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EP2949801B1 - Vorrichtung zur behandlung von textilien und hilfswaschvorrichtung - Google Patents

Vorrichtung zur behandlung von textilien und hilfswaschvorrichtung Download PDF

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Publication number
EP2949801B1
EP2949801B1 EP15168217.6A EP15168217A EP2949801B1 EP 2949801 B1 EP2949801 B1 EP 2949801B1 EP 15168217 A EP15168217 A EP 15168217A EP 2949801 B1 EP2949801 B1 EP 2949801B1
Authority
EP
European Patent Office
Prior art keywords
tub
washing
duct
auxiliary
pump
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.)
Active
Application number
EP15168217.6A
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English (en)
French (fr)
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EP2949801A1 (de
Inventor
Cristiana Giglioni
Alberto Gasparini
Monica Milani
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.)
Whirlpool EMEA SpA
Original Assignee
Whirlpool EMEA 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
Priority claimed from IT000382A external-priority patent/ITTO20110382A1/it
Priority claimed from IT000380A external-priority patent/ITTO20110380A1/it
Application filed by Whirlpool EMEA SpA filed Critical Whirlpool EMEA SpA
Publication of EP2949801A1 publication Critical patent/EP2949801A1/de
Application granted granted Critical
Publication of EP2949801B1 publication Critical patent/EP2949801B1/de
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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
    • D06F29/00—Combinations of a washing machine with other separate apparatus in a common frame or the like, e.g. with rinsing apparatus

Definitions

  • the present invention relates to an appliance for treating textile items, which includes:
  • the invention moreover regards an auxiliary washing device of the type referred to above.
  • Appliances of the type referred to above are known and typically consist of a main washing machine, associated to the cabinet of which is a lower base, functionally integrated in which is the auxiliary washing device.
  • the main machine of the appliance is basically provided for carrying out normal treatment on more or less bulks loads of traditional textile items, such as garments, linenware, curtains, etc.
  • the auxiliary device is generally used for washing articles that require a particular treatment, and possibly for washing amounts of traditional textile items that are so modest as not to justify - from the standpoint of water and energy consumption - execution of a complete cycle of treatment on the main machine.
  • the load-bearing structure of the auxiliary device typically comprises a stationary part, fastened underneath the cabinet of the main machine, and a movable part, constituted by a drawer.
  • a movable part constituted by a drawer.
  • a cylindrical washing tub open at the top, rotatably mounted within which is an agitator member, constituted by a cylindrical drum, which is also open at the top.
  • a flow of water is fed into the corresponding tub, until a certain level is reached so that the drum, and hence the articles to be treated contained therein, are at least partially immersed in the washing bath; the drum is then set in rotation via an electric motor.
  • a discharge pump is activated in order to evacuate, via a discharge pipe, the liquid used for washing.
  • An appliance substantially of the type referred to above is known, for example, from the document US 2010/0064736 A1 .
  • the present invention is basically aimed at overcoming the aforesaid drawback, and in particular to provide an appliance of the type referred to above whose auxiliary device, though being simple to produce and easy to use, ensures improved treatment results, with modest levels of consumption of water and power.
  • auxiliary devices according to the prior art the user has to pour the possible washing agent, for example a powder detergent, directly on the items to be treated that are inside the cylindrical agitator mounted in the tub.
  • the water necessary for washing is then loaded directly into the tub, and the movement of the agitator is started.
  • This type of operation frequently causes an excessive formation of foam and a non-efficient exploitation of the detergent.
  • the present invention is aimed at overcoming the aforesaid drawback, by means of an auxiliary device that is simple to produce and easy to use. This aim is achieved by an auxiliary washing device having the characteristics referred to in claims 1-12 and by an appliance for treating textile as per claim 13.
  • references to "an embodiment” or “one embodiment” in the framework of the present description is meant to indicate that a particular configuration, structure, or characteristic described in relation to the embodiment is comprised in at least one embodiment.
  • phrases such as “in an embodiment”, “in one embodiment”, and the like, that may be present in various points of the present description do not necessarily all refer to one and the same embodiment.
  • the particular configurations, structures, or characteristics can be combined in any adequate way in one or more embodiments.
  • the references used in what follows are only provided for convenience and do not define the sphere of protection or the scope of the embodiments.
  • the main machine forming part of the appliance according to the invention comprises all the elements in themselves known for operation of a laundry washing machine, or a laundry washer-drier, or a laundry drier.
  • FIGs 1 and 2 designated as a whole by 1 is an appliance for treating textile items according to the invention.
  • the appliance 1 comprises a main machine 10, designed for treatment of textile items, which may be a laundry washing machine, a laundry drier, or a laundry washing and drying machine.
  • the main machine 10 is a laundry washing machine.
  • the machine 10 is of a generally known construction, apart from the aspects that will be described hereinafter in relation to a possible embodiment of the invention, illustrated in Figure 15 . Consequently, it is assumed in what follows that the machine 10 includes all the elements normally known for operation of a laundry washing machine.
  • the machine 10 has a generally parallelepipedal cabinet 11, elastically suspended inside which is a washing tub that houses a laundry drum, rotatable about a horizontal axis.
  • the machine 10 then includes a series of usual electrical loads (motor, pumps, solenoid valves, etc.) and corresponding control means, preferably including a microcontroller electronic control board.
  • the aforesaid control means of the machine 10 include a user interface, designated by 12, comprising known selection means (such as keys, pushbuttons, selectors, etc.) and a display device 12a, for example, of an LCD type.
  • a user interface 12 comprising known selection means (such as keys, pushbuttons, selectors, etc.) and a display device 12a, for example, of an LCD type.
  • the aforesaid user interface 12 is integrated in the upper part of a front door 11a of the cabinet 11.
  • the appliance 1 moreover includes an auxiliary washing device, designated as a whole by 20.
