FR2622233A1 - SLAB FOR SECURE FLOOR - Google Patents

Abstract

The present invention relates to a slab for a floor raised up in relation to a load-bearing ground. According to the invention, the sectional slab comprises a panel (3), a peripheral fitting (4) protecting the edge (3a) of the panel, made of a plastic material, and having the shape of a profile. The latter has, in cross-section, on the one hand, a web and, on the other hand, adjacently to the face (1a) of the slab, a sealing element (4b) of lower hardness than that of the material constituting the web (4a) and capable of creating imperviousness to fluids by pressure between the edge of the panel and the internal face of the fitting.

Description

SLAB FOR SECURE FLOOR

  The present invention relates to a slab for

  expensive elevated compared to a bearing floor.

  The invention is in the field of technical floors raised above a load bearing floor, whether new or fitted, and obtained by:

  - laying on the ground a plurality of cylinders, de-

  terminating between them a grid of the carrier ground - possibly, by assembling the jacks between

  they, by means of reinforcing sleepers, connecting the dif-

  various cylinders; - depositing slabs, joined, based on the

  cylinders, and possibly the sleepers, a sup-

  cross-bearing four corners belonging to four

  slabs respectively different but adjacent.

  In general, a slab intended for a plan-

  expensive technique, comprises, on the one hand a lower face vis-à-vis the soi soi, constituted or not by a plate or a metal film, and on the other hand an opposite upper face, coated for example by a laminate, on which machines or furniture are

  posed, and on which people walk.

  We already know a slab of the aforementioned type, having a shape and modular dimensions, for example of square shape, and consisting of: a panel of agglomerated wood particles, high density; a peripheral lining protecting the edge of this panel, made of plastic material, for example PVC, and having the shape of a profile; the latter presents in 2- straight section a soul extending in height, from the level of the upper face of the panel to that of the face

bottom of the same panel.

  When these slabs are assembled 3oln- tive, on the cylinders defined above, the floor

  obtained technique generally presents defects in

  chéité. On the one hand, water or moisture can be

  between the lining and the edge of the panel, and penetrate the heart of the particles of agglomerated wood which causes a swelling or a final deterioration of the slab. On the other hand, there may be air leakage between the various slabs assembled; which is a disadvantage when for example we want to ensure air circulation in the

  plenum located between the carrier floor and the technical floor

  Picnic. The present invention proposes to remedy

  sealing defects of the slabs defined above.

  More particularly, the subject of the invention is a slab having a water and airtightness,

  when the technical floor is assembled.

  According to the invention, watertightness

  is ensured in the following way.

  The lining has, adjacent to the upper face of the slab, a bead protruding from the web of the profile towards the edge of the panel, of hardness less than that of the material constituting the core, and capable of sealing the liquids , by

pressure against the panel.

  To seal the air, the outer face of

  the soul of the profile comprises a peripheral lip, intended

  born to overlap the homologous and adjacent lip of a

assembled panel neighbor.

  The present invention is now described with reference to the appended drawing, in which FIG. 1 represents a vertical sectional view of two slabs according to the invention, adjacent, and assembled in such a manner

  joined to form a technical floor.

  According to the invention, each slab (1) or

  (2) comprises a panel (3) of agglomerated wood particles

  high density mounds, cut for example in square form. A peripheral liner (4) protects the edge (3a) of the panel; this lining is made of plastic material, for example PVC, and has the shape of a profile. As shown in Figure 1, this section has in cross section a core (4a) extending in height from the level of the upper face (la) to that of

  the lower face (lb) of the slab (1) for example.

  Adjacent to the upper face (la), a projecting bead (4b) is located between the core (4a) of the profile and the edge (3a) of the panel (3). This cord has a hardness lower than that of the material constituting the core (4a), and is for example obtained in nitrile PVC elastomer. This cord (4b) is capable of sealing the liquid, by pressure between the edge (3a) of the panel and the inner face (4c) of the liner (4). The lining (4) is therefore a bi-material profile, monobloc, the bead material (4b) having a hardness less than that of the material of the core (4a). Such a lining is obtained by coextrusion of two different materials, namely respectively a PVC and a PVC-nitrile, the first corresponding to the core (4a), and

  the second to the sealing bead (4b).

