The invention discloses a set of side frame covers according to the preamble of claim 1, for a roof window, protecting both the window and the attic where the roof window is installed against weather conditions, such as rain, snow and wind. The disclosed set of covers is intended for use in pivot windows or dual action tilt and pivot windows.

The prior art, includes roof windows with a set of covers for the side frames of a window frame and a sash frame with trapezoidal profile trims.

The window frame covers feature outer side seals, corresponding to the outer bends of the trims.

The covers do not feature seals from the sash frame side, as well as a window pane installed in the frame.

BE1015350A3 discloses a set of side frame covers for a roof window according to the preamble of claim 1.

A set of side frame covers for a roof window comprising side frame covers for a window frame, hereinafter referred to as the "frame covers" and side frame covers of a sash frame, hereinafter referred to as the "sash covers" with the trims, covering the frame and sash covers, said covers further including elastomeric seals between the trims and the frame and sash covers, attached to the trims. These seals seal at least the gaps between the trim and the sash covers, and the seal which is attached to one of these covers includes a movable sealing blade which in a closed window position adjoins said sash cover. Preferably, said seals forming a sealing kit for the gap between the trims and the sash covers, from the window pane side, and the gap between the trims and the frame covers, from the inside of the window side. The sealing kit may also include the seals attached to the frame cover or the sash cover.

The sash covers are made of sections, preferably also used as a clamping strip fixing the window pane in the sash frame, said sections comprising an arm adjacent to the window pane. The sash frame section also include a protrusion transverse, preferably perpendicular to the sash frame face, i.e. the surface parallel to the window pane, along the entire sash frame side frame. The frame covers are made of bent sheet and overlap the side surfaces of the window frame and the flashing. The sections of the frame cover are positioned on the window frame face, i.e. the surface parallel to the roof with a protrusion transverse, preferably perpendicular to the window frame face.

The trims comprise edges bent towards the window frame and the sash frame, overlapping the protrusions of the frame and sash covers. Preferably the trims have a trapezoidal profile, and the bent sections overlap the protrusions of the frame and sash covers.

A window fitted with the set of side frame covers is opened by rotating the sash around its horizontal axis. The window may be opened by rotating the sash around the axis of rotation in its central section or as a dual action tilt and pivot window, where the axis of rotation for the tilt function is positioned near the top frames of the window frame and the sash frame. In both versions, each trim is divided into two parts - the bottom trim below the pivot hinge, and the top trim above the pivot hinge. The bottom trim is slightly narrower than the top trim to overlap the top cover in the direction of the rain water flow on the roof window. The set of side frame covers can also be used in a single action window, opened as a pivot window, where the trims are uniform along the entire window length.

In the first version of the invention, according to claim 1, a seal for the gap between the trim and the sash frame comprises a wide fixing surface, adjacent to the inner surface of the trim in its middle section, i.e. to the smaller base of the trapezoid. The fixing surface of the seal is attached to the inner surface of the trim; preferably the seal is glued to the inner surface. The seal along its entire length is fitted with a movable sealing blade, adjoining the sash cover with the window in a closed position, sealing the gap between the sash cover and the trim.

For the seal attached with the fixing surface to the trim, the sealing blade may be arched at the entire seal length, and a free edge of the sealing blade faces the fixing surface. The sealing blade of detailed shape is preferably used in the top trims, for easy fitting the seal to the sash cover and the top trim moving in relation to each other when the window closes. In the bottom trim, located near and moving with the sash, the sealing blade is single and not arched to avoid double thickness at the contact area with the sash cover. The seal attached to the trim with the fixing surface may also include an additional movable sealing blade, adjoining the window frame cover with the window in closed position.

In a preferred embodiment called second version of the invention, a set of side frame covers of a roof window includes an inner side seal, which is located under trims, between the sash cover, and an

inner arch of the trim, from the window pane side. The seal is attached to the sash cover, preferably in the groove in the sash cover protrusion, transverse to the sash face, where the sealing blade of the seal adjoins to the bottom surface of the central part of the trim cross-section, i. e. on the shorter base of the trapezoid, close to the inner arch of this trim, according to claims 4 and 5, or to the bottom surface of the inner arch of the trim with the window in a closed position. The inner side seal complements the seal from the first version of the invention in its sealing function at the sash cover side forming a double seal.

The set of side frame covers of the roof window may further include the outer side seal, between the frame cover and the outer arch of the trim. The seal is attached to the window frame cover made of sheet metal, preferably clamped in a bend of the top cover section. The seal has a T profile, where two stationary arms adjoin the top section of the frame cover. The side outer seal is used mainly in the side frame covers, when the seal from the first version does not feature the additional sealing blade. It may also be used with the seal with an additional sealing blade, forming a double seal from the side window frame side.