  • the auxiliary device 20 has a bearing structure 21 of its own, which is provided for being fastened to the cabinet 11 of the main machine 10.
  • the structure 21 is fastened to the cabinet 11 in a lower position of the latter, to form a sort of base or pedestal.
  • the structure 21 of the device 20 according to the invention can also be conceived for installation in the upper part of the cabinet 11, for example on its top, designated by 11b, or in substitution thereof.
  • the bearing structure 21 of the auxiliary device 20 has a volume and a height that are decidedly smaller than the volume and the height of the cabinet 11 of the main machine to which the device itself must be combined.
  • the height A of the cabinet 11 of the machine 10 may be approximately 830 mm
  • the height B of the structure 21 of the device 20 may be approximately 215 mm; more in general, the height B may be less than half of the height A of the cabinet 11, preferably less than approximately one third of the height A.
  • the bearing structure 21 of the device 20 includes a part 21a that is stationary with respect to the cabinet 11 of the machine 10, as well as a part 21b that is movable or displaceable with respect to the stationary part 21a in order to enable access to a washing tub 22, mounted within which in a movable way is an agitator member 23, used for moving articles to be treated in the auxiliary device 20.
  • the movable part 21b of the structure is substantially configured like a drawer and comprises a framework 24, preferably made of metal, with a front lid 25 provided with a gripping recess 25a or some other type of grip.
  • a bottom housing body 26 Fixed on the framework 24 are a bottom housing body 26, which is generally hollow and open upwards, coupled at the top to which is a second body 27 defining the washing tub 22.
  • the bodies 26 and 27 may be made, for example, of thermoplastic material and may possibly also be replaced by a single piece.
  • guide means (not indicated), aimed at enabling sliding of the movable part with respect to the stationary part, between an extracted position and a retracted position.
  • the stationary part 21a basically consists of two side walls 28 and a series of cross members, preferably constituted by metal sectional elements, some of which (not indicated) are visible in the subsequent figures.
  • the auxiliary device 20 is visible in greater detail in Figures 3-6 . Visible in Figure 3 are, in addition to the two side walls 28, also an upper component of the stationary part 21a, designated as a whole by 30, which in a preferred embodiment fulfils functions of sprinkler member.
  • 31 and 32 are a first duct and a second duct for inlet of a washing liquid into the tub, while designated by 33 is a drain duct.
  • FIG. 4 Represented in Figure 4 are only some of the components of the auxiliary device 20, for a better understanding of the invention. Also visible in said figure are the lower body 26 and, partially, the body 27 defining the tub 22 of Figure 1 . The upper component or sprinkler member 30 is moreover partially visible. From said figure it may be noted how the body 26 defines a front wall 26a that is to be coupled with the lid 25 of the movable part of structure 21b.
  • Designated by 34 is a lower opening of the body 26, passing in which is a pipe 35 connected to an opening for draining the tub 22 (visible only in Figure 6 and designated by 22a), to which there can advantageously be associated a protection device - such as, for example, a filter with a rather wide mesh, designed to intercept any possible objects of large dimensions (such as coins, broaches, or buttons) and thus prevent them from entering the pipe 35.
  • a protection device - such as, for example, a filter with a rather wide mesh, designed to intercept any possible objects of large dimensions (such as coins, broaches, or buttons) and thus prevent them from entering the pipe 35.
  • the bottom 27a of the body 27 defining the tub 22 advantageously has a development that descends or is inclined towards the drain opening 22a in order to facilitate inflow of the washing liquid into the pipe 35 and consequently emptying of the tub 22.
  • the pump 40 designated as a whole by 40 is an electric pump, of a conception in itself known, having an intake section 41 and a delivery section 42.
  • the pump 40 whether centrifugal or volumetric (it may be, for example, in said latter case, a peristaltic pump, as well as a lobe pump or a diaphragm pump), is able to work overhead.
  • Designated by 31 is the aforesaid first water-inlet duct, which is in fluid communication with at least one internal channel of the sprinkler member 30.
  • FIG. 5 is a partially exploded view of the device 20.
  • the sprinkler member 30 presents a first inlet and a second inlet, designated by 30a and 30b, which in one embodiment are connected in fluid communication with the aforesaid internal channel of the sprinkler member 30.
  • the agitator member 23 the body 27 defining the washing tub 22, and the body 26 to which the body 27 is to be coupled at the top; as can be noticed, coupled to the front wall 26a of the body 26 is the front lid 25.
  • Figure 5 moreover designated by 36 is an electric motor, of a type in itself known, for actuating the agitator member 23.
  • the pump 40 is anchored to the fixed part 21a of the structure 21, preferably to one of the side walls 28 so as to enable inspection, after prior removal of a corresponding plug, designated by 40a in Figures 1 and 3 , during possible maintenance operations.
  • the pump 40 is in a position generally behind the device 20, and preferably in a position comprised between the rear ends of the side walls 28 and the position assumed by a wall rear 26b of the body 26, when the movable part of structure 21b is in its position completely inserted in the fixed part of structure 21a.
  • the auxiliary device 20 comprises a diverting device 50, which is operatively set between the delivery section 42 of the pump 40 and the drain duct 33 (it should be noted that, in Figure 4 , the drain duct 33 has not been represented for reasons of greater clarity).
  • the diverting device 50 includes a hollow body having an inlet 51 that is connected in fluid communication with the delivery section 42 of the pump, via a pipe 52.
  • a first outlet 53 of the hollow body of the diverter 50 is connected in fluid communication with the duct 32, designed to introduce washing liquid into the tub 22, whilst the second outlet 54 of the device 50 is connected in fluid communication with the drain duct 33 ( Figure 5 ).
