EP0377803B1 - Fer à repasser à vapeur électrique - Google Patents

Fer à repasser à vapeur électrique Download PDF

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Publication number
EP0377803B1
EP0377803B1 EP89120546A EP89120546A EP0377803B1 EP 0377803 B1 EP0377803 B1 EP 0377803B1 EP 89120546 A EP89120546 A EP 89120546A EP 89120546 A EP89120546 A EP 89120546A EP 0377803 B1 EP0377803 B1 EP 0377803B1
Authority
EP
European Patent Office
Prior art keywords
steam
iron
soleplate
tip
sole
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
EP89120546A
Other languages
German (de)
English (en)
Other versions
EP0377803A1 (fr
Inventor
Bernd Lindstaedt
Günter Oppermann
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.)
Braun GmbH
Original Assignee
Braun GmbH
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 Braun GmbH filed Critical Braun GmbH
Priority to AT89120546T priority Critical patent/ATE90981T1/de
Publication of EP0377803A1 publication Critical patent/EP0377803A1/fr
Application granted granted Critical
Publication of EP0377803B1 publication Critical patent/EP0377803B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D06F75/20—Arrangements for discharging the steam to the article being ironed

Definitions

  • the invention relates to a steam iron according to the preamble of claim 1.
  • Such a steam iron is known for example from DE-OS 35 45 753.
  • the steam iron described there has a steam chamber in which, controlled by a metering valve, water can be evaporated, the resulting steam then flowing into so-called evaporation chambers, from which it finally reaches the material to be ironed from a large number of steam outlet openings.
  • the steam chamber and the various evaporation chambers are connected to one another by passages which are formed on partition walls which define the division of the entire space filled with steam into a steam chamber and a plurality of evaporation chambers.
  • the partitions are all arranged in the rear area of the soleplate.
  • the iron described in the above-mentioned document has the advantage that if lime-containing water, for example tap water, is used to produce steam, the lime separation is almost exclusively due to the existing partition walls in the area of the steam chamber and hardly in the evaporation chambers he follows.
  • this steam iron has the disadvantage that the steam output, i.e. the amount of steam exiting from different steam outlet openings per unit of time, is quite uneven, with increasing distance from the partition arranged between the steam chamber and the associated evaporation chamber, that is, in the direction of the Tip of the iron, which decreases steam output.
  • an iron is known in which there are three steam outlet openings at the top of the iron soleplate, but which, with an unchanged outlet cross-section, expand more towards the ironing material in the form of so-called recesses than is the case with the other steam outlet openings .
  • the three steam outlet openings mentioned are connected to their own additional steam chamber, into which steam can be introduced by actuating a so-called deflection valve.
  • the steam can either emerge from all outlet openings or only from the three outlet openings arranged at the tip of the soleplate.
  • the steam output at the three outlet openings arranged at the top is significantly weaker than at the other outlet openings. This applies all the more if it is an outlet opening located in the rear area of the soleplate.
  • the steam output at the three steam openings at the tip of the soleplate is comparatively high.
  • the object of the invention is therefore to provide an easy-to-use steam iron which, while maintaining a limescale blockage and inexpensive production, enables a constructive structure, that is to say while maintaining a structure according to the preamble of claim 1, along the entire iron sole up to at the top of which has essentially the same steam output.
  • FIGS. 1 to 2 To avoid repetitions, the same position numbers are used in FIGS. 1 to 2 for correspondingly identical components.
  • the steam iron consists of an iron soleplate 1, preferably made of aluminum, which is provided on its underside shown in Fig. 2 with a sliding sole 2, for example with a sliding layer, not shown in the drawing, for the purpose of lower friction of the Iron soleplate can be coated on an ironing good.
  • the iron soleplate 1 in FIG. 1 essentially consists of a base body 5 which forms the shape of an isosceles triangle, the side surfaces 3 of which are curved. The side surfaces 3 converge at their upper end in FIG. 1 to form an iron sole tip 44.
  • a wall 6 rises from the base body 5 runs around the soleplate 1 and which is self-contained.
  • the end face 7 formed in FIG. 2 at the upper edge of the wall 6 runs parallel to the sliding sole 2.
  • a shoulder 8 adjoins the end face 7 radially inward, which serves to receive, center and seal a cover 9.
  • FIG. 1 the soleplate 1 is shown in plan view with the cover 9 removed.
  • the vaporization chamber 10 enclosed in FIGS. 1 and 2 by the iron soleplate 1, the wall 6 and the lid 9 is used to generate and forward the vapor to the vapor outlet openings 11 formed in this chamber 10 on the base body 5, which are one of the vaporization chamber 10 Establish a steam-conducting connection to the outside of the sliding sole 2.
  • Fig. 2 the drawing is followed by a housing provided with an iron handle, in which contact elements are provided for power supply, electronic switching elements for temperature control of the soleplate and a valve arrangement connected to a water tank for steam generation; however, these parts are not shown in the drawing.
