EP0592334A1 - Steam iron comprising a grid for distributing the water - Google Patents

Steam iron comprising a grid for distributing the water Download PDF

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Publication number
EP0592334A1
EP0592334A1 EP93420386A EP93420386A EP0592334A1 EP 0592334 A1 EP0592334 A1 EP 0592334A1 EP 93420386 A EP93420386 A EP 93420386A EP 93420386 A EP93420386 A EP 93420386A EP 0592334 A1 EP0592334 A1 EP 0592334A1
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EP
European Patent Office
Prior art keywords
grid
iron according
layer
water
coating
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Granted
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EP93420386A
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German (de)
French (fr)
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EP0592334B1 (en
Inventor
Henry Boulud
Christian Giovalle
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SEB SA
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SEB SA
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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
    • D06F75/14—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 the general technical field of vaporization apparatus, and in particular to steam irons in which it is necessary to ensure the vaporization of a liquid before its expulsion in the form of vapor.
  • the present invention relates to a steam iron comprising an ironing soleplate, heating means, and a vaporization chamber provided with a coating promoting the vaporization of the ironing liquid, in this case generally water.
  • the object assigned to the invention therefore aims to remedy the various drawbacks listed above and to provide a steam iron, the quality of vaporization of which is improved whatever the handling or the movement to which the iron is subjected.
  • Another object of the invention is to provide a steam iron, the distribution of water in the vaporization chamber is improved using particularly simple and effective means.
  • a steam iron comprising an ironing soleplate, heating means and a vaporization chamber provided with a coating promoting the water vaporization characterized in that the vaporization chamber comprises, above the coating, a water distribution grid.
  • FIG. 1 shows an iron soleplate according to the invention comprising an ironing soleplate 1 provided with orifices 2 for the passage of steam, to which is fixed, by any suitable means, a metallic heating soleplate 3 provided with a heating means 4 consisting for example of an armored resistor.
  • the heating sole 3 defines internally in a manner known per se, a vaporization chamber 5 connected by at least one channel 6 to a series of perforations 7 in relation to the vaporization orifices 2.
  • the entire heating sole 3 is intended to be closed by a cap 8 attached to said heating sole 3.
  • the vaporization chamber 5 is in relation to the reservoir of the iron (not shown in the figures) by means of a bore 9 formed through the cap 8 at above said vaporization chamber 5.
  • the iron according to the invention comprises a vaporization chamber 5 provided with a coating 11 (FIGS. 2 and 3), extending at least in part on the bottom of said chamber to promote the vaporization of water.
  • the coating It comprises at least one layer of a material having hydrophilic and / or wettability properties intended to favor respectively, the spreading of water on the surface of the coating 11, and its absorption in the thickness of said coating.
  • the coating 11 also has bonding properties favoring its adhesion to the bottom of the vaporization chamber 5.
  • the coating 11 will be chosen from materials having good thermal insulation properties so as to constitute a brake thermal allowing a relative lowering of the temperature of the vaporization chamber 5 in order to promote vaporization.
  • the coating 11 thus forms a first layer which can be advantageously chosen from materials such as sodium silicate, calcium carbonate, paints or varnishes, cements (Fiber Frax), silica-based compounds, carbonates, metal oxides, enamels, or compounds capable of being deposited in the form of plasma deposition.
  • materials such as sodium silicate, calcium carbonate, paints or varnishes, cements (Fiber Frax), silica-based compounds, carbonates, metal oxides, enamels, or compounds capable of being deposited in the form of plasma deposition.
  • the vaporization chamber 5 comprises, above the covering 11, a grid 15 for distributing water.
  • the latter preferably extends over the entire bottom of the vaporization chamber 5 and is advantageously in direct contact with said bottom.
  • the grid 15 can obviously be placed at a distance above the bottom of the vaporization chamber 5, and for example at 1 or 2 mm.
  • the grid 15 is provided, at least in line with the bore 9, with means 16 for deflection and distribution of the water on the surface of the covering 11.
  • the means 16 for reflection and distribution consist of a series of strips 16 ( a) projecting above the lower extension plane P of the grid 15.
  • the grid 15 defines as shown for example in FIG. 1, a series of openings 17 forming the mesh of said grid 15.
  • the strips 16a surround at least partially, and preferably completely, the openings 17.
  • the height strips 16a from the plane P is advantageously of an average value between 0.5 and 5 mm, and preferably between 1 and 3 mm.
  • the cross section of the strips 16a can advantageously be likened to a rhombus, one of the vertices of which is oriented in such a way that it constitutes the highest point of the height of the strap as shown in FIG. 3.
  • the two upper faces 16b of the strips 16a thus constitute deflection and distribution surfaces of the water intended to be vaporized, and thus evenly distribute the volume of water in the openings 17, and consequently over the entire surface of the chamber vaporization 5.
  • the surfaces 16b can obviously be flat or curved, or even can be irregular and for example provided with notches or ridges.
  • the shape of the openings 17 can be hexagonal, honeycomb, square and is preferably also comparable to a rhombus.
  • the grid 15 is made of an expanded metal, preferably aluminum or an aluminum alloy, or even from any other stainless metal.
  • the grid 15 can be coated, at least partially, with a hydrophilic material and having wettability properties.
  • the grid 15 is entirely coated with a layer of sodium silicate in order to promote the spreading of the water at the level of the grid 15 itself.
  • the coating comprises, in addition to the first coating layer 11, a second layer 20 made of a permeable, filamentary and / or fibrous material having hydrophilic and wettability properties.
  • the second layer 20 preferably extends over the entire surface of the first coating layer 11, and is chosen from materials such as glass mat, felt or aramid fibers (NOMEX), mineral fibers, carbon fibers, veranes (fiberglass), metallic fabrics, or expanded micro-metal fabrics.
  • the second layer 20 can be made of a material comprising a mesh of square or diamond shape for example, of average size smaller than the mesh of the grid 15 in order to constitute a second level d bursting and channeling of water drops.
  • the second layer 20 is made of a material including in its structure a thermal conductive element such as metallic paste of aluminum or zinc. This ensures jointly at the second layer 20 both a mechanical distribution of the water drops across the thickness and on the surface of said layer 20, and a pre-vaporization of the water by the additional thermal contribution provided by the metallic paste.
  • the second layer 20 is advantageously made of a material having an average basis weight of between 30 and 500 grams per square meter and preferably between 100 and 150 grams per square meter.
  • the grid 15 is held in abutment against the second layer 20 by any suitable means, and for example using a plate 25 also ensuring the closure of the vaporization chamber 5.
  • the grid 15 forms a cradle (FIG. 2), also extending against the side walls of the vaporization chamber 5, maintained in the compression position by the plate 25.
  • the water coming from the reservoir is poured through the bore 9 into the vaporization chamber 5 and the drops of water undergo a first mechanical burst at the level of the grid 15 and advantageously strips 16a.
  • This first mechanical effect ensures a first distribution of the drops in the vaporization chamber 5.
  • the distribution of the water drops is then accentuated during the passage of the drops at the second layer 20 which undergoes spreading at the surface of said layer, then diffusion and spreading in the thickness of said layer 20.
  • the distribution of the water drops can be considered to be optimal and complete at the level of the coating 11 thus forming the third level of distribution.
  • the fact of using the grid 15 as a compression element ensures, together with the bonding and adhesion properties of the coating 11, a particularly high and stable mechanical strength of the multilayer assembly in the weather.
  • the preferential areas for the diffusion of the water drops were particularly reduced. Indeed, the deflection and the distribution of the water can be considered satisfactory as soon as the drops come into contact with the grid 15, each opening 17 channeling the drops of water and preventing or at least greatly limiting any transverse movements of the drops of water. Good results are obtained with the combination of a grid 15 and a coating 11.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)

