EP0158355A2 - Sole plate for a flat iron - Google Patents

Sole plate for a flat iron Download PDF

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Publication number
EP0158355A2
EP0158355A2 EP85104412A EP85104412A EP0158355A2 EP 0158355 A2 EP0158355 A2 EP 0158355A2 EP 85104412 A EP85104412 A EP 85104412A EP 85104412 A EP85104412 A EP 85104412A EP 0158355 A2 EP0158355 A2 EP 0158355A2
Authority
EP
European Patent Office
Prior art keywords
sole
reflector
iron
flat
heating elements
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Withdrawn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
EP85104412A
Other languages
German (de)
French (fr)
Other versions
EP0158355A3 (en
Inventor
Robert Sikora
Jerzy Tomaszewski
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.)
Politechnika Lubelska
Original Assignee
Politechnika Lubelska
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
Priority claimed from PL24723084A external-priority patent/PL140482B1/en
Priority claimed from PL24858984A external-priority patent/PL248589A1/en
Application filed by Politechnika Lubelska filed Critical Politechnika Lubelska
Publication of EP0158355A2 publication Critical patent/EP0158355A2/en
Publication of EP0158355A3 publication Critical patent/EP0158355A3/en
Withdrawn legal-status Critical Current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
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/24—Arrangements of the heating means within the iron; Arrangements for distributing, conducting or storing the heat

Definitions

  • the invention relates to the sole of an electric iron, in particular a household or travel iron.
  • the soleplate is generally heated by electrical resistance heaters. These contain a metal resistance element, which is pressed into a channel of the sole in ceramic insulating material. Alternatively, tubular heaters are used, inside of which a metal resistance element is accommodated and which are cast directly in the channel of the foot.
  • the temperature of the ironing surface pressed onto the fabric to be ironed is adjusted with the help of temperature controllers or, more rarely, by means of a thermal switch and occasionally also by means of an electronic controller controlled. It has a significant influence on the usage properties of the iron.
  • irons with such soles the energy yield is relatively low and the control of the temperature of the sole surface is insufficient.
  • the heat flow generated in the sole is dependent on the time of the individual phases of the work cycle of the resistance radiators and the radiators have an almost linear, "stiff" heat characteristic.
  • the heat flow at the ironing surface can only be inadequately adapted to the heat removed from the ironed fabric, the heat being reduced differently due to the use of good automatic temperature controllers.
  • irons with known soles have an insufficient lifespan and operational reliability. This is due to the properties of the materials used for the resistance heating elements and radiators.
  • the invention has for its object to eliminate the disadvantages mentioned and to provide an iron soleplate in which the heat flow at the ironing level can be adapted to the heat flow removed from the ironed fabric, so as to improve the ironing quality and the service life and operational safety of the iron to improve over known irons.
  • the iron sole according to the invention improves the energy yield and the ironing quality, in particular of fabrics, by better adapting the heat flow to the heat flow taken off at the ironing level, which results from the nature of the surface heating.
  • the flat iron sole is provided on the side opposite the surface 1 coming into contact with the ironed fabric with a series of bulges 2 in the form of a cylindrical surface section.
  • Semiconductor heating elements 3 consist of a layer of non-conductive material (technical glass with an SiO 2 content of more than 80% or ceramic) and a thin layer of semiconductor metal oxides (SnO 2 : Sb) applied to this insulating layer with a thickness of 4 ⁇ m, in which the electrical energy is converted into thermal energy and surface heating occurs.
  • the insulating layer of the heating elements 3 lies directly on the surface of the bulges 2.
  • the bulges 2 are preferably arranged on the circumference 4 of the sole.
  • a reflector 5 made of sheet metal which is profiled or flat in accordance with the shape of the thin layer; its reflective surface faces the thin semiconductor metal oxide layer.
  • the reflector 5 is attached to the sole by means of screws screwed into openings 7.
  • the reflector 5 is fastened to the sole by means of bends 17 made of the material of the reflector 5 at the intermediate layer 6.
  • the position of the reflector 5 and the intermediate layer 6 relative to the semiconductor heating element 3 is by means of kerami shear body 8 set.
  • the ceramic body 8 has a socket 9 for using the current electrode and an opening 10 for receiving the conductor supplying the current.
  • An air chamber 11 is present between the reflector 5 and the intermediate layer 6.
  • the surface 12 of the sole is covered with polytetrafluoroethylene, with the exception of the bulges 2 and a point 13 at which the temperature regulator is in direct contact.
  • the semiconductor heating element 3 is fixed against changes in position by projections 14 made of the material of the sole at the two ends of the bulge 2, by flat resistance surfaces 15 on the plane parallel to the ironing surface and by the current electrodes in the socket of the ceramic body 8.
  • Openings 16 serve to turn the iron during assembly of the housing and the handle.
  • the electric current flows in the iron through two parallel branches, in one of which 7 and in the other 8 semiconductor heating elements 3 are connected in series.

