EP2325382B1 - Iron comprising a soleplate with a recess provided with steam-outlet holes - Google Patents

Iron comprising a soleplate with a recess provided with steam-outlet holes Download PDF

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Publication number
EP2325382B1
EP2325382B1 EP10306244A EP10306244A EP2325382B1 EP 2325382 B1 EP2325382 B1 EP 2325382B1 EP 10306244 A EP10306244 A EP 10306244A EP 10306244 A EP10306244 A EP 10306244A EP 2325382 B1 EP2325382 B1 EP 2325382B1
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EP
European Patent Office
Prior art keywords
steam
recess
soleplate
iron according
sole
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Application number
EP10306244A
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German (de)
French (fr)
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EP2325382A1 (en
Inventor
Franck Mandica
Dominique Gelus
Stéphanie PESSAYRE
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SEB SA
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SEB SA
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Priority to PL10306244T priority Critical patent/PL2325382T3/en
Publication of EP2325382A1 publication Critical patent/EP2325382A1/en
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Publication of EP2325382B1 publication Critical patent/EP2325382B1/en
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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
    • D06F75/38—Sole plates

Definitions

  • the present invention relates to an iron and more particularly to an iron having a sole of particular shape.
  • an iron comprising a sole having a central recess bordered on its entire periphery with a sliding surface coming into contact with the laundry, the recess and the sliding surface being provided with numerous steam outlet holes .
  • a sole has the advantage of allowing the creation of a steam cushion, at the cavity formed by the recess, allowing a better flow of steam to the laundry, and to have a reduced gliding surface allowing reduce friction.
  • the object of the present invention is to provide a steam iron having an ironing sole providing significantly improved ironing performance.
  • Another object of the invention is to provide an iron providing better ironing performance for less energy expenditure.
  • the subject of the invention is an iron comprising a sole having a lower face having a sliding surface coming into contact with the laundry and having at least one recess fed with steam, the recess being bordered on any its periphery by the sliding surface so that the recess forms a steam diffusion cavity which is surrounded by the sliding surface when the soleplate is applied against the ironing cloth, characterized in that the depth of the recess is greater than or equal to 1 mm.
  • Such depth of the recess reduces the energy transmitted by radiation from the bottom of the recess to the surface of the laundry so that the laundry is more heavily moistened by the vapor cushion forming in the recess.
  • the depth of the recess is between 1 and 5 mm.
  • the depth of the recess will be chosen according to the nature of the material used to make the surface of the sole, the depth of the recess being all the more important that the emissivity of the material used is important. As an example for a sole using a low-emissivity material, such as stainless steel, the depth of the recess will be rather close to 1 mm and preferably of the order of 1.5 mm. Conversely, for a sole surface made of a material with high emissivity, such as an enamel sole, the depth of the recess will be greater, rather close to 5 mm and preferably of the order of 4 mm.
  • the sliding surface is devoid of steam outlet holes.
  • the bottom of the recess is constituted by a flat surface provided with steam outlet holes.
  • the invention also relates to an ironing apparatus comprising a pressurized steam generator connected by a steam duct to an iron as previously described.
  • the figures 1 and 2 represent a steam iron having a sole 1 ironing, advantageously made of stainless steel.
  • the sole 1 is surmounted by a plastic housing 2 containing, in a manner known per se, a water tank.
  • the housing 2 comprises a gripping handle 20 connected on the one hand to the front part of the iron and on the other hand to two link arms 21, 22 extending symmetrically at the rear of the iron, these two arms 21, 22 forming a heel on which the iron can stand vertically during inactive ironing phases.
  • the housing 2 contains a heating body 3, consisting of an aluminum foundry disposed in thermal contact with the upper face of the sole 1, the heating body 3 having an electrical resistance 30 and a vaporization chamber 31 for the production of steam.
  • the casing 2 also contains, in a manner known per se, means for supplying the vaporization chamber with water coming from the reservoir, these means advantageously being constituted by a dropper or by a pump, not shown on the FIGS.
  • the lower face of the sole 1 of the iron has a recess 10 whose outer contour substantially follows the contour of the sole 1, this recess 10 having a bottom 10A plane disposed with respect to a sliding surface 11 s' extending along the periphery of the sole 1, intended to come into contact with the laundry during the ironing phases.
  • the bottom 10A of the recess is provided with steam outlet holes 12 connected to the vaporization chamber 31 by a distribution chamber 32 formed on the lower face of the heating body 3.
  • the recess 10 thus constitutes a cavity for the diffusion steam which is surrounded by the sliding surface 11, the steam being trapped in this cavity when the sole 1 is applied against the clothes to be ironed.
  • these steam outlet holes 12 are advantageously divided into two groups, a first group comprising more than thirty steam outlet holes 12 distributed in the central zone of the sole 1 and a second group comprising a reduced number of holes. 12 vapor outlet disposed near the front tip of the sole 1 so as to prefer a better impregnation of the steam in these two areas of the sole 1.
  • the sliding surface 11 of the soleplate represents less than 50% of the total surface of the lower face of the soleplate 1 and preferably between 30 and 45% of the total surface of the lower face of the soleplate 1.
  • the sliding surface 11 of the sole illustrated in FIG. figure 3 represents only 36% of the total area of the lower face of the sole 1, the bottom surface 10A of the recess 10 representing 64% of the total surface of the lower face of the sole 1.
