| 摘要 |
PROBLEM TO BE SOLVED: To facilitate delicate positioning of a floor device without depending on manual work, to realize shortening of mandays in setting the floor device, etc., by promoting enlargement of a floor member thereby and to easily and certainly carry out binding work without directly reaching a connecting point under the floor member by hand. SOLUTION: A plural number of positioning fittings 9 having wedge type cutouts 9b are provided on a support frame 5A provided on obe side part of a floor member with specified setting intervals between them, and a plural number of plate type engagement fittings 10 are provided on a support frame 5B provided on the other side part of the floor member with specified setting intervals between them. Centering is carried out by pressing a newly setting floor member having the engagement fittings 10 against the existing floor member having the positioning fittings 9 by a pressing fastening member, an inclined contact part 10a of the engagement fitting 10 sinks under the positioning fitting 9, and a floor plate main body is held without dislocation.
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