WO2014155310A2 - Appareil de repassage, en particulier destiné à un usage domestique - Google Patents

Appareil de repassage, en particulier destiné à un usage domestique Download PDF

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Publication number
WO2014155310A2
WO2014155310A2 PCT/IB2014/060173 IB2014060173W WO2014155310A2 WO 2014155310 A2 WO2014155310 A2 WO 2014155310A2 IB 2014060173 W IB2014060173 W IB 2014060173W WO 2014155310 A2 WO2014155310 A2 WO 2014155310A2
Authority
WO
WIPO (PCT)
Prior art keywords
filtering element
ironing appliance
ironing
iron
tank
Prior art date
Application number
PCT/IB2014/060173
Other languages
English (en)
Other versions
WO2014155310A3 (fr
Inventor
Adriano Mencarini
Andrea CAGNASSO
Original Assignee
Indesit Company S.P.A.
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 ITTO20130049 external-priority patent/ITTO20130049U1/it
Priority claimed from IT000256A external-priority patent/ITTO20130256A1/it
Application filed by Indesit Company S.P.A. filed Critical Indesit Company S.P.A.
Priority to CN201480017788.5A priority Critical patent/CN105074079A/zh
Priority to EP14722737.5A priority patent/EP3011101A2/fr
Publication of WO2014155310A2 publication Critical patent/WO2014155310A2/fr
Publication of WO2014155310A3 publication Critical patent/WO2014155310A3/fr

Links

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
    • 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
    • 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

