Double floor structure

Details Double floor structure Double floor structure

2003-01-31

2009-02-17

Glessner, Brian E. (Department: 3633)

Static structures (e.g., buildings)

With lifting or handling means for primary component or...

Position adjusting means; e.g., leveling

C052S126700, C052S263000, C052S220500

Reexamination Certificate

active

07490439

ABSTRACT:
An upper floor member30unitarily includes a floor panel portion30afor forming a floor surface 12, a first wall portion30bextending downwards from circumferential edges of the floor panel portion30aand continuous in the circumferential direction, and a second wall portion30cspanned between opposed portions of the first wall portion30band progressively increased in thickness toward the center of the floor panel portion30a.The floor panel portion30ais polygonal in shape, and the first wall portion30bis progressively increased in thickness toward the center of each side. The first wall portion30bextends downwards to the vicinity of the lower floor, and its lower end is supported by a support means18.Thus, a double floor structure which is inexpensive, has a high stiffness, good workability, and offers a high vibration-damping performance can be provided.

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