EP0844327A1 - Fer à repasser electrique - Google Patents

Fer à repasser electrique Download PDF

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Publication number
EP0844327A1
EP0844327A1 EP97122599A EP97122599A EP0844327A1 EP 0844327 A1 EP0844327 A1 EP 0844327A1 EP 97122599 A EP97122599 A EP 97122599A EP 97122599 A EP97122599 A EP 97122599A EP 0844327 A1 EP0844327 A1 EP 0844327A1
Authority
EP
European Patent Office
Prior art keywords
iron
oxide layer
soleplate
aluminum oxide
aluminum
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.)
Withdrawn
Application number
EP97122599A
Other languages
German (de)
English (en)
Inventor
Hartmut Schönborn
Günther ALSCHWEIG
Hans-Herbert Fuchs
Andrea Hahnewald
Augustin Auria
Joseph Garcia
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6514713&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0844327(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Braun GmbH filed Critical Braun GmbH
Publication of EP0844327A1 publication Critical patent/EP0844327A1/fr
Withdrawn legal-status Critical Current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
    • D06F75/38—Sole plates
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/904—Laminated metal article making

Definitions

  • the invention relates to a method for producing an electric iron cast an iron block made of silicon-containing aluminum with a heater is formed and the surface forming the ironing surface as an aluminum oxide layer becomes.
  • An electric iron of the type mentioned at the outset is already known from EP 217 014 known.
  • This iron has an iron block made of cast aluminum, in which an electric heater is included.
  • the iron sole is as a composite sole integrally formed with the iron block, whereby by means of a Plasma sprayed an aluminum oxide layer sprayed onto the iron block so as to form the soleplate of the iron.
  • the electric iron manufactured by a process in which an iron block made of silicon-containing Aluminum is poured with a heater, and the one that forms the ironing surface Surface is formed as an aluminum oxide layer, a plate-shaped Iron sole made of low-silicon aluminum is attached to the iron block so that both are in good thermal contact, that the aluminum oxide layer on the Outer surface of the soleplate which forms the ironing surface and which is produced Alumina layer is formed by an anodizing process.
  • the outer surface of the rolled sheet before producing the aluminum oxide layer using a Surface processing operation such as grinding or polishing, such treated mechanically that there is a roughness depth of Ra less than or equal to 0.1 mm preferably 0.06 mm, and the surface of the rolled sheet by means of a Anodizing process by chemical oxidation in an aluminum oxide layer with a Thickness of 20 to 80 microns, preferably 35 to 45 microns, is converted and after the formation of the aluminum oxide layer its surface by a
  • the polishing process is treated mechanically in such a way that a roughness depth Ra of less than 0.12 Mymeter, preferably 0.06 Mymeter, arises, and then the so manufactured soleplate attached to the iron block by fasteners is, which is not yet provided with an aluminum oxide layer Iron sole by means of a grinding or polishing process particularly simple and can be inexpensively pretreated because the bare aluminum surface is very soft and can therefore be brought to the required roughness depth in the shortest possible time.
  • an iron in a preferred method of making an iron is a method specified, in which the soleplate of the iron by means of a temperature-resistant Silicone glue is glued to the surface of the iron block, and thus is particularly firmly connected to the iron block. At the same time, the Steam outlet holes opposite the edge of those formed in the iron block Steam channels sealed so that the steam only on the Steam outlet holes emerges. Furthermore, the adhesive layer of the silicone adhesive is only so thin that as much heat as possible from the iron block into the soleplate is initiated. A two-component adhesive is used as the adhesive Alumina is added (approx. 70% share). This creates an intimate Connection and good heat conduction between the iron block and the Soleplate.
  • the electric iron is made with one Silicon-containing cast aluminum block provided, the one has electric heating.
  • a surface is provided which consists of a There is aluminum oxide layer and forms the ironing surface of the iron, one plate-shaped iron soleplate made of low-silicon aluminum on the iron block attached, being in good thermal contact with the latter, the The outer surface of the soleplate is covered with an aluminum oxide layer Forms ironing surface and the aluminum oxide layer is produced by anodizing.
  • a plate-shaped iron soleplate made of a low-silicon aluminum used which is then attached to the iron block so that it is in good condition There is thermal contact with the iron block.
