FR2990454A1

FR2990454A1 - Device for preparing walls and ceilings of plasterboard, has recessed areas and oblique section glued or screwed on side face of plasterboard, where recessed areas is provided with injection hole to introduce mortar sticks

Info

Publication number: FR2990454A1
Application number: FR1201364A
Authority: FR
Inventors: Luca Joel De
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-05-11
Filing date: 2012-05-11
Publication date: 2013-11-15
Anticipated expiration: 2032-05-11
Also published as: FR2990454B1

Abstract

The device has recessed area (1) and an oblique section (2) glued or screwed on a side face of a plasterboard, where the recessed area is provided with an injection hole to introduce mortar sticks. The oblique section allows optimal filling of a cavity formed on the recessed area. A screwing zone is provided in the recessed area to ensure positioning of the mortar sticks into the injection hole.

Description

La présente invention concerne un profil de plaque de plâtre permettant l'assemblage de cloisons et plafonds sans utilisation de bande de liaison. Traditionnellement, les plaques de plâtre destinées au parement des cloisons et plafonds intérieurs sont collées sur le support ou vissées sur une ossature métallique. Leurs bords longs sont traités différemment selon l'usage envisagé, sous les appellations BA (bords amincis, joints avec bande noyée dans l'enduit), SB, BC ou BD (joints bourrés, sans bande). Le type BA est le plus utilisé, ses bords amincis et l'usage de bandes supprimant le risque de fissuration entre plaques. Corollaire du traitement des joints à bande noyée, 10 le temps de mise en oeuvre est conséquent (enduit, pose de la bande, enduit de nouveau, ponçage, retouches, surfaçage minutieux) et rarement récompensé par un fini correct. Le profil de ces plaques peut être modifié pour l'obtention d'une planéité parfaite dans un temps d'exécution nettement diminué. 15 La plaque de plâtre proposée ne comporte pas d'amincissement sur sa face de finition, la pose se faisant bord à bord par vissage sur ossature métallique ou par collage sur support. Les bords longs de la face à coller (sans finition) comportent des zones évidées pourvues de trous d'injection du mortier colle, se superposant aux rails de fixation, séparées par les zones de vissage. Le mortier colle solidarise les deux plaques 20 et supprime les risques de fissuration. Le profil oblique du champ de chaque bord long permet un remplissage optimum du mortier colle afin d'affleurer le parement et réduire les opérations de ponçage au strict minimum sans risque de défaut de planéité de l'ensemble de l'appareillage. Selon les modes particuliers de réalisation : 25 - Les profils revendiqués peuvent s'appliquer aux quatre bords de la plaque Les dessins 4nnexés illustrent l'invention. La figure 1 représente le bord long en coupe, La figure 2 représente le bord long en plan, coté face à coller ou à visser, La figure 3 représente le mode d'assemblage en coupe de deux plaques sur un rail de fixation, La figure 4 représente le mode d'assemblage par collage sur support. The present invention relates to a gypsum board profile for the assembly of partitions and ceilings without the use of a connecting strip. Traditionally, gypsum boards for the cladding of interior partitions and ceilings are glued to the support or screwed to a metal frame. Their long edges are treated differently depending on the intended use, under the names BA (thinned edges, joints with strip embedded in the coating), SB, BC or BD (stuffed joints, without tape). BA type is the most used, its thin edges and the use of strips eliminating the risk of cracking between plates. As a corollary to the treatment of embedded strip joints, the processing time is substantial (coating, laying the strip, re-coating, sanding, retouching, careful surfacing) and rarely rewarded with a proper finish. The profile of these plates can be modified to obtain a perfect flatness in a significantly reduced execution time. The proposed plasterboard has no thinning on its finishing face, the laying being edge to edge by screwing on metal frame or by gluing on support. The long edges of the face to be bonded (without finishing) comprise recessed areas provided with injection holes of the adhesive mortar, superimposed on the fastening rails, separated by the screwing zones. The adhesive mortar secures the two plates 20 and eliminates the risk of cracking. The oblique profile of the field of each long edge allows an optimum filling of the adhesive mortar in order to be flush with the facing and to reduce the sanding operations to the strict minimum without the risk of unevenness of the entire apparatus. According to particular embodiments: The claimed profiles can be applied to the four edges of the plate. The attached drawings illustrate the invention. FIG. 1 represents the long edge in section, FIG. 2 represents the long edge in plane, facing side to be glued or screwed, FIG. 3 represents the mode of assembly in section of two plates on a fixing rail, FIG. 4 represents the method of assembly by bonding on a support.

En référence à ces dessins, le bord de la face à coller ou visser (5) comporte des zones évidées (1) et un profil oblique (2). Ces zones évidées sont pourvues d'un trou d'injection (3) destiné à introduire le mortier colle assurant la solidité et la rigidité de l'appareillage. Entre chaque zone évidée se positionne une zone de vissage (4) afin d'assurer le positionnement de chaque plaque préalablement à l'injection du mortier colle. La pression de l'injection remplit l'espace réservé par les zones évidées, et vient affleurer la face de parement (6) grâce au profil oblique. Le dispositif présenté est particulièrement destiné à l'élaboration de cloisons et plafonds sans utilisation de bande de liaison entre plaques de plâtre. With reference to these drawings, the edge of the face to be bonded or screwed (5) comprises recessed areas (1) and an oblique profile (2). These recessed areas are provided with an injection hole (3) for introducing the adhesive mortar ensuring the strength and rigidity of the equipment. Between each recessed area is positioned a screwing zone (4) to ensure the positioning of each plate prior to the injection of the adhesive mortar. The pressure of the injection fills the space reserved by the recessed areas, and comes flush with the facing face (6) thanks to the oblique profile. The device presented is particularly intended for the production of partitions and ceilings without the use of a bonding strip between plasterboards.

Claims

CLAIMS1) Device for the production of partitions and ceilings gypsum board characterized in that it has on the edge of its face to glue or screw recessed areas (1) and an oblique profile (2), the recessed areas being provided with an injection hole 5 (3) for introducing the adhesive mortar.

2) Device according to claim 1 characterized in that the edge of the plasterboard has recessed areas (1) on its face to be glued or screwed.

3) Device according to claim 2 characterized in that the edge of the edge of the plate has an oblique profile (2) for an optimal filling of the cavity 10 formed by the recessed area.

4) Device according to claim 3 characterized in that the recessed area comprises an injection hole (3) for the filling of adhesive mortar.