| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a floor joint device which is capable of pushing upwards a rear end portion of a floor joint plate when a joint part is made narrower by an earthquake, and of which the push-up structure is simplified and the installation work is facilitated.SOLUTION: A floor joint device 1 comprises: a joint plate slide supporting recess 5 which is formed on a joint part side floor surface of one skeleton 3; a joint plate supporting recess 6 which is formed on a joint part side floor surface of another skeleton 3; a floor joint plate 7 of which the rear end portion is supported by the joint plate supporting recess 6 and the front end portion is supported by the joint plate slide supporting recess 5; a mounting tool 8 for mounting the rear end portion of the floor joint plate 7 to the other skeleton in an upward rotatable and movable manner; a support base 18 fixed to the other skeleton 3; a guide cylinder 22 fixed to a top face of the support base 18; a push-up rod 23 which is rotatable within the guide cylinder 22 and can be slid and moved upwards; and a floor joint plate push-up device 9 which pushes the push-up rod upwards when a joint part is made narrower by an earthquake.</p> |
