EP0430366A1 - Dispositif de dosage de détergents liquides agencé dans la porte d'une machine à laver la vaisselle - Google Patents

Dispositif de dosage de détergents liquides agencé dans la porte d'une machine à laver la vaisselle Download PDF

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Publication number
EP0430366A1
EP0430366A1 EP90203105A EP90203105A EP0430366A1 EP 0430366 A1 EP0430366 A1 EP 0430366A1 EP 90203105 A EP90203105 A EP 90203105A EP 90203105 A EP90203105 A EP 90203105A EP 0430366 A1 EP0430366 A1 EP 0430366A1
Authority
EP
European Patent Office
Prior art keywords
dosing
metering
storage container
roller
chamber
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Withdrawn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
EP90203105A
Other languages
German (de)
English (en)
Inventor
Günter Dr. Ing. Kohl
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.)
Bauknecht Hausgeraete GmbH
Whirlpool International BV
Original Assignee
Bauknecht Hausgeraete GmbH
Whirlpool International BV
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 Bauknecht Hausgeraete GmbH, Whirlpool International BV filed Critical Bauknecht Hausgeraete GmbH
Publication of EP0430366A1 publication Critical patent/EP0430366A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4418—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants in the form of liquids

Definitions

  • the invention relates to a metering device for liquids arranged in the door of a dishwasher with a storage container and a metering chamber, which can be filled automatically from the storage container and emptied into the washing compartment of the dishwasher if required, and with an actuator for metering arranged in the metering chamber the liquid.
  • a metering device of the type mentioned is z. B. become known from DE-AS 13 01 452.
  • the metering device is located on the inside of a flap of a dishwasher which can be pivoted about a horizontal axis.
  • the dosing chamber is below the storage container with the flap open.
  • a filling channel runs from the upper area of the storage container to the upper area of the metering chamber, and the metering chamber has an outlet channel opening into the washing area, which can be closed by a solenoid valve or the like.
  • the displacement body arranged in the metering chamber can be pivoted eccentrically about an axis which is approximately horizontal when the flap is closed, the outlet channel extending from the metering chamber approximately at the level of this axis.
  • the metering chamber is in the form of a rotating body, preferably a cylinder, the axis of which coincides approximately with the pivot axis of the displacement body, the displacement body filling the metering chamber approximately up to the axis height.
  • a hand lever, an adjustment button or the like is arranged on its axis.
  • the invention has for its object to provide a metering device of the type mentioned, which is suitable for both liquid cleaners and cleaners in powder form and which allows a simple, targeted and reliable program-dependent metering of the liquid cleaner.
  • a rotatable metering roller is provided as the actuator, that the metering roller has at least two recesses arranged on the circumference, which form at least two metering spaces with the wall of the circularly cross-sectionally metering chamber, and that the metering roller by such angles It is rotatable that at least one other dosing space is filled when emptying a dosing space. With such a dosing device it is possible that when the appliance door is closed, a dosing space facing away from the washing compartment is first filled with the liquid from the storage container.
  • the dosing roller is then rotated through such an angle that the filled dosing space is now emptied into the washing compartment, with another dosing space being filled with liquid again from the storage container at the same time becomes.
  • any number of fillings and empties can be carried out during a cleaning process.
  • the roller being rotated through 180 ° when a control command is present.
  • the metering roller can also have three recesses offset on the circumference to form three metering spaces; the metering roller is rotated by 120 ° when a control command is present. A smaller angle of rotation may be better if small amounts of liquid are to be transported.
  • the drive for rotating the metering roller by a certain angle is program-controlled via a motor or a mechanical system.
  • This drive can also be switched off, in such a way that one of the recesses is always directed towards the wash cabinet and the metering roller is thus fixed.
  • a metering device designed in this way has the advantage that the metering room, which is open to the washing area, can now be used to hold powdered cleaning agents. A cover described in more detail below can then be opened in a customary manner under program control at a given time.
  • two bowl-shaped housing parts are provided for forming the metering chamber and for receiving the metering roller, the front housing part having a window directed towards the washing area of the dishwasher and the rear housing part having a fill opening which can be connected to the storage container.
  • the recesses of the metering roller can have different cross-sectional shapes.
  • a particularly simple and easy-to-manufacture design results from the recesses having a partially circular cross-sectional shape.
  • the window of the two-part housing facing the wash cabinet can also be provided with a pivotable cover for closing the metering chamber with respect to the wash cabinet.