  • the use of the iron soleplate Low-silicon aluminum enables an optically high-quality, flawless and flawless aluminum oxide layer, through which - after attachment to the iron block and completion to the iron - an electrically operated Iron arises, which many placed on it in terms of its ironing surface Requirements such as corrosion resistance, wear resistance, very good hardness, good gliding behavior, no adhesion problems on the ironing material, good Temperature resistance and high insulation effect etc. fulfilled.
  • the Material aluminum is a particularly light sandwich construction from Iron block and soleplate.
  • iron according to the invention not only those mentioned above can be used Achieve benefits, but there is also an ironing surface that is extremely Uniform color coding with a high degree of purity and good surface quality having.
  • An iron soleplate with such a high-quality coating is inexpensive to produce in series and it is also relatively easy to Fasten the iron block.
  • discoloration occurs on the Iron sole surface hardly at temperature effects and prolonged use on, so that the visual impression of the ironing surface is still after a long time is still positive.
  • Iron soleplate from a rolled sheet.
  • Plated are preferred Rolled sheets made of a wrought aluminum alloy, in particular of the types aluminum-manganese-magnesium (AlMg 4.5 Mn) aluminum-magnesium (AlMg 3), aluminum-copper-magnesium (AlCuMg 1), etc.
  • AlMg 4.5 Mn aluminum-manganese-magnesium
  • AlMg 3 aluminum-magnesium
  • AlCuMg 1 aluminum-copper-magnesium
  • Such rolled sheets are practically silicon-free, so that an absolutely homogeneous aluminum oxide layer can be produced.
  • the components refining the aluminum not more than 5%, preferably even less than 3% be.
  • the surface the soleplate of the iron to a roughness of Ra before producing the aluminum oxide layer less than or equal to 0.1 mymeter, preferably greater than 0.06 mymeter.
  • the surface of the Flat iron sole preferably to a roughness depth of less than or equal to 0.1 Mymeter.
  • This high surface quality can be advantageous, for example, by a Achieve grinding or polishing.
  • the thickness of the aluminum oxide layer relatively thin can be selected without this hard layer again in the polishing process must be removed to the bottom in order to achieve the desired roughness depth.
  • the removal of aluminum from the iron soleplate not yet coated with an aluminum oxide layer up to a Roughness less than 0.1 mymeter can be carried out extremely quickly in practice because the still uncoated and therefore still very soft aluminum surface Iron sole can be easily smoothed or machined.
  • the Alumina layer a thickness of 20 to 80 microns, preferably 35 to 45 Mymeter, so that an ironing surface is reached, which also greater loads withstands no significant damage and is extremely protected against corrosion.
  • the smallest thickness (20 mm) of the aluminum oxide layer is sufficient for a pretreatment the surface of the soleplate according to claim 3 also for that then removed the surface to a surface roughness of less than 0.1 mm without any locally polished areas appearing.
  • the edge area at Transition to the outer surface of the soleplate is rounded and the rounding one Radius R greater than or equal to 0.3 mm, preferably 0.5 mm.
  • the surface of the bare Bring iron soleplate to a predetermined roughness depth for example by Grinding or polishing
  • the transitions on edges are sufficiently round
  • the Aluminum oxide layer is achieved according to the invention that the Aluminum oxide layer, however, not in the subsequent polishing process on the endangered zones, such as the edges, are worn down to the bottom.
  • the other hand also leads to less material removal from a very hard aluminum oxide layer at shorter processing times.
  • the transition of the bead is both to the steam outlet holes as to Outer surface of the soleplate rounded.
  • the edge area of the bead from a Radius R greater than or equal to 0.3 mm, preferably 0.5 mm lead to several Steam outlet holes in a bead so that its in the surface of the soleplate mouth a whole group of steam outlet holes, preferably two to five, surrounds.
  • the outer edge of the bead formed in this way leaves a considerably larger one Curvature as well as a rounded edge area. This advantage in turn enables the choice of larger radii at the edge of the bead, so that here too during the The polishing process of the aluminum oxide layer is gentle on this edge area treated, that is not completely removed.
  • a particularly scratch and wear-resistant iron sole results in one preferred embodiment of the electric iron when the Aluminum oxide layer has a Vickers hardness HV 0.5 between 400 to 600.
  • the aluminum oxide layer has a roughness depth Ra of less than or equal to 0.1 mymeter, preferably greater than 0.06 mymeter, are Sliding properties of the iron soleplate are good enough if the adhesion is not too high.
  • the Outer surface of the soleplate with the exception of one or more cutouts consistently on an aluminum oxide layer and at least one of the free spaces electrically connected to the iron block, it becomes an electrical Ground connection of the soleplate with the iron block or the earth guaranteed.
  • This exemption can be done by grinding the non-conductive aluminum oxide layer or by covering individual areas of the Iron soleplate before placing it in an acid bath, i.e. before manufacturing the Aluminum oxide layer can be achieved.
