EP4194603A1 - Lave-linge pourvu de rabat à détergent dans un tiroir à détergent - Google Patents

Lave-linge pourvu de rabat à détergent dans un tiroir à détergent Download PDF

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Publication number
EP4194603A1
EP4194603A1 EP21212879.7A EP21212879A EP4194603A1 EP 4194603 A1 EP4194603 A1 EP 4194603A1 EP 21212879 A EP21212879 A EP 21212879A EP 4194603 A1 EP4194603 A1 EP 4194603A1
Authority
EP
European Patent Office
Prior art keywords
detergent
flap
washing
actuator
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Withdrawn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
EP21212879.7A
Other languages
German (de)
English (en)
Inventor
Bruno Hüsler
Fabio Rogenmoser
Markus Zwimpfer
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.)
V-Zug AG
Original Assignee
V-Zug AG
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 V-Zug AG filed Critical V-Zug AG
Priority to EP21212879.7A priority Critical patent/EP4194603A1/fr
Priority to EP22179384.7A priority patent/EP4194604A1/fr
Publication of EP4194603A1 publication Critical patent/EP4194603A1/fr
Withdrawn legal-status Critical Current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
    • 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 invention relates to a washing appliance, in particular a household washing appliance, in particular a washing machine or a washer-dryer.
  • the washing machine is suitable for carrying out a washing program.
  • the washing device includes a tub, a drum arranged in the tub for receiving laundry, and a detergent drawer.
  • the detergent drawer comprises a chamber which is suitable for receiving detergent.
  • the washing device includes a detergent flap which can be moved into a closed state and into a first open state.
  • the detergent drawer is designed in such a way that the detergent flap in the closed state retains the detergent in the chamber and in the first open state allows the detergent to escape from the chamber.
  • Washing devices usually offer three chambers arranged in a detergent drawer for dosing or supplying detergent.
  • the detergent can be in liquid or powder form. The user fills the dose into the chambers for a single wash.
  • the detergent can leak out of the chambers into the tub and settle on appliance components or on textiles. Textiles can be damaged by seizing and the detergent can lose washing and odor properties. In addition, dried detergent residues can lead to hygiene problems, e.g. biofilm, in the device.
  • the operating instructions for washing machines recommend using a dosing ball for the main detergent when using a delayed start of the washing program and placing it directly in the drum with the opening facing up.
  • the detergent only runs out when the drum starts to rotate. This process is cumbersome for the user.
  • the task is to provide a washing device that is as easy as possible for the user to operate.
  • the washing device includes a feed channel through which detergent can be fed from the detergent drawer into the tub.
  • the detergent drawer is designed in such a way that the detergent flap retains the detergent in the chamber when it is closed, in particular if the chamber is not completely full. If the detergent flap is in the open state, the detergent can escape from the chamber, i.e. the detergent is let into the tub.
  • the washing device includes an actuator for moving the detergent flap from the closed to the first open state, and a controller for moving the detergent flap by means of the actuator. This does not exclude that the detergent flap can also be moved by hand.
  • a detergent flap that can be opened by a controller has the advantage that it retains the detergent in the chamber when it is closed.
  • the detergent flap only opens when the detergent is to be dosed into the tub.
  • the detergent is therefore only metered into the tub when the detergent is required in the tub during the execution of the washing program.
  • the detergent does not flow from the chamber into the tub immediately after filling and before the start of the wash program.
  • the detergent does not settle on machine components or fabrics before the start of the wash program. Textiles are not damaged and the detergent does not lose its washing and odor properties.
  • the user does not have to use a dosing ball and put it in the drum with the detergent that has been poured in.
  • the controller is advantageously designed to move the detergent flap from the closed to the first open state at any time during the execution of the washing program.
  • the detergent flap can be moved from the closed to the first open state at least twice during the execution of a single washing program.
  • detergent can be metered into the tub at different and multiple times during the course of the washing program.
  • the dosing is timely and precise. This allows washing with less detergent and the washing result can be improved.
  • the controller is designed to move the detergent flap from the first open state to the closed state while the washing program is being carried out, in particular in such a way that detergent is present in the chamber after the closed state has been reached.
  • the controller or the actuator can not only open the detergent flap, but also close it. If the control opens the detergent flap only briefly at first, not all of the detergent that has been poured into the chamber escapes. The detergent left in the chamber can be dosed into the tub at a later point in time.
  • the detergent flap it is not possible to close the detergent flap using the actuator.
  • the detergent can only be metered into the tub at a single point in time and only completely.
