Toy building blocks

Details Toy building blocks Toy building blocks

1998-07-13

2000-04-18

Ricci, John A.

Amusement devices: toys

Construction toy

Interfitting elements

446121, 52604, A63H 3308

Patent

active

060508736

ABSTRACT:
The invention provides a toy building block made of a semi-rigid plastic material and joinable to at least one other building block, including a plurality of projections extending from at least one surface of the block, and undercut recesses disposed on the surface opposite to the at least one surface, at least some of which recesses being in substantial alignment with the projections, the projections having a head portion and a neck portion of reduced size and constituting male joining elements, the undercut recesses constituting female joining elements, being at least partial counterparts of the projections, wherein, by application of pressure on two blocks to be joined, elastic deformation of at least the female joining elements will cause the head portions of the male joining elements and the undercut portions of the recesses to snap into mutual engagement.

REFERENCES:
patent: 3034254 (1962-05-01), Christiansen
patent: 3566531 (1971-03-01), Hasel et al.
patent: 4238231 (1980-12-01), Henderson
patent: 4606732 (1986-08-01), Lyman
patent: 5057049 (1991-10-01), Kaczperski
patent: 5209693 (1993-05-01), Lyman

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