A coupling toy, system, and kit is provided. In certain embodiments, the coupling toy may comprise a top surface and a bottom surface. The bottom surface may have one or more recesses sized to frictionally engage one or more studs along a toy platform. In some embodiments, the top surface may be connected or coupled to a toy character, such as a human-like toy, an animal-like toy, a toy building structure, or a portion of a toy building structure. The coupling kit may comprise a toy platform having a top surface with one or more studs disposed in a parallel matrix, and at least one toy figure having a top surface and a bottom surface. The top surface of the toy figure may be connected to a toy character or a toy building structure. The bottom surface of the toy figure may comprise one or more recesses sized to frictionally engage the one or more studs.

A building component for building structures, the building component configured to be releasable connectable to a second conjugate building component. The building component comprises a frame being a section of a basic geometrical shape. The frame having at least one side; the side having at least a protrusion. The conjugate building component being of the same structure also has a frame having at least one conjugate side; the conjugate side having at least a corresponding conjugate receptacle. When the building component and the conjugate building component are connected the sides of building components are next to each other. The protrusion and receptacle of the components snugly engage each other so that the inner and outer surfaces of the protrusion and receptacle are in contact with each other. The friction between the surfaces prevents the disconnecting of the components.

A brick (2) for the plug connection in a plug connection system in a space spanned by a longitudinal direction (4), a transverse direction (6) transverse to the longitudinal direction (4) and a height direction (8) transverse to the longitudinal direction (4) and transverse to the transverse direction (6), including: a first brick part (10) having an interior space (14) which is bounded by a wall (16) in the longitudinal direction (4) and the transverse direction (6) on both sides and in the height direction (8) on the top side (17), the first brick part (10) having a first plug connection element (18) on the top side (17). a second brick part (12) having an interior space (26) which is bounded by a wall (28) in the longitudinal direction (4).

A modular construction kit includes modular construction blocks, each includes at least one interface face. The interface face includes a recess, a plurality of connection apertures disposed proximate to the edge of the recess, and a circular interface receptacle disposed in the center of the recess. The kit also includes modular construction connectors, each includes two opposite sides, wherein each side including a body, a plurality of connection studs extending outwardly from the body, and a protrusion extending outwardly from the body. Some modular construction blocks include predetermined functions. A modular system block includes at least a processor, storage, and wireless communication.

In an aspect, a kit is provided for constructing a craft, and includes a plurality of blocks. Each block has a main body having an exterior surface that is made from a material that is adherent when exposed to water so as to permit the blocks to adhere to one another. Each block further includes a top surface and a block projection extending from the top surface. Each block further includes a bottom aperture extending into the main body towards the top surface, and defining a longitudinal axis. The bottom aperture includes a first aperture region that is shaped to receive the block projection of the second block of the plurality of blocks. The bottom aperture includes a second aperture region that is shaped to receive a distal portion of a block tray projection on a block tray.

In an aspect, a kit is provided for constructing a craft from a plurality of blocks. Each block has an exterior surface that is made from a material that is adherent when exposed to water so as to permit the blocks to adhere to one another. A block tray supports the plurality of blocks. The kit includes a water dispenser for dispensing water and a storage container. The storage container includes a lower housing member that contains at least one block storage compartment for holding the blocks, and a cover to mount at least indirectly to the lower housing member. The cover is openable, and is sized to fit over the block tray while the block tray holds the blocks. The cover further includes an opening that is sized to permit, during use, a user to dispense water onto the plurality of blocks on the block tray.

An object having a plurality of negative curvatures comprising a plurality of planar sections adjoined together by locking segments.

The present application discloses a splicing structure that can be broadly apply to toy, tool, furniture, handicrafts, jewelry or other fields. The splicing structure comprises a splicing block capable to detachably spliced with one another, said splicing block comprises a splicing hole and a splicing column. The splicing structure also comprises a plug piece having an insertion rod, said insertion rod having protrusions along its periphery; a receptacle having an insertion hole, wherein outer diameter of the protrusions, inner diameter of the insertion hole and outer diameter of the insertion rod decrease. The plug piece is mounted between the splicing column and the splicing hole, said receptacle is mounted within inner hole of the splicing column; when two splicing blocks are spliced through inserting a second splicing block into a first splicing block, insertion rod of the first splicing block is inserted into the insertion hole of the second splicing block by interference fit and the two splicing blocks are firmly spliced together by snap fit connection between the protrusions of the first splicing block and the insertion hole of the second splicing block.

A learning-based building block system is described. The learning-based building block system comprises at least two stackable blocks. The at least two stackable blocks may include: a first stackable block having a cube configuration, a second stackable building block having a sprocket configuration, a third stackable building block having a half-pipe configuration, and a fourth stackable building block having a table configuration. The configuration of each of the first, the second, the third, and the fourth stackable block is unique.

The invention relates to a toy building block system (100) comprising one or more building blocks (200); and one or more wheels (300); wherein each said building block (200) comprises: a first elongate portion (2) extending in a longitudinal direction (X); a second elongate portion (4) extending in said longitudinal direction (X); an intermediate portion (6) connecting said first elongate portion (2) with said second elongate portion (4) at a middle position (8) thereof; a first end portion (10) extending in a transverse direction (Y), perpendicular to said longitudinal direction (X), from said first elongate portion (2), at a side thereof opposite to said intermediate portion (6), and at a middle position thereof; a second end portion (12) extending in said transverse direction (Y), perpendicular to said longitudinal direction (X), from said second elongate portion (4), at a side opposite to said intermediate portion (6), and at a middle position thereof; said building block thereby comprises six protrusions (14) and two voids (16), wherein each void (16) is being defined between an end of said first elongate portion (2) and an end of said second elongate portion (4). wherein each said wheel (300) comprises a hub (18); and a wheel rim (20); wherein said wheel rim (20) is surrounding said hub (18); and wherein said wheel rim (20) is being attached to said hub (18) in such a way that said wheel rim is configured to be able to swivel around a rotational axis (A) in relation to said hub; wherein said hub (18) at a centre (22) thereof comprises a hole (24) extending in an axial direction (A); wherein the dimensions and geometry of said hole (24) are adapted to the dimensions and geometry of one of said protrusions (14) of said building block (200); so as to be able to accommodate said protrusion (14) and thereby hold said protrusion (14) of said building block (200) in place in said hole (24) of said hub (18) solely by friction.