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    • 专利摘要:
    The present invention relates to a furniture and / or household equipment, advantageously interactive, comprising: - at least one working plane formed of at least one substrate of monolithic transparent glass material greater than 0.7 m2 surface area, said substrate being in particular mainly or completely bare or provided with coating (s) such that the substrate thus coated has a blur of less than 15% and / or a light transmission TL greater than 60% and / or an opacity indicator of less than 85, - at least one element for heating, - at least one light source, in particular intended to materialize one or more zones or one or more elements or displays of the substrate, this source being in particular at the base of the substrate for a projection display, or under the substrate for a transmission display through the substrate, - at least one communication interface with at least one element of the plane such as the light source (s) and and / or the heating element or elements, and / or, where appropriate, with at least one external element for wireless communication, and possibly an element attached to the substrate or work plane, in particular so that the assembly formed by the substrate or worktop and the insert, has a blur greater than 15%, and / or a TL light transmission of less than 60%, and / or an opacity indicator greater than 85.
    公开号:FR3040769A1
    申请号:FR1558345
    申请日:2015-09-08
    公开日:2017-03-10
    发明作者:Franck Demol；Nicolas Roux；Pablo Vilato
    申请人:Eurokera SNC；
    IPC主号:
    专利说明:

    WORK PLAN IN VITROCERAMIC
    The present invention relates to a worktop, or worktable or countertop or furniture, formed of at least one large plate positioned or intended to be positioned horizontally on one or more support elements (cabinet of a piece of furniture, foot ( s) support (s)) to provide a stable surface for different uses. In particular, the present invention relates to a table or a piece of furniture having a surface or plate capable of simultaneously or successively allowing different activities and / or support of objects, in particular that may allow the cooking or reheating of food in suitable containers. and offer other uses.
    The materials usually used for making worktops are for example wood, quartz, Corian®, etc. For cooking food, there are also large cooking surfaces in kitchens, especially for professional use, these plates are usually metal and / or composite. In particular, there are multilayer panels, based on layers or ceramic materials such as sandstone, layers or aluminum-type metallic materials and layers or insulating plastic materials Bakelite type, these panels generally having a significant thickness (of order of 12 mm for example) and being of complex construction.
    At the same time, hobs made of vitroceramic or reinforced glass type materials, of more limited dimensions (in particular with a surface area generally of less than 0.4 m 2, top surface plates that may be more difficult to obtain by the processes usually used, and which may pose problems in terms of flatness, handling, etc.), exist for uses in particular domestic, the use of glass ceramic material has become widespread in recent years for the cooking plates, due in particular to the performance of this material for this use and attractive appearance of the plates made.
    There are currently different types of glass ceramic plates, each variant being the result of important studies and numerous tests, since it is very difficult to make modifications on these plates and / or on their method of obtaining without risking an adverse effect on the properties sought: to be able to be used as a hob, a glass-ceramic plate must generally have a transmission in the wavelengths of the visible range that is low enough to mask at least a part of the heating elements underlies the rest and high enough that, depending on the case (radiant heating, induction heating, etc.), the user can visually detect the heating elements in working order for safety purposes; it must also have a high transmission in the wavelengths of the infrared range in the case in particular radiant hob plates. The plates thus designed are intended exclusively for use as hobs and are not traditionally intended to receive objects other than heat-resistant utensils used for cooking food, nor intended for exercise other activities than cooking food.
    The present invention has sought to expand the range of existing household equipment products, for domestic or professional use, by developing a new type of interactive products for more varied uses.
    This object has been achieved by the new equipment or article or installation according to the invention, advantageously interactive, this furniture / household equipment comprising: - at least one working plane (or counter or table) formed of at least one substrate (in particular plate or surface or plate), in (or (base) of one or substantially consists of a) glass material (preferably glass-ceramic) transparent (presenting in particular a light transmission greater than 10%) monolithic (or monobloc) or in one piece), advantageously substantially plane, of surface (length by width of its face of greater dimensions) greater than 0.7 m2, said substrate having a TL light transmission greater than 10% and an opacity indicator between 5 and 90, said substrate being in particular (mostly even entirely) bare (uncoated or provided with coating (s) on a limited part of its surface, in particular on less than 10% of its surface) or provided with coating (s) such that the substrate thus coated has a blur of less than 15% and / or a light transmission TL greater than 60% and / or an opacity indicator of less than 85, at least one heating element (in particular under the substrate and hidden by it when this heating element is not in operation / is at rest), - at least one light source, in particular intended to materialize (make visible ) one or more zones (such as the heating zones) or one or more elements or displays (for example a running indicator or a power indicator) of the substrate, this source being in particular in line with the substrate for a projection display, or under the substrate for a transmission display through the substrate, - at least one communication interface with at least one element of the plane (for example with the light source (s) and / or the one or more heating elements), and / or where appropriate with at least one external element (out of the plane), for example with an external module (one unit, one device) for wireless communication, and possibly one element, in particular (essentially) plane, reported to the substrate or work plane, in particular so that the assembly, formed by the substrate (bare or possibly coated) or worktop and the insert, has a blur greater than 15%, and / or a TL light transmission less than 60%, and / or an opacity indicator greater than 85.
    The product developed according to the invention meets the desired purpose, the present invention thus providing a new interactive equipment (allowing in particular the activation of functions such as cooking food, and the display of areas or data) can all as well be used in the kitchen as in another living room, the work plan can be part of a solid furniture or not, a table, a counter, etc., this work plan being mounted or able to be mounted horizontally on (in particular at the top of) one or more support elements (cabinet of a piece of furniture, foot (s) support (s)) in order to offer a stable surface intended for various uses, the worktop or the equipment according to the invention having a continuous upper surface adapted to allow simultaneously or successively activities (such as work, games, reading, etc.), the support of objects (such as papers, computers, vases, dishes, etc. .), and the preparation or cooking or reheating food in suitable containers.
