Roof window with diverter rail

Abstract

A roof window (1) comprising a frame (2), a sash (3), a pane element (4) and a cover assembly (10) comprising a diverter rail (103) extending lengthwise along and projecting from a top frame member (21) to form a diverter angle (A) of 45 degrees to 89 degrees with respect to a plane (C) defined by an outer surface (4e) of the pane element (4).

Description

Technical Field

[0001] The present invention relates to a roof window, which includes a window sash, a window pane element, a covering assembly and a frame defining a frame opening, the covering assembly including a diverter track, wherein the window pane element has an inner surface and an opposite outer surface, the inner surface is configured to face the interior of a building, and the outer surface is configured to face away from the interior of the building, wherein the frame includes a top frame member, and the window sash includes a top window sash member, the top frame member and the top window sash member extend in parallel along the length direction, and wherein the covering assembly includes a top flashing member and a top window sash covering, the top flashing member extends along the top frame member in the length direction, and the top window sash covering extends along the top window sash member in the length direction. Background Art

[0002] When installing a window in a roof, the first and most important thing is to ensure that the roof window itself is watertight, and this can be particularly difficult when the pitch of the roof is very high or very low. A particular challenge relates to watertightness at the top of the roof window, where water draining from the roof surface ends up on the gutter-shaped top flashing member from which the water is directed to the sides of the window and drained via the side flashing members. When a large amount of water leaves the roof above the roof window, the top flashing member may overflow, allowing water to enter between the sash and frame of the roof window. Summary of the invention

[0003] Against this background, it is therefore an object of the present invention to provide a roof window by means of which the water tightness at the top of the roof window can be improved.

[0004] This and other objects are achieved by a roof window of the type mentioned in the introduction, which is further characterized in that a diverter track extends along a top frame member in a length direction, the diverter track having a proximal edge attached to the top frame member, and an exposed diverter surface facing away from the top frame member and protruding from the top frame member, the exposed diverter surface forming a diverter angle of 45 degrees to 89 degrees relative to a plane defined by an outer surface of the window pane.

[0005] The exposed deflector surface is exposed to wind and weather and faces away from the top frame member and thus forms a surface facing the wind and water falling from the roof above the roof window. Thus, the exposed deflector surface faces in a direction opposite to the direction of water flow falling from the roof above the roof window.

[0006] When a large amount of water falls from the roof above the roof window, the angle of the diverter track causes eddies to form between the diverter track and the top flashing. As more water falls from the roof above the roof window, it has been shown that these eddies deflect the water so that it jumps over the top of the diverter track and onto the exterior surface of the pane. In this way, the amount of water that is drained via the flashing is reduced, and the risk of water entering between the sash and frame of the roof window is also reduced.

[0007] The exposed diverter surface is the main surface of the diverter track, whereby the projection of the exposed diverter surface into the external direction measures at least 10 mm, preferably at least 20 mm.

[0008] In order to achieve the best effect of the eddy currents, it is presently considered advantageous that the distance measured perpendicular to the outer surface of the pane between the outermost point on the diverter track viewed in the outer direction and the outermost point of the top frame member viewed in the outer direction is less than 10 mm, preferably less than 5 mm. However, it should be noted that several factors such as the design of the sash and top sash covering and the distance between the diverter track and the pane element measured parallel to the outer surface of the pane will also be important.

[0009] The shape of the diverter track will have a significant impact on the formation of vortices.

[0010] In one embodiment, the exposed diverter surface of the diverter track forms an internal angle of 80 to 135 degrees relative to an abutment surface of the diverter track that extends away from the top frame member. In this way, the diverter track forms a channel extending along the length that can help divert water to both sides of the window. The optimal size of the internal angle will depend on factors such as the pitch of the roof and the amount of water to be drained, which in turn depend on factors such as the climate and the area of ​​the roof above the roof window.

[0011] In another improvement of the above-mentioned embodiment, the ratio of the deflector angle to the inner angle is in the range of 0.30 to 0.95, preferably in the range of 0.50 to 0.90. Such a ratio is conducive to the formation of vortices and the deflection of water.

[0012] In one embodiment, the diverter track includes a body and a head flange, the body extending from a proximal edge and having a distal edge opposite the proximal edge, and the head flange protruding from the body toward the top flashing member at the distal edge. The head flange will both assist in the formation of eddies and prevent overflow. As will be understood by practitioners in the art, the direction toward the top flashing member is also the direction away from the top frame member. In another refinement, the head flange includes an abutment surface that forms an internal angle with the exposed diverter surface.

