EP0218580B1

EP0218580B1 - A window construction

Info

Publication number: EP0218580B1
Application number: EP85901989A
Authority: EP
Inventors: Jorgen Skoubo Johansen
Original assignee: Individual
Current assignee: Individual
Priority date: 1984-02-29
Filing date: 1985-03-29
Publication date: 1988-12-28
Also published as: DE3567051D1; DK127484D0; DK127484A; FI864664A0; DK153343B; AU4236285A; EP0218580A1; NO864803D0; SE8605007L; SE8605007D0; DK153343C; WO1986005831A1; NO864803L; FI864664A; SE454789B

Abstract

A window construction comprises a framed glass pane (1), whereby the framing is formed by a sash (2) sealingly abutting the edge zone of one side of the pane, the sash being pressed or pulled against the pane by means of clips or clamp strips (3) gripping over the edges of the pane.

Description

The invention relates to a window construction comprising a main frame or parts of a gap in a wall, which serve as a frame, as well as a framed glass pane capable of closely abutting said frame or parts and being either fixedly mounted so as to be opened, the framing of the pane comprising a corner joined none-supportive sash extending in a plane substantially parallel to and outside the glass pane, as well as clips or interconnected clamp strips of metal forming a substantially U-shaped gripping member and pressed over the edges of the pane, said clips or clamp strips pressing the sash towards the edge zone of one side of the pane continuously along all edges of the pane, whereby a sealing and/or pressure relief, is established at the surface of the pane by inserting a resilient, sealing intermediary layer such as a resilient joint filler or a resilient joint tape between the edge zone of the pane and the sash.
US-A-4 187 657 discloses a window construction of the above type. As a result of the development glass panes have grown still heavier partly because the desires are directed to greater windows and partly-and perhaps mainly-because it is now often a question of windows of several layers of glass with air therebetween, i.e. the so-called insulating panes. The increased weight and thickness of the glass panes involve increased and different requirements to the dimensions, the type, and the profiling of the framing material, which interalia has caused very heavy glass framings.
The window construction according to the invention is characterised in that sash is of insulating material such as wood or plastics and is arranged at that side of the pane which is facing the main frame, the sash thus being capable of abutting said main frame.
The characteristic features of the above framing of the pane are consequently that the sash is retained closely to the edge zone of the pane at the side of the glass pane facing the frame by means of the clips or the clamp strips and further that the sash can form a sealing abutment against the frame. The sash need not absorb forces from the weight of the pane and can thus be rather slender. When the framing of the pane is to be mounted on the pane, the sash is placed on the pane while simultaneously covering the edge zone of one side of the pane, optionally the sealing, resilient intermediary layer being placed between the sash and the pane. Subsequently, the sash is pressed into abutment against the pane by means of the clips or the clamp strips, the U-shaped cross section of the latter being pressed over the edge of the pane so as to grip over the edge of the pane and portions of the sash. As a result, these parts are kept assembled. In order to prevent the clips or the clamp strips from destroying the pane, a sealing resilient intermediary layer may, as mentioned, be inserted between the pane and the clips/the clamp strips. This intermediary layer may for instance be made of plastics or rubber.
In this manner the parts of the framing absorbing the forces from the weight of the pane and optionally transferring said forces to functional fittings are positively positioned either on the cold or the warm side of the abutment of the sash against the frame. As a result, the problems of the cold bridges, if any, are avoided, said cold bridges often arising in connection with attempts to manufacturing pane framings of metal. Furthermore, an almost complete freedom as to production and design is obtained because the sealing abutment between the frame and the sash in principle is independent of the structure of the metal members and of their possible interconnection. By "clip" should be understood a clamp strip or clamp strip-like member, which is short or relatively short.
A simple framing of the pane is according to the invention provided.by producing a sash of wood shaped and dimensioned in such a manner that it can cover 15-20 mm of the edge zone of the pane and may have a circumferential groove parallel to the plane of the pane and formed in the radially outward edge surface of the sash. The sash is placed on the pane, a resilient sealing mass being applied in advance between the sash and the glass. Subsequently, U-profiles are inserted, for instance steel profiles bent of 0.05-1 mm thick steel pliable sheeting, into the circumferential groove of the sash in such a manner that the U-profiles grip over the edge zone of the pane relative to the opposite side of the sash. The -U-profiles are mutually fixed in the corners by means of fittings or through a direct joining by means of rivets or screws. Finally, plastic or rubber strips are inserted between the U-profiles and the glass on the side of the pane opposite the sash. The framing of the pane has thus been completely established. The completion of the above concerns a strengthening or a particularly aesthetic design which, however, is beyond the scope of the present application.
According to a particular embodiment the sash is made of L-shaped PVC-profile, said L-profile being assembled through corner weldings to form the sash. The welding together of the L-profiles is carried out in such a manner that one outer side of the L-profiles abuts the edge zone of the glass pane and the other side faces the centre of the pane. In this manner one leg of the L-profiles extends from the plane of the pane at a short distance from the edges of the pane. As a result, it is possible to form a labyrinthic seal through the cooperation of the glass pane with the frame because abutment can be established both at the end of the projecting profile portion and on the clamp strip facing backwards relative thereto and abutting the leg of the L-profile which abuts the edge zone of the pane. Such an embodiment is particularly suited for inward windows as the mounting of a closing device allowing an outward opening of the window would present problems.
The invention will be described below with reference to the accompanying drawing, in which