  The sealing bead (4b) is compressed, or even

  curved towards the edge (3a) of the panel (3), due to the pressure applied by the lining (4), under the effect

  fixing means described below.

  The profile (4) has two flanges (4d) and (4e), the first upper and adjacent to the upper face (la), and the second lower and adjacent to the lower face (lb). These two edges are supported on the edge (3a) of the panel (3), and provide a gap (5)

  between the latter and the inner face (4c) of the soul (4a).

  The cord (4b) emerges, obliquely with respect to the core (4a), at the level of the stop between the latter and - e

top edge (4d).

  At the lower part of the profile (4), adjacent to the lower face (1b), the web (4a), and more precisely the lower edge (4e), are continuous with a right-angled wing (4f) directed towards the center of the panel (3), and forming a support angle on the part

lower panel (3).

  A groove (3c), perpendicular to the edge (3a) of the

  panel (3), is provided continuously in this

  deny, from the above-mentioned song (3a). A plurality of

  tones (4g) emerge from the inner face (4c) of the core (4a), and comprise annular crimping beads. The lining (4) is assembled to a panel (3), in

  bearing in a lower notch of the same pan-

  water, thanks to the angle (4f), and by taking -5- pins (4g) in the groove (3c). This fitting compresses the cord (4b) when the rim

  (4d) comes into contact with the song (3a).

  The outer face (4h) of the core (4a) of the profile

  carries a body allowing and facilitating the assembly

  the different panels (1) and (2).

  A metal plate (6), reinforcement is glued on the underside (lb) of the slab, and complete

  the assembly of the lining (4) on the panel (3).

  At the level of the body, the external face (4h) of

  the core (4a) of the profile (4) has a peripheral lip

  - that (4i), directed obliquely downward, overlapping the homologous and adjacent lip of the panel (2) assembled and adjacent. Each lip has a triangular profile. The two overlapping lips complement or replace the sealing of the two upper right edges of the linings (4) belonging to two adjacent adjacent panels.

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Claims (7)

  1 / tile (1) for raised floor relative to the carrier floor, with a lower face (lb) vis-à-vis the latter, and an opposite upper face (la), comprising a panel (3), a trim (4) device protecting the edge (3a) of said panel, made of plastic material, and having the shape of a profile, the latter presenting in cross-section a core (4a) extending in height from the level of the upper face ( 1a) to that of the lower face (1b), characterized in that the lining (4) has, adjacent to the upper face (1a), a bead (4b) projecting from the core (4a) of the profile ( 4) towards the edge (3a) of the panel, of lesser hardness than the material constituting the core, and capable of sealing the liquids, by pressing against the panel.   2 / tile according to claim 1, characterized in that the lining (4) is a bil-mateière section, monobloc, the cord material (4b) having a hardness   less than the material of the core (4a).   3 / tile according to claim 2, characterized in that the lining (4) is obtained by co-extrusion of two different materials, the first corresponding to the core (4a) of the profile, and the second to the bead sealing (4b).   4 / tile according to claim 1, characterized in that the sealing bead (4b) is located between the core (4a) of the profile (4) and the edge (3a) of the panel, and is sealed to liquids by pressure between singing and   the inner face (4c) of the liner.   -7- / tile according to claim 1, characterized in that the profile (4) has two flanges (4d, 4e), respectively adjacent to the upper faces (la) and lower (Ib) of the panel (3), resting on the song (3a) of the latter, and leaving a gap (5) between   the latter and the inner face (4c) of the core (4a).   6 / tile according to claim 5, characterized in that the cord (4b) emerges, obliquely relative to the core (4a), between the latter and the upper edge (4d). 7 / tile according to claim 1, characterized in that the lower part of the profile (4) adjacent to the inferior face (lb), the core (4a) is continuous with a wing (4f) at right angles, directed towards the center of the panel (3), and forming a cornelet of support on the part lnferleure of said panel.   8 / tile according to claim 7, characterized in that, firstly a groove (3c) is formed in the panel (3), from the edge, and secondly a plurality of nipples (4g) crimping , emerge from the inner face (4c) of the soul (4a), and are fitted into said groove.   9 / slab according to claim 1, characterized in that the outer face (4h) of the web of the profile comprises a peripheral lip (4i) intended to overlap the homologous and adjacent lip, a neighboring assembled panel. Slab according to claim 9, characterized in that   what each lip (4i) has a triangular profile.