EP0694646B1 - Steam iron - Google Patents
Steam iron Download PDFInfo
- Publication number
- EP0694646B1 EP0694646B1 EP95401636A EP95401636A EP0694646B1 EP 0694646 B1 EP0694646 B1 EP 0694646B1 EP 95401636 A EP95401636 A EP 95401636A EP 95401636 A EP95401636 A EP 95401636A EP 0694646 B1 EP0694646 B1 EP 0694646B1
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- EP
- European Patent Office
- Prior art keywords
- pump
- piston
- membrane
- valve
- buttons
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- 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 irons steam iron which include a heated soleplate with a series of holes in its underside steam outlet and in its upper side a room vaporization in connection with said holes and communicating with a water tank.
- irons steam iron which also have a clean pump take a dose of water from the tank and send this dose, via a selection either in the vaporization chamber so suddenly obtain an abundant emission of vapor at through the holes in the sole, either towards a sprayer cold water located in the front part of the iron, this pump being of the piston type moving in a suction chamber which is formed in the body of the pump and which opens into the tank via a valve anti-return. See, for example, document EP-A-0 080 634.
- the sudden emission steam or "super-steamer” is useful for carrying out the marking folds in thick fabrics, for example pants folds while spraying water cold is used, for example, to eliminate wrinkles, in particular on excessively dry fabrics.
- the selection device ensuring the choice between supervisor and spray includes a selector which is rotatably mounted in a fixed annular bowl provided at its bottom with two angularly spaced orifices, namely an injection orifice connected to the chamber and a spray orifice connected to the sprayer, and which carries a flexible shutter forming a clean rotary joint to close either of the two orifices according to the angular position of this member selector.
- a rotating joint is still subject in time to wear by friction on the bottom of the bowl which inevitably leads to the appearance of water leaks, affecting the proper functioning iron.
- the realization 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 make an equipped steam iron a selection device - super-steamer or spray - which is simple, economical and highly reliable.
- Document FR-A-2 230 786 further describes an iron iron in which the selection between spraying and supervisor is provided by means of a two-position valve which is linked to the pump actuation button.
- the device for selection includes a deformable membrane with a substantially flat lower part with two protrusions each acting as a valve and being held in place tightly in a cup which is formed in the upper part of the piston of the pump and whose bottom, on the one hand, communicates with the suction chamber through a discharge bore 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, respectively called spray and spray, which protrude from the upper part of the iron and including the spray button is related to the valve associated with the orifice while the spray button is related to the valve associated with the orifice injection, the membrane passing from a rest position, defined when the pump is primed, in which the two valves are closed and seal respectively the two orifices, at a working position, defined when either
- this deformable membrane with double valve the opening of which is selectively subject to pressure pumped water, constitutes a simple organ and unalterable ensuring, according to the choice of the user, selection between the steam and spray functions, and all the more so since the double-flap membrane is integrated in the pump.
- the steam iron 10 shown schematically in Figure 1 includes a heated soleplate 11 presenting, on its underside, a series of steam outlet holes 12 and, in 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, whose body 21 has an axis of vertical symmetry XX '(figures 2, 3 and 4) and which is clean to draw from the reservoir 17 a dose of water and to send this dose, via a device selection 24 which will be described later, either in the vaporization chamber 14 in order to suddenly obtain a abundant emission of steam through holes 12 of the sole 11, either to a cold water sprayer 25, of known structure, located in the anterior region iron.
- a pump designated by the general reference 20, whose body 21 has an axis of vertical symmetry XX '(figures 2, 3 and 4) and which is clean to draw from the reservoir 17 a dose of water and to send this dose, via a device selection 24 which will be described later, either in the vaporization chamber 14 in order to suddenly obtain a abundant emission of steam through holes 12 of the sole 11, either to a cold water sprayer 25, of known structure, located in the anterior region iron.
- the pump 20 is of the piston type 27 moving so watertight, under the action of a spring 29 disposed axially, in a cylindrical suction chamber 31 provided axially in the body 21 of the pump and opening at 33 into the reservoir 17 (FIG. 1) via a non-return valve currently consisting of a ball 35 cooperating with a conical seat 36.
