EP0665320B1 - Vorrichtung zur Verminderung von Waschmittelverlust in einer Waschmaschine - Google Patents

Vorrichtung zur Verminderung von Waschmittelverlust in einer Waschmaschine Download PDF

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Publication number
EP0665320B1
EP0665320B1 EP94118501A EP94118501A EP0665320B1 EP 0665320 B1 EP0665320 B1 EP 0665320B1 EP 94118501 A EP94118501 A EP 94118501A EP 94118501 A EP94118501 A EP 94118501A EP 0665320 B1 EP0665320 B1 EP 0665320B1
Authority
EP
European Patent Office
Prior art keywords
tub
tank
tunnel
object trap
trap
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
EP94118501A
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English (en)
French (fr)
Other versions
EP0665320A1 (de
Inventor
Hervé Pont
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.)
Compagnie Industrielle dAppareils Menagers SA CIAPEM
Original Assignee
Compagnie Industrielle dAppareils Menagers SA CIAPEM
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 Compagnie Industrielle dAppareils Menagers SA CIAPEM filed Critical Compagnie Industrielle dAppareils Menagers SA CIAPEM
Publication of EP0665320A1 publication Critical patent/EP0665320A1/de
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Publication of EP0665320B1 publication Critical patent/EP0665320B1/de
Anticipated expiration legal-status Critical
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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
    • 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/086—Arrangements for avoiding detergent wastage in the discharge conduit

