FR2938868A1 - Covering flap for assembling round window inside circular receiving opening in wall of e.g. dwelling, has cylindrical wall for trimming internal face of opening in wall of dwelling, where axial length of flap increases from top to bottom - Google Patents

Abstract

The flap (1) has a cylindrical wall (2) for trimming an internal face of a circular receiving opening (8) provided in a wall (M) of a dwelling, where the flap is in a form of ring. An internal edge (20) of the flap is connected to a frame (F) of a round window, while an external edge is provided with an external peripheral transversal rim (3). Axial length of the flap increases from top to bottom, so that the external edge is applied against an edge zone of the opening in an upper part of the flap and is isolated from the edge zone in the low part of the flap.

Description

The present invention relates to a dressing flap for round window. It concerns more precisely the mounting of a round window, or bull's eye, inside a receiving opening of circular section arranged for this purpose in the wall of a building, for example in the wall of a house . Traditionally, the inner face of this opening is lined with a covering that hides all or part of the raw material of the masonry, concrete or blocks for example.

Such a covering is usually called bib in the building trade. The flap is a shell, or a half-ferrule (sometimes called half flap), cylindrical wall or slightly frustoconical, respectively semicylindrical or semi-frustoconical (low conicity), usually metal, such as aluminum or an alloy based on aluminum for example. In the case of a shell, it completely lining the inner wall of the opening. In the case of a half-shell, it covers the lower half only.

The window is installed on the inside of the opening, and its frame is adapted to fit on the inner edge of the wall of the flap. If the wall of the flap is frustoconical, it is mounted so that it flares outward (angle at the vertex therefore turned towards the interior of the building). The outer edge of the flap has a peripheral flange which fits in a transverse plane, perpendicular to the longitudinal axis of the shell or the half-shell, and which is adapted to bear against the outer coating of the wall, coating which can for example consist of a wooden cladding. This rim thus masks any irregularities in the edge of the opening, acting as a finishing element.

The function of the bib is essentially to collect the rain water that falls inside the opening, preventing it from seeping into the wall of the masonry; this water naturally flows outwards, a small channel is usually dug at the lowest point of the outer edge area of the flap to facilitate and channel this flow. Such flap has the disadvantage that as soon as its peripheral rim is applied against the outer wall of the wall, water that escapes from the bib by its lowest point flows downward by dripping on this rim , then against the coating. There are therefore traces of vertical flows from the lowest point of the opening on the coating, which are aesthetically detrimental and, in the long run, possible causes of infiltration.

To overcome this difficulty, it is known to slightly oversize the axial length of the flap relative to the length of the opening, so that its flange does not apply against the outer face of the wall, but that it either slightly off, for example two to three centimeters. Thus, the water that escapes from the flap at its lowest point flows in the manner of a natural waterfall, at a distance from the wall covering. But this assembly in overflow is not completely satisfactory. Indeed, the edge of the opening is not completely hidden by the edge of the flap, and therefore remains visible from the side.

In addition, when dealing with a complete shell, the rain can fall on the upper part of the flap, between the flange taken off of it and the wall covering. This water can then run off on the outer face of the flap and then infiltrate part of the raw wall of the opening and / or flow through the low point of this outer face along the coating, below said flange.

The invention aims to solve these difficulties. The invention relates to a covering (or flap) for round window, able to be inserted inside a receiving opening of circular section formed in the wall of a building, for example in the wall of a house, which affects the shape, either of a cylindrical wall or slightly frustoconical shell adapted to completely fill the inner face of the opening, or a semi-cylindrical semi-cylindrical wall or semi-frustoconical wall with small conicity, adapted for to fill the lower half only, one of the edges of this dressing, said internal being intended to be connected to the frame of the window, the inner side of the building, while its other edge, said external, is provided with a transverse edge external device intended to surround the edge zone of the opening, on the outside of the building.

The transversal adjective indicates that the flange is folded outward substantially substantially at right angles to the longitudinal axis of the flap. According to the invention, the axial length of the covering is variable, this length increasing from top to bottom, so that in the upper part of the shell or the half-shell, said peripheral flange can be applied against the edge region of the opening, while in the lower part of the ferrule or the half-ferrule, said peripheral flange is spaced from this edge zone. Thanks to this arrangement, an interesting compromise is achieved between, on the one hand, the desire to bring the upper zone of the flap in contact with the outer face of the wall (for aesthetic purposes and / or not to expose to the rain the upper area of the outer face of the flap) and, secondly, the desire to obtain an escape without run-off, in waterfall, the rainwater collected in the dressing, when it s escapes at the bottom of it. On the other hand, according to a number of possible and advantageous additional features of the invention: the axial length of the wall of this covering, which corresponds to the distance separating its internal and external edges, increases from top to bottom progressive from the zone corresponding to the horizontal diametral plane of the ferrule or the half-ferrule to the low zone; This growth, from top to bottom, of the axial length is linear, or substantially linear; the value of the outward overhang of the rim of the lower zone of the ferrule or of the half-ferrule is between 0.5 and 5 cm, and is preferably of the order of 2 cm 3 cm; The wall of the ferrule or of the half-ferrule is provided, on its external face, with a second transverse, annular or semiannular edge respectively disposed on the inner side, at a short distance from said peripheral transverse flange, this second flange; étantsolidaire of the wall, or free relative thereto-extending in a plane perpendicular to the longitudinal axis of the ferrule or the half-ferrule and being adapted to apply sealingly against an element - the rain of which is provided the wall of the building; the covering having the shape of a shell with a cylindrical or slightly frustoconical wall adapted to completely fill the inner face of the opening, the axial length of its wall, which corresponds to the distance separating its inner and outer edges, is constant from its high zone to the zone corresponding to its horizontal diametral plane.

