EP1143061B1 - Iron - Google Patents

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Publication number
EP1143061B1
EP1143061B1 EP01105980A EP01105980A EP1143061B1 EP 1143061 B1 EP1143061 B1 EP 1143061B1 EP 01105980 A EP01105980 A EP 01105980A EP 01105980 A EP01105980 A EP 01105980A EP 1143061 B1 EP1143061 B1 EP 1143061B1
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EP
European Patent Office
Prior art keywords
heat shield
assembly
heat
iron
subassembly
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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
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EP01105980A
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German (de)
French (fr)
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EP1143061A3 (en
EP1143061A2 (en
Inventor
Xavier Cuesta
Miguel Rodriguez
Desideri Falco Sastre
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Braun GmbH
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Braun GmbH
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Publication of EP1143061A2 publication Critical patent/EP1143061A2/en
Publication of EP1143061A3 publication Critical patent/EP1143061A3/en
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Publication of EP1143061B1 publication Critical patent/EP1143061B1/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00Hand irons
    • D06F75/36Casings

Definitions

  • the invention relates to an iron with a plastic housing as the upper assembly and a sole with heating as the lower assembly, wherein between the upper assembly and the lower assembly is provided a metallic heat shield, which corresponds to that of the lower assembly outgoing heat radiation with respect to the upper assembly shields and wherein first fastening means are provided, via which the lower Assembly on the heat shield and second fastening means are provided, over which the upper assembly can be attached to the heat shield.
  • a heat shield made of plastic is known for example from US-A 5,623,775.
  • the heat shield has first attachment means, over which the lower Assembly on the heat shield and second fastening means, over which the upper assembly can be attached to the heat shield, is the heat shield designed such that it performs a dual function, on the one hand the shield of the lower assembly radiating heat to the upper assembly and on the other minimizing heat conduction from the lower assembly to the upper assembly as a result of the connection of both parts over the heat shield.
  • the lower and the upper subassembly is exclusively via the fastening means of the heat shield connected with each other.
  • the first and second attachment means are more integral Part of the heat shield, there are no additional fasteners between in particular the lower and upper module necessary.
  • the first and the second Fasteners are mutually different fastening means, so that the heat transfer path from the first attachment means to the second attachment means is larger.
  • the heat shield is to the lower and possibly to the upper Assembly spaced and between them as substantially horizontal plate-shaped body arranged so that except for the fastening means no further Heat conduction acts directly from the lower assembly to the upper assembly.
  • the heat shield is formed as a sheet metal bent part.
  • a sheet metal part combines the properties of a low height, a low emissivity, a limited thermal conductivity and a certain bending elasticity at otherwise high Strength.
  • the upper assembly can thus be heat protected with a short distance to lower assembly can be arranged.
  • the heat shield has an emissivity on, which is smaller than that of plastic. This is on the one hand by the choice of materials and on the other hand achieved by the surface treatment on the heat shield.
  • the heat shield has an emissivity with ⁇ ⁇ 0.4 preferably ⁇ ⁇ 0.3, more preferably ⁇ ⁇ 0.2 or ⁇ ⁇ 0.1.
  • the modules with the heat shield by Forming processes connected.
  • the heat shield has as the first attachment means Openings with vertical protruding pins on the lower assembly cooperate, so that by forming the pin over the openings a Rivet connection is formed.
  • the heat shield has as a second attachment means integrally molded on the heat shield tabs that are bent up vertically are. These mushroom-shaped tabs are formed by slots in a lower part of the upper Inserted assembly and then twisted. This fastening technique is more likely selectively and therefore allows only a small heat conduction to the upper assembly. Further is this mounting method compared to conventional screw with Thermal insulation protection can be used more economically in mass production.
  • To the Lower part is advantageously a tank bottom part and a housing part attached.
  • Fig. 1 shows an exploded view of an iron 1.
  • the iron has a lower assembly 2 on.
  • the lower assembly 2 is provided with an aluminum die cast body provided, which has a steam chamber.
  • the steam chamber is approximately U-shaped arranged heating resistor surrounded, which is poured in pressure casting.
  • In the Steam chamber is controlled by means of a drip valve, which does not belong to the lower assembly, Water gradually dripped to produce steam in the steam chamber.
  • a drip valve which does not belong to the lower assembly
  • Water gradually dripped to produce steam in the steam chamber.
  • At the Bottom of the die-cast body is a surface-treated aluminum sole attached.
  • the steam chamber is up with a steam chamber lid, aside from the Drip valve opening and steam discharge opening, completed. Belong to the lower assembly also heating connection lines and a thermostat.
  • the heat shield 3 can be fastened.
  • the upper assembly of the iron is attached.
  • the upper assembly 6 consists largely of plastic parts, such as the lower part 4, a Tank bottom part and a housing 5.
  • On the housing 5 is a handle, all Controls of steam iron such as steam shock and temperature control and a water tank included.
  • the water tank is on the one hand by the outside Housing molding and on the other hand formed a tank bottom part, the water tank room the Gescouseverschalung down closes.
  • the tank bottom part and the Housing formwork are joined together by plastic welding.
  • Fig. 2 shows a heat shield made of sheet steel.
  • the heat shield can also be made of another material, in particular other metals such. B. aluminum be made.
