EP2032756A1 - Waschmaschine für den haushalt mit verbessertem bottich - Google Patents

Waschmaschine für den haushalt mit verbessertem bottich

Info

Publication number
EP2032756A1
EP2032756A1 EP07725512A EP07725512A EP2032756A1 EP 2032756 A1 EP2032756 A1 EP 2032756A1 EP 07725512 A EP07725512 A EP 07725512A EP 07725512 A EP07725512 A EP 07725512A EP 2032756 A1 EP2032756 A1 EP 2032756A1
Authority
EP
European Patent Office
Prior art keywords
tub
resistor
hole
machine according
opposite
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
EP07725512A
Other languages
English (en)
French (fr)
Other versions
EP2032756B1 (de
Inventor
Fabio Zanello
Edy Raffin
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to PL07725512T priority Critical patent/PL2032756T3/pl
Publication of EP2032756A1 publication Critical patent/EP2032756A1/de
Application granted granted Critical
Publication of EP2032756B1 publication Critical patent/EP2032756B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating 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
    • 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
    • D06F37/262—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding
    • 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
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups

Definitions

  • the invention relates to an improved type of washing machine with front or top loading, but with a horizontal or inclined axis, preferably of the domestic type, having a washing tub provided with a resistor for heating the washing bath, which may be assembled by means of a solely rectilinear movement parallel to the axis of the tub.
  • the resistor assembly operation at present must be performed in a completely manual manner, since it is required to gain access inside the tub before completion thereof, namely with the associated half-shells still separated, in order to perform the necessary operations for positioning and fixing the resistor against at least one of said half-shells; typically the end result of assembly of the resistor inside the tub can be seen in the patent EP 0344549 (Fig. 2).
  • the patent EP 0,352,499 discloses arranging inside the tub of a washing machine a shaped plate on which a heating resistor formed as a thick film is deposited; this solution, however, does not solve the problem of automatability of the assembly method and, moreover, said resistor generally is not able to withstand for long periods the highly abrasive environment inside the washing tub - due to the temperature - of the moving liquid and detergent.
  • Figures 4, 5 and 6 show, respectively, a partially transparent perspective view, cross-sectional view in a plane perpendicular to the axis and cross-sectional view in a plane passing along the axis of a second embodiment of a tub according to the invention.
  • Fig. 7 shows in a symbolic and schematic manner an improved embodiment of a heating resistor inside a tub according to the invention.
  • a washing machine according to the invention comprises an approximately cylindrical tub 1 with the horizontal axis "X" and provided with a front opening 2 formed in one of the flat vertical walls 3 which form the two bases of the tub cylinder.
  • a heating resistor 20 with an elongated form is arranged on the bottom inner portion of the volume of the tub and in the vicinity of the bottom 4 of the latter; said resistor is formed in a conventional manner, i.e. with shape in the form of a very long U, so that one of its ends 5 reaches substantially a vertical wall 3, while the other end extends towards the opposite wall 8, without however touching it; for the sake of convenience of the description, in the remainder of the present document, the term “end 9" will be used and written also as "terminal portion 9".
  • One of said ends 5 is engaged with one of said walls 3 via an engaging means 6 of a type known per se, provided so as to close a respective hole 7 arranged in said wall 3.
  • a retaining part able to fix the opposite end 9 of said resistor is arranged on the opposite wall 8; according to Figs. 1 and 2 said retaining part is formed as a parallelepiped 10 fixed with only one side on the zone of said wall 8 which faces said hole 7; said part 10 has, on its outer wall 8 directed towards said hole 7, a recessed portion 13.
  • an engaging device 16 able to fit inside said recessed portion 13 is mounted on said opposite end 9 of the resistor 20.
  • said device 16 is formed by a small spring or in any case by a resilient element such that, when it is inserted also with great precision towards said recessed portion 13, it is self-positioned inside the latter, while remaining fixed to said end 9.
  • a second embodiment consists in mounting, on said opposite side 8, a flat bracket 11 in the form of a small metal flange having a laterally open incision 22 formed in its outer edge 21.
  • Said flat bracket 11 is fixed onto the bottom of the tub so that the plane in which it extends is arranged vertically and passes along the axis "X" and said incision 22 is situated symmetrically opposite said engaging means 6 on the opposite wall 3 of the tub.
  • the resistor 20 after it has been properly assembled, extends inside the tub and towards the opposite wall 8 with a length such that its U-curved end 9 fits precisely into said incision 22, being retained therein.
  • the geometry and the relative dimensions of the parts described must be such as to achieve the object and also the teaching of the invention whereby assembly of the resistor, or replacement thereof, may be performed without it being necessary to open the half-shells or the different parts forming the tub, but simply by means of a rectilinear movement parallel to said axis "X" of said resistor and said engaging, support and closing means 6 so as to obtain the two main advantages of the invention, described above and for the sake of brevity not repeated here.
  • this second embodiment of the invention may pose a problem if the tub, and also said flat bracket 11 , are made of thermoplastic material.
  • the U-shaped terminal portion 9 of said resistor is constructed so that it has parts with a very low specific resistivity in said terminal portion 9; basically the resistive elements 30 are arranged only along the extension of the resistor defined by the length "S" in Fig. 7, while the U- shaped terminal portion 9 has a very low resistivity conductor 31 passing through it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Detergent Compositions (AREA)
  • Soil Working Implements (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)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Treatment Of Fiber Materials (AREA)
EP07725512A 2006-06-28 2007-05-24 Waschmaschine für den haushalt mit verbessertem bottich Not-in-force EP2032756B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07725512T PL2032756T3 (pl) 2006-06-28 2007-05-24 Pralka domowa z ulepszoną komorą