[0013] The head flange may also protrude towards the top frame member, thereby forming a guide surface for water to jump over the vortex and at least partially cover the gap between the main body of the diverter track and the top sash cover.

[0014] The diverter track may also include or may alternatively include a diverter flange between the proximal edge and the distal edge, the diverter flange protruding away from the top frame member. Such a diverter flange may cause primary and secondary vortices to form below and above the diverter flange, or may form vortices only above the diverter flange in an external direction, thereby making the water below the diverter flange calmer and able to flow more freely toward the side of the window. In another refinement, the diverter flange includes an abutment surface that forms an internal angle with the exposed diverter surface.

[0015] The diverter track may be held in place by attachment to the top flashing or top sash covering, or may even be integral with one or both of them. For example, attachment to the top flashing or top sash covering may be achieved by providing it with a bent edge adapted to receive the proximal edge of the diverter track.

[0016] Alternatively or additionally, the proximal edge of the diverter track may be inserted into a groove in the top frame member or into a groove in a coupling unit attached to the top frame member. In one embodiment, the proximal edge of the diverter track is inserted into the bent edge of the top flashing member, which is then inserted into the groove in the coupling unit.

[0017] Sealing strips and / or sealing members may be employed to waterproof the connection between the diverter track and the top flashing member, the top sash cover, the top frame member and / or the joint unit.

[0018] As also mentioned above, the inclination of the roof will be important for the function of the diverter track and the amount of water that eventually reaches the top flashing. In order to be able to use the roof window in different roofs, it may be advantageous that the diverter angle is adjustable and / or the diverter track is removable and / or replaceable.

[0019] In one embodiment, the diverter track engages with a sealing lip on an engagement unit on the top frame member. This provides additional waterproofing by preventing water from penetrating along the outer side of the top frame member.

[0020] In order to collect and drain any water that may still penetrate along the outer side of the top frame member, the diverter track can be provided with a drainage groove. In the absence of a sealing lip engaging with the diverter flange, this can of course also be advantageous.

[0021] In one embodiment, the diverter track has an extension element attached that preferably raises the outermost point on the diverter track relative to the outer surface of the pane element, thereby helping to lift the water even further. The extension element is preferably angled relative to the exposed diverter surface and extends back toward the top frame member. The extension element can be a plate-shaped track and / or can be made of metal or polymer.

[0022] A sealing gasket may be provided on the diverter track and / or on the extension element, if present, and covers the gap between the diverter track and the top sash cover, thereby preventing water from penetrating along the outside of the top frame member. The sealing gasket and any sealing member and / or sealing lip are preferably made of one or more elastomers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the following description, embodiments of the present invention will be described with reference to the accompanying drawings.

[0024] Figure 1 is a perspective view of a roof window with a cover assembly;

[0025] Figure 2 It is a partial cutaway stereogram of the top waterproof component;

[0026] Figure 3 and Figure 2 Correspondingly, it is just observed from a different angle;

[0027] Figure 4 yes Figure 2 and Figure 3 A cross-sectional view of the top waterproof member in FIG.

[0028] Figure 5 is along with Figure 1 A cross-sectional view corresponding to the cross-section along line VV in FIG. 1 and an enlarged detail thereof;

[0029] Figure 6 is a cross-sectional view of a top portion of another roof window with a cover assembly;

[0030] Figure 7 is a cross-sectional view of the top of the cover assembly; and

[0031] Figure 8 yes Figure 7 An enlarged view of the detail marked VIII in FIG.

[0032] Fig. 9 The diverter track is shown in use;

[0033] Fig.10 Another embodiment of a diverter track is shown in use; and

[0034] Fig.11 is along with Figure 1 The cross-sectional view corresponds to the cross-sectional view along the line XI-XI. DETAILED DESCRIPTION

[0035] First refer to Figure 1 , the roof window 1 is shown with the covering assembly 10, wherein the right side portion of the top flashing member 1011 is shown in a delivery state before being adapted to the shape of a roofing material (not shown) to be used with the roof window.

[0036] exist Figures 2 to 4 The left side portion of the top flashing member 1011 in the delivery state is shown in more detail in FIG.

