EP0694646A1 - Steam iron - Google Patents

Steam iron Download PDF

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Publication number
EP0694646A1
EP0694646A1 EP95401636A EP95401636A EP0694646A1 EP 0694646 A1 EP0694646 A1 EP 0694646A1 EP 95401636 A EP95401636 A EP 95401636A EP 95401636 A EP95401636 A EP 95401636A EP 0694646 A1 EP0694646 A1 EP 0694646A1
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EP
European Patent Office
Prior art keywords
pump
piston
membrane
buttons
valves
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Granted
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EP95401636A
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German (de)
French (fr)
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EP0694646B1 (en
Inventor
Jacky René Paul Fourny
Gérard Louis Henri Guillot
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Moulinex SA
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Moulinex SA
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/22—Hand irons internally heated by electricity with means for supplying liquid to the article being ironed

Definitions

  • the present invention relates to steam irons which include a heating soleplate having in its lower face a series of steam outlet holes and in its upper face a vaporization chamber in relation to said holes and communicating with a reservoir. water.
  • steam irons which also include a pump capable of taking a dose of water from the tank and of sending this dose, via a selection device, either into the chamber. vaporization in order to suddenly obtain an abundant emission of vapor through the holes in the soleplate, either to a cold water sprayer located in the front part of the iron, this pump being of the piston type moving in a chamber suction which is provided in the pump body and which opens into the tank via a non-return valve.
  • a rotating joint is always subject over time to wear by friction on the bottom of the bowl which inevitably leads to the appearance of water leaks, detrimental to the proper functioning of the iron.
  • the production and mounting of this rotary type selector member are relatively complex and therefore particularly expensive for mass production of irons.
  • the object of the invention is to remedy these drawbacks and to produce a steam iron equipped with a selection device - super-steamer or spray - which is simple, economical and of high reliability.
  • the selection device comprises a deformable membrane having a substantially flat lower part provided with two protrusions each acting as a valve and being held in place in a sealed manner in a cup which is formed in the upper part of the piston of the pump and the bottom of which, on the one hand, communicates with the suction chamber by a discharge bore made in said piston, and on the other hand, has two orifices, namely an injection orifice connected to the vaporization chamber and a spray orifice connected to the sprayer, the two diaphragm valves being located respectively at the level of the two orifices and their operation being subject respectively to two manual control buttons, called spraying and spraying buttons respectively, which protrude from the upper part of the iron and whose the spray button is in relation to the valve associated with the spray orifice, while the spray button is in relation to the valve associated with the injection orifice, the membrane passing from a rest position, defined when the pump is primed, in which the two valves are closed and respectively seal the two orifices, namely
  • this deformable membrane with double valve constitutes a simple and unalterable member ensuring, according to the choice of the user, the selection between the supervisor and spraying functions, and this especially as the double valve diaphragm is integrated in the pump.
  • the steam iron 10 shown diagrammatically in FIG. 1 comprises a heating sole 11 having, on its lower face, a series of steam outlet holes 12 and, on its upper face, a vaporization chamber 14 in relation to the holes 12 and communicating with a water tank 17.
  • This iron further comprises a pump, designated by the general reference 20, the body 21 of which has a vertical axis of symmetry XX '(FIGS. 2, 3 and 4) and which is capable of taking a dose of water from the tank 17 and to send this dose, via a selection device 24 which will be described later, either to the vaporization chamber 14 in order to suddenly obtain an abundant emission of vapor through the holes 12 in the soleplate 11, or towards a cold water sprayer 25, of known structure, located in the anterior region of the iron.
  • a pump designated by the general reference 20, the body 21 of which has a vertical axis of symmetry XX '(FIGS. 2, 3 and 4) and which is capable of taking a dose of water from the tank 17 and to send this dose, via a selection device 24 which will be described later, either to the vaporization chamber 14 in order to suddenly obtain an abundant emission of vapor through the holes 12 in the soleplate 11, or towards a cold water sprayer 25, of known structure, located in the anterior region of the iron.
  • the pump 20 is of the piston type 27 moving in leaktight manner, under the action of a spring 29 disposed axially, in a cylindrical suction chamber 31 formed axially in the body 21 of the pump and opening at 33 into the reservoir 17 (FIG. 1) via a non-return valve presently constituted by a ball 35 cooperating with a conical seat 36.
  • the piston 27 of the pump 20 is extended at its upper part by a cylindrical cup 39, the bottom 40 of which communicates with the suction chamber 31 by a cylindrical discharge bore 42 made axially in the piston 27, and has two orifices formed symmetrically relative to the axis XX ′ of the body 21 of the pump, namely an injection orifice 44 connected to the vaporization chamber 14 of the iron (FIG. 1) and a spray orifice 45 connected to the sprayer 25.
  • the two orifices 44 and 45 open respectively into two opposite conduits 47 and 48 orthogonal to the axis XX 'of the body 21 of the pump and forming an integral part of the piston 27 of the pump ;
  • the conduit 47, into which the injection orifice opens 44 is connected to the vaporization chamber 14 by a flexible injection tube 51
  • the conduit 48, into which the spraying orifice opens 45 is connected to the sprayer 25 by another flexible injection tube 53.
  • the selection device 24 illustrated in FIGS. 2 to 4 and intended to authorize the choice between the abrupt emission of vapor or "super-steamer” and the spraying comprises a flexible deformable membrane 56, held in place in the cup 39 the piston 27 of the pump and having a substantially flat lower part 56a provided with two protrusions 58 and 59 each acting as a valve being situated respectively at the level of the two orifices 44 and 45; the two valves 59 and 58 of the membrane 56 have an operation subject respectively to two manual control buttons, called spraying buttons respectively 62 and spray 63, which protrude one behind the other from the upper part of the iron (FIG.
  • the membrane 56 has a substantially U-shaped cross section whose bottom 56a carries the two valves 58 and 59, and whose peripheral end edge 66 is held in abutment against the internal surface of the cup 39 at by means of a part 68 forming a closure plug for the cup.
  • the two buttons, respectively spraying 62 and spraying 63 are push buttons, optionally each equipped with a return spring, and provided with actuating rods 62a, 63a which are engaged respectively in two bores 71 and 72 made vertically in the closure plug 68, directly above the two valves 59, 58 of the membrane 56.
  • buttons 62, 63 could be replaced by any other equivalent means, such as , for example, by two rocker buttons and could also be arranged laterally next to each other relative to the upper part of the iron, without departing from the spirit of the invention.
  • the assembly formed by the membrane 56 and the two valves 58, 59 is made of an elastomeric material, such as for example a silicone, and constitutes in itself a seal between the piston 27 of the pump and the blanking plug 68.
  • the piston 27, the membrane 56 with two valves, the closure plug 68 and the two control buttons 62, 63 constitute a unitary assembly, thus significantly facilitating the mounting of the pump to the inside the iron.
  • the user presses one or the other of the spray 62 and spray 63 buttons so as to lower the piston 27 into the chamber 31, then by releasing this button, the piston 27 rises under the effect of the spring 29.
  • a vacuum is then created in the pump, which has the effect of causing the two valves 58 and 59 to be pressed against the bottom of the cup 39, thus closing the two orifices 44 and 45, and the valve 35 opens and the water is drawn into the chamber 31 through the inlet 33.
  • the pump 20 is thus primed, as illustrated in FIG. figure 2.
  • section of the bore 42 is larger than the section of the two orifices, injection 44 and spray 45 respectively, and the outlet 33 so as to prevent with certainty any backflow of water by the spray orifice due to the pressure generated by the sudden evaporation of water in the vaporization chamber when the iron is used in its super-steam function.
  • non-return valve 75 in FIG. 1, between the outlet of the pump 20, on the side of the orifice d injection 44, and the inlet of the vaporization chamber 14.
  • This non-return valve 75 is constituted, for example, by a perforated membrane displaceable under the action of the pressure prevailing in the vaporization chamber 14 and suitable for coming close the outlet of the injection pipe 51.
  • this non-return valve 75 could be constituted by any other equivalent means, such as, for example, by a simple ball or by a flange formed in the plug. obturation 68, perpendicular to the valve 58 associated with the injection orifice 44, without departing from the scope of the invention.