  • the housing is centered and fastened on the soleplate 1 in FIG. 1 via centering bores 12 and via fastening means, which are not shown here.
  • the iron soleplate 1 has two threaded bores 13, via which a thermocouple controlling the temperature of the iron soleplate 1, which is not shown in the drawing, is fastened.
  • the platform 14 surrounding the upper threaded bore 13 in FIG. 1 serves as a flat support for the thermocouple on the heating element 15, in order to ensure a particularly good and rapid heat transfer from the heating element 15 to the thermocouple, so that the on and off behavior of the iron is particularly good is short.
  • a further threaded bore 16 is arranged, which is also surrounded by a second, circular platform 17 and which serves as a support for an overheating protection, not shown in the drawing, which interrupts the power supply to the heating element 15 when For example, the thermocouple is defective and the soleplate 1 would reach an impermissibly high temperature.
  • the threaded bores 18 to 21 serve for the pressure-tight fastening of the cover 9 on the wall 6.
  • the threaded bores 22 to 24 serve for fastening the housing provided with a handle on the soleplate 1.
  • a second wall 33 extends radially inside the wall 6, which begins on one side to the right of the center line 34 at the horizontally extending section of the first wall 6, which extends approximately to the second platform 17 at a distance from the left edge of the Leg 25 of the heating element 15 extends upward in the drawing, there turns, which then runs downward on the radially inner edge of the heating element 15, which bridges the heating element 15 horizontally slightly below the right of the centering hole 12, which then again on the radially outer edge of the Heating element 15 extends upwards in the drawing, which leaves the heating element 15 in the area of the threaded bore 19 and which then intersects the center line 34 via an arc 35 which forms the actual soleplate tip 44.
  • the second wall 33 runs symmetrically to the right wall 33.
  • the steam guide channels 36 formed by the wall 6, the second wall 33, the base body 5 and the cover 9 in FIG. 1 are connected to the evaporation chamber 10 via passages 37, as is also shown in FIG. 2, which are located radially inside the steam guide channels 36 lies and in which the largest part of the heating element 15 is formed.
  • the passages 37 have a rectangular cross section.
  • the passages 37 are formed at the upper end of the second wall 33 so that the lime which is forced to settle in the evaporation chamber 10 due to the lime content of the water cannot precipitate in the steam guide channels 36.
  • the second wall 33 thus forms the function of a limescale but also a water barrier.
  • the steam outlet openings 11 run along the edge of the wall 6 and the second wall 33 within the steam guide channels 36, the steam outlet openings 11, which are adjacent to each other in the longitudinal direction of the soleplate 1, have the same distance from one another.
  • the top three steam outlet openings according to FIG. 1 are provided with a larger cross section or diameter than the rest.
  • the drop-in area 41 shown in dashed lines in FIG. 1 for the amount of water discharged from the water tank via the valve arrangement lies radially inside the heating element 15 in the area of the section 42 connecting the two legs 25, 26.
  • the position of the drop-in area 41 was therefore chosen at this point, since in this area the heating element 15 has the dripping area 41 surrounds from three sides and therefore the highest temperature of the soleplate 1 occurs at this point.
  • Perpendicularly above the dripping-in area 41 at least one channel connected to the valve arrangement projects into the evaporation chamber 10 via an opening formed in the cover 9, the opening, the channel and the valve arrangement not being shown in the drawings.
  • the valve arrangement delivers drop or intermittent water from the storage tank into the evaporation chamber 10, in which the water then evaporates when the soleplate 1 is heated and is fed to the steam outlet openings 11 through the steam guide channels 36 and into the items to be ironed, which is arranged below the sliding sole 2 (not shown) penetrates.
  • the long steam guide channels 36 also ensure that the steam continues to heat up to the steam outlet openings 11.
  • the height h from the bottom 43 to the underside of the passages 37 is approximately 4/5 to 9/10 of the height H which results from the bottom 43 to the underside of the cover 9 (FIG. 2).
  • the steam iron according to the invention works as follows: As soon as water falls on the dripping-in area 41 in FIGS. 1 and 2, this begins to evaporate when the soleplate 1 is heated.
  • the steam flows evenly in all directions due to the symmetrical arrangement of the evaporation and outlet chamber 10, 36 and due to the uniform distribution of the passages 37, based on a corresponding number of associated steam outlet openings 11, whereby it is additionally heated by the soleplate 1 .
  • the lime settles uniformly and exclusively only on the bottom 43 of the evaporation chamber 10 due to the invention.
  • the overheated and decalcified steam flows through the passages 37 into the steam guide channels 36, from where it reaches the material to be ironed via the steam outlet openings 11 under the sliding sole 2.
  • the ironing material smeared by the iron soleplate 1 is equally well moistened at all points by the constant steam flow, in particular also in the region which is smeared by the iron soleplate 1 during ironing below the middle region (center line 34).