  • the heat shield is a sheet metal bent part with cutouts. It is flat or plate-shaped with a flat extension, the extension of the Heater resistor in the lower module 2 corresponds and that of the Steam chamber outgoing heat radiation also largely shields.
  • Relative to Upper assembly corresponds to the areal extent of the heat shield 3 in essentially with large parts of the tank bottom, in particular a shield around the opening for the dropping point in the steam chamber 7 and the opening 8 for the Injection point is provided for the steam pulse.
  • the contour of the heat shield is provided with a 90 ° angled edge 9, the rigidity of the sheet metal bending part elevated.
  • openings 10 are provided, which are used as first attachment means for Attachment to the lower module 2 serve.
  • openings 11th formed, which also serves as the first fastening means for attachment to the lower Serve assembly.
  • the bent sheet metal part is in the area of the front first fastening means 11 so many times angled and extending down to the lower assembly out formed so that an attachment to the lower assembly also at the lower level the lower assembly 2 can be fastened.
  • spacers 12 laterally formed at the edge, which rest on the lower assembly 2 and so In addition, ensure that a uniform distance with air gap between the lower Assembly 2 and the heat shield 3 consists.
  • the outer contour of the heat shield 3 is approximately U-shaped, wherein the front part largely filled with sheet metal and turned away in the rear area to Ironing tip two metal legs are formed. At the ends of these thighs in Neighboring to the first attachment means 10 are second attachment means 13 provided, which serve to secure the upper assembly 6 on the heat shield.
  • the second Befest Trentsmitttel 13 are vertically upwardly bent tabs with complete an approximately mushroom-shaped head 14.
  • the second attachment means 15 are like the second attachment means 13 likewise at 90 ° bent upwards bent portions of the sheet metal bending part or Heat shield 3, which also complete mushroom-shaped.
  • Fig. 3 shows the connection of the heat shield 3 with the lower assembly 2.
  • the lower assembly 2 has a Aluminiumdruckgußteil 16, in which the heating resistor is poured.
  • the die-cast aluminum part 16 is made of an aluminum or steel sole 17 completed at the bottom.
  • the steam chamber lid which is the Steam chamber upwards, except for the water supply points, completes, not shown.
  • the die-cast aluminum body 16 of the lower assembly 2 faces vertically upwards projecting pins 18 which are arranged such that the openings 10 and 11 of the Heat shield 3 can be plugged.
  • a punch tool is pressed onto the pins 18, so that a Fixed rivet connection between the heat shield 3 and the lower assembly. 2 will be produced.
  • the pins 18 are shown riveted.
  • Fig. 4 shows the lower assembly 2, on which the heat shield 3 and the lower part of the fourth the upper assembly 6 are attached.
  • the lower part 4 is made of thermostable plastic and surrounds the heater, the die body 16 circumferentially on the entire edge.
  • the Lower part 4 also serves to heat shield against the tank bottom and the Housing 5.
  • the lower part 4 has slots 19 through which the mushroom-shaped ends 18 of second fastening means 13 and 15 are push-through.
  • the length of the tabs of second attachment means of the heat shield 3 is dimensioned so that the mushroom-shaped ends of the tabs just completely from the slots 19 of the lower part. 4 protrude.
  • Adjacent to the four slot openings 19 are circular disc-shaped Rising ramps formed in the lower part 4, so that at a rotation of the mushroom-shaped ends 14 of the second fastening means 13 and 15 by 90 ° the lower part increasingly pressed against the heat shield. That's it Heat shield 3 only in small areas and more linear on the lower part 4, to keep the heat conduction as low as possible.
  • Immediately on the lower part becomes one plate-shaped tank bottom part mounted.
  • the entire housing 5 is adjacent to Ironing tip bolted to the lower part 4.
  • the lower part 4 has a vertical Receiving opening 21 for a screw connection of the housing 5 with the lower part 4 from above on.
  • FIGS. 1 to 4 has several advantages. For one thing is an assembly of all parts by attaching one above the other possible.
  • the fasteners on the heat shield 3 grant a secure connection without additional Small parts such as screws or heat insulating sleeves are necessary for connection, as the Fasteners already on the heat shield on the lower module and on Lower part 4 of the upper assembly 6 are integrally formed, so that by Forming or deformation is a mass-production fair connection given.
  • the heat shield 3 prevents it in particular above the Heating resistors to heat spots on the overlying plastic parts of the upper Assembly 6 comes because the heat shield 3 not only a low heat radiation but also heat spots equalized over the entire surface of the Protective heat shield.
  • the metallic heat shield 3 complies also relative to the heat radiating lower assembly 2, the function of a Heat reflector. Only those of the constructive design consuming Vietnameseableungsfunktionen must from a thermostable lower part 4 of the upper Module 6 are taken over. Above the lower part 4 in the upper assembly 6 Thus, no further thermostable plastics are required.
  • the tank bottom is with it made of polypropylene, whereby it is very well welded to the housing 5.
  • the heat shield is designed as a sheet metal part is a partial Flexibility given, eliminating the iron by bumping and dropping Damage takes place because the sheet metal connection between first and second fasteners The forces can absorb very well and thus cushion the shocks.
  • mounting with Plastic parts would reduce the brittleness of the plastic faster to a break in the connection area between the heavy bottom Guide assembly and the lighter upper assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Irons (AREA)
  • Thermal Insulation (AREA)
  • Soft Magnetic Materials (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Baking, Grill, Roasting (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The iron has a plastic housing as its upper unit (6) and a sole plate with heating as its lower unit (2) with a metal heat protection shield (3) between the units that screens heat radiation from the lower unit with respect to the upper unit. The shield has a first attachment arrangement via which the lower unit can be attached to the shield and a second attachment arrangement via which the upper unit can be attached to the shield.