Abstract

The sole plate is equipped, on the side opposite the plane of the flat iron, with a series of indentations or elevations (2) in the form of a segment of a cylinder surface or with flat zones, against which semiconductor heating elements (3) bear with their nonconductive surface of industrial glass or ceramic. The surface of the heating elements (3) facing away from the indentations, elevations (2) or flat zones is covered with a thin layer of semiconductor metal oxides. The elevations (2) of the sole plate are preferably arranged on the circumference of the plate. A reflector (5) in the form of sheet metal profiled according to the heating elements or produced from flat sheet metal has its reflecting surface facing the thin layer of semiconductor metal oxide and is arranged at a distance of 0.1 to 9.0 mm from the thin layer. An intermediate layer (6) is provided on the reflector (5). The flat-iron sole plate according to the invention improves the energy efficiency and ironing quality, especially on fabrics, by a better adaptation of the heat flow to the heat consumption. <IMAGE>

Description

Die Erfindung bezieht sich auf die Sohle eines elektrischen Bügeleisens, insbesondere eines Haushalts- oder Reisebügeleisens.The invention relates to the sole of an electric iron, in particular a household or travel iron.

In der Sohle von Bügeleisen aus gut wärmeleitenden Metallen, beispielsweise aus Aluminiumlegierung, entstehen Wärmevorgänge, von denen der Bügelvorgang bei Stoffen, insbesondere Geweben, in starkem Maße abhängig ist. Die Bügeleisen-Sohle wird im allgemeinen durch elektrische Widerstandsheizkörper erwärmt. Diese enthalten ein Metall-Widerstandselement, das in einen Kanal der Sohle in keramischer Isoliermasse eingepreßt ist. Alternativ werden Röhrenheizkörper verwendet, in deren Innerem ein Metallwiderstandselement untergebracht ist und die unmittelbar im Kanal des Fußes vergossen sind. Die Temperatur der an den zu bügelnden Stoff angepreßten Bügelfläche wird mit Hilfe von Temperaturreglern oder, seltener, mittels thermischer Ausschalter und gelegentlich auch mittels elektronischer Regler eingestellt und gesteuert. Sie hat einen wesentlichen Einfluß auf die Gebrauchseigenschaften des Bügeleisens.In the sole of irons made of highly heat-conducting metals, for example made of aluminum alloy, heat processes occur, on which the ironing process for fabrics, in particular fabrics, depends to a large extent. The soleplate is generally heated by electrical resistance heaters. These contain a metal resistance element, which is pressed into a channel of the sole in ceramic insulating material. Alternatively, tubular heaters are used, inside of which a metal resistance element is accommodated and which are cast directly in the channel of the foot. The temperature of the ironing surface pressed onto the fabric to be ironed is adjusted with the help of temperature controllers or, more rarely, by means of a thermal switch and occasionally also by means of an electronic controller controlled. It has a significant influence on the usage properties of the iron.

