Educational toy

Claim 2

An educational toy, the toy comprising at least a pair of blocks each having at least one slot in a plurality of faces of the block, each said block being formed of four square tubes of equal size connected in parallel laterally aligned relation by a cross-shaped joiner piece, said joiner piece having four legs of equal size and having a respective square tube positioned in each quadrant of the joiner piece and extending beyond the free ends of the legs forming said quadrant, said legs thus determining the spacing between the tubes to form the slots and also determining the depth of the slots, and at least one strip dimensioned such that the strips are snugly received in said slots, each said strip being flexible and such that when said strip interconnects a slot in each of two blocks positioned so that the respective slots are non planar, the strips are deflected and stressed to lock in said slots.

Claim 3

An educational toy as defined in claim 1 and including a joining piece formed by a pair of parallel plates joined by a planar spacer parallel to and attached to the faces of said plates, each plate having a half width strip attached thereto to protrude therefrom at right angles, the half strips being in a common plane to be adapted to be inserted in the slots of the blocks.

Claim 4

An educational toy as defined in claim 1, and including a cross-shaped connector piece, the cross-shaped connector piece fitting into the cross-shaped end slots of the block to connect a pair of blocks in end to end relation.

Claim 5

An educational toy, the toy comprising at least a pair of blocks each having at least one slot in a plurality of faces of the block, each said block being formed of four square tubes of equal size connected in parallel laterally aligned relation by a cross-shaped joiner piece, said joiner piece having four legs of equal size and having a respective square tube positioned in each quadrant of the joiner piece and extending beyond the free ends of the legs forming said quadrant, said legs thus determining the spacing between the tubes to form the slots and also determining the depth of the slots, said cross-shaped joiner piece being shorter than said square tubes all of which are of equal length so as to form end slots in said blocks, and a cross-shaped connector piece, the cross-shaped connector piece fitting into the cross-shaped end slots of the blocks to connect a pair of blocks in end to end relation.

Claim 6

An educational toy, the toy comprising at least a pair of blocks each having at least one slot in a plurality of faces of the block, each said block being formed of four square tubes of equal size connected in parallel laterally aligned relation by a cross-shaped joiner piece, said joiner piece having four legs of equal size and having a respective square tube positioned in each quadrant of the joiner piece and extending beyond the free ends of the legs forming said quadrant, said legs thus determining the spacing between the tubes to form the slots and also determining the depth of the slots, said cross-shaped joiner piece being shorter than said square tubes all of which are of equal length so as to form end slots in said blocks, and a cross-shaped connector piece, the cross-shaped connector piece fitting into the cross-shaped end slots of the blocks to connect a pair of blocks in end to end relation.

Claim 7

An educational toy as defined in claim 4 and including a joining piece formed by a pair of parallel plates joined by a planar spacer parallel to and attached to the faces of said plates, each plate having a half width strip attached thereto to protrude therefrom at right angles, the half strips being in a common plane to be adapted to be inserted in the slots of the blocks.