Toy building construction set

A toy building construction set including a plurality of building units, each building unit comprising an integral panel having opposing outer and inner major sides connected by a first lateral side, an opposing second lateral side, a top, and an opposing bottom, the first lateral side having a first connection structure, the second lateral side having a second connection structure;

• wherein the first connection structure includes three pairs of second protrusions generally equally spaced from each other along a length of the first connection structure, each second protrusion being semicircular when viewed from a distal end, each pair of second protrusions collectively being generally circular when viewed together from the distal end, at least one pair of the second protrusions having a barb on each second protrusion of the pair;
• wherein the second connection structure includes three generally equally spaced second apertures along at least one of three sides of the second connection structure to enable engagement with the three pairs of second protrusions in the at least one of three sides of the second connection structure;
• and
• wherein each pair of second protrusions of a first building unit fits within the coinciding second aperture of a second building unit through one of the sides of the second connection structure, the barb extending through the corresponding second aperture and engaging an inner side of the second connection structure when the second connection structure is in facing engagement with and abuts one of the sides of the first connection structure, enabling locking engagement of the pair of second protrusions within the coinciding second aperture and the locking engagement of the first building unit with the second building unit.

A toy building construction set including a plurality of building units, each building unit comprising:

• an integral panel having opposing outer and inner major sides connected by a first lateral side, an opposing second lateral side, a top, and an opposing bottom, the first lateral side having a first connection structure, the second lateral side having a second connection structure;
• a connection member having a first male side and a second male side, the first male side being engaged with the first connection structure of the panel and at least part of the second male side projecting outwardly from the panel to provide a male connection side to the building unit, the male connection side being configured to releasably engage with a female connection side of another building unit, the male connection side being configured to releasably engage with any of three female connection sides of other building units, thereby allowing the interconnection of the building units, the second male side includes three pairs of second protrusions generally equally spaced from each other along a length of the male connection side, each second protrusion being generally semicircular when viewed from a distal end, each pair of second protrusions collectively being generally circular when viewed together from the distal end, at least one pair of second protrusions having a barb on each second protrusion of the pair;
• and
• the second connection structure having three generally equally spaced second apertures along at least one of three sides of the second connection structure to enable engagement with the three pairs of second protrusions, each pair of second protrusions of the connection member engaged with a first building unit fits within the coinciding second aperture of a second connection structure of a second building unit through one of the sides of the second connection structure, the barbs of the second protrusion pair extending through the corresponding second aperture and engaging an inner side of the second connection structure when the second connection structure is in facing engagement with and abuts one of the sides of the connection member, enabling locking engagement of the pair of second protrusions within the coinciding second aperture and the locking engagement of the first building unit with the second building unit.

A toy building construction set including a plurality of building units, each building unit comprising:

• an integral panel having opposing outer and inner major sides connected by a first lateral side, an opposing second lateral side, a top, and an opposing bottom, the first lateral side having a first connection structure, the second lateral side having a second connection structure;
• an elongate column having four elongate sides, one elongate side having open such that the other three elongate sides form a generally U-shaped channel of the column accessible along the one open side, the column channel receiving and being engaged with the second connection structure of the panel, the other three elongate sides of the elongate column each having female connection structures to provide a female connection side to the building unit;
• wherein the first connection structure includes three pairs of second protrusions generally equally spaced from each other along a length of the first connection structure, each second protrusion being semicircular when viewed from a distal end, each pair of second protrusions collectively being generally circular when viewed together from the distal end, at least one pair of the second protrusions having a barb on each second protrusion of the pair;
• wherein the elongate column includes three equally spaced second apertures along each of three sides of the elongate column to enable engagement with the three pairs of second protrusions in any of the three sides of the elongate column;
• and
• wherein each pair of second protrusions of the first connection structure of a first building unit fits within the coinciding second aperture of a second building unit through one of the sides of the elongate column, the barb extending through the corresponding second aperture and engaging an inner side of the elongate column when the first connection structure is in facing engagement with and abuts one of the sides of the elongate column, enabling locking engagement of the pair of second protrusions within the coinciding second aperture and the locking engagement of the first building unit with the second building unit.