EP1114889B1 - Iron sole with a surface blast-treated with microspheres - Google Patents

Iron sole with a surface blast-treated with microspheres Download PDF

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Publication number
EP1114889B1
EP1114889B1 EP00420262A EP00420262A EP1114889B1 EP 1114889 B1 EP1114889 B1 EP 1114889B1 EP 00420262 A EP00420262 A EP 00420262A EP 00420262 A EP00420262 A EP 00420262A EP 1114889 B1 EP1114889 B1 EP 1114889B1
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EP
European Patent Office
Prior art keywords
smoothing
soleplate
metal
sole
iron
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EP00420262A
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German (de)
French (fr)
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EP1114889A1 (en
Inventor
Axel Wehrwein
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Rowenta Werke GmbH
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Rowenta Werke GmbH
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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
    • D06F75/38—Sole plates

Definitions

  • the present invention relates to electric irons, including the sole is made up of a metallic foil possibly raised on its edges and whose underside, the iron being flat in the ironing position, constitutes with the outside of the edges the working face in contact with the ironed linen.
  • AT these soles is generally associated with a heating body, most often in aluminum, which includes the heating element of the iron.
  • the soles must have a good presentation, good resistance to corrosion, good sliding properties on the laundry, and a hardness of surface that makes them resistant to scratching. This scratch resistance is necessary to maintain the sliding qualities and to resist improper uses, such as passing iron over the zippers.
  • the document US2750691 describes an iron having a massive sole, comprising a vaporization chamber, the ironing surface of which has been hammered by large steel balls.
  • the fingerprints of the beads meet and facilitate the distribution of steam under the sole. But this technique of hammering cannot be applied to a thin sole under penalty of deformation excessive.
  • Patent EP726351 describes a means more specially adapted to soles aluminum, in which the internal and external surfaces are treated by “shot peening "with a jet of abrasive particles entrained in an air jet, in the sole purpose of improving its flatness.
  • Patent FR2567929 shows an aluminum surface reinforced by a stainless steel plate. Stainless steel surfaces are not not corrode easily, have a good presentation which can be finished glossy and have acceptable sliding properties, so they are the most often used without surface treatment, other than a possible finish by polishing.
  • the object of the invention below is an iron, the work surface of which the metallic sole, preferably made of stainless steel, has a improved coefficient of friction and high hardness to improve the resistance to scratching and slipping on linen.
  • the object of the invention is achieved by an iron soleplate iron composed of a metal sheet due to the fact that its work surface presents grains deformed by compression perpendicular to the surface, the number of metal dislocations per unit of volume being at least greater minus 40% to that of the metal at the heart of the sole.
  • metallic dislocations is meant structural discontinuities metallic, whether between metallic grains or made up of defects within the grains.
  • the core of the sole is intended for a region of the metal remote from surfaces, to a depth greater than 40 micrometers.
  • the surface compression of the surface makes it smooth, decreases the coefficient of surface friction on the laundry and clogs the pores that could Preexisting. Compression also increases hardness and creates internal stresses which oppose an attack on the external surface.
  • the compressed thickness of the metal measured from the surface, is between 25 and 35 micrometers.
  • This thickness varies according to the setting of the method of obtaining the compression. We choose a compromise between high hardness, which requires compression over a great depth but where a correct surface condition is difficult to obtain, and a good surface condition which conditions the sliding.
  • the sole is made of stainless steel and has a surface of Vickers hardness at least 25% higher than Vickers hardness measured at the heart of the metal.
  • the hardness at the core, or at the core of the metal means for a metallic zone located deep in the metal, beyond the compressed thickness. She is equal to the hardness of the metal before treatment.
  • the surface area of stainless steel with Vickers hardness less than 400 at core has a Vickers hardness greater than 500 at the surface, i.e. minimum 25% increase in hardness.
  • the roughness of the work surface measured according to the standard DIN4777 is less than 3 micrometers
  • the compression of the stainless steel surface is obtained by a "shot peening" process.
  • This process involves the projection of essentially non-abrasive particles on the surface, the particles being entrained in an air jet, the air being prior to its use compressed to a pressure of the order of two bars. Hammering of the surface by particles produces compression metallic grains constituting stainless steel. The particle cloud produces a very regular effect and is much easier to control than burnish for example. This process is also more applicable convenient to the edges of the sole than other mechanical processes.
  • the treatment of the surface by "shot peening" is carried out in one single operation.
  • the particles used are a mixture of glass beads, ceramic beads, and natural organic granular materials.
  • This mixture makes it possible to measure the hammering of the surface by producing various impacts producing both the smoothing of the surface and its deep deformation.
  • Figure 1 is a view of an iron according to the invention, in partial section by a longitudinal vertical plane.
  • Figure 2 is a diagram of the process for obtaining the compressed area in the sole.
  • Figure 3 is a micrographic section of the sole according to the invention in near the work surface.
  • the iron with steam 1 has a sole 2 made of a stainless steel sheet about 0.5 millimeters thick.
  • the sole 2 is raised on its edges 3.
  • the lower planar face 4 mainly, and the edges 3, are in contact with ironing linen and constitute the work surface.
  • Sole 2 is in intimate contact via its upper face 5 internal to the iron with a heating block 6 fitted with a heating element 7.
  • Sole 2 seen in micrographic section by an electronic microscope as illustrated in Figure 3 presents from the work surface 4 a area where the metal grains are deformed and compressed, this on a depth from 30 to 32 micrometers.
  • the roughness obtained in this example is of the order of two micrometers. A finer roughness could be achieved by a longer treatment time or weaker compression action.
  • the area of sole work is presented, as illustrated in figure 2, after forming edges and vapor holes under a jet of particles 100 transported by an air jet from a nozzle 101.
  • the nozzle is at a short distance, about 100 millimeters, of sole 2, which is displaced in its plane longitudinally following the arrows 102 and transversely, so that the jet interests the entire working surface of the sole.
  • the jet of 100 particles is flat, obtainable by several nozzles, its width is greater than or equal to the width of the sole and movement takes place only in the longitudinal direction.
  • the bottom surface of the sole is made slightly concave to the forming, so that after treatment it is applied correctly against the body heating 6.
  • the mixture of particles comprises a majority of glass beads, with additional ceramic beads by example in zirconia or aluminum oxide, and organic ground particles for example, nutshells, almonds, coconuts.
  • additional ceramic beads by example in zirconia or aluminum oxide
  • organic ground particles for example, nutshells, almonds, coconuts.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Catalysts (AREA)
  • Powder Metallurgy (AREA)
  • Compounds Of Iron (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

