WO1998059127A1

WO1998059127A1 - Internal side wall or wall forming a false ceiling in a room of a building

Info

Publication number: WO1998059127A1
Application number: PCT/FR1998/001339
Authority: WO
Inventors: Pascal Taru
Original assignee: Pascal Taru
Priority date: 1997-06-24
Filing date: 1998-06-24
Publication date: 1998-12-30
Also published as: FR2764918B1; FR2764918A1

Abstract

The invention concerns a wall made up of rigid synthetic plastic plates (1, 2, 24, 25), arranged side by side with slight clearance between their adjacent edges (3, 4, 38, 42). Said plates are made integral by linking means (10, 24-1, 33, 33-1) with light beams (5, 6, 7; 26, 27, 28) which are themselves linked to the room corresponding walls (17, 41). A binder set in the clearance reserved between the synthetic plastic plates improves the internal wall stability and eliminates breaks at the surface.

Description

Lateral interior wall or forming a false ceiling of a room in a building.

The invention relates, in the most general manner, to the interior walls of rooms fitted out in buildings of all kinds, such as apartment or office buildings, individual houses and all types of rooms inside these buildings.

These can be entry rooms, meeting rooms and, in general, any rooms intended for individual or collective use. The invention relates not only to the interior walls which cover the vertical side walls of these rooms, but also to the interior walls, most often horizontal, which form false ceilings in these rooms.

The invention also relates more generally to the method which makes it possible to produce such interior walls, whether lateral or forming a false ceiling.

To make a false ceiling or a vertical interior wall, it is known to use for the interior coating of the side walls or of the structure forming the false ceiling, relatively fragile materials, such as those based on plaster.

These materials tend to crack especially in the case of small deformations of the underlying structure.

We therefore looked for the possibility of using much more resistant materials. We have also sought to be able to achieve very beautiful surface conditions by practically eliminating the risks so frequent, of formation of cracks or deformation.

We have also sought to retain the possibility of arranging, after construction, cable or pipe passages of all kinds through these walls and also along the hidden face thereof.

We also tried to have side internal walls or false ceilings allowing the easy installation of lighting fixtures and all decoration accessories, such as chandeliers, paintings, mirrors etc., without the risk of stalling or deformation of the wall. The known walls have the disadvantage of requiring a lot of time for their installation and for their finishing in order to obtain a good surface finish.

The object of the present invention is to provide an interior wall, vertical or horizontal, which can be mounted quickly while presenting a good surface condition. The wall according to the invention will advantageously make it possible to avoid any risk of cracking and deformation, to arrange after construction cable passages and / or pipes as well as to easily install lighting fixtures or other decorations without risk of deformation of the wall. The lateral internal wall or forming a false ceiling of a room of a building which is the subject of the invention, is a wall constituted by rigid plates of synthetic material, arranged side by side with a small clearance between their edges adjacent, these plates being secured by means of connection with beams themselves connected to the corresponding wall of the part, a binder housed in the space reserved between the plastic plates improving the stability of the interior wall and avoiding discontinuities of surface.

These adjacent edges are preferably cut, so as to form, after installation, a longitudinal opening having a V-shaped cross section. The section is preferably convergent towards the interior of the part and the minimum clearance at the tip. V is for example between 1 and 5 mm.

The binder used is preferably a synthetic binder such as a silicone. It is introduced inside this longitudinal opening over its entire length and thus establishes a solid bond between the plates after solidification.

Each plate is secured with beams which may be metallic or non-metallic, by means of connection such as screws. The beams are themselves connected to the partition or the wall, or, in the case of a false ceiling, to the resistant wall of the ceiling, by suitable means.

In the case of a partition, the beams are advantageously secured with structural components of this partition, such as metal profiles or not.

In the case of false ceilings, it is advantageous to use suspension rods, the upper ends of which are connected to the resistant structure of the ceiling, the lower ends being connected to the beams, themselves secured to the plastic plates. Preferably, rigid sheets of polyvinyl chloride (PVC) are used to make the interior walls according to the invention.

Particularly advantageously, use is made of expanded polyvinyl chloride having a density of preferably between 0.3 and 1.2. This combines a very good bonding ability, using binders, such as for example silicones, with a very good ability to fix layers of paint or varnish or stretched lacquer or other.

Advantageously, these rigid plates are given a thickness of the order of 3 to 15 mm. Unlike other widely used synthetic materials, polyvinyl chloride is classified "M1" and therefore does not spread fire in the event of a fire. It is understood that this quality of non-flammability is particularly important for implementation in the building. It is noted that, in the case of living rooms having an interior height of approximately 2.5 m, lateral interior walls can be produced, for example made of rigid expanded polyvinyl chloride (PVC) plates having a length equal to the height interior and a width of the order of 1, 2 m or more. As will be seen in the examples below, it is without difficulty, in the case of suspended false ceilings, to use several synthetic plates placed end to end to cover the length of the room. It is then often advantageous to have the beams transversely relative to the length of the plates. As specified above, it is advantageous to fill the gaps between the adjacent edges of the plates from the inside, ensuring that the binder forms a bead inwards.

