US Patent 7591705 Miniature expandable toy train system

A toy train is provided having a folding body with body segments joined by a hinge, adapted to engage a base having wheels. The folding body may be disassembled for storage in a generally flattened arrangement. A novel drive assembly for a toy train or toy train accessory is provided having a motor and a gear, which can be removably inserted in the base and covered by the folding body. A storage kit is provided including a storage case for storing a folding body of a toy train, a base for a toy train, and a drive assembly for a toy train. A toy train set is provided including tiles with raised train tracks. The tiles are joined by dovetail joints. Themed tiles are provided for creating a multi-themed play environment.