EP0577037B1 - Frontlader-Trommelwaschmaschine - Google Patents

Frontlader-Trommelwaschmaschine Download PDF

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Publication number
EP0577037B1
EP0577037B1 EP93110256A EP93110256A EP0577037B1 EP 0577037 B1 EP0577037 B1 EP 0577037B1 EP 93110256 A EP93110256 A EP 93110256A EP 93110256 A EP93110256 A EP 93110256A EP 0577037 B1 EP0577037 B1 EP 0577037B1
Authority
EP
European Patent Office
Prior art keywords
bowl
band
housings
ribs
washing
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 - Lifetime
Application number
EP93110256A
Other languages
English (en)
French (fr)
Other versions
EP0577037A1 (de
Inventor
Giovanni Spadoni
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.)
IAR-SILTAL S.P.A.
Original Assignee
IAR-SILTAL SpA
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Filing date
Publication date
Application filed by IAR-SILTAL SpA filed Critical IAR-SILTAL SpA
Publication of EP0577037A1 publication Critical patent/EP0577037A1/de
Application granted granted Critical
Publication of EP0577037B1 publication Critical patent/EP0577037B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • 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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • 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
    • 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
    • D06F37/268—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices

Definitions

  • This invention refers to an improved washing machine. More in detail, this invention refers to a rotatory basket front loaded washing machine.
  • the wash-bowl where the basket is housed is connected to the framework in several points.
  • connection is obtained on the opposite upper and lower fronts of the bowl by means of connecting elements, which may be either springs or dampers and brake-equipped tie-rods. These elements permit the bowl to oscillate during the operation of the machine.
  • the rotation of the basket during the washing and centrifugation stages causes the loss of balance of said basket and, as a consequence, of the bowl to which it is connected.
  • the presence of the connection elements prevents the transmission of the oscillation to the load-bearing structure of the machine and permits to keep the bowl constantly aligned along its ideal oscillation plane.
  • connection of the springs and brake-equipped tie-rods is generally obtained by means of metal supports provided with housings within which the opposite end of the above mentioned elements are housed and tied.
  • the supports are connected by welding to the bowl in the pre-fixed positions; such welding operation requires that the bowl be constituted by plate having an adequate thickness, generally 0.8 mm at least.
  • a rotary basket washing machine including a fastening band is disclosed in documents GB-A-1 155 774, FR-A-1 168 137 and FR-A-1 515 836.
  • Object of this invention is to obviate the above mentioned drawbacks.
  • object of this invention is the realization of an improved washing-machine, wherein the wash-bowl can be connected to the framework of the mashine without requiring the provision of independent metal supports and their welding to the bowl.
  • Still another object of this invention is the realization of a rotatory basket, front-loaded washing-machine in which a support that does not require welding interventions or direct connections to the framework of the machine is provided for the power unit.
  • washing-machine subject matter of this invention which comprises: a cylindrical wash-bowl connected with springs or dampers and brake-equipped tie-rods to the framework of the machine, and provided with notches along its perimeter; a rotatory basket placed inside said bowl and a flexible band fitted on and fixed all around said bowl, and provided with opposite supports for the connection of one end of said dampers and tie-rods and, at least on a front, with two or more longitudinal ribs which fit into the corresponding notches of bowl (10).
  • the bowl notches are at least two, and preferably grouped at equidistant couples.
  • connection operation of the wash-bowl to the machine framework can be performed quickly, easily and in any wished position; the bowl may have a reduced thickness; absence of multiple supports and associated welding interventions for the same, which, as known, involves remarkable production savings.
  • the washing machine of this invention comprises a wash-bowl globally indicated with (10), of a basically cylindrical form and preferably made of enameled or varnished metal.
  • Said bowl is provided all around with a flexible band (12) externally fitted on, in correspondence of the "X" vertical axis.
  • Said band which is preferably made of steel, has a basically rectangular regular development, a limited height, comprised, for instance, between 50 and 200 mm, its length is slightly shorter than the external circumference of the bowl (10) and its thickness is preferably comprised between 1 and 3 mm. Such thickness may also be greater, especially when a material other than steel is utilized for its making.
  • the flexible band (12) may also be made of fiberglass-reinforced polypropropylene.
  • Said flexible band (12) which is placed in contact with bowl (10) and circumscribes it perimetrally, delimitating it along its cylindrical portion, is provided with two or more projecting ribs (14) parallel to one another, which extend preferably for the whole length of said band.