Abstract

- The present invention relates to a steam iron which includes an ironing sole-plate (1), heating means (4) and a vaporisation chamber (5) provided with a covering (11, 20) promoting the vaporisation of water, characterised in that the vaporisation chamber (5) includes a water-distributing grid (15) above the covering (11, 20). - Steam iron. <IMAGE>

Description

La présente invention se rapporte au domaine technique général des appareils de vaporisation, et en particulier aux fers à repasser à vapeur dans lesquels il est nécessaire d'assurer la vaporisation d'un liquide avant son expulsion sous forme de vapeur.The present invention relates to the general technical field of vaporization apparatus, and in particular to steam irons in which it is necessary to ensure the vaporization of a liquid before its expulsion in the form of vapor.

La présente invention concerne un fer à repasser à vapeur comportant une semelle de repassage, des moyens de chauffe, et une chambre de vaporisation pourvue d'un revêtement favorisant la vaporisation du liquide de repassage, en l'occurence généralement de l'eau.The present invention relates to a steam iron comprising an ironing soleplate, heating means, and a vaporization chamber provided with a coating promoting the vaporization of the ironing liquid, in this case generally water.

Il est déjà connu dans l'art antérieur d'améliorer la qualité de vaporisation de l'eau en appliquant sur le fond de la chambre de vaporisation du fer à repasser, un revêtement, tel que du silicate de sodium. Ce produit, ou d'autres produits équivalents, sont connus pour leurs propriétés hydrophiles et de mouillabilité assurant un étalement et une diffusion de l'eau sur le fond de la chambre de vaporisation. On obtient ainsi une meilleure vaporisation de l'eau, se traduisant par une diminution de l'émission d'eau sous forme liquide par l'intermédiaire de sorties de vapeur situées sous la semelle.It is already known in the prior art to improve the quality of water vaporization by applying to the bottom of the vaporization chamber of the iron, a coating, such as sodium silicate. This product, or other equivalent products, are known for their hydrophilic and wettability properties ensuring spreading and diffusion of water on the bottom of the vaporization chamber. Better water vaporization is thus obtained, resulting in a reduction in the emission of water in liquid form via steam outlets located under the soleplate.

