EP1772551B1 - Iron having a sole plate with a special arrangement of steam exits - Google Patents

Iron having a sole plate with a special arrangement of steam exits Download PDF

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Publication number
EP1772551B1
EP1772551B1 EP06356116A EP06356116A EP1772551B1 EP 1772551 B1 EP1772551 B1 EP 1772551B1 EP 06356116 A EP06356116 A EP 06356116A EP 06356116 A EP06356116 A EP 06356116A EP 1772551 B1 EP1772551 B1 EP 1772551B1
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EP
European Patent Office
Prior art keywords
pattern
steam outlet
outlet holes
holes
sole
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EP06356116A
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German (de)
French (fr)
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EP1772551A1 (en
Inventor
Andrea Lukas
Matthias Hahn
Michel Forest
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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
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/20—Arrangements for discharging the steam to the article being ironed
    • 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
    • D06F75/24—Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat
    • 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 irons comprising a soleplate, attached to a heating body, provided with steam outlet holes and relates more particularly to an iron having a sole having a particular arrangement of the steam outlet holes.
  • the body of such an iron has the disadvantage of having many studs that are complex and expensive to produce.
  • the steam distribution channels that are arranged between these pads have a small section and can be quickly blocked by scale deposits.
  • the object of the present invention is to overcome these disadvantages by providing an iron with a sole provided with a particular arrangement of steam outlet holes ensuring good diffusion of steam to the laundry and a good heat transfer from the body to the soleplate and which can be associated with a heating body that is simple and economical to achieve.
  • an iron comprising a sole attached to a body, said sole having an array of at least 200 steam outlet holes, the network of steam outlet holes being supplied with steam by a distribution chamber extending on the underside of the body, facing the network of steam outlet holes, characterized in that the steam outlet holes have a passage section of less than 4 mm 2 and form a mesh in which the holes are arranged side by side with a pitch less than 10 mm and in that said body is a heating body, the soleplate comprising at least one strip of a width greater than 10 mm, without steam exit holes, interrupting said grating by extending therethrough, the strip being in thermal contact with bearing surfaces of the heating body projecting into the distribution chamber.
  • Such a characteristic has the advantage of allowing homogeneous diffusion of the vapor, by the network having a high density of small diameter steam outlet holes, and successive dewatering of the laundry by the broad band of material passing through the network.
  • the presence of the solid material web traversing the network stiffens the sole and simplifies the attachment of the sole on the heating body.
  • the soleplate may advantageously comprise several networks of holes and the meshes of the network may have various geometric shapes, and be for example rectangular or triangular.
  • the surface of the strip of material represents between 10 and 30% of the total surface of the sole and the surface occupied by the network of steam outlet holes represents at least 50% of the surface area. of the sole.
  • the network of steam outlet holes is supplied with steam by a distribution chamber extending, on the lower face of the heating body, facing the network of steam outlet holes, the strip being in thermal contact with bearing surfaces projecting into the distribution chamber.
  • the sole comprises a central network and a peripheral network of steam outlet holes with a cross-sectional area of less than 4 mm 2 , the holes being arranged side by side with a pitch of less than 10 mm, an intermediate zone with no steam outlet holes extending between the central network and the peripheral network, the intermediate zone forming a band, surrounding the central network having a width greater than 10 mm.
  • the central network and the peripheral network of steam outlet holes are substantially concentric.
  • the distribution chamber comprises a peripheral chamber extending opposite the peripheral network and a central chamber extending opposite the central network, the central chamber being connected to the peripheral chamber by means of channels extending opposite the intermediate zone.
  • the sole is a colaminate sole having an outer skin of stainless steel and an inner skin of aluminum in contact with the heating body.
  • Such a feature has the advantage of allowing excellent heat transfer of the heating body to the sole and good scratch resistance of the ironing surface.
  • the peripheral network comprises holes of larger diameter in the rear part of the sole.
  • Such a characteristic makes it possible to facilitate the evacuation of any scale particles that may become detached from the vaporization chamber of the iron, for example following a self-cleaning procedure.
  • the steam outlet holes are obtained by punching.
  • the distribution chamber is supplied with steam through holes opening, on the upper face of the heating block, through a chimney having a beveled end.
  • the steam iron comprises a set of sole visible to figures 1 and 2 .
  • This assembly conventionally located below the water reservoir of the iron, has a sole 1 provided with a pronounced front tip and a heating body 2 attached to the sole 1.
  • the heating body 2 is advantageously made of aluminum and conventionally comprises a resistive heating element 21 curved horseshoe and a boss 22 provided to receive a temperature control thermostat.
  • the heating body 2 comprises, in its upper part, a vaporization chamber 23 of large dimensions closed by a closure plate, not shown in the figures.
  • the water of the iron reservoir is fed, in a manner known per se, by a device drip into the vaporization chamber 23 and the steam thus generated is distributed by a U-shaped channel 24 extending on the upper face. of the heating body 2 and whose two branches extend substantially at the edge of the heating body.
  • the channel 24 has, at the rear half of the heating body 2 and near the front tip of the sole 1, holes 25 passing through the heating body and opening into a vapor distribution chamber 26 extending on the face bottom of the heating body 2 and feeding holes 10 steam outlet of the sole 1.
