Window sill including an improved rear rejingot and method of mounting a window

Abstract

A window sill (1) comprising a rear edge (1A) configured to be positioned on the side of an interior space and a front edge configured to be positioned on the side of an exterior space, a drainage surface (10) which is inclined to allow the flow of rainwater towards the front edge (1B), a rear rejingot (2) extending at the rear edge (1A) which is raised relative to the drainage surface (10), the rear rejingot (2) comprising at least one support portion (21) configured to support a window and at least one sealing portion (22) configured to receive a sealing member, the support portion (21) being positioned behind the sealing portion (22) and raised relative to the sealing portion (22) so as to support the window without compressing the sealing member when mounting the window. Abstract Figure: Figure 6

Description

Title of the invention: Window sill comprising an improved rear rejingot and method of mounting a window Technical field

[0001] The present invention relates to the field of construction and more particularly to the field of window sills used for installing a window in an opening formed in a wall of a building.

[0002] When constructing a building, it is common to form openings in the walls of the building to fix frames, i.e., a door or a window. Conventionally, to mount a window in an opening, it is known to first mount a window sill at the lower horizontal edge of the opening.

[0003] As illustrated in [Fig.l], a window sill 100 is traditionally in the form of a concrete part of generally parallelepiped shape. In [Fig.l], the window sill 100 is defined in an orthogonal coordinate system (X, Y, Z) in which the X axis extends longitudinally from right to left (the orientation is defined from the inside of the building), the Y axis extends laterally from back to front and the Z axis extends vertically from bottom to top. Hereinafter, the terms “length, width and height” are defined respectively with respect to the X, Y and Z axes.

[0004] The window sill 100 thus has a length, defined along the X axis, which is adapted to correspond to the length of the lower horizontal edge of the opening. The window sill 100 has a width greater than the thickness of the building wall so that the window sill 100 projects relative to said wall so as to direct raindrops away from the building wall. The window sill 100 thus comprises a rear edge 100A, intended to receive a window and a front edge 100B, intended to project outwards and two lateral edges 100D, 100G connecting the rear edge 100A to the front edge 100B. Typically, as illustrated in [Fig.l], the window sill 100 has a drainage surface 101 that is inclined to guide raindrops away from the building wall toward the front edge 100B.The flow surface 101 generally represents more than 50% of the upper surface of the window sill 100.

[0005] The window sill 100 further comprises, at its rear edge 100A, a vertical wall known to those skilled in the art under the designation of rear rejingot 102 which makes it possible, on the one hand, to support the weight of the window and, on the other hand, to prevent the circulation of water towards the rear from the flow surface 101, especially under the effect of the wind.

[0006] With reference to [Fig. 2], there is shown schematically a building wall P of a building in which an opening OF is formed which is rectangular. A window sill 100 is positioned at the lower edge of the opening OF so that the rear edge 100A is on the inner side INT of the building and the front edge 100B is on the outer side EXT.

[0007] With reference to [Fig. 3], to install a window, a craftsman must first put in place a sealing member 103 at the periphery of the opening OF in order to prevent air circulation between the window and its opening OF. The sealing member 103 is for example in the form of a mastic seal, an impregnated foam or a sealing membrane. In practice, as illustrated in [Fig. 3], the sealing member 103 comprises a lower portion 103P extending lengthwise on the rear rejingot 102.

[0008] To fix the window to the construction wall P, the latter is first positioned resting on the rear rejingot 102 so that the latter supports the weight of the window. The window can then be secured to the construction wall P with fasteners, in particular, side fasteners and top fasteners.

[0009] In practice, as illustrated in Figures 4 and 5, before positioning a window F resting on the rear rejingot 102, the craftsman places on the rear rejingot 102 one or more support wedges 104 near the lower portion 103P of the sealing member 103. These support wedges 104 make it possible to support the weight of the window and thus prevent the lower portion 103P of the sealing member 103 from being crushed (compressed excessively) by the weight of the window F, which would affect the sealing performance.

[0010] The use of support wedges 104 is impractical since they are likely to move or fall when the craftsman lifts the window F. As a result, the lower portion 103P of the sealing member 103 may be partially crushed, which affects the sealing. In some more critical cases, the support wedges 104 are omitted by the craftsman, which results in the aforementioned disadvantages. Furthermore, the placement of the sealing member 103 by the craftsman is generally imprecise, which negatively affects the sealing performance when placing the window F.