Definitions

  • the present invention relates to a loss reducer machines for washing machines. It applies to all types of washing machines.
  • European patent application 0 263 742 describes a washing machine the embodiment of which makes it possible to reduce product losses detergents.
  • the object of the invention is to overcome the aforementioned drawbacks, in particular by allowing an effective reduction of mechanical losses in washing machines.
  • the invention relates to a loss reducer washing machine machines as described in claim 1.
  • the main advantages of the invention are that it reduces the pollution of water networks by detergents, which it allows economy of quantity of detergent used, that it can be easily and effectively combined with an easy removable object trap system access located at the bottom of the tank, and that it is simple to implement.
  • FIG. 1 shows a washing machine 1, top loading by example, comprising an access door 2 connected for example to the tank 3 by through a protective sleeve 4.
  • the laundry is loaded in a drum 5 contained in the tank 3.
  • the water from the tank is evacuated to a wastewater network via a hose outlet 6 by means of a pump 7 located in the lower part of the washing machine 1 next to an evacuation well 8 located in the lower part of the tank.
  • Mechanical losses consisting mainly of products undiluted detergents not used for washing fall to the bottom of the tank or in the evacuation well.
  • these detergents are discharged with water by pump 7 without being used. They are therefore a waste that increases the amount of detergent necessary to wash on the one hand and increase pollution of networks waste water on the other hand.
  • FIG. 2 shows the washing machine 1 of Figure 1 along F and provided a mechanical loss reduction device according to the invention, represented by a possible embodiment.
  • This mechanical loss reducer is consisting of at least one tunnel 21 connecting the tank 3 to the drainage well 8, the lower part of the tunnel being constituted by a first part 22 of the bottom of the tank 3 and its upper part by a roof 23 extending a second part 24 of the bottom of the tank 3, the second part 24 of the bottom of the tank being located at a level higher than the first part 22 of the bottom of the tank.
  • the limit between the two parts 22, 24 of the bottom is substantially perpendicular to a generator of the cylindrical shell of the tank.
  • the roof 23 extends as close as possible to the side 25 of the tank 4 opposite the second upper part 24 of the bottom, a necessary space to be reserved between the roof 23 and this side 25 to allow good water drainage.
  • Undiluted detergent then tends to settle on the upper part 24 or on the roof 23 of the tunnel 21.
  • This upper part 24 and this roof 23 being relatively close to the drum 5, the water included between these and the latter is agitated because of the rotary movement of the drum, which drives the detergents upwards and promotes their dilution as well as their use for washing.
  • Figure 3 shows an example of tank bottom realization allowing the production of a mechanical loss reduction device according to the invention.
  • the bottom of the tank 3 has a first lower part 22 and a second upper part 24.
  • the lower part 22 extends by example the cylindrical casing 31 of the tank 3 while two folds 32 on this cylindrical envelope limit two sides of the upper part 24 from the bottom of the tank, these folds 32 being due for example to the difference of radius of curvature of the cylindrical casing 31 and of the lower part 22 of the tank on the one hand and the radius of curvature of the upper part 24 on the other hand, the radius of curvature of the upper part 24 being higher than that of the lower part 22.
  • the upper part 24 is by example pierced by a corridor 33, the lower part of which extends the part lower 22 of the bottom of the tank.
  • This corridor 33 leads to the well drain 8 from the tank.
  • Side 34 of the corridor opposite its entrance extends for example one side 35 of the evacuation well 8.
  • the side 34 of the corridor opposite its entry can also for example belong to the side 25 of the tank 3 opposite the lower part 22 of the bottom from his tank.
  • the shape of the tank bottom presented in FIG. 3 can for example be obtained by molding.
  • FIG. 4 shows the formation of the tunnel 21 obtained using this shape of the bottom of the tank 3.
  • the corridor 33 is covered by a roof 23, the tunnel 21 then being formed by corridor 33 covered with this roof 23.
  • the roof 23 stops for example at the entrance to corridor 33 and at the sides 41 of the upper part 24 of the bottom of the tank 3, these sides 41 resulting from the difference in curvature between the two parts 22, 24 of the bottom of the tank 3.
  • the roof 23 can however for example exceed these two sides 41 to extend to the other side of the tank.
  • the roof 23 and these two sides 41 can be brought as close as possible to side 42 of the tank 3 opposite the upper part 24 of its bottom, so that the minimum amount of detergent is deposited on the lower part 22 of the bottom of tank.
  • the detergent deposited on this lower part 22 from the bottom is practically not driven towards the evacuation well 8 as long as pump 7 does not work. Only a very small part of the product detergent is likely to reach the drainage well.
  • the product detergent deposited on the lower part 22 of the bottom of the tank can by elsewhere partially manage to be driven by the drum 5, certainly so less effective than that deposited in the upper part of the bottom. He can be thus used for washing.
  • the detergent deposited on the bottom bottom 22 is all the more easily used for washing as the difference in level between the two parts 22, 24 of the bottom of the tank 3 is weak.
  • this is the part bottom 22 of the bottom which extends the cylindrical casing 31 of the tank and has so the same radius of curvature as this one, however it can be the reverse. That is to say that the upper part 24 of the bottom can extend the cylindrical casing 31 of the tank, the folds 32 then being located between the latter and the lower part 22 of the bottom, the radius of curvature of which is lower than that of the cylindrical casing 31.
  • the roof 23 of the tunnel can be attached or molded with the tank 3. However, for ease of molding the tank, it may be preferable to report it. It can for example be removable.
  • It is preferably arranged so as not to cause difference in level on the upper part 24 of the bottom of the tank.
  • FIG. 5 shows an exemplary embodiment of a reduction gear mechanical losses according to the invention equipped with an object trap.
  • the tank 3 is shown in section, at the axis of symmetry of the roof 23 of the tunnel, this axis being perpendicular to the two sides 25, 42 of the tank.
  • the roof is drilled above the evacuation well 8 to allow the passage of an object trap 51, preferably removable, the part of which upper is fixed or placed on the roof 23, for example by means of notches 52 on which the upper edges of the trap come to rest 51.
  • the latter has a first opening 53 overlooking the tunnel 21 and a second opening 54 giving into the evacuation well 8. It has for example inside a downward wall 55 connected to its upper part, with its cover for example. This is for example of spherical shape sinking into the object trap in order to leave a taken not exceeding the roof 23 of the tunnel.
  • the descending wall 55 leaves a passage between it and the bottom of the object trap.
  • the falling wall 55 descends for example to a level such that it prevents the two openings 53, 54 of the object trap to give one on the other, which forces the flow of water to go to the bottom of the object trap, objects 56 remaining trapped at the bottom of the object trap.
  • Arrows 57 illustrate in Figure 5 the flow of water when emptying the tank 3.
  • the water first passes through tunnel 21, then through the first opening 53 of the trap objects towards the bottom of the latter.
  • Objects 56 such as coins coins for example or any other small objects, remain prisoners at the bottom of the object trap, the water rising to the second exit 54 of the trap to go into the evacuation well 8 and exit by a opening opposite the blades 58 of the pump 7. It is then directed towards the outlet 59 for discharging water from the tank which is for example connected to the drain hose 6.
  • an opening 61 is for example made in the drum 5 as shown in Figure 6 to allow the object trap 51 located at the bottom of the tank 3 to be removed, and therefore to recover the objects held captive. Access to the object trap is very easy and in particular does not require removing the wash water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (6)

