EP0184496B1 - Wassereinspritzvorrichtung für Dampfbügeleisen - Google Patents

Wassereinspritzvorrichtung für Dampfbügeleisen Download PDF

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Publication number
EP0184496B1
EP0184496B1 EP85402276A EP85402276A EP0184496B1 EP 0184496 B1 EP0184496 B1 EP 0184496B1 EP 85402276 A EP85402276 A EP 85402276A EP 85402276 A EP85402276 A EP 85402276A EP 0184496 B1 EP0184496 B1 EP 0184496B1
Authority
EP
European Patent Office
Prior art keywords
skirt
lip
plunger
needle
injection
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
Application number
EP85402276A
Other languages
English (en)
French (fr)
Other versions
EP0184496A1 (de
Inventor
Jean-Pierre Hennuy
Daniel Bontoux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEB SA
Original Assignee
SEB SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SEB SA filed Critical SEB SA
Publication of EP0184496A1 publication Critical patent/EP0184496A1/de
Application granted granted Critical
Publication of EP0184496B1 publication Critical patent/EP0184496B1/de
Expired legal-status Critical Current

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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 present invention relates to an injection device for a steam iron.
  • This device more particularly comprises a nozzle mounted in an opening in a wall separating a water tank and a vaporization chamber located in service below the tank.
  • the nozzle comprises an annular lip delimiting a communication orifice between the reservoir and the chamber, and a skirt surrounding the flow passage downstream of the lip relative to the direction of flow.
  • the device further comprises a needle having a lateral recess and movable axially in the orifice between a closed position where the lip surrounds the needle between a free end of the latter and the lateral recess, and an injection position where the lip surrounds the needle between the two axial ends of the lateral recess.
  • Such a device is known from FR-A-2 449 157.
  • the needle passes from one to the other of its extreme positions, it makes the lip work in flexion, which descales it.
  • the smooth region being in service below the axial recess, the needle can be passed into the injection position by simple downward pressure, which is convenient.
  • an injection device comprising a concave conical seat followed on the lower side by a calibrated cylindrical orifice.
  • a valve movable along the axis of the nozzle cooperates with the seat and further carries a needle engaged in the calibrated orifice when the valve is in the closed position.
  • the needle When the valve is instead detached from its seat, the needle is above the orifice and the water flows in principle at a flow rate determined by the calibration of the orifice.
  • the valve returns to the closed position, the needle pushes down the scale deposit that may have formed in the orifice, and prevents the orifice from being completely occupied by scale if the device is not operated for a while.
  • the object of the invention is thus to propose an injection device of the kind stated at the beginning, by which the tartar sheath capable of surrounding the smooth region of the needle is effectively eliminated.
  • the water injection device is characterized in that the skirt is flexible and in that the needle carries axially beyond its smooth region a bulge surrounded by the skirt in the closed position of the needle.
  • the iron comprises a plastic casing 1 surmounting a heating sole 2.
  • a vaporization chamber 3 is arranged between the upper face of the heating sole 2 and a sheet metal wall 6b.
  • the heating sole 2 is traversed by steam distribution openings (not shown) through which the vaporization chamber 3 communicates with the outside, under the sole 2.
  • the housing 1 contains a water tank 4 whose lower wall 6a, made of metal sheet, is located above the upper wall 6b of the chamber 3. Between the walls 6a and 6b is provided a space hollow 6c, having the aim of avoiding the heating of the water and the formation of vapor in the tank 4.
  • the walls 6a and 6b are substantially horizontal in the iron service position in which the soleplate 2 is itself horizontal.
  • An opening 7 passes through the walls 6a and 6b.
  • the nozzle 8 of a water injection device 9 selectively allowing the water contained in the tank 4 to pass drop by drop by gravity into the vaporization chamber 3.
  • the nozzle 8 comprises a tubular body 11 whose annular end directed towards the reservoir 4 has a flange 12 bearing, around the opening 7, under the sheet 6a adjacent to the tank 4.
  • the sheet 6a itself around the opening 7 a cylindrical rim 13 fitted into the body 11.
  • a metal tube 14 is crimped by its end directed towards the chamber 3 on the edge which presents around the opening 7 the sheet 6b adjacent to the chamber 3
  • the tube 14 is fitted without play in the body 11 and extends to an annular wing 16 of the body 11, directed radially inwards.
  • the body 11 is thus centered by the rim 13 and the tube 14, and it is positioned axially between the tube 14 and the sheet 6a.
