EP1509649B1 - Fer a repasser a vapeur - Google Patents

Fer a repasser a vapeur Download PDF

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Publication number
EP1509649B1
EP1509649B1 EP02795265A EP02795265A EP1509649B1 EP 1509649 B1 EP1509649 B1 EP 1509649B1 EP 02795265 A EP02795265 A EP 02795265A EP 02795265 A EP02795265 A EP 02795265A EP 1509649 B1 EP1509649 B1 EP 1509649B1
Authority
EP
European Patent Office
Prior art keywords
liquid reservoir
steam
liquid
gas valve
pressure
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.)
Expired - Lifetime
Application number
EP02795265A
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German (de)
English (en)
Other versions
EP1509649A1 (fr
Inventor
Desideri Falco Sastre
Francesc Carreras Devesa
Vicenc Font Manent
Juan Carlos Coronado Sanz
Antonio Rebordosa Rius
Xavier Cuesta Mundet
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.)
Braun GmbH
Original Assignee
Braun GmbH
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Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Publication of EP1509649A1 publication Critical patent/EP1509649A1/fr
Application granted granted Critical
Publication of EP1509649B1 publication Critical patent/EP1509649B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • 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 a steam iron with the features of the preamble of claim 1.
  • a steam iron with drip valve water is introduced drop by drop from the water tank or liquid reservoir into a heated steam chamber.
  • the steam generated in the steam chamber exits through steam outlet openings from the sole and hits the material to be ironed.
  • the vapor pressure in the steam chamber only corresponds to the atmospheric pressure or is increased by the value which constitutes the height of the water column in the water tank and the atmospheric pressure exerted on it.
  • the steam outlet openings are surrounded by a sole surface, so that in particularly dense ironing material such as denim or / and a little steam-permeable ironing board, for example. made of wood which can not be produced by a steam iron with drip valve producible vapor pressure sufficient to bring out steam from the steam outlet openings.
  • an increased vapor pressure builds up in the steam chamber, which is in pressure-compensating communication with the steam outlet openings, because of the poorly vapor-permeable ironing material.
  • the increased vapor pressure of the steam chamber which precludes the atmospheric pressure, taking into account the height of the water column in the water tank on the other side of the drip valve. The amount of steam applied to the material to be ironed thus continues to drop significantly.
  • a steam iron which has a pressure equalizing pipe whose first opening opens into the soleplate and whose second opening is arranged in a liquid-free region of the liquid reservoir.
  • the pressure equalizing tube has no opening to the steam chamber, so that no pressure equalization between the steam chamber and the liquid reservoir is possible.
  • the liquid reservoir further has a partition wall 5, which subdivides the liquid reservoir into two liquid regions according to the bird-drench principle.
  • a switchable pressure generator is provided in a wall of the liquid reservoir, which promotes depending on the setting of a pressure control device ambient pleasure in the liquid reservoir.
  • a steam iron is known, the first opening also opens into the soleplate and the second opening opens into a separate area outside the liquid reservoir.
  • the known steam iron has no drip valve, since the liquid is heated in the liquid reservoir immediately after the boiler principle for generating steam.
  • a steam iron of the type is provided with drip valve, in which between a liquid reservoir and a steam chamber, a pressure compensation device such.
  • B. a connecting pipe is arranged.
  • the liquid reservoir and the liquid filling region are each not only liquid-tight, but also gas-tight in such a way that a gas pressure can be built up in the liquid reservoir. This is true at least adjacent to a second opening of the pressure compensation direction.
  • a first one-way gas valve is provided, through which ambient air can enter the liquid reservoir.
  • the first one-way gas valve opens automatically from a certain threshold pressure value.
  • negative pressures are preferably provided in the liquid reservoir or as threshold 0 mbar. Accordingly, ambient air can be introduced into the liquid reservoir by the first one-way gas valve at negative pressure.
  • the intrinsically disturbing wave motion of the water in the liquid reservoir - as described above - made usable.
  • the usually violently reciprocating by the movement of the iron in the liquid reservoir water unfolds almost the effect of a piston pump or "thermal pump” with the water as a moving piston.
  • one end region of the liquid reservoir is significantly more laden with water than an opposite region. In this rather water-poorer area of the liquid reservoir thus creates a negative pressure.
  • a first one-way gas valve which is arranged in a wall of the liquid reservoir in this area with negative pressure, thus allowing the entry of ambient air, so that as a result the reciprocation of the water in the liquid reservoir through the first one-way gas valve leads to a continuous supply of ambient air.
  • a second one-way gas valve is provided on a wall of the liquid reservoir or the liquid filling region, which permits the gas outlet from the liquid reservoir counter to the first one-way gas valve.
  • This second one-way gas valve is designed such that it opens automatically from a positive threshold pressure value, so that at a certain pressure in the liquid reservoir gas through the second one-way gas valve from the liquid reservoir can be brought out.