  • the duct 32 is connected to the inlet 30b of the sprinkler member 30, whereas the duct 31 is connected to the inlet 30a. From Figure 4 it may moreover be noted how the outlet pipe 35 of the tub 22 is connected to the intake section 41 of the pump 40.
  • the diverting device 50 can be of any known type and preferably comprises an electric actuator, partially visible in Figures 4 and 6 , where it is designated by 50a, for example, a thermal actuator. Said actuator is operative for displacing a partition wall inside the hollow body of the diverter 50 in two opposite positions, in one of which the inlet 51 is in communication with the first outlet 53 and in the other is in communication with the second outlet 54.
  • the diverting device 50 i.e., its actuator 50a, is driven by a control system to assume a first position and a second position, in which, respectively, washing liquid leaving the delivery section 42 of the pump 40 is directed towards the washing tub 22, through the outlet 51 and the duct 32, or else towards the drain duct 33, through the outlet 54.
  • the control system is also pre-arranged for driving the diverting device 50 in order to assume the aforesaid first position in at least one washing step of a treatment cycle carried out by the auxiliary device 20, in such a way as to cause a recirculation of washing liquid in the tub 22 via the pump 40, and to assume the aforesaid second position in at least one draining step of the treatment cycle in order to cause discharge of the washing liquid from the tub 22, via the pump 40 itself.
  • the amount of water that can be used for carrying out a treatment cycle can be less than in the known art, in any case guaranteeing an efficient washing action, or else, given the same amount of water used as compared to the known art, guaranteeing a better washing efficiency.
  • the upper sprinkler member 30 is provided, which extends at least in part above the tub 22, and precisely above its upper opening.
  • the member 30 there is at least one channel, partially visible in Figure 6 , where it is designated by 30c, provided with a plurality of nozzles or openings designated by 60 in Figure 7 (see also Figure 10 ), facing directly inside the tub 22 when the movable part of structure 21b is in its retracted position.
  • the internal channel 30c of the sprinkler member 30 is connected to the inlet 30b of Figure 5 , to which the duct 32 is connected.
  • the washing liquid is sprinkled in a substantially rain-like fashion on the articles to be treated contained in the tub 22, through the openings 60 of the member 30.
  • the cross section of the channel 30c decreases along its development. In this way, there is obtained the possibility of maintaining the speed of the water in the channel itself substantially constant, compensating for the progressive loss of flowrate through the openings 60.
  • the internal channel 30c of the sprinkler member 30 also has a second inlet, designated by 30a in Figure 5 , to which the duct 31 is connected, which is in turn in fluid communication with a water-supply source.
  • the water is first fed through the duct 31, and then penetrates into the channel 30c inside the sprinkler member 30 and drops into the tub 22, via the openings 60.
  • the motor 36 is actuated for setting the agitator member 23 in rotation.
  • the control system brings the diverting device 50 into its first operative position and governs the pump 40, in such a way that the washing liquid will be taken in by the pump itself through the outlet 22a ( Figure 6 ) and the pipe 35 ( Figure 4 ) and then re-introduced into the tub 22 through the pipe 52, the diverter 50, the pipe 32, and the sprinkler member 30.
  • the control system governs arrest of the motor 36 and switching of the diverting device 50 into the second operative position.
  • the pump 40 is activated, with the washing liquid present in the tub 22 that can hence be taken in via the duct 35 connected to the intake section 41 of the pump 40, and then be directed towards the drain pipe 32.
  • the tub 22 has a bottom wall and a peripheral wall (designated by 27a and 27b in Figure 6 ) and an upper opening (visible, for example, in Figure 1 ), with a portion of the sprinkler member 30 provided with openings 60 ( Figure 7 ) that overlies the upper opening of the tub 22.
  • the agitator member 23 preferably has a body, the lower face of which faces directly the bottom wall of the tub 22, whilst its upper face, designed to support the articles to be treated, directly faces the aforesaid portion of the sprinkler member 30. With this arrangement the aforesaid rain-like sprinkling of the articles to be treated is guaranteed.
  • the peripheral wall 27b of the tub 22, which is here substantially cylindrical, and the body of the agitator member 23 substantially delimit the volume for containment of the articles to be treated. In this way, it is not necessary to envisage a drum as in the prior art, provided with a peripheral wall.
  • the body of the agitator member 23 is substantially disk-shaped, as may be seen in Figures 5 and 6 , and is rotatably mounted in the tub 22 so as to turn according to a substantially vertical axis.
  • this agitator member has in its upper face a plurality of radial ribbings 23a, which contribute to favouring agitation of the articles contained in the tub 22.
  • the body of the agitator member 23 is provided with a plurality of through openings 23b, through which the washing liquid can reach the inclined bottom 27b of the tub 22 and then flow out towards the corresponding structure opening 22a ( Figure 6 ).
  • the body of the agitator member 23 has a hollow central relief, designated by 23c, which is rotatably mounted on a central relief 27c of the bottom wall of the tub 22.
  • This type of coupling guarantees an optimal centring of the agitator member 23 with respect to the tub 22, during its rotation.
  • Conveniently housed within the central relief 27c of the tub 22 is the motor 36, the stator of which is anchored at least to the body 27 and the rotor of which is connected to the agitator member 23, with interposition of adequate hydraulic seal means.
  • the pump 40 is mounted on the stationary part 21a of the load-bearing structure 21 of the auxiliary device 20, whilst the body 27 defining the tub 22 is mounted on the movable part 21b, which is substantially configured as a drawer that can assume an extracted position and a retracted position.
  • the pipe 35 that connects the intake section 41 of the pump 40 to the drain opening of the tub 22 can vary in configuration, during passage of the movable part 21b between the extracted and retracted positions.
  • Figures 7 and 9 from which it may be noted how the pipe 35 can in effect change configuration in the two aforesaid positions that can be assumed by the movable part 21a.
  • the pipe 35 can be at least in part bellows-shaped and made of an elastic material, for example an elastomer such as EPDM.