  • the wing 16 carries a flexible annular lip 17 delimiting by its free edge a circular orifice 18 ( Figure 2).
  • the lip 17 is offset towards the tank 4 relative to the sheet 6b so as to be protected as much as possible from the heat given off by the heating sole 2.
  • the wing 16 On its face facing the vaporization chamber 3, the wing 16 carries the inside the metal tube 14 a skirt 19 having a cylindrical inner wall with a diameter greater than that of the orifice 18. Over most of its axial length, the skirt 19 is surrounded by a free space 20 separating it radially from the tube 14 The space 20 extends to the free end 33 which the skirt 19 presents towards the chamber 3, and thus communicates with the chamber 3 all around the skirt 19.
  • the end 33 of the skirt 19 protrudes from the tube 14 to the vaporization chamber 3.
  • the body 11, the flange 12, the wing 16, the lip 17 and the skirt 19 are produced in a single block of silicone resin.
  • the injection device 9 further comprises a needle 21 constituted by a rod of generally cylindrical shape made of a plastic material resistant to temperature.
  • the rod 21 extends along the axis XX of the nozzle 8 and in particular of the orifice 18, this axis being perpendicular to the plane of the walls 6a and 6b and of the heating sole 2.
  • the needle 21 is fixed to a pusher 22 mounted to slide along the axis XX in a barrel 23.
  • the pusher 22 is connected to a push button 24 projecting from the top of the housing 1.
  • the needle 21 comprises in the vicinity of the pusher 22 a lateral recess 26 constituted by a groove directed parallel to the axis XX.
  • the area of the section of the groove 26 considered in a plane perpendicular to the axis XX decreases in the direction of the heating sole 2. This can be seen in Figures 1 and 4 from the decreasing depth of the groove 26. Between its groove 26 and its free end 27 directed towards the sole 2, the needle 21 has a smooth cylindrical region 28. The diameter of the needle 21 in the region having the groove 26 and in the region 28 is greater than the diameter of the orifice 18 before mounting of the needle 21, and is less than the internal diameter of the skirt 19.
  • the needle 21 constantly tends to return to a closed position ( Figure 1) in which the lip 17 surrounds the smooth cylindrical region 28 of the needle 21. In this position, the needle 21 closes the orifice 18 and consequently prevents the flow of water to the vaporization chamber 3.
  • the button 24 By pressing the button 24 ( Figure 4) the user can move the needle 21 along the axis XX until the lip 17 surrounds the needle 21 in the region having the groove 26. Therefore ( Figures 4 and 5 ) the groove 26 allows, through the orifice 18, a calibrated leak from the reservoir 4 towards the vaporization chamber 3. Taking into account the non-constant section of the groove 26, the flow rate to the vaporization chamber 3 is all the more important that the needle 21 is strongly moved towards the sole 2, which the user can adjust by pressing button 24 more or less.
  • the flexible lip 17 is biased in bending by the axial movements of the needle 21, which descales it.
  • the water which reaches the end 33 falls into the chamber 3 instead of spreading laterally towards the tube 14 and of forming scale in this region.
  • the formation of tartar is therefore reduced.
  • a tubular deposit is formed inside the skirt 19 having in section the shape shown in dotted lines at 29 in FIG. 1 and if no provision is made against a fair deposit 29, the needle 21 is braked or blocked in its movements; in addition, the scale deposit can seal between the skirt 19 and the needle 21 and thus prevent flow even when the needle 21 is in the injection position.
  • the lip 17 in the plane of the sheet 6b, but this would have the disadvantage of subjecting it more to heating by the sole 2.
  • the needle 21 would be too close to the sole 2 in the injection position.
  • the skirt 19 has in the radial direction a thickness allowing it a certain flexibility taking into account the material (silicone resin) in which it is made.
  • the needle 21 has at its free end 27 directed towards the sole 2, an annular bulge 31 having, in section along a plane passing through the axis XX, an isosceles triangle section whose base is parallel to the axis XX.
  • the outside diameter of the bulge 31 is less than the inside diameter of the skirt 19.
  • the bulge 31 has an outside diameter allowing it to cross the lip 17 by simple elastic deformation of the latter, which makes it possible to disassemble the needle 21 from above for cleaning.
  • the bulge 31 When the needle 21 is in the closed position, the bulge 31 is surrounded by the skirt 19 ( Figure 1).
  • the distance between the bulge 31 and the axial end 32 presented by the groove 26 in the direction of the bulge 31 is greater than or equal (equal in the example shown) to the distance between the lip 17 and the annular end 33 that has the skirt 19 on the downstream side, that is to say towards the sole 2.
  • the bulge can be located below the free end of the needle and it can have a profile different from that described and shown.