  • these steam outlet holes 10 are distributed on the sole 1 along a central network 11 and a peripheral network 12, delimited by dotted lines on the figure 2 .
  • the holes 10 of each array 11, 12 form a mesh in which the holes 10 are arranged side by side with a pitch less than 10 mm and preferably of the order of 5 mm.
  • the holes 10 have a passage section of less than 4 mm 2 and are, for example, obtained by punching the sole 1 so as to have a rounded edge on the underside of ironing.
  • the steam outlet holes are circular and have a diameter of less than 2 mm and advantageously of the order of 1.5 mm.
  • the peripheral network 12 comprises more than two hundred steam outlet holes disposed on each side of the sole 1, in four rows extending parallel to the edge of the sole and joining at the front tip of the sole 1 to form a series of holes 10 arranged in a triangle at the tapered front tip of the sole 1.
  • the peripheral network 12 also comprises, in the rear portion of the sole, a series of steam outlet holes 10 disposed in several rows in an arc, the holes 10 near the rear edge of the sole and located near the longitudinal axis of the sole having a larger inner diameter, of the order of 2 to 3 mm, facilitating the evacuation of possible scale particles.
  • the central network 11 comprises more than fifty steam outlet holes 10 disposed in a substantially triangular mesh concentric with the peripheral network 12.
  • the soleplate 1 comprises an outer material strip 13 with a width of the order of 15 mm, without steam exit holes, surrounding the peripheral network and has a strip of intermediate material 14 without holes. steam, of a width of the order of 15 to 20 mm, extending between the central network 11 and the peripheral network 12.
  • the surface of the intermediate material strip 14 represents between 10 and 30% of the total surface of the sole and the area occupied by the peripheral and central networks represents more than 50% of the surface of the sole 1.
  • the strips of outer material 13 and intermediate 14 come into contact with the heating body 2 and provide heat transfer from the heating body 2 to the sole 1, a seal being disposed between the heating body 2 and the outer strip 13, in a groove 27, to ensure the sealing of the steam distribution chamber 26.
  • the steam distribution chamber 26 comprises a peripheral chamber 26A comprising arms, with a depth of the order 2 mm and a width greater than 15 mm, extending opposite the peripheral network 12.
  • the heating body 2 has bearing surfaces projecting in the middle of the steam distribution chamber 26 and on which the intermediate strip 14 of the sole is glued.
  • These bearing surfaces consist essentially of a V-shaped surface 28A and a U-shaped surface 28B arranged head-to-tail, the two surfaces 28A, 28B having arms of a width greater than 10 mm delimiting a chamber central 26B, of substantially triangular shape and a depth of the order of 1.2 mm, facing the central network 11 of holes.
  • the central chamber 26B is supplied with steam by two channels 26C, with a width of the order of 10 mm, separating the bearing surfaces 28A, 28B and extending transversely to the longitudinal direction of the iron.
  • the heating body 2 also comprises studs 28C coming into contact with the sole 1 entered the holes 10 of the peripheral network 12 located on the rear portion of the sole, these pads 28C stiffening the sole and participating in the transfer of heat to the sole.
  • the sole 1 is colaminate and has a lower skin, a thickness of about 0.2 mm, stainless steel for ironing surface and a top skin, a thickness of the order of 1.3 mm, aluminum in contact with the heating body.
  • the iron thus obtained comprises a sole provided with a multitude of perforations of small diameter having the advantage of allowing a more homogeneous impregnation of the laundry by the steam, which facilitates the ironing operation.
  • the presence of an intermediate zone without steam outlet holes makes it possible to dry the laundry by transmitting the heat of the heating body, facilitates the attachment of the soleplate to the heating body, in particular by gluing, and ensures good stiffness at the sole.
  • the result is an insole with optimized ironing efficiency.
  • the presence of holes of larger diameter on the rear part of the iron makes it possible to facilitate the evacuation of the particles of scale, in particular after a self-cleaning operation of the iron by injection of a large quantity of water into the chamber of vaporization at high temperature, the channels of the steam distribution chamber having the advantage of being wide and therefore difficult to obstruct by scale.
  • the iron is associated with a separate steam generator and comprises the sole assembly visible to Figures 3 to 6 .
  • This sole assembly comprises a sole 201 and a heating element 202 comprising a heating element 221 and having, in its upper part, a heating chamber 223 in which the steam under pressure from the boiler of the separate steam generator is injected to vaporize. any water droplets present in the steam.
  • the steam of the heating chamber is distributed by two channels 224 extending on each side of the heating body 202, substantially following the curvature of the edge of the sole 201.
  • These channels 224 comprise holes 225 passing through the heating body 202 and opening in a distribution chamber 226 supplying steam holes 210 of the sole 201.
  • These steam outlet holes 210 are distributed along a central network 211 and a peripheral network 212 separated by a strip of material. intermediate 214, without steam outlet holes 210, bonded to bearing surfaces 228A, 228B protruding in the middle of the distribution chamber 226, the central networks 211 and peripheral 212 and the distribution chamber 226 having characteristics similar to those described for the embodiment of the figures 1 and 2 .
  • the holes 225 passing through the heating body have the particularity of being surmounted by a chimney 229 which projects from middle of the channel and whose upper end is cut obliquely so that the upper face 229A of the chimney is inclined relative to the axis of the hole 225 through.
  • the orientation of the upper face 229A differs from one hole 225 to the other and allows the creation of turbulence improving the distribution of steam between the various holes 225, when pressurized steam is sent into the heating chamber 223, so that a more homogeneous distribution of the steam is obtained on all the holes 210 of the sole.
  • the shape and the number of rows of the central network and the peripheral network may be different.
  • Steam outlet holes may also be oblong rather than circular in shape.
  • the material band with no steam outlet hole can cross the hole network transversely or extend only locally through the network.