  • the depth of the recess 10 is between 1 and 5 mm and advantageously of the order of 1.5 mm. Indeed, the Applicant has realized that when the recess 10 has a depth of less than 1 mm, the steam cushion does not ensure sufficient humidification of the laundry to enable efficient ironing. Conversely, when the depth of the recess 10 is greater than 5 mm, the heat radiated by the bottom 10A of the recess 10 plan is then insufficient to contribute to the drying of the laundry so that the laundry after ironing can stay wet.
  • the depth of the recess will be a function of the emissivity of the material used to make the surface of the sole, the depth of the recess being all the more important as the emissivity of the material is high.
  • the depth of the recess will preferably be of the order of 1.5 mm, the low emissivity of the stainless steel material to obtain a high humidification of the laundry by the steam cushion due to the low radiation emitted by the bottom of the recess.
  • the depth of the recess will preferably be of the order of 4 mm to limit the energy released by radiation from the bottom of the recess.
  • the gliding surface 11 is devoid of steam outlet holes. Such a characteristic makes it possible to prevent the diffusion of steam under the gliding surface 11 and guarantees an optimum drying of the laundry after its heavy wetting by the steam cushion formed in the recess 10.
  • the sliding surface 11 preferably has the shape of a flat strip with a width less than 3 cm extending along the periphery of the sole 1.
  • the sliding surface 11 of the soleplate illustrated on FIG. the Figures 1 to 4 is constituted by a flat strip having a width of the order of 1.5 cm, this width being reduced at the level of the front tip of the sole 1.
  • Such a sole makes it possible to obtain a very high ironing efficiency, the low gliding surface in contact with the laundry making it possible to improve the glide of the sole and the vapor cushion formed at the level of the recess ensuring a very good impregnation of the laundry with steam over the entire surface of the recess before the sliding surface, lacking steam outlet holes, ensures the drying of the laundry.
  • the Figures 5 and 6 represent an embodiment variant of the iron soleplate illustrated in FIGS. Figures 3 and 4 , this sole being intended to equip the iron of the figure 1 .
  • the recess 10 locally comprises bosses 13 in relief projecting in the middle of the recess 10, the height of the bosses being such that the top of the boss 13 reaches height or slightly above the gliding surface 11 defining the periphery of the sole 1.
  • the upper end of the bosses 13 has a sliding surface 13A coming into contact with the laundry during ironing operations, the bosses 13 preferably having a plurality of branches arranged in a star, each branch advantageously having a width of less than 1 cm so as to constitute squeegees putting the linen under tension when moving the iron.
  • the figure 7 represents an alternative embodiment of the iron of the figure 1 in which the sole 1 of stainless steel is replaced by an insole 101 of aluminum covered with a layer of enamel.
  • the underside of the soleplate 101 has a recess 110 having a plane bottom 110A arranged recessed with respect to a sliding surface 111 extending along the periphery of the sole 101, the sliding surface 111 representing the order of 45% of the total surface of the sole.
  • the bottom 110A of the recess 110 is set back by about 4 mm with respect to the sliding surface 111.
  • This relatively large depth of the recess 110 makes it possible to limit the heat received by radiation by the linen because of the high emissivity of the enamel.
  • the bottom 110A is provided with steam outlet holes 112 which are connected, in a manner known per se, to a vaporization chamber integrated in the body of the iron or to a separate steam generator.
  • the recess 110 has an outer contour conforming to the contour of the sole 101 in the central zone of the sole 101 so that, in this central zone, the recess 110 is laterally bordered by a sliding surface 111 having a width of 1 mm. order of 1 to 3 cm.
  • the recess 110 is bordered on the rear of the sole 101 by a gliding surface 111 of greater width, of the order of 4 cm, to obtain a large sliding surface on the rear of the sole 101. to dry the laundry.
  • the rear part of the sole 101 may also comprise a recess 120, distinct from the recess 110, of a depth of the order of 4 mm, and provided with steam outlet holes 112, the gliding surface 111 arranged between the recess 110 and the recess 120 helping to dry and scrape the laundry.
  • the recess 110 has a constriction in the front portion of the sole 101, this constriction being formed by two protuberances 111A of the sliding surface 111 extending towards the inside of the recess 110.
  • the two protuberances 111A form a delimitation between a first group comprising about fifty steam outlet holes 112 arranged in the bottom 110A, at the level of the central zone of the sole, and a second group comprising about ten exit holes. of steam 112A disposed in front of the two protuberances 111A, near the front tip of the sole 101.
  • the steam outlet holes 112A are advantageously distributed both in the bottom of the recess 110A and at the sliding surface 111 of the front tip of the sole and are preferably fed by a specific steam flow, independent of the steam flow supplying the other steam outlet holes 112 of the sole 101.
  • This characteristic allows to obtain a concentrated vapor flow at the front tip of the sole 101 to strongly moisten an area of the laundry when carrying out the work precision.
  • the protuberances 111A make it possible, for their part, to increase the sliding surface coming into contact with the laundry behind the vapor emission zone at the front tip of the soleplate 101, which makes it possible to dry more efficiently the moistened laundry by the steam outlet holes 112A.
  • the strip constituting the sliding surface may have, in cross section, a convex surface rather than a flat surface so that the surface in contact is reduced and the pressure exerted by the sliding surface on the laundry is further increased.
  • the bottom surface of the recess may be non-flat or inclined relative to the sliding surface, so that the depth of the recess varies according to the zones of the soleplate. .
  • Such a characteristic thus makes it possible to obtain a different wetting rate of the laundry according to the zone of the recess, the humidification of the laundry being greater where the recess is the deepest.
  • the depth of the recess may be greater towards the front tip of the sole and gradually decrease towards the rear of the sole.

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

Description

La présente invention se rapporte à un fer à repasser et plus particulièrement à un fer à repasser comportant une semelle de forme particulière.The present invention relates to an iron and more particularly to an iron having a sole of particular shape.

