Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
  • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
  • F21V17/107—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using hinge joints
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
  • E04B9/32—Translucent ceilings, i.e. permitting both the transmission and diffusion of light
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
  • E04F13/00—Coverings or linings, e.g. for walls or ceilings
  • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
  • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
  • F21S8/00—Lighting devices intended for fixed installation
  • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
  • F21V1/14—Covers for frames; Frameless shades
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
  • F21V33/006—General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
  • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Definitions

• the present invention relates to a light box of the type consisting of a profiled element cut and assembled in the form of a frame at the base of which is fixed a translucent sheet, this box being particularly intended for
• the light boxes of this type when they are small, have sufficient rigidity allowing the user to handle them without risk of causing irreversible damage. This is unfortunately not the case when the dimensions of these boxes exceed certain limits, and one is then forced to reinforce them with stiffening elements.
• the latter usually consist of transverse bars, in particular joining two respective opposite sides of the box, which extend substantially in the plane of the upper face thereof, between the translucent sheet and the lighting means, if although the latter project their drop shadow onto the translucent sheet, a visible shadow of the users of the room.
• An object of the present invention is to provide a means for constituting a light box stiffener does not generate a shadow on the translucent canvas.
• Boxes are thus known which are held on the ceiling by screws arranged at their periphery, so that one is forced to implement a real disassembly operation to access the sheet and the lighting means which is followed by a reassembly operation once the maintenance has been carried out.
• Some light boxes are also arranged in support on longitudinal and transverse supports held away from the ceiling by tie rods. It is understood in these conditions that the maintenance of such boxes is a difficult operation because of the complexity of implementation of assembly and disassembly operations.
• the present invention also aims to remedy this drawback by proposing a light box able to give the user almost immediate access to its internal volume, thus allowing easy and fast maintenance, all at once with respect to the inner face of the stretched canvas as the lighting means.
• the present invention thus relates to a light box intended, in particular in association with other boxes of the same type, to constitute a luminous wall such as for example a ceiling, this box consisting of a frame at the base of which is fixed at least one transparent or translucent sheet, and adapted to receive lighting means arranged above said frame, characterized in that it comprises stiffening means ensuring the connection between them of some of the sides of the frame, these stiffening means being arranged near the lighting means.
• the stiffening means may for example be constituted by at least one spar joining two opposite sides of the frame.
• the frame forming the frame of the box according to the invention may advantageously be formed by the association of sections formed from a profiled element.
• the upper face of at least two opposite sides of the frame will be hollowed out with a groove adapted to receive, slidingly, a slide member articulated in rotation on a integral part of a support structure, including the ceiling.
• Figure 1 is a vertical sectional view of an embodiment of a light box according to the invention shown in the closed position, or operating position.
• Figure 2 is a vertical sectional view of the box shown in Figure 1 in the open position or maintenance position.
• Figure 3 is a partial view of the lower part of a box of the type shown in Figures 1 and 2.
• Figure 4 is a partial view of the sliding means and articulation of the box shown in the previous figures.
• Figures 5 and 6 are partial views in vertical section of two alternative embodiments of the invention.
• Figure 7 is another variant in which the box is of high height and the stiffening means are located in the upper plane thereof.
• FIG. 8 is a partial view in vertical section of a variant of the sliding and articulation means of the box shown in FIG. 4.
• FIGS. 1 to 3 show a light box 1 according to the invention which is arranged under a ceiling 2 on which are arranged lighting means consisting for example of 3 parallel discharge tubes.
• the box 1, which is of parallelepipedal shape, consists of the association of four profiled elements I 3 which form each of its sides and which end in 90 ° miter cuts connected by brackets not shown in the drawing. .
• each of the sides ends with two parallel wings 4 and 5 extending downwards and whose inner face of the outer flange 4 is provided with a transverse stop 6 for receiving in single support an end of a border 7 disposed on the periphery of a translucent stretched sheet element 9 forming the bottom of the box.
• the latter is provided with a stiffening member 10 uniting the two opposite sides has the frame.
• This stiffening element 10 consists of a central portion 10b which is parallel to the bottom of the chamber 1 consisting of the stretched sheet member 9, and two end portions 10a allowing departing from the scope the central part 10 b and to bring it closer to the lighting means 3. It has thus been found that when the central portion 10 b of the stiffener 10 was on the one hand remote from the inlet face 9 a of the box, that is to say of the large one opposite thereof to the web, and secondly close to the lighting elements 3, they did not form a shadow of the stiffening element 10 on the inner face of the web element 9 forming the bottom of the box.
• both the inner face of the stretched web element (cleaning) and that of the lighting means are identical to both the inner face of the stretched web element (cleaning) and that of the lighting means.
• the light box according to the invention is pivotally mounted about an axis lying parallel to one of its sides.
• the upper edge 8 of each of the profiled elements is forming the sides of the housing is hollowed with a groove 13 in the inverted T-shaped allowing the sliding therein of a slider 15.
• the box according to the invention is thus provided with two respective sliders arranged in the upper grooves of two opposite sides which are secured to their respective upper parts of a flange 17a belonging to a flange. 17 in the form of bracket whose other flange 17b is traversed by an axis 19 fixed in a side wall 21 with the interposition of a washer 22.
• the stiffening element may, as shown in Figure 5, be arranged parallel to the lighting tubes 3 and even take place therebetween.
• the box according to the invention is particularly intended to take place inside a partitioning element 23.
• the box is usually held in a position of four-point operation.
• Two holding points are constituted by the two axes 19 and the slider element 15 and the two others consist of fastening latches formed of two elements 20a and 20b respectively integral with the caisson 1 and the partitioning element 23.
• the box also comprises means for holding it if the user so wishes, in an inclined position as shown in FIG. 2.
• These means can be constituted for example in a simple manner by a flexible wire 25, a strap or a chain, one end is fixed for example on one end of the element 10b and the other end on the partition 23.
• These holding means are particularly interesting in that they constitute a way to ensure the safety of the user when opening the safe.
• a first translucent sheet 9 is placed in a box 1 at a distance e_ from the base thereof and a second sheet 9 'transparent at a distance E above the first.
• the upper sheet 9 ' has the role of protecting the lower sheet 9 against dust and insects that could be deposited on it and which would be visible by users.
• the plies 9 and 9 ' can be fixed by any means and in particular by a bonding point or solder 24 disposed on the periphery thereof.
• the lighting means will be distant from the sheet furthest from at least ten centimeters.
• the stiffening means 10 may be arranged in the plane of the upper part of the box.
• the profile has the from which are formed the sides of the chamber 1 is hollowed with a longitudinal groove 13 'in which takes place a roller 16 of axis xx' horizontal about which it is mounted rotation on a shaft 26 which is fixed in a side wall 21.
• the groove could be replaced by a slide fixed on two opposite sides of the box, either in the upper part or on the sides thereof.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• General Engineering & Computer Science (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Securing Globes, Refractors, Reflectors Or The Like (AREA)
• Non-Portable Lighting Devices Or Systems Thereof (AREA)
• Drawers Of Furniture (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=35134715

