Toy construction piece and kit thereof

A kit for assembling a toy comprising:

• (a) standard toy construction blocks, each of said standard blocks having a given width and a given length and a top on which extends at least one row of at least one upwardly projecting peg, each of said at least one peg having a center, each of said standard blocks also having a bottom provided with means cooperating with said at least one peg of another standard block for releasably interlocking said standard block on top of said another standard block, wherein the width of each of said standard blocks is an integer multiple of a distance d and said length is another integer multiple of said distance d, and wherein said upwardly projecting peg is centered within a square of length d such that when said standard block has more than one row of more than one peg, the longitudinal and transverse distance between the centers of each pair of adjacent pegs is equal to d, and
• (b) at least one toy construction piece,
• said toy construction piece being in the form of a half-shell with an inside surface and an outside surface, said toy construction piece comprising:
• a bottom portion lying in a plane P, said bottom portion having a periphery and including a bottom portion edge, said bottom portion edge having a first and second pair of parallel sides of length L1 and L2, respectively, said first pair of parallel sides being perpendicular to said second pair of parallel sides, said bottom portion being provided with means cooperating with the pegs of the standard blocks for releasably interlocking one or more of said standard blocks on said bottom portion of said toy construction piece;
• a top portion having a border, four corners and a rectangular opening therein, said top portion lying in a plane parallel to the plane P at a perpendicular distance D from said plane P, said border having a third and fourth pairs of parallel sides of length L3 and L4, respectively, said third pair of parallel sides being parallel to the first pair of parallel sides while said fourth pair of parallel sides is parallel to the second pair of parallel sides, said border having a top surface and an inner surface, the border of said top portion being provided with at least one row of outwardly projecting pegs identical to those of the toy construction blocks, the longitudinal distance between every a pair of pegs of said border being equal to d, said border including a peg at each corner;
• a bottom wall portion extending along the periphery of the bottom portion and towards said top portion, said bottom wall portion having a width W smaller than said distance D and having a fifth and sixth pairs of parallel sides of length L5 and L6, respectively, said fifth pair of parallel sides being parallel to the first and third pairs of parallel sides while said sixth pair of parallel sides is parallel to the second and fourth pairs of parallel sides;
• a first and second pairs of top wall portions, wherein said first pair of top wall portions has one top wall portion extending from one side of the fifth pair of parallel sides to the corresponding side of the third pair of parallel sides, said first pair of top wall portions also having another top wall portion extending from the other side of the fifth pair of parallel sides to the corresponding side of the third pair of parallel sides, and where said second pair of top wall portions has one top portion extending from one side of the sixth pair of parallel sides to the corresponding side of the fourth pair of parallel sides, said second pair of top wall portions also having another top wall portion extending from the other side of the sixth pair of parallel sides to the corresponding side of the fourth pair of parallel sides, said first and second pairs of top wall portions forming together a generally rectangular pyramidal shape and defining four generally dihedral recesses between the four adjacent top wall portions respectively, each of said dihedral recesses having a top bounded by said top portion and a bottom in the form of a flat surface lying in a plane parallel to the plane P at a distance w from said plane P, said flat surface extending perpendicularly inwardly from said bottom wall portion and having edges and an inside surface;
• wherein said flat surfaces are each provided with at least one row of at least one outwardly projecting peg identical to those of the toy construction blocks, the longitudinal distance between one peg and an adjacent peg of said at least one row being equal to d, the transverse distance between said one peg and said adjacent peg being equal to d and the distance between every peg adjacent to one of said edges and said one edge being equal at least to 1/2d.