Il est connu, de JP-7008696 ou bien de la demande de brevet FR 2 752 853 déposée par la demanderesse, un fer à repasser comprenant une semelle comportant une évidement central bordé sur toute sa périphérie d'une surface de glisse venant au contact du linge, l'évidement et la surface de glisse étant munis de nombreux trous de sortie de vapeur. Une telle semelle présente l'avantage de permettre la création d'un coussin de vapeur, au niveau de la cavité formée par l'évidement, permettant un meilleur acheminement de la vapeur vers le linge, et de posséder une surface de glisse réduite permettant de réduire le frottement.It is known, from JP-7008696 or from the patent application FR 2 752 853 filed by the applicant, an iron comprising a sole having a central recess bordered on its entire periphery with a sliding surface coming into contact with the laundry, the recess and the sliding surface being provided with numerous steam outlet holes . Such a sole has the advantage of allowing the creation of a steam cushion, at the cavity formed by the recess, allowing a better flow of steam to the laundry, and to have a reduced gliding surface allowing reduce friction.

Cependant une telle semelle présente l'inconvénient d'être relativement coûteuse à réaliser pour des performances de repassage peu supérieures aux semelles planes traditionnelles, moins coûteuses à réaliser.However, such a sole has the disadvantage of being relatively expensive to achieve for ironing performance little superior to conventional flat soles, less expensive to achieve.

En particulier, on constate que, malgré la présence de l'évidement, le linge n'est pas suffisamment humidifié dans la zone de l'évidement.In particular, it is found that, despite the presence of the recess, the laundry is not sufficiently humidified in the area of the recess.

Aussi, le but de la présente invention est de proposer un fer à repasser à vapeur comportant une semelle de repassage procurant des performances de repassage nettement améliorées. Un autre but de l'invention est de proposer un fer à repasser procurant des meilleures performances de repassage pour une dépense énergétique moindre.Also, the object of the present invention is to provide a steam iron having an ironing sole providing significantly improved ironing performance. Another object of the invention is to provide an iron providing better ironing performance for less energy expenditure.

A cet effet, l'invention a pour objet un fer à repasser comprenant une semelle comportant une face inférieure présentant une surface de glisse venant au contact du linge et comportant au moins un évidement alimenté avec de la vapeur, l'évidement étant bordé sur toute sa périphérie par la surface de glisse de sorte que l'évidement forme une cavité de diffusion de la vapeur qui est entourée par la surface de glisse lorsque la semelle est appliquée contre le linge à repasser, caractérisé en ce que la profondeur de l'évidement est supérieure ou égale à 1 mm.For this purpose, the subject of the invention is an iron comprising a sole having a lower face having a sliding surface coming into contact with the laundry and having at least one recess fed with steam, the recess being bordered on any its periphery by the sliding surface so that the recess forms a steam diffusion cavity which is surrounded by the sliding surface when the soleplate is applied against the ironing cloth, characterized in that the depth of the recess is greater than or equal to 1 mm.

Une telle profondeur de l'évidement permet de réduire l'énergie transmise par rayonnement par le fond de l'évidement vers la surface du linge de sorte que le linge est plus fortement humidifié par le coussin de vapeur se formant dans l'évidement.Such depth of the recess reduces the energy transmitted by radiation from the bottom of the recess to the surface of the laundry so that the laundry is more heavily moistened by the vapor cushion forming in the recess.

Selon une autre caractéristique de l'invention, la profondeur de l'évidement est comprise entre 1 et 5 mm.According to another characteristic of the invention, the depth of the recess is between 1 and 5 mm.

La profondeur de l'évidement sera choisie en fonction de la nature du matériau utilisé pour réaliser la surface de la semelle, la profondeur de l'évidement étant d'autant plus importante que l'émissivité du matériau utilisé est importante. A titre d'exemple pour une semelle utilisant un matériau à faible émissivité, tel que de l'inox, la profondeur de l'évidement sera plutôt proche de 1 mm et de préférence de l'ordre de 1,5 mm. A l'inverse, pour une surface de semelle réalisée dans un matériau à forte émissivité, tel qu'une semelle émail, la profondeur de l'évidement sera plus importante, plutôt proche de 5 mm et préférentiellement de l'ordre de 4 mm.The depth of the recess will be chosen according to the nature of the material used to make the surface of the sole, the depth of the recess being all the more important that the emissivity of the material used is important. As an example for a sole using a low-emissivity material, such as stainless steel, the depth of the recess will be rather close to 1 mm and preferably of the order of 1.5 mm. Conversely, for a sole surface made of a material with high emissivity, such as an enamel sole, the depth of the recess will be greater, rather close to 5 mm and preferably of the order of 4 mm.

Selon une autre caractéristique de l'invention, la surface de glisse est démunie de trous de sortie de vapeur.According to another characteristic of the invention, the sliding surface is devoid of steam outlet holes.

Une telle caractéristique permet d'assurer un bon assèchement du linge après sa forte humidification par le coussin de vapeur formé dans l'évidement. On obtient ainsi une semelle offrant des performances de repassage très élevées.Such a characteristic makes it possible to ensure a good drying of the laundry after its high humidification by the steam cushion formed in the recess. This gives a soleplate with very high ironing performance.

Selon encore une autre caractéristique de l'invention, le fond de l'évidement est constitué par une surface plane munie de trous de sortie de vapeur.According to yet another characteristic of the invention, the bottom of the recess is constituted by a flat surface provided with steam outlet holes.