Il s'avère en revanche que le recours à de tels revêtements n'est pas à même d'assurer une bonne qualité de vaporisation, en particulier dans les fers modernes dont les débits de vapeur sont élevés et par exemple égaux ou supérieur à 30 grammes par minute. Ainsi, les revêtements de type silicate de sodium présentent une résistance que l'on peut qualifier d'insuffisante aux chocs thermiques, et une adhérence limitée sur le fond de la chambre de vaporisation. On a également noté une tendance marquée à la dissolution de ces produits dans l'eau diminuant ainsi fortement la durée de vie des fer à repasser.However, it turns out that the use of such coatings is not capable of ensuring a good quality of vaporization, in particular in modern irons whose vapor flow rates are high and for example equal to or greater than 30 grams. per minute. Thus, coatings of the sodium silicate type have a resistance which can be described as insufficient to thermal shock, and limited adhesion to the bottom of the vaporization chamber. There was also a marked trend towards dissolution of these products in water thus greatly reducing the life of the irons.

En outre, il est connu dans l'art antérieur, par l'intermédiaire du document DE-A-3006783, de disposer une grille de fils métalliques directement sur le fond d'une chambre de vaporisation ne comportant pas un revêtement favorisant la vaporisation de l'eau.In addition, it is known in the prior art, via document DE-A-3006783, to have a grid of metal wires directly on the bottom of a vaporization chamber not comprising a coating promoting the vaporization of the water.

Le montage d'une telle grille ne limite cependant pas suffisamment le phénomène de caléfaction et les performances de vaporisation se trouvent ainsi insuffisantes pour une utilisation d'un fer qui nécessite une quantité de vapeur importante.The mounting of such a grid does not however sufficiently limit the phenomenon of heat build-up and the vaporization performance is thus insufficient for the use of an iron which requires a large quantity of steam.

Il a par ailleurs déjà été remarqué que lors des manipulations du fer à repasser survenant au cours de l'opération de repassage, la masse d'eau contenue dans la chambre de vaporisation était soumise à des mouvements continus. De tels mouvements nuisent à une bonne répartition de l'eau, et influent de manière négative sur la quantité d'eau vaporisée.It has moreover already been noted that during the manipulations of the iron occurring during the ironing operation, the mass of water contained in the vaporization chamber was subjected to continuous movements. Such movements interfere with good water distribution, and negatively affect the amount of water sprayed.

L'objet assigné à l'invention vise en conséquence à remédier aux différents inconvénients énumérés précédemment et à fournir un fer à repasser à vapeur dont la qualité de vaporisation est améliorée quelque soit la manipulation ou le mouvement auquel est soumis le fer à repasser.The object assigned to the invention therefore aims to remedy the various drawbacks listed above and to provide a steam iron, the quality of vaporization of which is improved whatever the handling or the movement to which the iron is subjected.

Un autre objet de l'invention vise à fournir un fer à repasser à vapeur dont la répartition de l'eau dans la chambre de vaporisation est améliorée à l'aide de moyens particulièrement simples et efficaces.Another object of the invention is to provide a steam iron, the distribution of water in the vaporization chamber is improved using particularly simple and effective means.

Les objets assignés à l'invention sont atteints à l'aide d'un fer à repasser à vapeur comportant une semelle de repassage, des moyens de chauffe et une chambre de vaporisation pourvue d'un revêtement favorisant la vaporisation de l'eau caractérisé en ce que la chambre de vaporisation comporte au-dessus du revêtement une grille de répartition d'eau.The objects assigned to the invention are achieved using a steam iron comprising an ironing soleplate, heating means and a vaporization chamber provided with a coating promoting the water vaporization characterized in that the vaporization chamber comprises, above the coating, a water distribution grid.

Les caractéristiques et avantages de l'invention ressortiront mieux à la lecture de la description donnée ci-après, à titre d'exemple non limitatif en référence aux dessins annexés dans lesquels :

  • La figure 1 représente selon une vue en perspective éclatée un fer à repasser conforme à l'invention pourvu d'une grille de répartition.
  • La figure 2 représente selon une vue en coupe transversale longitudinale un fer à repasser conforme à l'invention pourvu d'une grille de répartition associée à deux couches de matériaux.
  • La figure 3 montre selon une vue en coupe transversale partielle un détail de réalisation de la structure du fond de la chambre de vaporisation.
The characteristics and advantages of the invention will emerge more clearly on reading the description given below, by way of nonlimiting example with reference to the appended drawings in which:
  • Figure 1 shows an exploded perspective view of an iron according to the invention provided with a distribution grid.
  • Figure 2 shows in a longitudinal cross-sectional view an iron according to the invention provided with a distribution grid associated with two layers of material.
  • Figure 3 shows in a partial cross sectional view a detail of the structure of the bottom of the vaporization chamber.