  • This threshold pressure value of the second one-way gas valve is at an overpressure of z. B.> 50 or> 100 mbar, which does not occur in the usual use of the steam iron.
  • the second valve has a safety function in order to avoid more extreme pressures in the liquid reservoir or in the steam chamber when closing the steam outlet openings.
  • the second one-way gas valve is formed in the closure of the liquid filling area.
  • the closure can engage, for example by means of a snap connection in the housing or the wall of the liquid reservoir.
  • the force needed to release this snap connection is set to correspond to the positive threshold pressure value according to the second one-way gas valve.
  • the pressure compensation device is not a second to be isolated or sealed connection between the liquid reservoir and the steam chamber necessary when the drip valve is provided with an inner tube, the cavity serves as a pressure compensation device.
  • Fig. 1 schematically shows a longitudinal section through a steam iron 1 with a housing 2, which comprises a handle 3, a liquid reservoir 4 and a lower skirt 5.
  • the liquid reservoir 4 has a substantially elongate embedding, with a portion of lesser height 4a and a portion of greater height 4b.
  • the liquid container is never completely filled with water, so that the portion of lesser height is readily filled to the full height with water and in the portion of greater height 4b an anhydrous area with remaining air is provided.
  • a closure 6 is formed, which is to be opened by displacement or pivoting, so that water can be introduced into the liquid reservoir.
  • the closure has a snap connection, so that it is to close on the adjacent wall to the liquid reservoir or housing 2 by snapping.
  • Adjacent to the wall of the housing 2 6 sealing means 7 are provided on the closure.
  • the wall surrounding the water of the liquid reservoir and the liquid filling region 17 with closure 6 and seal 7 is not only liquid-tight, but also formed gas-tight manner in such a way that in the liquid reservoir, a gas pressure is buildable.
  • a die body 8 is provided in a lower portion of the steam iron 1.
  • a heater 9 is poured in die casting 8 .
  • the die-cast body has a cavity or a recess which serves as a steam chamber 10.
  • the steam chamber 10 is closed with the adjacent DruckgußACS 8 through a steam chamber lid 11 upwards.
  • a sole 12 is formed with an ironing surface.
  • the sole 12 may be fixed as a sheet metal part in composite construction on the casting 8, or may be formed directly by the underside of the casting 8.
  • a plurality of steam outlet openings 13 are provided, which are in vapor communication with the steam chamber 10.
  • the steam iron 1 further has a drip valve 14, the z. B. may be formed as Kanaleinfräsung in a longitudinal bar.
  • a drip valve 14 By the lateral Kanaleinfräsung in the rod passes drop by drop from the water of the liquid reservoir 4 into the steam chamber 10. The water drops hit the hot inside of the steam chamber and evaporate.
  • a steam regulator 15 is led out to the upper housing outside. The steam regulator 15 allows adjustment of the amount of water that can be introduced into the steam chamber 10 or the amount of steam that can be generated.
  • a pressure compensation device 16 is provided, which is designed as a tube.
  • the first opening 16a of the pressure compensation device 16 protrudes into the steam chamber 10.
  • the second opening 16b or the other end of the tube of the pressure compensation device 16 projects into the higher area 4b of the liquid reservoir 4.
  • the second opening 16b thus ends in a region of the liquid reservoir 4 is not wetted with the water of the liquid reservoir 4 in both horizontal and vertical position of the steam iron.
  • a first one-way gas valve 18 is arranged at one end portion of the liquid reservoir, preferably in the longitudinal direction, preferably in the closure of the liquid filling region 17, a first one-way gas valve 18 is arranged.
  • the first one-way gas valve is a pure gas valve, so liquid-tight. It is designed for example as a ball valve and opens from a certain threshold pressure value. This Threshold pressure value is preferably negative or 0 mbar, so that at a negative pressure in the liquid reservoir 4 ambient air passes through the first one-way gas valve 18 into the liquid reservoir, so that a possibly developing negative pressure is compensated immediately via the first one-way gas valve.
  • a further first one-way gas valve 19 is arranged at the other end region of the liquid reservoir quasi opposite to the first one-way gas valve 18.
  • a second one-way gas valve which opens automatically at a certain overpressure in the liquid reservoir, so that the overpressure can be reduced immediately.
  • the second one-way gas valve 20 may analogously to the first one-way gas valve 18, for example as a ball valve, but in this case spring-loaded, be formed, only that it acts in the opposite direction compared to the first one-way gas valve. In this case, the spring force acting on the ball determines the threshold pressure value at which the second one-way gas valve 20 opens.
  • the second one-way gas valve is integrally formed in the shutter 6 without conventional valve means such as a ball valve. Accordingly, the closure 6 has a snap connection to the housing 2, which opens from a certain applied from the inside of the liquid reservoir ago force. This opening of the closure 6 thus corresponds to an opening of a second one-way gas valve 20.
  • Fig. 1 shows the steam iron in a state in which it is moved straight in the longitudinal direction to the tip forward.