- the piston 27 of the pump 20 extends in its part upper by a cylindrical cup 39 whose bottom 40 communicates with the suction chamber 31 by a cylindrical discharge bore 42 made axially in the piston 27, and has two openings symmetrically with respect to the axis XX 'of the body 21 of the pump, namely an injection orifice 44 connected to the iron vaporization chamber 14 ( Figure 1) and an orifice spray 45 connected to sprayer 25.
- the two orifices 44 and 45 open respectively in two opposite conduits 47 and 48 orthogonal to the axis XX ′ of the body 21 of the pump and forming an integral part piston 27 of the pump; conduit 47, in which opens the injection orifice 44, is connected to the vaporization chamber 14 by flexible tubing injection 51, while the conduit 48, in which opens spray opening 45, is connected to the sprayer 25 by another flexible injection tube 53.
- the selection device 24 illustrated in Figures 2 to 4 and intended to authorize the choice between sudden emission of steam or "supervisor” and spraying has a membrane flexible deformable 56, held in place in the cup 39 of the piston 27 of the pump and having a lower part 56a substantially flat provided with two protrusions 58 and 59 each acting as a valve in being located 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 top of the iron ( Figure 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 associated valve 59 to spray port 45, while the spray button spray 63 is related to the associated valve 58 at the injection port 44, the membrane 56 passing a rest position, defined when the pump 20 is primed, in which the two valves
- the membrane 56 has a substantially U-shaped cross section whose bottom 56a carries the two valves 58 and 59, and the edge of which end device 66 is kept in abutment against the internal surface of the cup 39 by means of a part 68 forming a closure plug for the cup.
- the two spray buttons, respectively 62 and spray 63 are push buttons, optionally each equipped with a return spring, and provided with actuating rods 62a, 63a which are engaged in two bores 71 and 72 respectively vertically in the plug 68, at plumb with the two valves 59, 58 of the membrane 56.
- these two push buttons 62,63 could be replaced by any other equivalent means, such as, by example, by two toggle buttons and could also be arranged laterally next to each other relative to the top of the iron, without depart from the spirit of the invention.
- the assembly formed by the membrane 56 and the two valves 58.59 is made of a material elastomer, such as for example a silicone, and constitutes in itself a seal between the piston 27 of the pump and blanking plug 68.
- the piston 27, the membrane 56 with two valves, the blanking plug 68 and the two control buttons 62.63 constitute a unitary whole, thus facilitating notably the mounting of the pump inside the iron.
- the pump 20, under the effect of the spring 29, is then reboots as soon as you release the spray button 62.
- section of bore 42 is more large as the cross section of the two holes, respectively injection 44 and spray 45, and outlet 33 so as to prevent any backflow of water with certainty by the spray orifice due to the pressure generated by the sudden evaporation of water in the vaporization chamber when iron is used in its function supervisor.
- non-return valve 75 in the event of significant overpressure in the vaporization chamber 14, it is advantageous to interpose a non-return valve, designated at 75 on the Figure 1, between the outlet of pump 20, on the side of the injection orifice 44, and the entrance to the vaporization 14.
- This non-return valve 75 is made up, for example, by a perforated membrane displaceable under the action of the pressure prevailing in the vaporization chamber 14 and clean to come close the exit of the injection manifold 51.
- this non-return valve 75 could be established by any other means equivalent, such as, for example, by a single ball or again by a flange formed in the cap shutter 68, directly above the valve 58 associated with the injection port 44, without leaving the frame for this of the invention.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Irons (AREA)
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 irons steam iron which include a heated soleplate with a series of holes in its underside steam outlet and in its upper side a room vaporization in connection with said holes and communicating with a water tank.
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. Voir, par exemple, le document EP-A-0 080 634.More specifically, it relates to irons steam iron which also have a clean pump take a dose of water from the tank and send this dose, via a selection either in the vaporization chamber so suddenly obtain an abundant emission of vapor at through the holes in the sole, either towards a sprayer cold water located in the front part of the iron, this pump being of the piston type moving in a suction chamber which is formed in the body of the pump and which opens into the tank via a valve anti-return. See, for example, document EP-A-0 080 634.