  • the cover itself can also execute a control command for the metering roller during its pivoting movement be exploited.
  • the metering roller can be driven in various ways, e.g. B. on a ratchet, on a push rod or on a one-way clutch.
  • a mechanical drive accommodated by both housing parts, with a gear mechanism and a spring drive that can be tensioned by a pinion when the cover is closed, is provided for rotating the metering roller, the metering roller, which can be locked via cams, being unlocked via a triggering device when a program-specific trigger command is present can.
  • the double-shell housing contains both the metering roller and the mechanical drive.
  • the metering roller is rotated so far against the force of a tension spring that it is locked in a release device via cams attached on the end face.
  • a dosing space facing away from the washing compartment is such that it can be filled with a cleaning agent from the storage container. If a control command is present, the lid is opened, the metering roller being unlocked at the same time, so that the metering space filled with a cleaning agent is turned towards the washing area and rinsed out in the process.
  • FIGS. 1 to 4 an exemplary embodiment of the object according to the invention is shown in FIGS. 1 to 4 in a partially perspective, schematic representation.
  • FIG. 1 shows an exploded view of a two-part housing for a metering chamber
  • FIG. 2 shows a structural unit with a metering roller and associated mechanical drive for installation in the housing
  • Fig. 3 shows a reservoir for a liquid cleaner
  • Fig. 4 shows a partial cross section through the metering chamber with built-in metering roller.
  • the two-part housing 10 according to FIG. 1 with a front housing part 11 and a rear housing part 12 forms in the assembled state of the two housing parts a metering chamber 13 with a circular cross section for receiving a metering roller 14 and a space 15 for receiving a mechanical drive 16 for the metering roller 14
  • the metering roller 14 shown in FIG. 2 has two partially circular cutouts 17, 18 on the circumference, which form two metering chambers 19, 20 with walls of the metering chamber 13, as is shown purely schematically in FIG.
  • the metering roller 14 is rotated via the mechanical drive 16, which has a gear 21 with two toothed wheels 21a, b and a spring mechanism 22 with a spiral spring 23 within a spring chamber 24.
  • a cover 25 which is pivotably arranged on the front housing part 11 is closed, a pinion 26 of the cover 25 engages in the gearwheel 21b and causes the metering roller 14 to rotate, which is connected to the gearwheel 21a and the spiral spring 23 firmly seated on one and the same shaft 26.
  • a bolt 23a of the spiral spring 23 lies against one of two drivers 24a, 24b arranged opposite one another within the spring chamber 24, as a result of which the spiral spring 23 is tensioned.
  • the metering roller 14 has at the end face two latching cams 27 which are offset by 180 ° and which cooperate with a release arrangement 28 within the housing 11, 12. After completion of the mounting process, one of the cams 27 lies in a locking groove 29 of the triggering device 28, so that the metering roller 14 is locked. If the cover 25 is now opened according to the program during operation, the triggering device 28 unlocks the metering roller 14 so that the metering roller 14 with the recesses 17, 18 rotates through 180 ° and thus the two metering spaces 19, 20 interchange their position .
  • this dosing space 20 is emptied after rotation through a window 31 of the dosing chamber 13 into the washing space (not shown) of the dishwasher (arrow 32).
  • the filling of the metering chamber 13 with liquid cleaner takes place from the z. B. in the door of the dishwasher arranged storage container 30.
  • This storage container 30 has a filling opening 33 which can be reached after opening the door of the dishwasher, with a funnel-shaped inlet area and with a separate, smaller opening 34 for venting, in order to fill the liquid cleaner with overfills and impurities Avoid air bubbles.
  • the storage container 30 also contains additional baffles and baffles attached to the inside, in order on the one hand to ensure a constant To achieve mixing of the liquid cleaner and on the other hand to avoid settling of the detergents. This ensures that when the door is opened and closed (loading the dishwasher) there is constant mixing.
  • a rotatably mounted storage container can also be provided, which performs a rotary movement when the door moves by shifting the center of gravity, so that mixing of the liquid cleaner is achieved by means of spirals attached to the inside.
  • a non-return valve 35 is provided, which ensures a certain pre-metering amount in the pre-chamber 36 thus formed.
  • the total fill level in the storage container 30 is indicated by means of a visual display or via floats, electrically via signal lamps in the control panel.
  • the trunk-shaped free end 37 of the storage container 30 is connected to the metering chamber 13 via a filling opening 38.
  • the reservoir 30 is preferably releasably stored inside the door, e.g. B. snapped into place. This has the advantage that the reservoir can be rinsed out with clear water from time to time and thus deposits of the cleaning agents inside can be removed. With a transparent design of the storage container, the filling quantity on the one hand and any impurities on the other hand can be easily recognized at any time.

