BACKGROUND ART It is probably no exaggeration to say that windows used today are often clumsy, expensive and complicated to manufacture. The wooden frame surrounding the outer edge of the glass pane has increased in breadth over the last decades. What is known as coupled double glazing, which gives a slender construction, often cannot be used for reasons of thermal insulation. Most windows being manufactured nowadays are of insulating glass. Insulating glass panes are heavy, resulting in large, clumsy window-frames and attachment frames, in order to achieve a mechanically sturdy construction.

DESCRIPTION OF THE INVENTION A window with associated attachment frame in accordance with the invention is so designed that the hinge between the window and the frame comprises hinge parts that are firmly adhered to the upper and lower edge portions of the glass pane, and also hinge parts that are attached to corresponding parts of the upper and lower horizontal parts of the frame.

Such a construction gives : more light, i. e. a greater percentage of glass in the outer measurements of the frame ; simpler window construction, fewer parts ; simpler manufacture than previously (by the use of rational manufacturing methods) ; and a slender, modern appearance in line with current demands for windows and manufacturing methods.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be described in more detail with reference to the accompanying schematic drawings in which Figure 1 shows a window, attachment frame and hinge in accordance with the invention, Figure 2 shows an enlargement of one corner of the window/attachment frame in Figure 1, Figure 3 shows the hinge part to be adhered to the pane, Figure 4 shows the hinge part to be secured to the attachment frame, Figure 5 shows a bolt to hold the associated hinge parts movably together, Figure 6 shows a modified hinge part for securing to the attachment frame, and Figure 7 shows a modified hinge part for adhesion to the pane.

DESCRIPTION OF PREFERRED EMBODIMENT To obtain good bearing strength and simple assembly strong hinges are used which, instead of being placed on the side of a window as is usual, are placed in the lower and upper edge of the window. The geometry of the hinges is such that contact between existing washers between glass and frame will be"self-closing". A large Teflon washer is used in order to reduce friction between the hinge parts.

The pane is surrounded by a wooden frame of optional sort to protect it from chipping and to prevent shearing between the panes in multi-glazing windows. This construction also eliminates thermal bridges.

Figure 1 shows a window 10 and attachment frame 11. The hinge 13 between the window 10 and frame 11 comprises hinge parts 131,132 that are firmly adhered to the upper 101 and lower 102 horizontal edge portions of the glass pane, and also hinge parts 135,136 that are attached to corresponding parts of the upper 111 and lower 112 horizontal parts of the frame 11. The hinge parts are suitably made of aluminium.

The above is a description of the right-hand part 10 of a composite window which has an equivalent left-hand part 10'with hinge parts 133, 134 adhered to the upper 103 and lower 104 horizontal edge portions of the pane, and hinge parts 137, 138 attached to corresponding parts of the upper 111 and lower 112 edge portions of the frame 11.

The hinge parts 131-134 are adhered to the pane, preferably using an MS polymer adhesive of S55 type. The adhesive is adjusted to give a suitable coefficient of expansion and a Shore number of around D 40-50. The pressure required during adhesion is suitably about 20 gram/cm2.

Figure 2 shows an enlargement of the right-hand corner of the window in Figure 1 with the frame 11, the hinge part 136 attached in the lower edge 112 of the frame 11, the hinge part 132 adhered to the lower edge 102 of the pane, and a cantlist 20 to protect the edge of the glass.

Figure 3 shows the hinge part 132 for adhesion to the lower edge portion 102 of the pane 10. The part 132 has a through-hole 30 for a hinge bolt 50, see Figure 5.

Figure 4 shows the hinge part 136 for attachment to the lower edge portion 112 of the frame 10. The part 136 has a through-hole 40 for the bolt 50 and two through-holes 41 and 42 for two attachment screws.

A Teflon washer (not shown) with a hole corresponding to the holes 30,40 shall be located between the hinge parts 132,136.

Figure 5 shows the bolt 50 for the holes 30 and 40 in the hinge parts 132 and 136.

The hinge part shown in Figure 6 differs from that in Figure 4 primarily in that it has an upwardly protruding pin 61 designed to fit into a partially open notch 71 in the corresponding (cooperating) hinge part according to Figure 7. The object is to prevent the glass pane from being lifted out

should anyone manage to remove the bolts holding the hinge parts together, two and two (protection against break-in).

The hinge part shown in Figure 7 that is to be adhered to the glass pane differs from that in Figure 3 in that, as already mentioned, it has the notch 71 open to the side; a hole 70 for a retaining bolt is oval, thus enabling subsequent adjustment of cooperating hinge parts in relation to each other with the aid of an adjusting screw through a transverse hole 72 at right angles to the bolt hole 70; it has several transverse holes 73-75-77 along the longitudinal direction of the hinge part, to provide increased adhesion effect to the glass pane; and at the end furthest from the bolt hole 70 is a hole 79 for a window stay when the window is to be left open.

The examples above refer to windows pivotable about vertical axes.

Naturally an equivalent design principle is also applicable to windows pivotable about horizontal axes.