[0011] The invention thus aims to eliminate at least some of these drawbacks by allowing a craftsman to install a window in a practical manner while ensuring optimal sealing. PRESENTATION OF THE INVENTION

[0012] The invention relates to a window sill configured to be mounted in a opening in a building wall separating an interior space from an exterior space, the window sill comprising: • a rear edge configured to be positioned on the interior space side and a front edge configured to be positioned on the exterior space side, • a drainage surface that is sloped to allow rainwater to flow towards the front edge, and • a rear rejingot extending at the rear edge which is raised relative to the flow surface.

[0013] The window sill is notable in that the rear rejingot comprises: • at least one support portion configured to support a window, and • at least one sealing portion configured to receive a member sealing, the support portion being positioned behind the sealing portion and raised relative to the sealing portion so as to support the window without crushing the sealing member when the window is mounted.

[0014] Thanks to the invention, the rear rejingot of the window sill advantageously comprises two separate portions in order to support the sealing member and the window. This makes it possible, on the one hand, to precisely position the sealing member by taking advantage of the concave relief formed between the two portions. In addition, this makes it possible to avoid any excessive compression of the sealing member in order to improve overall sealing performance when installing a window. It is no longer necessary for a craftsman to use support shims, which allows him to save material and assembly time.

[0015] According to one aspect, the rear rejingot extends over the entire length of the window sill. This allows the sealing member to be continuously received. The sealing portion is preferably continuous.

[0016] According to one aspect, the rear rejingot has a U-shape whose concavity faces forward.

[0017] According to one aspect, the support portion is raised relative to the sealing portion by a height of between 3 mm and 10 mm, preferably between 4 mm and 6 mm. Such an elevation makes it possible to avoid any excessive compression of a sealing member.

[0018] According to one aspect, the support portion has a width of between 10mm and 26mm, preferably between 12mm and 24mm. This makes it possible to ensure stable support of a window.

[0019] According to one aspect, the sealing portion has a width of between 15mm and 29mm, preferably between 20mm and 24mm. This allows for convenient positioning of the sealing member.

[0020] According to one aspect, the sealing portion is raised relative to the flow surface by a height of between 20 mm and 30 mm. This makes it possible to prevent any rise of rainwater towards the interior space.

[0021] According to an optional aspect, the window sill comprises side rejingots whose height is less than the sealing portion. According to one aspect, the sealing portion is planar. According to one aspect, the support portion is planar.

[0022] According to one aspect, the rear rejingot comprises a central portion and two side portions, the side portions extending in a projecting manner.

[0023] According to one aspect, the width of the sealing portion is greater in the lateral portion than in a central portion.

[0024] According to one aspect, the window sill is symmetrical with respect to a transverse plane of vertical symmetry.

[0025] The invention also relates to a method of mounting a window in an opening of a building wall of a building separating an interior space from an exterior space, a window sill as presented above being mounted in the opening, its rear edge being positioned on the interior space side and its front edge being positioned on the exterior space side, the method comprising steps consisting of: • Position a sealing member on the sealing portion of the rear rejingot, • Rest the window on the support portion and • Fix the window to the construction wall. PRESENTATION OF FIGURES

[0026] The invention will be better understood on reading the description which follows, given by way of example, and referring to the following figures, given by way of non-limiting examples, in which identical references are given to similar objects.

[0027] [Fig.l] is a schematic representation of a window sill according to the prior art.

[0028] [Fig.2], [Fig.3], [Fig.4] and [Fig.5] are schematic representations of the mounting of a window in an opening equipped with a window sill according to the prior art.

[0029] [Fig.6] is a schematic perspective representation of a window sill according to one embodiment of the invention.

[0030] [Fig.7] is a schematic representation seen from above of the window sill of [Fig.6].

[0031] [Fig.8] is a schematic cross-sectional representation of a support of window according to one embodiment.

[0032] [Fig.9] is a close-up perspective schematic representation of one end of the rear rejingot of the window sill of [Fig.6].

[0033] [Fig. 10] is a schematic representation from above of [Fig.9].

[0034] [Fig. 11], [Fig. 12] and [Fig. 13] are schematic representations of the mounting of a window in an opening equipped with a window sill according to one embodiment of the invention.

[0035] [Fig. 14] is a schematic sectional representation of a window mounted on a window sill according to one embodiment of the invention.

[0036] It should be noted that the figures set out the invention in detail to implement the invention, said figures can of course be used to better define the invention where appropriate. DETAILED DESCRIPTION OF THE INVENTION

[0037] As illustrated in [Fig.l 1], the invention relates to a window sill 1 configured to be mounted in an opening OF of a construction wall P of a building separating an interior space INT from an exterior space EXT.