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  • Washing And Drying Of Tableware (AREA)
EP90203105A 1989-11-29 1990-11-23 Dispositif de dosage de détergents liquides agencé dans la porte d'une machine à laver la vaisselle Withdrawn EP0430366A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893939402 DE3939402A1 (de) 1989-11-29 1989-11-29 In der tuer einer geschirrspuelmaschine angeordnete dosiervorrichtung fuer fluessigkeiten
DE3939402 1989-11-29

Publications (1)

Publication Number Publication Date
EP0430366A1 true EP0430366A1 (fr) 1991-06-05

Family

ID=6394386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90203105A Withdrawn EP0430366A1 (fr) 1989-11-29 1990-11-23 Dispositif de dosage de détergents liquides agencé dans la porte d'une machine à laver la vaisselle

Country Status (2)

Country Link
EP (1) EP0430366A1 (fr)
DE (1) DE3939402A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7931032B1 (en) 2006-05-19 2011-04-26 Knight, Llc Bulk dispensing of chemicals into a residential dishwasher
US8210188B2 (en) 2008-02-13 2012-07-03 Whirlpool Corporation Dishwasher with dispensing system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5176297A (en) * 1990-06-14 1993-01-05 Diversey Corporation Dishwasher detergent dispenser
DE19720820A1 (de) * 1997-05-16 1998-11-19 Aweco Kunststofftech Geraete Verfahren und Dosiervorrichtung zum Betrieb einer Haushalts-Geschirrspülmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2174729A (en) * 1938-07-22 1939-10-03 Otto C Schlack Soap feeder
GB1149574A (en) * 1966-06-24 1969-04-23 Wilhelmus Johannes Cornelis Ma Washing products feeding apparatus
DE1301452B (de) * 1967-06-20 1969-08-21 Bauknecht Gmbh G Dosiervorrichtung fuer fluessiges Spuelmittel fuer Geschirrspuelmaschinen od. dgl.
WO1982000482A1 (fr) * 1980-08-11 1982-02-18 Eknor P Distributeur automatique
FR2593697A1 (fr) * 1986-02-06 1987-08-07 Eltek Spa Dispositif distributeur de detergents pulverulents et de substances de brillantage liquides a grande autonomie pour machines a laver, en particulier lave-vaisselle
DE3730405A1 (de) * 1986-09-29 1988-03-31 Eltek Spa Waschmittel-einspueler, insbesondere fuer waschmaschinen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2174729A (en) * 1938-07-22 1939-10-03 Otto C Schlack Soap feeder
GB1149574A (en) * 1966-06-24 1969-04-23 Wilhelmus Johannes Cornelis Ma Washing products feeding apparatus
DE1301452B (de) * 1967-06-20 1969-08-21 Bauknecht Gmbh G Dosiervorrichtung fuer fluessiges Spuelmittel fuer Geschirrspuelmaschinen od. dgl.
WO1982000482A1 (fr) * 1980-08-11 1982-02-18 Eknor P Distributeur automatique
FR2593697A1 (fr) * 1986-02-06 1987-08-07 Eltek Spa Dispositif distributeur de detergents pulverulents et de substances de brillantage liquides a grande autonomie pour machines a laver, en particulier lave-vaisselle
DE3730405A1 (de) * 1986-09-29 1988-03-31 Eltek Spa Waschmittel-einspueler, insbesondere fuer waschmaschinen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7931032B1 (en) 2006-05-19 2011-04-26 Knight, Llc Bulk dispensing of chemicals into a residential dishwasher
US8210188B2 (en) 2008-02-13 2012-07-03 Whirlpool Corporation Dishwasher with dispensing system

Also Published As

Publication number Publication date
DE3939402A1 (de) 1991-06-06

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