Bei Bügeleisen mit derartigen Sohlen ist die Energieausbeute verhältnismäßig gering und die Steuerung der Temperatur der Sohlenfläche unzureichend. Außerdem ist der in der Sohle erzeugte Wärmestrom von der Zeit der einzelnen Phasen des Arbeitsspieles der Widerstandsheizkörper abhängig und die Heizkörper haben eine fast lineare, "steife" Wärmecharakteristik. Infolgedessen ist der Wärmestrom an der Bügelfläche nur unzulänglich an die vom gebügelten Stoff abgenommene Wärme anpaßbar, wobei die Wärme infolge Anwendung guter automatischer Temperaturregler unterschiedlich reduziert wird. Darüber hinaus weisen Bügeleisen mit bekannten Sohlen eine unzureichende Lebensdauer und Betriebssicherheit auf. Dies liegt an den Eigenschaftten der für die Widerstandsheizelemente und Heizkörper verwendeten Materialien.In irons with such soles, the energy yield is relatively low and the control of the temperature of the sole surface is insufficient. In addition, the heat flow generated in the sole is dependent on the time of the individual phases of the work cycle of the resistance radiators and the radiators have an almost linear, "stiff" heat characteristic. As a result, the heat flow at the ironing surface can only be inadequately adapted to the heat removed from the ironed fabric, the heat being reduced differently due to the use of good automatic temperature controllers. In addition, irons with known soles have an insufficient lifespan and operational reliability. This is due to the properties of the materials used for the resistance heating elements and radiators.

Der Erfindung liegt die Aufgabe zugrunde, die genannten Nachteile zu beseitigen und eine Bügeleisen-Sohle zu schaffen, bei der der Wärmestrom an der Bügelebene an den vom gebügtelten Stoff abgenommenen Wärmestrom angepaßt werden kann, um so die Bügelqualität zu verbessern und Lebensdauer und Betriebssicherheit des Bügeleisens gegenüber bekannten Bügeleisen zu verbessern.The invention has for its object to eliminate the disadvantages mentioned and to provide an iron soleplate in which the heat flow at the ironing level can be adapted to the heat flow removed from the ironed fabric, so as to improve the ironing quality and the service life and operational safety of the iron to improve over known irons.

Diese Aufgabe wird erfindungsgemäß durch eine Bügeleisen-Sohle der im Patentanspruch 1 beschriebenen Art gelöst.This object is achieved by an iron soleplate of the type described in claim 1.

Bevorzugte Weiterbildungen der erfindungsgemäßen Bügeleisen-Söhle sind Gegenstand der Patentansprüche 2 bis 4.Preferred developments of the iron sole according to the invention are the subject of claims 2 to 4.

Durch die erfindungsgemäße Bügeleisen-Sohle werden die Energieausbeute und die Bügelqualität, insbesondere von Geweben, durch bessere Anpassung des Wärmestromes an den an der Bügelebene abgenommenen Wärmestrom verbessert, was aus dem Wesen der Oberflächenerwärmung resultiert.The iron sole according to the invention improves the energy yield and the ironing quality, in particular of fabrics, by better adapting the heat flow to the heat flow taken off at the ironing level, which results from the nature of the surface heating.

Außerdem bewirken die Konstruktion der Bügeleisen-Sohle und die physikalischen und chemischen Eigenschaften von Halbleiter-Heizelementen, nämlich der dünne Überzug und die Basis, auf die er aufgebracht ist, daß gegenüber Bügeleisen-Sohlen mit bekannten elektrischen Elementen und Widerstandsheizkörpern eine erhöhte Lebensdauer und Betriebssicherheit erreicht wird.In addition, the construction of the iron soleplate and the physical and chemical properties of semiconductor heating elements, namely the thin coating and the base to which it is applied, result in increased service life and operational safety compared to iron soles with known electrical elements and resistance heating elements becomes.