[0038] A window sill 1 according to one embodiment of the invention is shown schematically in Figures 6 and 7. The window sill 1 is in the form of a concrete part of generally parallelepiped shape. It goes without saying, however, that other materials could be suitable. The window sill 1 is preferably made by molding.

[0039] In [Fig.6], the window sill 1 is defined in an orthogonal coordinate system (X, Y, Z) in which the X axis extends longitudinally from right to left (the orientation is defined from the interior space INT), the Y axis extends laterally from back to front and the Z axis extends vertically from bottom to top. Subsequently, the terms "length, width and height" are defined respectively with respect to the X, Y and Z axes.

[0040] The length of the window sill 1 depends on the opening OF and is generally between 100cm and 250cm. The width of the window sill 1 is preferably between 30cm and 50cm.

[0041] The window sill 1 comprises a rear edge IA configured to be positioned on the side of the interior space INT and a front edge IB configured to be positioned on the side of the exterior space EXT. The window sill 1 further comprises a drainage surface 10 which is inclined to allow the flow of rainwater towards the front edge IB. Preferably, the drainage surface 10 has a slope greater than 2.5°.

[0042] The window sill 1 comprises a rear rejingot 2 extending at the edge rear IA which is raised relative to the flow surface 10.

[0043] The invention is remarkable in that the rear rejingot 2 comprises: • at least one support portion 21 configured to support a window F, and • at least one sealing portion 22 configured to receive a sealing member 3, the support portion 21 being positioned behind the sealing portion 22 and raised relative to the sealing portion 22 so as to support the window F without compressing the sealing member 3 when the window F is installed.

[0044] Advantageously, the rear rejingot 2 makes it possible to receive the sealing member 3 without risk of compression given that the receiving surface of the sealing member 3 is at a different height from the support surface of the window F. Any excessive compression (crushing) of the sealing member 3 is thus avoided and no added support shim needs to be used.

[0045] As illustrated in Figures 6 and 7, the rear rejingot 2 extends over the entire length of the window sill 1 so as to allow stable support of the window.

[0046] In this example, the rear rejingot 2 has a U-shape whose concavity is turned towards the front. This advantageously makes it possible to ensure precise positioning of the sealing member 3 to extend to the periphery of the opening OF on an inner face of the construction wall P as illustrated in [Fig. 12].

[0047] In this example, with reference to [Fig.7], the rear rejingot 2 comprises a central part 2A and two lateral parts 2B. The lateral parts 2A extend projecting relative to the window sill 1 so as to form ears which extend towards the interior space INT. This makes it possible to form a continuous receiving surface with the inner face of the construction wall P for positioning the sealing member 3. As illustrated in [Fig.7], the window sill 1 is symmetrical relative to a transverse plane of vertical symmetry AA.

[0048] With reference to [Fig.8], the support portion 21 is raised relative to the sealing portion 22 by a height H1 of between 3mm and 10mm, preferably between 4mm and 6mm. This advantageously makes it possible to receive a sealing member 3 without risk of excessive compression. The sealing portion 22 is raised relative to the flow surface 10 by a height H2 of between 20mm and 30mm in order to prevent any circulation of water towards the interior space INT, in particular, under the effect of the wind.

[0049] As illustrated in [Fig.9] and 10, the support portion 21 has a width of between 10mm and 26mm, preferably between 12mm and 24mm. The support portion 21 is flat to improve stability. Such a support portion 21 is sufficient to position the window stably. In this example, the portion support portion 21 is continuous to allow stable reception of the window. It nevertheless goes without saying that the support portion 21 could be discontinuous in the manner of a plurality of support wedges.

[0050] The sealing portion 22 has a width of between 15mm and 29mm, preferably between 20mm and 24mm. The sealing portion 22 is flat. Such a sealing portion 22 makes it possible to precisely position the sealing member 3. In addition, the relief formed by the support portion 21 makes it possible to guide the positioning of the sealing member 3 on the sealing portion 22. Advantageously, the sealing member is positioned in a concavity formed between the sealing portion 22 and the support portion 21 as illustrated in [Fig. 14].

[0051] In this example, the width of the sealing portion 22 is greater in the lateral part 2B than in a central part 2A. This makes it possible to accommodate a sealing member of great thickness, in particular 20 mm.

[0052] In this example, as illustrated in Figures 6 and 7, the window sill 1 comprises lateral rejingots 11 whose height is less than the sealing portion 22. The lateral rejingots 11 extend at least over a rear portion of a lateral edge so as to prevent lateral runoff of rainwater which would soil the construction wall P. This aspect is optional.

