EP0357900B1 - Waschmaschine mit einer Waschmitteleinspülvorrichtung - Google Patents

Waschmaschine mit einer Waschmitteleinspülvorrichtung Download PDF

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Publication number
EP0357900B1
EP0357900B1 EP89111967A EP89111967A EP0357900B1 EP 0357900 B1 EP0357900 B1 EP 0357900B1 EP 89111967 A EP89111967 A EP 89111967A EP 89111967 A EP89111967 A EP 89111967A EP 0357900 B1 EP0357900 B1 EP 0357900B1
Authority
EP
European Patent Office
Prior art keywords
water
compartment
holes
washing
washing machine
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
EP89111967A
Other languages
English (en)
French (fr)
Other versions
EP0357900A2 (de
EP0357900A3 (de
Inventor
Pietro Rizzetto
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.)
Industrie Zanussi SpA
Original Assignee
Industrie Zanussi 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 Industrie Zanussi SpA filed Critical Industrie Zanussi SpA
Publication of EP0357900A2 publication Critical patent/EP0357900A2/de
Publication of EP0357900A3 publication Critical patent/EP0357900A3/de
Application granted granted Critical
Publication of EP0357900B1 publication Critical patent/EP0357900B1/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
    • 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

Definitions

  • the washing machines currently produced normally dispose of different cycles for washing, or more generally, for treating the textiles introduced. These cycles differ both in terms of the type of treatment to which the textile is to be subjected (washing, rinsing, spinning, etc.) and in terms of the working properties of each individual cycle (e.g. the parameters of temperature, duration, spinning, addition of prewashing, etc., may vary for the washing cycle).
  • each operating cycle is composed of several successive phases, and each phase may involve an admission of water into the vessel and the corresponding introduction of a particular substance necessary for the specific type of treatment started.
  • these substances may be in either a liquid state or a powder state, and it is also known that these substances may be contained in separate compartments formed, for convenient use, in one pull-out drawer. It is also known that when this drawer is closed the various compartments are positioned below means for distributing and conveying water so that the water is discharged from these means by falling or by pressure or by the combined action of both, penetrates into the individual compartments mixing with the substances contained therein and transports them away to the inside of the vessel.
  • Type 1 is the simplest and original one. It consists of one water conduit coming from the water network directly (or via a solenoid valve, a means acting as a flow separator and a "jump in the air" for standard requirements) and opening in the vicinity of the center of the corresponding compartment.
  • a particularly important phenomenon occurring in this case is the accumulation on the side walls of the compartment which normally do not become wet and to which the detergent already sticks after a few washing cycles.
  • Type 2 again consists of a conduit which transports the water but this conduit, instead of discharging the water from one nozzle more or less in the middle of the compartment, is disposed along and above the vertical walls delimiting the compartment and is provided with a series of holes which discharge the water above and along the walls.
  • Type 3 no longer consists of a water conduit extending above the walls of the compartment, but involves a conduit which opens into a horizontal space extending over the entire surface of the compartment. In the lower surface delimiting the space from the bottom there is a series of holes in correspondence with the side walls and also with the center of the compartment.
  • Type 3 solves in a satisfactory way the problem of an accurate systematic removal of the washing powder in the compartment in normal operating states of the water network.
  • the pressure of the water network may vary within wide limits even outside the valid standard; and this unwanted variability can of course be transferred to the operation of the machine.
  • Fig. 1 almost vertical walls 1 of the compartment, bottom 2 of the compartment, detergent load 3, lateral water conduits 4 and central water conduit 5.
  • the water descending from lateral conduits 4 has produced lateral streams 6 in which it flows freely without removing any more detergent, while the apex of the detergent load remains, although it is reduced in quantity, and is thus not utilized in washing.
  • Fig. 3 represents a vertical section of a conventional means for supplying the water
  • Fig. 4 represents the same means modified according to the invention. Comparing Figs. 3 and 4 one will observe the following difference.
  • the two lateral pipes 7 and 7' are on the same plane as central pipe 7'' in the case of the conventional means (Fig. 3), while in the case of the inventive means (Fig. 4) the two lateral pipes 8 and 8' are located significantly higher than corresponding central pipe 8'', in such a way that the water flowing within the latter must overcome a step to enter 8 and 8'.
  • mouth 9 of central pipe 8'' is located in a higher position with respect to the bottom of this pipe, at substantially the same height as the bottom of pipes 8 and 8'.
  • holes 10 in central pipe 8'' are further apart and wider than holes 12 in lateral pipes 8, 8' to ensure uniform washing of the walls of the compartment containing the washing powder.