  • the auxiliary device 20 can advantageously be provided with a bistable mechanical detent, of a conception in itself known. Such a device is designated by 65 in Figure 7 .
  • the auxiliary device 20 is preferably provided with a sensor means, such as a microswitch, for detecting whether the movable drawer part 21b is in its completely retracted position in order to enable or inhibit electrical supply of the device 20 accordingly.
  • the bearing structure 21 of the auxiliary device 20 can be configured for installation in the upper part of the cabinet 11 of the main machine 10.
  • the overall structure of the device 20 can be similar to the one already illustrated and described previously.
  • the body 27 defining the tub 22, and the other components associated thereto can be carried by a stationary part 21a of the structure, whilst the sprinkler member 30 belongs to the movable part 21b of the structure itself.
  • the sprinkler member 30, or the body that integrates or supports it is rotatable about a substantially horizontal axis between a lowered position and a raised position, illustrated in the figures.
  • the sprinkler member 30 (and the possible other movable part of structure that integrates it) is substantially configured as a top lid of the auxiliary device 20, in a way similar to a top-loading laundry washing machine.
  • a gasket 30d associated to the member 30 is a gasket 30d, designed to provide tightness with respect to the body 27 when the member itself is in the lowered position (it should be noted that a similar gasket, preferably a lip gasket, is provided also in the case where the member 30 is stationary and the part 21b is configured like a drawer - see the reference 30d in Figure 6 ).
  • the ducts connected to the inlets 30a and 30b of the sprinkler member 30 preferably have at least one flexible portion in order to enable the necessary angular movement of the sprinkler member 30.
  • the diverting device 50 will be supported by the stationary part of the load-bearing structure of the device 20; however, not excluded is an installation thereof on the movable part.
  • a microswitch or the like can be provided to detect the position of the movable part represented by the member 30 and enable or inhibit electrical supply of the device 20 accordingly.
  • the auxiliary device 20 is provided with at least one dispenser of a washing agent, such as a detergent or an additive.
  • the body 27 defining the tub 22 integrates at least one receptacle.
  • two of said receptacles are shown, basically constituted by spaces or compartments, designated by 70 in Figures 5 , 8 and 11 , which extend in a radial direction with respect to the peripheral profile of the tub 22.
  • the spaces 70 are defined directly by the body 27 at the peripheral wall 27b of the tub 22, which are open at the top and closed at the front - i.e., delimited with respect to the volume for containment of the items to be treated - by a wall 71.
  • said wall 71 is configured as component distinct from the tub body and is mounted in a corresponding rectilinear guide 70a of the spaces 70 ( Figure 11 ) so that it can be removed manually by a user, for example for cleaning purposes.
  • the wall 71 (visible in detail in Figure 12 ) is provided with a corresponding top gripping means or grip 72.
  • the movable wall 71 then has an array of through holes or openings 73.
  • a series of notches or recesses 74 is provided at at least one edge of the wall 71, in particular at its bottom edge 71a.
  • the wall 71 when the wall 71 is in its normal operative position, i.e., it is inserted in the corresponding guide 70a, its bottom edge 71a is substantially set resting on a bottom wall of the notch 70 (partially visible in Figure 11 , where it is designated by 70b). Within the space 70 there can then be introduced a dose of detergent in powder or tablet form (or also a liquid washing agent, with a different shape of the wall 71), when the tub 22 is accessible.
  • a dose of detergent in powder or tablet form or also a liquid washing agent, with a different shape of the wall 71
  • the space 70 can be pre-arranged in such a way that its volume corresponds substantially to a recommended dose of a corresponding washing agent in bulk form, such as a detergent in powder or liquid form.
  • a corresponding washing agent in bulk form
  • at least one of the walls that delimit the space 70 carries, for this purpose, on a visible surface thereof, one or more level reference marks, aimed at facilitating the user in dosing the washing agent.
  • the wall 71 in particular in its face that is to face the inside of the space 70, has a reference mark 71b indicating the recommended level for the washing agent (here soap powder).
  • the wall 71 can also be made of transparent material so that the reference mark 71b can be provided on its surface outside the space 70.
  • the internal channel 30c of the sprinkler member 30 preferably has one or more additional nozzles or openings, designated by 60a in Figures 7 and 10 , which are not positioned above the upper opening of the tub 22, but above the compartment 70 or compartments 70 provided. Thanks to these additional openings 60a, which may possibly have a diameter greater than that of the openings 60, there can be obtained a first dissolution or mixing of the washing agent in the liquid introduced. As may be appreciated, in this way, the water can reach the inside of the space 70 and mix with the detergent and/or dissolve it, with the mixture of water and washing agent that can then flow towards the inside of the tub 22 via the notches 74 and/or the holes 73.
  • the sprinkler member 30 can comprise a single internal channel, belonging to which are both the openings 60 and the openings 60a, in which case a first removal of the washing agent from the space 70 is obtained during intake of water from the mains supply, via the duct 31, and a second removal is obtained when the pump 40 and the deflector member 50 operate in the liquid-recirculation mode.
  • the member 30 are at least two distinct channels, one of which is fed through the inlet 30a and the other is fed through the inlet 30b.
  • Such a case is exemplified in Figures 13 and 14 , where the two aforesaid channels are designated by 30c' and 30c".
  • a part of the member 30 of Figure 14 is represented in see-through view in order to highlight the two aforesaid channels.
  • Figures 13 and 14 highlight also a possible variant for the orientation of the inlets 30a and 30b, here set substantially orthogonal to the body of the member 30.
  • the water introduced via the duct 31 flows in the channel 30c' and then comes out of the corresponding openings 60 being rain-sprinkled into the tub 22.
  • the duct 32 is supplied, and then the second channel 30c", which proceeds with the rain-sprinkling of the articles to be treated.