  • the iron block 1 cast from die-cast aluminum is in the vicinity its peripheral edge distributed steam outlet holes 11, which connect the Steam to the opening 19 formed on the iron block 1 up to Create the evaporation chamber (not shown).
  • the ironing surface 6 points upwards, as if the iron is upside down, would be rotated by 180 °.
  • the iron block 1 is made of cast aluminum, which so that the material flows better into the mold or other mold when pouring, Silicon is added.
  • a heat-resistant and good heat-conducting silicone adhesive 7 one made of rolled sheet die-cut iron sole 3 glued on.
  • mechanical fasteners can be provided, such as on the soleplate 3 trained sheet metal tabs, which for the purpose of attaching the Iron sole 3 are bent during assembly so that they Grip iron block 1 in a form-fitting manner, but not in the drawing is shown.
  • the adhesive 7 also serves to seal the Iron sole 3 opposite the iron block 1 in the area of Steam outlet holes 11 with each other.
  • the outer surface 15 of the soleplate 3 is shown in FIG. 1 with a Provided aluminum oxide layer 2, which, with the exception of cutouts 14, preferably is formed on the entire outer surface 15.
  • the exemptions 14 represent after Fastening the soleplate 3 on the iron block 1 a metallic connection to the surface 5 of the iron block 1 ago.
  • Each steam outlet hole 11 opens into openings formed in the iron block 1 19, which may have a common longitudinal axis 20. But it is also conceivable that the opening 19 is formed by an upwardly open channel in which the Open the steam outlet holes 11. This saves individual, with the steam outlet holes 11 steam holes to be connected in the iron block 1, which the Manufacturing simplified during the casting process of the iron block 1 or the mold less expensive.
  • the steam outlet hole 11 closes via a Edge area 13 on a bead 12 surrounding the steam outlet hole 11, which over the Edge area 9 with the radius R in the horizontally extending surface 8 of the Iron sole 3 runs in. Instead of the surrounding bead 12, this can also be done Steam outlet hole 11 directly over the radius R in the surface 8 of the soleplate 3 open, which is indicated in Fig. 1 by the dashed lines 16 is shown.
  • Fig. 2 is a partial longitudinal section on an enlarged scale through the cross section of the Iron sole 3 shown in the area of its outer surface 8, but already after the first grinding or polishing process of the surface 8, but before the anodizing of the surface 8.
  • the surface 6 of the aluminum oxide layer 2 is on the Iron sole 3 shown in cross section, which after the diving process Iron sole 3 according to FIG. 2 by an anodizing bath (not shown) on the surface 8 the soleplate 3 adjusts.
  • the resulting surface roughness Ra is included already smaller than if the surface 8 of the soleplate 3 is not as shown in FIG. 2 was pre-ground or pre-polished.
  • 4 is the surface 6 of the aluminum oxide layer 2 shown in cross section, which after the polishing of the surface of the 3 results in aluminum oxide layer 2.
  • the surface 5 of the iron block 1 is calibrated or pressed, washed alkaline and degreased, the better adhesion of the adhesive 7 Surface roughness 5 for this purpose is greater than 1 mymeter.
  • the Iron sole 3 punched out of low-silicon rolled sheet and in the area of Steam outlet holes 11 depending on the formation of the annular groove or bead, embossed or deep-drawn or otherwise deformed, at the same time the transitions through the radii R and r are formed in their size of about 0.5 to 1 mm.
  • the outer surface 8, which will later serve as the base for the The ironing surface 6 serves, as shown in FIG. 2, to be ground or polished until the after Rauhtiehe Ra given by the invention of not greater than 1 Mymeter results.
  • the soleplate 3 is immersed in an anodizing bath (not shown) that there is an aluminum oxide layer 2 on the outer surface 8 of the iron soleplate 3 results, the thickness of which is preferably 35 to 45 mm and the hardness is preferably 0.5 HV 480.
  • Certain areas on the outer surface 15 should not be Aluminum oxide 2, as is the case for example with the free space 14, coated be so, for example by means of wax, lacquer, silicone or other Covering agent covered. As a result, these locations 14 remain free of aluminum oxide 2. Degreasing or cleaning processes are carried out after or before, depending on the requirements applied to every operation.
  • the finished soleplate 3 including the iron block 1 can now be used with the still necessary parts (not shown) to form an iron be assembled together.
  • the fact that the adhesive 7 is a good heat conductor and in is intimate contact with the soleplate 3, the heat is good on the Transfer soleplate 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
EP97122599A 1994-04-06 1995-03-29 Fer à repasser electrique Withdrawn EP0844327A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4411790A DE4411790A1 (de) 1994-04-06 1994-04-06 Elektrisches Bügeleisen
DE4411790 1994-04-06
EP95915171A EP0754256B1 (fr) 1994-04-06 1995-03-29 Fer a repasser electrique