  • the technical design of the detergent flap and actuator is simpler in this case.
  • the detergent flap can advantageously be moved into a second open state.
  • the detergent In the first open state, the detergent can escape with a larger volume flow than in the second open state. I.e. the detergent flap is less open in the second open state than in the first open state.
  • the detergent flap When closed, the detergent is retained in the chamber. I.e. the detergent flap keeps the chamber tight. However, being tight does not mean that the detergent flap keeps the chamber 100% tight. This takes into account unwanted and unavoidable leaks. In particular, retention of detergent means that no more than 5 ml, in particular no more than 2 ml, of detergent escapes from the chamber within one hour.
  • the washing device has a spring. Due to a spring preload, this presses the detergent flap into the closed state by means of spring force.
  • the actuator is designed to move the detergent flap into the first open state by means of an actuator force against the spring force.
  • the detergent flap is in the closed state as long as the actuator is at rest. Only when the actuator is actuated does it open the actuator opens the detergent flap by exerting a force.
  • the detergent flap can be designed in such a way that the detergent flap moves back into the closed state as a result of the spring force as soon as the actuator reduces the actuator force. This configuration of actuator and detergent flap is mechanically particularly simple and inexpensive.
  • the detergent flap can move about an axis of rotation by means of a rotary movement.
  • the axis of rotation lies in the spring or outside of the spring and/or the actuator presses a linearly moving rail against the detergent flap in order to open the detergent flap.
  • the washing device comprises a spring which presses the detergent flap into the first open state by means of a spring force.
  • a locking device is provided in order to hold the detergent flap in the closed state by locking. This means that when it is closed, the detergent flap is locked and the spring is pretensioned. As soon as the lock is released, the detergent flap moves to an open position due to the spring force.
  • the actuator can release the locking device by actuating the locking device in order to move the detergent flap from the closed state to the first open state.
  • This embodiment has the advantage that the actuator only has to apply a small amount of force in order to move the detergent flap from the closed state to the open state. Because the actuator only has to release the lock.
  • a spring is also provided, which presses the detergent flap into the first open state by means of a spring force.
  • a permanent magnet is configured and arranged to hold the detergent door in the closed state by magnetic force.
  • the washing appliance includes a closing device which automatically moves the detergent flap into the closed state when the detergent drawer is opened. In particular, this closing movement takes place as a result of the force exerted on the drawer by the user.
  • the design of the locking device is very simple. It is not necessary for the detergent flap to be able to be closed by means of the actuator.
  • the detergent flap can advantageously be designed in such a way that it can be closed by hand when the detergent drawer is open. This functionality can be combined with all of the embodiments already mentioned. In an embodiment in which the detergent flap can be closed by means of the actuator, the user can also close the detergent flap by hand.
  • liquid or powder detergent can be filled into the chamber without impairing the functionality of the detergent flap.
  • the detergent flap does not need to be removed or moved to a different position when using powder detergent.
  • the detergent drawer can have an overflow protection so that the detergent can escape from the chamber when the detergent flap is closed as soon as the chamber is completely filled.
  • FIG. 1 shows a washing machine 1 with a door opening 2 through which laundry can be introduced into a drum 3 .
  • the drum 3 is arranged inside a tub 4 .
  • the drum 3 and the tub 4 are shown schematically by means of dashed lines.
  • a controller 5 is arranged below the vat and is also shown schematically with dashed lines.
  • a detergent drawer 6 and a control element 7 are arranged on the top of the washing machine.
  • the detergent drawer 6 can be pulled out of the housing of the washing machine 1 . If the detergent drawer 6 is pulled out, the user can pour detergent into the detergent drawer 6 .
  • Figure 2a shows a first embodiment of a detergent drawer 6. This comprises three chambers 8a, 8b and 8c.
  • the chamber 8a is used to hold detergent for the main wash cycle.
  • the chamber 8b is used to hold detergent for the pre-wash cycle.
  • the chamber 8c is used to hold a fabric softener. At least the chamber 8a can accommodate both liquid and powder detergent.
  • a detergent flap 9 is arranged in the chamber 8a.
  • the detergent flap 9 can be moved at least into a closed position and into a first open position.
  • the Figures 2a, 2c and 2d show the detergent flap 9 in the closed position.
  • the Figure 2e shows the detergent flap 9 in the first open position. If the detergent flap 9 is closed, the detergent present in the chamber 8a is retained in the chamber 8a. If the detergent flap 9 is in the first open position, the detergent can escape from the chamber 8a. Liquid detergent immediately escapes from the chamber 8a and powdered detergent escapes as soon as the chamber 8a has been flooded with water.
