Static structures (e.g. – buildings) – Window or window sash – sill – mullion – or glazing – U-shaped channel formed of separate strips overlapping pane...
Patent
1998-10-16
2000-11-14
Friedman, Carl D.
Static structures (e.g., buildings)
Window or window sash, sill, mullion, or glazing
U-shaped channel formed of separate strips overlapping pane...
5220469, 52214, 5220462, 494781, E06B 3988
Patent
active
061452564
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
The present invention relates to a thermal-insulation element, in particular for window and door frames and the like.
It is known that in applications such as building window and door frames and at all events--in any other application in which an internal environment is to be insulated from an external one by glass panes, supporting frameworks or glass sashes are used that are provided with thermal-insulation elements.
In more detail, these sashes, be they fixed or movable frameworks, consist of an external half and an internal half between which one or more thermal-insulation elements are operatively interposed which are made of thermally insulating material and arranged to follow the whole perimeter of the supporting framework and engage in corresponding seats formed in said halves.
Practically the thermal-insulation elements of known type usually consist of thermally insulating bars of a substantially rectangular section.
While these thermal-insulation elements are widely used and efficient, they however appear to be susceptible of improvement in particular with reference to applications to window and door frames and the like in which weather strips of the magnetic type are used or strips consisting of a sealing portion incorporating magnetic charges or with which magnetic charges are associated in order to push the sealing portion, during the closing step, towards a counter-pole which is obviously magnetized too.
It is to point out in fact that until now, when this type of weather strip was employed, one was obliged to predominantly resort to the simultaneous use of two of said strips, one of which was in engagement with the fixed framework and the other with the movable framework forming the window or door frames, in order to carry out the desired hermetic seal.
Therefore, while the use of magnetic weather strips ensures a great operating efficiency and reliability over time, as described in the Italian Patent and Utility Model applications no. MI92A00469 and No. 21806B/86 respectively, in the name of the same Applicant, from the point of view of production and installation these strips have highlighted some problems.
In fact, for application of a closing system involving a magnetic weather strip to a building framework, two weather strips need to be associated, as said, which will bring about important installation and operation costs. In addition, common frames for building fixtures are never provided with attachment areas for said strips and do not afford sufficiently wide operating spaces for installation and operation of a pair of magnetic weather strips. In other words, if one wishes to adopt this type of closure, frames suitably planned and sized for receiving this kind of weather strips need to be made.
Therefore, an unresolved technical problem is still represented by the impossibility of conveniently employing magnetic weather strips of the type briefly described above without being obliged to provide relatively wide operating spaces in the sections of the frames with which said weather strips are to be associated, which will bring about, as a result, the impossibility of utilizing supporting frameworks similar to those traditionally available for compression weather strips for example.
Under this situation it is an object of the present invention to solve the above mentioned drawbacks, in particular with reference to door or window frames having a thermal insulation, by providing a thermal-insulation element for window and door frames and the like, as described in the appended claims.
Another object of the invention is to provide a thermal-insulation element which, while being capable of solving the technical problems pointed out above, is in any case of easy and economical manufacture and ready installation, due to its great structural simplicity.
The foregoing and further objects that will become more apparent in the progress of the present description are substantially achieved by a thermal-insulation element, in particular for window and door frames and the like, as defined
REFERENCES:
patent: 5129184 (1992-07-01), Fish
patent: 5461831 (1995-10-01), Michal
patent: 5476318 (1995-12-01), Yingst et al.
patent: 5575485 (1996-11-01), Merla et al.
patent: 5816080 (1998-10-01), Jeriorowski
Caldiroli Alfonso
Cittadini Paolo
Friedman Carl D.
Horton Yvonne M.
Industrie Ilpea S.p.A.
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