FOUNDATION LOWER STRUCTURE FOR GAME ISLAND AND ITS INSTALLATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a foundation lower structure for a game island and its installation method allowing a plurality of foundation lower components to be arranged at proper positions more easily than before. SOLUTION: A plurality of foundation lower units 5a-5d are arranged to form this foundation lower structure. Island foundation lower components 7 and baseboard foundation lower components 9 constituting the foundation lower units 5a-5d have crank-like bent end faces with one end part protruded than the other end part. Adjacent foundation lower units (e.g. 5a and 5b) are relatively positioned by abutting on each other at the bent end faces.