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

Abstract

The iron has a heated sole plate (11) with steam outlets (12) and a steam chamber (14) linked to a water reservoir (17). It incorporates a pump (20) which extracts a portion of water from the reservoir and delivers it through a selector either to the steam chamber or to a cold water atomiser. The selector comprises a deformable membrane (56) with two valves (58, 59) linked to two apertures - an injection aperture (44) feeding the steam chamber (14), and an atomising aperture (49) feeding the atomiser - and operated by two separate buttons (62, 63). The membrane occupies a working position when either of the buttons is operated, in which one of the valves is kept closed and the other is opened. <IMAGE>

Description

La présente invention se rapporte aux fers à repasser à vapeur qui comprennent une semelle chauffante présentant dans sa face inférieure une série de trous de sortie de vapeur et dans sa face supérieure une chambre de vaporisation en relation avec lesdits trous et communiquant avec un réservoir d'eau.The present invention relates to steam irons which include a heating soleplate having in its lower face a series of steam outlet holes and in its upper face a vaporization chamber in relation to said holes and communicating with a reservoir. water.

Elle concerne, plus précisément, les fers à repasser à vapeur qui comportent en outre une pompe propre à prélever dans le réservoir une dose d'eau et à envoyer cette dose, par l'intermédiaire d'un dispositif de sélection, soit dans la chambre de vaporisation afin d'obtenir brusquement une abondante émission de vapeur à travers les trous de la semelle, soit vers un pulvérisateur d'eau froide situé dans la partie antérieure du fer, cette pompe étant du type à piston se déplaçant dans une chambre d'aspiration qui est ménagée dans le corps de la pompe et qui débouche dans le réservoir via un clapet anti-retour.More specifically, it relates to steam irons which also include a pump capable of taking a dose of water from the tank and of sending this dose, via a selection device, either into the chamber. vaporization in order to suddenly obtain an abundant emission of vapor through the holes in the soleplate, either to a cold water sprayer located in the front part of the iron, this pump being of the piston type moving in a chamber suction which is provided in the pump body and which opens into the tank via a non-return valve.

On sait qu'avec de tels fers, la brusque émission de vapeur ou "supervapeur" est utile pour effectuer le marquage des plis dans les tissus épais, par exemple des plis de pantalons, tandis que la pulvérisation d'eau froide sert, par exemple, à éliminer les faux plis, notamment sur les tissus trop secs.It is known that with such irons, the sudden emission of vapor or "super-steamer" is useful for carrying out the marking of the folds in thick fabrics, for example folds of pants, while the spraying of cold water serves, for example , to eliminate creases, especially on excessively dry fabrics.