Landscapes

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

Claims (3)

  1. Waschmaschine, die eine Schublade mit mehreren Fächern zur Aufnahme der verschiedenen erforderlichen Substanzen für die vollständige Behandlung der Wäsche sowie ein Wasserversorgungssystem für die gezielte Zuführung von Wasser in die Fächer aufweist, wobei das genannte Wasserversorgungssystem im wesentlichen aus einer Leitung besteht, die mit einem Ende an das Wassernetz und mit dem anderen Ende an eine geschlossene, waagrechte Platte angeschlossen ist, die sich über den Fächern befindet und mit kanalisierten Zwischenräumen versehen ist, wobei mindestens einer der Zwischenräume mit einem Fach zur Aufnahme von pulverartigen Substanzen in Verbindung steht und in ein zentrales Rohr, von dem zwei seitliche Rohre abzweigen, unterteilt ist, wobei die Rohre an ihrer Unterseite mit Löchern versehen sind,
    dadurch gekennzeichnet, daß das zentrale Rohr (8'') des Zwischenraums, der dem Fach für die pulverartigen Substanzen entspricht, mit seiner Unterseite tiefer liegt als die Unterseiten der seitlichen Rohre (8, 8').
  2. Waschmaschine nach Anspruch 1,
    dadurch gekennzeichnet, daß die Löcher (10) in dem zentralen Rohr (8'') weiter voneinander entfernt und größer sind als die Löcher in den seitlichen Rohren (8, 8').
  3. Waschmaschine nach Anspruch 1,
    dadurch gekennzeichnet, daß die Mündung (9) des zentralen Rohrs (8'') höher liegt als der Boden dieses Rohrs (8'') und sich im wesentlichen auf gleicher Höhe mit dem Boden der seitlichen Rohre (8, 8') befindet.
EP89111967A 1988-09-06 1989-06-30 Waschmaschine mit einer Waschmitteleinspülvorrichtung Expired - Lifetime EP0357900B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8834040U IT218180Z2 (it) 1988-09-06 1988-09-06 Perfezionamento nei distributori di acqua per macchine lavabiancheria.
IT3404088U 1988-09-06

Publications (3)

Publication Number Publication Date
EP0357900A2 EP0357900A2 (de) 1990-03-14
EP0357900A3 EP0357900A3 (de) 1991-02-20
EP0357900B1 true EP0357900B1 (de) 1994-05-04

Family

ID=11238946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111967A Expired - Lifetime EP0357900B1 (de) 1988-09-06 1989-06-30 Waschmaschine mit einer Waschmitteleinspülvorrichtung

Country Status (4)

Country Link
EP (1) EP0357900B1 (de)
DE (1) DE68915086T2 (de)
ES (1) ES2051935T3 (de)
IT (1) IT218180Z2 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813366C2 (de) * 1978-03-28 1986-04-10 Bosch-Siemens Hausgeräte GmbH, 8000 München Waschmittel-Einspüleinrichtung für eine Wäschebehandlungsmaschine
DE2920000C2 (de) * 1978-05-30 1986-05-15 Domar, S.A., Martorellas Del Valles, Barcelona Vorrichtung zum Abgeben von Reinigungsmitteln in das Waschwasser von Waschmaschinen
DE7834912U1 (de) * 1978-11-24 1979-03-08 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Wasch- und Zusatzmitteleinspuelvorrichtung fuer Waschmaschinen

Also Published As

Publication number Publication date
ES2051935T3 (es) 1994-07-01
IT218180Z2 (it) 1992-04-08
IT8834040V0 (it) 1988-09-06
DE68915086T2 (de) 1994-10-06
EP0357900A2 (de) 1990-03-14
DE68915086D1 (de) 1994-06-09
EP0357900A3 (de) 1991-02-20

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