Portable folding play structure

1. A portable folding structure having a collapsed configuration and an opened configuration, the portable folding structure comprising:

a plurality of hingedly coupled walls each having a front surface and a back surface, the plurality of hingedly coupled walls comprising at least a left wall, a right wall, and a center wall;

a left collapsible structure coupled to the left wall, the left collapsible structure comprising one or more panels that are rotatably coupled to the left wall and extend away from the front surface of the left wall when the portable folding structure is in the opened configuration;

a right collapsible structure coupled to the right wall, the right collapsible structure comprising one or more panels that are rotatably coupled to the right wall and extend away from the front surface of the right wall when the portable folding structure is in the opened configuration; and

a center panel coupled to the center wall,

wherein, when the portable folding structure is in the opened configuration:

the left collapsible structure is detachably connected to the right collapsible structure, and

the center panel extends away from the front surface of the center wall and at least partially covers a void formed between the left collapsible structure and the right collapsible structure.

2. The portable folding structure of claim 1 , wherein the one or more panels of the left collapsible structure comprises at least a lower panel and an upper panel, the lower panel at least partially forming a floor of the portable folding structure in the opened configuration, and the upper panel being positioned above and spaced apart from the lower panel in the opened configuration.

3. The portable folding structure of claim 2 , wherein the left collapsible structure further comprises a front panel rotatably coupled at an upper end to the upper panel and at a lower end to the lower panel.

4. The portable folding structure of claim 3 , wherein, when the portable folding structure is in the opened configuration, the front panel of the left collapsible structure is oriented at a right angle to a front panel of the right collapsible structure.

5. The portable folding structure of claim 1 , wherein the one or more panels of the right collapsible structure comprises at least a lower panel and an upper panel, the lower panel at least partially forming a floor of the portable folding structure in the opened configuration, and the upper panel being positioned above and spaced apart from the lower panel in the opened configuration.

6. The portable folding structure of claim 5 , wherein the right collapsible structure further comprises a front panel rotatably coupled at an upper end to the upper panel and at a lower end to the lower panel.

7. The portable folding structure of claim 6 , wherein when the portable folding structure is in the opened configuration, the front panel of the right collapsible structure is oriented at a right angle to a front panel of the left collapsible structure.

8. The portable folding structure of claim 1 , wherein the left wall is hingedly coupled to the center wall by a first hinge panel, and the right wall is hingedly coupled to the center wall by a second hinge panel.

9. The portable folding structure of claim 8 , wherein the first hinge panel and the second hinge panel comprise different widths such that, when the portable folding structure is in the collapsed configuration, with the left wall, right wall, and center wall being substantially parallel to one another, a distance from the left wall to the center wall is different than a distance from the right wall to the center wall.

10. The portable folding structure of claim 1 , wherein, when the portable folding structure is in the opened configuration:

the left collapsible structure comprises a proximal end connected to the left wall and a distal end spaced apart from the left wall,

the right collapsible structure comprises a proximal end connected to the right wall and a distal end spaced apart from the right wall, and

a right side of the left collapsible structure's distal end is detachably connected to a left side of the right collapsible structure's distal end.

11. The portable folding structure of claim 1 , wherein, when the portable folding structure is in the opened configuration, the left collapsible structure is detachably connected to the right collapsible structure using one or more tabs that fit into corresponding slots.

12. The portable folding structure of claim 1 , wherein, when the portable folding structure is in the opened configuration, the center panel is detachably connected to at least one of the left collapsible structure or the right collapsible structure.

13. The portable folding structure of claim 1 , wherein, when the portable folding structure is in the opened configuration and the portable folding structure is resting on a horizontal ground surface, the left collapsible structure, the right collapsible structure, and the center panel each form a horizontal support surface that is suspended above the horizontal ground surface.

14. The portable folding structure of claim 1 , wherein, when the portable folding structure is in the opened configuration, the front surface of the left wall is oriented at an obtuse angle with respect to the front surface of the center wall, and the front surface of the right wall is oriented at an obtuse angle with respect to the front surface of the center wall.

15. The portable folding structure of claim 1 , wherein the plurality of hingedly coupled walls comprise corrugated cardboard hingedly coupled at a plurality of integral hinge joints formed by scoring said corrugated cardboard.

16. The portable folding structure of claim 1 , wherein the left and right collapsible structures are multi-tiered structures.

17. The portable folding structure of claim 1 , wherein, when the portable folding structure is in the opened configuration, the left and right collapsible structures each form at least one cavity that is open on left and right ends.

18. The portable folding structure of claim 1 , wherein:

the left collapsible structure is positioned to be collapsed upward toward the front surface of the left wall when the portable folding structure is in the collapsed configuration, and to be expanded downward away from the front surface of the left wall when the portable folding structure is in the opened configuration, and

the right collapsible structure is positioned to be collapsed upward toward the front surface of the right wall when the portable folding structure is in the collapsed configuration, and to be expanded downward away from the front surface of the right wall when the portable folding structure is in the opened configuration.

19. The portable folding structure of claim 1 , wherein the right wall and the left wall can fold over the center wall when the left and right collapsible structures are collapsed, to form a more compact structure than when the portable folding structure is in the opened configuration.

20. The portable folding structure of claim 1 , wherein at least one of the left collapsible structure or the right collapsible structure forms a plurality of stairs when the portable folding structure is in the opened configuration.