  1. Vorrichtung zur Verringerung mechanischer Verluste in einer Waschmaschine (1), bestehend aus mindestens einem den Bottich (3) mit einem Abfuhrsammler (8) verbindenden Tunnel (21) im unteren Bereich des Bottichs (3), wobei die Unterseite des Tunnels (21) von einem ersten Bereich (22) des Bodens des Bottichs (3) und die Oberseite des Tunnels von einem Dach (23) gebildet wird, das einen zweiten Bereich (24) des Bodens des Bottichs verlängert, der sich auf einer höheren Ebene als der erste Bereich (22) befindet, dadurch gekennzeichnet, daß die Grenze zwischen den beiden Bereichen im wesentlichen senkrecht zu einer Mantellinie der Zylinderhülle (31) des Bottichs verläuft, daß das Dach (23) des Tunnels, das den Abfuhrsammler (8) bedeckt, einen Durchlaß für einen Fangkorb (51) im Abfuhrsammler (8) besitzt und daß der Fangkorb (51) mit seinem oberen Bereich am Dach (23) des Tunnels (21) befestigt ist.
  2. Vorrichtung zur Verringerung mechanischer Verluste nach Anspruch 1, dadurch gekennzeichnet, daß der erste Bereich (22) des Bodens des Bottichs (3) die Zylinderhülle (31) des Bottichs (3) verlängert und daß der zweite Bereich (24) des Bodens einen größeren Krümmungsradius als die Zylinderhülle (31) aufweist.
  3. Vorrichtung zur Verringerung mechanischer Verluste nach Anspruch 1, dadurch gekennzeichnet, daß der zweite Bereich (24) des Bodens des Bottichs (3) die Zylinderhülle (31) des Bottichs (3) verlängert und daß der erste Bereich (22) einen geringeren Krümmungsradius als die Zylinderhülle (31) besitzt.
  4. Vorrichtung zur Verringerung mechanischer Verluste nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Dach (23) des Tunnels (21) über die Seiten (41) des zweiten Bereichs (24) auf Grund des Höhenunterschieds zwischen den beiden Bereichen (22, 24) des Bodens des Bottichs hervorragt, um in Richtung zur dem zweiten Bereich (24) entgegengesetzten Stirnseite (42) des Bottich (3) vorzustehen.
  5. Vorrichtung zur Verringerung mechanischer Verluste nach einem beliebigen der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Fangkorb entnehmbar ist.
  6. Vorrichtung zur Verringerung mechanischer Verluste nach einem beliebigen der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Fangkorb (51) eine erste Öffnung (53) in Richtung zum Tunnel (21) und eine zweite Öffnung (54) in Richtung zum Abfuhrsammler (8) aufweist, daß eine innere, nach unten gerichtete Wand (55), die am oberen Rand des Fangkorbs (51) befestigt ist, zwischen den beiden Öffnungen (53, 54) liegt, sodaß sie einen Durchlaß zwischen sich und dem Boden des Fangkorbs (51) definiert, wobei die Gegenstände am Boden des Fangkorbs (51) liegen bleiben.
EP94118501A 1993-12-23 1994-11-23 Vorrichtung zur Verminderung von Waschmittelverlust in einer Waschmaschine Expired - Lifetime EP0665320B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9315546A FR2714400B1 (fr) 1993-12-23 1993-12-23 Réducteur de pertes mécaniques notamment de pertes de produits lessiviels, pour lave-linge.
FR9315546 1993-12-23

Publications (2)

Publication Number Publication Date
EP0665320A1 EP0665320A1 (de) 1995-08-02
EP0665320B1 true EP0665320B1 (de) 1998-10-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118501A Expired - Lifetime EP0665320B1 (de) 1993-12-23 1994-11-23 Vorrichtung zur Verminderung von Waschmittelverlust in einer Waschmaschine

Country Status (5)

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EP (1) EP0665320B1 (de)
DE (1) DE69413943T2 (de)
ES (1) ES2125390T3 (de)
FR (1) FR2714400B1 (de)
HK (1) HK1012032A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2815648B1 (fr) * 2000-10-23 2003-01-17 Ciapem Dispositif de filtration pour un lave-linge
FR2818671B1 (fr) * 2000-12-26 2003-04-25 Ciapem Dispositif de filtration pour un lave-linge
US9220392B2 (en) 2008-11-28 2015-12-29 Fisher & Paykel Appliances Limited Filter and appliances including the filter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2345888A1 (de) * 1973-09-12 1975-03-20 Licentia Gmbh Laugenbehaelter fuer waschmaschinen
FR2604456B1 (fr) * 1986-09-26 1988-11-10 Ciapem Machine a laver a cuve en matiere synthetique

Also Published As

Publication number Publication date
HK1012032A1 (en) 1999-07-23
FR2714400A1 (fr) 1995-06-30
DE69413943D1 (de) 1998-11-19
DE69413943T2 (de) 1999-03-11
FR2714400B1 (fr) 1996-01-26
ES2125390T3 (es) 1999-03-01
EP0665320A1 (de) 1995-08-02

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