FR3068056B1 - AERATOR DEVICE FOR MEANS FOR PROTECTING AN END OF A CARPENT ELEMENT - Google Patents

Abstract

The invention relates to an aerator device (D) for a protection means (300, 400) at one end of a frame member (100, 200), said protection means (300) being in the form of a a sleeve adopting the shape of a U, said device being remarkable in that it comprises at least one shim (500) adopting a U-shaped profile which, including a central bar and two vertical bars, is interposed between the protection means (300) and the end (100) to be protected so as to create and maintain a free space between the inner surface of the protection means (300) and the outer surface of the end (100) for the purpose of circulation of water and air. Applications: Protection of ends of structural members.

Description

AERATOR DEVICE FOR MEANS FOR PROTECTING AN END OF A CARGO ELEMENT

FIELD OF APPLICATION OF THE INVENTION

The present invention relates to the field of structural framing of buildings and especially to adaptations to ensure the protection of the ends of the frame in the best conditions.

DESCRIPTION OF THE PRIOR ART

The purlins and rafters are elements of the frame of a house whose ends are likely to be positioned projecting from the walls of the house. These projecting ends are conventionally positioned under a roof portion also projecting which protects them. Despite this protection, these ends are subject to the vagaries of the external environment (inclement weather, high temperature, etc.).

Conventionally, these ends are thus subject to regular maintenance to prevent their deterioration. This maintenance consists of the application of a protective coating.

In order to avoid this maintenance or to optimize it, there are protective devices for these ends of the frame which are in the form of a sheath lining positioned on the end and able to protect them. An example of such a device is described in GB2368354. This document describes a cover for a beam end that includes a main portion of one or more pieces including a base and two sides that form a U-shaped section, and an end portion. The main portion and the end portion may be integral or separate and the end portion may be formed at an angle to the base. Preferably, an inner surface of the main portion is ribbed and the main portion is provided with slots for drainage of water. These lids may further comprise an integrated panel serving as a board or roof or be preformed on their sides to receive a rim board or sub-roof.

The document FR2840634 also describes a protective device for structural element such as failure or chevron, overflowing a construction. This device is in the form of a sheath affecting a U-shaped profile delimited by a base and two longitudinal faces constituting the U-branches, this sheath being open at one end and closed at its other end to be able to engage on recovery or sliding on the exposed portion of said frame member. This device is remarkable in that the closed end of the sheath was delimited by means of a surface formed integrally with the base and the longitudinal sides of the sheath so as to form a monobloc unit preferably monolithic. Like the previous, this device comprises ribs preformed on the inner faces coming into contact with the end to be covered.

These ribs have the function of facilitating aeration and flow of water.

Indeed, the connection between the sheath and the end of the structural member to be protected is not tight and water, moisture could accumulate in the sheath if such ribs and drainage holes were not present.

A disadvantage of these ribs is that they increase the cost of the recovery device. Indeed, this device can be obtained by plastic molding and the presence of these ribs protruding perpendicularly to the inner face of the edges of the sleeve complicates the mold. Since the profiles and dimensions of the ends of the structural elements are varied, a complex mold is then necessary for each model.

Another disadvantage is that the projection height of said ribs and the free space then defined between the sides, do not always correspond to the width of the end. The pose is then more difficult because said projections do not ensure any retention of the sleeve on the end that covers. In addition, during the installation of the attachment points, the side is deformed to bear against the side wall of the end to be covered.

A known alternative is to fix additional rods on the inner face of the sides of the sleeves. Such a solution is likely to adapt to all dimensions and allow to consider sleeves without ribs and therefore simpler and economical to manufacture. Nevertheless, the duration of the operation of laying these rods and the hazards of their fixation (gluing or adhesive tape) relativize the interest of such a solution. In addition, such a solution requires the provision of rods of different thickness to accommodate the variability of the desired spacing or present between the surfaces.

BRIEF DESCRIPTION OF THE INVENTION

What is clear, the applicant has conducted research to propose a solution to solve the disadvantages of the protection devices purlin or chevron of the prior art.

This research has led to the design and implementation of a ventilator device of a means of protection of the end of a frame member performing the functions of ventilation, adapting to different dimensions and facilitating the installation.

The device of the invention ensures the ventilation of a means of protection of an end of a frame member, said protection means being in the form of a sheath fitting to fit on said end, said sheath adopting the shape of a U with a central portion and two longitudinal side faces constituting the branches of the U, the sleeve being open at one end and closed at its other end.

According to the invention, this aerator device is remarkable in that it comprises at least one wedge adopting a U-shaped profile which, including a central bar and two vertical bars, is interposed between the protection means and the end to be protected so as to create and maintain a free space between the inner surface of the protection means and the outer surface of the end for circulation of water and air.

