• 专利附录
  • 专利说明
  • 权利要求
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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 by at least one substrate of monolithic glass material greater than 0.7 m2 surface area, said substrate having a brightness L * superior at 10, a light transmission TL less than 50%, an opacity indicator greater than 90, and if necessary a blur greater than 15%, - at least one heating element, - at least one light source, in particular intended to materialize one or more zones or one or more elements or displays of the substrate, in particular by projection, this source being located for example at the substrate, - at least one communication interface with at least one element of the plane such that the light source (s) and / or the heating element (s), and / or where appropriate with at least one external element for wireless communication.
    公开号:FR3018171A1
    申请号:FR1451943
    申请日:2014-03-10
    公开日:2015-09-11
    发明作者:Bertrand Charpentier；Javier Fernandez；Michel Lismonde；Michael Ravel；Nicolas Roux；Pablo Vilato；Scott Wayne Watson
    申请人:Eurokera SNC；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a worktop, or worktable or counter or piece of furniture, formed of at least one large plate positioned or intended to be positioned horizontally on one or more support elements (housing). 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.
    [0002] 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 (based on) one or substantially consisting of a monolithic (or monoblock or one-piece) glass material, advantageously substantially plane, of surface (length by width of its larger face) greater than 0.7 m2, said substrate having a brightness L * greater than 10, a light transmission TL less than 50%, an opacity indicator greater than 90, and if necessary a blur greater than 15% at least one heating element (in particular under the substrate and concealed by the latter when this heating element is not in operation / is at rest), at least one light source, in particular intended for matting performing (making 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, in particular by light transmission through the substrate, in particular by projection, this source being for example in line with 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 element (s) for heating), 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. 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 cooking or resetting blowing food in suitable containers. More generally, the invention also relates to a work surface formed of at least one substrate of monolithic glass material with an area greater than 0.7 m2, said substrate having a brightness L * greater than 10, a light transmission TL less than 50%, an opacity indicator greater than 90, and if necessary a blur greater than 15%, this work plan being intended to equip a piece of furniture or interactive equipment multi-purpose, 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 monolithic glass material, having a surface greater than 0.7 m2 in glass material, said substrate having a luminosity L * greater than 10, a TL light transmission less than 50%, an opacity indicator greater than 90, and if necessary a blur greater than 15%, as an interactive multi-purpose work plan, in particular as mentioned in the above paragraphs. 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., as specified later.
    [0003] 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 generally its upper face, intended to be apparent and to 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, in particular greater than or equal to 2 m2. large plates, in the case of the glass-ceramic in particular, poses many problems in terms of flatness and handling.In the present invention, a large plate, however having a good flatness, can nevertheless be advantageously obtained by reducing the speed passing (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.
    [0004] 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 (in particular tempered glass). chemically or thermally). Preferably, the substrate is a glass-ceramic substrate. As defined according to the invention, the substrate is advantageously opaque and / or little transmissive, while being diffusing and sufficiently clear (the clarity being given by the brightness L *), the glass material being in particular colored or tinted in the mass ( this coloring includes white and all colors of brightness L * greater than 10, darker colors such as black or dark brown being excluded), as specified below. The glass-ceramic used can be in particular of composition as described in the patent applications published under the following numbers: EP 1300372, US6706653, WO9906334, WO2007113242, EP 1840093, US2007213192, US7476633, JP2009531261, WO2012156444, WO2012001300, DE202012011811, this glass ceramic being in particularly a lithium aluminosilicate glass ceramic and also advantageously comprising dyes.