Selon d'autres modes particuliers de réalisation, le fer à repasser selon l'invention peut comprendre l'une ou plusieurs des combinaisons prises isolément ou selon toutes les combinaisons techniquement possibles :

  • la surface de glisse représente moins de 50% de la surface totale de la face inférieure de la semelle ;
  • la surface de glisse est disposée en bordure de la semelle ;
  • la surface de glisse est constituée par une bande plane s'étendant le long du contour de la semelle ;
  • la bande plane présente une largeur inférieure à 3 cm ;
  • l'évidement comporte une zone d'émission de vapeur au niveau d'une pointe avant de la semelle munie de trous de sortie de vapeur ;
  • la surface de glisse de la semelle comporte des excroissances venant réduire localement la surface de l'évidement derrière la zone d'émission de vapeur de la pointe avant de la semelle ;
  • la surface de glisse est munie de trous de sortie de vapeur uniquement au niveau de la pointe avant de la semelle ;
  • la semelle comporte un seul évidement, cet évidement occupant une position centrale sur la semelle;
  • la semelle comporte plusieurs évidements distincts ;
  • l'évidement comporte des éléments en relief faisant saillie dans le fond de l'évidement et venant au contact du linge lorsque la semelle est appliquée contre le linge à repasser ;
  • les éléments en relief présentent une forme allongée.
According to other particular embodiments, the iron according to the invention may comprise one or more combinations in isolation or in any technically possible combination:
  • the sliding surface represents less than 50% of the total surface of the lower face of the sole;
  • the sliding surface is disposed at the edge of the sole;
  • the sliding surface is constituted by a flat strip extending along the contour of the sole;
  • the flat strip has a width less than 3 cm;
  • the recess comprises a vapor emission zone at a front tip of the soleplate provided with steam outlet holes;
  • the sliding surface of the sole comprises protrusions locally reducing the surface of the recess behind the vapor emission zone of the front tip of the sole;
  • the sliding surface is provided with steam outlet holes only at the front tip of the sole;
  • the sole has a single recess, this recess occupying a central position on the sole;
  • the sole has several distinct recesses;
  • the recess comprises raised elements protruding into the bottom of the recess and coming into contact with the laundry when the sole is applied against the clothes to be ironed;
  • the raised elements have an elongated shape.

L'invention concerne également un appareil de repassage comportant un générateur vapeur sous pression relié par un conduit de vapeur à un fer à repasser tel que précédemment décrit.The invention also relates to an ironing apparatus comprising a pressurized steam generator connected by a steam duct to an iron as previously described.

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 d'un fer à repasser à vapeur selon un mode particulier de réalisation de l'invention ;
  • la figure 2 est une vue de côté du fer à repasser à vapeur de la figure 1 dans laquelle la base du boîtier est partiellement arrachée pour laisser apparaître une coupe longitudinale du corps chauffant et de la semelle;
  • la figure 3 est une vue de dessous de la semelle du fer de la figure 1 ;
  • la figure 4 est une vue en coupe selon la ligne IV-IV de semelle de la figure 3 ;
  • la figure 5 est une vue de dessous d'une variante de réalisation de la semelle de la figure 3 ;
  • la figure 6 est une vue en coupe selon la ligne VI-VI de la semelle de la figure 5 ;
  • la figure 7 est une vue en perspective d'un fer à repasser selon un autre mode particulier de réalisation de l'invention.
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 a perspective view of a steam iron according to a particular embodiment of the invention;
  • the figure 2 is a side view of the steam iron of the figure 1 wherein the base of the housing is partially broken away to reveal a longitudinal section of the heating body and the sole;
  • the figure 3 is a bottom view of the iron sole of the figure 1 ;
  • the figure 4 is a sectional view along line IV-IV of the sole of the figure 3 ;
  • the figure 5 is a bottom view of an alternative embodiment of the sole of the figure 3 ;
  • the figure 6 is a sectional view along the line VI-VI of the sole of the figure 5 ;
  • the figure 7 is a perspective view of an iron according to another particular embodiment of the invention.

Les figures 1 et 2 représentent un fer à repasser à vapeur comportant une semelle 1 de repassage, avantageusement réalisée en acier inox. La semelle 1 est surmontée d'un boîtier 2 en matière plastique renfermant, de manière connue en soi, un réservoir d'eau. Le boîtier 2 comprend une poignée de préhension 20 reliée d'une part à la partie avant du fer et d'autre part à deux bras de liaisons 21, 22 s'étendant symétriquement à l'arrière du fer, ces deux bras 21, 22 formant un talon sur lequel le fer peut reposer verticalement lors de phases inactives de repassage.The figures 1 and 2 represent a steam iron having a sole 1 ironing, advantageously made of stainless steel. The sole 1 is surmounted by a plastic housing 2 containing, in a manner known per se, a water tank. The housing 2 comprises a gripping handle 20 connected on the one hand to the front part of the iron and on the other hand to two link arms 21, 22 extending symmetrically at the rear of the iron, these two arms 21, 22 forming a heel on which the iron can stand vertically during inactive ironing phases.

Le boîtier 2 renferme un corps chauffant 3, constitué par une fonderie d'aluminium disposée au contact thermique de la face supérieure de la semelle 1, le corps chauffant 3 comportant une résistance électrique 30 et une chambre de vaporisation 31 pour la production de vapeur. Le boîtier 2 renferme également, de manière connue en soi, des moyens pour alimenter la chambre de vaporisation avec de l'eau en provenance du réservoir, ces moyens étant avantageusement constitués par un boisseau goutte à goutte ou par une pompe, non représentés sur les figures.The housing 2 contains a heating body 3, consisting of an aluminum foundry disposed in thermal contact with the upper face of the sole 1, the heating body 3 having an electrical resistance 30 and a vaporization chamber 31 for the production of steam. The casing 2 also contains, in a manner known per se, means for supplying the vaporization chamber with water coming from the reservoir, these means advantageously being constituted by a dropper or by a pump, not shown on the FIGS.