La figure 1 montre une semelle de fer à repasser conforme à l'invention comportant une semelle de repassage 1 pourvue d'orifices 2 de passage de la vapeur, sur laquelle est fixée, par tout moyen approprié une semelle chauffante 3 métallique pourvue d'un moyen de chauffe 4 constitué par exemple d'une résistance blindée. La semelle chauffante 3 définit intérieurement de manière connue en soi, une chambre de vaporisation 5 reliée par au moins un canal 6 à une série de perforations 7 en relation avec les orifices de vaporisation 2. L'ensemble de la semelle chauffante 3 est destinée à être fermé par une coiffe 8 rapportée sur ladite semelle chauffante 3. La chambre de vaporisation 5 est en relation avec le réservoir du fer à repasser (non représenté aux figures) par l'intermédiaire d'un perçage 9 ménagé à travers la coiffe 8 au dessus de ladite chambre de vaporisation 5.FIG. 1 shows an iron soleplate according to the invention comprising an ironing soleplate 1 provided with orifices 2 for the passage of steam, to which is fixed, by any suitable means, a metallic heating soleplate 3 provided with a heating means 4 consisting for example of an armored resistor. The heating sole 3 defines internally in a manner known per se, a vaporization chamber 5 connected by at least one channel 6 to a series of perforations 7 in relation to the vaporization orifices 2. The entire heating sole 3 is intended to be closed by a cap 8 attached to said heating sole 3. The vaporization chamber 5 is in relation to the reservoir of the iron (not shown in the figures) by means of a bore 9 formed through the cap 8 at above said vaporization chamber 5.

Dans sa variante de réalisation la plus simple, le fer à repasser conforme à l'invention comprend une chambre de vaporisation 5 pourvue d'un revêtement 11 (figures 2 et 3), s'étendant au moins en partie sur le fond de ladite chambre en vue de favoriser la vaporisation de l'eau. Le revêtement Il comporte au moins une couche d'un matériau présentant des propriétés hydrophiles et/ou de mouillabilité destiné à favoriser respectivement, l'étalement de l'eau sur la surface du revêtement 11, et son absorption dans l'épaisseur dudit revêtement. Avantageusement, le revêtement 11 possède également des propriétés de collage favorisant son adhésion sur le fond de la chambre de vaporisation 5. Avantageusement, également, le revêtement 11 sera choisi parmi les matériaux possèdant de bonnes propriétés d'isolation thermique de manière à constituer un frein thermique permettant un abaissement relatif de la température de la chambre de vaporisation 5 en vue de favoriser la vaporisation. Le revêtement 11 forme ainsi une première couche qui peut être choisie avantageusement parmi des matériaux tels que le silicate de sodium, le carbonate de calcium, les peintures ou vernis, les ciments (Fiber Frax), les composés à base de silice, les carbonates, les oxydes métalliques, les émaux, ou les composés susceptibles d'être déposés sous forme de dépôt plasma.In its simplest variant, the iron according to the invention comprises a vaporization chamber 5 provided with a coating 11 (FIGS. 2 and 3), extending at least in part on the bottom of said chamber to promote the vaporization of water. The coating It comprises at least one layer of a material having hydrophilic and / or wettability properties intended to favor respectively, the spreading of water on the surface of the coating 11, and its absorption in the thickness of said coating. Advantageously, the coating 11 also has bonding properties favoring its adhesion to the bottom of the vaporization chamber 5. Advantageously, also, the coating 11 will be chosen from materials having good thermal insulation properties so as to constitute a brake thermal allowing a relative lowering of the temperature of the vaporization chamber 5 in order to promote vaporization. The coating 11 thus forms a first layer which can be advantageously chosen from materials such as sodium silicate, calcium carbonate, paints or varnishes, cements (Fiber Frax), silica-based compounds, carbonates, metal oxides, enamels, or compounds capable of being deposited in the form of plasma deposition.

