| 摘要 |
<p>The modular base (6) for a playing structure, such as a toy building set, includes a first planar member (92), or tile base, having attachment fittings on its bottom for removable attachment to a substructure, such as a lattice (4). The top of the first planar member has attachment fittings (104) thereon. Preferably, each of the attachment fittings on the top of the first planar member are aligned with one of the attachment fittings on the bottom to form a common opening through the first planar member. The modular base also includes a second planar member (94), or tile, having attachment fittings on its bottom. The attachment fittings (20) are preferably protrusions that are most preferably clover leaf in shape and have an interference fit with the attachment fittings on the top of the first planar member that are most preferably square openings.</p> |
