| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor joint device capable of smoothly pushing up a rear end part of a joint plate upward, when left-right floor skeletons swingingly move so as to narrow a joint part by an earthquake.SOLUTION: The floor joint device is constituted of a joint plate slide support recess 5 formed on a joint part side floor surface of one floor skeleton, a joint plate 8 for slidingly movably supporting a tip part by this joint plate slide support recess 5 and installed on the joint part side of the other floor skeleton so that a rear end part can move upward, a joint plate pushing-up piece 15 provided on a bottom surface near the rear end part of this joint plate 8, a pushing-up mechanism 17 of using a roller for pushing up the joint plate pushing-up piece 15 upward and a cover plate 13 installed in the tip part of the joint plate. |