    More generally, the invention also relates to a work surface formed of at least one monolithic transparent glass material substrate with an area greater than 0.7 m 2, said substrate having a TL light transmission of greater than 10% and an opacity indicator between 5 and 90, and being predominantly or entirely bare or provided with coating (s) such that the substrate thus coated has a blur of less than 15% and / or a light transmission TL greater than 60% and / or an indicator of less than 85 opacity, the substrate being optionally coupled to an element attached to the substrate or working plane, in particular so that the assembly, formed by the substrate or worktop and the insert, has a blur greater than 15%, and / or a TL light transmission of less than 60%, and / or an opacity indicator greater than 85, this work plan being intended to equip a piece of furniture or interactive equipment multi-u sages (intended for several uses as listed in the previous paragraph), in particular as defined above according to the invention. The invention also relates to the use of a substrate, in particular a plate, made of a monolithic transparent glass material with a surface area greater than 0.7 m2, said substrate having a TL light transmission of greater than 10% and an indicator of opacity included. between 5 and 90, and being predominantly or entirely bare or provided with coating (s) such (s) that the substrate thus coated has a blur of less than 15% and / or a light transmission TL greater than 60% and / or and a Opacity indicator less than 85, as a multi-purpose interactive work plan, especially as mentioned in the paragraphs above.
    As indicated above, the work surface is formed of a substrate or plate of monolithic glass material (the glass material having been formed in one piece / in one piece, even if the substrate may, if necessary, have recesses, generally used in the already formed part, for aesthetic or functional purposes) of large dimensions, the advantage of such a monolithic plate of large dimensions being in particular to provide a predominantly continuous / uniform surface / without connections, aesthetic and easy maintenance, as well as greater comfort of use and greater safety (in terms of sealing in the event of a liquid spill, etc.), etc. The substrate consists essentially, if not solely, of the glass material, this substrate / glass material possibly being able to be provided with decorative or functional coatings of small thickness (in particular of the order of a few tens of nanometers to a few hundred microns, even more), for example in enamel, paint, thin layers, etc., this or these coatings covering a limited part of its surface, that is to say advantageously less than 10%, in particular less than 5%, especially less of 1%, of its surface, and / or being such that the substrate provided with this coating (s) has a blur of less than 15% and / or a TL light transmission of greater than 60% and / or an opacity indicator of less than 85, as previously specified.
    Unlike the use in vitroceramics in particular, this (substrate) glass material is large, its surface (corresponding to the product of its length by its width for its face of larger dimensions - usually its upper face, intended to be Apparent and serve as support articles (household or work or cooking) being larger than 0.7 m2, preferably greater than 0.9 m2, especially greater than 1 m2, especially greater than or equal to 2 m2. The manufacture of large plates, in the case of glass-ceramics in particular, poses numerous problems with regard to flatness and handling.In the present invention, a plate of large dimensions, having however a good flatness, can nevertheless be advantageously obtained by reducing the speed of passage (or lengthening the arch of ceramization or increasing the residence time in the arch) relative to the speed (or the length of the arch or time standard) usually used to obtain vitroceramic plates of usual dimensions less than 0.4 m2, as explained later in the method according to the invention.
    The substrate / glass material according to the invention is advantageously plane (or predominantly or almost planar), and in particular has a flatness (height between the highest point and the lowest point of the substrate relative to the mean plane of the substrate, with the exception of possible voluntary deformations made on the substrate for aesthetic or functional purposes) less than 0.1% of the diagonal of the substrate, and preferably less than 3 mm, especially less than 2 mm, in particular less than 1 mm. mm, or even of the order of zero, depending on the size / surface / diagonal of the substrate, the flatness being measured using a reference waveform SurFlat sold by the company Visuol. The substrate is generally of geometric shape, in particular rectangular, even square, or even circular or oval, etc., and generally has an "upper" face (visible face) in the use position, another "lower" face (generally hidden , in the frame or cabinet of the furniture incorporating the worktop) in the use position, and a slice (or edge or thickness). The upper face is generally flat and smooth but may also have at least one raised zone and / or at least one hollow zone and / or at least one opening and / or beveled edges (these shapes having been added during manufacture of the substrate, for example by rolling or collapse or pressing, etc., or having been added in recovery), etc., these shape variations advantageously constituting continuous variations of the plate (without changing materials or connections). The lower face may be particularly smooth or provided with pins increasing its mechanical strength and obtained for example by rolling. The thickness of the monolithic substrate made of glass material used is generally at least 2 mm, in particular at least 2.5 mm, in particular is of the order of 3 to 30 mm, and advantageously is less than 15 mm, in particular is of the order of 3 to 15 mm, especially 3 to 10 mm.
    The glass material of the substrate used is advantageously resistant to high temperature and / or has a coefficient of expansion that is zero or almost zero (for example less than 15 × 10 -7 K -1), in particular is advantageously glass-ceramic or reinforced glass ( especially chemically or thermally quenched). Preferably, the substrate is a glass-ceramic substrate and may for example be of the type sold as KeraLite by Eurokera. As defined according to the invention, the glass material is advantageously transparent, in particular has a light transmission TL greater than 10%, and an opacity indicator of between 5 and 90, preferably between 5 and 85. In a advantageous embodiment, it has a light transmission TL of between 10% and 20%; in another advantageous mode, it has a TL light transmission of greater than 60%, in particular greater than 70%.
    The glass-ceramic used can be in particular of composition as described in the patent applications published under the following numbers: WO2013171288, US2010167903, WO2008065166, EP2086895, JP2010510951, EP2086896, WO2008065167, US2010099546, JP2010510952, EP0437228, this glass ceramic being in particular a glass ceramic of lithium aluminosilicate.
    The glass-ceramic can be refined with arsenic (that is to say (mother glass of) composition comprising of the order of 0.2% to 1.5% by weight of arsenic oxide (expressed as AS2O3), or can be unenriched with arsenic (in particular having an arsenic oxide content of less than 0.2%, in particular less than 0.1%, or even zero) or refined with tin or refined with the sulphide (s). ), and can be obtained by rolling or floating.