It is thus possible, during the final phase of making the interior wall, whether lateral or forming a false ceiling, to perform a fine grinding of the interior surface of the entire synthetic wall, after a sufficient time for polymerization of the binder. A smooth surface is thus obtained capable of fixing the layers of paint, varnish or lacquer with maximum efficiency.

For fixing the plastic plates to the beams, self-drilling screws are preferably used and screwing is preferably carried out until the head is inserted below the level of the internal surface of the plate.

The depression thus formed is then filled with a few drops of binder, and, after joining, the excess thickness is removed by fine grinding. Generally, the method which is also the subject of the invention consists in securing a set of rigid plates of synthetic material with a set of beams, so as to support these beams against the outer wall of the plates , while maintaining a small clearance between the adjacent edges of these plates and consists in connecting the beams to at least one structural component of the relevant wall of the part, then in introducing a binder in all the clearances between adjacent edges of the plates. Finally, after binding of the binder, the entire inner wall of the plates can be ground with fine grains.

As mentioned above, preference is given to the use of rigid sheets of expanded PVC.

The examples below describe, without limitation, particular embodiments of the device and implementation of the method which are the subject of the invention with reference to the accompanying drawing.

FIG. 1 is a schematic view from above, in plan, of part of an interior wall according to the invention forming a false ceiling,

FIG. 2 is a schematic view, in elevation of a section of FIG. 1 along the trace plane X1 -X1,

FIG. 3 is a diagrammatic view of an enlarged section of a beam of FIG. 1, FIG. 4 is a diagrammatic view in elevation of a longitudinal section of a retaining piece,

FIG. 5 is a top view of the retaining part of FIG. 4,

FIG. 6 is a diagrammatic elevation view of part of an interior side wall according to the invention which is connected to the edge of a false ceiling, and Figure 7 is a schematic side view of Figure 6 along the trace section plane X2-X2 observed along F2.

Figures 1 and 2 schematically show part of an interior wall according to the invention forming a false ceiling. Figure 1 is a top plan view of two rigid sheets of expanded polyvinyl chloride (PVC) 1 and 2. Only one end region of each of these two sheets which are approximately 1, 2 m wide and 2, 5 m long and 7 mm thick is shown.

Figure 2 is a view along arrow F1 of the section plane perpendicular to the plane of Figure 1 along the line X1 -X1.

The thickness of the plates 1, 2 has been increased in relative value in this figure 2 to improve readability.

As already indicated, the choice of thickness can vary taking into account the dimensions and the degree of expansion. The two adjacent plates 1, 2 have adjacent longitudinal edges 3 and 4 which are cut at about 45 ° relative to the plane of Figure 1, so that the clearance between the two plates has a V-section as shown in the figure 2, with a minimum opening e of about 1 to 5 mm. The point of this V-shaped section is oriented towards the inside of the part.

Figure 1 also shows metal beams 5, 6, 7, arranged transversely, with spacings of about 0.6 m between them.

Galvanized steel beams are commonly used, for example having a U-shaped section having a base and two wings 8 and 9 (FIG. 3).

It can be seen that each wing 8, 9 has an inward fold thus delimiting an opening of width L1 less than the internal width L2 separating the wings 8, 9 from one another. The beams are secured to the plates 1, 2 by means of self-drilling screws 10 which cross, as shown in Figure 2, the expanded PVC wall and the base of the corresponding beam.

The screws 10 are tightened so that their heads penetrate into the material constituting the plates 1, 2 below the entry surface 23.

The slight depressions 10-1 thus produced in the PVC wall expanded at each screw head, each is filled with a set of binder. During the fine grinding of this synthetic wall, after polymerization of the binder, a smooth surface capable of receiving any suitable surface coating is obtained. As shown in Figure 1, all the edges of the plates 1 and 2 are cut. This size is preferably made with the same angle of about 45 ° for all the edges which will cooperate, such as the edges 11, 12, 13 with the adjacent edges of other plates in the production of the false ceiling. As shown in Figure 2, the false ceiling is suspended by metal threaded rods 14, 15, 16 from a reinforced concrete slab 17 which here constitutes the resistant wall of the ceiling of the room.

Each of these metal threaded rods is secured to a beam at its lower end by means of a retaining piece 18.

Different types of retainers can be used.