  • the inside Figure 2b The arrow 10 shown shows the direction of flow of detergent flowing out of the chamber 8a.
  • the chambers 8a, 8b and 8c are located in a trough 11 of the detergent drawer 6.
  • an actuator designed as an electric motor 12 is arranged on the outside of this trough 11, an actuator designed as an electric motor 12 is arranged.
  • the controller 5 controls the electric motor 12, puts it into operation if necessary and also stops it again. If the electric motor 12 rotates, its rotational movement is transmitted to a toothed rail 13 that moves linearly. The toothed rail 13 then transmits its movement to a gear wheel 14 and the gear wheel 14 transmits its movement to a rail 15. Alternatively, the force could also be introduced via a belt drive.
  • the Figure 2e the detergent flap 9 in the first open position. It is clearly visible that the toothed rail 13 has moved downwards, the toothed wheel 14 has moved counterclockwise and the rail 15 has moved to the left. The detergent flap 9 has rotated counterclockwise about the axis of rotation 16 .
  • the detergent flap 9 can also be returned to the closed position, as shown in FIG Fig. 2d shown to be turned back.
  • the controller controls the electric motor 12 in such a way that it rotates clockwise.
  • the toothed rail 13 moves back up, the gear wheel 14 also moves clockwise, so that the rail 15 moves away from the detergent flap 9 to the right.
  • a spring 17 arranged along the axis of rotation 16 inside the detergent flap 9 rotates the detergent flap 9 clockwise back into the closed position.
  • the spring 17 is drawn in by means of a dashed circle.
  • the detergent flap 9 does not necessarily have to be moved into the first open position shown.
  • the detergent flap 9 can also be opened significantly less, ie in a second open position. This option can be used to meter detergent into the tub more slowly or in smaller quantities.
  • the 3 showed a second embodiment.
  • the same components are identified with the same reference numerals as in the first embodiment.
  • a detergent flap 9 is again arranged in the chamber 8a of the detergent drawer 6 .
  • a spring 17 is also arranged on the axis of rotation 16 and inside the detergent flap 9 and presses the detergent flap 9 into the closed position. If the detergent flap 9 is to be moved into the first open position, the electric motor 12 rotates and the rail 15 is moved in the direction of the arrow 15a.
  • the electric motor 12 and the rail 15 are not arranged on the tub 11 but are installed in the washing machine 1 separately from the detergent drawer 6 . If the detergent drawer 6 is pulled out of the washing machine 1 by the user, the contact between the toothed rail 15 and the detergent flap 9 is released immediately. If the detergent flap 9 was in the first open position when the detergent drawer 6 was closed, the spring 17 immediately turns the detergent flap 9 into the closed position when the detergent drawer 6 is pulled out.
  • the Figures 4a to 4d show a third alternative embodiment.
  • the Figure 4b is a detailed side view of the detergent drawer 6. Inside the detergent flap 9, there is again a spring 17 on the axis of rotation, which, in contrast to the previous embodiments, presses or moves the detergent flap 9 into the first open position. As in Figure 4b will be shown the detergent flap 9 is held in the closed position against the spring force by means of a locking device 18 . The locking device 18 blocks a projection 19 of the detergent flap 9. Because of this blockage, the detergent flap 9 cannot open.
  • the controller 5 controls the electric motor 12 in such a way that the plunger 20 moves in the direction of the arrow 21 .
  • the locking device 18 rotates clockwise as in FIG Figure 4b shown about its axis of rotation 22.
  • the projection 19 is released and the spring 16 rotates the detergent flap 9 from the closed position to the first open position.
  • the detergent flap 9 has a web 23 on its upper side.
  • the washing machine 1 also has an opening lever 24.
  • the opening lever 24 is arranged in a stationary manner on the washing machine 1 and does not move with the detergent drawer 6 when it is pulled out and pushed in.
  • An exemplary washing process could look like this: The user pulls the detergent drawer 6 out of the washing machine 1 in the first embodiment, fills detergent at least into the chamber 8a and then closes the detergent drawer 6 .
  • the detergent flap 9 is in the closed state. Detergent does not flow into the tub.
  • the user activates a washing program.
  • the electric motor 12 controlled by the controller 5, opens the detergent flap 9. Water flows into the chamber 8a and the detergent, liquid or in powder form, reaches the tub completely.
  • the detergent flap 9 could only be opened slightly and briefly and only allow part of the detergent to flow into the tub.
  • the controller 5 could then open the detergent flap 9 again at a later point in time in order to allow the remaining detergent to flow into the tub.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP21212879.7A 2021-12-07 2021-12-07 Lave-linge pourvu de rabat à détergent dans un tiroir à détergent Withdrawn EP4194603A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21212879.7A EP4194603A1 (fr) 2021-12-07 2021-12-07 Lave-linge pourvu de rabat à détergent dans un tiroir à détergent
EP22179384.7A EP4194604A1 (fr) 2021-12-07 2022-06-16 Lave-linge pourvu de trappe à lessive dans un tiroir à lessive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21212879.7A EP4194603A1 (fr) 2021-12-07 2021-12-07 Lave-linge pourvu de rabat à détergent dans un tiroir à détergent