Landscapes

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

Claims (8)

1. Vorrichtung zur Wassereinspritzung für ein Dampfbügeleisen, die einerseits versehen ist mit einer Düse (8), die in einer Öffnung (7) einer Wandung (6a, 6b), befestigt ist, die einen Behälter (4) für Wasser und eine Verdampfungskammer (3), die im Betrieb unterhalb des Behälters (4) angeordnet ist, voneinander trennt, wobei diese Düse (8) eine ringförmige Lippe (17) enthält, die eine zur Verbindung des Behälters (4) mit der Kammer (3) bestimmte Öffnung (-18) begrenzt, und eine Schürze (19), die den Ablaufweg bezüglich der Strömungsrichtung unterhalb der Lippe (17) umgibt, und wobei die Vorrichtung (9) andererseits versehen ist mit einer Düsennadel (21), die eine seitliche Aussparung (26) aufweist und die in axialer Richtung in der Öffnung (18) bewegbar ist zwischen einer Schließstellung, in welcher die Lippe (17) die Düsennadel (21) in einem glatten Bereich (28) umfaßt, der sich zwischen einem äußeren Ende (27) der Düsennadel (21) und der seitlichen Aussparung (26) befindet, und einer Einspritzstellung, in welcher die Lippe (17) die Düsennadel (21) im Bereich der seitlichen Aussparung (26) umfaßt, dadurch gekennzeichnet, daß die Schürze (19) flexibel ist und die Düsennadel (21) in axialer Richtung jenseits von dem glatten Bereich eine Verdickung (31) aufweist, die in der Schließstellung der Düsennadel von der Schürze (19) umgeben ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Abstand zwischen der Verdickung (31) und dem axialen Ende (32) der seitlichen Aussparung, das zur Verdickung (31) gerichtet ist, größer als oder annähernd gleich dem Abstand zwischen der Lippe (17) und dem strömungsabwärts liegenden, ringförmigen Ende (33) der Schürze (19) ist.
3. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß der Außendurchmesser der Verdickung (31) geringer ist als der Innendurchmesser der Schürze (19).
4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Lippe (17) eine ausreichende Flexibilität aufweist, um während des Ausbauens der Düsennadel (21) ein Durchgehen der Verdickung (31) zu ermöglichen.
5, Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Verdickung (31) am freien Ende der Düsennadel (21) angeordnet ist.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Schürze (19) entlang wenigstens einen Teil ihrer axialen Länge von einem Freiraum (20) umgeben ist.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Freiraum (20) um die Schürze (19) herum mit der Verdampfungskammer (3) in Verbindung steht.
8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Schürze (19) ein freies Ende (33) aufweist, welches zur Verdampfungskammer (3) hin einen ringförmigen Vorsprung bildet, so daß ein seitliches Ausbreiten des das oben genannte Ende (33) erreichenden Wassers vermieden wird.
EP85402276A 1984-11-23 1985-11-22 Wassereinspritzvorrichtung für Dampfbügeleisen Expired EP0184496B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8417875 1984-11-23
FR8417875A FR2573783B1 (fr) 1984-11-23 1984-11-23 Dispositif d'injection d'eau pour fer a repasser a vapeur

