| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint device for a floor capable of preventing the fact of becoming a dangerous state, even if swing motion such as widening or narrowing a joint part by an earthquake is caused between left-right floor skeletons in which an obstacle such as a column and a wall surface exists in the vicinity of an end part of the joint part.SOLUTION: The joint device is constituted of a left-right floor skeletons 4 having an obstacle 3 in the vicinity of the end part of a joint part 2, left-right support members in which a tip part more than a joint part side end part of left-right fixed support members 5 fixed to an upper surface of the floor skeletons 4, has left-right movable support members 6 provided so as to always project to a central part of the joint part 2, left-right fixed joint plates 9 supported by the left-right fixed support members 5 and formed on an inclined plane 8 having the lower tip projecting to the joint part side, a central joint plate 10 arranged so as to contact with the inclined plane 8 of the fixed joint plate 9, at least two central maintaining mechanisms 11 vertically movably installed on a central bottom surface of the central joint plate 10 and left-right stoppers 12 for preventing the left-right movable support members 6 from projecting more than necessary. |
