FR2492433A1 - Connector for constructional beams - comprises composite plate containing holes for assembly bolts - Google Patents

Abstract

The connector for modular constructional elements (7a,7b) which are U-shaped in cross-section, comprises at least one plate (1) which is positioned between the central parts (8a,8b) of the elements to be connected. The plate has a composite structure and incorporates a steel reinforcement (3) and holes which are spaced to coincide with holes provided in the central part of each element allowing the passage of assembly bolts (9). Each face of the steel reinforcement is covered with an anti-rust coating and carries a protective external film.

Description

 The present invention relates to a connection device for modular building elements comprising metal profiles in U-section and assembled on site by bolts engaging in orifices formed in the webs facing the profiles to be assembled, and immobilized by nuts.

 It has thus already been proposed, in particular for the realization of individual houses having good quality of thermal and sound insulation, easy to assemble, to use in particular to form the framework of the house of such U-shaped profiles assembled using gussets so as to form boxes of rectangular section whose profiles forming the long sides are joined by spacers parallel to the short sides.

 The framework panels, as well as the profiles, also of U-shaped section assembled or not in boxes and intended to make the components of ceilings, floors and walls are assembled by bolts passing through the assembly orifices provided in the souls of the profiles.

 It has already been proposed to assemble such profiles by placing them directly side by side, the bolts then simply passing through the webs of two profiles arranged one next to the other. Such a connection of profiles making a metal-to-metal contact causes vibrations, which excludes good sound insulation. It is further necessary in this case to provide additional thermal insulation.

 It has also been proposed to interpose, between the cores, profiles to assemble compressed wooden joints. Experience has shown that these seals deteriorate rapidly, to the detriment of the solidity of the assembly and of the sound and thermal insulation properties.

 The present invention is intended to remedy these drawbacks and proposes to provide a connection between modular building elements comprising metal profiles in the shape of a U, which is of a simple and economical design, allows easy mounting and ensures for the construction extremely efficient insulation, both sound and thermal.

 The device according to the invention is essentially characterized by the fact that it comprises at least one plate capable of being arranged between the cores facing the profiles to be assembled, said plate having a composite structure including at least one metal frame, and being provided with through holes for the passage of assembly bolts, the spacing between said orifices corresponding to the spacing between the orifices formed in the webs of the profiles to be assembled.

 In a particular embodiment, the plate comprises a central sheet of steel reinforcement, with a thickness of between approximately 1.5 mm and approximately 3 mm, preferably coated on each of its faces with a layer of anti-rust primer and on which flanges are adhered in a water-repellent material, for example formed of hard fibers.

 The external faces of the flanges are preferably coated with an external protective film, in particular of polyester resin.

 Such plates provide the connection between the profiles with great mechanical solidity thanks in particular to the metal frame while offering, thanks to the composite structure, excellent sound and thermal insulation properties.

 Thanks to the fact that it is possible to standardize the spacing between the orifices with which the profiles and therefore the connection plates must be provided, and since the construction requires only a limited number of different modular elements, can ensure all connections with a reduced number of plates of different dimensions.

 The present invention also relates to an assembly of U-shaped section profiles whose cores are arranged opposite and between which is arranged at least one connecting plate as defined above, and in which assembly bolts pass through the corresponding orifices of the profiles and connection plates and being immobilized by nuts.

 Advantageously, the assembled profiles are each part of a box of rectangular section obtained by the union of four profiles of U-shaped section using gussets and comprising spacers connecting its long sides.

 In a particularly advantageous embodiment of the assembly according to the invention, there are between the cores facing the profiles, in addition to the connecting plate or plates, insulating elements in the form of a plate, likewise thickness than the connection plates, and intended to increase the sound and thermal insulation properties, these insulation elements being for example cut from a panel of insulating material such as a panel made of resinous wood fibers impregnated with asphalt .

