Collapsible dome frame

Details Collapsible dome frame Collapsible dome frame

1978-05-30

1980-03-11

Machado, Reinaldo P.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

A45F 116

Patent

active

041923340

ABSTRACT:
A collapsible dome-shaped frame for a tent or similar structure includes a polygonal top ring formed of alternating fixed and pivotal sections, with a foldable, arcuate leg or pole connected to each pivotal section. In the collapsed condition of the frame, the poles extend downwardly, substantially at a right angle to the plane of the top ring forming a barrel-shaped cage for carrying a tent and groundsheet. In order to open the frame, the poles and each pivotal section are rotated relative to the fixed sections of the top ring, so that the poles extend outwardly from the top ring in the same plane as such ring, and the pivotal sections are locked in the open position. The poles, which are formed of arcuate segments interconnected by self-locking hinges, are unfolded to the open position, in which they define the dome-shaped frame with the top ring.

REFERENCES:
patent: 1253776 (1918-01-01), Brewer
patent: 2953145 (1960-09-01), Moss
patent: 3683427 (1972-08-01), Burkholz

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