EP2610403B1 - Regeneration device for regenerating a water decalcification unit of an ironing apparatus and relative regeneration method - Google Patents

Regeneration device for regenerating a water decalcification unit of an ironing apparatus and relative regeneration method Download PDF

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Publication number
EP2610403B1
EP2610403B1 EP12183366.9A EP12183366A EP2610403B1 EP 2610403 B1 EP2610403 B1 EP 2610403B1 EP 12183366 A EP12183366 A EP 12183366A EP 2610403 B1 EP2610403 B1 EP 2610403B1
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EP
European Patent Office
Prior art keywords
water
boiler
compartment
operating position
cartridge
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
EP12183366.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2610403A1 (en
Inventor
Giuseppe De' Longhi
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.)
De Longhi Appliances SRL
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De Longhi Appliances SRL
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Publication of EP2610403A1 publication Critical patent/EP2610403A1/en
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    • 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
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/12—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water supplied to the iron from an external source
    • 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
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • 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
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • 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
    • D06F79/00—Accessories for hand irons

Definitions

  • the present invention concerns a device and a method for the regeneration of a water decalcification unit, suitable to be used in a steam ironing apparatus to prevent the water used to generate the steam needed for ironing from causing the formation of limescale inside the ironing apparatus, above all inside the boiler.
  • WO 2009/030633 A1 discloses a water decalcification method and unit with the features of the preamble of the main claims.
  • known ironing apparatuses are associated with, or include, a water decalcification unit, which uses a resin filter of the regenerable type, interposed between the water tank and the boiler.
  • a device for the regeneration of a water decalcification unit, which is integrated in a steam ironing apparatus and is able to regenerate a filter containing a resin of the regenerable type interposed between the water tank and the pump which feeds the boiler.
  • the known regeneration device comprises a single container divided into two parts, one of which makes up the water tank, while the other part contains a regenerating solution with a citric acid base; two valves are disposed at the exit of the two parts of the container and a hydraulic circuit connects both the valves to the resin filter.
  • a third valve of the three way type, is disposed between the pump and the boiler, with the function of allowing either the water to pass normally from the tank to the boiler, during ironing, or to make the solution with an acid base circulate in the regenerable resin filter, taking it from the second part of the container and then conveying it again inside the latter, during the regeneration step.
  • Another method to regenerate a resin filter is also known, which provides to remove the decalcification unit from the ironing apparatus during the necessary regeneration operations.
  • This known method however, has the disadvantage that it is complex for users to carry out the necessary disassembling, reassembling and handling of the parts which make up the regeneration device.
  • Purpose of the present invention is to obtain a regeneration device to regenerate a water decalcification unit of ironing apparatuses, which uses a resin filter of the regenerable type, which is simple and reliable and which allows the user to easily carry out, without any danger, all the necessary operations to regenerate the filter, without needing to remove the filter from the ironing apparatus.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • a regeneration device is suitable to regenerate, in a totally new and original way, a water decalcification unit, provided with at least an anti-limescale filter, of the regenerable type, for example with resin, and associated with an ironing apparatus, having at least a tank for water, connected to the anti-limescale filter, and a boiler to transform the water into steam.
  • the regeneration device comprises a compartment, into which a cartridge is suitable to be inserted, for example of the syringe-type, containing a regenerating liquid, and a drainage unit associated at least with the anti-limescale filter and with the boiler.
  • the drainage unit is able to be selectively activated to assume a first operating position, in which the cartridge cannot be inserted into the corresponding compartment and the anti-limescale filter is in hydraulic communication with the boiler to supply decalcified water to the latter from the water decalcification unit, and, alternatively, a second operating position, in which the cartridge can be inserted into the corresponding compartment, so that the regenerating liquid can be conveyed toward the anti-limescale filter, and in which the hydraulic communication between the anti-limescale filter and the boiler is interrupted.
  • the drainage unit comprises a distributor valve provided with an internal chamber which is in hydraulic communication at least with the anti-limescale filter, by means of an inlet pipe, and with the boiler by means of an outlet pipe.
  • the distributor valve is also in communication with a drainage pipe.
