Classifications

• • 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
  • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
  • E04B9/0428—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like having a closed frame around the periphery
• • 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
  • E04B9/22—Connection of slabs, panels, sheets or the like to the supporting construction
  • E04B9/24—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto
  • E04B9/241—Connection of slabs, panels, sheets or the like to the supporting construction with the slabs, panels, sheets or the like positioned on the upperside of, or held against the underside of the horizontal flanges of the supporting construction or accessory means connected thereto with the slabs, panels, sheets or the like positioned on the upperside of the horizontal flanges of the supporting construction
• • 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
  • E04F13/072—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of specially adapted, structured or shaped covering or lining elements
  • E04F13/078—Stretched foil- or web-like elements attached with edge gripping devices
• • 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
  • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
  • E04B2009/0492—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like with fabrics tensioned on frames

Definitions

• the invention relates to the technical field of false suspended ceilings or false walls.
• the invention relates more particularly to a false ceiling slab.
• a slab generally includes a frame and a canvas stretched over the frame.
• Document FR 2 892 739 in the name of the Applicant or US equivalent US 2007/0157535 discloses a profile for producing a frame for a slab of false ceilings or false walls.
• This profile has an upper wall, a side wall composed of an upper portion substantially perpendicular to the upper wall and a lower portion forming an obtuse angle with the upper part.
• the profile further comprises a bearing wall located in the lower part of the profile, an inner flange substantially perpendicular to the upper wall and two stiffening walls.
• the first stiffening wall is substantially parallel to the upper wall and connects the upper part of the side wall with the inner wing, thus forming a first box.
• the second stiffening wall connects the support wall with the inner wing, thus forming a second box.
• the inner flange comprises mounting grooves adapted to secure brackets on which are fixed, for example, insulating materials or light systems.
• This profile gives satisfaction, particularly by its mechanical strength, but remains perfectible.
• a frame formed of such profiles requires the use of brackets for fixing a lighting device or a sound and / or thermal insulation insert, which complicates its mounting process.
• a first objective is to provide a profile for a false ceiling slab reduced size.
• a second objective is to propose a profile for a slab of false ceiling lightened.
• a third objective is to provide a profile for a false ceiling slab providing increased mechanical strength to equal mass, or mechanical strength maintained small size.
• a profile for producing a false ceiling slab or false wall comprising:
• a substantially rectangular base comprising an opposite upper wall and an opposing bottom wall connected by an opposite outer wall and an inner wall;
• the profile comprises a rabbet at the junction between the inner face of the side wall and the bottom wall of the base, this rabbet having an inner edge substantially perpendicular to the bottom wall of the base.
• Such a profile allows, while maintaining a good mechanical strength to lighten the profile and, thus, the slab false ceiling or false wall.
• the inner face of the side wall forms, with the bottom wall of the base, an obtuse angle
• the angle between the inner face of the side wall and the bottom wall of the base is strictly between 90 ° and 110 °; the angle between the internal face of the side wall and the bottom wall of the base is approximately 97 °; the outer face of the side wall forms an obtuse angle with the outer wall of the base;
• the angle between the outer face of the side wall and the outer wall of the base is strictly between 170 ° and 180;
• the angle between the external face of the side wall and the external wall of the base is about 177 °;
• the rabbet has an inner edge which extends, from the lower wall of the base, to a height of a few millimeters;
• the base of the profile is subdivided into boxes in which are defined slides for assembly elements.
• a false ceiling slab or false wall in which this slab comprises a frame formed by assembling profiles as presented above, a canvas stretched over the frame, and a light panel mounted on the base of the profiles, in a housing delimited by the lower wall and the rabbet of each profile.
• Figure 1 is a sectional view of the section
• Figure 2 is an exploded view from below showing a false ceiling slab or false wall comprising a light device, for reasons of clarity, the fabric of the slab is not shown;
• Figure 3 is a detail view according to inset III of Figure 2;
• Figure 4 is a detailed sectional view of a false ceiling slab or false wall comprising a light device.
• Figure 1 shows, in section, a section 1 for the production of a frame 2 of a slab 3 false ceiling or false wall.
• an acute angle designates an angle whose value is strictly between 0 ° and 90 °
• an obtuse angle designates an angle whose value is strictly between 90 ° and 180 °.
• the profile 1 comprises a base 4 which has in section a substantially rectangular profile.
• This base comprises a substantially horizontal upper wall 5 and a lower wall 6 parallel to the upper wall, connected at their ends by two parallel opposite walls, namely an inner wall 8 and an outer wall 7.
• the base 4 extends transversely over a width L, and is preferably hollow.
• the base 4 includes an intermediate wall 9 which subdivides the base 4 into two boxes 10. As can be seen in the figures, and in particular in FIG. 4, the boxes 10 are provided. protruding ribs 11 which define slides 12 each adapted to accommodate a frame assembly member 13, in particular a bracket which is housed in a slideway 12 for joining two adjacent sections 1.
• the section 1 further comprises a side wall 14, which protrudes from the base 4 substantially in the extension of the outer wall 7.