Description

Die Erfindung betrifft ein Bügeleisen mit einem Kunststoffgehäuse als obere Baugruppe und einer Sohle mit Heizung als untere Baugruppe, wobei zwischen der oberen Baugruppe und der unteren Baugruppe ein metallischer Wärmeschutzschild vorgesehen ist, der die von der unteren Baugruppe ausgehende Wärmestrahlung gegenüber der oberen Baugruppe abschirmt und wobei erste Befestigungsmittel vorgesehen sind, über die die untere Baugruppe an dem Wärmeschutzschild und zweite Befestigungsmittel vorgesehen sind, über die die obere Baugruppe an dem Wärmeschutzschild befestigbar sind.The invention relates to an iron with a plastic housing as the upper assembly and a sole with heating as the lower assembly, wherein between the upper assembly and the lower assembly is provided a metallic heat shield, which corresponds to that of the lower assembly outgoing heat radiation with respect to the upper assembly shields and wherein first fastening means are provided, via which the lower Assembly on the heat shield and second fastening means are provided, over which the upper assembly can be attached to the heat shield.

Ein Bügeleisen der eingangs genannten Art ist aus der US-A 5,944,943 bekannt.An iron of the type mentioned is known from US-A 5,944,943.

Es sind bereits Bügeleisen mit Wärmeschutzschildern bekannt. Wärmeschutzschilder überdecken in der Regel teilweise oder ganzflächig die wärmeabstrahlende untere Baugruppe, um die darüberliegenden Kunststoffteile des Bügeleisens vor zu starker Wärmestrahlung zu schützen. Die unabgeschirmte Wärmestrahlung der unteren Baugruppe würde die darüberliegenden Kunststoffteile des Gehäuses stark beanspruchen. So ist ein Formverzug der Kunststoffteile oder eine schnellere Alterung des Kunststoffs durch die Wärmeeinflüsse möglich. Manche Bügeleisenhersteller haben versucht dieses Problem dadurch in den Griff zu bekommen, indem besonders wärmestabile Kunststoffe für die obere Baugruppe bzw. die unmittelbar an die untere Baugruppe angrenzenden Kunststoffteile vorgesehen sind. Die ausschließliche Verwendung dieser hochtemperaturbeständigen Kunststoffe ist jedoch aus wirtschaftlicher und fertigungstechnischer Sicht nicht vorteilhaft.There are already known iron with heat shields. Heat shields As a rule, cover the heat radiating lower part or all of the surface Assembly to the overlying plastic parts of the iron from too strong To protect heat radiation. The unshielded heat radiation of the lower module would stress the overlying plastic parts of the housing. That's one Deformation of the plastic parts or a faster aging of the plastic through the Heat influences possible. Some iron manufacturers have tried this problem to get a grip on it by using particularly heat-resistant plastics for the upper one Assembly or directly adjacent to the lower assembly plastic parts are provided. The exclusive use of these high temperature resistant However, plastics is not advantageous from an economic and production point of view.

Ein Wärmeschutzschild aus Kunststoff ist beispielsweise aus der US-A 5,623,775 bekannt.A heat shield made of plastic is known for example from US-A 5,623,775.

Ein weiteres Wärmeschutzschild, das zwischen einer unteren Baugruppe und einer oberen Baugruppe eines Bügeleisens angeordnet ist, ist aus der JP 4-210098 bekannt. Die obere Baugruppe wird dabei durch Schrauben unmittelbar mit dem Wärmeschutzschild und der unteren Baugruppe verschraubt.Another heat shield, that between a lower assembly and an upper one Assembly of an iron is arranged, is known from JP 4-210098. The upper Assembly is by screws directly with the heat shield and the screwed lower assembly.

Eine höhere Kunststoffbeanspruchung des Kunststoffgehäuses der oberen Baugruppe tritt insbesondere im Befestigungsbereich mit der unteren Baugruppe ein, da dort nicht nur eine starke mechanische Beanspruchung sondern durch Wärmeleitung von der heißen unteren Baugruppe auch eine thermische Beanspruchung vorliegt. Deshalb wurde bei bekannten Bügeleisen beispielsweise die obere Baugruppe an die untere Baugruppe angeschraubt, wobei die Schraube im Kontaktbereich mit der oberen Baugruppe durch zusätzliche Abstandsmittel thermisch isoliert wurde. Die bisher bekannten Lösungen zur thermisch unproblematischen Verbindung der oberen Baugruppe mit der unteren Baugruppe sind jedoch entweder hinsichtlich des Montageaufwandes, der thermischen Abschirmungswirkung, der Falltestbeständigkeit oder aus wirtschaftlichen Gründen nachteilig.A higher plastic stress of the plastic housing of the upper assembly occurs especially in the mounting area with the lower module, since there is not only one strong mechanical stress but by heat conduction from the hot lower Assembly is also a thermal stress. Therefore, in known Iron, for example, the upper assembly screwed to the lower assembly, the screw in the contact area with the upper assembly by additional Spacer was thermally isolated. The previously known solutions for thermal unproblematic connection of the upper module to the lower module However, either in terms of assembly costs, the thermal Shielding effect, drop resistance or for economic reasons disadvantageous.

Es ist daher eine Aufgabe der vorliegenden Erfindung, ein Bügeleisen der eingangs genannten Art bereitzustellen, das die Nachteile des Standes der Technik ausräumt, indem eine gute thermische Abschirmung gegenüber dem Kunststoffgehäuse der oberen Baugruppe und gleichzeitig eine unter thermischen und herstelltechnischen Aspekten vorteilhafte Verbindung der unteren mit der oberen Baugruppe gegeben ist.It is therefore an object of the present invention, an iron of the beginning to provide said type, which eliminates the disadvantages of the prior art, by a good thermal shield against the plastic housing of the upper Assembly and at the same time under thermal and manufacturing aspects advantageous connection of the lower is given to the upper assembly.