Fig. 1 is a sectional view of a portion of a first embodiment of the window according to the invention, the pane framing being particularly simple.
Fig. 2 is a sectional view through another embodiment of the window where the sash is an extruded profile for labyrinthic sealing, and
Fig. 3 is a horizontal sectional view through a portion of a third embodiment of the window, where the sash is secured by screwing onto a profiled body of metal.

Fig. 1 shows how in a particularly simple manner an insulating pane can be framed according to the invention, a sash 2 being mounted against the edge zone of the insulating pane 1. This sash is clamped towards the pane by means of clip or clamp strips 3, the clamp strip gripping into a groove 4 and extending to the opposite side of the edge 5 of the insulating pane, whereby a pressure relieving profile 6 is inserted between the pane and the clamp strip. Furthermore, a resilient sealing 7 is established in the zone between the sash 2 and the glass 1. The frame of the window is indicated through a dotted line 8.
Fig. 2 illustrates in principle the same framing of the pane as Fig. 1, but with the alteration that the stop frame is made of extruded profiled bodies 9 of an L-cross section and for instance made of PVC. These profiled bodies are shaped so as together with the clamp strips 10 extending from corner to corner of the glass pane to form a labyrinthic sealing partly through stops against a frame portion opposite the end 11 of the L partly through sealing against a sealing strip 12 at the clamp strip 10. The cross section of the frame has been indicated through a dotted line 13.
Fig. 3 illustrates a horizontal sectional view through a further framing of a pane provided with clamp strips. The sash 20 is here pressed against the edge zone of the pane by means of screws 15 partly extending into the sash 20 and partly through a web 16 of a metal clamp strip 16. This metal clamp strip extends along and abuts the "opposite" edge zone of the glass pane 17, a rubber relieving member 18 being inserted between the metal strip 16 and the glass pane 17. The frame has been shown with a dotted line 19.

Claims

1. A window construction comprising a main frame (8, 13, 19) or parts of a gap in a wall, which serve as a frame, as well as a frame glass pane (1) capable of closely abutting said frame or parts and being either fixedly mounted or mounted so as to be opened, the framing of the pane comprising a corner joined none-supportive sash (2, 9, 20) extending in a plane substantially parallel to and outside the glass pane, as well as clips or interconnected clamp strips (3, 10, 16) of metal forming a substantially U-shaped gripping member and pressed over the edges of the pane, said clips or clamp strips pressing the sash towards the edge zone of one side of the pane continuously along all edges of the pane, whereby a sealing and/or pressure relief, is established at the surface of the pane by inserting a resilient, sealing intermediary layer (7) such as a resilient joint filler or a resilient joint tape between the edge zone of the pane and the sash, characterised in that sash (2, 9, 20) is of insulating material such as wood or plastics and is arranged at that side of the pane (1) which is facing the main frame (8, 13, 19), the sash thus being capable of abutting said main frame.

2. A window construction as claimed in claim 1, characterised in that the clamp strips (3, 10) are made of bent pliable sheeting.

3. A window construction as claimed in claim 1 or 2, characterised in that the clamp strips (3, 10) extend from corner to corner of the glass pane (1) and are interconnected through corner fittings.

4. A window construction as claimed in claim 1 or 2, characterised in that two parallel clamp strips are provided, and that an outer dimension of the U-shaped cross section of one pair of clamp strips corresponds to an inner dimension of the U-shaped cross section of the second pair of clamp strips in such a manner that the clamp strips of the first pair of clamp strips are insertable in the clamp strips of the second pair of clamp strips adjacent the corners of the window construction and are interlocked by means of screws or rivets drilled through the cooperating four free webs of the clamp strips in each corner.

5. A window construction as claimed in claim 1, characterised in that the screws are mounted in a web (16) of a clamp strip which extends along and abuts the edge zone of the side of the glass pane (1) opposite the sash (20), the head of said screws forming together with the shank of each screw and the said web the U-shaped gripping cross section for pressing the sash (20) inwards towards the edge zone of the glass pane (1), whereby the sash projects slightly radially outside the glass pane (1).

6. A window construction as claimed in one or more of the preceding claims 1-4, characterised in that the sash (2) is provided with a radially outward groove (4) coooperating with the clamp strips (3) or the clips.

7. A window construction as claimed in one or more of the preceding claims 1-6, characterised in that the sash (9) is of a substantially L-shaped cross section.