La face inférieure de la semelle 1 du fer comporte un évidement 10 dont le contour extérieur suit pour l'essentiel le contour de la semelle 1, cet évidement 10 comportant un fond 10A plan disposé en retrait par rapport à une surface de glisse 11 s'étendant le long du pourtour de la semelle 1, destinée à venir en contact avec le linge lors des phases de repassage.The lower face of the sole 1 of the iron has a recess 10 whose outer contour substantially follows the contour of the sole 1, this recess 10 having a bottom 10A plane disposed with respect to a sliding surface 11 s' extending along the periphery of the sole 1, intended to come into contact with the laundry during the ironing phases.

Le fond 10A de l'évidement est muni de trous 12 de sortie de vapeur reliés à la chambre de vaporisation 31 par une chambre de distribution 32 réalisée sur la face inférieure du corps chauffant 3. L'évidement 10 constitue ainsi une cavité pour la diffusion de la vapeur qui est ceinturée par la surface de glisse 11, la vapeur étant piégée dans cette cavité lorsque la semelle 1 est appliquée contre le linge à repasser.The bottom 10A of the recess is provided with steam outlet holes 12 connected to the vaporization chamber 31 by a distribution chamber 32 formed on the lower face of the heating body 3. The recess 10 thus constitutes a cavity for the diffusion steam which is surrounded by the sliding surface 11, the steam being trapped in this cavity when the sole 1 is applied against the clothes to be ironed.

Conformément à la figure 3, ces trous 12 de sortie de vapeur sont avantageusement répartis en deux groupes, un premier groupe comprenant plus d'une trentaine de trous 12 de sortie de vapeur répartis dans la zone centrale de la semelle 1 et un second groupe comprenant un nombre réduit de trous 12 de sortie vapeur disposés à proximité de la pointe avant de la semelle 1 de manière à privilégier une meilleure imprégnation de la vapeur dans ces deux zones de la semelle 1.In accordance with the figure 3 these steam outlet holes 12 are advantageously divided into two groups, a first group comprising more than thirty steam outlet holes 12 distributed in the central zone of the sole 1 and a second group comprising a reduced number of holes. 12 vapor outlet disposed near the front tip of the sole 1 so as to prefer a better impregnation of the steam in these two areas of the sole 1.

De manière avantageuse, la surface de glisse 11 de la semelle représente moins de 50% de la surface totale de la face inférieure de la semelle 1 et préférentiellement entre 30 et 45 % de la surface totale de la face inférieure de la semelle 1. A titre d'exemple, la surface de glisse 11 de la semelle illustrée à la figure 3 représente seulement 36% de la surface totale de la face inférieure de la semelle 1, la surface du fond 10A de l'évidement 10 représentant 64% de la surface totale de la face inférieure de la semelle 1.Advantageously, the sliding surface 11 of the soleplate represents less than 50% of the total surface of the lower face of the soleplate 1 and preferably between 30 and 45% of the total surface of the lower face of the soleplate 1.A for example, the sliding surface 11 of the sole illustrated in FIG. figure 3 represents only 36% of the total area of the lower face of the sole 1, the bottom surface 10A of the recess 10 representing 64% of the total surface of the lower face of the sole 1.

Une telle caractéristique permet d'obtenir, au niveau de la surface de glisse 11, une pression exercée sur le tissu à repasser qui est suffisamment importante pour limiter la diffusion de vapeur sous la surface de glisse 11. Il se forme ainsi sous la semelle 1 du fer à repasser un coussin de vapeur sous pression assurant une très bonne imprégnation du linge avec la vapeur.Such a characteristic makes it possible to obtain, at the sliding surface 11, a pressure exerted on the fabric to be ironed which is large enough to limit the diffusion of steam under the sliding surface 11. It thus forms under the sole 1 iron a pressurized steam cushion ensuring a very good impregnation of the laundry with steam.

Plus particulièrement selon l'invention, la profondeur de l'évidement 10 est comprise entre 1 et 5 mm et avantageusement de l'ordre de 1,5 mm. En effet, la demanderesse s'est rendue compte que lorsque l'évidement 10 présente une profondeur inférieure à 1 mm, le coussin de vapeur n'assure pas une humidification suffisante du linge pour permettre un repassage performant. A l'inverse, lorsque la profondeur de l'évidement 10 est supérieure à 5 mm, la chaleur rayonnée par le fond 10A de l'évidement 10 plan est alors insuffisante pour contribuer à l'assèchement du linge de sorte que le linge après repassage peut rester humide.More particularly according to the invention, the depth of the recess 10 is between 1 and 5 mm and advantageously of the order of 1.5 mm. Indeed, the Applicant has realized that when the recess 10 has a depth of less than 1 mm, the steam cushion does not ensure sufficient humidification of the laundry to enable efficient ironing. Conversely, when the depth of the recess 10 is greater than 5 mm, the heat radiated by the bottom 10A of the recess 10 plan is then insufficient to contribute to the drying of the laundry so that the laundry after ironing can stay wet.

