EP1574611A1 - Von oben beschickbare Waschmaschine mit zwei Trommelklappen - Google Patents

Von oben beschickbare Waschmaschine mit zwei Trommelklappen Download PDF

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Publication number
EP1574611A1
EP1574611A1 EP04101009A EP04101009A EP1574611A1 EP 1574611 A1 EP1574611 A1 EP 1574611A1 EP 04101009 A EP04101009 A EP 04101009A EP 04101009 A EP04101009 A EP 04101009A EP 1574611 A1 EP1574611 A1 EP 1574611A1
Authority
EP
European Patent Office
Prior art keywords
door
washing machine
machine according
flaps
hook
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.)
Withdrawn
Application number
EP04101009A
Other languages
English (en)
French (fr)
Inventor
Philippe Whirlpool Europe s.r.l. Valton
Manfred Whirlpool Europe s.r.l. Haerer
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 Corp
Original Assignee
Whirlpool Corp
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 Corp filed Critical Whirlpool Corp
Priority to EP04101009A priority Critical patent/EP1574611A1/de
Publication of EP1574611A1 publication Critical patent/EP1574611A1/de
Withdrawn legal-status Critical Current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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/10—Doors; Securing means therefor

Definitions

  • the present invention relates to a top-loading clothes washing machine comprising a drum with a pheriperal wall formed with an opening for loading and unloading cloth items, said opening being provided with two oppositely located and partially overlapping door flaps hingedly connected to opposite edges of said opening and provided with springs means biasing them towards their open positions, said door flaps being provided with hook and slot means for keeping the door flaps in their closed positions.
  • one of the door flaps comprises one or more hooks on the outer surface of the flap, which are adapted to cooperate with slots provided in the other door flap.
  • the two door flaps are urged by torsion or coil springs towards an open configuration, i.e. a configuration in which both door flaps are turned outside.
  • an open configuration i.e. a configuration in which both door flaps are turned outside.
  • the presence of the hooks on the outer surface of one of the flaps implies a risk of hurting the hands of the user, especially during the opening of the door, due to the acceleration impressed by the springs.
  • Another disadvantage of the known systems is the noise that is made if the door flaps are opened with one hand. These reasons lead the user to handle the opening and closing of the door flaps always with both hands. This is not always practical, especially when the user has to open the door flaps for loading laundry into the drum, since one hand is often used for supporting a container with laundry.
  • the two door flaps comprise an unlocking device adapted to be driven by the user and comprising a movable element for urging the door towards an open configuration by disengaging said hook means. Thanks to this further feature, the user can act on the movable element, which is preferably placed on the door flap having bigger dimension, with one hand only.
  • the two door flaps comprise a safety device having a movable element for preventing accidental opening of the door flaps caused by laundry that could eventually pulls the door flaps inside.
  • a safety device having a movable element for preventing accidental opening of the door flaps caused by laundry that could eventually pulls the door flaps inside.
  • Such safety device is adapted to be unlocked by the user together with said unlocking device.
  • both door flaps present a metal structure co-moulded (and therefore over-moulded) with a polymeric material.
  • This co-moulding process for producing the two door flaps assures a very smooth surface of the door flaps, and it allows to have a predetermined thickness of the door flaps, particularly of the door flap provided with slots for the hooks, so that such hooks do not protrude from the slot inside the drum, avoiding any risk of damaging laundry.
  • a top-loading clothes washing machine comprises a structural frame 10, an opening 12 closed by a lid 14, a tub (not shown) suspended in the frame 10 and a drum 18 having an horizontal axis rotatably mounted in the tub and provided with a peripheral wall formed with an opening 19 for the introduction and discharge of the laundry.
  • Hingedly connected to opposite transverse edges of opening 19 is a pair of door flaps 20 and 22, respectively, adapted to be brought to a partially overlapping relationship in their closed positions, as shown in figure 1.
  • Door flaps 20, 22 are of arched configuration so as to conform to the circular profile of the drum in their closed positions.
  • door flaps 20 and 22 Adjacent their respective hinged connections, door flaps 20 and 22 are each provided with at least one coil spring S (figure 12) adapted to bias the respective door flap towards its upright open position.
  • Each of the door flap 20 and 22 presents a metal structure 20a and 22a respectively (figures 3, 4 and 12) which is over-moulded with a polymeric material P.