The retainer 18 used here is shown in enlarged form in Figures 4 and 5. Figure 5 is a schematic top view. This retaining part 18 comprises an axial thread 19 able to receive the lower end of a threaded rod such as 14.

The width L3 of the rectangle is less than or at most equal to the entry width L1 of the beam (Figure 3).

Similarly, the length of the rectangle L4 is very close but not notably greater than the internal distance L2 between the two wings of the beam.

It is thus possible to introduce the retaining piece lengthwise inside the beam and to put it in the retaining position by rotation of 90 °.

Preferably, the retaining part has rounded 20 to facilitate its rotation of 90 ° and flats 21 to promote a slight elastic tightening in the 90 ° retaining position.

Retaining lugs 22 allow maintenance inside the beam.

In the case of FIG. 2, the retaining part 18 is represented in the cutting plane in the position for holding the threaded rod

16 whose upper end is secured by a dowel to the slab On the contrary, Figure 1 shows the retaining pieces 18 housed lengthwise in the beams in the absence of a threaded rod.

In practice, it is after attaching the beams to the ceiling 17 by threaded rods 14, 15, 16 that the plates 1, 2 are secured to the beams, such as 5, 6, 7 by means of self-drilling screws 10.

Next, the existing clearances between all the adjacent edges of the plates are filled with the binder, preferably by injection from inside the part.

Likewise, fill in small depressions such as 10-1 at the screw head level.

After the binder has solidified, the excess thicknesses and beads formed by this binder are removed by fine grinding of the entire surface of the plates.

Preferably, a binder of sufficient fluidity is used to wet the adjacent edges of the plates and fill as completely as possible the gap, preferably in V, between these edges over its entire length. Silicone-based binders give good results, in particular in the presence of rigid sheets of expanded PVC having, for example a density of the order of 0.7.

It is found by using such plates and such binders, that internal walls are obtained according to the invention very robust, non-fragile and resistant to cracking.

There is also an absence of delamination and cracking of the coatings produced on these plates.

The example below and Figures 6 and 7 describe the production of an inner side wall according to the invention, with establishment of a connection between the upper edge of this wall and the adjacent edge of a false ceiling.

FIG. 6 schematically mounts a side wall made of rigid plastic plates preferably made up of

Expanded PVC. Use is preferably made of plates 24, 25 having a height equal to that of the wall to be produced, that is to say for example 2.5 m and a width of about 1.2 m.

These plates are joined together with beams 26, 27, 28 preferably mounted vertically.

As shown in FIG. 7 which is a view along F2 of a section of FIG. 6 along the layout plane X2-X2, the beams 26, 27,

28 are of the same section as the beams 5, 6, 7 of FIGS. 1, 2 and 3 and have ends 29, 30 which engage inside two profiles in

U 31, 32. These frame the top and bottom of the partition.

The two U-shaped sections 31 and 32 form part of the structure of the partition and the beams 26, 27, 28 therefore become included in the structural components of this partition.

As shown in FIG. 7, a self-drilling screw 33, driven into the top of the plate 24, provides a connection between the upper end 29 of the beam 26 and the partition profile 31. Likewise at the lower end 30 of this same beam, a screw 33-1 provides the connection between the plate 24, the beam 26 and the partition profile 32.

We see in Figure 6 that the rigid plastic plates 24, 25 constituting the side wall are fixed to the partition profiles 31 and 32 by a row of self-drilling screws at the upper and lower ends of each plate and not only opposite the ends of each beam.

Similarly, the connection between each beam and the plate which comes to bear against it, is provided by several self-drilling screws, for example distributed every 0.4 m along each beam.

Other arrangements of plates and beams can be provided. One can for example, arrange the plates transversely, the beams can keep or not their vertical orientation.

However, as shown in Figures 6 and 7, the possibility of connecting the edge of the false ceiling to the upper end of a single side plate has a definite advantage.

In the case of FIG. 6, the end zones 34, 35 of the two plates of the false ceiling are maintained by a row of self-drilling screws, located in the cutting plane X3-X3 of FIG. 7, such as the screw 36 of Figure 7, which secures these end zones with a horizontal wing 37, an angle. This angle also has a vertical wing 39, secured by screws 40 with a structural component 41 of the side wall.

FIG. 7 shows that the height of the false ceiling is adjusted so that the edges of these end regions 34, 35 of the false ceiling are adjacent to the upper edges 38 of the side plates 24, 25. By way of example, the edge upper 38 is cut at a right angle, while the adjacent edge 42 is cut at about 45 ° in order to form an opening in

V along the entire length of these edges. The narrow end of this V-shaped opening opens inwards, with a clearance of 1 to 5 mm. After final installation of the false ceiling and the side wall, a binder is injected into this opening in

V, preferably a silicone, over its entire length and likewise, each of the small depressions, such as 10-1, formed at the level of screws in the wall of the plates is filled with binder.

