Quickly erectable, quickly collapsible, self supporting portable structure

A portable structure operable for transforming from a fully collapsible configuration into an upstanding fully expanded configuration and thence back into the fully collapsible configuration comprising:

• a set of at least three side members each having:
• an independent continuous self expandable frame formed from a flexible coilable material, the frame forming a single loop when expanded, and three overlaying loops when collapsed;
• a side panel formed from a foldable material;
• first means for confining the frame and allowing the frame to slide in the first means, the first means having a top left part and a top right part;
• and
• second means for attaching the side panel to the first means,
• whereby when the frame is expanded the side panel is pulled taut by the frame;
• third means for hinging a portion of the top right part of the first means of one side member to a portion of the top left part of the first means of one other side member,
• thereby forming when the portable structure is in its fully expanded configuration a ring of side members each hinged at the top left part to another side member and at the top right part to yet another side member,
• the third means additionally for permitting folding of each side member over another side member of the set of the side members while the side members are hinged together thereby forming a stack of overlaying side members;
• and
• fourth means for restraining each side member, for stabilizing the portable structure and for maintaining it in the upstanding fully expanded configuration,
• wherein the flexible coilable material of the frame of the side members is operable simultaneously coiling the stack of overlaying side members into three overlaying loops thereby enabling the portable structure to be fully collapsed.

A portable structure operable for transforming from a fully collapsible configuration into an upstanding fully expanded configuration and thence back into the fully collapsible configuration comprising:

• a set of at least three side members each having:
• an independent continuous self expandable frame formed from a flexible coilable material, the frame forming a single loop when expanded, and three overlaying loops when collapsed;
• a side panel formed from a foldable material;
• first means for confining the frame and allowing the frame to slide in the first means, the first means having a top left part and a top right part, the first means including a pocket formed from a foldable material;
• and
• second means for attaching the side panel to the first means, the second means including stitching,
• whereby when the frame is expanded the side panel is pulled taut by the frame;
• third means for hinging a portion of the top right part of the first means of one side member to a portion of the top left part of the first means of one other side member, the third means including stitching,
• thereby forming when the portable structure is in its fully expanded configuration a ring of side members each hinged at the top left part to another side member and at the top right part to yet another side member,
• the third means additionally for permitting folding of each side member over another side member of the set of side members while the side members are hinged together thereby forming a stack of overlaying side members;
• and
• fourth means for restraining each side member, for stabilizing the portable structure and for maintaining it in the upstanding fully expanded configuration,
• wherein each side member has a bottom part intended for resting on a horizontal surface when the portable structure is fully expanded, and
• wherein the fourth means is additionally for maintaining the bottom part of the side members in a predetermined horizontal separation orientation,
• wherein the fourth means includes a floor panel member formed from a foldable material, and
• wherein the bottom part of each of the side members is connected by stitching to the floor panel member,
• wherein the flexible coilable material of the frame of the side members is operable simultaneously coiling the stack of overlaying side members into three overlaying loops thereby enabling the portable structure to be fully collapsed.