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. We know that with such irons, the sudden emission steam or "super-steamer" is useful for carrying out the marking folds in thick fabrics, for example pants folds while spraying water cold is used, for example, to eliminate wrinkles, in particular 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 steam irons known from this gender, the selection device ensuring the choice between supervisor and spray includes a selector which is rotatably mounted in a fixed annular bowl provided at its bottom with two angularly spaced orifices, namely an injection orifice connected to the chamber and a spray orifice connected to the sprayer, and which carries a flexible shutter forming a clean rotary joint to close either of the two orifices according to the angular position of this member selector. However, such a rotating joint is still subject in time to wear by friction on the bottom of the bowl which inevitably leads to the appearance of water leaks, affecting the proper functioning iron. In addition, the realization 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 make an equipped steam iron a selection device - super-steamer or spray - which is simple, economical and highly reliable.
Le document FR-A-2 230 786 décrit en outre un fer à repasser dans lequel le sélectionnement entre pulvérisation et supervapeur est prévue par moyens d'un clapet à deux positions qui est lié au bouton d'actionnement de la pompe.Document FR-A-2 230 786 further describes an iron iron in which the selection between spraying and supervisor is provided by means of a two-position valve which is linked to the pump actuation button.
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 device for selection includes a deformable membrane with a substantially flat lower part with two protrusions each acting as a valve and being held in place tightly in a cup which is formed in the upper part of the piston of the pump and whose bottom, on the one hand, communicates with the suction chamber through a discharge bore 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, respectively called spray and spray, which protrude from the upper part of the iron and including the spray button is related to the valve associated with the orifice while the spray button is related to the valve associated with the orifice injection, the membrane passing from a rest position, defined when the pump is primed, in which the two valves are closed and seal respectively the two orifices, at a working position, defined when either of the two buttons is pressed, in which the valve associated with the actuated button is maintained closed by said button and closes the corresponding orifice, while the valve associated with the other button opens by deformation of the membrane caused by pressure of the water discharged through the piston bore and clears the corresponding hole through which the water passes repressed.
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.So this deformable membrane with double valve the opening of which is selectively subject to pressure pumped water, constitutes a simple organ and unalterable ensuring, according to the choice of the user, selection between the steam and spray functions, and all the more so since the double-flap membrane 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).
- Figure 1 is a schematic view in partial section of 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
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
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 best shown in Figures 2, 3 and 4, the
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
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 the figures
1 to 4, the two
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
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 exemplary embodiment, the
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
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
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
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 function
supervisor, he presses the spray button 62
(arrow F in Figure 3), which has the effect of maintaining
closed the
La pompe 20, sous l'effet du ressort 29, se
réamorce alors dès que l'on relâche le bouton de vaporisation
62.The
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 wants to use now
of the spraying function, he presses the button
spray 63 (arrow F 'in FIG. 4), which has
the effect of keeping closed the
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.Note that the section of
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.In addition, in the event of significant overpressure in
the
Claims (8)
- Steam iron comprising a heating sole plate (11) having in its bottom face a series of steam outlet holes (12) and in its top face a vaporisation chamber (14) connected to said holes (12) and communicating with a water reservoir (17), and a pump (20) able to take off, from the reservoir (17), a measure of water and to send this measure, by means of a selection device (24), either into the vaporisation chamber (14) in order to obtain abruptly a copious emission of steam through the holes (12) in the sole plate, or to a cold water sprayer (25) situated in the front part of the iron, the pump (20) being of the type with a piston (27) moving in a suction chamber (31) which is provided in the body (21) of the pump and which opens out into the reservoir (17) via a non-return valve (35),