Die Erfindung wird anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

  • Fig. 1 die Draufsicht auf die der Bügelfläche gegenüberliegende Seite einer Bügeleisen-Sohle vor der Montage,
  • Fig. 2 einen Teilschnitt in einer zu den Ausbuchtungen senkrechten Ebene nach der Montage,
  • Fig. 3 den Längsschnitt des keramischen Körpers vor der Montage,
  • Fig. 4 den Querschnitt des keramischen Körpers im Befestigungsbereich für den elektrischen Leiter und
  • Fig. 5 den Querschnitt des keramischen Körpers in dem Bereich, in den die Stromelektrode in die Steckdose eingeführt wird.
The invention is explained in more detail with reference to the embodiment shown in the drawing. Show it:
  • 1 is a top view of the side of an iron soleplate opposite the ironing surface before assembly,
  • 2 shows a partial section in a plane perpendicular to the bulges after assembly,
  • 3 shows the longitudinal section of the ceramic body before assembly,
  • Fig. 4 shows the cross section of the ceramic body in the fastening area for the electrical conductor and
  • Fig. 5 shows the cross section of the ceramic body in the area in which the current electrode is inserted into the socket.

Die flache Bügeleisen-Sohle ist auf der der mit dem gebügelten Stoff in Berührung kommenden Oberfläche 1 gegenüberliegenden Seite mit einer Reihe von Ausbuchtungen 2 in Form eines Zylinderflächenabschnittes versehen. Halbleiter-Heizelemente 3 bestehen aus einer Schicht aus nichtleitendem Material (technisches Glas mit einem SiO2-Gehalt von mehr als 80 % oder Keramik) und einer auf diese Isolierschicht aufgetragenen dünnen Schicht aus Halbleiter-Metalloxiden (SnO2 : Sb) mit einer Dicke von 4 µm, in der die elektrische Energie in Wärmeenergie umgewandelt wird und die Oberflächenerwärmung entsteht. Die Isolierschicht der Heizelemente 3 liegt unmittelbar an der Oberfläche der Ausbuchtungen 2 an.The flat iron sole is provided on the side opposite the surface 1 coming into contact with the ironed fabric with a series of bulges 2 in the form of a cylindrical surface section. Semiconductor heating elements 3 consist of a layer of non-conductive material (technical glass with an SiO 2 content of more than 80% or ceramic) and a thin layer of semiconductor metal oxides (SnO 2 : Sb) applied to this insulating layer with a thickness of 4 µm, in which the electrical energy is converted into thermal energy and surface heating occurs. The insulating layer of the heating elements 3 lies directly on the surface of the bulges 2.

Die Ausbuchtungen 2 sind vorzugsweise am Umfang 4 der Sohle angeordnet.The bulges 2 are preferably arranged on the circumference 4 of the sole.

In einem Abstand von 2,5 mm von der dünnen Halbleiter-Metalloxidschicht der Heizelemente 3 befindet sich ein Reflektor 5 aus entsprechend der Form der dünnen Schicht profiliertem oder flachem Blech; seine reflektierende Oberfläche ist der dünnen HalbleiterMetalloxidschicht zugewandt.At a distance of 2.5 mm from the thin semiconductor metal oxide layer of the heating elements 3 there is a reflector 5 made of sheet metal which is profiled or flat in accordance with the shape of the thin layer; its reflective surface faces the thin semiconductor metal oxide layer.

Am Reflektor 5 befindet sich eine Zwischenlage 6, die an der Sohle mittels in öffnungen 7 eingeschraubter Schrauben befestigt ist. Der Reflektor 5 ist an der Sohle mittels Abbiegungen 17 aus dem Material des Reflektors 5 an der Zwischenlage 6 befestigt. Die Lage des Reflektors 5 und der Zwischenlage 6 gegenüber dem Halbleiter-Heizelement 3 ist mittels keramischer Körper 8 festgelegt. Der keramische Körper 8 weist eine Steckbuchse 9 zum Einsatz der Stromelektrode und eine öffnung 10 zur Aufnahme des den Strom zuführenden Leiters auf. Zwischen Reflektor 5 und Zwischenlage 6-ist eine Luftkammer 11 vorhanden.There is an intermediate layer 6 on the reflector 5, which is attached to the sole by means of screws screwed into openings 7. The reflector 5 is fastened to the sole by means of bends 17 made of the material of the reflector 5 at the intermediate layer 6. The position of the reflector 5 and the intermediate layer 6 relative to the semiconductor heating element 3 is by means of kerami shear body 8 set. The ceramic body 8 has a socket 9 for using the current electrode and an opening 10 for receiving the conductor supplying the current. An air chamber 11 is present between the reflector 5 and the intermediate layer 6.