Publications (2)

Publication Number Publication Date
EP0184496A1 EP0184496A1 (de) 1986-06-11
EP0184496B1 true EP0184496B1 (de) 1988-05-04

Family

ID=9309881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85402276A Expired EP0184496B1 (de) 1984-11-23 1985-11-22 Wassereinspritzvorrichtung für Dampfbügeleisen

Country Status (7)

Country Link
US (1) US4669207A (de)
EP (1) EP0184496B1 (de)
JP (1) JPS61131800A (de)
CA (1) CA1257533A (de)
DE (1) DE3562495D1 (de)
ES (1) ES290372Y (de)
FR (1) FR2573783B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655667B1 (fr) * 1989-12-13 1992-02-21 Seb Sa Dispositif d'injection d'eau pour fer a repasser a vapeur et fer a repasser a vapeur comportant un tel dispositif.
DE4402683A1 (de) * 1994-01-29 1995-08-03 Braun Ag Wassereinleitvorrichtung für Dampfbügeleisen
US5623775A (en) * 1996-01-16 1997-04-29 Black & Decker Inc. Electric steam iron with improved water tank and skirt assembly
US5829175A (en) * 1996-09-20 1998-11-03 Black & Decker Inc. Steam iron with all temperature steam production
FR2776680B1 (fr) * 1998-03-27 2001-09-28 Moulinex Sa Fer a repasser a vapeur
FR2802220B1 (fr) * 1999-12-14 2002-01-18 Seb Sa Boisseau de fer a repasser a tige ceramique
DE102007062015B4 (de) 2007-12-21 2014-11-06 BSH Bosch und Siemens Hausgeräte GmbH Ventilstange für Bügeleisen

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE374847C (de) * 1921-07-15 1923-05-02 Otto Walker Elektrisches Buegeleisen
FR602293A (fr) * 1925-08-19 1926-03-16 Fer électrique à repasser, avec dispositif d'humidification du tissu
US2746183A (en) * 1951-02-21 1956-05-22 Steam Iron Corp Valve for steam iron
US2887799A (en) * 1956-06-04 1959-05-26 American Electrical Heater Co Steam iron
FR1316012A (fr) * 1962-01-17 1963-01-25 Jura Elektroapp Fabriken L Hen Perfectionnement aux fers à repasser à vapeur
CH448004A (de) * 1965-12-09 1967-12-15 Jura Elektroapparate Fab Tropfventil für Dampfbügeleisen
US3474552A (en) * 1968-06-24 1969-10-28 Gen Electric Steam iron valve structure
US3496661A (en) * 1968-06-24 1970-02-24 Gen Electric Steam iron water valve structure
CH564633A5 (de) * 1972-03-21 1975-07-31 Henzirohs L Jura Elektroappara
US3758969A (en) * 1972-03-27 1973-09-18 Gen Electric Fast start spray iron
US3849916A (en) * 1972-11-10 1974-11-26 Gen Electric Self-cleaning steam iron
US3889406A (en) * 1974-10-07 1975-06-17 Hoover Co Steam iron water valve and manual operating mechanism therefor
PT66021B (de) * 1976-02-05 1978-06-19 Rowenta Werke Gmbh Tropfventil fur dampfbugelautomaten
FR2449157A1 (fr) * 1979-02-13 1980-09-12 Seb Sa Dispositif d'injection d'eau pour fer a repasser a vapeur, et fer a repasser a vapeur s'y rapportant

Also Published As

Publication number Publication date
ES290372U (es) 1986-10-16
JPS61131800A (ja) 1986-06-19
ES290372Y (es) 1987-06-16
FR2573783A1 (fr) 1986-05-30
CA1257533A (en) 1989-07-18
FR2573783B1 (fr) 1987-03-20
DE3562495D1 (en) 1988-06-09
JPS6344399B2 (de) 1988-09-05
EP0184496A1 (de) 1986-06-11
US4669207A (en) 1987-06-02

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