The working surface (1) of steel or stainless steel soleplate (2) is composed of crystal grains that are deformed by compression, applied perpendicular to the surface. The dislocation per unit volume is 40% greater on the surface than that in the interior of soleplate. An Independent claim is also included for process of treating metal soleplate.

Description

La présente invention concerne les fers à repasser électriques, dont la semelle est composée d'une feuille métallique éventuellement relevée sur ses bords et dont la face inférieure, le fer étant à plat en position de repassage, constitue avec l'extérieur des bords la face de travail en contact avec le linge repassé. A ces semelles est généralement associé un corps chauffant, le plus souvent en aluminium, qui inclut l'élément chauffant du fer à repasser.The present invention relates to electric irons, including the sole is made up of a metallic foil possibly raised on its edges and whose underside, the iron being flat in the ironing position, constitutes with the outside of the edges the working face in contact with the ironed linen. AT these soles is generally associated with a heating body, most often in aluminum, which includes the heating element of the iron.

Les semelles doivent avoir une bonne présentation, une bonne résistance à la corrosion, de bonnes propriétés de glissement sur le linge, et une dureté de surface qui les rend résistantes à la rayure. Cette résistance à la rayure est nécessaire pour maintenir les qualités de glisse et pour résister à des utilisations malencontreuses, comme par exemple le passage du fer sur les fermetures éclair.The soles must have a good presentation, good resistance to corrosion, good sliding properties on the laundry, and a hardness of surface that makes them resistant to scratching. This scratch resistance is necessary to maintain the sliding qualities and to resist improper uses, such as passing iron over the zippers.

