FR2701282A1 - Process for the production of coating, coating and its method of laying - Google Patents

Abstract

The present invention relates principally to a method of producing a covering (1), particularly for floors, to a covering obtained by means of this method, as well as to a method of laying the said covering. According to the invention, grooves (2) are made, for example in sheets of wood, which are filled with flexible adhesive (3). After the adhesive has set, an ablation of the material between the grooves, advantageously over a depth less than the depth of the groove, uncovers the projecting contact strips.

Description

COATING PROCESS,

COATING AND METHOD OF INSTALLATION

  The present invention relates mainly to a method of producing a coating, especially for floors, with a coating

  obtained by this method, as well as a method of laying said coating.

  The man has always sought to cover the walls of homes, including walls, especially the floors, with a coating of pleasant appearance and good acoustic insulation and / or

thermal.

  EP 0 309 356 discloses a method of manufacturing a wood material comprising the steps of: a) grooving wooden boards; b) fill the grooves with a colored glue; c) glue the boards of wood; d) cutting into the block formed by the superposition of wooden boards whose grooves are filled with glue, slices forming

  boards or slats of a floor covering material.

  This patent describes the possibility of using insulating glue providing sound insulation. However, this acoustic insulation may be insufficient in noisy environments, particularly in

  buildings whose floors have poor sound insulation.

  It is therefore an object of the present invention to provide a coating which has the desired acoustic qualities, especially excellent

soundproofing.

  It is also an object of the present invention to provide such

  coating having a pleasant appearance.

  It is also an object of the present invention to provide a

easy to maintain coating.

  It is also an object of the present invention to provide a

easy to install coating.

  It is also an object of the present invention to provide a

  coating whose cost per unit area is moderate.

  These objects are achieved according to the invention by a rigid coating comprising more flexible protruding contact strips for floating mounting on a support, for example on the ground. According to the invention, grooves are made, for example in plates. of wood, which is filled with flexible glue After taking the glue, a removal of the material between the grooves, preferably on the depth less than the depth of the

  groove, discovers the protruding contact strips.

  The subject of the invention is mainly a method of manufacturing a surface coating, in particular a self-coating comprising the steps of: a) performing in a board or slat made of wood of substantially constant thickness, first ablations forming first recesses; b) filling the first recesses with a flexible adhesive flush with the surface of the plate or slat; c) allow the glue to solidify, characterized in that it comprises a step of: d) performing a second ablation of wood on the face of the plate or slat comprising the deposit of flush glue by releasing

glue deposits.

  The invention also relates to a method, characterized in that the depth of the second ablation is constant over the entire surface of the board or the plate, this depth being between 0.5 and mm. The subject of the invention is also a method characterized in that

  the depth of the second ablation is between 1 and 3 mm.

  The subject of the invention is also a method, characterized in that in step a) or between steps a) or b), a third ablation is formed forming second recesses, preferably of a depth less than depth of the first ablation, in that in step b), in addition to the first recesses, the third recesses are filled with glue, and in that between steps b) and c), stacking boards or slats to form a block of wood that is cut into slices forming planks

or slats.

  The invention also relates to a method, characterized in that the third recesses are filled in step b) with an adhesive having mechanical properties different from those of the adhesive used for

fill in the first recesses.

  The invention also relates to a method, characterized in that the filling glue of the third recesses has in the solid state a rigidity greater than that of the glue used for the

  filling the first recesses.

  The subject of the invention is also a method characterized in that

  what the filling glue of the third recesses is a colored glue.

  The invention also relates to a method, characterized in that the recess or recesses is (are) filled (s) glue by injection or extrusion. The invention also relates to a method of laying a floor covering, characterized in that it comprises a step of placing the contact strips directly in contact with a floor covering obtained by the

  method according to the invention with a support.

  The subject of the invention is also a board or slat of substantially planar flooring of constant thickness, characterized in that it comprises, on one of its main faces, strips of a flexible material of constant thickness partially housed in grooves

  and whose projecting parts form contact strips with a support.

  The invention will be better understood by means of the description below.

  after and appended figures given as non-limiting examples, and in which: Figure 1 comprises views of the various steps of making a first embodiment of a coating according to the present invention; Figure 2 comprises views of the various steps of making a second embodiment of a coating according to the present invention; FIG. 3 shows views of the various manufacturing steps of a third embodiment of a coating according to FIG.

present invention.

  In FIGS. 1 to 3, the same references have been used for

designate the same elements.