  • a first door flap 20, called also "back door” and more distant from the front face of the washer 10 (i.e. closer to the hinge of the lid 14 than a second door flap 22) has preferably a bigger dimension than the second door flap 22, this latter called also "front door”.
  • the back door 20 presents, on its inner surface K (i.e. on its surface facing the inside of the drum) a couple of hooks 23 which are part of the metal frame 20a of the door flap (figure 12).
  • the hooks 23 are placed at a predetermined distance L from an edge F of the back door 20 opposite to the transverse edge F' hinged to the opening 19.
  • the back door 20 has also a circular seat 24, placed substantially adjacent the edge F.
  • the circular seat 24 has a bottom wall 24a with two openings: a first central butterfly-shaped opening 26 and a second offset segment-shaped opening 28.
  • the circular seat 24 is formed in a zone of the back door 20 where the metal structure 20a is lacking, i.e. it is shaped in the co-moulded polymeric material P, as it is clearly shown in figure 12.
  • a cylindrical knob 30 having an upper face with a grip portion 30a and a lower face with an axle 30b with two opposite radial fins 32.
  • the knob 30 presents a sidewall 30c with a downwardly oriented tooth-shaped cam 34.
  • the cam 34 can move in the opening 28 of the seat 24, when the knob is rotated by the user, while at the same time the radial fins 32 can rotate in the opening 26. This latter is also the stop for the rotation of the knob 30.
  • the knob 30 is rotatably mounted by means of a central screw 36 (figure 3) cooperating with a shell 38a of a safety locking device 38 installed, by means of a screw 40, on the inner face K of the back door 20.
  • a slider 42 having a tooth shaped end 42a and a second end 42b on which a spring 44 is acting.
  • the spring 44 is interposed between the slider 42 and the shell 38a.
  • the slider 42 is further provided with a shaped opening 42c through which the screw 36 is mounted, and having two surfaces 46a and 46b where the fins 32 of the knob 30 can act, upon rotation (in whatever direction) of the knob 30, against the force exerted by the spring 44.
  • the second door flap 22, or front door is smaller that the back door 20 and presents, adjacent its edge E opposite its transverse edge E' hinged to the opening 19, two slots 50 and a circular small groove 52 with slanted ends 52a and 52b respectively and adapted to cooperate with the tooth shaped cam 34 of the knob 30.
  • the closing of the two door flaps 20 and 22 is similar to the closing of the known washing machines.
  • the user with one hand pushes down the front door 22 and with his second hand pushes down the back door 22 so that the hooks 23 can engage the slots 50.
  • the end 42a of the slider 42 glides against the edge E of the front door 22, and it snap-engages on such edge.
  • the end 42a of the slider 42 overlaps the inner surface of the edge E, while the hooks 23 are inside the corresponding slots 50.
  • the cam 34 of the knob 30 is within the groove 52, in the central portion thereof.
  • the shape of the hooks 23 and the force exerted by the springs S of the door flaps prevent the door flaps 20 and 22 from opening, even in presence of forces exerted by cloth items inside the drum.
  • the slider 42, with its end portion 42a, has the function of a safety lock for avoiding any accidental aperture of the door flaps during the washing cycle of the machine.
  • the knob 30 (figure 14) in a clockwise or anti-clockwise direction.
  • one of the two fins 32 acts on one of the surfaces 46a and 46b of the slider 42, causing its movement against the spring 44 and disengaging the end 42a from the edge E of the front door 22.
  • the cam 34 glides on the bottom surface of the groove 52, particularly on one of the slanted ends 52a thereof, therefore exerting a force which moves the door flaps 20 and 22 one from the other.
  • the hooks 23 disengage from the slots 50.
  • the small dimension of the hooks 23 and their distance from the edge F' of the back door 20 hinged to the drum prevent the cloth items from getting caught on such hooks during loading and unloading of laundry.
  • the hooks does not protrude from the respective slots 50, also thanks to the high thickness of the front door 22 assured by the co-moulding process. This prevents the cloth items from being damaged by such hooks 23 during the washing cycle. Moreover the use of the safety-locking device 38 does allow having hooks 23 of very limited height.
  • the hooks can be also placed on the front door, and the movable element driving the opening of the door flaps can be different from a knob or lever.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP04101009A 2004-03-11 2004-03-11 Von oben beschickbare Waschmaschine mit zwei Trommelklappen Withdrawn EP1574611A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04101009A EP1574611A1 (de) 2004-03-11 2004-03-11 Von oben beschickbare Waschmaschine mit zwei Trommelklappen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04101009A EP1574611A1 (de) 2004-03-11 2004-03-11 Von oben beschickbare Waschmaschine mit zwei Trommelklappen