This wedge is an independent element that is manufactured separately from the protection means. It is therefore no longer necessary to make the molding of said protective means more complex for the purpose of creating ribs on their inner surfaces.

In addition, by having a U-shaped geometry, the shim of the invention performs its function of maintaining the space required for the aeration and the flow of water on both sides at the same time which constitutes a solution more advantageous than sticking separate rods on each side. Thus, a single U-shaped wedge performs the function of two rods of the prior art.

According to another particularly advantageous characteristic, the device comprises a plurality of U-shaped shims arranged aligned along the frame member. These wedges make it possible to guarantee the desired spacing despite the length of the end to be protected. Indeed, insofar as the protective means are thin and elongated plastic elements, the surfaces may have a flexibility tending to make contact despite the presence of a wedge. The presence of a plurality of wedges avoids this disadvantage.

According to another particularly advantageous feature, said wedges are braced to form a unitary assembly. Thus, it is not necessary to install several pieces, a single assembly comprising a plurality of U-shaped shims must be positioned. The laying operation is then greatly facilitated. Of course, bracing does not impede the flow of water or air by providing for example, different thicknesses and / or different angles or rounding of connection.

According to another particularly advantageous feature of the invention, said U-block is in one piece.

According to another particularly advantageous feature of the invention, the U-shaped wedge is divided into two sliding parts at the central bar of said U to allow the distance or the approximation of the vertical bars of the U. This sliding possibility allows the fit to accommodate different widths of structural members. Only one shim can then be used for ventilation of a plurality of protection means model.

According to another particularly advantageous characteristic, the device is composed of two identical pieces formed of a plurality of half-spaced U-shaped profiles joining at the level of the central bar, which is present on each U-shaped half-profile alternatively in the form of a tube or rod capable of sliding in said tube, so that when arranged 180 degrees from one another, the two identical parts can implement a sliding connection between them in matching the tubular parts and the stems. The decomposition into two identical parts of said device greatly facilitates the manufacture of the device. Indeed, the device is, according to a preferred embodiment but not limited to, made by plastic injection. This plastic material is according to a preferred but non-limiting embodiment of polypropylene.

The molding and demolding of an L-shaped structure is easier than that of a U-shaped structure. Moreover, its transport requires less volume.

According to another particularly advantageous feature of the invention, the free ends of the vertical bars of the U receive a support head flaring in the support plane defined between the end to be protected and the protection means. These support heads may be preformed on said end or be manufactured separately and fixed later. This flare optimizes the support and the guarantee of the spacing. It further has the advantage of enlarging a surface that can decrease in accordance with the following feature.

Indeed, according to another particularly advantageous feature of the invention, the surface and the thickness of the support head are adjustable. This feature makes it possible to adapt the thickness of the bearing head to the existing or desired gap between the inner surfaces of the sheath formed by the protection means and the outer surface of the end of the frame member. The shim of the invention then becomes a shim with adjustable thickness.

To do this, according to another particularly advantageous feature of the invention, said support head is preformed with at least one groove forming a fold line allowing the support head to fold on itself and thus to duplicate its thickness. The implementation of the adjustment of the thickness by folding makes it possible to bind the elements providing the extra thickness to said base element which avoids the management of separate parts necessary for the extra thickness. Other features complete, associated or not, the proposed folding, namely that: - said bearing head is preformed with a plurality of grooves allowing as many folds, - the surfaces of the bearing head coming vis-à- screw after folding, are preformed male or female shapes cooperating with each other in folded position to maintain the folded parts in the folded position.

The basic concepts of the invention having been described above in their most elementary form, other details and characteristics will emerge more clearly on reading the description which follows and with reference to the appended drawings, giving non-limiting example, an embodiment of a device according to the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic drawing of an external perspective view of a dwelling comprising frame members whose ends are to be protected;

Figure 2 is a schematic drawing of a perspective view of an embodiment of a device according to the invention;

Fig. 3 is a schematic drawing of a perspective view of the device of Fig. 2 positioned in an embodiment of a failure guard;

Figure 4 is a schematic drawing of a perspective view of the tip guard equipped with the device of Figure 2 positioned on a tip of failure;

Figure 5 is a schematic drawing of a perspective view of the tip guard attached to the tip of the tip;

Figure 6 is a schematic drawing of a sectional view of the device positioned in the tip guard with the cutting plane passing through the U-block;

Figure 7 is a schematic drawing of an exploded perspective drawing in two subsets of the device of Figure 2;

Figure 8 is a schematic drawing of a perspective drawing of a subassembly constituting the device of Figure 2;

Figure 9 is a schematic drawing of a sectional view of the connection between the two subassemblies constituting the device of Figure 2;

Figure 10 is a schematic drawing of a perspective view of a bearing head equipping the device of Figure 2;

