Disclosed herein is a toy building unit for playing capable of folding from a flat position into a three-dimensional hollow position.

A collapsible structure with opposite support panels and tab panels, comprising: two structure panels; at least two support panels, each connected to the structure panels via two folding lines at opposite; and at least two tab panels, each connected to the structure panels via two folding lines at opposite sides, each contains at least two internal folding lines perpendicular to the tab folding lines; wherein when the structure is in a collapsed position, the panels are adjacent and generally parallel to each other, the structure panels are folded; and wherein when the structure is in an erected position, the support panels are perpendicular to the structure panels and the tab panels are folded by the internal folding lines, each tab panel partially adjacent to one of the support panels to shape a fixed rod supporting the internal folding lines and inserted to support a rigid distance between the structure panels.

A convertible inflatable device includes a first inflatable bed, a second inflatable bed, a front chamber, a left chamber, a right chamber, and a rear chamber. The first inflatable bed is surrounded by the front chamber, the left chamber, the right chamber, and the rear chamber. The front chamber, the left chamber, the rear chamber, and the right chamber are connected to each other sequentially. A first end of the second inflatable bed is connected to the junction of the first inflatable bed and the rear chamber. The convertible inflatable device can be converted to an inflatable bed, an inflatable boat, an inflatable water slide or an inflatable recliner chair, and the conversion between any of them is mutual and convenient.

Provided may be a temporary structure comprising a junction assembly comprising a hub, wherein the hub is an annular member; a plurality of hinges, each of the plurality of hinges disposed on the hub; and a plurality of brackets, each of the brackets swivably attached to each of the plurality of hinges, each of the brackets having a first tine, a second tine, and a top wall. The temporary structure may further comprise a plurality of posts, each of the plurality of posts having a post top end and a post bottom end; a plurality of feet, each of the plurality of feet comprising a foot column and a base, wherein each of the plurality of feet are sized to accept the post bottom end and each of the plurality of brackets are sized to accept the post top end; and a plurality of panels.

Paper-based elongate structures suitable for use as lumber substitutes, articles of manufacture made thereof, kits of materials including such structures, and machines and methods for making the same. Elongate structures according to the invention include a hollow outer portion formed of corrugated fiberboard sheet material and an accordion-folded inner support formed of corrugated fiberboard sheet material. The hollow outer portion has four outer surfaces that define a rectangle when viewed in cross-section transverse to a longitudinal axis of the elongate structure. The accordion-folded inner support is enclosed within the hollow outer portion. The inner support includes a plurality of first spaced-apart peaks that contact a first inner surface of the hollow outer portion and a plurality of second spaced-apart peaks that contact an opposing second inner surface of the hollow outer portion. The accordion-folded inner support structure improves the beam strength, crush resistance and lateral strength of the elongate structure.

A play center including a number of frames secured to each other to at least partially define substantially vertical walls of the outdoor play center, each frame having two or more openings, and a number of panels, each panel having a body thereof, the panels being receivable in selected ones of the openings. Each of the openings is partially defined by one or more elongate side walls of each frame. Each panel includes one or more flanges extending from the body over at least a receiving portion of the side wall. The play center also includes a number of fasteners for fastening the flanges to the receiving portions.

An inflatable structure that includes a roof structure comprised of inflatable beams interlocked to form a hexagonal pattern. Inflatable columns support the roof structure. The inflatable columns can be selectively retracted to change the interior structure of the inflatable structure. Walls can be placed between the inflatable columns to further vary the interior structure and create mazes. The inflatable structure can be themed, e.g., by installing themed skins on interior surfaces of the room to provide a user experience. The inflatable structure may also include integrated virtual reality components, including a virtual reality headset supported by the structure.

Disclosed herein are toy building units of a toy building set. The building units comprise a sheet of a material that defines a net of a polyhedron, the sheet having a plurality of sections, each section being connected to another section with a hinge. The building units are configured to fold at the hinges from a flat configuration into a polyhedron with a hollow interior. The building units also comprise a plurality of joins on outer edges of the building unit, each join comprising one or more teeth configured to interleave with teeth of another join and releasably connect the sections of the building unit to form edges of the polyhedron. The sections, hinges and joins are all provided on one piece of the same material.

A child play structure comprising: a main plate having a max length greater than 58 cm or 80 cm and a max height greater than 58 cm or 80 cm and being arranged at an angle of less than 20 degrees to the vertical, a first side plate having a max length greater than 50 cm and a max height greater than 40 cm and being arranged at an angle of less than 20 degrees to the vertical, wherein said first side plate is fastened to the main plate in such a way that: the first side plate forms a fixed angle to the main plate of between 60 and 90 degrees and at least 30% of the max length of the first side plate extends past each side of the main plate. In this way a play structure is provided which has a very high play value and a very high stability with a low use of materials.

The present disclosure relates to a magnetic module assembly having opposing geometric frames and a plurality of connector struts that connect and extend between the geometric frames. Each of the geometric frames has a plurality of segments, with each segment having a magnet enclosure integrated in the segment. The segments are interposed between attachment points formed in the geometric frame, each attachment point having a pair of receptacles that are sized and shaped to receive a corresponding pair of connector pins from a connector strut. The segments of a geometric frame have a larger thickness compared to that of the attachment points, making the attachment points of the frame frangible.