| 摘要 |
PROBLEM TO BE SOLVED: To provide a frame body for a floor opening which is installed with high positional accuracy while realizing the simplification of execution work by eliminating an auxiliary floor joist and secures air tightness and heat insulating property by preventing the deformation of the frame body itself and prevents stumbling or the like and further has a high degree of freedom of an installation place. SOLUTION: The frame body for the floor opening is provided with a frame member comprising a base body which has a shape fitted in the floor opening and has a plurality of mounting holes that pass through from the opening side to the floor joist side and a fitting part which is formed in the base body and is fitted to a floor surface and with a support member which has a shape inserted into the mounting hole and has an insertion hole into which a fixing tool is inserted from the opening side to the floor joist direction. COPYRIGHT: (C)2008,JPO&INPIT
|