    The glass material may also be a non-ceramic tempered glass, for example a lithium aluminosilicate hardened and colored in the mass as described in the patent applications published under the following numbers: FR1060677, WO2012080672, or a tempered glass of a other type (soda-lime, borosilicate, etc.), for example as described in the application published under the number WO2012146860.
    The glass-ceramic or tempered glass are obtained by the respective processes described in the aforementioned documents by using the cycles and processing temperatures to obtain the glass material having the selected characteristics given in the definition of the invention. In the case of glass-ceramics, these methods are preferably modified by reducing the rate of passage by at least 25%, preferably by at least 50%, or by increasing the length of the ceramic arch or the residence time. in said arch by at least 25%, preferably at least 50%, respectively, with respect to the speeds, lengths and times normally used, in order to obtain a large planar substrate as required according to the invention, as explained later. The transparent glass-ceramic substrate generally comprises crystals of β-quartz structure within a residual vitreous phase, the absolute value of its coefficient of expansion being advantageously less than or equal to 15 × 10 -7 / ° C., or even 5 × 10 -7 / ° C, this glass ceramic being for example that of the plates marketed under the name KeraLite by the company Eurokera.
    The glass material may optionally also include dyes giving particular colorations to the substrate, for example vanadium oxide, iron oxide, cobalt oxide, cerium oxide, selenium oxide, chromium oxide, or even nickel oxide, copper oxide and / or manganese oxide, etc.
    As indicated in the definition of the invention, the substrate / glass material is bare or provided with a coating as previously defined in the invention, this substrate may be further and optionally coupled to an element attached to the substrate or plane as indicated above, this insert element can be used for example reinforcing, or masking means for masking at least a portion of the underlying elements (heating means in particular), and / or where appropriate may allow to conferring opacity / low transmission and / or blurring suitable for the light transmission display through the substrate or the light projection display on the surface of the screen substrate, as explained later. By coupled is meant that the element modifies the characteristics, for example optical or resistance, of the substrate for use as a worktop or in the equipment according to the invention. By reported, is meant manufactured separately from the substrate (unlike a coating obtained by direct deposition on the substrate), this element can then be combined with the substrate or the work plan by gluing, welding, etc., this element can possibly be find distance from the substrate (for example from one to a few millimeters below), and not affixed to or against or on said substrate.
    The coating, when present on the substrate, may optionally be in the form of at least one layer of enamel or paint or thin layers, on less than 10% of the surface of the substrate or so that the substrate provided with the coating has a blur of less than 15% and / or a TL light transmission of greater than 60% and / or an opacity indicator of less than 85 as previously defined. The insert may be for example a plate or sheet of mica, wood, plywood, laminate, plastic (for example PVB-polyvinyl butyral - or polycarbonate or bakelite, etc.), glass, stone, etc.in particular from 0; 1 to 100 mm thick, and secured to the substrate for example by gluing, rolling, calendering, fixing to the same frame or to the same frame, the insert can be placed against the substrate or remotely (optionally using spacers, etc.), the insert being advantageously coupled to the substrate being under it (in the use position).
    When the insert serves for example as a masking means for masking at least part of the underlying elements and / or provides an opacity and / or a blur conducive to the display by light transmission through the substrate or in the light projection display on the surface of the screen substrate, it is preferably chosen so that the assembly, formed by the substrate (bare or coated as previously defined) or worktop and the added element has a blur greater than 15%, in particular greater than 40%, or even greater than 60%, and / or a TL light transmission of less than 60%, in particular less than 50%, or even less than 30% (this light transmission being in particular non-zero / greater than 0) and / or an opacity indicator greater than 85, preferably greater than 90 (and in particular less than 100) on the essential (in particular at least 80%, even 90% or even 100% ) of its surface, except for any localized decorations or localized components applied to its surface. When the insert is used as reinforcement, it is chosen for example for its good resistance, etc.
    The blur measures the level of light scattering and is defined, in the context of the invention, as the ratio of the diffuse transmission on the total transmission at a wavelength equal to 550 nm, this blur being evaluated for example at using the spectrophotometer with an integrating sphere used for light transmission measurements.
    The TL light transmission is measured according to ISO 9050: 2003 using illuminant D65, and is the total transmission (integrated in the visible range), taking into account both the direct transmission and the possible diffuse transmission. , the measurement being made for example using a spectrophotometer provided with an integrating sphere, the measurement at a given thickness then being converted, if necessary, to the reference thickness of 4 mm according to the ISO 9050: 2003 standard. . The indicator (or factor or coefficient) of opacity Ω is determined in the present invention by the formula Ω = 100 - ΔΕ * and is evaluated by measuring (colorimetry in reflection carried out using a Byk-Gardner Color colorimeter Guide 45/0) the color variation ΔΕ *, corresponding to the difference between the color, measured in reflection on the upper face of the substrate or of the evaluated assembly, for the substrate (respectively the assembly) placed on an opaque black background and that for the substrate (respectively set) placed on an opaque white background (ΔΕ * = ((Ln * -Lb *) 2 + (aN * -aB *) 2 + (bN * -bB *) 2) 1 / 2 according to the formula established in 1976 by the CIE, LB *, aB *, bB * being the colorimetric coordinates of the first measurement on a white background and LN *, aN *, bN * being those of the second measurement on a black background in the color system established in 1976 by the CIE). The assembly formed by the substrate and the optional insert according to the invention allows, where appropriate, a projection display as explained later, in particular, in combination with light sources placed above, to display light areas. to indicate in particular the cooking zones when they are in working condition, and / or where appropriate a display by light transmission by sources placed below, this set masking at the same time the elements placed below (such as heating elements and cables). Conversely, the use of the bare or slightly coated substrate, and not coupled to a partly opacifying effect insert, makes it possible to better see the inside of the equipment (for example the contents of drawers), or to better see display elements placed below (for example a screen for displaying data, information, recipes, etc.).