  • Said ribs (14) have a trapezoid profile which develops on the front of the band (12) which comes directly in touch with the bowl (10).
  • housings (16) complementary to said ribs are obtained, having the form of grooves or annular notches, whose extension is preferably equal to that of the development of said ribs (14).
  • Fig. 10, 11 and 12 show, as examples, some position possibilities of said band (12) along the perimeter of bowl (10).
  • bowl (10) shown on Fig. 10-12 has six housings (16) placed in two groups of 3 housings each, while band (12) is provided with two ribs (14).
  • Each of these ribs (14), preferably obtained in correspondence with the side ends of band (12), can be placed in one of the housings (16) of each group. In this way, ribs (14) can abut in three different positions, keeping however constantly the median portion of said band in correspondence of the "X" vertical axis.
  • the "X" axis corresponds to bowl (10) of greater diameter, shown on Fig, 10; the (X-1) axis corresponds to the bowl of middle diameter, shown on Fig. 11; and the (X-2) axis corresponds to the smaller diameter bowl, shown on Fig. 12.
  • An end of a spring or of a damper (26) is connected to supports (18) - which may be constituted by coupled and centrally drilled tongues - by means of a normal bolt (22) with associated nut (24).
  • Tie-rod (28) is integral with supports (20) which can be composed each by a tongue provided with one or more holes.
  • Tie-rod (28) is connected to a common dry brake, provided at one end with opposite jaws (30). Said jaws (30) operate by friction on a plate (32) connected to support (20) by means of normal bolts (34) with the associated nut (36).
  • tie-rod (28) is connected by welding or the alike to the framework or to the basis of the washing-machine.
  • Said support couples (18, 20) are provided on the band (12) in such a way as to be, when band (12) is placed all around bowl (10), in opposite position to one another and basically looking towards the upper and lower fronts of the framework of the washing machine (38).
  • the length of band (12) is preferably slightly shorter than the perimeter of bowl (10), so that its ends (46), which, once the placing has taken place, look towards the upper front, are not in touch with one another.
  • Said ends of band (12) are preferably bent onto themselves to form as many basically "U"-shaped housings, wherein a connecting and tying member is placed.
  • a blocking device (40) is then hooked to the opposite end "U"-bendings, obtained at the ends of the band on making the same.
  • Said blocking device (40) comprises a first basically rectangular framework (42) whose side branches show a central swelling (44), looking preferably towards the outside.
  • the front cross-bar (54) of said second framework (52) is introduced, during the connection of band (12) around bowl (10), into the "U"-shaped housing of band (12), opposite to that inside which cross-bar (48) is placed.
  • the opposite back cross-bar (56) of the second framework (52) constitutes the mesh point for the turnover of said framework (52) which, by rotating anticlockwise according to arrow A (see Fig. 8), lies down along one of the free ends of band (12).
  • a support (60) is placed, made of cast or moulded metal, or of plastic material.
  • Said support (60) is constituted by a plate (60') provided with two opposite couples of facing drilled extensions (64) which develop towards the outside of the bowl (Fig. 7 shows only a couple of said extensions).
  • Said drilled extensions (64) support the stop means that support the power unit (62) of the washing machine.
  • the exposed front (60") of said plate (60') is provided with basically trapezoid housings (16'), like those had been formed along the perimeter of bowl (10), for housing the projecting ribs (14) of band (12).
  • a "U"-bending is obtained inside which a projecting edge (68) integral with bowl (10) is obtained.
  • At least a projection (63) is preferably obtained suitable to prevent possible shiftings of support (60).
  • band (12) is brought to circumscribe perimetrally the cylindrical bowl (10).
  • the flexibility of the material of which the band is made permits to place the same in touch with bowl (10) and to block it on the latter by means of the blocking device (40) fixed on the free ends (46) looking towards the upper front of bowl (10).
  • ribs (14) of band (12) are caused to enter into the corresponding housings (16) provided on the bowl. If support (60) for the power unit is housed lower down, said ribs circumscribe plate (60') of same, entering in the corresponding housings (16') provided along the lower front (60").
  • the already mentioned assembly stage can articulate according to different steps and include, for instance, the prior connection of an end of the springs and dampers to the band and afterwards the blocking of the band to the bowl.
  • the projecting ribs could be obtained on the bowl instead of the band, which will have, consequently, the corresponding housings.
  • ribs and housings could have configurations, extensions and size different with respect to what has been proposed as an example, while the free ends of the above mentioned band could be connected to one another through rigid means or equivalent stop systems.

