EP0665321B1 - Dispositif d'injection d'eau pour fer à repasser à vapeur - Google Patents

Dispositif d'injection d'eau pour fer à repasser à vapeur Download PDF

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Publication number
EP0665321B1
EP0665321B1 EP94117143A EP94117143A EP0665321B1 EP 0665321 B1 EP0665321 B1 EP 0665321B1 EP 94117143 A EP94117143 A EP 94117143A EP 94117143 A EP94117143 A EP 94117143A EP 0665321 B1 EP0665321 B1 EP 0665321B1
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EP
European Patent Office
Prior art keywords
valve
valve pin
proportioning device
pin
opening
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
Application number
EP94117143A
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German (de)
English (en)
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EP0665321A1 (fr
Inventor
Augustin Auria
Francesc Pons
Pedro Perez
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Braun GmbH
Original Assignee
Braun GmbH
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Filing date
Publication date
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Publication of EP0665321A1 publication Critical patent/EP0665321A1/fr
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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
    • D06F75/10—Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/14—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron
    • D06F75/18—Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water in a reservoir carried by the iron the water being fed slowly, e.g. drop by drop, from the reservoir to a steam generator

Definitions

  • the invention relates to a water inlet device for steam irons with one between a water tank and an evaporation chamber arranged valve consisting of a valve element with one valve opening and one in the valve opening sealed valve pin with a longitudinal groove, which in a first position closes the valve opening and in a second Position is movable in the two ends of the longitudinal groove are open on both sides of the valve opening.
  • a water inlet for steam irons at the beginning mentioned type is known from EP-B-0 014 643.
  • the device consists of the valve element of the first valve from a ring-shaped part made of elastomer material, which on its Inner wall has an essentially radial, flexible lip, which limits the valve opening.
  • the valve pin is only axially movable with respect to the valve element, three different ones Positions are provided in which the valve pin can be locked with the aid of a locking mechanism.
  • the two ends of the longitudinal groove are in an end position on the same side of the valve opening, with the valve pin closes the valve opening.
  • the longitudinal groove on both sides of the valve opening the cross section of the longitudinal groove located within the lip which in the amount of water introduced into the evaporation chamber is defined.
  • This Cross section is due to appropriate training Longitudinal groove in the two positions, the middle and the second End position, of different sizes, so that depending on the selected Position a stronger or a weaker steam generation can be chosen. One way to generate a burst of steam is not scheduled.
  • FR-B-2 337 780 is also a water inlet device known for steam irons, by turning the valve pin the first valve is opened accordingly its open position one or more on the valve pin trained holes in a formed on the valve element engage radial opening so that water doses from the Water container through the holes in an arranged on the valve pin Longitudinal bore from where this goes into the evaporation chamber flows in.
  • the holes formed on the valve pin can with impurities due to their relatively small Diameter - because much larger holes are due the thickness of the valve pin hardly possible - easy to clog to lead. Continuous flow control on the first valve is hardly possible.
  • the invention is therefore based on the object of a water inlet device to create for steam irons that are simply constructed and is inexpensive to manufacture, dealing with a provides continuous regulation of the amount of steam generated, which is easy to regulate and clean, and which is less difficult due to constrictions clogged.
  • the water inlet device according to the invention can be opened easily by turning the valve pin and close, with the valve pin in the respective position is held frictionally, so that additional facilities such as the locking mechanism required in the prior art for locking of the valve pin in the respective position can be dispensed with are.
  • Stepless regulation of the evaporation chamber the amount of water introduced in the unit of time and the corresponding amount amount of steam generated can be with the first valve according to the invention can be easily achieved.
  • the Cross groove in the valve pin with the opening in the valve element created an aperture, the passage cross section by turning the valve pin is changeable. With the help of this aperture the amount of steam generated to meet the different needs Ironing can be easily adjusted.