    As defined above, the article according to the invention also comprises at least one heating element (or heating element), for example one or more radiant or halogen foci or one or more gas burners and / or one or more heating means by induction, these heating means being generally located under the work plan. The work plane of the article according to the invention may comprise one or more heating elements, as well as one or more lights. By the term "fire" is meant a cooking location. The article according to the invention may comprise several types of heating elements or fires (gas fires, radiant, halogen or induction fires). Preferably, the article according to the invention comprises as heating element (s) one or more induction heating means.
    The heating means may be located in a defined area (for example on one end of the substrate) or several areas of the substrate, or may be uniformly distributed under the substrate, occupying for example at least 25% of the surface of the substrate, may even occupy a surface almost equivalent to that of the substrate (for example more than 50%, especially more than 75%, or even more than 85%, or even 100% of the main surface of the substrate), a plurality of small inductors dimensions lining for example the substrate under its underside, to allow heating if necessary in any area.
    The cooking locations on the work surface, directly above the heating means, may be optionally indicated (or not, in the case, for example, of the use of a bare substrate or in the case of a plan provided with heating means covering the entire area), on activation and / or permanently, in particular by means of one or more light sources respectively and / or by means of a fixed decoration, for example enamel. The dimensions of the patterns used to indicate the cooking zones (as well as those of patterns that can indicate other zones or functions) may be more or less important, for example it may be circles delimiting each of the heating elements, or small patterns (triangles, crosses, etc.) in their center or at their base, etc.
    Preferably, the cooking locations (and / or where appropriate other zones and / or elements and / or functions and / or decorations) are indicated by at least one light source as evoked in the definition of the invention. , this source once activated indicating for example the location using a light pattern (including disc type, circle, cross, triangle, etc.) of color and / or fixed or variable dimensions. Alternatively, they can be indicated permanently, by a fixed pattern (in particular round circle type, cross, triangle, etc.), obtained in particular by deposition of layer (s) (in particular such (s) as that (s) used (s) for the decoration of vitroceramics), for example in enamel or paint, on the surface of the plate (in particular on the upper face, or possibly lower depending on the type of coating)).
    In a preferred embodiment, and especially when the assembly formed by the substrate and the optional insert is opaque or very weak light transmission (especially less than 5%), the cooking location (s) (and / or the where appropriate other areas and / or elements and / or functions and / or decorations) are indicated by, and / or highlighted by means of or by means of, at least one light source as evoked in the definition of the invention, on activation of said source, said source being above (in position of use) or on the side of the apparent face of the substrate (or on the side where the display is sought or must be seen ) and allowing a projection light display (direct) on this surface / screen face.
    In another embodiment, for an assembly (formed by the substrate and the optional insert) having a light transmission TL of at least 5%, the cooking location (s) (and / or, if appropriate, other locations). zones and / or elements and / or functions and / or decorations) may (alternatively or alternatively) be indicated by, and / or highlighted by means of or by means of, at least one light source as evoked in the definition of the invention, on activation of said source, said source being placed under the assembly (in the use position) and being hidden by it at rest, said source allowing a transmission light display through the plane working.
    One or more light sources may also allow the display of other elements or functions, for example the display of means or control areas (in the form of buttons, logos, or even keyboards, etc.) or indicators (of intensity / power, time, etc.), which can be activated for example by contact on the surface of the plane (using for example sensors below the surface) or remotely (notably by wireless communication), or even by simple movement of the hand (by sensors or detectors located where appropriate outside and recording the movement, for example by triangulation, to convert it, using in particular a suitable algorithm and interface, in the activation of a function for example), or where appropriate by the laying of a specific object (pan, etc.) at a specific location (such as a cooking zone) of the plate. The light source (s) may also allow the display of sets, or various data (eg display of computer pages, recipes, etc.) downloaded for example by wireless communication using an appropriate interface and projected or transmitted from the light sources on the surface of the plate.
    If necessary, the article according to the invention may comprise several light sources, for the illumination of several zones or for the display of texts or complex decorations, or to homogenize the lighting, these sources being able to be arranged along axes and different illumination angles to achieve the desired effect, without unwanted reflections or shading. In particular in projection lighting on the screen plane, several sources are for example arranged so that the angle between each source (or between each element, for example mirror, sending the light to the work plane) and the normal to the work surface is between 5 and 60 °, preferably between 30 and 45 ° to minimize the effects of shadows projected by a person operating on the worktop.
    The light source or sources may advantageously be formed by light-emitting diodes, for reasons including space, efficiency, durability and resistance to environmental conditions (heat ...), and / or may be other types from sources, for example halogen or incandescent lamps, lasers or liquid crystal displays, the sources possibly being used in combination with lenses or mirrors, etc.
    The diodes are advantageously of chip type (s) semiconductor (s), mineral materials (LED or LED in English), emitting in particular in one direction, and can be encapsulated, that is to say include a semiconductor component conductor and an envelope (eg epoxy or nylon type resin), encapsulating the semiconductor component. These diodes may also be semiconductor chips without collimation lenses, for example of the order of a hundred pm or mm, possibly with a minimal encapsulation (eg protection).
    The diodes may optionally be carried by a support or strip or base, this base may have a surface (flat or inclined) treated and / or made reflective for a better light efficiency, for example coated with a lacquer or paint and / or mirror layer, and / or coupled to a white or metallic reflector to better direct the emitted radiation.
    Where appropriate, organic light-emitting diodes (OLEDs) can also be used, consisting in particular of a superposition of organic semiconductor layers between electrodes, and producing different colors at the pixel following the path of electricity through the organic layers. . The assembly of each source or sources (to the substrate or to a support, for example to a part of the equipment or an external part (associated with said equipment) such as a rail or a device suspended above the plane of work (this device can also include other components such as a hood, the source or sources that can be included in this particular hood)), can be done by welding, clipping, gluing, etc., where appropriate through another element; for example, one can mount diodes, welded on a support itself housed at the bottom of a metal profile, by clipping or gluing the profile. The positioning of the source or sources (with respect to the plate in particular) is adapted to allow a display on the substrate (by projection (especially from above) on the assembly formed by the substrate and the possible insert serving as screen, or through the substrate when the whole is not completely opaque).