Diese Aufgabe wird durch ein Bügeleisen mit den Merkmalen des Anspruchs 1 gelöst. Dadurch daß der Wärmeschutzschild erste Befestigungsmittel aufweist, über die die untere Baugruppe an dem Wärmeschutzschild und zweite Befestigungsmittel aufweist, über die die obere Baugruppe an dem Wärmeschutzschild befestigbar sind, ist das Wärmeschutzschild derart ausgebildet, daß es eine Doppelfunktion erfüllt, einerseits die Abschirmung der von der unteren Baugruppe abstrahlenden Wärme gegenüber der oberen Baugruppe und andererseits die Minimierung der Wärmeleitung von der unteren Baugruppe in die obere Baugruppe in Folge der Verbindung beider Teile über das Wärmeschutzschild. Die untere und die obere Baugruppe sind ausschließlich über die Befestigungsmittel des Wärmeschutzschildes miteinander verbunden. Das erste und das zweite Befestigungsmittel sind integraler Bestandteil des Wärmeschutzschildes, es sind keine zusätzlichen Befestigungsmittel zwischen insbesondere der unteren und oberen Baugruppe notwendig. Es gibt keine weiteren Wärmebrücken insbesondere durch Befestigungsmittel. Das erste und das zweite Befestigungsmittel sind voneinander verschiedene Befestigungsmittel, so daß die Wärmeleitungsstrecke von den ersten Befestigungsmitteln zu den zweiten Befestigungsmitteln größer ist. Das Wärmeschutzschild ist zur unteren und ggf. zur oberen Baugruppe beabstandet und zwischen diesen als im wesentlichen horizontaler plattenförmiger Körper angeordnet, so daß außer über die Befestigungsmittel keine weitere Wärmeleitung unmittelbar von der unteren Baugruppe auf die obere Baugruppe einwirkt.This object is achieved by an iron with the features of claim 1. Thereby that the heat shield has first attachment means, over which the lower Assembly on the heat shield and second fastening means, over which the upper assembly can be attached to the heat shield, is the heat shield designed such that it performs a dual function, on the one hand the shield of the lower assembly radiating heat to the upper assembly and on the other minimizing heat conduction from the lower assembly to the upper assembly as a result of the connection of both parts over the heat shield. The lower and the upper subassembly is exclusively via the fastening means of the heat shield connected with each other. The first and second attachment means are more integral Part of the heat shield, there are no additional fasteners between in particular the lower and upper module necessary. There is none further thermal bridges, in particular by fastening means. The first and the second Fasteners are mutually different fastening means, so that the heat transfer path from the first attachment means to the second attachment means is larger. The heat shield is to the lower and possibly to the upper Assembly spaced and between them as substantially horizontal plate-shaped body arranged so that except for the fastening means no further Heat conduction acts directly from the lower assembly to the upper assembly.

Vorteilhafterweise ist das Wärmeschutzschild als Blechbiegeteil ausgebildet. Ein Blechbiegeteil vereint die Eigenschaften einer geringen Bauhöhe, einer geringen Emissivität, einer begrenzten Wärmeleitfähigkeit und einer gewissen Biegeelastizität bei ansonsten hoher Festigkeit. Die obere Baugruppe kann somit wärmegeschützt mit kurzem Abstand zur unteren Baugruppe angeordnet werden.Advantageously, the heat shield is formed as a sheet metal bent part. A sheet metal part combines the properties of a low height, a low emissivity, a limited thermal conductivity and a certain bending elasticity at otherwise high Strength. The upper assembly can thus be heat protected with a short distance to lower assembly can be arranged.

In weiterer vorteilhafter Ausgestaltung weist das Wärmeschutzschild einen Emissionsgrad auf, der kleiner als der von Kunststoff ist. Dies wird einerseits durch die Materialauswahl und andererseits durch die Oberflächenbehandlung am Wärmeschutzschild erreicht. Vorzugsweise weist das Wärmeschutzschild eine Emissivität mit ε < 0,4 vorzugsweise ε < 0,3 weiter bevorzugt ε < 0,2 bzw. ε < 0,1 auf. Gemäß einer bevorzugten Ausführungsform ist das Wärmeschutzschild aus verzinktem Stahlblech hergestellt, dessen Oberfläche poliert ist. Dadurch wird üblicherweise ein Emissionsgrad von ε = 0,045 bis 0,05 erreicht, also ein ε, das kleiner als 0,06 ist. Die geringe Emissivität ist von Bedeutung, da dadurch die oberhalb des Wärmeschutzschildes angeordneten Kunststoffteile mit einer geringeren vom Wärmeschutzschild ausgehenden Wärmestrahlung beansprucht werden.In a further advantageous embodiment, the heat shield has an emissivity on, which is smaller than that of plastic. This is on the one hand by the choice of materials and on the other hand achieved by the surface treatment on the heat shield. Preferably, the heat shield has an emissivity with ε <0.4 preferably ε <0.3, more preferably ε <0.2 or ε <0.1. According to a preferred Embodiment, the heat shield is made of galvanized sheet steel, whose Surface is polished. This usually results in an emissivity of ε = 0.045 to 0.05 reached, ie an ε, which is smaller than 0.06. The low emissivity is significant because thereby arranged above the heat shield plastic parts with a lower heat radiation emanating from the heat shield can be claimed.

In weiterer vorteilhafter Ausbildung sind die Baugruppen mit dem Wärmeschutzschild durch Umformprozesse verbunden. Das Wärmeschutzschild weist als erste Befestigungsmittel Öffnungen auf, die mit vertikal herausragenden Zapfen an der unteren Baugruppe zusammenwirken, so daß durch Umformung der Zapfen über die Öffnungen eine Nietverbindung entsteht. Das Wärmeschutzschild weist als zweite Befestigungsmittel einstückig an dem Wärmeschutzschild angeformte Laschen auf, die vertikal hochgebogen sind. Diese pilzförmigen Laschen werden durch Schlitze in einem Unterteil der oberen Baugruppe durchgesteckt und anschließend verdreht. Diese Befestigungstechnik ist eher punktuell und läßt daher nur eine geringe Wärmeleitung zur oberen Baugruppe zu. Ferner ist diese Befestigungsweise im Vergleich zu konventionellen Schraubbefestigungen mit Wärmeisolationsschutz wirtschaftlicher in der Massenherstellung einsetzbar. An dem Unterteil ist in vorteilhafter Weise ein Tankbodenteil und ein Gehäuseteil befestigt.In a further advantageous embodiment, the modules with the heat shield by Forming processes connected. The heat shield has as the first attachment means Openings with vertical protruding pins on the lower assembly cooperate, so that by forming the pin over the openings a Rivet connection is formed. The heat shield has as a second attachment means integrally molded on the heat shield tabs that are bent up vertically are. These mushroom-shaped tabs are formed by slots in a lower part of the upper Inserted assembly and then twisted. This fastening technique is more likely selectively and therefore allows only a small heat conduction to the upper assembly. Further is this mounting method compared to conventional screw with Thermal insulation protection can be used more economically in mass production. To the Lower part is advantageously a tank bottom part and a housing part attached.

