| 摘要 |
A portable structure operable for transforming from a collapsible configuration into an expanded configuration and back comprising: a frame (50) formed from a flexible coilable material having, when in an expanded configuration, a shape of a figure eight thereby defining two loops (52, 53) and a crossover (54), said loops (52, 53) each having a straight portion (55, 56) preventing said structure, in expanded configuration, from rolling over and for maintaining said crossover (54) at the apex of said structure. |