    The sources, as well as their power supply and actuation, can be dissociated or not so as to allow simultaneous or individual illumination of the desired lighting zones, as required. Each source can be monochromatic (pure color) or polychromatic (synthetic color).
    By "monochromatic light source" is meant a light source having a single emission peak in the range of visible wavelengths and such that the width of the peak varies from 1 to 100 nm, preferably from 5 to 50 nm.
    By "polychromatic light source" is meant a light source having at least two emission peaks at different wavelengths in the visible wavelength range. The perceived color (by the retina) is then the result of a mixture between the different wavelengths. It can be an LED, and / or an LED display (s), with an emission spectrum having a main emission peak and another emission peak, for example fluorescence, more wide than the main peak, and generally of lower intensity. The polychromatic LED emits in particular according to a first emission (of high or low intensity) of between 400 and 500 nm and according to a second emission (of high or low intensity) in the visible range beyond 500 nm (for example, for example). LEDs formed from at least one electroluminescent crystal and photoluminescent phosphor (s)). It is possible to use as sources white LEDs, polychromatic emission LEDs formed for example from three monochromatic sources of independently regulated intensities of "RGB" type (with three sources: red, green and blue), etc.
    One or more sources may also be integrated in or coupled to or combined with one or more display-type structures (for example with "7-segment" light-emitting diodes or liquid crystal diodes), headband or display screen. electronic control with sensitive keys and digital display (if necessary by wireless communication using an interface), or integrated into another device such as a fume hood as indicated above, etc.
    In addition to the source or sources, the article according to the invention may also comprise at least one waveguide intended to propagate light from one part of the article to the other (in particular by total internal reflection or by reflection metallic), if necessary when the sources are placed under the work plan, each light source then being attached to the guide concerned and cooperating with it by emitting within it its light radiation so that the guide transmits, the one or more light sources emitting / being coupled for example by the edge or edge of the guide. This guide is advantageously clear or transparent, and can be reported (assembled after being designed separately) for example under the underside of the plate. It may be organic and / or plastic (for example polycarbonate or polymethyl methacrylate PMMA), or mineral (for example it may be glass). The article according to the invention may comprise several guides each dedicated to one or more lighting zones, or a unitary guide provided, if appropriate, with openings. The assembly of the guide can be done directly on the substrate or on another part of the equipment or a support, for example can be secured to the box on which rests the work plan. The guide makes it possible, among other things, to better direct the light to the desired lighting zones.
    In the case in particular where one or sources are placed under the work plan, where appropriate associated with at least one waveguide, the equipment may also comprise in the lighting zone, at least one extraction means radiation emitted by the source or sources, for example one or more diffusing elements or treatment (s), in particular a layer added to the surface and / or any differential treatment or texturing of the surface (local or over the entire surface) of the waveguide or extraction surface, such as laser engraving, enamel printing, etching (acid ..) or mechanical (sandblasting ...), etc. An extraction surface may optionally be provided in the thickness of the guide, following for example an internal laser engraving technology. The geometry and roughness of the edge of a waveguide can also be worked to allow local and controlled extraction of light. The extraction means (s) make it possible to extract the radiation from the guide towards the desired lighting zone. They may be combined, if necessary, with another treatment that makes it possible to target the lighting zones, for example with an occulting screen printing (masking certain zones and preventing the passage of light) deposited on a part of a face of the substrate.
    Where appropriate, the equipment may also comprise at least one filter (coupled (in operation) to at least one source, so as to form a colored light zone of chosen color, this filter being positioned generally between the source and the plate and in particular being able to be combined (or joined) to the source and / or to another intermediate element and / or to the plate.
    By "filter" is meant an optical filter (acting on the transmission of light), in particular colored (the action on the transmission of the wavelength being done as a function of the wavelengths), this filter being in particular an element or material, generally plane, in particular in the form of film or layer or composite, based on at least one organic or mineral material, (semi-) transparent (in the sense in particular where it is transparent to certain ) the visible and non-transparent wavelength (s) to / by blocking / affecting other (s)), in particular making it possible to absorb and / or reflect and / or re-transmit certain wavelengths of the visible spectrum. This filter can be in particular an absorption filter (the action on the transmission of light being by absorption at certain wavelengths, the absorbed light being able to be converted into heat and / or emitted at other lengths of wavelength. wave), or a reflection filter (the action on the transmission of light is by reflection at certain wavelengths). The filter can be attached (manufactured separately) and combined with at least one light source and / or other intermediate element, or the work plane, or it can be integrated or made directly on said source and / or said element and / or said plane, for example in the form of a printed layer, for example by ink jet. The radiation emitted by the source passes through the corrective filter in order to produce the desired display on or through the substrate to which this set is combined, the filter being able to make it possible to form different colors. The equipment according to the invention, according to the sources used (and where appropriate the filters used) and their locations, may have one or more light / display areas for functional and / or decorative use, the said zone or zones being able to be in any area of the plate (including heating zones), and there can be several different light / display areas (color, luminance level), and / or each zone may itself have different colors.
    As indicated above, the equipment according to the invention also comprises at least one communication interface with at least one element of the plane (such as the light source (s) and / or the heating element (s)) and / or with a outer element of the plane, for example for wireless communication.
    This communication interface (man-machine or machine-machine in particular) can be a device allowing in particular to control or transmit commands to the heating elements and / or light sources, from or through buttons or buttons of control integrated in the work plane or remote on an outer element advantageously removable or movable, in particular in the case of a control by wireless communication.