After setting the binder, a fine grinding final fine eliminates all the extra thickness from this binder. Although the present example relates to an interior wall forming a false ceiling assigned to a lateral interior wall, it is understood that only one of these walls can be produced.

It is also understood that it is possible to cover several side walls or even all of the side walls of a room, with or without false ceiling by means of the interior walls according to the invention.

Despite the advantages described above, PVC, and in particular expanded PVC, it is understood that other synthetic materials, expanded or not, can be used in the form of rigid plates for the production of lateral internal walls or forming false ceilings, depending on the 'invention.

Although these interior walls are most often made in the form of flat plates, it is also possible to use rigid plates of expanded or unexpanded synthetic material, having undergone a prior forming, for example for the production of cornices located at the edge of 'a false ceiling.

It is also possible to use plates having undergone a more or less pronounced bending, and to use curved beams also to support these plates and ensure the connection with a partition. side or a ceiling tile although the beams which hold the rigid plastic plates are most often made of galvanized steel. Other metals or alloys can be used, for example, aluminum alloyed or not, or even stainless steel. You can also use wood or synthetic beams. Although the examples and figures described above use self-drilling screws to secure the plastic plates with the beams, it is also possible to use suitable adhesives to achieve such attachment. Such an attachment is particularly advantageous when the beams are themselves made of synthetic material or composite materials.

Claims

1. Inner side wall or forming a false ceiling, of a room in a building, characterized in that it consists of rigid plates (1, 2, 24, 25) of synthetic material, arranged side by side, reserving a slight clearance between their adjacent edges (3, 4, 38, 42), these plates being secured by connecting means (10, 24-1, 33, 33-1) with beams (5,6,7; 26 , 27,28) themselves connected to the corresponding wall (17, 41) of the part, a binder housed in the clearance reserved between the plastic plates improving the stability of the internal wall and avoiding surface discontinuities.

2. Inner wall according to claim 1, characterized in that the adjacent edges (3, 4, 38, 42) of the rigid plates (1, 2, 24, 25) of synthetic material, are cut so as to present, after placing in place, a longitudinal interval having a cross section in V, oriented so as to converge towards the interior of the part, the minimum clearance at the tip of this V being from 1 to 5 mm.

3. Inner wall according to claim 1 or 2, characterized in that the binder housed between the adjacent edges (3, 4, 38, 42) of the rigid plates (1, 2; 24.25) of synthetic material is based on silicone.

4. Inner wall according to one of claims 1 to 3, characterized in that, when it forms a false ceiling of a room, it is suspended by metal rods (14, 15, 16) from the resistant wall ( 17) from the ceiling of the room, these rods being connected by their lower ends to the beams (5, 6, 7) with which the rigid plates (1, 2) of synthetic material are secured.

5. Inner wall according to one of claims 1 to 4, characterized in that, when it covers at least one of the side walls of a room, the beams (26, 27, 28), with which the plates are secured rigid (24, 25) plastic, are themselves secured with at least one structural component (31, 32) of the side wall covered by this inner wall.

6. Inner wall according to one of claims 1 to 5, characterized in that the rigid plates (1, 2; 24.25) of synthetic material which constitute it are made of expanded polyvinyl chloride with a density between 0.3 and 1, 2.

7. A method of producing an interior wall of a room in a building, characterized in that rigid plates (1, 2; 24.25) of synthetic material are placed side by side, then in that they are secured with beams (5,6,7; 26,27,28) suitably placed, reserving a small clearance between the adjacent edges (3,4; 38,42) of these plates, these beams having been connected to a resistant wall (17, 31, 32) of the part and in that there is housed in the clearance between the adjacent edges of the plates an iiant introduced from the inside.

8. Method according to claim 7, characterized in that the joining of the rigid plates (1, 2; 24.25) of synthetic material with the beams (5,6,7; 26,27,28) is carried out by means of screws (10, 33, 33-1) whose tightening is continued until the screw heads penetrate below the surface of the wall opposite the interior of the part and in that the depressions thus created ( 10-1) are then filled with a binder and in that, after hardening of the binder, a fine grinding is carried out of the surface of the wall facing the interior of the part by eliminating the beads formed at the level of the head screws as well as those formed by the same binder, by passing through the small clearance existing between the adjacent edges (3,4; 38,42) of the rigid plates (1, 2; 24,25).

9. Method according to claim 7 or 8, characterized in that the rigid plastic plates used are made of expanded polyvinyl chloride with a density between 0.3 and 1, 2 and in that after fine grinding is carried out a surface treatment with the application of a paint, varnish or lacquer.