Claims (3)

  1. Fer à repasser électrique à vapeur, tenu à la main, dont la semelle (1) chauffée présente une pointe (44) dans sa région avant, et des ouvertures (11) de sortie de vapeur le long de sa face inférieure, comprenant une chambre de vaporisation (10) à laquelle de l'eau peut être acheminée pour la production de vapeur, en une zone d'injection ou d'introduction goutte à goutte (41), et qui est reliée aux ouvertures (11) de sortie de vapeur par des passages (37) et des canaux (36) de guidage de la vapeur, la zone d'injection ou d'introduction goutte à goutte (41) pour l'eau étant disposée dans la région de la pointe (44) de la semelle (1) du fer à repasser tandis que les passages (37) aboutissant aux canaux (36) de guidage de la vapeur sont disposés dans sa région arrière (45),
    caractérisé
    en ce que les sections de sortie des ouvertures (11) de sortie de la vapeur croissent continuellement de la région arrière (45) de la semelle (1) du fer à repasser jusqu'à sa pointe (44).
  2. Fer à repasser à vapeur selon la revendication 1,
    caractérisé
    en ce que les sections de sortie des plus grandes ouvertures (11) de sortie de la vapeur sont au maximum quatre fois supérieures à la section de sortie des plus petites ouvertures (11) de sortie de vapeur.
  3. Fer à repasser à vapeur selon la revendication 1,
    caractérisé
    en ce qu'à la pointe (44) de la semelle (1) du fer à repasser, et symétriquement par rapport à cette pointe, sont disposées trois ouvertures (11) de sortie de vapeur de même section de sortie tandis que toutes les autres ouvertures (11) de sortie de vapeur présentent des sections de sortie plus faibles.
EP89120546A 1989-01-13 1989-11-07 Fer à repasser à vapeur électrique Expired - Lifetime EP0377803B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89120546T ATE90981T1 (de) 1989-01-13 1989-11-07 Elektrisches dampfbuegeleisen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3901024A DE3901024A1 (de) 1989-01-13 1989-01-13 Elektrisches dampfbuegeleisen
DE3901024 1989-01-13

Publications (2)

Publication Number Publication Date
EP0377803A1 EP0377803A1 (fr) 1990-07-18
EP0377803B1 true EP0377803B1 (fr) 1993-06-23

Family

ID=6372121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120546A Expired - Lifetime EP0377803B1 (fr) 1989-01-13 1989-11-07 Fer à repasser à vapeur électrique

Country Status (4)

Country Link
EP (1) EP0377803B1 (fr)
AT (1) ATE90981T1 (fr)
DE (2) DE3901024A1 (fr)
ES (1) ES2042938T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704247B1 (fr) * 1993-04-23 1995-11-10 Moulinex Sa Semelle d'un fer a repasser electrique a vapeur.
EP0676498A3 (fr) * 1994-04-06 1996-04-17 Braun Ag Sortie et distribution de vapeur.
DE4422087A1 (de) * 1994-06-24 1996-01-11 Braun Ag Dampfaustritt und Dampfverteilung
FR2767542B1 (fr) * 1997-08-21 1999-10-08 Seb Sa Semelle de fer a repasser a vapeur comportant des trous de passage de la vapeur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425598A (en) * 1944-05-30 1947-08-12 Philco Corp Steam electric iron
US3722117A (en) * 1972-05-15 1973-03-27 Gen Electric Steam nozzle iron
FR2337780A1 (fr) * 1976-01-12 1977-08-05 Seb Sa Fer a repasser electrique a vapeur
DE7837620U1 (de) * 1977-12-21 1980-06-12 Seb S.A., Selongey, Cote-D'or (Frankreich) Elektrisches Dampfbügeleisen
US4665637A (en) * 1985-07-26 1987-05-19 Braun Aktiengesellschaft Sole plate coating for a fabric pressing device
DE3545753A1 (de) * 1985-12-21 1987-06-25 Braun Ag Elektrisches dampfbuegeleisen
IT8721064V0 (it) * 1987-03-09 1987-03-09 Ronchi Costantino Piastra elettrica per stiratura a vapore.

Also Published As

Publication number Publication date
DE3901024C2 (fr) 1990-10-25
ATE90981T1 (de) 1993-07-15
EP0377803A1 (fr) 1990-07-18
DE3901024A1 (de) 1990-07-26
ES2042938T3 (es) 1993-12-16
DE58904796D1 (de) 1993-07-29

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