  • auxiliary openings 60a can be provided for the purposes of removal of a washing agent contained in a respective space 70.
  • the channel 30c' can be provided with just the openings 60a, in such a way that the water introduced via the duct 31 into the channel 30c' can drop in a corresponding space 70 containing a washing agent, with the mixture of water and washing agent that then reaches the inside of the tub 22.
  • the duct 32 is supplied, and then the channel 30c" inside the device 30, which carries out rain-like sprinkling of the articles to be treated.
  • the additional openings 60a are supplied together with some of the openings 60 only during recirculation of the washing liquid.
  • the water coming from the mains supply through the duct 31 then reaches the inside of the tub 22 via holes 60 of a first channel 30c' inside the sprinkler member 30, without passing through the space 70.
  • This can be followed by a first step of agitation of the articles to be washed, by means of the agitator member 23 (a sort of soaking in the absence of detergent).
  • the second channel 30c" inside the member 30 is supplied, which includes both openings 60 for enabling rain-sprinkling of the articles to be washed and additional openings 60a for enabling removal of the washing agent from a corresponding space 70.
  • a number of doses of one and the same washing agent may be used, or else a number of different washing agents, such as a detergent and an additive (for example, a whitening agent),
  • the doses or the various washing agents can be taken in at different times of the treatment program.
  • a first dose or the detergent may be taken in from a first space 70 upon intake of water into the tub, via at least one opening 60a in fluid communication with a channel 30c' inside the sprinkler member 30 that is supplied via the duct 31.
  • the pump 40 and the diverting member 50 are actuated in the recirculation mode, with the water that thus reaches a second channel 30c" inside the sprinkler member 30, supplied via the duct 32.
  • Said second channel envisages at least one opening 60a at the second space 70, which contains the second dose of detergent or the additive, which is thus removed.
  • the bottom 70b of the spaces 70 is at a level or height higher than the agitator member 30 and the bottom of the tub 22.
  • the bottom 70b of a single space 70 could be set further down, or at a height lower than the minimum level of liquid normally present in the tub 22.
  • no openings 60a are necessary for said space, with entry of the liquid into the compartment itself that takes place from below, through the notches 74 and the holes 73.
  • Actuation of the agitator member 23, and hence agitation also of the washing bath guarantees flows entering and leaving the space 70, with removal of the detergent.
  • Said second space will have the corresponding bottom 70a at a height greater than the aforesaid minimum level, to enable at a subsequent time intake of the washing agent contained therein, for example following upon starting of the recirculation step, in a way similar to the case described previously.
  • the rain-like sprinkling enabled by the sprinkler member 30, albeit extremely advantageous, is not indispensable for the purposes of implementation of the invention, given that the sprinkler member could be replaced by a body defining a channel with one or more outlets 60a open only above a corresponding space 70, for intake of the washing agent.
  • a channel for introducing the water into a compartment 70 could be defined or associated to the tub body.
  • an electrically controllable diverter for feeding in a selective way the liquid to the tub or else to a channel for supply of a space 70, not necessarily provided in a sprinkler member of the type described above.
  • the auxiliary device according to the invention can advantageously be provided with at least one dispenser, including a space or receptacle in which the user can previously introduce a desired amount of washing agent for execution of a subsequent treatment cycle.
  • the aforesaid receptacle functions as flow decelerator, irrespective of whether it is fed from above or from beneath, enabling formation of the mixture of water and washing agent in a more gradual way as compared to known solutions, with a reduced risk of formation of foam.
  • a number of spaces 70 it is moreover possible to obtain intake of a number of doses of one and the same washing agent, or of different washing agents, at subsequent times of one and the same treatment cycle.
  • the tub 22, and hence a space 70 can belong to the movable part of structure ( Figures 3-9 ) or else to the fixed part of structure ( Figure 10 ) of the auxiliary device 20, with the channel that conveys the liquid into the space itself that is located, instead, in the fixed part or in the movable part of the structure, respectively.
  • the auxiliary device 20 can envisage even more than one treatment step, each comprising delivery of the washing liquid into the tub, a step of recirculation of the washing liquid with agitation of the articles to be treated, and a final drainage step.
  • steps of washing in a strict sense and rinsing steps there can thus be envisaged, for example, steps of washing in a strict sense and rinsing steps.
  • the auxiliary device 20 is provided with a control circuit of its own, constituted, for example, by an electronic board designed to manage all the electrical loads of the device itself, such as the motor 36, the pump 40, the diverter device 50, and the means for heating the washing liquid that may be provided.
  • These heating means can, for example, be integrated in the pump 40, according to a technology known, for example, in the sector of dish-washers, or else comprises one or more resistors in the form of films or serigraphs applied directly on the internal surface of the tub 22 (for example, on the surface of the bottom 27a of the body 27, which forms the tub), or else again envisage a cartridge heater set between the agitator member 23 and the body 27 defining the tub 22.
  • the heater is designated by 75 - the body 27 has a lower area in which the heater 75 remains immersed during operation of the auxiliary device 20.
  • control circuit of the auxiliary device 20 preferably also comprises a micro-switch or the like, designated by 76 in Figure 13 , designed to detect the displacement of the movable part of the structure from the retracted (or lowered) position to the extracted (or raised) position in order to interrupt supply of the aforesaid electrical loads accordingly, for obvious reasons of safety.
  • Figure 15 illustrates one of the possible modalities of connection of the auxiliary device 20, in combination with a main machine purposely configured.
  • This figure is a schematic representation of the main machine 10, with the corresponding cabinet 11, present inside which is a washing tub 80, rotatably housing a corresponding laundry drum.
  • the circuit arrangement 81 supervises operation of all the electrical loads inside the main machine 10, and stored therein are the programs for management of operation of the machine itself.
