EP0863246A2 - Fer à repasser à vapeur - Google Patents

Fer à repasser à vapeur Download PDF

Info

Publication number
EP0863246A2
EP0863246A2 EP97203550A EP97203550A EP0863246A2 EP 0863246 A2 EP0863246 A2 EP 0863246A2 EP 97203550 A EP97203550 A EP 97203550A EP 97203550 A EP97203550 A EP 97203550A EP 0863246 A2 EP0863246 A2 EP 0863246A2
Authority
EP
European Patent Office
Prior art keywords
tank
iron
movable rod
diaphragm
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97203550A
Other languages
German (de)
English (en)
Other versions
EP0863246A3 (fr
Inventor
Franco Polti
Mauro Pogliani
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.)
Polti SpA
Original Assignee
Polti 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
Application filed by Polti SpA filed Critical Polti SpA
Publication of EP0863246A2 publication Critical patent/EP0863246A2/fr
Publication of EP0863246A3 publication Critical patent/EP0863246A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • D06F75/14—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
    • D06F75/18—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 the water being fed slowly, e.g. drop by drop, from the reservoir to a steam generator

Definitions

  • the present invention relates to a steam iron of the type comprising at least one vaporization chamber associated with heating means, a tank located above the vaporization chamber for holding water to be vaporized, and a water-supply device associated with the tank and having, in the region of the vaporization chamber, a supply valve operated by means of a movable rod which is partially immersed in the tank and is associated with operating means on the iron, the tank having a hole in which the movable rod is engaged.
  • Irons as specified above are known. They are heated electrically and can supply steam upon demand by the user.
  • An iron of this type has a seal in the above-mentioned hole for preventing water leakage because of the imperfect seal between the surface of the movable rod and the edge of the hole.
  • the rod moves in opposite directions in order to open and close the supply valve. There is therefore frequent friction between the outer surface of the rod and the seal which, however, is fixed to the tank.
  • the immersed portion of the rod which controls the supply of steam is subject to an unpredictable amount of calcareous furring which increases gradually with time.
  • This furring takes part in the aforementioned friction and increases the rate of wear so that water leakages may occur inside the iron because the seal is not watertight.
  • an iron of the type specified which is characterized in that it comprises a resiliently deformable diaphragm fixed to the tank in the region of the hole and fixed to the movable rod, the diaphragm being intended to form a hydraulic seal in the region of the hole.
  • the main advantage of the iron according to the invention is that friction is eliminated between the rod and other components of the iron which are subject to wear, ensuring that the water tank is watertight over time.
  • a steam iron is generally indicated 1. It comprises a plate 2 heated electrically by means of resistors, not shown, and having a plurality of holes 3 for supplying steam directly onto the fabric articles to be ironed.
  • the iron 1 incorporates a tank 4 located above the plate 2 for holding the water to be vaporized.
  • the iron 1 comprises a vaporization chamber 5 formed in the plate 2 facing the holes 3.
  • the chamber 5 is associated with heating means which, in the embodiment shown, are constituted by the plate 2.
  • the tank 4 is disposed above the vaporization chamber.
  • the iron 1 also comprises a device, generally indicated 6, for supplying the water to be vaporized, the device 6 being associated with the tank 4.
  • the device is of the type for supplying water drop by drop and has, in the vaporization chamber 5, a needle supply-valve 7 defining an actuation axis A of the valve 7 and having a needle-like closure element 8 and a metal valve seat 9.
  • the valve seat 9, which faces the vaporization chamber 5, is disposed a short distance from the heating means, that is, the plate 2.
  • the supply valve 7 is operated by a movable rod 10 associated with operating means 11 disposed on a grip 12 of the iron 1.
  • the operating means are manual and have a push-button 13.
  • the rod 10 is moved in opposite directions along the actuation axis A by means of the push-button 13 in order to open and close the valve 7, the rod 10 having the closure element 8 on its opposite end to the push-button 13.
  • the tank 4 has walls 14 which define a cylindrical duct 15 of axis A, inset in the tank in the region of the valve 7.
  • the duct 15 has an inner end 16 where the tank 4 has a hole 17 with a diameter smaller than that of the cylindrical duct 15 so that the tank 4 also has an abutment surface 18 in the region of the edge of the hole 17.
  • the rod 10 extends from the valve 7 into the cylindrical duct 15 and is engaged in the hole 17.
  • the rod 10 is therefore partially immersed in the tank 4 at least for a portion thereof which will be defined further below.
  • the iron 1 also comprises resilient means 19 which act in opposition to the operating means 11 and are associated with the movable rod 10. The user therefore acts against the force exerted by the resilient means 19 in order to open the valve 7.
  • the resilient means 19 are housed in the cylindrical duct 15 and are constituted by a helical spring disposed around the rod 10, the spring being fixed to the rod 10 and bearing on the abutment surface 18.
  • the iron 1 according to the invention comprises a resilient diaphragm 20 fixed to the tank 4 in the region of the hole 17 and fixed to the movable rod 10.
  • the diaphragm 20 is intended to form a hydraulic seal for the tank 4 in the region of the hole 17 since it is arranged so as to close the entire opening of the hole 17 around the rod 10.
  • the diaphragm 20 extends from the hole 17 towards the valve 7, inside the tank 4, that is, it is disposed between the inner end 16 of the cylindrical duct 15 and the supply valve 7.
  • the resilient diaphragm 20 has a cylindrical structure housing at least a portion of the rod 10.
  • the immersed portion of the rod 10 is disposed between the valve 7 and the point at which the diaphragm 20 is closed against the rod 10, that is, between the obturator 8 and the portion of the rod 10 housed in the diaphragm 20.
  • the diaphragm 20 has a bellows-shaped portion 21 and is made of resilient and flexible material, for example, of rubber.
  • the diaphragm 20 is fitted in a resiliently leaktight manner over the outer walls of the cylindrical duct 15 but inside the tank 4.
  • the iron 1 according to the invention also comprises a covering 22 of insulating and non-stick material, in which the valve seat 9 of the supply valve 7 is enveloped.
  • non-stick material is intended a so-called abherent material (Kirk-Othmer, Encyclopedia of Chemical Technology, 3rd Ed., Vol 1, John Wiley & Sons), that is, a material which prevents or reduces the adhesion of another material thereto.
  • abherent materials for example, materials based on silicones, stearates, cellulose derivatives, polyolefins, vinyl compounds, polyterephthalates and polyethylene terephthalates, fluorocarbon polymers such as tetrafluoroethylene (Teflon®), etc.
  • the covering material 22 is preferably elastomeric.
  • the covering 22 is made of silicone rubber.
  • the covering 22 is shaped substantially like a bush 4 of axis A, the upper end of which is fixed to the tank 4 in a leaktight manner and which has a first duct 23 full of water from the tank 4.
  • a second, water-supply duct 26 is also formed in the covering 22 and extends from the valve seat 9 into the vaporization chamber 5.
  • the diaphragm 20 ensures watertightness of the tank 4 in the region of the hole 17, irrespective of the position and the state of movement of the rod 10 relative to the hole 17.
  • the helical spring associated with the movable rod is not in contact with the water in the tank and is therefore subject to less chemical/physical deterioration.
  • the particular arrangement of the diaphragm enables most of the rod to be kept out of contact with the water, thus minimizing furring.
  • the presence of the covering in the region of the valve seat of the water-supply device enables the hot region, that is, the vaporization chamber, to be physically, particularly thermally, separated from all of the other components, including the diaphragm, which thus have greater protection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP97203550A 1997-02-18 1997-11-14 Fer à repasser à vapeur Withdrawn EP0863246A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97MI000342A IT1291714B1 (it) 1997-02-18 1997-02-18 Ferro da stiro a vapore
ITMI970342 1997-02-18