Abstract

The steam iron, made with a sole (1) of outer stainless steel and inner aluminium layers on a heating body (2), has the sole pierced with a network of at least 200 steam outlets (10), each measuring less than 4 sq mm in section and less than 10 mm apart. The holes are in two zones (11, 12) in the middle and outside of the sole, with a gap (14) more than 10 mm wide between them and covering between 10 and 30 per cent of the sole's surface. The holes are fed with steam from a distribution chamber (26) on the underside of the body.

Description

La présente invention concerne les fers à repasser comprenant une semelle, fixée sur un corps chauffant, munie de trous de sortie de vapeur et se rapporte plus particulièrement à un fer à repasser comportant une semelle présentant un agencement particulier des trous de sortie de vapeur.The present invention relates to irons comprising a soleplate, attached to a heating body, provided with steam outlet holes and relates more particularly to an iron having a sole having a particular arrangement of the steam outlet holes.

Il est connu, du brevet US 4 642 922 , un fer à repasser comportant une semelle amovible munie de multiples trous de sortie de vapeur de faible diamètre uniformément répartis sur la semelle. Cette semelle est rapportée sur un corps présentant de multiples plots venant au contact de la semelle, entre les trous de sortie de vapeur, les plots rigidifiant la semelle, l'espace entre les plots définissant des canaux de distribution de vapeur. Une telle semelle avec un très grand nombre de trous de sortie de vapeur présente l'avantage de permettre une diffusion uniforme et homogène de la vapeur sur le linge, assurant ainsi une bonne imprégnation du linge pour un repassage optimisé.It is known, from U.S. Patent 4,642,922 , an iron with a removable sole provided with multiple small diameter steam outlet holes evenly distributed on the sole. This sole is attached to a body having multiple pads coming into contact with the sole, between the steam outlet holes, the pads stiffening the sole, the space between the pads defining steam distribution channels. Such a sole with a very large number of steam outlet holes has the advantage of allowing a uniform and homogeneous diffusion of steam on the laundry, thus ensuring a good impregnation of the laundry for an ironing optimized.

Cependant, le corps d'un tel fer à repasser présente l'inconvénient de posséder de nombreux plots qui sont complexes et coûteux à réaliser. De plus, les canaux de distribution de vapeur qui sont disposés entre ces plots présentent une section faible et peuvent être rapidement bouchés par des dépôts de tartre.However, the body of such an iron has the disadvantage of having many studs that are complex and expensive to produce. In addition, the steam distribution channels that are arranged between these pads have a small section and can be quickly blocked by scale deposits.

Ainsi, le but de la présente invention est de remédier à ces inconvénients en proposant un fer à repasser comportant une semelle munie d'un agencement particulier des trous de sortie de vapeur assurant une bonne diffusion de la vapeur vers le linge ainsi qu'un bon transfert thermique du corps vers la semelle et qui puisse être associé avec un corps chauffant qui soit simple et économique à réaliser.Thus, the object of the present invention is to overcome these disadvantages by providing an iron with a sole provided with a particular arrangement of steam outlet holes ensuring good diffusion of steam to the laundry and a good heat transfer from the body to the soleplate and which can be associated with a heating body that is simple and economical to achieve.

Le but de l'invention est atteint par un fer à repasser comprenant une semelle fixée sur un corps, ladite semelle comportant un réseau d'au moins 200 trous de sortie de vapeur, le réseau de trous de sortie de vapeur étant alimenté en vapeur par une chambre de distribution s'étendant, sur la face inférieure du corps, en regard du réseau de trous de sortie de vapeur, caractérisé en ce que les trous de sortie vapeur possèdent une section de passage inférieure à 4 mm2 et forment un maillage dans lequel les trous sont disposés côte à côte avec un pas inférieur à 10 mm et en ce que ledit corps est un corps chauffant, la semelle comportant au moins une bande d'une largeur supérieure à 10 mm, démunie de trous de sortie de vapeur, venant interrompre ledit réseau en s'étendant à travers ce dernier, la bande étant en contact thermique avec des surfaces d'appui du corps chauffant faisant saillie dans la chambre de distribution.The object of the invention is achieved by an iron comprising a sole attached to a body, said sole having an array of at least 200 steam outlet holes, the network of steam outlet holes being supplied with steam by a distribution chamber extending on the underside of the body, facing the network of steam outlet holes, characterized in that the steam outlet holes have a passage section of less than 4 mm 2 and form a mesh in which the holes are arranged side by side with a pitch less than 10 mm and in that said body is a heating body, the soleplate comprising at least one strip of a width greater than 10 mm, without steam exit holes, interrupting said grating by extending therethrough, the strip being in thermal contact with bearing surfaces of the heating body projecting into the distribution chamber.

Une telle caractéristique présente l'avantage de permettre une diffusion homogène de la vapeur, par le réseau comportant une forte densité de trous de sortie de vapeur de faible diamètre, et l'assèchement successif du linge par la large bande de matière traversant le réseau. De plus la présence de la bande de matière pleine traversant le réseau permet de rigidifier la semelle et simplifie la fixation de la semelle sur le corps chauffant.Such a characteristic has the advantage of allowing homogeneous diffusion of the vapor, by the network having a high density of small diameter steam outlet holes, and successive dewatering of the laundry by the broad band of material passing through the network. In addition the presence of the solid material web traversing the network stiffens the sole and simplifies the attachment of the sole on the heating body.

Bien entendu, la semelle pourra avantageusement comporter plusieurs réseaux de trous et les mailles du réseau pourront présenter des formes géométriques diverses, et être par exemple rectangulaires ou triangulaires.Of course, the soleplate may advantageously comprise several networks of holes and the meshes of the network may have various geometric shapes, and be for example rectangular or triangular.

