• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to the process that allows to obtain a wood sheet with a thickness between 0.6 and 0.8 mm, where both surfaces are covered with a matt glass polyester film with a thickness between 70 and 80 microns which is Adheres to the wood sheet by thermo-pressing. Between the stages of the procedure, the sanding of the wood sheet is carried out until reaching a thickness comprised between 0.6 and 0.8 mm, the application of a matte polyester film with a thickness between 70 and 80 microns, the thermopress temperature and controlled speed and the cold pressing of the wood sheet covered with the plastic film. The object of the present invention is the obtained translucent wood sheet that allows to obtain singular configurations of lighting lamps. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2695448A1
    申请号:ES201730856
    申请日:2017-06-28
    公开日:2019-01-04
    发明作者:Lopez Maria Victoria Calvo
    申请人:Luziferlamps S L；
    IPC主号:
    专利说明:

    [0001]
    [0002] PROCEDURE FOR THE MANUFACTURE OF WOODEN SHEETS FOR LAMPS AND
    [0003]
    [0004] OBJECT OF THE INVENTION
    [0005]
    [0006] The present invention relates to the process of obtaining translucent wood sheets to be used in the configuration of screens or panels in lighting lamps.
    [0007]
    [0008] Specifically, the object of the invention is to provide a method for obtaining sheets of wood with a high degree of flexibility, such that it allows its malleability and subsequent manipulation to configure screens for lighting lamps with the desired configuration, since said sheets of wood obtained will have the necessary thickness to give them a translucent character, allowing the lighting of the room where the lamp is located, and providing an element of aesthetic and decorative value to it.
    [0009]
    [0010] BACKGROUND OF THE INVENTION
    [0011]
    [0012] Currently the use of wood-based materials and wood fibers, together with other plastic additives, is widely used to obtain sheets or conglomerates, which are used in the manufacture of furniture and decorative objects.
    [0013]
    [0014] The products thus obtained have a great aesthetic value, evoking a natural environment and providing warmth to the room where they are located, in contrast to the products obtained in plastic material.
    [0015]
    [0016] The products obtained Integrally in plastic materials have the advantage of being widely moldable, in addition to allowing the passage of light, contrary to the products integrated by wood or its fibers that are characterized by their opaque character.
    [0017] That is why the wood presents a natural limitation for its aesthetic and decorative application in lighting screens, whether domestic or commercial, due to its opacity and low flexibility.
    [0018]
    [0019] Trying to overcome this problem, it is known the existence in the state of the art of the Spanish patent num. ES2337536, whose ownership corresponds to the present applicant, and which attempts to respond to the above-mentioned drawbacks, by offering a lampshade of wood veneers with a thickness such as to allow the passage of light and a flexibility that facilitates its conformation in the desired structure.
    [0020]
    [0021] However, the industrial process disclosed in the aforementioned patent obtains a wood veneer of concrete thickness that is varnished to obtain the desired finish in the material, which gives rise to sheets that are very brittle and, therefore, unusable for handling and obtaining. of the lighting panels or panels of singular shapes.
    [0022]
    [0023] The present invention solves in a fully satisfactory manner the aforementioned problematic, by offering a wooden sheet with a thickness such that it provides sufficient flexibility and strength to enable its forming when a polyester film is applied under certain conditions, at the same time that allows the passage of light to be used in obtaining screens or lighting panels, eliminating the application of varnishes that result in brittle or cracked materials over time.
    [0024]
    [0025] DESCRIPTION OF THE INVENTION
    [0026]
    [0027] The wooden sheets for lighting lamps object of the present invention are obtained from a piece of wood, which is subjected to different stages that are detailed below in order to obtain a thickness such that the resulting sheet presents a large flexibility and sufficient resistance for its subsequent manipulation, not reachable by other processes, and being simultaneously a translucent sheet that allows the passage of light for the lighting of the room.
    [0028]
    [0029] In order to obtain sheets of wood of translucent character and that present simultaneously a high malleability for an optimal subsequent manipulation, it has been It is necessary to perfect procedures known up to now. Specifically, that disclosed in the patent ES2337536 by which wood sheets are obtained very flexible and very brittle that during their manufacture generated a high amount of waste material for the following reasons:
    [0030] - the incorrect union between the wooden sheet and the plastic film that covers it,
    [0031] - the frequent imprecision of the application of polyester film that generated air bubbles on the surface or modified the natural color of the wood, and - Insufficient thickness of the wood sheet that breaks and cracked very easily.
    [0032]
    [0033] For all the above, the present invention includes the use of a very specific polyester film, and applied under certain conditions, without which it is not possible to speak of an improved method of obtaining the wood laminate.