A cette fin de nombreux traitements de surface ont été proposés. On connaít entre autres les traitements de semelles en aluminium ou en acier dans lesquels la surface est recouverte d'un émail. On connaít également les surfaces revêtues d'une céramique par projection plasma comme dans le brevet EP227111 ou par tout autre procédé par exemple par anodisation comme dans le brevet FR2717833. Des surfaces ont été proposées également avec un traitement chimique par exemple une phosphatation qui améliore la résistance à la corrosion et facilite le glissement. On connaít aussi les surfaces revêtues d'un produit tel que le PTFE (polytétrafluoroéthylène).To this end, numerous surface treatments have been proposed. We know among other treatments of aluminum or steel soles in which the surface is covered with enamel. We also know the surfaces coated with ceramic by plasma spraying as in patent EP227111 or by any other process, for example by anodization as in patent FR2717833. Surfaces have also been proposed with a chemical treatment for example a phosphatation which improves the corrosion resistance and facilitates sliding. We also know the surfaces coated with a product such as PTFE (polytetrafluoroethylene).

Le document US2750691 décrit un fer à repasser ayant une semelle massive, comprenant une chambre de vaporisation, dont la surface de repassage a été martelée par de grosses billes d'acier. Les empreintes des billes se rejoignent et facilitent la distribution de vapeur sous la semelle. Mais cette technique de martelage ne peut s'appliquer à une semelle mince sous peine de déformations excessives.The document US2750691 describes an iron having a massive sole, comprising a vaporization chamber, the ironing surface of which has been hammered by large steel balls. The fingerprints of the beads meet and facilitate the distribution of steam under the sole. But this technique of hammering cannot be applied to a thin sole under penalty of deformation excessive.

Le brevet EP726351 décrit un moyen plus spécialement adapté aux semelles en aluminium, dans lequel les surfaces interne et externe sont traitées par "shot peening" avec un jet de particules abrasives entraínées dans un jet d'air, dans le seul but d'en améliorer la planéité.Patent EP726351 describes a means more specially adapted to soles aluminum, in which the internal and external surfaces are treated by "shot peening "with a jet of abrasive particles entrained in an air jet, in the sole purpose of improving its flatness.

Ces traitements sont particulièrement utiles sur des surfaces tendres telles que des surfaces d'aluminium, ou des surfaces d'acier pour aussi les protéger de la corrosion. Le brevet FR2567929 montre une surface d'aluminium renforcée par une plaque en acier inoxydable. Les surfaces d'acier inoxydable ne se corrodent pas facilement, ont une bonne présentation qui peut être un fini brillant et ont des propriétés de glissement acceptables, aussi sont elles le plus souvent employées sans traitement de surface, autre qu'une éventuelle finition par polissage.These treatments are particularly useful on soft surfaces such as aluminum surfaces, or steel surfaces to also protect them from corrosion. Patent FR2567929 shows an aluminum surface reinforced by a stainless steel plate. Stainless steel surfaces are not not corrode easily, have a good presentation which can be finished glossy and have acceptable sliding properties, so they are the most often used without surface treatment, other than a possible finish by polishing.

Cependant l'acier inoxydable bien que plus tenace reste tout de même à la longue sensible à la rayure, et la finition peut être détériorée ce qui oblige aussi à protéger les semelles sur les points de vente par un film plastique. En outre, il est souhaitable d'améliorer le coefficient de frottement de la semelle sur le linge.However stainless steel although more tenacious still remains at the long sensitive to scratching, and the finish can be deteriorated which also forces protect the soles at the point of sale with plastic film. Furthermore, it it is desirable to improve the coefficient of friction of the sole on the laundry.