  • the adjustment range the aperture is determined by the length of the transverse groove.
  • cross groove according to the features of the claim 3 extends over a circumferential angle of up to 180 °.
  • the third is suitable Position above all for the temporary increase in steam generation, without this changing the amount of steam by turning the valve pin. Above all, with With the help of this third position a so-called burst of steam causes where the amount of steam temporarily generated is the greatest possible amount of steam that can be generated in continuous operation exceeds.
  • the features of claim 5 are provided according to the invention.
  • the formation of the second longitudinal groove enables a simple one Valve structure and one of the other valve functions independent dimensioning of the passage cross section in the third Position of the valve pin.
  • This configuration continues Advantage that the third position with increased steam generation every previously set position of the valve pin, i.e. both can be reached from the first as well as from the second position.
  • the valve pin can work without disadvantage the first valve can also be moved in the axial direction, to thereby generate a burst of steam, for example, through the second valve to enable. By turning the valve pin selectable valve positions are not disturbed by this. The Actuation of the additional valve function can therefore be different Extend the positions of the valve pin.
  • the effective passage cross section in the fourth position so large that the amount of water introduced into the evaporation chamber automatic cleaning of the nozzle system.
  • the increased Water supply can be in the fourth position of the valve pin can be easily achieved in that the second longitudinal groove has a section of larger cross section, the two ends only in the fourth position on both sides outside the valve opening lie (claim 7).
  • the compression spring is on the one hand the first valve is always in its closed position during the loosening process brought and held and on the other hand the compression spring itself simply guided on the valve pin.
  • the third and / or fourth position of the valve pin only by special Handles or measures are achieved, that is, with normal Rotary movement of the operating button can be the third and / or fourth position of the valve cannot be reached.
  • the latter positions are only possible, for example, in that the valve additionally in a predetermined position still has to be axially shifted from the normal dosing position (normal steam mode) either in the third or fourth position.
  • Such unlocking means can but also formed by other release or locking devices will.
  • the unlocking means are formed by a recess, by only in a certain position of the valve pin this with its projection upwards from the wall of the iron what can be extracted from the characteristics of the Claim 12 results.
  • a second embodiment according to the features of the claim 13 the gushing inflow of water into solved the steam chamber in that the valve pin of a Sleeve is formed in which a second valve is arranged.
  • the valve pin thus exercises the normal drip function with the valve element, while the second valve instead of the separate one Longitudinal groove in the first embodiment, the gushy or accelerated inflow controls.
  • valve rod inserted into the valve pin from the side where the Longitudinal and transverse grooves are formed.
  • a spring ensures that the second valve is always kept in its flow position becomes.
  • the operating button runs concentric to the push button and when pressing the This push button pushes into the existing in the actuation button Space. This arrangement makes access particularly easy and allows easy handling without a separate Space for the push button must be provided.
  • FIG. 1 and 4 shows a section of a water container 1 and an underlying vaporization chamber 2 of a steam iron.
  • the water tank 1 and the evaporation chamber 2 are separated from each other by a wall 3.
  • the valve element 5 consists of elastomeric material and has the shape of an annular disc with a by a cylindrical collar 6 limited central valve opening 7 and a ring collar 8 adjacent to the disc edge engages in the opening 4.
  • In the valve opening 7 is the lower one End of a cylindrical valve pin 9 arranged by the Collar 6 is tightly covered.
  • valve pin 9 which is in Fig. 1 to 3 of a solid rod is formed, extends through the water tank according to FIG. 1 1 and carries on its upper, protruding from the water tank 1 End a cylindrical button 10 larger Diameter.
  • the valve pin 9 and the button 10 form one piece Component made of a temperature-resistant plastic is made.
  • the upper end of the valve pin 9 is in one stepped bore 11 in the wall 12 of the water tank 1 rotatable stored.
