EP0449734B1 - Section used particularly to compensate the relative displacements of a floor covering in relation to an adjacent wall and method for its fabrication - Google Patents

Abstract

According to the invention, this strip comprises: a generally flat sole (1); two main arms (2, 3) which arise from the sole (1), perpendicularly to it; a bridge (5) for linking the ends of the said main arms (2, 3) and two secondary arms (6, 7) which extend parallel to the sole (1) from the main arm (3) which is furthest away from the free edge (1C) of the sole, these two secondary arms having substantially equal widths (L); the sole (1) and the main arms (2, 3) being produced from a semi-rigid, hard material and the linking bridge (5) being produced from a flexible material. <??>One application is the production of the zone for connecting a flooring and a partition wall which are tiled. <IMAGE>

Description

The field of the invention is first illustrated by the following example. Tiles laid with traditional cement mortar or glued with adhesive mortar undergo tension, expansion or shrinkage, thus varying their dimensions. These tensions can have two main origins, either thermal or physical. Indeed, the slabs supporting the tiles can cause them in inevitable dimensional variations, when making a new building, for example. These tensions thus cause cracks and cracking on the surface of the tiles, and sometimes sometimes detachments. It is therefore necessary to provide flexible joints inserted into the very surface of the tiling to allow it to withstand dimensional variations and movements.

For this purpose, there are profiles forming joints, claiming to solve these problems. Unfortunately, some do not have the characteristics to assume good use of tiling, and others are recommended to be placed in the center of the rooms and have an unsightly effect.

The invention aims to provide a profile allowing a satisfactory final embodiment.

The invention therefore firstly relates to a profile intended in particular for compensating for the relative displacements of surface coatings, such as in particular the displacements-shrinkages and expansions of floor coverings, and comprising a sole, generally flat; two main branches substantially parallel to each other, which stand perpendicular thereto; and a bridge connecting the ends of said main branches furthest from the sole; the sole and the two main branches being made of a hard, semi-rigid material, such as a hard, semi-rigid "PVC", and the connecting bridge being made of a flexible material, such as a "PVC" flexible. (EP-A- 165611)

According to the invention, this profile is intended to compensate for the relative displacement of the floor coverings relative to the walls and adjacent partitions, while the two main branches are erected in an end zone of the sole and two secondary branches extend substantially parallel to the sole, from the face which is furthest from the selvedge free from the sole, from the main branch, itself furthest from said free edge of the sole, these two secondary branches extending in the opposite direction to that in which the sole extends, having substantially equal widths .

• les branches secondaires sont réalisées soit en un matériau dur, semi rigide, tel qu'un "PVC" dur, semi rigide, soit en un matériau souple, tel qu'un "PVC" souple ;
• les extrémités des branches principales opposées à la semelle, la face externe du pont de liaison, et la face externe de la branche secondaire la plus éloignée de la semelle sont sensiblement coplanaires ;
• la largeur des branches secondaires est comprise entre 0,4 et 0,6 fois la distance séparant les faces extérieures des deux branches principales, en étant de préférence sensiblement égale à 0,5 fois cette distance ;
• en outre, une structure de liaison, ayant la forme d'un V, contenue entre lesdites branches principales, relient celles-ci ;
• la partie de la semelle comprise entre les deux branches principales forme un V renversé, dont la pointe est contenue entre les deux dites branches principales ;
• les extrémités des branches du V de ladite structure de liaison sont raccordées aux parties médianes des faces internes desdites branches principales ;
• la structure en V est monobloc avec lesdites branches principales ;
• ledit pont de liaison est conformé en un trapèze dont les côtés reliant ses bases parallèles sont raccordés à des proéminences dont sont munies les faces internes desdites branches principales ;
• la face extérieure de la branche principale la plus proche de la lisière libre de la semelle est striée sur la totalité de sa longueur et de sa hauteur ;
• la semelle d'appui présente des perforations conformées, chacune, en deux trapèzes égaux ayant leurs petites bases confondues en une petite base commune, ces diverses perforations étant séparées par des parties pleines ;
• ce profilé possède les dimensions suivantes : a) la petite base commune des trapèzes d'une perforation a une longueur qui est supérieure à la moitié de la longueur d'une grande base ; b) la largeur d'une perforation, égale à la somme des hauteurs des deux trapèzes la constituant, est comprise entre 0,5 et 1 fois la longueur de la grande base d'un trapèze ; c) la distance de la partie pleine séparant les pointes de deux grandes bases des trapèzes de deux perforations successives est comprise entre 0,4 et 0,6 fois la longueur de la grande base d'un trapèze ;
• lesdits trapèzes sont des trapèzes isocèles ;
• la face inférieure de la semelle d'appui comporte des stries parallèles sur la totalité de sa longueur et de sa largeur ;
• la face supérieure des parties pleines de la semelle d'appui comporte des stries parallèles sur la totalité de sa longueur et de sa largeur.