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000026U ITPN20060026U1 (it) 2006-06-28 2006-06-28 Lavabiancheria domestica con vasca perfezionata
PCT/EP2007/004612 WO2008000323A1 (en) 2006-06-28 2007-05-24 Domestic washing machine with improved tub

Publications (2)

Publication Number Publication Date
EP2032756A1 true EP2032756A1 (de) 2009-03-11
EP2032756B1 EP2032756B1 (de) 2011-04-27

Family

ID=38328274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07725512A Not-in-force EP2032756B1 (de) 2006-06-28 2007-05-24 Waschmaschine für den haushalt mit verbessertem bottich

Country Status (7)

Country Link
EP (1) EP2032756B1 (de)
AT (1) ATE507341T1 (de)
DE (1) DE602007014208D1 (de)
ES (1) ES2362540T3 (de)
IT (1) ITPN20060026U1 (de)
PL (1) PL2032756T3 (de)
WO (1) WO2008000323A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8034028V0 (it) * 1980-07-11 1980-07-11 Zanussi A Spa Industrie Macchina lavabiancheria provvista di elementi elettrici di riscaldamento.
DE4112230C2 (de) * 1991-04-15 1995-05-24 Miele & Cie Befestigungseinrichtung für den Heizkörper einer Waschmaschine
DE19749958B4 (de) * 1997-11-03 2004-04-15 Miele & Cie. Kg Waschmaschine mit einem Rohrheizkörper
DE19844568C1 (de) * 1998-09-29 1999-10-21 Miele & Cie Befestigungsvorrichtung für elektrische Rohrkörper von Trommelwaschmaschinen
US20050279141A1 (en) * 2004-06-21 2005-12-22 Lg Electronics Inc. Heater assembly for washing machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008000323A1 *

Also Published As

Publication number Publication date
PL2032756T3 (pl) 2011-09-30
ES2362540T3 (es) 2011-07-07
DE602007014208D1 (de) 2011-06-09
EP2032756B1 (de) 2011-04-27
ATE507341T1 (de) 2011-05-15
WO2008000323A1 (en) 2008-01-03
ITPN20060026U1 (it) 2007-12-29

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