Advantages of the invention. The side frame covers for the roof window, due to the seal between the trims and the frame and sash covers provide the protection against weather conditions, i.e. rain, snow or wind. They prevent snow and rain from penetrating the trims and the attic, where the window is installed. The seals with the fixing surface, attaching the seals to the trims, also suppress the noise of rain drops falling on the external trim surfaces.

Preferred embodiments. A set of side frame covers of the present invention is shown as the preferred embodiments in the following figures for the pivot windows, where the following figures show:

Fig. 1

-A roof window, partially opened, pivot type - isometric view, with offset sections marked, A-A for closed window and B-B for partially open window, shown in the figures below.

Fig. 2

-A set of covers with seals with a fixing surface and an arched sealing blade facing the fixing surface, with an outer side seals - in a closed window position, A-A offset section.

Fig. 3

-The set of covers of Fig. 2 - in a partially open window position, B-B offset section.

Fig. 4

-A set of covers with seals with a fixing surface attaching the seals to the trims with an arched sealing blade facing the fixing surface with an additional sealing blade - in a closed window position, A-A offset section.

Fig. 5

-The set of covers of Fig. 4 - in a partially open window position, B-B offset section.

Fig. 6

-A set of covers with a fixing surface attaching the covers to the trims with a long sealing blade and an additional sealing blade - in a closed window position, A-A offset section.

Fig. 7

-The set of covers of Fig. 6 - in a partially closed window position, B-B offset section.

Fig. 8

-A set of covers with an inner side seal and an outer side seal - in a closed window, A-A offset section.

Fig. 9

-The set of covers of Fig. 8 - in a partially open window, B-B offset section.

Fig. 10

-Outer side seal - detail C of Fig. 2, or 10.

Fig. 11

-Inner side seal - detail D of Fig. 8.

The invention is disclosed based on the preferred embodiments for pivot and dual action tilt and pivot windows, which were not included in the figures, but are described with the indication of design similarities and differences in relation to the examples showed in the figures.

The common components of the roof windows in accordance with the embodiments shown. A roof window comprises a window frame 1, seated in a roof plane, said window frame comprising the side frames 11 and a movable sash 2, a frame thereof comprising side frames 21, further including a double window pane 22 with a seal kit and spacers between said window panes. In the middle section of the window, slightly above the half of said window frame 1 length, a pivot hinge is fixed to both side frames 11, joining said frames with the side frames 21 of said sash frame 2. The pivot hinge fixed to the window frame comprises an arched guide, corresponding to the arched slide of the pivot hinge fixed to said sash frame.

Along the entire length of said side frame 11 of said window frame 1, a frame cover 13 made of bent sheet metal, with a profile comprising a section positioned on the window frame face and the section overlapping the side surface of the side frame. The widow frame cover 13 further includes a protrusion 14 perpendicular to the window frame face.

Along the entire length of the side frame 21 of said sash frame 2, a sash cover 23 is installed used as a clamping strip for the window pane 22. The sash cover 23 is a section with a profile including a section adjoining the sash frame face and the clamping section, overlapping the window pane 22 edge. The sash cover 23 further includes a protrusion 24, at the edge of the section, said protrusion being perpendicular to the sash frame face.

The set of side frame covers of a roof window further includes the trims of a trapezoidal profile, made of bent sheet metal. Above a pivot hinge, on both sides of the window are the top trims 15 attached to the side frames 11 of the window frame 1, stationary when the window is opened or closed. Below the pivot hinge 12, on both sides of the window are the bottom trims 25 attached to the side frames 21 of the window frame 1, moving with the sash when the window is opened or closed. In its cross-section, the top trim 15 comprises a middle section, a smaller base of the trapezoid profile, further including an inner bend 16 and an outer bend 17 - both at an obtuse angle in relation to the middle section and facing the frame and sash covers, overlapping the protrusions 14, 24 of said covers. Also the bottom trim 25 in its cross-section comprises a middle section, further including an inner bend 26 and an outer bend 27 - shaped and positioned identical to the top trim.

The distance between the bends: inner 16 and outer 17 of the top trim 15 is slightly larger than the distance between the bends: inner 26 and outer 27 of the bottom trim 25, and the top trim 15 is installed further along the window frame and the sash frame than the bottom trim 25. The top end of said bottom trim 25 is located under the bottom end of the top trim 15 in a closed window position.

Besides the frame cover, sash cover and the trim seals, the window further includes known seal kits attached in the grooves between the side frames 11 of the window frame and the side frames 21 of the sash frame. At the section of the window below the pivot hinges, a single seal 18 is seated in the groove of the side frame 11 of the window frame, and the second seal 28 is seated in the groove of the side frame 21 of the sash frame. At the section of the window above the pivot hinges, both seals 28 are seated in the grooves of the side frame 21 of the sash frame.