  • the distributor valve comprises a stopper element, hollow in the center and coaxially solid with a shaft provided with a through axial cavity, which is constantly in hydraulic communication with the drainage pipe.
  • the stopper element is suitable to selectively close the entrance of the through axial cavity, or that of the outlet pipe toward the boiler.
  • clamping means which for example comprise a tongue solid with the shaft of the distributor valve, are suitable to selectively enter, at least partly, inside the compartment when the drainage unit is in the first operating position.
  • actuation means manual or automated, are associated with the drainage unit to cause it to pass from the first operating position to the second operating position and vice versa.
  • the regeneration method according to the present invention allows to regenerate, in a completely new and original way, a water decalcification unit of an ironing apparatus of the type described above, by means of at least an actuation step in which a drainage unit, associated at least with an anti-limescale filter of the regenerable type and with a boiler, is actuated to pass from a first operating position, in which the anti-limescale filter is in hydraulic communication with the boiler in order to decalcify the water during ironing, to a second operating position, in which a cartridge containing a regenerating liquid is inserted into a corresponding compartment associated with the anti-limescale filter, so that the regenerating liquid is conveyed toward the anti-limescale filter, and in which the hydraulic communication between the anti-limescale filter and the boiler is simultaneously interrupted.
  • a regeneration device 10 is installed on an ironing apparatus 12, provided with a water decalcification unit 13, having a regenerable anti-limescale filter 15 ( fig. 3 ), of the known type, with a resin base for example.
  • the ironing apparatus 12 ( fig. 1 ) is also substantially of the known type, for example of the type which comprises a support structure 16, shaped so as to have a seating 17, into which a tank 19 for the water is suitable to be removably inserted, a pump 20, a boiler 21 suitable to heat the water and transform it into steam, an iron 22 and a cable 23, for example of the type which allows both the electric current and also the steam to pass, in a suitable pipe.
  • the tank 19 is in hydraulic communication with the water decalcification unit 13 by means of a feed pipe 25 ( figs. 1 and 4 ), in which a non-return valve 26 is disposed ( fig. 4 ), which prevents the water from flowing back from the decalcification unit 13 to the tank 19 ( fig. 1 ).
  • the regeneration device 10 comprises a compartment 27 ( figs. 1 , 3 and 4 ), substantially cylindrical, made in the water decalcification unit 13, below the seating 17 for the tank 19, and into which a cartridge 28 of the syringe type ( figs. 2 , 6 and 7 ) is suitable to be inserted, as will be described in detail hereafter.
  • the regeneration device 10 also comprises a drainage unit 30 ( figs. 3 and 4 ), which is in hydraulic communication with the anti-limescale filter 15 of the water decalcification unit 13, by means of an inlet pipe 31, and with the pump 20 and the boiler 21, by means of an outlet pipe 32 ( figs. 1 , 3 and 4 ).
  • the drainage unit 30 comprises a distributor valve 33 ( figs. 3 to 7 ) attached on one side of the water decalcification unit 13 and able to be driven by an actuation handle 35 ( figs. 1 and from 3 to 7), to which a drainage pipe 36 is attached.
  • the distributor valve 33 comprises a cylinder 38 solid with the water decalcification unit 13 and having a cylindrical chamber 39 ( fig. 5 ) and a central tube 40.
  • a shaft 41 is disposed, sliding axially, inside the central tube 40 and is provided with a through axial cavity 42, suitable to put the chamber 39 into hydraulic communication with the drainage pipe 36.
  • a disk 45 is attached to the internal end of the shaft 41, suitable to act as a stopper element, which is hollow in the center and has its external diameter substantially equal to that of the chamber 39.
  • a first sealing ring 46 disposed on the periphery of the disk 45, guarantees the hydraulic seal of the latter with the internal surface of the chamber 39
  • a second sealing ring 47 disposed on the periphery of the shaft 41, guarantees the hydraulic seal of the latter with the internal surface of the central tube 40.
  • the actuation handle 35 is mounted coaxially on the external terminal part of the shaft 41, so as to be axially constrained to it, although able to rotate with respect to it, together with the drainage pipe 36.
  • a pin 49 is mounted on the actuation handle 35 and is inserted in an annular groove 50 of the shaft 41.
  • a substantially L-shaped tongue 51 is disposed solid to the central part of the shaft 41, and has an end 52 which is normally inserted into the compartment 27 and is suitable to be selectively extracted from it ( fig. 7 ), as will be described in detail hereafter.
  • the tongue 51 is guided in its central part by an upper appendix 53 solid with the cylinder 38.
  • the cartridge 28 ( figs. 2 , 6 and 7 ), which as we saw before is of the syringe type, comprises in this case a container 60, substantially cylindrical and open at the upper part, which is able to contain a regenerating liquid, for example a solution with a citric or acetic acid base.
  • the lower part of the container 60 is provided with a holed spout 61, from which the regenerating liquid is suitable to exit, and which, before use, is normally closed by a suitable closing element 64, of a known type, for example of the tear off type.
