Foldable dome

Details Foldable dome Foldable dome

1989-08-08

1991-04-02

Scherbel, David A.

Tent, canopy, umbrella, or cane

Portable shelter

Plural shelters, shelter having plural compartments, or...

135103, 135102, E04H 1518

Patent

active

050040014

ABSTRACT:
A foldable dome which comprises a set of bowed supports made up of a driving bowed support, an end bowed support and intermediate bowed supports, said bowed supports ending into levers projecting out of the planes thereof. These bows are supported, on each side of the dome, on bowed supports provided at the top with the pivot mechanism each of which comprises an axle, transverse said bowed supports, over which said levers on one side of said bowed supports are mounted so as to allow rocking of said bowed supports between a folded position, on one side of said axle, and an unfoldable position wherein said bowed supports are supported around said axle in the form of a dome. The axle dividing said levers of said divides and end bowed supports each into a driven section, on the bowed support side and a driving section on the side away from the bowed supports. The pivot mechanism further comprises an axially extensible device of which one end is pivotably mounted at the top of said post and a linkage mechanism pivotally connecting the other end of the device simultaneously to the lever driving section of the driving bowed supports and to the lever driving section of the end bowed support, on opposite sides of the device. Finally, a sheltering fabric is connected successively to the bows so that extension and shortening of the device causes, through the linkage mechanism, rocking of the bows between the aforesaid processions with driving of the fabric and when the end bows is held stationary.

REFERENCES:
patent: 2036033 (1936-03-01), Fisher
patent: 2829659 (1958-04-01), Megenity
patent: 2877722 (1959-03-01), Peat
patent: 3563257 (1971-02-01), Cummins
patent: 3865123 (1975-02-01), Bracken
patent: 4120067 (1978-10-01), Hone et al.
patent: 4163295 (1979-08-01), Schutz
patent: 4440187 (1984-08-01), Fiddler

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