Fig. 11 is a schematic drawing of a perspective view illustrating possibilities of folding of the bearing head of Fig. 10;

Fig. 12 is a schematic drawing of a perspective view illustrating a first folded configuration of the bearing head of Fig. 10;

Fig. 13 is a schematic drawing of a perspective view of a second folded configuration of the bearing head of Fig. 10;

Fig. 14 is a schematic drawing of a perspective view of another foldable embodiment of a backing head;

Fig. 15 is a schematic drawing of a perspective view of another foldable embodiment of a backing head;

Figure 16 is a schematic drawing of a perspective view of another foldable and nestable embodiment of the head;

Figure 17 is a schematic drawing of a front view of another foldable embodiment of the head.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

The drawing of Figure 1 illustrates examples of situations where the device of the invention can be used.

As illustrated by this drawing, the dwelling H comprises a roof supported by a frame C comprising purlins 100 and rafters 200 whose ends are projecting from the walls of the dwelling H. These protruding ends are equipped with protection means respectively 300 and 400 nested on said ends of the purlins 100 and rafters 200 to protect them from the weather. The invention lies in the device D interposed between said ends of the purlins 100 and rafters 200 and said protection means 300 and 400 so as to create and maintain a free space between the inner surface of the protection means and the surface outer end for the purposes of water circulation and air.

As illustrated in the drawing of FIG. 2, the device D comprises an armature 500 composed of a plurality of U-shaped wedges (here four) 511, 512, 513, 514 including a central bar and two vertical bars. These shims 511, 512, 513, 514 are arranged aligned equidistant from one another by being interconnected by spacers 515 so as to form a U-shaped perforated profile.

The free ends of the vertical bars of the U are preformed with a bearing head 600 flaring in the bearing plane defined with the end of the tip 100 to be protected and the protection means 300 (or 400). that is to say along a longitudinal plane parallel to the vertical faces of the tip 100 and the vertical inner surfaces of the protection means 300.

As illustrated in the drawing of FIG. 3, where the protection means 300 has been drawn in a transparent manner, the device D is positioned in the protection means 300. As shown in more detail in the drawing of FIG. marry the inner planar surfaces of the U-shaped profile formed by the protective means 300.

As illustrated in the drawing of FIG. 4, the protection means 300 in which the device D is positioned fits into the end of the tip 100 by positioning the branches of the U on either side of the vertical faces of the device. the breakdown 100.

As illustrated in the drawing of FIG. 5, the assembly formed by the device D and the protection means 300 is fixed by nails 310 on said end of the tip 100. According to a preferred embodiment, the nails 310 pass through the support heads 600 during this fixing thus avoiding any deformation of the protection means 300.

As illustrated in the drawing of FIG. 7, the device D consists of two identical pieces 500a and 500b formed of a plurality of half-U-shaped profiles coming opposite one another and being joined at the level of their central bar. . As illustrated in the drawing of FIG. 8, this central bar is on each U-shaped half-section alternately in the form of a tube or a rod capable of sliding in said tube, so that once disposed 180 degrees from one another, the two identical parts 500a and 500b can implement a slide connection between them by matching the tubular parts and the rods. As explained above, this slide and the adjustment it allows, allow the device D to assume its function on frame ends of different widths. Thus, the shim: - 511 is formed by the two U-shaped half-profiles 511a and 511b, - 512 is formed by the two U-shaped half-profiles 512a and 512b, - 513 is formed by the two U-shaped half-profiles 513a and 513b, 514 is formed by the two U-shaped half-profiles 514a and 514b.

These half-U-shaped profiles are braced by spacers 515 to form two independent assemblies 500a and 500b which combine at the horizontal bars of the U to form a slide connection as shown in the drawings of FIGS. 6 and 9 which show the connection between the tubular horizontal bar of the U-shaped half-profile 511a with the circular section rod of the horizontal bar of the half-U-profile 511b. The thickness of the spacers is less (by a tenth according to a preferred embodiment but not limiting) to that of the vertical bars of the half-profiles to let air and water. The spacers and the vertical bars adopt according to the preferred embodiment but not limited to illustrated, a square section. This geometry avoids the presence of burrs during injection molding.

As shown in the drawing of FIG. 6, the vertical bars and the horizontal bar of the wedges are connected by a rounded shape which does not fully enclose the angle linking the inner planar surfaces of the protection means 300. This geometrical difference makes it possible to also leave a passage for the flow of air and / or water. Similarly, as shown in the drawing of FIG. 9, the circular profile of the rod of the horizontal bar of the half-U profile 511b comprises, in the lower part, a horizontal flat that provides a space for the passage of air and / or water under the U-shaped wedge once assembled half-profiles U.

The surface and the thickness of the bearing head 600 are made variable because of the preformations of which it is the object. The support heads 600 are interposed between the vertical surfaces of the inner faces of the protection means 300 and the outer vertical surfaces of the end of the frame member 100 to be protected.