    Preferably, the interface allows wireless communication with a unit outside the work plane (this unit can be part of the equipment according to the invention and can itself be an interface), allowing for example the activation to distance from heating zones and / or light sources and / or the control of various functions (increase or decrease in power or heating time, display of data on the work surface, etc.), commands given by the unit the interface to the relevant components of the equipment. The interface may also be a control interface located at the plane (control panel) transmitting the commands by wire or possibly without wires to other components of the plane or out of the plane (for example to the remote sources of the plane for the projection lighting). The outdoor unit in the case of a remote control can be for example in the form of a keyboard, a tablet or a touch screen, a mobile phone, this unit can be fixed (for example fixed on a wall) or mobile (can be placed on the worktop if necessary). This embodiment has the particular advantage of avoiding fingerprints (unsightly and visible on glass materials) on the worktop or cooking zones. Activating the remote controls also reduces the risk of burns by avoiding manipulation of the controls near the cooking zones. In particular for safety concerns, the wireless communication may advantageously be provided to be limited in scope (for example limited to the volume of the room in which the equipment is located) and / or provided with security to prevent inadvertent activation. by a person not present. The wireless communication is carried out in particular by electromagnetic or radio waves, if necessary using Bluetooth, WLAN, wifi, RFID chip type systems, etc. The interface can make it possible to transmit different signals initiated by contact or even by movement to activate different components as already mentioned (for example it can convert a movement, detected by sensors by triangulation, these sensors being connected to this interface (and making part if necessary), by activating a function (for example increasing the heating power, lighting the heating zones, etc.) It can also allow downloading and / or transmission of various data (Such as internet pages, wallpapers, recipes, etc.), these data being for example transmitted to light sources allowing in particular their display on the surface of the work plan.
    At least one interface is generally located on or under the work plane or nearby. The equipment according to the invention can also comprise several interfaces, of the same type or different, allowing for example the activation of different elements, or the equipment can comprise several interfaces, functioning if necessary differently (of different constitution, operating at different frequencies, etc.) to control the same element (for example a heating zone) with a reinforced level of security. Where appropriate, it may be provided in particular an interface for coordinating the activation of the heating zones with the activation of light sources. The interface may be formed of sensor (s), connector (s), control element (s), any other electrical or electronic or electromagnetic component, etc.
    Preferably, the equipment according to the invention comprises at least one communication interface with at least one external element for the activation of different zones and / or functions of the substrate by wireless communication, in particular when the TL light transmission of the substrate is weak.
    In addition to the interface, the equipment or worktop can be provided with different cables, connectors or other elements, including electrical contributing to the transmission of orders from one part to another of the equipment. The equipment, in particular the work surface, according to the invention may also comprise various functional and / or decorative coatings as defined above according to the invention, in particular from those generally used with the glass materials concerned, for example based on enamel, paint, thin layer (s) (eg metallic (s), dielectric (s), etc.), etc. For example, one of the faces of the substrate may comprise one or more layers or one or more enamel patterns, for decorative purposes and / or to signal one or more elements (displays, cooking zones, etc.), and / or or serving as a coloring layer and / or for other functions (as a light extractor or to homogenize lighting, etc.). In particular, the work surface may be provided with a functional layer giving it one or more additional properties such as anti-scratches, mechanical reinforcement, anti-traces, anti-overflow, etc. The coating can be carried out for example by methods such as screen printing, sputtering or pneumatic sputtering, inkjet or enamel, etc., the coating can be applied in particular on the visible face or on the opposite side. , depending on the type of coating and the desired function.
    As indicated above, the decorations (or at least some of them) or displays of the worktop can also be obtained with advantages by illuminated display (rather than by deposition of a coating), in particular by light projection on the plane forming screen, as already mentioned previously.
    The present invention also relates to a method of manufacturing an equipment according to the invention, in particular the working plane of said equipment, when this working plane is formed of at least one glass-ceramic substrate with an area greater than 0.7 m2, in wherein at least one ceramization cycle of a glass plate with a surface area greater than 0.7 m2 is carried out to obtain said substrate, and wherein the passage rate is reduced by at least 25%, preferably by at least 50% , or the length of the ceramic arch or the residence time in said arch is increased by at least 25%, preferably by at least 50%, with respect to speed, length or residence time respectively. optimal or customary to obtain a glass ceramic substrate of less than 0.4 m2 surface area.
    As a reminder, the manufacture of the glass-ceramic plates generally takes place as follows: in a melting furnace, the glass of the chosen composition is melted to form the glass-ceramic, and then the molten glass is rolled into a standard ribbon or sheet by passing the glass melted between rolling rolls and cut the glass ribbon to the desired dimensions. Alternatively to rolling, the glass can be floated, as described for example in the patent application WO2008056080, before being optionally cut. The plates, already cut or not, are then ceramized in a manner known per se, the ceramization of baking the plates according to the thermal profile chosen to transform the glass into the polycrystalline material called "glass-ceramic" whose expansion coefficient is zero or almost -nul and which withstands a thermal shock up to 700 ° C. The ceramization generally comprises a stage of gradual raising of the temperature to the nucleation range, generally located in the vicinity of the glass transformation domain, a step of crossing in several minutes of the nucleation interval, a new progressive elevation of the temperature up to the temperature of the ceramic bearing, the maintenance of the temperature of the ceramic bearing for several minutes and a rapid cooling to room temperature. If necessary, the method also comprises a cutting operation (generally before ceramization), for example by water jet, mechanical tracing with the wheel, etc. followed by a shaping operation (grinding, beveling, ...). The method may also include a rolling or collapsing step to form particular reliefs.
    In the present invention, the vitroceramic follows a ceramization cycle giving it the desired properties, in particular a transparent appearance. Other details and advantageous features will emerge below from the description of a non-limiting embodiment of the invention with reference to the accompanying drawings, in which: FIG. 1 represents a schematic perspective view of a device according to FIG. 'invention; - Figure 2 shows a schematic top view of similar equipment (the utensils on the surface or the underlying elements of furniture not being represented); - Figure 3 shows a schematic side view in which a piece of furniture (23) has been removed to reveal some components of the equipment.
    In this example the equipment (1) according to the invention comprises a cabinet (2) formed of a box (4) surmounted by a work plane (5) formed of at least a glass ceramic substrate of 3.4 m2 of surface, formed of a transparent glass ceramic (monolithic) plate (6), this glass-ceramic plate possibly being coupled to an insert (10) in the form of a 0.75 mm thick mica plate, the glass-ceramic plate being type of that marketed under the reference KeraLite by the company Eurokera, this plate having a smooth upper face and a smooth underside (this face may also be provided with pins) and a thickness of 5 mm, and having a TL light transmission of 87.78 %, and an opacity indicator of 26.83 (the set formed by the substrate and the mica plate having a TL light transmission of 0.01%, and an opacity indicator of 100). The substrate is for example obtained by reducing in the KeraLite glass-ceramic manufacturing process the rate of passage in the ceramization arch by 50%.
