EP2788688B1 - Kochfeld - Google Patents

Kochfeld Download PDF

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Publication number
EP2788688B1
EP2788688B1 EP12809353.1A EP12809353A EP2788688B1 EP 2788688 B1 EP2788688 B1 EP 2788688B1 EP 12809353 A EP12809353 A EP 12809353A EP 2788688 B1 EP2788688 B1 EP 2788688B1
Authority
EP
European Patent Office
Prior art keywords
coating
base body
hob
recess
advantageously
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.)
Active
Application number
EP12809353.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2788688A1 (de
Inventor
MAGDALENA Miguel Angel BUÑUEL
Diego Dionisio Micolau
Francisco Javier Ester Sola
Damaso Martin Gomez
Carmelo Pina Gadea
Fernando Planas Layunta
Julio Rivera Peman
Alberto Ignacio SINUSE
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2788688A1 publication Critical patent/EP2788688A1/de
Application granted granted Critical
Publication of EP2788688B1 publication Critical patent/EP2788688B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated

Definitions

  • the invention relates to a hob according to the preamble of claim 1.
  • EP 2 223 900 A1 a plate unit of a cooktop with a coating located on an underside.
  • the object of the invention consists in particular in providing a generic device with improved properties with regard to increased comfort.
  • the object is achieved according to the invention by the features of patent claim 1, while advantageous configurations and developments of the invention can be found in the dependent claims.
  • the invention relates to a hob with a plate unit, with at least one base body and at least one coating, which is arranged in at least one partial area of at least one side of the base body.
  • the coating is intended to give at least a ceramic appearance.
  • a “base body” is to be understood in particular as a component of the panel unit which has a mass which corresponds to at least 60%, in particular at least 75%, advantageously at least 85%, preferably at least 95%, of a mass of the panel unit.
  • a base body preferably differs from a body on which a coating is applied.
  • the base body is preferably designed in the manner of a plate.
  • the base body is designed "plate-like” should be understood in particular to mean that the base body has a maximum extension along one of the main axes of inertia, which is at most 50%, in particular a maximum of 20%, advantageously a maximum of 10%, preferably a maximum of 5% of maximum extensions along the other two main axes of inertia.
  • An "extension" of an object along an axis is to be understood in particular as a maximum of distances between any two planes which are each oriented perpendicularly to the axis and each intersect at least one point of the object.
  • a "partial area" of a side of the base body is to be understood in particular as an area of the surface of the base body whose area is at least 5%, in particular at least 10%, advantageously at least 20%, particularly advantageously at least 40%, preferably at least 80%, of an area of the Page of the body corresponds.
  • the fact that the coating is intended to create a "ceramic appearance" should be understood to mean that the coating has at least one, advantageously at least two, preferably at least three, ceramic properties.
  • the coating is to be understood in particular as being specially designed and/or equipped.
  • a "ceramic property” is to be understood in particular as a property as is exhibited by ceramics.
  • the coating shows an at least essentially diffuse reflection as a ceramic property, at least on a side that is visible to an operator in the normal state.
  • the coating as a ceramic property has a Mohs hardness of at least 4, in particular at least 5, advantageously at least 6, preferably at least 7, at least on a side facing away from the base body.
  • the coating as a ceramic property has an electrically insulating effect, in particular a lower conductivity than 10 -4 S/m, in particular less than 10 -6 S/m, advantageously less than 10 -8 S/m.
  • the coating is preferably at least essentially non-transparent, at least in the visible light range, i.e. it has a transparency, in particular translucency, of a maximum of 10%, in particular a maximum of 1%, advantageously a maximum of 0.1% for the wavelength range between 380 nm and 780 nm. , preferably at most 0.01%.
  • the coating has a hue that is at least essentially white.
  • An at least essentially “white” hue is to be understood in particular as meaning a body color whose degree of reflectance is at least 60%, in particular at least 80%, preferably at least 90%, of the wavelengths between 380 nm and 780 nm has a value that is at most 40%, in particular at most 30%, advantageously at most 20%, preferably at most 10%, of a mean value of the reflectance for the wavelength range between 380 nm and 780 nm.
  • the degree of reflectance is greater than 0.7, in particular greater than 0.8, advantageously greater than 0.9, at least in the wavelength range between 380 nm and 780 nm.
  • the coating has visible granulation as a ceramic property.