En particulier, la profondeur de l'évidement sera fonction de l'émissivité du matériau utilisé pour réaliser la surface de la semelle, la profondeur de l'évidement étant d'autant plus importante que l'émissivité du matériau est élevée. A titre d'exemple, dans le cas d'une semelle réalisée en matériau inox, la profondeur de l'évidement sera préférentiellement de l'ordre de 1,5 mm, la faible émissivité du matériau inox permettant d'obtenir une forte humidification du linge par le coussin de vapeur du fait du faible rayonnement émis par le fond de l'évidement. A l'inverse, dans le cas d'une semelle recouverte d'une couche d'émail, la profondeur de l'évidement sera préférentiellement de l'ordre de 4 mm pour limiter l'énergie dégagée par rayonnement par le fond de l'évidement.In particular, the depth of the recess will be a function of the emissivity of the material used to make the surface of the sole, the depth of the recess being all the more important as the emissivity of the material is high. For example, in the case of a sole made of stainless steel material, the depth of the recess will preferably be of the order of 1.5 mm, the low emissivity of the stainless steel material to obtain a high humidification of the laundry by the steam cushion due to the low radiation emitted by the bottom of the recess. Conversely, in the case of a sole covered with a layer of enamel, the depth of the recess will preferably be of the order of 4 mm to limit the energy released by radiation from the bottom of the recess.

De manière avantageuse, la surface de glisse 11 est démunie de trous de sortie de vapeur. Une telle caractéristique permet d'éviter la diffusion de vapeur sous la surface de glisse 11 et garanti un assèchement optimum du linge après sa forte humidification par le coussin de vapeur formé dans l'évidement 10.Advantageously, the gliding surface 11 is devoid of steam outlet holes. Such a characteristic makes it possible to prevent the diffusion of steam under the gliding surface 11 and guarantees an optimum drying of the laundry after its heavy wetting by the steam cushion formed in the recess 10.

La surface de glisse 11 présente préférentiellement la forme d'une bande plane d'une largeur inférieure à 3 cm s'étendant le long du pourtour de la semelle 1. A titre d'exemple, la surface de glisse 11 de la semelle illustrée sur les figures 1 à 4 est constituée par une bande plane présentant une largeur de l'ordre de 1,5 cm, cette largeur étant réduite au niveau de la pointe avant de la semelle 1.The sliding surface 11 preferably has the shape of a flat strip with a width less than 3 cm extending along the periphery of the sole 1. For example, the sliding surface 11 of the soleplate illustrated on FIG. the Figures 1 to 4 is constituted by a flat strip having a width of the order of 1.5 cm, this width being reduced at the level of the front tip of the sole 1.

Une telle semelle permet d'obtenir une très grande efficacité de repassage, la faible surface de glisse au contact du linge permettant d'améliorer la glisse de la semelle et le coussin de vapeur formé au niveau de l'évidement assurant une très bonne imprégnation du linge avec la vapeur sur toute la surface de l'évidement avant que la surface de glisse, démunie de trous de sortie de vapeur, n'assure l'assèchement du linge.Such a sole makes it possible to obtain a very high ironing efficiency, the low gliding surface in contact with the laundry making it possible to improve the glide of the sole and the vapor cushion formed at the level of the recess ensuring a very good impregnation of the laundry with steam over the entire surface of the recess before the sliding surface, lacking steam outlet holes, ensures the drying of the laundry.

Cette meilleure imprégnation du linge permet également d'obtenir un fer à repasser à vapeur possédant un meilleur rendement énergétique, la vapeur produite par le fer étant dans sa plus grande partie utilisée pour humidifier le linge et non pas diffusée dans l'atmosphère. L'utilisation d'une telle semelle de repassage permet ainsi d'obtenir une efficacité équivalente de repassage avec un fer à repasser possédant un plus faible débit de vapeur et donc une puissance plus faible.This better impregnation of the linen also makes it possible to obtain a steam iron having a better energy efficiency, the steam produced by the iron being in the greater part used to moisten the laundry and not diffused into the atmosphere. The use of such an ironing plate thus provides an equivalent ironing efficiency with an iron having a lower steam flow and therefore a lower power.

Les figures 5 et 6 représentent une variante de réalisation de la semelle de fer à repasser illustrée aux figures 3 et 4, cette semelle étant destinée à équiper le fer à repasser de la figure 1. Dans cette variante de réalisation, l'évidement 10 comporte localement des bossages 13 en relief faisant saillie au milieu de l'évidement 10, la hauteur des bossages étant telle que le sommet du bossage 13 parvient à hauteur ou légèrement au dessus de la surface de glisse 11 définissant le pourtour de la semelle 1.The Figures 5 and 6 represent an embodiment variant of the iron soleplate illustrated in FIGS. Figures 3 and 4 , this sole being intended to equip the iron of the figure 1 . In this variant embodiment, the recess 10 locally comprises bosses 13 in relief projecting in the middle of the recess 10, the height of the bosses being such that the top of the boss 13 reaches height or slightly above the gliding surface 11 defining the periphery of the sole 1.

L'extrémité supérieure des bossages 13 comporte une surface de glisse 13A venant au contact du linge lors des opérations de repassage, les bossages 13 présentant préférentiellement plusieurs branches disposées en étoile, chaque branche présentant avantageusement une largeur inférieure à 1 cm de manière à constituer des raclettes mettant sous tension le linge lors du déplacement du fer.The upper end of the bosses 13 has a sliding surface 13A coming into contact with the laundry during ironing operations, the bosses 13 preferably having a plurality of branches arranged in a star, each branch advantageously having a width of less than 1 cm so as to constitute squeegees putting the linen under tension when moving the iron.

La figure 7 représente une variante de réalisation du fer à repasser de la figure 1 dans laquelle la semelle 1 en inox est remplacée par une semelle 101 en aluminium recouverte d'une couche d'émail.The figure 7 represents an alternative embodiment of the iron of the figure 1 in which the sole 1 of stainless steel is replaced by an insole 101 of aluminum covered with a layer of enamel.

