EP0198554B1 - Behälter mit Lagerbuchse die mittels durchgehender Ausbildungen von Polymer für technische Anwendung fest damit verbunden ist, für Waschmaschinen mit horizontaler Achse - Google Patents

Behälter mit Lagerbuchse die mittels durchgehender Ausbildungen von Polymer für technische Anwendung fest damit verbunden ist, für Waschmaschinen mit horizontaler Achse Download PDF

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Publication number
EP0198554B1
EP0198554B1 EP86200619A EP86200619A EP0198554B1 EP 0198554 B1 EP0198554 B1 EP 0198554B1 EP 86200619 A EP86200619 A EP 86200619A EP 86200619 A EP86200619 A EP 86200619A EP 0198554 B1 EP0198554 B1 EP 0198554B1
Authority
EP
European Patent Office
Prior art keywords
tub
engineering polymer
drum
tubular member
horizontal axis
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.)
Expired
Application number
EP86200619A
Other languages
English (en)
French (fr)
Other versions
EP0198554A3 (en
EP0198554A2 (de
Inventor
Sergio Rabuffetti
Silvano Maretti
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.)
Whirlpool International BV
Original Assignee
Whirlpool International BV
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 Whirlpool International BV filed Critical Whirlpool International BV
Publication of EP0198554A2 publication Critical patent/EP0198554A2/de
Publication of EP0198554A3 publication Critical patent/EP0198554A3/en
Application granted granted Critical
Publication of EP0198554B1 publication Critical patent/EP0198554B1/de
Expired legal-status Critical Current

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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
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/269—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for the bearing of the rotary receptacle
    • 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

Definitions

  • This invention relates to a tub for a laundry washing machine with a drum of horizontal axis, the tub being entirely or partly of engineering polymer (filled or non-filled) and provided with a hub comprising a metal tubular member in which the drum shaft is rotatably supported (see EP-A-43429).
  • the rotational movement of the drum which holds the laundry and is disposed in the tub which is designed to contain the wash liquid but does not participate in the drum rotation, is effected by providing in the rear part of the tub a hub which is generally welded to it and is machined to form seats for bearings supporting a shaft which at one end is connected to the drum and at the other, external to the tub, is connected to an electric motor by way of a pulley and a transmission belt.
  • the hub can be of steel when the tub is of enamelled sheet steel or stainless steel.
  • the tub is entirely or partly constructed of a filled or non-filled engineering polymer.
  • the hub is of die-cast aluminium which is machined at its ends to form the seats and abutments for the bearings which support the drum shaft. This hub is inserted into a mould in which it is covered by the engineering polymer which, in the same mould, forms either the rear wall of the tub or the entire tub.
  • the main object of the present invention is to provide a tub entirely or partly of engineering polymer (filled or non-filled) which allows a more economical construction and in which the hub is reliably and securely bonded to the engineering polymer so as to exclude any relative movement.
  • a tub entirely or partly of engineering polymer characterised essentially in that its hub comprises a tubular member peripherally containing through holes occupied by the engineering polymer which, on the inside of the tubular member, forms abutments for the rolling bearings inserted into said member.
  • the reference numeral 1 indicates a laundry washing machine tub in which there is disposed a conventional laundry drum, not shown, connected to the end of a shaft, also not shown, which is supported in bearings 2, 3 mounted in a hub 4.
  • the hub is provided in the rear wall 5 of the tub. Either the entire tub or only the rear wall 5 is of thermoplastic engineering polymer, which can be filled for example with glass fibre, or unfilled.
  • the hub 4 comprises a metal tubular member 6 provided with a series of radial through holes 7 preferably distributed equidistantly along the perimeter of said tubular member 6.
  • the tubular member is covered externally by a sleeve 9 of the same engineering polymer which forms the rear wall 5.
  • the through holes 7 are occupied by the engineering polymer, which also extends on to the inner side of the tubular member 6 to form a ring 8 adhering to said inner side.
  • the ends 8a, 8b of the inner ring constitute a correct abutment for the bearings 2, 3 without the need for any machining subsequent to the injection moulding of the rear wall 5 or tub 1.
  • the metal member 6 can be formed from an extruded aluminium tube by cutting it to the required length and providing it with the holes 7 (for example four in number).
  • the member in question is inserted into a suitable mould associated with an injection machine for the engineering polymer.
  • the engineering polymer injected into the mould forms the rear wall 5 or the entire tub 1, and also the sleeve 9, and occupies the holes 7 to form either the ring 8 or the circular sectors 8c comprising the abutment surfaces 8a, 8b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Claims (3)