[0037] As can be seen, the top flashing member comprises a flange 1017 which, in the installed state, will protrude substantially parallel to the outer surface 4e of the pane element 4 of the roof window 1 and to which is attached a diverter track 103. In this embodiment, the diverter track has a bent edge 1036 which fits on the flange 1017 on the top flashing member, but the bent edge 1036 may also be a flange of the diverter track which fits into the bent edge of the top flashing member, or the diverter track may be an integral part of the top flashing member.

[0038] The diverter rail 103 extends in the length direction L of the top flashing element and will therefore extend along the top frame element of the roof window 1 in the installed state.

[0039] exist Figure 5 In Figures 2 to 4 The top flashing member 1011 and the diverter track 103 of the shown top flashing member and the diverter track are shown as being attached to a roof window 1 installed in a roof structure 11, the roof window being illustrated only by the top frame member 21, the joining unit 8 and the insulating frame 7, and the roof structure being illustrated only by the slats 111 and the lower roof 113.

[0040] As in Figure 5 As best seen in the enlarged view at the top of , the flange 1017 of the top flashing member 1011 and the bent edge 1036 of the diverter rail 103 are inserted into the groove 85 in the coupling unit 8, but they can also be inserted into the groove in the top frame member 21.

[0041] exist Figures 2 to 5In the embodiment of the present invention, the diverter track 103 includes a body 1031 having a distal edge 1033 and a head flange 1034 protruding from the body at the distal edge. The head flange 1034 gives the diverter track an overall shape of the letter T, and has a first section 10341 protruding toward the top flashing member 1011 (and therefore away from the top frame member 21) and a second section 10342 protruding toward the top frame member 21.

[0042] The diverter rail 103 protrudes from the top frame member 21 and has an exposed diverter surface 103d, which forms a diverter angle A of about 80 degrees relative to the plane C defined by the outer surface 4e of the window pane element 4, and the head flange 1034 includes a surface that is an abutting surface with the exposed diverter surface 103d and forms an inner angle B of 90 degrees with the exposed diverter surface 103d. Here, the relationship between the diverter angle A and the inner angle B is 0.89.

[0043] The outermost point 103 e on the diverter rail 103 , viewed in the outer direction E, is positioned at a distance D above a plane C defined by the outer surface 4 e of the pane element 4 .

[0044] In the embodiment shown in the drawings, the outermost point 103e on the diverter rail 103 viewed along the outer direction E is positioned flush with the outermost point 21e of the top frame member 21, but in some cases there may be a certain distance between the outermost point 103e and the outermost point 21e.

[0045] Now go to Figure 6 , which shows an alternative embodiment of the diverter track 103. In this embodiment, the head flange 1034 only protrudes toward the top flashing member 1011 (and therefore protrudes away from the top frame member 21), but is located on a section of the diverter track that is bent back toward the top frame member 21 relative to the main body 1031. The diverter track 103 also includes a diverter flange 1035 that protrudes away from the top frame member 21, the function of which will be described below with reference to Fig.10 Describe it. Figure 6 In the embodiment, the diverter angle A is about 70 degrees. Here, the internal angle B formed at the diverter flange 1035 is 110 degrees, the diverter flange 1035 including the abutment surface with the exposed diverter surface 103d, and the relationship between the diverter angle A and the internal angle B is 0.64.

[0046] exist Figure 7 Another embodiment of the diverter track 103 is shown in FIG. 1 , wherein the diverter angle A is approximately 60 degrees. Figure 8As can be seen in the enlarged view in , the connection between the bent edge 1036 of the diverter track and the flange 1017 of the top waterproof member is sealed here by a sealing strip 1037. Here, the internal angle B is 120 degrees, and the relationship between the diverter angle A and the internal angle B is 0.50.

[0047] In the illustrated embodiment, the diverter track 103 is made of one sheet metal piece, such as stainless steel, that has been bent into shape. However, the diverter track may also be made of two or more pieces, or may be made by other means such as molding or extrusion.

[0048] Now go to Figures 9 and 10 , which illustrates the function of the diverter track 103.

[0049] Due to the angle of the diverter track, when the water flow from the roof above the roof window is large, a vortex 12 is formed between the diverter track 103, specifically the exposed diverter surface 103d, and the top flashing member 1011. When more water arrives, as shown by the double arrows, the water will be deflected by the vortex and thus forced upward over the head flange and onto the top sash cover 1021s, as shown in FIG. Fig.10 As shown, this water can drain from the top sash cover 1021s onto the exterior surface 4e of the pane element. The distance D can help produce this effect.

