ALARM INDICATION OF INSULATED GLASS

Abstract: The invention relates to an arrangement in an insulating window adapted to create a location for an alarm releaser which is fastened preferably on at least one of the surfaces or edges of the glasses in said window or on their spacing profile in a space created by that at least one piece of a glass edge lying enough away from a lower edge of the spacing profile to provide a space for the alarm releaser.

Description: Alarm indication of insulated glass Today different techniques are used to alarm indicate so that alarm can be started when a glass sheet breaks. One usually uses electric conducting circuits, different sensors which register diferent signals or sensors having trans¬ mitters and receivers e.g. those which work with ultra¬ sound. The location of these alarm triggers or releasers on a glass sheet causes big problems when said alarm releasers shall be built together to an isulating window which is built-up of a number of glasses which are glued against an intermediate spacing profile. The location which can be used is either on the inside of the glass within the spacing profile or somewhere else on the outside or the inside of the surface of the glass which is connected to the spacing profile or its direct neighbourhood. Is the alarm releaser placed inside within the spacing profile it will be visible, which is not always desirable, since a thief in this case can see it and manipulate it in trying to start wrong or false alarm or to provide a default alarm during attack. Furthermore difficulties will occur to draw cables to the alarm releaser, since one has to draw the cable through the spacing profile or between glass and the spacing profile. In this case sealing problems will arise in the insulating window which makes that moisture can penetrate at the place of the cable lead-through. In order to make the alarm releaser invisible one has tried to locate the same on the outside below the upper edge of the spacing profile so it can be hidden by a surrounding fold of a window frame. In this case moisture problems also occur, since moisture can be present in a window fold, so that the alarm releaser is influenced whereby default alarm is started or in such a way that the alarm stops to func¬ tion. Furthermore the alarm releaser takes up a lot of space at the sealing strip of the fold against the insulated glass, which can create earth fault and sealing problems to¬ wards the room. Risk that the alarm releaser shall be dam- aged by mechanical damage during transport and mounting then also will be great. Instead in trying to eliminate some of the problems mention¬ ed one has tried to locate the alarm releaser on the inside of the glass near to the spacing profile, which is the most moisture sensitive area of the insulating window, since the glass is here glued against the spacing profile. In this case tightening problems around the cables and the alarm releaser will arise. Water and water vapour can pierce into the air space of the insulating window and create condense. Also in this case false alarm can be started owing to earth fault, when the alarm releaser is too close the edge of the isolated glass and because there is a moisture capillary suction of the surrounding of the cables. In the above mentioned connections of a cable to the alarm releaser the cable lies unprotected and mostly only is fast¬ ened in the soldering directly in the alarm releaser, which often leads to that a break occurs on the same. The object with the present invention is to eliminate the problems mentioned above and provide a suitable space for placing the alarm releaser. Thanks to the invention one has now provided a soulution which in an excellent way fulfils its purposes in the same time as it is both easy and cheep to manufacture. The characterizing features of the invention are stated in the following claims. The invention shall be described closer below by aid of some preferred embodiment examples with reference to the drawing enclosed, in which Fig. 1 shows a partial section of an insulating window having an alarm releaser according a first em¬ bodiment example of the invention, Fig. 2 shows a partial side view of an insulating window according a second embodiment example of the invention, Fig. 3 shows a partial side section of an insulating window having an alarm releaser according to a third embodiment example of the invention, Fig. 4 shows in a side view of a corner of an insula¬ ting window having an alarm releaser according to a fourth embodiment example of the invention, Fig. 5 shows in a side view a part of an insulating window having an alarm releaser according to a fifth embodiment example of the invention, Fig. 6 shows in section a part of an insulating window having an alarm releaser according to still an¬ other embodiment example of the invention and Fig. 7 shows in section a part of an insulating window having an alarm releaser according to a final embodiment example of the invention. As can be seen from Fig. 1-7 a space 5 is obtained for an alarm releaser 4,8,9,19,20, which consists of preferable an electrical conducting circuit or at least one sensor for e.g. ultra sound 9 or another alarm trigger or releaser e.g. a vibration sensor 4,8,9,19,20. By creating this space 5, mainly outside a spacing profile 3 of an insulating window 1, between or on at least one of glasses 2 of said insulat¬ ing window 1, a better milieu for an alarm releaser 4 can be created, where it is better protected against moisture, ob¬ servation and attack and which means that the risk for false alarms, bridging and earth faults and other manipulations in great extent decreases. Besides the alarm releaser is located in a hidden way, so that it is not visible from outside. The risk for mechanical damage of the alarm releaser 4,8,9,19^20 during handling of the insulated glass 4 also decreases. If needed it will also be easier to pro¬ vide a surrounding or cover of the cable in a compound 21 along its first extension 14 away from the connection to the alarm releaser 4,8,9,19,20. This means that it will become more robust than the solutions of today. One also avoids to make a drawing of the cable 6 through the spacing profile 3, which has to be done if the alarm releaser is placed in the hermetically closed space 15 of the insulating window. Should the alarm releaser 4,8,9,19,20 be m contact with the connecting point 12 great sealing problems will also arise. in Fig. l a section is illustrated through an insulating window l and the same insulating window l is also illustrated in a side view. A space 5 is created by that at least one part or a whole length of a lower edge 16 of the spacing profile 3 is along a short side of an insulating window l retracted m relation to at least one of the glass edges 11 of the glass sheet 2 of the insulating window l. in this space 5 the alarm releaser 4 can be protected by the surrounding compound, so that all drawbacks mentioned above are eliminated. The spacing profile 3 does not need to be treated in order to create the space, since it is moved along the whole length of the space b. In Fig. 2 a space 5 is illustrated, which has been createα by that the spacing profile 3 extends m a formation 13 of optional appearance having curved, straight or inclined corners along a length adapted to give place for the alarm releaser 4. The space will have a suitable dimension m a direction outwards to the glass edge 11 from the lower edge 1 6 of a spacing profile 3. Today used bending technique for spacing profiles can be used here in order to create the formation 13. In Fig. 3 a space 5 is illustrated which has been created by that the spacing profile 3 has been pressed together, stamped out, milled out or cut out in creating of an optional appearance of the formation 13 having curved, straight or inclined corners along a distance adapted to give place for the alarm releaser 4. The space 5 will have a dimension enough m a direction outwards to the glass edge 11 from the lower edge 16 of the spacing profile 3. This technique gives the result in that an upper side 7 of the spacing pro f ile 3 is turned towards the hermetically closed space 15 of the insulating window 1, whereby this part of ς the spacing profile 3 will be thinner, but can still give place for a sealing material 17. In Fig. 4 a space 5 is illustrated which has been created by that the spacing profile 3 extends in a formation 13 of preferable a curvature 10. Other formations are of course also usable to give place for the alarm releaser 4. The space will have a suitable dimension in a direction outwards to the glass edge 11 from the lower edge 16 of a spacing profile 3 since the alarm releaser 4 in this case is located in a corner. In Fig. 5 an alarm releaser 8,9 including at least two parts is illustrated.These can be located a long distance 18 from each other, why a bigger space 5 can be required. It is in this case necessary to use the solution that a whole or a longer part of a side of an isulating window l is used to create the space 5. Other solutions can also be used namely one or some of the spaces 5 illustrated in Fig. 1-5 or combinations of these, in order to provide a suitable location for alarm releasers. In Fig. 6 is illustrated that also the spacing profile 3 can be used to fasten an alarm releaser on. Fig. 7 illustrates that an alarm releaser 20 also can be fasten on the glass edge 11. Of course it is also possible to think that the glass edge 11 is curved outwards in a formation from the lower edge 16 of the spacing profile 3, where the spacing profile 3 runs near the glass edge 11 and thereafter is turned outwards to create place for an alarm releaser 4,8,9. To use the invention it is also possible to think that only one glass 2 is used to create a space 5. If sealing compound 21 is used, it does not need to cover the whole space from glass to glass, but only cover partly. Then it is neither necessary that more than one glass 2 protrudes and creates said space 5. I t is also possible to think all optional combinations of the spaces 5 described above in order to give place for alarm releasers 4,8,9.