Weitere vorteilhafte Merkmale gehen aus der nachfolgenden Beschreibung eines Ausführungsbeispiels anhand von Figuren hervor. Diese zeigen:

Fig. 1
eine Explosionsdarstellung eines Bügeleisens nach der Erfindung,
Fig. 2
eine perspektivische Darstellung eines Wärmeschutzschildes für ein Bügeleisen nach Fig. 1,
Fig. 3
eine perspektivische Darstellung eines Wärmeschutzschildes mit unterer Baugruppe für ein Bügeleisen nach Fig. 1, und
Fig. 4
eine perspektivische Darstellung eines Wärmeschutzschildes, an dem die untere Baugruppe und ein Teil der oberen Baugruppe für ein Bügeleisen nach Fig. 1 befestigt ist.
Further advantageous features will become apparent from the following description of an embodiment with reference to figures. These show:
Fig. 1
an exploded view of an iron according to the invention,
Fig. 2
a perspective view of a heat shield for an iron according to Fig. 1,
Fig. 3
a perspective view of a heat shield with lower assembly for an iron according to Fig. 1, and
Fig. 4
a perspective view of a heat shield to which the lower assembly and a portion of the upper assembly for an iron according to Fig. 1 is attached.

Fig. 1 zeigt eine Explosionsdarstellung eines Bügeleisens 1. Das Bügeleisen weist eine untere Baugruppe 2 auf. Die untere Baugruppe 2 ist mit einem Aluminiumdruckgußkörper versehen, der eine Dampfkammer aufweist. Die Dampfkammer ist von einem etwa u-förmig angeordneten Heizungswiderstand umgeben, der in Druckguß eingegossen ist. In die Dampfkammer wird mittels eines Tropfventils, das nicht zur unteren Baugruppe gehört, Wasser allmählich eingetropft, um in der Dampfkammer Dampf zu erzeugen. An der Unterseite des Druckgußkörpers ist eine oberflächenbehandelte Aluminiumsohle befestigt. Die Dampfkammer ist nach oben mit einem Dampfkammerdeckel, abgesehen von der Tropfventilöffnung und Dampfstoßöffnung, abgeschlossen. Zur unteren Baugruppe gehören auch Heizungsanschlußleitungen und ein Thermostat.Fig. 1 shows an exploded view of an iron 1. The iron has a lower assembly 2 on. The lower assembly 2 is provided with an aluminum die cast body provided, which has a steam chamber. The steam chamber is approximately U-shaped arranged heating resistor surrounded, which is poured in pressure casting. In the Steam chamber is controlled by means of a drip valve, which does not belong to the lower assembly, Water gradually dripped to produce steam in the steam chamber. At the Bottom of the die-cast body is a surface-treated aluminum sole attached. The steam chamber is up with a steam chamber lid, aside from the Drip valve opening and steam discharge opening, completed. Belong to the lower assembly also heating connection lines and a thermostat.

Auf die untere Baugruppe 2 ist das Wärmeschutzschild 3 befestigbar. Am Wärmeschutzschild 3 wird die obere Baugruppe des Bügeleisens befestigt.On the lower module 2, the heat shield 3 can be fastened. At the Heat shield 3, the upper assembly of the iron is attached.

Die obere Baugruppe 6 besteht weitgehend aus Kunststoffteilen, wie dem Unterteil 4, einem Tankbodenteil und einem Gehäuse 5. An dem Gehäuse 5 ist ein Handgriff, alle Bedienungselemente des Dampfbügeleisens wie Dampfstoß und Temperaturregelung und ein Wassertank enthalten. Der Wassertank wird einerseits durch die äußere Gehäuseverschalung und andererseits ein Tankbodenteil gebildet, das den Wassertankraum der Gehäuseverschalung nach unten hin abschließt. Das Tankbodenteil und die Gehäuseverschalung werden durch Kunststoffverschweißung miteinander verbunden.The upper assembly 6 consists largely of plastic parts, such as the lower part 4, a Tank bottom part and a housing 5. On the housing 5 is a handle, all Controls of steam iron such as steam shock and temperature control and a water tank included. The water tank is on the one hand by the outside Housing molding and on the other hand formed a tank bottom part, the water tank room the Gehäuseverschalung down closes. The tank bottom part and the Housing formwork are joined together by plastic welding.

Fig. 2 zeigt ein Wärmeschutzschild aus Stahlblech. Das Wärmeschutzschild 3 ist verzinkt, damit es nicht rostet und eine geringe Emissivität aufweist. Durch eine Politur der Oberfläche des Stahlblechs wird eine besonders niedrige Emissivität (nach dem Kirchhoffschen Strahlungsgesetz), also Wärmeabstrahlung von ε = 0,045 bis 0,05 erreicht. Somit ist das Wärmeschutzschild besonders gut geeignet, um nicht seinerseits Wärmestrahlung in größerem Umfang an die darüberliegende obere Baugruppe abzustrahlen. Im Vergleich zu dieser Lösung haben Wärmeschutzschilder aus Kunststoff eine Emissivität von ε = 0,9. Alternativ kann das Wärmeschutzschild auch aus einem anderen Material, insbesondere aus anderen Metallen wie z. B. Aluminium hergestellt sein. Fig. 2 shows a heat shield made of sheet steel. The heat shield 3 is galvanized, so that it does not rust and has a low emissivity. Through a polish of the surface of the steel sheet is a particularly low emissivity (after the Kirchhoffschen Radiation law), ie heat radiation of ε = 0.045 to 0.05. So that's it Heat shield particularly well suited to not heat radiation in turn To radiate greater extent to the overlying upper assembly. Compared to In this solution plastic heat shields have an emissivity of ε = 0.9. Alternatively, the heat shield can also be made of another material, in particular other metals such. B. aluminum be made.

