| 摘要 |
<p>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 means, the undercut recesses constituting female joining means, 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 means will cause the head portions of the male joining means and the undercut portions of the recesses to snap into mutual engagement. <IMAGE></p> |