Le but de l'invention ci après est un fer à repasser dont la surface de travail de la semelle métallique, de préférence en acier inoxydable, présente un coefficient de frottement amélioré et une dureté élevée pour améliorer la résistance à la rayure et le glissement sur le linge.The object of the invention below is an iron, the work surface of which the metallic sole, preferably made of stainless steel, has a improved coefficient of friction and high hardness to improve the resistance to scratching and slipping on linen.

Principalement, l'objet de l'invention est atteint par une semelle de fer à repasser composée d'une feuille métallique du fait que sa surface de travail présente des grains déformés par compression perpendiculaire à la surface, le nombre de dislocations métalliques par unité de volume étant supérieur d'au moins 40% à celle du métal au coeur de la semelle.Mainly, the object of the invention is achieved by an iron soleplate iron composed of a metal sheet due to the fact that its work surface presents grains deformed by compression perpendicular to the surface, the number of metal dislocations per unit of volume being at least greater minus 40% to that of the metal at the heart of the sole.

Par dislocations métalliques on entend des discontinuités de structure métalliques, qu'elles soient entre grains métalliques ou constituées de défauts au sein des grains.By metallic dislocations is meant structural discontinuities metallic, whether between metallic grains or made up of defects within the grains.

Le coeur de la semelle s'entend pour une région du métal éloignée des surfaces, à une profondeur supérieure à 40 micromètres.The core of the sole is intended for a region of the metal remote from surfaces, to a depth greater than 40 micrometers.

La compression superficielle de la surface la rend lisse, diminue le coefficient de frottement de la surface sur le linge et bouche les pores qui pouvaient préexister. La compression augmente aussi la dureté et engendre des contraintes internes qui s'opposent à une agression de la surface extérieure.The surface compression of the surface makes it smooth, decreases the coefficient of surface friction on the laundry and clogs the pores that could Preexisting. Compression also increases hardness and creates internal stresses which oppose an attack on the external surface.

De préférence l'épaisseur comprimée du métal, mesurée à partir de la surface, est comprise entre 25 et 35 micromètres.Preferably the compressed thickness of the metal, measured from the surface, is between 25 and 35 micrometers.

Cette épaisseur varie suivant le réglage du mode d'obtention de la compression. On choisit un compromis entre la dureté élevée, qui nécessite une compression sur une grande profondeur mais où un état de surface correct est difficile à obtenir, et un bon état de surface qui conditionne le glissement.This thickness varies according to the setting of the method of obtaining the compression. We choose a compromise between high hardness, which requires compression over a great depth but where a correct surface condition is difficult to obtain, and a good surface condition which conditions the sliding.

De préférence, la semelle est en acier inoxydable et présente en surface de travail une dureté Vickers supérieure d'au moins 25% à la dureté Vickers mesurée au coeur du métal.Preferably, the sole is made of stainless steel and has a surface of Vickers hardness at least 25% higher than Vickers hardness measured at the heart of the metal.

La dureté à coeur, ou au coeur du métal, s'entend pour une zone métallique située en profondeur dans le métal, au-delà de l'épaisseur comprimée. Elle est égale à la dureté du métal avant traitement.The hardness at the core, or at the core of the metal, means for a metallic zone located deep in the metal, beyond the compressed thickness. She is equal to the hardness of the metal before treatment.

Par exemple, la surface d'un acier inoxydable de dureté Vickers inférieure à 400 à coeur présente une dureté Vickers supérieure à 500 en surface, soit une augmentation minimale de 25% de la dureté.For example, the surface area of stainless steel with Vickers hardness less than 400 at core has a Vickers hardness greater than 500 at the surface, i.e. minimum 25% increase in hardness.

De préférence la rugosité de la surface de travail mesurée suivant la norme DIN4777 est inférieure à 3 micromètresPreferably the roughness of the work surface measured according to the standard DIN4777 is less than 3 micrometers

On obtient ainsi une semelle métallique de bonne résistance à la rayure et glissant bien sur le linge.This gives a metallic sole with good scratch resistance and sliding well on the laundry.