Dans des fers à repasser à vapeur connus de ce genre, le dispositif de sélection assurant le choix entre supervapeur et pulvérisation comporte un organe sélecteur qui est monté rotatif dans une cuvette annulaire fixe pourvue dans son fond de deux orifices angulairement espacés, à savoir un orifice d'injection relié à la chambre de vaporisation et un orifice de pulvérisation relié au pulvérisateur, et qui porte un obturateur souple formant un joint tournant propre à venir fermer l'un ou l'autre des deux orifices selon la position angulaire de cet organe sélecteur. Toutefois, un tel joint tournant est toujours sujet dans le temps à une usure par frottement sur le fond de la cuvette qui conduit inévitablement à l'apparition de fuites d'eau, nuisant au bon fonctionnement du fer à repasser. De plus, la réalisation et le montage de cet organe sélecteur du type rotatif sont relativement complexes et donc particulièrement coûteux pour une fabrication en grande série de fers à repasser.In known steam irons of this kind, the selection device ensuring the choice between super-steamer and spraying comprises a selector member which is rotatably mounted in a fixed annular bowl provided at its bottom with two angularly spaced orifices, namely an orifice injection connected to the vaporization chamber and a spray orifice connected to the sprayer, and which carries a flexible shutter forming a clean rotating joint to close one or the other of the two orifices according to the angular position of this selector member . However, such a rotating joint is always subject over time to wear by friction on the bottom of the bowl which inevitably leads to the appearance of water leaks, detrimental to the proper functioning of the iron. In addition, the production and mounting of this rotary type selector member are relatively complex and therefore particularly expensive for mass production of irons.

L'invention a pour but de remédier à ces inconvénients et de réaliser un fer à repasser à vapeur équipé d'un dispositif de sélection - supervapeur ou pulvérisation - qui soit simple, économique et d'une grande fiabilité.The object of the invention is to remedy these drawbacks and to produce a steam iron equipped with a selection device - super-steamer or spray - which is simple, economical and of high reliability.

Dans un fer selon l'invention, le dispositif de sélection comporte une membrane déformable présentant une partie inférieure sensiblement plate pourvue de deux protubérances faisant chacune office de clapet et étant maintenue en place de façon étanche dans une coupelle qui est formée dans la partie supérieure du piston de la pompe et dont le fond, d'une part, communique avec la chambre d'aspiration par un alésage de refoulement pratiqué dans ledit piston, et d'autre part, présente deux orifices, à savoir un orifice d'injection relié à la chambre de vaporisation et un orifice de pulvérisation relié au pulvérisateur, les deux clapets de la membrane étant situés respectivement au niveau des deux orifices et leur fonctionnement étant assujetti respectivement à deux boutons de commande manuelle, dits respectivement de vaporisation et de pulvérisation, qui font saillie de la partie supérieure du fer et dont le bouton de vaporisation est en relation avec le clapet associé à l'orifice de pulvérisation, tandis que le bouton de pulvérisation est en relation avec le clapet associé à l'orifice d'injection, la membrane passant d'une position de repos, définie lorsque la pompe est amorcée, dans laquelle les deux clapets sont fermés et obturent respectivement les deux orifices, à une position de travail, définie lorsque l'un ou l'autre des deux boutons est actionné, dans laquelle le clapet associé au bouton actionné est maintenu fermé par ledit bouton et obture l'orifice correspondant, tandis que le clapet associé à l'autre bouton s'ouvre par déformation de la membrane provoquée par la pression de l'eau refoulée à travers l'alésage du piston et dégage l'orifice correspondant par lequel passe l'eau refoulée.In an iron according to the invention, the selection device comprises a deformable membrane having a substantially flat lower part provided with two protrusions each acting as a valve and being held in place in a sealed manner in a cup which is formed in the upper part of the piston of the pump and the bottom of which, on the one hand, communicates with the suction chamber by a discharge bore made in said piston, and on the other hand, has two orifices, namely an injection orifice connected to the vaporization chamber and a spray orifice connected to the sprayer, the two diaphragm valves being located respectively at the level of the two orifices and their operation being subject respectively to two manual control buttons, called spraying and spraying buttons respectively, which protrude from the upper part of the iron and whose the spray button is in relation to the valve associated with the spray orifice, while the spray button is in relation to the valve associated with the injection orifice, the membrane passing from a rest position, defined when the pump is primed, in which the two valves are closed and respectively seal the two orifices, at a working position, defined when one or the other of the two buttons is actuated, in which the valve associated with the actuated button is kept closed by said button and closes the corresponding orifice, while the valve associated with the other button opens by deformation of the m embrane caused by the pressure of the water discharged through the bore of the piston and releases the corresponding orifice through which the water discharged passes.

Ainsi, cette membrane déformable à double clapet dont l'ouverture est sélectivement assujettie à la pression de l'eau refoulée, constitue un organe simple et inaltérable assurant, selon le choix de l'utilisateur, la sélection entre les fonctions supervapeur et pulvérisation, et ce d'autant que la membrane à double clapet est intégrée dans la pompe.Thus, this deformable membrane with double valve, the opening of which is selectively subject to the pressure of the pumped water, constitutes a simple and unalterable member ensuring, according to the choice of the user, the selection between the supervisor and spraying functions, and this especially as the double valve diaphragm is integrated in the pump.

Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre d'un mode particulier de réalisation pris à titre d'exemple non limitatif illustré aux dessins annexés dans lesquels :

  • la figure 1 est une vue schématique en coupe partielle d'un fer à repasser à vapeur selon l'invention ;
  • la figure 2 est une vue partielle, à plus grande échelle et en coupe, d'une pompe montée dans le fer de la figure 1, la pompe étant illustrée en position amorcée ; et
  • les figures 3 et 4 sont des vues analogues à la figure 2, montrant la pompe lors de l'utilisation du fer dans ses fonctions de supervapeur (figure 3) et de pulvérisation (figure 4).
The characteristics and advantages of the invention will become apparent from the following description of a particular embodiment taken by way of nonlimiting example illustrated in the accompanying drawings in which:
  • Figure 1 is a schematic view in partial section a steam iron according to the invention;
  • Figure 2 is a partial view, on a larger scale and in section, of a pump mounted in the iron of Figure 1, the pump being illustrated in the primed position; and
  • Figures 3 and 4 are views similar to Figure 2, showing the pump when using the iron in its supervisor (Figure 3) and spraying (Figure 4) functions.