La face inférieure de la semelle 101 comporte un évidement 110 comportant un fond 110A plan disposé en retrait par rapport à une surface de glisse 111 s'étendant le long du pourtour de la semelle 101, la surface de glisse 111 représentant de l'ordre de 45% de la surface totale de la semelle.The underside of the soleplate 101 has a recess 110 having a plane bottom 110A arranged recessed with respect to a sliding surface 111 extending along the periphery of the sole 101, the sliding surface 111 representing the order of 45% of the total surface of the sole.

Plus particulièrement selon l'invention, le fond 110A de l'évidement 110 est en retrait de l'ordre de 4 mm par rapport à la surface de glisse 111. Cette profondeur relativement importante de l'évidement 110 permet de limiter la chaleur reçue par rayonnement par le linge du fait de la forte émissivité de l'émail.More particularly according to the invention, the bottom 110A of the recess 110 is set back by about 4 mm with respect to the sliding surface 111. This relatively large depth of the recess 110 makes it possible to limit the heat received by radiation by the linen because of the high emissivity of the enamel.

Le fond 110A est muni de trous de sortie de vapeur 112 qui sont reliés, de manière connue en soi, à une chambre de vaporisation intégrée dans le corps du fer ou à un générateur de vapeur séparé.The bottom 110A is provided with steam outlet holes 112 which are connected, in a manner known per se, to a vaporization chamber integrated in the body of the iron or to a separate steam generator.

L'évidement 110 présente un contour extérieur épousant le contour de la semelle 101 dans la zone centrale de la semelle 101 de sorte que, dans cette zone centrale, l'évidement 110 est bordé latéralement par une surface de glisse 111 présentant une largeur de l'ordre de 1 à 3 cm. L'évidement 110 est bordé, sur l'arrière de la semelle 101, par une surface de glisse 111 de plus grande largeur, de l'ordre de 4cm permettant d'obtenir une surface de glisse importante sur l'arrière de la semelle 101 pour assécher le linge.The recess 110 has an outer contour conforming to the contour of the sole 101 in the central zone of the sole 101 so that, in this central zone, the recess 110 is laterally bordered by a sliding surface 111 having a width of 1 mm. order of 1 to 3 cm. The recess 110 is bordered on the rear of the sole 101 by a gliding surface 111 of greater width, of the order of 4 cm, to obtain a large sliding surface on the rear of the sole 101. to dry the laundry.

Dans une variante de réalisation illustrée en pointillé sur la figure 7, la partie arrière de la semelle 101 pourra également comporter un évidement 120, distinct de l'évidement 110, d'une profondeur de l'ordre de 4 mm, et muni de trous de sortie de vapeur 112, la surface de glisse 111 disposée entre l'évidement 110 et l'évidement 120 contribuant à assécher et à racler le linge.In an alternative embodiment illustrated in dotted line on the figure 7 the rear part of the sole 101 may also comprise a recess 120, distinct from the recess 110, of a depth of the order of 4 mm, and provided with steam outlet holes 112, the gliding surface 111 arranged between the recess 110 and the recess 120 helping to dry and scrape the laundry.

De manière préférentielle, l'évidement 110 présente un étranglement dans la partie avant de la semelle 101, cet étranglement étant formé par deux excroissances 111A de la surface de glisse 111 s'étendant vers l'intérieur de l'évidement 110.Preferably, the recess 110 has a constriction in the front portion of the sole 101, this constriction being formed by two protuberances 111A of the sliding surface 111 extending towards the inside of the recess 110.

Les deux excroissances 111A forment une délimitation entre une premier groupe comprenant environ une cinquantaine de trous de sortie de vapeur 112 disposés dans le fond 110A, au niveau de la zone centrale de la semelle, et un second groupe comprenant environ une dizaine de trous de sortie de vapeur 112A disposés devant les deux excroissances 111A, à proximité de la pointe avant de la semelle 101.The two protuberances 111A form a delimitation between a first group comprising about fifty steam outlet holes 112 arranged in the bottom 110A, at the level of the central zone of the sole, and a second group comprising about ten exit holes. of steam 112A disposed in front of the two protuberances 111A, near the front tip of the sole 101.

Les trous de sortie de vapeur 112A sont avantageusement répartis à la fois dans le fond de l'évidement 110A et au niveau de la surface de glisse 111 de la pointe avant de la semelle et sont préférentiellement alimentés par un flux de vapeur spécifique, indépendant du flux de vapeur alimentant les autres trous de sortie de vapeur 112 de la semelle 101. Cette caractéristique permet d'obtenir un flux de vapeur concentré au niveau de la pointe avant de la semelle 101 pour humidifier fortement une zone du linge lors la réalisation des travaux de précision. Les excroissances 111A permettent, quant à elles, d'augmenter la surface de glisse venant au contact du linge derrière la zone d'émission de vapeur à la pointe avant de la semelle 101, ce qui permet d'assécher plus efficacement le linge humidifié par les trous de sortie de vapeur 112A.The steam outlet holes 112A are advantageously distributed both in the bottom of the recess 110A and at the sliding surface 111 of the front tip of the sole and are preferably fed by a specific steam flow, independent of the steam flow supplying the other steam outlet holes 112 of the sole 101. This characteristic allows to obtain a concentrated vapor flow at the front tip of the sole 101 to strongly moisten an area of the laundry when carrying out the work precision. The protuberances 111A make it possible, for their part, to increase the sliding surface coming into contact with the laundry behind the vapor emission zone at the front tip of the soleplate 101, which makes it possible to dry more efficiently the moistened laundry by the steam outlet holes 112A.