  • Visible granulation is to be understood in particular as a surface structuring in which the boundaries between abutting, interconnected particles, which in particular have a grain size of at least 30 ⁇ m, in particular at least 100 ⁇ m, advantageously at least 300 ⁇ m, and in particular at most 2 mm , advantageously a maximum of 1 mm, preferably a maximum of 0.5 mm, are visible, ie there is a contrast between a color of the border and a color of the particles.
  • the coating has a thickness of at least 1 ⁇ m, in particular at least 10 ⁇ m, advantageously at least 100 ⁇ m.
  • the coating has a maximum thickness of 1 mm, in particular a maximum of 100 ⁇ m, advantageously a maximum of 10 ⁇ m.
  • the coating is formed from a ceramic material, an enamel or an inorganic polymer, which is formed in particular by a sol-gel process.
  • the coating is intended to form a chemical bond with the base body.
  • a "chemical bond” should be understood in particular to mean that atoms and/or molecules of the coating form new molecules with atoms and/or molecules of the base body.
  • an increase in comfort can be achieved, in particular through increased scratch resistance.
  • the coating has a recess which is intended to transmit light from a lighting unit arranged behind it.
  • a lighting unit is to be understood in particular as a "unit" with at least one lighting means, in particular a lamp, an LED and/or a vacuum fluorescent element, preferably a display unit, which is intended to display at least one digit.
  • the lighting unit is designed as a segment display. It is also conceivable that the lighting unit is provided to display a touch area for a touch-sensitive sensor, to border it in a way that is visible to an operator and/or his/her to mark the center.
  • the recess is preferably formed by at least one hole, in particular by a plurality of holes with distances of less than 3 mm, in particular less than 1 mm, advantageously less than 0.5 mm.
  • a “hole in a coating” should be understood to mean an area of the surface of the base body that is free of the coating and surrounded by the coating.
  • the recess preferably has a maximum diameter of 50 mm, in particular a maximum of 30 mm, advantageously a maximum of 20 mm.
  • the recess advantageously has a diameter of at least 1 mm, in particular at least 2, advantageously at least 5 mm.
  • a “diameter of a recess” is to be understood in particular as a diameter of a smallest sphere that encompasses all the holes in the recess.
  • the at least one recess is filled with an at least essentially at least translucent, in particular transparent, mass, in particular a quartz or a lacquer, in order in particular to achieve an even surface and/or to prevent soiling.
  • “Essentially” transparent should be understood to mean, in particular, a transparency of at least 30%, in particular at least 60%, advantageously at least 80%, preferably at least 90%.
  • the recess is formed by omission during application of the coating, in particular in a printing process, in particular a screen printing process.
  • the recess can also be formed after application of a liquid mass, which is intended to form the coating through solidification, in particular solidification and/or drying, by displacement of the mass during solidification, in particular by a negative of the recess.
  • a saving in components can be achieved.
  • an additional panel for a display unit can be dispensed with.
  • the recess is formed by at least one hole, in particular a large number of holes arranged next to one another, with a diameter of less than 1 mm, in particular less than 300 ⁇ m, advantageously less than 100 ⁇ m, preferably less than 30 ⁇ m.
  • a diameter of less than 1 mm in particular less than 300 ⁇ m, advantageously less than 100 ⁇ m, preferably less than 30 ⁇ m.
  • at least 5%, in particular at least 10%, advantageously at least 20%, and in particular at most 70%, advantageously at most 50%, preferably at most 30%, of a surface of the recess is formed by the at least one hole.
  • An “area of the recess” is to be understood in particular as a surface area of a smallest convex two-dimensional figure which encompasses the recess. In particular, an increase in comfort can be achieved.
  • an appearance of a continuous coating can be created.
  • components arranged behind the coating for example electronic components, are exposed to the excessive influence of light.
  • the recess is produced by a removal process.
  • the at least one hole of the recess is formed by a processing step after a completed coating.
  • the processing step is designed in particular as a laser processing method, water jet processing method, chemical and/or physical etching method, in particular plasma etching method.
  • the machining step is constituted by scratching with a hard material. In particular, high precision can be achieved when creating the recess.
  • the base body is formed from at least a glass-like material.
  • a "glass-like” material is to be understood in particular as meaning a material that has a high transparency, in particular of at least 60%, in particular at least 70%, advantageously at least 80%, preferably at least 90%.
