| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor bed structure simple and easy to construct and free of creaking without need for backer plywood. SOLUTION: A floor bed structure includes joist units 1 having vertically adjustable supporting legs suspended from the lower face of a square timber with joint portions at both ends and steady brace materials 8 having a plurality of recessed joist cap portions 9 equally spaced from each other so as to fit the square timber perpendicularly thereto along the longitudinal direction. The plurality of joist units 1 are joined to each other to form straight joist connections 1m which are arranged at preset spaces in parallel to the upper face of a concrete floor F, and the plurality of steady brace materials 8 are laid thereabove perpendicularly to the joist connections 1m and the joist cap portions 9 are fitted and fixed to the joist units 1 to form the floor bed structure.
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