1. Waschmaschinenbottich mit einer Trommel mit einer horizontalen Achse, wobei dieser Bottich Völlig oder teilweise aus technischem polymer (ggf faserverstärkt) besteht und mit einer Nabe mit einem metallischen rohrförmigen Teil Versehen ist, in dem die Trommelachse gelagert ist, dadurch gekennzeichnet, daß das metallische rohrförmige Teil (6) am Umfang hindurchgehende Löcher (7) aufweist, die durch das technische polymer gefüllt sind, das auf der Innenseite des metallischen rohrförmigen Teils (6) Anschläge (8a, 8b) für Rollenlager (2, 3) bildet, die in dem genannten rohrförmigen Teil angeordnet sind.
2. Bottich nach Anspruch 1, dadurch gekennzeichnet, daß die Anschläge (8a, 8b) die Endflächen eines Ringes (8) oder Von Sektoren (8c) aus technischem Polymer auf der Innenseite des rohrförmigen Teils (6) bilden.
3. Bottich nach Anspruch 1, dadurch gekennzeichnet, daß die Außenseite des metallischen rohrförmigen Teils (6) wenigstens teilweise durch technisches polymer bedeckt ist.
EP86200619A 1985-04-17 1986-04-14 Behälter mit Lagerbuchse die mittels durchgehender Ausbildungen von Polymer für technische Anwendung fest damit verbunden ist, für Waschmaschinen mit horizontaler Achse Expired EP0198554B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8521531U IT8521531V0 (it) 1985-04-17 1985-04-17 Vasca con mozzo tubolare solidarizzato attraverso formazioni passanti di tecnopolimero, per lavabiancheria con cestello ad asse orizzontale.
IT2153185U 1985-04-17

Publications (3)

Publication Number Publication Date
EP0198554A2 EP0198554A2 (de) 1986-10-22
EP0198554A3 EP0198554A3 (en) 1988-01-07
EP0198554B1 true EP0198554B1 (de) 1991-01-09

Family

ID=11183189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86200619A Expired EP0198554B1 (de) 1985-04-17 1986-04-14 Behälter mit Lagerbuchse die mittels durchgehender Ausbildungen von Polymer für technische Anwendung fest damit verbunden ist, für Waschmaschinen mit horizontaler Achse

Country Status (4)

Country Link
EP (1) EP0198554B1 (de)
DE (1) DE3676732D1 (de)
ES (1) ES8705059A1 (de)
IT (1) IT8521531V0 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8677788B2 (en) 1999-10-18 2014-03-25 Lg Electronics Inc. Method of forming a drum type washing machine having a driving unit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2102972B1 (es) * 1996-01-31 1998-04-01 Balay Sa Cuba de plastico perfeccionada para lavadora.
JP4554215B2 (ja) * 2002-03-26 2010-09-29 アルチュリク・アノニム・シルケチ ドラム
EP2083108A1 (de) 2008-01-28 2009-07-29 Whirpool Corporation Verfahren zur Herstellung eines Metalldrehtellers für eine Waschmaschine und in einem solchen Verfahren gewonnener Drehteller

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1417919A (fr) * 1964-12-21 1965-11-12 Palier notamment pour axe de tambour de machine à laver ou autre application
IT1136452B (it) * 1980-07-03 1986-08-27 Zanussi A Spa Industrie Vasca in materia plastica per macchine lavabiancheria

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8677788B2 (en) 1999-10-18 2014-03-25 Lg Electronics Inc. Method of forming a drum type washing machine having a driving unit

Also Published As

Publication number Publication date
EP0198554A3 (en) 1988-01-07
IT8521531V0 (it) 1985-04-17
DE3676732D1 (de) 1991-02-14
ES8705059A1 (es) 1987-04-16
EP0198554A2 (de) 1986-10-22
ES553958A0 (es) 1987-04-16

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