Die Oberfläche 12 der Sohle ist mit Ausnahme der Ausbuchtungen 2 und einer Stelle 13, an der der Temperaturregler unmittelbar anliegt, mit Polytetrafluoräthylen überzogen.The surface 12 of the sole is covered with polytetrafluoroethylene, with the exception of the bulges 2 and a point 13 at which the temperature regulator is in direct contact.

Das Halbleiter-Heizelement 3 ist gegen Lageänderungen durch Vorsprünge 14 aus dem Material der Sohle an den beiden Enden der Ausbuchtung 2, durch flache Widerstandsflächen 15 an der zur Bügelfläche parallelen Ebene sowie durch die Stromelektroden in der Steckbuchse des keramischen Körpers 8 festgelegt.The semiconductor heating element 3 is fixed against changes in position by projections 14 made of the material of the sole at the two ends of the bulge 2, by flat resistance surfaces 15 on the plane parallel to the ironing surface and by the current electrodes in the socket of the ceramic body 8.

öffnungen 16 dienen zur Verdrehung des Bügeleisens während der Montage des Gehäuses und des Griffes. Der elektrische Strom fließt in dem Bügeleisen durch zwei parallele Zweige, in deren einem 7 und in deren anderem 8 Halbleiter-Heizelemente 3 hintereinandergeschaltet sind.Openings 16 serve to turn the iron during assembly of the housing and the handle. The electric current flows in the iron through two parallel branches, in one of which 7 and in the other 8 semiconductor heating elements 3 are connected in series.

Claims (4)

