Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Diverse types
Patent
1996-06-20
1997-12-09
Purol, David M.
Flexible or portable closure, partition, or panel
Plural and/or with rigid closure
Diverse types
160 8404, A47H 100
Patent
active
056949960
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a screening arrangement for a window with a frame-shaped main frame designed for fixed installation in a roof or wall opening and a glass-carrying frame journalled in the main frame, which frame from a closed position, in which the frame is in a plane parallel to that of the main frame, can be moved to a ventilating position, in which the frame plane forms an angle with the main frame plane, so that at least one wedge-shaped ventilation aperture is formed between the main frame and the frame, said screening arrangement comprising an air-permeable insect screen, which in a mounted position comprises three wall-like sections for screening the rectangular and the two triangular side faces, respectively, of the wedge-shaped ventilation aperture, each section of the insect screen being folded into a bellows surface having an outer and an inner end fold, the inner end fold being connected with the corresponding main frame member and the outer end fold being carried by a frame connected to the main frame by hinges. From AU-B-527915 and DE-A-26 22 170 it is known to provide a top-hung window with an insect screening, which in the open position of the window covers the lateral faces of the wedge-shaped ventilation aperture and which in the closed position of the window is accommodated in a cavity between the main frame and the frame. As the entire frame turns outwards when opening the window, the ventilation aperture may be covered by a single insect screen.
In case of pivoting windows, in which the glass-carrying frame is journalled in the main frame at its central axis, such a construction cannot be applied, as one half of the frame turns outwards, as in the before mentioned case, whereas the other half turns inwards when opening the window.
Instead, it is suggested to use inside insect screenings, which for instance are placed some way into the embrasure. Such a solution is simple and inexpensive but will generally impede access to the operating handle of the window, so that the window cannot be opened without wholly or partly removing the screening. In addition to the more difficult operation of the window, there is also the risk that insects will enter the room during the time elapsing from the window is opened until The screening has been mounted or vice versa.
Furthermore, it has been suggested in U.S. Pat. No. 2,311,413 to use two sets of insect screens in case of pivoting windows, each set being mounted between the frame and the main frame and each covering one of the two wedge-shaped ventilation apertures. The arrangement illustrated in this may screen the window during the entire opening process, but in connection with the mounting it requires relatively large interventions in the main frame and/or the frame.
From DE-A-40 26 236 a window is known in which a fixed screening is mounted on the inside of the window without any connection to the moveable window frame. The screen is thus always folded out and projects into the room. Both in case of top-hung and pivoting windows, it is desirable to be able to produce the main frame and the frame in the same way, whether or not the window is to be sold with an insect screen. The main frame and the frame should also have as high a strength as possible for obtaining a fixed outer dimension, which makes it desirable to avoid an inner cavity between the main frame and the frame.
SUMMARY OF THE INVENTION
The object of the invention is therefore to provide a screening arrangement which offers adequate security against entry of insects and which can be mounted on the main frame and the frame by quite insignificant interventions, which do not require preparation of cavities etc. in places in which the weatherproofing of the window is situated. Furthermore, it is an object to provide an arrangement which in a simple way can be mounted on already built-in, old windows.
In this respect, the screening arrangement in accordance with the invention is characterized in that the screen-carrying frame is a separate frame fo
REFERENCES:
patent: 1022870 (1912-04-01), Power
patent: 1211053 (1917-01-01), Bernard
patent: 2261941 (1941-11-01), Persson
patent: 2270202 (1942-01-01), Persson
patent: 2311413 (1943-02-01), Persson
patent: 5179988 (1993-01-01), Vorsmann
M.o slashed.ller Brent
Vigenberg Stig Flemming
Purol David M.
V. Kann Rasmussen Industri A/S
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