  • the water 21 located in the liquid reservoir 4 is mainly accumulated in a rear region of the liquid reservoir.
  • the front portion of the liquid reservoir is in this case rather liquid, with the movement of the water in the front region, a negative pressure is generated.
  • this negative pressure is reduced immediately by the first one-way gas valve 18, so that it does not transfer via the pressure compensation device 16 from the liquid reservoir 4 to the steam chamber 10. Without the first one-way gas valve at a negative pressure in the liquid reservoir steam is sucked from the steam chamber into the liquid reservoir, so that a lesser amount of steam exits the steam outlet openings.
  • Fig. 2 shows the same steam iron as in Fig. 1 with the difference that the steam iron is being moved in the rearward direction, whereby the water 21 in the liquid reservoir 4 is increasingly accumulated in the front region of the liquid reservoir 4. It is thus the water and more of an overpressure on the first one-way gas valve 18, so that it remains closed.
  • the provided in a variant further first One-way gas valve 19 operates analogously to the first one-way gas valve 18 and are in the movement of the Fig. 2 the opening is free to equalize the negative pressure adjacent to the first one-way gas valve 19.
  • the first one-way gas valve 19 is in Fig. 1 and Fig. 2 arranged in a rearmost area of the wall of the liquid reservoir 4.
  • the first one-way gas valve 18 may also be arranged adjacent to the handle and at the same height of the first one-way gas valve 18 on the wall of the liquid reservoir.
  • the water reciprocating in the liquid reservoir 4 thus has a similar effect as a piston pump and draws in ambient air into the liquid reservoir 4 through the first one-way gas valve 18 (or possibly also 19). So that the first one-way gas valve 18, 19 unfolds its effect optimally relative to the pressure in the steam chamber 10, it is advantageous if it is arranged adjacent to the second opening 16b, 22b. In addition, it plays a role for the arrangement of the / the first one-way gas valve (s) that a significant negative pressure at the point in question by the movement of the water in the liquid reservoir 4 can arise.
  • Fig. 3 shows a steam iron 1, analogous to the steam iron according to Fig. 1 and Fig. 2 is formed, but with the difference that the rod-shaped drip valve has a cavity which serves as a pressure compensation device 22. Unchanged ends the first opening 22 a of the pressure compensation device 22 in the steam chamber 10 and the second opening 22 b of the pressure compensation device 22 in the vicinity of the steam control knob 15 at a lateral opening of the drop valve rod .14 within the liquid reservoir 4.
  • the drip valve 14 is unchanged as a lateral channel in the Milled wall of the rod or tube side, so that through this channel, the Wasserzu 1500menge for the steam chamber is adjustable.
  • Fig. 4 shows a pressure measurement curve in which the time is plotted on the horizontal axis and a pressure in mbar on the vertical axis.
  • the measured curve shown shows the pressure in the liquid reservoir in a steam iron with pressure compensation device but without a first one-way gas valve. Accordingly, no wave motion or a back and forth sloshing of the water is effected in the liquid reservoir, so that no serious pressure fluctuations occur.
  • Fig. 5 shows a trace according to Fig. 4 in which, however, the steam iron according to Fig. 4 is moved back and forth.
  • the wave motion of the water leads to negative pressures, the due to the connection with the steam chamber have effects on the steam outlet at the steam outlet openings 13.
  • Fig. 6 shows a pressure measurement curve, in which again the vertical pressure in mbar and across the horizontal, the elapsed time is shown. Again, the pressure in the liquid reservoir is measured with simultaneous movement of the steam iron and its liquid reservoir contents.
  • a steam iron 1 according to the FIGS. 1 to 3 has been used, wherein a first one-way gas valve 18 is provided in the steam iron 1. It is thus a total of a slightly higher pressure in the liquid reservoir can be built, with negative pressures occur less frequently and to a lesser extent.
  • a substantially constant high steam output at the steam outlet openings 13 is possible. It can be a constant high amount of steam regardless of the nature of the ironing and regardless of the state of motion of the steam iron can be achieved.
  • the steam iron is operated by the following procedure: Liquid drips via a liquid reservoir into a steam chamber, so that steam is generated in the steam chamber.
  • the steam exits a soleplate of the steam iron through steam outlets communicating with the steam chamber.
  • Ambient air is admitted in the normal reciprocating movement of the iron via a one-way gas valve and an otherwise gas-tight design of the liquid reservoir in the liquid reservoir, as by the reciprocating of the iron and the water in the liquid reservoir is reciprocated so that it like a piston of a piston pump or a thermal pump generates a local underpressure in the less watery region of the liquid reservoir.
  • a one-way gas valve arranged for this momentary, water-leaner area thus allows ambient air into the liquid reservoir.
  • the intrinsically disturbing wave motion of the water in the liquid reservoir in a steam iron which further comprises a pressure compensation device between the steam chamber and the liquid reservoir, is thus utilized, because pressure fluctuations in the liquid reservoir are compensated by the reciprocation of the water, so that via the pressure compensation device an overall higher pressure is buildable.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (6)