characterized in that the selection device (24) has a deformable membrane (56) with a substantially flat bottom part (56a) provided with two protuberances (58, 59) each serving as a valve and being held in place sealingly in a dish (39) formed in the top part of the piston (27) of the pump and whose bottom (40), on the one hand, communicates with the suction chamber (31) through a discharge bore (42) formed in the piston, and on the other hand, has two orifices, namely an injection orifice (44) connected to the vaporisation chamber (14) and a spray orifice (45) connected to the sprayer (25), the two valves (59, 58) of the membrane (56) being situated respectively at the two orifices (45, 44) and their functioning being dependent respectively on two manual control buttons, referred to respectively as vaporisation (62) and spray (63) buttons, which project from the top part of the iron and where the vaporisation button (62) is connected with the valve (59) associated with the spray orifice (45), whilst the spray button (63) is connected with the valve (58) associated with the injection orifice (44), the membrane (56) passing from an idle position, defined when the pump (20) is primed, in which the two valves (58, 59) are closed and close off respectively the two orifices (44, ,45), to a working position, defined when one or other of the two buttons (62, 63) is actuated, in which the valve (58; 59) associated with the actuated button (63 ; 62) is held closed by said button and closes off the corresponding orifice (45 ; 44), whilst the valve (58 ; 59) associated with the other button opens through deformation of the membrane (56) caused by the pressure of the water discharged through the bore (42) of the piston and releases the corresponding orifice (44 ; 45) through which the discharged water passes. - Steam iron according to claim 1,
characterized in that the body (21) of the pump (20) has a vertical axis of symmetry (XX') along which is aligned the discharge bore (42) formed in the piston, and the two orifices (44, 45) formed in the bottom (40) of the dish (39) are situated symmetrically with respect to the axis (XX') of the body (21) of the pump. - 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 includes the two valves (58, 59) and whose peripheral end edge (66) is held in abutment against the internal surface of the dish (39) by means of a piece (68) forming a plug closing off the dish, said plug having the tow buttons, respectively vaporisation (62) and spray (63), passing through it. - 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), vertically in line with the two valves (58, 59) of the membrane (56). - Steam iron according to claim 3 or 4,
characterized in that the membrane (56) provided with the two valves (58, 59) is produced from an elastomer material and constitutes a sealing joint between the piston (27) and the closure plug (68). - Steam iron according to one of claims 2 to 5,
characterized in that the two orifices (44, 45) of the dish (39) open out respectively into two transverse conduits (47, 48) forming an integral part of the piston (27) of the pump and connected respectively to the vaporisation chamber (14) and to the sprayer (25) through a flexible duct (51 ; 53). - 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. - 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 same side as the injection orifice (44) formed in the bottom of the dish (39), and the inlet of the vaporisation chamber (14).
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0694646A1 EP0694646A1 (en) | 1996-01-31 |
| EP0694646B1 true EP0694646B1 (en) | 2000-05-24 |
Family
ID=9465484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95401636A Expired - Lifetime EP0694646B1 (en) | 1994-07-18 | 1995-07-07 | Steam iron |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5526594A (en) |
| EP (1) | EP0694646B1 (en) |
| DE (1) | DE69517101T2 (en) |
| FR (1) | FR2722518B1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19616762C2 (en) * | 1995-06-14 | 1997-06-05 | Rowenta Werke Gmbh | steam iron |
| IT1282792B1 (en) * | 1995-06-14 | 1998-03-31 | Rowenta Werke Gmbh | STEAM IRON |
| DE19645108C1 (en) * | 1996-11-01 | 1998-05-20 | Braun Ag | Steam iron with a pump device |
| 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 |
| ES2198832T3 (en) * | 1998-11-04 | 2004-02-01 | Esse 85 S.R.L. | STEAM IRON OF PROFESSIONAL TYPE. |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3881265A (en) * | 1973-05-25 | 1975-05-06 | Scm Corp | Steam-spray iron |
| AT332346B (en) * | 1973-09-03 | 1976-09-27 | Rowenta Werke Gmbh | STEAM AND SPRAY IRON |
| US4170835A (en) * | 1978-10-27 | 1979-10-16 | General Electric Company | Iron with mode valve |
| FR2516561B1 (en) * | 1981-11-17 | 1986-06-06 | Moulinex Sa | STEAM IRON |
| US5136796A (en) * | 1991-01-28 | 1992-08-11 | Black & Decker Inc. | Steam iron spray or surge pump selector valve having an angled valve surface |
-
1994
- 1994-07-18 FR FR9408865A patent/FR2722518B1/en not_active Expired - Fee Related
-
1995
- 1995-07-07 EP EP95401636A patent/EP0694646B1/en not_active Expired - Lifetime
- 1995-07-07 DE DE69517101T patent/DE69517101T2/en not_active Expired - Fee Related
- 1995-07-18 US US08/503,802 patent/US5526594A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| FR2722518A1 (en) | 1996-01-19 |
| FR2722518B1 (en) | 1997-06-13 |
| US5526594A (en) | 1996-06-18 |
| DE69517101T2 (en) | 2001-02-01 |
| DE69517101D1 (en) | 2000-06-29 |
| EP0694646A1 (en) | 1996-01-31 |
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