Other advantages and characteristics of the invention will appear on reading the following description given by way of nonlimiting example by referring to the appended drawing in which
Figures 1 and 3 are side elevational views of two exemplary embodiments of connecting plates according to the invention.

 Figures 2 and 4 are top views of the plates shown in Figures 1 and 3 respectively.

 Figure 5 is a side elevational view of a plate insulation element usable in an assembly according to the invention.

 FIG. 6 is a top view of the element shown in FIG. 5.

 FIG. 7 illustrates the arrangement of a connection plate according to the invention on a metal U-shaped profile.

 Figure 8 is an end view of an assembly according to the invention.

 FIG. 9 represents a framework box with which the connection device according to the invention can be used.

 FIG. 10 represents another embodiment of assembly according to the invention.

 FIG. 11 is a side elevation view of the assembly shown in FIG. 10.

 Figure 12 is a top view of this assembly.

 FIG. 13 illustrates a third embodiment of assembly according to the invention.

 FIG. 14 is a front elevation view of the assembly of FIG. 13.

 Figure 15 is a side view.

 FIGS. 1 to 4 show two exemplary embodiments of connecting plates according to the invention, these plates being generally designated by the number 1.

 The plate shown in Figures 3 and 4 has the same structure as the plate shown in Figures 1 and 2, but differs in size, number and arrangement of the orifices 2 it comprises.

 These orifices are four in number in the embodiment of FIGS. 1 and 2 and eight in number in the embodiment of FIGS. 3 and 4.

 In both embodiments, the plate has a rectangular shape and is constituted by a multilayer stack comprising a steel reinforcing sheet 3 on either side of which flanges 4 are adhered in a water-repellent material such as hard fibers. . The steel sheet 3 is covered on each of its two faces with a layer of anti-rust primer paint which thus separates the sheet 3 from the flanges 4.

 These flanges 4 are coated on the outside with a protective film of polyester resin.

 In a particular embodiment, the reinforcement sheet 3 has a thickness of 3 mm, the plate having a total thickness of 10 mm.

 In the embodiment of Figures 1 and 2 the plate has a length of 80mm and a width of 80mm and in the embodiment of Figures 3 and 4 a length of 120mm and a width of 80mm.

 There is shown in Figures 5 and 6 an insulation element, cut to the same size as the plate of Figures 1 and 2 and used in an assembly according to the invention as will be described later.

 This insulating element 5 is obtained by cutting from a panel of resinous wood fibers impregnated with 11% asphalt.

 The orifices 2 housed in the connection plates of FIGS. 1 to 4 and the orifices 6 formed in the insulation element of FIGS. 5 and 6 allow the passage of assembly bolts making it possible to produce, after immobilization of the bolts by nuts , the connection according to the invention between metal profiles with the interposition of the connection plates and, where appropriate, insulation elements.

 The connecting plates 1 have relatively small dimensions compared to the profiles between which they must be arranged.

 Thus, FIG. 7 shows the arrangement of a plate 1 similar to those of FIGS. 1 and 2 on a metal profile 7 of U-shaped section. In this case the plate has the same width as the core 8 of the profile but its length is very small compared to that of profile 7 which can reach several meters.

 Profile 7 can be an insulated profile or, preferably, constitutes one of the profiles of a box which will be described later with reference to FIG. 9.

 FIG. 8 illustrates the assembly of two sections 7a and 7b, the cores 8a and 8b of which are arranged facing each other. Between these cores is interposed a connecting plate 1, the assembly being realistic by bolts 9 passing through the orifices 2 of the plate and corresponding orifices formed in the cores of the profiles, the bolts being immobilized by nuts.

 The plate or plates placed between the webs of the profiles provide, thanks to their metal frame 3, good mechanical strength of the assembly link and offer excellent protection against vibrations due to the space which they allow to create between the two. assembled profiles, this space eliminating both phonic and thermal bridges.

 FIG. 9 shows a frame box usable in the context of the present invention.

