| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a joint device for floors, which mounts cover plates to right and left joint plates covering joint parts and which can efficiently prevent the right and left cover plates from becoming immovable even when being swung due to an earthquake. <P>SOLUTION: The joint device 1 for the floor, which uses right and left trapezoidal joint plates 8 covering an angle-shaped joint part 4 formed in between an inner floor skeleton 2 and an outer floor skeleton 3 without clearance in a connecting manner, includes: one of rectangle cover plates 11 rotatably and in a protruding manner toward outside from the edge mounted to the end part of either the right or left joint plate 8 via hinge members 12; another cover plate 14 rotatably mounted to the end part of another joint plate via the hinge members 12; and a protruding preventive piece mounted to the cover plate 11 via the hinge members 12 so as to enable a corner of the side corresponding to another cover plate to rotate downward. <P>COPYRIGHT: (C)2012,JPO&INPIT |