Le fer à repasser à vapeur 10 représenté schématiquement à la figure 1 comprend une semelle chauffante 11 présentant, dans sa face inférieure, une série de trous de sortie de vapeur 12 et, dans sa face supérieure, une chambre de vaporisation 14 en relation avec les trous 12 et communiquant avec un réservoir d'eau 17.The steam iron 10 shown diagrammatically in FIG. 1 comprises a heating sole 11 having, on its lower face, a series of steam outlet holes 12 and, on its upper face, a vaporization chamber 14 in relation to the holes 12 and communicating with a water tank 17.

Ce fer comprend en outre une pompe, désignée par le repère général 20, dont le corps 21 présente un axe de symétrie vertical XX' (figures 2, 3 et 4) et qui est propre à prélever dans le réservoir 17 une dose d'eau et à envoyer cette dose, par l'intermédiaire d'un dispositif de sélection 24 que l'on décrira plus loin, soit dans la chambre de vaporisation 14 afin d'obtenir brusquement une abondante émission de vapeur à travers les trous 12 de la semelle 11, soit vers un pulvérisateur d'eau froide 25, de structure connue en soi, situé dans la région antérieure du fer.This iron further comprises a pump, designated by the general reference 20, the body 21 of which has a vertical axis of symmetry XX '(FIGS. 2, 3 and 4) and which is capable of taking a dose of water from the tank 17 and to send this dose, via a selection device 24 which will be described later, either to the vaporization chamber 14 in order to suddenly obtain an abundant emission of vapor through the holes 12 in the soleplate 11, or towards a cold water sprayer 25, of known structure, located in the anterior region of the iron.

Comme le montrent mieux les figures 2, 3 et 4, la pompe 20 est du type à piston 27 se déplaçant de manière étanche, sous l'action d'un ressort 29 disposé axialement, dans une chambre d'aspiration cylindrique 31 ménagée axialement dans le corps 21 de la pompe et débouchant en 33 dans le réservoir 17 (figure 1) via un clapet anti-retour constitué présentement par une bille 35 coopérant avec un siège conique 36.As shown better in FIGS. 2, 3 and 4, the pump 20 is of the piston type 27 moving in leaktight manner, under the action of a spring 29 disposed axially, in a cylindrical suction chamber 31 formed axially in the body 21 of the pump and opening at 33 into the reservoir 17 (FIG. 1) via a non-return valve presently constituted by a ball 35 cooperating with a conical seat 36.

Le piston 27 de la pompe 20 se prolonge à sa partie supérieure par une coupelle cylindrique 39 dont le fond 40 communique avec la chambre d'aspiration 31 par un alésage cylindrique de refoulement 42 pratiqué axialement dans le piston 27, et présente deux orifices ménagés symétriquement par rapport à l'axe XX' du corps 21 de la pompe, à savoir un orifice d'injection 44 relié à la chambre de vaporisation 14 du fer (figure 1) et un orifice de pulvérisation 45 relié au pulvérisateur 25.The piston 27 of the pump 20 is extended at its upper part by a cylindrical cup 39, the bottom 40 of which communicates with the suction chamber 31 by a cylindrical discharge bore 42 made axially in the piston 27, and has two orifices formed symmetrically relative to the axis XX ′ of the body 21 of the pump, namely an injection orifice 44 connected to the vaporization chamber 14 of the iron (FIG. 1) and a spray orifice 45 connected to the sprayer 25.

Dans l'exemple de réalisation illustré aux figures 1 à 4, les deux orifices 44 et 45 débouchent respectivement dans deux conduits opposés 47 et 48 orthogonaux à l'axe XX' du corps 21 de la pompe et faisant partie intégrante du piston 27 de la pompe ; le conduit 47, dans lequel débouche l'orifice d'injection 44, est relié à la chambre de vaporisation 14 par une tubulure souple d'injection 51, tandis que le conduit 48, dans lequel débouche l'orifice de pulvérisation 45, est relié au pulvérisateur 25 par une autre tubulure souple d'injection 53.In the embodiment illustrated in FIGS. 1 to 4, the two orifices 44 and 45 open respectively into two opposite conduits 47 and 48 orthogonal to the axis XX 'of the body 21 of the pump and forming an integral part of the piston 27 of the pump ; the conduit 47, into which the injection orifice opens 44, is connected to the vaporization chamber 14 by a flexible injection tube 51, while the conduit 48, into which the spraying orifice opens 45, is connected to the sprayer 25 by another flexible injection tube 53.