 This box has a rectangular shape and consists of two long sections of U-shaped section 10 and 11 joined to two shorter sections 12 and 13 also in the form of U, the meeting being carried out using gussets 14. Spacers 15 parallel to the short sides 12 and 13 ensure the mechanical rigidity of the assembly.

 The souls of profiles 10, 11 ,. 12 and 13 include numerous holes 16, at standardized locations, for the passage of bolts for assembling two boxes together or from a box to another modular construction element comprising a U-shaped profile.

 The assembly is carried out as illustrated in FIG. 8 with the interposition of one or more connecting plates.

 FIGS. 10 to 12 show an assembly according to the invention using a connection plate similar to that of FIGS. 3 and 4.

 Such a connecting element is used for the assembly of six metal U-shaped sections 7a, 7b, 7c, 7d, 7e, 7f each forming part of a box similar to that shown in FIG. 9.

 The sections 7a and 7b thus form part of frame boxes constituting for example the floor, the sections 7c and 7d of filling boxes forming the inside of a wall and the sections 7e and 7f of frame boxes forming the structure. supporting a wall.

 As illustrated in particular in FIGS. 11 and 12, by using simple bolts 9, six boxes of different types are assembled while creating, thanks to the connecting plate 1, a space between the cores of the profiles of the boxes avoiding any bridges. phonic or thermal.

 Finally, FIGS. 13 to 15 show an assembly of two U-shaped section profiles 7a and 7b, each capable of being part of a box as illustrated in FIG. 9, using a connection plate 1 whose width is less than the width of the webs 8a and 8b of the profiles to be assembled, this width in the example shown being half.

 The connection of the profiles to each other is ensured by bolts 9 immobilized by nuts as seen in FIGS. 14 and 15.

 Between the cores of the facing profiles, an insulation element in the form of an elongated plate 5 is also provided, provided with holes 6 for the passage of assembly bolts 9.

The insulating element has a length significantly greater than the length of the connecting plate and can extend for example over the entire length of the profiles 9 to be assembled.

 The thickness of the insulation element is the same as that of the connection plate.

 Although the invention has been described in connection with particular embodiments, it is obvious that it is in no way limited thereto and that it is provided with numerous variants and modifications without however departing from its scope or of his mind.

Claims (8)

 1. Connecting device for modular building elements comprising metal profiles of U-section and assembled by bolts engaging in orifices made in the cores facing the profiles to be assembled, and immobilized by nuts, characterized by the fact that it comprises at least one plate (1) capable of being disposed between the cores (8) opposite the profiles (7) to be assembled, said plate having a composite structure including at least one metal frame (3) and being provided through orifices for the passage of assembly bolts (9), the spacing between said orifices corresponding to the spacing between the orifices formed in the webs of the profiles to be assembled.  2. Connecting device according to claim 1, characterized in that the or each of said plates comprises a central sheet of steel frame, preferably coated on each of its faces with a layer of anti-rust primer and on which are bonded flanges in a water-repellent material, the external faces of said flanges being preferably coated with an external protective film.  3. Connecting device according to claim 2, characterized in that said water-repellent material is formed of hard fibers.  4. Connection device according to any one of claims 2 and 3, characterized in that said external protective film is formed of polyester resin.  5. Assembly of U-shaped section profiles whose cores are arranged opposite, characterized in that it comprises between said cores a connecting device according to any one of the preceding claims.  6. Assembly according to claim 5, characterized in that the profiles to be assembled are each part of a box of rectangular section obtained by the meeting of four profiles (10, 11, 12, 13) of U-section using gussets (14) and comprising spacers (15) connecting its long sides (10, 11) -.  7. An assembly according to any one of claims 5 and 6, characterized in that it comprises between said cores facing profiles, in addition to the connecting plate or plates, plate-shaped insulating elements ( 5) of the same thickness as the connecting plates.  8. An assembly according to claim 7, characterized in that the insulating elements are cut from a panel of insulating material, such as a panel made of resinous wood fibers, impregnated with asphalt.