EP1114889B1 - Semelle de fer à repasser microbillée - Google Patents
Semelle de fer à repasser microbillée Download PDFInfo
- Publication number
- EP1114889B1 EP1114889B1 EP00420262A EP00420262A EP1114889B1 EP 1114889 B1 EP1114889 B1 EP 1114889B1 EP 00420262 A EP00420262 A EP 00420262A EP 00420262 A EP00420262 A EP 00420262A EP 1114889 B1 EP1114889 B1 EP 1114889B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- smoothing
- soleplate
- metal
- sole
- iron
- 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
Links
Images
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
- D06F75/38—Sole plates
Definitions
- the present invention relates to electric irons, including the sole is made up of a metallic foil possibly raised on its edges and whose underside, the iron being flat in the ironing position, constitutes with the outside of the edges the working face in contact with the ironed linen.
- AT these soles is generally associated with a heating body, most often in aluminum, which includes the heating element of the iron.
- the soles must have a good presentation, good resistance to corrosion, good sliding properties on the laundry, and a hardness of surface that makes them resistant to scratching. This scratch resistance is necessary to maintain the sliding qualities and to resist improper uses, such as passing iron over the zippers.
- the document US2750691 describes an iron having a massive sole, comprising a vaporization chamber, the ironing surface of which has been hammered by large steel balls.
- the fingerprints of the beads meet and facilitate the distribution of steam under the sole. But this technique of hammering cannot be applied to a thin sole under penalty of deformation excessive.
- Patent EP726351 describes a means more specially adapted to soles aluminum, in which the internal and external surfaces are treated by “shot peening "with a jet of abrasive particles entrained in an air jet, in the sole purpose of improving its flatness.
- Patent FR2567929 shows an aluminum surface reinforced by a stainless steel plate. Stainless steel surfaces are not not corrode easily, have a good presentation which can be finished glossy and have acceptable sliding properties, so they are the most often used without surface treatment, other than a possible finish by polishing.
- the object of the invention below is an iron, the work surface of which the metallic sole, preferably made of stainless steel, has a improved coefficient of friction and high hardness to improve the resistance to scratching and slipping on linen.
- the object of the invention is achieved by an iron soleplate iron composed of a metal sheet due to the fact that its work surface presents grains deformed by compression perpendicular to the surface, the number of metal dislocations per unit of volume being at least greater minus 40% to that of the metal at the heart of the sole.
- metallic dislocations is meant structural discontinuities metallic, whether between metallic grains or made up of defects within the grains.
- the core of the sole is intended for a region of the metal remote from surfaces, to a depth greater than 40 micrometers.
- the surface compression of the surface makes it smooth, decreases the coefficient of surface friction on the laundry and clogs the pores that could Preexisting. Compression also increases hardness and creates internal stresses which oppose an attack on the external surface.
- the compressed thickness of the metal measured from the surface, is between 25 and 35 micrometers.
- This thickness varies according to the setting of the method of obtaining the compression. We choose a compromise between high hardness, which requires compression over a great depth but where a correct surface condition is difficult to obtain, and a good surface condition which conditions the sliding.
- the sole is made of stainless steel and has a surface of Vickers hardness at least 25% higher than Vickers hardness measured at the heart of the metal.
- the hardness at the core, or at the core of the metal means for a metallic zone located deep in the metal, beyond the compressed thickness. She is equal to the hardness of the metal before treatment.
- the surface area of stainless steel with Vickers hardness less than 400 at core has a Vickers hardness greater than 500 at the surface, i.e. minimum 25% increase in hardness.
- the roughness of the work surface measured according to the standard DIN4777 is less than 3 micrometers
- the compression of the stainless steel surface is obtained by a "shot peening" process.
- This process involves the projection of essentially non-abrasive particles on the surface, the particles being entrained in an air jet, the air being prior to its use compressed to a pressure of the order of two bars. Hammering of the surface by particles produces compression metallic grains constituting stainless steel. The particle cloud produces a very regular effect and is much easier to control than burnish for example. This process is also more applicable convenient to the edges of the sole than other mechanical processes.