Selon une autre caractéristique de l'invention, la surface de la bande de matière représente entre 10 et 30 % de la surface totale de la semelle et la surface occupée par le réseau de trous de sortie de vapeur représente au moins 50% de la surface de la semelle.According to another characteristic of the invention, the surface of the strip of material represents between 10 and 30% of the total surface of the sole and the surface occupied by the network of steam outlet holes represents at least 50% of the surface area. of the sole.

Selon une autre caractéristique de l'invention, le réseau de trous de sortie de vapeur est alimenté en vapeur par une chambre de distribution s'étendant, sur la face inférieure du corps chauffant, en regard du réseau de trous de sortie de vapeur, la bande étant en contact thermique avec des surfaces d'appui faisant saillie dans la chambre de distribution.According to another characteristic of the invention, the network of steam outlet holes is supplied with steam by a distribution chamber extending, on the lower face of the heating body, facing the network of steam outlet holes, the strip being in thermal contact with bearing surfaces projecting into the distribution chamber.

Selon une autre caractéristique de l'invention, la semelle comporte un réseau central et un réseau périphérique de trous de sortie de vapeur de section de passage inférieure à 4 mm2, les trous étant disposés côte à côte avec un pas inférieur à 10 mm, une zone intermédiaire démunie de trous de sortie de vapeur s'étendant entre le réseau central et le réseau périphérique, la zone intermédiaire formant une bande, entourant le réseau central présentant une largeur supérieure à 10 mm.According to another characteristic of the invention, the sole comprises a central network and a peripheral network of steam outlet holes with a cross-sectional area of less than 4 mm 2 , the holes being arranged side by side with a pitch of less than 10 mm, an intermediate zone with no steam outlet holes extending between the central network and the peripheral network, the intermediate zone forming a band, surrounding the central network having a width greater than 10 mm.

Selon une autre caractéristique de l'invention, le réseau central et le réseau périphérique de trous de sortie de vapeur sont sensiblement concentriques.According to another characteristic of the invention, the central network and the peripheral network of steam outlet holes are substantially concentric.

Selon encore une autre caractéristique de l'invention, la chambre de distribution comporte une chambre périphérique s'étendant en regard du réseau périphérique et une chambre centrale s'étendant en regard du réseau central, la chambre centrale étant reliée à la chambre périphérique par des canaux s'étendant en regard de la zone intermédiaire.According to yet another characteristic of the invention, the distribution chamber comprises a peripheral chamber extending opposite the peripheral network and a central chamber extending opposite the central network, the central chamber being connected to the peripheral chamber by means of channels extending opposite the intermediate zone.

Selon une autre caractéristique de l'invention, la semelle est une semelle colaminée comportant une peau extérieure en acier inoxydable et une peau intérieure en aluminium en contact avec le corps chauffant.According to another characteristic of the invention, the sole is a colaminate sole having an outer skin of stainless steel and an inner skin of aluminum in contact with the heating body.

Une telle caractéristique présente l'avantage de permettre un excellent transfert thermique du corps chauffant vers la semelle ainsi qu'une bonne résistance aux rayures de la surface de repassage.Such a feature has the advantage of allowing excellent heat transfer of the heating body to the sole and good scratch resistance of the ironing surface.

Selon une autre caractéristique de l'invention, le réseau périphérique comporte des trous de plus gros diamètre dans la partie arrière de la semelle.According to another characteristic of the invention, the peripheral network comprises holes of larger diameter in the rear part of the sole.

Une telle caractéristique permet de faciliter l'évacuation d'éventuelles particules de tartre pouvant se détacher de la chambre de vaporisation du fer, par exemple suite à une procédure d'autonettoyage.Such a characteristic makes it possible to facilitate the evacuation of any scale particles that may become detached from the vaporization chamber of the iron, for example following a self-cleaning procedure.

Selon encore une autre caractéristique de l'invention, les trous de sortie de vapeur sont obtenus par poinçonnage.According to yet another characteristic of the invention, the steam outlet holes are obtained by punching.

Selon encore une autre caractéristique de l'invention, la chambre de distribution est alimentée en vapeur par des trous débouchant, sur la face supérieure du bloc chauffant, au travers d'une cheminée présentant une extrémité biseautée.According to yet another characteristic of the invention, the distribution chamber is supplied with steam through holes opening, on the upper face of the heating block, through a chimney having a beveled end.

On comprendra mieux les buts, aspects et avantages de la présente invention, d'après la description donnée ci-après d'un mode particulier de réalisation de l'invention présenté à titre d'exemple non limitatif, en se référant aux dessins annexés dans lesquels :

  • la figure 1 est une vue en perspective éclatée d'un ensemble de semelle de fer selon l'invention, visible de dessus ;
  • la figure 2 est une vue en perspective éclatée, visible de dessous, de l'ensemble de semelle de la figure 1 ;
  • la figure 3 est une vue en perspective éclatée d'un ensemble de semelle selon une variante de réalisation du fer selon l'invention, visible de dessus ;
  • la figure 4 est une vue en perspective éclatée, visible de dessous, de l'ensemble de semelle de la figure 3 ;
  • la figure 5 est une vue de dessus du corps chauffant de la figure 3 ;
  • la figure 6 est une vue en coupe suivant la ligne VI-VI de la figure 5.
The aims, aspects and advantages of the present invention will be better understood from the description given below of a particular embodiment of the invention presented by way of non-limiting example, with reference to the accompanying drawings in which :
  • the figure 1 is an exploded perspective view of a set of iron soleplate according to the invention, visible from above;
  • the figure 2 is an exploded perspective view, visible from below, of the sole set of the figure 1 ;
  • the figure 3 is an exploded perspective view of a sole assembly according to an alternative embodiment of the iron according to the invention, visible from above;
  • the figure 4 is an exploded perspective view, visible from below, of the sole assembly of the figure 3 ;
  • the figure 5 is a top view of the heating body of the figure 3 ;
  • the figure 6 is a sectional view along the line VI-VI of the figure 5 .

