| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor plate which is light in weight, and exhibits sufficient strength. SOLUTION: The floor plate is formed of a triangular panel 2A or 2B which has its angular portions borne on a foundation floor by means of bearing legs. According to the structure of the triangular panel, hanging pieces 4 hanging from respective sides of a triangular surface plate 3, each have an inward facing piece 5 protruding from a lower edge thereof in a manner facing inward. Then the triangular plate has a reinforcing plate 13 attached to a lower surface of the surface plate 3. The reinforcing plate has a plurality of angular protrusions 14, 14 which are in parallel with one of the sides of the surface plate 3 and angularly protrude downward. Then both edges of a lower surface of each angular protrusion 14 abut on upper surfaces of the inward facing pieces 5 arranged on the other two sides of the surface plate 3. COPYRIGHT: (C)2005,JPO&NCIPI
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