- the treatment of the surface by "shot peening" is carried out in one single operation.
- the particles used are a mixture of glass beads, ceramic beads, and natural organic granular materials.
- This mixture makes it possible to measure the hammering of the surface by producing various impacts producing both the smoothing of the surface and its deep deformation.
- Figure 1 is a view of an iron according to the invention, in partial section by a longitudinal vertical plane.
- Figure 2 is a diagram of the process for obtaining the compressed area in the sole.
- Figure 3 is a micrographic section of the sole according to the invention in near the work surface.
- the iron with steam 1 has a sole 2 made of a stainless steel sheet about 0.5 millimeters thick.
- the sole 2 is raised on its edges 3.
- the lower planar face 4 mainly, and the edges 3, are in contact with ironing linen and constitute the work surface.
- Sole 2 is in intimate contact via its upper face 5 internal to the iron with a heating block 6 fitted with a heating element 7.
- Sole 2 seen in micrographic section by an electronic microscope as illustrated in Figure 3 presents from the work surface 4 a area where the metal grains are deformed and compressed, this on a depth from 30 to 32 micrometers.
- the roughness obtained in this example is of the order of two micrometers. A finer roughness could be achieved by a longer treatment time or weaker compression action.
- the area of sole work is presented, as illustrated in figure 2, after forming edges and vapor holes under a jet of particles 100 transported by an air jet from a nozzle 101.
- the nozzle is at a short distance, about 100 millimeters, of sole 2, which is displaced in its plane longitudinally following the arrows 102 and transversely, so that the jet interests the entire working surface of the sole.
- the jet of 100 particles is flat, obtainable by several nozzles, its width is greater than or equal to the width of the sole and movement takes place only in the longitudinal direction.
- the bottom surface of the sole is made slightly concave to the forming, so that after treatment it is applied correctly against the body heating 6.
- the mixture of particles comprises a majority of glass beads, with additional ceramic beads by example in zirconia or aluminum oxide, and organic ground particles for example, nutshells, almonds, coconuts.
- additional ceramic beads by example in zirconia or aluminum oxide
- organic ground particles for example, nutshells, almonds, coconuts.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Irons (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Catalysts (AREA)
- Powder Metallurgy (AREA)
- Compounds Of Iron (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Claims (7)
- Semelle de fer à repasser (1) composée d'une feuille métallique (2) caractérisée en ce que sa surface de travail (4) présente des grains déformés par compression perpendiculaire à la surface, le nombre de dislocations métalliques par unité de volume dans l'épaisseur comprimée étant supérieur d'au moins 40% à celui du métal au coeur de la semelle, disposé au-delà de l'épaisseur comprimée, à une profondeur supérieure à 40 µm.
- Semelle de fer à repasser (1) selon la revendication 1 caractérisée en ce que l'épaisseur comprimée du métal, mesurée à partir de la surface, est comprise entre 25 et 35 micromètres.
- Semelle de fer à repasser (1) selon la revendication 2 caractérisée en ce que la semelle (2) est en acier inoxydable et présente en surface de travail (4) une dureté Vickers supérieure d'au moins 25% à la dureté Vickers mesurée au coeur du métal.
- Semelle de fer à repasser (1) selon la revendication 3 caractérisée en ce que la rugosité de la surface de travail mesurée suivant la norme DIN4777 est inférieure à 3 micromètres
- Semelle de fer à repasser (1) selon l'une des revendications précédentes caractérisée en ce que la compression de la surface en acier inoxydable est obtenue par un procédé de "shot peening".
- Semelle de fer à repasser (1) selon la revendication 5 caractérisée en ce que le traitement de la surface par "shot peening" s'effectue en une seule opération.
