The present invention relates to a power transmission apparatus for transmitting power between components, and a built-up type toy including the same. The power transmission apparatus comprises: a housing having an operating space firmed therein; a connection hole that is open in at least one direction of the housing; a gear assembly that operates in the operating space of the housing and has a connecting link on one end thereof which is exposed to the outside through the connection hole; and a coupling tube for selectively interconnecting two connection holes of the power transmission apparatus and a counterpart power transmission apparatus connected thereto, wherein the connecting link of the power transmission apparatus and a counterpart connecting link are connected and interworked with each other in the interior of the coupling tube.

An electronic building toy component having a main body having opposing top and bottom surfaces and a thickness and having wiring between the top and bottom surfaces and having a connecting feature at a peripheral edge of the main body. The connecting feature, such as a plug or receptacle that is compatible with other electronic building toy components, allows the electronic building toy component to be electrically coupled with other electronic building toy components, such as batteries, Bluetooth enabled hubs, lights, buzzers, motors, sensors, and other electrical connecting building components. Some components also include slots and taps for engagement with compatible features on other building toy components for mechanical coupling. A Bluetooth enabled hub also allows remote control of electronic building toy components using Bluetooth enabled devices, including smartphones and tablets.

A construction toy set includes a number of pieces of different shapes and colors which are configured to allow a user to construct a desired object or model by connecting selected pieces to one another. One of the pieces is a first joint piece constructed to connect two other pieces of the set for relative rotational movement about an axis of the piece. The joint piece has a body formed of two parts that are joined to one another for relative rotation about the joint piece axis, and each part is configured to connect to another piece of the set. The set also includes a second joint piece constructed to connect two other pieces of the set for relative rotational movement about two orthogonal axes of the piece. The bodies of the joint pieces emit a pleasant click sound when the parts of the bodies are turned by the user.

A stackable block, comprising: a wall having an inner surface and an outer surface, the wall comprising a strip of material having a first end and a second end with a plurality of transverse fold lines spaced there between, the wall configured to define a structure having an upper perimeter and a lower perimeter, wherein the structure is formed by the strip being folded about the transverse fold lines and the first and second ends being connected together, and wherein at least a portion of the inner surface is vertically offset from the outer surface such that the upper and lower perimeter have stepped configurations.

A luminous building block is provided with a luminous unit and a power supply module. The power supply module is used to supply power to the luminous unit. The said luminous building block glows without an external power source.

A luminous building block is provided with a luminous unit and a power supply module. The power supply module is used to supply power to the luminous unit. The said luminous building block glows without an external power source.

A construction kit enables building of complex structures. The kit can include pole connectors, along with a series of hubs. For instance, two-point hubs, four-point hubs, eight-point hubs, five-point hubs, six-point hubs, and a clip can be the constituent parts of the kit. Some of the hubs can be flexible to provide further utility and additional angles for building. Complex structures, such as a ball-shaped connector can also be achieved from the base components.

The present invention provides customizable building blocks comprising two half blocks that may be interconnected to form a whole block, allowing for the half blocks to be rotated and reattached to one another, thus changing the configuration and orientation of male and female connectors on the outer faces of the whole blocks. In a preferred embodiment, two half blocks combine to form a whole block, with each half block having an inner face, and outer face, and a plurality of side faces. The orientation of each half block when conjoined with another half block determines the number and orientation of male and female connectors on the outer faces of a whole block. The feature of conjoining two half blocks to create a whole block allows for the male and female connectors to be moved to different faces of the block depending on the desired building function and orientation.

A framing system for a construction set comprising a number of interchangeable elements which can be arranged to construct a variety of three-dimensional structures, as well as individual, stand-alone floors, which in turn are adapted to be stacked on one another. In some embodiments, the system comprises at least one central unit, a plurality of outer mid-columns, at least one tie beam corner unit, and/or at least one curved beam unit which cooperate to form a variety of stand-alone floors. The system comprises additional components which increase the stability of the construction set, including but not limited to internal corner brackets, cross pins, cross studs, square panels, and rectangular panels.

A sensory play system can include one or more stackers, each stacker comprises two walls connected at a hinge and designed to be moved between open and closed positions, one or both of the two walls comprising a transparent panel, wherein in the closed position an interior region is defined between the two walls; and a modeling compound to be received in the interior region.