Definitions

  • the present invention relates to an ironing appliance, in particular for household use, according to the preamble of claim 1.
  • the present invention applies to traditional ironing, in particular of textile items, within a household environment.
  • ironing appliances in particular for household use, may consist of either an iron alone or a set including a support structure and an iron, said support structure usually comprising a base acting as a support for the iron.
  • the ironing appliance When the ironing appliance is an iron, it is usually so realized as to include generator means for generating steam, in particular comprising a tank adapted to contain a liquid, generally water, said tank being associated with a filtering element for filtering said liquid.
  • generator means for generating steam in particular comprising a tank adapted to contain a liquid, generally water, said tank being associated with a filtering element for filtering said liquid.
  • the filtering element can filter mineral substances, particularly limestone, present in the liquid, which might otherwise obstruct the steam outlet holes in the iron soleplate; one example of such an iron is described in United States patent No. US5, 063,697, wherein the filtering element consists of a filter comprising ion exchange resins.
  • the irons known in the art usually also comprise a pump, positioned downstream of the filtering element, for delivering the liquid to the iron soleplate, and heating means for obtaining steam that will exit through said holes in the soleplate.
  • the generator means for generating steam are usually associated with said support structure.
  • said generator means comprise a tank adapted to contain a liquid, generally water, associated with a filtering element for filtering said liquid; in this case, in fact, limestone removal is useful to prevent both the electrovalve at the boiler outlet and the steam exit holes in the iron soleplate from becoming obstructed.
  • the support structure is connected to the iron through connecting means comprising a duct for steam transportation and a cable for supplying electric power to the iron, both of which are usually enclosed in an external protection sheath.
  • EP1616992B1 One example of such an ironing appliance is described in European patent No. EP1616992B1, wherein it comprises a filtering element, consisting of a filter comprising ion exchange resins, and a pump positioned downstream of the filtering element for delivering the liquid to the iron.
  • the known ironing appliances comprise generator means for generating steam that provide neither optimal filtration of the liquid contained in the tank nor the filtration of an adequate quantity of said liquid.
  • the filtering element may happen to get damaged during the ironing operations, in particular due to overheating.
  • the filtering element is so realized as to comprise ion exchange resins.
  • ion exchange resins a chemical reaction occurs between the mineral substances (particularly calcium carbonate) dissolved in the water and said resins; it is clear that, following a long period of use, the resins will become progressively saturated and the effectiveness of the filtering element will be heavily reduced.
  • a filtering element comprising ion exchange resins may release potentially harmful substances into the environment.
  • an ironing appliance in particular for household use, comprising generator means for generating steam, which are adapted to ensure optimal filtration of the liquid contained in the tank as well as the filtration of an adequate quantity of said liquid.
  • FIG. 1 is a perspective view of an ironing appliance, in particular for household use, according to the present invention and to a first embodiment thereof;
  • FIG. 2 is a first sectional view of a portion of the ironing appliance of Fig. 1 ;
  • FIG. 3 is a sectional view of an ironing appliance, in particular for household use, according to the present invention and to a second embodiment thereof;
  • FIG. 4 is a general diagram of the ironing appliance, in particular for household use, according to the present invention.
  • FIG. 5a and 5b show a perspective view and a partially sectional view of a component of the ironing appliance, in particular for household use, according to the present invention, said component being shown in a first and a second embodiments thereof, respectively.
  • FIG. 1 designates as a whole a first embodiment of an ironing appliance, in particular for household use, according to the present invention.
  • said ironing appliance 1 comprises an iron 10 and a support structure 20.
  • the support structure 20 comprises a base 21 adapted to provide a support surface for said iron 10, said base 21 having at least one protrusion 21 A made of heat-resistant material, in particular a plastic material; as an alternative, the whole base 21 may be made of heat-resistant material, in particular a plastic material.
  • the support structure 20 is connected to the iron 10 through connecting means 2, in particular comprising a duct for steam transportation, a cable for supplying electric power to the iron 10, and an external protection sheath adapted to contain said duct and said cable.
  • the iron 10 comprises a soleplate 11 (visible in Fig. 1), which allows performing traditional ironing operations, in particular on textile items; said soleplate 1 1 is preferably metallic and thermally conductive.
  • the iron 10 and/or the support structure 20 may further comprise selector means 3 adapted to select and/or set and/or display an ironing program and/or some operating parameters (e.g. relating to the temperature of the soleplate 11 of the iron 10) of the ironing appliance 1.
