A three-dimensional logic puzzle is provided. The puzzle includes a plurality of identically shaped puzzle components of an irregular form. Each puzzle component is configured to engage with another identically shaped puzzle component via projections and recesses formed on the sides of the puzzle components. The plurality of puzzle components are interengagably assembled into the form of a predetermined three-dimensional geometric shape.

The present invention provides a connecting structure for plate members, including a projection projected from one of the plate members in a first direction, and a groove provided on the other of the plate members to have inner faces facing each other in a second direction intersecting the first direction and configured to fittingly receive the projection. The projection includes a main body, a resilient portion provided on one side of the main body in the second direction and resiliently inwardly deformable in the second direction, and an engagement portion outwardly expanded in the second direction from the resilient portion and configured to be plastically deformed along and engage with one of the inner faces of the groove when the groove fittingly receives the projection.

A three dimensional puzzle assembly includes a three dimensional puzzle comprising a plurality of puzzle pieces. Each of the puzzle pieces has a series of channels and fingers each being integrated into the puzzle pieces. The channels in each of the puzzle pieces insertably receive a finger on a respective one of the puzzle pieces such that the puzzle pieces fit together. Additionally, the three dimensional puzzle has the ornamental appearance of a three dimensional object when the three dimensional puzzle is assembled. Each of the plurality of puzzle pieces has dimensions sufficiently large for being incapable of being swallowed by a child. A toy is positionable within the three dimensional object defined by the three dimensional puzzle when the three dimensional puzzle is assembled. The toy is exposed when the user successfully disassembles the plurality of puzzle pieces.

A handheld touch apparatus for providing a variety of tactile sensations to the fingers and thumb of a hand of a user. The touch apparatus includes a multi-faceted block body having an outer surface defined by a plurality of planar faces joined together by radiused edges that meet together to form rounded corners. The block body is sized for holding within the palm of the user's hand and for being supported, rotated and manipulated by the fingers and thumb of the same hand. The touch apparatus further includes tactile features extending from the planar faces of the block body and that are selectively movable relative to their associated planar faces. The tactile features are contained within the volume of an imaginary sphere defined by the rounded corners and isolated from the tactile features on adjacent planar faces by the radiused edges of the block body.

A jigsaw-type puzzle has pieces that do not need to be flipped or turned prior to, or during assembly of the puzzle. The pieces have peripheral shapes or outlines that are symmetrical along at least one axis, with mirror images being printed on both sides of each piece so that either side of each piece can be used during assembly. Each piece shows a portion of a two-dimensional image, such that when the pieces are assembled, the two-dimensional image is completed. Each piece has first and second sides, with each piece portraying the same portion of the two-dimensional design, such that either side of any piece can be used to complete the puzzle. The invention is applicable to edge pieces, corner pieces and inner pieces, including square pieces with rounded tabs and voids that “interlock,” as well as non-traditional shapes, with or without interlocking joints, and tabs and voids with other shapes.

A three-dimensional puzzle comprising a plurality of cuboid puzzle blocks together forming a predetermined three-dimensional puzzle shape, wherein each puzzle block comprises either a male or a female connecting element on each of at least three sides of the puzzle block; wherein the connecting elements for the respective puzzle block are configured such that each puzzle block is unique.

The Letter Cubes are block to make buildings that do not just make a statement with their rooms, walls and the like, but also make verbal statements with the blocks themselves. It has a series of three-dimensional fonts made with metal, plastic, ceramic, glass, recycled materials and other materials that magnetically, with knobs, hooks, snaps and tubes (and combinations of these and other interfaces) assemble into walls, buildings and other structures that communicate messages. These alphabets also have a series of related pieces that include numbers, punctuation and additional knobs, beams and panels that enable construction of a wide range of buildings, toys, structures and objects that are artistic, toys, games and that are otherwise useful as boxes, chairs, tables, etc. The invention comes in its own box that is assembled further to the same logic as the alphabets so it does not have packaging waste.

Puzzle kits include a first puzzle and a second puzzle, each of which is formed of a plurality of polyhedral modules, or polyhedrons, connected by hinges in a continuous loop. Each polyhedron includes four faces, six edges, and at least one magnet disposed adjacent to at least one face. Magnetically stabilized assemblies of the first puzzle and the second puzzle form at least a convex polyhedrons, such as a cube.

The invention relates to a three-dimensional tile, of metal or plastic, having at least one face (1) with an octagonal socket (2) and another face (1) with an octagonal projection (3). Each tile is joined in this way with a similar tile, forming structures in space. The octagonal socket (2) has an inner embossed cord (7) miming along it to which a tooth (6) carried on the straight sections (4), which together with the corner sections (5) form the octagonal projection (3), attaches. The 3D tile can be used to create structures of both aesthetic and utility nature.

A handheld touch apparatus for providing a variety of tactile sensations to the fingers and thumb of a hand of a user. The touch apparatus includes a cubic body having an outer surface defined by a plurality of faces that are planar and orthogonal to one another and joined together by radiused edges that meet together to form rounded corners. The cubic body is sized for holding within the palm of the user's hand and for being supported, rotated and manipulated by the fingers and thumb of the same hand. The touch apparatus further includes tactile features extending from the faces of the cubic body and that are selectively movable relative to their associated faces. The tactile features are contained within the volume of an imaginary sphere defined by the rounded corners and isolated from the tactile features on adjacent faces by the radiused edges of the cubic body.