[0050] Fig.10 The uppermost vortex in the roof window between the head flange 1034 and the diverter flange 1035 will generally only form when the water load is very high. When less water is present, the channel formed between the head flange 1034 and the diverter flange 1035 can be used as a channel to direct water toward the sides of the roof window. The channel formed between the diverter flange 1035 and the top flashing member 1011 can also be used to direct water toward the sides of the roof window, and in some cases, the water flow in this channel may be relatively calm while there is a vortex between the head flange 1034 and the diverter flange 1035.

[0051] For further waterproofing, in all embodiments, the diverter track 103 is shown in contact with the sealing lip 892 on the engagement unit 8 on the top frame member 21, and the diverter track is all provided with a drainage groove 1038, which is used to drain any water that passes between the sealing lip and the diverter track. These features are considered to be advantageous, but not strictly necessary. It can be seen that the drainage groove 1038 is formed in the portion of the diverter track 103 that is not exposed to wind and weather, while the exposed diverter surface 103 faces away from the top frame member and is exposed to wind and weather.

[0052] exist Fig.11Another embodiment of the diverter track 103 is shown in . Here, the diverter track is provided with an extension element 1039 which extends upwardly at an angle relative to the second section 10342 of the head flange and extends back toward the top frame member at an angle relative to the exposed diverter surface 103d. In this way, the outermost point 103e on the diverter track 103 is positioned higher than when a diverter track without an extension element is used, thereby increasing the distance D and also raising the outermost point 103e relative to the top sash covering 1021s. Thus, with reference to Fig. 9 The effect of the description can be enhanced.

[0053] In the illustrated embodiment, the extension element 1039 is attached to the diverter track by having a bent edge that fits over the first section 10341 of the head flange 1034, but other attachment methods are possible including welding and the use of adhesives.

[0054] The extension element 1039 may extend over the entire extension of the diverter track 103 or may be shorter, for example only present where the water load is highest. It is also possible to provide two separate extension elements at a distance from each other on the diverter track.

[0055] In order to further improve the waterproofness, a sealing gasket 10391 is provided on the extension element 1039. Here, the sealing gasket is retained by being inserted into a fold on the extension element, but other attachment methods are possible, including the use of adhesives. The sealing gasket 10391 engages with the top sash cover 1021s and thus supplements the seal already provided by the contact between the sealing lip 892 on the engagement unit 8 and the diverter track 103. In the illustrated embodiment, the sealing gasket has a tubular portion 103911 shown in its undeformed state, which engages with the top sash cover 1021s. The larger internal volume of the tubular part allows for larger deformations and therefore allows the extension element 1039 to move considerably relative to the top sash cover without losing the sealing effect. For example, such movement may be caused by wind loads and / or water loads on the diverter track and / or the extension element. However, other embodiments of the sealing gasket are also possible.

[0056] Although the extension element 1039 and the sealing gasket 10391 are only shown for use with a diverter rail 103 having a head flange 1034, it should be understood that similar extension elements and / or sealing gaskets may also be used with diverter rails without a head flange and / or with diverter rails having a diverter flange.

[0057] Fig.11The other details of the embodiments in correspond to those described with reference to the preceding embodiments.