Selon l'invention, le dispositif de sélection 24 illustré aux figures 2 à 4 et destiné à autoriser le choix entre la brusque émission de vapeur ou "supervapeur" et la pulvérisation, comporte une membrane souple déformable 56, maintenue en place dans la coupelle 39 du piston 27 de la pompe et présentant une partie inférieure 56a sensiblement plate pourvue de deux protubérances 58 et 59 faisant chacune office de clapet en étant situées respectivement au niveau des deux orifices 44 et 45 ; les deux clapets 59 et 58 de la membrane 56 ont un fonctionnement assujetti respectivement à deux boutons de commande manuelle, dits respectivement de vaporisation 62 et de pulvérisation 63, qui font saillie l'un derrière l'autre de la partie supérieure du fer (figure 1) en étant disposés symétriquement par rapport à l'axe XX' du corps 21 de la pompe, et dont le bouton de vaporisation 62 est en relation avec le clapet 59 associé à l'orifice de pulvérisation 45, tandis que le bouton de pulvérisation 63 est en relation avec le clapet 58 associé à l'orifice d'injection 44, la membrane 56 passant d'une position de repos, définie lorsque la pompe 20 est amorcée, dans laquelle les deux clapets 58,59 sont fermés et obturent respectivement les deux orifices 44,45, à une position de travail, définie lorsque l'un ou l'autre des deux boutons 62,63 est actionné, dans laquelle le clapet associé au bouton actionné est maintenu fermé par ledit bouton et obture l'orifice correspondant, tandis que le clapet associé à l'autre bouton s'ouvre par déformation de la membrane 56 provoquée par la pression de l'eau refoulée à travers l'alésage 42 du piston et dégage l'orifice correspondant par lequel passe l'eau refoulée.According to the invention, the selection device 24 illustrated in FIGS. 2 to 4 and intended to authorize the choice between the abrupt emission of vapor or "super-steamer" and the spraying, comprises a flexible deformable membrane 56, held in place in the cup 39 the piston 27 of the pump and having a substantially flat lower part 56a provided with two protrusions 58 and 59 each acting as a valve being situated respectively at the level of the two orifices 44 and 45; the two valves 59 and 58 of the membrane 56 have an operation subject respectively to two manual control buttons, called spraying buttons respectively 62 and spray 63, which protrude one behind the other from the upper part of the iron (FIG. 1) being arranged symmetrically with respect to the axis XX 'of the body 21 of the pump, and the button of which vaporization 62 is in relation to the valve 59 associated with the spray orifice 45, while the spray button 63 is in relation to the valve 58 associated with the injection orifice 44, the membrane 56 passing from a position of rest, defined when the pump 20 is primed, in which the two valves 58, 59 are closed and respectively seal the two orifices 44, 45, in a working position, defined when one or the other of the two buttons 62 , 63 is actuated, in which the valve associated with the actuated button is kept closed by said button and closes the corresponding orifice, while the valve associated with the other button opens by deformation of the membrane 56 caused by the pressure of water pumped through the bore e 42 of the piston and releases the corresponding orifice through which the pumped water passes.

Dans cet exemple de réalisation, la membrane 56 présente une section droite sensiblement en U dont le fond 56a porte les deux clapets 58 et 59, et dont le bord périphérique d'extrémité 66 est maintenu en appui contre la surface interne de la coupelle 39 au moyen d'une pièce 68 formant un bouchon d'obturation de la coupelle. Dans cet exemple, les deux boutons, respectivement de vaporisation 62 et de pulvérisation 63, sont des boutons-poussoirs, éventuellement équipés chacun d'un ressort de rappel, et pourvus de tiges d'actionnement 62a,63a qui sont engagées respectivement dans deux alésages 71 et 72 pratiqués verticalement dans le bouchon d'obturation 68, à l'aplomb des deux clapets 59,58 de la membrane 56. Bien entendu, ces deux boutons-poussoirs 62,63 pourraient être remplacés par tout autre moyen équivalent, tel que, par exemple, par deux boutons basculants et pourraient également être disposés latéralement l'un à côté de l'autre relativement à la partie supérieure du fer, sans s'écarter pour autant de l'esprit de l'invention.In this embodiment, the membrane 56 has a substantially U-shaped cross section whose bottom 56a carries the two valves 58 and 59, and whose peripheral end edge 66 is held in abutment against the internal surface of the cup 39 at by means of a part 68 forming a closure plug for the cup. In this example, the two buttons, respectively spraying 62 and spraying 63, are push buttons, optionally each equipped with a return spring, and provided with actuating rods 62a, 63a which are engaged respectively in two bores 71 and 72 made vertically in the closure plug 68, directly above the two valves 59, 58 of the membrane 56. Of course, these two push buttons 62, 63 could be replaced by any other equivalent means, such as , for example, by two rocker buttons and could also be arranged laterally next to each other relative to the upper part of the iron, without departing from the spirit of the invention.

De préférence, l'ensemble formé par la membrane 56 et les deux clapets 58,59 est réalisé en un matériau élastomère, tel que par exemple un silicone, et constitue en soi un joint d'étanchéité entre le piston 27 de la pompe et le bouchon d'obturation 68.Preferably, the assembly formed by the membrane 56 and the two valves 58, 59 is made of an elastomeric material, such as for example a silicone, and constitutes in itself a seal between the piston 27 of the pump and the blanking plug 68.

Il convient de souligner que de manière avantageuse, le piston 27, la membrane 56 à deux clapets, le bouchon d'obturation 68 et les deux boutons de commande 62,63 constituent un ensemble unitaire, facilitant ainsi notablement le montage de la pompe à l'intérieur du fer.It should be emphasized that advantageously, the piston 27, the membrane 56 with two valves, the closure plug 68 and the two control buttons 62, 63 constitute a unitary assembly, thus significantly facilitating the mounting of the pump to the inside the iron.

Pour utiliser le fer à repasser à vapeur, après remplissage du réservoir d'eau 17, l'utilisateur appuie sur l'un ou l'autre des boutons de vaporisation 62 et de pulvérisation 63 de manière à faire descendre le piston 27 dans la chambre 31, puis en relâchant ce bouton, le piston 27 remonte sous l'effet du ressort 29. Au cours de cette remontée, une dépression est alors créée dans la pompe, ce qui a pour effet de faire plaquer les deux clapets 58 et 59 contre le fond de la coupelle 39, obturant ainsi les deux orifices 44 et 45, et le clapet 35 s'ouvre et l'eau est aspirée dans la chambre 31 par l'entrée 33. La pompe 20 est ainsi amorcée, comme illustré à la figure 2.To use the steam iron, after filling the water tank 17, the user presses one or the other of the spray 62 and spray 63 buttons so as to lower the piston 27 into the chamber 31, then by releasing this button, the piston 27 rises under the effect of the spring 29. During this ascent, a vacuum is then created in the pump, which has the effect of causing the two valves 58 and 59 to be pressed against the bottom of the cup 39, thus closing the two orifices 44 and 45, and the valve 35 opens and the water is drawn into the chamber 31 through the inlet 33. The pump 20 is thus primed, as illustrated in FIG. figure 2.

