WO2008076032A1

WO2008076032A1 - Insulating pane containing a blind

Info

Publication number: WO2008076032A1
Application number: PCT/SE2007/000840
Authority: WO
Inventors: Ragnar Winberg
Original assignee: Ragnar Winberg
Priority date: 2006-12-21
Filing date: 2007-09-26
Publication date: 2008-06-26
Also published as: EP2092151A1; SE529508C2; SE0602766L

Abstract

Insulating pane of the kind which has at least two rectangular parallel panes not removably attached to each other, where one outer pane (2, 15, 30) is shorter at the top than the other outer pane (1, 14, 29), where above the shorter outer pane there is a horizontal tube (39) on which there is a blind (40), which can be rolled up, where the tube is partly situated outside the outer side of the shorter pane and where an airtight hood (11, 27, 35) containing the tube is attached outside the shorter outer pane.

Description

Insulating pane containing a blind

Several decades ago windows were often of the kind where the panes were mounted in coupled casements. The visible panes themselves were usually 100 - 120 centimetres high while the width was usually somewhat less. An outer pane was mounted in a wooden frame and an inner pane was mounted in another wooden frame and these two frames were joined with hinges in one of their sides and in their opposite sides removably fixed. The window joined by the two wooden frames with panes was fixed with hinges in a solid window-frame. The distance between the panes could be about 4 centimetres. There was often a Venetian blind mounted at the top between the panes. The blind could be moved down and slanted in a well- known way. At careful cleaning the window was opened and the two panes were separated to make it possible to clean their insides. Coupled casements could also be mounted horizontally so that they could be turned so that the outside of the window and the two insides came inwards and would be cleaned from inside the home.

To decrease the heating costs insulating panes with two or three panes have been used since long. The distance between these panes is usually 9 - 15 millimetres. They are hermetically sealed and contain air or a gas, for instance argon or krypton. These insulating panes can be directly fixed to a frame. If they are to be opened they are mounted to be turned in the well-known way in the window-frame.

Having a big distance in an insulating pane between the panes does not improve the heating resistance. It would make the windows heavier and more expensive and more fragile to great variations in pressure in the atmosphere.

The distance between the panes in insulating pane is too small for Venetian, blinds. Those who have insulating panes in their homes must, if they want to have Venetian blinds, have them inside the inner glass surface. This means disadvantages. The blind will be exposed to dust and it is extensive work to clean all its blades, as well as there are often flowerpots on a windowsill preventing the Venetian blind to reach its lower part. Instead of a Venetian blind those who wish can use a blind. Also here flowerpots vill be in the way. It is not possible to get place for a blind in today's insulating panes, where the distance between the panes is small.

The purpose of the present invention is to make it possible to use a blind together with insulating panes without the blind being inside the innermost pane and in the way of flowerpots.

The invention has the special characteristics as will be seen from the patent claims.

The invention will be further explained by figures where examples are shown.

Figure 1 shows an insulating pane with two panes before it has been entirely put together.

Figure 2 shows the insulating pane according to Figure 1 seen towards one side edge.

Figure 3 shows the insulating pane according to Figure 1 seen towards the upper edge.

Figures 4 - 6 show the insulating pane according to Figure 1 entirely put together.

Figure 7 shows an insulating pane with three panes before it has been entirely put together.

Figure 8 shows the insulating pane according to Figure 7 seen towards one side edge.

Figure 9 shows the insulating pane according to Figure 7 seen towards the upper edge.

Figures 10 - 12 show the insulating pane according to Figure 7 entirely put together.

Figures 13 and 14 show on a large scale and in intersection parts of the upper side of the insulating pane according to Figures 4 and 5.

In Figures 1 - 6 the outer pane of the insulating pane is denoted with 1 and its inner pane with 2. The inner pane with its upper edge 3 is shorter at the top than the outer pane. 4, 5, 6 and 7 denote glass rods with square cross sections. They have been glued to the panes. Instead of glue, tape adhesive on both sides can be used. The panes can be 4 millimetres thick and the distance between them 12 millimetres. Some limiting lines behind are shown broken on the figures despite the fact that they are quite visible through glass.

In Figures 4 - 6 little pieces of glass glued to the glass rods 5 and 7 are denoted with 8 and 9. A long piece of glass 10 is glued to the glass rod 6. A hood of stainless steel is denoted with 11. It has a projecting flange 12. The hood is permanently glued to the pieces of glass 9, 10 and 11 and to the inner glass 2. The hood contains a blind. More about that later. A box is denoted 13. It contains a battery and a manually reconnectible switch for the blind. The electric wiring is not shown since it is irrelevant for the invention. In Figures 7 - 12 an outer pane is denoted with 14, an inner pane with 15 and a thinner intermediate pane with 16. Glass rods with a square cross-section in the left side of the pane are denoted with 17 and 18 and in the upper side of the pane with 19 and 20. Short thin pieces of glass in the upper part of the pane are denoted with

21, 22, 23 and 24 and long thin pieces of glass at the top of the pane with 25 and 26. All the pieces of glass are permanently glued against each other. The pieces of glass

22, 26 and 24 and the outside of the inner pane are on the same level. It is clearly evident that the panes 15 and 16 at the top are shorter than the outer pane 14. A hood with its flange 28 is denoted with 27. It is glued on the panes.