    [0005] For example, it is advantageous to use a glass-ceramic comprising the following constituents and / or obtained by ceramizing from a glass of the following composition, within the following limits expressed in percentages by weight: SiO 2: 52-75%; A1203: 18-27%; Li2O: 2.5-5.5%; K2O: 0 - 3%; Na2O: 0 - 3%; ZnO: 0 - 4%; MgO: 0-5%; CaO: 0 - 2.5%; BaO: 0 - 3.5%; SrO: 0 - 2%; TiO2: 0-5.5%; ZrO2: 0 - 3%; P2O5: 0-8%, B2O3: 0-5%, and preferably, within the limits hereinafter expressed in percentages by weight: SiO2: 55-70%; A1203: 18-24%; Li2O: 2.5 - 4.5%; K2O: 0 - 2.0%; Na2O: 0 2.0%; ZnO: 1.5 - 4%; MgO: 0.20 - 5%; CaO: 0 - 1%; BaO: 0 - 3%; SrO: 0.4%; TiO2: 1.8-5%; ZrO 2: 0-2.5%, P2O5: 0-8%, B2O3: 0-5%, this composition also possibly including additional dyes. The glass-ceramic may 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 As203), or may be unrefined with arsenic (in particular having an oxides of arsenic content of less than 0.2%, in particular less than 0.1%, or even zero) / refined with tin.The glass material may also be a glass quenched non-ceramized, for example a lithium aluminosilicate quenched and colored in the mass as described in the application filed in France under the number 1260354, or a tempered glass of another type (soda-lime, borosilicate, etc.), The glass-ceramic or tempered glass is obtained by the respective processes described in the aforementioned documents by using the cycles and processing temperatures which make it possible to obtain the glass material having the selected characteristics given in FIG. In the case of glass-ceramics, these methods are preferably modified by reducing the rate of flow 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%, with respect to the speeds, lengths and times normally used, in order to obtain a large planar substrate such as required according to the invention, as explained later. As defined according to the invention, the substrate forming the work plane is selected so as to have a brightness L * greater than 10, preferably greater than 15, (especially greater than 30), if appropriate (for a TL non-zero / a non-opaque substrate) a blur greater than 15%, in particular greater than 20%, or even greater than 40%, or even greater than 80%, a light transmission TL less than 50%, in particular less than 32% this light transmission can optionally be zero in the case of a completely opaque glass material, and an opacity indicator greater than 90, preferably greater than 95 (this indicator being less than or equal to 100). The substrate has these characteristics on the essential (especially at least 80% or even 100%) of its surface, with the exception of any localized decorations (for example enamel) or localized components applied to its surface. These properties are generally those of the glass material forming the substrate itself, without the presence of any coating, but where appropriate can result from the combination of the glass material and a coating applied to the bulk of the glass. one and / or the other of its main faces. Advantageously, these are the intrinsic characteristics of the glass material substrate, that is to say that said glass material substrate has these characteristics in itself without the presence of any coating.
    [0006] The brightness L * is a component defined in the CIE colorimetric system and is evaluated in a known manner, in particular using a Byk-Gardner Color Guide 45/0 colorimeter (reflection colorimetry) on the upper face of the substrate placed on opaque white background.
    [0007] 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, this blur being evaluated for a non-zero light transmission / a non-opaque glass substrate. The light transmission is measured according to ISO 9050: 2003 using illuminant D65, and is the total transmission (integrated in the visible range, at the wavelength of 950 nm), 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 being then converted, if necessary, to the reference thickness of 4 mm according to ISO 9050: 2003. The indicator (or factor or coefficient) of opacity S2 is determined in the present invention by the formula S2 = 100 - DE * and is evaluated by measuring (colorimetry in reflection carried out using a Byk-Gardner Color colorimeter Guide 45/0) the color variation DE *, corresponding to the difference between the color, measured in reflection on the upper face of the substrate, for the substrate placed on an opaque white background and that for the substrate placed on an opaque black background = (LN.k_LB *) 2 (aN.k_aB *) 2 (bN.k_be) 2,)% 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 colorimetric system established in 1976 by the CIE). The substrate according to the invention as defined above is in particular of opaque color (and / or little transmissive) relatively light and diffusing, in particular is colored or tinted in the mass, this color including white and all colors of brightness L * greater than 10, darker colors such as black or dark brown being excluded, this material allowing inter alia a projection display as explained later, in particular allowing, in combination with light sources placed above , to display light areas to indicate in particular the cooking zones when they are in working condition, this material masking at the same time the elements placed below (such as heating elements and cables). Advantageously, the glass material forming the substrate is translucent or opaque (it has in particular a TL light transmission less than 50%, in particular less than 32%); it may be in particular of white, cream or even gray, violet, or of another color (with the exception of black and dark brown), translucent or opaque.