Lorsque l'utilisateur désire se servir de la fonction supervapeur, il appuie sur le bouton de vaporisation 62 (flèche F sur la figure 3), ce qui a pour effet de maintenir fermé le clapet 59 associé à ce bouton 62, l'orifice correspondant de pulvérisation 45 restant ainsi parfaitement obturé. L'eau présente dans la chambre 31 est alors refoulée, sous l'effet de la descente du piston 27, à travers l'alésage 42 et la pression de l'eau refoulée provoque une déformation de la membrane 56 conduisant à l'ouverture du clapet 58, et donc au dégagement de l'orifice correspondant d'injection 44, voir figure 3. On obtient alors une injection brusque d'eau dans la chambre de vaporisation 14 depuis la pompe 20 à travers l'orifice d'injection 44, le conduit 47 et la tubulure 51. Cette injection provoque l'abondante émission de vapeur souhaitée, à travers les trous 12 de la semelle.When the user wishes to use the supervisor function, he presses the spray button 62 (arrow F in FIG. 3), which has the effect of keeping the valve 59 associated with this button 62 closed, the corresponding orifice spray 45 remaining as well perfectly closed. The water present in the chamber 31 is then discharged, under the effect of the descent of the piston 27, through the bore 42 and the pressure of the discharged water causes a deformation of the membrane 56 leading to the opening of the valve 58, and therefore upon release of the corresponding injection orifice 44, see FIG. 3. A sudden injection of water is then obtained in the vaporization chamber 14 from the pump 20 through the injection orifice 44, the conduit 47 and the pipe 51. This injection causes the abundant emission of steam desired, through the holes 12 of the sole.

La pompe 20, sous l'effet du ressort 29, se réamorce alors dès que l'on relâche le bouton de vaporisation 62.The pump 20, under the effect of the spring 29, then reboots as soon as the spray button 62 is released.

Lorsque l'utilisateur désire se servir maintenant de la fonction pulvérisation, il appuie sur le bouton de pulvérisation 63 (flèche F' sur la figure 4), ce qui a pour effet de maintenir fermé le clapet 58 associé à ce bouton, l'orifice correspondant d'injection 44 restant ainsi parfaitement obturé. Comme précédemment, l'eau présente dans la chambre 31 est refoulée à travers l'alésage 42 et la pression de l'eau refoulée provoque une déformation de la membrane 56 conduisant, dans le cas présent, à l'ouverture du clapet 59 et donc au dégagement de l'orifice correspondant de pulvérisation 45, comme visible à la figure 4. On obtient alors une éjection d'eau froide par le pulvérisateur 25, depuis la pompe 20 à travers l'orifice de pulvérisation 45, le conduit 48 et la tubulure 53.When the user now wishes to use the spraying function, he presses the spray button 63 (arrow F 'in FIG. 4), which has the effect of keeping the valve 58 associated with this button closed, the orifice injection correspondent 44 thus remaining perfectly closed. As before, the water present in the chamber 31 is discharged through the bore 42 and the pressure of the discharged water causes a deformation of the membrane 56 leading, in the present case, to the opening of the valve 59 and therefore when the corresponding spray orifice 45 is released, as visible in FIG. 4. One then obtains an ejection of cold water by the sprayer 25, from the pump 20 through the spray orifice 45, the conduit 48 and the tubing 53.

On notera que la section de l'alésage 42 est plus grande que la section des deux orifices, respectivement d'injection 44 et de pulvérisation 45, et du débouché 33 de façon à empêcher avec certitude tout refoulement d'eau par l'orifice de pulvérisation dû à la pression engendrée par l'évaporation brutale de l'eau dans la chambre de vaporisation lorsque le fer est utilisé dans sa fonction supervapeur.It will be noted that the section of the bore 42 is larger than the section of the two orifices, injection 44 and spray 45 respectively, and the outlet 33 so as to prevent with certainty any backflow of water by the spray orifice due to the pressure generated by the sudden evaporation of water in the vaporization chamber when the iron is used in its super-steam function.

Par ailleurs, en cas de surpression importante dans la chambre de vaporisation 14, il est avantageux d'interposer un clapet anti-retour, désigné en 75 sur la figure 1, entre la sortie de la pompe 20, du côté de l'orifice d'injection 44, et l'entrée de la chambre de vaporisation 14. Ce clapet anti-retour 75 est constitué, par exemple, par une membrane perforée déplaçable sous l'action de la pression régnant dans la chambre de vaporisation 14 et propre à venir fermer la sortie de la tubulure d'injection 51. Bien entendu, ce clapet anti-retour 75 pourrait être constitué par tout autre moyen équivalent, tel que, par exemple, par une simple bille ou encore par une collerette formée dans le bouchon d'obturation 68, à l'aplomb du clapet 58 associé à l'orifice d'injection 44, sans sortir pour cela du cadre de l'invention.Furthermore, in the event of significant overpressure in the vaporization chamber 14, it is advantageous to interpose a non-return valve, designated at 75 in FIG. 1, between the outlet of the pump 20, on the side of the orifice d injection 44, and the inlet of the vaporization chamber 14. This non-return valve 75 is constituted, for example, by a perforated membrane displaceable under the action of the pressure prevailing in the vaporization chamber 14 and suitable for coming close the outlet of the injection pipe 51. Of course, this non-return valve 75 could be constituted by any other equivalent means, such as, for example, by a simple ball or by a flange formed in the plug. obturation 68, perpendicular to the valve 58 associated with the injection orifice 44, without departing from the scope of the invention.