  • a vitreous material has an amorphous structure at least partially, in particular to an extent of at least 30%.
  • a vitreous material has a tensile strength of at least 10 MPa, in particular at least 20 MPa, preferably at least 25 MPa.
  • a vitreous material has a compressive strength of at least 100 MPa, in particular at least 300 MPa, preferably at least 600 MPa.
  • a glass-like material has an E-modulus of at least 10 GPa, in particular at least 30 GPa, preferably at least 50 GPa.
  • a glass-like material preferably has a thermal expansion coefficient of at most 10 -4 /K, in particular at most 10 -5 /K, preferably at most 0.5*10 -5 /K.
  • a vitreous material advantageously has a melting temperature of at least 300.degree. C., in particular at least 500.degree.
  • the glass-like material is designed as a polymer, in particular as Plexiglas.
  • the vitreous material is at least 60% quartz.
  • the vitreous material is designed as borosilicate glass and/or as glass ceramic.
  • the vitreous material is formed from cordierite or a comparable ceramic material.
  • the base body made of a composite material, in particular silicon, aluminum, Aluminum oxide and/or quartz base and/or with a fabric structure made of glass fiber, quartz fiber and/or mineral fiber, in particular basalt fiber, is conceivable.
  • a stable, at least partially transparent, level and/or chemically resistant construction can be provided.
  • the coating is applied to a visible side of the base body.
  • a “visible side” is to be understood in particular as a side of the base body which faces an operator in a normal state.
  • the visible side can be touched by an operator in a mounted operating state.
  • the visible side forms at least 30%, in particular at least 35%, advantageously at least 40%, preferably at least 45%, of a surface of the base body.
  • the coating is arranged at least in an area that is provided as a user interface.
  • a "user interface” is to be understood in particular as an area in which operating elements, in particular sensors, are arranged, which are intended to send operating commands to a control unit.
  • optical display elements and/or sensors are arranged between the coating and the base body.
  • the base body is made of, in particular, non-transparent composite material
  • at least essentially the entire visible side can be coated, as a result of which, in particular, a flat surface can be provided.
  • protection of the visible side can be achieved, in particular when the base body is made of a material with a Mohs hardness of less than 5.
  • the at least one coating is advantageously applied at least partially by a printing process, in particular a screen printing process or an ink jet process.
  • a printing process in particular a screen printing process or an ink jet process.
  • inexpensive production can be achieved.
  • the coating is applied at least partially by a PVD method, in particular a sputtering method.
  • sol-gel method a spray method, a CVD method, a coating method and/or a casting method is used.
  • the invention is used in a hob, in particular in an induction hob.
  • the plate unit is advantageously designed as a hob plate.
  • a hob plate is to be understood in particular as a plate unit which is intended to store cookware while it is being heated.
  • the hob 10a shows a hob 10a with a plate unit 12a designed as a hob plate.
  • the disk unit 12a has a user interface 14a in a partial area.
  • the hob 10a has sensors 20a designed as operating elements and display elements 30a.
  • the display elements 30a are intended to display an operating state of the hob 10a.
  • the sensors 20a are arranged under the base body 40a.
  • the plate unit 12a has a base body 40a and a coating 42a, which is arranged on a complete visible side 44a of the base body 40a ( figure 2 ).
  • the coating 42a is intended to provide a ceramic appearance.
  • the coating 42a has recesses 50a in several partial areas. Viewed from above, the display elements 30a are arranged behind the recesses 50a.
  • the recesses 50a are formed by a plurality of holes. The holes have a diameter of 20 ⁇ m.
  • the holes are arranged in a hexagonal grid with a grid spacing of 50 ⁇ m.
  • the recesses 50a are made by a removal process. The holes of the recesses 50a were introduced into the coating 42a using a laser ablation method.
  • the recesses 50a each have a diameter of 20 mm.
  • the recesses 50a are circular and have the holes arranged in the grid over their entire surface.
  • the display elements 30a are designed as parts of a segment display which is intended to display numbers between 1 and 9 depending on a control.
  • the base body 40a is formed of uncolored, transparent, tempered borosilicate glass.
  • the coating 42a is applied using a PVD method. A technical ceramic is applied to the base body 40a by magnetron sputtering.
  • the coating 42a is formed of magnesium oxide having a hardness of 6 on Mohs.