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP95915171A Division EP0754256B1 (fr) 1994-04-06 1995-03-29 Fer a repasser electrique

Publications (1)

Publication Number Publication Date
EP0844327A1 true EP0844327A1 (fr) 1998-05-27

Family

ID=6514713

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97122599A Withdrawn EP0844327A1 (fr) 1994-04-06 1995-03-29 Fer à repasser electrique
EP95915171A Expired - Lifetime EP0754256B1 (fr) 1994-04-06 1995-03-29 Fer a repasser electrique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP95915171A Expired - Lifetime EP0754256B1 (fr) 1994-04-06 1995-03-29 Fer a repasser electrique

Country Status (9)

Country Link
US (1) US5749165A (fr)
EP (2) EP0844327A1 (fr)
CN (1) CN1077934C (fr)
AT (1) ATE163694T1 (fr)
DE (2) DE4411790A1 (fr)
DK (1) DK0754256T3 (fr)
ES (1) ES2115376T3 (fr)
HK (1) HK1006490A1 (fr)
WO (1) WO1995027819A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785916A1 (fr) * 1998-11-13 2000-05-19 Moulinex Sa Semelle de fer a repasser a vapeur
EP1022374A1 (fr) * 1999-01-22 2000-07-26 Braun GmbH Fer à repasser et procédé pour fabriquer un fer à repasser

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19503883A1 (de) 1995-02-07 1996-08-08 Braun Ag Verfahren zum Bearbeiten der Bügelfläche einer Bügeleisensohle
US5907916A (en) * 1995-03-09 1999-06-01 Braun Aktiengesellschaft Smoothing iron with adhered soleplate
ES2137791B1 (es) * 1995-05-19 2001-04-01 Krainel Sa Suela para plancha.
JP3109102B2 (ja) 1996-09-17 2000-11-13 セイコーエプソン株式会社 表示装置及びそれを用いた電子機器
EP0998604B2 (fr) * 1996-09-24 2008-01-16 Koninklijke Philips Electronics N.V. Fer a repasser et semelle de fer a repasser
US5862571A (en) * 1997-01-10 1999-01-26 Hp Intellectual Corp. Comfort grip handle and process
US5937552A (en) * 1997-01-10 1999-08-17 Hp Intellectual Corp. Iron soleplate with a soleplate bottom cover
CN1122869C (zh) 1997-06-13 2003-10-01 精工爱普生株式会社 显示装置及电子装置
US6462724B1 (en) 1997-07-25 2002-10-08 Seiko Epson Corporation Display device and electronic equipment employing the same
SG91330A1 (en) * 2001-02-17 2002-09-17 Gintic Inst Of Mfg Technology Iron and sole plate for an iron
DE102004062690B4 (de) * 2004-10-04 2008-12-04 Rsg Rostfrei-Schneidwerkzeuge Gmbh Bügelplatte in Form einer Bügeleisensohle oder Bügelmulde
EP2119822A1 (fr) * 2008-05-16 2009-11-18 Koninklijke Philips Electronics N.V. Dispositif comprenant une plaque revêtue de métal et son procédé de fabrication
DE102009039581A1 (de) * 2009-09-01 2011-03-17 Airbus Operations Gmbh Hart oxidiert beschichtete Sitzschiene
FR2998587B1 (fr) * 2012-11-26 2015-05-22 Seb Sa Semelle de fer a repasser presentant des proprietes de glisse et de resistance a l'abrasion ameliorees
CN103966823A (zh) * 2013-02-01 2014-08-06 活力科研有限公司 蒸汽熨斗
JP6767360B2 (ja) * 2014-08-26 2020-10-14 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． ノイズ生成器を備えた蒸気装置
CN106758095B (zh) * 2015-11-19 2020-07-21 大连光成缝纫设备有限公司 全蒸汽熨斗