Dans sa variante la plus simple, la chambre de vaporisation 5 comporte au-dessus du revêtement 11 une grille 15 de répartition d'eau. Cette dernière s'étend de préférence sur la totalité du fond de la chambre de vaporisation 5 et est avantageusement en contact direct avec ledit fond. La grille 15 peut bien évidemment être disposée à distance au-dessus du fond de la chambre de vaporisation 5, et par exemple à 1 ou 2 mm. La grille 15 est pourvue, au moins au droit du percage 9 de moyens 16 de déflection et de répartition de l'eau sur la surface du revêtement 11. De préférence les moyens 16 de réflection et de répartition consistent en une série de lanières 16(a) se projetant au-dessus du plan d'extension inférieur P de la grille 15. La grille 15 définit tel que cela est montré par exemple à la figure 1, une série d'ouvertures 17 formant le maillage de ladite grille 15. De manière avantageuse les lanières 16a entourent au moins partiellement, et de préférence complètement les ouvertures 17. La hauteur des lanières 16a à partir du plan P est avantageusement d'une valeur moyenne comprise entre 0,5 et 5 mm, et de préférence comprise entre 1 et 3 mm. La section transversale des lanières 16a est avantageusement assimilable à un losange dont l'un des sommets est orienté de telle façon qu'il constitue le point le plus haut de la hauteur de la lanière tel que cela est montré à la figure 3. Les deux faces supérieures 16b des lanières 16a constituent ainsi des surfaces de déflection et de répartition de l'eau déstinée à être vaporisée, et répartissent ainsi de manière homogène le volume d'eau dans les ouvertures 17, et en conséquence sur toute la surface de la chambre de vaporisation 5. Les surfaces 16b peuvent bien évidemment être planes ou incurvées, ou même peuvent être irrégulières et par exemple pourvues de crans ou stries. La forme des ouvertures 17 peut être hexagonale, en nid d'abeille, carrée et est de préférence également assimilable à un losange. De préférence, la grille 15 est réalisée en un métal déployé, de préférence en aluminium ou en alliage d'aluminium, ou même à partir de tout autre métal inoxydable.In its simplest variant, the vaporization chamber 5 comprises, above the covering 11, a grid 15 for distributing water. The latter preferably extends over the entire bottom of the vaporization chamber 5 and is advantageously in direct contact with said bottom. The grid 15 can obviously be placed at a distance above the bottom of the vaporization chamber 5, and for example at 1 or 2 mm. The grid 15 is provided, at least in line with the bore 9, with means 16 for deflection and distribution of the water on the surface of the covering 11. Preferably the means 16 for reflection and distribution consist of a series of strips 16 ( a) projecting above the lower extension plane P of the grid 15. The grid 15 defines as shown for example in FIG. 1, a series of openings 17 forming the mesh of said grid 15. Advantageously the strips 16a surround at least partially, and preferably completely, the openings 17. The height strips 16a from the plane P is advantageously of an average value between 0.5 and 5 mm, and preferably between 1 and 3 mm. The cross section of the strips 16a can advantageously be likened to a rhombus, one of the vertices of which is oriented in such a way that it constitutes the highest point of the height of the strap as shown in FIG. 3. The two upper faces 16b of the strips 16a thus constitute deflection and distribution surfaces of the water intended to be vaporized, and thus evenly distribute the volume of water in the openings 17, and consequently over the entire surface of the chamber vaporization 5. The surfaces 16b can obviously be flat or curved, or even can be irregular and for example provided with notches or ridges. The shape of the openings 17 can be hexagonal, honeycomb, square and is preferably also comparable to a rhombus. Preferably, the grid 15 is made of an expanded metal, preferably aluminum or an aluminum alloy, or even from any other stainless metal.

Selon une autre variante de réalisation de l'invention, la grille 15 peut être revêtue, au moins partiellement, d'un matériau hydrophile et possédant des propriétés de mouillabilité. De préférence la grille 15 est revêtue en totalité d'une couche de silicate de sodium afin de favoriser l'étalement de l'eau au niveau même de la grille 15.According to another alternative embodiment of the invention, the grid 15 can be coated, at least partially, with a hydrophilic material and having wettability properties. Preferably, the grid 15 is entirely coated with a layer of sodium silicate in order to promote the spreading of the water at the level of the grid 15 itself.

Selon une autre variante de réalisation, tel que montré à la figure 1 le revêtement comporte outre la première couche de revêtement 11, une seconde couche 20 constituée d'un matériau perméable, filamenteux et/ou fibreux présentant des propriétés hydrophiles et de mouillabilité. La seconde couche 20 s'étend de préférence sur la totalité de la surface de la première couche de revêtement 11, et est choisie parmi des matériaux tels que du mat de verre, des feutres ou fibres aramides (NOMEX), des fibres minérales, des fibres de carbone, des veranes (fibre de verre), des tissus métalliques, ou des tissus de micro-métal déployé. tel que cela est montré à la figure 1, la seconde couche 20 peut être constituée d'un matériau comportant un maillage de forme carré ou en losange par exemple, de dimension moyenne inférieure au maillage de la grille 15 afin de constituer un second niveau d'éclatement et de canalisation des gouttes d'eau. Avantageusement, également, la seconde couche 20 est réalisée en un matériau incluant dans sa structure un élément conducteur thermique tel que de la pâte métallique d'aluminium ou de zinc. On assure ainsi de manière conjointe au niveau de la seconde couche 20 à la fois une répartition mécanique des gouttes d'eau à travers l'épaisseur et à la surface de ladite couche 20, et une pré-vaporisation de l'eau par l'apport thermique complémentaire procuré par la pâte métallique. La seconde couche 20 est avantageusement réalisée dans un matériau comportant un grammage moyen compris entre 30 et 500 grammes par mètre carré et de préférence entre 100 et 150 grammes par mètre carré.According to another alternative embodiment, as shown in FIG. 1, the coating comprises, in addition to the first coating layer 11, a second layer 20 made of a permeable, filamentary and / or fibrous material having hydrophilic and wettability properties. The second layer 20 preferably extends over the entire surface of the first coating layer 11, and is chosen from materials such as glass mat, felt or aramid fibers (NOMEX), mineral fibers, carbon fibers, veranes (fiberglass), metallic fabrics, or expanded micro-metal fabrics. as shown in FIG. 1, the second layer 20 can be made of a material comprising a mesh of square or diamond shape for example, of average size smaller than the mesh of the grid 15 in order to constitute a second level d bursting and channeling of water drops. Advantageously, also, the second layer 20 is made of a material including in its structure a thermal conductive element such as metallic paste of aluminum or zinc. This ensures jointly at the second layer 20 both a mechanical distribution of the water drops across the thickness and on the surface of said layer 20, and a pre-vaporization of the water by the additional thermal contribution provided by the metallic paste. The second layer 20 is advantageously made of a material having an average basis weight of between 30 and 500 grams per square meter and preferably between 100 and 150 grams per square meter.

