EP0142006B1 - Water supply device for a washing machine - Google Patents

Water supply device for a washing machine Download PDF

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Publication number
EP0142006B1
EP0142006B1 EP84111919A EP84111919A EP0142006B1 EP 0142006 B1 EP0142006 B1 EP 0142006B1 EP 84111919 A EP84111919 A EP 84111919A EP 84111919 A EP84111919 A EP 84111919A EP 0142006 B1 EP0142006 B1 EP 0142006B1
Authority
EP
European Patent Office
Prior art keywords
supply device
water supply
distributor
lever
water
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
EP84111919A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0142006A3 (en
EP0142006A2 (en
Inventor
Dario Crivello
Carlo Frairia
Filippo Guerra
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.)
Indesit Industria Elettrodomestici Italiana SpA
Original Assignee
Indesit Industria Elettrodomestici Italiana SpA
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 Indesit Industria Elettrodomestici Italiana SpA filed Critical Indesit Industria Elettrodomestici Italiana SpA
Publication of EP0142006A2 publication Critical patent/EP0142006A2/en
Publication of EP0142006A3 publication Critical patent/EP0142006A3/en
Application granted granted Critical
Publication of EP0142006B1 publication Critical patent/EP0142006B1/en
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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/028—Arrangements for selectively supplying water to detergent compartments