Embodiment 1. A set of side frame covers of the roof window shown in Fig. 2 and Fig. 3, comprises a well known outer side seal 3, on the outer surface of a side frame 11 of a window frame 1, between a protrusion 14 of the frame cover 13 and an outer bend of a trim. The seal has a T profile, with two stationary arms 31 of said profile adjoining the protrusion 14 of the frame cover 13, and the top arm clamped with a section 14a of said cover (detail - Fig. 10). A sealing blade 32 of said outer side seal in a closed window position, with its free edge adjoining the bottom surface of an outer bend 17 of a top trim 15, and an outer bend 27 of a bottom trim 25.

At the opposite inner side of the side frames, the set of covers comprises a flat seal 4 with a fixing surface 41, adjoining half of the width of a middle bottom section of the trims 15, 25, and attached to the surface, preferably glued. The sealing blades of the seal 4 cooperate with a protrusion 24 of a sash cover 23, said seals available in two versions, one for the top trim, and the other for the bottom trim. The seal attached to the top trim 15 comprises an arched sealing blade 42, a free end thereof facing the fixing surface 41. The seal is more flexible and better adapts itself to the moving sash trim. A seal attached to the bottom trim 25 comprises a relatively short, straight sealing blade 43. It makes it easy to fit the seal with a single sealing blade layer, under the bottom trim 25, which is nearer to the window compared to the top trim.

Embodiment 2. A set of side frame covers shown in Fig. 4 and Fig. 5, comprises only the flat seals 5 with a fixing surface 51, adhering almost to the entire width of a bottom middle section of the trims 15, 25 and attached to said surface, preferably glued. On the side corresponding to a protrusion 24 of a sash cover 23, a seal 5 is attached to a top trim 15, with an arched sealing blade 52, and said seal 5 fixed to said top trim 25 has a relatively short, straight sealing blade 53. Both versions of the sealing blades are similar to the blades 42 and 43 of the seal 4 of the first embodiment. On the opposite, outer side of the side frames, the seal 5 has an additional sealing blade 54, diagonal in relation to the fixing surface 51, similar to the inclination of the outer bends 17, 27 of the top 15 and the bottom 25 trim. It is supported by the face of a protrusion 14 of a frame cover 13 in a closed window position. The blade (54) is identical for both trims.

Embodiment 3. A set of side frame covers shown in Fig. 6 and 7 comprises only the flat seals. A top trim 15 comprises a seal 6 with a fixing surface 61, adjoining almost the entire width of a bottom middle surface of said trim, and attached to said surface, preferably glued. The seal 6 on the side corresponding to a protrusion 24 of a sash cover 23 comprises a long sealing blade 62, diagonal in relation to the fixing surface 61, similar to an outer bend 16 of a top trim. The long sealing blade 62 overlaps the protrusion 24 of the sash cover 23, and a free edge of said sealing blade rests on the section of said sash cover on the sash frame face. On the opposite side, the seal 6 comprises an additional sealing blade 63, corresponding to a protrusion 14 of a frame cover 13, identical to the sealing blade 54 of the second embodiment. A bottom trim 25 comprises a seal 5 with a fixing surface 51 and a straight sealing blade 53, identical to the second embodiment.

Embodiment 4. A set of side frame covers showed in Fig. 8 and Fig. 9 comprising an inner side seal 8, which is located under trims: upper 15 and bottom trims 25, between sash cover 23 and inner arch 16, 26 of the trims from the window pane side. The seal is seated in the grooves 29 (Detail - Fig. 11) in the protrusions 24 of a sash cover 23. The sealing blades 81 of the inner side seal adjoin with the free ends thereof a top trim 15 and a bottom trim 25, in points close to the inner arch 16 and 26 of these trims. On the opposite outer side of the frames, the set of covers comprises an outer side seal 3, identical to the first embodiment (Fig. 2, 3, and 10).

Dual action windows. Dual action pivot and tilt windows, opened with tilt function, by rotating the windows around the axis near the window frame top frame, or with pivot function with the intermediate arms pivotally mounted to the window frame, said arms fitted with hinges for opening the window in pivot mode, joining the intermediate arms with the side frames of a sash frame. The top trims are attached to the intermediate arms, not to the window frame, as in the pivot action windows. The intermediate arms, in a pivot mode rest on the window frame, and the embodiment no. 1 to 4 shown above apply also to the dual action window opened in pivot mode. When opening the window using the tilt function, the intermediate arms move to the top with the sash, adjoining the side frames of the sash frame. The top trims move with the intermediate arms, which with the window open are located in relation to the side frames of the sash frame identical as the bottom trims. For the dual action window, opened with the tilt function, the embodiment no. 1 to 4 in the scope of the bottom trim description are valid both for top and bottom trims. To illustrate the embodiments, for the window opened with the tilt function, the figures 2 to 9 are provided, relating both to the bottom (as shown) and top trims.