Publications (1)

Publication Number Publication Date
EP4194603A1 true EP4194603A1 (fr) 2023-06-14

Family

ID=78824856

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21212879.7A Withdrawn EP4194603A1 (fr) 2021-12-07 2021-12-07 Lave-linge pourvu de rabat à détergent dans un tiroir à détergent
EP22179384.7A Pending EP4194604A1 (fr) 2021-12-07 2022-06-16 Lave-linge pourvu de trappe à lessive dans un tiroir à lessive

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP22179384.7A Pending EP4194604A1 (fr) 2021-12-07 2022-06-16 Lave-linge pourvu de trappe à lessive dans un tiroir à lessive

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EP (2) EP4194603A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1424428A2 (fr) * 2002-11-29 2004-06-02 Elbi International SPA Dispositif pour alimenter en produit de lavage une machine à laver
WO2007077146A1 (fr) * 2005-12-30 2007-07-12 Arcelik Anonim Sirketi Machine a laver
WO2008080797A1 (fr) * 2006-12-29 2008-07-10 Arcelik Anonim Sirketi Lave-linge/sèche-linge
EP2377988A2 (fr) * 2010-04-13 2011-10-19 Miele & Cie. KG Lave-linge doté d'un compartiment de lavage
WO2015199417A1 (fr) * 2014-06-23 2015-12-30 Lg Electronics Inc. Dispositif d'alimentation en détergent pour machine à laver

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1558182A (en) * 1975-09-08 1979-12-19 Ti Domestic Appliances Ltd Detergent dispensers for washing machines
ITTO20060258A1 (it) * 2006-04-07 2007-10-08 Iar Siltal Spa Macchina lavabiancheria con un dispositivo per il dosaggio e o la distribuzione di detersivi e simili

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1424428A2 (fr) * 2002-11-29 2004-06-02 Elbi International SPA Dispositif pour alimenter en produit de lavage une machine à laver
WO2007077146A1 (fr) * 2005-12-30 2007-07-12 Arcelik Anonim Sirketi Machine a laver
WO2008080797A1 (fr) * 2006-12-29 2008-07-10 Arcelik Anonim Sirketi Lave-linge/sèche-linge
EP2377988A2 (fr) * 2010-04-13 2011-10-19 Miele & Cie. KG Lave-linge doté d'un compartiment de lavage
WO2015199417A1 (fr) * 2014-06-23 2015-12-30 Lg Electronics Inc. Dispositif d'alimentation en détergent pour machine à laver

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EP4194604A1 (fr) 2023-06-14

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