Definitions

  • the invention relates to a water supply device for a washing machine comprising a programmer incorporating a rotatable cam wheel, a movable water distributor for selectively distributing water to a plurality of compartments adapted to contain wash additives, means connecting said programmer and water distributor comprising a pivotted lever having a projection remote the pivot in contact with the cam wheel, a rod connected at one end to the pivotted lever and at the other end to the distributor so that the distributor supplies water of the compartments according to the position of the cam wheel of the programmer.
  • the present washing machines use the wash water for the draw of detergents or bleaching products or "softeners” (that will be called hereafter generically additives), that before entering the wash tank is made flow in the vessels containing the additives, so that it may carry them in the wash tank.
  • softeners that will be called hereafter generically additives
  • the supply of water was carried out by using various ways solenoid valves and various connecting pipes among the various ways of the valves and the vessels. The inconveniences of said kind of water supply are evident, since it is expensive, encumbering and rigid.
  • the D-A-2 409 450 describes a water supply device incorporating a water distributor based on a rectilinear moving piston formed in a way to receive cold water supply and/or hot water supply, and to deliver them to several compartments.
  • the French published utility model application 2 446 883 describes a water supply device incorporating a water distributor based on a rectilinear moving piston, controlled by a programming unit by means of levers; a play regulation device is incorporated in the pivot of one of the levers and is manually adjustable by means of a screw mechanism.
  • a water supply device is known in accordance with the prior art portion of Claim 1 (GB-A 2 104 109) in which a distributor serves for selectively distributing water either to a direct inlet to the washing tub, or to one of several compartments; a nozzle, carried by a rotary element, is controlled by a cam through a lever system; no adjustment of the play is provided.
  • the D-A-32 04 252 describes a rotary distributor for cold and hot water, showing a double spraying rotatable nozzle.
  • the EP-A-0 093 997 describes a detergent distributor for a washing machine showing a piston having rectilinear displacement into a plurality of operating positions, actuated by a cam of the program unit; in order to enable the play to be properly adjusted a lever is formed with at least two diverging arms in the shape of a fork, and is provided with cam follower means resiliently biased into engagement with said cam and means for adjusting the distance between the two arms of the fork; such means comprise two toothed sections and one toothed roller in engagement herewith, said roller being adapted to be rotated by means of a suitable tool.
  • the EP-A-0 094 034 describes a detergent distributor for a washing machine showing a reciprocating piston, actuated by a cam of a program unit through a lever system; the connection between the cam and the piston is obtained by a pair of interconnected levers one of which carries a cam follower element, while the other is connected to the piston and provided with play adjustment means in the form of an excentrically mounted shaft, rotatable by means of a suitable tool.
  • the aim of the present invention is to overcome the abovesaid inconveniences and to show a wash water supply device for a washing machine using a very simple, not too expensive distributor permitting in the meantime a precise adjustment of the initial position of the distributor, and permitting the draw of the additives with hot or cold water in all the wash phases.
  • the invention as claimed solves said problems. It has the advantage that the linkage means between the programmer cam and the rotating distributor nozzle is provided with an adjusting system which does not require additional parts because it is incorporated in the linkage means. Said new system can be set and adjusted when it is being fixed to the water supply device, and it maintains automatically its adjusted position. Further, said new system can be adjusted very exactly without being expensive.
  • a container 1 formed by a cover 2 and by a body 3 for the draw and the distribution of water to the various vessels.
  • On the cover 2 are got a first pipe 4 and a second pipe 5 for the draw of hot or cold water converging in a single inlet pipe 6 inside the container 1; four tabs 7 along its sides, one of which is sectioned, two exterior guides 8 and a hooking tooth 9 on its bottom, for its hooking to the body 3 of the container 1; a circular clearance hole 10, through which it is inserted a distributor 11; a cavity 12; a projecting ring 13 surrounding the hole 10, around which it is positioned a resetting spring 14 and four reference notches A, B, C and D one of which is used for the initial positioning of a small lever 15 and the other ones for a check, during the test, of the position of said small lever 15.
  • the body 3 of the container 1 presents along its sides, in correspondence of the tabs 7 of the cover 2, four brackets 16, one of which is sectioned, and in its bottom three openings not visible in the figures in correspondence of the guides 8 and of the tooth 9 of the cover 2 permitting the hooking and the fastening of the cover 2 of the body 3 of the container 1.
  • the distributor 11 is made of a spout 18, for the dispensing of water in the various pipes of the cover 2, which is partially in the air for getting an air gap in the way of the water according to the safety rules and by an inlet hole, not visible in the figure, which is countersunk for making easier the inlet of water coming from the inlet pipe 6 of the container 1.
  • the inlet of the distributor 11 is surrounded by a semicylinder 19 acting as a guard for eventual spots of water that might escape from the inlet and is topped by a cylinder 20, that in its upper part presents a rectangular projection 21 and in its middle a hole 22.
  • a small lever 15 presents a first central hole 23 around which, in the lower part of the small lever 15, is got a rectangular recess 24; a second lateral hole 25, for the initial positioning of the small lever 15; a third hole 26 for the fastening of an end of the resetting spring 14; a.sharp projection 27 in correspondence of the reference notches of the cover 2, with a function of index and a lodging 28, presenting an elastic reed 29 at whose lower end is present a check tooth 30 of triangular shape.
  • a tongue 31 is inserted presenting various triangular teeth 32 and a hole 33.
  • a screw 49 used for fastening the small lever 15 on the distributor 11.
  • In the hole 33 of the tongue 31 an end of a tie rod 34 is inserted, whose other end is fasened to a hook 35 of a detector lever 36.
  • the detector lever 36 presents also a first projection 37; a second projection 38, at whose end there is a spacer 39 and a flexible hinge (thin film plastic) 40 that connects it to a foot 41.
  • the foot 41 presents a number of lateral grooves 42 and a tooth 43, by which the detector lever 36 is hinged on a sheet 44 presenting a carving, not visible in the figures, and a hole 45.
  • the sheet 44 is then fastened to the frame-work of the washing machine by means of screws, bolts or rivets 46.
  • the first projection 37 of the detector lever 36 is pressed against a cam wheel 47, steadily connected to the timer of the washing machine, whereas the second projection 38 of the detector lever 36, by means of its spacer 39 that touches a bracket not visible in the figures, assures that the first projection 37 always remains in the plane of the cam wheel 47. In the figure 4 it is also visible a wheel 48 of the washing machine timer.
  • the mounting of the water supply device being subject of the present invention is carried out by making respectively the following operations: the foot 41 of the detector lever 36 is connected to the sheet 44 by inserting the lateral grooves 42 in the proper carving and by pressing till the tooth 43 of the detector lever 36 goes to hinge in the hole 45 of the sheet 44; an end of the tie rod 34 is connected to the hook 35 of the detector lever 36; the cylinder 20 of the distributor 11 is inserted in the hole 10 of the cover 2 of the container 1; the resetting spring 14 is positioned around the projecting ring 13 of the cover 2, clamping an end of the resetting spring to the cover; the small lever 15 is inserted on the distributor 11, so that the rectangular projection 21 of the cylinder 20 can be inserted in the corresponding rectangular recess 24 of the small lever 15 and at the same time the other end of the spring 14 is inserted in the hole 26 of the small lever 15; the screw 49 has to be inserted and screwed so that the distributor 11 and the small lever 15 remain steadily connected; the other end of the tie rod 34 has to be
  • the washing machine timer is to be positioned in a precise working condition; a pin is to be inserted in the hole 25 of the small lever 15 and in the corresponding cavity 12 of the cover 2, so that the small lever 15 is clamped in that point; in these conditions the projection 27 of the small lever 15 is in correspondence of one of the four notches A, B, C or D; at last the tongue 31 has to be pulled till the block consisting of the tie rod 34 and the tongue 31 is stretched.
  • the adjustment of the distance between the tie rod 34 and the tongue 31, and consequently the initial position of the distributor 11, can be adjusted with very high precision since even very little displacements are possible, as the distance between the teeth 32 is very little (about a millimetre).
  • the pin After the adjustment of the initial position of the distributor 11 the pin is taken off from the hole 25 and from the cavity 12 and the small lever 15 together with the distributor 11 connected with it may turn around their rotation axis.
  • the resetting spring 14 assures that the tie rod 34 is stretched and consequently that the projection 37 of the detector lever 36 is always in touch with the cam wheel 47.
  • the position of the distributor 11 and of the small lever 15 depends on the position of the cam wheel 37, which is determined by the wash-- ing machine timer.
  • the detector lever 36 changes its slope according to the position of the cam wheel 47 bending more or less around its flexible hinge 40, and how with said solution the use of a pin and of a bolt is avoided.
  • the procedure of hooking of the cover 2 on the body 3 is the following: the cover 2 is inserted and made slide on the upper part of the body 3 till the exterior guides 8 of the cover 2 insert themselves inside the lateral openings of the body 3 and the tooth 9 of the cover 2 inserts itself inside the central opening of the body 3 and hooks to it. In this position also the tabs 7 of the cover 2 are inserted inside the brackets 16 of the body 3 and the cover 2 results fastened to the body 3 without any possibility of displacements in any direction.
  • the body 3 of the container 1 is fastened to the frame-work of the washing machine by means of screws.
  • said device permits a very precise initial adjustment of the distributor, the draw of the additives for the wash with hot or cold water in all the wash phases, and the working of the detector lever by using a flexible hinge, the mounting of the cover on the body by means of a clamping fastening and at last it is very simple, reliable and not too expensive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP84111919A 1983-11-15 1984-10-04 Water supply device for a washing machine Expired EP0142006B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6818883 1983-11-15
IT68188/83A IT1171046B (it) 1983-11-15 1983-11-15 Dispositivo di alimantazione del l acqua per una macchina lavatrice