Das Wärmeschutzschild ist ein Blechbiegeteil mit Ausstanzungen. Es ist flächig bzw. plattenförmig ausgebildet mit einer flächigen Erstreckung, die zur Erstreckung des Heizungswiderstandes in der unteren Baugruppe 2 korrespondiert und die die von der Dampfkammer ausgehende Wärmestrahlung ebenfalls weitgehend abschirmt. Relativ zur oberen Baugruppe korrespondiert die flächige Erstreckung des Wärmeschutzschildes 3 im wesentlichen mit weiten Teilen des Tankbodens, wobei insbesondere eine Abschirmung um die Öffnung für die Eintropfstelle in die Dampfkammer 7 und um die Öffnung 8 für die Einspritzstelle für den Dampfstoß vorgesehen ist. Die Kontur des Wärmeschutzschildes ist mit einem um 90° abgewinkelten Rand 9 versehen, der die Steifigkeits des Blechbiegeteils erhöht. Im hinteren Bereich des Wärmeschutzschildes 3, also gegenüberliegend zur Bügeleisenspitze, sind Öffnungen 10 vorgesehen, die als erste Befestigungsmittel zur Befestigung an der unteren Baugruppe 2 dienen. Im vorderen Bereich des Wärmeschutzschildes 3 benachbart zur Bügeleisenspitze sind ebenfalls Öffnungen 11 ausgebildet, die auch als erste Befestigungsmittel zur Befestigung an der unteren Baugruppe dienen. Das Blechbiegeteil ist im Bereich der vorderen ersten Befestigungsmittel 11 derart mehrfach abgewinkelt und nach unten zur unteren Baugruppe hin erstreckend ausgebildet, daß eine Befestigung an der unteren Baugruppe auch an dem tieferen Niveau der unteren Baugruppe 2 befestigbar ist. An dem Wärmeschutzschild 3 sind Abstandhalter 12 seitlich am Rand ausgebildet, die an der unteren Baugruppe 2 aufliegen und so zusätzlich dafür sorgen, daß ein gleichmäßiger Abstand mit Luftspalt zwischen der unteren Baugruppe 2 und dem Wärmeschutzschild 3 besteht.The heat shield is a sheet metal bent part with cutouts. It is flat or plate-shaped with a flat extension, the extension of the Heater resistor in the lower module 2 corresponds and that of the Steam chamber outgoing heat radiation also largely shields. Relative to Upper assembly corresponds to the areal extent of the heat shield 3 in essentially with large parts of the tank bottom, in particular a shield around the opening for the dropping point in the steam chamber 7 and the opening 8 for the Injection point is provided for the steam pulse. The contour of the heat shield is provided with a 90 ° angled edge 9, the rigidity of the sheet metal bending part elevated. In the rear area of the heat shield 3, so opposite to Ironing tip, openings 10 are provided, which are used as first attachment means for Attachment to the lower module 2 serve. In the front area of the Heat shield 3 adjacent to the iron tip are also openings 11th formed, which also serves as the first fastening means for attachment to the lower Serve assembly. The bent sheet metal part is in the area of the front first fastening means 11 so many times angled and extending down to the lower assembly out formed so that an attachment to the lower assembly also at the lower level the lower assembly 2 can be fastened. On the heat shield 3 are spacers 12 laterally formed at the edge, which rest on the lower assembly 2 and so In addition, ensure that a uniform distance with air gap between the lower Assembly 2 and the heat shield 3 consists.

Die äußere Kontur des Wärmeschutzschildes 3 ist etwa u-förmig, wobei der vordere Teil überwiegend flächig mit Blech ausgefüllt ist und im hinteren Bereich abgewandt zur Bügeleisenspitze zwei Blechschenkel ausgebildet sind. An den Enden dieser Schenkel in Nachbarschaft zu den ersten Befestigungsmitteln 10 sind zweite Befestigungsmittel 13 vorgesehen, die zur Befestigung der oberen Baugruppe 6 am Wärmeschutzschild dienen. Die zweiten Befestigungsmitttel 13 sind vertikal nach oben umgebogene Laschen, die mit einem etwa pilzförmigen Kopf 14 abschließen. Zur Befestigung der oberen Baugruppe 6 im vorderen Bereich am Wärmeschutzschild 3 sind weitere zwei zweite Befestigungsmittel 15 ausgebildet. Die zweiten Befestigungsmittel 15 sind wie die zweiten Befestigungsmittel 13 ebenfalls um 90° winklig nach oben umgebogene Abschnitte des Blechbiegeteils bzw. Wärmeschutzschildes 3, die ebenfalls pilzförmig abschließen. The outer contour of the heat shield 3 is approximately U-shaped, wherein the front part largely filled with sheet metal and turned away in the rear area to Ironing tip two metal legs are formed. At the ends of these thighs in Neighboring to the first attachment means 10 are second attachment means 13 provided, which serve to secure the upper assembly 6 on the heat shield. The second Befestigungsmitttel 13 are vertically upwardly bent tabs with complete an approximately mushroom-shaped head 14. For attachment of the upper assembly 6 in Front area on the heat shield 3 are two more second fastening means 15th educated. The second attachment means 15 are like the second attachment means 13 likewise at 90 ° bent upwards bent portions of the sheet metal bending part or Heat shield 3, which also complete mushroom-shaped.

Fig. 3 zeigt die Verbindung des Wärmeschutzschildes 3 mit der unteren Baugruppe 2. Die untere Baugruppe 2 weist ein Aluminiumdruckgußteil 16 auf, in dem der Heizungswiderstand eingegossen ist. Das Aluminiumdruckgußteil 16 wird von einer Aluminium- oder Stahlsohle 17 im unteren Bereich abgeschlossen. In der Fig. 3 ist der Dampfkammerdeckel, der die Dampfkammer nach oben, abgesehen von den Wasserzuführungsstellen, abschließt, nicht dargestellt.Fig. 3 shows the connection of the heat shield 3 with the lower assembly 2. The lower assembly 2 has a Aluminiumdruckgußteil 16, in which the heating resistor is poured. The die-cast aluminum part 16 is made of an aluminum or steel sole 17 completed at the bottom. In Fig. 3, the steam chamber lid, which is the Steam chamber upwards, except for the water supply points, completes, not shown.