Seuls les éléments nécessaires à la compréhension de l'invention ont été représentés. Pour faciliter la lecture des dessins les mêmes éléments portent les mêmes références d'une figure à l'autre.Only the elements necessary for the understanding of the invention have been represented. To facilitate the reading of the drawings the same elements bear the same references from one figure to another.

Dans un premier mode de réalisation de l'invention, le fer à repasser à vapeur comporte un ensemble de semelle visible aux figures 1 et 2. Cet ensemble, situé classiquement au dessous du réservoir d'eau du fer à repasser, comporte une semelle 1 munie d'une pointe avant prononcée et un corps chauffant 2 rapporté sur la semelle 1.In a first embodiment of the invention, the steam iron comprises a set of sole visible to figures 1 and 2 . This assembly, conventionally located below the water reservoir of the iron, has a sole 1 provided with a pronounced front tip and a heating body 2 attached to the sole 1.

Le corps chauffant 2 est avantageusement réalisé en aluminium et comprend classiquement un élément chauffant résistif 21 cintré en fer à cheval ainsi qu'un bossage 22 prévu pour recevoir un thermostat de régulation de la température.The heating body 2 is advantageously made of aluminum and conventionally comprises a resistive heating element 21 curved horseshoe and a boss 22 provided to receive a temperature control thermostat.

Le corps chauffant 2 comporte, dans sa partie supérieure, une chambre de vaporisation 23 de grandes dimensions fermée par une plaque de fermeture, non représentée sur les figures.The heating body 2 comprises, in its upper part, a vaporization chamber 23 of large dimensions closed by a closure plate, not shown in the figures.

L'eau du réservoir du fer est amenée, de manière connue en soi, par un dispositif goutte à goutte dans la chambre de vaporisation 23 et la vapeur ainsi générée est distribuée par un canal 24 en forme de U s'étendant sur la face supérieure du corps chauffant 2 et dont les deux branches s'étendent sensiblement en bordure du corps chauffant.The water of the iron reservoir is fed, in a manner known per se, by a device drip into the vaporization chamber 23 and the steam thus generated is distributed by a U-shaped channel 24 extending on the upper face. of the heating body 2 and whose two branches extend substantially at the edge of the heating body.

Le canal 24 présente, au niveau de la moitié arrière du corps chauffant 2 et à proximité de la pointe avant de la semelle 1, des trous 25 traversant le corps chauffant et débouchant dans une chambre 26 de distribution de vapeur s'étendant sur la face inférieure du corps chauffant 2 et alimentant des trous 10 de sortie de vapeur de la semelle 1.The channel 24 has, at the rear half of the heating body 2 and near the front tip of the sole 1, holes 25 passing through the heating body and opening into a vapor distribution chamber 26 extending on the face bottom of the heating body 2 and feeding holes 10 steam outlet of the sole 1.

Conformément à la figure 2, ces trous 10 de sortie de vapeur sont répartis sur la semelle 1 suivant un réseau central 11 et un réseau périphérique 12, délimités par des pointillés sur la figure 2.In accordance with the figure 2 these steam outlet holes 10 are distributed on the sole 1 along a central network 11 and a peripheral network 12, delimited by dotted lines on the figure 2 .

Plus particulièrement selon l'invention, les trous 10 de chaque réseau 11,12 forment un maillage dans lequel les trous 10 sont disposés côte à côte avec un pas inférieur à 10 mm et préférentiellement de l'ordre de 5 mm. Les trous 10 présentent une section de passage inférieure à 4 mm2 et sont, par exemple, obtenus par poinçonnage de la semelle 1 de manière à présenter un bord arrondi sur la face inférieure de repassage. De manière préférentielle, les trous 10 de sortie de vapeur sont circulaires et possèdent un diamètre inférieur à 2 mm et avantageusement de l'ordre de 1,5 mm.More particularly according to the invention, the holes 10 of each array 11, 12 form a mesh in which the holes 10 are arranged side by side with a pitch less than 10 mm and preferably of the order of 5 mm. The holes 10 have a passage section of less than 4 mm 2 and are, for example, obtained by punching the sole 1 so as to have a rounded edge on the underside of ironing. Preferably, the steam outlet holes are circular and have a diameter of less than 2 mm and advantageously of the order of 1.5 mm.

Dans le mode de réalisation des figures 1 et 2, le réseau périphérique 12 comporte plus de deux cents trous de sorties de vapeur disposés, de chaque côté de la semelle 1, sur quatre rangées s'étendant parallèlement au bord de la semelle et se rejoignant au niveau de la pointe avant de la semelle 1 pour former une série de trous 10 disposés en triangle au niveau de la pointe avant effilée de la semelle 1. Le réseau périphérique 12 comporte également, dans la partie arrière de la semelle, une série de trous 10 de sortie de vapeur disposés sur plusieurs rangées en arc de cercle, les trous 10 proches du bord arrière de la semelle et situés à proximité de l'axe longitudinal de la semelle présentant un diamètre intérieur plus important, de l'ordre de 2 à 3 mm, facilitant l'évacuation d'éventuelles particules de tartre.In the embodiment of figures 1 and 2 , the peripheral network 12 comprises more than two hundred steam outlet holes disposed on each side of the sole 1, in four rows extending parallel to the edge of the sole and joining at the front tip of the sole 1 to form a series of holes 10 arranged in a triangle at the tapered front tip of the sole 1. The peripheral network 12 also comprises, in the rear portion of the sole, a series of steam outlet holes 10 disposed in several rows in an arc, the holes 10 near the rear edge of the sole and located near the longitudinal axis of the sole having a larger inner diameter, of the order of 2 to 3 mm, facilitating the evacuation of possible scale particles.

