A highchair includes a building block table, a booster stool and a feeding chair. The bottom of the booster stool is detachably connected to the top of the building block table. The bottom of the feeding chair is detachably connected to the top of the booster stool. Four sockets are provided on the top surface of the building block table. An elastic cover that is adapted to the socket covers the top of each socket. A plurality of vertical grooves are spaced apart on the inner periphery of each socket. The bottom surface of each socket is provided with a first spring receiving groove. A plurality of protruding blocks are spaced apart on the outer periphery of each cover. The protruding block is matched with a corresponding groove. The bottom surface of each cover is provided with a second spring receiving groove.

A connector element for a construction system, the construction system having first and second construction elements. The first type of construction elements comprising at least one construction element having connector knobs formed on a surface thereof and arranged in a regular two-dimensional lattice. The second type of construction elements comprising at least one construction element configured to cooperate with a connector peg to form a snap connection. The connector element comprising an elongate body having first and second ends and a longitudinal axis (A.sub.1). The first end having a first cylindrical connector portion, having an inner surface configured to form a friction fit, and an outer surface configured to form a friction fit between four neighbouring connector knobs formed on a first type of construction element. A second cylindrical connector portion configured to form a snap connection with the cylindrical connector opening of the second type of construction elements.

Building systems for creating three-dimensional structures include a plurality of polyhedral units, each unit being hingedly coupled to at least one adjacent unit, wherein the plurality of polyhedral units is arranged to be interchangeably manipulated between various forms of three-dimensional structures. The building system includes at least two types of plate-like building elements, including a single-piece element and a double-piece element that is formed of two single-piece elements arranged adjacent each other and being hingedly attached to each other at one of the edges of each of the two adjacently arranged single-piece elements.

An interlocking toy set comprising a plurality of interlocking pieces is disclosed herein. The interlocking pieces include a planar body having a top side, a bottom side opposite the top side, and a plurality of lateral edges that extend between and interconnect the top and bottom sides. The interlocking pieces also include a plurality of interlocking flanges that extend away from each lateral edge and configured to interlock with corresponding interlocking flanges formed on a lateral edge of an adjacent interlocking piece.

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.

A method for determining an assembly sequence of an assembling toy including a plurality of assembling elements disposed in a virtual space, Each of the assembling elements have at least one coupling part complementarily coupled to another coupling part, and connected to another assembling element through the coupling part, including a previously assembled element assembled to the assembling toy in the virtual space and a target assembling element that not yet assembled. The method for determining an assembly sequence includes: determining an assembly group in consideration of an upper surface height of the target assembling element connected to the previously assembled element, the upper surface height is calculated on the basis of a height from a ground to an upper surface of the target assembling element; and determining whether to generate a sub assembly group in consideration of the number of the assembling elements included in the assembly group.

The present invention relates to a method of controlling an ensemble of interacting toy construction models. The interacting toy construction models include toy construction elements having functional toy construction elements, the toy construction elements include coupling members configured for detachably interconnecting the toy construction elements with each other. The functional toy construction elements may perform a function in compliance with a configuration defining a functional behaviour. The method includes configuring the functional toy construction elements in the interacting toy construction models based on information on further functional toy construction elements in said interacting toy construction model to coordinate their functional behaviour in a model-behaviour; and further adapting the model-behaviour based on information on further interacting toy construction models in the ensemble. The invention also elates to a toy construction set for constructing an interacting toy construction model and a toy construction system comprising at least two interacting toy construction models.

An assembly structure includes a cylindrical part with an end closed on one side. The cylindrical part has three columnar protrusions that protrude from the end to one side and a cylindrical boss portion that is positioned within the cylindrical part such that the three protrusions of another assembly structure are fitted between the boss portion and an inner peripheral surface of the cylindrical part. The inner diameter of the cylindrical part is smaller than the sum of double the outer diameter of the protrusion and the outer diameter of the boss portion. When one protrusion of the other assembly structure is arranged on the outside of the cylindrical part, the two remaining protrusions of the other assembly structure are fitted between the boss portion and the inner peripheral surface of the cylindrical part.

The present invention discloses a polyhedral block with a plurality of intermittently magnetic sides. The magnetic intermittency is caused by a freely movable magnet that resides in and traverses in an inner cavity, exerting its pull-force through the side of the block to which it is nearest. The cavity is shaped to facilitate magnet movement in response to encountering an external magnetically attractable surface. As a user rotates the block on a magnetically attractable surface, the contained magnet is caused to move within its cavity, ultimately resting in a user-selected position on the magnetically attractable surface. The block contains one or more non-magnetic connection elements on its sides. These non-magnetic connection elements serve to connect the block with compatible, non-magnetic blocks and other objects.