As illustrated in the drawing of FIG. 10, the support head 600 thus proposes two planar, vertical and parallel bearing surfaces: the one 610 facing inwards bearing on the frame element, namely the failure 100, - the other 620 facing outward bearing against the inner face of the protection means 300.

These surfaces are advantageously preformed on one side of a box structure which offers good rigidity and good seating to the fastening nail which passes through the bearing head 600 during attachment. The spacing between these two bearing surfaces 610 and 620 can be adjusted. To implement it, said bearing head 600 adopts a particular shape and is preformed with a plurality of grooves 612 and 622 called folding which form as many areas of lesser thickness forming fold lines allowing the bearing head 600 to to fall back on itself and at least to split thus its thickness. The drawings of Figures 11, 12 and 13 illustrate the different possibilities of folds.

The drawing of Figure 11 illustrates a folding of the support head 600 according to the grooves 622 for doubling the thickness.

The drawings of FIGS. 12 and 13 illustrate a folding of the head 600 according to the grooves 612 and the grooves 622 making it possible to triple the thickness of the head.

As shown in the drawing of FIG. 12, the surfaces of the bearing head 600 facing each other after folding are preformed with male shapes 630 or female 640 cooperating with each other in the folded position to keep the folded parts in position. folded. The drawings of FIGS. 14 and 15 illustrate other embodiments of support heads 601 and 602.

The drawing of FIG. 16 illustrates an embodiment where the support head 603 is not manufactured at the same time as the U-shaped half-profiles and is fixed by retrofitting at the upper end of the vertical bar. half-profile in U.

These last three embodiments illustrate preformed support heads of vertical grooves facilitating the passage of air and water.

The drawing of Figure 17 shows that the support head can take any shape such that the head 604 which is circular with foldable portion or not.

It is understood that the device which has just been described above and shown, has been for the purpose of disclosure rather than limitation. Of course, various arrangements, modifications and improvements may be made to the example above, without departing from the scope of the invention.

Thus, for example, according to another embodiment illustrated by the drawing of Figure 2a, the device D 'is monobloc.

Claims (10)

An aerator device (D) of a protection means (300, 400) at one end of a frame member (100, 200), said protective means (300) being in the form of a sheath being fitted on said end (100), said sheath adopting the shape of a U with a central portion and two longitudinal lateral faces constituting the branches of the U, this sheath being open at one end and closed at its other end, CHARACTERIZED BY the fact that it comprises at least one wedge (500) adopting a U-shaped profile which, including a central bar and two vertical bars, is interposed between the protection means (300) and the end (100) to protect to create and maintain a free space between the inner surface of the protection means (300) and the outer surface of the end (100) for circulation of water and air. 2. Device (D) according to claim 1, CHARACTERIZED BY THE FACT THAT it comprises a plurality of U-shaped shims (511, 512, 513, 514) arranged aligned along the frame member (100). 3. Device (D) according to claim 2, CHARACTERIZED BY THE FACT THAT said wedges (511, 512, 513, 514) are braced to form a unitary assembly. 4. Device (D) according to claim 1, CHARACTERIZED BY THE FACT THAT the wedge (500) in U breaks down into two parts (500a and 500b) sliding at the central bar of said U to allow removal or approximation vertical bars of the U. 5. Device (D) according to claims 3 and 4, CHARACTERIZED BY THE FACT THAT it consists of two identical pieces formed of a plurality of half-profiles in U (500a and 500b) braced joining at the bar central, which is on each U-shaped half-profile alternately in the form of a tube or rod capable of sliding in said tube, so that when arranged 180 degrees one of the other, the two identical pieces (500a and 500b) can implement a slide connection between them by matching the tubular parts and the rods. 6. Device (D) according to claim 1, characterized in that the free ends of the vertical bars of the U receive a bearing head (600) flaring in the bearing plane defined between the end to be protected ( 100) and the protection means (300). 7. Device (D) according to claim 6, CHARACTERIZED BY THE FACT THAT the surface and the thickness of the support head (600) are adjustable. 8. Device (D) according to claim 6, CHARACTERIZED BY THE FACT THAT said bearing head (600) is preformed with at least one groove (612, 622) forming a fold line allowing the bearing head (600 ) to fall back on itself and thus to split its thickness. 9. Device (D) according to claim 8, CHARACTERIZED BY THE FACT THAT said bearing head (600) is preformed with a plurality of grooves (612, 622) allowing as many bends. 10. Device (D) according to claim 8, CHARACTERIZED BY THE FACT that the surfaces of the bearing head (600) coming face to face after folding are preformed male shapes (630) or female (640) cooperating between them in folded position to maintain the folded parts in the folded position.