Le réseau central 11 comporte plus de cinquante trous 10 de sortie de vapeur disposés suivant un maillage sensiblement triangulaire concentrique au réseau périphérique 12.The central network 11 comprises more than fifty steam outlet holes 10 disposed in a substantially triangular mesh concentric with the peripheral network 12.

De manière avantageuse, la semelle 1 comporte une bande de matière extérieure 13 d'une largeur de l'ordre de 15 mm, démunie de trous de sortie de vapeur, entourant le réseau périphérique et présente une bande de matière intermédiaire 14 démunie de trous de vapeur, d'une largeur de l'ordre de 15 à 20 mm, s'étendant entre le réseau central 11 et le réseau périphérique 12.Advantageously, the soleplate 1 comprises an outer material strip 13 with a width of the order of 15 mm, without steam exit holes, surrounding the peripheral network and has a strip of intermediate material 14 without holes. steam, of a width of the order of 15 to 20 mm, extending between the central network 11 and the peripheral network 12.

De manière préférentielle, la surface de la bande de matière intermédiaire 14 représente entre 10 et 30 % de la surface totale de la semelle et la surface occupée par les réseaux périphérique et central représente plus de 50% de la surface de la semelle 1.Preferably, the surface of the intermediate material strip 14 represents between 10 and 30% of the total surface of the sole and the area occupied by the peripheral and central networks represents more than 50% of the surface of the sole 1.

Les bandes de matière extérieure 13 et intermédiaire 14 viennent au contact du corps chauffant 2 et assurent le transfert de chaleur du corps chauffant 2 vers la semelle 1, un joint d'étanchéité étant disposé entre le corps chauffant 2 et la bande extérieure 13, dans une gorge 27, pour assurer l'étanchéité de la chambre 26 de distribution de vapeur.The strips of outer material 13 and intermediate 14 come into contact with the heating body 2 and provide heat transfer from the heating body 2 to the sole 1, a seal being disposed between the heating body 2 and the outer strip 13, in a groove 27, to ensure the sealing of the steam distribution chamber 26.

Comme on peut le voir sur la figure 2, la chambre 26 de distribution de vapeur comporte une chambre périphérique 26A comprenant des bras, d'une profondeur de l'ordre 2 mm et d'une largeur supérieure à 15 mm, s'étendant en regard du réseau périphérique 12.As can be seen on the figure 2 , the steam distribution chamber 26 comprises a peripheral chamber 26A comprising arms, with a depth of the order 2 mm and a width greater than 15 mm, extending opposite the peripheral network 12.

Afin de rigidifier la semelle 1 et d'avoir un bon transfert de chaleur entre le corps chauffant 2 et la semelle 1, le corps chauffant 2 comporte des surfaces d'appui faisant saillie au milieu de la chambre 26 de distribution de vapeur et sur lesquelles la bande intermédiaire 14 de la semelle est collée. Ces surfaces d'appui sont essentiellement constituées par une surface 28A en forme de V et par une surface 28B en forme de U disposées tête-bêche, les deux surfaces 28A, 28B présentant des bras d'une largeur supérieure à 10 mm délimitant une chambre centrale 26B, de forme sensiblement triangulaire et d'une profondeur de l'ordre de 1,2 mm, venant en regard du réseau central 11 de trous. La chambre centrale 26B est alimentée en vapeur par deux canaux 26C, d'une largeur de l'ordre de 10 mm, séparant les surfaces d'appui 28A, 28B et s'étendant transversalement à la direction longitudinale du fer.In order to stiffen the sole 1 and to have a good heat transfer between the heating body 2 and the sole 1, the heating body 2 has bearing surfaces projecting in the middle of the steam distribution chamber 26 and on which the intermediate strip 14 of the sole is glued. These bearing surfaces consist essentially of a V-shaped surface 28A and a U-shaped surface 28B arranged head-to-tail, the two surfaces 28A, 28B having arms of a width greater than 10 mm delimiting a chamber central 26B, of substantially triangular shape and a depth of the order of 1.2 mm, facing the central network 11 of holes. The central chamber 26B is supplied with steam by two channels 26C, with a width of the order of 10 mm, separating the bearing surfaces 28A, 28B and extending transversely to the longitudinal direction of the iron.

Le corps chauffant 2 comporte également des plots 28C venant au contact de la semelle 1 entré les trous 10 du réseau périphérique 12 situés sur la partie arrière de la semelle, ces plots 28C rigidifiant la semelle et participant au transfert de la chaleur vers la semelle.The heating body 2 also comprises studs 28C coming into contact with the sole 1 entered the holes 10 of the peripheral network 12 located on the rear portion of the sole, these pads 28C stiffening the sole and participating in the transfer of heat to the sole.

De manière préférentielle et afin d'améliorer le transfert thermique du corps chauffant 2 vers la semelle 1 tout en ayant une bonne résistance de la semelle aux rayures, la semelle 1 est colaminée et comporte une peau inférieure, d'une épaisseur de l'ordre de 0,2 mm, en acier inoxydable servant de surface de repassage et une peau supérieure, d'une épaisseur de l'ordre de 1,3 mm, en aluminium en contact avec le corps chauffant.Preferably and in order to improve the heat transfer of the heating body 2 to the sole 1 while having good strength of the sole striped, the sole 1 is colaminate and has a lower skin, a thickness of about 0.2 mm, stainless steel for ironing surface and a top skin, a thickness of the order of 1.3 mm, aluminum in contact with the heating body.