  • selector means 3 adapted to select and/or set and/or display an ironing program and/or some operating parameters (e.g. relating to the temperature of the soleplate 11 of the iron 10) of the ironing appliance 1.
  • the ironing appliance 1 comprises generator means (designated as a whole by reference numeral 30 in Fig. 2) for generating steam, said generator means 30 comprising a tank 31 adapted to contain a liquid (not shown, usually comprising water) and a filtering element 32 associated with said tank 31 for filtering said liquid.
  • generator means designated as a whole by reference numeral 30 in Fig. 2 for generating steam
  • said generator means 30 comprising a tank 31 adapted to contain a liquid (not shown, usually comprising water) and a filtering element 32 associated with said tank 31 for filtering said liquid.
  • Said generator means further comprise heating means (not shown) for heating to evaporation the water contained in an evaporation chamber 40; in particular, in the first embodiment shown in Figures 1 and 2, said evaporation chamber 40 comprises a boiler with which said heating means are preferably associated.
  • Said soleplate 11 preferably has holes (also not shown) for the exit of the generated steam.
  • said generator means 30 are associated with the support structure 20.
  • Fig. 3 shows a second embodiment of the ironing appliance according to the present invention
  • the ironing appliance ⁇ comprises an iron 10' equipped with a soleplate 1 1 ' that allows performing traditional ironing operations, in particular on textile items;
  • the soleplate 1 1 ' is preferably metallic and thermally conductive, is associated with heating means (not shown) for heating it in operation, and has holes (not shown) for the exit of the generated steam.
  • said heating means may comprise an electric resistor (not shown) associated with the soleplate 1 1 ', and steam can be generated when the liquid is in the proximity of said soleplate 11 ', e.g. when the liquid is in an evaporation chamber 40' associated with said soleplate 1 1 '. It is however clear that steam can also be generated by using heating means arranged in a different manner, and that said evaporation chamber 40' may also be positioned differently than shown in Fig. 3.
  • the ironing appliance ⁇ of Fig. 3 comprises selector means 3' adapted to select and/or set and/or display an ironing program and/or some operating parameters (e.g. relating to the temperature of the soleplate 1 1 ') of the ironing appliance ; preferably, said selector means 3' are positioned in proximity to a handle 12' of the ironing appliance 1 '.
  • selector means 3' adapted to select and/or set and/or display an ironing program and/or some operating parameters (e.g. relating to the temperature of the soleplate 1 1 ') of the ironing appliance ; preferably, said selector means 3' are positioned in proximity to a handle 12' of the ironing appliance 1 '.
  • the ironing appliance ⁇ of Fig. 3 comprises generator means (designated as a whole by reference numeral 30' in Fig. 3) for generating steam, said generator means 30' comprising a tank 3 adapted to contain a liquid (not shown, usually comprising water) and a filtering element 32' associated with said tank 31 ' for filtering said liquid.
  • generator means 30' comprising a tank 3 adapted to contain a liquid (not shown, usually comprising water) and a filtering element 32' associated with said tank 31 ' for filtering said liquid.
  • Fig. 4 shows a general diagram of the ironing appliance 1, according to the present invention.
  • FIGS 2 to 4 show that, in accordance with the present invention, the ironing appliance 1, 1 ' comprises a pump 33, 33' positioned between the tank 31 , 31 ' and the filtering element 32, 32' to take the liquid from the tank 31, 31 ' and supply it to the filtering element 32, 32'.
  • This provision allows supplying the liquid to the filtering element 32, 32' at a predetermined pressure, said pressure being preferably in the range of 1 to 5 bar and adequate to ensure the optimal operation of said filtering element 32, 32'; moreover, the particular arrangement of the pump 33, 33' allows delivering to the soleplate 1 1, 11 ' an adequate quantity of liquid for the ironing operations.
  • the ironing appliance 1 also comprises a non-return valve 34, 34', positioned downstream of the filtering element 32, 32'.
  • the non-return valve 34 is positioned between the filtering element 32 and the evaporation chamber 40, which comprises a boiler; in the ironing appliance 1 ' shown in Fig. 3, instead, the non-return valve 34' is positioned between the filtering element 32' and an evaporation chamber 40' associated with the soleplate 11 ' of the iron 10'.
  • This provision allows protecting the filtering element 32, 32' against a possible return of liquid and/or steam, thus preventing said filtering element 32, 32' from suffering any damage.
  • the ironing appliance 1 according to the first embodiment shown in Figures 1 and 2 comprises an electrovalve 41 for adjusting the steam flow towards the iron 10, in particular said electrovalve 41 being associated with an outlet of the evaporation chamber 40.
  • the annexed drawings also show that the ironing appliance 1, according to the present invention comprises:
  • the ironing appliance 1 preferably comprises a fifth duct 35E for connecting said electrovalve 41 to the iron 10, in particular said fifth duct 35E being connected to said connecting means 2. It is clear that, as an alternative, the ironing appliance 1 according to the first embodiment may also be designed in a manner such that said electrovalve 41 is directly connected to said connecting means 2.