    The glass-ceramic substrate obtained has a flatness of less than 2 mm (the flatness obtained being between 2 and 3 mm for a reduced speed of only 25%, and being more than 15 mm for a speed unchanged compared to that used in FIG. aforementioned request for a plate of standard dimensions less than 0.4 m2), the desired flatness for good optical properties and good thermal coupling and efficiency properties in particular, being less than 3 mm, preferably less than 2 mm. The equipment further comprises in the present example three heating elements (7), for example inductors, arranged under the plate (6). These inductors are in this case distributed in the middle of the work surface, but could equally be located at one end of the plane. The equipment also includes three light sources (8), intended to signal the cooking locations and placed above the substrate (and overhanging the worktop). These sources make it possible to indicate the cooking locations, for example using a disc or a colored circle of light (9) delimiting each location (the colors possibly being identical or different depending on the locations) and surrounding the inductors, when these sources are activated, or even when the heating elements are activated if the sources are connected to these elements by an appropriate interface. The sources (8) are formed for example of a plurality of LEDs carried by a base housed in a profile, and are for example integrated in a hood (14) overhanging the work plane. These sources, besides the signaling of the heating zones, can also alternatively be used for lighting (local or total) of the worktop, or for displaying by projection of various information, such as the display of data, of recipes cooking (11), etc. The equipment further comprises at least one communication interface (12) (concealed by the substrate) with the heating elements, and optionally with the light sources, this interface also communicating wirelessly with an outdoor unit in form, by example, a touch pad (13) for activating different areas and functions of the plate or equipment. The outdoor unit can be advantageously movable and rest on the work plane (Figure 1) or used for remote activation (Figure 3) of different areas or functions. Alternatively or cumulatively, the interface could also include or be connected to a fixed control panel located on the surface of the substrate (2) for the activation of different zones and functions, in particular of the substrate. The equipment also comprises other elements, including electrical cables (15) for the activation of the heating elements and for the activation of the sources, and includes drawers (16) or cupboards (17) arranged in the supporting box. the work plan, for storage of various items, etc. The equipment may also include other elements, for example the worktop may include a frame, the substrate may be coated with a decoration, for example enamel, the box may be full or have different recesses (such as recess (18), or integrate other elements (eg a built-in oven, etc.) The worktop (5) can be used for different purposes, such as writing (as symbolized by paper and pen (19)), the support of objects (as symbolized by the dishes (20)) while allowing the cooking of food (as symbolized by the cooking vessels (21)), etc. Where appropriate, the box can also be replaced by support feet (eg only the walls 22 and 23, or four feet at the four corners, the equipment under the work plan in this case being preferably hidden by a formwork located a few centimeters thick under the substrate) in the image of a ta The equipment according to the invention can in particular be used with advantages to achieve a new range of multi-purpose and interactive furniture including areas or a cooking function.
    权利要求:
    Claims (19)
    [1" id="c-fr-0001]
    1. Furniture and / or household equipment comprising: at least one working plane formed of at least one monolithic transparent glass-material substrate having an area greater than 0.7 m2, said substrate having a light transmission T1 greater than 10% and an indicator of opacity between 5 and 90, said substrate being predominantly or entirely bare or provided with coating (s) tei (s) that the substrate thus coated has a blur of less than 15% and / or a light transmission Tl greater than 60% and / or an opacity indicator of less than 85, - at least one heating element, - at least one light source, - at least one communication interface with at least one element of the plane such as the light source (s) and / or the or the heating elements, and / or where appropriate with at least one external element for wireless communication, and possibly an element attached to the substrate or work plane, so that the assembly, formed by the substrate or worktop and the insert, has a blur greater than 15%, and / or a light transmission T1 less than 60%, and / or an opacity indicator greater than 85.
    [2" id="c-fr-0002]
    2. Equipment according to claim 1, characterized in that the surface of the glass material substrate is greater than 0.9 m2, the thickness of said substrate being at least 2 mm.
    [3" id="c-fr-0003]
    3. Equipment according to one of claims 1 or 2, characterized in that the substrate has a flatness less than 0.1% of the diagonal of the substrate.
    [4" id="c-fr-0004]
    4. Equipment according to one of claims 1 to 3, characterized in that the substrate is tempered glass or glass ceramic.
    [5" id="c-fr-0005]
    5. Equipment according to one of claims 1 to 4, characterized in that the glass material has a light transmission TL of between 10% and 20% or greater than 60%,
    [6" id="c-fr-0006]
    6. Equipment according to one of claims 1 to 5, characterized in that the glass material comprises dyes.
    [7" id="c-fr-0007]
    7. Equipment according to one of claims 1 to 6, characterized in that the equipment comprises as heating element (s) one or more induction heating means, the or heating elements can be located in one or more areas of the substrate, or be evenly distributed under the substrate.
    [8" id="c-fr-0008]
    8. Equipment according to one of claims 1 to 7, characterized in that at least the cooking locations on the work plane above the heating means or other areas or elements or functions or decorations, are signalfejs, on activation and / or permanently, by means of one or more light sources and / or by means of a fixed decoration.
    [9" id="c-fr-0009]
    9. Equipment according to claim 8, characterized in that at least one or more cooking locations or other zones or elements or functions or decorations are indicated by, and / or highlighted (s). by means of, at least one light source, on activation of said source, said source being placed above the substrate or on the side of the apparent face of the substrate or on the side where the display is sought or to be seen, and allowing a luminous display by projection on this screen face.
    [10" id="c-fr-0010]
    10. Equipment according to claim 8, characterized in that at least the cooking location (s) or other zones or elements or functions or decorations are indicated by, and / or highlighted (s). by means of, at least one light source, on activation of said source, said source being placed under the substrate, said source allowing a transmission light display through the working plane.