• the side wall 14 has an outer face 15 which extends in the extension of the outer wall 7 of the base 4, and an inner face 16, which extends on the side of the lower wall 6 of the base 4.
• the external face extends slightly obliquely with respect to the vertical, and forms with the external wall of the base 4 an open angle A1 that is strictly less than 180 ° while being greater than or equal to 170 °. According to one embodiment, the angle A1 is approximately 175 °.
• the inner face 16 also extends obliquely with respect to the vertical, on the same side as the external face, and forms with the bottom wall 6 of the base 4 an obtuse angle A2, strictly greater than 90 ° while preferably being less than 110 °.
• the angle A2 is about 100 °.
• the inner face 16 and the outer face 15 meet, opposite the base 4, at a lower end edge 17 of the side wall 14. This end edge 17 forms a support for the slab 2, as will be explained below.
• the end edge 17 is rounded to form a fillet of connection between the outer face 15 and the inner face 16.
• the side wall 14 extends over a height H, measured vertically between the bottom wall 6 of the base 4 and the end edge 17, equal to or greater than the width L of the base 4. According to one embodiment , the height H of the lateral wall 14 is equal to or greater than approximately 20% of the width L of the base 4.
• the profile 1 comprises, at the junction of the lateral wall 14 and the base 4, and more precisely at the junction of the inner face 16 and the lower wall 6 of the base, a rebate 18, an inner edge 19 of which forms a reference surface substantially perpendicular to the bottom wall 6 of the base 4.
• the rebate 18 extends, in the example shown, a height h, measured vertically from the lower wall 6 of the base 4, small in front of the height H of the side wall 14.
• the height h of the rabbet 18 is of the order of a few millimeters.
• the external face and the internal face of the lateral wall form between them an acute angle A3 such that the lateral wall appears tapered towards its end edge.
• the angle A3 is advantageously less than or equal to 10 °. According to an embodiment illustrated in Figure 1, the angle A3 is of the order of 5 °.
• the slab frame 2 is formed by assembling four sections 1 which terminate at their ends by miter cuts at 45 ° allowing, when two sections 1 are abutted, to make a right angle assembly.
• the assembly elements 13 are inserted into their slides to ensure a rigid holding of the profiles 1 at their junctions.
• the frame 2 thus assembled then forms a housing 21 delimited vertically by the lower wall 6, and laterally by the rabbet 18 of each section.
• a luminous panel 22 is then attached by being positioned in the housing 21 thus defined, and fixed (for example by gluing, screwing, welding or riveting) on the lower wall 6 of the profiles 1.
• This luminous panel 22, which has a contour 23 to square or rectangular profile, carries a multitude of 24 light sources arranged in the form of a matrix and turned away from the base 4 when the panel 22 is mounted. According to one embodiment, these light sources 24 are light emitting diodes (LEDs) each emitting a light according to a cone 25 whose half-angle at the top is noted A4 ( Figure 4).
• LEDs light emitting diodes
• D denotes the predetermined distance between the contour 23 of the panel 22 and each source 24 closest to the contour 23 (that is to say the peripheral sources 24 of the matrix of sources 24).
• the inner edge 19 of the rabbet 18 allows to accurately position the panel 22 relative to each profile 1, and more precisely with respect to each side wall 14.
• the perpendicularity the internal edge 19 of the rabbet 18 ensures a good lateral wedging of the panel 22 relative to the frame 2.
• the contour 23 of the panel 22 is indeed positioned against the inner edge 19 of the rabbet 18, with a minimum clearance preferably, zero, so that, given the height H of the side wall 14 and the distance D, predetermined, the light cone of each source 24 adjacent the contour 23 is tangent to the end edge 17 of the side wall, as shown in Figure 4.
• the rabbet 18, which protrudes from the junction between the side wall 14 and the inner wall 8 of the base 4 can undergo a machining restart. by milling when its projection relative to the side wall 14 is too large, as shown in
• a fabric 26 is stretched on the frame 2.
• This fabric 26, typically made of PVC, is distended thermally (hot) to bag the frame.
• the free edge (s) of the fabric 26 is (are) then welded (s), and the fabric 26 is then cooled (possibly accelerated), this cooling accompanied by a narrowing of the canvas 26 which then comes to enclose the frame.
• a power cord of the panel typically made of PVC
• the slab 3 is mounted on a support 27 fixed to the ceiling.
• This support 27 is particularly in the form of an L-beam or T-beam, comprising a vertical core 28 and a horizontal sole 29 which extends at right angles to a lower end of the core 28, this sole 29 defining a laying plan for the end edge 17.
• the sharpness of the end edge 17 makes it possible to reduce the width of the soleplate 29, and thus to reduce the area of shadow formed by this while the fabric 26 stretched, backlit by the panel 22 light, forms a square of diffuse light.
• the frame 2 does not cast any shadow on the fabric 26.
• Lighting causes the frame to overheat.
• the inclination of the outer face which restricts the contact surfaces between the frame 2 and the support 27 (in particular between the lateral wall 14 and the core 28), limits the heat transfer to the support 27, which which reduces the risk of deformation of the latter and allows better cooling the slab 3 by air circulation on its sides.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Finishing Walls (AREA)

Applications Claiming Priority (2)

Publications (2)

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ID=48652257

Family Applications (1)

Country Status (3)

Cited By (1)

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Family Cites Families (4)

• 2013
  • 2013-02-27 FR FR1351746A patent/FR3002566B1/fr not_active Expired - Fee Related
• 2014
  • 2014-02-25 WO PCT/FR2014/050407 patent/WO2014131988A1/fr active Application Filing
  • 2014-02-25 EP EP14713185.8A patent/EP2961897B1/de not_active Not-in-force

Non-Patent Citations (1)

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