Publications (2)

Publication Number Publication Date
EP0863246A2 true EP0863246A2 (fr) 1998-09-09
EP0863246A3 EP0863246A3 (fr) 1999-02-17

Family

ID=11376061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97203550A Withdrawn EP0863246A3 (fr) 1997-02-18 1997-11-14 Fer à repasser à vapeur

Country Status (3)

Country Link
EP (1) EP0863246A3 (fr)
BR (1) BR9800236A (fr)
IT (1) IT1291714B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1835067A1 (fr) * 2006-03-16 2007-09-19 Domena Appareil de repassage
US8615908B2 (en) 2009-02-05 2013-12-31 Strix Limited Hand-held steam appliances

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3510993A1 (de) * 1985-03-27 1986-10-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Elektrisches dampfbuegeleisen
ES289976Y (es) * 1985-10-30 1988-07-01 Oficina De Investigacion Agrupada,S.A. Valvula perfeccionada de paso de agua para planchas de vapor
DE4402683A1 (de) * 1994-01-29 1995-08-03 Braun Ag Wassereinleitvorrichtung für Dampfbügeleisen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1835067A1 (fr) * 2006-03-16 2007-09-19 Domena Appareil de repassage
FR2898612A1 (fr) * 2006-03-16 2007-09-21 Domena Soc Par Actions Simplif Appareil de repassage
US8615908B2 (en) 2009-02-05 2013-12-31 Strix Limited Hand-held steam appliances

Also Published As

Publication number Publication date
ITMI970342A1 (it) 1998-08-18
BR9800236A (pt) 1999-09-28
IT1291714B1 (it) 1999-01-21
EP0863246A3 (fr) 1999-02-17

Similar Documents

Publication Publication Date Title
US6122849A (en) Iron with thermal resistance layer
RU2179605C2 (ru) Паровой утюг
US2878601A (en) Push button steam iron
CN102301064B (zh) 熨烫装置
US20050045172A1 (en) Universal integrated device for controlling gas-burner rings of a cooking surface including a gas tap and a catenary element
CN101346509B (zh) 包含由可热变形元件所控制的阀门的熨斗
EP0863246A2 (fr) Fer à repasser à vapeur
EP0333093B1 (fr) Réservoir calorifique pour de liquides, des produits gras, des gels et des produits similaires
US6167643B1 (en) Iron with non-drip device
CN101374989A (zh) 蒸汽熨斗
CA1312177C (fr) Plaque de vidage et trop-plein pour baignoires
US6346681B1 (en) Pressure switch
US4856212A (en) Cordless iron with high-temperature, non-scorching sole plate surface
CN100387771C (zh) 带有多功能滴流器的熨斗
US7516566B2 (en) Steam iron having a lightweight soleplate and flat resistive heating tracks for heating the soleplate
US5029303A (en) Switching device
KR20180002029A (ko) 압력 조절장치를 구비한 주전자
WO1998009015A1 (fr) Reservoir a liquide et fer a vapeur comprenant ce reservoir
US2715010A (en) Fluid valve assembly
US5572810A (en) Steam iron with rotatable temperature control
GB2327950A (en) Steam iron
US7415784B2 (en) Electric iron with boiler-type steam generator
US6404321B1 (en) Actuator
JP2020026316A (ja) ダブルロック構造の安全レバー装置
US6393740B1 (en) Temperature control and drip valve assembly for a steam iron

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE ES FR IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990816

AKX Designation fees paid

Free format text: AT DE ES FR IT

17Q First examination report despatched

Effective date: 20000126

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20010616