  • FIG. 1 there is between the wall 12 and the button 10 a compression spring 13 which is slightly biased and which the valve pin 9 holds in the axial position shown in FIG. 1, which is formed by a radially projecting on the valve pin 9 Nose 14 is determined on the inside of the Water tank 1 abuts the wall 12.
  • the valve pin 9 at its lower end two at a distance longitudinal grooves 15, 16 arranged from one another and a transverse groove 17 on.
  • the longitudinal groove 15 extends from the lower end of the valve pin 9 to one end of the transverse groove 17 and has in the longitudinal direction seen a constant cross section.
  • the transverse groove 17 opens into the longitudinal groove 15 and extends in the circumferential direction over a circumferential angle of about 160 °, their cross section with increasing distance from the longitudinal groove 15 decreases, as shown in FIG. 5 shows.
  • the transverse groove 17 is located in that shown in Figure 1 Position of the valve pin 9 in an area of the collar 6, the an opening 18 formed by a radial slot through which the transverse groove 17 can be connected to the interior of the water tank 1 is.
  • the width of the opening 18 is the same or slightly larger than the width of the longitudinal groove 15.
  • the longitudinal groove 16 is located on the side opposite the transverse groove 17 the valve pin 9, approximately in the middle between the longitudinal groove 15 and the end of the transverse groove 17.
  • the upper end of the longitudinal groove 16 is outside of FIG. 1 Valve opening 7 at such a distance from the collar 6 that in all positions of the valve pin 9, the longitudinal groove 16 with their maximum passage cross-section to the interior of the water tank 1 remains connected.
  • the lower end of the longitudinal groove 16 is at a distance from the end of the cylindrical surface of the Valve pin 9 is arranged and is in that shown in Figure 1 Position of the valve pin 9 within the valve opening 7. In this position of the valve pin 9 is therefore the longitudinal groove 16 closed to the evaporation chamber 2.
  • the longitudinal groove 16 is made from a lower section 19 and an upper section 20, which are connected by a short stepped transition 21.
  • the section 19 has a smaller width and a smaller one Depth than section 20. However, its cross section is larger than the cross section of the longitudinal groove 15.
  • the cross section of the section 20 is about twice the cross section of the section 19th
  • the different setting options are described below with reference to FIG explained in more detail with the described Water inlet device can be reached.
  • the individual pictures a to f of Figure 3 each show the valve element 5 and the valve pin 9 with its actuating button 10 in the different Positions that are possible.
  • a top view of the with A marked button 10 illustrates the respective Angular position of the valve pin 9.
  • valve pin is in its closed position. This position is reached when in the illustration 2, the valve pin 9 counterclockwise by approximately 100 ° is rotated.
  • the transverse groove 17 is in this position the opening 18 separated and closed by the collar 6.
  • the Opening 18 is closed by the outer surface of the valve pin 9.
  • the lower end of the longitudinal groove 16 is inside of the collar 6 and is accordingly also closed.
  • the lifting gear can be designed so that the depression of the button 10 is only possible in some positions, for example in the area in which one metered with the help of the transverse groove 17, continuous steam generation takes place.
  • the transverse groove 17 and the longitudinal groove 15 are by moving valve pin 9 from the connection area as shown in Figure d the opening 18 moved out and are therefore closed. This has the advantage that the discharge quantity when pressing the button 10 is independent of the respective position of the valve pin 9. Deviating from this, however, there is also the possibility of the transverse groove 17 and the connected end of the longitudinal groove 15 so high in the upper region of the collar 6 to arrange that even after depressing the button 10 the flow path over it open remains.
  • the upper section intended for self-cleaning of the iron 20 of the longitudinal groove 16 can only in the shown in Figure e Position of the actuating button 10 brought into effect will. In this position, in which the valve is initially closed the button 10 can be so deep in the bore 11th push in that the lower end of the upper portion 20 of the Longitudinal groove 16 emerges from the valve opening 7 and thereby a comparatively large amount of water in the evaporation chamber 2 can occur. Due to the correspondingly strong steam development become solid particles through the steam outlet holes of the soleplate washed out.
  • the button 10 is depressed against the force the compression spring 13, which is compressed. During the The button must therefore be held down for the duration of the actuation will. After release, the compression spring 13 moves the button 10 and the valve pin 9 back to its starting position.