    [0034]
    [0035] Specifically, the use of a high quality glass polyester film, which is thermally activated for the encapsulation of the wood sheet, enables the obtaining of translucent and malleable wood sheets.
    [0036]
    [0037] The high malleability of the product obtained is the essential property that makes it so advantageous, since it allows the configuration of different forms hitherto unused in wood for lighting, leaving at all times the passage of light in its passage due to its character translucent
    [0038]
    [0039] Next, the stages of the procedure for obtaining a wooden laminate for lighting lamps, object of the present invention, are detailed.
    [0040]
    [0041] First, proceed to the sanding of a sheet of wood to reach a thickness between 0.6 and 0.8 mm. In this sense we must emphasize that the patent num. ES2337536 specified the thickness in 0.4mm, however the sheets of this thickness can not be further manipulated until intense curvatures are reached, since in this situation they break easily.
    [0042]
    [0043] Subsequently, a plastic film is disposed, preferably based on matt glass polyester in the range between 0.55 and 0.8 mm, and which is necessarily applied on both sides of the wood laminate, in order to give it a smooth finish, without irregularities or splinters, and to enable The safe manipulation of the screen or lighting panel.
    [0044]
    [0045] Next, the thermo-pressing of the polyester film is carried out on the wood sheet when applying a temperature of between 80 ° C and 110 ° C, and where the passage of the wood sheet through the hot-pressing rolls is necessarily carried out at a speed between 40 and 60 linear cm per minute.
    [0046]
    [0047] Once the application is finished, the sheet is subjected to a roller pressing stage, in order to prevent the formation of wrinkles of the plastic film on the wooden sheet.
    [0048]
    [0049] Advantageously, the application of this plastic film allows the suppression of synthetic varnishes, which result in materials obtained that can be brittle or cracked.
    [0050]
    [0051] Finally, the sheet is subjected to a sanding process in its edges or ridges in order to eliminate the possible material left over from the plastic film.
    [0052]
    [0053] Thus, translucent and highly flexible sheets of wood with a thickness between 0.6 and 0.8 mm are obtained, where both surfaces are covered with a matte polyester film with a thickness between 70 and 80 microns that adheres to the wood sheet by hot pressing.
    [0054]
    [0055] These sheets of wood are used in obtaining lamps or lighting panels in any way required by the characteristics of the design in question, obtaining a product of high aesthetic and functional value.
    [0056] DESCRIPTION OF THE DRAWINGS
    [0057]
    [0058] To complement the description that is going to be carried out next and in order to help a better understanding of the characteristics of the invention, according to a preferred example of practical realization thereof, a set of drawings is included as an integral part of said description. where with illustrative and non-limiting character, the following has been represented:
    [0059]
    [0060] Figure 1 shows a perspective view of an example of configuration that can be obtained based on the wooden sheet obtained according to the method of the present invention.
    [0061]
    [0062] Figure 2 shows a perspective view of a second example of configuration that can be obtained based on the wooden sheet obtained according to the method of the present invention.
    [0063]
    [0064] PREFERRED EMBODIMENT OF THE INVENTION
    [0065]
    [0066] The invention that is advocated is obtained, preferably, by the manufacturing process whose stages are detailed below:
    [0067]
    [0068] - Optional dyeing of the wood piece or sheet to give it the color required by the design in question.
    [0069] - Sanding the wood piece or sheet until it reaches a thickness of 0.7 mm, which results in a sheet of great flexibility and which, therefore, is highly manipulable for its conformation in the desired shape of the lighting screen. Additionally, this thickness gives translucent character to the wood sheet, allowing the passage of light and the lighting of the room where the lamp or lighting panel is located.
    [0070] - Application on both sides of the wood sheet of a film made of matt glass polyester plastic material with a thickness of between 70 and 80 microns, which is adhered to the wood sheet by thermopressing at a temperature of 105 ° C, and a speed of 55 linear cm per minute.
    [0071] - Cold pressed by rollers of the wooden sheet covered with the film of plastic material, in order to prevent the formation of wrinkles in it.
    [0072] - Sanding the edges and edges of the wooden sheet in order to eliminate any remaining leftovers from the plastic film.
    [0073]
    [0074] In this sense, figures 1 and 2 show two embodiments of lamps of singular configuration that can be obtained by using the wood veneer obtained according to the manufacturing procedure detailed above.
    [0075]
    [0076] Advantageously, the wood laminate obtained (1) offers sufficient flexibility and manageability, without generating at any time the breakage or cracking of the material, to support configurations and assemblies as complex as the lamps (2) shown in figures 1 and 2.