In addition, the following advantageous arrangements are preferably adopted:

• the secondary branches are made either of a hard, semi-rigid material, such as a hard, semi-rigid "PVC", or of a flexible material, such as a flexible "PVC";
• the ends of the main branches opposite the sole, the external face of the connecting bridge, and the external face of the secondary branch furthest from the sole are substantially coplanar;
• the width of the secondary branches is between 0.4 and 0.6 times the distance separating the external faces of the two main branches, preferably being substantially equal to 0.5 times this distance;
• in addition, a connecting structure, in the shape of a V, contained between said main branches, connect these;
• the part of the sole between the two main branches forms an inverted V, the point of which is contained between the two said main branches;
• the ends of the branches of the V of said connecting structure are connected to the middle parts of the internal faces of said main branches;
• the V-shaped structure is in one piece with said main branches;
• said connecting bridge is shaped like a trapezoid whose sides connecting its parallel bases are connected to prominences with which the internal faces of said main branches are provided;
• the outer face of the main branch closest to the free edge of the sole is striated over its entire length and height;
• the support sole has perforations shaped, each in two equal trapezoids having their small bases merged into a small common base, these various perforations being separated by solid parts;
• this profile has the following dimensions: a) the small common base of the trapezoids of a perforation has a length which is greater than half the length of a large base; b) the width of a perforation, equal to the sum of the heights of the two trapezoids constituting it, is between 0.5 and 1 times the length of the large base of a trapezoid; c) the distance of the solid part separating the points of two large bases from the trapezoids of two successive perforations is between 0.4 and 0.6 times the length of the large base of a trapezoid;
• said trapezoids are isosceles trapezoids;
• the underside of the support sole has parallel ridges over its entire length and width;
• the upper face of the solid parts of the support sole has parallel ridges over its entire length and width.

The invention also relates to a method of manufacturing a profile as defined above according to which this profile is produced by simultaneous extrusions of the materials constituting it.

Preferably, said extrusions are carried out hot.

The main advantage of the profiles in accordance with the invention resides in the separation obtained from the floor covering with respect to the walls and adjacent partitions, of course while retaining an external appearance achieving a satisfactory and durable finish of the connection areas of said covering. floor with said walls and partitions.

The invention will be better understood, and secondary characteristics and their advantages will appear during the description of embodiments given below by way of example.

It is understood that the description and the drawings are given for information only and are not limiting.

• la figure 1 est une coupe, suivant I-I de la figure 2, d'un profilé conforme à une première variante de réalisation de l'invention ;
• la figure 2 est une vue suivant flèche F de la figure 1 ;
• les figures 3 et 4 sont des coupes, analogues celle de la figure 1, de deux autres variantes de réalisation également conformes à l'invention ; et
• la figure 5 est une coupe d'un sol et d'une cloison, et du profilé des figures 1 et 2 utilisé dans la zone de raccordement du sol et de la cloison.

