Abstract: Floor panel support legs support floor panels atop a floor slab and a double floor device uses such floor panel support legs. Each floor support leg is constituted by a pair of cylindrical first and second pedestal members and a fixing member for fixing the relative position between the first and second pedestal members, the first and second pedestal members having bottoms at their axial one end portions and thread portions at their inner and outer circumferential surfaces respectively so that they are thread-engaged with each other through their thread portions. The axial height of the support leg is set by the degree of thread engagement between the first and second pedestal members and the thus set height is fixed by the fixing member. Such support legs are arranged between a floor slab and floor panels at butted portions of the floor panels to support the floor panels to thereby constitute a double floor device.

Abstract: A stanchion unit assembly for supporting floor boards comprising: a plurality of vertical stanchion units including rests which constitute the upper portions of the vertical stanchion units and support the floor boards, and base plates which constitutes the lower portions of the vertical stanchion units and are disposed in contact with a floor foundation; a plurality of oblique member support stanchion units including rests which constitute the upper portions of the oblique member support stanchion units and support the floor boards, and base plates which constitute the lower portions of the oblique member support stanchion units and are provided with oblique member support parts; a plurality of floating rests supporting the floor boards on the tops of the floating rests and provided with oblique member support parts at the lower portions of the floating rests; and a plurality of oblique members extending from the oblique member support parts of each of the oblique member support stanchion units to those of t

Abstract: A stanchion unit assembly for supporting floor boards comprising: a plurality of vertical stanchion units including rests which constitute the upper portions of the vertical stanchion units and support the floor boards, and base plates which constitutes the lower portions of the vertical stanchion units and are disposed in contact with a floor foundation; a plurality of oblique member support stanchion units including rests which constitute the upper portions of the oblique member support stanchion units and support the floor boards, and base plates which constitute the lower portions of the oblique member support stanchion units and are provided with oblique member support parts; a plurality of floating rests supporting the floor boards on the tops of the floating rests and provided with oblique member support parts at the lower portions of the floating rests; and a plurality of oblique members extending from the oblique member support parts of each of the oblique member support stanchion units to those of t