- Semelle de fer à repasser (1) selon la revendication 6 caractérisée en ce que les particules utilisées pour le "shot peening" sont un mélange de billes de verre, de billes céramiques, et de matériaux granuleux organiques naturels.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9916688 | 1999-12-29 | ||
FR9916688A FR2803310B1 (fr) | 1999-12-29 | 1999-12-29 | Semelle de fer a repasser microbillee |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1114889A1 EP1114889A1 (fr) | 2001-07-11 |
EP1114889B1 true EP1114889B1 (fr) | 2004-10-06 |
Family
ID=9553996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00420262A Expired - Lifetime EP1114889B1 (fr) | 1999-12-29 | 2000-12-20 | Semelle de fer à repasser microbillée |
Country Status (9)
Country | Link |
---|---|
US (1) | US6446371B2 (fr) |
EP (1) | EP1114889B1 (fr) |
JP (1) | JP2001204999A (fr) |
AT (1) | ATE278832T1 (fr) |
DE (1) | DE60014569T2 (fr) |
ES (1) | ES2228433T3 (fr) |
FR (1) | FR2803310B1 (fr) |
HK (1) | HK1036490A1 (fr) |
PT (1) | PT1114889E (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2837220B1 (fr) | 2002-03-13 | 2004-08-06 | Rowenta Werke Gmbh | Semelle de fer a surface durcie et revetue |
EP2228485A1 (fr) * | 2009-03-12 | 2010-09-15 | Koninklijke Philips Electronics N.V. | Appareil domestique comportant un agent antimicrobien |
US9551106B2 (en) | 2015-05-20 | 2017-01-24 | Samuel Burke | Steam iron and burn prevention apparatus |
US20210092856A1 (en) * | 2019-09-23 | 2021-03-25 | Apple Inc. | Surface nanograin for improved durability of metal bands |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2750691A (en) * | 1952-07-17 | 1956-06-19 | Westinghouse Electric Corp | Steam iron |
US3333955A (en) * | 1964-09-30 | 1967-08-01 | Int Nickel Co | Aluminum alloy and sole plate for electric iron and the like made therefrom |
IT8407016V0 (it) * | 1984-07-17 | 1984-07-17 | Dmd Srl | Ferro da stiro a vapore con piastra munita di sottile lastra d'acciaio inossidabile forellata e amovibile. |
US4665637A (en) * | 1985-07-26 | 1987-05-19 | Braun Aktiengesellschaft | Sole plate coating for a fabric pressing device |
US4862609A (en) * | 1985-12-24 | 1989-09-05 | Braun Aktiengesellschaft | Ironing sole plate with composite coating of mechanically-resistant compound |
DE19503883A1 (de) * | 1995-02-07 | 1996-08-08 | Braun Ag | Verfahren zum Bearbeiten der Bügelfläche einer Bügeleisensohle |
-
1999
- 1999-12-29 FR FR9916688A patent/FR2803310B1/fr not_active Expired - Fee Related
-
2000
- 2000-12-20 AT AT00420262T patent/ATE278832T1/de not_active IP Right Cessation
- 2000-12-20 ES ES00420262T patent/ES2228433T3/es not_active Expired - Lifetime
- 2000-12-20 EP EP00420262A patent/EP1114889B1/fr not_active Expired - Lifetime
- 2000-12-20 PT PT00420262T patent/PT1114889E/pt unknown
- 2000-12-20 DE DE60014569T patent/DE60014569T2/de not_active Expired - Lifetime
- 2000-12-22 JP JP2000391501A patent/JP2001204999A/ja active Pending
- 2000-12-29 US US09/750,191 patent/US6446371B2/en not_active Expired - Lifetime
-
2001
- 2001-10-24 HK HK01107416A patent/HK1036490A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2001204999A (ja) | 2001-07-31 |
US6446371B2 (en) | 2002-09-10 |
DE60014569T2 (de) | 2005-10-13 |
ATE278832T1 (de) | 2004-10-15 |
DE60014569D1 (de) | 2004-11-11 |
ES2228433T3 (es) | 2005-04-16 |
PT1114889E (pt) | 2005-02-28 |
US20010005951A1 (en) | 2001-07-05 |
HK1036490A1 (en) | 2002-01-04 |
FR2803310B1 (fr) | 2002-05-24 |
EP1114889A1 (fr) | 2001-07-11 |
FR2803310A1 (fr) | 2001-07-06 |
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