Patent ID: 6929017

Claim:
A collapsible canopy framework structure of a regular polygon, comprising: a plurality of supporting members constituted as a column and each including a first fixed mount fastened to an upper end thereof and a first slide mount slidable thereon, the plurality of supporting members being radially moveable outward upon being expanded and movable toward a center post upon being folded; the center post including a second fixed mount fastened to a lower end thereof and a second slid mount slidable along a body thereof, the center portion having an upper portion of a dome type; a plurality of first frame assemblies including first and second X-shaped frame units, wherein the first and second X-shaped frame units each includes a pair of frames pivotally, each said first frame assembly being mounted at one end to the first slide and fixed mounts and at the other end to the second slide and fixed mounts and pivotally coupled at a center to each other, thereby connecting the respective supporting member to the center post, and wherein the plurality of first frame assemblies are mounted between the plurality of supporting members and the center post; a plurality of second frame assemblies including at least one X-shaped frame unit pivoted at a center for enabling the plurality of supporting members to be moved toward/spaced from each another, wherein each of the X-shaped frame units includes a pair of frames pivotally connected to the first slide and fixed mounts of respective ones of the plurality of supporting members; and a plurality of block nut structures mounted on the pivot points of the first and second X-shaped frame units of the plurality of first frame assemblies and including a through-hole formed at a center thereof, and a flexible string passed therethrough the through-holes of the block nut structures, thereby providing a tension to an overall structure.