  • the circuit arrangement 81 of the machine 10 is also provided for interacting with a circuit arrangement 82 on board the auxiliary device 20, also in order to provide the latter with adequate electrical supply both in voltage and in current.
  • circuit arrangement 82 consists, for example, of a microprocessor electronic board, which controls, as has already been said, the electrical loads inside the auxiliary device 20 (in the previous figures said control board has not been represented for simplicity; said board 82 is in any case conveniently fixed to the stationary part of the structure of the auxiliary device 20, for example on the back thereof).
  • the circuit arrangements 81 and 82 are connected together by means of a communication line 83 in such a way that operation of the main machine 10 and of the auxiliary device 20 - or of at least some of the respective internal electrical loads - can be co-ordinated, as will be explained hereinafter.
  • the circuit arrangements 81 and 82 are pre-arranged in such a way that the user interface 12 of the main machine 10 can be used for turning on the auxiliary device 20 and setting the cycle or cycles of treatment that can be carried out by the device itself, without the latter having to be provided with a user interface of its own.
  • a dedicated interface for the auxiliary device 20 may be in any case envisaged, in variant embodiments of the invention, in which the arrangements 81 and 82 are not necessarily connected together.
  • a water-supply source for example a domestic drinking-water mains
  • D a sewer system
  • the main machine 10 is connected to the water mains W via a supply pipe union 84, set at the end of which are two solenoid valves 85a and 85b, in parallel to each another, which can be controlled by the circuit arrangement 81 for diverting the flow of water at inlet towards a dispenser of washing agents 86 and then towards the tub 80 of the main machine 10, by means of a duct 87, or else towards the duct 31 for supply of the auxiliary device 20.
  • Designated by 88 is a pump for draining the main machine 10, the intake branch 88a of which is connected to a drain opening of the tub 80.
  • the delivery branch 88b of the pump 88 is, instead, connected to the first inlet of a drain pipe union 89, the second inlet of which is connected to the drain pipe 33 of the auxiliary device 20, the outlet of the pipe union 89 being, instead, connected to the sewer system D.
  • set upstream of each of the inlets of the pipe union 89 is a non-return valve 90a and 90b, respectively, of a conception in itself known. It should be noted that the non-return valve 90a is not strictly necessary, when the main machine 10 is provided with a device for closing the outlet of the tub, in itself known (for example, of the type described in EP-A-238570 ).
  • a user loads the items to be washed into the drum contained in the tub 80, according to modalities in themselves known and the washing agent or agents into the dispenser 96; via the user interface 12 the user chooses the washing program with the possible options associated thereto (temperature, spin-drying rate, suppression of rinses, etc.).
  • the circuit arrangement 81 governs opening of the valve 85a in such a way that the tub 80 will be charged with the water coming from the mains supply W, through the duct 87 and the dispenser 86, in the desired amount (for example, detected via a pressure switch), according to modalities in themselves known, after which the valve 95a closes.
  • the washing cycle of the main machine 10 proceeds with modalities in themselves known.
  • the circuit arrangement 81 then governs activation of the pump 88 to evacuate the washing liquid to the sewer system D.
  • the main machine 10 in the case where the user wishes to use the auxiliary device 20, also the main machine 10 must be turned on, thus providing also supply to the auxiliary device 20.
  • the user can set the desired treatment cycle for the auxiliary device 20 via the user interface 12 of the main machine 10.
  • the user loads the items to be treated, for example shoes, into the tub 22 of the auxiliary device 20, as well as the washing agent or agents into the dedicated space or spaces 70; the user can then close the movable drawer part 21b. Said closing is detected via the micro-switch 76 referred to previously, which thus enables electrical supply of the auxiliary device 20.
  • the user can then start the treatment cycle via the user interface 12.
  • This start causes, by the circuit arrangement 82 (or else by the circuit arrangement 81) opening of the valve 85b, in such a way that the water at inlet from the pipe union 84 can traverse the duct 31, and then reach the washing tub 22 of the auxiliary device 20.
  • the circuit arrangement 82 causes directly or, via the circuit arrangement 81, closing of the valve 85b and subsequently governs the electrical loads of interest of the auxiliary device 20, for example the motor 36 that actuates the agitator member 23, the pump 40, and the diverter 50, so as to obtain the aforementioned recirculation of liquid through the tub 22 (in said step, also the possible heating means for the washing liquid, controlled, for example, by means of a temperature sensor, are supplied).
  • the circuit arrangement 82 governs the diverting device 50 and then activation of the pump 40, which thus operates in the discharge mode to evacuate the washing liquid from the tub 22, via the ducts 35 and 33.
  • the steps referred to above are carried out for each step of the treatment cycle envisaged. Intake of the washing agent or agents can take place, for example, according to one of the modalities described previously.
  • the motor 36 of the auxiliary device 20 - a low power motor - is designed to produce rotation of the agitator member 23 at a relatively low speed, around 15-25 r.p.m., according to the washing program selected by the user.
  • the tub 22 is preferably sized for containing an amount of articles indicatively comprised between 1.5 and 2.5 kg and the overall water consumption for a complete treatment cycle may be around 15-20 1 for a washing treatment (to which there is to be added the possible other amount necessary for the rinsing treatment).
  • the washing action is obtained via a mechanical agitation of the articles to be treated, obtained via the agitator member 23 provided with its surface ribbings 23a, with the concomitant rain-like sprinkling provided via the sprinkler member 30 and the pump 40.
  • the member designed to carry out sprinkling of the washing liquid on the articles contained in the tub 22 can be of a rotary type, i.e., of a conception substantially resembling that of sprinkler members provided on dish-washers.
  • a rotary type i.e., of a conception substantially resembling that of sprinkler members provided on dish-washers.
  • an upper wall will be provided, fixed or hinged, rotatably associated to which is the aforesaid rotary sprinkler; at least one internal channel of the latter will be in fluid communication with the ducts previously designated by 31 and 32.
