| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint device for a floor, capable of safely absorbing large shakes during an earthquake even when there is no sufficient dimension to a boundary line.SOLUTION: The joint device for a floor comprises: one floor skeleton 5 provided to a boundary line 2 in the substantially same width dimension as a joint part 3; a joint plate support mechanism 8 fixed to an upper surface of the one floor skeleton 5 and provided with an actuation rod 7 attached so as to be projected at all times by a portion of the width dimension 4 of the joint part 3; a fixed joint plate 14 fixed to an upper surface of a support cylinder 6 of the joint plate support mechanism 8; another floor skeleton 12 having a projection part 11 positioned with the one floor skeleton 5 through the joint part 3; the joint plate 14 to which a rear end of the another floor skeleton 12 is attached to be movable upwards, and whose distal end part is supported by the joint plate support mechanism 8; a stopper 15 for regulating a projecting position of the actuation rod 7 of the joint plate support mechanism 8; and a support 17 for slidably supporting a support rod 16 projected downwards at a distal end of the actuation rod 7 of the joint plate support mechanism 8. |