Le fer à repasser ainsi obtenu comporte une semelle munie d'une multitudes de perforations de faible diamètre présentant l'avantage de permettre une imprégnation plus homogène du linge par la vapeur, ce qui facilite l'opération de repassage. De plus, la présence d'une zone intermédiaire démunie de trous de sortie de vapeur permet d'assécher le linge en transmettant la chaleur du corps chauffant, facilite la fixation de la semelle sur le corps chauffant, notamment par collage, et assure une bonne rigidité à la semelle. Il en résulte une semelle à l'efficacité de repassage optimisée. Enfin, la présence de trous de plus gros diamètre sur la partie arrière du fer permet de faciliter l'évacuation des particules de tartres, notamment après une opération d'autonettoyage du fer par injection d'une grande quantité d'eau dans la chambre de vaporisation à haute température, les canaux de la chambre de distribution de vapeur présentant l'avantage d'être de grande largeur et donc d'être difficilement obstruables par le tartre.The iron thus obtained comprises a sole provided with a multitude of perforations of small diameter having the advantage of allowing a more homogeneous impregnation of the laundry by the steam, which facilitates the ironing operation. In addition, the presence of an intermediate zone without steam outlet holes makes it possible to dry the laundry by transmitting the heat of the heating body, facilitates the attachment of the soleplate to the heating body, in particular by gluing, and ensures good stiffness at the sole. The result is an insole with optimized ironing efficiency. Finally, the presence of holes of larger diameter on the rear part of the iron makes it possible to facilitate the evacuation of the particles of scale, in particular after a self-cleaning operation of the iron by injection of a large quantity of water into the chamber of vaporization at high temperature, the channels of the steam distribution chamber having the advantage of being wide and therefore difficult to obstruct by scale.

Dans une variante de réalisation de l'invention, le fer à repasser est associé à un générateur de vapeur séparé et comporte l'ensemble de semelle visible aux figures 3 à 6. Cet ensemble de semelle comporte une semelle 201 et un corps chauffant 202 comprenant un élément chauffant 221 et présentant, dans sa partie supérieure, une chambre de chauffe 223 dans laquelle la vapeur sous pression issue de la chaudière du générateur de vapeur séparé est injectée pour vaporiser les éventuelles gouttelettes d'eau présentes dans la vapeur.In an alternative embodiment of the invention, the iron is associated with a separate steam generator and comprises the sole assembly visible to Figures 3 to 6 . This sole assembly comprises a sole 201 and a heating element 202 comprising a heating element 221 and having, in its upper part, a heating chamber 223 in which the steam under pressure from the boiler of the separate steam generator is injected to vaporize. any water droplets present in the steam.

La vapeur de la chambre de chauffe est distribuée par deux canaux 224 s'étendant sur chaque côté du corps chauffant 202, en suivant sensiblement la courbure du bord de la semelle 201. Ces canaux 224 comportent des trous 225 traversant le corps chauffant 202 et débouchant dans une chambre de distribution 226 alimentant en vapeur des trous 210 de la semelle 201.The steam of the heating chamber is distributed by two channels 224 extending on each side of the heating body 202, substantially following the curvature of the edge of the sole 201. These channels 224 comprise holes 225 passing through the heating body 202 and opening in a distribution chamber 226 supplying steam holes 210 of the sole 201.

Ces trous 210 de sortie de vapeur sont répartis suivant un réseau central 211 et un réseau périphérique 212 séparés par une bande de matière intermédiaire 214, démunie de trous 210 de sortie de vapeur, collée sur des surfaces d'appui 228A, 228B faisant saillie au milieu de la chambre de distribution 226, les réseaux central 211 et périphérique 212 ainsi que la chambre de distribution 226 présentant des caractéristiques similaires à celles décrites pour le mode de réalisation des figures 1 et 2.These steam outlet holes 210 are distributed along a central network 211 and a peripheral network 212 separated by a strip of material. intermediate 214, without steam outlet holes 210, bonded to bearing surfaces 228A, 228B protruding in the middle of the distribution chamber 226, the central networks 211 and peripheral 212 and the distribution chamber 226 having characteristics similar to those described for the embodiment of the figures 1 and 2 .

Dans cette variante de réalisation, dans laquelle l'ensemble de semelle est adapté pour être utilisé avec un fer à générateur de vapeur séparé, les trous 225 traversant le corps chauffant présentent la particularité d'être surmontés d'une cheminée 229 qui fait saillie au milieu du canal et dont l'extrémité supérieure est coupée obliquement de sorte que la face supérieure 229A de la cheminée est inclinée par rapport à l'axe du trou 225 traversant.In this embodiment, in which the sole assembly is adapted for use with a separate steam generator iron, the holes 225 passing through the heating body have the particularity of being surmounted by a chimney 229 which projects from middle of the channel and whose upper end is cut obliquely so that the upper face 229A of the chimney is inclined relative to the axis of the hole 225 through.

Conformément aux figures 4 et 6, l'orientation de la face supérieure 229A diffère d'un trou 225 à l'autre et permet la création de turbulences améliorant la répartition de la vapeur entre les différents trous 225, lorsque de la vapeur sous pression est envoyée dans la chambre de chauffe 223, de sorte que l'on obtient une répartition plus homogène de la vapeur sur tous les trous 210 de la semelle.In accordance with figures 4 and 6 , the orientation of the upper face 229A differs from one hole 225 to the other and allows the creation of turbulence improving the distribution of steam between the various holes 225, when pressurized steam is sent into the heating chamber 223, so that a more homogeneous distribution of the steam is obtained on all the holes 210 of the sole.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiment described and illustrated which has been given by way of example. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Ainsi, dans une variante de réalisation de l'invention, la forme et le nombre de rangées du réseau central et du réseau périphérique pourra être différente. Les trous de sortie de vapeur pourront également présenter une forme oblongue plutôt que circulaire.Thus, in an alternative embodiment of the invention, the shape and the number of rows of the central network and the peripheral network may be different. Steam outlet holes may also be oblong rather than circular in shape.