    [0008] The substrate is preferably based on a translucent or opaque white or cream glass ceramic generally comprising crystals of p-spodumene structure within a residual vitreous phase, the absolute value of its expansion coefficient being in particular of the order of 10.10-7 / ° C at 15.10-7 / ° C, and having the characteristics mentioned above, such as the glass-ceramic plates sold under the name Kerawhite, KeraWhite TC or Kerabiscuit by the company Eurokera. The substrate or glass material may optionally comprise dyes giving particular colorations (for example violet, green, gray, etc.) at levels of preference of less than 10% by weight, 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. Alternatively or jointly, the glass material may also be provided with a coating conferring a coloring different from its own coloring (or intrinsic coloration), for example may be provided with at least one layer of paint on at least a part or l essential or all of one of its main faces (in particular the lower face), for example at least one layer of paint of pistachio, gray, blue, yellow, red, and so on. The paint used preferably has a thermal withstand greater than 350 ° C. (generally between 350 ° C. and 500 ° C.), and is for example based on silicone resin (s), in particular alkyd resin (s). (s) silicone (s) (that is to say one or more silicone resins modified by the incorporation of resin (s) alkyd (s)), maybe even based on other resins such as epoxy or polyurethane, for uses at low temperatures below 200 ° C, this paint comprising for example pigments, preferably pigments for enamels (in proportions not exceeding 50% by weight) depending on the desired color. Other coatings may also be used (for this purpose or for other reasons, for example for decorative reasons), for example enamel, thin layers, as indicated later. 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 and hidden by it at rest. 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 zone (for example on one end of the plate) or several zones of the substrate, or may be uniformly distributed under the substrate, occupying for example at least 25% of the surface of the substrate. , or may 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 inductors of small 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 indicated (or not, in the case for example of a plan provided with heating means covering the whole of its 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.
    [0009] 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 glass-ceramics), for example in enamel, on the surface of the plate (in particular on the upper face).
    [0010] In a preferred embodiment, and especially when the substrate is opaque or has a very low light transmission (less than 32%, in particular less than 10% or even 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. The substrate defined according to the invention is particularly suitable for such a type of display. In another embodiment, for a substrate having a light transmission TL of at least 5%, the cooking location (s) (and / or, where appropriate, other 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 substrate (in the use position) and being hidden by it at rest, said source allowing a transmission light display through the work plane. 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 located where appropriate outside and recording the movement, for example by triangulation, to convert it, in particular by means of an appropriate algorithm and interface, into 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.
    [0011] 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 level following the path of electricity through the organic layers. . The assembly of each source or sources (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 work surface (this device that can also include other components such as a hood, the source or sources that can be included in particular in this hood), or where appropriate to the substrate), 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 (advantageously by projection (especially from above) on the plate serving as a screen, or possibly through the glass-ceramic when the substrate 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 peak width 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, wider than the main peak, and generally of lower intensity. In particular, the polychromatic LED emits in a first emission (of high or low intensity) of between 400 and 500 nm and in a second emission (of high or low intensity) in the visible range beyond 500 nm (case by example of LEDs formed of 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 intensities independently regulated of the "RGB" type (with three sources: red, green and blue), etc. One or more sources may also be integrated into or coupled with or combined with one or more display-type structure (s) (for example with so-called "7-segment" electroluminescent diodes or liquid crystal diodes), 30 headband or screen electronic control system 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 the light from one part to the other of the article (in particular by total internal reflection or by metallic reflection), if appropriate 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 its light radiation within it so that the guide transmits it e, the light source (s) emitting / being coupled for example by the slice 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.