[0053] With reference to figures 11 to 14, a method of mounting a window F in an opening OF of a construction wall P of a building separating an interior space INT from an exterior space EXT will be presented.

[0054] As illustrated in [Fig.l 1], a window sill 1, as presented previously, is mounted in the opening OF, in particular, on a lower edge. The window sill 1 is installed in a simplified manner. Its rear edge IA is positioned on the side of the interior space INT and its front edge IB is positioned on the side of the exterior space EXT.

[0055] With reference to [Fig. 12], the method comprises a step consisting of positioning a sealing member 3 at the periphery of the opening OF in order to prevent air circulation between the window and its opening OF to allow thermal and sound insulation as well as air and water insulation.

[0056] The method more particularly comprises a step consisting of positioning a sealing member 3 on the sealing portion 22 of the rear rejingot 2. As illustrated in [Fig. 12], the sealing member 3 comprises a lower portion 3P which extends along the length of the rear rejingot 2. This lower portion 3P forms a seal to take up in particular the expansions between the window and the wall.

[0057] Advantageously, as illustrated in [Fig. 14], the relief formed by the support portion 21 makes it possible to precisely position the sealing member 3 on the sealing portion 22, which ensures optimal sealing. The positioning step is also rapid.

[0058] Preferably, the sealing member 3 is in the form of a mastic seal, a foam or a sealing membrane.

[0059] With reference to [Fig. 13], the method comprises a step of placing the window F in contact with the support portion 21. As a result, the sealing member 3, positioned on the sealing portion 22, is compressed without being crushed as illustrated in [Fig. 14]. The sealing characteristics are not affected.

[0060] Next, the method comprises a step of fixing the window F to the building wall P, for example, using a plurality of side / top fasteners.

[0061] Thanks to the invention, any risk of compression of the sealing member 3 is eliminated. In addition, the installation of a window F is quick and practical. It is advantageously no longer necessary for a craftsman to install support wedges.

Claims

Claims

1. Window sill (1) configured to be mounted in an opening (OF) of a building wall (P) of a building separating an interior space (INT) from an exterior space (EXT), the window sill (1) comprising: • a rear edge (IA) configured to be positioned on the interior space (INT) side and a front edge (IB) configured to be positioned on the exterior space (EXT) side, • a drainage surface (10) which is inclined to allow rainwater to flow towards the front edge (IB), • a rear rejingot (2) extending at the rear edge (IA) which is raised relative to the drainage surface (10), window sill (1) characterized in that the rear rejingot (2) has a U-shape whose concavity is facing forward and that it comprises: • at least one support portion (21) configured to support a window (F),and • at least one sealing portion (22) configured to receive a sealing member (3), the support portion (21) being positioned behind the sealing portion (22) and raised relative to the sealing portion (22) so as to support the window (F) without crushing the sealing member (3) when mounting the window (F).,

2. A window sill (1) according to claim 1, wherein the rear rejingot (2) extends the entire length of the window sill (1).

3. Window sill (1) according to one of claims 1 to 2, wherein the support portion (21) is raised relative to the sealing portion (22) by a height (Hl) of between 3mm and 10mm, preferably between 4mm and 6mm.

4. Window sill (1) according to one of claims 1 to 3, wherein the support portion (21) has a width of between 10mm and 26mm, preferably between 12mm and 24mm.

5. Window sill (1) according to one of claims 1 to 4, wherein the sealing portion (22) has a width of between 15mm and 29mm, preferably between 20mm and 24mm.

6. Window sill (1) according to one of claims 1 to 5, wherein the sealing portion (22) is raised relative to the flow surface (10) by a height (H2) of between 20mm and 30mm.

7. Window sill (1) according to one of claims 1 to 6, comprising lateral rejingots (11) whose height is less than the sealing portion (22).

8. Window sill (1) according to one of claims 1 to 7, in which the rear rejingot (2) comprises a central part (2A) and two lateral parts (2B), the lateral parts (2B) extending in projection.

9. Method for mounting a window (F) in an opening (OF) of a building wall (P) of a building separating an interior space (INT) from an exterior space (EXT), a window sill (1) according to one of claims 1 to 8 being mounted in the opening (OF), its rear edge (IA) being positioned on the side of the interior space (INT) and its front edge (IB) being positioned on the side of the exterior space (EXT), the method comprising steps consisting of: • Positioning a sealing member (3) on the sealing portion (22) of the rear rejingot (2), • Resting the window (F) on the support portion (21) and • Fixing the window (F) to the building wall (P).

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