  • said filtering element 32; 32' comprises a filter 32F; 32F' made of polymeric material, in particular polysulfone, which is adapted to ensure ultrafiltration of the liquid contained in said tank 31 ; 3 ⁇ as it flows through said filter 32F, 32F'.
  • said polysulfone filter 32F, 32F' comprises a plurality of hollow capillary fibres, in particular obtained by extrusion; in particular, each hollow capillary fibre has a diameter comprised between 200 and 300 ⁇ , with a surface having pores whose size is comprised between 0.001 and 0.030 ⁇ .
  • the particular provisions of the present invention allow to provide an ironing appliance 1, ⁇ , in particular for household use, comprising a filtering element 32, 32' designed to ensure a longer service life.
  • the filtering element 32, 32' since the filtering element 32, 32' does not require frequent replacement, the maintenance and operating costs of the ironing appliance 1, 1 ' can be lowered.
  • the peculiar realization of the filtering element 32, 32' according to the present invention also allows to provide an ironing appliance 1, 1 ' which is not bulky (since it does not require the use of a bigger filtering element 32, 32') and which does not cause any problems in regard to the positioning of the whole ironing appliance 1, 1 '.
  • the special realization of the filtering element 32, 32' is such as to keep its filtering efficiency substantially unchanged even after a long period of use, while at the same time not releasing any potentially harmful substances into the environment.
  • the filtering element 32' is preferably located in the iron 10' in a remote position with respect to the soleplate 11 '; in particular, said filtering element 32' is preferably positioned in a manner such that its orthogonal projection PO on a worktop P falls outside said soleplate 1 1 ' when said soleplate 1 1 ' is resting on said worktop P.
  • the filtering element 32' is preferably positioned in the proximity of a rear portion 10A' of the iron 10', in particular said filtering element 32' being positioned over an arched portion 13' between the soleplate 1 1 ' and the rear portion 10A' of the iron 10'.
  • the filtering element 32' Thanks to the particular positioning of the filtering element 32', its outer housing and the filter 32F' can be kept in optimal conditions; in particular, said filtering element 32' is not affected by the heat released by the soleplate 1 1 ' and by any heating means possibly associated with said soleplate 1 1 '.
  • the filtering element 32, 32' comprises at least one inlet 32A, 32A' allowing the liquid to flow into said filter 32F, 32F', in particular through the capillary fibres, where it is filtered by said pores on the surface of each fibre and from where it is then collected in the area of the filtering element 32, 32' external to the hollow capillary fibres; the filtering element 32, 32' further comprises at least one outlet 32B, 32B' allowing the permeate (i.e. the filtered liquid) to flow out of said filtering element 32, 32'.
  • the filtration of the liquid occurs in "inside-out" mode.
  • the filtering element 32, 32' comprises a plurality of substantially straight hollow capillary fibres substantially extending from an inlet 32A, 32A' to a closed portion 32P, 32P' of the filtering element 32, 32' opposite to said inlet 32A, 32A'.
  • the filtering element 32, 32' preferably comprises a pair of outlets 32B, 32B' positioned on a side surface 32L, 32L' of said filtering element 32, 32'.
  • the filtering element 32, 32' comprises a plurality of substantially U-shaped hollow capillary fibres, wherein each fibre extends from an inlet 32A, 32A' and then converges again towards said inlet 32A, 32A'.
  • the filtering element 32, 32' preferably comprises an outlet 32B, 32B' positioned on a portion of the filtering element 32, 32' opposite to said inlet 32A, 32A'.
  • the particular arrangement of the pump 33, 33' allows delivering to the soleplate 11, 1 1 ' an adequate quantity of liquid for the ironing operations.
  • non-return valve 34, 34' and the position thereof downstream of the filtering element 32, 32' allow protecting said filtering element 32, 32' against any returning liquid and/or steam, thus preventing the filtering element 32, 32' from being damaged by said returning liquid and/or steam.
  • the filtering element 32, 32' comprising a filter 32F, 32F' made of polymeric material, in particular polysulfone, ensures a longer service life of said filtering element 32, 32'. Since the filtering element 32, 32' does not require frequent replacement, the maintenance and operating costs of the ironing appliance 1, 1 ' can be reduced.
  • the particular provisions of the present invention also allow to realize the ironing appliance 1 , 1 ' in such a way that it is not bulky and does not cause any problems in regard to the positioning of the whole ironing appliance.
  • the special realization of the filtering element 32, 32' is such that its filtering efficiency remains substantially unchanged even after a long period of use, while at the same time not releasing any potentially harmful substances into the environment.
  • the ironing appliance, in particular for household use, described herein by way of example may be subject to many possible variations without departing from the novelty spirit of the inventive idea; it is also clear that in the practical implementation of the invention the illustrated details may have different shapes or be replaced with other technically equivalent elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Irons (AREA)
  • Filtering Materials (AREA)

