Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Diverse types
Patent
1996-06-17
1998-07-21
Johnson, Blair
Flexible or portable closure, partition, or panel
Plural and/or with rigid closure
Diverse types
160107, E06B 332
Patent
active
057822816
DESCRIPTION:
BRIEF SUMMARY
The invention relates to an openable window with a main frame and a sash top-hinged therein, in which sash is mounted a light screen, particularly a Venetian blind, with an adjusting mechanism, as well as with a screening device, preferably an insect screen adapted to be detachably mounted in the main frame internally of the sash and a turning handle mounted at the internal side of the screening device, which turning handle via a shaft is connected with the light screen adjusting mechanism in a rotationally locked manner.
From DK-A-92/00215 a spring-biased lifting system for operation of an external sunscreen for a window is known, in which an external part of a spring-biased drawbar, which is linked with an internally arranged operation turning handle, only in the closed position of the sash may be brought into engagement with a transmission device for a sunscreen which is arranged in an external housing.
From EP-A-0319 601 it is further known to operate a rolling shutter arranged externally on the wall in front of a top-hinged window by means of an internally arranged operation turning handle via a transmission comprising a conical gear at the end of the rolling bar for the shutter in engagement with the conical tooting on a bevel gear at the end of a rotatable shaft connected with the turning handle through two universal joints- This transmission which is arranged entirely outside the window sash comprises between the two universal joints an intermediate member firmly connected with a ball which for compensation of tolerances is journalled to be partly rotatable in a bearing in an internally positioned part of an end wall of the shutter housing. Thereby and through the telescopic design of the rotatable shaft the transmission may be used in the same design for different dimensions of the rolling shutter housing.
Due to the firm arrangement of the rolling shutter on the wall neither this known construction is intended to allow operation of the rolling shutter in an opened position of the window.
It is moreover not suggested in connection with any of these prior art external sunscreens to make use of an internal insect screen.
From DK-B-155 228 is known a window having a Venetian blind with an adjusting mechanism comprising a turning handle and further having an insect screen adapted to be mounted internally of the Venetian blind. In order to give access to the adjusting mechanism when the insect screen is mounted, the screen has been provided with a further turning handle carrying a flexible shaft which when mounting the insect screen is connected with the turning handle of the adjusting mechanism, and the required inclination of the Venetian blind slats can then be adjusted by turning the additional turning handle. This structure allows adjustment of the Venetian blind, also when the window sash is open, but requires operation of two different turning handles, depending on whether the insect screen is mounted or not. The two turning handles make the manufacture and maintenance of the window more expensive. Furthermore, mounting or demounting of the insect screen will be more difficult in the case where the adjusting mechanism is activated via a rod which thus has to be remounted from one turning handle to the other. Moreover, requirements are made to the screen material and the sash because the forces produced by the operation are transferred thereto.
Therefore, the object of the invention is to eliminate above mentioned drawbacks by procuring an openable window of the above referenced type where the light screen is adjusted by the one and same accessible turning handle whether the screening is mounted or not.
Consequently, the window according to the invention is characterized in that said shaft is articulated with the light screen adjusting mechanism and is axially displaceable in a bore in a pivotable member which is journalled in a bearing device connected with the main frame in such a way as to permit said shaft to pivot around an axis of rotation parallel to the hinge axis of the window sash.
The
REFERENCES:
patent: 2176683 (1939-10-01), Peremi et al.
patent: 2281071 (1942-04-01), Knudsen
patent: 2311300 (1943-02-01), Dubour et al.
patent: 3366159 (1968-01-01), Arnold et al.
patent: 4913213 (1990-04-01), Schnelker
patent: 5497820 (1996-03-01), Drake, III
Johnson Blair
V. Kann Rasmussen Industri A/S
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