La grille 15 est maintenue en appui contre la seconde couche 20 par tout moyen approprié, et par exemple à l'aide d'une plaque 25 assurant également la fermeture de la chambre de vaporisation 5. Dans un tel cas la grille 15 forme un berceau (figure 2), s'étendant également contre les parois latérales de la chambre de vaporisation 5, maintenu en position de compression par la plaque 25.The grid 15 is held in abutment against the second layer 20 by any suitable means, and for example using a plate 25 also ensuring the closure of the vaporization chamber 5. In such a case the grid 15 forms a cradle (FIG. 2), also extending against the side walls of the vaporization chamber 5, maintained in the compression position by the plate 25.

Le fonctionnement de la semelle de fer à repasser montée dans un fer à repasser conforme à une version préférentielle de l'invention est le suivant.The operation of the iron soleplate mounted in an iron according to a preferred version of the invention is as follows.

L'eau provenant du réservoir se déverse par le percage 9 dans la chambre de vaporisation 5 et les gouttes d'eau subissent un premier éclatement mécanique au niveau de la grille 15 et avantageusement des lanières 16a. Ce premier effet mécanique assure une première répartition des gouttes dans la chambre de vaporisation 5. La répartition des gouttes d'eau est ensuite accentuée lors du passage des gouttes au niveau de la seconde couche 20 qui subissent un étalement au niveau de la surface de ladite couche, puis une diffusion et un étalement dans l'épaisseur de ladite couche 20. Enfin , la répartition des gouttes d'eau peut être considérée comme optimale et complète au niveau du revêtement 11 formant ainsi le troisième niveau de répartition. Par ailleurs il s'avère que le fait d'utiliser la grille 15 en tant qu'élément de compression assure, conjointement aux propriétés de collage et d'adhésion du revêtement 11, une tenue mécanique de l'ensemble multicouches particulièrement élevée et stable dans le temps. Il a enfin pu être constaté que quelque soit les manipulations et déplacements du fer à repasser durant l'opération de repassage, les zones préférentielles de diffusion des gouttes d'eau étaient particulièrement réduite. En effet, la déflection et la répartition de l'eau peut être considérée comme satisfaisante dès le contact des gouttes au niveau de la grille 15, chaque ouverture 17 canalisant les gouttes d'eau et empêchant ou du moins limitant fortement tous déplacements transversaux des gouttes d'eau. De bons résultats sont obtenus avec la combinaison d'une grille 15 et d'un revêtement 11.The water coming from the reservoir is poured through the bore 9 into the vaporization chamber 5 and the drops of water undergo a first mechanical burst at the level of the grid 15 and advantageously strips 16a. This first mechanical effect ensures a first distribution of the drops in the vaporization chamber 5. The distribution of the water drops is then accentuated during the passage of the drops at the second layer 20 which undergoes spreading at the surface of said layer, then diffusion and spreading in the thickness of said layer 20. Finally, the distribution of the water drops can be considered to be optimal and complete at the level of the coating 11 thus forming the third level of distribution. Furthermore, it turns out that the fact of using the grid 15 as a compression element ensures, together with the bonding and adhesion properties of the coating 11, a particularly high and stable mechanical strength of the multilayer assembly in the weather. Finally, it was found that whatever the manipulations and movements of the iron during the ironing operation, the preferential areas for the diffusion of the water drops were particularly reduced. Indeed, the deflection and the distribution of the water can be considered satisfactory as soon as the drops come into contact with the grid 15, each opening 17 channeling the drops of water and preventing or at least greatly limiting any transverse movements of the drops of water. Good results are obtained with the combination of a grid 15 and a coating 11.

Il est bien évident que l'ensemble des matériaux utilisés doivent être choisis de manière à résister aux contraintes thermiques classiques impliquées dans tout fer à repasser.It is quite obvious that all of the materials used must be chosen so as to withstand the conventional thermal stresses involved in any iron.