  • An actuation piston 62 provided at the lower part with at least a sealing ring 63, is mounted axially sliding into the container 60 in order to cause the regenerating liquid to selectively exit through the holed spout 61.
  • the cartridge 28 also comprises a safety collar 65, able to be torn open by means of a gripping ring 66, and disposed around the piston 62 in order to clamp it with respect to the container 60, by means of a tooth 67 inserted both in a slit 68 of the container 60 and also in an annular groove 69 of the piston 62. In this way the user is prevented from inadvertently driving the piston 62 and causing the regenerating liquid to exit from the container 60, before the cartridge 28 is inserted into the compartment 27.
  • the holed spout 61 is suitable to drive a ball-type valve 70, normally held in a closed position by a spring 71 and suitable to allow the selective access to a mixing zone 72 below, disposed between the feed pipe 25 and the anti-limescale filter 15.
  • the regeneration device 10 as described heretofore functions as follows.
  • the regeneration device 10 In normal ironing conditions, the regeneration device 10 is in a first operating position, shown in figs. 1 , 3 , 4 and 5 , in which the tank 19 is disposed in the seating 17 of the ironing apparatus 12 and the actuation handle 36 is substantially horizontal and thrust toward the water decalcification unit 13.
  • the disk 45 of the distributor valve 33 is close up to the innermost wall of the chamber 39 (on the left in fig. 5 ), so that the inlet pipe 31 and the outlet pipe 32 are in communication with each other through the chamber 39, while the entrance of the through axial cavity 42 is closed. Consequently, the water coming from the tank 19, after having been decalcified by the anti-limescale filter 15, can be introduced into the boiler 21 by the selective actuation of the pump 20. Moreover, in this first operating position, the end 52 of the tongue 51 is inside the compartment 27, so the insertion of a cartridge 28 therein is physically prevented.
  • the anti-limescale filter 15 When the anti-limescale filter 15 is to be regenerated, for example after a signal generated, in any known way, by the ironing apparatus 12 itself, the following operations must be carried out, which also define the regeneration method according to the present invention.
  • An actuation step of the drainage unit 30 is then carried out, pulling the actuation handle 35 toward the outside and turning it in an anti-clockwise direction by about 90° (position shown with a dotted line in fig. 1 ), so that the drainage pipe 36 which is connected to it faces with its exit downward.
  • a second operating position of the regeneration device 10 in which the shaft 41 connected to the actuation handle 35 is moved toward the outside (on the right in fig. 7 ) and the disk 45 solid with it is exactly in correspondence to the entrance of the outlet pipe 32, closing it, so that the hydraulic communication between the anti-limescale filter 15 and the boiler 21 is interrupted.
  • the inlet pipe 31 is in hydraulic communication with the drainage pipe 33, through the chamber 39 and the through axial cavity 42.
  • the tongue 51 is also moved (toward the right in fig. 7 ), with its end 52 completely outside the bulk of the compartment 27.
  • the user can then carry out a step of inserting the cartridge 28 into the compartment 27, as shown in figs. 6 and 7 , after having removed the closing element 64 ( fig. 2 ) from the holed spout 61.
  • the cartridge 28 ( fig. 7 ) is thrust downward so that its holed spout 61 moves the ball of the corresponding valve 70 downward, against the action of the spring 71, and opens access to the mixing zone 72 below.
  • the tank 19 is then returned into its seating 17, after it has been filled with water and after the drainage pipe 36 has been positioned above any collecting container, possibly provided with a discharge channel, such as a sink or similar, not shown in the drawings, in order to carry out a step of feeding the water.
  • the presence of the cartridge 28 in the compartment 27 has the advantage that it physically prevents the end 52 of the tongue 51 from entering the compartment 27, and therefore prevents the user, even inadvertently, from bringing the actuation handle 35 and the distributor valve 33 into their first operating position. Indeed, if this should occur during this regeneration step of the anti-limescale filter 15, the regenerating liquid, which contains acid, would pass through the outlet pipe 32, to the pump 20, to the boiler 21 and therefore to the iron 22, with considerable, even irreparable damage, both to many parts of the ironing apparatus 12 and also to the clothes being ironed during the regeneration step.
  • the tank 19 can be once again removed from its seating 17. During the actual regeneration step, which lasts about 30 minutes, the mixture of water and regenerating liquid is discharged through the drainage pipe 36.
  • the user can still use the ironing apparatus 12 to iron using the iron 22, possibly using the steam generated by the boiler 21 with the remaining water contained therein, at the beginning of the regeneration operations as described above.
  • the cartridge 28 is then removed from the compartment 27, and can thus be properly disposed of.
  • the actuation handle 35 is returned into the first operating position, making it rotate in a clockwise direction by about 90° and then thrusting it toward the support structure 16 of the ironing apparatus 12 ( figs. 1 , 3 , 4 and 5 ).
  • the normal ironing step can then be resumed, after having filled the tank 19 with water and having positioned it in its seating 17.
  • the distributor valve 33 and the tongue 51 associated therewith could be commanded by means of a servomechanism fed electrically,