  • valve pin 9 In order to determine the longitudinal grooves 15, 16 and the calcification To be able to clean the transverse groove 17 is the valve pin 9 with his Actuation button 10 and the compression spring 13 in the figure f position shown from the water tank 1 of the steam iron removable.
  • the wall 12 faces in the area of the contact surface for the nose 14 a recess 37 through which the nose 14 can pass through.
  • FIG. 4 shows a second exemplary embodiment of a water inlet device shown at avoid repetitions same item numbers for correspondingly identical components were used. For the sake of simplicity, this one Embodiment only on the differences from the Received water inlet device according to Figures 1 to 3.
  • the valve pin 9 consists of one over its entire Length pipe, on which at its lower end the Longitudinal and transverse groove already mentioned for FIGS. 1 to 3 and 5 15, 17 are formed.
  • the valve pin 9 points to the formation a tube has a longitudinal bore 22 in which a valve rod 23 is formed, which is an extension at its lower end 33, on which a valve surface 26 is formed.
  • the valve surface 26 is in the longitudinal bore 22 on one Stage trained valve seat 25 can be brought into contact if that second valve 27 thus formed assumes its closed position.
  • the second valve 27 is in Fig. 4 to the left of the center line 38 in its open and right of centerline 38 in its closed Position is shown.
  • Fig. 4 it can also be seen that the water inlet device presented in one of several possible open positions is because the transverse groove 17 is in the opening 18 and at the same time the longitudinal groove 15 connects from the inside of the Water tank 1 to the one formed below the valve element 5 Evaporation chamber 2 produces.
  • the transverse and longitudinal groove 17, 15 are formed on a section 39 of larger diameter, to which there is a section above a ring step 40 41 of smaller diameter connects. Smaller at section 41 A diameter 24 is provided, which is approximately from the ring step 40 up to a further ring step 42 larger diameter runs.
  • At the ring stage 42 follows upwards an annular groove 43 in which an O-ring 28 is inserted is.
  • the O-ring 28 serves as a seal against one in Water tank 1 trained bore to prevent leakage To prevent water from the water tank 1.
  • the hole is in not shown in the drawing, but points in the area of the nose 14 a recess, the bore for better guidance the valve pin 9 is used.
  • valve pin 9 penetrates the wall 12 and ends with a pot-shaped extension 37 that is open at the top and from a cap 31 by means of between the cap 31 and the extension 37 trained locking connection 32 closed is.
  • the extension 37 forms a ring step 44 which supports the compression spring 13 on the one hand.
  • this compression spring 13 is supported on the wall 12.
  • the compression spring 13 concentrically surrounds the valve pin 9 and is by this led to the side.
  • the compression spring 13 serves that the valve pin 9 with its projection or nose 14 always free of play abuts the wall 12 fixed to the housing.
  • a push button 30 is formed, which is in the cap 31 trained bore 36 protrudes outwards.
  • the push button 30 has a radially widening collar 35 which in non-actuated state of the push button 30 as a stop on the Inner wall of the cap 31 is used.
  • the valve rod 23 free of play, which by the action of Force the spring 29, the push button 30 always in the right of the Center line 38 shown resiliently holds on to the system.
  • the spring 29 is supported in the longitudinal bore 22 on a step 47 , whereas the other end of the spring is on one of the Valve rod 23 attached circlip 34, which acts as a stop serves, supports.
  • the mode of operation of the water inlet device according to FIG. 4 is the following:
  • a permanent and constant release of steam on the soleplate trained steam outlet holes can be achieved by rotating the cap 31 and thus of the valve pin 9 this without axial displacement in its Longitudinal direction are rotated until the transverse groove 17 in the Opening 18 protrudes or engages, causing water over the Transverse groove 17 to the longitudinal groove 15 and from there into the steam chamber 2 drips. Since the transverse groove 17 in the direction of the longitudinal groove 15 5, as clearly shown in FIG. 5, can be expanded by further Twisting the valve pin 9 of the surface portion of the transverse groove 17, which protrudes into the opening 18, are enlarged so that this also increases the passage cross section of the drip valve becomes.
  • valve pin 9 is rotated until the nose 14 an opening formed on the wall 12 (not shown) reached, through which the valve pin 9 is then lifted upwards can be.
  • the bevel 51 serves for better insertion of the valve pin 9 into the valve opening 7 of the elastomer Valve element 5.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Lift Valve (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Claims (17)