Family Applications (1)

Country Status (11)

Families Citing this family (14)

Family Cites Families (13)

• 2005
  • 2005-02-25 FR FR0501947A patent/FR2882588B1/fr not_active Expired - Fee Related
• 2006
  • 2006-02-23 CA CA2598500A patent/CA2598500C/fr not_active Expired - Fee Related
  • 2006-02-23 RU RU2007136156/28A patent/RU2007136156A/ru unknown
  • 2006-02-23 WO PCT/FR2006/000416 patent/WO2006090068A1/fr not_active Ceased
  • 2006-02-23 JP JP2007556636A patent/JP4811675B2/ja not_active Expired - Fee Related
  • 2006-02-23 EP EP06725982.0A patent/EP1851394B1/de not_active Expired - Lifetime
  • 2006-02-23 AU AU2006217815A patent/AU2006217815B2/en not_active Ceased
  • 2006-02-23 BR BRPI0608557-1A patent/BRPI0608557A2/pt active Search and Examination
  • 2006-02-23 US US11/816,995 patent/US7607796B2/en not_active Expired - Fee Related
  • 2006-02-23 CN CNA2006800061225A patent/CN101128637A/zh active Pending
  • 2006-02-23 ES ES06725982.0T patent/ES2604627T3/es not_active Expired - Lifetime

Non-Patent Citations (1)

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