Other characteristics and advantages of the invention will appear on reading the following description of a preferred embodiment of the invention. This description is made with reference to the accompanying drawings, in which: FIGS. 1 and 2 are front and side views respectively of a first possible embodiment of a covering according to the invention, this covering consisting of a flange in the form of a ferrule with a cylindrical wall; - Figures 3 and 4 are respectively front and side views of a second possible embodiment of a trim according to the invention, the cladding consisting of a frustoconical flange frustoconical wall; - Figures 5 and 6 are views similar to Figures 2 and 4 respectively, which represent variants of the dressing, the ferrule is provided with a second flange; - Figures 7 and 8 are respectively front and side views of a third possible embodiment of a covering according to the invention, the cladding consisting of a flange-shaped half-shell with cylindrical wall; - Figures 9 and 10 are respectively front and side views of a fourth possible embodiment of a covering according to the invention, the cladding consisting of a frustoconical shaped half-shell flap; - Figure 11 is a diagram which shows, cut by a median vertical plane, a covering according to the invention installed inside the opening of a building wall. Referring to Figures 1 and 2, the flap 1 is a cylindrical wall shell 2, of axis X-X ', one of whose edges is bare while its other edge is lined with a peripheral annular flange 3 folded outward, at right angles to X-X '. This shell is made of thin sheet metal, for example aluminum sheet or bent and welded steel, thickness between 1 and 3 mm.

Its dimensions are based on those of the window and the building wall to be equipped. As a purely indicative, its diameter is for example between 40 and 120 cm while its axial dimension (along X-X ') is between 20 and 50 cm.

The width (radial dimension) of the flange 3 is for example of the order of 30 mm.

As can be seen in FIG. 11, the flange 3 may form an integral part of a circular ring 9 of L-shaped section, one of whose branches has a circular slot 90 in which the edge 21 of the wall 2 is axially engaged. is opposed to the inner edge 20. The attachment of the ring on this edge 21 can be made for example by screwing or welding. In Figure 1, the reference H designates a median plane which passes through the axis X-X 'and which is intended to be oriented horizontally when the flap is correctly inserted in an opening of horizontal axis. According to the invention, the upper half of the flange 3, that is to say its semicircular portion located above the plane H, is in a vertical plane P (perpendicular to X-X '). On the other hand, its lower half P 'lies substantially in a plane P' which forms an acute angle, a few degrees, with respect to the plane P. It is inclined so that the lowest point 10 of the flap is located axially offset outwardly with respect to the plane P. The value of this edge d is for example of the order of 30 mm. At this level a small channel (not shown) known per se is advantageously provided to facilitate the evacuation of water. Figures 3 and 4 show a flap analogous to that 1 of Figures 1 and 2.

The identical or similar elements of those of the flap 1 have been designated by the same reference signs, possibly affected by the index a. The bib is differentiated from the previous only by the fact that the wall 2a of the ferrule is frustoconical, low conicity, flaring outwards. One finds there the offset in overflowing of its low point 10a. The flaps illustrated in FIGS. 5 and 6 are variants that are different from the previous ones only in that their wall 2, respectively 2a, is provided with a second peripheral flange 4, respectively 4a, for example welded. This second flange could be free, mounted sliding axially around the wall of the flap, its positioning can be adapted to that of the rain screen, which it can also be fixed, for example by gluing, before mounting of the bib proper.

It is positioned at a short distance from the first flange 3, respectively 3a, and is entirely in a transverse plane parallel to the plane P (perpendicular to X-X '). Its function will be explained later, with reference to FIG.

With reference to FIGS. 7 and 8, the flap 5 is a half-shell with a semi-cylindrical wall 6 of axis XX 'one of whose edges is bare while its other edge is lined with a peripheral annular flange 7 folded outward, at right angles to X-X '. This one fits in a plane P 'slightly inclined with respect to a transverse plane so that one finds there the overflow d of its low point. In fact, this flap 5 is identical to the lower half (located below the plane H) of the flap 1 of Figures 1 and 2. With reference to Figures 9 and 10, the flap 5a is a half-ferrule with frustoconical wall 6a of axis XX 'one of which 60a edges is bare while its other edge is lined with a peripheral annular rim 7a folded at right angles outward at right angles to X-X'. This one fits in a plane P 'slightly inclined with respect to a transverse plane so that one finds there the overflow d of its low point. In fact, this flap 5a is identical to the lower half (located below the H plane) of the bib of Figures 3 and 4. In Figure 11 is shown in section a circular opening 8 through the wall of a building such as a vertical dwelling wall M; it is furnished with a flap 1 according to the invention and equipped with a round window F. The interior space of the house is located on the left of the figure. The opening 8, of horizontal axis, is pierced through the masonry, for example concrete, of the wall. The window F is a bull's eye, which can be fixed or tilting, the frame of the frame is housed and fixed in the opening 8, the inner side, in a conventional manner. This window has an annular rim bearing against the inner face of the wall, for example against an inner lining plate C. The outer face of the wall M is covered with a cladding B, for example of wood, which is fixed to the wall also in known manner, with the interposition of a rain-proof element E which consists for example of a waterproof film 35 to water.