In Figures 13 and 14 an outer pane is denoted with 29 and an inner pane with 30. They are kept together by glass ledges with a square cross section. Three of them are visible and denoted with 31, 32 and 33. In Figure 14 an intermediary part 34 can be seen, which has been permanently glued on the outside of the inner pane and other pieces of glass, 31, 32 and 33 glued on it on the same level. The intermediary part can be of stainless metal and provided with many threaded holes. A hood 35, with its flange 36 is screwed 37 in the intermediary part. There is a thin packing 38 between the flange of the hood and the intermediary part. 39 denotes a thin- walled aluminium tube on which a blind 40 has been rolled. In the free edge of the blind there is a metal rod 41. An electric motor with a gear is denoted with 42 and is screwed with an intermediary part 43 on the gable of the hood. On the motor there is a bearing 44 on which the tube is mounted. By a coupling 45 the tube can be made to rotate. The tube in its other end has been mounted in a part which is screwed in the left gable of the hood. In the tube there is attached an axis 47 with which the tube here is carried in bearings. This axis is threaded and on its threaded part there is a nut 48 which is guided on the sides so that it cannot turn but at the rotation of the tube moves axially. The nut can act upon two micro- switches 49 and 50, which mark the end positions of the blind. A ledge 51 is glued to the inside of the outer pane where the intention is that the blind shall be at a distance from the glass. The electric wiring is not shown since it is irrelevant for the invention.

By pulling down the blind thermal insulation increases and a double glazing then functions principally as a triple-glazed window. If the insulating pane is not her metically sealed gas will flow in and out because the atmospheric pressure changes just as the temperature changes. If the space between is filled with an inert gas it will gradually be more and more mixed with air. Also water vapour can come in if the surrounding air is not dry.

The insulating pane is meant to be put directly in a window-frame if the window is not to be opened. If it is to be opened it ought to be put in a window-frame in the same way as earlier known insulating panes. On the figures the hood is turned toward the room, but it is possible to let it be on the outside of the pane. The manoeuvring shall of course always be on the inside of the pane. If the hood and the manoeuvring unit are on the same side of the pane the electric wiring will be easier. When the hood is on the inside of the pane it can, if it is removable, be taken off without removing the pane from its window-frame. Instead of rods and pieces of glass to keep the panes at a distance from each other, for instance stainless square tubes can be used. They can be filled with damp absorbing material and have openings inward. It is essential for the invention that the insulating pane takes little place in the window frame. It can then be put in existing frames. This would not be the case if the distance between the outer and the inner pane was to hold a blind. If the distance between the panes is big such an insulating window would be more sensible to variations in pressure.

It is evident that instead of ordinary panes, transparent plastic of for instance acrylic can be used. The hood can be attached with silicone which can be cut up and after for instance a change of blinds be attached again with silicone. Instead of one blind there can be two blinds under the same hood. One blind can be a sun shield and let through a limited amount of light while the other blind lets through less light. Both blinds can be pulled down at the same time.

Instead of pulling the blinds up and down by a motor, they can be manoeuvred by hand through a blind axis via a tightening going out through one gable of the hood. Outside here there can be a cord wheel with a nylon line rolled up which is rolled off the cord wheel when the blind is pulled down. In the usual way the tube with the blind can contain a coil spring for the pulling up of the blind.

The wheel outside the gable can have a smaller diameter than the tube with the blind. It can be a positive drive belt wheel which is made to rotate by a long drive belt hanging down. The wheel can alternatively be shaped to be rotated in a well- known way by a long hanging chain of pearls.

If the centre of the tube is situated at a smaller distance outside the outside of the short pane than half the outer diameter of the wheel with the mounted draw-gear in the shape of for instance a drive belt or pearl chain, it can be necessary to design the hood so that there is space for the wheel inside the outer side of the short pane.

It can be arranged that, on the wheel which is rotated by a string of pearls there is fixed a gear wheel which is in mesh with a similar gear wheel which is fixed in the blind tube outside the gable of the cover. The wheel with the string of pearls can then have its shaft far inside the outer side of the inner pane which can facilitate the manoeuvring of the string of pearls.

In the cases when the outer edges of the blind do not reach near the inner edges an opaque piece of tape can be attached close to these inner edges. As to thermo-panes with three panes the third pane can alternatively be outside the pane 1 on Figures 1-3.

Claims

1 Insulating window of the kind which has at least two rectangular parallel panes not removably fastened to each other, characterized by the fact that one outer pane (2, 15, 30) at the top is shorter than the other outer pane (1, 14 , 29), that above the shorter outer pane there is a horizontal tube (39) on which there is a blind which can be rolled up (40), that the tube with the rolled-up blind is wholly or partially situated outside the outer side of the shorter pane and that an airtight hood (11, 27, 35) containing the tube is attached outside the shorter outer pane.

2 Insulating window according to claim 1, characterized by the fact that the hood is permanently glued to the rest of the insulating window.

3 Insulating window according to claim 1, characterized by the fact that an intermediate part (34) is permanently glued to the pane and that this intermediate part contains threaded holes in which the hood can be screwed up.

4 Insulating window according to claim 1, aracterized by the fact that a motor (42) is enclosed in the tube.

5 Insulating window according to claim 1, characterized by the fact that micro-switches (49, 50), for the control of the blind are contained in the tube

6 Insulating window according to claim 1, haracterized by the fact that when the insulating window contains three panes, the tube is above the intermediate pane (16).

7 Insulating window according to claim 1, characterized by the fact that there is a box (13) containing a battery and a change -over switch attached on the inside of the inner pane.

8 Insulating window according to claim 1, characterized by the fact that from the tube (39) there is an axis which goes through the gable of the hood, that outside the gable on the axis there is a wheel on which there is a line which can be rolled up, for the pulling down of the blind and that the tube contains a coiled spring for the rolling of the blind.

9 Insulating window according to claim 1, characterized by the fact that from the tube (39) there is an axis which goes through the gable of the hood and that outside the gable on the axis there is a wheel on which there is a hanging endless strap or a chain for the rotation of the wheel.

Insulating window according to claim 8 or 9, characterized by the fact that the hood is so designed that the wheel can partly be situated inside the other side of the shorter pane.