Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – With mounting or supporting means
Patent
1989-10-31
1991-06-11
Purol, David M.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
With mounting or supporting means
160197, 49125, 49127, E05D 1500
Patent
active
050224549
ABSTRACT:
A collapsible double door assembly includes a number of serially connected panels each provided with a pair of inwardly and outwardly deviated pivotal suspension rollers, a horizontal guide rail constituted by an inner rail member and an outer rail member arranged in parallel in close proximity for separately guiding the suspension rollers, and one or two door storage areas extending perpendicularly from the guide rail at one or both ends thereof and formed by separating and independently bending the two rail members with different radiuses of curvature each defining an arc of a quarter of a circle. The radius of curvature of the outer rail member is relatively greater than that of the inner rail member. The distance between the two rail members in a door storage area is slightly smaller than the distance between the two suspension rollers of a panel. With such an arrangement, each panel of the double doors can be freely twisted by independently varying the angle of pivotal movement of each of the suspension rollers of the panel. Consequently, the panels can be moved into or pulled out of the storage areas very smoothly, particularly because the panels are stored in the storage areas in a slightly twisted state.
REFERENCES:
patent: 1960860 (1934-05-01), Allen
patent: 3071825 (1963-01-01), Ferris
patent: 3334375 (1967-08-01), Hubbard
patent: 3394496 (1968-07-01), Pulaski
patent: 4569164 (1986-02-01), Dickson
Hori Keishirou
Kobayashi Mitsuru
Purol David M.
Toyo Exterior Kabushiki Kaisha
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