  • one or more nozzles of the rotary sprinkler may be positioned and/or oriented in such a way that, during rotation of the sprinkler, the corresponding outlet jet reaches the inside of a corresponding space 70.
  • a valve that carries out the functions of the valve previously designated by 85b can be provided along the duct 31, with the latter that can be directly connected to a water-supply source W, and with the drain duct 33 that can be directly connected to the sewer system D.
  • the liquid that is to feed the auxiliary device 20 does not come directly from the mains supply W, but is a liquid already used on the main machine 10, such as, for example, the water used for carrying out the last rinsing step envisaged in a treatment cycle carried out by the main machine 10.
  • the water via which a washing or rinsing treatment has been carried out in the auxiliary device 20 could be stored in a tank, instead of being discharged, so that it can be reused in a subsequent washing treatment in the main machine 10 or in the auxiliary device 20.
  • the space 70 is designed for containment of a washing agent in powder or tablet form, but, as has been said, said compartment can be used for loading a liquid washing agent, such as a liquid detergent or a bleaching agent.
  • a liquid washing agent such as a liquid detergent or a bleaching agent.
  • the wall 71 could be mounted fixed in a fluid-tight way, or else provided with a gasket designed to provide fluid-tightness with respect to the corresponding seat 70a.
  • the wall 71 may be without the holes 73 and the notches 74, envisaging, instead, in its lower part, a single outlet provided with siphon that gives out into the tub 22 in such a way that dispensing of the washing agent will take place when a certain level of liquid is reached in the space 70.
  • an overflow dispensing mode i.e., with a series of holes 73 provided in an intermediate area of the wall in such a way that the mixture constituted by water and washing agent can overflow into the tub 22 when the mixture itself in the space 70 exceeds the level corresponding to the aforesaid holes.
  • Another possibility is to associate removably to the space 70 a basin designed for containment of the liquid washing agent, also functioning as a dosing implement, provided at the bottom with the outlet opening equipped with siphon.

Landscapes

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

Claims (13)

  1. Zusatzwaschvorrichtung (20) aufweisend eine tragende Struktur (21) die vorbereitet ist mit dem Gehäuse (11) einer Hauptmaschine zur Behandlung textiler Gegenstände (10) befestigt zu werden, umfassend
    - Steuermittel (82),
    - eine Wanne (22), die in der tragenden Struktur (21) getragen wird und eine Bodenwand (27a) und eine Umfangswand (27b) umfasst,
    - einen Rührer (23), der beweglich in der Wanne (22) angebracht ist, um zu behandelnde Gegenstände zu rühren,
    - Antriebsmittel (36) zum Antreiben des Rührers (23)
    - einen ersten Kanal (31) zum Liefern von Waschflüssigkeit in die Wanne (22),
    - eine Pumpe (40), die einen Einlassbereich (41), der in fluidischer Verbindung mit einer Abflussöffnung (22a) der Wanne (22) steht, und einen Auslassbereich (42), der in fluidischer Verbindung mit einem Abflusskanal (33) ist, aufweist,
    wobei die tragende Struktur (21) einen feststehenden Teil (21a) und einen beweglichen Teil (21b) umfasst, wobei der bewegliche Teil (21b) verfahrbar gegenüber dem feststehenden Teil (21a) ist, um einen Zugang zur Wanne (22) zu ermöglichen,
    wobei die Antriebsmittel (36) und die Pumpe (40) durch die Steuermittel (82) zum Zwecke des Ausführens mindestens eines Behandlungszyklusses, der durch die Zusatzvorrichtung (20) ausgeführt werden kann, zu kontrollieren,
    gekennzeichnet durch mindestens einen Waschmittelspender, der einen Raum (70) umfasst, der zumindest teilweise in der Umfangswand (27b) der Wanne (22) definiert ist, wobei der Raum (70) an seiner Oberseite offen ist und in fluidischer Verbindung mit der Innenseite der Wanne (22) steht.
  2. Zusatzwaschvorrichtung nach Anspruch 1, wobei der Raum (70) sich im Wesentlichen in radialer Richtung im Hinblick auf ein Gesamtprofil der Umfangswand (27) der Wanne (22) erstreckt, wobei das Profil insbesondere im Wesentlichen zylindrisch ist.
  3. Zusatzwaschvorrichtung nach einem der Ansprüche 1 oder 2, wobei der Raum (70) an seiner Vorderseite, die in Richtung auf die Innenseite der Wanne (22) gerichtet ist, mittels einer Vorderwand (71) geschlossen ist, die mindestens eines definiert von:
    - einer oder mehrerer Durchgangsöffnungen (73),
    - einer oder mehrerer Nuten (74) am Rand (71a) der Vorderwand (71),
    - einer Passage mit der ein Siphon verbunden ist,
    - einen Überlauf.
  4. Zusatzwaschvorrichtung nach Anspruch 3, wobei die Vorderwand (71) entfernbar an dem Körper (27), der die Wanne (22) definiert, angebracht ist.
  5. Zusatzwaschvorrichtung nach einem der Ansprüche 1 bis 4, die Zuführmittel (30, 40, 50) zum Zuführen von Waschflüssigkeit in die Innenseite des Raums (70) umfasst, wobei die Zuführmittel (30, 40, 50) ein Rohr (30c, 30c', 30c") umfassen, das mindestens einen Auslass (60a), der oberhalb dem Raum (70) angesetzt und beabstandet davon ist, aufweist.
  6. Zusatzwaschvorrichtung nach einem der Ansprüche 1 bis 5, umfassend einen Sprinkler (30), der einen Körper aufweist, der sich oberhalb der Wanne (22) erstreckt und mit mindestens einem Kanal (30c, 30c") bereitgestellt ist, der ein oder mehrere Auslassöffnungen (60, 60a) für die Waschflüssigkeit aufweist.