Reference will be made to the accompanying drawings, in which:

• Figure 1 is a section along II of Figure 2, a profile according to a first embodiment of the invention;
• Figure 2 is a view along arrow F of Figure 1;
• Figures 3 and 4 are sections, similar to that of Figure 1, of two other alternative embodiments also according to the invention; and
• Figure 5 is a section of a floor and a partition, and the profile of Figures 1 and 2 used in the connection area of the floor and the partition.

• une semelle 1, généralement plate ;
• deux branches principales 2, 3 sensiblement parallèles entre elles, qui s'érigent à partir de la face supérieure 1A d'une zone d'extrémité de la semelle 1, perpendiculairement à celle-ci ;
• un pont de liaison 5 des extrémités des branches principales 2, 3 les plus éloignées de la semelle 1 ; et
• deux branches secondaires 6, 7, qui s'étendent sensiblement parallèlement à la semelle 1, à partir de la face 3B, qui est la plus éloignée de la lisière libre 1C de la semelle 1, de la branche principale 3 elle-même la plus éloignée de ladite lisière libre 1C, ces deux branches secondaires 6, 7 s'étendant dans le sens G1 opposé à celui G2 dans lequel s'étend la semelle et ayant des largeurs sensiblement égales à une même valeur L ;
• la semelle 1, les deux branches principales 2, 3 et les deux branches secondaires 6, 7 sont réalisées en un matériau dur, semi-rigide, ici un "PVC" dur, semi-rigide, et le pont de liaison 5 est réalisé en un matériau souple, ici "PVC" souple.

The profile shown in Figures 1 and 2 includes:

• a sole 1, generally flat;
• two main branches 2, 3 substantially parallel to each other, which are erected from the upper face 1A of an end zone of the sole 1, perpendicular thereto;
• a connecting bridge 5 of the ends of the main branches 2, 3 furthest from the sole 1; and
• two secondary branches 6, 7, which extend substantially parallel to the sole 1, from the face 3B, which is the furthest from the free edge 1C of the sole 1, from the main branch 3 itself most remote from said free edge 1C, these two secondary branches 6, 7 extending in the direction G1 opposite to that G2 in which the sole extends and having widths substantially equal to the same value L;
• the sole 1, the two main branches 2, 3 and the two secondary branches 6, 7 are made of a hard, semi-rigid material, here a hard, semi-rigid "PVC", and the connecting bridge 5 is made of a flexible material, here flexible "PVC".

• les extrémités 2A, 3A des branches principales 2, 3 opposées à la semelle 1, la face externe 5A du pont de liaison 5, et la face externe 6A de la branche secondaire 6 la plus éloignée de la semelle 1 sont contenues dans un même plan P ;
• la largeur L des branches secondaires 6, 7 est comprise entre 0,4 et 0,6 fois la distance D séparant les faces extérieures 2B et 3B des deux branches principales 2, 3, en étant, dans l'exemple représenté, égale à 0,5 fois cette distance D ;
• la partie de la semelle comprise entre les deux branches principales 2, 3 forme un V renversé 13, dont la pointe 13A est contenue entre les deux dites branches principales 2, 3,
• la face extérieure 2B de la branche principale 2 la plus proche de la lisière libre 1C de la semelle 1 est munie de striures sur la totalité de sa longueur et de sa hauteur ;
• la semelle d'appui 1 présente des perforations 4 conformées, chacune, en deux trapèzes égaux ayant leurs petites bases confondues en une petite base commune 41, ces diverses perforations 4 étant séparées par des parties pleines ;
• la petite base commune 41 des trapèzes d'une perforation a une longueur LP41, qui est supérieure à la moitié de la longueur LG42 d'une grande base 42 ;
• la largeur L4 d'une perforation 4, égale à la somme des hauteurs des deux trapèzes la constituant, est comprise entre 0,5 et 1 fois la longueur LG42 de la grande base 42 d'un trapèze ;
• la distance L43 de la partie pleine séparant les pointes 43 de deux grandes bases 42 des trapèzes de deux perforations 4 successives est comprise entre 0,4 et 0,6 fois la longueur LG42 de la grande base 42 d'un trapèze, ici égale à 0,5 fois LG42 ;
• lesdits trapèzes sont des trapèzes isocèles ; la face inférieure 1B de la semelle d'appui 1 comporte des stries parallèles sur la totalité de sa longueur et de sa largeur ;
• la face supérieure 1A des parties pleines de la semelle d'appui 1 comporte des stries parallèles sur la totalité de sa longueur et de sa largeur.

