| 摘要 |
A collapsible rod and joint structure forming a polyhedron frame comprising sleeve or sleeve-type open sleeve joints cooperating with corner connection joints at the ends of each arm of the structure. The folding of a polyhedron is accomplished when all of the horizontal base arms joining the vertical arms radiating from the apex joints are each folded on hinged corner joints at the base of each vertical arm to connect to, after disengaging from the corner connection joint on the adjacent vertical arm, are folded so that the arms rest in parallel and together, whereby all dual sets are folded toward each other so that all arms rest in parallel and together.
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