Der Aluminiumdruckgußkörper 16 der unteren Baugruppe 2 weist vertikal nach oben abstehende Zapfen 18 auf, die derart angeordnet sind, daß die Öffnungen 10 und 11 des Wärmeschutzschildes 3 aufsteckbar sind. Zur Befestigung des Wärmeschutzschildes 3 an der unteren Baugruppe 2 wird ein Stempelwerkzeug auf die Zapfen 18 gepreßt, so daß eine feste Nietverbindung zwischen dem Wärmeschutzschild 3 und der unteren Baugruppe 2 hergestellt wird. In Fig. 3 sind die Zapfen 18 unvernietet dargestellt.The die-cast aluminum body 16 of the lower assembly 2 faces vertically upwards projecting pins 18 which are arranged such that the openings 10 and 11 of the Heat shield 3 can be plugged. To attach the heat shield 3 on the lower assembly 2, a punch tool is pressed onto the pins 18, so that a Fixed rivet connection between the heat shield 3 and the lower assembly. 2 will be produced. In Fig. 3, the pins 18 are shown riveted.

Fig. 4 zeigt die untere Baugruppe 2, an der das Wärmeschutzschild 3 und das Unterteil 4 der oberen Baugruppe 6 befestigt sind. Das Unterteil 4 ist aus thermostabilem Kunststoff und umschließt die Heizung, den Druckgußkörper 16 umlaufend am gesamten Rand. Das Unterteil 4 dient ebenfalls zur Wärmeabschirmung gegenüber dem Tankboden und dem Gehäuse 5. Das Unterteil 4 weist Schlitze 19 auf, durch die die pilzförmigen Enden 18 der zweiten Befestigungsmittel 13 und 15 durchsteckbar sind. Die Länge der Laschen der zweiten Befestigungsmittel des Wärmeschutzschildes 3 ist so bemessen, daß die pilzförmigen Enden der Laschen gerade vollständig aus den Schlitzen 19 des Unterteils 4 herausragen. Benachbart zu den vier Schlitzöffnungen 19 sind kreisscheibenförmige ansteigende Rampen im Unterteil 4 ausgebildet, so daß bei einer Verdrehung der pilzförmigen Enden 14 der zweiten Befestigungsmittel 13 und 15 um 90° das Unterteil zunehmend stärker an den Wärmeschutzschild angepreßt wird. Dabei liegt das Wärmeschutzschild 3 lediglich in kleinen Bereichen und eher linienförmig am Unterteil 4 an, um die Wärmeleitung möglichst gering zu halten. Unmittelbar auf das Unterteil wird ein plattenförmiges Tankbodenteil aufgesetzt. Das gesamte Gehäuse 5 wird benachbart zur Bügelspitze am Unterteil 4 angeschraubt. Hierzu weist das Unterteil 4 eine vertikale Aufnahmeöffnung 21 für eine Verschraubung des Gehäuses 5 mit dem Unterteil 4 von oben auf. Fig. 4 shows the lower assembly 2, on which the heat shield 3 and the lower part of the fourth the upper assembly 6 are attached. The lower part 4 is made of thermostable plastic and surrounds the heater, the die body 16 circumferentially on the entire edge. The Lower part 4 also serves to heat shield against the tank bottom and the Housing 5. The lower part 4 has slots 19 through which the mushroom-shaped ends 18 of second fastening means 13 and 15 are push-through. The length of the tabs of second attachment means of the heat shield 3 is dimensioned so that the mushroom-shaped ends of the tabs just completely from the slots 19 of the lower part. 4 protrude. Adjacent to the four slot openings 19 are circular disc-shaped Rising ramps formed in the lower part 4, so that at a rotation of the mushroom-shaped ends 14 of the second fastening means 13 and 15 by 90 ° the lower part increasingly pressed against the heat shield. That's it Heat shield 3 only in small areas and more linear on the lower part 4, to keep the heat conduction as low as possible. Immediately on the lower part becomes one plate-shaped tank bottom part mounted. The entire housing 5 is adjacent to Ironing tip bolted to the lower part 4. For this purpose, the lower part 4 has a vertical Receiving opening 21 for a screw connection of the housing 5 with the lower part 4 from above on.

Die Ausführungsform gemäß den Figuren 1 bis 4 weist mehrere Vorteile auf. Zum einen ist eine Montage aller Teile durch Aufstecken übereinander möglich. Die Befestigungsmittel an dem Wärmeschutzschild 3 gewähren eine sichere Verbindung, ohne daß zusätzliche Kleinteile wie Schrauben oder Wärmeisolationshülsen zur Verbindung notwendig sind, da die Befestigungsmittel bereits am Wärmeschutzschild an der unteren Baugruppe und am Unterteil 4 der oberen Baugruppe 6 jeweils einstückig angeformt sind, so daß durch Umformung bzw. Deformation eine massenherstellungsgerechte Verbindung gegeben ist.The embodiment according to FIGS. 1 to 4 has several advantages. For one thing is an assembly of all parts by attaching one above the other possible. The fasteners on the heat shield 3 grant a secure connection without additional Small parts such as screws or heat insulating sleeves are necessary for connection, as the Fasteners already on the heat shield on the lower module and on Lower part 4 of the upper assembly 6 are integrally formed, so that by Forming or deformation is a mass-production fair connection given.

Das Wärmeschutzschild 3 verhindert, daß es insbesondere oberhalb der Heizungswiderstände zu Wärmespots an den darüberliegenden Kunststoffteilen der oberen Baugruppe 6 kommt, da das Wärmeschutzschild 3 nicht nur eine geringe Wärmeabstrahlung aufweist, sondern auch Wärmespots vergleichmäßigt über die gesamte Fläche des Wärmeschutzschildes. In einem gewissen Grad erfüllt das metallische Wärmeschutzschild 3 auch relativ zur wärmeabstrahlenden unteren Baugruppe 2 die Funktion eines Wärmereflektors. Nur die von der konstruktiven Formgebung aufwendigeren Wärmeabschirmungsfunktionen müssen von einem thermostabilen Unterteil 4 der oberen Baugruppe 6 übernommen werden. Oberhalb des Unterteils 4 in der oberen Baugruppe 6 sind somit keine weiteren thermostabilen Kunststoffe erforderlich. Der Tankboden ist damit aus Polypropylen herstellbar, wodurch er sehr gut mit dem Gehäuse 5 verschweißbar ist.The heat shield 3 prevents it in particular above the Heating resistors to heat spots on the overlying plastic parts of the upper Assembly 6 comes because the heat shield 3 not only a low heat radiation but also heat spots equalized over the entire surface of the Protective heat shield. To a certain extent, the metallic heat shield 3 complies also relative to the heat radiating lower assembly 2, the function of a Heat reflector. Only those of the constructive design consuming Wärmeabschirmungsfunktionen must from a thermostable lower part 4 of the upper Module 6 are taken over. Above the lower part 4 in the upper assembly 6 Thus, no further thermostable plastics are required. The tank bottom is with it made of polypropylene, whereby it is very well welded to the housing 5.

