FR2690941A3 - Grid support structure for ceiling claddings. - Google Patents

Abstract

In a grid support structure, support (1) and transverse (2) rails consist of an upwardly open C-section, the inwardly bent flanges (7) of which are provided, at least on the support rails (1) and on corner pieces (4), rectangular holes (8) in which tabs (9), bent upwards at the end of the edges (7) of the transverse rails (2 ), are nestable by their ends (11) angled downward and provided with a spout (10).

Description

i

  GRID SUPPORT STRUCTURE FOR CEILING TRIMS

Description

  The present invention relates to a structure which

  support strip for ceiling coverings such as panels, soundproofing plates and the like, possibly including lighting and ventilation elements. Grid support structures of this kind are known, which are assembled from T-profiles in which the central members of the transverse rails are

  made, at the end, in the form of tongues fitted

  tees in corresponding holes in the mem-

  central flange of the support rail These tabs are rela-

  tively weak, so that they can warp under the effect of a transverse stress or torsion, in particular when these thin-walled sections consist of aluminum This results in difficulties at the dismantling stage of such checkered support structures, for example for inspection purposes In addition, a torsional stress involves an inclination of the support wing and, consequently, a ceiling covering which ceases to be flat

and smooth.

  The object sought therefore consists in providing a gridded support structure which can likewise be assembled by interlocking while, however, having

better stability.

  According to the invention, this object is achieved gra-

  this to a gridded support structure comprising support rails, transverse rails, joining pieces, corner pieces, suspension lugs, edge rails and possibly cross-connecting elements,

  structure in which the rails consist of a pro-

  C-shaped sheet steel yarn, open upwards and the edges folded inwards are provided, at least on the support rails and on the corner pieces, with rectangular holes in which the tongues produced with bending upwards corresponding to the thickness of the material, at the end of the edges of the transverse rails, can be fitted by their bent ends downwards and

fitted with a spout.

  The ends of the cross rails can be

  partially closed by bending, upwards, the members

res of the C profile.

  The joint is a U-shaped profile, which is in-

  troduit in the C-profile and ensures the mutual connection of the rails In the case of a T-connection, the second rail is replaced by a corner piece threaded on the piece

  joint which corresponds to the end of a support profile

  port from the free end of which the cross section

  side is closed, for example by bending the frames

to the top.

  In a particular embodiment of the invention

  tion, the branches of the joint part are fitted with er-

  gots which engage in corresponding cuts, practical

  in the branches of the ends of the support rails

  and corner pieces, and which also record these

  deny permanently in the longitudinal direction.

  The suspension bracket consists of a T-shaped steel sheet pierced with a hole, the two arms of which are bent in a U at the ends. It is inserted into the support profile by means of these arms, which arms are applied internally. , at least in part, against the branches of the support profile Preferably, the elastic arms are

  shaped so that the tab can also be inserted

  pick from top to bottom, by rotation, in the support rail.

  In the presence of a crisscrossed assembly point

  taking support rails and transverse rails, the tabs located at the end of the transverse rails are pressed into the corresponding holes, formed in the flanges on both sides of the support rail, which gives

  birth of a regular, rectangular or square grid.

  If the crisscross assembly coincides with the meeting of two support rails, respectively a support rail and a corner piece, one considered of the tongues is engaged in the orifice of the first support rail and the the other tab is respectively engaged in the orifice of the second support rail or of the corner piece This has the effect of stopping the meeting area At the assembly stage, or else in the case of a meeting area not not coinciding with a securing zone, it is advisable to use a joining piece, the branch of which has, each time, two pins directed outwards, one of which is introduced into a corresponding cutout formed in the

branch of the support rail.

  If a grid structure consisting of transverse rails is to be established between the support rails,

  these transverse rails must also be drilled with

  fices in their edges folded inwards, for the attachment of the tabs, when the modular dimension is smaller than the length of the transverse rails Additional points of intersecting assembly can be obtained using shortened transverse rails and by means of a

  cross assembly element in the form of a box whose

  edges folded inwards are provided on all four sides

  tees, orifices intended to receive a suspension lug

  and the tabs of the cross rails.

  The grid support structure in accordance with the invention

  There are two possible layouts, discussed below.

  The use of ceiling panels provided, on at least two opposite sides, with projecting edges designed to be applied on the edges of the rails, makes it possible to obtain flat ceilings in which the grid structure comes flush with the ceiling panels. If necessary, the ceiling panels can be fixed by means of fixing clips which snap between the edges of the rails

  and rest on the edges of the ceiling panels.

  When making a ceiling with a structured

  overhanging curl, it is also possible to use ceiling panels without protruding edges, which are placed directly on the edges of the rails If necessary, an offset of the panels can be prevented by means of spacers which are inserted into the rails, from top to bottom When using ceiling panels provided with flanges, these can be placed on the fastening clips A combination of the two possibilities

  allows individual arrangement of ceilings.

  An angle profile, or similar profile, is

  only used as an edge rail to fix the

grid structure on the wall.

  Thus, in accordance with the invention, the edge rail can advantageously consist of a W-shaped section at an angle

  straight, the free branch of which is pierced with holes and is pro-

  skirted downwards, forming a groove, the frame of which

  next to the other free branch is provided with a groove

  turned towards the local, from an upper throat turned-

  born towards the locality, from a throat open upwards and, on its extension directed upwards, from an elbow oriented towards

Wall.