Publications (3)

Publication Number Publication Date
EP0142006A2 EP0142006A2 (en) 1985-05-22
EP0142006A3 EP0142006A3 (en) 1985-06-19
EP0142006B1 true EP0142006B1 (en) 1989-01-11

Family

ID=11308404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111919A Expired EP0142006B1 (en) 1983-11-15 1984-10-04 Water supply device for a washing machine

Country Status (3)

Country Link
EP (1) EP0142006B1 (it)
DE (1) DE3476087D1 (it)
IT (1) IT1171046B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2144909B1 (es) * 1996-11-04 2001-02-01 Balay Sa Sistema accionador autorregulable del distribuidor de agua en cubet as de lavadoras automaticas.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE352226A (it) * 1927-08-31
FR1466760A (fr) * 1966-02-01 1967-01-20 Falk Corp Bras de réaction
IT1045343B (it) * 1973-03-30 1980-05-10 Zanussi A Spa Industrie Dispositivo di immissione selettiva di sostanze nelle vsche delle macchine lavatrici
IT7934005V0 (it) * 1979-01-18 1979-01-18 Zanussi A Spa Industrie Perfezionamenti nei distributori di detrsivo per macchine lavabiancheria.
FR2454654B1 (fr) * 1979-04-20 1985-08-09 Ferodo Sa Transmission de longueur ajustable, notamment pour l'accouplement de deux volets de controle de la circulation d'air destine au chauffage d'un habitacle de vehicule automobile
IT8122422V0 (it) * 1981-07-21 1981-07-21 San Giorgio Elettrodomesti Gruppo per l'immissione di liquido lavante selezionato alla vasca di una macchina lavatrice.
DE3204252A1 (de) * 1982-02-08 1983-08-18 Miele & Cie GmbH & Co, 4830 Gütersloh Waschmitteleinspuelvorrichtung fuer waschmaschinen

Also Published As

Publication number Publication date
EP0142006A3 (en) 1985-06-19
IT1171046B (it) 1987-06-10
DE3476087D1 (en) 1989-02-16
EP0142006A2 (en) 1985-05-22
IT8368188A0 (it) 1983-11-15

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