    权利要求:
    Claims (3)
    [1]
    1a.- Procedure for obtaining wood sheets for lamps comprising:
    - Sanding the wood sheet until it reaches a thickness between 0.6 and 0.8 mm.,
    - Application, preferably on both sides of the wood sheet, of a matt polyester film with a thickness between 70 and 80 microns,
    - Thermo-pressing of the polyester film to the wood sheet when applying a temperature of between 80 ° C and 110 ° C, and where the passage of the wood sheet through the hot-pressing rolls is done at a speed between 40 and 60 linear cm per minute.
    - Cold pressing of the wooden sheet covered with the plastic film by means of rollers to avoid the formation of wrinkles and air bubbles of the plastic material on the surface of the wooden sheet.
    - Sanding the edges and edges of the wooden sheet to remove leftover remains of the plastic film.
    [2]
    2a.- Process for manufacturing wood sheets for lamps, according to the revindication, which includes a stage of tinting the wood sheet, which takes place before sanding the wood sheet.
    [3]
    3 a.- Wood laminate for lamps characterized by having a thickness of between 0.6 and 0.8 mm, where both surfaces are covered with a matt glass polyester film with a thickness between 70 and 80 microns that adheres to the wood sheet by thermopress.
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    同族专利:
    公开号 | 公开日
    WO2019002646A1|2019-01-03|
    US11161269B2|2021-11-02|
    MA49523A|2020-05-06|
    ES2695448B2|2019-10-23|
    EP3647007A1|2020-05-06|
    EP3647007A4|2021-03-10|
    US20200130223A1|2020-04-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES142248Y|1968-10-11|1969-10-01|Rodriguez Jimenez|DEVICE FOR THE MANUFACTURE OF LIGHT SCREENS.|
    ES2003155A6|1985-10-29|1988-10-16|Partek Ab|A multiply wood product.|
    ES2054586A1|1993-01-20|1994-08-01|Barberi Jorge Bartrina|Laminar, translucent decorative objects made from wood, and process for manufacturing same|
    FR2772884A1|1997-12-23|1999-06-25|Alain Lambert|Decorative lamp shade.|
    US6547419B1|2000-11-12|2003-04-15|David M. Brackman|Light screen|
    JP2002144483A|2000-11-17|2002-05-21|Showa Giko Kk|Light-transmitting decorative sheet having woodgrain and internal lighting furniture|
    ES2337536A1|2007-05-18|2010-04-26|Alexander Emil Tothill|Screen of wooden plate lamps. |
    JP2009160819A|2008-01-07|2009-07-23|Art Shinshu Kk|Composite sheet for displaying shadow picture, shade for lighting equipment, lighting equipment, and shoji paper|
    US3905855A|1972-11-01|1975-09-16|Owens Corning Fiberglass Corp|Rigid fibrous panel and method of making same|
    AT406947B|1999-01-15|2000-10-25|Neuhofer Franz Jun|PROFILE BAR AND METHOD AND DEVICE FOR PRODUCING THIS PROFILE BAR|
    US6649245B2|2001-03-30|2003-11-18|Thomas A. Lenderink|Flexible real wood composition veneer|
    DE102006007869A1|2006-02-17|2007-08-30|Jowat Ag|Process for laminating plastic films on wood-based substrates, in particular for producing high-gloss surfaces|
    US20080000581A1|2006-06-28|2008-01-03|Gilles Leon Nison|Preparation of laminated composite substrates using coated oriented polymeric film|
    US20110311787A1|2010-06-21|2011-12-22|Sustainable Cards, Llc|Decomposable composite wood sheets|
    法律状态:
    2019-01-04| BA2A| Patent application published|Ref document number: 2695448 Country of ref document: ES Kind code of ref document: A1 Effective date: 20190104 |
    2019-10-23| FG2A| Definitive protection|Ref document number: 2695448 Country of ref document: ES Kind code of ref document: B2 Effective date: 20191023 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201730856A|ES2695448B2|2017-06-28|2017-06-28|Manufacturing process of wood sheets for lamps and wood sheet obtained|ES201730856A| ES2695448B2|2017-06-28|2017-06-28|Manufacturing process of wood sheets for lamps and wood sheet obtained|
    MA049523A| MA49523A|2017-06-28|2018-06-21|PROCESS FOR MANUFACTURING WOOD SHEETS FOR LAMPS AND WOOD SHEET OBTAINED|
    US16/626,930| US11161269B2|2017-06-28|2018-06-21|Method for manufacturing wood sheets for lamps and thus obtained wood sheet|
    EP18824732.4A| EP3647007A4|2017-06-28|2018-06-21|Method for manufacturing wood sheets for lamps and thus obtained wood sheet|
    PCT/ES2018/070439| WO2019002646A1|2017-06-28|2018-06-21|Method for manufacturing wood sheets for lamps and thus obtained wood sheet|
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