Claims (16)

Fer à repasser à vapeur comportant une semelle de repassage (1), des moyens de chauffe (4) et une chambre de vaporisation (5) pourvue d'un revêtement (11,20) favorisant la vaporisation de l'eau caractérisé en ce que la chambre de vaporisation (5) comporte au-dessus du revêtement (11,20) une grille (15) de répartition d'eau.Steam iron comprising an ironing soleplate (1), heating means (4) and a vaporization chamber (5) provided with a coating (11,20) promoting the vaporization of water, characterized in that the vaporization chamber (5) comprises, above the covering (11, 20), a grid (15) for distributing water. Fer à repasser selon la revendication 1 caractérisé en ce que la grille (15) est pourvue de moyens (16) de déflection et de répartition de l'eau au dessus et sur la surface du revêtement (11,20).Iron according to claim 1 characterized in that the grid (15) is provided with means (16) for deflecting and distributing the water above and on the surface of the coating (11,20). Fer à repasser selon la revendication 2 caractérisé en ce que les moyens (16) de déflection et de répartition consistent en une série de lanières (16a) se projetant au-dessus du plan d'extension (P) de la grille (15).Iron according to claim 2, characterized in that the deflection and distribution means (16) consist of a series of strips (16a) projecting above the extension plane (P) of the grid (15). Fer à repasser selon la revendication 3 caractérisé en ce que les lanières (16a) entourent au moins partiellement les ouvertures (17) formant le maillage de la grille (15).Iron according to claim 3 characterized in that the strips (16a) at least partially surround the openings (17) forming the grid of the grid (15). Fer à repasser selon l'une des revendications 3 à 4 caractérisé en ce que les lanières (16a) ont une hauteur moyenne comprise entre 0,5 et 5 mm, et de préférence entre 1 et 3 mm.Iron according to one of Claims 3 to 4, characterized in that the strips (16a) have an average height of between 0.5 and 5 mm, and preferably between 1 and 3 mm. Fer à repasser selon l'une des revendications 1 à 5 caractérisé en ce que la grille (15) est revêtue d'un matériau hydrophile et possédant des propriétés de mouillabilité, de préférence tel que du silicate de sodium, pour favoriser l'étalement de l'eau.Iron according to one of claims 1 to 5 characterized in that the grid (15) is coated with a hydrophilic material and having wettability properties, preferably such as sodium silicate, to promote the spreading of the water. Fer à repasser selon l'une des revendications 1 à 6 caractérisé en ce que la grille (15) est en appui direct contre le revêtement (11).Iron according to one of claims 1 to 6 characterized in that the grid (15) bears directly against the covering (11). Fer à repasser selon l'une des revendications 1 à 7 caractérisé en ce que la grille (15) est réalisée en un métal déployé, de préférence en aluminium ou en alliage d'aluminium.Iron according to one of claims 1 to 7 characterized in that the grid (15) is made of an expanded metal, preferably aluminum or aluminum alloy. Fer à repasser selon l'une des revendications 1 à 8 caractérisé en ce que le revêtement (11,20) comporte au moins une couche d'un matériau présentant des propriétés hydrophiles et/ou de mouillabilité.Iron according to one of Claims 1 to 8, characterized in that the coating (11,20) comprises at least one layer of a material having hydrophilic and / or wettability properties. Fer à repasser selon la revendication 9 caractérisé en ce que le revêtement (11,20) comprend une première couche (11) d'un matériau présentant des propriétés hydrophiles, de mouillabilité, d'isolation thermique et de collage, sur laquelle adhère une seconde couche (20) d'un matériau perméable, filamenteux et/ou fibreux présentant des propriétés hydrophiles et de mouillabilité.Iron according to claim 9 characterized in that the coating (11,20) comprises a first layer (11) of a material having hydrophilic properties, wettability, thermal insulation and bonding, on which a second adheres layer (20) of a permeable, filamentary and / or fibrous material having hydrophilic and wettability properties. Fer à repasser selon la revendication 10 caractérisé en ce que le matériau de la première couche (11) est choisi parmi le silicate de sodium, le carbonate de calcium, les peintures ou vernis, les ciments, les composés à base de silice, les carbonates, les oxydes métalliques, les émaux ou les composés susceptibles d'être déposés sous forme de dépôt plasma.Iron according to claim 10 characterized in that the material of the first layer (11) is chosen from sodium silicate, calcium carbonate, paints or varnishes, cements, silica-based compounds, carbonates , metal oxides, enamels or compounds capable of being deposited in the form of plasma deposition. Fer à repasser selon la revendication 10 caractérisé en ce que le matériau de la seconde couche (20) est choisi parmi des matériaux tels que : du mat du verre, des feutres ou fibres arramides, des fibres minérales, des fibres de carbone, des verannes, des tissus métalliques, des tissus de micro-métal déployé.Iron according to claim 10 characterized in that the material of the second layer (20) is chosen from among materials such as: glass mat, felt or aramid fibers, mineral fibers, carbon fibers, verannes , metallic fabrics, expanded micro-metal fabrics. Fer à repasser selon l'une des revendications 10 à 12 caractérisé en ce que la seconde couche (20) est réalisée en un matériau incluant dans sa structure un élément conducteur thermique, tel que de la pâte métallique d'aluminium ou de zinc.Iron according to one of claims 10 to 12 characterized in that the second layer (20) is made of a material including in its structure a thermal conductive element, such as metallic paste of aluminum or zinc. Fer à repasser selon l'une des revendications 10 à 13 caractérisé en ce que la seconde couche (20) est réalisée dans un matériau d'un grammage compris entre 30 et 500 g/m2 et de préférence entre 100 et 150 g/m2.Iron according to one of claims 10 to 13 characterized in that the second layer (20) is made of a material with a grammage between 30 and 500 g / m2 and preferably between 100 and 150 g / m2. Fer à repasser selon l'une des revendications 10 à 14 caractérisé en ce que la seconde couche est constituée d'un matériau comportant un maillage de dimension moyenne inférieure au maillage de la grille (15).Iron according to one of Claims 10 to 14, characterized in that the second layer consists of a material comprising a mesh of average size smaller than the mesh of the grid (15). Fer à repasser selon l'une des revendications précédentes caractérisé en ce que la grille (15) forme un berceau maintenu en position de compression contre la seconde couche (20).Iron according to one of the preceding claims, characterized in that the grid (15) forms a cradle held in the compression position against the second layer (20).
EP93420386A 1992-09-29 1993-09-24 Steam iron comprising a grid for distributing the water Expired - Lifetime EP0592334B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9211926A FR2696197B1 (en) 1992-09-29 1992-09-29 Iron with vaporization chamber provided with a water distribution grid.
FR9211926 1992-09-29
US08/128,067 US5390432A (en) 1992-09-29 1993-09-28 Water distribution screen on a coated steam iron vaporization chamber