    [0012] 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 it can in particular be combined (or secured) to the source and / or to another intermediate element and / or, where appropriate, to the plate. "Filter" is understood to mean an optical filter (acting on the transmission of light), in colored lens (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 a film or layer or composite, with base of at least one organic or mineral material, (semi-) transparent (in the sense in particular where it is transparent at certain (s) length (s) of the visible wave and not transparent to / by blocking / affecting d other (s)), in particular r allowing to absorb and / or reflect and / or re-emit 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 by reflection (the action on the transmission of light is by reflection at certain wavelengths). The filter may be attached (manufactured separately) and combined with at least one light source and / or other intermediate element, or even the work plane, or it may be integrated or made directly on said source and / or said element and / or 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 correction filter to produce the desired display on or through the substrate to which this set is combined. The filter may make it possible to form different colors, for example at least one colored zone of white color or of a synthetic color obtained by a mixture at several wavelengths. 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.
    [0013] 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.
    [0014] 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. 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, etc. type systems.
    [0015] 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.
    [0016] 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 low (especially less than 10%). In addition to the interface, the equipment or worktop can be provided with 5 different cables, connectors or other elements, including electrical contributing to the transmission of commands from one part to another of the equipment. The equipment, in particular the worktop, according to the invention may also comprise various functional and / or decorative coatings, in particular 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 indicate one or more elements (displays, cooking zones, etc.), and / or serving as a coloring layer (as seen above) or masking (to avoid for example the direct vision of the sources, this masking is not however necessary with the substrates selected according to the invention), and / or for others functions (as 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-scratch, mechanical reinforcement, etc. The coating may be carried out for example by processes such as screen printing. , sputter deposition, inkjet or enamel, etc., the coating may be applied in particular on the apparent face or on the opposite side, depending on the type of coating and the desired function. For example, in the case of enamel decoration, it is preferentially deposited on the upper face for visibility reasons in particular, while an enamel or paint coloring layer is preferably deposited on the opposite non-visible face for a better protection against abrasion, etc.
    [0017] As indicated above, the decorations (or at least part of them) or worktop displays can also be obtained with advantages by means of a light display (rather than by depositing a coating), in particular by projecting light onto the screen plane, as already mentioned above. 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. The plates thus cut 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 zero and which withstands 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 glass ceramic follows a ceramization cycle giving it the desired properties, in particular a relatively clear and diffusing translucent or opaque 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 one monolithic substrate (6) glass-ceramic of 2 m2 of surface. This substrate is, for example, a translucent white-colored plate of the type marketed under the reference KeraWhite by Eurokera, this plate having a smooth upper face and a smooth lower face (this face may also be provided with pins) and a thickness of 4 mm, and having a brightness L * of 81.51, a blur of 96.9%, a TL light transmission of 19.4%, and an opacity indicator of 96.9. This substrate is for example obtained by proceeding as in patent application WO9906334 but reducing the rate of passage in the ceramization arch of 50%. This substrate may optionally be colored also or provided with a resin layer on its underside to give a color to the substrate, for example to be provided with a layer of silicone resin paint giving a gray color, the worktop (coated substrate) thus having a brightness L * of 79.45, a blur of 100%, a TL light transmission of 1.53%, and an opacity indicator of 99.94, this layer having been applied to the glass-ceramic substrate after its production. Alternatively, this substrate may also be for example a translucent cream-colored plate of the type marketed under the reference KeraBiscuit 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 4 mm, having a brightness L * of 81.76, a blur of 95.4%, a TL light transmission of 29.17%, and an opacity indicator of 98.5. In both cases, 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 an unchanged speed relative to to the one used in the aforementioned application to obtain a plate of standard dimensions less than 0.4 m2), the desired flatness for good optical properties and good properties of thermal coupling and efficiency, 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) and fixed on a support (10). 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 work plan may include a frame, the substrate may be coated with a permanent decoration, localized or not, for example enamel, the box may be full or have different recesses (such as the 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 the paper and the 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. The case optionally, the box can also be replaced by support feet (for example 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 s ubstrat) in the image of a table The equipment according to the invention can in particular be used with advantages to produce a new range of multi-purpose furniture and interactive incorporating particular areas or a cooking function.