Claims (8)

Fer à repasser à vapeur comprenant une semelle chauffante (11) présentant dans sa face inférieure une série de trous de sortie de vapeur (12) et dans sa face supérieure une chambre de vaporisation (14) en relation avec lesdits trous (12) et communiquant avec un réservoir d'eau (17), et une pompe (20) propre à prélever dans ledit réservoir (17) une dose d'eau et à envoyer cette dose, par l'intermédiaire d'un dispositif de sélection (24), soit dans ladite chambre de vaporisation (14) afin d'obtenir brusquement une abondante émission de vapeur à travers les trous (12) de la semelle, soit vers un pulvérisateur d'eau froide (25) situé dans la partie antérieure du fer, la pompe (20) étant du type à piston (27) se déplaçant dans une chambre d'aspiration (31) qui est ménagée dans le corps (21) de la pompe et qui débouche dans le réservoir (17) via un clapet anti-retour (35),
caractérisé en ce que le dispositif de sélection (24) comporte une membrane déformable (56) présentant une partie inférieure (56a) sensiblement plate pourvue de deux protubérances (58,59) faisant chacune office de clapet et étant maintenue en place de façon étanche dans une coupelle (39) qui est formée dans la partie supérieure du piston (27) de la pompe et dont le fond (40), d'une part, communique avec la chambre d'aspiration (31) par un alésage de refoulement (42) pratiqué dans ledit piston, et d'autre part, présente deux orifices, à savoir un orifice d'injection (44) relié à la chambre de vaporisation (14) et un orifice de pulvérisation (45) relié au pulvérisateur (25), les deux clapets (59,58) de la membrane (56) étant situés respectivement au niveau des deux orifices (45,44) et leur fonctionnement étant assujetti respectivement à deux boutons de commande manuelle, dits respectivement de vaporisation (62) et de pulvérisation (63), qui font saillie de la partie supérieure du fer et dont le bouton de vaporisation (62) est en relation avec le clapet (59) associé à l'orifice de pulvérisation (45), tandis que le bouton de pulvérisation (63) est en relation avec le clapet (58) associé à l'orifice d'injection (44), la membrane (56) passant d'une position de repos, définie lorsque la pompe (20) est amorcée, dans laquelle les deux clapets (58,59) sont fermés et obturent respectivement les deux orifices (44,45), à une position de travail, définie lorsque l'un ou l'autre des deux boutons (62,63) est actionné, dans laquelle le clapet (58;59) associé au bouton actionné (63;62) est maintenu fermé par ledit bouton et obture l'orifice correspondant (45;44), tandis que le clapet (58;59) associé à l'autre bouton s'ouvre par déformation de la membrane (56) provoquée par la pression de l'eau refoulée à travers l'alésage (42) du piston et dégage l'orifice correspondant (44;45) par lequel passe l'eau refoulée.Steam iron comprising a heating soleplate (11) having in its lower face a series of steam outlet holes (12) and in its upper face a vaporization chamber (14) in relation to said holes (12) and communicating with a water reservoir (17), and a pump (20) capable of taking a dose of water from said reservoir (17) and of sending this dose, by means of a selection device (24), either in said vaporization chamber (14) in order to suddenly obtain an abundant emission of vapor through the holes (12) of the soleplate, or to a cold water sprayer (25) located in the front part of the iron, the pump (20) being of the piston type (27) moving in a suction chamber (31) which is formed in the body (21) of the pump and which opens into the tank (17) via a non-return valve (35),
characterized in that the selection device (24) comprises a deformable membrane (56) having a substantially flat lower part (56a) provided with two protrusions (58,59) each acting as a valve and being held in place tightly in a cup (39) which is formed in the upper part of the piston (27) of the pump and the bottom (40) of which, on the one hand, communicates with the suction chamber (31) through a discharge bore (42 ) formed in said piston, and on the other hand, has two orifices, namely an injection orifice (44) connected to the vaporization chamber (14) and a spray orifice (45) connected to the sprayer (25), the two valves (59,58) of the membrane (56) being located respectively at the level of the two orifices (45,44) and their operation being subject respectively to two manual control buttons, called spraying (62) and spraying buttons respectively (63), which protrude from the pa upper rtie of iron and whose spray button (62) is in relation to the valve (59) associated with the spray orifice (45), while the spray button (63) is in relation to the valve (58) associated with the injection orifice (44), the diaphragm (56) passing from a rest position, defined when the pump (20) is primed, in which the two valves (58,59) are closed and close the two orifices respectively 44,45), in a working position, defined when one or the other of the two buttons (62,63) is actuated, in which the valve (58; 59) associated with the actuated button (63; 62) is kept closed by said button and closes the corresponding orifice (45; 44), while the valve (58; 59) associated with the other button opens by deformation of the membrane (56) caused by the pressure of the water pumped through the bore (42) of the piston and releases the corresponding orifice (44; 45) through which the pumped water passes. Fer à repasser à vapeur selon la revendication 1,
caractérisé en ce que le corps (21) de la pompe (20) présente un axe de symétrie vertical (XX') sur lequel est axé l'alésage de refoulement (42) pratiqué dans le piston, et les deux orifices (44,45) pratiqués dans le fond (40) de la coupelle (39) sont situés symétriquement par rapport à l'axe (XX') du corps (21) de la pompe.Steam iron according to claim 1,
characterized in that the body (21) of the pump (20) has a vertical axis of symmetry (XX ') on which the delivery bore (42) formed in the piston is centered, and the two orifices (44,45 ) formed in the bottom (40) of the cup (39) are located symmetrically with respect to the axis (XX ') of the body (21) of the pump. Fer à repasser à vapeur selon la revendication 1 ou 2,
caractérisé en ce que la membrane (56) présente une section droite sensiblement en U dont le fond (40) est plat et comporte les deux clapets (58,59) et dont le bord périphérique d'extrémité (66) est maintenu en appui contre la surface interne de la coupelle (39) au moyen d'une pièce (68) formant un bouchon d'obturation de la coupelle, ledit bouchon étant traversé par les deux boutons, respectivement de vaporisation (62) et de pulvérisation (63).Steam iron according to claim 1 or 2,
characterized in that the membrane (56) has a substantially U-shaped cross section whose bottom (40) is flat and comprises the two valves (58, 59) and whose peripheral end edge (66) is held in abutment the internal surface of the cup (39) by means of a part (68) forming a closure plug for the cup, said plug being traversed by the two buttons, respectively for spraying (62) and spraying (63). Fer à repasser à vapeur selon la revendication 3,
caractérisé en ce que les deux boutons (62,63) sont des boutons-poussoirs engagés respectivement dans deux alésages (71,72) pratiqués dans le bouchon d'obturation (68), à l'aplomb des deux clapets (58,59) de la membrane (56).Steam iron according to claim 3,
characterized in that the two buttons (62,63) are push buttons engaged respectively in two bores (71,72) formed in the closure plug (68), directly above the two valves (58,59) of the membrane (56). Fer à repasser à vapeur selon la revendication 3 ou 4,
caractérisé en ce que la membrane (56) pourvue des deux clapets (58,59) est réalisée en un matériau élastomère et constitue un joint d'étanchéité entre le piston (27) et le bouchon d'obturation (68).Steam iron according to claim 3 or 4,
characterized in that the membrane (56) provided with the two valves (58,59) is made of an elastomeric material and constitutes a seal between the piston (27) and the closure plug (68). Fer à repasser à vapeur selon l'une des revendications 2 à 5,
caractérisé en ce que les deux orifices (44,45) de la coupelle (39) débouchent respectivement dans deux conduits transversaux (47,48) faisant partie intégrante du piston (27) de la pompe et reliés respectivement à la chambre de vaporisation (14) et au pulvérisateur (25) par une tubulure souple (51;53).Steam iron according to one of Claims 2 to 5,
characterized in that the two orifices (44,45) of the cup (39) open respectively into two transverse conduits (47,48) forming an integral part of the piston (27) of the pump and connected respectively to the vaporization chamber (14 ) and to the sprayer (25) by a flexible tube (51; 53). Fer à repasser à vapeur selon l'une des revendications 3 à 6,
caractérisé en ce que le piston (27), la membrane (56) pourvue des deux clapets (58,59), le bouchon d'obturation (68) et les deux boutons (62,63) constituent un ensemble unitaire.Steam iron according to one of Claims 3 to 6,
characterized in that the piston (27), the membrane (56) provided with the two valves (58,59), the closure plug (68) and the two buttons (62,63) constitute a unitary assembly. Fer à repasser à vapeur selon l'une quelconque des revendications précédentes,
caractérisé en ce qu'il comporte de plus un clapet anti-retour (75) interposé entre la sortie de la pompe (20), du côté de l'orifice d'injection (44) pratiqué dans le fond de la coupelle (39), et l'entrée de la chambre de vaporisation (14).Steam iron according to any one of the preceding claims,
characterized in that it further comprises a non-return valve (75) interposed between the outlet of the pump (20), on the side of the injection orifice (44) formed in the bottom of the cup (39), and the inlet of the vaporization chamber (14).
EP95401636A 1994-07-18 1995-07-07 Steam iron Expired - Lifetime EP0694646B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9408865A FR2722518B1 (en) 1994-07-18 1994-07-18 STEAM IRON
FR9408865 1994-07-18