De préférence, la compression de la surface en acier inoxydable est obtenue par un procédé de "shot peening".Preferably, the compression of the stainless steel surface is obtained by a "shot peening" process.

Ce procédé comporte la projection de particules essentiellement non abrasives sur la surface, les particules étant entraínées dans un jet de détente d'air, l'air étant préalablement à son utilisation comprimé à une pression de l'ordre de deux bars. Le martelage de la surface par les particules produit la compression des grains métalliques constituant l'acier inoxydable. Le nuage de particules produit un effet très régulier et est beaucoup plus facile à contrôler qu'un galetage par exemple. Ce procédé s'applique également de façon plus commode aux bords de la semelle que d'autres procédés mécaniques.This process involves the projection of essentially non-abrasive particles on the surface, the particles being entrained in an air jet, the air being prior to its use compressed to a pressure of the order of two bars. Hammering of the surface by particles produces compression metallic grains constituting stainless steel. The particle cloud produces a very regular effect and is much easier to control than burnish for example. This process is also more applicable convenient to the edges of the sole than other mechanical processes.

De préférence le traitement de la surface par "shot peening" s'effectue en une seule opération.Preferably the treatment of the surface by "shot peening" is carried out in one single operation.

En particulier il n'y a pas d'abrasion préliminaire, ni de traitement thermique de l'acier inoxydable. La projection se fait à température ambiante. Ceci permet un traitement peu coûteux.In particular there is no preliminary abrasion, nor heat treatment of stainless steel. The projection is done at room temperature. This allows a inexpensive treatment.

De préférence, les particules utilisées sont un mélange de billes de verre, de billes céramiques, et de matériaux granuleux organiques naturels.Preferably, the particles used are a mixture of glass beads, ceramic beads, and natural organic granular materials.

Ce mélange permet de doser le martelage de la surface en produisant des impacts divers produisant aussi bien le lissage de la surface que sa déformation en profondeur.This mixture makes it possible to measure the hammering of the surface by producing various impacts producing both the smoothing of the surface and its deep deformation.

L'invention sera mieux comprise au vu de l'exemple ci après et des dessins annexés.The invention will be better understood on the basis of the example below and of the drawings attached.

La figure 1 est une vue d'un fer à repasser selon l'invention, en section partielle par un plan vertical longitudinal.Figure 1 is a view of an iron according to the invention, in partial section by a longitudinal vertical plane.

La figure 2 est un schéma du procédé d'obtention de la zone comprimée dans la semelle.Figure 2 is a diagram of the process for obtaining the compressed area in the sole.

La figure 3 est une coupe micrographique de la semelle selon l'invention au voisinage de la surface de travail.Figure 3 is a micrographic section of the sole according to the invention in near the work surface.

Dans une réalisation particulière illustrée sur la figure 1 le fer à repasser à vapeur 1 comporte une semelle 2 composée d'une tôle d'acier inoxydable d'environ 0,5 millimètres d'épaisseur. La semelle 2 est relevée sur ses bords 3. La face plane inférieure 4 principalement, et les bords 3, sont en contact avec le linge au repassage et constituent la surface de travail. La semelle 2 est en contact intime par sa face supérieure 5 interne au fer avec un bloc de chauffe 6 muni d'un élément chauffant 7.In a particular embodiment illustrated in FIG. 1, the iron with steam 1 has a sole 2 made of a stainless steel sheet about 0.5 millimeters thick. The sole 2 is raised on its edges 3. The lower planar face 4 mainly, and the edges 3, are in contact with ironing linen and constitute the work surface. Sole 2 is in intimate contact via its upper face 5 internal to the iron with a heating block 6 fitted with a heating element 7.

La semelle 2 vue en coupe micrographique par un microscope électronique comme illustré sur la figure 3 présente à partir de la surface de travail 4 une zone où les grains métalliques sont déformés et comprimés, ceci sur une profondeur de 30 à 32 micromètres.Sole 2 seen in micrographic section by an electronic microscope as illustrated in Figure 3 presents from the work surface 4 a area where the metal grains are deformed and compressed, this on a depth from 30 to 32 micrometers.