Ainsi, dans des variantes de réalisation de l'invention, la bande de matière démunie de trou de sortie de vapeur pourra traverser le réseau de trous transversalement ou s'étendre seulement localement au travers du réseau.Thus, in alternative embodiments of the invention, the material band with no steam outlet hole can cross the hole network transversely or extend only locally through the network.

Claims (9)

  1. A pressing iron comprising a soleplate (1; 201) fixed to a body (2; 202), said soleplate (1; 201) having a pattern (11, 12; 211, 212) of at least 200 steam outlet holes (10; 210), the pattern (11,12 ; 211, 212) of steam outlet holes being supplied with steam by a distribution chamber (26; 226) extending on the lower face of the body (2; 202), opposite the pattern of steam outlet holes (10, 210), characterised in that the steam outlet holes (10; 210) have a cross-sectional area of less than 4 mm2 and form a mesh wherein the holes (10, 210) are disposed side by side with a spacing less than 10 mm and in that said body (2; 202) is a heating body, the soleplate (1; 201) comprising at least one band (14; 214) having a width greater than 10 mm, free of steam outlet holes, which interrupts said pattern (11, 12; 211, 212) by extending over said pattern, the band (14 ; 214) being in thermal contact with bearing surfaces (28A, 28B ; 228A, 228B) provided on the heating body (2; 202) and projecting into the distribution chamber (26; 226).
  2. A pressing iron according to claim 1, characterised in that the surface area of the band (14, 214) is between 10 and 30% of the entire surface area of the soleplate and in that the surface area occupied by the pattern (11, 12; 211, 212) of steam outlet holes is at least 50% of the surface area of the soleplate (1; 201).
  3. A pressing iron according to any one of claims 1 to 2, characterised in that said soleplate is composed of:
    - a central pattern (11; 211) and a peripheral pattern (12; 212) of steam outlet holes (10; 210) having a cross-sectional area of less than 4 mm2, said holes (10, 210) being disposed side by side with a spacing of less than 10 mm,
    - an intermediate zone free of steam outlet holes extending between the central pattern (11; 211) and the peripheral pattern (12; 212), said intermediate zone forming a band (14; 214), surrounding the central pattern (11; 211) with a width greater than 10 mm.
  4. A pressing iron according to claim 3, characterised in that the central pattern (11; 211) and the peripheral pattern (12; 212) of steam outlet holes are substantially concentric to one another.
  5. A pressing iron according to claim 4, characterised in that the distribution chamber (26) has a peripheral chamber (26A) extending opposite the peripheral pattern (12) and a central chamber (26B) extending opposite the central pattern (11), the central pattern (26B) being connected to the peripheral chamber (26A) by channels (26C) extending opposite the intermediate zone (14).
  6. A pressing iron according to any one of claims 1 to 5, characterised in that the soleplate (1, 201) is a colaminated soleplate having an exterior skin, or sheet, of stainless steel and an interior skin, or sheet, of aluminium in contact with the heating body (2, 202).
  7. A pressing iron according to any one of claims 1 to 6, characterised in that the peripheral pattern (12; 212) has holes (10, 210) of larger diameter at the rear part of the soleplate (1; 201).
  8. A pressing iron according to any one of claims 1 to 7, characterised in that said steam outlet holes (10; 210) are produced by punching, or stamping.
  9. A pressing iron according to any one of claims 1 to 8, characterised in that the distribution chamber (226) is supplied with steam through holes (225) opening, on the upper face of the heating body (202), through at least one chimney (229) having a bevelled, or chamfered, end.
EP06356116A 2005-10-06 2006-09-27 Iron having a sole plate with a special arrangement of steam exits Active EP1772551B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0510203A FR2891846B1 (en) 2005-10-06 2005-10-06 IRON COMPRISING AN INSOLE COMPRISING A PARTICULAR STEAM OUTPUT HOLES NETWORK

Publications (2)

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EP1772551A1 EP1772551A1 (en) 2007-04-11
EP1772551B1 true EP1772551B1 (en) 2011-10-12

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US (1) US7305780B2 (en)
EP (1) EP1772551B1 (en)
CN (1) CN1944780B (en)
AT (1) ATE528437T1 (en)
CA (1) CA2562558C (en)
DE (1) DE202006021047U1 (en)
ES (1) ES2373053T3 (en)
FR (1) FR2891846B1 (en)
HK (1) HK1105440A1 (en)
RU (1) RU2388862C2 (en)

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US20070079534A1 (en) 2007-04-12
HK1105440A1 (en) 2008-02-15
DE202006021047U1 (en) 2012-01-27
CA2562558A1 (en) 2007-04-06
CN1944780A (en) 2007-04-11
ES2373053T3 (en) 2012-01-31
EP1772551A1 (en) 2007-04-11
CA2562558C (en) 2011-03-22
RU2388862C2 (en) 2010-05-10
US7305780B2 (en) 2007-12-11
FR2891846B1 (en) 2007-12-14
ATE528437T1 (en) 2011-10-15
CN1944780B (en) 2010-09-01
FR2891846A1 (en) 2007-04-13
RU2006135288A (en) 2008-04-10

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