  In Figure 1, we can see the various steps of making a coating according to the invention from a board or a wooden lath 1, as shown in Figure la La plate or lath 1 is grooved in U of constant section over the entire length of the board or batten 1, as illustrated

in Figure 1b.

  The grooves 2 are filled with flexible adhesive 3, for example with the aid of a flexible polyurethane adhesive. Various techniques can be used to fill the grooves with adhesive 2. For example, the adhesive

  is cast in the grooves 2 or is injected by injection or extrusion.

  After the solidification of the glue 3, a board or a wooden lath 1 of thickness E 1 comprising strips of flexible flush material is then obtained. The ablation is then carried out on a depth E 3 of the wood lying between the glue deposits 3, which then form protruding elastic contact strips 3 1 Advantageously, the thickness E 3 of the ablations is less than the thickness E 2 remaining of the board or the wooden slat 1 as well as the depth grooves 2 This depth E 3 depends on the maximum crushing of the resilient elastic contact strips that are to be tolerated E 3 is for example between 0.5 and 5 mm, between 0.5 and 10 mm or preferably , between 1 and 3 mm, depending in particular on crushing standards

  tolerated in countries where the coating is intended.

  In Figure 1 e, one can see a component of a coating according to the present invention placed on the ground The protruding contact strips 31 are crushed under the weight of the coating and the load, for example people and / or the furniture The wooden board 1 is not in contact with the support 4, which allows an excellent acoustic insulation The elements of the coating according to the present invention are assembled to form the complete coating of the surface, for example of the ground Advantageously each element has the standardized dimensions of the slats or floorboards However, the coating according to the invention, in addition to the fact that it provides excellent acoustic insulation, allows an easier implementation, preferably by direct laying, strips protruding contact 3 1 on the support 4 without the need for implementation of joists or other intermediate supports In addition, protruding resilient contact strips allow

  to compensate for an irregularity of the support 4.

  In Figure 2, we can see an alternative embodiment of flooring according to the present invention combining the decoration described in EP 0 309 356 and the flexible protruding strips of insulation

acoustic.

  FIG. 2a shows a board or slat 1 comprising a succession of first grooves 2 1 of a first depth P 1 interwoven with a succession of second grooves 2 2 of a second depth P 2, P 1 being greater than P 2 The grooves 2 1 and 2 2 are separated by ribs 5 of constant height. In the variant embodiment illustrated in FIG. 2, the face of the board or slat 1 opposite the grooves 2 bears opposite

  grooves 2 1 projections 6 of low height.

  The grooves 21 are filled with a flexible adhesive, for example a neoprene, polyurethane, epoxy-polyurethane glue, advantageously expanded, depending on the loads to be supported and / or the desired acoustic insulation, whereas the grooves 22 are filled by for example, with a colored hard adhesive, for example based on epoxy resin, as illustrated in FIG. 2b. It is possible to confer desired properties on the glue used to fill the grooves 2 2 For example, it is possible to use a conductive adhesive (loaded with metal particles or carbon) to evacuate electrostatic charges A coating made with conductive glues can be used in rooms with electronic equipment whose operation may be disturbed by static electricity as, for example, the computers The ribs 5 are covered with a small thickness of glue The grooves 2 2 may not

  be completely filled with glue to account for protrusions 6.

  It ensures the bonding of a superposition of boards or slats 1, as can be seen in Figure 2 c The projections 6 penetrate into the grooves 2 2 is cut the block formed by the superposition of the boards 1 FIG. 2c in slices along section planes C parallel to each other and perpendicular to the planes of the boards or laths, each section plane C passing through a rib 5 A saw is used, for example circular or ribbon whose thickness of the blade is sufficient to completely erase the rib 5 The thickness of the cutting line referenced E 4 is symbolized by the lines 7 in FIG. 2C. The section planes C pass through a rib 5 of two, to obtain boards or slats 11 of thickness E 5 of Figure 2 d having on a first face decorative elements formed by the hard colored glue 8 separated by wooden elements 9, and on the face

  opposite, strips of flexible adhesive 3 separated by wooden pieces 10.

  G By ablation of the wood in the elements 10, as illustrated in Figure 2 e, we discover protruding contact strips 3 1, which as shown in Figure 2 f, allow a floating mounting on

  a support 4 of the coating according to the present invention.