  Use is therefore preferably made of a right angle W profile consisting in particular of aluminum, of which

  one of the free branches is pierced with holes for fixing it

  tion to the wall, and on the other free branch of which the grid structure is placed Such a W-shaped profile

  A joint jointed on the wall According to another characteristic

  that of this border rail, the free branch is extended downward for attachment to the wall, and this extension is bent twice away from the wall, and at right angles upwards In this groove thus formed, concealed in the jointed joint, it is possible to insert sliding hooks for hanging pictures

  and similar flattened objects According to another characteristic

  tick for making the wall profile, the frame, next door

  of the free branch allowing the establishment of the struc-

  ture squared, is extended upwards and is bent in margin towards the wall In addition, this frame has a tongue which forms a lower groove with the branch voi-

  sine An additional reinforcement, located in the central region

  the, has a groove open upwards and a groove

  open towards the room Elbow and open throat

  upwards are used to hold an elastic clip

  for securing the rails permanently The open grooves

  your to the local can receive the edge of the funds of

  metal cassettes, and prevent their lifting A cor-

  packing can also be inserted into the groove

  lower when the ceiling panels are not po-

  sits flush with the grid support structure.

  The invention will now be described in more detail, by way of non-limiting examples, with reference to the appended drawings in which: FIG. 1 is an illustration of a T-shaped assembly zone; Figure 2 is a section of the grid structure, associated with raised ceiling panels; Figure 3 is a section of the grid structure, associated with cassettes integrated in different ways; and

  Figure 4 is a section of the edge rail.

  In Figure 1, a hanger 5 is inserted

  in the C-profile of a support rail 1, in view of the

  ceiling fixing The branches of the U-shaped profile of a room

  joint 3 have lugs 12 directed outwards

  laughing When inserted into the support rail 1, they snap into corresponding cutouts 13 of this

  support rail 1 A corner piece 4 is likewise

  view of cutouts 13 of this type, which prevents it from being offset after mounting Transverse rails 2 have tabs 9 which are attached internally to flanges 7, are shifted upwards in the thickness of the material, and

  protrude substantially half the width of the re-

  edges of the ends 11 of the tongues 9 are bent downwards and are provided with a spout 10 on the sides oriented towards the outside. This is obtained, when inserted into the orifices 8 of the support rail 1 and the corner piece 4, a stop preventing an involuntary dissociation of the assembly At the disassembly stage, the branches of the rail

  transverse 2 are compressed, which has the effect of

rust the bond.

  In FIG. 2, ceiling panels 14 are

  placed on the grid support structure, and are empe-

  to offset with 15 staple clips

  clicking between the edges 7 of the support rail 1 The clips

  spacing fes 15 only slightly exceed the width of the distance between the flanges 7, so that there remains a sufficient bearing surface for the ceiling panels 14. In FIG. 3, a cassette 16 is introduced on one side in the grid support structure, and is prevented from lifting by a fastening clip 17 snapped between the flanges 7 of the support rail 1 On the other side, the flange of the cassette 16 rests on the fastening clips 17 These clips 17 present almost the

  same width as the C-profile of rail 1.

  In an edge rail 6 illustrated in FIG. 4, a free branch 18 is extended downward for the purpose of

  attachment to the wall, and has a groove 19 intended to re-

  receive hooks 20 for tables A trim angle 22 is introduced into a lower groove 21

  facing the room, and the bottom of the cassette 16 is

  serée in an upper groove 23 turned towards the local area The transverse rail 2 rests on another free branch 24,

  on which it is permanently fixed by an elastic clip-

  tick 25 of crampon type production The elastic clip 25 surrounds an elbow 26 and fits, by lateral extensions 27, into a groove 28 open upwards From the

  so, its sliding and its rotation are prohibited.

  I 1 it goes without saying that many modifications can

  be made to the grid structure described and shown

  felt, without departing from the scope of the invention.

Claims (4)

-R E V E N D I C A T I 0 N S-   1 Grid support structure comprising support rails (1), transverse rails (2), parts   joint (3), corner pieces (4), legs above.   board (5), edge rails (6) and possibly cross-connecting elements, structure characterized in that the rails (1 and 2) consist of a C-profile made of sheet steel, open towards the top and which the edges (7) folded inwards are provided, at least on the rails   support (1) and on the corner pieces (4), holes rec-   tangular (8) in which the tongues (9) produced   with bending upwards corresponding to the thickness of the material   material, at the end of the flanges (7) of the transverse rails (2), can be fitted together by their bent ends (11)   downwards and fitted with a spout (10).   2 Grid support structure according to the claim   tion 1, characterized in that the joining piece (3)   consists of a U-shaped profile, the branches of which are   lugs tees (12) directed outwards; and by the fact that the support rails (1) and the corner pieces (4) are   provided with corresponding cutouts (13).   3 Grid support structure according to the claim   tion 1 or 2, characterized in that the connecting element   cross weaving consists of a box open at the top, which has edges folded inwards and pierced   holes to receive the tabs (9) of the trans- versals (2).   4 Grid support structure according to one which   conch of claims 1 to 3, characterized in that   the edge rail (6) consists of a W-shaped profile with an-   straight rod, of which the free branch (18) is pierced with holes and is extended downward, forming the groove (19), and of which the member adjacent to the free branch (24) is provided   a lower groove (21) facing the room, a groove   upper age (23) turned towards the room, of a groove (28) open upwards and, on its extension directed towards the   high, with an elbow (26) oriented towards the wall.