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2298113A (en) * 1940-12-07 1942-10-06 Westinghouse Electric & Mfg Co Lightweight electric iron
EP0217014A2 (fr) * 1985-07-26 1987-04-08 Braun Aktiengesellschaft Semelle pour fer à repasser
FR2648166A1 (fr) * 1989-06-08 1990-12-14 Seb Sa Semelle de fer a repasser a plaque rapportee et fer a repasser comportant une telle semelle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT46376B (de) * 1908-06-12 1911-02-10 Hoechst Ag Verfahren zur Herstellung penta- und hexahalogenierten Indigofarbstoffen.
US2846793A (en) * 1955-04-21 1958-08-12 Hoover Co Smoothing iron soleplate
IE51461B1 (en) * 1980-08-15 1986-12-24 Redland Technology Ltd Method and apparatus for the production of glass beads
DE3603409A1 (de) * 1985-06-05 1986-12-11 Rowenta-Werke Gmbh, 6050 Offenbach Elektrisch beheiztes dampfbuegeleisen
DE3617034A1 (de) * 1985-06-22 1987-04-16 Winfried Heinzel Verfahren zum beschichten von buegeleisen mit einer antihaftschicht und buegeleisen
ES2023113B3 (es) * 1985-12-24 1992-01-01 Braun Ag Base de plancha.
DE4103794C1 (en) * 1991-02-08 1992-05-27 Braun Ag, 6000 Frankfurt, De Electrically heated steam iron producing uniform steam layer - includes outlets in base for steam distribution and bale like indentations in ironing face of base for receiving steam
US5146700A (en) * 1991-10-31 1992-09-15 Coors Technical Ceramics Company Steam iron with bonded ceramic and aluminum components
FR2700784B1 (fr) * 1993-01-25 1995-03-17 Seb Sa Semelle de fer à repasser multicouches en matériaux colaminés.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2298113A (en) * 1940-12-07 1942-10-06 Westinghouse Electric & Mfg Co Lightweight electric iron
EP0217014A2 (fr) * 1985-07-26 1987-04-08 Braun Aktiengesellschaft Semelle pour fer à repasser
FR2648166A1 (fr) * 1989-06-08 1990-12-14 Seb Sa Semelle de fer a repasser a plaque rapportee et fer a repasser comportant une telle semelle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785916A1 (fr) * 1998-11-13 2000-05-19 Moulinex Sa Semelle de fer a repasser a vapeur
WO2000029661A1 (fr) * 1998-11-13 2000-05-25 Moulinex S.A. Semelle de fer a repasser a vapeur
EP1022374A1 (fr) * 1999-01-22 2000-07-26 Braun GmbH Fer à repasser et procédé pour fabriquer un fer à repasser
US6360461B1 (en) 1999-01-22 2002-03-26 Braun Gmbh Electric pressing iron and method of manufacturing an electric pressing iron

Also Published As

Publication number Publication date
WO1995027819A1 (fr) 1995-10-19
ES2115376T3 (es) 1998-06-16
EP0754256B1 (fr) 1998-03-04
CN1145101A (zh) 1997-03-12
HK1006490A1 (en) 1999-02-26
DK0754256T3 (da) 1998-12-21
EP0754256A1 (fr) 1997-01-22
DE4411790A1 (de) 1995-10-12
ATE163694T1 (de) 1998-03-15
CN1077934C (zh) 2002-01-16
DE59501560D1 (de) 1998-04-09
US5749165A (en) 1998-05-12

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