  7. Zusatzwaschvorrichtung nach einem der Ansprüche 1 bis 6, umfassend eine Umleitungsvorrichtung (50), die funktional zwischen dem Auslassbereich (42) der Pumpe (40) und dem Abflusskanal (33) zwischengeschaltet ist, die Umleitungsvorrichtung (50) einen Einlass (51) aufweist, der in fluidischer Verbindung (52) mit dem Auslassbereich (42) der Pumpe (40) steht, einen ersten Auslass (53), der in fluidischer Verbindung mit einem zweiten Kanal (32) zum Zuführen von Waschflüssigkeit in die Wanne (22) steht, und einen zweiten Auslass (54) der in fludischer Verbindung mit dem Abflusskanal (33) steht, wobei die Umleitungsvorrichtung (50) durch die Steuermittel (82) steuerbar ist, um eine erste Position und eine zweite Position anzunehmen, in denen entsprechend Waschflüssigkeit, die die Abflussöffnung (42) der Pumpe (40) verlässt, in Richtung auf die Wanne (22) durch den ersten Auslass (53) und den zweiten Kanal (32) geleitet wird oder in Richtung auf den Abflusskanal (33) durch den zweiten Auslass (54) geleitet wird, die Steuermittel (82) vorbereitet sind, die Umleitungsvorrichtung (50) zu steuern, um die erste Position in mindestens einem Wasch- oder Spühlschritt des Behandlungszyklusses, um eine Zirkulation der Waschflüssigkeit in der Wanne (22) durch die Pumpe (40) zu verursachen, und um die zweite Position in mindestens einem Abflussschritt des Behandlungszyklusses, um einen Abfluss des Waschmittels aus der Wanne (22) durch die Pumpe (40) zu verursachen, bereitzustellen
  8. Zusatzwaschvorrichtung nach Ansprüchen 6 und 7, wobei der mindestens eine Kanal (30c, 30c', 30c") des Sprinklers (30) einen Einlass (30a, 30b) aufweist, der in fluidischer Verbindung mit zumindest einem von dem ersten Kanal (31) und dem zweiten Kanal (32) steht.
  9. Zusatzwaschvorrichtung nach einem der Ansprüche 6 bis 8, wobei der mindestens eine Kanal (30c, 30c', 30c") des Sprinklers (30) mehrere Auslassöffnungen (60) oberhalb der Wanne (22) aufweist um eine im Wesentlichen regenartige Sprengung mit Waschflüssigkeit auf die zu behandelnden Gegenstände zu verursachen.
  10. Zusatzwaschvorrichtung nach Anspruch 8, wobei
    - der Kanal (30c) des Sprinklers (30) einen ersten Einlass (30a) und einen zweiten Einlass (30b) aufweist, die entsprechend in fluidischer Verbindung mit einem ersten Kanal (31) und einem zweiten Kanal (32) stehen oder ansonsten
    - in dem Körper des Sprinklers (30) mindestens zwei Kanäle (30c', 30c") definiert sind, wobei jeder Kanal einen entsprechenden Einlass (30a, 30b) aufweist, wobei der Einlass (30a) des ersten Kanals (30c`) in fluidischer Verbindung mit dem ersten Kanal (31) und der Einlass (30b) des zweiten Kanals (30c") in fluidischer Verbindung mit dem zweiten Kanal (32) steht.
  11. Zusatzwaschvorrichtung nach den Ansprüchen 5 und 6, wobei die Zuführmittel den Sprinkler (30) umfassen und der mindestens eine Kanal (30c, 30c', 30c") das Rohr bildet und der mindestens eine Auslass mindestens eine der Auslassöffnungen (60a) umfasst.
  12. Zusatzwaschvorrichtung nach einem der Ansprüche 1 bis 11, umfassend mehrere Waschmittelspender, wobei jeder davon einen entsprechenden Raum (70) umfasst.
  13. Einrichtung zum Behandeln textiler Gegenstände umfassend:
    - eine Hauptmaschine (10) zum Behandeln textiler Gegenstände, die von einer Wäschewaschmaschine, einem Wäschetrockner und einer Wäschewasch- und Trockenmaschine ausgewählt ist, wobei die Hauptmaschine (10) ein Gehäuse (11) aufweist,
    - eine Zusatzwaschvorrichtung (20) nach einem der Ansprüche 1 bis 12,
    - ein Steuersystem (81, 82), dass eine Benutzerschnittstelle (12) umfasst, wobei die Antriebsmittel (36) und die Pumpe (40) der Zusatzwaschvorrichtung (20) durch das Steuersystem (81, 82) zum Zwecke des Ausführens mindestens eines Behandlungszyklusses, der durch die Zusatzvorrichtung (20) ausgeführt werden und das durch die Mittel der Benutzerschnittstelle (12) ausgewählt werden kann, steuerbar ist.
EP15168217.6A 2011-05-02 2012-04-30 Vorrichtung zur behandlung von textilien und hilfswaschvorrichtung Active EP2949801B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT000382A ITTO20110382A1 (it) 2011-05-02 2011-05-02 Apparato per il trattamento di capi tessili e dispositivo ausiliario di lavaggio per un tale apparato
IT000380A ITTO20110380A1 (it) 2011-05-02 2011-05-02 Apparato per il trattamento di capi tessili
EP12729201.9A EP2705187B1 (de) 2011-05-02 2012-04-30 Vorrichtung zur behandlung von textilien und hilfswaschvorrichtung

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KR20150025083A (ko) 2013-08-28 2015-03-10 엘지전자 주식회사 의류처리장치
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WO2012150539A3 (en) 2012-12-27
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EP2705187A2 (de) 2014-03-12
EP2705187B1 (de) 2016-02-24

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