The casing shown corresponds to that illustrated in FIG. 5 (cylindrical shell 1 with additional flange 4). The outer diameter of the shell 1 is slightly less than that of the opening 8. It corresponds to that of the circular slot in the frame 5 of the window and intended for the insertion of the inner edge 20 of the flap. The axial dimension of the shell is such that after mounting the flange 4 bears against the rain cover E while the upper half of the flange 3 (above the plane H) is applied against the cladding B. With the inclination of the plane P 'mentioned above, the flange 3 progressively deviates from the cladding B, from the top to the bottom from the plane H, until it reaches the value d at lowest point. Because the upper half of the rim 3 is pressed against the cladding, the edge area of the opening which is made there, the outline is not necessarily regular, is perfectly hidden by this rim.

This plating also prevents the raindrops from reaching the outer face of the wall 2 of the ferrule. The presence of the second flange 4 which cooperates with the rain cover E perfect the sealing of the assembly. However, due to the overflow d of the lower zone, the water collected inside the shell can flow outward with a waterfall effect, without dripping on the underlying siding. In Figure 11, the reference Lo designates the axial dimension of the shell, the value is constant over the upper half of the flap. This axial dimension L increases linearly from top to bottom on the lower half of the flap, until it reaches at the low point a maximum value equal to Lo + d. With flaps in the form of half-rings, the assembly is similar, but with a filling of the lower half only of the opening 8. They are less expensive than whole ferrules, but less aesthetically efficient. The conical shape facilitates the flow of water outwards, both for ferrules and for half-ferrules. Without departing from the scope of the invention, the flap could have a cylindrical (or semi-cylindrical) portion connected to a conical (or semi-conical) portion, particularly at its mouth.

Claims (6)

REVENDICATIONS1. Cladding for round window, able to be inserted inside a receiving opening of circular section (8) formed in the wall of a building, for example in the wall (M) of a dwelling, this cladding (1 , la; 5, 5a) affects the shape, either of a cylindrical shell (2) cylindrical or (2a) slightly frustoconical adapted to completely fill the inner face of the opening (8), or a half-ferrule with a semi-cylindrical or semi-frustoconical wall (6a) of small conicity, adapted to fill the lower half only, one (20, 20a; 60, 60a) of the edges of this interior covering, being intended to be connected to the frame of the window (F), on the interior side of the building, while its opposite edge, said external, is provided with an outer peripheral transverse edge (3, 3a, 7, 7a) intended to surround the edge area of the opening (8), on the outside of the building, characterized by the fact that the axial length of the mantle ge is variable this length increasing from top to bottom, so that in the upper part of the shell or the half-shell, said peripheral flange can be applied against the edge zone of the opening, while in lower part of the ferrule or the half-ferrule, said peripheral flange is spaced from this edge zone. 2. Round window covering according to claim 1, characterized in that the axial length (1) of its wall (2, 2a; 6, 6a), which corresponds to the distance separating its inner and outer edges, increases from the top towards the bottom gradually from the zone corresponding to the horizontal diametral plane (H) of the ferrule or the half-ferrule to the low zone. 3. Round window covering according to claim 2, characterized in that the growth, from top to bottom, of said axial length (1) is linear, or substantially linear. 4. Cladding for round window according to any one of claims 1 to 3, characterized in that the value (d) of the outward overhang of the rim of the lower zone of the shell or the half-shell is included between 0.5 and 5 cm, preferably of the order of 2 cm to 3 cm. 5. Round window covering according to any one of the preceding claims, characterized in that the wall (2, 2a) of the shell (1, la) or (6; 6a) of the half-shell (5, 5a ) is provided on its outer face with a second transverse (4, 4a), annular or, respectively, semi-annular flange, disposed on the inside, at a short distance from said peripheral transverse flange (3, 3a, 7, 7a) this second flange extending in a plane perpendicular to the longitudinal axis (X-X ') of the ferrule or the half-ferrule and being adapted to apply sealingly against a rain-proof element (E) which is provided with the wall of the building, the second rim being integral with the wall (2, 2a) or free. 6. Round window covering according to any one of the preceding claims, which has the shape of a shell with a cylindrical or slightly frustoconical wall (2, 2a) adapted to completely fill the inner face of the opening (8), characterized in that the axial length of its wall, which corresponds to the distance (Lo) separating its internal and external edges, is constant from its high zone to the zone corresponding to its horizontal diametral plane (H).