Flexible or portable closure – partition – or panel – Pleating type – With slide guides
Patent
1994-03-29
1995-10-24
Purol, David M.
Flexible or portable closure, partition, or panel
Pleating type
With slide guides
1603491, 1601781, E06B 394
Patent
active
054602157
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a window covering. More particularly, the invention relates to a window covering mounted in a window recess and including spaced apart beams with one or more cord members tensioned therebetween for supporting and guiding a covering panel.
2. Background of the Invention
Window coverings can take different forms. A window covering can for instance be a pleated material or horizontally extending lamellar material. Such coverings are conventionally held in the plane between spaced rigid beams by one or more tensioning cords so that the covering also remains tautly suspended. Such coverings are useful in slanting windows such as skylights. Because of the tension on the tensioning cords it is difficult to remove the window covering in order, for example, to clean a glass window mounted in the window frame. See U.S. Pat. No. 4,733,711 issued Mar. 29, 1988, to S. Schon for "Folding Blind, Composite Folding Blind and Coupling Strip Therefore."
OBJECTS OF THE INVENTION
The principal object of the present invention is to provide an improved tensioned cord mounted window covering assembly which is easily released for removal from a window recess in which it is mounted and also rapidly inserted and mounted in the window recess with the cords reset to the correct tension.
Another object of the present invention is to provide an improved releasable mounting mechanism for tensioned cord mounted window covering assemblies.
SUMMARY OF THE INVENTION
A preferred embodiment of the invention is embodied in a tensioning and mounting device formed by an eccentric lever mechanism arranged on each end of one of the beams for tensioning the cords.
According to one embodiment of the invention, the tensioning and mounting eccentric lever mechanism is assembled on an auxiliary beam which is fixed to a main beam supporting the tensioning cords. At least one end face of the auxiliary beam is provided with a rotatable lever arm engagable with a bracket mounted in the window recess. After mounting the beam or beams on the other end of the window covering in the window recess, with or without the same eccentric mechanism, the auxiliary beam and therewith the main beam for tensioning can be secured in place at the correct tension cord position.
In order to enable easy removal of the covering and the beams, the lever arm co-acts with an anchor plate fastened against the window recess, which plate is provided with a hook-like recess in which the arm is detachably and rotatably supported.
The above construction according to the present invention also lends itself to arrangement of a second beam close to the main beam, such that both auxiliary beams can be protected at the upper and lower limits of the window recess. This offers the advantage particularly in the case of windows with great light incidence that a ventilation gap is created at either the top or bottom or both edges of the covering, whereby the temperature in the space between the window covering and the glass plate will not rise too high.
Above mentioned and other features of the invention will be further elucidated in the drawings and description of the invention.
DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a perspective view of a window covering in the form of a pleated material, provided respectively with the tensioning and eccentric mechanism according to the invention.
FIG. 2 shows a standing section of the window covering of FIG. 1.
FIG. 3 is a perspective view corresponding with FIG. 1, but with the parts of the eccentric mechanism in exploded view.
FIG. 4 is a perspective view on enlarged scale of the lever arm in the eccentric mechanism according to the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 1, a window covering is formed by a pleated material 1 which consists of a length of material folded in zig-zag form and respectively guided and supported by tensioning cords 2 fastened between a first beam 3 secured to the top edge of the material 1 and a second beam
REFERENCES:
patent: 2394847 (1946-02-01), Delegard
patent: 2759537 (1956-08-01), Lang
patent: 2822868 (1958-02-01), Roberts
patent: 2880797 (1959-04-01), Alvarez et al.
patent: 2901035 (1959-08-01), Anderle
patent: 4557309 (1985-12-01), Judkins
patent: 4733711 (1988-03-01), Schon
patent: 5069264 (1991-12-01), Klawiter
Crandell Ralph F.
Purol David M.
Schon B.V.
LandOfFree
Tensionable window convering does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tensionable window convering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tensionable window convering will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1881013