Dadurch daß das Wärmeschutzschild als Blechbiegeteil ausgebildet ist, ist eine teilweise Flexibilität gegeben, wodurch das Bügeleisen durch Stöße und Herunterfallen keinen Schaden nimmt, da die Blechverbindung zwischen ersten und zweiten Befestigungsmitteln die Kräfte sehr gut aufnehmen kann und somit die Stöße abfedert. Bei einer Befestigung mit Kunststoffteilen gemäß dem Stand der Technik würde die Sprödigkeit des Kunststoffs schneller zu einem Bruch im Verbindungsbereich zwischen der schweren unteren Baugruppe und der leichteren oberen Baugruppe führen.The fact that the heat shield is designed as a sheet metal part is a partial Flexibility given, eliminating the iron by bumping and dropping Damage takes place because the sheet metal connection between first and second fasteners The forces can absorb very well and thus cushion the shocks. When mounting with Plastic parts according to the prior art would reduce the brittleness of the plastic faster to a break in the connection area between the heavy bottom Guide assembly and the lighter upper assembly.

Claims (7)

  1. Iron (1) having a housing made of plastic as the upper subassembly (6) and a sole plate with a heater and an aluminium die-cast element (16) as the lower subassembly (2), a metallic heat shield (3) provided between the upper subassembly (6) and the lower subassembly (2) and shielding the upper subassembly (6) from the thermal radiation emanating from the lower subassembly (2), the upper subassembly (6) having a bottom part (4) which can be fixed to the heat shield (3), and first fixing means (10, 11) being provided, via which the lower subassembly (2) can be fixed to the heat shield (3), and second fixing means (13, 15) being provided, via which the bottom part (4) of the upper subassembly (6) can be fixed to the heat shield (3),
    characterized in that the heat shield (3) has the first and second fixing means (10, 11, 13, 15) as integral component, in that the bottom part (4) made of thermostable plastic surrounds the heater and the die-cast element (16) at the edge, the first and second fixing means (10, 11, 13, 15) being different from one another and the lower and upper subassemblies (2, 6) being connected to one another solely via the fixing means (10, 11, 13, 15) of the heat shield (3), and the bottom part (4) being different from the heat shield (3).
  2. Iron according to Claim 1,
    characterized in that the heat shield (3) is designed as a bent sheet-metal part.
  3. Iron according to Claim 1 or 2,
    characterized in that the heat shield (3) is formed from a material and/or is provided with a surface which have and/or has an emittance which is less than that of plastic with an emittance of 0.9.
  4. Iron according to Claim 1 or 2,
    characterized in that the heat shield (3) is formed from a material and/or is provided with a surface which have and/or has an emittance which is less than 0.4.
  5. Iron according to Claim 1 or 2,
    characterized in that the heat shield (3) is formed from a material and/or is provided with a surface which have and/or has an emittance which is less than 0.1.
  6. Iron according to one of the preceding claims,
    characterized in that the heat shield (3) can be fixed to the lower and/or to the upper subassembly (2, 6) in each case by shaping the fixing means (10, 11, 13, 14) of the heat shield (3) and/or by shaping on the subassemblies (2, 6).
  7. Iron according to one of the preceding claims,
    characterized in that a tank-base part and a housing part (5) can be fixed to the bottom part (4).
EP01105980A 2000-03-22 2001-03-10 Iron Expired - Lifetime EP1143061B1 (en)

Applications Claiming Priority (2)

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DE10013987A DE10013987A1 (en) 2000-03-22 2000-03-22 Iron
DE10013987 2000-03-22

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EP1143061A3 EP1143061A3 (en) 2002-07-03
EP1143061B1 true EP1143061B1 (en) 2005-05-18

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2203349B2 (en) 2003-11-21 2005-02-01 Bsh Krainel S.A. GRIDDLE.
FR3062400B1 (en) * 2017-01-31 2019-01-25 Seb S.A. IRON IRON COMPRISING A THERMAL SCREEN INTERPOSED BETWEEN A HOUSING AND A HEATING BODY

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04210098A (en) * 1990-12-07 1992-07-31 Matsushita Electric Ind Co Ltd Iron

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD33769A (en) *
FR445673A (en) * 1912-07-02 1912-11-16 Joseph Merle Improvements in irons
US2258639A (en) * 1937-11-09 1941-10-14 Dominion Electrical Mfg Compan Electric iron
FR2704248B1 (en) * 1993-04-23 1995-11-10 Moulinex Sa IRON AND METHOD OF MANUFACTURING SUCH AN IRON.
US5623775A (en) * 1996-01-16 1997-04-29 Black & Decker Inc. Electric steam iron with improved water tank and skirt assembly
US5922228A (en) * 1997-01-10 1999-07-13 Hp Intellectual Corp. Heat spacer for iron
US5944943A (en) * 1998-01-28 1999-08-31 Orcon Corporation Carpet seaming iron

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04210098A (en) * 1990-12-07 1992-07-31 Matsushita Electric Ind Co Ltd Iron

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 548 (C - 1005) 18 November 1992 (1992-11-18) *

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EP1143061A3 (en) 2002-07-03
EP1143061A2 (en) 2001-10-10
DE10013987A1 (en) 2001-10-04
DE50106243D1 (en) 2005-06-23
ES2242667T3 (en) 2005-11-16

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