Flexible or portable closure – partition – or panel – With hood – canopy – shield storage chamber – or outrigged... – For roll type
Patent
1987-03-17
1988-03-22
Gibson, Jr., Robert W.
Flexible or portable closure, partition, or panel
With hood, canopy, shield storage chamber, or outrigged...
For roll type
160133, E06B 908
Patent
active
047322012
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The invention relates to a roller blind with an armor comprising lamellae, which may be moved in guiding rails at the side over a deployment length and which can be rolled on or off a take-up roll disposed in a roller-blind housing, the free end of a material or coarse-screen blind, which is rolled up under the tension of a spring on a roll that in turn is accommodated in a blind housing, being fastened to the last lamella at the free end of the armor and the blind housing being disposed below the last lamella of the armor.
UNDERLYING STATE OF THE ART
Roller blinds are used on a large scale as such in new buildings, and as fixtures or mini-roller-blinds and enable window and door openings to be closed partly or completely. Always associated with this, however, is also a corresponding closing off of the area, over which the roller blind is let down. In particular, conventinal roller blinds are practically unsuitable for darkening the interior of the room somewhat relative to the light from the outside, or even for not closing off the area of the window or the doors, but only to prevent entry by insects and the like. The known roller blinds are thus suitable for closing off the area of a window or a door against unauthorized entry from outside, but can fulfill the other functions indicated either not at all or only quite inadequately.
In contrast to this, it is known that suitable protection against the sun, a desired darkening or also some protection against insects can be obtained by the use of material blinds, without at the same time closing off the opening of the window or the door as completely, as is the case with a roller blind. By selecting suitable dyeing, a suitable mesh width of the material or other suitable material parameters, such material blinds can effectively provide a desired dimming or darkening of a room relative to the outside or also a desired protection against insects, but, in turn, are totally unsuitable for closing off a window or a door opening in the sense of a roller blind, so that the unwanted entry from the outside is prevented. The same is true for the known coarse-screen blinds, which find use essentially as protection against insects.
If it is now desired to have, aside from a roller blind, also the possibility of effective protection against insects or sunlight, it is necessary to provide separately and in addition to the conventional roller blind an appropriate, conventional material or coarse-screen blind. Because of local space conditions, such measures frequently are not even possible, but in any case require a considerable structural effort and are moreover, if feasible, associated with not inconsiderable costs. In addition, it has proven to be somewhat complicated normally to operate such combined roller blinds/blinds.
From the German Auslegeschrift 2,934,122, a roller blind of the initially named type is already known, for which a roller-blind housing with a smaller material or coarse-screen blind is disposed below the window opening. The free end of the material or coarse-screen blind, which is rolled up under the tension of a spring in the blind housing, can be coupled by a coupling device to the last lamella of the armor. By these means, when the armor is pulled up, the material or coarse-screen blind is pulled up together with this armor from below at the window opening, so that the window opening, cleared by the armor, can be covered, for example, as protection against mosquitoes. However, with many windows it is not at all possible to mount a blind housing additionally below the window opening, because suitable space is frequently not available for this. With the known roller blinds moreover, the window area cleared by the armor can be only be covered either completely (when the blind is coupled on) or not at all (when the blind is not coupled on) by the material or coarse-screen blind; partial coverage by the material or coarse-screen blind of the window area cleared by the armor, perhaps to shade only a portion of the window area cleared
REFERENCES:
patent: 574959 (1897-01-01), Still
patent: 1181499 (1916-05-01), Zeman
patent: 2072726 (1937-03-01), Yartyan
patent: 2404257 (1946-07-01), Thomas
patent: 2605823 (1952-08-01), Lockhart
patent: 4151871 (1979-05-01), Ryan
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