The following provisions are also adopted:

• the ends 2A, 3A of the main branches 2, 3 opposite the sole 1, the external face 5A of the connecting bridge 5, and the external face 6A of the secondary branch 6 furthest from the sole 1 are contained in the same plane P;
• the width L of the secondary branches 6, 7 is between 0.4 and 0.6 times the distance D separating the external faces 2B and 3B of the two main branches 2, 3, being, in the example shown, equal to 0 , 5 times this distance D;
• the part of the sole between the two main branches 2, 3 forms an inverted V 13, the tip 13A of which is contained between the two said main branches 2, 3,
• the outer face 2B of the main branch 2 closest to the free edge 1C of the sole 1 is provided with striations over its entire length and height;
• the support sole 1 has perforations 4 shaped, each in two equal trapezoids having their small bases merged into a small common base 41, these various perforations 4 being separated by solid parts;
• the small common base 41 of the trapezoids of a perforation has a length LP41, which is greater than half the length LG42 of a large base 42;
• the width L4 of a perforation 4, equal to the sum of the heights of the two trapezoids constituting it, is between 0.5 and 1 times the length LG42 of the large base 42 of a trapezoid;
• the distance L43 from the solid part separating the points 43 of two large bases 42 from the trapezoids of two successive perforations 4 is between 0.4 and 0.6 times the length LG42 of the large base 42 of a trapezoid, here equal to 0.5 times LG42;
• said trapezoids are isosceles trapezoids; the lower face 1B of the support sole 1 has parallel ridges over its entire length and width;
• the upper face 1A of the solid parts of the support sole 1 has parallel ridges over its entire length and width.

It can be noted, with reference to FIGS. 1, 2 and 5, that the perforations 4 have a shape having four angles 43 constituting anchoring corners, which allow perfect sealing in the adhesive mortar 8 for laying the tiles 9 which covers the slab 10 with a concrete floor. Thus, the profile is firmly fixed and permanently immobilized with respect to the tiles 9. The ends 6B, 7B of these secondary branches 6, 7 are only supported on the face 11A of the partition 11, which is covered with a fixed tile 12 with the adhesive mortar 8. The lower edge 12A of the tiling 12 is arranged opposite, and practically contiguous with the plane P of the faces 2A, 5A, 3A and 6A, without being fixed to the profile. There is therefore a complete separation of the profile from the partition 11 and from the tiling 12 covering it.

As also, this profile is well fixed to the mortar 8 connecting the tiles 9 to the slab 10 of the floor, it follows the movements of the floor and produces a sliding joint which permanently retains a satisfactory appearance. Note that the elastic bridge 5 allows a certain horizontal flexibility of the profile, while the main branches 2, 3, and secondary 6, 7, rigid, ensure perfect vertical support of the lower part of the tiling 12.

As a variant, the profile can be produced as shown with reference to FIGS. 3 and 4.

• la structure en V 13, qui relie les branches principales 2 et 3, est orientée la pointe du V étant dirigée normalement vers le bas, les branches 13B du V étant raccordées aux parties médianes des faces internes 2C et 3C desdites branches principales 2 et 3 ;
• cette structure en V est monobloc et réalisée en même temps et dans le même matériau que les branches principales 2 et 3, ici, en "PVC" dur, semi-rigide ;
• les branches secondaires 6 et 7 sont réalisées en un matériau différent de celui des branches principales 2 et 3, ici réalisées en un "PVC" souple, plus généralement en un matériau souple, et sont raccordées à la face externe 3B de la branche principale 3 ;
• le pont de liaison 5 a une section droite en forme de trapèze, ici de trapèze isocèle, dont les côtés 5B relient les deux bases parallèles 5A et 5C, ces bases s'étendant en outre parallèlement à la semelle 1, la base supérieure 5A étant contenue dans le plan P, qui contient également les extrémités supérieures 2A, 3A des branches principales 2, 3, respectivement, et la face externe 6A de la branche secondaire 6 ;
• le pont de liaison 5 a ses côtés 5B appliqués sur les faces de proéminence pointues 2D, 3D érigées à partir des faces internes 2C, 3C des branches principales 2, 3.