Claims: Claims 1. An arrangement in an insulating window (l) adapted to create a location for an alarm releaser (4,8,9,19,20), characterized in that said alarm releaser is fastened preferable on at least one of the surfaces or edges (11) of the glasses (2) in the window or on their spacing profile (3) in a space (5) created by that at least one piece of a glass edge (11) lying an enough long distance away fron a lower edge (16) of the spacing profile (3) to create a space (5) for the alarm releaser (4,8,9,19,20). 2. An arrangement according to calim 1. characterized in that the alarm releaser (4,8,9,19,20) is fastened on a glass surface. 3. An arrangement according to claim 1, characterized in that the alarm releaser (4,8,9,19,20) is located between at least two glasses (2) . 4. An arrangement according to claim l, characterized in that the alarm releaser (4,8,9,19,20) is fastened on at least one surface of said glasses. 5. An arrangement according to claim 1, characterized in that the alarm releaser (4,8,9,19,20) is covered by a protecting material. 6. Anarrangement according to claim l, characterized in that the spacing profile (3) is placed so that the space (5) is created without that the spacing profile (3) has a formation (13) or is treated to create a lower edge (7). 7. An arrangement according to claim l, characterized in that the spacing profile (3) is placed so that the space (5) is created by that the spacing profile (3) is treated to create a lower edge (7) .

Inventors: ERIKSSON LARS, ERIKSSON, LARS
Applicants: ERIKSSON LARS, ERIKSSON, LARS
Application year: 1997
Main classification: G08B13
IPC codes: G08B13