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)
  • Treatment Of Fiber Materials (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Claims (11)

  1. Drehtrommel-Vorderladerwaschmaschine, umfassend:
    einen Rahmen (38);
    einen zylindrischen Waschbehälter (10);
    eine innerhalb des Behälters (10) angeordnete Drehtrommel; Federn oder Dämpfer (26) und mit einer Bremse ausgestattete Spurstangen (28), um den Behälter (10) mit dem Rahmen (38) zu verbinden; und
    ein Befestigungsmittel für die Federn (26) und die Spurstangen (28),
    dadurch gekennzeichnet, daß
    - das Befestigungsmittel ein flexibles Band (12) ist, das insgesamt rund um den Waschbehälter (10) angesetzt und dort befestigt ist und das mit mindestens zwei vorstehenden Rippen (14) ausgestattet ist, die parallel zueinander verlaufen und sich über die gesamte Länge des Bandes (12) erstrecken und das mit Paaren von einander gegenüberliegenden vorstehenden Stützen (18, 20) für die Federn (26) und die Spurstangen ausgestattet ist;
    - der Behälter (10) entlang seines Umfangs mit Aufnahmen (16) ausgestattet ist, die als Nuten oder ringförmige Kerben gestaltet sind, die eine zu den Rippen (14) komplementäre Gestalt aufweisen;
    - eine Stütze (16) für eine Antriebseinheit (62) zwischen dem Band (12) und dem Behälter (10) angeordnet ist, wobei die Stütze (60) Aufnahmen (16') derselben Gestalt wie diejenigen (16) des Behälters (10) aufweist, und
    die vorstehenden Rippen (14) des Bandes (12) sowohl in die Aufnahmen (16) des Behälters (10) als auch in die Aufnahmen (16') der Stütze (60) eingesetzt sind.
  2. Waschmaschine nach Anspruch 1, wobei die Aufnahmen (16) des Behälters (10) mindestens zwei sind und in äquidistanten separaten Gruppen angeordnet sind.
  3. Waschmaschine nach Anspruch 1 oder 2, wobei die Rippen (14) ein trapezförmiges Profil aufweisen, das sich an dem Vorderteil des Bandes (12) erstreckt, das mit dem Behälter (10) in Berührung kommt.
  4. Waschmaschine nach einem der vorhergehenden Ansprüche, wobei die Zahl der Aufnahmen (16) des Behälters (10) größer als die Zahl der Rippen (14) des Bandes (12) ist.
  5. Waschmaschine nach irgendeinem der vorhergehenden Ansprüche, wobei sechs Aufnahmen (16) des Behälters (10) vorgesehen sind und die Aufnahmen in zwei separaten Gruppen je mit drei Aufnahmen angeordnet sind, zwei Rippen (14) des Bandes (12) vorgesehen sind und die Rippen je in jedem Seitenende des Bandes angeordnet sind und jede Rippe in eine der Aufnahmen (16) jeder Gruppe eingesetzt ist.
  6. Waschmaschine nach irgendeinem der vorhergehenden Ansprüche, wobei das flexible Band (12) aus Stahl besteht eine rechteckige Erstreckung aufweist, eine Höhe zwischen 50 und 200 mm aufweist und eine Dicke zwischen 1 mm und 3 mm aufweist.
  7. Waschmaschine nach irgendeinem der vorhergehenden Ansprüche 1 bis 5, wobei das flexible Band aus glasfaserverstärktem Polypropylen hergestellt ist.
  8. Waschmaschine nach irgendeinem der vorhergehenden Ansprüche, wobei das flexible Band (12) kürzer als der Umfang des Behälters (10) ist und seine einander gegenüberliegenden Enden "U"-förmig auf sich selbst umgebogen sind, wobei in der durch diese Umbiegungen gebildeten Aufnahme ein Mittel (40) zum Festlegen des flexiblen Bandes an dem Behälter eingehakt ist.
  9. Waschmaschine nach irgendeinem der vorhergehenden Ansprüche, wobei das flexible Band (12) einen zentralen Bereich (12') aufweist, der von Rippen (14) frei ist und dessen inneres Vorderteil mit mindestens einem Vorsprung (63) ausgestattet ist.
  10. Waschmaschine nach irgendeinem der vorhergehenden Ansprüche, wobei die Stütze (60) zwischen dem zentralen Bereich (12') des flexiblen Bandes (12) und dem Behälter (10) eingesetzt ist und aus einer Platte (60') besteht, deren freigelegtes Vorderteil (60") mit zwei oder mehr Aufnahmen (16') mit derselben Gestalt wie diejenigen (16) des Behälters (10) zur Aufnahme der Rippen (14) des Bandes (12) ausgestattet ist, wobei die Platte mit zwei einander gegenüberliegenden, durchbohrten Verlängerungen (64) zum Abstützen der Antriebseinheit (62) ausgestattet ist.
  11. Waschmaschine nach irgendeinem der vorhergehenden Ansprüche, wobei die Stütze (60) in Entsprechung an mindestens einem Ende in der Form einer "U"-förmigen Umbiegung (66) vorgesehen ist und der Behälter (10) mit einem vorstehenden Rand (68) ausgestattet ist, der in die "U"-förmige Umbiegung (66) eingesetzt ist.
EP93110256A 1992-07-03 1993-06-28 Frontlader-Trommelwaschmaschine Expired - Lifetime EP0577037B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI921640A IT1255408B (it) 1992-07-03 1992-07-03 Macchina lavabiancheria perfezionata
ITMI921640 1992-07-03