A proximité immédiate de la surface 4 on voit bien que la densité des dislocations est sensiblement 1,5 fois celle qu'on mesure vers l'intérieur de la semelle.In the immediate vicinity of surface 4 we can clearly see that the density of dislocations is approximately 1.5 times that measured towards the interior of the sole.

La rugosité obtenue dans cet exemple est de l'ordre de deux micromètres. Une rugosité plus fine pourrait être atteinte par un temps de traitement plus long ou une action de compression plus faible.The roughness obtained in this example is of the order of two micrometers. A finer roughness could be achieved by a longer treatment time or weaker compression action.

Dans une version préférentielle, pour obtenir ce type de résultat, la surface de travail de la semelle est présentée, comme illustré en figure 2, après formage des bords et des trous de vapeur sous un jet de particules 100 transportées par un jet d'air issu d'une buse 101. La buse est à faible distance, environ à 100 millimètres, de la semelle 2, qui est déplacée dans son plan longitudinalement suivant les flèches 102 et transversalement, de façon à ce que le jet intéresse toute la surface de travail de la semelle. Dans une autre version le jet de particules 100 est plat, pouvant être obtenu par plusieurs buses, sa largeur est supérieure ou égale à la largeur de la semelle et le déplacement n'a lieu que dans le sens longitudinal.In a preferred version, to obtain this type of result, the area of sole work is presented, as illustrated in figure 2, after forming edges and vapor holes under a jet of particles 100 transported by an air jet from a nozzle 101. The nozzle is at a short distance, about 100 millimeters, of sole 2, which is displaced in its plane longitudinally following the arrows 102 and transversely, so that the jet interests the entire working surface of the sole. In another version the jet of 100 particles is flat, obtainable by several nozzles, its width is greater than or equal to the width of the sole and movement takes place only in the longitudinal direction.

Afin de compenser les déformations dues à la compression superficielle du métal la surface inférieure de la semelle est rendue légèrement concave au formage, pour qu'après traitement elle s'applique correctement contre le corps chauffant 6.In order to compensate for the deformations due to the surface compression of the metal the bottom surface of the sole is made slightly concave to the forming, so that after treatment it is applied correctly against the body heating 6.

Dans une version préférentielle le mélange de particules comprend une majorité de billes de verre, avec des compléments de billes céramiques par exemple en zircone ou oxyde d'aluminium, et de particules broyées organiques par exemple de coquilles de noix, de noix d'amande, de noix de coco. Ce mélange permet d'obtenir une surface lisse et dure en une seule opération à température ambiante et sans préparation particulière de la semelle.In a preferred version the mixture of particles comprises a majority of glass beads, with additional ceramic beads by example in zirconia or aluminum oxide, and organic ground particles for example, nutshells, almonds, coconuts. This mixing provides a smooth, hard surface in a single operation ambient temperature and without special preparation of the sole.

De cette façon on obtient une surface en acier inoxydable de bonne présentation, d'une dureté lui permettant de mieux résister à la rayure, et glissant sur le linge comme les meilleurs revêtements connus.In this way a good stainless steel surface is obtained. presentation, of a hardness allowing it to better resist scratching, and sliding on the laundry like the best known coatings.

De manière inattendue, on constate que l'utilisation de particules de matière organique permet d'injecter dans les micro fissures résiduelles des composés huileux végétaux qui ajoutent à l'amélioration de la glisse de la semelle.Unexpectedly, we find that the use of particles of matter organic allows to inject into the residual micro cracks of the compounds oily vegetables which add to the improvement of the gliding of the sole.