In these figures, it can be observed that the variants of the profile include the characteristics of the profile of Figures 1 and 2, identified by the same reference numbers, except for the following points:

• the V-shaped structure 13, which connects the main branches 2 and 3, is oriented, the point of the V being directed normally downwards, the branches 13B of the V being connected to the middle parts of the internal faces 2C and 3C of said main branches 2 and 3 ;
• this V-shaped structure is in one piece and produced at the same time and in the same material as the main branches 2 and 3, here, in hard, semi-rigid "PVC";
• the secondary branches 6 and 7 are made of a material different from that of the main branches 2 and 3, here made of a flexible "PVC", more generally of a flexible material, and are connected to the external face 3B of the main branch 3 ;
• the connecting bridge 5 has a cross section in the shape of a trapezoid, here of an isosceles trapezoid, the sides 5B of which connect the two parallel bases 5A and 5C, these bases further extending parallel to the sole 1, the upper base 5A being contained in the plane P, which also contains the upper ends 2A, 3A of the main branches 2, 3, respectively, and the external face 6A of the secondary branch 6;
• the connecting bridge 5 has its sides 5B applied to the pointed prominence faces 2D, 3D erected from the internal faces 2C, 3C of the main branches 2, 3.

According to the embodiment of FIG. 3, the large base of the trapezium of the connecting bridge 5 constitutes the upper base 5A of the trapezium, and the prominent 2D, 3D are connected to the internal faces 2C of the main branches 2, 3 each, by two oblique sections , respectively.

According to the embodiment of FIG. 4, the small base of the trapezoid of the connecting bridge 5 constitutes the upper base 5A of the trapezoid, and the prominent 2D, 3D are connected to the internal faces 2C of the main branches 2, 3, each by a pan oblique and by the end 2A, 3A of the corresponding main branch, respectively.

In each of the embodiments of FIGS. 1 and 2, of FIG. 3, and of FIG. 4, the profile is obtained by simultaneous extrusions of two materials - "hard PVC" and "flexible PVC" - the constituent, extrusions carried out hot in concerning the tests actually carried out.

Thus, the profile of Figures 1 and 2 results from simultaneous extrusions, on the one hand, of the material constituting the sole 1-13, the main branches 2, 3 and the secondary branches 6, 7, on the other hand, of the material the link bridge 5.

The profiles of Figures 3, 4 are each obtained by simultaneous extrusions, on the one hand, of the material constituting the sole 1, the main branches 2, 3 and the V-structure 13, on the other hand, of the material constituting the secondary branches 6, 7 and the connecting bridge 5. Note that the secondary branches 6, 7 and the connecting bridge 5 are, in these two variants, produced in the same material.

The invention is not limited to the embodiments described, but on the contrary covers all the variants which could be made to them without departing from their scope or their spirit.

Claims (17)

1. Profiled strip particularly adapted to compensate the relative displacements of surface coverings, such as in particular the shrinking and expanding movements of floor coverings, comprising:

   - a generally flat sole plate (1);

   - two principal limbs (2, 3) substantially parallel to each other which extend perpendicularly thereto; and