Publications (2)

Publication Number Publication Date
EP0592334A1 true EP0592334A1 (en) 1994-04-13
EP0592334B1 EP0592334B1 (en) 1998-01-21

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EP93420386A Expired - Lifetime EP0592334B1 (en) 1992-09-29 1993-09-24 Steam iron comprising a grid for distributing the water

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US (1) US5390432A (en)
EP (1) EP0592334B1 (en)
DE (1) DE69316508T2 (en)
ES (1) ES2114023T3 (en)
FR (1) FR2696197B1 (en)

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WO2001068971A1 (en) * 2000-03-15 2001-09-20 Seb S.A. Iron vaporisation chamber coating
ES2402608R1 (en) * 2010-10-08 2013-05-30 Bsh Electrodomesticos Espana IRONING SOLE FOR A STEAM IRONING DEVICE, AND SUCH DEVICE
CN103882667A (en) * 2012-12-21 2014-06-25 Seb公司 Steam ironing appliance comprising a pressurised steam generator and an iron
FR3063747A1 (en) * 2017-03-13 2018-09-14 Seb S.A. STEAM APPARATUS WITH REMOVABLE FILTRATION ELEMENT

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US5615500A (en) * 1995-11-03 1997-04-01 Black & Decker Inc. Iron with improved connection of soleplate and steam chamber cover
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DE10014815A1 (en) * 2000-03-27 2001-10-11 Rowenta Werke Gmbh Physicochemical scale prevention device with a flake preventing grid for steam irons
ATE495009T1 (en) * 2003-04-25 2011-01-15 Koninkl Philips Electronics Nv COATING FOR STEAM GENERATING DEVICE
GB0901855D0 (en) * 2009-02-05 2009-03-11 Strix Ltd Electric steam generation
FR2979923B1 (en) * 2011-09-09 2015-01-09 Seb Sa IRON IRON COMPRISING A STEAM DISTRIBUTION CIRCUIT COMPRISING A FILTRATION GRID
EP2674529A1 (en) 2012-06-12 2013-12-18 Koninklijke Philips N.V. Steam iron with a steam-permeable screen
RU2655255C2 (en) * 2013-07-25 2018-05-24 Конинклейке Филипс Н.В. Steam iron
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WO2001068971A1 (en) * 2000-03-15 2001-09-20 Seb S.A. Iron vaporisation chamber coating
FR2806427A1 (en) * 2000-03-15 2001-09-21 Seb Sa IRON STEAM CHAMBER COATING
US6684539B2 (en) 2000-03-15 2004-02-03 Seb S.A. Iron vaporization chamber coating
ES2402608R1 (en) * 2010-10-08 2013-05-30 Bsh Electrodomesticos Espana IRONING SOLE FOR A STEAM IRONING DEVICE, AND SUCH DEVICE
CN103882667A (en) * 2012-12-21 2014-06-25 Seb公司 Steam ironing appliance comprising a pressurised steam generator and an iron
FR3063747A1 (en) * 2017-03-13 2018-09-14 Seb S.A. STEAM APPARATUS WITH REMOVABLE FILTRATION ELEMENT
WO2018167408A1 (en) * 2017-03-13 2018-09-20 Seb S.A. Steam appliance provided with a removable filtration element

Also Published As

Publication number Publication date
ES2114023T3 (en) 1998-05-16
EP0592334B1 (en) 1998-01-21
DE69316508D1 (en) 1998-02-26
FR2696197A1 (en) 1994-04-01
FR2696197B1 (en) 1994-11-25
US5390432A (en) 1995-02-21
DE69316508T2 (en) 1998-06-10

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