  • the coating 42a is colored substantially white.
  • the coating 42a is opaque.
  • the coating 42a has a thickness of 300 ⁇ m.
  • the coating 42a has a microscopic roughness that results in diffuse reflection.
  • the coating is formed by a colored enamel. Small particles with sizes between 300 nm and 800 nm are finely distributed in the enamel. These particles ensure diffuse reflection or remission in the visible light range.
  • figure 3 shows another plate unit 12b of a hob 10b with a base body 40b and two coatings 42b, 43b.
  • the coatings 42b, 43b are intended to provide a ceramic appearance.
  • the coatings 42b, 43b are applied by a printing process.
  • a screen printing process was used here, which applied a sol-gel solution to the base body 40b.
  • the sol-gel solution has high levels of silica and alumina.
  • a dye, for example iron oxide, is added to the sol-gel solution, which causes a reddish coloration of the coating 42b.
  • the coating 42b is arranged on a visible side 44b of the base body 40b.
  • the coating 42b forms a user interface 14b.
  • the coating 42b has recesses 50b, under which display elements 30b of a display unit are arranged, which are intended to show an operating state of the hob 10b.
  • the recesses 50b have been left out during the coating process.
  • the recesses 50b are continuous and have a shape corresponding to the shape of the display unit.
  • the shape of the recesses 50b corresponds to a parallelogram.
  • the coating 42b is opaque.
  • the recesses 50b are filled with translucent silicon dioxide in order to avoid dirt deposits in the recesses 50b.
  • Sensors 20b are arranged between the coating 42b and the base body 40b.
  • the sensors 20b are in the form of touch-sensitive operating elements.
  • the sensors 20b are formed from electrically conductive ink using a printing process. A sensitivity of the sensors 20b can be improved by an arrangement directly under the coating 42b.
  • the coating 43b is arranged continuously, without a recess, on a rear side 45b of the base body 40b, which is opposite the visible side 44b.
  • the coating 43b is arranged in a partial area which is intended to accommodate cooking utensils for heating.
  • Inductive heating elements 60b are arranged in the area of the coating 43b. Due to the electrically insulating properties, the coating 42b protected from being directly influenced by the inductive heating elements 60b.
  • the coatings 42b, 43b have an overlap of 2 cm in order to avoid an unobstructed field of view of the power electronics of the hob 10b. In projection onto the visible side 44b, the coatings 42b, 43b together cover a complete surface.
  • FIG 4 shows another disk unit 12c.
  • the plate unit 12c has a base body 40c with two coatings 42c, 43c.
  • the coatings 42c, 43c are intended to provide a ceramic appearance.
  • the coatings 42c, 43c are formed from different materials.
  • the coating 42c is arranged in the area of a user interface 14c on a rear side 45c of the base body 40c.
  • the coating 43c is continuously arranged on a visible side 44c of the base body 40c in an area under which the inductive heating elements 60c are arranged.
  • the coating 42c has recesses 50c, behind which display elements 30c are arranged.
  • the recesses 50c are free of solid material.
  • the coating 43c has an overlap with the coating 42c.
  • the coating 43c has an edge 46c in a front region. The edge 46c is intended to prevent liquids, in particular things that have boiled over, from getting onto the operating surface 14c from an area that is intended to hold cooking utensils for heating and
  • figure 5 shows a plate unit 12d of a hob 10d with a base body 40d, on the visible side 44d of which a coating 42d is arranged.
  • the coating 42d covers the entire visible side 44d of the base body 40d.
  • the hob 10d also has an operating unit 16d with display elements 30d and sensors 20d, which are designed as touch-sensitive operating elements.
  • the display elements 30d and the sensors 20d are arranged behind a panel 18d.
  • the bezel 18d is made of glass.
  • the panel is formed from a metal, in particular stainless steel and/or aluminum, and/or at least one plastic, in particular Plexiglas.
  • the bezel is formed as a panel unit and has a coating intended to give a ceramic appearance.
  • a coating has a recess that is provided for a display, in particular a LCD display to be screened. It is also not conceivable according to the invention that a recess with at least one large hole, in particular with a diameter of at least 100 ⁇ m, in particular at least 1 mm, advantageously at least 5 mm, can be produced by laser processing, in particular in which a large number of laser processing steps take place directly next to one another.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Baking, Grill, Roasting (AREA)
EP12809353.1A 2011-12-07 2012-11-29 Kochfeld Active EP2788688B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201131984A ES2407409B1 (es) 2011-12-07 2011-12-07 Unidad de placa
PCT/IB2012/056835 WO2013084120A1 (de) 2011-12-07 2012-11-29 Platteneinheit