Publications (1)

Publication Number Publication Date
EP1574611A1 true EP1574611A1 (de) 2005-09-14

Family

ID=34814396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04101009A Withdrawn EP1574611A1 (de) 2004-03-11 2004-03-11 Von oben beschickbare Waschmaschine mit zwei Trommelklappen

Country Status (1)

Country Link
EP (1) EP1574611A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBG20090004A1 (it) * 2009-02-25 2010-08-26 Scamm Srl Dispositivo di sicurezza per l'aggancio delle tapparelle di lavabiancheria con carica dall'alto
EP2381025A1 (de) * 2010-04-21 2011-10-26 Candy S.p.A. Trommel für Waschmaschinen
RU2458195C2 (ru) * 2007-05-16 2012-08-10 Индезит Компани С.П.А. Загружаемая сверху стиральная машина, в частности, для белья, и способ ее работы
RU2459895C2 (ru) * 2007-07-30 2012-08-27 Электролюкс Хоум Продактс Корпорейшн Н.В. Стиральная машина с верхней загрузкой
US20160222570A1 (en) * 2013-06-17 2016-08-04 Werkhuizen Lapauw Nv Washing drum

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452803A (en) * 1966-08-31 1969-07-01 Philips Corp Hinged self-locking closure devices
DE2237409A1 (de) * 1972-07-27 1974-02-07 Siemens Elektrogeraete Gmbh Zweiteiliger trommeldeckel fuer eine mantelbeschickte trommelwaschmaschine
EP0095661A2 (de) * 1982-05-31 1983-12-07 INDUSTRIE ZANUSSI S.p.A. Trommel für eine obenbeschickbare Wäschewaschmaschine
DE20009053U1 (de) * 1999-05-24 2000-08-10 Electrolux Zanussi S.P.A., Pordenone Toplader-Waschmaschine
EP1245712A2 (de) * 2001-03-29 2002-10-02 Whirlpool Corporation Mantelbeschickbare Waschmaschine mit einer Waschtrommel in dem Maschinengehäuse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3452803A (en) * 1966-08-31 1969-07-01 Philips Corp Hinged self-locking closure devices
DE2237409A1 (de) * 1972-07-27 1974-02-07 Siemens Elektrogeraete Gmbh Zweiteiliger trommeldeckel fuer eine mantelbeschickte trommelwaschmaschine
EP0095661A2 (de) * 1982-05-31 1983-12-07 INDUSTRIE ZANUSSI S.p.A. Trommel für eine obenbeschickbare Wäschewaschmaschine
DE20009053U1 (de) * 1999-05-24 2000-08-10 Electrolux Zanussi S.P.A., Pordenone Toplader-Waschmaschine
EP1245712A2 (de) * 2001-03-29 2002-10-02 Whirlpool Corporation Mantelbeschickbare Waschmaschine mit einer Waschtrommel in dem Maschinengehäuse

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2458195C2 (ru) * 2007-05-16 2012-08-10 Индезит Компани С.П.А. Загружаемая сверху стиральная машина, в частности, для белья, и способ ее работы
RU2459895C2 (ru) * 2007-07-30 2012-08-27 Электролюкс Хоум Продактс Корпорейшн Н.В. Стиральная машина с верхней загрузкой
ITBG20090004A1 (it) * 2009-02-25 2010-08-26 Scamm Srl Dispositivo di sicurezza per l'aggancio delle tapparelle di lavabiancheria con carica dall'alto
EP2381025A1 (de) * 2010-04-21 2011-10-26 Candy S.p.A. Trommel für Waschmaschinen
US20160222570A1 (en) * 2013-06-17 2016-08-04 Werkhuizen Lapauw Nv Washing drum
US9783919B2 (en) * 2013-06-17 2017-10-10 Werkhuizen Lapauw Nv Washing drum

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