    权利要求:
    Claims (20)
    [0001]
    REVENDICATIONS1. Furniture and / or household equipment, advantageously interactive, comprising: at least one working plane formed of at least one substrate of monolithic glass material with an area greater than 0.7 m2, said substrate having a brightness L * greater than 10, a transmission luminous TL less than 50%, an opacity indicator greater than 90, and if necessary a blur greater than 15%, - at least one heating element, - at least one light source, in particular intended to materialize a io or zones or one or more elements or displays of the substrate, in particular by projection, this source being located for example at the base of the substrate, - at least one communication interface with at least one element of the plane such as the source or sources and / or the heating element (s), and / or where appropriate with at least one external element for wireless communication.
    [0002]
    2. Equipment according to claim 1, characterized in that the surface of the glass material substrate is greater than 0.9 m 2, especially greater than 1 m 2, in particular at least 2 m 2, the thickness of said substrate being at least 2 m 2. mm, in particular of 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. mm ..
    [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, and preferably less than 3 mm, especially less than 2 mm, in particular Less than 1 mm, or even of the order of zero.
    [0004]
    4. Equipment according to one of claims 1 to 3, characterized in that the substrate is tempered glass or glass-ceramic, and preferably is glass-ceramic.
    [0005]
    5. Equipment according to one of claims 1 to 4, characterized in that the substrate is opaque and / or little transmissive and is colored or stained in the mass, this color including white and any color brightness L * greater than 10, the darker colors such as black or dark brown being excluded, and preferably has a brightness L * greater than 15, in particular greater than 30 and / or where appropriate a blur greater than 20%, or even greater than 40% , or even greater than 80% and / or a TL light transmission of less than 32%, and / or an opacity indicator greater than 95 and less than or equal to 100, the glass material substrate advantageously having these characteristics intrinsically, the glass forming material forming the substrate being advantageously translucent or opaque.
    [0006]
    6. Equipment according to one of claims 1 to 5, characterized in that the substrate or the glass material comprises dyes and / or is provided with a coating conferring a different color of its own color.
    [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 heating element (s) can be located in one or more several regions of the substrate, or be uniformly distributed under the substrate, occupying for example at least 25% of the surface of the substrate, or occupy more than 50%, especially more than 75%, or even more than 85%, of the surface area of the substrate. substrate.
    [0008]
    8. Equipment according to one of claims 1 to 7, characterized in that the cooking locations on the work plane, above the heating means, and / or other zones and / or elements and / or Functions and / or decorations are indicated, on activation and / or permanently, by means of one or more light sources and / or by means of a fixed decoration, for example enamel.
    [0009]
    9. Equipment according to claim 8, characterized in that the or cooking locations and / or other areas and / or elements and / or functions and / or decorations are indicated by, and / or highlighted or by means of of at least one light source upon activation of said source, said source being placed above the substrate or on the apparent side of the substrate or side where the display is sought or to be seen, and allowing projection light display on this screen side. said source being in particular placed under the substrate and allowing a light display by transmission through the work plane. 30
    [0010]
    Equipment according to claim 8, characterized in that the substrate has a light transmission TL of at least 5%, and the cooking location (s) and / or other areas and / or elements and / or functions and / or or decorations are indicated by, and / or highlighted or by means of, at least one light source, on activation of said source, said source being placed under the substrate and being hidden by it at rest, said source allowing a display light transmission through the work plan.
    [0011]
    11. Equipment according to one of claims 1 to 10, characterized in that the light source (s) or other component (s) are activatable by contact on the surface of the plane and / or on the interface and / or on an outdoor unit, or by movement, including the hand.
    [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 work plane, and the normal to the work plane is between 5 and 60 °, preferably between 30 and 45 °, to minimize the shadow effects projected by a person operating on the worktop.
    [0013]
    13. Equipment according to one of claims 1 to 12, characterized in that "interface allows wireless communication, in particular with a unit 15 outside the work plane, allowing for example the remote activation of the heating zones and / or light sources and / or the control of different functions, the outdoor unit being for example in the form of a keyboard, a tablet or a touch screen or a mobile phone, this unit can be fixed or mobile, the wireless communication being for example limited range, for example limited to the volume of the room in which the equipment is located.