  1. Fer à repasser à vapeur avec une semelle (12) comportant des ouvertures de sortie de vapeur (13) qui sont en communication de vapeur avec une chambre de vapeur (10), un dispositif de chauffage (9) qui chauffe la semelle (12) et la chambre de vapeur (10) pour la production de vapeur, un réservoir de liquide (4), une soupape compte-gouttes (14) pour alimenter la chambre de vapeur (10) en liquide (21) à partir du réservoir de liquide (4), ainsi qu'un dispositif d'équilibrage de pression (16, 22) dont la première ouverture (16a, 22a) est disposée dans la chambre de vapeur (10) et dont la seconde ouverture (16b, 22b) est disposée dans une zone sans liquide du réservoir de liquide (4), dans lequel le réservoir de liquide (4) est étanche au gaz au moins dans la région de la seconde ouverture (16b, 22b), de telle manière qu'une pression de gaz puisse être établie, caractérisé en ce qu'une paroi du réservoir de liquide (4) ou d'une région de remplissage de liquide (17) est pourvue d'une première soupape à gaz à une voie (18), à travers laquelle de l'air ambiant peut être introduit dans le réservoir de liquide (4) et en ce que la paroi du réservoir de liquide (4) ou de la région de remplissage de liquide (17) et la soupape à gaz à une voie (18) sont réalisées de telle manière que, par suite du mouvement du liquide dans le réservoir de liquide (4) pendant le repassage, comparable à un piston d'une pompe à piston, il puisse s'établir localement une dépression dans le réservoir de liquide, dans la région de la soupape à gaz à une voie (18), de telle manière que de l'air ambiant puisse pénétrer dans le réservoir de liquide à travers la soupape à gaz à une voie (18).
  2. Fer à repasser à vapeur selon la revendication 1, caractérisé en ce que la première soupape à gaz à une voie (18) est réalisée de manière à s'ouvrir automatiquement à partir d'une valeur de seuil de pression négative, de telle manière que de l'air ambiant puisse pénétrer dans le réservoir de liquide (4) à travers la première soupape à gaz à une voie (18) lorsqu'il règne une dépression dans le réservoir de liquide (4).
  3. Fer à repasser à vapeur selon la revendication 1 ou 2, caractérisé en ce qu'une paroi du réservoir de liquide (4) ou de la région de remplissage de liquide (17) est pourvue d'une seconde soupape à gaz à une voie (20), à travers laquelle un gaz peut être expulsé hors du réservoir de liquide (4).
  4. Fer à repasser à vapeur selon la revendication 3, caractérisé en ce que la seconde soupape à gaz à une voie (20) est réalisée de manière à s'ouvrir automatiquement à partir d'une valeur de seuil de pression positive, de telle manière que du gaz puisse être expulsé hors du réservoir de liquide (4) à travers la seconde soupape à gaz à une voie (20) lorsqu'il règne une surpression déterminée dans le réservoir de liquide (4).
  5. Fer à repasser à vapeur selon la revendication 3 ou 4, caractérisé en ce que la seconde soupape à gaz à une voie (20) forme une fermeture (6) pour fermer en plus la région de remplissage de liquide (17).
  6. Fer à repasser à vapeur selon la revendication 1 ou 2, caractérisé en ce que la soupape compte-gouttes (14) est pourvue d'un tube, dont l'espace creux constitue un dispositif d'équilibrage de pression (22).
EP02795265A 2002-05-31 2002-12-21 Fer a repasser a vapeur Expired - Lifetime EP1509649B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10224549A DE10224549A1 (de) 2002-05-31 2002-05-31 Dampfbügeleisen
DE10224549 2002-05-31
PCT/EP2002/014694 WO2003102292A1 (fr) 2002-05-31 2002-12-21 Fer a repasser a vapeur