Claims (7)

  1. A smoothing-iron soleplate (1) made up of a metal sheet (2), characterized in that its working surface (4) presents grains deformed by compression that is perpendicular to the surface, the number of metal dislocations per unit volume in the compressed thickness being at least 40% greater than in the metal at the core of the soleplate, disposed beyond the compressed thickness, at a depth greater than 40 µm.
  2. A smoothing-iron soleplate (1) according to claim 1, characterized in that the compressed thickness of the metal, measured from the surface, lies in the range 25 µm to 35 µm.
  3. A smoothing-iron soleplate (1) according to claim 2, characterized in that the soleplate (2) is made of stainless steel and presents, at its working surface (4), Vickers hardness that is at least 25% greater than the Vickers hardness measured at the core of the metal.
  4. A smoothing-iron soleplate (1) according to claim 3, characterized in that the roughness of the working surface measured in accordance with standard DIN4777 is less than 3 µm.
  5. A smoothing-iron soleplate (1) according to any preceding claim, characterized in that the stainless steel surface is compressed using a "shot peening" method.
  6. A smoothing-iron soleplate (1) according to claim 5, characterized in that the "shot peening" treatment of the surface is performed in a single operation.
  7. A smoothing-iron soleplate (1) according to claim 6, characterized in that the particles used for "shot peening" are a mixture of glass beads, ceramic beads, and natural organic granular materials.
EP00420262A 1999-12-29 2000-12-20 Iron sole with a surface blast-treated with microspheres Expired - Lifetime EP1114889B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9916688A FR2803310B1 (en) 1999-12-29 1999-12-29 MICROBILLED IRON SOLE
FR9916688 1999-12-29

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EP1114889A1 EP1114889A1 (en) 2001-07-11
EP1114889B1 true EP1114889B1 (en) 2004-10-06

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US (1) US6446371B2 (en)
EP (1) EP1114889B1 (en)
JP (1) JP2001204999A (en)
AT (1) ATE278832T1 (en)
DE (1) DE60014569T2 (en)
ES (1) ES2228433T3 (en)
FR (1) FR2803310B1 (en)
HK (1) HK1036490A1 (en)
PT (1) PT1114889E (en)

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Publication number Priority date Publication date Assignee Title
FR2837220B1 (en) 2002-03-13 2004-08-06 Rowenta Werke Gmbh IRON SOLE WITH HARDENED AND COATED SURFACE
EP2228485A1 (en) * 2009-03-12 2010-09-15 Koninklijke Philips Electronics N.V. Domestic appliance comprising an antimicrobial agent
US9551106B2 (en) 2015-05-20 2017-01-24 Samuel Burke Steam iron and burn prevention apparatus
US20210092856A1 (en) * 2019-09-23 2021-03-25 Apple Inc. Surface nanograin for improved durability of metal bands

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Publication number Priority date Publication date Assignee Title
US2750691A (en) * 1952-07-17 1956-06-19 Westinghouse Electric Corp Steam iron
US3333955A (en) * 1964-09-30 1967-08-01 Int Nickel Co Aluminum alloy and sole plate for electric iron and the like made therefrom
IT8407016V0 (en) * 1984-07-17 1984-07-17 Dmd Srl STEAM IRON WITH PLATE EQUIPPED WITH THIN STAINLESS STEEL SLAB PERFORATED AND REMOVABLE.
US4665637A (en) * 1985-07-26 1987-05-19 Braun Aktiengesellschaft Sole plate coating for a fabric pressing device
EP0227111B1 (en) * 1985-12-24 1991-01-16 Braun Aktiengesellschaft Iron sole plate
DE19503883A1 (en) * 1995-02-07 1996-08-08 Braun Ag Process for working the ironing surface of an iron soleplate

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US20010005951A1 (en) 2001-07-05
ES2228433T3 (en) 2005-04-16
US6446371B2 (en) 2002-09-10
ATE278832T1 (en) 2004-10-15
JP2001204999A (en) 2001-07-31
DE60014569T2 (en) 2005-10-13
EP1114889A1 (en) 2001-07-11
FR2803310B1 (en) 2002-05-24
FR2803310A1 (en) 2001-07-06
HK1036490A1 (en) 2002-01-04
DE60014569D1 (en) 2004-11-11
PT1114889E (en) 2005-02-28

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