Flexible or portable closure – partition – or panel – Roll type – With guides or fabric edge holders
Patent
1998-03-04
2000-07-25
Stodola, Daniel P.
Flexible or portable closure, partition, or panel
Roll type
With guides or fabric edge holders
160266, A47H 300
Patent
active
060925817
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a roller blind for windows, doors and other similar closure means particularly in buildings.
BACKGROUND OF THE INVENTION
Different types of devices, which can be opened, are used as protection from view, for screening of sun rays and, sometimes, as reinforced burglary protection. Apart from the main type windows or doorshutters, there is another main type where screening devices are pulled or rolled down in front of the opening in the window or door, respectively, and which distinguishes itself from curtains and drapes by being, in general, of a stronger material than textile and arranged with a more technically emphasised closing mechanism. Such devices are generally called Venetian blinds or roller blinds, which last designation will be used here.
Many types of roller blinds have the only task of functioning as protection from view and sunscreens, and do not need to be of any more robust construction. Certain types, on the other hand, are intended to also function as reinforced burglary protection or, for some types, only as such. As an example, ribbed blinds can be mentioned, which are generally found in areas with a strong solar radiation and which, because the closure device is made of wood or steel ribs running in rails, cause a certain amount of hindrance during an attempted burglary. They do, however, form heavy and relatively bulky structures and require relatively large adaptations of the building construction for their installation. Another increasingly common type is represented by grid constructions, which can be pulled or rolled in front of the opening in a building. They are mainly used in public environments, such as for shop windows, entrances to shops or institutions, for subways etc. These constructions are relatively bulky too and are also expensive to manufacture because they consist of a great number of parts which have to be attached to each other in a flexible manner.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a roller blind which can be used as protection from view and as a sunscreen and which, at the same time, is resistant to penetration and which can be adequately locked. At the same time, the object is to provide a roller blind which requires such small space that it can be installed on the inside of windows and doors without any significant adaptation of the building construction and which can also be hidden under a conventional curtain arrangement when in the opened state. The goal is also that it shall have such a design that it can be manufactured at such low cost that it can also be used in private settings where the cost factor is of greater importance than in a business context.
The previous account of the state of the art and the resulting products available show that no product exists which has a considerably enhanced resistance to burglary whilst still being suitable for installation in ordinary homes. The previous availability of devices having an enhanced resistance to burglary has been aimed totally, on one hand, towards the first-mentioned, which are installed and taken into account during the construction of the building, and, on the other hand, towards such intended for protection of public environments. None of these types is suitable for subsequent installation after construction in ordinary dwellings. On the other hand, there is a rising need of protection and burglary protection for dwelling s because of the increasing criminality and the ever more serious acts of violence.
The various objects of the invention are achieved by a simple and scarcely bulky but still resistant closure device together with an effective locking arrangement therefor in a closed position. The locking arrangement is adapted to secure the device along three edges whilst the device co-operates with its closure means along the fourth edge.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be described in the following by means of two variations of one embodiment. Reference is made to the accomp
REFERENCES:
patent: 1370324 (1921-03-01), Lafuente
patent: 3516470 (1970-06-01), Kurz
AnSa Protection AB
Lev Bruce A.
Stodola Daniel P.
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