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, la bande constituant la surface de glisse pourra présenter, en section transversale, une surface bombée plutôt qu'une surface plane afin que la surface en contact soit réduite et que la pression exercée par la surface de glisse sur le linge soit encore augmentée.Thus, in an alternative embodiment, the strip constituting the sliding surface may have, in cross section, a convex surface rather than a flat surface so that the surface in contact is reduced and the pressure exerted by the sliding surface on the laundry is further increased.

Ainsi, dans une variante de réalisation non représentée, la surface du fond de l'évidement pourra être non plane ou inclinée par rapport à la surface de glisse, de manière à ce que la profondeur de l'évidement varie selon les zones de la semelle. Une telle caractéristique permet ainsi d'obtenir un taux d'humidification du linge différent suivant la zone de l'évidement, l'humidification du linge étant plus importante à l'endroit où l'évidement est le plus profond. A titre d'exemple la profondeur de l'évidement pourra être plus importante vers la pointe avant de la semelle et diminuer progressivement vers l'arrière de la semelle.Thus, in a variant embodiment not shown, the bottom surface of the recess may be non-flat or inclined relative to the sliding surface, so that the depth of the recess varies according to the zones of the soleplate. . Such a characteristic thus makes it possible to obtain a different wetting rate of the laundry according to the zone of the recess, the humidification of the laundry being greater where the recess is the deepest. For example, the depth of the recess may be greater towards the front tip of the sole and gradually decrease towards the rear of the sole.

Claims (15)

  1. A steam iron comprising a soleplate (1, 101) including a lower face with a glide surface (11, 111, 13A) coming into contact with the linen and containing at least one recess (10, 110, 120) supplied with steam, said recess (10, 110, 120) being bordered along its entire periphery by the glide surface (11, 111) such that the recess (10, 110, 120) forms a steam diffusion cavity which is surrounded by the glide surface (11, 110) when the soleplate (1, 101) is pressed against the linen to be ironed, characterised in that the depth of the recess (10, 110) is comprised between 1 and 5 mm.
  2. A steam iron according to claim 1, characterised in that said glide surface (11, 111, 13A) is devoid of steam outlet holes.
  3. A steam iron according to any one of claims 1 to 2, characterised in that the recess (10, 110, 120) contains a base (10A, 110A) formed by a flat surface with steam outlet holes (12, 112).
  4. A steam iron according to any one of claims 1 to 3, characterised in that the glide surface (11, 111, 13A) represents at least 50% of the total area of the lower face of the soleplate (1, 101).
  5. A steam iron according to any one of claims 1 to 4, characterised in that the glide surface (11, 111) is arranged on the border of the soleplate (1, 101).
  6. A steam iron according to claim 5, characterised in that said glide surface is formed by a flat strip (11, 111) extending along the contour of the soleplate (1, 101).
  7. A steam iron according to claim 6, characterised in that said flat strip (11) is less than 3 cm wide.
  8. A steam iron according to any one of claims 1 to 7, characterised in that said recess (110) contains a steam emission area at the front end of the soleplate (101) with steam outlet holes (112A).
  9. A steam iron according to claim 8, characterised in that the glide surface (111) of the soleplate contains protrusions (111A) that locally reduce the surface of the recess (110) behind the steam emission area of the front end of the soleplate (101).
  10. A steam iron according to claim 8 or 9, characterised in that the glide surface (111) contains steam outlet holes (112A) only at the front end of the soleplate (101).
  11. A steam iron according to any one of claims 1 to 10, characterised in that the soleplate (1) contains a single recess (10), this recess (10) occupying a central position on the soleplate (1).
  12. A steam iron according to any one of claims 1 to 10, characterised in that the soleplate (101) contains several distinct recesses (110, 120).
  13. A steam iron according to any one of claims 1 to 12, characterised in that the recess (10) contains raised elements (13) protruding in the base (10A) of the recess (10) and coming into contact with the linen when the soleplate is pressed against the linen to be ironed.
  14. A steam iron according to claim 13, characterised in that said raised elements (13) are elongated in shape.
  15. An ironing apparatus comprising a pressurised steam generator connected by a steam duct to a steam iron characterised in that said iron complies with one of claims 1 to 14.
EP10306244A 2009-11-12 2010-11-10 Iron comprising a soleplate with a recess provided with steam-outlet holes Active EP2325382B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10306244T PL2325382T3 (en) 2009-11-12 2010-11-10 Iron comprising a soleplate with a recess provided with steam-outlet holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0905431A FR2952385B1 (en) 2009-11-12 2009-11-12 IRON CONTAINING AN INSOLE HAVING AN EVIDENCE WITH VAPOR EXIT HOLES

Publications (2)

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EP2325382A1 EP2325382A1 (en) 2011-05-25
EP2325382B1 true EP2325382B1 (en) 2012-09-19

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US (1) US8707593B2 (en)
EP (1) EP2325382B1 (en)
CN (1) CN102061603B (en)
ES (1) ES2392501T3 (en)
FR (1) FR2952385B1 (en)
PL (1) PL2325382T3 (en)
PT (1) PT2325382E (en)

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Also Published As

Publication number Publication date
EP2325382A1 (en) 2011-05-25
FR2952385B1 (en) 2012-01-20
US20110107626A1 (en) 2011-05-12
PT2325382E (en) 2012-11-15
CN102061603A (en) 2011-05-18
US8707593B2 (en) 2014-04-29
ES2392501T3 (en) 2012-12-11
FR2952385A1 (en) 2011-05-13
CN102061603B (en) 2015-07-15
PL2325382T3 (en) 2012-12-31

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