[0058] Reference numerals list

[0059] 1 Roof windows

[0060] 10 Covering Components

[0061] 1011 top waterproof component

[0062] 1017 Flange of top waterproof component

[0063] 1021s Top Sash Cover

[0064] 103 steering track

[0065] 103d Exposed steering surface

[0066] 103e outermost point

[0067] 1031 Entity

[0068] 1033 distal end

[0069] 1034 Head flange

[0070] 10341 Section 1

[0071] 10342 Second Section

[0072] 1035 steering gear flange

[0073] 1036 Bend Edge

[0074] 1037 sealing strip

[0075] 1038 drainage ditch

[0076] 1039 extension element

[0077] 10391 Sealing gasket

[0078] 11 Roof structure

[0079] 111 Lath

[0080] 113 Under the roof

[0081] 12 Eddy Current

[0082] 21 Top frame member

[0083] 21e Outermost point

[0084] 31 Top sash member

[0085] 4 Pane component

[0086] 4i Inner surface of the pane element

[0087] 4e External surface of the pane element

[0088] 7 Insulation frame

[0089] 8 Jointing unit

[0090] 85 Grooves

[0091] 892 Sealing lip

[0092] A Steering gear angle of the steering gear track

[0093] B Internal angle of the steering track

[0094] D Distance

[0095] C plane defined by the exterior surfaces of the pane elements

[0096] E external direction

[0097] L Length direction

Claims

1. A roof window (1) comprising a window sash (3), a pane element (4), a covering assembly (10) and a frame (2) defining a frame opening, the covering assembly (10) comprising a diverter track (103), wherein: The window pane element has an inner surface (4i) and an opposite outer surface (4e), the inner surface (4i) being configured to face the interior of the building along an inner direction, and the outer surface (4e) being configured to face away from the interior of the building along an outer direction (E), wherein the frame comprises a top frame member (21), and the window sash comprises a top window sash member (31), the top frame member and the top window sash member extending in parallel along a length direction (L), and wherein the covering assembly comprises a top waterproofing member (1011) extending along the top frame member (21) in the length direction, and a top window sash covering member (1021s) extending along the top window sash member (31) in the length direction, characterized in that The diverter track (103) extends along the top frame member (21) in the length direction, and has a proximal edge attached to the top frame member, and an exposed diverter surface (103d) facing away from the top frame member (21) and protruding from the top frame member, and the exposed diverter surface (103d) forms a diverter angle (A) of 45 degrees to 89 degrees relative to a plane (C) defined by the outer surface (4e) of the window element (4).

2. The roof window (1) according to claim 1, wherein: The distance (D) measured perpendicular to the outer surface (4e) of the pane (4) between the outermost point (103e) on the diverter track observed along the outer direction (E) and the outermost point (21e) of the top frame member (21) observed along the outer direction (E) is less than 10 mm, preferably less than 5 mm.

3. The roof window (1) according to claim 1 or 2, wherein: The exposed diverter surface (103d) of the diverter track (103) forms an internal angle (B) of 80 to 135 degrees relative to an adjacent surface of the diverter track (103), the adjacent surface extending away from the top frame member (21).

4. The roof window (1) according to claim 3, wherein: The ratio of the diverter angle (A) to the inner angle (B) is in the interval 0.30 to 0.95, preferably in the interval 0.50 to 0.

90.

5. Roof window (1) according to one or more of the preceding claims, wherein: The turning track (103) is provided with a drainage groove (1038).

6. Roof window (1) according to one or more of the preceding claims, wherein: The diverter track (103) engages with a sealing lip (892) on an engagement unit (8) on the top frame member (21).

7. Roof window (1) according to one or more of the preceding claims, wherein: The diverter track (103) has an extension element (1039) attached to it.

8. Roof window (1) according to one or more of the preceding claims, wherein: A sealing gasket (10391) is provided on the diverter rail (103) and / or on the extension element (1039), and the sealing gasket (10391) covers the gap between the diverter rail (103) and the top sash cover 1021s.

9. Roof window (1) according to one or more of the preceding claims, wherein: The diverter track (103) includes a main body (1031) and a head flange (1034), wherein the main body (1031) extends from the proximal edge and has a distal edge (1033) opposite to the proximal edge, and the head flange (1034) protrudes from the main body away from the top frame member (21) at the distal edge, preferably, wherein the head flange (1034) includes the adjacent surface forming an internal angle (B) with the exposed diverter surface (103d).

10. The roof window (1) according to claim 9, wherein: The head flange (1034) also protrudes toward the top frame member (21).

11. Roof window (1) according to one or more of the preceding claims, wherein The diverter track (103) includes a diverter flange (1035) located between the proximal edge and the distal edge, and the diverter flange protrudes away from the top frame member (21), preferably, wherein the diverter flange (1035) includes the adjacent surface forming an internal angle (B) with the exposed diverter surface (103d).

12. Roof window (1) according to one or more of the preceding claims, wherein: The diverter track (103) is attached to the top flashing member (1011) or the top sash cover (1021s).

13. Roof window (1) according to one or more of the preceding claims, wherein: The proximal edge of the diverter rail (103) is inserted into a groove (85) in the top frame member (21) or into a groove (85) in a coupling unit (8) attached to the top frame member (21).

14. Roof window (1) according to one or more of the preceding claims, wherein The diverter angle (A) (103) is adjustable.

15. Roof window (1) according to one or more of the preceding claims, wherein The diverter track (103) is replaceable.

16. Roof window (1) according to one or more of the preceding claims, wherein The diverter track (103) is attached to a flange (1017) of the top flashing member (1011).

17. The roof window (1) according to claim 16, wherein: The diverter track (103) includes a bent edge (1036), and the flange (1017) of the top flashing member (1011) is inserted into the bent edge.

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