Publications (2)

Publication Number Publication Date
EP1509649A1 EP1509649A1 (fr) 2005-03-02
EP1509649B1 true EP1509649B1 (fr) 2008-02-27

Family

ID=29557486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02795265A Expired - Lifetime EP1509649B1 (fr) 2002-05-31 2002-12-21 Fer a repasser a vapeur

Country Status (8)

Country Link
US (1) US6745504B2 (fr)
EP (1) EP1509649B1 (fr)
AT (1) ATE387533T1 (fr)
AU (1) AU2002360077A1 (fr)
DE (2) DE10224549A1 (fr)
ES (1) ES2300502T3 (fr)
PT (1) PT1509649E (fr)
WO (1) WO2003102292A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2821369B1 (fr) * 2001-02-27 2003-09-05 Rowenta Werke Gmbh Fer a repasser a vapeur pulsee
CN1788118B (zh) * 2003-05-16 2010-04-28 皇家飞利浦电子股份有限公司 一种带有筒体的熨斗
FR2857382B1 (fr) * 2003-07-11 2005-08-19 Seb Sa Fer a repasser comportant un reservoir d'eau muni d'un orifice de remplissage sur la face arriere du fer
US7000342B2 (en) * 2004-01-23 2006-02-21 Mitco International Ltd. Steam iron
WO2008029313A1 (fr) * 2006-08-07 2008-03-13 Koninklijke Philips Electronics N.V. Fer à repasser à vapeur
US9334604B1 (en) * 2015-01-12 2016-05-10 Hamilton Beach Brands, Inc. Water fill valve assembly for an iron
US10907300B2 (en) * 2017-12-15 2021-02-02 Shenzhen Chenbei Technology Co., Ltd. Portable steamer with ironing arrangement

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
US2387281A (en) * 1942-07-29 1945-10-23 Westinghouse Electric Corp Steam iron
US2892272A (en) * 1955-05-24 1959-06-30 Gen Electric Balanced pressure steam iron
DE1082220B (de) * 1957-06-19 1960-05-25 Gen Electric Dampfbuegeleisen mit Fluessigkeitszerstaeuber
US3002302A (en) * 1957-06-19 1961-10-03 Gen Electric Liquid spray steam iron
DE1585854A1 (de) 1965-07-24 1970-10-22 Philips Nv Dampfbuegeleisen mit einer durch die den Eingang zum Wasserbehaelter verschliessenden Klappe verlaufenden Dampfregelnadel
DE1595854A1 (de) * 1966-02-10 1970-04-23 Klosa Dipl Chem Dr Josef Verfahren zur Herstellung neuer 3-Toluylalkyl-dihydrobenzothiadiazindioxyde
US3780457A (en) * 1973-02-05 1973-12-25 Gen Electric Steam iron
DE3328453C1 (de) 1983-08-06 1985-01-24 Rowenta-Werke Gmbh, 6050 Offenbach Dampfbuegeleisen
IT8323096V0 (it) * 1983-09-28 1983-09-28 Costa Lorenzo & C Olimpic Ferro da stiro a vapore ad accumulo.
DE3437825C2 (de) * 1984-01-13 1986-08-14 Rowenta-Werke Gmbh, 6050 Offenbach Dampfbügeleisen
US4748755A (en) * 1986-12-29 1988-06-07 Sunbeam Corporation Housing assembly for electric steaming and pressing iron
DE3715059C1 (de) 1987-05-06 1988-08-18 Rowenta Werke Gmbh Dampfbuegeleisen
JPH05329299A (ja) * 1992-05-28 1993-12-14 Toshiba Home Technol Corp スチームアイロン
DE4402683A1 (de) * 1994-01-29 1995-08-03 Braun Ag Wassereinleitvorrichtung für Dampfbügeleisen
US5421110A (en) * 1994-05-10 1995-06-06 Black & Decker Inc. Electric iron with reservoir fill-check float valve

Also Published As

Publication number Publication date
US20030221341A1 (en) 2003-12-04
WO2003102292A1 (fr) 2003-12-11
ATE387533T1 (de) 2008-03-15
ES2300502T3 (es) 2008-06-16
AU2002360077A1 (en) 2003-12-19
DE10224549A1 (de) 2003-12-18
PT1509649E (pt) 2008-04-22
DE50211803D1 (de) 2008-04-10
EP1509649A1 (fr) 2005-03-02
US6745504B2 (en) 2004-06-08

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