Publications (2)

Publication Number Publication Date
EP0577037A1 EP0577037A1 (de) 1994-01-05
EP0577037B1 true EP0577037B1 (de) 1997-10-29

Family

ID=11363621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110256A Expired - Lifetime EP0577037B1 (de) 1992-07-03 1993-06-28 Frontlader-Trommelwaschmaschine

Country Status (5)

Country Link
EP (1) EP0577037B1 (de)
AT (1) ATE159774T1 (de)
DE (1) DE69314859T2 (de)
ES (1) ES2108787T3 (de)
IT (1) IT1255408B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040047223A (ko) * 2002-11-29 2004-06-05 엘지전자 주식회사 드럼 세탁기
EP1849905B1 (de) 2005-02-02 2008-11-19 Girbau, S.A. Stützkonstruktion für waschmaschine
ES2306605B1 (es) * 2007-04-04 2009-06-17 Bsh Electrodomesticos España, S.A. Tambor de una maquina de tratado cuidadoso de la ropa.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1168137A (fr) * 1956-12-13 1958-12-04 App Electr Soc Gen Perfectionnement au montage des machines à laver
FR1515836A (fr) * 1965-06-25 1968-03-08 Electrochimie Soc Perfectionnements aux cuves de machines
DE1610059A1 (de) * 1966-07-20 1972-03-23 Suspa Federungstech Anordnung zur Abstuetzung des schwingenden Trommelsystems einer Waschmaschine
IT8334032V0 (it) * 1983-06-22 1983-06-22 Zanussi A Spa Industrie Vasca per macchine lavabiancheria.

Also Published As

Publication number Publication date
ATE159774T1 (de) 1997-11-15
ITMI921640A1 (it) 1994-01-03
EP0577037A1 (de) 1994-01-05
ITMI921640A0 (it) 1992-07-03
IT1255408B (it) 1995-10-31
DE69314859T2 (de) 1998-03-05
DE69314859D1 (de) 1997-12-04
ES2108787T3 (es) 1998-01-01

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