  1. Dispositif d'introduction d'eau pour fers à repasser à vapeur comportant une première soupape (52) agencée entre un réservoir d'eau (1) et une chambre de vaporisation (2), consistant en un élément de soupape (5) avec une ouverture de soupape (7) et une tige de soupape (9) étanchée dans l'ouverture de soupape (7) et pourvue d'une rainure longitudinale (14), ladite tige de soupape fermant dans une première position l'ouverture de soupape (7) et étant mobile jusque dans une seconde position dans laquelle les deux extrémités de la rainure longitudinale (15) sont ouvertes de chaque côté de l'ouverture de soupape (7), caractérisé en ce que la tige de soupape (9) est en rotation dans l'ouverture de soupape (7) et parvient grâce à un mouvement de rotation hors de la position de fermeture jusque dans la position d'ouverture et inversement, en ce que l'élément de soupape (5) présente d'une part un collet (6) qui entoure la tige de soupape (9) et qui a d'autre part une ouverture radiale (18), en ce que l'extrémité de la rainure longitudinale (15) proche du collet (6) est pourvue d'une rainure transversale (17) qui s'étend en direction périphérique dans une région de la tige de soupape (9) se trouvant dans l'ouverture de soupape (7), de telle sorte qu'elle s'étend à l'intérieur de la hauteur du collet (6) et en ce que la rainure transversale (17) est reliée plus ou moins avec l'ouverture (18) dans le collet (6), selon la position d'ouverture de la soupape (52).
  2. Dispositif d'introduction selon la revendication 1, caractérisé en ce que la section de la rainure transversale (17) décroít tandis que la distance de la rainure longitudinale (15) croít.
  3. Dispositif d'introduction selon la revendication 2, caractérisé en ce que la rainure transversale (17) s'étend sous un angle périphérique de 180° ou moins.
  4. Dispositif d'introduction selon l'une quelconque des revendications précédentes, caractérisé en ce que la tige de soupape (9) est mobile axialement jusque dans une troisième position dans laquelle un passage (16) supplémentaire est ouvert entre le réservoir d'eau (1) et la chambre de vaporisation (2).
  5. Dispositif d'introduction selon l'une quelconque des revendications précédentes, caractérisé en ce que la tige de soupape (9) a sur sa face détournée de la rainure transversale (17) une seconde rainure longitudinale (16) qui se trouve dans la première et la seconde position de la tige de soupape (9) avec une extrémité à l'intérieur de l'ouverture de soupape (7) de l'élément de soupape (5) et dont les deux extrémités se trouvent sur les deux côtés en dehors de l'ouverture de soupape (7), dans la troisième position susceptible d'être atteinte par un mouvement axial de la tige de soupape (9).
  6. Dispositif d'introduction selon l'une quelconque des revendications précédentes, caractérisé en ce que la tige de soupape (9) est mobile axialement au-delà de la troisième position jusque dans une quatrième position, la section de passage active dans la quatrième position étant choisie de telle dimensions que la quantité d'eau introduite dans la chambre de vaporisation (2) assure un auto-nettoyage du système de buses.
  7. Dispositif d'introduction selon l'une quelconque des revendications précédentes, caractérisé en ce que la seconde rainure longitudinale (16) a un tronçon de section (20) agrandie, dont les deux extrémités se trouvent de chaque côté en dehors de l'ouverture de soupape (7), seulement dans la quatrième position.
  8. Dispositif d'introduction selon l'une quelconque des revendications précédentes, caractérisé en ce que la tige de soupape (9) est en appui sur un ressort (13) qui est susceptible d'être précontraint grâce à un mouvement axial de la tige de soupape (9).
  9. Dispositif d'introduction selon la revendication 8, caractérisé en ce que le ressort (13) est réalisé en tant que ressort de compression qui entoure l'extrémité d'actionnement de la tige de soupape (9) et qui prend appui d'une part sur un bouton d'actionnement (10) relié solidaire avec la tige de soupape (9) et d'autre part sur une surface de boítier (12).