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Treatment By Sorption (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Filtration Of Liquid (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Irons (AREA)
EP12183366.9A 2011-09-14 2012-09-06 Regeneration device for regenerating a water decalcification unit of an ironing apparatus and relative regeneration method Active EP2610403B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000144A ITUD20110144A1 (it) 2011-09-14 2011-09-14 Dispositivo di rigenerazione per rigenerare un gruppo decalcificatore dell'acqua in un'apparecchiatura stirante e relativo procedimento di rigenerazione

Publications (2)

Publication Number Publication Date
EP2610403A1 EP2610403A1 (en) 2013-07-03
EP2610403B1 true EP2610403B1 (en) 2014-11-12

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ID=45094158

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Application Number Title Priority Date Filing Date
EP12183366.9A Active EP2610403B1 (en) 2011-09-14 2012-09-06 Regeneration device for regenerating a water decalcification unit of an ironing apparatus and relative regeneration method

Country Status (4)

Country Link
EP (1) EP2610403B1 (zh)
CN (1) CN102989227B (zh)
ES (1) ES2529019T3 (zh)
IT (1) ITUD20110144A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11618992B2 (en) 2017-06-16 2023-04-04 Spectrum Brands, Inc. Steam generator with pre-heat chamber and filter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3035667B1 (fr) * 2015-04-28 2017-04-14 Seb Sa Appareil electromenager de repassage comportant un generateur de vapeur muni d'un orifice de vidange

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1187299B (it) * 1985-09-26 1987-12-23 Zanussi Elettrodomestici Lavastoviglie con addolcitore d'acqua e dispositivo di rigenerazione dello stesso
ES2291096B1 (es) * 2005-11-14 2008-11-01 Bsh Electrodomesticos España, S.A. Dispositivo de limpieza para una plancha de vapor.
ITUD20070157A1 (it) * 2007-09-06 2009-03-07 De Longhi Spa Dispositivo per decalcificare l'acqua in apparecchiature stiranti
ES2385077B1 (es) * 2008-12-23 2013-06-14 Bsh Electrodomésticos España, S.A. Dispositivo de planchado a vapor.
IT1394157B1 (it) * 2009-05-08 2012-05-25 De Longhi Appliances Srl Dispositivo per la rigenerazione di un gruppo decalcificatore dell'acqua in apparecchiature stiranti, relativo gruppo decalcificatore ed apparecchiatura stirante comprendente tale gruppo
CN201593134U (zh) * 2010-01-11 2010-09-29 东莞市新格电器有限公司 带过滤软化装置的蒸汽电熨斗
KR101181352B1 (ko) * 2010-01-25 2012-09-10 한경희 스탠드형 스팀다리미
CN102115974B (zh) * 2010-07-21 2012-08-15 周劲松 一种带超声波加湿功能的蒸汽挂烫机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11618992B2 (en) 2017-06-16 2023-04-04 Spectrum Brands, Inc. Steam generator with pre-heat chamber and filter

Also Published As

Publication number Publication date
ITUD20110144A1 (it) 2013-03-15
CN102989227A (zh) 2013-03-27
EP2610403A1 (en) 2013-07-03
ES2529019T3 (es) 2015-02-16
CN102989227B (zh) 2016-06-29

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