Abstract

La présente invention concerne un appareil de repassage (1 ; 1'), en particulier destiné à un usage domestique, du type comprenant : un fer (10 ; 10') comprenant une semelle (11 ; 11') permettant d'exécuter des opérations de repassage classiques, en particulier sur des articles textiles ; un moyen de génération (30 ; 30') destiné à générer de la vapeur, ledit moyen de génération (30 ; 30') comprenant un réservoir (31 ; 31') conçu pour contenir un liquide et un élément de filtrage (32 ; 32') associé audit réservoir (31 ; 31') destiné à filtrer ledit liquide. L'invention est caractérisée en ce que ledit appareil de repassage (1 ; 1') comprend une pompe (33 ; 33') positionnée entre le réservoir (31 ; 31') et l'élément de filtrage (32 ; 32') afin de prendre le liquide dans le réservoir (31 ; 31') et de le distribuer audit élément de filtrage (32 ; 32').
PCT/IB2014/060173 2013-03-28 2014-03-26 Appareil de repassage, en particulier destiné à un usage domestique WO2014155310A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480017788.5A CN105074079A (zh) 2013-03-28 2014-03-26 熨烫器械，尤其是用于家庭使用
EP14722737.5A EP3011101A2 (fr) 2013-03-28 2014-03-26 Appareil de repassage, en particulier destiné à un usage domestique

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITTO20130049 ITTO20130049U1 (it) 2013-03-28 2013-03-28 Apparecchio di stiratura, in particolare di uso domestico
ITTO2013U000049 2013-03-28
ITTO2013A000256 2013-03-28
IT000256A ITTO20130256A1 (it) 2013-03-28 2013-03-28 Apparecchio di stiratura, in particolare di uso domestico

Publications (2)

Publication Number Publication Date
WO2014155310A2 true WO2014155310A2 (fr) 2014-10-02
WO2014155310A3 WO2014155310A3 (fr) 2014-12-04

Family

ID=50685977

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2014/060173 WO2014155310A2 (fr) 2013-03-28 2014-03-26 Appareil de repassage, en particulier destiné à un usage domestique

Country Status (3)

Country Link
EP (2) EP3059343A1 (fr)
CN (1) CN105074079A (fr)
WO (1) WO2014155310A2 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5063697A (en) 1989-06-08 1991-11-12 Seb S.A. Smoothing iron with a demineralizing cartridge
EP1616992B1 (fr) 2004-07-15 2009-11-11 Tenacta Group S.p.A. Appareil de repassage comprenant un filtre

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664045A (en) * 1970-09-23 1972-05-23 Gen Electric Spray iron
US4233763A (en) * 1978-08-21 1980-11-18 Nesco Products, Inc. Steam iron with low temperature soleplate
FR2688013B1 (fr) * 1992-02-28 1995-11-10 Moulinex Sa Centrales de repassage a vapeur comprenant un fer a repasser.
EP0995483A1 (fr) * 1998-10-23 2000-04-26 The Procter & Gamble Company Appareil de filtration à écoulement tangentiel
US6212332B1 (en) * 1998-12-15 2001-04-03 John C. K. Sham Steam iron station
US6397502B1 (en) * 2001-03-12 2002-06-04 Mitco International Ltd. Safety structure of steam ironing machine
CN2546102Y (zh) * 2002-05-29 2003-04-23 邓孝成 蒸汽清洗器
EP1598470A1 (fr) * 2004-05-17 2005-11-23 The Procter & Gamble Company Procédé et dispositif de lavage
CN101294703B (zh) * 2007-04-26 2011-02-23 三威塑胶制品(珠海)有限公司 一种蒸汽发生设备及其应用
CN201441889U (zh) * 2009-01-07 2010-04-28 蒋乃庆 便携式超滤水处理组件
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
CN102019676B (zh) * 2010-10-29 2013-10-09 深圳大学 蒸汽加热模具的加热设备

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5063697A (en) 1989-06-08 1991-11-12 Seb S.A. Smoothing iron with a demineralizing cartridge
EP1616992B1 (fr) 2004-07-15 2009-11-11 Tenacta Group S.p.A. Appareil de repassage comprenant un filtre

Also Published As

Publication number Publication date
CN105074079A (zh) 2015-11-18
EP3011101A2 (fr) 2016-04-27
WO2014155310A3 (fr) 2014-12-04
EP3059343A1 (fr) 2016-08-24

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