1. Bügeleisen-Sohle, gekennzeichnet durch - eine Reihe auf der der mit dem zu bügelnden Gewebe in Berührung kommenden Oberfläche (1) gegenüberliegenden Seite der Sohle, vorzugsweise längs deren Umfanges (4), angeordneter Einsenkungen oder Ausbuchtungen (2) in Form eines Zylinderflächenabschnittes oder flacher Gebiete, - durch aus einer Schicht aus Isoliermaterial und einer dünnen Schicht aus Halbleiter-Metalloxiden bestehende Heizelemente (3), deren Isoliermaterialschicht (technisches Glas oder Keramik) direkt an den Einsenkungen, Ausbuchtungen (2) bzw. flachen Gebieten anliegt, - durch einen Reflektor (5), dessen reflektierende Oberfläche der dünnen Halbleitermetalloxidschicht der Heizelemente (3) zugewandt und von dieser in einer Entfernung von 0,1 bis 9,0 mm angeordnet ist und - durch eine am Reflektor (5) angebrachte Zwischenlage (6). 1. Iron sole, characterized by - A row on the side of the sole opposite the surface (1) coming into contact with the fabric to be ironed, preferably along its circumference (4), arranged depressions or bulges (2) in the form of a cylindrical surface section or flat areas, by heating elements (3) consisting of a layer of insulating material and a thin layer of semiconductor metal oxides, the insulating material layer (technical glass or ceramic) lying directly on the depressions, bulges (2) or flat areas, - By a reflector (5), the reflecting surface of the thin semiconductor metal oxide layer facing the heating elements (3) and from this is arranged at a distance of 0.1 to 9.0 mm and - By an intermediate layer (6) attached to the reflector (5). 2. Bügeleisen-Sohle nach Anspruch 1, gekennzeichnet durch einen keramischen Körper (8), der unter Bildung einer Luftkammer (11) zwischen Reflektor (5) und Zwischenlage (6) die Lage von Reflektor und Zwischenlage zum Heizelement (3) festlegt.2. Iron soleplate according to claim 1, characterized by a ceramic body (8) which, with the formation of an air chamber (11) between the reflector (5) and the intermediate layer (6), defines the position of the reflector and the intermediate layer relative to the heating element (3). 3. Bügeleisen-Sohle nach Anspruch 2, dadurch gekennzeichnet, daß im keramischen Isolierkörper (8) eine Steckdose (9) zur Aufnahme einer Stromelektrode und eine Öffnung (10) zur Aufnahme eines Stromleiters vorgesehen sind.3. Iron soleplate according to claim 2, characterized in that in the ceramic insulating body (8) an outlet (9) for receiving a current electrode and an opening (10) for opening acquisition of a conductor are provided. 4. Bügeleisen-Sohle nach Anspruch 3, dadurch gekennzeichnet, daß die Fläche der Sohle mit Ausnahme der Einsenkungen oder Ausbuchtungen (2) oder flachen Gebiete und einer unmittelbaren Kontaktstelle (13) für einen Temperaturregler mit der Sohle mit einem Material mit hohem Wärmewiderstand überzogen ist, und daß das Heizelement (3) gegen Lageänderungen durch Vorsprünge (14) aus dem Sohlenmaterial an beiden Enden der Ausbuchtungen (2), durch flache Widerstandsflächen (15) an der zur Bügelfläche parallelen Ebene sowie die Stromelektroden in der Steckdose (9) des keramischen Körpers (8) gesichert ist.,4. Iron sole according to claim 3, characterized in that the surface of the sole, with the exception of the depressions or bulges (2) or flat areas and a direct contact point (13) for a temperature controller with the sole is coated with a material with high thermal resistance , and that the heating element (3) against changes in position by projections (14) made of the sole material at both ends of the bulges (2), by flat resistance surfaces (15) on the plane parallel to the ironing surface and the current electrodes in the socket (9) of the ceramic Body (8) is secured.,
EP85104412A 1984-04-12 1985-04-11 Sole plate for a flat iron Withdrawn EP0158355A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PL24723084A PL140482B1 (en) 1984-04-12 1984-04-12 Ironing flat of electric iron
PL247230 1984-04-12
PL24858984A PL248589A1 (en) 1984-07-04 1984-07-04 Electric iron ironing plate
PL248589 1984-07-04

Publications (2)

Publication Number Publication Date
EP0158355A2 true EP0158355A2 (en) 1985-10-16
EP0158355A3 EP0158355A3 (en) 1987-08-19

Family

ID=26653001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104412A Withdrawn EP0158355A3 (en) 1984-04-12 1985-04-11 Sole plate for a flat iron

Country Status (2)

Country Link
EP (1) EP0158355A3 (en)
DD (1) DD232323A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8223168B2 (en) 2001-05-09 2012-07-17 Samsung Electronics Co., Ltd. Conversion of a sub-pixel format data

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH260281A (en) * 1946-04-24 1949-03-15 Chaluvia Sa D Ets Electric iron.
US2636972A (en) * 1953-04-28 Sheets-sheet
DD214638A1 (en) * 1983-04-19 1984-10-17 Elektrogeraete Ingbuero Veb ELECTRIC BUCKETS
DD220811A1 (en) * 1984-01-26 1985-04-10 Elektrogeraete Ingbuero Veb ELECTRIC BUCKETS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636972A (en) * 1953-04-28 Sheets-sheet
CH260281A (en) * 1946-04-24 1949-03-15 Chaluvia Sa D Ets Electric iron.
DD214638A1 (en) * 1983-04-19 1984-10-17 Elektrogeraete Ingbuero Veb ELECTRIC BUCKETS
DD220811A1 (en) * 1984-01-26 1985-04-10 Elektrogeraete Ingbuero Veb ELECTRIC BUCKETS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8223168B2 (en) 2001-05-09 2012-07-17 Samsung Electronics Co., Ltd. Conversion of a sub-pixel format data

Also Published As

Publication number Publication date
EP0158355A3 (en) 1987-08-19
DD232323A5 (en) 1986-01-22

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