Publications (2)

Publication Number Publication Date
EP2788688A1 EP2788688A1 (de) 2014-10-15
EP2788688B1 true EP2788688B1 (de) 2022-08-17

Family

ID=47471888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12809353.1A Active EP2788688B1 (de) 2011-12-07 2012-11-29 Kochfeld

Country Status (3)

Country Link
EP (1) EP2788688B1 (es)
ES (1) ES2407409B1 (es)
WO (1) WO2013084120A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2535356B1 (es) * 2013-11-06 2016-02-26 Bsh Electrodomésticos España, S.A. Dispositivo de campo de cocción
EP3031785B1 (de) * 2014-12-12 2018-10-17 Schott AG Verfahren zur herstellung eines glaskeramikelements mit strukturierter beschichtung
ES2574494B1 (es) * 2014-12-19 2017-03-28 Bsh Electrodomésticos España, S.A. Placa de campo de cocción cerámica
DE102015102743A1 (de) * 2015-02-26 2016-09-01 Schott Ag Beschichteter Glas- oder Glaskeramikartikel
EP3210948B1 (de) * 2016-02-29 2019-12-04 Schott Ag Beschichteter glas- oder glaskeramikartikel
DE102016103524A1 (de) * 2016-02-29 2017-08-31 Schott Ag Beschichteter Glas- oder Glaskeramikartikel
DE102017100743A1 (de) * 2017-01-16 2018-07-19 HELLA GmbH & Co. KGaA Verfahren und Vorrichtung zur Herstellung von Freilassungen in der Beschichtung von transparenten Bauteilen einer Beleuchtungseinrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0200089A1 (de) * 1985-04-24 1986-11-05 Siemens Aktiengesellschaft Verfahren zur Bildung von schmalen, metallfreien Streifen in der Metallschicht von Kunststoffolien
EP1061783A2 (de) * 1999-06-14 2000-12-20 Jürgen Dr.-Ing. Schulz-Harder Keramik-Metall-Substrat, insbesondere Mehrfachsubstrat
WO2001015916A1 (en) * 1999-08-31 2001-03-08 Xircom, Inc. Etching of multi-layered coated surfaces to add graphic and text elements to an article
WO2011020721A1 (de) * 2009-08-17 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum herstellen einer hausgeräte-abdeckplatte
WO2011020719A1 (de) * 2009-08-17 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Hausgeräte-abdeckplatte mit einer zumindest semitransparenten trägerplatte, hausgerät zum zubereiten von lebensmitteln und verfahren zum herstellen einer hausgeräte-abdeckplatte

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20106167U1 (de) * 2001-04-07 2001-06-21 Schott Glas, 55122 Mainz Kochfeld mit einer Glaskeramikplatte als Kochfläche
DE10122093B4 (de) * 2001-05-07 2005-03-24 Schott Ag Glas- oder Glaskeramikpaneel
FR2833256B1 (fr) * 2001-12-11 2004-09-17 Snc Eurokera Plaques vitroceramiques, plaques de cuisson les comprenant et leurs procedes de fabrication
DE10206330A1 (de) * 2002-02-14 2003-08-28 Dirk Rueter Verfahren zur Aufbringung von Keramikschichten auf ein Substrat
DE102004053707B8 (de) * 2004-11-03 2008-08-28 Schott Ag Verfahren zur Herstellung eines Glaskeramik-Artikels mit Diffusionsbarriere und Verwendung eines verfahrensgemäß hergestellten Glaskeramik-Artikels
DE102007033338B4 (de) * 2007-07-16 2010-06-02 Schott Ag Hartstoffbeschichteter Glas- oder Glaskeramik-Artikel und Verfahren zu dessen Herstellung sowie Verwendung des Glas- oder Glaskeramik-Artikels
DE102009010952A1 (de) * 2009-02-27 2010-09-09 Schott Ag Beschichtung für den Anzeigebereich von Glas- oder Glaskeramik-Scheiben, Verfahren zur Herstellung einer solchen Beschichtung und deren Verwendung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0200089A1 (de) * 1985-04-24 1986-11-05 Siemens Aktiengesellschaft Verfahren zur Bildung von schmalen, metallfreien Streifen in der Metallschicht von Kunststoffolien
EP1061783A2 (de) * 1999-06-14 2000-12-20 Jürgen Dr.-Ing. Schulz-Harder Keramik-Metall-Substrat, insbesondere Mehrfachsubstrat
WO2001015916A1 (en) * 1999-08-31 2001-03-08 Xircom, Inc. Etching of multi-layered coated surfaces to add graphic and text elements to an article
WO2011020721A1 (de) * 2009-08-17 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum herstellen einer hausgeräte-abdeckplatte
WO2011020719A1 (de) * 2009-08-17 2011-02-24 BSH Bosch und Siemens Hausgeräte GmbH Hausgeräte-abdeckplatte mit einer zumindest semitransparenten trägerplatte, hausgerät zum zubereiten von lebensmitteln und verfahren zum herstellen einer hausgeräte-abdeckplatte

Also Published As

Publication number Publication date
WO2013084120A1 (de) 2013-06-13
ES2407409R1 (es) 2013-10-15
ES2407409B1 (es) 2014-09-02
EP2788688A1 (de) 2014-10-15
ES2407409A2 (es) 2013-06-12

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