    [11" id="c-fr-0011]
    Equipment according to one of Claims 1 to 10, characterized in that the light source (s) or other component (s) can be activated by contact on the surface of the plane and / or on the interface and / or on an outdoor unit, or by movement.
    [12" id="c-fr-0012]
    12. Equipment according to one of claims 1 to 11, characterized in that the equipment comprises several light sources, arranged so that the angle between each source, or between each element sending light to the working plane, and the normal to the work surface, between 5 and 60 °, to minimize the shadow effects projected by a person working on the worktop.
    [13" id="c-fr-0013]
    13. Equipment according to one of claims 1 to 12, characterized in that the P'interface allows wireless communication, allowing remote activation of the heating zones and / or light sources and / or the control of different functions.
    [14" id="c-fr-0014]
    14. Equipment according to one of claims 1 to 13, characterized in that the interface makes it possible to transmit different signals initiated by contact or movement to activate different components and / or allows the downloading and / or transmission of data, these data may possibly be transmitted to light sources allowing their display on the surface of the work plan.
    [15" id="c-fr-0015]
    15. Equipment according to one of claims 1 to 14, characterized in that the equipment comprises one or more interfaces, of the same type or different, for controlling one or more elements, or if necessary to coordinate the activation heating zones with the activation of light sources.
    [16" id="c-fr-0016]
    16. Equipment according to one of claims 1 to 15, characterized in that the worktop comprises at least one insert, in the form of a plate of mica, wood, plywood, laminate, plastic, glass or stone.
    [17" id="c-fr-0017]
    17. Equipment according to one of claims 1 to 16, characterized in that the work plane is mounted on at least one or support elements, thus forming with said support elements a table, a piece of furniture, solid or not, or a counter.
    [18" id="c-fr-0018]
    18. Work plane formed by at least one substrate made of monolithic transparent glass material with a surface area greater than 0.7 m2, said substrate having a TL light transmission of greater than 10% and an opacity indicator of between 5 and 90, said substrate being predominantly or entirely bare or coated (s) so that the substrate thus coated has a blur of less than 15% and / or a TL light transmission of greater than 60% and / or an opacity indicator of less than 85% , this work plan being intended to equip a furniture or interactive equipment multi-used.
    [19" id="c-fr-0019]
    19. Use of a monolithic transparent glass-material substrate having a surface area greater than 0.7 m2, said substrate having a light transmission greater than 10% and an opacity indicator of between 5 and 90, said substrate being predominantly or entirely naked or provided with coating (s) such that the substrate thus coated has a blur of less than 15% and / or a light transmission T1 greater than 60% and / or an opacity indicator of less than 85, as a work surface according to claim 18, where appropriate in equipment according to one of claims 1 to 17.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3117150A1|2017-01-18|Glass-ceramic worktop of large size
    EP3117151A1|2017-01-18|Glass-ceramic worktop of large size
    WO2015136204A1|2015-09-17|Glass-ceramic worktop of large size
    EP3346878A1|2018-07-18|Glass-ceramic worktop
    EP3346876B1|2021-01-13|Interactive furniture and/or interactive household equipment
    WO2017042475A1|2017-03-16|Glass ceramic worktop
    EP3347316A1|2018-07-18|Glass ceramic worktop
    WO2017042470A1|2017-03-16|Glass ceramic worktop
    WO2017042472A1|2017-03-16|Glass ceramic worktop
    EP3346879A1|2018-07-18|Glass ceramic worktop
    WO2017042478A1|2017-03-16|Glass ceramic worktop
    EP3346873A1|2018-07-18|Glass ceramic worktop
    同族专利:
    公开号 | 公开日
    EP3346878A1|2018-07-18|
    US10595631B2|2020-03-24|
    CN107920661A|2018-04-17|
    CN107920661B|2020-11-27|
    JP2018529069A|2018-10-04|
    DE202016008271U1|2017-06-06|
    US20190246788A1|2019-08-15|
    FR3040769B1|2018-07-27|
    WO2017042476A1|2017-03-16|
    KR20180051511A|2018-05-16|
    JP3236383U|2022-02-16|
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    DE102020208221A1|2020-07-01|2022-01-05|E.G.O. Elektro-Gerätebau GmbH|Hob and method of operating a hob and using a hob to illuminate a room|
    法律状态:
    2016-09-22| PLFP| Fee payment|Year of fee payment: 2 |
    2017-03-10| PLSC| Publication of the preliminary search report|Effective date: 20170310 |
    2017-09-19| PLFP| Fee payment|Year of fee payment: 3 |
    2018-09-18| PLFP| Fee payment|Year of fee payment: 4 |
    2019-09-25| PLFP| Fee payment|Year of fee payment: 5 |
    2020-09-30| PLFP| Fee payment|Year of fee payment: 6 |
    2021-09-30| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1558345A|FR3040769B1|2015-09-08|2015-09-08|WORK PLAN IN VITROCERAMIC|FR1558345A| FR3040769B1|2015-09-08|2015-09-08|WORK PLAN IN VITROCERAMIC|
    EP16775796.2A| EP3346878A1|2015-09-08|2016-09-06|Glass-ceramic worktop|
    PCT/FR2016/052215| WO2017042476A1|2015-09-08|2016-09-06|Glass-ceramic worktop|
    US15/757,802| US10595631B2|2015-09-08|2016-09-06|Glass-ceramic worktop|
    JP2018512415A| JP2018529069A|2015-09-08|2016-09-06|Glass ceramic work top|
    KR1020187006302A| KR20180051511A|2015-09-08|2016-09-06|Glass-ceramic countertops|
    CN201680052069.6A| CN107920661B|2015-09-08|2016-09-06|Glass ceramic working platform|
    DE202016008271.0U| DE202016008271U1|2015-09-08|2016-09-06|Ceramic work surface|
    JP2021003332U| JP3236383U|2015-09-08|2021-08-27|Furniture or household equipment, worktops, and substrates|
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