  It should be noted that the board or batten 1 of FIG. 2a is very close to or identical to the board illustrated in FIG. 9 of the aforementioned Patent EP 0 309 356. However, the section plane C in the case of the aforementioned patent goes through the middle of the grooves D1 and D2 and not by the ribs 5, as in the case of the present invention Furthermore, this patent does not describe a removal operation of a part of the wood of the elements 10, contrary to the

  present invention (see Figure 2 e).

  In Figure 3, one can see a floor covering according to the present invention constituting an improvement of the floor covering of Figures 5 and 6 of the aforementioned Patent EP 0 309 356 Each board 1 comprises a succession of grooves 2 1 and 2 2 separated by a rib 5 'of large width, the grooves 21 and 2 2 being separated by a narrow rib 5, as can be seen in Figure 2a The grooves 2 1 are filled with a flexible glue , while the grooves 2 2 are filled with

  a colored hard glue, for example based on epoxy resin.

  The boards or slats 1 are glued on each other, as can be seen in FIG. 3b. The cutting is carried out according to whether C is cut perpendicular to the plane of the boards or slats 1 and passing through the ribs 5 of narrow width are thus obtained boards or slats 11

of figure 3 c.

  Partial ablation of the wood of the elements 10 is carried out, as illustrated in FIG. 3 d. The contact strips 31 allow a floating mounting of the floor covering according to the present invention, as

illustrated in Figure 3 e.

  The floor covering of FIG. 3 is different from the floor covering of FIGS. 5 and 6 of the aforementioned patent EP 0 309 356, in that, on the one hand, a flexible adhesive is used, at least in the grooves 2 1 and, on the other hand, it is carried out (as can be seen in Figure 3 d) the removal of a portion of the wood

  elements 10 separating the flexible strips 3.

  It is understood that the present invention is not limited to the implementation of grooves for obtaining strips, but can also be applied to other shapes, such as for example studs, in particular cylindrical protruding, obtained in holes made in

planks or slats of wood.

  Similarly, the present invention is not limited to the implementation of wooden boards or plates, but extends on the contrary, for example, wood derivatives of the type of wood particle boards or panels

  of medium density fibers (MDF).

  The coating according to the present invention can be applied on the floors but also on the walls to obtain the desired acoustic characteristics. It can be provided on the exposed face with elements that absorb acoustic waves, for example foam deposits.

  open cells in grooves.

Claims (8)

  A method of manufacturing a surface coating, in particular a floor covering comprising the steps of: a) performing in a wooden board or slat (1) of substantially constant thickness, first ablations forming first recesses (2); , 2 1); b) filling the first recesses (2, 2 1) with a flexible adhesive flush with the surface of the plate or slat (1); c) allowing the adhesive to solidify, characterized in that it comprises a step consisting in: d) performing a second ablation of wood on the face of the plate or slat (1, 11) comprising the deposition of flush adhesive in clearing deposits of glue that may form contact (3 1).   2 Method according to claim 1, characterized in that the depth (E 3) of the second ablation is constant over the entire surface of the board or the plate (1, 11), this depth (E 3) being between 0 5 and 5 mm.   Process according to Claim 2, characterized in that the   depth (E 3) of the second ablation is between 1 and 3 mm.   Process according to any one of the claims   preceding, characterized in that in step a) or between steps a) or b), a third ablation is formed forming second recesses (2 2), preferably of depth less than the depth of the first ablation, in that in step b), in addition to the first recesses (2 1), the third recesses (2 2) are filled with glue, and in that between steps b) and c), the boards or laths (1) are stacked to form a block of   wood that is cut into slices forming planks or slats (11).   Process according to Claim 4, characterized in that the third recesses (2 2) are filled in step b) with an adhesive having mechanical properties different from those of the adhesive used for   fill in the first recesses (2 1).   Process according to Claim 5, characterized in that the filling glue of the third recesses has, in the solid state, a rigidity greater than that of the adhesive used for the filling of the first recesses (2 1).   Method according to claim 4, 5 or 6, characterized in that   that the filling glue of the third recesses (2 2) is a colored glue.   Process according to any one of the claims   preceding, characterized in that the or recesses (2 1, 2 2) is (are)   filled with glue by injection or extrusion.   9 Method for laying a floor covering, characterized in that it comprises a step of placing the contact strips (3 1) in direct contact with a floor covering obtained by the process according to any one of the   preceding claims with a support (4).   Plank or batten of substantially planar flooring of constant thickness, characterized in that it comprises, on one of its main faces, strips (3) of a flexible material of constant thickness partially housed in grooves ( 2) and having protruding parts (3 1)   form contact strips with a support (4).