    [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 such as data. Internet pages, wallpapers or cooking recipes, such data being for example transmitted to light sources allowing in particular their display on the surface of the work plan.
    [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, 30 to control one or more elements, or for example to coordinate the activation heating zones with the activation of light sources.
    [0016]
    16. Equipment according to one of claims 1 to 15, characterized in that the work plane comprises one or more functional and / or decorative coatings, for example based on enamel or paint or thin layer (s). ).
    [0017]
    17. Equipment according to one of claims 1 to 16, characterized in that the work plane is mounted, in particular horizontally, on at least one or support elements, such as a cabinet of a piece of furniture or one or more feet 5 supports, thus forming with said support elements a table, a piece of furniture, full or not, or a counter.
    [0018]
    18. Work plane formed by at least one substrate made of monolithic glass material having an area greater than 0.7 m 2, said substrate having a brightness L * greater than 10, a light transmission TL less than 50%, a higher opacity indicator at 90, and if necessary a blur greater than 15%, this work plan being intended to equip a piece of furniture or interactive multi-purpose equipment according to one of claims 1 to 17.
    [0019]
    19. Use of a substrate, in particular a plate, made of monolithic glass material having an area greater than 0.7 m 2, said substrate having a luminosity L * greater than 10, a light transmission TL less than 50%, an indicator of opacity higher than 90, and where appropriate a blur greater than 15%, as an interactive multi-use work surface in equipment according to one of claims 1 to 17.
    [0020]
    20. A method of manufacturing equipment according to one of claims 1 to 17 or a worktop according to one of claims 18 or 19, the worktop being formed of at least one glass-ceramic substrate with a surface area greater than 0.7 m2, in which at least one ceramization cycle is carried out with a glass plate with a surface area greater than 0.7 m2 to obtain said substrate, and according to which the rate of passage is reduced by at least 25%, preferably 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 optimum or usual speed, length or residence time to obtain a glass-ceramic substrate having a surface area of less than 0.4 m2.
    类似技术:
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    同族专利:
    公开号 | 公开日
    US10794600B2|2020-10-06|
    EP3117150A1|2017-01-18|
    CN106068423A|2016-11-02|
    KR20160131016A|2016-11-15|
    JP2017510947A|2017-04-13|
    DE202015006355U1|2015-11-19|
    WO2015136206A1|2015-09-17|
    JP2020115078A|2020-07-30|
    KR102300269B1|2021-09-10|
    FR3018171B1|2017-01-27|
    US20170023260A1|2017-01-26|
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    法律状态:
    2016-03-22| PLFP| Fee payment|Year of fee payment: 3 |
    2017-03-24| PLFP| Fee payment|Year of fee payment: 4 |
    2018-03-22| PLFP| Fee payment|Year of fee payment: 5 |
    2020-03-25| PLFP| Fee payment|Year of fee payment: 7 |
    2021-03-31| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1451943A|FR3018171B1|2014-03-10|2014-03-10|WORK PLAN IN VITROCERAMIC|FR1451943A| FR3018171B1|2014-03-10|2014-03-10|WORK PLAN IN VITROCERAMIC|
    PCT/FR2015/050582| WO2015136206A1|2014-03-10|2015-03-09|Glass-ceramic worktop of large size|
    EP15714593.9A| EP3117150A1|2014-03-10|2015-03-09|Glass-ceramic worktop of large size|
    DE202015006355.1U| DE202015006355U1|2014-03-10|2015-03-09|Handling device, in particular worktop made of glass ceramic|
    KR1020167024691A| KR102300269B1|2014-03-10|2015-03-09|Glass-ceramic worktop of large size|
    JP2016556797A| JP2017510947A|2014-03-10|2015-03-09|Glass ceramic work top|
    CN201580012988.6A| CN106068423A|2014-03-10|2015-03-09|Large-size glass potter's station|
    US15/124,634| US10794600B2|2014-03-10|2015-03-09|Glass-ceramic worktop|
    JP2020038259A| JP2020115078A|2014-03-10|2020-03-05|Glass-ceramic worktop|
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