. Serves for such a tool as in Fig. 6 ,
  • a multi-part receiving device 20 is attached for placing and tightening the laundry drum 1.
  • Each driver 9 is associated with a stamping station 21, the punch 22 are mounted movably in the direction of the center 13 of the bottom plate 2 and the coaxial center axis of the laundry drum 1.
  • two punches 22 and each punch 22 according to Fig. 7 arranged with nine embossing profiles 23, each of which is intended for the production of an embossment 7.
  • each stamp for example, only four embossments 7, whose distances from each other on each side of the hemming seam are so large that each additional embossing fits between them. Then, the laundry drum 1 is rotated so far after a punch stroke in the double arrow direction on the table 19 that exactly between the pairs of coins 7 on each side four further embossments 7 are made. As a result, 8 eight embossments 7 have arisen with two strokes on each side of the connections.
  • Fig. 8 illustrated example of a tool whose basic structure of the Fig. 6 is very similar, is only a stamp station 21 - possibly representative for each a stamp station at each driver connection 8 - shown on the tool table 19.
  • the laundry drum 1 is then to be rotated on or with a part of the table 19 at such an angle as indicated by arrow 24, that the respective other area next to the driver connection 8 is positioned in the stamping station 21.
  • the laundry drum 1 therefore has to comply with six rotational positions until all embossing groups are beaten. In the arrangement of one stamp station per connection 8 only two rotational positions are to be observed.
  • each punches can also be equipped with only one embossing profile 23. Then each stamp can be performed exactly in the radial direction; However, then because of the narrowness on the tool table 19, the number of punches must be limited so that the laundry drum 1 is further rotated for embossing all imprints 7 more often than once per group of coins 7 and that per group of imprints around the driver around several strokes in Double arrow direction must be done.
  • the described processing of the laundry drum 1 can be done simultaneously with such a tool on each bottom plate 2 individually or on the front bottom plate and on the rear bottom plate.
  • corresponding punch arrangements must of course be arranged in two levels of the same tool.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sewing Machines And Sewing (AREA)
EP06724862A 2005-05-20 2006-02-22 Wäschetrommel für eine wäschebehandlungsmaschine Active EP1885932B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005023444A DE102005023444A1 (de) 2005-05-20 2005-05-20 Trommel mit Prägung der Bördelnaht
PCT/EP2006/060180 WO2006122839A2 (de) 2005-05-20 2006-02-22 Wäschetrommel für eine wäschebehandlungsmaschine

Publications (2)

Publication Number Publication Date
EP1885932A2 EP1885932A2 (de) 2008-02-13
EP1885932B1 true EP1885932B1 (de) 2009-01-28

Family

ID=36295574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06724862A Active EP1885932B1 (de) 2005-05-20 2006-02-22 Wäschetrommel für eine wäschebehandlungsmaschine

Country Status (7)

Country Link
US (1) US8011210B2 (ru)
EP (1) EP1885932B1 (ru)
CN (1) CN101194063B (ru)
AT (1) ATE422003T1 (ru)
DE (2) DE102005023444A1 (ru)
EA (1) EA010761B1 (ru)
WO (1) WO2006122839A2 (ru)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1922444A1 (en) * 2005-08-22 2008-05-21 Arcelik Anonim Sirketi A washer/dryer with a seam formed by bending the overlapping edges of the drum body and two circular lids
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.
DE102008040539A1 (de) * 2008-07-18 2010-01-21 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Wäschebehandlungsmaschine
US8887540B2 (en) 2010-07-28 2014-11-18 Bsh Bosch Und Siemens Hausgeraete Gmbh Laundry drum for a laundry treatment machine
TR201101157A2 (tr) * 2011-02-08 2012-08-22 Bsh Ev Aletleri̇ San. Ve Ti̇c. A.Ş. Tambur tipi önden yüklemeli bir çamaşır makinesi
DE102013204987A1 (de) * 2013-03-21 2014-09-25 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Trommelwaschmaschine
USD739103S1 (en) * 2013-03-25 2015-09-15 Haier Group Corporation Pulsator for washing machine
DE102013221288A1 (de) 2013-10-21 2015-04-23 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Herstellen einer Anordnung für ein Haushaltsgerät, Anordnung und Haushaltsgerät zur Pflege von Wäschestücken
USD829397S1 (en) * 2015-12-30 2018-09-25 Lg Electronics Inc. Pulsator for washing machine
USD814128S1 (en) * 2016-02-15 2018-03-27 Lg Electronics Inc. Washing machine
CN106436134A (zh) * 2016-11-02 2017-02-22 珠海格力电器股份有限公司 洗衣机
USD862016S1 (en) 2016-11-29 2019-10-01 Samsung Electronics Co., Ltd. Pulsator for washing machine

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US1728667A (en) * 1929-09-17 Arthur r
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US1951470A (en) * 1932-10-29 1934-03-20 Arthur T Cole Crimping and sealing edge for light gauge sheet materials
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Also Published As

Publication number Publication date
US8011210B2 (en) 2011-09-06
US20090183531A1 (en) 2009-07-23
EA200702250A1 (ru) 2008-04-28
EA010761B1 (ru) 2008-10-30
WO2006122839A3 (de) 2007-04-26
CN101194063B (zh) 2010-11-03
ATE422003T1 (de) 2009-02-15
WO2006122839A2 (de) 2006-11-23
CN101194063A (zh) 2008-06-04
DE102005023444A1 (de) 2006-11-23
DE502006002753D1 (de) 2009-03-19
EP1885932A2 (de) 2008-02-13

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