| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a floor joint device which has the structure simplified and which is safely available for making a joint part narrow by preventing a distal end portion of a floor joint plate from protruding from a floor surface or without backlash even if right and left floor skeletons are shaken by an earthquake.SOLUTION: The floor joint device comprises: a floor joint plate slide supporting recess with the anti-joint part side formed into a slope in one joint part side floor skeleton; a floor joint plate with the distal end portion supported by the floor joint plate slide supporting recess and the rear end portion mounted to the other joint part side floor skeleton in such a manner that the distal end portion can be rotated upwards along the slope and a top face becomes the same surface as floor surfaces of right and left floor skeletons; and a cover plate mounted to the distal end portion of the floor joint plate in a rotatable manner. The floor joint device is configured by forming, on a bottom face excluding the distal end portion of the floor joint plate, a recess for keeping the state where the distal end portion of the floor joint plate is brought into contact with a floor surface of one floor skeleton even when the distal end portion of the floor joint plate is slid and moved from the slope in a floor surface direction of the one floor skeleton.</p> |