  10. Dispositif d'introduction selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est prévu des moyens qui permettent un mouvement de la tige de soupape (9) jusque dans la troisième et/ou la quatrième position seulement dans une certaine position angulaire en rotation de la tige de soupape (9).
  11. Dispositif d'introduction selon l'une quelconque des revendications précédentes, caractérisé en ce que le bouton d'actionnement (10) relié à la tige de soupape (9) a une saillie (14) qui coopère avec une surface de butée (12) sur le boítier, laquelle limite le mouvement axial du bouton d'actionnement (10) dans la troisième position et qui a, dans une certaine région seulement, un évidement (37) dans lequel la saillie (14) peut pénétrer lors d'un mouvement axial du bouton d'actionnement (10).
  12. Dispositif d'introduction selon l'une quelconque des revendications précédentes, caractérisé en ce que la tige de soupape (9) est susceptible d'être extraite hors du réservoir d'eau (1) dans une position angulaire en rotation.
  13. Dispositif d'introduction selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la tige de soupape (9) présente un alésage longitudinal (22), en ce que l'alésage longitudinal (22) est relié par un passage (24) au réservoir d'eau (1), en ce que dans l'alésage longitudinal (22) est réalisée une barre de soupape (23) s'étendant le long de la tige de soupape (9), et en ce que la barre de soupape (23) forme avec la tige de soupape (9) une seconde soupape (27) réalisée à la hauteur de l'élément de soupape (5).
  14. Dispositif d'introduction selon la revendication 13, caractérisé en ce que la seconde soupape (27) est constituée par un siège de soupape (25) réalisé dans l'alésage longitudinal (22) et par une surface de soupape (26) ménagée dans un évasement (33) dans la barre de soupape (23).
  15. Dispositif d'introduction selon la revendication 14, caractérisé en ce qu'un ressort (29) s'appuie entre des butées (37, 34) sur la tige de soupape (9) et sur la barre de soupape (23), au moyen duquel la soupape (27) est maintenue en position de fermeture.
  16. Dispositif d'introduction selon la revendication 14, caractérisé en ce que dans le bouton d'actionnement (10), un bouton-poussoir (30) est réalisé à déplacement, sur lequel la barre de soupape (23) prend appui, en ce que le bouton-poussoir (30) traverse un perçage (36) réalisé dans le bouton d'actionnement (10) et en ce que le bouton-poussoir (30) présente une collerette annulaire (35) qui vient buter contre la face intérieure du bouton d'actionnement (10) lorsque la soupape (27) est fermée.
  17. Dispositif d'introduction selon la revendication 16, caractérisé en ce que le bouton d'actionnement (10) est formé par un capuchon (31) qui est relié à l'évasement (37) en forme de pot à l'extrémité de la tige de soupape (9), par l'intermédiaire d'une liaison à enclenchement (32).
EP94117143A 1994-01-29 1994-10-29 Dispositif d'injection d'eau pour fer à repasser à vapeur Expired - Lifetime EP0665321B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4402683A DE4402683A1 (de) 1994-01-29 1994-01-29 Wassereinleitvorrichtung für Dampfbügeleisen
DE4402683 1994-01-29

Publications (2)

Publication Number Publication Date
EP0665321A1 EP0665321A1 (fr) 1995-08-02
EP0665321B1 true EP0665321B1 (fr) 1998-07-08

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EP94117143A Expired - Lifetime EP0665321B1 (fr) 1994-01-29 1994-10-29 Dispositif d'injection d'eau pour fer à repasser à vapeur

Country Status (5)

Country Link
US (1) US5531037A (fr)
EP (1) EP0665321B1 (fr)
AT (1) ATE168147T1 (fr)
DE (2) DE4402683A1 (fr)
ES (1) ES2120553T3 (fr)

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Also Published As

Publication number Publication date
ES2120553T3 (es) 1998-11-01
ATE168147T1 (de) 1998-07-15
US5531037A (en) 1996-07-02
DE59406415D1 (de) 1998-08-13
EP0665321A1 (fr) 1995-08-02
DE4402683A1 (de) 1995-08-03

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