   - a bridge (5) for connecting the ends (2A, 3A) of said principal limbs (2, 3) most remote from the sole plate (1); the sole plate (1) and the two principal limbs (2, 3) being made of a hard, semi-rigid material such as hard, semi-rigid PVC, and the connecting bridge (5) being made of a supple material such as a supple PVC;

   characterized in that this profiled strip is adapted to compensate the relative displacements of floor coverings with respect to the adjacent walls and partitions;
   in that the two said principal limbs (2, 3) extend in an end zone of the sole plate (1); and
   in that two secondary limbs (6, 7) extend substantially parallel to the sole plate (1), from the face (3B) most remote from the free edge (1C) of the sole plate (1), of the principal limb (3), itself most remote from said free edge (1C) of the sole plate (1), these two secondary limbs (6, 7) extending in the direction (G1) opposite the one (G2) in which the sole plate (1) extends, having substantially equal widths (L).
2. Profiled strip according to claim 1, characterized in that the secondary limbs (6, 7) are made of a hard, semi-rigid material such as a hard, semi-rigid PVC.
3. Profiled strip according to claim 1, characterized in that the secondary limbs (6, 7) are made of a supple material, such as a supple PVC.
4. Profiled strip according to any one of claims 1 to 3, characterized in that the ends (2A, 3A) of the principal limbs (2, 3) opposite the sole plate, the outer face (5A) of the connecting bridge (5), and the outer face (6A) of the secondary limbs (6) most remote from the sole plate (1) substantially coplanar (P).
5. Profiled strip according to any one of claims 1 to 4, characterized in that the width (L) of the secondary limbs (6, 7) is included between 0.4 and 0.6 times the distance (D) separating the outer faces (2B, 3B) of the two principal limbs (2, 3), peferably being substantially equal to 0.5 times this distance (D).
6. Profiled strip according to any one of claims 1 to 5, characterized in that, in addition, a connecting structure (13), having the form of a V, contained between said principal limbs (2, 3), connects the latter.
7. Profiled strip according to claim 6, characterized in that the ends of the arms (13B) of the V of said connecting structure (13) are connected to the median parts of the inner faces (2C, 3C) of said principal limbs (2, 3).
8. Profiled strip according to any one of claims 6 and 7, characterized in that the V structure (13) is monobloc with said principal limbs (2, 3).
9. Profiled strip according to any one of claims 1 to 8, characterized in that said connecting bridge (5) is shaped as a trapezium of which the sides (5B) connecting its parallel bases (5A, 5C), are connected to projections (2D, 3D) with which the inner faces (2C, 3C) of said principal limbs (2, 3) are provided.
10. Profiled strip according to any one of claims 1 to 9, characterized in that the outer face (2B) of the principal limb (2) closest to the free edge (1C) of the sole plate (1) is striated over the whole of its length and height.
11. Profiled strip according to any one of claims 1 to 10, characterized in that the bearing sole plate (1) presents perforations (4) each shaped as two equal trapezia having their small bases merged into a common small base (41), these various perforations (4) being separated by solid parts.
12. Profiled strip according to claim 11, characterized in that it presents the following dimensions:

    a) the common small base (41) of the trapezia of a perforation has a length (LP41) which is greater than half the length (LG42) of a large base (42);

    b) the width (L4) of a perforation (4), equal to the sum of the heights of the two trapezia constituting it, is included between 0.5 and 1 times the length (LG42) of the large base (42) of a trapezium;

    c) the distance (L43) of the solid part separating the angles (43) of two large bases (42) of the trapezia of two successive perforations (4) is included between 0.4 and 0.6 times the length (LG42) of the large base (42) of a trapezium.
13. Profiled strip according to any one of claims 11 and 12, characterized in that said trapezia are isosceles trapezia.
14. Profiled strip according to any one of claims 1 to 13, characterized in that the lower face (1B) of the bearing sole plate (1) comprises parallel striae over the whole of its length and width.
15. Profiled strip according to any one of claims 1 to 14, characterized in that the upper face (1A) of the solid parts of the bearing sole plate (1) comprises parallel striae over the whole of its length and width.
16. Process for manufacturing a profiled strip according to any one of claims 1 to 15, characterized in that it is made by extruding the materials constituting it, simultaneously.
17. Process according to claim 16, characterized in that said extrusions are effected hot.

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