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EP0694646B1 EP0694646B1 (en) 2000-05-24

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DE19616762A1 (en) * 1995-06-14 1996-12-19 Rowenta Werke Gmbh steam iron
FR2735502A1 (en) * 1995-06-14 1996-12-20 Rowenta Werke Gmbh STEAM IRON
DE19645108C1 (en) * 1996-11-01 1998-05-20 Braun Ag Steam iron with a pump device

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FR2771110B1 (en) * 1997-11-19 1999-12-24 Seb Sa IRONING APPARATUS AND METHOD WITH GENERATION OF STEAM
DE19829675A1 (en) * 1998-07-03 2000-01-13 Braun Gmbh Fluid delivery device for an iron
EP0999303B1 (en) * 1998-11-04 2003-05-28 ESSE 85 S.r.l. Professional-type steam iron
CN201155056Y (en) * 2007-12-04 2008-11-26 台湾蜜得兰有限公司 Steam electric iron
ES2360994B1 (en) * 2008-08-22 2012-04-19 Bsh Electrodomésticos España, S.A. STEAM IRON.
GB0901855D0 (en) 2009-02-05 2009-03-11 Strix Ltd Electric steam generation
AU2010201411B2 (en) * 2009-04-15 2015-10-08 Newell Australia Pty Ltd Steam iron

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EP0080634A1 (en) * 1981-11-17 1983-06-08 Moulinex S.A. Steam iron

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EP0080634A1 (en) * 1981-11-17 1983-06-08 Moulinex S.A. Steam iron

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19616762A1 (en) * 1995-06-14 1996-12-19 Rowenta Werke Gmbh steam iron
FR2735502A1 (en) * 1995-06-14 1996-12-20 Rowenta Werke Gmbh STEAM IRON
DE19645108C1 (en) * 1996-11-01 1998-05-20 Braun Ag Steam iron with a pump device

Also Published As

Publication number Publication date
DE69517101T2 (en) 2001-02-01
EP0694646B1 (en) 2000-05-24
FR2722518B1 (en) 1997-06-13
US5526594A (en) 1996-06-18
FR2722518A1 (en) 1996-01-19
DE69517101D1 (en) 2000-06-29

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